| 摘要 |
<p>The cover has a reinforcement device (3) formed by a set of ribs (13), where the cover is designed in a single-piece integrated manner. The ribs are provided adjacent to each other, and include common contact points (12) and/or define a set of hollow spaces (14). Material sandwich structures (5, 7) are, respectively, arranged at an upper side and a lower side of the reinforcement device. The ribs of the reinforcement device are designed as honeycomb structure.</p> |
