| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat insulation door of an automatic vending machine improved so that insulation efficiency is enhanced and weight is reduced with a simple structure. SOLUTION: The heat insulation inner door 8 is constituted of a box-shaped door plate 1 made of a steel plate formed by opening the rear surface of the door facing the inside of a cabinet, and a resin sheet 8f covering the rear surface of the door plate and fixed to the circumference of the door plate with a rivet 12. The resin sheet is mounted on the rear surface of the door plate, and expandable resin is filled and expanded in a state the circumference of the resin sheet is sealed with a tape 11.
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