| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a heat insulating panel having high strength and excellent durability.SOLUTION: In a heat insulating panel A, a core material 3 is filled between two metal skins 1 and 2. A plurality of reinforcing materials 4 having a U-shaped cross section are arranged on a surface of the one metal skin 2 on the core material 3 side. The reinforcing materials 4 adjacent with each other are arranged in such a manner that side ends thereof are close to each other.</p> |
