The invention discloses a bicycle variable-speed operating device which comprises a positioning mechanism, the positioning mechanism comprises a positioning ratchet wheel and a positioning pawl, the positioning ratchet wheel is provided with positioning teeth and locking teeth, and the positioning teeth and the locking teeth are the same in tooth shape and are distributed on the circumference of the positioning ratchet wheel; the positioning pawl is rotationally connected to the fixed bottom plate, and a positioning bias elastic piece is arranged between the positioning pawl and the fixed bottom plate; the variable-speed release mechanism comprises a release driving lever and a stop pawl; the release driving lever is rotationally connected with the fixed bottom plate, and a first abutting part used for promoting the positioning pawl to be disengaged from the positioning teeth on the positioning ratchet wheel is arranged on the release driving lever; and the stop pawl is arranged on the release driving lever. The split type design of the positioning pawl and the locking pawl is adopted, the locking teeth and the positioning teeth can be arranged to be the same in shape, the operation range of gear shifting is expanded to the maximum degree, more operation gears are obtained, and the gear shifting mechanism has the advantages of being compact in structure, small in occupied space and the like.
本发明公开一种自行车变速操作装置,包括:定位机构,该定位机构包括定位棘轮和定位棘爪,所述定位棘轮构造有定位齿和止动齿,所述定位齿和止动齿的齿形相同并分布在定位棘轮的圆周;所述定位棘爪转动连接在固定底板上,该定位棘爪与固定底板之间设有定位偏压弹性件;变速释放机构,所述变速释放机构包括释放拨杆和止动棘爪;所述释放拨杆与固定底板转动连接,该释放拨杆上设有用于促使定位棘爪与定位棘轮上的定位齿脱离啮合的第一抵接部;所述止动棘爪设置在释放拨杆上。本发明采用定位棘爪和止动棘爪分体式设计,可将止动齿和定位齿设置成相同的形状,最大程度地扩大变档的操作范围,获得更多的操作档位,还具有结构紧凑、占用空间小等优点。
Speed change operating device of bicycle
一种自行车变速操作装置
2022-11-01
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
Bicycle speed variator, bicycle, and method and device for speed change of bicycle
European Patent Office | 2015
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