JP7496456B2 - Disaster prevention equipment sheet deployment device - Google Patents

Disaster prevention equipment sheet deployment device Download PDF

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JP7496456B2
JP7496456B2 JP2023083646A JP2023083646A JP7496456B2 JP 7496456 B2 JP7496456 B2 JP 7496456B2 JP 2023083646 A JP2023083646 A JP 2023083646A JP 2023083646 A JP2023083646 A JP 2023083646A JP 7496456 B2 JP7496456 B2 JP 7496456B2
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寛 梅原
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Hochiki Corp
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Description

本発明は、倉庫等の大空間で発生した火災を抑制消火する防災設備のシート展開装置に関する。 The present invention relates to a sheet deployment device for disaster prevention equipment that suppresses and extinguishes fires that occur in large spaces such as warehouses.

従来、監視区域で発生した火災を抑制消火する防災設備としては、火災感知器が火災を検出した場合に火災検出に連動して金属製の防火シャッターを閉鎖することにより防火区画を形成して火災の拡大を抑制する火災報知設備（特許文献１）や、火災による熱気流を受けてスプリンクラーヘッドが開放作動することで消火用水を散布して火災を抑制消火するスプリンクラー消火設備（特許文献２）が知られている。 Conventionally, disaster prevention equipment for suppressing and extinguishing fires that break out in monitored areas includes a fire alarm system (Patent Document 1) that closes metal fire shutters in response to a fire detector detecting a fire, forming a fire compartment to suppress the spread of the fire, and a sprinkler fire extinguishing system (Patent Document 2) that receives hot air currents from a fire and opens a sprinkler head to spray water to suppress and extinguish the fire.

また、機械式駐車場を対象とした防災カーテン消火システムが知られている（特許文献３）。この防災カーテン消火システムは、機械式駐車場の車両が入る駐車部を有する駐車ステージが多段に設けられ、各駐車部の天井の前部と両側部に防災カーテンが設けられ、火災感知器により駐車部の火災を検出すると防災カーテンが降下して前部と両側部を封鎖し、消火ノズルから消火ガスを噴出して消火するようにしている。 A disaster prevention curtain fire extinguishing system for mechanical parking lots is also known (Patent Document 3). This disaster prevention curtain fire extinguishing system is provided with multiple parking stages with parking areas for vehicles in the mechanical parking lot, disaster prevention curtains are provided on the front and both sides of the ceiling of each parking area, and when a fire in a parking area is detected by a fire detector, the disaster prevention curtains descend to seal off the front and both sides, and extinguish the fire by spraying extinguishing gas from a fire extinguishing nozzle.

また、従来の防災カーテンはモータ駆動により降下させ、火災が鎮火するとモータ駆動により巻き上げるようにしている。 In addition, conventional disaster prevention curtains are driven down by a motor and then rolled up by a motor once the fire has been extinguished.

特開２０１７－２１１７８０号公報JP 2017-211780 A 特開２０１５－１４６８４０号公報JP 2015-146840 A 特開平５－１５４２１６号公報Japanese Patent Application Laid-Open No. 5-154216 実開昭５７－２０４３９２号公報Japanese Utility Model Application Publication No. 57-204392

しかしながら、このような従来の防災設備にあっては、倉庫等のように広い空間をもつ施設に適用する場合に問題があった。 However, such conventional disaster prevention equipment had problems when applied to facilities with large spaces such as warehouses.

例えば金属製の防火シャッターは遮熱性が十分ではなく、設備構造が大がかりであり、火災後の改修等も容易ではない。 For example, metal fire shutters do not have sufficient heat insulation, and the equipment structure is large, so repairs after a fire are not easy.

また、従来、防護区画は部屋やフロアの配置構成に合わせて、比較的広い面積について形成されるものであるが、規模の大きな大倉庫等では、大空間を構築する構造上の特徴や倉庫内に配置したラック棚等に物資を収納して出し入れする物流上の特徴から、従来のような防火シャッターを使用して、細かく防火区画を形成することは現実的ではない。 Conventionally, protected areas have been created over a relatively large area in accordance with the layout of rooms and floors, but in large warehouses and the like, due to the structural characteristics of constructing a large space and the logistical characteristics of storing and retrieving materials on racks and other equipment placed within the warehouse, it is not realistic to create detailed fire compartments using conventional fire shutters.

また、倉庫のように高天井である場合、例えばスプリンクラー消火設備による消火用水は落下する途中で飛散して単位面積当たりの散布量が低下して散水効率が低く、一方では広範囲に散水が及び水損が拡大する問題がある。 In addition, in buildings with high ceilings, such as warehouses, water used for fire extinguishing using sprinkler fire extinguishing equipment will splash as it falls, reducing the amount of water sprayed per unit area and resulting in low water spray efficiency, while at the same time spraying water over a wide area, causing extensive water damage.

また、従来の防災カーテン消火システムは、機械式駐車場の駐車部のように、消火対象区画が支柱構造により上下左右に仕切られた区画構造の場合には問題ないが、倉庫のように仕切り構造を持たない大空間に適用することは困難である。 In addition, while conventional disaster prevention curtain fire extinguishing systems are no problem when the area to be extinguished is a compartment structure that is divided into upper, lower, left and right sections by a support structure, such as the parking section of a mechanical parking lot, it is difficult to apply them to large spaces that do not have a partition structure, such as warehouses.

また、倉庫のような大空間にあっては、仮に仕切構造があったとしても、防災カーテンは１０メートルを超える高さから降下させて対象区画を封鎖させる必要があり、モータ駆動によるカーテンの降下では、カーテンが完全に降下するまでに時間がかかり、その間に火災が拡大し、十分な火災の抑制消火が期待できない問題がある。 Furthermore, in a large space such as a warehouse, even if there is a partition structure, a disaster prevention curtain needs to be lowered from a height of more than 10 meters to seal off the target area, and if the curtain is lowered by a motor, it takes time for the curtain to descend completely, during which time the fire can spread, creating the problem that it is not possible to sufficiently suppress and extinguish the fire.

本発明は、倉庫等の天井が高く、さらに構造上、空間面積の大きい施設を対象に、確実に火災の抑制消火を可能とする防災設備のシート展開装置を提供することを目的とする。 The present invention aims to provide a sheet deployment device for disaster prevention equipment that can reliably suppress and extinguish fires in facilities such as warehouses that have high ceilings and large structural spaces.

（防災設備のシート展開装置）
本発明は、防護空間の火災を抑制消火する防災設備のシート展開装置であって、
防火性、耐火性、耐熱性又は遮煙性を有する布状体を用いた仕切シートと、
防護空間の上方側の所定位置に設置され、仕切シートの一端側が固定された本体手段と、
一端が本体手段に固定され、通常時に、仕切シートの他端側を含め仕切シートを非展開状態で本体手段側に保持する保持部を有する保持手段と、
防護空間の火災時に、保持手段を加熱することにより保持部を溶断させて仕切シートの保持を解除して仕切シートの他端側を下方へ落下させることにより、当該仕切シートを防護空間内の火災発生場所を含む任意の対象区画を仕切るように展開状態とする展開手段と、
を備えたことを特徴とする。 (Sheet deployment device for disaster prevention equipment)
The present invention relates to a sheet deployment device for disaster prevention equipment that suppresses and extinguishes a fire in a protected space,
A partition sheet using a cloth-like material having fire resistance, fire resistance, heat resistance or smoke barrier properties;
a main body means installed at a predetermined position above the protective space and having one end of the partition sheet fixed thereto;
a holding means having a holding portion, one end of which is fixed to the main body means and which normally holds the partition sheet, including the other end side of the partition sheet, in a non-expanded state on the main body means side;
an unfolding means for unfolding the partition sheet so as to partition any target section including the location of the fire in the protected space by heating the holding means to melt the holding portion and release the partition sheet from the holding portion and drop the other end of the partition sheet downward in the event of a fire in the protected space;
The present invention is characterized by comprising:

（仕切シートの保持状態）
保持手段は、仕切シートをロール状に巻かれた状態又は蛇腹状に折り畳まれた状態で本体手段に保持する。 (Divider sheet holding state)
The holding means holds the partition sheet in a rolled state or folded in an accordion-like manner on the main body means.

（仕切シートのシート長）
仕切シートは、本体手段の設置高さよりも長いシート長を有する。 (Partition sheet length)
The partition sheet has a sheet length longer than the installation height of the main body means.

（シートの冷却剤散布）
更に、展開手段により展開した仕切シートに冷却剤として冷却水を散布する冷却剤散布手段が設けられる。 (Coolant spraying on the seat)
Further, a coolant spraying means is provided for spraying cooling water as a coolant onto the partition sheet deployed by the deployment means.

（シートの散布面）
冷却剤散布手段は、展開手段により展開された仕切シートの片面又は両面に冷却剤を散布する。 (Scattering surface of sheet)
The coolant spraying means sprays a coolant onto one or both sides of the partition sheet deployed by the deployment means.

（防災設備のシート展開装置２）
また、本発明は、防護空間の火災を抑制消火する防災設備のシート展開装置であって、
防火性、耐火性、耐熱性又は遮煙性を有する布状体を用いた仕切シートと、
防護空間の所定位置に設置され、仕切シートの一端が固定された本体手段と、
非展開状態の仕切シートの下側を通って両端が本体手段に固定される、樹脂テープが用いられた保持手段と、
防護空間の火災時に、保持手段を横切る位置に配置されたヒータの通電加熱により、保持手段を溶断して仕切シートの他端を落下させ、当該仕切シートを防護空間内の火災発生場所を含む任意の対象区画を仕切るように展開状態とする展開手段と、
を備えたことを特徴とする。 (Disaster prevention equipment sheet deployment device 2)
The present invention also provides a sheet deployment device for disaster prevention equipment that suppresses and extinguishes a fire in a protected space,
A partition sheet using a cloth-like material having fire resistance, fire resistance, heat resistance or smoke barrier properties;
A main body means is installed at a predetermined position in the protected space and has one end of the partition sheet fixed thereto;
A holding means made of a resin tape that passes under the partition sheet in a non-deployed state and has both ends fixed to the main body means;
an expansion means for expanding the partition sheet so that, in the event of a fire in the protected space, the partition sheet melts down by applying electrical current to a heater disposed across the partition sheet, causing the other end of the partition sheet to drop, and the partition sheet is expanded so as to partition any target section including the location of the fire in the protected space;
The present invention is characterized by comprising:

（基本的な効果）
本発明は、防護空間の火災を抑制消火する防災設備のシート展開装置であって、防火性、耐火性、耐熱性又は遮煙性を有する布状体を用いた仕切シートと、防護空間の上方側の所定位置に設置され、仕切シートの一端側が固定された本体手段と、一端が前記本体手段に固定され、通常時に、前記仕切シートの他端側を含め仕切シートを非展開状態で本体手段側に保持する保持部を有する保持手段と、防護空間の火災時に、保持手段を加熱することにより前記保持部を溶断させて前記仕切シートの保持を解除して仕切シートの他端側を下方へ落下させ、当該仕切シートを防護空間内の火災発生場所を含む任意の対象区画を仕切るように展開状態とする展開手段と、を備えたため、倉庫等の広い防護空間で火災が発生したときに、火災発生場所を含む対象区画を周囲から仕切るように仕切シートを展開することで防護空間の中に仕切区画が形成され、遮炎、遮煙、遮熱により延焼防止、煙拡散防止の効果が期待できる。 (Basic Effects)
The present invention is a sheet deployment device for disaster prevention equipment that suppresses and extinguishes a fire in a protected space, comprising: a partition sheet made of a cloth-like material having fire retardancy, fire resistance, heat resistance or smoke insulation; main body means that is installed at a predetermined position on the upper side of the protected space and has one end side of the partition sheet fixed thereto; holding means having one end fixed to the main body means and having a holding part that holds the partition sheet, including the other end side of the partition sheet, in an undeployed state on the main body means side under normal circumstances; and deployment means that, in the event of a fire in the protected space, heats the holding means to melt and cut off the holding part, thereby releasing the hold of the partition sheet and allowing the other end side of the partition sheet to fall downward, and deploys the partition sheet in an deployed state so as to partition any target section including the location of the fire in the protected space. Therefore, when a fire breaks out in a large protected space such as a warehouse, a partition section is formed within the protected space by deploying the partition sheet to separate the target section including the location of the fire from the surrounding area, and the effects of preventing the fire from spreading and the smoke from spreading due to the flame, smoke and heat insulation can be expected.

また、本発明は、防護空間の火災を抑制消火する防災設備のシート展開装置であって、防火性、耐火性、耐熱性又は遮煙性を有する布状体を用いた仕切シートと、防護空間の所定位置に設置され、仕切シートの一端が固定された本体手段と、非展開状態の仕切シートの下側を通って両端が本体手段に固定される、樹脂テープが用いられた保持手段と、防護空間の火災時に、保持手段を横切る位置に配置されたヒータの通電加熱により、保持手段を溶断して仕切シートの他端を落下させ、当該仕切シートを防護空間内の火災発生場所を含む任意の対象区画を仕切るように展開状態とする展開手段とを備えたため、仕切シートの展開で仕切られた仕切区画の中に消火用水又は消火泡等の消火剤を散布することで、散布した消火剤が周囲に広がることがなく、火災発生場所に対し集中した散布を可能として確実に火災を抑制消火でき、消火効率が向上すると共に、周囲に対する消火剤の拡散が抑制、防止され、水損等を最小限に抑えることができる。 The present invention is also a sheet deployment device for disaster prevention equipment that suppresses and extinguishes fires in a protected space, comprising a partition sheet made of a fabric-like material having fireproofing, fire resistance, heat resistance, or smokeproofing properties, a main body means that is installed at a predetermined position in the protected space and has one end of the partition sheet fixed thereto, a holding means made of resin tape that passes under the partition sheet in a non-deployed state and has both ends fixed to the main body means, and a deployment means that, in the event of a fire in the protected space, melts the holding means by applying electrical heat from a heater arranged at a position across the holding means, causing the other end of the partition sheet to fall, and deploys the partition sheet to a deployed state so as to partition any target compartment including the location of the fire in the protected space. Therefore, by spraying extinguishing water or extinguishing foam or other extinguishing agent into the partition compartment separated by the deployment of the partition sheet, the sprayed extinguishing agent does not spread to the surroundings, and it is possible to spray it in a concentrated manner at the location of the fire, thereby reliably suppressing and extinguishing the fire, improving fire extinguishing efficiency, suppressing and preventing the spread of the extinguishing agent to the surroundings, and minimizing water damage, etc.

（仕切シートの保持状態による効果）
また、保持手段は、仕切シートをロール状に巻かれた状態又は蛇腹状に折り畳まれた状態で本体手段に保持するようにしたため、シート展開装置は倉庫等の空間面積の大きな防護空間の天井側に配置されるが、通常時、仕切シートはコンパクトに保持されているため、防護空間の設置スペースは少なくて済む。 (Effect of the partition sheet holding state)
In addition, since the holding means holds the partition sheet in a rolled up state or folded accordion-like state on the main body means, the sheet deployment device is placed on the ceiling side of a protected space with a large spatial area, such as a warehouse, but since the partition sheet is normally held compactly, less installation space is required in the protected space.

また、火災時には、ロール状又は蛇腹状の状態で保持された仕切シートの片端の保持を解除することで、自重により確実に落下して上下に確実に展開することができ、従来のモータ駆動により展開する防災カーテン等に比べ、仕切シートの展開高さが倉庫のように１０メートルを超えた場合にも、シートの展開速度が速く、短時間で展開して火災に対処できると共に、複雑な装置や制御を要することなく、展開することができる。 In addition, in the event of a fire, by releasing one end of the partition sheet, which is held in a rolled or accordion-like state, the sheet can fall reliably under its own weight and deploy reliably up and down. Compared to conventional disaster prevention curtains that deploy using motor drive, the sheet can be deployed quickly and in a short time to deal with a fire, even when the deployed height of the partition sheet exceeds 10 meters, such as in a warehouse. It can be deployed without the need for complicated devices or controls.

（仕切シートのシート長による効果）
また、仕切シートは、本体手段の設置高さよりも長いシート長を有するようにしたため、従来の鋼製の防火シャッターの場合、床に障害物があると床まで降下せず、すき間が空くので消火、延焼防止等が低減してしまうが、布状態である仕切シートは柔軟性があるので、長めに採寸しておくとすき間の発生を抑制することができ、消火、延焼防止等の低減度合いが抑制できる。 (Effect of the length of the partition sheet)
In addition, the partition sheet has a sheet length that is longer than the installation height of the main body means.With conventional steel fire shutters, if there is an obstacle on the floor, the shutter will not descend to the floor, creating a gap that reduces fire extinguishing and fire spread prevention.However, since the partition sheet is in a cloth state and is flexible, measuring it to be longer can prevent gaps from occurring, thereby reducing the degree to which fire extinguishing and fire spread prevention are reduced.

（シートの冷却剤散布による効果）
また、展開手段により展開した仕切シートに冷却剤を散布する冷却剤散布手段が設けられ、冷却剤散布手段は、展開手段により展開された仕切シートの片面又は両面に冷却剤を散布するものであり、更に、冷却剤散布手段は冷却剤として冷却水を散布するようにしたため、散布手段により仕切シートに冷却水を散布して濡らすことで、仕切シートの遮炎性、遮煙性、遮熱性をさらに高めることができる。また、冷却水散布手段は、必要に応じて仕切シートの片側又は両側に冷却水を散布するようにしたため、例えば、仕切シートの火災発生側には例えば消火泡が散布されることから、この場合には火災発生側に対し反対側となる外側シート面に冷却水を散布することで、シート内側に散布された消火泡を冷却水の散布により消失させることなく、外側シート面に対する冷却水の散布により仕切シートの火災に対する遮炎性、遮煙性、遮熱性を高めることができる。なお、ここでは対象区画の中心に向かう面側を内側、その反対面側を外側としている。 (Effect of spraying coolant on the seat)
In addition, a coolant spraying means is provided for spraying a coolant on the partition sheet deployed by the deployment means, and the coolant spraying means sprays the coolant on one or both sides of the partition sheet deployed by the deployment means. Furthermore, the coolant spraying means sprays cooling water as a coolant, so that the partition sheet is wetted by spraying the cooling water with the spraying means, thereby further improving the fireproofing, smokeproofing, and heatproofing properties of the partition sheet. In addition, the cooling water spraying means sprays cooling water on one or both sides of the partition sheet as necessary, so that, for example, fire-extinguishing foam is sprayed on the fire outbreak side of the partition sheet, and in this case, by spraying cooling water on the outer sheet surface opposite to the fire outbreak side, the fire-extinguishing foam sprayed on the inside of the sheet is not lost by the spraying of cooling water, and the fireproofing, smokeproofing, and heatproofing properties of the partition sheet against fire can be improved by spraying cooling water on the outer sheet surface. Note that here, the side facing the center of the target compartment is the inside, and the opposite side is the outside.

通常時のシート展開装置の実施形態を示した説明図FIG. 2 is an explanatory diagram illustrating an embodiment of a sheet spreading device in a normal state; シート展開装置による仕切シートの展開状態を示した説明図FIG. 13 is an explanatory diagram showing the state in which the partition sheet is spread by the sheet spreading device. 防災設備に対するシート展開装置の設置状態を示した説明図An explanatory diagram showing the installation state of a sheet deployment device for disaster prevention equipment. 火災発生場所を囲むように仕切シートを展開するシート展開装置の動作を示した説明図An explanatory diagram showing the operation of a sheet deployment device that deploys a partition sheet to surround the location of a fire. 図４の仕切シートの展開に対する冷却水の散布を平面で示した説明図FIG. 5 is a plan view illustrating the spraying of cooling water onto the partition sheet of FIG. 4 .

［防災設備のシート展開装置］
図１は通常時のシート展開装置の実施形態を示した説明図であり、図１（Ａ）に正面を示し、図１（Ｂ）に側面を示し、図１（Ｃ）に下から見た平面を示す。図２はシート展開装置による仕切シートの展開状態を示した説明図であり、図２（Ａ）に正面を示し、図２（Ｂ）に側面を示す。 [Disaster prevention equipment sheet deployment device]
Fig. 1 is an explanatory diagram showing an embodiment of a sheet spreading device in a normal state, Fig. 1(A) shows a front view, Fig. 1(B) shows a side view, and Fig. 1(C) shows a plan view seen from below. Fig. 2 is an explanatory diagram showing a state in which a partition sheet is spread by the sheet spreading device, Fig. 2(A) shows a front view, and Fig. 2(B) shows a side view.

［実施形態の基本的な概念］
本実施形態のシート展開装置１０は、倉庫等の空間で発生した火災を消火抑制するために設置されるものであり、防火性、耐火性、耐熱性又は遮煙性を有する布状体を用いた仕切手段である仕切シート１４を有し、防護空間の天井側等の所定位置に固定される本体手段である装置本体１２に、仕切シート１４の一端を固定手段である固定部材１５により固定し、また、仕切シート１４を保持手段である保持部材１６によりロール状に巻かれるか又は蛇腹状に折り畳まれた非展開状態で保持し、防護空間の火災時に、展開手段であるラッチ解除作動部１８により仕切シート１４の保持を解除して他端側を落下させ、防護空間内の火災発生場所を含む任意の対象区画を仕切るように展開させるようにしたため、防護空間で火災が発生したときに、火災発生場所を含む対象区画を周囲から仕切るように仕切シート１４を展開することで防護空間の中に仕切区画が形成され、遮炎、遮煙、遮熱により延焼防止、煙拡散防止の効果が期待できる、というものである。 [Basic Concept of the Embodiment]
The sheet deployment device 10 of the present embodiment is installed to suppress and extinguish a fire that breaks out in a space such as a warehouse, and has a partition sheet 14, which is a partition means made of a cloth-like material having fireproofing, fire resistance, heat resistance, or smoke insulation properties, and one end of the partition sheet 14 is fixed to an apparatus main body 12, which is a main body means fixed to a predetermined position such as the ceiling side of a protected space, by a fixing member 15, which is a fixing means, and the partition sheet 14 is held in an undeployed state in which it is wound into a roll or folded into an accordion-like shape by a holding member 16, which is a holding means, and in the event of a fire in the protected space, the partition sheet 14 is released from its hold by a latch release operating unit 18, which is a deployment means, to drop the other end side, and the partition sheet 14 is deployed to partition any target section including the location of the fire in the protected space. Therefore, when a fire breaks out in the protected space, the partition sheet 14 is deployed to separate the target section including the location of the fire from the surrounding area, thereby forming a partition section within the protected space, and the effects of preventing the fire from spreading and the smoke from spreading can be expected by blocking flames, smoke, and heat.

また、仕切シート１４の展開で仕切られた仕切区画の中に消火用水又は消火泡等の消火剤を散布することで、散布した消火剤が周囲に飛散することを抑制し、火災発生場所に対し集中した散布を可能として確実に火災を抑制消火でき、また、周囲に対する消火剤の飛散が抑制・防止され、水損等を最小限に抑えることができる。 In addition, by spraying fire extinguishing water or fire extinguishing foam or other fire extinguishing agent into the partitioned compartment separated by the deployment of the partition sheet 14, the sprayed fire extinguishing agent is prevented from scattering to the surrounding area, allowing for concentrated spraying at the location where the fire started, ensuring that the fire is contained and extinguished. Also, the spraying of fire extinguishing agent to the surrounding area is suppressed and prevented, minimizing water damage, etc.

また、火災時に展開した仕切シート１４に冷却剤散布手段である冷却剤散布ヘッド２８から冷却剤を散布して濡らすことで、仕切シート１４の遮炎性、遮煙性、遮熱性をさらに高めることができる。 In addition, by spraying coolant from the coolant spray head 28, which is a coolant spraying means, onto the partition sheet 14 deployed in the event of a fire to wet the sheet, the flame-proofing, smoke-proofing and heat-proofing properties of the partition sheet 14 can be further improved.

［シート展開装置］
図１に示すように、シート展開装置１０は、本体手段である装置本体１２が防護空間の天井面側に固定されており、装置本体１２に仕切手段である仕切シート１４の一端を固定手段である固定部材１５により固定し、仕切シート１４はロール状に巻き回された非展開状態で装置本体１２の下側にワイヤ又はロープを用いた保持手段である保持部材１６により左右２箇所で吊下げ状態に保持されている。 [Sheet unfolding device]
As shown in FIG. 1, the sheet deployment device 10 has a device main body 12, which is the main body means, fixed to the ceiling surface side of the protected space, and one end of a partition sheet 14, which is the partition means, is fixed to the device main body 12 by a fixing member 15, which is the fixing means. The partition sheet 14 is in an undeployed state wound up in a roll shape and is held in a suspended state at two points, left and right, below the device main body 12 by a holding member 16, which is a holding means using a wire or rope.

なお、仕切シート１４の非展開状態としては、仕切シート１４を回転軸に巻き、火災時に回転軸のラッチを解除して仕切シート１４を自重で落下展開させる構造としてもよい。また、シート展開装置１０の仕切シート１４を蛇腹状に折り畳んだ非展開状態で保持し、火災時に保持を解除して落下展開させる構造としてもよい。 The partition sheet 14 may be wound around a rotating shaft in the non-deployed state, and the latch on the rotating shaft may be released in the event of a fire to allow the partition sheet 14 to fall and deploy under its own weight. Alternatively, the partition sheet 14 of the sheet deployment device 10 may be folded bellows-like in the non-deployed state, and released in the event of a fire to allow the partition sheet 14 to fall and deploy.

仕切シート１４は例えば１２００℃の高熱に耐えることができ、耐火シート、耐火カーテン、耐火幕等とも呼ばれるシートである。なお、仕切シート１４としては、１２００℃以下であっても、例えば数百度以上の耐熱性能を持つものであれば良い。 The partition sheet 14 can withstand high heat, for example, 1200°C, and is also called a fireproof sheet, fireproof curtain, fireproof screen, etc. Note that the partition sheet 14 may be any sheet that has heat resistance of several hundred degrees or more, even if it is below 1200°C.

また、仕切シート１４の重量は、例えば、幅５メートル、長さ１０メートルのサイズとすると３５キログラム程度であり、同じサイズの鋼製シャッターは６００キログラムを超えることから、１／２０程度で済み、防護空間に対するシート展開装置１０の設置が容易にできる。 The weight of the partition sheet 14 is approximately 35 kilograms for a size of, for example, 5 meters wide and 10 meters long. A steel shutter of the same size weighs more than 600 kilograms, so this is only about 1/20 of the weight, making it easy to install the sheet deployment device 10 in the protected space.

ワイヤ又はロープを用いた保持部材１６は一端が装置本体１２に固定され、他端はロール状に巻かれた仕切シート１４の下側を通して装置本体１２に設けられた展開手段であるラッチ解除作動部１８に着脱自在に保持され、抜け止めされている。ラッチ解除作動部１８は、外部からの作動信号による例えばソレノイドの通電によりラッチを解除する。 One end of the retaining member 16, which is made of a wire or rope, is fixed to the device body 12, and the other end is detachably held by the latch release operating unit 18, which is a deployment means provided on the device body 12, through the underside of the rolled partition sheet 14, and is prevented from falling off. The latch release operating unit 18 releases the latch by, for example, passing electricity through a solenoid in response to an operating signal from the outside.

シート展開装置１０は、火災時に外部からの作動信号によりラッチ解除作動部１８を作動すると、仕切シート１４の一端が装置本体１２に固定された状態で保持部材１６による仕切シート１４の他端の保持が解除され、図２に示すように、自重により落下して下方に展開される。 When the sheet deployment device 10 activates the latch release actuator 18 in response to an external activation signal in the event of a fire, one end of the partition sheet 14 is fixed to the device body 12, while the other end of the partition sheet 14 is released from the holding member 16, and the partition sheet 14 falls under its own weight and deploys downward, as shown in Figure 2.

ラッチ解除作動部１８により保持部材１６の保持を解除したとき、３５キログラム程度の重量を持つ仕切シート１４が片側を固定した状態で落下して展開することから、従来のモータ駆動による仕切シート１４の巻き降ろしに比べ、速やかに落下して上下に展開させることができる。 When the latch release operating unit 18 releases the retention member 16, the partition sheet 14, which weighs approximately 35 kilograms, drops and unfolds with one side fixed, allowing it to fall and unfold up and down more quickly than the conventional method of unrolling the partition sheet 14 using motor drive.

ここで、図２のように展開した仕切シート１４の長さは、防護空間におけるシート展開装置１０の設置高さよりも長めに採寸して余長をとるようにする。これは防護空間の下面となる床面に荷物や設備機器等の機材が置かれている場合があり、仕切シート１４を落下展開したときに床面に機材があってもシートの弛みにより隙間ができにくいようにするためである。 The length of the partition sheet 14 deployed as shown in Figure 2 is measured to be longer than the installation height of the sheet deployment device 10 in the protected space to allow for some extra length. This is because there may be luggage, equipment, and other materials placed on the floor under the protected space, and when the partition sheet 14 is dropped and deployed, even if there is equipment on the floor, the sheet will sag to prevent gaps from forming.

また、シート展開装置１０には、火災時に展開した仕切シート１４に冷却剤として例えば冷却水を散布する冷却剤散布手段である冷却剤散布ヘッド２８が設けられる。冷却剤散布ヘッド２８は、装置本体１２の両側に取り出された配管２９に設けられており、これに装置本体１２内を通して冷却配管４４が開閉弁４６を介して接続され、火災時に冷却剤供給設備４０（後述）から冷却水の供給を受けて、図２に一点鎖線で示すように、展開した仕切シート１４の片面、例えば、図２（Ｂ）で仕切シート１４の右側が火災発生場所（内側）であるとすると、火災発生側に対し反対側となる外側シート面（図示の左側シート面）に冷却剤として冷却水を散布する。 The sheet deployment device 10 is also provided with a coolant spray head 28, which is a coolant spraying means for spraying, for example, cooling water as a coolant onto the deployed partition sheet 14 in the event of a fire. The coolant spray head 28 is provided on piping 29 extending out on both sides of the device body 12, and a cooling piping 44 is connected to the coolant spray head 28 through the device body 12 via an on-off valve 46. In the event of a fire, the coolant spray head 28 receives a supply of cooling water from a coolant supply facility 40 (described below), and sprays the cooling water as a coolant onto one side of the deployed partition sheet 14, as shown by the dashed dotted line in Figure 2, for example, onto the outer sheet surface (the left sheet surface in the figure), which is the opposite side to the side where the fire occurred, assuming that the right side of the partition sheet 14 in Figure 2(B) is the location of the fire (inside).

冷却剤散布ヘッド２８から散布された冷却水は、展開した仕切シート１４の外側シート面を略均一に濡らしつつ、外側シート面に沿って流れ落ちる。仕切シート１４は布織目の表面に樹脂等をコーティングしたものとコーティングしていないものがあり、非コーティングの仕切シート１４を使用した場合、冷却剤散布ヘッド２８から散布された冷却水は、展開した仕切シート１４のシート面を濡らし、仕切シート１４の布織目に冷却水が含浸して隙間が閉鎖され、遮煙性が向上し、仕切シート１４の外側への煙の拡散が抑制される。また、散布水の含浸と外側シート面に沿った流れ落ちにより、仕切シート１４が冷却され、遮炎性と遮熱性が高められる。もちろん、コーティングしたものでも所定の効果をえることができる。 The cooling water sprayed from the coolant spray head 28 wets the outer sheet surface of the unfolded partition sheet 14 almost uniformly and flows down along the outer sheet surface. Partition sheets 14 are available in two types: those with a resin coating on the surface of the fabric weave, and those without. When an uncoated partition sheet 14 is used, the cooling water sprayed from the coolant spray head 28 wets the sheet surface of the unfolded partition sheet 14, and the cooling water permeates the fabric weave of the partition sheet 14, closing gaps, improving smoke insulation, and suppressing the spread of smoke to the outside of the partition sheet 14. In addition, the partition sheet 14 is cooled by the impregnation of the sprayed water and the flow down along the outer sheet surface, improving its fireproofing and heat insulation properties. Of course, the desired effect can also be obtained with a coated sheet.

ここで、冷却剤散布ヘッド２８から展開した仕切シート１４の火災発生側の反対側となる外側シート面に冷却水を散布している理由は、仕切シート１４の展開で仕切られた対象区画内には消火ヘッド２６（後述）から消火泡を散布しており、散布された消火泡に冷却剤散布ヘッド２８からの冷却水がかかると消火泡が消失することから、消火泡の消失を防ぐためである。 The reason why cooling water is sprayed on the outer sheet surface of the partition sheet 14 deployed from the coolant spray head 28, which is opposite the side where the fire has started, is that extinguishing foam is sprayed from the fire extinguishing head 26 (described below) within the target compartment partitioned off by the deployment of the partition sheet 14, and if the sprayed extinguishing foam is splashed with cooling water from the coolant spray head 28, the extinguishing foam will disappear, so this is to prevent the extinguishing foam from disappearing.

なお、仕切シート１４の展開で仕切られた火災発生場所を含む仕切区画の中に消火用水を散布する場合には、内側シート面に冷却水を散布するようにしても良いし、シート面の内側と外側の両方に冷却水を散布するようにしても良い。 When spraying fire extinguishing water into a partitioned area that includes the location of the fire, separated by the deployment of the partition sheet 14, cooling water may be sprayed onto the inner sheet surface, or onto both the inner and outer sheet surfaces.

なお、本実施形態は、シート展開装置１０の両側に冷却剤散布ヘッド２８を一台ずつ設けているが、シート幅に応じて複数の冷却剤散布ヘッド２８を並べて配置するようにしても良い。また、冷却剤散布ヘッド２８に対する冷却配管４４は装置本体１２内を通さずに外側に配置しても良い。また、開閉弁４６は外付けではなく、装置本体１２内に組み込んだ構造としても良い。 In this embodiment, one coolant spray head 28 is provided on each side of the sheet spreading device 10, but multiple coolant spray heads 28 may be arranged side by side depending on the sheet width. Also, the cooling pipes 44 for the coolant spray heads 28 may be arranged on the outside without passing through the device main body 12. Also, the opening and closing valve 46 may be built into the device main body 12 instead of being external.

また、シート展開装置１０における仕切シート１４の展開手段による保持解除は、火災時に外部からの作動信号による以外に、火災による熱を受けたヒューズの溶断により保持を解除するヒュージブルリンクを用いた感熱作動型としてもよい。また、用途、規模、形状により各方式を組み合わせた複合型としても良い。 In addition, the release of the partition sheet 14 by the deployment means in the sheet deployment device 10 can be achieved not only by an external activation signal in the event of a fire, but also by a heat-sensitive activation type using a fusible link that releases the hold by blowing a fuse exposed to heat from the fire. Also, a composite type that combines each method depending on the application, scale, and shape can be used.

更に、保持手段である保持部材１６と展開手段であるラッチ解除作動部１８は、これに限定されず、適宜の方法を採用し得る。例えば、強靭で幅広の樹脂テープを保持手段とし、樹脂テープにより装置本体１２に対しロール状に巻き回した仕切シート１４の下側を通して吊り下げ保持し、樹脂テープには、展開手段として、樹脂テープを横切る位置にヒータ線を埋め込んでおき、火災時には、ヒータ線の通電加熱により樹脂テープを溶断することで、仕切シート１４の保持を解除して落下させ、これにより上下に展開させても良い。 Furthermore, the holding member 16 as the holding means and the latch release operating unit 18 as the deployment means are not limited to these, and any suitable method can be adopted. For example, a strong and wide resin tape can be used as the holding means, and the partition sheet 14 wound in a roll shape on the device main body 12 can be hung and held by the resin tape through the underside of the resin tape, and a heater wire can be embedded in the resin tape as the deployment means at a position across the resin tape, and in the event of a fire, the resin tape can be melted by passing an electric current through the heater wire, releasing the hold of the partition sheet 14 and causing it to fall, thereby deploying it vertically.

［防護空間に対するシート展開装置の設置］
図３は防災設備に対するシート展開装置の設置状態を示した説明図である。図３に示すように、大型倉庫等の防護空間２２を対象に本実施形態のシート展開装置１０を用いた防災設備２０が設置される。防護空間２２の天井側となる上部平面に、仕切シート１４を火災時に展開する１２台のシート展開装置１０を格子状に配置している。なお、シート展開装置１０は防護空間２２の天井面以外に、例えば天井面よりやや下側の空間位置に設置することも可能である。 [Installation of a sheet deployment device for a protected space]
Fig. 3 is an explanatory diagram showing the installation state of the sheet deployment device in the disaster prevention facility. As shown in Fig. 3, the disaster prevention facility 20 using the sheet deployment device 10 of this embodiment is installed for a protected space 22 such as a large warehouse. Twelve sheet deployment devices 10 that deploy the partition sheet 14 in the event of a fire are arranged in a lattice pattern on the upper flat surface on the ceiling side of the protected space 22. The sheet deployment devices 10 can be installed not only on the ceiling surface of the protected space 22, but also in a space position slightly below the ceiling surface, for example.

ここで、シート展開装置１０の格子状の配置に対応した防護空間２２の点線で分けられた区画を、シート展開装置１０による仕切シート１４の展開により仕切られる対象区画Ａ１～Ａ９とする。また、防護空間２２における対象区画のサイズと区画数は、シート展開装置１０により展開する仕切シート１４のサイズに応じて任意に定められる。 Here, the sections divided by dotted lines in the protective space 22 corresponding to the grid-like arrangement of the sheet deployment device 10 are defined as target sections A1 to A9 that are separated by the deployment of the partition sheet 14 by the sheet deployment device 10. In addition, the size and number of target sections in the protective space 22 are determined arbitrarily according to the size of the partition sheet 14 deployed by the sheet deployment device 10.

シート展開装置１０に対応してシート展開制御装置３２が設けられ、シート展開制御装置３２には、対象区画Ａ１～Ａ９の何れかで火災が発生した場合、火災が発生した対象区画Ａ１～Ａ９の各々を囲むように仕切シート１４を展開するため、対象区画Ａ１～Ａ９に対応して作動すべきシート展開装置１０の関係が予め記憶されている。 A sheet deployment control device 32 is provided corresponding to the sheet deployment device 10, and the sheet deployment control device 32 pre-stores the relationship of the sheet deployment device 10 that should operate in response to the target sections A1 to A9 in order to deploy the partition sheet 14 to surround each of the target sections A1 to A9 in which a fire has occurred if a fire occurs in any of the target sections A1 to A9.

図３に示す防護空間２２における対象区画Ａ１～Ａ９の天井面側の各々には火災感知器２４が設置され、火災受信盤３４から引き出された信号回線４５ｂに接続されている。 Fire detectors 24 are installed on the ceiling side of each of the target sections A1 to A9 in the protected space 22 shown in Figure 3, and are connected to a signal line 45b drawn from the fire receiving panel 34.

火災感知器２４は例えば伝送機能を備えると共に固有のアドレスが設定されており、火災発報した場合に自己のアドレスを含む火災信号を送信することで、火災受信盤３４は対象区画Ａ１～Ａ９のどの場所で火災が発生したかを識別でき、これに基づき、火災警報を出力すると共に、火災が発生した対象区画を示す移報信号を消火制御盤３８に送信するようにしている。 For example, the fire detector 24 is equipped with a transmission function and is assigned a unique address. When a fire is reported, the fire detector 24 transmits a fire signal including its own address, allowing the fire receiver panel 34 to identify in which of the target sections A1 to A9 the fire has occurred. Based on this, the fire alarm is output and a signal transfer indicating the target section in which the fire has occurred is sent to the fire extinguishing control panel 38.

このためシート展開制御装置３２は、火災受信盤３４から受信した移報信号に基づき、火災発生場所となる対象区画Ａ１～Ａ９の何れかに対応して、火災が発生した対象区画の周囲を囲むようにシート展開装置１０を作動して仕切シート１４を展開させる。 For this reason, the sheet deployment control device 32, based on the report signal received from the fire receiving panel 34, operates the sheet deployment device 10 to deploy the partition sheet 14 to surround the target compartment where the fire has occurred, corresponding to one of the target compartments A1 to A9 where the fire has occurred.

図３に示す防護空間２２における対象区画Ａ１～Ａ９の天井面側の各々には、例えば消火用水又は消火泡等の消火剤を散布する消火ヘッド２６が配置され、消火ヘッド２６は開閉弁３０を介して消火剤供給設備３６からの消火配管４２に接続されている。 Fire extinguishing heads 26 that spray extinguishing agents such as extinguishing water or extinguishing foam are disposed on the ceiling surface side of each of the target compartments A1 to A9 in the protected space 22 shown in FIG. 3, and the extinguishing heads 26 are connected to a fire extinguishing pipe 42 from an extinguishing agent supply facility 36 via an on-off valve 30.

消火剤供給設備３６は消火ポンプ設備又は泡消火ポンプ設備であり、火災受信盤３４で火災警報が出力された場合、消火ポンプ設備の起動により消火用水が供給されるか、又は泡消火ポンプ設備の起動により泡消火液が供給される。なお、消火ポンプ設備又は泡消火ポンプ設備の起動は、手動操作による起動又は火災受信盤３４からの移報信号による連動起動とする。 The extinguishing agent supply equipment 36 is a fire pump equipment or a foam fire pump equipment. When a fire alarm is output from the fire receiving panel 34, the fire pump equipment is started to supply fire water, or the foam fire pump equipment is started to supply foam extinguishing liquid. The fire pump equipment or the foam fire pump equipment is started by manual operation or by linked start-up via a signal transfer from the fire receiving panel 34.

開閉弁３０に対しては、消火制御盤３８から引き出された信号回線４５ｃが接続されている。消火制御盤３８は、火災受信盤３４から受信した移報信号が示す火災発生場所となる対象区画Ａ１～Ａ９の何れかに対応して、火災が発生した対象区画に配置した開閉弁３０に開駆動信号を送信して開放させ、火災発生場所となる対象区画への消火用水又は消火泡の散布を行う。消火ポンプの起動、開閉弁の起動は、シート展開制御装置３２から消火制御盤３８へ起動信号を送信させ、これに基づき行うようにしても良い。 A signal line 45c drawn from the fire extinguishing control panel 38 is connected to the on-off valve 30. The fire extinguishing control panel 38 sends an open drive signal to the on-off valve 30 located in the target compartment where the fire has occurred, corresponding to one of the target compartments A1 to A9 where the fire has occurred, indicated by the report signal received from the fire receiving panel 34, to open the valve, and sprays fire extinguishing water or fire extinguishing foam to the target compartment where the fire has occurred. The fire pump and on-off valve can be started based on a start signal sent from the sheet deployment control device 32 to the fire extinguishing control panel 38.

対象区画Ａ１～Ａ９に消火剤を散布する消火手段としては、例えば、対象区画Ａ１～Ａ９毎に閉鎖型のスプリンクラーヘッドを設けてもよいし、また、放水ノズルから消火用水を対象区画Ａ１～Ａ９に放水する放水銃装置を設けてもよい。 As a fire extinguishing means for spraying fire extinguishing agent on the target sections A1 to A9, for example, a closed sprinkler head may be provided for each of the target sections A1 to A9, or a water cannon device may be provided that sprays fire extinguishing water from a water nozzle onto the target sections A1 to A9.

シート展開装置１０に設けられた冷却剤散布ヘッド２８に対しては、冷却剤供給設備４０から火災時に冷却剤として冷却水が供給され、図２のように展開した仕切シート１４のシート面に冷却剤として冷却水を散布する。 In the event of a fire, cooling water is supplied as a coolant from the coolant supply equipment 40 to the coolant spray head 28 provided on the sheet deployment device 10, and the cooling water is sprayed as a coolant onto the sheet surface of the partition sheet 14 deployed as shown in Figure 2.

冷却剤供給設備４０は送水ポンプ設備であり、例えば、消火制御盤３８による消火剤供給設備３６に連動して起動され、冷却配管４４を介してシート展開装置１０の冷却剤散布ヘッド２８に冷却水を供給する。また、開閉弁４６に対しては、消火制御盤３８から引き出された信号回線（図示せず）が接続され、消火制御盤３８は、火災受信盤３４から移報信号により受信した火災発生場所となる対象区画Ａ１～Ａ９の何れかに対応して、火災が発生した対象区画を仕切るシート展開装置１０の外側シート面に対応した開閉弁４６（図２参照）に開駆動信号を送信して開放させ、展開した仕切シート１４の外側シート面に冷却水を散布させる。なお、図３は開閉弁４６を省略している。なお、消火剤供給設備３６と冷却剤供給設備４０を共用し、同じく、消火配管４２と冷却配管４４を共用するようにしても良い。 The coolant supply equipment 40 is a water pump equipment, and is started, for example, in conjunction with the extinguishing agent supply equipment 36 by the fire extinguishing control panel 38, and supplies cooling water to the coolant spray head 28 of the sheet deployment device 10 through the cooling pipe 44. A signal line (not shown) drawn from the fire extinguishing control panel 38 is connected to the on-off valve 46, and the fire extinguishing control panel 38 transmits an open drive signal to the on-off valve 46 (see FIG. 2) corresponding to the outer sheet surface of the sheet deployment device 10 that separates the target section where the fire has occurred, corresponding to one of the target sections A1 to A9 that are the location of the fire, received by the fire receiving panel 34 through a report signal, to open the valve, and spray cooling water on the outer sheet surface of the deployed partition sheet 14. Note that the on-off valve 46 is omitted in FIG. 3. Note that the extinguishing agent supply equipment 36 and the coolant supply equipment 40 may be shared, and similarly, the fire extinguishing pipe 42 and the cooling pipe 44 may be shared.

［防災設備の動作］
図４は火災発生場所を囲むように仕切シートを展開するシート展開装置の動作を示した説明図あり、冷却剤散布ヘッド２８は図示を省略している。図５は図４の仕切シートの展開に対する冷却水の散布を平面で示した説明図である。 [Disaster prevention equipment operation]
Fig. 4 is an explanatory diagram showing the operation of the sheet deployment device that deploys the partition sheet to surround the fire site, omitting the illustration of the coolant spray head 28. Fig. 5 is an explanatory diagram showing the spraying of cooling water to the deployed partition sheet of Fig. 4 in a plan view.

図４に示すように、対象区画Ａ５で火災が発生してこれに対応する火災感知器２４が火災発報したとすると、火災発生場所として判別された対象区画Ａ５の上方の天井面に矩形配置された４台のシート展開装置１０のラッチ解除作動部１８が作動されて保持部材１６のラッチが解除され、ロール状に巻かれた仕切シート１４の保持が解除されて落下し、対象区画Ａ５の周囲４面を囲むように仕切シート１４が展開され、対象区画Ａ５の周囲が閉鎖されて仕切区画が形成される。 As shown in FIG. 4, if a fire breaks out in the target area A5 and the corresponding fire detector 24 issues a fire alarm, the latch release operating parts 18 of the four sheet deployment devices 10 arranged in a rectangular shape on the ceiling surface above the target area A5, which has been determined to be the location of the fire, are activated to release the latches of the holding members 16, the rolled-up partition sheet 14 is released and falls, and the partition sheet 14 is deployed to surround the four sides of the target area A5, closing off the perimeter of the target area A5 and forming a partition area.

このため対象区画Ａ５で発生した火災による炎、煙及び熱は、その周囲を囲んで展開された仕切シート１４により遮られ、その外側への放出が抑制され、これにより実質的に防火区画を形成することができる。 As a result, flames, smoke, and heat from a fire that breaks out in the target compartment A5 are blocked by the partition sheet 14 deployed around it, preventing it from escaping to the outside, essentially forming a fire compartment.

また、仕切シート１４の展開で囲まれた対象区画Ａ５に対しては開閉弁３０の開駆動により消火ヘッド２６から消火用水又は消火泡が散布されるため、大倉庫といった防護空間２２の場合に、天井面に近い例えば数メートルを超える高い位置に消火ヘッド２６があっても、周囲に散逸することなく仕切シート１４で囲まれた対象区画Ａ５の中に集中的に散布され、対象区画Ａ５で発生している火災を確実に抑制し、消火させることが可能となる。 In addition, the fire extinguishing head 26 sprays extinguishing water or extinguishing foam onto the target area A5 surrounded by the deployed partition sheet 14 by opening the on-off valve 30. Therefore, in the case of a protected space 22 such as a large warehouse, even if the fire extinguishing head 26 is located at a high position, for example more than several meters, close to the ceiling surface, the water is sprayed in a concentrated manner within the target area A5 surrounded by the partition sheet 14 without scattering to the surrounding area, making it possible to reliably suppress and extinguish a fire occurring in the target area A5.

また、消火ヘッド２６から消火用水又は消火泡を散布した場合、周囲を囲んで展開された仕切シート１４に遮られて周囲へ漏れ出すことが殆どなく、消火用水又は消火泡の散布による損害を最小限に抑えることが可能となる。 In addition, when extinguishing water or extinguishing foam is sprayed from the extinguishing head 26, it is blocked by the partition sheet 14 deployed around the periphery and hardly leaks out to the surrounding area, making it possible to minimize damage caused by the spraying of extinguishing water or extinguishing foam.

なお、仕切シート１４の展開により周囲が囲まれた対象区画Ａ５にあっては、４枚の仕切シート１４の合わせ目に隙間が発生するが、この隙間部分を閉鎖するように、例えばコーナー部分の内側を斜め横切るように補助用の仕切シートを展開して閉鎖するようにしてもよい。 In addition, in the target section A5, which is surrounded by the unfolded partition sheets 14, gaps will occur at the seams of the four partition sheets 14. In order to close these gaps, for example, an auxiliary partition sheet may be unfolded diagonally across the inside of the corner to close the gaps.

また、図５に示すように、対象区画Ａ５を囲んで仕切シート１４を展開した４台のシート展開装置１０の外側に設けられた冷却剤散布ヘッド２８からは冷却水が外側シート面に対し散布されることで、遮炎性、遮煙性及び遮熱性が高められ、また、外側シート面に沿って流れ落ちることで高い冷却効果が得られ、耐熱性が高められる。 As shown in FIG. 5, cooling water is sprayed onto the outer sheet surface from the coolant spray heads 28 installed on the outside of the four sheet deployment devices 10 that deploy the partition sheets 14 around the target section A5, improving the flame, smoke and heat insulation properties, and the water flows down along the outer sheet surface, providing a high cooling effect and improving heat resistance.

更に、展開した仕切シート１４に沿って冷却水が流れ落ちることで仕切シート１４の重量が増加し、シートを下に引いて広げる力が加わることで展開した仕切シート１４の張りを強くして形を保つことができる。 In addition, as the cooling water flows down along the unfolded partition sheet 14, the weight of the partition sheet 14 increases, and the force pulling the sheet down and spreading it out increases the tension of the unfolded partition sheet 14, allowing it to maintain its shape.

［本発明の変形例］
（対象施設）
上記の実施形態は、対象施設として広い防護空間をもつ倉庫等を対象にした防災設備にシート展開装置を設置しているが、これに限定されず、適宜の施設に適用することができる。例えば、倉庫以外に、トンネル、展示施設、駐車施設、大規模工場等が対象となり得る。 [Modifications of the present invention]
(Target facilities)
In the above embodiment, the sheet deployment device is installed in a disaster prevention facility targeted at a warehouse or the like having a large protected space as a target facility, but the present invention is not limited to this and can be applied to any suitable facility. For example, in addition to warehouses, tunnels, exhibition facilities, parking facilities, large-scale factories, etc. may be targeted.

また、倉庫は、倉庫内に荷物をバラ積みする一般倉庫以外に、多数のラック棚が配置されたラック倉庫があり、ラック倉庫にはラック棚に対しフォークリフトの運転により荷物を出し入れする手動倉庫と、スタッカクレーンによりラック棚に対し荷物を自動的に出し入れする自動倉庫があるが、いずれも本発明のシート展開装置を用いた防災設備の対象に含まれる。 In addition to general warehouses where cargo is stored in bulk, there are also rack warehouses with many rack shelves. Among rack warehouses, there are manual warehouses where cargo is loaded and unloaded from the rack shelves by operating a forklift, and automated warehouses where cargo is automatically loaded and unloaded from the rack shelves by a stacker crane. Both of these types of warehouses are covered by the disaster prevention equipment that uses the sheet deployment device of the present invention.

（シート展開装置の配置）
上記の実施形態は、防護空間の上部平面に複数のシート展開装置を格子状に配置した場合を例にとっているが、火災発生場所を取り囲むように仕切シートを展開することができれば、シート展開装置の配置は必要に応じて適宜の配置とする。 (Layout of the sheet deployment device)
The above embodiment takes as an example a case in which multiple sheet deployment devices are arranged in a grid pattern on the upper flat surface of the protected space, but as long as the partition sheets can be deployed to surround the location where the fire occurs, the sheet deployment devices can be arranged as necessary.

また、対象区画の横幅が長くなる場合は、複数台のシート展開装置を横に並べて配置する。この場合、隣接する仕切シートが端部で重なって隙間を塞ぐように複数台のシート展開装置を横に並べて配置する。 In addition, if the width of the target section is long, multiple sheet deployment devices are arranged side by side. In this case, multiple sheet deployment devices are arranged side by side so that adjacent partition sheets overlap at the ends to close the gap.

（その他）
また、本発明はその目的と利点を損なうことのない適宜の変形を含み、更に上記の実施形態に示した数値による限定は受けない。 (others)
Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages of the present invention, and is not limited to the numerical values shown in the above embodiment.

１０：シート展開装置
１２：装置本体
１４：仕切シート
１５：固定部材
１６：保持部材
１８：ラッチ解除作動部
２０：防災設備
２２：防護空間
２４：火災感知器
２６：消火ヘッド
２８：冷却剤散布ヘッド
３０，４６：開閉弁
３２：シート展開制御装置
３４：火災受信盤
３６：消火剤供給設備
３８：消火制御盤
４０：冷却剤供給設備
４２：消火配管
４４：冷却配管
４５ａ～４５ｄ：信号回線
Ａ１～Ａ９：対象区画 10: Sheet deployment device 12: Device body 14: Partition sheet 15: Fixing member 16: Holding member 18: Latch release operation unit 20: Disaster prevention equipment 22: Protected space 24: Fire detector 26: Fire extinguishing head 28: Coolant spraying head 30, 46: Opening and closing valve 32: Sheet deployment control device 34: Fire receiving panel 36: Fire extinguishing agent supply equipment 38: Fire extinguishing control panel 40: Coolant supply equipment 42: Fire extinguishing piping 44: Cooling piping 45a to 45d: Signal lines A1 to A9: Target section

Claims (2)

防護空間の火災を抑制消火する防災設備のシート展開装置であって、
防火性、耐火性、耐熱性又は遮煙性を有する布状体を用いた仕切シートと、
前記防護空間の上方側の所定位置に設置され、前記仕切シートの一端側が固定された本体手段と、
一端が前記本体手段に固定され、通常時に、前記仕切シートの他端側を含め前記仕切シートを非展開状態で前記本体手段側に保持する保持手段と、
前記防護空間の火災時に、通電加熱により前記保持手段を溶断させて前記仕切シートの保持を解除して前記仕切シートの他端側を下方へ落下させることにより、当該仕切シートを前記防護空間内の火災発生場所を含む任意の対象区画を仕切るように展開状態とする展開手段と、
を備えたことを特徴とする防災設備のシート展開装置。
 A sheet deployment device for disaster prevention equipment that suppresses and extinguishes a fire in a protected space,
A partition sheet using a cloth-like material having fire resistance, fire resistance, heat resistance or smoke barrier properties;
a main body means installed at a predetermined position above the protective space and having one end of the partition sheet fixed thereto;
a holding means having one end fixed to the main body means and for holding the partition sheet, including the other end side of the partition sheet, in a non-expanded state on the main body means side under normal circumstances;
an unfolding means for unfolding the partition sheet so as to partition any target section including a location where a fire has broken out in the protected space by melting the holding means through electrical heating to release the partition sheet from its holding state and causing the other end of the partition sheet to fall downward in the event of a fire in the protected space;
A sheet deployment device for disaster prevention equipment, comprising:
 請求項１記載の防災設備のシート展開装置であって、The sheet deployment device for disaster prevention equipment according to claim 1,
前記保持手段は、熱可溶性を有する樹脂テープであり、the holding means is a heat-fusible resin tape,
前記展開手段は、前記樹脂テープに埋め込まれたヒータ線であることを特徴とする防災設備のシート展開装置。A sheet deployment device for disaster prevention equipment, wherein the deployment means is a heater wire embedded in the resin tape.
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