Device for tilting the deck of a trailer

The device has a frame (10) at which a rear end of a deck (18) is connected, where the deck is pivotable about a pivot axle (XX') relative to the frame. A mast (28) is fixed perpendicular to the frame, and prolonged upwards, where the mast is provided with a winch (32), a cable (36) and a pulley (30) for the cable. A force arm (40) is integral with the deck, and perpendicular to a plane of the deck in a rearward position closer to the pivot axle, where the force arm is intended to receive the cable.