A power tool having a hammer mechanism includes a motor, a driving mechanism operably connected to the motor and configured to at least linearly drive a tool accessory along a driving axis, a tool body that houses the motor and the driving mechanism, an outer housing elastically connected to the tool body such that the outer housing at least partially covers the tool body and being slidable relative to the tool body in a first direction substantially parallel to the driving axis, a guide part configured to guide sliding movement of the outer housing relative to the tool body, and a handle including a grip part extending in a second direction, the handle being elastically connected at least to the outer housing and being movable relative to the outer housing in the first direction and in at least one direction that intersects the first direction.

An electric power tool includes a motor, a spindle, a first vibration cam, a housing, a second vibration cam, a vibration switching member, and a plurality of biasing members. The spindle is rotatable by the motor. The first vibration cam is fixed to the spindle. The first vibration cam is located inward of the housing. The second vibration cam is located inward of the housing. The second vibration cam is configured to be in friction with the first vibration cam. The vibration switching member switches between a rotatable condition and an unrotatable condition of the second vibration cam with respect to the housing. The plurality of biasing members bias the vibration switching member.

A percussion tool comprises a housing and an electric motor positioned within the housing. The motor has a nominal outer diameter of up to about 80 mm and is operable to output at least about 2760 W. The percussion tool further comprises a battery pack supported by the housing for providing power to the motor. The battery pack includes a plurality of battery cells having a nominal voltage of up to 80 Volts and a sustained operating discharge current of between about 40 A and about 60 A. The percussion tool further comprises a percussion mechanism driven by the motor and including a striker supported for reciprocation in the housing. The percussion tool has a ratio of impact energy to mass that is greater than or equal to 2.5 Joules/kilogram.

An impact tool includes a motor, a driving mechanism, a body housing, a battery-mounting part, a first detection part and a control part. The driving mechanism is configured to linearly drive a tool accessory along a driving axis by power of the motor, the driving axis extending in a front-rear direction of the impact tool. The body housing houses the motor and the driving mechanism. The battery-mounting part is configured to removably receive a battery. The first detection part is configured to detect a rearward push of the tool accessory relative to the body housing. The control part is configured to start driving of the motor in response to detection of the rearward push of the tool accessory by the first detection part.

A power tool is provided including a motor housing; a transmission housing disposed adjacent the motor housing with a gap therebetween; an electric motor including a rotor and a stator mounted within the motor housing; and an intermediate housing disposed between the electric motor and the transmission mechanism. The intermediate housing includes a back wall extending radially adjacent an axial end of the stator and having a through-hole therein through which the motor spindle extends; side walls extending axially from an outer circumference of the back wall internally of the motor housing; and one or more external walls extending substantially-radially outwardly from axial end of the one or more side walls to fill a gap formed between the transmission housing and the motor housing in the axial direction.

A percussion tool comprises a housing, an electric motor positioned within the housing, a percussion mechanism driven by the motor and including a striker supported for reciprocation in the housing along a first axis, and a pair of handles coupled to the housing. The handles define a second axis. The percussion tool further comprises a battery pack removably coupled to the housing for providing power to the motor when coupled to the housing. The first and second axes are contained within first and second planes, respectively, that are parallel to each other.

A percussion tool, for performing a chiseling operation on a workpiece with a chisel, comprises a housing including a front side, and rear side, and opposite lateral sides extending between the front and rear sides, a first handle coupled to a first of the lateral sides of the housing, a second handle coupled to a second of the lateral sides of the housing, the first and second handles oriented coaxially along a handle axis, an electric motor positioned within the housing, a percussion mechanism driven by the motor and including a striker supported for reciprocation relative to the housing along a striker axis, and a light source that produces light to illuminate the workpiece. The chisel is configured to deliver repeated axial impacts to the workpiece in response to receiving repeated axial impacts from the striker.

Providing an electric tool with excellent cooling efficiency. An electric tool includes: a housing 2; a motor 3; a fan 34; a sensing portion 41; a switching portion 42; and a circuit board 40. The motor 3 is accommodated in the housing 2. The motor 3 includes a stator 33, a rotor 32, and a rotating shaft 31. The rotor 32 is rotatable relative to the stator 33. The rotating shaft 31 is rotatable together with the rotor 32. The fan 34 is configured to generate a cooling air flow inside the housing 2. The sensing portion 41 is configured to detect a rotated position of the rotor 32. The switching portion 41 controls a rotation of the rotor 32. The sensing portion 41 and the switching portion 42 are mounted on the circuit board 40. The stator 33, the fan 34, the sensing portion 41, the switching portion 42, and the circuit board 40 are arranged in the housing 2 along an axial direction of the rotor 32 in the order of the fan 34, the sensing portion 41, the circuit board 40, the switching portion 42, and the stator 33.

A power tool and accessory system is described that comprises a power tool such as hammer drill and an accessory such as dust extractor. In order to provide electrical power to the drive motor of the dust extractor, a first induction coil is disposed in the hammer drill and is electrically connected to the power supply of the hammer drill. A second induction coil is disposed in the dust extractor at a location in which, when the hammer drill and dust extractor are connected, current through the first induction coil induces a voltage in the second induction coil through inductive coupling. As a consequence, the drive motor of the dust collector is powered by inductive power transfer from the electrical power source of the hammer drill.

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.