发明名称 |
SINGLE PIVOT FRONT DERAILLEUR AND DUAL-SIDED CHAIN CATCHER |
摘要 |
Embodiments of a front derailleur gear shifting system including various unique chain guides attached to and operating from a single pivot point. This derailleur system provides a simple, yet, elegant and robust improvement in shifting technique over conventional, lateral motion front derailleurs. Embodiments of open and closed annulus chain guides having specially shaped lifting and pulling surfaces for acting upon a bicycle chain during shifting are also disclosed. Additionally, as an optional enhancement, a dual-sided chain catcher that prevents unintended over-shifts in either direction is disclosed. |
申请公布号 |
EP2969731(A4) |
申请公布日期 |
2016.11.16 |
申请号 |
EP20140763817 |
申请日期 |
2014.03.17 |
申请人 |
WICK WERKS, LLC |
发明人 |
WICKLIFFE, CHRISTOPHER, A.;GOATES, ELDON, L. |
分类号 |
B62M9/1342;B62M9/134;B62M9/1344;B62M9/136 |
主分类号 |
B62M9/1342 |
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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