2274results about "Portable percussive tools" patented technology

A powered fastener driver includes a housing, a nosepiece, a driver blade movable within the nosepiece between a ready position and a driven position, a piston coupled to the driver blade, a driver cylinder within which the piston is movable, a storage chamber cylinder containing pressurized gas therein and in fluid communication with the driver cylinder, a lifting mechanism for moving the driver blade to the ready position, and a motor coupled to the lifting mechanism to drive the lifting mechanism. An onboard air compressor is driven by the motor and is driven while the lifting mechanism is driven. A feed system is in fluid communication with the onboard air compressor and includes a primary feed mechanism adjacent the nosepiece and a secondary feed mechanism adjacent the nosepiece. The primary feed mechanism and the secondary feed mechanism are actuated by compressed air received from the onboard air compressor.

A power tool system including a power tool base having a main body, an electric including an output, and a tool-side attachment mechanism coupled to the main body, the tool-side attachment mechanism having a tool-side locking lug and a tool-side slot adjacent the tool side locking lug. An accessory is configured to be selectively coupled to the power tool base and includes an accessory-side attachment mechanism having an accessory-side locking lug and an accessory-side slot, the accessory-side locking lug selectively engagable with the tool side slot and the accessory-side slot selectively engagable with the tool-side locking lug, a gear arrangement configured to be operably coupled to the output of the electric motor to receive torque from the electric motor, and a tool holder configured to be driven by the gear arrangement. The accessory-side attachment mechanism selectively engages the tool-side attachment mechanism to axially couple the accessory to the power tool base.

A dust collecting attachment includes a dust suction portion and a main body. The main body has a dust collection passage communicated with the dust suction portion. The dust suction portion has a negative pressure by exerting a suction force to the dust collection passage from a hose. The dust suction portion includes an inner pipe through which a tip tool passes, a first dust suction flow passage, and a second dust suction flow passage. The first dust suction flow passage opens a first suction opening to a side of a workpiece in an outside in a radial direction of the inner pipe and is communicated with the dust collection passage. The second dust suction flow passage opens a second suction opening to an opposite side of the workpiece in the outside in the radial direction of the inner pipe and is communicated with the dust collection passage.

A driver-drill (1) includes a motor (6) having a stator (61) and a rotor (62); an output part (8) including: a spindle (81), which is disposed more forward than the motor and, in response to application of a rotational force transmitted from the rotor, is rotated around a rotational axis (AX) extending in the front-rear direction; and a chuck (82), which is mounted on the spindle; and a speed-reducing mechanism (30), which is configured to rotate the output part at a rotational speed that is lower than the rotational speed of the rotor but at a higher torque. The maximum fastening torque of the output part is 160 N·m or more.

A driver drill may include: a motor; an output part provided forward of the motor and driven by the motor; a speed reduction mechanism disposed between the motor and the output part; a motor bracket disposed between the motor and the speed reduction mechanism; a housing that houses the motor and the motor bracket; an element provided above the motor or the speed reduction mechanism; and a lead wire connected to the element and extending more downward than the motor or the speed reduction mechanism. The lead wire may be sandwiched between the housing and the motor bracket.

Disclosed herein is a power tool comprising a motor, a drive shaft connected to the motor, a front end defining a cavity comprising a tool side end and a free end, and a coupling mechanism for releasably connecting a removable tool head to the drive shaft. The coupling mechanism comprising two sleeves, a first and a second biasing element and at least one ball that together either put the coupling mechanism in an open position ready to receive the removable tool head or into a closed position upon manual dislocation of the inner sleeve during insertion of another tool head, so that the at least one ball can glide into at least a partial engagement with a recess on the removable tool head and is locked there via the inner projection of the outer sleeve, which outer sleeve is held in position by the first biasing element.

An impact tool includes: a motor; a motor housing portion that houses the motor; a grip portion extending downward from the motor housing portion; a hammer rotated by the motor; an anvil that is impacted by the hammer in a rotation direction; a hammer housing portion that houses the hammer; a prop portion arranged on a front side of the grip portion and extending below the motor housing portion or the hammer housing portion; a battery holding portion which is connected to the grip portion and the prop portion and to which a battery pack is detachably attached; and a light emitter unit that is held at a front portion of the hammer housing portion and includes a plurality of light emitters arranged in the rotation direction around the anvil. A lead wire electrically connected to the light emitter unit passes through an inside of the prop portion.

An impact power tool includes a housing, a motor, a controller, an impact mechanism configured to be driven by the motor, and an output spindle configured to receive rotational impacts from the impact mechanism to rotate the output spindle. The controller is configured to detect a first impact of the rotational impacts or to detect when the motor speed drops below a speed threshold value. The controller is configured to control the motor to have a first non-zero target rotational speed using closed loop control for a predetermined time period after the first impact is detected or when the motor speed dropping below the speed threshold value is detected. The controller is configured to control the motor to have a second non-zero target rotational speed using the closed loop control after the predetermined time period. The first non-zero target rotational speed is less than the second non-zero target rotational speed.

Power tool devices described herein include a motor, an actuator configured to be actuated by a user, a plurality of power switching elements configured to drive the motor, a gate driver coupled to the plurality of power switching elements and configured to control the plurality of power switching elements, a first printed circuit board (PCB), an antenna, and a combined chip. The combined chip is located on the first PCB and is coupled to the actuator, the antenna, and the gate driver. The combined chip includes a memory and an electronic processor configured to determine that the actuator has been actuated, and provide, in response to determining that the actuator has been actuated, a signal to the gate driver, control the signal based on the motor position information, wirelessly transmit power tool device information to an external device, and wirelessly receive configuration information from the external device via the antenna.

A power tool comprises a housing and an inner assembly mounted at least partially within the housing and configured to move between a first position and a second position with respect to the housing. The inner assembly comprises a motor assembly. The power tool also comprises a mounting frame for guiding the inner assembly between the first position and the second position and having a cable guide for guiding at least part of a cable connected between the motor assembly and a component fixed relative to the housing.

Disclosed herein are surgical impact tools and methods of use thereof. The surgical impact tools can include a roller assembly, an impact structure, and a tool holder. The roller assembly can be connected to a motor and include a plurality of rollers supported by a respective roller arm. The impact structure can define a spring and an impact cavity including forward and reverse impact surfaces. The impact structure can include a wall comprising a plurality of thread elements connected to the wall and engageable with the roller assembly. Each of the thread elements can include a pair of helical end surfaces and a pair of axially extending surfaces that are engaged by the plurality of rollers. During use rotation of the roller assembly against the helical ends of the thread elements can cause axial movement of the impact structure to apply a load on the spring and generate impact forces.

An impacting apparatus comprises a motor to actuate a spring striker assembly that includes a gas spring piston that is coupled to a striker. After a sufficient movement of the piston, the piston commences movement and accelerates the spring striker assembly to impact a substrate or object. The motor is coupled to the spring striker assembly through an interrupted drive mechanism such as a chain and sprockets configuration for providing for continuous impacting / driving. The drive mechanism alternatively actuates the piston of the spring striker assembly and decouples from the spring striker assembly to allow pressure or other force to act on the spring piston. The gas spring is replaceable and becomes slightly energized when installed in the apparatus by a gas spring preload means.

The present invention discloses an impact mechanism for a rotary impact tool, comprising: a centering component; a gear frame, which is suitable for receiving a rotational force from a motor and includes a gear frame aperture suitable for accommodating the centering component; an anvil, which is rotatable around a central axis and includes an impact section and an anvil aperture suitable for accommodating the centering component; and a hammer, which is slidably connected to the gear frame, rotatable around a central axis and defines a flat surface, the hammer including a lug extending from the flat surface. The centering component serves as a guide between the gear frame and the anvil. The centering component may include an axial hole. Axial clearance and a sliding fit may be provided between the gear frame and the centering component and between the anvil and the pin to allow the hollow pin to move axially.

A surgical impact tool and method of use are disclosed. The surgical impact tool may include a roller assembly, an impact structure, and a tool holder. The roller assembly includes a plurality of rollers connected to a motor and supported by respective roller arms. The impact structure may define a spring and an impact cavity including a front impact face and a rear impact face. The impact structure may include a wall with a plurality of thread elements connected to the wall and engageable with the roller assembly. Each of the thread elements may include a pair of helical end faces and a pair of axially extending faces that engage the plurality of rollers. In use, rotation of the roller assembly relative to the helical ends of the thread elements may axially move the impact structure to load the springs and generate an impact force.

A power-driven impact tool is provided. The impact tool includes a motor, a transmission, and a rotary impact mechanism received in a housing. The transmission may be a planetary transmission that reduces a speed of a rotary force output by the motor. The impact tool may be a cordless impact tool, receiving power from a battery back that is removably coupled in a battery receptacle of the housing. First and second handles on the housing may provide for user stability and control during operation of the impact tool. A plurality of user selection devices, including a trigger, a forward / reverse switch, and a mode selector, may be provided on one of the handles for user control of the impact tool.

A dust remover comprises: a nozzle; a dust remover shell; a dust tube coupled to the nozzle and slidable relative to the dust collector housing between an extended position and a retracted position; and a dust collection container selectively coupled to the dust collector housing. The conveying pipe is configured to guide air from the dust collecting pipe to the dust collecting container, the dust collecting pipe comprises an open hole part and a cover, the open hole part is aligned with the conveying pipe, and the cover is slidably connected to the dust collecting pipe to selectively close the open hole part.

A self-suction dust collection attachment including a dust collection motor and a fan can be mechanically coupled and electrically connected to multiple types of power tools. A dust collection attachment attachable to a first power tool includes a casing, a suction portion, a dust collector that captures dust sucked through the suction portion, a fan that generates a suction force in the suction portion, a dust collection motor that rotates the fan, and an adapter attachable to at least a second power tool and detachably attachable to the casing. The adapter includes a mechanical coupler that couples the casing and the second power tool and an electrical connector that electrically connects the dust collection attachment and the second power tool when the dust collection attachment is coupled to the second power tool.

The utility model relates to the field of percussion drills, and particularly provides a percussion drill convenient to switch modes. The percussion drill comprises a percussion drill body, a driven assembly and a telescopic assembly, the telescopic assembly comprises a telescopic column, the left end of the telescopic column is fixedly connected to the output end of the right side of the percussion drill body, the right end of the telescopic column is sleeved with a drill bit, and a driven disc is located on the right side of the drill bit. The technical problems that a flat-head drill bit or a cross-shaped drill bit of an existing percussion drill needs to be disassembled, assembled and replaced, drilling work is often high in repeatability, frequent disassembly, assembly and replacement of the drill bit are troublesome, efficiency is affected, the connecting position of a transmission structure of the percussion drill and the drill bit is prone to being abraded, and convenience is not achieved are solved. And abrasion of the joint of the output end of the percussion drill body caused by repeated disassembly is avoided, and the percussion drill is simple and stable in overall structure, convenient to use and good in practicability.

A rotary hammer includes a housing and a tool receptacle extending from a first end of the housing. A dust box is coupled to the housing and a motor is positioned within the housing. The motor defines a motor axis. A drive assembly is rotated by the motor about a working axis. The drive assembly is arranged relative to the motor so that the motor axis is at an oblique angle relative to the working axis.

An impact tool having a split anvil assembly includes an internal anvil portion fixed inside a housing of the impact tool and an external anvil portion that is removably attached to the internal anvil portion and extends outside of the housing. The external anvil portion includes a retractable pin biased to an extended position to engage the internal anvil portion to secure the external anvil portion to the internal anvil portion and depressed to a retracted position to permit the external anvil portion to be disengaged from the internal anvil portion. The internal anvil portion and the external anvil portion may include respective internal and external grooves that interconnect with each other to link the movement of the internal anvil portion to the external anvil portion.

This invention discloses a pneumatic rust remover, comprising a gun-shaped body with a trigger and an on / off valve assembly mounted on the handle, and a cylinder. The gun-shaped body has a cylindrical cavity formed in its barrel section. The cylinder is installed in a cylinder sleeve and, together with the cylinder sleeve, piston, valve seat front cover, and valve seat rear cover, forms an impact assembly. A vibration damping and buffering assembly is installed inside the cylindrical cavity of the gun-shaped body. The vibration damping and buffering assembly consists of a connecting sleeve, an impact isolator, and a cylinder buffer pad. The cylinder buffer pad is press-fitted between the bottom of the cylindrical cavity and the rear end face of the connecting sleeve. The impact isolator is press-fitted onto the front annular surface of the connecting sleeve via a locking nut, and the locking nut is screw-fitted to the cavity opening of the cylindrical cavity. The rear end of the cylinder sleeve passes through the locking nut and extends into the sleeve cavity of the connecting sleeve, where it is screw-connected. An air inlet valve assembly is provided inside the sleeve cavity. This invention offers a comfortable grip, high rust removal efficiency, good shock absorption, and is adaptable to rust removal tools with different functions.

An angle fastening tool includes a handle extending in a front-to-back direction, a motor housing located in front of the handle, a motor located inside the motor housing, a spindle located in front of the motor, extending in a direction crossing the front-to-back direction, and rotated by the motor, a housing that houses the spindle, a tool accessory holder projecting downward from a lower surface of the housing and rotated by the spindle, and a trigger lever provided to project downward from a lower surface of the handle. A lower end of the trigger lever is located at a position closer to a lower surface of the motor housing than to a lower end of the tool accessory holder in an up-down direction.

A percussion tool includes a housing, a percussion mechanism including a striker supported for reciprocation in the housing along a first axis, and an anti-vibration system for attenuating vibration in a direction of the first axis. The anti-vibration system includes a linkage coupling the percussion mechanism to the housing. The linkage permits relative movement between the housing and the percussion mechanism along the first axis. The anti-vibration system also includes a counterweight supported by the percussion mechanism for relative movement therewith along a second axis that is parallel with the first axis. The counterweight reciprocates out of phase with the striker to attenuate vibration in the direction of the first axis.

The invention relates to a hammer (10) and a method for operating a hammer (10). The hammer comprises a housing (12), a striking piston (26) which is linearly movable along an axis (a) in the housing (12), and a spring element (30) which can be pre-tensioned along the axis in a pre-tension direction and which is supported on one side against the housing (12) and on the other side against the striking piston (26). The hammer also comprises a coupling element (28) which can be connected to the striking piston (26) by frictional or positive locking and which is linearly movable in the housing (12), and a linear drive which drives the coupling element (28) along the axis (a), wherein the coupling element (28) is configured to release the striking piston (26) when a pre-tension threshold is exceeded.

A hydraulic hammer includes: a cylinder having a first cylinder end and a second cylinder end opposite the first cylinder end; a piston disposed within the cylinder, the piston having a first piston end, the piston being reciprocatingly movable with respect to the cylinder along an axial direction; a valve body disposed on the first cylinder end so as to define a valve body cavity; and a seal carrier sealingly arranged between the first piston end and the first cylinder end and being reciprocatingly movable with respect to the cylinder along the axial direction. The piston is reciprocatingly movable with respect to the seal carrier along the axial direction.

A cam operated apparatus with a cam track (16) and cam follower (12) being engaged with one another, a head element such as a bit operatively connected to the cam track or cam follower means, and rotational drive means such as a motor operatively connected to the other, such that rotational drive causes reciprocal action of the head element and the width (A) of the cam follower means (12) is in the region of 91% to 99%, of the width (B) of the cam track (16), to create a harmonic effect on the head element with low noise and increased power efficiency. Pin-in-wave and wave-in-wave arrangements are described along with tools including the cam operated apparatus.

Some aspects of the disclosure provide a rotary hammer that is configured to impart impacts to a tool bit. The rotary hammer includes a housing, a motor disposed within the housing, a spindle, and an impact mechanism. The housing includes a first end that can have a handle and a second end that are configured to receive the tool bit. The housing extends along a direct direction between the first and second end. The spindle is disposed within the housing and rotatable by the motor. The spindle defines a spindle axis that is transverse relative to the first direction. The impact mechanism includes a piston and a striker. The piston is at least partially received within the spring for reciprocation therein. The striker is received within the spindle for reciprocation in response to reciprocation of the piston.

The present invention discloses a multifunctional electric hammer, which has a housing, a handle connected to the rear of the housing, an adjustment device installed inside the housing, and a switch installed inside the handle; the switch is provided with a spring fixed to its upper end, the spring is provided with a connecting portion extending toward the housing and a stopper located at the end of the connecting portion and bent downward and forward; the adjustment device has a movable module that slides forward and backward along the output direction of the multifunctional electric hammer; when the multifunctional electric hammer is in impact mode, the movable module abuts against the connecting portion of the spring, and when the switch is pressed, the spring is driven to move in a direction away from the housing, the movable module moves from the connecting portion to the stopper and abuts against the stopper, and the switch is locked. The switch has a locking function in the impact mode, which is conducive to reducing the burden on the operator.

An electric power tool includes a handle extending in a front-to-back direction, a motor housing disposed in front of the handle, a motor disposed inside the motor housing and having a stator and a rotor, the rotor being rotatable with respect to the stator, a bevel gear configured to rotate integrally with the rotor and having a shaft extending in the front-to-back direction, a spindle rotated directly or indirectly via the bevel gear and extending in a direction crossing the front-to-back direction, a tool accessory holder rotated by the spindle, a housing accommodating the bevel gear and the spindle, and a bearing held by the housing and configured to hold the bevel gear so as to be rotatable.