Rigid axle suspension for a vehicle, in particular utility vehicle

The invention comprises a suspension system for a rigid axle (2) preferably on a heavy vehicle, such as a dumptruck.The system consists of two rods (4) which extend in the longitudinal direction of the vehicle, and which are mutually parallel, with a rod (4) at each axle side extending from the upper side of the axle (2) and to the chassis (1).Further, a triangular rod connection (5) which extends from the centre of the lower side of the axle (2) and with a mount (8) on each side of the central line to the chassis frame (1).Finally, two hydraulic cylinders (11) are mounted to dampen the springing up and down movements of the axle (2) and to adjust the level of the position of the axle (2).This system comprises few rods and can absorb all occurring impacts from the wheels, without these impacts being transferred to a noticeable degree to the vehicle itself.