Thermal fuse type sensing device, fire prevention equipment control system, fire prevention signal transmission method, and fire prevention compartment formation device

Abstract

To output an electrical sensing signal using a thermal fuse.SOLUTION: A thermal fuse 107 blows under a certain condition. A cosmetic cover 104, a reset lever 106, etc. are provided as movable means that is mechanically moved by the blowing of the thermal fuse 107. Switching means (a microswitch 112) is provided to change a setting state to on state or off state in conjunction with the movement of the movable means. By electrically detecting the on state or off state of the switching means, the blown thermal fuse 107 can be detected as an electrical signal. A thermal fuse type sensing device will output an electrical sensing signal when the thermal fuse blows. This thermal fuse type sensing device is used to configure a fire protection equipment control system, a fire prevention signal transmission method, and a fire compartment forming device.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a fire protection equipment control system and a fire protection signal transmission method that automatically closes passageways and halls inside buildings using shielding members such as fire doors, sliding doors, and fire shutters in the form of sheets, shutters, screens, slats or panels, fireproof cloth, etc. to separate openings in entrances and exits of buildings such as buildings, factories and warehouses, large rooms, passageways and halls, or openings in structures such as underground shopping malls and multi-story parking facilities, and in particular to a temperature fuse-type sensing device, a fire protection equipment control system, a fire protection signal transmission method and a fire protection compartment forming device that are configured to reliably perform the automatic closing operation of the shielding members in the event of an emergency. [Background technology]

[0002] In general, in the corridors and other areas inside buildings with large floor areas, fire protection equipment control systems are installed that use fire protection equipment (fire protection equipment such as fire protection shutters and fire protection doors) that operate to form a three-dimensionally enclosed space, i.e. a fire compartment, together with pillars, walls, ceilings, floors, etc., using shielding members such as fire protection shutters and fire protection doors that automatically close as soon as a fire breaks out to prevent the spread of fire and smoke.

[0003] In conventional fire prevention equipment control systems, when demand-closing fire doors or fire shutters are used in fire compartments of buildings, a temperature fuse is used to keep the fire doors or fire shutters open under normal circumstances, and in the event of a fire, the heat from the fire melts the temperature fuse, releasing the fire door or fire shutter from the temperature fuse and releasing the hold, causing the fire door to close automatically or fire shutters such as shutter curtains to fall under their own weight.

[0004] However, if fire doors or fire shutters equipped with temperature fuse devices are used in vertical compartments or compartments for different uses, smoke generated by a fire may spread to stairwells, atriums, elevator shafts, and escalators before the temperature fuse activates, causing people evacuating to inhale harmful smoke and hindering evacuation. Therefore, currently, detection means such as smoke detectors are used.

[0005] Fire doors and fire shutters installed in existing buildings have their thermal fuses replaced with smoke detectors, and smoke detectors, repeaters, harm prevention interlocking repeaters (fire shutters only), and automatic closing devices are installed, and these devices are connected and controlled by electrical wires to transmit signals within the building. Patent Document 1 describes a configuration in which a single repeater is used to simultaneously operate many fire protection devices (a plurality of fire shutters).

[0006] The system described in Patent Document 1 is configured to simultaneously control multiple fire shutters connected to a repeater via electric wires. That is, when installing fire shutters in a place with a large floor area such as a large warehouse, multiple smoke detectors that detect smoke generation are installed in each compartment as detection means for detecting abnormal situations in the event of a fire, and a repeater is also installed in each compartment, and the operation of all the fire shutters is controlled by transmitting a signal from the detection means via the repeater to a central receiver.

[0007] However, if a fire or other incident occurs and the smoke detector, which is the detection means, shorts out, there is a possibility that all of the fire shutters will not operate. Therefore, a disconnector is installed between the repeater and the receiver, and if the detection means shorts out, the disconnector is used to disconnect only the repeater to which the shorted detection means is connected from the central receiver. This makes it possible for the receiver to operate fire shutters installed in areas other than the one where the disconnector was activated. On the other hand, the fire shutters in the compartment that were controlled by the repeater that was disconnected by the disconnector will no longer close automatically, making it difficult to effectively prevent the spread of fire in that compartment. Other than installing a disconnector, there is another method, such as wrapping the wiring of the detector with fireproof tape, but the cost is an issue, so most people use the disconnector instead.

[0008] Therefore, the applicant has filed patent application No. 2003-233699, which describes a fire protection equipment control system and a fire protection equipment signal transmission method that can operate a fire protection compartment formation device of a compartment isolated by a circuit breaker without using a repeater. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] JP 2007-244607 A [Patent Document 2] JP 2019-198640 A DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0010] The fire protection equipment control system described in Patent Document 2 provides a plurality of fire compartment forming means with a backup detection means configured to have a lower sensitivity than the detection means provided in the fire compartment, and the fire compartment forming means starts automatic closure in response to a detection signal output from the backup detection means. If the detection means provided in the fire compartment detects an abnormal situation corresponding to a fire first and the fire compartment forming means starts automatic closure based on that through the relay means, this backup detection means will not function. However, if the relay means is electrically disconnected from the receiver by the disconnecting means, the detection means provided in the fire compartment no longer functions as a detector, and the fire compartment forming means will not execute automatic closure. Therefore, in the invention described in Patent Document 2, the fire compartment forming means are configured to start automatic closure individually in response to a detection signal output from the backup detection means, and the fire compartment forming means that automatically close individually can minimize the spread of a fire.

[0011] Patent Document 2 also states that if the detection means installed in the fire compartment is a smoke detector, it is preferable to use a flame detector as the backup detection means, and that if the detection means installed in the fire compartment is a heat detector or a flame detector, it is preferable to use a detector with a lower sensitivity than the installed detector as the backup detection means. Furthermore, it is described that when detectors with similar sensitivity are used, it is possible to adjust the sensitivity by delaying the detection signal by a predetermined time. Furthermore, it is described that a thermal fuse that melts due to the heat of a fire may be used as a sensor for a low-sensitivity detector.

[0012] Generally, mechanisms that use a thermal fuse to automatically close a shutter when a fire is detected have a simple structure in which, when the thermal fuse melts due to heat, a wire or other means is used to pull the brake of the shutter opening and closing the shutter.As this is a mechanical structure that does not use any electricity, there is no need to consider how to respond in the event of a power outage. However, since the fire compartment forming means described in Patent Document 2 is controlled using an electrical signal, if a thermal fuse that detects fire using a mechanical mechanism is used, the mechanical mechanism must be converted into an electrical signal.

[0013] The present invention has been made in consideration of the above-mentioned points, and aims to provide a temperature fuse type sensing device that can output an electrical sensing signal using a temperature fuse, a fire prevention equipment control system using the same, a fire prevention equipment signal transmission method, and a fire prevention compartment formation device. [Means for solving the problem]

[0014] The characteristic of the temperature fuse type sensing device of the present invention is that it comprises a temperature fuse means which melts under predetermined conditions, a movable means which mechanically moves in response to the melting of the temperature fuse means, and a switch means which turns a contact on / off in response to the movement of the movable means. Conventional thermal fuse-type sensing devices are configured with a mechanical mechanism in which a wire connected to the brake mechanism of a switchgear is engaged with a thermal fuse at a predetermined tension, and when the thermal fuse melts, the tension on the wire is removed, the wire slackens, the brake of the switchgear is released, and the shutter automatically closes. In this invention, a movable means is provided that is mechanically movable when the thermal fuse melts, and a switch means is provided that is set to on / off according to the movement of the movable means, so that the melting of the thermal fuse is detected as an electrical signal by electrically detecting the on / off state of the switch means. This makes it possible to use a thermal fuse-type sensing device that can output an electrical sensing signal as the backup sensing means described in Patent Document 2.

[0015] A first feature of the fire prevention equipment control system according to the present invention is a system including a plurality of fire compartment forming means provided in a building, which forms a plurality of fire compartments in the building by dividing a space in the building with a shielding member in response to a close instruction signal output from a receiver, a detection means provided in each of the plurality of fire compartments, which detects an abnormality corresponding to a fire outbreak and outputs a detection signal, a relay means connected to the detection means in the fire compartment and outputs the detection signal to the receiver and also outputs the close instruction signal to the fire compartment forming means, and a relay means provided between the relay means and the receiver, which, when the detection means is shorted, switches the shorted detection means back to the connected state. In a fire prevention equipment control system comprising a disconnecting means for electrically disconnecting the relay means connected to the receiver from the receiver, and a plurality of signal transmission means for transmitting a closure instruction signal output from the receiver to each of the plurality of fire compartment forming means without passing through the disconnecting means and the relay means, the temperature fuse type sensing means is provided in each of the plurality of fire compartment forming means, and even if the relay means is electrically disconnected from the receiver by the disconnecting means, the sensing signal of the temperature fuse type sensing means is directly transmitted as the closure instruction signal via the signal transmission means to the fire compartment forming means connected to the disconnected relay means.

[0016] The sensing means detects an abnormal situation corresponding to a fire outbreak and outputs a sensing signal. Heat detectors, smoke detectors, flame detectors, etc. correspond to the sensing means, which are installed in the building. Fire compartment forming means are installed in multiple places in the building and form a predetermined fire compartment in the building in response to a closing instruction signal input when a fire occurs. Fire shutter devices, fire curtain devices, fire doors, and other shielding members correspond to the sensing means. In addition, fire protection shielding members that are deployed in a descending, rotating, horizontal, folding, horizontal, or ascending manner correspond to the sensing means. In the case of a fire door, it is stored in a storage unit provided on the side of the periphery of the building opening, and when a fire occurs, it rotates from the state stored on the side of the periphery and stops by abutting on a door stop provided on the upper (ceiling) side or lower (floor) side of the periphery, thereby separating a part of the building opening. In some cases, a fire shutter device that separates (closes) the remaining part of the opening that is not separated by the fire door is installed next to the fire door. Normally, a fire door is restrained in a storage compartment such as a door pocket by an engagement member, and in the event of an emergency such as a fire, the automatic fire door closing device receives a start signal from a harm prevention interlocking relay and releases the restraint of the engagement member, thereby starting the closing operation. These fire compartment forming means are installed in multiple places within the building.

[0017] The relay means is connected to the sensing means provided in the fire compartment and to the receiver. The relay means receives a sensing signal from the sensing means, transmits it to the receiver, and outputs a close instruction signal to the plurality of fire compartment forming means in response to the input of the sensing signal. If one or more of the sensing means are shorted when a fire occurs, a disconnecting means provided between the relay means and the receiver electrically disconnects them. In this invention, a plurality of signal transmitting means are provided for transmitting the close instruction signal output from the receiver to each of the plurality of fire compartment forming means without passing through the disconnecting means and the relay means, and even if the relay means is electrically disconnected from the receiver by the disconnecting means, the receiver transmits the close instruction signal to the fire compartment forming means connected to the disconnected relay means. This has the effect of allowing the fire protection equipment (fire compartment forming devices such as fire shutters and fire doors) of the compartment disconnected by the disconnecting means to be operated without using the relay means. Furthermore, in this invention, a thermal fuse type sensor configured to be less sensitive than the sensor means provided in the fire compartment is provided in each of the fire compartment forming means, and the fire compartment forming means is configured to start automatic closure in response to a sensing signal output from the thermal fuse type sensor. If the sensor means provided in the fire compartment first detects an abnormal situation corresponding to a fire outbreak and the fire compartment forming means starts automatic closure based on that through the relay means, this thermal fuse type sensor will not function. However, if the relay means is electrically disconnected from the receiver by the disconnecting means, the sensor means provided in the fire compartment no longer functions as a sensor, and the fire compartment forming means will not execute automatic closure. Therefore, in this invention, the fire compartment forming means are configured to start automatic closure individually in response to a sensing signal output from the thermal fuse type sensor, so that the spread of fire can be minimized by the fire compartment forming means that automatically close individually.

[0018] A second feature of the fire prevention equipment control system of the present invention is that it comprises a plurality of fire prevention compartment forming means which are installed in a building and which form a plurality of fire prevention compartments within the building by dividing the space within the building with shielding members in response to a close instruction signal output from a receiver; sensing means which are installed in each of the plurality of fire prevention compartments and which detect an abnormal situation corresponding to a fire outbreak and output a detection signal; relay means which is connected to the sensing means in the fire prevention compartment and outputs the detection signal to the receiver and also outputs the detection signal to the fire prevention compartment forming means as the close instruction signal; disconnecting means which is installed between the relay means and the receiver and which, in the event of a short circuit, electrically disconnects the relay means to which the shorted sensing means is connected from the receiver; and standby sensing means which outputs a sensing signal from a temperature fuse type sensing means installed in each of the plurality of fire prevention compartment forming means as the close instruction signal to the corresponding fire prevention compartment forming means. This omits the signal transmission means, which is an essential requirement of the fire protection equipment control system described in the first aspect above.

[0019] A third feature of the fire protection equipment control system of the present invention is that, in the fire protection equipment control system described in the first or second feature, the detection means is composed of a smoke detection means that detects smoke when a fire occurs. This system limits the means of detecting abnormal situations such as fires to smoke detection means. Because smoke caused by a fire spreads quickly within a building, the use of smoke detection means makes it possible to detect the abnormality itself at an early stage and encourage rapid evacuation.

[0020] A fourth feature of the fire protection equipment control system of the present invention is that, in the fire protection equipment control system described in the first feature, when the relay means is disconnected from the receiver by the disconnecting means, the receiver transmits the closure instruction signal via the signal transmission means to the fire protection compartment forming means connected to the relay means that has been disconnected from the receiver. This means that when the relay means is disconnected from the receiver by the disconnecting means, the receiver can identify the disconnected relay means, and then transmits a closure instruction signal via the signal transmission means to the fire compartment forming means connected to that relay means, thereby quickly forming a fire compartment.

[0021] A first feature of the fire protection signal transmission method of the present invention is that in the fire protection equipment control system comprising a plurality of fire protection compartment forming means which are installed within a building and which form a plurality of fire protection compartments within the building by dividing the space within the building with shielding members in response to an input of a close instruction signal output from a receiver, a sensing means which is installed within each of the plurality of fire protection compartments and which detects an abnormal situation corresponding to a fire outbreak and outputs a detection signal, and a relay means which is connected to the sensing means within the fire protection compartment and outputs the detection signal to the receiver and also outputs the detection signal to the fire protection compartment forming means as the close instruction signal, the fire protection equipment control system further comprises: a temperature fuse type sensing means which is installed in each of the plurality of fire protection compartment forming means; when the sensing means is shorted, the relay means to which the shorted sensing means is connected is electrically disconnected from the receiver; and even when the relay means is electrically disconnected from the receiver, the sensing signal of the temperature fuse type sensing means is directly transmitted as the close instruction signal to the fire protection compartment forming means which is connected to the disconnected relay means. This is an invention of a fire prevention signal transmission method corresponding to the second feature of the fire prevention equipment control system.

[0022] A second feature of the fire prevention signal transmission method of the present invention is that, in the fire prevention signal transmission method described in the first feature, the detection means is configured as a smoke detection means that detects smoke when a fire occurs. This is an invention of a fire prevention signal transmission method corresponding to the third feature of the fire prevention equipment control system.

[0023] A feature of the fire compartment forming device according to the present invention is that it is provided with a thermal fuse type sensing means. This is an invention of a fire compartment forming device equipped with a temperature fuse type sensing device capable of outputting an electrical sensing signal. Effect of the Invention

[0024] The fire protection equipment control system and fire protection signal transmission method of the present invention have the advantage that fire protection equipment (fire protection compartment forming devices such as fire shutters and fire doors) in a compartment separated by a disconnector can be operated without using a repeater. [Brief description of the drawings]

[0025] [Figure 1] 1 is a diagram showing a schematic configuration of a three-story building in which a fire protection equipment control system of the present invention is installed. [Diagram 2] 1 is a diagram showing a schematic configuration of a fire shutter device and a fire door that constitute the fire prevention equipment control system according to the present invention. [Diagram 3] FIG. 3 is a diagram showing an example of how a fire prevention equipment control system is arranged in an architectural space using the fire shutter device and fire door shown in FIG. 2. [Figure 4] 1 shows a schematic configuration of a standby detector that uses a thermal fuse that melts due to heat in the event of a fire as a sensor, and shows the state before the thermal fuse melts due to heat. [Diagram 5] 1 shows a schematic configuration of a standby detector that uses a thermal fuse that melts due to heat in the event of a fire as a sensor, and is a diagram showing the state after the thermal fuse has melted due to heat. [Figure 6] FIG. 11 is a flowchart showing an example of an automatic closing process for a fire shutter device and a fire door. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] A preferred embodiment of a fire prevention equipment control system using a thermal fuse-type sensor according to the present invention will be described below with reference to the attached drawings. In this embodiment, a group of shutter devices that are controlled to open and close vertically as an opening / closing body means will be described as an example. Fig. 1 is a diagram showing the schematic configuration of a three-story building in which the fire prevention equipment control system of the present invention is installed. Fig. 2 is a diagram showing the schematic configuration of the fire shutter devices and fire doors that make up the fire prevention equipment control system of the present invention. In the fire prevention equipment control system of the present invention, fire shutter devices and fire doors as shown in Fig. 2 are provided in multiple locations on each floor. Note that there may be cases in which multiple fire shutter devices or fire doors are provided separately.

[0027] Since the fire shutter devices 11, 21, 31 and fire doors 12, 22, 32 shown in Fig. 1 have the same configuration, the configurations of the fire shutter device 11 and fire door 12 installed on the first floor will be described in Fig. 2. Also, Fig. 1 shows only one fire shutter device 11, 21, 32, fire doors 12, 22, 32, and smoke detectors 13, 23, 33 installed on each floor, but in reality, multiple fire shutter devices, fire doors, and smoke detectors are installed on each floor.

[0028] The fire shutter device 11 basically comprises an opening / closing mechanism 110, a brake 111, an automatic closing device 112, a shutter curtain 114, guide rails 115, 116, a danger prevention interlocking relay 118, an electric manual closing device 119, a seat switch 11a, a backup detector 11d, etc. This fire shutter device 11 is usually in an open state with the opening / closing mechanism 110 winding up the shutter curtain 114 on a winding shaft (not shown) and storing it in a storage section provided at the top of the periphery of the opening. As another example, the shutter curtain 114 is not wound up and is kept in a closed state, and in the event of a fire, the shutter curtain 114 is stored in the storage section and opened. The open state of the fire shutter device 11 is maintained by being mechanically held by the brake 111.

[0029] In the event of a fire, the automatic closing device 112 releases the open state maintained by the brake 111 in response to a fire prevention signal BS input via the repeater 41 and the harm prevention interlocking repeater 118, a closing instruction signal input from the electric manual closing device 119 (including an emergency shutter closing button) via the harm prevention interlocking repeater 118, or a detection signal input from the standby detector 11d via the harm prevention interlocking repeater 118, and closes or partitions the opening to form a predetermined fire compartment by lowering the shutter curtain 114 by its own weight and drawing it out from the storage section. The fire prevention signal BS is output from the smoke detector 13 installed on each floor, which detects smoke as an abnormal situation corresponding to the occurrence of a fire, and is input to the automatic closing device 112 as a closing instruction signal via the repeater 41 and the harm prevention interlocking repeater 118. The detection signal output from the standby detector 11d is directly input to the harm prevention interlocking repeater 118.

[0030] The smoke detectors 13, 23, 33, the fire shutter devices 11, 21, 31, the fire doors 12, 22, 32, the repeaters 41, 42, 43, and the disconnectors 51, 52, 53 may be installed in multiple locations depending on the internal structure of the building and the installation environment. Also, multiple smoke detectors may be installed on each floor, and the multiple smoke detectors may be connected to the repeaters. In this case, the repeater may output a number of fire protection signals corresponding to the detection of the multiple fire protection signals BS when one or more of the multiple smoke detectors detect a smoke. This makes it possible to know which smoke detector detected the smoke and the time and place. Also, the repeater may output a single fire protection signal BS when one or more of the multiple smoke detectors detect a smoke.

[0031] The repeaters 41, 42, 43 are connected to the smoke detectors 13, 23, 33 in each section and are connected to the receiver 70 in the disaster prevention center via the disconnectors 51, 52, 53. When the repeaters 41, 42, 43 receive or input a fire protection signal BS from the smoke detectors 13, 23, 33, they transmit a close instruction signal for the fire shutter devices 11, 21, 31 and the fire doors 12, 22, 32 to the harm prevention interlocking repeaters 118, 218, 318 based on the fire protection signal BS. Similarly, when the repeaters 41, 42, 43 receive or input a fire protection signal BS from the receiver 70, they transmit a close instruction signal for the fire shutter devices 11, 21, 31 and the fire doors 12, 22, 32 to the harm prevention interlocking repeaters 118, 218, 318 based on the fire protection signal BS.

[0032] The disconnectors 51, 52, 53 cut off the circuit between the repeaters 41, 42, 43 and the receiver 70 when any of the smoke detectors 13, 23, 33 shorts out, preventing the effects of the short from spreading to other sections (repeaters). The disconnectors 51, 52, 53 are formed as circuit breakers, and when any of the detectors 13, 23, 33 shorts out and an abnormal overcurrent flows through the repeaters 41, 42, 43, they open the circuit between the repeaters 41, 42, 43 and the receiver 70, preventing the effects of the short from spreading to other sections on the receiver 70 side.

[0033] The opening / closing device 110 is a drive motor for electrically opening and closing the shutter curtain 114. The harm prevention interlocking repeater 118 outputs a DC 24V signal, which is a voltage signal, to the automatic closing device 112 when it receives a fire protection signal BS (closing instruction signal) from the smoke detectors 13, 23, 33 and a fire protection signal BS from the receiver 70 via the repeater 41, and when it receives a detection signal (on / off contact of the microswitch) from the backup detector 11d. The harm prevention interlocking repeater 118 normally outputs a DC 24V signal using a commercial power source, but in the event of a power outage or the like, it outputs a DC 24V signal using power from a backup power source (such as a battery) built into the harm prevention interlocking repeater 118.

[0034] The automatic closing device 112 operates on commercial power supplied via the harm prevention interlocking repeater 118 or power (24V DC signal) from a standby power supply (storage battery) built into the harm prevention interlocking repeater 118, as in the case of known automatic closing devices used in conventional fire shutters. In addition, the automatic closing device 112 operates using the power of the 24V signal supplied from the harm prevention interlocking repeater 118, which has a built-in standby power supply for shutters, so that even if commercial power is not supplied to the fire shutter device 11 when a fire occurs, the brake 111 is released in response to a fire prevention signal BS (closing instruction signal) input from the smoke detector 13 or the receiver 70 via the repeater 41, or a detection signal (on / off of the contact of the microswitch) from the standby detector 11d, and the shutter curtain 114 of a fireproof structure in a rolled-up state is lowered by its own weight to automatically close the opening. In addition, the fire shutter device 11 and the fire door 12 may be provided with a door or slit through which people can pass for evacuation, etc. In this embodiment, the fire door 12 is provided with a sneak door 121 .

[0035] This fire shutter device 11 is equipped with an obstacle sensor that detects contact with an obstacle during opening and closing. The obstacle sensor is composed of a seat switch 11a provided on the seat at the lower end of the shutter curtain 114, a wired obstacle sensor 11b provided in the storage box of the shutter curtain 114, and a signal line 11c that electrically connects these.

[0036] The seat board switch 11a is attached to the seat board of the shutter curtain 114 and has a built-in microswitch that closes the contacts when the seat board comes into contact with an obstacle such as a person or object. When the contacts close, the switch transmits the detection signal to the wired obstacle detection device 11b via the signal line 11c in a wired manner. The signal line 11c is a cable that transmits the detection signal of the seat board switch 11a to the wired obstacle detection device 11b. This cable is stored and guided by a cord reel, a movable pulley, or the like, to avoid bending that would hinder the opening and closing of the shutter curtain 114.

[0037] The wired obstacle detection device 11b normally operates on commercial power and controls the operation of the opening and closing mechanism 110 in response to the input of a detection signal from the seat board switch 11a, and further, at least in the event of an emergency such as a fire, outputs the obstacle detection signal from the seat board switch 11a through to the automatic closing device 112.

[0038] The automatic closing device 112 stops the closing operation of the shutter curtain 114 and performs the avoidance operation in response to the input of an obstacle detection signal from this wired obstacle detection device 11b. Therefore, if the seat plate or the like comes into contact with an obstacle while the shutter curtain 114 is descending under its own weight in the event of a fire and a detection signal is detected from the seat plate switch 11a, the automatic closing device 112 stops the descent of the shutter curtain 114 under its own weight and performs the avoidance operation. In other words, when the wired obstacle detection device 11b receives an obstacle detection signal while the shutter curtain 114 is descending under normal circumstances, it performs control such that it stops the descending operation of the shutter curtain 114 and raises it for a fixed period of time.

[0039] On the other hand, when the wired obstacle detection device 11b receives an obstacle detection signal while the automatic closing device 112 is activated and the shutter curtain 114 is lowering, such as in the event of a fire, the wired obstacle detection device 11b outputs the obstacle detection signal through to the automatic closing device 112, stops the operation of the automatic closing device 112, returns the brake 111 of the opening / closing machine 110 to the released state, and temporarily stops the shutter curtain 114. The wired obstacle detection device 11b may be an independent device as shown in Fig. 2, or may be built into the harm prevention interlocking repeater 118 or other device.

[0040] In a general configuration of a fire shutter device 11 equipped with a fire door 12 attached to a shutter curtain 114 as shown in Fig. 1 and Fig. 2, there are guide rails 115 provided at the opening side end on both sides of the shutter curtain 114, and a guide rail called a center post provided at the opening between the shutter curtain 114 and the fire door 12. In this embodiment, the guide rail 115 is provided on one side (the left side of the figure) of the shutter curtain 114, but there is no center post, and a concave groove is provided in a part of the side end of the fire door 12, which is used as the guide rail 116. Therefore, in the case of the opening / closing body device according to this embodiment, the fire door 12 is rotated to close the space (partitioned), and the guide rails 115, 116 are present on both sides of the shutter curtain 114.

[0041] In this embodiment, in order to close the shutter curtain 114 in conjunction with the closing operation of the fire door 12, which is a sleeve door provided as a screening door means, a closure confirmation switch 24 that detects when the fire door 12 is securely closed is installed at the door stop or above the lintel of the opening, and the fire door 12 closes first, and the closure confirmation switch 24 outputs a fire door closure completion signal, causing the shutter curtain 114 to begin its closing operation.

[0042] The fire door closing completion signal output from the closing confirmation switch 24 passes near the guide rail 116, passes through a position where it does not interfere with the shutter curtain 114, and is output to the harm prevention interlocking repeater 118. The harm prevention interlocking repeater 118, which has received the fire door closing completion signal, operates the automatic closing device 112, releases the brake 111, and causes the fireproof shutter curtain 114 in the rolled-up state to descend under its own weight and automatically close the opening. The fire door 12 is of a constantly open type, and is usually stored in a door pocket or the like provided on the pillar or the wall of the building structure on the side of the opening. This constantly open fire door 12 is designed to have an evacuation passage secured by a sneak door 121 provided separately on the closed fire door 12.

[0043] The automatic closing device for fire door 122 is embedded in the wall surface of the frame constituting the door pocket 123 of the fire door 12. The fire door 12 is normally restrained and held in an open state by the automatic closing device for fire door 122. When the automatic closing device for fire door 122 releases the restraint, the fire door 12 is configured to close by an urging force such as its own weight (using a so-called gravitational hinge, etc.) or a spring force (using a closer, etc.).

[0044] The automatic fire door closing device 122 is electrically connected to an external device power supply terminal (24 [V] output terminal) provided on the harm prevention interlocking repeater 118, and in response to the input of a fire prevention signal BS or a start signal based on the operation of the electric manual closing device 119, the harm prevention interlocking repeater 118 outputs a voltage of 24 [V] from the external device power supply terminal to the automatic fire door closing device 122 as a voltage signal. The automatic fire door closing device 122 uses this voltage signal to release the restraint of the fire door 12 and close the fire door 12.

[0045] The voltage signal output from the harm prevention interlocking repeater 118 to the automatic fire door closing device 122 is introduced to the automatic fire door closing device 122 at a position where it does not interfere with the shutter curtain 114 and the closing confirmation switch 24, i.e., at a position where it can avoid abutment or contact, by passing through the upper frame of the door pocket 123 of the fire door 12 and the inside of the structural wall that constitutes the door pocket 123 of the fire door 12. In Fig. 2, the wiring to the automatic fire door closing device 122 and the harm prevention interlocking repeater 118 that is buried in the structural wall is shown by dotted lines.

[0046] The electric manual closing device 119 mainly operates the opening / closing machine 110 for driving the shutter to open and close electrically, and manually generates an activation signal to perform the same operation as when the fire protection signal BS is input to the harm prevention interlocking relay 118. The electric manual closing device 119 is provided with a management combined operation input switch PBS (push button switch) corresponding to the instruction to open, close, and stop the shutter to the opening / closing machine 110, an operation button which is an emergency shutter closing button, a recovery button, a battery test button, etc., and further with various display means for displaying the battery test result, the state of the backup power supply, the state of the cord breakage, etc. Since the input switch PBS is used for management during normal times, it does not necessarily need to be provided near the opening / closing body device, and may be held by the manager as a remote control, or may be configured to be remotely operable.

[0047] In Figure 2, the electric manual closing device 119 is shown above the fire door 12, but in reality it is installed on the frame side near the fire door 12 or in a position where it can be operated by a person on the guide rail 115. The operation button of the electric manual closing device 119 is often covered with a transparent resin panel (push-break cap), and is equipped with an emergency shutter closing button (operation button) that can be operated by pushing in this transparent resin panel in the event of an emergency.

[0048] In the fire prevention equipment control system according to this embodiment, the smoke detectors 13, 23, 33 are analog detectors, so if the electric wires related to the smoke detectors 13, 23, 33 short out, the effect may be widespread and cause many of the fire shutter devices 11, 21, 31 to malfunction. Therefore, in this embodiment, disconnectors 51, 52, 53 are provided between the repeaters 41, 42, 43 and the receiver 70, so that if any of the smoke detectors 13, 23, 33 short out, the repeater 41, 42, 43 to which the shorted smoke detector 13, 23, 33 is connected is disconnected from the receiver 70, so that the effect of the short does not extend to other sections. For example, if the smoke detector 33 installed on the third floor shorts out due to the heat of the fire when a fire occurs, the circuit breaker 53 will cut off the line between the repeater 43 and the receiver 70, so that the short circuit of the smoke detector 33 will not affect the other repeaters 41, 42 on the first and second floors, and the fire shutter devices 11, 21 and fire doors 12, 22 on the first and second floors will be able to maintain normal operation.

[0049] On the other hand, the operation of the disconnectors 51, 52, 53 means that the automatic closing function cannot be performed for the fire shutter devices and fire doors installed in the compartments separated from the receiver 70. Therefore, in this embodiment, a thermal fuse type detector using a thermal fuse that melts with heat during a fire as a sensor is installed near the lintel of the fire shutter device (above the opening) as the auxiliary detector 11d, 21d, 31d, which has a lower sensitivity than the smoke detector 13, 23, 33, and the detection signal (on / off contact of the micro switch) from this auxiliary detector 11d, 21d, 31d is detected on the side of the harm prevention interlocking repeater 118, 218, 318. The auxiliary detector 11d, 21d, 31d may be installed not only on the fire shutter device but also on the fire door, or may be installed on both the fire shutter device and the fire door, or may be installed only on the fire door.

[0050] As described above, by providing each fire shutter device and / or fire door with a backup detector 11d, 21d, 31d that is less sensitive than the smoke detectors 13, 23, 33, it becomes possible for the fire shutter device and / or fire door installed in a compartment separated from the receiver 70 to activate the automatic closing function by itself.

[0051] On the other hand, the auxiliary sensors 11d, 21d, 31d installed in each fire shutter device and / or fire door have a relatively lower sensitivity than normal sensors, so there is a slight delay before the automatic closing operation starts, and during that time there is a possibility that the fire may spread to other compartments. Therefore, in this embodiment, wiring (signal lines) capable of transmitting the close command signal, which is the fire signal BS, is provided to all fire shutter devices and fire doors, and the close command signal is sent directly to the fire shutter devices and / or fire doors installed in compartments separated from the receiver 70.

[0052] For example, as shown in Fig. 1, wiring 11e, 21e, 31e with a structure having excellent fire and heat resistance is laid for sending a close command signal to the harm prevention interlocking repeaters 118, 218, 318 of the fire shutter devices 11, 21, 31 separately from the wiring connecting the receiver 70 and the disconnectors 51, 52, 53. This makes it possible to send a close command signal directly to the fire shutter devices and / or fire doors installed in the separated compartments by the operation of the disconnectors 51, 52, 53, so that the automatic closing operation can be started immediately.

[0053] According to the above-mentioned embodiment, even if the compartments are separated by the disconnectors 51, 52, 53, the closing instruction signal can be sent directly using the separately laid wiring 11e, 21e, 31e. Also, even if the wiring 11e, 21e, 31e is cut or otherwise disabled due to some malfunction, the backup detectors 11d, 21d, 31d start automatic closing of the individual fire shutter devices and / or fire doors, which provides the excellent effect of minimizing the spread of fire.

[0054] FIG. 3 is a diagram showing an example of how the fire protection equipment control system is arranged in the architectural space by the fire shutter device and the fire door shown in FIG. 2. FIG. 3 shows a square architectural space surrounded by the exterior walls 55-58 of the second floor part of FIG. 1. In the fire protection equipment control system of FIG. 3, the middle part of this architectural space is managed as four fire compartments 91-94. That is, the fire shutter device 21 and the fire door 22 as shown in FIG. 2 are provided between the pillars 61 and 62, between the pillars 62 and 63, between the pillars 63 and 64, between the pillars 64 and 65, between the pillars 63 and 73, between the pillars 73 and 77, between the pillars 63 and 83, and between the pillars 83 and 87. The four fire compartments 91-94 are formed by the fire shutter device 21 and the fire door 22 provided between these pillars. Note that the illustration of the repeater 42, the disconnector 52, the detector 21d, the wiring 21e, etc. is omitted in FIG. 3.

[0055] The guide rail 115 of the shutter curtain 114 of the fire shutter device 21 and the frame of the fire door 22 are respectively installed on the pillars 61-65, 73, 77, 83, 87. Each of the four fire compartments 91-94 includes a compartment including a staircase (staircase compartment). Smoke detectors 231-234 are installed on the pillars 75, 85, 71, 81 in the fire compartments 91-94. The smoke detectors 231-234 are connected to a repeater 42 (not shown).

[0056] Although not shown, similar smoke detectors are also provided in the staircase compartments at the four corners. If the fire doors installed in the staircase compartments are of the normally closed type, the fire doors open from the fire compartment to the outside, i.e., in the evacuation direction, and are automatically closed by a door check or the like. On the other hand, if the fire doors are of the normally open type, they are normally stored in the side of a pillar or the like, and are automatically closed in conjunction with the fire protection signal BS input from the smoke detectors 231-234 via the repeater 42. As described above, the fire doors installed in the staircase compartments are also provided with detectors with a relatively lower sensitivity than normal detectors, and wiring (signal lines) capable of directly transmitting a close command signal from the receiver 70.

[0057] In the case of a normally open fire door, an escape route is secured by a slidable door 121 provided separately from the closed fire door. The fire door used in this embodiment may be either a normally closed type or a normally open type, depending on the structure of the building. In addition, when the fire shutter device is in sheet form, an opening (slit) for an escape route may be provided in it. Note that the staircase sections form separate fire compartments by the fire doors.

[0058] In the embodiment of Fig. 3, the case where the fire compartment is formed in a cross shape in a plan view has been described, but it goes without saying that the fire compartment may be formed in the left-right direction, the up-down direction, or a T-shape, or in other complex shapes. Also, the fire compartment may be formed using only a sheet-like or shutter-like fire curtain, and a plurality of fire doors or fire openings may be provided on the fire curtain to be effective for evacuation. This is because in the case of a sheet-like fire curtain, it is common to provide a fire opening through which people can pass instead of a fire door. In any case, the shutter or fire door starts to close in an emergency in response to a closing instruction signal output from the repeater 42 when the smoke detectors 231-234 are activated.

[0059] In Fig. 1, the receiver 70 shows a case where the fire shutter devices 11, 21, 31 and the fire doors 12, 22, 32 are each one group, but if a group of fire shutter devices and fire doors, or individual fire shutters or fire doors, are provided on each floor as shown in Fig. 3, these may be divided into multiple groups, with a receiver provided for each group and each operation controlled for each group via the receiver. Also, it is preferable that the groups are composed of overlapping fire shutter devices and fire doors, or individual fire shutters or fire doors.

[0060] 3, as the fire shutter devices and fire doors for forming the fire compartment 91, the fire shutter devices and fire doors provided between the pillars 63 and 64, 64 and 65, 63 and 73, and 73 and 77 form a first group, to which one first repeater and disconnector is provided. Also, as the fire shutter devices and fire doors for forming the fire compartment 92, the fire shutter devices and fire doors provided between the pillars 63 and 64, 64 and 65, 63 and 83, and 83 and 87 form a second group, to which one second repeater and disconnector is provided. Similarly, as the fire shutter devices and fire doors for forming the fire compartment 93, the fire shutter devices and fire doors provided between pillar 61 and pillar 62, pillar 62 and pillar 63, pillar 63 and pillar 73, and pillar 73 and pillar 77 form a third group, to which a third repeater and disconnector are provided. Also, as the fire shutter devices and fire doors for forming the fire compartment 94, the fire shutter devices and fire doors provided between pillar 61 and pillar 62, pillar 62 and pillar 63, pillar 63 and pillar 83, and pillar 83 and pillar 87 form a fourth group, to which a fourth repeater and disconnector are provided.

[0061] Furthermore, a group of fire doors installed at the entrance of the staircase section is formed with a group of fire doors in the vertical section, and one repeater and disconnector are installed in the group, and the group of fire doors in the vertical section is registered as belonging to each of the first to fourth groups on that floor. In this way, by registering the fire shutter devices and fire doors in multiple groups, the close command signal transmitted from the receiver 70 via the repeater is transmitted to the fire shutter devices and fire doors via at least two communication networks, so that the close command signal, which is the fire signal BS, can be transmitted even if some kind of malfunction occurs during a fire.

[0062] Figures 4 and 5 are diagrams showing the schematic configuration of a backup detector that uses a thermal fuse that melts with heat in the event of a fire as a sensor. Figure 4 shows the state before the thermal fuse melts with heat, and Figure 5 shows the state after the thermal fuse melts with heat. In Figure 5, the same components as those in Figure 4 are given the same reference numerals, and their explanation will be omitted.

[0063] The auxiliary detector 11d is composed of a frame 101 made of a thin plate about 1 to 2 mm thick, with an overall shape of a rectangular parallelepiped, with a height of about 30 mm, a total length of about 210 mm, and a depth of about 15 mm. In Figures 4 and 5, the frame 101 on the front side is omitted, and the internal structure is shown. A hole with a diameter of about 4 mm is formed in the upper part of this frame 101 for mounting a lintel.

[0064] The left underside of the frame 101 does not have a thin plate of the frame 101, and instead has a decorative cover 104 that rotates around a first shaft 103 as a rotation axis. The decorative cover 104 has a concave shape when viewed from the left side. The first shaft 103 is attached so as to be sandwiched between the front and rear thin plates of the frame 101. The left end of the decorative cover 104 has a mountain-shaped protrusion having a hole for inserting the first shaft 103. The first shaft 103 is inserted into a hole in the decorative cover 104 and is attached rotatably. The decorative cover 104 rotates clockwise from the underside of the frame 101 around the first shaft 103.

[0065] A hole for passing the second shaft 105 through is provided in a mountain-shaped protrusion at approximately the center of the decorative cover 104. The second shaft 105 is inserted into the mountain-shaped protrusion formed at approximately the center of the decorative cover 104. The decorative cover 104 is further provided with a reset lever 106 that rotates around the second shaft 105 as a rotation axis. The reset lever 106 is Z-shaped and has an opening at one end for passing the second shaft 105 through.

[0066] The other right end of the reset lever 106 and the right end of the decorative cover 104 each have a long and narrow opening for inserting the engaging member 107a of the thermal fuse 107. This long opening is formed along the longitudinal direction of the frame 101 (the left-right direction on the paper). The engaging member 107a of the thermal fuse 107 has a long member in the front-rear direction on the paper of FIG. 4 that is shaped to insert into the long opening. That is, after the engaging member 107a of the thermal fuse 107 is inserted into the long opening, the thermal fuse 107 is rotated about 90 degrees around the longitudinal direction of the engaging member 107a as a central axis, whereby the longitudinal direction of the long opening and the longitudinal direction of the engaging member 107a engage with each other so that they form an angle of 90 degrees, and the thermal fuse 107 is configured not to come out of the long opening.

[0067] An engagement member 109 consisting of a protrusion for engaging the right end of a coil-shaped return spring 108 is provided at approximately the center of the left flat portion of the reset lever 106. The left end of the return spring 108 is attached to be pinched between the front and rear thin plates of the frame 101 and engaged with the third shaft 110. A tensile stress in the counterclockwise direction about the second shaft 103 is constantly applied to the reset lever 106 by the return force of the return spring 108. Therefore, when the thermal fuse 107 melts due to heat, the thermal fuse 107 and the engagement member 107a are separated in response to the rotation of the reset lever 106. When the engagement member 107a is separated from the thermal fuse 107, the reset lever 106 rotates counterclockwise as shown in FIG. 5. Meanwhile, the decorative cover 104 rotates in the opposite clockwise direction.

[0068] A microswitch 112 with a lever 112a is attached to the side of the frame 101 on the right side with a screw or the like. Two lead wires of a heat-resistant electric wire 113 are attached to two terminals of the microswitch 112 with heat-shrink tubing. The lever 112a of the microswitch 112 is in contact with the upper surface of the right end of the decorative cover 104, and when the decorative cover 104 rotates clockwise, the lever 112a of the microswitch 112 rotates downward (counterclockwise), switching the contacts of the microswitch 112 and turning the microswitch 112 on. This on-state event is output as an electrical detection signal from the standby sensor 11d to the harm prevention interlocking relay 118 to which the heat-resistant electric wire 113 is connected.

[0069] In Fig. 4 and Fig. 5, the thermal fuse means that melts under a predetermined condition corresponds to the thermal fuse 107. The movable means that mechanically move in response to the melting of the thermal fuse means correspond to the decorative cover 104 and the reset lever 106. The switch means that turns on / off the contact in response to the movement of the movable means corresponds to the microswitch 112. The conditions for melting the thermal fuse 107 are as specified in the Building Standards Act, and are stipulated as not operating when exposed to air heated to 50 degrees at a wind speed of 1 m per second for 5 minutes, and operating within 1 minute at 90 degrees, so this condition is also applied in this embodiment. Depending on the location where the fire compartment forming device is installed, this condition may be changed and applied in various ways. In order to ensure this condition, in this embodiment, insulation 107b is provided between the decorative cover 104 and the thermal fuse 107. This is to prevent the heat from the movable means such as the frame 101, the decorative cover 104, and the reset lever 106, which are made of metal, from being directly transmitted to the thermal fuse 107.

[0070] 6 is a flow chart showing an example of the automatic closing process of the fire shutter device and the fire door. In this embodiment, the fire shutter device 11, 21, 31 and the fire doors 12, 22, 32 operate in conjunction with each other. The automatic closing process of the fire shutter device 11 and the fire door 12 will be described below. In step S60, a close instruction signal output from the repeater 41 which has received a fire protection signal BS from the smoke detectors 13, 23, 33, a close instruction signal based on an activation signal from the electric manual closing device 119, or a detection signal from the backup detectors 11d, 12d, 13d is input to the harm prevention interlocking repeater 118. In step S61, the harm prevention interlocking relay 118 is activated in response to the input of a fire prevention signal BS, an activation signal, or a closure instruction signal based on a detection signal. In step S62, the automatic closing device for fire doors 122 located in the door pocket on the sleeve door side responds to the voltage signal from the harm prevention interlocking repeater 118 and releases the engaging fittings of the automatic closing device for fire doors 122 that are engaged with the hook plate (not shown) of the fire door 12.

[0071] In step S63, since the engaging fittings of the automatic closing device 122 for a fire door were released in the previous step, the fire door 12 starts the closing process by the biasing force of its own weight (when so-called gravitational hinges are used, etc.) or a spring force (when a closer is used, etc.). In step S64, it is determined whether or not a fire door closing completion signal has been input from a built-in limit switch, i.e., the closing confirmation switch 24, installed on the upper frame of the fire door 12 by abutting against a door stop portion (not shown), and if it is determined that the signal has been input (yes), the process proceeds to the next step S65, and if it is determined that the signal has not been input (no), the process of step S64 is repeated until the fire door closing completion signal is input, and the input standby state for the fire door closing completion signal is maintained. Note that if the fire door closing completion signal is not input for a predetermined period of time, the process of step S64 may be terminated and the process may proceed to the next step S65.

[0072] In step S65, since the completion of closure of the fire door 12 has been confirmed by the input of the fire door closure completion signal in step S64, the harm prevention interlocking repeater 118 starts a delay timer to operate the automatic closing device 112 for the shutter curtain 114 of the fire shutter device 11. In step S66, the harm prevention interlocking relay 118 determines whether the activation delay timer started in the previous step has counted up a predetermined time (e.g., 10 seconds), and if it determines that it has counted up (yes), it proceeds to the next step S67, and if it determines that it has not counted up (no), it repeats the processing of this step until it has counted up.

[0073] In step S67, since it was determined in the previous step that the operation delay timer has counted up, the harm prevention interlocking relay 118 activates the automatic closing device 112 of the shutter curtain 114 of the fire shutter device 11. In step S68, the automatic closing device 112 executes the closing process of the shutter curtain 114. When the closing process is completed, the harm prevention interlocking repeater 118 transmits a closing process completion signal to the receiver 70 via the repeater 41.

[0074] In the flow of Fig. 4 in which the fire door 12 (a sleeve door) and the shutter curtain 4 operate in conjunction with each other, the fire door 12 (a sleeve door) is automatically closed in response to the input of a start signal, and then the shutter curtain 4 is automatically closed after the timer counts up. If the obstacle detection device detects an obstacle during the automatic closing of the shutter curtain 4, a predetermined obstacle avoidance operation is performed, but this operation is omitted in this embodiment.

[0075] In the above embodiment, a shutter curtain that is unrolled in a vertical lifting manner has been described as an example, but the present invention can be applied to a shutter-like opening and closing member that is unrolled in a lateral pulling manner or a horizontal pulling manner. In addition, the present invention can be applied to, for example, a shutter device, a window shutter device, a blind device, a roller screen device, a hanging curtain device, a smokeproof hanging wall device, a swing door device, a folding door device, a sliding door device, a movable partition device, an awning device, a waterproof board device, and the like as an opening and closing body device. Surveillance cameras and motion sensors may be installed around the fire shutter device and fire door, and each operation may be controlled based on images captured by the camera and information detected by the motion sensor.

[0076] In the above embodiment, the smoke detectors 13, 23, 33 transmit detection signals to the repeaters 41, 42, 43 by wire, but the detection signals may be transmitted wirelessly between the smoke detectors 13, 23, 33 and the repeaters 41, 42, 43. Similarly, the detection signals may be transmitted wirelessly between the spare detectors 11d, 21d, 31d and the harm prevention interlocking repeaters 118, 218, 318. In the above embodiment, a case where one repeater is provided on the first floor has been described, but if there are multiple sections on each floor as shown in Fig. 3, a repeater may be provided for each section on each floor, and the repeater and receiver on each floor may be connected. Also, receivers may be provided in multiple locations in the building, and each may operate independently. [Explanation of symbols]

[0077] 11, 21, 31…Fire shutter device 110...Opening and closing machine 111…Brake 112,212,312…Automatic closing device 114...Shutter curtain 115,116…Guide rail 117,217,317…Transceiver handset 118, 218, 318…Interlocking repeater for preventing harm 119...Electric manual closing device 11a…Seat switch 11b…Wired obstacle detection device 11c...Signal line 11d, 21d, 31d...Back-up detector 11e, 21e, 31e...Wiring 12, 22, 32…Fire doors 121...Sneaky door 122...Automatic closing device for fire doors 123…Door pocket 13,23,33…Smoke detector 231~234…Smoke detector 24...Closing confirmation switch 41, 42, 43...Repeater 70…Receiver 51,52,53...Disconnector 55~58…Exterior wall 61~65,71~78,81~88…Columns 91~94…Fire compartment 101...Frame 103…1st axis 104...Cosmetic cover 105…Second axis 106…Reset lever 107...Thermal fuse 107a...engagement member 108…Return spring 109...Engagement member 110…3rd axis 112a…Lever 112…Microswitch 113...Heat-resistant wire

Claims

1. a plurality of fire compartment forming means provided in the building, for forming a plurality of fire compartments in the building by dividing a space in the building with a shielding member in response to an input of a closing instruction signal outputted from a receiver; a detection means provided in each of the plurality of fire compartments for detecting an abnormality corresponding to a fire outbreak and outputting a detection signal; a relay means connected to a sensing means in the fire compartment and configured to output the sensing signal to the receiver and to output the closing instruction signal to the fire compartment forming means; a disconnecting means for electrically disconnecting the relay means to which the shorted sensing means is connected from the receiver when the sensing means is shorted; a plurality of signal transmission means for transmitting a closing instruction signal output from the receiver to each of the plurality of fire compartment forming means without passing through the disconnecting means and the relay means, a temperature fuse type sensing means provided in each of the plurality of fire compartment forming means, the temperature fuse type sensing means comprising: a temperature fuse means which melts under a predetermined condition; a movable means which mechanically moves in response to the melting of the temperature fuse means; and a switch means which turns on / off a contact in response to the movement of the movable means, the temperature fuse means being in contact with the switch means before the temperature fuse means melts, and the switch means turning on / off a contact in response to the movement of the movable means away from the switch means after the temperature fuse means melts, A fire prevention equipment control system characterized in that, even when the relay means is electrically disconnected from the receiver by the disconnecting means, the detection signal of the temperature fuse type detection means is directly transmitted to the fire compartment formation means connected to the disconnected relay means as the closure instruction signal via a signal transmission means installed separately.

2. a plurality of fire compartment forming means provided in the building, for forming a plurality of fire compartments in the building by dividing a space in the building with a shielding member in response to an input of a closing instruction signal outputted from a receiver; a detection means provided in each of the plurality of fire compartments for detecting an abnormality corresponding to a fire outbreak and outputting a detection signal; a relay means connected to a sensing means in the fire compartment and configured to output the sensing signal to the receiver and to output the closing instruction signal to the fire compartment forming means; a disconnecting means for electrically disconnecting the relay means to which the shorted sensing means is connected from the receiver when the sensing means is shorted; a thermal fuse type sensing means provided in each of the plurality of fire compartment forming means, the thermal fuse type sensing means comprising: a thermal fuse means which melts under a predetermined condition; a movable means which is mechanically movable in response to the melting of the thermal fuse means; and a switch means which turns on / off a contact in response to the movement of the movable means, the thermal fuse type sensing means being in contact with the switch means before the thermal fuse means melts, and the switch means turning on / off a contact in response to the movement of the movable means away from the switch means after the thermal fuse means melts, the thermal fuse type sensing means being provided in each of the plurality of fire compartment forming means, and a standby sensing means which outputs a sensing signal from the thermal fuse type sensing means to the corresponding fire compartment forming means as the closing instruction signal; A fire prevention equipment control system comprising:

3. The fire protection equipment control system according to claim 1 or 2, A fire prevention equipment control system, wherein the detection means is composed of a smoke detection means for detecting smoke when a fire occurs.

4. The fire protection equipment control system according to claim 1, A fire prevention equipment control system characterized in that, when the relay means is disconnected from the receiver by the disconnecting means, the receiver transmits the closure instruction signal via the signal transmission means to the fire compartment formation means connected to the relay means that has been disconnected from the receiver.

5. a plurality of fire compartment forming means provided in the building, for forming a plurality of fire compartments in the building by dividing a space in the building with a shielding member in response to an input of a closing instruction signal outputted from a receiver; a detection means provided in each of the plurality of fire compartments for detecting an abnormality corresponding to a fire outbreak and outputting a detection signal; a relay means connected to a sensing means in the fire compartment and configured to output the sensing signal to the receiver and to output the closing instruction signal to the fire compartment forming means, a temperature fuse type sensing means provided in each of the plurality of fire compartment forming means, the temperature fuse type sensing means comprising: a temperature fuse means which melts under a predetermined condition; a movable means which mechanically moves in response to the melting of the temperature fuse means; and a switch means which turns on / off a contact in response to the movement of the movable means, the temperature fuse means being in contact with the switch means before the temperature fuse means melts, and the switch means turning on / off a contact in response to the movement of the movable means away from the switch means after the temperature fuse means melts, When the detection means is shorted, the relay means to which the shorted detection means is connected is electrically disconnected from the receiver; A fire prevention signal transmission method characterized in that, even if the relay means is electrically disconnected from the receiver, the detection signal of the temperature fuse type detection means is directly transmitted as the closure instruction signal to the fire prevention compartment forming means connected to the disconnected relay means.

6. 6. The fire protection signal transmission method according to claim 5, A fire prevention signal transmission method, characterized in that the detection means is composed of a smoke detection means for detecting smoke when a fire occurs.

7. A fire compartment forming device comprising a temperature fuse means which melts under predetermined conditions, a movable means which moves mechanically in response to the melting of the temperature fuse means, and a switch means which turns a contact on / off in response to the movement of the movable means, wherein before the temperature fuse means melts, the temperature fuse means abuts against the switch means, and after the temperature fuse means melts, the contact of the switch means turns on / off in response to the movement of the movable means away from the switch means.

Images