JP2004028149A

JP2004028149A - Conduit hose

Info

Publication number: JP2004028149A
Application number: JP2002182275A
Authority: JP
Inventors: Hidekazu Yamana; 山名　秀和
Original assignee: Tigers Polymer Corp
Current assignee: Tigers Polymer Corp
Priority date: 2002-06-24
Filing date: 2002-06-24
Publication date: 2004-01-29
Anticipated expiration: 2022-06-24
Also published as: JP4218906B2; CN1470795A; CN1260505C

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water supply hose capable of achieving easiness to handle when used, and compactness to be stored when not used, while maintaining the minimum flow resistance inside, and restricting the number of parts. <P>SOLUTION: The supply water hose is formed of a conduit hose that is continuously molded by expanding an extusion-molded resin tube. A hose unit includes a first waveform part 10 comprising a hose wall having recessed parts and projected parts alternately formed in the direction of an axial line of the hose, with the recessed parts having an inner circumferential surface that is formed as a flat surface roughly parallel to the axial line of the hose, and a second waveform part 20 comprising a hose wall having a roughly triangular cross sectional surface in an extended state, with one oblique side changed to a contracted state roughly parallel to the other oblique side around the center of its apex, to hold the state. At least two hose units are integrally formed. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、いわゆるコンジットホースに関し、例えば風呂水を利用して洗濯を行うため、洗濯機本体に接続する風呂水給水ホースに関する。
【０００２】
【従来の技術】
従来、風呂水給水ホースとしては合成樹脂可撓性ホースが用いられ、例えば特開平１１−１０４３９５号公報のように軟質合成樹脂製のチューブに硬質合成樹脂製の螺旋補強体を添着して構成したものが知られている。そして、風呂水を洗濯機に給水する場合には、このホースの一端部に取付けた継手を洗濯機本体の給水口に差込み、ホースの他端部を浴槽内にセットすることが行われる。
【０００３】
しかし、上記のホースは内周面を平坦にすることはできるが、通常４〜６ｍにも及ぶ長尺ホースの長さ方向におけるどの部分でも可撓伸縮性が均等であり、特定の長さ部分のみ他の部分と異なる性能を持たせることはできない。また、上記ホースを使用しないときは、リング状に丸めて保管するしか方法がなく嵩張って収納し難い。さらに、ホース端部に別途成形された継手を準備して取付けねばならないといった問題があった。
【０００４】
【発明が解決しようとする課題】
本発明は、前述の問題点に鑑み、内部の流通抵抗をできるだけ小さく維持しながら、使用時の取扱いが容易であるとともに非使用時において嵩張らずに収納でき、また部品点数の少ない給水ホースを提供することを目的とするものである。
【０００５】
【課題を解決するための手段】
本発明は、上記目的を達成するため、給水ホースを押出し樹脂チューブを膨張させて連続成形されるコンジットホースとし、ホース壁をホースの軸線方向に沿って凹部と凸部に交互に形成しかつ前記凹部の内周面をホースの軸線とほぼ平行な平坦面に形成した第１波形部と、ホース壁を伸長状態において断面略三角形状としかつその三角形状の頂部付近を中心として一方の斜辺が他方の斜辺に対して略平行な縮小状態に変化してその状態を保持する第２波形部を含むホースユニットから構成し、このホースユニットを少なくとも２以上一体形成することを手段とするものである。
【０００６】
上記コンジットホースは、ホースユニットの端部に口元部が一体形成され（請求項２）、ホースユニットにおける第１波形部の軸線方向長さ部分が第２波形部の軸線方向長さ部分より大きく形成され（請求項３）、好ましくは第１波形部の軸線方向長さ部分が第２波形部の軸線方向長さ部分より４〜８倍大きく形成される（請求項４）。また、第１波形部の凹部の幅が凸部の幅より広く形成され（請求項５）、第１波形部の波形が螺旋状に形成され（請求項６）、第１波形部の凹部の外周面がジクザグ面に形成される（請求項７）。さらに、洗濯機の給水口に挿入される口元部の直後に第２波形部が形成されたホースユニットを含み（請求項８）、第２波形部は一方の斜辺の長さが他方の斜辺の長さに比して短尺に形成される（請求項９）。
【０００７】
また、本発明は、たとえば風呂水給水ホースを押出し樹脂チューブを膨張させて連続成形されるコンジットホースとし、ホースの主要長さ部分を、ホース壁をホースの軸線方向に沿って螺旋状の凹部と凸部に交互に形成しかつ前記凹部の内周面をホースの軸線とほぼ平行な平坦面に形成した螺旋波形部にて構成し、前記螺旋波形部の凹部の幅を凸部の幅より広く形成し、かつ前記凹部の外周面をジクザグ面に形成したものである（請求項１０）。好ましくは、前記螺旋波形部がホース全長の７０％以上の長さ部分を占めるものである（請求項１１）。
【０００８】
【発明の実施の形態】
以下、本発明を具体化した実施形態を図面を参照して説明する。
【０００９】
本発明に係る給水ホースは、基本的には図１に示す概略成形装置により押出し樹脂チューブを膨張させて連続成形するもので、ポリエチレン、ポリプロピレン等のオレフィン系樹脂からなる当業界でコンジットホースと呼ばれるものである。すなわち、押出機のノズル５０から溶融状態のチューブが、相対する金型ユニットがそれぞれクローラベルト状に連結され形成された一対の成形ユニット５１，５１内に押出され、同時にチューブ内部に加圧空気がブローされて金型ユニットの成形面に密着し、その後冷却硬化して蛇腹状のホースＨが連続成形される。なお、チューブの内部に加圧空気をブローする代わりに、チューブを外部から吸引するバキューム成形によっても同様に成形することができる。
【００１０】
図２は、本発明の実施例に係るホースＨの構成単位となるホースユニット１の全体構造を表した図である。ホースユニット１は、その全長（８００ｍｍ）のうちＡの長さを占める第１波形部１０と、Ｂの長さを占める第２波形部２０と、両端の略ストレート状の口元部３０が一体に形成されている。本実施例の好ましい例として、Ａの長さを６００ｍｍ、Ｂの長さ１００ｍｍとし、Ａ／Ｂを６倍にしてある。
【００１１】
図３は第１波形部１０の部分断面側面図、図４はホース壁のみの拡大断面図で、ホース壁は螺旋状の凸部１１と凹部１３が交互に形成された螺旋波形状であり、凹部１３の内周面１３ａは略直線状でホース軸線とほぼ平行な平坦面に、外周面１３ｂはジグザク面に形成されている。本実施例の好ましい例として、凹部１３の幅Ｓを４ｍｍ、凸部１１の幅Ｔを２．５ｍｍとし、Ｓ＞Ｔの関係により凸部１１内側の螺旋溝１２を小さくしてある。
【００１２】
図５は、第２波形部２０の部分断面拡大図で、ホース壁は環状の凹凸波形に形成され、その断面形状が三角形状で、頂部２１を中心として一方の傾斜壁２２を長尺に、他方の傾斜壁２３を短尺に形成してある。そして、ホース成形時には図５のとおり伸張姿勢として形成され、自然状態においてこの伸張姿勢を保持するが、軸線方向に外力を加えると図６に示すように、短尺とした右側傾斜壁２３が長尺とした左側傾斜壁２２に対して略平行な縮小姿勢に変形し、かつこの縮小姿勢を自己保持するものである。
【００１３】
口元部３０，３０は、その一方が主に洗濯機本体の給水口への接続部を構成するもので第２波形部２０から端部方向に向かって連続形成され、他方は第１波形部１０から連続して形成される。この他方の口元部３０には、次に述べるように、第２のホースユニットが図２で点線で示すように直列的に連続形成されることになる。
【００１４】
図７は、上記のホースユニット１を５ユニット連続形成して１本の給水ホースＨにしたもので、その非使用時の収納形態を示している。この収納形態では、第１のホースユニット１の主要長さを占める第１波形部１０を湾曲させずに直線状に保ち、その第２波形部２０を略１８０度に折り曲げかつ自己保持させて、これに続く第２のホースユニット１を方向転換し、その第１波形部１０も湾曲させずに直線状に保ち、これに続くホースユニットも以後同様にしてこれらの第１波形部１０，１０……を相互に略平行状態にして収納する。
【００１５】
図８は、洗濯機本体４０に浴槽４１の水を吸い上げて供給する給水ホースＨの使用例を示し、ホースＨ一端のホースユニット１の口元部３０を洗濯機本体の給水口（図示せず）に差し込み、第２波形部２０を略直角に屈曲固定させて、ホースＨの他端を浴槽に沈める。この他端には必要に応じてストレーナを取付けてもよい。
【００１６】
本実施例は上記の構成により次の利点が得られる。
（１）第１波形部１０の凹部内周面を平坦面にしたので通水抵抗を小さく維持できる。特に、第１波形部１０のホースユニット１に占める長さＡが第２波形部の長さＢより数倍大きい場合や、第１波形部１０の凹部が凸部に比して広幅の場合には、流通抵抗を極力小さく抑制できる。
（２）ホースユニット１に伸張姿勢と縮小姿勢との両姿勢で自己姿勢保持できる性能をもつ第２波形部２０を第１波形部と併有させたので使い勝手がよく、特に長尺のホースを嵩張らずに収納できる形態に折り曲げることができる。
（３）洗濯機本体との接続には端部に一体形成された口元部３０を利用することにより、別途接続のための部品が不要となる。また、口元部３０の直後に第２波形部２０を形成した場合には、ホース端部を所望の角度に屈曲固定させて配管することができる。
（４）第１波形部１０を螺旋状の波形にしたときは、環状の波形に比して凸部内側の螺旋溝に通水が残留することが少ない。
（５）第１波形部１０の凹部外周面をジグザク面にしたときは、成形上凹部内周面を平坦面に形成しやすいほか、屈曲時の耐変形力を向上できる。
【００１７】
なお、本発明にかかるコンジットホースは前記実施例に限定されるものでなく、その要旨の範囲で種々に変更することができる。例えば、第１波形部の波形は環状でもよく、第２波形部は、伸張姿勢と縮小姿勢との両姿勢で自己姿勢保持できる公知の構造を採用でき、その波形を螺旋状にしてもよい。また、コンジットホースの用途は限定されず、給水ホース以外の用途に使用してもよい。
【００１８】
【発明の効果】
本発明によれば、凹部と凸部が交互に形成される基本構造のコンジットホースでありながら、流体抵抗を可及的に増大させることなく、コンジットホースの特質を有効に利用することにより、他物との接続の容易性を確保して部品点数を削減し、またホースを自由に屈曲固定できる程度が高いので使い回しがよく、収納も嵩張らず保管スペースを節減することができる。
【図面の簡単な説明】
【図１】コンジットホースの成形装置概略図。
【図２】ホースユニットの全体側面図。
【図３】第１波形部の部分断面側面図。
【図４】第１波形部ホース壁の拡大断面図。
【図５】第２波形部の伸張姿勢における部分断面拡大図。
【図６】第２波形部の収縮姿勢における部分断面拡大図。
【図７】コンジットホースの収納形態を示す全体側面図。
【図８】風呂水給水ホースの使用状態を示す図。
【符号の説明】
Ｈ　コンジットホース
１　ホースユニット
１０　第１波形部
１１　凸部
１２　螺旋溝
１３　凹部
２０　第２波形部
２１　頂部
２２　左傾斜壁
２３　右傾斜壁
３０　口元部
４０　洗濯機本体
４１　浴槽
５０　押出機ノズル
５１，５１　成形ユニット[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a so-called conduit hose, and more particularly to a bath water supply hose connected to a washing machine main body for performing washing using bath water.
[0002]
[Prior art]
Conventionally, a synthetic resin flexible hose has been used as a bath water supply hose. For example, as disclosed in Japanese Patent Application Laid-Open No. H11-104395, a helical reinforcement made of a hard synthetic resin is attached to a tube made of a soft synthetic resin. Things are known. When supplying bath water to the washing machine, a joint attached to one end of the hose is inserted into a water supply port of the washing machine main body, and the other end of the hose is set in a bathtub.
[0003]
However, the above-mentioned hose can make the inner peripheral surface flat, but the flexible hose has uniform flexibility and elasticity at any part in the length direction of the long hose which usually extends to 4 to 6 m, and has a specific length. Only the other parts cannot have different performance. In addition, when the hose is not used, the only option is to store it in a ring shape, and it is bulky and difficult to store. Further, there is a problem that a separately formed joint must be prepared and attached to the end of the hose.
[0004]
[Problems to be solved by the invention]
In view of the above problems, the present invention provides a water supply hose that is easy to handle at the time of use, can be stored without bulk when not in use, and has a small number of parts, while keeping the internal flow resistance as small as possible. It is intended to do so.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a conduit hose which is formed by continuously extruding a water supply hose by expanding a resin tube, forming a hose wall alternately in a concave portion and a convex portion along the axial direction of the hose, and A first corrugated portion in which the inner peripheral surface of the concave portion is formed as a flat surface substantially parallel to the axis of the hose, and a substantially triangular cross section when the hose wall is in an extended state, and one hypotenuse is the other centered on the vicinity of the top of the triangular shape And a hose unit including a second corrugated portion that changes to a reduced state substantially parallel to the hypotenuse and maintains the reduced state, and at least two or more of the hose units are integrally formed.
[0006]
In the conduit hose, a mouth portion is integrally formed at an end of the hose unit (Claim 2), and an axial length portion of the first corrugated portion of the hose unit is formed larger than an axial length portion of the second corrugated portion. Preferably, the axial length of the first corrugated portion is formed to be 4 to 8 times larger than the axial length of the second corrugated portion (claim 4). Further, the width of the concave portion of the first corrugated portion is formed wider than the width of the convex portion (Claim 5), and the waveform of the first corrugated portion is formed spirally (Claim 6). The outer peripheral surface is formed in a zigzag surface (claim 7). Furthermore, the second corrugated portion includes a hose unit having a second corrugated portion formed immediately after the mouth portion inserted into the water supply port of the washing machine (claim 8), wherein the length of one hypotenuse is equal to that of the other hypotenuse. It is formed shorter than the length (claim 9).
[0007]
Further, the present invention provides, for example, a conduit hose formed by continuously extruding a bath water supply hose by expanding a resin tube, and forming a main length portion of the hose with a spiral recess along a hose axial direction along a hose wall. The spiral corrugated portion is formed alternately on the convex portion and the inner peripheral surface of the concave portion is formed as a flat surface substantially parallel to the axis of the hose, and the width of the concave portion of the spiral corrugated portion is wider than the width of the convex portion. The outer peripheral surface of the recess is formed in a zigzag surface. Preferably, the spiral corrugated portion occupies a length of 70% or more of the entire length of the hose.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0009]
The water supply hose according to the present invention is basically a continuous hose formed by expanding an extruded resin tube by a schematic molding device shown in FIG. 1, and is called a conduit hose in the art made of an olefin resin such as polyethylene and polypropylene. Things. That is, a tube in a molten state is extruded from a nozzle 50 of an extruder into a pair of molding units 51, 51 formed by connecting opposing mold units in a crawler belt shape, and simultaneously pressurized air is formed inside the tube. It is blown and closely adheres to the molding surface of the mold unit, and then cooled and hardened to continuously form a bellows-shaped hose H. In addition, instead of blowing pressurized air into the inside of the tube, the tube can be similarly formed by vacuum forming in which the tube is sucked from the outside.
[0010]
FIG. 2 is a diagram illustrating an overall structure of a hose unit 1 which is a constituent unit of the hose H according to the embodiment of the present invention. In the hose unit 1, the first corrugated portion 10 occupying the length A of the entire length (800 mm), the second corrugated portion 20 occupying the length B, and the substantially straight mouth portions 30 at both ends are integrally formed. Is formed. As a preferred example of the present embodiment, the length of A is set to 600 mm, the length of B is set to 100 mm, and A / B is increased six times.
[0011]
FIG. 3 is a partial sectional side view of the first corrugated portion 10, and FIG. 4 is an enlarged sectional view of only the hose wall. The hose wall has a spiral wave shape in which spiral convex portions 11 and concave portions 13 are alternately formed. The inner peripheral surface 13a of the concave portion 13 is formed in a substantially linear flat surface substantially parallel to the hose axis, and the outer peripheral surface 13b is formed in a zigzag surface. As a preferred example of the present embodiment, the width S of the concave portion 13 is set to 4 mm, the width T of the convex portion 11 is set to 2.5 mm, and the spiral groove 12 inside the convex portion 11 is reduced according to the relationship of S> T.
[0012]
FIG. 5 is an enlarged partial cross-sectional view of the second corrugated portion 20. The hose wall is formed in an annular uneven waveform, the cross-sectional shape is triangular, and one inclined wall 22 is elongated with the top 21 as a center. The other inclined wall 23 is formed short. When the hose is formed, it is formed in a stretched posture as shown in FIG. 5, and this stretched posture is maintained in a natural state. However, when an external force is applied in the axial direction, as shown in FIG. Is deformed into a reduced posture substantially parallel to the left inclined wall 22 and the reduced posture is held by itself.
[0013]
One of the mouth portions 30, 30 mainly constitutes a connection portion to a water supply port of the washing machine main body, and is continuously formed from the second corrugated portion 20 toward the end portion, and the other is the first corrugated portion 10. Formed continuously. As will be described below, a second hose unit is continuously formed in series at the other mouth portion 30 as shown by a dotted line in FIG.
[0014]
FIG. 7 shows a configuration in which five units of the above-mentioned hose unit 1 are continuously formed into one water supply hose H, and shows a storage form when the hose is not used. In this storage mode, the first corrugated portion 10 occupying the main length of the first hose unit 1 is kept straight without being curved, and the second corrugated portion 20 is bent at approximately 180 degrees and self-held, The direction of the subsequent second hose unit 1 is changed so that its first corrugated portion 10 is also kept straight without being curved, and the subsequent hose unit is similarly operated on these first corrugated portions 10, 10. Are stored substantially parallel to each other.
[0015]
FIG. 8 shows an example of use of a water supply hose H for sucking up and supplying water from a bathtub 41 to the washing machine main body 40. The mouth portion 30 of the hose unit 1 at one end of the hose H is connected to a water supply port (not shown) of the washing machine main body. And the second corrugated portion 20 is bent and fixed at a substantially right angle, and the other end of the hose H is sunk in the bathtub. A strainer may be attached to this other end as needed.
[0016]
The present embodiment has the following advantages by the above configuration.
(1) Since the inner peripheral surface of the concave portion of the first corrugated portion 10 is flat, the water flow resistance can be kept low. In particular, when the length A of the first corrugated portion 10 occupying the hose unit 1 is several times larger than the length B of the second corrugated portion, or when the concave portion of the first corrugated portion 10 is wider than the convex portion. Can minimize the flow resistance.
(2) The hose unit 1 is provided with the second corrugated portion 20 having the capability of maintaining its own posture in both the extended posture and the contracted posture together with the first corrugated portion. It can be folded into a form that can be stored without being bulky.
(3) The connection with the main body of the washing machine uses the mouth portion 30 integrally formed at the end, so that a separate connection component is not required. Further, when the second corrugated portion 20 is formed immediately after the mouth portion 30, the hose end can be bent and fixed at a desired angle for piping.
(4) When the first corrugated portion 10 is formed into a spiral waveform, water is less likely to remain in the spiral groove inside the convex portion than in the annular waveform.
(5) When the outer peripheral surface of the concave portion of the first corrugated portion 10 is formed into a zigzag surface, the inner peripheral surface of the concave portion can be easily formed into a flat surface, and the deformation resistance during bending can be improved.
[0017]
The conduit hose according to the present invention is not limited to the above-described embodiment, and can be variously changed within the scope of the gist. For example, the waveform of the first corrugated portion may be annular, and the second corrugated portion may have a known structure capable of maintaining its own posture in both the extended posture and the contracted posture, and may have a spiral shape. The use of the conduit hose is not limited, and the conduit hose may be used for purposes other than the water supply hose.
[0018]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, although it is a conduit hose of a basic structure in which a recessed part and a convex part are formed alternately, without increasing the fluid resistance as much as possible, by effectively utilizing the characteristics of the conduit hose, The ease of connection with an object is reduced, the number of parts is reduced, and the degree to which the hose can be freely bent and fixed is high, so that the hose is easy to use and the storage space is not bulky and the storage space can be saved.
[Brief description of the drawings]
FIG. 1 is a schematic view of a conduit hose forming apparatus.
FIG. 2 is an overall side view of the hose unit.
FIG. 3 is a partial cross-sectional side view of a first corrugated portion.
FIG. 4 is an enlarged sectional view of a first corrugated portion hose wall.
FIG. 5 is an enlarged partial cross-sectional view of a second corrugated portion in an extended posture.
FIG. 6 is an enlarged partial cross-sectional view of a second corrugated portion in a contracted posture.
FIG. 7 is an overall side view showing a storage state of the conduit hose.
FIG. 8 is a diagram showing a use state of a bath water supply hose.
[Explanation of symbols]
H Conduit hose 1 Hose unit 10 First corrugated part 11 Convex part 12 Spiral groove 13 Concave part 20 Second corrugated part 21 Top part 22 Left inclined wall 23 Right inclined wall 30 Mouth part 40 Washing machine main body 41 Bathtub 50 Extruder nozzle 51, 51 Molding unit

Claims

押出し樹脂チューブを膨張させて連続成形されるホースであって、ホース壁をホースの軸線方向に沿って凹部と凸部に交互に形成しかつ前記凹部の内周面をホースの軸線とほぼ平行な平坦面に形成した第１波形部と、ホース壁を伸長状態において断面略三角形状としかつその三角形状の頂部付近を中心として一方の斜辺が他方の斜辺に対して略平行な縮小状態に変化してその状態を保持する第２波形部を含むホースユニットからなり、このホースユニットが少なくとも２以上一体形成されていることを特徴とするコンジットホース。A hose which is continuously molded by expanding an extruded resin tube, wherein a hose wall is alternately formed in a concave portion and a convex portion along an axial direction of the hose, and an inner peripheral surface of the concave portion is substantially parallel to an axis of the hose. The first corrugated portion formed on the flat surface and the hose wall have a substantially triangular cross section in an extended state, and one hypotenuse changes to a reduced state in which one hypotenuse is substantially parallel to the other hypotenuse centering around the top of the triangular shape. A conduit hose comprising a hose unit including a second corrugated portion for maintaining the above-mentioned state, wherein at least two or more of the hose units are integrally formed.

ホースユニットの端部に口元部が一体形成されている請求項１に記載のコンジットホース。The conduit hose according to claim 1, wherein a mouth portion is integrally formed at an end of the hose unit.

ホースユニットにおける第１波形部の軸線方向長さ部分が第２波形部の軸線方向長さ部分より大きく形成されている請求項１に記載のコンジットホース。The conduit hose according to claim 1, wherein an axial length of the first corrugated portion of the hose unit is formed larger than an axial length of the second corrugated portion.

第１波形部の軸線方向長さ部分が第２波形部の軸線方向長さ部分より４〜８倍大きく形成されている請求項３に記載のコンジットホース。The conduit hose according to claim 3, wherein an axial length of the first corrugated portion is formed 4 to 8 times larger than an axial length of the second corrugated portion.

第１波形部の凹部の幅が凸部の幅より広く形成されている請求項１に記載のコンジットホース。The conduit hose according to claim 1, wherein the width of the concave portion of the first corrugated portion is formed wider than the width of the convex portion.

第１波形部の波形が螺旋状に形成されている請求項１に記載のコンジットホース。The conduit hose according to claim 1, wherein the waveform of the first waveform portion is formed in a spiral shape.

第１波形部の凹部の外周面がジクザグ面に形成されている請求項１に記載のコンジットホース。The conduit hose according to claim 1, wherein an outer peripheral surface of the concave portion of the first corrugated portion is formed in a zigzag surface.

洗濯機の給水口に挿入される口元部の直後に第２波形部が形成されたホースユニットを含む請求項２に記載のコンジットホース。The conduit hose according to claim 2, further comprising a hose unit having a second corrugated portion formed immediately after a mouth portion inserted into a water supply port of the washing machine.

第２波形部は一方の斜辺の長さが他方の斜辺の長さに比して短尺に形成されている請求項１に記載のコンジットホース。The conduit hose according to claim 1, wherein the length of one oblique side of the second corrugated portion is shorter than the length of the other oblique side.

押出し樹脂チューブを膨張させて連続成形されるホースであって、ホース壁をホースの軸線方向に沿って螺旋状の凹部と凸部に交互に形成しかつ前記凹部の内周面をホースの軸線とほぼ平行な平坦面に形成した螺旋波形部がホースの主要長さ部分を占め、かつ前記螺旋波形部の凹部の幅が凸部の幅より広く形成されるとともに、前記凹部の外周面がジクザグ面に形成されていることを特徴とするコンジットホース。A hose which is continuously molded by expanding an extruded resin tube, wherein a hose wall is alternately formed in a spiral concave portion and a convex portion along an axial direction of the hose, and an inner peripheral surface of the concave portion is defined by an axis of the hose. A spiral corrugated portion formed on a substantially parallel flat surface occupies the main length of the hose, and the width of the concave portion of the spiral corrugated portion is formed wider than the width of the convex portion, and the outer peripheral surface of the concave portion has a zigzag surface. A conduit hose characterized by being formed in.

螺旋波形部がホース全長の７０％以上の長さ部分を占める請求項１０に記載のコンジットホース。The conduit hose according to claim 10, wherein the spiral corrugated portion occupies a length of 70% or more of the entire length of the hose.