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:
May. 15, 2012
Filed:
Jul. 10, 2007
Applicants:
Makoto Saito, Ina, JP;
Takashi Morimoto, Ina, JP;
Yoshiharu Kitamura, Aikawa-machi, JP;
Inventors:
Assignee:
NHK Spring Co., Ltd., Yokohama-Shi, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47C 7/54 (2006.01); B60N 2/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
An armrest, has a stationary shaft rotatably supporting an armrest body against a seat frame. The stationary shaft is inserted, so as to have fastening tolerance, inside a coil lock spring and to have a stationary-side hook and a free-side hook. A diameter of the coil lock spring is reduced or enlarged according to a normal or a reverse rotation, respectively, of the armrest body, so as to prevent or permit, respectively, the rotation of the armrest body. One of the inside diameter of the lock spring and the outside diameter of the stationary shaft is tapered in said shaft's axial direction.