Control drive for operating vehicle driving off coupling has spindle drive for converting rotary input motion to translation motion with spindle nut pressing on threaded spindle with variable force

摘要

The device has an output element (6) guided in a translation direction for direct or indirect disengagement of the coupling and a spindle drive (4) for converting a rotary input movement into a translational movement of the output element. The spindle drive has a translationally movable threaded spindle and a rotating spindle nut (7) that takes up the rotational input motion. The force with which the spindle nut presses on the threaded spindle is variable.