| 摘要 |
A towing apparatus comprises a structural assembly extending between opposing first and second bases for pivoting between operating and stored positions. A locking assembly includes a pin in each base and a hook carried at opposing ends of the structural assembly. A cam is pivotally connected to the hook for movement between locked and released positions. In the locked position, the hook is secured to the pin for preventing rotation of the structural assembly. In the released position, the hook is spaced from the pin to permit rotation of the structural assembly. The hook is rotatable with the cam from the released position to adjacent the pin by rotation of a shaft and slidable along the pin into the locking position by a continued shaft rotation. A cable is attached between the base and a spring within the structural assembly for biasing the structural assembly toward the operating position. |
