| 摘要 |
<p>Two panels (1,1') each formed by two metal sheets (3,3' and 4,4') having an insulating material disposed between them, are joined by a retaining element 9 secured by screws. Facing lateral edges of the sheets have folds defining a groove to accommodate a sheet (7,7') for closing the edges of the panels. Two adjacent closing sheets (7, 7') define a hollow which is filled with a spongy packing 8. The panels are symmetrical at their lateral end zones which are provided with an undulating profile capable of being deformed when the screws securing the retaining element are tightened. This deformation ensures a satisfactory join between the panels. <IMAGE></p> |
