To reduce size increase, an impact tool includes a motor, a spindle located frontward from the motor and rotatable by the motor, a hammer supported by the spindle, an anvil strikable by the hammer in a rotation direction and having an insertion hole extending rearward from a front end of the anvil, a locking member supported by the anvil and movable to a locking position for locking a tip tool placed in the insertion hole and to an unlocking position for unlocking the tip tool, and a bit sleeve surrounding the anvil. The bit sleeve is movable to a movement-restricting position for restricting radially outward movement of the locking member and to a movement-permitting position for permitting radially outward movement of the locking member. The bit sleeve is at least partly between the hammer and the anvil in a radial direction.

A hand-held power tool includes a drive unit configured to drive an insertion tool in at least one non-percussive operating mode. The drive unit includes a percussion mechanism for percussive driving of the insertion tool in an associated percussion mode. The hand-held power tool further include a user guidance unit configured to be actuated by a user and a communication interface configured to communicate with the user guidance unit and to receive, from the user guidance unit, changeover instructions for changing over the drive unit between the at least one non-percussive operating mode and the associated percussion mode in an application-specific manner.

An impact tool has a mechanical structure to strike an anvil with a striking force appropriate for a task. An impact tool includes a motor, a hammer rotatable by the motor, an anvil that receives a tip tool and is strikable by the hammer in a rotation direction, an elastic member having a front end supporting the hammer and being extendable and contractable in a front-rear direction to apply an elastic force to the hammer toward the anvil, and a positioner supporting a rear end of the elastic member. The positioner changes a support position of the positioner supporting the rear end of the elastic member in the front-rear direction.

An impact drill includes an output shaft capable of rotating around a first axis and moving along the first axis, a housing, a first impact block fixedly connected to the output shaft, a second impact block, a stopping element for stopping the output shaft from moving backward, and a movable element mounted on the housing. The housing is formed with a through hole for accommodating the movable element. The through hole passes through the housing in a first line and the movable element is capable of moving to a first position and a second position along the first line. When the movable element moves to the first position, the movable element prevents the output shaft from moving backward. When the movable element moves to the second position, the movable element allows the output shaft to move backward.

A rotary power tool, such as an oil pulse driver, includes: a motor, a pinion rotated by the motor, planet gears that mesh with the pinion, an internal gear that meshes with the planet gears and a shaft that is rotationally driven by the planet gears and disposed frontward of the planet gears. The internal gear comprises an internal gear part and an internal gear retaining part for holding the internal gear part. An oil unit bearing is disposed frontward of the internal gear part, and the oil unit bearing is held at a front part of the internal gear retaining part.

A driving device includes a motor and a gearbox. The gearbox includes a sun gear, planetary gears surrounding and meshing with the sun gear, and an internal ring gear surrounding and meshing with the planetary gears. The motor is a single phase motor. The sun gear is integrally formed with a rotary shaft of the motor. A power tool is also disclosed which includes the driving device, a rotatable working head driven by the driving device, and a striking unit disposed between the driving device and the working head. By integrating the sun gear and the motor rotary shaft to form an integral gear shaft, the number of the teeth of the sun gear can be reduced to five or less. Therefore, the transmission ratio of the gearbox can be effectively increased without changing the maximum geometric outer diameter.

A rotary power tool assembly including a hammercase an axis extending between a forward end and a rearward end, a drive mechanism housed within the hammercase, and a hammer driven by the drive mechanism to apply a rotational impact force on an anvil. The anvil includes an output shaft rotatable about the axis, a plurality of anvil jaws extending from the axis, and a flange fixedly connected to an end of the output shaft and extending radially from the axis, wherein the flange supports the plurality of anvil jaws, the flange extending over the plurality of anvil jaws. The anvil includes a magnet attached to the flange opposite to the plurality of anvil jaws. An anvil angle sensor is configured to read and interpret magnetic flux changes of the magnet and determine the position of the anvil rotating about the axis.

In a handheld power tool having a drive motor operable via a manual switch for driving a drive body which is associated with a mechanical percussion mechanism and coupled to a percussion member for driving an output shaft provided with a tool receptacle, and an operating mode switchover element which is designed to switch over between a normal operation and a percussion operation of the percussion mechanism and which is coupled to the drive body being associated with the drive body, an operating device is provided for operating the operating mode switchover element which is coupled to the manual switch and which is designed to enable a switchover of the operating mode switchover element between normal operation and the percussion operation of the percussion mechanism by operating the manual switch.

A power wrench includes a hydraulic pulse unit that includes an impulse generator. A separating arrangement is provided to extract air from oil. The separating arrangement includes a disc-shaped separator element and a sealing arrangement arranged to provide a seal between the disc-shaped separator element and a receiving space in fluid communication with the oil chamber. The disc-shaped separator element provides a passageway between the oil chamber and the receiving space by a fluid opening. The separating arrangement also includes a partitioning element arranged in the receiving space, such that first and a second partial volumes are formed on sides of the partitioning element. The first and second partial volumes are in fluid communication, and the fluid opening is arranged on the first side of the partitioning element.

A power tool including a motor and an impact mechanism. The impact mechanism is coupled to the motor and includes a hammer driven by the motor, and an anvil positioned at a nose of the power tool, and configured to receive an impact from the hammer. The power tool also includes a sensor assembly positioned at the nose of the power tool, and an electronic processor. The sensor assembly includes an output position sensor configured to generate an output signal indicative of a position of the hammer or the anvil. The electronic processor is coupled to the output position sensor and to the motor, and is configured to operate the motor based on the output signal from the output position sensor.