To provide a resin window without making a resin sash fall off, even if a resin section is softened or burnt down in a fire.
A metallic reinforcing material 16 is respectively arranged on a top rail 11, a bottom rail 12 and left and right stiles 13 of the resin section of the resin sash 10, and a shape as the sash can be held even if the resin section is softened or burnt down by continuing the metallic reinforcing material 16 over the four peripheries by connecting the vertical/horizontal metallic reinforcing materials 16 adjacent in a corner part by a corner metal fitting 17. A metallic reinforcing material 5 is arranged in an upper frame 2 of the resin section of a resin window frame 1, and a bracket 20 is installed in its metallic reinforcing material 5, and a support metal fitting 30 is installed in the metallic reinforcing material 16 of the top rail 11. When the resin section is softened or burnt down in a sash closing state, the resin sash 10 is prevented from falling off even if the respective resin sections are softened or burnt down by suspending and supporting the sash by the support metal fitting 30 and the bracket 20.
NODA KENSUKE
BANDO SEIJI
FUNAKI TAKEHIRO
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Yoshiaki Sato
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