发明名称 |
Multistage front chain gear for a bicycle |
摘要 |
A multistage front chain gear for a bicycle is provided which includes a gear body which is formed of synthetic resin and having at least one larger diameter toothed body and at least one smaller diameter toothed body having different numbers of teeth. First and second contact plates are formed of material having a larger cutting resistance than the synthetic resin used for the gear body. The first contact plate is attached to the outside surface of the larger diameter toothed body, and the second contact plate is attached to the inside surface of the smaller diameter toothed body. As a result, each toothed body is protected from being cut by a driving chain.
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申请公布号 |
US4586914(A) |
申请公布日期 |
1986.05.06 |
申请号 |
US19850710684 |
申请日期 |
1985.03.12 |
申请人 |
SHIMANO INDUSTRIAL COMPANY LIMITED |
发明人 |
NAGANO, MASASHI |
分类号 |
B62M9/10;F16H55/06;F16H55/30;(IPC1-7):F16H55/12 |
主分类号 |
B62M9/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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