| 摘要 |
<p>The carrier has a cover (1) with a flat region (1a) on the reverse of which are upper abutments (4) that engage with complementary lower abutments (3) on a bridge (16). The cover has a fold (1b) with a slot (5) that closes on a sealed joint (6) on the rear of the bridge. The side-blocks are formed with four feet, each comprising walls with ribbed seals, separating a space. A retaining arm (7) is positioned between each pair of feet. On the reverse of the retaining arm are ribs (8) positioned at regular intervals to form mobile seals with a case. Each block has an protective overhang to protect a drive device whose upper surface is stepped (9a) and which frees the mobile seals.</p> |
