Fire hose

Abstract

To provide a fire hose that can allow a user to grasp how close he or she gets to a retreat exit or to an origin of fire.SOLUTION: A fire hose 1A includes a hose body 2, a male joint 3 attached to one end of the hose body 2, and a female joint attached to the other end of the hose body 2. The hose body 2 includes a plurality of identification display areas 5a-5h which are divided so that their lengths gradually get shorter along the length direction of the hose body 2, and can be identified from each other. Different colors are arranged for the plurality of identification display areas 5a-5h so that the colors are changed gradually from warm colors to cold colors from a male joint 3 side to a female joint 4 side clockwise in a hue circle.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a fire hose. [Background technology]

[0002] Conventionally, a fire hose has been known in which a plurality of directional markings are arranged at intervals along the longitudinal direction of the hose on the outer peripheral surface of the hose body in order to provide guidance to firefighters, each of the directional markings being composed of a first marking portion and a second marking portion adjacent to each other in the longitudinal direction of the hose, the first marking portion having a first color and the second marking portion having a second color (Patent Document 1, etc.). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-203019 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the past, when a fire broke out, the roofs and walls of houses fell off, so firefighters could fight the fire by spraying water from outside. However, now that airtight, highly insulated houses have become widespread, there are more and more firefighting scenes where firefighters are forced to enter inside the building to fight the fire. Even if fire hoses and search ropes are used as lifelines, it is difficult to see them in the thick smoke (darkness). Furthermore, when engaging in firefighting activities, firefighters are always at risk of having their hands full and their field of vision restricted by face masks (air breathing apparatus), and when entering and evacuating, not only indoors but also outdoors at night, firefighters are always at risk of increased effort in deployment and withdrawal work due to fire hoses and search ropes getting tangled in obstacles, and transportation problems (stepping on or tripping over the fire hoses).

[0005] When firefighters are fighting a fire indoors, for example, if there is a person in need of rescue indoors, they communicate with the outside world to inform them of the person's location when calling for help. However, if the power goes out at night and the room is filled with smoke, and even if you shine a light, you can only see a short distance, it is not possible to carry out a swift rescue operation if you do not know where the person is located inside the room.

[0006] In addition, when firefighters are engaged in indoor firefighting activities, they carry oxygen tanks for breathing apparatus on their backs and enter the building to carry out firefighting activities. However, because there is a time limit on the oxygen tank, they must estimate their approximate entry distance based on the distance they have traveled and estimate their range of movement accordingly. However, if they make a wrong estimate, it could lead to an accident.

[0007] Firefighters heading to an indoor fire scene can easily carry out rescue operations while ensuring the safety of rescue personnel if they can know how close they are to the source of the fire as they enter and proceed inside the building where the fire is, and how close they are to an evacuation exit when they leave the building. However, the above-mentioned conventional fire hoses with guidance functions can identify the evacuation direction, but cannot tell whether they are close to or far from the evacuation exit (water source side).

[0008] To provide a fire hose which has a function of guiding a firefighter in an evacuation direction and also allows the firefighter to grasp how close he is to an evacuation exit or to the source of a fire. [Means for solving the problem]

[0009] In order to achieve the above object, a fire hose according to one embodiment of the present invention comprises a hose body, a male fitting attached to one end of the hose body, and a female fitting attached to the other end of the hose body, the hose body being divided so that the length gradually decreases along the longitudinal direction of the hose body and including a plurality of distinguishable identification marking areas.

[0010] The plurality of identification display regions may be colored differently from one another so as to gradually change from warm colors to cool colors in a clockwise direction of a color wheel from the male joint side to the female joint side.

[0011] In addition, a fire hose according to another embodiment of the present invention includes a hose body, a male fitting attached to one end of the hose body, and a female fitting attached to the other end of the hose body, and the hose body includes a plurality of identification markings arranged at progressively shorter intervals along the length of the hose body.

[0012] The plurality of identification marking portions may be colored differently from one another so as to gradually change from warm colors to cool colors in a clockwise direction of a color wheel from the male joint side to the female joint side. Effect of the Invention

[0013] According to the fire hose of the present invention, by providing a plurality of identification markings whose length in the direction of the hose length gradually decreases as the fire hose moves from one end to the other end, or by providing a plurality of identification markings whose spacing gradually decreases as the fire hose moves from one end to the other end, it is possible to determine how close the fire hose is to an evacuation exit or how close it is to the source of the fire as the length of the identification marking area or the spacing between the identification markings becomes shorter.

[0014] In addition, by distributing the identification display areas or identification display sections distributed along the length of the hose body in a manner that gradually changes from warm colors to cool colors in a clockwise direction on the color wheel from the male coupling side to the female coupling side, it is possible to intuitively grasp how close or far away the user is from the source of the fire. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a plan view showing a first embodiment of a fire hose according to the present invention. [Diagram 2] A grayscale representation of the contours of the PCCS hue diagram. [Diagram 3] FIG. 4 is a plan view showing a second embodiment of a fire hose according to the present invention. [Figure 4] FIG. 4 is a plan view showing a third embodiment of a fire hose according to the present invention. [Diagram 5] FIG. 11 is a plan view showing a fourth embodiment of a fire hose according to the present invention. [Figure 6] FIG. 11 is a plan view showing a fifth embodiment of a fire hose according to the present invention. [Figure 7] FIG. 13 is a plan view showing a sixth embodiment of a fire hose according to the present invention. [Figure 8] FIG. 13 is a plan view showing a seventh embodiment of a fire hose according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A fire hose according to an embodiment of the present invention will now be described with reference to Figures 1 to 7. In addition, the same reference numerals are used to designate the same or similar components throughout the embodiments.

[0017] First, a first embodiment of a fire hose according to the present invention will be described with reference to Fig. 1. Referring to Fig. 1, a fire hose 1A includes a hose body 2, a male joint 3 attached to one end of the hose body 2, and a female joint 4 attached to the other end of the hose body 2.

[0018] The hose body 2 has a hose jacket made of synthetic fiber warp and weft woven into a cylindrical shape, and the inner surface is lined with a rubber or synthetic resin lining (not shown). The male joint 3 and female joint 4 are plug-in type coupling joints known as Machino type, but other types, such as screw type coupling joints, can also be used.

[0019] A flat hose with a nominal length of 20 meters is generally used as the fire hose 1A. The nominal length is the length indicated on the hose body 2 of the fire hose 1A, and it is mandatory to indicate it. Since an error of +10% is permitted for the nominal length, the length of the hose body 2 with a nominal length of 20 meters is 20 to 22 meters. The inner diameter (nominal) of the hose body 2 of the fire hose 1A is generally 65 mm, 50 mm, or 40 mm. Note that the illustrated fire hose 1A, including other embodiments, is illustrated with exaggerated dimensional ratios of the hose body 2, male joint 2, and female joint 4 to make it easier to understand the overall configuration, and differs from the dimensional ratios of the actual product.

[0020] The fire hose 1A is provided with a plurality of distinguishable marking regions 5a-5h which are divided so that their lengths become gradually shorter along the length direction of the hose body and which are distinguishable from one another. In the illustrated example, the plurality of distinguishable marking regions 5a-5h are color-coded so that their lengths in the hose length direction become gradually shorter from the male joint 3 side to the female joint 4 side of the hose body 2, making them distinguishable from one another. In the illustrated example, the lengths of the distinguishable marking regions 5a-5h become shorter from the male joint 3 side to the female joint 4 side, but they may also be arranged so that they become shorter in the opposite direction.

[0021] The identification display areas 5a to 5h are preferably colored in a clockwise direction of the color wheel, from the male joint 3 side to the female joint 4 side, so that the color-coded pattern is gradually changed from warm to cool. Warm colors are warm-looking colors such as red, orange, and yellow, while cool colors are cool-looking colors such as blue-green, blue, and blue-purple, and intermediate colors such as yellow-green, green, and purple that do not belong to either warm or cool colors. For example, the identification display area 5a can be red, the identification display area 5b orange, the identification display area 5c yellow, the identification display area 5d yellow-green, the identification display area 5e green, the identification display area 5f blue-green, the identification display area 5g blue, and the identification display area 5h blue-purple.

[0022] Referring to Figure 2, in the PCCS (Practical Color Coordinate System) color wheel (the original color wheel is displayed in chromatic colors, but Figure 2 is displayed in grayscale), the following colors are arranged clockwise: 1: pR (purplish red / ruby red, rose red), 2: R (red / poppy red, carmine), 3: yR (yellowish red / vermillion, scarlet), 4: rO (reddish orange / poppy red, carmine), 5: O (orange), 6: yO (Yellowish orange / marigold), 7: rY (reddish yellow), 8: Y (yellow), 9: gY (greenish yellow / lemon yellow), 10: YG (Yellow green / leaf green), 11: It is divided into 24 colors: yG (yellowish green), 12: G (green / emerald green), 13: bG (bluish green / viridian), 14: BG (blue green / peacock green), 15: BG (blue green), 16: gB (greenish blu / cyan), 17: B (blue / cerulean blue), 18:B (blue / cobalt blue), 19: pB (purplish blue / wisteria), 20: V (violet), 21: bP (bluish Purple), 22: P (Purple), 23: rP (reddish purple), 24: RP (red purple). Of these, 1 to 8 are warm colors, 13 to 19 are cool colors, and 9 to 12 and 20 to 24 are neutral colors. To arrange colors so that the colors change from warm to cool in the clockwise direction of the PCCS color wheel, the desired colors are selected from multiple colors from 1 (pR) to 19 (pB) in a clockwise direction. Note that if the colors change from warm to cool in the counterclockwise direction of the PCCS color wheel, the neutral colors are dark purple colors and may be difficult to distinguish in dark places, which is not preferable.

[0023] A color wheel is a circular representation of the visible light spectrum, and in addition to the PCCS color wheel, there are other color wheels such as the Ostwald color wheel. The wavelength of visible light is 800nm ​​to 400nm, with red at 620 to 800nm, orange at 590 to 620nm, yellow at 565 to 590nm, green at 495 to 565nm, blue at 440 to 495nm, indigo (blue-purple) at 430 to 440nm, and violet at 400 to 430nm, so going clockwise on the color wheel, from warm to cool, the colors correspond to wavelengths of 800nm ​​to 430nm (red to indigo).

[0024] Of the warp and weft threads that make up the hose jacket, the weft threads are mostly hidden by the warp threads, and the warp threads are mainly exposed on the surface of the hose jacket. Therefore, by using colored threads that are colored with desired colors for the warp threads of the hose jacket, it is possible to manufacture a fire hose 1 having color-coded identification display areas 5a to 5h as shown in Figure 1. The weft threads of the hose jacket are basically uncolored threads (white), but colored threads can also be used.

[0025] Compared to conventional colored hoses (colored hoses) that are colored by painting the exterior of the hose body 2, the hose body 2 using colored yarn (yarn dyed) does not become hard, can be used as easily as a white (uncolored) hose, and has excellent properties such as almost no stiffness, bending, or color fading due to aging, and maintains its vivid color even after several years. In addition, the length and color of the colored area can be freely and easily set with colored yarn. Furthermore, no new capital investment is required to use colored yarn, and fire hoses can be manufactured using existing manufacturing equipment (circular looms) and conventional manufacturing methods.

[0026] 3 shows a fire hose 1B according to a second embodiment in which the identification display areas 5b, 5d, and 5f are formed with a mesh pattern. In the illustrated example, the identification display areas 5a, 5c, and 5e are filled with chromatic colors, but the identification display areas 5a, 5c, and 5e may be partially or entirely uncolored (white) areas.

[0027] 3, the length of the hose body 2 is 20 meters, the length A of the identification mark region 5a is 5 meters, the length B of the identification mark region 5b is 5 meters, the length C of the identification mark region 5c is 4 meters, the length D of the identification mark region 5d is 3 meters, the length of the identification mark region 5e is 2 meters, and the length of the identification mark region 5f is 1 meter. The length A of the identification mark region 5a and the length B of the identification mark region 5b are the same, but the lengths B to F of the identification mark regions 5b to 5f are gradually shorter.

[0028] The identification marking areas 5a to 5f of the fire hose 1B can also be colored in a manner that gradually changes from warm to cool colors in a clockwise direction of the color wheel from the male joint 3 side to the female joint 4 side. The mesh pattern can be formed by painting the outer surface of the hose jacket.

[0029] FIG. 4 shows a fire hose 1C according to a third embodiment having multiple identification display areas with different vertical stripe patterns. The identification display areas 5a-5f of the fire hose 1C are configured to be distinguishable from one another by changing the thickness and arrangement of the vertical stripes. The lengths of the identification display areas 5a-5f are A=B>C=D>E=F, and gradually shorten every two areas from the male joint 3 side to the female joint 4 side. In the present invention, the embodiment "including multiple identification display areas that are divided so that the length gradually shortens along the length direction of the hose body and are distinguishable from one another" includes a case where the multiple identification display areas gradually shorten every area (FIG. 4) and a case where an area of ​​the same length is adjacent to a part of the multiple areas that gradually shorten (FIG. 3).

[0030] 4 may all be vertically striped in the same color, or may be different colors, preferably with colors that gradually change from warm to cool in a clockwise direction on the color wheel from the male fitting 3 side to the female fitting 4 side. The fire hose 1C of the third embodiment may be manufactured using colored yarns, which have been colored in advance to desired colors, as warp threads.

[0031] 5 shows a fire hose 1D of a fourth embodiment having identification display areas 5a-5h configured with horizontal stripes instead of the identification display areas of the first embodiment. The fire hose 1D of the fourth embodiment has the same configuration as the first embodiment except that the identification display areas have horizontal stripes. The fire hose 1D of the fourth embodiment is configured so that the identification display areas 5a-5h are different in thickness of the vertical stripes, so that the identification display areas 5a-5h can be distinguished from one another, and therefore all of the identification display areas can be configured with stripes of the same color (for example, blue and white stripes).

[0032] 6 shows a fire hose 1E of the fifth embodiment having identification display areas 5a-5h configured in a vertical stripe pattern in place of the identification display area of ​​the first embodiment. The fire hose 1E of the fifth embodiment has the same configuration as the first embodiment except that the identification display areas have a vertical stripe pattern. The fire hose 1E can be produced by weaving a combination of warp threads made of colored yarns that are divided into eight colors and uncolored (white) warp threads that are less expensive than the colored yarns, and therefore can be produced more cheaply than the fire hose 1A of the first embodiment.

[0033] Various explanations have been given regarding the first to sixth embodiments above, but the multiple identifiable areas of the fire hose of the present invention are not limited to the above-mentioned embodiments, and the boundaries of the areas can be configured to be identifiable by patterns such as colors, mesh patterns, vertical stripes, horizontal stripes, etc., or combinations of such patterns and colors.

[0034] Furthermore, the number of identifiable regions in the fire hose of the present invention is not limited to the above embodiment, and any suitable number of identifiable regions may be provided. However, as described above, a commonly used fire hose has a hose body 2 length of 20 to 22 meters, and in this case, if the number of identifiable display regions is 20 or more, the difference between each identifiable display region becomes too large, while if it is 4 or less, the difference between each identifiable display region becomes too small, reducing the identifiability of each identifiable display region and making it difficult to instantly distinguish them, so the number of identifiable display regions is preferably 5 or more and less than 20, and more preferably 5 or more and 10 or less.

[0035] With the fire hose having the above configuration, for example, when firefighting or rescue operations are performed at night in a building filled with smoke and with poor visibility due to the lights being turned off, by shining a hand light on the multiple identification display areas 5a to 5h, it is possible to instantly determine whether the current position is close to or far from the exit, which is an aid in rescue operations at the fire scene.

[0036] Furthermore, if the multiple identification display areas are arranged in colors that gradually change from warm to cool, by following the fire hose, it will be possible to understand that one is gradually approaching the source of the fire, which will help prevent secondary disasters such as being engulfed in flames during rescue operations and contribute to safe rescue operations.

[0037] In addition, it is possible to identify which fire station or fire brigade branch it belongs to by the color scheme or pattern of the multiple identification display areas, so that even if many branches or stations are at the fire scene, the fire hose can be quickly removed.

[0038] 7 shows a fire hose 1F according to a sixth embodiment of the present invention. In the fire hoses of the first to fifth embodiments described above, the identification marking area is constituted by an area dividing the hose body 2 in the length direction, but the fire hose 1F of the sixth embodiment is provided with a plurality of identification marking parts 5a-5h arranged on the hose body 2 so that the intervals between them gradually decrease along the length direction of the hose 2. The identification marking parts 5a-5h in the illustrated example are arranged so that the intervals between them gradually decrease from the male joint 3 side to the female joint 4 side of the two hose bodies.

[0039] The identification marking portions 5a to 5h of the fire hose 1F of the sixth embodiment may also be colored differently from each other, preferably in a manner that gradually changes from warm colors to cool colors clockwise from the male joint 3 side to the female joint 4 side on the color wheel.

[0040] In the illustrated example, the identification display portions 5a to 5h are provided with an arrow-shaped pattern indicating the evacuation direction, but the pattern may be of any shape, such as a young leaf mark shape or a triangle shape indicating directionality, or a circle or square shape that does not indicate directionality.

[0041] The fire hose 1F of the sixth embodiment described above can achieve the same effects as those of the first to fifth embodiments described above by employing the above configuration.

[0042] Fig. 8 shows a fire hose 1G according to a seventh embodiment of the present invention. The fire hose 1G of the seventh embodiment is provided on the hose body 2 with a plurality of identification marks 5a-5h arranged at gradually shorter intervals along the length of the hose 2. While the plurality of identification marks 5a-5h in the sixth embodiment are configured with design patterns, the identification marks 5a-5h in the seventh embodiment shown in Fig. 8 are configured with tubular color patterns extending a predetermined length in the length direction of the hose body 2.

[0043] The identification markings 5a to 5h of the seventh embodiment may be configured in the same color as in the illustrated example, or may be colored in any different colors, or may be colored in different colors that gradually change from warm colors to cool colors in a clockwise direction on the color wheel from the fitting 3 side to the female fitting 4 side.

[0044] In addition, in the illustrated fire hose 1G, the space between adjacent colored identification markings 5a-5h is uncolored, but the identification markings 5a-5h can be made identifiable by coloring the space between the adjacent colored identification markings 5a-5h in a color different from that of the identification markings 5a-5h. The hose body 2 of the illustrated fire hose 1G can be manufactured by using alternating colored yarns as warp threads for forming the identification markings 5a-5h.

[0045] Moreover, the illustrated identification marking portions 5a-5b are configured so that the length in the hose length direction gradually decreases from the coupling 3 side to the female coupling 4 side. Although not shown, it is also possible for each of the identification marking portions 5a-5b to have the same length in the hose length direction. By employing the above configuration, the fire hose 1G of the seventh embodiment can also achieve the same effects as the first to fifth embodiments.

[0046] The present invention should not be construed as being limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the present invention. [Explanation of symbols]

[0047] 1A~1F Fire hose 2 Hose body 3 Male Connector 4 Female fitting 5a~5h Identification display section

Claims

1. A hose body, a male connector attached to one end of the hose body; and a female fitting attached to the other end of the hose body, The hose body includes a plurality of distinguishable identification display areas that are divided so that the length gradually decreases along the longitudinal direction of the hose body and are distinguishable from one another. Fire hose.

2. 2. The fire hose according to claim 1, wherein the plurality of identification marking regions are colored differently from each other so as to gradually change from warm colors to cool colors in a clockwise direction of a color wheel from the male coupling side to the female coupling side.

3. A hose body, a male connector attached to one end of the hose body; and a female fitting attached to the other end of the hose body, The hose body includes a plurality of identification markings arranged at intervals that gradually decrease along the length of the hose body. Fire hose.

4. 4. The fire hose according to claim 3, wherein the plurality of identification markings are colored in different colors that gradually change from warm colors to cool colors in a clockwise direction on a color wheel from the male coupling side to the female coupling side.

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