JPH09287371A - Open-close body device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To open and close an open-close body safely by detecting a high temperature in a fire, etc., at an early stage by a simple constitution, and to avoid bringing to an unstable state of opening and closing extremely even when the state at a high temperature is brought by the fire, etc. SOLUTION: A temperature detector 41 detecting a temperature at the time of a fire is mounted to the inside of the lintel of a shutter case and near to an opening section thereof. The temperature detector 41 is connected in series with the opening-side circuit 11 of a control means 10 through heat-resistant wirings 40. When the temperature detector 41 detects a set fixed temperature by the fire, etc., a relay contact is opened, and the electrically driven lifting of a shutter is limited. Accordingly, the shutter can be opened and closed safely at the time of the fire, and the open-close body device contributes to the prevention of the spread of the fire.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing device for opening / closing an opening / closing member such as a shutter or a door, and more particularly to an opening / closing device capable of more safely controlling opening / closing of the opening / closing member in case of fire.

[0002]

2. Description of the Related Art Opening and closing bodies such as shutters and doors for raising and lowering an opening partition the inside and the outside by closing. A shutter or a fireproof door specially designed for fireproofing at the time of fire has a predetermined fireproofing performance because the slats and doors are formed thick according to fireproofing standards. On the other hand, a general shutter is for crime prevention and partitioning, and is not installed for the purpose of forming a fireproof section against fire, but in the unlikely event of a fire, this shutter is not used temporarily. However, it may play a role of forming the fireproof section.

[0003]

In the case of a general electric shutter, control means for driving an opening / closing device to control opening / closing of the shutter curtain is provided. The control means of this electric shutter is not configured to have a temperature specification range up to an extremely high temperature range that occurs when a fire occurs.

When a fire occurs, the control means is heated to a high temperature, and when the circuit is melted or burned to cause a short circuit or a ground fault in the inside or predetermined wiring, the shutter is operated externally. It is unavoidable that opening and closing of the shutter cannot be controlled and the opening and closing of the shutter will be in an indefinite state. However, even with this general electric shutter, it is desirable to be able to prevent the opening / closing control from becoming indefinite as much as possible in the event of a fire.

In the above description, the shutter has been described as being closed and controlled to form a fireproof compartment in the event of a fire, but on the contrary, for the purpose of evacuating the inside person to the outside or for extinguishing a fire. Sometimes I want to control the opening of the shutter. Further, there are cases where it is desired to manually open / close a shutter that requires opening / closing control or to hold the shutter in a midway position without controlling the closing / opening of the shutter immediately when a fire occurs. In each of the different opening / closing controls (operations), different opening / closing controls (operations) are actually performed for each shutter depending on the installation position of the shutter and the fire occurrence position / flame spread degree.

Since the time from the notification of a fire occurrence to the arrival of the fire brigade is usually 5 to 20 minutes, the countermeasure for the above request is to take measures when the flame of the fire directly approaches the predetermined shutter. (Or when the shutter becomes hot), it can be detected early and the shutter can be opened / closed in a safer direction as soon as the fireproof area is formed. Even so (even if the worst control means or the like is burnt out), it is possible to avoid the indefinite state of opening and closing the shutter as much as possible until the above-mentioned fire brigade arrives.

The switch is provided with a temperature detector for detecting the temperature of the switch itself, and the switch is stopped when the temperature exceeds a predetermined temperature. The main purpose is to prevent damage to the switchgear due to opening and closing operations, etc., and it is not possible to deal with the above-mentioned fire occurrence.

The present invention has been made in view of the above-mentioned problems, and it is possible to open and close the opening and closing body more safely by early detection of a high temperature due to a fire or the like with a simple structure, and to prevent a high temperature due to a fire or the like. It is an object of the present invention to provide an opening / closing device that can avoid opening / closing in an indefinite state as much as possible even in a temperature state.

[0009]

In order to achieve the above object, an opening / closing body device of the present invention is provided near the opening / closing body,
Temperature detection body 41 that detects when a predetermined temperature is reached
And a control means 10 for driving and controlling a switch M for opening and closing the opening / closing body and limiting either opening / closing of the opening / closing body M when the temperature detecting body 41 detects a predetermined temperature.
And characterized in that:

Further, the temperature detecting body 41 is provided in series with the open side circuit 11 of the opening / closing body in the control means 10, and the contacts open when the predetermined temperature is reached,
The opening / closing body M may be restricted from being opened.

Further, a heat resistant wiring 40 may be used as a connecting line from the temperature detecting body 41 to the control means 10.

Further, the control means 10 may have a notifying section 73 for notifying the outside of an alarm corresponding to the detection of the predetermined temperature by the temperature detecting body 41.

The temperature detector 41 includes an initial temperature detector 66 for detecting a relatively low initial temperature and a high temperature detector 69 for detecting a temperature higher than the temperature detected by the initial temperature detector 66. The control means 10 is configured.
Is a configuration for performing a determination process as to whether execution / return of the opening / closing restriction for the opening / closing body is performed based on a temperature change after being detected by the initial temperature detecting body 66 and before being detected by the high temperature detecting body 69. Good.

Further, the control means 10 starts the time measurement in response to the detection of the initial temperature and the initial temperature detection means 62 for notifying the outside that the detection by the initial temperature detection body 66 is made. When the temperature detected by the initial temperature detector falls to a temperature lower than the initial temperature before the time is up, the timer unit 63 resets the time and returns to the initial temperature detection state, and the timer unit 63 The high temperature detecting means 66 may be configured to limit the opening / closing of the opening / closing body when a high temperature is detected by the high temperature detecting body 66 during the period.

Further, the temperature detector 41 may be constructed so as to detect the temperature in the case in which the switch M, the control means 10 for driving the switch M to open and close, and the like are housed.

Further, the opening / closing body is composed of a shutter 50 composed of a plurality of slats, and the temperature detecting body 41 is provided.
May be provided inside the lintel 51a of the shutter case 51 and near the opening surface.

Further, the connection line from the temperature detection body 41 to the control means 10 may be separated from the shutter case 51.

The control means 10 may be housed inside a shutter case 51, and housed in a housing case provided at a predetermined distance from the shutter case 51.

Further, the opening / closing body apparatus of the present invention has a temperature fuse 44a which is provided in the vicinity of the opening / closing body and melts when a predetermined temperature is reached, and supplies a power line AC to the control means 10 for opening / closing the opening / closing body. Shut-off means 4 for shutting off the primary side of
4 is provided.

An emergency power source 45 connected to the secondary power line AC of the shutoff means 44 and used as a power source after the primary power source is shut off by the shutoff means 44, and the emergency power source 45 to the control means 10. And an emergency power switch 46 for supplying.

Temperature detector 41 provided near the opening / closing body
Is detected when a predetermined temperature is reached due to a fire or the like, and in response to this, the control circuit 10 limits either opening / closing of the preset opening / closing body. For example, when the opening and closing of the opening and closing body is set to be restricted, when the occurrence of a fire is detected, the opening and closing body is not electrically controlled in the opening direction, and the spread of fire can be suppressed as much as possible. On the other hand, when the setting is made to limit the closing of the opening / closing body, when the occurrence of a fire is detected, the opening / closing body is not electrically controlled in the closing direction, and the evacuation and fire extinguishing of a person can be prioritized. These can be set in advance, and the opening / closing in the restricted direction can be arbitrarily performed manually. When the opening / closing body is a shutter, the temperature detecting body 41 is provided inside the lintel 51a and in the vicinity of the opening surface, whereby the temperature change can be detected sensitively.

[0022]

FIG. 1 is a circuit diagram showing an embodiment of the present invention. In this embodiment, a configuration in which a shutter as an opening / closing member is controlled to open and close up and down will be described as an example. A control means 10 is shown in the figure, and an opening / closing device M for opening / closing a shutter and a brake BC are connected to a power supply line AC via relay contacts OM, CM for forward rotation and reverse rotation. The control means 10 has an open side circuit 11 connected to the power supply line AC and a close side circuit 12, and moves the shutter up and down via the opening / closing device M by operating the operation switch PBS. The opening circuit 11 includes a lift push button switch 30 and a release relay 3 in series with the push button switch 30.
It consists of 1. The closing circuit 12 includes a push button switch 32 for lowering and a closing relay 33 in series with the push button switch 32.

A push button switch 36 for stopping the normally closed contact is also provided.
The open side circuit and the close side circuit 11, 12 are respectively connected in parallel to the open and close relays 31, 33 via an open self-holding relay contact 34 and a close self-holding relay contact 35, respectively. Are connected. Then, when the push button switch 30 for raising is pressed down, the self-holding relay contact 34 is closed, the opening relay 31 is energized, the forward rotation relay contact OM is closed, and the opening M is supplied with the power supply for opening. Supplied.

Thereafter, even if the push button switch 30 for raising is released, the opening relay 31 is continuously energized through the self-holding relay contact 34, the switch M is continuously driven, and the shutter is opened. It has become so. When the shutter reaches the upper limit position, the opening relay 3 of the opening side circuit 11
1, the upper limit switch 37 in series is opened, the opening relay 31 is turned off, and the forward rotation relay contact O
M opens and the switch M stops at the upper limit position.

The shutter lowering operation is similar to the opening operation described above, and the closing relay 3 is operated via the self-holding relay contact 35 by operating the lowering push button switch 32.
The self-holding operation for 3 is performed, and the shutter continuously descends until the lower limit switch 38 is opened. When the stop push button switch 36 is operated in the middle of ascending and descending, the opening relay 31 or the closing relay 33 is de-energized and the switch M is stopped.

In the opening side circuit 11, the opening relay 3
1 and the upper limit switch 37, a temperature detector 41 is provided via a heat resistant wiring 40. As the heat-resistant wiring 40, an aluminum polyester tape or a wire material shielded by a copper tape or the like that is hard to be melted and burned by a fire is used. The temperature detector 41 has a normally-closed contact that opens when a predetermined high temperature (for example, an arbitrary temperature set from 100 to 300 ° C.) is reached assuming a fire, and a thermostat or the like is used.

2A and 2B are a front sectional view and a side sectional view showing the shutter provided with the temperature detecting body 41. Shutter curtain (slat) 5 as shown
0 moves up and down the opening by the opening / closing device M in the shutter case 51 provided in the upper part. Also, the control means 1
0 controls the switch M. The control means 10 is provided inside the storage case using a heat insulating material as necessary for the purpose of preventing dust and the like and separated from the shutter case 51 by a predetermined amount. As a result, even if the temperature of the shutter case 51 rises during a fire, the temperature rise inside the control means 10 can be moderated.

The temperature detector 41 is provided inside the shutter case 51 in which the switches and the control means 10 for driving the switches M to open and close are housed. The temperature detector 41 is provided inside the shutter case 51, for example, near the control means 10 or inside the lintel 51a (inside the shutter case 51) and near the opening surface (the portion where the shutter moves up and down). it can. In this case, the heat-resistant wiring 40 is connected to the control means 10.

Here, the temperature detector 41 is the above-mentioned lintel 51.
If it is placed either inside (a) and close to the opening surface (position on the indoor side shown by the solid line in the figure) or on the opposite side (dotted line in the figure) on the outside, the temperature rise becomes sensitive as described later. Can be detected. Further, if the positions are the same, the width direction of the shutter case 51 (horizontal direction in FIG. 7A)
You may move and arrange it. However, the temperature detector 41
The arrangement position is not limited to the above position, and may be determined in consideration of the characteristics of the shutter itself or the installation place, for example, inside the shutter case 51, inside the guide rail, or the like. Furthermore, if the position of the temperature detection body that detects the temperature of the switch is a position that can sensitively detect the occurrence of an external fire, and the temperature detection body can detect a high temperature corresponding to the fire, It is also possible to use this.

By the way, the control means 10 and the heat-resistant wiring 40 are arranged apart from the shutter case 51. Specifically, it is suspended so as not to come into direct contact with the shutter case 51. At this time, the shutter case 51
It is better not to touch the underside of. This makes it difficult for the heat of the shutter case 51 to be conducted to the control means 10 and the heat-resistant wiring 40 when a fire occurs, and as a result, the temperature detected by the temperature detection body 41 is less likely to melt or break in the control means 10. The chances of getting it right increase.

According to the above construction, when the temperature of the shutter case 51 rises due to a flame approaching the shutter or the like during a fire, this temperature rise is detected by the temperature detector 41, and when the temperature reaches a predetermined temperature, the contact is made. open. The control means 10 and the heat-resistant wiring 40 are connected to the shutter case 51.
Since it is arranged away from the control means 10, the control means 10 is in the specified temperature range and is in a state where predetermined control can be performed. Also,
It is very unlikely that the heat-resistant wiring 40 will burn out. When the contact of the temperature detector 41 is opened, the opening relay 31 of the opening side circuit 11 of the control means 10 is de-energized, and the forward rotation relay contact OM is held in the opened state.

As described above, since it is possible to immediately limit the opening of the shutter by detecting the temperature rise at the time of fire, even if the operation switch PBS exposed to the outside and the wiring to the PBS are short-circuited by heat or flame. However, since the shutter is not opened electrically, it can be expected to prevent the spread of fire. As described above, by providing the temperature detection body 41 in series with the opening side circuit 11, it is possible to prevent the shutter from being opened in the event of a fire. The shutter can be raised manually in this restricted state. In this restricted state, the shutter can be raised manually by using a handle or a chain which is well known in the art.

Next, FIG. 3 is a circuit diagram showing another embodiment of the present invention. In the figure, the control means 10
Has the same configuration as that of the above-described embodiment, and the same components are designated by the same reference numerals and description thereof will be omitted. Control means 10
A disconnecting means (knife switch with temperature fuse) 44 having a temperature fuse 44a is provided on the primary side of the power supply line AC supplied to the. The temperature fuse-equipped knife switch 44 is inside the shutter case 51, inside the lintel where the shutter curtain 50 moves up and down, and like the temperature detector 41 shown in FIGS. 2A and 2B. The fuse is provided near the surface and blows out when the temperature rises to a predetermined level in case of fire. Also, 4
4b is a fuse for shutting off overcurrent.

An emergency power supply 45 is connected to the secondary side of the knife switch with temperature fuse 44 through a wiring 47, and an emergency switch 46 is provided between the power supply line AC and the emergency power supply 45. It is provided. These emergency power supply 45
The emergency switch 46 and the emergency switch 46 are led out by a wire 47 from a place where the shutter is installed to a place slightly away from the shutter, so that the shutter can be supplied with emergency power for a predetermined time unless it is burnt out in the event of a fire. Is assumed. Normally, the emergency switch 46 is switched to the open side, and the control means 10 and the switch M are connected to the power line A.
It is driven by the C power supply.

According to the above construction, when the temperature of the shutter case 51 rises due to a flame approaching the shutter or the like during a fire, the temperature fuse 44a of the knife switch with temperature fuse 44 is blown. Therefore, the opening relay 31 of the opening side circuit 11 of the control means 10 is de-energized,
The forward rotation relay contact OM is held in an open state.

Since the temperature rise at the time of fire is detected and the power supply to the shutter is cut off, the shutter does not operate in the opening direction. However, when it is desired to open the shutter to extinguish a fire or to evacuate a person, the emergency power supply 45 is operated to operate the switch M by the emergency power supply 45 to open the shutter. When the power supply line AC is restored and can be used, the emergency power supply switch 46 is opened to cut off the power supply from the emergency power supply 45.

As described above, when the temperature rise due to a fire or the like is detected and the shutter power supply is shut off and the shutter is opened and closed by the emergency power supply, it is possible to properly take measures after the fire. Like

Next, another embodiment of the present invention will be described. In this embodiment as well, the same control means 10 as in the above embodiment is used to control the opening and closing of the shutter. In this embodiment, the fire detection means 6 shown in the circuit diagram of FIG. 4 is provided inside the control means 10 for opening and closing the shutter.
0 is provided. The fire detecting means 60 is operated by a battery and a charging circuit, or a power source 61 such as an AC power source. An initial temperature detecting means 62, a timer means 63, and a high temperature detecting means 64 are connected in parallel to the power source 61.

The initial temperature detecting means 62 includes a temperature detecting body 66 for detecting the initial temperature, a switch section 67, and a first relay 68.
(RY1) are connected in series. Initial temperature detector 66
Is a normally-closed contact, and the contact is opened when the temperature reaches a predetermined temperature (for example, 100 ° C.) in the early stage of a fire, and is constituted by a thermostat similar to the temperature detector 41, for example. The initial temperature detector 66 is provided at an appropriate position on the shutter case 51 via the heat-resistant wiring 66a, like the temperature detector 41 described in the above embodiment. The switch unit 67 includes a first relay contact Ry1-1 and a timer contact t.
And a set button. The first relay 68 switches between the plurality of first relay contact groups Ry1 by energization.

The timer means 63 has a first relay contact Ry1.
-2 (normally closed contact), a second relay contact Ry2-2, and a timer relay T. The timer relay T counts a predetermined time (for example, 5 minutes) when energized, and closes the timer contact t when counting up. The count is cleared when the energization is cut off within a predetermined time, and the counting is started again by the energization thereafter.

The high temperature detecting means 64 includes a high temperature detecting body 69 for detecting a high temperature, a switch section 70, and a second relay 72.
(RY2) are connected in series. High temperature detector 69
Is a normally-closed contact, and the contact is opened when the temperature reaches a high predetermined temperature (for example, 150 ° C.) that indicates a fire. For example, a thermostat similar to the initial temperature detector 66 with a different detection temperature is used. The high temperature detection body 69 is provided at the same installation position as the temperature detection body 41 described in the above embodiment, such as the side portion of the initial temperature detection body 66 via the heat resistant wiring 69a. The switch unit 70 includes a second relay contact Ry2-1 and a set button. The second relay 72 switches the plurality of second relay contact groups Ry2 by energization.

Initial temperature notification unit 73, high temperature notification unit 74
When the relay contacts Ry1-3 and Ry2-3 are opened after the reset, the corresponding means informs of the occurrence of fire, and provides two-stage notification of the initial temperature and the high temperature. The normally open relay contacts Ry2-4 are provided in series with the open circuit 11 of the control means 10. That is, this relay contact Ry2-4 is
It is connected through the heat-resistant wiring 40 of FIG. 1 described in the above-described embodiment, and the contacts are opened to limit the rise of the shutter at the time of fire.

The operation of the above configuration will be described. FIG. 5 is a flowchart showing the processing operation of the above configuration. When the set button is pressed in the normal state, the initial temperature detecting means 6
2. The high temperature detecting means 64 is the temperature detecting sensor 6
Since both 6 and 69 are closed, the first relay 68 and the second relay 72 are both energized, and the first relay contact Ry1-
1, the second relay contact Ry2-1 is closed, and this energized state is self-maintained. Further, Ry1-3 are closed and the initial temperature notification unit 73 is reset. Further, RY1-2 is opened and the timer means 63 is in a standby state.

When the initial temperature detector 66 detects this initial temperature due to the occurrence of a fire (SP1), the contact opens, the first relay 68 becomes non-conductive, and the first relay contact group Ry1.
Switches. That is, the first relay contacts Ry1-1, Ry1
-3 opens and Ry1-2 closes (SP2). Based on the opening of the first relay contacts Ry1-3, the initial temperature reporting unit 73 reports that it is the initial stage of fire occurrence (SP3). Specifically, it sounds an alarm buzzer, lights an indicator light, and outputs an alarm to the central control room. By this notification, fire extinguishing work etc. in the initial stage is urged against the fire.

By the way, when the first relay 68 is de-energized, the first relay contacts Ry1-2 of the timer means 63 are closed, and the timer relay T starts energizing to start counting for a predetermined time (for example, 5 minutes). Close t. The count time set in this timer relay T is
It corresponds to the period for removing temporary special factors other than fire, such as the sun shining. That is, when the high temperature is not detected by the count up (SP4) and the temperature of the fire falls below the initial temperature (SP5), the initial temperature detector 66 returns again and closes. If the fire is extinguished due to extinguishing or the like within the period up to, the initial temperature detecting means 62 is reset (SP6), and the initial temperature detecting means 62 returns to detect whether or not the initial temperature has been reached.

However, when the fire continues unabated and continues, the temperature becomes higher. In this case, the high temperature detector 69 of the high temperature detector 64 opens when the high temperature exceeds the initial temperature, so that the second relay 72 is turned off (SP7). The high temperature notification unit 74 notifies that the fire has reached a high temperature based on the opening of the second relay contact Ry2-3 (SP8). Specifically, a notification different from that in the initial stage is performed, for example, an alarm buzzer sounds, an indicator light is turned on, and an alarm is output to the central control room. This notification output prompts full-scale fire extinguishing work for a fire. The initial temperature notification unit 73 and the high temperature notification unit 74 are provided on the shutter or on the side of the central control room of the shutter and can be monitored remotely.

Further, when the second relay 72 is de-energized, the normally open second relay contact Ry2-4 is opened, so that the open circuit 11 of the control means 10 is opened to limit the rise of the shutter. (SP9). In this way, after the high temperature detecting means 64 has once detected the high temperature, the alarm is continuously output and the rise of the shutter is restricted.
The shutter can be raised manually in this restricted state.

As described above, when a fire occurs, it is detected by the initial temperature detecting means 62 and then detected by the high temperature detecting means 64 when the fire is not extinguished.
If the temperature declines due to fire extinguishing after the detection by the initial temperature detection means 62, the high temperature detection means 64 does not detect it. When this state continues for a predetermined time, the timer means 63 returns to the initial temperature detection state.

On the other hand, once the high temperature detecting means 64 detects the high temperature, the high temperature notification is continuously output,
In addition, the shutter is restricted from rising. The continuous state of the notification and the release limited state can be released only by operating the restoration signal (SP10). That is, the fire detecting means 60 can be restored to the initial state by operating the set buttons of the initial temperature detecting means 62 and the high temperature detecting means 64.

In the above description, when the temperature of the fire does not rise after the initial temperature is detected and / or the temperature of the fire decreases, the recovery is performed based on the time count in the timer means 63. A temperature measurement unit that continuously measures the temperature is provided, and when the measurement result of this temperature measurement unit exceeds the initial temperature but does not reach a high temperature and the temperature drops below this initial temperature, the initial temperature is immediately measured. It may be configured to return to the detection state. In addition, a temperature change detection unit for detecting a temperature change is provided, and based on the degree of temperature change detected by the temperature change detection unit, when the degree of temperature change sharply rises, a high temperature notification output is made. You can also Even with this configuration, when the temperature drops to the predetermined temperature, the initial temperature detection state is restored.

According to the above construction, even if the fire detection means 60 is burned by a fire, the relay output Ry2-3 once opens and the high temperature notification section 74 outputs that the high temperature has been detected. Even if the 2 relay 72 is burnt out, the high temperature notification unit 74 can continue to maintain this state.
Similarly, with respect to the relay output Ry2-4, the open circuit 11 is opened by the high temperature detection. Therefore, even if the second relay 72 is burned out thereafter, the open circuit 11 can limit the rise. Also,
The alarm on the side of the central control room is also retained and output.

By the way, the fire detection means 60 in the control means 10 is composed of a combination circuit of a relay and a relay contact, but in addition to this, the opening / closing control of the opening / closing body by the control means 10 and each of the fire detection means 60. Means 62, 63, 6
The configuration of fire detection by No. 4 may be configured by a combination of hardware such as a CPU and a memory, and software that executes the processing steps shown in FIG. 5, and similarly to the above, notification at the time of fire detection and shutter rise restriction. It can be performed.

Although the above-mentioned structure is such that the temperature of the fire is detected in two stages of the initial temperature and the high temperature, only one of them may be detected. Only the initial temperature detection unit 62 may be provided to detect and report the initial temperature, and only the high temperature detection unit 64 may be provided to detect and report the high temperature.

In each of the above-described embodiments, the configuration has been described in which the rise of the shutter is limited during a fire. However, this is a setting for limiting the electric rise of the shutter in advance during a fire to form a fireproof section (for example, opening. Side circuit 11
The temperature detecting body 41 is arranged in series with the above). However, in the event of a fire, the shutter can be opened to give priority to the evacuation and fire extinguishing of people. In this case, the temperature detecting body 41 may be arranged in series with the closing side circuit 12 in order to limit the lowering of the shutter.

As described above, the rise / fall of the shutter opening / closing operation can be restricted in advance in the event of a fire, and this can be done only by providing a similar configuration in the open side circuit 11 or the close side circuit 12. It should be noted that the shutter is restricted from being opened / closed electrically, and the shutter can be manually opened / closed when the shutter is restricted. In each of the above-described embodiments, the example of the shutter that moves up and down is used as the opening / closing body, but another opening / closing body is, for example, a door that opens and closes electrically. This door is different in that it opens and closes horizontally, but similarly by applying each of the configurations described in the above-described embodiments, it is possible to similarly perform the open / close restriction control at high temperatures.

[0056]

EXAMPLE FIG. 6 shows experimental data when a simulated fire experiment was conducted. The horizontal axis represents time (minutes) and the vertical axis represents temperature (° C). In the experiment, as shown in FIG. 2B, the kerosene pan P0 was placed directly below the shutter case, and the temperature rise of each part was measured when the ignition state was set for about 4 minutes. As shown in the figure, the temperature of the portion B located on the kerosene pan P0 and the temperature of the outside A of the lintel 51a of the shutter case 51 rapidly rises to a high temperature in a short time, whereas the temperature of the shutter case 51 The control means 10 provided in the internal position D remains in the low temperature range, and the temperature rise is slow.
And the position C inside the lintel and near the opening surface is
Although the temperature does not rise rapidly to a high temperature as much as A and B (low temperature range), the temperature rise follows these A and B.

That is, by experiment, the shutter case 51
On the other hand, when the temperature detecting body 41 and the like are arranged inside the lintel and close to the opening surface, the temperature change of the absolute value does not increase as much as A and B, and the temperature change can be detected sensitively. There was found. The temperature detection body 41 and the like arranged at this position can output the detected temperature to the control means 10 without being damaged because it is not exposed to high temperature. Therefore, the temperature detector 4 described in the above embodiments of the present invention
1, the knife switch with temperature fuse 44, the initial temperature detector 66, and the high temperature detector 69 are all inside the shutter case 51, inside the lintel where the shutter curtain 50 moves up and down, and close to the opening surface. By providing it at the position C, it becomes possible to sensitively detect the temperature change at the time of the fire.

At the same time, it was found that the control means 10 provided at the internal position D of the shutter case 51 was within the operating specification temperature range even in the early stage of the fire, and effective control could be performed in the early stage of the fire. . This is an internal position D apart from the surface of the shutter case 51 exposed to the outside.
It can be seen that it is effective to provide the control means 10 in the.

Arrangement control means 10 described in the above embodiment
On the other hand, if it is configured to be housed in a housing case different from the shutter case 51, it is possible to further suppress the temperature rise as compared with the above experimental result. Further, the experiments in the above examples were performed outdoors, but even when a fire flame occurs indoors, it is considered that the way heat is transmitted to the shutter at the time of a fire is not much different from the case outdoors. Providing the temperature detector at the position C inside the lintel and near the opening surface is still an effective arrangement position.

[0060]

According to the opening / closing body apparatus of the present invention, when the temperature detecting body provided near the opening / closing body detects a predetermined temperature,
By configuring the control means to limit the opening / closing of the opening / closing body, it becomes possible to perform safer control of the opening / closing operation of the opening / closing body at an early stage when an abnormal temperature is detected such as a fire. . In addition, if the configuration is such that an alarm is issued from the alerting unit as well as the opening and closing of the opening / closing member, it is possible to give an alert to the outside immediately after a fire occurs. further,
If the temperature is set to two stages, a relatively low initial temperature and a high temperature, the opening / closing is not restricted immediately by the initial temperature, but is restricted at the time when the high temperature is detected and opening / closing control is required in earnest. By doing so, it becomes possible to more realistically open and close, and it becomes possible to achieve more safety in both fire prevention and / or evacuation and extinguishing of people.

Further, if the temperature detecting body is provided inside the lintel of the shutter case and close to the opening surface, it becomes possible to detect the temperature rise at the time of fire more sensitively and to detect the fire early, It becomes possible to immediately restrict the opening and closing of the electric shutter while the temperature is within the operating specification temperature range of the control means. The direction in which the electric opening / closing of the opening / closing body is restricted can be set in advance, and either the prevention of fire spread and / or the evacuation of people and the extinguishing of fire can be prioritized. It should be noted that the opening / closing body can be opened and closed manually without these limitations.

Further, by providing the shut-off means at an intermediate position of the power supply line, it is possible to restrict the opening and closing by electric power with a simple structure in which the temperature fuse is melted when a fire occurs. After that, if the power supply can be opened and closed by an emergency power source provided on the secondary side of the shutoff means, the spread of fire can be prevented.
Or, it becomes possible to adapt to both contradictory situations of evacuation and fire extinguishing of people, and more safety can be achieved.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an embodiment of an opening / closing body device of the present invention.

2A and 2B are a front sectional view and a side sectional view showing the same device.

FIG. 3 is a circuit diagram showing another embodiment of the present invention.

FIG. 4 is a circuit diagram showing fire detection means according to another embodiment of the present invention.

FIG. 5 is a flowchart showing the operation of the fire detecting means.

FIG. 6 is data of a simulated fire experiment.

[Explanation of symbols]

10 ... Control means, 11 ... Open side circuit, 12 ... Closing side circuit, 31 ... Opening relay, 33 ... Closing relay, 40,
66a, 69a ... Heat resistant wiring, 41 ... Temperature detector, 44
… Knife switch with temperature fuse, 45… Emergency power supply, 4
6 ... Emergency power switch, 50 ... Shutter curtain, 51
... shutter case, 51a ... lintel, 60 ... fire detection means, 61 ... power supply, 62 ... initial temperature detection means, 63 ... timer means, 64 ... high temperature detection means, 66 ... initial temperature detection body, 69 ... high temperature detection Body, 68 ... First relay, 72 ...
2nd relay, 73 ... Initial temperature alerting | reporting part, 74 ... High temperature alerting | reporting part, Ry1 ... 1st relay contact group, Ry2 ... 2nd relay contact group, PBS ... Operation switch.

Claims (12)

[Claims] 1. A temperature detection body which is provided in the vicinity of the opening / closing body and detects when a predetermined temperature is reached, and a switch which opens and closes the opening / closing body are drive-controlled so that the temperature detection body detects a predetermined temperature. And a control means for restricting either opening or closing of the opening / closing body when the opening / closing body is opened. 2. The temperature detector is provided in series with an opening side circuit of the opening / closing body in the control means, and the opening of the opening / closing body is restricted by opening a contact when the predetermined temperature is reached. The opening / closing body device according to claim 1. 3. The opening / closing body apparatus according to claim 1, wherein heat resistant wiring is used as a connecting line from the temperature detecting body to the control means. 4. The opening / closing body apparatus according to claim 1, wherein said control means has a notifying part for notifying an outside of an alarm corresponding to a predetermined temperature detected by said temperature detecting body. 5. The temperature detector comprises an initial temperature detector for detecting a relatively low initial temperature and a high temperature detector for detecting a temperature higher than the temperature detected by the initial temperature detector. The control means determines whether to execute or restore the restriction of opening / closing of the opening / closing body based on a temperature change after being detected by the high temperature detecting body after being detected by the initial temperature detecting body. The opening / closing device according to claim 1. 6. The initial temperature detection means for notifying externally that the initial temperature detection body has detected, and the control means starts timekeeping in response to the detection of the initial temperature and time-up. When the temperature detected by the initial temperature detector drops to a temperature lower than the initial temperature, the timer means for resetting the time and returning to the initial temperature detection state, and the high temperature during the time period measured by the timer means. The opening / closing body apparatus according to claim 1, further comprising: a high temperature detecting means for restricting the opening / closing of the opening / closing body when a high temperature is detected by the detection body. 7. The opening / closing body apparatus according to claim 1, wherein the temperature detecting body is configured to detect a temperature inside a case in which the opening / closing machine, a control means for opening / closing the opening / closing machine, and the like are housed. 8. The opening / closing body apparatus according to claim 1, wherein the opening / closing body includes a shutter including a plurality of slats, and the temperature detecting body is provided inside the lintel of the shutter case and in the vicinity of the opening surface. . 9. The opening / closing body apparatus according to claim 8, wherein a connection line from the temperature detecting body to the control means is wired apart from the shutter case. 10. The opening / closing body apparatus according to claim 9, wherein the control means is housed inside a shutter case, and is housed in a housing case provided at a position separated from the shutter case by a predetermined amount. 11. A shutoff means provided near the opening / closing body, having a temperature fuse that melts when a predetermined temperature is reached, and capable of shutting off the primary side of a power supply line supplied to a control means for opening / closing the opening / closing body. An opening / closing body device characterized by being provided. 12. An emergency power source connected to the secondary power supply line of the breaking means and used as a power source after the primary power source is cut off by the breaking means, and an emergency power source for supplying the emergency power source to the control means. The switch device according to claim 11, further comprising a switch.