字符串截取 js专利名称：Bicycle sprocket tooth with a shift assist
radius greater than a reference tooth radius 发明人：Kamada, Kenji
申请号：EP06000192.2
申请日：20060105
公开号：EP1679255B1
公开日：
20090408
专利内容由知识产权出版社提供
摘要：A bicycle sprocket (14) comprises a sprocket body (50) having a first side surface (66) and a second side surface (70), a plurality of sprocket teeth (54) extending radially outwardly from a root portion (58) of the sprocket body (50), and a shift assist recess (74) formed in the root portion (58) below a first sprocket tooth at the first side surface of the sprocket body. A radially outermost surface of a second sprocket tooth (54d) defines a reference tooth radius (RR), and a radially outermost surface of a third sprocket tooth (54a') defines a shift assist tooth radius (RSA). The radially outermost surface (104) of the third sprocket tooth (54a') has a convex shape, and the shift assist tooth radius (RSA) is greater than the reference tooth radius (RR).
申请人：SHIMANO KK
地址：JP
国籍：JP
代理机构：Hofmann, Harald
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