| 摘要 |
PROBLEM TO BE SOLVED: To provide a sash, regarding a bottom rail constituting the paper screen of the sash, which can maintain a condition where an indoor side surface is unfailingly abutted an airtight material of a vertical frame by preventing indoor and outdoor directional vibration even if door rollers melt at the occurrence of a fire so as to prevent the occurrence of a gap.SOLUTION: A sill 11 has rail parts 11b and 11c that guide an inner paper screen 2 and an outer paper screen 3 respectively in a longitudinal direction and has paper screen facing parts 11d and 11e that are formed in the indoor side of the rail parts so as to face an indoor side surface of the inner paper screen 2 or the outer paper screen 3, and the outer peripheral surface of the bottom rail 21 has a sloping surface 24c that faces the rail part of the sill 11. The sloping surface 24c is formed of a metallic material and also formed like an inclined surface that is directed from the outdoor inner peripheral side to the indoor outer peripheral side. |
