Loading box (1) integrable into a transport vehicle, comprising an unloading device with bottom belt (9) fixed at one of its ends to a winding drum (11) disposed under the unloading bay, around which it winds under the action of a first power system (13), ...

The device has a three-dimensional stand for guiding and maintaining a rigid movable wall (6), and arranged on a side of the wall, where the side is not exposed to a transported load. The stand comprises a base that is spaced over a certain distance in a d...