JP6671523B2 - Joinery - Google Patents

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JP6671523B2
JP6671523B2 JP2019024959A JP2019024959A JP6671523B2 JP 6671523 B2 JP6671523 B2 JP 6671523B2 JP 2019024959 A JP2019024959 A JP 2019024959A JP 2019024959 A JP2019024959 A JP 2019024959A JP 6671523 B2 JP6671523 B2 JP 6671523B2
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refractory material
frame
fire
peripheral side
shoji
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JP2019090320A (en
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一儀 山口
一儀 山口
孫史 永田
孫史 永田
充男 須加野
充男 須加野
壮吉 鎌仲
壮吉 鎌仲
隆行 間戸
隆行 間戸
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Sankyo Tateyama Inc
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Sankyo Tateyama Inc
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Priority to JP2019224958A priority patent/JP6968862B2/en
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Description

本発明は、防火性に優れた建具に関する。   The present invention relates to a fitting having excellent fire protection.

内倒し窓のように、障子が室内側又は室外側に開く窓では、枠と障子の間にアーム等が介在するため、枠と障子の間の隙間が大きくなっている。そのため、火災時にはその隙間を火炎や煙等が貫通し、延焼に繋がるおそれがある。
特許文献1には、戸の外周に熱に反応して発泡する発泡材を設けておき、火災時にその発泡材が発泡して枠と戸の間を塞ぐことで、火炎や煙等が侵入するのを防ぐことが開示されている。しかし、前述の内倒し窓等のように、枠と障子の隙間が大きい場合には、発泡材が発泡する途中で室外側や室内側に曲がったり、脱落したりするため、枠と障子の間の隙間をきっちりと塞ぐことが困難であった。
In a window, such as an inner window, in which a shoji opens indoors or outdoors, an arm or the like is interposed between the frame and the shoji, so that a gap between the frame and the shoji increases. Therefore, in the event of a fire, flames, smoke, and the like may penetrate the gap, leading to fire spread.
In Patent Literature 1, a foam material that reacts with heat and foams is provided on the outer periphery of a door, and the foam material foams and closes a gap between the frame and the door at the time of a fire, so that a flame or smoke enters. It is disclosed to prevent this. However, if the gap between the frame and the shoji is large, as in the case of the above-mentioned window, the bend may fall or fall to the outside or inside of the room while the foam material is foaming. It was difficult to completely close the gap.

特開平8−303133号公報JP-A-8-303133

本発明は以上に述べた実情に鑑み、枠と障子との間の隙間が大きい場合でも、火災時にその隙間を確実に塞ぐことのできる建具の提供を目的とする。   The present invention has been made in view of the above-described circumstances, and has as its object to provide a fitting that can reliably close a gap between a frame and a shoji when a fire occurs even when the gap is large.

上記の課題を達成するために請求項1記載の発明による建具は、枠と、障子とを備え、枠または障子の一方の見込面に、火災の熱で発泡する耐火材を設けてあると共に、耐火材の見込み方向に隣接する位置に、枠または障子の他方の見込面に向けて突出して耐火材の発泡する方向を規制するガイドとなる突壁を有し、突壁は、両見込面の間の隙間の半分程度まで突出しており、耐火材が他方の見込面に向けて密に発泡することを特徴とする。 In order to achieve the above object, a fitting according to the first aspect of the present invention includes a frame and a shoji, and one of the prospective surfaces of the frame or the shoji is provided with a refractory foamed by the heat of a fire, At a position adjacent to the anticipated direction of the refractory material, a protruding wall that protrudes toward the other prospective surface of the frame or the shoji and serves as a guide that regulates the direction in which the refractory material foams is provided. It is characterized in that it protrudes to about half of the gap therebetween, and the refractory material foams densely toward the other prospective surface.

請求項1記載の発明による建具は、枠または障子の一方の見込面に、火災の熱で発泡する耐火材を設けてあると共に、耐火材の見込み方向に隣接する位置に、枠または障子の他方の見込面に向けて突出して耐火材の発泡する方向を規制するガイドとなる突壁を有し、突壁は、両見込面の間の隙間の半分程度まで突出しており、耐火材が他方の見込面に向けて密に発泡するため、枠と障子との間の隙間が大きい場合でも、火災時にその隙間を発泡した耐火材で確実に塞ぐことができる。また、突壁を有することで、発泡した耐火材による耐火層を維持できる。 In the fitting according to the first aspect of the present invention, a fireproof material which foams by the heat of a fire is provided on one prospective surface of the frame or the shoji, and the other of the frame or the shoji is located at a position adjacent to the expected direction of the fireproof material. A projection that protrudes toward the prospective surface of the refractory material and serves as a guide that regulates the direction in which the refractory foams.The projecting wall protrudes to about half of the gap between the prospective surfaces, and the refractory material is the other. Since the foam is densely foamed toward the prospect surface, even if the gap between the frame and the shoji is large, the gap can be reliably closed by the foamed refractory material in the event of a fire. In addition, by having the protruding wall, a fire-resistant layer made of a foamed fire-resistant material can be maintained.

本発明の一実施形態に係る建具の横断面図である。It is a cross section of a fitting concerning one embodiment of the present invention. 同建具の縦断面図である。It is a longitudinal cross-sectional view of the fitting. 同建具の室内側正面図である。It is a room front view of the fitting. 同建具の障子を開けた状態の縦断面図である。It is a longitudinal cross-sectional view in the state where the shoji of the fitting was opened. 火災時における竪枠と竪框間の隙間部の状態を示す横断面図である。It is a cross-sectional view which shows the state of the clearance gap between a vertical frame and a vertical frame at the time of a fire.

以下、本発明の実施の形態を図面に基づいて説明する。図1〜4は、本発明に係る建具の一実施形態を示している。この建具は、内倒しサッシであり、躯体開口部に取付けられる枠1と、枠1に内倒し式に開閉自在に取付けた障子2とを備えている。
枠1は、アルミニウム合金の押出形材よりなる上枠5、下枠6及び左右の竪枠7,7を枠組みして構成されている。
障子2は、アルミニウム合金の押出形材よりなる上框8、下框9及び左右の竪框10,10を框組みし、その内側に複層ガラス11を取付けて構成されている。複層ガラス11の室外側のガラス11aは、網入りの強化ガラスになっている。障子2は、図2に示すように、下框9の室内側下部に設けたヒンジ部12が下枠6に取付けたヒンジ金具13に回動自在に連結されている。また障子2の上框8の室内側面にはラッチ14が取付けてあり、ラッチ14が上枠5に取付けたラッチ受け15と係合することで、閉鎖した障子2がロックされる。
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 4 show one embodiment of a fitting according to the present invention. This fitting is an inward sash, and includes a frame 1 attached to the opening of the skeleton, and a shoji 2 attached to the frame 1 so as to be openable and closable.
The frame 1 includes an upper frame 5, a lower frame 6, and left and right vertical frames 7, 7 made of extruded aluminum alloy.
The shoji 2 is constructed by assembling an upper frame 8, a lower frame 9, and left and right vertical frames 10, 10 made of an extruded material of an aluminum alloy, and mounting a double glazing 11 inside the frame. The glass 11a on the outdoor side of the multi-layer glass 11 is a tempered glass with a net. As shown in FIG. 2, the sliding door 2 has a hinge portion 12 provided at a lower portion of the lower frame 9 on the indoor side, and is rotatably connected to a hinge fitting 13 attached to the lower frame 6. A latch 14 is attached to the indoor side surface of the upper frame 8 of the shoji 2. The latch 14 is engaged with a latch receiver 15 attached to the upper frame 5, so that the closed shoji 2 is locked.

図1,4に示すように、竪枠7の内周側見込み面7aと竪框10の外周側見込み面10a間には、アーム16が取付けてあり、該アーム16により障子2の開く範囲を規制している。このアーム16を取付けるために、竪枠7の内周側見込み面7aと竪框10の外周側見込み面10a間には27mmの幅の隙間17が設けられている。
竪枠7の内周側見込み面7aの室外側端部には、図1に示すように、タイト材ホルダー18が内周側に突出して設けられ、タイト材ホルダー18に取付けたタイト材19が、竪框10の外周側見込み面10aに当接している。また、竪枠7の内周側見込み面7aの室内外方向中間部やや室内側寄りの位置にもタイト材ホルダー20が内周側に突出して設けられ、このタイト材ホルダー20に取付けたタイト材21が、竪框10の室内側端部に外周側に張り出して設けたフィン22の室外側面に当接している。室内外方向中間部のタイト材ホルダー20の根元部には、後述する耐火材ホルダー23が係止する溝24が室外側に向けて形成してある。
As shown in FIGS. 1 and 4, an arm 16 is attached between the inner peripheral side prospective surface 7 a of the vertical frame 7 and the outer peripheral side prospective surface 10 a of the vertical frame 10, and the arm 16 controls the opening range of the shoji 2. Regulating. In order to mount the arm 16, a gap 17 having a width of 27 mm is provided between the inner peripheral side expected surface 7 a of the vertical frame 7 and the outer peripheral side expected surface 10 a of the vertical frame 10.
As shown in FIG. 1, a tight material holder 18 is provided at the outdoor end of the inner peripheral side expected surface 7 a of the vertical frame 7, and a tight material 19 attached to the tight material holder 18 is provided. , And is in contact with the outer peripheral side expected surface 10a of the vertical frame 10. A tight material holder 20 is also provided on the inner peripheral side expected surface 7a of the vertical frame 7 at an intermediate portion in the indoor / outdoor direction and slightly closer to the indoor side to protrude toward the inner peripheral side. 21 is in contact with the outdoor side surface of a fin 22 provided on the indoor side end of the vertical frame 10 so as to project outward. A groove 24 for locking a refractory material holder 23 to be described later is formed toward the outside of the room at the root of the tight material holder 20 in the middle part in the indoor / outdoor direction.

竪枠7の内周側見込み面7aには、図1,2,4に示すように、火災時に竪枠7と竪框10間の隙間を塞ぐ耐火材3を固定設置するための耐火材ホルダー23が、室内寄りのタイト材ホルダー20の室外側に沿うようにして取付けてある。耐火材ホルダー23は、アルミニウム合金の押出形材よりなる長尺材であり、図1に示すように、内周側が開口したリップ溝形の耐火材保持部25と、耐火材保持部25の室外側の壁より連続して内周側に向けて突出する突壁4とが一体に形成されている。突壁4は、竪枠7の内周側見込み面7aと竪框10の外周側見込み面10a間の27mmの隙間17の半分程度まで突出しており、アーム16と干渉しないように設けてある。耐火材ホルダー23は、図2,4に示すように、アーム16と干渉する部分に切り欠き26が設けてある。
耐火材保持部25には、火災の熱に反応して発泡・膨張する耐火材3が保持してある。この耐火材は、プラスチック技術を活用した有機系耐火材であり、通常の状態では薄いシート状で、200℃以上に加熱されると厚さ方向に5〜40倍に膨張し、断熱層を形成する。火災時に消失することがなく、有害ガスが発生することもない。かかる耐火材3としては、例えば積水化学工業株式会社製の商品名「フィブロック」を用いることができる。耐火材3は、耐火材保持部25に挿入した後、耐火材保持部25の内周側のリップ部25aをかしめることで、耐火材保持部25から抜け落ちたりしないように保持される。そうして耐火材3を装着した耐火材ホルダー23は、図1に示すように、竪枠7の内周側見込み面7aにネジ27で固定されている。
As shown in FIGS. 1, 2, and 4, a fireproof material holder for fixing and installing a fireproof material 3 that closes a gap between the vertical frame 7 and the vertical frame 10 at the time of fire, as shown in FIGS. 23 is attached along the outside of the tight material holder 20 near the room. The refractory material holder 23 is a long material made of an extruded aluminum alloy material. As shown in FIG. 1, a lip groove-shaped refractory material holding portion 25 having an inner peripheral side opened, and a chamber of the refractory material holding portion 25 are provided. A protruding wall 4 that protrudes from the outer wall continuously toward the inner peripheral side is integrally formed. The protruding wall 4 projects up to about half of a 27 mm gap 17 between the inner peripheral side expected surface 7 a of the vertical frame 7 and the outer peripheral side expected surface 10 a of the vertical frame 10, and is provided so as not to interfere with the arm 16. As shown in FIGS. 2 and 4, the refractory material holder 23 has a notch 26 at a portion that interferes with the arm 16.
The refractory material holding portion 25 holds the refractory material 3 which foams and expands in response to heat of a fire. This refractory material is an organic refractory material utilizing plastic technology. It is a thin sheet under normal conditions and expands 5 to 40 times in the thickness direction when heated to 200 ° C. or more to form a heat insulating layer. I do. They do not disappear in the event of a fire and no harmful gases are generated. As the refractory material 3, for example, Sekisui Chemical Co., Ltd. product name “Fiblock” can be used. After the refractory material 3 is inserted into the refractory material holding portion 25, the lip portion 25 a on the inner peripheral side of the refractory material holding portion 25 is crimped, so that the refractory material 3 is held from falling off the refractory material holding portion 25. The refractory material holder 23 to which the refractory material 3 is attached is fixed to the inner peripheral side expected surface 7a of the vertical frame 7 with screws 27 as shown in FIG.

上枠5は、図2に示すように、内周側見込み面5aの室外側端部に垂下片28を有し、その室内側に沿うようにして上枠5の内周側面5aに、火災の熱に反応して発泡・膨張する耐火材29が取付けてある。この耐火材29は、リップ溝形の耐火材ホルダー30に保持されており、耐火材ホルダー30は上枠5にネジ31で固定してある。また、上枠5の内周側見込み面5aには、ステンレス製の補強板35が耐火材ホルダー30とネジ31で共締めして取付けてある。
上框8の外周側見込み面8aには、ステンレス製の補強板32がネジ33で取付けてあり、その室内側の端部に火災の熱に反応して発泡・膨張する耐火材34が取付けてある。この耐火材34は、上枠5に設けられたタイト材ホルダー36に対向して配置されている。さらに、その上枠5のタイト材ホルダー36の室内側面にも火災の熱に反応して発泡・膨張する耐火材37が取付けてあり、この耐火材37はラッチ14とラッチ受け15との係合部に対向して配置されている。上框8の中空部内には、ステンレス製の補強材38が設けてある。
As shown in FIG. 2, the upper frame 5 has a hanging piece 28 at the outdoor end of the inner peripheral side expected surface 5 a, and a fire is generated on the inner peripheral side surface 5 a of the upper frame 5 along the indoor side. A refractory material 29 which foams and expands in response to the heat of the refractory is mounted. The refractory material 29 is held by a lip groove-shaped refractory material holder 30. The refractory material holder 30 is fixed to the upper frame 5 with screws 31. A reinforcing plate 35 made of stainless steel is attached to the inner peripheral side expected surface 5 a of the upper frame 5 by fastening together with the refractory material holder 30 and the screw 31.
A reinforcing plate 32 made of stainless steel is attached to an outer peripheral side expected surface 8a of the upper frame 8 with a screw 33, and a refractory material 34 which foams and expands in response to heat of a fire is attached to an end on the indoor side. is there. The refractory material 34 is arranged to face a tight material holder 36 provided on the upper frame 5. Further, a fire-resistant material 37 that expands and expands in response to the heat of the fire is also attached to the indoor side surface of the tight material holder 36 of the upper frame 5, and this fire-resistant material 37 is engaged with the latch 14 and the latch receiver 15. It is arranged facing the part. A stainless steel reinforcing member 38 is provided in the hollow portion of the upper frame 8.

下枠6は、図2に示すように、L字形に立ち上がるタイト材ホルダー39を有し、その室外側面に火災の熱に反応して発泡・膨張する耐火材40を保持した耐火材ホルダー41がネジ42で取付けてある。この耐火材40は、下框9の室外側に外周側に張り出して形成されたフィン43と対向して配置されている。前記タイト材ホルダー39の内周側面にも、火災の熱に反応して発泡・膨張する耐火材44が設けてある。さらに、下枠6の中空部内にも、火災の熱に反応して発泡・膨張する耐火材45が設けてある。   As shown in FIG. 2, the lower frame 6 has a tight material holder 39 that rises in an L-shape, and a refractory material holder 41 holding a refractory material 40 that expands and expands in response to the heat of the fire on the outdoor surface thereof. It is attached with screws 42. The refractory material 40 is disposed facing the fins 43 formed on the outside of the lower frame 9 on the outer side of the lower frame 9. A refractory material 44 which foams and expands in response to the heat of the fire is also provided on the inner peripheral side surface of the tight material holder 39. Further, a refractory material 45 which foams and expands in response to the heat of the fire is also provided in the hollow portion of the lower frame 6.

障子2の框8,9,10は、図2に示すように、内周側が開口したパネル保持溝46を有し、パネル保持溝46内の室外側の壁に、火災の熱に反応して発泡・膨張する耐火材47が取付けてある。下框9のパネル保持溝46内には、セッティングブロック48が配置されており、このセッティングブロック48は火災の熱で溶けにくい金属製のものとなっている。   As shown in FIG. 2, the frames 8, 9, and 10 of the shoji 2 have a panel holding groove 46 whose inner peripheral side is open. A foaming and expanding refractory material 47 is attached. A setting block 48 is disposed in the panel holding groove 46 of the lower frame 9, and the setting block 48 is made of a metal that is not easily melted by heat of a fire.

図5は、火災時における竪枠7と竪框10の隙間部の状態を示している。同図に示すように、火災が発生すると竪枠7の内周側見込み面7aに設けた耐火材3が内周側に向けて発泡・膨張し、竪枠7の内周側見込み面7aと竪框10の外周側見込み面10a間の隙間17が発泡した耐火材3により塞がれる。これにより、竪枠7と竪框10の隙間17から火炎や煙等が貫通するのを阻止できる。耐火材3の室外側に隣接して突壁4が設けてあることで、突壁4が耐火材3の発泡する方向を規制するガイドとなり、広い隙間17であってもその隙間17を発泡した耐火材3で確実に塞ぐことができる。また、突壁4を有することで、耐火材3を密に発泡させることができ、発泡した耐火材3による耐火層を維持できる。また、突壁4自体が炎や煙等を遮る効果もある。突壁4は、図4に示すように、アーム16を竪枠7に取付けているアーム取付具52と干渉する部分が切欠かれているが、アーム取付具52は障子2側(内周側)に向けて突出するハット型断面になっており、このアーム取付金具52が発泡した耐火材3の脱落を防ぐので、突壁4が切欠かれた範囲も竪枠7と竪框10の間の隙間17が発泡した耐火材3により確実に塞がれる。
耐火材3を両面テープや接着剤等で竪枠7の内周側見込み面7aに直接取付けた場合には、長時間風雨にさらされるうちに剥がれ落ちたりするおそれがあるが、本実施形態では耐火材3を耐火材ホルダー23に保持した上で竪枠7にネジ27で固定したので、耐火材3が剥がれ落ちるおそれがない。
FIG. 5 shows a state of a gap between the vertical frame 7 and the vertical frame 10 at the time of fire. As shown in the figure, when a fire occurs, the refractory material 3 provided on the inner peripheral side prospective surface 7a of the vertical frame 7 foams and expands toward the inner peripheral side, and the inner peripheral side prospective surface 7a of the vertical frame 7 The gap 17 between the prospective surface 10 a on the outer peripheral side of the vertical frame 10 is closed by the foamed refractory material 3. Thereby, it is possible to prevent the flame and smoke from penetrating from the gap 17 between the vertical frame 7 and the vertical frame 10. Since the projecting wall 4 is provided adjacent to the outdoor side of the refractory material 3, the projecting wall 4 serves as a guide for regulating the direction in which the refractory material 3 foams. It can be reliably closed with the refractory material 3. Further, by having the protruding wall 4, the refractory material 3 can be densely foamed, and a fire-resistant layer made of the foamed refractory material 3 can be maintained. Further, the projecting wall 4 itself has an effect of blocking fire, smoke, and the like. As shown in FIG. 4, the protruding wall 4 is cut off at a portion that interferes with an arm attachment 52 that attaches the arm 16 to the vertical frame 7, but the arm attachment 52 is on the side of the shoji 2 (the inner peripheral side). The arm mounting bracket 52 prevents the foamed refractory material 3 from falling off, so that the area where the projecting wall 4 is cut off is also a gap between the vertical frame 7 and the vertical frame 10. 17 is reliably closed by the foamed refractory material 3.
When the refractory material 3 is directly attached to the inner peripheral side expected surface 7a of the vertical frame 7 with a double-sided tape or an adhesive, there is a possibility that the refractory material 3 may be peeled off while being exposed to wind and rain for a long time. Since the refractory material 3 is held in the refractory material holder 23 and fixed to the vertical frame 7 with the screws 27, there is no possibility that the refractory material 3 will peel off.

また火災時には、上枠5の内周側見込み面5aに取付けた耐火材29が内周側に向けて、上框8の外周側見込み面8aに取付けた耐火材34が外周側に向けてそれぞれ発泡・膨張して、上枠5の内周側見込み面5aと上框8の外周側見込み面8a間の隙間が塞がれる。両耐火材29,34は、上枠5の垂下片28と上框8の立上げ片49の見込み方向に隣接して配置されているため、先に述べた突壁4と同様に耐火材29,34の発泡する方向を規制し、耐火材29,34が曲がったり脱落したりするのを防ぐことができる。また、上枠5のタイト材ホルダー36の室内側面に取付けた耐火材37が室内側に向けて発泡し、障子2の周囲と上枠5間の隙間を塞ぐ。室外側で火災が起きたときには、障子2は室外側に膨らむように変形し、それに伴って上框8の立上げ片49が上枠5のタイト材50から離れようとする。本建具は上記のように耐火材29,34,37が設けてあることで、室外側から室内側への火の侵入がまず耐火材29により防がれ、耐火材29を突破され且つタイト材50が上框8から離れたとしても、耐火材34により火の侵入を防ぐことができる。耐火材34は、タイト材50を保護する働きもある。さらに、耐火材34が突破され且つ上框8が室内側に変位したとしても、室内側に向けて発泡する耐火材37により火の侵入が防がれる。以上の作用により、上枠5と上框8の間を火が貫通するのを確実に防ぐことができる。
さらに、下枠6のタイト材ホルダー39の室外側面に取付けた耐火材40が室外側に向けて発泡し、発泡した耐火材40が下框9にパネル保持溝46内の水を抜くために下框9の長手方向両端部に形成された水抜き孔を塞ぎ、水抜き孔から火炎や煙等が入るのを阻止する。下框9はヒンジ部12で下枠6と連結されているが、ヒンジ部12は長手方向の両端部が竪框10と干渉しないように切欠かれており、また下枠のタイト材51は長手方向の両端部が竪枠7と干渉しないように切欠かれているので、そのままでは下枠6の両端部における下框9との隙間から火が貫通するおそれがある。本建具では、下枠6のタイト材ホルダー39の内周側面に取付けた耐火材44が内周側に向けて発泡し、発泡した耐火材44が下枠6と下框9間の隙間を塞ぐことで、下枠6の両端部における下框9との隙間から火が貫通するのを防ぐことができる。耐火材44は、タイト材51を保護する働きもある。耐火材40,44は、下枠6の長手方向の全長に設けてもよいが、下枠6の長手方向の両端部だけに設けてあってもよい。
さらに、下枠6の中空部内に設けた耐火材45が発泡して下枠6の排水孔を塞ぎ、排水孔から火炎や煙等が入るのを阻止する。また、框8,9,10のパネル保持溝46内に設けた耐火材47が発泡してパネル保持溝46内の隙間を塞ぐことで、框8,9,10と複層ガラス11との間から火炎や煙等が貫通するのを阻止できる。
In the event of a fire, the refractory material 29 attached to the inner peripheral side prospective surface 5a of the upper frame 5 faces the inner peripheral side, and the refractory material 34 attached to the outer peripheral side prospective surface 8a of the upper frame 8 faces the outer peripheral side. Due to foaming and expansion, the gap between the inner peripheral side expected surface 5a of the upper frame 5 and the outer peripheral side expected surface 8a of the upper frame 8 is closed. The two refractory materials 29 and 34 are arranged adjacent to the hanging piece 28 of the upper frame 5 and the rising piece 49 of the upper frame 8 in the expected direction. , 34 can be restricted to prevent the refractory materials 29, 34 from bending or falling off. Also, the refractory material 37 attached to the indoor side surface of the tight material holder 36 of the upper frame 5 foams toward the indoor side, and closes the gap between the periphery of the shoji 2 and the upper frame 5. When a fire occurs outside the room, the shoji 2 deforms so as to expand toward the outside of the room, and the rising piece 49 of the upper frame 8 tends to separate from the tight material 50 of the upper frame 5 accordingly. Since this fitting is provided with the refractory materials 29, 34, and 37 as described above, the intrusion of fire from the outside to the interior of the room is first prevented by the refractory material 29, the refractory material 29 is broken through, and the tight material is used. Even if the 50 is separated from the upper frame 8, the fireproof material 34 can prevent the intrusion of fire. The refractory material 34 also has a function of protecting the tight material 50. Further, even if the refractory material 34 is broken through and the upper frame 8 is displaced to the indoor side, the intrusion of fire is prevented by the refractory material 37 foaming toward the indoor side. With the above operation, it is possible to reliably prevent fire from penetrating between the upper frame 5 and the upper frame 8.
Further, the refractory material 40 attached to the outdoor side surface of the tight material holder 39 of the lower frame 6 foams toward the outdoor side, and the foamed refractory material 40 lowers the lower frame 9 to drain water in the panel holding groove 46. The drain holes formed at both ends in the longitudinal direction of the frame 9 are closed to prevent flames, smoke, and the like from entering the drain holes. The lower frame 9 is connected to the lower frame 6 by a hinge 12, but the hinge 12 is cut out so that both ends in the longitudinal direction do not interfere with the vertical frame 10, and the tight material 51 of the lower frame is elongated. Since both ends in the direction are cut out so as not to interfere with the vertical frame 7, there is a possibility that a fire may pass through a gap between the lower frame 6 and the lower frame 9 at both ends of the lower frame 6 as it is. In this fitting, the refractory material 44 attached to the inner peripheral side of the tight material holder 39 of the lower frame 6 foams toward the inner peripheral side, and the foamed refractory material 44 closes the gap between the lower frame 6 and the lower frame 9. Thus, it is possible to prevent fire from penetrating through gaps between the lower frame 6 and the lower frame 9 at both ends. The refractory material 44 also has a function of protecting the tight material 51. The refractory materials 40 and 44 may be provided over the entire length of the lower frame 6 in the longitudinal direction, or may be provided only at both longitudinal end portions of the lower frame 6.
Further, the refractory material 45 provided in the hollow portion of the lower frame 6 foams and closes the drain hole of the lower frame 6, thereby preventing the entrance of flame, smoke, and the like from the drain hole. In addition, the refractory material 47 provided in the panel holding grooves 46 of the frames 8, 9, 10 foams to close the gaps in the panel holding grooves 46, so that the gap between the frames 8, 9, 10 and the multi-layer glass 11 can be reduced. From this, it is possible to prevent flames and smoke from penetrating.

以上に述べたように本建具は、火災時に枠1と障子2の隙間、障子2の框8,9,10と複層ガラス11との隙間、排水孔等が発泡した耐火材3,29,34,37,40,44,45,47により塞がれるため、火炎や煙等が室内外を貫通するのを阻止し、延焼を防止することができる。特に、耐火材3の見込み方向に隣接する位置に内周側に向けて突出する突壁4を設けたことで、耐火材3の発泡する方向を突壁4が規制するため、アーム16が介在する竪枠7と竪框10間の広い隙間17であっても、発泡した耐火材3でその隙間17をきっちり塞ぐことができる。   As described above, in the case of a fire, the present fitting has a gap between the frame 1 and the shoji 2, a gap between the frames 8, 9, 10 of the shoji 2 and the double-glazed glass 11, and a fireproof material 3, 29, in which drain holes and the like are foamed. Since it is closed by 34, 37, 40, 44, 45, and 47, it is possible to prevent flames and smoke from penetrating inside and outside the room, thereby preventing fire spread. In particular, since the protruding wall 4 protruding toward the inner peripheral side is provided at a position adjacent to the expected direction of the refractory material 3, the protruding wall 4 regulates the direction in which the refractory material 3 foams. Even the wide gap 17 between the vertical frame 7 and the vertical frame 10 can be completely closed by the foamed refractory material 3.

本発明は以上に述べた実施形態に限定されない。耐火材に隣接して設けられる突壁は、耐火材ホルダーと別体で形成することもできる。耐火材は、障子の外周側見込み面に設けることもでき、その場合には突壁は外周側に向けて突出して設ける。また耐火材は、枠の内周側見込み面又は障子の外周側見込み面に両面テープ等で直接取付けることもできる。突壁は、耐火材の室内側に隣接して設けることもできる。障子の開き方は任意であり、例えば開き窓、すべり出し窓等、あらゆる窓種に適用することができる。   The invention is not limited to the embodiments described above. The projecting wall provided adjacent to the refractory material may be formed separately from the refractory material holder. The refractory material can also be provided on the expected surface on the outer peripheral side of the shoji, in which case the projecting wall is provided so as to protrude toward the outer peripheral side. Further, the refractory material can be directly attached to the inner peripheral side expected surface of the frame or the outer peripheral side expected surface of the shoji with a double-sided tape or the like. The projecting wall may be provided adjacent to the interior side of the refractory material. The way of opening the shoji is arbitrary, and it can be applied to all types of windows such as, for example, a casement window and a sliding window.

1 枠
2 障子
3 耐火材
4 突壁
7a 竪枠の内周側見込み面(枠の内周側見込み面)
10a 竪框の外周側見込み面(障子の外周側見込み面)
DESCRIPTION OF SYMBOLS 1 Frame 2 Shoji screen 3 Refractory material 4 Gutter wall 7a Plane of inner circumference side of vertical frame
10a Perspective surface on the outer peripheral side of the vertical frame (probable surface on the outer peripheral side of the shoji)

Claims (1)

枠と、障子とを備え、枠または障子の一方の見込面に、火災の熱で発泡する耐火材を設けてあると共に、耐火材の見込み方向に隣接する位置に、枠または障子の他方の見込面に向けて突出して耐火材の発泡する方向を規制するガイドとなる突壁を有し、突壁は、両見込面の間の隙間の半分程度まで突出しており、耐火材が他方の見込面に向けて密に発泡することを特徴とする建具。 A frame and a shoji are provided, and a refractory material that foams due to the heat of the fire is provided on one of the prospective surfaces of the frame or the shoji, and the other side of the frame or the shoji is positioned adjacent to the expected direction of the refractory material. A protruding wall that protrudes toward the surface and serves as a guide that regulates the direction in which the refractory foams.The protruding wall protrudes to about half of the gap between the two prospective surfaces, and the refractory material is the other prospective surface. A fitting characterized by being densely foamed toward.
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