| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily form air heat insulation structure, reduce the occurrence of unevenness and the number of parts and in addition, decrease a cost, and to improve assembling properties, recycle properties, and a heat insulation effect. SOLUTION: By folding a plate-form panel closed part, having a hinge mechanism molded integrally with a panel design part, back to the opposite side to the panel design part, an air layer is formed between the panel design part and the panel closed part to provide a heat insulation effect.</p> |
