The truck or semi-trailer or truck trailer (1) has a superstructure (2), where the roof surfaces (4a,4b) can be moved to the side by at least one hydraulic cylinder (10,11). When folded out, the hydraulic cylinder(s) lie(s) outwards on the roof surfaces be...

A pivoting base (11) is mounted on top of a light van and when in use swings to take up a longitudinal position. Telescopic arms (13-18) have inner ends seated in the base and outer ends attached to an inflatable periphery (23). The assembly is secured by ...