Spindle drive with threaded shaft has unthreaded region on at least one end of shaft

摘要

The spindle drive includes a shaft (1), which in the region of its ends, has at least one unthreaded region (9). Before the end position (4, 5) is reached, the nut (2) runs axially against a spring element (10) and when the end position is reached, if not before, it comes to the unthreaded region. The shaft and nut may have spherical threads.