| 摘要 |
A spindle drive for adjusting structural components of a motor vehicle seat relative to one another includes a casing having opposite end walls with openings therein, a spindle nut disposed in the casing and having a pair of opposite ends and an internally threaded bore extending therethrough between the opposite ends and generally aligned with the openings in the opposite end walls of the casing, an externally threaded spindle extending through the casing and openings of the end walls thereof and also threadably received through the internally threaded bore of the spindle nut so as to extend in opposite directions from the opposite ends of the spindle nut, the spindle having an end stop attached thereon such that one of the opposite ends of the spindle nut faces toward the end stop on the spindle, and at least one collar attached to and extending outwardly from the one end of the spindle nut and about the spindle and having an end surface facing toward the end stop on the spindle such that as the spindle is rotated in a predetermined direction relative to the casing and spindle nut the end stop advances into contact with the end surface of the end collar but not into contact with the one end wall of the casing such that the end stop limits rotational axial movement of the spindle relative to the spindle nut without contacting the casing whereby a wedging of the end stop with the one end wall of the casing is avoided.
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