| 摘要 |
<p>The invention relates to a multi-functional modular element which is used to form a roof. The inventive element comprises first and second opposing sheets (1, 2) which are connected to one another at least along a perimeter thereof. According to the invention, at least one of the aforementioned first or second sheets (1) comprises one or more hollowed-out forms (3) within said perimeter, which are disposed at a distance from the other sheet. Moreover, the first and second sheets (1, 2) are connected using a perforation-free, cold joining method known as clinching . The connection between the sheets comprises a plurality of connecting zones (4) which are distributed at least along the length of the above-mentioned perimeter and each of said connecting zones (4) comprises a convex-deformed area on one of the sheets (2) which is fixed firmly inside a corresponding concave-deformed area on the other sheet (1).</p> |
