| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a sash capable of preventing intrusion of a hot blast, smoke or the like from a drainage hole in the case of a fire and improving fireproof performance. <P>SOLUTION: In a sash with a drainage hole 13 for discharging water in a hollow part 12 to the outdoor side, at a position adjacent to the drainage hole 13, a refractory material 16 foaming by heat of a fire to close the drainage hole 13 is provided. The refractory material 16 is attached to a refractory material attachment member 18 disposed inside or outside of the hollow part 12. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
