JP3435566B2 - Fire door - Google Patents
Fire doorInfo
- Publication number
- JP3435566B2 JP3435566B2 JP2000047168A JP2000047168A JP3435566B2 JP 3435566 B2 JP3435566 B2 JP 3435566B2 JP 2000047168 A JP2000047168 A JP 2000047168A JP 2000047168 A JP2000047168 A JP 2000047168A JP 3435566 B2 JP3435566 B2 JP 3435566B2
- Authority
- JP
- Japan
- Prior art keywords
- door
- door body
- small gap
- thermal expansion
- seal material
- 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.)
- Expired - Fee Related
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- Special Wing (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、冷凍倉庫、冷蔵倉
庫、定温倉庫、低温空調室等に用いる防火戸に関する。
【０００２】
【従来の技術】冷凍倉庫の戸は、出入口に断熱性を有す
るドアー本体を開閉自在に取付けて冷凍室内と冷凍室外
を断熱するものである。
【０００３】
【発明が解決しようとする課題】従来の冷凍倉庫の戸は
断熱性を向上することを重視しており、防火性について
は考慮されていない。一方、通常の建家に用いる戸とし
ては防火性を有する防火戸が種々提案されているが、こ
れらは断熱性については考慮されていないと共に、ドア
ー本体をヒンジにより回動自在として開閉する戸であ
り、２枚のドアー本体をスライドして一方のドアー本体
と他方のドアー本体を突き合せて閉じると共に、一方の
ドアー本体と他方のドアー本体を離間して開放する冷凍
倉庫の戸には適用できない。
【０００４】そこで、本発明は前述の課題を解決できる
ようにした防火戸を提供することを目的とする。
【０００５】
【課題を解決するための手段】本発明は、建物躯体１の
出入口３を、その建物躯体１の一側面１ａに沿ってスラ
イドする２枚のドアー本体１０で開閉する防火戸であっ
て、前記ドアー本体１０は、断熱材を不燃材で被覆した
形状で、前記一方のドアー本体１０の突き合せ面は平面
略台形状の凸部を有し、前記他方のドアー本体１０の突
き合せ面は平面略漏斗形状の凹部を有し、その凸部と凹
部の少なくとも一方に熱膨張シール材が設けられ、２枚
のドアー本体１０の少なくとも一方に、閉じた状態で突
き合せ部を気密する気密部材が設け、前記建物躯体１の
出入口３に沿った上突部５、左右の縦突部６は、内側部
５ａ，６ａと外側部５ｂ，６ｂで、その内側部５ａ，６
ａが外側部５ｂ，６ｂよりも突出した階段形状で、 前記
各ドアー本体１０の裏面不燃材の上縁部、戸尻側縦縁部
は、内側部と外側部で、その外側部が内側部よりも突出
した階段形状で、 この上縁部、戸尻側縦縁部と前記上突
部５、左右の縦突部６との間には内小間隙ａ、中間小間
隙ｂ、外小間隙ｃをそれぞれ形成し、 前記上突部５、左
右の縦突部６の外側部５ｂ，６ｂに、耐火シール材７と
熱膨張シール材８と耐火ガスケット９が三周連続し、か
つ膨張した熱膨張シール材８で中間小間隙ｂを閉塞して
耐火シール材７を囲繞するように取付けたことを特徴と
する防火戸。
【０００６】
【作 用】本発明によれば、２枚のドアー本体１０を閉
じると凹部と凸部が嵌まり合うと共に、突き合せ部を気
密部材で気密する。２枚のドアー本体１０は断熱性を有
する。このことによって、２枚のドアー本体１０の突き
合せ部から出入口３の内側と外側に熱が伝わることを防
止できる。火災時には熱膨張シール材が膨張して凹部と
凸部の嵌まり合った部分を閉塞して火炎が通らないよう
にする。ドアー本体１０は焼失しない。このことによっ
て、火災時に２枚のドアー本体１０の突き合せ部を火炎
が通ることがない。また、火災時には前記各熱膨張シー
ル材８が膨張して中間小間隙ｂを閉塞することで耐火シ
ール材７を囲繞し、その耐火シール材７の焼失を防止す
る。 しかも、中間小間隙ｂで膨張した熱膨張シール材８
が内小間隙ａ、外小間隙ｃから漏れ難く、中間小間隙ｂ
を確実に閉塞できる。 このようであるから、建物外壁１
の出入口３に沿った上突部５、左右の縦突部６とドアー
本体１０の裏面との間を火炎が通ることを防止できる。
したがって、断熱性を有する防火戸となる。
【０００７】一方のドアー本体１０の凸部は平面略台形
状で、他方のドアー本体１０の凹部が平面略漏斗形状で
あるから、２枚のドアー本体１０を引き寄せながら閉じ
るようにした場合でも凸部と凹部が干渉せずにスムーズ
に嵌まり合うことができる。
【０００８】
【発明の実施の形態】図１に示すように、建物壁体１に
は冷凍室２内に出入する出入口３が床４まで連続して形
成してあり、この出入口３は矩形状となっている。前記
建物壁体１の一側面１ａ（冷凍室２と反対側の側面）に
は上突部５と左右の縦突部６が出入口３の上内面３ａ、
左右の縦内面３ｂと連続として一体的に設けてある。前
記上突部５、縦突部６は出入口３の上内面３ａ、縦内面
３ｂと連続した内側部５ａ，６ａと、この内側部５ａ，
６ａと連続し、かつ内側部５ａ，６ａよりも突出寸法が
短かい外側部５ｂ，６ｂで階段形状である。前記上突部
５、縦突部６の外側部５ｂ，６ｂには図２に示すように
耐火シール材７と熱膨張シール材８と一対の耐火ガスケ
ット９がそれぞれ三周連続して取付けてある。この上突
部５、縦突部６は建物壁体１と別体として建物壁体１の
一側面１ａに取付けても良い。
【０００９】図３と図４に示すように、前記出入口３は
２枚のドアー本体１０で開閉される。この各ドア本体１
０の上面における突き合せ寄りと戸尻寄りに取付けたブ
ラケット１１に吊車１２がそれぞれ取付けてあり、その
各吊車１２を一対のレール１３に接してドアー本体１０
を走行自在に吊り下げ支承してあり、扉１０は扉駆動機
構１４で開閉移動される。前記レール１３、扉駆動機構
１４は建物壁体１の一側面１ａにおける出入口３よりも
上方位置に取付けてある。
【００１０】前記扉駆動機構１４は電動モータ１５で回
転される駆動スプロケット１６と従動スプロケット１７
にチェーン１８を巻掛け、そのチェーン１８をドアー本
体１０に連結具１９で連結したもので、電動モータ１５
で駆動スプロケット１６を正転、逆転することで２つの
ドアー本体１０が開き（離れる方向）移動、閉じ（接近
する方向）移動する。
【００１１】前記ドアー本体１０の戸尻寄り下部に引き
寄せ部材２０が取付けてあり、床４にはローラ２１が取
付けてある。ドアー本体１０が閉じ位置近くとなると引
き寄せ部材２０の斜面２２がローラ２１に接してドアー
本体１０は建物躯体１の一側面１ａに向けて移動する。
つまり、ドアー本体１０が引き寄せられる。具体的には
図４に示すように、床４にコ字状のブラケット２３が埋
め込みボルト２４で固着され、このブラケット２３にロ
ーラ縦軸２５が固着され、そのローラ縦軸２５にローラ
２１が回転自在に支承してある。
【００１２】前記レール１３は図５と図６に示すよう
に、一方のドアー本体１０の一対の吊車１２をそれぞれ
ガイドする２つのレール１３と他方のドアー本体１０の
一対の吊車１２をそれぞれガイドする２つのレール１３
を備えている。各レール１３は縦片２６と横片２７でＬ
字状で、その横片２７に丸棒２８が固着してあり、この
レール１３は開き側ガイド部２９と閉じ側ガイド部３０
を有している。開き側ガイド部２９は水平で建物躯体１
の一側面１ａと平行であり、閉じ側ガイド部３０は水平
に対して下向に傾斜し、建物壁体１の一側面１ａと平行
に対して一側面１ａに接近する方向に傾斜している。縦
片２６がブラケット３１で建物壁体１の一側面１ａに取
付けてある。
【００１３】このようであるから、ドアー本体１０が開
きエンド位置から閉じ位置近くまで移動する時には吊車
１２はレール１３の開き側ガイド部２９に沿って走行
し、閉じ位置近くから閉じ位置に移動する時には吊車１
２はレール１３の閉じ側ガイド部３０に沿って走行す
る。そして、閉じ側ガイド部３０は下方及び建物壁体１
に向けて傾斜しているから、ドアー本体１０が閉じエン
ド位置（２枚のドアー本体１０が突き当る位置）の時に
は開きエンド位置の時よりも下方にＨ１移動すると共
に、建物躯体１側にＬ１移動（引き寄せられる）する。
【００１４】前記ドアー本体１０は図７、図８、図９に
示すように、難燃処理した木材４０を方形枠組みし、そ
の内部に発泡ウレタンフォームなどの自己消火性の断熱
材４１を設けた芯材４２と、この芯材４２の上面、下
面、表面（建物壁体と反対側面）、裏面（建物壁体側の
面）、戸尻面（開き側縦面）、突き合せ面（閉じ側縦
面）にそれぞれ取付けた繊維混入けい酸カルシウム板な
どの上不燃板４３、下不燃板４４、表面不燃板４５、裏
面不燃板４６、戸尻不燃板４７、突き合せ不燃板４８
と、各不燃板の表面を覆う着色亜鉛めっき鋼板などの金
属板４９で断熱不燃ドアー本体１０としてある。
【００１５】前記裏面不燃板４６の上縁部、戸尻側縦縁
部は突出してドアー本体１０の裏面には上突起部５０と
左右の縦突起部５１を有し、上突起部５０は建物壁体１
の上突部５と相対向し、縦突起部５１は建物壁体１の縦
突部６と相対向している。
【００１６】図７に示すように、前記上突起部５０は内
側部５０ａと外側部５０ｂで階段形状で、外側部５０ｂ
が内側部５０ａよりも突出寸法が長い。ドアー本体１０
を閉じた状態で、内側部５０ａの内側寄りと内側部５ａ
との間に内小間隙ａを形成し、内側部５０ａの外側寄り
と外側部５ｂの内側寄りとの間に中間小間隙ｂを形成
し、外側部５０ｂと外側部５ｂの外側寄りとの間に外小
間隙ｃを形成する。前記内小間隙ａと外小間隙ｃの寸法
Ｌ−１は中間小間隙ｂの寸法Ｌ−２よりも小さく、かつ
内小間隙ａはドアー本体１０寄りで外小間隙ｃは建物外
壁１寄りであって位置がずれている。
【００１７】これによって、上突部５と上突起部５０と
の間には略クランク形状の小間隙を形成し、火炎が通り
難いと共に、耐火シール材７、耐火ガスケット９の取付
けスペースを確保できる。
【００１８】図８に示すように、前記縦突起部５１は内
側部５１ａと外側部５１ｂで階段形状で、外側部５１ｂ
が内側部５１ａよりも突出寸法が長い。ドアー本体１０
を閉じた状態で、内側部５１ａの内側寄りと内側部６ａ
との間に内小間隙ａを形成し、内側部５１ａの外側寄り
と外側部６ｂの内側寄りとの間に中間小間隙ｂを形成
し、外側部５１ｂと外側部６ｂの外側寄りとの間に外小
間隙ｃを形成する。前記内小間隙ａと外小間隙ｃの寸法
Ｌ−１は中間小間隙ｂの寸法Ｌ−２よりも小さく、かつ
内小間隙ａはドアー本体１０寄りで外小間隙ｃは建物外
壁１寄りであって位置がずれている。
【００１９】これによって、縦突部６と縦突起部５１と
の間には略クランク形状の小間隙を形成し、火炎が通り
難いと共に、耐火シール材７、耐火ガスケット９の取付
けスペースを確保できる。
【００２０】また、火災時には前記各熱膨張シール材８
が膨張して小間隙（中間小間隙ｂ）を閉塞することで耐
火シール材７を囲繞し、その耐火シール材７の焼失を防
止する。しかも、中間小間隙ｂで膨張した熱膨張シール
材８が内小間隙ａ、外小間隙ｃから漏れ難く、中間小間
隙ｂを確実に閉塞できる。このようであるから、建物外
壁１の一側面１ａとドアー本体１０の裏面との間を火炎
が通ることを防止できる。
【００２１】図７に示すように、ドアー本体１０の下面
には熱膨張シール材５２が面内方向（ドア幅方向）全長
に連続して取付けてある。この熱膨張シール材５２の表
面（下面）には断面略上向きコ字状の金物５３が固着し
てある。この金物５３は熱膨張シール材５２よりも下方
に突出し、ドアー本体１０のスライド時などに熱膨張シ
ール材５２が床４に接して損傷等することを防止する。
ドアー本体１０の下部表面と下部裏面にゴム片５４がそ
れぞれ取付けてあり、このゴム片５４が床４に接してい
る。
【００２２】火災時には熱膨張シール材５２が膨張して
ドアー本体１０の下面と床４との間を閉塞し、火炎が通
ることを防止する。
【００２３】図９は２つのドアー本体１０の突き合せ部
の横断面図である。左右一方のドアー本体１０の突き合
せ端面は厚さ方向中央部が厚さ方向両側部よりも突出
し、かつ突出した部分が平面略台形状である。例えば、
表面不燃板４５、裏面不燃板４６よりも突き合せ不燃板
４８が突出している。その突き合せ不燃板４８は幅広い
内側不燃板４８ａと、この内側不燃板４８ａの幅方向中
央部外面に固着した幅狭い外側不燃板４８ｂと、内側不
燃板４８ａと表面不燃板４５、裏面不燃板４６を連続す
る一対の不燃板４８ｃから成る。前記外側不燃板４８ｂ
の外面に熱膨張シール材５５が設けてある。
【００２４】前記金属板４９は熱膨張シール材５５部分
において表面側部分４９ａと裏面側部分４９ｂに分離し
て不連続で、その表面側部分４９ａ、裏面側部分４９ｂ
は表面不燃板４５、裏面不燃板４６の端面及び不燃板４
８ｃの表裏面、内側不燃板４８ａの表裏面、外面の表裏
面寄り部分に沿って略クランク形状に折り曲った部分
と、その部分と連続して斜めに折り曲って熱膨張シール
材５５を押える部分を有する。これによって、一方のド
アー本体１０の突き合せ端面は厚さ方向中央部分が平面
略台形状の凸部を有する形状で、その凸部に熱膨張シー
ル材５５が設けられ、かつその厚さ方向両端部が金属板
４９の表面側部分４９ａと裏面側部分４９ｂで押えられ
る。表面寄りに気密部材、例えば耐火ガスケット５６が
取付けてある。この耐火ガスケット５６は一方のドアー
本体１０の突き合せ端面よりも突出している。
【００２５】左右他方のドアー本体１０の突き合せ端面
は厚さ方向中央部が厚さ方向両側部よりも突出し、突出
した部分が平面略漏斗形状である。例えば、表面不燃板
４５、裏面不燃板４６よりも突き合せ不燃板４８が突出
している。その突き合せ不燃板４８は幅広い外側不燃板
４８ｄと、この外側不燃板４８ｄと表面不燃板４５、裏
面不燃板４６を連続する一対の不燃板４８ｅから成る。
前記外側不燃板４８ｄの外面に熱膨張シール材５７が設
けてある。
【００２６】前記金属板４９は熱膨張シール材５７部分
において表面側部分４９ｃと裏面側部分４９ｄに分離し
て不連続で、その表面側部分４９ｃ、裏面側部分４９ｄ
は表面不燃板４５、裏面不燃板４６の端面及び不燃板４
８ｃの表裏面、内側不燃板４８ａの表裏面、外面の表裏
面寄り部分に沿って略クランク形状に折り曲った部分
と、その部分と連続して斜めに折り曲って熱膨張シール
材５７を押える部分を有する。これによって、他方のド
アー本体１０の突き合せ端面は厚さ方向中央部分が平面
略漏斗形状の凹部を有する形状で、その凹部に熱膨張シ
ール材５７が設けられ、かつその厚さ方向両端部が金属
板４９の表面側部分４９ｃと裏面側部分４９ｄで押えら
れる。裏面寄りに気密部材、例えば耐火ガスケット５８
が取付けてある。この耐火ガスケット５８は他方のドア
ー本体１０の突き合せ端面よりも突出している。
【００２７】このようであるから、２枚のドアー本体１
０を閉じると一方のドアー本体１０の平面略台形状の凸
部と他方のドアー本体１０の平面略漏斗形状の凹部が嵌
まり合う。この時、２枚のドアー本体１０は下方に移動
しながら建物躯体１に引き寄せられるが、前記一方のド
アー本体１０の凸部、他方のドアー本体１０の凹部は相
対向した斜面を有するので、その凸部と凹部が干渉せず
にスムーズに嵌まり合う。これと同時に耐火ガスケット
５６，５８がドアー本体１０に接することで突き合せ部
を気密する。耐火ガスケット５６，５８が接する部分は
ヒータ５９で加温されて吸着しないようにしてある。
【００２８】火災時には熱膨張シール材５５，５７が熱
膨張して凹部と凸部の間を閉塞し、火炎が通ることを防
止する。なお、熱膨張シール材５５，５７、耐火ガスケ
ット５６，５８はそれぞれ一方のみとしても良い。
【００２９】
【発明の効果】請求項１に係る発明によれば、２枚のド
アー本体１０を閉じると凹部と凸部が嵌まり合うと共
に、突き合せ部を気密部材で気密する。２枚のドアー本
体１０は断熱性を有する。このことによって、２枚のド
アー本体１０の突き合せ部から出入口３の内側と外側に
熱が伝わることを防止できる。火災時には熱膨張シール
材が膨張して凹部と凸部の嵌まり合った部分を閉塞して
火炎が通らないようにする。ドアー本体１０は焼失しな
い。このことによって、火災時に２枚のドアー本体１０
の突き合せ部を火炎が通ることがない。また、火災時に
は前記各熱膨張シール材８が膨張して中間小間隙ｂを閉
塞することで耐火シール材７を囲繞し、その耐火シール
材７の焼失を防止する。 しかも、中間小間隙ｂで膨張し
た熱膨張シール材８が内小間隙ａ、外小間隙ｃから漏れ
難く、中間小間隙ｂを確実に閉塞できる。 このようであ
るから、建物外壁１の出入口３に沿った上突部５、左右
の縦突部６とドアー本体１０の裏面との間を火炎が通る
ことを防止できる。したがって、断熱性を有する防火戸
となる。
【００３０】一方のドアー本体１０の凸部は平面略台形
状で、他方のドアー本体１０の凹部が平面略漏斗形状で
あるから、２枚のドアー本体１０を引き寄せながら閉じ
るようにした場合でも凸部と凹部が干渉せずにスムーズ
に嵌まり合うことができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire door used for a freezing warehouse, a refrigerated warehouse, a constant temperature warehouse, a low temperature air-conditioning room, and the like. 2. Description of the Related Art A door of a freezing warehouse is provided with a door body having heat insulating properties at the entrance and exit so as to be freely opened and closed to insulate the freezing room and the outside of the freezing room. [0003] The door of a conventional freezer warehouse emphasizes the improvement of heat insulation, and does not consider fire prevention. On the other hand, fire doors having fire protection properties have been proposed as doors for use in ordinary buildings. Yes, it cannot be applied to a freezer warehouse door that slides two door bodies to abut one door body and the other door body and closes it, and separates and opens one door body and the other door body. . Accordingly, an object of the present invention is to provide a fire door capable of solving the above-mentioned problems. [0005] The present invention is a fire door that opens and closes an entrance 3 of a building frame 1 with two door bodies 10 that slide along one side 1a of the building frame 1. The door body 10 has a shape in which a heat insulating material is covered with a non-combustible material, the mating surface of the one door body 10 has a substantially trapezoidal convex portion in a plane, and the other door body 10 has a mating surface. The surface has a concave portion having a substantially flat funnel shape, and at least one of the convex portion and the concave portion is provided with a thermal expansion seal material, and at least one of the two door bodies 10 hermetically seals the butted portion in a closed state. An airtight member is provided, and
The upper protruding portion 5 along the entrance 3 and the left and right vertical protruding portions 6 are inner portions.
5a, 6a and outer portions 5b, 6b, the inner portions 5a, 6
a is the outer part 5b, in step shape that protrudes than 6b, the
Upper edge of the noncombustible material on the back of each door body 10, vertical edge on the door bottom side
Are the inner and outer parts, with the outer part protruding more than the inner part
Wherein the collision with the step shape, the upper edge, the door trailing side longitudinal edge
Between the part 5 and the left and right vertical protrusions 6, an inner small gap a, an intermediate booth
A gap b and an outer small gap c are formed, respectively ,
On the outer portions 5b, 6b of the right vertical protrusion 6, a fireproof seal material 7 is provided.
The thermal expansion sealing material 8 and the refractory gasket 9
The intermediate small gap b with the expanded thermal expansion sealing material 8
Characterized in that it is attached so as to surround the fireproof seal material 7.
Fire door. According to the present invention, when the two door bodies 10 are closed, the concave portion and the convex portion are fitted, and the butted portion is hermetically sealed with an airtight member. The two door bodies 10 have heat insulating properties. This can prevent heat from being transmitted from the abutting portion of the two door bodies 10 to the inside and outside of the entrance 3. In the event of a fire, the thermal expansion seal material expands to close the portion where the concave portion and the convex portion are fitted, so that the flame does not pass. The door body 10 does not burn out. This prevents the flame from passing through the butted portion of the two door bodies 10 in the event of a fire. In the event of a fire, the thermal expansion sheets
When the material 8 expands and closes the intermediate small gap b, the fireproof
Surrounding the sealing material 7 to prevent the fireproof sealing material 7 from burning out.
You. Moreover, the thermal expansion sealing material 8 expanded in the intermediate small gap b
Is difficult to leak from the inner small gap a and the outer small gap c, and the intermediate small gap b
Can be reliably closed. Because of this, the building outer wall 1
The upper protrusion 5 along the entrance 3 of the door, the left and right vertical protrusions 6 and the door
The flame can be prevented from passing between the back surface of the main body 10.
Therefore, the fire door has heat insulation. The convex portion of one of the door bodies 10 has a substantially trapezoidal planar shape, and the concave portion of the other door body 10 has a substantially funnel-shaped planar shape. Therefore, even when the two door bodies 10 are closed while being drawn, they are convex. The part and the recess can be fitted smoothly without interference. As shown in FIG. 1, an entrance 3 for entering and exiting a freezer compartment 2 is formed in a building wall 1 continuously to a floor 4, and the entrance 3 is rectangular. It has become. On one side 1a of the building wall 1 (the side opposite to the freezer compartment 2), an upper protrusion 5 and left and right vertical protrusions 6 are provided on the upper inner surface 3a of the entrance 3;
It is provided integrally and continuously with the left and right vertical inner surfaces 3b. The upper protruding portion 5 and the vertical protruding portion 6 have inner portions 5a and 6a continuous with the upper inner surface 3a and the vertical inner surface 3b of the entrance 3 and the inner portions 5a and 6a.
The outer portions 5b, 6b, which are continuous with the inner portions 6a and have a shorter projecting dimension than the inner portions 5a, 6a, have a stepped shape. As shown in FIG. 2, a refractory sealing material 7, a thermal expansion sealing material 8, and a pair of refractory gaskets 9 are attached to the outer portions 5b, 6b of the upper protruding portion 5 and the vertical protruding portion 6, respectively, for three consecutive rounds. . The upper protrusion 5 and the vertical protrusion 6 may be attached to one side surface 1a of the building wall 1 separately from the building wall 1. As shown in FIGS. 3 and 4, the entrance 3 is opened and closed by two door bodies 10. Each door body 1
A suspension wheel 12 is mounted on a bracket 11 mounted on the upper surface of the door body 10 near the abutment and the door bottom, respectively.
The door 10 is opened and closed by a door drive mechanism 14. The rail 13 and the door drive mechanism 14 are mounted at a position above the entrance 3 on one side surface 1 a of the building wall 1. The door driving mechanism 14 includes a driving sprocket 16 rotated by an electric motor 15 and a driven sprocket 17
A chain 18 is wound around the door, and the chain 18 is connected to the door body 10 by a connecting member 19.
By rotating the drive sprocket 16 forward and backward, the two door bodies 10 move open (to separate) and close (close to). A pulling member 20 is attached to the lower part of the door body 10 near the door bottom, and a roller 21 is attached to the floor 4. When the door main body 10 is close to the closed position, the slope 22 of the pulling member 20 comes into contact with the roller 21 and the door main body 10 moves toward one side 1a of the building frame 1.
That is, the door body 10 is pulled. Specifically, as shown in FIG. 4, a U-shaped bracket 23 is fixed to the floor 4 with embedded bolts 24, a roller longitudinal axis 25 is fixed to the bracket 23, and the roller 21 rotates on the roller longitudinal axis 25. It is freely supported. As shown in FIGS. 5 and 6, the rails 13 respectively guide two rails 13 for guiding a pair of hanging wheels 12 of one door body 10 and a pair of hanging wheels 12 for the other door body 10, respectively. Two rails 13
It has. Each rail 13 is L with vertical piece 26 and horizontal piece 27
A round bar 28 is fixed to the horizontal piece 27, and the rail 13 has an open side guide portion 29 and a closed side guide portion 30.
have. The opening side guide part 29 is horizontal and the building frame 1
Is parallel to one side surface 1a, and the closing side guide portion 30 is inclined downward with respect to the horizontal, and is inclined in a direction approaching the one side surface 1a with respect to the one side 1a parallel to the building wall 1. . The vertical piece 26 is attached to one side surface 1 a of the building wall 1 by a bracket 31. As described above, when the door body 10 moves from the open end position to the vicinity of the closing position, the hanging wheel 12 travels along the open side guide portion 29 of the rail 13 and moves from the vicinity of the closing position to the closing position. Sometimes hanging truck 1
2 travels along the closed side guide portion 30 of the rail 13. And, the closing side guide part 30 is located on the lower side and the building wall 1.
Because it is inclined towards, with H 1 moves downward than at the end open position when the end position door body 10 is closed (two door body 10 abuts position), the building structures 1 side L 1 move (are drawn). As shown in FIGS. 7, 8 and 9, the door main body 10 is made of a flame-retarded wood 40 having a rectangular frame, and a self-extinguishing heat insulating material 41 such as urethane foam is provided therein. The core material 42, the upper surface, the lower surface, the surface (the side opposite to the building wall), the back surface (the surface on the building wall side), the door end surface (opening vertical surface), and the butting surface (closed vertical) Upper non-combustible plate 43, lower non-combustible plate 44, front non-combustible plate 45, back non-combustible plate 46, door butt non-combustible plate 47, butted non-combustible plate 48, etc.
And a metal plate 49 such as a colored galvanized steel sheet covering the surface of each non-combustible plate to form the heat-insulating non-combustible door body 10. The upper edge of the back noncombustible plate 46 and the vertical edge of the door end side protrude and have an upper projection 50 and left and right vertical projections 51 on the back of the door body 10, and the upper projection 50 is a building. Wall 1
The vertical protrusion 51 faces the vertical protrusion 6 of the building wall 1. As shown in FIG. 7, the upper protrusion 50 has a stepped shape with an inner portion 50a and an outer portion 50b.
Has a longer protruding dimension than the inner portion 50a. Door body 10
Is closed, the inner side of the inner portion 50a and the inner portion 5a
And an intermediate small gap b is formed between the outer side of the inner part 50a and the inner side of the outer part 5b, and between the outer part 50b and the outer side of the outer part 5b. , An outer small gap c is formed. The dimension L-1 of the inner small gap a and the outer small gap c is smaller than the dimension L-2 of the intermediate small gap b, and the inner small gap a is closer to the door body 10 and the outer small gap c is closer to the building outer wall 1. It is out of place. As a result, a substantially crank-shaped small gap is formed between the upper protrusion 5 and the upper protrusion 50, so that the flame does not easily pass and the mounting space for the fireproof seal material 7 and the fireproof gasket 9 can be secured. . As shown in FIG. 8, the vertical protrusion 51 has a stepped shape with an inner portion 51a and an outer portion 51b.
Have a longer protruding dimension than the inner portion 51a. Door body 10
In the closed state, the inner side of the inner portion 51a and the inner portion 6a
And an intermediate small gap b is formed between the outer side of the inner portion 51a and the inner side of the outer portion 6b, and between the outer portion 51b and the outer side of the outer portion 6b. , An outer small gap c is formed. The dimension L-1 of the inner small gap a and the outer small gap c is smaller than the dimension L-2 of the intermediate small gap b, and the inner small gap a is closer to the door body 10 and the outer small gap c is closer to the building outer wall 1. It is out of place. As a result, a substantially crank-shaped small gap is formed between the vertical projection 6 and the vertical projection 51, so that it is difficult for the flame to pass through, and the mounting space for the fireproof seal material 7 and the fireproof gasket 9 can be secured. . In the event of a fire, each of the thermal expansion seals 8
Expands and closes the small gap (middle small gap b) to surround the refractory seal 7 and prevent the refractory seal 7 from burning out. Moreover, the thermal expansion sealing material 8 expanded in the intermediate small gap b is unlikely to leak from the inner small gap a and the outer small gap c, and the middle small gap b can be reliably closed. Thus, it is possible to prevent the flame from passing between the one side surface 1a of the building outer wall 1 and the back surface of the door body 10. As shown in FIG. 7, a thermal expansion sealing material 52 is attached to the lower surface of the door body 10 continuously over the entire length in the in-plane direction (the door width direction). A metal member 53 having a substantially U-shaped cross section is fixed to the surface (lower surface) of the thermal expansion sealing material 52. The metal member 53 protrudes downward from the thermal expansion sealing material 52 to prevent the thermal expansion sealing material 52 from being in contact with the floor 4 and being damaged when the door body 10 slides.
Rubber pieces 54 are respectively attached to the lower surface and the lower back surface of the door body 10, and the rubber pieces 54 are in contact with the floor 4. In the event of a fire, the thermal expansion sealing material 52 expands and closes the gap between the lower surface of the door body 10 and the floor 4 to prevent the passage of a flame. FIG. 9 is a cross-sectional view of the butted portion of the two door bodies 10. The butt end surfaces of the left and right door bodies 10 have a central portion in the thickness direction protruding from both sides in the thickness direction, and the protruding portion has a substantially trapezoidal planar shape. For example,
The noncombustible plate 48 protrudes from the front noncombustible plate 45 and the rear noncombustible plate 46. The butted non-combustible plate 48 has a wide inner non-combustible plate 48a, a narrow outer non-combustible plate 48b fixed to the outer surface at the center in the width direction of the inner non-combustible plate 48a, the inner non-combustible plate 48a and the front non-combustible plate 45, and the back non-combustible plate 46. Is formed from a pair of non-combustible plates 48c. The outer non-combustible plate 48b
A thermal expansion sealing material 55 is provided on the outer surface of the. The metal plate 49 is separated into a front side portion 49a and a back side portion 49b in the thermal expansion sealing material 55 and is discontinuous, and the front side portion 49a and the back side portion 49b are separated.
Are the front non-combustible plate 45, the end face of the rear non-combustible plate 46 and the non-combustible plate 4.
8c, a front and back surface of the inner non-combustible plate 48a, a portion bent into a substantially crank shape along a portion of the outer surface closer to the front and back surfaces, and the portion is bent obliquely continuously with the portion to press the thermal expansion seal material 55. With parts. As a result, the butt end surface of one of the door bodies 10 has a shape having a substantially trapezoidal projection at the center in the thickness direction, and the thermal expansion sealing material 55 is provided on the projection, and both ends in the thickness direction are provided. The portion is pressed by the front side portion 49a and the back side portion 49b of the metal plate 49. An airtight member, for example, a refractory gasket 56 is mounted near the surface. The refractory gasket 56 protrudes from the butt end face of one of the door bodies 10. The butting end surfaces of the other door body 10 at the left and right sides have a central portion in the thickness direction protruding from both sides in the thickness direction, and the protruding portion has a substantially flat funnel shape. For example, a butt noncombustible plate 48 protrudes from the front noncombustible plate 45 and the back noncombustible plate 46. The butted noncombustible plate 48 is composed of a wide outside noncombustible plate 48d, and a pair of noncombustible plates 48e that connect the outer noncombustible plate 48d, the front noncombustible plate 45, and the back noncombustible plate 46.
A thermal expansion sealing material 57 is provided on the outer surface of the outer non-combustible plate 48d. The metal plate 49 is discontinuously separated into a front side portion 49c and a back side portion 49d at the thermal expansion seal material 57, and the front side portion 49c and the back side portion 49d are discontinuous.
Are the front non-combustible plate 45, the end face of the rear non-combustible plate 46 and the non-combustible plate 4.
8c, a front and back surface of the inner non-combustible plate 48a, a portion bent into a substantially crank shape along a portion of the outer surface closer to the front and back surfaces, and the portion is bent obliquely continuously with the portion to press the thermal expansion seal material 57. With parts. As a result, the butt end surface of the other door body 10 has a shape in which a central portion in the thickness direction has a recess having a substantially flat funnel shape, a thermal expansion seal material 57 is provided in the recess, and both ends in the thickness direction are formed. The metal plate 49 is pressed by the front side portion 49c and the back side portion 49d. An airtight member such as a refractory gasket 58
Is installed. This refractory gasket 58 protrudes from the butt end face of the other door body 10. Because of this, the two door bodies 1
When 0 is closed, the substantially trapezoidal convex portion of one door main body 10 and the substantially funnel-shaped concave portion of the other door main body 10 fit together. At this time, the two door bodies 10 are drawn to the building frame 1 while moving downward. However, since the convex portion of the one door body 10 and the concave portion of the other door body 10 have opposite slopes, The protrusions and recesses fit smoothly without interference. At the same time, the refractory gaskets 56 and 58 come into contact with the door body 10 to hermetically seal the butted portion. The portion where the refractory gaskets 56 and 58 are in contact is heated by the heater 59 so as not to be adsorbed. In the event of a fire, the thermal expansion seal members 55 and 57 thermally expand to close the gap between the concave portion and the convex portion, thereby preventing the flame from passing. The thermal expansion seal members 55 and 57 and the refractory gaskets 56 and 58 may each be only one. According to the first aspect of the present invention, when the two door bodies 10 are closed, the concave portion and the convex portion are fitted together, and the butted portion is hermetically sealed by the airtight member. The two door bodies 10 have heat insulating properties. This can prevent heat from being transmitted from the abutting portion of the two door bodies 10 to the inside and outside of the entrance 3. In the event of a fire, the thermal expansion seal material expands to close the portion where the concave portion and the convex portion are fitted, so that the flame does not pass. The door body 10 does not burn out. This allows the two door bodies 10 to be
The flame does not pass through the butted portion. Also in case of fire
Means that the thermal expansion sealing material 8 expands to close the intermediate small gap b.
The fireproof seal material 7 is surrounded by closing the fireproof seal material 7.
The material 7 is prevented from burning out. Moreover, it expands at the intermediate small gap b.
Leaked from the inner small gap a and the outer small gap c
It is difficult to reliably close the intermediate small gap b. Like this
The upper protrusion 5 along the entrance 3 of the building outer wall 1
Flame passes between the vertical projection 6 of the door and the back of the door body 10.
Can be prevented. Therefore, the fire door has heat insulation. The convex portion of one of the door bodies 10 has a substantially trapezoidal planar shape, and the concave portion of the other door body 10 has a substantially funnel-shaped planar shape. Therefore, even when the two door bodies 10 are closed while being drawn, they are convex. The part and the recess can be fitted smoothly without interference.
【図面の簡単な説明】
【図１】建物躯体の出入口部分の斜視図である。
【図２】図１のＡ−Ａ拡大正面図である。
【図３】防火戸の全体正面図である。
【図４】引き寄せ部分の側面図である。
【図５】レールの拡大正面図である。
【図６】図５の平面図である。
【図７】ドアー本体の縦断面図である。
【図８】ドアー本体の横断面図である。
【図９】２枚のドアー本体の突き合せ部の横断面図であ
る。
【符号の説明】
１…建物躯体、１ａ…一側面、３…出入口、４…床、１
０…ドアー本体、１３…レール、５５…熱膨張シール
材、５６…耐火ガスケット、５７…熱膨張シール材、５
８…耐火ガスケット。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an entrance / exit portion of a building frame. FIG. 2 is an AA enlarged front view of FIG. 1; FIG. 3 is an overall front view of a fire door. FIG. 4 is a side view of a drawing portion. FIG. 5 is an enlarged front view of a rail. FIG. 6 is a plan view of FIG. 5; FIG. 7 is a vertical sectional view of a door body. FIG. 8 is a cross-sectional view of the door body. FIG. 9 is a cross-sectional view of a butted portion of two door bodies. [Description of Signs] 1 ... building frame, 1a ... one side, 3 ... doorway, 4 ... floor, 1
0: Door body, 13: Rail, 55: Thermal expansion sealing material, 56: Fireproof gasket, 57: Thermal expansion sealing material, 5
8 ... Fireproof gasket.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山嵜 啓介 埼玉県加須市大門町７−10 (56)参考文献 特開 平11−247544（ＪＰ，Ａ) 実開 昭61−115481（ＪＰ，Ｕ) 実開 昭58−21678（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) E06B 5/16,7/16 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Keisuke Yamazaki, Inventor 7-10 Daimon-cho, Kazo City, Saitama Prefecture (56) References JP-A-11-247544 (JP, A) 58-21678 (JP, U) (58) Field surveyed (Int. Cl. 7 , DB name) E06B 5/16, 7/16
Claims (1)
１の一側面１ａに沿ってスライドする２枚のドアー本体
１０で開閉する防火戸であって、 前記ドアー本体１０は、断熱材を不燃材で被覆した形状
で、 前記一方のドアー本体１０の突き合せ面は平面略台形状
の凸部を有し、前記他方のドアー本体１０の突き合せ面
は平面略漏斗形状の凹部を有し、その凸部と凹部の少な
くとも一方に熱膨張シール材が設けられ、 ２枚のドアー本体１０の少なくとも一方に、閉じた状態
で突き合せ部を気密する気密部材が設け、前記建物躯体１の出入口３に沿った上突部５、左右の縦
突部６は、内側部５ａ，６ａと外側部５ｂ，６ｂで、そ
の内側部５ａ，６ａが外側部５ｂ，６ｂよりも突出した
階段形状で、 前記各ドアー本体１０の裏面不燃材の上縁部、戸尻側縦
縁部は、内側部と外側部で、その外側部が内側部よりも
突出した階段形状で、 この上縁部、戸尻側縦縁部と前記上突部５、左右の縦突
部６との間には内小間隙ａ、中間小間隙ｂ、外小間隙ｃ
をそれぞれ形成し、 前記上突部５、左右の縦突部６の外側部５ｂ，６ｂに、
耐火シール材７と熱膨張シール材８と耐火ガスケット９
が三周連続し、かつ膨張した熱膨張シール材８で中間小
間隙ｂを閉塞して耐火シール材７を囲繞するように取付
けたことを特徴とする防火戸。 (1) A fire door which opens and closes an entrance / exit 3 of a building frame 1 with two door bodies 10 sliding along one side surface 1a of the building frame 1. The door body 10 has a shape in which a heat insulating material is covered with a non-combustible material. The mating surface of the one door body 10 has a substantially trapezoidal convex portion in a plane, and the mating surface of the other door body 10 is A hermetic member having a substantially funnel-shaped recess in a plane, a thermal expansion sealing material provided on at least one of the projection and the recess, and at least one of the two door bodies 10 sealing the butted portion in a closed state. Is provided, an upper protruding portion 5 along the entrance 3 of the building frame 1,
The protrusion 6 has inner portions 5a, 6a and outer portions 5b, 6b.
Inner portions 5a and 6a protrude more than outer portions 5b and 6b
In the form of steps, the upper edge of the noncombustible material on the back of each door body 10, the vertical side of the door bottom
The edges are the inner and outer parts, the outer part of which is
In protruding stepped shape, the upper edge, the upper protrusion 5 and door trailing side longitudinal edge, the left and right Tate突
The inner small gap a, the intermediate small gap b, and the outer small gap c
Are formed respectively, and the outer protrusions 5b, 6b of the upper protrusion 5 and the left and right vertical protrusions 6
Fireproof seal material 7, thermal expansion seal material 8, and fireproof gasket 9
Is small in the middle with the expanded thermal expansion seal material 8 for three consecutive rounds.
Attached so as to close the gap b and surround the fireproof seal material 7
A fire door characterized by being fired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000047168A JP3435566B2 (en) | 2000-02-24 | 2000-02-24 | Fire door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000047168A JP3435566B2 (en) | 2000-02-24 | 2000-02-24 | Fire door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001234672A JP2001234672A (en) | 2001-08-31 |
| JP3435566B2 true JP3435566B2 (en) | 2003-08-11 |
Family
ID=18569462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000047168A Expired - Fee Related JP3435566B2 (en) | 2000-02-24 | 2000-02-24 | Fire door |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3435566B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011220628A (en) * | 2010-04-12 | 2011-11-04 | Mizuta:Kk | Adiabatic door |
| JP2015145618A (en) * | 2015-05-18 | 2015-08-13 | 三協立山株式会社 | Fixtures |
| KR102318949B1 (en) * | 2021-04-02 | 2021-10-27 | 김성배 | Double swing type fire door having close type windbreaker |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5700680B2 (en) * | 2011-10-24 | 2015-04-15 | Ykk Ap株式会社 | Fire door |
| JP6567944B2 (en) * | 2015-10-09 | 2019-08-28 | ナブテスコ株式会社 | Fire door |
-
2000
- 2000-02-24 JP JP2000047168A patent/JP3435566B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011220628A (en) * | 2010-04-12 | 2011-11-04 | Mizuta:Kk | Adiabatic door |
| JP2015145618A (en) * | 2015-05-18 | 2015-08-13 | 三協立山株式会社 | Fixtures |
| KR102318949B1 (en) * | 2021-04-02 | 2021-10-27 | 김성배 | Double swing type fire door having close type windbreaker |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001234672A (en) | 2001-08-31 |
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