Spindle gear for an adjusting device in a motor vehicle seat

Details Spindle gear for an adjusting device in a motor vehicle seat Spindle gear for an adjusting device in a motor vehicle seat

2008-03-11

2008-03-11

Ridley, Richard (Department: 3682)

Machine element or mechanism

Gearing

Directly cooperating gears

C297S362140, C248S124100

Reexamination Certificate

active

11319087

ABSTRACT:
A spindle gear for a motor vehicle seat adjusting device having a housing, a spindle nut, a spindle and a worm wheel. The spindle nut may have an external bearing surface and a bearing shell may include an internal bearing surface cooperating with the external bearing surface. The spindle nut may have a slide lacquer coat. The spindle nut may have an external bearing surface and a stop disk may be attached to the external bearing surface so as to surround it. A projection may engage a corresponding spindle nut recess. The housing may comprise at least two housing parts made of zinc diecasting. The external teeth of the spindle nut may form a globoidal gear. The external spindle nut teeth may have an outer diameter that is smallest in an axial center thereof and increases toward the axial end regions.

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