JP2004315139A - Safety operation position specifying device for escalator - Google Patents

Safety operation position specifying device for escalator Download PDF

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Publication number
JP2004315139A
JP2004315139A JP2003110495A JP2003110495A JP2004315139A JP 2004315139 A JP2004315139 A JP 2004315139A JP 2003110495 A JP2003110495 A JP 2003110495A JP 2003110495 A JP2003110495 A JP 2003110495A JP 2004315139 A JP2004315139 A JP 2004315139A
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JP
Japan
Prior art keywords
abnormality detection
escalator
storage processing
detection switches
connection circuit
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.)
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JP2003110495A
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Japanese (ja)
Inventor
Masahiro Konya
雅宏 紺谷
Teruyoshi Atsuzawa
輝佳 厚沢
Masahiro Chikara
雅裕 主税
Ryoichi Sakai
亮一 酒井
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Hitachi Building Systems Co Ltd
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Hitachi Building Systems Co Ltd
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Priority to JP2003110495A priority Critical patent/JP2004315139A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety operation position specifying device for an escalator capable of easily specifying an operating abnormality detection switch by a simple configuration and shortening inspection work time after emergency stop. <P>SOLUTION: This safety operation position specifying device for the escalator is provided with a disconnection position detection means 14 for measuring distance up to normally closed contacts 1b to 8b, a storage processing means 15 for detecting operating abnormality detection switches 1 to 8 based on the distance, and a display means 16 for displaying positions of the operating abnormality detection switches 1 to 8. Consequently, distance up to the normally closed contacts 1b to 8b is measured without providing a special device in individual abnormality detection switches 1 to 8, and the operating abnormality detection switches 1 to 8 are detected by the storage processing means 15 for display. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、エスカレータ各部位の異常により動作した異常検出スイッチを特定するエスカレータの安全動作位置特定装置に関する。
【0002】
【従来の技術】
一般にエスカレータでは、駆動機器の異常や乗客の挟まれ事故および巻き込まれ事故を防止するため、エスカレータ各部位の異常発生を検出する異常検出スイッチが複数個所に配置されており、この異常検出スイッチはそれぞれ異常検出時に開路となる接点から形成される直列接続回路を有し、異常検出時にエスカレータを非常停止させるようになっている。このようにして各部位の異常発生を検出した後、安全のために異常検出内容を確認してからエスカレータを復旧するようになっている。しかしながら、いたずらにより異常検出スイッチを動作させた場合には異常検出状況が継続していないため、前記の異常検出内容の特定が困難である。また、エスカレータの駆動機器のいずれかに異常があった場合に、どの駆動機器の異常かを特定するため、全ての異常検出スイッチの状態を点検しなければならず、長時間に亘りエスカレータを停止させるため利用者に多大な迷惑をかけることになる。
【0003】
そこで従来、個々の異常検出スイッチの接点信号を電圧変換して別置の入出力回路基板と、信号処理回路基板と、信号処理基板の情報を表示する携帯用電算機とから成る装置に取り込む構成としているものがある。(例えば、特許文献1参照。)。
【0004】
また、個々の異常検出スイッチの接点信号線を制御装置内のターミナルに集約し直列接続して安全装置回路を構成しているものもある。(例えば、特許文献2参照。)。
【0005】
【特許文献1】
特開平10−31635号公報
(段落番号0006,0007、図1)
【0006】
【特許文献2】
特開平11−343092号公報
(段落番号0010〜0012、図1、図2)
【0007】
【発明が解決しようとする課題】
ところで、上記した従来技術にあって、特開平10−31635号公報に記載されているものでは、異常検出スイッチを特定する回路が異常検出スイッチにそれぞれ必要であり、かつ付加する回路が複雑であるという問題があった。
【0008】
また、上記した従来技術にあって、特開平11−343092号公報に記載されているものでは、保全作業員の到着時に異常状態が解除されていると、異常検出スイッチの特定が困難であるという問題があった。
【0009】
さらに、これらの特開平10−31635号公報および特開平11−343092号公報に記載されているものの両方に共通して、すでに稼動しているエスカレータヘ適用する際、異常検出スイッチと構成機器との往復配線が多いため、改造作業に多大な労力と時間を要し、長時間に亘りエスカレータを停止することになり利用者に多大な迷惑をかけるという問題があった。
【0010】
本発明は、上述した従来技術における実状を鑑みてなされたもので、その目的は、動作した異常検出スイッチを簡便な構成で容易に特定するとともに、エスカレータ非常停止後の点検作業にかかる時間を短縮することのできるエスカレータの安全動作位置特定装置を提供することにある。
【0011】
【課題を解決するための手段】
上記目的を達成するため本発明の請求項1に係わる発明は、所定の各部位に設けられる複数の異常検出スイッチと、これらの異常検出スイッチの異常検出に応じてそれぞれ開路する複数の接点から形成される直列接続回路とを有するエスカレータに設けられ、前記複数の異常検出スイッチのうちの動作した異常検出スイッチを特定するエスカレータの安全動作位置特定装置において、前記複数の異常検出スイッチのいずれかの動作に伴って開路した接点までの距離を測定する断線位置検出手段と、この断線位置検出手段と信号を送受信してデータの記憶および処理を行ない、前記開路した接点までの距離に基づいて、動作した異常検出スイッチを検出する記憶処理手段と、この記憶処理手段から得た情報により前記検出した異常検出スイッチの位置を表示する表示手段とを備えた構成にした。
【0012】
このように構成した請求項1に係わる発明では、異常検出時に開路した接点までの距離を断線位置検出手段により測定して、動作した異常検出スイッチを記憶処理手段により検出して記憶し、動作した異常検出スイッチの位置を表示手段で表示する。これによって、異常検出スイッチの個々に特殊な装置を設けることなく、動作した異常検出スイッチを簡便な構成で容易に特定できるとともに、異常検出スイッチの動作来歴を記録してエスカレータ非常停止後の点検作業に用いることにより、この点検作業にかかる時間を短縮できる。
【0013】
また、本発明の請求項2に係わる発明は、請求項1に係わる発明において、前記断線位置検出手段が、前記直列接続回路の一端にパルスを入射して前記開路した常閉接点からの反射時間を測定する構成にした。
【0014】
このように請求項2に係わる発明では、断線位置検出手段により直列接続回路の一端にパルスを入射して開路した常閉接点からの反射時間を測定するようにしたので、開路した接点までの距離を円滑に求めることができる。
【0015】
また、本発明の請求項3に係わる発明は、請求項1に係わる発明において、前記記憶処理手段が、前記複数の常閉接点までの距離と前記複数の異常検出スイッチの機能名をそれぞれ関連付し初期値として記憶する初期設定モードと、通常運転時の前記異常検出スイッチの動作来歴を記憶するデータ記録モードとを備えた構成にした。
【0016】
このように構成した請求項3に係わる発明では、記憶処理手段を初期設定モードに切り替えた状態で、異常検出スイッチ動作時の接点までの距離と異常検出スイッチの機能名をそれぞれ関連付し初期値として記憶することにより、エスカレータの長さや付加仕様によって個数や取付位置が異なる既稼動エスカレータヘの適用時に、異常検出スイッチ動作時の接点との距離を簡単に設定することができる。
【0017】
また、本発明の請求項4に係わる発明は、請求項1または請求項3に係わる発明において、前記記憶処理手段が、前記直列接続回路の動作信号を取込む信号取込み手段を備えて、前記断線位置検出手段に測定許可信号を与える構成にした。
【0018】
このように請求項4に係わる発明では、記憶処理手段により直列接続回路の動作信号を信号取込み手段に取込むとともに、断線位置検出手段に測定許可信号を与えるので、直列接続回路が非活線状態での測定が可能となり、断線位置検出手段をより簡便に構成できる。
【0019】
また、本発明の請求項5に係わる発明は、請求項2に係わる発明において、前記断線位置検出手段が、前記直列接続回路の状態に応じて前記入射するパルスの波高値および入射時間の間隔を変更する構成にした。
【0020】
このように請求項5に係わる発明では、直列接続回路の状態に応じて入射するパルスの波高値および入射時間の間隔を変更するようにしたので、断線位置検出手段の測定精度を向上させることができる。
【0021】
また、本発明の請求項6に係わる発明は、請求項1〜請求項4のいずれかに係わる発明において、前記記憶処理手段が、外部端末機器との通信手段を備え、前記外部端末機器の記憶内容の読出しや設定を行なう構成にした。
【0022】
このように構成した請求項6に係わる発明では、複数の異常検出スイッチのいずれかが動作してエスカレータが停止した場合など、保全作業員がエスカレータまで到着する以前に通信手段より電話回線などを利用して情報を得ることができ、エスカレータ復旧作業時間をさらに短縮できる。
【0023】
【発明の実施の形態】
以下、本発明のエスカレータの安全動作位置特定装置の実施の形態を図に基づき説明する。
【0024】
図1は本発明の一実施形態に係わるエスカレータの安全動作位置特定装置を示す説明図、図2は本実施形態に設けられる断線位置検出手段の測定原理を説明する図、図3は本実施形態に設けられる記憶処理手段に記憶されるデータを説明する図である。
【0025】
図1に示すエスカレータの各部位には異常検出スイッチ1〜8がそれぞれ設けられており、これらの異常検出スイッチ1〜8の異常検出に応じてそれぞれ開路する複数の常閉接点1b〜8bから直列接続回路9が形成されている。また、エスカレータは、図示しない誘導電動機、減速機および電磁ブレーキで構成され、踏段および移動手摺りを駆動する駆動装置10と、この駆動装置10を制御する制御装置11とを備えている。この制御装置11には、駆動装置10を起動させるエスカレータ起動スイッチ12と、エスカレータに停止信号を出力する安全統括信号体13とが設けられている。このように構成されたエスカレータでは、異常検出スイッチ1〜8のいずれかが動作して常閉接点1b〜8bのいずれかが開路となった場合や、エスカレータ起動スイッチ12が開路した場合には、安全統括信号体13がオフとなりエスカレータが停止する。
【0026】
そして、本実施形態の安全動作位置特定装置は、直列接続回路9、エスカレータ起動スイッチ12および安全統括信号体13に接続される断線位置検出手段14と、この断線位置検出手段14と信号を送受信してデータの記憶および処理を行なうメモリとマイコンからなる記憶処理手段15と、この記憶処理手段15に接続される表示手段16とからなっており、これらの断線位置検出手段14、記憶処理手段15および表示手段16は制御装置11に収納されている。
【0027】
断線位置検出手段14は、異常検出スイッチ1〜8のいずれかの動作に伴って常閉接点1b〜8bのいずれかが開路した場合、図2に示すように、直列接続回路9の一端にパルスを入射して開路した常閉接点1b〜8bからの反射時間を測定することによって、開路した常閉接点1b〜8bまでの距離を検出する。例えば、断線位置検出手段14から遠い距離L1にある常閉接点1bが開路となった場合のパルス反射時間t1と、断線位置検出手段14から近い距離L7にある常閉接点7bが開路となった場合のパルス反射時間t7と、この常閉接点7bからさらに近い距離L8にある常閉接点8bが開路となった場合のパルス反射時間t8とを比較する場合に、これらの反射時間と距離の関係はt1:t7:t8=L1:L7:L8の式で表わすことができる。
【0028】
記憶処理手段15は、開路した常閉接点1b〜8bまでの距離に基づいて、動作した異常検出スイッチ1〜8を特定する。また、記憶処理手段15は、図3に示す初期設定モードのデータとデータ記録モードのデータをあらかじめ記憶している。
【0029】
表示手段16は、記憶処理手段15から得た情報により特定した異常検出スイッチ1〜8の位置、初期設定モードの操作方法、および異常検出スイッチ1〜8の動作来歴を表示する。
【0030】
この実施形態にあっては、例えば、既稼動エスカレータに本実施形態の安全動作位置特定装置を備える場合、まず記憶処理手段15の初期設定モードでは既存の直列接続回路9に断線位置検出手段14、記憶処理手段15および表示手段16を備えた後、各異常検出スイッチ1〜8を意図的に動作させ、開路した常閉接点1b〜8bまでの距離と異常検出スイッチ1〜8の機能名をそれぞれ関連付し初期値として記憶する。
【0031】
このとき、上述したように開路した常閉接点1b〜8bからの反射時間は配線長さに関連付けられるので、断線位置検出手段14は、直列接続回路9の電線路長さに応じて入射パルスの入射時間の間隔を変更する。すなわち、直列接続回路9の電線路長さは、エスカレータの長さや異常検出スイッチ1〜8の経路で異なるため、断線位置検出手段14は、一番遠方にある常閉接点1b用の異常検出スイッチ1を動作状態にしてパルスの反射時間を測定し、その値より若干長い時間を入射時間の間隔とする。また、断線位置検出手段14は、直列接続回路9に図示しない結合器を介してパルス電圧を重畳または検波するとともに、直列接続回路9の印加電圧に応じて機器の故障や誤動作がないように入射パルスの波高値および入射時間の間隔を変更するようになっている。例えば、直列接続回路9の印加電圧が直流48Vの回路であり、機器の許容電圧が直流55Vであれば、入力パルスの波高値を5Vとし、直列接続回路9の印加電圧が直流110Vの回路であり、機器の許容電圧が直流250Vであれば、入力パルスの波高値を10Vとする。
【0032】
次いで、記憶処理手段15を初期設定モードからデータ記録モードに切り替えた後、通常運転時に断線位置検出手段14を動作させる。この状態で異常検出スイッチ1〜8のうちのいずれかの異常検出に伴って常閉接点1b〜8bのいずれかが開路した場合、図2に示すように、直列接続回路9の一端にパルスを入射して開路した常閉接点1b〜8bからの反射時間を測定することにより、開路した常閉接点1b〜8bまでの距離を検出する。
【0033】
このようにして開路した常閉接点1b〜8bまでの距離を検出した場合、その距離または時間データと初期設定モードで記憶したデータを比較して、動作した異常検出スイッチ1〜8を特定し、発生日時等のデータを付加して動作来歴を記憶処理手段15により記憶する。そして、表示手段16により、特定した異常検出スイッチ1〜8の位置、初期設定モードの操作方法および異常検出スイッチ1〜8の動作来歴を表示するようになっている。
【0034】
このように構成した実施形態では、異常検出スイッチ1〜8の個々に特殊な装置を設けることなく、制御装置11内の直列接続回路9のみの改造で構成が可能であり、動作した異常検出スイッチ1〜8を簡便な構成で容易に特定できるとともに、異常検出スイッチ1〜8の動作来歴を記憶処理手段15に記録し、エスカレータ非常停止後の点検作業時に前記の動作来歴を用いることにより、この点検作業にかかる時間を短縮できる。
【0035】
また、本実施形態では、断線位置検出手段14により直列接続回路9の一端にパルスを入射して開路した常閉接点1b〜8bからの反射時間を測定するので、開路した常閉接点1b〜8bまでの距離を円滑に求めることができる。
【0036】
また、本実施形態では、記憶処理手段15を初期設定モードに切り替えた状態で、異常検出スイッチ1〜8の動作時の常閉接点1b〜8bまでの距離と異常検出スイッチ1〜8の機能名をそれぞれ関連付し初期値として記憶することにより、エスカレータの長さや付加仕様によって異常検出スイッチ1〜8の個数や取付位置が異なる既稼動エスカレータヘの適用時に、常閉接点1b〜8bとの距離を簡単に設定することができる。
【0037】
また、本実施形態では、直列接続回路9の電線路長さに応じて入射パルスの入射時間の間隔を変更するとともに、直列接続回路9の印加電圧に応じて入射パルスの波高値および入射時間の間隔を変更するようにしたので、機器の故障や誤動作を防止しながら、断線位置検出手段14の検出遅れを極力短くでき、精度の良い検出が可能である。
【0038】
なお、上述した実施形態では、既稼動エスカレータヘ適用する場合について述べたが、新規に設置するエスカレータにも同様の効果が得られる。また、この新規に設置するエスカレータの場合には、異常検出スイッチ1〜8の初期設定データを予め設定することもできる。
【0039】
図4は本発明の他の実施形態に係わるエスカレータの安全動作位置特定装置を示す説明図である。なお、図4において前述した図1〜図3に示すものと同等のものには同一符号を付してある。
【0040】
図4に示す本実施形態では、図1〜図3に示すものと比べて、記憶処理手段15がエスカレータ起動スイッチ12の常開接点12aと安全統括信号体13の常閉接点13bとから信号を取込む図示しない信号取込み手段を備え、断線位置検出手段14に測定許可信号を与える点と、記憶処理手段15に外部端末機器17との図示しない通信手段を備え、外部端末機器17の記憶内容の読出しや設定を行なう点とが異なっており、その他の構成は基本的に同様である。
【0041】
この実施形態にあっては、エスカレータ起動スイッチ12がオンであり、かつ安全統括信号体13がオフの場合、すなわち異常検出スイッチ1〜8が動作した時点で断線位置検出手段14に測定許可信号を与えるので、直列接続回路9が非活線状態で断線位置検出手段14により測定を行なう。
【0042】
このように構成した実施形態では、直列接続回路9が非活線状態での測定が可能であるので、断線位置検出手段14をより簡便に構成することができる。
【0043】
また、本実施形態では、記憶処理手段15に外部端末機器17との通信手段を備えることで、異常検出スイッチ1〜8が動作してエスカレータが停止した場合など、保全作業員がエスカレータまで到着する以前に通信手段より電話回線などを利用して情報を得て、復旧作業時間をさらに短縮することができる。
【0044】
【発明の効果】
以上説明したように本発明の請求項1に係わる発明では、異常検出スイッチの個々に特殊な装置を設けることなく、動作した異常検出スイッチを簡便な構成で容易に特定でき、したがって、既稼動エスカレータヘの適用も短時間の改造作業で実施できるという効果がある。また、異常検出スイッチの動作来歴を記録してエスカレータ非常停止後の点検作業に用いることにより、この点検作業にかかる時間を短縮でき、したがって、エスカレータの不稼働時間を短縮できるという効果もある。
【0045】
また、本発明の請求項2に係わる発明では、断線位置検出手段により直列接続回路の一端にパルスを入射し開路した常閉接点からの反射時間を測定するようにしたので、異常検出時に開路した接点までの距離を円滑に求めることができる。
【0046】
また、本発明の請求項3に係わる発明では、記憶処理手段を初期設定モードに切り替えた状態で、異常検出スイッチ動作時の接点までの距離と異常検出スイッチの機能名をそれぞれ関連付し初期値として記憶することにより、エスカレータの長さや付加仕様によって個数や取付位置が異なる既稼動エスカレータヘの適用時に、接点との距離を簡単に設定することができる。
【0047】
また、本発明の請求項4に係わる発明では、記憶処理手段により断線位置検出手段に測定許可信号を与えるようしたので、直列接続回路が非活線状態での測定が可能となり、断線位置検出手段をより簡便に構成できる。
【0048】
また、本発明の請求項5に係わる発明では、直列接続回路の状態に応じて入射するパルスの波高値および入射時間の間隔を変更するので、断線位置検出手段の測定精度を向上させることができる。
【0049】
また、本発明の請求項6に係わる発明では、異常検出スイッチのいずれかが動作してエスカレータが停止した場合に、保全作業員がエスカレータまで到着する以前に通信手段より電話回線などを利用して情報を得ることができ、エスカレータ復旧作業時間をさらに短縮できる。
【図面の簡単な説明】
【図1】本発明の一実施形態に係わるエスカレータの安全動作位置特定装置を示す説明図である。
【図2】本実施形態に設けられる断線位置検出手段の測定原理を説明する図である。
【図3】本実施形態に設けられる記憶処理手段に記憶されるデータを説明する図である。
【図4】本発明の他の実施形態に係わるエスカレータの安全動作位置特定装置を示す説明図である。
【符号の説明】
1〜8 異常検出スイッチ
1b〜8b 常閉接点(接点)
9 直列接続回路
10 駆動装置
11 制御装置
12 エスカレータ起動スイッチ
13 安全統括信号体
14 断線位置検出手段
15 記憶処理手段
16 表示手段
17 外部端末機器
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an escalator safe operation position specifying device that specifies an abnormality detection switch that has operated due to an abnormality in each part of an escalator.
[0002]
[Prior art]
Generally, in an escalator, in order to prevent an abnormality of a driving device, an accident of a passenger being caught or caught in a passenger, an abnormality detection switch for detecting an abnormality of each part of the escalator is arranged at a plurality of locations. It has a series connection circuit formed from contacts that open when an abnormality is detected, and the escalator is emergency stopped when an abnormality is detected. After detecting the occurrence of an abnormality in each part in this way, the escalator is restored after confirming the details of the abnormality detection for safety. However, when the abnormality detection switch is operated due to mischief, it is difficult to specify the abnormality detection content because the abnormality detection situation is not continued. Also, if any of the escalator's driving devices has an abnormality, the status of all abnormality detection switches must be checked to identify which driving device is abnormal, and the escalator must be stopped for a long time. This causes a lot of trouble for the user.
[0003]
Conventionally, the configuration is such that a contact signal of each abnormality detection switch is converted into a voltage and taken into a device including a separate input / output circuit board, a signal processing circuit board, and a portable computer for displaying information on the signal processing board. There is something that says. (For example, refer to Patent Document 1).
[0004]
In some cases, the contact signal lines of the individual abnormality detection switches are integrated into terminals in the control device and connected in series to form a safety device circuit. (For example, see Patent Document 2).
[0005]
[Patent Document 1]
JP-A-10-31635 (Paragraph Nos. 0006, 0007, FIG. 1)
[0006]
[Patent Document 2]
JP-A-11-343092 (paragraphs 0010 to 0012, FIGS. 1 and 2)
[0007]
[Problems to be solved by the invention]
By the way, in the above-mentioned prior art described in JP-A-10-31635, a circuit for specifying the abnormality detection switch is required for each abnormality detection switch, and the circuit to be added is complicated. There was a problem.
[0008]
Further, in the above-mentioned prior art described in Japanese Unexamined Patent Application Publication No. 11-343092, it is difficult to specify the abnormality detection switch if the abnormal state is canceled when the maintenance worker arrives. There was a problem.
[0009]
Furthermore, when the present invention is applied to an escalator that is already in operation, it is common to both those described in Japanese Patent Application Laid-Open Nos. Hei 10-31635 and Hei 11-343092. Since there are many reciprocating wirings, a large amount of labor and time are required for the remodeling work, and the escalator is stopped for a long time, causing a problem that the user is greatly troubled.
[0010]
The present invention has been made in view of the above-described conventional technology, and aims to easily identify an activated abnormality detection switch with a simple configuration and reduce the time required for inspection work after an escalator emergency stop. It is an object of the present invention to provide an escalator safe operation position specifying device which can perform the operation.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 of the present invention comprises a plurality of abnormality detection switches provided at predetermined portions and a plurality of contacts each of which opens in response to abnormality detection of these abnormality detection switches. An escalator having a serial connection circuit to be operated, and an escalator safe operation position specifying device that specifies an operated abnormality detection switch among the plurality of abnormality detection switches. The disconnection position detecting means for measuring the distance to the contact opened with the disconnection position detecting means, transmitting and receiving signals to and from the disconnection position detecting means, storing and processing data, and operating based on the distance to the contact opened. Storage processing means for detecting an abnormality detection switch, and the abnormality detection switch detected based on information obtained from the storage processing means And to the configuration and display means for displaying the position.
[0012]
In the invention according to claim 1 configured as described above, the distance to the contact opened when the abnormality is detected is measured by the disconnection position detecting means, the operated abnormality detecting switch is detected and stored by the storage processing means, and the operation is performed. The position of the abnormality detection switch is displayed on the display means. This makes it possible to easily identify the operated abnormality detection switch with a simple configuration without providing a special device for each abnormality detection switch, and record the operation history of the abnormality detection switch to perform inspection work after an escalator emergency stop. , The time required for this inspection work can be reduced.
[0013]
According to a second aspect of the present invention, in the first aspect of the present invention, the disconnection position detecting means applies a pulse to one end of the series connection circuit and sets a reflection time from the normally closed contact that has opened. Was measured.
[0014]
As described above, in the invention according to the second aspect, the reflection time from the normally closed contact that has been opened by applying a pulse to one end of the series connection circuit by the disconnection position detecting means is measured, so that the distance to the opened contact is measured. Can be obtained smoothly.
[0015]
In the invention according to claim 3 of the present invention, in the invention according to claim 1, the storage processing unit associates a distance to the plurality of normally closed contacts with a function name of the abnormality detection switch. An initial setting mode for storing as an initial value and a data recording mode for storing the operation history of the abnormality detection switch during normal operation.
[0016]
According to the third aspect of the present invention, when the storage processing unit is switched to the initial setting mode, the distance to the contact when the abnormality detection switch is operated and the function name of the abnormality detection switch are associated with each other, and the initial value is set. By applying this to an already-operated escalator having a different number or mounting position depending on the length or additional specifications of the escalator, it is possible to easily set the distance from the contact when the abnormality detection switch is operated.
[0017]
In the invention according to claim 4 of the present invention, in the invention according to claim 1 or 3, the storage processing means includes signal fetch means for fetching an operation signal of the series connection circuit, and The configuration is such that a measurement permission signal is provided to the position detecting means.
[0018]
In this way, in the invention according to claim 4, the operation signal of the series connection circuit is taken into the signal acquisition means by the storage processing means, and the measurement permission signal is given to the disconnection position detection means. And the disconnection position detecting means can be configured more simply.
[0019]
Further, in the invention according to claim 5 of the present invention, in the invention according to claim 2, the disconnection position detecting means sets a peak value of the incident pulse and an interval between incident times according to a state of the series connection circuit. Changed configuration.
[0020]
As described above, in the invention according to claim 5, since the peak value of the incident pulse and the interval of the incident time are changed according to the state of the series connection circuit, the measurement accuracy of the disconnection position detecting means can be improved. it can.
[0021]
In the invention according to claim 6 of the present invention, in the invention according to any one of claims 1 to 4, the storage processing means includes communication means for communicating with an external terminal device, and the storage processing means stores the external terminal device. The content is read out and set.
[0022]
In the invention according to claim 6 configured as described above, when one of the plurality of abnormality detection switches is operated and the escalator is stopped, a telephone line or the like is used by the communication means before the maintenance worker arrives at the escalator. Information can be obtained, and the escalator recovery work time can be further reduced.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a safe operation position specifying device for an escalator according to the present invention will be described with reference to the drawings.
[0024]
FIG. 1 is an explanatory diagram showing a safe operation position specifying device for an escalator according to an embodiment of the present invention, FIG. 2 is a diagram explaining a measurement principle of a disconnection position detecting means provided in the present embodiment, and FIG. FIG. 4 is a diagram for explaining data stored in a storage processing unit provided in the storage device.
[0025]
Each part of the escalator shown in FIG. 1 is provided with an abnormality detection switch 1 to 8 respectively, and is connected in series from a plurality of normally closed contacts 1 b to 8 b which are respectively opened in response to abnormality detection of these abnormality detection switches 1 to 8. A connection circuit 9 is formed. The escalator is composed of an induction motor, a speed reducer, and an electromagnetic brake (not shown), and includes a driving device 10 that drives the steps and the moving handrail, and a control device 11 that controls the driving device 10. The control device 11 is provided with an escalator activation switch 12 for activating the drive device 10 and a safety general signal body 13 for outputting a stop signal to the escalator. In the escalator configured as described above, when any of the abnormality detection switches 1 to 8 is operated to open any of the normally closed contacts 1b to 8b, or when the escalator start switch 12 is opened, The safety signal body 13 is turned off and the escalator stops.
[0026]
Then, the safety operation position specifying device of the present embodiment transmits and receives signals to and from the disconnection position detecting means 14 connected to the series connection circuit 9, the escalator activation switch 12 and the safety general signal body 13. And a display unit 16 connected to the memory processing unit 15. The disconnection position detecting unit 14, the storage processing unit 15, The display means 16 is housed in the control device 11.
[0027]
As shown in FIG. 2, when one of the normally closed contacts 1b to 8b opens due to the operation of one of the abnormality detection switches 1 to 8, the disconnection position detecting means 14 outputs a pulse to one end of the series connection circuit 9. The distance from the normally-closed contacts 1b to 8b that have been opened is detected by measuring the reflection time from the normally-closed contacts 1b to 8b that have been opened by being incident. For example, the pulse reflection time t1 when the normally closed contact 1b at a distance L1 far from the disconnection position detecting means 14 is open, and the normally closed contact 7b at a distance L7 close to the disconnection position detecting means 14 are open. When comparing the pulse reflection time t7 in the above case with the pulse reflection time t8 when the normally closed contact 8b closer to the normally closed contact 7b becomes an open circuit, the relationship between these reflection times and the distances is compared. Can be expressed by the following equation: t1: t7: t8 = L1: L7: L8.
[0028]
The storage processing unit 15 specifies the operated abnormality detection switches 1 to 8 based on the distance to the normally closed contacts 1b to 8b that have been opened. In addition, the storage processing unit 15 stores data of the initial setting mode and data of the data recording mode shown in FIG. 3 in advance.
[0029]
The display unit 16 displays the positions of the abnormality detection switches 1 to 8 specified by the information obtained from the storage processing unit 15, the operation method of the initial setting mode, and the operation history of the abnormality detection switches 1 to 8.
[0030]
In this embodiment, for example, when the already-operated escalator is provided with the safe operation position specifying device of the present embodiment, first, in the initial setting mode of the storage processing unit 15, the disconnection position detection unit 14, After the storage processing means 15 and the display means 16 are provided, each of the abnormality detection switches 1 to 8 is intentionally operated, and the distance to the normally closed contacts 1b to 8b that have been opened and the function names of the abnormality detection switches 1 to 8 are respectively determined. It is associated and stored as an initial value.
[0031]
At this time, the reflection time from the normally closed contacts 1b to 8b that have been opened as described above is related to the wiring length. Change the interval of incidence time. That is, since the wire path length of the series connection circuit 9 differs depending on the length of the escalator and the path of the abnormality detection switches 1 to 8, the disconnection position detection means 14 is provided with the abnormality detection switch for the farthest normally closed contact 1b. With 1 as an operating state, the reflection time of the pulse is measured, and a time slightly longer than that value is defined as the interval of the incident time. The disconnection position detecting means 14 superimposes or detects a pulse voltage on the series connection circuit 9 via a coupler (not shown) and inputs the pulse voltage so as not to cause a failure or malfunction of the device according to the voltage applied to the series connection circuit 9. The pulse peak value and the interval between the incident times are changed. For example, if the applied voltage of the series connection circuit 9 is a circuit of DC 48 V and the allowable voltage of the device is DC 55 V, the peak value of the input pulse is set to 5 V, and the applied voltage of the series connection circuit 9 is DC 110 V. If the allowable voltage of the device is 250 V DC, the peak value of the input pulse is set to 10 V.
[0032]
Next, after switching the storage processing unit 15 from the initial setting mode to the data recording mode, the disconnection position detection unit 14 is operated during normal operation. In this state, when any one of the normally closed contacts 1b to 8b is opened due to the detection of any one of the abnormality detection switches 1 to 8, a pulse is applied to one end of the series connection circuit 9 as shown in FIG. By measuring the reflection time from the normally closed contacts 1b to 8b that are incident and opened, the distance to the normally closed contacts 1b to 8b that are opened is detected.
[0033]
When the distance to the normally closed contacts 1b to 8b opened in this way is detected, the distance or time data is compared with the data stored in the initial setting mode, and the operated abnormality detection switches 1 to 8 are specified. The operation history is stored by the storage processing unit 15 with data such as the date and time of occurrence. The display means 16 displays the specified positions of the abnormality detection switches 1 to 8, the operation method of the initial setting mode, and the operation history of the abnormality detection switches 1 to 8.
[0034]
In the embodiment configured as described above, it is possible to configure by modifying only the serial connection circuit 9 in the control device 11 without providing a special device for each of the abnormality detection switches 1 to 8 and operate the abnormality detection switch. 1 to 8 can be easily specified with a simple configuration, and the operation history of the abnormality detection switches 1 to 8 is recorded in the storage processing unit 15 and the operation history is used at the time of the inspection work after the escalator emergency stop. The time required for inspection work can be reduced.
[0035]
Further, in this embodiment, since the disconnection position detecting means 14 measures the reflection time from the normally closed contacts 1b to 8b which are opened by applying a pulse to one end of the series connection circuit 9, the normally closed contacts 1b to 8b which have been opened Distance can be obtained smoothly.
[0036]
Further, in the present embodiment, when the storage processing unit 15 is switched to the initial setting mode, the distances to the normally closed contacts 1b to 8b and the function names of the abnormality detection switches 1 to 8 when the abnormality detection switches 1 to 8 operate. Are stored as initial values, and the distance between the normally closed contacts 1b to 8b when applied to an already-operated escalator in which the number and mounting positions of the abnormality detection switches 1 to 8 are different depending on the escalator length and additional specifications. Can be easily set.
[0037]
Further, in the present embodiment, the interval of the incident time of the incident pulse is changed according to the electric wire length of the series connection circuit 9, and the peak value and the incident time of the incident pulse are changed according to the applied voltage of the series connection circuit 9. Since the interval is changed, it is possible to minimize the detection delay of the disconnection position detecting means 14 while preventing the equipment from malfunctioning or malfunctioning, thereby enabling accurate detection.
[0038]
In the above-described embodiment, the case where the present invention is applied to an already-operated escalator has been described. However, a similar effect can be obtained for a newly installed escalator. In the case of the newly installed escalator, the initial setting data of the abnormality detection switches 1 to 8 can be set in advance.
[0039]
FIG. 4 is an explanatory diagram showing a safe operation position specifying device for an escalator according to another embodiment of the present invention. In FIG. 4, the same components as those shown in FIGS. 1 to 3 are denoted by the same reference numerals.
[0040]
In the present embodiment shown in FIG. 4, as compared with the embodiment shown in FIGS. 1 to 3, the storage processing means 15 sends a signal from the normally open contact 12 a of the escalator activation switch 12 and the normally closed contact 13 b of the safety general signal body 13. The storage processing means 15 includes a signal acquisition means (not shown) for acquiring the measurement permission signal to the disconnection position detection means 14 and a communication means (not shown) for communicating with the external terminal equipment 17. The difference is that reading and setting are performed, and other configurations are basically the same.
[0041]
In this embodiment, when the escalator activation switch 12 is on and the safety control signal body 13 is off, that is, when the abnormality detection switches 1 to 8 operate, the measurement permission signal is sent to the disconnection position detection means 14. Therefore, the measurement is performed by the disconnection position detecting means 14 when the series connection circuit 9 is in a non-active state.
[0042]
In the embodiment configured as described above, the measurement can be performed in the inactive state of the series connection circuit 9, so that the disconnection position detection unit 14 can be configured more simply.
[0043]
Further, in the present embodiment, by providing the storage processing unit 15 with a communication unit with the external terminal device 17, the maintenance worker arrives at the escalator when the abnormality detection switches 1 to 8 operate and the escalator stops. Information can be obtained by using a telephone line or the like from the communication means before, and the recovery work time can be further reduced.
[0044]
【The invention's effect】
As described above, in the invention according to claim 1 of the present invention, the operated abnormality detection switch can be easily specified with a simple configuration without providing a special device for each abnormality detection switch. There is an effect that the application to F can be performed with a short remodeling work. Further, by recording the operation history of the abnormality detection switch and using it for the inspection work after the escalator emergency stop, the time required for the inspection work can be reduced, and therefore, the non-operation time of the escalator can be shortened.
[0045]
Further, in the invention according to claim 2 of the present invention, the pulse is incident on one end of the series connection circuit and the reflection time from the normally closed contact which has been opened by the disconnection position detection means is measured. The distance to the contact can be obtained smoothly.
[0046]
Further, in the invention according to claim 3 of the present invention, in a state where the storage processing means is switched to the initial setting mode, the distance to the contact when the abnormality detection switch is operated and the function name of the abnormality detection switch are associated with each other, and the initial value is set. By storing as, the distance from the contact can be easily set when the present invention is applied to an already-operated escalator having a different number and a different mounting position depending on the length and additional specifications of the escalator.
[0047]
Further, in the invention according to claim 4 of the present invention, the measurement permission signal is given to the disconnection position detecting means by the storage processing means, so that the measurement can be performed in the inactive state of the series connection circuit. Can be configured more easily.
[0048]
In the invention according to claim 5 of the present invention, since the peak value of the incident pulse and the interval of the incident time are changed according to the state of the series connection circuit, the measurement accuracy of the disconnection position detecting means can be improved. .
[0049]
Further, in the invention according to claim 6 of the present invention, when one of the abnormality detection switches is operated and the escalator is stopped, before the maintenance worker arrives at the escalator, the maintenance worker utilizes a telephone line or the like from the communication means. Information can be obtained, and the escalator recovery work time can be further reduced.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a safe operation position specifying device for an escalator according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a measurement principle of a disconnection position detection unit provided in the present embodiment.
FIG. 3 is a diagram illustrating data stored in a storage processing unit provided in the embodiment.
FIG. 4 is an explanatory view showing a safe operation position specifying device for an escalator according to another embodiment of the present invention.
[Explanation of symbols]
1-8 Abnormality detection switch 1b-8b Normally closed contact (contact)
Reference Signs List 9 Series connection circuit 10 Driving device 11 Control device 12 Escalator activation switch 13 Safety signal body 14 Disconnection position detecting means 15 Storage processing means 16 Display means 17 External terminal equipment

Claims (6)

所定の各部位に設けられる複数の異常検出スイッチと、これらの異常検出スイッチの異常検出に応じてそれぞれ開路する複数の接点から形成される直列接続回路とを有するエスカレータに設けられ、前記複数の異常検出スイッチのうちの動作した異常検出スイッチを特定するエスカレータの安全動作位置特定装置において、
前記複数の異常検出スイッチのいずれかの動作に伴って開路した接点までの距離を測定する断線位置検出手段と、この断線位置検出手段と信号を送受信してデータの記憶および処理を行ない、前記開路した接点までの距離に基づいて、動作した異常検出スイッチを検出する記憶処理手段と、この記憶処理手段から得た情報により前記検出した異常検出スイッチの位置を表示する表示手段とを備えたことを特徴とするエスカレータの安全動作位置特定装置。
An escalator having a plurality of abnormality detection switches provided at predetermined portions and a series connection circuit formed from a plurality of contacts each of which is opened in response to abnormality detection of the abnormality detection switches; In a safe operation position specifying device of an escalator for specifying an operated abnormality detection switch among the detection switches,
A disconnection position detecting means for measuring a distance to a contact opened by any one of the plurality of abnormality detection switches; transmitting and receiving a signal to and from the disconnection position detecting means to store and process data; Storage processing means for detecting the operated abnormality detection switch based on the distance to the contact point, and display means for displaying the position of the detected abnormality detection switch based on information obtained from the storage processing means. Escalator safe operation position identification device.
前記断線位置検出手段が、前記直列接続回路の一端にパルスを入射して前記開路した接点からの反射時間を測定することを特徴とする請求項1に記載のエスカレータの安全動作位置特定装置。2. The safety operation position specifying device for an escalator according to claim 1, wherein the disconnection position detection unit measures a reflection time from the opened contact by applying a pulse to one end of the series connection circuit. 3. 前記記憶処理手段が、前記複数の接点までの距離と前記複数の異常検出スイッチの機能名をそれぞれ関連付し初期値として記憶する初期設定モードと、通常運転時の前記異常検出スイッチの動作来歴を記憶するデータ記録モードとを備えたことを特徴とする請求項1に記載のエスカレータの安全動作位置特定装置。The initial setting mode in which the storage processing means associates the distances to the plurality of contacts with the function names of the plurality of abnormality detection switches and stores them as initial values, and the operation history of the abnormality detection switches during normal operation. The safety operation position specifying device for an escalator according to claim 1, further comprising a data recording mode for storing. 前記記憶処理手段が、前記直列接続回路の動作信号を取込む信号取込み手段を備えて、前記断線位置検出手段に測定許可信号を与えることを特徴とする請求項1または請求項3に記載のエスカレータの安全動作位置特定装置。The escalator according to claim 1 or 3, wherein the storage processing unit includes a signal capturing unit that captures an operation signal of the serial connection circuit, and supplies a measurement permission signal to the disconnection position detection unit. Safe operating position identification device. 前記断線位置検出手段が、前記直列接続回路の状態に応じて前記入射するパルスの波高値および入射時間の間隔を変更することを特徴とする請求項2に記載のエスカレータの安全動作位置特定装置。3. The safety operation position specifying device for an escalator according to claim 2, wherein the disconnection position detection unit changes a peak value of the incident pulse and an interval of an incident time according to a state of the series connection circuit. 4. 前記記憶処理手段が、外部端末機器との通信手段を備え、前記外部端末機器の記憶内容の読出しや設定を行なうことを特徴とする請求項1〜請求項4のいずれかに記載のエスカレータの安全動作位置特定装置。The escalator according to any one of claims 1 to 4, wherein the storage processing unit includes a communication unit for communicating with an external terminal device, and reads and sets stored contents of the external terminal device. Operating position identification device.
JP2003110495A 2003-04-15 2003-04-15 Safety operation position specifying device for escalator Pending JP2004315139A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006176284A (en) * 2004-12-22 2006-07-06 Mitsubishi Electric Corp Operation display device of safety device for man conveyor
CN102629409A (en) * 2011-02-07 2012-08-08 日立电线株式会社 Theft monitoring device for solar cell module and theft monitoring system using the device
JP2020175969A (en) * 2019-04-16 2020-10-29 フジテック株式会社 Passenger conveyor
JP2021008359A (en) * 2019-07-03 2021-01-28 東芝エレベータ株式会社 Passenger conveyor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006176284A (en) * 2004-12-22 2006-07-06 Mitsubishi Electric Corp Operation display device of safety device for man conveyor
JP4642455B2 (en) * 2004-12-22 2011-03-02 三菱電機株式会社 Operation display device for safety device for man conveyor
CN102629409A (en) * 2011-02-07 2012-08-08 日立电线株式会社 Theft monitoring device for solar cell module and theft monitoring system using the device
JP2020175969A (en) * 2019-04-16 2020-10-29 フジテック株式会社 Passenger conveyor
JP6992784B2 (en) 2019-04-16 2022-01-13 フジテック株式会社 Passenger conveyor
JP2021008359A (en) * 2019-07-03 2021-01-28 東芝エレベータ株式会社 Passenger conveyor

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