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JP6529342B2 - Obstacle detection device in electric shutter for building - Google Patents
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JP6529342B2 - Obstacle detection device in electric shutter for building - Google Patents

Obstacle detection device in electric shutter for building Download PDF

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JP6529342B2
JP6529342B2 JP2015110515A JP2015110515A JP6529342B2 JP 6529342 B2 JP6529342 B2 JP 6529342B2 JP 2015110515 A JP2015110515 A JP 2015110515A JP 2015110515 A JP2015110515 A JP 2015110515A JP 6529342 B2 JP6529342 B2 JP 6529342B2
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light
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light emitting
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obstacle detection
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JP2016223160A (en
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充男 神谷
充男 神谷
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Sanwa Shutter Corp
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Sanwa Shutter Corp
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Description

本発明は、ビル等の建築物の出入り口等の開口部を開閉するために取付けられる建築用電動シャッター(オーバースライダーも含む)における障害物検知装置の技術分野に関するものである。   The present invention relates to the technical field of an obstacle detection device in a motorized electric shutter (including an overslider) mounted to open and close an opening such as an entrance and exit of a building such as a building.

今日、ビル等の建築物における出入り口等の開口部を開閉するため、建築用の電動シャッターが設けられることがあるが、該電動シャッターは、巻取りドラムに巻装されたシャッターカーテンが、電動式の開閉機が駆動することに伴う巻取りドラムの正逆回転により、開口部の左右に設けたガイドレールに案内されて昇降し、これにより開口部の開閉ができるようになっている。
このようなものにおいて、シャッターカーテンの閉作動時において、シャッターカーテンの閉軌跡中に障害物があった場合、これを検知してシャッターカーテンの閉作動を停止させ、障害物をシャッターカーテンで挟み込むことがないように構成する必要がある。
このような障害物検知をする手段として、従来、左右のガイドレールに沿って複数段の投受光器を上下方向に間隔を存して配設し、閉作動においてこれら投受光器のうちの少なくとも一組の投受光が遮断された(妨げられた)場合に障害物があると検知して開閉機駆動用制御部に対して障害物検知信号を出力する障害物検知用制御部を設け、これに基づいて障害物検知があった場合にシャッターカーテンの閉作動を停止するようにしたものが知られている(例えば特許文献1、2参照)。
In order to open and close openings such as entrances and exits in buildings such as buildings today, an electric shutter for building may be provided, but the electric shutter is a shutter curtain wound around a winding drum, which is an electric type. The forward and reverse rotation of the winding drum accompanying the drive of the opening and closing machine causes the guide rails provided on the left and right of the opening to move up and down, thereby opening and closing the opening.
In such a thing, when there is an obstacle during the closing path of the shutter curtain at the time of closing the shutter curtain, this is detected to stop the closing operation of the shutter curtain, and the obstacle is pinched by the shutter curtain There is no need to configure it.
As means for detecting such obstacles, conventionally, plural stages of light emitting and receiving devices are arranged at intervals in the vertical direction along the left and right guide rails, and at least one of the light emitting and receiving devices in the closing operation. There is provided an obstacle detection control unit that detects an obstacle when a set of light emission and reception is interrupted (disturbed) and outputs an obstacle detection signal to the switchgear drive control unit. It is known that the closing operation of the shutter curtain is stopped when there is an obstacle detection based on the above (see, for example, Patent Documents 1 and 2).

特許第4519209号公報Patent No. 4519209 gazette 特許第4519210号公報Patent No. 4519210 gazette

ところが前記従来のものは、シャッターカーテンを閉作動していくと、シャッターカーテン最下端の座板スラットが上側の投受光器から下側の投受光器の投受光を順次遮断することになるが、これを障害物検知と判断すると、障害物がないにもかかわらずシャッターカーテンが停止して閉鎖しないことになる。そこでこれを避けるため、閉作動している座板スラットが投受光器の投受光を遮ったと判断した場合、該遮られた投受光器の一段下の投受光器以上の投受光器の投受光を無視するよう制御(ブランキング制御)する一方、前記一段下の投受光器よりも下側の投受光器の投受光の有無に基づいて障害物検知をするようにし、これにより障害物がない場合にはシャッターカーテンが全閉できるように制御している。
このような制御をする場合において、シャッターカーテンを開作動させていくと、最下端の投受光器から順に上側の投受光器の投受光が再開されることになるが、この過程で中途停止した場合に、該中途停止により投受光が停止している投受光器の一つ下段の投受光器以上の投受光は無視する一方、前記一つ下段の投受光器以下の投受光器については無視を解除するようにし、これによりシャッターカーテンの閉作動を停止している中途位置から再開した場合に、障害物検知がない状態での閉作動ができるように制御している。
ところでこのように制御した場合において、シャッターカーテンの全閉時に投受光器にゴミ等の異物が付着する等が原因で投受光が遮断されてしまうことがあり、このような場合、障害物検知用制御部では、投受光が遮断された投受光器以上の投受光器の投受光は無視してシャッターカーテンがここで中途停止したものと判断するが、開閉機駆動用制御部では、シャッターカーテンの開作動においては障害物検知用制御部からの障害物検知信号は無視する設定になっており、この結果、シャッターカーテンは全開することになり、次回以降のシャッターカーテン閉作動においては、前記投受光が遮断された投受光器以上の投受光器の投受光が無視された状態、つまり障害物検知作動が停止された状態での閉作動となって不完全な状態での障害物検知になるという問題があり、ここに本発明の解決すべき課題がある。
However, in the above-mentioned conventional type, when the shutter curtain is closed, the seat plate slat at the lowermost end of the shutter curtain sequentially shuts off the light emission and reception of the lower light emission and reception device from the upper light emission and reception device. If this is judged as obstacle detection, the shutter curtain will stop and not close even though there is no obstacle. Therefore, in order to avoid this, when it is determined that the seat plate slat that is in the closing operation has blocked the light emission and reception of the light emitting and receiving device, the light emitting and receiving devices more than the light emitting and receiving device one step lower Control to ignore (blanking control), while detecting obstacles based on the presence / absence of light emission / reception of the light emission / reception device below the light emission / reception device one level below, whereby there is no obstacle In this case, control is performed so that the shutter curtain can be fully closed.
In the case of performing such control, when the shutter curtain is opened, the light emission / reception of the upper light emission / reception device is resumed from the lowermost end light emission / reception device in order, but it stopped halfway in this process In this case, the light emission and reception of one or more lower light emission and reception devices of the light emission and reception device at which the light emission and reception is stopped due to the halfway stop is ignored, while the light emission and reception devices of the lower one Thus, when the shutter curtain is resumed from an intermediate position where the closing operation of the shutter curtain is stopped, the shutter curtain is controlled so that the closing operation can be performed without detecting an obstacle.
By the way, when controlled in this manner, the light emitting and receiving may be interrupted due to the attachment of foreign matter such as dust to the light emitting and receiving device when the shutter curtain is fully closed. In such a case, for obstacle detection The control unit ignores the light emission and reception of the light emitting and receiving device more than the light emitting and receiving device whose light emitting and receiving is interrupted, and determines that the shutter curtain has stopped halfway here, but the control device for opening and closing the switch In the opening operation, the obstacle detection signal from the obstacle detection control unit is set to be ignored. As a result, the shutter curtain is fully opened. In the next and subsequent shutter curtain closing operations, the light emission and reception are performed. In the condition where the light emission and reception of the light emitting and receiving device more than the light emitting and receiving device where the light emission is blocked is ignored, that is, the closing operation in the state where the obstacle detection operation is stopped There is a problem of detection, there is a problem to be solved by the present invention herein.

本発明は、上記の如き実情に鑑みこれらの課題を解決することを目的として創作されたものであって、請求項1の発明は、建築物の出入り口等の開口部の上部に設けられる巻取りドラムと、該巻取りドラムに巻装されるシャッターカーテンと、巻取りドラムの正逆回転をしてシャッターカーテンの開閉作動をするための電動の開閉機と、該開閉機の正逆駆動の制御をする駆動用制御部と、駆動用制御部に対して開閉停止の各指令を出力する押釦スイッチと、シャッターカーテンの開閉案内をするべく開口部の左右に設けられるガイドレールとを備えて構成される建築用電動シャッターに障害物検知装置を設けるにあたり、該障害物検知装置は、ガイドレールに沿って上下に設けられる複数段の障害物検知用の投受光器と、該投受光器の投受光が遮断されたことに基づいて障害物検知をして障害物検知信号を駆動用制御部に出力する障害物検知用制御部と、シャッターカーテンの下端部に設けられ、上下に隣接する投受光器のうちの少なくとも二組の投受光を遮断する長さを備えた光遮断部と、障害物検知用制御部からの障害物検知信号を受けることで開閉機の停止制御をする開閉機駆動用制御部とを備えて構成されるものであり、前記障害物検知用制御部は、シャッターカーテンの閉作動中においては、最上段の投受光器の投受光が遮断される以前の段階では、次の二段目以下の投受光器の少なくとも一つの投受光が遮断されることで障害物検知信号を出力する第一の場合、この第一の場合において最上段の投受光器の投受光が遮断されたときには光遮断部によるものであるとして二段目以上の投受光器の投受光は無視して次の三段目以下の投受光器の少なくとも一つの投受光が遮断されることで障害物検知信号を出力する第二の場合、この第二の場合を含む第iの場合においてi段目の投受光器の投受光が遮断されたときには光遮断部によるものであるとしてi+1段目以上の投受光器の投受光は無視して次のi+2段目以下の投受光器の少なくとも一つの投受光が遮断されることで障害物検知信号を出力する第i+1の場合になることを、順次最下段投受光器に至るまで繰り下がるようにして障害物検知制御を実行し、シャッターカーテンの開作動では、最下段の投受光器から順次上側の投受光器の投受光が再開することで該再開された投受光よりも一つ下段の投受光の無視が解除される制御が実行されるが、該開作動の過程において投受光が遮断されたままの投受光器が存在した場合に、該投受光が遮断されたままの投受光器の存在が停止指令の出力によるものである場合には、該遮断された投受光器位置でシャッターカーテンが停止したものと判断して、次回のシャッターカーテン閉作動では、前記遮断されたままの投受光器より一つ下段の投受光器以上の投受光は無視し、一つ下段の投受光器よりも下の投受光器による障害物検知制御を実行し、前記遮断されたままの投受光器の存在が停止指令の出力によるものでない場合には、継続する開作動で、最上段投受光器の投受光が遮断状態から投受光状態に変化したと判断された場合、投受光器の投受光の無視を全て解除して次回のシャッターカーテンの閉作動の障害物検知制御を実行することを特徴とする建築用電動シャッターにおける障害物検知装置である。
請求項2の発明は、最上段投受光器のなか又はその近傍に外光検知センサが設けられ、障害物検知用制御部には、シャッターカーテンの作動で、最上段投受光器を除いた少なくとも一つの投受光器の投受光が遮断され、かつ最上段投受光器の投受光が遮断されたままの状態のとき、外光検知センサの外光検知がなかった場合に、無視していた全ての投受光器の障害物検知制御を再開させる第二の障害物制御再開手段が設けられていることを特徴とする請求項1記載の建築用電動シャッターにおける障害物検知装置である。
請求項3の発明は、外光検知センサの外光検知がなかった場合の無視していた全ての投受光器の障害物検知制御再開は、外光検知がない状態が予め設定される時間維持されたときに実行されることを特徴とする請求項2記載の建築用電動シャッターにおける障害物検知装置である。
The present invention has been made for the purpose of solving these problems in view of the above situation, and the invention of claim 1 is a winding provided at an upper portion of an opening such as an entrance and exit of a building. A drum, a shutter curtain wound around the winding drum, an electric opening / closing machine for opening / closing the shutter curtain by rotating the winding drum forward / reverse, and control of forward / reverse drive of the opening / closing machine The drive control unit, the push button switch for outputting the open / close stop command to the drive control unit, and the guide rails provided on the left and right of the opening for guiding the opening / closing of the shutter curtain In providing the obstacle detection device to the electric shutter for building, the obstacle detection device comprises a plurality of stages of light emitting and receiving devices for detecting obstacles provided vertically along the guide rail, and the light emitting and receiving of the light emitting and receiving device An obstacle detection control unit that detects an obstacle based on the interruption and outputs an obstacle detection signal to a drive control unit, and a projector curtain that is provided at the lower end of the shutter curtain and is vertically adjacent A light blocker having a length for blocking at least two sets of light emission and reception among them, and an open / close machine drive control unit that performs stop control of the open / close machine by receiving an obstacle detection signal from an obstacle detection control unit The obstacle detection control unit is configured to perform the following two steps before the light emission and reception of the uppermost light emitting and receiving device is cut off during the closing operation of the shutter curtain: In the first case where the obstacle detection signal is output by blocking the light emission and reception of at least one of the light emission and reception devices below the stage, the light emission and reception of the uppermost light emission and reception device is blocked in this first case Sometimes it is due to the light blocker In the second case where the obstacle detection signal is output by ignoring the light emission and reception of the light emission and reception of the stages and higher and blocking the light emission and reception of at least one of the light emission and reception of the next third and lower stages. In the i-th case including the second case, when the light emission / reception of the i th stage light emission / reception device is interrupted, it is considered that the light blocking portion is considered and the light emission / reception of the i + 1 th stage or more is ignored In the case of the (i + 1) th case of outputting an obstacle detection signal by blocking light emission and reception of at least one light emission and reception device of the i + 2th stage or less, sequentially advancing to the lowermost light emission and reception device Execute obstacle detection control, and in the opening operation of the shutter curtain, the light emission and reception of the upper light emission and reception device is resumed sequentially from the lowermost light emission and reception device, and the light emission and reception of one lower stage than the restarted light emission and reception. Control is executed to release the ignorance of the If the emitter and receiver is present as-projection and reception is interrupted in the course, when the presence of the emitters and receivers remain-projecting light is blocked is due to the output of the stop command is the cut-off were it is determined that the shutter curtain is stopped emitter and receiver positions, the next shutter curtain closing operation, emitter and receiver or more light emitting and receiving one lower than emitters and receivers remain the blocking ignores, The obstacle detection control is performed by the lower light emitting and receiving device than the one lower light emitting and receiving device, and when the presence of the light emitting and receiving device as it is blocked is not due to the output of the stop command, the open is continued. operation, if it is determined that the light emission and reception of the uppermost emitter and receiver is changed from the cutoff state to the light emission and reception conditions, emitters and receivers emitting and receiving obstacle closing operation of the next shutter curtain to release all ignored and characterized by performing the detection control It is an obstacle detection device in the building electric shutter that.
According to the second aspect of the present invention, the ambient light detection sensor is provided in the vicinity of or in the uppermost light emitting and receiving device, and the obstacle detecting control unit excludes the uppermost light emitting and receiving device in the opening operation of the shutter curtain. When at least one light emitting and receiving device is blocked, and when the top light emitting and receiving device is blocked, the external light detection sensor ignores when there is no ambient light detection. 2. An obstacle detection device for an architectural electric shutter according to claim 1, further comprising second obstacle control resuming means for resuming obstacle detection control of all light emitters / receivers.
According to the third aspect of the present invention, the obstacle detection control of all the light emitting and receiving devices that has been ignored in the case where the outside light detection of the outside light detection sensor is not performed resumes the time in which the state without outside light detection is preset. The obstacle detection device according to claim 2, wherein the obstacle detection device is implemented when maintained.

請求項1の発明とすることにより、シャッターカーテンが開作動している過程で、途中の投受光器の投受光が遮断された場合において、さらに最上段の投受光器の投受光が遮断状態から投受光状態に変化することがあった場合、シャッターカーテンが途中位置での停止ではなく最上段投受光器を越えて上昇しているものと判断し、これにより無視していた投受光器の投受光制御を再開させることで、次回の閉作動において遮断されている投受光器の検知に基づき開閉機は停止状態となり、この停止が障害物の存在によらない場合には、投受光器が異物付着等による不具合であることが判明し、対応したメンテナンスを促すことになって建築用電動シャッターの確実な保守ができることになる。
請求項2の発明とすることにより、シャッターカーテンが開作動している過程で、途中の投受光器の投受光が遮断された場合において、さらに最上段の投受光器の投受光が遮断状態のままである場合、最上段投受光器に異物付着等の不具合があるか否かの判断が、外光検知センサの外光検知の有無に基づいてできることになり、この結果、対応したメンテナンスを促すことになって建築用電動シャッターのさらなる確実な保守ができることになる。
請求項3の発明とすることにより、昼夜に亘っての最上段投受光器の異常検知が実行できることになる。
According to the invention of claim 1, in the process of opening the shutter curtain, when the light emission and reception of the light emission and reception device in the middle is blocked, the light emission and reception of the uppermost light emission and reception device is blocked If there is a change to the light emitting and receiving state, it is judged that the shutter curtain has risen beyond the uppermost light emitting and receiving unit rather than being stopped at the middle position, and the light emitting and receiving unit's By restarting the light reception control, the switchgear is stopped based on the detection of the light emitter / receiver that is shut off in the next closing operation, and when the stop is not due to the presence of an obstacle, the light emitter / receiver is a foreign object It becomes clear that the problem is caused by adhesion and the like, and the corresponding maintenance is promoted, so that the architectural electric shutter can be reliably maintained.
According to the second aspect of the present invention, when light emission / reception of the light emission / reception device on the way is interrupted in the process of opening the shutter curtain, the light emission / reception of the uppermost light emission / reception device is blocked If the condition is left, it can be determined whether the uppermost light emitting and receiving device has a defect such as foreign matter adhesion based on the presence / absence of outside light detection of the outside light detection sensor, and as a result, prompting the corresponding maintenance As a result, further reliable maintenance of the architectural electric shutter can be performed.
According to the third aspect of the present invention, abnormality detection of the uppermost light emitting and receiving unit can be performed over the day and night.

建築用シャッター装置の正面図である。It is a front view of a shutter device for buildings. 建築用シャッター装置の断面側面図である。It is a cross-sectional side view of a shutter device for buildings. 建築用シャッター装置の要部斜視図である。It is a principal part perspective view of a shutter device for buildings. 障害物検知装置のブロック回路図である。It is a block circuit diagram of an obstacle detection device. 最上段投(受)光器の概略図である。It is the schematic of a top step throwing (receiving) light device. 駆動用制御部のフローチャート図である。FIG. 6 is a flowchart of a drive control unit. 障害物検知用制御部の閉作動制御のフローチャート図である。It is a flowchart figure of closing operation control of a control part for obstacle detection. 障害物検知用制御部の開作動制御のフローチャート図である。It is a flowchart figure of opening operation control of a control part for obstacle detection.

以下、本発明の実施の形態について、図面に基づいて説明する。図面において、1は建築用電動シャッター(装置)であって、該シャッター1は、出入口等の開口部の天井側(天井裏)に設けられる左右ブラケット2、該左右ブラケット2に回転自在に設けられる巻取りドラム3、該巻取りドラム3に巻装されるシャッターカーテン4、巻取りドラム3を正逆回転させてシャッターカーテン4の開閉駆動をする開閉機5、開閉作動をするシャッターカーテン4の開閉ガイドをするべく開口部の左右に設けられるガイドレール6等の各種の部材装置を用いて構成されていること等は何れも従来通りである。   Hereinafter, embodiments of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes an architectural electric shutter (apparatus), and the shutter 1 is provided rotatably on the left and right brackets 2 provided on the ceiling side (ceiling back) of the opening such as the entrance and the like. Winding drum 3, shutter curtain 4 wound around winding drum 3, opening and closing machine 5 for opening and closing shutter curtain 4 by rotating winding drum 3 forward and reverse, opening and closing shutter curtain 4 As in the prior art, it is constructed using various member devices such as guide rails 6 provided on the left and right of the opening for guiding.

7は障害物検知装置を構成する投光側基材、8は同じく受光側基材であって、投受光側基材7、8は上下方向に長い柱形状をし、上下方向に適間隔(例えば5cm間隔)を存して対をなす状態で複数段の投光器(投光センサ)9、受光器(受光センサ)10が埋設されている。ここで投受光される光としては赤外線、遠赤外線が例示されるが、これに限定されないものであることはいうまでもない。そして投受光側基材7、8は、本実施の形態では左右ガイドレール6の屋内側面に両面粘着テープや接着剤等の取付け部材により取付けられるが、取付け手法として、基材7、8を左右ガイドレール6の両屋内側面あるいは両屋外側面に取付けたり、一方の基材7を一方のガイドレール6の屋外側面に、他方の基材8を他方のガイドレール6の屋内側面に取付けるようにしても実施することができるが雨水等の付着による汚れを予防するため、屋内側面に取付けることが好適である。   Reference numeral 7 denotes a light emitting side base material constituting the obstacle detection device, and 8 denotes a light receiving side base material, and the light emitting and receiving side base materials 7 and 8 have a long columnar shape in the vertical direction and an appropriate interval in the vertical direction For example, multiple stages of light projectors (light projection sensors) 9 and light receivers (light receiving sensors) 10 are embedded in pairs in a 5 cm interval. Although infrared light and far infrared light are exemplified as light to be emitted and received here, it is needless to say that the light is not limited to this. In the present embodiment, the light emitting and receiving side substrates 7 and 8 are attached to the indoor side surfaces of the left and right guide rails 6 by an attaching member such as a double-sided adhesive tape or an adhesive. Attach the base material 7 to the outdoor side of one guide rail 6 and the other base 8 to the indoor side of the other guide rail 6 However, in order to prevent contamination due to adhesion such as rain water, it is preferable to attach it to the indoor side.

受光側基材8には障害物検知用の制御部11が内装されるが、該障害物検知用制御部11は、前記各投受光器9、10の投受光素子9a、10aに電気的に接続されると共に、開閉機5を駆動制御するための駆動用制御部12にも電気的に接続されている。   A control unit 11 for detecting an obstacle is installed in the light-receiving side substrate 8, and the control unit 11 for detecting an obstacle electrically connects the light emitting and receiving elements 9 a and 10 a of the light emitting and receiving devices 9 and 10. While being connected, it is also electrically connected to the drive control unit 12 for controlling the operation of the switchgear 5.

駆動用制御部12の開閉制御ルーチンの代表的なフローチャート図を示すが、まず押釦スイッチ5aから開閉停止指令(開閉指令は、全開、全閉、停止指令があるまで自己保持される。)の何れかがあったか否かの判断(S−1)がなされ、これが閉指令であった場合、開閉機5に対して閉作動指令が出力されて開閉機5は閉作動をする(S−2)。次いで全閉になったか否かの判断がなされ(S−3)、全閉になったと判断(YES)された場合、開閉機5は停止する(S−4)。全閉でない(NO)と判断された場合、障害物検知用制御部11から障害物検知信号の入力があったか否かの判断(S−5)がなされ、入力があった(YES)と判断された場合には開閉機5の停止(S−6)をし、この場合には再び障害物検知信号の入力があったか否かの判断(S−5)にリターンする。一方、障害物検知信号の入力がなかった(NO)と判断された場合には、開閉停止指令があったか否かの判断(S−1)にリターンする。
一方、開閉停止指令があったか否かの判断(S−1)において開指令があったと判断された場合には、開閉機5が開駆動(S−7)し、全開であると判断された(S−8)場合、開閉機5は停止(S−9)する。全開でないと判断された場合、開閉停止指令があったか否かの判断(S−1)にリターンする。
また、開閉停止指令があったか否かの判断(S−1)において停止指令があった場合、開閉機5は停止する(S−10)。
A representative flow chart of the open / close control routine of the drive control unit 12 is shown. First, any of the open / close stop commands from the push button switch 5a (open / close commands are self-held until fully open, fully closed, or stop command). It is judged (S-1) whether or not there is a hook, and if this is a closing command, a closing operation command is outputted to the switching device 5, and the switching device 5 is closed (S-2). Subsequently, it is judged whether or not the full closing has been made (S-3), and if it is determined that the full closing has been made (YES), the opening / closing machine 5 is stopped (S-4). If it is determined not to be fully closed (NO), it is determined whether or not there is an obstacle detection signal input from the obstacle detection control unit 11 (S-5), and it is determined that there is an input (YES) In this case, the switchgear 5 is stopped (S-6), and in this case, the process returns to the determination (S-5) as to whether or not there is an obstacle detection signal input again. On the other hand, if it is determined that there is no obstacle detection signal input (NO), the process returns to the determination (S-1) whether or not there is an open / close stop command.
On the other hand, when it is determined in the determination (S-1) whether or not there is an open / close stop command, the open / close machine 5 is driven open (S-7) and it is determined that it is fully open In the case of S-8), the opening and closing machine 5 is stopped (S-9). If it is determined that the vehicle is not fully open, the process returns to the determination (S-1) whether or not there is an open / close stop command.
If it is determined in the determination (S-1) whether or not there is an opening / closing stop instruction, the opening / closing machine 5 is stopped (S-10).

一方、シャッターカーテン4の左右下端部には、最下端の座板スラット4aを含める状態で投受光器9、10により投受光される光線を遮断(塞ぐ)するための光遮断体13aが設けられているが、該光遮断体13aと座板スラット4aにより本発明の光遮断部13を構成しているが、光遮断部13は、上下に隣接する二組の投受光器9、10の投受光を遮断する長さ(寸法)に設定されている。   On the other hand, light shutters 13a are provided at the left and right lower end portions of the shutter curtain 4 in order to block (block) light beams emitted and received by the light emitting and receiving devices 9 and 10 in a state including the lowest end seat plate slat 4a. However, although the light blocking portion 13 of the present invention is constituted by the light blocking member 13a and the seat plate slat 4a, the light blocking portion 13 is provided with two sets of light emitting and receiving units 9 and 10 adjacent to each other vertically. It is set to the length (dimension) which intercepts light reception.

そして、組となる投受光器9、10同士の投受光は次のようにして実行されている。今、投受光器9、10の数がそれぞれn個であった場合に、説明しやすいように最上の投受光器から「9−1、10−1」、「9−2、10−2」、・・・、「9−n、10−n」と順次符号付けをする。尚、最上段投受光器9−1、10−1と全開した状態の座板スラット4aとのあいだには投受光器がない空間がある。
因みに、障害物検知用制御部11は、最上段の投受光器9−1、10−1から順次下側の投受光器9、10の投受光が遮断されていくことでシャッターカーテン4が閉作動をし、逆に最下段の投受光器9−n、10−nから順次上側の投受光が再開することで開作動をしていることを判断できるようになっている。
And the light emission and reception of the light emission and reception devices 9 and 10 which become a group are performed as follows. Now, when the number of light emitting and receiving devices 9 and 10 is n, for ease of explanation, "9-1, 10-1", "9-2, 10-2" ... “9-n, 10-n” sequentially. There is a space where there are no light emitting and receiving devices between the uppermost stage light emitting and receiving devices 9-1 and 10-1 and the seat plate slat 4a in a fully open state.
Incidentally, the control unit 11 for obstacle detection closes the shutter curtain 4 by sequentially blocking the light emission and reception of the lower light emission and reception devices 9 and 10 from the uppermost light emission and reception devices 9-1 and 10-1. It is possible to judge that the open operation is being performed by resuming the upper light emission and reception from the lowermost light emission and reception devices 9-n and 10-n in sequence.

障害物検知用制御部11は、電源投入されると、最上段の投光器9−1、次いで二段目の投光器9−2、さらに次の三段目の投光器9−3と順次下側の投光器9に投光指令を出力し、最下段の投光器9−nに投孔指令を出力したら、再び最上段の投光器9−1に投光指令を出力し、以降これを繰り返すことになる。一方、受光器10側では受光(信号受信)がなされたか否かの判断をし、受光がなされた場合には、障害物検知用制御部11に受光信号を出力し、受光がなかった場合には受光信号の出力がないように制御される。
障害物検知用制御部11は、上からi番目の投光器9−iに投光指令を出力した場合に、上からi番目の受光器10−iからの受光信号があったか否かの判断をし、あった場合には障害物はないと判断して駆動用制御部12への信号出力はないが、受光信号がなかった場合にはi番目の投受光器の投受光が障害物により遮断されたと判断して駆動用制御部12に対して障害物検知信号を出力するようになっている。因みに、この投受光の繰り返し制御は毎秒数回から数十回の速度で行うことになる。
When power is supplied to the obstacle detection control unit 11, the projector 9-1 at the top, the projector 9-2 at the second stage, the projector 9-3 at the next stage, and the projector 9-3 on the lower side. When the light projection command is output to 9 and the light projection command is output to the lowermost light projector 9-n, the light projection command is again output to the uppermost light projector 9-1, and this is repeated thereafter. On the other hand, on the light receiver 10 side, it is judged whether light reception (signal reception) is made or not, and if light reception is made, a light reception signal is outputted to the obstacle detection control section 11 and there is no light reception. Is controlled such that there is no light reception signal output.
When the obstacle detection control unit 11 outputs a light projection command to the ith projector 9-i from above, it determines whether or not there is a light reception signal from the ith light receiver 10-i from above. If there is no obstacle, there is no signal output to the drive control unit 12, but if there is no light reception signal, the light emission and reception of the ith light emitter and receiver is blocked by the obstacle And outputs an obstacle detection signal to the drive control unit 12. Incidentally, the repetition control of the light emission and reception is performed at a speed of several times to several tens of times per second.

そして障害物検知用制御部11は、このような投受光の繰り返し制御を継続して実行することになるが、シャッターカーテン4の閉作動の過程において、光遮断部13が最上段の投受光器9−1、10−1の投受光を遮断するまでのあいだ(S−11)は、次の二段目以降の投受光器9−2、10−2〜9−n、10−nの投受光の少なくとも一つが遮断されたか否かを判断(S−12)し、遮断されたと判断した第一の場合、障害物検知用制御部11は、シャッターカーテン4の閉軌跡に障害物があると判断して障害物検知信号を駆動用制御部12に出力(S−13)し、これを受けた駆動用制御部12は開閉機5を停止させて障害物回避作動をするよう制御し、必要において非常報知手段(例えば非常灯や非常ブザー)14で非常報知をするか、管理室に非常通報をするように設定される。そして障害物が退去(または除去)されて遮断された投受光が復帰すると、駆動用制御部12への障害物信号の出力が停止され、シャッターカーテン4の閉作動が再開されるよう制御される。一方、二段目以降の投受光器9−2、10−2〜9−n、10−nの投受光の何れも遮断されない場合には障害物がないものと判断されて障害物検知信号の出力はなく、シャッターカーテン4の閉作動は継続される。   The obstacle detection control unit 11 continuously executes such repetition control of light emission and reception. However, in the process of closing the shutter curtain 4, the light blocking unit 13 is the uppermost light emitting and receiving device. Until the light emission and reception of 9-1 and 10-1 are cut off (S-11), the light emission and reception devices 9-2, 10-2 to 9-n and 10-n of the second and subsequent stages are It is judged whether or not at least one of the received light is blocked (S-12), and in the first case it is determined that the shutter is blocked, the obstacle detection control unit 11 determines that there is an obstacle in the closed trajectory of the shutter curtain 4 Judged and output an obstacle detection signal to the drive control unit 12 (S-13), and the drive control unit 12 that received this controls the opening / closing machine 5 to stop and perform obstacle avoidance operation, which is necessary. Emergency notification means (eg emergency lights and emergency buzzers) Luke, is set to the emergency report to the control room. Then, when the obstacle is removed (or removed) and the blocked light emission and reception is restored, the output of the obstacle signal to the drive control unit 12 is stopped, and control is performed so that the closing operation of the shutter curtain 4 is resumed. . On the other hand, if none of the light emitting and receiving devices 9-2, 10-2 to 9-n, and 10-n in the second and subsequent stages is blocked, it is judged that there is no obstacle, and the obstacle detection signal There is no output, and the closing operation of the shutter curtain 4 is continued.

そしてシャッターカーテン4が閉作動が継続されて光遮断部13が最上段の投受光器9−1、10−1に達してこれらのあいだの投受光を遮る(S−11)と、障害物検知用制御部11は座板スラット4aが最上段の投受光器9−1、10−1に達したと判断し、この判断がなされると、次の二段目以上の投受光器9−1、2、10−1、2の投受光は無視(ブランキング)して(S−14)、次の三段目の投受光器以下の投受光器9−3〜n、10−3〜nの少なくとも一つの投受光が遮断されたか否かの判断がなされ(S−15)、遮断されたと判断された第二の場合には障害物がある判断して障害物検知用制御部11から障害物検知信号を駆動用制御部12に出力(S−16)して開閉機5の停止制御をするが、遮られない場合には障害物がないとしてシャッターカーテン4の閉作動が続行される。
次に、二段目の投受光器9−2、10−2の投受光が遮られた場合(S−15)、座板スラット4aが順調に下降して遮ったものと判断し、次の三段目の投受光器以上の投受光器9−1〜3、10−1〜3の投受光を無視し(S−17)、次の四段目以下の投受光器9−4〜n、10−4〜nの少なくとも一つの投受光が遮断されたか否かの判断がなされ(S−18)、遮断されたと判断された第三の場合には障害物がある判断して障害物検知用制御部11から障害物検知信号を駆動用制御部12に出力(S−19)して開閉機5の停止制御をするが、遮られない場合には障害物がないとしてシャッターカーテン4の閉作動が続行される。
そしてこのようにして障害物検知が判断される投受光器9、10は順次下側の投受光器9、10に移行し、i段目以下の投受光器9−i〜n、10−i〜nの投受光のうちの少なくとも一つが遮断されたか否かの障害物検知判断がなされる場合(S−21)、i−1段目以上の投受光器9−1〜(i−1)、10−1〜(i−1)の投受光は無視(S−20)され、この場合において、i段目以下の投受光器9−i〜n、10−i〜nの投受光が遮断されたと判断されるi−1番目の場合(S−22)には障害物がある判断して障害物検知用制御部11から障害物検知信号を駆動用制御部12に出力(S−23)して開閉機5の停止制御をするが、遮られない場合には障害物がないとしてシャッターカーテン4の閉作動が続行され、このような判断が、n段目の投受光器9−n、10−nの投受光が無視される(S−24)まで順次繰り下がる状態で繰り返しなされ、そしてシャッターカーテン4は全閉して停止する。因みにシャッターカーテン4の全閉停止は、別途設けた全閉検知センサの全閉検知で実行されることは従来周知であるので、詳細は省略する。
When the shutter curtain 4 continues to close and the light blocking portion 13 reaches the uppermost light emitting and receiving devices 9-1 and 10-1, the light emitting and receiving between them is interrupted (S-11), obstacle detection The controller 11 determines that the seat plate slat 4a has reached the uppermost light emitting and receiving devices 9-1 and 10-1, and if this determination is made, the second or higher light emitting and receiving device 9-1 is determined. , 2, 10-1 and 2 are ignored (blanked) (S-14), and the light-receiving devices 9-3 to n and 10-3 to n below the third light-emitting and receiving device of the next stage It is judged whether or not at least one of the light emission and reception is blocked (S-15), and in the second case where it is judged that the light is blocked, it is judged that there is an obstacle and the obstacle detection control unit 11 An object detection signal is output to the drive control unit 12 (S-16) and stop control of the open / close machine 5 is performed. Closing operation of the shutter curtain 4 is continued as no object.
Next, when the light emission and reception of the second-stage light emission and reception devices 9-2 and 10-2 is blocked (S-15), it is determined that the seat plate slat 4a is smoothly lowered and blocked, and the next Disregard the light emission and reception of the light emitting and receiving devices 9-1 to 3 and 10-1 to 3 of the third step more than the light emitting and receiving device (S-17), and the light emitting and receiving devices 9-4 to n following the fourth step or less 10-4 to n, it is judged whether or not at least one of the light emission and reception is interrupted (S-18), and in the third case where it is judged to be interrupted, it is judged that there is an obstacle and obstacle detection An obstacle detection signal is output from the control unit 11 to the drive control unit 12 (S-19) and stop control of the opening / closing machine 5 is performed. However, if not blocked, the shutter curtain 4 is closed as there is no obstacle. Operation is continued.
The light emitting and receiving devices 9, 10 whose obstacle detection is determined in this way sequentially shift to the lower light emitting and receiving devices 9, 10, and the light emitting and receiving devices 9-i to n, 10-i in the i-th stage and below are transmitted. When it is determined whether or not at least one of the light emission and reception of 〜 n is blocked (S-21), the light emitting and receiving devices 9-1 to (i-1) of the i-1 th stage or higher , 10-1 to (i-1) are ignored (S-20), and in this case, the light emitting and receiving devices 9-i to 9-i and 10-i to n and 10-i to n are interrupted. In the (i) -th case (S-22), it is determined that there is an obstacle, and the obstacle detection control unit 11 outputs an obstacle detection signal to the drive control unit 12 (S-23) Stop control of the opening / closing machine 5, but if there is no obstruction, there is no obstruction and the closing operation of the shutter curtain 4 is continued, Determination, the light emitting and receiving the emitter and receiver 9-n, 10-n of the n-th stage is ignored (S-24) made repeated sequentially repeated drops until, and the shutter curtain 4 is stopped fully closed. Incidentally, since it is well known that the fully closed stop of the shutter curtain 4 is executed by the fully closed detection of the separately provided fully closed detection sensor, the details will be omitted.

一方、シャッターカーテン4が開作動する場合に、障害物検知用制御部11は、投受光器9、10の投受光の有無は無視する障害物検知制御停止状態となる。そして、座板スラット4aが通り過ぎることで最下端の投受光器9−n、10−nから順次上側の投受光が再開(回復、復帰)していき(S−25)、その上段の投受光器9−(n−1)、10−(n−1)の投受光が再開する(S−26)と、最下段の投受光器9−n、10−nの投受光の無視が解除されることになり(S−27)、これが順次繰り上がる状態となるが、障害物検知用制御部11は、シャッターカーテン4の開作動中、押釦スイッチ5aから停止指令があってi段目の投受光器9−i、10−iの投受光が再開しなかった場合、この投受光器9−i、10−iの投受光を遮断する位置でシャッターカーテン4が停止したもの、つまり中途開の状態で停止したものと判断し、この投受光器9−i、10−iよりも一段下の投受光器9−1〜(i+1)、10−1〜(i+1)の投受光以上の投受光器9、10による投受光は無視したままとして、該一段下の投受光器9−1〜(i+1)、10−1〜(i+1)よりも下の前記無視が解除された投受光器9、10による投受光によって中途開で停止した場合において、シャッターカーテン4の開閉作動が有った場合に対応できるようになっている。 On the other hand, when the shutter curtain 4 is opened, the obstacle detection control unit 11 is in the obstacle detection control stop state where the presence or absence of the light emission and reception of the light emission and reception devices 9 and 10 is ignored. Then, when the seat plate slat 4a passes by, the light emission and reception on the upper side is sequentially resumed (recovered and restored) from the light emitting and receiving devices 9-n and 10-n at the lowermost end (S-25). When the light emission and reception of the light source 9- (n-1) and 10- (n-1) resume (S-26), the neglect of the light emission and reception of the lowermost light emitting and receiving device 9-n, 10-n is cancelled. (S-27), but it will be in the state of moving up one by one, but the control unit 11 for obstacle detection receives a stop command from the push button switch 5a during the opening operation of the shutter curtain 4 and throws the i-th stage. If the light emitting and receiving of the light receiving devices 9-i and 10-i is not resumed, the shutter curtain 4 is stopped at a position where the light emitting and receiving of the light emitting and receiving devices 9-i and 10-i is blocked, that is, half open it is determined that the stopped state, projecting under one step than the emitter and receiver 9-i, 10-i Light unit 9-1 (i + 1), 10-1 to (i + 1) as a still is emitting and receiving by the light emitting and receiving more emitters and receivers 9, 10 and ignored, emitter and receiver 9-1 to one level lower the (i + 1 When the shutter curtain 4 is opened and closed in the case where it is stopped halfway by the light emitting and receiving by the light emitting and receiving device 9 and 10 whose ignorance is released below 10-1 to (i + 1), it corresponds It can be done.

ところで障害物検知用制御部11は、このようなシャッターカーテン4の開作動時において、i段目の投受光器9−i、10−iの投受光が遮断されたままとなった場合に、これが駆動用制御部12に対して通常指令の一つである停止指令が出力されたことによるものであれば、シャッターカーテン4はこの位置で停止したことになるが、投受光器9−i、10−iの投受光の遮断が前記停止指令によるものではなく異常が原因である場合には、駆動用制御部12は開閉機5の開駆動を継続することになり、この結果、シャッターカーテン4は全開するが、i+1段目以上の投受光器9−1〜(i+1)、10−1〜(i+1)の投受光は無視された状態のままに維持され、次回、シャッターカーテン4を閉作動した場合に、i+1段目以上の投受光器9−1〜(i+1)、10−1〜(i+1)の投受光は無視された状態での閉作動がなされることになり、これを避けるため、障害物検知用制御部11では次に説明する第一の障害物制御再開手段制御が実行される。 By the way, when the shutter curtain 4 is opened as described above, the obstacle detection control unit 11 continues to block the light emission and reception of the i-th light emitting and receiving devices 9-i and 10-i. If this is because the stop command, which is one of the normal commands, is output to the drive control unit 12, the shutter curtain 4 has stopped at this position, but the light emitting and receiving device 9-i, When the interruption of light emission and reception of 10-i is not due to the stop command but is due to an abnormality, the drive control unit 12 continues the open drive of the opening / closing machine 5, and as a result, the shutter curtain 4 Fully open, but the light emitting and receiving devices 9-1 to (i + 1) and 10-1 to (i + 1) of the i + 1th and higher stages are kept neglected, and the shutter curtain 4 is closed next time If i + 1 stage or higher In the state in which the light emission and reception of the light emitting and receiving devices 9-1 to (i + 1) and 10-1 to (i + 1) are ignored, the closing operation is performed, and in order to avoid this, the obstacle detection control unit 11 The first obstacle control restart means control described below is executed.

障害物検知用制御部11は、第一の障害物制御再開手段制御として、シャッターカーテン4の作動中において、前述したように停止指令がないにもかかわらず前記i段目の投受光器9−i、10−iの投受光が遮断されたままの状態で最上段投受光器9−1、10−1の投受光が遮断状態から投受光された(再開された)状態に変化したと判断(S−29)された場合、無視していたi+1段目以上の全ての投受光器9−1〜(i+1)、10−1〜(i+1)の投受光の有無の判断を再開させる(S−30)制御を実行する。
因みに、最上段投受光器9−1、10−1の投受光が遮断状態から投受光された(再開された)状態に変化したとの判断は、本実施の形態では、投受光器9、10がシャッター芯に対して同じ側にあるから、光遮断部13が最上段投受光器9−1、10−1を通過する際に、最上段投受光器9−1、10−1の投受光の遮断が一旦あり、この遮断があった後に投受光の状態に変化したことがあったことによるものであるが、これに限定されるものではなく、例えば投受光器9、10の光軸がシャッター芯を交差するものである場合、最上段投受光器9−1、10−1の投受光への変化は、座板スラット4aが最上段投受光器9−1、10−1を超えて上昇することで漸くなされるものであるから、このように制御しても勿論よい。
As the first obstacle control resuming means control, the obstacle detection control unit 11 emits the light emitting and receiving unit 9 of the i-th stage despite the absence of the stop command as described above during the opening operation of the shutter curtain 4. -When the light emission and reception of the uppermost light emitting and receiving unit 9-1 and 10-1 changes from the blocking state to the light emission and reception (restarted) state in the state that the light emission and reception of 10-i is blocked. If it is judged (S-29), the judgment of the presence or absence of light emission and reception of all the light emitting and receiving devices 9-1 to (i + 1) and 10-1 to (i + 1) which have been ignored i to 1 th stage or more is resumed S-30) Execute control.
Incidentally, in the present embodiment, the judgment that the light emission and reception of the uppermost light emission and reception devices 9-1 and 10-1 has changed from the blocking state to the light emission and reception (restarted) state is the light emission and reception device 9, Since 10 is on the same side with respect to the shutter core, when the light blocking portion 13 passes through the uppermost light emitting and receiving devices 9-1 and 10-1, the light emission of the uppermost light emitting and receiving devices 9-1 and 10-1 is performed. This is due to the fact that there is a blockage of light reception once and there has been a change to the state of light emission and reception after this blockage, but this is not a limitation, for example, the optical axes of the light emitters 9 and 10 In the case where the shutter core is crossed, the change in the top-level light receiving and receiving device 9-1 and 10-1 to the light emitting and receiving is such that the seat plate slat 4a exceeds the top light emitting and receiving device 9-1 and 10-1. Of course, this control may be made as it is performed by rising.

そしてこれにより次回シャッターカーテン4の閉作動をさせると、前記i段目の投受光器9−i、10−iの投受光が遮断されていると判断され、これにより障害物検知信号が障害物検知用制御部11から駆動用制御部12に出力されることになって障害物検知状態が認識され、シャッターカーテン4の閉作動が停止されることになり、管理者は、シャッターカーテン4の閉軌跡に障害物がない場合、最上段投受光器9−1、10−1以外の投受光器9、10に異物が付着する(あるいは故障)等して投受光が遮断されているものと判断し、清掃作業をする等して遮断された投受光を復帰させることで障害物検知制御がなされた状態でのシャッターカーテン4の閉作動を行うことができ、これでも閉作動を行わない場合には投受光器が故障したものとして投受光器9、10を交換する等のメンテナンスすることになる。
この場合に、障害物検知をした場合と同様、ブザーの吹鳴、ハザードランプの点灯をする等して報知するようにしてもよい。
Then, when the closing operation of the shutter curtain 4 is performed next time, it is determined that the light emission and reception of the i-th stage light emitting and receiving devices 9-i and 10-i is blocked, whereby the obstacle detection signal is an obstacle. The detection control unit 11 outputs it to the drive control unit 12 so that the obstacle detection state is recognized, and the closing operation of the shutter curtain 4 is stopped, and the administrator closes the shutter curtain 4. If there is no obstacle on the trajectory, it is judged that the light emitting and receiving is interrupted due to the foreign matter adhering (or failure) to the light emitting and receiving devices 9 and 10 other than the top light emitting and receiving devices 9-1 and 10-1. It is possible to perform the closing operation of the shutter curtain 4 in a state in which the obstacle detection control is performed by returning the blocked light emission and reception by performing a cleaning operation, etc., even if the closing operation is not performed. Failure of the emitter and receiver Will maintenance such replacing the emitter and receiver 9 and 10 as a thing.
In this case, as in the case where an obstacle is detected, notification may be made by, for example, a buzzer sounding or lighting a hazard lamp.

一方、最上段投受光器9−1、10−1の投受光が異物付着(故障)等の理由により遮断されている場合、前記i段目の投受光器9−i、10−iの投受光が遮断されたままである場合、前記第一の障害物制御再開手段制御は実行されない。そこで障害物検知用制御部11では第二の障害物制御再開手段制御を実行するようになっている。
このものでは、最上段投受光器9−1、10−1内またはその近傍に外光検知(照度)センサの素子15を設け、前記i段目の投受光器9−i、10−iの投受光が遮断された状態(S−28)で、かつ最上段投受光器9−1、10−1の投受光が遮断された状態(S−29)において、外光検知センサ15が外光検知(日照検知)をしているか否かの判断をし(S−31)、外光検知がなかった(遮断されている)と判断された場合には、さらに外光検知が予め設定される時間(例えば24時間、48時間)のあいだ外光検知がない(遮断、真っ暗)か否かの判断がなされ(S−35)、所定時間外光検知がない場合には無視している投受光器の投受光を全て再開(S−36)すると共に、障害物検知信号を出力(S−37)し、これにより開閉機5の停止をさせると共に、基材7、8に設けた報知器(図示せず)を報知させ(S−38)、これにより設定時間以降のシャッターカーテン4の閉作動においては、i段目の投受光器9−i、10−iの投受光が遮断された障害物検知状態となってシャッターカーテン4の閉作動が停止される。勿論、ブザーの吹鳴、ハザードランプの点灯をする等して報知するようにしてもよい。
On the other hand, when the light emission and reception of the uppermost-stage light emission and reception devices 9-1 and 10-1 is blocked due to foreign matter adhesion (fault) or the like, the light emission and reception devices 9-i and 10-i If the light reception remains blocked, the first obstacle control resuming means control is not executed. Therefore, the obstacle detection control unit 11 is configured to execute the second obstacle control restart means control.
In this device, an element 15 of an external light detection (illuminance) sensor is provided in or near the uppermost-stage light emission and reception devices 9-1 and 10-1, and the i-th stage light emission and reception devices 9-i and 10-i In the state (S-28) in which the light emission and reception are blocked, and in the state (S-29) in which the light emission and reception of the uppermost light emitting and receiving devices 9-1 and 10-1 are blocked (S-29) It is determined whether detection (sunshine detection) is being performed (S-31), and if it is determined that outside light detection is not detected (blocked), outside light detection is further set in advance. It is judged whether the external light is not detected (blocked or black) for a period of time (for example, 24 hours, 48 hours) (S-35). Restarts (S-36) all light emission and reception of the sensor, and outputs an obstacle detection signal (S-37). In addition to stopping the opening / closing device 5, an alarm (not shown) provided on the base members 7 and 8 is notified (S-38), whereby in the closing operation of the shutter curtain 4 after the set time, i step The closing operation of the shutter curtain 4 is stopped in an obstacle detection state in which the light emission and reception of the eye emission and reception devices 9-i and 10-i is blocked. Of course, notification may be made by sounding a buzzer or lighting a hazard lamp.

叙述の如く構成された本実施の形態において、シャッターカーテン4が閉作動する過程において、最上段の投受光器9−1、10−1の投受光が遮断される以前の段階では、該最上段の投受光器9−1、10−1の投受光はダミーとなり、次の二段目以下の投受光器9−2〜n、10−2〜nの少なくとも一つの投受光が遮断されることで障害物検知信号を出力する第一の場合、そしてこの第一の場合において最上段の投受光器9−1、10−1の投受光が遮断されたときには光遮断部13による遮断であるとして二段目以上の投受光器9−1、2、10−1、2の投受光は無視して次の三段目以下の投受光器9−3〜n、10−3〜nまでの少なくとも一つの投受光が遮断されることで障害物検知信号を出力する第二の場合、この第二の場合を含む第iの場合においてi段目の投受光器9−i、10−iの投受光が遮断されたときには光遮断部13による遮断であるとしてi+1段目以上の投受光器9−1〜(i+1)、10−1〜(i+1)の投受光は無視して次のi+2段目以下の投受光器9−(i+2)〜n、10−(i+2)〜nまでの少なくとも一つの投受光が遮断されることで障害物検知信号を出力する第i+1の場合になることを、順次最下段投受光器9−n、10−nに至るまで繰り下がるようにして障害物検知制御が実行されることになる結果、シャッターカーテン4が閉作動しているときにおいて多段に亘るきめの細かい障害物検知ができることになる。   In the present embodiment configured as described above, in the process of closing the shutter curtain 4, the top stage before the projection and reception of the projection and reception devices 9-1 and 10-1 is interrupted, the top stage The light emitting and receiving devices 9-1 and 10-1 are dummy, and at least one of the light emitting and receiving devices 9-2 to n and 10-2 to n in the second and subsequent stages is blocked. In the first case where the obstacle detection signal is output in the first case, and in the first case, when the light emission and reception of the uppermost light emission and reception devices 9-1 and 10-1 is blocked, it is assumed that the light blocking portion 13 is blocking. The light emission and reception of the second and higher stages of light emitting and receiving units 9-1, 2, 10-1 and 2 are neglected, and at least the third stage or lower level of light emitting and receiving units 9-3 to n and 10-3 to n are ignored. In the second case where an obstacle detection signal is output by blocking one light emission and reception, this second field When the light emission and reception of the i th stage of light emitting and receiving devices 9-i and 10-i is interrupted in the i-th case including the i th stage, it is considered that the light blocking section 13 is blocking. The light emission and reception of (i + 1) and 10-1 to (i + 1) are ignored, and at least one light emission and reception of light emitting and receiving devices 9- (i + 2) to n and 10- (i + 2) to n at the next i + 2 stage and below Block detection control is executed by sequentially advancing to the lowermost stage light emitting and receiving unit 9-n and 10-n that the (i + 1) th case of outputting an obstacle detection signal is interrupted by the As a result, when the shutter curtain 4 is closed, fine-grained obstacle detection can be performed over multiple stages.

一方、シャッターカーテン4が開作動している場合、最下段の投受光器9−n、10−nから順に上側の投受光器9、10の投受光が再開されることになるが、例えば途中のi段目の投受光器9−i、10−iの投受光が遮断されたままになると、障害物検知用制御部11は、シャッターカーテン4がこのi番目の投受光器9−i、10−iを遮断する位置で途中停止したものと判断し、これによってi+1段目以上の投受光器9−2〜(i+1)、10−2〜(i+1)の投受光の有無は無視することになる。この結果、途中停止したシャッターカーテン4の開閉作動を再開した場合に、停止位置からの障害物検知が確実に行われることになる。   On the other hand, when the shutter curtain 4 is opened, light emission and reception of the upper light emitting and receiving devices 9 and 10 are resumed in order from the lowermost light emitting and receiving devices 9-n and 10-n. When the light emission and reception of the i-th stage light emitting and receiving device 9-i and 10-i remain blocked, the obstacle detection control unit 11 causes the shutter curtain 4 to be the i-th light emitting and receiving device 9-i, Judging that it has stopped halfway at the position where 10-i is blocked, the presence or absence of light emission / reception of the i + 1th or higher light emitting / receiving device 9-2 to (i + 1), 10-2 to (i + 1) should be ignored. become. As a result, when the opening / closing operation of the shutter curtain 4 stopped halfway is resumed, obstacle detection from the stop position is surely performed.

このようなシャッターカーテン4の開作動において、駆動用制御部12は、前記i段目の投受光器9−i、10−iの位置で停止指令を受けていない場合、シャッターカーテン4の開作動がそのまま継続するよう駆動制御することになる。そして光遮断部13が最上段の投受光器9−1、10−1を越えて上昇した段階で、該最上段の投受光器9−1、10−1投受光が遮断状態から投受光状態に変化することになり、このようになると、障害物検知用制御部11は、シャッターカーテンが途中位置での停止ではなく最上段投受光器を越えて上昇しているものと判断し、これにより今まで無視していたi+1段目以上の投受光器9−1〜(i+1)、10−1〜(i+1)の障害物検知制御を再開させることになる。この結果、次回のシャッターカーテン4の閉作動において投受光が遮断されている投受光器9−i、10−iが障害物検知状態であるとして開閉機5は停止状態となり、この停止が障害物の存在によらない場合には、投受光器が異物付着等による不具合であることが判明し、対応したメンテナンスを促すことになって建築用電動シャッターの確実な保守ができることになる。   In the opening operation of the shutter curtain 4 as described above, the driving control unit 12 performs the opening operation of the shutter curtain 4 when the stop command is not received at the position of the i-th stage light emitting and receiving unit 9-i and 10-i. Drive control to continue as it is. Then, when the light blocking portion 13 rises above the uppermost light emitting and receiving device 9-1 and 10-1, the light emitting and receiving device 9-1 and 10-1 of the uppermost step emits and receives light from the blocking state In this case, the obstacle detection control unit 11 determines that the shutter curtain has risen beyond the uppermost projection and light receiver, not the stop at the middle position, The obstacle detection control of the light emitting and receiving devices 9-1 to (i + 1) and 10-1 to (i + 1) of the (i + 1) th and higher stages, which has been ignored up to now, is resumed. As a result, in the next closing operation of the shutter curtain 4, the open / close unit 5 is in a stop state, assuming that the light emitting / receiving unit 9-i and 10-i whose light emitting and receiving are blocked are in the obstacle detection state. If the light emitting and receiving device is not defective due to the adhesion of foreign matter or the like, the corresponding maintenance will be promoted, and the building electric shutter can be reliably maintained.

さらに、シャッターカーテン4が開作動している過程で、前記途中のi段目の投受光器9−i、10−iの投受光が遮断された場合において、さらに最上段の投受光器9−1、10−1の投受光が遮断状態のままである場合のなかには、最上段投受光器9−1、10−1に異物付着等の不具合がある場合が考えられ、この場合であるか否かの判断が、外光検知センサ15の外光検知の有無に基づいてできることになり、この結果、対応したメンテナンスを促すことになって建築用電動シャッターのさらなる確実な保守ができることになる。   Furthermore, when the light emission and reception of the i-th stage light emission and reception devices 9-i and 10-i are interrupted in the process of opening the shutter curtain 4, the light emission and reception device 9 of the uppermost stage is In the case where the light emission and reception of 1 and 10-1 remain in the blocked state, there may be a case where the uppermost light emission and reception device 9-1 and 10-1 have a defect such as the adhesion of foreign matter. This judgment can be made based on the presence or absence of the outside light detection of the outside light detection sensor 15, and as a result, the corresponding maintenance can be promoted, and further reliable maintenance of the architectural electric shutter can be performed.

本発明は、建物の出入り口等の開口部の開閉をする建築用電動シャッターにおける障害物検知装置に利用することができる。   INDUSTRIAL APPLICABILITY The present invention can be used for an obstacle detection device in an architectural electric shutter that opens and closes an opening such as an entrance of a building.

1 シャッター装置
3 巻取りドラム
4 シャッターカーテン
5 開閉機
6 ガイドレール
9 投光器
10 受光器
11 障害物検知用制御部
12 駆動用制御部
13 光遮断部
15 外光検知センサ

Reference Signs List 1 shutter device 3 take-up drum 4 shutter curtain 5 opening / closing device 6 guide rail 9 light emitter 10 light receiver 11 control unit for obstacle detection 12 control unit for driving 13 light blocking unit 15 external light detection sensor

Claims (3)

建築物の出入り口等の開口部の上部に設けられる巻取りドラムと、該巻取りドラムに巻装されるシャッターカーテンと、巻取りドラムの正逆回転をしてシャッターカーテンの開閉作動をするための電動の開閉機と、該開閉機の正逆駆動の制御をする駆動用制御部と、駆動用制御部に対して開閉停止の各指令を出力する押釦スイッチと、シャッターカーテンの開閉案内をするべく開口部の左右に設けられるガイドレールとを備えて構成される建築用電動シャッターに障害物検知装置を設けるにあたり、
該障害物検知装置は、
・ガイドレールに沿って上下に設けられる複数段の障害物検知用の投受光器と、
・該投受光器の投受光が遮断されたことに基づいて障害物検知をして障害物検知信号を駆動用制御部に出力する障害物検知用制御部と、
・シャッターカーテンの下端部に設けられ、上下に隣接する投受光器のうちの少なくとも二組の投受光を遮断する長さを備えた光遮断部と、
・障害物検知用制御部からの障害物検知信号を受けることで開閉機の停止制御をする開閉機駆動用制御部とを備えて構成されるものであり、
前記障害物検知用制御部は、
・シャッターカーテンの閉作動中においては、最上段の投受光器の投受光が遮断される以前の段階では、次の二段目以下の投受光器の少なくとも一つの投受光が遮断されることで障害物検知信号を出力する第一の場合、この第一の場合において最上段の投受光器の投受光が遮断されたときには光遮断部によるものであるとして二段目以上の投受光器の投受光は無視して次の三段目以下の投受光器の少なくとも一つの投受光が遮断されることで障害物検知信号を出力する第二の場合、この第二の場合を含む第iの場合においてi段目の投受光器の投受光が遮断されたときには光遮断部によるものであるとしてi+1段目以上の投受光器の投受光は無視して次のi+2段目以下の投受光器の少なくとも一つの投受光が遮断されることで障害物検知信号を出力する第i+1の場合になることを、順次最下段投受光器に至るまで繰り下がるようにして障害物検知制御を実行し、
・シャッターカーテンの開作動では、最下段の投受光器から順次上側の投受光器の投受光が再開することで該再開された投受光よりも一つ下段の投受光の無視が解除される制御が実行されるが、該開作動の過程において投受光が遮断されたままの投受光器が存在した場合に、該投受光が遮断されたままの投受光器の存在が停止指令の出力によるものである場合には、該遮断された投受光器位置でシャッターカーテンが停止したものと判断して、次回のシャッターカーテン閉作動では、前記遮断されたままの投受光器より一つ下段の投受光器以上の投受光は無視し、一つ下段の投受光器よりも下の投受光器による障害物検知制御を実行し、前記遮断されたままの投受光器の存在が停止指令の出力によるものでない場合には、継続する開作動で、最上段投受光器の投受光が遮断状態から投受光状態に変化したと判断された場合、投受光器の投受光の無視を全て解除して次回のシャッターカーテンの閉作動の障害物検知制御を実行することを特徴とする建築用電動シャッターにおける障害物検知装置。
A winding drum provided at the top of an opening such as an entrance and exit of a building, a shutter curtain wound around the winding drum, and forward and reverse rotation of the winding drum to open and close the shutter curtain Electric motorized open / close machine, drive control unit for controlling forward / reverse drive of the open / close machine, push button switch for outputting each command of open / close stop to drive control unit, open / close guidance of shutter curtain In providing the obstacle detection device to the architectural electric shutter including the guide rails provided on the left and right of the opening,
The obstacle detection device
· Multiple-stage light emitting and receiving units for obstacle detection provided at the top and bottom along the guide rails,
An obstacle detection control unit that detects an obstacle based on blocking of light emission and reception of the light emission and reception device and outputs an obstacle detection signal to a drive control unit;
A light blocking portion provided at a lower end portion of the shutter curtain and having a length for blocking at least two pairs of light emitting and receiving units of the vertically adjacent light emitting and receiving units;
A control unit for switchgear drive that performs stop control of the switchgear by receiving an obstacle detection signal from the control unit for obstacle detection, and configured
The obstacle detection control unit
-During the closing operation of the shutter curtain, at least one of the light emitting and receiving devices of the second and subsequent stages is cut off before the light emitting and receiving of the uppermost light emitting device is cut off. In the first case where an obstacle detection signal is output, in the first case, when the light emission and reception of the uppermost light emission and reception device is blocked, it is assumed that the light blocking portion In the second case where the obstacle detection signal is output by ignoring light reception and blocking light emission and reception of at least one of the third and subsequent stages of light emitting and receiving devices, the second case including the second case When the light emission and reception of the i-th stage light emission and reception is interrupted, the light emission and reception of the i + 1 and higher stages and the light emission and reception of the i + 1 and higher stages are ignored and it is Obstacle detection by blocking at least one light emitting and receiving (I + 1) th to become that when, running as down repeated until the sequential bottom emitter and receiver obstacle detection control for outputting No.,
-In the shutter curtain opening operation, control is performed such that the light emission and reception of the upper light emitting and receiving device is resumed sequentially from the lowermost light emitting and receiving device, and ignoring of the light emitting and receiving one lower than the restarted light emitting and receiving Although but is executed, if the open operation remain on the emitter and receiver of the light emitting and receiving is blocked in the course of the present, those present in the emitters and receivers remain-projecting light is blocked by the output of the stop command If it is, it is judged that the shutter curtain emitter and receiver positions, which is the cut off is stopped, the next shutter curtain closing operation, one lower light emitting and receiving from emitters and receivers remain the blocking Light emission and reception above the target is ignored, and obstacle detection control is performed by the lower light emitter and receiver lower than the one lower light emitter and receiver, and the presence of the light emitter / receiver as it is blocked is output by the stop command output. If it is not a thing, continue opening operation If it is determined that the light emission and reception of the uppermost emitter and receiver is changed from the cutoff state to the light emission and reception conditions, the obstacle detection control of the closing operation of the next shutter curtain to release all ignore the light projecting and receiving the emitter and receiver An obstacle detection device for an architectural electric shutter characterized in that it is implemented .
最上段投受光器のなか又はその近傍に外光検知センサが設けられ、障害物検知用制御部には、シャッターカーテンの作動で、最上段投受光器を除いた少なくとも一つの投受光器の投受光が遮断され、かつ最上段投受光器の投受光が遮断されたままの状態のとき、外光検知センサの外光検知がなかった場合に、無視していた全ての投受光器の障害物検知制御を再開させる第二の障害物制御再開手段が設けられていることを特徴とする請求項1記載の建築用電動シャッターにおける障害物検知装置。 An external light detection sensor is provided in the vicinity of or in the top-stage projector and receiver, and the control unit for detecting an obstacle includes at least one of the projector and receiver excluding the top-stage projector and receiver when the shutter curtain is opened . In the state in which the light emission and reception is blocked and the light emission and reception of the uppermost light emission and reception is blocked, the failure of all the light emitting and receiving devices that were neglected when the external light detection sensor did not detect the external light 2. An obstacle detection device for an architectural electric shutter according to claim 1, further comprising second obstacle control resuming means for resuming object detection control. 外光検知センサの外光検知がなかった場合の無視していた全ての投受光器の障害物検知制御再開は、外光検知がない状態が予め設定される時間維持されたときに実行されることを特徴とする請求項2記載の建築用電動シャッターにおける障害物検知装置。
Resumption of the obstacle detection control of all light emitting and receiving devices that were ignored when outside light was not detected by the outside light detection sensor is executed when the time when no outside light is detected is maintained for a preset time. The obstacle detection device in an architectural electric shutter according to claim 2, characterized in that:
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