Firefighting method using fire-resistant cloth

A conical fire-resistant cloth with a heat-resistant core and pendants is used to block air supply and extinguish fires, providing an effective alternative to water and chemical extinguishers, especially for initial fire suppression.

JP2026137010APending Publication Date: 2026-08-26宇野勇一
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Patent Information

Application Number
JP2025035020
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2026-08-26

AI Technical Summary

Technical Problem

Conventional fire extinguishing methods rely heavily on water and chemical agents, which may not be effective or environmentally friendly, and there is a need for an alternative method to prevent large-scale fires and protect valuable resources.

Method used

A conical fire-resistant cloth with a heat-resistant core and fire-resistant pendants is used to cover fires, blocking air supply and extinguishing them by dropping multiple layers from a helicopter.

Benefits of technology

This method effectively extinguishes fires without water or chemicals, preserving resources and reducing environmental impact, particularly effective for initial fire suppression.

✦ Generated by Eureka AI based on patent content.

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Abstract

In the event of various fires, water or chemical fire extinguishing agents have traditionally been used, but this invention aims to extinguish the fire by dropping fire-resistant cloth from above the fire to cut off the air supply, without using these methods. [Solution] A fire-resistant body is formed by connecting the upper edge of the skirt section to the lower periphery of the cone section, and a fire-resistant core is provided at both connection points. Holes are provided at the top of the cone section, and wire ropes are fixed to each hole. Fire-resistant hangers are provided at equal intervals on the lower periphery of the skirt section. Dozens of such fire-resistant bodies are stacked and stored inside, and transported to the fire scene by helicopter, where they are dropped one by one from above the fire to extinguish it.
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Description

Technical Field

[0001] The present invention is mainly used for extinguishing forest fires among various fires (forest, factory, house, etc.). Conventionally, water, chemical fire extinguishers, etc. have been used during fire extinguishing, but the present invention attempts to extinguish fires without using these.

Background Art

[0002] The present invention is a fire extinguishing method using a cloth that is resistant to heat (fire). It seems that it has not been reported in the current mass media, etc. This method extinguishes fires in a new way different from the conventional fire extinguishing methods. It attempts to cover the fire with a fire-resistant cloth from above the fire and block the air to extinguish the fire.

[0003] It is written in books that an invention is the creation of a technical idea. The present invention utilizes a cloth that is extremely resistant to fire and existing technologies to create a new fire extinguishing method that has never existed before.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present invention was conceived when watching large-scale forest fires on TV in foreign countries, etc., and thinking whether there was any way to extinguish fires other than water and chemical fire extinguishers. After repeated thinking, the present invention was conceived. If the present invention is used at the initial stage of a fire, it can be extinguished before a large-scale fire occurs and prevent the loss of global resources.

Means for Solving the Problems

[0005] [[ID=S2]] A conical fire-resistant cloth is created, and the upper part of a skirt-shaped fire-resistant cloth is connected to the lower peripheral edge (it is also possible to integrally mold both cloths). And a heat-resistant fire-resistant core is provided at the peripheral edge of both connection parts, and fire-resistant pendants at equal intervals are provided at the lower peripheral edge of the skirt part. Incidentally, although the present invention is conical, it seems that a triangular pyramid or a square pyramid is also possible.

[0006] The diameter of the lower part of the cone should be about 40 to 50 meters, and the skirt length should be about 5 to 10 meters. Also, the spacing of the fireproof strips at the lower edge of the skirt should be about 1 meter. [Effects of the Invention]

[0007] By using this invention, various types of fires can be extinguished without using water or chemical extinguishing agents as described above. It may also be applicable to aircraft fires. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view showing the overall invention. [Figure 2] This is a partially enlarged perspective view of the upper part of the present invention. [Figure 3] This is a partially enlarged perspective view of the lower part of the present invention. [Modes for carrying out the invention]

[0009] This invention involves stacking dozens of layers of cloth that can withstand high temperatures and intense heat, transporting them to the fire scene by helicopter, and then dropping them one by one from above the fire to extinguish it. [Examples]

[0010] To explain the drawings, Figure 1 is a perspective view showing the entire present invention in a suspended state. It consists of a conical section 1 made of fire-resistant cloth and a skirt section 2 attached to its lower periphery. The size is as described above. The conical section 1 and the skirt section 2 together are referred to as the fire-resistant body 3.

[0011] A hard, heat-resistant fire-resistant core 4 is attached to the lower part of the cone section 1 and the connection point to the upper edge of the skirt section 2. The fire-resistant core 4 is for maintaining the expanded shape when the fire-resistant body 3 is suspended, and a piano wire or similar material with a diameter of about 1 to 2 centimeters is considered suitable. In addition, dozens of fire-resistant bodies 3 of the same shape are made and stacked inside for storage.

[0012] At the top of the cone section 1, heat-resistant wire ropes 5 are provided, and above them, a receiving box 6 with a built-in drop device is provided, with a hook 7 above that.

[0013] Figure 2 is an enlarged view of the top of the cone section 1. Each of the cone sections 1, which are stacked and stored inside, has a hole 8 with a diameter of about 1 meter at its top. The lower part of each wire rope 5 is fixed to one end of each hole 8, and each hole 8 is for the purpose of allowing each wire rope 5 to fall smoothly. Note that in Figure 1, the wire ropes 5 would be too long if drawn in their actual length, so the middle section has been omitted.

[0014] Another purpose of each hole 8 is to allow the fire-resistant material 3 to fall in its original position, with air escaping (passing through) through these holes 8 as it descends. Without the holes 8, the fire-resistant material 3 would be filled with air, and due to the effects of wind, etc., or if dropped from a high altitude, it may fall tilted or sideways. If the holes 8 are too large, the effect of sealing and extinguishing the fire will be diminished. In the above, the holes 8 are set to about 1 meter, but it is necessary to test the optimal size of the holes 8 through practical experiments. Also, if fire is erupting from the holes 8 when dropped, I think the fire can be extinguished by dropping another one about 10 to 15 meters away.

[0015] Figure 3 shows a portion of the lower part of each skirt section 2, with fire-resistant flaps 9 provided at various points. The spacing is as described above, and these fire-resistant flaps 9 are weights that seal the lower part of each dropped fire-resistant body 3 and prevent air from entering.

[0016] The above is an overview of the present invention. This structure involves creating dozens of these fire-resistant bodies 3 and storing them inside, stacking them on top of each other. A suitable number of storage bodies would be around 40 to 50. Furthermore, each fire-resistant body 3 needs to be made smaller in size, spaced several tens of centimeters apart, as it moves inward. This is to ensure that each fire-resistant body 3 can be dropped one by one from the inside without getting stuck. It is necessary to conduct repeated practical experiments, as described above, to verify whether it is actually possible to drop each body one by one using this structure and method.

[0017] The method of using this invention involves using a helicopter when a fire breaks out. A hook 7, provided in this invention, is attached to a hook suspended from the helicopter and carried to the fire site. From above the fire site (the fire-resistant body 3 is at an altitude of approximately 30 meters), each fire-resistant body 3 is dropped one by one. If one body is insufficient to extinguish the fire, two, three, or more bodies are dropped. The dropping method involves sending a signal from the helicopter cockpit to a receiving box 6, which then drops each fire-resistant body 3 one by one from the inside. These steps can be carried out using existing technologies and methods.

[0018] Since it is impossible to know where various types of fires will occur, the fire-resistant body 3 of the present invention will be prepared in various locations throughout Japan or even the world, and a system will be constructed to transport the fire-resistant body 3 to the nearest location where a fire occurs by helicopter and extinguish the fire.

[0019] As mentioned above, initial firefighting immediately after a fire breaks out is effective, and this invention is not useful when a forest fire is occurring on a large scale. However, when a forest fire approaches houses, factories, or other important places or facilities, this invention may be used to extinguish the fire. In such cases, it is essential to use this invention in conjunction with ground-based firefighting methods such as water.

[0020] In the case of factory fires, for example, if a crude oil tank catches fire, it seems that the fire could be extinguished if the tank could be completely covered. In this case, the length of the skirt portion 2 of each fire-resistant body 3 would need to be increased. Also, according to literature, the largest crude oil tanks have a diameter of 80 meters or more, so if the diameter of the fire-resistant body 3 is made to about 100 meters and the length of the skirt portion 2 is made to about 50 meters, it should be able to completely cover the tank. In this case, the fire-resistant core 4 also needs to be made larger (thicker). Depending on the intensity of the fire, dropping 2 or 3 bodies may not be enough to extinguish it, but it seems that dropping about 10 bodies might be enough to extinguish it.

[0021] Are dozens of refractory bodies 3 with a diameter of about 100 meters and a height of the skirt part 2 of about 50 meters actually lifted by a helicopter? Since there seem to be various problems, its realization is unknown. Also, since downward wind is generated in the helicopter, the dropping will be from above the sky where the influence does not reach (the altitude of the refractory body 3 is as described above), and I think the wire rope of the helicopter will become long.

[0022] In the case of a fire in a house or the like, in the fire of one row of houses standing side by side, air cannot be blocked, so it seems that the fire extinguishing method of the present invention cannot extinguish the fire. Also, in the case of a forest fire or a fire in a factory or the like, in a fire area with undulations, air cannot be blocked either, and the present invention is ineffective even in strong winds.

[0023] After various fires are extinguished, each refractory body 3 is recovered by a helicopter, and those that can be used or can be used after repair are reused.

[0024] The present invention was conceived due to the appearance of a refractory cloth that can withstand temperatures exceeding 3000 degrees. I thought that most fires could be extinguished by using this refractory cloth, and one of the methods was specifically shown. However, since the price of the refractory cloth is still very high, its realization may be impossible until it can be mass-produced at a low cost. Also, I think it cannot be realized immediately in terms of funds, labor, management, etc. for arranging the refractory bodies of the present invention all over the world.

[0025] In the drought period, water is a precious resource, but it has to be used if a fire breaks out. Also, since chemical fire extinguishers seem to have some impact on soil pollution and water pollution, I think the fire extinguishing method of the present invention is very meaningful.

[0026] Large-scale forest fires occur somewhere on the earth every year, and the losses caused by these fires are enormous. Even if a part of them can be extinguished by the present invention, it would be an unparalleled joy.

Explanation of Signs

[0027] 1 Conical part 2. Skirt section 3 Fireproof body 4 Refractory wick 5 Wire rope 6 Inbox 7 hooks 8 holes 9 Fireproof

Claims

[Claim 1] The upper edge of the skirt portion 2 is connected to the lower edge of the cone portion 1 to form a fire-resistant body 3. A fire-resistant core 4 is provided at the connection point between the conical section 1 and the skirt section 2. Fire-resistant flaps 9 are provided at equal intervals around the lower edge of the skirt portion 2. Each cone portion 1 has a hole 8 at its apex, and each wire rope 5 is fixed to the apex of each hole 8. Dozens of these fire-resistant bodies 3, formed in this manner, are housed inside. A firefighting method using fire-resistant cloth, characterized in that each fire-resistant body 3, configured as described above, can be dropped one by one using conventional technology.