| 摘要 |
<p>1. Perfected hatchway panel for boats, of metallic type, generally produced in aluminium and shaped curved upward in the middle, in such a manner as to rest on all sides on the hatchway coamings, and of which the height decreases gradually toward its two extremities from the middle, characterised in that it consists of a profile including inclined gutters (8) directed perpendicular to the aforementioned extremities and of which the height decreases gradually from the middle of the panel (1) and in that the height of the aforementioned hatchway panel (1), at the level where it rests on a coaming (2, 3), is equal to its material thickness increased by the thickness of the transverse reinforcement (6), in relation to the gutters (8, 9) by which the panel (1) rests on the coamings (2, 3).</p> |
