JP5393583B2 - Fire hose - Google Patents

Description

  The present invention relates to a fire hose in which a lining layer is provided on the inner surface of a cylindrical jacket in which warp yarns and weft yarns are woven into a cylindrical shape.

  As is well known, fire fighting hoses are known that have a lining layer that is lined with a synthetic resin or the like on the inner surface of a cylindrical jacket in which warps and wefts are woven into a cylindrical shape. In addition, in a fire place where there are many corners that tend to damage the hose, such as pillars and furniture, in buildings, wear resistance and resistance to a double structure with a cylindrical jacket over the hose. A fire hose having a double jacket structure that is superior in terms of trauma may be used (Patent Document 1). The fire hose includes an outer cylinder jacket woven with warp and weft, an inner cylinder jacket woven with warp and weft, and a lining layer applied to the inner jacket. It consists of.

  In addition, at the fire site, sparks and the like are scattered and the hose is burnt, and the hose is damaged, and there is a possibility that a hole is formed in the hose due to the expansion of the damage, and sufficient digestion and sliding cannot be performed. For this reason, a so-called leak hose has been marketed in which a minute hole is made in the hose so that the water leaks out from the hole when the water is supplied to protect the hose from fire.

JP 2004-190836 A

  However, the fire hose with a double jacket structure is strong, but it can still cause fires due to wear, injury, heat, etc., which can hinder fire fighting activities. In addition, in the case of a wet hose, water is sprayed on the route of the hose, so that it is mainly used in forest fires and causes a problem of water loss. Therefore, it is rarely used for extinguishing indoors.

  Also, in the case of conventional fire hoses, fire fighting water is filled in the hose during fire extinguishing activities and is used by dragging on the road surface, so the surface of the cylindrical jacket gets dirty and is often used for water washing after removal. If it takes a long time and is stored with insufficient drying after washing, there is a problem that mold, slime, etc. occur on the surface.

  The present invention has been made in consideration of such circumstances, and can prevent damage to the hose surface due to the water film on the hose surface obtained by the superhydrophilic effect of the photocatalyst, reduce frictional resistance on the hose surface, and reduce trauma. Compared to the conventional method, when the water is washed after removal, the photocatalyst's super-hydrophilic effect makes it easier to remove dirt, and when sun-dried, the dirt on the outer surface of the jacket is decomposed by the photocatalyst's effect to prevent mold and slime from sticking. The purpose is to provide.

A fire hose according to the present invention is a fire hose comprising a tubular jacket woven with warp and weft, and a lining layer provided inside the tubular jacket, on at least the outer surface of the tubular jacket. The exposed warp yarn is a yarn mixed with a photocatalyst and extends from the inside of the hose to the outer surface of the cylindrical jacket over the cylindrical jacket and the lining layer, and at least one location per 1 m along the longitudinal direction of the hose The pin hole formed so that the water in the hose oozes out to the outer surface of the cylindrical jacket is formed.

  According to the present invention, the hose surface water film obtained by the superhydrophilic effect of the photocatalyst can prevent the hose from being damaged by heat, reduce the frictional resistance of the hose surface and reduce the trauma. The super-hydrophilic effect of the photocatalyst when washed with water makes it easy to remove the dirt, and when sun-dried, the dirt on the outer surface of the jacket is decomposed by the effect of the photocatalyst, and a fire hose that is resistant to mold and slime is obtained.

1 is a side view of a single structure fire hose according to an embodiment of the present invention. The longitudinal cross-sectional view of the fire hose of FIG. The cross-sectional view of the fire hose of FIG.

  Hereinafter, the fire hose of the present invention will be described in detail.

  In the present invention, the cylindrical jacket has a structure woven with warp and weft (single structure), or an outer cylinder jacket woven with warp and weft, and a single structure hose inside the outer jacket. What was constructed by drawing in (double jacket structure) is known. Here, in general, a fire hose having a single structure that is flexible, light, and excellent in workability is used at a fire site. However, in a fire place where there are many corners such as pillars and furniture in a building, there is a high risk of fire hoses coming into contact with the corners and damaging them. It is preferable to use a fire hose with a jacket structure.

  In the present invention, the cylindrical jacket is formed by weaving warp yarn and weft yarn, and at least the warp yarn exposed on the surface must have a photocatalytic function. Moreover, the whole cylindrical jacket may have a photocatalytic function. The reason that “at least the warp yarn exposed on the surface has a photocatalytic function” required that, among the woven tubular jackets, the weft yarn is hardly exposed on the surface of the tubular jacket, and the warp yarn is tubular. This is because the surface of the jacket is exposed. By giving the photocatalyst function to the warp yarn, etc., the organic matter on the hose surface can be decomposed by the photocatalyst when sun-dried, making it difficult to cause mold and slime.

In the present invention, it is necessary that at least one pinhole is formed per 1 m along the longitudinal direction of the fire hose. The pinholes are preferably formed at equal intervals in the longitudinal direction of the hose so that water in the hose oozes out to the surface of the cylindrical jacket, and at least one location in the circumferential direction. Preferably it is. Moreover, it is preferable that the area of the diameter of a pinhole is 0.1-1 mm < ² >. Here, when the diameter is less than 0.1 mm ² , the water in the fire hose does not sufficiently bleed out of the hose during water passage, and when the diameter exceeds 1 mm ² , the water goes out of the hose and the surroundings are immersed in water. Because there is a risk of doing. The water from the pinhole does not erupt like a fountain, but has the function of forming a water film on the surface that has exuded to the surface of the cylindrical jacket with a catalytic function and became superhydrophilic. Is preferred. As a result, the fire hose can be prevented from being damaged by heat, the frictional resistance can be reduced, and the trauma can be reduced.

(Example)
Next, a fire hose having a single structure according to an embodiment of the present invention will be described with reference to FIGS. 1 is a partially cutaway side view of the fire hose, FIG. 2 is a longitudinal sectional view of the fire hose of FIG. 1, and FIG. 3 is a cross sectional view of the fire hose of FIG.
Reference numeral 1 in the drawing is a fire hose having an outer diameter of 40 mm, and connecting metal fittings 2 and 3 are attached to both ends thereof. The connecting fittings 2 and 3 are each fixed to the fire hose by a fixing tool 4 such as a wire. The fire hose 1 has a cylindrical jacket 5 having a single structure made of a cylindrical fabric. On the inner surface of the cylindrical jacket 5, a resin tube 6 as a lining layer is formed integrally with the cylindrical jacket 5 for the purpose of eliminating water leakage. Here, a polyester elastomer is used as the resin tube 6.

  The tubular woven fabric of the tubular jacket 5 has a woven structure composed of a plurality of warps 5a woven in the hose longitudinal direction and wefts 5b woven so as to be spirally wound around these warps 5a in the circumferential direction. It is woven into a 1/1 plain weave. Here, the warp yarn 5a is a yarn mixed with photocatalyst (trade name: Sundia, manufactured by Omikenshi Co., Ltd.), and its thickness is 20 / 6s (where "20" is the count and "6" indicates the number), the number Is using 400. Further, polyester filaments 1100 dtex / 5 (where “1100” indicates the thickness and “5” indicates the number) are used for the weft.

The cylindrical jacket 5 and the resin tube 6 of the fire hose 1 have pinholes 7 with a hole area of 1 mm ² along the longitudinal direction of the fire hose 1 at regular intervals and along the circumferential direction. It is formed in two places. The pinhole 7 can be opened with a cone or the like when the hose is flat, but is not limited thereto.

The above embodiment has the following effects.
(1) While using the yarn which mixed the photocatalyst with the warp yarn 5a of the cylindrical jacket 5, and providing the several pinhole 7 along the longitudinal direction of the fire hose 1, the water inside a hose is permeable to water. It works to form a water film on the surface of the cylindrical jacket 5 that has oozed out into the superhydrophilic state. Therefore, the fire hose 1 can be prevented from being damaged by fire dust or the like at the fire site, and the frictional resistance of the hose surface can be reduced by the water film. Further, when the fire hose 1 is dragged on the road surface, it is possible to reduce the occurrence of trauma on the fire hose surface.

(2) By using the yarn mixed with the photocatalyst in the warp yarn 5a, after removing the fire hose 1, the dirt is easily removed when washed with water, and the dirt due to organic matter on the fire hose surface is decomposed by the photocatalyst when sun-dried, Can prevent mold and slime from sticking.
(3) Since the hole area of the pinhole 7 is as small as 1 mm ² , it can exude a much smaller amount of water than a conventional wet hose and can be used for indoor fire fighting activities. Conventional wet hoses are limited to fire extinguishing activities such as forest fires because of the problem of water damage when used indoors.
(4) The photocatalytic activity of the warp yarn 5a is manifested at the moment when light strikes, but the hydrophilic group produced thereby lasts for a certain period of time even when there is no light, so a water film is maintained to some extent even if it suddenly becomes dark can do.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

Specifically, the thickness, number, type, and woven structure of the warp and weft are not limited to those described in the above embodiments. In the above-described embodiment, the case where the photocatalytic function is provided only on the warp yarn has been described. However, the tubular jacket itself may be provided with the photocatalytic function by treating the hose surface with the photocatalyst processing liquid after weaving. Further, the number of pinholes, the hole diameter, and the position are not limited to those described in the above embodiment, and can be appropriately selected according to the place where the hose is used. Furthermore, although the case where the cylindrical jacket has a single structure has been described in the above embodiment, a double jacket structure having an outer cylinder jacket and an inner cylinder jacket can be used. In this case, it is particularly effective for fire extinguishing activities at a fire site in a place where there are many corners such as pillars. Further, a coating layer of rubber or the like in which a photocatalyst is dispersed may be scattered on the surface side of the cylindrical jacket to prevent the cylindrical jacket from being worn or deteriorated.
Hereinafter, the invention described in the scope of claims of the present application will be appended.
[1] In a fire hose comprising a cylindrical jacket woven with warp and weft and a lining layer provided inside the cylindrical jacket, the warp exposed at least on the surface of the cylindrical jacket has a photocatalytic function. A fire hose characterized in that at least one pinhole is formed per 1 m along the longitudinal direction.
[2] The fire hose according to [1], wherein the cylindrical jacket itself has a photocatalytic function.
[3] The cylindrical jacket includes an outer cylinder jacket woven with warp and weft, and an inner cylinder jacket arranged inside the outer cylinder jacket and woven with warp and weft. The fire hose according to [1] or [2].
[4] The fire hose according to any one of [1] to [3 ], wherein an area of a diameter of the pinhole is 0.1 to 1 mm ² .

  DESCRIPTION OF SYMBOLS 1 ... Fire hose, 2, 3 ... Connecting bracket, 4 ... Fixing tool, 5 ... Cylindrical jacket, 5a ... Warp, 5b ... Weft, 6 ... Resin tube, 7 ... Pinhole.

Claims (4)

In a fire hose equipped with a tubular jacket woven with warp and weft, and a lining layer provided inside the tubular jacket,
The warp yarn exposed on at least the outer surface of the cylindrical jacket is a yarn mixed with a photocatalyst, extends from the hose to the outer surface of the cylindrical jacket over the cylindrical jacket and the lining layer, and at least the hose. A fire hose characterized by forming a pinhole formed at one or more locations per meter along the longitudinal direction and allowing the water in the hose to ooze out to the outer surface of the cylindrical jacket .   The fire hose according to claim 1, wherein the weft thread which is one configuration of the cylindrical jacket is also a thread mixed with a photocatalyst.   The cylindrical jacket comprises an outer cylinder jacket woven with warp yarns and weft yarns, and an inner cylinder jacket woven with warp yarns and weft yarns arranged inside the outer cylinder jacket. The fire hose according to claim 1 or claim 2. The fire hose according to any one of claims 1 to 3, wherein an area of a diameter of the pinhole is 0.1 to ¹ mm2.

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