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:
May. 27, 1997
Filed:
Dec. 06, 1994
Tetsuaki Numata, Kitakatsuragi-gun, JP;
Shigeo Maeda, Nara, JP;
Koyo Seiko Co., Ltd., Osaka, JP;
Osakaseiko, Limited, Osaka, JP;
Abstract
A method of manufacturing an engaging element for a one way clutch requires no special control with respect to such factors as squareness between a cam face and side surfaces, possible flaws, and cut size, and enables production of the engaging element for a one way clutch at low cost. The method includes shearing a material by a press to prepare a sheared member of a predetermined size, and a forging process. The forgoing process includes a first step of striking one sheared surface of the sheared member, a second step of inverting the sheared member and striking the other sheared surface of the sheared member, a third step of inverting the sheared member and striking the one sheared surface of the sheared member, and a fourth step of inverting the sheared member and striking the other sheared surface of the sheared member.