Low axial play drive system
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United States of America Patent
Stats
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Jun 28, 2011
Grant Date -
Dec 27, 2007
app pub date -
May 5, 2006
filing date -
May 5, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A drive system for rotating an assembly, such as an external vehicle mirror housing, about an axis is provided with a drive housing containing a worm drive assembly coupled to an axis gear mounted about the axis. The worm drive assembly is rotated by an electric motor. The axis gear is stationary with respect to the axis, such that rotation of the worm drive assembly will cause it to travel about the axis gear. Such movement of the worm drive assembly will cause the drive housing and the associated external vehicle mirror housing to rotate about the axis. Thrust transmitted to the worm drive assembly is transmitted to a central portion of the drive housing by a shaft retainer associated with the worm drive assembly. Play between the axis gear and the worm drive assembly is prevented by eliminating separation between adjacent components of the worm drive assembly.
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