JP4172457B2 - Elevator door safety device - Google Patents

Elevator door safety device Download PDF

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JP4172457B2
JP4172457B2 JP2005048008A JP2005048008A JP4172457B2 JP 4172457 B2 JP4172457 B2 JP 4172457B2 JP 2005048008 A JP2005048008 A JP 2005048008A JP 2005048008 A JP2005048008 A JP 2005048008A JP 4172457 B2 JP4172457 B2 JP 4172457B2
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door
car
landing
car door
sensor bar
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JP2006232455A (en
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幸児 津田
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Description

本発明は、エレベータドアの安全装置に関するものである。   The present invention relates to an elevator door safety device.

従来、かごドア２とこれに従動して開閉する乗場ドア３とを備えたエレベータドアにおいて、図５に示すように、乗りかご４に設けた投光器４０と戸当たり７に設けた受光器４１とで障害物を検知して、閉動作の際に、かごドア２の移動空間Ｄ内に人が挟まれるのを防止するようにしたものが知られている（例えば、特許文献１参照）。   Conventionally, in an elevator door provided with a car door 2 and a landing door 3 that opens and closes in accordance with the car door, as shown in FIG. 5, a light projector 40 provided on the car 4 and a light receiver 41 provided on the door stop 7 It is known that an obstacle is detected and a person is prevented from being caught in the moving space D of the car door 2 during the closing operation (see, for example, Patent Document 1).

しかしながら上記特許文献１に示される従来例にあっては、かごドア２側に投光器４０を固定しているため、かごドア２の移動空間Ｄでしか検知ができない。つまり乗場５側において、乗場ドア３の移動空間Ｅ内を検知できないため、かごドア２が閉じる際に乗りかご４に乗り込もうとしたり、或いは乗りかご４に乗り込んでいる最中に乗場ドア３が閉じると、乗場ドア３に人或いは障害物が挟まれる恐れがある。
特開平１０−２９７８５１号公報 However, in the conventional example shown in the above-mentioned patent document 1, since the projector 40 is fixed to the car door 2 side, it can be detected only in the moving space D of the car door 2. In other words, since the inside of the moving space E of the landing door 3 cannot be detected on the landing 5 side, the landing door 3 closes while trying to get into the car 4 when the car door 2 closes or while getting into the car 4. There is a risk that people or obstacles may be caught in the landing door 3.
Japanese Patent Laid-Open No. 10-297851

本発明は上記の従来の問題点に鑑みて発明したものであって、閉じる際のかごドア側と乗場ドア側との双方の障害物検知が可能となり、安全性の高いエレベータドアの安全装置を提供することを課題とするものである。   The present invention has been invented in view of the above-described conventional problems, and it is possible to detect obstacles on both the car door side and the landing door side when closing, and to provide a highly safe elevator door safety device. The issue is to provide.

前記課題を解決するために本発明にあっては、かごドア２とこれに並走して開閉する乗場ドア３とからなるエレベータドア１の閉動作の際に、かごドア２及び乗場ドア３の移動空間内に人が挟まれるのを防止するための安全装置であって、上記かごドア２の戸当たり７側の上端部に、光電センサ８をかごドア２の走行平面内から乗場ドア３側に向けて突出可能に取り付けると共に、かごドア２の開時に光電センサ８をかごドア２の走行平面内から乗場ドア３側に飛び出させることで、かごドア２及び乗場ドア３の各移動空間内を広範囲で検知可能とする突出状態とし、かごドア２の閉時に光電センサ８をかごドア２の走行平面内に収納する収納状態としてなることを特徴としている。   In order to solve the above-mentioned problems, in the present invention, when the elevator door 1 including the car door 2 and the landing door 3 that opens and closes in parallel with the car door 2 is closed, A safety device for preventing a person from being trapped in a moving space, wherein a photoelectric sensor 8 is placed on the side of the door 3 from the traveling plane of the car door 2 at the upper end of the door 2 of the car door 2. And the photoelectric sensor 8 is projected from the traveling plane of the car door 2 to the landing door 3 side when the car door 2 is opened, so that the inside of each moving space of the car door 2 and the landing door 3 can be moved. The projecting state is such that it can be detected in a wide range, and when the car door 2 is closed, the photoelectric sensor 8 is housed in a traveling plane of the car door 2.

このような構成とすることで、エレベータに乗客が乗り込む際に、かごドア２が閉動作を開始した場合でも、光電センサ８がかごドア２から乗場ドア３側にせり出すようにして、広範囲をセンシングするので、１つの光電センサ８を用いて、かごドア２の移動空間内の人や障害物のみみならず、乗場ドア３の移動空間内の人や障害物も同時に検知できるようになる。   By adopting such a configuration, even when the car door 2 starts to close when a passenger enters the elevator, the photoelectric sensor 8 protrudes from the car door 2 to the landing door 3 side to sense a wide range. Therefore, by using one photoelectric sensor 8, not only a person or an obstacle in the moving space of the car door 2 but also a person or an obstacle in the moving space of the landing door 3 can be detected at the same time.

また上記光電センサ８は、基端部がかごドア２の上端部に回転自在に固定され、先端部が自由端部とされたセンサーバー８Ａで構成され、上記センサーバー８Ａをかごドア２の走行平面内から乗場ドア３側に飛び出す方向にバネ付勢するバネ機構により、センサーバー８Ａの突出状態が保持され、かごドア２の戸当たり７に収納手段１５が設けられ、この収納手段１５は、かごドア２が閉じる直前にセンサーバー８Ａに当たってセンサーバー８Ａをバネ機構のバネ力に抗してかごドア２の走行平面内に押し込む押込みリブ１５Ａからなるので、バネ機構と押込みリブ１５Ａとを組み合わせた簡易な構造で、センサーバー８Ａの突出及び収納が可能となり、低コストで安全性の高いエレベータドア１を実現できるようになる。 The photoelectric sensor 8 includes a sensor bar 8A whose base end is rotatably fixed to the upper end of the car door 2 and whose front end is a free end. The sensor bar 8A travels on the car door 2. The protruding state of the sensor bar 8A is maintained by a spring mechanism that springs in the direction of jumping out from the plane to the landing door 3 side, and the storage means 15 is provided at the door stop 7 of the car door 2, and the storage means 15 is Since it comprises a pushing rib 15A that hits the sensor bar 8A just before the car door 2 closes and pushes the sensor bar 8A into the traveling plane of the car door 2 against the spring force of the spring mechanism , the spring mechanism and the pushing rib 15A are combined. With a simple structure, the sensor bar 8A can be protruded and stored, and the elevator door 1 can be realized at low cost and high safety.

本発明は、かごドアの戸当たり側の上端部に、光電センサをかごドアの走行平面内から乗場ドア側に向けて突出可能に取り付けた簡易な構造でありながら、閉じる際のかごドア側と乗場ドア側との双方の障害物検知が可能となり、かごドアのみならず乗場ドアに人或いは障害物が挟まれる恐れが一切なく、安全性が大幅に向上するものである。   The present invention has a simple structure in which a photoelectric sensor is attached to the upper end of the door side of the car door so as to protrude from the traveling plane of the car door toward the landing door side. Obstacles on both sides of the landing door can be detected, and there is no possibility of people or obstacles being caught not only in the car door but also in the landing door, and the safety is greatly improved.

以下、本発明を添付図面に示す実施形態に基いて説明する。   Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

本実施形態のエレベータドア１は、かごドア２と乗場ドア３との２重扉で構成される。図４中の４は乗りかご、５は乗場、６は油圧ジャッキ、１０はかごドア用戸袋、１１は乗場ドア用戸袋、１２は昇降路、１３は乗りかご支持部材である。   The elevator door 1 according to this embodiment includes a double door including a car door 2 and a landing door 3. 4, 4 is a passenger car, 5 is a landing, 6 is a hydraulic jack, 10 is a door for a car door, 11 is a door for a landing door, 12 is a hoistway, and 13 is a car support member.

かごドア２は、図１に示すように、かごフェイスドア２Ａと、かごフェイスドア２Ａよりも約１／２の速度で開閉するかごスロードア２Ｂとの２枚ドアからなり、扉連動機構（図示せず）によって互いに連動して開閉動作を行なう。乗場ドア３は、かごフェイスドア２Ａに従動する乗場フェイスドア３Ａと、乗場フェイスドア３Ａに従動し且つ乗場フェイスドア３Ａよりも約１／２の速度で開閉するする乗場スロードア３Ｂとの２枚ドアからなり、別の扉連動機構（図示せず）によって互いに連動して開閉動作を行なう。なお図１中の２０はかごフェイスドア２Ａを駆動するモータである。乗りかご４が指定階に着床停止した段階でかごフェイスドア２Ａと乗場フェイスドア３Ａとが連結機構３０によって互いに連結された状態となり、かごフェイスドア２Ａが開くとこれに連動してかごスロードア２Ｂが開くようになり、またこのとき、かごフェイスドア２Ａが開くとこれに連動して乗場フェイスドア３Ａが開くようになり、この乗場フェイスドア３Ａに従動して乗場スロードア３Ｂが開くようになる。つまり、１枚のかごフェイスドア２Ａのみをモータ２０で開閉させるだけで、他の３枚のドア（かごスロードア２Ｂ、乗場フェイスドア３Ａ、乗場スロードア３Ｂ）が各々連動して開閉する仕組みとなっている。なお、エレベータドア１を閉じた状態で乗りかご４が指定階から僅かに上昇又は下降した段階でかごフェイスドア２Ａと乗場フェイスドア３Ａとの連結状態は解除される。   As shown in FIG. 1, the car door 2 is composed of two doors, a car face door 2A and a car throw door 2B that opens and closes at a speed about half that of the car face door 2A. To perform opening and closing operations in conjunction with each other. The landing door 3 has two doors: a landing face door 3A that follows the car face door 2A, and a landing throw door 3B that follows the landing face door 3A and opens and closes at about 1/2 the speed of the landing face door 3A. Opening and closing operations are performed in conjunction with each other by another door interlocking mechanism (not shown). In FIG. 1, reference numeral 20 denotes a motor for driving the car face door 2A. When the car 4 stops landing on the designated floor, the car face door 2A and the landing face door 3A are connected to each other by the connecting mechanism 30. When the car face door 2A is opened, the car throw door 2B is interlocked with this. At this time, when the car face door 2A is opened, the hall face door 3A is opened in conjunction with the car face door 2A, and the hall throw door 3B is opened by being driven by the hall face door 3A. That is, only one car face door 2A is opened and closed by the motor 20, and the other three doors (the car throw door 2B, the landing face door 3A, and the landing throw door 3B) are opened and closed in conjunction with each other. Yes. Note that the connection state between the car face door 2A and the landing face door 3A is released when the car 4 is slightly raised or lowered from the designated floor with the elevator door 1 closed.

次に、安全装置は、エレベータドア１の閉動作の際に、かごフェイスドア２Ａ及び乗場フェイスドア３Ａの移動空間内に人（或いは障害物）が挟まれるのを防止するためのものであり、本例では図２に示すように、かごフェイスドア２Ａの戸当たり７側の前縁部に取り付けられる光電センサ８で構成されている。   Next, the safety device is for preventing a person (or an obstacle) from being caught in the moving space of the car face door 2A and the landing face door 3A when the elevator door 1 is closed. In this example, as shown in FIG. 2, it is comprised with the photoelectric sensor 8 attached to the front edge part of the door stop 7 side of the car face door 2A.

ここでは、投光素子と受光素子とを複数組備えたセンサーバー８Ａで構成されている。このセンサーバー８Ａは、発光した光の反射を自ら受光して検知するタイプのものであり、図２（ａ）に示すように、センサーバー８Ａの回転軸２１がかごフェイスドア２Ａの前縁部の上端面のセンター位置に回転軸２１回りに回動可能に固定されている。センサーバー８Ａの先端部は自由端部とされ、且つこの自由端部がかごフェイスドア２Ａの走行平面内から乗場フェイスドア３Ａ側に向けて飛び出し可能とされる。本例では、センサーバー８Ａの先端部がかごフェイスドア２Ａの上ランナー２３及び乗場フェイスドア３Ａの上ランナー２４とそれぞれ干渉しない範囲で、図１の矢印Ｂ方向に往復回転自在となっている。そして、かごフェイスドア２Ａの走行平面内から飛び出させて上部からかごフェイスドア２Ａ及び乗場フェイスドア３Ａの移動空間内に向けて光電ビームを走査することにより、かごフェイスドア２Ａの閉じ動作に従って、かごフェイスドア２Ａ及び乗場フェイスドア３Ａの移動空間内をそれぞれ広範囲で検知できるようになっている。   Here, the sensor bar 8A includes a plurality of sets of light projecting elements and light receiving elements. The sensor bar 8A is of a type that receives and detects the reflection of the emitted light by itself, and as shown in FIG. 2A, the rotating shaft 21 of the sensor bar 8A has a front edge portion of the car face door 2A. Is fixed to the center position of the upper end surface of the shaft so as to be rotatable around the rotation shaft 21. The front end of the sensor bar 8A is a free end, and the free end can jump out from the traveling plane of the car face door 2A toward the landing face door 3A. In this example, the sensor bar 8A can freely reciprocate in the direction indicated by the arrow B in FIG. 1 as long as the tip of the sensor bar 8A does not interfere with the upper runner 23 of the car face door 2A and the upper runner 24 of the landing face door 3A. Then, by jumping out of the traveling plane of the car face door 2A and scanning the photoelectric beam from the upper part into the moving space of the car face door 2A and the landing face door 3A, the car face door 2A is closed in accordance with the closing operation of the car face door 2A. The inside of the moving space of the face door 2A and the landing face door 3A can be detected in a wide range.

なお、センサーバー８Ａの最大突出長は、乗場フェイスドア３Ａの上端部までは達しない程度とされ、これによりセンサーバー８Ａは乗場フェイスドア３Ａの上端部と干渉しない範囲で、かごフェイスドア２Ａと乗場フェイスドア３Ａとの間の隙間を広い範囲でセンシングできるようにしている。このとき、センサーバー８Ａに取り付けられる投光素子に投光角度を持たせるようにすれば、より広範囲での検知が可能となる。また光電センサ８は上記構成に限らず、投光器と受光器とを組みあわせたもの、或いは、投光器と反射板とを組みあわせたもの等であってもよい。   Note that the maximum protrusion length of the sensor bar 8A is such that it does not reach the upper end of the landing face door 3A, so that the sensor bar 8A does not interfere with the upper end of the landing face door 3A. The gap with the landing face door 3A can be sensed in a wide range. At this time, if the light projecting element attached to the sensor bar 8A has a light projection angle, detection in a wider range is possible. The photoelectric sensor 8 is not limited to the above configuration, and may be a combination of a projector and a light receiver, or a combination of a projector and a reflector.

また本例では、上記かごフェイスドア２Ａの開時に、センサーバー８Ａをかごフェイスドア２Ａの走行平面内から乗場フェイスドア３Ａ側に飛び出させるための突出手段を備えている。本例の突出手段は、センサーバー８Ａを走行平面内から飛び出す方向に向かってバネ付勢するバネ機構（図示せず）で構成されている。バネ機構は、例えばセンサーバー８Ａの回転軸２１に巻き付けられる捻りバネからなり、後述の押込みリブ１５Ａで圧縮されたときにはセンサーバー８Ａをかごフェイスドア２Ａの走行平面内に収納する方向に回転可能とし、開放状態ではセンサーバー８Ａを乗場フェイスドア３Ａ側に約９０°の角度で飛び出させ、かごフェイスドア２Ａの閉動作に併せてかごフェイスドア２Ａの移動空間内を検知するものである。なおバネ機構の形状、種類は特に限定されない。   Further, in this example, there is provided projecting means for causing the sensor bar 8A to jump out from the traveling plane of the car face door 2A toward the landing face door 3A when the car face door 2A is opened. The projecting means of this example is configured by a spring mechanism (not shown) that biases the sensor bar 8A in a direction that protrudes from the traveling plane. The spring mechanism is composed of, for example, a torsion spring wound around the rotation shaft 21 of the sensor bar 8A, and when compressed by a push rib 15A described later, the sensor bar 8A can be rotated in a direction to be accommodated in the traveling plane of the car face door 2A. In the open state, the sensor bar 8A is projected to the landing face door 3A side at an angle of about 90 °, and the inside of the moving space of the car face door 2A is detected in conjunction with the closing operation of the car face door 2A. The shape and type of the spring mechanism are not particularly limited.

さらに上記かごフェイスドア２Ａの閉時に、センサーバー８Ａをかごフェイスドア２Ａの走行平面内（かごフェイスドア２Ａと平行な面内）に収納するための収納手段１５を備えている。本例の収納手段１５は、図３に示すように、かごフェイスドア２Ａの戸当たり７に設けられて、かごフェイスドア２Ａが閉じる直前にセンサーバー８Ａに当たってセンサーバー８Ａをバネ機構のバネ力に抗してかごフェイスドア２Ａの走行平面内に押し込む押込みリブ１５Ａで構成されている。この押込みリブ１５Ａは、戸当たり７の乗場フェイスドア３Ａ側の前端部から、かごフェイスドア２Ａの走行平面と平行にリブ状に突出している。押込みリブ１５Ａのセンサーバー８Ａが当たる先端面はＲ形状部分２２に形成され、かごフェイスドア２Ａの閉じ方向への移動に伴いＲ形状部分２２でセンサーバー８Ａを滑らかに回動させるようになっている。ここで図３（ａ）（ｂ）はかごフェイスドア２Ａの閉時にセンサーバー８Ａがかごフェイスドア２Ａの走行平面内に収納された状態であり、図３（ｃ）〜図３（ｅ）はかごフェイスドア２Ａが開くにつれてバネ機構によりセンサーバー８Ａが走行平面から突出する状態を示している。また、かごフェイスドア２Ａの閉じ動作時において、センサーバー８Ａが収納手段１５に当たった時点（例えば、図３（ｃ）の時点）で作動するスイッチ等を設け、このスイッチ等によりセンサーバー８Ａの検知を停止するようにしてもよい。   Furthermore, a storage means 15 is provided for storing the sensor bar 8A in the traveling plane of the car face door 2A (in a plane parallel to the car face door 2A) when the car face door 2A is closed. As shown in FIG. 3, the storage means 15 of the present example is provided at the door stop 7 of the car face door 2A, and hits the sensor bar 8A just before the car face door 2A closes to make the sensor bar 8A spring force of the spring mechanism. It consists of a pushing rib 15A that pushes against the running plane of the car face door 2A. The pushing rib 15A protrudes in a rib shape from the front end portion of the door face door 3A side of the door stop 7 in parallel with the traveling plane of the car face door 2A. The front end surface of the pushing rib 15A against which the sensor bar 8A hits is formed in the R-shaped portion 22, and the sensor bar 8A is smoothly rotated by the R-shaped portion 22 as the car face door 2A moves in the closing direction. Yes. Here, FIGS. 3A and 3B show a state in which the sensor bar 8A is housed in the traveling plane of the car face door 2A when the car face door 2A is closed, and FIGS. As the car face door 2A is opened, the sensor bar 8A is projected from the traveling plane by a spring mechanism. Further, when the car face door 2A is closed, a switch or the like that is activated when the sensor bar 8A hits the storage means 15 (for example, at the time of FIG. 3C) is provided. The detection may be stopped.

しかして、エレベータに乗客が乗り込む際に、かごフェイスドア２Ａが閉動作を開始した場合でも、図２（ａ）のようにセンサーバー８Ａがかごフェイスドア２Ａから乗場フェイスドア３Ａ側にせり出すようにして、広範囲をセンシングしているので、かごフェイスドア２Ａの移動空間内の人や障害物のみみならず、乗場フェイスドア３Ａの移動空間内の人や障害物も同時に検知できる。従って、かごドア２のみならず乗場フェイスドア３Ａに人或いは障害物が挟まれる恐れが一切なく、そのうえ、人とエレベータドア１とが接触する直前にこれを検知することで、人とエレベータドア１と衝撃を極力低減できるものとなり、安全性が大幅に向上する。   Thus, when the passenger enters the elevator, even if the car face door 2A starts to close, the sensor bar 8A protrudes from the car face door 2A toward the landing face door 3A as shown in FIG. Since a wide range is sensed, not only people and obstacles in the moving space of the car face door 2A but also people and obstacles in the moving space of the landing face door 3A can be detected simultaneously. Accordingly, there is no possibility that a person or an obstacle is caught not only in the car door 2 but also in the landing face door 3A. In addition, by detecting this immediately before the person and the elevator door 1 come into contact, the person and the elevator door 1 The impact can be reduced as much as possible, and safety is greatly improved.

また本例では、かごフェイスドア２Ａの前端縁の上端部にセンサーバー８Ａを取り付け、下向きにビーム走査を行なうので、かごフェイスドア２Ａの閉じ動作に伴い、かごフェイスドア２Ａの移動空間内を上から平面視でくまなく検知できるようになる。さらに、センサーバー８Ａに設置される複数の投光素子に所定の投光角度を持たせる。例えば図２（ａ）のように、センサーバー８Ａの先端側の投光素子Ａ１を乗場フェイスドア３Ａの移動空間内に向くように斜め向きに設置し、センサーバー８Ａの中央側の投光素子Ａ２をかごフェイスドア２Ａと乗場フェイスドア３Ａとの隙間に向かうようにほぼ真下向きに設置し、センサーバー８Ａの根元側の投光素子Ａ３をかごフェイスドア２Ａの移動空間内に向くように斜め向きに設置する。これにより、１本のセンサーバー８Ａでより広がりを持たせることができ、より広範囲での検知が可能となる。そのうえセンサーバー８Ａを回転自在に取り付けたので、１つのセンサーバー８Ａのみを用いて広い範囲のセンシングが可能となり、光電センサ８の数を減らして低コスト化を図ることができる利点もある。   In this example, since the sensor bar 8A is attached to the upper end of the front edge of the car face door 2A and beam scanning is performed downward, the car face door 2A is moved upward in the moving space of the car face door 2A. It will be possible to detect all over the plane view. Furthermore, a predetermined light projection angle is given to the plurality of light projecting elements installed on the sensor bar 8A. For example, as shown in FIG. 2A, the light projecting element A1 on the tip side of the sensor bar 8A is installed obliquely so as to face the moving space of the landing face door 3A, and the light projecting element on the center side of the sensor bar 8A. A2 is installed almost downward so as to face the gap between the car face door 2A and the landing face door 3A, and the light projecting element A3 on the base side of the sensor bar 8A is inclined so as to face the moving space of the car face door 2A. Install in the direction. As a result, the single sensor bar 8A can be further expanded, and detection in a wider range is possible. In addition, since the sensor bar 8A is rotatably attached, a wide range of sensing is possible using only one sensor bar 8A, and there is an advantage that the number of photoelectric sensors 8 can be reduced and the cost can be reduced.

なお前記実施形態では、押込みリブ１５Ａとバネ機構とを用いてセンサーバー８Ａを回転させるようにしたが、これに代えて、パルスモータ等を用いて回転させることも可能である。   In the above-described embodiment, the sensor bar 8A is rotated using the push rib 15A and the spring mechanism. However, instead of this, the sensor bar 8A can be rotated using a pulse motor or the like.

前記実施形態では、かごドア２及び乗場ドア３をそれぞれ２枚ドアとした場合を説明したが、これに限らず、それぞれ１枚ドア、或いは３枚以上のドアであってもよい。   In the above-described embodiment, the case where the car door 2 and the landing door 3 are each two doors has been described. However, the present invention is not limited to this, and one car door or three or more doors may be used.

本発明の一実施形態の平面図である。It is a top view of one embodiment of the present invention. （ａ）は同上のセンサーバーを備えたかごドアの斜視図、（ｂ）はセンサーバーの検知範囲の説明図である。(A) is a perspective view of the car door provided with the sensor bar same as the above, (b) is an explanatory view of the detection range of the sensor bar. （ａ）（ｂ）はかごドアの閉時のセンサーバーの位置説明図、（ｃ）〜（ｅ）はかごドアの開時のセンサーバーの位置説明図である。(A) and (b) are position explanatory views of the sensor bar when the car door is closed, and (c) to (e) are position explanatory views of the sensor bar when the car door is opened. 同上のエレベータの昇降路の平面図である。It is a top view of the hoistway of an elevator same as the above. 従来例の説明図である。It is explanatory drawing of a prior art example.

符号の説明Explanation of symbols

１ エレベータドア
２ かごドア
３ 乗場ドア
７ 戸当たり
８ 光電センザ
８Ａ センサーバー
１５ 収納手段
１５Ａ 押込みリブ DESCRIPTION OF SYMBOLS 1 Elevator door 2 Car door 3 Landing door 7 Per door 8 Photoelectric sensor 8A Sensor bar 15 Storage means 15A Pushing rib

Claims (1)

かごドアとこれに並走して開閉する乗場ドアとからなるエレベータドアの閉動作の際に、かごドア及び乗場ドアの移動空間内に人が挟まれるのを防止するための安全装置であって、上記かごドアの戸当たり側の上端部に、光電センサをかごドアの走行平面内から乗場ドア側に向けて突出可能に取り付けると共に、かごドアの開時に光電センサをかごドアの走行平面内から乗場ドア側に飛び出させることで、かごドア及び乗場ドアの各移動空間内を広範囲で検知可能とする突出状態とし、かごドアの閉時に光電センサをかごドアの走行平面内に収納する収納状態とし、前記光電センサは、基端部がかごドアの上端部に回転自在に固定され、先端部が自由端部とされたセンサーバーで構成され、上記センサーバーをかごドアの走行平面内から乗場ドア側に飛び出す方向にバネ付勢するバネ機構により、センサーバーの突出状態が保持され、かごドアの戸当たりに収納手段が設けられ、この収納手段は、かごドアが閉じる直前にセンサーバーに当たってセンサーバーをバネ機構のバネ力に抗してかごドアの走行平面内に押し込む押込みリブからなることを特徴とするエレベータドアの安全装置。 A safety device for preventing a person from being caught in the moving space of the car door and the landing door when the elevator door composed of the car door and the landing door that opens and closes in parallel with the car door. The photoelectric sensor is attached to the upper end of the door side of the car door so that it can protrude from the running plane of the car door toward the landing door side, and the photoelectric sensor is installed from the running plane of the car door when the car door is opened. By projecting to the landing door side, the car door and the moving space of the landing door can be detected in a wide range, and the photoelectric sensor is stored in the traveling plane of the car door when the car door is closed. The photoelectric sensor is composed of a sensor bar whose base end is rotatably fixed to the upper end of the car door and whose front end is a free end, and the sensor bar is a landing from within the traveling plane of the car door. The protruding state of the sensor bar is maintained by a spring mechanism that urges the spring in the direction of projecting to the door side, and storage means is provided at the door of the car door. This storage means hits the sensor bar just before the car door closes. safety device for an elevator door, characterized in that it consists of pushing rib to push the server against the spring force of the spring mechanism in the traveling plane of the car door.
JP2005048008A 2005-02-23 2005-02-23 Elevator door safety device Expired - Fee Related JP4172457B2 (en)

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JP2005048008A JP4172457B2 (en) 2005-02-23 2005-02-23 Elevator door safety device

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JP4172457B2 true JP4172457B2 (en) 2008-10-29

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Publication number Priority date Publication date Assignee Title
CN105905770A (en) * 2016-06-30 2016-08-31 爱默生电梯有限公司 Elevator door achieving comprehensive protection
WO2019224926A1 (en) * 2018-05-22 2019-11-28 三菱電機株式会社 Voyeur photographing prevention device for elevator

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