JP2001079105A - Fire-and smoke-proof shutter sheet - Google Patents

Fire-and smoke-proof shutter sheet

Info

Publication number
JP2001079105A
JP2001079105A JP26000399A JP26000399A JP2001079105A JP 2001079105 A JP2001079105 A JP 2001079105A JP 26000399 A JP26000399 A JP 26000399A JP 26000399 A JP26000399 A JP 26000399A JP 2001079105 A JP2001079105 A JP 2001079105A
Authority
JP
Japan
Prior art keywords
fire
smoke
sheet
floor
fireproof
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP26000399A
Other languages
Japanese (ja)
Other versions
JP3638826B2 (en
Inventor
Isao Ogasawara
Hisafumi Onuki
Ryutaro Yokoyama
寿文 大貫
勲 小笠原
隆太郎 横山
Original Assignee
Nichias Corp
ニチアス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nichias Corp, ニチアス株式会社 filed Critical Nichias Corp
Priority to JP26000399A priority Critical patent/JP3638826B2/en
Publication of JP2001079105A publication Critical patent/JP2001079105A/en
Application granted granted Critical
Publication of JP3638826B2 publication Critical patent/JP3638826B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a fire-and smoke-proof shutter sheet which is arranged in a wide space, is easily installable in spite of long or large size and is capable of holding a shielding state from the wind pressure and high temperature by a fire and preventing a fire spread and the diffusion of smoke. SOLUTION: Plural flat bars 4 and 5 for weights are mounted to both sides at the floor surface side end of a refractory sheet 2 so as to be held by having prescribed spacings 6 and 7 in a longitudinal direction and at this time, the prescribed spacings 6 of the flat bar 4 on one flank and the prescribed spacings 7 of the flat bar 5 on the other flank are position to offset from each other. Further, the flat bars 4 and 5 are bored with long holes. The plural flat bars 4 and 5 are mounted to both sides at the floor surface side end of the refractory sheet 2 by fastenings which freely slide in the long holes. As a result, the fire and smoke shutter, which is easily installable, is made easier to resist the deformation by accompanying the wind pressure and temperature elevation by the fire, maintains the shielding state and is capable of preventing the fire spread and the diffusion of the smoke, is obtained.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】本発明は、天井や梁下に設置
した耐火シートに重りを付け、火災等の必要時重りによ
り耐火シートを垂下させ、建築構造物等の内部空間を遮
蔽し、火災の延焼や煙の拡散を防止する防火防煙シャッ
ターに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of attaching a weight to a fireproof sheet installed under a ceiling or a beam, hanging the fireproof sheet by a weight when necessary in the event of a fire, shielding an internal space of a building structure, etc. The present invention relates to a fireproof and smokeproof shutter for preventing the spread of fire and diffusion of smoke.
【0002】[0002]
【従来の技術】建築構造物等の内部で、火災時の煙や火
炎が拡散するのを防止する手段として、ガラスクロス等
の耐火シートを使用した防火防煙シャッターが知られて
いる。この防火防煙シャッター50の基本構造は、図8
に示すように、天井や梁下に重り51を付けた耐火シー
ト52を床面に垂下可能に設置し、火災等の必要時、例
えば、煙や所定温度以上の室温を検知したりあるいは手
動により、天井や梁下から耐火シート52を重り51に
より床面に垂下させ、建築構造物等の内部空間を遮蔽す
るものである。この耐火シート52の重り51には、更
に火災時に発生する風圧により耐火シート52のまくれ
上がりを防止している。
2. Description of the Related Art As means for preventing smoke or flame from being spread at the time of a fire inside a building structure or the like, a fireproof and smokeproof shutter using a fireproof sheet such as a glass cloth is known. The basic structure of the fire and smoke shutter 50 is shown in FIG.
As shown in the figure, a fireproof sheet 52 with a weight 51 attached to the ceiling or under a beam is installed so as to be able to hang down on the floor surface, and when a fire or the like is necessary, for example, smoke or a room temperature above a predetermined temperature is detected or manually. In addition, the fireproof sheet 52 is suspended from the ceiling or under the beam by the weight 51 on the floor surface to shield an internal space such as a building structure. The weight 51 of the refractory sheet 52 further prevents the refractory sheet 52 from being turned up by wind pressure generated during a fire.
【0003】この耐火シート52に取り付けられた重り
51は、通常1本ものの丸棒やフラットバーが用いられ
る。しかしながら、特開平9−203281号公報や特
開平10−33705号公報には分割した重りが開示さ
れている。前者には、耐火シートの下端を袋状にし、そ
の中に分割した丸棒の重りを挿入する記載がある。ま
た、後者の防火防煙シャッター50aは、逃げ遅れた人
が重り54と共に耐火シート52を持ち上げかい潜らな
くてもよいように、耐火シート52にスリット部53が
垂直に設けられ、スリット部53を押し広げ避難できる
ようになっているから、それに応じて重り54は分割さ
れている。すなわち、重り54は、図9に示すように、
耐火シート52のスリット部53に隣接する左右部分を
除いて、耐火シート52の下端にメインウエイトバー5
5、56が水平方向に取り付けられ、左右部分にサブウ
エイトバー57、58が取り付けられている。そして、
避難した後はサブウエイトバー57、58の重力によ
り、スリット部53が閉じ、以後火災の延焼や煙の拡散
を防止するというものである。
As the weight 51 attached to the refractory sheet 52, a single round bar or flat bar is usually used. However, Japanese Patent Application Laid-Open Nos. 9-203281 and 10-33705 disclose divided weights. In the former, there is a description that a lower end of a refractory sheet is made into a bag shape and a weight of a divided round bar is inserted therein. In addition, the latter fire prevention and smoke prevention shutter 50a is provided with a slit portion 53 in the fireproof sheet 52 vertically so that a person who has lately escaped does not have to lift and lift the fireproof sheet 52 together with the weight 54. The weight 54 is divided accordingly, since it can be pushed and evacuated. That is, as shown in FIG.
Except for the left and right portions adjacent to the slit 53 of the refractory sheet 52, the main weight bar 5 is provided at the lower end of the refractory sheet 52.
5 and 56 are attached in the horizontal direction, and sub weight bars 57 and 58 are attached to the left and right portions. And
After the evacuation, the gravity of the sub-weight bars 57 and 58 closes the slit 53 to prevent the spread of fire and the spread of smoke.
【0004】[0004]
【発明が解決しようとする課題】最近、図書館やホー
ル、倉庫や工場のような広い空間に配置される防火防煙
シャッターでは、図8及び図9における長さ寸法Lが1
0m以上に及ぶものが要求されることがある。このよう
な防火防煙シャッターでは、当然のことながら重りも長
いものが要求される。しかしながら、図8の防火防煙シ
ャッター50における重り51の構造では、設置場所に
搬入すること自体難しく、その取り付け工事も容易では
ない。更に、高温に晒されると重り51が変形して耐火
シート52と床面との間に隙間が生じ、火災の延焼や煙
の拡散を有効に防止することが困難になる。
Recently, in a fireproof and smokeproof shutter arranged in a large space such as a library, a hall, a warehouse or a factory, the length L in FIGS.
Those that extend beyond 0 m may be required. Naturally, such a fireproof and smokeproof shutter requires a long weight. However, with the structure of the weight 51 in the fireproof and smokeproof shutter 50 of FIG. 8, it is difficult to carry it to the installation location itself, and the installation work is not easy. Further, when exposed to a high temperature, the weight 51 is deformed and a gap is formed between the refractory sheet 52 and the floor surface, making it difficult to effectively prevent fire spread and smoke diffusion.
【0005】前述の公報例では、重りが分割されている
から取り付け工事は容易となるものの、火災時の風圧に
より分割部分が折れ曲がるように変形して、分割部分や
耐火シートの両端に隙間が生じる。従って、火災の延焼
や煙の拡散を有効に防止することは困難である。
[0005] In the above-mentioned publication, although the weight is divided, the installation work becomes easy. However, the divided part is deformed so as to be bent by wind pressure at the time of fire, and a gap is formed at both ends of the divided part and the fireproof sheet. . Therefore, it is difficult to effectively prevent the spread of fire and the spread of smoke.
【0006】従って、本発明の目的は、広い空間に配置
される長さ寸法の大きいものであっても容易に設置で
き、しかも火災による風圧や温度上昇に伴う遮蔽状態の
保持力低下を防止して、火災の延焼や煙の拡散を有効に
防止できる防火防煙シャッターを提供することにある。
Accordingly, it is an object of the present invention to easily install even a large-sized one arranged in a large space, and to prevent a decrease in holding power of a shielded state due to wind pressure or temperature rise due to a fire. Another object of the present invention is to provide a fire and smoke prevention shutter that can effectively prevent the spread of fire and the spread of smoke.
【0007】[0007]
【課題を解決するための手段】本発明者らは、上記目的
を達成するため鋭意研究した結果、耐火シートの床面側
端部両面に複数の重り用のバー部材を長手方向の所定間
隔を有して挟み込むように取り付け、且つその際一側面
のバー部材の所定間隔と他側面のバー部材の所定間隔と
を互い違いに位置させ、バー部材に長孔を開け、長孔内
を自在にスライドする留め具にて複数のバー部材を耐火
シートの床面側端部両面に取り付ければ、防火シートの
重りとなるバー部材の設置が容易となると共に、火災に
よる風圧や温度上昇に伴う変形に抗し易くなることを見
出し、本発明を完成するに至った。
Means for Solving the Problems The present inventors have conducted intensive studies to achieve the above object, and as a result, a plurality of weight bar members are provided on both sides of the floor side end portion of the fireproof sheet at predetermined intervals in the longitudinal direction. It is attached so as to sandwich it, and at this time, the predetermined interval of the bar member on one side and the predetermined interval of the bar member on the other side are alternately positioned, a long hole is opened in the bar member, and the inside of the long hole is slid freely. If multiple bar members are attached to both sides of the floor side end of the fire-resistant sheet with fasteners, it will be easy to install the bar member that will be the weight of the fire-resistant sheet, and will be resistant to deformation due to wind pressure and temperature rise due to fire. It has been found that the present invention can be easily performed, and the present invention has been completed.
【0008】すなわち、請求項1の発明は、天井や梁下
にこれから耐火シートを床面に垂下可能に設置し、火災
等の必要時に、前記耐火シートを床面に垂下させ建築構
造物等の内部空間を遮蔽する防火防煙シャッターにおい
て、前記耐火シートの床面側端部両面に複数の重り用の
バー部材を長手方向に所定間隔を有して挟み込むように
取り付け、且つ一側面のバー部材の所定間隔と他側面の
バー部材の所定間隔とが互い違いに位置するようにした
ことを特徴とする防火防煙シャッターを提供するもので
ある。かかる構成を採ることにより、設置時はバー部材
が複数に分割されているため分割搬入して設置すること
ができ、設置後は複数のバー部材が一体となっているた
め、火災による風圧に対して折れ曲がり変形が無く耐火
シートと床面や壁面との間に隙間が発生しない。
That is, according to the first aspect of the present invention, a fireproof sheet is installed below a ceiling or a beam so as to be able to hang down on the floor, and the fireproof sheet is hung down on the floor when a fire or the like is required. In a fireproof and smokeproof shutter for shielding an internal space, a plurality of weight bar members are attached to both sides of a floor side end portion of the fireproof sheet so as to be sandwiched at predetermined intervals in a longitudinal direction, and a bar member on one side surface And a predetermined interval between the bar members on the other side is alternately positioned. By adopting such a configuration, the bar member is divided into a plurality at the time of installation, so that it can be dividedly carried in and installed, and after the installation, since the plurality of bar members are integrated, the There is no gap between the fire-resistant sheet and the floor or wall surface.
【0009】また、請求項2の発明は、前記複数の重り
用のバー部材に長孔を開け、該長孔内を自在にスライド
する留め具にて、前記複数のバー部材を前記耐火シート
の床面側端部両面に取り付けてなる防火防煙シャッター
を提供するものである。かかる構成を採ることにより、
上記機能に加えて、火災による高熱によって生じる反り
や熱膨張等の変形を長孔内を自在にスライドする留め具
にて吸収するため、耐火シートと床面や壁面との間に隙
間が発生しない。
According to a second aspect of the present invention, the plurality of weight bar members are provided with long holes, and the plurality of bar members are attached to the fire-resistant sheet by fasteners which slide freely in the long holes. An object of the present invention is to provide a fireproof and smokeproof shutter attached to both sides of a floor side end. By adopting such a configuration,
In addition to the above functions, deformation such as warpage or thermal expansion caused by high heat due to fire is absorbed by fasteners that slide freely in the long holes, so that no gap is generated between the fireproof sheet and the floor or wall surface .
【0010】また、請求項3の発明は、前記留め具は、
常温時における前記複数の重り用のバー部材の長孔の外
側端部で位置決めし、前記耐火シートの床面側端部両面
に前記複数のバー部材を取り付けてなる防火防煙シャッ
ターを提供するものである。かかる構成を採ることによ
り、上記機能に加えて、火災による高熱によって生じる
熱膨張を吸収するため、耐火シートと床面との間に隙間
が発生しない。また、バー部材は一体となっているため
それ以上延びず、このため耐火シートが撓むことがな
い。
[0010] Further, according to the invention of claim 3, the fastener comprises:
A fire / smoke / shutter provided by positioning the plurality of bar members for weight at an outer end portion of a long hole of the plurality of weight bar members at normal temperature, and attaching the plurality of bar members to both floor-side end portions of the fireproof sheet. It is. By adopting such a configuration, in addition to the above function, a thermal expansion caused by high heat due to a fire is absorbed, so that no gap is generated between the fireproof sheet and the floor surface. Further, since the bar member is integrated, it does not extend any further, so that the fireproof sheet does not bend.
【0011】また、請求項4の発明は、前記複数の重り
用のバー部材は、前記耐火シートの床面側端部両面に取
り付けられた袋状物に収納されてなる防火防煙シャッタ
ーを提供するものである。かかる構成を採ることによ
り、袋状物に複数のバー部材を収納させて取り付けるこ
とができ、施工が容易となる。
Further, the invention according to claim 4 provides a fireproof and smokeproof shutter in which the plurality of weight bar members are housed in a bag-like material attached to both sides of the fireproof sheet on the floor side end. Is what you do. By adopting such a configuration, a plurality of bar members can be housed and attached to the bag-like material, which facilitates construction.
【0012】[0012]
【発明の実施の形態】次に、本発明の実施の形態におけ
る防火防煙シャッターを図1〜図7に基づいて詳述す
る。図1は本発明の実施の形態である防火防煙シャッタ
ーを示す斜視図、図2は本発明の実施の形態である防火
防煙シャッターの設置状態を示す横断面図、図3は図2
の防火防煙シャッター下部を拡大した斜視図である。図
において、防火防煙シャッター1は、天井や梁下に設置
され、火災等の必要時に、自重あるいは重りにより天井
や梁下から耐火シート2がガイド3により導かれ床面に
垂下して建築構造物等の内部空間を遮蔽する。この耐火
シート2は不図示の巻取装置により巻き上げ、巻き下げ
られるものである。防火防煙シャッター1の耐火シート
2は、その床面側端部両面には複数の重り用のフラット
バー4、5が長手方向の所定間隔6、7を有して挟み込
むように取り付けられ、且つその際一側面のフラットバ
ー4の所定間隔6と他側面のフラットバー5の所定間隔
7とが互い違いに位置している。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a fireproof and smokeproof shutter according to an embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a perspective view showing a fireproof and smokeproof shutter according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing an installation state of the fireproof and smokeproof shutter according to an embodiment of the present invention, and FIG.
FIG. 2 is an enlarged perspective view of the lower part of the fire and smoke prevention shutter of FIG. In the figure, a fireproof smokeproof shutter 1 is installed under a ceiling or under a beam, and when a fire or the like is required, a fireproof sheet 2 is guided by a guide 3 from below the ceiling or under a beam by its own weight or weight, and hangs down on the floor. Shields the internal space of things. The refractory sheet 2 is wound up and down by a winding device (not shown). The fireproof sheet 2 of the fireproof and smokeproof shutter 1 has a plurality of flat bars 4 and 5 for weights mounted on both sides of the floor side end portion thereof so as to sandwich the flat bars 4 and 5 at predetermined longitudinal intervals 6 and 7, and At this time, the predetermined interval 6 of the flat bar 4 on one side and the predetermined interval 7 of the flat bar 5 on the other side are alternately positioned.
【0013】前記耐火シート2は、ガラス繊維の織布や
シリカクロス等の不燃、耐火材料により構成されてい
る。耐火シート2の床面側端部両面に複数のフラットバ
ー4、5を取り付ける方法は、以下の通りである。すな
わち、フラットバー4、5の長手方向端部に長孔4a、
5aを設け、これらの長孔4a、5a内に留め具10を
スライド自在に留めて取け付る。留め具10は、この実
施形態ではボルト11とナット12で構成され、ボルト
11をフラットバー4の長孔4a、耐火シート2に開け
た孔2b、フラットバー5の長孔5aに順次通し、ナッ
ト12を締めつければ、耐火シート2の床面側端部両面
に複数のフラットバー4、5を取り付けることができ
る。そして、複数の重り用のフラットバー4、5は、所
定間隔6、7を有しているものの、あたかも1本の重り
バーと同じように形成される。なお、ナット12の締め
つけ具合は、フラットバー4、5の長孔4a、5a内を
ボルト11がスライドできる程度であればよい。従っ
て、ボルト11は、図4に示すように、ネジ11aが途
中まで切られている。また、留め具10としては、この
実施形態ではボルト11とナット12で構成されるが、
これに限定されず、同様の作用を奏する他の構造であっ
てもよい。
The refractory sheet 2 is made of a non-combustible, refractory material such as a woven glass fiber cloth or silica cloth. The method of attaching the plurality of flat bars 4 and 5 on both sides of the floor side end of the fireproof sheet 2 is as follows. That is, the long holes 4a are formed at the longitudinal ends of the flat bars 4, 5.
5a is provided, and the fastener 10 is slidably secured in these long holes 4a, 5a and attached. In this embodiment, the fastener 10 is constituted by a bolt 11 and a nut 12, and the bolt 11 is sequentially passed through the long hole 4a of the flat bar 4, the hole 2b formed in the refractory sheet 2, and the long hole 5a of the flat bar 5. By tightening 12, a plurality of flat bars 4, 5 can be attached to both sides of the floor side end of the refractory sheet 2. And although the flat bars 4 and 5 for weights have predetermined intervals 6 and 7, they are formed as if they were one weight bar. The nut 12 may be tightened as long as the bolt 11 can slide in the long holes 4a, 5a of the flat bars 4, 5. Therefore, as shown in FIG. 4, the screw 11a of the bolt 11 is partially cut. In this embodiment, the fastener 10 includes a bolt 11 and a nut 12,
The present invention is not limited to this, and may have another structure having the same effect.
【0014】そして、この留め具10は、常温時におけ
る複数のフラットバー4、5の長孔4a、5aの外端部
側で位置決めされ、この留め具10により、耐火シート
2の床面側端部両面に複数のフラットバー4、5が取り
付けられている。このように構成することで、火災によ
る高熱によって生じる熱膨張(図3中矢線A方向に伸び
る)を長孔4a、5a内を留め具10がスライドして吸
収しフラットバー4、5の反りや変形を防止する。この
ため、耐火シート2と床面との間に隙間が生じることは
ない。また、フラットバー4、5に所定間隔6、7を設
けたことにより、熱膨張の変形にも対応でき、ボルト1
1やボルト11による固定部分を破損させることがな
く、また耐火シート2も撓まない。
The fastener 10 is positioned at the outer ends of the long holes 4a and 5a of the plurality of flat bars 4 and 5 at normal temperature. A plurality of flat bars 4 and 5 are attached to both sides of the unit. With this configuration, the fastener 10 slides and absorbs the thermal expansion (extending in the direction of the arrow A in FIG. 3) generated by the high heat due to the fire in the long holes 4a, 5a, and the flat bars 4, 5 are warped. Prevent deformation. Therefore, there is no gap between the fireproof sheet 2 and the floor. Further, by providing the flat bars 4 and 5 with the predetermined intervals 6 and 7, it is possible to cope with deformation due to thermal expansion.
There is no damage to the portion fixed by 1 or bolt 11, and the refractory sheet 2 does not bend.
【0015】前記フラットバー4、5は、火災時に設置
場所である天井や梁下から耐火シート2を垂下させるの
に充分な重量があることが必要であり、更に、火災時の
風圧により耐火シート2が容易にまくれ上がらないだけ
の重量も必要である。しかしながら、あまり重くする
と、逃げ後れた人が避難できなくなるおそれがあるか
ら、必要最小限の重さにする必要がある。
The flat bars 4 and 5 need to have a sufficient weight to allow the fireproof sheet 2 to hang down from the ceiling or under the beam where the fire bar is installed in the event of a fire. It is necessary to have a weight that does not allow the 2 to roll up easily. However, if the weight is too high, a person who has escaped may not be able to evacuate.
【0016】図6及び図7は、前記複数の重り用のフラ
ットバー4、5の他の取り付け方法を示すものである。
すなわち、前記耐火シート2の床面側端部両面には袋状
物20が取り付けられ、その袋状物20にはスリット2
1が形成され、そのスリット21からフラットバー4、
5が袋状物20内に収納される。フラットバー4、5は
その状態で保持されるから、フラットバー4の長孔4
a、耐火シート2の孔2b、重り用フラットバー4の長
孔5aを合わせることは比較的容易に行える。その後は
図3のボルト11を袋状物20の上からこれらの孔に通
し、ナット12で締めつければ、耐火シート2にフラッ
トバー4、5を取り付けることができる。この方法によ
れば、作業効率が極めて高くなる。すなわち、袋状物を
設けないと、フラットバーを持つ作業者が2人、ボルト
締め作業者が1人必要となるが、フラットバーは容易に
袋状物に挿入、保持できるから作業者は1人でよい。ま
た、見た目も綺麗である。
FIGS. 6 and 7 show another mounting method of the flat bars 4 and 5 for the plurality of weights.
That is, the bag-like material 20 is attached to both sides of the floor side end portion of the refractory sheet 2, and the bag-like material 20 has slits 2.
1 are formed, and the flat bar 4 is formed from the slit 21.
5 is stored in the bag 20. Since the flat bars 4 and 5 are held in that state, the long holes 4 of the flat bar 4
a, the hole 2b of the refractory sheet 2 and the long hole 5a of the weight flat bar 4 can be relatively easily matched. Thereafter, the flat bars 4 and 5 can be attached to the refractory sheet 2 by passing the bolts 11 of FIG. According to this method, the working efficiency is extremely high. That is, if no bag-like material is provided, two workers with a flat bar and one bolt-fastening worker are required. However, since the flat bar can be easily inserted and held in the bag-like material, the number of workers is one. A person is fine. The appearance is also beautiful.
【0017】なお、図5〜図7中、耐火シート2の床面
側端部が袋状2aになっているのは、床面22との隙間
を無くし、煙が漏れないようにするためである。
In FIG. 5 to FIG. 7, the end of the refractory sheet 2 on the floor surface side is formed into a bag-like shape 2a in order to eliminate a gap with the floor surface 22 and to prevent smoke from leaking. is there.
【0018】次に、上記実施の形態における防火防煙シ
ャッター1の使用方法を説明する。まず、防火防煙シャ
ッター1の耐火シート2に重り用のフラットバー4、5
を、長手方向の所定間隙6、7を有し、且つ長孔4a、
5aの外端部側に位置決めし、留め具10にて取り付け
る。次に、建築構造物等の内部空間を遮蔽する位置の天
井や梁下に防火防煙シャッター1を設置する。火災が発
生すると図示しない巻取装置のロック状態が自動あるい
は手動で解除され、重り用のフラットバー4、5の重さ
により設置場所の天井や梁下から耐火シート2が垂下し
て建築構造物等の内部空間を遮蔽する。この状態では耐
火シート2が床面22(図4参照)に密着して、閉鎖状
態にあるから、火炎や煙を遮蔽している。逃げ遅れた避
難者はフラットバー4、5及び耐火シート2をめくり上
げて避難することができ、そのあとは再び耐火シート2
が床面22に密着して、閉鎖状態になり火炎や煙を遮蔽
する。火災が進行して高温とそれに伴う風圧が耐火シー
ト2を襲い、フラットバー4、5を熱膨張させるが、留
め具10や所定間隔6、7により防ぎ、更に、耐火シー
ト2を押し曲げようとするが、一体となったフラットバ
ー4、5により耐火シート2は曲がらず、建築構造物等
の内部空間の遮蔽状態を維持し、火炎や煙が遮蔽され
る。火災が鎮火したあと、防火防煙シャッター1の変形
や撓りが少ない構造であるから、被害が少ない状態が予
測され、建物全体の被害も少なければ、防火防煙シャッ
ター1を再び使用することができる。
Next, a method for using the fire and smoke prevention shutter 1 in the above embodiment will be described. First, flat bars 4, 5, 5 for weight are placed on the fireproof sheet 2 of the fireproof smokeproof shutter 1.
Have predetermined gaps 6 and 7 in the longitudinal direction, and have long holes 4a,
It is positioned on the outer end side of 5a and attached with the fastener 10. Next, the fireproof and smokeproof shutter 1 is installed on the ceiling or under the beam at a position where the internal space of the building structure or the like is shielded. When a fire occurs, the locking state of the winding device (not shown) is automatically or manually released, and the fireproof sheet 2 hangs down from the ceiling or under the beam at the installation location due to the weight of the weight flat bars 4 and 5. To shield the internal space. In this state, the fireproof sheet 2 is in close contact with the floor surface 22 (see FIG. 4) and is in a closed state, so that the fire and smoke are blocked. The evacuees who have escaped late can turn up the flat bars 4, 5 and the fireproof sheet 2 to evacuate, and then re-enter the fireproof sheet 2 again.
Is in close contact with the floor surface 22 and is closed to shield the flame and smoke. As the fire progresses, the high temperature and the accompanying wind pressure strike the refractory sheet 2 and thermally expand the flat bars 4 and 5, but are prevented by the fasteners 10 and the predetermined intervals 6 and 7, and furthermore, the refractory sheet 2 is pressed and bent. However, the fireproof sheet 2 is not bent by the integrated flat bars 4 and 5, and the internal space of the building structure or the like is kept shielded, and the flame and smoke are shielded. After the fire has been extinguished, the structure of the fire and smoke shutter 1 is less likely to be deformed or warped. Therefore, it is expected that damage will be small, and if the damage to the entire building is small, the fire and smoke shutter 1 may be used again. it can.
【0019】本発明において、バー部材としては、上記
実施の形態例で使用するフラットバー以外に、例えば、
断面がL状のLアングルや、断面が略C状にC型鋼など
が挙げられる。
In the present invention, as the bar member, other than the flat bar used in the above embodiment, for example,
Examples include an L angle having an L-shaped cross section and a C-shaped steel having a substantially C-shaped cross section.
【0020】以上、本発明の実施形態を説明したが、具
体的な構成はこれに限定されず、例えば、耐火シートに
避難扉を設ける等、本発明の趣旨を逸脱しない範囲内で
の変更、追加は本発明の範囲内である。
Although the embodiment of the present invention has been described above, the specific configuration is not limited to this. For example, a change without departing from the spirit of the present invention, such as providing an evacuation door on a fireproof sheet, etc. Additions are within the scope of the present invention.
【0021】[0021]
【発明の効果】請求項1の発明によれば、設置時は重り
用のバー部材が複数に分割されているから分割搬入して
設置することができ、設置後は複数のバー部材が一体化
しているため、火災による風圧に対して折れ曲がり変形
が無く、耐火シートと床面や壁面との間に隙間が生じる
こともない。従って、搬入設置が容易となり、特に耐火
シートの幅が大きく、1本もののバー部材では長過ぎる
ものに効果が高く、火災によって発生する風圧や温度上
昇に伴う遮蔽状態の保持力低下を防止して、人の避難を
担保しつつ、避難後の延焼や煙の拡散を有効に防止する
ことができる。
According to the first aspect of the present invention, the weight bar member is divided into a plurality of parts at the time of installation, so that the weight bar member can be divided and carried in and installed. After the installation, the plurality of bar members are integrated. Therefore, there is no bending deformation due to wind pressure caused by the fire, and no gap is generated between the fireproof sheet and the floor or wall surface. Therefore, it is easy to carry in and install, particularly, the width of the refractory sheet is large, and the effect is high when one bar member is too long, and the holding force of the shielded state due to the wind pressure or temperature rise caused by the fire is prevented from lowering. In addition, it is possible to effectively prevent the spread of fire and the spread of smoke after evacuation, while ensuring the evacuation of people.
【0022】請求項2の発明によれば、火災による高熱
によって生じる反りや熱膨張等の変形を長孔内を自在に
スライドする留め具にて吸収して、耐火シートと床面や
壁面との間には隙間が発生しない。従って、上記効果に
加えて、重り用のバー部材の反りや熱膨張等の変形がな
いから、温度上昇に伴う遮蔽状態の保持力低下が無く、
延焼や煙の拡散を有効に防止することができる。
According to the second aspect of the present invention, deformation such as warpage or thermal expansion caused by high heat due to a fire is absorbed by the fastener that slides freely in the long hole, and the fireproof sheet and the floor or wall face are connected to each other. There is no gap between them. Therefore, in addition to the above effects, since there is no deformation such as warpage or thermal expansion of the weight bar member, there is no decrease in the holding force of the shielded state due to the temperature rise,
Spread of fire and diffusion of smoke can be effectively prevented.
【0023】請求項3の発明によれば、火災による高熱
によって生じる熱膨張を吸収し耐火シートと床面との間
に隙間が生じないばかりか、風圧により一体となった重
り用のバー部材がそれ以上延びず、耐火シートは撓むこ
とがない。従って、上記効果に加えて、耐火シートの撓
みによる遮蔽状態の低下が無く、延焼や煙の拡散を有効
に防止できる。
According to the third aspect of the present invention, not only the thermal expansion caused by the high heat due to the fire is absorbed and a gap is not formed between the refractory sheet and the floor surface, but also the weight bar member integrated by the wind pressure is provided. It does not extend any further and the refractory sheet does not flex. Therefore, in addition to the above effects, there is no reduction in the shielding state due to the bending of the refractory sheet, and it is possible to effectively prevent the spread of fire and the diffusion of smoke.
【0024】請求項4の発明によれば、袋状物に複数の
重り用のバー部材を収納させれば取り付けができる。従
って、上記効果に加えて、耐火シートに複数のバー部材
を取り付けるのが極めて容易となり、その分現場での作
業が減り、製品の品質とコストダウンが図れる。
According to the fourth aspect of the present invention, if a plurality of weight bar members are housed in the bag-like material, the weight can be attached. Therefore, in addition to the above-mentioned effects, it becomes extremely easy to attach a plurality of bar members to the fireproof sheet, so that the work on site is reduced by that much, and the quality and cost of products can be reduced.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の実施の形態である防火防煙シャッター
を示す斜視図である。
FIG. 1 is a perspective view showing a fire and smoke shutter according to an embodiment of the present invention.
【図2】本発明の実施の形態である防火防煙シャッター
の設置状態を示す横断面図である。
FIG. 2 is a cross-sectional view showing an installation state of a fireproof and smokeproof shutter according to an embodiment of the present invention.
【図3】図2の防火防煙シャッター下部を拡大した斜視
図である。
FIG. 3 is an enlarged perspective view of a lower part of a fire and smoke shutter of FIG. 2;
【図4】図2の防火防煙シャッターを構成する留め具の
装着状態を示す断面図である。
FIG. 4 is a cross-sectional view showing a mounting state of a fastener constituting the fire and smoke prevention shutter of FIG. 2;
【図5】本発明の実施の形態である防火防煙シャッター
を構成する他の耐火シート下部の断面図である。
FIG. 5 is a sectional view of a lower portion of another fireproof sheet constituting the fireproof and smokeproof shutter according to the embodiment of the present invention.
【図6】本発明の実施の形態である防火防煙シャッター
を構成する他のフラットバーの取り付け状態を示す断面
図である。
FIG. 6 is a cross-sectional view showing an attached state of another flat bar constituting the fire and smoke prevention shutter according to the embodiment of the present invention.
【図7】本発明の実施の形態である防火防煙シャッター
を構成する他のフラットバーの取り付け状態を示す斜視
図である。
FIG. 7 is a perspective view showing an attached state of another flat bar constituting the fire and smoke prevention shutter according to the embodiment of the present invention.
【図8】従来例を示す斜視図である。FIG. 8 is a perspective view showing a conventional example.
【図9】従来例を示す斜視図である。FIG. 9 is a perspective view showing a conventional example.
【符号の説明】[Explanation of symbols]
1、50、50a 防火防煙シャッター 2、52 耐火シート 2a 袋状 3 ガイド 4、5 フラットバー(バー部材) 4a、5a 長孔 6、7 所定間隔 10 留め具 11 ボルト 12 ナット 20 袋状物 21 スリット 22 床面 51、54 重り 53 スリット部 55、56 メインウエイトバー 57、58 サブウエイトバー 1, 50, 50a Fireproof and smokeproof shutter 2, 52 Fireproof sheet 2a Bag 3 Guide 4, 5 Flat bar (bar member) 4a, 5a Slot 6, 7, Predetermined interval 10 Fastener 11 Bolt 12 Nut 20 Bag 20 Slit 22 Floor 51, 54 Weight 53 Slit 55, 56 Main weight bar 57, 58 Sub weight bar

Claims (4)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 天井や梁下にこれから耐火シートを床面
    に垂下可能に設置し、火災等の必要時に、前記耐火シー
    トを床面に垂下させ建築構造物等の内部空間を遮蔽する
    防火防煙シャッターにおいて、前記耐火シートの床面側
    端部両面に複数の重り用のバー部材を長手方向に所定間
    隔を有して挟み込むように取り付け、且つ一側面のバー
    部材の所定間隔と他側面のバー部材の所定間隔とが互い
    違いに位置するようにしたことを特徴とする防火防煙シ
    ャッター。
    1. A fire protection system in which a fireproof sheet is installed below a ceiling or a beam so that the fireproof sheet can be hung on a floor surface, and when a fire or the like is required, the fireproof sheet is hung on the floor surface to shield an internal space of a building structure or the like. In the smoke shutter, a plurality of weight bar members are attached to both sides of the floor side end portion of the fire-resistant sheet so as to be sandwiched at a predetermined interval in the longitudinal direction, and a predetermined interval between the bar members on one side and the other side are provided. A fire-and-smoke-proof shutter, characterized in that predetermined intervals of the bar members are located alternately.
  2. 【請求項2】 前記複数の重り用のバー部材に長孔を開
    け、該長孔内を自在にスライドする留め具にて、前記複
    数のバー部材を前記耐火シートの床面側端部両面に取り
    付けてなる請求項1記載の防火防煙シャッター。
    2. A plurality of bar members for weight are formed with long holes, and the plurality of bar members are attached to both sides of a floor side end of the refractory sheet with a fastener which slides freely in the long holes. The fireproof and smokeproof shutter according to claim 1, which is attached.
  3. 【請求項3】 前記留め具は、常温時における前記複数
    の重り用のバー部材の長孔の外側端部で位置決めし、前
    記耐火シートの床面側端部両面に前記複数のバー部材を
    取り付けてなる請求項2記載の防火防煙シャッター。
    3. The fastener is positioned at an outer end of a long hole of the plurality of weight bar members at normal temperature, and the plurality of bar members are attached to both sides of a floor side end of the fireproof sheet. The fire and smoke prevention shutter according to claim 2, wherein
  4. 【請求項4】 前記複数の重り用のバー部材は、前記耐
    火シートの床面側端部両面に取り付けられた袋状物に収
    納されてなる請求項1〜3にいずれか1項記載の防火防
    煙シャッター。
    4. The fire prevention device according to claim 1, wherein the plurality of weight bar members are housed in a bag-like material attached to both sides of a floor side end of the fire-resistant sheet. Smoke-proof shutter.
JP26000399A 1999-09-14 1999-09-14 Fire and smoke shutter Expired - Fee Related JP3638826B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26000399A JP3638826B2 (en) 1999-09-14 1999-09-14 Fire and smoke shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26000399A JP3638826B2 (en) 1999-09-14 1999-09-14 Fire and smoke shutter

Publications (2)

Publication Number Publication Date
JP2001079105A true JP2001079105A (en) 2001-03-27
JP3638826B2 JP3638826B2 (en) 2005-04-13

Family

ID=17341959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26000399A Expired - Fee Related JP3638826B2 (en) 1999-09-14 1999-09-14 Fire and smoke shutter

Country Status (1)

Country Link
JP (1) JP3638826B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006063739A (en) * 2004-08-30 2006-03-09 Chuo Spring Co Ltd Screen rise and fall device
JP2007044554A (en) * 2006-11-13 2007-02-22 Bunka Shutter Co Ltd Closing side tip structure of fire-proof closing apparatus
JP2007097812A (en) * 2005-10-04 2007-04-19 Taisei Corp Fire-resistant partition wall
JP2008019669A (en) * 2006-07-14 2008-01-31 Bunka Shutter Co Ltd Opening and closing device
JP2013135831A (en) * 2011-09-30 2013-07-11 Okada Soshoku Kanamono Kk Rail member and section wall structure including the same
JP2015034387A (en) * 2013-08-08 2015-02-19 ワールド工業株式会社 Sheet shutter
JP2018035563A (en) * 2016-08-31 2018-03-08 小松電機産業株式会社 Grounding part structure of sheet for sheet shutter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05125874A (en) * 1991-10-03 1993-05-21 Fujita Corp Fire protecting unit
JPH09203281A (en) * 1996-01-30 1997-08-05 Nichias Corp Fire or smoke-fire shutter
JPH1015100A (en) * 1996-07-02 1998-01-20 Ohbayashi Corp Screen system for fireproof zone to easily pass person
JPH1033705A (en) * 1996-07-30 1998-02-10 Ohbayashi Corp Room dividing screen device for fire prevention
JPH11206902A (en) * 1998-01-21 1999-08-03 Bunka Shutter Co Ltd Fireproof screen apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05125874A (en) * 1991-10-03 1993-05-21 Fujita Corp Fire protecting unit
JPH09203281A (en) * 1996-01-30 1997-08-05 Nichias Corp Fire or smoke-fire shutter
JPH1015100A (en) * 1996-07-02 1998-01-20 Ohbayashi Corp Screen system for fireproof zone to easily pass person
JPH1033705A (en) * 1996-07-30 1998-02-10 Ohbayashi Corp Room dividing screen device for fire prevention
JPH11206902A (en) * 1998-01-21 1999-08-03 Bunka Shutter Co Ltd Fireproof screen apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006063739A (en) * 2004-08-30 2006-03-09 Chuo Spring Co Ltd Screen rise and fall device
JP2007097812A (en) * 2005-10-04 2007-04-19 Taisei Corp Fire-resistant partition wall
JP2008019669A (en) * 2006-07-14 2008-01-31 Bunka Shutter Co Ltd Opening and closing device
JP2007044554A (en) * 2006-11-13 2007-02-22 Bunka Shutter Co Ltd Closing side tip structure of fire-proof closing apparatus
JP4499079B2 (en) * 2006-11-13 2010-07-07 文化シヤッター株式会社 Closed tip structure of fire protection closure device
JP2013135831A (en) * 2011-09-30 2013-07-11 Okada Soshoku Kanamono Kk Rail member and section wall structure including the same
JP2015034387A (en) * 2013-08-08 2015-02-19 ワールド工業株式会社 Sheet shutter
JP2018035563A (en) * 2016-08-31 2018-03-08 小松電機産業株式会社 Grounding part structure of sheet for sheet shutter

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