JP7556740B2 - Fire extinguishing equipment - Google Patents

Description

The present invention relates to a fire extinguishing system that suppresses and extinguishes fires that occur in home appliances that use fire, such as range equipment and Buddhist altars.

Historically, statistically speaking, residential fires have mostly 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 equipment are known to deal with fires in ranges, for example (Patent Documents 1 and 2).

The fire extinguishing system 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.

The fire extinguishing equipment in Patent Document 2 has a bellows-shaped fire-resistant expansion body that is locked in a contracted state and placed around the periphery of the range hood. When a fire occurs, the fire extinguisher releases the lock on the fire-resistant expansion body and expands it to surround the range stand below, and the fire extinguishing agent is released into the space enclosed by the expanded fire-resistant expansion body to extinguish the fire.

JP 2009-172307 A Japanese Patent Application Publication No. 10-246482

However, such conventional fire extinguishing equipment has a problem in that it is complicated in structure and requires extra installation space because it has a separate structure for surrounding the object to be extinguished, such as a range, and for releasing the extinguishing agent from the extinguisher into the enclosed space.

In addition, these fire extinguishing systems use fire extinguishers as the extinguishing agent supply source, but because such extinguishers release large amounts of extinguishing agent due to their high discharge pressure, there is a problem that when the target of fire extinguishing is in a relatively small space attached to a range or Buddhist altar, i.e., when the enclosed space is relatively narrow, secondary damage can occur in which the extinguishing agent scattered around can stain or damage surrounding objects.

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

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

In addition, a fire extinguisher can be used as a source of extinguishing agent instead of a water supply system, but in that case, there is a problem that secondary damage occurs similar to that of the fire extinguishing systems in Patent Documents 1 and 2. Furthermore, fire extinguishers have a set service life, and when that service life expires, they must be replaced with new ones, which creates the problem of the effort and expense involved in maintenance.

The present invention aims 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 extinguishing agent.

(Fire extinguishing equipment for range equipment)
The present invention is a fire extinguishing system for suppressing and extinguishing a fire that has occurred in a range facility,
A fire extinguishing means including a sheet body provided with a fire extinguishing agent flow path having a fire extinguishing agent discharge port;
an extinguishing agent supplying means for supplying an extinguishing agent to the extinguishing agent distribution channel;
Equipped with
In the event of a fire within a specified extinguishing area associated with the range equipment, a sheet body is deployed to separate the inside of the extinguishing area from the outside, and extinguishing agent supplied from the extinguishing agent supply means via the extinguishing agent distribution path is discharged from the extinguishing agent discharge port into the extinguishing area.

(Fire extinguishing means for range equipment)
The range equipment is a range hood located on top of the range stand.
The fire extinguishing area is the spatial area between the range hood and the range stand.
The 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 inside and outside of the area to be extinguished so as to separate the inside and outside of the area to be extinguished, and an extinguishing agent is discharged into the area to be extinguished from the extinguishing agent discharge port of the deployed sheet body.

(Function of extinguishing agent supply means)
The extinguishing agent supplying means converts pressure energy of a predetermined gas into kinetic energy of extinguishing agent discharge, and supplies the extinguishing agent to the extinguishing means.

(Basic configuration of extinguishing agent supply means)
The fire extinguishing system includes a fire detection means for detecting a fire occurring within a fire extinguishing area,
The extinguishing agent supply means includes:
A pressurizing means filled with a predetermined gas;
an activation means for switching a discharge port side of the pressurizing means from a closed state to an open state to release a predetermined gas when a fire is detected in the fire extinguishing area by the fire detection means;
a pump means for introducing a predetermined gas released from the pressurizing means and supplying a fire extinguishing agent to the fire extinguishing means by the pressure of the introduced gas;
Equipped with.

(Specific configuration of extinguishing agent supply means)
The pressurizing means is a high-pressure container filled with a compressed gas or a liquefied gas as a predetermined gas,
the actuation means is a valve means for changing a flow path on the discharge port side of the high-pressure container from a closed state to an open state,
The pump means comprises:
A sealed container containing a fire extinguishing agent;
a gas introduction pipe for introducing the gas released from the high pressure vessel into the sealed vessel;
an extinguishing agent discharge pipe that discharges an extinguishing agent from a sealed container whose inside is pressurized by the pressure of a predetermined gas introduced from a gas introduction pipe into a target area for extinguishing a fire;
Equipped with.

(Configuration of fire extinguishing means)
The means of extinguishing the fire are
A fire extinguishing agent supply port;
A sheet body having a fire extinguishing agent flow path with a fire extinguishing agent discharge port;
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 bring the sheet body into an unfolded state;
Equipped with
Under normal circumstances, the sheet body is held in an undeployed state by the holding means, and in the event of a fire within the area to be extinguished, the sheet body is deployed by the deployment means to separate the area to be extinguished from the outside, and extinguishing agent is supplied to the extinguishing agent distribution path via the extinguishing agent supply port and released into the area to be extinguished from the extinguishing agent discharge port.

(First sheet body structure)
The sheet body has a first cover sheet, a second cover sheet, and a sheet pipe as a fire extinguishing agent flow path,
The sheet piping is formed to be collapsible and deformable, and is disposed between the first cover sheet and the second cover sheet.

(Second Sheet Body Structure)
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 the first cover sheet, the first waterproof sheet, the second waterproof sheet and the second cover sheet so as to form an extinguishing agent distribution path between the first waterproof sheet and the second waterproof sheet, and an extinguishing agent discharge outlet is provided on at least one of the first cover sheet and first waterproof sheet side and the second cover sheet and second waterproof sheet side of the extinguishing agent distribution path.

(Cloth-like body)
Of the first cover sheet and the second cover sheet, at least the one facing the area to be extinguished when deployed is a cloth-like material having fire resistance, fire resistance, heat resistance, heat insulation, flame insulation, smoke insulation or flame retardancy.

(Fire extinguishing equipment for Buddhist altars)
The fire extinguishing means is installed in place of the range equipment and corresponds to the Buddhist altar.
When a fire occurs in an area to be extinguished associated with a Buddhist altar, a sheet body is deployed to separate the inside of the area to be extinguished from the outside, and an extinguishing agent supplied from an extinguishing agent supply means via an extinguishing agent distribution path is discharged from an extinguishing agent discharge port into the area to be extinguished.

(Methods of extinguishing a Buddhist altar fire)
The fire extinguishing area is a predetermined spatial area of the Buddhist altar surrounded by a predetermined frame structure,
The extinguishing means is installed at a predetermined position of the frame structure, and 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 discharged into the area to be extinguished from the extinguishing agent discharge port of the deployed sheet body.

(Fire extinguishing equipment)
A fire extinguishing system that suppresses and extinguishes a fire that has occurred within a specified fire extinguishing area,
A fire extinguishing means including a sheet body provided with a fire extinguishing agent flow path having a fire extinguishing agent discharge port ;
an extinguishing agent supplying means for supplying an extinguishing agent to the extinguishing agent distribution channel;
Equipped with
The extinguishing agent discharge port has an opening provided at least on the side of the sheet body in the deployed state toward the fire target area and open toward the fire target area,
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 supplied from the extinguishing agent supply means via an extinguishing agent distribution path is discharged from the extinguishing agent discharge port into the area to be extinguished from the sheet body side toward the area to be extinguished .

(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 an extinguishing means including a sheet body with an extinguishing agent flow path having an extinguishing agent discharge outlet, and an extinguishing agent supply means for supplying an extinguishing agent to the extinguishing agent flow path, and the sheet body is deployed to separate a specified extinguishing area associated with the range equipment from the outside, and the extinguishing agent supplied from the extinguishing agent supply means via the extinguishing agent flow path is discharged from the extinguishing agent discharge outlet into the extinguishing area, making it easy to install and maintain, and enabling efficient suppression and extinguishing of fires with a small amount of extinguishing agent discharged.

(Effect of fire extinguishing measures of range equipment)
In the range equipment, a range hood is placed on top of the range stand, the area to be extinguished is the spatial region between the range hood and the range stand, the 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 on at least a part of the boundary between the inside and outside of the area to be extinguished so as to separate the inside and outside of the area to be extinguished, and an extinguishing agent is discharged into the area to be extinguished from the extinguishing agent discharge port of the deployed sheet body, so that both the partitioning function and the extinguishing function of the range equipment are realized by the deployment of the sheet body, the equipment configuration is simplified, and the installation space and costs can be reduced.Furthermore, the discharge of the extinguishing agent from the deployed sheet body makes it possible to reliably suppress and extinguish a fire in the range equipment at an early stage.

(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. Since there is no need to supply extinguishing agent from an external extinguishing agent supply source, the fire extinguishing equipment can be installed simply and easily on the range stand.

(Effects of the basic configuration of the extinguishing agent supply means)
In addition, the fire extinguishing equipment is equipped with fire detection means for detecting a fire that occurs within the area to be extinguished, and the extinguishing agent supply means is equipped with pressurizing means filled with a specified gas (filled with an inert gas such as nitrogen in a compressed state), a starting means for switching 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 for introducing the specified gas released from the pressurizing means and supplying the extinguishing agent to the extinguishing means by the pressure of the introduced gas.Therefore, the extinguishing agent contained 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 facility, and the extinguishing agent supply means can be simply and easily installed in the range equipment or its vicinity.

(Effects of specific configurations of extinguishing agent supply means)
The pressurizing means is a high-pressure container filled with a gas such as a compressed gas, liquefied gas, or the like, such as nitrogen or carbon dioxide. For example, a mini gas cartridge, which is small, low-cost, and easy to handle, 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, which easily changes the flow path on the discharge port side of the high-pressure container from a closed state to an open state.

The pump means contains an extinguishing agent, such as tap water, in a container, such as a polyethylene tank, and seals it. 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, generating pressure to supply the extinguishing agent to the extinguishing means. This pressure causes the sheet body to unfold, and the extinguishing agent can be discharged from the extinguishing agent outlet through the extinguishing agent discharge pipe. This has a simple structure, is low cost, and operates reliably to supply the extinguishing agent.

In addition, the amount of extinguishing agent discharged by the extinguishing means is determined by the capacity of the container that holds the extinguishing agent, and can be 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 discharging a large amount at high pressure, as occurs when using a fire extinguisher.

(Effect of the configuration of fire extinguishing means)
In addition, the extinguishing means comprises a sheet body having an extinguishing agent supply port and an extinguishing agent flow path having an extinguishing agent discharge port, a holding means for holding the sheet body in a non-deployed state, and a deployment means for releasing the holding by the holding means to put 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 inside of the area to be extinguished from the outside. By supplying extinguishing agent to the extinguishing agent flow path via the extinguishing agent supply port and discharging it from the extinguishing agent discharge port into the area to be extinguished, surface release is possible, and a wider release range can be secured compared to conventional point release where the installation location is the release point. Furthermore, 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.

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

In addition, the sheet is deployed downward from the range hood, and the extinguishing agent is discharged from the extinguishing agent outlet in a direction perpendicular to (horizontal) the deployed sheet surface, allowing the extinguishing agent to reach positions hidden when viewed from above the target of extinguishing, ensuring that the fire is contained and extinguished.

In addition, because the sheet body equipped with the extinguishing agent flow path and extinguishing agent discharge port is flexible, the holding means allows the sheet body to be normally kept in a non-expanded state, for example rolled up, and installed in a position that does not get in the way when the microwave oven is in use. Even when the extinguishing means is installed, it does not interfere with daily use of the microwave oven and requires little installation space.

In addition, when a fire occurs within the area to be extinguished, the deployment means releases the sheet body held by the holding means, causing one end of the sheet body, which has one fixed end, to fall downward and deploy vertically, partitioning a predetermined position at the boundary between the inside and outside of the area to be extinguished, and enabling the extinguishing of the fire to be suppressed by discharging extinguishing agent from extinguishing agent discharge ports located in various places on the deployed sheet body toward the area to be extinguished that has been partitioned off by the deployment of the sheet body.

The deployment means can release the sheet body from its undeployed state and deploy it using the pressure of the extinguishing agent supplied to the extinguishing means as a driving source. In addition, since no electrical release operation is required, the sheet can be deployed reliably to release the extinguishing agent even during a power outage.

(Effects of the first sheet body structure)
The sheet body has a first cover sheet, a second cover sheet, and a sheet piping as a fire extinguishing agent flow path, and the sheet piping is formed so as to be freely crushable and deformable, and is arranged 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 having a fire extinguishing agent flow path and an extinguishing agent discharge port.

(Effects of the second sheet body 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 the first cover sheet, the first waterproof sheet, the second waterproof sheet and the second cover sheet so as to form an extinguishing agent flow path between the first waterproof sheet and the second waterproof sheet, and an extinguishing agent discharge outlet is provided on at least one of the first cover sheet and first waterproof sheet side and the second cover sheet and second waterproof sheet side of the extinguishing agent flow path, so that the formation of the extinguishing agent flow path and the integration of the stacked sheet bodies are achieved simultaneously by sewing, and a flexible sheet body equipped with an extinguishing agent flow path and an extinguishing agent discharge outlet can be made even more simply and easily, and since mass production is also easy, manufacturing costs can be further reduced.

(Effect of cloth-like body)
In addition, of the first cover sheet and the second cover sheet, at least the one facing the area to be extinguished when deployed is a cloth-like material that has fire resistance, fire resistance, heat resistance, heat insulation, flame insulation or smoke insulation properties, and therefore can continue to release fire extinguishing agent without being burned even when exposed to heat or flames from a fire, and when installed and deployed at a specified position on the boundary between the inside and outside of the area to be extinguished, it makes it possible to prevent the spread of fire by providing flame, heat and smoke insulation to the outside of the area to be extinguished.

(Effects of applying to Buddhist altars)
The extinguishing means is installed in place of a range equipment in correspondence with the Buddhist altar, and in the event of a fire within the extinguishing area associated with the Buddhist altar, a sheet body is deployed to separate the inside of the extinguishing area from the outside, and extinguishing agent supplied from the extinguishing agent supply means via the extinguishing agent distribution path is released from the extinguishing agent release outlet into the extinguishing area, thereby making it possible to detect a fire within the extinguishing area of the Buddhist altar early and reliably suppress the fire.

(Effect of fire extinguishing measures for Buddhist altars)
The area to be extinguished is a specified spatial region surrounded by a specified frame structure of the Buddhist altar, and the extinguishing means is installed at a specified position of the frame structure.In the event of a fire within the area to be extinguished, a sheet body is deployed to separate the inside of 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 the fire to be suppressed and extinguished efficiently with a small amount of extinguishing agent released.

FIG. 1 is an explanatory diagram showing an embodiment of a fire extinguishing system installed in a range system. FIG. 2 is an explanatory diagram showing the structure of a fire extinguishing agent supplying means provided in the fire extinguishing system. FIG. 10 is an explanatory diagram showing the operation of the fire extinguishing system when a fire occurs in the range equipment. FIG. 2 is an explanatory diagram showing a sheet body provided in a fire extinguishing means of a fire extinguishing system in a deployed state. 1A to 1C are explanatory diagrams showing an embodiment of a manufacturing procedure of a sheet body. 6A and 6B are explanatory diagrams showing a sheet pipe forming 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 an expanded sheet pipe when an extinguishing agent is supplied. 7A and 7B are explanatory diagrams showing the structure of the extinguishing agent discharge port of the sheet body in 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 assembly view, and FIG. 7C shows an exploded assembly view in cross section. 1 is an explanatory diagram showing a sheet body in an unfolded state in which extinguishing agent flow paths are formed by stitching portions. FIG. 9A to 9C are explanatory diagrams showing a manufacturing procedure of the sheet body of FIG. 8. 10A shows the structure of the discharge outlet of the sheet body in FIG. 8, FIG. 10B shows an exploded assembly view, and FIG. 10C shows an exploded assembly view in cross section. 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 in a collapsed state under normal conditions, and FIG. 11B shows the extinguishing agent flow path in an expanded state when the extinguishing agent is flowing. 12A is a front view of the sheet body held in a non-deployed state under normal circumstances, FIG. 12B is a side view, FIG. 12C is a front view of the sheet body deployed in the event of a fire, and FIG. 12D is a side view. 13A and 13B are explanatory views showing a sheet retention releasing portion provided on the deployment means in FIG. 12, in which FIG. 13A shows the external appearance and FIG. 13B shows a cross section. FIG. 1 is an explanatory diagram showing an embodiment of a fire extinguishing system installed in a Buddhist altar. FIG. 10 is an explanatory diagram showing the operation of the fire extinguishing system when a fire breaks out in a Buddhist altar.

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

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

The "fire extinguishing target area" is a concept that includes a specific spatial area associated with, for example, a range or Buddhist altar that uses fire in a house, and "within the fire extinguishing target area" is a concept that includes the spatial area inside the fire extinguishing target area of the range or Buddhist altar, etc.

In addition, "suppressing and extinguishing a fire" combines the concept of suppressing a fire with another concept of extinguishing a fire. For example, suppressing a fire is the concept of suppressing the spread of a fire, the burning speed of a fire, or the scale of a fire, while extinguishing a fire is the concept of putting out the burning. Of course, it also includes cases where only one of these is done.

The fire extinguishing system of this embodiment includes a fire detection means, a fire extinguishing agent supply means, and a fire extinguishing means.

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 or Buddhist altar, and is a concept that includes, for example, detectors, heat detectors, smoke detectors, flame detectors, smoke sensors, heat sensors, etc.

The "extinguishing agent supply means" is a device that converts the pressure energy of a specified gas into kinetic energy of an extinguishing agent and supplies it to the 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 "pressure energy of the gas" means the pressure at which an inert gas, such as compressed nitrogen, tries to expand.

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 that introduces high pressure, for example compressed nitrogen, into a sealed container that contains the extinguishing agent, pressurizes the extinguishing agent, and discharges it to the outside.

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

The "fire extinguishing means" is a device that, when extinguishing agent is supplied from the extinguishing agent supply means, deploys a sheet body to separate a specified position at the boundary between the inside and outside of the area to be extinguished, such as a range or Buddhist altar, and releases extinguishing agent from the deployed sheet body into the area to be extinguished.

Here, the term "sheet body" refers to a body that has a thickness that allows flexibility and a certain 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-deployed state and released from the non-deployed state to be placed in an unfolded state.

In addition, the "fire extinguishing target area" refers to the spatial area 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 surface and an open boundary area around it; in the case of a Buddhist altar, it refers to a specified spatial area surrounded by a specified frame structure of the altar, for example, the inside of the altar, surrounded by a closed section made up of a housing and an opening with an open front side.

In addition, "deploying the sheet body to partition off a specified position on the boundary between the inside and outside of the fire extinguishing area" means, for example, if the fire extinguishing area is a range equipment, deploying the sheet body to partition off at least a part of the surrounding open boundary, for example the boundary on the front side of the range stand where a person is located, to block the boundary between the range stand and the front side; and if the fire extinguishing area is a Buddhist altar, deploying the sheet body to partition off the opening with an open front side to block the opening.

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

The term "extinguishing agent flow path" refers to a path through which the extinguishing agent flows that is provided on the sheet body in order to release the extinguishing agent from the sheet body, and is a concept that includes, for example, sheet piping that is arranged between cloth bodies. Note that "sheet piping" refers to, for example, flexible piping that can be crushed and deformed freely and expands when extinguishing agent flows through it.

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

The "extinguishing agent outlet" is an outlet for the extinguishing agent supplied from the extinguishing agent supply port to the extinguishing agent distribution path, and releases the 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 releases the extinguishing agent from multiple extinguishing agent outlets arranged at various locations on the side of the sheet body that is to be extinguished.

Here, "area release" refers to multiple extinguishing agent outlets (release points) being placed at various locations on the sheet surface, thereby discharging the extinguishing agent over an area from multiple locations; in other words, the extinguishing agent is released from extinguishing agent outlets placed at various locations on the sheet surface, thereby dispersing the extinguishing agent over a wide area on the sheet surface. In contrast, "point release" refers to the extinguishing agent being released from a single point, due to the existence of an extinguishing agent outlet (release point) in a single location (installation location).

The fire extinguishing means also includes a holding means and a deployment means. Here, the "holding means" refers to a means for holding the sheet body in an undeployed state at a predetermined position on a range equipment, Buddhist altar, etc. under normal circumstances, and the "deployment means" refers to a means for releasing the holding of the sheet body and deploying it in the event of a fire. For example, under normal circumstances, the sheet body is rolled up and placed in a predetermined position, for example, the front edge of a range hood placed on top of a range stand in the case of a range equipment, and when a fire occurs within the area to be extinguished, the sheet body is released from its holding 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, partitioning and sealing the boundary between the range stand and the surrounding area in front of where people are located.

In the following explanation, we will first explain the specifics of the fire extinguishing system of this embodiment when it is installed in a "range equipment," and then we will explain the specifics of the fire extinguishing system when it is installed in a "Buddhist altar."

[Specific Contents of the Embodiment]
Next, the specific contents of the embodiment of the fire extinguishing system will be described. The contents will be described in the following divided parts.
a. Specific contents of the embodiment of the fire extinguishing equipment installed in the range equipment a1. Configuration of the fire extinguishing equipment installed in the range equipment b. Fire detection means c. Fire extinguishing agent supply means c1. High pressure container c2. Starting device c3. Pump means d. Fire extinguishing means e. Operation of the fire extinguishing equipment installed in the range equipment f. Sheet body f1. Structure of the sheet body f2. Manufacturing method 1 of the sheet body
f3. Sheet body manufacturing method 2
g. Holding means and deployment means g1. Holding structure and deployment structure g2. Configuration of sheet holding release section h. Specific contents of embodiment of fire extinguishing equipment installed in Buddhist altar h1. Configuration of fire extinguishing equipment installed in Buddhist altar h2. Fire detection means h3. Fire extinguishing agent supply means h4. Fire extinguishing means h5. Operation of fire extinguishing equipment installed in Buddhist altar i. Modification of the present invention

[a. Specific content of the embodiment installed in a range 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 composed of a range stand and a range hood will be described.

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

The range stand 10 is equipped with multiple gas stoves 10a used for cooking, for example, and a range hood 12 is installed on the top of the range stand 10. The range hood 12 has an intake port 12a on the underside facing the range stand 10, and sucks in steam and smoke generated during cooking using the gas stoves 10a by rotating a built-in motor fan, and exhausts it to the outside through the wall behind it or the ceiling space above.

In the following explanation, the direction in which the range hood 12 and range stand 10 are positioned relative to one another 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.

[b. Fire Detection Means]
The fire detection means 14 detects a fire (hereinafter referred to as a "range fire"), for example, a fire caused by 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 caused by a fire and outputs a fire detection signal. The fire detection means 14 may be installed in any location, but may be installed at a predetermined position on the intake port 12a of the range hood 12, as shown in Fig. 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.

[c. Fire extinguishing agent supply means]
The extinguishing agent supply means 16 converts the pressure energy of a predetermined gas, for example compressed nitrogen, into kinetic energy of an extinguishing agent when the fire detection means 14 detects a range fire, and supplies the extinguishing agent to the extinguishing means 18 via the extinguishing agent piping 26. The extinguishing agent supply means 16 may have any configuration or structure, but as an example, as shown in FIG. 2, is composed of a high-pressure container 34 serving as a pressurizing means, a starting device 36 serving as a starting means, and a pump means 38, and in this embodiment, it is stored in a box-shaped case composed of a main body 24a and a lid 24b, and is disposed under the range stand 10, for example, as shown in FIG. 1.

(c1. High pressure vessel)
The high pressure container 34 is filled with a compressed inert gas such as nitrogen or carbon dioxide as a specified gas, and its structure and type are arbitrary, but as an example, a commercially available mini gas cartridge can be used as shown in Figure 2. A mini gas cartridge is generally bottle-shaped with a total length of 14 cm, a body diameter of 4 cm, and a neck diameter of 1.4 cm at the upper neck, and since the internal volume is 100 milliliters or less, it is exempt from the High Pressure Gas Safety Act, and the filling pressure is about 20 MPa at room temperature.

The high-pressure container 34 using a mini gas cartridge has an outlet formed at the top end of the neck sealed with a sealing plate, and a screw is 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.

(c2. Starting device)
1 detects a range fire, the starting device 36 operates to open the secondary side (discharge port side) and release the gas filled in the high-pressure container 34, and may have any configuration or structure, for example, a solenoid valve or the like. When the controller 45 receives a fire detection signal from the fire detection means 14 via a signal line 55, the controller 45 outputs a drive signal via a signal line 56 to operate the starting device 36 from a closed state to an open state.

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

(c3. Pump Means)
The pump means 38 introduces the gas released from the high-pressure container 34 when the starting device 36 operates from a closed state to an open state, pressurizes the contained extinguishing agent 46, and discharges it into the 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 an extinguishing agent discharge pipe 44.

The sealed container 40 contains a specified extinguishing agent 46, and may have any configuration or structure, but may be, for example, a box-shaped sealable polyethylene tank. The amount of extinguishing agent 46 that can be contained is also arbitrary, but for example, about 10 liters of extinguishing agent 46, such as tap water, can be contained. The extinguishing agent 46 contained in the sealed container 40 may be tap water mixed with a specified extinguishing agent, such as potassium carbonate. The sealed container 40 is also provided with an extinguishing agent inlet 52, which is sealed closed with a cap 54.

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

When the starting device 36 is operated from the closed state to the open state, and the gas filled in the high-pressure container 34 is introduced into the upper space inside the sealed container 40 from the end of the gas introduction pipe 42 via the gas piping 41, the internal pressure of the container 40 rises above atmospheric pressure, and the extinguishing agent 46 is discharged (pressurized) through the extinguishing agent discharge pipe 44 to the outside where the open end is at atmospheric pressure, and the extinguishing agent is supplied to the extinguishing means 18 provided in the range hood 12 in FIG. 1 via the extinguishing agent piping 26. The function of such a pump means 38 can be said to be a pump means that converts the pressure energy of the gas into kinetic energy to discharge (pressurize) the extinguishing agent 46.

[d. Fire extinguishing means]
The extinguishing means 18 shown in FIG. 1 deploys a sheet body 20 when extinguishing agent is supplied from the extinguishing agent supply means 16 via an extinguishing agent piping 26, and releases the extinguishing agent from the deployed sheet body 20 into the fire extinguishing area of the range equipment to suppress and extinguish the fire. Its 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 release port, a holder 22 equipped with a deployment means, and an extinguishing agent piping 26 equipped with an extinguishing agent supply port, and is arranged at the front peripheral part of the suction port 12a of the range hood 12 provided in the range equipment.

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

When extinguishing agent is supplied from extinguishing agent supply means 16 via extinguishing agent pipe 26, extinguishing means 18 releases sheet body 20, which is normally rolled up and unfolded, and the other end edge of sheet body 20, which has one fixed end edge, drops downward and unfolds vertically, partitioning the front boundary of the area to be extinguished, and extinguishing agent is discharged from extinguishing agent discharge ports 32 (shown as triangles in FIG. 3) located at various locations on the unfolded 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 horizontally between the unfolded sheet body 20 and the wall at the rear of the range stand 10.

[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.

(f1. Structure of sheet body)
The sheet body 20 of the extinguishing means 18 is deployed to separate a predetermined position on the boundary between the area to be extinguished and the surrounding area when extinguishing agent is supplied from the extinguishing agent supply means 16, and in the deployed state, releases extinguishing agent into the area to be extinguished, and while the configuration and structure are arbitrary, as an example, as shown in Fig. 4, it is configured with an extinguishing agent distribution path 60 and an extinguishing agent release port 32 provided in the sheet body 20 (20a). Here, as shown in the figure, the up-down direction of the 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.

When deployed, 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 located. By using a cloth-like material, it is flexible and can be easily unfolded by rolling it up into a roll. 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.

The extinguishing agent supply port 62 is connected to the extinguishing agent pipe 26 and serves as an inlet for the extinguishing agent to 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 inside the sheet body 20 (20a) shown by the dotted line.

The extinguishing agent flow path 60 is provided in the sheet body 20 (20a) and allows the extinguishing agent supplied from the extinguishing agent supply port 62 to flow. The configuration, structure and arrangement of the extinguishing agent flow path 60 are arbitrary, but for example, the extinguishing agent flow path 60 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-stage ladder shape, with the extinguishing agent supply port 62 located in the center of the top stage, and the extinguishing agent discharge ports 32 located in the second to fourth stages, for example in five locations each.

The extinguishing agent discharge ports 32 are arranged at various locations in the extinguishing agent flow path 60, and discharge the extinguishing agent supplied from the extinguishing agent supply ports 62 to the extinguishing agent flow path 60 toward the fire target area of the sheet body 20 (20a). The structure, arrangement, and number of the extinguishing agent discharge ports 32 are arbitrary, but as described above, for example, they are arranged in five locations each on the second to fourth stages of the extinguishing agent flow path 60.

Here, the extinguishing agent flow path 60, laid out to form a four-stage ladder shape, is formed to supply extinguishing agent from both ends of each outlet row element to the horizontal rows of extinguishing agent outlets 32 arranged in the second to fourth stages (each row of outlets arranged horizontally in each stage is considered to be one outlet row element, and the outlet row elements are arranged in three stages from the second to fourth stages to form the entire outlet row). This makes it possible to make the discharge pressure of the extinguishing agent supplied to the multiple extinguishing agent outlets 32 in the same row approximately uniform, and to align the discharge pattern (angle distribution) and discharge amount within the same row.

The shape of the extinguishing agent flow path 60 that supplies extinguishing agent to the multiple extinguishing agent discharge ports 32 is not limited to the ladder shape shown in FIG. 4, but may include other suitable shapes such as a tree shape or a tournament shape. In addition, if the discharge pressure of the multiple extinguishing agent discharge ports 32 is to be approximately uniform, the thickness (cross-sectional area) of the extinguishing agent flow path 60 may be made thicker on the extinguishing agent supply port 62 side and thinner as it moves away from the extinguishing agent supply port 62.

(f2. Sheet body manufacturing method 1)
The sheet body 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, cloth-like bodies having fireproofing, fire resistance, heat resistance, or flame retardancy, and can withstand high heat of, for example, 1200°C, and can be called fireproof sheets, fireproof curtains, fireproof screens, etc., but are not limited thereto. In addition, the first cover sheet 66 and the second cover sheet 68 each have heat-shielding, flame-shielding, or smoke-shielding properties. It is not prohibited to make only the cover sheet (first cover sheet 66) facing the fire extinguishing area fireproofing, fire resistance, heat resistance, flame retardancy, heat-shielding, or flame-shielding properties.

Next, prepare a sheet pipe 70 that is, for example, a four-stage ladder-shaped pipe. The sheet pipe 70 is made of a waterproof polyester cloth, such as that used for umbrella cloth, formed into a pipe shape and connected in a ladder shape (the connection is made to allow flow). As shown in the cross section of Figure 6(A), it can be crushed and deformed freely, and becomes flat when crushed from the first cover sheet 66 and second cover sheet 68 side. When the extinguishing agent 46 is supplied, it expands as shown in the cross section of Figure 6(B), forming the extinguishing agent flow path 60.

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 is formed in advance in the first cover sheet 66 corresponding to the extinguishing agent discharge port 32.

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 screw shaft 78 stands up from the base 74, and a discharge hole 82 passes through the screw shaft 78. The clamping ring 76 has a screw hole 80, and is fixed by screwing it onto the screw shaft 78.

As shown in FIG. 7(A), the base 74 is placed inside the sheet piping 70, and as an example shown in FIG. 7(C), it is glued and fixed with 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 piping 70 through the through hole 72 (see FIG. 5) of the first cover sheet 66, and the clamping ring 76 is screwed into it, so that the sheet piping 70 is clamped and fixed in place on the back side of the first cover sheet 66.

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 with the sheet pipe 70 in between. 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 a seam 64 shown by a two-dot chain line, as shown in FIG. 4 as an example, to complete the sheet body 20 (20a).

The discharge holes 82 provided in the base 74 of the extinguishing agent discharge port 32 determine the opening diameter of the extinguishing agent discharge port 32, and are, for example, about 3 to 4 millimeters in diameter. By discharging an extinguishing agent with a hole diameter of about 3 to 4 millimeters, such as extinguishing water, from multiple extinguishing agent discharge ports 32 arranged in various places on the sheet body 20, an overall surface discharge is achieved.

The discharge hole 82 penetrating the screw shaft 78 also 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 that spreads out in a cone shape will result, and an appropriate opening shape can be used depending on the required discharge pattern. Also, extinguishing agent discharge ports 32 with different opening shapes may be mixed as appropriate.

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

In addition to the extinguishing agent discharge port 32, a cooling discharge port may be provided in the sheet pipe 70 constituting the extinguishing agent 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 for forming a cooling flow path may be provided separately from the sheet pipe 70 or branched from the sheet pipe 70, and a cooling discharge port may be provided in the cooling sheet pipe. 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 lower grades for these performances, thereby reducing costs.

(f3. Sheet body manufacturing method 2)
Next, a method for producing 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.

Figure 9 shows a method for manufacturing the sheet body 20 (20b) of Figure 8. First, the first cover sheet 66, the first waterproof sheet 84, the second waterproof sheet 86, and the second cover sheet 68 of a specified 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 cloth-like bodies such as waterproof polyester used for umbrella cloths, for example, as in the sheet piping 70 shown in the manufacturing method of Figure 5.

The extinguishing agent supply port 62 is located in the center of the upper end of the first waterproof sheet 84 in correspondence with the extinguishing agent flow path 60, and the first waterproof sheet 84 and the first cover sheet 66 facing the area to be extinguished have preformed through holes 88, 90 that correspond to the extinguishing agent discharge port 32 of the extinguishing agent flow path 60 and are opened in the same position when the sheet body 20 (20b) is completed.

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

With the first waterproof sheet 84 and the first cover sheet 66 fixed by the extinguishing agent discharge port 32, as shown in Figure 9, the second waterproof sheet 86 and the second cover sheet 68 are overlapped on the first waterproof sheet 84 side, and in this state, as shown in Figure 8, a sewing operation is performed using, for example, a sewing machine with waterproof thread to form a seam 64, thereby creating an extinguishing agent distribution path 60. In addition, with the sheets overlapped, the edges of the sheets are sewn together at the seam 64, and the sheets are integrated into the sheet body 20 (20b).

The sheet body 20 (20b) in FIG. 8 thus produced has an extinguishing agent flow path 60 formed by sewing the first cover sheet 66, the first waterproof sheet 84, the second waterproof sheet 86 and the second cover sheet 68 together, for example, by a sewing machine using waterproof thread, as described above. The extinguishing agent flow path 60 is normally in a compressed 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.

In FIG. 8, the seams 64 are doubled (two rows of seams) to improve the airtightness of the extinguishing agent flow path 60, but when tap water is supplied as an extinguishing agent, a small amount of water may leak from the seams. However, the tap water leaking from the extinguishing agent flow path 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.

In this way, a cooling outlet may be provided in the extinguishing agent flow path 60 formed by the stitching 64 as a wetting means (cooling means) for wetting and cooling the first cover sheet 66 and the second cover sheet 68, separate from the extinguishing agent outlet 32. The cooling outlet may be formed by adjusting the stitching 64 forming the extinguishing agent flow path 60, for example, so that the stitching spacing of the stitching line is partially increased, or by skipping stitching in parts, forming a gap as the cooling outlet. In addition, a flow path (cooling flow path) in which a cooling outlet is provided may be provided separately from the extinguishing agent flow path 60.

[g. Holding means and deployment means]
Next, the sheet-holding means and the deployment means provided in the fire extinguishing means 18 will be described in more detail. As shown in Figs. 12(A) and 12(B), the fire extinguishing means 18 of this embodiment has a holding means and a deployment means.

(g1. Retention structure and deployment structure)
The holding means normally holds the sheet body 20 in a non-deployed state, and the deployment means deploys the sheet body 20 in the event of a fire in the area to be extinguished, and supplies extinguishing agent to the extinguishing agent distribution path 60 of the deployed sheet body 20 for release 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.

The holder 22 is a box-shaped storage means with its longitudinal direction being the horizontal direction (left-right direction) and constitutes a fixing part that is attached to the front peripheral part of the range hood 12. One end of the sheet body 20 is fixed to the holder 22 by a sheet fixing part 93, and under normal circumstances, the sheet body 20 is in a rolled, unexpanded state and is held in a suspended state at multiple points by sheet holding members 94 made of wire or rope on the underside of the holder 22.

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 rolled outer periphery of the sheet body 20. The sheet holding release part 96 is activated by the supply of extinguishing agent from the extinguishing agent piping 26, and releases the holding of the sheet holding member 94.

When the sheet holding release section 96 releases the holding of one end of the sheet holding member 94, as shown in Figures 12(C) and (D), while one end edge (upper end edge) of the sheet body 20 is fixed to the holder 22, the other end edge (lower end edge when unfolded) on the opposite side falls under its own weight and unfolds vertically. In addition, by providing a predetermined weight member on the lower end edge side of the sheet body 20, it is possible to assist in preventing the lower end edge of the sheet body 20 from falling and in stabilizing the sheet body 20 after unfolding.

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

As shown in FIG. 13B as an 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 extinguishing agent piping 26 via an extinguishing agent supply port 108, and is provided with an automatic drain valve 103. The automatic drain valve 103 closes when the extinguishing agent is supplied and the cylinder chamber 100a exceeds a predetermined pressure, and opens when the cylinder chamber 100a falls below the predetermined pressure.

The piston 102 is equipped with a rod 104 on the same axis. 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 and operable from the outside on the front side of the holder 22.

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 made of a wire or the like and has a loop-shaped end, is passed through the rod 104 to hold the sheet body 20 wound in a roll.

In the event of a fire, extinguishing agent is supplied from the extinguishing agent pipe 26 to the cylinder chamber 100a via the extinguishing agent supply port 108, and the piston 102 strokes leftward against the return spring 106, causing the rod 104 to come out of the retaining ring 94a, whose movement leftward 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.

The sheet retention 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 FIG. 2 to release the retention of the sheet retention member 94 and deploy the sheet body 20.

Other suitable structures can be used as the sheet deployment structure of the fire extinguishing means 18. For example, the sheet body 20 may be wound around a rotating shaft like a roll screen, and deployed by releasing the lock on the rotating shaft, or the sheet body 20 may be unrolled and retracted by motor drive. The sheet body 20 may also be held in a bellows-like folded state like an accordion curtain, and deployed by releasing the hold.

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, to assist in the deployment of the sheet body 20 when extinguishing water is supplied as an extinguishing agent, and to function as a "weight" that serves as an auxiliary means for stabilizing the deployed state.

[h. Specific details of the embodiment 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 content of an embodiment in which the system is installed in a Buddhist altar will be described in detail.

(h1. Configuration of fire extinguishing equipment installed in Buddhist altars)
14A and 14B, the fire extinguishing system of this embodiment is installed in a Buddhist altar 120 placed indoors. Buddhist altars come in a variety of structures, types, and styles, but for example, a double-leaf 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. Under the lowest tier, 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, a candle is lit in the candlestick 126, and lit incense is placed in the incense burner 128.

The Buddhist altar 120 is provided 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 provided in the range equipment of FIG. 1.

(h2. Fire detection means)
The fire detection means 14 detects fires caused by Buddhist altar accessories such as a candlestick 126 and an incense burner 128 that are in use and 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 may be installed, for example, on the ceiling surface inside the main body 122. Note that the fire detection means 14 may be a heat detector, a flame detector, or the like, in addition to a smoke detector.

(h3. Fire extinguishing agent supply means)
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 when the fire detection means 14 detects a fire at the Buddhist altar, and supplies the extinguishing agent to the extinguishing means 18 via the extinguishing agent piping 26. Its function and configuration 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 composed of a main body 24a and a lid 24b, and is arranged in a cupboard 132, for example, as shown in Figure 14.

(h4. Fire extinguishing means)
When extinguishing agent is supplied from the extinguishing agent supply means 16 through the extinguishing agent piping 26, the extinguishing means 18 deploys a sheet body 20 at the opening 130 so as to separate the inside of the area to be extinguished of the Buddhist altar 120 from the outside, and releases the extinguishing agent from the deployed sheet body 20 into the inside of the Buddhist altar 120, which is the area to be extinguished, to suppress and extinguish the fire. The configuration and structure of the extinguishing means 18 are arbitrary, but as an example, as shown in Figure 14, it is composed of a sheet body 20, a holder 22 equipped with deployment means, and an extinguishing agent piping 26, and is arranged on the upper ceiling side of the opening 130 of the Buddhist altar 120, and the details are the same as those shown in Figures 4 to 13. In addition, the extinguishing agent piping 26 that communicates between the extinguishing agent supply means 16 placed in the cupboard 132 and the extinguishing means 18 is erected along the inner wall of the main body 122.

(h5. Operation of fire extinguishing equipment installed in Buddhist altar)
15(A) and 15(B), if a candlestick 126 falls over and the candle flame spreads to the surrounding area, causing a fire at the altar, and this fire is detected by the fire detection means 14 installed on the ceiling surface or the like inside the main body 122, the fire detection means 14 outputs a fire detection signal to the extinguishing agent supply means 16 installed, for example, in the cupboard 132 to activate it, and the extinguishing agent supply means 16 supplies extinguishing agent to the extinguishing means 18 via the fire extinguishing piping 26.

When extinguishing agent is supplied, the extinguishing means 18 releases the sheet body 20, which is normally in a rolled, unexpanded state, and expands vertically while the other end edge of the sheet body 20, which has one fixed end edge, falls downward, partitioning and closing the opening 130 of the Buddhist altar 120. Extinguishing agent is then released from extinguishing agent outlets 32 (simply shown as triangles in Figure 15) located at various points on the expanded sheet body 20 into the interior of the Buddhist altar 120 (within the area to be extinguished) partitioned off by the expansion of the sheet body 20, thereby suppressing the Buddhist altar fire.

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

(Starting device)
In the above embodiment, when the fire detection means 14 detects a fire in 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 from the extinguishing agent discharge port 32 of the sheet body 20 into the area to be extinguished, 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 on the front of the range equipment, and to perform manual extinguishing by pressing the switch.

(Discharge outlet arrangement of sheet body)
In the above embodiment, a plurality of extinguishing agent outlets 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 the Buddhist altar), but the present invention is not limited to this, and a plurality of extinguishing agent outlets 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, in the ceiling part in the center of the interior space of the range equipment or the Buddhist altar, and in the event of a fire, the sheet body 20 is deployed from above to below, and extinguishing agent is surface-discharged to both sides from the plurality of extinguishing agent outlets 32 on each side of the sheet to extinguish and suppress the fire.

(Fire extinguishing means for range equipment)
In the above embodiment in which the extinguishing means is installed in the range equipment, the extinguishing means 18 is arranged at the front periphery of the range hood 12 , and when a range fire occurs, the sheet body 20 is deployed to partition the front boundary part that is part of the boundary part between the range hood 12 and the range stand 10 except for the closed surface formed by the wall surface, and the extinguishing agent is discharged. However, the extinguishing means 18 may also be arranged on each of the two sides of the periphery of the range hood 12, and all of the open boundary parts between the range hood 12 and the range stand 10 that are the area to be extinguished may be partitioned by deploying the sheet body 20, so that the entire area including the wall surface is blocked in almost all directions as seen from the place where the fire started. In this case, the sheet body 20 that partitions the boundary parts on both sides of the area to be extinguished between the range hood 12 and the range stand 10 may be a sheet of only a cloth body that does not have the extinguishing agent flow path 60 and the extinguishing agent discharge port 32.

(Target for installation of fire extinguishing means)
In the above embodiment, a range and a Buddhist altar are taken as examples of objects to which a fire extinguishing means is to be installed, but the type, structure, location, etc. of the object to which the fire extinguishing system of this embodiment is to be installed are arbitrary, and include any suitable object that may be a place where a fire may occur. In addition, the application of the fire extinguishing system of the present invention is not limited to ordinary houses, and it may be applied to, for example, factories, schools, government offices, warehouses, and other suitable facilities.

(Distribution route of fire extinguishing agent)
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. In the above embodiment, the two cover sheets are overlapped, but the present invention is not limited to this, and for example, one cover sheet may be folded in half.

In the above embodiment, the extinguishing agent flow path 60 is formed using the sheet piping 70 and the stitching 64, but the extinguishing agent flow path may be formed using other configurations. For example, the extinguishing agent flow path may be formed using a tube made of synthetic resin or the like.

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 limiting, and the extinguishing agent flow path 60 (e.g., sheet piping 70) may be fixed exposed on one or both sides of the sheet body 20, for example.

(Sheet body)
The shape of the sheet body 20 is not limited to that of the embodiment, and may be any suitable shape other than rectangular, such as circular, elliptical, polygonal, etc. The above embodiment has been described as an example in which one sheet body 20 is installed in one fire extinguishing area, but the number of sheet bodies 20 installed in one fire extinguishing area is arbitrary.

(others)
Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages of the present invention, and is not limited to the numerical values shown in the above embodiment.

10: Range stand 10a: Gas stove 12: Range hood 12a: Intake port 14: Fire detection means 16: Extinguishing agent supply means 18: Extinguishing means 20, 20a, 20b: Sheet 22: Holder 24a: Main body 24b: Lid 26: Extinguishing agent pipe 28: Cooking pot 32: Extinguishing agent outlet 34: High pressure container 35: Adapter 36: Starting device 38: Pump means 40: Sealed container 42: Gas introduction pipe 44: Extinguishing agent discharge pipe 45: Controller 46: Extinguishing agent 48, 54: Cap 50: Partition plate 52: Extinguishing agent injection port 55, 56: Signal line 60: Extinguishing agent flow path 62: Extinguishing agent supply port 64: Seam 66: First cover sheet 68: Second cover sheet Port 70: Sheet piping 72, 88, 90: Through hole 74: Base 76: Clamping ring 78: Screw shaft 80: Screw hole 81: Adhesive section 82: Release hole 84: First waterproof sheet 86: Second waterproof sheet 93: Sheet fixing section 94: Sheet holding member 94a: Retaining ring 96: Sheet holding release section 98: Actuator 100: Cylinder 100a: Cylinder chamber 102: Piston 103: Automatic drain valve 104: Rod 106: Return spring 108: Extinguishing agent supply port 110: Operation stick 112: Opening 120: Buddhist altar 122: Main body 124: Doors 125a to 125c: Altar 126: Candlestick 128: Incense burner 130: Opening 132: Cabinet

Claims (12)

A fire extinguishing system that suppresses and extinguishes a fire that has occurred within a specified fire extinguishing area ,
A fire extinguishing means including a sheet body provided with a fire extinguishing agent flow path having a fire extinguishing agent discharge port;
an extinguishing agent supply means for supplying an extinguishing agent to the extinguishing agent flow path;
Equipped with
The extinguishing agent discharge port is provided at least on the side of the sheet body in the deployed state toward the fire target area and has an opening open toward the fire target area,
This fire extinguishing equipment is characterized in that in the event of a fire within the area to be extinguished, the sheet body is deployed to separate the area to be extinguished from the outside, and the extinguishing agent supplied from the extinguishing agent supply means via the extinguishing agent distribution path is discharged from the extinguishing agent discharge outlet into the area to be extinguished from the sheet body side toward the area to be extinguished .
The fire extinguishing system according to claim 1,
A fire extinguishing system characterized in that the extinguishing agent supplying means converts pressure energy of a predetermined gas into kinetic energy for discharging an extinguishing agent and supplies the extinguishing agent to the extinguishing means.
The fire extinguishing system according to claim 2 ,
A fire detection means for detecting a fire occurring within the fire extinguishing area is provided,
The extinguishing agent supply means includes:
a pressurizing means filled with the predetermined gas;
an activation means for switching a discharge port side of the pressurizing means from a closed state to an open state when a fire is detected in the fire extinguishing area by the fire detection means, thereby discharging the predetermined gas;
a pump means for introducing the predetermined gas discharged from the pressurizing means and supplying the extinguishing agent to the extinguishing means by the pressure of the introduced gas;
A fire extinguishing system comprising:
The fire extinguishing system according to claim 3 ,
the pressurizing means is a high-pressure container filled with a compressed gas or a liquefied gas as the predetermined gas,
the actuation means is a valve means for changing a flow path on the discharge port side of the high-pressure container from a closed state to an open state,
The pump means comprises:
A sealed container containing the extinguishing agent;
a gas introduction pipe for introducing the gas released from the high pressure vessel into the sealed vessel;
an extinguishing agent discharge pipe that discharges the extinguishing agent from the sealed container, the inside of which is pressurized by the pressure of the predetermined gas introduced from the gas introduction pipe, into the area to be extinguished;
A fire extinguishing system comprising:
The fire extinguishing system according to claim 1,
The fire extinguishing means is
A fire extinguishing agent supply port;
A sheet body having a fire extinguishing agent flow path with a fire extinguishing agent discharge port;
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 bring the sheet body into an unfolded state;
Equipped with
This fire extinguishing equipment is characterized in that 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 sheet body is deployed by the deployment means to separate the inside of the area to be extinguished from the outside, and the extinguishing agent is supplied to the extinguishing agent distribution path via the extinguishing agent supply port and released into the area to be extinguished from the extinguishing agent discharge port.
A fire extinguishing system that suppresses and extinguishes a fire that has occurred within a specified fire extinguishing area ,
A fire extinguishing means including a sheet body provided with a fire extinguishing agent flow path having a fire extinguishing agent discharge port;
an extinguishing agent supply means for supplying an extinguishing agent to the extinguishing agent flow path;
Equipped with
the sheet body includes a first cover sheet, a second cover sheet, and a sheet pipe as the extinguishing agent flow path,
The sheet pipe is formed to be crushable and deformable, and is disposed between the first cover sheet and the second cover sheet ,
In the event of a fire within the area to be extinguished, the sheet body is deployed to separate the area to be extinguished from the outside, and the extinguishing agent supplied from the extinguishing agent supply means via the extinguishing agent distribution path is discharged from the extinguishing agent discharge outlet into the area to be extinguished .
A fire extinguishing system that suppresses and extinguishes a fire that has occurred within a specified fire extinguishing area ,
A fire extinguishing means including a sheet body provided with a fire extinguishing agent flow path having a fire extinguishing agent discharge port;
an extinguishing agent supply means for supplying an extinguishing agent to the extinguishing agent flow path;
Equipped with
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 the first cover sheet, the first waterproof sheet, the second waterproof sheet and the second cover sheet so as to form the extinguishing agent flow path between the first waterproof sheet and the second waterproof sheet, and the extinguishing agent discharge port is provided on at least one of the first cover sheet and first waterproof sheet side and the second cover sheet and second waterproof sheet side of the extinguishing agent flow path ,
In the event of a fire within the area to be extinguished, the sheet body is deployed to separate the area to be extinguished from the outside, and the extinguishing agent supplied from the extinguishing agent supply means via the extinguishing agent distribution path is discharged from the extinguishing agent discharge outlet into the area to be extinguished .
The fire extinguishing system according to claim 6 or 7 ,
A fire extinguishing system characterized in that of the first cover sheet and the second cover sheet, at least the one facing the fire extinguishing area when deployed is a cloth-like material having fire resistance, fire resistance, heat resistance, heat insulation, flame insulation, smoke insulation or flame retardancy.
The fire extinguishing system according to any one of claims 1 to 8,
The fire extinguishing system is characterized in that the fire extinguishing area is an area associated with a range equipment.
The fire extinguishing system according to claim 9 ,
The range equipment includes a range hood disposed on the top of the range stand,
The fire extinguishing target area is a spatial area between the range hood and the range stand,
The extinguishing means is installed at a predetermined position on the range hood side, and in the event of a fire within the area to be extinguished , the sheet body is deployed over at least a portion of the boundary between the area to be extinguished and the outside so as to separate the area to be extinguished from the outside, and the extinguishing agent is released into the area to be extinguished from the extinguishing agent release outlet of the deployed sheet body.
The fire extinguishing system according to any one of claims 1 to 8 ,
The fire extinguishing system is characterized in that the fire extinguishing area is an area associated with a Buddhist altar .
The fire extinguishing system according to claim 11 ,
The fire extinguishing target area is a predetermined spatial area of the Buddhist altar surrounded by a predetermined frame structure,
The fire extinguishing means is installed at a predetermined position of the frame structure, and in the event of a fire within the area to be extinguished, the sheet body is deployed to separate the area to be extinguished from the outside, and the extinguishing agent is released into the area to be extinguished from the extinguishing agent release port of the deployed sheet body.

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