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1. 发明授权

US3922929A Bicycle pedal crank extender 失效
标题翻译：自行车脚踏曲柄扩展器
公开(公告)号：US3922929A
公开(公告)日：1975-12-02
申请号：US42668573
申请日：1973-12-12
申请人： MARCHELLO JOHN L
发明人： MARCHELLO JOHN L
IPC分类号： B62M3/02 , G05G1/08 , G05G1/14
CPC分类号： B62M3/02 , Y10T74/209 , Y10T74/2164 , Y10T74/2172
摘要： An extender for removable attachment to the lower end of and for extending the length of a conventional bicycle pedal crank and adjustably lowering the bicycle pedal relative to the bicycle seat. The extender is formed of an elongated channel shaped to receive the lower end portion of a conventional pedal crank with the upper end of the extender shaped to spring grip the crank. The lower end of the extender is formed with a threaded socket to receive and threadedly engage the threaded mounting stud of a conventional bicycle pedal. The base of the extender channel is formed with a longitudinally elongated slot for overlapping the conventional pedal stud receiving opening formed in the lower end of the crank. A bolt fits through the slot and the crank pedal stud receiving opening to lock the extender in longitudinally adjustable positions upon the crank.
摘要翻译：用于可拆卸地附接到传统自行车踏板曲柄的下端并延伸相对于自行车座椅的自行车踏板的长度的延伸器。延伸器由细长的通道形成，该通道成形为接收传统的踏板曲柄的下端部分，其中该延伸器的上端形成为弹簧夹紧该曲柄。延伸器的下端形成有螺纹插座以接收并螺纹接合传统自行车踏板的螺纹安装螺柱。延伸通道的底部形成有纵向细长的槽，用于与形成在曲柄下端的常规踏板螺柱接收孔重叠。螺栓穿过狭槽和曲柄踏板螺柱接收开口，以将扩展器锁定在曲柄上的纵向可调节位置。

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