| Entries |
| Document | Title | Date |
|---|
| 20080277132 | Handheld work apparatus - A handheld work apparatus has an internal combustion engine ( | 11-13-2008 |
| 20090101380 | Portable Power Tool with Double Freewheel Drive Shaft Lock - A portable power tool with a rotation motor ( | 04-23-2009 |
| 20090308629 | ROTATING TOOL - An extremely useful rotating tool is provided that can prevent rattling caused by a clearance between a machine tool and a machine tool retaining hole while bringing the axial center position of the machine tool and the axial center position of the machine tool retaining hole as close together as possible. The present invention is a rotating tool having a rotating main shaft ( | 12-17-2009 |
| 20100078187 | POWER TOOL - This invention disclosed a power tool comprising housing, motor in the housing, switch fixed on the housing used to connect motor and power, output shaft connecting with operator and rotating in single direction in company with the motor driving, and locking device contained in the housing. Power tool has self-locking mechanism which can lock the output shaft no need additional tools or holding force. The locking act can be easier and safer. | 04-01-2010 |
| 20100096156 | PORTABLE POWER TOOL - A power tool is provided with a prime mover which causes the tool to rotate and a housing which houses the prime mover. In a back-end face that is positioned on an opposite side on the housing from a tool side, a back-end groove, into which a user can position his/her web between his/her thumb and forefinger, is formed. A pair of side-face grooves, into which the user can place the thumb and forefinger, are formed in both side faces of the housing. A depth changing portion is formed in at least one of the side-face grooves, such that the depth is reduced toward the back-end face of the housing. According to this structure, even when the housing is gripped directly from the back-end face, the user can easily draw up or raise the power tool. | 04-22-2010 |
| 20100126747 | ANCHOR DRILLING AND SETTING DEVICE - In an anchor drilling and setting device ( | 05-27-2010 |
| 20100206599 | MACHINE-TOOL SPINDLE HEAD - A machine-tool spindle head makes it possible to prevent the size of the entire device from increasing and can easily control drive motors compared to a related device. A machine-tool spindle | 08-19-2010 |
| 20110036609 | Hand Tool Machine Having An Oscillatory Drive - A hand tool is disclosed, comprising a housing, a motor shaft being coupled to a drive motor, a working spindle configured for being driven rotatingly oscillatingly about its longitudinal axis, and a coupling element being driven rotatingly by the motor shaft and having a closed guide surface that revolves around the motor shaft. The guide surface is coupled, via transmission means, to at least one driver for driving the latter. The at least one driver is arranged movably relative to the working spindle and engages the working spindle at a circumferential region thereof for driving the latter rotatingly oscillatingly. | 02-17-2011 |
| 20110048753 | MOTOR-DRIVEN MACHINE TOOL - A motor-driven machine tool comprises a tool driven in a rotating fashion, a drive shaft driven by a drive unit and an output shaft for holding the tool. According to the invention, the rotating motion of the drive shaft can be transferred to the output shaft by way of an eccentric coupling device. A mass balancing device is provided for smoothing out vibrations, which has a stroking mass part moveably mounted in a carriage guide and impinged by an eccentric member driven by one of the shafts. The stroking mass part executes a rotary smoothing motion. | 03-03-2011 |
| 20110139478 | HAND-HELD POWER TOOL - The invention describes a hand-held power tool having a drive train, which includes a motor with a rotor, a drive shaft, and a transmission. According to the invention, at least one flywheel mass is provided that is positionable rotationally symmetrical to the drive shaft and connectable to the drive shaft for co-rotation therewith. | 06-16-2011 |
| 20110186322 | LOCKOUT APPARATUS FOR PROTECTING AN ATTACHMENT DEVICE MOUNTED ON ROTARY POWER TOOLS - A power hand tool comprising an elongated housing with a nose portion having an opening concentric with a rotary output shaft, the nose portion being configured to have an accessory device mounted thereon, a shaft lock mechanism including a shaft lock actuator that is located at least adjacent to or on the nose portion and is configured to be moved by a user to engage the output shaft and prevent rotation thereof, the actuator being configured to be disabled from movement to engage the output shaft when an accessory device is mounted on the nose portion. | 08-04-2011 |
| 20110186323 | DEVICE FOR PREVENTING VIBRATIONS IN A TOOL SPINDLE - A device and a method for preventing vibrations ( | 08-04-2011 |
| 20110203825 | REMOTE-CONTROLLED ACTUATOR - A remote controlled actuator includes an elongated spindle guide section and a distal end member fitted to a distal end thereof for alteration in attitude. The distal end member rotatably supports a spindle for holding a tool. The spindle guide section includes a rotary shaft for transmitting rotation of a tool rotation drive source to the spindle. An attitude altering member inserted in a guide hole is selectively advanced or retracted by an attitude control drive source. An initial attitude hold control unit controls the attitude control drive source so that an initial attitude holding force necessary to maintain the distal end member in the initial attitude can be applied to the attitude altering member. An attitude alteration control unit controls the attitude control drive source so that the attitude of the distal end member can be altered by a force larger than the initial attitude holding force. | 08-25-2011 |
| 20110232931 | GAS-ENGINE-POWERED HANDHELD WORKING MACHINE - A gas-engine-powered handheld working machine has a working unit driven by a engine capable of running on a gas fuel supplied from a gas cartridge. The gas cartridge is arranged such that when the handheld working machine is disposed in a normal rest position where the handheld working machine is placed on a horizontal plane with a bottom surface of a machine body lying flat on the horizontal plane, the gas cartridge is disposed in a substantially vertical position with a discharge nozzle directed downwards while a central axis of the gas cartridge extends substantially perpendicular to the horizontal plane. | 09-29-2011 |
| 20110253405 | Oscillating power tool - An oscillating power tool comprises a motor and an oscillating driving shaft driven by the motor. The driving shaft has a longitudinal axis and a free end. The free end has a flange. The flange of the free end has a securing section on one face. The securing section comprises at least two protrusions which are independent from each other. Each protrusion has at least three tips. As a result of this arrangement, a working tool may be fixed securely and reliably to the driving shaft of the oscillating power tool. | 10-20-2011 |
| 20120085561 | Motor-driven Handpiece - A motor-driven handpiece, which has a grip sleeve with a head area for mounting a tool, in particular for the preparation of tooth substance and/or bone substance, in which the head area is at least partially surrounded or encapsulated by a thermoplastic material which, compared to the material of the rest of the grip sleeve, has a lower thermal conduction value. | 04-12-2012 |
| 20120175143 | REMOTELY ADJUSTABLE FEED SYSTEM - Various embodiments herein provide a remotely adjustable feed system for remotely controlling the movement of a tool head on a machining tool along an axis of motion by means of converting reciprocal linear motion, i.e., back and forth linear motion, into rotary motion. The rate of movement of the tool head along the axis of motion may be controlled by varying the distance of linear motion in each cycle of linear reciprocal motion and/or by varying the rate of linear reciprocal motion cycles per unit time. Alternatively, or in addition, the rate of movement of the tool head along the axis of motion may be controlled by varying the amount of rotary motion that results from a given amount of reciprocal linear motion. Additionally, in some embodiments, the movement of the tool head may be controlled by directly controlling the rotary motion that drives the tool head along the axis of motion. The rotary motion may be controlled by adjusting the speed of continuous rotation and/or adjusting the frequency of pulsed rotations. | 07-12-2012 |
| 20120234572 | Hand-Held Power Tool - A hand-held power tool has a power tool housing made at least partially of plastic material. A drive motor is arranged in the power tool housing and a drive shaft driven connected to the drive motor is provided. A tool member is connected to the drive shaft and driven by the drive motor through the drive shaft. A first bearing rotatably supports the drive shaft relative to the power tool housing. An intermediate element supports the first bearing relative to the power tool housing. The intermediate element is arranged in a receptacle of the power tool housing and is supported on a support surface relative to the bottom of the receptacle. The support surface is less than approximately 50% of an imaginary circular ring surface defined between an outer circumference of the first bearing and the circumcircle of the receptacle. | 09-20-2012 |
| 20120247799 | POWER TOOL - Embodiments of the present invention may include a power tool having a driving motor, a continuously variable transmission traction drive, a blast fan and an airflow-guiding structure. The continuously variable transmission traction drive changes number of rotations from the driving motor and outputs the changed number of rotations. The driving motor rotates the blast fan. The blast fan cools the driving motor by sending airflow to the driving motor. The airflow-guiding structure guides the airflow to the continuously variable transmission traction drive. | 10-04-2012 |
| 20120292069 | PORTABLE POWER TOOL - A power tool is provided with a prime mover which causes the tool to rotate and a housing which houses the prime mover. In a back-end face that is positioned on an opposite side on the housing from a tool side, a back-end groove, into which a user can position his/her web between his/her thumb and forefinger, is formed. A pair of side-face grooves, into which the user can place the thumb and forefinger, are formed in both side faces of the housing. A depth changing portion is formed in at least one of the side-face grooves, such that the depth is reduced toward the back-end face of the housing. According to this structure, even when the housing is gripped directly from the back-end face, the user can easily draw up or raise the power tool. | 11-22-2012 |
| 20120312574 | SYSTEM FOR CONVEYING A FLUIDIC MEDIUM IN A POWER TOOL - A system for conveying at least one fluid medium in a power tool includes at least one structural element for forming a frame and/or a part of a housing of the power tool. The fluid medium is conveyed by at least one fluidic connection in the power tool. In the structural element there is at least one channel for forming the fluidic connection and through which the fluid medium can be conveyed. | 12-13-2012 |
| 20130008681 | TWO-CYCLE ENGINE AND ENGINE TOOL COMPRISING THE SAME - The two-cycle engine comprises a first scavenging opening and second scavenging opening on the inner peripheral wall of a cylinder bore, and a first scavenging passage and second scavenging passage connecting the first scavenging opening and second scavenging opening to the crank chamber. The first and second scavenging passages are provided with an outflow direction change device directing the outflow of an air-fuel mixture flowing out from near the top dead center of the first and second scavenging openings into the cylinder bore and the outflow of the air-fuel mixture flowing out from near the bottom dead center of the first and second scavenging openings into the cylinder bore in different directions. | 01-10-2013 |
| 20130048328 | BIDIRECTIONAL CROSS AIRFLOW MACHINE TOOL - A bidirectional cross airflow machine tool includes a housing chamber to hold a tool spindle and air inlets and air outlets at two sides thereof. The tool spindle is coupled with a balance weight member which includes a first balance weight portion and a second balance weight portion arranged in an up and down fashion so that the tool spindle generates eccentric rotation against the machine tool. The first and second balance weight portions respectively have a first vane set and a second vane set. The first vane set sucks air via the air inlets at one side of the machine tool during rotation of the tool spindle. The air is transmitted from the first vane set to the first and second balance weight portions, and then is discharged via the second vane set through the air outlets at another side of the machine tool to form cross cooling airflow. | 02-28-2013 |
| 20130075122 | WORK MACHINE HAVING MAIN POLE - A work machine includes a main pole internally including a rotation shaft, a tool unit located at one end of the main pole, and a power unit located at another end of the main pole. The main pole includes a first partial pole, a second partial pole and a joint member that joints them to each other. The first partial pole includes a positioning member. The joint member includes a positioning hole configured to engage with the positioning member and a guide groove extending from the positioning hole. The guide groove is configured to guide the positioning member to the positioning hole and to allow the positioning member to escape in at least a section thereof. | 03-28-2013 |
| 20130081840 | Power Tool - A power tool comprises a driving mechanism and a gear housing space ( | 04-04-2013 |
| 20130168121 | Portable Power Tool - A hand-power tool, in particular a drill and/or chiseling hammer, includes a transmission, a machine housing, and an inner housing arranged within the machine housing. The inner housing is provided for at least partially receiving at least one transmission element of the transmission. The at least one transmission element is supported jointly by the inner housing and by the machine housing. | 07-04-2013 |
| 20130168122 | Drive System for Interconnecting Attachment Devices and Handheld Rotary Power Tools - Embodiments of the present invention are directed to a drive system for releasably interconnecting a motor shaft of a rotary hand held power tool and an input shaft of an attachment device that is mounted thereon, the system comprising, an elongated flexible drive shaft connected to the input shaft of the attachment device, the flexible drive shaft having an outer end portion with a non-circular cross-section configured to engage a complementarily shaped cavity of an output shaft operatively attached to the power tool motor shaft, an elongated output shaft operatively connected to the motor shaft of the power tool, the output shaft having a generally cylindrical outer configuration along its length and having a rearward mounting portion for attachment to the motor shaft, an intermediate portion having the complementarily shaped cavity for receiving the flexible drive shaft and a forward portion with an enlarged concentric opening for receiving and guiding the outer end portion of the flexible drive shaft into the cavity during mounting the attachment device on the power tool. | 07-04-2013 |
| 20130186668 | Handheld Power Tool Having a Bearing Device - A handheld power tool is disclosed. The handheld power tool has a linear motor with a rotor. The tool also has a bearing device which has a bearing position for bearing support of the rotor. The bearing position has at least one guide strip which engages in a recess provided in the rotor. | 07-25-2013 |
| 20130199815 | HAND POWER TOOL DEVICE - A hand power tool device includes at least one drive unit, which has at least one drive shaft. The hand power tool device also includes at least one transmission unit which has at least one transmission element that is directly connected to the drive shaft. The hand power tool device also includes at least one cooling unit which has a fan element. The fan element is at least substantially directly connected to the at least one transmission element of the at least one transmission unit. | 08-08-2013 |
| 20130213684 | POWER TOOL - An electric oscillating tool ( | 08-22-2013 |
| 20130264087 | Driving Tool - A driving tool includes a motor, and an end-bit holding section. The motor includes an output shaft. The end-bit holding section is connected to and rotated by the motor and configured to hold an end-bit. The driving tool further includes a weight connected to the motor without a reduction mechanism and rotatable together with the motor and the end-bit holding section. | 10-10-2013 |
| 20130269964 | MAIN SHAFT STRUCTURE OF TOOL MACHINE - A main shaft structure of a tool machine includes a base, a worktable, a motor fixing seat, a cutter seat, and a cutter wheel unit. The worktable is mounted on the base. The motor fixing seat is connected to one side of the base, and another side is connected with the cutter seat. Two ends of the cutter seat respectively have bearing recesses and first positioning portions close to the bearing recesses. The cutter wheel unit is coupled to the cutter seat. Two ends of the cutter wheel unit are provided with bearing seats which are placed into the bearing recesses. The bearing seats have second positioning portions to connect with the first positioning portions, so that the cutter wheel unit can be detached from the cutter seat quickly. | 10-17-2013 |
| 20130292148 | PORTABLE POWER TOOL WITH IMPROVED BRAKE ASSEMBLY - A portable power tool includes a motor housing and a motor mounted in the motor housing. The motor includes a rotary spindle. The portable power tool also includes a trigger configured to be actuated and released to switch on and off the motor. The portable power tool also includes a mechanical brake assembly connected with the trigger and automatically operated by the trigger. Accordingly, the brake assembly releases the spindle when the trigger is activated and brakes the spindle when the trigger is released. | 11-07-2013 |
| 20140008091 | ROTARY TOOL - A rotary tool includes a first longitudinal member, a second longitudinal member disposed across a region of a rod-shaped brush, a first elastic between the first longitudinal member and the second longitudinal member, and for causing the rod-shaped brush to rotate with a turn of the first longitudinal member, and a turn of the second longitudinal member, and a second elastic between the first longitudinal member and the second longitudinal member, and attached to the first and second longitudinal members. The first elastic is located on one side and the second elastic is located on the other side, regarding a boundary of a first axis or a second axis. | 01-09-2014 |
| 20140116740 | HAND-HELD POWER TOOL DEVICE - A hand-held power tool device includes at least one spindle unit, which is provided in particular for transmitting a drive motion of a drive unit to a tool receptacle, and a locking unit, which is provided in particular for locking the at least one spindle unit in at least one locking state, and which has at least one spindle lock element, which includes at least one entrainment element, and which is provided for at least partially transmitting the drive motion of the drive unit to the at least one spindle unit in at least one operating state. The spindle lock element has at least one clamping surface, which is situated at least partially offset from the at least one entrainment element at least in an axial direction. | 05-01-2014 |
| 20140116741 | PORTABLE POWER TOOL - A power tool is provided with a prime mover which causes the tool to rotate and a housing which houses the prime mover. In a back-end face that is positioned on an opposite side on the housing from a tool side, a back-end groove, into which a user can position his/her web between his/her thumb and forefinger, is formed. A pair of side-face grooves, into which the user can place the thumb and forefinger, are formed in both side faces of the housing. A depth changing portion is formed in at least one of the side-face grooves, such that the depth is reduced toward the back-end face of the housing. According to this structure, even when the housing is gripped directly from the back-end face, the user can easily draw up or raise the power tool. | 05-01-2014 |
| 20140144662 | ACCESSORY CLAMPING MECHANISM AND POWER TOOL HAVING THE SAME - An accessory clamping mechanism for clamping an accessory to a working mandrel having a mandrel flange. The accessory clamping mechanism includes: a fastening flange; a driving device for forcing the fastening flange to move between a released position in which the accessory can be removed between the mandrel flange and the fastening flange and a clamped position in which the accessory is clamped between the mandrel flange and the fastening flange; a pushing member connected to the fastening flange; and a first elastic member by which the fastening flange is biased towards the clamped position; wherein the pushing member is arranged on one side of the working mandrel. | 05-29-2014 |
| 20140166327 | MULTI-FUNCTION TOOL SYSTEM - A power tool head is removably connectable to a power tool handle. The power tool head has an output for performing an operation on a work piece, and a housing having an inner surface defining a main cavity for receiving an interface of the power tool handle. The housing has an outer surface generally opposite the inner surface. The power tool head also has a first opening for selectively receiving a drive shaft for transferring rotation of the drive shaft to the output, the opening defining a central axis. The power tool head also has a pin extending substantially parallel to the central axis for depressing a trigger lock button, and a second opening extending from the inner surface to the outer surface in a direction generally radial with respect to the central axis for receiving a release member. | 06-19-2014 |
| 20140182872 | WOBBLE DRIVE FOR AN OSCILLATING TOOL - An oscillating drive for a power tool includes a wobble shaft located on a drive shaft of a motor for a power tool, and a wobble member rotatably supported on the wobble shaft. The wobble member includes a wobble drive structure that defines a drive axis. A tool driver includes a tool drive structure at one end that is coupled to the wobble drive structure and a tool holder configured to releasably retain an accessory tool. Rotation of the drive shaft causes the wobble shaft to wobble about an axis of the drive shaft. The tool driver holds the wobble member against the rotation of the wobble shaft such that the wobble member wobbles without rotating which results in an oscillating motion of the drive axis of the wobble member in a plane that is parallel to the axis of the drive shaft. The oscillating motion of the drive axis causes the tool driver to oscillate. | 07-03-2014 |
| 20140182873 | TOOL CHUCKING DEVICE - A tool chucking device, in particular an oscillation tool chucking device, includes a tool holder that has a first form locking element and a second form locking element. The form locking elements are provided at least for a form locking connection to a machining tool in a circumferential direction about a rotational machining axis. The form locking elements are mounted rotatably with respect to each other at least relative to a rotational axis that is oriented at least substantially parallel to the rotational machining axis and/or are mounted movably with respect to each other along at least one movement axis that is oriented at least substantially perpendicular relative to an axis that is parallel to the rotational machining axis. | 07-03-2014 |
| 20140345897 | COMPOSITE MATERIALS SPINDLE - A spindle with a composite material spindle housing insert and a composite material spindle shaft insert is disclosed where housing characteristics of the housing insert are calculated to match the spindle characteristics of the spindle shaft to provide optimum spindle performance. | 11-27-2014 |
| 20150075830 | POWER TOOLS - The invention relates to a power tool with a quick-operated locking mechanism. The power tool comprises a housing, an output shaft configured to mount and drive a working head and provided with a carrier extending out of the housing, a fixer configured to fix the working head at the carrier of the output shaft, a locking mechanism configured to lock or release the fixer and a driving mechanism configured to move the locking mechanism between a locking position and a releasing position, while in the locking position, the fixer is clamped fixedly on the output shaft, and while in the releasing position, the fixer is released from the output shaft. The distance between the locking mechanism and the carrier of the output shaft keeps constant in the locking position to prevent slippage of the fixer and ensure the working head firmly fixed. | 03-19-2015 |
| 20150096778 | INSULATION SYSTEM FOR A TOOL, TOOL, AND METHOD FOR MOUNTING THE INSULATION SYSTEM ON THE TOOL - An insulation system for a tool includes a first element configured to electrically insulate an output unit of the tool from a detachably receivable tool element of the tool that is configured to process a workpiece. The insulation system further includes and a second element configured to electrically insulate the output unit toward the outside. A method includes mounting the insulation system on the tool. | 04-09-2015 |
| 20150101836 | HAND-HELD POWER TOOL DEVICE - The invention is based on a hand-held power tool device equipped with a locking device. The locking device is provided for locking an output device and has at least one locking element for supporting at least one radial clamping force. According to a proposed embodiment, the locking element is provided to fasten and/or axially secure at least one component. | 04-16-2015 |
| 20150122526 | Guide Foot for an Oscillating Power Tool - A guide member for an oscillating power tool includes an attachment portion configured to be removably attached to a housing of the power tool and a guide portion that extends from the attachment portion. The guide portion includes a leading edge, a trailing edge, and a guide surface. When the attachment portion is attached to the housing of the power tool, the guide portion is configured to extend beyond the housing in a first direction to position the leading edge portion a predetermined distance apart from the oscillation axis, the predetermined distance being greater than a distance that an accessory tool attached to the power tool extends. | 05-07-2015 |
| 20150129273 | EXTENDIBLE WORKING MACHINE - Problem to be solved: to provide an extendible working machine which is lightweight and which has a rod section capable of being extended longer. Solution: an extendible working machine is provided with a rotation/drive section, a working section, and a rod section which connects the rotation/drive section and the working section, transmits rotational force to the working section, and can be extended and retracted. The rod section is provided with a tube body which can be extended and retracted, and also with a shaft body which extends in the axial direction within the tube body and which can be extended and retracted together with the tube body. The tube body is provided, with an outer tube and with an inner tube which can move within the outer tube. The shaft body is provided with a drive shaft which is supported within the outer tube by bearings in a rotatable manner, and also with a pipe shaft which is supported within the inner tube in a rotatable manner. Helical grooves are formed in the surface of the drive shaft, and the drive shaft is connected to the pipe shaft such that the pipe shaft can move in the axial direction along the outer surface of the drive shaft and such that the rotation of the drive shaft is transmitted to the pipe shaft. | 05-14-2015 |
| 20150306756 | MULTI-FUNCTION TOOL SYSTEM - A power tool having a removable head, a motor, a trigger, and a trigger stop movable between first and second positions. In the second position the trigger is unlocked to permit activation of the motor. A linkage is coupled to the trigger stop and is positioned at a first radial distance from the first central axis. A plurality of actuators extend from the head and are positioned at a second radial distance substantially equal to the first radial distance. When the head is coupled to the handle in a first rotational orientation, one of the plurality of actuators engages the linkage to move the trigger stop to the second position, and when the head is coupled to the handle in a second rotational orientation different from the first rotational orientation, another one of the plurality of actuators engages the linkage to move the trigger stop to the second position. | 10-29-2015 |
| 20150343583 | POWER TOOL ACCESSORY ATTACHMENT SYSTEM - A power tool is provided and may include a motor, an output shaft, a neck portion, and a collar portion. The output shaft may be driven by the motor. The neck portion may be configured to receive a removable attachment accessory. The neck portion may define a first diameter and may include a plurality of indexing features. The collar portion may be supported by the neck portion. The collar portion may include an outer circumferential surface defining a second diameter that is greater than the first diameter. The outer circumferential surface may include at least one recess. | 12-03-2015 |
| 20160039082 | BARRIER MEMBER FOR A HANDHELD TOOL - A portable handheld tool having a power head for powering a lawn maintenance implement is provided. The portable handheld tool may include a brush cutter, a blower, a vacuum, an edger, a polesaw, or the like. The power head includes an engine surrounded by a housing. The housing includes a transition surface having a heat dissipation and/or a heat isolating barrier member extending therefrom for allowing the user to rest their forearm against the barrier member during operation. The barrier member providing a contact surface having localized cooling generated by heat dissipating and/or heat isolation properties of the barrier member. | 02-11-2016 |
| 20160250744 | Hand-held power tool | 09-01-2016 |
