JP4280041B2

JP4280041B2 - Elevator door device

Info

Publication number: JP4280041B2
Application number: JP2002242798A
Authority: JP
Inventors: みずき山内
Original assignee: Fujitec Co Ltd
Current assignee: Fujitec Co Ltd
Priority date: 2002-08-23
Filing date: 2002-08-23
Publication date: 2009-06-17
Anticipated expiration: 2022-08-23
Also published as: JP2004083145A

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扉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】
エレベータの乗場出入口を開閉する扉は、一般に引き戸が用いられ、円滑な開閉動作のために出入口三方枠との間や扉相互の間には当然隙間が設けられている。このため、万一火災が発生した場合には、この隙間から煙が侵入することになり、建物内にいる人が煙にまかれてしまう問題があった。
【０００３】
したがって、図１４に示すように、上枠１と縦枠２と敷居３とからなるエレベータの乗場出入口４を囲む如くに、遮煙シャッター５を配置して、この種の煙問題を解決するように提案されている。即ち、火災などにより煙が発生した時には、このシャッター５を下ろして、乗場６を封鎖し、煙が建物内に広がらないようにするものである。
【０００４】
【発明が解決しようとする課題】
このようなエレベータの遮煙装置では、乗場６を遮煙シャッター５で包囲しなければならないため、費用が嵩むだけでなく、建築のレイアウトやスペースの利用効率を損なうことにもなっていた。
【０００５】
本発明は、上記の点に鑑みなされたもので、建築上の制約なしにエレベータ側での煙対策だけで済むエレベータの乗場扉を提供することを目的とする。
【０００６】
【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高速扉と低速扉とからなる乗場扉を備えたエレベータにおいて、前記高速扉及び低速扉の上部と側部と底部或いは前記高速扉及び低速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高速扉と低速扉とからなる乗場扉を備えたエレベータにおいて、前記高速扉及び低速扉の上部と側部と底部或いは前記高速扉及び低速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。
【０００７】
【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扉装置を構成するものである。
【０００８】
【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乗場扉の一例を示す正面図、図２は図１のＡ−Ａ線矢視拡大図、図３は図１のＢ−Ｂ線矢視拡大図、図４は図１のＣ−Ｃ線矢視図、図５は図４のＺ部拡大図、図６は図４のＤ−Ｄ線矢視図、図７は図１のＥ−Ｅ線矢視図、図８は図４のＦ−Ｆ線部分矢視図、図９は扉１１と上枠１と縦枠２との関係を示す斜視図、図１０は図９の平面図、図１１は扉１２の扉１１側上部と上枠１との関係を示す斜視図、図１２は扉１２と上枠１と縦枠２との関係を示す斜視図及び部分拡大図である。
【０００９】
図中、図１５と同一符号のものは同一のものを示すが、図１に示す１１，１２は周知のドアハンガー７，８にそれぞれ吊り下げられた本発明に係る乗場扉で、高速で移動する扉１１と低速で移動する扉１２であり、それぞれのガイドシュー１１ａ，１２ａが図３の敷居５の溝５ａ，５ｂにそれぞれ案内される。この乗場扉１１，１２には、図示しないが周知の通り、錘又はバネによる戸閉力が常時付与されている構造になっている。ここで、扉１２の方については、後述する理由により、反扉１１側の端部の曲げ加工を浅く構成している。
【００１０】
図４及び図９に示す１３は扉１１の反扉１２側に設けられた戸当たりゴム、１４はこの戸当たりゴム１３に対向するように縦枠２に設けられた戸当たりゴムで、この戸当たりゴム１３，１４どうし、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、遮煙材の働きを有する如く隙間なく接触できるように構成されている。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。
【００１１】
次に、図４及び図５に示す１５は扉１１の扉１２側外面にブラケット１５ａを介して設けられた遮煙材で、乗場扉閉鎖時に扉１２に接触して隙間１ｓを封鎖するものである。そして、乗場扉開放時にはこの遮煙材１５は扉１２に接触しないように、扉１２の反扉１１側端部の曲げ加工が浅く（一方の寸法ｌ₁に対し、寸法ｌ₂はｌ₁＞ｌ₂）なっている。つまり、扉１２の左右側部の厚みにおいて、反扉１１側が薄く構成されている。後述する４１は扉１２の反扉１１側外面に設けられた遮煙材で、乗場扉閉鎖時には縦枠２に接触して隙間２ｓを封鎖するものである。
【００１２】
次に、図３に示す１７，１８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、扉１１，１２の下端凹部に嵌合するように、図１に示すガイドシュー１１ａ，１２ａの取付部分以外の箇所に取付けられている。この遮煙材１７，１８は、扉の開閉時にはハの字の先端が敷居溝５ａ，５ｂ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１７，１８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１７，１８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５ａ，５ｂ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。この遮煙材１７，１８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。
【００１３】
次に、図２に示す２１，２２は扉１１，１２の上方にそれぞれ傾斜状に設けられた図１のＵ溝ブラケット２３，２４の中に取外し自在に嵌入された、例えば中空の遮煙材で、扉の閉鎖側に行くほど上に位置するように配置されている。そして、特にＵ溝ブラケット２３及び遮煙材２１は扉１２の切欠き１２ｂ内に設けられている。２５，２６は上枠１に対し上下方向調整自在に設けられた当て板で、扉１１，１２の閉鎖時には遮煙材２１，２２と接触して隙間３ｓ，４ｓを塞ぐように取付けられている。この当て板２５，２６も図１に示すように傾斜状に配置されている。
【００１４】
次に、図９に示す２７は当て板２５の端部を塞ぐ平板、２８はこの平板２７に接するように設けられたベースで、ベース２８上には戸当たりゴム２９が取付けられている。扉１１が閉鎖する際には、戸当たりゴム１３，１４どうしが密着するが、図１０に示すように扉１１と縦枠２との間には上方に向けて隙間３ｓが存在しており、このゴム２９がこの隙間３ｓを覆うことにより、隙間３ｓを適切に塞ぐことができる構造になっている。このゴム２９については、前述の戸当たりゴム１３，１４と同一部材を使用した例を述べているが、単なる平板であってももちろんかまわない。
【００１５】
次に、図４,図８及び図１１に示す３０は扉１２の閉鎖時には、遮煙材２２、当て板２６及びＵ溝ブラケット２４の端部を塞ぐ平板で、Ｌ字状ブラケット３１を介して上枠１に設けられている。図４，図５，図６及び図７に示す３２は扉１１下端側部外面におけるブラケット１５ａの切欠き部に取付けられた弾性体を備える平板で、扉１１の閉鎖時には前述の遮煙材１５下方の隙間５ｓを塞ぐ役割を有している。又、平板３２と同じ形状・構造の弾性体を備える平板３３も同様に扉１２下端側部外面におけるブラケット４０（後述）の切欠き部に設けられ、扉１２の閉鎖時には後述の遮煙材４１における下方の隙間６ｓを塞ぐように構成されている。この平板３２，３３の形状や構造については、その場の状況に応じて変化させてもよい。又、取付箇所についても実施例だけに限らない。
【００１６】
次に、図１２に示す４０は扉１２の側部外面に設けられたＬ字状ブラケットで、このブラケット４０には遮煙材４１を有するブラケット４２（ブラケット４２に設けられたＵ溝ブラケット４３の中に取外し自在に遮煙材４１が嵌入されている）が扉１２の幅方向に長穴４０ａを通じて調整自在に取付けられ、遮煙材２２と遮煙材４１とが常時接触するように取付けられている。つまり、遮煙材２２と遮煙材４１とは同一垂直平面上に配置するのが望ましい。
【００１７】
４４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１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４４は上枠１の側面の一部を覆うように配置される。そして、５０はこの遮煙材４１の上方を覆うカバーである。扉１２が閉鎖される際には、ブラケット４４の片面に遮煙材４１が圧接されることにより、扉１２と縦枠２と上枠１との隙間７ｓが遮煙材２２と遮煙材４１とにより適切に塞がれる構造になっている。
【００１８】
したがって、乗場扉１１，１２が閉鎖された場合には、縦枠２と扉１１との隙間は戸当たりゴム１３と戸当たりゴム１４と戸当たりゴム２９、扉１２と縦枠２との隙間はブラケット４４と遮煙材４１、扉１１と扉１２との隙間は平板３２と遮煙材１５、上枠１と扉１１との隙間は遮煙材２１と当て板２５及び戸当たりゴム２９、扉１２と上枠１との隙間は平板３０と遮煙材２２と当て板２６、扉１１或いは扉１２と敷居５との隙間は遮煙材１７，１８及び平板３２，３３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。特に、図１３に示すように三つ以上の部材が対向している矢印箇所における隙間についても確実に塞げるため、遮煙効果は万全と言える。
【００１９】
ところで、これらの遮煙材１７，１８及び遮煙材２１，２２或いは遮煙材１５，４１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１５，４１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特にない。一方、遮煙材１７，１８の場合は扉の開閉動作に伴って常に、敷居５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２１，２２の場合は扉の閉鎖間際において当て板２５，２６との相対運動による摩擦も受けるため、遮煙材１７，１８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。戸閉終端部で当て板２５，２６に押圧された状態で扉１１，１２が閉まるため、摩擦を伴う動作になることからこの遮煙材２１，２２には低摩擦係数で耐摩耗性を向上させる特殊加工を施すようにし、当て板２５,２６側には摺動特性に優れたテープ等を貼り付けるのも効果的である。
【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２１，２２，４１の場合は中空部分が多少膨らんだり、遮煙材１７，１８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１４は、遮煙材２１′，２２′として遮煙材１７，１８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、各扉と出入口枠及び敷居との隙間及び扉相互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扉装置の一例を示す正面図である。
【図２】図１のＡ−Ａ線矢視拡大図である。
【図３】図１のＢ−Ｂ線矢視拡大図である。
【図４】図１のＣ−Ｃ線矢視図である。
【図５】図４のＺ部拡大図である。
【図６】図４のＤ−Ｄ線矢視図である。
【図７】図１のＥ−Ｅ線矢視図である。
【図８】図４のＦ−Ｆ線部分矢視図である。
【図９】扉１１と上枠１と縦枠２との関係を示す斜視図である。
【図１０】図９の平面図である。
【図１１】扉１２の扉１１側上部と上枠１との関係を示す斜視図である。
【図１２】扉１２と上枠１と縦枠２との関係を示す斜視図及び部分拡大図である。
【図１３】本発明の効果について説明する説明図である。
【図１４】本発明のその他の実施例を示す図である。
【図１５】従来のエレベータ用遮煙装置の正面図である。
【符号の説明】
１出入口上枠
２出入口縦枠
３，５敷居
４出入口
１１高速扉
１２低速扉
１３，１４，２９戸当たりゴム
１７，１８，２１，２２，１５，４１遮煙材
２７，３０，３２，３３平板
４４ブラケット
１ｓ，２ｓ，３ｓ，４ｓ，５ｓ，６ｓ，７ｓ隙間[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 from flowing out into the hoistway from the hoistway. In the present application, the expression “smoke intrusion” means any inflow or outflow of smoke.
[0002]
[Prior art]
Sliding doors are generally used as the doors that open and close the elevator entrance and exit, and naturally there are gaps between the doorway three-way frame and between the doors for smooth opening and closing operations. For this reason, if a fire breaks out, smoke enters through this gap, and there is a problem that people in the building are covered with smoke.
[0003]
Therefore, as shown in FIG. 14, the smoke shielding shutter 5 is arranged so as to surround the elevator entrance / exit 4 composed of the upper frame 1, the vertical frame 2, and the sill 3, so as to solve this kind of smoke problem. Has been proposed. That is, when smoke is generated due to a fire or the like, the shutter 5 is lowered to block the landing 6 so that the smoke does not spread in the building.
[0004]
[Problems to be solved by the invention]
In such an elevator smoke shielding device, since the hall 6 must be surrounded by the smoke shielding shutter 5, not only the cost is increased, but also the layout of the building and the utilization efficiency of the space are impaired.
[0005]
The present invention has been made in view of the above points, and an object of the present invention is to provide a landing door for an elevator that does not require any architectural restrictions and requires only smoke countermeasures on the elevator side.
[0006]
[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 comprising a high speed door and a low speed door, at least in the high-speed door and a low speed door top and side and bottom or opposite member facing the top and sides and bottom of the high-speed door and a low speed door On one side, a smoke shielding member that prevents the intrusion of smoke is provided, and the smoke shielding member at the top or bottom is a C-shape that is open toward the lower tip and is deformed by a difference in ambient pressure. it is obtained by the.
The present invention also provides an entrance / exit frame composed of an upper frame and a vertical frame provided at the entrance / exit leading from the landing to the hoistway, and the entrance / exit frame arranged with a gap and being guided by a sill to open / close the opening of the entrance / exit frame. In an elevator equipped with a landing door composed of a high-speed door and a low-speed door, an upper member and a side portion and a bottom portion of the high-speed door and the low-speed door or a facing member facing the top portion, the side portion and the bottom portion of the high-speed door and the low-speed door. At least one is provided with a smoke shielding member that prevents smoke from entering, and the upper or bottom smoke shielding member is shaped like a letter C that is open toward the lower tip and moves due to a difference in ambient atmospheric pressure. It is set as the structure attached through the member.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The present invention constitutes an elevator door device that can moderately suppress the generation of noise and can also appropriately shield a gap that seems to be a blind spot.
[0008]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
1 is a front view showing an example of an elevator hall door according to the present invention, FIG. 2 is an enlarged view taken along the line AA in FIG. 1, FIG. 3 is an enlarged view taken along the line BB in FIG. 1 is a view taken along the line CC in FIG. 1, FIG. 5 is an enlarged view of a portion Z in FIG. 4, FIG. 6 is a view taken along the line D-D in FIG. 8 is a partial arrow view taken along line FF in FIG. 4, FIG. 9 is a perspective view showing the relationship between the door 11, the upper frame 1, and the vertical frame 2, FIG. 10 is a plan view of FIG. 12 is a perspective view showing the relationship between the upper portion of the door 11 and the upper frame 1, and FIG. 12 is a perspective view and a partially enlarged view showing the relationship between the door 12, the upper frame 1 and the vertical frame 2.
[0009]
In the figure, the same reference numerals as those in FIG. 15 denote the same components, but 11 and 12 shown in FIG. 1 are landing doors according to the present invention suspended on known door hangers 7 and 8, respectively, and move at high speed. The door 11 moves at a low speed and the door 12 moves at a low speed, and the guide shoes 11a and 12a are respectively guided into the grooves 5a and 5b of the sill 5 shown in FIG. As is well known, the landing doors 11 and 12 have a structure in which a door closing force by a weight or a spring is always applied. Here, about the direction of the door 12, the bending process of the edge part by the side of the non-door 11 is shallowly comprised for the reason mentioned later.
[0010]
4 and FIG. 9 is a door stop rubber provided on the side opposite to the door 12 of the door 11, and 14 is a door stop rubber provided in the vertical frame 2 so as to face the door stop rubber 13. The contact rubbers 13 and 14 are each formed with a concave part on one side and a convex part on the other so that they are firmly in contact with each other, so that they can be contacted without gaps so as to function as a smoke shielding material. 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.
[0011]
Next, 15 shown in FIG. 4 and FIG. 5 is a smoke shielding material provided on the door 12 side outer surface of the door 11 via a bracket 15a, which contacts the door 12 when the landing door is closed and seals the gap 1s. is there. Then, the Saegikemuri member 15 at the time of landing door open so as not to come into contact with the door 12, relative to bending is shallow (one dimension l ₁ anti door 11 side end portion of the door 12, the dimension l ₂ is l _1> l ₂ ). That is, in the thickness of the left and right side portions of the door 12, the side opposite to the door 11 is configured to be thin. Reference numeral 41 to be described later is a smoke shielding material provided on the outer surface of the door 12 on the side opposite to the door 11, and contacts the vertical frame 2 to close the gap 2s when the landing door is closed.
[0012]
Next, reference numerals 17 and 18 shown in FIG. 3 are smoke shielding materials made of, for example, a C-shaped flame retardant rubber opened toward the tip, and fitted into the lower end recesses of the doors 11 and 12. The guide shoes 11a and 12a shown in FIG. The smoke shields 17 and 18 can be bent so that the tip of the letter C does not come into contact with the side walls of the sill grooves 5a and 5b when the door is opened and closed. Therefore, the tips of the smoke shields 17 and 18 are normally opened and closed. 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 smoke barrier provided at the lower end of the door When air flows into 17 and 18, the non-fire chamber side smoke-shielding material is pressed against the side walls of the sill grooves 5 a and 5 b, so that sufficient airtightness is ensured according to the direction of smoke flow. Secured. About the shape of this smoke-shielding material 17 and 18, the front-end | tip of a square-shape may be bent a little inward.
[0013]
Next, 21 and 22 shown in FIG. 2 are removably fitted into the U-groove brackets 23 and 24 of FIG. Therefore, it is arranged so as to be located upward as it goes to the closed side of the door. In particular, the U-groove bracket 23 and the smoke shielding material 21 are provided in the notch 12 b of the door 12. Reference numerals 25 and 26 are contact plates provided so as to be adjustable in the vertical direction with respect to the upper frame 1 and are attached so as to contact the smoke shielding materials 21 and 22 and close the gaps 3s and 4s when the doors 11 and 12 are closed. . The backing plates 25 and 26 are also arranged in an inclined manner as shown in FIG.
[0014]
Next, 27 shown in FIG. 9 is a flat plate that closes the end of the contact plate 25, and 28 is a base provided so as to be in contact with the flat plate 27, and a door stop rubber 29 is attached on the base 28. When the door 11 is closed, the door rubbers 13 and 14 are in close contact with each other, but there is a gap 3s between the door 11 and the vertical frame 2 as shown in FIG. The rubber 29 covers the gap 3s so that the gap 3s can be properly closed. As for the rubber 29, an example in which the same member as the above-described rubber 13 and 14 is used is described, but it may be a simple flat plate.
[0015]
4, 8, and 11 is a flat plate that closes the end portions of the smoke shielding material 22, the contact plate 26, and the U-groove bracket 24 when the door 12 is closed. It is provided on the upper frame 1. 4, 5, 6, and 7 is a flat plate having an elastic body attached to a notch portion of the bracket 15 a on the outer surface of the lower end side portion of the door 11. When the door 11 is closed, the above-described smoke shielding material 15 is provided. It has a role of closing the lower gap 5s. A flat plate 33 having an elastic body having the same shape and structure as the flat plate 32 is also provided in a notch portion of a bracket 40 (described later) on the outer surface of the lower end side of the door 12, and a smoke shielding material 41 described later when the door 12 is closed. The lower gap 6s is configured to be closed. About the shape and structure of this flat plate 32 and 33, you may change according to the condition of the place. Also, the mounting location is not limited to the embodiment.
[0016]
Next, reference numeral 40 shown in FIG. 12 denotes an L-shaped bracket provided on the outer side surface of the door 12. The bracket 40 includes a bracket 42 having a smoke shielding material 41 (the U-groove bracket 43 provided in the bracket 42. The smoke-shielding material 41 is detachably inserted into the door 12 so that the smoke-shielding material 22 and the smoke-shielding material 41 are always in contact with each other. ing. That is, it is desirable to arrange the smoke shielding material 22 and the smoke shielding material 41 on the same vertical plane.
[0017]
44 is a bracket provided on the vertical frame 2 so as to extend upward, and the upper frame 1 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 50 denotes a cover that covers the upper portion of the smoke shielding material 41. When the door 12 is closed, the smoke shielding material 41 is pressed against one surface of the bracket 44, so that the gap 7 s between the door 12, the vertical frame 2, and the upper frame 1 becomes the smoke shielding material 22 and the smoke shielding material 41. It is structured to be properly closed.
[0018]
Accordingly, when the landing doors 11 and 12 are closed, the gap between the vertical frame 2 and the door 11 is the door rubber 13, the door rubber 14 and the door rubber 29, and the gap between the door 12 and the vertical frame 2. The clearance between the bracket 44 and the smoke shielding material 41, the gap between the door 11 and the door 12 is the flat plate 32 and the smoke shielding material 15, and the gap between the upper frame 1 and the door 11 is the smoke shielding material 21, the contact plate 25, the rubber 29 per door, and the door. 12 and the upper frame 1 are closed by the flat plate 30 and the smoke shielding material 22 and the contact plate 26, and the gap between the door 11 or the door 12 and the sill 5 is blocked by the smoke shielding materials 17 and 18 and the flat plates 32 and 33. It is possible to reliably prevent the inflow of smoke into the hoistway and the outflow of smoke from the hoistway to the landing side. In particular, as shown in FIG. 13, since the gaps at the arrow points where three or more members are facing each other can be reliably closed, it can be said that the smoke shielding effect is perfect.
[0019]
By the way, it is thought that it is better to determine the material and shape of the smoke shielding materials 17 and 18 and the smoke shielding materials 21 and 22 or the smoke shielding materials 15 and 41 in accordance with their respective roles, functions, and properties. That is, in the case of the smoke shielding materials 15 and 41, since the surface is simply pressed, it is only necessary to satisfy the smoke shielding performance, and there is no need to consider the movement accompanied by friction. On the other hand, in the case of the smoke shielding materials 17 and 18, since relative movement is always caused with respect to the sill 5 with the opening and closing operation of the door, it is necessary to consider not only the smoke shielding performance but also the friction (vibration and noise countermeasures, etc.). There is a need for a function that allows smooth sliding operation. Further, in the case of the smoke shielding materials 21 and 22, since the friction due to the relative movement with the contact plates 25 and 26 is also received just before the door is closed, the function of performing a smooth sliding operation even if it is not as much as the smoke shielding materials 17 and 18. Is required. That is, it is desirable to have both the properties of smoke shielding performance and sliding performance. Since the doors 11 and 12 are closed while being pressed against the contact plates 25 and 26 at the door closing end portion, the operation is accompanied by friction. Therefore, the smoke shielding materials 21 and 22 improve wear resistance with a low coefficient of friction. It is also effective to apply a special processing to be applied, and to apply a tape or the like having excellent sliding characteristics to the contact plates 25 and 26 side.
[0020]
Especially in the event of a fire, the temperature and air pressure fluctuate. Therefore, in the case of a member that deforms due to the change in the air temperature / pressure difference, for example, in the case of the smoke shielding materials 21, 22, 41, the hollow portion expands slightly or the smoke shielding materials 17, 18 In this case, it is effective that the C-shape is deformed according to the direction of smoke flow. 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. 14 shows a case where the same members as the smoke shielding materials 17 and 18 are used as the smoke shielding materials 21 ′ and 22 ′. 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 each door and the entrance / exit frame and the sill and the mutual doors. Since the gap is surely closed according to the situation of the spot, 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 front view showing an example of an elevator door device according to the present invention.
FIG. 2 is an enlarged view taken along line AA in FIG.
FIG. 3 is an enlarged view taken along line BB in FIG. 1;
4 is a view taken along the line CC in FIG. 1; FIG.
FIG. 5 is an enlarged view of a Z part in FIG. 4;
6 is a view taken along the line DD in FIG. 4;
7 is a view taken along the line EE of FIG.
8 is a partial arrow view taken along the line F-F in FIG. 4;
9 is a perspective view showing the relationship among the door 11, the upper frame 1, and the vertical frame 2. FIG.
FIG. 10 is a plan view of FIG. 9;
11 is a perspective view showing the relationship between the upper part of the door 11 and the upper frame 1 of the door 12. FIG.
12 is a perspective view and a partially enlarged view showing the relationship among the door 12, the upper frame 1, and the vertical frame 2. FIG.
FIG. 13 is an explanatory diagram for explaining the effect of the present invention.
FIG. 14 is a diagram showing another embodiment of the present invention.
FIG. 15 is a front view of a conventional elevator smoke shielding device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Entrance / exit upper frame 2 Entrance / exit vertical frame 3, 5 threshold 4 Entrance / exit 11 High speed door 12 Low speed door 13, 14, 29 Rubber | gum 17,18, 21, 22, 15, 41 per door Smoke shielding material 27, 30, 32, 33 Flat plate 44 Bracket 1s, 2s, 3s, 4s, 5s, 6s, 7s Clearance

Claims

An entrance / exit frame consisting of an upper frame and a vertical frame provided at the entrance / exit leading from the landing to the hoistway, a high-speed door and a low-speed door that are arranged in the entrance / exit frame with a gap and are guided by a sill to open and close the opening of the entrance / exit frame In an elevator including a landing door composed of a door, at least one of the upper and side portions and the bottom portion of the high-speed door and the low-speed door or the opposing member facing the top portion, the side portion and the bottom portion of the high-speed door and the low-speed door, It is provided with a smoke-shielding member that prevents the intrusion of smoke, and 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 pressure. Elevator door device characterized.

An entrance / exit frame consisting of an upper frame and a vertical frame provided at the entrance / exit leading from the landing to the hoistway, a high-speed door and a low-speed door that are arranged in the entrance / exit frame with a gap and are guided by a sill to open and close the opening of the entrance / exit frame In an elevator including a landing door composed of a door, at least one of the upper and side portions and the bottom portion of the high-speed door and the low-speed door or the opposing member facing the top portion, the side portion and the bottom portion of the high-speed door and the low-speed door, Smoke shielding member that prevents intrusion of smoke is provided , and the smoke shielding member at the top or bottom is attached through a member that is shaped like a letter C that is open toward the lower tip and moves due to a difference in ambient pressure. An elevator door device characterized by being provided .

3. The elevator door device according to claim 1, wherein the low-speed door is configured such that a thickness on the side opposite to the high-speed door is thin in the thickness of the left and right side portions.

The elevator door according to any one of claims 1 to 3, wherein a notch is provided in an upper portion of the low-speed door, and a smoke shielding member for the high-speed door is disposed in the notch. apparatus.

The elevator door device according to any one of claims 1 to 4, wherein a flat plate in contact with the smoke shielding member is provided on the high-speed door, the low-speed door, or the upper frame.

The elevator door device according to any one of claims 1 to 5, 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.