A multi-function handheld electric tool includes a motor housing receiving a motor, a settable clutch coupled with a speed reduction transmission, transmission housing coupled to the motor housing and having a first housing portion coupled to the motor housing, and a second housing portion extending from the first portion towards a chuck, and a setting collar which is rotatably fit over the second housing portion of the transmission housing and rotatable between a plurality of predetermined angular positions of which at least one corresponds to a non-torque limited first operation mode of the tool and the remaining positions correspond to different torque output levels of a torque limited second operation mode of the tool.

Electric hand-held power tool, in particular a hammer drill and/or rotary hammer, having a function setting tube, which can be actuated via a manual function selector switch to bring about various operating modes, a guide tube equipped with a tool fitting, and having a ball-type latching clutch for transmitting a rotary movement from the function setting tube to the guide tube, wherein the ball-type latching clutch has a radial aperture formed in the function setting tube, a main latching depression formed in the guide tube, a coupling ball mounted in the radial aperture and intended to engage in the main latching depression, and a spring-loaded cone ring against whose actuating force the coupling ball can deflect in the radial direction, wherein the guide tube has formed therein an auxiliary depression that is different from the main latching depression and whose opening angle is larger than an opening angle of the main latching depression.

A power tool, such as a rotary hammer, includes a housing, an output shaft for mounting a tool accessary and a motor having a motor shaft that generates a rotational output for rotating and linearly hammering the output shaft. The rotational output of the motor shaft is coupled to the output shaft via a driving mechanism that includes a hammer mechanism. An intervening member is axially movable relative to the motor shaft and is operably coupled between the motor shaft and the hammer mechanism. The hammer mechanism and the output shaft are supported by a movable support that is axially movable relative to the housing. Because the output shaft and the driving mechanism are movable relative to the motor and the housing, which preferably includes handle, via the intervening member and the movable support during hammering operations, vibration generated during hammering operations can be dampened before reaching the housing.

A reducer appropriately selects from three or more variable speeds to match multiple operational modes. An impact driver includes a motor, a reducer that reduces rotation from the motor to select from three or more variable speeds, a plurality of actuators to be actuated by the rotation reduced by the reducer, and a switcher that selects, from the plurality of actuators, a specific actuator to be actuated in a predetermined operational mode. The switcher causes the reducer to cooperate with the selected specific actuator and actuates the reducer at a predetermined variable speed of the three of more variable speeds corresponding to the predetermined operational mode of the selected specific actuator.

An electric impact hammer includes an output shaft, a cylinder and a piston arranged in the cylinder. The piston defines an accommodating groove running through the rear end surface and a pair of through holes communicating with the accommodating groove and running through the outer periphery, and the front end of the output shaft is inserted in the accommodating groove, and the output shaft defines a corrugated groove on the outer periphery of the front end and a steel ball partially accommodated in the corrugated groove, the corrugated groove is connected end to end along the outer periphery of the output shaft and has an axial front end and an axial rear end; the other part of the steel ball is accommodated in the through hole, and the output shaft drives the piston to reciprocate in the axial direction by means of the steel balls.

An electric hammer includes a housing, an electric motor, an output assembly, an impact assembly, a mounting shaft, a clutch assembly, and a switching assembly. The mounting shaft is rotatable about a second axis. When the electric hammer is in the drill mode, a sleeve of the output assembly rotates. When the electric hammer is in the hammer drill mode, the sleeve rotates and an impact block of the impact assembly reciprocates in the sleeve. The switching assembly is configured to switch the clutch assembly between a first state and a second state and includes a switching element. The switching element includes a forced end and a drive end, the output assembly moving along a first axis drives the forced end to move, and the drive end is configured to drive the clutch assembly to be switched to the first state.

In a hammer drill, a coil spring that urges a first clutch and a second clutch in directions away from each other is held between a first change plate that engages with the first clutch to be slidable in the axial direction of an intermediate shaft and a second change plate that engages with the second clutch to be slidable in the axial direction of the intermediate shaft. The first change plate is slidably guided by a gear housing.

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.

A power tool includes a motor, a housing, a battery holder and a cushion. The battery holder is held by the housing to be movable at least in a first direction relative to the housing. The battery holder is configured to removably receive a battery for supplying electric power to the motor. The cushion is held by the housing such that the first direction intersects the cushion. When the battery is attached to the battery holder, the cushion is directly or indirectly disposed between the battery and the housing.

A handheld power tool is disclosed. The tool has a housing, a hammer mechanism and a torque coupling. The hammer mechanism includes a beater which is movably guided along the working axis in the guide tube. The guide tube is mounted in a suspension attached to the housing so that it is movable along the working axis. The torque coupling is mounted on the guide tube and is supported on the suspension in the impact direction. The guide tube is supported on the torque coupling in the impact direction. The guide tube may be shifted with respect to the housing in the impact direction such that the torque coupling is shifted relative to the housing through the guide tube in a positively guided manner.