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:
Sep. 10, 2019
Filed:
Nov. 24, 2016
Shimano Inc., Sakai, JP;
Akinobu Sugimoto, Sakai, JP;
SHIMANO INC., Sakai, JP;
Abstract
A bicycle sprocket comprises a sprocket body, a plurality of sprocket teeth, at least one shifting facilitation projection, and at least one bump portion. The at least one shifting facilitation projection is configured to engage with a bicycle chain in a first shifting operation in which the bicycle chain is shifted from the bicycle sprocket toward a smaller sprocket. The at least one bump portion is provided on a downstream side of the at least one shifting facilitation projection in a driving rotational direction in which the bicycle sprocket rotates during pedaling. The at least one bump portion is spaced apart from the at least one shifting facilitation projection by a distance that is equal to or smaller than two chain pitches.