Thread drive, has catch nut that stands in screw-contact with threaded spindle and crushed by spring against contact surface of supporting nut, where catch nut is supported at contact surface in axial direction

摘要

The drive has a supporting nut (16) and a catch nut (28) that stands in screw-contact with a threaded spindle (12). The catch nut is fixable in a position relative to the supporting nut, where the catch nut is supported at a contact surface (26) of the supporting nut in an axial direction and does not deeply move threads of the threaded spindle. The catch nut is crushed by a spring (34) against the contact surface.