| 摘要 |
PROBLEM TO BE SOLVED: To provide a sash capable of preventing a gap from being created by securing airtightness between a stile/rail body and a frame body even though buckling deformation occurs in the stile/rail body in a case of fire, using simple means.SOLUTION: A sash 2 is housed in a frame body 1. The frame body 1 is composed of a head, a sill, and right and left jambs in a square shape. The sash 2 houses a panel body 4 in a stile/rail body 3 which frames upper/lower rails and right/left stiles in a square shape. The head, the sill, and the right and left jambs composing the frame body 1 respectively hold airtight materials 14 contacting to the stile/rail body 3 in a state that the sash 2 is closed. At least one of the airtight materials 14 provided in the head, the sill, and the right and left jambs has an airtight part 14b including a body contact part 14a contacting the stile/rail body 3 and an inclined plane 14c extending to an inner peripheral surface side of the frame body 1 and the stile/rail body 3 side from the body contact part 14a. |
