JP4794997B2 - Opening and closing control device for opening and closing body - Google Patents

Description

  The present invention relates to opening / closing control of an opening / closing body, and in particular, opening / closing of the opening / closing body for performing opening / closing control of the opening / closing body when the opening / closing body maintained in a fully closed state or substantially fully closed state is forcibly opened. In connection with a control device, for example, a shutter device for an opening formed by connecting slats made of metal or the like, a shutter device for disaster prevention, a panel shutter device formed by connecting panels made of metal or the like, a sliding type It can be used for an overhead door type shutter device, and further, a hinged door device and a sliding door device including a fire door device and a fire door device.

  Conventionally, a switch having a motor that at least closes a shutter curtain that is an opening / closing body, a microcomputer that is a control unit that executes control for closing the shutter curtain, and a fully closed state Alternatively, a forced opening operation (for example, intentionally moving the shutter curtain in the opening operation direction instead of opening the shutter curtain with an opening switch or the like) by opening the shutter curtain, which is maintained in a substantially fully closed state, is performed. There has been proposed a shutter curtain opening / closing control device including a lower limit switch which is a detecting means for forcibly opening / closing opening / closing body to be detected. (For example, refer to Patent Document 1).

This shutter curtain opening / closing control device controls the microcomputer to unconditionally close the shutter curtain when it is detected that the shutter curtain that has been fully closed or substantially fully closed is forcibly opened. Is executed for the switch.
JP-A-8-254087 (FIG. 1)

  By the way, when the shutter curtain is forcibly opened by prying open or the like, it is preferable for crime prevention to forcibly close the shutter curtain that has been forcibly opened.

  However, a person trying to maliciously enter the other space from one space that is partitioned by the shutter curtain, that is, an unauthorized intruder prying open the shutter curtain and passing under this broken shutter curtain, There is a possibility that the intruder may come into contact with the shutter curtain being forcibly closed and cannot pass under the shutter curtain.

  Such a situation can also occur when a person in one space partitioned by the shutter curtain has to rescue a person left in the other space in an emergency such as a fire. In other words, the person who is going to rescue needs to open the shutter curtain and pass under the opened shutter curtain, and the person who is going to rescue is forcibly closing while passing through the opened shutter curtain. May come into contact with the shutter curtain and fail to pass under the shutter curtain. In addition, in order to move away from the other space together with the person who went to rescue, the person who is left behind must open the shutter curtain again and pass under the opened shutter curtain. Even in this case, there is a possibility that a human being left behind and / or a human heading for rescue may come into contact with the shutter curtain being forcibly closed and cannot pass under the shutter curtain.

  For this reason, when the shutter curtain is forcibly opened, the opening / closing control is performed in consideration of safety for the person who has forcibly opened the shutter curtain or the person near the tip of the shutter curtain on the closing side. Proposal of a shutter curtain opening / closing control device that can perform the above is desired.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an opening / closing control device for an opening / closing body that can perform opening / closing control considering safety for a person who has performed the opening / closing operation of the opening / closing body when the opening / closing body is forcibly opened. Is to provide.

  An opening / closing control device for an opening / closing body according to the present invention comprises: an opening / closing device that at least closes the opening / closing body; a control unit that executes control for at least closing the opening / closing body with respect to the opening / closing device; And an opening / closing body forced opening operation detecting means for detecting a forced opening operation of the opening / closing body that is maintained in a fully closed state, and the opening / closing body forced opening operation detecting means performs the forced opening operation of the opening / closing body. When detected, in the opening / closing body opening / closing control apparatus for executing the control for closing the opening / closing body to the opening / closing device, the control unit forcibly opens the opening / closing body by the opening / closing body forced opening operation detecting means. Opening / closing body position information detecting means for detecting position information of a closed end of the opening / closing body when an operation is detected, and the position detected by the opening / closing body position information detecting means According to the information, when the control unit determines that the position of the tip of the opening / closing body that has been forcibly opened is a predetermined position different from the fully closed position or a position closer to the open side than the predetermined position, the control unit Is characterized in that control for closing the opening / closing body is performed on the opening / closing device until the tip of the opening / closing body reaches the predetermined position.

  In the present invention, there is provided opening / closing body position information detecting means for detecting position information of the front end portion of the opening / closing body when the forced opening operation of the opening / closing body is detected by the opening / closing body forced opening operation detecting means. Based on the position information detected by the opening / closing body position information detecting means, the control unit determines the position of the tip of the opening / closing body that has been forcibly opened.

  When the control unit determines that the position of the tip of the opening / closing body that has been forcibly opened is the predetermined position different from the fully closed position or a position closer to the opening than the predetermined position, in other words, the opening / closing body When it is determined that the forcible opening operation has been performed up to the predetermined position different from the fully closed position or a position closer to the opening side than the predetermined position, the control unit reaches the predetermined position or a position near the predetermined position. The control for closing the opening / closing body is executed on the opening / closing machine. In other words, the control unit executes control for closing the opening / closing body until the tip of the opening / closing body reaches the predetermined position or a position near the predetermined position.

  As a result, the opening / closing body that has been forcibly opened stops the closing operation when the front end on the closing side reaches the predetermined position or a position in the vicinity thereof. As a result, a predetermined gap is secured between the front end of the opening / closing body and the closed surface (the floor surface, the ground, the wall surface, the peripheral edge of the opening, etc.) opposed to the front end.

  Here, the “predetermined position” means that there is no harm to this person when there is a person who is standing between the closed end of the opening / closing body and the closed surface where the end faces. The position in the opening / closing operation direction of the closing end of the opening / closing body when the opening / closing body is forcibly opened until a certain gap is formed. More specifically, for example, when the opening / closing body is a shutter curtain and the opening operation direction is upward and the closing operation direction is downward, the front end of the shutter curtain faces the front end. Even if there is a human who is standing between the floor and the like, the position where the human is not easily damaged. And if this "predetermined position" is conscious of crime prevention to prevent unauthorized intrusion, it is preferable that it is a position where a person who is scolding cannot pass through, such as rescuing a human left behind, etc. If it is not conscious of crime prevention, it is preferable that the position is such that a person who is talking can pass through. However, it is necessary to determine the position in consideration of the purpose for which the opening / closing body is forcibly opened for the purpose, and it is generally considered that the position is close to the fully closed position.

  As specific values of the “predetermined position” in consideration of the above, for example, the minimum value is a position on the open side of about 2 cm to about 20 cm from the closed surface, and the maximum value is a position on the open side of about 30 cm to about 80 cm from the closed surface. Etc.

  In addition, “predetermined position” does not necessarily mean an exact position, but means a target position. This position actually depends on the characteristics of the switch, the structure of the switch, etc. It is.

  Therefore, in the case of an emergency intruder who maliciously enters the other space from one space partitioned by the opening / closing body or an emergency such as the occurrence of a fire, the person left in the other space is rescued. A person or the like (hereinafter referred to as “illegal intruder”, etc.) in the one space forcibly opened the opening / closing body to a predetermined position different from the fully closed position or a position closer to the opening side than the predetermined position by prying it open. In some cases, a clearance is secured between the front end portion on the closing side of the opening / closing body and the closed surface facing the front end portion so as not to cause harm to an unauthorized intruder or the like.

  Therefore, according to the present invention, compared with a conventional opening / closing body opening / closing control device, when the opening / closing body is forcibly opened, the opening / closing considering safety for a person who has performed the opening / closing operation of the opening / closing body. You will be able to control.

  The “opening / closing device that at least closes the opening / closing body” only needs to be able to move the opening / closing body in at least the closing operation direction, and when the opening / closing device includes, for example, a motor and a brake, Also included is one that can close the open / close body by its own weight by releasing the brake.

  “Fully closed state or substantially fully closed state is maintained” means that the administrator of the switchgear or the like manually or electrically closes the open / close body until it is fully closed or substantially fully closed. In case of emergency such as fire, etc., the opening / closing body is blocked by the operation of the lock mechanism after the opening / closing body is closed until it is fully closed or almost fully closed by receiving a disaster prevention signal, etc. The state that was done.

  In the present invention, it is provided with obstacle detecting means for detecting an obstacle present in a direction having a component of a closing operation direction of the opening / closing body, and until the tip of the opening / closing body reaches the predetermined position or a position near the predetermined position. The control unit that performs control for closing the opening / closing body with respect to the opening / closing device is configured so that the obstacle sensing unit is configured to detect when the tip of the opening / closing body reaches the predetermined position or a position near the predetermined position. When the obstacle is not sensed, control for continuing the closing operation of the opening / closing body may be executed on the switch.

  This is because the control unit executes the control for closing the opening / closing body until the tip of the opening / closing body reaches the predetermined position or a position near the predetermined position, and detects the obstacle. When an obstacle is not detected by the means, an unauthorized intruder or the like is placed in a gap formed between the distal end portion on the closing side of the opening and closing body and the closed surface facing the distal end portion by a forced opening operation. In this case, the opening / closing body can be determined to be non-existent (such as an unauthorized intruder or the like having passed through the gap, or an unauthorized intruder or the like did not pass through the gap). This is because it is considered that there is no problem even if the closing operation is continued.

  Therefore, for example, an unauthorized intruder forcibly opens the opening / closing body to the predetermined position or a position closer to the opening side than the predetermined position, but enters the other space from one space partitioned by the opening / closing body. When the operation is stopped, the forcibly opened opening / closing body continues the closing operation, which is a preferable state for crime prevention.

  In the present invention, when the obstacle sensing means is provided, the type, structure, etc. of the obstacle sensing means are arbitrary, the number of obstacle sensing means provided is also arbitrary, and one or a plurality of obstacle sensing means may be provided. But you can. The obstacle sensing means may be constituted by a contact type obstacle sensing means capable of sensing this obstacle by contact with an obstacle present in a direction having a component of the closing operation direction of the opening / closing body, It may be composed of non-contact type obstacle sensing means capable of sensing this obstacle without contact with the obstacle present in the direction having the closing operation direction component of the opening / closing body. It may be configured by both an obstacle sensing means and a non-contact type obstacle sensing means.

  When the obstacle sensing means is composed of both a contact type obstacle sensing means and a non-contact type obstacle sensing means, the obstacle sensing means is selected from the contact type obstacle sensing means and the non-contact type obstacle sensing means. Obstacles can be more reliably detected as compared with the case of either one of the above. Therefore, in the present invention, when the obstacle sensing means is provided, it is more preferable that the obstacle sensing means is composed of both the contact type obstacle sensing means and the non-contact type obstacle sensing means.

  In the present invention, as a first configuration example of the obstacle sensing means, the contact-type obstacle sensing means capable of sensing the obstacle by contact with the obstacle, and the contact without being contacted with the obstacle. Non-contact type obstacle sensing means capable of sensing an obstacle, and the contact type obstacle sensing means is provided at the tip of the opening / closing body and comes into contact with the obstacle. A pair of guide members which are provided on both sides of the opening / closing body in the width direction and guide the opening / closing body in the opening / closing operation direction. A transmission unit for transmitting an obstacle detection signal at a position closer to the open side than the predetermined position, and provided at the other of the pair of guide members for detecting the obstacle. A receiver for receiving a signal, Mention may be made of those sensing the obstacle by the obstacle sensing signal transmitted from the signal unit is blocked by the obstacle.

  In this first configuration example, when the non-contact type obstacle sensing means senses the obstacle until the tip of the opening / closing body reaches the predetermined position or a position in the vicinity thereof, the control unit The control device may execute control for closing the opening / closing body until the tip of the opening / closing body reaches a fully closed position or a position near the fully closed position.

  The non-contact type obstacle until the front end of the opening / closing body reaches the predetermined position or a position near the opening / closing body when the control unit performs control for closing the opening / closing body with respect to the opening / closing device. When the object sensing means senses the obstacle, there is an unauthorized intruder or the like at the predetermined position or a position closer to the opening side of the opening / closing body than the predetermined position. A gap formed between the distal end portion on the closed side of the body and the closed surface facing the distal end portion has a space through which an unauthorized intruder or the like can pass. For this reason, even if the closing operation of the opening / closing body continues as it is, it is highly possible that an unauthorized intruder or the like can pass through the gap in a crawled state.

  Therefore, in such a case, the control unit executes a control for closing the opening / closing body until the tip end portion of the opening / closing body reaches the fully closed position or a position in the vicinity thereof. Also good.

  Further, as a second configuration example of the obstacle sensing means, a contact type obstacle sensing means capable of sensing the obstacle by contact with the obstacle, and the obstacle regardless of contact with the obstacle. Non-contact type obstacle sensing means capable of sensing the obstacle, and the contact type obstacle sensing means is provided at the tip of the opening / closing body and makes contact with the obstacle. The non-contact type obstacle sensing means is provided at the distal end portion of the opening / closing body and transmits an obstacle sensing signal at a position closer to the closing side than the distal end portion. A transmission unit for receiving the obstacle sensing signal at a position closer to the closing side than the distal end, and is transmitted from the transmission unit. The obstacle detection signal is blocked by the obstacle. Mention may be made of those sensing the obstacle by the.

  In the second configuration example, when the contact-type obstacle sensing means does not sense the obstacle until the tip of the opening / closing body reaches the predetermined position or a position near the predetermined position, and When the non-contact type obstacle sensing means senses the obstacle, the control unit performs a control for closing the opening / closing body until the tip of the opening / closing body reaches the predetermined position or a position near the predetermined position. You may perform to the said switch.

  According to this, when the non-contact type obstacle sensing means senses an obstacle, the control unit performs control for closing the opening / closing body until the tip of the opening / closing body reaches the predetermined position or a position in the vicinity thereof. It will be executed for the switch. Therefore, in the second configuration example, the opening / closing control considering safety for a person who has performed the forcible opening operation of the opening / closing body is performed more quickly.

  As another example of the non-contact type obstacle sensing means, provided on at least one of a pair of guide members disposed on both sides in the width direction of the opening / closing body and guiding the opening / closing body in the opening / closing operation direction, A receiving unit that detects infrared rays at a position closer to the open side than a predetermined position, and that detects the obstacles when the receiving unit receives infrared rays emitted from obstacles (such as unauthorized intruders). Can do.

  As still another example of the non-contact type obstacle sensing means, provided on at least one of a pair of guide members disposed on both sides in the width direction of the opening / closing body and guiding the opening / closing body in the opening / closing operation direction. A transmission / reception unit that transmits / receives an obstacle detection signal at a position closer to the opening than the predetermined position, and when there is an obstacle (such as an unauthorized intruder), the obstacle detection transmitted from the transmission / reception unit. An example is one in which the obstacle is detected when the transmission / reception unit receives the obstacle detection signal reflected when the signal is applied to the obstacle.

  In the above, the obstacle detection signal transmitted from the transmission unit is arbitrary, and may be a light beam such as an LED beam, a laser, or an infrared ray, or an ultrasonic wave, and the reception unit can detect an obstacle. I just need it.

  As described above, as an example of contact-type obstacle sensing means capable of sensing the obstacle by contact with the obstacle, provided at the tip of the opening / closing body and contacting the obstacle Although the thing provided with the sensing part which senses the said obstacle was mentioned, this contact type obstacle sensing means is good also as what also serves as the said opening-and-closing body forced opening operation | movement detection means.

  According to this, the end of the closing side of the opening / closing body that is maintained in the fully closed state or the substantially fully closed state is opened at the open side by a tool such as a bar or a human hand. As a result, the control unit can determine that the opening / closing body has been forcibly opened.

  Further, as another example of the contact type obstacle sensing means capable of sensing the obstacle by contact with the obstacle, it is arranged at the tip of the opening / closing body and is movable in the opening / closing operation direction of the opening / closing body. A movable member and a sensing unit for sensing the movement of the movable member, and the movable member moves to the open side relative to the sensing unit by contact with the obstacle. Can be used to detect the obstacle.

  According to this, when the moving member moves to the open side relative to the sensing unit due to contact with the obstacle, the sensing unit enters the obstacle sensing state. A predetermined distance (stroke) can be moved to the open side relative to the part. In other words, even after the moving member comes into contact with the obstacle, the opening / closing body can be moved a predetermined distance in the closing operation direction.

  Therefore, when the moving member comes into contact with an obstacle at the predetermined position or a position near the predetermined position, the opening / closing body can further move by a predetermined distance in the closing operation direction. That is, the opening / closing body during the closing operation can be further closed until the front end portion (a part other than the moving member) of the opening / closing body reaches the predetermined position or a position in the vicinity thereof.

  For this reason, when the contact-type obstacle sensing means senses an obstacle at the predetermined position or at a position closer to the open side than the predetermined position, the control unit detects that the tip of the opening / closing body is at the predetermined position or Control for closing the opening / closing body until it reaches a near position may be executed on the opening / closing machine.

  It should be noted that the structure, principle, etc. for bringing the sensing unit into the obstacle sensing state when the moving member moves to the open side relative to the sensing unit due to contact with the obstacle is arbitrary. As an example, the sensing unit is a push button type micro switch, and an elastic member such as a leaf spring is provided between the sensing unit and the moving member, and at the same time as the moving member relatively moves, the elastic member accumulates elastic force. On the other hand, it can be mentioned that the sensing unit becomes an obstacle sensing state by pressing the button of the sensing unit. In this first example, when the obstacle moves away from the moving member, the moving member returns to the original position by the elastic force of the elastic member. As a second example, the moving member is provided with a transmission unit that transmits a transmission signal such as an LED beam, a laser infrared ray, or an ultrasonic wave, and a reception unit that receives the transmission signal transmitted from the transmission unit. An example of the sensing unit is one in which an elastic member such as a leaf spring is provided between the receiving unit and the moving member. In this example, when the moving member relatively moves, a transmission signal is transmitted from the transmission unit to the reception unit serving as the detection unit, so that the reception unit is in an obstacle detection state. Also in this second example, when the obstacle is separated from the moving member, the moving member returns to the original position by the elastic force of the elastic member.

  In the present invention, when the obstacle detection means is provided, the obstacle detection by the contact type obstacle detection means is such that the tip of the opening / closing body reaches the fully closed position or the vicinity thereof from the predetermined position or the vicinity thereof. More preferably, the control unit performs predetermined opening / closing control on the opening / closing body on the opening / closing device.

  The control unit executes control for closing the opening / closing body until the tip of the opening / closing body reaches the fully closed position or the vicinity thereof from the predetermined position or the vicinity thereof. When the closing operation is performed, the gap formed between the distal end portion of the opening and closing body and the closing surface facing the distal end portion has a space that is difficult for an unauthorized intruder or the like to pass through. Probability is high. However, it may happen that a small person, a child, or the like rushes through this gap and tries to pass through.

  For this reason, it is more preferable that the control unit performs predetermined opening / closing control on the opening / closing body on the switch so that safer measures can be taken against unauthorized intruders and the like even if such a situation occurs. .

  Here, as the predetermined opening / closing control for the opening / closing body, for example, the opening / closing body is opened by a predetermined distance, the opening / closing body is stopped at this position for a predetermined time, and then the opening / closing body is closed again. (May be repeated a predetermined number of times while in the obstacle sensing state).

  In the present invention, the closing end of the opening / closing body may be provided with a flexible portion that can be expanded and contracted in the opening / closing operation direction of the opening / closing body. In this case, even if the tip portion has reached the predetermined position or a position near the predetermined position, the control unit takes into account the reduced amount of the flexible portion. Control for continuing the closing operation of the opening / closing body until the position or the vicinity thereof may be performed on the switch.

  Since the distal end portion of the opening / closing body is provided with a flexible portion, even when the distal end portion of the opening / closing body abuts against an obstacle when the opening / closing body is closing, the opening / closing body is thereafter flexible. Further closing operation can be performed by the reduction of the part.

  For this reason, even when the tip of the opening / closing body that is being closed has reached the predetermined position or a position in the vicinity thereof, the control unit takes into account the reduction of the flexible part of the tip of the opening / closing body. Control for continuing the closing operation of the opening / closing body until reaching the predetermined position or the position in the vicinity thereof can be executed on the opening / closing device.

  Here, the “flexible part” is a so-called long stroke in the case where the cushioning material made of rubber or the like having a certain thickness (solid or hollow with air inside) or the opening / closing body is a shutter curtain. Refers to a seat board. The “reduced portion” indicates the amount, length, etc., of the flexible portion that contracts when an obstacle that exists in the closing operation direction of the opening / closing body comes into contact with the obstacle without applying much load to the obstacle. . For example, in the case of the long stroke seat plate, the amount of movement until the shutter curtain stops after the obstacle comes into contact with the seat plate, in other words, the shutter with respect to the time lag corresponding to the time until the shutter curtain stops. Preferably all of the curtain travel distance corresponds to a margin to absorb at least a significant amount. “Considering” means taking into account the length and distance of the portion where the flexible portion shrinks.

  In order to determine whether the front end of the opening / closing body has reached the predetermined position or a position near the predetermined position taking into account the reduction of the flexible portion, for example, the flexible section A flexible part reduction amount measuring means for measuring the reduction amount of the flexible part, and when the reduction amount of the flexible part measured by the flexible part reduction amount measurement means reaches a predetermined amount, the tip of the opening / closing body is reduced in the flexible part. You may make it determine with having reached the said predetermined position or the vicinity position in consideration of minutes.

  In the present invention described above, the type, structure, etc. of the opening / closing body position information detecting means can detect whether the position of the front end portion on the closing side of the opening / closing body is the predetermined position or a position closer to the opening side than the predetermined position. If it is a thing, it is arbitrary.

  As an example of the opening / closing body position information detecting means, the opening / closing body is provided at the predetermined position in at least one of a pair of guide members disposed on both sides of the opening / closing body to guide the opening / closing body in the opening / closing operation direction. An example is a limit switch that operates by abutting the widthwise end of the tip of the open / close body during operation. In this example, a control part will determine the position of the said front-end | tip part of an opening-closing body from the signal output from this limit switch.

  In the present invention described above, there is provided an opening / closing body forced opening operation notification means for notifying the outside of the occurrence of the forced opening operation of the opening / closing body when the opening / closing body forced opening operation detection means is detected. More preferred.

  According to this, an administrator or a guard can quickly know that a forced opening operation of the opening / closing body has occurred, so that an administrator or a guard can perform the forced opening operation of the opening / closing body. It is possible to quickly take appropriate measures for the forced opening operation of the opening and closing body by rushing to the opening and closing device.

  Here, the form, structure, etc. of the opening / closing body forced opening notification means are arbitrary. For example, an abnormality is notified by an alarm or a synthesized sound of a human being through a speaker, or a red or yellow flashing light is flashing. Can be mentioned, or a combination of these.

  The present invention as described above can be applied to any opening / closing device, for example, an opening shutter device, a shutter device for disaster prevention, or an opening / closing device whose opening / closing body is a shutter curtain formed by connecting metal slats continuously. Grill shutter device whose body is formed by connecting panels made of metal, etc., sliding door overhead door type shutter device, etc., as well as swing door devices and sliding door devices including fire door devices and fire door devices Etc. can be applied.

  When the opening / closing body is a shutter curtain, the shutter curtain can be one that opens and closes by winding and unwinding with a winding shaft.

  In the present invention, the opening / closing operation direction of the opening / closing body is arbitrary. For example, when the opening / closing body is the shutter curtain, as an example of the opening / closing operation direction of the shutter curtain, a direction having a vertical component. It is possible to open and close, and the upper direction is the opening operation direction and the lower direction is the closing operation direction.

  When the opening / closing body is a shutter curtain that opens and closes by winding and unwinding with a winding shaft, the opening / closing body position information detecting means may be a rotary encoder attached to the winding shaft. In this case, the control unit may determine that the opening / closing body has been forcibly opened by outputting a pulse signal from the rotary encoder.

  In the present invention described above, the control by the control unit may be executed by software or may be executed by hardware such as a logic circuit, and is arbitrary.

  In the above-described present invention, the form, structure, etc. of the opening / closing body forced opening operation detecting means for detecting the opening / closing body forced opening operation are arbitrary, and as described above, the contact type obstacle sensing means detects the opening / closing body forced opening operation detection. As a first example of the opening / closing body forced opening operation detecting means, a pair of doors disposed on both sides in the width direction of the opening / closing body and guiding the opening / closing body in the opening / closing operation direction. A limit that is provided at the fully closed position (in other words, the lower limit position) of the opening / closing body in at least one of the guide members and that is operated by contact with the end portion in the width direction of the distal end portion of the opening / closing body that has been forcibly opened. A switch can be mentioned. In the first example, the control unit determines that the opening / closing body has been forcibly opened by, for example, switching the limit switch from an off state to an on state.

  As a second example of the opening / closing body forced opening operation detecting means, the opening / closing body is attached to at least one of both ends in the width direction of the closing end portion of the opening / closing body, and based on the opening / closing operation of the opening / closing body, And a DC generator that generates electric power relative to at least one of the pair of guide members, and an electric power measuring means that measures electric power output from the DC generator. be able to. In the second example, the control unit can determine whether or not the opening / closing body has been forcibly opened by measuring the power by the power measuring means.

  Further, as a third example of the opening / closing body forced opening operation detecting means, a projector provided at a fully closed position of the opening / closing body in one of the pair of guide members, and an opening / closing body in the other of the pair of guide members And a photosensor using a phototransistor or a photodiode as a light receiving element. According to this, when the opening / closing body is in the fully closed state or substantially fully closed state, light is always emitted from the projector, but the light from this projector is opened or closed in the fully closed state or substantially fully closed state. It is blocked by the body so that it cannot receive light at the light receiving part. Then, when the opening / closing body is forcibly opened, the light from the light projector blocked by the opening / closing body is received by the light receiver. Thereby, the control part can determine whether the opening-closing body performed forced opening operation | movement.

  As a first example of the opening / closing body forced opening operation detecting means when the opening / closing body is a shutter curtain that is wound and fed by a winding shaft, a two-phase rotary encoder attached to the winding shaft, And a pulse phase discrimination means for discriminating the phases of the two-phase pulses output from the phase type rotary encoder. This pulse phase discriminating means discriminates the rotation direction (forward rotation direction, reverse rotation direction) of the winding shaft from the phase difference between the two pulses of the A phase and the B phase output from the rotary encoder. When the opening / closing body is forcibly opened, the winding shaft that winds and feeds the opening / closing body rotates in the reverse direction. Therefore, the control unit causes the opening / closing body to be forcibly opened based on the discrimination result output from the pulse phase discrimination means (for example, a pulse such as 1 for forward rotation and 0 (zero) for reverse rotation). It can be determined whether or not.

  In addition, as a second example of the opening / closing body forced opening operation detecting means when the opening / closing body is a shutter curtain that is wound and fed out by a winding shaft, the opening / closing body is attached to the winding shaft and rotated by the winding shaft. Examples include a DC generator that generates electric power and current direction determination means that determines the direction (positive / negative) of the current output from the DC generator. According to this, the control unit causes the opening / closing body to be forcibly opened based on the determination result output from the current direction determination means (for example, a pulse such as 1 for positive and 0 (zero) for negative). It can be determined whether or not. Instead of the current direction determining means, voltage phase determining means for determining the phase (positive / negative) of the voltage output from the DC generator may be provided.

  According to the present invention, when the opening / closing body is forcibly opened, it is possible to perform opening / closing control in consideration of safety for a person who has performed the opening / closing operation of the opening / closing body.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. First, the whole front view of the shutter device 1 for an opening of a building provided with the opening / closing control device 30 for the opening / closing body according to the first embodiment when the shutter curtain 8 as the opening / closing body is forcibly opened. 1 will be described.

  The opening shutter device 1 opens and closes an opening 2 that is an entrance / exit formed in a building housing 6 such as a wall that partitions an indoor side and an outdoor side of a building with a shutter curtain 8. A horizontal winding shaft 11 is rotatably supported by a pair of left and right brackets 16 on the upper portion of the opening 2, and an upper end portion, that is, an end portion on the winding shaft 11 side, is coupled to the winding shaft 11. The left and right ends of the shutter curtain 8 are prevented from being removed by a retaining member (not shown) inside a guide rail 13 which is provided in the building housing 6 and guides the shutter curtain 8 in the opening / closing operation direction. , Is slidably inserted.

  The shutter curtain 8 includes a curtain body 9 and a seat plate 10 that is an end member provided at the lower end of the curtain body 9. For this reason, in this 1st Embodiment, the lower surface of this seat board 10 becomes the front-end | tip part of the closing side of the shutter curtain 8 which is an opening / closing body. In this embodiment, the seat plate 10 is not a so-called long stroke seat plate, but has a margin enough to absorb the amount of movement from when the obstacle comes into contact with the seat plate 10 until the shutter curtain 8 stops. It is a normal seat board that does not have. The curtain body 9 is formed by connecting a large number of metal slats, and the shutter curtain 8 having such a slat type is wound around a winding shaft 11 in a normal state.

  The take-up shaft 11 and the pair of left and right brackets 16 and the like are arranged inside the shutter case 12 provided in the upper part of the opening 2, that is, in the ceiling back space 4 partitioned from the indoor space 3 by the ceiling member 5. Built in.

  The shutter curtain 8 is unwound and wound by forward and reverse rotation of the winding shaft 11, and the opening / closing operation of the shutter curtain 8 is performed while being guided by the guide rail 13.

  One of the pair of left and right brackets 16 (the right side in FIG. 1) is provided with an opening / closing device 40 that is composed of a combination of a motor and a brake and that opens and closes the shutter curtain 8. The take-up shaft 11 is connected to a power transmission means 17 including a chain, a sprocket and the like.

  The building housing 6 provided with one of the pair of left and right guide rails 13 (the right side in FIG. 1) is provided with an open / close switch 20 for opening and closing the shutter curtain 8 electrically. , An open button 21, a close button 22, and a stop button 23.

  When the closing button 22 of the opening / closing switch 20 is operated, the motor of the opening / closing machine 40 is positively driven (closed driving), so that the shutter curtain 8 is closed from the winding shaft 11 while being forwardly rotated by the winding shaft 11. (Lowering), the seat plate 10 comes into contact with the floor 7 (or reaches the fully closed position or the vicinity thereof), and the shutter curtain 8 is in the fully closed state or the substantially fully closed state, whereby the opening 2 Is closed by a shutter curtain 8. At this time, the shutter curtain 8 is maintained in a fully closed state or a substantially fully closed state by an automatic or manual operation of a lock mechanism (not shown).

  On the other hand, when the open button 21 of the opening / closing switch 20 is operated, the motor of the opening / closing machine 40 is reversely driven (opening driving), whereby the shutter curtain 8 is wound around the winding shaft 11 by the reverse rotation of the winding shaft 11. Opening operation (raising) is performed. The shutter curtain 8 is wound around the winding shaft 11 until the shutter curtain 8 is guided by the pair of left and right guide rails 13 to open and reaches the lintel that forms the lower surface of the shutter case 12. As a result, the shutter curtain 8 brings the opening 2 into a fully open state or a substantially fully open state.

  In the event of a power failure, the shutter curtain 8 is opened by winding up the shutter curtain 8 with a handle or chain (not shown), while the shutter curtain 8 is closed by pulling a descent string (not shown). This is done by dropping the curtain 8 by its own weight.

  Next, the opening / closing control device 30 for the opening / closing body according to the first embodiment will be described in detail. FIG. 2 is a configuration diagram of the opening / closing control device 30 for the opening / closing body.

  As shown in FIG. 2, the opening / closing control device 30 for the opening / closing body according to the first embodiment executes an opening / closing device 40 for opening / closing the shutter curtain 8 and a control for opening / closing the shutter curtain 8 for the opening / closing device 40. The control unit 50 for performing the operation, the opening / closing body forcibly opening operation detecting means 60 for detecting the forcibly opening operation of the shutter curtain 8 maintained in a fully closed state or a substantially fully closed state by a lock mechanism (not shown), Opening / closing body position detection information detecting means for detecting position information of the front end of the shutter curtain 8 when the opening operation detecting means 60 detects the forced opening operation of the shutter curtain 8, A limiter that detects that the front end of the closing side has been forcibly opened to a predetermined height position or to an opening side from the predetermined height position. A position detecting switch 70 is a switch, is configured as a non-contact type obstacle sensing means 80 for sensing an obstacle present in the closing movement direction of the shutter curtain 8, it includes.

  The opening / closing machine 40 includes a motor 42 that drives forward and reverse to rotate the winding shaft 11 forward, a brake 43 that stops forward and reverse driving of the motor 42, drive control of the motor 42, and release of the brake 43. , A switch drive control circuit 41 for executing return control, a fully open limit switch 44 for determining whether the shutter curtain 8 is fully open or substantially fully open, and the shutter curtain 8 is fully closed or substantially fully closed. And a fully-closed limit switch 45 for determining whether or not.

  The control unit 50 includes a RAM 51, a ROM 52, and an MPU (microprocessor unit) 53. In the first embodiment, the MPU 53 reads the control program or fixed data previously recorded in the ROM 52 into the RAM 51 and executes control for opening / closing the shutter curtain 8 while referring to the RAM 51. In addition, various control processes described later are executed.

  The opening / closing body forced opening operation detecting means 60 also serves as a contact type obstacle detecting means for detecting an obstacle present in the closing operation direction of the shutter curtain 8, and is provided on the lower surface of the seat plate 10 of the shutter curtain 8. A pressure-sensitive seat board switch 61 that senses an object, and a transmission unit 62 (integrated circuit (IC) that transmits an obstacle sensing transmission signal 64 (see FIG. 1) when the seat board switch 61 senses an obstacle. And a receiving unit 63 that receives the obstacle sensing transmission signal 64 transmitted from the transmitting unit 62. The obstacle sensing and transmission signal 64 transmitted from the transmission unit 62 is an optical signal by LED light, laser, infrared, or the like. For this reason, the transmission unit 62 is a light projecting unit, and the reception unit 63 is a light receiving unit. It has become. The receiving unit 63 that has received the obstacle sensing transmission signal 64 transmits an electrical signal indicating that an obstacle has been sensed to the MPU 53.

  When an unauthorized intruder or the like tries to pry open the shutter curtain 8 that is maintained in a fully closed state or substantially fully closed state by a lock mechanism (not shown), the unauthorized intruder or the like, for example, The shutter curtain 8 is pry open by inserting a tool such as a bar into the gap between the floor 7 (precisely, the lower surface of the seat plate 10). At this time, the lower surface of the seat plate 10 is not completely in contact with the floor 7, or there is a slight gap between the lower end portion of the seat plate 10 and the seat plate switch 61, although they are in contact with each other, or The seat plate switch 61 is in a state in which the floor 7 is not detected as an obstacle because the lower end portion of the seat plate 10 is pressing the seat plate switch 61 with a pressing force that does not lead to operation. A tool such as a bar inserted in the gap is detected as an obstacle, and an electric signal indicating that the obstacle has been detected is transmitted to the MPU 53 of the control unit 50. Therefore, the MPU 53 determines that the shutter curtain 8 that is maintained in the fully closed state or the substantially fully closed state has been forcibly opened.

  In addition, after the MPU 53 determines that the shutter curtain 8 has been forcibly opened, the opening / closing body forced opening operation detecting means 60 detects an obstacle present in the closing operation direction of the shutter curtain 8 that has been forcibly opened. Functions as an obstacle sensing means.

  After determining that the shutter curtain 8 has been forcibly opened, the MPU 53 performs various controls on the shutter curtain 8 that has been forcibly opened, as will be described later.

  As shown in FIG. 1, the position detection switch 70 serving as the opening / closing body position information detection means has a predetermined height position H or one of a pair of left and right guide rails 13 (the left side guide rail 13 in FIG. 1). It is provided in the vicinity. Specifically, the predetermined height position H, which is a predetermined position, is the seat plate 10 (accurate when the shutter curtain 8 is opened to the extent that an unauthorized intruder or the like can pass under the shutter curtain 8). Is the height position of the seat plate switch 61).

  This position detection switch 70 is a limit switch that is activated (on / off) by contact with the widthwise end of the seat plate 10 of the shutter curtain 8 during opening / closing operation (portion where the seat plate switch 61 is not provided). In the state where the shutter curtain 8 is fully closed or substantially fully closed, the shutter curtain 8 is off. The shutter curtain 8 that is maintained in the fully closed state or the substantially fully closed state is forcibly opened, and the height position of the seat plate 10 of the shutter curtain 8 becomes a height position on the open side with respect to the predetermined height position H. When turned on, it turns on. As a result, a signal indicating that the height position of the seat plate 10 of the shutter curtain 8 is higher than the predetermined height position H is transmitted to the MPU 53 of the control unit 50, and the MPU 53 receives the shutter curtain 8. Is determined to have been forcibly opened to a predetermined height position H or to a height position on the opening side of the predetermined height position H. The position detection switch 70 that has been turned on has the shutter curtain 8 that has been forcibly opened to a predetermined height position H or a position closer to the opening side than the predetermined height position H closed. When the height position of the eighth seat plate 10 reaches the predetermined height position H, the off state is established. As a result, the MPU 53 determines that the shutter curtain 8 has been closed to the predetermined height position H or a position near it.

  Non-contact type obstacle sensing means 80 for sensing an obstacle existing in the closing operation direction of the shutter curtain 8 that has been forcibly opened to a predetermined height position H or a height position on the opening side of the predetermined height position H. As shown in FIG. 1, an obstacle is provided at a height position on the open side of a predetermined height position H in one of the pair of left and right guide rails 13 (the left side guide rail 13 in FIG. 1). A height position corresponding to a height position at which the transmission unit 81 that transmits the sensing signal 83 and the transmission unit 81 in the other of the pair of left and right guide rails 13 (the right side guide rail 13 in FIG. 1) is provided. That is, a receiving unit 82 is provided for receiving an obstacle sensing signal 83 that is provided at the same or substantially the same height as the transmitting unit 81 and that is transmitted from the transmitting unit 81. ingThe transmission unit 81 continues to transmit the obstacle sensing signal 83 from when the position detection switch 70 that has been in the off state is turned on until it is turned off again. When there is no obstacle at the height position where the transmission unit 81 and the reception unit 82 are provided, the reception unit 82 continues to receive the obstacle detection signal 83 transmitted from the transmission unit 81.

  The obstacle detection signal 83 transmitted from the transmission unit 81 of the non-contact type obstacle detection unit 80 is the same as the obstacle detection transmission signal 64 transmitted from the transmission unit 62 of the opening / closing body forced opening operation detection unit 60. Furthermore, it is an optical signal by LED light, laser, infrared rays, etc. For this reason, the transmitting unit 81 is a light projecting unit, and the receiving unit 82 is a light receiving unit. Since the obstacle detection signal 83 transmitted from the transmission unit 81 is blocked by the presence of an obstacle such as an unauthorized intruder, the reception unit 82 does not receive the obstacle detection signal 83, so there is an obstacle. An electrical signal to this effect is transmitted from the receiving unit 82 to the MPU 53 via the lead wire 84. Thereby, the MPU 53 determines that there is an obstacle in the closing operation direction of the shutter curtain 8.

  The obstacle sensing transmission signal 64 transmitted and received by the opening / closing body forced opening operation detecting means 60 may be infrared rays, ultrasonic waves, or the like. Similarly, the signals transmitted and received by the non-contact type obstacle sensing means 80 may be infrared rays or ultrasonic waves.

  As shown in FIGS. 1 and 2, the opening / closing control device 30 for the opening / closing body according to the first embodiment, when the forcible opening operation of the shutter curtain 8 is detected by the opening / closing body forcible opening operation detecting means 60, An opening / closing body forced opening operation notifying means 90 is provided for notifying the forced opening operation of the shutter curtain 8 to the outside. The opening / closing body forced opening operation notifying means 90 includes an alarm device 91 and an alarm generation instruction circuit 54 which is incorporated in the control unit 50 and instructs the alarm device 91 to generate an alarm. Yes.

  Next, the flow of control executed by the MPU 53 of the control unit 50 of the opening / closing control device 30 of the opening / closing body will be described below. 3 and 4 show that the shutter curtain 8 that is closed by the operation of the opening / closing switch by the administrator of the shutter device 1 for opening and the like, is maintained in a fully closed state or a substantially fully closed state by a lock mechanism (not shown). It is a flowchart figure which shows the flow of the control which MPU53 performs when it is open | released.

  To close the shutter curtain 8, the close button 22 of the open / close switch 20 shown in FIG. Thereby, as shown in FIG. 2, a control signal for instructing the closing operation of the shutter curtain 8 is transmitted to the MPU 53.

  The MPU 53 to which the control signal is transmitted from the opening / closing switch 20 determines whether or not the control signal is a signal for closing the shutter curtain 8 (step S1), and the control signal causes the shutter curtain 8 to close. If not (step S1-NO), the MPU 53 executes other processing (step S2), for example, control for opening the shutter curtain 8 or control for stopping the opening / closing operation of the shutter curtain 8.

  On the other hand, when the control signal is a signal for closing the shutter curtain 8 (step S1-YES), the MPU 53 thereafter corrects the motor 42 of the switch 40 to close the shutter curtain 8. Control for instructing driving (open driving) is performed on the switch drive control circuit 41 of the switch 40 (step S3). Thereby, the brake 43 of the opening / closing machine 40 is released, the motor 42 is driven forward, and the winding shaft 11 is rotated forward. As a result, the shutter curtain 8 starts a closing operation that is fed from the take-up shaft 11.

  Next, the MPU 53 determines whether or not the shutter curtain 8 being closed has been fully closed or substantially fully closed, that is, whether or not the fully closed limit switch 45 of the switch 40 has been actuated (step S4). .

  In this step S4, when the MPU 53 determines that the fully closed limit switch 45 is not operated (step S4-NO), it is determined that the shutter curtain 8 is not fully closed or substantially fully closed, and the MPU 53 In order to continue the closing operation of the shutter curtain 8, the process returns to the process of Step S <b> 3 in which the control for instructing the forward drive of the motor 42 of the opening / closing machine 40 is executed on the opening / closing machine drive control circuit 41 of the opening / closing machine 40.

  On the other hand, if the MPU 53 determines that the fully closed limit switch 45 has been actuated (step S4-YES), it is determined that the shutter curtain 8 is in the fully closed state or substantially fully closed state, and the MPU 53 Control for stopping the positive drive of the motor 42 is executed for the switch drive control circuit 41 of the switch 40 (step S5). As a result, the positive drive of the motor 42 of the switch 40 is stopped and the brake 43 is returned. As a result, the closing operation of the shutter curtain 8 being fed out from the winding shaft 11 is stopped. Although not shown, the shutter curtain 8 is maintained in the fully closed state or the substantially fully closed state by the operation of a lock mechanism (not shown) automatically or manually by an administrator of the opening shutter device 1 or the like. .

  Thereafter, the MPU 53 performs control to constantly monitor whether or not the shutter curtain 8 in the fully closed state or the substantially fully closed state has been forcibly opened by an unauthorized intruder or the like (step S6). In this step S6, the MPU 53, as described above, the opening / closing body forced opening operation detecting means 60 also serving as the contact type obstacle sensing means (in other words, the contact type obstacle sensing means 60 also serving as the opening / closing body forced opening operation detection means). It is determined whether the seat plate switch 61 is activated. When the MPU 53 determines that the seat plate switch 61 is not operated (step S6-NO), the MPU 53 repeats the determination process of step S6.

  When an unauthorized intruder or the like inserts a tool such as a bar into the gap between the seat plate 10 of the shutter curtain 8 and the floor 7 and tries to open the shutter curtain 8, it becomes a sensing unit that senses contact with an obstacle. The pressure-sensitive seat plate switch 61 is activated (ON state), and an electrical signal indicating that an obstacle has been detected is transmitted to the MPU 53. Thereby, the MPU 53 determines that the shutter curtain 8 has been forcibly opened (step S6-YES). Thereafter, the MPU 53 determines the height position of the seat plate 10 of the shutter curtain 8 that has been forcibly opened (step S7).

  In this step S7, when the MPU 53 determines that the position detection switch 70 provided on one of the pair of left and right guide rails 13 (left side in FIG. 1) is not activated (NO in step S7), It can be determined that the shutter curtain 8 has not been forcibly opened to a predetermined height position H or a position in the vicinity thereof. That is, although the shutter curtain 8 has been forcibly opened, the gap formed between the seat plate 10 and the floor 7 of the shutter curtain 8 by the forced opening operation is such that unauthorized intruders can pass through. It can be determined that there is no space.

  For this reason, the MPU 53 thereafter executes control for instructing the forward drive of the motor 42 of the switch 40 to the switch drive control circuit 41 of the switch 40 in order to forcibly close the shutter curtain 8. (Step S8). The brake 43 of the opening / closing machine 40 is released, the motor 42 is driven forward, the winding shaft 11 is rotated forward, and the shutter curtain 8 starts closing operation.

  Thereafter, the MPU 53 determines whether or not the fully closed limit switch 45 has been operated, that is, whether or not the shutter curtain 8 that has been forcibly closed again has been fully closed or substantially fully closed (step S9). .

  In this step S9, when the MPU 53 determines that the fully closed limit switch 45 has been operated (step S9-YES), the MPU 53 returns to the above-described step S5 in order to stop the closing operation of the shutter curtain 8. .

  On the other hand, if the MPU 53 determines in step S9 that the fully closed limit switch 45 is not activated (step S9-NO), the MPU 53 thereafter forcibly opens and closes the opening / closing body in the same manner as in step S6 described above. It is determined whether or not the seat plate switch 61 of the motion detection means 60 is activated (step S10).

  In this step S10, when the MPU 53 determines that the seat plate switch 61 is not operated (step S10-NO), the process returns to the above-described step S8. Thereby, the closing operation of the shutter curtain 8 is continued.

  On the other hand, if the MPU 53 determines in step S10 that the seat plate switch 61 is operating (step S10—YES), it can be determined that the shutter curtain 8 during the closing operation is likely to be pry open again. Therefore, thereafter, the MPU 53 returns to step S7 described above to determine the height position of the seat plate 10 of the shutter curtain 8.

  Next, the control process after step S11 executed by the MPU 53 after the MPU 53 determines that the position detection switch 70 has been operated in the above-described step S7 (step S7-YES) will be described.

  If the MPU 53 determines in step S7 that the position detection switch 70 has been actuated (step S7-YES), the height position of the seat plate 10, which is the front end of the shutter curtain 8 that has been forcibly opened, is closed. Can be determined to be a predetermined height position H or a height position on the open side of the predetermined height position H. That is, it can be determined that the shutter curtain 8 has been forcibly opened to a height that allows an unauthorized intruder or the like to pass under the shutter curtain 8.

  Therefore, thereafter, the MPU 53 is below the shutter curtain 8 that has been forcibly opened to a predetermined height position H or a height position on the opening side of the predetermined height position H (in other words, the shutter curtain that has been forcibly opened). 8 is executed in consideration of a case where an unauthorized intruder or the like passes through a gap formed between the seat plate 10 and the floor 7.

  As shown in FIG. 4, the MPU 53 is first a non-contact type provided on the seat plate switch 61 of the opening / closing body forced opening operation detecting means 60 provided on the seat plate 10 of the shutter curtain 8 and the guide rail 13. The operating state of the obstacle sensing means 80 is determined (step S11).

  If the MPU 53 determines in this step S11 that the seat plate switch 61 and the non-contact type obstacle sensing means 80 are inoperative (no obstacle is sensed) (YES in step S11), the forced opening is performed. A gap is formed between the seat plate 10 of the operated shutter curtain 8 and the floor 7 so as to allow a space for unauthorized intruders to pass through. It can be determined that there is a high possibility that an unauthorized intruder or the like can pass through the bottom.

  For this reason, the MPU 53 is the control processing after step S8 described above, that is, until the shutter curtain 8 is in the fully closed state or the substantially fully closed state, in other words, the front end portion on the closed side of the shutter curtain 8. Control processing for forcibly closing the shutter curtain 8 is executed until the seat plate 10 reaches the fully closed position or the substantially fully closed position.

  On the other hand, in cases other than the above-described step S11-YES, that is, the MPU 53 determines that at least one of the seat plate switch 61 and the non-contact type obstacle detection means 80 is operating (detecting an obstacle). If so (step S11—NO), the MPU 53 next determines whether or not the non-contact type obstacle sensing means 80 is operating (whether the obstacle is sensed) (step S12).

  In this step S12, when the MPU 53 determines that the non-contact type obstacle sensing means 80 is operating, in other words, only the non-contact type obstacle sensing means 80 is operating, or the non-contact type obstacle sensing device. If it is determined that both the sensing means 80 and the seat plate switch 61 are operating (step S12—YES), it can be assumed that an unauthorized intruder or the like is in the following situation.

  The fact that only the non-contact type obstacle sensing means 80 is operating means that when there is an unauthorized intruder or the like under the shutter curtain 8, the upper end portion of the unauthorized intruder or the like (for example, If it is a human, the height position of the head, back, or buttocks in the state of being struck is a height position above the predetermined height position H (open side), and the seat of the shutter curtain 8 at this time The height position of the board 10 can be assumed to be a height position above (open side) the upper end of an unauthorized intruder or the like.

  On the other hand, the fact that both the non-contact type obstacle sensing means 80 and the seat plate switch 61 are operating means that this unauthorized intrusion occurs when there is an unauthorized intruder or the like under the shutter curtain 8. The height position of the upper end of the person or the like is a height position (open side) above the predetermined height position H, and the seat plate 10 of the shutter curtain 8 at this time is in contact with the upper end of the unauthorized intruder or the like. Can be assumed to be in contact.

  Therefore, if the MPU 53 determines that the non-contact obstacle sensing means 80 is operating, an unauthorized intruder or the like may be able to pass under the shutter curtain 8 that has been forcibly opened. Can be determined to be high.

  For this reason, the MPU 53 is the control processing after step S8 described above, that is, until the shutter curtain 8 is in the fully closed state or the substantially fully closed state, in other words, the front end portion on the closed side of the shutter curtain 8. Control processing for forcibly closing the shutter curtain 8 is executed until the seat plate 10 reaches the fully closed position or the substantially fully closed position.

  On the other hand, in cases other than step S12-YES, that is, when the MPU 53 determines that only the seat plate switch 61 is operating (step S12-NO), the shutter curtain 8 remains in the fully closed state or is substantially omitted. If the closing operation is forcibly performed until the fully closed state is reached, it can be determined that there is a high possibility of harm to an unauthorized intruder or the like.

  For this reason, the MPU 53 forcibly closes the shutter curtain 8 until the position detection switch 70 is actuated, that is, until the seat plate 10 of the shutter curtain 8 reaches the predetermined height position H or a position in the vicinity thereof. Execute.

  Note that the event that only the seat plate switch 61 is operating can also occur when the non-contact type obstacle sensing means 80 does not operate for some reason such as a failure. Performs a control process for forcibly closing the shutter curtain 8 until the position detection switch 70 is operated.

  In the next step S13, the MPU 53 determines whether the position detection switch 70 is in an operating state, that is, whether the height position of the seat plate 10 of the shutter curtain 8 has reached the predetermined height position H or a position in the vicinity thereof.

  In this step S13, when the MPU 53 determines that the position detection switch 70 is not operated (still in the ON state) (step S13-NO), the height position of the seat plate 10 of the shutter curtain 8 is a predetermined height. Since it can be determined that the position H or the position near the position H has not been reached, the MPU 53 controls the switch drive control circuit 41 of the switch 40 to instruct the forward drive of the switch 40 in order to close the shutter curtain 8. It performs with respect to (step S14). Thereafter, the MPU 53 executes the control processing after step S11 described above. This is because when the obstacle is no longer detected during the closing operation of the shutter curtain 8, the shutter curtain 8 is closed until it is fully closed or substantially fully closed.

  On the other hand, when the MPU 53 determines in step S13 that the position detection switch 70 has been operated (returned to the OFF state) (YES in step S13), the height position of the seat plate 10 of the shutter curtain 8 is a predetermined height. It can be determined that the position H or a position near the position H has been reached.

  For this reason, the MPU 53 performs control for stopping the forward drive of the motor 42 of the switch 40 on the switch drive control circuit 41 of the switch 40 in order to stop the closing operation of the shutter curtain 8 (step S15). ). As a result, the positive drive of the motor 42 of the switch 40 is stopped and the brake 43 is returned. As a result, the shutter curtain 8 stops the closing operation that is drawn out from the take-up shaft 11, and the shutter curtain 8 is stopped at the predetermined height position H, so that a situation in which an unauthorized intruder or the like is harmed is avoided. .

  After this step S15, the MPU 53 executes the control processing after step S11 described above. Then, when the obstacle is not detected while the shutter curtain 8 is stopped at the predetermined height position H, the control process after step S8 is performed, and the shutter curtain 8 is in the fully closed state or the substantially fully closed state. It will be closed until.

  Although not shown in FIG. 3, when the MPU 53 determines in step S6 that the seat plate switch 61 has been operated (step S6-YES), the MPU 53 causes the shutter curtain 8 to be forcibly opened. In order to notify the outside of the fact, the control for causing the alarm generation instruction circuit 54 of the control unit 50 to generate an alarm from the warning device 91 is executed between step S6 and step S7.

  In the first embodiment described above, the opening / closing control device 30 of the opening / closing body is the front end portion on the closing side of the shutter curtain 8 when the opening / closing body forced opening operation detecting means 60 detects the forced opening operation of the shutter curtain 8. A position detection switch 70 is provided as opening / closing body position information detection means for detecting position information of a certain seat plate 10.

  When the height position of the seat plate 10 detected by the position detection switch 70 is a predetermined height position H or a height position on the open side with respect to the predetermined height position H, that is, below the shutter curtain 8. When an unauthorized intruder or the like forcibly opens the shutter curtain 8 to such an extent that it can pass through, the control unit 50 forces the shutter curtain 8 to be fully closed or substantially fully closed. Thus, the opening operation is forcibly performed until the height position of the seat plate 10 reaches a predetermined height position H or a position near the predetermined height position H without performing the closing operation.

  Accordingly, it is possible to prevent a situation where an unauthorized intruder or the like who forcibly opens (squeezes open) the shutter curtain 8 is strongly pinched by the shutter curtain 8 without passing under the shutter curtain 8 that has been pry open. The

  Therefore, according to the first embodiment, when the shutter curtain 8 is forcibly opened, safer opening / closing control is performed for a person who has performed the forcible opening operation of the shutter curtain 8 compared to the conventional case. Thus, the safety of an unauthorized intruder or the like who has forcedly opened the shutter curtain 8 is ensured.

  Note that the “predetermined height” means that if an unauthorized intruder is assumed as a person who forcibly opens the shutter curtain 8, the unauthorized intruder cannot be removed from the shutter curtain 8 but strongly against the shutter curtain 8. It is preferable to set it to such an extent that it is not pinched. On the other hand, when the person who forcibly opens the shutter curtain 8 is assumed to be a person who is rescued from the space on the opposite side across the shutter curtain 8 or a person who is left in the space, It is preferable to set so that the human can pass under the shutter curtain 8. In any case, by setting the predetermined height to such a level, the safety for humans existing under the shutter curtain 8 is further improved.

  As specific values of the “predetermined height” in consideration of the above, for example, the minimum value may be about 2 cm to about 20 cm from the floor 7. The basis for this numerical range is the height of the head, back, or buttocks in the state where the dwarf is lying, or the height of the toes or fingertips (in the case of fingertips, this is a relatively large shutter. This is because the height determined in consideration of a relatively small shutter such as a window shutter is considered. On the other hand, the maximum value can be about 30 cm to about 80 cm from the floor 7. The grounds for this numerical range are due to consideration of the height of the head, back, or buttocks when an adult is sitting or leaning. The “floor 7” is a typical example of the contact member, and various members such as a “sash frame” can be considered as in the case of the window shutter.

  Further, in the first embodiment, when the shutter curtain 8 that has been forcibly opened is forcibly closed, the obstacle that senses an obstacle such as an unauthorized intruder present in the closing operation direction of the shutter curtain 8 is detected. An object sensing device is provided. The obstacle sensing device includes both the opening / closing body forced opening operation detecting means 60 which also serves as the contact type obstacle sensing means and the non-contact type obstacle sensing means 80, so that the shutter curtain 8 is closed. Obstacles present in the direction can be sensed more reliably, whereby the control unit 50 can perform more appropriate control processing on the shutter curtain 8 during the closing operation.

  Furthermore, in the first embodiment, when it is determined that the shutter curtain 8 has been forcibly opened, there is provided an opening / closing body forced opening operation notifying means 90 for notifying the outside that the shutter curtain 8 has been forcibly opened. .

  For this reason, according to the first embodiment, a person such as an administrator can quickly know that the shutter curtain 8 has been forcibly opened, so that the shutter curtain 8 can be forcibly opened. The shutter device 1 can be rushed and appropriate measures for the forced opening operation of the shutter curtain 8 can be quickly performed.

  FIG. 5 is an overall front view of the opening shutter device 101 provided with the opening / closing control device 130 for the opening / closing body according to the second embodiment, and is the same diagram as FIG. 1 described above. FIG. 6 is a configuration diagram of the opening / closing control device 130 for the opening / closing body, and is the same diagram as FIG. 3 described above. 7 and 8 are side sectional views of the contact type obstacle sensing means 160 provided in the opening / closing control device 130 for the opening / closing body according to the second embodiment (perpendicular to the width direction which is the left-right direction of the shutter curtain 8). FIG. Note that, in the embodiment described below, the same members, devices, and the like as those in the first embodiment are denoted by the same reference numerals, and the structure, operation, and the like are the same, and thus the description thereof is omitted.

  First, the opening / closing body opening / closing control device 130 according to the second embodiment will be briefly described with respect to differences from the opening / closing body opening / closing control device 30 according to the first embodiment.

  As shown in FIGS. 5 and 6, in the second embodiment, as in the first embodiment described above, the obstacle sensing means is provided as both a contact type obstacle sensing means and a non-contact type obstacle sensing means. However, only the contact type obstacle sensing means 160, which will be described in detail later, is provided.

  Further, in the second embodiment, the opening / closing body forced opening operation detecting means for detecting the forced opening operation of the shutter curtain 8 does not double as the contact type obstacle sensing means as in the first embodiment described above. A rotary encoder 181 that is attached to the rotation center shaft 11A of the winding shaft 11 and outputs two-phase pulses of A phase and B phase by the rotation of the winding shaft 11, and a two-phase pulse output from the rotary encoder 181 The opening / closing body forced opening operation detecting means 180 is configured to include a pulse phase discriminating circuit 55 which is a pulse phase discriminating means for discriminating the phases of the two.

  Next, the structure of the contact type obstacle sensing means 160 will be described. As shown in FIG. 7, the contact-type obstacle sensing means 160 is provided below the seat plate 110 of the shutter curtain 8. The lower portion of the seat plate 110 extends vertically downward from both ends of the horizontal portion 110A and the width direction of the horizontal portion 110A (in other words, the thickness direction of the shutter curtain 8 that is perpendicular to the width direction of the shutter curtain 8). The frame member has a vertically extending portion 110B that protrudes and a horizontally extending portion 110C that extends horizontally inward in the width direction from the tip of each vertical extending portion 110B.

  On the other hand, the contact-type obstacle sensing means 160 includes a moving member 161 that is movable in the opening / closing operation direction of the shutter curtain 1, a push button type micro switch 164 whose actuator is a push button 164A, and the micro switch 164. A transmission unit 165 that transmits an obstacle detection transmission signal 167 (see FIGS. 5 and 8) by operation, a reception unit 166 that receives the obstacle detection transmission signal 167 transmitted from the transmission unit 165, and a movement A plate spring 162 disposed between the member 161 and the micro switch 164 is included.

  As shown in FIG. 7, the moving member 161 has a horizontal portion 161A and a width direction of the horizontal portion 161A (in other words, a thickness direction of the shutter curtain 8 which is a direction perpendicular to the width direction of the shutter curtain 8). The frame member has a vertically extending portion 161B that extends vertically upward, and a horizontally extending portion 161C that extends horizontally outward from the tip of the vertically extending portion 161B in the width direction. In this moving member 161, the vertical extending portion 161 </ b> B and the horizontal extending portion 161 </ b> C are movable in the opening / closing operation direction of the shutter curtain 8 in the internal space 111 of the seat plate 110, and the horizontal extending portion 161 </ b> C is horizontal to the seat plate 110. It is attached to the seat plate 110 so that it can be mounted on the upper surface of the extension part 110C. The maximum moving range of the moving member 161 is L.

  The micro switch 164 is attached to the horizontal portion 110A of the seat plate 110, and the push button 164A as an actuator is provided so as to protrude downward from the micro switch 164, and is in the vertical direction (opening / closing of the shutter curtain 8). (Moving direction). The micro switch 164 is turned on (actuated) when the push button 164A is pushed (immersion state), and is turned off (not actuated) when the push button 164A is not pushed (projected state).

  The leaf spring 162 is inserted through a long hole 110 </ b> D formed in the horizontal portion 110 </ b> A of the seat plate 210. A lower end, which is one end of the leaf spring 162 in the opening / closing operation direction of the shutter curtain 8, is engaged with an engaging member 163 attached to the inner side of the moving member 161, and an upper end which is the other end. The portion is a wide portion 162A and can be brought into contact with the push button 164A of the micro switch 164.

  Therefore, the leaf spring 162 is a transmission member for transmitting the movement of the moving member 161 to the microswitch 164, and the microswitch 164 is a sensing unit for sensing the movement of the moving member 161.

  The transmission unit 165 has a control unit composed of an integrated circuit (IC), and is attached to a cover member 170 that covers the horizontal portion 110A of the seat plate 110, as shown in FIG. The transmitter 165 and the micro switch 164 are connected by a lead wire 168. When the micro switch 164 is turned on, the transmission unit 165 transmits an obstacle detection transmission signal 167 indicating that an obstacle has been detected to the reception unit 166. The receiving unit 166 that has received the obstacle detection transmission signal 167 transmits an electrical signal indicating that an obstacle has been detected to the MPU 53 of the control unit 150. The obstacle sensing and transmitting signal 167 is an optical signal by LED light, laser, infrared light, or the like. For this reason, the transmission unit 165 is a light projecting unit, and the receiving unit 166 is a light receiving unit.

  When the shutter curtain 8 is in a state other than the fully closed state or the substantially fully closed state, the moving member 161 normally has the horizontal extending portion 161C placed on the upper surface of the horizontal extending portion 110C of the seat plate 110 as shown in FIG. In this state, it is suspended from the seat plate 110. At this time, the leaf spring 162 is in a state of extending straight in the vertical direction which is the opening / closing movement direction of the shutter curtain 8.

  In addition, the seat plate 110 of the shutter curtain 8 in the second embodiment is, in other words, the seat plate 110 serving as the seat plate main body and the moving member constituting a part of the contact-type obstacle sensing means 160. 161 is a so-called long stroke seat plate. On the other hand, the contact type obstacle sensing means 160 provided on the seat plate 110 is a flexible contact type obstacle sensing means.

  Next, until the obstacle comes into contact with the moving member 161 of the contact type obstacle sensing means 160 and an electrical signal indicating that the obstacle is sensed is transmitted from the contact type obstacle sensing means 160 to the MPU 53 of the control unit 150. The operation will be described with reference to FIGS.

  FIG. 7 shows that when the shutter curtain 8 that has been forcibly opened is forcibly closed, the obstacle 100 that is present in the closing operation direction (arrow A direction) of the shutter curtain 8 is detected by the contact type obstacle detection. It is a figure which shows the state immediately after contact | abutting to the moving member 161 of the means 160. FIG.

  On the other hand, FIG. 8 is a diagram illustrating a state in which the shutter curtain 8 is further closed from the state of FIG. 7 and the movement amount of the shutter curtain 8 becomes L which is the maximum movement range of the moving member 161.

  As shown in FIG. 7, when the moving member 161 abuts against the obstacle 100, the moving member 161 moves to the open side relative to the microswitch 164 as the sensing unit (see FIG. 8). In other words, since the micro switch 164 that is the sensing unit moves to the closing side relative to the moving member 161), the wide portion 162 A that is the tip of the leaf spring 162 pushes up the push button 164 A of the micro switch 164. . Thereby, the micro switch 164 is turned on (operating state), and the obstacle sensing transmission signal 167 is transmitted from the transmission unit 165 to the reception unit 166 (see FIG. 1). The receiving unit 166 that has received the obstacle detection transmission signal 167 transmits an electrical signal indicating that the obstacle 100 has been detected to the MPU 53 of the control unit 150.

  As can be seen from FIGS. 7 and 8, in the second embodiment, after the horizontal portion 161A of the moving member 161 comes into contact with the obstacle 100 (the micro switch 164 enters the obstacle sensing state), The shutter curtain 8 can be further closed by a distance L which is the maximum movement range of the moving member 161.

  Therefore, in the second embodiment, when the horizontal portion 161A of the moving member 161 of the shutter curtain 8 during the closing operation reaches the predetermined height position H or a position near the predetermined position H (the micro switch). Even when 164 is in the obstacle sensing state, the shutter curtain 8 is further closed by the distance L which is the maximum movement range of the moving member 161 thereafter. That is, the shutter curtain 8 is further closed until the horizontally extending portion 110C of the seat plate 110 reaches the predetermined height position H or a position in the vicinity thereof.

  When the shutter curtain 8 is closing, if there is no obstacle 100 in the closing operation direction of the shutter curtain 8, first, after the horizontal portion 161A of the moving member 161 has landed on the floor 7, the shutter When the curtain 8 is further closed by the distance L which is the maximum movement range of the moving member 161, the horizontal extending portion 110C of the seat plate 110 is landed on the floor 7. At this time, as shown in FIG. 7, the horizontal portion 161 </ b> A of the moving member 161 is flush with or substantially flush with the horizontally extending portion 110 </ b> C of the seat plate 110. Therefore, when the shutter curtain 8 is in the fully closed state or substantially fully closed state, the micro switch 164 of the contact type obstacle sensing means 160 is operated in the same manner as in the state shown in FIG. The sensing means 160 senses the floor 7 as an obstacle. However, when the shutter curtain 8 is in the fully closed state or the substantially fully closed state, the MPU 53 of the control unit 150 outputs an electrical signal indicating that the obstacle transmitted from the receiving unit 166 of the contact type obstacle sensing means 160 is detected. It is excluded from the judgment of obstacle detection.

  9 and 10 are closed by an operation of the opening / closing switch 20 by an administrator or the like of the opening shutter device 101 provided with the opening / closing control device 130 for the opening / closing body according to the second embodiment, and all the operations are performed by a lock mechanism (not shown). FIG. 5 is a flowchart illustrating a control flow executed by the MPU 53 of the control unit 150 when the shutter curtain 8 in the closed state or the substantially fully closed state is forcibly opened; It is a figure similar to a figure.

  Hereinafter, only the control processing in which the flowcharts of FIGS. 9 and 10 are different from the flowcharts of FIGS. 3 and 4 will be described.

  As described above, in the second embodiment, as shown in FIGS. 1 and 2, the opening / closing body forced opening operation detecting means for detecting the forced opening operation of the shutter curtain 8 is the rotation center shaft 11 </ b> A of the winding shaft 11. A rotary encoder 181 that outputs A-phase and B-phase pulses by rotation of the winding shaft 11, and a pulse phase discrimination means that discriminates the phases of the two-phase pulses output from the rotary encoder 181. The opening / closing body forced opening operation detecting means 180 is configured to include the pulse phase discrimination circuit 55. Since the phase of the A-phase and B-phase two-phase pulses output from the rotary encoder 181 is discriminated by the pulse phase discrimination circuit 55, the rotation direction of the winding shaft 11 can be detected thereby.

  Therefore, in step S6 and step S10 in which the MPU 53 determines the forced opening operation of the shutter curtain 8 in the flowchart of FIG. 3 described above, the MPU 53 in FIG. 9 of the second embodiment rotates the winding shaft 11 in the reverse direction. Whether the shutter curtain 8 is forcibly opened based on the result data obtained by discriminating the phase of the two-phase pulse output from the rotary encoder 181 by the pulse phase discriminating circuit 55. It is replaced with ´.

  Further, in the flowchart of FIG. 4 described above, the shutter curtain 8 that has been forcibly opened to a height position on the opening side with respect to the predetermined height position H shown in FIG. Step S11 and step S12 for determining the presence of an obstacle when the closing operation is performed until the position is replaced with one step S11 ′ in the flowchart of FIG. In the first embodiment described above, the obstacle sensing means includes the opening / closing body forced opening operation detection means 60 that also serves as the contact type obstacle sensing means and the non-contact type obstacle sensing means 80. This is because in the second embodiment, the obstacle sensing means is only the contact type obstacle sensing means 160.

  In the second embodiment, the MPU 53 of the control unit 150 is configured to forcibly close the shutter curtain 8 that has been forcibly opened to a predetermined height position H or a height position closer to the opening side than the predetermined height position H. In order to determine whether or not the obstacle 100 exists in the closing operation direction of the shutter curtain 8, it is determined whether or not the micro switch 164 of the contact-type obstacle sensing means 160 has been activated. (Step S11 ′).

  As described above, in the second embodiment, when the horizontal portion 161A of the moving member 161 of the shutter curtain 8 during the closing operation reaches the predetermined height position H or a position near the predetermined height position H, it comes into contact with the obstacle 100. Even in the case where the micro switch 164 enters the obstacle sensing state, the shutter curtain 8 can be further closed by a distance L that is the maximum movement range of the moving member 161 thereafter. That is, the shutter curtain 8 can be further closed until the horizontally extending portion 110C of the seat plate 110 reaches the predetermined height position H or a position near it.

  Therefore, in the second embodiment, in step S11 ′ shown in FIG. 10, the MPU 53 is forcibly opened to a predetermined height position H or a height position closer to the opening side than the predetermined height position H. However, when it is determined that the microswitch 164 of the contact-type obstacle sensing means 160 is in operation until it is forcibly closed to a predetermined height position H or a position near the predetermined height position H (step S11′−). YES) until the horizontal extension 110C of the seat plate 110 of the shutter curtain 8 reaches the predetermined height position H or a position near the predetermined position H, that is, until the position detection switch 70 is operated (step S13-YES). In order to cause the curtain 8 to close, the MPU 53 thereafter executes a control process after step S13.

  In step S11 ′, when the MPU 53 determines that the micro switch 164 of the contact type obstacle sensing means 160 does not operate (step S11′—NO), the MPU 53 sets the shutter curtain 8 to the fully closed position or its position. In order to perform the closing operation to the vicinity position, the control processing after step S8 shown in FIG. 9 is executed.

  Also according to the second embodiment described above, when the shutter curtain 8 is forcibly opened, the opening / closing control can be performed in consideration of safety for a person or the like who has performed the forcible opening operation of the shutter curtain 8. .

  FIG. 11 is an overall front view of the opening shutter device 201 provided with the opening / closing control device 230 for the opening / closing body according to the third embodiment, and is the same diagram as FIG. 1 described above. FIG. 12 is an overall configuration diagram of the opening / closing control device 230 for the opening / closing body, and is the same diagram as FIG. 2 described above.

  First, the difference between the opening / closing control device 230 according to the third embodiment and the opening / closing control device 30 according to the first embodiment will be described.

  As shown in FIGS. 11 and 12, in this third embodiment, both the contact type obstacle sensing means 260 and the non-contact type obstacle sensing means 280 are detected as in the first embodiment. Among them, the contact-type obstacle sensing means 260 has the same type, structure, and the like as the open / close body forced opening operation detection means 60 that also serves as the contact-type obstacle detection means in the first embodiment described above. Yes, a seat board switch 261, a transmission unit 262 for transmitting an obstacle sensing transmission signal 264 (having a control unit comprising an integrated circuit (IC)), and for receiving this obstacle sensing transmission signal 264 , And also serves as an opening / closing body forced opening operation detecting means for detecting the forced opening operation of the shutter curtain 8.

  Next, the structure of the non-contact type obstacle sensing means 280 will be described. FIG. 13 is an enlarged view of the left end which is one end of the seat plate 210 when the shutter curtain 8 is closing. As shown in FIG. 13, two horizontal extending members 212 and 213 extending in the width direction that is the left and right direction of the shutter curtain 8, that is, in the horizontal direction, are provided at the left end portion of the seat plate 210. . These horizontal extending members 212 and 213 are provided at the left end portion of the seat plate 210 so as to be separated from each other in the opening / closing operation direction of the shutter curtain 8.

  A through hole 212A is provided in the horizontal extending member 212 disposed on the closed side (downward) of the shutter curtain 8 with respect to the horizontal extending member 213. The through hole 212A has a columnar shape, a prismatic shape, or the like. The rod-shaped member 214 is inserted. An upper end portion of the bar-like member 214 (the opening side of the shutter curtain 8) is a wide portion 214A, and the wide portion 214A can be placed on the upper surface of the horizontal extending member 212.

  A cylindrical coil spring 215 is provided between the horizontal extending member 213 and the wide portion 214A of the rod-like member 214, and one end of the cylindrical coil spring 215 is a disc shape attached to the upper surface of the wide portion 214A. The other end of the spring receiving member 216 is attached to a horizontal extending member 213 and is connected to a spring receiving member 217 having the same shape and size as the spring receiving member 216. For this reason, the rod-shaped member 214 is movable in the opening / closing operation direction of the shutter curtain 8 and is biased in the closing operation direction of the shutter curtain 8 by the spring force of the cylindrical coil spring 215.

  FIG. 14 is an enlarged view of the right end which is the other end of the seat plate 210 when the shutter curtain 8 is closing. As shown in FIG. 14, at the right end of the seat plate 210, the same as the horizontal extending members 212 and 213, the rod-like member 214, the cylindrical coil spring 215, and the spring receiving members 216 and 217 provided at the left end. Are provided symmetrically.

  As shown in FIG. 13, a non-contact type obstacle sensing means 280 is formed at the lower end portion of the rod-like member 214 at the left end portion of the seat plate 210 and is present in the closing operation direction of the shutter curtain 8. A first transmission unit 281 for transmitting an obstacle detection signal 286 for detecting an object is provided. On the other hand, as shown in FIG. 14, the lower end portion of the rod-like member 214 at the right end portion of the seat plate 210 constitutes a non-contact type obstacle sensing means 280, which is transmitted from the first transmission unit 281. The first receiving unit 282 for receiving the obstacle sensing signal 286 is provided. As shown in FIG. 11, the first transmitting unit 281 and the first receiving unit 282 are arranged to face each other. ing. Note that the obstacle detection signal 286 transmitted from the first transmission unit 281 is an optical signal such as an LED beam, a laser, or an infrared ray, as in the first embodiment described above. For this reason, the first transmission unit 281 is used. Is a light projecting unit, and the first receiving unit 282 is a light receiving unit.

  Similarly to the first embodiment described above, the non-contact type obstacle sensing means 280 according to the third embodiment also has the obstacle sensing signal 286 transmitted from the first transmission unit 281 blocked by the obstacle. By detecting obstacles.

  As shown in FIG. 11, an obstacle determination unit 283 having a control unit made of an integrated circuit (IC) is provided inside the seat plate 210. The obstacle determination unit 283 and the first reception unit 282 is connected with a lead wire (not shown). The obstacle determination unit 283 monitors the reception state of the obstacle detection signal 286 in the first reception unit 282, and if the first reception unit 282 has not received the obstacle detection signal 286 due to the presence of an obstacle. When it is determined, an electrical signal indicating that an obstacle has been detected is transmitted to the second transmitter 284 that is connected by a lead wire (not shown) and provided at the end of the seat plate 210 on the closed side. Thereafter, the second transmission unit 284 transmits an obstacle detection transmission signal 287 which is an optical signal such as an LED beam, a laser, or an infrared ray to the second reception unit 285 provided on the ceiling member 5. Then, the second receiving unit 285 that has received the obstacle detection transmission signal 287 transmits an electrical signal indicating that the obstacle has been detected to the MPU 53 of the control unit 250 via a lead wire (not shown).

  As described above, as shown in FIG. 11, the non-contact type obstacle sensing means 280 transmits the obstacle sensing signal 286 and the first sending unit 281 for sending the obstacle sensing signal 286. A first reception unit 282 for receiving the obstacle detection signal, and an obstacle determination unit 283 that monitors and determines whether the first reception unit 282 receives the obstacle detection signal 286. Then, an electric signal indicating that an obstacle is detected is transmitted from the obstacle determination unit 283, and a second transmission unit 284 for transmitting an obstacle detection transmission signal 287 is transmitted from the second transmission unit 284. And a second receiving unit 285 for receiving the obstacle sensing transmission signal 287.

  As can be seen from the above, in this third embodiment, the non-contact type obstacle sensing means 280 is provided closer to the shutter curtain 8 than the contact type obstacle sensing means 260.

  FIG. 15 is an enlarged view of the right end portion of the seat plate 210 when the shutter curtain 8 is in a fully closed state or a substantially fully closed state. As shown in FIG. 15, when the shutter curtain 8 is in the fully closed state or substantially fully closed state, the rod-like member 214 at the right end of the seat plate 210 moves backward in the opening operation direction of the shutter curtain 8, and this rod-like member. The front end surface of 214 on the closed side (lower side) is flush with or substantially flush with the front end surface of the seat plate switch 261 provided at the front end of the seat plate 210 on the closed side. On the other hand, the rod-like member 214 at the left end portion of the seat plate 210 is not shown, but is in the same state as the rod-like member 214 at the right end portion. As shown in FIG. 15, at this time, a spring force is accumulated in the cylindrical coil spring 215.

  In the state shown in FIG. 15, when the shutter curtain 8 starts the opening operation, the rod-like member 214 whose tip surface is flush with or substantially flush with the tip surface of the seat plate switch 261 is attached to the cylindrical coil spring 215. The accumulated spring force moves forward in the closing operation direction of the shutter curtain 8 and returns to the state shown in FIGS.

  FIGS. 16 and 17 show a closing operation by an operation of the opening / closing switch 20 by an administrator of the opening shutter device 201 provided with the opening / closing control device 230 for the opening / closing body according to the third embodiment. FIG. 5 is a flowchart illustrating a control flow executed by the MPU 53 of the control unit 250 when the shutter curtain 8 that is maintained in the closed state or the substantially fully closed state is forcibly opened; It is a figure similar to a flowchart figure.

  Only the control processing in which the flowcharts of FIGS. 16 and 17 are different from the flowcharts of FIGS. 3 and 4 will be described below.

  As described above, in the third embodiment, as in the first embodiment described above, the contact-type obstacle sensing unit 260 also serves as an opening / closing body forced opening operation detecting unit that detects the forced opening operation of the shutter curtain 8. It has become. For this reason, in the flowchart of FIG. 3 described above, the MPU 53 determines whether the shutter curtain 8 is forcibly opened in steps S6 and S10. In FIG. 16, the MPU 53 determines whether the seat plate switch 261 is activated. Thus, step S6 ″ and step S10 ″ for determining the forced opening operation of the shutter curtain 8 are replaced.

  Further, in the flowchart of FIG. 4 described above, the shutter curtain 8 that has been forcibly opened to a height position on the opening side with respect to the predetermined height position H shown in FIG. Step S11 and step S12 for determining the presence of an obstacle when the closing operation is performed until the position is replaced with one step S11 ″ in the flowchart of FIG.

As shown in FIG. 17, in step S <b> 11 ″ in the third embodiment, after the shutter curtain 8 is forcibly opened to a height position on the opening side with respect to the predetermined height position H shown in FIG. 11, non-contact is performed. If the type obstacle sensing means 280 and the seat plate switch 261 is inoperative together (step S11''- YES) the, MPU 53 is opened and closed machine control to closing operation of the shutter curtain 8 to the fully closed position or its vicinity 40 is executed. This is a determination process similar to step S11 in the first embodiment described above. On the other hand, in the case of step S11 ″ -NO , that is, when at least one of the non-contact type obstacle sensing means 280 and the seat plate switch 261 is activated, the MPU 53 is the same as in the first embodiment. The switch 40 is controlled to close the shutter curtain 8 to a predetermined height position H or a position in the vicinity thereof.

  As described above, in the third embodiment, the non-contact type obstacle sensing unit 280 is provided closer to the shutter curtain 8 than the seat plate switch 261 that constitutes the contact type obstacle sensing unit 260. For this reason, in the third embodiment, when an obstacle (such as an unauthorized intruder) exists under the shutter curtain 8 that has been forcibly opened, the non-contact type obstacle sensing means 280 does not function due to a failure or the like. Except in some cases, first, the non-contact type obstacle sensing means 280 senses an obstacle, and then the shutter curtain 8 continues the closing operation so that the seat plate switch of the contact type obstacle sensing means 160 is used. 61 is operated by contacting an obstacle. Therefore, in the third embodiment, when the non-contact type obstacle sensing means 280 is activated, the shutter curtain 8 is closed to a predetermined height position H or a position near the predetermined height position H. In other words, the shutter curtain 8 stops at the predetermined height position H.

  In the first embodiment described above, even when the non-contact type obstacle sensing means 80 is activated, the MPU 53 performs control for closing the shutter curtain 8 to the fully closed position or a position near it to the switch 40. (See step S12-YES in FIG. 4). On the other hand, in the third embodiment, when the non-contact type obstacle sensing means 80 is activated, the MPU 53 stops the shutter curtain 8 at a predetermined height position H.

  For this reason, according to this 3rd Embodiment, compared with the above-mentioned 1st Embodiment, the safety | security with respect to the person etc. who performed the forced opening operation | movement of the shutter curtain 8 improves more. That is, it is further prevented that a person or the like who has forcibly opened the shutter curtain 8 is strongly pinched by the shutter curtain 8.

Note that, in step S11'', MPU 53 is, in the case where the non-contact type obstacle sensing means 280 and the seat plate switch 261 determines not to operate (step S11''- YES), MPU53 is the shutter curtain 8 total In order to perform the closing operation to the closed position or the vicinity thereof, the control processing after step S8 shown in FIG. 16 is executed.

  It should be noted that a step of determining whether or not the non-contact type obstacle sensing means 280 is activated is added between step S11 ″ and step S13 in FIG. 17, so that the MPU 53 and the non-contact type obstacle sensing means 280 In order to notify the outside that the shutter curtain 8 that has been forcibly opened may stop at the predetermined height position H when it is determined that it has been activated, the MPU 53 is configured to generate an alarm generation instruction circuit of the control unit 50. 54 may be controlled to generate an alarm or synthesized sound from the alarm device 91. The control for generating an alarm or synthesized sound from the alarm device 91 may be continued while the shutter curtain 8 is stopped at the predetermined height position H. This is because the fact that the shutter curtain 8 continues to stop at a predetermined height position is not preferable in consideration of crime prevention.

  Also in the first and second embodiments described above, while the shutter curtain 8 is stopped at the predetermined height position H, the MPU 53 issues an alarm from the alarm device 91 to the alarm generation instruction circuit 54 of the control unit 50. Or you may make it perform control which generates a synthetic sound etc.

  In the above-described second embodiment, in addition to the micro switch 164, an obstacle detection switch that operates when the moving member 161 moves by a distance L or approximately L (see FIGS. 7 and 8) may be provided. . By providing such a switch, it is possible to perform control for forcibly closing the shutter curtain 8 as in the third embodiment. That is, in the above-described second embodiment, it is possible to perform opening / closing control in which the micro switch 164 functions in the same manner as the non-contact type obstacle sensing unit, and the newly provided switch functions as the contact type obstacle sensing unit. Become. If the newly provided switch is not normally in the obstacle sensing state in the fully closed state or the substantially fully closed state, this switch may be used as the opening / closing body forced opening operation detecting means.

  In the first to third embodiments described above, the control units 50, 150, and 250 are controlled by software, but are controlled by hardware such as a logic circuit. May be.

It is the whole front view of the shutter device for openings provided with the opening-and-closing control device of the opening-and-closing body concerning a 1st embodiment of the present invention. It is a block diagram of the opening / closing control apparatus of the opening / closing body which concerns on 1st Embodiment. It is a flowchart figure which shows the flow of the control which the control part of the opening / closing control apparatus of the opening / closing body which concerns on 1st Embodiment performs after the closing operation | movement of a shutter curtain is instruct | indicated. FIG. 4 is a flowchart showing a continuation of FIG. 3. It is the whole front view of the shutter device for opening parts provided with the opening-and-closing control device of the opening-and-closing body concerning a 2nd embodiment of the present invention. It is a block diagram of the opening / closing control apparatus of the opening / closing body which concerns on 2nd Embodiment. It is a sectional side view of the contact-type obstacle sensing means of the opening / closing control device for an opening / closing body according to the second embodiment, and shows a state before the sensing unit enters the obstacle sensing state. It is a figure which shows the state from which the detection part is in an obstruction detection state from the state of FIG. It is a flowchart figure which shows the flow of the control which the control part of the opening / closing control apparatus of the opening / closing body which concerns on 2nd Embodiment performs after the closing operation | movement of a shutter curtain is instruct | indicated. FIG. 10 is a flowchart showing a continuation of FIG. 9. It is the whole front view of the shutter device for opening parts provided with the opening-and-closing control device of the opening-and-closing body concerning a 3rd embodiment of the present invention. It is a block diagram of the opening / closing control apparatus of the opening / closing body which concerns on 3rd Embodiment. It is an enlarged view of the left end part of the seat board of a shutter curtain, and is a figure which shows a part of non-contact-type obstruction detection means of the opening / closing control apparatus of the opening / closing body which concerns on 3rd Embodiment. It is an enlarged view of the right end part of the seat board of a shutter curtain, and is a figure similar to FIG. It is an enlarged view of the right end of the seat plate of the shutter curtain when the shutter curtain is in a fully closed state or substantially fully closed state. It is a flowchart figure which shows the flow of the control which the control part of the opening / closing control apparatus of the opening / closing body which concerns on 3rd Embodiment performs after the closing operation | movement of a shutter curtain is instruct | indicated. FIG. 17 is a flowchart showing a continuation of FIG. 16.

Explanation of symbols

8 Shutter Curtain 13 as Opening / Closing Body Guide Rails 10, 110, 210 as Guide Members of Opening / Closing Body Seat Plates 30, 130, 230 as Closing Ends of Opening / Closing Body Opening / Closing Control Device 40 Opening / Closing Machine 50, 150, 250 Control units 60, 260 Opening / closing body forced opening operation detecting means 61, 261 which also serves as a contact type obstacle sensing means Seat plate switch 70 which is a sensing part of the contact type obstacle sensing means Position which is an opening / closing body position information detecting means Detection switches 80, 280 Non-contact type obstacle sensing means 81 Non-contact type obstacle sensing means transmission part 82 Non-contact type obstacle sensing means reception part 83, 286 Non-contact type obstacle sensing means obstacle sensing signal 90 Opening / Closing Body Forced Opening Informing Unit 100 Obstacle 160 Contact Type Obstacle Sensing Unit 161 Moving Member 164 of Contact Type Obstacle Sensing Unit Contact Type Obstacle Sensing Unit The height position a receiving unit is a first receiver H predetermined position of the first transmission section 282 contactless obstacle sensing means is a transmission unit of the micro-switch 281 non-contact type obstacle sensing means is a sensing unit

Claims (8)

An opening / closing device that at least closes the opening / closing body, a control unit that executes control for closing the opening / closing body to the opening / closing device, and a fully-closed state or a substantially fully-closed state of the opening / closing body. Open / close body forced opening operation detecting means for detecting forced opening operation, and when the opening / closing body forced opening operation detection means detects the opening / closing body forced opening operation, the control unit In the opening / closing control device for the opening / closing body that executes control for closing the body with respect to the opening / closing device,
Opening / closing body position information detecting means for detecting position information of a closing end of the opening / closing body when the opening / closing body forced opening operation detecting means is detected , and closing of the opening / closing body An obstacle sensing means for sensing an obstacle present in a direction having a component of the movement direction ,
When the control unit determines, based on the position information detected by the opening / closing body position information detecting means, that the position of the tip of the opening / closing body that has been forcibly opened is closer to the closing side than the predetermined position. The control unit is configured to perform control on the switch to close the open / close body until the tip of the open / close body reaches a fully closed position or a position near the fully closed position.
Based on the position information detected by the opening / closing body position information detection means, the control unit opens a position at which the tip of the opening / closing body that has been forcibly opened is different from a fully closed position or more than the predetermined position. When it is determined that the position is a side position, the control unit performs control for closing the opening / closing body with respect to the opening / closing device, and the tip of the opening / closing body during the closing operation is the predetermined position or If the obstacle sensing means does not sense the obstacle until it reaches a nearby position, the control unit can open the opening / closing body until the tip of the opening / closing body reaches the fully closed position or a position near the closed position. Control for closing the switch is performed on the switch, and the obstacle sensing means senses the obstacle until the tip of the opening / closing body during the closing operation reaches the predetermined position or a position in the vicinity thereof. In case The control unit executes control for closing the opening / closing body until the tip of the opening / closing body reaches the predetermined position or a position near the predetermined position, and then the opening / closing body When the obstacle sensing means stops sensing the obstacle while stopping at a predetermined position or a position near the predetermined position, the control unit causes the tip of the opening / closing body to be in a fully closed position or a position near it. An opening / closing control apparatus for an opening / closing body, wherein the opening / closing body is controlled to close until the opening / closing body is reached . 2. The opening / closing control device for an opening / closing body according to claim 1 , wherein the obstacle sensing means is contact type obstacle sensing means capable of sensing the obstacle by contact with the obstacle, and contact with the obstacle. Non-contact type obstacle sensing means capable of sensing the obstacle without depending on the obstacle type, and the contact type obstacle sensing means is provided at the tip of the opening / closing body, and the obstacle The non-contact type obstacle sensing means is disposed on both sides of the opening / closing body in the width direction and guides the opening / closing body in the opening / closing operation direction. Provided on one of the pair of guide members, and provided on the other of the pair of guide members, a transmission unit for transmitting an obstacle detection signal at a position closer to the open side than the predetermined position, Reception for receiving the obstacle sensing signal The obstacle sensing signal transmitted from the transmitter is sensed by the obstacle being blocked by the obstacle, and the tip of the opening / closing body is at the predetermined position or When the non-contact type obstacle sensing means senses the obstacle before reaching the near position, the control unit opens the opening / closing body until the tip of the opening / closing body reaches the fully closed position or a position in the vicinity thereof. An opening / closing control device for an opening / closing body, wherein the opening / closing body is controlled to perform a closing operation. 2. The opening / closing control device for an opening / closing body according to claim 1 , wherein the obstacle sensing means is a contact obstacle sensing means capable of sensing the obstacle by contact with the obstacle, and the contact obstacle. The sensing means includes a sensing part that is provided at the tip of the opening / closing body and senses the obstacle by contacting the obstacle, and also serves as the opening / closing body forced opening operation detecting means. An opening / closing control device for an opening / closing body. 2. The opening / closing control device for an opening / closing body according to claim 1 , wherein the obstacle sensing means is a contact obstacle sensing means capable of sensing the obstacle by contact with the obstacle, and the contact obstacle. The sensing means includes a moving member that is disposed at the tip of the opening / closing body and is movable in the opening / closing operation direction of the opening / closing body, and a sensing unit for sensing the movement of the moving member, An opening / closing control device for an opening / closing body, wherein the obstacle is detected when the moving member moves to the open side relative to the sensing unit by contact with the obstacle. The opening / closing control device for an opening / closing body according to any one of claims 1 to 4, wherein the distal end portion of the opening / closing body includes a flexible portion that can be expanded and contracted in an opening / closing operation direction of the opening / closing body. Even when the position has reached the position or the vicinity thereof, the control unit closes the opening / closing body until the tip reaches the predetermined position or a position in the vicinity thereof, taking into account the reduction of the flexible part. An opening / closing control device for an opening / closing body, wherein control for continuing the operation is performed on the opening / closing device. 6. The opening / closing control device for an opening / closing body according to claim 1 , wherein when the opening / closing body forcibly opening operation is detected by the opening / closing body forcing / opening operation detecting means, the opening / closing body is forcibly opened. An opening / closing body opening / closing control device comprising an opening / closing body forced opening operation notifying means for notifying the outside. The opening / closing control device for an opening / closing body according to any one of claims 1 to 6 , wherein the predetermined position is located between the distal end portion on the closing side of the opening / closing body and a closing surface facing the distal end portion. Position of the front end portion of the closing side of the opening / closing body in the opening / closing operation direction when the opening / closing body is forcibly opened until a gap that does not cause harm to the human being is formed switching controller for opening and closing member, characterized in that it. The opening / closing control device for an opening / closing body according to any one of claims 1 to 7 , wherein the opening / closing body is a shutter curtain formed by connecting metal slats continuously, and the shutter curtain has a vertical component. An opening / closing control device for an opening / closing body, characterized in that the opening / closing operation is possible in a direction having an opening, the upper direction is an opening operation direction, and the lower direction is a closing operation direction .

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