2721results about "Portable power-driven tools" patented technology

An electric work machine with improved workability at high output, configured to cut a work target, is provided. The electric work machine comprises: a working portion configured to cut the work target and a main body including: a housing; a flow path forming portion; a motor; and a control unit, wherein the motor generates rotational power for driving the working portion, the control unit electrically controls rotation of the motor, the flow path forming portion forms an air flow path including a first air flow path and a second air flow path, the first air flow path communicates with an exterior of the housing to allow external air to flow to the motor via the control unit, and the second air flow path communicates with the exterior of the housing so as to allow external air to flow directly to the motor.

An electric tool includes: a housing assembly including a housing body and an operation portion integrally connected with the housing body; a driving mechanism connected to the housing assembly and including a motor and a transmission shaft connected to and driven by the motor; and a control module arranged within the housing assembly and comprising a controller and a sensing element that is electrically connected to the controller. The motor is electrically connected to the controller. The sensing element is arranged at an inner side of the operation portion. The sensing element is to detect a user operation on the operation portion and output a signal to the controller, and the controller is to control the motor in response to the signal output by the sensing element.

A grinder including a housing, a motor within the housing, and a first handle attached to the housing and including a first sensor configured to detect the presence of a user. The grinder includes a second handle attached to a pivot arm, the pivot arm attached to the housing and configured to be pivoted around the circumference of the housing, the second handle including a second sensor configured to detect the presence of the user. The grinder includes a controller configured to control the motor based upon the detection of the presence of the user by the first sensor and second sensor, and wherein the controller prevents the motor from operating when second sensor does not detect the presence of the user.

A powered ratchet tool includes a housing and a motor disposed within the housing. The motor has an output shaft rotatable about a first axis. The powered ratchet tool further includes a ratchet mechanism supported by the housing and operably coupled to the output shaft to be driven by the motor. The ratchet mechanism has a crankshaft assembly defining a variable crank radius configured to change an extent of each rotational stroke of the ratchet mechanism. Moreover, the powered ratchet tool includes an output drive operably coupled to the ratchet mechanism to be rotated about a second axis perpendicular to the first axis.

A handheld power tool includes a grip for a user to hold; an output shaft rotatable about a first axis; a mounting device for mounting a working attachment to the output shaft, where the working attachment has a mounting port that matches the output shaft; and an operating member capable of driving the output shaft to move along the direction of the first axis to lock or loosen the working attachment. The operating member could be located at least at a first position, a second position and a third position. When the operating member is located at the first position, the working attachment is locked; when the operating member moves from the first position to the second position, the output shaft moves downward along the first axis by a first preset distance. The third position is different from the first position and the second position.

An intelligent electric drill includes a case which has an MCU control unit, a drive unit, a power unit, and a data unit. The MCU control unit controls the power, speed, and torque of the drive unit. A mechanical speed mode recognition module group is electrically connected to the MCU control unit and includes a speed mode recognition electronic module and a plastic speed mode module within the case. The mechanical speed mode recognition module group determines the switching position of the plastic speed mode module, and the speed mode recognition electronic module inputs the determined signal to the MCU control unit. This allows users to automatically recognize the positions of mechanical speed mode and function mode while driving with the electric drill. Users can drive with accurate and appropriate power, achieving precise output of speed, torque, and workload.

An actuating unit for releasing a battery device for a hand-held power tool having a locking element for locking the actuating unit and having an actuating element that is provided to move the locking element from a retaining state into a release state of the actuating unit. It is provided that in the release state, the locking element is held with a positive fit and / or with a frictional fit.

A power tool is provided including: a tool housing; a motor disposed within the tool housing; a battery receptacle arranged to be coupled to a battery pack having a rated capacity; a power switch circuit disposed between the battery receptacle and the motor; and a controller that controls the power switch circuit to drive the motor. The controller is configured to: determine or receive a pack ID associated with the rated capacity of the battery pack; set a braking profile for electronically braking the motor based on the pack ID; and apply an electronic brake to the motor in accordance with the set braking profile upon detection of an event associated with stoppage of the motor.

The invention relates to the technical field of handheld gun drills, and discloses a lithium battery wireless operation gun drill which comprises a gun body, a supporting sleeve is fixedly connected to the outer wall of the gun body, a first sliding sleeve is slidably connected to the outer wall of the supporting sleeve, and a driving rod is rotatably connected to the inner wall of the gun body through a bearing; a sliding rod is slidably connected to the outer wall of the driving rod through a spline, a chuck is fixedly connected to the end, away from the driving rod, of the sliding rod, a supporting mechanism is arranged on the outer wall of the first sliding sleeve and comprises a third sliding sleeve, the inner wall of the third sliding sleeve is slidably connected with the outer wall of the first sliding sleeve, and a second positioning block is inserted into the inner wall of the third sliding sleeve. The gun body is supported through the supporting mechanism, the friction force between the gun body and the surface of the metal plate is increased, when the drill bit is stuck, the impact force generated by self-rotation of the gun body part is released to the surface of the metal plate through the pressing plate and the pressing block, and the situation that the counter impact force generated by sticking of the drill bit in the drilling process is too large is avoided.

The invention discloses a reciprocating cutting tool which comprises a base, a battery pack, a guide connecting structure and a linkage shielding mechanism. The base is provided with an electric contact, the battery pack is detachably connected with the base, the guide connecting structure is arranged between the battery pack and the base to guide installation, and the linkage shielding mechanism comprises an action input piece, a mechanical locking assembly and a shielding piece. When the battery pack is in an initial mounting state, the shielding piece is positioned at the shielding position to physically cut off the electric contact; when the action input piece is operated, the action input piece is linked with the mechanical locking assembly and the shielding piece, the mechanical locking assembly is firstly driven to enable the battery pack and the base to be completely mechanically locked, and then the shielding piece is driven to move to the open position to expose the electric contact to establish electric connection. The reciprocating cutting tool is provided with an accurate guiding installation and sequential linkage mechanism, so that part abrasion is reduced, connection reliability is improved, and safety risks caused by a semi-connection state are avoided.

A fastener driver includes: a striking assembly including a striking member configured to strike a fastener; and an electric motor, where the electric motor is configured to drive a power mechanism to move and generate power. The striking member includes a striking end for striking the fastener, and the striking end is provided with a recess.

A power tool includes a main housing, a drive mechanism, a working head, and a connection assembly. The connection assembly includes an input portion connected to the drive mechanism and an output portion connected to an output shaft. The connection assembly rotates the working head about a first axis relative to the main housing. The power tool includes a first transmission path. When the working head rotates about the first axis relative to the main housing, components in the first transmission path are allowed to deform or to be displaced along a direction of the first transmission path.

A construction robot (10), in particular for performance of building construction work, including a manipulator (18), a changeover interface (21) arranged on the manipulator (18) and configured for releasable arrangement of at least one element, in particular a tool (24) and / or a component to be processed, on the manipulator (18). A test device (104) which is configured for quality testing of the changeover interface (21), safety risks on use of the construction robot (10) can be minimized.

A hand-held drive apparatus comprises an apparatus main body including a pruner and a handle rotatably connected to the apparatus main body and including a rotation lock mechanism and a drive operation mechanism. The rotation lock mechanism includes a rotation lock lever movable to a rotation prevention position where the handle is prevented from rotating, and to a rotation allowance position where the handle is allowed to rotate. The drive operation mechanism includes a switch configured to control activation of the pruner and a throttle lever movable to a contact position where the throttle lever pushes the switch and to a non-contact position where the throttle lever is separated from the switch. The throttle lever contacts the rotation lock lever at the rotation allowance position to maintain the non-contact position, and is, when the rotation lock lever is at the rotation prevention position, allowed to move to the contact position.

A hand tool includes an actuator which drives a moving part directly or via a gearbox or by a hydraulic medium for performing an intended operation. A chamber formed in the hand tool can be changed and evaluated for acquiring a state of the hand tool. The operation can be performed independently of the air pressure that develops in the chamber.

A holding frame (22) for receiving a tool (24) which has a storage battery interface (58) for receiving a storage battery (60) such that the latter is detachable, in particular detachable without the use of tools. The holding frame (22) has a holding portion (70) that is designed complementarily to the storage battery interface (58). The holding frame (22) furthermore has an attachment point (80) for attachment to a manipulator (18) of a construction robot (10). A construction robot (10) is also provided. The invention inexpensively allows particularly versatile use of the construction robot (10).

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.

A power tool includes a housing, an electric motor disposed within the housing, a first printed circuit board assembly configured to selectively supply electric current to the electric motor, causing the electric motor to activate and drive a tool element, and a battery receptacle configured to support a removable battery pack. The battery receptacle has a battery terminal block electrically connected to the battery pack to supply electrical current to the first printed circuit board assembly. The power tool further includes a second printed circuit board assembly electrically connected between the first printed circuit board assembly and the battery terminal block. The second printed circuit board assembly has a fuse and a thermistor configured to detect a temperature of the fuse.

An electronic processor of a wireless fob is configured to establish a first communication link between the wireless fob and an external device, and receive, over the first communication link, first identification information and credential information of a power tool device from the external device. The electronic processor is further configured to receive, via the wireless transceiver, an identification signal including second identification information from the power tool device. The electronic processor is further configured to identify the power tool device by determining that the first identification information matches with the second identification information. The electronic processor is further configured to transmit the credential information to the power tool device to establish a second communication link between the wireless fob and the power tool device and transmit, over the second communication link, a command to the power tool device to control an operation of the power tool device.

The disclosure provides a power tool and power tool system, including: a first slot and a second slot; when the power tool is in a double-pack working state, battery packs are respectively arranged in the first slot and the second lot; when the power tool is in a single-pack working state, the battery pack is arranged in the first slot or the second slot, and both the double-pack working state and the single-pack working state provides a same rated voltage to the power tool.

The present invention improves workability of a work machine. A work machine 10 comprises: a motor unit 11 which includes an electric motor; a battery pack 13 which supplies electric power to the electric motor; an attachment unit 16 to which the battery pack 13 is attached; a drive unit 20 which is connected to the motor unit 11; a cover 15 which covers the drive unit 20; an output shaft 30 which is supported by the drive unit 20; a tip-end tool 52 which is attached to a tip end of the output shaft 30; and a housing 14 which houses the motor unit 11. In the work machine 10, the drive unit 20 and the cover 15 are coupled to each other via a U-shaped elastic member 22, and the motor unit 11 and the housing 14 are connected to each other without an elastic body therebetween.

A work machine includes: a motor; a plunger that is reciprocated in the front-back direction by the drive of the motor; a transmission mechanism that converts a rotational driving force of the motor into a reciprocating driving force and transmits the reciprocating driving force to the plunger; a first support that supports the plunger to be capable of reciprocating and is disposed on one side of the plunger in an orthogonal direction orthogonal to the front-back direction; a second support that supports the plunger to be capable of reciprocating and is disposed on the other side of the plunger; and a support member that supports at least one of the first support and the second support such that the distance between the first support and the second support in the orthogonal direction can be changed.

A power tool includes a working component configured with the maximum output rotational speed; an electric motor configured with the maximum rotational speed; a transmission assembly configured with a transmission ratio; a driver circuit including one or more drive switches; and a controller for outputting a control signal to control the one or more drive switches of the driver circuit. At least one drive switch in the driver circuit includes a wide bandgap semiconductor switch, and the ratio of the required maximum rotational speed of the electric motor to the maximum rotational speed of the electric motor is less than or equal to 0.9. The electric motor system of the power tool has good electrical performance.

A rotary impact tool including a motor housing, an electric motor supported in the motor housing, and a drive assembly for converting a continuous torque input from the motor to consecutive rotational impacts upon a workpiece. The drive assembly includes an anvil including an anvil lug, and a hammer that is both rotationally and axially movable relative to the anvil. The hammer includes a hammer lug for imparting the consecutive rotational impacts upon the anvil lug. The rotary impact tool further includes a first printed circuit board assembly including an anvil sensor, a first carrier supporting the first printed circuit board assembly, a second printed circuit board assembly including a hammer sensor, and a second carrier supporting the second printed circuit board assembly.

To suppress noise generated from an electric work machine.SOLUTION: An electric work machine includes a motor including a stator including a stator core and a coil attached to the stator core, and a rotor including a rotor core and a rotor shaft fixed to the rotor core, an output portion that is placed in front of the motor and rotates by the rotational force of the motor, a first support member having a first contact surface that contacts the front end surface of the stator core, a second support member having a second contact surface that contacts the rear end surface of the stator core, and a screw connecting the first support member and the second support member such that the stator core is tightened from the front and rear directions by the first support member and the second support member.SELECTED DRAWING: Figure 8

To achieve compactification of a dust collection part to secure good visibility even if a connection port is provided at a dust collection cup.SOLUTION: A dust collection cup 1 includes a connection port 17 of a flexible hose 31 at the radial outer side of a bit B and the rear relative to a seal plate 8 on an outer peripheral surface of an attachment part 2. The connection port 17 is disposed at a position such that a distance D1 from an axis A1 of the attachment part 2 to a point P1 at an outermost position from the axis A1 in a radial direction is longer than a distance D2 from the axis A1 to a point P2 on an outer peripheral surface of the attachment part 2, which is located at the opposite side of the point P1 across the axis A1 in the radial direction.SELECTED DRAWING: Figure 3

A power tool including a housing and a motor mounted in the housing and operatively connected to a tool holder arranged to hold a cutting tool bit. At least one guide post has a longitudinal axis slidably mounted to the housing such that the housing is moveable in a direction parallel with the longitudinal axis between a retracted position and a plunged position. A base portion is fixed to the at least one guide post and a slide bearing is mounted between the housing and the at least one guide post. The slide bearing is slidable with respect to the at least one guide post when the housing moves between the retracted position and the plunged position. The slide bearing includes at least one dampening element arranged to dampen movement of the at least one guide post with respect to the housing in a direction perpendicular to the longitudinal axis.

An adaptor device (10) acts between a drive tool (12) (e.g. a power tool) and a driven tool (14) (e.g. fastener engagement tool). The drive tool has a central drive portion and an outer drive portion. The driven tool has at least an outer driven member. The adaptor device transmits drive from the outer drive portion of the drive tool to the outer driven member of the driven tool, which can be detachable from a portion of the adaptor. Retainer means (16) can retain the adaptor device or an outer driven member of a driven tool to an outer drive portion of a drive tool. Splined connections can be crowned or barrelled facilitating misalignment. Optional compliant means (120) between outer driven member and inner driven member enables an amount of radial misalignment. The adaptor device enables reactionless drivers to operate different types of torque multiplier type tools.

A powered fastener driver includes a driver unit, a handle unit, and a handle extension. The handle unit is selectively and removably attachable to the driver unit. The handle extension has a first end and a second end, the handle extension being selectively and removably attachable to the driver unit at the first end, and being selectively and removably attachable to the handle unit at the second end. The powered fastener driver is adjustable between a first configuration in which the handle unit is directly attached to the driver unit, and a second configuration in which the driver unit is attached to the handle extension at the first end, and the handle unit is attached to the handle extension at the second end.

A hydraulic hand tool has a first oil-return channel, a second oil-return channel, and an oil-return-controlling mechanism. Hydraulic oil can carry out the oil-return process through the first oil-return channel and the second oil-return channel. The oil-return-controlling mechanism has a control channel, a blocking unit, an elastic unit, a driving assembly, and a control module. The control channel communicates with the first oil-return channel and the second oil-return channel. The blocking unit is mounted in the control channel. The elastic unit presses against the blocking unit to block the control channel and thus isolate the first oil-return channel and the second oil-return channel. The driving assembly is controlled by the control module. The driving assembly makes the blocking unit abut against the elastic unit and move, and thus the first oil-return channel and the second oil-return channel communicate with each other.