JP2018031190A

JP2018031190A - Fireproof sash

Info

Publication number: JP2018031190A
Application number: JP2016164188A
Authority: JP
Inventors: 晃尚澤田; Akihisa Sawada; 貴之新口; Takayuki Niiguchi; 勇丸池; Isamu Maruike
Original assignee: Sankyo Tateyama Inc
Current assignee: Sankyo Tateyama Inc
Priority date: 2016-08-24
Filing date: 2016-08-24
Publication date: 2018-03-01
Anticipated expiration: 2036-08-24
Also published as: JP6850563B2

Abstract

PROBLEM TO BE SOLVED: To provide a fireproof sash that suppresses deformation of a reinforcing material disposed inside a meeting stile of an outer sash, thus preventing destruction of the meeting stile of the outer sash and blocking connection between indoor and outdoor sides, in a case of fire.SOLUTION: A fireproof sash includes a frame body disposed on an opening of a building, a sash disposed slidably and openably/closably inside the frame body, and a reinforcing material disposed in a meeting stile of the sash. The reinforcing material includes a reinforcing material body made of a long member having an almost U-shaped cross-section and disposed in a hollow part of the meeting stile of the sash over almost an entire length in a longer-side direction, and a piece member fixed on the reinforcing material body. The reinforcing material body is connected to an indoor side surface of the meeting stile, by being disposed with an opening of the U-shaped cross-section facing toward the indoor side and having an inner peripheral side wall part fixed on an inner peripheral side wall of the meeting stile, at the same time having the piece member fixed on the indoor side wall of the meeting stile at a position above a fitting position of a receiver of a crescent-shaped lock of the meeting stile.SELECTED DRAWING: Figure 4

Description

本発明は、建物開口部に配置される防火サッシに関する。 The present invention relates to a fire protection sash disposed in a building opening.

従来、建物開口部に配置される建具として、障子の框材の中空内部に補強材が配置された建具が公知となっている。 2. Description of the Related Art Conventionally, a joinery in which a reinforcing material is disposed in a hollow interior of a shoji sash is known as a joinery disposed in a building opening.

特開２０１５−４８５９８号公報JP 2015-48598 A

前記特許文献１の建具は、火災時に火炎に晒される框材が熱により溶けても、框材の中空内部に配置された補強材により障子の形状を保つことで室内外の火炎や煙の連通を遅らせることができるものであった。
このような特許文献１の建具等は、室外側からの火災に対してある程度の耐久性はあるが、火災時の熱により補強材が延びてしまい、特許文献１の建具の召合框の補強材のように、補強材が内周側でガラス間口のガラス外れ止め等の補強材にネジ等により固定されている場合などには、加熱により弱くなった召合框のガラス間口側壁面がネジ等の固定部分から裂けて室内外が連通したり、内、外召合框が離れて隙間が生じる可能性があった。
特に、外障子の召合框は長尺であることから、加熱による影響を受けやすく、召合框の上方に行くにつれてネジ等の固定部分の変位量は大きくなり、召合框の上方位置での裂けの可能性が高かった。 The joinery disclosed in Patent Document 1 keeps the shape of the shoji screen by the reinforcing material disposed inside the hollow of the firewood, even if the firewood exposed to the flame in the event of a fire is melted by heat, thereby communicating flames and smoke indoors and outdoors. Was something that could delay.
Such joinery of Patent Document 1 has a certain degree of durability against a fire from the outside of the room, but the reinforcing material is extended by heat at the time of the fire, and reinforcement of the summoning fence of the joinery of Patent Document 1 When the reinforcing material is fixed to the reinforcing material such as glass stopper of the glass front opening with screws etc. like the material, the glass front wall side wall surface of the summon bowl weakened by heating is screwed There is a possibility that the inside and outside communicate with each other by tearing from fixed parts such as the inside and outside, and the inside and outside summits are separated to form a gap.
In particular, since the shoji of the shoji is long, it is easily affected by heating, and the displacement of the fixed part such as screws increases as it goes above the sumo soup. The possibility of tearing was high.

本発明は、上記の事情を鑑み、火災時における、障子の召合框の内部に配置された補強材の延び等の変形を抑制し、補強材の変形による障子の召合框の破壊を抑制して、召合部における室内外の連通を防ぐとともに、障子の形状を維持して火災の延焼を抑制することを目的とする。 In view of the above circumstances, the present invention suppresses deformation such as the extension of the reinforcing material arranged inside the shoji sumo bowl during a fire, and suppresses the destruction of the shoji sumo bowl due to the deformation of the reinforcing material. Then, while preventing the indoor and outdoor communication in a summoning part, it aims at maintaining the shape of a shoji and suppressing the spread of fire.

本発明は、建物開口部に配置される枠体と、枠体内に摺動開閉自在に配置される障子と、障子の召合框内に配置される補強材とを備え、補強材は、断面略Ｕ字状の長尺部材からなり障子の召合框の中空部内に長手方向に沿って略全長に配置される補強材本体と、補強材本体に固定されるピース部材を備えており、補強材本体は、断面略Ｕ字状の開口を室内側に向けて配置されて内周側側壁部が召合框の内周側壁に固定されるとともに、ピース部材が召合框のクレセント受けの取付位置よりも上方位置で召合框の室内側壁に固定されることで召合框の室内側面に連結されることを特徴とする。 The present invention comprises a frame disposed in a building opening, a shoji that is slidably opened and closed in the frame, and a reinforcing material that is disposed in a shoji sumo bowl, the reinforcing material having a cross-section. Reinforcement body consisting of a substantially U-shaped long member, and having a reinforcing material body arranged substantially in the full length along the longitudinal direction in the hollow portion of the shoji sumo bowl, and a piece member fixed to the reinforcing material body The material body is arranged with the opening having a substantially U-shaped cross section facing the indoor side, the inner peripheral side wall portion is fixed to the inner peripheral side wall of the summon bowl, and the piece member is attached to the crescent receiver of the summit bowl It is connected to the indoor side surface of the summon bowl by being fixed to the indoor side wall of the summon bowl at a position higher than the position.

本発明により、火災時に、障子の召合框の内部に配置された補強材の変形を抑制することができ、障子の召合框の破壊を防止して室内外の連通を抑制することができ、火災の延焼を遅らせることができる。 According to the present invention, it is possible to suppress the deformation of the reinforcing material disposed inside the shoji sumo bowl in the event of a fire, to prevent the shoji sumo bowl from being destroyed, and to suppress indoor and outdoor communication. Can delay the spread of fire.

本発明の実施形態に係る防火サッシの縦断面図である。It is a longitudinal cross-sectional view of the fire protection sash which concerns on embodiment of this invention. 本発明の実施形態に係る防火サッシの横断面図である。It is a cross-sectional view of a fire protection sash according to an embodiment of the present invention. 本発明の実施形態に係る防火サッシの外障子の召合框内に配置される補強材の図であり、（ａ）は分解図、（ｂ）は全体斜視図である。It is a figure of the reinforcing material arrange | positioned in the summon bowl of the shoji of the fire protection sash which concerns on embodiment of this invention, (a) is an exploded view, (b) is a whole perspective view. 本発明の実施形態に係る防火サッシの外障子の召合框の断面図であり、（ａ）はクレセント受けを固定する位置における横断面図、（ｂ）は召合框の上端付近位置における横断面図である。It is sectional drawing of the sumo spear of the shoji of the fire protection sash which concerns on embodiment of this invention, (a) is a cross-sectional view in the position which fixes a crescent receptacle, (b) is the crossing in the position near the upper end of the summon spear FIG.

本発明の実施形態に係る防火サッシを、図面を参照して説明する。
（全体の構成）
本発明の実施形態に係る防火サッシは、建物開口部に設置され、図１，２に示すように、上枠１１、下枠１２及び左、右縦枠１３，１４を四周に組んでなる枠体１と、上框２１，３１、下框２２，３２、左縦框２３，３３及び右縦框２４，３４を四周に組んでその内周にパネル体が嵌め込まれてなる内、外障子２，３とからなり、枠体１に形成された内、外案内レールに沿って内、外障子２，３を左右方向に移動可能に支持することにより、引き違いサッシとして構成されている。本実施形態の防火サッシにおいては、網戸障子４が、外障子３のさらに室外側に配置されている。
なお、本発明の防火サッシは、引き違いサッシに限るものではなく、片引き窓など、窓枠に対して障子が開閉するものであれば、どのような方式のサッシであってもよい。 A fire protection sash according to an embodiment of the present invention will be described with reference to the drawings.
(Overall configuration)
The fire protection sash according to the embodiment of the present invention is installed in a building opening, and as shown in FIGS. 1 and 2, a frame formed by assembling an upper frame 11, a lower frame 12, and left and right vertical frames 13 and 14 around four sides. The body 1, the upper collar 21, 31, the lower collar 22, 32, the left longitudinal collar 23, 33, and the right longitudinal collar 24, 34 are assembled around the four circumferences, and the panel body is fitted into the inner circumference. , 3 and is formed as a sliding sash by supporting the inner and outer obstacles 2 and 3 movably in the left-right direction along the outer guide rail formed in the frame 1. In the fireproof sash of the present embodiment, the screen door 4 is arranged further outside the door 3.
The fireproof sash according to the present invention is not limited to the sliding sash, and any type of sash may be used as long as the shoji can be opened and closed with respect to the window frame, such as a single sliding window.

（枠体の構成）
図１に示すように、枠体１を構成する上枠１１は、アルミニウム等の金属材料により形成された室外側上部材１１１及び室内側上部材１１２と、室外側上部材１１１と室内側上部材１１２とを連結する樹脂等の断熱材からなる連結部材１１３と、室内側上部材１１２の下面内周に配置固定される樹脂製の樹脂上部材１１４とにより構成されている。
室外側上部材１１１の室外寄りの下面には、外障子３を案内する外案内レール１１１ａ及び網戸障子４を案内する網戸案内レール１１１ｂが垂下されるとともに、室内側上部材１１２の室外側端部の下面には、内障子２を案内する内案内レール１１２ａが垂下されている。 (Frame structure)
As shown in FIG. 1, the upper frame 11 constituting the frame 1 includes an outdoor upper member 111 and an indoor upper member 112, an outdoor upper member 111 and an indoor upper member formed of a metal material such as aluminum. 112, a connecting member 113 made of a heat insulating material such as a resin, and a resin upper resin member 114 disposed and fixed on the inner periphery of the lower surface of the indoor upper member 112.
An outdoor guide rail 111 a for guiding the shoji 3 and a screen door guide rail 111 b for guiding the screen door 4 are suspended from the lower surface of the outdoor upper member 111 on the outdoor side. An inner guide rail 112a for guiding the inner shoji 2 is suspended from the lower surface of the inner sleeve.

樹脂上部材１１４は、室内側上部材１１２の内案内レール１１２ａの室内面を覆う室外壁部１１４ａと、室内側上部材１１２の下面を覆う上壁部１１４ｂと、上壁部１１４ｂの室内側端が下方に垂下してしてなる室内壁部１１４ｃと、室内壁部１１４ｃの下端が室内側に延設されてなる額部１１４ｄとから形成されており、室内側上部材１１２が直接室内空間に露出することを防止している。 The resin upper member 114 includes an outdoor wall portion 114a that covers the indoor surface of the inner guide rail 112a of the indoor upper member 112, an upper wall portion 114b that covers the lower surface of the indoor upper member 112, and an indoor side end of the upper wall portion 114b. Is formed from an indoor wall portion 114c that hangs downward and a forehead portion 114d in which the lower end of the indoor wall portion 114c extends to the indoor side, so that the indoor upper member 112 directly enters the indoor space. Preventing exposure.

内障子２と外障子３の召合せ部の上方位置であって、上枠１１の外案内レール１１１ａと内案内レール１１２ａの間、及び、網戸案内レール１１１ｂと外案内レール１１１ａとの間には、それぞれ風止板ｄ１，風止板ｄ２が配置されている。そして、少なくとも外案内レール１１１ａと内案内レール１１２ａの間の風止板ｄ１と左縦枠１３との間には、上枠１１の室外側上部材１１１の下面を覆う樹脂製の上カバー部材５１が配置されており、内、外障子２，３の閉鎖時において外障子３の室内側に露出される室外側上部材１１１の下面から冷熱が室内に直接伝達されることを防止している。そして、上カバー部材５１には、下方に延びる片状の可動片５１ａが設けられている。 It is located above the summing part of the inner shoji 2 and the outer shoji 3, between the outer guide rail 111a and the inner guide rail 112a of the upper frame 11, and between the screen door guide rail 111b and the outer guide rail 111a. The windshield plate d1 and the windshield plate d2 are respectively disposed. A resin upper cover member 51 that covers the lower surface of the outdoor upper member 111 of the upper frame 11 at least between the windshield d1 between the outer guide rail 111a and the inner guide rail 112a and the left vertical frame 13. Is arranged to prevent cold heat from being directly transmitted into the room from the lower surface of the outdoor upper member 111 exposed to the indoor side of the external obstacle 3 when the external obstacles 2 and 3 are closed. The upper cover member 51 is provided with a piece-like movable piece 51a extending downward.

枠体１を構成する下枠１２は、アルミニウム等の金属材料により形成され中空部１２ａを有する下枠本体１２１と、樹脂材料により形成され下枠本体１２１の室内側上面に配置固定される樹脂下部材１２２とにより構成されている。
樹脂下部材１２２は、下枠本体１２１の上面を覆う底壁部１２２ａと、底壁部１２２ａの室内側端が上方に延設してなる室内壁部１２２ｂと、室内壁部１２２ｂの上端が室内側に延設されてなる額部１２２ｃとから形成されており、下枠本体１２１の室内側上面が直接室内空間に露出することを防止している。 The lower frame 12 constituting the frame body 1 includes a lower frame main body 121 formed of a metal material such as aluminum and having a hollow portion 12a, and a resin bottom formed of a resin material and disposed and fixed on the indoor upper surface of the lower frame main body 121. The member 122 is comprised.
The resin lower member 122 includes a bottom wall portion 122a that covers the upper surface of the lower frame main body 121, an indoor wall portion 122b in which the indoor side end of the bottom wall portion 122a extends upward, and the upper end of the indoor wall portion 122b is a chamber. It is formed from a forehead portion 122c extending inward, and prevents the upper surface on the indoor side of the lower frame main body 121 from being directly exposed to the indoor space.

下枠本体１２１の室外寄りの上面には外障子３を案内する外案内レール１２１ａが設けられ、室内寄りの上面には内障子２を案内する内案内レール１２１ｂが設けられており、下枠本体１２１の室外側壁面には網戸障子４の網戸案内レール１２１ｃが設けられている。
そして、外案内レール１２１ａと内案内レール１２１ｂの間には、下枠本体１２１の上面を覆う樹脂製の下カバー部材５２が配置されている。
下カバー部材５２は、下枠１２の略半分の長さを備えた略矩形長尺形状の板状部材として構成されており、少なくとも下枠１２の召合せ部下方位置に設置された召合せブロックｄ３と左縦枠１３との間に取り付けられ、内、外障子２，３の閉鎖時において室内に露出される下枠本体１２１の上面から冷熱が室内に直接伝達されることを防止している。 An outer guide rail 121a for guiding the shoji 3 is provided on the upper surface of the lower frame body 121 on the outdoor side, and an inner guide rail 121b for guiding the shoji 2 is provided on the upper surface of the lower frame body 121. A screen door guide rail 121c of the screen door shoji 4 is provided on the outdoor wall surface 121 of the screen.
A resin-made lower cover member 52 that covers the upper surface of the lower frame body 121 is disposed between the outer guide rail 121a and the inner guide rail 121b.
The lower cover member 52 is configured as a substantially rectangular plate-like member having a substantially half length of the lower frame 12, and at least a summing block installed at a position below the summing portion of the lower frame 12. It is attached between d3 and the left vertical frame 13 and prevents cold heat from being directly transmitted into the room from the upper surface of the lower frame body 121 exposed to the room when the inner and outer shoji 2, 3 are closed. .

図２に示すように、左縦枠１３は、アルミニウム等の金属材料により形成され内周面に外障子３の戸先框（左縦框）３３に配置される引寄せブロックｆが当接する引寄せ片１３１ａが設けられた本体部材１３１と、樹脂材料により形成され本体部材１３１の室内側内周面に配置固定される樹脂左部材１３２により構成されている。
樹脂左部材１３２は、本体部材１３１に係合され左縦枠１３の室内側内周面を覆う本体部１３２ａと、本体部１３２ａの室内側に延設する額部１３２ｂとにより構成されており、樹脂左部材１３２の本体部１３２ａには、上下方向の複数箇所において内周方向に開口する取付凹部１３２ｃを備え、取付凹部１３２ｃの底壁を本体部材１３１に重合させた状態で、両者を貫通するネジ等の固定手段（図示はない。）で内周側から複数箇所固定することにより、建物の開口部に強固に取付けられている。そして、取付凹部１３２ｃには樹脂製のキャップ１３２ｄが装着されることにより、アルミニウム等の金属材料によりなる左縦枠１３の本体部材１３１を介してネジ等の固定手段に伝達された冷熱が室内への伝達されることを抑制すると共に、ネジ等の固定手段の頭部が室内に露出することによる意匠の低下を抑えている。
なお、取付凹部１３２ｃは、樹脂左部材１３２の長手方向（上下方向）に連続する溝部として構成してもよい。 As shown in FIG. 2, the left vertical frame 13 is formed of a metal material such as aluminum, and the pulling block f disposed on the door rod 33 (left vertical rod) 33 of the shoji 3 is in contact with the inner peripheral surface. The main body member 131 is provided with an approach piece 131a, and the resin left member 132 is formed of a resin material and is disposed and fixed on the inner peripheral surface of the main body member 131 on the indoor side.
The resin left member 132 is configured by a main body portion 132a that is engaged with the main body member 131 and covers the inner peripheral surface of the left vertical frame 13 and a forehead portion 132b that extends to the indoor side of the main body portion 132a. The main body portion 132a of the resin left member 132 includes mounting recesses 132c that open in the inner circumferential direction at a plurality of locations in the vertical direction, and penetrates both in a state where the bottom wall of the mounting recess 132c is superposed on the main body member 131. It is firmly attached to the opening of the building by fixing a plurality of locations from the inner periphery side with fixing means (not shown) such as screws. The mounting recess 132c is fitted with a resin cap 132d, so that the cold heat transmitted to the fixing means such as a screw through the body member 131 of the left vertical frame 13 made of a metal material such as aluminum is indoors. Is suppressed, and design deterioration due to exposure of the head of a fixing means such as a screw to the room is suppressed.
In addition, you may comprise the attachment recessed part 132c as a groove part which continues in the longitudinal direction (up-down direction) of the resin left member 132. FIG.

右縦枠１４は、アルミニウム等の金属材料により形成され内周面に内障子２の戸先框（右縦框）２４に配置される引寄せブロックｆが当接する引寄せ片１４１ａが設けられた本体部材１４１と、樹脂材料により形成され本体部材１４１の室内側内周面に配置固定される樹脂右部材１４２により構成されている。
樹脂右部材１４２は、本体部材１４１に係合される取付部１４２ａと、取付部１４２ａの室内側端より内周方向へ延びる室内壁部１４２ｂと、室内壁部１４２ｂの内周側端より室内側へ延設する額部１４２ｃにより構成され、取付部１４２ａを本体部材１４１に係合させた状態で、両者を貫通するネジ等の固定手段（図示はない。）で内周側から複数箇所固定することにより、建物の開口部に強固に取付けられている。 The right vertical frame 14 is formed of a metal material such as aluminum, and an attracting piece 141a with which an attracting block f disposed on the door rod (right vertical rod) 24 of the inner shroud 2 abuts is provided on the inner peripheral surface. A main body member 141 and a resin right member 142 formed of a resin material and arranged and fixed on the inner peripheral surface on the indoor side of the main body member 141 are configured.
The resin right member 142 includes an attachment portion 142a engaged with the main body member 141, an indoor wall portion 142b extending in the inner circumferential direction from the indoor side end of the attachment portion 142a, and an indoor side from the inner peripheral side end of the indoor wall portion 142b. A plurality of forehead portions 142c extending from the inner peripheral side are fixed by a fixing means (not shown) such as a screw that passes through both of the attachment portions 142a and the main body member 141. Therefore, it is firmly attached to the opening of the building.

（障子の構成）
図１に示すように、内障子２の上框２１は、アルミニウム等の金属材料により形成され中空部２１１ａを有する室外側上框部２１１と樹脂材料により形成され中空部２１２ａを有する室内側上框部２１２とからなる複合框として構成されている。上框２１の外周には、上枠１１に形成された内案内レール１１２ａにより案内される案内溝２１ａが形成されているとともに、上框２１の内周には、室外側上框部２１１と室内側上框部２１２とによってパネル間口２１ｂが形成されている。
案内溝２１ａの室外側上端及び室内側上端には、内案内レール１１２ａに当接もしくは近接する気密材が取付けられており、上枠１１と上框２１との間を気密して、上框２１の上面と上枠１１下面との間を通って外気が直接室内に入り込むことを防止して、サッシの断熱性能を向上させている。また、案内溝２１ａの室内側壁の室外側面及び底壁の上面には、加熱により膨張する加熱膨張材が内案内レール１１２ａに向けて配置されている。
さらに、パネル間口２１ｂには、火災時に複層ガラスからなるパネル体２５が框材から外れることを防止するパネル外れ止め部材７２１が配置されており、パネル外れ止め部材７２１には、加熱により膨張する加熱膨張材が取り付けられている。 (Composition of shoji)
As shown in FIG. 1, the upper collar 21 of the inner shoji 2 includes an outdoor upper collar 211 formed of a metal material such as aluminum and having a hollow portion 211a and an indoor upper collar formed of a resin material and having a hollow portion 212a. It is configured as a composite bag made up of part 212. A guide groove 21 a guided by an inner guide rail 112 a formed in the upper frame 11 is formed on the outer periphery of the upper collar 21, and the outdoor outer upper collar portion 211 and the chamber are disposed on the inner periphery of the upper collar 21. A panel opening 21b is formed by the inner upper flange portion 212.
An airtight material that is in contact with or close to the inner guide rail 112a is attached to the outdoor upper end and the indoor upper end of the guide groove 21a, so that the space between the upper frame 11 and the upper rod 21 is airtight. This prevents the outside air from entering the room directly between the upper surface of the upper frame 11 and the lower surface of the upper frame 11 to improve the heat insulating performance of the sash. In addition, on the outdoor side surface of the indoor side wall of the guide groove 21a and the upper surface of the bottom wall, a heat expansion material that expands by heating is disposed toward the inner guide rail 112a.
Further, a panel detachment preventing member 721 for preventing the panel body 25 made of the double-glazed glass from coming off from the brazing material at the time of a fire is disposed at the panel opening 21b, and the panel detachment preventing member 721 expands by heating. A heating expansion material is attached.

内障子２の下框２２は、アルミニウム等の金属材料により形成され中空部２２１ａを有する室外側下框部２２１と樹脂材料により形成され中空部２２２ａを有する室内側下框部２２２とからなる複合框として構成されており、下框２２の外周には案内溝２２ａが形成されて下枠１２に形成された内案内レール１２１ｂ上を走行する戸車ａが配置されているとともに、下框２２の内周には、室外側下框部２２１と室内側下框部２２２とによってパネル間口２２ｂが形成されている。
案内溝２２ａの室外側下端には、内案内レール１２１ｂに当接する気密材が取付けられており、下枠１２と下框２２との間を気密して、下框２２の下面と下枠１２上面との間を通って外気が直接室内に入り込むことを防止してサッシの断熱性能を向上させている。また、案内溝２２ａの室内側壁の室外側面には、加熱により膨張する加熱膨張材が内案内レール１２１ｂに向けて配置されている。
さらに、パネル間口２２ｂには、火災時に複層ガラスからなるパネル体２５が框材から外れることを防止するパネル外れ止め部材７２２が配置されており、パネル外れ止め部材７２２には、加熱により膨張する加熱膨張材が取り付けられている。 The lower collar 22 of the inner shoji 2 is a composite collar comprising an outdoor lower collar 221 formed of a metal material such as aluminum and having a hollow portion 221a and an indoor lower lower collar 222 formed of a resin material and having a hollow portion 222a. A guide groove 22a is formed on the outer periphery of the lower rod 22, and a door wheel a running on the inner guide rail 121b formed on the lower frame 12 is disposed, and the inner periphery of the lower rod 22 In this case, a panel opening 22b is formed by the outdoor lower flange 221 and the indoor lower flange 222.
An airtight material that contacts the inner guide rail 121b is attached to the lower outside end of the guide groove 22a, and the lower frame 12 and the lower frame 22 are hermetically sealed so that the lower surface of the lower frame 22 and the upper surface of the lower frame 12 are sealed. This prevents the outside air from entering the room directly between the two and improves the heat insulation performance of the sash. In addition, on the outdoor side surface of the indoor side wall of the guide groove 22a, a heat expansion material that expands by heating is disposed toward the inner guide rail 121b.
Further, a panel detachment preventing member 722 that prevents the panel body 25 made of double-glazed glass from coming off from the firewood in the event of a fire is disposed at the panel opening 22b, and the panel detachment preventing member 722 expands by heating. A heating expansion material is attached.

図２に示すように、内障子２の戸先框（右縦框）２４は、アルミニウム等の金属材料により形成され中空部２４１ａを有する室外側戸先框部２４１と、樹脂材料により形成され複数の中空部２４２ａを有する室内側戸先框部２４２とからなる複合框として構成されている。
戸先框（右縦框）２４の外周には右縦枠１４に形成された引寄せ片１４１ａに当接する引寄せブロックｆが設置されているとともに、戸先框（右縦框）２４の内周には、室外側戸先框部２４１と室内側戸先框部２４２とによってパネル間口２４ｂが形成されている。
室外側戸先框部２４１の外周端には内障子２の閉鎖時に引寄せ片１４１ａに当接する気密材が取付けられており、右縦枠１４と戸先框２４との間を気密してサッシの断熱性能を向上させている。
また、パネル間口２４ｂには、火災時に複層ガラスからなるパネル体２５が框材から外れることを防止するパネル外れ止め部材７２４が配置されており、パネル外れ止め部材７２４には、加熱により膨張する加熱膨張材が取り付けられている。 As shown in FIG. 2, the door toe fence (right vertical fence) 24 of the shoji 2 is made of a metal material such as aluminum and has an outdoor door toe collar 241 having a hollow part 241 a and a plurality of resin materials. It is comprised as a composite fence which consists of the indoor side door-end collar part 242 which has the hollow part 242a.
A pulling block f that abuts against a pulling piece 141 a formed on the right vertical frame 14 is installed on the outer periphery of the door toe fence (right vertical fence) 24. A panel front opening 24b is formed around the periphery by the outdoor-side door-end flange 241 and the indoor-side door-end flange 242.
An airtight material that comes into contact with the attracting piece 141a when the inner shoji 2 is closed is attached to the outer peripheral end of the outdoor doorside collar 241. The sash is sealed between the right vertical frame 14 and the doorframe 24. The heat insulation performance is improved.
In addition, a panel detachment preventing member 724 that prevents the panel body 25 made of double-glazed glass from coming off from the brazing material in the event of a fire is disposed at the panel opening 24b, and the panel detachment preventing member 724 expands by heating. A heating expansion material is attached.

内障子２の召合框（左縦框）２３は、アルミニウム等の金属材料により形成され中空部２３１ａを有する室外側召合框部２３１と樹脂材料により形成され中空部２３２ａを有する室内側召合框部２３２とからなり、室内側召合框部２３２が室外側召合框部２３１の室内側面及び外周面、即ち、障子の閉鎖時に室内に露出する面を覆うように一体化され複合框として構成されている。
召合框（左縦框）２３の内周には、室外側召合框部２３１と室内側召合框部２３２とによってパネル間口２３ｂが形成されており、パネル間口２３ｂには、火災時に複層ガラスからなるパネル体２５が框材から外れることを防止するパネル外れ止め部材７２３が配置され、パネル外れ止め部材７２３には加熱により膨張する加熱膨張材が取り付けられている。
召合框（左縦框）２３の外周面にはクレセント錠（図示はない。）が取付けられている。また、内障子２の召合框（左縦框）２３の室外側面には、外障子３の召合框３４に向かって加熱膨張材が配置されている。室外側召合框部２３１の室外側面には煙返し片が形成され、外障子３の召合框３４の室内側面に形成された煙返し片と協働して煙返しｃを構成している。 A summoning cage (left vertical gutter) 23 of the inner shoji 2 is an indoor summoning unit 231 formed of a metal material such as aluminum and having a hollow portion 231a and a hollow portion 232a formed of a resin material. It is made up of a heel part 232, and the indoor side summoning part 232 is integrated to cover the indoor side surface and the outer peripheral surface of the outdoor side summoning part 231, that is, the surface exposed to the room when the shoji is closed, as a composite saddle It is configured.
On the inner periphery of the summit bowl (left vertical bowl) 23, a panel opening 23b is formed by an outdoor summoning fence 231 and an indoor summoning fence 232. A panel detachment preventing member 723 for preventing the panel body 25 made of layered glass from being detached from the brazing material is disposed, and the panel detachment preventing member 723 is attached with a heat expansion material that expands by heating.
A crescent lock (not shown) is attached to the outer peripheral surface of the summon bowl (left vertical bowl) 23. In addition, a heating expansion material is arranged on the outdoor side of the summon cage (left vertical rod) 23 of the inner shoji 2 toward the summit cage 34 of the outer shoji 3. A smoke return piece is formed on the outdoor side surface of the outdoor summoning unit 231, and the smoke return c is configured in cooperation with the smoke return piece formed on the indoor side surface of the summoning cage 34 of the external shoji 3. .

外障子３は、召合框（右縦框）３４の構成が内障子２と異なっており、その他の点においては、概ね内障子２と同様であるので、召合框３４についてのみ説明し、外障子３の他の框材についての説明は省略する。
外障子３の召合框（右縦框）３４は、アルミニウム等の金属材料により形成され中空部３４ａを有しているとともに、中空部３４ａの内周にパネル間口３４ｂが形成されており、パネル間口３４ｂには、火災時に複層ガラスからなるパネル体が框材から外れることを防止するパネル外れ止め部材７３４が配置されている。パネル外れ止め部材７３４には、加熱により膨張する加熱膨張材が取り付けられている。
召合框（右縦框）３４の室内側面の外周端部には内障子２の召合框（左縦框）２３の室外側面に当接する気密材が取付けられており、外障子３の召合框３４と内障子２の召合框２３との間を通って外気が直接室内に入り込むことを防止してサッシの断熱性能を向上させている。また、召合框３４の室内側面には、召合框２３に向かって加熱膨張材が配置されている。
召合框（右縦框）３４の室内側面にはクレセント受け（図示はない。）が取付けられる。 The external shoji 3 is different from the inner shoji 2 in the configuration of the sumo spear 34 (right vertical spade), and is otherwise substantially the same as the inner shoji 2, so only the summon spear 34 will be described. A description of the other shoji 3 is omitted.
The summoning cage (right vertical rod) 34 of the shoji 3 has a hollow portion 34a formed of a metal material such as aluminum, and a panel opening 34b is formed on the inner periphery of the hollow portion 34a. A panel detachment preventing member 734 that prevents the panel body made of double-glazed glass from being detached from the brazing material in the event of a fire is disposed in the frontage 34b. A panel expansion preventing member 734 is attached with a heat expansion material that expands by heating.
An airtight material is attached to the outer peripheral edge of the indoor side surface of the summon cage (right vertical shaft) 34 so as to come into contact with the outdoor side surface of the summon cage 2 (left vertical rod) 23. The heat insulation performance of the sash is improved by preventing the outside air from directly entering the room through the space between the joint 34 and the summon 23 of the inner shoji 2. Further, a heating expansion material is disposed on the indoor side surface of the summon bowl 34 toward the summit bowl 23.
A crescent receptacle (not shown) is attached to the indoor side surface of the summon bowl (right vertical tower) 34.

（補強材による耐火構造）
本実施形態の防火サッシにおいては、建具の重量がかかる下枠１２の中空部内、及び、内障子２、外障子３を構成する縦框材の中空部内に、火災時に建具の形状を保つための補強材が配置されている。
−下枠−
図１に示すように、下枠１２の中空部１２ａ内には、スチールもしくはアルミ合金等からなる補強材９１２が中空部１２ａの上面に固定されて配置されている。
補強材９１２は、中空部の上面に固定される上壁部９１２ａと上壁部９１２ａの室外側端に連続する室外側壁部９１２ｂと室外側壁部９１２ｂの下端より室内方向に連続する底壁部９１２ｃと上壁部９１２ａの室内側端から下方に連続する室内側壁部９１２ｄとからなる長尺部材として形成され、室外側壁部９１２ｂの上方位置の室内側面と下方位置の室外側面には、加熱により膨張する加熱膨張材が排水路等に対向するように配置されており、火災時に排水路等を塞ぐことで、室内外の火炎や煙の連通を防止する。
また、室内側壁部９１２ｄには、断面略Ｌ字状の補助部材９１２ｅが取り付けられており、補助部材９１２ｅの上面には加熱により膨張する加熱膨張材が配置されている。 (Fireproof structure with reinforcing material)
In the fire protection sash of the present embodiment, the shape of the joinery is maintained in the hollow portion of the lower frame 12 where the weight of the joinery is applied, and in the hollow portion of the vertical fence material constituting the inner shoji 2 and the outer shoji 3, in the event of a fire. Reinforcing material is arranged.
-Bottom frame-
As shown in FIG. 1, a reinforcing material 912 made of steel or aluminum alloy or the like is disposed in the hollow portion 12a of the lower frame 12 so as to be fixed to the upper surface of the hollow portion 12a.
The reinforcing material 912 includes an upper wall portion 912a fixed to the upper surface of the hollow portion, an outdoor side wall portion 912b continuous to the outdoor side end of the upper wall portion 912a, and a bottom wall portion 912c continuous in the indoor direction from the lower end of the outdoor side wall portion 912b. And an indoor side wall portion 912d continuous downward from the indoor side end of the upper wall portion 912a. The indoor side surface above the outdoor side wall portion 912b and the outdoor side surface at the lower position are expanded by heating. The heated expansion material is arranged so as to face the drainage channel and the like, and by blocking the drainage channel and the like in the event of a fire, the indoor and outdoor flames and smoke are prevented from communicating.
Further, an auxiliary member 912e having a substantially L-shaped cross section is attached to the indoor side wall portion 912d, and a heating expansion material that expands by heating is disposed on the upper surface of the auxiliary member 912e.

−戸先框−
図２示すように、内、外障子２，３の戸先框２４，３３の室外側戸先框部２４１，３３１の中空部２４１ａ，３３１ａ内には、長手方向に沿ってスチールもしくはアルミニウム合金等からなり断面略Ｕ字状の補強材９２４，９３３が開口部を外周方向に向けて配置されており、断面略Ｕ字状の一側壁部が内障子２の戸先框２４のパネル間口２４ｂに配置されたガラス外れ止め部材７２４及び外障子３の戸先框３３のパネル間口３３ｂに配置されたガラス外れ止め部材７３３にそれぞれビス等の固定手段により固定されている。 -Totochi-
As shown in FIG. 2, inside the hollow portions 241a and 331a of the outdoor doorside flange portions 241 and 331 of the doorside rods 24 and 33 of the inner and outer shoji 2, 3 are steel or aluminum alloy along the longitudinal direction. The U-shaped reinforcing members 924 and 933 are arranged with the opening portion facing the outer circumferential direction, and one side wall portion of the substantially U-shaped cross section is formed in the panel front opening 24b of the door toe 24 of the inner shoji 2 The glass detachment prevention member 724 and the glass detachment prevention member 733 arranged at the panel opening 33b of the door toe 33 of the shoji 3 are respectively fixed by fixing means such as screws.

−召合框−
内障子２の召合框２３の中空部２３１ａ内には、長手方向に沿ってスチールもしくはアルミニウム合金等からなり断面略Ｕ字状の補強材９２３が開口部を室外側に向けて配置されており、断面略Ｕ字状の一側壁部が内障子２の召合框２３のパネル間口２３ｂに配置されたガラス外れ止め部材７２３にビス等の固定手段により固定されている。 -Summoning-
A reinforcing member 923 made of steel or aluminum alloy or the like and having a substantially U-shaped cross section is disposed along the longitudinal direction in the hollow portion 231a of the summon 23 of the inner shoji 2 with the opening portion facing the outdoor side. One side wall portion having a substantially U-shaped cross-section is fixed to a glass detachment preventing member 723 disposed in the panel opening 23b of the summoning cage 23 of the inner shoji 2 by a fixing means such as a screw.

（外障子召合框の補強構造）
外障子３の召合框３４の中空部３４ａ内には、長手方向に沿ってスチールもしくはアルミニウム合金等からなり断面略Ｕ字状の補強材６が開口部を室内側に向けて配置されている。
ここで、外障子３の召合框３４は長尺であり火災による影響を受けやすく、外障子３の召合框３４の中空部３４ａ内に配置された補強材６が変形して上方位置において召合框３４と***したり、外障子３と内障子２が召合せ部において離間して隙間が空いたりするなどの問題があった。
本実施形態の外障子３の召合框３４においては、中空部３４ａ内に配置する補強材６の形状や召合框３４との連結を工夫することにより、召合框３４と補強材６との連継を強固にして、火災時における耐久性を向上させている。以下に、説明する。 (Reinforcement structure of the shoji summon)
A reinforcing member 6 made of steel or aluminum alloy or the like and having a substantially U-shaped cross section is disposed along the longitudinal direction in the hollow portion 34a of the summoning cage 34 of the external shoji 3 with the opening facing the indoor side. .
Here, the summoning cage 34 of the shoji 3 is long and easily affected by fire, and the reinforcing member 6 disposed in the hollow portion 34a of the summing cage 34 of the shoji 3 is deformed and is in the upper position. There were problems such as splitting with the summon cage 34, and the external shoji 3 and the inner shoji 2 being separated from each other at the summoning section.
In the summoning cage 34 of the external shoji 3 of the present embodiment, the shape of the reinforcing material 6 disposed in the hollow portion 34a and the connection with the summing collar 34 are devised so that the summing collar 34 and the reinforcing material 6 The durability of the fire during the fire is improved. This will be described below.

外障子３の召合框（右縦框）３４の中空部内に配置される補強材６は、スチールもしくはアルミニウム合金等からなり、召合框（右縦框）３４の長手方向に沿って配置される補強材本体６１と、補強材本体６１を召合框３４に固定するためのピース部材６２により構成されている。 The reinforcing member 6 disposed in the hollow portion of the summon cage (right vertical rod) 34 of the external shoji 3 is made of steel or aluminum alloy, and is disposed along the longitudinal direction of the summon cage (right vertical rod) 34. The reinforcing member main body 61 and the piece member 62 for fixing the reinforcing member main body 61 to the summon bar 34 are configured.

補強材本体６１は、図３（ａ）に示すように、底壁部６１１と、底壁部６１１の一方側に連続する内周側側壁部６１２と、底壁部６１１の他方側に連続する外周側側壁部６１３を備える断面略Ｕ字状の長尺部材として形成されており、内周側側壁部６１２よりも外周側側壁部６１３の幅寸法が若干大きく形成されている。
内周側側壁部６１２の開口側端部は、長さ方向複数箇所において切欠かれて、ピース部材６２が収まる凹部６１２ｃ，６１２ｄが形成されている。本実施形態の補強材６においては、補強材６を召合框３４内に配置した際にクレセント受けが固定される位置のすぐ上方位置に形成された凹部６１２ｃと、補強材６の略上端位置に形成された凹部６１２ｄが形成されている。
また、内周側側壁部６１２の長さ方向の複数箇所には、召合框３４のパネル間口３４ｂに配置されたガラス外れ止め部材７３４にネジ止め固定するためのネジ孔６１２ｂ，６１２ｂ・・が形成されているとともに、内周側側壁部６１２の下端付近には、下框２２，３２に配置された戸車の位置張設を行うための調節孔６１２ｅが形成されている。 As shown in FIG. 3A, the reinforcing material main body 61 is continuous with the bottom wall portion 611, the inner peripheral side wall portion 612 continuous with one side of the bottom wall portion 611, and the other side of the bottom wall portion 611. The outer side wall 613 is formed as a long member having a substantially U-shaped cross section, and the width of the outer side wall 613 is slightly larger than that of the inner side wall 612.
The opening side end of the inner peripheral side wall 612 is cut out at a plurality of locations in the length direction to form recesses 612c and 612d in which the piece member 62 is accommodated. In the reinforcing member 6 of the present embodiment, a concave portion 612c formed at a position immediately above the position where the crescent receiver is fixed when the reinforcing member 6 is disposed in the summon bowl 34, and the substantially upper end position of the reinforcing member 6 A recess 612d is formed.
Further, screw holes 612b, 612b,... For screwing and fixing to a glass detachment preventing member 734 disposed in the panel opening 34b of the summit bowl 34 are provided at a plurality of locations in the length direction of the inner peripheral side wall 612. In addition to being formed, an adjustment hole 612e is provided in the vicinity of the lower end of the inner peripheral side wall portion 612 for extending the position of the doorwheels arranged in the lower collars 22 and 32.

補強材本体６１の外周側側壁部６１３の長さ方向複数箇所、具体的には、内周側側壁部６１２の凹部６１２ｃ，６１２ｄに対向する高さ位置には、ピース部材６２を固定するネジ孔６１３ａ，６１３ａが形成されている。また、外周側側壁部６１３の下端は、内周側側壁部６１２の戸車の位置張設を行うための調節孔６１２ｅに対向する部位が切欠かれて切欠き部６１３ｂが形成されている。 Screw holes for fixing the piece member 62 at a plurality of positions in the length direction of the outer peripheral side wall portion 613 of the reinforcing material main body 61, specifically, at a height position facing the recesses 612c and 612d of the inner peripheral side wall portion 612. 613a and 613a are formed. Further, the lower end of the outer peripheral side wall 613 is notched at a portion of the inner peripheral side wall 612 that faces the adjustment hole 612e for extending the position of the door wheel, thereby forming a notch 613b.

一方、補強材本体６１を召合框３４に固定するピース部材６２は、例えば断面略Ｗ字状に形成された短尺部材からなり、ピース部材６２の断面略Ｗ字状の一端が補強材本体６１の外周側側壁部６１３のネジ孔６１３ａ，６１３ａにネジ等の連結手段ｂ１，ｂ１により連結される連結片６２１として形成され、断面略Ｗ字状の他端が内周側側壁部６１２の凹部６１２ｃ，６１２ｄ内に配置された状態で召合框３４の室内側壁に固定される固定片６２２として形成されている。 On the other hand, the piece member 62 for fixing the reinforcing material main body 61 to the summon bar 34 is made of, for example, a short member having a substantially W-shaped cross section, and one end of the piece member 62 having a substantially W-shaped cross section is the reinforcing material main body 61. Is formed as a connecting piece 621 connected to the screw holes 613a and 613a of the outer peripheral side wall 613 by connecting means b1 and b1 such as screws, and the other end having a substantially W-shaped cross section is a recess 612c of the inner peripheral side wall 612. , 612d is formed as a fixed piece 622 that is fixed to the indoor side wall of the summon bowl 34.

そして、図３（ｂ）に示すように、補強材本体６１とピース部材６２とが連結手段ｂ１，ｂ１により連結されて一体化された補強材６は、召合框３４の中空部３４ａ内に底壁部６１１が室外側に配置されるように挿入され、クレセント受け８２の取付け位置である図３（ｂ）の断面Ａの部位については、図４（ａ）に示すように、内周側側壁部６１２が外障子３の召合框３４の内周側壁及び召合框３４のパネル間口３４ｂ内に配置されたパネル外れ止め部材７３４に対して固定手段ｂ２により共締め固定されており、図３（ｂ）の断面Ｂの部位については、図４（ｂ）に示すように、内周側側壁部６１２が外障子３の召合框３４の内周側壁及び召合框３４のパネル間口３４ｂ内に配置されたパネル外れ止め部材７３４に対して固定手段ｂ２により共締め固定されるとともに、ピース部材６２の固定片６２２が召合框３４の室内側壁にビス等の固定手段ｂ３により固定されることで、長尺状の補強材６が召合框３４に対して固定されている。 Then, as shown in FIG. 3B, the reinforcing material 6 in which the reinforcing material main body 61 and the piece member 62 are connected and integrated by the connecting means b1 and b1 is placed in the hollow portion 34a of the summoning bowl 34. As shown in FIG. 4 (a), the bottom wall portion 611 is inserted so as to be disposed on the outdoor side, and the portion of the cross section A in FIG. The side wall portion 612 is fastened and fixed together by the fixing means b2 to the inner peripheral side wall of the summing bowl 34 of the external shoji 3 and the panel detachment preventing member 734 disposed in the panel opening 34b of the summing bowl 34. 3 (b), as shown in FIG. 4 (b), the inner peripheral side wall portion 612 has an inner peripheral side wall of the summoning rod 34 of the shoji 3 and a panel opening 34b of the summing rod 34. The fixing means b2 with respect to the panel disengagement member 734 disposed inside The fixing member 622 of the piece member 62 is fixed to the indoor side wall of the summing bowl 34 by fixing means b3 such as a screw, so that the long reinforcing member 6 is attached to the summing bowl 34. It is fixed against.

以上のように、本実施形態の防火サッシにおいては、外障子３の召合框（右縦框）３４の中空部３４ａ内に配置される補強材６は、補強材本体６１の各壁が外障子３の召合框３４の室外側に配置されているので、外焼きに対する外障子３の耐火性が向上するとともに、ピース部材６２により召合框３４の室内側壁に固定されることで、外障子３の召合框３４における比較的火炎に晒されない部位によって補強材が固定されることとなる。
特に、召合框３４のクレセント受け８２よりも上方位置、好ましくはクレセント受け８２の近傍上方位置と召合框３４の上端付近にて補強材６が召合框３４の室内側壁に固定されることで、熱によって大きく変形する補強材６の上方部位での変形が召合框３４によって抑制され、外障子３の形状を保ちながら召合框３４と内障子２の召合框２３との乖離を抑制することができる。 As described above, in the fire protection sash of the present embodiment, the reinforcing member 6 disposed in the hollow portion 34a of the summoning cage (right vertical rod) 34 of the external shoji 3 has the walls of the reinforcing material body 61 outside. Since the shoji 3 is arranged on the outside of the sump 34 of the shoji 3, the fire resistance of the shoji 3 against the outside baking is improved and the piece member 62 is fixed to the indoor side wall of the summon 34 so that the outside The reinforcing material is fixed by a portion of the summoning cage 34 of the shoji 3 that is relatively unexposed to the flame.
In particular, the reinforcing member 6 is fixed to the indoor side wall of the summon bowl 34 at a position above the crescent receiver 82 of the summit bowl 34, preferably at a position near the crescent receptacle 82 and near the upper end of the summit bowl 34. Thus, deformation at the upper portion of the reinforcing material 6 that is greatly deformed by heat is suppressed by the summoning cage 34, and the difference between the summoning cage 34 and the summing cage 23 of the inner hand child 2 is maintained while maintaining the shape of the outer shoji 3. Can be suppressed.

また、補強材本体６１の内周側側壁部６１２が外障子３の召合框３４のパネル間口３４ｂに配置されたパネル外れ止め部材７３４に連結固定されることで、召合框３４と補強材６とパネル体２５とを一体化しながら内周側側壁部６１２と召合框３４に固定されるピース部材６２とは連結されていないので、パネル体２５の熱による変形に対して略Ｕ字状の補強材本体６１が撓むことでパネル体２５の変形を吸収することができ、パネル体２５の破損や落下を遅らせることができる。 Further, the inner peripheral side wall portion 612 of the reinforcing material main body 61 is connected and fixed to the panel detachment preventing member 734 disposed in the panel opening 34b of the summing rod 34 of the shoji 3 so that the summing rod 34 and the reinforcing material are connected. 6 and the panel body 25 are integrated, and the inner peripheral side wall 612 and the piece member 62 fixed to the summing bar 34 are not connected to each other, so that the panel body 25 is substantially U-shaped against deformation due to heat. The deformation of the panel body 25 can be absorbed by bending the reinforcing material main body 61, and the breakage and dropping of the panel body 25 can be delayed.

なお、補強材６のピース部材６２の形状は、断面略Ｗ字状に限定されるものではなく、補強材本体６１を召合框３４の室内側壁に連結することができるものであれば、断面略Ｌ字状等どのような形状であってもよい。
また、本発明の防火サッシの補強材を配置する召合框は外障子の召合框に限定されるものではなく、内障子の召合框内に配置してもよい。すなわち内障子２の召合框２３に配置されている補強材９２３を補強材本体とピース部材とからなる補強材として構成し、ピース部材をクレセント錠の取付位置よりも上方位置で召合框の室外側面に固定して補強材を召合框の室外側面に連結してもよい。
それによって内焼き（室内側の火災時）に対して内障子の召合框における比較的火炎に晒されない部位によって補強材が固定されることとなるので、内障子の召合框の上部が室内側に変形して、外障子の召合框との間に隙間が生じることを抑制できる。 In addition, the shape of the piece member 62 of the reinforcing member 6 is not limited to a substantially W-shaped cross section, and any cross section can be used as long as the reinforcing member main body 61 can be connected to the indoor side wall of the summit bowl 34. Any shape such as a substantially L-shape may be used.
Moreover, the summon cage which arrange | positions the reinforcing material of the fire protection sash of this invention is not limited to the summon of a shoji screen, You may arrange | position in the summon cage of a shoji screen. In other words, the reinforcing material 923 arranged on the summing cage 23 of the inner shoji 2 is configured as a reinforcing material composed of the reinforcing material body and the piece member, and the piece member is located above the mounting position of the crescent lock. The reinforcing material may be connected to the outdoor side surface of the summon bowl fixed to the outdoor side surface.
As a result, the reinforcement is fixed by the part that is not exposed to the flame in the sumo shoji summon bowl for internal firing (in the event of a fire inside the room). It can be deformed inward to prevent a gap from being formed with the shoji of the shoji.

１：枠体
１１：上枠
１２：下枠
１３：左縦枠
１４：右縦枠
２：内障子
３：外障子
３４：召合框
３４ａ：中空部
３４ｂ：パネル間口
６：補強材
６１：補強材本体
６１１：底壁部
６１２：内周側側壁部
６１２ｂ：ネジ孔
６１２ｃ，ｄ：凹部
６１２ｅ：調節孔
６１３：外周側側壁部
６１３ａ：ネジ孔
６１３ｂ：切欠き部
６２：ピース部材
６２１：連結片
６２２：固定片 1: Frame 11: Upper frame 12: Lower frame 13: Left vertical frame 14: Right vertical frame 2: Inner shoji 3: External shoji 34: Summon 34a: Hollow part 34b: Panel front 6: Reinforcement material 61: Reinforcement Material body 611: Bottom wall 612: Inner peripheral side wall 612b: Screw hole 612c, d: Recess 612e: Adjustment hole 613: Outer peripheral side wall 613a: Screw hole 613b: Notch 62: Piece member 621: Connection piece 622: fixed piece

Claims

建物開口部に配置される枠体と、枠体内に摺動開閉自在に配置される障子と、障子の召合框内に配置される補強材とを備え、
補強材は、断面略Ｕ字状の長尺部材からなり障子の召合框の中空部内に長手方向に沿って略全長に配置される補強材本体と、補強材本体に固定されるピース部材を備えており、
補強材本体は、断面略Ｕ字状の開口を室内側に向けて配置されて内周側側壁部が召合框の内周側壁に固定されるとともに、ピース部材が召合框のクレセント受けの取付位置よりも上方位置で召合框の室内側壁に固定されることで召合框の室内側壁に連結される
ことを特徴とする建具。 A frame disposed in the opening of the building, a shoji that is slidably opened and closed in the frame, and a reinforcing material that is disposed in the shoji summon cage,
The reinforcing material is composed of a long member having a substantially U-shaped cross section. The reinforcing material main body is arranged in the hollow portion of the shoji sumo bowl along the longitudinal direction, and the piece member fixed to the reinforcing material main body. Has
The reinforcement main body is arranged with the opening having a substantially U-shaped cross section facing the indoor side, the inner peripheral side wall portion is fixed to the inner peripheral side wall of the summon bowl, and the piece member is the crescent receiver of the summit bowl. A joinery characterized in that it is connected to the indoor side wall of the summit bowl by being fixed to the indoor side wall of the summit bowl above the attachment position.