JP6534150B2 - Method of manufacturing hose - Google Patents

Method of manufacturing hose Download PDF

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JP6534150B2
JP6534150B2 JP2015054076A JP2015054076A JP6534150B2 JP 6534150 B2 JP6534150 B2 JP 6534150B2 JP 2015054076 A JP2015054076 A JP 2015054076A JP 2015054076 A JP2015054076 A JP 2015054076A JP 6534150 B2 JP6534150 B2 JP 6534150B2
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woven fabric
rubber
synthetic resin
tubular woven
layer
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JP2016172405A (en
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根立 敏
敏 根立
象平 山下
象平 山下
正記 坂口
正記 坂口
慧 石並
慧 石並
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Ashimori Industry Co Ltd
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Ashimori Industry Co Ltd
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Description

本発明はホースの製造方法に関するものであって、特に消防用などの、筒状の織布に内面にゴム又は合成樹脂の内張りを形成し、扁平に折り畳むことのできるホースの製造方法に関するものである。   The present invention relates to a method of manufacturing a hose, and more particularly to a method of manufacturing a hose which can be folded flat by forming a rubber or synthetic resin lining on the inner surface of a cylindrical woven fabric for fire fighting etc. is there.

従来この種のホースを製造する方法として、筒状織布の外面にゴム又は合成樹脂よりなる皮膜層を形成し、然る後に当該筒状織布の内外面を裏返して、前記皮膜層を内張りとするホースとする方法が知られている。   Conventionally, as a method of producing this kind of hose, a coating layer made of rubber or synthetic resin is formed on the outer surface of a tubular woven fabric, and then the inner and outer surfaces of the tubular woven fabric are turned over to line the coating layer. It is known how to make it a hose.

而してかかる方法において、筒状織布の外面にゴム又は合成樹脂に皮膜を形成する方法として、特開昭60−32623号公報に記載されたように、筒状織布の外面に接着層をなすゴム又は合成樹脂と、内張り本体の補強層をなすゴム又は合成樹脂とを、二層押出しにより押出して皮膜層を形成することが知られている。   In such a method, an adhesive layer is formed on the outer surface of the tubular woven fabric as described in JP-A-60-32623 as a method of forming a film on rubber or synthetic resin on the outer surface of the tubular woven fabric. It is known that the film layer is formed by extruding the rubber or synthetic resin forming the above and the rubber or synthetic resin forming the reinforcing layer of the lining body by two-layer extrusion.

この方法は、図2に示すように、押出ヘッド1内にマンドレル2を挿通し、当該押出ヘッド1とマンドレル2との間に、筒状織布3を挿通し、当該筒状織布3の外面に皮膜層4を形成するものである。   In this method, as shown in FIG. 2, the mandrel 2 is inserted into the extrusion head 1, and the tubular woven fabric 3 is inserted between the extrusion head 1 and the mandrel 2. The coating layer 4 is formed on the outer surface.

而して前記押出ヘッド1には押出機5が二台取り付けられており、その一方は前記皮膜層4の内層の接着層6を形成する接着性を有するゴム又は合成樹脂8を押出す接着層押出機5aであり、他の一方は前記皮膜層4の外層の補強層7を形成するゴム又は合成樹脂9を押出す、補強層押出機5bである。   Thus, two extruders 5 are attached to the extrusion head 1, one of which is an adhesive layer for extruding a rubber or synthetic resin 8 having adhesiveness to form an adhesive layer 6 of the inner layer of the film layer 4 The extruder 5a is an extruder 5a, and the other is an extruder 5b for extruding a rubber or synthetic resin 9 forming the reinforcement layer 7 of the outer layer of the coating layer 4.

そしてその接着層押出機5aから押出されたゴム又は合成樹脂8と、補強層押出機5bから押出されたゴム又は合成樹脂9とは、押出ヘッド1内における合体部10において合体し、内外二層の被押出物11として筒状織布3の表面に押出され、筒状織布3の表面に付着した状態で筒状織布3と共に押出ヘッド1の前方に押出される。   The rubber or synthetic resin 8 extruded from the adhesive layer extruder 5a and the rubber or synthetic resin 9 extruded from the reinforcing layer extruder 5b are united in the united portion 10 in the extrusion head 1, and the inner and outer two layers are produced. The extruded product 11 is extruded on the surface of the tubular woven fabric 3 and is extruded to the front of the extrusion head 1 together with the tubular woven fabric 3 in a state of adhering to the surface of the tubular woven fabric 3.

このようにして押出された筒状織布3の内外面を裏返すことにより、皮膜層4を内張りとしたホース19とするのであるが、このホース19においては、前記皮膜層4に凹凸が生じ、流水抵抗が大きくなるのである。   The inner and outer surfaces of the tubular woven fabric 3 extruded in this manner are turned over to form a hose 19 having the coating layer 4 as an inner lining. In the hose 19, the coating layer 4 has irregularities. Water resistance is increased.

すなわちホース19における筒状織布3は、環状に配置されたたて糸12と、当該たて糸12に対して螺旋状に織り込まれたよこ糸13とよりなっているので、その表面に織物特有の凹凸14が形成されており、皮膜層4を押出すときに当該皮膜層4が筒状織布3の凹部に押し込まれるのである。   That is, since the tubular woven fabric 3 in the hose 19 is composed of the warp yarn 12 arranged annularly and the weft yarn 13 woven in a spiral with respect to the warp yarn 12, the unevenness 14 unique to the fabric is formed on the surface. The film layer 4 is pushed into the recess of the tubular woven fabric 3 when the film layer 4 is extruded.

そのため図4に示されるように、筒状織布3の凹凸14が皮膜層4の表面にも凹凸15として現れ、この凹凸15はこの筒状織布3を裏返してホース19としたときに、当該ホース19の内面にも現れることとなり、そのホース19の流水抵抗が大きくなる原因となっていた。   Therefore, as shown in FIG. 4, the asperities 14 of the tubular woven fabric 3 also appear as asperities 15 on the surface of the film layer 4, and when the asperities 15 are turned over to form the hose 19, It also appears on the inner surface of the hose 19 and causes the flow resistance of the hose 19 to increase.

またこの凹凸15を少なくし、ホース19の流水抵抗が大きくなるのを防止するためには、皮膜層4の厚みを十分に厚くすることが必要であり、その皮膜層4の厚みのためにホース19が重くなることが避けられない。   Further, in order to reduce the unevenness 15 and prevent the flow resistance of the hose 19 from increasing, it is necessary to make the thickness of the film layer 4 sufficiently thick. It is inevitable that 19 becomes heavy.

特開昭60−32623号公報Japanese Patent Application Laid-Open No. 60-32623

本発明はかかる事情に鑑みなされたものであって、前述のような押出成型法により筒状織布3の表面に皮膜層4を形成するにあたって、皮膜層4の厚みが十分に薄くても、皮膜層4の表面に凹凸15が形成されることがなく、ホース19が軽く且つ流水抵抗が小さいホース19を提供することを目的とするものである。   The present invention has been made in view of such circumstances, and in forming the film layer 4 on the surface of the tubular woven fabric 3 by the extrusion molding method as described above, even if the thickness of the film layer 4 is sufficiently thin, An object of the present invention is to provide a hose 19 which is light in the hose 19 and small in flow resistance, without forming the unevenness 15 on the surface of the coating layer 4.

而して本発明は、環状に配置されたたて糸と、当該たて糸に対して螺旋状に織り込まれたよこ糸とよりなる筒状織物の外面に、ゴム又は合成樹脂の皮膜層を形成し、然る後に該筒状織物の内外面を裏返して、前記皮膜層を内張りとするホースとする方法において、前記筒状織物を、前記ゴム又は合成樹脂の押出ヘッドと当該押出ヘッド内に挿通されたマンドレルとの間に挿通し、先ず前記押出ヘッド内面と前記マンドレル外面との間隔を前記筒状織物の厚みとほゞ同等とし、当該箇所において接着層となるゴム又は合成樹脂を押出して前記筒状織物の布目の間に摺り込み、その後前記押出ヘッドの内径を前記筒状織物の外径よりも大きくし、前記接着層の外側に補強層となるゴム又は合成樹脂を押出して前記皮膜層を形成し、然る後に該筒状織物の内外面を裏返して、前記皮膜層を内張りとするホースとすることを特徴とするものである。   According to the present invention, a coating layer of rubber or synthetic resin is formed on the outer surface of a tubular fabric comprising a warp arranged in a ring and a weft yarn spirally woven into the warp. Later, in the method of turning over the inner and outer surfaces of the tubular woven fabric to form a hose having the coating layer as an inner liner, the tubular woven fabric is provided with an extrusion head of the rubber or synthetic resin and a mandrel inserted into the extrusion head. First, the distance between the inner surface of the extrusion head and the outer surface of the mandrel is made approximately equal to the thickness of the tubular fabric, and rubber or synthetic resin to be an adhesive layer is extruded at the location to obtain the tubular fabric. Then, the inner diameter of the extrusion head is made larger than the outer diameter of the tubular fabric, and a rubber or synthetic resin to be a reinforcing layer is extruded on the outside of the adhesive layer to form the coating layer. After that the tubular Flip the inner and outer surfaces of the object, is characterized in that the hose to lining the coating layer.

本発明においては、前記接着層となるゴム又は合成樹脂と、前記補強層となるゴム又は合成樹脂とが、異なるゴム又は合成樹脂であってもよいが、これを同一のゴム又は合成樹脂とすることも可能である。   In the present invention, although the rubber or synthetic resin to be the adhesive layer and the rubber or synthetic resin to be the reinforcing layer may be different rubbers or synthetic resins, they are the same rubber or synthetic resin. It is also possible.

本発明によれば、筒状織布の表面に先ず接着層となるゴム又は合成樹脂を摺り込むことにより、当該筒状織布の表面を平滑にし、然る後にその表面に補強層となるゴム又は合成樹脂を押出すことにより、前記筒状織布と補強層とが接着層を介して強固に接着されると共に、接着層の表面が平滑であるために筒状織布の表面の凹凸が補強層の表面に現れることがなく、その内外面を反転してホースとしたときも、当該ホースの内面が平滑であって、流水抵抗を大幅に低下させることができるのである。   According to the present invention, the surface of the tubular woven fabric is smoothened by first sliding the rubber or the synthetic resin to be the adhesive layer onto the surface of the tubular woven fabric, and then the rubber serving as the reinforcing layer on the surface thereof. Alternatively, by extruding a synthetic resin, the tubular woven fabric and the reinforcing layer are firmly bonded via the adhesive layer, and the surface of the adhesive layer is smooth, so that the surface of the tubular woven fabric has irregularities. Even when the inner and outer surfaces of the reinforcing layer are inverted to form a hose, the inner surface of the hose is smooth and the water flow resistance can be significantly reduced.

また本発明により得られたホースは、接着層により平滑にされた上に補強層が形成されるので、補強層の厚みが薄くても筒状織布の凹凸が補強層に現れることがなく、補強層を十分に薄くすることが可能であり、皮膜層が薄くなりそれによりホースをコンパクトで且つ軽量のものとすることができる。   In the hose obtained according to the present invention, since the reinforcing layer is formed on the surface after being smoothed by the adhesive layer, the unevenness of the tubular woven fabric does not appear in the reinforcing layer even if the thickness of the reinforcing layer is thin. It is possible to make the reinforcement layer sufficiently thin, so that the coating layer becomes thin, which allows the hose to be compact and lightweight.

本発明の方法を実施する押出装置の中央縦断面図Central longitudinal cross-sectional view of an extrusion apparatus embodying the method of the present invention 従来の方法を実施する押出装置の中央縦断面図Central longitudinal cross-sectional view of an extrusion apparatus for carrying out the conventional method 本発明の方法により製造されたホースの中央縦断面図Central longitudinal cross-sectional view of a hose manufactured by the method of the present invention 従来の方法により製造されたホースの中央縦断面図Central longitudinal section of a hose manufactured by the conventional method 本発明の他の方法を実施する押出装置の中央縦断面図Central longitudinal cross-sectional view of an extrusion apparatus embodying another method of the present invention

以下本発明を図面に基づいて説明する。図1は本発明の方法を実施する押出装置を示すものであって、押出ヘッド1内にマンドレル2が挿通されており、当該押出ヘッド1とマンドレル2との間に筒状織布3を挿通し、当該筒状織布3の外面に皮膜層4を形成するようになっている。   Hereinafter, the present invention will be described based on the drawings. FIG. 1 shows an extrusion apparatus for carrying out the method of the present invention, in which a mandrel 2 is inserted into an extrusion head 1 and a tubular woven fabric 3 is inserted between the extrusion head 1 and the mandrel 2. The coating layer 4 is formed on the outer surface of the tubular woven fabric 3.

而して前記筒状織布3は、環状に配置されたたて糸12と、当該たて糸12に対して螺旋状に織り込まれたよこ糸13とよりなっており、前記たて糸12とよこ糸13とを筒状に織成して、筒状織布3を形成している。   The tubular woven fabric 3 is composed of a warp yarn 12 arranged annularly and a weft yarn 13 woven in a spiral with respect to the warp yarn 12, and the warp yarn 12 and the weft yarn 13 are tubular. The tubular woven fabric 3 is formed.

而して本発明においては、先ず前記押出ヘッド1の内面16とマンドレル2の外面17との間隔tを、筒状織布3の厚みtとほゞ同等とし、当該箇所において接着層押出機5aから接着層6を形成するゴム又は合成樹脂8を押出し、当該ゴム又は合成樹脂8を筒状織布3の表面に摺り込む。 In Thus to the present invention, first, the distance t 1 between the outer surface 17 of inner surface 16 and the mandrel 2 of the extrusion head 1, the thickness t 2 of the tubular fabric 3 Ho Isuzu equivalent, the adhesive layer extruded in the place The rubber or synthetic resin 8 forming the adhesive layer 6 is extruded from the machine 5 a, and the rubber or synthetic resin 8 is slid onto the surface of the tubular woven fabric 3.

ここにおいてゴム又は合成樹脂8は筒状織布3の布目の間に摺り込まれ、布目を埋めるため、筒状織布3の表面の凹凸14はゴム又は合成樹脂8により埋められ、その表面は平滑となるのである。   Here, the rubber or synthetic resin 8 is slid between the weaves of the tubular woven fabric 3 and the unevenness 14 on the surface of the tubular woven fabric 3 is filled with the rubber or the synthetic resin 8 in order to fill the woven texture. It becomes smooth.

次いで前記押出ヘッド1の先端部においてその内径を前記筒状織物3の外径よりも大きくし、当該押出ヘッド1の内面18と筒状織布3との間に、補強層押出機5bから補強層7となるゴム又は合成樹脂9を押出し、前記接着層6の外側に補強層7を形成し、皮膜層4を形成する。   Then, the inner diameter of the tip portion of the extrusion head 1 is made larger than the outer diameter of the tubular fabric 3, and the reinforcing layer extruder 5b is reinforced between the inner surface 18 of the extrusion head 1 and the tubular fabric 3. The rubber or synthetic resin 9 to be the layer 7 is extruded, and the reinforcing layer 7 is formed on the outside of the adhesive layer 6 to form the film layer 4.

このとき前述のように、筒状織布3の表面の凹凸14がゴム又は合成樹脂8によって埋められ平滑にされているので、その表面に形成された補強層7の表面に筒状織布3の凹凸14が現れることがなく、図3に示すように補強層7の表面に図4のような凹凸15が形成されることがほとんどなく、平滑に形成されるのである。   At this time, as described above, since the irregularities 14 on the surface of the tubular woven fabric 3 are filled with rubber or synthetic resin 8 and smoothed, the tubular woven fabric 3 is formed on the surface of the reinforcing layer 7 formed on the surface. The unevenness 14 does not appear, and the unevenness 15 as shown in FIG. 4 is hardly formed on the surface of the reinforcing layer 7 as shown in FIG.

そしてこのようにして得られた、表面に皮膜層4を形成した筒状織布3を、その内外面を反転して前記皮膜層4を筒状織布3の内面に位置せしめて内張りとすることにより、ホースを製造することができる。   Then, the tubular woven fabric 3 having the coating layer 4 formed on the surface thereof obtained as described above is inverted by its inner and outer surfaces to position the coating layer 4 on the inner surface of the tubular woven fabric 3 to form a lining. Thus, the hose can be manufactured.

而して本発明によれば、接着層6が押出されたチューブ状のものを筒状織布3に貼り付けるのではなく、筒状織布3の表面に直接押出して摺り込むので、図3に示すように、筒状織布3の凹凸が接着層6によって埋まり、表面に現れることがなく、接着層6の表面はほゞ完全に平滑になる。   Thus, according to the present invention, the tube-like one from which the adhesive layer 6 has been extruded is not attached to the tubular woven fabric 3 but directly extruded onto the surface of the tubular woven fabric 3 to slide in. As shown in FIG. 2, the unevenness of the tubular woven fabric 3 is filled with the adhesive layer 6 and does not appear on the surface, and the surface of the adhesive layer 6 is almost completely smooth.

次いでその筒状織布3の表面に補強層7を形成するので、接着層6により埋まってほぼ完全に平滑になった筒状織布3の表面に補強層7が形成されることとなり、筒状織布3の凹凸は皮膜層4の表面に現れることがない。   Next, since the reinforcing layer 7 is formed on the surface of the tubular woven fabric 3, the reinforcing layer 7 is formed on the surface of the tubular woven fabric 3 which is filled with the adhesive layer 6 and is almost completely smooth. The unevenness of the woven fabric 3 does not appear on the surface of the coating layer 4.

従って皮膜層4により形成されるホースの内張りは、筒状織布3の織り目による凹凸の影響を受けることがなく、ほぼ完全に平滑になって、その中を流れる流水抵抗は大幅に低下する。   Accordingly, the inner lining of the hose formed by the coating layer 4 is not affected by the unevenness due to the weave of the tubular woven fabric 3, and becomes almost completely smooth, and the water flow resistance flowing therethrough is greatly reduced.

また筒状織布3と皮膜層4とは、接着層6を介して接着されている。特に当該接着層6と筒状織布3とは、接着層6を形成するゴム又は合成樹脂8を筒状織布3に摺り込んでいるので、ゴム又は合成樹脂8が繊維の間にまで侵入して強固に接着されており、皮膜層4が筒状織布3から剥がれるようなことはない。   The tubular woven fabric 3 and the film layer 4 are bonded via the adhesive layer 6. In particular, since the adhesive layer 6 and the tubular woven fabric 3 rub the rubber or synthetic resin 8 forming the adhesive layer 6 into the tubular woven fabric 3, the rubber or synthetic resin 8 penetrates into the space between the fibers. And the film layer 4 is not peeled off from the tubular woven fabric 3.

また本発明によれば補強層7の表面が平滑であるので、当該補強層7を薄くしてもその平滑さは変わることがなく、補強層7を薄くできるので、ホース19をコンパクトにし且つその軽量化を図ることができる。   Further, according to the present invention, since the surface of the reinforcing layer 7 is smooth, the smoothness does not change even if the reinforcing layer 7 is made thin, and the reinforcing layer 7 can be made thin. Weight reduction can be achieved.

図5は本発明の他の方法を実施する押出装置を示すものである。この例においてはゴム又は合成樹脂を押し出す押出機5は一台のみ設けられており、ここから押し出されたゴム又は合成樹脂20は押出ヘッド1内において二つに分離され、一つは接着層6を形成するゴム又は合成樹脂8として筒状織布3に摺り込まれ、他の一つは補強層7を形成するゴム又は合成樹脂9として、前記筒状織布3に摺り込まれた接着層6の表面に補強層7を形成する。   FIG. 5 shows an extrusion apparatus for carrying out another method of the present invention. In this example, only one extruder 5 for extruding rubber or synthetic resin is provided, and the rubber or synthetic resin 20 extruded therefrom is separated into two in the extrusion head 1, and one is an adhesive layer 6. An adhesive layer which is rubbed into the tubular woven fabric 3 as rubber or synthetic resin 8 to form a rubber, and the other is rubbed into the tubular woven fabric 3 as rubber or synthetic resin 9 which forms the reinforcing layer 7 The reinforcing layer 7 is formed on the surface of the sixth.

1 押出ヘッド
2 マンドレル
3 筒状織布
4 皮膜層
5a 接着層押出機
5b 補強層押出機
6 接着層
7 補強層
8、9 ゴム又は合成樹脂
12 たて糸
13 よこ糸
押出ヘッドとマンドレルとの間隔
筒状織布の厚み
DESCRIPTION OF SYMBOLS 1 extrusion head 2 mandrel 3 tubular woven fabric 4 coating layer 5a adhesive layer extruder 5b reinforcing layer extruder 6 adhesive layer 7 reinforcing layer 8 9 rubber or synthetic resin 12 warp 13 weft t 1 distance between extrusion head and mandrel t 2 Thickness of tubular woven fabric

Claims (2)

環状に配置されたたて糸(12)と、当該たて糸(12)に対して螺旋状に織り込まれたよこ糸(13)とよりなる筒状織物(3)の外面に、ゴム又は合成樹脂の皮膜層(4)を形成し、然る後に該筒状織物(3)の内外面を裏返して、前記皮膜層(4)を内張りとするホース(19)とする方法において、前記筒状織物(3)を、前記ゴム又は合成樹脂の押出ヘッド(1)と当該押出ヘッド(1)内に挿通されたマンドレル(2)との間に挿通し、先ず前記押出ヘッド(1)内面と前記マンドレル(2)外面との間隔(t)を前記筒状織物(3)の厚み(t)とほゞ同等とし、当該箇所において接着層(6)となるゴム又は合成樹脂(8)を押出して前記筒状織物(3)の布目の間に摺り込み、その後前記押出ヘッド(1)の内径を前記筒状織物(3)の外径よりも大きくし、前記接着層(6)の外側に補強層(7)となるゴム又は合成樹脂(9)を押出して前記皮膜層(4)を形成し、然る後に該筒状織物(3)の内外面を裏返して、前記皮膜層(4)を内張りとするホース(19)とすることを特徴とする、ホースの製造方法 A coating layer of rubber or synthetic resin on the outer surface of a tubular woven fabric (3) comprising an annularly arranged warp yarn (12) and a weft yarn (13) woven spirally with respect to the warp yarn (12) 4), and then the inner and outer surfaces of the tubular woven fabric (3) are turned over to form a hose (19) having the coating layer (4) as an inner lining, wherein the tubular woven fabric (3) is The rubber or synthetic resin is inserted between the extrusion head (1) and the mandrel (2) inserted into the extrusion head (1), first the inside of the extrusion head (1) and the mandrel (2) outside surface The space between them (t 1 ) and the thickness (t 2 ) of the tubular woven fabric (3), and extruding the rubber or synthetic resin (8) to be the adhesive layer Glide between the weaves of the fabric (3) and then the inner diameter of the extrusion head (1) Forming the film layer (4) by extruding a rubber or a synthetic resin (9) which is larger than the outer diameter of the tubular woven fabric (3) and forms the reinforcing layer (7) outside the adhesive layer (6) Thereafter, the inner and outer surfaces of the tubular woven fabric (3) are turned over to form a hose (19) having the film layer (4) as a lining, 前記接着層(6)となるゴム又は合成樹脂(8)と、前記補強層(7)となるゴム又は合成樹脂(9)とが、同一のゴム又は合成樹脂であることを特徴とする、請求項1に記載のホースの製造方法 The rubber or synthetic resin (8) to be the adhesive layer (6) and the rubber or synthetic resin (9) to be the reinforcing layer (7) are the same rubber or synthetic resin, Method of manufacturing a hose according to item 1
JP2015054076A 2015-03-17 2015-03-17 Method of manufacturing hose Active JP6534150B2 (en)

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JPS52156388A (en) * 1976-06-22 1977-12-26 Fujikura Ltd Preparing power cable
US6197239B1 (en) * 1995-06-26 2001-03-06 Nextrom Holding S.A. Extrusion apparatus and method for orienting plastic material by using an extrusion apparatus
JP3360014B2 (en) * 1998-01-19 2002-12-24 櫻護謨株式会社 hose

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