| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sash that can unfailingly close its corner parts by means of a heat-foamable agent when exposed to a high temperature in the event of fire. <P>SOLUTION: A frame body 1, formed by framing upper and bottom frames 10 and 11 and left and right vertical frames 12 and 12, stores an inner paper screen 2 and an outer paper screen 3, which include a frame body 4 formed by framing upper and bottom rails 20 and 21, a stile 22 and a meeting stile 23. The lower end corner of a paper screen 3 is provided with a resin corner member 30, the corner member 30 has support parts 30b and 30c, and upper parts of the support parts 30b and 30c are provided with heat-foamable agents 32 and 33. Space parts 30d and 30e are formed under the heat-foamable agents 32 and 33 on the corner member 30, and also the upper surface side of the heat-foamable agents 32 and 33 are covered with a coating metallic part 31a. <P>COPYRIGHT: (C)2013,JPO&INPIT |
