US 11,987,319 B2
Crank quick-connection structure, pedal assembly, and bicycle
Aicheng Hua, Beijing (CN); Yixiong Wang, Beijing (CN); Zhiwei Chao, Beijing (CN); and Lixin Tong, Beijing (CN)
Assigned to ROYALBABY CYCLE BEIJING CO., LTD., Beijing (CN)
Filed by ROYALBABY CYCLE BEIJING CO., LTD., Beijing (CN)
Filed on Jan. 23, 2023, as Appl. No. 18/100,368.
Claims priority of application No. 202221599994.X (CN), filed on Jun. 22, 2022.
Prior Publication US 2023/0415843 A1, Dec. 28, 2023
Int. Cl. B62M 3/08 (2006.01)
CPC B62M 3/08 (2013.01) 13 Claims
OG exemplary drawing
 
1. A crank quick-connection structure for connecting a crank and a main shaft, comprising:
an adapter, connected to the main shaft, wherein one end of the crank is provided with a cooperating cavity extending in a thickness direction thereof, and the adapter penetrates the cooperating cavity from one end of the cooperating cavity; and
a connecting assembly, connected to the adapter, the connecting assembly comprises limiting members which are provided on one of an inner wall of the cooperating cavity and an outer wall of the adapter; the connecting assembly further comprises a pressing assembly, an accommodating cavity is provided inside the adapter, the limiting members penetrate a wall of the accommodating cavity in a radial direction of the accommodating cavity, the pressing assembly is disposed in the accommodating cavity and cooperates with the limiting members; wherein the connecting assembly has a locking position and a releasing position; in the locking position, the crank cooperates with the connecting assembly so that the cooperating cavity and the adapter are locked and connected; and in the releasing position, the pressing assembly enables the limiting members to move from the locking position to the releasing position, the crank is disengaged from the connecting assembly so that the crank is disengaged from the adapter in an axial direction of the adapter.