| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerator capable of filling with polyurethane foam even a portion at which a flow passage of a heat insulation box body is narrowed or complicated, and also capable of suppressing occurrence of an unfilled void or high density region.SOLUTION: In a predetermined region of a wall surface of a heat insulation box body that comprises an outer box 1 and an inner box 2 and forms a heat insulation space in which polyurethane foam fluidizes, foam gas exhaust ports 6A, 6B are formed at at least one place so that an opening area falls within a range of about 50-850 mm.SELECTED DRAWING: Figure 2 |
