Abstract: A handle device for releasable fastening on a hand-held power tool (10), wherein the handle device has a clamping ring (41) with a clamping mount (42) for receiving a fastening portion (20) of the hand-held power tool (10) and also has a handle (60), which projects from the clamping ring (41), wherein a clamping-actuation grip (78), which can be activated manually by the operator (BE), can be used to adjust the clamping mount (42) between a clamping position (K), and a release position (L), and wherein the handle device has an axial-form-fitting body (80), which is mounted in a movable manner in relation to the clamping mount (42) and has an axial-form-fitting contour (81) for engagement in a mating axial-form-fitting contour (25) of the fastening portion of the hand-held power tool.

Abstract: A mobile handheld machine saw (10) having a saw assembly (11), which has a saw toolholder (14) for a saw tool (15), in particular a saw blade, and a saw drive motor (12) for driving the saw toolholder (14), and having a guide device (17), which has a guide body (18) having a guide surface (19) for guiding the handheld machine saw (10) along a working direction (AR) on a workpiece (W) and on its upper side (19A) opposite to the guide surface (19), the saw toolholder (14) is movably mounted by means of a saw depth setting bearing (16) between an upper depth setting position (UT) in which the saw toolholder (14) is adjusted closer to the guide surface (19) than in the upper depth setting position (OT).

Abstract: A hand-held power tool for machining a workpiece, comprising a drive motor, a tool holder, which can be driven by the drive motor, and which is for a working tool for machining the workpiece, and a guide element having a guide surface for guiding the hand-held power tool on the workpiece in a working direction, wherein the tool holder is mounted via a bearing arrangement such that it moves relative to the guide element and the tool holder can be driven by a servo motor arrangement, wherein the hand-held power tool can be swivelled via the bearing arrangement about at least one adjusting swivel axis passing through the guide surface at an angle, in particular at a right angle, for the relative adjustment of the tool holder relative to the guide element, wherein the hand-held power tool has a control device for controlling the servo motor arrangement.

Abstract: A bench saw, including a support structure with a lay-on section which provides a lay-on surface, as well as a saw blade which engages through an opening of the lay-on section, so that at least a part of the saw blade is located below the lay-on section lower side, a housing arrangement which is located below the lay-on section lower side and which surrounds the part of the saw blade which is located below the lay-on section lower side, where the saw blade is pivotable together with the housing arrangement relative to the lay-on section, in order to adjust an angle between a cutting plane of the saw blade and the lay-on surface. The bench saw further includes a cover flap which covers a gap between the housing arrangement and the lay-on section lower side, the gap arising on pivoting the housing arrangement.

Abstract: A tool device, in particular a saw device, having a tool for processing a workpiece located in a working area. The tool device includes a tool braking device for braking a tool rotary movement of the tool, and a multi-joint arrangement by means of which the tool can be pivoted selectively in a feed direction into the working area or in a removal direction out of the working area. The multi-joint arrangement is designed to, while maintaining the pivotability of the tool, absorb and/or redirect forces occurring during braking of the tool rotary movement, so that the tool is not pivoted in the feed direction by the forces occurring during braking of the tool rotary movement or is pivoted in the removal direction by the forces occurring during braking of the tool rotary movement.

Abstract: A hand-held power tool (10), in particular a grinding machine or cutting machine, having a machine housing (20) in which a drive motor (11) for driving a tool holder (13) for a work tool (14), in particular a grinding tool or cutting tool, is accommodated, wherein the machine housing (20) has a drive housing part (30) and a handle housing part (40), wherein the drive housing part (30) has the tool holder (13) drivable by the drive motor (11) and the handle housing part (40) has a grip section (25) to be grasped by an operator, wherein the handle housing part (40) protrudes from the drive housing part (30) in the direction of a machine longitudinal axis (ML), wherein the handle housing part (40) is mounted on the drive housing part (30) in a mounted state.

Abstract: A mobile machine tool for processing a surface of a workpiece or of a room having a working device which is mobile with respect to a surface of the workpiece or room, which working device includes a tool receptacle for a work tool driven or drivable by a drive motor and/or a coating device having a coating tool for coating the surface, wherein the working device includes a suction device for suctioning the working device onto the surface by means of at least one force component oriented in a normal direction of the surface, wherein the suction device has at least one valve for controlling an intake air flow and/or a negative pressure in a suction region of the working device for suction onto the surface, and wherein the at least one valve has a valve member which is adjustable between at least two valve positions in which a flow cross-section of the valve is different.

Abstract: A drive motor for a suction device (400) or a machine tool in the form of a hand-held power tool (200, 300) or a semi-stationary machine tool. The drive motor (20, 120) has a stator (80) with an excitation coil assembly (86) and a rotor (40, 140) with a motor shaft (30, 130) which is rotatably mounted about a rotational axis (D) on the stator or relative to the stator (80) by means of a bearing assembly (24A) and which passes through a shaft through-opening (42, 142) of a laminated core (41, 141) held on the motor shaft (30, 130). The rotor (40, 140) has a magnet assembly (50) with at least one permanent magnet such that the rotor (40, 140) can be rotated about the rotational axis (D) by energizing the excitation coil assembly (86).

Abstract: Circular saws having a blade that moves relative to a stationary base structure during operative use of the circular saws to cut a workpiece and methods of detecting a kickback condition of such circular saws. The circular saws include a base structure, a user-actuated assembly, an attachment structure, and a controller. The attachment structure is configured to permit constrained relative motion between the base structure and the user-actuated assembly in a motion direction and during operative use of the circular saw to cut the workpiece. A motion sensor is configured to generate a motion signal indicative of motion of the user-actuated assembly along the motion direction. The controller is programmed to initiate a kickback response of the circular saw responsive to the motion signal being indicative of a kickback condition of the circular saw.

Abstract: A sawing apparatus can have a drive shaft that is rotatable about a central axis for rotationally driving a saw blade. The apparatus includes an electrical rotary feedthrough for the electrically conductive connection of the drive shaft to a connection assembly. The electrical rotary feedthrough includes a first component having a contact section that tapers in the direction of a second component and the shell surface of said contact section forms a first contact surface. The second component has a receiving channel that extends along the central axis and the side surface of the receiving channel forms a second contact surface. The first contact surface lies against the second contact surface in sections. The receiving channel and the tapering contact section has a clearance for ruling out a purely axial abutment of the components. In addition, an electrical rotary feedthrough for a sawing apparatus, is described.

Abstract: A cyclone pre-separator for positioning on a particle collecting container, the cyclone pre-separator including a box-shaped housing and a cyclone unit arranged in the housing. The cyclone unit includes an air inlet, an air outlet, and a particle outlet arranged on a underside of the cyclone pre-separator, where the housing has an air inlet hose port connected to the air inlet and an air outlet hose port connected to the air outlet, and has lower housing couplers, adapted to provide a releasable, vertically tension-proof coupling to the particle collecting container, when the cyclone pre-separator is positioned on the particle collecting container.

Abstract: A sawing device containing a base part for supporting the sawing device on a base surface and a slide is provided. The slide is mounted on the base part so as to be displaceable in a translational manner via a linear guide. The sawing device includes a saw head which is rotatably mounted on the slide. A drive unit for rotationally driving a saw blade in a saw blade plane (S) is arranged on the saw head. In addition, at least one interface for selectively coupling an electrical energy storage device is arranged on the slide. The interface is electrically connected to the drive unit. Moreover, a saw assembly containing such a sawing device and at least one electrical energy storage device is presented. The electrical energy storage device is coupled to the sawing device via at least one interface.

Abstract: A connection device for the fluidic connection of a suction tube to a function unit. The connection device includes a first hollow-cylindrical connection section and a second hollow-cylindrical connection section. One of the connection sections is connectable or connected to the suction tube and the other connection section is connectable or connected to the function unit. One of the connection sections is located at least partly within the other connection section and with its outer periphery bears on the inner periphery of the other connection section, where the two connection sections are rotatably mounted, in order to provide a rotation compensation for the suction tube, and where an electrical connection for providing an antistatic function exists between the two connection sections. The first connection section includes a spring section which is deformable in the radial direction and with which the bearing contact on the second connection element takes place.

Abstract: An attachment for a portable power tool, in particular a screwdriver machine or drilling machine, wherein the attachment has a drive part with a drive element and an output part with an output element for driving a work tool, wherein the drive element is able to be coupled to a machine output element of the portable power tool in order to drive the attachment and is connected or coupled to the output element via a transmission for driving the output element, and wherein the drive part has, on a drive side, a fastening device for releasably fastening the attachment to the portable power tool for conjoint rotation with respect to an angle positioning axis. Provision is made for the output part to be rotatable about the angle positioning axis relative to the drive part into at least two mutually different angle positions.

Abstract: A handheld machine tool, in particular an impact driver, having a drive train for driving a tool receptacle, provided for receiving a tool, in particular a screwdriver tool, about a rotation axis, wherein the drive train has a drive motor, an output shaft element, on which the tool receptacle is arranged, and a drive shaft, which is drivable by the drive motor, for driving the output shaft element, wherein the output shaft element is rotatably mounted by means of an output pivot bearing and the drive shaft is rotatably mounted by means of a drive pivot bearing about the rotation axis in respect of a machine housing, and wherein the output shaft element is rotatably mounted by means of a shaft bearing arrangement on the drive shaft about the rotation axis. The shaft bearing arrangement has at least two shaft bearings, which are arranged adjacent to each other in relation to the rotation axis and differ by at least one mechanical property.

Abstract: Circular saws with lock assemblies are disclosed herein. The circular saws include a motor including a motor shaft configured to rotate about a shaft rotational axis. The circular saws also include an arbor configured to operatively attach a circular saw blade to the circular saw. The circular saws further include a switch configured to selectively apply an electric current to the motor and a switch lever configured to be selectively actuated, by a user of the circular saw and via an actuation force, to actuate the switch and direct the switch to apply the electric current to the motor. The lock assemblies include a switch lock, which defines a switch-locked configuration, in which the switch lock resists actuation of the switch lever by the user, and a switch-unlocked configuration, in which the switch lever is free to be actuated by the user.

Abstract: A sawing apparatus can have a drive shaft that is rotatable about a central axis for rotationally driving a saw blade. The apparatus includes an electrical rotary feedthrough for the electrically conductive connection of the drive shaft to a connection assembly. The electrical rotary feedthrough includes a first component having a contact section that tapers in the direction of a second component and the shell surface of said contact section forms a first contact surface. The second component has a receiving channel that extends along the central axis and the side surface of the receiving channel forms a second contact surface. The first contact surface lies against the second contact surface in sections. The receiving channel and the tapering contact section has a clearance for ruling out a purely axial abutment of the components. In addition, an electrical rotary feedthrough for a sawing apparatus, is described.

Abstract: Circular saws having a blade that moves relative to a stationary base structure during operative use of the circular saws to cut a workpiece and methods of detecting a kickback condition of such circular saws. The circular saws include a base structure, a user-actuated assembly, an attachment structure, and a controller. The attachment structure is configured to permit constrained relative motion between the base structure and the user-actuated assembly in a motion direction and during operative use of the circular saw to cut the workpiece. A motion sensor is configured to generate a motion signal indicative of motion of the user-actuated assembly along the motion direction. The controller is programmed to initiate a kickback response of the circular saw responsive to the motion signal being indicative of a kickback condition of the circular saw.

Abstract: A closure device for closing a particle capture volume, in particular a bag or a container, including an access element with an access element opening for providing an access to the particle capture volume, a closure slide which can be selectively displaced relative to the access element into a release position or into a closure position. In the release position the closure slide releases the access element opening and in the closure position closes the access element opening, and a locking mechanism for locking the closure slide in the closure position with respect to the access element, where the locking mechanism 6 for unlocking requires a defined unlocking element which is separate from the locking mechanism.

Abstract: Handheld power tools with kickback detection and methods of detecting a kickback condition of a handheld power tool are disclosed herein. The methods include moving an implement of the handheld power tool within an implement motion plane and in detecting motion of the handheld power tool. The methods also include determining that the kickback condition exists based, at least in part, on the motion of the handheld power tool. In some embodiments, the handheld power tool is a circular saw that includes a user-actuated assembly. The user-actuated assembly includes a motion sensor, a controller, and a motor. The circular saw also includes a workpiece support and a pivot. The motion sensor is configured to detect acceleration along an acceleration detection axis that extends a threshold pivot axis-acceleration axis distance of at most 4 cm from a pivot axis of the pivot.