Spindle assembly for a locking element, in particular a tailgate, of a motor vehicle

Abstract

The invention relates to a spindle arrangement for a locking element (2) of a motor vehicle (3), wherein the spindle arrangement (4) comprises a spindle-spindle nut drive (5) with a spindle (7) having an axially extending geometric spindle axis (6) and a spindle nut (8) meshing therewith for performing, in particular, linear adjustment movements along the geometric spindle axis (6) between a spindle-side connection (9) and a spindle nut-side connection (10), wherein the spindle (7) is axially fixedly coupled to the spindle-side connection (9) and the spindle nut (8) is axially fixedly connected to the spindle guide tube, which is axially fixedly coupled to the spindle nut-side connection (10).wherein the spindle assembly (4) comprises a tubular outer housing (11) radially enclosing the spindle-spindle nut drive (5), with a first housing tube (12) and optionally a second housing tube (13) that is telescopically extendable with the first housing tube (12). It is proposed that, during a rotational movement of the spindle (7) relative to the outer housing (11) or a housing-bound component (14) in at least one spindle rotation direction, if the angular acceleration of the spindle (7) relative to the outer housing (11) or housing-bound component (14) exceeds a predetermined threshold, a switchable braking device (15) is activated, which causes the rotational movement of the spindle (7) to be decelerated.