发明授权
- 专利标题： Chain wheel and crank for a bicycle
- 专利标题（中）： 链轮和自行车曲柄
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申请号： US887803申请日： 1978-03-17
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公开(公告)号： US4150859A公开(公告)日： 1979-04-24
- 发明人: Takashi Segawa , Hitoshi Katayama
- 申请人： Takashi Segawa , Hitoshi Katayama
- 申请人地址： JPX Osaka
- 专利权人： Shimano Industrial Company, Ltd.
- 当前专利权人： Shimano Industrial Company, Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX50-142048 19751017
- 主分类号： B62K19/34
- IPC分类号： B62K19/34 ; B62M3/00 ; B62M9/00 ; F16D41/24 ; F16C3/04
摘要：
A bicycle chain wheel and crank of three pieces, namely a crank shaft and a pair of crank arms. The crank shaft freely rotatably supports the chain wheel through a cone, so that the crank is easy and inexpensive to manufacture. The crank arms can be of common shape because a chain wheel mounting boss does not have to be formed on the crank arm.
公开/授权文献
- US4796486A Gear mechanism for full-track vehicle 公开/授权日：1989-01-10
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