Patent ID: 11897535
Assignee: WONDERLAND SWITZERLAND AG
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 4:
5. The folding hook structure according to claim 1, further comprising:
a sliding member, at least partially arranged in the shell, and movable between an extended position close to the rotating disk and a retracted position away from the rotating disk along the radial direction of the rotating disk;
wherein a notch is formed on an outer circumference of the rotating disk, and in the released position, the notch is able to be aligned with the sliding member as the rotating disk rotates;
when the notch is not aligned with the sliding member, the sliding member abuts against the outer circumference of the rotating disk and unable to move to the extended position; when the notch is aligned with the sliding member, the sliding member is able to move to the extended position and engage into the notch, thereby locking a rotation angle of the rotating disk in respect to the shell.