JP2005016239A

JP2005016239A - Shutter and its operation confirming method

Info

Publication number: JP2005016239A
Application number: JP2003185345A
Authority: JP
Inventors: Kazuhisa Ozawa; 澤一久小; Masaru Hitomi; 見賢人; Hiroatsu Oba; 場広敦大; Itsuki Takada; 田巖高; Kazuyuki Iizuka; 塚一行飯; Nobukazu Kimura; 村信和木
Original assignee: TOSTEM SUZUKI SHUTTER Manufacturing CO L; Tostem Corp; Tostem Suzuki Shutter Manufacturing Co Ltd
Current assignee: TOSTEM SUZUKI SHUTTER Manufacturing CO L; Tostem Corp; Tostem Suzuki Shutter Manufacturing Co Ltd
Priority date: 2003-06-27
Filing date: 2003-06-27
Publication date: 2005-01-20

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shutter for confirming opening and closing operation in a simple method even when the number of sensors is numerous by surely carrying out operation confirmation and disconnection detection of a plurality of the sensors in a short time. <P>SOLUTION: The opening and closing control part of the shutter comprises: an opening and closing discrimination means for discriminating an opening and closing state of the shutter on the basis of an output signal of each sensor when receiving an operation confirmation instruction from the outside; a real drive means restored to a state before drive next by driving a motor-operated opening and closing machine only in a prescribed time in the state in which an opening confirmation sensor, an upper limit sensor, a closing confirmation sensor and a lower limit are not detected; an idling drive means restored to the state before drive next by making a clutch a non-conductive state, and driving the motor-operated opening and closing machine in the state in which both of the upper limit and lower limit sensors successively output detection signals; and an operation discrimination means for generating an operation confirmation signal by discriminating whether the output signal of each sensor has a prescribed change. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、開閉動作が正常に行われるか否かを確認する機能を備えたシャッター及びその動作確認方法に関する。
【０００２】
【従来の技術】
シャッターカーテンの開閉制御に用いられ、リミットスイッチで代表されるセンサは、長期間の使用によって故障することがある。センサの故障によってシャッターカーテンが動かなくなったり、場合によって停止しなくなったりすることがあり、最悪の場合には器物の破損や人身に危害を及ぼす虞れもある。
【０００３】
デパート等の開店時にシャッターが開けられなくなってしまうと客が店内に入れなくなり、そのデパートの信用も失われかねない。そこで、デパートのシャッター開閉担当者はシャッターを開放する予定時間よりも１時間ほど前に、シャッターを完全に開け閉めし、正常に動作をするか否かの確認作業を行っているところもあるとの事。
【０００４】
このシャッターの動作確認時には用心のために担当者が立ち会わなければならず、１台当たりの開閉に数分の時間を要するとすれば、数十台のシャッターの全ての動作を確認するには相当な時間、例えば、１時間程度必要になる。そこで、短時間にて確実にシヤッターの動作を確認する方法の出現が強く望まれていた。しかし、従来は、制御回路の断線及び未接続を検知し、断線状態による回路信号の未送出を防止して接続状態時の本来の回路機能を得るという断線検知装置が提案されているのみであった（例えば、特許文献１参照。）。
【０００５】
【特許文献】
特開平１０−１９９５７号公報
【０００６】
【発明が解決しようとする課題】
上述した断線検知装置は、簡単な構成にて断線を検知できることから、障害物検知の信頼性を向上させることができ、かつ、障害物検知時のシャッターの開閉を安全化できるという利点がある。しかし、シャッター制御に用いられる複数のセンサの故障を検出することができず、従って、シャッターの全ての動作確認はできないものであった。また、数十台のシャッターに対応できるものでもなかった。
【０００７】
本発明は上記の課題を解決するためになされたもので、その目的は複数のセンサの動作確認及び断線検出を短時間で確実に実行することのできるシャッターを提供することにある。
【０００８】
本発明の他の目的は、台数が多い場合でも簡易な方法にて開閉動作を確認することができ、これによって開閉担当者の負担を軽減することのできるシャッターを提供することにある。
【０００９】
【課題を解決するための手段】
請求項１に係る発明は、
シャッターカーテンを、クラッチを介して、駆動する電動開閉機と、電動開閉機に連動してシャッターカーテンの上下限に対応する範囲で可動体を移動させるモニタ機構と、シャッターカーテンの開放及び閉鎖をそれぞれ確認する開放確認センサ及び閉鎖確認センサと、モニタ機構の可動体がシャッターカーテンの上限位置及び下限位置に対応する位置に移動したことを検出する上限センサ及び下限センサと、外部操作によって少なくとも動作確認指令を出力する外部操作手段と、動作確認指令及び各センサの出力信号に基づいてクラッチ及び電動開閉機を制御する開閉制御部とを備え、
開閉制御部は
外部操作手段から動作確認指令を受けたとき、各センサの出力信号に基づいてシャッターカーテンの開閉状態を判別する開閉判別手段と、
開閉判別手段の判別結果に基づいて、開放確認センサ及び上限センサ、又は、閉鎖確認センサ及び下限センサがそれぞれ検出すべき状態に対して非検出状態になるか、又は所定時間だけ電動開閉機を駆動し、次いで、駆動前の状態に復帰させる実駆動手段と、
クラッチを非伝導状態にすると共に、モニタ機構の上、下限センサの両方が順次検出信号を出力する状態に可動体を移動させるように電動開閉機を駆動し、次いで、駆動前の状態に復帰させる空転駆動手段と、
各センサの出力信号が所定の変化をしたか否かを判別して動作確認信号を発生する動作判別手段と、を備えたシャッターである。
【００１０】
請求項２に係る発明は、
シャッターカーテンを、クラッチを介して、駆動する電動開閉機と、電動開閉機に連動してシャッターカーテンの上下限に対応する範囲で可動体を移動させるモニタ機構と、シャッターカーテンの下端部の座板に押圧力が作用したことを検出する座板確認センサと、シャッターカーテンの開放及び閉鎖をそれぞれ確認する開放確認センサ及び閉鎖確認センサと、モニタ機構の可動体がシャッターカーテンの上限位置及び下限位置に対応する位置に移動したことを検出する上限センサ及び下限センサと、外部操作によって少なくとも動作確認指令を出力する外部操作手段と、動作確認指令及び各センサの出力信号に基づいてクラッチ及び電動開閉機を制御する開閉制御部とを備え、
開閉制御部は
外部操作手段から動作確認指令を受けたとき、各センサの出力信号に基づいてシャッターカーテンが閉鎖状態であることを判別する開閉判別手段と、
開閉判別手段の判別結果に基づいて、閉鎖確認センサ及び下限センサがそれぞれ検出すべき状態に対して非検出状態になるか、又は所定時間だけ電動開閉機を駆動し、さらに、座板確認センサが検出状態になるまで電動開閉機を駆動し、次いで、駆動前の状態に復帰させる実駆動手段と、
クラッチを非伝導状態にすると共に、モニタ機構の上、下限センサの両方が順次検出信号を出力する状態に可動体を移動させるように電動開閉機を駆動し、次いで、駆動前の状態に復帰させる空転駆動手段と、
各センサの出力信号が所定の変化をしたか否かを判別して動作確認信号を発生する動作判別手段と、を備えたシャッターである。
【００１１】
請求項３に係る発明は、
シャッターカーテンを、クラッチを介して、駆動する電動開閉機と、電動開閉機に連動してシャッターカーテンの上下限に対応する範囲で可動体を移動させるモニタ機構と、シャッターカーテンの開放及び閉鎖をそれぞれ確認する開放確認センサ及び閉鎖確認センサと、モニタ機構の可動体がシャッターカーテンの上限位置及び下限位置に対応する位置に移動したことを検出する上限センサ及び下限センサと、外部操作によって少なくとも開閉指令を出力する外部操作手段と、開閉指令及び各センサの出力信号に基づいてクラッチ及び電動開閉機を制御する開閉制御部とを備え、
開閉制御部は、外部操作手段から開指令又は閉指令を受けたとき、下限センサ及び上限センサのいずれか一方の出力信号が検出状態から非検出状態に変化してからの時間を計時し、この時間が所定値を超えても下限センサ及び上限センサのいずれか他方の出力信号が検出状態にならないとき、シャッターカーテンを即、停止させると共に、動作判別手段が故障信号を発生するシャッターである。
【００１２】
請求項４に係る発明は、
シャッターカーテンを、クラッチを介して、駆動する電動開閉機と、電動開閉機に連動してシャッターカーテンの上下限に対応する範囲で可動体を移動させるモニタ機構と、シャッターカーテンの開放及び閉鎖をそれぞれ確認する開放確認センサ及び閉鎖確認センサと、モニタ機構の可動体がシャッターカーテンの上限位置及び下限位置に対応する位置に移動したことを検出する上限センサ及び下限センサと、外部操作によって少なくとも動作確認指令を出力する外部操作手段と、動作確認指令及び各センサの出力信号に基づいてクラッチ及び電動開閉機を制御する開閉制御部とを備えたシャッターの動作確認方法であって、
外部操作手段から動作確認指令を受けたとき、各センサの出力信号に基づいてシャッターカーテンの開閉状態を判別するステップと、
開閉状態の判別結果に基づいて、開放確認センサ及び上限センサ、又は、閉鎖確認センサ及び下限センサがそれぞれ検出すべき状態に対して非検出状態になるか、又は所定時間だけ電動開閉機を駆動し、次いで、駆動前の状態に復帰させるステップと、
クラッチを非伝導状態にすると共に、モニタ機構の上、下限センサの両方が順次検出信号を出力する状態に可動体を移動させるように電動開閉機を駆動し、次いで、駆動前の状態に復帰させるステップと、
各センサの出力信号が所定の変化をしたか否かを判別して動作確認信号を発生するステップと、を順次実行する。
【００１３】
請求項５に係る発明は、
シャッターカーテンを、クラッチを介して、駆動する電動開閉機と、電動開閉機に連動してシャッターカーテンの上下限に対応する範囲で可動体を移動させるモニタ機構と、シャッターカーテンの下端部の座板に押圧力が作用したことを検出する座板確認センサと、シャッターカーテンの開放及び閉鎖をそれぞれ確認する開放確認センサ及び閉鎖確認センサと、モニタ機構の可動体がシャッターカーテンの上限位置及び下限位置に対応する位置に移動したことを検出する上限センサ及び下限センサと、外部操作によって少なくとも動作確認指令を出力する外部操作手段と、動作確認指令及び各センサの出力信号に基づいてクラッチ及び電動開閉機を制御する開閉制御部とを備えたシャッターの動作確認方法であって、、外部操作手段から動作確認指令を受けたとき、各センサの出力信号に基づいてシャッターカーテンが閉鎖状態であることを判別する開閉判別手段と、
閉鎖状態の判別結果に基づいて、閉鎖確認センサ及び下限センサがそれぞれ検出すべき状態に対して非検出状態になるか、又は所定時間だけ電動開閉機を駆動し、さらに、座板確認センサが検出状態になるまで電動開閉機を駆動し、次いで、駆動前の状態に復帰させるステップと、
クラッチを非伝導状態にすると共に、モニタ機構の上、下限センサの両方が順次検出信号を出力する状態に可動体を移動させるように電動開閉機を駆動し、次いで、駆動前の状態に復帰させるステップと、
各センサの出力信号が所定の変化をしたか否かを判別して動作確認信号を発生するステップと、を順次実行する。
【００１４】
請求項６に係る発明は、
シャッターカーテンを、クラッチを介して、駆動する電動開閉機と、電動開閉機に連動してシャッターカーテンの上下限に対応する範囲で可動体を移動させるモニタ機構と、シャッターカーテンの開放及び閉鎖をそれぞれ確認する開放確認センサ及び閉鎖確認センサと、モニタ機構の可動体がシャッターカーテンの上限位置及び下限位置に対応する位置に移動したことを検出する上限センサ及び下限センサと、外部操作によって少なくとも開閉指令を出力する外部操作手段と、開閉指令及び各センサの出力信号に基づいてクラッチ及び電動開閉機を制御する開閉制御部とを備えたシャッターの動作確認方法であって、
外部操作手段から開指令又は閉指令を受けたとき、下限センサ及び上限センサのいずれか一方の出力信号が検出状態から非検出状態に変化してからの時間を計時し、この時間が所定値を超えても下限センサ及び上限センサのいずれか他方の出力信号が検出状態にならないとき、シャッターカーテンを即、停止させると共に、動作判別手段が故障信号を発生する。
【００１５】
【発明の実施の形態】
以下、本発明を図面に示す好適な実施形態に基づいて詳細に説明する。図１は本発明に係る、一般に電動シャッタと呼ばれるシャッターの一実施形態の概略構成図である。同図において、シャッターカーテン１は、開口部上方に設けられたシャッターケース２に内装の巻取りドラム２ａに巻装されている。そして、操作ボックス９の押釦スイッチの操作に伴う電動開閉機３の正逆駆動に基づいて巻取られ、または巻出されるシャッターカーテン１が、開口部の左右に建付けられるガイドレール４に案内されて上下に昇降動をし、これによって開口部の開閉を行う構成になっている。
【００１６】
シャッターカーテン１は、一連状に連結される複数のスラット５と、最下端の座板（座板スラット）６とによって形成され、該座板６の底面に、障害物検知センサの一例である座板スイッチ（テープスイッチ）１１ａが一体的に組込まれている。座板６の上面に送信機１１ｂが組込まれ、該送信機１１ｂは座板スイッチ１１ａが検知した障害物検知信号を送信するようになっている。そして、まぐさ７に設けた受信機１１ｃで受信されて制御盤１０に伝えられ、その信号に基づいて制御盤１０が電動開閉機３に緊急停止指令を出力してシャッターカーテン１を緊急停止させるようになっている。なお、以下の説明で、座板スイッチ１１ａ、送信機１１ｂ及び受信機１１ｃを合わせて座板確認センサ１１と呼び、この座板確認センサ１１から制御盤１０に対して信号Ｓ１１が加えられるものとする。
【００１７】
一方、電動開閉機３には、これに連動してシャッターカーテン１の上下限に対応する範囲で可動体を往復動させるモニタ機構８が装着され、後述するように、可動体によって動作する上限センサ及び下限センサの各出力信号Ｓ１２，Ｓ１３がそれぞれ制御盤１０に加えられる。さらに、まぐさ７には、シャッターカーテン１が全開したことを検出する開放確認センサ１４と、シャッターカーテン１が全閉されたことを検出する閉鎖確認センサ１５が取付けられ、これらの各出力信号Ｓ１４，Ｓ１５が制御盤１０に加えられる。
【００１８】
制御盤１０は操作ボックス９の複数の押釦スイッチの操作に伴う信号と、各センサの出力信号Ｓ１１〜Ｓ１５に基づいて電動開閉機３を駆動すると共に、巻取りドラム２ａの回転軸に取り付けられた後述のクラッチの制御を行う。なお、電動開閉機３は電動機、減速機及びクラッチ等でなるがその詳細については本発明には直接関係しないのでその説明を省略する。
【００１９】
図２は電動開閉機３が巻取りドラム２ａを駆動する動力伝達機構とモニタ機構８の概略構成図であり、このうち、（ａ）は動力伝達機構を部分的に断面で示した平面図であり、（ｂ）はモニタ機構８の内部構成を示す側面図である。ここで、電動開閉機３は、シャッターケース２と連接された側壁２ｂに設けられた孔に出力軸を貫通させた状態でそのフランジ部が側壁２ｂに固定される。電動開閉機３の出力軸の中間部にはモニタ用のスプロケット３１が結合され、側壁２ｂから突出した出力軸の先端に出力用のスプロケット３２が結合されている。また、シャッターケース２に設けられた孔に、図示を省略した軸受け等を介して、巻取りドラム２ａの軸２１が回転可能に支持され、その先端に押さえリング２２が嵌装されると共に、電気的に動力の伝達、遮断の切り換えを行うクラッチ２３と、ドラム用のスブロケット２４とが同心状に装着されている。このドラム用のスブロケット２４と前述した出力用のスプロケット３２とがチェイン２５で結合される。
【００２０】
図２（ｂ）は蓋８ａを除去して矢印Ａの方向から見たモニタ機構８の内部構成を示している。このモニタ機構８は、スプロケット８１がウォーム８２の突出端に結合されている。ウォーム８２にはその両側にウォームホイール８３ａ，８３ｂが噛合しており、さらに、ウォームホイール８３ａ，８３ｂにカム８４ａ，８４ｂが一体的に回転可能に結合されている。カム８４ａ，８４ｂは予め定められた回転位置でアクチュエータ８５ａ，８５ｂを回動させ、これによって、リミットスイッチでなる上限センサ１２及び下限センサ１３が作動するように構成されている。
【００２１】
この図２において、例えば、電動開閉機３を正転させると、スプロケット３２の回転力が、チェイン２５を介して、スブロケット２４に伝達される。このとき、クラッチ２３に対する通電を遮断しておけば、回転力がそのまま軸２１に伝達され、巻取りドラム２ａの回転によりシャッターカーテン１が巻取られる。そして、電動開閉機３を逆転させると、同様にして回転力が伝達されて、シャッターカーテン１は巻出される。モニタ機構８はシャッターカーテン１の開閉状態をモニタするもので、スプロケット３１と８１とをチェイン２６で結合することにより、ウォーム８２が回転される。このとき、電動開閉機３が正転してシャッターカーテン１が巻取られ、その上限に到達したとき上限センサ１２が作動し、逆に、電動開閉機３が逆転してシャッターカーテン１が巻出され、その下限に到達したとき下限センサ１３が作動するように構成されている。一方、クラッチ２３に通電し、回転力が軸２１に伝達しない状態にして、電動開閉機３を正転させるとシャッターカーテン１の開閉状態に拘わらず上限センサ１２を作動させることができ、反対に、電動開閉機３を逆転させるとシャッターカーテン１の開閉状態に拘わらず下限センサ１３を作動させることができる。本実施形態はクラッチ２３に通電した状態で、シャッターカーテン１の状態を保持したまま、電動開閉機３を正転させて上限センサ１２が正常に動作することを確認し、電動開閉機３を逆転させて下限センサ１３が正常に動作することを確認する。
【００２２】
図３は本実施形態に係る制御盤１０の詳細な構成を示すブロック図である。図中、図１又は図２と同一の符号を付したものはそれぞれ同一の要素を示している。この制御盤１０はマイクロコンピュータでなる開閉制御部１１０と、例えば、リレーでなる駆動回路部１２０と、座板確認センサ１１、上限センサ１２、下限センサ１３、開放確認センサ１４及び閉鎖確認センサ１５の動作確認結果を表示するための、例えば、発光ダイオードでなる表示部１３０と、動作確認結果を外部に通信する通信部１４０とを備えている。
【００２３】
このうち、開閉制御部１１０はその機能に着目すると、座板確認センサ１１を備えていないシャッターにも共用可能にするために、その有無を判別する座板使用の有無判別手段１１１と、外部操作手段としての操作ボックス９から動作確認指令を受けたとき、各センサ１１〜１５の出力信号に基づいてシャッターカーテン１の開閉状態を判別するシャッター開閉判別手段１１２と、このシャッター開閉判別手段１１２の判別結果に基づいて、上限センサ１２及び開放確認センサ１４、又は、下限センサ１３及び閉鎖確認センサ１５がそれぞれ検出すべき状態に対して非検出状態になるまで、あるいは、非検出状態になると予測される時間、例えば、３〜４秒間だけ電動開閉機３を駆動し、次いで、元の検出状態に復帰させる実駆動手段１１３と、クラッチ２３を非伝導状態にすると共に、モニタ機構８の上限センサ１２及び下限センサ１３の両方が順次検出信号を出力する状態に、可動体としてのカム８４ａ，８４ｂ及びアクチュエータ８５ａ，８５ｂを移動させるように電動開閉機３を駆動し、次いで、元の状態に復帰させる空転駆動手段１１４と、実駆動手段１１３及び空転駆動手段１１４の駆動状態に対応して各センサ１１〜１５の出力信号が所定の変化をしたか否かを判別して動作確認信号を発生する動作判別手段１１５と、座板使用の有無判別手段１１１が座板使用の信号を出力した状態で座板確認センサ１１が障害物を検知したとき、実駆動手段１１３の出力信号を停止する駆動停止手段１１６とを備えている。
【００２４】
なお、操作ボックス９はシャッターを開放、閉鎖するする開放釦、閉鎖釦、動作途中で停止させる停止釦、前述した動作確認指令を出力する確認釦等を備えている。駆動回路部１２０は一般にトライバとも呼ばれ、実駆動手段１１３、空転駆動手段１１４から受けた駆動信号に対応した電力を電動開閉機３及びクラッチ２３に供給するもので、一般的にはリレーで構成されるがトランジスタ等のスイッチング素子を用いて構成することもできる。表示部１３０は動作判別手段１１５の判別結果を表示するもので、全てのセンサが正常であることの表示に限らず、どのセンサが正常で、どのセンサが故障であるかの表示をすることも可能である。通信部１４０は動作判別手段１１５の判別によって故障が発見されたとき、開閉担当者又はメンテナンス業者に通報するものである。
【００２５】
上記のように構成された制御盤１０のうち、特に、開閉制御部１１０の具体的な処理手順を図４ないし図７のフローチャートに従って説明する。図４は座板確認センサがなく、シャッターが開放されているときの処理手順である。同図において、ステップ２１１にて開放確認センサ１４、上限センサ１２のいずれか一方が「ＯＮ」（検出）であれば、シャッターが開放されていることと認識し、ステップ２１２で電動開閉機３に３〜４秒間通電してシャッターを下降させる。次に、ステップ２１３にて開放確認センサ１４及び上限センサ１２がそれぞれ「ＯＦＦ」（非検出）になったか否かをチェックし、ステップ２１４で電動開閉機３に３〜４秒間通電してシャッターを上昇させ、ステップ２１５で元の検出状態「ＯＮ」に復帰させ、ステップ２１６で停止状態に保持する。この設定時間内に各センサが正常に動作しない場合においては、センサ不良と判断する。次に、ステップ２１７にてクラッチ２３に通電して巻取りドラム２ａに回転力が伝達しないようにして電動開閉機３及びモニタ機構８を空転させて下限センサ１３が「ＯＮ」になるか否かをチェックし、つづいて、ステップ２１８で電動開閉機３及びモニタ機構８を逆方向に空転させて上限センサ１２が「ＯＮ」になるか否かをチェックし、ステップ２１９で上限センサ１２、下限センサ１３、開放確認センサ１４の各出力信号が所定の変化をしたか否かを判別し、動作確認信号を表示部１３０に送信すると共に、故障と判別された場合には通信部１４０に故障信号を送信して、センサの動作確認を終了する。
【００２６】
図５は座板確認センサがなく、シャッターが閉鎖されているときの処理手順である。同図において、ステップ２２１にて閉鎖確認センサ１５、下限センサ１３のいずれか一方が「ＯＮ」であれば、シャッターが閉鎖されていることと認識し、ステップ２２２で電動開閉機３に３〜４秒間通電してシャッターを上昇させる。次に、ステップ２２３にて閉鎖確認センサ１５及び下限センサ１３がそれぞれ「ＯＦＦ」になったか否かをチェックし、ステップ２２４で電動開閉機３に３〜４秒間通電してシャッターを下降させ、ステップ２２５で元の検出状態「ＯＮ」に復帰させ、ステップ２２６で停止状態に保持する。次に、ステップ２２７にてクラッチ２３に通電して巻取りドラム２ａに回転力が伝達しないようにして電動開閉機３及びモニタ機構８を空転させて上限センサ１２が「ＯＮ」になるか否かをチェックし、つづいて、ステップ２２８で電動開閉機３及びモニタ機構８を逆方向に空転させて下限センサ１３が「ＯＮ」になるか否かをチェックし、ステップ２２９で上限センサ１２、下限センサ１３、閉鎖確認センサ１４の検出信号が所定の変化をしたか否かを判別して動作確認信号を送信する。
【００２７】
図６は座板確認センサがあり、シャッターが開放されているときの処理手順である。同図において、ステップ２３１にて開放確認センサ１４、上限センサ１２のいずれか一方が「ＯＮ」であれば、シャッターが開放されていることと認識し、ステップ２３２で電動開閉機３に３〜４秒間通電してシャッターを下降させる。次に、ステップ２３３にて開放確認センサ１４及び上限センサ１２がそれぞれ「ＯＦＦ」になったか否かをチェックし、ステップ２３４で電動開閉機３に３〜４秒間通電してシャッターを上昇させ、ステップ２３５で元の検出状態「ＯＮ」に復帰させ、ステップ２３６で停止状態に保持する。次に、ステップ２３７にてクラッチ２３に通電して巻取りドラム２ａに回転力が伝達しないようにして電動開閉機３及びモニタ機構８を空転させて下限センサ１３が「ＯＮ」になるか否かをチェックし、つづいて、ステップ２３８で電動開閉機３及びモニタ機構８を逆方向に空転させて上限センサ１２が「ＯＮ」になるか否かをチェックし、ステップ２３９で前述したステップ２１８と同様な処理を実行して、センサの動作確認を終了する。
【００２８】
図７は座板確認センサが有り、シャッターが閉鎖されているときの処理手順である。同図において、ステップ２４１にて閉鎖確認センサ１５、下限センサ１３のいずれか一方が「ＯＮ」であれば、シャッターが閉鎖されていることと認識し、ステップ２４２で電動開閉機３に３〜４秒間通電してシャッターを上昇させる。次に、ステップ２４３にて閉鎖確認センサ１５及び下限センサ１３がそれぞれ「ＯＦＦ」になったか否かをチェックし、ステップ２４４で電動開閉機３に通電してシャッターを下降させ、ステップ２４５で閉鎖確認センサ１５を「ＯＮ」状態に、下限センサ１３を「ＯＮ」状態に復帰させる。続いて、ステップ２４６で座板確認センサ１１が「ＯＮ」になったことをチェックし、続いて、ステップ２４７にてシャッターを所定の閉鎖位置、すなわち、座板確認センサ１１が「ＯＦＦ」になる位置に上昇させ、ステップ２４８で停止状態に保持する。次に、ステップ２４９にてクラッチ２３に通電して巻取りドラム２ａに回転力が伝達しないようにして電動開閉機３及びモニタ機構８を空転させて上限センサ１２が「ＯＮ」になるか否かをチェックし、つづいて、ステップ２５０で電動開閉機３及びモニタ機構８を逆方向に空転させて下限センサ１３が「ＯＮ」になるか否かをチェックし、最後に、ステップ２５１で上限センサ１２、下限センサ１３、閉鎖確認センサ１５及び座板確認センサ１１の各出力信号が所定の変化をしたか否かを判別し、動作確認信号を表示部１３０に送信すると共に、故障と判別された場合には通信部１４０に故障信号を送信して、センサの動作確認を終了する。
【００２９】
なお、上述した処理手順のうち、ステップ２１１，２２１，２３１，２４１の各処理が開閉制御部１１０のシャッター開閉判別手段１１２に対応し、ステップ２１２〜２１６，２２２〜２２６，２３２〜２３６，２４２〜２４８の各処理が開閉制御部１１０の実駆動手段１１３に対応し、ステップ２１７，２１８、２２７，２２８、２３７，２３８及び２４９，２５０の各処理が開閉制御部１１０の空転駆動手段１１４に対応し、ステップ２１９，２２９，２３９，２５１の各処理が開閉制御部１１０の動作判別手段１１５に対応している。
【００３０】
かくして、本実施形態によれば、操作ボックス９の動作確認釦を押し操作するだけで、複数のセンサの動作確認及び断線検出を短時間で確実に実行することができる。また、台数が多い場合でも簡易な方法にて開閉動作を確認することができ、これによって開閉担当者の負担を軽減することができる。
【００３１】
ところで、上記の実施形態は電動開閉機３に連動してシャッターカーテン１の上下限に対応する範囲で可動体を移動させるモニタ機構８と、このモニタ機構８の可動体がシャッターカーテン１の上限位置及び下限位置に対応する位置に移動したことを検出する上限センサ１２及び下限センサ１３を備え、これらのセンサの出力信号が変化したことを判別して、表示部１３０及び通信部１４０に判別信号を送信している。そこで、図示を省略するが、動作判別手段１１５にタイマ機能を設け、例えば、操作ボックス９から開指令又は閉指令を受けたとき、下限センサ１２及び上限センサ１３のいずれか一方の出力信号が検出状態から非検出状態に変化してからの時間を計時し、この時間が所定値を超えても下限センサ１２及び上限センサ１３のいずれか他方の出力信号が検出状態にならないとき、動作判別手段が故障信号を発生するようにして表示部１３０及び通信部１４０に加えるようにすれば、台数が多い場合でも簡易な方法にて開閉動作を確認することができるという効果も得られる。
【００３２】
また、上記の実施形態では開閉制御部１１０としてマイクロコンピュータを用いたが、本発明はこれに限定されるものではなく、シーケンサ等、他のデジタル信号処理手段を用いても、上述したと同様な動作を行わせることができる。
【００３３】
さらに、上記の実施形態では、、障害物検知センサとして座板スイッチ１１ａ、送信機１１ｂ及び受信機１１ｃでなる座板確認センサ１１を用いたが、例えば、光学的に障害物を検出するように、他の構成のものにも同様に本発明を適用することができる。
【００３４】
【発明の効果】
以上の説明によって明らかなように、本発明によれば、複数のセンサの動作確認及び断線検出を短時間で確実に実行することのできるシャッター及びその動作確認方法が提供される。また、台数が多い場合でも簡易な方法にて開閉動作を確認することができ、これによって開閉担当者の負担を軽減することのできるシャッター及びその動作確認方法が提供される。
【００３５】
また、本発明はシャッターカーテン自体を開閉動作させることなく、センサ類及び電動開閉機が正常に機能するか否かを確認するものである。このように、シャッターカーテンが開口しないため、シャッターの開閉担当者は全ての動作確認に立ち会う必要がないので、数台のシャッターを同時に動作確認することができるという効果も得られる。
【図面の簡単な説明】
【図１】本発明に係るシャッターの正面図。
【図２】本発明に係るシャッターの一実施形態のうち、動力伝達機構の概略構成図及びモニタ機構の内部構成を示す側面図。
【図３】本発明に係るシャッターの一実施形態のうち、制御盤の詳細な構成を示すブロック図。
【図４】本発明に係るシャッターの実施形態を構成する開閉制御部の機能を持たせたマイクロコンピュータの具体的な処理手順を示すフローチャート。
【図５】本発明に係るシャッターの実施形態を構成する開閉制御部の機能を持たせたマイクロコンピュータの具体的な処理手順を示すフローチャート。
【図６】本発明に係るシャッターの実施形態を構成する開閉制御部の機能を持たせたマイクロコンピュータの具体的な処理手順を示すフローチャート。
【図７】本発明に係るシャッターの実施形態を構成する開閉制御部の機能を持たせたマイクロコンピュータの具体的な処理手順を示すフローチャート。
【符号の説明】
１シャッターカーテン
３電動開閉機
６座板
８モニタ機構
９操作ボックス
１０制御盤
１１座板確認センサ
１２上限センサ
１３下限センサ
１４開放確認センサ
１５閉鎖確認センサ
２３クラッチ
１１０開閉制御部
１１１座板使用の有無判別手段
１１２シャッター開閉判別手段
１１３実駆動手段
１１４空転駆動手段
１１５動作判別手段
１２０駆動回路部
１３０表示部
１４０通信部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shutter having a function of confirming whether an opening / closing operation is normally performed and an operation confirmation method thereof.
[0002]
[Prior art]
A sensor used for opening / closing control of a shutter curtain and represented by a limit switch may fail due to long-term use. The shutter curtain may not move due to a sensor failure or may not stop in some cases. In the worst case, there is a risk of damage to equipment or injury.
[0003]
If the shutter cannot be opened at the opening of a department store or the like, customers cannot enter the store, and the trust of the department store may be lost. Therefore, the person in charge of opening and closing the shutters at the department store has opened and closed the shutter completely about an hour before the scheduled opening time, and is confirming whether it is operating normally. Thing.
[0004]
When checking the operation of this shutter, a person in charge must be present to be careful, and if it takes several minutes to open and close each unit, it is equivalent to checking all the operations of several tens of shutters. For example, about 1 hour is required. Therefore, the emergence of a method for reliably confirming the operation of the shutter in a short time has been strongly desired. However, conventionally, only a disconnection detection device has been proposed that detects disconnection and disconnection of a control circuit, prevents unsent circuit signals due to the disconnection state, and obtains the original circuit function in the connected state. (For example, refer to Patent Document 1).
[0005]
[Patent Literature]
Japanese Patent Laid-Open No. 10-19957
[0006]
[Problems to be solved by the invention]
Since the disconnection detection device described above can detect disconnection with a simple configuration, there are advantages in that the reliability of obstacle detection can be improved and the opening and closing of the shutter at the time of obstacle detection can be made safe. However, failure of a plurality of sensors used for shutter control cannot be detected, and therefore, all the operations of the shutter cannot be confirmed. Also, it was not capable of supporting dozens of shutters.
[0007]
SUMMARY An advantage of some aspects of the invention is to provide a shutter capable of reliably performing operation confirmation and disconnection detection of a plurality of sensors in a short time.
[0008]
Another object of the present invention is to provide a shutter capable of confirming the opening / closing operation by a simple method even when the number of the devices is large, thereby reducing the burden on the person in charge of opening / closing.
[0009]
[Means for Solving the Problems]
The invention according to claim 1
An electric switch that drives the shutter curtain via a clutch, a monitor mechanism that moves the movable body in a range corresponding to the upper and lower limits of the shutter curtain in conjunction with the electric switch, and opening and closing the shutter curtain, respectively An open check sensor and a close check sensor to be checked, an upper limit sensor and a lower limit sensor for detecting that the movable body of the monitor mechanism has moved to a position corresponding to the upper limit position and the lower limit position of the shutter curtain, and at least an operation confirmation command by an external operation And an open / close control unit for controlling the clutch and the electric switch based on the operation confirmation command and the output signal of each sensor,
Open / close control unit
An open / close discriminating means for discriminating an open / closed state of the shutter curtain based on an output signal of each sensor when an operation check command is received from an external operation means;
Based on the discrimination result of the open / close discrimination means, the open check sensor and the upper limit sensor, or the close check sensor and the lower limit sensor are in a non-detection state with respect to the respective detection states, or the electric switch is driven for a predetermined time. Then, actual drive means for returning to the state before driving,
The electric switch is driven to move the movable body to a state in which both the lower limit sensor and the lower limit sensor sequentially output detection signals while the clutch is in a non-conductive state, and then returned to the state before driving. Idle driving means;
An operation determination unit that determines whether or not the output signal of each sensor has changed a predetermined amount and generates an operation confirmation signal.
[0010]
The invention according to claim 2
An electric switch that drives the shutter curtain via a clutch, a monitor mechanism that moves the movable body in a range corresponding to the upper and lower limits of the shutter curtain in conjunction with the electric switch, and a seat plate at the lower end of the shutter curtain The seat plate confirmation sensor for detecting that the pressing force is applied to the shutter, the opening confirmation sensor and the closure confirmation sensor for confirming the opening and closing of the shutter curtain, respectively, and the movable body of the monitor mechanism are at the upper limit position and the lower limit position of the shutter curtain. An upper limit sensor and a lower limit sensor for detecting movement to the corresponding position, an external operation means for outputting at least an operation confirmation command by an external operation, a clutch and an electric switch based on the operation confirmation command and the output signal of each sensor An open / close control unit to control,
Open / close control unit
Open / close discriminating means for discriminating that the shutter curtain is in a closed state based on the output signal of each sensor when an operation confirmation command is received from the external operation means;
Based on the determination result of the opening / closing determination means, the closing confirmation sensor and the lower limit sensor are in a non-detection state with respect to the state to be detected, respectively, or the electric switch is driven for a predetermined time. An actual driving means for driving the electric switch until the detection state is reached, and then returning to the state before the driving;
The electric switch is driven to move the movable body to a state in which both the lower limit sensor and the lower limit sensor sequentially output detection signals while the clutch is in a non-conductive state, and then returned to the state before driving. Idle driving means;
An operation determination unit that determines whether or not the output signal of each sensor has changed a predetermined amount and generates an operation confirmation signal.
[0011]
The invention according to claim 3
An electric switch that drives the shutter curtain via a clutch, a monitor mechanism that moves the movable body in a range corresponding to the upper and lower limits of the shutter curtain in conjunction with the electric switch, and opening and closing the shutter curtain, respectively An opening confirmation sensor and a closing confirmation sensor to be confirmed, an upper limit sensor and a lower limit sensor for detecting that the movable body of the monitor mechanism has moved to a position corresponding to the upper limit position and the lower limit position of the shutter curtain, and at least an opening / closing command by an external operation An external operation means for outputting, and an open / close control unit for controlling the clutch and the electric switch based on an open / close command and an output signal of each sensor,
When the open / close control unit receives an open command or a close command from the external operation means, it measures the time from when the output signal of either the lower limit sensor or the upper limit sensor changes from the detection state to the non-detection state. When the output signal of either the lower limit sensor or the upper limit sensor does not enter the detection state even when the time exceeds the predetermined value, the shutter curtain is immediately stopped, and the operation determination means is a shutter that generates a failure signal.
[0012]
The invention according to claim 4
An electric switch that drives the shutter curtain via a clutch, a monitor mechanism that moves the movable body in a range corresponding to the upper and lower limits of the shutter curtain in conjunction with the electric switch, and opening and closing the shutter curtain, respectively An open check sensor and a close check sensor to be checked, an upper limit sensor and a lower limit sensor for detecting that the movable body of the monitor mechanism has moved to a position corresponding to the upper limit position and the lower limit position of the shutter curtain, and at least an operation confirmation command by an external operation A shutter operation check method comprising: an external operation means for outputting a signal; and an open / close control unit for controlling the clutch and the electric switch based on an operation check command and an output signal of each sensor,
A step of determining the open / close state of the shutter curtain based on the output signal of each sensor when receiving an operation confirmation command from the external operation means;
Based on the determination result of the open / close state, the open confirmation sensor and the upper limit sensor, or the close confirmation sensor and the lower limit sensor are in a non-detection state with respect to the state to be detected, or the electric switch is driven for a predetermined time. Then, returning to the state before driving,
The electric switch is driven to move the movable body to a state in which both the lower limit sensor and the lower limit sensor sequentially output detection signals while the clutch is in a non-conductive state, and then returned to the state before driving. Steps,
A step of determining whether or not the output signal of each sensor has changed in a predetermined manner and generating an operation confirmation signal is sequentially executed.
[0013]
The invention according to claim 5
An electric switch that drives the shutter curtain via a clutch, a monitor mechanism that moves the movable body in a range corresponding to the upper and lower limits of the shutter curtain in conjunction with the electric switch, and a seat plate at the lower end of the shutter curtain The seat plate confirmation sensor for detecting that the pressing force is applied to the shutter, the opening confirmation sensor and the closure confirmation sensor for confirming the opening and closing of the shutter curtain, respectively, and the movable body of the monitor mechanism are at the upper limit position and the lower limit position of the shutter curtain. An upper limit sensor and a lower limit sensor for detecting movement to the corresponding position, an external operation means for outputting at least an operation confirmation command by an external operation, a clutch and an electric switch based on the operation confirmation command and the output signal of each sensor A shutter operation check method comprising an open / close control unit for controlling the shutter, which is operated from an external operation means When subjected to 認指 age, and opening level determination means for determining that the shutter curtain is closed based on the output signals of the sensors,
Based on the determination result of the closed state, the closed confirmation sensor and the lower limit sensor are not detected with respect to the states to be detected, or the electric switch is driven for a predetermined time, and further, the seat plate confirmation sensor detects Driving the electric switch until it reaches a state, and then returning to the state before driving;
The electric switch is driven to move the movable body to a state in which both the lower limit sensor and the lower limit sensor sequentially output detection signals while the clutch is in a non-conductive state, and then returned to the state before driving. Steps,
A step of determining whether or not the output signal of each sensor has changed in a predetermined manner and generating an operation confirmation signal is sequentially executed.
[0014]
The invention according to claim 6
An electric switch that drives the shutter curtain via a clutch, a monitor mechanism that moves the movable body in a range corresponding to the upper and lower limits of the shutter curtain in conjunction with the electric switch, and opening and closing the shutter curtain, respectively An opening confirmation sensor and a closing confirmation sensor to be confirmed, an upper limit sensor and a lower limit sensor for detecting that the movable body of the monitor mechanism has moved to a position corresponding to the upper limit position and the lower limit position of the shutter curtain, and at least an opening / closing command by an external operation A shutter operation confirmation method comprising external operation means for outputting, and an opening / closing control unit for controlling the clutch and the electric switch based on an opening / closing command and an output signal of each sensor,
When an open command or a close command is received from the external operation means, the time from when the output signal of either the lower limit sensor or the upper limit sensor changes from the detection state to the non-detection state is counted, and this time is set to a predetermined value. When the output signal of the other one of the lower limit sensor and the upper limit sensor does not enter the detection state even if the value exceeds the limit value, the shutter curtain is immediately stopped and the operation determination means generates a failure signal.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on preferred embodiments shown in the drawings. FIG. 1 is a schematic configuration diagram of an embodiment of a shutter generally called an electric shutter according to the present invention. In the figure, a shutter curtain 1 is wound around an internal winding drum 2a on a shutter case 2 provided above the opening. The shutter curtain 1 wound or unwound based on the forward / reverse drive of the electric switch 3 accompanying the operation of the pushbutton switch of the operation box 9 is guided by the guide rails 4 installed on the left and right of the opening. Thus, it is configured to move up and down, thereby opening and closing the opening.
[0016]
The shutter curtain 1 is formed by a plurality of slats 5 connected in series and a lowermost seat plate (seat plate slat) 6, and a seat which is an example of an obstacle detection sensor on the bottom surface of the seat plate 6. A plate switch (tape switch) 11a is integrally incorporated. A transmitter 11b is incorporated on the upper surface of the seat plate 6, and the transmitter 11b transmits an obstacle detection signal detected by the seat plate switch 11a. Then, the signal is received by the receiver 11c provided on the lintel 7 and transmitted to the control panel 10, and the control panel 10 outputs an emergency stop command to the electric switch 3 based on the signal to stop the shutter curtain 1 urgently. It is like that. In the following description, the seat plate switch 11a, the transmitter 11b, and the receiver 11c are collectively referred to as a seat plate check sensor 11, and a signal S11 is applied from the seat plate check sensor 11 to the control panel 10. To do.
[0017]
On the other hand, a monitor mechanism 8 that reciprocates the movable body in a range corresponding to the upper and lower limits of the shutter curtain 1 is attached to the electric switch 3 and is connected to the upper limit sensor operated by the movable body as will be described later. The output signals S12 and S13 of the lower limit sensor are applied to the control panel 10, respectively. Further, the lintel 7 is provided with an opening confirmation sensor 14 for detecting that the shutter curtain 1 is fully opened and a closing confirmation sensor 15 for detecting that the shutter curtain 1 is fully closed, and each of these output signals S14. , S15 is added to the control panel 10.
[0018]
The control panel 10 drives the electric switch 3 based on signals associated with the operation of a plurality of pushbutton switches of the operation box 9 and output signals S11 to S15 of each sensor, and is attached to the rotating shaft of the winding drum 2a. The clutch control described later is performed. The electric switch 3 is composed of an electric motor, a speed reducer, a clutch, and the like, but the details thereof are not directly related to the present invention, and thus the description thereof is omitted.
[0019]
FIG. 2 is a schematic configuration diagram of a power transmission mechanism in which the electric switch 3 drives the take-up drum 2a and the monitor mechanism 8. Of these, (a) is a plan view partially showing the power transmission mechanism in cross section. FIG. 6B is a side view showing the internal configuration of the monitor mechanism 8. Here, the electric switch 3 has its flange portion fixed to the side wall 2b in a state where the output shaft is passed through a hole provided in the side wall 2b connected to the shutter case 2. A monitor sprocket 31 is coupled to an intermediate portion of the output shaft of the electric switch 3, and an output sprocket 32 is coupled to the tip of the output shaft protruding from the side wall 2b. The shaft 21 of the take-up drum 2a is rotatably supported in a hole provided in the shutter case 2 via a bearing (not shown) and the like. In addition, a clutch 23 for switching between power transmission and interruption and a drum subrocket 24 are mounted concentrically. The drum subrocket 24 and the aforementioned output sprocket 32 are coupled together by a chain 25.
[0020]
FIG. 2B shows the internal configuration of the monitor mechanism 8 as seen from the direction of arrow A with the lid 8a removed. In the monitor mechanism 8, a sprocket 81 is coupled to a protruding end of a worm 82. Worm wheels 83a and 83b are engaged with the worm 82 on both sides thereof, and cams 84a and 84b are coupled to the worm wheels 83a and 83b so as to be integrally rotatable. The cams 84a and 84b are configured such that the actuators 85a and 85b are rotated at predetermined rotation positions, whereby the upper limit sensor 12 and the lower limit sensor 13 formed of limit switches are operated.
[0021]
In FIG. 2, for example, when the electric switch 3 is rotated forward, the rotational force of the sprocket 32 is transmitted to the subrocket 24 via the chain 25. At this time, if the power supply to the clutch 23 is cut off, the rotational force is transmitted to the shaft 21 as it is, and the shutter curtain 1 is wound up by the rotation of the winding drum 2a. When the electric switch 3 is reversely rotated, the rotational force is transmitted in the same manner, and the shutter curtain 1 is unwound. The monitor mechanism 8 monitors the open / closed state of the shutter curtain 1, and the worm 82 is rotated by connecting the sprockets 31 and 81 with the chain 26. At this time, the electric switch 3 is rotated forward and the shutter curtain 1 is wound up. When the upper limit is reached, the upper limit sensor 12 is activated, and conversely, the electric switch 3 is reversed and the shutter curtain 1 is unwound. When the lower limit is reached, the lower limit sensor 13 is activated. On the other hand, if the clutch 23 is energized and the rotational force is not transmitted to the shaft 21 and the electric switch 3 is rotated forward, the upper limit sensor 12 can be operated regardless of the open / closed state of the shutter curtain 1. When the electric switch 3 is reversed, the lower limit sensor 13 can be operated regardless of the open / closed state of the shutter curtain 1. In the present embodiment, while the state of the shutter curtain 1 is maintained while the clutch 23 is energized, the electric switch 3 is rotated forward to confirm that the upper limit sensor 12 is operating normally, and the electric switch 3 is reversed. Thus, it is confirmed that the lower limit sensor 13 operates normally.
[0022]
FIG. 3 is a block diagram showing a detailed configuration of the control panel 10 according to the present embodiment. In the figure, the same reference numerals as those in FIG. 1 or 2 denote the same elements. The control panel 10 includes an open / close control unit 110 formed of a microcomputer, a drive circuit unit 120 formed of a relay, a seat plate check sensor 11, an upper limit sensor 12, a lower limit sensor 13, an open check sensor 14, and a close check sensor 15. For example, a display unit 130 made of a light emitting diode for displaying the operation confirmation result and a communication unit 140 for communicating the operation confirmation result to the outside are provided.
[0023]
Among these, the opening / closing control unit 110 pays attention to its function, so that it can be shared even with a shutter that does not include the seat plate confirmation sensor 11, and a seat plate use presence / absence discriminating means 111 for discriminating the presence / absence, and an external operation When an operation confirmation command is received from the operation box 9 as a means, a shutter open / close determining means 112 for determining the open / closed state of the shutter curtain 1 based on the output signals of the sensors 11 to 15, and determination by the shutter open / close determining means 112 Based on the result, it is predicted that the upper limit sensor 12 and the opening confirmation sensor 14 or the lower limit sensor 13 and the closure confirmation sensor 15 are in a non-detection state with respect to a state to be detected or are in a non-detection state. Actual driving means 113 that drives the electric switch 3 for a time, for example, 3 to 4 seconds, and then returns to the original detection state. The cams 84a and 84b and the actuators 85a and 85b as movable bodies are moved so that the clutch 23 is in a non-conductive state and both the upper limit sensor 12 and the lower limit sensor 13 of the monitor mechanism 8 sequentially output detection signals. In response to the idle driving means 114 for driving the electric switch 3 and then returning to the original state, and the output signals of the sensors 11 to 15 corresponding to the driving states of the actual driving means 113 and the idling driving means 114 are predetermined. The operation discriminating means 115 for generating an operation confirmation signal by discriminating whether or not the change has been made, and the seat board confirmation sensor 11 is an obstacle in a state in which the seat board use presence / absence discriminating means 111 outputs the seat board use signal. Drive stop means 116 for stopping the output signal of the actual drive means 113 when the signal is detected.
[0024]
The operation box 9 includes an open button for opening and closing the shutter, a close button, a stop button for stopping the operation, and a confirmation button for outputting the above-described operation confirmation command. The drive circuit unit 120 is generally called a tribar, and supplies power corresponding to the drive signals received from the actual drive means 113 and the idling drive means 114 to the electric switch 3 and the clutch 23, and is generally constituted by a relay. However, it can also be configured using a switching element such as a transistor. The display unit 130 displays the determination result of the operation determination unit 115, and not only displays that all the sensors are normal, but also displays which sensors are normal and which are faulty. Is possible. The communication unit 140 notifies a person in charge of opening and closing or a maintenance company when a failure is found by the determination of the operation determining unit 115.
[0025]
Of the control panel 10 configured as described above, a specific processing procedure of the open / close control unit 110 will be described with reference to the flowcharts of FIGS. FIG. 4 shows a processing procedure when there is no seat plate confirmation sensor and the shutter is opened. In the figure, if either the opening confirmation sensor 14 or the upper limit sensor 12 is “ON” (detection) in step 211, it is recognized that the shutter is open, and the electric switch 3 is in step 212. Energize for 3-4 seconds to lower the shutter. Next, in step 213, it is checked whether or not the opening confirmation sensor 14 and the upper limit sensor 12 are each “OFF” (non-detection). In step 214, the electric switch 3 is energized for 3 to 4 seconds to release the shutter. In step 215, the original detection state “ON” is restored, and in step 216, the stop state is maintained. If each sensor does not operate normally within this set time, it is determined that the sensor is defective. Next, in step 217, whether or not the lower limit sensor 13 is turned "ON" by causing the electric switch 3 and the monitor mechanism 8 to idle so that the clutch 23 is energized and the rotational force is not transmitted to the winding drum 2a. Next, in step 218, the electric switch 3 and the monitor mechanism 8 are idled in the reverse direction to check whether the upper limit sensor 12 is “ON”. In step 219, the upper limit sensor 12 and the lower limit sensor are checked. 13. It is determined whether each output signal of the opening confirmation sensor 14 has changed a predetermined amount, and an operation confirmation signal is transmitted to the display unit 130. If a failure is determined, a failure signal is transmitted to the communication unit 140. And the sensor operation check is completed.
[0026]
FIG. 5 shows a processing procedure when there is no seat plate confirmation sensor and the shutter is closed. In the figure, if either the closing confirmation sensor 15 or the lower limit sensor 13 is “ON” in step 221, it is recognized that the shutter is closed, and in step 222, the electric switch 3 is set to 3-4. Energize for 2 seconds to raise the shutter. Next, in step 223, it is checked whether or not the closing confirmation sensor 15 and the lower limit sensor 13 are each “OFF”. In step 224, the electric switch 3 is energized for 3 to 4 seconds to lower the shutter. In 225, the original detection state “ON” is restored, and in step 226, the stop state is maintained. Next, in Step 227, whether or not the upper limit sensor 12 is turned “ON” by causing the electric switch 3 and the monitor mechanism 8 to idle so that the clutch 23 is energized and the rotational force is not transmitted to the winding drum 2a. Next, in step 228, the electric switch 3 and the monitor mechanism 8 are idled in the reverse direction to check whether or not the lower limit sensor 13 is “ON”. In step 229, the upper limit sensor 12 and the lower limit sensor are checked. 13. Determine whether or not the detection signal of the closing confirmation sensor 14 has changed a predetermined amount, and transmit an operation confirmation signal.
[0027]
FIG. 6 shows a processing procedure when there is a seat plate confirmation sensor and the shutter is opened. In the figure, if either the opening confirmation sensor 14 or the upper limit sensor 12 is “ON” in step 231, it is recognized that the shutter is opened, and in step 232, the electric switch 3 is assigned 3-4. Energize for 2 seconds to lower the shutter. Next, in Step 233, it is checked whether or not the opening confirmation sensor 14 and the upper limit sensor 12 are each “OFF”. In Step 234, the electric switch 3 is energized for 3 to 4 seconds to raise the shutter. In 235, the original detection state “ON” is restored, and in step 236, the original detection state is held. Next, in step 237, whether or not the lower limit sensor 13 is turned "ON" by causing the electric switch 3 and the monitor mechanism 8 to idle so that the clutch 23 is energized and the rotational force is not transmitted to the winding drum 2a. Next, in step 238, the electric switch 3 and the monitor mechanism 8 are idled in the reverse direction to check whether the upper limit sensor 12 is “ON”. In step 239, the same as step 218 described above is performed. Then, the sensor operation confirmation is completed.
[0028]
FIG. 7 shows a processing procedure when there is a seat plate confirmation sensor and the shutter is closed. In this figure, if either the closing confirmation sensor 15 or the lower limit sensor 13 is “ON” in step 241, it is recognized that the shutter is closed, and in step 242, the electric switch 3 is set to 3-4. Energize for 2 seconds to raise the shutter. Next, in step 243, it is checked whether or not the closing confirmation sensor 15 and the lower limit sensor 13 are respectively “OFF”. In step 244, the electric switch 3 is energized to lower the shutter, and in step 245, the closing confirmation is made. The sensor 15 is returned to the “ON” state, and the lower limit sensor 13 is returned to the “ON” state. Subsequently, in step 246, it is checked that the seating plate confirmation sensor 11 is “ON”, and in step 247, the shutter is set to a predetermined closed position, that is, the seating plate confirmation sensor 11 is turned “OFF”. The position is raised to a position and held at step 248 in a stopped state. Next, in step 249, whether or not the upper limit sensor 12 is turned “ON” by causing the electric switch 3 and the monitor mechanism 8 to idle so that the clutch 23 is energized and the rotational force is not transmitted to the winding drum 2a. Next, in step 250, the electric switch 3 and the monitor mechanism 8 are idled in the reverse direction to check whether the lower limit sensor 13 is “ON”. Finally, in step 251, the upper limit sensor 12 is checked. When it is determined whether the output signals of the lower limit sensor 13, the closing confirmation sensor 15 and the seat plate confirmation sensor 11 have changed in a predetermined manner, an operation confirmation signal is transmitted to the display unit 130, and a failure is determined. In this case, a failure signal is transmitted to the communication unit 140, and the operation check of the sensor is finished.
[0029]
Of the above-described processing procedures, each of steps 211, 211, 231, and 241 corresponds to the shutter open / close determining unit 112 of the open / close control unit 110, and steps 212 to 216, 222 to 226, 232 to 236, 242, and so on. Each processing of 248 corresponds to the actual driving means 113 of the opening / closing control unit 110, and each processing of steps 217, 218, 227, 228, 237, 238 and 249, 250 corresponds to the idling driving means 114 of the opening / closing control unit 110. Steps 219, 229, 239, and 251 correspond to the operation determination unit 115 of the opening / closing control unit 110.
[0030]
Thus, according to the present embodiment, the operation confirmation and disconnection detection of the plurality of sensors can be reliably performed in a short time by simply pressing the operation confirmation button of the operation box 9. In addition, even when the number is large, the opening / closing operation can be confirmed by a simple method, thereby reducing the burden on the person in charge of opening / closing.
[0031]
By the way, in the above embodiment, the monitor mechanism 8 that moves the movable body within the range corresponding to the upper and lower limits of the shutter curtain 1 in conjunction with the electric switch 3, and the movable body of the monitor mechanism 8 is the upper limit position of the shutter curtain 1. And an upper limit sensor 12 and a lower limit sensor 13 for detecting movement to a position corresponding to the lower limit position, discriminating that the output signals of these sensors have changed, and sending a discrimination signal to the display unit 130 and the communication unit 140 Sending. Therefore, although not shown, the operation determination means 115 is provided with a timer function. For example, when an open command or a close command is received from the operation box 9, one of the output signals of the lower limit sensor 12 and the upper limit sensor 13 is detected. When the time from when the state changes to the non-detection state is counted, and the output signal of either the lower limit sensor 12 or the upper limit sensor 13 does not enter the detection state even if this time exceeds a predetermined value, the operation determination means If the failure signal is generated and added to the display unit 130 and the communication unit 140, the opening / closing operation can be confirmed by a simple method even when the number is large.
[0032]
In the above embodiment, the microcomputer is used as the opening / closing control unit 110. However, the present invention is not limited to this, and the same as described above even when other digital signal processing means such as a sequencer is used. The action can be performed.
[0033]
Furthermore, in the above-described embodiment, the seat plate confirmation sensor 11 including the seat plate switch 11a, the transmitter 11b, and the receiver 11c is used as the obstacle detection sensor. For example, the obstacle is detected optically. The present invention can be applied to other configurations as well.
[0034]
【The invention's effect】
As is apparent from the above description, according to the present invention, there is provided a shutter capable of reliably performing operation confirmation and disconnection detection of a plurality of sensors in a short time and an operation confirmation method thereof. In addition, even when the number is large, a shutter that can check the opening / closing operation by a simple method and thereby reduce the burden on the person in charge of opening / closing, and a method for checking the operation are provided.
[0035]
Further, the present invention confirms whether the sensors and the electric switch function normally without opening / closing the shutter curtain itself. Thus, since the shutter curtain does not open, the person in charge of opening and closing the shutter does not need to be present at all the operation confirmations, so that the effect that the operation of several shutters can be confirmed at the same time is also obtained.
[Brief description of the drawings]
FIG. 1 is a front view of a shutter according to the present invention.
FIG. 2 is a schematic configuration diagram of a power transmission mechanism and a side view showing an internal configuration of a monitor mechanism in one embodiment of the shutter according to the present invention.
FIG. 3 is a block diagram showing a detailed configuration of a control panel in one embodiment of the shutter according to the present invention.
FIG. 4 is a flowchart showing a specific processing procedure of a microcomputer provided with a function of an opening / closing control unit constituting an embodiment of the shutter according to the present invention.
FIG. 5 is a flowchart showing a specific processing procedure of a microcomputer provided with a function of an opening / closing control unit constituting an embodiment of the shutter according to the present invention.
FIG. 6 is a flowchart showing a specific processing procedure of a microcomputer provided with a function of an opening / closing control unit constituting an embodiment of the shutter according to the present invention.
FIG. 7 is a flowchart showing a specific processing procedure of a microcomputer provided with a function of an opening / closing control unit constituting the embodiment of the shutter according to the present invention.
[Explanation of symbols]
1 Shutter curtain
3 Electric switch
6 Seat plate
8 Monitor mechanism
9 Operation box
10 Control panel
11 Seat plate confirmation sensor
12 Upper limit sensor
13 Lower limit sensor
14 Opening confirmation sensor
15 Closure confirmation sensor
23 Clutch
110 Open / close control unit
111 Means for determining whether seat plate is used
112 Shutter opening / closing discrimination means
113 Actual drive means
114 idling drive means
115 Operation discriminating means
120 Drive circuit section
130 Display
140 Communication Department

Claims

An electric switch that drives the shutter curtain via a clutch; a monitor mechanism that moves the movable body in a range corresponding to the upper and lower limits of the shutter curtain in conjunction with the electric switch; and An opening confirmation sensor and a closing confirmation sensor for confirming the closing, an upper limit sensor and a lower limit sensor for detecting that the movable body of the monitor mechanism has moved to a position corresponding to the upper limit position and the lower limit position of the shutter curtain, and external operation External operation means for outputting at least an operation confirmation command by the control unit, and an opening / closing control unit for controlling the clutch and the electric switch based on the operation confirmation command and an output signal of each sensor,
The open / close control unit, when receiving an operation confirmation command from the external operation means, an open / close determining means for determining an open / closed state of the shutter curtain based on an output signal of each sensor;
Based on the determination result of the open / close determination means, the open check sensor and the upper limit sensor, or the close check sensor and the lower limit sensor are in a non-detection state with respect to the respective detection states, or the electric opening / closing for a predetermined time. Actual driving means for driving the machine and then returning to the state before driving;
The electric switch is driven to move the movable body to a state where both the lower limit sensor and the lower limit sensor sequentially output detection signals while the clutch is in a non-conductive state, and then before the drive Idle driving means for returning to the state;
An operation determining means for determining whether or not an output signal of each sensor has changed in a predetermined manner and generating an operation confirmation signal;

An electric switch that drives the shutter curtain via a clutch, a monitor mechanism that moves the movable body in a range corresponding to the upper and lower limits of the shutter curtain in conjunction with the electric switch, and a lower end portion of the shutter curtain A seat plate confirmation sensor for detecting that a pressing force is applied to the seat plate, an opening confirmation sensor and a closure confirmation sensor for confirming opening and closing of the shutter curtain, respectively, and a movable body of the monitor mechanism is provided for the shutter curtain. An upper limit sensor and a lower limit sensor for detecting movement to a position corresponding to the upper limit position and the lower limit position, external operation means for outputting at least an operation confirmation command by an external operation, the operation confirmation command, and an output signal of each sensor An open / close control unit for controlling the clutch and the electric switch based on
The open / close control unit, when receiving an operation confirmation command from the external operation unit, an open / close determination unit that determines that the shutter curtain is in a closed state based on an output signal of each sensor;
Based on the determination result of the open / close determination means, the closing confirmation sensor and the lower limit sensor are in a non-detection state with respect to the state to be detected, respectively, or the electric switch is driven for a predetermined time, and the seat An actual drive means for driving the electric switch until the plate confirmation sensor is in a detection state, and then returning to the state before the drive;
The electric switch is driven to move the movable body to a state where both the lower limit sensor and the lower limit sensor sequentially output detection signals while the clutch is in a non-conductive state, and then before the drive Idle driving means for returning to the state;
An operation determining means for determining whether or not an output signal of each sensor has changed in a predetermined manner and generating an operation confirmation signal;

An electric switch that drives the shutter curtain via a clutch; a monitor mechanism that moves the movable body in a range corresponding to the upper and lower limits of the shutter curtain in conjunction with the electric switch; and An opening confirmation sensor and a closing confirmation sensor for confirming the closing, an upper limit sensor and a lower limit sensor for detecting that the movable body of the monitor mechanism has moved to a position corresponding to the upper limit position and the lower limit position of the shutter curtain, and external operation External operation means for outputting at least an opening / closing command by means of, and an opening / closing control unit for controlling the clutch and the electric switch based on the opening / closing command and an output signal of each sensor,
When the open / close control unit receives an open command or a close command from the external operation means, it measures the time from when the output signal of either the lower limit sensor or the upper limit sensor changes from the detection state to the non-detection state. If the output signal of either the lower limit sensor or the upper limit sensor does not enter the detection state even if this time exceeds a predetermined value, the shutter curtain is immediately stopped and the operation determination means generates a failure signal. shutter.

An electric switch that drives the shutter curtain via a clutch; a monitor mechanism that moves the movable body in a range corresponding to the upper and lower limits of the shutter curtain in conjunction with the electric switch; and An opening confirmation sensor and a closing confirmation sensor for confirming the closing, an upper limit sensor and a lower limit sensor for detecting that the movable body of the monitor mechanism has moved to a position corresponding to the upper limit position and the lower limit position of the shutter curtain, and external operation A shutter operation confirmation method comprising: an external operation unit that outputs at least an operation confirmation command by the control unit; and an opening / closing control unit that controls the clutch and the electric switch based on the operation confirmation command and an output signal of each sensor. And
Determining an open / closed state of the shutter curtain based on an output signal of each sensor when receiving an operation confirmation command from the external operation means;
Based on the determination result of the open / close state, the open check sensor and the upper limit sensor, or the close check sensor and the lower limit sensor are in a non-detection state with respect to the state to be detected, or the electric switch Driving and then returning to the state before driving;
The electric switch is driven to move the movable body to a state where both the lower limit sensor and the lower limit sensor sequentially output detection signals while the clutch is in a non-conductive state, and then before the drive A step for returning to the state;
And a step of generating an operation confirmation signal by determining whether or not the output signal of each sensor has changed in a predetermined manner.

An electric switch that drives the shutter curtain via a clutch, a monitor mechanism that moves the movable body in a range corresponding to the upper and lower limits of the shutter curtain in conjunction with the electric switch, and a lower end portion of the shutter curtain A seat plate confirmation sensor for detecting that a pressing force is applied to the seat plate, an opening confirmation sensor and a closure confirmation sensor for confirming opening and closing of the shutter curtain, respectively, and a movable body of the monitor mechanism is provided for the shutter curtain. An upper limit sensor and a lower limit sensor for detecting movement to a position corresponding to the upper limit position and the lower limit position, external operation means for outputting at least an operation confirmation command by an external operation, the operation confirmation command, and an output signal of each sensor Confirmation of operation of shutter provided with opening / closing control unit for controlling clutch and electric switch based on A law ,,
An open / close discriminating means for discriminating that the shutter curtain is in a closed state based on an output signal of each sensor when receiving an operation confirmation command from the external operation means;
Based on the determination result of the closed state, the closing confirmation sensor and the lower limit sensor are in a non-detection state with respect to the state to be detected, or the electric switch is driven for a predetermined time, and the seat plate Driving the electric switch until the confirmation sensor is in a detection state, and then returning to the state before driving;
The electric switch is driven to move the movable body to a state where both the lower limit sensor and the lower limit sensor sequentially output detection signals while the clutch is in a non-conductive state, and then before the drive A step for returning to the state;
And a step of generating an operation confirmation signal by determining whether or not the output signal of each sensor has changed in a predetermined manner.

An electric switch that drives the shutter curtain via a clutch; a monitor mechanism that moves the movable body in a range corresponding to the upper and lower limits of the shutter curtain in conjunction with the electric switch; and An opening confirmation sensor and a closing confirmation sensor for confirming the closing, an upper limit sensor and a lower limit sensor for detecting that the movable body of the monitor mechanism has moved to a position corresponding to the upper limit position and the lower limit position of the shutter curtain, and external operation A shutter operation check method comprising: external operation means for outputting at least an open / close command by the control device; and an open / close control unit for controlling the clutch and the electric switch based on the open / close command and an output signal of each sensor,
When an open command or a close command is received from the external operation means, the time from when the output signal of either the lower limit sensor or the upper limit sensor changes from the detection state to the non-detection state is counted, and this time is predetermined. A shutter operation check method in which when the output signal of the other one of the lower limit sensor and the upper limit sensor does not enter a detection state even if the value exceeds the value, the shutter curtain is immediately stopped and the operation determination means generates a failure signal.