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:
Feb. 28, 1984
Filed:
Sep. 13, 1982
Takayuki Tabe, Tokyo, JP;
Takeyoshi Shinbori, Yokosuka, JP;
NHK Spring Co., Ltd., Yokohama, JP;
Abstract
An apparatus for controlling the spring constant of a laminated leaf spring assembly includes a clamping mechanism mounted on the laminated leaf spring assembly for clamping the laminated leaf spring assembly in the direction of thickness thereof. The clamping mechanism includes a fixed spring-supporting member on which a helper spring unit of the assembly is attached to be separated a determined distance from a main spring unit of the assembly. A movable press member positioned to face the helper spring unit and press the main spring unit against the helper spring unit is also provided. The controlling apparatus further includes a piston arrangement for pressing the press member to urge the main spring unit against the helper spring unit.