JP4280032B2

JP4280032B2 - Elevator door device

Info

Publication number: JP4280032B2
Application number: JP2002173302A
Authority: JP
Inventors: みずき山内
Original assignee: Fujitec Co Ltd
Current assignee: Fujitec Co Ltd
Priority date: 2002-05-10
Filing date: 2002-06-13
Publication date: 2009-06-17
Anticipated expiration: 2022-06-13
Also published as: JP2004026316A

Description

【０００１】
【発明の属する技術分野】
本発明は、エレベータの乗場出入口から煙が昇降路内へ流入或いは昇降路内から乗場側へ煙が流出するのを防止するドア装置の改良に関するものである。尚、本願において「煙の侵入」と表現する場合は、煙の流入或いは流出、何れの場合をも意味するものとする。
【０００２】
【従来の技術】
従来装置としては、図２乃至図４に示すものが提案されている。
即ち、図２は従来のエレベータ用乗場遮煙ドア装置の正面図、図３は図２のＡ−Ａ線矢視図、図４は図２のＢ−Ｂ線矢視図である。
【０００３】
図において、１はエレベータ乗場出入口において両側に開く乗場扉、２は出入口縦枠、３は出入口上枠、４は敷居で、出入口縦枠２と出入口上枠３と敷居４とにより乗場出入口の開口部を形成している。５ａは乗場扉１の側部に設けて出入口縦枠２との隙間を塞ぐ遮煙材、５ｂは乗場扉１と出入口上枠３との隙間を塞ぐ遮煙材、５ｃは敷居４の溝４ａに挿入されて隙間を塞ぐ遮煙材である。尚、６はそれぞれの遮煙材５ａ，５ｂ，５ｃを取付けるネジである。
【０００４】
このように構成されたエレベータ用乗場遮煙ドア装置は、乗場扉１の周囲に設けられた遮煙材５ａ，５ｂ，５ｃによって、戸閉時に出入口縦枠２、出入口上枠３、敷居４との間の隙間を塞ぐことにより、火災が発生しても、煙が昇降路内へ流入しないようにして、昇降路を通じ他の階床へ煙が広がらないようにしている。そして、例えば実開昭50-79184号公報や特開昭63-112389号公報で開示されている技術などは、この種の遮煙材に関するものである。
【０００５】
【発明が解決しようとする課題】
しかし、従来の装置では、遮煙材５ａ，５ｂ，５ｃが常に対向面に接することになるため、通常の扉の開閉を通じて当然摩耗することになり、その結果メンテナンスを適切に行わなければならない。又、乗場扉１の開閉を円滑に行ったりすることも極めて困難で、常に摺動音に悩まされることになる。
【０００６】
又、最近のエレベータは、機械室を持たないエレベータ、即ち駆動モータや制御盤などの火元となりうる機器が昇降路内に設置されるタイプのエレベータ（所謂マシーンルームレスエレベータ）が増加しており、通常の火事の時における建物の中が火元になる場合と合せて煙の侵入方向が例え乗場・昇降路の何れ側からであっても適切に防止できる対策が必要になってきており、さらに、従来の装置では、図５に示すように、特に乗場扉１相互の上方及び下方における戸当たり部の隙間７や図１７の矢印に示す箇所では、三つ以上の部材が対向しているため、隙間を塞いで、煙の侵入を適切に防止する工夫も欠かせない。
【０００７】
本発明は、上記の点に鑑みなされたもので、通常の扉開閉動作時に特に支障を来すことなく、遮煙性能に優れたエレベータ用ドア装置を提供することを目的とする。
【０００８】
【課題を解決するための手段】
本発明は、乗場から昇降路に通じる出入口に設けられた上枠及び縦枠からなる出入口枠と、該出入口枠に隙間を隔てて配置され敷居に案内されて前記出入口枠の開口部を開閉する乗場扉を備えたエレベータにおいて、前記乗場扉の上部と側部と底部或いは前記乗場扉の上部と側部と底部に対向する対向部材の少なくとも一方には、煙の侵入を阻止する遮煙部材を備え、前記上部或いは底部の遮煙部材は、下方の先端に向けて開放されたハの字形状で、かつ周囲の気圧差により変形する部材としたものである。
また本発明は、乗場から昇降路に通じる出入口に設けられた上枠及び縦枠からなる出入口枠と、該出入口枠に隙間を隔てて配置され敷居に案内されて前記出入口枠の開口部を開閉する乗場扉を備えたエレベータにおいて、前記乗場扉の上部と側部と底部或いは前記乗場扉の上部と側部と底部に対向する対向部材の少なくとも一方には、煙の侵入を阻止する遮煙部材を備え、前記上部或いは底部の遮煙部材は、下方の先端に向けて開放されたハの字形状で、かつ周囲の気圧差により移動する部材を介して取付けられている構成としたものである。
【０００９】
【発明の実施の形態】
本発明は、騒音の発生を適度に抑えると共に、言わば盲点と見られる隙間についても適切に遮蔽できるエレベータドア装置を構成するものである。
【００１０】
【実施例】
以下、本発明の一実施例について、図面を用いて説明する。
図１は、本発明に係るエレベータ用ドア装置の一例を示す透視平面図、図６は図１におけるドア装置の下部部分正面図、図７は図６におけるドア装置の上部部分正面図、図８は図１のＰ部拡大図、図９は図６のＱ部拡大図、図１０は図６のＡ-Ａ線矢視図、図１１は図６のＢ-Ｂ線矢視図、図１２は図６のＣ-Ｃ線矢視図、図１３は図７のＲ部拡大図、図１４は図１３のＤ-Ｄ線矢視図、図１５は乗場扉１０と縦枠２との関係を示す拡大平面図である。
【００１１】
図中、図２乃至図５と同一符号のものは同一のものを示すが、図７に示す１０は周知のドアハンガー９に吊り下げられた本発明に係る乗場扉で、１０ａ（図１、図６、図８、図９及び図１１に図示）は敷居４の溝４ａに案内されるガイドシューで、乗場扉１０の底部にブラケット１０ｂ（図１１に図示）を介して取付けられている。図９及び図１０に示す１１は例えば先端に向けて開放されたハの字形状の難燃性ゴムからなる遮煙材で、乗場扉１０の底部にブラケット１０ｃを介して凹部に嵌合するように取付けられており、ガイドシュー１０ａの取付部分以外の部分に設けられている。この乗場扉１０には、図示しないが周知の通り、錘による戸閉力が常時付与されている構造になっている。
【００１２】
図９及び図１２に示す１２，１２′は乗場扉１０の側部に設けられた遮煙材の働きも有する戸当たりゴムで、下方では敷居４の溝４ａに入り込むまで、即ち遮煙材１１の端部を覆う位置まで垂れ下がっている。即ち、この戸当たりゴム１２，１２′と遮煙材１１とは例えば同一垂直平面上に位置するように配置され、接触可能な状態に配置されている。この戸当たりゴム１２と戸当たりゴム１２′とには乗場扉１０が閉鎖した時にお互いがしっかりと密着するように、例えば片方に凹部、他方に凸部が形成され、隙間なく接触できるように構成されている。
【００１３】
この遮煙材１１は、扉の開閉時にはハの字の先端が敷居溝４ａの側壁に接触しないように撓むことができるので、通常の開閉時には遮煙材１１の先端の摩耗を抑えることができ、火災時には火災室側の空気が熱膨張し、高圧の煙を含んだ空気が扉の下部を通って逃げようとするが、扉の下端に設けられた遮煙材１１内に空気が流入した際に、非火災室側のハの字遮煙材が敷居溝４ａの側壁に押付けられるため、煙の流れる方向に応じて十分な気密性が確実に確保される。ここで、乗場扉１０の閉鎖時には戸閉力により戸当たりゴム１２，１２′と遮煙材１１とが適度に接触することにより前述の作用効果も加わって、下方の隙間を塞ぐことができる。この遮煙材１１の形状については、ハの字の先端が少し内方向に曲がったものであってもよい。尚、左右の乗場扉１０が閉鎖した際に、この乗場扉１０に設けられた前述の遮煙材１１どうしを適度に接触させることにより、この戸当たりゴム１２，１２′の垂れ下がりを無くすことも可能である。
【００１４】
一方、図１３に示す１３，１３′は乗場扉１０の上端に設けられた遮煙材で、戸当たりゴム１２，１２′と同様に、乗場扉１０が閉鎖した時に戸閉力によりお互いがしっかりと密着するように片方に凹部、他方に凸部が形成され、隙間なく接触できるように構成されている。そして、戸当たりゴム１２，１２′と、戸当たりゴム１２，１２′に接する位置に配置された遮煙材１３とにより、乗場扉１０の閉鎖時には確実に上方の隙間が無くなるように構成されている。したがって、乗場扉１０が閉鎖した状態では戸閉力により、単に乗場扉１０相互間の隙間だけでなく、上部と下部における隙間についても適度に塞げる構造になっている。このように隙間なく接触できる構成については、単に凹部と凸部との嵌合以外にも種々考えられ、当然ながら実施例に限定されるものではない。
【００１５】
そして、図７及び図１４に示す２０は乗場扉１０の上端に傾斜状に設けられたＵ溝ブラケット１４の中に取外し自在に嵌入された、例えば中空の遮煙材で、反縦枠２側ほど上に位置するように配置されている。２１は上枠３に対し上下方向に調整自在に設けられた当て板で、乗場扉１０の閉鎖時には遮煙材２０と接触して隙間を塞ぐように取付けられている。この当て板２１も反縦枠２側ほど上に位置するように配置されている。ここで、左右の乗場扉１０が閉鎖した際に、この対向する乗場扉１０に設けられた遮煙材２０どうしを接触させるように配置することにより、前述の遮煙材１３，１３′を無くすことも可能である。
【００１６】
次に、図１５の図１５（ａ）は乗場扉１０と縦枠２と上枠３との関係を示す分解斜視拡大図で、図１５（ｂ）は図１５（ａ）の部分正面図である。図中、１５は乗場扉１０の側面に設けられたＬ字状ブラケットで、このブラケット１５には遮煙材３０を有するブラケット３１（ブラケット３１に設けられたＵ溝ブラケット３２の中に取外し自在に遮煙材３０が嵌入されている）が乗場扉１０の幅方向に長穴１５ａを通じて調整自在に取付けられ、遮煙材２０と遮煙材３０とが常時接触するように取付けられる。つまり、遮煙材２０と遮煙材３０とは同一垂直平面上に配置するのが一番望ましい。２２は上方に延出するように縦枠２に設けられたブラケットで、上枠３が縦枠２の上方を覆うように縦枠２上に載置されるので、ブラケット２２は上枠３の側面の一部を覆うように配置されている。そして、４０はこの遮煙材３０の上方を覆うカバーである。乗場扉１０が閉鎖する際には、ブラケット２２の片面に遮煙材３０が圧接されることにより、乗場扉１０と縦枠２と上枠３との隙間が遮煙材２０と遮煙材３０とにより、適切に塞がれる構造になっている。
【００１７】
尚、別の実施例としては、例えば図１８に示すような構成も考えられる。即ち、Ｌ字状ブラケット１５′、ブラケット３１′及び遮煙材３０は縦枠２の高さまでしかなく、このため取付面にゴムが貼付されたＬ字状ブラケット３３（例えば、遮煙材２０と遮煙材３０の同一平面上に配置）により、上枠３の側面と縦枠２の上面とを同時に覆って隙間を無くすようにしたものである。
【００１８】
したがって、左右の乗場扉１０が閉鎖された場合には、縦枠２と乗場扉１０との隙間は遮煙材３０により塞がれ、上枠３と乗場扉１０との隙間は遮煙材２０により、また乗場扉１０どうしの隙間については戸当たりゴム１２，１２′により、乗場扉１０と敷居４との隙間は遮煙材１１により、さらに乗場扉１０どうしと敷居４との隙間については、遮煙材１１及び戸当たりゴム１２，１２′により、乗場扉１０どうしと上枠３との隙間については、戸当たりゴム１２，１２′及び遮煙材１３，１３′或いは遮煙材２０どうしにより塞がれ、乗場から昇降路内への煙の流入や昇降路内から乗場側への煙の流出を確実に防止することができる。
【００１９】
ところで、これらの遮煙材２０、３０及び遮煙材１１については、それぞれの役割・機能・性質などに応じて材質や形状を決める方が良いと考えられる。即ち、遮煙材３０の場合は、表面が単に押圧されるだけの部材のため、遮煙性能を満たせばよいだけで、摩擦の伴った動きについて考慮する必要はない。一方、遮煙材１１の場合は扉の開閉動作に伴って常に、敷居４に対して相対運動を起こすため、遮煙性能だけでなく摩擦に対する考慮（振動や騒音対策など）も必要であり、円滑な摺動動作も行える機能が要求される。又、遮煙材２０の場合は扉の閉鎖間際において当て板２１との相対運動による摩擦も受けるため、遮煙材１１程ではないとしても円滑な摺動動作も行える機能が要求される。即ち、遮煙性能と摺動性能との両方の性質を合せ持つことが望ましい。
【００２０】
火災時には特に、気温や気圧が変動するため、この気温・気圧差の変化によって変形する部材、例えば遮煙材２０、３０の場合は中空部分が多少膨らんだり、遮煙材１１の場合は煙の流れる方向に従ってハの字形状が変形するようなものが効果的である。又、気圧差に応じて遮煙材の形状が変化する場合以外にも、例えば遮煙材を支持する部材（Ｕ溝ブラケットなど）を移動自在に構成しても同様の効果を得ることができる。尚、遮煙性能に関する規程上は扉の両側の圧力差が１９．６Ｐａの時の漏煙量が０．２ｍ³／ｍｉｎ＊ｍ²以下であればよいことになっているため、完全な遮煙性能までは要求されないので、必ずしも部材どうしの完全密着の必要はない。
【００２１】
ここで図１６は、遮煙材２０′として遮煙材１１と同じ部材を使用している場合を示す。このようにできるだけ部品を共用するように工夫すれば、部品点数をそれだけ少なく抑えることができ、好都合である。しかし、その部材に要求される性質・役割・機能に応じて適宜、材質や形状を選択して決めればよいことは言うまでもない。
【００２２】
【発明の効果】
以上述べたように本発明によれば、通常の扉の開閉時に振動や騒音などの障害が生じる虞は極めて少なく、扉が閉鎖すれば、乗場扉と出入口枠及び敷居との隙間をその場の状況に応じて確実に塞ぐため、何時いかなる時に火災が発生したとしても、適切に煙の侵入を防ぐことができる。又、この遮煙・防煙機能のための特別な駆動機構や装置を設ける必要も無い。さらに、既設のエレベータに追加採用することもできるメリットがある。
【図面の簡単な説明】
【図１】本発明に係るエレベータ用ドア装置の一例を示す平面図である。
【図２】従来のエレベータ用乗場遮煙ドア装置の正面図である。
【図３】図２のＡ−Ａ線矢視図である。
【図４】図２のＢ−Ｂ線矢視図である。
【図５】従来技術の問題点を説明する図である。
【図６】図１におけるドア装置の下部部分正面図である。
【図７】図６におけるドア装置の上部部分正面図である。
【図８】図１のＰ部拡大図である。
【図９】図６のＱ部拡大図である。
【図１０】図６のＡ-Ａ線矢視図である。
【図１１】図６のＢ-Ｂ線矢視図である。
【図１２】図６のＣ-Ｃ線矢視図である。
【図１３】図７のＲ部拡大図である。
【図１４】図１３のＤ-Ｄ線矢視図である。
【図１５】乗場扉１０と縦枠２及び上枠３との関係を示す分解拡大斜視図と部分正面図である。
【図１６】本発明のその他の実施例を示す図１４対応図である。
【図１７】従来技術の問題点を説明する図である。
【図１８】乗場扉１０と縦枠２及び上枠３との関係を示すその他の分解拡大斜視図と部分正面図である。
【符号の説明】
１，１０乗場扉
２出入口縦枠
３出入口上枠
４敷居
４ａ敷居４の溝
１０ａ乗場扉１０のガイドシュー
１２戸当たりゴム
５ａ，５ｂ，５ｃ，１１，１３，２０，３０，２０′ 遮煙材
１４，３２Ｕ溝ブラケット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a door device that prevents smoke from flowing into a hoistway from the hall entrance / exit of an elevator or outflowing from the hoistway to the hall side. In the present application, the expression “smoke intrusion” means any inflow or outflow of smoke.
[0002]
[Prior art]
As conventional devices, those shown in FIGS. 2 to 4 have been proposed.
That is, FIG. 2 is a front view of a conventional elevator smoke-proof door device for elevators, FIG. 3 is a view taken along line AA in FIG. 2, and FIG. 4 is a view taken along line BB in FIG.
[0003]
In the figure, 1 is a landing door that opens on both sides at an elevator hall entrance, 2 is an entrance vertical frame, 3 is an entrance upper frame, 4 is a sill, and the entrance entrance is opened by the entrance vertical frame 2, entrance upper frame 3 and sill 4. Forming part. 5a is a smoke shielding material provided on the side of the landing door 1 to block the gap between the entrance and exit vertical frame 2, 5b is a smoke shielding material that blocks the clearance between the landing door 1 and the entrance upper frame 3, and 5c is a groove 4a of the sill 4. It is a smoke shielding material that is inserted into and closes the gap. In addition, 6 is a screw which attaches each smoke shielding material 5a, 5b, 5c.
[0004]
The elevator hall smoke-proof door device configured as described above includes an entrance vertical frame 2, an entrance upper frame 3, and a sill 4 when the door is closed by smoke shielding materials 5 a, 5 b, and 5 c provided around the hall door 1. By closing the gap between the two, even if a fire occurs, smoke does not flow into the hoistway so that it does not spread to other floors through the hoistway. For example, techniques disclosed in Japanese Utility Model Laid-Open No. 50-79184 and Japanese Patent Laid-Open No. 63-112389 relate to this type of smoke barrier material.
[0005]
[Problems to be solved by the invention]
However, in the conventional apparatus, since the smoke shielding materials 5a, 5b, and 5c are always in contact with the opposed surfaces, they are naturally worn through normal opening and closing of the door, and as a result, maintenance must be performed appropriately. Moreover, it is extremely difficult to open and close the landing door 1 smoothly, and always suffers from sliding noise.
[0006]
Moreover, recent elevators are increasing in number of elevators that do not have a machine room, that is, elevators that are installed in hoistways such as drive motors and control panels (so-called machine roomless elevators). In addition to the case where the inside of the building at the time of a normal fire becomes the source of fire, measures that can appropriately prevent smoke intrusion direction from any side of the landing / hoistway are needed, Further, in the conventional apparatus, as shown in FIG. 5, three or more members are opposed to each other particularly in the gap 7 of the door stop portion above and below the landing doors 1 and in the position shown by the arrow in FIG. Therefore, it is indispensable to devise measures to close the gap and appropriately prevent the intrusion of smoke.
[0007]
The present invention has been made in view of the above points, and an object of the present invention is to provide an elevator door device having excellent smoke shielding performance without causing any particular trouble during normal door opening and closing operations.
[0008]
[Means for Solving the Problems]
The present invention is opened and closed a doorway frame having upper frame and the vertical frame provided doorway leading to the hoistway from the landing, the opening of the doorway frame is guided by the sill is disposed with a gap to the output inlet frame an elevator having a hall door, said at least one of the opposing faces member on the top and side and bottom of the top and sides and a bottom portion or the hall door hall door, the Saegikemuri member to prevent smoke from entering The upper or bottom smoke-shielding member is a member that is shaped like a letter C that is open toward the lower tip, and is deformed by a difference in ambient atmospheric pressure .
In addition, the present invention provides an entrance / exit frame comprising an upper frame and a vertical frame provided at an entrance / exit leading from the landing to the hoistway, and the entrance / exit frame is arranged with a gap and is guided by a sill to open / close the opening of the entrance / exit frame. In an elevator equipped with a landing door, a smoke shielding member that prevents smoke from entering at least one of an upper portion, a side portion, and a bottom portion of the landing door or an opposing member that faces the upper portion, the side portion, and the bottom portion of the landing door. The upper or bottom smoke-shielding member has a C-shape that is open toward the lower tip and is attached via a member that moves due to a difference in ambient atmospheric pressure. .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The present invention constitutes an elevator door apparatus that can moderately suppress the generation of noise and can also appropriately shield a gap that seems to be a blind spot.
[0010]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
1 is a perspective plan view showing an example of an elevator door device according to the present invention, FIG. 6 is a front view of a lower portion of the door device in FIG. 1, FIG. 7 is a front view of an upper portion of the door device in FIG. 1 is an enlarged view of a portion P in FIG. 1, FIG. 9 is an enlarged view of a portion Q in FIG. 6, FIG. 10 is a view taken along the line AA in FIG. 6 is a view taken along the line CC in FIG. 6, FIG. 13 is an enlarged view of a portion R in FIG. 7, FIG. 14 is a view taken along the line DD in FIG. FIG.
[0011]
In the figure, the same reference numerals as in FIGS. 2 to 5 denote the same components, but 10 shown in FIG. 7 is a landing door according to the present invention suspended from a well-known door hanger 9 and 10a (FIG. 1, FIG. 6, 8, 9, and 11) is a guide shoe guided by the groove 4 a of the sill 4 and is attached to the bottom of the landing door 10 via a bracket 10 b (shown in FIG. 11). Reference numeral 11 shown in FIGS. 9 and 10 is a smoke shielding material made of, for example, a C-shaped flame-retardant rubber that is open toward the tip, and fits into the recess at the bottom of the landing door 10 via the bracket 10c. And is provided at a portion other than the mounting portion of the guide shoe 10a. Although not shown, the landing door 10 has a structure in which a door closing force by a weight is always applied as is well known.
[0012]
12 and 12 'shown in FIG. 9 and FIG. 12 are door stop rubbers which also have a function of a smoke shielding material provided on the side of the landing door 10, and in the lower part, until entering the groove 4a of the sill 4, that is, the smoke shielding material 11 It hangs down to a position that covers the end of the. In other words, the door rubbers 12 and 12 ′ and the smoke shielding material 11 are disposed so as to be positioned on the same vertical plane, for example, so as to be in contact with each other. The door stop rubber 12 and the door stop rubber 12 'are configured such that, for example, a concave portion is formed on one side and a convex portion is formed on the other side so that they can be in close contact with each other when the landing door 10 is closed. Has been.
[0013]
Since the smoke barrier 11 can be bent so that the tip of the letter C does not contact the side wall of the sill groove 4a when the door is opened and closed, it is possible to suppress wear of the tip of the smoke shield 11 during normal opening and closing. In the event of a fire, the air in the fire room expands thermally, and air containing high-pressure smoke tries to escape through the lower part of the door, but the air flows into the smoke shield 11 provided at the lower end of the door. When this is done, the non-fire chamber side smoke-shielding material is pressed against the side wall of the sill groove 4a, so that sufficient airtightness is reliably ensured according to the direction of smoke flow. Here, when the landing door 10 is closed, the door contact rubber 12, 12 'and the smoke shielding material 11 are appropriately brought into contact with each other by the door closing force, so that the above-described effects can be added and the lower gap can be closed. About the shape of this smoke shielding material 11, the front-end | tip of a cross-section may be bent inward for a while. It should be noted that when the left and right landing doors 10 are closed, the above-described smoke shielding material 11 provided on the landing doors 10 is appropriately brought into contact with each other, thereby eliminating the drooping of the rubber 12, 12 '. Is possible.
[0014]
On the other hand, 13 and 13 'shown in FIG. 13 are smoke shielding materials provided at the upper end of the landing door 10 and, like the door stop rubber 12 and 12', when the landing door 10 is closed, the doors are firmly closed. A concave portion is formed on one side and a convex portion is formed on the other side so as to be in close contact with each other, and can be contacted without any gap. The door stopper rubber 12 and 12 'and the smoke shielding material 13 disposed at a position in contact with the door stopper rubber 12 and 12' are configured to ensure that there is no upper gap when the landing door 10 is closed. Yes. Therefore, in a state where the landing door 10 is closed, not only the clearance between the landing doors 10 but also the clearance between the upper and lower portions can be appropriately closed by the door closing force. In this way, various configurations other than the fitting between the concave portion and the convex portion can be considered and the configuration capable of contacting without a gap is naturally not limited to the embodiment.
[0015]
7 and 14 is a hollow smoke shield, for example, which is detachably fitted in a U-groove bracket 14 provided in an inclined shape at the upper end of the landing door 10, on the side opposite to the vertical frame 2. It is arranged so that it is located at the top. Reference numeral 21 denotes a contact plate provided so as to be adjustable in the vertical direction with respect to the upper frame 3, and is attached so as to contact the smoke shielding material 20 and close the gap when the landing door 10 is closed. This backing plate 21 is also arranged so as to be located on the upper side of the anti-vertical frame 2. Here, when the left and right landing doors 10 are closed, the smoke shielding materials 13 and 13 ′ are eliminated by arranging the smoke shielding materials 20 provided on the opposite landing doors 10 to contact each other. It is also possible.
[0016]
Next, FIG. 15A of FIG. 15 is an enlarged exploded perspective view showing the relationship among the landing door 10, the vertical frame 2, and the upper frame 3, and FIG. 15B is a partial front view of FIG. is there. In the figure, reference numeral 15 denotes an L-shaped bracket provided on the side surface of the landing door 10. The bracket 15 has a bracket 31 having a smoke shielding material 30 (removable in a U-groove bracket 32 provided on the bracket 31). The smoke shielding material 30 is fitted in an adjustable manner in the width direction of the landing door 10 through the long hole 15a, and the smoke shielding material 20 and the smoke shielding material 30 are always attached. That is, it is most desirable to arrange the smoke shielding material 20 and the smoke shielding material 30 on the same vertical plane. Reference numeral 22 denotes a bracket provided on the vertical frame 2 so as to extend upward, and the upper frame 3 is placed on the vertical frame 2 so as to cover the upper side of the vertical frame 2. It arrange | positions so that a part of side surface may be covered. Reference numeral 40 denotes a cover that covers the upper portion of the smoke shielding material 30. When the landing door 10 is closed, the smoke shielding material 30 is pressed against one surface of the bracket 22, so that the gaps between the landing door 10, the vertical frame 2, and the upper frame 3 become the smoke shielding material 20 and the smoke shielding material 30. Thus, the structure is appropriately closed.
[0017]
As another embodiment, for example, a configuration as shown in FIG. 18 is also conceivable. That is, the L-shaped bracket 15 ′, the bracket 31 ′, and the smoke shielding material 30 are only up to the height of the vertical frame 2, and for this reason, the L-shaped bracket 33 (for example, the smoke shielding material 20 and the like) with rubber attached to the mounting surface. By arranging the smoke shielding material 30 on the same plane), the side surface of the upper frame 3 and the upper surface of the vertical frame 2 are simultaneously covered so as to eliminate the gap.
[0018]
Therefore, when the left and right landing doors 10 are closed, the gap between the vertical frame 2 and the landing door 10 is closed by the smoke shielding material 30, and the gap between the upper frame 3 and the landing door 10 is sealed with the smoke shielding material 20. In addition, the gap between the landing doors 10 is due to the rubber 12, 12 'per door, the gap between the landing door 10 and the sill 4 is due to the smoke shielding material 11, and the gap between the landing doors 10 and the sill 4 is The clearance between the landing doors 10 and the upper frame 3 due to the smoke shielding material 11 and the door stopper rubber 12 and 12 ′ is determined by the door stopper rubber 12 and 12 ′ and the smoke shielding materials 13 and 13 ′ or the smoke barrier material 20. It is blocked, and it is possible to reliably prevent the inflow of smoke from the landing to the hoistway and the outflow of smoke from the hoistway to the landing.
[0019]
By the way, it is thought that it is better to determine the material and shape of the smoke shielding materials 20 and 30 and the smoke shielding material 11 according to their roles, functions, and properties. That is, in the case of the smoke shielding material 30, since the surface is simply pressed, it is only necessary to satisfy the smoke shielding performance, and it is not necessary to consider the movement accompanied by the friction. On the other hand, in the case of the smoke shielding material 11, since the relative movement is always caused with respect to the sill 4 with the opening and closing operation of the door, it is necessary to consider not only the smoke shielding performance but also friction (vibration and noise countermeasures, etc.) A function capable of smooth sliding operation is required. Further, in the case of the smoke shielding material 20, since the friction due to the relative movement with the backing plate 21 is also received just before the door is closed, a function capable of performing a smooth sliding operation is required even if it is not as much as the smoke shielding material 11. That is, it is desirable to have both the properties of smoke shielding performance and sliding performance.
[0020]
Especially in the case of a fire, since the temperature and pressure change, the hollow portion expands somewhat in the case of the members that deform due to the change in the temperature and pressure difference, for example, the smoke shielding materials 20 and 30, or in the case of the smoke shielding material 11 It is effective that the C-shape is deformed according to the flowing direction. In addition to the case where the shape of the smoke shielding material changes according to the pressure difference, for example, a similar effect can be obtained even if a member (such as a U-groove bracket) that supports the smoke shielding material is configured to be movable. . In addition, according to the regulations regarding smoke shielding performance, it is sufficient that the amount of smoke leakage is 0.2 m ³ / min * m ² or less when the pressure difference between both sides of the door is 19.6 Pa. Since the smoke performance is not required, it is not always necessary to completely adhere the members.
[0021]
Here, FIG. 16 shows a case where the same member as the smoke shielding material 11 is used as the smoke shielding material 20 ′. In this way, it is advantageous to devise so as to share parts as much as possible, so that the number of parts can be reduced as much. However, it goes without saying that the material and shape may be selected and determined as appropriate according to the properties, roles, and functions required for the member.
[0022]
【The invention's effect】
As described above, according to the present invention, there is very little risk of problems such as vibration and noise when opening and closing a normal door, and if the door is closed, the gap between the landing door, the entrance frame and the sill is set on the spot. In order to ensure that it is sealed according to the situation, it is possible to appropriately prevent smoke from entering anytime and at any time. Further, there is no need to provide a special drive mechanism or device for the smoke shielding / smoke preventing function. Furthermore, there is a merit that it can be additionally employed in an existing elevator.
[Brief description of the drawings]
FIG. 1 is a plan view showing an example of an elevator door device according to the present invention.
FIG. 2 is a front view of a conventional elevator hall smoke-proof door device.
FIG. 3 is a view taken along the line AA in FIG. 2;
4 is a view taken along line BB in FIG. 2;
FIG. 5 is a diagram for explaining a problem of the prior art.
6 is a front view of a lower part of the door device in FIG. 1. FIG.
7 is a front view of the upper part of the door device in FIG. 6. FIG.
FIG. 8 is an enlarged view of a part P in FIG. 1;
9 is an enlarged view of a Q portion in FIG. 6. FIG.
10 is a view taken along line AA in FIG.
11 is a BB line arrow view of FIG. 6. FIG.
12 is a view taken along the line CC of FIG. 6;
13 is an enlarged view of a portion R in FIG.
14 is a view taken along line DD of FIG. 13;
FIG. 15 is an exploded perspective view and a partial front view showing the relationship between the landing door 10 and the vertical frame 2 and the upper frame 3;
FIG. 16 is a diagram corresponding to FIG. 14 showing another embodiment of the present invention.
FIG. 17 is a diagram for explaining a problem of the prior art.
18 is another exploded enlarged perspective view and a partial front view showing the relationship between the hall door 10, the vertical frame 2 and the upper frame 3. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1,10 Entrance door 2 Entrance vertical frame 3 Entrance upper frame 4 Sill 4a Groove 10a of sill 4 Guide shoe 12 of the door 10 Rubber | gum 5a, 5b, 5c, 11, 13, 20, 30, 20 'Smoke shielding material 14,32 U groove bracket

Claims

An entrance / exit frame comprising an upper frame and a vertical frame provided at the entrance / exit leading from the landing to the hoistway, and a landing door arranged at a gap in the entrance / exit frame and guided by a sill to open and close the opening of the entrance / exit frame. in the elevator, the at least one of the opposing faces member on the top and side and bottom of the top and sides and a bottom portion or the hall door hall door includes a Saegikemuri member to prevent smoke from entering the upper Alternatively, the smoke-shielding member at the bottom is a member that is shaped like a letter C that is open toward the lower tip, and is a member that is deformed by a difference in atmospheric pressure around the elevator door device.

An entrance / exit frame composed of an upper frame and a vertical frame provided at the entrance / exit leading from the platform to the hoistway, and a landing door arranged at a gap in the entrance / exit frame and guided by a sill to open and close the opening of the entrance / exit frame. in the elevator, the at least one of the opposing faces member on the top and side and bottom of the top and sides and a bottom portion or the hall door hall door includes a Saegikemuri member to prevent smoke from entering the upper Or the smoke-shielding member of a bottom part is attached through the member which moves according to the pressure difference of the circumference | surroundings, and it is a square shape open | released toward the front-end | tip below, The elevator door apparatus characterized by the above-mentioned .

3. The elevator door device according to claim 1, wherein the side smoke shielding member is disposed so as to be in contact with the bottom smoke shielding member above.

3. The elevator door device according to claim 1, wherein the side smoke-shielding member is disposed so as to be in contact with the upper smoke-shielding member at a lower side. 4.

The elevator door device according to any one of claims 1 to 4, wherein the side smoke-preventing member and the bottom smoke-preventing member are disposed on the same vertical plane.

The elevator door device according to any one of claims 1 to 4, wherein the side smoke shielding member and the upper smoke shielding member are arranged on the same vertical plane.

The elevator door device according to any one of claims 1 to 6, wherein the smoke shielding member is a member that fits into a concave portion of a bracket provided on the landing door.

8. The landing door according to claim 1, wherein the landing door is a central opening door, and a smoke shielding member that allows the opposing smoke shielding members to contact each other without a gap is provided at a facing portion of the landing door. The door apparatus for elevators as described.

The elevator door device according to claim 8, wherein the opposing smoke shielding member has a concave portion on one side and a convex portion on the other side, and is configured to be fitted when the door is closed.