JPH0398983A - Safety device for elevator - Google Patents
Safety device for elevatorInfo
- Publication number
- JPH0398983A JPH0398983A JP23290189A JP23290189A JPH0398983A JP H0398983 A JPH0398983 A JP H0398983A JP 23290189 A JP23290189 A JP 23290189A JP 23290189 A JP23290189 A JP 23290189A JP H0398983 A JPH0398983 A JP H0398983A
- Authority
- JP
- Japan
- Prior art keywords
- door
- cage
- sensor
- smoke
- safety device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000779 smoke Substances 0.000 claims abstract description 24
- 230000003287 optical effect Effects 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 6
- 230000001174 ascending effect Effects 0.000 abstract 1
- 230000009545 invasion Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 206010027175 memory impairment Diseases 0.000 description 1
Landscapes
- Elevator Door Apparatuses (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、光センサによるドア安全装置を付加したエレ
ベータの安全装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an elevator safety device that includes a door safety device using an optical sensor.
（従来の技術）
通常、エレベータには、かごのドア安全装置として，接
触により動作する機械式セフテイを設けているが、これ
以外に光センサを取付け、第３図のドア制御回路に示す
ようにこの光センサｌとドア開指令リレー２を制御電源
ＰＮ間に直列に接続し，光センサ１が物体を検知したと
きかごのドアを再開動作させるようにして，非接触で物
体を検知するようにしたドア安全装置を付加的に設けて
いるものが多い。(Prior art) Normally, elevators are equipped with a mechanical safety device that operates by contact as a car door safety device, but in addition to this, an optical sensor is installed, as shown in the door control circuit in Figure 3. The optical sensor 1 and the door open command relay 2 are connected in series between the control power source PN, and when the optical sensor 1 detects an object, the car door is restarted, so that the object can be detected without contact. Many are equipped with an additional door safety device.
（発明が解決しようとする課題）
ところで、建物の内部で火災が発生した場合、非常階段
の利用以外に止むを得ずエレベータを利用して避難する
ことも多い。(Problem to be Solved by the Invention) By the way, when a fire breaks out inside a building, it is often necessary to evacuate by using an elevator in addition to using the emergency stairs.
しかしながら、このエレベータを利用して避難する場合
、建物内に充満した煙はかご内にも侵入するから、かご
に乗った乗客がドア閉ボタンを押してドアを閉めようと
しても、光センサが煙によって誤動作し、ドアが開閉動
作を繰返す。However, when evacuating using this elevator, the smoke that fills the building will also enter the car, so even if a passenger in the car tries to close the door by pressing the door close button, the light sensor will be blocked by the smoke. The door malfunctions and repeatedly opens and closes.
この場合，時限機能を備えた場合には，ドアの開閉動作
を一定時限繰返してからドアは閉じるが，時限機能を備
えていない場合には、いつまでもドアの開閉を繰返して
おり、緊急時であるにもかかわらず時間を無駄にしてし
まう。In this case, if the door is equipped with a timer function, the door will open and close after a certain period of time, and then the door will be closed. However, if the door is not equipped with a timer function, the door will continue to open and close over and over again, which is an emergency situation. However, you end up wasting your time.
このため、乗客は、エレベータを断念し、再び非常口を
探して避難しなければならなくなり、煙に巻かれて最悪
の場合死亡する事態が生じる。As a result, passengers are forced to abandon the elevator and search for an emergency exit again to evacuate, leading to a situation in which they are engulfed in smoke and, in the worst case, die.
一方，火災発生時に、建物側から火災報知と同時に光セ
ンサによるドアの安全装置を制御回路から切離す方式を
採用したものもあるが，近年、いたずらによって光セン
サによるドア安全装置を人為的に誤動作させるケースも
あり，この場合にも建物の管理上光センサによるドア安
全装置を切離さなければならないから，建物側から人間
を介して行う光センサによるドアの安全装置の切離しは
、煩わしいだけでなく失念することもある。On the other hand, in the event of a fire, some systems have adopted a system in which the door safety device using an optical sensor is disconnected from the control circuit at the same time as the building issues a fire alarm, but in recent years, the door safety device using an optical sensor has been artificially malfunctioned due to mischief. In some cases, the door safety device using an optical sensor must be disconnected for building management purposes, so disconnecting the door safety device using an optical sensor from the building side through human intervention is not only troublesome but also troublesome. Sometimes I forget.
そこで、本発明の目的は、光センサによるドアの安全装
置を付加したエレベータで、常時は本来の非接触による
物体の検知を行い、火災発生時にエレベータを利用して
避難する乗客がいる場合には、煙が侵入してもドアを閉
めることができるようにしたエレベータのドア安全装置
を提供することにある。Therefore, an object of the present invention is to provide an elevator equipped with a door safety device using an optical sensor, which normally detects objects in a non-contact manner, and when there are passengers who use the elevator to evacuate in the event of a fire. To provide an elevator door safety device that allows the door to be closed even if smoke enters.
（課題を解決するための手段）
本発明は、かごまたは乗場に光センサを設け、この先セ
ンサが物体を検出したときドアが閉まるのを阻止または
閉中のドアを再開させるドア安全装置を付加したエレベ
ータの安全装置において、かごの内部に煙感知器を設け
、この煙感知器の検出信号により光センサの機能を消滅
するようにしたものである。(Means for Solving the Problems) The present invention provides a car or a landing with an optical sensor, and adds a door safety device that prevents the door from closing or reopens the closed door when the sensor detects an object. In an elevator safety device, a smoke detector is provided inside the car, and a detection signal from the smoke detector disables the function of the optical sensor.
（作 用）
建物内に発生した火災の煙がかご内に侵入しても、煙感
知器がこの煙を検出し、この検出信号によりドア閉指令
リレーを消勢して光センサの機能を消滅するから、ドア
を煙の侵入に関係なく閉めることができ、かごの昇降移
動を可能にする。(Function) Even if smoke from a fire that occurs in the building enters the car, the smoke detector detects this smoke, and this detection signal deenergizes the door close command relay and eliminates the function of the optical sensor. Therefore, the door can be closed regardless of smoke intrusion, and the car can be moved up and down.
（実施例）
以下、本発明の一実施例を図面を参照して説明する。第
工図は本発明に関連するエレベータの全体構成を示す断
面図である。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. The second engineering drawing is a sectional view showing the overall structure of an elevator related to the present invention.
同図において、３は昇降路、４はエレベータ機械室であ
り、昇降路３には，エレベータ機械室４に設置された巻
上機５とロープ６を介して昇降移動するかご７が設けら
れている。このかご７に一端を接続したテールコード８
は、他端をエレベータ機械室４に設置された制御盤９に
接続されている。昇降路３の下部（ピット）には、かご
７用の緩衝器１０、つり合いおもり１１用の緩衝器１２
が設けられている。In the figure, 3 is a hoistway, 4 is an elevator machine room, and the hoistway 3 is provided with a car 7 that moves up and down via a hoist 5 installed in the elevator machine room 4 and a rope 6. There is. Tail cord 8 with one end connected to this basket 7
The other end is connected to a control panel 9 installed in the elevator machine room 4. At the bottom (pit) of the hoistway 3, there are a buffer 10 for the car 7 and a buffer 12 for the counterweight 11.
is provided.
また、上記したかご７には、従来と同様に光センサ１３
が取付けられ、内部の天井または側面板に煙感知器１４
を取付ける。この感知器１４の検出信号は、テールコー
ド８を介してエレベータ機械室４の制御盤９に送られる
。In addition, the above-mentioned car 7 is equipped with an optical sensor 13 as in the conventional case.
A smoke detector 14 is installed on the internal ceiling or side panel.
Install. The detection signal of this sensor 14 is sent to the control panel 9 of the elevator machine room 4 via the tail cord 8.
一方、第２図のドア制御回路に示すように制御電源ＰＮ
間に、煙感知器１４と組合せたリレーの常閉接点ｌ５を
、光センサエとドア開指令リレー２の間に直列に接続す
る。On the other hand, as shown in the door control circuit of FIG.
Meanwhile, the normally closed contact l5 of the relay combined with the smoke detector 14 is connected in series between the optical sensor and the door open command relay 2.
次に、以上のように構成された実施例の作用を説明する
。建物で火災が発生したとき、かご７のドアが開いてい
ると建物側から煙１６がかご７内に侵入する。しかし、
煙感知器ｌ４がこれを検出し，煙感知器１４に組合され
ているリレー（またはスイッチ）を動作させ，常閉接点
ｌ５を釈放する。したがって、ドア開指令リレー２が消
勢され、ドア制御回路への接点信号がキャンセルされる
。このため、光センサ１の動作に関係なく、ドア閉ボタ
ンを押せば，ドア閉指令によりドアを閉めることができ
、かご７が下降（または上昇）できるから、安全に避難
することができる。Next, the operation of the embodiment configured as above will be explained. When a fire breaks out in a building, if the door of the car 7 is open, smoke 16 will enter the car 7 from the building side. but,
Smoke detector l4 detects this and operates a relay (or switch) associated with smoke detector 14, which releases normally closed contact l5. Therefore, the door open command relay 2 is deenergized and the contact signal to the door control circuit is canceled. Therefore, regardless of the operation of the optical sensor 1, if the door close button is pressed, the door can be closed in response to a door close command, and the car 7 can be lowered (or raised), allowing for safe evacuation.
以上説明したように本発明によれば、建物側による火災
の検出による指令がないかあっても失念や誤り等があっ
た場合にも，エレベータ単独でかご内に侵入した煙を検
出し，光センサによるドアの安全装置を切離すことがで
きるから、光センサによる物体検出の本来の機能を何ら
損うことなく，エレベータによる避難を安全に行うこと
ができる。As explained above, according to the present invention, the elevator alone can detect smoke that has entered the car, even if there is no command from the building side due to fire detection, or even if there is a forgetfulness or mistake. Since the sensor-based door safety device can be separated, evacuation using the elevator can be safely performed without any loss of the original function of object detection using the optical sensor.
第１図は本発明に関連するエレベータの全体構成を示す
断面図、第２図は本発明の一実施例のドア制御回路図、
第３図は従来のエレベータのドアの制御回路図である。
１・・・光センサ、 ３・・・昇降路４・・・
エレベータ機械室、５・・・巻上機７・・・かご、
１４・・・煙感知器１６・・・煙FIG. 1 is a sectional view showing the overall structure of an elevator related to the present invention, FIG. 2 is a door control circuit diagram of an embodiment of the present invention,
FIG. 3 is a conventional elevator door control circuit diagram. 1... Optical sensor, 3... Hoistway 4...
Elevator machine room, 5... hoisting machine 7... car,
14...Smoke detector 16...Smoke
Claims (1)
を検出したときドアが閉まるのを防止または閉中のドア
を再開させるドア安全装置を付加したエレベータの安全
装置において、前記かごの内部に煙感知器を設け、この
煙感知器の検出信号により前記光センサの機能を消滅す
るようにしたことを特徴とするエレベータの安全装置。In an elevator safety device, an optical sensor is installed in the car or the landing, and when the optical sensor detects an object, a door safety device is added that prevents the door from closing or reopens the closed door. 1. A safety device for an elevator, characterized in that a sensor is provided, and the function of the optical sensor is canceled by a detection signal from the smoke sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23290189A JPH0398983A (en) | 1989-09-11 | 1989-09-11 | Safety device for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23290189A JPH0398983A (en) | 1989-09-11 | 1989-09-11 | Safety device for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0398983A true JPH0398983A (en) | 1991-04-24 |
Family
ID=16946618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23290189A Pending JPH0398983A (en) | 1989-09-11 | 1989-09-11 | Safety device for elevator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0398983A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100697996B1 (en) * | 2005-08-24 | 2007-03-23 | 주식회사 한국건설관리공사 | Sand Dividing Not Yet |
| JP2007169014A (en) * | 2005-12-26 | 2007-07-05 | Nikko Co Ltd | Hopper device with sieve |
| JP2023115814A (en) * | 2022-02-08 | 2023-08-21 | フジテック株式会社 | elevator |
-
1989
- 1989-09-11 JP JP23290189A patent/JPH0398983A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100697996B1 (en) * | 2005-08-24 | 2007-03-23 | 주식회사 한국건설관리공사 | Sand Dividing Not Yet |
| JP2007169014A (en) * | 2005-12-26 | 2007-07-05 | Nikko Co Ltd | Hopper device with sieve |
| JP2023115814A (en) * | 2022-02-08 | 2023-08-21 | フジテック株式会社 | elevator |
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