| 摘要 |
<p>Each stand (3) is pivoted on a first runner (11) connected to the chassis (2) so as to be able to slide longitudinally along the chassis. A strut (12) is pivoted on the stand and on a second runner (13) connected to the chassis. First (18) and second (29,30,47) immobilization means are provided to immobilize the runners on the chassis. The trolley comprises sensors (21,22) able to act on the second immobilization means so as to release the sliding of the second runner in the folding direction of the stand.</p> |
