自行車踏板

自行車踏板自行車的一部分,騎車者騎車時用腳踩住踏板後用力蹬踏以帶動曲柄牙盘轉動,並進而推动自行车的车轮向前滾動。踏板通常由一个穿入曲柄一端的主轴和脚托组成,脚托可以相對於主轴自由转动。[1]

自行車踏板

参考文献

  1. Sampson, Eric A. . United States Patent Office. 28 March 1989 [5 May 2011].
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