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. 12, 2024
Filed:
Sep. 20, 2021
Applicant:
Daido Kogyo Co., Ltd., Ishikawa, JP;
Inventors:
Motoki Tanaka, Ishikawa, JP;
Satoshi Yamashita, Ishikawa, JP;
Hiroki Nakagawa, Ishikawa, JP;
Atsushi Hayashi, Ishikawa, JP;
Assignee:
DAIDO KOGYO CO., LTD., Ishikawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16G 13/04 (2006.01); F16H 7/06 (2006.01); F16H 57/05 (2006.01);
U.S. Cl.
CPC ...
F16G 13/04 (2013.01); F16H 7/06 (2013.01); F16H 57/05 (2013.01);
Abstract
When a contact area with a chain guide is reduced by a back surface of a link plate having a convex portion, a friction coefficient in a fluid lubrication region is reduced. A coating film containing 10% or more of chromium is on the link plate. A friction modifier made of a molybdenum compound and including with a lubricating oil promotes generation of MoSby the coating film, and prevents an increase in a friction coefficient in a boundary lubrication region.