JP2002256632A - Eave soffit section fire resistive structure and fire preventive damper - Google Patents
Eave soffit section fire resistive structure and fire preventive damperInfo
- Publication number
- JP2002256632A JP2002256632A JP2001054669A JP2001054669A JP2002256632A JP 2002256632 A JP2002256632 A JP 2002256632A JP 2001054669 A JP2001054669 A JP 2001054669A JP 2001054669 A JP2001054669 A JP 2001054669A JP 2002256632 A JP2002256632 A JP 2002256632A
- Authority
- JP
- Japan
- Prior art keywords
- fire
- damper
- eaves
- insulating material
- heat insulating
- 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
Links
Landscapes
- Building Environments (AREA)
- Air-Flow Control Members (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、建屋軒天部の耐火性
能を向上させる軒天部防耐火構造及び防火ダンパーに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire protection structure and a fire damper for improving the fire resistance of a building eave.
【０００２】[0002]
【従来の技術】図５（ａ）は従来の軒天部構造を示した
側面図である。軒天板５１の軒先側が例えば長方形状に
カットされることで軒裏通気用の開口部５１ａが形成さ
れており、この開口部５１ａに防火ダンパー５２が装着
されている。防火ダンパー５２における本体部５２ａの
下面部は多数の通気口５２ｂを有したガラリ部を成して
いる。本体部５２ａにおける図中右側の側板部には、本
体部５２ａの設置用下地である下地桟５２ｃが留め付け
られている。また、本体部５２ａにおける図中左側の側
板部（軒先側の側板部）は、破風下地桟５３に留め付け
られている。本体部５２ａの下面部上の軒先側には閉鎖
蓋駆動部５２ｄが設けられている。この閉鎖蓋駆動部５
２ｄは、閉鎖蓋５２ｅを閉鎖方向に付勢する巻きバネや
火災時の熱によって閉鎖蓋５２ｅの作動規制を解除する
温度ヒューズなどを備えて構成されており、図５（ｂ）
に示すように、火災時には閉鎖蓋５２ｅを傾倒させて通
気口５２ｂを閉鎖するようになっている。2. Description of the Related Art FIG. 5A is a side view showing a conventional eave-top structure. An eaves top side of the eaves top plate 51 is cut into, for example, a rectangular shape to form an opening 51a for ventilation behind the eaves, and a fireproof damper 52 is attached to the opening 51a. The lower surface portion of the main body portion 52a of the fire prevention damper 52 forms a rattle portion having a large number of ventilation holes 52b. A base rail 52c, which is a base for installation of the main body 52a, is fastened to a right side plate of the main body 52a in the drawing. Further, a left side plate portion (eave side side plate portion) of the main body portion 52a in the drawing is fastened to a gable base beam 53. A closing lid driving section 52d is provided on the eaves side on the lower surface of the main body section 52a. This closing lid driving unit 5
2d is provided with a winding spring for urging the closing lid 52e in the closing direction, a temperature fuse for releasing the operation restriction of the closing lid 52e by heat at the time of fire, and the like.
As shown in FIG. 7, in the event of a fire, the closing lid 52e is tilted to close the vent 52b.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の軒天部構造では火災発生時に以下の不具合を招来す
るおそれがある。すなわち、防火ダンパー５２における
本体部５２ａの図中右側の側板部と軒天板５１のカット
縁面との間に隙間が存在しており、火災発生によって防
火ダンパー５２の近傍の温度が上昇すると、下地桟５２
ｃにおける上記隙間の露呈部分に熱が加わり、たとえ軒
天板５１の耐火性能（遮熱性能）が十分であったとして
も、下地桟５２ｃが燃焼し始めることになる。特に、火
災時の熱で防火ダンパー５２の下面部（ガラリ部）が変
形すると、この変形による隙間部分から炎が回り込むな
どして下地桟５２ｃの燃焼が早まることになる。However, the above-mentioned conventional eaves structure may cause the following inconvenience when a fire occurs. That is, when there is a gap between the right side plate portion of the main body portion 52a in the fire prevention damper 52 and the cut edge surface of the eaves top plate 51, and the temperature near the fire prevention damper 52 increases due to a fire, Shimoji 52
Heat is applied to the exposed portion of the gap in c, and even if the fireproof performance (heat shielding performance) of the eaves top plate 51 is sufficient, the base beam 52c starts burning. In particular, when the lower surface portion (gully portion) of the fire prevention damper 52 is deformed by the heat at the time of fire, the combustion of the base rail 52c is accelerated due to the flame wrapping around the gap due to the deformation.
【０００４】この発明は、上記の事情に鑑み、防火ダン
パー回りの木製部材の耐火性能を向上させた軒天部防耐
火構造及び防火ダンパーを提供することを目的とする。[0004] In view of the above circumstances, it is an object of the present invention to provide an eaves-top fireproof structure and a fireproof damper in which the wooden members around the fireproof damper have improved fireproof performance.
【０００５】[0005]
【課題を解決するための手段】この発明の軒天部防耐火
構造は、火災時の熱によって閉鎖蓋が作動して通気口を
閉鎖する防火ダンパーを軒天部に形成された軒裏通気用
の開口部に設置すると共に、前記防火ダンパーが留め付
けられる木製部材の表面露呈箇所が少なくとも火災時に
覆われるように不燃性断熱材が設けられていることを特
徴とする。According to the present invention, there is provided a fireproof structure for eaves on the eaves, which is provided with a fireproof damper for closing a ventilation opening by operating a closing lid by heat at the time of fire. And a non-combustible heat insulating material is provided so that at least the exposed portion of the surface of the wooden member to which the fire prevention damper is fastened is covered in the event of a fire.
【０００６】上記の構成であれば、防火ダンパーが留め
付けられる木製部材の表面露呈箇所が少なくとも火災時
に覆われるように不燃性断熱材が設けられているので、
火災時において防火ダンパー近傍の温度が上昇しても、
木製部材への熱の伝わりが上記不燃性断熱材にて遮断さ
れ、木製部材の燃焼を回避することができる。[0006] With the above configuration, the non-combustible heat insulating material is provided so that the exposed portion of the surface of the wooden member to which the fire prevention damper is fastened is covered at least in the event of a fire.
Even if the temperature near the fire protection damper rises during a fire,
The transfer of heat to the wooden member is blocked by the non-combustible heat insulating material, and the wooden member can be prevented from burning.
【０００７】木製部材の下面側であって前記開口部に露
呈する箇所が少なくとも火災時に覆われるように不燃性
断熱材が設けられているのがよい。上記の露呈箇所は特
に火災時の熱に曝されやすく、かかる箇所が覆われるよ
うに不燃性断熱材を設けたことで、木製部材の燃焼を一
層遅延させることができる。[0007] It is preferable that a non-combustible heat insulating material is provided so that a portion exposed on the lower surface side of the wooden member at the opening is covered at least in a fire. The above-mentioned exposed portion is particularly easily exposed to heat at the time of a fire, and by providing a non-combustible heat insulating material so as to cover such a portion, the burning of the wooden member can be further delayed.
【０００８】上記不燃性断熱材を未膨張状態の熱膨張性
耐火材としてもよい。この未膨張状態の熱膨張性耐火材
を用いる場合は、木製部材の表面露呈箇所を直接覆わな
くても、火災時に膨張することで当該表面露呈箇所を覆
うことが可能である。[0008] The non-combustible heat insulating material may be an unexpanded thermally expandable refractory material. When the unexpanded thermally expandable refractory material is used, it is possible to cover the exposed portion of the wooden member by expanding at the time of fire without directly covering the exposed portion of the surface of the wooden member.
【０００９】また、この発明の防火ダンパーは、火災時
の熱によって閉鎖蓋が作動して通気口を閉鎖する防火ダ
ンパーであって、防火ダンパー本体に、その設置用下地
である木製部材が一体的に設けられており、この木製部
材の表面露呈箇所が少なくとも火災時に覆われるように
不燃性断熱材が設けられていることを特徴とする。ま
た、かかる構成において、軒天部に形成された軒裏通気
用の開口部に設置された状態で当該開口部に露呈する木
製部材の下面側が少なくとも火災時に覆われるように不
燃性断熱材が設けられているのがよい。A fire damper according to the present invention is a fire damper in which a closing lid is operated by heat at the time of fire to close an air vent, and a wooden member as a base for installation is integrally formed on a fire damper body. And a non-combustible heat insulating material is provided so that the exposed portion of the surface of the wooden member is covered at least in the event of a fire. Further, in such a configuration, a non-combustible heat insulating material is provided so that at least the lower surface side of the wooden member exposed to the opening in the state of being installed in the eaves back ventilation opening formed in the eaves top is covered at least in a fire. It is good that it is.
【００１０】上記構成の防火ダンパーであれば、不燃性
断熱材が予め取り付けられたかたちで建築現場に提供さ
れるため、建築現場での不燃性断熱材の装着作業を省く
ことができる。[0010] With the fireproof damper having the above-described configuration, the nonflammable heat insulating material is provided to the building site in a pre-attached form, so that the work of mounting the nonflammable heat insulating material at the building site can be omitted.
【００１１】上記不燃性断熱材を未膨張状態の熱膨張性
耐火材としてもよい。この未膨張状態の熱膨張性耐火材
を用いる場合は、木製部材の表面露呈箇所を直接覆わな
くても、火災時に膨張することで当該表面露呈箇所を覆
うことが可能である。[0011] The non-combustible heat insulating material may be an unexpanded thermally expandable refractory material. When the unexpanded thermally expandable refractory material is used, it is possible to cover the exposed portion of the wooden member by expanding at the time of fire without directly covering the exposed portion of the surface of the wooden member.
【００１２】[0012]
【発明の実施の形態】以下、この発明の実施形態の軒天
部防耐火構造及び防火ダンパーを図１乃至図４に基づい
て説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a fire protection structure and a fire damper for an eaves ceiling according to an embodiment of the present invention will be described with reference to FIGS.
【００１３】図１はこの実施形態の軒天部防耐火構造を
示した断面図である。不燃性材料から成る建物外壁１に
鋼製或いはアルミニウム製等の軒天ランナー２がビスに
よって留め付けられている。そして、例えばけい酸カル
シウム板等から成る軒天板３の一方の側縁部は、軒天ラ
ンナー２に挿入されると共に野縁４にビス等によって留
め付けられ、他方の側縁部は軒先側に位置する下地桟６
ｃにビスによって留め付けられている。軒天板３の軒先
側の側縁部が例えば長方形状にカットされることで軒裏
通気用の開口部３ａが形成されており、この開口部３ａ
に防火ダンパー６が装着されている。軒先側には破風下
地桟７が位置しており、この破風下地桟７の表面（外
面）側には例えばけい酸カルシウム板等から成る防火破
風下地８が取り付けられている。そして、防火破風下地
８の表面側及び破風下地桟７の下部側を覆うように鉄板
等から成る破風水切り９が装着されている。FIG. 1 is a cross-sectional view showing the eaves-top fireproof structure of this embodiment. An eaves runner 2 made of steel or aluminum is fastened to a building outer wall 1 made of a noncombustible material with screws. One side edge of the eaves top plate 3 made of, for example, a calcium silicate plate or the like is inserted into the eaves top runner 2 and fastened to the field edge 4 with screws or the like, and the other side edge is placed on the eaves end side. Shimokoji 6 located at
It is fastened to c by a screw. An opening 3a for ventilation on the eaves back is formed by cutting a side edge of the eaves top plate 3 on the eaves top side into, for example, a rectangular shape.
Is equipped with a fire damper 6. A gable base 7 is located on the eaves front side, and a fire-proof gable base 8 made of, for example, a calcium silicate plate or the like is attached to the front (outer surface) side of the gable base. A gable drainer 9 made of an iron plate or the like is attached so as to cover the front side of the fire protection gable base 8 and the lower side of the gable base girder 7.
【００１４】図２は図１の軒先側を拡大して示した断面
図である。下地桟６ｃは、防火ダンパー６における本体
部６ａと一体化された部品として搬入され、軒天材の留
め付け下地となる木製部材であり、ビス等によって本体
部６ａの図中右側の側板部に留め付けられることで本体
部６ａと一体化されている。また、本体部６ａにおける
図中左側の側板部（軒先側の側板部）は、木材から成る
破風下地桟７にビス等によって留め付けられている。防
火ダンパー６における本体部６ａの下面部は、多数の通
気口６ｂを有したガラリ部を成している。なお、下面部
（ガラリ部）を別体のものとし、ねじ等によって本体部
６ａに留め付けるようにしてもよい。本体部６ａの軒先
側の下面部上には、閉鎖蓋駆動部６ｄが設けられてい
る。この閉鎖蓋駆動部６ｄは、閉鎖蓋６ｅを閉鎖方向に
付勢する巻きバネや火災時の熱によって閉鎖蓋６ｅの作
動規制を解除する温度ヒューズなどを備えて構成されて
おり、火災時には閉鎖蓋６ｅを傾倒させて通気口６ｂを
閉鎖するようになっている。FIG. 2 is an enlarged sectional view showing the eaves side of FIG. The base bar 6c is a wooden member which is carried in as a part integrated with the main body 6a of the fire damper 6, and is a wooden member serving as a base for fastening the eave heaven material, and is attached to the right side plate of the main body 6a by screws or the like. By being fastened, it is integrated with the main body 6a. Further, a left side plate portion (eave side side plate portion) of the main body 6a in the figure is fastened to a gable ground bar 7 made of wood with screws or the like. The lower surface of the main body 6a of the fire protection damper 6 forms a rattle having a large number of vents 6b. Note that the lower surface portion (gully portion) may be a separate body and fastened to the main body portion 6a with screws or the like. A closing lid driving unit 6d is provided on the lower surface of the main body 6a on the eaves side. The closing lid driving section 6d is provided with a winding spring for urging the closing lid 6e in the closing direction, a temperature fuse for releasing the operation restriction of the closing lid 6e by heat at the time of fire, and the like. The ventilation port 6b is closed by tilting the ventilation port 6e.
【００１５】防火ダンパー６における本体部６ａの図中
右側の側板部と軒天板３の開口部３ａを成しているカッ
ト縁面との間は、従来構造であれば隙間となって下地桟
６ｃの下面の一部が露呈することとなる箇所であるが、
この発明では不燃性断熱材であるガラス繊維不織布マッ
ト６ｆを介在させることで当該隙間を無くしてある。す
なわち、下地桟６ｃ下面の開口部３ａに露呈する箇所に
ガラス繊維不織布マット６ｆを設けている。また、閉鎖
蓋駆動部６ｄの上側空間にも不燃性断熱材であるガラス
繊維不織布マット６ｇを配置し、破風下地桟７の表面露
呈箇所が上記ガラス繊維不織布マット６ｆによって覆わ
れるようにしている。そして、この実施形態では、ガラ
ス繊維不織布マット６ｆを予め防火ダンパー６の本体部
６ａの側板部或いは下地桟６ｃの下面に貼り付けてお
き、更に、ガラス繊維不織布マット６ｇを閉鎖蓋駆動部
６ｄの上側空間に配置しておくことで、ガラス繊維不織
布マット６ｆ，６ｇが予め取り付けられたかたちで防火
ダンパー６が建築現場に提供されるようにしている。In the case of the conventional structure, a gap is formed between the side plate on the right side of the main body 6a of the fire prevention damper 6 and the cut edge surface forming the opening 3a of the eaves ceiling plate 3 in the conventional structure. 6c is a place where a part of the lower surface is exposed,
In the present invention, the gap is eliminated by interposing the glass fiber nonwoven fabric mat 6f which is a non-combustible heat insulating material. That is, the glass fiber nonwoven fabric mat 6f is provided at a location exposed to the opening 3a on the lower surface of the base bar 6c. In addition, a glass fiber nonwoven fabric mat 6g, which is a non-combustible heat insulating material, is also arranged in the space above the closing lid driving unit 6d, so that the surface exposed portion of the gable base bar 7 is covered with the glass fiber nonwoven fabric mat 6f. Then, in this embodiment, the glass fiber nonwoven fabric mat 6f is previously attached to the side plate portion of the main body 6a of the fire prevention damper 6 or the lower surface of the base bar 6c, and further, the glass fiber nonwoven fabric mat 6g is attached to the closing lid driving portion 6d. By arranging the glass fiber nonwoven fabric mats 6f and 6g in advance in the upper space, the fireproof damper 6 is provided to the building site.
【００１６】上記の構成であれば、防火ダンパー６の本
体部６ａが留め付けられる下地桟６ｃの表面露呈箇所で
あって開口部３ａに露呈する部分を覆うようにガラス繊
維不織布マット６ｆが設けられているので、下地桟６ｃ
への熱の伝わりが遮断され、下地桟６ｃの燃焼を回避す
ることができる。また、防火ダンパーの本体部６ａが留
め付けられる破風下地桟７の表面露呈箇所が覆われるよ
うにガラス繊維不織布マット６ｆが設けられているの
で、破風下地桟７への熱の伝わりが遮断され、破風下地
桟７の燃焼を回避することができる。In the above configuration, the glass fiber nonwoven fabric mat 6f is provided so as to cover the exposed portion of the surface of the base bar 6c to which the main body portion 6a of the fire prevention damper 6 is fastened and which is exposed to the opening 3a. So the groundwork 6c
The transmission of heat to the base bar 6c can be interrupted, and the combustion of the base beam 6c can be avoided. Further, since the glass fiber nonwoven fabric mat 6f is provided so as to cover the exposed portion of the surface of the gable foundation 7 to which the main body 6a of the fire prevention damper is fastened, the transmission of heat to the gable foundation 7 is cut off. Combustion of the gable ground bar 7 can be avoided.
【００１７】図３は軒天部防耐火構造の変形例を示した
断面図であり、同図（ａ）は通常時を示し、同図（ｂ）
は火災時の様子を示している。この例では、不燃性断熱
材である未膨張状態の熱膨張性耐火材６ｆ′を、防火ダ
ンパー６における本体部６ａの図中右側の側板部のうち
軒天板３のカット縁面に対面する箇所の外側に設け、不
燃性断熱材である未膨張状態の熱膨張性耐火材６ｇ′
を、防火ダンパー６における本体部６ａの図中左側の側
板部のうち破風下地桟７の下方に位置する箇所の内側に
設けている。熱膨張性耐火材６ｆ′，６ｇ′は、例えば
２００℃前後で数十倍に膨張（発泡）する不燃性材料で
あるのが望ましく、例えば、ブチルゴムを主体とするゴ
ム系材料、リン酸アンモニウム等のリン化合物を含有す
る材料、或いはグラファイト系材料などを用いることが
できるが、これらに限定されるものではない。また、熱
膨張性耐火材６ｆ′，６ｇ′を不定形材（液状等）の塗
布によって得ることもできるが、この例では、片面に粘
着面を有するテープ状のものを用いている。FIG. 3 is a cross-sectional view showing a modification of the fireproof structure at the eaves ceiling. FIG. 3A shows a normal state, and FIG.
Indicates a fire situation. In this example, the unexpanded thermally expandable refractory material 6f ', which is a non-combustible heat insulating material, faces the cut edge surface of the eaves top plate 3 of the right side plate portion of the main body 6a of the fire protection damper 6 in the drawing. 6 g ′ of an unexpanded thermally expandable refractory material that is provided outside the location and is a non-combustible heat insulating material
Is provided inside a portion located below the gable base bar 7 in the left side plate portion of the main body portion 6a of the fire prevention damper 6. The heat-expandable refractory materials 6f 'and 6g' are preferably incombustible materials that expand (foam) several tens of times at about 200 ° C., for example, a rubber-based material mainly composed of butyl rubber, ammonium phosphate, and the like. A material containing a phosphorus compound, a graphite-based material, or the like can be used, but is not limited thereto. Further, the heat-expandable refractory materials 6f 'and 6g' can be obtained by applying an irregular-shaped material (liquid or the like). In this example, a tape-shaped material having an adhesive surface on one side is used.
【００１８】上記の構成であれば、火災時の熱によって
熱膨張性耐火材６ｆ′が膨張し、下地桟６ｃの下方の隙
間部分の全体が膨張した熱膨張性耐火材６ｆ′によって
満たされることになり、下地桟６ｃの下面露呈部分が熱
膨張性耐火材６ｆ′によって覆われるから、下地桟６ｃ
への熱の伝わりが遮断され、下地桟６ｃの燃焼を回避す
ることができる。また、火災発生時の熱によって熱膨張
性耐火材６ｇ′が膨張して破風下地桟７の下面露呈箇所
が膨張した熱膨張性耐火材６ｇ′で覆われるので、破風
下地桟７への熱の伝わりが遮断され、破風下地桟７の燃
焼を回避することができる。また、かかる構成によれ
ば、防火ダンパー６の本体部６ａに熱膨張性耐火材６
ｆ′及び熱膨張性耐火材６ｇ′を予め設けたかたちで防
火ダンパー６を建築現場に提供できるため、建築現場で
の上記耐火材の装着作業を省くことができる。なお、熱
膨張性耐火材６ｇ′の膨張（発泡）開始温度は、閉鎖蓋
駆動部６ｄの動作温度よりも高めに設定しておき、閉鎖
蓋６ｅの駆動後に膨張が始まるようにするのがよい。With the above configuration, the heat-expandable refractory material 6f 'expands due to the heat of a fire, and the entire gap portion below the base bar 6c is filled with the expanded heat-expandable refractory material 6f'. And the exposed portion of the lower surface of the base bar 6c is covered with the heat-expandable refractory material 6f '.
The transmission of heat to the base rail 6c is interrupted, and the combustion of the base rail 6c can be avoided. In addition, since the heat-expandable refractory 6g 'expands due to the heat at the time of the fire and the lower surface exposed portion of the gable foundation 7 is covered with the expanded thermal-expansion refractory 6g', the heat applied to the gable foundation 7 is reduced. The transmission is interrupted, and the combustion of the gable base bar 7 can be avoided. Further, according to such a configuration, the heat-expandable refractory material 6 is provided on the main body 6a of the fireproof damper 6.
Since the fireproof damper 6 can be provided to the construction site in a form in which the f 'and the heat-expandable refractory material 6g' are provided in advance, the work of mounting the refractory material at the construction site can be omitted. The expansion (foaming) start temperature of the thermally expandable refractory material 6g 'is preferably set to be higher than the operating temperature of the closing lid driving section 6d so that the expansion starts after the closing lid 6e is driven. .
【００１９】図４は軒天部防耐火構造の他の変形例を示
した断面図であり、同図（ａ）は通常時を示し、同図
（ｂ）は火災時の様子を示している。この例では、不燃
性断熱材である未膨張状態の熱膨張性耐火材１１を、軒
天板３のカット縁面に装着し、不燃性断熱材であるガラ
ス繊維不織布マット１２を、破風下地桟７の表面露呈箇
所である下面に装着している。すなわち、かかる例は、
防火ダンパー６に予め不燃性材料を設けておくのではな
く、現場において防火ダンパー回りに不燃性断熱材を装
着する形態を示している。FIGS. 4A and 4B are cross-sectional views showing another modification of the eaves-top fireproof structure. FIG. 4A shows a normal state, and FIG. 4B shows a fire state. . In this example, an unexpanded heat-expandable refractory material 11 which is a non-combustible heat insulating material is mounted on the cut edge surface of the eaves top plate 3, and a glass fiber nonwoven fabric mat 12 which is a non-combustible heat insulating material is attached to a gable base rail. 7 is mounted on the lower surface, which is the exposed portion of the surface. That is, such an example is
In this embodiment, a non-combustible material is not provided in advance on the fire damper 6, but a non-combustible heat insulating material is mounted around the fire damper at the site.
【００２０】なお、上記実施形態では、不燃性断熱材と
してガラス繊維不織布マットや熱膨張性耐火材を示した
が、これらに限るものではくな、例えば、けい酸カルシ
ウム板やロックウール等を用いてもよいものである。In the above embodiment, the non-combustible heat insulating material is a glass fiber nonwoven fabric mat or a heat-expandable refractory material. However, the present invention is not limited to these materials. For example, a calcium silicate plate, rock wool, or the like may be used. It may be.
【００２１】[0021]
【発明の効果】以上説明したように、この発明によれ
ば、防火ダンパーが留め付けられる木製部材への熱の伝
わりが遮断され、木製部材の燃焼を遅延または回避する
ことができるという効果を奏する。As described above, according to the present invention, the transmission of heat to the wooden member to which the fire prevention damper is fastened is cut off, and the effect of delaying or avoiding the burning of the wooden member can be obtained. .
【図１】この発明の実施形態における軒天部防耐火構造
の断面図である。FIG. 1 is a cross-sectional view of an eaves-top fireproof structure according to an embodiment of the present invention.
【図２】図１の軒先部を拡大した断面図である。FIG. 2 is an enlarged cross-sectional view of the eaves portion of FIG.
【図３】この発明の実施形態における変形例を示した断
面図であって、同図（ａ）は通常時の図であり、同図
（ｂ）は火災時の様子を示した図である。FIGS. 3A and 3B are cross-sectional views showing a modification of the embodiment of the present invention, wherein FIG. 3A is a diagram at the time of normal operation, and FIG. 3B is a diagram showing a state at the time of fire; .
【図４】この発明の実施形態における他の変形例を示し
た断面図であって、同図（ａ）は通常時の図であり、同
図（ｂ）は火災時の様子を示した図である。FIG. 4 is a cross-sectional view showing another modification of the embodiment of the present invention, wherein FIG. 4 (a) is a view at the time of normal operation, and FIG. 4 (b) is a view showing a state at the time of fire. It is.
【図５】従来の軒天部構造を示した断面図であり、同図
（ａ）は通常時の図であり、同図（ｂ）は火災時の様子
を示した図である。FIGS. 5A and 5B are cross-sectional views showing a conventional eave-top structure, FIG. 5A showing a normal state, and FIG. 5B showing a fire state.
１ 建物外壁 ２ 軒天ランナー ３ 軒天板 ６ 防火ダンパー ６ａ 本体部 ６ｂ 通気口 ６ｃ 下地桟 ６ｄ 閉鎖蓋駆動部 ６ｅ 閉鎖蓋 ６ｆ ガラス繊維不織布マット（不燃性断熱材） ６ｆ′熱膨張性耐火材 ６ｇ ガラス繊維不織布マット（不燃性断熱材） ６ｇ′熱膨張性耐火材 １１ 熱膨張性耐火材 １２ ガラス繊維不織布マット（不燃性断熱材） DESCRIPTION OF SYMBOLS 1 Building outer wall 2 Eaves runner 3 Eaves top plate 6 Fire prevention damper 6a Main part 6b Vent 6c Base bar 6d Closure lid drive part 6e Closure lid 6f Glass fiber nonwoven fabric mat (nonflammable heat insulating material) 6f 'Thermal expansion resistant fireproof material 6g Glass fiber nonwoven fabric mat (non-combustible heat insulating material) 6g 'thermal expansion refractory material 11 thermal expansion refractory material 12 glass fiber nonwoven mat (nonflammable heat insulating material)
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ２４Ｆ 13/14 Ｅ０４Ｂ 5/60 Ｆ (72)発明者 石井 博之 大阪府大阪市北区梅田３丁目３番５号 大 和ハウス工業株式会社内 Ｆターム(参考） 2E001 DD01 DE01 DE03 FA09 FA20 GA12 GA29 HA21 HA33 3L081 AA05 AB01 FA07 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) F24F 13/14 E04B 5/60 F (72) Inventor Hiroyuki Ishii 3-3-1 Umeda, Kita-ku, Osaka-shi, Osaka No. 5 Daiwa House Industry Co., Ltd. F term (reference) 2E001 DD01 DE01 DE03 FA09 FA20 GA12 GA29 HA21 HA33 3L081 AA05 AB01 FA07
Claims (6)
気口を閉鎖する防火ダンパーを軒天部に形成された軒裏
通気用の開口部に設置すると共に、前記防火ダンパーが
留め付けられる木製部材の表面露呈箇所が少なくとも火
災時に覆われるように不燃性断熱材が設けられているこ
とを特徴とする軒天部防耐火構造。1. A fire damper for closing a ventilation opening by operating a closing lid by heat at the time of a fire is installed in an opening for ventilation behind a eave, and the fire prevention damper is fastened. An eaves hood fireproof structure, wherein a non-combustible heat insulating material is provided so that at least the exposed portion of the surface of the wooden member is covered in the event of a fire.
いて、木製部材の下面側であって前記開口部に露呈する
箇所が少なくとも火災時に覆われるように不燃性断熱材
が設けられていることを特徴とする軒天部防耐火構造。2. The fireproof structure for eaves roof according to claim 1, wherein a non-combustible heat insulating material is provided so that a portion exposed on the lower surface side of the wooden member at the opening is covered at least in a fire. The eaves are fire resistant.
耐火構造において、前記不燃性断熱材が未膨張状態の熱
膨張性耐火材であることを特徴とする軒天部防耐火構
造。3. The eaves-top fireproof structure according to claim 1, wherein the non-combustible heat-insulating material is an unexpanded heat-expandable fireproof material. Construction.
気口を閉鎖する防火ダンパーであって、防火ダンパー本
体に、その設置用下地である木製部材が一体的に設けら
れており、この木製部材の表面露呈箇所が少なくとも火
災時に覆われるように不燃性断熱材が設けられているこ
とを特徴とする防火ダンパー。4. A fire damper for closing a ventilation opening by operating a closing lid by heat at the time of fire, wherein a fire prevention damper body is integrally provided with a wooden member as a base for installation thereof. A fireproof damper, characterized in that a non-combustible heat insulating material is provided so that a surface exposed portion of a wooden member is covered at least in a fire.
て、軒天部に形成された軒裏通気用の開口部に設置され
た状態で当該開口部に露呈する木製部材の下面側が少な
くとも火災時に覆われるように不燃性断熱材が設けられ
ていることを特徴とする防火ダンパー。5. The fire prevention damper according to claim 4, wherein the wooden member exposed to the opening in the eaves back portion when the fire is installed in the eaves back opening is covered at least in the event of a fire. A fire damper characterized by being provided with a non-combustible heat insulating material so that it can be used.
耐火構造において、前記不燃性断熱材が未膨張状態の熱
膨張性耐火材であることを特徴とする軒天部防耐火構
造。6. The eaves roof fireproof structure according to claim 4, wherein the non-combustible heat insulating material is a non-expanded thermally expandable fireproof material. Construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001054669A JP4933701B2 (en) | 2001-02-28 | 2001-02-28 | Fire damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001054669A JP4933701B2 (en) | 2001-02-28 | 2001-02-28 | Fire damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002256632A true JP2002256632A (en) | 2002-09-11 |
| JP4933701B2 JP4933701B2 (en) | 2012-05-16 |
Family
ID=18914967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001054669A Expired - Fee Related JP4933701B2 (en) | 2001-02-28 | 2001-02-28 | Fire damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4933701B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220163669A (en) * | 2021-06-03 | 2022-12-12 | 고의환 | Fire damper with improved refractory filler installation structure and construction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62129065A (en) * | 1985-12-02 | 1987-06-11 | 浅野スレ−ト株式会社 | Fireproof ventilation port |
| JPH0673829A (en) * | 1992-08-25 | 1994-03-15 | Nippon Kagaku Sangyo Kk | Ventilation structure of ceiling |
| JPH08218579A (en) * | 1995-02-09 | 1996-08-27 | Matsushita Electric Works Ltd | Eave ventilation structure |
| JPH094157A (en) * | 1995-06-26 | 1997-01-07 | Matsushita Electric Works Ltd | Eaves edge drafting and fire preventing structure |
| JPH1113198A (en) * | 1997-06-20 | 1999-01-19 | Matsushita Electric Works Ltd | Sound-insulating fire-resisting ceiling structure |
| JPH11159018A (en) * | 1997-11-27 | 1999-06-15 | Natl House Ind Co Ltd | Ventilation structure for eave soffit |
-
2001
- 2001-02-28 JP JP2001054669A patent/JP4933701B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62129065A (en) * | 1985-12-02 | 1987-06-11 | 浅野スレ−ト株式会社 | Fireproof ventilation port |
| JPH0673829A (en) * | 1992-08-25 | 1994-03-15 | Nippon Kagaku Sangyo Kk | Ventilation structure of ceiling |
| JPH08218579A (en) * | 1995-02-09 | 1996-08-27 | Matsushita Electric Works Ltd | Eave ventilation structure |
| JPH094157A (en) * | 1995-06-26 | 1997-01-07 | Matsushita Electric Works Ltd | Eaves edge drafting and fire preventing structure |
| JPH1113198A (en) * | 1997-06-20 | 1999-01-19 | Matsushita Electric Works Ltd | Sound-insulating fire-resisting ceiling structure |
| JPH11159018A (en) * | 1997-11-27 | 1999-06-15 | Natl House Ind Co Ltd | Ventilation structure for eave soffit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220163669A (en) * | 2021-06-03 | 2022-12-12 | 고의환 | Fire damper with improved refractory filler installation structure and construction method thereof |
| KR102557838B1 (en) * | 2021-06-03 | 2023-07-19 | 고의환 | Fire damper with improved refractory filler installation structure and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4933701B2 (en) | 2012-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101995447B1 (en) | Composite exterior structure for construction with integral flat inorganic layer | |
| JP5463113B2 (en) | Eaves structure | |
| KR102003327B1 (en) | Fireproof outer wall finishing method | |
| JP2002256632A (en) | Eave soffit section fire resistive structure and fire preventive damper | |
| JP2002256649A (en) | Fire preventive and fire resisting structure of eave soffit part, fire damper, and eave-soffit louver | |
| JP3961356B2 (en) | Building | |
| JP4790301B2 (en) | Building ventilation equipment | |
| JP4363608B2 (en) | Ventilation structure behind the hut | |
| JP2004353224A (en) | Wall structure and building | |
| JP4545969B2 (en) | Eaves top fireproof structure and parting material | |
| JP2003082783A (en) | Ventilation device | |
| JP3146130B2 (en) | Eaves vent ventilation fire protection structure | |
| JP4426889B2 (en) | Building walls and buildings | |
| JP5301890B2 (en) | Eaves fire protection structure | |
| JPH0827941A (en) | Ventilating structure of ceiling | |
| JP7399445B2 (en) | waterproof material | |
| JP3282954B2 (en) | Eaves ventilation and fire protection structure | |
| JP4820111B2 (en) | Building ventilation equipment | |
| KR20020064059A (en) | Unit Panel for Curtain Wall | |
| JP2000204697A (en) | Eave soffit ventilating structure | |
| JPH0882059A (en) | Eaves ventilating member | |
| EP4347971A1 (en) | A ventilated façade cladding system | |
| JPH09291669A (en) | Ventilation ridge | |
| JPH0886028A (en) | Fire-proof structure of eaves ventilation part | |
| JP4477917B2 (en) | Building walls and buildings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080116 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20101126 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20101130 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20110128 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20110628 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20110826 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120207 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120217 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150224 Year of fee payment: 3 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |