| 摘要 |
PROBLEM TO BE SOLVED: To provide a hollow panel and a heat insulation case with higher heat insulation properties than the conventional ones.SOLUTION: Hollow panels 11-16 forming an outer wall of a heat insulation case 10 of this invention have a double wall structure in which a pair of facing resin walls 40 and 41 is arranged in the state of facing with each other in a thickness direction, and high insulation properties can be exhibited, and the facing resin walls 40 and 41 are connected by a plurality of hollow connecting parts 42 and 50, and therefore, high strength can be exhibited. Further, openings of recessions 25 and 26 in the connection parts formed on the outer surface by the hollow connecting parts 42 and 50 are closed by a lid body 30, and therefore, the hollow panels 11-16 have the double wall structure also in the hollow connecting parts 42 and 50, and higher heat insulation properties than the conventional ones can be exhibited. |
