| 摘要 |
The present invention relates to an assembly for loading or unloading cargo which comprises a cargo space having a base portion and a loading-unloading apparatus having a supporting structure. A cargo conveyor has an upper part and a lower part, the upper part of the conveyor bearing against the supporting structure of the loading-unloading apparatus. Lifting devices are connected to the supporting structure for lifting the supporting structure to alter the distance between the supporting structure and the base portion. The raising of the supporting structure with respect to the base portion, when cargo is moved on the loading-unloading apparatus, transmits a substantially concentrated weight exerted by the cargo through the lifting devices to the base portion, and the lower part of the conveying means is freely movable beneath the supporting structure. The lowering of the supporting structure into direct abutment with the base portion through the lower part when the loading apparatus is inoperative in moving cargo, transmits the weight, exerted by the cargo to the base portion of the cargo space through the lower part of the conveyor, such that the weight is more evenly spread over the base portion. |
