JPWO2003086938A1 - Elevator landing door equipment - Google Patents

Elevator landing door equipment Download PDF

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JPWO2003086938A1
JPWO2003086938A1 JP2003583909A JP2003583909A JPWO2003086938A1 JP WO2003086938 A1 JPWO2003086938 A1 JP WO2003086938A1 JP 2003583909 A JP2003583909 A JP 2003583909A JP 2003583909 A JP2003583909 A JP 2003583909A JP WO2003086938 A1 JPWO2003086938 A1 JP WO2003086938A1
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door
landing
fire prevention
prevention member
vertical frame
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JP4158911B2 (en
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鈴木　稔也
稔也 鈴木
西村　信寛
信寛 西村
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Mitsubishi Electric Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/30—Constructional features of doors or gates
    • B66B13/303—Details of door panels

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  • Elevator Door Apparatuses (AREA)
  • Wing Frames And Configurations (AREA)

Abstract

エレベータの乗場ドア装置では、乗場の戸の戸開側端部の上部に、戸閉時に縦枠に対向する防火部材が部分的に配置され、かつ固定されている。縦枠及び防火部材のいずれか一方には、孔が設けられている。縦枠及び防火部材のいずれか他方には、戸閉時に孔に挿入され、乗場の戸の昇降路側への変形を制限する挿入部が設けられている。In an elevator hall door device, a fire prevention member that is opposed to the vertical frame when the door is closed is partially arranged and fixed at the upper part of the door opening side end of the hall door. Either one of the vertical frame and the fireproof member is provided with a hole. The other of the vertical frame and the fire prevention member is provided with an insertion portion that is inserted into the hole when the door is closed and restricts deformation of the landing door to the hoistway side.

Description

技術分野
この発明は、防火構造を持つエレベータの乗場ドア装置に関するものである。
背景技術
図１２は従来のエレベータの乗場ドア装置の一例を示す断面図、図１３は図１２のＸＩＩＩ−ＸＩＩＩ線に沿う断面図である。
図において、建築の乗場壁１には、乗場出入口２が設けられている。乗場出入口２は、枠体としての三方枠３により形成されている。三方枠３は、垂直に延びる一対の縦枠４ａ，４ｂと、縦枠４ａ，４ｂの上部間に設けられ水平に延びる上枠４ｃとを有している。縦枠４ａ，４ｂの昇降路５側の端部には、断面Ｌ字状の縦枠防火部材６が固定されている。
乗場出入口２は、一対の乗場の戸７により開閉される。各乗場の戸７の戸開側端部には、戸閉時に縦枠防火部材６に対向するドア側部防火部材８が固定されている。縦枠防火部材６及びドア側部防火部材８は、乗場の戸７の上下方向（図１３の上下方向）の全体に渡って垂直に延びている。
上枠４ｃの昇降路５側端部には、水平に延びる断面Ｌ字状の上枠防火部材９が固定されている。各乗場の戸７の上端部には、戸閉時に上枠防火部材９に対向するドア上部防火部材１０が固定されている。
乗場出入口２の床部には、乗場敷居１１が設けられている。各乗場の戸７の下端部には、乗場敷居１１に挿入される戸の足１２が設けられている。
このような乗場ドア装置では、ドア側部防火部材８が縦枠防火部材６に対向し、ドア上部防火部材１０が上枠防火部材９に対向する構造、いわゆる相じゃくり構造を有している。また、火災により乗場の戸７に反りが生じると、ドア側部防火部材８が縦枠防火部材６に係合し、ドア上部防火部材１０が上枠防火部材９に係合し、乗場の戸７が外れるのが防止される。このような構造により、必要な防火性能を得ている。
しかし、上記のような防火構造は、新設の乗場ドア装置には容易に適用できるが、既設の乗場ドア装置に適用するためには、三方枠３や乗場の戸７を全て取り替えるか、又は大掛かりな追加設置工事を施す必要があり、手間及び費用が高くなってしまう。また、新設のエレベータに適用する場合においても、防火部材８が長尺であるため、据付調整に手間がかかってしまう。
発明の開示
この発明は、上記のような課題を解決するためになされたものであり、乗場の戸に防火構造を容易に追加することができるエレベータの乗場ドア装置を得ることを目的とする。
この発明によるエレベータの乗場ドア装置は、垂直に延びる縦枠を有し、乗場出入口を形成する枠体、及び乗場出入口を開閉する乗場の戸を備え、乗場の戸の戸開側端部の上部には、戸閉時に縦枠に対向する防火部材が部分的に配置され、かつ固定されており、縦枠及び防火部材のいずれか一方には、孔が設けられており、縦枠及び防火部材のいずれか他方には、戸閉時に孔に挿入され、乗場の戸の昇降路側への変形を制限する挿入部が設けられているものである。
また、この発明によるエレベータの乗場ドア装置は、垂直に延びる縦枠を有し、乗場出入口を形成する枠体、及び乗場出入口を開閉する乗場の戸を備え、乗場の戸の戸開側端部の上部には、乗場の戸の開閉方向と平行に延びる第１の対向面を有するドア防火部材が部分的に配置され、かつ固定されており、縦枠には、固定部材が固定されており、かつ固定部材を介して縦枠防火部材が取り付けられており、縦枠防火部材は、第２の対向面を有しており、戸閉時に第１の対向面が第２の対向面に対向することにより、乗場の戸の昇降路側への変形が制限されるものである。
発明を実施するための最良の形態
以下、この発明の好適な実施の形態について図面を参照して説明する。
実施の形態１．
図１はこの発明の実施の形態１によるエレベータの乗場ドア装置の断面図、図２は図１の要部を示す斜視図である。
図において、建築の乗場壁１には、乗場出入口２が設けられている。乗場出入口２は、枠体としての三方枠３により形成されている。三方枠３は、垂直に延びる一対の縦枠４ａ，４ｂと、縦枠４ａ，４ｂの上部間に設けられ水平に延びる上枠４ｃ（図１３）とを有している。縦枠４ａ，４ｂの上端部近傍には、孔２１が設けられている。
乗場出入口２は、一対の乗場の戸７により開閉される。各乗場の戸７の戸開側端部の上部には、戸閉時に縦枠４ａ，４ｂに対向する平板状の防火部材２１が固定されている。防火部材２２には、戸閉時に孔２１に挿入され、乗場の戸７の昇降路５側への変形を制限する挿入部としてのピン２３が溶接により固定されている。ピン２３としては、ボルト等を使用することができる。
図１３と同様に、乗場出入口２の床部には、乗場敷居１１が設けられている。また、各乗場の戸７の下端部には、乗場敷居１１に挿入される戸の足１２が設けられている。
孔２１の径とピン２３の径との間には、ある程度の余裕を持たせるのが好適である。これにより、乗場の戸７のがたを吸収することができ、戸閉時にピン２３をより確実に孔２１に挿入することができる。
このような乗場ドア装置では、戸閉時にピン２３が孔２１に挿入されることにより、火災による加熱時にも乗場の戸７の昇降路５側への変形が制限され、乗場の戸７の外れが防止されるとともに、昇降路５への火炎及び煙の流入が防止される。また、防火部材２２は、乗場の戸７の戸開側端部の上部のみに部分的に配置され、かつ固定されており、かつ縦枠４ａ，４ｂには、孔２１を設けるだけでよいため、新設及び既設の乗場の戸７に防火構造を容易に追加することができる。
ここで、戸の足１２が乗場敷居１１に挿入されているため、火災により乗場の戸７が加熱されたときも、乗場の戸７の下端部は準固定状態である。これに対して、乗場の戸７の上端部は、ドアハンガ（図示せず）により吊り下げられている構造であるため、乗場の戸７が変形すると三方枠３との間の隙間が大きくなる。
しかし、実施の形態１では、乗場の戸７の上端部近傍に孔２１、防火部材２２及びピン２３が設けられているため、乗場の戸７と三方枠３との間の隙間が大きくなるのを効果的に防止することができる。即ち、乗場の戸７の上下方向の全体に渡って防火構造を設けなくても、十分な防火性能を確保することができる。
また、実施の形態１の乗場ドア装置では、防火部材２２が乗場の戸７の上下方向の一部のみに部分的に取り付けられているため、乗場の戸７の重量の増加を抑えることができる。
なお、上記の例では、ピン２３を防火部材２１に溶接したが、挿入部材の固定方法はこれに限定されるものではない。
また、孔の形状は、挿入部材の断面形状に応じて種々の変更が可能であり、四角であってもよい。また、孔を上下方向に延びる長孔としてもよい。
さらに、孔及び挿入部材の数は特に限定されるものではない。例えば、１つの長孔に複数の挿入部材が同時に挿入されるようにしてもよい。
実施の形態２．
次に、図３はこの発明の実施の形態２によるエレベータの乗場ドア装置の断面図、図４は図３の要部を示す斜視図である。
図において、縦枠４ａ，４ｂの上端部近傍には、孔である複数のスリット２４が設けられている。各乗場の戸７の戸開側端部の上部には、戸閉時に縦枠４ａ，４ｂに対向する平板状の防火部材２５が固定されている。
防火部材２５の端部には、戸閉時にスリット２４に挿入され、乗場の戸７の昇降路５側への変形を制限する挿入部としての折曲部２５ａが設けられている。折曲部２５ａは、防火部材２５の一部を折り曲げることにより形成されている。他の構成は、実施の形態１と同様である。
このような乗場ドア装置では、戸閉時に折曲部２５ａがスリット２４に挿入されることにより、火災による加熱時にも乗場の戸７の昇降路５側への変形が制限され、乗場の戸７の外れが防止されるとともに、昇降路５への火炎及び煙の流入が防止される。また、防火部材２５は、乗場の戸７の戸開側端部の上部のみに部分的に配置され、かつ固定されており、かつ縦枠４ａ，４ｂには、スリット２４を設けるだけでよいため、新設及び既設の乗場の戸７に防火構造を容易に追加することができる。
さらに、防火部材２５に折曲部２５ａが一体に設けられているため、部品点数を削減し、据付をさらに容易にすることができる。
実施の形態３．
次に、図５はこの発明の実施の形態３によるエレベータの乗場ドア装置の断面図、図６は図５の要部を示す斜視図である。この例では、縦枠４ａ，４ｂの上端部近傍に挿入部としてのピン２６が溶接により固定されている。各乗場の戸７の戸開側端部の上部には、戸閉時に縦枠４ａ，４ｂに対向する平板状の防火部材２７が固定されている。防火部材２７には、戸閉時にピン２６が挿入される孔２７ａが設けられている。
このような乗場ドア装置では、戸閉時に、ピン２６が孔２７ａに挿入されることにより、乗場の戸７の昇降路５側への変形が制限される。即ち、実施の形態１とは逆に、縦枠４ａ，４ｂにピン２６を設け、防火部材２７に孔２７ａを設けた場合でも、実施の形態１と同様の効果が得られる。
実施の形態４．
次に、図７はこの発明の実施の形態４によるエレベータの乗場ドア装置の断面図、図８は図７の要部を示す斜視図である。各乗場の戸７の戸開側端部の上部には、乗場の戸７の開閉方向（図７の左右方向）と平行に延びる第１の対向面３３ａを有するドア防火部材３３が固定されている。
縦枠４ａ，４ｂには、固定部材としてのクリップ３２が溶接により固定されている。クリップ３２と縦枠４ａ，４ｂとの間には、断面Ｌ字状の縦枠防火部材３１が挟持されている。縦枠防火部材３１は、第１の対向面３３ａと平行な第２の対向面３１ａを有している。
縦枠防火部材３１の取付に際しては、まずクリップ３２が縦枠４ａ，４ｂに固定され、この後、クリップ３２と縦枠４ａ，４ｂとの間に縦枠防火部材３１が押し込まれる。クリップ３２の先端部には、爪が設けられており、縦枠防火部材３１には、爪が挿入される溝が設けられている。
戸閉時には、第１の対向面３３ａが第２の対向面３１ａに対向することにより、乗場の戸７の昇降路５側への変形が制限される。即ち、ドア防火部材３３は、Ｕ溝状に折り曲げられた部分を有しており、戸閉時には、縦枠防火部材３１の一部がＵ溝内に挿入される。他の構成は、実施の形態１と同様である。
このような乗場ドア装置では、戸閉時に第１の対向面３３ａが第２の対向面３１ａに対向することにより、火災による加熱時にも乗場の戸７の昇降路５側への変形が制限され、乗場の戸７の外れが防止されるとともに、昇降路５への火炎及び煙の流入が防止される。また、ドア防火部材３３及び縦枠防火部材３１は、乗場の戸７及び縦枠４ａ，４ｂの上部のみに部分的に配置され、かつ固定されており、かつ縦枠４ａ，４ｂには、クリップ３２を固定して縦枠防火部材３１を押し込むだけでよいため、新設及び既設の乗場の戸７に防火構造を容易に追加することができる。
実施の形態５．
次に、図９はこの発明の実施の形態５によるエレベータの乗場ドア装置の断面図、図１０は図９の要部を示す斜視図である。各乗場の戸７の戸開側端部の上部には、乗場の戸７の開閉方向（図９の左右方向）と平行に延びる第１の対向面３７ａを有するドア防火部材３７が固定されている。
縦枠４ａ，４ｂには、固定部材としてのフック３５が溶接により固定されている。縦枠４ａ，４ｂには、フック３５を介して、断面Ｌ字状の縦枠防火部材３６が取り付けられている。縦枠防火部材３６は、第１の対向面３７ａと平行な第２の対向面３６ａと、フック３５が挿通された孔３６ｂとを有している。フック３５としては、例えばボルトが用いられ、孔３６ｂとしては、例えばだるま孔が用いられる。図１１は図１０の縦枠４ａ，４ｂ及び縦枠防火部材３６を示す分解斜視図である。
戸閉時には、第１の対向面３７ａが第２の対向面３６ａに対向することにより、乗場の戸７の昇降路５側への変形が制限される。即ち、ドア防火部材３７は、Ｕ溝状に折り曲げられた部分を有しており、戸閉時には、縦枠防火部材３６の一部がＵ溝内に挿入される。他の構成は、実施の形態１と同様である。
このような乗場ドア装置では、戸閉時に第１の対向面３７ａが第２の対向面３６ａに対向することにより、火災による加熱時にも乗場の戸７の昇降路５側への変形が制限され、乗場の戸７の外れが防止されるとともに、昇降路５への火炎及び煙の流入が防止される。また、ドア防火部材３７及び縦枠防火部材３６は、乗場の戸７及び縦枠４ａ，４ｂの上部のみに部分的に配置されており、かつ縦枠４ａ，４ｂには、フック３５を固定して縦枠防火部材３６を係止するだけでよいため、新設及び既設の乗場の戸７に防火構造を容易に追加することができる。
なお、上記の例では、フック３５を１つのみ設けたが、２個以上のフック３５を設けてもよい。また、孔３６ｂの数は、フック３５に対応して決めればよく、２つ以上であってもよい。
ここで、上記実施の形態１〜５における乗場の戸７側の防火部材２２，２５，２７，３３，３７の上下寸法Ｈは、乗場の戸７の上下寸法の１／３以下であっても、十分な防火性能を確保することができる。即ち、防火部材２２，２５，２７，３３，３７は、乗場出入口２の上端部から乗場出入口２の上下寸法の１／３以下の範囲内のみに設けるだけでも、十分な防火性能が得られる。
実験では、乗場出入口２の上端部から乗場出入口２の上下寸法の１／１０以下の範囲（乗場出入口上下寸法：２２００ｍｍ、防火部材上下寸法：２００ｍｍ）のみに防火部材２２，２５，２７，３３，３７を設けても、十分な防火性能が得られた。
【図面の簡単な説明】
図１はこの発明の実施の形態１によるエレベータの乗場ドア装置の断面図、
図２は図１の要部を示す斜視図、
図３はこの発明の実施の形態２によるエレベータの乗場ドア装置の断面図、
図４は図３の要部を示す斜視図、
図５はこの発明の実施の形態３によるエレベータの乗場ドア装置の断面図、
図６は図５の要部を示す斜視図、
図７はこの発明の実施の形態４によるエレベータの乗場ドア装置の断面図、
図８は図７の要部を示す斜視図、
図９はこの発明の実施の形態５によるエレベータの乗場ドア装置の断面図、
図１０は図９の要部を示す斜視図、
図１１は図１０の縦枠及び縦枠防火部材を示す分解斜視図、
図１２は従来のエレベータの乗場ドア装置の一例を示す断面図、
図１３は図１２のＸＩＩＩ−ＸＩＩＩ線に沿う断面図である。TECHNICAL FIELD The present invention relates to an elevator hall door device having a fire prevention structure.
FIG. 12 is a sectional view showing an example of a conventional elevator landing door device, and FIG. 13 is a sectional view taken along line XIII-XIII in FIG.
In the figure, a landing doorway 2 is provided on a building landing wall 1. The hall entrance 2 is formed by a three-way frame 3 as a frame. The three-way frame 3 includes a pair of vertical frames 4a and 4b extending vertically and an upper frame 4c provided between the upper portions of the vertical frames 4a and 4b and extending horizontally. A vertical frame fire prevention member 6 having an L-shaped cross section is fixed to the end of the vertical frames 4a and 4b on the hoistway 5 side.
The hall entrance 2 is opened and closed by a pair of hall doors 7. A door side fire prevention member 8 that is opposed to the vertical frame fire prevention member 6 when the door is closed is fixed to the door opening side end of the door 7 of each landing. The vertical frame fire prevention member 6 and the door side fire prevention member 8 extend vertically across the entire vertical direction of the landing door 7 (the vertical direction in FIG. 13).
An upper frame fire prevention member 9 having an L-shaped cross section extending horizontally is fixed to the end of the upper frame 4c on the hoistway 5 side. A door upper fire prevention member 10 that is opposed to the upper frame fire prevention member 9 when the door is closed is fixed to the upper end of the door 7 of each landing.
A landing threshold 11 is provided on the floor of the landing entrance 2. At the lower end of each landing door 7, a door foot 12 to be inserted into the landing threshold 11 is provided.
Such a landing door device has a structure in which the door side fire prevention member 8 faces the vertical frame fire prevention member 6 and the door upper fire prevention member 10 faces the upper frame fire prevention member 9, that is, a so-called phase-up structure. . Further, when the landing door 7 is warped due to a fire, the door side fire prevention member 8 engages with the vertical frame fire prevention member 6, the door upper fire prevention member 10 engages with the upper frame fire prevention member 9, and the landing door 7 is prevented from coming off. With such a structure, necessary fire prevention performance is obtained.
However, the fire prevention structure as described above can be easily applied to a new landing door device, but in order to apply to an existing landing door device, the three-way frame 3 and the landing door 7 are all replaced or large-scaled. It is necessary to perform additional installation work, resulting in increased labor and cost. Also, when applied to a new elevator, since the fire protection member 8 is long, it takes time to adjust the installation.
DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator landing door device that can easily add a fire prevention structure to a landing door.
A landing door device for an elevator according to the present invention has a vertically extending vertical frame, and includes a frame body that forms a landing doorway, and a landing door that opens and closes the landing doorway, and an upper portion of the door opening side end portion of the landing door. The fire prevention member that faces the vertical frame when the door is closed is partially disposed and fixed, and a hole is provided in one of the vertical frame and the fire prevention member. The other of these is provided with an insertion portion that is inserted into the hole when the door is closed and restricts deformation of the landing door to the hoistway side.
In addition, an elevator hall door device according to the present invention includes a vertically extending vertical frame, a frame that forms a hall entrance, and a hall door that opens and closes the hall entrance, and a door opening side end of the hall door. A door fire prevention member having a first facing surface extending in parallel with the opening / closing direction of the landing door is partially disposed and fixed to the upper part of the hall, and a fixing member is fixed to the vertical frame. And the vertical frame fire prevention member is attached via the fixing member, and the vertical frame fire prevention member has a second facing surface, and the first facing surface faces the second facing surface when the door is closed. By doing so, the deformation of the landing door to the hoistway side is restricted.
BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a cross-sectional view of a landing door device for an elevator according to Embodiment 1 of the present invention, and FIG. 2 is a perspective view showing a main part of FIG.
In the figure, a landing doorway 2 is provided on a building landing wall 1. The hall entrance 2 is formed by a three-way frame 3 as a frame. The three-way frame 3 has a pair of vertical frames 4a and 4b extending vertically and an upper frame 4c (FIG. 13) provided between the upper portions of the vertical frames 4a and 4b and extending horizontally. A hole 21 is provided in the vicinity of the upper ends of the vertical frames 4a and 4b.
The hall entrance 2 is opened and closed by a pair of hall doors 7. A flat fire prevention member 21 that is opposed to the vertical frames 4a and 4b when the door is closed is fixed to the upper part of the door opening side end of the door 7 of each landing. The fire prevention member 22 is fixed by welding with a pin 23 as an insertion portion that is inserted into the hole 21 when the door is closed and restricts deformation of the landing door 7 toward the hoistway 5. As the pin 23, a bolt or the like can be used.
Similarly to FIG. 13, a landing threshold 11 is provided on the floor of the landing entrance 2. Moreover, the foot 12 of the door inserted in the landing sill 11 is provided in the lower end part of the door 7 of each landing.
It is preferable to provide a certain margin between the diameter of the hole 21 and the diameter of the pin 23. Thereby, the rattling of the door 7 of a landing can be absorbed, and the pin 23 can be more reliably inserted into the hole 21 when the door is closed.
In such a landing door device, the pin 23 is inserted into the hole 21 when the door is closed, so that deformation of the landing door 7 to the hoistway 5 side is limited even when heated by a fire, and the landing door 7 is detached. Is prevented, and the flow of flame and smoke into the hoistway 5 is prevented. Further, the fire prevention member 22 is partially arranged and fixed only at the upper part of the door opening side end portion of the landing door 7, and the vertical frames 4a and 4b only need to be provided with the holes 21. The fire prevention structure can be easily added to the doors 7 of the new and existing halls.
Here, since the foot 12 of the door is inserted into the landing threshold 11, even when the landing door 7 is heated by a fire, the lower end of the landing door 7 is in a semi-fixed state. On the other hand, the upper end portion of the landing door 7 has a structure that is suspended by a door hanger (not shown), so that the clearance between the landing door 7 and the three-way frame 3 becomes large.
However, in Embodiment 1, since the hole 21, the fire prevention member 22, and the pin 23 are provided in the vicinity of the upper end portion of the landing door 7, the gap between the landing door 7 and the three-way frame 3 is increased. Can be effectively prevented. That is, sufficient fire-proof performance can be ensured without providing a fire-proof structure over the entire vertical direction of the landing door 7.
Moreover, in the landing door apparatus of Embodiment 1, since the fire prevention member 22 is partially attached only to a part of the vertical direction of the landing door 7, an increase in the weight of the landing door 7 can be suppressed. .
In the above example, the pin 23 is welded to the fire prevention member 21, but the method of fixing the insertion member is not limited to this.
The shape of the hole can be variously changed according to the cross-sectional shape of the insertion member, and may be a square. The hole may be a long hole extending in the vertical direction.
Furthermore, the number of holes and insertion members is not particularly limited. For example, a plurality of insertion members may be simultaneously inserted into one long hole.
Embodiment 2. FIG.
Next, FIG. 3 is a cross-sectional view of an elevator landing door device according to Embodiment 2 of the present invention, and FIG. 4 is a perspective view showing an essential part of FIG.
In the figure, a plurality of slits 24 that are holes are provided in the vicinity of the upper ends of the vertical frames 4a and 4b. A flat fire-proof member 25 that faces the vertical frames 4a and 4b when the door is closed is fixed to the upper part of the door opening side end of the door 7 of each landing.
A bent portion 25a is provided at the end of the fire prevention member 25 as an insertion portion that is inserted into the slit 24 when the door is closed and restricts deformation of the landing door 7 toward the hoistway 5 side. The bent portion 25a is formed by bending a part of the fire prevention member 25. Other configurations are the same as those in the first embodiment.
In such a landing door device, the bent portion 25a is inserted into the slit 24 when the door is closed, so that deformation of the landing door 7 to the hoistway 5 side is restricted even when heated by a fire, and the landing door 7 Is prevented, and the inflow of flame and smoke into the hoistway 5 is prevented. Further, the fire prevention member 25 is partially arranged and fixed only at the upper part of the door opening side end portion of the landing door 7, and the vertical frames 4a and 4b only need to be provided with the slits 24. The fire prevention structure can be easily added to the doors 7 of the new and existing halls.
Furthermore, since the bent portion 25a is provided integrally with the fire prevention member 25, the number of parts can be reduced and installation can be further facilitated.
Embodiment 3 FIG.
Next, FIG. 5 is a sectional view of an elevator landing door device according to Embodiment 3 of the present invention, and FIG. 6 is a perspective view showing a main part of FIG. In this example, a pin 26 as an insertion portion is fixed by welding near the upper end of the vertical frames 4a and 4b. A flat fire prevention member 27 that is opposed to the vertical frames 4a and 4b when the door is closed is fixed to the upper portion of the door opening side end of the door 7 of each landing. The fire prevention member 27 is provided with a hole 27a into which the pin 26 is inserted when the door is closed.
In such a landing door device, when the door is closed, the pin 26 is inserted into the hole 27a, so that deformation of the landing door 7 toward the hoistway 5 is limited. That is, contrary to the first embodiment, even when the pins 26 are provided in the vertical frames 4a and 4b and the holes 27a are provided in the fire prevention member 27, the same effect as in the first embodiment can be obtained.
Embodiment 4 FIG.
Next, FIG. 7 is a sectional view of an elevator landing door device according to Embodiment 4 of the present invention, and FIG. 8 is a perspective view showing a main part of FIG. A door fire prevention member 33 having a first facing surface 33a extending in parallel with the opening / closing direction (left-right direction in FIG. 7) of the landing door 7 is fixed to the upper part of the door opening side end of each landing door 7. Yes.
A clip 32 as a fixing member is fixed to the vertical frames 4a and 4b by welding. Between the clip 32 and the vertical frames 4a and 4b, a vertical frame fire prevention member 31 having an L-shaped cross section is sandwiched. The vertical frame fireproof member 31 has a second facing surface 31a parallel to the first facing surface 33a.
When attaching the vertical frame fireproof member 31, the clip 32 is first fixed to the vertical frames 4a and 4b, and then the vertical frame fireproof member 31 is pushed between the clip 32 and the vertical frames 4a and 4b. A claw is provided at the tip of the clip 32, and the vertical frame fireproof member 31 is provided with a groove into which the claw is inserted.
When the door is closed, the first facing surface 33a faces the second facing surface 31a, thereby restricting deformation of the landing door 7 toward the hoistway 5 side. That is, the door fire prevention member 33 has a portion bent into a U-groove shape, and a part of the vertical frame fire prevention member 31 is inserted into the U-groove when the door is closed. Other configurations are the same as those in the first embodiment.
In such a landing door device, the first facing surface 33a faces the second facing surface 31a when the door is closed, so that deformation of the landing door 7 to the hoistway 5 side is restricted even during heating by a fire. The door 7 of the landing is prevented from being removed, and the inflow of flame and smoke into the hoistway 5 is prevented. The door fire prevention member 33 and the vertical frame fire prevention member 31 are partially arranged and fixed only on the landing door 7 and the vertical frames 4a and 4b, and the vertical frames 4a and 4b are clipped. Since it is only necessary to fix 32 and push in the vertical frame fire-proof member 31, it is possible to easily add a fire-proof structure to the doors 7 of the new and existing halls.
Embodiment 5 FIG.
Next, FIG. 9 is a sectional view of an elevator landing door device according to Embodiment 5 of the present invention, and FIG. 10 is a perspective view showing a main part of FIG. A door fire prevention member 37 having a first facing surface 37a extending in parallel with the opening / closing direction (left-right direction in FIG. 9) of the landing door 7 is fixed to the upper part of the door opening side end portion of each landing door 7. Yes.
A hook 35 as a fixing member is fixed to the vertical frames 4a and 4b by welding. A vertical frame fire prevention member 36 having an L-shaped cross section is attached to the vertical frames 4 a and 4 b via a hook 35. The vertical frame fire prevention member 36 has a second facing surface 36a parallel to the first facing surface 37a, and a hole 36b through which the hook 35 is inserted. As the hook 35, for example, a bolt is used, and as the hole 36b, for example, a daruma hole is used. FIG. 11 is an exploded perspective view showing the vertical frames 4a and 4b and the vertical frame fire prevention member 36 of FIG.
When the door is closed, the first facing surface 37a faces the second facing surface 36a, thereby restricting deformation of the landing door 7 toward the hoistway 5 side. That is, the door fire prevention member 37 has a portion bent into a U-groove shape, and a part of the vertical frame fire prevention member 36 is inserted into the U-groove when the door is closed. Other configurations are the same as those in the first embodiment.
In such a landing door device, the first facing surface 37a faces the second facing surface 36a when the door is closed, so that deformation of the landing door 7 to the hoistway 5 side is restricted even during heating by a fire. The door 7 of the landing is prevented from being removed, and the inflow of flame and smoke into the hoistway 5 is prevented. The door fire prevention member 37 and the vertical frame fire prevention member 36 are partially disposed only on the landing door 7 and the upper portions of the vertical frames 4a and 4b, and a hook 35 is fixed to the vertical frames 4a and 4b. Thus, since it is only necessary to lock the vertical frame fire-proof member 36, a fire-proof structure can be easily added to the new and existing landing doors 7.
In the above example, only one hook 35 is provided, but two or more hooks 35 may be provided. The number of holes 36b may be determined corresponding to the hook 35, and may be two or more.
Here, the vertical dimension H of the fire prevention members 22, 25, 27, 33, and 37 on the landing door 7 side in the first to fifth embodiments is not more than 1/3 of the vertical dimension of the landing door 7. Sufficient fireproof performance can be ensured. That is, even if the fire prevention members 22, 25, 27, 33, and 37 are provided only within the range of 1/3 or less of the vertical dimension of the landing entrance 2 from the upper end of the landing entrance 2, sufficient fire prevention performance can be obtained.
In the experiment, the fire prevention members 22, 25, 27, 33, only in the range of 1/10 or less of the vertical dimension of the landing entrance 2 from the upper end of the landing entrance 2 (the landing entrance vertical dimension: 2200 mm, the fire protection member vertical dimension: 200 mm). Even if 37 was provided, sufficient fireproof performance was obtained.
[Brief description of the drawings]
1 is a cross-sectional view of an elevator landing door device according to Embodiment 1 of the present invention;
FIG. 2 is a perspective view showing the main part of FIG.
3 is a sectional view of an elevator landing door device according to Embodiment 2 of the present invention,
4 is a perspective view showing the main part of FIG.
FIG. 5 is a sectional view of a landing door device for an elevator according to Embodiment 3 of the present invention,
6 is a perspective view showing the main part of FIG.
FIG. 7 is a sectional view of a landing door device for an elevator according to Embodiment 4 of the present invention,
FIG. 8 is a perspective view showing the main part of FIG.
FIG. 9 is a sectional view of an elevator landing door device according to Embodiment 5 of the present invention;
10 is a perspective view showing the main part of FIG.
11 is an exploded perspective view showing the vertical frame and the vertical frame fire prevention member of FIG.
FIG. 12 is a sectional view showing an example of a conventional elevator landing door device,
13 is a cross-sectional view taken along line XIII-XIII in FIG.

Claims (7)

垂直に延びる縦枠を有し、乗場出入口を形成する枠体、及び
上記乗場出入口を開閉する乗場の戸
を備え、
上記乗場の戸の戸開側端部の上部には、戸閉時に上記縦枠に対向する防火部材が部分的に配置され、かつ固定されており、
上記縦枠及び上記防火部材のいずれか一方には、孔が設けられており、
上記縦枠及び上記防火部材のいずれか他方には、戸閉時に上記孔に挿入され、上記乗場の戸の昇降路側への変形を制限する挿入部が設けられているエレベータの乗場ドア装置。A vertically extending vertical frame, and a frame that forms a landing doorway, and a landing door that opens and closes the landing doorway,
On the upper part of the door opening side end of the landing door, a fire prevention member facing the vertical frame when the door is closed is partially arranged and fixed,
A hole is provided in one of the vertical frame and the fire protection member,
An elevator landing door device in which one of the vertical frame and the fire prevention member is provided with an insertion portion that is inserted into the hole when the door is closed and restricts deformation of the landing door to the hoistway side. 上記防火部材は、上記乗場出入口の上端部から上記乗場出入口の上下寸法の１／３以下の範囲内に配置されている請求項１記載のエレベータの乗場ドア装置。2. The elevator landing door device according to claim 1, wherein the fire prevention member is disposed within a range of 1/3 or less of a vertical dimension of the landing entrance from the upper end of the landing entrance. 上記挿入部は、防火部材の一部を折り曲げることにより形成されている請求項１記載のエレベータの乗場ドア装置。The elevator landing door device according to claim 1, wherein the insertion portion is formed by bending a part of the fire prevention member. 垂直に延びる縦枠を有し、乗場出入口を形成する枠体、及び
上記乗場出入口を開閉する乗場の戸
を備え、
上記乗場の戸の戸開側端部の上部には、上記乗場の戸の開閉方向と平行に延びる第１の対向面を有するドア防火部材が部分的に配置され、かつ固定されており、
上記縦枠には、固定部材が固定されており、かつ上記固定部材を介して縦枠防火部材が取り付けられており、
上記縦枠防火部材は、第２の対向面を有しており、
戸閉時に上記第１の対向面が上記第２の対向面に対向することにより、上記乗場の戸の昇降路側への変形が制限されるエレベータの乗場ドア装置。A vertically extending vertical frame, and a frame that forms a landing doorway, and a landing door that opens and closes the landing doorway,
A door fire prevention member having a first facing surface extending in parallel with the opening / closing direction of the landing door is partially disposed and fixed to the upper part of the door opening side end of the landing door,
A fixing member is fixed to the vertical frame, and a vertical frame fire prevention member is attached via the fixing member,
The vertical frame fireproof member has a second facing surface,
A landing door device for an elevator in which deformation of the landing door toward the hoistway side is restricted by the first facing surface facing the second facing surface when the door is closed. 上記固定部材はクリップであり、上記クリップと上記縦枠との間に上記縦枠防火部材が挟持される請求項４記載のエレベータの乗場ドア装置。The elevator landing door device according to claim 4, wherein the fixing member is a clip, and the vertical frame fire prevention member is sandwiched between the clip and the vertical frame. 上記固定部材はフックであり、上記縦枠防火部材には、上記フックが挿入される孔が設けられている請求項４記載のエレベータの乗場ドア装置。The elevator landing door device according to claim 4, wherein the fixing member is a hook, and the vertical frame fire prevention member is provided with a hole into which the hook is inserted. 上記ドア防火部材及び上記縦枠防火部材は、上記乗場出入口の上端部から上記乗場出入口の上下寸法の１／３以下の範囲内に配置されている請求項１記載のエレベータの乗場ドア装置。2. The elevator landing door device according to claim 1, wherein the door fire prevention member and the vertical frame fire prevention member are disposed within a range of 1/3 or less of an upper and lower dimension of the landing entrance from an upper end portion of the landing entrance.
JP2003583909A 2002-04-16 2002-04-16 Elevator landing door equipment Expired - Fee Related JP4158911B2 (en)

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