PURPOSE: To greatly improve cooling performance and heat insulation performance by providing a resilient first packing around the inner surface of an internal door, a second packing located inwardly of the former, and a latch engaging a heat insulation box.
CONSTITUTION: A stepped part 5 is formed on the inside of an opening in a storage chamber 3, and upper and lower openings defined by a partition plate 6 are freely closed and opened by upper and lower two internal doors 7, 8 in contact with the stepped part 5. Latches 10 are mounted in recessed portions 9 formed frontally on the non-pivoting sides of the internal doors 7, 8, and the latch 10 is protruded to the side thereof so as to engage a heat insulation box 2. Further, there are mounted around the lower surroundings of an internal plate cap 18 a resilient first packing 19 and a second packing 20 located inwardly of the former. By closing the internal door 8 and turning the latch 10, the tip end of the latch 10 is engaged with the lower surface of an engagement part 22 to permit the internal door 8 to keep its closed state. Thereupon, the first packing 19 is compressed and brought into close contact with the stepped part 5. The second packing 20 makes contact with the stepped part 5 inside the first packing 19, whereby an air layer 24 is formed between both packings 19, 20.
SAKURAI TETSUO
YOSHIDA FUKUJI
| JPS59172979U | 1984-11-19 | |||
| JPS61110080U | 1986-07-12 |