Abstract: A hand-held power tool has a main element having a tool axis, a center of gravity, and a normal axis which extends perpendicular to the tool axis and through the center of gravity. The tool axis and the normal axis define a plane of motion. A handle supported in the plane of motion such that it is movable relative to the main element. A spring unit connects the handle with the main element and includes a spring element. The handle has a handle body, a rotary element which connects the handle body and the main element. The rotary element is rotatable relative to the main element and to the handle body.

Abstract: A device has a torque-limiting unit of a power drill, wherein torque-limiting unit is intended to limit a screwdriving moment in a screwdriving function; and a power drill is provided with the new torque-limiting unit.

Abstract: A hand-held power tool includes a main element with a normal axis which extends perpendicularly to a tool axis and through a center of gravity. A handle is supported in the plane of motion defined by the tool axis and the normal axis such that it is movable relative to the main element. A spring unit connects the handle with the main element, and has a spring element to define a trajectory of at least one portion of the handle in the plane of motion under the influence of a load force triggered when the handle is moved out of a neutral position and approaches the stationary main element. A rotary element defines a joint-free rotation axis, about which the handle rotates in the plane of motion when a motion takes place relative to the main element.

Abstract: A hand-held power tool, has a main element having a tool axis, a center of gravity, and a normal axis which extends perpendicular to the tool axis and through the center of gravity, and the tool axis and the normal axis define a plane of motion, a handle supported in the plane of motion such that it is movable relative to the main element, a spring unit connecting the handle with the main element, the spring unit including a spring element and is provided to at least substantially define a trajectory of at least one portion of the handle in the plane of motion under an influence of a load force which is triggered when the handle is moved out of a neutral position and approaches the main element which is stationary, the handle having a handle body, a rotary element which connects the handle body and the main element and in interaction with the spring unit defines a joint-free rotation axis about which the handle rotates in the plane of motion when a motion takes place relative to the main element, and wherein

Abstract: The hand-held power tool has a vibration-damped main handle. The hand-held power tool has a device for fastening the main handle to a main element configured so that when the main element moves out of a stationary position toward the main handle the main element swivels around at least one swivel axis so that it is guided along a trajectory that extends with a slant of at least 10° relative to a flat surface, which extends through a longitudinal tool axis and which has a surface normal oriented in a normal direction perpendicular to the longitudinal tool axis. As a result vibrations with a movement component perpendicular to the longitudinal tool axis are damped as well as vibrations that induce motion of the main element in the direction of the longitudinal tool axis toward the main handle.

Abstract: The invention relates to an electric machine tool comprising a device body (10) that is disposed in a housing (11) and a handle (12) in which a switch (13) is arranged. Said switch (13) is indirectly connected to a switching element (14) located in the device body (10) in order to actuate an electric on/off switch (15).

Abstract: A very easy-to-actuate, replaceable tool fitting is comprised in that at least one movably supported profiled body (15) on an output spindle (1) or on the tool fitting (11) of the hand-held power tool and at least one profiled recess (7) on the output spindle (1) or on the tool fitting (11) are shaped and situated in such a way that when the tool fitting (11) is slid onto the output spindle (1), the at least one profiled body (15) engages in detent fashion in the at least one profiled recess (7), achieving both an axial locking and a rotary driving of the tool fitting (11) in relation to the output spindle (1) and means (6, 8, 14) are provided, which, through a rotating and sliding motion of the tool fitting (11) on the output spindle (1), guide the profiled body (15) into the profiled recess (7).

Abstract: The invention relates to a machine tool comprising an electric motor (2) which serves to drive a tool and which has an adjustable, electric brush arrangement (3), and comprising a mode selector switch (6) having various switch positions. Provision is made for an adjusting device (8) to displace the brush arrangement (3) as a function of the switch position of the mode selector switch (6). Furthermore, the invention relates to a corresponding method.

Abstract: A handle for an electric hand tool, which in use, is detachably connected to the hand tool as an auxiliary handle (2), includes at least one detection device (6), which communicates with at least one regulating and/or control element in the electric hand tool through a contactless signal transmission device.

Abstract: A hand-held power tool has a main element; a main handle fastened to the main element, the main handle being supported such that the main handle is movable relative to the main element, the main element including a tool fitting that defines a tool axis and the center of gravity that defines a normal direction oriented perpendicular to the tool axis and pointing toward the center of gravity, the main element being moved out of a stationary position toward the main handle so that a portion of at least 10% by weight of the main element is guided with a movement component in the normal direction along a trajectory.

Abstract: A portable power tool, particularly a hammer drill and/or chipping hammer, comprising a main element (12) which is provided with a tool axis (30), a center of gravity (32) and a normal axis (34) extending perpendicularly to the tool axis (30) and through the center of gravity (32), wherein the tool axis (30) and the normal axis (34) define a plane of movement, comprising a handle (14), which is mounted displaceably relative to the main element (12) in the plane of movement, and comprising a spring unit (46) connecting the handle (14) to the main element (12), the unit being provided with at least one spring element (48). It is proposed to provide the spring unit (46) so as to define at least substantially a path of movement (110) for at least a portion of the handle (14) in the plane of movement when a load (102) occurs that prompts the handle (14) to leave an idle position and approach the idle main element (12).

Abstract: A chuck is described, in particular for a hammer drill or chisel hammer, having a chuck body having an insertion opening for holding a tool shank, and a locking element for axially locking the tool shank in the insertion opening, the locking element being movable between a locked position and an unlocked position, and having an arresting pin, mounted in the locking element and radially displaceable between an arresting position and a release position, which axially arrests the locking element in its arresting position and axially releases it in its release position.

Abstract: A device has a torque-limiting unit of a power drill, wherein torque-limiting unit is intended to limit a screwdriving moment in a screwdriving function; and a power drill is provided with the new torque-limiting unit.

Abstract: The invention relates to a machine tool comprising an electric motor (2) which serves to drive a tool and which has an adjustable, electric brush arrangement (3), and comprising a mode selector switch (6) having various switch positions. Provision is made for an adjusting device (8) to displace the brush arrangement (3) as a function of the switch position of the mode selector switch (6). Furthermore, the invention relates to a corresponding method.

Abstract: A hand power tool has a housing, and drive motor accommodated in the housing, a tool receptacle in which a tool is guided, a gear mechanism, a driving gear, and rotary sleeve arranged so that via the gear mechanism, the driving gear, and the rotary sleeve the tool receptacle is drivable in rotation, a crank drive mechanism and a hammering mechanism located inside the rotary sleeve so that the tool receptacle is drivable through the crank drive mechanism and the hammering mechanism translationally, and a safety coupling provided between the driving gear wheel and the rotary sleeve and formed so that the safety coupling separates if a limit torque is exceeded, the safety coupling being formed as an overlock coupling seated on the rotary sleeve and having two axially adjacent coupling parts that mesh in a form-locked manner by torque-transmitting transmission elements and are overlockable if the limit torque is exceeded counter to an axially acting elastic force, one of the coupling parts being a part associated

Abstract: A hand power tool selected from the group consisting of a drill hammer and an impact hammer has an exchangeable tool holder, a guide pipe which receives the tool holder at its free end, a locking device arranged on the guide pipe and operative manually for fixing the tool holder on the guide pipe in a defined locking position assumed by the tool holder on the guide pipe, so that the locking position is arranged before a mounting position in a displacement direction of the tool holder, in which mounting position the tool holder is held unlocked on the guide pipe, the locking device being provided with means activatable by a release of the locking device and providing a displacement of the tool holder to the mounting position.

Abstract: A very easy-to-actuate, replaceable tool fitting is comprised in that at least one movably supported profiled body (15) on an output spindle (1) or on the tool fitting (11) of the hand-held power tool and at least one profiled recess (7) on the output spindle (1) or on the tool fitting (11) are shaped and situated in such a way that when the tool fitting (11) is slid onto the output spindle (1), the at least one profiled body (15) engages in detent fashion in the at least one profiled recess (7), achieving both an axial locking and a rotary driving of the tool fitting (11) in relation to the output spindle (1) and means (6, 8, 14) are provided, which, through a rotating and sliding motion of the tool fitting (11) on the output spindle (1), guide the profiled body (15) into the profiled recess (7).

Abstract: A chuck is described, in particular for a hammer drill or chisel hammer, having a chuck body having an insertion opening for holding a tool shank, and a locking element for axially locking the tool shank in the insertion opening, the locking element being movable betveen a locked position and an unlocked position, and having an arresting pin, mounted in the locking element and radially displaceable between an arresting position and a release position, which axially arrests the locking element in its arresting position and axially releases it in its release position.

Abstract: A hand power tool, in particular a drill hammer or jackhammer, is disclosed, which has a guide tube (11), a tool holder (24) that can be attached interchangeably to the guide tube (11), and a locking device (23) that locks the tool holder (24) to the guide tube (11), the locking device being manually releasable by means of an axial displacement of a slide sleeve (34) oriented away from the tool holder (24). To achieve a compact connection construction, which is economical in production terms, between the interchangeable tool holder (24) and the hand power tool, the tool holder (24) is embodied as insertable by an end portion (241) into a guide portion (111) embodied on the front end of the guide tube (11), in the inner wall thereof (FIG. 1).

Abstract: The present invention relates to a drilling hammer comprising a hammer tube (13) that is rotationally drivable inside a housing (10), a striking tool (14) located in the hammer tube (13) and provided with a piston (15) that can driven with a reciprocating motion, and an operating mode change-over switch (35) for the “impact drilling” and “chiseling” operating modes. The hammer tube (13) is decoupled from its rotary drive when in the “impact drilling” operating mode and is secured in the housing (10) in a non-rotative manner when in the “chiseling” operating mode.