WO2006027833A1 - Flexible pipe and method of manufacturing flexible pipe - Google Patents

Flexible pipe and method of manufacturing flexible pipe Download PDF

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Publication number
WO2006027833A1
WO2006027833A1 PCT/JP2004/013050 JP2004013050W WO2006027833A1 WO 2006027833 A1 WO2006027833 A1 WO 2006027833A1 JP 2004013050 W JP2004013050 W JP 2004013050W WO 2006027833 A1 WO2006027833 A1 WO 2006027833A1
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WO
WIPO (PCT)
Prior art keywords
tube
flexible pipe
spiral
spiral tube
pipe
Prior art date
Application number
PCT/JP2004/013050
Other languages
French (fr)
Japanese (ja)
Inventor
Toshiharu Matsuyama
Original Assignee
Kokusan Rasenkan Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kokusan Rasenkan Co., Ltd. filed Critical Kokusan Rasenkan Co., Ltd.
Priority to PCT/JP2004/013050 priority Critical patent/WO2006027833A1/en
Publication of WO2006027833A1 publication Critical patent/WO2006027833A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/021—Devices for positioning or connecting of water supply lines
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/025—Water supply lines as such, e.g. shower hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • F16L11/16—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands

Definitions

  • the present invention relates to a flexible pipe that can be suitably used when, for example, a shower hose, a flexible pipe, or an electric wire is used, and a method for manufacturing the flexible pipe.
  • FIG. 1 is a diagram illustrating the configuration of a conventional flexible pipe.
  • the flexible pipe 1 includes a nut 2, an inner bushing 3 with a screw, an inner bushing 4, a tube 5, a helical tube 6 and a cover 7.
  • FIG. 2 is a simplified and enlarged view of a part of the conventional flexible pipe shown in FIG.
  • the conventional flexible pipe 1 has a helical path 6 that is made by brazing a long material with a substantially S-shaped cross section into a spiral while the upper and lower parts overlap each other. And the tube 5 inserted on the inner surface side of the spiral path 6.
  • the tube 5 inserted on the inner surface side of the racen tube 6 is generally a straight shape.
  • the pressure resistance is weak because the pressure is concentrated on the helical tube 6, the tube 5, and the fittings with respect to the internal pressure.
  • An object of the present invention is to solve the above-described conventional problems and provide a flexible pipe with excellent pressure resistance and a method for manufacturing the flexible pipe, which can prevent liquid from entering with an external force. .
  • the present invention provides a spiral tube manufactured by brazing a long material having a substantially S-shaped cross section so that the upper part and the lower part overlap each other.
  • a flexible pipe including a tube made in accordance with a shape of a spiral groove formed between the upper portion and the lower portion on the inner surface side of the spiral tube.
  • the thickness of the tube can be reduced by processing the unevenness of the tube with respect to the unevenness inside the spiral tube and integrating the spiral tube and the tube.
  • liquid can be prevented from entering from the outside.
  • the conventional flexible pipe has a structure in which the pressure is concentrated on the spiral tube, tube, and mounting bracket with respect to the internal pressure.
  • the flexible pipe of the present invention has a spiral tube and a tube with respect to the internal pressure. The pressure resistance will increase.
  • the tube is arranged in a part of the spiral tube. According to the present invention, it is possible to change the softness by partially applying the tube rather than applying it to the entire length.
  • the said tube is a tube made from a resin.
  • the present invention includes a step of attaching a long material having a substantially S-shaped cross section to a force spiral so that the upper portion and the lower portion overlap each other, and producing a spiral tube; and an inner surface side of the spiral tube And a step of inserting into the spiral tube a tube manufactured in accordance with the shape of the spiral groove formed between the upper part and the lower part. .
  • FIG. 1 is a diagram illustrating a configuration of a conventional flexible pipe.
  • FIG. 2 A simplified and enlarged view of a portion of the conventional flexible pipe shown in FIG. It is.
  • FIG. 3 is a diagram showing a flexible pipe according to the present embodiment.
  • FIG. 4 is a partially enlarged view of the flexible pipe shown in FIG.
  • FIG. 5 is a view exemplifying a long member used for manufacturing the flexible pipe.
  • FIG. 3 is a diagram showing a flexible pipe according to the present embodiment.
  • the flexible pipe 10 includes a nut 2, a threaded inner push 3, an inner push 4, a tube 15, a helical tube 6 and a cover 7.
  • FIG. 4 is a partially enlarged view of the flexible pipe shown in FIG. In FIG. 4, a cross section is shown with hatching so that the inside of the flexible pipe 10 can be confirmed.
  • the flexible pipe 10 is composed of a helical tube 6 made by brazing a long material having a substantially S-shaped cross section so that the upper part and the lower part overlap each other, and a helical pipe 6 On the inner surface side of the tube 6, a greasy tube 15 produced in accordance with the shape of the spiral groove portion 17 formed between the upper portion and the lower portion is included.
  • the tube 15 is made uneven with respect to the unevenness on the inner side of the spiral tube 6, and the helical tube 6 and the tube 15 are integrated so that the thickness of the tube can be made thinner than before. In addition, it can prevent the intrusion of liquids from outside forces.
  • the conventional flexible pipe has a structure in which the pressure is concentrated on the helical tube, the tube, and the mounting bracket with respect to the internal pressure.
  • the helical pipe 6 the helical pipe 6, The tube 15 will receive it and the pressure resistance will increase.
  • the tube 15 of the flexible pipe 10 may be arranged in a part of the spiral pipe 6. In this way, it is possible to change the softness by applying the tube 15 partially rather than applying it to the entire length.
  • FIG. 5 is a diagram illustrating a long member used for producing the flexible pipe.
  • FIG. 5 (a) is a view of the long member 20 also viewed from the front
  • FIG. 5 (b) is a view showing a cross section AA in FIG.
  • the long member 20 for example, a metal plate made of stainless steel or the like formed into a thin plate of about several millimeters and processed so as to have an S-shaped cross section as shown in (b) is preferably used. It is possible to be.
  • the helical tube 6 is formed.
  • the groove portion 17 can be formed by being slightly offset downward.
  • the groove 17 is formed in a spiral shape on the inner surface of the helical tube 6.
  • the spiral groove portion 17 is formed so that the one end force of the flexible pipe 10 continues to the other end.
  • the groove 17 does not perform any function and is merely a dead space in the spiral tube 6.
  • the inventors of the present application have arrived at the present invention paying attention to the fact that this dead space can be effectively utilized.
  • the groove part 17 having a predetermined volume is formed. Then, as shown in FIG. 4, the resin tube 15 produced in accordance with the spiral groove 17 is inserted into the spiral tube 6. In this way, the flexible pipe 10 according to the present invention is manufactured.
  • the tube 15 is made uneven with respect to the unevenness inside the helical tube 6, and the helical tube 6 and the tube 15 are integrated together, so that the thickness of the tube is made thinner than before.
  • the external force can also prevent the ingress of liquid.
  • the conventional flexible pipe has a structure in which the pressure is concentrated on the helical tube, tube, and mounting bracket with respect to the internal pressure.
  • the helical tube 6 and the tube 15 with respect to the internal pressure. As a whole, it will be received and the pressure resistance will increase.
  • the tube 15 is arranged on a part of the spiral pipe 6 which is not applied to the entire length of the flexible pipe 10. This makes it possible to change the softness by partially applying.
  • the flexible pipe 10 includes a step of manufacturing a spiral tube by attaching a long material having a substantially S-shaped cross section to a spiral while the upper portion and the lower portion overlap each other, and an inner surface side of the spiral tube.
  • the tube manufactured in accordance with the shape of the spiral groove formed between the upper portion and the lower portion is inserted through the spiral tube. This makes it possible to reduce the thickness of the tube and to prevent liquid from entering from the outside. Rexible pipes can be provided.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

A flexible pipe, comprising a spiral tube manufactured by spirally winding long materials of approximately S-shape in cross section so that the upper parts and the lower parts thereof are partly overlapped with each other and a tube manufactured according to the shape of spiral groove parts formed between the upper and lower parts on the inner surface side of the spiral tube. Since recesses and projections are formed on the tube according to recesses and projections on the inside of the spiral tube, and the spiral tube is formed integrally with the tube, the wall thickness of the tube can be reduced and the entry of a liquid from the outside therein can be prevented. Since an internal pressure is received by the entire parts of the spiral tube and the tube, the pressure resistance of the pipe can be increased. Also, since the tube is disposed in a part of the spiral tube, the flexibility of the pipe can be varied.

Description

明 細 書 技術分野  Technical field
[0001] 本発明は、例えばシャワーホース、配管用フレキ又は電線を使用するときに好適に 用いることができるフレキシブルパイプ及びフレキシブルパイプの製造方法に関する 背景技術  TECHNICAL FIELD [0001] The present invention relates to a flexible pipe that can be suitably used when, for example, a shower hose, a flexible pipe, or an electric wire is used, and a method for manufacturing the flexible pipe.
[0002] フレキシブルパイプは可撓性があるので配管及び配線の作業性に富み、また、パイ プ内部に収納したものを外力から保護できる。そこで、従来力もフレキシブルパイプ は、シャワーホース、配管用ホース又は電線を設置する際の保護管として広く使用さ れている。図 1は従来のフレキシブルパイプの構成を説明する図である。図 1に示す ように、フレキシブルパイプ 1は、ナット 2、ネジ付きインナープッシング 3、インナーブ ッシング 4、チューブ 5、ラセン管 6およびカバー 7を含んで構成される。  [0002] Since the flexible pipe is flexible, it is excellent in workability of piping and wiring, and the one housed in the pipe can be protected from external force. Therefore, flexible pipes have been widely used as protective tubes when installing shower hoses, piping hoses or electric wires. FIG. 1 is a diagram illustrating the configuration of a conventional flexible pipe. As shown in FIG. 1, the flexible pipe 1 includes a nut 2, an inner bushing 3 with a screw, an inner bushing 4, a tube 5, a helical tube 6 and a cover 7.
[0003] 図 2は、図 1に示した従来のフレキシブルパイプの一部を簡略ィ匕して拡大して示し た図である。図 2に示すように、従来のフレキシブルパイプ 1は、横断面が略 S字であ る長尺材料を上部と下部とがー部重なるようにしながら螺旋に卷付けて作製されたラ セン路 6と、ラセン路 6の内面側に挿入されたチューブ 5とを含む。  FIG. 2 is a simplified and enlarged view of a part of the conventional flexible pipe shown in FIG. As shown in Fig. 2, the conventional flexible pipe 1 has a helical path 6 that is made by brazing a long material with a substantially S-shaped cross section into a spiral while the upper and lower parts overlap each other. And the tube 5 inserted on the inner surface side of the spiral path 6.
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0004] しかしながら、上記従来のフレキシブルパイプ 1において、図 2に示したように、ラセ ン管 6の内面側に挿入されたチューブ 5はストレート形状のものが一般的である力 こ の構成では、ラセン管 6とチューブ 5との間に隙間ができてしまうため外部からの液体 の侵入を防ぐことができないという問題がある。また内圧に対してラセン管 6、チュー ブ 5、取り付け金具の部分に圧力が集中するため、耐圧が弱いという問題があった。  [0004] However, in the conventional flexible pipe 1, as shown in FIG. 2, the tube 5 inserted on the inner surface side of the racen tube 6 is generally a straight shape. In this configuration, Since there is a gap between the helical tube 6 and the tube 5, there is a problem that it is not possible to prevent liquid from entering from the outside. In addition, there is a problem that the pressure resistance is weak because the pressure is concentrated on the helical tube 6, the tube 5, and the fittings with respect to the internal pressure.
[0005] 本発明は、前述した従来における課題を解決し、外部力 の液体の侵入を防ぐこと ができると共に、耐圧に優れたフレキシブルパイプ及びフレキシブルパイプの製造方 法を提供することを目的とする。 課題を解決するための手段 [0005] An object of the present invention is to solve the above-described conventional problems and provide a flexible pipe with excellent pressure resistance and a method for manufacturing the flexible pipe, which can prevent liquid from entering with an external force. . Means for solving the problem
[0006] 上記課題を解決するために、本発明は、横断面が略 S字である長尺材料を上部と 下部とがー部重なるようにしながら螺旋に卷付けて作製された螺旋管と、前記螺旋管 の内面側において前記上部と下部との間に形成された螺旋状の溝部の形状に合わ せて作製されたチューブとを含むことを特徴とするフレキシブルパイプである。本発 明によれば、螺旋管内側の凹凸に対してチューブを凹凸加工し、螺旋管とチューブ を一体化することで、チューブの肉厚を薄くすることができる。また、外側から液体の 侵入を防ぐことができる。従来のフレキシブルパイプでは、内圧に対して螺旋管、チュ ーブ、取り付け金具の部分に圧力が集中する構造になっていた力 本発明のフレキ シブルパイプでは、内圧に対して螺旋管、チューブの全体で受けることになり耐圧が 強まる。  [0006] In order to solve the above problems, the present invention provides a spiral tube manufactured by brazing a long material having a substantially S-shaped cross section so that the upper part and the lower part overlap each other. A flexible pipe including a tube made in accordance with a shape of a spiral groove formed between the upper portion and the lower portion on the inner surface side of the spiral tube. According to the present invention, the thickness of the tube can be reduced by processing the unevenness of the tube with respect to the unevenness inside the spiral tube and integrating the spiral tube and the tube. In addition, liquid can be prevented from entering from the outside. The conventional flexible pipe has a structure in which the pressure is concentrated on the spiral tube, tube, and mounting bracket with respect to the internal pressure. The flexible pipe of the present invention has a spiral tube and a tube with respect to the internal pressure. The pressure resistance will increase.
[0007] 上記チューブは、前記螺旋管の一部に配置されていることを特徴とする。本発明に よれば、チューブを全長に施すことではなぐ部分的に施すことによって柔らかさに変 化を付けることができる。上記チューブは榭脂製のチューブである。  [0007] The tube is arranged in a part of the spiral tube. According to the present invention, it is possible to change the softness by partially applying the tube rather than applying it to the entire length. The said tube is a tube made from a resin.
[0008] 本発明は、横断面が略 S字である長尺材料を上部と下部とがー部重なるようにしな 力 螺旋に卷付けて螺旋管を作製する工程と、前記螺旋管の内面側において前記 上部と下部との間に形成された螺旋状の溝部の形状に合わせて作製されたチュー ブを前記螺旋管内に挿入する工程とを含むことを特徴とするフレキシブルパイプの製 造方法である。フレキシブルパイプを製造する工程で形成される溝部を有効に活用 してこの溝部に合うように作製されたチューブを挿入することで、チューブの肉厚を薄 くすることができ、また、外側から液体の侵入を防ぐことができるフレキシブルノイブを 製造できる。  [0008] The present invention includes a step of attaching a long material having a substantially S-shaped cross section to a force spiral so that the upper portion and the lower portion overlap each other, and producing a spiral tube; and an inner surface side of the spiral tube And a step of inserting into the spiral tube a tube manufactured in accordance with the shape of the spiral groove formed between the upper part and the lower part. . By effectively using the groove formed in the process of manufacturing the flexible pipe and inserting the tube made to fit this groove, the thickness of the tube can be reduced, and the liquid can be applied from the outside. Can produce a flexible noise that can prevent the intrusion of water.
発明の効果  The invention's effect
[0009] 本発明によれば、外部力 の液体の侵入を防ぐことができると共に、耐圧に優れた フレキシブルパイプ及びフレキシブルパイプの製造方法を提供できる。  [0009] According to the present invention, it is possible to provide a flexible pipe and a method for manufacturing a flexible pipe that can prevent liquid from entering with an external force and have excellent pressure resistance.
図面の簡単な説明  Brief Description of Drawings
[0010] [図 1]従来のフレキシブルパイプの構成を説明する図である。 [0010] FIG. 1 is a diagram illustrating a configuration of a conventional flexible pipe.
[図 2]図 1に示した従来のフレキシブルパイプの一部を簡略ィ匕して拡大して示した図 である。 [Fig. 2] A simplified and enlarged view of a portion of the conventional flexible pipe shown in FIG. It is.
[図 3]本実施形態に係るフレキシブルパイプを示す図である。  FIG. 3 is a diagram showing a flexible pipe according to the present embodiment.
[図 4]図 3に示したフレキシブルパイプの部分拡大図である。  4 is a partially enlarged view of the flexible pipe shown in FIG.
[図 5]本フレキシブルパイプを作製するのに用いる長尺部材を例示した図である。 発明を実施するための最良の形態  FIG. 5 is a view exemplifying a long member used for manufacturing the flexible pipe. BEST MODE FOR CARRYING OUT THE INVENTION
[0011] 以下、添付の図面を参照して本発明の実施形態を説明する。以下、図面に基づい て本発明の一実施形態に係るフレキシブルパイプについて説明する。図 3は、本実 施形態に係るフレキシブルパイプを示す図である。図 3に示すように、フレキシブルパ ィプ 10は、ナット 2、ネジ付きインナープッシング 3、インナープッシング 4、チューブ 1 5、ラセン管 6およびカバー 7を含んで構成される。  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Hereinafter, a flexible pipe according to an embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a diagram showing a flexible pipe according to the present embodiment. As shown in FIG. 3, the flexible pipe 10 includes a nut 2, a threaded inner push 3, an inner push 4, a tube 15, a helical tube 6 and a cover 7.
[0012] 図 4は、図 3に示したフレキシブルパイプの部分拡大図である。図 4では、フレキシ ブルパイプ 10の内部が確認できるようにハッチングを入れて断面を示して 、る。図 4 に示すように、フレキシブルパイプ 10は、横断面が略 S字である長尺材料を上部と下 部とがー部重なるようにしながら螺旋に卷付けて作製されたラセン管 6と、ラセン管 6 の内面側にお 、て上部と下部との間に形成された螺旋状の溝部 17の形状に合わせ て作製された榭脂性のチューブ 15とを含む。  FIG. 4 is a partially enlarged view of the flexible pipe shown in FIG. In FIG. 4, a cross section is shown with hatching so that the inside of the flexible pipe 10 can be confirmed. As shown in FIG. 4, the flexible pipe 10 is composed of a helical tube 6 made by brazing a long material having a substantially S-shaped cross section so that the upper part and the lower part overlap each other, and a helical pipe 6 On the inner surface side of the tube 6, a greasy tube 15 produced in accordance with the shape of the spiral groove portion 17 formed between the upper portion and the lower portion is included.
[0013] このようにラセン管 6内側の凹凸に対してチューブ 15を凹凸加工し、ラセン管 6とチ ユーブ 15を一体ィ匕することで、従来よりもチューブの肉厚を薄くすることができ、また 、外側力もの液体の侵入を防ぐことができる。また、従来のフレキシブルパイプでは、 内圧に対してラセン管、チューブ、取り付け金具の部分に圧力が集中する構造にな つていたが、本発明のフレキシブルパイプ 10では、内圧に対してラセン管 6、チュー ブ 15の全体で受けることになり耐圧が強まる。なお、フレキシブルパイプ 10のチュー ブ 15をラセン管 6の一部に配置してもよい。このように、チューブ 15を全長に施すこと ではなぐ部分的に施すことによって柔らかさに変化を付けることができる。  [0013] In this way, the tube 15 is made uneven with respect to the unevenness on the inner side of the spiral tube 6, and the helical tube 6 and the tube 15 are integrated so that the thickness of the tube can be made thinner than before. In addition, it can prevent the intrusion of liquids from outside forces. In addition, the conventional flexible pipe has a structure in which the pressure is concentrated on the helical tube, the tube, and the mounting bracket with respect to the internal pressure. However, in the flexible pipe 10 of the present invention, the helical pipe 6, The tube 15 will receive it and the pressure resistance will increase. Note that the tube 15 of the flexible pipe 10 may be arranged in a part of the spiral pipe 6. In this way, it is possible to change the softness by applying the tube 15 partially rather than applying it to the entire length.
[0014] 図 5は、本フレキシブルパイプを作製するのに用いる長尺部材を例示した図である 。図 5 (a)は長尺部材 20を正面力も見た図、（b)は（a)における A— A断面を示した図 である。長尺部材 20としては、例えばステンレス鋼等の金属板を数ミリ程度の薄板に 形成したものを (b)に示すように横断面が S字状となるように加工したものを好適に用 いることがでさる。 FIG. 5 is a diagram illustrating a long member used for producing the flexible pipe. FIG. 5 (a) is a view of the long member 20 also viewed from the front, and FIG. 5 (b) is a view showing a cross section AA in FIG. As the long member 20, for example, a metal plate made of stainless steel or the like formed into a thin plate of about several millimeters and processed so as to have an S-shaped cross section as shown in (b) is preferably used. It is possible to be.
[0015] 長尺部材 20の下部と長尺部材 20の上部との一部が重なるように、順次卷付けを行 えばラセン管 6が形成される。上記のように上に位置した長尺部材 20の下部に下側 に位置した長尺部材 20の上部を重ねるときに、下側に少しオフセットさせることで、溝 部 17を形成することができる。  If the brazing is performed sequentially so that the lower part of the long member 20 and the upper part of the long member 20 partially overlap, the helical tube 6 is formed. As described above, when the upper portion of the long member 20 positioned on the lower side is overlapped with the lower portion of the long member 20 positioned on the upper side, the groove portion 17 can be formed by being slightly offset downward.
[0016] この溝部 17は、ラセン管 6の内面に螺旋状に形成される。上記螺旋状の溝部 17は 、フレキシブルパイプ 10の一端力も他端まで連続して形成される。この溝部 17は、従 来において何らの機能も果しておらず単なるラセン管 6内のデッドスペースとなってい た。しかし、本願発明者等はこのデッドスペースを有効活用できることに着目して本発 明に至ったものである。  The groove 17 is formed in a spiral shape on the inner surface of the helical tube 6. The spiral groove portion 17 is formed so that the one end force of the flexible pipe 10 continues to the other end. Conventionally, the groove 17 does not perform any function and is merely a dead space in the spiral tube 6. However, the inventors of the present application have arrived at the present invention paying attention to the fact that this dead space can be effectively utilized.
[0017] すなわち、前述したように長尺部材 20の上部と下部の一部を重ねるように卷付けを 行ってフレキシブルパイプを形成する際に、所定容積の溝部 17を形成する。そして、 図 4で示したように、螺旋状の溝部 17に合わせて作製された榭脂製チューブ 15をラ セン管 6内側に挿入する。このようにして本発明によるフレキシブルパイプ 10が製造 される。  That is, when the flexible pipe is formed by brazing so as to overlap a part of the upper part and the lower part of the long member 20 as described above, the groove part 17 having a predetermined volume is formed. Then, as shown in FIG. 4, the resin tube 15 produced in accordance with the spiral groove 17 is inserted into the spiral tube 6. In this way, the flexible pipe 10 according to the present invention is manufactured.
[0018] 以上本実施形態によれば、ラセン管 6内側の凹凸に対してチューブ 15を凹凸加工 し、ラセン管 6とチューブ 15を一体ィ匕することで、従来よりもチューブの肉厚を薄くす ることができ、また、外側力も液体の侵入を防ぐことができる。また、従来のフレキシブ ルパイプでは、内圧に対してラセン管、チューブ、取り付け金具の部分に圧力が集中 する構造になっていた力 本発明のフレキシブルパイプ 10では、内圧に対してラセン 管 6、チューブ 15の全体で受けることになり耐圧が強まる。また、チューブ 15を、フレ キシブルパイプ 10の全長に施すことではなぐラセン管 6の一部に配置させる。これ により部分的に施すことによって柔らかさに変化を付けることができる。  [0018] As described above, according to the present embodiment, the tube 15 is made uneven with respect to the unevenness inside the helical tube 6, and the helical tube 6 and the tube 15 are integrated together, so that the thickness of the tube is made thinner than before. The external force can also prevent the ingress of liquid. In addition, the conventional flexible pipe has a structure in which the pressure is concentrated on the helical tube, tube, and mounting bracket with respect to the internal pressure. In the flexible pipe 10 of the present invention, the helical tube 6 and the tube 15 with respect to the internal pressure. As a whole, it will be received and the pressure resistance will increase. Further, the tube 15 is arranged on a part of the spiral pipe 6 which is not applied to the entire length of the flexible pipe 10. This makes it possible to change the softness by partially applying.
[0019] フレキシブルパイプ 10は、横断面が略 S字である長尺材料を上部と下部とがー部 重なるようにしながら螺旋に卷付けて螺旋管を作製する工程と、前記螺旋管の内面 側において前記上部と下部との間に形成された螺旋状の溝部の形状に合わせて作 製されたチューブを前記螺旋管内に挿入する工程を経て製造される。これにより、チ ユーブの肉厚を薄くすることができ、また、外側から液体の侵入を防ぐことができるフ レキシブルパイプを提供できる。 [0019] The flexible pipe 10 includes a step of manufacturing a spiral tube by attaching a long material having a substantially S-shaped cross section to a spiral while the upper portion and the lower portion overlap each other, and an inner surface side of the spiral tube. The tube manufactured in accordance with the shape of the spiral groove formed between the upper portion and the lower portion is inserted through the spiral tube. This makes it possible to reduce the thickness of the tube and to prevent liquid from entering from the outside. Rexible pipes can be provided.
以上本発明の好ましい実施例について詳述した力 本発明は係る特定の実施形 態に限定されるものではなぐ特許請求の範囲に記載された本発明の要旨の範囲内 において、種々の変形 ·変更が可能である。  Power described above in detail for the preferred embodiments of the present invention The present invention is not limited to such specific embodiments, and various modifications and changes can be made within the scope of the gist of the present invention described in the claims. Is possible.

Claims

請求の範囲 The scope of the claims
[1] 横断面が略 s字である長尺材料を上部と下部とがー部重なるようにしながら螺旋に卷 付けて作製された螺旋管と、  [1] A spiral tube made by attaching a long material having a substantially s-shaped cross section to a spiral while the upper part and the lower part overlap each other,
前記螺旋管の内面側において前記上部と下部との間に形成された螺旋状の溝部 の形状に合わせて作製されたチューブとを含むことを特徴とするフレキシブルパイプ  A flexible pipe comprising a tube formed in accordance with the shape of a spiral groove formed between the upper portion and the lower portion on the inner surface side of the spiral tube
[2] 前記チューブは、前記螺旋間の一部に配置されていることを特徴とする請求項 1記 載のフレキシブルパイプ。 2. The flexible pipe according to claim 1, wherein the tube is disposed in a part between the spirals.
[3] 前記チューブは、榭脂製のチューブであることを特徴とする請求項 1または請求項 2 記載のフレキシブルパイプ。 [3] The flexible pipe according to claim 1 or 2, wherein the tube is a tube made of resin.
[4] 螺旋管の内面側において形成された螺旋状の溝部の形状に合わせて作製されたチ ユーブを前記螺旋管内に挿入する工程を含むことを特徴とするフレキシブルパイプ の製造方法。 [4] A method for manufacturing a flexible pipe, comprising a step of inserting a tube produced in accordance with the shape of a spiral groove formed on the inner surface side of the spiral tube into the spiral tube.
PCT/JP2004/013050 2004-09-08 2004-09-08 Flexible pipe and method of manufacturing flexible pipe WO2006027833A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010263695A (en) * 2009-05-07 2010-11-18 Tigers Polymer Corp Underground pipe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683917A (en) * 1985-08-28 1987-08-04 Proprietary Technology, Inc. Flexible pressure-confining conduit assembly
JP3063326U (en) * 1999-04-23 1999-10-29 株式会社土井製作所 Flexible pipe for underground pipeline

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683917A (en) * 1985-08-28 1987-08-04 Proprietary Technology, Inc. Flexible pressure-confining conduit assembly
JP3063326U (en) * 1999-04-23 1999-10-29 株式会社土井製作所 Flexible pipe for underground pipeline

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010263695A (en) * 2009-05-07 2010-11-18 Tigers Polymer Corp Underground pipe

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