The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 1992
Filed:
Apr. 06, 1992
Mohan P Vidwans, Saline, MI (US);
Hoover Universal, Inc., Plymouth, MI (US);
Abstract
An adjustment mechanism for a vehicle head restraint assembly is disclosed in which the head restraint pad is supported on one or more posts having a plurality of V-shaped detent notches for engagement by a wire spring to hold the head restraint pad in place. The posts fit into guide bushings which contain a flange enclosing a wire spring, a portion of which engages the notches during normal use to prevent unwanted movement of the head restraint pad while allowing vertical adjustment of its position. The spring and flange are constructed to distribute loads arising from adjustment of the head restraint pad to both sides of the spring, resulting in a relatively even distribution of the forces acting on the spring during adjustment and providing the spring with a longer fatigue life.