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. 18, 2020
Filed:
Feb. 06, 2018
Tsubakimoto Chain Co., Osaka-shi, Osaka, JP;
Masahiko Konno, Osaka, JP;
TSUBAKIMOTO CHAIN CO., Osaka-shi, JP;
Abstract
Provided is a chain guide and a chain transmission that can reduce sliding resistance between the chain and guide lips, and can maintain a consistent oil film between the guide lips and outer plates. Guide lips each include a first contact convex portion formed on an upstream end in a chain running direction, and a second contact convex portion formed downstream of the first contact convex portion. The first contact convex portion includes a first peak and a first upstream slope formed upstream of the first peak. The second contact convex portion includes a second peak and a second upstream slope formed upstream of the second peak. The dimension in the chain running direction from an upstream end of a guide rail surface to the first peak is set smaller than a chain pitch.