JP2017002505A - Opening/closing body automatic closing device and opening/closing body automatic closing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continue automatic closing while avoiding return processing on a return button even when the return button is operated on condition that disaster prevention means is in a fire sensing state and a fire-proof shutter is to be automatically closed.SOLUTION: In the case where a return button 88 is operated with a fire-proof shutter curtain 5 in an automatically closed state, a state of a disaster-prevention board 12 is confirmed and return processing for returning the fire-proof shutter curtain 5 into an opening/closing operable state in response to an operation of the return button 88 is performed on receiving an initial state signal indicating that the disaster-prevention board 12 is in an initial state in which no fire is sensed or the disaster-prevention board has been reset after sensing a fire. When a sense state signal is received which indicates that the disaster-prevention board 12 is in a fire sensing state, the operation of the return button 88 is invalidated.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an opening / closing body automatic closing device and an opening / closing body automatic closing method for automatically closing a passage or a hall space inside a building using an opening / closing body such as a sheet-like, slat-like or panel-like curtain.

  In general, in the construction of large buildings, etc., in passages and hall spaces inside structures, in the form of sheets or shutters that automatically close as soon as a fire occurs to prevent the spread of fire and the spread of smoke in the event of a fire Using a shielding member such as a fire curtain, there is provided a fire shutter device that operates to form a space three-dimensionally enclosed with pillars, walls, floors, etc., that is, a fire prevention section and a smoke prevention function. Some of these shutter devices are extended to partition an opening for fire prevention, smoke prevention, waterproofing, windproofing, crime prevention, etc. when a disaster other than a fire occurs or when a store is closed.

  FIG. 1 is a diagram showing a schematic configuration of a conventional fire shutter device that forms such a fire protection section. Opening / closing body devices for disaster prevention such as the fire prevention shutter device 10 open and close in response to the input of the disaster prevention signal BS (for example, DC 24V signal) output from the disaster prevention panel 12 by sensing smoke and heat generated in the event of a fire. It has an automatic closing device 4 for releasing the brake 2 connected to the machine 1. The voltage value of the disaster prevention signal BS may not be 24V, and the voltage value is determined as appropriate. The automatic closing device 4 is operated by power from a commercial power supply 9 supplied via the interlocking relay 3 or a standby power supply (storage battery) built in the interlocking relay 3.

  Even if there is no supply of commercial power to the fire prevention shutter device 10 due to a standby power source built in the interlock repeater 3, the brake 2 can be released based on the inputted disaster prevention signal BS, and the fire prevention structure is in a winding state. The fire shutter shutter 5 can be lowered by its own weight to automatically close the opening. In an emergency, the fire shutter curtain 5 can be lowered by its own weight by operating the electric manual closing device 8 (emergency shutter closing button).

  FIG. 2 is a diagram showing a schematic configuration of the interlock repeater 3 of FIG. As shown in FIG. 2, the interlocking repeater 3 includes a power supply circuit 31, a charging device 32, a standby power supply (storage battery) 33, a power supply switching device 34, and a control circuit 35. The power supply circuit 31 converts the commercial power supply 9 into a DC 24V signal, supplies a DC voltage to the control circuit 35 via the power supply switching device 34 and supplies power to the charging device 32. The charging device 32 charges the standby power supply (storage battery) 33 using the power from the power supply circuit 31. The standby power source (storage battery) 33 is composed of a lithium ion rechargeable battery or other battery (including a rechargeable type power source that can be used up like a dry battery) and the like, and a DC voltage control circuit via a power source switching device 34 35. The power supply switching device 34 selectively switches one of the power supply circuit 31 and the standby power supply 33 and supplies it to the control circuit 35.

  Normally, since power is supplied from the commercial power supply 9, the DC voltage from the power supply circuit 31 is supplied to the control circuit 35. However, in the event of an emergency such as a fire, power supply from the commercial power supply 9 is not possible. When the operation is stopped, the operation is performed so as to supply the DC voltage from the standby power supply 33 to the control circuit 35. In FIGS. 1 and 2, the connection relationship of the commercial power source other than the interlocking relay 3 is not shown.

  In this way, the standby power supply 33 built in the interlock repeater 3 operates based on the disaster prevention signal BS input from the disaster prevention panel 12 to the control circuit 35 even when no commercial power is supplied to the fire prevention shutter device 10 in the event of a fire. By outputting a signal (DC 24V signal), operating the automatic closing device 4 and releasing the brake 2, the fire-proof shutter curtain 5 of the fire-proof structure in the winding state is lowered by its own weight, and the opening is automatically closed. Can be done. In an emergency, by operating the electric manual closing device 8 (emergency shutter closing button), an operation signal (DC 24V signal) is also output from the control circuit 35, and the automatic closing device 4 is operated to operate the brake 2 And the fire shutter curtain 5 can be lowered by its own weight.

  The fire shutter device 10 is provided with an obstacle sensing device that detects contact with an obstacle during opening and closing. The obstacle detection control device is configured by a transmitter 6 provided on a seat plate at the lower end of the fire shutter curtain 5 and a receiver 7 provided in a storage box of the fire shutter curtain 5 as shown in the figure. . The transmitter 6 transmits a sensing signal to the receiver 7 in a wired or wireless manner when a seat plate switch (microswitch) is activated by an obstacle touching the seat plate. At this time, the automatic closing device 4 inputs this sensing signal from the receiver, and stops the closing operation of the fire shutter curtain 5 according to the input. Accordingly, when the seat plate comes into contact with an obstacle when the fire shutter curtain 5 is lowered by its own weight at the time of the occurrence of a fire, the weight drop of the fire shutter shutter 5 is stopped.

  FIG. 3 is a view showing an example of the electric manual closing device shown in FIGS. 1 and 2, and is a view showing a state where the lid of the electric manual closing device is opened. The electric manual closing device 8 includes a metal casing 81 and a lid 82. The lid 82 is provided with a resin transparent panel (pushing cap) 84 configured so that an emergency shutter closing button 83 provided inside the housing 81 can be seen from the outside. Although not shown, the lid 82 is provided with a security key. In an emergency, only the emergency shutter closing button 83 can be operated even if the lid 82 is closed by pushing through the transparent panel 84. I have to. This resin-made transparent panel 84 is configured to be easily broken by a hand or the like in an emergency. The emergency shutter closing button 83 is a red push button.

An open button 85, a close button 86, and a stop button 87 for controlling opening / closing of the fire shutter curtain 5 are provided inside the casing 81 of the electric manual closing device 8. Further, a return button 88 for resetting the interlocking repeater 3 and the automatic closing device 4 to which the disaster prevention signal BS is input to a state before the disaster prevention signal BS is input is provided above the emergency shutter closing button 83. ing.
An example of such a fire shutter device is disclosed in Patent Document 1.
JP 2007-138396 A

  The reason why the return button 88 is provided is to artificially reset the control state of the shutter device, which has been automatically closed by the input of the disaster prevention signal BS, based on the judgment of the human situation. Therefore, in the conventional fire-proof shutter device, if someone operates the return button 88 with a wrong judgment (for example, mistaking the shutter due to a false alarm of fire notification) in the event of a fire, the automatic closing device 4 If the disaster prevention signal is not continued even if it is reset and it is in a fire, the fire shutter may not be closed after that.

  An object of the present invention is to provide an opening / closing body automatic closing device and an opening / closing body automatic that can avoid the return processing and continue the automatic closing even when the return button is operated when the fire shutter is in the automatic closing state. To provide a closure method.

The first feature of the automatic opening / closing body closing device of the present invention is that the opening / closing body means provided at the periphery of the opening and the opening / closing body means in response to an input of a disaster prevention signal output from the disaster prevention panel means when a fire occurs An automatic closing means for closing the opening by performing a weight drop operation, and an automatic closing means for maintaining the weight dropping operation of the opening / closing body means even when the input of the disaster prevention signal is lost. When the return button means is operated so that the opening / closing body means does not fall under its own weight, and the return button means is operated, the state of the disaster prevention panel means is confirmed, and the disaster prevention panel means is in an initial state. Control means for returning the opening / closing body means to a state in which the weight does not drop by the operation of the return button means, and disabling the operation of the return button means when the disaster prevention panel means is in a fire detection state; It lies in the fact that with.
Opening / closing body means can be used to open and close doors, windows, or internal passages and spaces in structures such as buildings, houses, factories, warehouses, etc. It is made up of an opening and closing member and a closing member, and is extended to partition the opening for fire prevention, smoke prevention, waterproofing, windproofing, crime prevention, etc. in the event of a disaster or closing. When the opening / closing means is, for example, a fire prevention / smoke prevention shutter curtain for forming a fire prevention section, the fire prevention shutter curtain is stored in an upper part which is one of the peripheral parts of an opening of a building or the like and passes through a lintel etc. Descends and closes the opening. In addition to this, the opening / closing body means may be housed in the side portion of the opening and opened / closed by a horizontal pulling method, or may be housed in the lower part of the opening and opened / closed by an ascending method. The opening / closing body means includes those that can be fully closed by closing and those that cannot be fully closed.
If the return button means is operated while the fire shutter curtain is closed, the automatic closing means will execute the return process, and even if there is a fire, the disaster prevention signal is not continuously output. After that, the fire shutter curtain may not close. Therefore, in the present invention, when the return button means is operated, the state of the disaster prevention panel means is confirmed, and when the disaster prevention panel means is in the initial state, the opening / closing body means is operated to open and close according to the operation of the return button means. A return process is performed to return to a possible state, and the operation of the return button means is disabled when the disaster prevention panel means is in a fire detection state. As a result, when the disaster prevention panel means is in a fire detection state and the fire shutter curtain is in a state to be automatically closed, even if the return button means is operated, the return process is avoided and the automatic closing is continued. be able to.

According to a second aspect of the automatic opening / closing body closing device of the present invention, in the automatic opening / closing body closing device according to the first aspect, a manual operation for manually outputting an emergency closing signal to the automatic closing means is performed. A closing button means is provided, and the automatic closing means is to move the opening / closing body means in response to an input of the emergency closing signal or the disaster prevention signal.
The manual closing button means is, for example, an operator such as an emergency shutter closing button provided in the housing, and outputs an emergency closing signal to the automatic closing means when operated manually. Usually, a part of the casing is provided with a transparent panel that can be pushed and broken, so that it is manually operated by pushing the transparent panel and outputs an emergency closing signal accordingly. The automatic closing means moves the fire shutter curtain and closes the opening by inputting the emergency closing signal or the above-described disaster prevention signal. Even if the fire shutter curtain starts automatic closing due to the input of the emergency closing signal, when the return button means is operated, the state of the disaster prevention panel means is confirmed, and the return processing is executed or disabled according to the state. And As a result, even when the automatic closing is started in response to the operation of the manual closing button means, it is possible to effectively prevent the return button means from being erroneously operated in the event of a fire.

A third feature of the automatic opening / closing body closing device according to the present invention is that, in the automatic opening / closing body closing device according to the first or second feature, an obstacle is detected when an obstacle is detected on the operation path of the opening / closing body means. There are provided obstacle detection means for outputting an object detection signal, and obstacle control means for causing the opening / closing body means in a closing operation to perform an avoidance operation in response to the input of the obstacle detection signal.
As an example, the fire shutter curtain, which is an opening / closing body means, is provided with obstacle sensing means on the seat at the front end of the closing side to detect contact with an obstacle during opening / closing. Accordingly, the obstacle control means is configured to cause the fire shutter curtain to perform the avoidance operation. The avoidance operation here includes the case where the movement of the fire shutter curtain is stopped, the movement speed is suppressed without reaching the stop, or the fire shutter curtain is moved backward from the sensed state. . In addition, the obstacle sensing means includes a contact type sensor provided on a seat plate or the like at the front end of the closed side and a non-contact type sensor such as an area sensor. Accordingly, the fire shutter curtain performs an avoidance operation when the seat plate comes into contact with an obstacle while the fire shutter curtain is moving during automatic closing.

The first feature of the automatic opening / closing body closing method of the present invention is that the opening / closing body means provided at the peripheral edge of the opening is moved down by its own weight in response to the input of the disaster prevention signal outputted from the disaster prevention board means in the event of a fire. In the open / close body automatic closing method for maintaining the weight drop operation of the open / close body means even when the input of the disaster prevention signal is lost,
When the return button means for returning the opening / closing body means to a state in which the opening / closing operation can be operated is artificially operated, the state of the disaster prevention panel means is confirmed, and when the disaster prevention panel means is in the initial state, the return is performed. According to the operation of the button means, the opening / closing body means is returned to a state in which the weight does not drop, and when the disaster prevention panel means is in a fire detection state, the operation of the return button means is invalidated.
This is an invention of an opening / closing body automatic closing method corresponding to the first feature of the opening / closing body automatic closing device.

According to a second feature of the automatic opening / closing body closing method of the present invention, in the automatic opening / closing body closing method described in the first feature, in addition to the disaster prevention signal, an emergency closing signal is generated from a manually operated manual closing button means. Is output, the opening / closing member means is moved in response to the input of the emergency closing signal.
This is an invention of an opening / closing body automatic closing method corresponding to the second feature of the opening / closing body automatic closing device.

According to a third aspect of the automatic opening / closing body closing method of the present invention, in the automatic opening / closing body closing method according to the first or second aspect, an obstacle is detected when an obstacle is detected on the operation path of the opening / closing body means. An object of the present invention is to cause the opening / closing body means during the closing operation to perform an avoidance operation in response to an input of an obstacle detection signal output from the object detection means.
This is an invention of an opening / closing body automatic closing method corresponding to the third feature of the opening / closing body automatic closing device.

  According to the fire shutter device of the present invention, when the fire shutter is in the automatic closing state, even if the return button is operated, the return process can be avoided and the automatic closing can be continued.

It is a figure which shows schematic structure of the conventional fire prevention shutter apparatus which forms a fire prevention division. It is a figure which shows schematic structure of the interlocking repeater of FIG. It is a figure which shows an example of the electric manual closing device of FIG.1 and FIG.2, and is a figure which shows the state which the lid | cover of the electric manual closing device opened. It is a figure which shows schematic structure of the fire prevention shutter apparatus which is an opening-closing body apparatus which concerns on this invention. It is a figure which shows schematic structure of the interlocking repeater of the fire prevention shutter apparatus of FIG. It is a flowchart figure which shows an example of operation | movement of the switchgear apparatus for disaster prevention of FIG.4 and FIG.5.

Hereinafter, a fire shutter device will be described as an example of an opening / closing device according to the present invention with reference to the accompanying drawings.
FIG. 4 is a diagram showing a schematic configuration of a fire shutter device which is an opening / closing device according to the present invention. The fire shutter device is normally in an open state in which the switch 1 basically winds up the fire shutter curtain 5. This open state is maintained by being mechanically held by the brake 2 so as not to close its own weight (lowering its own weight). The automatic closing device 4 includes a disaster prevention signal BS output from the disaster prevention panel 12 to which a detection signal output from the detector 11 (smoke detector, flame detector, etc.) is input in the event of a fire, or an electric manual closing device 8 ( In response to the operation signal of the emergency shutter closing button 83), the release state of the brake 2 is released, and the fire shutter curtain 5 is naturally lowered by its own weight, thereby closing the opening and forming a predetermined fire protection section. It is supposed to be.

  The disaster prevention panel 12 that outputs the disaster prevention signal BS to the interlocking repeater 30 may be provided with a plurality of sensors 11 depending on the installation environment or the like, but when one or more of the plurality of sensors 11 senses The disaster prevention signal BS corresponding to the number of the plurality of sensing signals may be input to the interlocking repeater 30, or a single disaster prevention signal when one or more of the sensors 11 or the like are sensed. The BS may be input to the interlocking repeater 30.

  The opening / closing machine 1 is a drive motor for electrically opening and closing the fire shutter shutter 5 in the normal control of the fire shutter device. The switch 1 is controlled together with the brake 2 by a switch control circuit for normal control (not shown). When it is not necessary to open and close the fire shutter curtain 5 during normal operation, the fire shutter shutter 5 may be configured only by the brake 2 without being configured by the switch 1 and the brake 2 which are driving sources as illustrated. good.

  The disaster prevention panel 12 is installed in a building, and when a detection signal is input from a detector 11 such as a smoke detector or a flame detector that is also disposed in the building, the disaster prevention panel 12 includes a fire prevention shutter device. The signal BS (DC signal 24V) is output. In the fire shutter device according to the present embodiment, the disaster prevention signal BS is input to the control circuit 35 of the interlock repeater 30. When the disaster prevention signal BS is input from the disaster prevention panel 12, the interlocking repeater 30 switches the fire shutter device from normal control to emergency control. In the emergency control, a DC 24V signal is continuously output to the automatic closing device 4. The interlock repeater 30 outputs a DC 24V signal using the commercial power supply 9 if the commercial power supply is not interrupted, but from a built-in standby power supply 33 (battery such as a storage battery) in the event of a power failure. DC 24V signal is output by electric power. Note that switching to emergency control may be such that normal control is disabled and emergency control is started, or emergency control is started while normal control is enabled. You may do it.

  The automatic closing device 4 operates according to electric power (DC 24V signal) from the commercial power supply 9 supplied via the interlock repeater 30 or the standby power supply (storage battery) 33 built in the interlock repeater 30. Moreover, the automatic closing device 4 is based on the disaster prevention signal BS input from the disaster prevention panel 12 even if there is no supply of commercial power to the fire prevention shutter device 10 by the standby power source 33 built in the interlock repeater 30 when a fire breaks out. The brake 2 is released, and the fire-proof shutter curtain 5 having a fire-proof structure in the wound state is lowered by its own weight so that the opening can be automatically closed. Whether or not the automatic closing device 4 releases the brake is fed back to the control circuit 35 of the interlock repeater 30 by a no-voltage signal. Further, in an emergency, the automatic closing device 4 closes the opening by lowering the fire shutter curtain 5 by its own weight according to the operation of the electric manual closing device 8 (emergency shutter closing button 83). It is designed to form a fire protection zone.

  The electric manual closing device 8 includes an emergency shutter closing button 83 (operation button) that is an operation input means for switching the fire shutter device to emergency control even when the disaster prevention signal BS is not input from the disaster prevention panel 12. Is. Similarly to the one shown in FIG. 3, the electric manual closing device 8 includes an input switch (push button switch) corresponding to opening / closing of the switch 1, an emergency shutter closing button 83 (operation button), and a return button 88. And a battery test button 89, and various display means for displaying the battery test result, displaying the status of the standby power supply, and displaying the cord disconnection status.

  The electric manual closing device 8 is covered with a resin-made transparent panel (push-break cap), and can be operated by pressing the resin-made transparent panel in an emergency. ).

  The fire shutter device 10 is provided with an obstacle detection control device that detects contact with an obstacle during opening and closing. The obstacle detection control device includes a seat plate switch 61 provided on the seat plate at the lower end of the fire shutter curtain 5 as shown in the figure, and an obstacle detection control device 13 provided in the storage box of the fire shutter curtain 5. And a signal cord for electrically connecting them. The seat plate switch 61 is attached to the seat plate of the fire shutter curtain 5, and has a built-in micro switch that closes the contact when the seat plate comes into contact with an obstacle such as a person or an object. In this case, it is transmitted as a sensing signal to the obstacle sensing control device 13 via a signal code in a wired manner. The signal code is a cable for transmitting the sensing signal of the seat board switch 61 to the obstacle sensing control device 13. This cable is housed or guided by a cord reel, a movable pulley, or the like, so that it does not bend to prevent the fire shutter curtain 5 from being opened and closed.

  The obstacle detection control device 13 is normally operated by a commercial power supply, controls the operation of the switch 1 in response to the input of a detection signal from the seat plate switch 61, and at least in the event of an emergency such as a fire, the seat plate. The obstacle detection signal from the switch 61 is output through to the automatic closing device 4. The automatic closing device 4 stops the closing operation of the fire shutter curtain 5 according to the input of the obstacle detection signal from the obstacle detection control device 13 and performs the avoidance operation. Therefore, when the fire shutter curtain 5 is lowered by its own weight in the event of a fire, if the seat plate or the like comes into contact with an obstacle and a detection signal is detected from the seat plate switch 61, the weight drop of the fire shutter curtain 5 is stopped. Then, the avoidance operation is performed.

  When the obstacle detection control device 13 receives an obstacle detection signal while the fire shutter curtain 5 is being lowered in the normal control, the obstacle detection control device 13 works in conjunction with an unillustrated switch control panel to lower the fire shutter curtain 5. Is stopped and raised for a certain period of time. On the other hand, the obstacle detection control device 13 receives an obstacle detection signal when the automatic closing device 4 is activated in emergency control such as when a fire occurs and the fire shutter curtain 5 is lowered. Outputs the obstacle detection signal to the automatic closing device 4, and the automatic closing device 4 returns the release state of the brake 2 in response to the input of the obstacle signal and temporarily stops the fire shutter curtain 5. Control is performed.

  FIG. 5 is a diagram showing a schematic configuration of the interlock repeater of the fire prevention shutter device of FIG. The interlock repeater 30 receives supply of a commercial power source (AC 100 [V], AC 200 [V], etc.) 9 from the outside, and a standby power source 33 such as a battery serving as a power supply source of a separate system from the commercial power source 9. Built-in. Therefore, the interlock repeater 30 can operate the automatic closing device 4 by the standby power source 33 or the standby power source of the disaster prevention panel 12 even if the commercial power source 9 cannot be supplied in an emergency.

  As shown in FIG. 5, the interlock repeater 30 includes a power supply circuit 31, a charging device 32, a standby power supply (storage battery) 33, a power supply switching device 34, and a control circuit 35. The power supply circuit 31 converts the commercial power supply 9 into a DC 24V signal, supplies a DC voltage to the control circuit 35 via the power supply switching device 34 and supplies power to the charging device 32. The charging device 32 charges the standby power supply (storage battery) 33 using the power from the power supply circuit 31. The standby power source (storage battery) 33 is composed of a lithium ion rechargeable battery or other battery (including a rechargeable type power source that can be used up like a dry battery) and the like, and a DC voltage control circuit via a power source switching device 34 35.

  The power supply switching device 34 selectively switches one of the power supply circuits 31 and the standby power supply 33 and connects it to the control circuit 35. Note that the rechargeable power source may be replaced with a type of power source that can be used up, such as a dry battery. In this case, charging is not performed, and thus the charging device is disabled or unnecessary. In this case, power supply from a commercial power supply is not necessary if it is not used except for emergency and maintenance inspection.

  Normally, since the power from the commercial power supply 9 is supplied, the DC voltage from the power supply circuit 31 is supplied to the control circuit 35, but the power supply from the commercial power supply 9 is stopped in an emergency such as a fire. In such a case, the operation is performed so that the DC voltage from the standby power supply 33 is supplied to the control circuit 35. In other words, the standby power supply 33 built in the interlock repeater 30 supplies power to the control circuit 35 even when commercial power is not supplied to the fire prevention shutter device 10 due to some trouble or failure in the event of a fire. Is something that can be done.

  The control circuit 35 outputs an operation signal (DC 24V signal) to the automatic closing device 4 based on the disaster prevention signal BS input from the disaster prevention panel 12 that operates according to the detection signal of the sensor 11 and releases the brake 2. . That is, since the control circuit 35 can receive power supply from the commercial power supply 9 or the standby power supply 33, the operation signal (DC 24V signal) is automatically generated based on the disaster prevention signal BS input from the sensor 11 to the control circuit 35. By outputting to the closing device 4 and releasing the brake 2, the fire-proof shutter curtain 5 of the fire-proof structure in the winding state is lowered by its own weight, and the opening is automatically closed.

  Similarly, the control circuit 35 outputs an operation signal (DC 24V signal) to the automatic closing device 4 based on the input of the operation signal of the emergency shutter closing button 83 of the electric manual closing device 8 and releases the brake 2. The operation signal is continuously output until the operation signal of the return switch is input. Further, in this embodiment, the control circuit 35 outputs a disaster prevention panel confirmation signal to the disaster prevention panel 12 based on the input of the operation signal of the return button 88 from the electric manual closing device 8.

  When the disaster prevention panel 12 that has input the disaster prevention panel confirmation signal does not sense a fire or is in an initial state that has been reset after sensing a fire, an initial state signal indicating that the disaster prevention panel 12 is in an initial state is transmitted to the control circuit. When a fire detection state is detected, a detection state signal indicating that fact is output to the control circuit 35.

  When the initial state signal is input from the disaster prevention panel 12, the control circuit 35 outputs a signal instructing the automatic closing device 4 to return the brake 2 from the released state, and the brake 2 has returned from the released state. As soon as the control circuit 35 can receive the feedback signal from the automatic closing device 4, the output of the operation signal (DC 24V signal) to the automatic closing device 4 is stopped (OFF) and the operation of the control circuit 35 is reset, When the detection state signal is input, the input of the operation signal of the return button 88 is invalidated, and the control circuit 35 does not stop (OFF) the output of the operation signal, and continues the self-weight lowering process of the fire shutter shutter 5. Since the interlock repeater 30 and the automatic closing device 4 return to the state before the operation signal of the emergency shutter closing button 83 from the disaster prevention signal BS or the electric manual closing device 8 is input, the control for the normal time is performed thereafter. Become.

  In addition, when the sensor 11 detects a fire, a detection signal is output from the sensor 11 to the disaster prevention panel 12, and the disaster prevention panel 12 outputs a disaster prevention signal BS to the interlocking relay 30 correspondingly. The disaster prevention signal BS is often a single signal of about 10 seconds. However, since a continuous operation signal (DC 24V signal) is continuously output from the control circuit 35 of the interlock repeater 30 to the automatic closing device 4, the fire-proof shutter curtain 5 of the fire-proof structure in the winding state is lowered by its own weight. And the opening can be automatically closed.

  On the other hand, when the electric manual closing device 8 (emergency shutter closing button 83) is operated and an operation signal is output to the control circuit 35 of the interlock repeater 30, it is continuously operated from the control circuit 35 of the interlock repeater 30. A signal (DC 24V signal) is output to the automatic closing device 4, and the fire-proof shutter curtain 5 of the fire-proof structure in the winding state is lowered by its own weight, and the opening can be automatically closed.

  At this time, when the electric manual closing device 8 (emergency shutter closing button 83) is operated by receiving power from the standby power supply 33, the remaining power capacity of the standby power supply 33 may or may not be sufficient. When the electric manual closing device 8 (emergency shutter closing button 83) is operated, the fire shutter curtain 5 cannot be lowered by its own weight, so that the electric manual closing device 8 is positioned adjacent to the electric manual closing device 8. It is preferable to provide a remaining amount display device or the like so that the remaining amount of electric capacity of the standby power supply 33 can be displayed, the remaining amount can be easily confirmed, and appropriate maintenance can be performed.

  When a fire signal is generated from the sensor 11 or when the electric manual closing device 8 (emergency shutter closing button 83) is operated, the fire shutter curtain 5 is being closed, that is, the fire shutter curtain 5 is being lowered. Therefore, during this time, if the obstacle detection control device detects an obstacle, an obstacle detection signal is input from the seat plate switch 61 to the automatic closing device 4, so that the automatic closing device 4 automatically applies the brake 2 The released state is restored, the brake is applied, and the descending of the fire shutter curtain 5 is stopped. When the obstacle is removed, a signal indicating sensing off is input from the seat switch 61 to the automatic closing device 4 so that the automatic closing device 4 operates again, the brake 2 is released, and the fire shutter curtain 5 is released. Starts to descend due to its own weight, and when the opening is fully closed by the fire shutter shutter 5, its own weight descent stops.

  At this time, the operation and release of the brake 2 are performed using the power of the operation signal (DC 24V). It is to be noted that, for example, a timer may be provided to provide a predetermined time from when the obstacle is removed and the seat switch 61 returns to the off state until the detection off signal is input to the automatic closing device 4, or automatically. The automatic closing device 4 operates again after the obstacle is removed, for example, by providing a predetermined time after the sensing off signal is input to the closing device 4 until the automatic closing device 4 operates again. A predetermined time difference from when 2 is opened to when the fire shutter curtain 5 starts to descend by its own weight may be provided.

FIG. 6 is a flowchart showing an example of the operation of the disaster-prevention opening / closing body device of FIGS. 4 and 5.
In step S61, it is determined whether or not a sensing signal from the sensor 11 has been received, or whether or not the electric manual closing device 8 (emergency shutter closing button 83) has been operated (turned on). Alternatively, if it has been operated (turned on) (yes), the process proceeds to the next step S62. If it has not been received or has not been operated (no), the process proceeds to step S61 until the signal is received or operated. Repeat the determination process. While the determination process in step S61 is repeated as normal control without detecting fire, the operation from the open button 85, the close button 86, and the stop button 87 to the switch control circuit (not shown) is similarly performed as normal control. Electric opening and closing can be performed by a signal.

In step S62, when the sensing signal is received from the sensor 11, or when the electric manual closing device 8 (emergency shutter closing button 83) is operated (turned on), the automatic closing device 4 performs the brake 2 Execute the process to release.
In step S63, the fire shutter curtain 5 starts to descend by its own weight by the brake 2 releasing process in step S62.

In step S64, the return button 88 of the electric manual closing device 8 is operated, and it is determined whether or not the operation signal is input. If it is input (yes), the process proceeds to the next step S65, and the input is not performed. If (no), jump to Step S67.
In step S65, the disaster prevention panel confirmation signal is transmitted from the control circuit 35 to the disaster prevention panel 12, and based on the initial state signal or the detection state signal from the disaster prevention panel 12, the disaster prevention panel 12 does not sense a fire, or After detecting a fire, it is determined whether it is in a reset state, that is, in an initial state. If it is in an initial state (yes), the process proceeds to the next step S66, and if it is not in an initial state (no), that is, a fire detection state If YES, the process proceeds to step S67.

In step S66, it is determined in step S65 that the disaster prevention panel 12 has not sensed the fire or has been reset after the fire has been sensed. The operation signal (DC 24V signal) is stopped (OFF), the operation of the control circuit 35 is reset, and the process returns.
In step S67, it is determined whether or not any obstacle has contacted the seat plate at the lower end of the fire shutter curtain 5 and is detected by the seat plate switch 61 built in the seat plate, and is detected (yes). If not, the process proceeds to step S69, and if not detected (no), the process proceeds to step S68.

  In step S68, the descent operation of the fire shutter curtain 5 is continued, and the process returns to step S64. When the fire shutter curtain 5 is lowered and comes into contact with the floor surface or the like and becomes fully closed, further closing cannot be performed. Return. On the other hand, if an obstacle detection signal is output from the microswitch and it is determined yes in step S67, the process proceeds to step S69.

  In step S <b> 69, the determination of “yes” in step S <b> 67 means that the seat plate has come into contact with some obstacle during the lowering operation of the fire shutter curtain 5, so the descent of the fire shutter curtain 5 is stopped. . The stop here is to apply braking, and the stop state (avoidance operation) is maintained until the brake is released in step S62.

  In step S6A, the determination of step S6A is repeated until no obstacle detection signal is continuously sensed from the seat board switch 61 built in the seat board. When no obstacle detection signal is sensed, the process returns to step S62. Release the brake and resume the weight drop. In this embodiment, as long as the obstacle detection signal is continuously sensed, a flow in which this step S6A cannot be exited is shown.

  In the above-described embodiment, when the obstacle detection signal is no longer sensed, the process returns to step S62. However, in the usage mode in which the descent is prioritized, the predetermined state is maintained even in the sensed state. The process may return to step S62 as time elapses, and the descent may be resumed, or may be lowered by a predetermined distance or a predetermined time depending on circumstances. It should be noted that after the obstacle detection signal is no longer sensed, the descent may be resumed by returning to step S62 after a predetermined time has elapsed. Further, in the loop of step S6A, the determination of the input of the return button is executed in the same manner as in step S64. When the return button is operated, the control circuit is reset if the disaster prevention panel is in the initial state. Also good.

Moreover, in the above-described embodiment, the fire shutter shutter that is an open / close member is described as an example of a fire shutter device that is drawn out while being closed, but in addition to this, the open / close member is extended in a horizontal pulling system, It can be applied in the same manner even if it is paid out by the ascending method or is drawn out by the horizontal method. The natural closing of the opening / closing member fed out in the horizontal pulling method, the ascending method or the horizontal method may be natural closing using a spring force instead of natural closing due to its own weight.
In addition, there are some that are not suitable for fire, but as the opening and closing body, for example, a shutter device, blind device, roll screen device, banner device, door, water stop plate, etc., select an appropriate device according to the type of disaster prevention do it. When the opening / closing body device is a shutter device, the opening / closing member which is the opening / closing body means is a fire shutter curtain, and the structure thereof is a slat curtain made of a large number of strip-shaped slat materials, a large number of pipe materials made of link materials, etc. Pipe grill curtains that are connected, panel curtains that are made of single or multiple connected panel materials, net curtains that are made of net materials, sheet curtains that are made of synthetic resin or fabric fiber sheet materials, or composite members thereof This is due to a composite curtain made of
Furthermore, the material of the opening / closing member that is the opening / closing member means may be any material as long as it meets the purpose of use. Specifically, it can be made of metal, wood, plastic, cloth, or a composite of these. In the case of an opening / closing body device installed for the purpose of fire prevention, the material of at least the opening / closing member which is the opening / closing body means preferably has fire resistance.

In the above-described embodiment, an example in which an obstacle is detected by abutting against the obstacle, such as a seat plate switch, has been described as an example, but other obstacles can be detected by a tape switch or non-contact. It may be a thing. For example, as an object that detects an obstacle without contact, an infrared light emitting element and a light receiving element are provided on both sides of the opening / closing member, and the obstacle is detected when the infrared light is blocked. There is. The obstacle detection means detects an obstacle present in the opening including the periphery of the opening.
In the above-described embodiment, the case where the electric manual closing device 8 (emergency shutter closing button 83) operates by receiving an output from the standby power supply 33 has been described. A dedicated standby power source for operating the shutter closing button 83) may be provided separately from the standby power source 33.

In the above-described embodiment, the case where the disaster prevention signal BS is output from the disaster prevention panel has been described. However, the disaster prevention signal BS may be directly output from a sensor, an emergency button, or the like. The disaster prevention signal BS may be a voltage signal such as a DC 24V signal, or may be a non-voltage signal. In addition to the automatic closing device, the interlocking relay 30 may supply power to the obstacle detection control device 13 or the like as necessary.
If it is assumed that it is necessary to forcefully perform a return operation regardless of the detection state of the disaster prevention panel, a position with lower accessibility than the return button 88 in this embodiment (for example, a manufacturer's service engineer) It is also possible to add a return button that is not linked to the sensing state of the conventional disaster prevention panel on the circuit board of the interlocking control panel that can only be accessed.
In FIG. 4, for convenience of explanation, the interlocking repeater is displayed separately from the fire shutter device, but may be incorporated in the fire shutter device such as the obstacle sensing device 13. Further, the interlock repeater 30, the obstacle detection control device 13, the automatic closing device 4, the brake 2, the manual closing measure 8, and the switch control circuit (not shown) may be separate devices or may be integrated into one. It may be a component in the apparatus.

DESCRIPTION OF SYMBOLS 1 ... Switch 10 ... Fire shutter device 11 ... Sensor 12 ... Disaster prevention board 13 ... Obstacle detection control device 2 ... Brake 3, 30 ... Interlocking relay 31 ... Power supply circuit 32 ... Charging device 33 ... Standby power supply 34 ... Power supply switching Device 35 ... Control circuit 4 ... Automatic closing device 5 ... Fire shutter curtain 6 ... Transmitter 61 ... Seat plate switch 7 ... Receiver 8 ... Electric manual closing device 81 ... Case 82 ... Cover 83 ... Emergency shutter closing button 84 ... Transparent panel 85 ... Open button 86 ... Close button 87 ... Stop button 88 ... Return button 89 ... Battery test button 9 ... Commercial power supply

Claims (6)

Opening and closing body means provided at the peripheral edge of the opening;
An automatic closing means that closes the opening by lowering the weight of the opening / closing body means according to the input of the disaster prevention signal output from the disaster prevention panel means in the event of a fire, even when the input of the disaster prevention signal is lost Automatic closing means for maintaining the weight lowering operation of the opening / closing body means;
A return button means for returning to a state in which the opening / closing body means is not lowered by its own weight by being artificially operated;
When the return button means is operated, the state of the disaster prevention panel means is confirmed, and when the disaster prevention panel means is in an initial state, the opening / closing body means does not fall under its own weight according to the operation of the return button means And a control means for disabling the operation of the return button means when the disaster prevention panel means is in a fire detection state. The automatic opening / closing body closing device according to claim 1,
Manual closing button means for outputting an emergency closing signal to the automatic closing means by being manually operated,
An opening / closing body automatic closing device, wherein the automatic closing means moves the opening / closing body means in response to an input of the emergency closing signal or the disaster prevention signal. In the automatic opening / closing body closing device according to claim 1 or 2,
Obstacle detection means for outputting an obstacle detection signal when an obstacle is detected on the operation path of the opening / closing body means;
An opening / closing body automatic closing device comprising obstacle control means for causing the opening / closing body means being closed to perform an avoiding operation in response to an input of the obstacle sensing signal. In response to an input of a disaster prevention signal output from the disaster prevention panel means in the event of a fire, the opening / closing body means provided at the peripheral edge of the opening is moved down by its own weight, so that the opening / closing body even when the input of the disaster prevention signal is lost In the automatic closing method of the opening and closing body that maintains the weight drop operation of the means
When the return button means for returning the opening / closing body means to a state in which the opening / closing operation can be operated is artificially operated, the state of the disaster prevention panel means is confirmed, and when the disaster prevention panel means is in the initial state, the return is performed. The opening / closing body automatic is characterized in that the opening / closing body means is returned to a state where it does not fall under its own weight according to the operation of the button means, and the operation of the return button means is invalidated when the disaster prevention panel means is in a fire detection state. Closure method. The automatic opening / closing body closing method according to claim 4,
In addition to the disaster prevention signal, when an emergency closing signal is output from a manually operated manual closing button means, the opening / closing body means is moved even when the emergency closing signal is input. Automatic closing method. In the automatic opening and closing body closing method according to claim 4 or 5,
When an obstacle is detected on an operation path of the opening / closing body means, the opening / closing body means in the closing operation is caused to perform an avoidance operation in response to an input of an obstacle detection signal output from the obstacle detection means. Opening and closing body automatic closing method.

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