JPH0416472A - Safety device for elevator - Google Patents

Safety device for elevator

Info

Publication number
JPH0416472A
JPH0416472A JP12003790A JP12003790A JPH0416472A JP H0416472 A JPH0416472 A JP H0416472A JP 12003790 A JP12003790 A JP 12003790A JP 12003790 A JP12003790 A JP 12003790A JP H0416472 A JPH0416472 A JP H0416472A
Authority
JP
Japan
Prior art keywords
turned
door
floor
inspection
detection switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12003790A
Other languages
Japanese (ja)
Inventor
Yasushi Hoshino
星野 裕史
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP12003790A priority Critical patent/JPH0416472A/en
Publication of JPH0416472A publication Critical patent/JPH0416472A/en
Pending legal-status Critical Current

Links

Landscapes

  • Types And Forms Of Lifts (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Door Apparatuses (AREA)

Abstract

PURPOSE:To ensure a space nor inspection and repair in an elevation passage and to improve safety of a work by bringing an elevator into a stop state through the working of an inspection space circuit part when it is detected by a door detecting switch that a floor platform door is opened. CONSTITUTION:A door detecting switch 15 turned ON when a floor platform door 7 at a lowermost floor is opened is mounted on the closed door side of the floor platform door 7. A lowermost floor detecting switch 17 is located to an elevation passage wall 3, and arranged in a manner to be capable of being switched such that it is turned ON when a cage 11 is at an upper floor and turned OFF when the cage 11 is elevated down to a lowermost floor. When, during inspection, the floor platform door 7 is manually opened in a state that the cage 11 is elevated up, the switch 15 is turned ON, and a relay R is excited. Thus, by closing relay contacts r-1 and r-2, a self-holding circuit is formed and even when the door 7 at each floor platform is closed, an inspection space circuit 19 is left turned ON, and a control part 9a of an elevating device 9 is turned OFF. An operation stop state is produced, and a working space in the elevation passage 3 is ensured.

Description

【発明の詳細な説明】 〔考案の目的〕 (産業上の利用分野) この発明はホームエレベータに適する安全装置に関する
ものである。
DETAILED DESCRIPTION OF THE INVENTION [Object of the invention] (Field of industrial application) The present invention relates to a safety device suitable for home elevators.

(従来の技術) これまで木造の建築物は2階以下に限定されていたか、
建築基準法及び同法施行令の一部が改正され、木造3階
建てが可能となった。
(Conventional technology) Until now, wooden buildings were limited to two floors or less.
Part of the Building Standards Act and its enforcement order have been revised, making it possible to build three-story wooden buildings.

一方、社会が高齢化するに従って、住宅内での上下移動
が問題となり、そのひとつの改善策として木造建物にも
エレベータV設置することが認められるようになった。
On the other hand, as society ages, moving up and down within houses has become a problem, and as a solution to this problem, it has become acceptable to install elevators in wooden buildings.

これかホームエレベータであり、このホームエレベータ
は、設置に必要とする空間を最少限とするため、エレベ
ータの乗りかごが上下する昇降路内に、昇降装置及び補
益部品等が設けられた構造となっている。
This is a home elevator, and in order to minimize the space required for installation, this home elevator has a structure in which a lifting device and auxiliary parts are installed in the hoistway where the elevator car goes up and down. ing.

(発明が解決しようとする課題) 前記した如く昇降路内に昇降装置等が設置されるためエ
レベータの点検時において、必ず昇降路内に入る必要が
ある。このために設けられているのが点検スペース確保
スイッチである。この点検スペース確保スイッチは、オ
ンにすると、呼び釦スィッチを押しても乗りかごは設定
した位置までしか動かず、あるいは、停止状態のままと
なり昇降路内に点検用の作業スペースが確保される安全
手段が採られている。
(Problems to be Solved by the Invention) As described above, since the elevator and the like are installed in the hoistway, it is necessary to enter the hoistway when inspecting the elevator. An inspection space securing switch is provided for this purpose. This inspection space securing switch is a safety measure that, when turned on, the car will only move to the set position even if the call button switch is pressed, or will remain stationary, ensuring a work space for inspection within the hoistway. is taken.

しかしながら、この安全手段では、点検スペース確保ス
イッチを入れ忘れて昇降路内に入った場合には、乗りか
ごは通常の運転状態にあるため作業員の安全確保は難し
くなる。
However, with this safety measure, if the operator forgets to turn on the inspection space reservation switch and enters the hoistway, it becomes difficult to ensure the safety of the workers because the car is in a normal operating state.

そこで、この発明にあっては、点検スペース確保スイッ
チの操作を行なわなくても確実に昇降路内に点検、修理
用の作業スペースが確保できるようにしたエレベータの
安全装置を提供することを目的としている。
Therefore, an object of the present invention is to provide an elevator safety device that can secure a working space for inspection and repair in the hoistway without operating an inspection space securing switch. There is.

〔発明の構成〕[Structure of the invention]

(課題を解決するための手段) 前記目的を達成するために、この発明にあっては、昇降
路内に配置された乗りかごを昇降装置によって上下動さ
せるエレベータにおいて、前記エレベータの最下階乗場
ドアの開の時にオンとなるオン・オフ可能なドア検知ス
イッチと、乗りかごが最下階の時に検知してオフとなる
オン・オフ可能な最下階検知スイッチと、オン状態で前
記昇降装置の動きを停止させるオン・オフ可能な点検ス
ペース回路部と、前記最下階検知スイッチのオン状態で
、ドア検知スイッチが乗場ドアの開を検知した時に、リ
レーの励磁によって閉成され前記点検スペース回路部を
オン状態に保持し続けるリレー回路とを備えている。
(Means for Solving the Problems) In order to achieve the above object, the present invention provides an elevator in which a car arranged in a hoistway is moved up and down by a lifting device, and a bottom floor landing of the elevator is provided. A door detection switch that can be turned on and off when the door is opened; a bottom floor detection switch that can be turned on and off when the car is on the lowest floor; and a bottom floor detection switch that can be turned on and off when the car is on the lowest floor; an inspection space circuit section that can be turned on and off to stop the movement of the inspection space, and when the door detection switch detects the opening of the hall door with the bottom floor detection switch in the on state, the inspection space is closed by energization of a relay. It also includes a relay circuit that keeps the circuit section in the on state.

(作用) かかるエレベータの安全装置によれば、乗りかごが上階
に停止した状態において、最下階の乗場ドアを開けると
、ドア検知スイッチが開となったことを検知する。これ
により、リレーの励磁によってリレー回路は閉成状態と
なるため、点検スペース回路はオンの状態となり昇降路
内に、点検、修理用の作業スペースが確保されるように
なる。
(Function) According to this elevator safety device, when the lowest floor landing door is opened while the car is stopped on the upper floor, the door detection switch detects that the door has been opened. As a result, the relay circuit is brought into a closed state by the excitation of the relay, so the inspection space circuit is turned on, and a work space for inspection and repair is secured in the hoistway.

(実施例) 以下、第1図と第2図の図面を参照しながらこの発明の
一実施例を詳細に説明する。
(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings of FIGS. 1 and 2.

第2図において1は昇降路3を形成する昇降路壁、5は
三方枠、7は矢印イ方向にスライド可能な乗場ドアをそ
れぞれ示している。
In FIG. 2, 1 indicates a hoistway wall forming the hoistway 3, 5 indicates a three-sided frame, and 7 indicates a landing door that is slidable in the direction of arrow A.

昇降路3内には昇降装置9によって上下動する乗りかご
11が配置され、この乗りかご11は各階に設けられた
呼び釦スィッチ13を押すことて上下動し、呼び釦スィ
ッチ13を押した階で停止するようになっている。
A car 11 that is moved up and down by a lifting device 9 is arranged in the hoistway 3, and this car 11 is moved up and down by pressing a call button switch 13 provided on each floor, and the car 11 moves up and down by pressing a call button switch 13 provided on each floor. It is designed to stop at

乗場ドア7は、乗りかご11が各階で停止すると同時に
自動で開となる外に、点検時において、キー操作によっ
て乗りかご11がいなくても手動で開けられるようにな
っている。
The landing door 7 not only opens automatically when the car 11 stops at each floor, but also can be opened manually by key operation during inspection even when the car 11 is not present.

一方、最下階の乗場ドア7の閉扉側には、乗場ドア7の
開の時にオンとなるオン中オフ可能なドア検知スイッチ
15が設けられている。また、昇降路壁3には最下階検
知スイッチ17が設けられている。
On the other hand, on the closing side of the landing door 7 on the lowest floor, a door detection switch 15 is provided which is turned on when the landing door 7 is opened and can be turned on and off. Further, a lowest floor detection switch 17 is provided on the hoistway wall 3.

最下階検知スイッチ17は乗りかご11が上階にある時
、閉成されたオンの状態にあり、乗りかご11が最下階
に到達すると開成されたオフの状態に切換可能となる。
The lowest floor detection switch 17 is in a closed on state when the car 11 is on the upper floor, and can be switched to an open off state when the car 11 reaches the lowest floor.

第1図は回路図を示している。この回路図において、1
7は最下階検知スイッチ、15はドア検知スイッチをそ
れぞれ示しており、各スイッチ17.15は直列に接続
されている。
FIG. 1 shows a circuit diagram. In this circuit diagram, 1
Reference numeral 7 indicates a bottom floor detection switch, and 15 indicates a door detection switch, and the switches 17 and 15 are connected in series.

さらに、ドア検知スイッチ15と直列にリレーRか接続
している。このリレーRは電流が流れることで励磁され
第1・第2リレー接点r−1.r−2を閉成とするよう
機能する。
Further, a relay R is connected in series with the door detection switch 15. This relay R is energized by the flow of current, and the first and second relay contacts r-1. It functions to make r-2 closed.

第1リレー接点「−1と第2リレー接点f−2を有する
リレー回路RLは、前記リレーRが−たん励磁されると
前記ドア検知スイッチ15のオン・オフに関係なく閉成
が確保される自己保持回路となっていて、前記ドア検知
スイッチ15を有する回路とは並列接続となっている。
A relay circuit RL having a first relay contact "-1" and a second relay contact f-2 is ensured to be closed regardless of whether the door detection switch 15 is turned on or off when the relay R is energized. It is a self-holding circuit, and is connected in parallel with the circuit having the door detection switch 15.

第1リレー接点r−1を有するリレー回路RLには手動
解除スイッチSが直列に接続されている。
A manual release switch S is connected in series to the relay circuit RL having the first relay contact r-1.

また第2リレー接点r−2を有するリレー回路RLには
点検スペース回路部19が直列に接続されている。
Further, an inspection space circuit section 19 is connected in series to the relay circuit RL having the second relay contact r-2.

点検スペース回路部19は、該回路19に電流が流れた
オンの時に前記昇降装置9の制御部9aを作動停止状態
とするよう機能する。
The inspection space circuit section 19 functions to bring the control section 9a of the lifting device 9 into a non-operational state when the circuit 19 is turned on with current flowing therethrough.

このように構成されたエレベータの安全装置によれば、
通常の運転時において、呼び釦スィッチ13を押すこと
て乗りかご11は上下動し各階に停止する。この場合、
最下階に乗りかご11が下降すると最下階検知スイッチ
17がオフとなるため、ドア検知スイッチ15が開にな
ったことを検知しても空振り状態となりリレーRは励磁
されることはない。したがって、点検スペース回路部1
9はオフ状態のままとなる。
According to the elevator safety device configured in this way,
During normal operation, the car 11 moves up and down by pressing the call button switch 13 and stops at each floor. in this case,
When the car 11 descends to the lowest floor, the lowest floor detection switch 17 is turned off, so even if the door detection switch 15 detects that it is opened, it will be in a missed state and the relay R will not be energized. Therefore, inspection space circuit section 1
9 remains in the off state.

次に、点検時において、乗りかご11を上階に上昇させ
た状態で、乗場ドア7を開けると、ドア検知スイッチ1
5がオンとなり、リレーRが励磁される。したがって、
第1、第2リレー接点「−1、r−2の閉成で自己保持
回路が形成されるため、前記乗場ドア11が閉まったと
しても点検スペース回路部19はオン状態のままとなる
ため、昇降装置9の制御部9aはオフとなり作動停止状
態となる。この結果、昇降路3内に点検、修理用の作業
スペースが確保され安全に作業が行なえるようになる。
Next, during inspection, when the landing door 7 is opened with the car 11 raised to the upper floor, the door detection switch 1
5 is turned on, and relay R is energized. therefore,
Since a self-holding circuit is formed by closing the first and second relay contacts "-1 and r-2," the inspection space circuit section 19 remains in the ON state even if the landing door 11 is closed. The control unit 9a of the lifting device 9 is turned off and the operation is stopped.As a result, a work space for inspection and repair is secured in the hoistway 3, and work can be performed safely.

作業完了後は、手動解除スイッチSを操作すればリレー
Rの励磁が解除され、元の運転状態に入れるようになる
After the work is completed, by operating the manual release switch S, the excitation of the relay R is released and the original operating state can be resumed.

なお、この実施例では作業スペースを昇降路3の下方に
確保するようになっているが、昇降路3の上方に確保す
ることも可能である。この場合、ドア検知スイッチは最
上階乗場ドア側に、また、最上階検出スイッチは昇降路
3の上方に設けられるようになる。また、昇降路壁1に
専用の点検口を設ける場合も同様の手段を採用すること
ができる。
In this embodiment, the work space is secured below the hoistway 3, but it is also possible to secure it above the hoistway 3. In this case, the door detection switch is provided on the top floor landing door side, and the top floor detection switch is provided above the hoistway 3. Further, similar means can be employed when providing a dedicated inspection port in the hoistway wall 1.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、この発明によれば、昇降路内に入
る際に、特別な操作をしなくても、ドア検知スイッチに
よって乗場ドアを開いたことが検知されて点検スペース
回路部が働き、昇降装置を作動停止状態にすることがで
きるため昇降路内に、点検、修理用の作業スペースか確
実に確保され安全に作業が行なえるようになる。
As explained above, according to the present invention, when entering the hoistway, the opening of the landing door is detected by the door detection switch without any special operation, and the inspection space circuit section is activated. Since the lifting device can be brought into a non-operating state, work space for inspection and repair can be reliably secured within the hoistway, allowing work to be carried out safely.

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

第1図はこの発明にかかる安全装置の回路図、第2図は
この発明にかかる乗場ドア廻りの概略図である。 3・・・昇降路 7・・・乗場ドア 11・・・乗りかご 15・・・ドア検出スイッチ 17・・・最下階検出スイッチ 19・・・点検スペース回路部 R・・・・・・リレー RL・・・リレー回路
FIG. 1 is a circuit diagram of the safety device according to the present invention, and FIG. 2 is a schematic diagram of the area around the landing door according to the present invention. 3... Hoistway 7... Landing door 11... Car 15... Door detection switch 17... Bottom floor detection switch 19... Inspection space circuit section R... Relay RL...Relay circuit

Claims (1)

【特許請求の範囲】[Claims] 昇降路内に配置された乗りかごを昇降装置によって上下
動させるエレベータにおいて、前記エレベータの少なく
とも最下階乗場ドアの開の時にオンとなるオン・オフ可
能なドア検知スイッチと、乗りかごが最下階の時に検知
してオフとなるオン・オフ可能な最下階検知スイッチと
、オン状態で前記昇降装置の動きを停止させるオン・オ
フ可能な点検スペース回路部と、前記最下階検知スイッ
チのオン状態で、ドア検知スイッチが乗場ドアの開を検
知した時にリレーの励磁によって閉成され前記点検スペ
ース回路部をオン状態に保持し続けるリレー回路とを備
えていることを特徴とするエレベータの安全装置。
In an elevator in which a car arranged in a hoistway is moved up and down by a lifting device, a door detection switch that can be turned on and off is turned on when at least a bottom floor landing door of the elevator is opened; a bottom floor detection switch that can be turned on and off when the floor is detected and turned off; an inspection space circuit section that can be turned on and off and that stops the movement of the lifting device when it is on; and a relay circuit that is closed by excitation of the relay when a door detection switch detects the opening of a hall door in an on state, and continues to hold the inspection space circuit section in an on state. Device.
JP12003790A 1990-05-11 1990-05-11 Safety device for elevator Pending JPH0416472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12003790A JPH0416472A (en) 1990-05-11 1990-05-11 Safety device for elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12003790A JPH0416472A (en) 1990-05-11 1990-05-11 Safety device for elevator

Publications (1)

Publication Number Publication Date
JPH0416472A true JPH0416472A (en) 1992-01-21

Family

ID=14776346

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12003790A Pending JPH0416472A (en) 1990-05-11 1990-05-11 Safety device for elevator

Country Status (1)

Country Link
JP (1) JPH0416472A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1110900B2 (en) 1999-12-20 2011-07-27 Mitsubishi Elevator Europe B.V. Shaft safety system for an elevator
US8136637B2 (en) 2006-06-30 2012-03-20 Otis Elevator Company Safety device for securing minimum spaces at the top or bottom of an elevator shaft being inspected, and elevator having such safety devices
US8162108B2 (en) 2006-06-30 2012-04-24 Otis Elevator Company Elevator having a limit switch for controlling power to the drive system as an elevator car approaches a shallow pit or a low overhead
EP2325128B1 (en) 2007-10-16 2017-08-23 Inventio AG Lift assembly for people and/or loads with at least one lift cabin

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1110900B2 (en) 1999-12-20 2011-07-27 Mitsubishi Elevator Europe B.V. Shaft safety system for an elevator
US8136637B2 (en) 2006-06-30 2012-03-20 Otis Elevator Company Safety device for securing minimum spaces at the top or bottom of an elevator shaft being inspected, and elevator having such safety devices
US8162108B2 (en) 2006-06-30 2012-04-24 Otis Elevator Company Elevator having a limit switch for controlling power to the drive system as an elevator car approaches a shallow pit or a low overhead
US8365870B2 (en) 2006-06-30 2013-02-05 Otis Elevator Company Foldable handrail and safety switch arrangement on top of an elevator car
EP2325128B1 (en) 2007-10-16 2017-08-23 Inventio AG Lift assembly for people and/or loads with at least one lift cabin

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