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. 24, 2015
Filed:
Sep. 24, 2008
Shigeo Kamamoto, Kashiwara, JP;
Seiji Tada, Kashiba, JP;
Shigeo Kamamoto, Kashiwara, JP;
Seiji Tada, Kashiba, JP;
JTEKT Corporation, Osaka-Shi, Osaka, JP;
Abstract
There are provided a power transmission chain which can reduce a noise level further by eliminating unfavorable combinations from a random arrangement of combinations of pitch lengths and pin shapes and a power transmission system using the same power transmission chain. With respect to pitch length, links include two types of a link Lwhich has a small pitch length and a link Lwhich has a large pitch length. With respect to pin shape, pins include two types a pin Pof which a curvature of a rolling contact surface is large and a pin Pof which the curvature of the rolling contact surface is small. The links are arranged so that a possibility is avoided that a combination of (L, P) and a combination of (L, P) come immediately after a combination of (L, P) in a chain traveling direction, and that a possibility is adopted that a combination of (L, P) or a combination of (L, P) comes immediately after the combination of (L, P).