| 摘要 |
PROBLEM TO BE SOLVED: To prevent a foamed material from leaking out to the outer side of a heat insulation door main body and to improve assembling operability as well. SOLUTION: This heat insulation door 5' covers the opening of a housing chamber 4 sectioned and formed by a heat insulation wall inside a main body 3 for housing the merchandise for heat-insulating or cold-insulating the merchandise housed inside, and a fin 24 provided on the heat insulation door 5' assembled by filling the material 13 foamed inside the heat insulation door main body 11' in a box shape for forming an outer peripheral surface is spread inside the heat insulation door main body 11' while being extruded to the outer side by the foamed material 13. Thus, the foamed material 13 is prevented from leaking out to the outer side of the heat insulation door main body 11', and at the time of the assembling work, since bending is made possible by the elasticity of a joining member 10 at a bend part 25 and the direction of the opening of a groove 9 can be changed, the fitting direction of a covering body 7 is provided with the degree of freedom and the assembling work is improved by increasing assembly methods.
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