JP6470240B2 - Fire hose - Google Patents

Description

  The present invention relates to a fire hose that indicates a retreat path when evacuating from a building when entering the building and performing a fire fighting operation.

  In the event of a building fire, not only will water be discharged from the outside of the building, but firefighters will conduct fire extinguishing activities by drawing fire hoses into the building. Fire extinguishing hoses are used as a means of indicating the exit of fire fighters and refugees, such as when the need to evacuate to the outside suddenly occurs during indoor fire extinguishing work, such as following the hose drawn in and evacuating to the outside .

  In the fire hose described in Patent Document 1, an arrow-shaped phosphorescent sheet indicating an evacuation direction is attached to the outer surface of a jacket constituting the outer layer of the hose body. A plurality of luminous sheets are arranged at desired intervals in the longitudinal direction of the hose body.

  Moreover, the fire hose described in Patent Document 2 has a mark or a woven pattern on the surface of the hose body that is shaped to indicate the female fitting side connected to a pump discharge port of a fire engine or the like. In order to improve visibility in the dark, it is disclosed that a mark is formed using a phosphorescent paint or a fluorescent paint as a luminescent paint.

Utility Model Registration No. 3091291 JP 2004-132443 A

  However, in these fire fighting hoses, when a mark indicating a direction is provided on the outer surface of the hose body, the outer surface of the hose body is rubbed and the mark becomes difficult to see by drawing the fire hose. In addition, the fire hose may be bent to the left and right as it is pulled into the building, and the hose body may be rolled or twisted in a direction crossing the longitudinal direction to move the mark to a position where it is difficult to see. If the mark is not found, it takes time to trace the fire hose to find the next mark, and the escape is delayed. Since it is costly to provide a large number of marks over the entire length of the hose body so that the marks can be easily found, the current situation is not so popular.

  Therefore, the present invention provides a fire hose that can be displayed at a position where the retreat direction can be easily found and can be manufactured at low cost.

  A fire hose according to an embodiment of the present invention has a connector attached to both ends of a hose portion in which a synthetic resin liner is formed on the inner surface of a cloth jacket, and is connected to a discharge port of a fire engine pump. Assuming that the hose is a fire hose, it is provided with at least one exit display means. The retreat display means is externally fitted so as to be movable along the hose portion, and indicates a direction toward the discharge port.

  In this case, the retreat display means has an arrow on the outer surface indicating the direction toward the discharge port. Alternatively, the retreat display means has a cylindrical shape and has at least one convex portion at an end portion facing the discharge port. Alternatively, the retreat display means has a pair of convex portions arranged in a cylindrical shape and arranged at a position that is twice rotationally symmetric with respect to the central axis of the cylindrical shape at an end portion toward the discharge port. Yes. These convex portions are preferably corners sharp toward the discharge port.

  Further, the retraction display means has a cylindrical shape, and the inner peripheral length of the cylindrical shape is larger than the outer peripheral length when the internal pressure is not applied to the hose part, and more than the outer peripheral length when the internal pressure is applied to the hose part. Is also preferable. The retreat display means has a seam portion that is removably joined over the entire length along the longitudinal direction of the cylindrical shape. The seam portion has a surface fastener that is overlapped in the circumferential direction.

  The retreat display means may have a cylindrical shape and may include a first convex portion, a second convex portion, a first colored portion, and a second colored portion. At least one first convex portion is disposed at an end portion on the side facing the discharge port. At least one second convex portion is arranged at a position that is shifted in phase with respect to the first convex portion in the circumferential direction around the central axis of the cylinder at the end opposite to the discharge port. . The first colored portion is provided with a constant width in the circumferential direction centering on the first convex portion. The second colored portion is provided with a constant width in the circumferential direction around the second convex portion.

  Further, the retreat display means has a cylindrical shape, and is disposed at the end toward the discharge port in a plane symmetry with respect to the central plane along the central axis of the cylindrical shape and forms an angle toward the discharge port. May have a first edge along the first surface.

  According to the fire hose of one embodiment of the present invention, it has the retreat display means fitted on the hose part, and this retreat display means indicates the direction toward the discharge port of the pump of the fire fighting vehicle. And this retreat display means is externally fitted so as to be movable along the hose part, so that it can be used in the building by moving it to a position where the corridor branches or where multiple fire hoses lie. By doing so, it becomes easy to find a retreat. In addition, since it is only necessary to provide a plurality of retreat display means over the entire length of one fire hose, it can be manufactured at a low cost, and the fire hose indicating retreat can be manufactured. Leads to widespread use.

The top view of the hose for fire fighting of the 1st Embodiment of this invention. The perspective view which shows the condition which uses the hose for fire fighting shown in FIG. The top view of the hose for fire fighting of the 2nd Embodiment of this invention. The top view of the hose for fire fighting of the 3rd Embodiment of this invention. The top view of the hose for fire fighting of the 4th Embodiment of this invention. The perspective view of the retraction display means of the fire hose of the 5th Embodiment of this invention. The perspective view of the retraction display means of the fire hose of the 6th Embodiment of this invention. The perspective view of the retraction display means of the fire hose of the 7th Embodiment of this invention. The perspective view of the retraction display means of the fire hose of the 8th Embodiment of this invention.

  A fire hose 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a plan view of a fire hose 1 having a connector 20 (21, 22) attached to both ends of the hose portion 10 as viewed from above. In FIG. 1, both ends including the connector 20 and a part of the hose portion 10 to which one retraction display means 30 is attached are illustrated. FIG. 2 is a perspective view showing a part of a state in which the fire hose 1 of the present invention is arranged along the approach path of the building when fire extinguishing activities are performed in the building.

  The hose portion 10 of the fire hose 1 shown in FIG. 1 has a structure in which a synthetic resin liner 12 is formed on the inner surface of a cloth jacket 11. In FIG. 1, a male connector 21 (20) is attached to the right end of the hose portion 10, and a female connector 22 (20) is attached to the left end. In the fire hose 1, a female connector 22 is connected to a discharge port of a pump of a fire fighting vehicle, and a female connector 22 of the next fire hose 1 is connected to a male connector 21. In order to obtain a desired length, a plurality of fire hoses 1 are connected, and a water discharge pipe (water discharge nozzle) is attached to the tip.

  The connector 20 of the fire hose 1 shown in FIG. 1 has a mounting portion 20 </ b> A that is inserted into the end portion of the hose portion 10. A protective sleeve 13 that is slightly longer than the mounting portion 20A is mounted on the outer periphery of the end portion of the hose portion 10, and further, the connecting tool 20 is fixed to the end portion of the hose portion 10 by tightening with the crimping ring 14 from the outside. Yes.

  The fire hose 1 has at least one retraction display means 30 in the middle of the hose portion 10. The retreat display means 30 has a cylindrical shape that is externally fitted so as to be movable along the hose portion 10, and indicates a direction toward the discharge port, that is, an escape direction to the outdoors where the fire engine is stopped. In the present embodiment, an arrow 31 indicating the direction in which the female connector 22 is attached, that is, the direction toward the discharge port, is marked on the outer surface of the retreat display means 30.

  The retreat display means 30 is a tubular fabric product knitted with the same members as the protective sleeve 13, that is, warp and weft. Therefore, the retreat display means 30 is attached to the hose portion 10 before fixing the connector 20 to the end portion of the hose portion 10.

  The arrow 31 may have any color as long as it is a conspicuous color with respect to the color of the outer surface of the retreat display means 30. In the present embodiment, the arrow 31 is made of a synthetic resin film in which a reflective material or a phosphorescent material is kneaded, and is affixed to the outer surface of the retreat display means 30. The arrow 31 may be knitted or embroidered as a pattern with a thread of a different color from the fabric of the retreat display means 30, or may be displayed by coloring with a dye. Also, a plurality, preferably 3-5, of arrows 31 are arranged in the circumferential direction of the retreat display means so that the arrows 31 can be seen from any direction.

  According to the fire hose 1 configured as described above, since the retreat display means 30 that can move along the hose portion 10 is provided, when entering the interior of the building to perform fire fighting activities, As shown in FIG. 2, the retreat display means 30 can be moved to a position where it can be easily found, such as the branch T of the passage C or the door D of the evacuation route. Therefore, the fire hose 1 to which the retreat display means 30 is attached serves as a mark for promptly guiding not only the fire brigade members but also the disaster victim R who has delayed to escape from the building. The retreat display means 30 may be provided at a plurality of locations with respect to one fire hose 1. Since a plurality of the exit display means 30 are provided, the exit display means 30 can be easily arranged at a necessary place.

  Further, the fact that the retreat display means 30 is movable along the hose portion 10 can also be turned in the circumferential direction. In other words, even when the hose portion 10 is twisted or rolled during the fire fighting hose 1 or after the fire fighting operation, the escape direction is confirmed by turning the retreat display means 30 relative to the hose portion 10. Can do. Moreover, since it is not necessary to provide a mark over the entire length of the hose portion 10 in order to display the withdrawal path on the fire hose 1, the manufacturing cost of the fire hose 1 can be reduced. In particular, when the retreat display means 30 is made of the same material as the protective sleeve 13, no new equipment is required to manufacture the fire hose 1 having the retreat display means 30.

  The retreat display means 30 has a cylindrical shape, and the inner peripheral length of the cylindrical shape is larger than the outer peripheral length of the hose portion 10 when no internal pressure is applied to the hose portion 10, and the internal pressure is applied to the hose portion 10. It is also preferable that the hose portion 10 is slightly smaller than the outer peripheral length when it is hanging. The fire hose 1 is subjected to a high internal pressure in order to fly water far away by water discharge. The hose part 10 is slightly expanded by this internal pressure. Therefore, by making the retreat display means 30 as described above, the retreat display means 30 can be moved and installed at a desired position before water supply, and when the internal pressure is applied after starting the water discharge, the retreat display means 30 is expanded. Since the retreat display means 30 is tightly fixed to the hose portion 10, it can be prevented that the retreat display means 30 is displaced from the place where the retreat display means 30 is installed.

  Further, if a water-resistant layer made of a synthetic resin similar to the liner 12 is provided on the inner surface of the retraction display means 30 having the above-described structure that is in close contact with the outer surface of the hose portion 10 when water pressure is applied, the hose portion 10 is damaged. By arranging the retreat display means 30 at the portion where the water leaks, it is possible to take an emergency treatment for the water leak location.

  Further, the retreat display means 30 may be made of a material or material having excellent elasticity. For example, a rubber band that is rich in elasticity in the circumferential direction may be formed in a cylindrical shape. If it is made to pass through the connector 20 in the stretched state, it can be added or removed later, and can be replaced when it deteriorates.

  The fire hose of the second to eighth embodiments of the present invention will be described below. The configurations having the same functions as those of the first embodiment are denoted by the same reference numerals in the respective embodiments, and the detailed description thereof refers to the corresponding descriptions in the first embodiment.

  A fire hose 1 according to a second embodiment of the present invention will be described with reference to FIG. In the fire hose 1 shown in FIG. 3, an arrow 32 provided on the retreat display means 30 is opposite to the first embodiment, and the water flow direction of the fire hose 1, that is, the male connector 21. Indicates the direction in which it is attached. Accordingly, the root direction of the arrow 32 indicates the direction toward the discharge port of the fire engine, that is, the escape direction. Thus, the retreat display means 30 of 2nd Embodiment has shown the direction which goes to a discharge outlet by having the arrow 32 which shows a water flow direction.

  A fire hose 1 according to a third embodiment of the present invention will be described with reference to FIG. In the fire hose 1 shown in FIG. 4, the retreat display means 30 has a pictogram 33 indicating an escape route and an emergency exit together with an arrow 31 in order to indicate a direction toward the discharge port. Therefore, anyone can easily understand by looking at the pictograph 33 that the arrow 31 indicates the evacuation direction.

  A fire hose 1 according to a fourth embodiment of the present invention will be described with reference to FIG. The fire hose 1 shown in FIG. 5 is different from the retreat display means 30 of the first to third embodiments in the shape of the retreat display means 30. The retraction display means 30 of the fire hose 1 according to the fourth embodiment has a cylindrical shape that is externally fitted to the hose portion 10 and has at least one convex portion 34 at an end portion facing the discharge port. .

  As shown in FIG. 5, the convex portion 34 has a sharp corner toward the discharge port, and is formed so that the retreat display means 30 has an appearance that generally shows an arrow. The retreat display means 30 also has a convex portion 34 at a portion located on the back side of the paper surface in FIG. Specifically, the convex portions 34 are arranged at a pair of positions that are twice rotationally symmetric with respect to the cylindrical central axis.

  By being configured as described above, even when the hose portion 10 is dragged sideways, it is possible to easily know the direction from the appearance of the retreat display means 30 toward the discharge port, that is, the direction to escape from the building. . In particular, since the shape of the exit display means 30 indicates the direction toward the discharge port, the escape direction can also be determined by touching the exit display means 30 attached to the hose portion 10 even in a situation where visibility is poor. be able to.

  A fire hose 1 according to a fifth embodiment of the present invention will be described with reference to FIG. FIG. 6 is a perspective view showing the retreat display means 30 attached to the fire hose 1 and shows a state where it is attached to the hose portion 10 and a state where it is removed. The retreat display means 30 has a seam portion 35 detachably joined over the entire length along the longitudinal direction of the cylindrical shape. In the case of this embodiment, the seam part 35 has a hook-and-loop fastener 35A and is overlapped and fastened in the circumferential direction.

  Therefore, the retreat display means 30 is wound around an arbitrary position of the hose portion 10 of the fire hose 1. Since it can be freely attached to a required place, it can be attached to an existing fire hose to make it like the fire hose 1 of the present embodiment.

  Moreover, in FIG. 6, the convex part 34 is provided in the edge part of the retreat display means 30 like 4th Embodiment. You may have the arrows 31 and 32 and the pictograph 33 like the 1st-3rd embodiment.

  A fire hose 1 according to a sixth embodiment of the present invention will be described with reference to FIG. FIG. 7 is a perspective view showing the retreat display means 30 attached to the fire hose 1. The retreat display means 30 has a snap button 35 </ b> B in the seam portion 35. Similar to the hook and loop fastener 35A of the fifth embodiment, it is easy to attach and detach, and can be used for an existing fire hose. Fasteners used to stop the seam portion 35 may be slide fasteners or small hooks used as tabi fasteners in addition to the hook-and-loop fasteners 35A and the snap buttons 35B. Moreover, you may make so that it may temporarily stop with a binding band etc.

  A fire hose 1 according to a seventh embodiment of the present invention will be described with reference to FIG. FIG. 8 is a perspective view showing the tubular retraction display means 30 attached to the fire hose 1, and shows the state of the cylinder attached to the hose portion 10 and the state in which this is developed on a plane. . The retreat display means 30 may be formed in a cylindrical shape as in the first to fourth embodiments, or may include a seam portion 35 as in the fifth and sixth embodiments. . The development view in FIG. 8 is a state where the projection is cut in the longitudinal direction at a position passing through the top of the convex portion 34 and developed in a plane.

  The retreat display means 30 has a cylindrical shape, and is arranged at the end on the side toward the discharge portion so as to be symmetrical with respect to the central plane M along the central axis of the cylindrical shape and forms an angle toward the discharge port. It has the 1st edge 36 along a pair of 1st surface S11, S12. As can be seen from the developed retreat display means 30, the first edge is a gentle arc, and corresponds to a half of an ellipse when the cylindrical shape is cut by the first surfaces S11 and S12.

  By being configured as described above, since the valley portion 34A formed between the convex portions 34 is an arc, even if the internal pressure is applied to the hose portion 10 and the retraction display means 30 is stretched in the circumferential direction, the valley It is possible to prevent the portion 34A from being split due to force.

  A fire hose 1 according to an eighth embodiment of the present invention will be described with reference to FIG. FIG. 9 is a perspective view showing the tubular retraction display means 30 attached to the fire hose 1 and shows the state of the cylinder attached to the hose portion 10 and the state in which this is developed on a plane. . The retreat display means 30 may be formed in a cylindrical shape as in the first to fourth and seventh embodiments, and has a seam portion 35 as in the fifth and sixth embodiments. May be. The developed view in FIG. 9 is a state in which it is cut in the longitudinal direction at a position passing through the top of the convex portion 34 and developed in a plane.

  The retraction display means 30 of the eighth embodiment has a cylindrical shape, and has at least one first protrusion 34 disposed at an end on the side facing the discharge port, and a side on the side facing the discharge port. At least one first end is disposed at a position shifted in phase with respect to the first convex portion 34 in the circumferential direction around the center axis of the cylindrical shape, and in the present embodiment at a position shifted in phase by 90 degrees. Two convex portions 37 are provided. In this embodiment, the 1st convex part 34 and the 2nd convex part 37 are each arrange | positioned in a pair in the position used as two-fold rotational symmetry.

  Each trough 34A between the first protrusions 34 and the trough 37A between the second protrusions 37 in the circumferential direction may form discontinuous corners as shown in FIG. It may be formed in a gentle arc like the valley portion 34A of the seventh embodiment.

  Further, the retreat display means 30 of the present embodiment has a first colored portion Q1 having a constant width in the circumferential direction centered on the first convex portion 34 and a circumferential direction centered on the second convex portion 37. A second colored portion Q2 having a constant width. In the present embodiment, as shown in the development view of FIG. 9, there is a boundary between the first colored portion Q1 and the second colored portion Q2 between the first convex portion 34 and the second convex portion 37.

  Thus, since the colors of the first colored portion Q1 and the second colored portion Q2 are different, the first convex portion 34 and the second convex portion 37 can be easily distinguished. That is, the first convex portion 34 is a direction toward the discharge port and indicates an escape direction that is a direction in which the female connector 22 is attached, and the second convex portion 37 is a water flow direction, that is, a male type. The direction in which the coupler 21 is attached is shown.

  Therefore, the first coloring portion Q1 is colored green (blue), for example, so as to easily associate the direction toward the discharge port (water source), that is, the escape direction toward the female connector 22, The coloring portion Q2 is colored, for example, in red so as to easily associate the direction toward the male connector 21, that is, the direction toward the fire source where the fire extinguishing activity is performed. The retreat display means 30 may color the first coloring part Q1 and the second coloring part Q2, and may further include a pictograph 33 as in the third embodiment. By doing in this way, since the escape direction and the fire direction can be indicated by an arrow shape by the first convex portion 34 and the second convex portion 37, respectively, it is easy to visually judge.

  The first coloring portion Q1 and the second coloring portion Q2 may be colored by impregnating a cloth made of a cloth woven in a cylindrical shape with a paint, or may be made by dyeing the cloth. In the case of a twill weave, the warp yarns appearing on the outer surface may be woven in a cylindrical shape by using warp yarns colored in the respective colors.

  In addition, the retreat display means 30 has a first side in the escape direction which is the side from the center toward the female connector 22, that is, the side on which the first convex portion 34 is provided, in the direction along the central axis of the cylinder. The colored portion Q1 may be colored, and the opposite side, that is, the direction toward the male connector 21, that is, the fire direction side where the second convex portion 37 is provided, may be color-coded as the second colored portion Q2. Good. Moreover, in order to make it easy to understand between the 1st coloring part Q1 and the 2nd coloring part Q2, you may provide the boundary part of another color (or base color) from these.

  The fire hose 1 of the present invention has been described above using the first to eighth embodiments. These embodiments are merely examples for facilitating understanding in carrying out the present invention, and are not intended to be limited to these embodiments. Therefore, in implementing the present invention, it is possible to replace the components with those having equivalent functions without departing from the spirit thereof, and these are also included in the present invention. In addition, it is also included in the present invention that some of the configurations described in the embodiments are combined or replaced with each other.

  DESCRIPTION OF SYMBOLS 1 ... Fire hose, 10 ... Hose part, 20 ... Connection tool, 21 ... Male connection tool, 22 ... Female connection tool, 30 ... Retraction display means, 31 ... Arrow (toward discharge port), 32 ... (Showing water flow direction) arrow, 33 ... pictogram, 34 ... convex part (first convex part), 35 ... seam part, 35a ... surface fastener, 36 ... first edge, 37 ... second convex part , M ... center plane, S11, S12 ... first plane, Q1 ... first colored section, Q2 ... second colored section.

Claims (9)

A fire hose is attached to both ends of a hose part formed with a synthetic resin liner on the inner surface of a cloth jacket and connected to the discharge port of a fire engine pump,
Including at least one retraction display means that is externally fitted along the hose portion and indicates a direction toward the discharge port;
The retraction display means has a cylindrical shape, and the inner peripheral length of the cylindrical shape is larger than the outer peripheral length when no internal pressure is applied to the hose portion, and the outer periphery when the internal pressure is applied to the hose portion. Fire hose characterized by being smaller than the length. 2. The fire hose according to claim 1, wherein the retreat display means has an arrow on the outer surface indicating a direction toward the discharge port. 2. The fire hose according to claim 1, wherein the retreat display means has at least one convex portion at an end portion toward the discharge port. The retreat display means has a pair of convex portions arranged at a position that is twice rotationally symmetric with respect to the central axis of the cylindrical shape at an end on the side toward the discharge port. The fire hose according to claim 1. The fire hose according to claim 3 or 4, wherein the convex portion has a sharp corner toward the discharge port. The fire escape hose according to any one of claims 1 to 5, wherein the retreat display means has a seam portion that is detachably joined over the entire length along the longitudinal direction of the cylindrical shape. The fire hose according to claim 6, wherein the seam portion is a hook-and-loop fastener that is overlapped in the circumferential direction of the cylindrical shape. The retraction display means has at least one first convex portion arranged at an end portion on the side facing the discharge port, and an end portion on the side opposite to the discharge port with the cylindrical central axis as a center. At least one second convex portion disposed at a position out of phase with respect to the first convex portion in the circumferential direction, and a first having a constant width in the circumferential direction around the first convex portion. 2. The fire hose according to claim 1, further comprising: a colored portion and a second colored portion having a constant width in a circumferential direction centering on the second convex portion. The retreat display means is disposed at the end toward the discharge port in a plane symmetry with respect to the center plane along the central axis of the cylindrical shape and along a pair of surfaces that form an angle toward the discharge port. The fire hose according to claim 1, further comprising an edge.

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