Invention Grant
- Patent Title: Bicycle sprocket and bicycle crank assembly
- Patent Title (中): 自行车链轮和自行车曲柄总成
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Application No.: US14723405Application Date: 2015-05-27
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Publication No.: US09540070B2Publication Date: 2017-01-10
- Inventor: Etsuyoshi Watarai , Kenji Kamada
- 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: F16H55/30
- IPC: F16H55/30 ; F16H7/06 ; B62M9/02 ; B62M9/00

Abstract:
A bicycle sprocket comprises a sprocket body and a chain engagement structure. The sprocket body has a rotational center axis, a first side and a second side opposite to the first side in an axial direction parallel to the rotational center axis. The chain engagement structure includes a plurality of sprocket teeth. The plurality of sprocket teeth include a plurality of first teeth and a plurality of second teeth. The plurality of first teeth each include an outer-link supporting surface, an opposite surface, and a first radially outermost tooth-tip. The opposite surface is spaced part from the second outer link plate in a state where the chain engagement structure engages with the bicycle chain. The plurality of second teeth each include a second radially outermost tooth-tip that is offset from the first radially outermost tooth-tip of each of the plurality of first teeth in the axial direction.
Public/Granted literature
- US20160347409A1 BICYCLE SPROCKET AND BICYCLE CRANK ASSEMBLY Public/Granted day:2016-12-01
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