Trailer-type vehicle for lifting, transporting, and depositing loads

摘要

A vehicle for lifting, transporting, and depositing a load includes lower and upper substantially U-shaped frames each having a front bar and a pair of side bars extending rearwardly from the front bar, with the front bar of the lower frame capable of being attached to a pulling vehicle, while at least a pair of wheels are connected with the side bars of the lower frame to support the latter during travelling thereof. The upper frame is connected by a suitable connecting structure to the lower frame for movement with respect thereto downwardly to a lower load-receiving position and upwardly to an upper load-transporting position, while a transverse pivot axis is provided for the upper frame so that the latter can turn about this axis during depositing of a load. The two frames define a load-receiving space on opposite sides of which are a pair of expandable and contractable fluid-pressure devices, respectively, each fluid-pressure device being connected to side bars of the lower and upper frames to displace the upper frame between the above positions thereof and to turn the upper frame about the above pivot axis when depositing a load. These fluid-pressure devices expand during movement of the upper frame down to its lower load-receiving position and during turning of the upper frame about the above pivot axis when depositing a load. A structure is provided for releasably holding the pivot axis stationary when the upper frame is turned about the pivot axis during depositing of a load.