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 housing has at least one housing shell enclosing an interior space and having two edges abutting each other at least one butt seam extending axially along a longitudinal axis, and first and second retaining elements provided on either side of said butt seam and acting on a particular side of the at least one housing shell on both sides of the butt seam with a force that is directed substantially radially toward the interior space.

Abstract: A device for a hand machine tool equipped with a hammer mechanism has a housing having an inner shell and an outer shell, which the inner shell and the outer shell are of one piece with each other at least in a subregion to be associated with the hammer mechanism; and also a hand machine tool is provided with such a device.

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: In a bearing device equipped with a fastening element for rotatably supporting a drive shaft of a hand tool unit, the fastening element has a heat conducting structure for conveying heat from a bearing region of the fastening element into a ventilation region of said bearing element, and in a fan apparatus provided with a fan impeller for cooling a drive unit of a machine tool the fan impeller is provided to cool a heat conducting structure which conveys heat from a bearing region of the hand machine tool into a ventilation region of the same.

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.

Abstract: In a multi-chamber device a chamber with lubricant is sealed off on a rotationally drivable component from a second chamber at a peg of a power tool, by at least one seal sliding at a contact face, and least one stationary component is provided in the chamber with lubricant before the contact face and surrounds a rotationally drivable component at least over a region of a circumference to substantially prevent turbulence in the lubricant in a region of the contact face.

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 has a tool, a hammer tube, a striking mechanism with a striker and an anvil with an integrated receptacle for the tool which is strikingly drivable in the receptacle, a blocking element connecting the tool and the anvil in an axial direction, and a toothing that connects the anvil with the hammer tube displaceably in an axial direction.

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 invention relates to a handle for an electric tool. The handle according to the invention has at least one detecting unit.

Abstract: A snap ring for shafts or bores is proposed, which is able to be axially fixed in position by snapping into place in a circumferential groove. The snap ring is provided with a centering ring which, when the case of the snap ring is installed in the circumferential groove, extends with radial clearance to an annular clip of the snap ring, which is disposed approximately concentrically to the circumferential groove.

Abstract: A supplemental handle for a hand-held machining tool (18), has at least one grip element (10, 12, 14, 16) that is connectable with a housing (26) of the hand-held machine (18) by means of an insulating device (20, 22, 24) for insulating oscillations. The insulating device (20, 22, 24) includes at least one bearing unit (28, 30, 32, 34), and the grip element (10, 12, 14, 16) is guided in at least one direction by means of the bearing unit (28, 30, 32, 34). The bearing unit (28) has at least one bearing bolt (26), about which the grip element (10, 12) is pivotable. The insulating device may include at least one torsion spring.

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: An electric combination hammer for use either as a drilling hammer or as a chisel hammer has a housing and a handle arranged on it. The housing has arranged on it an on-off switch having a pawl and a switch element for manually switching from drilling operation to chisel operation and vice versa. Also arranged is a catch device by which the pawl may be engaged in chisel operation and which also prevents a latched position from being engaged in drilling operation. The catch device has a catch bracket having two legs which are connected by a joint and may be brought into operative connection with a blocking element that blocks the joint in at least one pivot direction to establish the catch function. The catch device also has at least one catch element which may be brought into operative connection with another catch element that is in operative connection with the pawl.

Abstract: A drill hammer or riveter, includes a housing (11), in which a hammering mechanism (12) is accommodated that in an axially displaceably supported guide tube (13) has a reciprocating piston (16) and a striker (17), drivable by the piston (16) via an air cushion; the hammering mechanism (12) can be moved out of an idling position into a hammering position by an axial displacement of the guide tube (13); the guide tube (13) is urged by a restoring spring (27) in the direction of the idling position with a restoring force: and between the guide tube (13) and the housing (11), at least one damping and/or spring member (30, 36, 37) is provided, which in the hammering position of the guide tuber (13) has a spring or damping characteristic between the guide tube (13) and the housing (11) that deviates from the restoring spring (27) in the region of the idling position.

Abstract: A hand power tool has at least one safety coupling arranged in a drive train, the safety coupling having at least two coupling elements for transmitting a torque around a rotary axis, at least one arresting element which is spring loaded and held in a guiding passage for connecting the coupling elements with one another, a guiding element, a spring providing spring-loading of the arresting element and supported in direction of the arresting element by the guiding element, the guiding element being non rotatably guided relative to an axis extending parallel to the rotary axis by guiding surfaces in the guiding passage, and the arresting element unlatching and keeping in contact with a surface toward which the arresting element is urged by the spring in response to exceeding of predetermined torque.

Abstract: A hand power tool has a tool, a hammer tube, a striking mechanism having a striker and an anvil with an integrated receptacle for the tool which is strikingly drivable in the receptacle, and a blocking element which connects the tool and the anvil in an axial direction.

Abstract: A hand held power tool formed as a hammer drill has a strikingly drivable tool holder having a base body, at least one locking body with which the base body is form-lockingly connectable and through which the base body is fixable in a rotary direction in at least two positions, the locking body being formed as a ring-shaped component.

Abstract: An electric combination hammer for use either as a drilling hammer or as a chisel hammer has a housing (10) and a handle (12) arranged on it, in which is arranged an on-off switch (16) having a pawl (14) and having a switch element (18) for manually switching from drilling operation to chisel operation and vice versa and having a catch device (20, 22) by which the pawl (14) may be engaged in chisel operation and which prevents a latched position from being engaged in drilling operation.