JP2012140194A

JP2012140194A - Elevator

Info

Publication number: JP2012140194A
Application number: JP2010292787A
Authority: JP
Inventors: Shinji Yoshimoto; 慎治吉元; Masaya Furuhashi; 昌也古橋; Hironori Fukada; 裕紀深田; Jun Toyabe; 潤鳥谷部; Naoki Takayama; 直樹高山; Kimito Nakagawa; 公人中川; Shinsuke Inoue; 真輔井上
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 2010-12-28
Filing date: 2010-12-28
Publication date: 2012-07-26
Anticipated expiration: 2030-12-28
Also published as: JP5449127B2; CN102530660A

Abstract

PROBLEM TO BE SOLVED: To provide an elevator which has high operational reliability, is suppressed in the risk of dangerous installation operation and maintenance operation, and can shorten wiring.SOLUTION: An uppermost floor detecting detector 7a and a lowermost floor detecting detector 7b are disposed on a governor rope 3, the uppermost floor detecting sensor 6a and the lowermost floor detecting sensor 6b are disposed near a governor driving side pulley 2, a control part 9 which controls a driving operation of the governor with detection signals of the sensors 6a, 6b is disposed, and on the basis of detection of the uppermost floor detecting detector 7a with the uppermost floor detecting sensor 6a and the detection of the lowermost floor detecting detector 7b with the lowermost floor detecting sensor 6b, the driving operation of the governor is controlled by the control part 2.

Description

本発明はエレベータに係り、特にエレベータの安全運転のために乗りかごの過上昇あるいは過降下を防止する技術に関するものである。 The present invention relates to an elevator, and more particularly to a technique for preventing an excessive rise or fall of a car for safe operation of the elevator.

図７は、従来、例えば下記の特許文献１などに記載されているエレベータの概略構成図である。同図において、１はエレベータの乗りかごで、それの昇降路内に立設されたかご用ガイドレール（図示せず）に案内されて昇降動作する。２は調速機（図示せず）の駆動軸に付設された駆動側プーリ、３はその調速機駆動側プーリに掛けられているエンドレス状の調速機ロープである。 FIG. 7 is a schematic configuration diagram of an elevator conventionally described in, for example, Patent Document 1 below. In the figure, reference numeral 1 denotes an elevator car, which is moved up and down by being guided by a car guide rail (not shown) standing in the hoistway thereof. Reference numeral 2 denotes a driving pulley attached to a drive shaft of a governor (not shown), and 3 denotes an endless governor rope hung on the governor driving pulley.

また、４ａならびに４ｂは昇降路内の終端階（最上階、最下階）付近にそれぞれ設置されたレバー付きのリミットスイッチ、５は前記リミットスイッチ４ａ，４ｂを作動させるために乗りかご１の側面に取り付けられたスイッチカムである。図中の９は制御部（制御盤）で、前記リミットスイッチ４ａ，４ｂの検出信号などの各種信号が取り入れられて、乗りかご１の昇降動作あるいは緊急停止動作などの動作制御を行っている。 Further, 4a and 4b are limit switches with levers installed near the terminal floor (uppermost floor, lowermost floor) in the hoistway, and 5 is a side surface of the car 1 for operating the limit switches 4a and 4b. It is a switch cam attached to. Reference numeral 9 in the figure denotes a control unit (control panel) which takes in various signals such as detection signals from the limit switches 4a and 4b and performs operation control such as raising / lowering operation of the car 1 or emergency stop operation.

前記乗りかご１の昇降動作に伴って前記スイッチカム５により前記レバーが押されて、前記リミットスイッチ４ａあるいは４ｂが動作すると、そのリミットスイッチ４ａあるいは４ｂの検出信号が前記制御部９に入力される。その検出信号に基づいて制御部９から出力される停止指令信号により前記乗りかご１の移動を停止して、乗りかご１の過上昇あるいは過降下を防止するシステムになっている。 When the lever is pushed by the switch cam 5 as the car 1 moves up and down and the limit switch 4a or 4b operates, a detection signal of the limit switch 4a or 4b is input to the control unit 9. . Based on the detection signal, the movement of the car 1 is stopped by a stop command signal output from the control unit 9 to prevent the car 1 from excessively rising or falling.

また、下記の特許文献２には、釣り合い錘用ガイドレール及び釣り合い錘に検出センサー及び検出体を取り付け、一方、調速機用ロープと調速機用ロープ張り車にそれぞれ検出用センサー及び検出体を取り付けたエレベータ釣り合い錘・調速機ロープ張り車のクリアランス管理測定装置及び方法が提案されている。 Further, in Patent Document 2 below, a detection sensor and a detection body are attached to a guide rail for a counterweight and a counterweight, while a detection sensor and a detection body are attached to a rope for a governor and a rope tensioner for a governor, respectively. A clearance management measuring device and method for an elevator balancing weight / governor rope-crawler equipped with a motor have been proposed.

さらに、下記の特許文献３には、機械室の巻き上げ機に掛けられたロープの一端に乗りかごを連結し、前記ロープの他端に釣り合い錘を連結して、昇降路内における前記乗りかごの上限位置および下限位置をリミットスイッチにより検出し、このリミットスイッチの検出信号を前記巻き上げ機の制御部に入力するエレベータ工事安全装置において、前記巻き上げ機の付近の前記乗りかご側および釣り合い錘側の前記ロープの付近に、前記リミットスイッチをそれぞれ設け、前記乗りかごの上限位置および下限位置に対応する位置で、前記リミットスイッチをそれぞれ作動させる部材を前記ロープに設けることが提案されている。 Further, in Patent Document 3 below, a car is connected to one end of a rope hung on a hoist in a machine room, a counterweight is connected to the other end of the rope, and the car in the hoistway is connected. In an elevator construction safety device that detects an upper limit position and a lower limit position with a limit switch, and inputs a detection signal of the limit switch to the control unit of the hoisting machine, the car side and the counterweight side in the vicinity of the hoisting machine It has been proposed that the limit switches are provided in the vicinity of the rope, and members for operating the limit switches are provided on the rope at positions corresponding to the upper limit position and the lower limit position of the car.

さらにまた、下記の特許文献４には、乗りかごの昇降に連動して循環する調速機ロープに、位置情報が書き込まれた複数のＩＣタグを設け、前記乗りかごの昇降路壁に前記ＩＣタグの位置情報を読み取るタグリーダを設けることが提案されている。 Furthermore, in Patent Document 4 below, a plurality of IC tags having position information written therein are provided on a governor rope that circulates in conjunction with raising and lowering of the car, and the IC is provided on the hoistway wall of the car. It has been proposed to provide a tag reader that reads tag position information.

特開昭６１−６９６７６号公報JP-A-61-69676 特開２００８−２８０１０１号公報JP 2008-280101A 特公平６−２０９８９号公報Japanese Patent Publication No. 6-20989 特開２００６−３６４３０号公報JP 2006-36430 A

前記特許文献１に記載の従来技術では、リミットスイッチ４ａ，４ｂは乗りかご１の昇降路内に設置されており、昇降路内で点検作業を行わなければならないため、時間がかかるうえ、操作ミスにより保守員に危険が及ぶ場合があった。さらに、昇降路内に設置されたリミットスイッチ４ａ，４ｂから機械室内にある制御部９へ信号を伝送するための配線は高階床になればなるほど長くなり、そのため配線作業が煩雑となり、またコスト高を招くなどの問題がある。 In the prior art described in Patent Document 1, the limit switches 4a and 4b are installed in the hoistway of the car 1, and inspection work must be performed in the hoistway. May cause danger to maintenance personnel. Furthermore, the wiring for transmitting a signal from the limit switches 4a and 4b installed in the hoistway to the control unit 9 in the machine room becomes longer as the floor becomes higher, so that the wiring work becomes complicated and the cost increases. There is a problem such as inviting.

また、前記特許文献２に記載の従来技術は、前述のように釣り合い錘用ガイドレール及び釣り合い錘に検出センサー及び検出体を取り付け、調速機用ロープと調速機用ロープ張り車にそれぞれ検出用センサー及び検出体を取り付けて、エレベータ釣り合い錘・調速機ロープ張り車のクリアランスを測定する方法である。 In addition, as described above, the prior art described in Patent Document 2 is provided with a detection sensor and a detection body attached to the counterweight guide rail and the counterweight, and is detected by the governor rope and the governor rope tensioner, respectively. This is a method of measuring the clearance of an elevator counterweight / governor rope tensioned vehicle by attaching a sensor and a detector.

そのため、乗りかごが終端階を超えて過昇降するのを防ぐリミットスイッチの役割はなく、従来通りリミットスイッチを設ける必要がある。さらにエレベータ調速機用ロープの検出器は昇降路内頂部に設置されているため、昇降路内下部に取り付けられた制御部へ信号を送るための配線は高階床になればなるほど長くなり、そのため配線作業が煩雑となり、またコスト高を招くなどの問題がある。 For this reason, there is no role of a limit switch that prevents the car from going up and down beyond the terminal floor, and it is necessary to provide a limit switch as usual. Furthermore, since the elevator governor rope detector is installed at the top of the hoistway, the wiring to send signals to the control unit attached to the lower part of the hoistway becomes longer as the floor becomes higher. There are problems such as complicated wiring work and high costs.

前記レバー付きのリミットスイッチは機械的な構成部品であるため、各種トラブルが生じ易く、動作信頼性に問題がある。またそのレバー付きリミットスイッチを動作させるためのスイッチカムを乗りかごに設置する必要があるため、その設置作業が煩雑である。 Since the limit switch with a lever is a mechanical component, various troubles are likely to occur and there is a problem in operation reliability. Further, since it is necessary to install a switch cam for operating the limit switch with lever on the car, the installation work is complicated.

本発明の目的は、このような従来技術の欠点を解消し、動作信頼性が高く、設置作業や保守作業の危険性が少なく、配線を短くすることができるエレベータを提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator that can eliminate such drawbacks of the prior art, has high operational reliability, has a low risk of installation work and maintenance work, and can shorten wiring.

前記目的を達成するために本発明の第１の手段は、
乗りかごの上昇ならびに降下を調整する調速機と、
その調速機の駆動側プーリと従動側プーリの間に掛け渡されて、前記乗りかごの昇降動作に伴って循環するエンドレス状の調速機ロープを備えたエレベータにおいて、
前記調速機ロープの所定の位置に最上階検出用検出体と最下階検出用検出体を取り付け、
前記最上階検出用検出体の到来を検出する最上階検出用センサーと前記最下階検出用検出体の到来を検出する最下階検出用センサーを、前記調速機ロープの循環経路上に設置して、
前記最上階検出用センサーならびに最下階検出用センサーからの検出信号に基づいて、前記調速機の駆動動作を制御する制御部を設けて、
前記最上階検出用センサーによる前記最上階検出用検出体の検出、ならびに前記最下階検出用センサーによる前記最下階検出用検出体の検出に基づいて、前記制御部により前記調速機の駆動動作を制御することを特徴とするものである。 In order to achieve the above object, the first means of the present invention includes:
A governor that adjusts the ascent and descent of the car,
In an elevator provided with an endless speed governor rope that is stretched between a driving pulley and a driven pulley of the speed governor and circulates along with the lifting and lowering operation of the car,
A detector for detecting the uppermost floor and a detector for detecting the lowermost floor are attached to a predetermined position of the governor rope,
A top floor detection sensor for detecting the arrival of the top floor detection object and a bottom floor detection sensor for detecting the arrival of the bottom floor detection body are installed on the circulation path of the governor rope. do it,
Based on detection signals from the uppermost floor detection sensor and the lowermost floor detection sensor, a control unit for controlling the driving operation of the governor is provided,
Based on detection of the detection object for detecting the highest floor by the sensor for detecting the highest floor, and detection of the detection object for detection of the lowest floor by the sensor for detecting the lowest floor, the controller drives the governor. The operation is controlled.

本発明の第２の手段は前記第１の手段において、
前記最上階検出用検出体ならびに最下階検出用検出体は、前記乗りかごが最上階または最下階に着床する前であることを検出して乗りかごの移動速度を減速するための減速域検出部を有していることを特徴とするものである。 According to a second means of the present invention, in the first means,
The uppermost floor detection body and the lowermost floor detection body detect that the car is before landing on the uppermost floor or the lowermost floor and decelerate to reduce the moving speed of the car. It has a zone detection part.

本発明の第３の手段は前記第１または第２の手段において、
前記最上階検出用検出体ならびに最下階検出用検出体は、前記乗りかごが最上階または最下階に着たことを検出して乗りかごを停止するための停止域検出部を有していることを特徴とするものである。 A third means of the present invention is the first or second means,
The detection object for detecting the top floor and the detection object for detecting the bottom floor have a stop area detection unit for detecting that the car has arrived on the top floor or the bottom floor and stopping the car. It is characterized by being.

本発明の第４の手段は前記第１ないし第３の手段において、
前記最上階検出用検出体ならびに最下階検出用検出体は、前記乗りかごが最上階または最下階を行き過ぎたことを検出して乗りかごを停止するための行き過ぎ域検出部を有していることを特徴とするものである。 A fourth means of the present invention is the first to third means,
The detection unit for detecting the top floor and the detection unit for detecting the bottom floor have an overshoot area detection unit for detecting that the car has passed the top floor or the bottom floor and stopping the car. It is characterized by being.

本発明の第５の手段は前記第１ないし第４の手段において、
前記最上階検出用検出体ならびに最下階検出用検出体は、
前記乗りかごが最上階または最下階に着床する前であることを検出して乗りかごの移動速度を減速するための減速域検出部と、
前記乗りかごが最上階または最下階に着たことを検出して乗りかごを停止するための停止域検出部と、
前記乗りかごが最上階または最下階を行き過ぎたことを検出して乗りかごを停止するための行き過ぎ域検出部を有していることを特徴とするものである。 A fifth means of the present invention is the first to fourth means,
The detection body for detecting the top floor and the detection body for detecting the bottom floor are:
A deceleration area detector for detecting that the car is before landing on the uppermost floor or the lowermost floor and decelerating the moving speed of the car;
A stop area detector for detecting that the car has arrived at the top floor or the bottom floor and stopping the car;
The vehicle has an overshoot area detection unit for detecting that the car has passed the uppermost floor or the lowermost floor and stopping the car.

本発明の第６の手段は前記第５の手段において、
前記減速域検出部と停止域検出部と行き過ぎ域検出部は、前記最上階検出用検出体ならびに最下階検出用検出体の移動方向に沿って設けられていることを特徴とするものである。 According to a sixth means of the present invention, in the fifth means,
The deceleration area detection unit, the stop area detection unit, and the overshoot area detection unit are provided along the moving direction of the uppermost floor detection body and the lowermost floor detection body. .

本発明の第７の手段は前記第１ないし第６の手段において、
前記最上階検出用センサーと最下階検出用センサーが、発光素子と、その発光素子から出射した検出光を受光する受光素子とを有する光センサーで構成され、
前記最上階検出用検出体と最下階検出用検出体が、前記発光素子から出射された検出光を遮蔽する遮蔽体で構成されていることを特徴とするものである。 A seventh means of the present invention is the first to sixth means,
The uppermost floor detection sensor and the lowermost floor detection sensor are composed of an optical sensor having a light emitting element and a light receiving element that receives detection light emitted from the light emitting element,
The uppermost floor detection body and the lowermost floor detection body are formed of a shield that blocks the detection light emitted from the light emitting element.

本発明の第８の手段は前記第７の手段において、
前記最上階検出用検出体ならびに最下階検出用検出体を構成する遮蔽体が、
前記乗りかごが最上階または最下階に着床する前であることを検出して乗りかごの移動速度を減速するための減速域検出部と、
前記乗りかごが最上階または最下階に着たことを検出して乗りかごを停止するための停止域検出部と、
前記乗りかごが最上階または最下階を行き過ぎたことを検出して乗りかごを停止するための行き過ぎ域検出部を、前記最上階検出用検出体ならびに最下階検出用検出体の移動方向に沿って階段状に設け、
前記最上階検出用センサーならびに最下階検出用センサーに、
前記減速域検出部を検出するための第１の発光素子−受光素子対と、
前記停止域検出部を検出するための第２の発光素子−受光素子対と、
前記行き過ぎ域検出部を検出するための第３の発光素子−受光素子対が、それぞれ設けられていることを特徴とするものである。 The eighth means of the present invention is the seventh means,
The shield constituting the detection body for detecting the uppermost floor and the detection body for detecting the lowermost floor,
A deceleration area detector for detecting that the car is before landing on the uppermost floor or the lowermost floor and decelerating the moving speed of the car;
A stop area detector for detecting that the car has arrived at the top floor or the bottom floor and stopping the car;
An overshoot area detecting unit for detecting that the car has passed the uppermost floor or the lowermost floor and stopping the car is provided in a moving direction of the uppermost floor detecting body and the lowermost floor detecting body. Along the staircase,
In the top floor detection sensor and the bottom floor detection sensor,
A first light-emitting element-light-receiving element pair for detecting the deceleration area detector;
A second light-emitting element-light-receiving element pair for detecting the stop area detector;
A third light emitting element-light receiving element pair for detecting the overshoot area detecting unit is provided, respectively.

本発明の第９の手段は前記第１ないし第８の手段において、
前記最上階検出用センサーと最下階検出用センサーが、前記調速機の駆動側プーリ付近に設置されていることを特徴とするものである。 A ninth means of the present invention is the first to eighth means,
The uppermost floor detection sensor and the lowermost floor detection sensor are installed in the vicinity of a driving pulley of the governor.

本発明の第１０の手段は前記第９の手段において、
前記駆動側プーリを付設した調速機と、前記最上階検出用センサーならびに最下階検出用センサーと、前記最上階検出用センサーならびに最下階検出用センサーからの検出信号を入力して前記調速機に駆動制御信号を出力する制御部が、前記乗りかごの昇降路から区画された機械室内に設置されていることを特徴とするものである。 The tenth means of the present invention is the ninth means,
The speed governor provided with the drive pulley, the uppermost floor detection sensor and the lowermost floor detection sensor, and detection signals from the uppermost floor detection sensor and the lowermost floor detection sensor are input to input the speed control device. A control unit that outputs a drive control signal to the speed machine is installed in a machine room partitioned from the hoistway of the car.

本発明の第１１の手段は前記第１ないし第８の手段において、
前記調速機の従動側プーリが前記乗りかごの昇降路内に設けられ、その従動側プーリ付近に前記最上階検出用センサーと最下階検出用センサーが設置されていることを特徴とするものである。 The eleventh means of the present invention is the first to eighth means,
A driven pulley of the governor is provided in a hoistway of the car, and the uppermost floor detection sensor and the lowermost floor detection sensor are installed in the vicinity of the driven pulley. It is.

本発明の第１２の手段は前記第１１の手段において、
前記従動側プーリにガバナウェイトが連結されていることを特徴とするものである。 The twelfth means of the present invention is the eleventh means,
A governor weight is connected to the driven pulley.

本発明の第１３の手段は前記第１１の手段において、
前記昇降路の高さの半分より下側の位置に前記制御部が設けられていることを特徴とするものである。 The thirteenth means of the present invention is the eleventh means,
The control unit is provided at a position below half the height of the hoistway.

本発明は前述のような構成になっており、
請求項１に記載のように、調速機ロープの所定の位置に最上階検出用検出体と最下階検出用検出体を取り付け、最上階検出用検出体の到来を検出する最上階検出用センサーと前記最下階検出用検出体の到来を検出する最下階検出用センサーを、調速機ロープの循環経路上に設置して、
最上階検出用センサーならびに最下階検出用センサーからの検出信号に基づいて、調速機の駆動動作を制御する制御部を設けて、
最上階検出用センサーによる最上階検出用検出体の検出、ならびに最下階検出用センサーによる最下階検出用検出体の検出に基づいて、制御部により調速機の駆動動作を制御する構成になっている。 The present invention is configured as described above,
The uppermost floor detection detector and the lowermost floor detection detector are attached to a predetermined position of the governor rope, and the arrival of the uppermost floor detection detector is detected. A sensor and a sensor for detecting the lowest floor for detecting the arrival of the detector for detecting the lowest floor are installed on the circulation path of the governor rope,
Based on the detection signals from the top floor detection sensor and the bottom floor detection sensor, a control unit for controlling the drive operation of the governor is provided.
Based on the detection of the detection object for the top floor detection by the sensor for detection of the top floor and the detection object for detection of the bottom floor by the sensor for detection of the bottom floor, the control unit controls the driving operation of the governor. It has become.

そのため、トラブルが生じ易いリミットスイッチが不要となり、またそのリミットスイッチのレバーを動かすためのスイッチカムを乗りかごに設けたりする必要がなく、動作信頼性の向上ならびに構成の簡略化を図ることができる。 This eliminates the need for a trouble-prone limit switch and eliminates the need to provide a switch cam for moving the lever of the limit switch on the car, improving operational reliability and simplifying the configuration. .

請求項２に記載のように、最上階検出用検出体ならびに最下階検出用検出体が、乗りかごが最上階または最下階に着床する前であることを検出して乗りかごの移動速度を減速するための減速域検出部を有しているため、乗りかごが最上階または最下階に着床する前に自動的に減速して、階への着床をスムーズに行なうことができる。 As described in claim 2, the detection object for detecting the top floor and the detection object for detecting the bottom floor detect that the car is before landing on the top floor or the bottom floor and move the car. Since it has a deceleration area detector for reducing the speed, the car can automatically decelerate before landing on the top floor or the bottom floor to smoothly land on the floor. it can.

請求項３に記載のように、最上階検出用検出体ならびに最下階検出用検出体が、乗りかごが最上階または最下階に着たことを検出して乗りかごを停止するための停止域検出部を有しているため、乗りかごを最上階または最下階に自動的に着床することができる。 The stop for stopping the car when the top-floor detection body and the bottom-floor detection body detect that the car has arrived at the top floor or the bottom floor as described in claim 3. Since the area detection unit is provided, the car can be automatically landed on the top floor or the bottom floor.

請求項４に記載のように、最上階検出用検出体ならびに最下階検出用検出体が、乗りかごが最上階または最下階を行き過ぎたことを検出して乗りかごを停止するための行き過ぎ域検出部を有しているため、万が一、乗りかごが最上階または最下階を行き過ぎても、建物の天井もしくは緩衝器を圧縮させてしまうような事態を未然に防止することができる。 As described in claim 4, the detection object for detecting the uppermost floor and the detection object for detecting the lowermost floor detect that the car has passed the uppermost floor or the lowermost floor, and overshoot for stopping the car. Since the area detection unit is provided, it is possible to prevent a situation in which the ceiling of the building or the shock absorber is compressed even if the car goes over the top floor or the bottom floor.

請求項５に記載のように、最上階検出用検出体ならびに最下階検出用検出体が、
乗りかごが最上階または最下階に着床する前であることを検出して乗りかごの移動速度を減速するための減速域検出部と、
乗りかごが最上階または最下階に着たことを検出して乗りかごを停止するための停止域検出部と、
乗りかごが最上階または最下階を行き過ぎたことを検出して乗りかごを停止するための行き過ぎ域検出部を有しているため、最上階または最下階での乗りかごの着床をスムーズにかつ安全に行なうことができる。 As described in claim 5, the detection body for detecting the highest floor and the detection body for detecting the lowest floor are:
A deceleration area detection unit for detecting that the car is before landing on the top floor or the bottom floor and decelerating the moving speed of the car;
A stop area detection unit for detecting that the car has arrived at the top floor or the bottom floor and stopping the car;
Since it has an overshoot area detector that detects when the car has passed the top floor or the bottom floor and stops the car, it is possible to smooth the landing of the car on the top floor or the bottom floor. It can be done safely and safely.

請求項６に記載のように、減速域検出部と停止域検出部と行き過ぎ域検出部が、最上階検出用検出体ならびに最下階検出用検出体の移動方向に沿って設けられているから、乗りかごの減速、最上階または最下階への着床ならびに最上階または最下階を行き過ぎたときの乗りかごの停止を時系列的に行なうことができる。 As described in claim 6, the deceleration region detection unit, the stop region detection unit, and the overshoot region detection unit are provided along the moving direction of the detection object for detecting the highest floor and the detection object for detecting the lowest floor. It is possible to time-sequentially decelerate the car, land on the top floor or the bottom floor, and stop the car when the top floor or bottom floor is exceeded.

請求項７に記載のように、最上階検出用センサーと最下階検出用センサーが光センサーで構成され、最上階検出用検出体と最下階検出用検出体が遮蔽体で構成されているから、構成が簡単で、安価で、保守点検も容易である。 As described in claim 7, the uppermost floor detection sensor and the lowermost floor detection sensor are configured by an optical sensor, and the uppermost floor detection detector and the lowermost floor detection sensor are configured by a shield. Therefore, the configuration is simple, inexpensive, and easy to maintain.

請求項８に記載のように、最上階検出用検出体ならびに最下階検出用検出体を構成する遮蔽体が、
乗りかごが最上階または最下階に着床する前であることを検出して乗りかごの移動速度を減速するための減速域検出部と、
乗りかごが最上階または最下階に着たことを検出して乗りかごを停止するための停止域検出部と、
乗りかごが最上階または最下階を行き過ぎたことを検出して乗りかごを停止するための行き過ぎ域検出部を、最上階検出用検出体ならびに最下階検出用検出体の移動方向に沿って階段状に設け、
最上階検出用センサーならびに最下階検出用センサーに、減速域検出部を検出するための第１の発光素子−受光素子対と、停止域検出部を検出するための第２の発光素子−受光素子対と、前記行き過ぎ域検出部を検出するための第３の発光素子−受光素子対がそれぞれ設けられているから、
最上階または最下階での乗りかごの着床をスムーズにかつ安全に行なうことができ、乗りかごの減速、最上階または最下階への着床ならびに最上階または最下階を行き過ぎたときの乗りかごの停止を時系列的に行なえ、しかも構成が簡単で、安価である。 As described in claim 8, the shield constituting the detection body for detecting the uppermost floor and the detection body for detecting the lowermost floor,
A deceleration area detection unit for detecting that the car is before landing on the top floor or the bottom floor and decelerating the moving speed of the car;
A stop area detection unit for detecting that the car has arrived at the top floor or the bottom floor and stopping the car;
An overshoot area detection unit for detecting that the car has passed the top floor or the bottom floor and stopping the car is provided along the moving direction of the top floor detection body and the bottom floor detection body. Provided in a staircase,
The first light emitting element-light receiving element pair for detecting the deceleration area detecting unit and the second light emitting element-detecting light for detecting the stop area detecting unit in the top floor detecting sensor and the bottom floor detecting sensor. Since the element pair and the third light emitting element-light receiving element pair for detecting the overshoot area detection unit are provided,
The car can be smoothly and safely placed on the top floor or the bottom floor. When the car is slowed down, the floor is landed on the top or bottom floor, and the top or bottom floor is overrun. The car can be stopped in a time series, and the configuration is simple and inexpensive.

請求項９に記載のように、最上階検出用センサーと最下階検出用センサーが、調速機の駆動側プーリ付近に設置されているから、最上階検出用検出体ならびに最下階検出用検出体を支持している調速機ロープの振れが少なく、そのために検出の信頼性が高い。 Since the top floor detection sensor and the bottom floor detection sensor are installed in the vicinity of the driving pulley of the governor as described in claim 9, the top floor detection detector and the bottom floor detection The governor rope supporting the detection body has little swing, and therefore the detection reliability is high.

請求項１０に記載のように、駆動側プーリを付設した調速機と、最上階検出用センサーならびに最下階検出用センサーと、最上階検出用センサーならびに最下階検出用センサーからの検出信号を入力して調速機に駆動制御信号を出力する制御部が、機械室内に設置されているから、前記センサーと制御部を接続する配線の長さを乗りかごの昇降高さに関係なく、すなわち昇降路内の配線を考慮しないで、短くすることができ、配線作業も簡便で、しかも前記センサーの保守点検作業の危険性が少ない。 11. A speed governor provided with a driving pulley, a top floor detection sensor and a bottom floor detection sensor, and detection signals from the top floor detection sensor and the bottom floor detection sensor as claimed in claim 10. Since the control unit that outputs the drive control signal to the governor is installed in the machine room, the length of the wiring connecting the sensor and the control unit is not related to the elevation height of the car, That is, it can be shortened without considering the wiring in the hoistway, the wiring work is simple, and the risk of maintenance and inspection work of the sensor is small.

請求項１１に記載のように、最上階検出用センサーと最下階検出用センサーが、調速機の従動側プーリ付近に設置されているから、最上階検出用検出体ならびに最下階検出用検出体を支持している調速機ロープの振れが少なく、そのために検出の信頼性が高い。 Since the sensor for detecting the uppermost floor and the sensor for detecting the lowermost floor are installed in the vicinity of the driven pulley of the governor, the detector for detecting the uppermost floor and for detecting the lowermost floor are provided. The governor rope supporting the detection body has little swing, and therefore the detection reliability is high.

請求項１２に記載のように、従動側プーリにガバナウェイトが連結されているから調速機ロープの緊張状態が維持され、さらに最上階検出用検出体ならびに最下階検出用検出体を支持している調速機ロープの振れが少なく、さらに検出の信頼性が高い。 As described in claim 12, since the governor weight is connected to the driven pulley, the tension state of the governor rope is maintained, and the uppermost floor detection body and the lowermost floor detection body are supported. The governor rope has little run-out, and the detection reliability is high.

請求項１３に記載のように、昇降路の高さの半分より下側の位置に制御部が設けられているから、前記センサーと制御部を接続する配線の長さを乗りかごの昇降高さに関係なく短くすることができ、配線作業も簡便である。 Since the control part is provided in the position below the half of the height of the hoistway as described in Claim 13, the length of the wiring which connects the said sensor and control part is set to the raising / lowering height of a car. It can be shortened regardless of whether the wiring work is simple.

本発明の第１実施形態に係るエレベータの概略構成図である。1 is a schematic configuration diagram of an elevator according to a first embodiment of the present invention. この第１実施形態に係るエレベータにおいて、検出体がセンサーに到達する直前の状態を示した斜視図である。In the elevator which concerns on this 1st Embodiment, it is the perspective view which showed the state just before a detection body arrives at a sensor. その検出体がセンサーに到達する直前の状態を示した上面図である。It is the top view which showed the state just before the detection body reaches | attains a sensor. 本実施形態における調速機駆動側プーリ付近でのセンサーの支持構造を示す一部正面図である。It is a partial front view which shows the support structure of the sensor in the vicinity of the governor drive side pulley in this embodiment. 本発明の第２実施形態に係るエレベータの概略構成図である。It is a schematic block diagram of the elevator which concerns on 2nd Embodiment of this invention. 本発明の第３実施形態に係るエレベータを説明するための一部正面図である。It is a partial front view for demonstrating the elevator which concerns on 3rd Embodiment of this invention. 従来のエレベータの概略構成図である。It is a schematic block diagram of the conventional elevator.

次に本発明の各実施形態について、図面とともに説明する。
（第１実施形態）
図１は、本発明の第１実施形態に係るエレベータの概略構成図である。 Next, each embodiment of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a schematic configuration diagram of an elevator according to a first embodiment of the present invention.

同図において、１はエレベータの乗りかごで、昇降路内に立設されたかご用ガイドレール（図示せず）に案内されて昇降する。２は機械室１０内に設置された調速機（図示せず）の駆動軸に付設されている駆動側プーリ、３はその調速機駆動側プーリ２と従動側プーリであるガバナプーリ２１に巻き掛けられたエンドレス状の調速機ロープである。 In the figure, reference numeral 1 denotes an elevator car, which is raised and lowered by being guided by a car guide rail (not shown) standing in the hoistway. Reference numeral 2 denotes a driving pulley attached to a drive shaft of a speed governor (not shown) installed in the machine room 10, and reference numeral 3 denotes a governor pulley 21 that is a governor driving pulley 2 and a driven pulley. It is a hung endless governor rope.

６ａは前記調速機側駆動プーリ２の付近に取り付けられて、乗りかご１が最上階付近に到来したことを検出する最上階検出用センサー、６ｂは前記調速機側駆動プーリ２の付近に取り付けられて、乗りかご１が最下階付近に到来したことを検出する最下階検出用センサーである。この最上階検出用センサー６ａと最下階検出用センサー６ｂは、間に調速機側駆動プーリ２を介して、前記調速機ロープ３と対向するように設置されている。 6a is attached to the vicinity of the governor side drive pulley 2, and detects the top floor detection sensor for detecting that the car 1 has arrived near the top floor, and 6b is in the vicinity of the governor side drive pulley 2. A sensor for detecting the lowermost floor that is attached and detects that the car 1 has arrived near the lowermost floor. The uppermost floor detection sensor 6a and the lowermost floor detection sensor 6b are installed so as to face the governor rope 3 with the governor side drive pulley 2 therebetween.

すなわち、両センサー６ａ，６ｂは機械室１０内における調速機ロープ３の循環経路上に設置されていることになり、両センサー６ａ，６ｂの検出信号は、同じ機械室１０内に設置されている制御部９に入力される。 That is, both sensors 6a and 6b are installed on the circulation path of the governor rope 3 in the machine room 10, and the detection signals of both sensors 6a and 6b are installed in the same machine room 10. Is input to the control unit 9.

７ａは調速機ロープ３に取り付けられた最上階検出用検出体、７ｂは最下階検出用検出体である。乗りかご１が最上階付近に来たときに前記最上階検出用検出体７ａが最上階検出用センサー６ａで検出され、乗りかご１が最下階付近に来たときに前記最下階検出用検出体７ｂが最下階検出用センサー６ｂで検出されように、前記検出体７ａ，７ｂは図１に示すように調速機ロープ３の上下反対位置に取り付けられる。 7a is a detection object for detecting the highest floor attached to the governor rope 3, and 7b is a detection object for detecting the lowest floor. When the car 1 comes near the top floor, the top floor detection body 7a is detected by the top floor detection sensor 6a, and when the car 1 comes near the bottom floor, the bottom floor detection body 7a is detected. As shown in FIG. 1, the detectors 7a and 7b are attached to the top and bottom of the governor rope 3 so that the detector 7b is detected by the lowest floor detection sensor 6b.

図２は前記検出体７ａ，７ｂがセンサー６ａ，６ｂに到達する直前の状態を示した斜視図、図３は前記検出体７ａ，７ｂがセンサー６ａ，６ｂに到達する直前の状態を示した上面図である。 FIG. 2 is a perspective view showing a state immediately before the detection bodies 7a and 7b reach the sensors 6a and 6b, and FIG. 3 is a top view showing a state immediately before the detection bodies 7a and 7b reach the sensors 6a and 6b. FIG.

図３に示すようにセンサー本体１１は平面形状がコの字形をしており、内側に検出体７ａ，７ｂが通過する中空部１２が形成されている。そしてこの中空部１２に面したセンサー本体１１の内面には第１発光素子１３ａ、第２発光素子１３ｂ、第３発光素子１３ｃが所定の間隔をおいて並設されている。そして前記中空部１２を介して前記第１発光素子１３ａ、第２発光素子１３ｂ、第３発光素子１３ｃと対向するように第１受光素子１４ａ、第２受光素子１４ｂ、第３受光素子１４ｃが並設されて、所謂、３光軸センサーを構成している。 As shown in FIG. 3, the sensor body 11 has a U-shaped planar shape, and a hollow portion 12 through which the detection bodies 7a and 7b pass is formed inside. A first light emitting element 13a, a second light emitting element 13b, and a third light emitting element 13c are arranged side by side at a predetermined interval on the inner surface of the sensor body 11 facing the hollow portion 12. The first light receiving element 14a, the second light receiving element 14b, and the third light receiving element 14c are arranged in parallel so as to face the first light emitting element 13a, the second light emitting element 13b, and the third light emitting element 13c through the hollow portion 12. So as to constitute a so-called three optical axis sensor.

乗りかご１の昇降に伴って、前記センサー６ａ，６ｂの中空部１２内に前記検出体７ａ，７ｂが挿入される形態となっている。前記検出体７ａ，７ｂは例えば金属板や合成樹脂板などの不透明な光遮蔽体で構成され、図２に示すように側面形状がほぼ長方形をしており、それの上部に階段状の切欠部が設けられている。 As the car 1 moves up and down, the detection bodies 7a and 7b are inserted into the hollow portions 12 of the sensors 6a and 6b. The detection bodies 7a and 7b are made of an opaque light shielding body such as a metal plate or a synthetic resin plate, and have a substantially rectangular side surface shape as shown in FIG. Is provided.

検出体７ａ，７ｂの下端部１５は、その全幅にわたって延びている。一方、検出体７ａ，７ｂの上端部には、減速域検出部１６と停止域検出部１７と行き過ぎ域検出部１８が、それぞれ設けられている。 The lower ends 15 of the detection bodies 7a and 7b extend over the entire width. On the other hand, a deceleration area detector 16, a stop area detector 17, and an overshoot area detector 18 are provided at the upper ends of the detection bodies 7a and 7b, respectively.

前記減速域検出部１６は、乗りかご１の移動速度を減速させるためのスローダウンスイッチ(ＳＤＳ)の機能を有している。
前記停止域検出部１７は、乗りかご１を所望の着床位置に止めるスイッチの機能を有し、最上階検出用検出体７ａではアップリミットスイッチ(ＵＬＳ)の機能、最上階検出用検出体７ｂではダウンリミットスイッチ(ＤＬＳ)の機能を有している。
前記行き過ぎ域検出部１８は、乗りかご１が終端階を行き過ぎたことを検出し、建物の天井もしくは緩衝器を圧縮させてしまわぬように、乗りかご１がそれ以上移動しないように止めるファイナルリミットスイッチ(ＦＬＳ)の機能を有している。 The deceleration area detector 16 has a function of a slow down switch (SDS) for decelerating the moving speed of the car 1.
The stop area detection unit 17 has a function of a switch for stopping the car 1 at a desired landing position. In the uppermost detection detector 7a, the function of an up limit switch (ULS), the uppermost detection detector 7b is provided. Has a function of a down limit switch (DLS).
The overshoot area detection unit 18 detects that the car 1 has passed the end floor and stops the car 1 from moving further so as not to compress the ceiling or shock absorber of the building. It has a switch (FLS) function.

これら減速域検出部１６、停止域検出部１７、行き過ぎ域検出部１８は各々の機能により、図２に示すように下端部１５からの高さが、減速域検出部１６＞停止域検出部１７＞行き過ぎ域検出部１８の関係にあり、従って全体的に階段状になっている。 As shown in FIG. 2, the deceleration area detection unit 16, the stop area detection unit 17, and the overshooting area detection unit 18 have a height from the lower end part 15 as shown in FIG. > The overshooting area detection unit 18 has a relationship, and therefore, it is stepped as a whole.

本実施形態の場合、前記最上階検出用センサー６ａと最下階検出用センサー６ｂ、ならびに前記最上階検出用検出体７ａと最下階検出用検出体７ｂは、それぞれ同一形状をしている。 In the present embodiment, the uppermost floor detection sensor 6a and the lowermost floor detection sensor 6b, and the uppermost floor detection sensor 7a and the lowermost floor detection sensor 7b have the same shape.

図３に示すように、第１発光素子１３ａと第１受光素子１４ａの対（第１の発光素子−受光素子対）が減速域検出部１６と、第２発光素子１３ｂと第２受光素子１４ｂの対（第２の発光素子−受光素子対）が停止域検出部１７と、第３発光素子１３ｃと第３受光素子１４ｃの対（第３の発光素子−受光素子対）が行き過ぎ域検出部１８と対向するように配置されている。 As shown in FIG. 3, the pair of the first light-emitting element 13a and the first light-receiving element 14a (first light-emitting element-light-receiving element pair) is the deceleration area detector 16, the second light-emitting element 13b, and the second light-receiving element 14b. Pair (second light emitting element-light receiving element pair) is a stop area detecting unit 17, and a pair of third light emitting element 13c and third light receiving element 14c (third light emitting element-light receiving element pair) is an overshoot area detecting unit. 18 is arranged to face 18.

乗りかご１の上昇過程において、最上階検出用センサー６ａに最上階検出用検出体７ａが近づく前は、各発光素子１３ａ〜１３ｃから出射した検出光１９（図３参照）は、それぞれの受光素子１４ａ〜１４ｃに受光されている。従って、第１受光素子１４ａ、第２受光素子１４ｂ、第３受光素子１４ｃは全てＯＮ状態となっている。 In the ascending process of the car 1, before the top floor detection sensor 7a approaches the top floor detection sensor 6a, the detection light 19 (see FIG. 3) emitted from the light emitting elements 13a to 13c is received by each light receiving element. Light is received by 14a to 14c. Accordingly, the first light receiving element 14a, the second light receiving element 14b, and the third light receiving element 14c are all in the ON state.

乗りかご１の上昇に伴って図２に示すように最上階検出用検出体７ａが最上階検出用センサー６ａに近づき、減速域検出部１６によって発光素子１３ａからの検出光１９を遮光すると、第１受光素子１４ａのみＯＦＦ状態となり（第２受光素子１４ｂと第３受光素子１４ｃはＯＮ状態を維持）、この変化によって生成した検出信号は最上階検出用センサー６ａから制御部９に入力される。 As the car 1 rises, as shown in FIG. 2, when the top floor detection body 7 a approaches the top floor detection sensor 6 a and the deceleration area detection unit 16 blocks the detection light 19 from the light emitting element 13 a, Only one light receiving element 14a is turned off (the second light receiving element 14b and the third light receiving element 14c are kept on), and a detection signal generated by this change is input from the top floor detection sensor 6a to the control unit 9.

そして制御部９では乗りかご１が最上階に着床する前であることを判断し、乗りかご１の上昇速度を減速する減速信号を調速機（図示せず）に出力して、乗りかご１の速度を減速する。 Then, the controller 9 determines that the car 1 is before landing on the top floor, and outputs a deceleration signal for decelerating the ascending speed of the car 1 to a governor (not shown). Decrease the speed of 1.

次に停止域検出部１７（この最上階検出用検出体７ａの場合、前述のように停止域検出部１７はアップリミットスイッチ(ＵＬＳ)の機能を有している）によって発光素子１３ｂからの検出光１９が遮光されると、第２受光素子１４ｂもＯＦＦ状態となり（第１受光素子１４ａは既にＯＦＦ状態、第３受光素子１４ｃはＯＮ状態を維持）、この変化によって生成した検出信号は最上階検出用センサー６ａから制御部９に入力される。 Next, detection from the light emitting element 13b is performed by the stop area detector 17 (in the case of the detection object 7a for the highest floor, the stop area detector 17 has the function of an up limit switch (ULS) as described above). When the light 19 is blocked, the second light receiving element 14b is also turned off (the first light receiving element 14a is already in the off state and the third light receiving element 14c is kept in the on state). Input from the detection sensor 6 a to the controller 9.

そして制御部９では乗りかご１が最上階に着床したことを判断し、乗りかご１の上昇を停止する停止信号を調速機（図示せず）に出力して、乗りかご１を着床する。 Then, the control unit 9 determines that the car 1 has landed on the top floor, and outputs a stop signal to stop the ascent of the car 1 to a speed governor (not shown) to land the car 1. To do.

ここで何らかの原因で乗りかご１が上昇を続けると、行き過ぎ域検出部１８によって発光素子１３ｃからの検出光１９が遮光されて、第１受光素子１４ａ、第２受光素子１４ｂ、第３受光素子１４ｃの全てがＯＦＦ状態となり、この変化によって生成した検出信号は最上階検出用センサー６ａから制御部９に入力される。 Here, if the car 1 continues to rise for some reason, the detection light 19 from the light emitting element 13c is shielded by the overshoot area detector 18, and the first light receiving element 14a, the second light receiving element 14b, and the third light receiving element 14c. Are all turned off, and the detection signal generated by this change is input to the control unit 9 from the top floor detection sensor 6a.

そして制御部９では乗りかご１が最上階を行き過ぎたことを判断し、乗りかご１の上昇を緊急停止する緊急停止信号を調速機（図示せず）に出力して、乗りかご１がこれ以上上昇しないように直ちに停止する。 Then, the control unit 9 determines that the car 1 has gone over the top floor, and outputs an emergency stop signal for urgently stopping the ascent of the car 1 to the speed governor (not shown). Stop immediately so as not to rise any further.

また、乗りかご１の降下過程において、最下階検出用センサー６ｂに最下階検出用検出体７ｂが近づく前は、各発光素子１３ａ〜１３ｃから出射した検出光１９（図３参照）は、それぞれの受光素子１４ａ〜１４ｃに受光されている。従って、第１受光素子１４ａ、第２受光素子１４ｂ、第３受光素子１４ｃは全てＯＮ状態となっている。 Further, in the descending process of the car 1, before the lowermost floor detection sensor 7b approaches the lowermost floor detection sensor 6b, the detection light 19 (see FIG. 3) emitted from the light emitting elements 13a to 13c is Light is received by each of the light receiving elements 14a to 14c. Accordingly, the first light receiving element 14a, the second light receiving element 14b, and the third light receiving element 14c are all in the ON state.

乗りかご１の降下に伴って図２に示すように最下階検出用検出体７ｂが最下階検出用センサー６ｂに近づき、減速域検出部１６によって発光素子１３ａからの検出光１９を遮光すると、第１受光素子１４ａのみＯＦＦ状態となり（第２受光素子１４ｂと第３受光素子１４ｃはＯＮ状態を維持）、この変化によって生成した検出信号は最上階検出用センサー６ａから制御部９に入力される。 As the car 1 descends, as shown in FIG. 2, the lowest floor detection body 7b approaches the lowest floor detection sensor 6b, and the deceleration area detector 16 blocks the detection light 19 from the light emitting element 13a. Only the first light receiving element 14a is in the OFF state (the second light receiving element 14b and the third light receiving element 14c are kept in the ON state), and the detection signal generated by this change is input from the top floor detection sensor 6a to the control unit 9. The

そして制御部９では乗りかご１が最下階に着床する前であることを判断し、乗りかご１の降下速度を減速する減速信号を調速機（図示せず）に出力して、乗りかご１の速度を減速する。 Then, the control unit 9 determines that the car 1 is before landing on the lowest floor, and outputs a deceleration signal for decelerating the descending speed of the car 1 to a governor (not shown). Decrease the speed of the car 1.

次に停止域検出部１７（この最下階検出用検出体７ｂの場合、前述のように停止域検出部１７はダウンリミットスイッチ(ＤＬＳ)の機能を有している）によって発光素子１３ｂからの検出光１９が遮光されると、第２受光素子１４ｂもＯＦＦ状態となり（第１受光素子１４ａは既にＯＦＦ状態、第３受光素子１４ｃはＯＮ状態を維持）、この変化によって生成した検出信号は最下階検出用センサー６ｂから制御部９に入力される。 Next, the stop area detector 17 (in the case of the detection object 7b for the lowest floor, the stop area detector 17 has a function of a down limit switch (DLS) as described above) from the light emitting element 13b. When the detection light 19 is blocked, the second light receiving element 14b is also turned off (the first light receiving element 14a has already been turned off and the third light receiving element 14c has been kept on), and the detection signal generated by this change is the highest. Input to the control unit 9 from the lower floor detection sensor 6b.

そして制御部９では乗りかご１が最下階に着床したことを判断し、乗りかご１の降下を停止する停止信号を調速機（図示せず）に出力して、乗りかご１を着床する。 The control unit 9 determines that the car 1 has landed on the lowest floor, outputs a stop signal to stop the descent of the car 1 to the governor (not shown), and arrives at the car 1. To floor.

ここで何らかの原因で乗りかご１が降下を続けると、行き過ぎ域検出部１８によって発光素子１３ｃからの検出光１９が遮光されて、第１受光素子１４ａ、第２受光素子１４ｂ、第３受光素子１４ｃの全てがＯＦＦ状態となり、この変化によって生成した検出信号は最下階検出用センサー６ｂから制御部９に入力される。 Here, if the car 1 continues to descend for some reason, the detection light 19 from the light emitting element 13c is shielded by the overshoot area detector 18, and the first light receiving element 14a, the second light receiving element 14b, and the third light receiving element 14c. Are turned off, and the detection signal generated by this change is input to the control unit 9 from the lowest floor detection sensor 6b.

そして制御部９では乗りかご１が最下階を行き過ぎたことを判断し、乗りかご１の降下を緊急停止する緊急停止信号を調速機（図示せず）に出力して、乗りかご１がこれ以上降下しないように直ちに停止する。 Then, the control unit 9 determines that the car 1 has passed the lowest floor, outputs an emergency stop signal for emergency stop of the lowering of the car 1 to the governor (not shown), and the car 1 Stop immediately so as not to descend any further.

図４は、調速機の駆動側プーリ２付近でのセンサー６ａ，６ｂの支持構造を示す一部正面図である。
同図に示すようにセンサー６ａ，６ｂは調速機駆動側プーリ２を間にして、枠型あるいは箱型のセンサー支持部材２０によって支持されている。このセンサー支持部材２０を図示しない調速機の支持部材として兼用することもできる。この図の状態は、最下階検出用検出体７ｂが最下階検出用センサー６ｂに到達した状態を示している。 FIG. 4 is a partial front view showing a support structure for the sensors 6a and 6b in the vicinity of the driving pulley 2 of the governor.
As shown in the figure, the sensors 6a and 6b are supported by a frame-type or box-type sensor support member 20 with the governor drive side pulley 2 interposed therebetween. The sensor support member 20 can also be used as a support member for a speed governor (not shown). The state of this figure shows a state in which the lowest floor detection body 7b has reached the lowest floor detection sensor 6b.

エレベータの定期点検時は、機械室１０内で制御部９の操作により乗りかご１を高速運転させ、前記センサー６ａ，６ｂと検出体７ａ，７ｂが正常に動作しているかどうかの確認を行なう。 During periodic inspection of the elevator, the car 1 is operated at a high speed by operating the control unit 9 in the machine room 10 to check whether the sensors 6a, 6b and the detectors 7a, 7b are operating normally.

（第２実施形態）
図５は、本発明の第２実施形態に係るエレベータの概略構成図である。本実施形態は機械室が無い場合を示している。 (Second Embodiment)
FIG. 5 is a schematic configuration diagram of an elevator according to the second embodiment of the present invention. This embodiment shows a case where there is no machine room.

同図において、１はエレベータの乗りかごで、昇降路内に立設されたかご用ガイドレール（図示せず）に案内されて昇降する。２はその昇降路の底部付近に設置された調速機に付設された駆動側プーリ、３はその調速機駆動側プーリ２と上方の従動側プーリとの間に巻き掛けられたエンドレス状の調速機ロープである。 In the figure, reference numeral 1 denotes an elevator car, which is raised and lowered by being guided by a car guide rail (not shown) standing in the hoistway. 2 is a driving pulley attached to a speed governor installed near the bottom of the hoistway, and 3 is an endless shape wound between the speed governor driving pulley 2 and an upper driven pulley. It is a governor rope.

６ａは前記調速機駆動側プーリ２の付近に取り付けられ最上階を検出する最上階検出用センサー、６ｂは前記調速機駆動側プーリ２の付近に取り付けられ最下階を検出する最下階検出用センサーで、この最上階検出用センサー６ａならびに最下階検出用センサー６ｂは、間に調速機駆動側プーリ２を介して、前記調速機ロープ３と対向するように設置されている。
図示していないが、前記センサー６ａ、６ｂは、枠型あるいは箱型のセンサー支持部材によって支持されている。 6a is a sensor for detecting the uppermost floor that is attached in the vicinity of the governor driving pulley 2 and 6b is a lowermost floor that is attached in the vicinity of the governor driving pulley 2 and detects the lowermost floor. In the detection sensor, the uppermost floor detection sensor 6a and the lowermost floor detection sensor 6b are installed so as to face the governor rope 3 through the governor driving pulley 2 therebetween. .
Although not shown, the sensors 6a and 6b are supported by a frame-type or box-type sensor support member.

最上階検出用センサー６a及び最下階検出用センサー６ｂの検出信号は、昇降路の側壁２４に設置されている制御部９に入力される。この制御部９は図に示すように、昇降路の高さＨの半分より下側に設置されている。 Detection signals from the top floor detection sensor 6a and the bottom floor detection sensor 6b are input to the control unit 9 installed on the side wall 24 of the hoistway. As shown in the drawing, the control unit 9 is installed below half of the height H of the hoistway.

なお、この制御部９は配線の長さを可及的に短くするため、前記側壁２４の下端部付近あるいは昇降路の底部に設置することも可能である。 The controller 9 can be installed near the lower end of the side wall 24 or at the bottom of the hoistway so as to shorten the length of the wiring as much as possible.

７ａは調速機ロープ３に取り付けられた最上階検出用検出体、７ｂは最下階検出用検出体である。乗りかご１が最上階付近に来たときに前記最上階検出用検出体７ａが最上階検出用センサー６ａで検出され、乗りかご１が最下階付近に来たときに前記最下階検出用検出体７ｂが最下階検出用センサー６ｂで検出されように、前記検出体７ａ，７ｂは図に示すように調速機ロープ３の上下反対位置に取り付けられる。 7a is a detection object for detecting the highest floor attached to the governor rope 3, and 7b is a detection object for detecting the lowest floor. When the car 1 comes near the top floor, the top floor detection body 7a is detected by the top floor detection sensor 6a, and when the car 1 comes near the bottom floor, the bottom floor detection body 7a is detected. The detection bodies 7a and 7b are attached to the top and bottom opposite positions of the governor rope 3 as shown in the figure so that the detection body 7b is detected by the lowest floor detection sensor 6b.

前記センサー６ａ，６ｂと検出体７ａ，７ｂの構成、機能ならびにこれら検出手段に基づく乗りかご１の制御動作などは、前記第１実施形態と同様なので重複する説明は省略する。 Since the configurations and functions of the sensors 6a and 6b and the detection bodies 7a and 7b and the control operation of the car 1 based on these detection means are the same as those in the first embodiment, redundant description is omitted.

エレベータの定期点検時は、エレベータホールにおいて保守用のパソコンの操作により乗りかご１を高速運転させ、前記センサー６ａ，６ｂと検出体７ａ，７ｂが正常に動作しているかどうかの確認を行なう。 During regular inspection of the elevator, the car 1 is operated at a high speed by operating a personal computer for maintenance in the elevator hall, and it is confirmed whether the sensors 6a, 6b and the detectors 7a, 7b are operating normally.

（第３実施形態）
図６は、本発明の第３実施形態に係るエレベータを説明するための一部正面図である。
本実施形態の場合、エンドレス状調速機用ロープ３の下部折り返し部がガバナプーリ２１に掛けられ、さらにガバナプーリ２１にはガバナウエイト２２が連結されている。このガバナプーリ２１とガバナウエイト２２により、調速機用ロープ３の緊張状態が良好に維持されている。ガバナプーリ２１とガバナウエイト２２は、ガバナ支持部材２３により上下方向に揺動可能に支持されている。 (Third embodiment)
FIG. 6 is a partial front view for explaining an elevator according to a third embodiment of the present invention.
In the case of this embodiment, the lower folded portion of the endless speed governor rope 3 is hung on the governor pulley 21, and a governor weight 22 is connected to the governor pulley 21. The governor pulley 21 and the governor weight 22 maintain the tension state of the governor rope 3 well. The governor pulley 21 and the governor weight 22 are supported by a governor support member 23 so as to be swingable in the vertical direction.

前記ガバナプーリ２１の付近には、それを間にして最上階検出用センサー６ａと最下階検出用センサー６ｂが配置され、両センサー６ａ，６ｂはセンサー支持部材２０に支持されている。 In the vicinity of the governor pulley 21, an uppermost floor detection sensor 6a and a lowermost floor detection sensor 6b are disposed therebetween, and both sensors 6a and 6b are supported by a sensor support member 20.

本実施例に係るセンサー６ａ，６ｂは調速機用ロープ３ならびに検出体７ａ，７ｂが挿通できるように筒型をしており、図示していないがそのセンサー６ａ，６ｂの内面に発光素子１３ａ〜１３ｃと受光素子１４ａ〜１４ｃが対になって設置されている。 The sensors 6a and 6b according to the present embodiment are cylindrical so that the governor rope 3 and the detectors 7a and 7b can be inserted. Although not shown, the light emitting element 13a is formed on the inner surface of the sensors 6a and 6b. To 13c and the light receiving elements 14a to 14c are installed in pairs.

本実施例では筒型のセンサー６ａ，６ｂを用いたが、図２に示すようなコの字形のセンサー６ａ，６ｂを用いることも可能である。 In this embodiment, the cylindrical sensors 6a and 6b are used. However, it is also possible to use U-shaped sensors 6a and 6b as shown in FIG.

１エレベータの乗りかご
２調速機駆動側プーリ
３調速機用ロープ
６ａ最上階検出用センサー
６ｂ最下階検出用センサー
７ａ最上階検出用検出体
７ｂ最下階検出用検出体
９制御部
１０機械室
１１センサー本体
１２中空部
１３ａ第１発光素子
１３ｂ第２発光素子
１３ｃ第３発光素子
１４ａ第１受光素子
１４ｂ第２受光素子
１４ｃ第３受光素子
１５下端部
１６減速域検出部
１７停止域検出部
１８行き過ぎ域検出部
１９検出光
２０センサー支持部材
２１ガバナプーリ
２２ガバナウェイト
２３ガバナ支持部材
２４昇降路の側壁
Ｈ昇降路の高さ。 1 elevator car 2 speed governor drive pulley 3 speed governor rope 6a top floor detection sensor 6b bottom floor detection sensor 7a top floor detection body 7b bottom floor detection body 9 control unit 10 Machine room 11 Sensor body 12 Hollow part 13a First light emitting element 13b Second light emitting element 13c Third light emitting element 14a First light receiving element 14b Second light receiving element 14c Third light receiving element 15 Lower end part 16 Deceleration area detection part 17 Stop area detection Unit 18 Overshoot area detection unit 19 Detection light 20 Sensor support member 21 Governor pulley 22 Governor weight 23 Governor support member 24 Side wall of hoistway H Height of hoistway.

Claims

A governor that adjusts the ascent and descent of the car,
In an elevator provided with an endless speed governor rope that is stretched between a driving pulley and a driven pulley of the speed governor and circulates along with the lifting and lowering operation of the car,
A detector for detecting the uppermost floor and a detector for detecting the lowermost floor are attached to a predetermined position of the governor rope,
A top floor detection sensor for detecting the arrival of the top floor detection object and a bottom floor detection sensor for detecting the arrival of the bottom floor detection body are installed on the circulation path of the governor rope. do it,
Based on detection signals from the uppermost floor detection sensor and the lowermost floor detection sensor, a control unit for controlling the driving operation of the governor is provided,
Based on detection of the detection object for detecting the highest floor by the sensor for detecting the highest floor, and detection of the detection object for detection of the lowest floor by the sensor for detecting the lowest floor, the controller drives the governor. An elevator characterized by controlling its operation.

The elevator according to claim 1,
The uppermost floor detection body and the lowermost floor detection body detect that the car is before landing on the uppermost floor or the lowermost floor and decelerate to reduce the moving speed of the car. An elevator characterized by having an area detection unit.

The elevator according to claim 1 or 2,
The detection object for detecting the top floor and the detection object for detecting the bottom floor have a stop area detection unit for detecting that the car has arrived on the top floor or the bottom floor and stopping the car. An elevator characterized by being.

The elevator according to any one of claims 1 to 3,
The detection unit for detecting the top floor and the detection unit for detecting the bottom floor have an overshoot area detection unit for detecting that the car has passed the top floor or the bottom floor and stopping the car. An elevator characterized by being.

The elevator according to any one of claims 1 to 4,
The detection body for detecting the top floor and the detection body for detecting the bottom floor are:
A deceleration area detector for detecting that the car is before landing on the uppermost floor or the lowermost floor and decelerating the moving speed of the car;
A stop area detector for detecting that the car has arrived at the top floor or the bottom floor and stopping the car;
An elevator having an overshoot area detecting unit for detecting that the car has passed the uppermost floor or the lowermost floor and stopping the car.

The elevator according to claim 5,
The said deceleration area detection part, a stop area detection part, and an overshoot area detection part are provided along the moving direction of the said detection object for uppermost floor detection, and the detection object for lowermost floor.

The elevator according to any one of claims 1 to 6,
The uppermost floor detection sensor and the lowermost floor detection sensor are composed of an optical sensor having a light emitting element and a light receiving element that receives detection light emitted from the light emitting element,
The elevator according to claim 1, wherein the uppermost floor detection body and the lowermost floor detection body are constituted by a shielding body that blocks detection light emitted from the light emitting element.

The elevator according to claim 7,
The shield constituting the detection body for detecting the uppermost floor and the detection body for detecting the lowermost floor,
A deceleration area detector for detecting that the car is before landing on the uppermost floor or the lowermost floor and decelerating the moving speed of the car;
A stop area detector for detecting that the car has arrived at the top floor or the bottom floor and stopping the car;
An overshoot area detecting unit for detecting that the car has passed the uppermost floor or the lowermost floor and stopping the car is provided in a moving direction of the uppermost floor detecting body and the lowermost floor detecting body. Along the staircase,
In the top floor detection sensor and the bottom floor detection sensor,
A first light-emitting element-light-receiving element pair for detecting the deceleration area detector;
A second light-emitting element-light-receiving element pair for detecting the stop area detector;
The elevator characterized by each providing the 3rd light emitting element-light receiving element pair for detecting the said overshooting area detection part.

The elevator according to any one of claims 1 to 8,
The elevator, wherein the uppermost floor detection sensor and the lowermost floor detection sensor are installed in the vicinity of a driving pulley of the governor.

The elevator according to claim 9,
The speed governor provided with the drive pulley, the uppermost floor detection sensor and the lowermost floor detection sensor, and detection signals from the uppermost floor detection sensor and the lowermost floor detection sensor are input to input the speed control device. An elevator characterized in that a control unit that outputs a drive control signal to a speed machine is installed in a machine room partitioned from a hoistway of the car.

The elevator according to any one of claims 1 to 8,
An elevator in which a driven pulley of the governor is provided in a hoistway of the car, and the uppermost floor detection sensor and the lowermost floor detection sensor are installed in the vicinity of the driven pulley. .

The elevator according to claim 11,
An elevator characterized in that a governor weight is connected to the driven pulley.

The elevator according to claim 11,
The elevator characterized in that the control unit is provided at a position below half of the height of the hoistway.