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:
Mar. 09, 2010
Filed:
Jan. 31, 2007
Naoki Hiramatsu, Hekinan, JP;
Akira Takeuchi, Nishio, JP;
Kimihiko Todo, Aichi, JP;
Tomiyasu Hirano, Gamagori, JP;
Yoshio Kawatake, Osaka, JP;
Naoki Hiramatsu, Hekinan, JP;
Akira Takeuchi, Nishio, JP;
Kimihiko Todo, Aichi, JP;
Tomiyasu Hirano, Gamagori, JP;
Yoshio Kawatake, Osaka, JP;
Otics Corporation, Aichi, JP;
Nakanishi Metal Works Co., Ltd., Osaka, JP;
Abstract
A rocker arm that is rockably attached to a cylinder head actuates a valve by a guide groove that is formed at an end thereof engaging with an upper end of a valve stem, and a roller that is mounted in a roller housing portion of the arm main unit contacting against a cam and rocking. The guide groove is formed by press working ends of the arm main unit in the thickness direction of the plate material to form a pair of walls, and thereafter applying sandwiching pressure in the lateral direction to the walls to increase the height thereof.