JP2019193685A - Fire hose - Google Patents

Abstract

To aim showing a V-shaped index mark expressing a retreat direction in a part of a fire hose by weave of a jacket, and clearly showing the V-shaped index mark beautifully or even in the case of being worn.SOLUTION: A fire hose 1 in which a lining 3 is applied to the inner face of a jacket 2 woven by a twill weave texture comprising an annularly arranged warp yarn 5 and a weft yarn 6 spirally woven to the warp yarn 5 so as to make the warp yarn 5 dense is such that: a part in the circumferential direction of the jacket 2 is formed with a twill weave texture (called reverse twill thereafter) in which a direction of a twill line becomes reverse to the twill weave texture (called normal twill thereafter); and a colored warp yarn 11 almost the same number of the warp yarn 5 and the warp yarn 5 thicker by 5-40% than the colored warp yarn 11 in a cross section and not-colored or colored to different hue are alternately used on both sides from one boundary 9 between the normal twill and the reverse twill.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fire hose in which a lining material is applied to the inner surface of a jacket made of a warp yarn arranged in an annular shape and a weft yarn spirally woven with respect to the warp yarn, and in particular, the fire hose of the fire hose. The present invention relates to a fire hose in which a V-shaped index indicating a retreat direction is partly expressed by weaving of the jacket.

  In general, fire hoses are used for fire extinguishing activities in the event of a fire, but firefighters are often wound in smoke and lose their direction. Especially in fire fighting activities in buildings, firefighters have lost the direction to evacuate, causing a painful accident where they are caught in fire and burned.

  In order to prevent such an accident, one of the fire hoses that must be present at the fire site is always connected to the fire pump outside the fire site, so the fire hose should indicate the direction in which the firefighter should evacuate. Has been proposed.

  For example, in Japanese Patent No. 4997845, Japanese Patent Application Laid-Open No. 2004-132443, Utility Model Registration No. 3091291, etc., it has been proposed to provide an arrow indicator on a fire hose. It is displayed with a coating material such as paint, and may disappear when the hose is worn.

  Further, Japanese Patent No. 6093893 and Japanese Patent No. 6116732 propose to express the arrow index by jacket weaving. Although these did not disappear due to wear, the arrow index was unclear and the retreat direction was difficult to understand.

  In view of these circumstances, the applicant previously applied as a Japanese Patent Application No. 2018-71960 by lining the inner surface of a jacket woven with an oblique weaving structure so that the warp yarns become dense with warp yarns and weft yarns. In the fire hose, a part of the circumferential direction of the jacket is formed with an oblique weave texture in which the direction of the oblique line is opposite to the oblique texture structure, and one of the normal oblique text and the reverse oblique text Proposed a display with clear V-shaped index by alternately using colored warp yarns and uncolored or colored warp yarns on the same number of warp yarns on both sides from the boundary did.

  However, in this case, since the colored warp thread forms a V-shaped index indicating the retreat direction, when the jacket is worn by dragging the fire hose, the colored warp thread is worn and the color becomes light, The V-shaped index may become unclear.

Japanese Patent No. 4997845 JP 2004-132443 A Utility Model Registration No. 3091291 Japanese Patent No. 6093893 Japanese Patent No. 6116732

  The present invention has been made in view of such circumstances. A V-shaped index indicating a retraction direction is represented by a portion of a fire hose by the weaving of the jacket, and the V-shaped index is displayed beautifully and clearly. In addition, the object is to prevent the V-shaped index from becoming unclear due to wear.

  Thus, the present invention provides an inner surface of a jacket woven by an oblique weaving structure so that the warp yarns are densely formed by an annularly arranged warp yarn and a weft yarn spirally woven with respect to the warp yarn. In a fire hose having a lining, in a part of the circumferential direction of the jacket, a diagonal weaving structure (hereinafter referred to as regular oblique text) in which the direction of the oblique line is opposite to the oblique text weaving structure (hereinafter referred to as regular oblique text) In the cross-sectional area from the colored warp yarn and the colored warp yarn in the same number of warp yarns on both sides from one boundary between the normal and reverse oblique texts. 5 to 40% thick uncolored or warp yarn colored in another color is used alternately.

  In the present invention, the colored warp yarn can be a phosphorescent yarn or a reflective yarn. In the present invention, it is preferable that the jacket is woven with warp and weft yarns in a 2/1 oblique weave structure. In the present invention, it is preferable that colored warp yarns and uncolored or colored warp yarns are alternately used over the entire portion where the reverse oblique lines are formed.

  Further, in the present invention, reverse oblique texts are formed at a plurality of locations in the circumferential direction of the jacket, and even in all the reverse oblique texts, on both sides from one boundary between the regular oblique text and the reverse oblique text, It is also possible to alternately use colored warp yarns and uncolored or colored warp yarns for the same number of warp yarns.

Plan view of fire hose of the present invention Organization chart of the jacket of the present invention Organizational chart of colored warp woven into the jacket of Fig. 2 Schematic diagram schematically showing the structure of the jacket of FIG. Surface view of the jacket of FIG. VI-VI cross section in FIG.

  The present invention will be described below with reference to the drawings. FIG. 1 shows a fire hose 1 according to the present invention, 2 is a jacket, and a flexible rubber or plastic lining 3 is applied to the inner surface of the jacket 2. In the present invention, the V-shaped index 4 indicating the retracting direction (rightward in FIG. 1) is displayed on the surface of the jacket 2 by the woven structure of the jacket 2.

  Thus, FIG. 2 shows an organization chart of the jacket 2 according to the present invention. The jacket 2 is composed of a warp yarn 5 arranged in an annular shape and a weft yarn 6 woven spirally with respect to the warp yarn 5. As a whole, it is woven with a 2/1 oblique weave structure, and the oblique line 7 that rises to the left appears mostly due to the oblique texture structure.

  In the following description in this specification, the oblique texture in which the leftward oblique line appears is referred to as “regular oblique”, and the oblique texture in which the upward oblique line appears in the opposite direction. Is referred to as “reverse oblique text”.

  Thus, a portion of the jacket 2 in the circumferential direction is woven with a 2/1 oblique weave structure reverse to that of the above-described regular oblique text. A diagonal line 8 that rises to the right appears, and diagonal lines 7 and 8 appear in a chevron shape at boundaries 9 and 10 between the normal and reverse oblique lines.

  Thus, in the present invention, as shown in FIG. 3, the colored warp yarn 11 and the uncolored color are formed over the same number of warp yarns 5 on both the left and right sides from one boundary 9 between the normal oblique line and the reverse oblique line. The warp yarns 5 are used alternately.

  In FIG. 3, warped yarns 11 are arranged over the entire portion of the reverse oblique sentence, and the reverse oblique sentence is placed on the right oblique side from one boundary 9 between the normal oblique sentence and the reverse oblique sentence. Although the warp yarns 11 colored in the same number as the warp yarns 11 in the portion are used, the present invention is not limited to this configuration, and the warp yarns 11 colored only in a part of the reverse oblique portions are used, It is also possible to use warp yarns 11 that are colored in the same number as the warp yarns 11 of the reverse oblique text from one boundary 9 to the oblique text side.

  FIG. 4 is a diagram schematically showing the structure of the jacket 2 shown in FIG. 3 with the warp threads 5 and 11 and the weft thread 6 easily spaced, and the weaving structure is exactly the same as FIG. Shows the organization.

  FIG. 5 is a surface view of the jacket 2 shown in FIGS. 3 and 4 and shows a pattern appearing on the surface of the jacket 2 by the colored warp yarn 11 and the uncolored warp yarn 5. 5 also shows the same structure as that shown in FIGS. 3 and 4 as the weave structure.

  By the way, in general, the fire hose 1 is often used by being dragged violently on the ground, and the weft thread 6 of the jacket 2 mainly bears pressure resistance, so that the weft thread 6 is damaged when the fire hose 1 is dragged. There must not be a thing.

  Therefore, in order to prevent the weft yarn 6 from being exposed from the jacket 2, the warp yarns 5 and 11 of the jacket 2 are mainly woven so as to be dense, and only the warp yarns 5 and 11 are exposed on the surface, and the weft yarn 6 is exposed to the warp yarns 5 and 11. It is configured so as not to be exposed to the surface of the jacket 2 by being hidden by the cover.

  Accordingly, in FIG. 4, the weft thread 6 is largely exposed from between the warp threads 5 and 11, but in the actual jacket 2, the warp threads 5 and 11 protrude from both sides to the portion where the weft thread 6 is exposed. The weft yarn 6 is covered with the warp yarn as shown in FIG. 6 and only the warp yarns 5 and 11 cover the surface of the jacket 2.

  Therefore, the colored warp yarn 11 protrudes from both sides of the weft yarn 6 and touches each other, and the uncolored warp yarn 5 protrudes from both sides of the weft yarn 6 in the same manner, and has an oblique stripe pattern opposite to the oblique lines 7 and 8. In the regular oblique part, a stripe pattern 12 that rises to the right is represented, and in the reverse oblique part, a stripe pattern 13 that rises to the left is represented. As shown in FIG. Will be expressed.

  In the present invention, as shown in FIG. 6, in the portion representing the V-shaped index 4, the warp yarn 14 that is 5 to 40% thicker in cross-sectional area than the colored warp yarn 11 is used as the uncolored warp yarn. .

  For example, when the warp yarn 5 and the colored warp yarn 11 use a yarn obtained by twisting six 200 tex yarns, a yarn obtained by twisting seven or eight 200 tex yarns as the thick warp yarn 14 is used. It is appropriate to do. When seven strands are twisted together, it is 16.6% thicker than the six strands, and when eight strands are twisted, it is 33.3% thicker than the six strands.

  In the above description, the warp yarns other than the colored warp yarns 11 are all described as being uncolored warp yarns. However, in the portion forming the V-shaped index 4, in place of the uncolored warp yarns, It is also possible to use a warp yarn colored in a different color from the color of the colored warp yarn 11.

  Moreover, in the above description, it is supposed to form reverse oblique lines only at one place in the circumferential direction of the jacket 2, but not limited to such a configuration, reverse oblique lines are formed at a plurality of places in the circumferential direction of the jacket 2, The V-shaped index 4 can also be provided at all the reverse oblique portions in the same manner as described above.

  By doing in this way, even when the fire hose 1 is twisted, any V-shaped index 4 always enters the firefighter's field of view, so it is safe because the firefighter's retreat direction can always be indicated. .

  According to the present invention, symmetrical stripe patterns 12 and 13 are formed by normal and reverse oblique texts, and the beautiful and clear symmetrical V-shaped index as shown in FIG. 4 can be expressed, and the firefighter can know the evacuation direction at a glance and can evacuate safely.

  If the right side of the fire hose 1 in FIG. 1 is connected to the fire pump and the left side to the tube tip, the V-shaped index 4 will naturally guide the firefighter to the right, that is, toward the terminal connected to the pump. Can be evacuated.

  Further, according to the present invention, the V-shaped index 4 is expressed by the weaving of the jacket 2, and is expressed by the colored warp yarn 11, so that the V-shaped index 4 is not invisible due to wear or the like.

  Further, according to the present invention, in the portion representing the V-shaped index 4, the uncolored warp yarn uses the warp yarn 14 which is thicker than the colored warp yarn 11, and this portion is rubbed against the ground and worn. Even in this case, only the uncolored warp yarn 14 is worn, and the colored warp yarn 11 is rarely worn, and the V-shaped index 4 is not blurred and can be retreated more safely. .

  In particular, when phosphorescent yarns or reflective yarns are used as the colored warp yarns 11, these yarns tend to lose their function due to wear. In the present invention, there is a thick warp yarn 14 adjacent to the colored warp yarns 11. Therefore, the colored warp 1 is protected by the thick warp 14 and is not worn.

DESCRIPTION OF SYMBOLS 1 Fire hose 2 Jacket 3 Liner 4 V-shaped index 5 Warp thread 6 Weft thread 7 Slanted line of orthographic text 8 Slanted line of inverted text 9, 10 Boundary between orthographic text and inverted text 11 Colored warp thread 12, 13 Stripe 14 Thick warp

Claims (5)

The warp yarn (5) arranged in an annular shape and the weft yarn (6) spirally woven with respect to the warp yarn (5) are woven with an oblique weaving structure so that the warp yarn (5) becomes dense. In the fire hose (1) formed by lining (3) on the inner surface of the jacket (2), the direction of the oblique line is a part of the circumferential direction of the jacket (2), and the direction of the oblique line (hereinafter referred to as the oblique line texture) A reverse weave texture (hereinafter referred to as “reverse oblique text”), and on both sides from one boundary (9) between the normal oblique sentence and the reverse oblique sentence. Colored warp yarns (11) and warp yarns (14) uncolored or colored in a different color 5 to 40% thicker in cross-sectional area than the colored warp yarns (11) over almost the same number of warp yarns (5) ) And fire hose characterized by being used alternately The fire hose according to claim 1, characterized in that the colored warp (11) is a phosphorescent or reflective yarn. The fire hose according to claim 1 or 2, characterized in that the jacket (2) is woven with warp yarns (5, 11) and weft yarns (6) in a 2/1 oblique weave texture. The colored warp yarns (11) and the uncolored or colored warp yarns (5) are used alternately over the entire portion where the reverse oblique lines are formed, Fire hose according to 2 or 3 Forming reverse slant at a plurality of locations in the circumferential direction of the jacket (2), and also at all the reverse slant portions on both sides from one boundary (9) of the normal slant and reverse slant, The colored warp yarns (11) and the uncolored or colored warp yarns are used alternately over almost the same number of warp yarns (5). Or fire hose as described in 4

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