Abstract: The invention relates to a hand-held power tool comprising a tool housing and an electric motor housed in the tool housing and a battery pack (30) for supplying the electric motor with electrical energy. The battery pack (30) can be detachably locked with the tool housing and comprises a battery housing (28) in which the battery cells (10) are received. The invention is characterized in that damping elements (26) are provided between the battery housing (28) and the battery cells (10) and decouple the battery cells (10) from the battery housing (28) in a vibration-damping manner.

Abstract: The invention relates to an electrical hand tool device, in particular an angle grinder with a machine housing for holding a motor for the rotating drive of a drive shaft and a driven shaft connected with it via an angular gear for attaching a grinding tool at its free end, whereby a protective guard (12) that surrounds the grinding tool with a base body (14) at least partially and exhibits a protective guard neck (16) that is connected to the base body (14) and that can be detached together with said protective guard neck at a flange (20), which is positioned at the machine housing, and can be secured and locked in discrete adjustable rotational positions at the flange (20), whereby the protective guard (12) can be secured and locked at the flange (20) in a rotational position using a notch lever (18), and where for this purpose a ratchet cam (42) at the notch lever (18) reaches through an opening (40) in the protective guard (12), where a pivoting axis (22) of the notch lever (18) is arranged parallel to th

Abstract: The invention relates to an electrical hand tool device, particularly a drill, screwdriver, hammer drill, or percussion drill, with at least an optional rotating drive for a tool mountable in a tool receptor, with a motor housing (10) and a transmission housing that is separate from the motor housing (10) but connected with it, whereby the motor housing (10) is formed of two half-shells (12, 14) that essentially lie within a plane extending along the longitudinal axis of the electrical hand tool device and dividing the electrical hand tool device essentially into two symmetrical halves (12, 14) with their side edges matching each other, whereby a handgrip (30) is provided on the motor housing, and whereby the two half-shells (12, 14) are connected with each other by means of a clip (18) extending longitudinally holding them clamped together.

Abstract: The invention concerns an electric hand tool device comprising a drive motor and a driven shaft (36) for driving an electric tool, wherein a switchable planetary gear comprising two gear stages (12, 14) is provided between the drive motor and the driven shaft (36), wherein each gear stage (12, 14) comprises a ring gear (20, 22) with an inner toothing, and a sun wheel (16, 18) with an outer toothing for driving the gear, with which the planet wheels (30, 32) of the respective gear stage (12, 14) mesh, wherein the outer diameters of the sun wheels (16, 18) and the inner diameters of the ring gears (20, 22) of the two gear stages (12, 14) are different, the planet wheels (30, 32) of a gear stage (12, 14) each being held on one respective planet carrier (26, 28), and the output is realized via the planet carrier (28) of a gear stage (12), wherein the ring gears (20, 22) of the gear stages (12, 14) are connected to each other such that they cannot rotate relative to each other, and a switching means (38?) is in lo

Abstract: A miter saw with angular adjustment has a carrier (1), a turntable (3) which is able to turn relative to the carrier (1) and which forms a workpiece support surface (2), and a turntable fixing device (8) for fixing the turntable (3) relative to the carrier (1) in certain reproducible angular positions. The miter saw turntable fixing device (8) enables adjustment of the angular position relative to the carrier in a manner which is continuous and mechanically reproducible.

Abstract: The invention concerns an electric hand tool device, in particular, a percussion drill or a drill hammer, comprising a spindle (10) that can be driven by a drive motor and cooperates at one end (12) with a tool support, and a percussion means (24) for axially moving the spindle (10) in a percussion position, wherein an adjusting means (42) is provided for adjusting the spindle (10) between the percussion position and a rotary position, the adjusting means (42) comprising a switch ring (44) which is disposed on the spindle (10) and has cam configurations (46,48) on both end faces thereof, wherein one of the cam configurations (46) can engage in a corresponding cam configuration (52) which is fixed to the housing through turning the switch ring (44), and the second cam configuration (48) can be brought into engagement with a corresponding cam configuration (60) of a pressure piece (54) which can be axially moved on the spindle (10), in order to adjust the percussion means (42) to a percussion position.

Abstract: The invention relates to an electric driven tool device, especially an electric hand-held tool device, comprising an asynchronous electric motor (2) or a brush-less synchronous electric motor and a computer-controlled motor control device (8). The invention is characterized by a frequency converter (4) which can be controlled by the motor control device, whereby a motor (drive) voltage can be applied to the motor (2), and with a current detector (10) which co-operates with the motor control device (8) and detects the motor current. The motor control device (8) is embodied in such a manner that, in a first phase of the motor operation, the frequency of the motor current is maintained in a constant manner up to a limiting current I(grenz) and, in a second phase of the motor operation, at loads above the load at which the motor current reaches the limiting current I(grenz), the frequency of the motor current is lowered in such a manner that the motor current is maintained at a constant value.

Abstract: The invention concerns an electric motor-driven screw driving or drilling tool device with a planetary gear (4), comprising a ring gear (6) and planet wheels (8) mating with the ring gear, wherein the planet wheels are driven to roll on the ring gear, and the axles (10) of the planet wheels drive a drive shaft, and with a torque adjusting means (34), wherein the ring gear (6) can be locked and fixed relative to the housing via locking bodies (16) which are pretensioned by springs in a radially inward direction, the locking bodies (16) being radially outwardly displaceable when a switch-off torque has been exceeded, such that the ring gear (6) can be rotated relative to the housing, and the drive shaft is no longer driven.

Abstract: The invention concerns a motor-driven drilling hammer with percussion and rotary drive, and a drill sleeve (14) which is disposed in a housing and is drivingly connected to a tool or a chuck for receiving the tool. In order to improve vibration damping, the drilling hammer is designed such that the drill sleeve (14) is connected on its outer periphery (30) to a spring means (32) of an elastomeric material (34) which has a wall thickness of 1 to 10 mm, and wherein the spring means (32) holds a damping mass (36) which can be deflected relative to the drill sleeve (14) in the peripheral direction and in the longitudinal direction (20) of the drill sleeve (14) due to the elasticity of the spring means (32), thereby effecting damping and reduction of vibration.

Abstract: Cutting saw with a workpiece supporting surface, a holder mounted on the carrier, a saw assembly, having a motor and saw blade, being pivotably attached to the holder above the carrier, and a dust catching device mounted on the saw assembly. The saw assembly can pivot around a transverse axis out of a raised rest position into a lowered sawing position. The dust catching device has at least one dust outlet opening on a dust outlet side and has at least one dust inlet opening which faces a dust-throwing side of the saw blade on a dust inlet side. It is proposed that the dust catching device be made of a flexurally stiff material on at least the dust inlet side and that at least a part of the dust catching device is movable at least on the dust inlet side.

Abstract: The invention concerns a rechargeable battery pack (20), in particular, for use with electrical hand tool devices, comprising a first and a second charging connection (24, 26), and a third control connection (28), all three being connectable to a charging device (46) for producing a charging connection, and with a calculating means (30) which can be addressed via an interface circuit (32), wherein the interface circuit uses the third control connection (28). In order to prevent destruction of the rechargeable battery pack due to erroneous charging, the invention proposes provision of a non-linear component (34) in the interface circuit (32) which, upon control of the interface circuit (32) by the charging device (46), can be distinguished from an NTC component, thereby permitting detection of the rechargeable battery type when the calculating means (30) provides no identification information in response to control by the charging device (46).

Abstract: A machine tool, especially a band saw, with a support and a machining table which forms a work rest surface and which is supported on the support, the machining table being pivotabe out of a base position around a virtual pivoting axis defined by an arc-shaped link slot in at least one direction, the link slot being provided on the machining table or on the support. The machining table is supported and guided on the support by a bearing means in the radial direction, the bearing means engaging the link slot and being arranged on the support or the machining table, and the machining table being fixed in the axial direction on the support. The bearing means supports and guides the machining table not only in the radial direction on the support, but also fixes the machining table in the axial direction on the support.

Abstract: A cutoff/milling device with a motor-driven cutoff/milling element, a work support surface or a guide surface, and a light projection device, the light projection device projecting a light beam onto a workpiece which is located on the work support surface or under the guide surface such that the light beam marks the cutting/milling position or cutting/milling path on the workpiece. The light projection device has a switch for activation of the light projection in response to mechanical vibration produced either by operating of the device or manual knocking on the cutoff/milling device.

Abstract: A miter saw with angular adjustment has a carrier (1), a turntable (3) which is able to turn relative to the carrier (1) and which forms a workpiece support surface (2), and a turntable fixing device (8) for fixing the turntable (3) relative to the carrier (1) in certain reproducible angular positions. The miter saw turntable fixing device (8) enables adjustment of the angular position relative to the carrier in a manner which is continuous and mechanically reproducible.

Abstract: Cutting saw with a workpiece supporting surface, a holder mounted on the carrier, a saw assembly, having a motor and saw blade, being pivotably attached to the holder above the carrier, and a dust catching device mounted on the saw assembly. The saw assembly can pivot around a transverse axis out of a raised rest position into a lowered sawing position. The dust catching device has at least one dust outlet opening on a dust outlet side and has at least one dust inlet opening which faces a dust-throwing side of the saw blade on a dust inlet side. It is proposed that the dust catching device be made of a flexurally stiff material on at least the dust inlet side and that at least a part of the dust catching device is movable at least on the dust inlet side.

Abstract: An electrical hand tool device (2) comprises a control electronics (8) and a transmitter and receiver (10) which is responsive in a wireless and contact-free fashion, and with a storage medium (12) in which an authorization code is stored, wherein an operation locking state and an operation release state can be differentiated, and with an external transmitter and receiver means (16) which is accommodated in a separate portable device (4), wherein communication with the transmitter and receiver means (10) of the electrical hand tool device can be produced in a defined fashion through actuation of the external transmitter and receiver means (16) to change the operation state, and communication is provided only to change the operation state and optionally to change the authorization code.

Abstract: A tensioning nut to secure a disk-shaped tool is threadable onto the threaded spindle of an electric tool, particularly an electric hand tool with run-out brake such as a right-angle grinder. The nut includes a nut body provided with a corresponding thread, with a coaxially-positioned pressure ring that may be tensioned with the disk-shaped tool. An axial bearing is positioned between the ring and the nut body. The nut further includes a disk member within the nut body for preventing rotation of the pressure ring. At least one engagement device is positioned between the disk member and the surrounding wall of the nut body. This blocking mechanism forms a uni-directional coupling, whereby a disengagement exists between the nut body in its tensioning direction and the disk member, and locking occurs between both of them in the opposing direction of the nut body relative to the disk member. Thus, loosening of the tensioning nut is prevented particularly during run-out of the rotating, disk-shaped tool.