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:
Aug. 23, 2005
Filed:
Apr. 19, 2001
Satoshi Kadokawa, Fujisawa, JP;
Noriyuki Takeo, Fujisawa, JP;
Yoshihiro Saito, Namerikawa, JP;
Shinobu Shimada, Namerikawa, JP;
Satoshi Kadokawa, Fujisawa, JP;
Noriyuki Takeo, Fujisawa, JP;
Yoshihiro Saito, Namerikawa, JP;
Shinobu Shimada, Namerikawa, JP;
NSK Ltd., Tokyo, JP;
Toho Industrial Co., Ltd., Toyama, JP;
Abstract
A sheet-metal rocker arm formed by the steps of punch-pressing a sheet of metal member to form a blank having a predetermined shape and a through-hole, of subjecting the blank to a bending process based on pressing to form a pair of substantially parallel side wall sections and a connection section for connecting the widthwise edges of the both side wall sections and to form at least one pair of circular holes in the both side wall sections at locations in alignment, of deforming the middle of the connection section in the thickness direction to form an engagement portion on one side of the connection section such that the engagement portion is recessed from the other portion of the connection section, and of forming on the other side of the connection section a bulge section, trapezoidal in cross section, which protrudes in an embanked-shape as the engagement portion is formed, whereby the widthwise edges of the middle of the bulge section corresponding to the top edge of the trapezoidal shape exist on the widthwise inside of the both widthwise edges of the engagement portion.