Trailer hitch and means for manoeuvring a carriage

The towing hitch (5) for a trailer has a longitudinal bar (6,7) having lugs (8) at its end for pivot connection to the trailer. The bar is formed as a hollow casing filled with an acoustic insulation. The free end of the bar can have a coupling ring (9) made of an absorbent material to dampen shocks between the ring and the towing hook.