Patent ID: 6490942
Filing Date: 2002-12-10
Classification: B60N,Y10T

Abstract:
A spindle drive for adjusting structural components of a motor vehicle seat relative to one another, said spindle drive comprising:(a) a casing having opposite end walls with openings therein; (b) a spindle nut disposed in said casing and having a pair of opposite ends and an internally threaded bore extending therethrough between said opposite ends and generally aligned with said openings in said opposite end walls of said casing; (c) an externally threaded spindle extending through said casing and said openings of said end walls thereof and also threadably received through said internally threaded bore of said spindle nut so as to extend in opposite directions from said opposite ends of said spindle nut, said spindle having an end stop attached thereon such that one of said opposite ends of said spindle nut faces toward said end stop on said spindle; (d) at least one collar attached to and extending outwardly from said one end of said spindle nut and about said spindle and having an end surface facing toward said end stop on said spindle such that as said spindle is rotated in a predetermined direction relative to said casing and spindle nut said end stop advances into contact with said end surface of said end collar but not into contact with said one end wall of said casing such that said end stop limits rotational axial movement of said spindle relative to said spindle nut without contacting said casing whereby a wedging of said end stop with said one end wall of said casing is avoided; and (e) a plurality of elastic elements disposed between an interior surface of said casing and an exterior surface of said spindle nut at locations circumferentially spaced apart about said spindle nut and elastically supporting said spindle nut in said casing.