JP2004051236A

JP2004051236A - Landing device for elevator

Info

Publication number: JP2004051236A
Application number: JP2002206666A
Authority: JP
Inventors: Kenji Nomura; 野村　健二; Toshiya Suzuki; 鈴木　稔也; Nobuhiro Nishimura; 西村　信寛; Masato Hanashima; 花島　真人
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2002-07-16
Filing date: 2002-07-16
Publication date: 2004-02-19
Anticipated expiration: 2022-07-16
Also published as: JP3929370B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a landing device for an elevator with less restriction on a form of a jamb related to installation of a closing mechanism in case of fire. <P>SOLUTION: An enclosure plate 22 closing a space between an upper edge part of a landing opening part 3 and the upper edge part of the jamb 4 is provided in response to a required space for the installation of the fire closing mechanism 11, and a building wall 21 composed of an interior wall of a landing is formed in front of the enclosure plate 22. As an upper frame 20 of the jamb 4 needs not be the form having a cover plate, the jamb 4 can be designed in an appropriate structure and size irrespective of the required space for the installation of the fire closing mechanism 11. Accordingly the restriction on the form of the jamb 4 related to the fire closing mechanism 11 is lessened and design freedom of the jamb 4 is improved, and in designing of the jamb 4, response to difference in wall thickness of the landing opening part 3 is made easy. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
この発明は、火災発生時に乗場を火災時閉塞機構によって遮蔽して煙が昇降路へ侵入しないように構成されエレベーターの乗場装置に関する。
【０００２】
【従来の技術】
図１１及び図１２は、従来のエレベーターの乗場装置を示す図で、図１１は乗場の正面図、図１２は図１１のＡ−Ａ線断面拡大図である。図において、１はエレベーターの昇降路、２は昇降路１に設けられた乗場、３は昇降路１の壁に設けられた乗場２の開口部である。
【０００３】
４は三方枠で、開口部３に設置されて乗場２の出入口５の縁部を形成し、側枠６及び幕板と一体に製作された上枠７によって構成されている。８は乗場ドアー装置で、三方枠４の昇降路１側に設けられて乗場２出入口５を開閉する引き戸９及び三方枠４の上枠７に設けられて引き戸９を開閉する開閉機構１０によって構成されている。
【０００４】
１１は火災時閉塞機構で、三方枠４の上方に設置されて乗場２の開口部３に配置され、回転軸線が水平方向に配置されて駆動機１２によって駆動される巻き取り機構１３、巻き取り機構１３に巻掛けられて常時は上昇位置に保持され要時に下降して乗場２出入口５を閉塞する閉塞シート体１４及び閉塞シート体１４の下降側先端に設けられたおもり１５によって構成されている。
【０００５】
１６は案内溝で、側枠６に長手が上下方向に凹設されて閉塞シート体１４の間口方向の縁部が移動可能に嵌合され、閉塞シート体１４の下降動作を案内する。１７は三方枠４の上枠７の上端から上方へ延長されて設けられた内装壁からなる乗場２の建築壁、１８は建築壁１７に接続した形成された乗場２の天井、１９は天井１８に設けられた煙感知器からなる火災検出器である。
【０００６】
従来のエレベーターの乗場装置は上記のように構成され、常時は火災時閉塞機構１１の閉塞シート体１４が上昇位置に保持され、また乗場ドアー装置８の開閉機構１０により引き戸９が駆動されて引き戸９によって乗場２の出入口５が開閉される。また、エレベーターが設置された建物に火災が発生して火災検出器１９が動作すると、この動作を介して火災時閉塞機構１１の巻き取り機構１３の制動が解放される。そして、閉塞シート体１４が主として自重により下降し乗場２の出入口５を閉塞して防災区画を形成し、昇降路１への煙、火炎の侵入を防ぐようになっている。
【０００７】
【発明が解決しようとする課題】
上記のような従来のエレベーターの乗場装置では、三方枠４に幕板と一体に製作された上枠７が設けられて、縦枠６の奥行き及び幕板の高さによって形成された空所に火災時閉塞機構１１が配置される。このため、火災時閉塞機構１１設置の所要スペースに対応した縦枠６の奥行き及び幕板の高さが必要となる。したがって、縦枠６の奥行き及び幕板の高さに関連する三方枠４の形態が制約されるという問題点があった。
【０００８】
この発明は、かかる問題点を解消するためになされたものであり、火災時閉塞機構の設置に関わる三方枠の形態の制約が少ないエレベーターの乗場装置を得ることを目的とする。
【０００９】
【課題を解決するための手段】
この発明に係るエレベーターの乗場装置においては、エレベーターの昇降路に設けられた乗場の開口部に設置されて乗場出入口の縁部を形成する三方枠と、この三方枠の昇降路側に設けられて乗場出入口を開閉する乗場ドアー装置と、三方枠の上方に設置されて乗場開口部に配置され、回転軸線が水平方向に配置された巻き取り機構及びこの巻き取り機構に巻掛けられて常時は上昇位置に保持され要時に下降して乗場出入口を閉塞する閉塞シート体からなる火災時閉塞機構と、乗場開口部の上縁部及び三方枠上縁部の間に設けられて、火災時閉塞機構の乗場側における前面に対応して配置された囲い板とが設けられる。
【００１０】
また、この発明に係るエレベーターの乗場装置においては、一側が囲い板の下縁部に締結され、他側が三方枠の上縁部に締結された囲い板取付金具が設けられる。
【００１１】
また、この発明に係るエレベーターの乗場装置においては、乗場側に開口する囲い板点検孔を有する囲い板が設けられ、また囲い板点検孔の縁部に着脱自在に装着されて囲い板点検孔を閉塞する蓋板が設けられる。
【００１２】
また、この発明に係るエレベーターの乗場装置においては、蓋板によって囲い板点検孔が閉塞されたときに動作する閉塞検出器と、この閉塞検出器に接続されて閉塞検出器の不動作時に閉塞検出器の不動作乗場における火災時閉塞機構の下降動作を阻止し、かつ閉塞検出器の不動作乗場に対するエレベーターのかごの停止を阻止する制御装置とが設けられる。
【００１３】
【発明の実施の形態】
実施の形態１．
図１及び図２は、この発明の実施の形態の一例を示す図で、図１は乗場の正面図、図２は図１のＢ−Ｂ線断面拡大図である。図において、１はエレベーターの昇降路、２は昇降路１に設けられた乗場、３は昇降路１の壁に設けられた乗場２の開口部である。
【００１４】
４は三方枠で、側枠６及び上枠２０によって構成されて開口部３に設置され乗場２の出入口５の縁部を形成する。８は乗場ドアー装置で、三方枠４の昇降路１側に設けられて乗場２出入口５を開閉する引き戸９及び三方枠４の上枠２０に設けられて引き戸９を開閉する開閉機構１０によって構成されている。
【００１５】
１１は火災時閉塞機構で、三方枠４の上方に設置されて乗場２の開口部３に配置され、回転軸線が水平方向に配置されて駆動機１２によって駆動される巻き取り機構１３、巻き取り機構１３に巻掛けられて常時は上昇位置に保持され、要時に下降して乗場２出入口５を閉塞する閉塞シート体１４及び閉塞シート体１４の下降側先端に設けられたおもり１５によって構成されている。
【００１６】
１６は案内溝で、側枠６に長手が上下方向に凹設されて閉塞シート体１４の間口方向の縁部が移動可能に嵌合され、閉塞シート体１４の下降動作を案内する。２１は乗場２の内装壁からなる建築壁で、三方枠４の上枠２０の上端から上方へ延長されて設けられて後述する囲い板の前側に設けられる。１８は建築壁２１に接続した形成された乗場２の天井、１９は天井１８に設けられた煙感知器からなる火災検出器である。
【００１７】
２２は囲い板で、上縁部が乗場２開口部３の上縁部に重合されてアンカーボルト及びこのアンカーボルトにねじ込まれたナットからなる締結具２３によって締結されて下垂し、下側が昇降路１内方向に屈折されて再度下方に屈折され下端部が三方枠４の上枠２０の前面に重合されてボルト及びこのボルトにねじ込まれたナットからなる締結具２４によって締結されている。そして、囲い板２２は乗場２開口部３の上縁部及び三方枠４上縁部の間を塞ぐように装備されて、火災時閉塞機構１１の乗場２側における前面に対応した位置に配置される。
【００１８】
上記のように構成されたエレベーターの乗場装置において、常時は火災時閉塞機構１１の閉塞シート体１４が上昇位置に保持され、また乗場ドアー装置８の開閉機構１０により引き戸９が駆動され引き戸９によって乗場２の出入口５が開閉される。また、エレベーターが設置された建物に火災が発生して火災検出器１９が動作すると、この動作を介して火災時閉塞機構１１の巻き取り機構１３の制動が解放される。そして、閉塞シート体１４が主として自重により下降し乗場２の出入口５を閉塞して防災区画を形成し、昇降路１への煙、火炎の侵入を防ぐ。
【００１９】
また、火災時閉塞機構１１設置の所要スペースに対応して構成されて、乗場２開口部３の上縁部及び三方枠４上縁部の間を塞ぐ囲い板２２が設けられる。そして、囲い板２２の前面に乗場２の内装壁からなる建築壁２１が形成される。このため、三方枠４の上枠２０を前述の幕板を有する形態のものとする必要がなく、火災時閉塞機構１１設置の所要スペースに関わりなく三方枠４を適宜な構造、寸法に設計することができる。
【００２０】
したがって、火災時閉塞機構１１の設置に対する三方枠４の形態の制約が少なくなり、三方枠４設計の自由度を向上することができる。また、乗場２開口部３の壁の厚さの差異に対して三方枠４の形態を容易に対応することができ、エレベーターの乗場装置の設計を容易化することができる。さらに、三方枠４の上枠２０等の奥行きを短く設計することも容易に可能であって、三方枠４の製作費を低減することができる。
【００２１】
実施の形態２．
図３〜図５は、この発明の他の実施の形態の一例を示す図で、図３は前述の図２相当図、図４は図３の囲い板の斜視図、図５は図３の囲い板取付金具の斜視図である。図において、図１及び図２と同符号は相当部分を示し、２５は囲い板で、上縁部が乗場２開口部３の上縁部に重合されてアンカーボルト及びこのアンカーボルトにねじ込まれたナットからなる上側締結具２３によって締結されて下垂し、下側が昇降路１内方向に屈折された屈折部２６が形成される。
【００２２】
２７は上縁部長穴で、囲い板２５の上縁部に設けられて長手が上下方向に配置され、囲い板２５幅方向に互いに離れて配置されて締結具２３が挿通される。２８は屈折部長穴で、囲い板２５の屈折部２６に設けられて長手が屈折部２６の奥行き方向に配置され、囲い板２５幅方向に互いに離れて配置される。
【００２３】
２９は囲い板取付金具で、横断面Ｌ字状をなしＬ字の一辺３０に屈折部長穴２８に対応した取付孔３１が設けられて囲い板２５の屈折部２６に重合して配置され、またＬ字の他辺３２に水平方向に長い溝穴３３が設けられて三方枠４の上枠２０の前面に重合して配置されている。
【００２４】
３４は下側締結具で、囲い板２５の屈折部長穴２８及び囲い板取付金具２９の取付孔３１に挿通されたボルトとこのボルトの挿通端にねじ込まれたナットによって構成されている。３５は取付金具締結具で、三方枠４の上枠２０前面及び囲い板取付金具２９の溝穴３３に挿通されたボルトとこのボルトの挿通端にねじ込まれたナットによって構成されている。
【００２５】
上記のように構成されたエレベーターの乗場装置においても、常時は火災時閉塞機構１１の閉塞シート体１４が上昇位置に保持され、また乗場ドアー装置８の開閉機構１０により引き戸９が駆動され引き戸９によって乗場２の出入口５が開閉される。また、エレベーターが設置された建物に火災が発生して火災検出器１９が動作すると、この動作を介して火災時閉塞機構１１の閉塞シート体１４が下降して乗場２の出入口５を閉塞して防災区画を形成し、昇降路１への煙、火炎の侵入を防ぐ。
【００２６】
また、火災時閉塞機構１１設置の所要スペースに対応して構成されて、乗場２開口部３の上縁部及び三方枠４上縁部の間を塞ぐ囲い板２５が設けられ、囲い板２５の前面に乗場２の内装壁からなる建築壁２１が形成される。したがって、詳細な説明を省略するが図３〜図５の実施の形態においても図１及び図２の実施の形態と同様な作用が得られる。
【００２７】
また、囲い板２５及び囲い板取付金具２９が上縁部長穴２７、溝穴３３等を介して締結具２３、取付金具締結具３４等によって、囲い板２５及び囲い板取付金具２９の両者が相互に締結され、また上記両者が乗場２開口部３の所定位置に据付けられる。このため、上記両者の据付作業性が向上して据付費を節減することができる。
【００２８】
実施の形態３．
図６〜図８も、この発明の他の実施の形態の一例を示す図で、図６は乗場の正面図、図７は図６のＣ−Ｃ線断面拡大図、図８は図６の点検孔箇所の拡大図である。図において、図１及び図２と同符号は相当部分を示し、３６は建築壁点検孔で、建築壁２１に設けられて三方枠４上方の火災時閉塞機構１１対応位置に配置されている。
【００２９】
３７は囲い板点検孔で、建築壁点検孔３６の開口面積よりも狭い開口面積に形成され、囲い板２２に設けられて建築壁点検孔３６の中心対応位置に配置されている。３８は蓋板で、囲い板点検孔３７を乗場２側から覆って配置され、縁部が囲い板点検孔３７の縁部に重合して配置されている。３９は取付ねじで、蓋板３８の縁部に挿通されて囲い板点検孔３７の縁部にねじ込まれて、蓋板３８を囲い板点検孔３７縁部に着脱自在に締結する。
【００３０】
上記のように構成されたエレベーターの乗場装置においても、常時は火災時閉塞機構１１の閉塞シート体１４が上昇位置に保持され、また乗場ドアー装置８の開閉機構１０により引き戸９が駆動され引き戸９によって乗場２の出入口５が開閉される。また、エレベーターが設置された建物に火災が発生して火災検出器１９が動作すると、この動作を介して火災時閉塞機構１１の閉塞シート体１４が下降して乗場２の出入口５を閉塞して防災区画を形成し、昇降路１への煙、火炎の侵入を防ぐ。
【００３１】
また、火災時閉塞機構１１設置の所要スペースに対応して構成されて、乗場２開口部３の上縁部及び三方枠４上縁部の間を塞ぐ囲い板２２が設けられて、囲い板２２の前面に乗場２の内装壁からなる建築壁２１が形成される。したがって、詳細な説明を省略するが図６〜図８の実施の形態においても図１及び図２の実施の形態と同様な作用が得られる。
【００３２】
また、建築壁２１の三方枠４上方の火災時閉塞機構１１対応位置に、建築壁点検孔３６、囲い板点検孔３７及び囲い板点検孔３７を覆って配置されて着脱自在に締結された蓋板３８が設けられる。このため、囲い板点検孔３７を介して乗場２側からの作業によって火災時閉塞機構１１の保守作業を行うことができ、保守作業を容易化し、また能率化することができる。
【００３３】
実施の形態４．
図９及び図１０も、この発明の他の実施の形態の一例を示す図で、図９は前述の図８の縦断側面図に相当する図、図１０は図９の制御装置の動作を説明するフローチャートである。なお、図９及び図１０の他は前述の図６〜図８と同様にエレベーターの乗場装置が構成される。図において、図６〜図８と同符号は相当部分を示す。
【００３４】
４０は閉塞検出器で、囲い板点検孔３７の縁部に設けられて囲い板点検孔３７の縁部に締結された蓋板３８に押圧されて動作する。４１は閉塞検出器４０に接続されたエレベーターの制御装置である。
【００３５】
上記のように構成されたエレベーターの乗場装置においても、常時は火災時閉塞機構１１の閉塞シート体１４が上昇位置に保持され、また乗場ドアー装置８の開閉機構１０により引き戸９が駆動され引き戸９によって乗場２の出入口５が開閉される。また、エレベーターが設置された建物に火災が発生して火災検出器１９が動作すると、この動作を介して火災時閉塞機構１１の閉塞シート体１４が下降して乗場２の出入口５を閉塞して防災区画を形成し、昇降路１への煙、火炎の侵入を防ぐ。
【００３６】
また、火災時閉塞機構１１設置の所要スペースに対応して構成されて、乗場２開口部３の上縁部及び三方枠４上縁部の間を塞ぐ囲い板２２が設けられて、囲い板２２の前面に乗場２の内装壁からなる建築壁２１が形成される。また、建築壁２１の火災時閉塞機構１１対応位置に、建築壁点検孔３６、囲い板点検孔３７及び蓋板３８が設けられる。したがって、詳細な説明を省略するが図９及び図１０の実施の形態においても図６〜図８の実施の形態と同様な作用が得られる。
【００３７】
また、囲い板点検孔３７を閉塞した蓋板３８に押圧されて動作する閉塞検出器４０に接続された制御装置４１によって次に述べる制御が行われる。すなわち、図１０に示すフローチャートのステップ１０１において、囲い板点検孔３７が蓋板３８により閉塞されていて閉塞検出器４０が動作していればステップ１０２へ進む。
【００３８】
そしてステップ１０２において、火災時閉塞機構１１及びエレベーターが制御装置４１によって通常時管制される。また、ステップ１０１において、乗場２が保守作業中であり囲い板点検孔３７が開放されていて、閉塞検出器４０が動作していなければステップ１０３へ進む。
【００３９】
これによりステップ１０３において、保守作業中の乗場２に設けられた火災時閉塞機構１１の閉塞シート体１４の下降動作が阻止され、また保守作業中の乗場２へのエレベーターのかごの停止が阻止される。次いでステップ１０４へ進んで、火災検出器１９が動作しなければステップ１０３へ戻り、火災検出器１９が動作すればステップ１０５へ進み、蓋板３８による囲い板点検孔３７の閉塞が表示される。
【００４０】
次にステップ１０１へ戻って、閉塞検出器４０が動作していればステップ１０２へ進み、火災検出器１９の動作を介して火災時閉塞機構１１の閉塞シート体１４が下降動作する。これによって、乗場２の出入口５が閉塞されて防災区画を形成し昇降路１への煙、火炎の侵入が防止される。
なお、図１０において図示が省略してあるが、火災発生時においては火災検出器１９の動作を介してエレベーターかごの運行が火災時制御される。
【００４１】
このような制御装置４１の機能によって、エレベーターを通常運転したまま乗場２から火災時閉塞機構１１の保守作業を行うことができる。したがって、火災時閉塞機構１１の保守作業に起因するエレベーターの運転効率低下を少なくすることができる。
【００４２】
【発明の効果】
この発明は以上説明したように、エレベーターの昇降路に設けられた乗場の開口部に設置されて乗場出入口の縁部を形成する三方枠と、この三方枠の昇降路側に設けられて乗場出入口を開閉する乗場ドアー装置と、三方枠の上方に設置されて乗場開口部に配置され、回転軸線が水平方向に配置された巻き取り機構及びこの巻き取り機構に巻掛けられて常時は上昇位置に保持され要時に下降して乗場出入口を閉塞する閉塞シート体からなる火災時閉塞機構と、乗場開口部の上縁部及び三方枠上縁部の間に設けられて、火災時閉塞機構の乗場側における前面に対応して配置された囲い板とを設けたものである。
【００４３】
このような構成により、火災時閉塞機構設置の所要スペースに対応して構成されて、乗場開口部の上縁部及び三方枠上縁部の間を塞ぐ囲い板が設けられ、また囲い板の前面に乗場の内装壁からなる建築壁が形成される。このため、三方枠の上枠を幕板を有する形態のものとする必要がなく、火災時閉塞機構設置の所要スペースに関わりなく三方枠を適宜な構造、寸法に設計することができる。したがって、火災時閉塞機構の設置に関わる三方枠の形態の制約が少なくなり、三方枠設計の自由度を向上する効果がある。また、乗場開口部の壁の厚さの差異に対するエレベーターの乗場装置設計の対応を容易化する効果がある。
【００４４】
また、この発明は以上説明したように、一側が囲い板の下縁部に締結され、他側が三方枠の上縁部に締結された囲い板取付金具を設けたものである。
【００４５】
このような構成により、火災時閉塞機構設置の所要スペースに対応して構成されて、乗場開口部の上縁部及び三方枠上縁部の間を塞ぎ、下縁部が囲い板取付金具を介して三方枠の上縁部に締結された囲い板が設けられる。また、囲い板の前面に乗場の内装壁からなる建築壁が形成される。このため、三方枠の上枠を幕板を有する形態のものとする必要がなく、火災時閉塞機構設置の所要スペースに関わりなく適宜な構造、寸法に設計することができる。したがって、火災時閉塞機構の設置に関わる三方枠の形態の制約が少なくなり、三方枠設計の自由度を向上する効果がある。また、乗場開口部の壁の厚さの差異に対するエレベーターの乗場装置設計の対応を容易化する効果がある。
また、囲い板の下縁部に囲い板取付金具が締結されてこの囲い板取付金具を介して三方枠の上縁部に締結される。そして、これらの締結部に長穴を配置することによって乗場開口部の縁部等に対する囲い板の締結位置を容易に調整することができる。これにより、囲い板を簡易な作業によって所定位置に据付けることができ、据付作業性が向上して据付費を節減する効果がある。
【００４６】
また、この発明は以上説明したように、乗場側に開口する囲い板点検孔を有する囲い板を設け、また囲い板点検孔の縁部に着脱自在に装着されて囲い板点検孔を閉塞する蓋板を設けたものである。
【００４７】
このような構成により、火災時閉塞機構設置の所要スペースに対応して構成されて、乗場開口部の上縁部及び三方枠上縁部の間を塞ぎ、乗場側に開口した囲い板点検孔を有する囲い板が設けられる。また、囲い板点検孔を着脱自在に閉塞する蓋板が設けられ、また囲い板の前面に乗場の内装壁からなる建築壁が形成される。このため、三方枠の上枠を幕板を有する形態のものとする必要がなく、火災時閉塞機構設置の所要スペースに関わりなく適宜な構造、寸法に設計することができる。したがって、火災時閉塞機構の設置に関わる三方枠の形態の制約が少なくなり三方枠設計の自由度を向上する効果がある。また、乗場開口部の壁の厚さの差異に対するエレベーターの乗場装置設計の対応を容易化する効果がある。
また、囲い板に乗場側に開口した囲い板点検孔を設け、囲い板点検孔を着脱自在に閉塞する蓋板が設けられる。このため、囲い板点検孔を介して乗場側からの作業によって火災時閉塞機構の保守作業を行うことができ、保守作業を容易化し、また能率化する効果がある。
【００４８】
また、この発明は以上説明したように、蓋板によって囲い板点検孔が閉塞されたときに動作する閉塞検出器と、この閉塞検出器に接続されて閉塞検出器の不動作時に閉塞検出器の不動作乗場における火災時閉塞機構の下降動作を阻止し、かつ閉塞検出器の不動作乗場に対するエレベーターのかごの停止を阻止する制御装置とを設けたものである。
【００４９】
このような構成により、火災時閉塞機構設置の所要スペースに対応して構成されて、乗場開口部の上縁部及び三方枠上縁部の間を塞ぎ、乗場側に開口した囲い板点検孔を有する囲い板が設けられる。また、囲い板点検孔を着脱自在に閉塞する蓋板が設けられ、また囲い板の前面に乗場の内装壁からなる建築壁が形成される。このため、三方枠の上枠を幕板を有する形態のものとする必要がなく、火災時閉塞機構設置の所要スペースに関わりなく適宜な構造、寸法に設計することができる。したがって、火災時閉塞機構の設置に関わる三方枠の形態の制約が少なくなり三方枠設計の自由度を向上する効果がある。また、乗場開口部の壁の厚さの差異に対するエレベーターの乗場装置設計の対応を容易化する効果がある。
また、囲い板に乗場側に開口した囲い板点検孔を設け、囲い板点検孔を着脱自在に閉塞する蓋板が設けられる。このため、囲い板点検孔を介して乗場側からの作業によって火災時閉塞機構の保守作業を行うことができ、保守作業を容易化し、また能率化する効果がある。
さらに、蓋板によって囲い板点検孔が閉塞されたときに動作する閉塞検出器と、この閉塞検出器に接続されて閉塞検出器の不動作時に閉塞検出器の不動作乗場における火災時閉塞機構の下降動作を阻止し、かつ閉塞検出器の不動作乗場に対するエレベーターのかごの停止を阻止する制御装置とが設けられる。これによって、制御装置の機能によって、エレベーターを通常運転したまま乗場から火災時閉塞機構の保守作業を行うことができ、保守作業能率を向上する効果がある。また、火災時閉塞機構の保守作業に起因するエレベーターの運転効率低下を少なくする効果がある。
【図面の簡単な説明】
【図１】この発明の実施の形態１を示す図で、乗場の正面図。
【図２】図１のＢ−Ｂ線断面拡大図。
【図３】この発明の実施の形態２を示す図で、前述の図２相当図。
【図４】図３の囲い板の斜視図。
【図５】図３の囲い板取付金具の斜視図。
【図６】この発明の実施の形態３を示す図で、乗場の正面図。
【図７】図６のＣ−Ｃ線断面拡大図。
【図８】図６の点検孔箇所の拡大図。
【図９】この発明の実施の形態４を示す図で、前述の図８の縦断側面図に相当する図。
【図１０】図９の制御装置の動作を説明するフローチャート。
【図１１】従来のエレベーターの乗場装置を示す図で、乗場の正面図。
【図１２】図１１のＡ−Ａ線断面拡大図。
【符号の説明】
１　昇降路、２　乗場、３　開口部、４　三方枠、５　出入口、８　乗場ドアー装置、１１　火災時閉塞機構、１３　巻き取り機構、１４　閉塞シート体、２２　囲い板、２９　囲い板取付金具、３７　囲い板点検孔、３８　蓋板、４０
閉塞検出器、４１　制御装置。[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a landing apparatus for an elevator configured to block a landing by a fire closing mechanism when a fire occurs so that smoke does not enter the hoistway.
[0002]
[Prior art]
11 and 12 are diagrams showing a conventional elevator hall device. FIG. 11 is a front view of the hall, and FIG. 12 is an enlarged cross-sectional view taken along line AA of FIG. In the figure, 1 is a hoistway of an elevator, 2 is a hall provided on the hoistway 1, and 3 is an opening of a hall 2 provided on a wall of the hoistway 1.
[0003]
Reference numeral 4 denotes a three-sided frame, which is installed in the opening 3 and forms an edge of the entrance 5 of the landing 2 and is constituted by a side frame 6 and an upper frame 7 integrally formed with a curtain plate. A landing door device 8 is provided on the hoistway 1 side of the three-way frame 4 to open and close the entrance 5 of the landing 2 and an opening / closing mechanism 10 provided on the upper frame 7 of the three-way frame 4 to open and close the sliding door 9. Have been.
[0004]
Reference numeral 11 denotes a fire closing mechanism, which is provided above the three-sided frame 4 and is disposed in the opening 3 of the hall 2, and has a rotation axis arranged in a horizontal direction and is driven by a driving device 12. It is wound around the mechanism 13, and is constituted by a closing sheet body 14 which is always held at the ascending position and is lowered when necessary to close the entrance 2 of the landing 2, and a weight 15 provided at the lower end of the closing sheet body 14. .
[0005]
Reference numeral 16 denotes a guide groove, the longitudinal length of which is recessed in the side frame 6 so that an edge of the closing sheet body 14 in the frontage direction is movably fitted to guide the lowering operation of the closing sheet body 14. Reference numeral 17 denotes a building wall of the hall 2 composed of an interior wall extending upward from the upper end of the upper frame 7 of the three-way frame 4, 18 a ceiling of the hall 2 formed and connected to the building wall 17, and 19 a ceiling 18. It is a fire detector consisting of a smoke detector provided in.
[0006]
The conventional elevator landing apparatus is configured as described above, and the closing sheet body 14 of the fire closing mechanism 11 is always held at the raised position, and the sliding door 9 is driven by the opening / closing mechanism 10 of the landing door apparatus 8 to slide the sliding door. The entrance 5 of the landing 2 is opened and closed by 9. Further, when a fire occurs in the building where the elevator is installed and the fire detector 19 operates, the braking of the winding mechanism 13 of the fire closing mechanism 11 is released through this operation. The closing sheet 14 descends mainly by its own weight and closes the entrance 5 of the landing 2 to form a disaster prevention section, thereby preventing smoke and flame from entering the hoistway 1.
[0007]
[Problems to be solved by the invention]
In the conventional elevator landing apparatus as described above, the three-sided frame 4 is provided with the upper frame 7 integrally formed with the curtain plate, and is provided in the space formed by the depth of the vertical frame 6 and the height of the curtain plate. A fire closing mechanism 11 is provided. For this reason, the depth of the vertical frame 6 and the height of the curtain plate corresponding to the required space for installing the fire closing mechanism 11 are required. Therefore, there is a problem that the form of the three-sided frame 4 related to the depth of the vertical frame 6 and the height of the curtain plate is restricted.
[0008]
The present invention has been made in order to solve such a problem, and an object of the present invention is to provide an elevator landing apparatus in which the form of a three-way frame related to the installation of a fire closing mechanism is less restricted.
[0009]
[Means for Solving the Problems]
In the elevator landing apparatus according to the present invention, a three-sided frame that is installed at an opening of a landing provided on a hoistway of an elevator to form an edge of a landing entrance, and a landing that is provided on the hoistway side of the three-way frame A landing door device that opens and closes the entrance, a winding mechanism that is installed above the three-sided frame and is located at the landing opening, and has a rotation axis that is arranged in a horizontal direction, and a winding mechanism that is wound around the winding mechanism and is always in a raised position A fire closing mechanism comprising a closing sheet body which is held at a predetermined position and lowers when necessary to close the landing entrance, and a landing of the fire closing mechanism provided between the upper edge of the landing opening and the upper edge of the three-way frame. And an enclosing plate arranged corresponding to the front surface on the side.
[0010]
Further, in the elevator landing apparatus according to the present invention, an enclosing plate mounting bracket is provided, one side of which is fastened to a lower edge portion of the enclosing plate, and the other side of which is fastened to an upper edge portion of the three-sided frame.
[0011]
Further, in the elevator landing apparatus according to the present invention, a shroud having a shroud inspection hole opened on the landing side is provided, and the shroud inspection hole is detachably attached to an edge of the shroud inspection hole. A lid plate for closing is provided.
[0012]
Further, in the elevator landing apparatus according to the present invention, a blockage detector that operates when the cover plate inspection hole is closed by the cover plate, and a blockage detection device that is connected to the blockage detector and detects the blockage when the blockage detector is not operated. A control device is provided for preventing the lowering operation of the fire closing mechanism in the non-operating landing of the vessel and preventing the elevator car from stopping relative to the non-operating landing of the blocking detector.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
1 and 2 are views showing an example of an embodiment of the present invention. FIG. 1 is a front view of a landing, and FIG. 2 is an enlarged sectional view taken along line BB of FIG. In the figure, 1 is a hoistway of an elevator, 2 is a hall provided on the hoistway 1, and 3 is an opening of a hall 2 provided on a wall of the hoistway 1.
[0014]
Reference numeral 4 denotes a three-sided frame, which is constituted by the side frame 6 and the upper frame 20 and is installed in the opening 3 to form an edge of the entrance 5 of the landing 2. Reference numeral 8 denotes a landing door device which is provided on the hoistway 1 side of the three-way frame 4 and opens and closes the entrance 5 of the landing 2 and an opening / closing mechanism 10 provided on the upper frame 20 of the three-way frame 4 to open and close the sliding door 9. Have been.
[0015]
Reference numeral 11 denotes a fire closing mechanism, which is provided above the three-sided frame 4 and is disposed in the opening 3 of the hall 2, and has a rotation axis arranged in a horizontal direction and is driven by a driving device 12. It is wound around the mechanism 13 and is always held at the ascending position, and is constituted by a closing sheet body 14 that lowers when necessary and closes the entrance 2 of the landing 2 and a weight 15 provided at the leading end of the closing sheet body 14 on the descending side. I have.
[0016]
Reference numeral 16 denotes a guide groove, the longitudinal length of which is recessed in the side frame 6 so that an edge of the closing sheet body 14 in the frontage direction is movably fitted to guide the lowering operation of the closing sheet body 14. Reference numeral 21 denotes an architectural wall, which is an interior wall of the hall 2, extending upward from the upper end of the upper frame 20 of the three-sided frame 4, and provided on the front side of an enclosing plate described later. Reference numeral 18 denotes a ceiling of the landing 2 formed to be connected to the building wall 21, and reference numeral 19 denotes a fire detector including a smoke detector provided on the ceiling 18.
[0017]
Reference numeral 22 denotes an enclosing plate, the upper edge of which is overlapped with the upper edge of the opening 2 of the landing 2 and is fastened and lowered by a fastener 23 comprising an anchor bolt and a nut screwed into the anchor bolt, and the lower side is a hoistway. 1. The inner frame is bent inward and bent downward again, and the lower end is overlapped on the front surface of the upper frame 20 of the three-way frame 4 and fastened by a fastener 24 composed of a bolt and a nut screwed into the bolt. The shroud 22 is provided so as to close the upper edge of the hall 3 opening 3 and the upper edge of the three-sided frame 4, and is disposed at a position corresponding to the front of the fire closing mechanism 11 on the hall 2 side. You.
[0018]
In the elevator landing apparatus configured as described above, the closing sheet body 14 of the fire closing mechanism 11 is normally held at the raised position, and the sliding door 9 is driven by the opening and closing mechanism 10 of the landing door apparatus 8, and the sliding door 9 is used. The entrance 5 of the landing 2 is opened and closed. Further, when a fire occurs in the building where the elevator is installed and the fire detector 19 operates, the braking of the winding mechanism 13 of the fire closing mechanism 11 is released through this operation. Then, the closing sheet body 14 descends mainly by its own weight and closes the entrance 5 of the landing 2 to form a disaster prevention section, thereby preventing smoke and flame from entering the hoistway 1.
[0019]
In addition, a surrounding plate 22 is provided corresponding to a required space for installing the fire closing mechanism 11 and closing a space between an upper edge of the opening 3 of the hall 2 and an upper edge of the three-way frame 4. Then, an architectural wall 21 composed of an interior wall of the hall 2 is formed in front of the surrounding plate 22. Therefore, it is not necessary to form the upper frame 20 of the three-sided frame 4 having the above-mentioned curtain plate, and the three-sided frame 4 is designed to have an appropriate structure and dimensions regardless of the required space for installing the fire closing mechanism 11. be able to.
[0020]
Therefore, the restrictions on the configuration of the three-sided frame 4 with respect to the installation of the fire closing mechanism 11 are reduced, and the degree of freedom in designing the three-sided frame 4 can be improved. Further, the form of the three-sided frame 4 can easily cope with the difference in the thickness of the wall of the hall 2 opening 3, and the design of the elevator hall apparatus can be facilitated. Further, it is possible to easily design the depth of the upper frame 20 and the like of the three-sided frame 4 to be short, so that the manufacturing cost of the three-sided frame 4 can be reduced.
[0021]
Embodiment 2 FIG.
3 to 5 are views showing an example of another embodiment of the present invention. FIG. 3 is a diagram corresponding to FIG. 2 described above, FIG. 4 is a perspective view of the enclosing plate of FIG. 3, and FIG. It is a perspective view of a surrounding plate mounting bracket. In the figures, the same reference numerals as those in FIGS. 1 and 2 denote corresponding parts, and 25 is a shroud plate whose upper edge is overlapped with the upper edge of the landing 2 opening 3 and screwed into the anchor bolt and this anchor bolt. A bent portion 26 is formed by being fastened by an upper fastener 23 formed of a nut and hanging down, and a lower portion of which is bent inward in the hoistway 1.
[0022]
Reference numeral 27 denotes an elongated hole at the upper edge, which is provided at the upper edge of the shroud 25 and whose length is arranged in the up-down direction, and which is arranged apart from each other in the width direction of the shroud 25 and the fastener 23 is inserted. Reference numeral 28 denotes a bending portion elongated hole, which is provided in the bending portion 26 of the surrounding plate 25 and whose length is arranged in the depth direction of the bending portion 26 and separated from each other in the width direction of the surrounding plate 25.
[0023]
Reference numeral 29 denotes an enclosing plate mounting bracket, which has an L-shaped cross section and has a mounting hole 31 corresponding to the refracting portion elongated hole 28 on one side 30 of the L-shape, and is arranged so as to overlap the refracting portion 26 of the enclosing plate 25. A long slot 33 is provided in the other side 32 of the L-shape in the horizontal direction, and is arranged on the front surface of the upper frame 20 of the three-sided frame 4 so as to overlap.
[0024]
Numeral 34 denotes a lower fastener, which is constituted by a bolt inserted into the bending hole 28 of the enclosing plate 25 and the mounting hole 31 of the enclosing plate mounting bracket 29, and a nut screwed into the insertion end of the bolt. Reference numeral 35 denotes a mounting fastener, which is composed of a bolt inserted into the slot 33 of the front face of the upper frame 20 of the three-way frame 4 and the enclosure mounting bracket 29, and a nut screwed into the insertion end of the bolt.
[0025]
Also in the elevator landing apparatus configured as described above, the closing sheet body 14 of the fire closing mechanism 11 is normally kept at the raised position, and the sliding door 9 is driven by the opening / closing mechanism 10 of the landing door apparatus 8 to drive the sliding door 9. The entrance 5 of the landing 2 is opened and closed. Further, when a fire occurs in the building where the elevator is installed and the fire detector 19 operates, the closing sheet body 14 of the fire closing mechanism 11 descends through this operation to close the entrance 5 of the landing 2 and to close the entrance 5 of the hall 2. A disaster prevention section is formed to prevent smoke and flame from entering the hoistway 1.
[0026]
Further, an enclosure plate 25 is provided corresponding to a required space for installation of the fire closing mechanism 11, and closes between an upper edge of the hall 2 opening 3 and an upper edge of the three-sided frame 4. An architectural wall 21 composed of an interior wall of the hall 2 is formed on the front surface. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 and 2 can be obtained in the embodiment of FIGS.
[0027]
Further, the surrounding plate 25 and the surrounding plate mounting bracket 29 are connected to each other by the fastener 23, the mounting bracket fastening member 34, and the like via the upper edge slot 27, the slot 33, and the like. , And both are installed at predetermined positions in the opening 3 of the landing 2. For this reason, the installation workability of the above two is improved, and the installation cost can be reduced.
[0028]
Embodiment 3 FIG.
6 to 8 also show another embodiment of the present invention. FIG. 6 is a front view of a landing, FIG. 7 is an enlarged cross-sectional view taken along line CC of FIG. 6, and FIG. It is an enlarged view of an inspection hole location. In the drawings, the same reference numerals as those in FIGS. 1 and 2 denote corresponding parts, and reference numeral 36 denotes a building wall inspection hole, which is provided on the building wall 21 and is disposed above the three-way frame 4 at a position corresponding to the fire closing mechanism 11.
[0029]
Reference numeral 37 denotes an enclosing plate inspection hole having an opening area smaller than that of the building wall inspection hole 36, provided on the enclosing plate 22, and arranged at a position corresponding to the center of the building wall inspection hole 36. Reference numeral 38 denotes a cover plate, which is disposed so as to cover the inspection hole 37 for the surrounding plate from the landing 2 side, and has an edge overlapping the edge of the inspection hole 37 for the surrounding plate. A mounting screw 39 is inserted into the edge of the cover plate 38 and screwed into the edge of the inspection hole 37 to fasten the cover 38 to the edge of the inspection hole 37 detachably.
[0030]
Also in the elevator landing apparatus configured as described above, the closing sheet body 14 of the fire closing mechanism 11 is normally kept at the raised position, and the sliding door 9 is driven by the opening / closing mechanism 10 of the landing door apparatus 8 to drive the sliding door 9. The entrance 5 of the landing 2 is opened and closed. Further, when a fire occurs in the building where the elevator is installed and the fire detector 19 operates, the closing sheet body 14 of the fire closing mechanism 11 descends through this operation to close the entrance 5 of the landing 2 and to close the entrance 5 of the hall 2. A disaster prevention section is formed to prevent smoke and flame from entering the hoistway 1.
[0031]
Further, an enclosure plate 22 is provided corresponding to a required space for installation of the fire closing mechanism 11 and closes between an upper edge of the opening 3 of the hall 2 and an upper edge of the three-sided frame 4. An architectural wall 21 composed of an interior wall of the hall 2 is formed in front of the building 2. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 and 2 can be obtained in the embodiment of FIGS.
[0032]
Further, a lid which is disposed at a position corresponding to the fire closing mechanism 11 above the three-way frame 4 of the building wall 21 and covers the building wall inspection hole 36, the shroud plate inspection hole 37, and the shroud plate inspection hole 37, and is detachably fastened. A plate 38 is provided. For this reason, maintenance work of the fire closing mechanism 11 can be performed by work from the hall 2 side via the enclosure plate inspection hole 37, and maintenance work can be facilitated and streamlined.
[0033]
Embodiment 4 FIG.
FIGS. 9 and 10 also show an example of another embodiment of the present invention. FIG. 9 is a view corresponding to the above-described longitudinal sectional side view of FIG. 8, and FIG. 10 explains the operation of the control device of FIG. FIG. Except for FIGS. 9 and 10, an elevator hall device is configured in the same manner as in FIGS. 6 to 8 described above. In the figure, the same reference numerals as those in FIGS.
[0034]
Reference numeral 40 denotes a blockage detector, which is operated by being pressed by a lid plate 38 provided at the edge of the inspection hole 37 and fastened to the edge of the inspection hole 37. Reference numeral 41 denotes an elevator control device connected to the blockage detector 40.
[0035]
Also in the elevator landing apparatus configured as described above, the closing sheet body 14 of the fire closing mechanism 11 is normally kept at the raised position, and the sliding door 9 is driven by the opening / closing mechanism 10 of the landing door apparatus 8 to drive the sliding door 9. The entrance 5 of the landing 2 is opened and closed. Further, when a fire occurs in the building where the elevator is installed and the fire detector 19 operates, the closing sheet body 14 of the fire closing mechanism 11 descends through this operation to close the entrance 5 of the landing 2 and to close the entrance 5 of the hall 2. A disaster prevention section is formed to prevent smoke and flame from entering the hoistway 1.
[0036]
Further, an enclosure plate 22 is provided corresponding to a required space for installation of the fire closing mechanism 11 and closes between an upper edge of the opening 3 of the hall 2 and an upper edge of the three-sided frame 4. An architectural wall 21 composed of an interior wall of the hall 2 is formed in front of the building 2. In addition, a building wall inspection hole 36, an enclosure plate inspection hole 37, and a cover plate 38 are provided at a position of the building wall 21 corresponding to the fire closing mechanism 11. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 6 to 8 can be obtained in the embodiment of FIGS. 9 and 10.
[0037]
Further, the control described below is performed by a control device 41 connected to a blockage detector 40 which operates by being pressed by a cover plate 38 closing the cover plate inspection hole 37. That is, in step 101 of the flowchart shown in FIG. 10, if the cover plate inspection hole 37 is closed by the cover plate 38 and the blockage detector 40 is operating, the process proceeds to step 102.
[0038]
Then, at step 102, the fire closing mechanism 11 and the elevator are normally controlled by the control device 41. In step 101, if the hall 2 is under maintenance work, the shroud plate inspection hole 37 is open, and the blockage detector 40 is not operating, the process proceeds to step 103.
[0039]
Thereby, in step 103, the lowering operation of the closing sheet 14 of the fire closing mechanism 11 provided in the hall 2 under maintenance is prevented, and the stop of the elevator car to the hall 2 under maintenance is prevented. You. Next, proceeding to step 104, if the fire detector 19 does not operate, the process returns to step 103, and if the fire detector 19 operates, the process proceeds to step 105, where the closing of the surrounding plate inspection hole 37 by the cover plate 38 is displayed.
[0040]
Next, returning to step 101, if the blockage detector 40 is operating, the process proceeds to step 102, and the blockage sheet member 14 of the fire-side blocking mechanism 11 is lowered via the operation of the fire detector 19. As a result, the entrance 5 of the landing 2 is closed to form a disaster prevention section, thereby preventing smoke and flame from entering the hoistway 1.
Although illustration is omitted in FIG. 10, when a fire occurs, the operation of the elevator car is controlled at the time of fire through the operation of the fire detector 19.
[0041]
With such a function of the control device 41, the maintenance work of the fire closing mechanism 11 can be performed from the hall 2 while the elevator is normally operated. Therefore, it is possible to reduce a decrease in the operating efficiency of the elevator caused by the maintenance work of the fire closing mechanism 11.
[0042]
【The invention's effect】
As described above, the present invention provides a three-way frame that is installed at an opening of a landing provided on a hoistway of an elevator and forms an edge of a landing doorway, and a landing doorway that is provided on the hoistway side of the three-way frame. A landing door device that opens and closes, a winding mechanism that is installed above the three-sided frame and is located at the landing opening, and has a rotation axis that is arranged horizontally and is wound around the winding mechanism and is always kept at the ascending position And a fire closing mechanism comprising a closing sheet body which descends when necessary and closes the hall entrance, and is provided between the upper edge of the hall opening and the upper edge of the three-sided frame, on the hall side of the fire closing mechanism. And an enclosing plate arranged corresponding to the front surface.
[0043]
With such a configuration, a shroud is provided corresponding to the required space for installing the fire closing mechanism, and a shroud is provided to close between the upper edge of the landing opening and the upper edge of the three-way frame. An architectural wall consisting of the interior wall of the hall is formed. Therefore, the upper frame of the three-way frame does not need to have a form having a curtain plate, and the three-way frame can be designed to have an appropriate structure and dimensions irrespective of the required space for installing the fire closing mechanism. Therefore, restrictions on the form of the three-sided frame related to the installation of the fire closing mechanism are reduced, and the degree of freedom in designing the three-sided frame is improved. In addition, there is an effect that the design of the elevator landing apparatus can be easily handled with respect to the difference in wall thickness of the landing opening.
[0044]
Further, as described above, the present invention is provided with an enclosure plate mounting bracket fastened on one side to the lower edge of the enclosure plate and on the other side to the upper edge of the three-way frame.
[0045]
With such a configuration, it is configured corresponding to the required space for the installation of the fire closing mechanism, closes the upper edge of the hall opening and the upper edge of the three-sided frame, and the lower edge is connected to the surrounding plate mounting bracket. An enclosing plate fastened to the upper edge of the three-way frame is provided. In addition, an architectural wall composed of an interior wall of the hall is formed in front of the shroud. For this reason, the upper frame of the three-way frame does not need to have a form having a curtain plate, and can be designed to have an appropriate structure and dimensions irrespective of the required space for installing the fire closing mechanism. Therefore, restrictions on the form of the three-sided frame related to the installation of the fire closing mechanism are reduced, and the degree of freedom in designing the three-sided frame is improved. In addition, there is an effect that the design of the elevator landing apparatus can be easily handled with respect to the difference in wall thickness of the landing opening.
Also, a surrounding plate mounting bracket is fastened to the lower edge of the surrounding plate and fastened to the upper edge of the three-way frame via the surrounding plate mounting bracket. By arranging the elongated holes in these fastening portions, the fastening position of the surrounding plate with respect to the edge of the landing opening or the like can be easily adjusted. Thereby, the shroud plate can be installed at a predetermined position by a simple operation, and there is an effect that the installation workability is improved and the installation cost is reduced.
[0046]
Further, as described above, the present invention provides a shroud having a shroud inspection hole opened on the landing side, and a lid which is detachably attached to an edge of the shroud inspection hole to close the shroud inspection hole. A plate is provided.
[0047]
With such a configuration, it is configured corresponding to the required space for the installation of the fire closing mechanism, closes the upper edge of the landing opening and the upper edge of the three-sided frame, and has a shroud inspection hole opened on the landing side. A surrounding shroud is provided. Further, a cover plate is provided to removably close the cover plate inspection hole, and an architectural wall composed of an interior wall of the hall is formed in front of the cover plate. For this reason, the upper frame of the three-way frame does not need to have a form having a curtain plate, and can be designed to have an appropriate structure and dimensions irrespective of the required space for installing the fire closing mechanism. Therefore, the restriction on the form of the three-way frame related to the installation of the fire closing mechanism is reduced, and the degree of freedom in designing the three-way frame is improved. In addition, there is an effect that the design of the elevator landing apparatus can be easily handled with respect to the difference in wall thickness of the landing opening.
In addition, an enclosing plate inspection hole that is open to the landing side is provided in the enclosing plate, and a lid plate that removably closes the enclosing plate inspection hole is provided. For this reason, the maintenance work of the fire closing mechanism can be performed by the work from the landing side via the enclosure plate inspection hole, and there is an effect that the maintenance work is facilitated and the efficiency is improved.
[0048]
Further, as described above, the present invention provides a blockage detector that operates when the cover plate inspection hole is closed by the cover plate, and a blockage detector that is connected to the blockage detector and operates when the blockage detector does not operate. A control device is provided for preventing the lowering operation of the fire closing mechanism at the non-operating landing and preventing the elevator car from stopping at the non-operating landing of the blocking detector.
[0049]
With such a configuration, it is configured corresponding to the required space for the installation of the fire closing mechanism, closes the upper edge of the landing opening and the upper edge of the three-sided frame, and has a shroud inspection hole opened on the landing side. A surrounding shroud is provided. Further, a cover plate is provided to removably close the cover plate inspection hole, and an architectural wall composed of an interior wall of the hall is formed in front of the cover plate. For this reason, the upper frame of the three-way frame does not need to have a form having a curtain plate, and can be designed to have an appropriate structure and dimensions irrespective of the required space for installing the fire closing mechanism. Therefore, the restriction on the form of the three-way frame related to the installation of the fire closing mechanism is reduced, and the degree of freedom in designing the three-way frame is improved. In addition, there is an effect that the design of the elevator landing apparatus can be easily handled with respect to the difference in wall thickness of the landing opening.
In addition, an enclosing plate inspection hole that is open to the landing side is provided in the enclosing plate, and a lid plate that removably closes the enclosing plate inspection hole is provided. For this reason, the maintenance work of the fire closing mechanism can be performed by the work from the landing side via the enclosure plate inspection hole, and there is an effect that the maintenance work is facilitated and the efficiency is improved.
Further, a blockage detector that operates when the cover plate inspection hole is closed by the cover plate, and a blockage mechanism in the event of a fire at the landing where the blockage detector is inoperative when the blockage detector is inoperative when connected to the blockage detector. A control device is provided to prevent the descent operation and to prevent the elevator car from stopping relative to the inactive landing of the blockage detector. With this, the function of the control device allows maintenance work of the fire closing mechanism to be performed from the landing while the elevator is operating normally, which has the effect of improving maintenance work efficiency. Further, there is an effect of reducing a decrease in the operating efficiency of the elevator due to the maintenance work of the fire closing mechanism.
[Brief description of the drawings]
FIG. 1 is a view showing a first embodiment of the present invention, and is a front view of a landing.
FIG. 2 is an enlarged cross-sectional view taken along the line BB of FIG. 1;
FIG. 3 is a view showing a second embodiment of the present invention, and is a view corresponding to FIG. 2 described above.
FIG. 4 is a perspective view of the shroud of FIG. 3;
FIG. 5 is a perspective view of a surrounding plate mounting bracket of FIG. 3;
FIG. 6 shows the third embodiment of the present invention, and is a front view of a landing.
FIG. 7 is an enlarged cross-sectional view taken along the line CC of FIG. 6;
FIG. 8 is an enlarged view of an inspection hole in FIG. 6;
FIG. 9 is a view showing a fourth embodiment of the present invention, and is a view corresponding to the aforementioned longitudinal side view of FIG. 8;
FIG. 10 is a flowchart illustrating the operation of the control device in FIG. 9;
FIG. 11 is a view showing a conventional elevator hall device, and is a front view of the hall.
FIG. 12 is an enlarged sectional view taken along line AA of FIG. 11;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 hoistway, 2 landings, 3 openings, 4 three-sided frames, 5 entrances, 8 landing door devices, 11 fire closing mechanism, 13 winding mechanism, 14 closing sheet body, 22 shroud plate, 29 shroud plate mounting bracket, 37 Enclosure inspection hole, 38 lid plate, 40
Blockage detector, 41 controller.

Claims

A three-way frame installed at an opening of a landing provided in an elevator hoistway to form an edge of the landing entrance, and a landing door device provided on the hoistway side of the three-way frame to open and close the landing entrance; A winding mechanism that is installed above the three-way frame and is disposed at the landing opening, and has a rotation axis that is horizontally disposed, and is wound around the winding mechanism, and is always held at the ascending position and lowered when necessary. And a fire closing mechanism comprising a blocking sheet body for closing the landing entrance, and provided between the upper edge of the landing opening and the upper edge of the three-sided frame, on the landing side of the fire closing mechanism. A landing device for an elevator having a shroud arranged in front of the elevator.

2. The elevator landing hall device according to claim 1, further comprising an enclosing plate mounting bracket fastened on one side to a lower edge portion of the enclosing plate and an opposite side fastened to an upper edge portion of the three-sided frame.

The shroud plate has a shroud plate inspection hole that opens to the landing side, and a lid plate that is detachably attached to an edge of the shroud plate inspection hole to close the shroud plate inspection hole is provided. The elevator hall device according to any one of claims 1 and 2.

A blockage detector that operates when the cover plate inspection hole is closed by the cover plate, and a blockage mechanism that is connected to the blockage detector when the blockage detector does not operate and the blockage detector does not operate when the fire occurs at the landing. 4. The elevator landing apparatus according to claim 3, further comprising: a control device for preventing a descending operation and stopping an elevator car from stopping at the inactive landing.