| 摘要 |
The load platform (3) of a trailer (1) is supported by a plurality of trolleys (4), in each of which the displacement of a wheeled axle (5) thereof about a fulcrum axis (22) is driven by a suspension (12), to a support structure (16) of which extending towards the rolling plane (P) of the wheels one end of a oscillating arm (19) is hinged in the fulcrum axis (22), the opposite end of which, instead, is connected to a connection portion (7) of the axle (5); the oscillation of the arm (19) is controlled by a hydraulic jack (25) having one end hinged to the support structure (16) for rotating about a first hinge axis (27) and a second end hinged to the connection portion (7) for rotating about a second hinge axis (29) arranged in a raised position with respect to the first hinge axis (27) when the arm (19) is arranged in a retracted stop position thereof, wherein the wheels (9) are arranged close to the load platform (3). |
