The invention relates to a bicycle crank set comprising a shaft (1) rotatably mounted in a housing (2), the shaft having two end connections (1a, 1b), on which bases (9a, 9b) of pedal cranks (8a, 8b) are respectively mounted by means of a reversible connection system, the reversible connection system comprising a rod (16) rotatably mounted in the shaft (1), the rod having a threaded first end (16a), the lever (16) has a first end projecting from the first crank (8a) for engagement with a nut (18) for axial fastening in a mounting position on the shaft (1), and a second end (16b) projecting from the second crank (8b) provided with an actuating member (21) for manually actuating the lever (16) in rotation in a fastening direction, the actuating member has a non-return device (27, 28) to prevent rotation in the opposite loosening direction, which non-return device can be manually deactivated in order to detach the crank (8a, 8b).
本发明涉及一种自行车曲柄组,其包括可旋转地安装在壳体(2)中的轴(1),轴具有两个端接头(1a,1b),踏蹬曲柄(8a,8b)的基座(9a,9b)通过可逆连接系统分别安装在端接头上,可逆连接系统包括可旋转地安装在轴(1)中的杆(16),杆具有带有螺纹的第一端(16a),第一端从第一曲柄(8a)凸伸出,以与用于轴向紧固在轴(1)上安装位置的螺母(18)接合,杆(16)还具有从第二曲柄(8b)凸伸出的第二端(16b),第二端配有用于手动致动所述杆(16)在紧固方向上旋转的致动构件(21),致动构件具有用以防止在相反的松开方向上旋转的止回装置(27,28),止回装置能手动停用以便拆卸曲柄(8a、8b)。
Bicycle crank set comprising detachable crank
包括可拆卸曲柄的自行车曲柄组
2024-08-20
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
A BICYCLE EQUIPPED WITH A DETACHABLE STRUCTURE OF A BICYCLE CRANK AND DETACHABLE STRUCTURE
European Patent Office | 2021