JP2020039422A - Fire hose - Google Patents

Abstract

To provide a fire hose capable of performing efficient hose management, and preventing damage of an ID tag, when using the hose.SOLUTION: In a fire hose having a hose body 1, and a linkage metal fitting 2 comprising a pair of a male joint 3 and a female joint 4 attached to both ends of the hose body 1 respectively, in which a toric protective band 5 is attached to the outer periphery of the female joint 4, an ID tag 6 for RFID is provided inside the protective band 5.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fire hose, and more particularly, to a fire hose capable of performing efficient hose management and preventing damage to an ID tag when the hose is used.

  Fire hoses deteriorate over time irrespective of whether they are used or not, so a predetermined service life is set. Since the maintenance inspector needs to confirm the date of manufacture printed on the hose, the confirmation work takes time and effort. In addition, the date of manufacture printed on the hose may disappear with the use of the hose. Therefore, it is difficult to efficiently manage the hose based on the printed information.

  On the other hand, in order to perform efficient hose management, a connecting fitting is attached to each end of the hose body, and a fire hose with a tubular hakama on the outer peripheral side of the end of the hose body, There has been proposed an RFID tag in which an ID tag for RFID is arranged in a portion between the skirt and the hakama (for example, see Patent Document 1). According to the fire hose described in Patent Document 1 described above, hose management can be effectively performed using an ID tag. However, when the fire hose is used, the hose body expands and contracts, and there is a problem that the ID tag is damaged by such deformation of the hose body.

Japanese Patent No. 4175471

  An object of the present invention is to provide a fire hose capable of performing efficient hose management and preventing damage to an ID tag when the hose is used.

  A fire hose according to the present invention for achieving the above object has a hose body, and a pair of male and female joints attached to both ends of the hose body, respectively. In a fire hose having an annular protective band attached thereon, an ID tag for RFID is installed inside the protective band.

  In the present invention, a hose body and a pair of male and female joints respectively attached to both ends of the hose body are provided, and an annular protection band is provided on the outer periphery of the female joint. In the fire hose, since an ID tag for RFID is installed inside the protection band, efficient hose management can be performed by a simple operation of simply reading with a reader / writer. In addition, since the protective band has a function of protecting the female joint by closely adhering to the outer periphery of the female joint and having excellent durability even when the hose is used, the ID tag arranged inside the protective band is used. Damage can be prevented.

  In the present invention, the ID tag is preferably a passive tag having no power supply. In the case of the passive tag, the size of the ID tag can be made smaller than that of the active tag having a built-in power supply, so that the durability of the protection band is not excessively reduced. Further, since a power source (battery) is not required, efficient hose management can be performed for a long period of time.

  In the present invention, it is preferable that the ID tag is disposed at a step formed on the inner peripheral surface of the protection band. Thereby, the operation of fixing the ID tag to the protection band becomes easy, and the productivity of the hose can be improved.

  In the present invention, it is preferable that the ID tag is fixed to the step portion while being covered with the resin. By coating the ID tag with a resin, it is possible to add waterproofness to the ID tag and to avoid radio wave interference with a metal component disposed around the ID tag.

  In the present invention, the ID tag is preferably buried inside the protection band. By embedding the ID tag inside the protection band, it is possible to protect the ID tag from water and to avoid radio wave interference with a metal component disposed around the D tag.

It is a front view showing both ends of a fire hose according to an embodiment of the present invention. It is a front view which shows the connection fitting of the fire hose which consists of embodiment of this invention as a partial cross section. It is a perspective view showing an example of a protection band of a fire hose consisting of an embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating a part of the protection band illustrated in FIG. 2. It is sectional drawing which shows the modification of the protection band of the fire hose which consists of embodiment of this invention.

  Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows a fire hose according to an embodiment of the present invention. FIG. 2 shows a connection fitting of a fire hose according to an embodiment of the present invention. 3 and 4 show a protective band of a fire hose according to an embodiment of the present invention. FIG. 1 shows the fire hose of the present embodiment with an intermediate portion in the longitudinal direction of the hose body omitted.

  As shown in FIGS. 1 and 2, in a fire hose 10 according to the present embodiment, plug-in connection fittings 2 are attached to both ends of a hose body 1. The connection fitting 2 includes a pair of metal male and female joints 3 and 4. Each of the male joint 3 and the female joint 4 includes a plurality of components. The male joint 3 and the female joint 4 are provided with stepped hose mounting portions 3a and 4a, respectively, and both ends of the hose body 1 are externally inserted into the hose mounting portions 3a and 4a, respectively. As a method of fixing the hose body 1 to the hose mounting portions 3a, 4a, for example, a method of continuously winding a wire around the outside of the hose body 1, a method of crimping from outside with a metal ring, and a method of inside the hose body 1 A method of inserting a metal ring into the metal ring and mechanically expanding the metal ring can be used as appropriate.

  By inserting the male joint 3 of one fire hose into the female joint 4 of the other fire hose, the tip 3b of the male joint 3 and the claw 4b of the female joint 4 are fitted, and one fire hose and the other fire hose are connected. A hose can be connected. At this time, the rubber packing 4c of the female joint 4 presses the outer peripheral surface of the male joint 3 so that the airtightness at the connecting portion between the male joint 3 and the female joint 4 is ensured. By repeating such a connection operation, a plurality of fire hoses can be used as one continuous hose. On the other hand, in a state where the male joint 3 and the female joint 4 are connected, the pressing ring 3c pushes the claw 4b of the female joint 4 by sliding the pressing ring 3c toward the distal end portion 3b of the male joint 3. By pulling out the male joint 3, the connection between the male joint 3 and the female joint 4 can be released. As described above, the fire hose 10 can be easily connected and released.

  In the fire hose, an annular protective band 5 is provided on the outer periphery of the female joint 4. The protection band 5 is a rubber member for protecting the female joint 4 and has excellent durability when the hose is used. Inside the protective band 5, an RFID ID tag 6 to which information (data) of a hose can be input is attached. By arranging the ID tag 6 inside the protection band 5, it is possible to protect the ID tag 6 from directly contacting an external obstacle.

  In the present invention, RFID (Radio Frequency-Identification) refers to a reader / writer having an antenna and a controller, an IC chip for storing data, and an antenna for transmitting and receiving data without contact on a circuit board. This is an automatic recognition technology that consists of an ID tag and can communicate data by wireless. The RFID ID tag includes an active tag in which the tag itself has a built-in power supply and emits a radio wave by itself, and an RFID tag which does not have a built-in power supply and injects an electromagnetic wave when the reader / writer approaches to fly the radio wave. There is a passive type tag as described above. As the ID tag 6 used in the present invention, either an active tag or a passive tag can be appropriately used.

  Since the ID tag 6 is arranged inside the annular protection band 5, the ID tag 6 may be covered with not a hard material but a soft material having excellent flexibility so as to follow the shape of the protection band 5. preferable. Specifically, paper, synthetic resin, and synthetic rubber can be used as a material for covering the ID tag 6. Examples of the synthetic resin include polyethylene terephthalate (PET) and polypropylene (PP), and examples of the synthetic rubber include urethane rubber and silicone rubber.

  Examples of hose information to be input to the ID tag 6 include a hose product name, a diameter, a working pressure, a report number, a manufacturing date, a purchase date, an affiliated fire department, and a loaded fire truck number.

  As shown in FIGS. 3 and 4, a step 50 serving as a recess is formed on the inner peripheral surface 5 a of the protection band 5, and the ID tag 6 is arranged in the step 50. 3 and 4, the step portion 50 has a shape curved along the circumferential direction of the protection band 5. In order to prevent the durability of the protection band 5 from being excessively reduced, the step portion 50 has a circumferential length on the inner circumferential surface 5a of 1/9 to 1/3 with respect to the dimension of the protection band 5 and a width ( The length of the protection band 5 in the axial direction is preferably set to 1/6 to 1/2, and the depth of the protection band 5 is set to 1/5 to 1/2. Further, it is desirable that the ID tag 6 is disposed at a distance of at least 2 mm from the outer peripheral surface of the female joint 4 in order to prevent radio wave interference with the metal part of the female joint 4. The ID tag 6 is covered with a resin 7 on all side surfaces. In this case, high waterproofness can be added to the ID tag 6.

  In addition, the protective band 5 having the step portion 50 is formed by molding using a mold having a convex portion corresponding to the step portion 50, or removing a part of the inner peripheral surface 5a after manufacturing the protective band 5. Can be obtained by The ID tag 6 may be fixed to the protection band 5 via an adhesive, or may be fixed to the protection band 5 by vulcanization. Further, the ID tag 6 may be covered with the resin 7 and formed into a shape equivalent to that of the step 50, and may be fitted to the step 50 and arranged. In this case, since it is not necessary to use an adhesive, productivity can be improved. In any case described above, the inner peripheral surface 5a of the protection band 5 on which the ID tag 6 is arranged is formed smoothly.

  The fire hose described above has a hose body 1 and a pair of male fittings 3 and female fittings 4 attached to both ends of the hose body 1 respectively. In the fire hose to which the protection band 5 is attached, since the ID tag 6 for RFID is installed inside the protection band 5, efficient hose management can be performed by a simple operation only by reading with a reader / writer. Can be. The protective band 5 has a function of protecting the female joint 4 by closely adhering to the outer periphery of the female joint 4 and has excellent durability even when the hose is used. Damage to the ID tag 6 can be prevented.

  In addition, pump trucks from multiple fire departments often gather at large fire sites, and when performing fire fighting work, hoses from other fire departments may be used in combination with hoses. May be confused. On the other hand, if the fire hose according to the present invention is used, information on the hose can be read accurately and quickly even when a large number of hoses are present at the same time as described above. It can be effectively prevented.

  In the above fire hose, the ID tag 6 is preferably a passive tag having no power supply. In the case of a passive tag, since the ID tag 6 can be smaller in size than an active tag because it does not have a power supply, the durability of the protection band 5 is not excessively reduced. Further, since a power source (battery) is not required, efficient hose management can be performed for a long period of time.

  Further, the ID tag 6 is preferably disposed on a step 50 formed on the inner peripheral surface 5 a of the protection band 5. By arranging the ID tag 6 in the step 50 in this manner, the operation of fixing the ID tag 6 to the protection band 5 becomes easy, and the productivity of the hose can be improved.

  Further, the ID tag 6 is preferably fixed to the step 50 while being covered with the resin 7. By coating the ID tag 6 with the resin 7, waterproofness can be added to the ID tag 6, and electric wave interference with a metal component disposed around the ID tag 6 can be avoided.

  FIG. 5 shows a modification of the protection band of the fire hose according to the embodiment of the present invention. As shown in FIG. 5, the ID tag 6 is buried inside the protection band 5. That is, the ID tag 6 is disposed apart from the inner peripheral surface 5a and the outer peripheral surface 5b of the protection band 5. In particular, in order to sufficiently secure the durability of the protection band 5, the ID tag 6 is preferably arranged at a substantially central portion in the radial direction of the protection band 5. The above-described protection band 5 can be obtained by embedding the ID tag 6 in an unvulcanized rubber material for the protection band 5 and then vulcanizing the unvulcanized rubber material. In this case, since the temperature becomes high when the unvulcanized rubber material for the protection band 5 is vulcanized, the ID tag 6 embedded therein is made of a material having excellent heat resistance and flexibility.

  In the above-mentioned fire hose, since the ID tag 6 is buried inside the protection band 5, the ID tag 6 can be protected from water, and the radio wave between the ID tag 6 and the metal parts disposed around the ID tag 6 can be protected. Interference can be avoided.

  3 and 4 show an example in which the step portion 50 has a shape that is curved along the circumferential direction of the protection band 5, but the present invention is not limited to this. Any size or shape that can accommodate the can be used as appropriate.

  Further, in the embodiment of FIG. 4, an example is shown in which all the side surfaces of the ID tag 6 are covered with the resin 7, but the present invention is not limited to this, and at least the radially inner side surface ( It is sufficient that the side surface 6a) of FIG. For example, when only the radially inner side surface of the ID tag 6 is covered with the resin 7, the number of side surfaces covered with the resin 7 can be reduced, so that productivity can be improved. In addition, as in the case of FIG. 4, waterproofness can be added to the ID tag 6, and radio wave interference with a metal component disposed around the ID tag 6 can be avoided.

DESCRIPTION OF SYMBOLS 1 Hose main body 2 Connection fitting 3 Male joint 4 Female joint 5 Protective band 6 ID tag 10 Fire hose

Claims (5)

  A fire hose having a hose body and a pair of male joints and female joints attached to both ends of the hose body, and having an annular protective band attached on the outer periphery of the female joint. A fire hose, wherein an ID tag for RFID is installed inside the protection band.   The fire hose according to claim 1, wherein the ID tag is a passive tag having no power supply.   The fire hose according to claim 1, wherein the ID tag is disposed at a step formed on an inner peripheral surface of the protection band.   The fire hose according to claim 3, wherein the ID tag is fixed to the step portion while being covered with a resin.   The fire hose according to claim 1, wherein the ID tag is embedded inside the protection band.

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