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. 15, 2006
Filed:
Jun. 27, 2002
Tsukashi Oohama, Utsunomiya, JP;
Naomi Sato, Tochigi-ken, JP;
Yoshihisa Doi, Utsunomiya, JP;
Saburo Akimoto, Tochigi-ken, JP;
Shigeo Ota, Tochigi-ken, JP;
Tsukashi Oohama, Utsunomiya, JP;
Naomi Sato, Tochigi-ken, JP;
Yoshihisa Doi, Utsunomiya, JP;
Saburo Akimoto, Tochigi-ken, JP;
Shigeo Ota, Tochigi-ken, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An outer ring member for a constant velocity joint is manufactured. An intermediate preformed product having a cup section with an incomplete shape is formed by pressing a large diameter section without applying a low temperature annealing treatment and a lubricating chemical conversion coating treatment. Then, applying a low temperature annealing treatment and a lubricating chemical conversion coating treatment to the intermediate preformed product, thereafter a formed product having a cup section provided with ball-rolling grooves is formed by backward extrusion to the intermediate preformed product. Subsequently, the product is ironed before hardening, without applying a low temperature annealing treatment and a lubricating chemical conversion coating treatment to the formed product.