Invention Grant
- Patent Title: Bicycle sprocket arrangement
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Application No.: US16255826Application Date: 2019-01-24
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Publication No.: US11518474B2Publication Date: 2022-12-06
- Inventor: Yasufumi Fukunaga , Shota Suyama
- Applicant: SHIMANO INC.
- Applicant Address: JP Sakai
- Assignee: SHIMANO INC.
- Current Assignee: SHIMANO INC.
- Current Assignee Address: JP Sakai
- Agency: Mori & Ward, LLP
- Main IPC: B62M9/12
- IPC: B62M9/12 ; F16H55/30

Abstract:
A bicycle sprocket arrangement comprises a smaller sprocket and a larger sprocket. The larger sprocket has at least one upshifting facilitation area configured to facilitate an upshifting operation in which a bicycle chain is shifted from the larger sprocket toward the smaller sprocket. The at least one upshifting facilitation area includes an upstream tooth, an intermediate tooth, and a downstream tooth. The upstream tooth has a first recessed portion. The intermediate tooth has a second recessed portion. The downstream tooth has at least one of a third recessed portion and a chamfered portion. The at least one of the third recessed portion and the chamfered portion are separated from the second recessed portion.
Public/Granted literature
- US20200239106A1 BICYCLE SPROCKET ARRANGEMENT Public/Granted day:2020-07-30
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