Abstract: A clamping device for fastening a tool disc to a power tool, wherein the clamping device has a screw provided for being screwed into a drive spindle of the power tool in order to fasten the tool disc. The screw is mounted in a coupling module of the clamping device, wherein the coupling module has a first flange and an internal contour, wherein the clamping device gives rise to a form-fitting fastening of the tool disc to the power tool, and wherein the second flange prevents undesired loosening or tightening of the screw. A power tool having a drive spindle, to which a tool disc can be fastened by the proposed clamping device, and to a method for fastening a tool disc to such a power tool.

Abstract: A switch for a power tool, the switch including a printed circuit board and a silicone layer. The printed circuit board has a first microswitch, while the silicone layer has a blocking switch, the silicone layer being present arranged on the printed circuit board such that an actuation of the blocking switch leads to an actuation of the first microswitch. Furthermore, the printed circuit board can have a second microswitch, and the silicone layer can have a membrane, an actuation of the membrane leading to an actuation of the second microswitch. A method for switching on a power tool, the power tool including a switch having a printed circuit board and a silicone layer. An ergonomically advantageous switch is also provided, which switch is furthermore well protected against dust, dirt and/or water and enables inadvertent switching on of the power tool to be effectively avoided.

Abstract: A clamping device (10) for the axial (AR) clamping of a tool disk (300) on a flange (30) associated with a drive spindle (20) of a hand-held power tool (100), wherein the clamping device (100) has a screw (2), which is to be screwed into an internal thread (22) of the drive spindle (20) to securely clamp the tool disk (300), wherein the screw (2) is mounted in a coupling module (1) of the clamping device (10), wherein the coupling module (1) has an internal contour (16) which is paired or can be paired positively with the drive spindle (20) for conjoint rotation in the circumferential direction (U).

Abstract: A method for controlling a machine tool-having an operating switch and a lock switch including: activating the operating switch by exerting a force in a direction onto the operating switch for switching over the machine tool from a deactivation mode to an activation mode, so that the drive is adjusted to a first predetermined rotation speed value; deactivating the operating switch, so that no more force is exerted in direction onto the operating switch, wherein the drive is adjusted in the first predetermined rotation speed value for a predetermined time period; activating the lock switch within the first predetermined time period after deactivation of the operating switch, so that the drive is adjusted to a predetermined second rotation speed value; and activating the operating switch by exerting a force in a direction onto the operating switch or activating the lock switch by exerting a force in a direction onto the lock switch for switching over the machine tool from the activation mode to the deactivat

Abstract: An operating device (1) for a power tool, including at least one first and second switching element (40, 50), the first switching element (40) being settable to a first and a second mode, and the second switching element (50) being settable to a first and a second mode, the first switching element (40) including at least one first signaling means (21) for the particular signaling of the first or second mode, and the second switching element (50) including at least one second signaling means (22) for the particular signaling of the first or second mode. The operating device is designed in such a way that the second switching element (50) is settable from the first mode to the second mode only when the first switching element (40) is set from the first mode to the second mode.

Abstract: A method for controlling a machine tool-having an operating switch and a lock switch including: activating the operating switch by exerting a force in a direction onto the operating switch for switching over the machine tool from a deactivation mode to an activation mode, so that the drive is adjusted to a first predetermined rotation speed value; deactivating the operating switch, so that no more force is exerted in direction onto the operating switch, wherein the drive is adjusted in the first predetermined rotation speed value for a predetermined time period; activating the lock switch within the first predetermined time period after deactivation of the operating switch, so that the drive is adjusted to a predetermined second rotation speed value; and activating the operating switch by exerting a force in a direction onto the operating switch or activating the lock switch by exerting a force in a direction onto the lock switch for switching over the machine tool from the activation mode to the deactivat

Abstract: A clamping device (10) for the axial (AR) clamping of a tool disk (300) on a flange (30) associated with a drive spindle (20) of a hand-held power tool (100), wherein the clamping device (100) has a screw (2), which is to be screwed into an internal thread (22) of the drive spindle (20) to securely clamp the tool disk (300), wherein the screw (2) is mounted in a coupling module (1) of the clamping device (10), wherein the coupling module (1) has an internal contour (16) which is paired or can be paired positively with the drive spindle (20) for conjoint rotation in the circumferential direction (U).

Abstract: An operating device (1) for a power tool, including at least one first and second switching element (40, 50), the first switching element (40) being settable to a first and a second mode, and the second switching element (50) being settable to a first and a second mode, the first switching element (40) including at least one first signaling means (21) for the particular signaling of the first or second mode, and the second switching element (50) including at least one second signaling means (22) for the particular signaling of the first or second mode. The operating device is designed in such a way that the second switching element (50) is settable from the first mode to the second mode only when the first switching element (40) is set from the first mode to the second mode.

Abstract: A dust hood for a grinding device equipped with a transmission extension housing for attaching the dust hood, the dust hood comprising a hood body for covering a circular grinding disk and comprising a skirt running around a periphery (U) of the hood body for at least partially sealing the hood body in relation to a surface (UG) which is to be machined by means of the grinding disk, and comprising a suction connection via which removed surface material can be suctioned from the hood body. The dust hood has an adjusting ring, by means of which the hood body can be adjusted relative to the transmission extension housing and/or to the adjusting ring, preferably in an axial direction (A) with respect to the rotational axis (R) of the grinding disk.

Abstract: A hand-held power tool guiding device is disclosed. The device includes a receptacle element for receiving the power tool, a remote control device for operating the power tool, and a guiding and support device, which is designed to be adjustable with an adjusting lever. The adjusting lever has a handle which is configured to be rotatable relative to the adjusting lever around an axis of rotation.

Abstract: A hand-held power tool guiding device and method is disclosed. The device includes a receptacle element for receiving the power tool, a remote control device for operating the power tool, and a transmission device for transmitting the movement of the remote control device to the power tool. The transmission device has a switch actuator and a connecting element, where the switch actuator is adjustable into a standby position during insertion of the power tool into the receptacle element.

Abstract: A hand-held power tool guiding device and method is disclosed. The device includes a receptacle element for receiving the power tool, a remote control device for operating the power tool, and a transmission device for transmitting the movement of the remote control device to the power tool. The transmission device has a switch actuator and a connecting element, where the switch actuator is adjustable into a standby position during insertion of the power tool into the receptacle element.

Abstract: A hand-held power tool guiding device is disclosed. The device includes a receptacle element for receiving the power tool, a remote control device for operating the power tool, and a guiding and support device, which is designed to be adjustable with an adjusting lever. The adjusting lever has a handle which is configured to be rotatable relative to the adjusting lever around an axis of rotation.

Abstract: A hand-held power tool has a drive spindle (2) rotatable about a rotational axis (A) and provided at its free end with a clamping flange (3) and a locking thread (4), a locking nut (7) tightenable on the locking thread (4) for securing a disc-shaped tool (5) between the clamping flange (3) of the drive spindle (2) and its clamping surface (6), and a safety spring (9) located between the disc-shaped tool (5) and an inner recess (8) formed in the clamping surface (6) of the locking nut (7), radially preloaded against the locking thread, and having at least one radial, outwardly projecting nose (10), with the disc-shaped tool (5) having at least one, opening radially inwardly and axially extending groove (11) associated with the at least one nose (10).

Abstract: A cover device for a power tool with at least one disc-shaped working tool (6), includes first and second cover parts (12, 22) and a locking mechanism (41) for releasably pivotally positioning the second cover part (22) relative to the first cover part (12) and having a locking element (46) provided on one of the first and second cover parts (12, 22) and engageable with a counter-locking element (23) provided on another of the first and second cover parts (12, 22), and an actuation member (42) pivotally supported at a pivot point (45) on the one of the first and second cover parts (12, 22) and having an actuation section (43) and a locking section (44) extending at an angle from the actuation section (43), with the locking element (46) being provided at a free end of the locking section (44).

Abstract: A hand-held power tool includes a drive spindle (2) rotatable about a rotational axis (A) and provided at its free end with a clamping flange (3) and a locking thread (4) having at least one thread undercut (8), and a locking nut (7) tightenable on the locking thread (4) for securing a disc-shaped tool (5) between its clamping surface (6) and the clamping flange (3) of the drive spindle (2), with the thread undercut (8) having an axial length that corresponds to at least an axial length of an inner thread (9) of the locking nut (7).

Abstract: A hand-held power tool includes a drive spindle (2) rotatable about a rotational axis (A), a clamping flange (3) provided at a free end of the drive spindle (2) and having at least one inner thread (12) that in a mounted condition of the clamping flange (3) on the drive spindle (2), engages in a thread undercut (13) of the clamping flange (2), a locking pin likewise provided at the free end of the drive spindle (2) and having a locking thread (4), and a locking nut (7) tightenable on the locking thread (4) for securing a disc-shaped tool (5) between the clamping flange (3) and the clamping surface (6) of the locking nut (7), with the clamping flange (3) having in its axial region between the disc-shaped tool (5) and an inner recess (8) of the locking nut (7) in which the centering collar (9) of the clamping flange (3) can be partially received at least one radial, outwardly projecting nose (10), and with the disc-shaped tool (5) having at least one, opening radially inwardly and axially extending groove (11)

Abstract: A motorized power tool includes an output shaft (11) including a tool receptacle (13) for receiving a disc-shaped tool (7) and having an outer thread with a constant outer diameter (D) and that forms a first securing element (14) for a locking element (8), a centering section (16) adjoining the tool receptacle (13) and extending beyond a radial projection of the tool receptacle, and a second securing element (15) provided at the free end (12) of the output shaft (11) for receiving an attachment element (9) for securing a shaft extension (21) to the output shaft (11).