JP2000001276A - Rescue-operation device for elevator during power failure - Google Patents

Rescue-operation device for elevator during power failure

Info

Publication number
JP2000001276A
JP2000001276A JP18167898A JP18167898A JP2000001276A JP 2000001276 A JP2000001276 A JP 2000001276A JP 18167898 A JP18167898 A JP 18167898A JP 18167898 A JP18167898 A JP 18167898A JP 2000001276 A JP2000001276 A JP 2000001276A
Authority
JP
Japan
Prior art keywords
elevator
power failure
power supply
induction motor
rescue
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
Application number
JP18167898A
Other languages
Japanese (ja)
Inventor
Hiroyoshi Fujita
裕義 藤田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Electric Manufacturing Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyo Electric Manufacturing Ltd filed Critical Toyo Electric Manufacturing Ltd
Priority to JP18167898A priority Critical patent/JP2000001276A/en
Publication of JP2000001276A publication Critical patent/JP2000001276A/en
Pending legal-status Critical Current

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

PROBLEM TO BE SOLVED: To dissolve problems in a elevator rescue operation device during power failure, in rescue-operating an elevator through a back up power source device, when the direction of rescue operation is set the same as a direction before the power failure such as large-size of a back up power source device installing space and increase in maintenance cost. SOLUTION: A rescue-operation device is equipped with a memory for storing a generated torque computed value of an induction motor 1 for driving an elevator and a judging value of the operating direction of an elevator during a power failure, and when the back up power source device 31 begins an electric supply on the judging value of the elevator operating direction and the generated torque computed value at the time of the occurrence of the power stoppage, and the elevator is rescue-operated, the operating direction of the elevator during its secure-operation can be judged on a stored value.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、エレベータの運転
操作に関するもので、特に停電時に使用するバックアッ
プ電源装置の小型化を可能にする「停電時のエレベータ
救出運転装置」に係わるものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator operation and, more particularly, to an "elevator rescue operation device at the time of a power failure" which enables a backup power supply device used at the time of a power failure to be downsized.

【0002】[0002]

【従来の技術】図3は従来方式による停電時のエレベー
タ救出運転装置のシステム構成図である。図3におい
て、1は誘導電動機、2は誘導電動機1を可変速制御す
るためのインバータ装置であり、誘導電動機1の出力は
機械ブレーキ装置11と減速機12を通じてシーブ13
に伝達される。エレベータの乗車カゴ40はケーブル1
4でカウンタウエイト15と繋げられ、シーブ13の回
転方向に従い上昇・下降する。30は平常時給電する商
用電源、31は停電時にインバータ装置2へ給電するバ
ックアップ電源装置、32は商用電源の停電を検出する
停電検出器、33は停電検出器32の出力により作動す
る電源切換スイッチである。停電検出器32において商
用電源30の停電を検出すると電源切換スイッチ33に
より、バックアップ電源装置31よりインバータ装置2
へ給電し、エレベータの救出運転を行うように構成され
ている。
2. Description of the Related Art FIG. 3 is a system configuration diagram of an elevator rescue operation device at the time of a power failure according to a conventional system. 3, reference numeral 1 denotes an induction motor, and 2 denotes an inverter device for controlling the induction motor 1 at a variable speed. The output of the induction motor 1 is transmitted through a mechanical brake device 11 and a speed reducer 12 to a sheave 13.
Is transmitted to The elevator car 40 is cable 1
At 4, it is connected to the counterweight 15 and moves up and down according to the rotation direction of the sheave 13. Reference numeral 30 denotes a commercial power supply that normally supplies power, 31 denotes a backup power supply that supplies power to the inverter device 2 in the event of a power failure, 32 denotes a power failure detector that detects a power failure of the commercial power supply, and 33 denotes a power switch that is activated by the output of the power failure detector 32 It is. When a power failure of the commercial power supply 30 is detected by the power failure detector 32, the power supply switch 33 is used to switch the backup power supply device 31 from the inverter device 2.
Power supply to the vehicle and perform a rescue operation of the elevator.

【0003】エレベータの救出運転とは、エレベータ装
置が停電の発生により一旦停止するように構成されてい
るため、停電時にはその停止位置が必ずしも停止階とは
ならず、そのため乗車カゴの扉が開かず乗車カゴ内に乗
客が閉じこめられている可能性が生じるが、そのような
場合に商用電源の回復を待たずに速やかにバックアップ
電源装置等によりエレベータの運転を再開し、乗車カゴ
内に閉じこめられている乗客を救出する運転モードを指
すものである。
[0003] The rescue operation of an elevator means that the elevator device is temporarily stopped due to the occurrence of a power failure, so that at the time of a power failure, the stop position is not necessarily at the stop floor, so that the door of the car does not open. There is a possibility that passengers are trapped in the car, but in such a case, the elevators are immediately restarted by the backup power supply etc. without waiting for the recovery of commercial power, and the passengers are trapped in the car. It refers to a driving mode in which a passenger is rescued.

【0004】従来の停電時におけるエレベータ救出運転
装置では、運転方向指令器21より入力される運転方向
指令を停電検出器32からの出力で固定し、バックアッ
プ電源より給電が開始されると停電発生時に固定された
運転方向へエレベータを運転するように構成されてい
る。すなわち、上昇運転中に停電が発生すれば救出運転
の方向も上昇方向とし、下降運転中であれば救出運転の
方向も下降方向になるように構成されている。
In the conventional elevator rescue operation device at the time of a power failure, the operation direction command input from the operation direction command device 21 is fixed at the output from the power failure detector 32, and when power supply is started from the backup power source, the power failure occurs when the power failure occurs. The elevator is configured to operate in a fixed operation direction. That is, if a power failure occurs during the ascending operation, the direction of the rescue operation is also set to the ascending direction, and if the power operation is during the descending operation, the direction of the rescue operation is set to the descending direction.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、上述す
る従来の停電時のエレベータ救出運転装置の如く、停電
時にバックアップ電源装置より給電する際、停電時と同
じ方向に運転するとエレベータを駆動するための電源容
量は商用電源が正常なときに通常必要とされる電源容量
と同一容量が必要となる。いま仮に、エレベータの自重
1トン、最大カゴ内積載荷重1トン、カウンタウエイト
の重量を1.5トンとすると、カゴ内積載重量が最大の
状態で上昇中の場合、(自重+最大カゴ内積載荷重−カ
ウンタウエイトの重量)=0.5トンの荷重を移動させ
得る容量の電源が必要になる。同様に、空車で下降中は
(カウンタウエイトの重量−自重)=0.5トンの荷重
を移動させ得る容量の電源が必要になる。すなわち、従
来の方式ではバックアップ電源装置が大型化し、バック
アップ電源装置の設置スペースの問題や管理上のコスト
アップが問題となっている。
However, as in the above-mentioned conventional elevator rescue operation device at the time of a power failure, when power is supplied from a backup power supply at the time of a power failure, a power supply for driving the elevator if the operation is performed in the same direction as at the time of the power failure. The capacity should be the same as the power capacity normally required when the commercial power supply is normal. Assuming that the elevator's own weight is 1 ton, the maximum load in the car is 1 ton, and the weight of the counterweight is 1.5 ton, if the load in the car is rising at the maximum state, (self weight + maximum load in the car) A load of a capacity capable of moving a load of (load-weight of counterweight) = 0.5 ton is required. Similarly, a power supply having a capacity capable of moving a load of (weight of the counterweight-own weight) = 0.5 ton while the vehicle is empty is required. That is, in the conventional method, the size of the backup power supply becomes large, and there is a problem of an installation space of the backup power supply and an increase in management cost.

【0006】[0006]

【課題を解決するための手段】上記のような課題を解決
するため本発明では、エレベータを駆動する誘導電動機
と誘導電動機の可変速制御用インバータ装置と誘導電動
機の発生トルクを演算する発生トルク演算器、誘導電動
機の回転方向よりエレベータの運転方向を判定する運転
方向判定器、エレベータの運転停止時機械的に固定する
機械ブレーキ装置およびインバータ装置への給電が可能
なバックアップ電源装置を備えて、停電時にはバックア
ップ電源装置よりインバータ装置へ給電しエレベータの
駆動が可能となるように構成している停電時のエレベー
タ救出運転装置において、停電が発生した時点でのエレ
ベータ運転方向判定器の出力を記憶する記憶装置と前記
発生トルク演算器の出力を記憶する記憶装置を新たに備
え、バックアップ電源装置により給電が開始されエレベ
ータの救出運転をする際、2つの記憶装置に記憶されて
いる停電発生時にエレベータが運転されていた方向と誘
導電動機の発生トルク演算値とを用いて、救出運転時に
おけるエレベータの駆動方向を判定するように構成す
る。
In order to solve the above-mentioned problems, the present invention provides an induction motor for driving an elevator, an inverter device for variable speed control of the induction motor, and a generated torque calculation for calculating a generated torque of the induction motor. Direction determining device that determines the operating direction of the elevator from the rotating direction of the induction motor, a mechanical brake device that is mechanically fixed when the operation of the elevator is stopped, and a backup power supply device that can supply power to the inverter device. Sometimes, a backup power supply device supplies power to an inverter device to enable driving of an elevator.In an elevator rescue operation device at the time of a power failure, a memory for storing an output of an elevator operation direction determiner at the time of a power failure. Device and a storage device for storing the output of the generated torque calculator, When the power supply is started by the power source device and the rescue operation of the elevator is performed, the rescue operation is performed by using the direction in which the elevator was operated at the time of the power failure and the calculated torque generated by the induction motor, which are stored in the two storage devices. The driving direction of the elevator is determined.

【0007】[0007]

【発明の実施の形態】エレベータシステムの始動時、機
械的に固定する機械ブレーキ装置11を解放するが、当
然ながら乗車カゴかカウンタウエイトのどちらか重量の
重い方向へ自然に加速し落下しようとする。そこで自然
落下する方向へエレベータシステムを始動するように誘
導電動機1をインバータ装置2で駆動すれば、始動トル
クが小さくなるため駆動電力を抑えることができ、バッ
クアップ電源装置の容量を小さく設定することが可能と
なる。
DESCRIPTION OF THE PREFERRED EMBODIMENTS At the start of an elevator system, a mechanical brake device 11, which is mechanically fixed, is released, but naturally, it tends to naturally accelerate and drop in the direction of the heavier one of the car or the counterweight. . Therefore, if the induction motor 1 is driven by the inverter device 2 so as to start the elevator system in the direction of natural fall, the starting torque is reduced, so that the driving power can be suppressed, and the capacity of the backup power supply device can be set small. It becomes possible.

【0008】本発明では、乗車カゴとカウンタウエイト
の重量差により自然落下する方向を検出するのに停電前
の運転方向と、そのときに駆動トルクを発生しているか
回生トルクを発生しているかによって判定する。すなわ
ち、停電前の運転方向が上昇運転で、トルク演算値が駆
動トルクを発生している場合(乗車カゴの重量の方がカ
ウンタウエイトの重量より重い場合に相当する。)、機
械ブレーキ装置解放時にはカゴ側に自然落下する方向で
あり、従って、バックアップ電源装置での運転方向は下
降運転側にすると電源容量が少なくて済む。同様に、停
電前の運転方向が上昇運転で、トルク演算値が回生トル
クを発生していた場合(カウンタウエイトの重量の方が
乗車カゴの重量より重い場合に相当する。)、機械ブレ
ーキ装置解放時にはカウンタウエイト側に自然落下する
方向であり、従って、バックアップ電源装置での運転方
向は上昇運転側にすると電源容量が少なくて済む。停電
前の運転方向が下降運転の場合も同様である。図2はこ
の考え方に基づいて運転方向を判定する場合の規則を示
す。この図に従って、運転方向を選択すると、バックア
ップ電源装置によるエレベータ運転時の電源容量を小さ
くすることが出来る。
According to the present invention, the direction in which the vehicle naturally falls due to the weight difference between the riding car and the counterweight is detected by determining the driving direction before the power failure and whether the driving torque or the regenerative torque is generated at that time. judge. That is, when the driving direction before the power failure is ascending operation and the calculated torque value is generating driving torque (corresponding to the case where the weight of the riding car is heavier than the weight of the counterweight), when the mechanical brake device is released. This is the direction in which the power supply falls naturally to the car side. Therefore, when the operation direction of the backup power supply device is the downward operation side, the power supply capacity can be reduced. Similarly, when the operation direction before the power failure is the ascending operation and the calculated torque value is generating regenerative torque (corresponding to the case where the weight of the counterweight is heavier than the weight of the riding basket), the mechanical brake device is released. In some cases, the direction of natural fall to the counterweight side is small. Therefore, when the operation direction of the backup power supply device is set to the ascending operation side, the power supply capacity can be reduced. The same applies when the operation direction before the power failure is the descending operation. FIG. 2 shows a rule for determining the driving direction based on this concept. When the operation direction is selected according to this figure, the power supply capacity during elevator operation by the backup power supply device can be reduced.

【0009】そこで、停電が発生した時点でのエレベー
タが運転されている方向を第1の記憶装置に記憶すると
ともに、発生トルク演算器の出力を第2の記憶装置に記
憶する。同時に電源切換スイッチがバックアップ電源装
置により給電される側に切換られ、バックアップ電源装
置により給電が開始されエレベータの救出運転をする
際、機械ブレーキ装置による固定を解放するときに、エ
レベータシステムが自然に動き出す方向すなわち自然に
落下する方向を、エレベータの運転方向記憶結果と発生
トルク演算値の記憶結果より判定し、エレベータシステ
ムを自然落下方向へインバータ装置により駆動するよう
に作用させる。
Therefore, the direction in which the elevator is operated when the power failure occurs is stored in the first storage device, and the output of the generated torque calculator is stored in the second storage device. At the same time, the power switch is switched to the side to be supplied with power by the backup power supply, and when the power is started by the backup power supply and the rescue operation of the elevator is performed, when the fixing by the mechanical brake device is released, the elevator system starts to move naturally. The direction, that is, the direction in which the vehicle naturally falls, is determined from the result of storage of the operation direction of the elevator and the result of storage of the calculated value of the generated torque, so that the inverter system is driven by the inverter device in the direction of natural fall.

【0010】以下、本発明の一実施例を図面に基づいて
説明する。図1は本発明に係る停電時のエレベータ救出
運転装置の一実施例を示すシステム構成図である。図1
において、図3と同一記号は同一機能、同一構成の部分
であるので説明を省略する。図1において、20はエレ
ベータの救出運転方向判定回路であり、インバータ装置
2より誘導電動機1へ供給される電流と電圧をそれぞれ
検出し誘導電動機2の発生トルクを演算する発生トルク
演算器22、誘導電動機2の回転方向を検出する回転方
向検出器3の出力からエレベータシステムの運転方向を
判定する運転方向判定器23、停電発生時に発生トルク
演算器22の出力を記憶する発生トルク演算値記憶装置
221、同様に停電発生時に運転方向判定器23の出力
を記憶する運転方向記憶装置231、演算トルク記憶装
置221と運転方向記憶装置231に記憶された結果よ
りバックアップ電源装置31にてエレベータを救出運転
する方向を判定する運転方向設定回路24から構成され
ている。
An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a system configuration diagram showing an embodiment of an elevator rescue operation device at the time of a power failure according to the present invention. FIG.
In FIG. 3, the same symbols as those in FIG. In FIG. 1, reference numeral 20 denotes an elevator rescue operation direction determination circuit, which detects a current and a voltage supplied from the inverter device 2 to the induction motor 1 to calculate a generated torque of the induction motor 2, respectively. A driving direction determiner 23 that determines the operation direction of the elevator system from an output of a rotation direction detector 3 that detects a rotation direction of the electric motor 2, and a generated torque calculation value storage device 221 that stores an output of a generated torque calculator 22 when a power failure occurs. Similarly, the elevator is rescued by the backup power supply device 31 based on the results stored in the driving direction storage device 231, the calculated torque storage device 221, and the driving direction storage device 231 that store the output of the driving direction determiner 23 when a power failure occurs. The driving direction setting circuit 24 determines the direction.

【0011】停電検出器32が商用電源30の停電を示
す信号を、演算トルク記憶装置221と運転方向記憶装
置231および運転方向設定回路24へ出力すると、演
算トルク記憶装置221と運転方向記憶装置231とは
その瞬間のデータを記憶し、運転方向設定回路24へ出
力する。運転方向設定回路24では各記憶装置からのデ
ータをもとに図2に示す判定表からエレベータの救出運
転方向を設定しインバータ装置へ出力する。
When the power failure detector 32 outputs a signal indicating a power failure of the commercial power supply 30 to the calculation torque storage device 221, the driving direction storage device 231, and the driving direction setting circuit 24, the calculation torque storage device 221 and the driving direction storage device 231 are output. Means that data at that moment is stored and output to the driving direction setting circuit 24. The driving direction setting circuit 24 sets the rescue driving direction of the elevator from the determination table shown in FIG. 2 based on the data from each storage device and outputs the direction to the inverter device.

【0012】一例として、乗車カゴに定員乗車している
状態で停電が発生する場合について説明する。エレベー
タの乗車カゴの状態は通常インバータ装置には入力され
ないので、停電発生時の各記憶装置の状態によりインバ
ータ装置にて判定している。停電を検出した時点の発生
トルク演算値記憶装置221の出力は「駆動トルク」を
示し、エレベータ運転方向記憶装置231の出力は「上
昇運転」を示しているならば、乗車カゴとカウンタウエ
イトとのバランスは乗車カゴ側が重い状態にあると判断
される。このとき機械ブレーキ装置解放時の自然に落下
する方向は乗車カゴ側となり、従って図2の判定表より
バックアップ電源装置31によるエレベータシステムの
運転方向は下降方向へ判定されることになり、救出運転
ではエレベータは停電前とは逆方向へ運転される。
As an example, a case will be described in which a power failure occurs in a state where the passenger car is occupying a limited number of cars. Since the status of the elevator car is not normally input to the inverter device, the inverter device determines the status of each storage device when a power failure occurs. If the output of the generated torque operation value storage device 221 at the time of detecting the power failure indicates “drive torque” and the output of the elevator operation direction storage device 231 indicates “upward operation”, the output of the riding basket and the counterweight is determined. The balance is determined to be heavy on the side of the car. At this time, the direction in which the mechanical brake device falls naturally when the mechanical brake device is released is the side of the car, and therefore, the operation direction of the elevator system by the backup power supply device 31 is determined to be in the descending direction from the determination table of FIG. The elevator operates in the opposite direction from before the power failure.

【0013】[0013]

【発明の効果】以上説明したように本発明によれば、停
電時にバックアップ電源装置より給電してエレベータの
救出運転をする際、停電が発生した時点でのエレベータ
運転方向と発生トルク演算値を記憶し、機械ブレーキ装
置解放時にエレベータシステムが自然に動き出す方向す
なわち自然に落下する方向へインバータ装置にて駆動す
るよう構成することでバックアップ電源装置の容量を小
さくすることが可能となり、バックアップ電源装置の小
型化・設置スペースの縮小・管理コストの低減が達成さ
れる停電時のエレベータ救出運転装置の提供が可能とな
る。
As described above, according to the present invention, when power is supplied from the backup power supply device during a power outage to perform an elevator rescue operation, the elevator operation direction and the calculated torque calculation value at the time of the power outage are stored. However, by configuring the elevator system to be driven by the inverter device in a direction in which the elevator system naturally starts moving when the mechanical brake device is released, that is, in a direction in which the elevator system falls naturally, the capacity of the backup power supply device can be reduced, and the backup power supply device can be made compact Thus, it is possible to provide an elevator rescue operation device at the time of a power outage, which achieves a reduction in installation space and management cost.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施例のブロック図である。FIG. 1 is a block diagram of one embodiment of the present invention.

【図2】本発明による停電時の運転方向判定手順であ
る。
FIG. 2 shows a procedure for determining the driving direction at the time of a power failure according to the present invention.

【図3】従来例の構成を示すブロック図である。FIG. 3 is a block diagram showing a configuration of a conventional example.

【符号の説明】[Explanation of symbols]

1 誘導電動機 2 インバータ装置 3 回転方向検出器 4 電流検出器 5 電圧検出器 11 機械ブレーキ装置 12 減速機 13 シーブ 14 ケーブル 15 カウンタウエイト 20 救出運転方向判定回路 21 運転方向指令器 22 発生トルク演算器 221 発生トルク演算値記憶装置 23 運転方向判定器 231 運転方向記憶装置 24 運転方向設定回路 30 商用電源 31 バックアップ電源装置 32 停電検出器 33 電源切換スイッチ 40 乗車カゴ DESCRIPTION OF SYMBOLS 1 Induction motor 2 Inverter device 3 Rotation direction detector 4 Current detector 5 Voltage detector 11 Mechanical brake device 12 Reduction gear 13 Sheave 14 Cable 15 Counter weight 20 Rescue operation direction determination circuit 21 Operation direction commander 22 Generated torque calculator 221 Generated torque calculation value storage device 23 Operation direction judgment device 231 Operation direction storage device 24 Operation direction setting circuit 30 Commercial power supply 31 Backup power supply device 32 Power failure detector 33 Power supply changeover switch 40 Riding car

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 エレベータを駆動する誘導電動機、該誘
導電動機を可変速制御するインバータ装置、該インバー
タ装置より前記誘導電動機へ供給される電圧および電流
を検出し前記誘導電動機の発生トルクを演算する発生ト
ルク演算器、前記誘導電動機の回転方向よりエレベータ
の運転方向を判定する運転方向判定器、エレベータの運
転停止時機械的に固定する機械ブレーキ装置および前記
インバータ装置への給電が可能なバックアップ電源装置
を備え、停電発生時には前記バックアップ電源装置より
前記インバータ装置へ給電しエレベータの駆動が可能と
なるように構成された停電時のエレベータ救出運転装置
において、停電発生時の前記エレベータ運転方向判定器
の出力を記憶する第1の記憶装置と前記発生トルク演算
器の出力を記憶する第2の記憶装置を新たに備え、前記
バックアップ電源装置により給電が開始されエレベータ
の救出運転をする際、前記2つの記憶装置に記憶された
停電発生時のエレベータの運転方向と前記誘導電動機の
発生トルク演算値とを用いて、エレベータを駆動する方
向を判定するように構成したことを特徴とする停電時の
エレベータ救出運転装置。
1. An induction motor for driving an elevator, an inverter device for controlling the induction motor at a variable speed, a voltage and a current supplied from the inverter device to the induction motor to calculate a generated torque of the induction motor. A torque calculator, a driving direction determiner that determines the operating direction of the elevator from the rotation direction of the induction motor, a mechanical brake device that mechanically fixes when the elevator stops operating, and a backup power supply device that can supply power to the inverter device. In the event of a power failure, in the elevator rescue operation device at the time of power failure configured to be able to drive the elevator by supplying power to the inverter device from the backup power supply device, the output of the elevator operation direction determiner at the time of the power failure occurs A first storage device for storing and an output of the generated torque calculator. When a power supply is started by the backup power supply and an elevator rescue operation is performed, a second storage device is newly provided, and the operation direction of the elevator and the generation of the induction motor stored in the two storage devices when a power failure occurs. An elevator rescue operation device at the time of a power failure, wherein a direction in which an elevator is driven is determined using a torque calculation value.
JP18167898A 1998-06-12 1998-06-12 Rescue-operation device for elevator during power failure Pending JP2000001276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18167898A JP2000001276A (en) 1998-06-12 1998-06-12 Rescue-operation device for elevator during power failure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18167898A JP2000001276A (en) 1998-06-12 1998-06-12 Rescue-operation device for elevator during power failure

Publications (1)

Publication Number Publication Date
JP2000001276A true JP2000001276A (en) 2000-01-07

Family

ID=16104968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18167898A Pending JP2000001276A (en) 1998-06-12 1998-06-12 Rescue-operation device for elevator during power failure

Country Status (1)

Country Link
JP (1) JP2000001276A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008526648A (en) * 2005-01-11 2008-07-24 オーチス エレベータ カンパニー How to perform rescue operation of an elevator
JP2012532078A (en) * 2009-06-30 2012-12-13 オーチス エレベータ カンパニー Gravity-driven start-up phase in power rescue elevator rescue operations
CN106829673A (en) * 2017-04-07 2017-06-13 上海爱登堡电梯集团股份有限公司 Machine-roomless lift with emergency rescue apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008526648A (en) * 2005-01-11 2008-07-24 オーチス エレベータ カンパニー How to perform rescue operation of an elevator
JP4857285B2 (en) * 2005-01-11 2012-01-18 オーチス エレベータ カンパニー How to perform rescue operation of an elevator
JP2012532078A (en) * 2009-06-30 2012-12-13 オーチス エレベータ カンパニー Gravity-driven start-up phase in power rescue elevator rescue operations
US8960371B2 (en) 2009-06-30 2015-02-24 Otis Gmbh & Co. Ohg Gravity driven start phase in power limited elevator rescue operation
CN106829673A (en) * 2017-04-07 2017-06-13 上海爱登堡电梯集团股份有限公司 Machine-roomless lift with emergency rescue apparatus
CN106829673B (en) * 2017-04-07 2022-08-05 上海爱登堡电梯集团股份有限公司 Machine room-less elevator with emergency rescue device

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