| 摘要 |
<p>The present invention refers to a bump range reducing device for axle (3) suspensions (2) of a road-rail intermodular semitrailer used for levelling the semitrailer at a predetermined position during piggybacking onto railway wagons, which includes a sprang element (4) rotatably secured to the frame (5) of the semitrailer on at least one of its axles (3), and has operative ends (6,7) fitted in such a way so that they may be joined to the frame (5) and the axle (3). Furthermore, the device (1) includes actuator means (8) of the rotation of the element (4) in relation to the frame (5) from an active position to an inactive position. The active position corresponds to the piggybacking onto railway wagons, in which the element (4) is placed between the frame (5) and the axle (3) in such a way as to reduce the maximum reciprocal approach to a predetermined value so that when the suspension (2) reaches the predetermined value, it is inhibited. The inactive position corresponds to the road use of the semitrailer, in which the operative ends (6,7) of the said element (4) are detached from the frame (5) and from the axle (3). <MATH></p> |
