Firefighting equipment

Abstract

To provide fire fighting equipment that can easily be installed for a protection target object such as a cooking range with easy maintenance, and can efficiently suppress and extinguish a fire with a small discharge amount of a fire extinguishing agent.SOLUTION: Fire fighting equipment includes: a sheet body 20 having a fire extinguishing agent discharge port 32 for discharging a fire extinguishing agent; fire extinguishing agent supply means for supplying a fire extinguishing agent; a sheet holding member 94 for holding the sheet body 20 in a non-deployed state; and a sheet holding release part 96 for releasing the holding by the sheet holding member 94 and bringing the sheet body 20 into a deployed state. In a normal time, the sheet body 20 is held in a non-deployed state by the sheet holding member 94, and in the event of a fire in a fire fighting target area, a fire extinguishing agent is supplied to the sheet holding release part 96 from the fire extinguishing agent supply means. By operating the sheet holding release part 96 to release the holding by the sheet holding member 94 of the sheet body 20 in the non-deployed state, the sheet body 20 is deployed so as to separate the fire fighting target area from the outside.SELECTED DRAWING: Figure 12

Description

[Technical Field]

[0001] The present invention relates to a fire extinguishing system for suppressing and extinguishing fires that occur in home appliances that use fire, such as range equipment and Buddhist altars. [Background technology]

[0002] Statistically, residential fires have traditionally occurred in kitchen ranges, which use fire on a daily basis, and Buddhist altars, which use candles and incense. For this reason, various types of fire extinguishing systems are known to deal with fires in ranges, for example (Patent Documents 1 and 2).

[0003] The fire extinguishing equipment in Patent Document 1 stores an airbag in a folded state around the periphery of a range stand, and in the event of a fire, the airbag is activated to rise into a rectangular tube shape that surrounds the range stand, and extinguishes the fire by releasing extinguishing agent from a fire extinguisher into the enclosed space.

[0004] Furthermore, the fire extinguishing equipment of Patent Document 2 is arranged with a bellows-shaped fire-resistant expansion body locked in a contracted state around the periphery of a range hood, and in the event of a fire, the fire-resistant expansion body is unlocked as a fire extinguishing agent is sprayed from a fire extinguisher, and is extended to surround the periphery of the range stand below, and the fire extinguishing agent is released into the space enclosed by the extended fire-resistant expansion body to extinguish the fire. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-172307 [Patent Document 2] Japanese Patent Application Publication No. 10-246482 [Patent Document 3] Japanese Patent Application Publication No. 05-200127 [Patent Document 4] Microfilm of Utility Model Application No. 52-065370 (Utility Model Application No. 53-166598) [Patent Document 5] Japanese Patent Application Publication No. 2020-146436 [Patent Document 6] Japanese Patent Application Publication No. 07-015543 Summary of the Invention [Problem to be solved by the invention]

[0006] However, such conventional fire extinguishing equipment has the problem that it has a complex structure and requires extra installation space because it has a separate structure for surrounding the fire target, such as a range equipment, to isolate it from the surrounding area, and a separate structure for releasing extinguishing agent from a fire extinguisher into the enclosed space.

[0007] Furthermore, these fire extinguishing systems use fire extinguishers as a source of extinguishing agent. However, such extinguishers discharge large amounts of extinguishing agent due to their high discharge pressure. Therefore, when the fire to be extinguished is located in a relatively small space such as an attached range or Buddhist altar, i.e., when the enclosed space is relatively narrow, there is a problem that the extinguishing agent scattered around can cause secondary damage, such as soiling or damaging surrounding objects.

[0008] The inventors of the present application have proposed a fire extinguishing system that integrates a partition structure (enclosure structure) for a protected compartment (the compartment to be extinguished) with a fire extinguishing agent release structure (Japanese Patent Application No. 2019-211175). This fire extinguishing system holds a heat-resistant sheet in an undeployed state at an opening at the boundary between the protected compartment and the outside, for example, on the ceiling above a room entrance. For example, if a fire breaks out in the room, the sheet is deployed to block the entrance, and fire extinguishing agent is released into the room from release ports located in various places on the deployed sheet, making it possible to suppress and extinguish the fire with a small amount of fire extinguishing agent.

[0009] However, the fire extinguishing equipment proposed by the inventor of the present application uses, for example, a water supply system as a source of fire extinguishing agent, and since it is necessary to branch off the water supply pipes and connect the fire extinguishing agent pipes to the fire extinguishing equipment installed in the protected area, installation can be time-consuming.

[0010] Also, a fire extinguisher can be used as a fire extinguishing agent supply source instead of a water supply facility, but in that case, there is the problem of secondary damage occurring similar to the fire extinguishing facilities in Patent Documents 1 and 2. Furthermore, fire extinguishers have a set service life, and when that service life expires, they need to be replaced with new ones, which creates the problem of time and expense involved in maintenance.

[0011] The object of the present invention is to provide a fire extinguishing system that is easy to install, for example, in a range or Buddhist altar, is easy to maintain, and can efficiently suppress and extinguish a fire (suppress or extinguish combustion) with a small amount of fire extinguishing agent. [Means for solving the problem]

[0012] (Fire extinguishing equipment) The present invention is a fire extinguishing system that suppresses and extinguishes a fire that has occurred within a predetermined fire extinguishing area, a sheet body having a fire extinguishing agent outlet for discharging a fire extinguishing agent; 、 a holding means for holding the sheet body in a non-deployed state; an unfolding means for releasing the sheet body held by the holding means to unfold the sheet body; a fire extinguishing agent supply means for supplying the fire extinguishing agent to the sheet body and the deployment means; and, Equipped with Normally, the sheet body is held in a non-deployed state by the holding means, In the event of a fire within the area to be extinguished, the extinguishing agent is supplied from the extinguishing agent supply means to the deployment means, which operates the deployment means and releases the sheet body from the holding means in the undeployed state, thereby deploying the sheet body so as to separate the inside of the area to be extinguished from the outside. At the same time, the extinguishing agent is supplied from the extinguishing agent supply means to the sheet body, and the extinguishing agent is discharged into the fire extinguishing area from the extinguishing agent discharge port of the sheet body in the deployed state. It is characterized by:

[0013] (Fire extinguishing agent supply route) The supply path of the extinguishant from the extinguishant supply means to the deployment means is a supply path branched off from the supply path of the extinguishant from the extinguishant supply means to the sheet body.

[0014] (Fire extinguishing equipment applied to range equipment) The fire extinguishing area is an area that is associated with the range equipment.

[0015] (Fire extinguishing equipment applied to Buddhist altars) The fire extinguishing area is the area associated with the Buddhist altar. [Effects of the Invention]

[0016] (Basic effects of fire extinguishing equipment) The fire extinguishing equipment of the present invention for extinguishing a fire that breaks out in a range equipment comprises a fire extinguishing means including a sheet body with an extinguishing agent flow path having an extinguishing agent discharge port, and a fire extinguishing agent supply means for supplying extinguishing agent to the extinguishing agent flow path.The sheet body is deployed to separate the inside of a specified fire extinguishing area associated with the range equipment from the outside, and the fire extinguishing agent supplied from the fire extinguishing agent supply means via the fire extinguishing agent flow path is discharged from the fire extinguishing agent discharge port into the fire extinguishing area.This makes it easy to install and maintain, and makes it possible to efficiently suppress and extinguish a fire with a small amount of extinguishing agent discharged.

[0017] (Effect of fire extinguishing measures on microwave equipment) In the range equipment, a range hood is placed above the range stand, the fire extinguishing area is the spatial region between the range hood and the range stand, the fire extinguishing means is installed at a predetermined position on the range hood side, and in the event of a fire in the range equipment, a sheet body is deployed over at least a portion of the boundary between the fire extinguishing area and the outside to separate the inside and outside of the fire extinguishing area, and a fire extinguishing agent is released into the fire extinguishing area from a fire extinguishing agent release port of the deployed sheet body, so that both the partition function and the fire extinguishing function of the range equipment are achieved by deploying the sheet body, simplifying the equipment configuration and reducing installation space and costs. Furthermore, the release of fire extinguishing agent from the deployed sheet body makes it possible to reliably suppress and extinguish a fire inside the range equipment at an early stage.

[0018] (Effect of the function of the fire extinguishing agent supply means) The extinguishing agent supply means converts the pressure energy of a specified gas into kinetic energy for releasing the extinguishing agent and supplies the extinguishing agent to the extinguishing means, so there is no need to supply the extinguishing agent from an external extinguishing agent supply source, and the fire extinguishing equipment can be installed simply and easily on the range stand.

[0019] (Effects of the basic configuration of the fire extinguishing agent supply means) In addition, the fire extinguishing equipment is equipped with a fire detection means that detects a fire that occurs within the area to be extinguished, and the extinguishing agent supply means is equipped with a pressurizing means filled with a specified gas (filled with an inert gas such as nitrogen in a compressed state), a starting means that switches the discharge port side of the pressurizing means from a closed state to an open state when a fire in the area to be extinguished is detected by the fire detection means, thereby releasing the specified gas, and a pump means that introduces the specified gas released from the pressurizing means and supplies the extinguishing agent to the fire extinguishing means by the pressure of the introduced gas.Therefore, the extinguishing agent stored in the extinguishing agent supply means provided in the fire extinguishing equipment itself can be pressurized and supplied without the need for an external supply of extinguishing agent from, for example, a water supply system, and the fire extinguishing agent supply means can be installed simply and easily on or near the range equipment.

[0020] (Effects of specific configuration of extinguishing agent supply means) The pressurizing means is a high-pressure container filled with a gas such as a compressed gas or a liquefied gas, such as nitrogen or carbon dioxide. A compact, low-cost, and easy-to-handle mini-gas cartridge can be used as the high-pressure container filled with a gas such as nitrogen or carbon dioxide. The starting means can be easily realized by a valve means, such as a small electromagnetic valve, that easily changes the flow path on the discharge port side of the high-pressure container from a closed state to an open state.

[0021] In addition, the pump means stores a fire extinguishing agent, such as tap water, in a container such as a polyethylene tank and seals it, and in the event of a fire, gas released from the high-pressure container is introduced through a gas inlet pipe to pressurize the sealed container, thereby generating pressure to supply the fire extinguishing agent to the fire extinguishing means.This pressure causes the sheet body to unfold, and the fire extinguishing agent can be released from the fire extinguishing agent discharge port through the fire extinguishing agent discharge pipe.This has a simple structure, is low cost, and operates reliably to supply the fire extinguishing agent.

[0022] In addition, the amount of extinguishing agent released by the fire extinguishing means is determined by the capacity of the container that holds the extinguishing agent, and can be set to an appropriate amount that is appropriate for the installation space and size of the range equipment installed in the home, making it possible to reduce secondary damage that may occur when releasing a large amount at high pressure, as occurs when using a fire extinguisher.

[0023] (Effect of fire extinguishing means configuration) In addition, the fire extinguishing means comprises a sheet body having an extinguishing agent supply port and an extinguishing agent flow path with an extinguishing agent discharge port, holding means for holding the sheet body in a non-deployed state, and deployment means for releasing the holding means to place the sheet body in a deployed state; under normal circumstances, the sheet body is held in a non-deployed state by the holding means, and in the event of a fire within the area to be extinguished, the deployment means deploys the sheet body to separate the area to be extinguished from the outside; extinguishing agent is supplied to the extinguishing agent flow path via the extinguishing agent supply port and released into the area to be extinguished from the extinguishing agent discharge port, making it possible to release the extinguishing agent over a surface area, ensuring a wider release range than conventional point release where the installation location is the release point, and by reducing the number of areas where water spraying is obstructed (where secondary damage occurs), it is possible to suppress and extinguish a fire with a small amount of extinguishing agent released.

[0024] Furthermore, the sheet body is sized to correspond to the installation location and size of the range equipment, and by releasing the extinguishing agent from the extinguishing agent outlets located in various places on the sheet surface, the extinguishing agent can be sprayed with relatively little pressure to every corner of the fire target within the fire extinguishing area (for example, a cooking pot on fire on the stove top and the area around where burning oil has splattered), making it possible to suppress and extinguish a fire efficiently and in a short time, with little impact on the outside, and also being lightweight and simple to use.

[0025] In addition, the sheet body is deployed downward from the range hood, and the extinguishing agent is released from the extinguishing agent outlet in a direction perpendicular to (horizontal) the deployed sheet surface, allowing the extinguishing agent to reach positions that are hidden when viewed from above the target of fire extinguishing, ensuring the fire is suppressed and extinguished reliably.

[0026] Furthermore, since the sheet body equipped with the extinguishing agent flow path and extinguishing agent discharge port is flexible, the sheet body can be normally kept in a non-expanded state, for example rolled up, by the holding means and installed in a position that does not get in the way when the microwave equipment is in use. Even when the extinguishing means is installed, it does not interfere with the daily use of the microwave equipment and requires less installation space.

[0027] In addition, when a fire occurs within the area to be extinguished, the deployment means releases the sheet body from its holding means, causing the other end edge of the sheet body, which has one end edge fixed, to fall downward and deploy vertically, separating a predetermined position at the boundary between the inside and outside of the area to be extinguished.The deployment of the sheet body allows extinguishing agent to be released from extinguishing agent discharge ports located at various points on the deployed sheet body toward the area to be extinguished, making it possible to suppress the fire.

[0028] The deployment means can release the sheet from its undeployed state and deploy it using the pressure of the extinguishing agent supplied to the fire extinguishing means as a driving source. Furthermore, since no electrical release operation is required, the sheet can be reliably deployed and the extinguishing agent can be released even in the event of a power outage.

[0029] (Effect of the first sheet structure) The sheet body has a first cover sheet, a second cover sheet, and a sheet pipe as a fire extinguishing agent flow path, and the sheet pipe is formed so as to be freely crushable and deformable, and is positioned between the first cover sheet and the second cover sheet, thereby making it possible to simply, easily, and at low cost manufacture a flexible sheet body equipped with a fire extinguishing agent flow path and a fire extinguishing agent discharge port.

[0030] (Effect of the second sheet structure) In addition, the sheet body has a first cover sheet, a first waterproof sheet, a second waterproof sheet and a second cover sheet, and is sewn together in a stacked state in the order of first cover sheet, first waterproof sheet, second waterproof sheet and second cover sheet so as to form a fire extinguishing agent distribution path between the first waterproof sheet and the second waterproof sheet, and a fire extinguishing agent discharge outlet is provided on at least one of the first cover sheet and first waterproof sheet side or the second cover sheet and second waterproof sheet side of the fire extinguishing agent distribution path, so that the formation of the fire extinguishing agent distribution path and the integration of the stacked sheet bodies are achieved simultaneously by sewing, and a flexible sheet body equipped with a fire extinguishing agent distribution path and a fire extinguishing agent discharge outlet can be made even more simply and easily, and since it is also easy to mass-produce, manufacturing costs can be further reduced.

[0031] (Effect of fabric-like material) Furthermore, of the first and second cover sheets, at least the one facing the area to be extinguished when deployed is a cloth-like material that has fire prevention, fire resistance, heat resistance, heat insulation, flame insulation, or smoke insulation properties, and therefore can continue to release fire extinguishing agent even when exposed to the heat or flames of a fire without being burned; furthermore, when deployed after being placed at a predetermined position on the boundary between the inside and outside of the area to be extinguished, it can prevent the spread of fire by blocking flames, heat, and smoke from outside the area to be extinguished.

[0032] (Effects of applying to Buddhist altars) The fire extinguishing means is installed in correspondence with the Buddhist altar in place of a range equipment, and in the event of a fire within the fire extinguishing area associated with the Buddhist altar, a sheet body is deployed to separate the fire extinguishing area from the outside, and the fire extinguishing agent supplied from the fire extinguishing agent supply means via the fire extinguishing agent distribution path is released into the fire extinguishing area from the fire extinguishing agent release port, thereby enabling early detection of a fire within the fire extinguishing area of ​​the Buddhist altar and reliably suppressing the fire.

[0033] (Effect of fire extinguishing measures for Buddhist altars) The area to be extinguished is a specified spatial region of the Buddhist altar that is surrounded by a specified frame structure, and the fire extinguishing means is installed at a specified position in the frame structure.In the event of a fire within the area to be extinguished, a sheet body is deployed to separate the area to be extinguished from the outside, and extinguishing agent is released into the area to be extinguished from the extinguishing agent release port of the deployed sheet body, making it easy to install and maintain, and enabling efficient suppression and extinguishing of fires with a small amount of extinguishing agent released. [Brief explanation of the drawings]

[0034] [Figure 1] FIG. 1 is an explanatory diagram showing an embodiment of a fire extinguishing system installed in a range system. [Figure 2] FIG. 2 is an explanatory diagram showing the structure of a fire extinguishing agent supply means provided in the fire extinguishing system. [Figure 3] FIG. 10 is an explanatory diagram showing the operation of the fire extinguishing equipment when a fire breaks out in the range equipment. [Figure 4] FIG. 2 is an explanatory diagram showing a sheet body provided in a fire extinguishing means of a fire extinguishing facility in a deployed state. [Figure 5] 10A to 10C are explanatory diagrams showing an embodiment of a manufacturing procedure for a sheet body. [Figure 6] 6A and 6B are explanatory diagrams showing a sheet pipe that forms a fire extinguishing agent flow path in a sheet body, in which FIG. 6A shows a collapsed sheet pipe under normal conditions, and FIG. 6B shows a bulged sheet pipe when a fire extinguishing agent is supplied. [Figure 7] 7A and 7B are explanatory diagrams showing the structure of the extinguishing agent discharge port of the sheet body of FIG. 5, in which FIG. 7A shows the installation state in which the sheet piping and the first cover sheet are sandwiched, FIG. 7B shows an exploded view of the assembly, and FIG. 7C shows an exploded view of the assembly in cross section. [Figure 8] 10 is an explanatory diagram showing a sheet body in an unfolded state in which extinguishant flow paths are formed by seams. FIG. [Figure 9] 9A to 9C are explanatory diagrams showing a manufacturing procedure of the sheet body of FIG. 8. [Figure 10] 10A shows the installation state of the sheet piping and the first waterproof sheet sandwiched between them, FIG. 10B shows an exploded view of the assembly, and FIG. 10C shows an exploded view of the assembly in cross section. [Figure 11] 11A and 11B are explanatory diagrams showing the extinguishing agent flow path formed by the stitching in FIG. 8, in which FIG. 11A shows the extinguishing agent flow path collapsed under normal conditions, and FIG. 11B shows the extinguishing agent flow path expanded when the extinguishing agent is flowing. [Figure 12] 12A and 12B are explanatory diagrams showing an embodiment of the deployment means provided in the fire extinguishing means, in which Fig. 12A shows a front view of the sheet body held in a non-deployed state under normal circumstances, Fig. 12B shows a side view, Fig. 12C shows a front view of the sheet body deployed in the event of a fire, and Fig. 12D shows a side view. [Figure 13] 13A and 13B are explanatory views showing the sheet retention release portion provided on the deployment means of FIG. 12, with FIG. 13A showing the appearance and FIG. 13B showing a cross section. [Figure 14] FIG. 1 is an explanatory diagram showing an embodiment of a fire extinguishing system installed in a Buddhist altar. [Figure 15] FIG. 10 is an explanatory diagram showing the operation of the fire extinguishing equipment when a fire breaks out in a Buddhist altar. DETAILED DESCRIPTION OF THE INVENTION

[0035] [Fire extinguishing equipment embodiment] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a fire extinguishing system according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments.

[0036] [Basic Concept of the Embodiment] First, the basic concept of the embodiment will be described. The embodiment generally relates to a fire extinguishing system. The "fire extinguishing system" is a system that suppresses and extinguishes a fire that occurs within a predetermined fire extinguishing area, such as equipment, devices, and appliances installed in a room of a building. For example, the fire extinguishing system is installed in or near the fire extinguishing area, and suppresses and extinguishes the fire by detecting a fire within the fire extinguishing area and automatically releasing a fire extinguishing agent.

[0037] Here, the term "fire extinguishing target area" refers to a concept that includes a specific spatial area associated with, for example, a range or Buddhist altar that uses fire within a house, and "within the fire extinguishing target area" refers to a concept that includes the spatial area inside the fire extinguishing target area, such as a range or Buddhist altar.

[0038] In addition, "suppressing and extinguishing a fire" combines the concepts of suppressing a fire and extinguishing a fire. For example, suppressing a fire is the concept of suppressing the spread of a fire, the speed at which a fire burns, or the scale of a fire, while extinguishing a fire is the concept of putting out the fire. Of course, it also includes cases where only one of these is done.

[0039] The fire extinguishing system according to this embodiment includes a fire detection means, a fire extinguishing agent supply means, and a fire extinguishing means.

[0040] Here, "fire detection means" refers to a means for detecting a fire that has occurred within an area to be extinguished, such as a range equipment or a Buddhist altar, and is a concept that includes, for example, detectors, heat detectors, smoke detectors, flame detectors, smoke sensors, heat sensors, etc.

[0041] Furthermore, the "fire extinguishing agent supply means" converts the pressure energy of a specified gas into kinetic energy of a fire extinguishing agent and supplies it to the fire extinguishing means when the fire detection means detects a fire in an area to be extinguished, such as a range or Buddhist altar. Here, the "specified gas" is a concept that includes non-flammable substances (gases), such as compressed nitrogen and carbon dioxide, and the "gas pressure energy" refers to the pressure at which an inert gas, such as compressed nitrogen, tries to expand.

[0042] Here, "converting the pressure energy of the gas into the kinetic energy of the extinguishing agent" means applying the pressure of the compressed gas to the extinguishing agent and converting it into a force that moves the extinguishing agent. For example, this is the concept of constructing a pump means by introducing high-pressure, for example compressed nitrogen, into a sealed container that contains the extinguishing agent, pressurizing the extinguishing agent, and discharging it to the outside.

[0043] The "pump means" converts the pressure energy of the introduced gas into kinetic energy of the extinguishing agent (liquid) and sends it out (discharges it), and can be said to be a non-mechanical pump means that differs from ordinary pump means that convert mechanical kinetic energy generated by motor drive, etc. into kinetic energy of liquid or gas.

[0044] In addition, the "fire extinguishing means" is a means that, when fire extinguishing agent is supplied from the fire extinguishing agent supply means, unfolds a sheet body to separate a predetermined position at the boundary between the inside and outside of the fire extinguishing area, such as a range equipment or Buddhist altar, and releases fire extinguishing agent from the unfolded sheet body into the fire extinguishing area.

[0045] Here, the term "sheet body" refers to a body that has, for example, a flexible thickness and a predetermined area that can be used to cover or encase something, and is a concept that includes, for example, a cloth-like body that can be held in a non-expanded state or that can be released from the non-expanded state to be put in an expanded state.

[0046] Furthermore, the "area to be extinguished" refers to the spatial region between the range hood and the range stand in the case of a range equipment, for example, the space between the range hood and the range stand, surrounded by a closed section made up of a wall and an open boundary section around it; in the case of a Buddhist altar, it refers to a specified spatial region of the altar surrounded by a specified frame structure, for example, the inside of the altar, surrounded by a closed section made up of a casing and an opening with an open front side.

[0047] Furthermore, "deploying a sheet body to separate a predetermined position at the boundary between the inside and outside of the fire extinguishing area" means, for example, if the fire extinguishing area is made up of a microwave oven, deploying a sheet body to separate at least a part of the surrounding open boundary, for example, the boundary on the front side of the microwave oven stand where a person is positioned, to block the boundary between the microwave oven stand and the front side; and if the fire extinguishing area is made up of a Buddhist altar, deploying a sheet body to separate the opening on the front side to block the opening.

[0048] The fire extinguishing means according to this embodiment includes, in addition to the sheet body described above, a fire extinguishing agent flow path, a fire extinguishing agent supply port, and a fire extinguishing agent discharge port provided on the sheet body.

[0049] Here, the term "fire extinguishing agent flow path" refers to a path through which the fire extinguishing agent flows, which is provided on the sheet body to release the fire extinguishing agent from the sheet body, and is a concept that includes, for example, a sheet pipe disposed between fabric bodies. Note that the "sheet pipe" refers to, for example, a flexible pipe that can be crushed and deformed and expands when the fire extinguishing agent flows through it.

[0050] The term "fire extinguishing agent supply port" refers to an inlet for supplying fire extinguishing agent to a fire extinguishing agent flow path provided in the sheet body, and is a concept that includes, for example, a connection port for a fire extinguishing agent pipe.

[0051] In addition, a "fire extinguishing agent discharge port" is an outlet for the fire extinguishing agent supplied from the fire extinguishing agent supply port to the fire extinguishing agent distribution path, and discharges the fire extinguishing agent from various locations on at least one side of the sheet body.For example, in the event of a fire, it is an opening that discharges the fire extinguishing agent from multiple fire extinguishing agent discharge ports arranged at various locations on the fire extinguishing area side of the sheet body.

[0052] Here, "area release" refers to the discharging of extinguishant from multiple locations over a surface by placing multiple extinguishant outlets (release points) at various locations on the sheet surface, i.e., the discharging of extinguishant from the extinguishant outlets placed at various locations on the sheet surface, thereby dispersing the extinguishant over a wide area of ​​the sheet surface. In contrast, "point release" refers to the discharging of extinguishant from a single point by placing an extinguishant outlet (release point) at a single location (installation location).

[0053] The fire extinguishing means also comprises a holding means and a deploying means. Here, the "holding means" normally holds the sheet body in an undeployed state at a predetermined position on a range equipment, Buddhist altar, etc., and the "deploying means" is a means for releasing the hold of the sheet body and deploying it in the event of a fire. For example, normally, the sheet body is rolled up and placed in an undeployed state at a predetermined position, such as the front edge of a range hood placed on top of a range stand in the case of a range equipment, and in the event of a fire in the target area for fire extinguishing, the sheet body is released from its hold and deployed, with one end edge (upper end edge) fixed and the other end edge (lower end edge) falling under its own weight and deploying vertically, thereby partitioning and sealing the boundary between the range stand and the surrounding area on the front side where a person is located.

[0054] In the following explanation, the specific contents of the fire extinguishing equipment according to this embodiment when it is installed in a "range equipment" will be first explained, and then the specific contents of the fire extinguishing equipment when it is installed in a "Buddhist altar" will be explained.

[0055] [Specific details of the embodiment] Next, specific details of the embodiment of the fire extinguishing system will be described. The details will be divided into the following sections. a. Specific details of the embodiment of the fire extinguishing equipment installed in the range equipment a1. Configuration of fire extinguishing equipment installed in range equipment b. Fire detection means c. Fire extinguishing agent supply means c1. High-pressure vessel c2.Starting device c3. Pump means d. Fire extinguishing means e. Operation of fire extinguishing equipment installed in range equipment f. Sheet body f1. Seat structure f2. Sheet manufacturing method 1 f3. Sheet manufacturing method 2 g. Retention and deployment means g1. Retention structure and deployment structure g2. Sheet release section configuration h. Specific details of the implementation form of the fire extinguishing equipment installed in the Buddhist altar h1. Configuration of fire extinguishing equipment installed in Buddhist altars h2.Fire detection means h3. Fire extinguishing agent supply means h4. Fire extinguishing means h5. Operation of fire extinguishing equipment installed in Buddhist altars i. Modifications of the present invention

[0056] [a. Specific details of the embodiment installed in the microwave equipment] As a fire extinguishing system according to this embodiment, first, a specific embodiment in which the fire extinguishing system is installed in a range equipment consisting of a range stand and a range hood will be described.

[0057] (a1. Configuration of fire extinguishing equipment installed in range equipment) As shown in Figures 1(A) and 1(B), the fire extinguishing system of this embodiment is installed in a kitchen range facility consisting of a range stand 10 and a range hood 12, and is composed of a fire detection means 14, a fire extinguishing agent supply means 16, and a fire extinguishing means 18.

[0058] Range stand 10 is equipped with a plurality of gas stoves 10a used for cooking, for example, and range hood 12 is located above range stand 10. Range hood 12 has intake port 12a on its underside facing range stand 10, and uses the built-in motor fan to suck in steam and smoke generated during cooking using gas stoves 10a, and exhausts the air outdoors through the wall behind it or the ceiling above.

[0059] Here, in the following explanation, the direction in which the positional relationship between the range hood 12 and the range stand 10 is vertical, as shown in the figure, is referred to as the vertical direction or height direction, the direction from the front of the range stand 10 where a person is positioned toward the wall on which the range hood 12 is attached is referred to as the front-to-back direction or depth direction, and the direction perpendicular to both the vertical and front-to-back directions is referred to as the horizontal direction or left-to-right direction.

[0060] [b. Fire Detection Means] The fire detection means 14 detects a fire (hereinafter referred to as a "range fire"), such as a flame rising from a cooking pot or the like while the range stand 10 is in use, and may have any function or configuration, but may be, for example, a known heat detector that detects heat from a fire and outputs a fire detection signal. The fire detection means 14 may be installed in any location, but may be installed in a predetermined position at the air inlet 12a of the range hood 12, as shown in Figure 1, for example. The fire detection means 14 may be a smoke detector, a flame detector, or the like, in addition to a heat detector.

[0061] [c. Fire extinguishing agent supply means] When the fire detection means 14 detects a range fire, the extinguishant supply means 16 converts the pressure energy of a predetermined gas, for example, compressed nitrogen, into kinetic energy of an extinguishant and supplies the extinguishant to the fire extinguishing means 18 via the extinguishant piping 26. The configuration and structure of the extinguishant supply means 16 are arbitrary, but as an example, as shown in Figure 2, it is made up of a high-pressure container 34 which serves as the pressurizing means, an activation device 36 which serves as the activation means, and a pump means 38, and in this embodiment it is stored in a box-shaped case made up of a main body 24a and a lid 24b, and is placed under the range stand 10, for example, as shown in Figure 1.

[0062] (c1. High-pressure vessel) The high-pressure container 34 is filled with a compressed inert gas such as nitrogen or carbon dioxide as the specified gas, and although its structure and type are optional, one example is a commercially available mini gas cartridge, as shown in Figure 2. Mini gas cartridges are generally bottle-shaped, with a total length of 14 cm, a body diameter of 4 cm, and an upper neck diameter of 1.4 cm. As the internal volume is 100 ml or less, they are exempt from the High-Pressure Gas Safety Act, and the filling pressure is approximately 20 MPa at room temperature.

[0063] The high-pressure container 34 using a mini gas cartridge has a discharge port formed at the top end of the neck sealed with a sealing plate, and threads are formed on the outside of the neck so that a gas release adapter 35 can be screwed in and fixed. When the adapter 35 is screwed into the neck of the high-pressure container 34, the seal of the sealing plate is broken, and gas is introduced to the primary side of the starting device 36. After using the fire extinguishing equipment, the used high-pressure container 34 can be easily removed from the adapter 35 and replaced with a new one.

[0064] (c2. Starting device) 1 detects a microwave fire, the starting device 36 operates to open the secondary side (the discharge port side) and release the gas filled in the high-pressure vessel 34. The configuration and structure of the starting device 36 are arbitrary, but a solenoid valve or the like is used, for example. When the controller 45 receives a fire detection signal from the fire detection means 14 via signal line 55, the controller 45 outputs a drive signal via signal line 56 and operates the starting device 36 from the closed state to the open state.

[0065] The starting device 36 is connected to the outlet of the adapter 35 fixed to the high-pressure vessel 34, and by switching a solenoid valve from a closed state to an open state, for example, gas from the high-pressure vessel 34 is introduced into the secondary side of the starting device 36. The controller 45 is battery-powered and supplies power to the fire detection means 14.

[0066] (c3. Pump means) When the starting device 36 changes from a closed state to an open state, the pump means 38 introduces the gas released from the high-pressure container 34, pressurizes the stored fire extinguishing agent 46, and discharges it into the fire extinguishing agent piping 26. The pump means 38 may have any configuration or structure, but as an example, as shown in Figure 2, it is composed of a sealed container 40, a gas introduction pipe 42, and a fire extinguishing agent discharge pipe 44.

[0067] The sealed container 40 contains a predetermined fire extinguishing agent 46, and although its configuration and structure are arbitrary, for example, a box-shaped sealable polyethylene tank is used. The amount of fire extinguishing agent 46 that can be contained is also arbitrary, but for example, approximately 10 liters of fire extinguishing agent 46, such as tap water, can be contained. The fire extinguishing agent 46 contained in the sealed container 40 may be tap water mixed with a predetermined fire-extinguishing strengthening liquid, such as potassium carbonate. The sealed container 40 is also provided with a fire extinguishing agent inlet 52, which is sealed and closed with a cap 54.

[0068] In the sealed container 40, a partition plate 50 is placed with seals on both sides at an opening that is closed with, for example, a cap 48, and the partition plate 50 is fixed in place, sealingly, through which a gas inlet pipe 42 and an extinguishing agent discharge pipe 44 pass. The secondary side of the starting device 36 is connected to the end of the gas inlet pipe 42 outside the container via gas piping 41, for example, a vinyl tube, and the end of the gas inlet pipe 42 inside the container is located in the space above the liquid surface of the extinguishing agent 46. The end of the extinguishing agent discharge pipe 44 inside the container is located on the bottom side of the container, and the external end is connected to, for example, a vinyl tube as the extinguishing agent piping 26.

[0069] In the pump means 38 configured as described above, when the starting device 36 moves from the closed state to the open state and the gas filled in the high-pressure container 34 is introduced through the gas piping 41 from the end of the gas inlet pipe 42 into the upper space within the sealed container 40, the internal pressure of the container 40 rises above atmospheric pressure, and the action of this internal pressure causes the fire extinguishing agent 46 to be discharged (pumped) through the fire extinguishing agent discharge pipe 44 to the outside where the open end becomes atmospheric pressure, and the fire extinguishing agent is supplied to the fire extinguishing means 18 provided in the range hood 12 in Fig. 1 via the fire extinguishing agent piping 26. The function of such pump means 38 can be said to be a pump means that converts the pressure energy of the gas into kinetic energy for discharging (pumping) the fire extinguishing agent 46.

[0070] [d. Fire extinguishing means] The fire extinguishing means 18 shown in FIG. 1 deploys a sheet body 20 when extinguishing agent is supplied from the fire extinguishing agent supply means 16 via the fire extinguishing agent piping 26, and releases the fire extinguishing agent from the deployed sheet body 20 into the fire extinguishing area of ​​the range equipment to suppress and extinguish the fire.The function and configuration are arbitrary, but as an example, as shown in FIG. 1, it is composed of a sheet body 20 having an extinguishing agent discharge port, a holder 22 equipped with a deployment means, and a fire extinguishing agent piping 26 having an extinguishing agent supply port, and is arranged at the front peripheral part of the intake port 12a of the range hood 12 provided in the range equipment.

[0071] [e. Operation of fire extinguishing equipment installed in range equipment] The fire extinguishing system of this embodiment installed in a range equipment in this manner operates as follows: For example, as shown in Figures 3(A) and (B), if a cooking pot 28 containing cooking oil is placed on the gas stove 10a and cooking is being performed, flames 30 may rise from the cooking pot 28 due to overheating or the like, causing a range fire, and if this range fire is detected by fire detection means 14 installed in range hood 12, fire detection means 14 will output a fire detection signal to fire extinguishant supply means 16 installed, for example, below the range stand 10, to activate it, and fire extinguishant supply means 16 will supply fire extinguishant to fire extinguishing means 18 of range hood 12 via fire extinguishant piping 26.

[0072] When extinguishing agent is supplied from extinguishing agent supply means 16 via extinguishing agent piping 26, fire extinguishing means 18 releases sheet body 20, which is normally rolled up and undeployed, and causes one end of sheet body 20, which is fixed, to drop downward and deploy vertically, thereby partitioning the front boundary of the area to be extinguished, and extinguishing agent is discharged from extinguishing agent discharge ports 32 (shown simply as triangles in FIG. 3) located at various locations on the deployed sheet body 20 toward range stand 10, thereby extinguishing the range fire. Here, the area to be extinguished is the spatial region between range hood 12 and range stand 10, and in FIG. 3, the range stand 10 is open laterally between the deployed sheet body 20 and the wall behind it.

[0073] [f. Sheet body] Next, the sheet member 20 provided in the fire extinguishing means 18 will be described in more detail with reference to FIGS.

[0074] (f1. Seat structure) When extinguishing agent is supplied from extinguishing agent supply means 16, sheet body 20 of fire extinguishing means 18 unfolds to separate a predetermined position on the boundary between the area to be extinguished and the surrounding area, and in its unfolded state releases extinguishing agent into the area to be extinguished, and while any configuration or structure is possible, one example is shown in Fig. 4, which is composed of an extinguishing agent distribution channel 60 and an extinguishing agent release port 32 provided in sheet body 20 (20a). Here, as shown in the figure, the up-down direction of sheet body 20 is referred to as the vertical direction or height direction, and the direction perpendicular to the up-down direction is referred to as the horizontal direction or left-right direction.

[0075] When unfolded, the sheet body 20 (20a) is rectangular in shape with length and width corresponding to the size of the boundary between the range stand 10 and range hood 12 of the range equipment, and the front side of the range stand 10 where a person is positioned, and by using a cloth-like material, it is made flexible and can be easily unfolded by rolling it up into a roll, etc. In the embodiment shown in Fig. 3, the width of the sheet body 20 is approximately the same as the width of the range hood 12, but it may be larger or smaller than the width of the range hood 12 as long as it can be installed.

[0076] The extinguishing agent supply port 62 is connected to the extinguishing agent piping 26 and serves as an inlet for the extinguishing agent into the extinguishing agent flow path 60. Its configuration and structure are arbitrary, but for example, it is arranged on one end edge (upper end edge) side of the sheet body 20 (20a) so that the extinguishing agent inlet faces upward, and serves as an inlet for flowing the extinguishing agent into the extinguishing agent flow path 60 within the sheet body 20 (20a) shown by the dotted line.

[0077] The extinguishing agent distribution path 60 is provided in the sheet body 20 (20a) and distributes the extinguishing agent supplied from the extinguishing agent supply port 62. Its configuration, structure and arrangement are arbitrary, but for example, it is laid out in the vertical direction (direction in which the extinguishing agent flows downward) of the sheet body 20 (20a) to form a four-tiered ladder shape, with the extinguishing agent supply port 62 located in the center of the topmost tier, and extinguishing agent discharge ports 32 located in, for example, five locations each on the second to fourth tiers.

[0078] The extinguishant discharge ports 32 are arranged at various locations along the extinguishant flow path 60, and discharge the extinguishant supplied from the extinguishant supply ports 62 to the extinguishant flow path 60 toward the area of ​​the sheet body 20 (20a) that is to be extinguished. The structure, arrangement and number of the extinguishant discharge ports 32 are arbitrary, but as mentioned above, for example, they are arranged in five locations on the second to fourth rows of the extinguishant flow path 60.

[0079] Here, the extinguishant flow path 60, which is laid out to form a four-stage ladder shape, is formed so as to supply extinguishant from both ends of each outlet row element to the horizontal rows of extinguishant outlets 32 arranged in the second to fourth stages (each row of outlets arranged horizontally in each stage constitutes one outlet row element, and three rows of outlet row elements from the second to fourth stages constitute the entire outlet row). This makes it possible to make the discharge pressure of the extinguishant supplied to the multiple extinguishant outlets 32 in the same row approximately uniform, and to make the discharge pattern (angular distribution) and discharge amount uniform within the same row.

[0080] The shape of the extinguishant flow channel 60 that supplies the extinguishant to the multiple extinguishant discharge ports 32 is not limited to the ladder shape shown in Fig. 4, but may include other appropriate shapes such as a tree shape, a tournament shape, etc. Furthermore, when the discharge pressure of the multiple extinguishant discharge ports 32 is to be approximately uniform, the diameter (cross-sectional area) of the extinguishant flow channel 60 may be made thicker on the extinguishant supply port 62 side and thinner as it moves away from the extinguishant supply port 62.

[0081] (f2. Sheet body manufacturing method 1) The sheet member 20 (20a) of this embodiment shown in FIG. 4 is manufactured, for example, by the method shown in FIG. 5. First, a first cover sheet 66 and a second cover sheet 68 of a predetermined size are prepared. The first cover sheet 66 and the second cover sheet 68 are, for example, fabric-like materials having fireproof, fire-resistant, heat-resistant, or flame-retardant properties. These materials can withstand high temperatures of, for example, 1200°C, and are also known as fireproof sheets, fire-resistant curtains, or fire-resistant screens, but are not limited thereto. Furthermore, the first cover sheet 66 and the second cover sheet 68 each also have heat-shielding, flame-shielding, or smoke-shielding properties. It is not precluded that only the cover sheet (first cover sheet 66) facing the fire-extinguishing area has fireproof, fire-resistant, heat-resistant, flame-retardant, heat-shielding, or flame-shielding properties.

[0082] Next, a sheet piping 70 is prepared, which may be in the shape of a ladder with four steps. The sheet piping 70 is made of a waterproof polyester cloth, such as that used for umbrellas, formed into a pipe shape and connected in a ladder shape (the connection is designed to allow flow), and as shown in the cross section of Fig. 6(A), it is freely deformable by being crushed and flattened by being crushed from the first cover sheet 66 and the second cover sheet 68 side, and when the extinguishing agent 46 is supplied, it expands as shown in the cross section of Fig. 6(B), forming the extinguishing agent flow path 60.

[0083] As shown in FIG. 5, an extinguishing agent discharge port 32 is disposed on the first cover sheet side of the sheet piping 70 connected to the extinguishing agent supply port 62, facing the area to be extinguished, and a through-hole 72 formed in advance in the first cover sheet 66 is opened corresponding to the extinguishing agent discharge port 32.

[0084] The extinguishing agent discharge port 32 has a structure, for example, as shown in Figures 7(A), (B), and (C). The extinguishing agent discharge port 32 is composed of a base 74 and a clamping ring 76. A threaded shaft 78 stands upright on the base 74, and a discharge hole 82 passes through the threaded shaft 78. The clamping ring 76 has a threaded hole 80, and is fixed by screwing onto the threaded shaft 78.

[0085] As shown in Fig. 7(A), the base 74 is placed inside the sheet pipe 70, and as an example shown in Fig. 7(C), the base 74 is adhesively fixed at an adhesive part 81, and the screw shaft 78 is taken out to the outside. The screw shaft 78 is taken out from the opening provided in the sheet pipe 70, passes through the through-hole 72 (see Fig. 5) of the first cover sheet 66, and a clamping ring 76 is screwed into the through-hole, thereby clamping and fixing the sheet pipe 70 in a state where it is placed on the back side of the first cover sheet 66.

[0086] Next, as shown in Fig. 5, a sheet pipe 70 provided with an extinguishing agent discharge port 32 and an extinguishing agent supply port 62 is placed on the back side of the first cover sheet 66 in the thickness direction of the sheet body 20 (20a), and a second cover sheet 68 is placed on the opposite side of the first cover sheet 66, sandwiching the sheet pipe 70 between them. With the sheet pipe 70 sandwiched between them, the first cover sheet 66 and the second cover sheet 68 are sewn together with waterproof thread at seams 64 indicated by two-dot chain lines, as shown in Fig. 4 as an example, to complete the sheet body 20 (20a).

[0087] Here, the discharge holes 82 provided in the base 74 of the extinguishant discharge port 32 determine the opening diameter of the extinguishant discharge port 32, and are set to a diameter of, for example, about 3 to 4 millimeters. By discharging a discharge pattern of extinguishing agent, such as fire-extinguishing water, with a hole diameter of about 3 to 4 millimeters from the multiple extinguishant discharge ports 32 arranged at various locations on the sheet body 20, an overall surface discharge is achieved.

[0088] Furthermore, the discharge hole 82 penetrating the screw shaft 78 functions as a nozzle that determines the discharge pattern of the extinguishing agent. For example, the straight discharge hole 82 shown in Fig. 7 results in a relatively narrow-angle discharge pattern, but if the outlet opening of the discharge hole 82 is widened into a cone shape, a wide-angle discharge pattern spreading in a cone shape will result, and an appropriate opening shape can be used depending on the required discharge pattern. Furthermore, extinguishing agent discharge ports 32 with different opening shapes may be mixed as appropriate.

[0089] In this embodiment, the central axis of the discharge hole 82 (shown by the dashed line in the figure) is perpendicular to the sheet surface, but this is not limited to this. For example, the directionality of the extinguishant discharge can be adjusted by adjusting the inclination angle of the central axis relative to the sheet surface. Furthermore, extinguishant discharge ports 32 with different inclination angles may be mixed as appropriate.

[0090] Furthermore, separate from the extinguishant discharge port 32, a cooling discharge port may be provided in the sheet pipe 70 constituting the extinguishant flow path 60 as wetting means (cooling means) for wetting and cooling the first cover sheet 66 and the second cover sheet 68, or a cooling sheet pipe constituting the cooling flow path may be provided separate from the sheet pipe 70 or branched from the sheet pipe 70, and a cooling discharge port may be provided in this. This improves the fire prevention, fire resistance, heat resistance, etc. of the first cover sheet 66 and the second cover sheet 68, and enables the use of sheets of a lower grade for these performances, thereby reducing costs.

[0091] (f3. Sheet manufacturing method 2) Next, a method for manufacturing the sheet body 20 (20b) shown in Fig. 8 will be described. The sheet body 20 (20b) in Fig. 8 is characterized in that the extinguishing agent flow path 60 is formed by the stitching portion 64 without using the sheet piping 70 shown in Fig. 5.

[0092] Figure 9 shows a method for manufacturing the sheet body 20 (20b) of Figure 8. First, a first cover sheet 66, a first waterproof sheet 84, a second waterproof sheet 86, and a second cover sheet 68 of a predetermined size are prepared. The first cover sheet 66 and the second cover sheet 68 are the same as those shown in the manufacturing method of Figure 5, and the first waterproof sheet 84 and the second waterproof sheet 86 are made of a cloth-like material such as waterproof polyester used for umbrella cloth, for example, similar to the sheet piping 70 shown in the manufacturing method of Figure 5.

[0093] An extinguishing agent supply port 62 is arranged at the center of the upper end of the first waterproof sheet 84 in correspondence with the extinguishing agent flow path 60, and pre-formed through holes 88, 90 corresponding to the extinguishing agent discharge port 32 of the extinguishing agent flow path 60 are opened in the first waterproof sheet 84 and first cover sheet 66 facing the area to be extinguished so that they are in the same position when the sheet body 20 (20b) is completed.

[0094] The first waterproof sheet 84 and the first cover sheet 66 are overlapped with the through holes 88, 90 aligned, and then the extinguishant discharge port 32 is attached and fixed as shown in Figures 10(A), (B), and (C). This extinguishant discharge port 32 has the same structure as the extinguishant discharge port 32 shown in Figures 7(A), (B), and (C), and is composed of a base 74 with an upstanding screw shaft 78 and a clamping ring 76 with a screw hole 80, with a discharge hole 82 passing through the screw shaft 78. The first waterproof sheet 84 is placed on the back side of the first cover sheet 66 in place of the sheet piping 70 in Figure 7, and is clamped and fixed.

[0095] With the first waterproof sheet 84 and the first cover sheet 66 secured by the extinguishing agent discharge port 32, the second waterproof sheet 86 and the second cover sheet 68 are overlapped on the first waterproof sheet 84 side as shown in Fig. 9, and in this state, as shown in Fig. 8, sewing is performed using, for example, a sewing machine with waterproof thread to form a seam 64, thereby creating the extinguishing agent distribution path 60. Furthermore, with the sheets overlapped, the edges of the sheets are sewn together at the seam 64, which integrates them into the sheet body 20 (20b).

[0096] The sheet body 20 (20b) of Fig. 8 produced in this manner has, as described above, the extinguishing agent flow path 60 formed by sewing together the first cover sheet 66, the first waterproof sheet 84, the second waterproof sheet 86, and the second cover sheet 68 in a state where they are stacked together, at seams 64 using, for example, a sewing machine with waterproof thread. The extinguishing agent flow path 60 is normally in a collapsed state as shown in Fig. 11(A), but when the extinguishing agent 46 is supplied, it expands to increase its cross-sectional area as shown in Fig. 11(B), allowing the extinguishing agent 46 to flow.

[0097] In Figure 8, the seams 64 are doubled (two rows of seams) to improve the airtightness of the extinguishing agent distribution channel 60, but when tap water is supplied as a fire extinguishing agent, a small amount of water may leak from the seams. However, the tap water leaking from the extinguishing agent distribution channel 60 wets the sheet body 20 (20b), thereby improving the fire prevention, fire resistance, heat resistance, heat insulation, flame insulation, and smoke insulation properties against fire.

[0098] In this way, as wetting means (cooling means) for wetting and cooling the first cover sheet 66 and the second cover sheet 68, a cooling outlet may be provided in the extinguishant flow path 60 formed by the stitching 64, separate from the extinguishant outlet 32. The cooling outlet may be formed by adjusting the stitching 64 forming the extinguishant flow path 60, for example, so that the stitch spacing of the seam is partially increased, or by skipping a seam in part and sewing, to form a gap. Also, a flow path provided with a cooling outlet (cooling flow path) may be provided separate from the extinguishant flow path 60.

[0099] [g. Retention Means and Deployment Means] Next, we will explain in more detail the holding means and deployment means for the sheet body provided in the fire extinguishing means 18. As shown in Figures 12(A) and (B), the fire extinguishing means 18 of this embodiment includes holding means and deployment means.

[0100] (g1. Retention structure and deployment structure) The holding means normally holds the sheet body 20 in an undeployed state, and the deployment means deploys the sheet body 20 in the event of a fire in the area to be extinguished, supplies extinguishing agent to the extinguishing agent distribution path 60 of the deployed sheet body 20, and releases it from multiple extinguishing agent discharge ports 32.The configuration and structure are arbitrary, but it is composed, for example, of a holder 22, a sheet fixing portion 93, a sheet holding member 94 which is the holding means, and a sheet holding release portion 96 which is the deployment means.

[0101] Holder 22 is a box-shaped storage means with its longitudinal direction in the horizontal direction (left-right direction), and constitutes a fixing part that is attached to the front peripheral part or the like of range hood 12. One end of sheet body 20 is fixed to holder 22 by sheet fixing part 93, and normally, in an unexpanded state wound up in a roll, it is held in a suspended state at multiple points below holder 22 by sheet holding members 94 made of wire or rope.

[0102] One end of the sheet holding member 94 is fixed to the holder 22, and the other end is detachably held by a sheet holding release part 96 on the opposite side of the holder 22 (opposite the sheet fixing part 93) through the underside of the wound outer periphery of the sheet body 20. The sheet holding release part 96 is activated by the supply of extinguishant from the extinguishant piping 26, and releases the holding of the sheet holding member 94.

[0103] 12(C) and 12(D), when the sheet holding release section 96 releases the holding of one end of the sheet holding member 94, the sheet body 20 unfolds vertically while the other end (the lower end when unfolded) side falls under its own weight while one end (the upper end) side of the sheet body 20 is fixed to the holder 22. Furthermore, if a predetermined weight member is provided on the lower end side of the sheet body 20, it is possible to assist in preventing the lower end side of the sheet body 20 from falling and in stabilizing the sheet body 20 after unfolding.

[0104] (g2. Seat retention release part) The sheet retention release unit 96, which releases and deploys the sheet body 20 that is held in a non-deployed state, will now be described in more detail. The configuration and structure of this sheet retention release unit 96 are arbitrary, but as an example, as shown in Figure 13(A), an actuator 98 is provided that operates when fire extinguishing agent is supplied into the holder 22.

[0105] 13(B), for example, the actuator 98 has a piston 102 slidably mounted in a cylinder 100 via a return spring 106, and a cylinder chamber 100a is formed on one side of the piston 102. The cylinder chamber 100a communicates with the fire extinguishant piping 26 via an extinguishant supply port 108, and is provided with an automatic drain valve 103. The automatic drain valve 103 closes when the pressure in the cylinder chamber 100a exceeds a predetermined pressure as a result of the supply of fire extinguishant, and opens when the pressure in the cylinder chamber 100a falls below the predetermined pressure.

[0106] The piston 102 is coaxially provided with a rod 104. An opening 112 is provided from the front to the bottom of the holder 22, making the tip side of the rod 104 visible, and an operating stick 110 provided at a predetermined position on the rod 104 is exposed on the front side of the holder 22 so as to be operable from the outside.

[0107] When the sheet holding member 94 is held on the rod 104, the operating stick 110 is operated to move the rod 104 to the left, and a retaining ring 94a, which is formed by tying the tip of the sheet holding member 94, such as a wire, in a loop shape, is passed through the rod 104 to hold the sheet body 20 wound in a roll shape.

[0108] In the event of a fire, extinguishant is supplied from the extinguishant piping 26 to the cylinder chamber 100a via the extinguishant supply port 108, causing the piston 102 to stroke leftward against the return spring 106, and the rod 104 comes out of the retaining ring 94a, whose leftward movement is restricted by the lower part of the opening 112. The sheet body 20 is released from the sheet holding member 94 and falls under its own weight, deploying vertically.

[0109] The sheet holding release unit 96 is not limited to the above, and may be configured to drive an electromagnetic solenoid or the like in response to a control signal from a controller 45 provided in the extinguishing agent supply means 16 shown in Figure 2, thereby releasing the holding of the sheet holding member 94 and deploying the sheet body 20.

[0110] Other appropriate structures can be applied as the sheet deployment structure of the fire extinguishing means 18. For example, a structure in which the sheet body 20 is wound around a rotating shaft like a roller blind and deployed by releasing the rotation shaft may be used, or a structure in which the sheet body 20 is unwound and rewound by motor drive may be used. Also, a structure in which the sheet body 20 is held in a bellows-like folded state like an accordion curtain and deployed by releasing the hold may be used.

[0111] Furthermore, in addition to the ladder-shaped arrangement shown in Figures 4 and 8, the extinguishing agent flow path 60 of the sheet body 20 may be arranged in a rectangular shape, for example, surrounding the periphery of the ladder shape, so that it functions as a "weight" that assists in the deployment of the sheet body 20 when fire-extinguishing water is supplied as an extinguishing agent and also serves as an auxiliary means for stabilizing the deployed state.

[0112] [h. Specific details of the implementation form of the fire extinguishing equipment installed in the Buddhist altar] Next, as another example of a fire extinguishing system according to this embodiment, the specific contents of an embodiment in which the system is installed in a Buddhist altar will be described in detail.

[0113] (h1. Configuration of fire extinguishing equipment installed in Buddhist altars) 14(A) and 14(B), the fire extinguishing system of this embodiment is installed in a Buddhist altar 120 placed indoors. Buddhist altars vary in structure, type, and style, but for example, a double door 124 is provided at an opening 130 at the front of a main body 122, which is a housing, and the inside of the main body 122 basically has three tiers of platforms 125a to 125c. Below the lowest platform 125c is a cupboard 132 with a sliding door, and Buddhist altar implements such as a candlestick 126 and an incense burner 128 are placed on the platforms 125a to 125c, with a candle lit in the candlestick 126 and lit incense sticks placed in the incense burner 128.

[0114] The Buddhist altar 120 is equipped with the fire extinguishing system of this embodiment, which is composed of a fire detection means 14, a fire extinguishing agent supply means 16, and a fire extinguishing means 18, similar to the embodiment equipped in the range equipment of Figure 1.

[0115] (h2. Fire detection means) The fire detection means 14 detects fires caused by Buddhist altar accessories such as candlesticks 126 and incense burners 128 that are using fire placed on the Buddhist altar 120 (hereinafter referred to as "Buddhist altar fires"), and may have any function or configuration, but may be, for example, a known smoke detector that detects smoke caused by a fire and outputs a fire detection signal, as shown in Fig. 14, and is installed, for example, on the ceiling surface inside the main body 122. Note that the fire detection means 14 may be a heat detector, flame detector, etc., in addition to a smoke detector.

[0116] (h3. Fire extinguishing agent supply means) When the fire detection means 14 detects a fire at the Buddhist altar, the extinguishing agent supply means 16 converts the pressure energy of a specified gas, for example, compressed nitrogen, into kinetic energy of an extinguishing agent and supplies the extinguishing agent to the fire extinguishing means 18 via the extinguishing agent piping 26. The function and configuration of the extinguishing agent supply means 16 are arbitrary, but as an example, as shown in Figure 2, it is composed of a high-pressure container 34 which serves as the pressurizing means, a starting device 36 which serves as the starting means, and a pump means 38, and in this embodiment, it is stored in a box-shaped case made up of a main body 24a and a lid 24b, and is placed in a cupboard 132, for example, as shown in Figure 14.

[0117] (h4. Fire extinguishing methods) When extinguishing agent is supplied from extinguishant supply means 16 via extinguishant piping 26, fire extinguishing means 18 deploys sheet member 20 at opening 130 to separate the fire extinguishing area of ​​Buddhist altar 120 from the outside, and releases extinguishing agent from deployed sheet member 20 into the interior of Buddhist altar 120, which is the fire extinguishing area, to suppress and extinguish the fire. While any configuration or structure is possible, as an example, as shown in Fig. 14, fire extinguishing means 18 is comprised of sheet member 20, holder 22 equipped with deployment means, and extinguishing agent piping 26, and is arranged on the ceiling side above opening 130 of Buddhist altar 120, with details similar to those shown in Figs. 4 to 13. Furthermore, extinguishing agent piping 26, which connects extinguishant supply means 16 placed in cupboard 132 with fire extinguishing means 18, extends upright along the inner wall of main body 122.

[0118] (h5. Operation of fire extinguishing equipment installed in Buddhist altars) The fire extinguishing equipment thus installed in the Buddhist altar 120 operates as follows: As an example, as shown in Figures 15(A) and (B), if the candlestick 126 falls over and the candle fire spreads to the surrounding area, causing a fire at the Buddhist altar, and this fire at the Buddhist altar is detected by the fire detection means 14 installed on the ceiling or other surface inside the main body 122, the fire detection means 14 will output a fire detection signal to the fire extinguishing agent supply means 16 installed in, for example, the cupboard 132, to activate it, and the fire extinguishing agent supply means 16 will supply the fire extinguishing agent to the fire extinguishing means 18 via the fire extinguishing piping 26.

[0119] When extinguishing agent is supplied, the extinguishing means 18 releases the sheet body 20, which is normally in a rolled, unexpanded state, and the sheet body 20, which has one fixed end, falls downward and unfolds vertically, thereby partitioning and closing the opening 130 of the Buddhist altar 120.The extinguishing agent is then released from extinguishing agent discharge ports 32 (shown simply as triangles in Figure 15) located at various points on the unfolded sheet body 20 into the interior of the Buddhist altar 120 (within the area to be extinguished) partitioned off by the unfolding of the sheet body 20, thereby extinguishing and suppressing the Buddhist altar fire.

[0120] [i. Modifications of the present invention] A modified example of the present invention will now be described in detail.

[0121] (starting device) In the above embodiment, when the fire detection means 14 detects a fire inside the range equipment or the Buddhist altar, the starting device 36 is activated and the sheet body 20 is deployed to separate the area to be extinguished in the range equipment or the Buddhist altar from the outside, and extinguishing agent is released into the area to be extinguished from the extinguishing agent outlet 32 ​​of the sheet body 20, thereby automatically extinguishing the fire within the area to be extinguished. However, instead of the fire detection means 14, it is also possible to provide a means for manually activating the starting device 36, such as a push button switch, in an easy-to-operate position such as on the front of the range equipment, and to perform manual fire extinguishing by pressing the switch.

[0122] (Discharge outlet arrangement of sheet body) In the above embodiment, a plurality of extinguishant discharge ports 32 are arranged at various locations on one side of the sheet body 20 (the side of the area to be extinguished, such as the range equipment or Buddhist altar), but this is not limiting, and a plurality of extinguishant discharge ports 32 may be arranged at various locations on both sides of the sheet body 20. The fire extinguishing means 18 provided with this sheet body 20 is installed, for example, on the ceiling in the center of the interior space of the range equipment or Buddhist altar, and in the event of a fire, the sheet body 20 is deployed from above to below, and extinguishant is released on both sides from the plurality of extinguishant discharge ports 32 on each side of the sheet to extinguish and suppress the fire.

[0123] (Fire extinguishing measures for microwave equipment) In the above embodiment in which the fire extinguishing means is installed in the range equipment, the fire extinguishing means 18 is placed on the front periphery of the range hood 12, and in the event of a range fire, the sheet member 20 is deployed to separate the front boundary between the range hood 12 and the range stand 10, which is part of the boundary with the surrounding area excluding the closed surface made up of the wall, and fire extinguishing agent is released. However, the fire extinguishing means 18 may also be placed on each side of the periphery of the range hood 12, and the entire open boundary between the range hood 12 and the range stand 10, which is the area to be extinguished, may be separated by the deployment of the sheet member 20, so that it blocks off in almost all directions, including the wall, as viewed from the location of the fire. In this case, the sheet member 20 that separates the boundary with the surrounding area on both sides of the area to be extinguished between the range hood 12 and the range stand 10, may be a sheet of cloth only, without the fire extinguishing agent flow path 60 and the fire extinguishing agent discharge port 32.

[0124] (Fire extinguishing means to be installed) In the above embodiment, a range and a Buddhist altar are used as examples of targets for installing a fire extinguishing means, but the type, structure, location, etc. of the target for installing the fire extinguishing system of this embodiment are arbitrary, and include any suitable target that may be a location where a fire may break out. Furthermore, the target for application of the fire extinguishing system of the present invention is not limited to ordinary homes, but can also be applied to, for example, factories, schools, government offices, warehouses, and other suitable facilities.

[0125] (fire extinguishing agent distribution route) In the above embodiment, the two cover sheets (first cover sheet 66 and second cover sheet 68) constituting the sheet body 20 are fixed to each other by sewing, but the fixing method is not limited to this. The fixing method and fixing structure of the two cover sheets are arbitrary, and for example, instead of sewing the seam 64, they may be bonded with an adhesive. Furthermore, in the above embodiment, the two cover sheets are overlapped, but this is not limiting, and for example, one cover sheet may be folded in half.

[0126] In the above embodiment, the extinguishant flow path 60 is formed by the sheet piping 70 and the seam 64, but the extinguishant flow path may be formed by other configurations. For example, the extinguishant flow path may be formed by using a tube made of synthetic resin or the like.

[0127] Furthermore, in the above embodiment, the extinguishing agent flow path 60 is sandwiched between the first cover sheet 66 and the second cover sheet 68, but this is not limited to this. For example, the extinguishing agent flow path 60 (e.g., sheet piping 70) may be exposed on one or both sides of the sheet body 20 and fixed thereto.

[0128] (sheet body) Furthermore, the shape of the sheet body 20 is not limited to that described in the embodiment, and may be any suitable shape other than rectangular, such as circular, elliptical, polygonal, etc. Furthermore, the above embodiment takes as an example a case where one sheet body 20 is installed in one fire extinguishing target area, but the number of sheet bodies 20 installed in one fire extinguishing target area is arbitrary.

[0129] (others) Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited to the numerical values ​​shown in the above embodiments. [Explanation of symbols]

[0130] 10: Microwave stand 10a: Gas stove 12: Range hood 12a: Intake port 14: Fire detection means 16: Fire extinguishing agent supply means 18: Fire extinguishing means 20, 20a, 20b: Sheet 22: Holder 24a:Main body 24b: Lid 26: Fire extinguishing agent piping 28: Cooking pot 32: Fire extinguishing agent outlet 34: High-pressure vessel 35: Adapter 36: Starting device 38: Pump means 40: Airtight container 42: Gas inlet pipe 44: Fire extinguishing agent discharge pipe 45: Controller 46: Fire extinguishing agent 48,54: Cap 50: Divider 52: Fire extinguishing agent inlet 55,56: Signal line 60: Fire extinguishing agent distribution route 62: Fire extinguishing agent supply port 64: Suture section 66: First cover sheet 68: Second cover sheet 70: Sheet piping 72, 88, 90: Through holes 74: Bass 76: Clamping ring 78: Screw shaft 80: screw hole 81: Adhesive part 82: Release hole 84: First waterproof sheet 86: Second waterproof sheet 93: Seat fixing part 94: Sheet holding member 94a: Retaining ring 96: Seat retention release part 98: Actuator 100: Cylinder 100a: Cylinder chamber 102: Piston 103: Automatic drain valve 104: Rod 106: Return spring 108: Fire extinguishing agent supply port 110: Control stick 112:Aperture 120: Buddhist altar 122:Main body 124: Door 125a~125c: Platform 126: Candlestick 128: Incense burner 130: Opening 132: Cupboard

Claims

1. A fire extinguishing system that suppresses and extinguishes a fire that has occurred within a specified fire extinguishing area, a sheet body having a fire extinguishing agent outlet for discharging a fire extinguishing agent; a holding means for holding the sheet body in a non-deployed state; unfolding means for releasing the sheet body held by the holding means to unfold the sheet body; a fire extinguishing agent supply means for supplying the fire extinguishing agent to the sheet body and the deployment means; Equipped with Normally, the sheet body is held in a non-deployed state by the holding means, In the event of a fire within the area to be extinguished, the extinguishing agent is supplied from the extinguishing agent supply means to the deployment means, the deployment means is operated, and the holding means releases the sheet body from its undeployed state, thereby deploying the sheet body to separate the inside of the area to be extinguished from the outside, and the extinguishing agent is supplied from the extinguishing agent supply means to the sheet body, causing the extinguishing agent to be released into the area to be extinguished from the extinguishing agent discharge port of the sheet body in the deployed state.

2. The fire extinguishing system according to claim 1, A fire extinguishing system characterized in that the supply path of the extinguishing agent from the extinguishing agent supply means to the deployment means is a supply path branched off from the supply path of the extinguishing agent from the extinguishing agent supply means to the sheet body.

3. The fire extinguishing system according to claim 1 or 2, The fire extinguishing equipment is characterized in that the fire extinguishing area is a fire extinguishing area associated with a range equipment.

4. The fire extinguishing system according to claim 1 or 2, The fire extinguishing equipment is characterized in that the fire extinguishing area is a fire extinguishing area associated with a Buddhist altar.

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