JP6857106B2

JP6857106B2 - sash

Info

Publication number: JP6857106B2
Application number: JP2017183081A
Authority: JP
Inventors: 晃尚澤田; 勇丸池; 貴広米道; 荒井　直樹; 直樹荒井; 安紀大楠
Original assignee: Sankyo Tateyama Inc
Current assignee: Sankyo Tateyama Inc
Priority date: 2017-09-22
Filing date: 2017-09-22
Publication date: 2021-04-14
Anticipated expiration: 2037-09-22
Also published as: JP2019060070A

Description

建築物等の開口部に配置されるサッシに関する。 Regarding sashes placed in openings of buildings, etc.

従来、建築物の開口部に配置されるサッシとして、高い断熱性を有する樹脂枠及び樹脂框を備えるサッシが知られている。 Conventionally, as a sash arranged in an opening of a building, a sash provided with a resin frame and a resin stile having high heat insulating properties is known.

特開２０１６−１０８９０９号公報Japanese Unexamined Patent Publication No. 2016-108909

特許文献１に示す樹脂サッシにおいては、樹脂材料の特徴を生かして高い断熱性を有することができるが、火炎や熱には弱いという一面があった。
しかし、近年、樹脂材料からなる部位を備える断熱サッシにおいても、高い防火性能が求められるようになっている。 The resin sash shown in Patent Document 1 can have high heat insulating properties by taking advantage of the characteristics of the resin material, but has one aspect that it is vulnerable to flames and heat.
However, in recent years, even in a heat insulating sash having a portion made of a resin material, high fire prevention performance has been required.

本発明は、上記の事情を鑑みたものであり、断熱性能とともに高い防火性能を備えるサッシを提供することを目的とする。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sash having high fire protection performance as well as heat insulation performance.

本発明の一つの実施形態は、上下枠及び左右の竪枠を有する枠体と、枠体内に開閉自在に配置される内障子及び外障子を備え、枠体の上下枠は、内障子及び外障子を案内する内レール及び外レールを有しており、竪枠は、長手方向に沿って補強部材を有しており、内、外障子の閉鎖時において、外障子の戸先框側の竪枠は、外障子の戸先框の戸先面と室内側面に対向する熱膨張耐火材が補強部材に取り付けられ、内障子の戸先框側の竪枠は、内障子の戸先框の戸先面と室外側面に対向する熱膨張耐火材が補強部材に取り付けられているとともに、内障子及び外障子の戸先框内には、竪枠が有している補強部材と対向する補強部材が配置されているサッシである。
One embodiment of the present invention includes a frame having an upper and lower frames and left and right vertical frames, and an inner sash and an outer sash that can be opened and closed inside the frame, and the upper and lower frames of the frame are the inner sash and the outer. It has an inner rail and an outer rail that guide the shoji, and the vertical frame has a reinforcing member along the longitudinal direction, and when the inner and outer shoji are closed, the vertical on the door end stile side of the outer shoji. As for the frame, the heat-expanding fireproof material facing the door tip surface of the door front stile of the outer shoji and the side surface of the room is attached to the reinforcing member, and the vertical frame on the door front stile side of the inner shoji is the door of the door of the inner shoji. leading face and the outdoor side heat expansion refractory material facing is not attached to the reinforcing member in Rutotomoni, the inner sash and the door destination stile of the outer sash, a reinforcing member facing the reinforcing member vertical frame has It is a sash that is placed.

本実施形態によれば、樹脂材料からなる部材を有するサッシに対して、断熱性能を維持しながら、防火性能を付与することができる。 According to the present embodiment, it is possible to impart fireproof performance to a sash having a member made of a resin material while maintaining heat insulating performance.

本発明の実施形態に係るサッシの外観図である。It is external drawing of the sash which concerns on embodiment of this invention. 本発明の実施形態に係るサッシの竪断面図である。It is a vertical sectional view of the sash which concerns on embodiment of this invention. 本発明の実施形態に係るサッシの横断面図である。It is sectional drawing of the sash which concerns on embodiment of this invention. 本発明の実施形態に係るサッシの上枠部分の拡大図であり、（ａ）は火災前の状態であり、（ｂ）は火災後の状態を示す図である。It is an enlarged view of the upper frame part of the sash which concerns on embodiment of this invention, (a) is a state before a fire, and (b) is a figure which shows the state after a fire. 本発明の実施形態に係るサッシの下枠部分の拡大図であり、（ａ）は火災前の状態であり、（ｂ）は火災後の状態を示す図である。It is an enlarged view of the lower frame part of the sash which concerns on embodiment of this invention, (a) is a state before a fire, and (b) is a figure which shows the state after a fire. 本発明の実施形態に係るサッシの右竪枠部分の拡大図であり、（ａ）は火災前の状態であり、（ｂ）は火災後の状態を示す図である。It is an enlarged view of the right vertical frame part of the sash which concerns on embodiment of this invention, (a) is a state before a fire, and (b) is a figure which shows the state after a fire. 本発明の実施形態に係るサッシの上枠の図であり、（ａ）は下方から見た平面図であり、（ｂ）は（ａ）のａ−ａ断面図であり、（ｃ）は（ａ）のｂ−ｂ断面図である。It is the figure of the upper frame of the sash which concerns on embodiment of this invention, (a) is a plan view seen from below, (b) is a cross-sectional view of aa of (a), (c) is (c). It is a bb cross-sectional view of a). 本発明の実施形態に係るサッシの内障子の組み立て図である。It is an assembly drawing of the sash shoji which concerns on embodiment of this invention. 本発明の実施形態に係るサッシの下框と右竪框との接合部の図であり、（ａ）は分解斜視図であり、（ｂ）は分解正面図であり、（ｃ）は分解平面図である。It is a figure of the joint part of the lower sash and the right sash which concerns on embodiment of this invention, (a) is an exploded perspective view, (b) is an exploded front view, and (c) is an exploded plane. It is a figure. 本発明の実施形態に係るサッシの下框と右竪框との接合部の図であり、（ａ）は斜視図であり、（ｂ）は正面図であり、（ｃ）は平面図である。It is a figure of the joint part of the lower sash and the right sash which concerns on embodiment of this invention, (a) is a perspective view, (b) is a front view, (c) is a plan view. .. 本発明の実施形態に係るサッシの端部キャップ及びコーナーブロックの図であり、（ａ）はコーナーブロックの側面図であり、（ｂ）はコーナーブロックの正面図であり、（ｃ）は端部キャップの側面図であり、（ｄ）は端部キャップの正面図であり、（ｅ）は端部キャップの平面図である。It is a figure of the end cap and the corner block of the sash which concerns on embodiment of this invention, (a) is a side view of a corner block, (b) is a front view of a corner block, (c) is an end part. It is a side view of a cap, (d) is a front view of an end cap, and (e) is a plan view of an end cap.

本発明の実施形態に係るサッシについて、図面を参考にして説明する。
本発明の実施形態に係るサッシは、図１に示すように、建物開口部に配置される枠体１０と、枠体１０に対して摺動自在に配置される内障子２０及び外障子３０を備えている。
本実施形態のサッシの枠体１０は、上枠１１，下枠１２及び左、右竪枠１３，１４を有しており、各枠材は枠組されることなく、上枠１１，下枠１２及び左、右竪枠１３，１４がそれぞれ建物開口部の内周面にビス等の固定手段によって固定されることで建物開口部の四周に亘る枠体１０が形成されている。
また、本実施形態のサッシの内障子２０は、上框２１、下框２２、左竪框（召合框）２３及び右竪框（戸先框）２４を四周に組んで、その内周にパネル体２５を取り付けて形成されており、外障子３０は、上框３１、下框３２、左竪框（戸先框）３３及び右竪框（召合框）３４を四周に組んで、その内周にパネル体３５を取り付けて形成されている。 The sash according to the embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the sash according to the embodiment of the present invention includes a frame body 10 arranged in a building opening, and an inner shoji 20 and an outer shoji 30 slidably arranged with respect to the frame body 10. I have.
The frame body 10 of the sash of the present embodiment has an upper frame 11, a lower frame 12, and left and right vertical frames 13, 14, and each frame material is not framed, and the upper frame 11, the lower frame 12 The left and right vertical frames 13 and 14 are fixed to the inner peripheral surfaces of the building opening by fixing means such as screws, so that the frame body 10 extending over the four circumferences of the building opening is formed.
Further, the internal shoji 20 of the sash of the present embodiment is formed by assembling the upper stile 21, the lower stile 22, the left sash (combination stile) 23 and the right sash (door end stile) 24 into four laps, and on the inner circumference thereof. The panel body 25 is attached to the outer sash window 30, and the outer sash window 30 is formed by assembling the upper sash 31, the lower sash 32, the left sash (door end sash) 33, and the right sash (combination sash) 34 in four laps. It is formed by attaching a panel body 35 to the inner circumference.

（枠体の構成）
枠体１０の上枠１１は、図２に示すように、樹脂材料からなる略平板状の上枠本体１１１と、アルミ合金等の金属材料からなる上レール部材１１２を有している。そして、上レール部材１１２が上枠本体１１１の内周面(下面)に配置された状態で、上枠本体１１１と上レール部材１１２はビス等の固定手段ｂにより、建物開口部の内周面（下面）にともに固定されている。
上枠本体１１１は、建物開口部に固定される上枠本体部１１１ａと、上枠本体部１１１ａの室内側端から垂下する室内側壁部１１１ｂを有している。 (Structure of frame)
As shown in FIG. 2, the upper frame 11 of the frame body 10 has a substantially flat upper frame main body 111 made of a resin material and an upper rail member 112 made of a metal material such as an aluminum alloy. Then, in a state where the upper rail member 112 is arranged on the inner peripheral surface (lower surface) of the upper frame main body 111, the upper frame main body 111 and the upper rail member 112 are attached to the inner peripheral surface of the building opening by a fixing means b such as a screw. Both are fixed to (bottom surface).
The upper frame main body 111 has an upper frame main body 111a fixed to the opening of the building and an indoor side wall 111b hanging from the indoor end of the upper frame main body 111a.

上レール部材１１２は、上枠本体１１１と共に建物開口部に固定される上レール固定部１１２ａと、上レール固定部１１２ａの室内側より下方に垂設される上内レール１１２ｂと、上レール固定部１１２ａの室外側より下方に垂設される上外レール１１２ｃを有している。
上枠１１の上内レール１１２ｂと上外レール１１２ｃとの間であって、内障子２０及び外障子３０の召合框２３，３４の上方位置にはヒレ状の風止め部を有する風止め部材７１が配置されている。 The upper rail member 112 includes an upper rail fixing portion 112a fixed to the building opening together with the upper frame main body 111, an upper inner rail 112b vertically installed below the indoor side of the upper rail fixing portion 112a, and an upper rail fixing portion. It has an upper / outer rail 112c that is vertically installed below the outdoor side of the 112a.
A windbreak member having a fin-shaped windbreak portion between the upper inner rail 112b and the upper outer rail 112c of the upper frame 11 and above the sashes 23 and 34 of the inner sash 20 and the outer sash 30. 71 is arranged.

枠体１０の下枠１２は、図２に示すように、樹脂材料からなる略平板状の下枠本体１２１と、アルミ合金等の金属材料からなる下レール部材１２２を有している。そして、下レール部材１２２が下枠本体１２１の内周面（上面）に配置された状態で、下枠本体１２１と下レール部材１２２はビス等の固定手段ｂにより、建物開口部の内周面（上面）にともに固定されている。
下枠本体１２１は、建物開口部に固定される下枠本体部１２１ａと、下枠本体部１２１ａの室内側端から上方に立設する室内側壁部１２１ｂを有している。 As shown in FIG. 2, the lower frame 12 of the frame body 10 has a substantially flat plate-shaped lower frame main body 121 made of a resin material and a lower rail member 122 made of a metal material such as an aluminum alloy. Then, in a state where the lower rail member 122 is arranged on the inner peripheral surface (upper surface) of the lower frame main body 121, the lower frame main body 121 and the lower rail member 122 are attached to the inner peripheral surface of the building opening by a fixing means b such as a screw. Both are fixed to (upper surface).
The lower frame main body 121 has a lower frame main body portion 121a fixed to the opening of the building and an indoor side wall portion 121b standing upward from the indoor side end of the lower frame main body portion 121a.

下レール部材１２２は、下枠本体１２１と共に建物開口部に固定される下レール固定部１２２ａと、下レール固定部１２２ａの室内側より上方に立設する室内側下レール１２２２ｂと、下レール固定部１２２ａの室外側より上方に立設する下外レール１２２ｃを有している。
下枠１２の下内レール１２２ｂと下外レール１２２ｃとの間であって、内障子２０及び外障子３０の召合框２３，３４の下方位置にはヒレ状の風止め部を有する風止め部材７２が配置されている。 The lower rail member 122 includes a lower rail fixing portion 122a fixed to the building opening together with the lower frame main body 121, an indoor side lower rail 1222b standing above the indoor side of the lower rail fixing portion 122a, and a lower rail fixing portion. It has a lower outer rail 122c that stands above the outdoor side of 122a.
A windbreak member having a fin-shaped windbreak portion between the lower inner rail 122b and the lower outer rail 122c of the lower frame 12 and below the sashes 23 and 34 of the inner sash 20 and the outer sash 30. 72 are arranged.

枠体１０の左、右竪枠１３，１４は、図３に示すように、樹脂材料からなり略平板状に形成されており、ビス等の固定手段ｂ，ｂにより、建物開口部の内周面に固定されている。
左、右竪枠１３，１４は、建物開口部に固定される左、右竪枠本体部１３１ａ，１４１ａと、左、右竪枠本体部１３１ａ，１４１ａの見込み方向略中央位置から内周方向に突設される中央壁部１３１ｂ，１４１ｂと、左、右竪枠本体部１３１ａ，１４１ａの室内側端から内周方向に突設される室内側壁部１３１ｃ，１４１ｃと、左、右竪枠本体部１３１ａ，１４１ａの室外側端から内周方向に突設される室外側壁部１３１ｄ，１４１ｄとを有している。
中央壁部１３１ｂ，１４１ｂは、内周端に、室内外両側に延びるヒレ状の気密片を有している。ヒレ状の気密片は、内障子２０もしくは外障子３０の閉鎖時において、内、外障子２０，３０の戸先框２４，３３に当接して、内、外障子２０，３０の閉鎖時における内障子２０と右竪枠１４との気密、外障子３０と左竪枠１３との気密をはかっている。 As shown in FIG. 3, the left and right vertical frames 13 and 14 of the frame body 10 are made of a resin material and are formed in a substantially flat plate shape, and the inner circumference of the building opening is formed by fixing means b and b such as screws. It is fixed to the surface.
The left and right vertical frames 13 and 14 are fixed to the opening of the building in the direction of the inner circumference from the substantially central positions of the left and right vertical frame main bodies 131a and 141a and the left and right vertical frame main bodies 131a and 141a. The central wall portions 131b and 141b that are projected, and the indoor side wall portions 131c and 141c that are projected from the indoor side ends of the left and right vertical frame main bodies 131a and 141a in the inner peripheral direction, and the left and right vertical frame main bodies. It has outdoor wall portions 131d and 141d projecting from the outdoor end of 131a and 141a in the inner peripheral direction.
The central wall portions 131b and 141b have fin-shaped airtight pieces extending on both indoor and outdoor sides at the inner peripheral end. The fin-shaped airtight piece abuts on the door stiles 24 and 33 of the inner and outer sashes 20 and 30 when the inner and outer sashes 20 or 30 are closed, and the inner and outer sashes 20 and 30 are closed. The airtightness between the shoji 20 and the right vertical frame 14 and the airtightness between the outer shoji 30 and the left vertical frame 13 are measured.

左竪枠１３は、左竪枠本体部１３１ａの内周側であって中央壁部１３１ｂの室外側に金属材料からなる補強部材１３２を有しており、右竪枠１４は、右竪枠本体部１４１ａの内周面であって中央壁部１４１ｂの室内側に金属材料からなる補強部材１４２を有している。
補強部材１３２，１４２は、アルミ合金やスチール等の金属材料からなる断面略Ｌ字状の長尺部材であり、左、右竪枠１３，１４の全長に亘って配置されている。
左、右竪枠１３，１４に配置された補強部材１３２，１４２は、それぞれ左、右竪枠１３，１４を固定する固定手段ｂ，ｂによって、左、右竪枠本体部１３１ａ，１４１ａとともに建物開口部に固定されている。
そして、左、右竪枠１３，１４に配置された補強部材１３２，１４２の内周面に、内外障子２０，３０の戸先框２４，３３に対向するように加熱膨張材が配置されている。 The left vertical frame 13 has a reinforcing member 132 made of a metal material on the inner peripheral side of the left vertical frame main body 131a and on the outdoor side of the central wall 131b, and the right vertical frame 14 has a right vertical frame main body. A reinforcing member 142 made of a metal material is provided on the inner peripheral surface of the portion 141a and on the indoor side of the central wall portion 141b.
The reinforcing members 132 and 142 are long members having a substantially L-shaped cross section made of a metal material such as an aluminum alloy or steel, and are arranged over the entire lengths of the left and right vertical frames 13 and 14.
Reinforcing members 132 and 142 arranged on the left and right vertical frames 13 and 14 are built together with the left and right vertical frame main bodies 131a and 141a by the fixing means b and b for fixing the left and right vertical frames 13 and 14, respectively. It is fixed to the opening.
Then, on the inner peripheral surfaces of the reinforcing members 132 and 142 arranged on the left and right vertical frames 13 and 14, heat-expanding materials are arranged so as to face the door tip frames 24 and 33 of the inner and outer shoji sashes 20 and 30. ..

本実施形態のサッシの枠体１０を建物開口部に固定するに際しては、例えば、左竪枠１３→下枠１２→右竪枠１４→上枠１１の順番で建物開口部の四周に配置、固定することで、枠体１０を建物開口部の四周に対して配置することができる。
このとき、建物開口部の四隅において、横枠（上枠１１，下枠１２）の少なくとも上内レール１１２ｂ、上外レール１１２ｃ及び下内レール１２２ｂ、下外レール１２２ｃの一部、もしくは、竪枠（左竪枠１３，右竪枠１４）の中央壁部１３１ｂ，１４１ｂの一部を切欠くこと等によって、上枠１１，下枠１２及び左、右竪枠１３，１４同士が取付けに際して干渉することを防止することができる。 When fixing the frame body 10 of the sash of the present embodiment to the building opening, for example, the left vertical frame 13 → the lower frame 12 → the right vertical frame 14 → the upper frame 11 are arranged and fixed on the four circumferences of the building opening in this order. By doing so, the frame body 10 can be arranged with respect to the four circumferences of the opening of the building.
At this time, at least the upper inner rail 112b, the upper outer rail 112c and the lower inner rail 122b, a part of the lower outer rail 122c, or the vertical frame of the horizontal frame (upper frame 11, lower frame 12) at the four corners of the building opening. The upper frame 11, the lower frame 12, and the left and right vertical frames 13 and 14 interfere with each other at the time of mounting by cutting out a part of the central wall portions 131b and 141b of the (left vertical frame 13, right vertical frame 14). Can be prevented.

（内障子の構成）
内障子２０の上框２１は、図２に示すように、樹脂材料からなる上框本体２１１と、アルミ合金等の金属材料からなり上框本体２１１に内装される補強芯材２１２を有している。
上框本体２１１は、パネル体２５を保持するためのパネル間口部２１１ａと、パネル間口部２１１ａの外周側に形成され上内レール１１２ｂに案内される開口部２１１ｂを有し、開口部２１１ｂ内に補強芯材２１２が配置されている。 (Composition of shoji)
As shown in FIG. 2, the upper stile 21 of the inner sash 20 has an upper stile main body 211 made of a resin material and a reinforcing core material 212 made of a metal material such as an aluminum alloy and built in the upper stile main body 211. There is.
The upper stile main body 211 has a panel frontage portion 211a for holding the panel body 25 and an opening portion 211b formed on the outer peripheral side of the panel frontage portion 211a and guided by the upper inner rail 112b, and has an opening portion 211b in the opening portion 211b. A reinforcing core material 212 is arranged.

パネル間口部２１１ａ内には、スチール等の金属材料からなる補強部材２１３が配置されており、パネル体２５が、補強部材２１３及び難燃性のグレイジングチャンネル２１９を介してパネル間口部２１１ａに保持されている。
開口部２１１ｂを構成する室内、外側壁の上端には上内レール１１２ｂに当接もしくは近接する気密片が設けられている。 A reinforcing member 213 made of a metal material such as steel is arranged in the panel frontage portion 211a, and the panel body 25 is held by the panel frontage portion 211a via the reinforcing member 213 and the flame-retardant glazing channel 219. Has been done.
An airtight piece that abuts or approaches the upper inner rail 112b is provided at the upper end of the inner and outer walls forming the opening 211b.

補強芯材２１２は、開口部２１１ｂの底部に沿って配置される底壁部２１２ａと、底壁部２１２ａの室内側端部に連続して開口部２１１ｂの室内壁に沿って延びる室内壁部２１２ｂと、底壁部２１２ａの室外側端部に連続して開口部２１１ｂの外側壁に沿って延びる室外壁部２１２ｃを有している。
開口部２１１ｂに配置された補強芯材２１２とパネル間口部２１１ａに配置された補強部材２１３とは、開口部２１１ｂの底壁を間に挟んで連結手段により連結されている。 The reinforcing core material 212 has a bottom wall portion 212a arranged along the bottom of the opening 211b and an interior wall portion 212b extending along the interior wall of the opening 211b continuously with the indoor end of the bottom wall portion 212a. And an outdoor wall portion 212c that extends continuously along the outer wall of the opening 211b at the outdoor end of the bottom wall portion 212a.
The reinforcing core material 212 arranged in the opening 211b and the reinforcing member 213 arranged in the panel frontage 211a are connected by connecting means with the bottom wall of the opening 211b sandwiched between them.

内障子２０の下框２２は、図２に示すように、樹脂材料からなる下框本体２２１と、アルミ合金等の金属材料からなり下框本体２２１に内装される第１補強芯材２２２及び第２補強芯材２２３を有している。
下框本体２２１は、内周側のパネル間口部２２１ａと、パネル間口部２２１ａの外周に配置される中空部２２１ｂと、外周側の開口部２２１ｃとを有している。 As shown in FIG. 2, the lower stile 22 of the inner sash 20 has a lower stile main body 221 made of a resin material and a first reinforcing core material 222 and a first reinforcing core material 222 made of a metal material such as an aluminum alloy and built in the lower stile main body 221. It has 2 reinforcing core materials 223.
The lower stile main body 221 has a panel frontage portion 221a on the inner peripheral side, a hollow portion 221b arranged on the outer periphery of the panel frontage portion 221a, and an opening portion 221c on the outer peripheral side.

第１補強芯材２２２は、断面略矩形の中空形状をなしており、下框本体２２１の中空部２２１ｂ内に配置されている。第２補強芯材２２３は、矩形中空部と下方に開口する開口部を備える断面形状をなしており、下框本体２２１の開口部２２１ｃの開口内に配置されている。
第１補強芯材２２２の中空部内には、スチール等からなる断面略Ｕ字状の第１補強部材２２４が外周方向に開口するように配置され、第２補強芯材２２３の中空部内及び開口部内には、断面略Ｕ字状の第２補強部材２２５及び第３補強部材２２６がそれぞれ室内方向に開口するように配置されている。 The first reinforcing core member 222 has a hollow shape having a substantially rectangular cross section, and is arranged in the hollow portion 221b of the lower frame main body 221. The second reinforcing core material 223 has a cross-sectional shape including a rectangular hollow portion and an opening that opens downward, and is arranged in the opening of the opening 221c of the lower frame main body 221.
Inside the hollow portion of the first reinforcing core material 222, a first reinforcing member 224 having a substantially U-shaped cross section made of steel or the like is arranged so as to open in the outer peripheral direction, and inside the hollow portion and the opening portion of the second reinforcing core material 223. The second reinforcing member 225 and the third reinforcing member 226, each having a substantially U-shaped cross section, are arranged so as to open in the indoor direction.

パネル間口部２２１ａ内には、スチール等の金属材料からなる第４補強部材２２７が配置されており、パネル体２５が、第４補強部材２２７及び難燃性のグレイジングチャンネル２２９を介してパネル間口部２２１ａに保持されている。
第４補強部材２２７と第１補強芯材２２２及び第１補強部材２２４は、パネル間口部２２１ａの底壁を挟んで連結手段を介して連結されている。
また、第１補強芯材２２２と第２補強芯材２２３及び第２補強部材２２５は、下框本体２２１の中空部２２１ｂの底壁を挟んで連結手段により連結されており、第２補強部材２２５と第３補強部材２２６は、第２補強芯材２２３の中間壁を間に挟んで連結手段により連結されている。
下框本体２２１の開口部２２１ｃの所定位置には、下内レール１２２ｂ上を走行する車輪９２が配置され、下内レール１２２ｂ上を走行自在に配置されている。 A fourth reinforcing member 227 made of a metal material such as steel is arranged in the panel frontage portion 221a, and the panel body 25 communicates with the panel frontage via the fourth reinforcing member 227 and the flame-retardant glazing channel 229. It is held by the portion 221a.
The fourth reinforcing member 227, the first reinforcing core member 222, and the first reinforcing member 224 are connected via a connecting means with the bottom wall of the panel frontage portion 221a interposed therebetween.
Further, the first reinforcing core material 222, the second reinforcing core material 223, and the second reinforcing member 225 are connected by connecting means with the bottom wall of the hollow portion 221b of the lower frame main body 221 sandwiched between them, and the second reinforcing member 225. And the third reinforcing member 226 are connected by connecting means with an intermediate wall of the second reinforcing core member 223 sandwiched between them.
Wheels 92 running on the lower inner rail 122b are arranged at predetermined positions of the opening 221c of the lower stile main body 221 and are arranged so as to be freely travelable on the lower inner rail 122b.

内障子２０の右竪框（戸先框）２４は、図３に示すように、樹脂材料からなり、断面略矩形の中空部を有する右竪框本体部２４１ｂと、右竪框本体部２４１ｂの内周側に形成されパネル体２５を保持するためのパネル間口部２４１ａを有している。 As shown in FIG. 3, the right stile (door tip stile) 24 of the shoji sash 20 is made of a resin material and has a hollow portion having a substantially rectangular cross section. It has a panel frontage portion 241a formed on the inner peripheral side and for holding the panel body 25.

右竪框本体部２４１ｂの中空部内には、スチール等の金属材料からなり外周側に向けて開口する断面略Ｕ字状の第１補強部材２４２が配置されている。パネル間口部２４１ａ内には、金属材料からなり内周側に向けて開口する断面略Ｕ字状の第２補強部材２４３が配置されており、パネル体２５が、第２補強部材２４３及び難燃性のグレイジングチャンネル２４９を介してパネル間口部２４１ａに保持されている。
第１補強部材２４２と第２補強部材２４３とは、右竪框本体部２４１ｂの内周側の壁部を挟んで連結手段により連結されている。
なお、右竪框本体部２４１ｂの中空部内に配置される第１補強材２４２は、略Ｕ字状の断面形状に限らず、例えば、断面略矩形のホロー構造等でもよい。 In the hollow portion of the right stile main body portion 241b, a first reinforcing member 242 made of a metal material such as steel and having a substantially U-shaped cross section that opens toward the outer peripheral side is arranged. In the panel frontage portion 241a, a second reinforcing member 243 made of a metal material and having a substantially U-shaped cross section that opens toward the inner peripheral side is arranged, and the panel body 25 is composed of the second reinforcing member 243 and flame retardant. It is held in the panel frontage portion 241a via the sex glazing channel 249.
The first reinforcing member 242 and the second reinforcing member 243 are connected by connecting means with a wall portion on the inner peripheral side of the right stile main body portion 241b interposed therebetween.
The first reinforcing member 242 arranged in the hollow portion of the right stile main body portion 241b is not limited to a substantially U-shaped cross-sectional shape, and may be, for example, a hollow structure having a substantially rectangular cross-section.

内障子２０の左竪框（召合框）２３は、樹脂材料からなり、図３に示すように、中空部を有する左竪框本体部２３１ｂと左竪框本体部２３１ｂの室外側内周に形成されるパネル間口部２３１ａを有している。
左竪框２３の室外側面には、外障子３０の右竪框（召合框）３４の室内側面との間に煙返しを形成する金属材料からなる煙返し片２３５が取り付けられており、また、左竪框２３の外周面には防火クレセント錠６１が取り付けられている。 The left stile (combination stile) 23 of the internal sash 20 is made of a resin material, and as shown in FIG. 3, the left stile main body 231b and the left stile main body 231b having a hollow portion are formed on the inner circumference of the outdoor side. It has a panel frontage portion 231a to be formed.
On the outdoor side of the left stile 23, a smoke return piece 235 made of a metal material that forms a smoke return with the indoor side surface of the right stile (combination stile) 34 of the outer shoji 30 is attached. A fire prevention crescent lock 61 is attached to the outer peripheral surface of the left stile 23.

左竪框本体部２３１ｂの中空部内には、スチール等の金属材料からなりパネル間口部２３１ａの底壁に沿う見込面部と左竪框本体部２３１ｂの室外側面に沿う見付面部と外周側の見込面部を有する第１補強部材２３２と、第１補強部材２３２に固定され少なくとも左竪框本体部２３１ｂの室内側面に沿う見付面部を有する第２補強部材２３３が配置されている。
一方、パネル間口部２３１ａ内には、内周側に向けて開口する断面略Ｕ字状の第３補強部材２３４が配置されており、第３補強部材２３４の底壁には加熱膨張材ｆが配置されている。そして、パネル体２５が、第３補強部材２３４及び難燃性のグレイジングチャンネル２３９を介してパネル間口部２３１ａに保持されている。 Inside the hollow portion of the left stile main body 231b, there is a prospective surface portion made of a metal material such as steel and along the bottom wall of the panel frontage portion 231a, and a prospective surface portion along the outdoor side surface of the left stile main body portion 231b and an outer peripheral side prospect. A first reinforcing member 232 having a surface portion and a second reinforcing member 233 fixed to the first reinforcing member 232 and having at least a found surface portion along the indoor side surface of the left stile main body portion 231b are arranged.
On the other hand, in the panel frontage portion 231a, a third reinforcing member 234 having a substantially U-shaped cross section that opens toward the inner peripheral side is arranged, and a heating expansion material f is provided on the bottom wall of the third reinforcing member 234. Have been placed. Then, the panel body 25 is held by the panel frontage portion 231a via the third reinforcing member 234 and the flame-retardant glazing channel 239.

第１補強部材２３２と第３補強部材２３４は、左竪框本体部２３１ｂの内周側の壁及び加熱膨張材ｆを間に挟んで連結手段により連結されている。また、第１補強部材２３２と第２補強部材２３３の何れか、もしくは両方に、加熱膨張材ｆが配置されている。
なお、内障子２０に使用されるパネル体２５は、耐火性、耐熱性を有するガラス、例えば、結晶化ガラスにより形成されている。 The first reinforcing member 232 and the third reinforcing member 234 are connected by connecting means with the inner peripheral side wall of the left stile main body 231b and the heat expansion material f sandwiched between them. Further, the heat expansion material f is arranged on either or both of the first reinforcing member 232 and the second reinforcing member 233.
The panel body 25 used for the shoji sash 20 is made of fire-resistant and heat-resistant glass, for example, crystallized glass.

（外障子の構成）
以下に、外障子３０について説明するが、外障子３０と内障子２０とは、上下枠および戸先框について基本的にその構成を同じくするものであるから、ここでは、特に外障子３０の召合框３４について説明し、内障子２０の構成と同様の構成については、その説明を省略する。 (Composition of shoji)
The outer sash 30 will be described below. However, since the outer sash 30 and the inner sash 20 basically have the same configuration for the upper and lower frames and the door stile, here, in particular, the sash 30 is called. The joint frame 34 will be described, and the description of the same configuration as that of the internal shoji 20 will be omitted.

外障子３０の右竪框（召合框）３４は、樹脂材料からなり、図３に示すように、中空部を有する右竪框本体部３４１ｂと右竪框本体部３４１ｂの内周側に形成されるパネル間口部３４１ａを有している。
右竪框（召合框）３４の室内側面には内障子２０の左竪框（召合框）２３の煙返し片２３５とともに煙返しを形成する金属材料からなる煙返し片３４５が取り付けられており、煙返し片３４５の内周側には、防火クレセント受け６２が設けられている。 The right stile (combination stile) 34 of the outer sash 30 is made of a resin material and is formed on the inner peripheral side of the right stile main body 341b and the right stile main body 341b having a hollow portion as shown in FIG. It has a panel frontage portion 341a to be formed.
On the indoor side surface of the right stile (combination stile) 34, a smoke return piece 345 made of a metal material forming a smoke return is attached together with the smoke return piece 235 of the left stile (combination stile) 23 of the internal shoji 20. A fire prevention crescent receiver 62 is provided on the inner peripheral side of the smoke return piece 345.

右竪框（召合框）３４の右竪框本体部３４１ｂの中空部内には、室内側に開口する断面略Ｕ字状の第１補強部材３４２が配置されている。一方、パネル間口部３４１ａ内には、内周側に向けて開口する断面略Ｕ字状の第２補強部材３４３が配置されており、第２補強部材３４３の底壁には加熱膨張材ｆが配置されている。そして、パネル体３５が、第２補強部材３４３及び難燃性のグレイジングチャンネル３４９を介してパネル間口部３４１ａに保持されている。
第１補強部材３４２と第２補強部材３４３は、右竪框本体部３４１ｂの内周側の壁及び加熱膨張材ｆを間に挟んで連結手段により連結されている。また、第１補強部材３４２には、火災時の加熱により膨張する加熱膨張材ｆが配置されている。 In the hollow portion of the right stile main body 341b of the right stile (combination stile) 34, a first reinforcing member 342 having a substantially U-shaped cross section that opens to the indoor side is arranged. On the other hand, in the panel frontage portion 341a, a second reinforcing member 343 having a substantially U-shaped cross section that opens toward the inner peripheral side is arranged, and a heating expansion material f is provided on the bottom wall of the second reinforcing member 343. Have been placed. Then, the panel body 35 is held by the panel frontage portion 341a via the second reinforcing member 343 and the flame-retardant glazing channel 349.
The first reinforcing member 342 and the second reinforcing member 343 are connected by connecting means with the inner peripheral side wall of the right stile main body 341b and the heat expansion material f sandwiched between them. Further, a heating / expanding material f that expands due to heating at the time of a fire is arranged on the first reinforcing member 342.

以上、本実施形態においては、建物開口部の室内側に配置されサッシは、上下左右の枠体が略平板状の部材と上下のレール部材等により構成されているので、略平板状の部材を建物開口部に順次配置して固定し、上、下枠体の内周面に上、下レール部材を配置して、ビス等の固定手段によって建物開口部に固定して施工することができるので、例えば、室外側に建具が既に施工されている建物の開口部に対しても、後付けで簡単に施工することができ、また、施工後の開口面積の減少を少なく抑えることができる。 As described above, in the present embodiment, the sash arranged on the indoor side of the building opening has a substantially flat plate-shaped member because the upper, lower, left and right frames are composed of substantially flat plate-shaped members, upper and lower rail members, and the like. Since it is possible to sequentially arrange and fix the building opening, arrange the upper and lower rail members on the inner peripheral surfaces of the upper and lower frames, and fix the upper and lower rail members to the building opening by fixing means such as screws. For example, even an opening of a building in which fittings have already been constructed on the outdoor side can be easily retrofitted, and a decrease in the opening area after construction can be suppressed to a small extent.

本実施形態のサッシの特徴部分である防火構造について、以下に説明する。
まずは、上枠１１と内、外障子２０，３０の上框２１，３１との間の防火構造について、上枠１１と内障子２０の上框２１の構造を参考にして説明する。 The fireproof structure, which is a characteristic part of the sash of the present embodiment, will be described below.
First, the fireproof structure between the upper frame 11 and the upper stiles 21 and 31 of the inner and outer sashes 20 and 30 will be described with reference to the structure of the upper stile 21 of the upper frame 11 and the inner sash 20.

図４（ａ）に示すように、枠体１０を構成する上枠１１は、樹脂材料からなる上枠本体１１１の内周に金属材料からなる上レール部材１１２が配置されて形成されている。
上枠本体１１１の上枠本体部１１１ａは、上レール部材１１２が配置される見込み方向略中央部分に形成された建物開口部に取り付けられる固定部１１１ｃと、固定部１１１ｃの見込み方向で室内側と室内側の両側に連続する内、外段部１１１ｄ，１１１ｅを有しており、内、外段部１１１ｄ，１１１ｅの上面には、加熱膨張材ｆ１１，ｆ１１が配置されている As shown in FIG. 4A, the upper frame 11 constituting the frame body 10 is formed by arranging the upper rail member 112 made of a metal material on the inner circumference of the upper frame main body 111 made of a resin material.
The upper frame main body 111a of the upper frame main body 111 has a fixed portion 111c attached to a building opening formed in a substantially central portion in a prospective direction in which the upper rail member 112 is arranged, and an indoor side in the prospective direction of the fixed portion 111c. The inner and outer steps 111d and 111e are continuous on both sides of the indoor side, and the heating expansion members f11 and f11 are arranged on the upper surfaces of the inner and outer steps 111d and 111e.

上枠本体部１１１ａの見込み方向両端部には、上枠１１を建物開口部に取り付けたときに建物開口部に当接するシール部１１１ｆ，１１１ｇが設けられており、建物開口部と上枠１１との間に配置された加熱膨張材ｆ１１，ｆ１１を保護している。 Seal portions 111f, 111g that come into contact with the building opening when the upper frame 11 is attached to the building opening are provided at both ends of the upper frame main body portion 111a in the prospective direction. The heat expansion materials f11 and f11 arranged between the two are protected.

一方、内障子２０の上框２１は、樹脂材料によりなる上框本体２１１に金属材料からなる複数の補強材が内装されて形成されている。
上框本体２１１の内周側は、室内側に中空壁からなる内パネル間口壁２１１ｃを有し、室外側に中空壁からなる外パネル間口壁２１１ｄを有しており、両パネル間口壁２１１ｃ，２１１ｄによって、パネル間口部２１１ａが形成されている。 On the other hand, the upper stile 21 of the inner sash 20 is formed by incorporating a plurality of reinforcing materials made of a metal material into the upper stile main body 211 made of a resin material.
The inner peripheral side of the upper frame main body 211 has an inner panel frontage wall 211c made of a hollow wall on the indoor side and an outer panel frontage wall 211d made of a hollow wall on the outdoor side. The panel frontage portion 211a is formed by the 211d.

パネル間口部２１１ａには補強部材２１３が配置されており、補強部材２１３の内周には、難燃性のグレイジングチャンネル２１９が配置されている。補強部材２１３とグレイジングチャンネル２１９との間には、加熱膨張材ｆ２１１が設けられている。 A reinforcing member 213 is arranged on the panel frontage portion 211a, and a flame-retardant glazing channel 219 is arranged on the inner circumference of the reinforcing member 213. A heating expansion material f211 is provided between the reinforcing member 213 and the glazing channel 219.

また、上框本体２１１の外周側は、室内側に上方に延びる室内側壁部２１１ｇと、室外側に上方に延びる室外側壁部２１１ｈを有しており、室内側壁部２１１ｇと室外側壁部２１１ｈとによって、開口部２１１ｂが形成されている。
室内側壁部２１１ｇと室外側壁部２１１ｈは、外周端部にそれぞれ係止部２１１ｉ，２１１ｊを有しており、開口部２１１ｂ内に配置された補強芯材２１２の室内壁部２１２ｂの上端及び室外壁部２１２ｃの上端を係止している。 Further, the outer peripheral side of the upper stile main body 211 has an indoor side wall portion 211g extending upward to the indoor side and an outdoor side wall portion 211h extending upward to the outdoor side, and the indoor side wall portion 211g and the outdoor side wall portion 211h , The opening 211b is formed.
The indoor side wall portion 211g and the outdoor side wall portion 211h have locking portions 211i and 211j at the outer peripheral ends, respectively, and the upper end and the outdoor wall of the interior wall portion 212b of the reinforcing core material 212 arranged in the opening 211b. The upper end of the portion 212c is locked.

補強芯材２１２は、開口部２１１ｂの底部に沿って配置される底壁部２１２ａと、底壁部２１２ａの室内側端に連続する室内壁部２１２ｂと、底壁部２１２ａの室外側端に連続する室外壁部２１２ｃを有しており、全体として外周方向の開口が深く形成された断面略Ｈ字状の部材として形成されている。
そして、底壁部２１２ａの下面に、加熱膨張材ｆ２１２が配置されるとともに、底壁部２１２ａの上面に加熱膨張材ｆ２１３が配置されている。上框本体２１１の開口部２１１ｂに配置された補強芯材２１２とパネル間口部２１１ａに配置された補強部材２１３は、上框本体２１１の開口部２１１ｂの底壁及び加熱膨張材ｆ２１２を間にして連結手段を介して連結されている。 The reinforcing core material 212 is continuous with the bottom wall portion 212a arranged along the bottom of the opening 211b, the interior wall portion 212b continuous with the indoor side end of the bottom wall portion 212a, and the outdoor end of the bottom wall portion 212a. It has an outdoor wall portion 212c to be formed, and is formed as a member having a substantially H-shaped cross section in which an opening in the outer peripheral direction is deeply formed as a whole.
The heating expansion material f212 is arranged on the lower surface of the bottom wall portion 212a, and the heating expansion material f213 is arranged on the upper surface of the bottom wall portion 212a. The reinforcing core member 212 arranged in the opening 211b of the upper stile main body 211 and the reinforcing member 213 arranged in the panel frontage 211a sandwich the bottom wall of the opening 211b of the upper stile main body 211 and the heat expansion material f212. It is connected via a connecting means.

そして、火災時には、図４（ｂ）に示すように、建物開口部と上枠１１との間に配置された加熱膨張材ｆ１１，ｆ１１が膨張することで、建物開口部と上レール部材１１２との間を塞ぐことができ、また、建物開口部側が延燃されることを防止することができる。
さらに、上框２１の補強芯材２１２の底壁部２１２ａの上面に配置された加熱膨張材ｆ２１３は、室内壁部２１２ｂと室外壁部２１２ｃによって膨張方向が制限され、上枠１１に向かうように膨張する。
そのため、上枠１１に配置された加熱膨張材ｆ１１と補強芯材２１２の底壁部２１２ａの上面に配置された加熱膨張材ｆ２１３が膨張して、建物開口部、金属材料からなる上レール部材１１２及び補強芯材２１２を包み込むように一体となって膨張して、上枠１１と内障子２０との間の空間を塞ぐことができる。 Then, in the event of a fire, as shown in FIG. 4B, the heating expansion members f11 and f11 arranged between the building opening and the upper frame 11 expand, so that the building opening and the upper rail member 112 It is possible to close the space and prevent the fire from spreading on the opening side of the building.
Further, the heating expansion material f213 arranged on the upper surface of the bottom wall portion 212a of the reinforcing core material 212 of the upper stile 21 is restricted in the expansion direction by the indoor wall portion 212b and the outdoor wall portion 212c so as to move toward the upper frame 11. Inflate.
Therefore, the heat expansion material f11 arranged on the upper frame 11 and the heat expansion material f213 arranged on the upper surface of the bottom wall portion 212a of the reinforcing core material 212 expand, and the building opening and the upper rail member 112 made of a metal material expand. And the reinforcing core member 212 can be integrally expanded so as to wrap around the reinforcing core material 212, and the space between the upper frame 11 and the inner sash 20 can be closed.

また、内障子２０の補強芯材２１２の底壁部２１２ａの下面に配置された加熱膨張材ｆ２１２は、膨張することで補強芯材２１２と補強部材２１３との連結部を覆い、補強部材２１３の内周に配置された加熱膨張材ｆ２１１は、膨張することで補強部材２１３と耐火性を有するパネル体２５とを一体的に覆うことができ、内障子２０の上框２１における室内外の連通を抑制することができる。 Further, the heat expanding material f212 arranged on the lower surface of the bottom wall portion 212a of the reinforcing core material 212 of the internal shoji 20 covers the connecting portion between the reinforcing core material 212 and the reinforcing member 213 by expanding, and the reinforcing member 213 The heat-expanding material f211 arranged on the inner circumference can integrally cover the reinforcing member 213 and the panel body 25 having fire resistance by expanding, and can communicate indoors and outdoors with the upper stile 21 of the inner sash 20. It can be suppressed.

次に、下枠１２と内、外障子２０，３０の下框２２，３２との間の防火構造について、下枠１２と内障子２０の下框２２の構成を参考にして説明する。
図５（ａ）に示すように、枠体１０を構成する下枠１２は、樹脂材料からなる下枠本体１２１の内周に金属材料からなる下レール部材１２２が配置されて形成されている。
下枠本体１２１の下枠本体部１２１ａは、下レール部材１２２が配置される見込み方向略中央部分の建物開口部に取り付けられる固定部１２１ｃと、固定部１２１ｃの見込み方向で室内側と室外側の両側に連続する内、外段部１２１ｄ，１２１ｅを有しており、内、外段部１２１ｄ，１２１ｅの下面には、加熱膨張材ｆ１２，ｆ１２が配置されている。 Next, the fireproof structure between the lower frame 12 and the lower stiles 22 and 32 of the inner and outer sashes 20 and 30 will be described with reference to the configuration of the lower stile 22 of the lower frame 12 and the inner sash 20.
As shown in FIG. 5A, the lower frame 12 constituting the frame body 10 is formed by arranging a lower rail member 122 made of a metal material on the inner circumference of a lower frame main body 121 made of a resin material.
The lower frame main body 121a of the lower frame main body 121 has a fixed portion 121c attached to a building opening in a substantially central portion in a prospective direction in which the lower rail member 122 is arranged, and an indoor side and an outdoor side in the prospective direction of the fixed portion 121c. The inner and outer steps 121d and 121e are continuous on both sides, and the heat expansion members f12 and f12 are arranged on the lower surfaces of the inner and outer steps 121d and 121e.

下枠本体部１２１ａの見込み方向両端部には、下枠１２を建物開口部に取り付けたときに建物開口部に当接するシール部１２１ｆ，１２１ｇが設けられており、建物開口部と上枠１１との間に配置された加熱膨張材ｆ１２，ｆ１２を保護している。 Sealed portions 121f and 121g that come into contact with the building opening when the lower frame 12 is attached to the building opening are provided at both ends of the lower frame main body portion 121a in the prospective direction. The heat expansion materials f12 and f12 arranged between the two are protected.

一方、内障子２０の下框２２は、樹脂材料によりなる下框本体２２１に金属材料からなる複数の補強材が内装されて形成されている。
下框本体２２１の内周側は、室内側に中空壁からなる内パネル間口壁２２１ｄを有し、室外側に中空壁からなる外パネル間口壁２２１ｅを有しており、両パネル間口壁２２１ｄ，２２１ｅによって、パネル間口部２２１ａが形成されている。 On the other hand, the lower stile 22 of the internal shoji 20 is formed by incorporating a plurality of reinforcing materials made of a metal material into the lower stile main body 221 made of a resin material.
The inner peripheral side of the lower frame main body 221 has an inner panel frontage wall 221d made of a hollow wall on the indoor side, and an outer panel frontage wall 221e made of a hollow wall on the outdoor side. The panel frontage portion 221a is formed by 221e.

パネル間口部２２１ａには補強部材２２７が配置されており、補強部材２２７の内周には、難燃性のグレイジングチャンネル２２９が配置されている。補強部材２２７とグレイジングチャンネル２２９との間には、加熱膨張材ｆ２２１が設けられている。 A reinforcing member 227 is arranged on the panel frontage portion 221a, and a flame-retardant glazing channel 229 is arranged on the inner circumference of the reinforcing member 227. A heating expansion material f221 is provided between the reinforcing member 227 and the glazing channel 229.

下框本体２２１は、パネル間口部２２１ａの外周側に中空部２２１ｂを有しており、中空部２２１ｂ内には、第１補強芯材２２２が配置されている。
また、下框本体２２１は、中空部２２１ｂのさらに外周側に、室内側から下方に延びる室内側壁部２２１ｆを有し、室外側から下方に延びる室外側壁部２２１ｇを有しており、室内側壁部２２１ｆと室外側壁部２２１ｇとによって、開口部２２１ｃが形成されている。 The lower stile main body 221 has a hollow portion 221b on the outer peripheral side of the panel frontage portion 221a, and the first reinforcing core member 222 is arranged in the hollow portion 221b.
Further, the lower stile main body 221 has an indoor side wall portion 221f extending downward from the indoor side and an outdoor side wall portion 221 g extending downward from the outdoor side on the outer peripheral side of the hollow portion 221b, and has an indoor side wall portion. The opening 221c is formed by the 221f and the outdoor wall portion 221g.

開口部２２１ｃ内には、第２補強芯材２２３が配置されている。第２補強芯材２２３は、中空部２２３ａと、中空部２２３ａの室内側から下方に延びる室内側壁部２２３ｂと、中空部２２３ａの室外側から下方に延びる室外側壁部２２３ｃを有し、室内側壁部２２３ｂと室外側壁部２２３ｃとによって下方開口部２２３ｄが形成されている。
第２補強芯材２２３の中空部２２３ａには第２補強部材２２５が配置され、下方開口部２２３ｄには第３補強部材２２６が配置されており、第２補強部材２２５と第３補強部材２２６は連結手段によって連結されている。 A second reinforcing core material 223 is arranged in the opening 221c. The second reinforcing core material 223 has a hollow portion 223a, an indoor side wall portion 223b extending downward from the indoor side of the hollow portion 223a, and an outdoor side wall portion 223c extending downward from the outdoor side of the hollow portion 223a. The lower opening 223d is formed by the 223b and the outdoor wall portion 223c.
The second reinforcing member 225 is arranged in the hollow portion 223a of the second reinforcing core member 223, the third reinforcing member 226 is arranged in the lower opening 223d, and the second reinforcing member 225 and the third reinforcing member 226 are It is connected by a connecting means.

下方開口部２２３ｄに配置された第３補強部材２２６の下面は、第２補強芯材２２３の室内側壁部２２３ｂと室外側壁部２２３ｃの下端よりも上方位置となっており、下框２２の下端は下方に開口する凹部となっている。
そして、凹部を形成する第２補強芯材２２３の室内側壁部２２３ｂの下端室外側面と室外側壁部２２３ｃの下端室内側面には、それぞれ加熱膨張材ｆ２２２，ｆ２２２が設けられ、第２補強芯材２２３の下方開口部２２３ｄに配置された第３補強部材２２６の下面には、加熱膨張材ｆ２２３が設けられている。 The lower surface of the third reinforcing member 226 arranged in the lower opening 223d is located above the lower ends of the indoor side wall portion 223b and the outdoor wall portion 223c of the second reinforcing core material 223, and the lower end of the lower stile 22 is located. It is a recess that opens downward.
Heat expansion materials f222 and f222 are provided on the lower end outdoor side surface of the indoor side wall portion 223b of the second reinforcing core material 223 forming the recess and the lower end indoor side surface of the outdoor side wall portion 223c, respectively, and the second reinforcing core material 223 is provided. A heating expansion material f223 is provided on the lower surface of the third reinforcing member 226 arranged in the lower opening 223d of the above.

そして、火災時には、図５（ｂ）に示すように、建物開口部と下枠１２との間に配置された加熱膨張材ｆ１２，ｆ１２が膨張することで、建物開口部と下レール部材１２２との間を塞ぐことができ、また、建物開口部側が延燃されることを防止することができる。
さらに、下框２２の第２補強芯材２２３の室内側壁部２２３ｂと室外側壁部２２３ｃに配置された加熱膨張材ｆ２２２，f２２２および第３補強部材２２６の下面に配置された加熱膨張材ｆ２２３は、室内側壁部２２３ｂと室外側壁部２２３ｃによって膨張方向が制限され、下枠１２に向かうように膨張する。
そのため、下枠１２に配置された加熱膨張材ｆ１２と下框２２の凹部に配置された加熱膨張材ｆ２２２，ｆ２２３が、建物開口部、金属材料からなる下レール部材１２２及び第２補強芯材２２３を包み込むように一体となって膨張して、下枠１２と内障子２０との間の空間を塞ぐことができる。 Then, in the event of a fire, as shown in FIG. 5B, the heating expansion members f12 and f12 arranged between the building opening and the lower frame 12 expand, so that the building opening and the lower rail member 122 It is possible to close the space and prevent the fire from spreading on the opening side of the building.
Further, the heat expansion material f222 and f222 arranged on the indoor side wall portion 223b and the outdoor wall portion 223c of the second reinforcing core material 223 of the lower stile 22 and the heat expansion material f223 arranged on the lower surface of the third reinforcing member 226 are The expansion direction is restricted by the indoor side wall portion 223b and the outdoor wall portion 223c, and the expansion is directed toward the lower frame 12.
Therefore, the heating expansion material f12 arranged in the lower frame 12 and the heating expansion materials f222 and f223 arranged in the recesses of the lower stile 22 are the building opening, the lower rail member 122 made of a metal material, and the second reinforcing core material 223. It can be expanded as a unit so as to wrap around the lower frame 12 and the space between the lower frame 12 and the inner shoji 20 can be closed.

また、下框２２のパネル間口部２２１ａ内の補強部材２２７の内周に配置された加熱膨張材ｆ２２１は、膨張することで補強部材２２７と耐火性を有するパネル体２５とを一体的に覆うことができ、内障子２０の下框２２における室内外の連通を抑制することができる。 Further, the heating expansion material f221 arranged on the inner circumference of the reinforcing member 227 in the panel frontage portion 221a of the lower stile 22 integrally covers the reinforcing member 227 and the panel body 25 having fire resistance by expanding. It is possible to suppress communication between indoors and outdoors in the lower stile 22 of the internal shoji 20.

次に、左、右竪枠１３，１４と内、外障子２０，３０の左、右竪框２３，２４，３３，３４との間の防火構造について、右竪枠１４と内障子２０の右竪框２４の構成を参考にして説明する。 Next, regarding the fire protection structure between the left and right vertical frames 13, 14 and the inside, the left of the outer shoji 20 and 30, and the right stiles 23, 24, 33, 34, the right of the right vertical frame 14 and the inner shoji 20. This will be described with reference to the configuration of the stile 24.

図６（ａ）に示すように、枠体１０を構成する右竪枠１４は、樹脂材料からなり、略平板状の右竪枠本体部１４１ａと、右竪枠本体部１４１ａの見込み方向略中央位置から内周方向に突設される中央壁部１４１ｂと、右竪枠本体部１４１ａの室内側端から内周方向に突設される室内側壁部１４１ｃと、右竪枠本体部１４１ａの室外側端から内周方向に突設される室外側壁部１４１ｄとを有している。 As shown in FIG. 6A, the right vertical frame 14 constituting the frame body 10 is made of a resin material, and has a substantially flat plate-shaped right vertical frame main body portion 141a and a right vertical frame main body portion 141a substantially in the center of the prospective direction. The central wall portion 141b projecting in the inner peripheral direction from the position, the indoor side wall portion 141c projecting in the inner peripheral direction from the indoor side end of the right vertical frame main body 141a, and the outdoor side of the right vertical frame main body 141a. It has an outdoor wall portion 141d projecting from the end in the inner peripheral direction.

右竪枠本体部１４１ａは、外周面に長手方向に沿って複数のリブを有しており、建物開口部に対して所定間隔をあけて取り付けられている。そして、右竪枠１４の外周面の室内側と室外側には、右竪枠１４の長手方向の略全長に亘って加熱膨張材ｆ１４１，ｆ１４１が配置されている。
右竪枠本体部１４１ａの見込み方向両端部には、右竪枠１４を建物開口部に取り付けたときに建物開口部に当接するシール部１４１ｆ，１４１ｇが設けられており、建物開口部と上枠１１との間に配置された加熱膨張材ｆ１４１，ｆ１４１を保護している。 The right vertical frame main body portion 141a has a plurality of ribs on the outer peripheral surface along the longitudinal direction, and is attached to the opening of the building at a predetermined interval. The heat expansion members f141 and f141 are arranged on the indoor side and the outdoor side of the outer peripheral surface of the right vertical frame 14 over substantially the entire length in the longitudinal direction of the right vertical frame 14.
Sealed portions 141f and 141g that come into contact with the building opening when the right vertical frame 14 is attached to the building opening are provided at both ends of the right vertical frame main body 141a in the prospective direction, and the building opening and the upper frame are provided. The heat expansion materials f141 and f141 arranged between the 11 and 11 are protected.

右竪枠１４の内周面に配置される補強部材１４２は、右竪枠本体部１４１ａの内周面に配置される見込み面１４２ａと中央壁部１４１ｂの室内側面に配置される見付け面１４２ｂを有し、断面略Ｌ字状をしている。そして、補強部材１４２は、補強部材１４２の見込み面１４２ａから見付け面１４２ｂの室内側の部位、すなわち内障子２０の閉鎖時において戸先框２４の戸先面と室外側面の角部が近接する部位に、長手方向の略全長に亘って加熱膨張材ｆ１４２，ｆ１４３が配置されている。 The reinforcing member 142 arranged on the inner peripheral surface of the right vertical frame 14 includes a prospective surface 142a arranged on the inner peripheral surface of the right vertical frame main body 141a and a finding surface 142b arranged on the indoor side surface of the central wall portion 141b. It has a substantially L-shaped cross section. The reinforcing member 142 is a portion of the finding surface 142b from the prospective surface 142a of the reinforcing member 142 on the indoor side, that is, a portion where the corner portion of the door tip surface of the door tip stile 24 and the outdoor side surface are close to each other when the internal shoji 20 is closed. The heat expansion materials f142 and f143 are arranged over substantially the entire length in the longitudinal direction.

一方、内障子２０の右竪框２４は、右竪框本体部２４１ｂの内周側の室内側に内パネル間口壁２４１ｃを有し、室外側に外パネル間口壁２４１ｄを有しており、両パネル間口壁２４１ｃ，２４１ｄによって、パネル間口部２４１ａが形成されている。 On the other hand, the right stile 24 of the internal shoji 20 has an inner panel frontage wall 241c on the indoor side on the inner peripheral side of the right stile main body 241b and an outer panel frontage wall 241d on the outdoor side. The panel frontage portion 241a is formed by the panel frontage walls 241c and 241d.

パネル間口部２４１ａには補強部材２４３が配置されており、補強部材２４３の内周には、難燃性のグレイジングチャンネル２４９が配置されている。補強部材２４３とグレイジングチャンネル２４９との間には、加熱膨張材ｆ２４１が設けられている。 A reinforcing member 243 is arranged on the panel frontage portion 241a, and a flame-retardant glazing channel 249 is arranged on the inner circumference of the reinforcing member 243. A heating expansion material f241 is provided between the reinforcing member 243 and the glazing channel 249.

右竪框本体部２４１ｂの中空部内には、補強部材２４２が配置されている。
補強部材２４２は、内周側見込壁２４２ａと、室内側見付壁２４２ｂと、室外側見付壁２４２ｃを有し、外周方向に開口する断面略Ｕ字状の部材により形成されており、内周側見込壁２４２ａの外周面と室内側見付壁２４２ｂの室外側面と室外側見付壁２４２ｃの室内側面には、それぞれ加熱膨張材ｆ２４２，ｆ２４３，ｆ２４４が配置されている。
また、補強部材２４２の内周側見込壁２４２ａの内周面と右縦框本体２４１との間には、加熱膨張材ｆ２４５，２４５が配置されている。 A reinforcing member 242 is arranged in the hollow portion of the right stile main body portion 241b.
The reinforcing member 242 has an inner peripheral side prospect wall 242a, an indoor side finding wall 242b, and an outdoor side finding wall 242c, and is formed of a member having a substantially U-shaped cross section that opens in the outer peripheral direction. Heat expansion materials f242, f243, and f244 are arranged on the outer peripheral surface of the peripheral side prospective wall 242a, the outdoor side surface of the indoor side finding wall 242b, and the indoor side surface of the outdoor side finding wall 242c, respectively.
Further, heat expansion members f245 and 245 are arranged between the inner peripheral surface of the inner peripheral side prospective wall 242a of the reinforcing member 242 and the right vertical frame main body 241.

そして、火災時には、図６（ｂ）に示すように、建物開口部と右竪枠１４との間に配置された加熱膨張材ｆ１４１，ｆ１４１と、右竪枠１４の内周に固定された補強部材１４２の見込み面１４２ａと見付け面１４２ｂに設けられた加熱膨張材ｆ１４２，ｆ１４３が膨張するとともに、右竪框２４の補強部材２４２の内周に配置された加熱膨張材ｆ２４２，ｆ２４３，ｆ２４４が膨張する。
このとき、補強部材２４２の内周に配置された加熱膨張材ｆ２４２，ｆ２４３，ｆ２４４は、外周に開口する補強部材２４２の室内側見付壁２４２ｂと室外側見付壁２４２ｃによって膨張する方向が規制され右竪枠１４に向かうように膨張する。
そのため、右竪框２４の補強部材２４２に配置された加熱膨張材ｆ２４２，ｆ２４３，ｆ２４４と右竪枠１４に配置された各加熱膨張材ｆ１４１，ｆ１４２，ｆ１４３は一体となって、建物開口部、金属材料からなる補強部材１４２及び右縦框２４の補強部材２４２を包み込むように膨張して、右縦枠１４と内障子２０との間を塞ぐことができる。 Then, in the event of a fire, as shown in FIG. 6B, the heat expansion materials f141 and f141 arranged between the building opening and the right vertical frame 14 and the reinforcement fixed to the inner circumference of the right vertical frame 14 The heat expansion materials f142 and f143 provided on the prospective surface 142a and the finding surface 142b of the member 142 expand, and the heat expansion materials f242, f243 and f244 arranged on the inner circumference of the reinforcing member 242 of the right stile 24 expand. To do.
At this time, the heating and expanding materials f242, f243, and f244 arranged on the inner circumference of the reinforcing member 242 are restricted in the direction of expansion by the indoor side finding wall 242b and the outdoor side finding wall 242c of the reinforcing member 242 that open to the outer periphery. It is expanded toward the right vertical frame 14.
Therefore, the heat-expanding materials f242, f243, and f244 arranged on the reinforcing member 242 of the right stile 24 and the heat-expanding materials f141, f142, and f143 arranged on the right vertical frame 14 are integrated into the building opening. It can be expanded so as to wrap the reinforcing member 142 made of a metal material and the reinforcing member 242 of the right vertical frame 24 to close the space between the right vertical frame 14 and the internal shoji 20.

また、右竪框２４のパネル間口部２４１ａ内の補強部材２４３の内周に配置された加熱膨張材ｆ２４１は、膨張することで補強部材２４３と耐火性を有するパネル体２５とを一体的に覆うことができ、内障子２０の右竪框２４における室内外の連通を抑制することができる。 Further, the heat expansion material f241 arranged on the inner circumference of the reinforcing member 243 in the panel frontage portion 241a of the right stile 24 integrally covers the reinforcing member 243 and the panel body 25 having fire resistance by expanding. This makes it possible to suppress indoor / outdoor communication in the right stile 24 of the internal shoji 20.

さらに、本実施形態のサッシは、上記枠体と障子の框との間に配置した加熱膨張材に加えて、図１に示すサッシの四隅の部分ＡないしＤ、及び、内、外障子の召合部の上下部Ｅ，Ｆにおける防火性能を向上させるための構造を備えている。以下、図７を参考にして詳細に説明する。
なお、上枠の四隅部分Ａ，Ｂと下枠の四隅部分Ｃ，Ｄ、及び、上枠の召合部上部Ｅと下枠の召合部上部Ｆは、概ね同様の構成をしているので、ここでは上枠１１を用いて説明し、下枠についてはその説明を省略する。 Further, in the sash of the present embodiment, in addition to the heat expansion material arranged between the frame and the sash of the shoji, the four corners A to D of the sash shown in FIG. It has a structure to improve the fire protection performance in the upper and lower parts E and F of the joint. Hereinafter, a detailed description will be given with reference to FIG. 7.
The four corners A and B of the upper frame, the four corners C and D of the lower frame, and the upper E of the mating portion of the upper frame and the upper F of the mating portion of the lower frame have substantially the same configuration. , Here, the upper frame 11 will be used, and the description of the lower frame will be omitted.

図７に示すように、サッシの上枠１１は、樹脂材料からなる上枠本体１１１と、上枠本体１１１の見込み方向中央部分に配置される上レール部材１１２を備えており、左、右竪枠１３，１４の間に配置されている。
上レール部材１１２は、上内レール１１２ｂと上外レール１１２ｃを有しており、上内レール１１２ｂと上外レール１１２ｃの間であって、上レール部材１１２の見付方向ほぼ中央位置、すなわち内、外障子２０，３０の召合せ部の上部位置には、風止め部材７１が配置されている。 As shown in FIG. 7, the upper frame 11 of the sash includes an upper frame main body 111 made of a resin material and an upper rail member 112 arranged at the central portion in the prospective direction of the upper frame main body 111, and is provided with left and right verticals. It is arranged between the frames 13 and 14.
The upper rail member 112 has an upper inner rail 112b and an upper outer rail 112c, and is located between the upper inner rail 112b and the upper outer rail 112c at a substantially central position in the finding direction of the upper rail member 112, that is, inside. A windbreak member 71 is arranged at the upper position of the mating portion of the outer rails 20 and 30.

風止め部材７１は、弾性を有する軟質の樹脂部材等からなり、上レール部材１１２に固定される平面視矩形板状の固定板部７１１と、固定板部７１１の下面より下方に垂設される風止めヒレ部７１２を有している。本実施形態のサッシの風止めヒレ部７１２は、見込み方向に並ぶ３枚一組のヒレ部が見付方向に３列並んで形成されている。なお、風止め部材７１の構成は特に限定されるものではない。
そして、風止め部材７１の固定板部７１１の下面であって、３列の風止めヒレ部７１２，７１２，７１２の両側及び間には、加熱膨張材ｆ１１２が配置されている。
したがって、内、外障子２０，３０の召合わせ部の上部位置においては、火災時には、風止め部材７１に配置した加熱膨張材ｆ１１２が内、外障子２０，３０の召合框２３，３４の上部位置で膨張し、上枠１１と内障子２０の上框２１との間を塞ぐ加熱膨張材と、上枠１１と外障子３０の上框３１との間を塞ぐ加熱膨張材とを召合せ部の上部において連続することができる。 The windbreak member 71 is made of an elastic soft resin member or the like, and is vertically provided below the plan view rectangular plate-shaped fixing plate portion 711 fixed to the upper rail member 112 and the lower surface of the fixing plate portion 711. It has a windbreak fin portion 712. The windbreak fin portion 712 of the sash of the present embodiment is formed by arranging a set of three fin portions arranged in the prospective direction in three rows in the finding direction. The configuration of the windbreak member 71 is not particularly limited.
The heat expansion material f112 is arranged on both sides and between the three rows of windbreak fin portions 712, 712, 712 on the lower surface of the fixing plate portion 711 of the wind stop member 71.
Therefore, at the upper position of the mating portion of the inner and outer sashes 20 and 30, in the event of a fire, the heating expansion material f112 arranged on the windbreak member 71 is inside and the upper part of the mating stiles 23 and 34 of the outer sashes 20 and 30. A combination portion of a heating and expanding material that expands at a position and closes between the upper frame 11 and the upper stile 21 of the inner sash 20 and a heating and expanding material that closes between the upper frame 11 and the upper stile 31 of the outer sash 30. Can be continuous at the top of.

また、サッシの左竪枠１３の中央壁部１３１ｂの室外側には、内、外障子２０，３０の閉鎖時に外障子３０の戸先框３３の戸先面に向かって膨張する加熱膨張材ｆ１３２及び戸先框３３の室内側面に向かって膨張する加熱膨張材ｆ１３３が配置されており、サッシの右竪枠１４の中央壁部１４１ｂの室内側には、内、外障子２０，３０の閉鎖時に内障子２０の戸先框２４の戸先面に向かって膨張する加熱膨張材ｆ１４２及び戸先框３３の室外側面に向かって膨張する加熱膨張材ｆ１４３が配置されている。
そして、上枠１１の上内レール１１２ｂと上外レール１１２ｃの間であって、左竪枠１３の近傍位置及び右竪枠１４の近傍位置、すなわち内障子２０及び外障子３０の戸先框２４，３３の上部位置には、見込み方向に並ぶ２つの加熱膨張材ｆ１１３，ｆ１１３が配置されている。
したがって、火災時に、上枠１１の戸先側上隅部に配置した加熱膨張材ｆ１１３，ｆ１１３が膨張し、左、右竪枠１３，１４の左、右竪枠本体部１３１ａ，１４１ａの内周及び中間壁部１３１ｂ，１４１ｂに配置されて、内、外障子２０，３０の戸先框２４，３と左、右竪枠１４，１３との間を塞ぐ加熱膨張材ｆ１３２，ｆ１３３，ｆ１４２，ｆ１４３と、上枠１１と内、外障子２０，３０の上框２１、３１との間を塞ぐ加熱膨張材ｆ２１３，ｆ３１３を、枠体１０の上隅部分において連続することができる。 Further, on the outdoor side of the central wall portion 131b of the left vertical frame 13 of the sash, a heating and expanding material f132 that expands toward the door tip surface of the door tip frame 33 of the outer sash 30 when the outer sashes 20 and 30 are closed. A heating and expanding material f133 that expands toward the indoor side surface of the door end stile 33 is arranged, and on the indoor side of the central wall portion 141b of the right vertical frame 14 of the sash, when the inner and outer shoji screens 20 and 30 are closed. A heat-expanding material f142 that expands toward the door-end surface of the door-end stile 24 of the shoji sash 20 and a heat-expanding material f143 that expands toward the outdoor surface of the door-end sash 33 are arranged.
Then, between the upper inner rail 112b and the upper outer rail 112c of the upper frame 11, the position near the left vertical frame 13 and the position near the right vertical frame 14, that is, the door end stile 24 of the inner shoji 20 and the outer shoji 30. Two heat expansion members f113 and f113 arranged in the prospective direction are arranged at the upper positions of, 33.
Therefore, in the event of a fire, the heating expansion materials f113 and f113 arranged at the upper corner of the upper frame 11 on the door end side expand, and the left and right vertical frames 13 and 14 are left and the inner circumferences of the right vertical frame main bodies 131a and 141a. F132, f133, f142, f143, which are arranged on the intermediate wall portions 131b and 141b and close between the door front stiles 24 and 3 of the inner and outer sashes 20 and 30 and the left and right vertical frames 14 and 13. And, the heat expansion members f213 and f313 that close the space between the upper frame 11 and the upper stiles 21 and 31 of the outer sashes 20 and 30 can be continuously provided at the upper corner portion of the frame body 10.

さらに、本実施形態のサッシは、内、外障子自体にも、防火性能を向上させるための構造を備えている。以下、図８ないし１１を参考にして説明する。なお、内障子２０と外障子３０の防火構造は同様であるので、以下の説明おいては、内障子２０を用いて説明する。
本実施形態のサッシの内障子２０は、図８に示すように、左、右竪框２３，２４の内周面に上框２１及び下框２２の端面を突き当ててネジ等の固定手段ｂにより固定することで四周組みされている。
左、右竪框２３，２４の上下端には、樹脂材料からなる端部キャップ８１が装着されており、左、右竪框２３，２４の上、下框２１，２２が当接する部位には、端部キャップ８１に隣接してコーナーブロック８２が配置されている。 Further, the sash of the present embodiment has a structure for improving the fire prevention performance on the inner and outer sashes themselves. Hereinafter, description will be made with reference to FIGS. 8 to 11. Since the fireproof structures of the internal sash 20 and the external sash 30 are the same, the internal sash 20 will be used in the following description.
As shown in FIG. 8, the sash sash window 20 of the present embodiment has a fixing means such as a screw or the like by abutting the end faces of the upper sash 21 and the lower sash 22 against the inner peripheral surfaces of the left and right vertical stiles 23 and 24. It is assembled in four laps by fixing it with.
End caps 81 made of resin material are attached to the upper and lower ends of the left and right stiles 23 and 24, and the upper and lower stiles 21 and 22 of the left and right stiles 23 and 24 are in contact with each other. , A corner block 82 is arranged adjacent to the end cap 81.

内障子２０のコーナー部分の構成について、下框２２と右竪框２４との連結部分を用いて、さらに詳細に説明する。
図９（ａ）に示すように、右竪框２４の下端には、端部キャップ８１が装着されており、端部キャップ８１の上方位置で下框２２の端部が当接する右竪框２４のパネル間口部２４１ａ内には、パネル間口部２４１ａの空間を埋めるようにコーナーブロック８２が配置されている。 The configuration of the corner portion of the internal shoji 20 will be described in more detail with reference to the connecting portion between the lower stile 22 and the right stile 24.
As shown in FIG. 9A, an end cap 81 is attached to the lower end of the right stile 24, and the right stile 24 with which the end of the lower stile 22 abuts above the end cap 81. A corner block 82 is arranged in the panel frontage portion 241a so as to fill the space of the panel frontage portion 241a.

ここで、端部キャップ８１及びコーナーブロック８２を、図１１に示す。
端部キャップ８１は、例えば樹脂材料からなり、図１１（ｃ），（ｄ），（ｅ）に示すように、ブロック状の挿入部８１ａと、挿入部８１ａの下面に形成される蓋部８１ｂと、挿入部８１ａの戸先側に形成される鍔部８１ｃを有している。
挿入部８１ａには、複数のリブ部８１ｄが設けられており、右竪框２４の下端に挿入されることで、端部キャップ８１を右竪框２４の下端に強固に装着することができる。挿入部８１ａが右竪框２４の下端に挿入された状態で、蓋部８１ｂが右竪框２４の下端面を覆い、鍔部８１ｃが右竪框２４の戸先側下端に露出している。 Here, the end cap 81 and the corner block 82 are shown in FIG.
The end cap 81 is made of, for example, a resin material, and as shown in FIGS. 11 (c), 11 (d), and (e), the block-shaped insertion portion 81a and the lid portion 81b formed on the lower surface of the insertion portion 81a. And the flange portion 81c formed on the door end side of the insertion portion 81a.
The insertion portion 81a is provided with a plurality of rib portions 81d, and by being inserted into the lower end of the right vertical stile 24, the end cap 81 can be firmly attached to the lower end of the right vertical stile 24. With the insertion portion 81a inserted into the lower end of the right stile 24, the lid portion 81b covers the lower end surface of the right stile 24, and the collar portion 81c is exposed at the lower end of the right stile 24 on the door end side.

一方、コーナーブロック８２は、アルミ合金等の金属材料からなり、図１１（ａ），（ｂ）に示すように、全体として上下方向に長い立方体形状のブロック部材である。コーナーブロック８２は、右竪框２４のパネル間口部２４１ａ内に収まる断面寸法（パネル間口部２４１ａに収まる補強部材２４３と同程度）を有しており、上下方向に複数のビス等の固定手段用の孔８２ａが形成されている。 On the other hand, the corner block 82 is made of a metal material such as an aluminum alloy, and is a cube-shaped block member that is long in the vertical direction as a whole, as shown in FIGS. 11A and 11B. The corner block 82 has a cross-sectional dimension that fits within the panel frontage portion 241a of the right stile 24 (about the same as the reinforcing member 243 that fits within the panel frontage portion 241a), and is used for fixing means such as a plurality of screws in the vertical direction. Hole 82a is formed.

そして、パネル間口部２４１ａ内に配置されたコーナーブロック８２は、図９（ｂ），（ｃ）に示すように、反戸先側面８２ｃが右竪框２４の下框２２が当接する当接面２４１ｓとほぼ面一となり、下框２２の右端部を右竪框２４の当接面２４１ｓ及びコーナーブロック８２の反戸先側面８２ｃに当接させて、ビス等の固定手段ｂにより固定することで、右竪框２４と下框２２を連結することができる。 Then, as shown in FIGS. 9B and 9C, the corner block 82 arranged in the panel frontage portion 241a has a contact surface on which the side surface 82c of the anti-door end comes into contact with the lower stile 22 of the right stile 24. It is almost flush with 241s, and the right end of the lower stile 22 is brought into contact with the contact surface 241s of the right stile 24 and the counter-door end side surface 82c of the corner block 82, and fixed by a fixing means b such as a screw. , The right stile 24 and the lower stile 22 can be connected.

右竪框２４に下框２２が連結された状態では、図１０に示すように、コーナーブロック８２の上面８２ｂは下框２２のパネル間口部２２１ａ内に配置された補強部材２２７の底壁の上面とほぼ面一となる。
したがって、図１０（ｂ），（ｃ）に示すように、補強部材２２７の底壁に配置された加熱膨張材ｆ２２１をコーナーブロック８２の上面８２ｂにまで配置することができ、右竪框２４のパネル間口部２４１ａ内に配置された補強部材２４３の底壁に配置された加熱膨張材ｆ２４１と角部において近接させることができる。 When the lower stile 22 is connected to the right stile 24, as shown in FIG. 10, the upper surface 82b of the corner block 82 is the upper surface of the bottom wall of the reinforcing member 227 arranged in the panel frontage portion 221a of the lower stile 22. It becomes almost flush with.
Therefore, as shown in FIGS. 10B and 10C, the heat expansion material f221 arranged on the bottom wall of the reinforcing member 227 can be arranged up to the upper surface 82b of the corner block 82, and the right stile 24 can be arranged. It can be brought close to the heat expansion material f241 arranged on the bottom wall of the reinforcing member 243 arranged in the panel frontage portion 241a at the corner portion.

以上のように、本実施形態にかかるサッシにおいては、左、右竪枠１３，１４の見込み方向中央位置に設けた中間壁部１３１ｂ、１４１ｂに、火災時に内、外障子２０，３０の戸先框２４，３３に向かって膨張する加熱膨張材ｆ１３２、ｆ１３３，ｆ１４２，ｆ１４３を配置し、上、下枠１１，１２の内外レール間の少なくとも見付方向端部位置に加熱膨張材ｆ１１３（ｆ１２３）を配置することで、火災時には、左、右竪枠１３，１４と左、右竪框２４，３３との間を塞ぐ加熱膨張材ｆ１３２，ｆ１３３，ｆ１４２，ｆ１４３と、上、下枠１１，１２と内、外障子２０，３０の上框２１，３１、下框２２，３２との間を塞ぐ加熱膨張材ｆ２１３，ｆ３１３，ｆ２２２，ｆ２２３，ｆ１１３，（ｆ３２２，ｆ３２３，ｆ１２３）とを枠体の四隅部において連結することができ、枠体１０の四周に連続する加熱膨張材による防火構造を構築することができる。 As described above, in the sash according to the present embodiment, the door ends of the inner and outer shoji screens 20 and 30 are provided on the intermediate wall portions 131b and 141b provided at the center positions of the left and right vertical frames 13 and 14 in the prospective direction. The heating and expanding materials f132, f133, f142, and f143 that expand toward the stiles 24 and 33 are arranged, and the heating and expanding material f113 (f123) is located at least at the end position in the finding direction between the inner and outer rails of the upper and lower frames 11 and 12. By arranging the above, in the event of a fire, the heating expansion materials f132, f133, f142, f143 and the upper and lower frames 11, 12 that block the space between the left and right vertical frames 13 and 14 and the left and right vertical frames 24 and 33 are provided. The frame includes the heat expansion material f213, f313, f222, f223, f113, (f322, f323, f123) that closes the space between the upper sashes 21, 31 and the lower sashes 22, 32 of the outer sashes 20, 30. It can be connected at the four corners, and a fireproof structure using a heat-expanding material that is continuous around the four circumferences of the frame 10 can be constructed.

また、枠体１０は、建物開口部との間に加熱膨張材を介在させて建物開口部に固定されているので、火災時には、建物開口部との間に介在する加熱膨張材が膨張して、枠１０体が火災の熱によって変形、溶融して生じる建物開口部と枠体１０との間の隙間を塞ぐとともに、建物開口部における躯体を保護することができ、延焼を抑えることができる。
そして、枠体１０と建物開口部との間に配置する加熱膨張材は、枠体１０の外周面全域の室外側と室内側の２条に配置することで、サッシの室内側と室外側のいずれの火災に対してもすばくや膨張させることができ、かつ、加熱膨張材ｆを枠体１０の全面に配置することによる過剰な膨張による枠体１０の変形を防止することができる。 Further, since the frame body 10 is fixed to the building opening with a heating expansion material interposed between the frame body 10 and the building opening, the heating expansion material interposed between the frame body 10 and the building opening expands in the event of a fire. The 10 frames can be deformed and melted by the heat of the fire to close the gap between the building opening and the frame 10, and the skeleton at the building opening can be protected and the spread of fire can be suppressed.
The heat expansion material arranged between the frame body 10 and the opening of the building is arranged on the outdoor side and the indoor side of the entire outer peripheral surface of the frame body 10 so that the indoor side and the outdoor side of the sash can be arranged. It is possible to expedite and expand against any fire, and it is possible to prevent deformation of the frame body 10 due to excessive expansion due to arranging the heat expansion material f on the entire surface of the frame body 10.

さらに、内、外障子２０，３０は、樹脂材料からなる上框本体、下框本体及び左、右竪框本体に、金属材料からなる補強芯材もしくは補強部材が内装されており、補強芯材及び補強部材同士は連結手段により連結されているとともに、補強芯材及び補強部材の適宜部位には、加熱膨張材が配置されている。そして、竪枠に対向する戸先框の竪框本体には、外周側に向けて開口する断面略Ｕ字状の補強部材が配置されており、補強部材の内周面の三面には加熱膨張材が配置されている。
したがって、室内側および室外側の何れの側からの火災に対しても早期に加熱膨張材が膨張し、補強部材の内周で膨張した加熱膨張材は外周側、すなわち竪枠に向けて膨張するので、樹脂材料からなる戸先框本体が溶融、消失したとしても、障子と枠体との間を確実に封鎖することができる。 Further, the inner and outer sashes 20 and 30 have a reinforcing core material or a reinforcing member made of a metal material inside the upper stile main body and the lower stile main body and the left and right vertical stile main bodies made of a resin material. And the reinforcing members are connected to each other by a connecting means, and a heating expansion material is arranged at an appropriate portion of the reinforcing core material and the reinforcing member. A reinforcing member having a substantially U-shaped cross section that opens toward the outer peripheral side is arranged on the vertical frame main body of the door tip frame facing the vertical frame, and heat expansion is performed on three surfaces of the inner peripheral surface of the reinforcing member. The material is arranged.
Therefore, the heat-expanding material expands at an early stage in response to a fire from either the indoor side or the outdoor side, and the heat-expanding material expanded on the inner circumference of the reinforcing member expands toward the outer peripheral side, that is, the vertical frame. Therefore, even if the main body of the door stile made of the resin material melts and disappears, the space between the shoji and the frame can be reliably sealed.

なお、本実施形態のサッシは、それ単独で建物開口部に配置されるサッシとして使用できるが、室外側に既設のサッシが配置された建物開口部の室内側に配置される室内側サッシとして、使用することもできる。
さらに、本発明において、内障子及び外障子の構成は、上記実施形態に限定されるものではなく、本発明の要旨を変更しない範囲において、如何なる障子も用いることができる。
また、障子の框材を補強する補強材の断面形状は、実施形態に示す断面形状に限定されるものではなく、補強材に配置される加熱膨張材の位置も限定されるものではない。例えば、竪框内に配置する補強部材をホロー構造にした場合などには、加熱膨張材は、枠体に対向する面（外周面）等に設けてもよい。
さらに、障子を構成する框材のパネル間口部内に配置される補強部材は、見付け方向に延びる長尺部材として形成されることが好ましいが、ピース状に形成されて框材の見付け方向の複数位置に配置されていてもよい。 The sash of the present embodiment can be used alone as a sash arranged in the building opening, but as an indoor sash arranged on the indoor side of the building opening in which the existing sash is arranged on the outdoor side. It can also be used.
Further, in the present invention, the configurations of the internal and external shoji are not limited to the above-described embodiment, and any shoji can be used as long as the gist of the present invention is not changed.
Further, the cross-sectional shape of the reinforcing material for reinforcing the stile material of the shoji is not limited to the cross-sectional shape shown in the embodiment, and the position of the heat-expanding material arranged on the reinforcing material is not limited. For example, when the reinforcing member arranged in the vertical frame has a hollow structure, the heat expansion material may be provided on a surface (outer peripheral surface) facing the frame.
Further, the reinforcing member arranged in the panel frontage portion of the stile material constituting the shoji is preferably formed as a long member extending in the finding direction, but is formed in a piece shape and is formed at a plurality of positions in the stile material finding direction. It may be arranged in.

１０：枠体
１１：上枠
１２：下枠
１３：左竪枠
１４：右竪枠
２０：内障子
２１：上框
２２：下框
２３：右竪框
２４：右竪框
２５：パネル体
３０：外障子
３１：上框
３２：下框
３３：左竪框
３４：右竪框
３５：パネル体
７１：風止め部材
７２：風止め部材 10: Frame body 11: Upper frame 12: Lower frame 13: Left vertical frame 14: Right vertical frame 20: Shoji screen 21: Upper stile 22: Lower stile 23: Right vertical stile 24: Right vertical stile 25: Panel body 30: External shoji 31: Upper stile 32: Lower stile 33: Left stile 34: Right stile 35: Panel body 71: Wind blocking member 72: Wind blocking member

Claims

It has a frame body with upper and lower frames and left and right vertical frames, and internal and external shoji that can be opened and closed inside the frame.
The upper and lower frames of the frame body have an inner rail and an outer rail for guiding the inner and outer shoji.
The vertical frame has a reinforcing member along the longitudinal direction, and when the inner and outer sashes are closed, the vertical frame on the door stile side of the outer sash is the door front surface of the outer sash and the interior. A heat-expanding refractory material facing the side surface is attached to the reinforcing member, and the vertical frame on the door-end stile side of the shoji is reinforced by the heat-expanding refractory material facing the door-front surface and the outdoor surface of the door-end stile of the shoji. attached to have Rutotomoni,
A sash in which a reinforcing member facing the reinforcing member of the vertical frame is arranged in the door sash of the inner shoji and the outer shoji.