JP7853482B2 - Fire extinguishing equipment and fire extinguishing equipment storage devices - Google Patents

Description

This invention relates to a fire extinguishing device and a fire extinguishing device storage device that extinguishes a fire by covering the source of the fire with a sheet.

Traditionally, fire extinguishers have been installed as fire-fighting devices in private homes and apartment buildings. Furthermore, fire-fighting sheets containing a fire-extinguishing agent that extinguishes fires by covering the source of the fire are also known (Patent Documents 1 and 2).

However, with fire extinguishers, operators may be unfamiliar with handling them, making it difficult to accurately direct the hose towards the source of the fire and release the extinguishing agent. Furthermore, the released extinguishing agent may scatter over a wider area than the source of the fire, resulting in insufficient firefighting efficiency. Additionally, there is a risk of secondary damage, such as soiling or damaging surrounding objects due to the scattered extinguishing agent.

Furthermore, conventional fire extinguishing sheets consist of a soluble sheet (film) with a fire extinguishing agent (such as powder or liquid) sealed inside. When placed over a fire, the heat from the fire causes the sheet to melt, releasing the sealed extinguishing agent and extinguishing the fire. However, because the amount of extinguishing agent sealed in a fire extinguishing sheet is relatively small, it is possible that sufficient fire extinguishing effect may not be achieved. Also, in cases of smoldering fires where there are no flames, the sheet may not receive enough heat from the fire source, resulting in a delay before it melts and releases the extinguishing agent, potentially rendering it ineffective in initial fire suppression.

To solve this problem, the applicant has proposed a fire extinguishing device in which a sheet covering the source of the fire is equipped with a fire extinguishing agent distribution path, and multiple discharge ports for releasing the fire extinguishing agent are arranged on one side of the sheet (the side facing the source of the fire when it is placed over the fire) corresponding to the fire extinguishing agent distribution path, and a fire extinguisher is connected to the sheet by a fire extinguishing agent supply hose (Patent Document 3).

With this type of sheet-based fire extinguishing device, when extinguishing a fire, the user places the sheet with one side facing down over the source of the fire. Then, by opening the valve on the fire extinguisher, the extinguishing agent is discharged from the outlets located on one side of the sheet. This allows for efficient and rapid discharge of the extinguishing agent to the fire source, regardless of the type of fire. The synergistic effect of the cooling effect of the extinguishing agent and the effect of blocking oxygen supply from outside the sheet (suffocation) by covering the fire source with the sheet enables more reliable fire extinguishing.

Japanese Patent Application Publication No. 54-125898 Japanese Patent Application Publication No. 10-201871 International Publication No. 2021-100766 Microfilm of Utility Model Application No. 52-065370 (Utility Model Publication No. 53-166598) Korean Registered Patent Publication No. 10-2171358

Incidentally, with conventional fire extinguishing devices that use a sheet, the sheet is normally placed in an unfolded state in the area to be extinguished. In the event of a fire, the user must pick up the sheet, unfold it, and then place it over the source of the fire. The unfolded state refers to, for example, the state when it is stored in a storage box, when it is hung on a stand, or when it is folded into a carrying bag-like state to save space.

However, with conventional fire extinguishing devices using a sheet, it is necessary to unfold the sheet from its non-deployed state and then cover the source of the fire from above. In a fire emergency where firefighting is urgent, there is a risk that the operator may rush the process of unfolding the sheet and covering the fire source, resulting in an inability to properly cover the fire source.

Therefore, conventional sheets have weights placed around their outer edges, allowing users to deploy them by throwing them like a net. This assists in the deployment process, enabling the sheet to be placed over the source of the fire.

However, throwing the sheet while unfolding it like a net requires a special grip and throwing technique, and since most users lack such experience, it is conceivable that they may not be able to properly unfold the sheet and cover the fire source.

The present invention aims to provide a fire extinguishing device and a fire extinguishing device storage device that allow users to easily and more reliably cover the source of a fire with a sheet, thereby extinguishing the fire, and also suppress the scattering of extinguishing agent into the surrounding area, thereby reducing secondary damage.

(Fire extinguishing equipment storage device)
The present invention is a fire extinguishing device storage device for storing a fire extinguishing device that normally has a non-extended state where it is rolled up in a rod shape, and which has a sheet body that unfolds from the non-extended state by rolling to cover the source of a fire when extinguishing a fire,
The device is characterized by having a sheet holder portion (holder 74 in this embodiment) that holds the sheet in an unfolded and upright state.

(Sheet support section)
The storage target is a fire extinguishing device that has a sheet body that is wound into a rod shape with a shaft member having a hollow section as the central axis, and in an unfolded state,
Furthermore, the fire extinguishing equipment storage device is characterized by having a sheet body support part (a support pole 84 in the embodiment) that rises from the bottom of the holder part and is fitted into the hollow part of the shaft member.

(Height of the seat support section)
The height of the seat support section shall be lower than the height of the seat when it is in an upright position.

(Cap part)
Furthermore, it includes a cap portion (cap 76 in this embodiment) that is detachably attached to the upper part of the sheet body held in the sheet body holder portion.

(Fire extinguishing agent supply device holder section and fire extinguishing agent piping holder section)
The storage targets include a fire extinguishing device that includes a sheet body, a fire extinguishing agent piping that supplies fire extinguishing agent to the sheet body, and a fire extinguishing agent supply device that supplies fire extinguishing agent to the sheet body via the fire extinguishing agent piping.
Furthermore,
A fire extinguishing agent supply device holder section (a fire extinguisher holder 78 in this embodiment) where the fire extinguishing agent supply device is placed,
A fire extinguishing agent pipe holder section (a pole 80 equipped with a hose holder 82 in this embodiment) is positioned with the fire extinguishing agent pipe wound around it,
Equipped with,
The sheet holder section, the fire extinguishing agent supply device holder section, and the fire extinguishing agent piping holder section are each independently mounted on a base.

(Fire extinguishing equipment)
In another embodiment of the present invention, a fire extinguishing device,
A sheet body having one side that can cover the source of the fire,
A fire extinguishing agent distribution route provided in the sheet body,
At least one surface of the sheet body is provided with an outlet corresponding to the fire extinguishing agent distribution path, for releasing the fire extinguishing agent supplied to the fire extinguishing agent distribution path,
One end of the fire extinguishing agent piping is connected to the fire extinguishing agent distribution route, and the piping supplies the fire extinguishing agent to the fire extinguishing agent distribution route.
The other end of the fire extinguishing agent piping is connected to a fire extinguishing agent supply device that supplies fire extinguishing agent to the fire extinguishing agent piping,
A storage compartment for storing the sheet body, fire extinguishing agent piping and fire extinguishing agent supply equipment,
Equipped with,
The fire source is covered with a sheet, with one side having a discharge port or the other side facing the fire source, and when the prescribed operation is performed with the fire extinguishing agent supply device, the fire extinguishing agent supplied from the fire extinguishing agent supply device to the fire extinguishing agent distribution route via the fire extinguishing agent piping is discharged from the discharge port to extinguish the fire.
The sheet body is
Normally, the shaft member is stored in the storage compartment in an unfolded, upright state, wound into a rod shape with the shaft member as the central axis.
During firefighting, it is removed from its storage compartment and rolled from its non-deployed state toward the source of the fire to unfold and cover the source of the fire.

Here, "surface discharge" refers to the distribution of fire extinguishing agent across a wide area of the sheet by having multiple discharge ports (discharge points) positioned at various locations on the surface from which the fire extinguishing agent is released. In other words, the fire extinguishing agent is released from discharge ports located at various points on the sheet surface, distributing it over a broad area.

(Basic effects)
In the fire extinguishing device of the present invention, the sheet body is normally positioned in an unextended state, rolled into a rod shape. When extinguishing a fire, the user can unfold the sheet body by rolling the rolled-up sheet body toward the source of the fire. Therefore, the sheet body can be unfolded easily and more reliably to cover the source of the fire without requiring a special grip or throwing technique like that of a throwing net.

Furthermore, by placing the sheet with one side facing the source of the fire and covering it, the user can open a fire extinguishing device, such as a fire extinguisher, and release the extinguishing agent from the outlets located on one side of the sheet. This efficiently releases the extinguishing agent onto the fire covered by the sheet, resulting in a synergistic effect of the cooling effect of the extinguishing agent and the effect of blocking oxygen supply from outside the sheet (suffocation) by covering it, enabling more reliable fire extinguishing. Additionally, it suppresses leakage and scattering of the extinguishing agent from the space covered by the sheet, enhancing the fire extinguishing effect and reducing secondary damage due to contamination of the surrounding area.

Furthermore, if discharge ports for releasing fire extinguishing agent are placed on one side of the sheet and on the other side opposite that side, the sheet can be deployed towards the fire source without having to consider which side should face the fire source. This avoids a situation where, when the sheet is placed to cover the fire source, the side with the discharge ports is not facing the fire source.

(Effect of unfolding the sheet while holding the end of the rolled-up section)
When the sheet is unfolded and placed over the source of the fire, the end of the sheet that faces the fire extinguisher is held in place as it unfolds. This makes it easier to determine the area to be covered by the unfolded sheet before unfolding it, and prevents the unfolded sheet from shifting away from the source of the fire, allowing the sheet to cover the source of the fire more reliably.

(The effect of a sheet body with one side rolled outwards)
Even when the sheet is rolled up into a rod shape and not fully deployed, users can recognize the side with the discharge port, preventing them from mistakenly deploying the sheet with the side without the discharge port facing the source of the fire.

(Effect of the sheet wrapped around the shaft member)
Furthermore, by keeping the sheet wrapped around the shaft member in an unfolded state, when the sheet is rolled toward the fire source, the inertial force of the shaft member allows the sheet to roll quickly and rapidly cover the fire source.

(Effect of the shaft member provided on the winding start end of the sheet body)
Furthermore, since the shaft member is provided on the side where the sheet body begins to be rolled up, when the sheet body is unfolded to cover the source of the fire and the fire extinguishing agent is released from the discharge port of the sheet body, the weight of the shaft member can suppress the sheet body from lifting up, thereby suppressing leakage and scattering of the fire extinguishing agent from the space covered by the sheet body, enhancing the fire extinguishing effect and reducing contamination of the surrounding area.

Furthermore, when the sheet and the shaft member are connected to each other by a first string-like member or a first net member, the shaft member will pull the unfolding sheet while rolling ahead of it. Therefore, the shaft member assists in the unfolding of the sheet, allowing for more reliable unfolding. Also, when using a net member, the process of winding up the sheet after use becomes easier compared to using a string-like member.

(Effects of manipulating the sheet body with the second string-like member)
Furthermore, the device is equipped with an operating section for user control, which is attached to the end of the rolled-up sheet body by a second string-like member. During firefighting, the user can operate the second string-like member via the operating section to roll and unfold the sheet body from its unfolded state and to move the position of the unfolded sheet body. This allows the user to move further away from the source of the fire by an amount corresponding to the length of the second string-like member, enabling them to operate the sheet body from a safe position relative to the fire source. Although the operation is performed at a distance from the fire source, increasing the likelihood that the sheet body will be unfolded at a position misaligned with the fire source, this problem is resolved by adjusting the position of the unfolded sheet body by operating the second string-like member via the operating section. If the sheet body has become too misaligned with the fire source to adjust its position, the user can retrieve the unfolded sheet body, rewind it, and throw it again. The same effect can be obtained by using a second net member instead of a second string-like member, but the process of rewinding the sheet body after use is easier compared to using a string-like member.

(Effect of the through-hole for the fire extinguishing agent piping in the control panel)
Furthermore, by inserting the fire extinguishing agent piping, which connects the fire extinguisher and the sheet body's fire extinguishing agent distribution path, through a through-hole in the control unit, the movement of the fire extinguishing agent piping can be restricted, preventing it from interfering with users handling the fire extinguishing equipment.

(Effect of the third string-like member of the sheet body)
Furthermore, the sheet is equipped with a third string-like member that allows the user to adjust the position of the unfolded sheet. This allows the user to easily and safely move the sheet without directly touching it by operating the third string-like member if the unfolded sheet is misaligned relative to the fire source.

(Effect of the weight on the sheet)
Furthermore, the sheet body can be configured such that, for example, weights are provided on at least a portion of the periphery of the unfolded sheet body. This allows the weights to further suppress the lifting of the sheet body when it is placed over the source of a fire and the extinguishing agent is released from the sheet body's discharge port. This suppresses leakage and scattering of the extinguishing agent from the space covered by the sheet body, thereby enhancing the fire extinguishing effect and reducing contamination of the surrounding area.

(Effectiveness of fire extinguishing methods)
The fire extinguishing method of the present invention provides the same effect as the fire extinguishing equipment described above, therefore its explanation is omitted.

This is an explanatory diagram showing an embodiment of a fire extinguishing device according to the present invention. This is an explanatory diagram showing the fire extinguisher connection section as it is located in Figure 1. This is an explanatory diagram showing an embodiment of the sheet manufacturing procedure. This is an explanatory diagram showing sheet piping that forms a fire extinguishing agent distribution path within a sheet body. Figure 3 is an explanatory diagram showing the structure of the discharge port of the sheet body. This is an explanatory diagram showing another embodiment of the sheet manufacturing procedure. Figure 6 is an explanatory diagram showing the structure of the discharge port of the sheet body. This is an explanatory diagram showing the sheet body manufactured using the procedure in Figure 6. Figure 8 is an explanatory diagram showing the fire extinguishing agent distribution route formed by stitching together the sheet material. This is an explanatory diagram showing an embodiment of a fire extinguishing device in which a sheet is rolled into a cylindrical shape. This is an explanatory diagram showing the arrangement of rolled-up sheet materials. This is an explanatory diagram showing an example of the use of a fire extinguishing device in which a sheet is rolled into a cylindrical shape. This is an explanatory diagram showing a sheet body with a shaft member secured by a suspension cord, and an example of its use. Figure 13 is an explanatory diagram showing the details of the shaft member used. This is an explanatory diagram showing an embodiment of a fire extinguishing device in which a handle is attached to a sheet body by an operating cord. Figure 15 is an explanatory diagram showing the sheet body, operating cord, and fire extinguishing agent supply hose in their unfolded state. This is an explanatory diagram showing an embodiment of a fire extinguishing device in which a shaft member and a handle are attached to a sheet body. This is an explanatory diagram showing another embodiment of the shaft member around which the sheet body is wound. This is an explanatory diagram showing an embodiment of a fire extinguishing device in which a position adjustment string is attached to a sheet body. Figure 19 is an explanatory diagram showing an example of how to use a fire extinguishing device. This is an explanatory diagram showing an embodiment of a fire extinguishing device in which a shaft member and a handle are attached to a sheet body with a net. This is an explanatory diagram showing an embodiment of a fire extinguishing device in which weights are attached to the front and rear edges of a sheet body.

The following describes in detail embodiments of the fire extinguishing device according to the present invention, based on the drawings. However, the present invention is not limited to the embodiments described below.

[Basic Concepts of the Embodiments]
The embodiment generally relates to a fire extinguishing device in which a user covers the source of the fire with a sheet to extinguish it. Here, "fire extinguishing device" refers to a device that extinguishes a fire by releasing or spraying a fire extinguishing agent, and the fire extinguishing device according to this embodiment comprises a sheet with a fire extinguishing agent distribution path and discharge port, fire extinguishing agent piping, and fire extinguishing agent supply device.

Furthermore, "source of fire" is a concept that includes the source of fire (source of combustion) and its surroundings. Also, "to cover" is not limited to covering the entire object (e.g., the source of fire), but also includes covering or partially covering the object. Finally, "extinguishing a fire" is a concept of suppressing or extinguishing combustion, and "suppression" means, for example, preventing the spread of fire, the rate of combustion, or the expansion of the scale of combustion.

A "sheet" is defined as a material having one surface capable of covering a fire source, equipped with a fire extinguishing agent distribution channel and, at least one surface, a discharge port corresponding to the fire extinguishing agent distribution channel. Normally, it is rolled up in a rod-like shape and unfolds when used for fire extinguishing by rolling towards the fire source, covering it completely. Its shape and size are arbitrary as long as it can cover the fire source, but the concept includes, for example, a thin (thick) flexible cloth-like material.

Here, "one side of the sheet" refers to the side that faces downwards (the side facing the fire source) when the user covers the fire source with the sheet. Furthermore, it is sufficient that a discharge port is provided on at least one side; discharge ports may be provided on one side of the sheet and on the other side opposite to that side. Naturally, if discharge ports are provided on both sides of the sheet, either side may face the fire source. Also, this does not prevent the discharge port from being provided on a side of the sheet that does not cover the fire source, for example.

Furthermore, the term "rolled into a rod shape" encompasses both hollow (tubular) rolls and solid rolls, and includes both rolls with one side facing outwards and rolls with one side facing inwards.

Furthermore, the "fire extinguishing agent distribution route" refers to the flow path within the sheet body for the fire extinguishing agent supplied from the fire extinguishing agent piping. This concept includes, for example, sheet piping positioned between the fabric-like elements that make up the sheet body. "Sheet piping" refers to, for example, flexible piping that can be easily compressed and deformed, and expands as the fire extinguishing agent flows through it.

Furthermore, a "discharge port" refers to the outlet for the fire extinguishing agent supplied to the fire extinguishing agent distribution route. It discharges the fire extinguishing agent from at least one side of the sheet material, for example, by discharging the fire extinguishing agent from multiple openings located at various points on one side of the sheet material.

Furthermore, the "sheet body" may be rolled and unfolded from a non-unfolded state while the end of the roll, located on the outer circumference, is held in place when it is rolled into a rod shape. Here, the "end of the roll" refers to the edge of the sheet body closest to the user who rolled the sheet body when it is rolled and unfolded to cover the source of the fire. The "held state" includes states where the sheet body is held by the user, or where it is fixed and held in place at any location within the fire-extinguishing area.

Furthermore, the "sheet body" may be wound around the shaft member in its unfolded state. Note that the sheet body wound around the shaft member will be wound in a cylindrical shape because the shaft member is located at its central axis.

Furthermore, a "shaft member" is a rod-shaped member around which the sheet material is wrapped. Its structure and size are arbitrary, as long as it can accommodate the sheet material. The term "rod-shaped" encompasses both hollow and solid rod-shaped members.

Furthermore, the shaft member may be provided on the inner circumference side of the starting point of the winding when the sheet is rolled into a rod shape. Here, the "starting point of the winding" refers to the edge of the sheet located farther away from the user who rolled the sheet when it was rolled and unfolded to cover the fire source.

The method of attaching the shaft member to the starting point of the sheet body is arbitrary, but for example, it can be attached by connecting the shaft member and the sheet body with a first string-like member or first net member of a predetermined length. Here, the "first string-like member" is, for example, a string made of bundled fibers using a material that has fire resistance, heat resistance, or flame retardancy, and the "first net member" is, for example, the first string-like member made into a net. Furthermore, although the method of connecting the shaft member and the sheet body is arbitrary, it is desirable to connect the shaft member and the sheet body in such a way that the central axis of the shaft member remains approximately perpendicular to the rolling direction of the sheet body until the rolling of the shaft member is completed, in order to pull the sheet body while it is being unfolded and to assist in the unfolding of the sheet body.

Furthermore, the "sheet body" may be provided with a third string-like member that allows the user to adjust the position of the sheet body after it has been unfolded. The "third string-like member" is conceptually the same as the "first string-like member."

Furthermore, the "sheet body" may be configured such that a weight is provided on at least a portion of its periphery when unfolded.

Furthermore, "fire extinguishing agent piping" refers to piping that supplies fire extinguishing agent to the fire extinguishing agent distribution path of the sheet body. Preferably, it is flexible and includes hoses, tubes, etc., made of materials such as rubber, synthetic resin, cloth or other woven fabrics, or composite materials thereof.

Furthermore, "fire extinguishing agent supply equipment" refers to devices that supply fire extinguishing agents to the fire extinguishing agent piping when a prescribed operation is performed by the user. This concept includes, for example, fire extinguishers that supply fire extinguishing agents such as liquid fire extinguishing agents, enhanced fire extinguishing liquids, and powder fire extinguishing agents.

Furthermore, the fire extinguishing device may also be equipped with an operating section for user control. The "operating section" refers to a mechanism that allows the user to roll and unfold the sheet from its non-unfolded state, and to move the unfolded sheet without touching it. Here, "moving the unfolded sheet" includes operations such as adjusting the unfolded sheet to an appropriate position relative to the source of the fire, or moving the sheet back to the user's hand.

Specifically, the operating unit is attached to the end of the sheet body that faces the fire extinguisher when it is unfolded and placed over the fire source, by a second string-like member or second net member of a predetermined length. The user operates the second string-like member or second net member via the operating unit to roll and unfold the sheet body from its unfolded state, and to move the position of the unfolded sheet body. Furthermore, the "second string-like member" and "second net member" are conceptually the same as the "first string-like member" and "second net member." The method of attachment between the operating unit and the sheet body is arbitrary, as long as the user can perform the aforementioned operations via the operating unit.

The following description explains the specific details of the fire extinguishing device's embodiment, assuming that the "source of fire" is "indoor equipment or devices that could be a source of fire," the "sheet body" is "wound around a shaft member with one side facing outwards in its unfolded state, and the shape of that side is rectangular," the "start and end points of the sheet body" are "the edges of the sheet body," the "discharge port" is "provided on one side of the sheet body and discharges the extinguishing agent across the surface," the "extinguishing agent piping" is "a flexible extinguishing agent supply hose," and the "extinguishing agent supply device" is "a fire extinguisher."

[Specific details of the embodiment]
The specific details of the embodiment will be explained as follows:
a. Overview of fire extinguishing equipment b. Sheet body b1. Fire extinguishing agent distribution route and fire extinguishing agent supply port b2. Discharge port b3. Buffer area c. Fire extinguishing agent piping d. Fire extinguishing agent supply device d1. Fire extinguisher d2. Fire extinguisher connection part e. Method of manufacturing the sheet body 1
f. Method for manufacturing sheet bodies 2
g. Installation and use of fire extinguishing equipment g1. Embodiment in which the sheet body is rolled into a cylindrical shape g2. Embodiment in which the shaft member is attached to the sheet body by a suspension string g3. Embodiment in which the handle is attached to the sheet body by an operating string g4. Embodiment in which the shaft member and handle are attached to the sheet body g5. Another form of the shaft member h. Embodiment in which the sheet body is provided with a position adjustment string i. Embodiment in which the shaft member and handle are attached to the sheet body by a net j. Embodiment in which weights are provided on the front and rear edges of the sheet body k. Modification of the present invention

[a. Overview of fire extinguishing equipment]
As shown in Figure 1, the fire extinguishing device 10 of this embodiment consists of a sheet body 12, a fire extinguishing agent supply hose 26 that functions as a fire extinguishing agent pipe, and a fire extinguisher 24 that functions as a fire extinguishing agent supply device. Here, Figure 1(A) shows the overall configuration of the fire extinguishing device of this embodiment, and Figure 1(B) shows the left side view of the sheet body.

Furthermore, the X-Y-Z directions shown in Figure 1 are mutually orthogonal. The X direction (left-right), Y direction (front-back), and Z direction (up-down) are defined such that when the user unfolds the sheet over the fire source, one side 12a of the sheet 12 becomes the bottom surface, the end of the rolled-up sheet becomes the front edge, and the beginning of the rolled-up sheet becomes the rear edge. Additionally, the +X side in the X direction is defined as the right side, and the -X side as the left side; the +Y side in the Y direction is defined as the front, and the -Y side as the rear; and the +Z side in the Z direction is defined as the top, and the -Z side as the bottom. This principle is also applied to Figures 2 through 18.

[b. Sheet body]
The sheet body 12 is designed to extinguish a fire by unfolding and covering the source of the fire, and then discharging a fire extinguishing agent across the surface. Its structure and configuration are arbitrary, but one example includes a fire extinguishing agent distribution path 14, a fire extinguishing agent supply port 16, and a discharge port 18.

The sheet 12 is, for example, a flexible cloth-like material. As shown in Figure 1(B), it is placed over the fire source with one side 12a facing the fire source (so that one side 12a faces the fire source), and the fire is extinguished by releasing the extinguishing agent from the one side 12a.

Furthermore, the sheet body 12 is a rectangular sheet body with one side 12a sized to correspond to the fire extinguishing target, including equipment, devices, and locations that could potentially be sources of fire, such as gas ranges and heating appliances installed in residences, etc. For example, it is a sheet body with one square side 12a. Its flexibility allows it to be kept in a non-expanded state, such as rolled up into a cylinder, when not in use, and to be unfolded and used by rolling it from the non-expanded state when extinguishing a fire.

(b1. Fire extinguishing agent distribution routes and fire extinguishing agent supply points)
The fire extinguishing agent distribution path 14 is a flow path for the fire extinguishing agent provided in the sheet body 12. Its structure and configuration are arbitrary, but for example, a fire extinguishing agent supply port 16 is located at the front edge of the sheet body 12, and following the fire extinguishing agent supply port 16 is a buffer area 20 which serves as a pressure buffering means shown by a dotted line inside, and following the buffer area 20 is a fire extinguishing agent distribution path 14 in which a plurality of discharge ports 18 are arranged at various points on one surface 12a.

The fire extinguishing agent distribution path 14 is formed in a ladder-like shape, for example, with five steps, in the front-to-back direction. A buffer area 20 equipped with a fire extinguishing agent supply port 16 is provided in the center of the first step, and discharge ports 18 are arranged, for example, four at a time, from the second to the fifth step from the front.

Furthermore, the fire extinguishing agent distribution path 14 is designed to supply fire extinguishing agent from both the left and right sides of the row of discharge ports 18 located in the left-right direction, from the second to the fifth row from the front. This makes it possible to achieve a nearly uniform discharge pressure for the fire extinguishing agent supplied to multiple discharge ports 18 within the same row, thereby standardizing the discharge pattern (angle distribution) and discharge volume within that row.

Furthermore, the configuration of the fire extinguishing agent distribution path 14 that supplies fire extinguishing agent to the multiple discharge ports 18 is not limited to the ladder shape shown in the figure, but includes appropriate configurations such as tree shape and tournament shape. Also, in order to make the discharge pressure of the multiple discharge ports 18 approximately uniform, the width (cross-sectional area) of the fire extinguishing agent distribution path 14 may be made wider on the side of the fire extinguishing agent supply port 16 and narrower as it moves away from the fire extinguishing agent supply port 16. In addition, the number, position, and arrangement configuration of the discharge ports 18 corresponding to the fire extinguishing agent distribution path 14 are arbitrary.

(b2. Outlet)
The discharge port 18 is the outlet for the fire extinguishing agent supplied from the fire extinguishing agent supply port 16 to the fire extinguishing agent distribution path 14. Its structure and configuration are arbitrary, but for example, as shown in Figure 1(B), it opens on one side 12a of the sheet body 12, and the fire extinguishing agent supplied from the fire extinguishing agent supply port 16 to the fire extinguishing agent distribution path 14 is discharged from various points on one side 12a of the sheet body 12 to extinguish the fire.

The sheet body 12 is placed over the fire source with one side 12a facing downwards (towards the fire source), and the upper surface opposite to side 12a becomes the other surface 12b that is exposed to the outside.

(b3. Buffer area)
When the prescribed operation is performed on the fire extinguisher 24 and it is opened, the extinguishing agent will be supplied from the fire extinguisher 24 to the sheet body 12. However, since the accumulated pressure of the fire extinguisher 24 is high, for example, 0.7 MPa to 0.98 MPa, the high-pressure extinguishing agent from the fire extinguisher 24 when it is opened will be supplied to the extinguishing agent distribution path 14 and the discharge port 18 of the sheet body 12, which may damage the extinguishing agent distribution path 14 and the discharge port 18.

Therefore, a buffer area 20 is provided as a pressure buffering means at the inlet side of the fire extinguishing agent distribution path 14. In the initial stages after the start of fire extinguishing agent supply, the fire extinguishing agent supplied from the fire extinguisher 24 is temporarily held in the buffer area 20, adjusting the increase (or rate of increase) of the fire extinguishing agent pressure to below a predetermined level, thereby preventing damage to the fire extinguishing agent distribution path 14 and the discharge port 18.

[c. Fire extinguishing agent piping]
The fire extinguishing agent piping is a pipe that supplies the fire extinguishing agent to the fire extinguishing agent distribution path 14 of the sheet body 12. Its structure, configuration, and type are arbitrary, but for example, it is a flexible fire extinguishing agent supply hose 26 made of rubber or synthetic resin.

[d. Fire extinguishing agent supply equipment]
(d1. Fire extinguisher)
The fire extinguishing agent supply device supplies fire extinguishing agent to a fire extinguishing agent supply hose 26, which is installed as a fire extinguishing agent piping, when the user performs a predetermined operation. Its structure, function, and type are arbitrary, but for example, a fire extinguisher 24 is used and connected to the other end of the fire extinguishing agent supply hose 26. The fire extinguisher 24 has a predetermined fire extinguishing agent, such as a powder fire extinguishing agent or an enhanced liquid fire extinguishing agent, filled in a pressurized state in its main container. When the user removes the safety pin 34 and pushes down the lever 35, it opens and releases the fire extinguishing agent from the fire extinguisher hose 25.

One end of the fire extinguishing agent supply hose 26 is connected to the fire extinguishing agent supply port 16 of the sheet body 12, and the other end of the fire extinguishing agent supply hose 26 is connected to the fire extinguisher hose 25 of the fire extinguisher 24 via the fire extinguisher connection part 28, thereby connecting the sheet body 12 and the fire extinguisher 24.

The fire extinguisher connection section 28 consists of a fire extinguisher nozzle 30 and a fire extinguisher connection port 32. A known connecting joint, similar to those used to connect a hose to a water tap with a single touch, is used. Here, the fire extinguisher nozzle 30 is obtained by removing the nozzle pre-attached to the end of the fire extinguisher hose 25 of the fire extinguisher 24 and attaching a separately prepared fire extinguisher nozzle 30, but this is not limited to this configuration.

(d2. Fire extinguisher connection part)
Figure 2 shows a fire extinguisher connecting section 28, which consists of a fire extinguisher nozzle 30 and a fire extinguisher connection port 32. The fire extinguisher hose 25 is equipped with a dedicated fire extinguisher nozzle 30 at its tip, and the other end of the fire extinguishing agent supply hose 26 is equipped with a fire extinguisher connection port 32, allowing the fire extinguishing agent supply hose 26 and the fire extinguisher hose 25 to be attached and detached.

The fire extinguisher nozzle 30 is connected and secured to the fire extinguisher connection port 32 by inserting the nipple 52, which is fitted with an O-ring, into the opening of the fire extinguisher connection port 32. The connected fire extinguisher nozzle 30 can be removed by sliding the slider 54 on the fire extinguisher connection port 32 in the direction of the arrow shown in the diagram.

Furthermore, the fire extinguishing device 10 may be equipped with a pressure buffer, such as an orifice, in place of, or in addition to, the buffer area 20 of the sheet body 12, at the fire extinguisher connection section 28, the fire extinguishing agent supply hose 26, or the fire extinguishing agent supply port 16, etc., to adjust the rise (or rate of rise) of the fire extinguishing agent pressure from the fire extinguisher 24 to a predetermined level or lower (to the extent that the fire extinguishing agent flow path 14 and discharge port 18 are not damaged).

[e. Method for manufacturing sheet body 1]
The sheet body 12 of this embodiment shown in Figure 1 is manufactured from, for example, the first cover sheet 36, the second cover sheet 38, and the sheet piping 40 shown in Figure 3. The lower surface of the first cover sheet 36 becomes one surface 12a of the sheet body 12, and the upper surface of the second cover sheet 38 becomes the other surface 12b of the sheet body 12. Note that Figure 3 shows both cover sheets arranged horizontally.

The first cover sheet 36 and the second cover sheet 38 are, for example, fabric-like materials having fire-resistant, fireproof, heat-resistant, or flame-retardant properties, and can withstand high temperatures of, for example, 1200°C. Materials such as fire-resistant sheets, fire-resistant curtains, or fire-resistant screens can be used, but are not limited to these.

Furthermore, the first cover sheet 36 and the second cover sheet 38 each possess heat-shielding, flame-retardant, or smoke-blocking properties, respectively. The second cover sheet 38, whose upper surface is the other surface 12b, may be a fabric-like material that does not possess fire-resistant, fire-resistant, heat-resistant, flame-retardant, heat-shielding, flame-retardant, or smoke-blocking properties.

The sheet piping 40 is formed from a fabric-like material, such as polyester used for umbrella covers, and connected in a ladder-like structure (with connections that allow for airflow). As shown in Figure 4(A), it is easily deformable and, under normal circumstances, is flattened. When the fire extinguishing agent 41 is supplied, it expands as shown in Figure 4(B), forming the fire extinguishing agent flow path 14. The buffer area 20, located after the fire extinguishing agent supply port 16, is also flattened under normal circumstances. When the fire extinguishing agent is supplied, it expands to form the buffer area 20.

Furthermore, as shown in Figure 3, multiple discharge ports 18 are arranged in the second to fifth stages of sheet piping 40 following the first stage where the buffer area 20 is provided. Through-holes 45 are opened in the first cover sheet 36 corresponding to the arranged discharge ports 18.

The discharge port 18 is composed of a base 42 and a clamping ring 44, as shown in Figure 5, for example. A screw shaft 46 is erected on the base 42, and a discharge hole 50 is provided through the screw shaft 46. The clamping ring 44 has a screw hole 48, and the base 42 and the clamping ring 44 are fixed together by screwing the screw shaft 46 of the base 42 into the screw hole 48. Figure 5(A) shows the installed state of the discharge port, Figure 5(B) shows an assembled and disassembled view of the discharge port, and Figure 5(C) shows a cross-sectional assembled and disassembled view of the discharge port.

As for the manufacturing method, first, a first cover sheet 36 and a second cover sheet 38 of a predetermined size, and a five-tiered ladder-shaped sheet piping 40 are prepared.

Next, as shown in Figure 5(C), the base 42 is placed inside the sheet pipe 40, and the base 42 is bonded to the sheet pipe 40 by the adhesive part 43 with the threaded shaft 46 of the base 42 exposed to the outside through an opening in the sheet pipe 40. Then, the threaded shaft 46 that was exposed through the opening in the sheet pipe 40 is further exposed through the through-hole 45 of the first cover sheet 36, and the threaded shaft 46 is screwed into the threaded hole 48 of the clamping ring 44. This creates a discharge port 18, with the sheet pipe 40 and the first cover sheet 36 sandwiched between the base 42 and the clamping ring 44.

Next, as shown in Figure 3, the sheet piping 40 is placed between the first cover sheet 36 and the second cover sheet 38 and overlapped. The edges of the overlapped first cover sheet 36 and second cover sheet 38 are then glued or sewn together with waterproof thread using a sewing machine to produce the sheet body 12 shown in Figure 1.

[f. Method for manufacturing sheet bodies 2]
As an alternative method for manufacturing the sheet body 12 of this embodiment shown in Figure 1, we will describe a method using the first cover sheet 36, second cover sheet 38, second waterproof sheet 58, and second cover sheet 38 shown in Figure 6. Note that in Figure 6, each sheet is shown in a horizontally arranged state.

The first cover sheet 36 and the second cover sheet 38 are the same as those used in the manufacturing method shown in Figure 3. The first waterproof sheet 56 and the second waterproof sheet 58 are made of a fabric-like material, such as polyester used for umbrella coverings, similar to the sheet piping 40 used in the manufacturing method shown in Figure 3. The second cover sheet 38, whose upper surface becomes the other surface 12b, may be made of a fabric-like material that does not possess fire-resistant, fireproof, heat-resistant, or flame-retardant properties.

Furthermore, a fire extinguishing agent supply port 16 is positioned in the first waterproof sheet 56 corresponding to the fire extinguishing agent distribution path 14 formed during the manufacturing process of the sheet body 12. Through-holes 55 are formed in the first waterproof sheet 56 corresponding to the discharge port 18 positioned in the same fire extinguishing agent distribution path 14, and through-holes 45 are formed in the first cover sheet 36.

As shown in Figure 7, the discharge port 18 consists of a base 42 with a threaded shaft 46 that penetrates the discharge hole 50, and a clamping ring 44 with a threaded hole 48, and is the same configuration as shown in Figure 5. Figure 7(A) shows the installed state of the discharge port, Figure 7(B) shows the assembled and disassembled view of the discharge port, and Figure 7(C) shows the assembled and disassembled view of the discharge port in cross-section.

As for the manufacturing method, first, prepare the first cover sheet 36, the first waterproof sheet 56, the second waterproof sheet 58, and the second cover sheet 38, all of predetermined size.

Next, the first cover sheet 36 and the first waterproof sheet 56 are overlapped, aligning the positions of the through-holes 45 and 55. The screw shaft 46 of the base 42 is then passed through the through-holes 45 of the first cover sheet 36 and the through-holes 55 of the first waterproof sheet 56 from the top side of the first waterproof sheet 56, and brought out to the outside. The base 42 is then bonded and fixed to the first waterproof sheet 56 using the adhesive portion 43. Subsequently, the screw shaft 46, which was removed from the through-holes 45 and 55, is screwed into the screw hole 48 of the clamping ring 44. This creates a discharge port 18, with the first cover sheet 36 and the first waterproof sheet 56 sandwiched between the base 42 and the clamping ring 44.

Next, in the arrangement shown in Figure 6, the first cover sheet 36, the first waterproof sheet 56, the second waterproof sheet 58, and the second cover sheet 38 are overlapped. In this state, as shown in Figure 8, sewing is performed using, for example, waterproof thread and a sewing machine, to form the buffer area 20 and the fire extinguishing agent flow path 14 with the sewn portion 60. Furthermore, by integrating all the sheets with the sewn portion 61 along the periphery, the sheet body 12 shown in Figure 1 is manufactured.

Figure 9(A) shows the fire extinguishing agent distribution path 14 formed by the suture portion 60 in its normal state. It is flattened and compressed, but when the fire extinguishing agent 41 is supplied, as shown in Figure 9(B), it expands to increase its cross-sectional area, allowing the fire extinguishing agent 41 to flow. Similarly, the buffer area 20 formed by the suture portion 60 following the fire extinguishing agent supply port 16 is also flattened and compressed in its normal state, but expands to form the buffer area 20 when the fire extinguishing agent is supplied.

[g. Installation and use of fire extinguishing equipment]
Next, we will explain in more detail the installation and use of fire extinguishing equipment.

(g1. Embodiment in which the sheet body is wound into a cylindrical shape)
Figure 10 is an explanatory diagram of an embodiment of a fire extinguishing device in which the sheet body is rolled into a cylindrical shape when not deployed. Figure 10(A) shows the sheet body in the undeployed state, Figure 10(B) shows the sheet body in the process of being deployed, and Figure 10(C) shows the sheet body after being deployed.

As shown in Figure 10(A), the sheet body 12 of this embodiment is normally arranged in an unfolded state, wound in a cylindrical shape around the shaft member 70. The shaft member 70 can have any structure and material as long as it can wind the sheet body 12 around it, but for example, it is a hollow cylindrical body with a length exceeding the width (left-right direction) of the sheet body 12, and can be made of a suitable material such as paper, resin, or light metal.

Furthermore, while the diameter of the shaft member 70 is arbitrary, it is set to approximately 10 cm to suppress deformation caused by the winding of the sheet body 12 and to allow users to easily roll and unfold the sheet body 12 in its unfolded state. If the outer diameter of the shaft member 70 is 10 cm, the length of one turn of the sheet body 12 will be approximately 30 cm. If the length of the sheet body 12 is, for example, 1 m, the number of turns of the sheet body 12 around the shaft member 70 will be approximately 3. If the thickness of the sheet body 12 is, for example, 1 cm, the outer diameter of the shaft member 70 with the sheet body 12 wound around it will be approximately 16 cm, a size that allows anyone to easily handle the unfolded sheet body 12. Note that the shaft member 70 is not limited to a hollow shaft member; it may be solid, and it may be a polygonal prism rather than a cylinder, with an appropriate structure being selected.

The sheet body 12 is wound using the shaft member 70 so that one side 12a of the sheet body 12, where the discharge port 18 shown in Figure 1 is located, faces outwards. That is, as shown in Figure 10(C), starting from an unfolded state with one side 12a of the sheet body 12 facing downwards (the back surface not visible in the figure), the sheet body 12 is wound by rotating the shaft member 70 from the rear end (starting point) of the sheet body 12 towards the front end (ending point) where the fire extinguishing agent supply port 16, to which the fire extinguishing agent supply hose 26 is connected, as shown in Figures 10(B) and 10(A), thereby returning the sheet body 12 to its unfolded state.

The sheet body 12, wrapped around the shaft member 70 in this manner, is then stored and arranged in a storage compartment, for example, as shown in Figure 11. Here, Figure 11(A) shows the external arrangement of the fire extinguishing device, including components other than the sheet body, while Figure 11(B) shows a cross-sectional view of the sheet body's arrangement.

As shown in Figure 11, a base 72 is provided in the storage section, and a cylindrical holder 74 is positioned on the base 72. A support pole 84 stands upright in the center of the holder 74. By fitting the hollow portion of the shaft member 70 onto the support pole 84, the sheet body 12 wound around the shaft member 70 is held upright in the holder 74. A cylindrical cap 76 with a closed top is detachably attached to the upper part of the upright sheet body 12, holding the sheet body 12 wound around the shaft member 70 in a non-expanded state. Alternatively, the inner diameter of the holder 74 may be set to a diameter that can hold the sheet body 12 in a non-expanded state, and the sheet body 12 may be held in a non-expanded state by the holder 74 alone without attaching the cap 76.

Furthermore, a fire extinguisher 24 is positioned in the fire extinguisher holder 78 of the base 72, and the fire extinguisher hose 25 is connected to the fire extinguishing agent supply hose 26, which is connected to the fire extinguishing agent supply port 16 of the sheet body 12, via the fire extinguisher connecting part 28. The fire extinguishing agent supply hose 26 is positioned wound around a hose holder 82 formed on the pole 80 of the base 72.

The normal placement and use of fire extinguishing equipment in the event of a fire will be explained in more detail using the example of a sofa located in a smoking area, with reference to Figure 12. As shown in Figure 12(A), for example, under normal circumstances, the unfolded seat body 12 is positioned upright on the holder 74 of the base 72 installed on the front of the sofa 64, as shown in Figure 11.

As shown in Figure 12(B), if a fire occurs on the sofa 64 due to embers from a cigarette or the resulting fire source 66, the user 68 removes the cap 76 from the sheet 12 standing upright in the holder 74 on the base 72 and takes the sheet 12 out of the holder 74. Next, the user 98, holding the front end (rolled-up end) of the unfolded sheet 12, throws the sheet 12 towards the fire source 66 on the sofa 64, as shown in Figure 12(C), causing the sheet 12 to roll. In this case, the sheet 12 can be thrown in an underhand manner, for example, by holding both ends of the front end of the sheet 12. However, any throwing method that allows the sheet 12 to roll and unfold is acceptable.

As the sheet body 12 is thrown toward the fire source 66, it rolls and unfolds together with the shaft member 70, and as shown in Figure 12(D), it unfolds with one side 12a facing downwards, covering the fire source of the sofa 64, including the fire source 66. The shaft member 70 then detaches from the sheet body 12 after it has unfolded and rolls away.

After unfolding the sheet 12 and covering the source of the fire, the user 68 removes the safety pin 34 from the fire extinguisher 24 located on the base 72 and pushes down the lever 35 to open it. This supplies the extinguishing agent from the fire extinguisher 24 through the fire extinguisher hose 25 and the extinguishing agent supply hose 26 to the extinguishing agent supply port 16 of the sheet 12. The extinguishing agent is then discharged from the discharge ports 18 located at various points on one side 12a of the underside of the sheet 12, ensuring that the extinguishing agent evenly covers the fire source covered by the sheet 12, enabling effective extinguishing in a short time.

When the sheet body 12, wound around the shaft member 70, is thrown and rolled in this manner, the sheet body 12 rotates quickly due to the inertial force of the shaft member 70. Furthermore, since the user 98 does not need to use any special grip or throwing technique to unfold the sheet body 12, the sheet body 12 can be easily and reliably placed over the fire source of the sofa 64.

Furthermore, instead of simply throwing the sheet 12, the sheet 12 may be positioned in its unfolded state in front of the sofa 64, and then lifted high by holding both ends of its front edge. Lifting the front edge of the sheet 12 in this way allows it to roll towards the fire source, making it easier and more reliable to cover the fire source. Alternatively, a mechanism may be provided on the base 72 to hold the front edge of the unfolded sheet 12 in a position that allows it to be unfolded towards the fire source, assisting the user in unfolding the sheet 12. This fixes the position of the front edge of the unfolded sheet 12, defining the area to be covered, preventing the unfolded sheet 12 from shifting relative to the fire source, and ensuring more reliable coverage.

(g2. Embodiment in which the shaft member is attached to the sheet body by a suspension string)
An embodiment of a fire extinguishing device in which a sheet body and a shaft member are connected to each other by a suspension cord will be described in more detail. Here, the "suspension cord" corresponds to the "first cord-like member".

In this embodiment, as shown in Figure 13(A), the shaft member 70 is attached to both ends of the rear edge of the sheet body 12 by suspension cords 88 of a predetermined length. While the length of the suspension cords 88 is arbitrary, for example, it is approximately 20 to 30 cm long, and the suspension cords 88 are made of bundled fibers using a fire-resistant, heat-resistant, or flame-retardant material.

Figure 14 shows the shaft member from Figure 13, with Figure 14(A) showing a cross-section in the axial direction, Figure 14(B) showing a cross-section along line a-a of Figure 14(A), and Figure 14(C) showing a cross-section along line b-b of Figure 14(A).

As shown in Figure 14, the shaft member 70 has a cylindrical hole 702 formed in the axial direction within the shaft member body 700, and annular weights 92 are positioned at both ends and the center of the cylindrical hole 702. Furthermore, the shaft member 70 is secured to the sheet 12 by the suspension cord 88 by passing a suspension cord 88 through a through hole 96 formed in the shaft member body 700 from the outside to the inside, and then tying a fastener 94, which is too large to pass through the through hole 96, to the end of the suspension cord 88 to prevent it from coming loose.

In this manner, the shaft member 70 is secured to both ends of the rear edge (starting point) of the sheet body 12 by the suspension cord 88. The sheet body 12 is then wound around the shaft member 70 in a cylindrical shape, and under normal circumstances, it is positioned upright on the holder 74 of the base 72.

Regarding its use in the event of a fire, it is almost the same as the example shown in Figure 12. However, even after the sheet body 12 is deployed, the shaft member 70 does not detach from the sheet body 12. Instead, it rolls while pulling the sheet body 12, assisting in its deployment, and then functions as a weight to stably maintain the deployed state of the sheet body 12.

For example, as shown in Figure 13(B), by rolling the un-deployed sheet body 12 toward the object to be extinguished 90, the sheet body 12 unfolds and covers the object to be extinguished 90. At this time, the shaft member 700 assists in the unfolding of the sheet body 12 by rolling it toward the rear of the sheet body 12, and after the sheet body 12 has been unfolded, it is suspended by the suspension cord 88 from the rear end (starting point) of the sheet body 1200 and functions as a weight. Therefore, even if the extinguishing agent is released toward the fire source covered by the sheet body 12, the weight of the shaft member 70 suspended by the suspension cord 88 prevents the unfolded sheet body 1200 from floating up, suppressing leakage and scattering of the extinguishing agent from the space covered by the sheet body 1200, thereby enhancing the fire extinguishing effect and reducing contamination of the surrounding area. Furthermore, even if the shaft member 70 is in contact with the floor or the like, the sheet body 12 functions as a weight; therefore, it is not necessarily required that the shaft member 70 be suspended from the sheet body 12 after it has been unfolded.

(g3. Embodiment in which the handle is attached to the seat body by an operating string)
An embodiment of a fire extinguishing device in which a handle is attached to a sheet body by an operating cord will be described in more detail with reference to Figure 15. Here, "handle" corresponds to "operating part" and "operating cord" corresponds to "second cord-like member". Also, Figure 15(A) shows the sheet body in the unfolded state, Figure 15(B) shows the sheet body in the process of unfolding, and Figure 15(C) shows the sheet body after unfolding.

In this embodiment, as shown in Figure 15, the handle 102 is handheld and attached to both ends of the front edge (winding end) of the sheet body 12 by an operating cord 100 of a predetermined length. While the length of the operating cord 100 is arbitrary, it is determined such that the distance from the handle 102 to the sheet body 12 is, for example, 1 to 2 meters, allowing the user holding the handle to maintain a safe distance from the fire source. The operating cord 100 may also be a cord made of bundled fibers using a fire-resistant, heat-resistant, or flame-retardant material, similar to the suspension cord 88.

The structure and material of the handle 102 are arbitrary, but it is a plate member formed from an appropriate material such as resin or light metal. It has an operating opening 104 for the user to insert their hand and hold the handle 102, and a through-hole 106 for the fire extinguishing agent supply hose 26 to pass through, restricting its movement and preventing it from interfering with the user handling the fire extinguishing equipment.

As shown in Figure 16, the sheet body 12, to which the handle 102 is attached by the operating cord 100, is positioned upright on the holder 74 of the base 72. The sheet body 12 is wound cylindrically around the shaft member 70, and the operating cord 100 and the fire extinguishing agent supply hose 26 (passed through the handle 102's through-hole 106) are further wound around the outside of the sheet body 12. Figure 16(A) shows the top view of the sheet body in its unfolded state, and Figure 16(B) shows the left side view.

The usage in the event of a fire is almost the same as the example shown in Figure 12, but the user will, for example, hold the handle 102 attached to the sheet body 12 (which has been removed from the holder 74 on the base 72) with one hand, and the sheet body 12 with the other hand to throw it. Furthermore, the user can throw the sheet body 12 from an additional distance away from the source of the fire, ensuring user safety.

The deployment of the sheet body 12 using the operating unit is performed while the user holds the position of the handle 102. First, as shown in Figure 15(A), the operating cord 100 and the fire extinguishing agent supply hose 26, which are wound around the outside of the sheet body 12, are unwound. Then, as shown in Figure 15(B), the sheet body 12 is deployed, and finally, as shown in Figure 15(C), the sheet body 12 is deployed to cover the source of the fire, and the shaft member 70 detaches from the sheet body 12. Although the handle 102 is attached, the sheet body 12 can be deployed by rolling it, just as if there were no handle 102. Therefore, the user 98 does not need to use any special grip or throwing technique to deploy the sheet body 12, making it easy, more reliable, and safer to cover the source of the fire with the sheet body 12.

Furthermore, when throwing the sheet 12 towards the fire source, the operating cord 100 can be manipulated by, for example, pulling the handle 102 towards the user, thereby applying rotational force to the unfolding sheet 12 and causing it to roll more quickly, thus enabling faster deployment of the sheet 12. Also, if the unfolded sheet 12 goes too far (towards the rear) from the fire source, the handle 102 can be pulled towards the user (towards the front) to adjust the unfolded sheet 12 to an appropriate position relative to the fire source, or the sheet 12 can be pulled back towards the user, retrieved, re-rolled, and then thrown towards the fire source again.

Furthermore, since the fire extinguishing agent supply hose 26, which is pulled out from the sheet body 12, is passed through the through-hole 106 of the handle 102, the movement of the fire extinguishing agent supply hose 26 is restricted when the sheet body 12 is deployed, so the fire extinguishing agent supply hose 26 does not get in the way of the user handling the fire extinguishing equipment.

(g4. Embodiment in which the shaft member and handle are attached to the sheet body)
Furthermore, a sheet body may be formed by combining "g2. Embodiment in which a shaft member is attached to the sheet body by a suspension string" and "g3. Embodiment in which a handle is attached to the sheet body by an operating string."

In this embodiment, as shown in Figure 17(A), handles 102 are attached to both ends of the front edge of the sheet body 12 by operating cords 100, and shaft members 70 are attached to both ends of the rear edge of the sheet body 12 by suspension cords 88 of a predetermined length. The shaft members 70 and suspension cords 88 are the same as those shown in Figures 13 and 14, and the handles 102 and operating cords 100 are the same as those shown in Figure 15.

Regarding use in the event of a fire, the descriptions in "g2. Embodiment in which the shaft member is attached to the sheet body by a suspension cord" and "g3. Embodiment in which the handle is attached to the sheet body by an operating cord" should be combined.

Furthermore, this embodiment has the advantages of both cases: when the shaft member 70 is secured by the suspension cord 88, and when the handle 102 is secured by the operating cord 100.

(g5. Alternative form of shaft member)
Another embodiment of the shaft member 70 around which the sheet body 12 is wound will be described in more detail. Figure 18(A) shows another embodiment of the shaft member 70, in which flanges 704 are provided at both ends of a hollow shaft member body 700 having a cylindrical hole 702, and the axial length of the shaft member body 700 is the length corresponding to the width of the sheet body 12. The diameter of the flanges 704 is larger than the outer diameter of the sheet body 12 when the sheet body 12 is wound around the shaft member body 700 in a cylindrical shape.

By providing flanges 704 at both ends of the shaft member body 700, the position where the sheet body 12 is wrapped around the shaft member body 700 is restricted by the flanges 704 at both ends of the shaft member body 700, making it easier to wrap the sheet body 12 around the shaft member 700. Furthermore, if the un-deployed sheet body 12 is thrown towards the source of a fire, after the un-deployed sheet body 12 falls onto the surface of the object being extinguished or the ground, the flanges 704 act as wheels, assisting in the rolling and unfolding of the sheet body 12. This allows the sheet body 12 to roll and unfold more quickly. This wheel-like action of the flanges 704 is particularly effective when the object being extinguished is flat.

Figure 18(B) shows another embodiment of the shaft member 70, different from that of Figure 18(A). In this embodiment, the shaft member 70 has flanges 704 on both sides of the shaft member body 700 at intervals corresponding to the width of the sheet body 12, similar to those in Figure 18(A). Additionally, an exposed shaft portion 706, having the same diameter as the shaft member body 700, is coaxially provided on the outside of the flanges 704.

By providing the exposed shaft portion 706 on the outside of the flange 704 in this way, when wrapping the sheet body 12 around the shaft member body 700, the exposed shaft portion 706 can be rotated to facilitate the wrapping process of the sheet body 12. Furthermore, the exposed shaft portion 706 can be used as a handle during transportation and other operations. Note that a weight 92 may be provided in the cylindrical hole 702 of the shaft member 70 in Figures 18(A) and 18(B), as shown in the shaft member in Figure 14.

[h. Embodiment in which a position adjustment string is provided on the sheet body]
An embodiment of a fire extinguishing device equipped with a position adjustment cord for adjusting the position after the sheet body has been unfolded will be described in more detail with reference to Figure 19. Here, the "position adjustment cord" corresponds to the "third cord-like member".

As shown in Figure 19, the fire extinguishing device of this embodiment, similar to that shown in Figure 17, has handles 102 attached to both ends of the front edge of the sheet body 12 by operating cords 100, and shaft members 70 attached to both ends of the rear edge of the sheet body 12 by suspension cords 88.

In addition, in this embodiment, one end of a position adjustment cord 110 is provided at each of the four ends of the sheet body 12, and a knob 112 is attached to the other end of the position adjustment cord 110. Furthermore, the position adjustment cord 110 is made of a fire-resistant, heat-resistant, or flame-retardant material. The shape of the knob 112 is arbitrary, but for example, it is spherical and, after the sheet body 12 is unfolded, it is connected to the sheet body 12 via the position adjustment cord 110, thus functioning as a weight positioned around the sheet body 12.

The position of the sheet body 12 on which the position adjustment cord 110 is provided, and the length of the position adjustment cord 110, are arbitrary. However, for example, the length should be such that the user can operate the position adjustment cord 110 from a safe position away from the fire source when the sheet body 12 is unfolded and placed over the fire source, and the length should exceed the vertical width (front-to-back direction) of the sheet body 12.

When the sheet body 12 is wound around the shaft member 70 to form a cylindrical shape, the position adjustment string 110 is positioned on the other side 12b of the sheet body 12 so as to be approximately in the axial direction of the shaft member 70, as shown by the dotted line of the position adjustment string 1100. In this state, the sheet body 12 is wound around the shaft member 70 in a cylindrical shape.

An example of using a fire extinguishing device with a position adjustment cord 110 attached to a sheet body 12 will be explained in more detail with reference to Figure 20. Figure 20(A) shows a state where the sheet body 12 is deployed toward the object 90 to be extinguished (the source of the fire), but the sheet body 12 is deployed in a position offset from the object 90 and does not properly cover the object 90. Furthermore, the position adjustment cord 110, attached to the end of the sheet body 12, acts as a fulcrum at one end attached to the sheet body 12, while the knob 112 attached to the other end functions as a weight. Therefore, when the user throws the sheet body 12 toward the source of the fire, the force acting on the sheet body 12 causes the cord and knob 112 to fly outwards from the sheet body 12 during deployment. As a result, as shown in Figure 20(A), after the sheet body 12 is deployed, the position adjustment cord 110 and knob 112 are positioned around the deployed sheet body 12.

Furthermore, the position adjustment cord 110, to which the knob 112 (which functions as a weight) is attached, assists in unfolding the sheet body 12 when the knob 112 is used, and suppresses the sheet body 12 from lifting up after unfolding. This allows the sheet body 12 to unfold more smoothly, continuously and stably cover the fire source, and further enhances the fire extinguishing effect by suppressing leakage and scattering of the fire extinguishing agent from the fire source covered by the sheet body 12, thereby reducing contamination of the surrounding area.

Furthermore, if the sheet body 12 is deployed at a position offset from the object to be extinguished 90, as shown in Figure 20(B), the user can move the sheet body 12 to an appropriate position that covers the object to be extinguished 90 by pulling, for example, the two position adjustment cords 110 located on the right side of the sheet body 12, in the direction indicated by the arrows. Note that the position adjustment cords 110 attached to the sheet body 12 only need to be able to adjust the position of the deployed sheet body 12; the position and number of cords attached to the sheet body 12 are arbitrary.

[i. Embodiment in which the shaft member and handle are fastened to the sheet body by a net]
An embodiment of a fire extinguishing device in which a shaft member and a handle are fastened to a sheet body by a net will be described in more detail with reference to Figure 21. Here, the "net" to which the shaft member is fastened corresponds to the "first net member," and the "net" to which the handle is fastened corresponds to the "second net member."

As shown in Figure 21, the fire extinguishing device of this embodiment, like the embodiment in Figure 17, comprises a sheet body 12, a shaft member 70, and a handle 102. However, the rear end of the sheet body 12 and the shaft member 70 are connected to each other by a suspension net 120, and the front end of the sheet body 12 and the handle 102 are connected to each other by an operating net 130. Here, the shape of the suspension net 120 and the operating net 130 is arbitrary as long as they can be wrapped around the shaft member 70 in the same way as the sheet body 12. However, the suspension net 120 is rectangular, and the operating net 130 is triangular, with the front end of the sheet body 12 as the base and the handle 102 as the apex.

Furthermore, the suspension net 120 and the operation net 130 are made of fire-resistant, heat-resistant, or flame-retardant materials, and while the mesh shape is arbitrary, it is typically rectangular. The size of the mesh unit openings is also arbitrary, but for example, to enhance flexibility, they are typically several centimeters in both length and width.

By fastening the sheet body 12 and the shaft member 70 together with the suspension net 120, the suspension net 120 becomes flush with the sheet body 12. Therefore, compared to the suspension string 88 in Figure 17, wrapping the net around the shaft member 70 becomes easier, and subsequently, wrapping the sheet body 12 around it also becomes easier.

Furthermore, by fastening the sheet body 12 and the handle 102 together with the operating net 130, the net becomes flush with the sheet body 12, similar to the suspension net 120, making it easier to wind the operating net 130 compared to the operating cord 100 in Figure 17.

[j. Embodiment in which weights are provided at the front and rear edges of the sheet body]
Another embodiment of a fire extinguishing device, in which weights are provided at the front and rear edges of a sheet body, will be described in more detail with reference to Figure 22.

Figure 22(A) shows another embodiment of the sheet body manufactured using the procedure shown in Figure 3. In this embodiment, the sheet body 12, when unfolded, is wrapped around the shaft member 70 in the front-to-back direction to form a cylindrical shape. Multiple weights 22 are placed at intervals along the front end 13a and rear end 13b, which do not deform when wrapped around the shaft member 70.

The arrangement structure of the weight 22 is arbitrary, but for example, when overlapping the first cover sheet 36 and the second cover sheet 38 as shown in Figure 3, the weight 22 is placed between the first cover sheet 36 and the second cover sheet 38, and the weight 22 is fixed along the front edge 13a and the rear edge 13b by adhesive or sewing the first cover sheet 36 and the second cover sheet 38 together with waterproof thread, corresponding to the position where the weight 22 was placed. The shape of the weight 22 is also arbitrary, but for example, it may be a lead or other material of a predetermined length. On the other hand, weights are not placed on the right edge 13c and the left edge 13d of the sheet body 12 to avoid hindering wrapping around the shaft member 70, but if a flexible weight 22 is used, weights 22 may be placed on the right edge 13c and the left edge 13d.

The weight 22 assists in the deployment of the cylindrically rolled sheet 12 to cover the fire source, and after deployment, it holds down the front edge 13a and rear edge 13b of the sheet 12 (suppressing unnecessary movement) to prevent the sheet 12 from lifting due to the release of the extinguishing agent. This allows the sheet to be deployed smoothly and continuously and stably cover the fire source. Furthermore, it suppresses leakage and scattering of the extinguishing agent from the fire source covered by the sheet 12, enhancing the fire extinguishing effect and reducing contamination of the surrounding area.

Figure 22(B) shows another embodiment of the sheet body produced by the procedure shown in Figure 6. The sheet body 12 in this embodiment is similar to the sheet body 12 in Figure 22(A), with multiple weights 22 placed at intervals along the front edge 13a and rear edge 13b of the sheet body 12. The weights 22 have the same effect as the weights 22 in the sheet body 12 of Figure 22(A).

[i. Modifications of the present invention]
(Applicable to)
The above embodiment uses equipment, machinery, and locations in a residence that could potentially be sources of fire as examples of targets for fire extinguishing equipment. However, it can also be applied to equipment, machinery, and locations in factories, schools, government offices, warehouses, and other appropriate facilities that could potentially be sources of fire.

(Sheet form)
The above embodiment uses a rectangular sheet as an example, but is not limited to this. For example, the sheet may be circular, elliptical, a polygon other than a rectangle, or a combination of these shapes, depending on the target of fire extinguishing. Also, the above embodiment has weights arranged along the front edge 13a and rear edge 13b of the sheet, but is not limited to this.

(Distribution routes for fire extinguishing agents)
In the above embodiment, the fire extinguishing agent distribution path 14 is formed by sheet piping or by sewing or bonding with a sewing machine using waterproof thread, but the formation of the fire extinguishing agent distribution path is not limited to this. For example, the fire extinguishing agent distribution path may be made using a tube made of resin or the like.

(Fire extinguishing agent supply equipment)
The above embodiment uses a fire extinguisher as an example of a fire extinguishing agent supply device, but is not limited to this and can be any portable fire extinguishing agent supply device. For example, a simple pressurized water pump may be used. A pressurized water pump contains the fire extinguishing agent in a container, compresses the air inside the container by manual operation, and supplies the fire extinguishing agent to a sheet body with compressed air for release.

(others)
Furthermore, the present invention includes appropriate modifications that do not impair its purpose and advantages, and is not limited by the numerical values shown in the above embodiments.

10: Fire extinguishing equipment 12: Sheet body 12a: One side 12b: Other side 14: Fire extinguishing agent distribution route 16: Fire extinguishing agent supply port 18: Discharge port 20: Buffer area 22, 92: Weight 24: Fire extinguisher 25: Fire extinguisher hose 26: Fire extinguishing agent supply hose 28: Fire extinguisher connection part 30: Fire extinguisher nozzle 32: Fire extinguisher connection port 34: Safety pin 35: Lever 36: First cover sheet 38: Second cover sheet 40: Sheet piping 41: Fire extinguishing agent 42: Base 44: Clamping rings 45, 55, 96, 106: Through hole 46: Screw shaft 48 :Screw hole 50:Discharge hole 52:Nipple 54:Slider 56:First waterproof sheet 58:Second waterproof sheet 60, 61:Sewn part 64:Sofa 66:Fire source 70:Shaft member 72:Base 74:Holder 76:Cap 78:Fire extinguisher holder 80:Pole 82:Hose holder 84:Support pole 88:Hanging string 90:Object to be extinguished 94:Fastener 100:Operating string 102:Handle 106:Through hole 104:Operating opening 110:Position adjustment string 112:Knob 120:Hanging net 130:Operating net

Claims (6)

A fire extinguishing device storage device for storing a fire extinguishing device that normally has a non-extended state where it is rolled up into a rod shape, and which has at least a sheet body that rolls out from the non-extended state to cover the source of the fire when extinguishing a fire,
A fire extinguishing device storage device characterized by comprising a sheet holder portion for holding the sheet in the unfolded and upright state.
A fire extinguishing device storage device according to claim 1,
The fire extinguishing device is to be stored, which has a sheet body that is wound in a rod shape with a shaft member having a hollow portion as the central axis, in the state described as the unfolded state,
Furthermore, the fire extinguishing equipment storage device is characterized by having a sheet support portion that rises from the bottom of the holder portion and is fitted into the hollow portion of the shaft member.
A fire extinguishing device storage device according to claim 2,
A fire extinguishing equipment storage device characterized in that the height of the sheet support portion is lower than the height of the sheet in an upright position.
A fire extinguishing device storage device according to any one of claims 1 to 3,
Furthermore, the fire extinguishing equipment storage device is characterized by comprising a cap portion that is detachably attached to the upper part of the sheet body held in the sheet body holder portion.
A fire extinguishing device storage device according to any one of claims 1 to 4,
In addition to the aforementioned sheet body, the fire extinguishing equipment includes a fire extinguishing agent piping for supplying a fire extinguishing agent to the sheet body, and a fire extinguishing agent supply device for supplying the fire extinguishing agent to the sheet body via the fire extinguishing agent piping.
Furthermore,
A fire extinguishing agent supply device holder section on which the aforementioned fire extinguishing agent supply device is placed,
A fire extinguishing agent pipe holder section, in which the aforementioned fire extinguishing agent pipe is arranged in a coiled state,
Equipped with,
A fire extinguishing equipment storage device characterized in that each of the sheet body holder section, the fire extinguishing agent supply equipment holder section, and the fire extinguishing agent piping holder section is independently provided on a base.
A sheet body having one side that can cover the source of the fire,
A fire extinguishing agent distribution path provided in the sheet body,
One or both sides of the sheet body are provided with outlets corresponding to the fire extinguishing agent distribution path, which release the fire extinguishing agent supplied to the fire extinguishing agent distribution path from one or both sides of the sheet body,
One end of the fire extinguishing agent piping is connected to the fire extinguishing agent distribution path, and the fire extinguishing agent piping supplies the fire extinguishing agent to the fire extinguishing agent distribution path.
The other end of the fire extinguishing agent piping is connected to a fire extinguishing agent supply device that supplies the fire extinguishing agent to the fire extinguishing agent piping,
A storage compartment for storing the sheet body, the fire extinguishing agent piping, and the fire extinguishing agent supply device,
Equipped with,
If the discharge port is provided on one side of the sheet body, that side is directed toward the source of the fire; if the discharge port is provided on both sides of the sheet body, that side or the other side is directed toward the source of the fire, and the sheet body is used to cover the source of the fire; and when a predetermined operation is performed with the fire extinguishing agent supply device, the fire extinguishing agent supplied from the fire extinguishing agent supply device to the fire extinguishing agent distribution path via the fire extinguishing agent piping is discharged from the discharge port to extinguish the fire.
The aforementioned sheet body is
Normally, the shaft member is stored in the storage compartment in an unfolded and upright state, wound into a rod shape with the shaft member as the central axis.
A fire extinguishing device characterized by being removed from the storage compartment during fire extinguishing, and then rolled from the non-deployed state toward the source of the fire to unfold and cover the source of the fire.