JP2004224529A - Landing detection device of elevator - Google Patents

Landing detection device of elevator Download PDF

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Publication number
JP2004224529A
JP2004224529A JP2003016068A JP2003016068A JP2004224529A JP 2004224529 A JP2004224529 A JP 2004224529A JP 2003016068 A JP2003016068 A JP 2003016068A JP 2003016068 A JP2003016068 A JP 2003016068A JP 2004224529 A JP2004224529 A JP 2004224529A
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Japan
Prior art keywords
landing
landing detection
light
detection switch
detector
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JP2003016068A
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JP4252323B2 (en
Inventor
Hidetsugu Ishihara
英嗣 石原
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Toshiba Elevator and Building Systems Corp
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Toshiba Elevator Co Ltd
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  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a landing detection device of an elevator improving detection accuracy by preventing malfunction of the photoelectric landing detector. <P>SOLUTION: A photoelectric landing detection switch 10 which emits the light within a prescribed operation area toward the side of a cage room 2 and operates upon receiving the light, is mounted at the one end side of the doorsill 6 provided in the cage room 2. A landing detection plate 18 which reflects the light emitted by the landing detection switch 10 toward the landing detection switch 10, is mounted at the one end side of a landing floor doorsill 16. A malfunction protective cover 19 is mounted to prevent the light within the operation area of the landing detection switch 10 excluding the light of the landing detection switch 10 reflected by the landing detection plate part 18 from entering the landing detection switch at the one end side of the landing floor doorsill 16. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、エレベータのかご室が昇降する際に、着床しようとする階床の所定位置に到達したかを検出する着床検出装置に関するものである。
【0002】
【従来の技術】
エレベータは、かご室が昇降する際に、着床しようとする階床の所定位置に到達したか否かを検出する着床検出装置を備えている。この種の着床検出装置としては、かご室に設けられたかごドア敷居の一端側に取り付けられた光電式の着床検出器である着床検出スイッチと、各階床の乗場ドア敷居の一端側に取り付けられた着床検出部材である着床検出板とから成るものが知られている。
【0003】
着床検出スイッチは、ある任意の動作域内の光をかご室の側方に向けて射出する。一方、着床検出板は、着床検出スイッチが射出した光を着床検出スイッチに向けて反射するものであり、その昇降方向の長さは、着床精度に応じて設定されている。着床検出スイッチは、着床検出板からの反射光を受光してかご室が所定位置に到達したか否かを検出する。
【0004】
【発明が解決しようとする課題】
しかしながら、上述したような着床検出装置においては、着床検出スイッチの光の動作域内において、着床検出スイッチと昇降路壁との間の間口方向の寸法があまり無い場合、着床検出スイッチが射出した光が乗場ドア取付金具のボルト等に反射して誤動作することがあった。
【0005】
また、かご室に外光が入光する展望仕様のエレベータの場合には、外光(特に夕方)が入光した際、その光を着床検出スイッチの光として判断して誤動作することもあった。
【0006】
本発明は上述した問題点に鑑みてなされたものであって、その目的は、光電式の着床検出器の誤動作を防止することにより検出精度の向上を図ったエレベータの着床検出装置を提供することにある。
【0007】
【課題を解決するための手段】
上述した目的を達成するために、第1の発明は、かご室に設けられたかごドア敷居の一端側に取り付けられ前記かご室の側方に向けて所定の動作域内の光を射出すると共に前記光を受光すると動作する光電式の着床検出器と、乗場ドア敷居の一端側に取り付けられ前記着床検出器が射出した光を前記着床検出器に向けて反射する着床検出部材と、前記着床検出部材が反射した前記着床検出器の光以外の前記動作域内の光が前記着床検出器に入光するのを阻止する誤動作防止カバーと、を備えたことを特徴とするエレベータの着床検出装置である。
【0008】
また、第2の発明は、乗場ドア敷居の下面に取り付けられかご室に向けて所定の動作域内の光を射出すると共に前記光を受光すると動作する光電式の着床検出器と、前記かご室に設けられたかごドア敷居の下面に取り付けられ前記着床検出器が射出した光を前記着床検出器に向けて反射する着床検出部材と、を備えたことを特徴とするエレベータの着床検出装置である。
【0009】
【発明の実施の形態】
以下、本発明の一実施形態を図面と共に詳述する。図1は本発明の第1の実施形態の着床検出装置を備えたエレベータの概略構造を示す斜視図、図2は第1の実施形態の着床検出装置のSWユニットのハウジングの外観斜視図、図3は第1の実施形態の着床検出装置の左側面図、図4は図3のX−X線断面図である。
【0010】
図1に示すエレベータはつるべ式のもので、昇降路内に垂直に設置された一対のガイドレール1,1に沿って昇降するかご室2と、昇降路の上部に固定配置された巻上機3と、この巻上機3に巻き掛けられ一端がかご室2に連結されると共に他端に釣り合いおもり(図示せず)が連結されたガイドロープ4とを備えている。
【0011】
かご室2の前面には出入口を開閉するかごドア5が設けられ、その前方且つ下方に設けられたかごドア敷居6の一端側の下面にはSWユニット7が取り付けられている。
【0012】
このSWユニット7は、かごドア敷居6に締結部材を介して固定されたハウジング9と、このハウジング9に上下方向に間隔をおいて取り付けられた複数個の光電式の着床検出スイッチ(着床検出器)10,10,・・・とから成っている。
【0013】
ハウジング9は金属板をプレス加工することにより形成されており、図2に示すように、前壁11と、その一側辺からかご室2側に向けて突出した側壁12と、前壁11の頂辺からかご室2側に向けて突出した頂壁13とを備えている。側壁12には、上下方向に一定間隔をおいて、複数個の舌片状のスイッチ支持片14,14,・・・が形成されている。このスイッチ支持片14は、側壁12の一部を側方に向けて突出するように切り起こしたもので、その上面には、着床検出スイッチ10が締結部材等を介して固定されている。なお、図3及び図4に示す符号15は着床検出スイッチ10を制御装置(図示せず)に接続する配線である。
【0014】
一方、各階床の出入口の前方且つ下方に設けられた乗場ドア敷居16の一端側には、ブラケット17が側方に突出するように取り付けられており、その内面には着床検出板18(着床検出部材)が取り付けられている。
【0015】
着床検出板18は横断面L字形のもので、その内側面の一部が着床検出スイッチ10のレンズ面10a(図4参照)と平行且つ対向するように配置されている。
【0016】
着床検出スイッチ10は、かご室2が着床時に減速した際に、その速度域で動作する光を射出し、着床検出板18が反射したその光をレンズ面10aで受光してかご室2が所定位置に達した否かを検出する。
【0017】
そして、ブラケット17の先端部には誤動作防止カバー19が取り付けられている。この誤動作防止カバー19は横断面L字形の板状のもので、着床検出スイッチ10の光を反射しにくいように表面にマット加工が施された黒色マット板により形成され、昇降方向に延びると共に一つの外側面が着床検出板18を挟んで着床検出スイッチ10のレンズ面10aと平行且つ対向するように配置されている。
【0018】
誤動作防止カバー19は、着床検出スイッチ10の動作域内の光であって着床検出板18で反射した光以外の光がレンズ面10aに入光しないようにするためのものであり、レンズ面10aとの距離A(図4参照)は、着床検出スイッチ10単体の実測データに基づいて設定されている。すなわち、距離Aは、それよりも小さくなると着床検出スイッチ10の光が誤動作防止カバー19で反射してレンズ面10aに入光する恐れが生じ、それよりも大きくなると乗場ドア取付金具等で反射した着床検出スイッチ10の光がレンズ面10aに入光する恐れが生じる大きさとなっている。
【0019】
また、誤動作防止カバー19の昇降方向の長さB(図3参照)は、かご室2が減速した際に着床検出スイッチ10が動作を開始する所定の速度域内において着床検出スイッチ10が射出する光を他の部品に当たって反射しないように確実に遮断できるように設定されている。
【0020】
このような誤動作防止カバー19を設けたことにより、着床検出スイッチ10が射出した光が着床検出板18以外の部分に当たって反射した光によって着床検出スイッチ10が誤動作するのを防止することができるため、着床検出精度が向上する。
【0021】
なお、誤動作防止カバー19は、エレベータの機種によるシャフト内機器(ガバナ、ガバナロープ、その振れ止め機構等)の取り付け位置の変化に影響を受けることなく取り付け可能であるように設計されている。
【0022】
次に、本発明の第2の実施形態を説明する。図5は本発明の第2の実施形態の着床検出装置を備えたエレベータの概略構造を示す斜視図、図6は第2の実施形態の着床検出装置のSWユニットのハウジング及び誤動作防止カバーの外観斜視図、図7は第2の実施形態の着床検出装置の左側面図、図8は図7のY−Y線断面図である。なお、以下の各実施形態において、第1の実施形態と同一又は類似の部分には同一の符号を付してあり、同一の部分については説明を省略してある。
【0023】
図5に示すように、本実施形態では、誤動作防止カバー19がかごドア敷居6の一端側に取り付けられている。図6に示すように、誤動作防止カバー19は、かごドア敷居6に取り付けられたブラケット20と、このブラケット20に取り付けられたカバー本体21とから成っている。
【0024】
ブラケット20は、ハウジング9の側壁12と平行に延びる逆L字形の垂直壁22と、その上端からかごドア敷居6に向けて水平に突出した頂壁23と、垂直壁22の一側辺から頂壁23と反対方向に突出した側壁24とから成っている。頂壁23は、ハウジング9の頂壁13の下面に重ね合わされた状態で、頂壁13,23に形成された長孔13a,23aを貫通する締結部材25(図7,図8参照)を介して頂壁13と共にかごドア敷居6に共締め固定される。
【0025】
カバー本体21は横断面略コの字形のもので、ハウジング9の前壁11と平行且つ垂直に延びる側壁26と、その一側辺から乗り場側に向けて突出すると共にハウジング9の側壁12と平行に延びる遮蔽壁27と、側壁26の他側辺から遮蔽壁27と同じ方向に突出した連結壁28とから成っている。
【0026】
ブラケット20とカバー本体21とは、ブラケット20の側壁24の外面がカバー本体21の側壁26の内面に当接すると共に、カバー本体21の連結壁28の内面がブラケット20の垂直壁22の外面に当接した状態で締結部材等により相互に固定されている。
【0027】
図7に示すように、着床検出板18は、乗場ドア敷居16の一端側の側面に締結部材29を介して固定されており、図8に示すように、カバー本体21の遮蔽壁27と着床検出スイッチ10との間の空間内に突出している。着床検出板18の反射面18aは着床検出スイッチ10のレンズ面10aと平行且つ対向するように配置されており、着床検出スイッチ10が射出した光をレンズ面10aに向けて反射する。
【0028】
なお、誤動作防止カバー19の遮蔽壁27とレンズ面10aとの距離Cは、第1の実施形態の距離A(図3参照)と同じく、着床検出スイッチ10が誤動作を起こしにくいように設定された大きさとなっている。そして、本実施形態では、誤動作防止カバー19とSWユニット7のハウジング9とが締結部材25にてかごドア敷居6に共締めされているため、距離Cを調整する際に誤動作防止カバー19とハウジング9との間の距離を調整するだけでよく、誤動作防止カバー19とハウジング9の位置をそれぞれ別個に調整する必要はないので、調整が容易である。
【0029】
また、誤動作防止カバー19の昇降方向の長さD(図7参照)については、かご室2の減速時に着床スイッチ10が射出する光だけでなく、展望仕様の場合の外光も確実に遮断できるように外光の入光角を考慮して設定されている。
【0030】
本実施形態の誤動作防止カバー19は、SWユニット7と共に常に昇降路内を昇降するので、展望仕様の場合に外光が入光しても、それが着床検出スイッチ10の光と判断されることはなく、着床検出スイッチ10の誤動作を防止することができる。
【0031】
次に、本発明の第3の実施形態を説明する。図9は本発明の第3の実施形態の着床検出装置を備えたエレベータの概略構造を示す斜視図である。
【0032】
本実施形態では、SWユニット7が乗場ドア敷居16の下面中央部に取り付けられている。各着床検出スイッチ10は、ハウジング9におけるかご室2側の面に設けられており、かご室2側に向けて光を射出する。
【0033】
また、着床検出板18は、SWユニット7に対向するようにかごドア敷居6の下面に垂直下方に延びるように取り付けられている。なお、着床検出板18は、作業者の巻き込みを防止するつま先保護板を兼ねている。
【0034】
このような構成によれば、着床検出板18周辺には着床検出スイッチ10の光を反射する部品が殆ど存在しないため、着床検出板18以外の部品からの反射光による着床検出スイッチ10の誤動作が生じにくい。
【0035】
また、展望仕様の場合には、通常、かご室の背面側から外光が入光するため、外光が着床検出スイッチ10に到達しにくく、外光による着床検出スイッチ10の誤動作が生じにくい。
【0036】
よって、第1、第2実施形態の誤動作防止カバー19を設けた場合と同等の効果を得ることができる。また、本実施形態では、着床検出スイッチ10が乗場ドア敷居16の下面中央部に取り付けられているため、メンテナンスの際、建屋側からの調整が容易である。さらに、本実施形態では、着床検出板18がつま先保護板を兼ねているため、エレベータの機種やシャフト構造に関係無く取り付け可能であると共に、据え付け性の向上やコスト低減が図れるという効果が得られる。
【0037】
なお、本実施形態では、つるべ式のエレベータについて説明したが、それ以外の種類のエレベータであっても本発明を適用できることはいうまでもない。
【0038】
【発明の効果】
以上のように、本発明によれば、着床検出スイッチが射出した光が着床検出板以外の部分に当たって反射した光や外光によって着床検出スイッチが誤動作するのを防止することができるため、着床検出精度が向上する。
【図面の簡単な説明】
【図1】本発明の第1の実施形態の着床検出装置を備えたエレベータの概略構造を示す斜視図
【図2】第1の実施形態の着床検出装置のSWユニットのハウジングの外観斜視図
【図3】第1の実施形態の着床検出装置の左側面図
【図4】図3のX−X線断面図
【図5】本発明の第2の実施形態の着床検出装置を備えたエレベータの概略構造を示す斜視図
【図6】第2の実施形態の着床検出装置のSWユニットのハウジング及び誤動作防止カバーの外観斜視図
【図7】第2の実施形態の着床検出装置の左側面図
【図8】図7のY−Y線断面図
【図9】本発明の第3の実施形態の着床検出装置を備えたエレベータの概略構造を示す斜視図
【符号の説明】
2 かご室
6 かごドア敷居
10 着床検出スイッチ(着床検出器)
16 乗場ドア敷居
18 着床検出板(着床検出部材)
19 誤動作防止カバー
[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a landing detection device for detecting whether a floor of a floor to be landed has reached a predetermined position when an elevator cab moves up and down.
[0002]
[Prior art]
The elevator is provided with a landing detection device that detects whether or not the elevator reaches a predetermined position on the floor to be landed when the cab moves up and down. This type of landing detection device includes a landing detection switch, which is a photoelectric landing detector attached to one end of a car door sill provided in a car room, and one end of a landing door sill on each floor. And a landing detection plate, which is a landing detection member attached to the vehicle.
[0003]
The landing detection switch emits light within an arbitrary operation area toward the side of the cab. On the other hand, the landing detection plate reflects light emitted from the landing detection switch toward the landing detection switch, and the length in the vertical direction is set according to the landing accuracy. The landing detection switch receives reflected light from the landing detection plate and detects whether the cab has reached a predetermined position.
[0004]
[Problems to be solved by the invention]
However, in the landing detection device as described above, if there is not much dimension in the frontage direction between the landing detection switch and the hoistway wall in the light operating range of the landing detection switch, the landing detection switch is In some cases, the emitted light is reflected on bolts or the like of the landing door mounting bracket and malfunctions.
[0005]
Also, in the case of an elevator with a view specification in which outside light enters the cab, when outside light (especially in the evening) enters, the light may be judged as the light of the landing detection switch and malfunction may occur. Was.
[0006]
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an elevator landing detection device that improves detection accuracy by preventing malfunction of a photoelectric landing detector. Is to do.
[0007]
[Means for Solving the Problems]
In order to achieve the above-described object, a first aspect of the present invention is to attach light to one end of a car door sill provided in a cab, and to emit light within a predetermined operation range toward the side of the cab, and A photoelectric landing detector that operates when light is received, and a landing detection member that is attached to one end of a landing door sill and reflects light emitted by the landing detector toward the landing detector, A malfunction prevention cover for preventing light in the operation area other than light of the landing detector reflected by the landing detection member from entering the landing detector. Is a landing detection device.
[0008]
Further, a second invention is a photoelectric landing detector attached to a lower surface of a landing door sill, which emits light within a predetermined operation range toward a cab and operates when receiving the light, A landing detection member attached to a lower surface of a car door sill provided on the lower surface and reflecting light emitted by the landing detector toward the landing detector. It is a detection device.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a schematic structure of an elevator including a landing detection device according to a first embodiment of the present invention, and FIG. 2 is an external perspective view of a housing of a SW unit of the landing detection device according to the first embodiment. FIG. 3 is a left side view of the landing detection device according to the first embodiment, and FIG. 4 is a sectional view taken along line XX of FIG.
[0010]
The elevator shown in FIG. 1 is a lift-type elevator, and has a cab 2 that moves up and down along a pair of guide rails 1 and 1 that are vertically installed in a hoistway, and a hoist that is fixedly arranged at the top of the hoistway. And a guide rope 4 wound around the hoisting machine 3, one end of which is connected to the car room 2 and the other end of which is connected to a counterweight (not shown).
[0011]
A car door 5 that opens and closes an entrance is provided on the front of the car room 2, and a SW unit 7 is attached to a lower surface on one end side of a car door sill 6 provided in front of and below the car door 5.
[0012]
The SW unit 7 includes a housing 9 fixed to the car door sill 6 via a fastening member, and a plurality of photoelectric landing detection switches (landing) mounted on the housing 9 at intervals in the vertical direction. Detectors) 10, 10,....
[0013]
The housing 9 is formed by pressing a metal plate, and as shown in FIG. 2, a front wall 11, a side wall 12 protruding from one side to the car room 2 side, And a top wall 13 protruding from the top side toward the cab 2 side. On the side wall 12, a plurality of tongue-shaped switch support pieces 14, 14,... Are formed at regular intervals in the vertical direction. The switch support piece 14 is formed by cutting and raising a part of the side wall 12 so as to protrude laterally, and the landing detection switch 10 is fixed to an upper surface thereof via a fastening member or the like. Reference numeral 15 shown in FIGS. 3 and 4 is wiring for connecting the landing detection switch 10 to a control device (not shown).
[0014]
On the other hand, at one end of a landing door sill 16 provided in front of and below the entrance of each floor, a bracket 17 is attached so as to protrude to the side. Floor detecting member).
[0015]
The landing detection plate 18 has an L-shaped cross section, and is arranged so that a part of the inner surface thereof is parallel to and opposed to the lens surface 10a of the landing detection switch 10 (see FIG. 4).
[0016]
When the cab 2 decelerates during landing, the landing detection switch 10 emits light that operates in that speed range, receives the light reflected by the landing detection plate 18 on the lens surface 10a, and receives the light. 2 is detected whether it has reached a predetermined position.
[0017]
A malfunction prevention cover 19 is attached to the tip of the bracket 17. The malfunction prevention cover 19 is a plate having an L-shaped cross section, and is formed of a black mat plate whose surface is matted so that the light of the landing detection switch 10 is hardly reflected. One outer surface is disposed so as to be parallel to and opposed to the lens surface 10a of the landing detection switch 10 with the landing detection plate 18 interposed therebetween.
[0018]
The malfunction prevention cover 19 is for preventing light other than light reflected by the landing detection plate 18 from entering the lens surface 10a, which is light within the operating range of the landing detection switch 10, and The distance A (see FIG. 4) from the landing detection switch 10a is set based on actual measurement data of the landing detection switch 10 alone. That is, if the distance A is smaller than that, the light of the landing detection switch 10 is reflected by the malfunction prevention cover 19 and may enter the lens surface 10a. If the distance A is larger than that, the light is reflected by the landing door mounting bracket or the like. The light from the landing detection switch 10 is likely to enter the lens surface 10a.
[0019]
The length B of the malfunction prevention cover 19 in the elevating direction (see FIG. 3) is determined by the landing detection switch 10 in a predetermined speed range where the landing detection switch 10 starts operating when the cab 2 is decelerated. It is set so as to be able to reliably block the emitted light from hitting other components and not being reflected.
[0020]
By providing such a malfunction prevention cover 19, it is possible to prevent the light emitted from the landing detection switch 10 from erroneously operating due to the light reflected on portions other than the landing detection plate 18. Therefore, the accuracy of landing detection is improved.
[0021]
The malfunction prevention cover 19 is designed so that it can be attached without being affected by a change in the attachment position of the in-shaft equipment (governor, governor rope, its steadying mechanism, etc.) depending on the elevator model.
[0022]
Next, a second embodiment of the present invention will be described. FIG. 5 is a perspective view showing a schematic structure of an elevator provided with a landing detection device according to a second embodiment of the present invention. FIG. 6 is a housing of a SW unit and a malfunction prevention cover of the landing detection device according to the second embodiment. 7 is a left side view of the landing detection device according to the second embodiment, and FIG. 8 is a sectional view taken along line YY of FIG. In the following embodiments, the same or similar portions as those in the first embodiment are denoted by the same reference numerals, and the description of the same portions is omitted.
[0023]
As shown in FIG. 5, in this embodiment, a malfunction prevention cover 19 is attached to one end of the car door sill 6. As shown in FIG. 6, the malfunction prevention cover 19 includes a bracket 20 attached to the car door sill 6 and a cover body 21 attached to the bracket 20.
[0024]
The bracket 20 includes an inverted L-shaped vertical wall 22 extending parallel to the side wall 12 of the housing 9, a top wall 23 projecting horizontally from an upper end thereof toward the car door sill 6, and a top wall 23 extending from one side of the vertical wall 22. It comprises a wall 23 and a side wall 24 projecting in the opposite direction. The top wall 23 is overlapped with the lower surface of the top wall 13 of the housing 9, via a fastening member 25 (see FIGS. 7 and 8) penetrating through long holes 13 a and 23 a formed in the top walls 13 and 23. Together with the top wall 13, they are fastened and fixed to the car door sill 6.
[0025]
The cover body 21 has a substantially U-shaped cross section. The side wall 26 extends parallel and perpendicular to the front wall 11 of the housing 9, and projects from one side to the landing side and is parallel to the side wall 12 of the housing 9. And a connecting wall 28 protruding from the other side of the side wall 26 in the same direction as the shielding wall 27.
[0026]
The outer surface of the side wall 24 of the bracket 20 contacts the inner surface of the side wall 26 of the cover body 21, and the inner surface of the connecting wall 28 of the cover body 21 contacts the outer surface of the vertical wall 22 of the bracket 20. In a state of being in contact with each other, they are fixed to each other by a fastening member or the like.
[0027]
As shown in FIG. 7, the landing detection plate 18 is fixed to a side surface on one end side of the hall door sill 16 via a fastening member 29. As shown in FIG. It protrudes into the space between the landing detection switch 10. The reflection surface 18a of the landing detection plate 18 is arranged so as to be parallel to and opposed to the lens surface 10a of the landing detection switch 10, and reflects the light emitted by the landing detection switch 10 toward the lens surface 10a.
[0028]
The distance C between the shielding wall 27 of the malfunction prevention cover 19 and the lens surface 10a is set such that the landing detection switch 10 is unlikely to malfunction, similarly to the distance A (see FIG. 3) of the first embodiment. Size. In this embodiment, since the malfunction prevention cover 19 and the housing 9 of the SW unit 7 are fastened together to the car door sill 6 by the fastening member 25, the malfunction prevention cover 19 and the housing 9 are adjusted when the distance C is adjusted. It is only necessary to adjust the distance between them, and it is not necessary to separately adjust the positions of the malfunction prevention cover 19 and the housing 9, so that the adjustment is easy.
[0029]
Regarding the length D (see FIG. 7) of the malfunction prevention cover 19 in the elevating direction, not only the light emitted from the landing switch 10 when the cab 2 is decelerated but also the external light in the case of the observing specification is surely blocked. The setting is made in consideration of the incident angle of the external light so as to be possible.
[0030]
Since the malfunction prevention cover 19 of the present embodiment always moves up and down in the hoistway together with the SW unit 7, even if external light enters in the case of the view specification, it is determined to be the light of the landing detection switch 10. Therefore, malfunction of the landing detection switch 10 can be prevented.
[0031]
Next, a third embodiment of the present invention will be described. FIG. 9 is a perspective view illustrating a schematic structure of an elevator including a landing detection device according to a third embodiment of the present invention.
[0032]
In the present embodiment, the SW unit 7 is attached to the center of the lower surface of the landing door sill 16. Each landing detection switch 10 is provided on the surface of the housing 9 on the cab 2 side, and emits light toward the cab 2 side.
[0033]
The landing detection plate 18 is attached to the lower surface of the car door sill 6 so as to extend vertically downward so as to face the SW unit 7. The landing detection plate 18 also serves as a toe protection plate for preventing the worker from getting caught.
[0034]
According to such a configuration, since there is almost no component that reflects the light of the landing detection switch 10 around the landing detection plate 18, the landing detection switch by reflected light from components other than the landing detection plate 18. 10 is less likely to malfunction.
[0035]
In addition, in the case of the outlook specification, since external light normally enters from the back side of the cab, the external light hardly reaches the landing detection switch 10 and the landing detection switch 10 malfunctions due to the external light. Hateful.
[0036]
Therefore, the same effect as the case where the malfunction prevention cover 19 of the first and second embodiments is provided can be obtained. In this embodiment, since the landing detection switch 10 is attached to the center of the lower surface of the hall door sill 16, adjustment from the building side during maintenance is easy. Further, in the present embodiment, since the landing detection plate 18 also serves as a toe protection plate, it can be attached regardless of the elevator model and the shaft structure, and the effect of improving the installation property and reducing the cost can be obtained. Can be
[0037]
Although the present embodiment has been described with reference to a lift-type elevator, it goes without saying that the present invention can be applied to other types of elevators.
[0038]
【The invention's effect】
As described above, according to the present invention, it is possible to prevent the landing detection switch from malfunctioning due to the light emitted from the landing detection switch hitting a portion other than the landing detection plate and reflected light or external light. In addition, the landing detection accuracy is improved.
[Brief description of the drawings]
FIG. 1 is a perspective view illustrating a schematic structure of an elevator including a landing detection device according to a first embodiment of the present invention. FIG. 2 is an external perspective view of a housing of a SW unit of the landing detection device according to the first embodiment. FIG. 3 is a left side view of the landing detection device according to the first embodiment. FIG. 4 is a cross-sectional view taken along the line XX of FIG. 3. FIG. 5 shows a landing detection device according to a second embodiment of the present invention. FIG. 6 is a perspective view showing a schematic structure of an elevator provided. FIG. 6 is an external perspective view of a housing of a SW unit and a malfunction prevention cover of the landing detection device of the second embodiment. FIG. 7 is a landing detection of the second embodiment. FIG. 8 is a cross-sectional view taken along line YY of FIG. 7. FIG. 9 is a perspective view showing a schematic structure of an elevator including a landing detection device according to a third embodiment of the present invention. ]
2 Car room 6 Car door sill 10 Landing detection switch (landing detector)
16 landing door threshold 18 landing detection board (landing detection member)
19 Malfunction prevention cover

Claims (5)

かご室に設けられたかごドア敷居の一端側に取り付けられ前記かご室の側方に向けて所定の動作域内の光を射出すると共に前記光を受光すると動作する光電式の着床検出器と、乗場ドア敷居の一端側に取り付けられ前記着床検出器が射出した光を前記着床検出器に向けて反射する着床検出部材と、前記着床検出部材が反射した前記着床検出器の光以外の前記動作域内の光が前記着床検出器に入光するのを阻止する誤動作防止カバーと、を備えたことを特徴とするエレベータの着床検出装置。A photoelectric landing detector that is attached to one end of a car door sill provided in the cab and emits light within a predetermined operation range toward the side of the cab and operates when receiving the light, A landing detection member attached to one end of a landing door sill and reflecting light emitted by the landing detector toward the landing detector, and light from the landing detector reflected by the landing detection member And a malfunction prevention cover for preventing light in the operation area other than the light from entering the landing detector. 前記誤動作防止カバーが乗場側における前記着床検出部材周辺の部位に設けられたことを特徴とする請求項1記載のエレベータの着床検出装置。The landing detection device for an elevator according to claim 1, wherein the malfunction prevention cover is provided at a site near the landing detection member on the landing side. 前記誤動作防止カバーが前記かご室側における前記着床検出器周辺の部位に設けられたことをことを特徴とする請求項1記載のエレベータの着床検出装置。The landing detection device for an elevator according to claim 1, wherein the malfunction prevention cover is provided on a portion around the landing detector on the car room side. 乗場ドア敷居の下面に取り付けられかご室に向けて所定の動作域内の光を射出すると共に前記光を受光すると動作する光電式の着床検出器と、前記かご室に設けられたかごドア敷居の下面に取り付けられ前記着床検出器が射出した光を前記着床検出器に向けて反射する着床検出部材と、を備えたことを特徴とするエレベータの着床検出装置。A photoelectric landing detector that is attached to the lower surface of the landing door sill, emits light within a predetermined operating range toward the cab, and operates when receiving the light, and a car door sill provided in the cab. A landing detection device for an elevator, comprising: a landing detection member attached to a lower surface and reflecting light emitted by the landing detector toward the landing detector. 前記着床検出部材が作業者の巻き込み防止機能を有することを特徴とする請求項4記載のエレベータの着床検出装置。The landing detection device for an elevator according to claim 4, wherein the landing detection member has a function of preventing a worker from getting caught.
JP2003016068A 2003-01-24 2003-01-24 Elevator landing detection device Expired - Fee Related JP4252323B2 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009220941A (en) * 2008-03-14 2009-10-01 Toshiba Elevator Co Ltd Elevator landing detection device
JP2010120738A (en) * 2008-11-19 2010-06-03 Hitachi Building Systems Co Ltd Car position detection device for elevator
CN102030235A (en) * 2009-09-24 2011-04-27 东芝电梯株式会社 Device for preventing misdetection of elevator landing floor
JP2014073890A (en) * 2012-10-03 2014-04-24 Toshiba Elevator Co Ltd Landing detection device for elevator
CN104828684A (en) * 2014-02-12 2015-08-12 株式会社日立制作所 Elevator equipment
WO2020035936A1 (en) * 2018-08-17 2020-02-20 三菱電機株式会社 Elevator and repair method for same

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JP7243479B2 (en) 2019-06-24 2023-03-22 ブラザー工業株式会社 A server, a computer program for a server, and a computer program for a terminal device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009220941A (en) * 2008-03-14 2009-10-01 Toshiba Elevator Co Ltd Elevator landing detection device
JP2010120738A (en) * 2008-11-19 2010-06-03 Hitachi Building Systems Co Ltd Car position detection device for elevator
CN102030235A (en) * 2009-09-24 2011-04-27 东芝电梯株式会社 Device for preventing misdetection of elevator landing floor
JP2014073890A (en) * 2012-10-03 2014-04-24 Toshiba Elevator Co Ltd Landing detection device for elevator
CN104828684A (en) * 2014-02-12 2015-08-12 株式会社日立制作所 Elevator equipment
WO2020035936A1 (en) * 2018-08-17 2020-02-20 三菱電機株式会社 Elevator and repair method for same
JPWO2020035936A1 (en) * 2018-08-17 2021-01-07 三菱電機株式会社 Elevator and its repair method

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