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:
Oct. 21, 2014
Filed:
Oct. 25, 2007
Shinji Yasuhara, Yamatokoriyama, JP;
Shinji Yamane, Nara, JP;
Shinji Yasuhara, Yamatokoriyama, JP;
Shinji Yamane, Nara, JP;
Jtekt Corporation, Osaka-Shi, Osaka, JP;
Abstract
[Problems] To provide power transmission chain manufacturing method and apparatus which can prevent a pin against damage when, by increasing a pre-tension, a more proper residual compression stress is applied to a link. [Means for Solving Problems] The manufacturing apparatus comprises a pre-tension applying apparatuswhich includes a first pre-tension applying pulleyand a second pre-tension applying pulleyaround which an endless shaped chaincan be wound. The mutually opposed sheave surfacesandof the pre-tension applying pulleysandare respectively formed to have a concave shape which corresponds to the convex curved portionof the end face of a pin