The invention belongs to the field of travel and leisure riding equipment, and especially relates to a manufacturing and using method of a length-adjustable crank for travel riding. The crank comprises an upper crank section, a lower crank section and a limiting connection fixing spring pin. The upper crank section and the lower crank section are in sliding connection in an inserted mode and are fixedly connected through a limiting connection fixing spring pin, so the length of the crank can be adjusted and changed between 155 mm and 195 mm, and the purpose of improving the original changing capacity of a variable-speed vehicle can be achieved by conveniently adjusting the length of the crank in the using process; and the crank is convenient to use and reliable in functions.
本发明属于旅游休闲骑行器材领域,尤其涉及一种旅游骑行用可调长度曲柄的制造与使用方法,包括曲柄上段、曲柄下段和限位连接固定弹簧销三部分,本方案所述曲柄上段与曲柄下段通过插接式滑动连接,由限位连接固定弹簧销固定连接的设计,可使曲柄长度在155~195毫米之间调节变化,使用时可通过便捷调节曲柄长短实现提高变速车原有变化能力的目的;本装置使用方法便捷,功能可靠。
Manufacturing and using method of length-adjustable crank for travel riding
一种旅游骑行用可调长度曲柄的制造与使用方法
2020-04-28
Patent
Elektronische Ressource
Chinesisch
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
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