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    • 1. 发明专利
    • Crank drive chain device for bicycle
    • 起重机驱动链条设备
    • JP2004074889A
    • 2004-03-11
    • JP2002235985
    • 2002-08-13
    • Yoshihisa Inoue井上 善久
    • INOUE YOSHIHISA
    • B62M9/16
    • PROBLEM TO BE SOLVED: To provide a novel mechanism capable changing the linear stepping force of a pedal by a driver into the most suitable torque characteristics according to a travel load condition in the operation status of a bicycle. SOLUTION: The chain device is provided with a crank shaft, a pair of crank arms and a crank chain gear integrally rotating coaxially with the crank shaft, a rear chain gear rotating integrally and coaxially with a rear wheel hub, and a drive chain extending between the crank chain gear and the rear chain gear. An eccentric intermediate idle gear operated at the half cycle of the rotation cycle of the crank shaft is intervened in the extending side passage of the drive chain and engaged with the chain, thereby changing the length of the chain passage cyclically and giving variation in an angular speed to the moving crank shaft. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种新颖的机构,其能够根据自行车的运行状态中的行驶负载条件,将驾驶员的踏板的线性踏力改变为最合适的转矩特性。 解决方案:链条装置设置有曲柄轴,一对曲柄臂和与曲轴同轴旋转的曲柄齿轮,与后轮毂一体地同轴旋转的后链轮,以及驱动 链条在曲柄链齿轮和后链齿轮之间延伸。 在曲轴的旋转周期的半周期操作的偏心中间空转齿轮介于驱动链的延伸侧通道中并与链条接合,从而循环地改变链条的长度并给出角度的变化 移动曲柄轴的速度。 版权所有(C)2004,JPO