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. 21, 1997
Filed:
Nov. 29, 1994
Applicant:
Inventors:
Nobutsuna Motohashi, Gose, JP;
Kenji Takahashi, Kashihara, JP;
Assignee:
Koyo Seiko Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L / ;
U.S. Cl.
CPC ...
74559 ; 123 9039 ; 123 9041 ;
Abstract
A rocker arm comprises: a rocker arm body having a pair of side walls, a pivot shaft mounting portion at one end, and a valve engaging portion at the other end; and a roller rotatably mounted on the rocker arm body at the middle. In the rocker arm, at least the side walls are prepared by blanking a plate material, and the pivot shaft mounting portion and the valve engaging portion are connected, as bridges, between the side walls, and a thread hole is formed in the pivot shaft mounting portion in such a manner that its length is larger than the wall thickness of the side walls.