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US 6,957,796 B2Granted
Hydro-formed seat adjuster system
AssigneeLear Corporation
InventorsLeonard K. Hensley, Keith McCullen, Michael G. Maddelein
Life of this patent
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Abstract
A seat adjuster system includes a shaft and an elongated member. In another aspect of the present invention, the member is a lever which is attached to the shaft by an interference fit. A further aspect of the present invention employs hydro-forming of the shaft to attach the member to the shaft, which is preferably a torsion tube for an automotive seat.
Claims8
A seat adjuster system comprising:
- a fluid-formed shaft having an enlarged bulge that includes a set of external flats that extend along its length;
- and
- an elongated member having an aperture that includes a set of internal flats that extend completely through the aperture;
- wherein the elongated member is affixed to the shaft by engagement of each member of the set of external flats of the enlarged bulge with a corresponding member of the set of internal flats of the aperture free of welding.
1 more element
Dependencies are inferred from the claim text.