发明名称 Bicycle rear sprocket assembly and sprocket
摘要 <p>A bicycle sprocket apparatus comprises a sprocket mounting member (63), a first sprocket (62a), and a second sprocket (62b). The sprocket mounting member (63) includes a hub mounting portion (63a) and a sprocket mounting portion (63b), wherein the hub mounting portion (63a) is structured to be mounted to a rotating hub that rotates around a rotational axis. The sprocket mounting portion (63b) includes a first sprocket mounting surface that faces in a first direction and a second sprocket mounting surface that faces in an opposite second direction. The first sprocket is disposed at the first sprocket mounting surface, and the second sprocket is disposed at the second sprocket mounting surface. A fastener fastens the first sprocket to the first sprocket mounting surface, and a chain supporting structure (65,165...565) extends from the fastener in the first direction and projects in the first direction away from a side surface of the first sprocket that faces in the first direction.</p>
申请公布号 EP1964769(A2) 申请公布日期 2008.09.03
申请号 EP20080000680 申请日期 2008.01.15
申请人 SHIMANO INC. 发明人 TOKUYAMA, KOJI
分类号 B62M9/10 主分类号 B62M9/10
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