| 摘要 |
PROBLEM TO BE SOLVED: To provide a drive mechanism for preventing vibration generated by a conventional crank arm and further enhancing inertia moment rather than a conventional bicycle. SOLUTION: The driving mechanism for the bicycle includes a rotation shaft comprising a rod-like body; a drive gear coaxially fixed relative to the rotation shaft; and crank arms fixed to two flywheels integrally provided on the rotation shaft respectively. The rotation shaft is rotatably supported on a bearing provided on a vehicle body of the bicycle. COPYRIGHT: (C)2011,JPO&INPIT
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