JP7326136B2 - Jacket manufacturing device, jacket manufacturing method and hose manufacturing method - Google Patents

Description

The present invention relates to a jacket manufacturing apparatus for manufacturing a hose jacket, a jacket manufacturing method for manufacturing the jacket, and a hose manufacturing method.

For example, a hose such as a fire hose includes a jacket, which is a reinforcing layer, and a lining layer (lining) that covers the inner surface of the jacket. The jacket is woven with a plurality of warp and weft threads.

Patterns such as characters or graphics are sometimes formed on the outer surface of the jacket in colors different from the background colors of the warp and weft threads (see Patent Documents 1 and 2, for example). In addition, the entire jacket may be colored with paint. In general, such patterns are formed and colored by spraying paint on the outer surface of the jacket, screen-printing the outer surface, or attaching a pattern to the outer surface after providing the lining layer on the inner surface of the jacket. , by immersing the jacket in paint, etc.

JP 2009-150522 A Japanese Patent Application Laid-Open No. 2002-139182

Forming a pattern or coloring the outer surface of the jacket in the manner described above naturally increases the number of manufacturing steps of the hose. That is, it is necessary to cut a jacket woven by a loom, form a lining layer on the cut jacket, and then transport the jacket to a specific workshop for pattern formation and coloring.

In addition, particularly in fire hoses, jackets are easily damaged because they are used in harsh environments. As a result, the pattern may be damaged and difficult to see, or peel off.

An object of one aspect of the present invention is to provide a jacket manufacturing apparatus, a jacket manufacturing method, and a hose manufacturing method capable of increasing the efficiency of hose manufacturing.

A jacket manufacturing apparatus according to one embodiment includes a loom that weaves a jacket of a hose with a plurality of warp and weft yarns that are sequentially supplied, and an outer surface of the jacket that is connected to the warp before weaving by the loom. and a coloring device for applying paint.

The coloring device may form a pattern on the outer surface of the jacket with the paint. Further, the jacket connected to the warp yarns before weaving is continuously conveyed along a route passing through a working position where coloring is performed by the coloring device, and the coloring device passes the working position during conveyance. The paint may adhere to the jacket.

The jacket manufacturing apparatus may further include a drying device that dries the coating adhering to the jacket connected to the warp yarns before weaving.

A jacket manufacturing apparatus according to another embodiment includes a loom that weaves a jacket of a hose with a plurality of warp and weft yarns that are sequentially supplied, and a coloring device that applies paint to the warp yarns connected to the jacket before weaving. and have.

The coloring device may form a pattern on the outer surface of the jacket woven using the warp threads by applying the paint to a plurality of the warp threads. At least one of the plurality of warp yarns before weaving connected to the jacket is continuously conveyed along a route passing through a working position where coloring is performed by the coloring device, and the coloring device passes the working position. The paint may be applied to the warp yarns being transported.

The jacket manufacturing apparatus may further include a drying device for drying the paint adhering to the warp yarns connected to the jacket before weaving.

The coloring device may further include a nozzle for discharging the paint, and a facing member facing the nozzle. In this case, the plurality of warp yarns connected to the jacket before weaving are conveyed between the nozzle and the facing member, and the coating material discharged from the nozzle and passing through the gaps between the warp yarns is applied to the facing member. may be received by

The coloring device may apply the paint to all warp threads connected to the jacket.

A jacket manufacturing method according to one embodiment includes a weaving step of weaving a jacket of a hose with a plurality of warp yarns and weft yarns, and a coloring step of applying paint to the outer surface of the jacket connected to the warp yarns before weaving. and

A jacket manufacturing method according to another embodiment includes a weaving step of weaving a hose jacket with a plurality of warp yarns and weft yarns, a coloring step of applying a paint to the warp yarns connected to the jacket before weaving, including.

A hose manufacturing method according to one embodiment includes the weaving step, the coloring step, the cutting step of cutting the jacket to which the paint is adhered, and the lining forming step of forming a lining layer on the inner surface of the cut jacket. and

ADVANTAGE OF THE INVENTION According to this invention, the jacket manufacturing apparatus, jacket manufacturing method, and hose manufacturing method which can raise the manufacturing efficiency of a hose can be provided.

Further, by manufacturing jackets and hoses using these jacket-manufacturing apparatus, jacket-manufacturing method, and hose-manufacturing method, hoses having colored portions with excellent visibility and durability can be obtained.

FIG. 1 is a schematic perspective view showing the vicinity of the end of the fire hose according to the first embodiment. FIG. 2 is a schematic plan view showing the midsection of the fire hose according to the first embodiment. FIG. 3 is a flow chart showing an overview of the fire hose manufacturing method according to the first embodiment. FIG. 4 is a schematic perspective view of the jacket manufacturing apparatus according to the first embodiment. FIG. 5 is a schematic cross-sectional view of the jacket manufacturing apparatus according to the first embodiment. FIG. 6 is a front view showing an enlarged warp yarn supply device and weft yarn supply device provided in the circular loom. FIG. 7 is a schematic plan view showing a state in which the lining layer is inserted into the jacket. FIG. 8 is a flow chart showing an outline of a fire hose manufacturing method according to the second embodiment. FIG. 9 is a schematic perspective view of a jacket manufacturing apparatus according to the second embodiment. FIG. 10 is a schematic cross-sectional view of a fire hose manufactured by the manufacturing method according to the second embodiment. FIG. 11 is a schematic cross-sectional view of a fire hose according to a comparative example. FIG. 12 is a schematic top view of the jacket manufacturing apparatus according to the third embodiment. FIG. 13 is a diagram showing a schematic configuration of a coloring device according to the fourth embodiment.

Several embodiments will be described below with reference to the drawings. Each embodiment exemplifies a jacket manufacturing apparatus and a jacket manufacturing method for manufacturing a jacket for a fire hose, and a hose manufacturing method. However, the configurations of the jacket manufacturing apparatus, jacket manufacturing method, and hose manufacturing method disclosed in each embodiment can also be applied to various types of hoses, such as industrial hoses and agricultural hoses, and jacket manufacturing apparatuses and manufacturing methods thereof. .

[First embodiment]
FIG. 1 is a schematic perspective view showing the vicinity of the end of a fire hose 1 according to the first embodiment. FIG. 2 is a schematic plan view showing the midsection of the fire hose 1. FIG. As shown in FIG. 1, a fire hose 1 includes a cylindrical jacket 2 and a lining layer 3 covering the inner surface of the jacket 2. As shown in FIG. The lining layer 3 is made of, for example, a resin material such as rubber or synthetic resin, and has liquid tightness.

The jacket 2 is woven with a plurality of warp threads M and weft threads L. As shown in FIG. Plain weave and twill weave are known as weaving modes, but any method may be used in the present embodiment. Although the weft thread L is shown on the outer surface of the jacket 2 in FIG. 1 for convenience of explanation, the weft thread L may not be exposed on the outer surface. The warp M extends in the length direction of the fire hose 1 (jacket 2). The weft thread L extends in the circumferential direction of the fire hose 1 (jacket 2).

The weft yarn L is, for example, a filament yarn (long fiber yarn) composed of a plurality of long fibers. Since the filament yarn is excellent in strength, the fire hose 1 and the jacket 2 excellent in pressure resistance can be obtained. The warp yarn M is, for example, a spun yarn (short fiber yarn) composed of a plurality of short fibers. By using the spun yarn, it is possible to obtain the fire hose 1 and the jacket 2 which are non-slip and easy to handle.

The fire hose 1 has flexibility so that it can be flattened or expanded into a cylindrical shape as shown in the figure. The fire hose 1 has a pair of ear portions 10a and 10b that bend in a flattened state, and a pair of abdomens 11a and 11b between the ear portions 10a and 10b. Each ear portion 10a, 10b has a higher strength by making the density of the thread material (for example, the warp M) higher than the density of the thread material of the abdomens 11a, 11b, and is given a crease. Therefore, when the fire hose 1 is not subjected to internal pressure, the ears 10a and 10b are actively bent and the abdomens 11a and 11b are flattened.

As shown in FIGS. 1 and 2, boundary lines 21 are provided on the outer surface of jacket 2 along approximate boundaries between ears 10a, 10b and abdomens 11a, 11b. The boundary line 21 is composed of warp yarns M colored in a different color (for example, green) from the ground color (for example, white) of the warp yarns M forming most of the outer surface of the jacket 2 . 1 and 2 show two boundary lines 21 on the abdomen 11a side, two boundary lines 21 are similarly provided on the abdomen 11b. The warp yarns M forming each boundary line 21 have the same color from one end of the fire hose 1 to the other end.

As shown in FIG. 2, the abdomen 11a of the fire hose 1 is provided with a plurality of patterns 22, which are examples of colored portions. The pattern 22 is formed with paint of a color different from the base color of the warp M (for example, white). Here, as an example of each pattern 22, an arrow shape pointing in the same direction is shown. As an example, the arrangement pitch of the patterns 22 in the length direction of the fire hose 1 is about 30 cm. In fire fighting, if the fire hose 1 is used so that these patterns 22 point toward the water source, the hose can indicate an evacuation route. A similar pattern 22 may be formed on the abdomen 11b.

Note that the colored portion is not limited to such a pattern 22, and may be, for example, other figures or characters that can serve as identification marks such as the owner or storage location of the fire hose 1, or the length of the fire hose 1 It may be one or more lines that are continuous in the direction. Moreover, the pattern 22 and the colored portion of another aspect may be formed of a paint having excellent light reflectivity or a paint having luminous properties. The color of the paint that forms the pattern 22 or the colored portion of another aspect is not limited to one color, and may be two or more colors.

Next, a method for manufacturing the fire hose 1 will be described.
FIG. 3 is a flow chart showing an overview of the method for manufacturing the fire hose 1 according to this embodiment. In this embodiment, first, the jacket 2 is woven (P11: weaving step), and the outer surface of the jacket 2 is coated with paint to form a colored portion such as the pattern 22 (P12: coloring step). The paint adhering to the jacket 2 may be dried by a drying device (P13: drying step). Of the jacket 2 continuously discharged from the loom, the portion where the colored portion such as the pattern 22 is formed is cut to a predetermined length (P14: cutting step), and this is used for one fire hose 1. Jacket 2 is completed.

After that, the lining layer 3 is formed inside the jacket 2 (P15: lining forming step), and the fire hose 1 is completed. The lining layer 3 is attached, for example, to the inner surface of the jacket 2 with an adhesive. As another example, the inner and outer surfaces of the jacket 2 are turned inside out, and in this state, the lining layer 3 is formed by applying resin to the surface of the jacket 2 exposed to the outside, and then the inner and outer surfaces of the jacket 2 are put back together. can be changed back to

FIG. 4 is a schematic perspective view of the jacket manufacturing apparatus 4 used in the weaving process and the coloring process in this embodiment. The jacket manufacturing apparatus 4 includes a circular loom 5 for weaving the jacket 2 from the warp M and the weft L, a creel 6 for supplying the warp M to the circular loom 5, and coating on the outer surface of the jacket 2. and a coloring device 100 .

In the example of FIG. 4, the circular loom 5 and the coloring device 100 are arranged on the upper floor of the building, and the creel 6 is arranged on the lower floor below the floor F of the upper floor. However, the arrangement of the circular loom 5, the creel 6 and the coloring device 100 is not limited to this example.

The creel 6 includes a plurality (eg, several tens to several hundreds) of spools 6A. A warp thread M is wound on each spool 6A. The warp threads M are sent upstairs through an opening provided in the floor F. The plurality of spools 6A also include warp yarns M corresponding to the boundary lines 21 described above.

FIG. 5 is a schematic cross-sectional view of the jacket manufacturing apparatus 4. As shown in FIG. As shown in FIG. 5, the circular loom 5 includes a loom main body 50, a cone 51, a warp supply device (warping device) 70, and a weft supply device (weft insertion device, throwing device) 80. . The warp yarn supply device 70 warps the warp yarns M radially around the cone 51 . The weft yarn supply device 80 spirally weaves the weft yarn L into the warp yarn M radially warped.

The loom main body 50 includes a base 52 , a rotating disk 53 rotatably supported on the supporting frame 52 , and a motor 54 for driving the rotating disk 53 . The pedestal 52 includes a disk-shaped bottom plate 55 , a cylindrical drum 56 protruding upward from the center of the bottom plate 55 , and a plurality of frames 57 arranged along the periphery of the bottom plate 55 at regular intervals. Cone 51 is attached to upper end 56 A of drum 56 .

The cone 51 is formed in a tapered cylindrical shape and has openings 51A and 51B at the distal end and the proximal end, respectively. The annular loom 5 can weave jackets 2 of various diameters by changing the diameter of the opening 51A by replacing the cone 51. FIG. The rotating disk 53 is supported by the drum 56 via bearings provided on the outer peripheral surface of the drum 56 . The motor 54 is housed in a space surrounded by, for example, a rotating disk 53, a bottom plate 55, a drum 56 and a frame 57.

The warp yarn supply device 70 comprises a plurality of warping rollers 71 and an annular lead (reed) 72 . As shown in FIG. 4 , a plurality of warping rollers 71 (for example, 12) are provided outside the side peripheral surface of the annular loom 5 , that is, outside the frame 57 . Each warping roller 71 is arranged in the circumferential direction of the circular loom 5 with the ends facing each other with the adjacent warping rollers 71 . A plurality of warp rollers 71 warp a plurality of warp yarns M supplied from the creel 6 radially around the cone 51 .

As shown in FIG. 5, the annular lead 72 is arranged between the warp roller 71 and the cone 51 in the conveying path of the warp M and fixed to the frame 57 . The annular lead 72 includes a lower ring 73 fixed to the frame 57 , an upper ring 74 facing the lower ring 73 , a plurality of pins 75 extending vertically between the lower ring 73 and the upper ring 74 , and a track ring 76 provided.

FIG. 6 is a front view showing the warp yarn supply device 70 and the weft yarn supply device 80 in an enlarged manner. As shown in FIG. 6, the plurality of pins 75 are arranged at regular intervals in the circumferential direction of the annular lead 72 . The warp yarns M warped by the warping rollers 71 are passed through the gaps between the adjacent pins 75 . The warp M can move vertically between the lower ring 73 and the upper ring 74 , while the pin 75 restricts the circumferential movement of the annular lead 72 .

The weft thread supply device 80 includes a shuttle 81 and a shedding wheel (helical gear, shedding device) 82 . In the example shown in FIG. 5, the weft thread supply device 80 comprises two sets of shuttles 81 and shedding wheels 82 . The number of the shuttle 81 and the shedding wheel 82 may be one, or three or more. The two sets of shuttles 81 and shedding wheels 82 are arranged point-symmetrically about the cone 51 .

Each shuttle 81 is arranged between the rotating disk 53 of the loom body 50 and the track ring 76 of the annular lead 72 and faces the pin 75 of the annular lead 72 . As shown in FIG. 6, the shuttle 81 is connected to a spindle-shaped shuttle body 83, a bobbin (small tube) 84 built in the shuttle body 83, and an end 83A side and the other end side 83B of the shuttle body 83, respectively. and a pair of rods 85 connected to each other.

A weft thread L is wound around the bobbin 84 . The tip of each rod 85 is in sliding contact with the drum 56 of the loom main body 50 . The shuttle 81 is restricted from moving radially of the annular lead 72 by the rod 85 and the pin 75 and is restricted from moving vertically by the track ring 76 and the rotating disk 53 . In the vicinity of the end portion 83B of the shuttle body 83, a pressing roller (protruding portion) 58 provided on the rotating disk 53 is arranged.

The shedding wheel 82 is arranged near the end portion 83A of the shuttle body 83 and is rotatably supported by a shaft 59 projecting obliquely downward from the outer peripheral surface of the rotating disk 53 . The shedding wheel 82 has a tooth top portion 82A that meshes with the pin 75 of the annular lead 72, and a tooth bottom portion 82B between the adjacent tooth top portions 82A.

When the rotating disk 53 is rotationally driven by the motor 54 , the shuttle 81 and the shedding wheel 82 revolve around the cone 51 . Further, the shedding wheel 82 meshing with the annular lead 72 rotates (rotates) around the shaft 59 .

The shedding wheel 82 sheds (heddles) the warp yarn M on the tooth tip portion 82A and the warp yarn M that has fallen on the tooth bottom portion 82B. The shuttle 81 weaves the weft thread L between the warp threads M by passing through the openings of the warp threads M.

Circular loom 5 has rollers 91 to 96 shown in FIG. 5 as elements for conveying jacket 2 woven with warp M and weft L. Rollers 91 and 92 are arranged below cone 51 . The rollers 93 to 96 are arranged downstream of the rollers 91 and 92 in the transport direction of the jacket 2 .

The jacket 2 passes through the nip of rollers 91 and 92, the nip of rollers 93 and 95, the nip of rollers 93 and 94, and the nip of rollers 95 and 96 in this order. For example, one of the rollers forming each nip is a drive roller driven to rotate by a motor, and the other is a driven roller. The jacket 2 is formed into a flat shape by passing through each nip.

After leaving the nip of the rollers 95 and 96, the jacket 2 is conveyed to the lower floor through a conveying opening OP provided on the floor F. A frame-shaped wall member W protrudes from the floor F around the transport opening OP. Rollers or the like for transporting the jacket 2 may also be provided on the lower floor. Alternatively, the jacket 2 may be transported to the lower floor through the transport port OP by its own weight. Between the nip of the rollers 95, 96 and the wall member W, the jacket 2 is under tension. As a result, between the nip and the wall member W, the jacket 2 hardly bends.

The jacket 2 passing through the transport opening OP is connected to the warp M and the weft L before weaving by the circular loom 5 . The cutting process described above is performed, for example, on the lower floor. In the cutting step, of the jacket 2 woven by the circular loom 5 and connected to the warp M and the weft L before weaving, the portion where the colored portion such as the pattern 22 is formed by the coloring device 100 is cut off. .

The coloring device 100 includes a head 110 , a controller 120 and a facing member 130 . The head 110 applies paint to the outer surface of the jacket 2 at the working position P to form a colored portion such as the pattern 22 described above. The working position P in this embodiment is between the nip of the rollers 95 and 96 and the wall member W. As shown in FIG. The jacket 2 is continuously transported along a route including the work position P.

The structure of the head 110 is not particularly limited as long as it can form a colored portion. As an example, the head 110 is an ink jet printer and has a plurality of nozzles 111 facing the abdomen of the flat jacket 2 under tension at the working position P. FIG. A plurality of nozzles 111 eject paint (ink) onto the outer surface of the jacket 2 being transported. The plurality of nozzles 111 may be arranged in a row in the width direction of the jacket 2, or may be arranged in a matrix. Nozzle 111 may be a spray nozzle for spraying paint.

The plurality of nozzles 111 may all eject paint of the same color. As another example, the plurality of nozzles 111 may include nozzles that eject different colors of paint. In this case, it is possible to form a multicolor colored portion.

The opposing member 130 faces the head 110 via the jacket 2 at the working position P. As shown in FIG. For example, the facing member 130 is a box-shaped member that receives paint discharged from the head 110 and not adhering to the jacket 2 . The opposing member 130 may be a plate or roller that supports the back surface of the jacket 2 at the working position P.

The controller 120 controls the head 110 to selectively eject paint from the nozzles 111 . For example, the controller 120 may cause the nozzles 111 to periodically eject paint at predetermined timings to form patterns 22 arranged at regular intervals as shown in FIG.

The controller 120 may also calculate the driving timing of the head 110 based on the control parameters of the circular loom 5 . Control parameters include, for example, the supply speed of the warp yarns M toward the cone 51, the number of revolutions of the motor 54, the conveying speed of the woven jacket 2, and the like. Based on these control parameters, it is possible to calculate the feeding amount of the jacket 2 after forming the previous pattern 22, and based on this feeding amount, it is possible to determine the formation timing of the next pattern 22. .

To give a specific example, when the conveying speed of the jacket 2 is 50 cm per minute and the interval between the patterns 22 to be formed is 30 cm, the controller 120 drives to form the patterns 22 at a cycle of 36 seconds. repeat.

For example, when the colored portion to be formed on the outer surface of the jacket 2 is a continuous line in the longitudinal direction of the jacket 2 , the controller 120 may cause the paint to be continuously discharged from the specific nozzles 111 .

The jacket manufacturing apparatus 4 may further include a drying device 140 that performs the drying process described above. In the example of FIG. 5, a drying device 140 is arranged on the lower floor. For example, the drying device 140 dries the paint by applying hot air to the outer surface (abdomen) of the jacket 2 to which the paint is adhered. Note that the drying process described above may be natural drying without using the drying device 140 .

In the lining forming step, the lining layer 3 is inserted into the jacket 2 and adhered to the inner surface of the jacket 2 with an adhesive, for example. FIG. 7 is a schematic plan view of the fire hose 1 after forming the lining layer 3 on the jacket 2. FIG.

Each of the selvages 10a and 10b has a region A (hatched portion) in which the density of the warp yarns M differs from that of the other regions. For example, the density of warp yarns M in each region A is higher than the density of warp yarns M in other regions. Each region A extends continuously in the longitudinal direction of the jacket 2 between the cut ends of the jacket 2 . One region A is positioned between two boundary lines 21 provided on the boundary of the ear portion 10a, and the other region A is positioned between the two boundary lines 21 provided on the boundary of the ear portion 10b. are doing.

By applying paint to each area A using the coloring device 100, the pattern 25 such as characters and graphics and other colored portions can be formed in each area A. FIG. The pattern 25 may be intermittently provided in the length direction of the jacket 2 or may be provided continuously. Alternatively, the entire region A may be colored with a specific color.

In the jacket manufacturing apparatus 4 and the hose manufacturing method according to the present embodiment described above, paint is applied to the outer surface of the jacket 2 before cutting, that is, the outer surface of the jacket 2 connected to the warp M and weft L before weaving. As a result, a colored portion such as a pattern is formed on the outer surface.

If a colored portion is to be formed on the cut jacket 2, it is necessary to transport the jacket 2 to a specific workshop and perform the coloring work. In this case, the coloring work is performed at a different timing from the weaving, so that the number of steps for manufacturing the fire hose 1 to the jacket 2 is increased, and it is necessary to secure a work area for coloring within the factory. On the other hand, in the present embodiment, the weaving process and the coloring process can be performed in parallel, and the manufacturing efficiency of the fire hose 1 or jacket 2 can be improved. Furthermore, the workshop for coloring can also be omitted.

Further, as shown in FIG. 5, the jacket 2 is stretched between the rollers 95, 96 and the transport opening OP. can be enhanced. Also, the operator of the jacket manufacturing apparatus 4 can confirm the operating states of both the circular loom 5 and the coloring apparatus 100 on the upper floor.
In addition, various favorable effects can be obtained from this embodiment.

[Second embodiment]
A second embodiment will be described. Configurations and effects that are not particularly mentioned are the same as those of the first embodiment.

FIG. 8 is a flow chart showing an overview of the method for manufacturing the fire hose 1 according to this embodiment. In this embodiment, first, paint is applied to the warp M (P21: coloring step). The paint adhering to the warp M may be dried by a drying device (P22: drying step). After that, the warp M is used to weave the jacket 2 (P23: weaving step). At this time, a colored portion such as the pattern 22 is formed by the portion colored in the coloring process.

Next, the colored portion of the jacket continuously discharged from the loom is cut to a predetermined length (P24: cutting step), and the lining layer 3 is formed inside the jacket 2 (P25: lining forming step), and the fire hose 1 is completed.

FIG. 9 is a schematic perspective view of the jacket manufacturing apparatus 4 used in the weaving process and the coloring process in this embodiment. The jacket manufacturing device 4 includes a circular loom 5, a creel 6, and a coloring device 100, as in the first embodiment.

In this embodiment, the head 110 and the facing member 130 of the coloring device 100 face the side peripheral surface of the circular loom 5 . The head 110 is positioned between the warp roller 71 and the floor F in the height direction of the circular loom 5 .

At least one of all the warp threads M sent to the cone 51 passes between the head 110 and the opposing member 130 . In the example of FIG. 9, a plurality of warp threads M warped by warping rollers 71 positioned directly above the head 110 are passed between the head 110 and the opposing member 130 .

That is, in the present embodiment, the warp yarn M before weaving connected to the jacket 2 woven by the circular loom 5 is continuously conveyed along a route passing through the working position P where coloring is performed by the coloring device 100. be. The coloring device 100 applies paint to the warp yarn M that is being conveyed through the work position P. FIG.

The jacket manufacturing apparatus 4 may further include a drying device 140 that performs the drying process described above. In the example of FIG. 9, a drying device 140 is arranged above the head 110 . For example, the drying device 140 dries the paint by applying hot air to the warp M to which the paint is adhered. Note that the drying process described above may be natural drying without using the drying device 140 .

Although not shown in FIG. 9, the coloring apparatus 100 includes a controller 120 as in the first embodiment. Further, the head 110 is, for example, an inkjet printer with multiple nozzles 111 .

In the present embodiment, the controller 120 may cause the nozzles 111 to periodically eject paint at predetermined timings, for example. For example, the timing of this ejection is when the portion corresponding to the colored portion such as the pattern 22 shown in FIG. be.

The controller 120 may calculate the driving timing of the head 110 based on the control parameters of the circular loom 5 . Control parameters include, for example, the supply speed of the warp yarns M toward the cone 51, the number of revolutions of the motor 54, the conveying speed of the woven jacket 2, and the like. Based on these control parameters, it is possible to calculate the feed amount of the warp M from the discharge operation corresponding to the previous pattern 22, and based on this feed amount, determine the timing of the discharge operation corresponding to the next pattern 22. can decide.

For example, when the colored portion to be formed on the outer surface of the jacket 2 is a continuous line in the longitudinal direction of the jacket 2 , the controller 120 may cause the paint to be continuously discharged from the specific nozzles 111 . As a result, some of the warp yarns M supplied to the cone 51 can be continuously colored. The boundary line 21 described above may be formed in this manner.

A colored portion such as the pattern 25 may be formed by applying paint to the warp yarns M forming the region A shown in FIG. The pattern 25 may be intermittently provided in the length direction of the jacket 2 or may be provided continuously. Alternatively, the entire region A may be colored with a specific color. In this case, the warp threads M forming the region A may be colored by continuously discharging paint from specific nozzles 111 .

In this embodiment, since the warp yarns M are colored before weaving, colored portions can be formed at positions where accurate coloring is difficult after weaving.

Between the plurality of warp threads M passing through the working position P there is a gap. Therefore, part of the paint discharged from the head 110 may pass through the gap and head toward the side peripheral surface of the circular loom 5 . Counter member 130 receives such paint. As a result, the side peripheral surface of the annular loom 5 and the like are less likely to be stained with the paint.

FIG. 10 is a schematic cross-sectional view of the fire hose 1 manufactured by the manufacturing method according to this embodiment. This fire hose 1 comprises a jacket 2 plain-woven with warp M and weft L, a lining layer 3 , and an adhesive layer AD for bonding the jacket 2 and the lining layer 3 together. Note that the jacket 2 may have other structures such as a twill weave.

In the warp threads M forming the colored portion such as the pattern 22, dots are attached to the portion where the paint is adhered. The paint applied to the warp M by the coloring device 100 also permeates the inside of the warp M. Therefore, in the colored portion, the warp yarn M is located on the outer surface side of the jacket 2 with respect to the weft yarn L, between the weft yarn L and the lining layer 3, or between the adjacent weft yarns L. is also colored as a whole. On the other hand, the paint does not permeate the weft L.

FIG. 11 is a schematic cross-sectional view of a fire hose 201 according to a comparative example. This fire hose 201 includes a plain weave jacket 2, a lining layer 3, and an adhesive layer AD, as in the example of FIG.

The colored portion of the fire hose 201 is formed by applying paint to the outer surface of the jacket 2 after the jacket 2 is woven. In this case, for example, as illustrated, the paint penetrates only the surface layer of the warp yarn M, and hardly penetrates between the adjacent weft yarns L and between the weft yarn L and the lining layer 3 .

If the jacket 2 of the fire hose 201 shown in FIG. 11 is rubbed, the portion of the warp M where the paint has permeated may be damaged, making it difficult to see the colored portion such as the pattern 22 . On the other hand, in the fire hose 1 shown in FIG. 10, since the paint penetrates into the warp M over the entire thickness direction of the jacket 2, even if the surface layer of the jacket 2 is damaged, the pattern 22 can be applied. It is possible to maintain the visibility of the colored portion such as. From another point of view, the durability of the colored portion can be enhanced.

For example, in the case of coloring the entire jacket 2 or a wide range thereof, if the weft thread L is also penetrated with the paint, it becomes difficult to grasp the state of damage to the jacket 2 . On the other hand, in the example of FIG. 10, since the paint does not permeate the weft L, the weft L of the background color is exposed when the surface warp M is worn out. Therefore, the damaged portion of the jacket 2 can be easily grasped.

As in the present embodiment described above, even when the paint is applied to the warp yarns M before weaving, it is possible to increase the manufacturing efficiency of the fire hose 1 to the jacket 2 in the same manner as in the first embodiment. is. Also, the workshop for coloring can be omitted. Furthermore, as described with reference to FIGS. 10 and 11, a fire hose 1 having a colored portion with excellent visibility and durability can be obtained.

[Third embodiment]
A third embodiment will be described. Configurations and effects not specifically mentioned are the same as those of the above-described embodiments.

FIG. 12 is a schematic top view of the jacket manufacturing apparatus 4 according to this embodiment. The jacket manufacturing device 4 includes a circular loom 5 and a coloring device 100 as in the first and second embodiments. In this embodiment, the coloring device 100 includes multiple heads 110 . Each head 110 faces the side peripheral surface of the circular loom 5, as in the example shown in FIG.

In the example of FIG. 12, a plurality of heads 110 are arranged in a ring. A plurality of warp yarns M supplied to the cone 51 all face one of the heads 110 . That is, a circular working position P is formed by each head 110 . A facing member 130 and a drying device 140 similar to those in the example of FIG. 9 may be provided for each head 110 .

The coloring apparatus 100 can apply paint to each warp M passing through the working position P by each head 110 . With such a configuration, a colored portion such as the pattern 22 can be formed at any position on the outer circumference of the jacket 2 . For the method of driving the head 110 by the controller 120 of the coloring apparatus 100, for example, the same method as in the second embodiment can be applied.

For example, the paint may be applied to all the warp yarns M or the warp yarns M other than the warp yarns M forming the boundary line 21 by continuously discharging the paint from the nozzles 111 of each head 110 . In this case, it is possible to obtain a jacket 2 whose entire outer surface is colored.

By using the jacket manufacturing apparatus 4 according to the present embodiment described above, a wider range of the outer surface of the jacket 2 can be colored than in the first and second embodiments. As a result, it is possible to manufacture fire hoses 1 to jackets 2 having various colored portions.

[Fourth embodiment]
A fourth embodiment will be described. Configurations and effects not specifically mentioned are the same as those of the above-described embodiments.

FIG. 13 is a diagram showing a schematic configuration of the coloring device 100 according to this embodiment. In each of the embodiments described above, the case where the coloring apparatus 100 is mainly an inkjet printer has been exemplified. On the other hand, the coloring device 100 shown in FIG. 13 is a so-called roller stamp.

Specifically, the coloring device 100 includes a first roller 150 and a second roller 160 . The first roller 150 has a projecting portion 151 having a shape corresponding to the colored portion (such as the pattern 22 described above) to be formed on the jacket 2 on its outer peripheral surface. The second roller 160 is, for example, a sponge-like member soaked with paint.

The coloring device 100 may further include a facing member 130 . A facing member 130 shown in FIG. 13 is a roller facing the outer peripheral surface of the first roller 150 . The facing member 130 may be a member other than the roller, such as a plate.

For example, when the coloring apparatus 100 according to the present embodiment is applied to the jacket manufacturing apparatus 4 according to the first embodiment, the jacket 2 woven by the circular loom 5 passes through the nip between the first roller 150 and the facing member 130. be transported. This nip corresponds to the working position P.

When the jacket 2 is conveyed, the first roller 150 and the opposing member 130 rotate accordingly. Along with this rotation, the projecting portion 151 comes into contact with the second roller 160 and paint adheres to the projecting portion 151 . After that, when the projecting portion 151 reaches the working position P, the paint adhering to the projecting portion 151 is transferred to the outer surface of the jacket 2 .

In such a configuration, the colored portions are formed on the outer surface of the jacket 2 at a pitch corresponding to the length of the outer circumference of the first roller 150 . A plurality of protrusions 151 may be formed on the outer peripheral surface of the first roller 150 . Further, the shape of the plurality of projecting portions 151 and the position in the width direction of the jacket 2 may be different.

The configuration of the coloring apparatus 100 according to this embodiment can also be applied to the jacket manufacturing apparatus 4 according to the second and third embodiments. In this case, the warp M before weaving should be passed through the working position P.

The paint of the second roller 160 may adhere to the entire outer peripheral surface of the first roller 150 without providing the protruding portion 151, or the first roller 150 itself may be formed like a sponge and soaked with the paint. In these cases, the jacket 2 and the warp M can be colored continuously.

The first to fourth embodiments described above do not limit the scope of the present invention to the configurations disclosed in each embodiment. The present invention can be carried out by modifying the configurations disclosed in the above embodiments into various modes.

The arrangement position of the coloring device 100 is not limited to those exemplified in each embodiment. For example, when applying paint to the woven jacket 2 as in the first embodiment, the coloring device 100 may be arranged on a different floor (for example, a lower floor) from the circular loom 5 . Alternatively, the coloring device 100 may be arranged inside the circular loom 5 . The working position P in this case may be set, for example, between the nip of the rollers 91 and 92 and the nip of the rollers 93 and 95 shown in FIG. may be set to

Further, when the paint is applied to the warp yarns M before weaving as in the second and third embodiments, the coloring device 100 may be arranged on a different floor (for example, a lower floor) than the circular loom 5. good. Also, the coloring device 100 may be arranged above the circular loom 5 .

The configuration of the coloring device 100 is not limited to the inkjet printer or roller stamp described above. In addition, various configurations can be applied to the coloring device 100, such as one that screen-prints the jacket 2 before being cut.

DESCRIPTION OF SYMBOLS 1... Fire hose, 2... Jacket, 3... Lining layer, 4... Jacket manufacturing apparatus, 5... Circular loom, 6... Creel, 100... Coloring apparatus, 110... Head, 111... Nozzle, 120... Controller, 130... Counterpart Members, P... work position, F... floor, OP... transfer port, W... wall member.

Claims (13)

a loom for weaving a hose jacket from a plurality of sequentially supplied warp and weft threads;
a coloring device for applying paint to the outer surface of the jacket connected to the warp yarns before weaving by the loom;
A jacket manufacturing device comprising: The coloring device forms a pattern on the outer surface of the jacket with the paint.
The jacket manufacturing apparatus according to claim 1. The jacket, which is connected to the warp yarns before weaving, is continuously conveyed along a route passing through a working position where coloring is performed by the coloring device,
The coloring device applies the paint to the jacket being conveyed through the work position.
The jacket manufacturing apparatus according to claim 1 or 2. Further comprising a drying device for drying the paint adhering to the jacket connected to the warp yarns before weaving,
The jacket manufacturing apparatus according to any one of claims 1 to 3. a loom for weaving a hose jacket from a plurality of sequentially supplied warp and weft threads;
a coloring device for applying paint to the warp yarns connected to the jacket before weaving;
A jacket manufacturing device comprising: The coloring device forms a pattern on the outer surface of the jacket woven using the warp threads by applying the paint to the plurality of warp threads.
The jacket manufacturing apparatus according to claim 5. At least one of the plurality of warp yarns before weaving connected to the jacket is continuously conveyed on a route passing through a working position where coloring is performed by the coloring device,
The coloring device applies the paint to the warp yarn being conveyed through the working position.
The jacket manufacturing apparatus according to claim 5 or 6. Further comprising a drying device for drying the paint adhering to the warp before weaving connected to the jacket,
The jacket manufacturing apparatus according to any one of claims 5 to 7. The coloring device further includes a nozzle for discharging the paint and a facing member facing the nozzle,
A plurality of the warp yarns connected to the jacket before weaving are conveyed between the nozzle and the facing member, and the paint discharged from the nozzle and passing through the gaps between the warp yarns is received by the facing member.
The jacket manufacturing apparatus according to any one of claims 5 to 8. The coloring device applies the paint to all the warp threads connected to the jacket.
The jacket manufacturing apparatus according to any one of claims 5 to 9. a weaving step of weaving a hose jacket with a plurality of warp and weft threads;
a coloring step of applying paint to the outer surface of the jacket connected to the warp yarns before weaving;
jacket manufacturing method including; a weaving step of weaving a hose jacket with a plurality of warp and weft threads;
a coloring step of applying paint to the warp yarns connected to the jacket before weaving;
jacket manufacturing method including; The weaving step and the coloring step according to claim 11 or 12,
a cutting step of cutting the jacket to which the paint is attached;
a lining forming step of forming a lining layer on the inner surface of the cut jacket;
A hose manufacturing method comprising:

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