Pivoting Cargo Rail Trolley for Continuous Vehicle Unloading

The patent introduces a mechanical intermediary system consisting of a rail mounted to the vehicle and a trolley with a second rail that acts as a mediator between the cargo bag and the ground. This intermediary mechanical system transfers the cargo bag from the vehicle to the ground without requiring manual lifting, thereby improving worker safety while maintaining acceptable system complexity through the use of simple rail-and-trolley components.

The trolley system enables self-service unloading where the mechanical system itself performs the transfer of cargo bags from the vehicle to the ground. The trolley moves along the mounted rail and the swing arm pivots to position the second rail, creating a self-operating mechanism that reduces dependency on manual labor and improves unloading efficiency without requiring complex automated systems.

The patent employs dynamic elements including a swing arm that can pivot and a trolley that can move along the rail, allowing the system to adapt to different cargo bag positions and maintain continuous operation. The dynamic nature of these components enables flexibility in handling while maintaining sufficient alignment precision through the mechanical constraints of the rail-guided trolley movement and swing arm pivoting mechanism.