| 摘要 |
<p>A device (12) for keeping the chassis height of a trailer constant comprises a rotatable member (60) mounted to the trailer frame (14, 50) and adapted to be movable between a retracted position and an extended position. In the retracted position, the axle (16) and wheel (18) of the trailer are free to move within the limits of the suspension. In the extended position, the rotatable member (60) limits the relative movement between the trailer frame (14) and the suspension to limit creep of the trailer.</p> |
