| 摘要 |
<p>The tray (1) has a peripheral pavement (6) comprising a removable outer portion (6b) with a pavement ratchet unit, and a side peripheral wall (3) including an outer face (30) with a wall ratchet unit designed to cooperate with the pavement ratchet unit to maintain the outer portion in folded position. The wall ratchet unit has a wall rib (11) developed on the outer face of the wall and located away from the pavement. The wall-ratchet unit retains the pavement ratchet unit to produce the ratchet of the outer portion. The pavement ratchet unit is matched with free edge (60) of the outer portion.</p> |
