| 摘要 |
<p>The equipment for lifting loads on land vehicles, particularly trucks, tractors, agricultural prime movers, trailers and the like comprises at least a base frame (2) associable with the chassis (3) of a vehicle (4), at least a crane-carrying column (5), substantially vertical, associated with the base frame (2) in a way rotating around its own axis, at least a crane (6) for lifting loads associated with the column (5), at least a hinging system (16) for hinging the column (5) to the base frame (2) substantially arranged at the upper extremity of the column (5) and means for operating in rotation (15) the column (5) around its own axis which comprise at least a first actuator (17) arranged substantially horizontal and associated with first transformation means (18) for transforming the movement of the first actuator (17) into the rotary movement of the column (5), and at least a second actuator (19) arranged substantially horizontal and associated with second transformation means (20) for transforming the movement of the second actuator (19) into the rotary movement of the column (5), the first actuator (17) and the second actuator (19) being arranged substantially parallel one above the other and at least one of such actuators (17, 19) being of the rack and pinion or wormscrew type.</p> |
