A variable-speed bicycle with an elliptical crankset relates to the technical field of bicycles and comprises a front dial rotating handle, a front dial fixing frame, a drawing wire, a rear dial, a chain, the elliptical crankset and a front dial. According to the variable-speed bicycle with the elliptical crankset, the front derailleur is installed on the bicycle frame, the defect that a chain of the variable-speed bicycle with the elliptical crankset is prone to falling off is overcome, and the problems that when the variable-speed bicycle with the elliptical crankset changes speed, the chain is blocked, and speed changing is difficult are solved; when the pedals run to the highest point or the lowest point, treading is easier and more labor-saving than that of a traditional bicycle, after treading becomes easier in the interval where force is difficult to apply, the bicycle can quickly pass through the area where treading is difficult, then the treading frequency is increased, the bicycle speed is further increased, and a rider does not have the feeling of thigh muscle soreness.
一种椭圆牙盘变速自行车,涉及自行车技术领域,包括前拨转柄、前拨固定架、拉丝、后拨、链条、椭圆牙盘、前拨;本发明的椭圆牙盘变速自行车,在车架上安装了前拨,解决了椭圆牙盘变速自行车存在的易掉链条的缺点,解决了椭圆牙盘变速自行车变速时存在的链条卡顿、变速难的问题,通过椭圆牙盘和本发明的前拨配合使用后,当脚踏板运转至最高点或最低点时,踩踏比传统自行车轻松、省力,在难发力的区间踩踏变得轻松后,可快速通过难踩踏区域,进而提高踏频,车速进一步提升,骑行者不会产生大腿肌肉酸痛的感觉。
Elliptical crankset variable-speed bicycle
一种椭圆牙盘变速自行车
2024-09-13
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
Elliptical crankset bicycle labor-saving and comfortable to ride
European Patent Office | 2023
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