JP3320635B2 - Fireproof screen - Google Patents
Fireproof screenInfo
- Publication number
- JP3320635B2 JP3320635B2 JP15033097A JP15033097A JP3320635B2 JP 3320635 B2 JP3320635 B2 JP 3320635B2 JP 15033097 A JP15033097 A JP 15033097A JP 15033097 A JP15033097 A JP 15033097A JP 3320635 B2 JP3320635 B2 JP 3320635B2
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- Prior art keywords
- fire
- woven fabric
- layer
- screen according
- combustible
- Prior art date
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Description
【０００１】[0001]
【発明の属する技術分野】本発明は、建物で火災が発生
した際に炎や煙が広がるのを食い止める耐火スクリーン
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof screen for preventing the spread of flames and smoke when a fire occurs in a building.
【０００２】[0002]
【従来の技術】建物で火災が発生した際に炎や煙が広が
るのを食い止める新しい装置として、図８に示すような
延焼防止装置５０が考えられている（例えば特開平７−
３２８１３７号公報）。この延焼防止装置５０は、ガラ
スクロス（ガラス繊維ヤーンで製織された織布）等より
なる耐火スクリーン５２を天井５３の巻取装置５１から
床５４の上方約５０〜１００ｃｍの高さまで垂らし、天
井５３付近に設置したスプリンクラー５５から水５６を
耐火スクリーン５２に噴射し、該耐火スクリーン５２を
濡らすように構成されている。この耐火スクリーン５２
は、そのままでは炎５７にさらされると溶融するおそれ
があるが、前記のように濡らすと、水５６の蒸発による
冷却効果によって温度が５０〜６０℃に抑えられるた
め、溶融しない。また、耐火スクリーン５２より下方で
は、耐火スクリーン５２の下端から滴り落ちる水５６の
膜で炎５７や煙５８の通過を遮断する。2. Description of the Related Art As a new device for preventing the spread of flames and smoke when a fire occurs in a building, a fire spread prevention device 50 as shown in FIG.
328137). This fire spread prevention device 50 hangs a refractory screen 52 made of glass cloth (woven cloth woven with glass fiber yarn) from a winding device 51 of a ceiling 53 to a height of about 50 to 100 cm above a floor 54 and a ceiling 53. Water 56 is sprayed onto the refractory screen 52 from a sprinkler 55 installed nearby to wet the refractory screen 52. This fire screen 52
May melt when exposed to the flame 57 as it is, but does not melt when wet as described above because the temperature is suppressed to 50 to 60 ° C. by the cooling effect due to the evaporation of the water 56. Further, below the refractory screen 52, the film of water 56 dripping from the lower end of the refractory screen 52 blocks the passage of the flame 57 and smoke 58.
【０００３】また、最近では、シリカクロス（シリカ繊
維ヤーンで製織された織布）よりなる耐火スクリーン５
２を使用することにより、スプリンクラー５５による水
５６の噴射を不要にした延焼防止装置も考えられてい
る。Recently, a refractory screen 5 made of silica cloth (woven cloth woven with a silica fiber yarn) has been used.
A fire spread prevention device which eliminates the necessity of injecting the water 56 by the sprinkler 55 by using No. 2 is also considered.
【０００４】[0004]
【発明が解決しようとする課題】上記耐火スクリーン５
２は、図９に実線で示すようにきれいな長方形状で垂れ
る必要がある。ところが、シリカクロスよりなる耐火ス
クリーン５２は、ヤーン同志が滑って面延長方向に変形
し易いことから、図９に二点鎖線で示すように平行四辺
形状に変形（いわゆる目ずれ）して垂れ、耐火スクリー
ン５２側方に隙間ができるという問題があった。The above refractory screen 5
2 must hang in a clean rectangular shape as shown by the solid line in FIG. However, since the refractory screen 52 made of silica cloth is liable to be deformed in the surface extending direction due to slippage between the yarns, it is deformed into a parallelogram (so-called misalignment) as shown by a two-dot chain line in FIG. There is a problem that a gap is formed on the side of the refractory screen 52.
【０００５】そこで、図１０に示すように、シリカクロ
スよりなる耐火スクリーン５２の表面にシリコン樹脂６
０を塗布してヤーン同志の滑りを止めることにより、目
ずれを防ぐことが検討されている。しかし、この耐火ス
クリーン５２が炎にさらされると、耐火スクリーン５２
が著しく脆弱化し、破れやすくなるという問題があっ
た。これは、シリコン樹脂中のシロキサン結合部分がＳ
ｉＯ2 化する際に、基材のシリカクロスと反応するため
であると考えられる。Therefore, as shown in FIG. 10, a silicon resin 6
It has been studied to prevent slippage by applying 0 to stop slippage of the yarns. However, when the refractory screen 52 is exposed to flame, the refractory screen 52
However, there has been a problem that the fragility is remarkably weakened and easily broken. This is because the siloxane bond in the silicone resin is S
This is considered to be due to the reaction with the silica cloth of the base material when converting to iO 2 .
【０００６】ところで、耐火スクリーンは、建築基準法
により、防火区画における開口部すなわち防火戸（特に
甲種防火戸）に準じ、次に概略的に示す防火性能及び遮
煙性能が要求される。[0006] By the way, fireproof screens are required to have the following general fireproof performance and smokeproof performance in accordance with the Building Standard Law, in accordance with the openings in fireproof compartments, ie fire doors (especially Class A fire doors).
【０００７】（１）防火性能； 耐火スクリーンの両面
についてそれぞれ６０分間、加熱温度が９２５℃に達す
るまで制御しながら加熱した後、次の判定〜を行な
う。 加熱により加熱面の裏面側に発炎を生じないこと。 加熱により隙間、加熱面の裏面側に達する亀裂等を
生じないこと。 加熱により加熱面の裏面側に発煙を生じないこと。 加熱終了後、重量３ｋｇの砂袋を鉛直距離５０ｃｍ
の高さから落下させて衝撃を与えたとき、防火上有害な
破壊、剥離、脱落等を起こさないこと。(1) Fire protection performance: After heating the both sides of the refractory screen for 60 minutes while controlling the heating temperature to 925 ° C., the following judgments are made. Flames should not occur on the back side of the heated surface due to heating. No gaps or cracks reaching the back side of the heated surface due to heating. Smoke should not be generated on the back side of the heated surface by heating. After heating is completed, a sand bag weighing 3 kg is placed 50 cm vertically.
Do not cause harmful destruction, peeling, falling off, etc. in fire prevention when dropped from a height and subjected to impact.
【０００８】（２）遮煙性能； 耐火スクリーンの両面
についてそれぞれ空気圧を加え、両面における空気圧の
圧力差が２ｋｇ／ｍ2 の場合における通気量が、毎分
０．２ｍ3 ／ｍ2 以下であること。(2) Smoke barrier performance: Air pressure is applied to both sides of the refractory screen, and when the pressure difference between the air pressures on both sides is 2 kg / m 2 , the ventilation rate is 0.2 m 3 / m 2 or less per minute. thing.
【０００９】上記シリコン樹脂６０を塗布したシリカク
ロス製の耐火スクリーン５２は、防火性能のと、
遮煙性能とを満足するが、上記加熱後の脆弱化により、
防火性能の（衝撃試験）は満足しないのである。The refractory screen 52 made of silica cloth coated with the silicone resin 60 has a fireproof performance.
It satisfies the smoke shielding performance, but due to the weakness after the above heating,
The fire protection performance (impact test) is not satisfied.
【００１０】また、シリカクロスは、工場において例え
ば幅１ｍのロール状に製造されることが多いため、大面
積の耐火スクリーン５２を形成するには、図１１に示す
ように、複数枚のシリカクロス５２ａを使用し、その幅
を横方向に並べて縁部５９同志を重ねるとともに糸６１
で縫合する必要がある。しかし、そうすると重ねた両縁
部５９の厚さだけが他部の２倍になって嵩張り、図１２
に示すように、巻き取った時に巻き間に無駄な空間がで
き、巻径がいたずらに大きくなるという問題があった。[0010] Further, since silica cloth is often manufactured in a roll shape having a width of, for example, 1 m in a factory, a plurality of silica cloths are formed as shown in FIG. 52a, the width thereof is arranged in the horizontal direction, the edges 59 are overlapped, and the yarn 61
Need to be sutured. However, in this case, only the thickness of the overlapped edge portions 59 is twice as large as that of the other portions, and the thickness is increased.
As shown in (1), there is a problem in that when winding, an unnecessary space is formed between the windings, and the winding diameter becomes unnecessarily large.
【００１１】そこで、本発明の課題は、目ずれを防止で
き、かつ、法定の防火性能（特に衝撃試験）及び遮煙性
能を満足できる耐火スクリーンを提供することにある。It is an object of the present invention to provide a fire-resistant screen which can prevent misalignment and satisfy the statutory fire prevention performance (particularly impact test) and smoke-proof performance.
【００１２】[0012]
【課題を解決するための手段】上記課題を解決するため
に、本発明は、平常時には建物の天井に設置される巻取
装置に巻き取られ、火災発生時には前記巻取装置から巻
き解かれて垂らされる耐火スクリーンにおいて、無機繊
維を主体とするヤーンで製織した不燃性織布を２層以上
に重ねるとともに接合して目ずれを防止し、該不燃性織
布の間にアルミニウム箔等の金属箔を介装して防火性能
及び遮煙性能を高めたことを特徴とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a winding apparatus which is normally wound on a winding device installed on a ceiling of a building, and is unwound from the winding device when a fire occurs. In the hanging fireproof screen, non-combustible woven fabric woven with a yarn mainly composed of inorganic fibers is overlapped in two or more layers and joined to prevent misalignment.
Fireproof performance by interposing metal foil such as aluminum foil between cloths
And it is characterized by improved smoke shielding performance .
【００１３】ここで、不燃性織布の幅に対して耐火スク
リーンの面積が大きい場合、各層において複数枚の不燃
性織布を横方向又は縦方向に並べ、一方の層の各不燃性
織布の幅の一部と他方の層の各不燃性織布の幅の一部と
が千鳥状に交互に重なるようにすることができる。「幅
の一部」は、特に限定されないが、幅の１／１０〜１／
２程度が好ましい。この場合、さらに次の態様（１）
（２）を例示できる。Here, when the area of the refractory screen is large relative to the width of the non-combustible woven fabric, a plurality of non-combustible woven fabrics are arranged in each layer in the horizontal or vertical direction, and each of the non-combustible woven fabrics in one layer is formed. A part of the width of the non-combustible woven fabric of the other layer and a part of the width of each of the non-combustible woven fabrics of the other layer can be alternately overlapped. "Part of width" is not particularly limited, but is 1/10 to 1/1 / of the width.
About 2 is preferable. In this case, the following aspect (1)
(2) can be exemplified.
【００１４】（１）各層において横方向又は縦方向に並
べた不燃性織布の縁部同志を、重ねることなく突き合わ
せること。さらに、その縁部同志の突き合わせ部に別の
短冊状の不燃性織布を重ねて接合すること。 （２）各層において横方向又は縦方向に並べた不燃性織
布の縁部同志を、さらに重ねて接合すること。(1) The edges of the non-combustible woven fabric arranged in the horizontal or vertical direction in each layer are abutted without overlapping. In addition, another strip of non-combustible woven fabric is overlapped and joined to the butted portion of the edges. (2) The edges of the non-combustible woven fabric arranged in the horizontal or vertical direction in each layer are further overlapped and joined.
【００１５】ヤーンの構成主体である無機繊維は、特に
限定されず、シリカ繊維、アルミナシリカ系繊維、アル
ミナ繊維、岩綿、スラグウール、一般的なガラス繊維等
を例示でき、その耐熱性の基準としては、安全使用温度
が６００℃以上であることが好ましい。特に、前述した
ようにシリコン樹脂との反応による脆弱化が起こるシリ
カ繊維を採用する場合に、該シリコン樹脂の使用を回避
できる本発明は有効である。The inorganic fiber which is the main constituent of the yarn is not particularly limited, and examples thereof include silica fiber, alumina-silica fiber, alumina fiber, rock wool, slag wool, and general glass fiber. It is preferable that the safe use temperature is 600 ° C. or higher. In particular, as described above, the present invention that can avoid the use of the silicon resin is effective when the silica fiber that is weakened by the reaction with the silicon resin is used.
【００１６】ヤーンは、脆さを補ったり柔軟性や製織性
等を高めたりするために、有機繊維又は金属繊維を、前
記耐熱性を損なわない範囲で少量含んでいてもよい。有
機繊維としては、難燃スフ、アラミド繊維等の難燃繊維
や、炭化有機繊維（例えばポリアクリロニトリル繊維が
６０％前後炭化したもの）等の不燃繊維を例示できる。
金属繊維としてはステンレス繊維を例示できる。The yarn may contain a small amount of an organic fiber or a metal fiber as long as the heat resistance is not impaired, in order to compensate for brittleness and increase flexibility and weaving properties. Examples of the organic fibers include flame-retardant fibers such as flame-retardant soft fibers and aramid fibers, and non-combustible fibers such as carbonized organic fibers (for example, polyacrylonitrile fibers carbonized to about 60%).
Stainless steel fibers can be exemplified as the metal fibers.
【００１７】ヤーンは、耐火スクリーンの引張強度を高
めるために、補強線状体で補強されたものでもよい。補
強線状体としては、ヤーンに芯糸として入れるシリカ繊
維、一般的なガラス繊維、アルミナ繊維等の無機繊維
や、補強線としてヤーンと撚り合わせるステンレス鋼線
等の金属線を例示できる。[0017] The yarn may be reinforced with a reinforcing linear body to increase the tensile strength of the refractory screen. Examples of the reinforcing linear body include inorganic fibers such as silica fiber, general glass fiber, and alumina fiber to be inserted into the yarn as a core yarn, and metal wires such as a stainless steel wire twisted with the yarn as the reinforcing wire.
【００１８】製織の仕方は、特に限定されず、平織、綾
織、朱子織等を例示できる。The weaving method is not particularly limited, and examples thereof include plain weave, twill weave and satin weave.
【００１９】２枚以上の不燃性織布を接合する手段は、
特に限定されず、次のものを例示できる。 （１）各不燃性織布の間に介した熱溶融性材料による融
着 熱溶融性材料としては、熱可塑性樹脂フィルム、ホット
メルト接着剤等を例示できる。 （２）各不燃性織布の間に介した接着剤による接着 接着剤としては、ゴム系、アクリル系等を例示できる。
その塗布法としては、スプレーコート、ロールコート等
を例示できる。 （３）糸による縫合 糸は、耐火性又は難燃性の糸が好ましく、無機系（セラ
ミック等）、金属系（ステンレス鋼等）、難燃系（アラ
ミド等）等を例示できる。The means for joining two or more non-combustible woven fabrics includes:
There is no particular limitation, and the following can be exemplified. (1) Fusing with a heat-fusible material interposed between non-combustible woven fabrics Examples of the heat-fusible material include a thermoplastic resin film and a hot melt adhesive. (2) Adhesion with an adhesive between each non-combustible woven fabric Examples of the adhesive include rubber-based and acrylic-based adhesives.
Examples of the coating method include spray coating and roll coating. (3) The suture using a thread is preferably a fire-resistant or flame-retardant thread, and examples thereof include inorganic (such as ceramic), metal (such as stainless steel), and flame-retardant (such as aramid).
【００２０】耐火スクリーンの厚さは、特に限定されな
いが、炎に耐えて炎や煙をしっかり遮断するとともに、
熱風にあおられないよう、０．３〜６．０ｍｍとするこ
とが好ましく、さらに好ましくは０．６〜２．０ｍｍで
ある。従って、各不燃性織布の厚さは、その重ねる層数
で前記耐火スクリーンの厚さを除した範囲が好ましい。
また、各層の不燃性織布の厚さや種類を異ならせてもよ
い。The thickness of the refractory screen is not particularly limited.
The thickness is preferably 0.3 to 6.0 mm, more preferably 0.6 to 2.0 mm, so as not to be flooded by hot air. Therefore, the thickness of each noncombustible woven fabric is preferably in a range in which the thickness of the refractory screen is divided by the number of layers to be laminated.
Further, the thickness and type of the non-combustible woven fabric of each layer may be different.
【００２１】[0021]
【発明の実施の形態】図１〜図３は本発明の第一実施形
態を示している。延焼防止装置１は、建物の天井１５の
上部又は下部に設置される巻取装置２と、平常時には巻
取装置２に巻き取られ、火災の発生時には巻取装置２か
ら巻き解かれて建物の床１７付近まで垂らされる耐火ス
クリーン３と、天井１５、壁１６等に設置される火災検
知器４と、火災検知器４が火災の発生を検知したときに
巻取装置２を作動させる制御装置５とから構成されてい
る。巻取装置２は、回転可能に支持された巻取軸６と、
該巻取軸６を回転駆動するモータ使用の駆動装置７とか
らなる。火災検知器４には、温度センサ、煙センサ、ガ
スセンサ等が単独で又は組み合わせられて用いられ、温
度上昇、煙、ガス等の検知によって火災の発生を検知す
るようになっている。1 to 3 show a first embodiment of the present invention. The fire spread prevention device 1 is taken up by the winding device 2 installed above or below the ceiling 15 of the building, and is wound up by the winding device 2 in normal times, and is unwound from the winding device 2 in the event of a fire. A fireproof screen 3 hanging down to the vicinity of a floor 17, a fire detector 4 installed on a ceiling 15, a wall 16, and the like, and a control device 5 for operating the winding device 2 when the fire detector 4 detects the occurrence of a fire. It is composed of The winding device 2 includes a winding shaft 6 rotatably supported,
And a drive device 7 using a motor for driving the winding shaft 6 to rotate. As the fire detector 4, a temperature sensor, a smoke sensor, a gas sensor, and the like are used alone or in combination, and the occurrence of a fire is detected by detecting a temperature rise, smoke, gas, and the like.
【００２２】耐火スクリーン３は、シリカクロス９（シ
リカ繊維を主体とするヤーン８で例えば朱子織された不
燃性織布）を略全面的に２層に重ねるとともに、両シリ
カクロス９の間に熱溶融性のポリエチレンフィルム１０
を介し、該ポリエチレンフィルム１０を熱溶融させてか
ら冷却固化させることにより、両シリカクロス９を融着
して形成されたものである。ヤーン８は９５％以上のＳ
ｉＯ2 成分を含むシリカ繊維（高珪酸ガラス繊維）によ
る撚糸であり、ヤーン８の太さは例えば１５０テックス
である。各シリカクロス９の厚さは例えば約１ｍｍ、ポ
リエチレンフィルム１０の厚さは例えば２０μｍ、従っ
て耐火スクリーン３の厚さは約２ｍｍである。The refractory screen 3 has a silica cloth 9 (a non-combustible woven cloth made of, for example, satin woven with a yarn 8 mainly composed of silica fibers) superimposed almost entirely in two layers, and a thermal cloth between the two silica cloths 9. Meltable polyethylene film 10
Then, the polyethylene film 10 is heated and melted, and then cooled and solidified, so that both silica cloths 9 are fused and formed. Yarn 8 has 95% or more S
The yarn 8 is a twisted yarn made of silica fiber (high silicate glass fiber) containing an iO 2 component, and the thickness of the yarn 8 is, for example, 150 tex. The thickness of each silica cloth 9 is, for example, about 1 mm, the thickness of the polyethylene film 10 is, for example, 20 μm, and thus the thickness of the refractory screen 3 is about 2 mm.
【００２３】シリカクロス９は、工場において例えば幅
１ｍｍのロール状に製造されたものである。そこで、大
面積の耐火スクリーン３を形成するために、図２に示す
ように、各層において複数枚のシリカクロス９を横方向
に並べ、一方の層の各シリカクロス９の幅の例えば半分
と他方の層の各シリカクロス９の幅の例えば半分とが千
鳥状に交互に重なるようにしてある。また本実施形態で
は、各層において横方向に並べたシリカクロス９の縁部
１２同志は、重なることなく突き合わされている。この
重ね方により、図１１及び図１２のように一部の厚さだ
けが他部の２倍になって嵩張るということが無く、巻き
取った時に巻き間に無駄な空間ができない。従って、合
理的な巻径が得られる。The silica cloth 9 is manufactured in a factory, for example, in a roll shape having a width of 1 mm. Therefore, in order to form the fire screen 3 having a large area, as shown in FIG. 2, a plurality of silica cloths 9 are arranged in each layer in a horizontal direction, and for example, half of the width of each of the silica cloths 9 in one layer and the other side. For example, half of the width of each silica cloth 9 of the layer is alternately overlapped in a staggered manner. In the present embodiment, the edges 12 of the silica cloth 9 arranged in the horizontal direction in each layer are abutted without overlapping. Due to this overlapping method, as shown in FIGS. 11 and 12, only a part of the thickness does not become twice as large as that of the other part, so that there is no useless space between windings when the film is wound. Therefore, a reasonable winding diameter can be obtained.
【００２４】以上のように構成された延焼防止装置１
は、平常時には耐火スクリーン３が巻取装置２の巻取軸
６に巻き取られているので嵩張らず、どのような建物に
も設置しやすい。そして、火災が発生した時には、その
発生を火災検知器４が検知し、制御装置５が自動的に巻
取装置２の駆動装置７を作動させ、耐火スクリーン３を
巻取装置２から巻き解いて床１７付近まで垂らす。The fire spread prevention device 1 configured as described above
Since the refractory screen 3 is wound around the winding shaft 6 of the winding device 2 in normal times, it is not bulky and can be easily installed in any building. When a fire occurs, the fire detector 4 detects the occurrence of the fire, and the control device 5 automatically activates the driving device 7 of the winding device 2 to unwind the fireproof screen 3 from the winding device 2. Hang down to near floor 17.
【００２５】この耐火スクリーン３は、シリカクロス９
を略全面的に２層に重ねるとともにポリエチレンフィル
ム１０により融着して形成されているので、図９に２点
鎖線で示したような目ずれは起こさない。The refractory screen 3 is made of a silica cloth 9
Are formed by fusing almost all over two layers and fusing with the polyethylene film 10, so that misalignment as shown by a two-dot chain line in FIG. 9 does not occur.
【００２６】この耐火スクリーン３について、上記の建
築基準法により要求される防火性能及び遮煙性能を調べ
た。まず、耐火スクリーン３の両面についてそれぞれ空
気圧を加えて遮煙性能を調べたところ、両面における空
気圧の圧力差が２ｋｇ／ｍ2の場合における通気量が、
毎分０．２ｍ3 ／ｍ2 以下であった。The fireproof performance and the smoke barrier performance required by the Building Standard Law were examined for the fireproof screen 3. First, the air pressure was applied to both sides of the refractory screen 3 to examine the smoke shielding performance. The airflow rate when the pressure difference between the air pressures on both sides was 2 kg / m 2 was:
It was 0.2 m 3 / m 2 or less per minute.
【００２７】次に、耐火スクリーン３の両面についてそ
れぞれ６０分間、加熱温度が９２５℃に達するまで制御
しながら加熱して防火性能を調べたところ、ポリエチレ
ンフィルム１０は溶融してほぼ消失し、接合していたシ
リカクロス９同志は剥離した。しかし、加熱面の裏面側
に発炎を生じたり、隙間や加熱面の裏面側に達する亀裂
等を生じたり、加熱面の裏面側に発煙を生じたりするこ
とはなかった。また、加熱終了後、前記砂袋を落下させ
て衝撃を与えても破壊、剥離、脱落等を起こさなかっ
た。Next, both sides of the refractory screen 3 were heated for 60 minutes while controlling until the heating temperature reached 925 ° C., and the fire prevention performance was examined. As a result, the polyethylene film 10 melted and almost disappeared. Silica cloth 9 that had been peeled off. However, no flame was generated on the back surface side of the heating surface, no crack was generated reaching the back surface side of the heating surface, and no smoke was generated on the back surface side of the heating surface. Further, after the heating was completed, even if the sand bag was dropped to give an impact, no destruction, peeling or falling off occurred.
【００２８】よって、上記の防火性能の及び遮
煙性能の全てを満足した。しかも、この耐火スクリーン
３は、図８に示した従来例のように水を散水して濡らす
必要が無い。このため、従来例では必要であったスプリ
ンクラー及び水の配管が不要になり、設置の手間もコス
トも削減できる。よって、たとえ水の設備が無い建物や
水の配管が行き渡っていない部位であっても、簡単かつ
安価に設置することができる。Thus, all of the above fire prevention performance and smoke prevention performance were satisfied. Moreover, the refractory screen 3 does not need to be sprayed with water and wet unlike the conventional example shown in FIG. For this reason, the sprinkler and the water piping which were required in the conventional example become unnecessary, and the labor and cost for installation can be reduced. Therefore, even in a building without water facilities or a site where water pipes are not widely distributed, it can be installed easily and inexpensively.
【００２９】次に、図４及び図５は本発明の第二実施形
態を示している。本実施形態の耐火スクリーン３は、各
層において複数枚のシリカクロス９を縦方向に並べ、一
方の層の各シリカクロス９の幅の例えば半分と他方の層
の各シリカクロス９の幅の例えば半分とが千鳥状に交互
に重なるようにした点と、２層をステンレス鋼糸１１に
より縫合して接合した点とにおいて、第一実施形態と相
違するものである。本実施形態によっても第一実施形態
と同様の効果が得られる。Next, FIGS. 4 and 5 show a second embodiment of the present invention. In the refractory screen 3 of the present embodiment, a plurality of silica cloths 9 are arranged in each layer in the vertical direction, for example, half of the width of each silica cloth 9 of one layer and, for example, half of the width of each silica cloth 9 of the other layer. Are different from the first embodiment in that they are alternately overlapped in a staggered manner, and that two layers are stitched and joined by a stainless steel thread 11. According to this embodiment, the same effect as that of the first embodiment can be obtained.
【００３０】なお、本発明は前記実施形態例の構成に限
定されるものではなく、例えば次のように、発明の趣旨
から逸脱しない範囲で適宜変更して具体化できる。It should be noted that the present invention is not limited to the configuration of the above-described embodiment, but can be embodied with appropriate modifications without departing from the spirit of the invention, for example, as follows.
【００３１】（１）図６に示すように、各層において横
方向に並べたシリカクロス９の縁部１２同志の突き合わ
せ部に、別の短冊状のシリカクロス１３（又は他種の不
燃性織布）を重ねて接合し、補強すること。シリカクロ
ス９同志が剥離したときの防火性能及び遮煙性能も高ま
る。(1) As shown in FIG. 6, another strip-shaped silica cloth 13 (or another kind of non-combustible woven fabric) is attached to the abutting portion of the edges 12 of the silica cloth 9 arranged in the horizontal direction in each layer. ) To join and reinforce. The fire prevention performance and the smoke prevention performance when the silica cloths 9 peel off are also enhanced.
【００３２】（２）図７に示すように、各層において横
方向に並べたシリカクロス９の縁部１２同志をさらに重
ねて接合し、補強すること。シリカクロス９同志が剥離
したときの防火性能及び遮煙性能も高まる。(2) As shown in FIG. 7, the edges 12 of the silica cloth 9 arranged in the horizontal direction in each layer are further overlapped and joined to reinforce. The fire prevention performance and the smoke prevention performance when the silica cloths 9 peel off are also enhanced.
【００３３】（３）シリカクロス９が十分に大きい幅に
製造されたものであれば、前記実施形態のように複数枚
を横方向に並べる必要はなく、２枚を単純に重ねて接合
すればよい。(3) If the silica cloth 9 is manufactured to have a sufficiently large width, it is not necessary to arrange a plurality of sheets in the horizontal direction as in the above-described embodiment. Good.
【００３４】（４）異種の不燃性織布を２層以上に重ね
て接合すること。(4) Two or more layers of different types of noncombustible woven fabrics are joined together.
【００３５】（５）不燃性織布の間に通気抵抗の大きい
部材を介装して、遮煙性能を高めること。前記フィルム
は同部材を兼ねている。(5) Smoke-proof performance is improved by interposing a member having high ventilation resistance between noncombustible woven fabrics. The film also serves as the same member.
【００３６】（６）不燃性織布の間にアルミニウム箔等
の金属箔を介装して、防火性能及び遮煙性能を高めるこ
と。(6) A fireproof performance and a smoke-proof performance are improved by interposing a metal foil such as an aluminum foil between non-combustible woven fabrics.
【００３７】[0037]
【発明の効果】本発明の耐火スクリーンは、上記の通り
構成されているので、目ずれを防止でき、かつ、法定の
防火性能（特に衝撃試験）及び遮煙性能を満足できると
いう優れた効果を奏する。The fire-resistant screen of the present invention is constructed as described above, and thus has the excellent effects of preventing misalignment and satisfying the legal fire prevention performance (especially the impact test) and smoke prevention performance. Play.
【図１】本発明の第一実施形態に係る延焼防止装置の断
面図である。FIG. 1 is a sectional view of a fire spread prevention device according to a first embodiment of the present invention.
【図２】同延焼防止装置の耐火スクリーンの斜視図であ
る。FIG. 2 is a perspective view of a fireproof screen of the fire spread prevention device.
【図３】同耐火スクリーンの拡大断面図である。FIG. 3 is an enlarged sectional view of the refractory screen.
【図４】本発明の第二実施形態に係る耐火スクリーンの
斜視図である。FIG. 4 is a perspective view of a refractory screen according to a second embodiment of the present invention.
【図５】同耐火スクリーンの拡大断面図である。FIG. 5 is an enlarged sectional view of the refractory screen.
【図６】耐火スクリーンの変更例を示す斜視図である。FIG. 6 is a perspective view showing a modified example of the refractory screen.
【図７】耐火スクリーンの別の変更例を示す斜視図であ
る。FIG. 7 is a perspective view showing another modified example of the refractory screen.
【図８】従来の延焼防止装置の断面図である。FIG. 8 is a sectional view of a conventional fire spread prevention device.
【図９】同延焼防止装置の耐火スクリーンの正面図であ
る。FIG. 9 is a front view of a fireproof screen of the fire spread prevention device.
【図１０】同耐火スクリーンの拡大断面図である。FIG. 10 is an enlarged sectional view of the refractory screen.
【図１１】同耐火スクリーンの斜視図である。FIG. 11 is a perspective view of the refractory screen.
【図１２】同耐火スクリーンの巻き取り時の斜視図であ
る。FIG. 12 is a perspective view of the refractory screen when it is wound up.
１ 延焼防止装置 ２ 巻取装置 ３ 耐火スクリーン ４ 火災検知器 ５ 制御装置 ６ 巻取軸 ７ 駆動装置 ８ ヤーン ９ シリカクロス １０ ポリエチレンフィルム １１ ステンレス鋼糸 １２ 縁部 １３ シリカクロス １５ 天井 １６ 壁 １７ 床 DESCRIPTION OF SYMBOLS 1 Fire spread prevention device 2 Winding device 3 Fireproof screen 4 Fire detector 5 Control device 6 Winding shaft 7 Drive device 8 Yarn 9 Silica cloth 10 Polyethylene film 11 Stainless steel thread 12 Edge 13 Silica cloth 15 Ceiling 16 Wall 17 Floor
フロントページの続き (56)参考文献 特開 昭55−54966（ＪＰ，Ａ) 特開 平７−117185（ＪＰ，Ａ) 特開 昭53−98198（ＪＰ，Ａ) 特開 昭63−249775（ＪＰ，Ａ) 特開 平４−251999（ＪＰ，Ａ) 特開 昭63−25031（ＪＰ，Ａ) 実開 平５−95492（ＪＰ，Ｕ) 実開 平３−66739（ＪＰ，Ｕ) 実開 平５−16909（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) E06B 9/17 A62C 2/10 E04B 1/94 E06B 5/16 Continuation of the front page (56) References JP-A-55-54966 (JP, A) JP-A-7-117185 (JP, A) JP-A-53-98198 (JP, A) JP-A-63-249775 (JP) JP-A-4-251999 (JP, A) JP-A-63-25031 (JP, A) JP-A-5-95492 (JP, U) JP-A-3-66739 (JP, U) 5-16909 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) E06B 9/17 A62C 2/10 E04B 1/94 E06B 5/16
Claims (9)
装置に巻き取られ、火災発生時には前記巻取装置から巻
き解かれて垂らされる耐火スクリーンにおいて、無機繊
維を主体とするヤーンで製織した不燃性織布を２層以上
に重ねるとともに接合して目ずれを防止し、該不燃性織
布の間にアルミニウム箔等の金属箔を介装して防火性能
及び遮煙性能を高めたことを特徴とする耐火スクリー
ン。1. A fireproof screen that is wound up by a winding device installed on the ceiling of a building in normal times and unwound from the winding device when a fire occurs, and woven with a yarn mainly composed of inorganic fibers. The non-combustible woven fabric is laminated and joined in two or more layers to prevent misalignment,
Fireproof performance by interposing metal foil such as aluminum foil between cloths
A fire-resistant screen characterized by improved smoke shielding performance .
向又は縦方向に並べ、一方の層の各不燃性織布の幅の一
部と他方の層の各不燃性織布の幅の一部とが千鳥状に交
互に重なるようにした請求項１記載の耐火スクリーン。2. In each layer, a plurality of non-combustible woven fabrics are arranged in the horizontal or vertical direction, and a part of the width of each non-combustible woven fabric of one layer and the width of each non-combustible woven fabric of the other layer are set. 2. The refractory screen according to claim 1, wherein a part of the refractory screen alternately overlaps in a staggered manner.
不燃性織布の縁部同志を、重ねることなく突き合わせた
請求項２記載の耐火スクリーン。3. The fire-resistant screen according to claim 2, wherein the edges of the non-combustible woven fabric arranged in the horizontal or vertical direction in each layer are abutted without overlapping.
不燃性織布の縁部同志の突き合わせ部に別の短冊状の不
燃性織布を重ねて接合した請求項３記載の耐火スクリー
ン。4. The fire-resistant screen according to claim 3, wherein another strip-shaped non-combustible woven fabric is overlapped and joined to abutting portions of edges of the non-combustible woven fabric arranged in the horizontal or vertical direction in each layer.
不燃性織布の縁部同志を、さらに重ねて接合した請求項
２記載の耐火スクリーン。5. The fire-resistant screen according to claim 2, wherein the edges of the non-combustible woven fabric arranged in the horizontal or vertical direction in each layer are further overlapped and joined.
項１〜５のいずれか一項に記載の耐火スクリーン。6. The refractory screen according to claim 1, wherein the inorganic fibers are silica fibers.
熱溶融性材料による融着である請求項１〜６のいずれか
一項に記載の耐火スクリーン。7. The refractory screen according to claim 1, wherein the joining is fusion bonding between the non-combustible woven fabrics by a hot-melt material.
接着剤による接着である請求項１〜６のいずれか一項に
記載の耐火スクリーン。8. The refractory screen according to claim 1, wherein the joining is bonding by an adhesive between the respective noncombustible woven fabrics.
１〜６のいずれか一項に記載の耐火スクリーン。9. The refractory screen according to claim 1, wherein the joining is sewing with a thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15033097A JP3320635B2 (en) | 1997-05-22 | 1997-05-22 | Fireproof screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15033097A JP3320635B2 (en) | 1997-05-22 | 1997-05-22 | Fireproof screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10317846A JPH10317846A (en) | 1998-12-02 |
| JP3320635B2 true JP3320635B2 (en) | 2002-09-03 |
Family
ID=15494663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15033097A Expired - Lifetime JP3320635B2 (en) | 1997-05-22 | 1997-05-22 | Fireproof screen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3320635B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19716547C2 (en) * | 1996-05-22 | 2002-06-20 | Becker Antriebe Gmbh | Drive for smoke curtains, fire curtains or similar curtains |
| JP4890852B2 (en) * | 2005-12-22 | 2012-03-07 | 文化シヤッター株式会社 | Switchgear |
| JP5339575B2 (en) * | 2008-01-29 | 2013-11-13 | 大成建設株式会社 | Heat reduction device for living space |
| KR101069652B1 (en) * | 2009-07-30 | 2011-10-04 | 삼성중공업 주식회사 | Fireproofing apparatus for ship |
| CN102182255B (en) * | 2011-04-12 | 2016-02-24 | 河南城建学院 | Fireproof isolation belt for high-rise building |
| CN106593247A (en) * | 2016-12-21 | 2017-04-26 | 丁玉梅 | Induction type double-layer fireproof roller shutter |
| CN107386941B (en) * | 2017-08-10 | 2018-12-21 | 新富利消防工程有限公司 | A kind of fire resistance rolling shutter door |
| CN114277661B (en) * | 2022-01-25 | 2023-12-29 | 中国矿业大学 | Fireproof device of suspension bridge main cable clamp |
-
1997
- 1997-05-22 JP JP15033097A patent/JP3320635B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10317846A (en) | 1998-12-02 |
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