JP2018102470A - Fire hose - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire hose having both abrasion-resistance on a surface and an adhesive property with a lining on an inner surface.SOLUTION: A surface warp largely exposed on a surface of a jacket and an inner-face warp largely exposed on an inner face of the jacket are alternately provided. On an inner face of the jacket that is composed of a double-warp woven structure in which a group of the warps and the weft are woven, a lining made of rubber or synthetic resin is provided to form a hose. The inner-face warp includes yarn made of synthetic fiber or bulky fiber yarn.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a fire hose, and more particularly to a fire hose in which a flexible jacket formed by weaving warp and weft is provided with a rubber or synthetic resin lining.

  As shown in Japanese Utility Model Publication No. 58-24708, a conventional fire hose is a jacket in which warp yarns and weft yarns are woven in a plain weave structure, and the weft yarns are exposed to the outside and exposed to sunlight or trauma. In order not to be damaged, warp yarns were extremely mixed and covered with weft yarns.

  However, in such a jacket, the hose is heavy and stiff, and it is inconvenient to handle. Therefore, as shown in Japanese Patent Application Laid-Open No. 2003-74756, the jacket is formed with a twill weave structure in which a large amount of warp yarn is exposed on the surface of the jacket. Weaving has come to be considered.

  By weaving the jacket with a twill weave, a lot of warp yarn is exposed on the surface, so even if the warp yarn is not mixed so much, the weft yarn will not be damaged, and the hose will be light and flexible accordingly. There are advantages.

  However, in a structure in which a large amount of warp yarn is exposed on the surface of the jacket, a large amount of weft yarn is exposed when viewed from the back surface of the jacket, and the weft yarn is mainly bonded to the lining, resulting in poor adhesion between the jacket and the lining.

  That is, the weft yarn of the jacket is preferably a filament yarn having a high strength in order to bear the pressure resistance of the hose, but the filament yarn has no fluff and therefore has poor adhesion to the lining.

  In the hose disclosed in Japanese Utility Model Publication No. 58-24708, a spun yarn is used as the warp, and the spun yarn has a lot of fluff and is bonded to the lining by the fuzz, and has sufficient adhesiveness. .

  The spun yarn is also excellent in abrasion resistance when the hose is dragged, and by exposing the spun yarn to the surface for a long time, the hose has excellent abrasion resistance. The hose disclosed in Japanese Patent Application Laid-Open No. 2003-74756 is intended to expose the warp yarn having excellent wear resistance on the surface, and is excellent in that respect, but the inner weft is long. By exposing, it is inevitable that the adhesiveness with the lining is inferior.

Japanese Utility Model Publication No. 58-24708 JP 2003-74756 A

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a fire hose that has both the wear resistance of the surface and the adhesion to the lining of the inner surface. .

  Thus, in the present invention, the warp yarn exposed long on the surface of the jacket and the back warp yarn exposed long on the inner surface of the jacket are alternately arranged, and the warp yarn group and the weft yarn are woven by a double weave structure. In the hose formed by lining a rubber or synthetic resin on the inner surface of the jacket, the back warp yarn includes a spun yarn of a synthetic fiber or a bulky long fiber yarn.

  In the present invention, the back warp yarn preferably contains 20% or more of spun yarn of synthetic fiber or bulky long fiber yarn.

  In the present invention, the warp yarn preferably includes a spun yarn of a synthetic fiber or a bulky long fiber yarn, and preferably includes 20% or more of the spun yarn of the synthetic fiber or a bulky long fiber yarn.

  The warp yarns having various functions can be used. For example, 10% to 50% spun yarn of high-strength and high-elasticity fiber, 5 phosphorescent fibers, fluorescent fibers, or light reflecting fibers can be used. It can contain ~ 20%. Further, the yarn containing the phosphorescent fiber, the fluorescent fiber or the light reflecting fiber is not necessarily used for all the warp yarns, and can be used only partially.

  According to the present invention, the warp yarn exposed long on the surface of the jacket and the back warp yarn exposed long on the inner surface of the jacket are alternately arranged, and the warp yarn group and the weft yarn are woven with a double weave structure. Therefore, the warp yarn covers both the front and back of the jacket, and the weft yarn is sandwiched between the front warp yarn and the back warp yarn, so the weft yarn is protected from trauma such as sunlight and wear and is damaged. There is no.

  And the inner surface of the jacket is exposed for a long time, and the back warp yarn is made of synthetic fiber spun yarn or bulky long fiber yarn with excellent adhesion to the lining, so the weft yarn does not touch the lining The back warp made of spun yarn or bulky long fiber yarn has excellent adhesion to the lining.

  Further, in the conventional twill hose, the weft yarn also contributes to the bonding with the lining, so it was necessary to mix the weft yarn with a spun yarn or a bulky long fiber yarn, but according to the present invention, the weft yarn is a lining. Therefore, it is possible to use filament yarns having high strength for all of them, increasing the pressure resistance and reducing the weight of the hose itself.

  In addition, by using yarns containing synthetic fiber spun yarns or bulky long fiber yarns as the warp yarns, these yarns are bulky and effectively cover and protect the weft yarns, and also ensure the wear resistance of the hose. be able to.

It is a design figure in the surface of the jacket of the present invention. The structure of the jacket of this invention is shown, Comprising: (a) is a surface figure, (b) is bb sectional drawing.

  The present invention will be described below with reference to the drawings. In the drawing, the jacket 1 is formed by weaving warp yarns 2 and weft yarns 3, and the warp yarns 2a and back warp yarns 2b are alternately arranged as the warp yarns 2.

  The warp yarn 2a is woven with a 3/1 twill weave that is exposed to the surface of the jacket 1 with respect to the weft yarn 3, and the back warp yarn 2b is １ ／ that is exposed to the inner surface of the jacket 1 with respect to the weft yarn 3. Woven by twill.

  Therefore, the warp yarn 2a floats mainly on the surface of the jacket 1 and floats only on the inner surface, so that the tension is loosened on the surface of the jacket 1, and the back warp yarn 2b is loosened on the inner surface of the jacket 1 on the contrary, The warp yarn 2 a is biased to the surface of the jacket 1, and the back warp yarn 2 b is biased to the inner surface of the jacket 1.

  Therefore, on the surface of the jacket 1, the portion floating on the surface of the back warp yarn 2b is also surrounded by the warp yarn 2a and hardly appears on the surface. However, it is wrapped in the back warp thread 2b and hardly appears on the back surface. Therefore, only the warp yarn 2a appears on the surface of the jacket 1, and only the back warp yarn 2b appears on the inner surface.

  Therefore, according to the present invention, only the back warp yarn 2b containing the spun yarn of synthetic fiber or the bulky long fiber yarn exists on the inner surface of the jacket 1, and neither the warp yarn 2a nor the weft yarn 3 is exposed to the inner surface. The jacket 1 has a very good adhesion to the lining.

  Since the weft 3 is not exposed on the inner surface of the jacket 1, a filament yarn having a high strength can be used. Even in such a case, the adhesiveness between the jacket 1 and the lining is not hindered.

  In the present invention, the back warp yarn 2b preferably contains 20% or more of spun yarn of synthetic fiber or bulky long fiber yarn. If it is less than 20%, the spun yarn or bulky long fiber yarn of the synthetic fiber exposed on the back surface of the jacket 1 is insufficient, and sufficient adhesion with the lining cannot be obtained.

  Further, by using a yarn including a synthetic fiber spun yarn or a bulky long fiber yarn as the warp yarn 2a, the spun yarn or the bulky long fiber yarn is excellent in wear resistance, and is bulkier than a filament yarn. Therefore, the weft 3 is effectively hidden from sunlight and wind and rain, and the wear resistance of the jacket 1 is excellent.

  It is preferable that the warp yarn 2a also contains 20% or more of spun yarn of synthetic fiber or bulky long fiber yarn. If this is less than 20%, the wear resistance of the jacket 1 and the weft protection from sunlight and wind and rain will be insufficient.

  Further, the warp yarn 2a having various functions can be used. For example, a hose having a high strength in the length direction can be obtained by using a yarn including a spun yarn of high strength and high elasticity fiber.

  The high-strength and high-elasticity fiber in the warp yarn 2a needs to be spun yarn. When the filament yarn of high strength and high elasticity fiber is used, the utilization factor of the strength in the warp yarn 2a and consequently in the jacket 1 is lowered.

  The amount of the high-strength and high-elastic fiber is suitably 10 to 50%. If it is less than 10%, the strength of the high-strength high-elastic fiber cannot be sufficiently exhibited. If it exceeds 50%, the high-strength high-elastic fiber is too much and expensive, and the warp yarn 2a has too high strength. The yarn of 2a becomes thin, and the protective function of the weft is reduced.

  In addition, phosphorescent fibers, fluorescent fibers, or light-reflecting fibers are used for fire fighting hoses so that firefighters can escape safely from the fire site. By using the yarn including the fiber, the fluorescent fiber, or the light reflecting fiber, these expensive fibers can be used only on the surface of the jacket 1, and the safety of the firefighter can be achieved.

  Further, these phosphorescent fibers and the like can sufficiently function if they contain 5 to 20% of the warp yarn 2a. If it is less than 5%, light is insufficient, and if it is used in excess of 20%, it is only expensive and has no effect. Further, it is not necessary to use all the yarns containing these phosphorescent fibers as the warp yarn 2a of the jacket 1, and it is sufficient to use them partially.

  In the above description, the warp yarn 2a is described as a 3/1 twill weave and the back warp yarn 2b is described as a 1/3 twill weave. However, the warp yarn 2a is a structure that is exposed on the surface of the jacket for a long time. The warp yarn 2b need only be a structure that is exposed to the inner surface of the jacket for a long time. For example, the warp yarn 2a is 2/1 twill or 4/1 twill, and the back warp 2b is 1/2 twill or 1/4 twill. It may be.

1 Jacket 2a Front warp 2b Back warp 3 Weft 4 Lining

Claims (7)

On the inner surface of the jacket, a warp yarn that is exposed long on the surface of the jacket and a back warp yarn that is exposed on the inner surface of the jacket are alternately arranged, and the warp yarn group and the weft yarn are woven by a double woven structure. Or a hose formed with a synthetic resin lining, wherein the back warp includes a spun yarn of a synthetic fiber or a bulky long fiber yarn. 2. The fire hose according to claim 1, wherein the warp yarn includes 20% or more of a spun yarn of a synthetic fiber or a bulky long fiber yarn. The fire hose according to claim 1 or 2, wherein the warp yarn includes a spun yarn of a synthetic fiber or a bulky long fiber yarn. The fire hose according to claim 3, wherein the warp yarn includes 20% or more of a spun yarn of a synthetic fiber or a bulky long fiber yarn. The fire hose according to claim 1, 2, 3, or 4, wherein the warp yarn contains 10 to 50% spun yarn of high strength and high elasticity fiber. 5. The fire hose according to claim 1, wherein the warp yarn contains 5 to 20% of phosphorescent fiber, fluorescent fiber, or light reflecting fiber. The fire hose according to claim 6, wherein the warp yarn partially contains 5% or more of phosphorescent fibers, fluorescent fibers, or light reflecting fibers.

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