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:
Dec. 26, 2006
Filed:
Dec. 05, 2005
Shiyouichi Abe, Gunma, JP;
Kiyoshi Ookubo, Gunma, JP;
Yasushi Watanabe, Gunma, JP;
Takanori Ooshima, Gunma, JP;
Shiyouichi Abe, Gunma, JP;
Kiyoshi Ookubo, Gunma, JP;
Yasushi Watanabe, Gunma, JP;
Takanori Ooshima, Gunma, JP;
NSK Ltd., Tokyo, JP;
NSK Steering Systems Co., Ltd., Tokyo, JP;
Abstract
In relation to a rocker arm obtained by applying cold forging to a blank made from a metal wire rod, cold forging is applied to a blank obtained by cutting a metal wire rod to a predetermined length to make a second intermediate blankhaving a pair of side wall sectionsand a basewhich connects the two side wallsat one of their respective widthwise edges. Punching is applied to the baseof this second intermediate blankto form a first and a second connection sections. In the case where it is assumed that a rolleris arranged at a position corresponding to an arrangement position of the rollerof the rocker arm to be obtained, on the inside of the second intermediate blankwhich is to be subjected to punch processing, the rollerand the basedo not interfere with each other. As a result, performance improvement of an engine fitted with this rocker arm is obtained.