Abstract: A method for controlling an electric motor of a power tool having a receptacle for a tool, at least a current of the electric motor and/or a rotation speed of the electric motor during an impact operating mode of the electric motor being detected as a parameter, a driving time of the electric motor for the impact operating mode being specified as a function of the detected parameter. A method is also described for controlling an electric motor of a power tool having a receptacle for a tool for unscrewing a screw from a mating part.

Abstract: A method for controlling an electric motor of a power tool having a receptacle for a tool, at least a current of the electric motor and/or a rotation speed of the electric motor during an impact operating mode of the electric motor being detected as a parameter, a driving time of the electric motor for the impact operating mode being specified as a function of the detected parameter. A method is also described for controlling an electric motor of a power tool having a receptacle for a tool for unscrewing a screw from a mating part.

Abstract: A method for controlling an electric motor of a power tool having a receptacle for a tool, at least a current of the electric motor and/or a rotation speed of the electric motor during an impact operating mode of the electric motor being detected as a parameter, a driving time of the electric motor for the impact operating mode being specified as a function of the detected parameter. A method is also described for controlling an electric motor of a power tool having a receptacle for a tool for unscrewing a screw from a mating part.

Abstract: A percussion mechanism device, in particular for an impact wrench, includes a drivable drive shaft that has at least one guide groove, an output shaft, and a percussion unit that includes an anvil coupled with the output shaft in a rotationally fixed manner, a hammer, and at least one ball. The hammer is supported via the at least one ball along the at least one guide groove on the drive shaft and includes an at least regionally concavely curved ball guidance area that has an axial clearance from the at least one ball at a radially innermost point that is greater than a radial clearance between the at least one ball and a radially innermost point of a concave ball guidance area of the at least one guide groove.

Abstract: In an impact driver including an impact mechanism for percussive driving of an output drive shaft on which is provided a tool receptacle for receiving an inserted tool, the tool receptacle is embodied as a clamping chuck, a permanent connection being embodied between the clamping chuck and the output drive shaft in order to prevent at least tool-free detachment of the clamping chuck from the output drive shaft.

Abstract: A percussion mechanism device, in particular for an impact wrench, includes a drivable drive shaft that has at least one guide groove, an output shaft, and a percussion unit that includes an anvil coupled with the output shaft in a rotationally fixed manner, a hammer, and at least one ball. The hammer is supported via the at least one ball along the at least one guide groove on the drive shaft and includes an at least regionally concavely curved ball guidance area that has an axial clearance from the at least one ball at a radially innermost point that is greater than a radial clearance between the at least one ball and a radially innermost point of a concave ball guidance area of the at least one guide groove.

Abstract: In a handheld power tool having a drive motor operable via a manual switch for driving a drive body which is associated with a mechanical percussion mechanism and coupled to a percussion member for driving an output shaft provided with a tool receptacle, and an operating mode switchover element which is designed to switch over between a normal operation and a percussion operation of the percussion mechanism and which is coupled to the drive body being associated with the drive body, an operating device is provided for operating the operating mode switchover element which is coupled to the manual switch and which is designed to enable a switchover of the operating mode switchover element between normal operation and the percussion operation of the percussion mechanism by operating the manual switch.

Abstract: In an impact driver including an impact mechanism for percussive driving of an output drive shaft on which is provided a tool receptacle for receiving an inserted tool, the tool receptacle is embodied as a clamping chuck, a permanent connection being embodied between the clamping chuck and the output drive shaft in order to prevent at least tool-free detachment of the clamping chuck from the output drive shaft.

Abstract: A method for controlling an electric motor of a power tool having a receptacle for a tool, at least a current of the electric motor and/or a rotation speed of the electric motor during an impact operating mode of the electric motor being detected as a parameter, a driving time of the electric motor for the impact operating mode being specified as a function of the detected parameter. A method is also described for controlling an electric motor of a power tool having a receptacle for a tool for unscrewing a screw from a mating part.

Abstract: A handheld machine tool having an output shaft on which a tool holding fixture is developed, which has a multi-faced inner receptacle and a multi-faced outer receptacle, the multi-faced inner receptacle to connect to a tool insert, which can be locked using a locking device assigned to the tool holding fixture; the locking device having a locking sleeve which is displaceable for unlocking the tool insert against a spring force applied by an associated spring element in an axial direction facing away from the handheld machine tool, from a locking to an unlocking position, the locking sleeve has an operating element and a holding element connected to each other via a threaded connection, the holding element driven by the associated spring element in the direction of the locking position of the locking sleeve and the operating element enables displacement of the locking sleeve from the locking to the unlocking position.

Abstract: A machine tool device, particularly a hand-held machine tool device, includes at least one screw that is configured to secure at least one metal component to at least one additional component in a form-fitting manner. The machine tool further includes an electrical insulating unit that is configured to prevent the conduction of current at least between the metal component and the screw.

Abstract: A handheld machine tool having an output shaft on which a tool holding fixture is developed, which has a multi-faced inner receptacle and a multi-faced outer receptacle, the multi-faced inner receptacle to connect to a tool insert, which can be locked using a locking device assigned to the tool holding fixture; the locking device having a locking sleeve which is displaceable for unlocking the tool insert against a spring force applied by an associated spring element in an axial direction facing away from the handheld machine tool, from a locking to an unlocking position, the locking sleeve has an operating element and a holding element connected to each other via a threaded connection, the holding element driven by the associated spring element in the direction of the locking position of the locking sleeve and the operating element enables displacement of the locking sleeve from the locking to the unlocking position.

Abstract: A hand power tool includes a drive spindle, a mechanical impact mechanism, and a spindle lock device. The mechanical impact mechanism has an impact body having at least two drive cams. The spindle lock device has a spindle roller carrier disposed on the drive spindle. At least two spindle rollers are disposed on the spindle roller carrier. The spindle lock device is connected via a coupling member to the mechanical impact mechanism. The coupling member is disposed between the impact body and the spindle roller carrier, in the axial direction of the drive spindle. The coupling member is configured to effect rotary driving of the spindle roller carrier, upon rotary driving by the impact body, when the hand power tool is in a normal mode.

Abstract: A machine tool device, particularly a hand-held machine tool device, includes at least one screw that is configured to secure at least one metal component to at least one additional component in a form-fitting manner. The machine tool further includes an electrical insulating unit that is configured to prevent the conduction of current at least between the metal component and the screw.

Abstract: In an impact driver including an impact mechanism for percussive driving of an output drive shaft on which is provided a tool receptacle for receiving an inserted tool, the tool receptacle is embodied as a clamping chuck, a permanent connection being embodied between the clamping chuck and the output drive shaft in order to prevent at least tool-free detachment of the clamping chuck from the output drive shaft.

Abstract: In a handheld power tool having a drive motor operable via a manual switch for driving a drive body which is associated with a mechanical percussion mechanism and coupled to a percussion member for driving an output shaft provided with a tool receptacle, and an operating mode switchover element which is designed to switch over between a normal operation and a percussion operation of the percussion mechanism and which is coupled to the drive body being associated with the drive body, an operating device is provided for operating the operating mode switchover element which is coupled to the manual switch and which is designed to enable a switchover of the operating mode switchover element between normal operation and the percussion operation of the percussion mechanism by operating the manual switch.

Abstract: A hand-held power tool includes a housing with a tool fitting for receiving an insertion tool, and at least one illuminating element for illuminating the working area of the hand-held power tool; wherein the at least one illuminating element is located in the region of the tool fitting.

Abstract: A power tool having an impact mechanism including a rotary shaft defining a tool axis of rotation, an impact member moveable along the tool axis of rotation, a support member fixed in position relative to the tool axis of rotation, a biasing member for urging the impact member away from the support member, and at least one axial stop member positioned between the impact member and the support member. According to the invention, the distance between the axial stop member and the tool axis of rotation is more than the distance between the biasing member and the tool axis of rotation.

Abstract: A hand-held power tool includes a housing with a tool fitting for receiving an insertion tool, and at least one illuminating element for illuminating the working area of the hand-held power tool; wherein the at least one illuminating element is located in the region of the tool fitting.

Abstract: A hand-held power tool includes a housing with a tool fitting for receiving an insertion tool, and at least one illuminating element for illuminating the working area of the hand-held power tool; wherein the at least one illuminating element is located in the region of the tool fitting.