Abstract: The invention relates to a spindle drive for a closure element of a motor vehicle, which spindle drive has a spindle/spindle nut mechanism which has a spindle and a spindle nut, wherein a motor-side drive portion has a drive unit with a drive motor and the spindle, wherein the spindle is connected downstream of the drive motor, wherein a spindle-nut-side drive portion of the spindle drive has the spindle nut, wherein the spindle drive has a drive housing with at least one housing tube which is fixed axially with respect to the motor-side drive portion, wherein a guide tube is arranged radially within the housing tube, which guide tube is fixed axially with respect to the motor-side drive portion and axially guides a drive component of the spindle drive during the drive movements.

Abstract: Drive apparatus for a closure element of a vehicle. The drive apparatus has a drive train with two drive sections, each having a drive connection. The drive sections are linearly movable with respect to each other in order to generate linear drive movements between the drive connections along a geometric axis between a retracted position and an extended position. An end stop is provided to limit the drive movement between the drive connections to the extended position, wherein the end stop has end stop faces movable toward each other on the drive sections and a damping device which, during a drive movement into the end stop, damps the drive movement in a manner which is dependent on its speed. The damping device has a damping element which, during the drive movement, is deformable by an axial impact of the end stop faces on each other or on an intermediate element.

Abstract: A spindle drive for a closure element of a vehicle is provided, wherein the spindle drive has a spindle/spindle nut mechanism, which has a spindle and a spindle nut meshing therewith for generating linear drive movements along a geometric spindle axis between a spindle-side drive connection and a spindle nut-side drive connection for channeling the drive movements, wherein the spindle is axially movably guided in a spindle guide tube which is axially fixedly connected to the spindle nut for conjoint rotation and which is axially fixedly coupled to the spindle nut-side drive connection. It is proposed that the spindle nut is axially inserted over its entire length into a portion of the spindle guide tube that is formed in such a way as to be in form-fitting engagement with the spindle nut in both directions along the geometric spindle axis and in the circumferential direction around the geometric spindle axis.

Abstract: The invention relates to a spindle drive for a closure element of a motor vehicle, which spindle drive has a spindle/spindle nut mechanism which has a spindle and a spindle nut, wherein a motor-side drive portion has a drive unit with a drive motor and the spindle, wherein the spindle is connected downstream of the drive motor, wherein a spindle-nut-side drive portion of the spindle drive has the spindle nut, wherein the spindle drive has a drive housing with at least one housing tube which is fixed axially with respect to the motor-side drive portion, wherein a guide tube is arranged radially within the housing tube, which guide tube is fixed axially with respect to the motor-side drive portion and axially guides a drive component of the spindle drive during the drive movements.

Abstract: The disclosure relates to a frictionally locking arrangement for a drive, which drive has an advancing gear mechanism, the frictionally locking arrangement having a carrier and at least one frictionally locking unit. In some embodiments at least one frictionally locking unit has a frictionally locking lever which is mounted with a first lever end pivotably on the carrier, which frictionally locking lever, on a first lever section which is spaced apart from the first lever end, has a force introduction device which is mounted on the carrier and is configured to introduce a force into the frictionally locking lever in a manner which is spaced apart from the first lever end, and which frictionally locking lever, on a second lever section which is arranged between the first lever end and the first lever section, has a first frictional element.