JP3618231B2 - Fire shutter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present inventionFire prevention shutterIs.
[0002]
[Prior art]
PreventionThe fire shutter functions to prevent the spread of fire and the like by closing operation by detecting the high heat or smoke accompanying the fire and starting the closing operation. Such a fire shutter can be returned from the closed state to the open state manually or electrically.
[0003]
[Problems to be solved by the invention]
In the case of a fire shutter, it automatically descends when a fire breaks out, and the opening / closing operation mechanism is generally assumed to be used for emergency or training, so it is difficult to see for ordinary people There are many. Moreover, it is difficult to open the fire shutter manually.
[0004]
In addition, if an evacuee recognizes a manual operation member, an electric opening command operator, etc. and operates them to return the shutter to the open state, it can escape, but in that case There is a risk that the shutter will not be closed again, and the shutter may not be able to cope with the transition from the other side to the closed state again. There is.
[0005]
The present invention has been made in consideration of the above points, and is delayed after the closed state.Fire shutterCan help people who have reached the position to avoid the trouble of closing themselvesFire shutterIt is what I tried to provide.
[0006]
[Means for Solving the Problems]
To solve this problem,BookInvented the building openingMove downCan open and closeShutter bodyAnd thisShutter bodyOpen / close body driving means for drivingFire detectionTo open the building opening in the open stateShutter bodyAnd a closing activation means for generating a command for full closing byFire shutterIn(1) a first timer that measures a first predetermined time after the shutter body is fully closed by the closing operation upon detection of the occurrence of a fire; and (2) extended in the width direction of the building opening. In addition, when the opening of the building is fully closed by the shutter body, a long switch for contact detection provided at the position of the shutter body that is highly likely to be touched unconsciously by humans. (3) a second timer that times a second predetermined time shorter than the first predetermined time; and (4) the long switch is operated before the first timer expires. The shutter body is moved upward by a predetermined amount to partially open the building opening, and this partial open state is maintained during the time counting operation of the second timer. Fully closed So ascribedEscape assistance means,(5) first notification means for notifying the outside without operating the shutter body when the long switch is operated after the first timer expires;It is characterized by providing.
[0007]
With these configurations of the present invention, after being totally closedFire shutterA person or the like who has reached the position can be assisted so as to avoid a situation which is troubled by the fully closed state.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, according to the present invention,PreventionFire shutterofAn embodiment will be described in detail with reference to the drawings. The fire shutter of this embodiment is a so-called panel shutter.
[0009]
Here, FIG. 2 is a perspective view in a closed state of the fire shutter of this embodiment, and FIG. 3 is a block diagram showing an electrical processing configuration of the fire shutter of the embodiment.
[0010]
In FIG. 2, the fire shutter 1 is in a closed state, and a pair of guide rails 2a and 2b, a plurality of (six in the example of FIG. 2) shutter panels 3a to 3n, and a storage box 4 are visible from the outside. It can be configured.
[0011]
The pair of guide rails 2a and 2b are installed in parallel at a predetermined distance so as to extend in the vertical direction in the building opening, and guide the vertical movement of the shutter panels 3a to 3n.
[0012]
Each of the shutter panels 3a,..., 3n is stored in parallel in the depth direction of the storage box 4 in a separate form in the storage box 4 when the building opening is open. In addition, the shutter panels 3a,..., 3n are stacked in the vertical direction in the closed state of the building opening, and the upper and lower ends thereof engage with the lower and upper ends of the other shutter panels without leaving a gap. They are stacked in the vertical direction.
[0013]
The movement of the group of shutter panels 3a to 3n for the transition between the open state and the closed state described above is driven by the opening / closing drive unit 7 (see FIG. 3). The opening part opening / closing drive part 7 is the same as the conventional one. Although not shown in the drawings, the opening / closing drive unit 7 is, for example, an opening / closing machine for a pair of drive chains that are attached to the left and right ends of the shutter panels 3a,. Rotating motion of the (motor) is transmitted to move up the group of shutter panels 3a to 3n, release the position holding function of the switch, and move down by the weight of each shutter panel 3a,. In the case of this embodiment, the opening / closing drive unit 7 also incorporates a secondary battery as a power source for driving, and can perform an opening / closing operation even when power supply to the entire building is stopped. is there.
[0014]
As described above, the storage box 4 stores the group of shutter panels 3a to 3n in the closed state. Further, the storage box 4 contains the above-described opening / closing drive unit 7 and a control panel 20 (see FIG. 3) having many elements of the electrical processing configuration shown in FIG.
[0015]
In the fire shutter 1 of this embodiment, unlike the conventional apparatus, one or more of a range that can be reached by a person (a range that is about the height of a person from the bottom, especially a range that can be reached by a person of elementary school) Long switches 5b and 5c extending in the width direction of the opening are attached to the shutter panels (second and third shutter panels from the bottom in the example of FIG. 2) 3b and 3c. The long switches 5b and 5c are, for example, band-like switches (so-called tape switches) or cylindrical switches that are sensitive to pressure and contact, and their operation signals are transmitted to the control panel 20 side. Since the operations on the long switches 5b and 5c are naturally performed by humans, it can be said that the long switches 5b and 5c constitute a means for detecting the presence of a person. Note that an operation signal is naturally output even when an object other than a human touches the long switches 5b and 5c.
[0016]
Since the long switches 5b and 5c are long (or area), there is a high possibility that a person who has escaped will come into contact with him unconsciously. In consideration of such unconscious contact, ease of contact, and the like, it is preferable that the long switches 5b and 5c are provided at a height of a position slightly higher than the lowest end in the closed state.
[0017]
Here, it is preferable that the long switches 5b and 5c are detachably attached to the shutter panels 3b and 3c to which they are attached. This is because when the long switches 5b and 5c cannot perform their original functions due to high heat or the like and need to be replaced, the shutter panel 3b to which the long switches 5b and 5c are attached, This is because it can be exchanged not in units of 3c but in units of long switches 5b and 5c to return to the original state. In addition, since the long switches 5b and 5c have a covering material such as rubber that deteriorates with time faster than the metal that is the material of the shutter panels 3b and 3c, the long switches 5b and 5c are longer than the shutter panels 3b and 3c. Since the life of 5c is considered to be shorter, it is preferable that the long switches 5b and 5c are detachably attached to the shutter panels 3b and 3c.
[0018]
In FIG. 2, the long switches 5b and 5c are shown extending in the width direction of the building opening. However, the long switches may be provided so as to extend in the vertical direction of the building opening. A long switch may be provided so as to extend in both the width direction and the vertical direction of the building opening. When long switches are provided so as to extend in both the width direction and vertical direction of the building opening, a plurality of long switches extending in the width direction (or vertical direction) are provided to increase the contactable area. More than the increase, the contactable area can be increased, and the unconscious contact opportunity can be increased.
[0019]
Further, in the fire-proof shutter 1 of this embodiment, unlike the conventional apparatus, a passage recommendation notification unit 6 is provided in a certain shutter panel (the fourth shutter panel from the bottom in the example of FIG. 2) 3d. . The passage recommendation notification unit 6 visually and / or audibly notifies information related to passage recommendation and the like given from the control panel 20 as will be described later. For example, as a visual notification configuration, a dot matrix type display device in which light emitting diodes are arranged vertically and horizontally, a liquid crystal display device, or the like can be applied, or simple light emission by a lamp or the like may be used. In addition, a speaker device can be applied as an audible notification configuration. Here, the passage recommendation notifying unit 6 may be a unit that gives a notification signal as it is to be notified, or after an information code or a notification activation signal is provided and a notification signal is formed based on the information code or notification start signal. It may be a notification. In the latter case, it is necessary to mount a circuit portion that performs conversion operation from the information code on the shutter panel 3d.
[0020]
The passage recommendation notification unit 6 is also preferably provided detachably with respect to the shutter panel 3d for the reasons described above.
[0021]
For example, as shown in FIG. 4, the lead wires between the long switches 5b and 5c and the control panel 20 and the lead wires between the passage recommendation notification unit 6 and the control panel 20 are shutter panels 3b to 3n. The left and right ends (FIG. 4 shows the case of the right end) are sequentially connected. That is, it extends in one guide rail 2b. Here, the lead wires may be ones in which the long switches 5b and 5c and the passage recommendation notification unit 6 are individually extended, or a plurality of lead wires are bundled into a cable. It may be. Further, a common lead wire is applied, and the long switches 5b and 5c, the passage recommendation notification unit 6 and the like use the common lead wire in time division (including time division other than simple time division such as in a polling method). It may be a thing. Although the above has shown what is connected to the control panel 20 by a wired line, it may be connected to the control panel 20 by a wireless line.
[0022]
Next, the configuration of the control panel 20 and its surroundings in the fire shutter 1 will be described with reference to the functional block diagram shown in FIG.
[0023]
In FIG. 3, the same parts as those in FIG. That is, the group of shutter panels 3a to 3n, the long switches 5b and 5c, the passage recommendation notification unit 6, and the opening opening / closing drive unit 7 in FIG. 3 are the same as those described with reference to FIG.
[0024]
The control panel 20 includes one or more (two in the example of FIG. 3) fire detection detection in addition to the long switches 5b and 5c, the passage recommendation notification unit 6 and the opening opening / closing drive unit 7 as described above. Sensors 11a and 11b and a human presence detection notification unit 12 are also connected.
[0025]
The fire occurrence detection sensors 11a and 11b are provided, for example, in the vicinity of the fire shutter 1 (for example, the lower surface of the storage box 4 or a ceiling surface close to a building opening as a target). The fire occurrence detection sensors 11a and 11b correspond to a smoke detection sensor, a high temperature (high temperature generated when a fire occurs) detection sensor, or the like. Note that the fire occurrence detection sensors 11a and 11b may output a detection signal when the occurrence of a fire is detected, and a signal indicating a target physical quantity (temperature or smoke quantity) is always or at a predetermined cycle. And the control panel 20 (especially the sensor input unit 26) may detect the occurrence of a fire.
[0026]
Based on the command from the control panel 20, the person presence detection notifying unit 12 notifies the outside that the presence of a person has been detected after the building opening has been closed by the shutter. For example, it notifies the management room that centrally manages the disaster prevention relations of the entire building, notifies the fire department, or notifies the broadcasting system for the entire building.
[0027]
The control panel 20 includes an operation unit 21, a storage unit 22, an external storage unit 23, a timer unit 24, a switch input unit 25, a sensor input unit 26, an output unit 27, and a control unit 28.
[0028]
The operation unit 21 gives an operation signal from the operator to the control unit 28. For example, an operation signal or the like for moving the group of shutter panels 3a to 3n up and down during maintenance work is output. In FIG. 1, the operation unit 21 is provided on the control panel 20, but may be provided outside the control panel 20.
[0029]
The storage unit 22 is constituted by, for example, a ROM or a RAM. The storage unit 22 stores a closing command time processing program (see FIG. 1 described later) executed by the control unit 20. The portion of the storage unit 22 that can be written to and read from is used as a working memory as appropriate when the program is executed.
[0030]
The external storage unit 23 is composed of, for example, a disk device. The external storage unit 23 stores, for example, information related to the passage recommendation to be given to the passage recommendation notification unit 6 (specific contents will be clarified in the description of the operation) and information notified to the outside by the person presence detection notification unit 12 Has been. For example, a code that defines the information type is given to the passage recommendation notification unit 6 and the person presence detection notification unit 12, and the passage recommendation notification unit 6 and the person presence detection notification unit 12 form a message from the code. In the case of a simple configuration, the external storage unit 23 can be omitted. Further, the external storage unit 23 may be used for storing operation histories of the long switches 5b and 5c and the fire occurrence detection sensors 11a and 11b.
[0031]
The timer 24 measures a predetermined time instructed by the controller 28. The timer unit 24 may be a hard timer using a counter or the like, or may be a soft timer that counts in software.
[0032]
The switch input unit 25 has an interface function of notifying the control unit 28 of an operation signal from the long switches 5b and 5c.
[0033]
The sensor input unit 26 has an interface function of notifying the control unit 28 of detection signals from the fire occurrence detection sensors 11a and 11b.
[0034]
The output unit 27 has an output interface function that gives information from the control unit 28 to the passage recommendation notification unit 6 and the person presence detection notification unit 12.
[0035]
The control unit 28 is composed of, for example, a microprocessor, and controls the overall operation of the fire shutter 1. In the case of the first embodiment, the control unit 28 controls the entire operation of the fire shutter 1 so as to execute the operation shown in FIG.
[0036]
Hereinafter, referring to the flowchart shown in FIG.thisThe operation of the fire shutter 1 according to the embodiment will be described.
[0037]
When the opening is in the open state, the controller 28 constantly monitors whether or not the fire occurrence detection sensors 11a and 11b have been detected (step 100). A closing command is given to the opening / closing drive unit 7 to move down the group of shutter panels 3a to 3n to close the opening (step 101). Note that FIG. 3 shows that there is no signal reception configuration from the central monitoring panel to the control panel 20, but in the fire shutter with such a reception configuration, in response to a fire occurrence notification from the central monitoring panel side. The process of step 101 for closing the opening may be executed. Further, the processing of step 101 may be executed by pressing a closing switch (not shown).
[0038]
When the control unit 28 thus closes the opening, the control unit 28 instructs the timer unit 24 to start the timer 1 (step 102). The time measured by the timer 1 is the time from the closing time until the long switches 5b and 5c may send an erroneous operation signal due to a fire, and the possibility that a person who has escaped from the closing time will arrive. It is determined in consideration of the time until a certain point. For example, it is set to about 5 minutes.
[0039]
Thereafter, the control unit 28 causes the passage recommendation notification unit 28 to notify a message that prompts the person who has reached the position of the fire shutter 1 to escape and contact the long switches 5b and 5c (step). 103). Instead of notifying the passage recommendation notifying unit 28 of a message that prompts the user to contact the long switches 5b and 5c, such a message is described at any position on the shutter surface in the closed state. You can keep it.
[0040]
In the closed state of the opening, the control unit 28 monitors whether the long switches 5b and 5c are operated (step 104).
[0041]
When an operation on the long switches 5b and 5c is detected in the operation monitoring state of the long switches 5b and 5c in which the processing loop consisting of steps 104 and 105 is repeated, in other words, the presence of a person who has escaped is detected. The control unit 28 causes the person presence detection notifying unit 12 to notify the outside that the person has been detected after the building opening has been closed by the shutter.
[0042]
Thereafter, the control unit 28 determines whether or not the timer 1 has already expired (step 106). If the time is up, the process returns to step 103. If the time is not up, the process proceeds to step 107 and subsequent steps. Here, when the time is up, returning to the processing of step 103 means that if the long switches 5b and 5c are operated after the time counted by the timer 1 is exceeded, the human presence detection notifying unit This means that only notification to the outside by 12 is executed.
[0043]
The control unit 28106If a negative result is obtained in other words, in other words, when a person who has escaped operates the long switches 5b and 5c before the predetermined time counted by the timer 1 ends, the passage recommendation notification unit 6 causes a predetermined time from now on. Only the shutter is opened by a predetermined amount so that a message indicating that it should pass is notified (step 107), and then the opening / closing drive unit 7 is controlled to open the shutter by a predetermined amount as illustrated in FIG. (Step 108), and then waits for a predetermined time by the timer 2 in the timer unit 24 (Steps 109 and 110). When this timer is finished, the opening / closing drive unit 7 is controlled again to close the opening. (Step 111). Thereafter, the control unit 28 returns to the process of step 103.
[0044]
As a result of the processing of steps 107 to 111 as described above, the opening is changed from the closed state to a slightly opened state for a predetermined time, returned to the closed state again, and in the slightly opened state, The fire shutter 1 can be passed according to the passage recommendation.
[0045]
Here, the open state for passing a person who has escaped may be a completely open state, but the partial open state as described above is preferable. This is due to the following reason. Since the fire shutter 1 originally prevents the spread of fire and the spread of smoke, the fire shutter 1 does not originally want to be opened after it is closed. On the other hand, it is not preferable to prevent a person who has escaped from passing because there is a possibility that a person who has escaped may be trapped. In consideration of such points, in the first embodiment, the minimum opening amount that can achieve passing a person who has escaped is set to the minimum necessary amount.
[0046]
If the time for such a partial open state is increased, the original closing function of the fire shutter is impaired. On the other hand, if the time of the partial open state is too short, there is a possibility that a person who has escaped even if it is partially opened cannot pass. In particular, when a plurality of people reach the position of the fire shutter 1 at the same time, some people may not be able to pass depending on the partially opened time.
[0047]
The time measured by the above-described timer 2 (partial open state duration) is determined in consideration of the above points. For example, it is set to about 10 seconds.
[0048]
As described above, after the opening is closed again in step 111, the process returns to step 103. Therefore, if it is within the time measured by the timer 1, the partial open state is performed not only once but twice or more. It can happen.
[0049]
According to the fire shutter 1 of the above embodiment, the following effects can be achieved.
[0050]
(1) People who have missed the escape after reaching the fire shutter position after the opening has been closed can be allowed to pass by partial opening, preventing people who have been late from being trapped in the building. it can.
[0051]
Fire shutters generally have significant weight and are difficult to open not only by powerless people but also by ordinary people in the closed state, but even such people can pass by partial opening. it can. Moreover, even if it has a manual or electric opening function, there are many people who do not know the function, and even if such a person is late to escape, it can prevent being confined in a building.
[0052]
(2) It seems that many people who are late to escape after reaching the fire shutter position after the opening is closed will contact the fire shutter unconsciously. Since the long switch is provided at a position where it is easy for humans to touch, it is possible to increase the transition instruction opportunity in the partially opened state and increase the chance of passage. In particular, since the passage recommendation notifying unit is provided to promote contact with the long switch, the transition to the partially opened state can be made more reliable.
[0053]
(3) When a person who has escaped after the opening has been closed reaches the position of the fire shutter, it is detected and notified to the outside by the person presence detection notification unit. , Outsiders can recognize it and take appropriate measures and preparations if necessary.
[0054]
In particular, in the case of this embodiment, even if the time that allows partial transition to the open state is exceeded, the person presence detection notification unit notifies the outside, so that an external person can rescue the It is also possible to perform.
[0055]
(4) Even if a predetermined time elapses from the closed state to the partially open state, the closed state is again set, and the open state for passing a person who is late to escape is also partially open. Since it is a state, the fire protection function required for the fire shutter is hardly impaired.
[0056]
(5) Since the long switch and the passage recommendation notification section are detachably attached to a predetermined shutter panel, even if the long switch and the passage recommendation notification section are damaged in the event of a fire, By exchanging the long switch and the passage recommendation notifying unit, the fire shutter can be returned to a normal operable state. Even if the long switch or the passage recommendation notification unit deteriorates over time, the fire shutter can be returned to a normal operation state by replacing them alone.
[0057]
(6) Since the time that can be shifted to the partially open state is limited to the predetermined time that the timer 1 measures, the long switch mistakenly outputs an operation signal after the predetermined time has been measured due to high heat from a fire, etc. However, the fire prevention function required for the fire shutter is sufficiently exhibited without being partially opened.
[0058]
In the description of the above embodiment, an embodiment obtained by modifying a part of the embodiment is also referred to. However, a modified embodiment as exemplified below can be given.
[0059]
(1) In the above-described embodiment, an example is shown in which the presence of a person is monitored after the opening is completely closed. However, the presence of a person may be monitored even during the closing operation. For example, the presence of a person who has escaped may be monitored from the time when the open area that is not closed becomes a semi-closed state in which it is difficult for a person to pass through. Accordingly, it is possible to speed up the passage of a person who has reached the fire shutter position immediately before the fully closed state. When a person tries to pass by force when the opening area during closing operation is small, there is a risk that the person will be caught in the shutter, but this is the case when monitoring the presence of a person during closing operation. You can avoid this.
[0060]
Also, as a control method of the fire shutter, in the initial stage of the fire, it is closed so that the evacuee can see the evacuation route etc. even a little (the shutter is temporarily stopped there), then There is also a way to make it completely closed when the initial stage is over. The presence of a person may be monitored from the pause state during the closing operation described above..
The “fully closed state” in which the object detection means in the claims performs the detection operation (monitoring operation)PeopleIt is said that the object preliminarily assumed to pass through the opening is closed to such an extent that it cannot substantially pass through. That is, the “fully closed state” in which the object detection means performs the detection operation (monitoring operation) is not only the complete closed state, but also during the closing operation as described above, at the time of temporary stop during the closing operation, or slightly opened Including the largest closed state of the opening and closing body.
[0061]
In addition, in the expression “fully closed state by driving the opening / closing body” (including the case of returning to the “fully closed state”), the state during the closing operation is not included. To do.
[0062]
(2) In the above-described embodiment, the long switch detects the presence of an object such as a person who has escaped, but the present invention is not limited to this. For example, one or more so-called simple pressing switches may be provided on the shutter panel surface. Further, for example, among a plurality of sets of light emitting elements and light receiving elements, the light emitting elements are provided on one guide rail, and the light receiving elements are provided on the other guide rail, on the rear side of the light beam path between the corresponding light emitting elements and light receiving elements. The surface of the shutter panel that is positioned may be provided with a band-like color representing the contact position. Further, for example, a contactable area may be increased two-dimensionally by applying a band-like or plate-like switch (such as a touch panel).
[0063]
When a flat display device such as a liquid crystal display device is applied as the passage recommendation notification unit 6, a touch panel may be provided on the front surface as a means for detecting an object.
[0064]
Note that if the shutter is equipped with an open command switch for instructing to open electrically, the open command switch may also be used as a human presence detection means. In other words, when the release command switch is operated in the closed state that has been transferred due to the occurrence of a fire, it will not be fully opened, but will be partly opened for escape assistance, and then returned to the closed state, and an external notification of human presence detection will be given. You may make it do.
[0065]
(3) In the above embodiment, the long switch is provided only on one surface of the shutter panel surface. However, the long switch may be provided on both surfaces of the shutter panel surface. If the fire shutter is provided at a position where the direction of the evacuation route changes depending on the fire occurrence position, it is preferably provided on both sides. Even when a long switch is provided on only one surface of the shutter panel surface, the surface is not limited to the inner surface (the side on which a fire is expected), but the outer surface. May be. When a long switch is provided on the outer surface, a rescuer, a fire extinguisher, or the like can easily pass through the position of the fire shutter.
[0066]
(4) In the embodiment described above, only the notification operation for detecting the presence of a person is performed even when a predetermined time has elapsed from the time when the closed state is reached. However, the notification operation may not be performed. .
[0067]
(5) In the above embodiment, the transition to the partial open state is recognized only within a predetermined time from the time when the closed state is reached. However, the limitation on the predetermined time may be eliminated. Thereby, the passage function of the person who escaped late can be improved further. In this case, the normal operation of the long switch is performed based on whether or not the operation signals are simultaneously sent from the plurality of long switches, or based on the temperature information of the temperature sensor in the fire occurrence detection sensor. You may make it recognize and accept a partial open state.
[0068]
Moreover, in the said embodiment, although what showed the transition to a partial open state only within the predetermined time by the time-measurement of the timer 1 from the time of becoming a closed state was shown, it is a part from the time of becoming a closed state. The time for allowing the transition to the open state (the end of time) may be determined as follows. For example, the end of the time may be determined until the thermal fuse is cut at a high temperature due to a fire, or may be determined until a monitoring end signal is received from the outside.
[0069]
(6) In the above embodiment, the partial open state time is shown as the fixed time (timed time of the timer 2). However, the extension of the fixed time may be recognized. For example, when the long switch is operated in the partially opened state, the time of the timer 2 may be restarted from the beginning to extend the time in the partially opened state. In such a case, even when a large number of people arrive at the fire shutter simultaneously, all of them can pass through in a partially opened state.
[0070]
(7) In the above embodiment, the action of action when detecting a person (object) who is late to escape was a partially opened state for a predetermined time and a notification of human presence detection to the outside. Instead of this, or in addition to this, another measure operation may be performed. For example, it is possible to perform only a notification of object detection to the outside when an object is detected without performing any partial transition to the open state. Such a measure is suitable if the shutter is not preferable to be opened even a little. Further, for example, a notification operation of another evacuation route outside the building that does not pass through the fire shutter may be performed.
[0071]
(8) In the above-described embodiment, the passage recommendation notifying unit that advises the partial opening state and passage is shown. However, this may be omitted. For example, this may be fixedly described on the shutter surface.
[0072]
(9) In the above-described embodiment, the present invention is applied to a panel shutter of a type in which shutter panels are stacked. However, it goes without saying that the present invention can be applied to other types of fire-proof shutters. In the panel shutter, the closed state is formed by the stacking (cumulative) configuration of the shutter panels. Therefore, when shifting from the state to the partially open state, the shutter is moved upward from the upper shutter panel. Therefore, there may be a gap between the shutter panels in the partially open state. However, in the slat shutter that winds up the shutter curtain, etc., the shielding property of the part other than the open part in the lower part is also in the partially open state. It is expensive. In addition, there is a fire shutter that takes a multi-stage (for example, two stages) closed state according to the fire situation as described above, and the present invention is also effective for such a fire shutter. Can match the open state of any one of the multiple stages.
[0073]
【The invention's effect】
As described above, according to the present invention.Fire shutterAccording to the building openingShutter bodyWhen in the fully closed state,Contact detectionMonitor for the presence of objectsLong switchAnd at least thisLong switchIs fully closedcontactIt is equipped with escape assistance means that performs escape assistance action on the condition that it has been detected.Fire shutterIt is possible to assist so that an object that has reached the position of can avoid a situation that is troubled by the fully closed state.
[Brief description of the drawings]
FIG. 1 is a flowchart illustrating an operation of an embodiment.
FIG. 2 is a schematic perspective view of the embodiment.
FIG. 3 is a block diagram showing an electrical processing configuration of the embodiment.
FIG. 4 is an explanatory diagram of a connection method between the long switch and the like according to the embodiment and a control panel.
FIG. 5 is an explanatory diagram showing a partially opened state of the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Fire shutter, 3a-3n ... Shutter panel, 5b, 5c ... Long switch, 6 ... Passing recommendation alerting | reporting part, 7 ... Opening part opening-closing drive part, 11a, 11b ... Fire occurrence detection sensor, 12 ... Person presence detection Notification unit, 20 ... control panel, 24 ... timing unit, 25 ... switch input unit, 26 ... sensor input unit, 28 ... control unit.

Claims (6)

Shutter body that can be opened and closed to move down and close the building opening, opening-and-closing body driving means that drives the shutter body , and the opening of the building opening that has been opened by the detection of a fire is fully closed by the shutter body A fire shutter having closed activation means for generating a command to
A first timer for measuring a first predetermined time after the shutter main body is in a fully closed state by a closing operation by detecting the occurrence of the fire;
When the building opening extends in the width direction of the building opening, and the building opening is in a fully closed state by the shutter body, it is provided at a position of the shutter body that is highly likely to be touched unconsciously by humans. A long switch for touch detection,
A second timer for measuring a second predetermined time shorter than the first predetermined time ;
When the long switch is operated before the first timer expires, the shutter body is moved up by a predetermined amount to partially open the building opening, and this partial An escape assisting means for maintaining the open state during the timekeeping operation of the second timer and returning to the fully closed state after the timekeeping operation is completed ;
After the first timer expires, when the long switch is operated, a first notification that notifies the outside that the long switch has been operated without operating the shutter body fire shutter, characterized in that it comprises a <br/> and means. The second timer restarts counting the second predetermined time from the beginning when the long switch is operated before the second predetermined time during the time-up, and the escape assisting means The fire shutter according to claim 1, wherein a partially opened state is extended. 3. The apparatus according to claim 1, further comprising second notification means for notifying the outside when the long switch is operated before the first timer expires. Fire shutter as described. The fire prevention shutter according to any one of claims 1 to 3, further comprising contact guidance notification means for notifying information for prompting contact with the long switch. By the escape assistance means, wherein the building opening was made in a partially open state, in any one of claims 1 to 4, further comprising a passage recommendation informing means for informing the information prompting to pass Fire shutter. The fire shutter according to claim 1, wherein the long switch is replaceable .

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