公开(公告)号：US20240067299A1

公开(公告)日：2024-02-29

申请号：US17950105

申请日：2022-09-22

申请人： SHIMANO INC.

发明人： Hiroshi FUJITA ,  Yusuke ODA ,  Hiroaki UEMURA

IPC分类号： B62M9/10

CPC分类号： B62M9/10

摘要： A rear sprocket comprises a sprocket body, a plurality of sprocket teeth, a plurality of spline teeth, a maximum spline distance, and a radial tooth-bottom distance. Each of the plurality of spline teeth has a spline crest. The maximum spline distance is defined from the rotational center axis to the spline crest. The radial tooth-bottom distance is defined from a rotational center axis to one of plurality of tooth bottom center points. The maximum spline distance is larger than the radial tooth-bottom distance. The spline crest of each of the plurality of spline teeth is positioned radially inwardly from the tooth outline of each of the plurality of sprocket teeth in the radial direction.