| 摘要 |
<p>The accessory has a flap (27) distinct from a guard rail (21C), a groove (21D), a slit (25) and a rib (28), and acting between base units and an end unit to bring the end unit in a deployed position. The units (21C, 21D, 25, 28) cooperate for enabling displacement of the base units and the end unit between the deployed position and a folded position. The base units and the end unit engage with a portion of a chute.</p> |
