| 摘要 |
<P>PROBLEM TO BE SOLVED: To simply complete a reform for enhancing fire resistance of a resin sash in a short time from an indoor side with neither erecting a scaffolding nor destroying a wall. Ž<P>SOLUTION: A first metal-made cover member 12 shaped to conform to the shape of the inner circumference of a frame member is mounted on the inner circumference of the resin-made frame member 11, and a second metal-made cover member 14 of a nearly L shaped cross-section having a horizontal face covering the indoor side end of the first cover member and a vertical face covering an indoor side wall section of the frame member is arranged at the indoor side end of the frame member. A decorative heat insulation member 20 made by molding a resin is arranged on the indoor side of the vertical face of the second cover member (claim 1). Fire resistance is assured by the metal-made cover members 12, 14, and heat insulation property is improved by the decorative heat insulation member 20. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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