| 摘要 |
<p>The device (1) has contiguous trapezoidal left pivoting and right adjoining ladders (2, 3) with respective left vertical posts (22, 31) and right vertical posts (21, 32) that are connected by bars (60). The left post of the right ladder and the right post of the left ladder are connected together by a joint (8). The right pivoting ladder is connected to a vertical wall of an armored vehicle at the level of its right post by hinges (9a, 9b). The adjoining ladder has an indexing unit (12) that permits locking of the adjoining ladder with respect to the wall along locking position (P1).</p> |
