WO2018142447A1 - Elevator apparatus - Google Patents

Elevator apparatus Download PDF

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Publication number
WO2018142447A1
WO2018142447A1 PCT/JP2017/003316 JP2017003316W WO2018142447A1 WO 2018142447 A1 WO2018142447 A1 WO 2018142447A1 JP 2017003316 W JP2017003316 W JP 2017003316W WO 2018142447 A1 WO2018142447 A1 WO 2018142447A1
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WO
WIPO (PCT)
Prior art keywords
car
limit switch
elevator apparatus
elevator
operation member
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PCT/JP2017/003316
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French (fr)
Japanese (ja)
Inventor
泰裕 金山
克典 西野
隆博 西野
Original Assignee
株式会社日立製作所
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.)
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Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to SG11201905983SA priority Critical patent/SG11201905983SA/en
Priority to CN201780083093.0A priority patent/CN110191854B/en
Priority to PCT/JP2017/003316 priority patent/WO2018142447A1/en
Publication of WO2018142447A1 publication Critical patent/WO2018142447A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/08—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding
    • B66B5/10—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding electrical

Definitions

  • the present invention relates to an elevator apparatus.
  • the elevator device is provided with a mechanical limit switch as one of the safety devices, which detects that the car has exceeded the normal operating range on the terminal floor.
  • a mechanical limit switch as one of the safety devices, which detects that the car has exceeded the normal operating range on the terminal floor.
  • Such mechanical limit switches are installed in the vicinity of the lower terminal floor and the upper terminal floor of the hoistway.
  • On the side of the car there is a cam with the car ascending / descending direction as the longitudinal direction. If the car enters the area beyond the normal operating range, the car cam will be used as the limit switch of the hoistway. In response to this, the car is turned on, and in response to this, the car is stopped by braking the car by the braking device or by cutting off the power supply to the main circuit of the power converter that supplies power to the hoisting machine. It has the composition to do.
  • Patent Document 1 includes an operation member provided on a car, a position detection switch provided on a hoistway so that the operation member is operated by the operation member when the car moves to a position where the car can be boarded, A control panel capable of switching between a car boarding mode for stopping the car in response to a signal from the position detection switch and a normal operation mode after moving the car toward the boardable position on the car;
  • An elevator characterized by comprising:
  • an object of the present invention is to provide an elevator apparatus provided with a safety device that suppresses an increase in the size and weight of a car in the lifting direction.
  • an elevator apparatus has a limit switch provided in the vicinity of the upper and lower terminal floors of a hoistway, and an operation member provided in a passenger car for turning on the limit switch.
  • the member contacts the limit switch, it is detected that the car has exceeded the normal operation range, and the operation of the hoisting machine is stopped by stopping the hoisting machine operation. It is characterized by utilizing the components of the car.
  • an elevator apparatus equipped with a safety device that suppresses an increase in the size and weight of the car in the up-and-down direction.
  • FIG. 1 It is a schematic diagram which shows an example of the elevator apparatus which concerns on this invention. It is a side view which shows the car 1 of FIG. 1 and its periphery. It is a top view which shows the car 1 of FIG. 1 and its periphery.
  • FIG. 1 is a schematic diagram showing an example of an elevator apparatus according to the present invention.
  • an elevator apparatus 100 according to the present invention includes a car 1 and a counterweight 20 provided in a hoistway 10, and a rope (main rope) 16 that connects the car 1 and the counterweight 20; A hoisting machine 4 for driving the rope 16 is provided.
  • the elevator apparatus 100 shown in FIG. 1 is of a traction type, and the hoisting machine 4 frictionally drives a rope 16 (traction rope) wound around a sheave (traction sheave) 4a, so that pulleys 12 and 25 are driven.
  • the car 1 and the counterweight 20 are moved up and down.
  • FIG. 2 is a side view showing the car 1 of FIG. 1 and its surroundings
  • FIG. 3 is a top view showing the car 1 of FIG. 1 and its surroundings.
  • the hoistway 10 further includes a car guide rail 2 for guiding the car 1, a counterweight guide rail 3 for guiding the counterweight, and a control panel. 5, a position detection device 6, and a governor 7 are provided.
  • a car handrail 8 is provided on the car 1.
  • the car guide rail 2 is fixed to the wall surface of the hoistway 10 via the rail bracket 11.
  • the car 1 is slidably engaged with the car guide rail 2 and is guided by the car guide rail 2 to move up and down in the hoistway 10.
  • the counterweight guide rail 3 is fixed to the wall surface of the hoistway 10, and the counterweight 20 (not shown in FIGS. 2 and 3) is slidably engaged with the counterweight guide rail 3.
  • the hoistway 10 is moved up and down by being guided by the counterweight guide rail 3.
  • the direction in which the car 1 and the counterweight 20 are raised and lowered is defined as the raising and lowering direction. That is, the guide rails 2 and 3 guide the car 1 and the counterweight 20 in the up and down direction, respectively.
  • the rope 16 is wound around a car lower pulley 12 whose intermediate position is located below the car 1 and is connected to a rope end beam port 13 provided at the upper part of the hoistway 10 so that the car 1 is Suspended.
  • the hoisting machine 4 is installed at an intermediate position of the hoistway 10, and a rope 16 for suspending the car 1 and the counterweight 20 is wound around the traction sheave 4a. This hoisting machine 4 rotates the traction sheave 4 a to frictionally drive the rope 16 to raise and lower the car 1 and the counterweight 20.
  • the control panel 5 is installed at an intermediate position of the hoistway 10 and comprehensively controls the hoisting machine 4 and the safety device of the elevator device.
  • the position detection device 6 includes a shielding plate 14 installed at a position corresponding to each floor of the hoistway 10, and a positive detector 15 attached to the car 1 and capable of facing the shielding plate 14. The position of the car 1 is detected by facing the position detector 14 and the positive detector 15.
  • the governor 7 detects the ascending / descending speed of the car 1, and when the car 1 exceeds the rated speed and reaches a predetermined overspeed, the car 1 is brought to an emergency stop.
  • the on-car handrail 8 is a fixed type installed along the outer periphery of the upper surface of the car 1, and ensures safety when maintenance personnel get on the car 1 during maintenance work. is there.
  • the car upper handrail 8 has a plurality of vertical frames 8a, 8b, 8c, 8d extending in the ascending / descending direction of the car 1, and a horizontal frame 8e provided over the plurality of vertical frames 8a to 8d.
  • the elevator apparatus 100 is provided with a mechanical limit switch 21 that detects that the car 1 has exceeded the normal operating range on the terminal floor, and the car 1 as a safety device. And an operation member 24 for turning on the switch 21. 2 and 3, the upper final limit switch 21 is shown as the limit switch.
  • the upper final limit switch 21 is installed in the vicinity of the upper terminal floor of the hoistway 10 and cuts off the power supply to the main circuit of the power conversion device that supplies power to the hoisting machine 4 when the hoistway 10 is turned on. It can be in a state where it cannot travel (climb).
  • the upper final limit switch 21 is attached to one end of the limit switch bracket 22, and the other end of the limit switch bracket 22 is fastened together with the car guide rail 2 by the rail bracket 11 and fixed to the wall surface of the hoistway 10. .
  • a lower final limit switch that cuts off the power supply to the main circuit of the power converter that supplies power to the hoisting machine 4 according to the input is also provided in the vicinity of the lower terminal floor of the hoistway 10. is set up.
  • the operation member 24 is provided at a position facing the upper final limit switch 21 at the vertical frame 8 a of the upper car handrail 8 and at the lower part of the car 1, and is provided with a lower final limit switch (not shown). ) And a car lower operation cam 23 provided at a position that can be opposed to each other.
  • the vertical frame 8a has a flat surface with no irregularities along the ascending / descending direction of the car 1 so that the upper final limit switch 21 can slide when contacting the upper final limit switch 21.
  • the elevator apparatus 100 is characterized in that the operation member that operates the final limit switch uses the constituent member of the car 1 (in this embodiment, the handrail on the car). is there.
  • the elevator apparatus provided with the safety device which suppressed the increase in the dimension of the raising / lowering direction of a car and a weight can be provided.
  • the shape of the limit switch is not particularly limited, and a conventional shape can be applied.
  • the vertical frame 8a of the car upper rail 8 will move to the upper final limit switch 21.
  • the contact is turned on and the upper final limit switch 21 outputs a switch signal to the control panel 5.
  • the control panel 5 cuts off the power supply to the main circuit of the power converter that supplies power to the hoisting machine 4 and stops the car 1.
  • the car lower operation cam 23 comes into contact with the lower final limit switch (not shown).
  • the switch is turned on and a switch signal is output from the lower final limit switch to the control panel 5.
  • the control panel 5 cuts off the power supply to the main circuit of the power converter that supplies power to the hoisting machine 4 and stops the car 1.
  • the operation member that contacts the upper final limit switch and the operation member that contacts the lower final limit switch are conventionally manufactured as a single unit and attached to the car. This is because it is more advantageous in terms of productivity and cost to manufacture the operation member as one member than to divide the operation member into two members.
  • a component of the car 1 (a part of the car handrail 8 for maintenance, that is, the vertical frame 8a) is used as an operation member for turning on the upper final limit switch 21. Since there is no need to provide an operation member for turning on the upper final limit switch 21, the operation member that contacts the upper final limit switch and the operation member that contacts the lower final limit switch are disclosed in Patent Document 1. The weight of the car can be reduced as compared with the case where the operation member is integrated.
  • the upper final limit switch 21 extends over the maximum distance that the car 1 can go over the terminal floor and rise further. It has a sufficient dimension that can continue the operation state. Therefore, it is not necessary to provide an operation member that is longer than the vertical frame 8a, and the overhead size of the car 1 can be suppressed. That is, an increase in the dimension of the car 1 in the up-and-down direction can be suppressed.
  • the vertical frame 8a of the on-car handrail 8 is used as a constituent member of the car 1 as an operation member for turning on the upper final limit switch 21.
  • the present invention is not limited to this. Any structure that contacts the final limit switch 21 and that can slide in the upward direction of the car 1 may be used.
  • the operation member 23 is not limited to the operation member that operates the upper final limit switch 21, and the car lower operation cam 23 shown in FIG.
  • the elevator apparatus provided with the safety device which suppressed the increase in the dimension of the raising / lowering direction of a car and a weight could be provided.
  • the elevator apparatus according to the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the invention described in the claims.
  • the limit switch inserted by the vertical frame 8a of the car handrail 8 is installed in the vicinity of the upper terminal floor of the hoistway 10 and supplies electric power to the hoisting machine 4 according to the input.
  • the present invention is not limited to this, and the present invention is also applicable to a case where a plurality of limit switches are installed near the terminal floor. can do.
  • the present invention is not limited to a machine room-less elevator device. Since the configuration of the present invention is the same in an elevator apparatus having a machine room, the present invention can be applied to an elevator apparatus having a machine room as well as a machine room-less type elevator apparatus.

Abstract

Provided is an elevator apparatus provided with a safety device whereby an increase in the weight and dimension in the raising/lowering direction of an elevator car is suppressed. The elevator apparatus pertaining to the present invention is characterized by having: limit switches (21) provided in the vicinity of top and bottom terminal end floors of a hoistway; and an operating member (24) for activating the limit switches (21), the operating member (24) being provided to an elevator car (1); the elevator apparatus being configured so that the operating member (24) contacts the limit switches (21), whereby it is detected that the elevator car 91) has exceeded a normal movement range, operation of a hoisting machine is stopped, and raising/lowering of the elevator car (1) is stopped, and the operating member (24) using a constituent member (8a) of the elevator car (1).

Description

エレベーター装置Elevator equipment
　本発明は、エレベーター装置に関する。 The present invention relates to an elevator apparatus.
　エレベーター装置には、安全装置の１つとして、乗りかごが終端階における通常の運行範囲を超過したことを検出する機械式のリミットスイッチが設けられている。このような機械式のリミットスイッチは、昇降路の下終端階付近と上終端階付近に設置されている。乗りかご側には、該乗りかごの昇降方向を長手方向とするカムが設けられており、乗りかごが通常の運行範囲を超過した領域に侵入すると、乗りかごのカムが昇降路のリミットスイッチに接触してオン状態となり、これに応じて、制動装置により乗りかごを制動するか、巻上機に電力を供給する電力変換装置の主回路への電力供給を遮断する等して乗りかごを停止する構成を有している。 The elevator device is provided with a mechanical limit switch as one of the safety devices, which detects that the car has exceeded the normal operating range on the terminal floor. Such mechanical limit switches are installed in the vicinity of the lower terminal floor and the upper terminal floor of the hoistway. On the side of the car, there is a cam with the car ascending / descending direction as the longitudinal direction. If the car enters the area beyond the normal operating range, the car cam will be used as the limit switch of the hoistway. In response to this, the car is turned on, and in response to this, the car is stopped by braking the car by the braking device or by cutting off the power supply to the main circuit of the power converter that supplies power to the hoisting machine. It has the composition to do.
　機械式のリミットスイッチを設けたエレベーター装置の例として、例えば特許文献１がある。特許文献１には、かごに設けられている操作部材と、かご上搭乗可能位置に上記かごが移動したときに上記操作部材により操作されるように昇降路に設けられている位置検出スイッチと、上記かごを上記かご上搭乗可能位置へ向けて移動させた後、上記位置検出スイッチからの信号を受けて上記かごを停止させるかご上搭乗モードと、通常運転モードとの切換が可能な制御盤とを備えていることを特徴とするエレベーターが記載されている。 As an example of an elevator apparatus provided with a mechanical limit switch, there is, for example, Patent Document 1. Patent Document 1 includes an operation member provided on a car, a position detection switch provided on a hoistway so that the operation member is operated by the operation member when the car moves to a position where the car can be boarded, A control panel capable of switching between a car boarding mode for stopping the car in response to a signal from the position detection switch and a normal operation mode after moving the car toward the boardable position on the car; An elevator characterized by comprising:
特開平０９‐２８６５７５号公報JP 09-286575 A
　しかしながら、前述した特許文献１に記載のものでは、乗りかご側に設けられるカムは、乗りかごが終端階を行き過ぎて更に移動し得る最大距離にわたりリミットスイッチの作動状態を継続させる必要があることから、その長さ寸法を比較的大きく設定する必要があり、重量増やコスト増を招くという課題があった。 However, in the thing of the patent document 1 mentioned above, it is necessary for the cam provided in the car side to continue the operating state of the limit switch over the maximum distance that the car can travel further beyond the terminal floor. Therefore, it is necessary to set the length dimension to be relatively large, which causes a problem of increasing the weight and cost.
　本発明の目的は、上記事情に鑑み、乗りかごの昇降方向の寸法及び重量の増大を抑制した安全装置を備えたエレベーター装置を提供することにある。 In view of the above circumstances, an object of the present invention is to provide an elevator apparatus provided with a safety device that suppresses an increase in the size and weight of a car in the lifting direction.
　本発明に係るエレベーター装置は、上記目的を達成するため、昇降路の上下終端階近傍に設けられたリミットスイッチと、乗りかごに設けられ、リミットスイッチを投入する操作部材と、を有し、操作部材がリミットスイッチに接触することで、乗りかごが通常の運行範囲を超過したことが検出され、巻上機の作動を停止して乗りかごの昇降を停止する構成を有し、操作部材が、乗りかごの構成部材を利用したものであることを特徴とする。 In order to achieve the above object, an elevator apparatus according to the present invention has a limit switch provided in the vicinity of the upper and lower terminal floors of a hoistway, and an operation member provided in a passenger car for turning on the limit switch. When the member contacts the limit switch, it is detected that the car has exceeded the normal operation range, and the operation of the hoisting machine is stopped by stopping the hoisting machine operation. It is characterized by utilizing the components of the car.
　本発明によれば、乗りかごの昇降方向の寸法及び重量の増大を抑制した安全装置を備えたエレベーター装置を提供することができる。 According to the present invention, it is possible to provide an elevator apparatus equipped with a safety device that suppresses an increase in the size and weight of the car in the up-and-down direction.
　なお、上述した以外の課題、構成および効果は、以下の実施形態の説明により明らかにされる。 Note that problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.
本発明に係るエレベーター装置の一例を示す模式図である。It is a schematic diagram which shows an example of the elevator apparatus which concerns on this invention. 図１の乗りかご１とその周辺を示す側面図である。It is a side view which shows the car 1 of FIG. 1 and its periphery. 図１の乗りかご１とその周辺を示す上面図である。It is a top view which shows the car 1 of FIG. 1 and its periphery.
　以下、本発明に係るエレベーター装置について、図１～図３を参照して説明する。 Hereinafter, the elevator apparatus according to the present invention will be described with reference to FIGS.
　図１は本発明に係るエレベーター装置の一例を示す模式図である。図１に示すように、本発明に係るエレベーター装置１００は、昇降路１０に設けられた乗りかご１及び釣合いおもり２０と、乗りかご１及び釣合いおもり２０を接続するロープ（主ロープ）１６と、ロープ１６を駆動するための巻上機４を有する。図１に示すエレベーター装置１００は、トラクション方式のものであり、巻上機４が、綱車（トラクションシーブ）４ａに巻きかけられたロープ１６（トラクションロープ）を摩擦駆動し、プーリ１２，２５を介して乗りかご１及び釣合いおもり２０を上下に昇降させる構成を有する。 FIG. 1 is a schematic diagram showing an example of an elevator apparatus according to the present invention. As shown in FIG. 1, an elevator apparatus 100 according to the present invention includes a car 1 and a counterweight 20 provided in a hoistway 10, and a rope (main rope) 16 that connects the car 1 and the counterweight 20; A hoisting machine 4 for driving the rope 16 is provided. The elevator apparatus 100 shown in FIG. 1 is of a traction type, and the hoisting machine 4 frictionally drives a rope 16 (traction rope) wound around a sheave (traction sheave) 4a, so that pulleys 12 and 25 are driven. The car 1 and the counterweight 20 are moved up and down.
　図２は図１の乗りかご１とその周辺を示す側面図であり、図３は図１の乗りかご１とその周辺を示す上面図である。図２及び図３に示すように、昇降路１０には、さらに、乗りかご１を案内するためのかご用ガイドレール２と、釣合いおもりを案内するための釣合いおもり用ガイドレール３と、制御盤５と、位置検出装置６と、ガバナ７とが設けられている。また、乗りかご１のかご上には、かご上ハンドレール８が設けられている。 FIG. 2 is a side view showing the car 1 of FIG. 1 and its surroundings, and FIG. 3 is a top view showing the car 1 of FIG. 1 and its surroundings. As shown in FIGS. 2 and 3, the hoistway 10 further includes a car guide rail 2 for guiding the car 1, a counterweight guide rail 3 for guiding the counterweight, and a control panel. 5, a position detection device 6, and a governor 7 are provided. In addition, a car handrail 8 is provided on the car 1.
　かご用ガイドレール２は、レールブラケット１１を介して昇降路１０の壁面に固定されている。乗りかご１は、かご用ガイドレール２に摺動可能に係合し、かご用ガイドレール２に案内されて昇降路１０内を昇降する。 The car guide rail 2 is fixed to the wall surface of the hoistway 10 via the rail bracket 11. The car 1 is slidably engaged with the car guide rail 2 and is guided by the car guide rail 2 to move up and down in the hoistway 10.
　釣合いおもり用ガイドレール３は、昇降路１０の壁面に固定されており、釣合いおもり２０（図２及び図３では図示せず）は、釣合いおもり用ガイドレール３に摺動可能に係合し、釣合いおもり用ガイドレール３に案内されて昇降路１０内を昇降する。なお、乗りかご１及び釣合いおもり２０が昇降する方向を昇降方向とする。すなわち、ガイドレール２，３は、それぞれ、乗りかご１及び釣合いおもり２０を昇降方向に案内する。 The counterweight guide rail 3 is fixed to the wall surface of the hoistway 10, and the counterweight 20 (not shown in FIGS. 2 and 3) is slidably engaged with the counterweight guide rail 3. The hoistway 10 is moved up and down by being guided by the counterweight guide rail 3. The direction in which the car 1 and the counterweight 20 are raised and lowered is defined as the raising and lowering direction. That is, the guide rails 2 and 3 guide the car 1 and the counterweight 20 in the up and down direction, respectively.
　ロープ１６は、その中間位置が乗りかご１下に配置されるかご下プーリ１２に巻き掛けられるとともに、その端部が昇降路１０上部に設けられるロープ端ビームポート１３に連結され、乗りかご１を吊持している。 The rope 16 is wound around a car lower pulley 12 whose intermediate position is located below the car 1 and is connected to a rope end beam port 13 provided at the upper part of the hoistway 10 so that the car 1 is Suspended.
　巻上機４は、昇降路１０の中間位置に設置され、そのトラクションシーブ４ａには、乗りかご１及び釣合いおもり２０を吊持するロープ１６が巻き掛けられている。この巻上機４は、トラクションシーブ４ａを回転させることにより、ロープ１６を摩擦駆動して、乗りかご１及び釣合いおもり２０を昇降させる。 The hoisting machine 4 is installed at an intermediate position of the hoistway 10, and a rope 16 for suspending the car 1 and the counterweight 20 is wound around the traction sheave 4a. This hoisting machine 4 rotates the traction sheave 4 a to frictionally drive the rope 16 to raise and lower the car 1 and the counterweight 20.
　制御盤５は、昇降路１０の中間位置に設置され、巻上機４やエレベーター装置の安全装置等を統括制御している。 The control panel 5 is installed at an intermediate position of the hoistway 10 and comprehensively controls the hoisting machine 4 and the safety device of the elevator device.
　位置検出装置６は、昇降路１０の各階床に対応した位置に設置された遮蔽板１４と、乗りかご１に取付けられ、遮蔽板１４と対向可能なポジテクタ１５とを有しており、遮蔽板１４とポジテクタ１５が対向することで乗りかご１の位置を検出する構成を有している。 The position detection device 6 includes a shielding plate 14 installed at a position corresponding to each floor of the hoistway 10, and a positive detector 15 attached to the car 1 and capable of facing the shielding plate 14. The position of the car 1 is detected by facing the position detector 14 and the positive detector 15.
　ガバナ７は、乗りかご１の昇降速度を検出し、乗りかご１が定格速度を超えて所定の過速度に達したとき、乗りかご１を非常停止させるものである。 The governor 7 detects the ascending / descending speed of the car 1, and when the car 1 exceeds the rated speed and reaches a predetermined overspeed, the car 1 is brought to an emergency stop.
　かご上ハンドレール８は、乗りかご１の上面の外周に沿って設置される固定式のものであり、保守員が保守作業時に乗りかご１のかご上に乗り込んだ際に安全を確保するものである。かご上ハンドレール８は、乗りかご１の昇降方向に伸びる複数の縦枠８ａ，８ｂ，８ｃ，８ｄと、複数の縦枠８ａ～８ｄに渡って設けられた横枠８ｅとを有する。 The on-car handrail 8 is a fixed type installed along the outer periphery of the upper surface of the car 1, and ensures safety when maintenance personnel get on the car 1 during maintenance work. is there. The car upper handrail 8 has a plurality of vertical frames 8a, 8b, 8c, 8d extending in the ascending / descending direction of the car 1, and a horizontal frame 8e provided over the plurality of vertical frames 8a to 8d.
　そして、本発明に係るエレベーター装置１００は、安全装置として、乗りかご１が終端階における通常の運行範囲を超過したことを検出する機械式のリミットスイッチ２１と、乗りかご１に設けられ、このリミットスイッチ２１を投入する操作部材２４とを備えている。図２及び図３では、リミットスイッチとして、上部ファイナルリミットスイッチ２１を記載している。上部ファイナルリミットスイッチ２１は、昇降路１０の上終端階近傍に設置され、投入に応じて巻上機４に電力を供給する電力変換装置の主回路への電力供給を遮断し、乗りかご１を運行（上昇）不可の状態とすることができる。 The elevator apparatus 100 according to the present invention is provided with a mechanical limit switch 21 that detects that the car 1 has exceeded the normal operating range on the terminal floor, and the car 1 as a safety device. And an operation member 24 for turning on the switch 21. 2 and 3, the upper final limit switch 21 is shown as the limit switch. The upper final limit switch 21 is installed in the vicinity of the upper terminal floor of the hoistway 10 and cuts off the power supply to the main circuit of the power conversion device that supplies power to the hoisting machine 4 when the hoistway 10 is turned on. It can be in a state where it cannot travel (climb).
　上部ファイナルリミットスイッチ２１は、リミットスイッチブラケット２２の一端に取り付けられるとともに、リミットスイッチブラケット２２の他端は、レールブラケット１１によりかご用ガイドレール２と共締めされ昇降路１０の壁面に固定されている。なお、図示しないが、昇降路１０の下終端階近傍にも同様に、投入に応じて巻上機４に電力を供給する電力変換装置の主回路への電力供給を遮断する下部ファイナルリミットスイッチが設置されている。 The upper final limit switch 21 is attached to one end of the limit switch bracket 22, and the other end of the limit switch bracket 22 is fastened together with the car guide rail 2 by the rail bracket 11 and fixed to the wall surface of the hoistway 10. . Although not shown, a lower final limit switch that cuts off the power supply to the main circuit of the power converter that supplies power to the hoisting machine 4 according to the input is also provided in the vicinity of the lower terminal floor of the hoistway 10. is set up.
　図２では、操作部材２４として、上部ファイナルリミットスイッチ２１に対向可能な位置に設けられたかご上ハンドレール８の縦枠８ａと、乗りかご１の下部に設けられ、下部ファイナルリミットスイッチ（不図示）に対向可能な位置に設けられたかご下操作カム２３とから構成される。縦枠８ａは、上部ファイナルリミットスイッチ２１と接触した際に、上部ファイナルリミットスイッチ２１が摺動できるように、乗りかご１の昇降方向に沿って凹凸の無い、平坦な表面を有している。 In FIG. 2, the operation member 24 is provided at a position facing the upper final limit switch 21 at the vertical frame 8 a of the upper car handrail 8 and at the lower part of the car 1, and is provided with a lower final limit switch (not shown). ) And a car lower operation cam 23 provided at a position that can be opposed to each other. The vertical frame 8a has a flat surface with no irregularities along the ascending / descending direction of the car 1 so that the upper final limit switch 21 can slide when contacting the upper final limit switch 21.
　上述したように、本発明に係るエレベーター装置１００は、ファイナルリミットスイッチを作動させる操作部材を、乗りかご１の構成部材（本実施形態では、かご上ハンドレール）を利用していることに特徴がある。このような構成とすることで、乗りかごの昇降方向の寸法及び重量の増大を抑制した安全装置を備えたエレベーター装置を提供することができる。なお、リミットスイッチの形状は、特に限定は無く、従来の形状を適用することができる。 As described above, the elevator apparatus 100 according to the present invention is characterized in that the operation member that operates the final limit switch uses the constituent member of the car 1 (in this embodiment, the handrail on the car). is there. By setting it as such a structure, the elevator apparatus provided with the safety device which suppressed the increase in the dimension of the raising / lowering direction of a car and a weight can be provided. The shape of the limit switch is not particularly limited, and a conventional shape can be applied.
　次に、上部ファイナルリミットスイッチ２１の動作について説明する。 Next, the operation of the upper final limit switch 21 will be described.
　乗りかご１が何らかの異常により、通常の運行範囲である最上階の正規停止位置から所定の距離を行き過ぎると（上昇し過ぎると）、かご上ハンドレール８の縦枠８ａが上部ファイナルリミットスイッチ２１に接触してオン状態となり、上部ファイナルリミットスイッチ２１から制御盤５にスイッチ信号が出力される。この出力を受けた制御盤５は、巻上機４に電力を供給する電力変換装置の主回路への電力供給を遮断し、乗りかご１を停止する。 If the car 1 goes beyond a predetermined distance from the normal stop position on the top floor, which is the normal operating range, due to some abnormality (if it rises too much), the vertical frame 8a of the car upper rail 8 will move to the upper final limit switch 21. The contact is turned on and the upper final limit switch 21 outputs a switch signal to the control panel 5. Upon receiving this output, the control panel 5 cuts off the power supply to the main circuit of the power converter that supplies power to the hoisting machine 4 and stops the car 1.
　かご上ハンドレール８の縦枠８ａが上部ファイナルリミットスイッチ２１に接触してオン状態となってから、実際に乗りかご１が停止するまでタイムラグがある。したがって、縦枠８ａが上部ファイナルリミットスイッチ２１に接触してからも乗りかご１はさらに上昇するが、この間、上部ファイナルリミットスイッチ２１は縦枠８ａの表面を摺動し、上部ファイナルリミットスイッチ２１はオン状態が維持されることになる。 There is a time lag until the car 1 actually stops after the vertical frame 8a of the handrail 8 on the car contacts the upper final limit switch 21 and is turned on. Therefore, the car 1 further rises after the vertical frame 8a contacts the upper final limit switch 21, but during this time, the upper final limit switch 21 slides on the surface of the vertical frame 8a, and the upper final limit switch 21 The on state is maintained.
　一方、乗りかご１が何らかの異常により、最下階の正規停止位置から所定の距離を行き過ぎると（下降し過ぎると）、かご下操作カム２３が下部ファイナルリミットスイッチ（図示せず）に接触してオン状態となり、下部ファイナルリミットスイッチから制御盤５にスイッチ信号が出力される。この出力を受けた制御盤５は、巻上機４に電力を供給する電力変換装置の主回路への電力供給を遮断し、乗りかご１を停止する。 On the other hand, if the car 1 goes beyond a predetermined distance from the normal stop position on the lowest floor due to some abnormality (if it goes down too much), the car lower operation cam 23 comes into contact with the lower final limit switch (not shown). The switch is turned on and a switch signal is output from the lower final limit switch to the control panel 5. Upon receiving this output, the control panel 5 cuts off the power supply to the main circuit of the power converter that supplies power to the hoisting machine 4 and stops the car 1.
　上述した特許文献１のように、従来は、上部ファイナルリミットスイッチに接触する操作部材と、下部ファイナルリミットスイッチに接触する操作部材とは一体物として製作され、乗りかごに取り付けられていた。これは、操作部材を２つの部材に分けるよりも、１つの部材として製作した方が、制作性及びコストの面で有利なためである。 As described in Patent Document 1, the operation member that contacts the upper final limit switch and the operation member that contacts the lower final limit switch are conventionally manufactured as a single unit and attached to the car. This is because it is more advantageous in terms of productivity and cost to manufacture the operation member as one member than to divide the operation member into two members.
　一方、本実施形態では、上述したように、乗りかご１の構成部材（保守用のかご上ハンドレール８の一部の部材、すなわち縦枠８ａ）を、上部ファイナルリミットスイッチ２１を投入する操作部材として利用したことにより、上部ファイナルリミットスイッチ２１を投入する操作部材を設ける必要が無いから、特許文献１のように、上部ファイナルリミットスイッチに接触する操作部材と下部ファイナルリミットスイッチに接触する操作部材とが一体となった操作部材を設ける場合と比較して、乗りかごの重量の低減を図ることができる。 On the other hand, in the present embodiment, as described above, a component of the car 1 (a part of the car handrail 8 for maintenance, that is, the vertical frame 8a) is used as an operation member for turning on the upper final limit switch 21. Since there is no need to provide an operation member for turning on the upper final limit switch 21, the operation member that contacts the upper final limit switch and the operation member that contacts the lower final limit switch are disclosed in Patent Document 1. The weight of the car can be reduced as compared with the case where the operation member is integrated.
　また、上述したように、操作部材がファイナルリミットスイッチに接触してから乗りかご１は昇降し続けるため、この間も操作部材がファイナルリミットスイッチに接触し続けることが必要とされるが、かご上ハンドレール８の縦枠８ａは、保守時の安全確保のため予め所定の高さ寸法を有する部材であることから、乗りかご１が終端階を行き過ぎて更に上昇し得る最大距離にわたり上部ファイナルリミットスイッチ２１の作動状態を継続させることができる十分な寸法を有している。したがって、縦枠８ａよりもさらに長い操作部材を設ける必要が無く、乗りかご１のオーバーヘッド寸法を抑えることができる。すなわち、乗りかご１の昇降方向の寸法の増大を抑制することができる。 Further, as described above, since the car 1 continues to move up and down after the operation member comes into contact with the final limit switch, it is necessary to keep the operation member in contact with the final limit switch during this time. Since the vertical frame 8a of the rail 8 is a member having a predetermined height in advance for ensuring safety during maintenance, the upper final limit switch 21 extends over the maximum distance that the car 1 can go over the terminal floor and rise further. It has a sufficient dimension that can continue the operation state. Therefore, it is not necessary to provide an operation member that is longer than the vertical frame 8a, and the overhead size of the car 1 can be suppressed. That is, an increase in the dimension of the car 1 in the up-and-down direction can be suppressed.
　上部ファイナルリミットスイッチ２１を投入する操作部材とする乗りかご１の構成部材として、上記実施形態ではかご上ハンドレール８の縦枠８ａを用いたが、これに限られない。ファイナルリミットスイッチ２１に接触し、かつ、乗りかご１の上昇方向に摺動可能な構造を有するものであればよい。また、上部ファイナルリミットスイッチ２１を操作する操作部材に限られず、図２のかご下操作カム２３を、乗りかご１の構成部材を利用したものとしてもよい。 In the above embodiment, the vertical frame 8a of the on-car handrail 8 is used as a constituent member of the car 1 as an operation member for turning on the upper final limit switch 21. However, the present invention is not limited to this. Any structure that contacts the final limit switch 21 and that can slide in the upward direction of the car 1 may be used. Further, the operation member 23 is not limited to the operation member that operates the upper final limit switch 21, and the car lower operation cam 23 shown in FIG.
　以上、本発明に係るエレベーター装置によれば、乗りかごの昇降方向の寸法及び重量の増大を抑制した安全装置を備えたエレベーター装置を提供できることが示された。 As mentioned above, according to the elevator apparatus which concerns on this invention, it was shown that the elevator apparatus provided with the safety device which suppressed the increase in the dimension of the raising / lowering direction of a car and a weight could be provided.
　本発明に係るエレベーター装置は、上述した実施形態に限定されるものではなく、特許請求の範囲に記載した発明の要旨を逸脱しない範囲内で種々の変形実施が可能である。 The elevator apparatus according to the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the invention described in the claims.
　例えば、上述した実施形態では、かご上ハンドレール８の縦枠８ａにより投入されるリミットスイッチは、昇降路１０の上終端階近傍に設置され、投入に応じて巻上機４に電力を供給する電力変換装置の主回路への電力供給を遮断する上部ファイナルリミットスイッチ２１のみとしたが、本発明はこれに限られることはなく、複数のリミットスイッチが終端階近傍に設置されたものにも適用することができる。 For example, in the embodiment described above, the limit switch inserted by the vertical frame 8a of the car handrail 8 is installed in the vicinity of the upper terminal floor of the hoistway 10 and supplies electric power to the hoisting machine 4 according to the input. Although only the upper final limit switch 21 that cuts off the power supply to the main circuit of the power converter is used, the present invention is not limited to this, and the present invention is also applicable to a case where a plurality of limit switches are installed near the terminal floor. can do.
　すなわち、乗りかご１が終端階の正規停止位置から所定距離行き過ぎたときに作動するリミットスイッチと、この所定距離をさらに一定距離行き過ぎたとき作動するファイナルリミットスイッチとを備えたエレベーター装置にあって、リミットスイッチ及びファイナルリミットスイッチのそれぞれをかご上ハンドレール８の縦枠８ａにより投入する構成とすることもできる。 That is, in an elevator apparatus provided with a limit switch that operates when the car 1 exceeds a predetermined distance from the normal stop position on the terminal floor, and a final limit switch that operates when the predetermined distance further exceeds a certain distance, Each of the limit switch and the final limit switch may be inserted by the vertical frame 8a of the car handrail 8.
　なお、本発明は機械室レス式のエレベーター装置に限定されるものではない。本発明は、機械室を有するエレベーター装置においても構成は同じであるため、機械室レス式のエレベーター装置と同様に機械室を有するエレベーター装置にも適用することができる。 The present invention is not limited to a machine room-less elevator device. Since the configuration of the present invention is the same in an elevator apparatus having a machine room, the present invention can be applied to an elevator apparatus having a machine room as well as a machine room-less type elevator apparatus.
　１…乗りかご、２…かご用ガイドレール、３…釣合いおもり用ガイドレール、４…巻上機、４ａ…綱車（トラクションシーブ）、５…制御盤、６…位置検出装置、７…ガバナ、８…かご上ハンドレール、８ａ，８ｂ，８ｃ，８ｄ…縦枠、８ｅ…横枠、１０…昇降路、１１…レールブラケット、１２…かご下プーリ、１３…ロープ端ビームポート、１４…遮蔽板、１５…ポジテクタ、１６…ロープ、２０…釣合いおもり、２１…上部ファイナルリミットスイッチ、２２…リミットスイッチブラケット、２３…かご下操作カム、２４…操作部材、２５…釣合いおもり用プーリ、１００…エレベーター装置。 DESCRIPTION OF SYMBOLS 1 ... Ride car, 2 ... Car guide rail, 3 ... Counterweight guide rail, 4 ... Hoisting machine, 4a ... Sheave (traction sheave), 5 ... Control panel, 6 ... Position detection device, 7 ... Governor, 8 ... Hand rail on the car, 8a, 8b, 8c, 8d ... Vertical frame, 8e ... Horizontal frame, 10 ... Hoistway, 11 ... Rail bracket, 12 ... Pulse lower pulley, 13 ... Rope end beam port, 14 ... Shielding plate 15 ... Positive detector, 16 ... Rope, 20 ... Balance weight, 21 ... Upper final limit switch, 22 ... Limit switch bracket, 23 ... Cage operating cam, 24 ... Operating member, 25 ... Pull for counterweight, 100 ... Elevator device .

Claims (5)

  1. 　昇降路に設けられた乗りかごと、釣り合いおもりと、前記乗りかご及び前記釣り合いおもりに接続されたロープと、前記ロープを駆動するための巻上機と、を備えたエレベーター装置において、
    　前記昇降路の上下終端階近傍に設けられたリミットスイッチと、前記乗りかごに設けられ、前記リミットスイッチを投入する操作部材と、を有し、前記操作部材が前記リミットスイッチに接触することで、前記乗りかごが通常の運行範囲を超過したことが検出され、前記巻上機の作動が停止されて前記乗りかごの昇降が停止される構成を有し、
    　前記操作部材が、前記乗りかごの構成部材を利用したものであることを特徴とするエレベーター装置。     In an elevator apparatus comprising a car provided in a hoistway, a counterweight, a rope connected to the car and the counterweight, and a hoisting machine for driving the rope,
    A limit switch provided in the vicinity of the upper and lower terminal floors of the hoistway, and an operation member provided on the car and for turning on the limit switch, and the operation member is in contact with the limit switch, It is detected that the car has exceeded the normal operation range, the hoisting machine is stopped, and the raising and lowering of the car is stopped,
    The elevator device characterized in that the operation member uses a component member of the car.
  2. 　請求項１記載のエレベーター装置において、
    　前記乗りかごの構成部材は、前記乗りかごの上部に設けられたかご上ハンドレールであり、
    　前記かご上ハンドレールは、前記乗りかごの昇降方向に伸びる複数の縦枠と、前記複数の縦枠に渡って設けられた横枠と、を有し、
    　前記複数の縦枠のうち、前記リミットスイッチと対向する位置に配置された縦枠が前記操作部材を構成することを特徴とするエレベーター装置。     In the elevator apparatus according to claim 1,
    The component of the car is a handrail on the car provided on the upper part of the car,
    The car handrail has a plurality of vertical frames extending in the ascending / descending direction of the car, and a horizontal frame provided across the plurality of vertical frames,
    Of the plurality of vertical frames, a vertical frame arranged at a position facing the limit switch constitutes the operation member.
  3. 　請求項２記載のエレベーター装置において、
    　前記操作部材を構成する前記縦枠の前記リミットスイッチに接触する面が、前記乗りかごの昇降方向に沿って平坦であることを特徴とするエレベーター装置。     In the elevator apparatus according to claim 2,
    The elevator apparatus according to claim 1, wherein a surface of the vertical frame that constitutes the operation member is in contact with the limit switch in a vertical direction along the elevator car.
  4. 　請求項２記載のエレベーター装置において、
    　前記リミットスイッチは、前記昇降路の上終端階近傍に設置されているものであることを特徴とするエレベーター装置。     In the elevator apparatus according to claim 2,
    The said limit switch is installed in the vicinity of the upper terminal floor of the said hoistway, The elevator apparatus characterized by the above-mentioned.
  5. 　請求項１乃至４のいずれか１項に記載のエレベーター装置において、
    　前記リミットスイッチは、投入に応じて前記巻上機に電力を供給する電力変換装置の主回路への電力供給を遮断するファイナルリミットスイッチであることを特徴とするエレベーター装置。     In the elevator apparatus of any one of Claims 1 thru | or 4,
    The elevator device according to claim 1, wherein the limit switch is a final limit switch that cuts off power supply to a main circuit of a power conversion device that supplies power to the hoisting machine when turned on.
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CN110191854A (en) 2019-08-30
SG11201905983SA (en) 2019-08-27

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