Entries |
Document | Title | Date |
20080251267 | RIG FOR DRILLING OR MAINTAINING OIL WELLS | 10-16-2008 |
20080289839 | Method of controlling a screwdriving power tool - In a method for controlling a drive ( | 11-27-2008 |
20090008110 | MOBILE SELF-ERECTING DIRECTIONAL DRILLING RIG APPARATUS - An apparatus and method for horizontal drilling are provided. The apparatus has: (A) a thrust frame; (B) a carriage on the thrust frame; (C) a wheel truck, wherein a rearward portion of the thrust frame can be supported in a lowered position on the wheel truck; (D) a king pin for operatively connecting a forward portion of the thrust frame to a tractor; (E) a trailer-leg assembly that can be connected operatively between: (i) the forward portion of the thrust frame; and (ii) the ground; and wherein the trailer-leg assembly is capable of assisting in supporting the forward portion of the thrust frame: (a) in a raised position so a tractor can be connected for towing; and (b) in a lowered position where the forward portion of the thrust frame is in a lowered position adjacent the ground to assist in positioning the thrust frame in a position for drilling. | 01-08-2009 |
20090014192 | Control method and control unit for impact type screw fastening device - An object is to improve accuracy of tightening torque and to shorten time necessary for fastening a screw in an impact type screw fastening device that uses an electric motor as a rotation driving source. A control method for the impact type screw fastening device that uses an electric motor as a rotation driving source includes the steps of driving the motor to rotate by supplying current to the motor intermittently so that torque exerted on a load by rotation of the motor becomes like pulses on the time axis, and controlling the current of every time of each pulse so that an increment of every time of each pulse of the torque after the torque reaches a target approach torque TQN that is a first set value becomes smaller than that before it reaches the target approach torque TQN. | 01-15-2009 |
20090044960 | Method of removal of tool holder in a machine tool - A method of removing a tool holder having a protective sleeve and at least one locking element and configured for receiving an insertion tool in a machine tool having a fitting device, includes removing the protective sleeve of the tool holder, complete removal of the locking elements, and separation of the tool holder from the fitting device. | 02-19-2009 |
20090065223 | Sprag Tool for Torquing Pipe Connections - A pipe torquing sprag tool comprises one or more elastomeric sprags supported on a sprag support in an arrangement lying generally in a plane that is generally perpendicular to the axis of the rotatable sprag support. Each sprag has a solid, uninterrupted side and an interrupted side, and each sprag reacts to a lateral force in the general direction tangential to the surface of the sprag support and applied near the top of the sprag to bend the elastomeric sprag either toward the interrupted side to at least partially lean, fold or collapse, or towards the substantially uninterrupted side for being deformed to a generally compressed and non-compliant configuration for gripping. The sprag tool of the present invention may comprise a sprag support for positioning an external arrangement of sprags for being inserted into the bore of an add-on pipe segment. Alternately, the sprag tool of the present invention may comprise a sprag support for positioning an internal arrangement of sprags for being received over the end of an add-on pipe segment. | 03-12-2009 |
20090065224 | Rock drilling tool - The present invention relates to a rock drilling element for percussive drilling that is designed to reduce the stress usually developed on a thread joint when the shock wave transmits from a slender portion to a thicker part. The rock drilling element has an elongated body comprising a first portion and a second portion. The first portion has a female or male thread intended to be connected to a drill rod or a drill tube. The first portion has an outer diameter approximately equal to the major diameter of said thread. The second portion has a male or female thread intended to be connected to a drill bit or a guide tube. The second portion forms a guide portion for radial guiding in a hole being drilled. The length of the first portion is at least 500 mm, such that the thread joint is moved away from an unfavorable reflection area. Furthermore, the present invention relates to a drill string and a method of transferring impact energy in a drill string. | 03-12-2009 |
20090090525 | Rock breaking device, protection valve and a method of operating a rock breaking device - A hydraulic rock breaking device, a protection valve and a method of operating a hydraulic rock breaking device. The rock breaking device comprises a percussion device to which pressure fluid is fed along an inlet channel. The inlet channel is provided with a protection valve arranged to monitor the volume flow of pressure fluid flowing through it. If the flow is larger than what has been preset, the protection valve closes, at least partly, the connection through it, protecting thus the percussion device against too high an input power. The protection valve comprises a throttle which generates a pressure difference the magnitude of which is dependent on the fed volume flow. Information on the pressure difference is utilized in controlling the protection valve. | 04-09-2009 |
20090114409 | PNEUMATIC IMPACT TOOL - A pneumatic impact tool includes a housing, an accumulation chamber, and a piston. The housing defines a longitudinal passageway with a rear end and a front end and a passageway gas port. The accumulation chamber has a accumulation chamber gas port connectable to a gas supply and a inner gas port in fluid communication with the longitudinal passageway. The piston is inserted in the longitudinal passageway and slides between a rest position wherein the piston is juxtaposed to the rear end of the longitudinal passageway and an impact position wherein the piston is juxtaposed to the front end of the longitudinal passageway. The piston moves from the rest position to the impact position when gas is inserted in the longitudinal passageway through the passageway gas port and is propelled therebetween by pressurized gas contained in the accumulation chamber. | 05-07-2009 |
20090183887 | Power hand tool system with universal flexible shaft and method of operating - The invention provides a rotary tool system and method of operating. In one embodiment, a rotary tool system includes a rotary tool with a rotary motor, an output shaft operatively connected to the motor for transferring rotational force from the motor and a first coupler assembly, a flexible power transmission shaft including a first end portion with a second coupler assembly configured to removably couple with the first coupler assembly, a transfer shaft operatively coupled with the output shaft for receiving rotational force from the output shaft, and a third coupler assembly located at a second end portion of the flexible power transmission shaft and at least one implement, the at least one implement including a fourth coupler assembly configured to removably couple with the second coupler assembly and an input shaft operably connected to the transfer shaft for receiving rotational force from the transfer shaft. | 07-23-2009 |
20090188686 | Method for controlling percussion device, software production, and percussion device - A method and software product for controlling a percussion device belonging to a rock-drilling machine, and a percussion device. The impact frequency of the percussion device is set so that the percussion device forms a new compression stress wave to the tool always when reflected waves from the previous compression stress waves reach a first end of the tool. This requires that the impact frequency be set proportional to the propagation time of the stress wave, whereby the length of the used tool and the propagation velocity of the stress wave in the tool material are to be noted. | 07-30-2009 |
20090205848 | Powered driver and methods for reliable repeated securement of threaded connecters to a correct tightness - A powered driver and methods are disclosed, the driver including a head having a gapped jaw and housing a motor driven drive transfer assembly for operating a rotatable split socket engageable at a threaded connector. A reaction unit is movably maintained through the head, and a probe is associated with the reaction unit. The methods of this invention include setting a selected rotational limitation at the driver relating to fitting characteristics, operating the driver to cause relative rotation of a connector nut located in the socket and connector body engaged by the reaction unit. One of a plurality of operational modes for driver operations is selected and relative movement of the head and reaction unit are monitored during driver operation. The driver is controlled so that driver operation ceases when a selected combination of events related to operational mode selected and at least one of rotational limitation setting, monitored relative movement or driver operation occurs. | 08-20-2009 |
20090250233 | METHOD AND APPARATUS FOR DETERMINING WHEN A THREADED FASTENER HAS BEEN TIGHTENED TO A PREDETERMINED TIGHTNESS - Apparatus ( | 10-08-2009 |
20090255698 | METHOD AND APPARATUS FOR SELF-ALIGNING SWIVEL FOOT POWER FEED DRILL - A drilling apparatus contains a drilling tool and a platform. A flexible joint having three degrees of freedom connects the drilling tool to the platform. A clamping element may be provided proximate to an opening formed in the platform. The clamping element is attached to the platform and extends through an opening formed in the structure to fasten to the structure. | 10-15-2009 |
20090266568 | Method for Controlling Pressure Fluid Operated Percussion Device, and Percussion Device - The invention relates to a method for controlling a pressure fluid operated percussion device comprising a working chamber for pressure fluid and in the working chamber a transmission piston installed movably with respect thereto so as to enable a tool installed in the percussion device to be pressed against a material to be broken in order to generate a stress pulse, and to a percussion device. | 10-29-2009 |
20090266569 | Anti-Rotation Device for an Impact Tool - An anti-rotation device resists relative rotation between a shank and a tool head within which the shank is supported in an impact tool, for example a rivet gun. The anti-rotation device includes a first anchor portion arranged to grip the shank between the mounting end and the working end of the shank and a second anchor portion arranged to grip the tool head in which the first and second anchor portions are formed integrally with one another of resilient material. | 10-29-2009 |
20090308624 | Screw tightening axial force control method using impact wrench - Conventionally, as screw tightening axial force control, there is a control method such as a torque control method. The torque control method requires estimation of a torque coefficient, and has a problem that a calculated axial force value is an estimated value. An object of the present invention is to provide a method for directly controlling an axial force by calculating the axial force generated by an impact force by using an impact wrench. A 45-degree slant line is set from an origin O of orthogonal coordinate axes to be used for screw tightening axial force control, an impact progress point H | 12-17-2009 |
20090321098 | APPARATUS AND METHOD FOR BEARING A TOOL AGAINST A WORKPIECE - An apparatus for bearing a tool against a workpiece includes: (a) a pneumatically driven motor unit rotating a drive shaft substantially about a longitudinal drive axis; (b) a process shaft coupled with the drive shaft for rotating the tool substantially about a longitudinal process axis; (c) a flywheel coupled with one shaft of the drive shaft and the process shaft; and (d) at least one urging unit coupled with at least one of the motor unit and the process shaft. The urging unit moves the tool with respect to the workpiece. The flywheel and the one shaft impart inertial rotational energy to the tool after the pneumatic motor achieves a predetermined rotational speed. | 12-31-2009 |
20090321099 | PERCUSSION DEVICE, DRILLING MACHINE INCLUDING SUCH A PERCUSSION DEVICE AND METHOD FOR CONTROLLING SUCH A PERCUSSION DEVICE - A percussive device including, inside a machine housing ( | 12-31-2009 |
20090321100 | METHOD IN RESPECT OF A PERCUSSIVE DEVICE, PERCUSSIVE DEVICE AND ROCK DRILLING MACHINE - A method for controlling a fluid operated percussive device, which inside an axially extending cylinder room ( | 12-31-2009 |
20100012336 | Deep water pile driver - A pile driver is provided for use in deep water with a remotely operated vehicle (ROV) and a working ship for setting piles, pin piles and well conductors in subsea soil and for soil sampling in deep water and can be used for shallow water and land-based applications. A ram mass or hammer is received in an open frame and hydraulically reciprocated while in contact with water. A piston rod received in a piston cylinder is secured at one end to the hammer through a coupling mechanism, and an external source of hydraulic power is used with an on-board hydraulic circuit. Gas is compressed during an up-stroke to store energy, which is released during a down-stroke to push the hammer downwardly. The coupling mechanism provides a connection between the piston rod and the hammer that can move between an essentially rigid lift connection, an essentially rigid downward-push connection and an essentially non-rigid impact connection for preventing buckling of the piston rod when the hammer strikes at its lowermost point. One embodiment of the coupling mechanism includes a hollow body having opposing longitudinal slots, a rod slideably received in the hollow body that is pinned slideably at one end in the opposing slots and pinned fixedly at the other end to the hammer, with a spring in the hollow body providing a bias to push the rod toward the hammer. | 01-21-2010 |
20100018733 | PILE-DRIVING METHOD AND DEVICE - The present invention relates to a method for driving a support into a ground surface by means of a pile-driving device comprising a cylinder, an anvil for transmitting a striking motion to the support, which anvil closes the lower side of the cylinder at least substantially, a ram which is movable as a piston above the anvil within the cylinder, and an injection device for injecting fuel under pressure into a combustion chamber between the anvil and the ram, comprising the steps of: a) causing the ram to move downward, b) injecting fuel into the combustion chamber, c) causing the fuel to combust for generating an elevated pressure in the combustion chamber for driving the ram upward as a result of said elevated pressure after the ram has struck the anvil, wherein step c) is carried out in such a manner that said combustion occurs before the ram strikes the anvil. The present invention further relates to a pile-driving device comprising a cylinder, an anvil which anvil closes the lower side of the cylinder at least substantially, a ram which is capable of reciprocating movement for transmitting kinetic energy to the anvil, an injection device for injecting fuel under pressure into a combustion chamber defined by the cylinder wall, the anvil and the ram for driving the ram upward, and a detector for activating the injection device in dependence on the position of the ram, wherein the pile-driving device is provided with adjusting means for adjusting the moment of fuel injection and/or the amount of fuel to be injected. | 01-28-2010 |
20100032177 | Rock drilling method and rock drilling machine - A pulse drilling machine ( | 02-11-2010 |
20100032178 | PROCEDURE FOR OPERATING A MACHINE TOOL AND MACHINE TOOL FOR THIS PURPOSE - A machine tool, in particular in a handheld configuration, that is equipped with tools for a sensory detection of a trajectory that serves as a guideline and is detected in characteristic values and read in, alternatively to a programmed trajectory. The characteristic values that are on a side of the machine tool are converted into control signals for a working line that is tracked mark-free. | 02-11-2010 |
20100059240 | METHOD FOR TIGHTENING A SCREW CONNECTION AND SCREW DRIVING TOOL - Disclosed is a method for screwing in and tightening a screw connection ( | 03-11-2010 |
20100059241 | PILE-DRIVING DEVICE - The present invention relates to a combustion-type pile-driving device, comprising a cylinder having a closed upper end and an open lower end, which cylinder is freely movable as a piston with respect to an anvil which seals the lower end of the cylinder, a ram which is freely movable as a piston with respect to the cylinder and the anvil in the cylinder, and an injection device for injecting a fuel into a combustion chamber formed between the ram and the anvil in the cylinder for driving the ram upward by combustion of the injected fuel, wherein a second injection device is provided for injecting fuel into a second combustion chamber formed in the cylinder between the ram and the closed upper end of the cylinder for driving the ram downward and driving the cylinder upward by combustion of the injected fuel. The invention further relates to a method for using such a pile-driving device. | 03-11-2010 |
20100065293 | METHOD FOR OPERATING AN ELECTRICAL POWER TOOL, AND A DRIVE UNIT FOR AN ELECTRIC POWER TOOL - The invention relates to a method for operating a handheld electric power tool, having an electric motor that is drivable at a rated torque as the maximum allowable motor torque by the application of a maximum allowable motor current. The method includes the steps of manually furnishing a specification of a maximum torque, in which the maximum torque is within a setting range between a minimum set torque and the rated torque, operating the electric motor by applying a motor voltage which corresponds to an rpm desired by the user, and limiting the motor current to a current value that depends on the furnished specification of the maximum torque. | 03-18-2010 |
20100071920 | POWER TOOL - A power tool has a power head | 03-25-2010 |
20100089600 | CONTROLLING METHOD OF ELECTRIC TOOL AND ELECTRIC TOOL CARRYING OUT THE CONTROLLING METHOD - The invention relates to a power tool, which comprises a motor for driving a tool bit rotating, the motor attains a rotational speed, a source for supplying an electric current to said motor, a sensor for measuring said current, and a control device. The control device fulfills the task of detection of a variation of the slope of the current in the course of time, and generates a control signal. The rotational speed of the tool is reduced in response to the control signal. The present invention automatically detects whether the work piece operated by the tool bit reaches a predetermined position by providing electronic control means. It may make sure that the screw is driven into a piece of wood and does not go beyond the predetermined position once detect that the work piece reaches the position and carries out the changing action. | 04-15-2010 |
20100096150 | Three Dimensional (3D) Robotic Micro Electro Mechanical Systems (MEMS) Arm and System - A micro assembly having a substrate and an operating plane coupled to the substrate. The operating plane is movable from an in-plane position to an out-of-plane position. One or more electric connections provide electric power from the substrate to the operating plane in the out-of-plane position. A tool is coupled to the operating plane. The tool is operable to receive electric power from the operating plane to perform work. | 04-22-2010 |
20100108337 | COMPLIANT SHIFTING MECHANISM FOR RIGHT ANGLE DRILL - A compliant shifting mechanism can change the operation of a power tool between first and second operating conditions. The shifting mechanism can provide two distinct forces on a gear set during movement of the gear set between the two operating conditions. The shifting mechanism can provide a user with a tactile sensation of the completion of the transition between the two operating conditions without the gear set completing the full transition. A shifting mechanism can automatically complete the change between operating conditions, regardless of an alignment between the gear set and another component. The two distinct forces can be a torsional resistance force and a bending resistance force. | 05-06-2010 |
20100175902 | METHOD FOR ADJUSTING AN ELECTRIC POWER TOOL - The present invention relates to a method, with which an electric power tool is operated, which comprises a drive motor, a drive unit as well as a tool, the tool being operated by means of the drive unit and the drive motor. Said tool can be operated in at least two operating modes, said operating modes varying due to the properties of the drive motor and/or the drive unit. The setting of at least one of the two operating modes occurs automatically. The present invention furthermore relates to an electric power tool, which particularly can be operated with the one method according to the invention, having a drive motor, a drive unit as well as a tool, said tool being operable in at least two operating modes by means of the drive unit and the drive motor. The operating modes vary due to the properties of the drive motor and/or the drive unit. Said power tool comprises a detection means, with which the necessity for switching the operating mode can be ascertained and is characterized by further comprising a control means, with which one of the two operating modes can be automatically adjusted. | 07-15-2010 |
20100186975 | ELECTRIC TOOL HAVING COLD START FUNCTION - The effectiveness with which an electric tool having a rechargeable battery can be operated is dependant on the temperature prevailing in the electric tool. In order to increase the operation of the electric tool at low temperatures, a cold start function that can be activated is provided in the electric tool. | 07-29-2010 |
20100212922 | PRELOADED DROP HAMMER FOR DRIVING PILES - A drop hammer for driving a pile. The drop hammer of the present invention comprises a housing member, a ram member, a helmet member, and a lifting system. The housing member defines a housing chamber and a vent port defining a preload position. The ram member is supported for movement within the housing chamber. When the lifting system raises the ram member above the preload position, ambient air substantially freely flows into and out of the housing chamber through the vent port. When the ram member falls below the preload position, ambient air within a preload chamber portion of the housing chamber compresses to apply a preload force on the inner portion of the helmet member. When the ram member moves into the lower position, the ram member impacts the helmet member to force the helmet member from the rest position to the impact position, thereby driving the pile. | 08-26-2010 |
20100224380 | PNEUMATIC HAMMER MECHANISM AND CONTROL METHOD - A pneumatic hammer mechanism is disclosed. The hammer mechanism features: a flying mass, which is movable along an impact axis; an impact surface, which limits a movement of the flying mass along the impact axis in the impact direction; a hammer piston, which limits a movement of the flying mass along the impact axis opposite from the impact direction; a pneumatic chamber between the flying mass and hammer piston; a drive for periodically moving the hammer piston with a stroke along the impact axis, wherein the flying mass is excited to a periodic movement between the impact surface and hammer piston. The stroke is selected as a function of a maximum length of the pneumatic chamber such that the periodic movement of the flying mass on the path between an impact on the impact surface and a minimum approach of the hammer piston intermittently has a velocity of zero. | 09-09-2010 |
20100224381 | Mobile Self-Erecting Directional Drilling Rig Apparatus - An apparatus and method for horizontal drilling are provided. The apparatus has: (A) a thrust frame; (B) a carriage on the thrust frame; (C) a wheel truck, wherein a rearward portion of the thrust frame can be supported in a lowered position on the wheel truck; (D) a king pin for operatively connecting a forward portion of the thrust frame to a tractor; (E) a trailer-leg assembly that can be connected operatively between: (i) the forward portion of the thrust frame; and (ii) the ground; and wherein the trailer-leg assembly is capable of assisting in supporting the forward portion of the thrust frame: (a) in a raised position so a tractor can be connected for towing; and (b) in a lowered position where the forward portion of the thrust frame is in a lowered position adjacent the ground to assist in positioning the thrust frame in a position for drilling. | 09-09-2010 |
20100252287 | ELECTRIC POWER TOOL AND MOTOR CONTROL METHOD THEREOF - An electric power tool is provided with: a motor; a hydraulic pressure generator driven by the motor and configured to generate a plurality of impacts in one revolution thereof; an impact angle detector configured to detect an impact angle in one impact of the hydraulic pressure generator; an electric current detector configured to detect an electric current applied to the motor; a determination unit configured to determine an impact failure based on the impact angle and the electric current detected by the impact angle detector and the electric current detector; and a rotation controller configured to decrease a rotation speed of the motor when the determination unit determines the impact failure. | 10-07-2010 |
20100263890 | Impact wrench and control method for an impact wrench - A control method according for an impact wrench includes ascertaining whether the impact wrench applies an impact when the drive shaft rotates in a lower speed range. The speed of the drive shaft then is increased to a higher speed range as a function of an ascertained impact during the rotation in the lower speed range. | 10-21-2010 |
20100288519 | Method and device for rock drilling - A method for producing Shockwave pulses in a tool direction (R) of a pulse machine ( | 11-18-2010 |
20100288520 | SYSTEMS AND METHODS OF A POWER TOOL SYSTEM WITH INTERCHANGEABLE FUNCTIONAL ATTACHMENTS POWERED BY A DIRECT ROTATIONAL DRIVE - In embodiments of the present invention, a method and system of a power tool system may comprise mounting a functional module to a mounting plate of a power head, the power head configured to mount various functional modules, attaching the power head to a power base for powering the functional module, powering the functional module by directing power from the power base through a direct rotational drive of the power head, and controlling the multi-functional power tool system using a control disposed in the power base. | 11-18-2010 |
20100307782 | Electric Rotating Tool - A current detection circuit ( | 12-09-2010 |
20110000688 | ELECTRIC ROTATING TOOL, CONTROL METHOD, AND PROGRAM - Tightening torque is appropriately managed by a simple means. An electric rotating tool ( | 01-06-2011 |
20110011605 | MULTI DIRECTIONAL OSCILLATION FROM A ROTATIONAL SOURCE - The present invention provides multi-directional oscillation from a rotational source, by receiving a rotational motion, converting the rotational motion to a first oscillating motion, converting the first oscillating motion to a second oscillating motion that is normal to the first oscillating motion and transferring the first oscillating motion and the second oscillating motion to a working element. | 01-20-2011 |
20110024144 | VIBRATION DAMPENING SYSTEM FOR A POWER TOOL AND IN PARTICULAR FOR A POWERED HAMMER - The present invention relates to a method for controlling a power tool comprising a housing, an electric motor, a tool holder for supporting a tool bit and a conversion mechanism for converting the rotational movement of the output shaft of the motor into a reciprocating movement of the tool bit when being supporting in the tool holder, wherein oscillations of an element of the power tool are detected, wherein a quantity characterizing the oscillations is monitored and wherein the rotational speed of the electric motor is controlled such that the quantity does not exceed a preset value. | 02-03-2011 |
20110030980 | AUTOMATIC TRANSMISSION FOR A POWER TOOL - A transmission assembly for a power tool comprises a first transmission path comprising a high speed transmission path and a second transmission path comprising a low speed transmission path. Driven gears of each transmission path are permanently driven during operation of the transmission. A controller is provided for engaging or disengaging the high speed transmission path in response to monitored operating current of an electric motor providing a driving torque to an input of the transmission. When disengaged, a driven gear of the high speed transmission path continues to be driven, but the driven gear is disengaged from an output of the transmission. Consequently, under these circumstances, the low speed transmission path is the ‘active’ transmission path providing a low speed, high torque drive to the transmission output. A clutch enables the low speed transmission path to operate at a lower speed than an output of the transmission assembly when the high speed transmission path is engaged and is providing a high speed, low torque drive to the transmission output. | 02-10-2011 |
20110030981 | Method of operating a rotary tool - To provide a rotary tool driven by a brushless motor with which constant torque tightening work for screws or the like can always be performed properly and efficiently, in which overall downsizing and improved torque control precision enhancement can easily be achieved, and with which it is possible to eliminate occurrences of switch contact-induced sparking and wear and of the damage imparted to the peripheral electronic equipment and electronic circuitry as occurred in drive switches or torque detection mechanisms that use a conventional mechanical switch mechanism, so that the constituting parts are able to have a reduced size and an extended life. | 02-10-2011 |
20110067894 | COUNTERBALANCE FOR ECCENTRIC SHAFTS - A power tool includes a housing, a motor having a motor output shaft and located within the housing, the motor being configured to rotate the motor output shaft about a first axis, a drive component having (i) a body attached to the motor output shaft, and (ii) an output drive pin attached to the body, the output drive pin defining a second axis which is offset from the first axis, the body being caused to rotate about the first axis in response to rotation of the motor output shaft about the first axis, and the output drive pin being caused to be eccentrically driven in response to rotation of the body about the first axis, and further the body having a hub and a counterbalance arrangement attached to the hub, the counterbalance arrangement being positioned and configured to offset forces generated by the output drive pin when eccentrically driven, a linkage configured to oscillate in response to the output drive pin being eccentrically driven, and a tool mount configured to oscillate in response to oscillation of the linkage. | 03-24-2011 |
20110079406 | METHOD AND DEVICE FOR TIGHTENING JOINTS - An electric assembly device for tightening of fastener includes a housing and a rotation motor which is drivingly connected to an output shaft. The output shaft has a forward portion extending out of the housing, and is adapted to carry a coupling device for releasable coupling with a fastener during tightening, which is to be performed along a first rotation axis. The device is adapted to determine an angular displacement of the housing with respect to the first rotation axis during tightening of the fastener, and to control the rotation speed of the motor during tightening based on the determined angular displacement of the housing. | 04-07-2011 |
20110088921 | PNEUMATIC HAND TOOL ROTATIONAL SPEED CONTROL METHOD AND PORTABLE APPARATUS - The rotational speed of a pneumatic hand tool is adjusted in real time to maintain a selected speed level irrespective of exterior parameters affecting the performance of the tool. The apparatus is comprised of a rotational speed sensor installed directly on the tool, a digital microprocessor using control algorithms, and a valve to adjust the flow of air to the tool. | 04-21-2011 |
20110114344 | Apparatus and Methods for Controlling Hydraulically Powered Equipment - A hydraulic wrench is disclosed which may include a cylinder assembly disposed within a housing including first and second cylinders therein; first and second supply hoses, extending from a fluid supply, and carrying fluid therein; a swivel coupling the first and second hoses to the to the cylinder assembly; a first piston, within the first cylinder, coupled to the first hose and to a drive train, the first piston operable to transmit force through the drive train to transmit torque to a fastener to be driven by the wrench upon extending out of the first cylinder; and a second piston, within the second cylinder, coupled to the second hose and to the drive train, and operable, upon extending out of the second cylinder, to transmit force through the drive train to force the first piston into a retracted position. | 05-19-2011 |
20110114345 | HANDHELD POWER TOOL DEVICE - The invention is based on a handheld power tool device, having at least one safety mechanism, which intervenes in an uncontrolled blocking situation, and which has a sensor unit. It is proposed that the sensor unit is provided for directly detecting at least one orientation parameter of a handheld power tool. | 05-19-2011 |
20110139471 | METHOD FOR OPERATING A POWER TOOL HAVING A CLUTCH DEVICE - The invention relates to a method for operating power tool, particularly an electrically driven hand power tool, having at least one tool drive shaft for directly or indirectly rotationally driving a tool insert. The tool insert is received in a tool holder releasably connected to the tool drive shaft. The tool drive shaft can be coupled to a drive device via a clutch device. The clutch device is provided with at least two different limit torques, which are selectable by an operator. When the tool insert and/or the tool holder is changed out, the clutch device is reset to a lower limit torque of the at least two different limit torques, particularly the lowest possible limit torque. | 06-16-2011 |
20110139472 | METHOD OF MACHINING WITH TOOL UNIT - A method of machining includes using a tool unit for a handheld power tool having an oscillating output unit, a fastening element for attachment to the output unit, and a working edge transitioning into a lateral boundary line, being arc-shaped, and constituted by a circumference of a circle around whose circle point the fastening element is situated, situating at least one end of the working edge at an angle of substantially 90° in relation to a lateral boundary line on at least one side and constituting the working edge by a circumference section of a circle sector, situating each of two ends of the working edge at an angle in relation to a respective lateral boundary line extending in a radial direction, and in a vertical guide as the tool unit advances along the lateral boundary line situating a deepest point of an advancing motion is situated in a corner between the arc-shaped working edge and the lateral boundary line, and so that between a bottom of the guide and the lateral cut edge there is not any residual cross-section of the workpiece. | 06-16-2011 |
20110162858 | METHOD AND SYSTEM FOR THE TRACEABILITY OF A TOOL VIBRATORY CHARGE AND TOOL FOR USE WITH THE SYSTEM - The system is intended to block the tool operation for an operator holding a badge the authorized working time of which is over. The system comprises: the operator badge, comprising a storage memory for the working time carried out by the operator and a communication unit; the tool, comprising an accelerometric sensor and a housing for control and vibratory traceability comprising a communication module, arranged to exchange data with the operator badge and means for blocking the tool operation. For the vibratory charge traceability of the tool, in the tool, the accelerations experienced by the tool while operating and its corresponding working times, forming traceability data, are measured; the traceability data in the tool are saved; the traceability data are transmitted to an operator personal badge. | 07-07-2011 |
20110162859 | PILE DRIVING SYSTEMS AND METHODS EMPLOYING PRELOADED DROP HAMMER - A pile driving system for driving a pile. The pile driving system comprises a housing assembly, a hammer, a helmet member, and a lifting system. The housing assembly defining a drive axis and a plurality of vent openings. At least one vent opening is arranged at a first vent location along the drive axis, and at least one vent opening is arranged at a second vent location along the drive axis. The lifting system raises the hammer during each cycle. When the hammer drops and is above the first vent location, ambient air flows from the main chamber through the vent openings formed at the first and second vent locations. When the hammer drops and is below the first vent location and above the second vent location, ambient air flows from the main chamber through the vent openings formed at the second vent location. When the hammer drops and is below the second vent location, air within the main chamber is compressed to preload the helmet member prior to contact between the hammer and helmet member. | 07-07-2011 |
20110162860 | CONTROL METHOD FOR A HAND-OPERATED POWER TOOL AND POWER TOOL - A hand-operated rotary power tool and a method of operating the tool is disclosed. The tool has an electric motor for driving a rotary tool, a sensor device for detecting a blockade of the tool and a triggering device, which, in response to a blockade detected by the sensor device, reverses a direction of rotation of the electric motor prior to the blockade for a predetermined duration and immediately following induces the electric motor to again rotate in the direction of rotation. | 07-07-2011 |
20110168418 | METHOD FOR TIGHTENING BOLT CONNECTION BY ELONGATION OF BOLT - The present invention relates to a method for tightening a bolt connection through elongation of the bolt where strokes of a power element, especially a hydraulic cylinder, are converted into a rotational movement of a tightening tool. The method according to an embodiment of the present invention is carried out in at least two steps. As a first step, the bolt is first tightened to a predetermined snug torque. As a second step, the bolt is then tightened up through a predetermined number of complete strokes of the power element of the power wrench. In this way, a torque method is combined with a rotational angle method that is controlled by the number of strokes. | 07-14-2011 |
20110180284 | SAFETY MECHANISM FOR A ROTARY HAMMER - An improved method is provided for controlling a power tool having a rotary shaft. The method includes: disposing an inertial mass in a housing of the power tool, such that the inertial mass is freely rotatable about an axis of rotation which is axially aligned with the rotary shaft; monitoring rotational motion of the power tool in relation to the inertial mass during operation of the power tool; and activating a protective operation based on the rotational motion of the power tool in relation to the inertial mass. | 07-28-2011 |
20110203819 | Power tool and torque adjustment method for the same - A power tool includes a detecting member mounted in an output end of a housing, and a to-be-detected member mounted in a driver. When the driver is assembled with the output end of the housing, the detecting member will detect the to-be-detected member and transmit a signal to a torque adjustment unit disposed in the housing so as to enable the torque adjustment unit to automatically adjust the torque applied to the driver to reach a predetermined value, thereby preventing damage to the driver. | 08-25-2011 |
20110203820 | TRACK GUIDING SYSTEM - A track guiding system includes a track comprising a linear beam and a linear plate operatively coupled to the linear beam. The linear plate has opposing first and second surfaces separated by a first distance and opposing first and second edges separated by a second distance. A first compound edge roller and a second compound edge roller are disposed adjacent to the first and second edges of the linear plate, respectively, for travel along the first and second edges of the linear plate. Each of the first and second compound edge rollers include a first roller element adjacent to the first surface of the linear plate and a second roller element adjacent to the second surface of the linear plate. A carriage is coupled to the first and second compound edge rollers. | 08-25-2011 |
20110203821 | POWER SCREWDRIVER HAVING ROTARY INPUT CONTROL - A power tool includes an output shaft configured to rotate about a longitudinal axis, a motor drivably connected to the output shaft to impart rotary motions thereto, and a rotational motion sensor spatially separated from the output shaft and operable to determine the user-imparted rotational motion of the power tool with respect to the longitudinal axis. A controller is electrically connected to the rotational motion sensor and the motor. The controller determines angular velocity of the power tool about the axis, rotational displacement of the power tool about the axis, and/or a direction of the rotational displacement using input from the rotational motion sensor. The controller then controls the motor according to the angular velocity, the rotational displacement, and/or the direction of the rotational displacement. | 08-25-2011 |
20110220376 | METHOD FOR TIGHTENING AND LOOSENING THREADED CONNECTORS - A method of tightening and loosening threaded connectors in an object includes threadingly connecting a nut with a bolt introduced in the object with interposition of a washer between the nut and the object, turning the nut by a tool to tighten or loosen the bolt in the object with interposition of the washer, forming the washer with an outer body having a radially inner opening larger than a diameter of the bolt and radially outer surface adapted to absorb a reaction force of the tool, optionally also with a radially inner segment engageable with a thread of the bolt and connectable to the radially outer body with a limited axial frictional movement relative to the outer body, and optionally also with a spacer locatable between the radially inner segment and the nut, interposing only said radially outer body of the washer between the nut and the object for regular applications, optionally interposing the radially outer body and the radially inner segment together between the nut and object for applications when even and accurate bolt elongation is necessary, and optionally interposing the radially outer body, the radially inner segment, and the spacer between the nut and the object for applications when a precise bolt load is needed and a bolt elongation must be controlled. | 09-15-2011 |
20110226498 | OIL LUBRICANT - An air tool or air motor lubricant for adding to compressed air, and the method of operating air tools with the lubricant, in which the lubricant comprises a mixture of a polyalphaolefin or polyalphaolefin blend having a viscosity in the range of 2 to 3000 cSt and a high molecular weight complex ester in a ratio of 1.3:1 to 20:1 of the polyalphaolefin or polyalphaolefin blend to the high molecular weight complex ester. The lubricant comprises about 58 to 90 vol % polyalphaolefin or polyalphaolefin blend and about 10 to 42 vol % high molecular weight complex ester. The mixture of polyalphaolefin or polyalphaolefin blend and high molecular weight complex ester is added in an amount in the air of about 0.2 to 0.6 ppm effective to generate a lubricant airborne mist concentration in exhaust air of 0.2 ppm or less. | 09-22-2011 |
20110253400 | GROUND WORKING DEVICE - The invention relates to a ground working device comprising a carrier implement, a mast that forms a mast sequence and has a lower mast part, which is linked to the carrier implement, an upper mast part and at least one mast extension piece, whereby for the purpose of increasing the mast length the mast extension piece can be inserted into the mast sequence between lower mast part and upper mast part and whereby for the purpose of reducing the mast length the mast extension piece can be released from the upper mast part and the lower mast part and removed from the mast sequence, and, with the mast extension piece removed, the upper mast part can be fixed directly on the lower mast part, a work sledge which is guided in a displaceable manner along the mast, and at least one feed rope for displacing the work sledge, which runs at least in some areas longitudinally of the mast. The ground working device according to the invention is characterized in that a reel for receiving slack rope is provided that develops on the feed rope when the mast extension piece is removed from the mast sequence and the upper mast part is fixed directly on the lower mast part. The invention also relates to a method for operating a ground working device of such type. | 10-20-2011 |
20110303427 | ELECTRIC TOOL AND CONTROLLING METHOD THEREOF - A power tool including a motor for rotatably driving a tool bit at an attained rotational speed, a source for supplying an electric current to the motor, a sensor for measuring the current, and a control device. The control component fulfils the task of detecting a variation of the slope of the current in the course of time, and generates a control signal. The rotational speed of the tool is reduced in response to the control signal. The power tool automatically detects whether the work piece operated by the tool bit reaches a predetermined position by electronic control means. It may make sure that the screw is driven into a piece of wood and does not go beyond the predetermined position once it detects that the work piece reaches the position and carries out a changing action. | 12-15-2011 |
20110303428 | BOLT-FIRING DEVICE THAT CAN BE OPERATED ELECTRICALLY AND METHOD FOR OPERATING THE BOLT-FIRING DEVICE - The invention relates to a bolt-firing device that can be operated electrically and that assumes different device states during operation. | 12-15-2011 |
20110308827 | Power Screwdriver - A power screwdriver is disclosed, having a drive for driving a tool spindle having a controller for controlling the drive, having a monitoring device for monitoring the rotation speed or the torque, and having a monitoring device for monitoring a switch-off criterion, which monitoring device is coupled to the controller, in order to switch off the drive when the switch-off criterion is reached, with the controller being programmed such that (a) the drive is first of all accelerated until the rotation speed has reached a specific first rotation speed; (b) if the rotation speed then falls by at least a specific amount within a specific time increment, or the torque rises by at least a specific amount within a specific time increment, the drive is braked until the rotation speed has reached a specific second rotation speed, which is lower than the first rotation speed; (c) the drive is then regulated at the second rotation speed for a specific time; and (d) after step (c), the drive is accelerated again at most until the rotation speed reaches the first rotation speed. | 12-22-2011 |
20110315413 | Kit-Of Parts for Multi-Functional Tool, Drive Unit, and Operating Members - A multi-functional tool is provided including a drive unit and one or more operating members. Each operating member includes a plurality of coupling features configured to be coupled with a plurality of drive unit coupling features. The interaction between the drive unit coupling features and the coupling features of the operating member determines the type of planar motion in which the operating member moves relative to the drive unit when the multi-functional tool is in operation. This motion may be orbital, sagittal, or reciprocal. The motion provided by the drive unit to an operating member may be changed by replacing one operating member coupled to the drive unit with another, different operating member. In some exemplary embodiments, at least three operating member are provided and each operating member is configured to be moved with one of orbital, sagittal, or reciprocal motion. | 12-29-2011 |
20110315414 | Screwdriver and control method - A control method for a screw including the following steps: a spindle ( | 12-29-2011 |
20120000682 | HAND-HELD POWER TOOL - A hand-held power tool such as a drill, a nail gun, a hand-operated drive-in tool or a bolt setting tool, is disclosed. In order to further improve the operation of hand-held power tools, the hand-held power tool includes an electronic sensor device for detecting the position and/or a change in position of the hand-held power tool in the space. | 01-05-2012 |
20120111589 | Hand-held power tool with an anti-theft device - A control method for a hand-held power tool, in response to the actuation of a main switch of the hand-held power tool, carries out the following steps. An identification of transponders in the vicinity of the hand-held power tool is requested in that a transmitter transmits a radio signal. The identification of the at least one responding transponder is received by a receiver. The received identifications are compared to one or more identifications that are stored in a memory unit. The hand-held power tool is switched on if at least one of the identifications stored in the memory unit matches at least one of the received identifications. | 05-10-2012 |
20120152576 | EXTRA AREA DOWN-HOLE HAMMER APPARATUS AND METHOD - Provided is an actuator and method for operating an actuator. For example, the actuator may have first and second operating phases, a housing having an opening receiving pressure, a piston inside the housing for moving along inside the housing and positioned therein for creating a first chamber between one end of the piston and the housing and a second chamber between the other end of the piston and the housing, first and second ports each capable of communicating with the pressure source during a different one of the first and second phases, an extra area chamber between the piston and the housing. In the first phase the first port may be communicating with the opening for providing pressure to the first and extra area chambers. In the second phase the second port may be communicating with the opening for providing pressure to the second chamber. | 06-21-2012 |
20120152577 | HAND TOOL IMPACTING APPARATUS AND METHOD - A hand tool impacting device may include, a drive shaft with an aperture, an impaler disk, and a floating pin positioned within the aperture of the drive shaft. A set of circular ramps on the outer edge of the impaler disk may interact with a stationary pin insert to translate the drive shaft and create an impacting motion. A pair of springs placed against either side of the floating pin may allow a specialized tool bit to engage or disengage the impaler disk, thereby allowing selective use of translational impacting motion, or rotational torque. An impact bit for engaging the impaler disk may include, a tool head configured to engage a work piece and a tool shaft configured to be inserted into a hollow drive shaft to engage a floating pin. According to one embodiment, the impact bit includes a number of sleeves to guide the tool head during operation. | 06-21-2012 |
20120160528 | Pressure protection valve for hydraulic tool - A pressure protection valve is provided which provides a fluid short circuit between a fluid pressure inlet of a hydraulic tool such as a hydraulic hammer and a low pressure region when the pressure at the fluid pressure inlet exceeds a first trigger pressure equal to a predetermined permissible pressure. This prevents damage to the hydraulic tool which can arise through operation at excessive fluid flow or pressure from hydraulic fluid supplied by a carrier vehicle. The pressure protection valve may maintain fluid communication between the fluid pressure inlet and the low pressure region until the pressure at the fluid pressure inlet reduces to a pressure below a predetermined second trigger pressure which is less than the first trigger pressure, to prevent further operation of the tool until the flow of fluid to the fluid pressure inlet has been stopped by an operator. | 06-28-2012 |
20120160529 | POWER SCREWDRIVER HAVING ROTARY INPUT CONTROL - An improved method is provided for operating a power tool. The method includes: monitoring rotational motion of the power tool about an axis using a rotational motion sensor disposed in the power tool; determining a direction of the rotational motion about the axis; and driving the output member in a direction defined by the detected rotational motion of the tool, where the output member is driven by a motor residing in the power tool. Thus, the output member is drive clockwise when the rotational motion of the tool is clockwise about the axis and the output member is drive counter-clockwise when the rotational motion of the tool is counter-clockwise about the axis. | 06-28-2012 |
20120168188 | Portable Tool and Method for Carrying Out Work Operations with Said Tool - A portable tool, in particular a screwing tool, has a tool head for processing a workpiece, has a drive device for driving the tool head, and has a control device for controlling the drive device, at least one work parameter of the drive device being variable. The tool has a signal detecting device, at least temporarily connected to the control device for signaling purposes, for wireless reception of signals, these signals being characteristic of at least the at least one work parameter, and the control device being fashioned in such a way that it defines the at least one work parameter in reaction to a signal detected by the signal detecting device. | 07-05-2012 |
20120168189 | Rechargeable Battery-Operated Screwing System with a Reduced Volume of Radio-Transmitted Data - The disclosure relates to a method for using a rechargeable battery-operated screwing system which is suitable for establishing screw connections by means of a motor-driven working spindle. The rechargeable battery-operated screwing system having communication devices for wirelessly transmitting data for defining screwing curves, which describe a screwing process, between a screwing spindle module and an evaluation module, with at least two variables which are characteristic of the screwing curve being wirelessly transmitted by means of the communication devices and at least one further variable which is relevant for the screwing curve being calculated from the transmitted data by the evaluation module. | 07-05-2012 |
20120193111 | SYSTEMS AND METHODS FOR PROVIDING A STAKE DRIVER ATTACHMENT APPARATUS - The invention relates to systems and methods for providing a stake driver attachment apparatus having a planar surface that facilitates driving a stake into a penetrable medium adjacent and substantially parallel to a stationary object or surface. | 08-02-2012 |
20120193112 | METHOD FOR CONTROLLING THE LIMITING OF THE ROTATIONAL SPEED OF A COMBUSTION ENGINE - A method controls the rotational speed limiting of an engine in a handheld work apparatus. The crankshaft of the engine drives a worktool via a clutch which engages in dependence on the motor rotational speed. Above an engaging speed of the clutch, a drive connection with the crankshaft is made and below the engaging speed, the drive connection is interrupted. A speed control unit monitors the rotational speed of the engine and includes a rotational speed lock circuit which limits the speed to a limit below the engaging speed. During the start of the engine, the lock circuit is switched on; it is switched off after the engine has been taken into operation when a deactivation signal is present, wherein the deactivation signal is generated when an operation change signal of the work apparatus is detected. | 08-02-2012 |
20120193113 | AUTOMATIC TRANSMISSION FOR A POWER TOOL - A transmission assembly for a power tool includes a first transmission path comprising a high speed transmission path, a second transmission path comprising a low speed transmission path, a controller for one of engaging and disengaging the high speed transmission path, and a clutch for enabling the low speed transmission path to operate at a lower speed than an output of the transmission assembly when the high speed transmission path is engaged. | 08-02-2012 |
20120222876 | INSTALLATION METHOD FOR AN EXPANSION ANCHOR AND IMPACT SCREWDRIVER FOR INSTALLING AN EXPANSION ANCHOR - An installation method for an expansion anchor is carried out by repeatedly exerting rotary-percussive strikes onto the shank ( | 09-06-2012 |
20120227994 | CORDLESS TOOL SYSTEM - A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. The ratio of the discharging time to the charging time is approximately 25:35. | 09-13-2012 |
20120247796 | CONTROL METHOD AND HAND-HELD POWER TOOL - The hand-held power tool has a tool socket to hold a tool. A motor is coupled to the tool socket in order to drive the tool socket. The motor is arranged in a housing. The housing has a holder that is provided with a mechanical lock for detachably coupling a battery pack, and with a power connection for electrically connecting the battery pack to the motor. A communication interface serves to transmit properties of the battery pack to a motor control unit. The motor control unit includes a soft start that accelerates the speed of the motor from a standstill to a target speed at a given rate, whereby the motor control unit controls the rate as a function of a property of the battery pack transmitted by the battery pack. | 10-04-2012 |
20120255749 | ROTARY IMPACT DEVICE - The present invention provides methods and systems for a rotary impact device having an annular exterior surface for use with an impact wrench for providing torque to a fastener. The rotary impact device includes an input member having an input recess for receiving the anvil of the impact wrench, an output member having an output recess for receiving the fastener, and an inertia member. The inertia member is stationary and positioned on the exterior surface of the rotary impact device for increasing the torque applied to the fastener. | 10-11-2012 |
20120273242 | TRIGGER PROFILE FOR A POWER TOOL - An improved method is provided for operating a power tool. The method includes receiving an input control variable from an input unit; determining a derivative of the input control variable; selecting one of a plurality of control profiles based on the control input variable and the derivative, each control profile correlating the control input variable of the input unit to a rotational speed at which to drive the output shaft; and driving the output shaft at a rotational speed in accordance with the selected control profile. | 11-01-2012 |
20120292061 | FASTENER-SETTING TOOL AND METHOD FOR OPERATING A FASTENER-SETTING TOOL - The invention relates to a fastener-setting tool with a combustion chamber ( | 11-22-2012 |
20120292062 | SYSTEMS AND METHODS FOR CONTROLLING DIESEL HAMMERS - A diesel hammer comprises a housing, an anvil, and a release valve. A combustion chamber is formed within the housing below the anvil. The release valve operates in a closed configuration in which fluid is substantially prevented from flowing out of the combustion chamber and an open configuration in which fluid is allowed to flow out of the combustion chamber through the release valve. The diesel hammer operates in a cycle mode in which the release valve is in the closed configuration and, when the anvil moves from an upper position to a lower position, the anvil compresses fluids within the combustion chamber and an interrupt mode in which the release valve is in the open configuration and, when the anvil moves from the upper position to the lower position, the anvil does not substantially compress the fluids within the combustion chamber. | 11-22-2012 |
20120298389 | Preloaded Drop Hammer For Driving Piles - A drop hammer for driving a pile comprising a ram member supported within a housing chamber for movement relative to the housing member between the lower position and the upper position and a lifting system for moving the ram member from the lower position to the upper position. When the lifting system raises the ram member above a preload position, ambient air substantially freely flows into and out of the housing chamber through a vent port. When the ram member falls below the preload position, fluid is prevented from flowing through the vent port such that ambient air within a preload chamber portion of the housing chamber compresses to create a preload force that is transmitted to the pile. When the ram member moves into the lower position, an impact force generated by the ram member is transmitted to the pile. | 11-29-2012 |
20120312570 | HAND-HELD POWER TOOL - A hand-held power tool, in particular to a screwing device, includes a control device for controlling and/or regulating the tool movement of a tool holder and/or of a tool. The hand-held power tool has an interface for communicating with an external adjustment device. The interface is configured to be connected to the control device in such a way that signals may be transmitted for the parameterization of at least one tool movement sequence. The tool movement sequence includes a plurality of sequentially-progressing tool movements. A method for parameterizing at least one tool movement sequence of a hand-held power tool includes parameterizing the at least one tool movement sequence with a separate setting device in a remote-controlled manner via an interface of the hand-held power. | 12-13-2012 |
20120318544 | ROTATION SPEED CONTROL DEVICE FOR AIR TOOLS AND ROTATION SPEED CONTROL METHOD THEREOF - A rotation speed control device for air tools and the method thereof are disclosed. A shell base is disposed with a forward air inlet and a reverse air inlet. A back cover is connected to one side of the shell base. The back cover has a forward flow path in communications with the forward air inlet and a reverse flow path in communications with the reverse air inlet. The forward flow path has a rotation space whose one side has a pressure release hole in communications with the ambient space. A rotation speed control element having a stopping part that can close the pressure release hole is disposed in the rotation speed. The rotation speed control element rotates to control the aperture size of the pressure release hole, thereby adjusting the airflow entering the forward flow path. | 12-20-2012 |
20120318545 | Hand-Held Power Tool - A power-operated hand-held power tool, in particular a power tool comprising an oscillation drive for driving a tool in an oscillating manner, comprising at least one sensor for detecting vibrations and comprising a controller which is coupled to the at least one sensor to control at least one operating parameter of the The power tool according to an output signal of the at least one sensor, the The power tool being configured to receive different tools, and the controller being configured to evaluate the output signal of the at least one sensor and preferably to compare it with stored characteristic values for the vibrations of different tools so as to control at least one operating parameter of the The power tool according to said comparison, is specified. | 12-20-2012 |
20130000933 | Method and apparatus for adapting an output of a drive unit to accommodate a changing load in a cyclic action upon material - A drive unit has an output subject to changing loads, where the drive unit consists of fixed and moving parts connected to a power source. The output of the drive unit is controlled in cycles, and for ascertaining the load in a given cycle, the time period required for changing the position of the moving part of the drive unit, or for changing the position of the moving part of the equipment in mechanical contact with the moving part of the drive unit, from one predefined position to another predefined position is measured, whereby the input required in the next cycle is determined according to the time period ascertained in at least one preceding cycle. Where the drive unit is an electric motor, the input required in given cycle is also determined according to electric resistance of the electric motor ascertained in at least one preceding cycle. | 01-03-2013 |
20130008676 | Trigger Profile For A Power Tool - An improved method is provided for operating a power tool. The method includes receiving an input control variable from an input unit; determining a derivative of the input control variable; selecting one of a plurality of control profiles based on the control input variable and the derivative, each control profile correlating the control input variable of the input unit to a rotational speed at which to drive the output shaft; and driving the output shaft at a rotational speed in accordance with the selected control profile. | 01-10-2013 |
20130032368 | POWER TOOL AND OPERATION METHOD FOR THE POWER TOOL - A power tool, including: a housing, a motor, arranged in the housing and outputting rotary force, a connecting shaft, adapted to one of a plurality of tool bits, a transmission mechanism, arranged between the motor and the connecting shaft and transmitting the rotary force from the motor to the connecting shaft, a cartridge, the cartridge includes a tool chamber for receiving the plurality of tool bits, the connecting shaft being capable of moving axially between a working position wherein the connecting shaft is adapted to the tool bits and a release position wherein the connecting shaft is separated from one of the plurality of tool bits, and a restricting member, the restricting member operable to move between two positions; at a first position, the restricting member limits the movement of the connecting shaft; and at a second position, the restricting member allows the connecting shaft to move. | 02-07-2013 |
20130037288 | Control Scheme For Detecting And Preventing Torque Conditions In A Power Tool - A control scheme is provided for a power tool having a rotary shaft. The control scheme includes: monitoring rotational motion of the tool generally about a longitudinal axis of the shaft; detecting a condition of the tool based on the rotational motion of the tool; and controlling torque imparted to the shaft upon detecting the tool condition, where the torque is inversely related to an angular displacement of the tool about the longitudinal axis of the shaft. | 02-14-2013 |
20130062086 | POWER TOOL - The present invention provides a power tool for tightening a fastener. The power tool includes a motor, a hammer, an anvil, and a control unit. The hammer is intermittently or continuously rotatable in a forward direction by the motor. The anvil is impacted by the hammer rotated in the forward direction. The control unit controls the hammer to continuously rotate at a first number of rotations, and to intermittently rotate at a second number of rotations lower than the first number of rotations when a prescribed time has elapsed from the rotation of the hammer at the first number of rotations, and then to intermittently rotate at a third number of rotations lower than the second number of rotations when a predetermined time has elapsed from the rotation of the hammer at the second number of rotations. | 03-14-2013 |
20130068490 | TWO PIPE HORIZONTAL DIRECTIONAL DRILLING SYSTEM - The present disclosure provides a drill drive unit and drill string make up and break up unit with a method for use with a dual pipe drill string configuration. The drill drive unit is mounted to a single carriage and includes an outer drive spindle in a position fixed to the carriage with inner drive spindle configured to rotate independent of the outer drive spindle while being able to move longitudinally at least 12 inches relative to the outer drive spindle. The method involves connecting and disconnecting inner shafts and outer shafts of the dual pipe drill string. | 03-21-2013 |
20130075119 | STRENGTHENING BY MACHINING - A machining method comprises selecting a finished surface dimension and a material property for a working surface, defining a working temperature range based on the selected material property, and defining a machining power based on the working temperature range. The machining power depends on a removal rate and a specific heat of the working surface. The working surface is machined at the removal rate to achieve the finished surface dimension, and the machine power is controlled to maintain the working surface within the working temperature range. The working surface is heated or cooled from the working temperature range to a transition temperature range, such that the selected material property is preserved in the working surface. | 03-28-2013 |
20130075120 | IMPACT TOOL FOR A HAMMER DEVICE AND METHOD FOR OPENING A TAPPING OPENING - Impact tool and method for a hammer device that includes impact tool housing and tubular piston structured and arranged for axial displacement in impact tool housing via pressure medium. Tubular piston has essentially radial pressure surfaces structured and arranged on opposite portions of tubular piston to be acted on with pressure medium. Grooves are formed in impact tool housing that are structured and arranged for a reversal of a direction of a pressure medium impingement on pressure surfaces and discharge or recirculation of medium. Grooves include a control recess formed in tubular piston and at least two control grooves for a shift of pressure medium impingement on pressure surfaces that are arranged axially offset in impact tool housing. A controller is structured and arranged to alternatively activate one of the at least two control grooves via connection channels. | 03-28-2013 |
20130105186 | POWER TOOL | 05-02-2013 |
20130118766 | AIR HAMMER TOOL, AND METHOD OF ADJUSTING IMPACT FORCE OF THE AIR HAMMER TOOL - [Problem to be Solved] To provide an air hammer tool which largely reduces transmission of vibration to a worker, has a simple and light-weight structure, can he manufactured at a low cost, and can be easily maintained. | 05-16-2013 |
20130126197 | Reversible Drive Socket or Bit Holder With One-Way Clutch Mechanism - A finger operable, reverse drive holder tool includes an annular knob or handle with a one-way clutch axially retained within the handle and capable of removably receiving a selected holder having a uniform or standard sized body which is insertable into the one-way clutch and may be easily removed and reversed by insertion into the opposite side of the one-way clutch. | 05-23-2013 |
20130140049 | POWER TOOL HAVING ROTARY INPUT CONTROL - An improved method is provided for operating a power tool. The method includes: monitoring rotational motion of the power tool about an axis using a rotational motion sensor disposed in the power tool; determining a direction of the rotational motion about the axis; and driving the output member in a direction defined by the detected rotational motion of the tool, where the output member is driven by a motor residing in the power tool. Thus, the output member is drive clockwise when the rotational motion of the tool is clockwise about the axis and the output member is drive counter-clockwise when the rotational motion of the tool is counter-clockwise about the axis. | 06-06-2013 |
20130140050 | POWER TOOL HAVING ROTARY INPUT CONTROL - A power tool has a housing, an output member coupled to the housing, and a motor, rotational motion sensor, timer, and control circuit in the housing. The timer is initiated, and the rotational motion sensor monitors rotational motion of the housing about an axis. The control circuit determines the direction of the rotational motion of the housing, whether the direction is different from a previous direction of rotational motion of the housing, and whether a value for the timer exceeds a predetermined threshold. If the direction is different from the previous direction and the timer value is less than the predetermined threshold, the control circuit initiates a protective action for the power tool. The control circuit also drives the motor to cause the output member to rotate in a direction that corresponds to the detected rotational motion of the housing. | 06-06-2013 |
20130153250 | Tool - A storage-battery-operated screwing tool is controlled by means of an external USB/Bluetooth keyboard. | 06-20-2013 |
20130153251 | FASTENER DRIVING TOOL USING A GAS SPRING - A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time. | 06-20-2013 |
20130153252 | IMPACT TIGHTENING TOOL - An impact wrench which includes an air motor and a main shaft that is rotated by pulsed impact torque that is converted from rotary torque from the air motor to tighten a bolt, is provided with a torque sensor that detects a tightening torque on the bolt, and a controller that performs control functions to tighten the bolt, and the controller changes the rotational speed of the air motor to tighten up the bolt when the tightening torque that is detected by the torque sensor becomes equal to or higher than a prescribed value. | 06-20-2013 |
20130161038 | ANCHOR DRIVER - A wedge anchor driver comprising: a first member having a first opening configured to fit onto the nut of a wedge anchor and a second opening configured to receive a predetermined length of the outer end of the wedge anchor's bolt; and a second member associated with the first member, wherein the second member's distal end is configured to fit, and be lockable, into the chuck of a hammer drill, such that, after the wedge anchor driver is locked into the chuck of the hammer drill, a user can drive the wedge anchor into a corresponding hole with the hammer drill in hammer mode and then tighten the nut of the wedge anchor by switching the hammer drill from hammer mode to drill mode. | 06-27-2013 |
20130168117 | BATTERING RAM - A battering apparatus including a battering element, an air source, a sensing device, a triggering mechanism, and a battering element release mechanism. Engagement of the sensing device activates the triggering mechanism which in turn activated the battering element release mechanism. The battering element is then released, and driven by air from the air source, moved to its extended position, causing the battering head of the battering element to engage an item to be broken. | 07-04-2013 |
20130175065 | FASTENING DEVICE AND FASTENING METHOD - A fastening device includes first to third rotary sensors (position detecting unit) which are provided in a support arm and detect a position of a nut runner (fastening tool), and a main controller (controlling unit) which has a storage unit for storing a plurality of fastening positions of a chain cover, and drives the nut runner when a detection result from the first to third rotary sensors coincides with position information of the fastening position of the chain cover stored by the storage unit. Therefore, during a fastening work, an operator does not need to pull a trigger to drive and rotate the nut runner, thus reducing a burden on the operator during the fastening work. | 07-11-2013 |
20130186659 | TRIGGER PROFILE FOR A POWER TOOL - An improved method is provided for operating a power tool. The method includes receiving an input control variable from an input unit; receiving at least one tool parameter relating to the power tool; determining a derivative of the input control variable; selecting one of a plurality of control profiles based on the control input variable, the derivative of the input control variable, and the tool parameter, each control profile correlating the control input variable of the input unit to a rotational speed at which to drive the output shaft; and driving the output shaft at a rotational speed in accordance with the selected control profile. | 07-25-2013 |
20130186660 | TRIGGER PROFILE FOR A POWER TOOL - An improved method is provided for operating a power tool. The method includes receiving an input control variable from an input unit; determining a second derivative of the input control variable; selecting one of a plurality of control profiles based on the control input variable and the second derivative, each control profile correlating the control input variable of the input unit to a rotational speed at which to drive the output shaft; and driving the output shaft at a rotational speed in accordance with the selected control profile. | 07-25-2013 |
20130192858 | TRANSPORTABLE SCREWING TOOL WITH INTEGRATED SWITCHING ELEMENT - A transportable screwing tool configured to mount and/or dismount screws into and/or out of a work piece includes an electric motor operable by electrical energy and a switching element configured to activate and/or deactivate the electric motor. The screwing tool further includes a drive train arranged inside a housing of the screwing tool. The drive train is mounted pivotably about an axis of rotation arranged essentially perpendicularly to the drive train. A method for activating and/or deactivating the electric motor includes moving at least one element of the switching element for the purpose of activating the electric motor out of a position of nonuse into a position of use when the drive train is moved in rotation about the axis of rotation. | 08-01-2013 |
20130199809 | ASSEMBLY DEVICE AND ASSEMBLY METHOD - The invention relates to an assembly device ( | 08-08-2013 |
20130213677 | Surface-mediated cell-driven power tools and methods of operating same - A portable power tool comprises an electric motor, actuator, or light-emitting hardware and a rechargeable power source connected to the electric motor, actuator, or light-emitting hardware, wherein the power source contains at least a surface-mediated cell (SMC). The power tools include, but are not limited to, impact driver, air compressor, alligator shear, angle grinder, band saw, belt sander, biscuit joiner, ceramic tile cutter tile saw, chainsaw, circular saw, concrete saw, cold saw, crusher, diamond blade, diamond tools, disc sander, drill, floor sander, grinding machine, heat gun, impact wrench, jackhammer, jointer, jigsaw, lathe, miter saw, nail gun, needle scaler, torque wrench, powder-actuated tools, power wrench, radial arm saw, random orbital sander, reciprocating saw, rotary reciprocating saw, rotary tool, sabre saw, sander, scroll saw, steel cut off saw, table saw, thickness planer, trimmer, wall chaser, wood router, or flashlight. | 08-22-2013 |
20130228353 | TORSION-ADJUSTABLE IMPACT WRENCH - A torsion-adjustable impact wrench, includes a housing, a powering unit including an impact mechanism configured to generate an intermittently increasing torque, an adjusting unit configured to manually set a first torsion value and generate a corresponding a first torsion signal, a detecting unit configured to detect a rotational speed of the powering unit and generate a corresponding first rotational speed signal, and a control unit configured to generate a control signal for controlling the output of the rotational speed of the powering unit. The control unit generates a second rotational speed signal according to the first torsion signal outputted by the adjusting unit, compares the first rotational speed signal with the second rotational speed signal, and generates a control signal enabling the rotational speed of the powering unit to approach the second rotational speed. | 09-05-2013 |
20130240227 | METHOD FOR OPERATING A MACHINE TOOL, PROJECTION DEVICE FOR A MACHINE TOOL AND MACHINE TOOL WITH SUCH A PROJECTION DEVICE - A method for operating a machine tool is disclosed wherein during operation of the machine tool at least one state of the machine tool is projected into a working area of the machine tool with a 3D projector at a predefined point in space in the working area. A projection device performing the method and a machine tool with such a projection device is also disclosed. | 09-19-2013 |
20130269961 | ELECTRONIC CLUTCH FOR POWER TOOL - A method is presented for controlling operation of a power tool having an electric motor drivably coupled to an output spindle. The method includes: receiving an input indicative of a clutch setting for an electronic clutch, where the clutch setting is selectable from a plurality of driver modes; setting the value of a maximum current threshold in accordance with the selected one of the plurality of driver modes; determining rotational speed of the electric motor; determining an amount of current being delivered to the electric motor; comparing the amount of current being delivered to the electric motor to the maximum current threshold; and interrupting transmission of torque to the output spindle when the amount of current being delivered to the electric motor exceeds the maximum current threshold and the rotational speed of the electric motor is decreasing. | 10-17-2013 |
20130269962 | Forming Device and Method for the Operation of a Forming Device - A forming device comprising a machine bed, a tool carrier supported on the machine bed in a manner capable of relative movement for mounting a tool, a drive device coupled to the tool carrier, a machine control unit and a monitoring device designed for monitoring movements of the tool carrier and for providing a shutdown signal to a disconnecting device located upstream of the drive device on the occurrence of a pre-settable monitoring case. It is provided that the machine control unit is designed in accordance with a first safety category of a safety standard, and that the monitoring device and the disconnecting device form a safe operating system designed in accordance with a second safety category of the safety standard, the second safety category being at a higher level than the first safety category within the safety standard. | 10-17-2013 |
20130277077 | MACHINE TOOL - A hand-held machine tool includes a tool accept for mounting a chiseling tool on an operating axis. A pneumatic hammer mechanism includes a hammer mobile on an operating axis, an exciter, and a pneumatic chamber sealed by an exciter and the hammer, which couples the movement of the exciter to the hammer. The exciter is driven by a motor and moves back and forth between a frontal dead point distant from the tool and a dead point near the tool. A damper device includes a supercharger and a controlled outlet valve. The controlled outlet valve allows air to flow from the supercharger into the pneumatic chamber when the exciter is in the proximity of the dead point distant from the tool. | 10-24-2013 |
20130284471 | POWER TOOL HAVING ROTARY INPUT CONTROL - A power tool includes a housing, an output member that rotates about a longitudinal axis, and a motor drivably connected to the output member. A rotational motion sensor is arranged in the housing and operable to detect a user input that includes a rotational motion of the housing in a desired rotational direction about the longitudinal axis of the output member. A controller is configured to receive a first input indicative of a user-desired rotational motion of the output member, and a second input, from the rotational motion sensor, indicative of an actual rotational motion of the power tool. The controller determines a user-desired rotational direction of the output member about the axis from the first input, determines an actual rotational direction of the housing about the axis from the second input, and causes the motor to drive the output member to simulate ratcheting movement in the user-desired rotational direction. | 10-31-2013 |
20130284472 | MULTI DIRECTIONAL OSCILLATION FROM A ROTATIONAL SOURCE - The present invention provides multi-directional oscillation from a rotational source, by receiving a rotational motion, converting the rotational motion to a first oscillating motion, converting the first oscillating motion to a second oscillating motion that is normal to the first oscillating motion and transferring the first oscillating motion and the second oscillating motion to a working element. | 10-31-2013 |
20130284473 | HAND-HELD MACHINE TOOL AND CONTROL METHOD - A hand-held machine tool includes a tool accept for mounting a chiseling tool on an operating axis. A pneumatic hammer mechanism includes an exciter, driven back and forth by a motor about a stroke between a dead point distant from the tool and a dead point near the tool, a hammer moved back and forth on the operating axis between a reversal point distant from the tool and a point of impact, and a pneumatic chamber sealed by the exciter and the hammer, which couples the movement of the hammer to the movement of the exciter. A damping device increases the pressure in the pneumatic chamber when the exciter during its motion in the direction to the dead point distant from the tool has approached to less than half the stroke to the dead point distant from the tool. | 10-31-2013 |
20130284474 | METHOD AND DEVICE FOR PRODUCING A VIBRATING MOTION OF A MASS - The invention relates to a method and device for producing an oscillatory motion of a mass, in particular of a tool, wherein the mass is mechanically connected to at least two clamping elements between said clamping elements in the direction of oscillation propagation and the mass ( | 10-31-2013 |
20130292146 | DUAL DRIVE FLOOR SCRUBBER - A floor cleaning or burnishing machine has at least one motor controller that is electrically connected to an analog joystick control, right and left potentiometers, an electrical power source, and right and left electrical drive motors. The right motor is mechanically connected to a right rear steering drive wheel and the left motor is mechanically connected to a left rear steering drive wheel. Rotational speed and direction of each rear wheel is independently controlled, by way of the joystick in cooperation with respective potentiometers, in either a forward or reverse direction. At any given time, each potentiometer controls a respective motor controller which individually controls the rotational speed and direction of a respective wheel, thereby each wheel is capable of rotating in an opposite direction at a different speed to the other wheel. To slow the floor cleaning or burnishing machine down, regenerative braking is utilized by operating the motors as generators. | 11-07-2013 |
20130306339 | IMPACT TOOL - An impact tool which provides a consistent level of impact force is provided. The internal mechanism of the impact tool has a trip release member and a hammer which remains in constant contact over a constant surface area throughout cycling of the impact tool. Additionally, the trip release member may slide against a slug having a straight conical surface to minimize variation. Moreover, the hammer may be non-rotateable so that a non round or asymmetrical head may be used. | 11-21-2013 |
20130319704 | DRIVE UNIT FOR A POWER OPERATED TOOL - The invention relates to a drive unit for a power operated tool for the generation of a screw pretensioning force, with a pump unit ( | 12-05-2013 |
20130327551 | DEVICE AND METHOD FOR ROCK AND - CONCRETE MACHINING - The invention concerns a hydraulic, valveless impact mechanism for use in equipment for the machining of at least one of rock and concrete comprising a machine housing ( | 12-12-2013 |
20130327552 | POWER TOOL HAVING MULTIPLE OPERATING MODES - A handheld power tool is configured to receive an input indicative of a clutch setting for an electronic clutch from the tool operator, where the clutch setting is selectable from a drill mode, an automated drive mode and one or more user-defined drive modes. Each of the user-defined drive modes specifies a different value of torque at which to interrupt transmission of torque to the output spindle. In an automated drive mode, the controller interrupt torque to the output spindle in an automated manner when a fastener being driven reaches a desired stopping position. In a selected one of the user-defined drive modes, the controller sets a value of a maximum current threshold in accordance with the selected one of the user-defined drive modes and interrupts torque to the output spindle when current measures exceeding the maximum current threshold. | 12-12-2013 |
20130333904 | Machine Tool and Control Method - A machine tool with a tool holder which is equipped to mount a tool, such as a chiseling tool, moveably along a movement axis. A striking mechanism contains a primary drive, arranged around the movement axis, containing at least one magnetic coil. The striking mechanism has a striker and an anvil arranged within the magnetic coil on the movement axis in sequence in the impact direction. The anvil protrudes at least partially into the magnetic coil. In addition, the striking mechanism can have an air spring affecting the striker in the impact direction. A controlled power source forms an electrical circuit in which a current flows, controlled at a target value, from the power source and into at the at least one magnetic coil during an acceleration phase. A controller ends the acceleration phase when a change, typical for an impact, is detected in the current flowing in the magnetic coil or a change, typical for an impact, is detected in a control variable of a control circuit of the power source. | 12-19-2013 |
20130333905 | Machine Tool and Control Method - A machine tool with a tool holder which is equipped to mount a tool, such as a chiseling tool, moveably along a movement axis. A striking mechanism, such as a magnetic-pneumatic striking mechanism, contains a primary drive which is arranged around the movement axis and has in sequence in the impact direction a first magnetic coil, a permanent and radially magnetized annular magnet, and a second magnetic coil. The striking mechanism has a striker and an anvil arranged within the magnetic coils on the movement axis in sequence in the impact direction. In addition, the striking mechanism may have an air spring affecting the striker in the impact direction. The associated inventive control method provides that, during a movement of the striker opposite the impact direction, a measurement is measured for a voltage induced by the first magnetic coil. The controller starts an acceleration phase according to a change in the polarity of the induced voltage. The primary drive accelerates the striker in the impact direction during the acceleration phase. | 12-19-2013 |
20140000920 | SLIDE HAMMER DEVICE AND METHODS OF USING SAME | 01-02-2014 |
20140008087 | COMBINATION OF ELECTRIC TOOLS AND START METHOD THEREOF - A combination of electric tools includes a first electric tool and a second electric tool respectively having an independent power supply. The second electric tool starts working automatically responding to the startup of the first electric tool. Thereby the second electric tool starts automatically after the first electric tool is started to operate by a user without an extra operation of the user, which is convenient to the user. | 01-09-2014 |
20140048298 | HAND-HELD POWER TOOL, IN PARTICULAR BATTERY-POWERED SCREWDRIVER - A hand-held power tool includes a drive device in a housing. The drive device is intended to drive a tool accommodated in a tool-accommodating region. An adjusting motion of the hand-held power tool by the user is detected via a sensor device. A controlled variable for setting the drive device is generated in an open-loop or closed-loop control device in the hand-held power tool according to the detected adjusting motion. | 02-20-2014 |
20140048299 | Torque-Angle Structural Fastening System - A fastening system that comprises a fastener and a single tool that provides both snugging torque and final tensioning to the fastener assembly, from a single side, with a single operator, with no torque feedback. The fastener comprises a nut and a bolt with a head and a shank extending axially from the head. The shank has at least one threaded portion and at least one splined portion, the splined portion defining the end of the bolt. The splined portion remains connected to the threaded portion after final tensioning. The tool comprises a first socket and a second socket, wherein the first socket is engaged with an outer surface of the nut and the second socket is engaged with the splined portion on the fastener. Snugging torque and final tension are both controlled by the tool. | 02-20-2014 |
20140054053 | TOOL DRIVING DEVICE, TOOL DRIVING METHOD, AND TOOL FEEDING MECHANISM FOR TOOL DRIVING DEVICE - A tool feeding mechanism for a tool driving device includes a cylinder mechanism, a positioning mechanism, and a holding mechanism. The cylinder mechanism moves a tool rotation driving device to hold and rotate a tool, in a tool axis direction on an exterior of a cylinder tube using power of a piston. The positioning mechanism is connected to the cylinder tube side of the cylinder mechanism either directly or indirectly in order to position the cylinder mechanism relative to a workpiece. The holding mechanism holds the tool rotation driving device such that the power of the piston in the cylinder mechanism is transmitted to the tool rotation driving device. | 02-27-2014 |
20140069671 | FASTENER DRIVING TOOL USING A GAS SPRING - A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time. | 03-13-2014 |
20140076596 | APPARATUS FOR DETECTING RAMMER TIP-OVER - In an apparatus for detecting tip-over of a rammer equipped with a crankcase accommodating an output shaft rotatably connected to an engine, a movable unit accommodating a converter mechanism for converting rotation of the output shaft to vertical motion of a movable member, a tamping shoe connected to the movable unit, and a handle operable by an user, and adapted to thrust upward in the gravitational direction by the vertical motion of the movable member and go into a free fall to compact a ground surface, it is determined whether a detected engine speed becomes equal to or smaller than a threshold value set lower than an engine idling speed when the engine has been operated at a rammer working speed set greater than the engine idling speed, and if it does, it is discriminated that the rammer has tipped over. | 03-20-2014 |
20140083727 | HAMMER DRILL - A hammer drill having a motor mounted within a body and an output spindle; a tool holder mounted on the body capable of holding a cutting tool; a hammer mechanism having a piston; a reciprocating drive for converting rotary movement of the motor into reciprocating movement of the piston; a ram reciprocatingly driven by the piston via an air spring to strike a cutting tool held in the tool holder, the hammer mechanism performing one hammer cycle each time the ram strikes a cutting tool during normal use; an air replenishment mechanism capable of refreshing the air spring during certain time periods during normal use; the air replenishment mechanism capable of being adjusted to refresh the air spring during time periods within the hammer cycle and/or the system allows different volumes of air into or out of the air spring during the refreshment time periods. | 03-27-2014 |
20140083728 | HAMMER DIRLL - A hammer drill including a cylinder; a piston and a ram mounted within the cylinder; a drive mechanism for converting rotation of a motor into reciprocating movement of the piston; a ram driven by the piston via an air spring; at least two air entry points formed through the wall of the cylinder in different axial positions along the length of the cylinder, each of which are capable of replenishing the air spring; the ram striking a tool in a tool holder; wherein there is further provided a selector mechanism which selectively opens and close the air entry points; characterized in that the selector mechanism opens only one air entry point at any one time during normal use, the selector mechanism closing all other air entry points, each of the air entry point capable of replenishing the air spring during normal use when opened by the selector mechanism. | 03-27-2014 |
20140096985 | METHOD AND MECHANISM FOR THE INDIRECT COUPLING TORQUE CONTROL - A method and mechanism of the indirect coupling torque control provides a rotary impact mechanism driving a rotary drive mechanism linked between the rotary impact mechanism and a fastener member, when the rotary impact mechanism rotates the fastener member. The rotary drive mechanism can accumulate a rotation stress generated by the rotary impact mechanism to rotate the fastener member. When the rotation stress accumulated in the rotary drive mechanism is larger than the torque value applied to the fastener member, a linear relation between a sensed signal measured from the stress accumulated in the rotary drive mechanism and the torque value applied to the fastener member is provided. Whereby the linear relation is used to control the torque valued applied to the fastener member when the rotary impact mechanism is rotating. | 04-10-2014 |
20140102739 | Remote Control Tool Assembly For Use In Live Line Environments - A remote control tool assembly for use in live line environments having an insulated pole (often termed a “hot stick”) with a tool at one end that generally includes a power supply so that the tool is fully isolatable at the end of the insulated pole. At the other end, a tool control transmitter is positioned which is configured to communicate wirelessly with the tool. Thus, the user can operate the tool remotely from the tool controller, which is particularly useful in a live line environment. | 04-17-2014 |
20140110138 | PROTECTIVE APPARATUS IN CONNECTION WITH MACHINE TOOLS TO SAFEGUARD WORKLOAD INSTALLATION - This invention is an installation of a protective apparatus to prevent safety problems of machine tools caused in machining work-load process. The protective apparatus is comprised of a circuit used to slowly rotate the loaded machine tool by stepping it at a low speed and low power one full turn to insure clear workload path, and before full power is applied. This protective system will activate the full power only if a full rotation is achieved without any obstacles caused by chuck wrench or work-load interference with machine parts. The machine will subsequently arm itself to go into full power rotation if the operator activates the machine within a short period of time after the safety rotation is completed. The safety cycle is performed each time the operator activates the machine tool. This protective apparatus keeps the machine tool in low-speed and low-power unless the safety cycle has been performed each time the machine tool is turned on. | 04-24-2014 |
20140110139 | Rock drilling apparatus and method for controlling the orientation of the feed beam - A rock drilling apparatus and method for controlling the orientation of a feed beam of a rock drilling apparatus including a carrier, a drilling boom attached at a first end to the carrier, a feed beam attached turnably to a second end of the drilling boom, a drilling unit attached movably along the feed beam, and a support attached to the feed beam for supporting the drilling boom on the ground. The orientation of the boom and feed beam are adjusted to compensate for the orientation change caused by driving the support onto the ground. | 04-24-2014 |
20140151078 | METHOD AND SYSTEM FOR CONTROLLING THE MOVEMENT OF A MAST OF A DRILLING MACHINE, IN PARTICULAR FOR OBTAINING PILES - The method comprises the following operations: delivering a moving power to at least one linear actuator ( | 06-05-2014 |
20140158388 | Torque-Limited Impact Tool - Illustrative embodiments of torque-limited impact tools are disclosed. An impact tool may include a shaft adapted to rotate about an axis, a hammer having a hammer jaw with an obtuse impact surface, and an anvil having an anvil jaw with an acute impact surface. The shaft may include a first helical groove, and the hammer may include a second helical groove. The impact tool may further include a ball received in the first and second helical grooves, wherein the ball rotationally couples the hammer to the shaft and permits axial travel of the hammer relative to the shaft. The obtuse impact surface of the hammer jaw may be adapted to impact the acute impact surface of the anvil jaw when the shaft rotates in a first direction. | 06-12-2014 |
20140166323 | Kickback Reduction for Power Tools and Machines - An apparatus and methods are described for protecting an operator from sudden, unexpected or dangerous movement of powered hand held tools and the like. A set of parameters for safe operation of the tool are provided, which parameters may be adjusted or selected based on the manner in which the tool is being operated. The power tool is fitted with sensors including an accelerometer, operating to sense acceleration of the tool in a plurality of axes during operation. The output of the accelerometer is coupled to a computing circuit which determines if the acceleration of the tool is within the safe operation parameters. When acceleration of the tool exceeds one or more of the safe operating parameters, power to the tool motor is limited or otherwise adjusted in order to prevent or reduce the movement of the tool thereby protecting the operator. | 06-19-2014 |
20140174772 | HANDHELD WORK APPARATUS HAVING A DRIVE MOTOR FOR DRIVING A WORK TOOL AND METHOD FOR OPERATING SAID APPARATUS - A handheld work apparatus has a drive motor for driving a tool, an operating element for operating the drive motor, a first inhibiting unit and a second inhibiting unit. Each inhibiting unit has a disable state and an enable state. The operating element is inhibited for operating the drive motor when at least one of the inhibiting units is in its disable state. The work apparatus further has a locking device which locks the first inhibiting unit in its enable state if the second inhibiting unit is in its enable state. A method for operating the work apparatus provides that the first inhibiting unit is locked in its enable state when the first inhibiting unit and the second inhibiting unit are situated in their enable states at the same time. | 06-26-2014 |
20140182868 | BOGEY STYLE TORQUE BUSHING FOR TOP DRIVE - Present embodiments are directed to a top drive system having a top drive, a bogey chassis, wherein the top drive is coupled with the bogey chassis, an upper bushing coupling the bogey chassis to a torque track, and a lower bushing coupling the bogey chassis to the torque track, wherein the upper and lower bushings are configured to translate along the torque track. | 07-03-2014 |
20140196920 | POWER TOOL HAVING IMPROVED OPERABILITY - A power tool includes: a drive unit for a tool; an operating device for activating the power tool; a measuring device for measuring a motion of the power tool; and a filter for filtering at least one measured value of the measured motion. The operating device is configured to reduce a power output of the drive unit when the filtered, measured value corresponds to a state of reduced ease of operation. | 07-17-2014 |
20140216772 | FASTENING DEVICE AND CONTROL METHOD OF THE SAME - A fastening device may include a fastening tool body having a fastener on one end; a drive unit installed on the fastening tool body and providing fastening power to the fastener; a gyroscopic sensor that is installed on the fastening tool body and detects the displacement of the fastening tool body and outputs a detection signal thereof; an angle sensor that detects the angle of the fastening tool body and outputs a detection signal thereof to a controller; and the controller that receives the signals output from the gyroscopic sensor and the angle sensor and output a set actuating signal to the drive unit. | 08-07-2014 |
20140216773 | ELECTRIC MACHINE TOOL AND METHOD FOR CONTROLLING THE ELECTRIC MACHINE TOOL - In a method for controlling an electric machine tool having an electric motor for driving a rotating insertion tool, the electric machine tool is operated in one of multiple operating modes, and at least one parameter of the machine tool is detected. The instantaneous operating state of the electric machine tool is ascertained and evaluated based on the detected parameter. A protective function is activated when the presence of a critical operating situation is recognized during the evaluation of the instantaneous operating state. The instantaneous operating mode of the electric machine tool is detected, and the evaluation of the instantaneous operating state is adapted in each case to the instantaneous operating mode. | 08-07-2014 |
20140231111 | POWER TOOL WITH FLUID BOOST - A power tool includes a fluidically-driven prime mover controlled by a multi-stage, throttle-actuated dual-ported mechanism disposed in the power tool. When the first stage is actuated, pressurized fluid is admitted into the prime mover via a first delivery path in fluid communication with one of the ports. When the second stage is actuated, pressurized fluid is also admitted into the prime mover via a second delivery path in fluid communication with the other port to augment the volume of pressurized fluid admitted into the prime mover via the first delivery path. In one embodiment of the present invention, the prime mover includes a dual-chamber air motor. Upon detecting an imminent stall condition, an operator can axially advance a trigger stem to admit a boost of pressurized air into the motor via the second delivery path. | 08-21-2014 |
20140231112 | HAND POWER TOOL DEVICE - A hand power tool device includes a drive unit, an electronic unit, and a suction unit configured to extract dust out of a working region by suction. The hand power tool device further includes a cooling unit configured, at least partially, to cool the drive unit and/or the electronic unit. The cooling unit and the suction unit are configured, at least partially, as a single piece. | 08-21-2014 |
20140231113 | HAND-HELD POWER TOOL AND METHOD FOR OPERATING THE HAND-HELD POWER TOOL - A method is provided for controlling an electric hand-held power tool having a device housing and a coupling device on the device housing side for securing an auxiliary handle to the device housing. It is detected whether the auxiliary handle is secured to the device housing and/or whether the auxiliary handle is gripped by a user. In addition, the instantaneous operating state is ascertained and evaluated. A protective function is activated when the occurrence of a critical operating case is recognized during the evaluation of the instantaneous operating state. It is provided that the evaluation of the instantaneous operating state and/or the activation of the protective function is/are carried out as a function of whether the auxiliary handle is secured to the device housing and/or whether the auxiliary handle is gripped by the user. | 08-21-2014 |
20140238711 | Positive Feed Tool with a Modular Architecture - Positive feed tools that include gear heads configured to be driven by a motor. The gear heads further include a pneumatic manifold that provides for access to input/output signals to add on additional components that include additional air logic functionality. The gear head includes first and second interface positions. Each interface is configured to receive either the motor for powering the gear head or an add-on component to provide additional functionality to the tool. | 08-28-2014 |
20140238712 | DRIVE DEVICE AND METHOD FOR OPERATING A DRIVE DEVICE - The invention relates to a drive device for driving a drill rod having a drive means with a rotary drive and a vibration drive for driving an output shaft in a rotating and axially vibrating manner and an adapter means which is coupled with the output shaft and comprises an outer adapter for connecting an outer rod and an inner adapter for connecting an inner rod. The outer adapter is adapted to transmit the rotational movement and the axially vibrating movement of the output shaft to the outer rod. The inner adapter is supported in an axially displaceable and spring-mounted manner in the outer adapter. The invention further relates to a method for operating a drive device. | 08-28-2014 |
20140238713 | Interactive Tools - A method includes receiving a first alignment state indication at a portable handheld tool from an alignment tool. The first alignment state indication indicating an alignment state of a workpiece relative to a reference that is independent and distinct from the portable handheld tool. The method also includes, based on the first alignment state indication, enabling a first selectable drive state of a drive system of the portable handheld tool. The method further includes actuating the drive system responsive to user input, where the drive system is limited based, on the first selectable drive state. | 08-28-2014 |
20140238714 | Torque Tool Cycle Counter - A tool for applying torque to workpieces, having a sensor adapted to detect a rotational parameter measured during application of torque to each of the workpieces, wherein the rotational parameter includes an amount of angular rotation applied to each of the workpieces an/or an amount of torque applied to each of the workpieces, a memory operably coupled to the sensor and including a stored number of cycles, wherein the sensor is adapted to add a cycle count to the stored number of cycles each time that the rotational parameter meets a parameter threshold to indicate a number of the workpieces in which the rotational parameter meets the parameter threshold, and an indicator adapted to indicate to a user when the parameter threshold has been met for one of the workpieces and to indicate the stored number of cycles. | 08-28-2014 |
20140262388 | TOOL HAVING A REAR MOTOR - A tool including a first portion housing, a second portion housing, and a driveshaft housing. The first portion housing includes a motor, configured to provide a top rotational movement at a first angular speed, and a controller. The controller operates the motor at a second angular speed. The second portion housing includes a gear box and a tool head. The driveshaft housing, including a driveshaft, connects the first portion housing to the second portion housing. The driveshaft transmits the rotational movement at the second angular speed from the first portion housing to the second portion housing. The gear box receives the rotational movement at the second angular speed and outputs the rotational movement at a third angular speed. The tool head receives the rotational movement at the third angular speed from the gearbox. | 09-18-2014 |
20140262389 | POWER TOOL OPERATION RECORDING AND PLAYBACK - A power tool and method for recording and playing back a motor parameter. The power tool includes housing, a motor, a trigger, a mode selector switch, and a controller. The trigger outputs an activation signal based on a user input. The mode selector switch is configured to receive a user mode selection indicating a recording mode, a normal operating mode, or a playback mode. The controller receives a mode selection signal from the mode selector switch indicating the selected mode. The controller enters the recording mode when the user mode selection indicates the recording mode, and records a motor parameter while the power tool is in the recording mode to generate a recorded motor parameter. In the playback mode, the controller operates the motor based on the recorded motor parameter upon receiving the activation signal from the trigger. | 09-18-2014 |
20140290971 | CONTROL OF THE WORKING FREQUENCY OF AN IMPACT MECHANISM - Control device of an impact mechanism operable by a pressure media having an element for reversing the axial pressurization of the percussion piston and the return of the medium. In order to achieve a controllability of impact mechanisms by which the energy and the frequency of the moved percussion piston can be adjusted, at least one channel switchable by the reversal as a return line for the medium from the percussion hammer has at least one switchable element for the flow control. | 10-02-2014 |
20140290972 | ACCUMULATOR - A hydraulic accumulator including an energy storage apparatus with a first piston face configured to reversibly compress an energy storage medium and a second piston face forming at least part of an inner surface of a corresponding second fluid chamber reversibly expandable by movement of the second piston face. A third piston face forms at least part of an inner surface of a corresponding third fluid chamber reversibly expandable by the third piston face. The first, second and third piston faces are coupled together. | 10-02-2014 |
20140326473 | Method for Switching the Striking Stroke of a Striking Piston of a Percussion Device - A switching method includes starting up a percussion device in acting on a control device arranged to vary the striking stroke of the striking piston between a short striking stroke and a long striking stroke. The percussion device is forced to operate on a short striking stroke for a predetermined period of time from the starting up of the device, and in acting on the control device so as to allow the percussion device to operate on a long striking stroke, after the expiry of the predetermined period of time. | 11-06-2014 |
20140338939 | ELECTRIC TOOL AND CONTROLLING METHOD THEREOF - An electric tool has a motor, an implementing member driven by the motor for driving a working element and a controlling circuit for controlling the electric tool. The controlling circuit includes a current detecting module for detecting the current flowing through the motor; a microprocessor for memorizing and storing a current value; an user interface module for an user to select working modes, and the working modes at least comprising a learning mode for recording the current value after the implementing member has driven the working element and a constant torque mode for driving other working elements having the same size based on the recorded current value; and a driving module for driving or stopping the torque output of the motor. The electric tool can achieve the function of electronic clutch so as to drive screws having the same size with substantially the same effect. The present disclosure also discloses a controlling method by using the above controlling circuit. | 11-20-2014 |
20140345894 | POLE SPLINT DRIVER IMPLEMENT - Disclosed embodiments are directed toward driver implements and methods for driving rigid members into a support surface. In some embodiments, the disclosed driver implement is combined with a power machine that provides operation signals to the driver implement. Other embodiments disclose a rigid member that is configured to be driven into a support surface by various embodiments of the driver implement. | 11-27-2014 |
20140345895 | AIR SUPPLYING METHOD FOR CLUSTER HAMMER HAVING NOZZLES INSTALLED - Disclosed is a method for supplying air to a cluster hammer in which a nozzle has been installed. An air distribution block | 11-27-2014 |
20140352992 | ROTATION SPEED CONTROL METHOD FOR IMPACT TYPE FASTENING TOOLS - A rotation speed control method for impact type fastening tools has a presetting step and a dynamic control step. The presetting step includes setting a plurality of working positions, and setting a PWM signal with a larger duty cycle as a driving signal in a period after energization so that a motor can rotate at a higher speed and improve work efficiency. When a main controller judges, according to a feedback means, that the operation enters an impact phase and torsion control is needed to reduce rotation speed, the main controller makes adjustment by driving the motor with a PWM signal with a lower duty cycle corresponding to a working position currently set by the user. The control method improves work efficiency, and meet the user's need of driving a fastener with a higher rotation speed at an early stage of operation. In the torsion control phase, the method according to the present invention can automatically use a suitable torsion to drive the fastener to better meet the user's needs in operation and enable the user to obtain an excellent experience of use. | 12-04-2014 |
20140352993 | EXTENDABLE MULTI-TOOL INCLUDING INTERCHANGABLE LIGHT BULB CHANGER AND ACCESSORIES - An extendable multi-tool comprising an extendable pole and a head unit selectively detachably coupled together. The head unit comprises a grasping mechanism configured to engage a light bulb, a control switch and a rotation mechanism. The control switch configured to cause the grasping mechanism to become secured to a light bulb, and to cause the rotation mechanism to automatically detect when a light bulb is secured to the grasping mechanism and then rotate the grasping unit and the secured light bulb in a first direction based on the position of the control switch. The tool further comprises an arm unit for positioning the grasping mechanism in a desired configuration to engage the light bulb, wherein the arm member is coupled to the grasping mechanism. | 12-04-2014 |
20140360743 | Rock drilling machine, rotating sleeve and method for lubrication - The disclosure relates to a rock drilling machine, a rotating sleeve and a method of lubricating a shank of the rock drilling machine. The rock drilling machine includes a rotatable shank for connecting a drilling tool. The shank is rotated by a rotating sleeve arranged around the shank. Gears are arranged between the shank and the rotating sleeve. The rock drilling machine is provided with a lubricating system for lubricating the gears and also bearings of the rotating sleeve. | 12-11-2014 |
20140367130 | Rotary Impact Tool - In at least one illustrative embodiment, a rotary impact tool comprises a motor including a rotor and an input shaft coupled to the rotor for rotation therewith about an input axis, an anvil configured to be rotated about an output axis and including an output shaft, a carrier driven by the input shaft and having a passage extending through a distal end thereof, and a hammer supported and driven by the carrier and configured to impact the anvil to cause the anvil to rotate about the output axis. The anvil may comprise a blade coupled to the output shaft and configured to direct a lubricating fluid through the passage when the anvil or carrier rotates about the output axis. | 12-18-2014 |
20140374129 | VIBRATORY APPARATUS - A vibratory apparatus for attachment to a container adapted to utilized pressurized air from a portable pressure source, which apparatus includes a base and a vacuum generator connectable to a pressure source, wherein the vacuum generator is attached to the base and adapted to create a vacuum between the base and a container. The apparatus further includes a vibrator attached to the base and adapted to vibrate the base and any attached container and a conduit connectable to the vibrator at a first end and a pressure source at a second, opposite end. The conduit has a passage extending therethrough and a flow restrictor is disposed between the pressure source and the vibrator to allow a predetermined, non-adjustable volume of airflow through the conduit into the vibrator in a first direction of flow. | 12-25-2014 |
20150014004 | Work-Tool Control System and Method - One embodiment includes display device configured to wirelessly receive a first position status from a positioning device; display a first work-tool working-axis leveling status based on the first position status; receive cut parameters; receive a cut-start indication; determine a first work-tool position status difference based on cut parameters and a second position status; present a position status correction indicator; determine that a third position status is within cut parameters; send a cut-start signal to the positioning device operable to actuate the first work-tool; determine a work-tool cut completion; and send a cut-end signal to the positioning device operable to de-actuate the first work-tool. | 01-15-2015 |
20150027741 | FILTER TURNING MECHANISM - A filter turning mechanism is attached to an engine in proximity to a filter (such as an oil filter), and may be used to install or remove a filter by turning the filter. The filter turning mechanism contacts a filter, and rotates the filter when the filter turning mechanism is rotated with a tool. One implementation of the filter turning mechanism includes an inner drive gear and a filter drive mechanism. The inner drive gear normally spins freely within the filter drive mechanism, but when pushed into the filter drive mechanism with a suitable tool such as a ratchet extension, the inner drive gear engages the filter drive mechanism, thereby causing rotation of the inner drive gear to rotate the filter drive mechanism as well, which in turn rotates the filter. | 01-29-2015 |
20150041162 | PROGRAMMABLE TORQUE CONTROL METHOD FOR SENSING LOCKING ELEMENT - In a programmable torque control method for sensing locking element, at least one sensing locking element and a power torque tool are provided. A s sensed strain signal produced by the sensing locking element is transmitted to a controller of the power torque tool when the sensing locking element is driven by a power torque tool to a desired position and forward and backward rotations of a driving motor of the power torque tool are controlled by the controller, and the forward or backward rotation of the driving motor is determined according to the s sensed strain signal to control a programmable continuous motion until the tightening torque or clamping force reaches to a predetermined target torque value. | 02-12-2015 |
20150041163 | Impact Tools - Illustrative embodiments of impact tools are disclosed. In at least one illustrative embodiment, an impact tool may comprise an impact mechanism including a hammer and an anvil. The hammer may be configured to rotate and to move between a disengaged position in which the hammer does not impact the anvil when rotating and an engaged position in which the hammer impacts the anvil when rotating, and the anvil may be configured to rotate when impacted by the hammer. The impact tool may further comprise an electronic controller configured to cause the hammer to (i) rotate in the disengaged position until reaching a threshold rotational speed and (ii) move from the disengaged position to the engaged position in response to the hammer achieving the threshold rotational speed. | 02-12-2015 |
20150041164 | FASTENER SETTING ALGORITHM FOR DRILL DRIVER - A method is provided for setting a fastener in a workpiece. The method includes: monitoring a parameter of the power tool during operation of the power tool, where the parameter is indicative of the placement of a fastener being driven by the power tool in relation to the workpiece; detecting, a change in the parameter, where the detected change in the parameter indicates that the power tool became disengaged with the fastener; modifying operation of the power tool in response to the detected change in the parameter; subsequently detecting a second change in the parameter; and interrupting transmission of torque to the output spindle in response the detected second change in the parameter, thereby properly setting the placement of the fastener in relation to the workpiece. | 02-12-2015 |
20150041165 | Method and Apparatus for Navigating Longitudinal Bores - An apparatus for accessing longitudinal bores which includes: a length of resilient tube configured to be extendible along at least a portion of its length; wherein one end of the resilient tube includes a utility head thereon; and wherein the other end of the tube is configured to directly or indirectly connect to, and receive a force from, a physical energy source. | 02-12-2015 |
20150083448 | ELECTRIC TOOL AND METHOD FOR FASTENING A THREADED MEMBER BY USING IT - An electric tool and a method for fastening a threaded member by using it, the electric tool has a torque output system and a control system configured to, according to a fastening level selected by a user, invoke a corresponding data to drive the motor to enable it to output with designated single-time impact quantity and impact times. | 03-26-2015 |
20150090468 | POWER TOOL AND METHOD OF OPERATING AN AUTOMATED DRILLING OPERATION - An electric power wrench for fastening and loosening joints includes: a main shaft for delivering a torque to a joint, an electric motor that is arranged to selectively drive the main shaft in two opposed rotational directions, a control unit for controlling the drive of the electric motor, and a transmission that connects the electric motor to the main shaft. The control unit has a first drive mode in which it controls the electric motor such that it delivers a continuous torque in a forward direction, and delivers torque pulses in an opposite backward direction, wherein the transmission includes an inherent play and wherein the torque pulses are produced in said play. | 04-02-2015 |
20150096775 | HYDRAULIC PULSE TOOL HAVING A SHUTOFF FUNCTION AND SHUTOFF CONTROL METHOD USED IN SAME - A hydraulic pulse tool includes a power supply unit, a drive unit electrically connected to the power supply unit, a hydraulic pulse torque generating unit coupled to the drive unit and rotatable by the drive unit to produce impacts for causing the drive to produce an electric current change, and a control unit for judging the electric current change and controlling the operation of the drive unit subject to the judgment result. Subject to the above-stated technical characteristics, the hydraulic pulse tool, in addition to the shutoff function, can reduce errors in judgment and achieve multi-stage torque output control. | 04-09-2015 |
20150096776 | Nailer Driver Blade Stop - A fastening tool which controls the return behavior of a driver blade by using a blade stop and/or a bumper. The fastening tool can remove the driver blade from the drive path upon its return after driving a fastener into a workpiece and bring the driver blade to a resting state by using a bumper to orient the driver blade out of alignment with the drive path and into contact the driver blade stop. | 04-09-2015 |
20150114673 | TORQUE WRENCH ADAPTOR SYSTEM FOR A RAILCAR HAND BRAKE - The present document describes a torque wrench adaptor system for applying a torque value to an operating shaft of a manual brake of a railcar. The torque wrench adaptor system comprises: a central hub for a hand wheel, the central hub attachable to the operating shaft via the central hub; and a socket adaptor removably engageable in the central hub, and adapted for engagement with a ratchet tool; wherein the ratchet tool is for applying torque which is transmitted to the operating shaft via the socket adaptor and central hub until the torque value is reached and applied to the operating shaft. | 04-30-2015 |
20150122520 | Tooling System with Visual Identification of Attached Component - A tooling system that includes a drive unit configured to provide rotational force to a tool member. The tool member is attached at a mount on the drive unit. A camera associated with the drive unit is aligned to capture a target on the tool member. The data is sent to a controller that identifies the tool member based on the target. The controller determines whether the tool member is correct for performing an operation on a work piece. If the tool member is correct, the controller may set one or more operating parameters on the drive unit. If the controller determines that the tool member is not correct, the drive unit is disabled. Further, a signal may be sent to inform an operator of the issue. | 05-07-2015 |
20150122521 | MULTI-PURPOSE ELECTRIC TOOL AND CONTROL THEREOF - A multi-purpose electric tool has a motor, an impact block, a detection assembly configured to detect the position and the movement state of the impact block, and a main control circuit board configured to control whether the motor is powered off upon reaching a preset state according to the detected information of the detection assembly. In the control method, the detection assembly feeds back the detected information to the main control circuit board, if the impact block is not impacting reciprocatingly, the main control circuit board performs torque control according to whether the preset state is reached; and if the impact block is impacting reciprocatingly, the main control circuit board enables the motor to output in a normal mode which does not limiting the current. | 05-07-2015 |
20150122522 | TIGHTENING DEVICE AND TIGHTENING METHOD - A tightening device and a tightening method are able to check that a fastening member has been fastened to a desired set torque or greater after being tightened, without loosening the fastening member. The tightening device executes a first tightening process of adjusting the output of a motor after measured torque that is measured by a torque detector has reached a preset first control start torque, such that the measured torque reaches a preset first set torque in a phased manner through repeated increases and decreases in torque, and blocking power supply to the motor when the measured torque reaches the first set torque, and then executes a second tightening process of driving the motor at an initial output that is less than in the first tightening process, adjusting the output of the motor after the measured torque that is measured by the torque detector has reached a preset second control start torque, such that the measured torque reaches a preset second set torque in a phased manner through repeated increases and decreases in torque, and blocking power supply to the motor when the measured torque reaches the second set torque. | 05-07-2015 |
20150129267 | Restart Protection Device and Method Thereof - The present invention relates to a restart protection device and a method thereof, wherein the restart protection device is installed in an electric device, and comprises a switch module and a restart protecting module. The restart protecting module is connected between the switch module and a motor of the electric device, used for preventing the current outputted by an external electrical power from directly flowing into the motor when the electric device is restarted. To start the electric device, the user must follow the steps of the restart protection method, such that the unexpected accidents resulted from the sudden restart of the electric device can be effectively prevented. | 05-14-2015 |
20150144364 | Operator-Portable Power Supply of Maximum Specific Energy - The present invention relates to a system and method for providing power of maximum relevant specific energy. The system is more particularly defined as an operator-portable power supply utilizing a fuel containing hydrogen peroxide for energy, coupled with water and oxygen recovery, storage and delivery means. Extracting energy, water, and oxygen from the hydrogen peroxide fuel and refining to consumable forms (electrical, pneumatic, hydraulic, etc. energy; potable water; breathable oxygen) is for the purpose of increasing the overall energy output of the power supply per carried mass. The resultant water displaces water otherwise requiring transportation by the operator and the oxygen allows for hyperoxic respiration, increasing the metabolic power output of the operator. | 05-28-2015 |
20150290784 | METHOD FOR CONTROLLING A SCREWDRIVER AND SCREWDRIVER - A method for controlling a screwdriver that has an electromotor, the electromotor having a clear ratio of rotational speed (n) to torque (M) at a defined effective voltage (U | 10-15-2015 |
20150290788 | Percussion Device For A Hydraulic Rock Drilling Machine, Method Of Operation Of A Percussion Device And Hydraulic Rock Drilling Machine Including A Percussion Device - A percussion device for a hydraulic rock drilling machine ( | 10-15-2015 |
20150308192 | DEVICE AND METHOD IN RESPECT OF A ROCK DRILL RIG, DRILL STRING COMPOMENT, HANDLING DEVICE AND ROCK DRILL RIG - A tensioning device for a chain transmission for movement transfer between a driver device and a slide to be driven by a drive chain along a linear guide of a rock drill rig. A first fastening member fastens a first end of the drive chain on the slide. A second fastening member fastens a second end of the drive chain on a tensioning head, which is arranged displaceable in a tension direction of the drive chain on the slide. A spring device is arranged between the tensioning head and the slide for spring loading the tensioning head in the tension direction. At least one of the first and second fastening members includes an adjuster for adjusting tension in the drive chain. Also a method, a handling device and a rock drill rig. | 10-29-2015 |
20150309640 | TOUCH SENSITIVE CONTROL FOR A TOOL - A tool comprises a housing, a tactile sensing device that is coupled to a portion of the housing and that is configured to detect at least one of a position sensing, gesture sensing, and pressure sensing for the tool, a memory that is configured to store information related to a profile, and a processor that is in communication with the tactile sensing device and the memory. The processor may be configured to monitor an output signal from the tactile sensing device when at least one of a position, gesture or pressure is detected and to retrieve the profile from the memory, compare the output signal from the tactile sensing device with the retrieved profile, and generate a second signal based upon the comparison. | 10-29-2015 |
20150328676 | DEVICE FOR CONNECTING COMPONENTS, IN PARTICULAR BY MEANS OF DIRECT SCREWING, SPECIAL FLOW DRILLING SCREWS OR BY MEANS OF FRICTION WELDING, AND METHOD FOR CONNECTING COMPONENTS IN PARTICULAR BY MEANS OF DIRECT SCREWING OR FRICTION WELDING - A device for direct screwing, in particular flow hole screwing, or friction welding includes a guide element extending in an axial direction and being formed in particular as a guide pipe. A driveshaft is movable in the axial direction, disposed within the guide element and driven by a rotary drive. A feed drive is disposed and constructed to generate a feed movement and feed force transmitted to the driveshaft, which is achieved by a feed unit. During the process, depending on a process parameter, a switchover is made from a high feed force to a reduced feed force (flow hole screwing) or to a higher feed force (friction welding). In order to enable the most compact and weight-saving embodiment possible, the feed unit is disposed coaxially to the driveshaft within the guide element and transmits the feed force to the driveshaft in the axial direction and centrally. | 11-19-2015 |
20150336232 | Outdoor Power Device Internal Cooling System - An electric power device may include a casing, a motor disposed within the casing, a control unit, and an air channel. The motor may be configured to operate a working implement of the device and may include a motor housing having at least one outlet through which air cooling the motor exits the motor housing. The air channel may be configured to enclose the at least one outlet of the motor housing. The air channel may provide a passage for the air drawn from outside the casing and through the motor housing out of the casing via an exhaust outlet disposed in the casing at an end of the air channel. | 11-26-2015 |
20150336249 | IMPACT TOOL AND METHOD OF CONTROLLING IMPACT TOOL - An impact tool includes: a motor; a trigger; a controller configured to control driving power supplied to the motor using a semiconductor switching element according to an operation of the trigger; a striking mechanism configured to drive a tip tool continuously or intermittently by rotation force of the motor, the striking mechanism including a hammer and an anvil. The controller drives the semiconductor switching element at a high duty ratio when the trigger is manipulated. The motor is driven so that the duty ratio is lowered before a first striking of the hammer on the anvil is performed and the first striking is performed at a low duty ratio lower than the high duty ratio. | 11-26-2015 |
20150336256 | HYDRAULIC HAMMER HAVING DELAYED AUTOMATIC SHUTOFF - An automatic shutoff system for a hydraulic hammer is disclosed. The automatic shutoff system may include an inlet groove formed around a piston associated with the hydraulic hammer and configured to receive pressurized fluid, and an outlet groove formed around a piston associated with the hydraulic hammer and configured to discharge the pressurized fluid. The automatic shutoff system may also include an annular passage configured to allow the pressurized fluid to flow between the inlet and outlet grooves. The automatic shutoff system may further include a valve disposed upstream of the inlet groove and configured to selectively block the pressurized fluid from flowing into the inlet groove based on an operational state of the hydraulic hammer. | 11-26-2015 |
20150375386 | METHOD FOR CONTROLLING AN ELECTRICAL TOOL - A method for controlling an electrical tool having a motor, a transmission mechanism, a control device, and a function member. The motor drives the function member to move in a reciprocating manner via the transmission mechanism. The function member has a standard position and the control device controls the motor. The control device at least has an associated position sensor capable of detecting a position of the function member. The method for controlling the electrical tool includes at least a reset movement process that is used to reset the function member to the standard position after the function member completes more than one cycle of reciprocating movement. | 12-31-2015 |
20160001408 | Positive Feed Tool with Improved Shift from Forward to Retract - Feed tools and methods of use for initiating a change in a spindle feed direction from an advance direction that moves the spindle towards a workpiece to a retract direction that moves the spindle away from the workpiece. The tool and methods may use a thrust overload force that is generated on one or more of the components to initiate the shift from forward to retract and/or a lift ring that acts on one or more of the components. The tool and methods may also include a two-stage piston to accomplish the shift. The various components may be used independently or in combination within the tool. | 01-07-2016 |
20160001409 | Positive Feed Tool with Interchangeable Gears to Adjust a Feed Rate - A positive feed tool that includes a spindle that is axially moved along a feed path to perform work on a workpiece. The tool includes a gear head with a plurality of gears configured to rotate and axially move the spindle. The gear head is designed to change the changing gears within the gear head to change feed rates on the spindle. The gears can be interchanged without a complete disassembly of the gear head. | 01-07-2016 |
20160001435 | Positive Feed Tool with a Slip Clutch And A Method, to Prevent Jamming - Positive feed tools and methods of use that include a spindle with a distal end configured to receive a tool bit. The spindle is movable in a forward direction for the tool bit to act on a workpiece, and a retract direction to move the tool bit away from the workpiece. The spindle is configured to retract to a home position at which an air motor that drives the spindle is shut off. The feed tool includes a clutch to prevent jamming of the spindle at the home position in the event the air motor is not shut off at the proper time. | 01-07-2016 |
20160001436 | Positive Feed Tool with a Modular Architecture - Positive feed tools that include gear heads configured to be driven by a motor. The gear heads further include a pneumatic manifold that provides for access to input/output signals to add on additional components that include additional air logic functionality. The gear head includes first and second interface positions. Each interface is configured to receive either the motor for powering the gear head or an add-on component to provide additional functionality to the tool. | 01-07-2016 |
20160039013 | POWERED DRILL APPARATUS - A portable power drill ( | 02-11-2016 |
20160046011 | Slide Switch for a Power Tool - A power tool includes a slide switch which is configured to provide variable speed control of the rotational velocity of a drive member as well as provide ON/OFF functionality for the tool | 02-18-2016 |
20160049817 | POWER TOOL WITH STEP-UP CONVERTER - A power tool, includes an electrical motor unit connectable to a battery unit, wherein: a step-up converter, connectable between the battery unit and electrical motor unit, converts a battery voltage U | 02-18-2016 |
20160076216 | HAMMERING DEVICE AND A METHOD FOR OPERATING A HAMMERING DEVICE - Disclosed is a hammering device ( | 03-17-2016 |
20160084005 | Hydraulic rotator converter for a hydraulic impact hammer and method - A hydraulic impact hammer having a hammer housing and a hydraulic piston. The hammer housing has means for attaching a hydraulic rotator converter which has a hydraulic rotator for rotating a drill bit for drilling holes on a surface while the drill bit receives pounding action from the piston. The drill bit has surface portions dimensioned to mate with bushing assembles and a cutout region to loosely engage with the locking mechanism in the hammer housing. After the holes are drilled, the converter is released from the hammer housing so as to allow a hammer tool with a larger diameter to be used for pounding over the holes. The hammer tool also has surface portions dimensioned to mate with the bushing assembles and a cutout region to engage with the locking mechanism so that the hammer tool can receive pounding action from the piston for pounding over the holes. | 03-24-2016 |
20160114408 | POWER TOOL WITH AUTOMATIC CHUCK - A power tool having a tool portion, a chuck and a lock. The tool portion has a housing, a motor, and a spindle driven by the motor. The chuck has a body coupled to the spindle for rotation therewith, and a sleeve rotatably disposed about the body. The lock has a first lock structure pivotally coupled to the housing about a pivot axis, and a second lock structure. The first lock structure has a first locking feature. The second lock structure has a second locking feature and is coupled to the sleeve for rotation therewith. Pivoting the first lock structure into a first pivot position positions the first locking feature in a rotational path of the second locking feature. Engagement of the first and second locking features inhibits rotation of the sleeve so that rotation of the spindle will cause corresponding rotation of the body relative to the sleeve. | 04-28-2016 |
20160121472 | METHOD FOR CONTROLLING THE IMPACT ENERGY OF AN IMPULSE PISTON OF A PERCUSSION TOOL - This control method comprises the steps consisting in providing a control device ( | 05-05-2016 |
20160129575 | METHOD FOR CONTROLLING A PERCUSSION TOOL POWER SUPPLY PARAMETER - A control method including providing a control device arranged to adjust a supply parameter of a percussion apparatus, providing a control unit arranged to apply a control instruction to the control device, switching on the percussion apparatus, measuring at least one sound data in the vicinity of a predetermined area, transmitting the at least one measured sound data to the control unit, comparing the at least one sound data received by the control unit with a predetermined threshold value, correcting the control instruction of the control device depending on the at least one received sound data, and applying, by means of the control unit, the corrected control instruction to the control device. | 05-12-2016 |
20160129578 | Device for Operating a Hand-Held Machine Tool - A manual power tool operating device includes at least one control and regulating unit configured to drive a manual power tool drive unit. The manual power tool further includes at least one operating mode selection element configured to adjust a plurality of operating modes. The at least one control and regulating unit includes at least one operating program configured to be as a function of at least one signal of the operating mode selection element. The at least one operating program configured to at least one of modify and adjust at least two operating parameters characterizing at least one operating mode. | 05-12-2016 |
20160136799 | HAND-HELD ERGONOMIC JACKHAMMER HOLDER FOR CONCRETE FLOOR CHIPPING, JACKHAMMER AND HOLDER ASSEMBLY, AND METHOD OF USE THEREOF - A self-adjusting hand-held ergonomic holder for jackhammer for manual use by an operator in chipping a hardened ground surface along a continuously variable chipping strike angle. The holder includes a rigid main frame with an upper load bearing handle and a cradle receiving a pneumatically powered hammer with a reciprocatable elongated pneumatically controlled bit operatively mounted to one end thereof. A coil spring assembly associated with the cradle dampens vibrations generated by the jackhammer. A spring loaded caster member is mounted to the main frame lower portion opposite the jackhammer and providing dynamic continuously variable relative angular chipping tilt of the elongated bit responsive to and acting against the handle bearing load, transversely along the ground surface between a cradle first position, making a generally small acute angle relative to the bearing load downward axis and spaced apart from the caster, and a cradle second position, making a large acute angle relative to the bearing load downward axis and closely proximate the caster. | 05-19-2016 |
20160160467 | Pile-Driver and Method for Application Thereof - The present invention relates to a pile-driver, comprising a support member arranged or arrangeable in transverse direction at or on a pile, a liquid chamber which is bounded on the underside by the support member and which further comprises one or more side walls and is configured to receive a liquid therein, one or more pressure build-up chambers, an ignition mechanism configured to ignite a fuel present in the combustion space, and wherein the combustion space is configured to expand fuel present therein during combustion such that a pressure build-up takes place above the support member and the liquid present above the support member in the liquid chamber is displaced at least in upward direction away from the support member, whereby a downward force is exerted on the pile via the support member. The invention further relates to a method for driving a pile downward into the ground using such a pile-driver. | 06-09-2016 |
20160184984 | Tool for Manually Operating Oscillating Motorized Tool Accessory - A tool system for use with an accessory tool including a mounting end, comprises an oscillating power tool and a handheld tool assembly. The oscillating power tool includes a first tool holder configured to connect to the mounting end of the accessory tool. The handheld tool assembly includes a second tool holder configured to connect to the mounting end of the accessory tool. | 06-30-2016 |
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20170232600 | Power Tool Ski System and Method | 08-17-2017 |