Abstract: The invention originates from a safety device, in particular for hand-held power tools, with a disk-shaped and rotating tool, and with a base body (12). It is recommended that the safety device include an energy-absorbing element (14) arranged on the base body (12).

Abstract: A tool-holding device for an insert tool (14) equipped with an at least essentially disk-shaped hub (42), in particular for a hand-guided angle grinder (32) or a hand-guided circular saw, having a drive device (12) that includes a leaf spring unit (58) and is able to clamp the insert tool (14) in the axial direction (64). The leaf spring unit (58) has at least one freely extending spring piece (110) that extends at least partially in the circumference direction (50, 52).

Abstract: An electrical machine has an armature with armature grooves for accommodating an armature winding and which is non-rotatably supported on an armature shaft, wherein at least one heat-conducting element is provided in the region of at least one end face of the armature.

Abstract: An insertion tool (12) for an angle grinder (2) that has a hub (16) with at least a first fastening means for fastening the hub (16) to a driving device (22) of the angle grinder (2). The first fastening means if located on a partial circle (54) with a radius (56) of between 12 mm and 25 mm.

Abstract: The invention relates to a gearing, in particular for portable electric power tools, preferably for angle grinders, comprising an automatic locking device (6, 15). According to the invention, provision is made for damping elements (20) to be integrated in the locking device module.

Abstract: An electric power tool includes an electric motor located in a housing (10) and a cooling device (16, 18, 20, 30, 32). The cooling device (16, 18, 20, 30, 32), at least in some regions, has a cooling conduit (30) that is closed off from an interior of the housing (10).

Abstract: The invention describes a handle including a grip element and a fastening element, which are situated spaced apart from each other by at least one damping element; at least one of the contact surfaces of the grip element or fastening element, which are oriented toward each other via the damping element, is embodied as profiled so that the contact surface is enlarged.

Abstract: A vibration damping device has a rotation element connectable to a drive shaft in a frictional, nonpositive way and provided with at least one chamber filled with a material selected from the group consisting of a pourable material and a fluid material and capable of absorbing vibration energy.

Abstract: The invention describes a handle for a hand-held machine tool comprising a grip element (20) and a fastening element (10) for fastening the handle to a housing of a hand-held machine tool, wherein the fastening element (10) partially protrudes into the grip element (20) and a damping element (30) is provided between the grip element (20) and the fastening element (10), and wherein the fastening element (10) forms an undercut (12, 15) in the grip element (20).

Abstract: A tool-handling device for an insert tool(14) equipped with an at least essentially disk-shaped hub (42), in particular for a hand guided angle grinder (32) or a hand-guided circular saw, having a drive shaft (16) and a drive device (12) equipped with at least one locking element(20) that is supported so that it is able to move in relation to a spring element (18) in order to fix the insert tool (14) in a form-locked manner in the circumference direction (50, 52). The drive shaft (16) has at least one form-locking element (100) formed onto it in a non-cutting manner in order to connect it in a form-locked manner in the circumference direction (50, 52) to a drive torque-transmitting mechanism of the drive device (12).

Abstract: The invention is based on a handheld power saw, having a coupling means (10) for retaining and driving a saw blade (12), and having a guide assembly (14) for guiding an oscillating motion (16) of the saw blade (12). It is proposed that the guide assembly (14) includes at least one lateral bracing means (18, 18?) for shielding the coupling means (10) from shear forces acting on the saw blade (12).

Abstract: The invention relates to a toothed wheel of a gear drive, particularly for electric hand machine tools, comprising a toothing and a damping element made of an elastic material, the element being disposed in a recess of the toothed wheel. The object of the invention is to improve the effectiveness and the operational safety of the damping element on a toothed wheel with little effort in order to increase the service life of the gear drive. The task is solved by the toothed wheel (1) having a recess (5) penetrating the toothing (2).

Abstract: The invention is based on a protective hood fastening device having a fastening element (12a-12n) for fastening a protective hood (14a-14n) which is intended for partly enclosing a rotating application tool on a body (16a-16n) of an electric tool (10a-10n). It is proposed that the fastening element (12a-12n) comprise at least one latching element (18a-18n) for locking the protective hood (14a-14n) against rotation relative to the body (16a-16n) of the electric tool (10a-10n).

Abstract: The present invention relates to a portable power tool with a motor housing (22a, 22b, 22c, 22d, 68) and a housing cover (26a, 26b, 26c, 26d, 72) that is attached to the motor housing (22a, 22b, 22c, 22d, 68). It is provided that the portable power tool includes insulation means (44a, 44b, 44c, 44d, 70a, 70b) adjacent to the motor housing (22a, 22b, 22c, 22d, 68) and the housing cover (26a, 26b, 26c, 26d, 72), which are guided through a guide means (50a, 50b, 50c, 50d, 52a, 52b, 52d, 92) in the direction toward the motor housing (22a, 22b, 22c, 22d, 68) and/or the housing cover (26a, 26b, 26c, 26d, 72).

Abstract: A handle includes a handle sleeve and a handle core, the handle core includes a fastening element on one end and extends to the end of the handle sleeve opposite to the fastening element, an intermediate space is located between the handle sleeve and the handle core, and at least one dampening element is provided in the intermediate space, and the handle core includes a contactless overhanging section in the handle sleeve.

Abstract: In a method for shutting off a drive motor (12) of a power tool that drives a tool, the drive motor (12) is shut off as a function of a variable threshold value (E1) if the tool jams. The threshold value (E1) is determined in at least one predetermined time interval (T1) as a function of a current load speed (n1) and a no-load speed (n0).

Abstract: A machine tool and a tool include an automatic balancing device, with a first balancing mass located such that it is movable relative to the shaft of the machine tool in all radial directions and in the circumferential direction, that may be started rotating via the rotation of the shaft, and that, during rotation, exerts a force on the shaft in the radial direction.

Abstract: In an armature packet (1) for an electric motor, having a plurality of armature laminations (2, 3), in each of which a plurality of winding slots (4) for receiving an armature winding (5) are embodied, and the winding slots (4) of adjacent armature laminations (2, 3) are located in alignment with one another and form a conduit (6), a better positional fixation of the armature winding (5) is attained by providing that the winding slots (4), associated with one conduit (6), of different armature laminations (2, 3) have different geometries. The same is attained by providing that at least some of the winding slots (4) each have an influx conduit (11), each of which discharges into its region oriented toward the center of the armature packet (1).

Abstract: In a handheld power tool, including a first housing part and a second housing part as well as a damping element between the first housing part and the second housing part, the damping element is connectable to the first housing part and the second housing part, and the handheld power tool further has at least one securing element, which is connectable to the first housing part and the second housing part.

Abstract: In a hand power tool, having at least one first housing part for receiving at least one electric motor and at least one second housing part for receiving at least one gear, the electric motor and the gear are connected to one another, and the first housing part and the second housing part are connected, and in the connection region between the first housing part and the second housing part, at least one damping element is provided.