WO2001081225A1 - Elevator maintenance mode switching device - Google Patents

Elevator maintenance mode switching device Download PDF

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Publication number
WO2001081225A1
WO2001081225A1 PCT/JP2000/002741 JP0002741W WO0181225A1 WO 2001081225 A1 WO2001081225 A1 WO 2001081225A1 JP 0002741 W JP0002741 W JP 0002741W WO 0181225 A1 WO0181225 A1 WO 0181225A1
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WO
WIPO (PCT)
Prior art keywords
maintenance mode
switch
mode switching
elevator
maintenance
Prior art date
Application number
PCT/JP2000/002741
Other languages
French (fr)
Japanese (ja)
Inventor
Makoto Tomidokoro
Kazumasa Ito
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to EP00921040A priority Critical patent/EP1281654B1/en
Priority to PCT/JP2000/002741 priority patent/WO2001081225A1/en
Publication of WO2001081225A1 publication Critical patent/WO2001081225A1/en

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Classifications

    • 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
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
    • 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
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel

Definitions

  • the present invention relates to a maintenance mode switching device for an elevator, and more particularly, to a maintenance mode for improving safety of maintenance work in a machine room-less elevator in which a winding machine is installed on a shaft of a hoistway. It is related to the maintenance mode switching device of the elevator
  • 3 to 7 are views showing a machine room-less elevator where a hoist is installed on a conventional hoistway bit.
  • reference numeral 1 denotes a hoistway of Elevate overnight
  • 2 denotes a lower part of the hoistway of Erebe overnight, particularly a pit below the lowest floor
  • 3 denotes a pit in pit 2.
  • the hoisting machine provided, 4 is an elevator car for raising and lowering in the hoistway 1, 5 and 6 are return wheels for changing the direction of the rope arranged above the hoistway 1, and 7 is below the car 4
  • a pair of hanging wheels that are placed and lift the basket 4, 8 are ropes, one end of which is fixed at the upper part of the hoistway 1, passed through the sheave 11 of the weight 10, and installed further on the hoistway 1
  • the other end: 12 is fixed to the upper part of the hoistway through the returned return wheel 5, the hoisting machine 3, the return wheel 6, and the suspension wheel 7.
  • a ship 11 At the top of the counterweight 10, a ship 11 is installed. 13 is a cage-side rail that guides the elevator of the car 4 through a guide (not shown) attached to the car 4, and 14 is a guide 10 for the counter one weight 10 (not shown).
  • the rail on the counterweight side, which is guided through the rail, is fixed to the hoistway wall via a rail bracket (not shown).
  • Reference numeral 15 denotes a buffer for the car 4 provided in the port 2 of the hoistway 1
  • reference numeral 16 denotes a buffer for the counterweight 10.
  • Reference numeral 17 denotes a control panel provided in the pit 2 below the hoistway 1 of the elevator.
  • the lowest floor at Elebe overnight has a landing entrance 1 8
  • a hall entrance 18 is provided with a hall door 19, a three-way frame 20, and a threshold 21 guided through the legs of the hall door 19.
  • the landing door 19 is provided with a triangular key 22 for unlocking the landing door 19, and the triangular key 22 shown in FIG. Rotate in the direction to unlock.
  • Reference numeral 23 denotes a push-up bar which is pushed upward when the triangular key 22 rotates in the direction of arrow A.
  • Reference numeral 24 denotes a landing door 19 via a hanger roller 27 on a rail 26 of a hanger case 25.
  • the hanging hanger plate 28 is a latch fixed on the hanger plate 24 via a shaft 29.
  • the push-up bar 23 is pushed upward, the hanger plate rotates in the direction of the arrow B, and the latch 3 The bond with 0 is released and locked.
  • the triangular keys 22 are also connected to the levers 31, 32 and 33, which are pin-coupled to each other.
  • the lever 31 When the triangular key 22 rotates in the direction of arrow A, the lever 31 also moves in the same direction. And the long lever 32 is pulled downward.
  • Lever 1 3 3 is a hanger plate
  • a maintenance mode switching switch 35 mounted on the hanger case 25 is a maintenance mode switching switch 35, and 36 is a lever that is pushed upward when the lever 33 rotates in the direction of arrow D.
  • the pin-coupled lever 37 rotates around the shaft 39 fixed to the case 38 in the direction of the arrow E to operate the switch 40.
  • the maintenance mode switching switch 35 it will be self-holding.For example, if the external reset switch 42 provided on the landing inspection panel 41 as shown in Fig. It is.
  • reference numeral 43 denotes a pit ladder. When maintenance work is to be performed on pit 2 after unlocking door 19 on the lowest floor, the pit ladder 43 is used. It is for getting down to work unit 2 and working.
  • the inspection panel 41 installed at the landing on the lowest floor is used to open the panel 41 with a dedicated key to carry out maintenance work.
  • a reset button 42 for a mode switching switch 35 is provided.
  • Reference numeral 4 denotes an illumination which is activated when the maintenance mode switching switch 35 is operated to illuminate the inside of the bit 2. .
  • the door 18 of the lowest floor is unlocked using the triangular key 22.
  • the triangular key 22 in FIG. 5 is rotated in the direction of arrow A, the latch 28 is removed from the latch 30 with the push-up bar 23, and the landing door 18 can be opened by hand.
  • the maintenance mode changeover switch 35 is operated and self-held by the link mechanism consisting of the levers 31, 32, 33, 36 and 37 connected to the triangular key 22. .
  • the elevator When the elevator is put into the maintenance mode in this way, the elevator can only be operated at the manual speed, and the pit lights 4 4 are turned on to provide the brightness necessary for the work, and it is safe. This will allow the operator to enter and display the message, and during the maintenance work, the worker will not be able to respond to the calls of the elevators on other floors, so that the maintenance work can be performed safely.
  • the elevator is in automatic mode due to human error in the following cases: Nevertheless, there was a problem that the worker sometimes entered the pit 2 by mistake when in the maintenance mode.
  • the elevator is for observation, etc., and the hoistway is made up of windows.
  • the inside of the hoistway is bright, so the maintenance mode is reset by repeated mistakes after repeatedly setting and resetting the maintenance mode. And enter the pitch.
  • an object of the present invention is to solve the above-described problem, and directly detects that a maintenance worker has entered a bit, thereby preventing entry into the pit due to a mistake of the worker.
  • the purpose is to provide a maintenance mode switching device for the elevator that can perform the maintenance.
  • Another object is to provide a maintenance mode switching device for directly detecting that a maintenance worker has entered the pit and switching the maintenance mode to the maintenance mode.
  • the maintenance mode switching device for the elevator overnight detects the entry of a worker into the elevator pit to switch the operation mode of the elevator to the maintenance mode.
  • a self-holding maintenance mode changeover switch that switches to the maintenance mode, and is installed in the elevator door to reset the maintenance mode changeover switch. It has a reset switch that cannot be operated.
  • the maintenance mode switching switch may be a weight detection switch that detects the weight of the worker and detects the entry of the worker.
  • the weight detection switch is provided in a pit and is provided with a ladder on which an operator rides when entering the pit, a guide and support device for supporting the ladder with respect to a hoistway wall so that the ladder can be moved in a limited manner, And a detection switch for detecting the movement of the ladder due to the weight of the ladder and switching the elevator to the maintenance mode.
  • the maintenance mode switching switch may be provided with a heat-sensitive switch provided in the pit to monitor the heat released by the workers.
  • the reset switch may be provided at a position in the hoistway near the entrance of the landing where workers can reach and operate from the lowest floor landing.
  • FIG. 1 is a schematic side view showing an embodiment of an elevator maintenance mode switching device according to the present invention.
  • FIG. 2 is a schematic plan sectional view showing another embodiment of the maintenance mode switching device for an elevator according to the present invention.
  • FIG. 3 shows a conventional elevator to which the elevator maintenance mode switching device of the present invention can be applied.
  • -It is a schematic diagram of the evening.
  • FIG. 4 is a schematic plan sectional view of a conventional elevator.
  • FIG. 5 is a front view showing a conventional maintenance mode switching device for an elevator.
  • FIG. 6 is a side sectional view showing a conventional maintenance mode switching device for an elevator.
  • FIG. 7 is a maintenance mode switching flowchart in a conventional maintenance mode switching apparatus for an elevator.
  • FIG. 1 and 2 show an embodiment of the maintenance mode switching device of the present invention.
  • the landing 50 on the lowest floor of Elevate is provided with an entrance 18 equipped with a door 19, a three-sided frame 20 and a threshold 21.
  • 1 is provided with a ladder 52 extending almost vertically from the landing 50 on the lowest floor to the inside of the pit 2.
  • the ladder 52 is connected to a bracket 56 fixed to the shaft wall 51 via a link 55 connected at its upper end 53 by a pin 54, and to a pin 58 at a lower end 57. It is connected to a bracket 60 fixed to a shaft wall 51 via a connected link 59. Accordingly, the ladder 52 can move up and down substantially in parallel along the shaft wall 51.
  • the links 55 and 59 are guide support devices that support the ladder 52 so as to be able to perform a limited movement by being guided with respect to the shaft wall 51.
  • a compression panel 61 is provided between the lower end 57 of the ladder 52 and the floor 60 of the pit 2, and the ladder 52 is always kept at a predetermined distance from the floor 60 of the bit 2. It is done so.
  • At the lower end 57 of the ladder 52 there are bolts extending from the lower end 57 to the floor 60 of the pit 2, which are bolts that can adjust the protruding length from the ladder 52.
  • a predetermined gap G is formed between the stopper 62 and the floor 60 of the pipe 2 by adjusting the projecting length of the stopper 62.
  • the strength of the compression panel 61 normally holds the ladder 52 in the position shown in the figure, i.e., a position where a gap G force s is formed between the stopper 62 of the ladder 52 and the floor 60 of the pit 2.
  • the compression panel 61 is compressed by the weight of the worker and the stopper 62 hits the floor 60 of the port 2.
  • the ladder 52 descends until the gap G disappears, and returns to its original position with the gap G when the worker descends.
  • the maintenance mode switching device of the elevator is a weight detection type maintenance mode which is attached to the hoistway wall 51 and detects the drop of the ladder 52.
  • a switching switch 63 is provided.
  • the maintenance mode switching switch 63 is a self-holding detection switch that is operated by turning a link 55 that connects the ladder 52 to the hoistway wall 51.
  • the maintenance mode switching switch 63 can detect the descent of the ladder 52 in the hoistway 1 and may be provided at any position where it does not hinder the work in the hoistway 1 or the pit 2. In this sense, the maintenance mode switching switch 63 is an entry detecting device for detecting entry of an operator into the port 2.
  • the maintenance mode switching device of the elevator further switches the maintenance mode switching switch 63 to the off position after the self-maintenance type maintenance mode switching switch 63 is operated and once turned on.
  • a reset switch 64 for releasing the mode and returning to the automatic rated speed operation is provided.
  • the reset switch 64 is attached to the hoistway wall 51 in the hoistway 1, and after the work is completed, the worker exits from the hoistway 1 and the ladder 52 turns the lowermost floor from the ladder 52. It is located near the entrance 18 of the hall so that you can reach and operate it after moving to the hall 50. However, when the landing door 19 is closed, the hand does not reach the reset switch 64 in the hoistway.
  • the reset switch 64 is provided in the hoistway 1 of the elevator, and cannot be operated from the landing 50 when the landing door 19 of the elevator is closed.
  • the maintenance mode switching device for the elevator does not include a link mechanism including the links 31, 32, 33, 36, and 37 shown in FIG.
  • the maintenance mode changeover switch 35 operated by the link mechanism is not provided.
  • the guide support device such as 59, supports the hoistway wall 51 so that it can be guided and moves in a limited manner. I will not give it.
  • the maintenance mode is entered in the same manner as the maintenance work of. In maintenance mode, manual speed operation is performed instead of automatic rated speed operation, and the inside of pit 2 is illuminated by lights 44 for work.
  • the maintenance mode switch 6 3 also returns to the off position again, but the reset switch
  • the maintenance mode switching device of the elevator further operates on a ladder 52 as a maintenance mode switching switch for detecting the entry of an operator into the bit 2 for the maintenance mode switching.
  • the switch 63 that detects the onset by sensing the weight of the worker, it also has a heat-sensitive switch 65.
  • the thermal switch 65 is a thermal sensor mounted on the shaft wall 51 facing the pit 2 so that almost the entire area of the pit 2 floor can be monitored for heat released by workers. Yes, to ensure that workers are in pit 2.
  • the heat-sensitive switch 65 and the weight-sensitive switch 63 are used in combination, the operation reliability can be improved.
  • These maintenance mode changeover switches can be used independently.
  • the thermal switch 65 alone as a maintenance mode switch, the ladder 52 is fixed to the hoistway wall 51, and the switch 63 that detects the descent of the ladder 52 is replaced with the thermal switch 65. Should be connected to the circuit. Industrial applicability
  • the maintenance mode switching device for an elevator is intended to improve the safety of maintenance work especially in a machine room-less elevator in which a hoist is installed in a hoistway pit. This is useful in that it can directly detect that a maintenance worker has entered the pit, switch the elevator to maintenance mode, and prevent entry into the pit due to operator error.

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)

Abstract

An elevator maintenance mode switching device capable of switching an elevator operation mode to a maintenance mode automatically to prevent a worker from entering a pit (2) without switching the elevator operation mode to the maintenance mode, comprising a maintenance mode selector switch (63) and a reset switch (64), wherein the maintenance mode selector switch (63) switches the elevator operation mode to the maintenance mode when detecting the entry of the worker into the pit (2) and holds that state, and the reset switch (64) has a function to reset the maintenance mode selector switch (63) and is installed in a hoistway (1) which, when a landing door (19) is closed, cannot be operated from a platform (50); a method of detecting the entry of the worker, comprising the step of, for example, detecting a weight or temperature, wherein, when the entry is detected by weight detection, a method in which the movement of a ladder (52), on which the worker rides when he enters the pit (2), caused by the weight of the worker is detected by the maintenance mode selector switch (63) is preferably used.

Description

明 細 書 エレべ一夕の保守モード切替装置 技術分野  Description Maintenance mode switching device for elevators
この発明はエレべ一夕の保守モード切替装置に関するものであり、 特に昇降路 ピヅトに卷上機を設置する機械室レスエレべ一夕の保守作業の安全性の改善のた めに保守モードに切替えるエレべ一夕の保守モード切替装置に関するものである  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a maintenance mode switching device for an elevator, and more particularly, to a maintenance mode for improving safety of maintenance work in a machine room-less elevator in which a winding machine is installed on a shaft of a hoistway. It is related to the maintenance mode switching device of the elevator
背景技術 Background art
図 3乃至図 7は、 従来の昇降路ビットに卷上機を設置した機械室レスエレべ一 夕示す図である。 これらの図、 特に図 3に於いて、 符号 1はエレべ一夕の昇降路 、 2はエレべ一夕昇降路の下部、 特に最下階階床の下方のピット、 3はピット 2 内に設けられた卷上機、 4は昇降路 1内を昇降するエレべ一夕のかご、 5および 6は昇降路 1の上部に配置したロープ方向を転換する返し車、 7はかご 4の下に 配置され、 かご 4を持ち上げる 1対の吊り車、 8はロープで、 昇降路 1の上部に 一端 9を固定されて錘 1 0のシ一ブ 1 1を通され、 更に昇降路 1上部に設置され た返し車 5、 卷上機 3、 返し車 6、 吊り車 7を通って昇降路上部に他端: 1 2が固 定されている。  3 to 7 are views showing a machine room-less elevator where a hoist is installed on a conventional hoistway bit. In these figures, and especially in FIG. 3, reference numeral 1 denotes a hoistway of Elevate overnight, 2 denotes a lower part of the hoistway of Erebe overnight, particularly a pit below the lowest floor, and 3 denotes a pit in pit 2. The hoisting machine provided, 4 is an elevator car for raising and lowering in the hoistway 1, 5 and 6 are return wheels for changing the direction of the rope arranged above the hoistway 1, and 7 is below the car 4 A pair of hanging wheels that are placed and lift the basket 4, 8 are ropes, one end of which is fixed at the upper part of the hoistway 1, passed through the sheave 11 of the weight 10, and installed further on the hoistway 1 The other end: 12 is fixed to the upper part of the hoistway through the returned return wheel 5, the hoisting machine 3, the return wheel 6, and the suspension wheel 7.
カウンターウェイ ト 1 0の上部にはシ一プ 1 1が設置されている。 1 3はかご 4の昇降をかご 4に付けられたガイ ドシユー （図示してない） を介してガイドす るかご側のレール、 1 4はカウンタ一ウェイ ト 1 0のガイ ドシユー （図示してな い） を介してガイ ドするカウンターウェイト側のレールで、 レールブラケット （ 図示してない） を介して昇降路の壁に固定されている。 1 5は昇降路 1のピヅト 2内に設けられたかご 4用のバッファ一で、 1 6はカウンターウェイト 1 0用の バッファ—である。 1 7はエレべ一夕の昇降路 1の下部のピット 2に設けられた 制御盤である。  At the top of the counterweight 10, a ship 11 is installed. 13 is a cage-side rail that guides the elevator of the car 4 through a guide (not shown) attached to the car 4, and 14 is a guide 10 for the counter one weight 10 (not shown). The rail on the counterweight side, which is guided through the rail, is fixed to the hoistway wall via a rail bracket (not shown). Reference numeral 15 denotes a buffer for the car 4 provided in the port 2 of the hoistway 1, and reference numeral 16 denotes a buffer for the counterweight 10. Reference numeral 17 denotes a control panel provided in the pit 2 below the hoistway 1 of the elevator.
図 4に良く示されているように、 エレべ一夕の最下階の乗場には乗場入口 1 8 が設けられており、 乗場入口 1 8には乗場の戸 1 9、 三方枠 2 0および乗場の戸 1 9の戸の脚を介してガイドする敷居 2 1が設けられている。 図 5に良く示され ているように、 乗場の戸 1 9には乗場の戸 1 9を解錠する三角キー 2 2が設けら れていて、 三角キ一 2 2を図 5の矢印 Aの方向に回転させると開錠することがで きる。 2 3は三角キー 2 2が矢印 Aの方向に回転したとき上方向に押し上げられ る押上棒、 2 4は乗場の戸 1 9をハンガーケース 2 5のレール 2 6上にハンガー ローラ 2 7を介して吊るハンガープレート、 2 8はハンガープレート 2 4上に軸 2 9を介して固定されたラッチで、 押上棒 2 3が上方向に押し上げられると、 矢 印 Bの方向に回転して、 掛金 3 0との結合が外れて閧錠する。 As can be clearly seen in Figure 4, the lowest floor at Elebe overnight has a landing entrance 1 8 A hall entrance 18 is provided with a hall door 19, a three-way frame 20, and a threshold 21 guided through the legs of the hall door 19. As is best shown in FIG. 5, the landing door 19 is provided with a triangular key 22 for unlocking the landing door 19, and the triangular key 22 shown in FIG. Rotate in the direction to unlock. Reference numeral 23 denotes a push-up bar which is pushed upward when the triangular key 22 rotates in the direction of arrow A. Reference numeral 24 denotes a landing door 19 via a hanger roller 27 on a rail 26 of a hanger case 25. The hanging hanger plate 28 is a latch fixed on the hanger plate 24 via a shaft 29. When the push-up bar 23 is pushed upward, the hanger plate rotates in the direction of the arrow B, and the latch 3 The bond with 0 is released and locked.
三角キー 2 2には互いにピン結合されたレバ一 3 1、 3 2および 3 3も連結さ れていて、 三角キ一 2 2が矢印 Aの方向に回転したとき、 レバ一 3 1も同じ方向 に回転し、 長いレバー 3 2は下方向に引かれる。 レバ一 3 3はハンガープレート The triangular keys 22 are also connected to the levers 31, 32 and 33, which are pin-coupled to each other. When the triangular key 22 rotates in the direction of arrow A, the lever 31 also moves in the same direction. And the long lever 32 is pulled downward. Lever 1 3 3 is a hanger plate
2 4上に軸 3 4を介して枢着されており、 レバー 3 2が下方に引かれたときに軸Pivoted on shaft 4 via shaft 3 4 and when lever 3 2 is pulled down
3 4を中心に矢印 Dの方向に回転する。 3 Rotate around 4 in the direction of arrow D.
ハンガーケース 2 5上に取り付けられているのは保守モード切換スィッチ 3 5 で、 3 6はレバ一 3 3が矢印 Dの方向に回転したとき上方向へ押上げられるレバ 一である。 レバ一 3 6が上方に移動したときピン結合されたレバー 3 7がケース 3 8に固定された軸 3 9回りに矢印 Eの方向に回転して、 スィツチ 4 0を動作さ せる。 一度保守モード切換スィッチ 3 5が動作すると、 自己保持してしまい、 例 えば図 4に示すような乗場の点検パネル 4 1に設けられた外部のリセットスイツ チ 4 2を操作しないと、 リセヅトしないようにしてある。  Mounted on the hanger case 25 is a maintenance mode switching switch 35, and 36 is a lever that is pushed upward when the lever 33 rotates in the direction of arrow D. When the lever 36 moves upward, the pin-coupled lever 37 rotates around the shaft 39 fixed to the case 38 in the direction of the arrow E to operate the switch 40. Once the maintenance mode switching switch 35 is operated, it will be self-holding.For example, if the external reset switch 42 provided on the landing inspection panel 41 as shown in Fig. It is.
図 4および図 6に於いて、 4 3はピットはしごであり、 最下階乗場の戸 1 9を 解錠してからピット 2で保守作業をする場合に、 ピットはしご 4 3を使い下のピ ット 2に降りて作業をするためのものである。  In Figs. 4 and 6, reference numeral 43 denotes a pit ladder. When maintenance work is to be performed on pit 2 after unlocking door 19 on the lowest floor, the pit ladder 43 is used. It is for getting down to work unit 2 and working.
図 4に於いて、 最下階の乗場に設置した点検パネル 4 1は、 専用の鍵でパネル 4 1を開き保守作業を実施するためのものであり、 点検パネル 4 1内には保守モ 一ド切換スィヅチ 3 5のためのリセットボタン 4 2が設置してある。 4 4は保守 モード切換スィツチ 3 5が動作したときに附勢されてビット 2内を照明する照明 である。 ， 保守作業をピヅト 2内に入って行う場合には、 エレべ一夕が自動モードになつ てしまって定格速度で運転されると危険な状態になる。 従って、 ピット 2に入る 場合には、 エレべ一夕の運転モードを手動の保守モードに切換る必要がある。 こ のために、 最下階の乗場の戸 1 8を三角キー 2 2を使って開錠する。 このとき図 5の三角キー 2 2を矢印 A方向に回転させると、 押上棒 2 3でラッチ 2 8を掛金 3 0から外して乗場の戸 1 8を手で開くことができるようになる。 In FIG. 4, the inspection panel 41 installed at the landing on the lowest floor is used to open the panel 41 with a dedicated key to carry out maintenance work. A reset button 42 for a mode switching switch 35 is provided. Reference numeral 4 denotes an illumination which is activated when the maintenance mode switching switch 35 is operated to illuminate the inside of the bit 2. , If maintenance work is performed inside the port 2, the elevator will be in the automatic mode, and if it is operated at the rated speed, it will be dangerous. Therefore, when entering pit 2, it is necessary to switch the operation mode of the elevator to the manual maintenance mode. To this end, the door 18 of the lowest floor is unlocked using the triangular key 22. At this time, when the triangular key 22 in FIG. 5 is rotated in the direction of arrow A, the latch 28 is removed from the latch 30 with the push-up bar 23, and the landing door 18 can be opened by hand.
この閧錠動作と同時に、 三角キ一 2 2に連結されたレバー 3 1、 3 2、 3 3、 3 6および 3 7からなるリンク機構により保守モード切換スイッチ 3 5が動作し て自己保持される。 このようにしてエレべ一夕が保守モードになると、 エレぺー 夕は手動速度での運転しかできなくなり、 ピット内照明 4 4が O Nして作業に必 要な明るさを与え、 また安全であることを表示して作業員の立入ができるように なると共に、 保守作業の間は、 他の階のエレべ一夕の呼びに応答しない状態にな つて安全に保守作業を実施することができる。  At the same time as this locking operation, the maintenance mode changeover switch 35 is operated and self-held by the link mechanism consisting of the levers 31, 32, 33, 36 and 37 connected to the triangular key 22. . When the elevator is put into the maintenance mode in this way, the elevator can only be operated at the manual speed, and the pit lights 4 4 are turned on to provide the brightness necessary for the work, and it is safe. This will allow the operator to enter and display the message, and during the maintenance work, the worker will not be able to respond to the calls of the elevators on other floors, so that the maintenance work can be performed safely.
ピット内の保守作業が完了したとき、 作業員は最下階の乗場の戸 1 8を開放し て乗場に出て、 点検パネル 4 1を開き、 保守モードのリセットスイッチ 4 2を押 してエレべ一夕を自動モードに戻し、 保守作業を完了させる。 このような作業手 順の概略を図 7のフローチャートに示してある。  When the maintenance work in the pit is completed, the worker opens the door 18 of the landing on the lowest floor to get out of the landing, opens the inspection panel 41, presses the reset switch 42 in maintenance mode, and opens the door. Return to the automatic mode and complete the maintenance work. An outline of such a work procedure is shown in the flowchart of FIG.
上述のような従来の保守モード切替装置によれば、 保守作業をする作業員に訓 練や教育を実施しても、 以下のような場合に、 ヒューマンエラーでエレべ一夕が 自動モードであるにも拘わらず作業員が保守モードであると錯誤してピット 2に 入ってしまうことがあるという問題点があった。  According to the conventional maintenance mode switching device as described above, even if training and education is performed for maintenance workers, the elevator is in automatic mode due to human error in the following cases: Nevertheless, there was a problem that the worker sometimes entered the pit 2 by mistake when in the maintenance mode.
( 1 ) エレべ一夕が展望用などで昇降路が窓で構成されていて、 昇降路の中が 明るいため、 保守モードのセットとリセットとを何度も繰り返すうちに錯誤によ りリセヅト状態でピヅトに入ってしまう。  (1) The elevator is for observation, etc., and the hoistway is made up of windows.The inside of the hoistway is bright, so the maintenance mode is reset by repeated mistakes after repeatedly setting and resetting the maintenance mode. And enter the pitch.
( 2 ) 隣接のエレべ一夕でも保守作業を実施していて、 金網等で区分されてい て、 隣の照明によって昇降路の中が明るいため、 保守モードのセットとリセット とを何度も繰り返すうちに保守モードであると錯誤してリセット状態でピットに 入ってしまう。  (2) Maintenance work is being carried out even at the next elevator, which is divided by wire mesh, etc., and the interior of the hoistway is bright due to the next lighting, so the maintenance mode is set and reset many times. I mistakenly put it in maintenance mode and entered the pit in the reset state.
( 3 ) ビルの管理側の要求により、 常に昇降路内の照明を点灯させて置く場合. があり、 昇降路の中がいずれの場合も明るいため、 保守モードのセットとリセッ 卜とを何度も繰り返すうちに保守モードであると錯誤してリセット状態でビット に入ってしまう。 (3) When the lighting in the hoistway is always turned on at the request of the building management side. Since the inside of the hoistway is bright in any case, the maintenance mode is mistakenly entered as the maintenance mode after repeating the setting and resetting of the maintenance mode many times.
( 4 ) 二人で作業をしていて、 一方の作業員がピヅト内に入っているときに他 の作業員が誤ってリセットボタンを押してしまう。 発明の開示  (4) Two workers are working, and one worker accidentally presses the reset button while one worker is in the pit. Disclosure of the invention
従ってこの発明の目的は、 上述のような課題を解決するためになされたもので 、 保守作業員がビット内に立ち入つたことを直接検出して、 作業員の錯誤による ピット内への立入を防止することのできるエレべ一夕の保守モ一ド切替装置を提 供することである。 また、 保守作業員がピット内に立ち入つたことを直接検出し て、 ェレべ一夕を保守モ一ドに切り替えるエレべ一夕の保守モード切替装置を提 供することである。  Therefore, an object of the present invention is to solve the above-described problem, and directly detects that a maintenance worker has entered a bit, thereby preventing entry into the pit due to a mistake of the worker. The purpose is to provide a maintenance mode switching device for the elevator that can perform the maintenance. Another object is to provide a maintenance mode switching device for directly detecting that a maintenance worker has entered the pit and switching the maintenance mode to the maintenance mode.
この発明によれば、 エレべ一夕の保守モード切替装置は、 エレべ一夕の運転モ ードを保守モードに切替るために、 エレべ一夕ピット内への作業員の立入を検出 して保守モードに切り換える自己保持型の保守モード切換スィツチと、 保守モー ド切換スイッチをリセッ卜するためにエレべ一夕ピヅト内に設けられ、 エレべ一 夕の乗場扉が閉じているときには乗場から操作できないリセットスィツチとを備 えたものである。  According to the present invention, the maintenance mode switching device for the elevator overnight detects the entry of a worker into the elevator pit to switch the operation mode of the elevator to the maintenance mode. A self-holding maintenance mode changeover switch that switches to the maintenance mode, and is installed in the elevator door to reset the maintenance mode changeover switch. It has a reset switch that cannot be operated.
保守モード切換スィヅチは、 作業員の重量を検出して作業員の立入を検出する 重量検出スィツチであっても良い。  The maintenance mode switching switch may be a weight detection switch that detects the weight of the worker and detects the entry of the worker.
重量検出スィツチは、 ピット内に設けられて作業員がピッ卜に入る時に乗る梯 子と、 この梯子を制限された移動ができるように昇降路壁に対して支持する案内 支持装置と、 作業員の重量による梯子の移動を検出してエレべ一夕を保守モ一ド に切替る検出スィツチとを備えたものでよい。  The weight detection switch is provided in a pit and is provided with a ladder on which an operator rides when entering the pit, a guide and support device for supporting the ladder with respect to a hoistway wall so that the ladder can be moved in a limited manner, And a detection switch for detecting the movement of the ladder due to the weight of the ladder and switching the elevator to the maintenance mode.
保守モード切換スィツチは、 ピット内に設けられて作業員の放出する熱を監視 する感熱スィツチを備えたもので良い。  The maintenance mode switching switch may be provided with a heat-sensitive switch provided in the pit to monitor the heat released by the workers.
リセットスィツチは、 作業者が最下階の乗場から手を延ばして操作できるよう な乗場の入口に近い昇降路内の位置に設けられていても良い。 ， 図面の簡単な説明 The reset switch may be provided at a position in the hoistway near the entrance of the landing where workers can reach and operate from the lowest floor landing. , BRIEF DESCRIPTION OF THE FIGURES
図 1は本発明によるエレべ一夕の保守モ一ド切替装置の一実施形態を示す概略 側面図である。  FIG. 1 is a schematic side view showing an embodiment of an elevator maintenance mode switching device according to the present invention.
図 2は本発明によるエレべ一夕の保守モード切替装置の別の実施形態を示す概 略平面断面図である。  FIG. 2 is a schematic plan sectional view showing another embodiment of the maintenance mode switching device for an elevator according to the present invention.
図 3はこの発明のエレべ一夕の保守モード切替装置を適用できる従来のエレべ FIG. 3 shows a conventional elevator to which the elevator maintenance mode switching device of the present invention can be applied.
—夕の概略図である。 -It is a schematic diagram of the evening.
図 4は従来のエレべ一夕の概略平面断面図である。  FIG. 4 is a schematic plan sectional view of a conventional elevator.
図 5は従来のエレべ一夕の保守モード切替装置を示す正面図である。  FIG. 5 is a front view showing a conventional maintenance mode switching device for an elevator.
図 6は従来のエレべ一夕の保守モ一ド切替装置を示す側面断面図である。 図 7は従来のエレべ一夕の保守モ一ド切替装置に於ける保守モ一ド切替フロ一 チャートである。 発明を実施するための最良の形態  FIG. 6 is a side sectional view showing a conventional maintenance mode switching device for an elevator. FIG. 7 is a maintenance mode switching flowchart in a conventional maintenance mode switching apparatus for an elevator. BEST MODE FOR CARRYING OUT THE INVENTION
図 1および図 2にはこの発明の保守モード切替装置の一実施形態を示す。 図 1 に於いて、 エレべ一夕の最下階の乗場 5 0には扉 1 9、 三方枠 2 0および敷居 2 1を備えた入口 1 8が設けられており、 昇降路 1の壁 5 1には最下階の乗場 5 0 からピヅ ト 2内にまでほぼ垂直方向に延びた梯子 5 2が設けられている。 梯子 5 2は、 その上端部 5 3でピン 5 4で連結されたリンク 5 5を介して昇降路壁 5 1 に固着されたブラケヅト 5 6に連結され、 また下端部 5 7でピン 5 8で連結され たリンク 5 9を介して昇降路壁 5 1に固着されたブラケヅト 6 0に連結されてい る。 従って、 梯子 5 2は昇降路壁 5 1に沿ってほぼ平行に上下運動できる。 この 意味でリンク 5 5および 5 9は、 梯子 5 2を昇降路壁 5 1に対して案内されて制 限された移動ができるように支持する案内支持装置である。  1 and 2 show an embodiment of the maintenance mode switching device of the present invention. In Fig. 1, the landing 50 on the lowest floor of Elevate is provided with an entrance 18 equipped with a door 19, a three-sided frame 20 and a threshold 21. 1 is provided with a ladder 52 extending almost vertically from the landing 50 on the lowest floor to the inside of the pit 2. The ladder 52 is connected to a bracket 56 fixed to the shaft wall 51 via a link 55 connected at its upper end 53 by a pin 54, and to a pin 58 at a lower end 57. It is connected to a bracket 60 fixed to a shaft wall 51 via a connected link 59. Accordingly, the ladder 52 can move up and down substantially in parallel along the shaft wall 51. In this sense, the links 55 and 59 are guide support devices that support the ladder 52 so as to be able to perform a limited movement by being guided with respect to the shaft wall 51.
梯子 5 2の下端 5 7とピット 2の床 6 0との間には圧縮パネ 6 1が設けられて いて、 梯子 5 2をビヅト 2の床 6 0から常時所定の距離だけ離れた位置に保持す るようにしてある。 梯子 5 2の下端 5 7には、 下端 5 7からピヅ ト 2の床 6 0に 向かって延びていて、 梯子 5 2からの突出長さを調節できるボルトであるス,トツ パ 6 2が設けられている。 ストツバ 6 2の突出長さを調節して、 ピヅト 2の床 6 0との間に所定の間隙 Gを形成しておく。 圧縮パネ 6 1の強さは、 通常は梯子 5 2を図示の位置、 即ち梯子 5 2のストッパ 6 2とピット 2の床 6 0との間に間隙 G力 s形成される位置に保持するが、 作業員が保守のためにピット 2内に入ろうと して梯子 5 2に乗ったときには、 作業員の重さにより圧縮パネ 6 1が圧縮されて ストヅパ 6 2がピヅト 2の床 6 0に当接し、 梯子 5 2は間隙 Gが無くなるまで降 下し、 作業員が降りたときには間隙 Gを持つ元の位置に戻るような強さである。 このような梯子 5 2の降下を検出するために、 エレべ一夕の保守モード切替装 置は、 昇降路壁 5 1に取り付けられて梯子 5 2の降下を検出する重量検出型の保 守モード切換スィツチ 6 3を備えている。 図示の例では、 保守モ一ド切換スィッ チ 6 3は、 梯子 5 2を昇降路壁 5 1に連結するリンク 5 5の回動によって作動さ れる自己保持型の検出スイッチである。 保守モード切換スィッチ 6 3は昇降路 1 内で梯子 5 2の降下を検出でき、 昇降路 1あるいはピヅト 2内での作業に邪魔に ならない位置ならばどこに設けても良い。 この意味で保守モード切換スィツチ 6 3はピヅト 2内への作業員の立入を検出する立入検出装置である。 A compression panel 61 is provided between the lower end 57 of the ladder 52 and the floor 60 of the pit 2, and the ladder 52 is always kept at a predetermined distance from the floor 60 of the bit 2. It is done so. At the lower end 57 of the ladder 52, there are bolts extending from the lower end 57 to the floor 60 of the pit 2, which are bolts that can adjust the protruding length from the ladder 52. There are 62. A predetermined gap G is formed between the stopper 62 and the floor 60 of the pipe 2 by adjusting the projecting length of the stopper 62. The strength of the compression panel 61 normally holds the ladder 52 in the position shown in the figure, i.e., a position where a gap G force s is formed between the stopper 62 of the ladder 52 and the floor 60 of the pit 2. However, when the worker gets on the ladder 52 to enter the pit 2 for maintenance, the compression panel 61 is compressed by the weight of the worker and the stopper 62 hits the floor 60 of the port 2. The ladder 52 descends until the gap G disappears, and returns to its original position with the gap G when the worker descends. In order to detect such a drop of the ladder 52, the maintenance mode switching device of the elevator is a weight detection type maintenance mode which is attached to the hoistway wall 51 and detects the drop of the ladder 52. A switching switch 63 is provided. In the illustrated example, the maintenance mode switching switch 63 is a self-holding detection switch that is operated by turning a link 55 that connects the ladder 52 to the hoistway wall 51. The maintenance mode switching switch 63 can detect the descent of the ladder 52 in the hoistway 1 and may be provided at any position where it does not hinder the work in the hoistway 1 or the pit 2. In this sense, the maintenance mode switching switch 63 is an entry detecting device for detecting entry of an operator into the port 2.
エレべ一夕の保守モード切替装置は更に、 自己保持型の保守モ一ド切換スィヅ チ 6 3が作動されて一旦オン位置となった後に、 この保守モード切換スィツチ 6 3をオフ位置にして保守モードを解除して自動定格速度運転に復帰させるための リセットスイッチ 6 4を備えている。 この発明によれば、 このリセットスイッチ 6 4は昇降路 1内の昇降路壁 5 1に取り付けられており、 作業の終了後に作業者 が昇降路 1から出て、 梯子 5 2から最下階の乗場 5 0に移動した後に、 手を延ば して操作できるような乗場の入口 1 8に近い位置に設けられている。 しかしなが ら、 乗場の扉 1 9を閉めた状態では手が昇降路内のリセットスイッチ 6 4にまで 届かない。 このように、 リセットスイッチ 6 4は、 エレべ一夕昇降路 1内に設け られていて、 エレべ一夕の乗場扉 1 9が閉じているときには乗場 5 0から操作で きない。  The maintenance mode switching device of the elevator further switches the maintenance mode switching switch 63 to the off position after the self-maintenance type maintenance mode switching switch 63 is operated and once turned on. A reset switch 64 for releasing the mode and returning to the automatic rated speed operation is provided. According to the present invention, the reset switch 64 is attached to the hoistway wall 51 in the hoistway 1, and after the work is completed, the worker exits from the hoistway 1 and the ladder 52 turns the lowermost floor from the ladder 52. It is located near the entrance 18 of the hall so that you can reach and operate it after moving to the hall 50. However, when the landing door 19 is closed, the hand does not reach the reset switch 64 in the hoistway. As described above, the reset switch 64 is provided in the hoistway 1 of the elevator, and cannot be operated from the landing 50 when the landing door 19 of the elevator is closed.
このようなエレべ一夕の保守モード切替装置を用いたエレペータに於いて、 保 守作業が必要になった場合には、 先ず最下階の乗場 5 0で、 例えば図 5に示すの と同様の三角キ一 2 2、 押上棒 2 3、 ラッチ 2 8および掛金 3 0を備えた鎖錠機 構を開錠する。 この発明のエレべ一夕の保守モード切替装置には、 図 5に示すリ ンク 3 1、 3 2、 3 3、 3 6および 3 7で構成されたリンク機構が設けられてお らず、 このリンク機構により動作される保守モード切替スイッチ 3 5も設けられ ていない。 When maintenance work is required in such an elevator using the maintenance mode switching device for the entire elevator, first, at the landing 50 on the lowest floor, for example, as shown in FIG. Locking machine with triangular key 2 2, push-up bar 23, latch 28 and latch 30 Unlock the structure. The maintenance mode switching device for the elevator according to the present invention does not include a link mechanism including the links 31, 32, 33, 36, and 37 shown in FIG. The maintenance mode changeover switch 35 operated by the link mechanism is not provided.
作業者が閧錠された乗場の戸 1 9を手で開けて、 ビット 2内に入るために昇降 路壁 5 1に設けてある梯子 5 2に乗ると、 作業者の重さで圧縮パネ 6 1が縮んで 梯子 5 2が下がり、 ストヅパ 6 2がビット 2の床 6 0に当たる位置で停止し、 結 果として梯子 5 2は間隙 Gだけ降下する。 この時、 梯子 5 2はリンク 5 5および When the worker opens the locked landing door 19 by hand and rides on the ladder 52 provided on the hoistway wall 51 to enter the bit 2, the compression panel 6 is moved by the weight of the worker. 1 shrinks, the ladder 52 is lowered, and the stop 62 stops at the position where it hits the floor 60 of the bit 2, and as a result, the ladder 52 drops by the gap G. At this time, ladder 5 2 is linked 5 5 and
5 9等の案内支持装置により、 昇降路壁 5 1に対して案内されて制限された移動 が きるように支持されているので、 不安定な動きをすることがなく、 作業者に 不安感を与えることもない。 この梯子 5 2の降下によりリンク 5 5および 5 9が 図 1に矢印 Fで示す方向に回動し、 保守モード切換スィツチ 6 3が作動位置に動 かされて自己保持され、 図 7に示す従来の保守作業と同様に保守モードに入る。 保守モードでは自動定格速度運転ではなく手動速度運転となり、 ピット 2内が作 業のために照明 4 4により照明される。 作業者がピット 2の床に到着して梯子 5 2から降りると、 梯子 5 2は圧縮パネ 6 1の力により上昇して再び図 1の位置に 戻る。 保守モード切換スィツチ 6 3も再びオフ位置に戻るが、 リセヅトスィツチThe guide support device, such as 59, supports the hoistway wall 51 so that it can be guided and moves in a limited manner. I will not give it. As the ladder 52 descends, the links 55 and 59 rotate in the direction indicated by the arrow F in FIG. 1, and the maintenance mode switching switch 63 is moved to the operating position to be self-held. The maintenance mode is entered in the same manner as the maintenance work of. In maintenance mode, manual speed operation is performed instead of automatic rated speed operation, and the inside of pit 2 is illuminated by lights 44 for work. When the worker arrives at the floor of the pit 2 and descends from the ladder 52, the ladder 52 rises by the force of the compression panel 61 and returns to the position shown in FIG. The maintenance mode switch 6 3 also returns to the off position again, but the reset switch
6 4がリセッ卜されていないので保守モードのまま維持される。 Since 6 is not reset, it is maintained in the maintenance mode.
所定の保守作業が終わつたときには、 作業者は再び梯子 5 2を昇ってピット 2 から出ようとするので、 梯子 5 2が降下して保守モード切換スィッチ 6 3は再び ォン位置となるが、 保守モードは維持されたままであるの^エレべ一夕の保守モ ード切替装置全体の動作には影響を与えない。 作業者が梯子 5 2から乗場 5 0に 乗り移って梯子 5 2が図 1に示す位置に復帰した後も、 リセヅトスイッチ 6 4が リセットされていないので保守モードのまま維持される。 従って作業者が保守作 業の途中に例えば器材を取るためにピット 2と乗場 5 0との間を行き来する場合 にも、 その都度保守モードと定格運転モードとの間でモード切換が行われ、 エレ ベ一夕が意図しな 、運転をされてしまうことがない。 保守作業が完全に終了した ときには、 昇降路外部である乗場 5 0から手を延ばして昇降路壁 5 1上のリセヅ トスイッチ 6 4を操作して保守モ一ドをリセットして自動定格速度運転に復帰さ せ、 エレべ一夕の通常サービスを利用者に供する。 When the predetermined maintenance work is completed, the worker goes up the ladder 52 again to get out of the pit 2, so that the ladder 52 descends and the maintenance mode switching switch 63 returns to the ON position. The maintenance mode is maintained, but it does not affect the operation of the entire maintenance mode switching device. Even after the worker moves from the ladder 52 to the landing 50 and the ladder 52 returns to the position shown in FIG. 1, the maintenance mode is maintained because the reset switch 64 is not reset. Therefore, even when the worker moves between the pit 2 and the landing 50 to take equipment during the maintenance work, for example, the mode is switched between the maintenance mode and the rated operation mode each time. Driving is not performed unintentionally at Elevé. When the maintenance work is completely completed, reach out from the landing 50 outside the hoistway and operate the reset switch 64 on the hoistway wall 51 to reset the maintenance mode and run the automatic rated speed operation. Returned to To provide users with the usual services of Elebe overnight.
エレべ一夕の保守モード切替装置は更に、 図 2に示すように、 保守モード切換 のためにビット 2内への作業員の立入を検出する保守モード切換スィツチとして 、 梯子 5 2に乗った作業員の重量を感知して立入を検出するスィツチ 6 3だけで なく、 感熱スィヅチ 6 5をも備えている。 感熱スィツチ 6 5は昇降路壁 5 1のピ ット 2に面した部分に取り付けられていて、 ピット 2の床のほぼ全範囲を作業員 の放出する熱について監視できるようにされた感熱センサであり、 作業員がピッ ト 2内にいることを確実に検知するようにしてある。 この装置に於いては、 感熱 スィツチ 6 5と重量感知型のスィツチ 6 3とを併用するので、 動作の信頼性を高 めることができる。 これらの保守モード切換スイッチは、 それそれ単独で用いる こともできる。 感熱スイッチ 6 5を単独で保守モード切換スイッチとして用いる 場合には、 梯子 5 2を昇降路壁 5 1に固定して、 梯子 5 2の降下を検出するスィ ツチ 6 3の代わりに感熱スィッチ 6 5を回路に接続すれば良い。 産業上の利用可能性  As shown in FIG. 2, the maintenance mode switching device of the elevator further operates on a ladder 52 as a maintenance mode switching switch for detecting the entry of an operator into the bit 2 for the maintenance mode switching. In addition to the switch 63 that detects the onset by sensing the weight of the worker, it also has a heat-sensitive switch 65. The thermal switch 65 is a thermal sensor mounted on the shaft wall 51 facing the pit 2 so that almost the entire area of the pit 2 floor can be monitored for heat released by workers. Yes, to ensure that workers are in pit 2. In this device, since the heat-sensitive switch 65 and the weight-sensitive switch 63 are used in combination, the operation reliability can be improved. These maintenance mode changeover switches can be used independently. When using the thermal switch 65 alone as a maintenance mode switch, the ladder 52 is fixed to the hoistway wall 51, and the switch 63 that detects the descent of the ladder 52 is replaced with the thermal switch 65. Should be connected to the circuit. Industrial applicability
以上のように、 本発明にかかるエレべ一夕の保守モード切替装置は、 特に昇降 路ピッ ト内に卷上機を設置する機械室レスエレべ一夕の保守作業の安全性の改善 のために、 保守作業員がピット内に立ち入つたことを直接検出して、 エレべ一夕 を保守モードに切り替え、 作業員の錯誤によるピット内への立入を防止すること ができる点で有用である。  As described above, the maintenance mode switching device for an elevator according to the present invention is intended to improve the safety of maintenance work especially in a machine room-less elevator in which a hoist is installed in a hoistway pit. This is useful in that it can directly detect that a maintenance worker has entered the pit, switch the elevator to maintenance mode, and prevent entry into the pit due to operator error.

Claims

請 求 の 範 囲 The scope of the claims
1 . エレべ一夕の運転モードを保守モードに切替るために、 エレべ一夕ピヅ ト 内への作業員の立入を検出して保守モードに切り換える自己保持型の保守モード 切換スィツチと、 1. In order to switch the operation mode of the elevator overnight to the maintenance mode, a self-maintenance type maintenance mode switching switch for detecting the entry of a worker into the elevator tower and switching to the maintenance mode,
上記保守モード切換スイッチをリセットするためにエレべ一夕昇降路内に設け られ、 エレべ一夕の乗場扉が閉じているときには乗場から操作できないリセット スィツチとを備えたことを特徴とするエレべ一夕の保守モード切替装置。  A reset switch provided in the elevator hoistway for resetting the maintenance mode changeover switch, wherein the reset switch cannot be operated from the landing when the landing door of the elevator is closed. Overnight maintenance mode switching device.
2 . 上記保守モード切換スィッチが、 作業員の重量を検出して作業員の立入を 検出する重量検出スィツチであることを特徴とする請求項 1記載のエレべ一夕の 保守モード切替装置。 2. The maintenance mode switching device according to claim 1, wherein the maintenance mode switching switch is a weight detection switch that detects an operator's weight by detecting an operator's weight.
3 . 上記重量検出スイッチが、 ピット内に設けられて作業員がピットに入る時 に乗る梯子と、 この梯子を制限された移動ができるように昇降路壁に対して支持 する案内支持装置と、 作業員の重量による上記梯子の移動を検出してエレペータ を保守モードに切替る検出スィツチとを備えたことを特徴とする請求項 1あるい は 2記載のェレべ一夕の保守モード切替装置。 3. A ladder in which the weight detection switch is provided in the pit and on which an operator enters when entering the pit, and a guide support device for supporting the ladder with respect to a hoistway wall so that the ladder can be moved in a limited manner. 3. The maintenance mode switching device according to claim 1 or 2, further comprising a detection switch configured to detect the movement of the ladder due to the weight of a worker and to switch the erepeater to the maintenance mode. .
4 . 上記保守モード切換スィッチが、 ピット内に設けられて作業員の放出する 熱を監視する感熱スィツチを備えたことを特徴とする請求項 1乃至 3のいずれか 記載のエレべ一夕の保守モード切替装置。 4. The maintenance of the elevator according to any one of claims 1 to 3, wherein the maintenance mode switching switch includes a heat-sensitive switch provided in the pit to monitor heat emitted by the worker. Mode switching device.
5 . 上記リセットスィッチは、 作業者が最下階の乗場から手を延ばして操作で きるような乗場の入口に近い昇降路内の位置に設けられていることを特徴とする 請求項 1乃至 4のいずれか記載のエレべ一夕の保守モード切替装置。 5. The reset switch is provided at a position in a hoistway close to an entrance of the landing so that a worker can reach and operate from a landing on the lowest floor. The maintenance mode switching device according to any one of the above items.
PCT/JP2000/002741 2000-04-26 2000-04-26 Elevator maintenance mode switching device WO2001081225A1 (en)

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CN102530664A (en) * 2010-11-26 2012-07-04 东芝电梯株式会社 Fan abnormality detection device of elevator
JP2013523565A (en) * 2010-04-12 2013-06-17 オーチス エレベータ カンパニー Retractable stop for low overhead elevator
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JP2013523565A (en) * 2010-04-12 2013-06-17 オーチス エレベータ カンパニー Retractable stop for low overhead elevator
CN102530664A (en) * 2010-11-26 2012-07-04 东芝电梯株式会社 Fan abnormality detection device of elevator
CN102530664B (en) * 2010-11-26 2014-10-08 东芝电梯株式会社 Fan abnormality detection device of elevator
KR101405169B1 (en) * 2012-09-21 2014-06-13 티센크루프엘리베이터코리아 주식회사 Automatic safety system for upper part of elevator car
JP2019210089A (en) * 2018-06-04 2019-12-12 東芝エレベータ株式会社 Elevator inspection system

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