Class / Patent application number | Description | Number of patent applications / Date published |
173104000 | With means for rotating tool | 52 |
20080202781 | DRILLING DEVICE - A drilling device includes an end cutting tool, a main housing, a motor, a transmission, and a dust collection unit. The end cutting tool processes a workpiece. The motor is provided in the main housing for generating a torque. The transmission transmits the torque to rotate the end cutting tool. The dust collection unit collects dust generated by the rotation of the end cutting tool. The dust collection unit includes a dust case for accumulating the dust therein. The dust case is detachable from the main housing and having an inlet and an outlet. The inlet and the outlet are oriented in a single direction. | 08-28-2008 |
20080202782 | Hand-held power tool with a pneumatic percussion mechanism - A pneumatic percussion mechanism for a hand-held power tool includes a percussion piston ( | 08-28-2008 |
20080210448 | HAND POWER TOOL - A hand power tool, in particular a drill hammer and/or chisel hammer, has a housing, a first joining unit, and a switch device that has an actuating unit with a second joining unit corresponding to the first joining unit, the actuating unit being capable of being introduced without tools, by the second joining unit, into the first joining unit in a mounting position. The first joining unit and the second joining unit of the actuating unit are provided to perform protection of the actuating unit against being lost, in an installed state of the actuating unit. | 09-04-2008 |
20080251269 | Rotating Direction Switching Device for a Pneumatic Tool - A rotating direction switching device for a pneumatic tool comprises an air inlet valve and a switch. The air inlet valve is driven to switch the rotating direction of the pneumatic tool by controlling the switch, thus simplifying the operation of switching between the clockwise mode and counterclockwise mode, and facilitating the operation by a single hand. Especially, no matter users who are right hand or left hand dominated could easily operate the pneumatic tool. | 10-16-2008 |
20080277129 | Impact Motorized Wrench - An impact motorized wrench ( | 11-13-2008 |
20090014195 | Rotary Hammer - A rotary hammer includes a housing, a tool holder mounted on a front portion of the housing, and a motor mounted in the housing. The motor includes an armature shaft arranged substantially perpendicular to an axis of rotation of the tool holder and including toothing. A hammer mechanism is driven by the motor to generate impacts on a tool being held by the tool holder. The hammer mechanism includes a first intermediate shaft adjacent and substantially parallel to the armature shaft facing away from the tool holder. A rotation drive mechanism is driven by the motor to rotatingly drive a tool being held by the tool holder. The rotation drive mechanism includes a second intermediate shaft adjacent and substantially parallel to the armature shaft facing the tool holder. The toothing of the armature shaft meshes with corresponding toothing on at least one of the first intermediate shaft and the second intermediate shaft. A chain drive couples the first intermediate shaft to the second intermediate shaft so that the first and second intermediate shafts are driven together by the armature shaft. | 01-15-2009 |
20090038815 | POWER HAND TOOL - A power hand tool is disclosed to include a Li-battery set, an electric power storage device electrically connected in parallel to the Li-battery set, a motor, a power switch electrically connected between the motor and the electric power storage device and operable to switch on/off electric connection between the motor and the electric power storage device, a speed reducing gear set coupled to the output shaft of the motor, and an impact mechanism movable in a predetermined direction by the speed reducing gear set. When the power switch is switched on to electrically connect the electric power storage device to the motor, the motor is started to rotate the output shaft and the speed reducing gear set, causing the speed reducing gear set to move the impact mechanism and to further provide an impact force. | 02-12-2009 |
20090084568 | Impact power tool - An impact power tool includes an impact mechanism for applying a striking impact to an output shaft by using an output power of a motor. A strike detection unit detects the striking impact applied by the impact mechanism to obtain a striking timing and a striking speed detection unit calculates a striking speed from the striking timing obtained by the strike detection unit and a rotation angle of the motor obtained by a rotation angle detection unit. A control unit counts the number of striking impact detected by the strike detection unit and stops the motor if the number of striking impact reaches a predetermined strike number. The control unit is designed to correct the predetermined strike number when the striking speed obtained in the striking speed detection unit is equal to or lower than a specified striking speed. | 04-02-2009 |
20090133889 | Hand-held power tool having auxiliary handle with clamping band - A hand-held power tool includes a locking flange ( | 05-28-2009 |
20090188688 | CONTROL MECHANISM FOR A POWER TOOL - A speed adjustment mechanism for a power tool is disclosed. The mechanism includes a support, a first toothed gear for rotation by means of an adjustment dial, and a second toothed gear rotatable by means of the first toothed gear and connected to a potentiometer which is connected to a speed control circuit. Limited movement of the first and second toothed gears relative to each other is possible to reduce transmission of impacts from the adjustment dial to the speed control circuit. | 07-30-2009 |
20090255700 | DISCONTINUOUS DRIVE TOOL ASSEMBLY AND METHOD FOR DETECTING THE ROTATIONAL ANGLE THEREOF - A discontinuous drive power tool assembly for generating rotational torque includes a spindle having a first end portion and a second end portion. The first end portion of the spindle is configured to engage and rotate an object. The tool assembly also includes a pulse hammer selectively engagable with the second end portion of the spindle, and a motor that includes a motor shaft engagable with the pulse hammer. The motor is configured to rotate the pulse hammer. The tool assembly also includes a rotational position sensor disposed adjacent the motor. The rotational position sensor is configured to measure the rotational position of a second portion of the motor shaft which is opposite the first end portion of the motor shaft during operation of the tool assembly. | 10-15-2009 |
20110036606 | MOTOR ASSEMBLY FOR PNEUMATIC TOOL - A pneumatic impact wrench includes a handle assembly graspable by a user, a work attachment connected to the handle assembly, an inlet permitting air flow to drive the impact wrench, an outlet permitting air flow out of the impact wrench, a motor assembly positioned between the inlet and the outlet includes a rotor driven by the air flow between the inlet and the outlet. The motor assembly defines a longitudinal motor axis about which the rotor rotates. An output drive is connected to the motor assembly to selectively rotate in response to rotation of the rotor, the output drive defines a longitudinal output axis about which the output drive rotates, the longitudinal output axis is substantially perpendicular to the longitudinal motor axis, and an impact mechanism is positioned between the motor assembly and the output drive to selectively drive the output drive in response to rotation of the rotor. | 02-17-2011 |
20110100659 | PILE DRIVER - A pile driver enables angle adjustment and pile core adjustment of a leader to be performed easily, by minimizing an angle change of the leader when the pile core adjustment is performed. In the pile driver, an upper part of the leader is supported by a leader erect cylinder from behind, and a lower part of the leader is supported by a forward and backward adjustment means that includes a leader arm having a rotation base rotatably attached to a base machine and a rotation end rotatably attached to the lower part of the leader. A first arc traced by the rotation end when the leader arm is rotated to adjust the lower part of the leader forward and backward and a second arc traced by a connection part between the leader and a tip of the leader erect cylinder when the lower part of the leader is adjusted are both convex upward. The first arc has a smaller radius than the second arc. An end of the first arc and an end of the second arc when the lower part of the leader is adjusted farthest backward are each at a highest position. In addition, a straight line passing through both end points of the second arc is parallel to a tangent line at a center part of the first arc. | 05-05-2011 |
20110240322 | ROCK DRILLING MACHINE AND AXIAL BEARING MODULE - A rock drilling machine equipped with an axial bearing having at least one axial piston for setting the axial position of a drill shank and for damping stress pulses returning from the rock. The axial bearing includes a module that is detachable in one piece from one installation direction. The axial bearing module includes all necessary seals, bearing surfaces, and a module frame. Supporting forces caused by the operation of the axial bearing are transmitted of support members in the module frame directly to the body of the rock drilling machine, which is a uniform piece at least at the axial bearing. | 10-06-2011 |
20120006573 | OIL PULSE ROTARY TOOL - An oil pulse rotary tool includes a motor, a speed reduction mechanism to which rotation is transmitted from the motor, and an oil pulse generator disposed in front of and coaxially with the speed reduction mechanism. The motor, the speed reduction mechanism, and the oil pulse generator are housed in a housing. A carrier portion is provided coaxially with the oil pulse generator to project from a rear portion of the oil pulse generator. Support shafts that support planetary gears provided in the speed reduction mechanism are fixed to the carrier portion. A bearing is provided between the planetary gears and the oil pulse generator to support the carrier portion. | 01-12-2012 |
20120111594 | HAND-HELD POWER TOOL - In a hand-held power tool having a housing and a tool holder, which is disposed on a drive shaft that is rotationally mounted in at least one first and one second ball bearing, the first ball bearing having a first inner ring and the second ball bearing having a second inner ring, a spring element is disposed between the first inner ring and the second inner ring in order to prestress the first ball bearing with respect to the second ball bearing. | 05-10-2012 |
20120168191 | HAND-HELD POWER TOOL - A hand-held power tool, in particular an impact drill driver, has a gearbox assemblage, a hammer impact mechanism, and a tool spindle. The hammer impact mechanism includes a striker that at least partly surrounds the tool spindle in at least one plane. | 07-05-2012 |
20120193115 | TOOL HOLDER FOR A ROTARY HAMMER - A tool holder for a hand-guided drilling device, in particular for a rotary hammer, includes a receiving sleeve that is designed as a single piece and that is drivable in a rotating manner for a shank part of an insertion tool. The recess is open at both end faces and limited therebetween by an inner circumferential surface of the receiving sleeve. The inner circumferential surface ( | 08-02-2012 |
20120193116 | Transmission device - The invention relates to a gearbox device, in particular, for a hammer drill or chisel, with a torque transmission mechanism, which has a first torque transmitting region for transmission of a torque to a first component and at least one second torque transmitting region for transmitting a torque to a second component. According to the invention, the first torque transmitting region and the second torque transmitting region at least partly have a corresponding partial contour for transmitting the torques. | 08-02-2012 |
20120261150 | POWER TOOL - Disclosed is a striking tool technology that contributes to reducing clutch sizes. The striking tool causes a tool bit to perform a striking operation in the long axis direction and to perform a rotational operation about the long axis, thereby causing the tool bit to carry out a predetermined machining operation. The striking tool comprises a tool body; a motor which is housed in the tool body and drives the tool bit; and a clutch which, on a route where the torque of the motor is transmitted to the tool bit, is disposed in a high rotational speed and low torque region that is a stage prior to where the rotational speed of the motor is reduced, which transmits the torque of the motor to the tool bit in a normal state, and which cuts off the transmission of torque generated about the tool bit long axis in the tool body if the torque exceeds a predetermined torque level. | 10-18-2012 |
20120292066 | PNEUMATIC TOOL HAVING PENDULUM-LIKE DIRECTION SWITCHING MECHANISM - The pneumatic tool having pendulum-like direction switching mechanism of the present invention includes a pneumatic motor and a control valve. The control valve is utilized for receiving pressurized air and for alternatively leading air into the pneumatic motor to drive and control the pneumatic motor. The present invention further includes a switching device and a coupling mechanism. By connection of the coupling mechanism, the switching device is able to control motion of the valve. In addition, the switching device slides along an arc-shaped route. Thus, the switching device approaches the pneumatic tool without protruding excessively. Therefore, unexpected collision is lessened and lifetime is prolonged. | 11-22-2012 |
20130153253 | ROTARY HAMMER - A rotary hammer includes a motor, a spindle coupled to the motor for receiving torque from the motor, a piston at least partially received within the spindle for reciprocation therein, a striker received within the spindle for reciprocation in response to reciprocation of the piston, and an anvil received within the spindle and positioned between the striker and a tool bit. The rotary hammer also includes a retainer received within the spindle for selectively securing the striker in an idle position in which it is inhibited from reciprocating within the spindle, and an O-ring positioned between the retainer and the spindle. The O-ring is disposed around an outer peripheral surface of the anvil. The O-ring is compressible in response to the striker assuming the idle position. The compressed O-ring imparts a frictional force on the outer peripheral surface of the anvil to decelerate the anvil. | 06-20-2013 |
20130299206 | HAMMER MECHANISM - A hammer mechanism has a clamping chuck and a snap die provided for the direct striking of an inserted tool. The snap die includes a coupling element for transmitting a rotary motion to the clamping chuck. | 11-14-2013 |
20140290973 | PNEUMATIC TOOL HAVING A ROTATABLE OUTPUT SHAFT - a pneumatic tool includes a plastic tool body, a metal front hood connected to and disposed in front of the plastic tool body so as to define an accommodating space therebetween, and an air motor disposed within the accommodating space. The air motor includes a front bearing unit and a rear bearing unit disposed behind the front bearing unit. At least one of the front and rear bearing units is connected fixedly to the metal front hood. The air motor further includes a cylinder body disposed between the front and rear bearing units and connected integrally to the one of the front and rear bearing units, and a rotor disposed rotatably within the cylinder body. | 10-02-2014 |
20140318821 | ROTARY HAMMER - A rotary power tool includes a housing, a spindle defining a working axis, and a motor supported by the housing. The motor is operable to drive the spindle. The rotary power tool also includes a handle movably coupled to the housing and a vibration isolating assembly disposed between the housing and the handle. The vibration isolating assembly attenuates vibration transmitted from the housing to the handle. A battery pack is removably coupled directly to the handle and configured to provide power to the motor. | 10-30-2014 |
20140338946 | Handheld tool apparatus - A handheld tool apparatus comprising a spindle blocking apparatus and a torque limiting unit that includes at least one limiting spring and a stop arrangement that is supported movably against the limiting spring. It is provided that the stop arrangement of the torque limiting unit nonrotatably secure a wedging arrangement of the spindle blocking apparatus. | 11-20-2014 |
20150014011 | Power Tool - A power tool comprises a housing having at least two housing parts and at least one recess, a portion of the recess provided by each housing part, and a bearing located in the recess. The power tool includes a seal comprising an elongate seal member located between the housing parts to seal at least a portion of the housing. The seal includes at least one polymeric extension part extending from the elongate seal member and in contact with an external part of the bearing without extending around the bearing. The polymeric extension part of the seal prevents the external part of the bearing from rotating with respect to the housing during use of the power tool. | 01-15-2015 |
20150041170 | Impact Tool - An impact tool performs a processing operation on a workpiece by carrying out an impact operation on a tool bit in a longitudinal axis direction. The impact tool includes a motor having a rotor and a stator, a tool main body housing the motor, a drive shaft parallel to a longitudinal axis of the tool bit and rotatably driven by the motor, and an oscillating member that is supported by the drive shaft and that carries out an oscillating movement in the axial direction of the drive shaft based on the rotational motion of the drive shaft. A tool drive mechanism is coupled to the oscillating member so that the oscillating movement of the oscillating member linearly moves the tool bit in the longitudinal axis direction. The motor is an outer rotor motor in which the rotor is disposed on an radially outer side of the stator. | 02-12-2015 |
20150053448 | BRANDING OVERMOLD BUMPER - Provided is a power tool including a housing body having a first side and a second side and housing a motor and has an overmold bumper formed on at least the first side of the housing body protruding outwardly from the first side of the housing body such that an outer surface of the overmold bumper defines an outermost point of the power tool in a direction orthogonal to a motor axis of the power tool. The overmold bumper has a longitudinal span of at least 60% of a total length of the housing body in a direction along the motor axis, is formed of an elastomeric material and includes raised indicia. | 02-26-2015 |
20150144366 | POWER TOOL - A hammer drill ( | 05-28-2015 |
20150328764 | POWER TOOL - A power tool includes a motor which drives a tool bit, a tool body, a handle, and battery mount part, to which battery is detachably mounted. The power tool includes a plurality of battery mount parts, and the battery mount part, includes a battery engaging part with which the battery, can engage. The battery is mounted to the battery mount part by sliding against the battery engaging part in a crossing direction which crosses the longitudinal direction of the tool bit. | 11-19-2015 |
173105000 | Rotated by separate motor | 4 |
20090159305 | Hydraulic Rotary Percussive Device of the Drill Type - The invention relates to a hydraulic rotary percussive device of the drill type, intended for drilling boreholes, comprising: a striking mechanism equipped with a piston which is able to move translationally along a striking axis and is intended to strike a tool; a hydraulic motor which rotates the tool about an axis of rotation, the axis of rotation of the motor being substantially coincident with the striking axis of the piston, wherein it comprises a support-forming casing, the striking mechanism being hydraulic and having a longitudinal body rotatably mounted in the casing about the axis of the body, the body being rotated directly by the motor and coupled to the tool. | 06-25-2009 |
20100116518 | COUPLING ARRANGEMENT FOR COUPLING ROCK DRILL SHANK - The invention relates to a coupling arrangement for coupling a drill shank of a rock drill unrotatably but axially movably. The coupling arrangement comprises power transmission members between the surfaces of the drill shank and the rotation bushing, which transmission members rotate along the surfaces, as the drill shank moves longitudinally to the rotation bushing, and transmit the rotation torque from the rotation bushing to the drill shank. | 05-13-2010 |
20140367133 | HYDRAULIC ROTATOR CONVERTER FOR A HYDRAULIC IMPACT HAMMER AND METHOD - A hydraulic rotator converter for attachment to a hydraulic impact hammer having a hammer housing and a hydraulic piston. The converter has mounting brackets, a rotator housing, posts attached to the rotator housing and attachable to the mounting brackets, a hydraulic rotator assembly including a hydraulic rotator, a rotator wheel driven by the hydraulic rotator, and a rotator plate connected to the rotator wheel, the rotator plate having a central cutout region formed therein, and a rotator drill bit dimensioned to pass through a central cutout region of the rotator plate and to engage with the central cutout region so as to be rotatable by the rotator wheel while allowing the rotator drill bit to move in an axis perpendicular to a longitudinal axis of the drill bit. | 12-18-2014 |
20150129269 | IMPACT DEVICE AND METHOD OF DISMOUNTING THE SAME - An impact device and a method of dismounting an impact device from a breaking device is disclosed. The impact device includes a bush having a percussion piston disposed therein. The impact device is arranged inside an impact device space formed in a frame of a breaking device. The percussion piston is provided with a pull shoulder allowing a dismounting force in a return direction to be transmitted from the percussion piston to the bush. Thus, the bush is extracted from the frame by means of the percussion piston. | 05-14-2015 |
173109000 | Rotated by hammer head or drive for hammer head | 17 |
20080271905 | Hammer drill - The object is to provide a hammer drill having an elastic means without using a coil spring or the like on an intermediate spindle, and being capable of compacting a housing and decreasing cost. | 11-06-2008 |
20090008114 | Hand-Held Power Tool with a Percussion Unit - The invention is based on a power hand tool, in particular a hammer drill and/or hammer chisel, with a percussion unit ( | 01-08-2009 |
20090038816 | IMPACT WRENCH - An impact mechanism includes a shaft, a hammer and an anvil coupled to the hammer. The shaft has a first helical groove and the hammer has a second helical groove. A ball is received in the first and second helical grooves to rotationally couple the hammer to the shaft and permit axial travel of the hammer relative to the shaft. An axial stop inhibits axial travel of the hammer along a first travel path and permits axial travel of the hammer along a second travel path. The axial stop includes first and second stop members, the first and second stop members having a first relative position to inhibit axial travel of the hammer and a second relative position to permit axial travel of the hammer. | 02-12-2009 |
20090145619 | PERCUSSION MECHANISM FOR A REPETITIVELY HAMMERING HAND POWER TOOL - A percussion mechanism for a repetitively hammering hand power tool in the form of a rotary hammer has a striker movable axially forward and backward in a guide barrel and imparting impacts directly and without any intermediate parts to an end section of a tool bit that is insertable into the hand power tool, a device that exerts pressure on the striker, by which the striker is capable of being set into a forward motion in the direction of the tool bit, a blocking element, with which the striker is blockable in its forward motion, and the striking frequency of the striker is adjustable by controlling the blocking time of the blocking element, so that the striking frequency of the striker depends on how long the blocking element blocks the forward motion of the striker. | 06-11-2009 |
20100132968 | ELECTRIC TOOL - An electrical tool ( | 06-03-2010 |
20100270046 | SWASH DRIVE OF A HAND-HELD POWER TOOL - The invention relates to a wobble drive of a hand-held machine tool, particularly a drilling or chipping hammer, having a drive shaft, a wobble bearing disposed on the drive shaft, and a wobble plate supported on the wobble bearing. At least two wobble fingers having wobble finger axes being provided on the wobble plate. The invention provides that the axes of the wobble fingers form an angle different from 180°. | 10-28-2010 |
20110114348 | MULTI-GEAR TRANSMISSION DEVICE AND POWER TOOL - The invention relates to a multi-gear transmission device, particularly a two-gear transmission device, for transferring a drive torque from an input side to an output side, which transmission device has at least two selectable gear ratios. The multi-gear transmission device further has a multi-stage clutch device, particularly a two-stage clutch device, with at least two different, selectable limit torques. According to the invention, the multi-stage transmission device has at least two preferably switchable translating gear pairs, and the multi-stage clutch device is included in the translating gear pairs. | 05-19-2011 |
20110284255 | ELECTRIC BORING TOOL - An electric boring tool comprises an electric motor, a switch trigger, a tip tool driven by driving force of the electric motor, a power transmission mechanism for transmitting the driving force of the electric motor to the tip tool as rotational force and/or hammer force, and a motor control unit for controlling speed of the electric motor in response to an extent of pulling of the switch trigger. The motor control unit subjects the electric motor to low speed control after the electric motor is started up, and controls the speed of the electric motor in response to the extent of pulling of the switch trigger when the load current of the electric motor is set value or greater during the low speed control. | 11-24-2011 |
20120318549 | IMPACT TOOL - In an impact tool, a hammer case into which an output shaft of a motor is inserted is assembled to the front of a housing containing a stator core. In the hammer case, a spindle to which rotation is transmitted from the output shaft of the motor is provided. The rear end of the hammer case is coupled with a bearing box. In the housing, a partition wall through which the output shaft passes is provided between the stator core side and the hammer case side. On the housing, an air inlet is provided. An electric circuit board is provided on the front face of the stator core to close the front face with the output shaft passing therethrough. Between the electric circuit board and the partition wall, a waterproof member through which the output shaft passes is provided to close the gap therebetween. | 12-20-2012 |
20130133910 | ELECTRIC DRIVE FOR A HAND-HELD POWER TOOL - An electric drive for a hand-held power tool. An electric supply line contains two or more stranded wires. An electric motor is electrically connected to the stranded wires. The stranded wires pass at least twice through the eye of a toroidal core. A partition divides the eye into several sectors. Precisely one of the stranded wires passes through each of the sectors. The stranded wires are arranged along the circumference of the eye so as to follow each other cyclically. | 05-30-2013 |
20130213682 | Swash Drive of a Hand-Held Power Tool - The invention relates to a swash drive ( | 08-22-2013 |
20130319708 | HAMMER MECHANISM - A hammer mechanism is provided, which has at least one impact-generation unit which includes a strike element, a clamping chuck drive shaft mounting the strike element in movable manner in the strike direction in at least one operating state, and a coupling unit which is connected to the clamping chuck drive shaft in torsionally fixed manner and provided to drive the impact-generation unit. | 12-05-2013 |
20130319709 | HAMMER MECHANISM - A hammer mechanism having at least one impact-generation unit and a clamping chuck drive shaft is provided. The impact-generation unit includes a spur-gear transmission stage for translating a rotational speed of the clamping chuck drive shaft into a higher rotational speed for impact generation. | 12-05-2013 |
20140360744 | HANDHELD PNEUMATIC TOOLS HAVING PRESSURE REGULATOR - A handheld pneumatic tool includes an air supply port and a pressure regulator. The pressure regulator is configured to regulate the pressurized air and discharge regulated, pressurized air at a substantially constant pressure. | 12-11-2014 |
20160023346 | Range of Power Tools - A range of power tools each includes motor and transmission housings with an electric motor and a transmission mechanism mounted respectively therein, with the transmission mechanism using the rotary output of the motor to drive a cutting tool. An intermediate housing is sandwiched between the motor and transmission housings. Each of the motor housings is the same in shape, and the length of the electric motors in each of the power tool is different to the length of the electric motors in the other power tools in the range. The transmission housing is positioned differently relative to the motor housing in each power tool to accommodate the difference in length in the electric motor in that power tool, the shape of the intermediate housing in each power tool varying relative to the other intermediate housings to accommodate the difference positions of the transmission housings relative to the motor housings. | 01-28-2016 |
20160151904 | IMPACT TOOL | 06-02-2016 |
173110000 | Rotation is intermittent or oscillatory | 1 |
20110226500 | IMPACT TOOL - In an upper surface of a crank housing is provided an inlet for grease which is configured to be openable and closable by a cap. A vibration damping mechanism, which includes a counterweight provided with a connecting pin loosely fitted in a connecting hole of an eccentric pin when the cap is attached, is mounted in the cap, whereby the vibration damping mechanism is allowed to be taken in and out of the crank housing through the inlet by attachment and detachment of the cap to and from the inlet. | 09-22-2011 |