| 摘要 |
<p>The device (1) has an articulation unit (3) for articulating a support (2) relative to another support (2') between a folded position and an unfolded position of the device, where a footrest (6) extends between the supports. Each support includes an upper portion (20') receiving a portion of a guard rail (7), a lower portion (21') receiving a portion of the footrest, and an intermediate portion (22')interposed between the upper portion and the lower portion and receiving a portion of the articulation unit.</p> |
