B25D11/00

Rotary hammer

A rotary power tool includes a housing, a spindle defining a working axis, and a motor supported by the housing. The motor is operable to drive the spindle. The rotary power tool also includes a handle movably coupled to the housing and a vibration isolating assembly disposed between the housing and the handle. The vibration isolating assembly attenuates vibration transmitted from the housing to the handle. A battery pack is removably coupled directly to the handle and configured to provide power to the motor.

Power tool

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.

Device for transmitting energy to a fastener

The invention relates to a device for transmitting energy to a fastener, with a reaction chamber, an energy-transmission element that can move in a fastening direction for transmitting energy released in the reaction chamber to a fastener, a first supply channel opening into the reaction chamber for feeding a first reagent to the reaction chamber, wherein the first supply channel comprises a feeder device for feeding the first reagent into the reaction chamber and a controllable closing device for a time-wise closing of the first supply channel.

Hand-Held Power Tool, Fanless Storage Battery

A hand-held power tool, in particular a hammer drill or a combination hammer, is disclosed. The hand-held power tool includes a tool housing which has a receiving recess designed to replaceably receive a storage battery or a power supply unit. The hand-held power tool has an electric drive motor with a cooling fan. The tool housing has a first vent portion which is located in the receiving recess and through which a volume flow generated by the cooling fan can be guided.

Hand-Held Power Tool, Fanless Storage Battery

A hand-held power tool, in particular a hammer drill or a combination hammer, is disclosed. The hand-held power tool includes a tool housing which has a receiving recess designed to replaceably receive a storage battery or a power supply unit. The hand-held power tool has an electric drive motor with a cooling fan. The tool housing has a first vent portion which is located in the receiving recess and through which a volume flow generated by the cooling fan can be guided.

Dual impact fluid driven hammering tool
09776314 · 2017-10-03 ·

Disclosed is a fluid hammer tool with two separate fluid hammers in separate sections of the tool. The tool includes an upper poppet valve assembly along one fluid flow path, and a lower poppet valve assembly along a separate outer flow path. Both fluid flow paths are fed from an upper sub and both exit through a lower sub. Both poppet valves include spring return mechanisms. Sealing of each poppet valve propagates an upstream shock wave. The lower poppet valve assembly encounters greater fluid flow and generates a larger shock wave. In the period when the upper poppet valve is closed, the lower poppet valve cannot open.

HAND-HELD CHISELLING MACHINE TOOL
20170274517 · 2017-09-28 ·

The invention relates to a hand-held chiselling machine tool comprising a motor and a pneumatic percussive mechanism that is driven by the motor. The user can select between at least two idling rotational speeds by means of a selector switch. In the chiselling mode, a motor control unit regulates a rotational speed of the motor to a nominal rotational speed. This nominal rotational speed cannot be set by the user, but is predetermined with regard to an optimal efficiency for said percussive mechanism. The motor control unit sets the rotational speed of the motor to the selected idling rotational speed when the percussive mechanism is idling. At least one of the selectable idling rotational speeds is greater than the nominal rotational speed.

Power Tool Ski System and Method

A power tool accessory for elevating the base of a power tool from off a work surface and a method of use. The accessory or ski comprises a bridge, a first side wall coupled to the bridge, and a second side wall coupled to the bridge opposite the first side wall. The bridge, the first side wall, and the second side wall form an upper surface and an opening through which a power cord may pass. The upper surface is configured to receive a base of a power tool. Because the ski elevated the power tool from off of a work surface, dust, debris, and grit is not brought into the intake of the power tool, the power cord is not kinked, and the base of the power tool is not worn down on the work surface.

Impact tool

An impact tool performs a processing operation on a workpiece by carrying out an impact operation on a tool bit in a longitudinal axis direction. The impact tool includes a motor having a rotor and a stator, a tool main body housing the motor, a drive shaft parallel to a longitudinal axis of the tool bit and rotatably driven by the motor, and an oscillating member that is supported by the drive shaft and that carries out an oscillating movement in the axial direction of the drive shaft based on the rotational motion of the drive shaft. A tool drive mechanism is coupled to the oscillating member so that the oscillating movement of the oscillating member linearly moves the tool bit in the longitudinal axis direction. The motor is an outer rotor motor in which the rotor is disposed on an radially outer side of the stator.

Impact tool

An impact tool performs a processing operation on a workpiece by carrying out an impact operation on a tool bit in a longitudinal axis direction. The impact tool includes a motor having a rotor and a stator, a tool main body housing the motor, a drive shaft parallel to a longitudinal axis of the tool bit and rotatably driven by the motor, and an oscillating member that is supported by the drive shaft and that carries out an oscillating movement in the axial direction of the drive shaft based on the rotational motion of the drive shaft. A tool drive mechanism is coupled to the oscillating member so that the oscillating movement of the oscillating member linearly moves the tool bit in the longitudinal axis direction. The motor is an outer rotor motor in which the rotor is disposed on an radially outer side of the stator.