发明名称 |
Speed change device for a bicycle |
摘要 |
A speed change device for a bicycle includes a speed change lever and a front derailleur with a chain guide supported movably in reciprocation and axially of a plurality of front chain gears. The chain guide includes an inner plate having an inwardly enlarged portion enlarge toward a low speed front chain gear with respect to a high speed front chain gear. The inwardly enlarged portion is located in a range of movement of the driving chain in which the chain engages with a high speed front chain gear. The chain guide includes an outer plate having an outwardly enlarged portion enlarged toward the high speed front gear with respect to the low speed one. The outwardly enlarged portion is located within a range of movement of the chain in which the chain engages with the low speed front chain gear. The speed change lever includes a lever body and a fixing member for rotatably supporting the lever body. A positioning mechanism and a sound generating mechanism are provided between the lever body and the fixing member.
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申请公布号 |
US4613319(A) |
申请公布日期 |
1986.09.23 |
申请号 |
US19840637729 |
申请日期 |
1984.08.06 |
申请人 |
SHIMANO INDUSTRIAL COMPANY LIMITED |
发明人 |
NAGANO, MASASHI |
分类号 |
B62M9/131;B62M9/1344;B62M25/04;F16H7/24;(IPC1-7):F16H7/18;B60K20/00;G05G5/06 |
主分类号 |
B62M9/131 |
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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