FIREPROOF WINDOW

To provide a fireproof window which can enhance a flame insulation performance.SOLUTION: A fireproof window 11 includes a glass laminate 12 and a window frame 13. The glass laminate 12 has a first plate glass 12a, a second plate glass 12b, and a resin layer 12c arranged between the first plate glass 12a and the second plate glass 12b. The fireproof window 11 includes a batten 14 arranged to face for instance, a first principal surface S1 in both principal surfaces S1, S2 of the glass laminate 12 so as to fix the glass laminate 12, and a fitting member 15 to fit the batten 14 to the window frame 13. The fitting member 15 has a shaft part 15a comprising a material having a thermal expansion coefficient larger than that of the batten 14, and a first fixing part 15b and a second fixing part 15c connected to both ends of the shaft part 15a. The fireproof window 11 has a fitting structure 18 in which the first fixing part 15b of the fitting member 15 is fixed to the window frame 13, and the second fixing part 15c of the fitting member 15 is fixed to the batten 14.SELECTED DRAWING: Figure 4 【課題】遮炎性能を高めることを可能にした防火窓を提供する。【解決手段】防火窓１１は、合わせガラス１２と、窓枠１３とを備える。合わせガラス１２は、第１板ガラス１２ａ及び第２板ガラス１２ｂと、第１板ガラス１２ａと第２板ガラス１２ｂとの間に配置される樹脂層１２ｃとを有する。防火窓１１は、合わせガラス１２の両主面Ｓ１，Ｓ２のうち、例えば、第１主面Ｓ１に向かい合うように配置され、合わせガラス１２を固定するための押縁１４と、押縁１４を窓枠１３に取り付ける取付部材１５とを備える。取付部材１５は、押縁１４よりも大きい熱膨張係数を有する材料からなる軸部１５ａと、軸部１５ａの両端にそれぞれ接続される第１固定部１５ｂ及び第２固定部１５ｃとを有する。防火窓１１は、取付部材１５の第１固定部１５ｂが窓枠１３に固定され、取付部材１５の第２固定部１５ｃが押縁１４に固定される取付構造１８を備える。【選択図】図４