| 摘要 |
PROBLEM TO BE SOLVED: To realize sure airtightness, and to improve workability, in a heat insulation airtight structure of a beam connection part.SOLUTION: A heat insulation airtight structure of a beam connection part 1 is provided for connecting an outer peripheral beam 3 extending in the first direction X along an outer wall 2 of a building and an indoor beam 4 for crossing with the first direction X and extending in the second direction Y toward the inside of the building, and comprises heat insulation airtight blocks 7A and 7B for covering outer surfaces 41a and 41b along the second direction Y of the indoor beam 4. The heat insulation airtight blocks 7A and 7B comprise an opposed surface 71d opposed to the outer surfaces 41a and 41b of the indoor beam 4, and the opposed surface 71d is formed with a continuous airtight projection arranged so as to cross with the second direction Y by projecting to the indoor beam 4 side, and this airtight projection is brought into close contact with the outer surfaces 41a and 41b of the indoor beam 4.SELECTED DRAWING: Figure 1 |
