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:
Jan. 07, 1997
Filed:
Jun. 15, 1995
Bruno Hamelin, Combs La Ville, FR;
Bertrand Faure Equipements S.A., Boulogne, FR;
Abstract
A vertically adjustable vehicle headrest has at least one slider translationally mounted in a guide. The slider has a plurality of locking notches regularly spaced along its length and a bistable headrest locking system is provided that includes a movably mounted cam that normally rests in a stable unlocked position relative to the notches thus allowing adjustable translational displacement of the slider relative to the guide. The cam is alternately movable to a stable locked position relative to the notches thus inhibiting translational displacement of the slider relative to the guide. A spring is mounted at a first end to a stationary member and at a second end to the cam for maintaining the cam in one of two bistable positions, namely, in a stable locked position or a stable unlocked position. The resilient device overcomes a biasing force when in the stable unlocked position and in response to rear impact to a vehicle that causes displacement of the cam to the stable locked position.