Fire prevention equipment and device for indicating a passage door

Abstract

To enable a wicket position to be guided for an evacuee in the case of fire.SOLUTION: A device (5) for clearly indicating a wicket comprises clear indication means (5a and 5b) which are provided for the wicket (4) itself provided together with an occasional closing-type fire door (2) or in a position near the same, which are operated when the fire door (2) is closed, and which clearly indicate a position of the wicket (4) by light and / or sound. In addition, fire-prevention equipment (1) has the device (5) for clearly indicating the wicket.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an indication device for indicating a secret passage door provided together with a fire door, and a fire prevention facility equipped with the same. [Background technology]

[0002] Fire doors that define fire compartments are sometimes installed inside buildings, etc. Fire doors, also known as fire doors, fire shutters, etc., have installation standards (including installation standards for side doors, which will be explained next) stipulated by relevant laws and regulations, and are installed at openings of fire compartments, etc. to prevent the spread of fire. There are two types of fire doors: those that are always closed and those that are closed when required. In the case of the side doors that are closed when required, a side door is installed on the fire door itself or in a position close to it (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-221966 A Summary of the Invention [Problem to be solved by the invention]

[0004] A siding door is installed to secure an escape route when a fire door closes due to a fire detector. However, in the event of a real fire, people trying to escape may panic if the fire door is closed, and may not be able to recognize the existence or location of the siding door. Also, it may be difficult to recognize the existence of the siding door when it is dark due to smoke or a power outage.

[0005] SUMMARY OF THE PRESENTING EMBODIMENT In view of the above circumstances, an object of the present invention is to provide a method for guiding people evacuating to the location of a passage door in the event of a fire. [Means for solving the problem]

[0006] This invention has an indicating means which is provided on the side door itself which is provided together with the fire door, or in a position adjacent thereto, and which operates when the fire door is closed to indicate the position of the side door by light and / or sound. The indicating means is activated after a period of time has elapsed since the fire door was closed. The present invention relates to a gate indicating device.

[0007] The present invention also relates to a fire prevention facility comprising the above-mentioned passage door indication device.

[0008] Here, in this invention, the indicating means may be actuated in response to a signal based on fire detection by a fire detector, or actuated in response to a signal based on the closing operation of the fire door or the operation of an automatic closing device of the fire door, or actuated mechanically in conjunction with the closing operation of the fire door. The indicating means may be actuated by irradiating the siding door with light to indicate its position. The indicating means may be actuated by generating a voice message to indicate the position of the siding door. The voice message may guide the position of the siding door based on the positional relationship between the siding door itself or an emergency exit guide light or guide sign provided in the vicinity of the siding door. Effect of the Invention

[0009] According to this invention, in the event of a fire, the location of the passage door can be clearly indicated by light and / or sound, and people attempting to evacuate can be guided thereto. [Brief description of the drawings]

[0010] [Figure 1] This is an explanatory diagram showing an example of an embodiment of the present invention, which shows a fire door of a type that closes when required, an automatic closing device, a passage door, and a passage door indicating device that constitute the fire prevention equipment, together with a fire detector of the automatic fire alarm equipment. Note that the fire door is shown in a closed state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the tunnel door indicator and fire protection equipment of the present invention will be described with reference to the drawings.

[0012] [Fire prevention equipment] A fire prevention system 1 is installed within a building TM to define fire compartments and prevent the spread of fire in the event of a fire. The fire prevention system 1 includes a fire door 2, an automatic closing device 3, a passage door 4, and a passage door indicator 5, the details of each component of which will be described later.

[0013] [Fire door] The fire door 2 is of a type that closes at any time and is normally open to open openings such as the passageway of the fire compartment, but is automatically closed in the event of a fire based on detection by a fire detector (smoke detector, etc.) 15 (Figure 1 shows the fire door 2 in a closed state).

[0014] As for the opening and closing method of the fire door 2, the illustrated example shows a hinged door type, but various other opening and closing methods such as sliding door type and folding door type can be used, and various shutter types can also be used. The closing drive mechanism of the fire door 2 can be appropriately selected according to the opening and closing method of the fire door 2, and if it is a hinged door type, it can be, for example, a door check arm or a hinge closer that closes in the direction of the arrow 2A (the illustrated example shows the case of a hinge closer).

[0015] [Automatic closing device] The automatic closing device 3 is configured to normally keep the fire door 2 open, but when a fire occurs, it operates in response to a signal from the automatic fire alarm system based on fire detection by the fire detector 15, and releases the mechanism for maintaining the open state of the fire door 2. The automatic closing device 3 can be, for example, a latch-type electromagnetic release.

[0016] In this case, the automatic closing device 3 is provided on the structural side such as the wall of the building TM (for example, the wall inside the door pocket TB of the fire door 2 as in the illustrated example), and a hook member 2a that cooperates with the automatic closing device 3, which is a latch-type electromagnetic release, is provided on the fire door 2 side. Normally, the automatic closing device 3 keeps the hook member in a latched state to keep the fire door 2 open, but in the event of a fire, in response to an interlocking signal based on fire detection by the fire detector 15, the automatic closing device 3 is activated to release the hook member 2a from the latched state, opening the fire door 2 and closing it using its closing drive mechanism.

[0017] The automatic closing device 3 may be of a magnetic attraction structure, with an electromagnet on the release side, instead of a latch and hook structure. Also, instead of being released upon receiving a signal based on fire detection from the fire detector 15, it may be of a temperature fuse type. That is, when a fire occurs, the temperature fuse may be blown by heat of a predetermined temperature, and the automatic closing device 3 may be mechanically released.

[0018] [Sneaky door] The passage door 4 is provided to secure an evacuation route when the fire door 2 is closed in the event of a fire. In the illustrated example, the passage door 4 is provided on the fire door 2 itself, and the evacuation opening provided on the fire door 2 itself is always closed, but can be manually opened, so that even if the fire door 2 is closed in the event of a fire, the evacuation opening can be opened as appropriate.

[0019] Incidentally, the passage door 4 may be provided in the vicinity of the fire door 2 instead of being provided on the fire door 2 itself. For example, when the fire door 2 is a shutter and it is not possible to provide the passage door 4 on the fire door 2 itself, the passage door 4 may be provided on a wall adjacent to an opening such as a passageway opened and closed by the fire door 2. In the illustrated example, the passage door 4 is assumed to be opened and closed as a swing door, but it may be opened and closed by other opening and closing methods.

[0020] [Slide door indicator] The fire prevention equipment 1 of the present invention is provided with a passage door indication device 5 having indication means (for example, a light 5a or a speaker 5b described below) that is activated when the fire door 2 closes in the event of a fire, and indicates the position of the passage door 4 by light or sound.

[0021] As a result, in the event of a fire, the fire prevention equipment 1 can clearly indicate the position of the passage door 4 with light and sound, and can guide people seeking evacuation.

[0022] In the illustrated example, the installation position of the through door indication device 5 is in the vicinity of the fire door 2 (above the door pocket TB of the fire door 2), but it may be provided on the fire door 2 itself. In addition, the indication means using light or sound may be one that generates both light and sound, or one that generates either light or sound.

[0023] -Specific examples of how to start The passage door indicator device 5 is not normally activated, but is provided to activate when the fire door 2 closes in the event of a fire. As with the automatic closing device 3, it can be activated upon receiving an interlocking signal from the automatic fire alarm system based on the detection of a fire by the fire detector 15. Also, instead of the detection of a fire by the fire detector 15, it can be activated upon receiving an interlocking signal from the automatic fire alarm system based on the activation of the automatic closing device 3.

[0024] In addition, when the passage door indicating device 5 is to be operated by sending and receiving an interlocking signal, the automatic closing device 3 may be provided with an interlocking signal output function so that when the automatic closing device 3 is operated, the interlocking signal is sent to the passage door indicating device 5, and the passage door indicating device 5 is operated in response to the interlocking signal. Also, a sensor that detects the closing operation of the fire door 2 may be provided separately, and the passage door indicating device 5 may be operated in response to a detection signal from the sensor.

[0025] Also, instead of activating the passage door indicating device 5 by transmitting and receiving such an interlocking signal, a switch means (including a non-contact type that detects changes in magnetic force or radio wave intensity and the like) that is turned on in mechanical interlocking with the closing action when the automatic closing device 3 is activated and the fire door 2 is closed can be provided, and the passage door indicating device 5 can be activated by the on-activation of the switch means. In this way, for example, even if the automatic closing device 3 is forcibly released manually to close the fire door 2, the passage door indicating device 5 can be activated.

[0026] -Specific examples of expressive measures ...Light-based display means The light indicating means in the passage door indicating device 5 can be a light 5a that irradiates light onto the passage door 4 in the closed state. The light 5a may be one that irradiates the entire passage door 4, or one that intensively irradiates a specific portion (such as the door handle 4a). The light 5a may also be one that irradiates light characters onto the passage door 4.

[0027] Another example of a means for indicating by light is a chemical light.

[0028] ...Sound indication means The means for indicating by sound in the passage door indicating device 5 can be a speaker 5b that generates a voice message. The voice message may, for example, simply announce the presence of the passage door 4, or may announce the presence of the passage door 4 while indicating its position based on its positional relationship with other parts that are likely to serve as landmarks (for example, the fire door 2 itself, or an emergency exit guide light 6 or an emergency guide sign provided in its vicinity). Furthermore, the manner in which the passage door 4 opens and the evacuation direction may also be announced. In addition, when the fire door 2 is closed, the surrounding atmosphere becomes different from normal, which can cause confusion, so the voice message may announce that the fire door 2 is closed and is not in a normal state.

[0029] ·power supply The power source for the through door indicator device 5, together with the automatic closing device 3, etc., can be an external power source.

[0030] The passage door indicator 5 may have a built-in battery power source and use an internal power source. In that case, it can be configured to operate not by sending and receiving an interlocking signal when a fire occurs, but by mechanically interlocking with the closing action of the fire door 2. In this way, it is possible to omit the wiring connection between the automatic fire alarm system equipped with the fire detector 15 and the automatic closing device 3. In addition, if the automatic closing device 3 is of a thermal fuse type, the passage door indicator 5 can be automatically operated by mechanically interlocking with the closing action of the fire door 2 even if the external power source is lost due to a fire.

[0031] [Example of changing the configuration] The above describes an embodiment of the present invention with reference to the drawings. However, the specific configuration is not limited to the above embodiment, and also includes design modifications and the like within the scope of the gist of the present invention.

[0032] For example, the installation location of the through door indication device 5 may be, instead of being installed on the wall in which the door pocket TB of the fire door 2 is located as in the illustrated example, it may be installed on the wall in which the opening closed by the fire door 2 is located.

[0033] Also, a passage door indicator device 5 can be provided on the passage door itself so that the surface of the passage door 4 emits light or sounds.

[0034] Furthermore, the through door indicating device 5 may delay the time until it is activated when the activation factor is determined to be the closing of the fire door 2. The fire door 2 can be closed manually, and can be closed with a light force, particularly from the perspective of fail-safe, and may close when a person or object hits it. Therefore, if the through door indicating device 5 is delayed when the fire door 2 is closed by mistake, people in the vicinity will not be surprised. Furthermore, if the through door indicating device 5 is powered by a battery, battery consumption can be reduced. Furthermore, the through door indicating device 5 can be provided with an operation stop switch, or, after delaying, a delay extension switch or delay release switch can be provided. [Explanation of symbols]

[0035] 1: Fire prevention equipment 2: Fire door 3: Automatic closing device 3a: Hook member 4: Sliding door 4a: Door handle 5: Sliding door indicator 5a: Light 5b: Speaker 6: Emergency exit guide light 15: Fire detector TM: Building TB: Door pocket

Claims

1. The fire door has an indicating means which is provided on the side door itself or in the vicinity thereof and which is activated when the fire door is closed to indicate the position of the side door by light and / or sound; A passage door indicator device, characterized in that the indicator means operates after a period of time has elapsed since the fire door was closed.

2. A fire prevention facility comprising the device for indicating a passage door according to claim 1.

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