An unloading system for a car trailer has an unloading cloth fixed to a rotating pipe (4). Rotating the pipe rolls the cloth around the pipe. The support frame (1) has pivoting location. A hinge is located between the bearing mounts (3) of the rotating pipe and the support frame on each side. The support frame is located on the rear side of the trailer, which drops flat and is fixed horizontally in the unloading position.
