| 摘要 |
PROBLEM TO BE SOLVED: To make cut-off performance proper even when an end surface of one shape is displaced in the direction of getting away from a joint surface of the other shape.SOLUTION: In a shape joint structure, a left end surface 12a of a sill 12 is joined to a joint surface 13a of a left jamb 13 in the state of interposing a seal material 30 therebetween. In the seal material 30, a swelling material 33 made of a water-absorbing resin is contained in a part that is deformed by being pushed by at least the sill 12. Preferably, the swelling material 33 constitutes a surface of the seal material 30 that abuts on the left end surface 12a of the sill 12.SELECTED DRAWING: Figure 3 |
