JP2015055291A - Pipe body - Google Patents

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Publication number
JP2015055291A
JP2015055291A JP2013188731A JP2013188731A JP2015055291A JP 2015055291 A JP2015055291 A JP 2015055291A JP 2013188731 A JP2013188731 A JP 2013188731A JP 2013188731 A JP2013188731 A JP 2013188731A JP 2015055291 A JP2015055291 A JP 2015055291A
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Japan
Prior art keywords
wear
reinforcing wire
pipe body
tube
pipe
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Granted
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JP2013188731A
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JP2015055291A5 (en
JP6161200B2 (en
Inventor
得能　真一
Shinichi Tokuno
真一 得能
貴彦 中瀬
Takahiko Nakase
貴彦 中瀬
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Toyox Co Ltd
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Toyox Co Ltd
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Priority to JP2013188731A priority Critical patent/JP6161200B2/en
Priority to CN201480049696.5A priority patent/CN105518362B/en
Priority to MYPI2016700678A priority patent/MY180217A/en
Priority to PCT/JP2014/072561 priority patent/WO2015037448A1/en
Publication of JP2015055291A publication Critical patent/JP2015055291A/en
Priority to HK16107671.3A priority patent/HK1219772A1/en
Publication of JP2015055291A5 publication Critical patent/JP2015055291A5/ja
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Publication of JP6161200B2 publication Critical patent/JP6161200B2/en
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    • 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
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • 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
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
    • 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
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/10—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements not embedded in the wall
    • 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
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
    • F16L11/112—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements embedded in the wall
    • 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
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
    • F16L11/115—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements not embedded in the wall
    • 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
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
    • 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
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/60—Identification or marking

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a pipe body capable of visually observing a wear state of a pipe body inner face and a flow state in the pipe body with a simple structure.SOLUTION: A linear or belt-like colored wear detection part 2 partially covering one circumferential part of a transparent pipe body 1 is embedded in the pipe body 1 on an inner side than an intermediate thickness direction position across its entire length. Thereby, the wear detection part 2 is scraped according to a wear degree of an inner face 1a of the pipe body 1, and a scraping state of the wear detection part 2 can be visualized from outside of the pipe body 1 through a first transparent portion 11 of the pipe body 1 arranged outside the wear detection part 2. Inside of the pipe body 1 can be visualized from the outside of the pipe body 1 through a second transparent portion 12 of the pipe body 1 at which the linear or belt-like wear detection part 2 is not arranged.

Description

本発明は、粒体や粉体などの固形物を圧縮空気などの流体によって輸送する際、又は粒体や粉体が含まれた流動物を輸送する際などに用いられる、ホースやチューブなどからなる管体に関する。   The present invention is a hose, tube, etc. used when transporting solids such as granules and powders with a fluid such as compressed air or when transporting fluids containing granules and powders. Related to the tube.

従来、この種の管体として、黄系統の着色を施した透光性を有する外側層と、この外側層とは色の異なる青系統又は赤系統の着色を施した透光性を有する内側層とを積層してなる合成樹脂製のホース壁を備え、前記ホース壁の外側層の外周面に、ホース径方向の内側半部をホース中心に向けて先細り状とした補強芯をホース軸方向に間隔をあけて螺旋巻回してなり、固形物や流動物の接触に伴う内側層の摩耗度合に応じて、前記ホース壁の色が緑色から黄色か又は橙色から黄色に徐々に変化するようにした摩耗検知機能を有する輸送用ホースがある（例えば、特許文献１参照）。   Conventionally, as this type of tubular body, a translucent outer layer colored with a yellow color and a translucent inner layer colored with a blue color or a red color different from the outer layer. A hose wall made of synthetic resin, and a reinforcing core tapered toward the hose wall with the inner half of the hose radial direction facing the hose center, in the hose axial direction. The hose wall color is gradually changed from green to yellow or from orange to yellow depending on the degree of wear of the inner layer due to contact with solids and fluids. There is a transportation hose having a wear detection function (for example, see Patent Document 1).

特開２０１０−１５９８２２号公報JP 2010-159822 A

しかし乍ら、このような従来の管体では、外側層及び内側層が透光性（光が透過する性質）を有しているものの、外側層及び内側層の全体が着色されるから、それら自体を透過する光が拡散されて透過率が低くなってしまった。そのため、ホース内を通る固形物や流動物などの流れ状況を、ホースの外から目視で明確に認識できず、詰まり事故などが発生し易いという問題があった。   However, in such a conventional tubular body, although the outer layer and the inner layer have translucency (property of transmitting light), the entire outer layer and inner layer are colored. The light passing through itself was diffused and the transmittance was lowered. For this reason, there is a problem that the flow state of solids and fluids passing through the hose cannot be clearly recognized visually from the outside of the hose, and a clogging accident is likely to occur.

本発明は、このような問題に対処することを課題とするものであり、簡単な構造で管体内面の摩耗状況と管体内の流れ状況を共に目視確認すること、などを目的とするものである。   An object of the present invention is to cope with such problems, and is intended to visually confirm both the wear state of the inner surface of the tubular body and the flow state of the tubular body with a simple structure. is there.

このような目的を達成するために本発明は、摩耗検知機能を有する管体であって、透明材料からなる管本体と、前記管本体の内部に該管本体の全長に亘って設けられた着色材料からなる摩耗検知部と、を備え、前記摩耗検知部は、前記管本体の周方向一部を部分的に覆う線状又は帯状に形成され、前記管本体において厚み方向中間位置よりも内側に埋設したことを特徴とする。   In order to achieve such an object, the present invention provides a tube body having a wear detection function, a tube body made of a transparent material, and a coloring provided in the tube body over the entire length of the tube body. A wear detecting portion made of a material, and the wear detecting portion is formed in a linear shape or a belt shape that partially covers a part of the pipe body in the circumferential direction, and is inside the thickness direction intermediate position in the tube main body. It is characterized by being buried.

前述した特徴を有する本発明は、透明な管本体の内部にその全長に亘って、管本体の周方向一部を部分的に覆う線状又は帯状の着色された摩耗検知部を、管本体において厚み方向中間位置よりも内側に埋設することにより、管本体の内面の摩耗度合に応じて摩耗検知部が削れ、管本体において摩耗検知部の外側に配置される第一透明部位を透して、管本体の外から摩耗検知部の削れ状況が透視可能となる。これと同時に、管本体において線状又は帯状の摩耗検知部が配置されない第二透明部位を透して、管本体の外から管本体の内部が透視可能となる。
したがって、簡単な構造で管本体の内面の摩耗状況と管本体内を流れる輸送物の流れ状況を共に目視確認することができる。
その結果、外側層及び内側層が透光性を有するものの外側層及び内側層の全体が着色される従来のものに比べ、固形物や流動物などの輸送による管本体の内面の摩耗寿命を識別でき、管体の交換時期が推測可能になって摩耗による破裂の防止が図れるだけでなく、管本体内における輸送物の詰まり事故などを未然に防ぐことができて、安全性の向上が図れる。
さらに、異色の摩耗検知部がそれぞれ埋設された複数種類の管本体を用意し、用途や機能などに応じて摩耗検知部の色を変えることにより、摩耗検知部の色が標識となって管体を簡単に且つ低コストで区別することができる。 According to the present invention having the above-described features, a linear or belt-shaped colored wear detection portion that partially covers the circumferential portion of the tube body is provided in the tube body over the entire length of the transparent tube body. By embedding inside the intermediate position in the thickness direction, the wear detection part is scraped according to the degree of wear of the inner surface of the pipe body, and through the first transparent part arranged outside the wear detection part in the pipe body, It is possible to see through from the outside of the tube main body the scraping state of the wear detector. At the same time, the inside of the tube main body can be seen through from the outside of the tube main body through the second transparent portion where the linear or belt-shaped wear detection portion is not disposed in the tube main body.
Therefore, it is possible to visually confirm both the wear state of the inner surface of the pipe body and the flow state of the transported material flowing in the pipe body with a simple structure.
As a result, the wear life of the inner surface of the tube body due to transportation of solids and fluids is identified compared to the conventional one where the outer layer and inner layer are translucent, but the entire outer layer and inner layer are colored. In addition, it is possible to estimate the replacement time of the tube body and not only prevent the explosion due to wear, but also prevent the accident of clogging of the transported material in the tube body, thereby improving the safety.
Furthermore, by preparing multiple types of pipe bodies with different colored wear detectors embedded, and changing the color of the wear detector according to the application and function, the color of the wear detector becomes a marker and the tube body Can be distinguished easily and at low cost.

本発明の実施形態に係る管体の全体構成を示す説明図であり、（ａ）が縦断正面図、（ｂ）が斜視図である。It is explanatory drawing which shows the whole structure of the tubular body which concerns on embodiment of this invention, (a) is a vertical front view, (b) is a perspective view. 管体の変形例を示す説明図であり、（ａ）が縦断正面図、（ｂ）が斜視図である。It is explanatory drawing which shows the modification of a tubular body, (a) is a vertical front view, (b) is a perspective view. 管体の変形例を示す説明図であり、（ａ）が縦断正面図、（ｂ）が斜視図である。It is explanatory drawing which shows the modification of a tubular body, (a) is a vertical front view, (b) is a perspective view. 管体の変形例を示す説明図であり、（ａ）が縦断側面図、（ｂ）が斜視図である。It is explanatory drawing which shows the modification of a tubular body, (a) is a vertical side view, (b) is a perspective view. 本発明の他の実施例に係る管体の全体構成を示す説明図であり、（ａ）が図１の変形例を示す縦断正面図、（ｂ）が図２の変形例を示す縦断正面図である。It is explanatory drawing which shows the whole structure of the tubular body which concerns on the other Example of this invention, (a) is a longitudinal front view which shows the modification of FIG. 1, (b) is a longitudinal front view which shows the modification of FIG. It is. 本発明の他の実施例に係る管体の全体構成を示す説明図であり、（ａ）が図１の変形例を示す縦断正面図、（ｂ）が図２の変形例を示す縦断正面図、（ｃ）が図３の変形例を示す縦断正面図である。It is explanatory drawing which shows the whole structure of the tubular body which concerns on the other Example of this invention, (a) is a longitudinal front view which shows the modification of FIG. 1, (b) is a longitudinal front view which shows the modification of FIG. (C) is a vertical front view which shows the modification of FIG.

以下、本発明の実施形態を図面に基づいて詳細に説明する。
本発明の実施形態に係る管体Ａは、粒体や粉体などの固形物を圧縮空気などの流体によって輸送するため、又は粒体や粉体が含まれた流動物を輸送するためなどに用いられるホースやチューブなどからなり、摩耗検知機能を有している。
詳しく説明すると、本発明の実施形態に係る管体Ａは、図１〜図６に示すように、透明材料からなる管本体１と、管本体１の内部に管本体１の全長に亘って設けられた着色材料からなる摩耗検知部２と、を主要な構成要素として備えている。
ここで、透明材料とは、無色透明なものに限らず、管本体１の内部に設けられた着色材料の摩耗検知部２を、管本体１の外から目視で確認可能であれば、透明に比べて透明度が低い半透明や有色透明も含まれる。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The tubular body A according to the embodiment of the present invention is used for transporting solids such as granules and powders by a fluid such as compressed air, or for transporting fluids containing the granules and powders, etc. It consists of hoses and tubes used, and has a wear detection function.
More specifically, the tubular body A according to the embodiment of the present invention is provided over the entire length of the tube body 1 inside the tube body 1 and the tube body 1 as shown in FIGS. And a wear detector 2 made of a colored material.
Here, the transparent material is not limited to a colorless and transparent material, but can be transparent if the wear detector 2 of the colored material provided inside the tube body 1 can be visually confirmed from the outside of the tube body 1. Also included are translucent and colored transparency, which are less transparent.

管本体１は、例えば塩化ビニル樹脂などの軟質合成樹脂やシリコーンゴムやその他のゴムなどの透明や半透明又は有色透明の軟質材料で可撓性を有する管状に形成され、その内面１ａの近傍に後述する摩耗検知部２を、外面１ｂから離れるように埋設している。
管本体１の構造は、図１及び図２に示されるような、複数の層を径方向へ積層した構造でもよいし、図３及び図４に示されるような、単層構造であってもよい。
さらに必要に応じて、管本体１には、補強手段を部分的に設けることで、該補強手段を含んだ管本体１の全体か、又は管本体１において該補強手段を除いた大部分が透視可能となるように構成することが好ましい。
この補強手段には、例えばポリエステルやナイロン（登録商標）などの透明な合成樹脂で形成されたモノフィラメント（monofilament:単繊維）やマルチフィラメント（multifilament）などからなる補強線材３、複数本か又は単数本のブレードからなる補強糸（図示しない）などがある。さらに補強線材３には、管本体１と同質系の塩化ビニルなどの不透明又は透明な硬質合成樹脂からなるものや、ステンレスなどの金属線などからなるものも含まれる。
補強線材３の形状としては、断面円形、断面楕円形、断面略矩形、径方向外側の先端が断面円弧状の断面かまぼこ形や断面略台形など、種々な形状のものを用いることが可能である。 The tube body 1 is formed of a flexible synthetic resin such as vinyl chloride resin, a transparent, translucent or colored transparent soft material such as silicone rubber or other rubber, and has a flexible tubular shape, and is located in the vicinity of the inner surface 1a. A wear detector 2 described later is embedded away from the outer surface 1b.
The structure of the tube body 1 may be a structure in which a plurality of layers are laminated in the radial direction as shown in FIGS. 1 and 2, or may be a single layer structure as shown in FIGS. Good.
Further, if necessary, the tube body 1 is partially provided with reinforcing means, so that the entire tube body 1 including the reinforcing means or most of the tube body 1 excluding the reinforcing means can be seen through. It is preferable that the configuration be made possible.
The reinforcing means includes, for example, a reinforcing wire 3 made of a transparent synthetic resin such as polyester or nylon (registered trademark), a monofilament (monofilament), a multifilament, etc. There is a reinforcing thread (not shown) made of a blade of the above. Further, the reinforcing wire 3 includes those made of an opaque or transparent hard synthetic resin such as vinyl chloride, which is homogeneous with the tube body 1, and those made of a metal wire such as stainless steel.
As the shape of the reinforcing wire 3, it is possible to use various shapes such as a circular cross-section, a cross-sectional ellipse, a substantially rectangular cross-section, a cross-sectionally round shape with a radially outer tip having a circular arc shape, and a substantially trapezoidal cross-section. .

管本体１の具体例として、図１（ａ）（ｂ）に示される場合には、管本体１を構成する内層１ｃと外層１ｄの間に、透明材料（透明樹脂）からなる断面円形の補強線材３を螺旋状に埋設することで、外層１ｄの一部が螺旋状に突出するように一体化されている。
図２（ａ）（ｂ）に示される場合には、内層１ｃと外層１ｄの間に、透明樹脂からなる断面円形の補強線材３を螺旋状に埋設することで、外層１ｄが平滑面となるように一体化されている。
図３（ａ）（ｂ）に示される場合には、単層構造又は積層構造に形成された管本体１の外面１ｂに、透明樹脂からなる径方向外側の先端が断面円弧状の断面かまぼこ形や断面略台形の補強線材３を螺旋状に突設することで一体化されている。
図１（ａ）（ｂ）〜図３（ａ）（ｂ）に示される例の管本体１を製造する方法としては、特公昭５０−３１１９８号公報に記載されるような、押出機から連続的に押し出された溶融又は半溶融状態の軟質な合成樹脂からなる帯状体と硬質の合成樹脂線条体を、片持ち状態で支持されたスパイラルシャフトの外表面に対し螺旋状に巻回しながら、該帯状体の隣接する面相互を接着する製法が利用できる。
図４（ａ）（ｂ）の場合には、単層構造又は積層構造の管本体１に補強線材３が設けられない例を示している。
また、その他の例として図示しないが、管本体１を三層以上の構造に代えたり、透明樹脂からなる補強線材３の断面形状を他の形状に代えたり、透明樹脂からなる補強線材３に代えて金属線からなる補強線材を設けたり、透明樹脂製の補強線材３や金属製の補強線材と関係なく複数本の補強糸を螺旋状に巻き付けて網状に設けるなど、変更することも可能である。 As a specific example of the tube body 1, in the case shown in FIGS. 1A and 1B, a circular cross section reinforcement made of a transparent material (transparent resin) is provided between the inner layer 1c and the outer layer 1d constituting the tube body 1. By burying the wire 3 in a spiral shape, a part of the outer layer 1d is integrated so as to protrude in a spiral shape.
In the case shown in FIGS. 2 (a) and 2 (b), the outer layer 1d becomes a smooth surface by embedding a reinforcing wire 3 having a circular cross section made of a transparent resin in a spiral shape between the inner layer 1c and the outer layer 1d. So that they are integrated.
In the case shown in FIGS. 3A and 3B, the outer surface 1b of the tube body 1 formed in a single layer structure or a laminated structure is formed in a cross-section shape having a circular arc shape with a radially outer tip made of a transparent resin. In addition, the reinforcing wire 3 having a substantially trapezoidal cross section is integrated by protruding in a spiral shape.
As a method of manufacturing the pipe body 1 of the example shown in FIGS. 1 (a), 1 (b) to 3 (a), (b), continuous from an extruder as described in Japanese Patent Publication No. 50-31198. While spirally winding a belt-shaped body made of a soft synthetic resin in a molten or semi-molten state extruded and a hard synthetic resin linear body around the outer surface of a spiral shaft supported in a cantilever state, A production method for adhering adjacent surfaces of the belt-like body can be used.
4A and 4B show an example in which the reinforcing wire 3 is not provided on the tube body 1 having a single-layer structure or a laminated structure.
Although not shown as another example, the tube body 1 is replaced with a structure having three or more layers, the cross-sectional shape of the reinforcing wire 3 made of transparent resin is changed to another shape, or the reinforcing wire 3 made of transparent resin is replaced. It is also possible to change such as providing a reinforcing wire made of a metal wire, or wrapping a plurality of reinforcing threads in a spiral shape regardless of the transparent resin reinforcing wire 3 or the metal reinforcing wire. .

摩耗検知部２は、管本体１と明確に識別可能な、例えば赤色や青色や黄色又はその他の色に着色され、管本体１の周方向一部を部分的に覆う線状又は帯状に形成されている。
摩耗検知部２の材料としては、管本体１の材料や補強線材３の材料と接着性に優れた材料を用いることが好ましい。摩耗検知部２の材料の具体例として、管本体１の材料が塩化ビニル樹脂である場合には、塩化ビニル樹脂と接着性がよく、且つ補強線材３よりも軟らかくて耐摩耗性のあるポリカーボネート系ポリウレタン樹脂などで成形することが好ましい。
また、摩耗検知部２のその他の材料として、管本体１の材料や補強線材３の材料と非接着性の材料を用いることも可能である。
摩耗検知部２の形状としては、断面円形、断面楕円形、断面略矩形など、種々な形状のものを用いることが可能である。
さらに、摩耗検知部２は、管本体１において厚み方向中間位置よりも内側に、管本体１の軸方向へ螺旋状又は直線状に埋設され、管本体１において摩耗検知部２の厚み方向外側に配置される第一透明部位１１を透して、管本体１の外から透視可能するとともに、管本体１において摩耗検知部２が配置されない第二透明部位１２を透して、管本体１の外から管本体１の内部が透視可能となるように配置している。
また、摩耗検知部２の埋設位置は、補強線材３の内部において厚み方向中間位置よりも内側に配置することも可能である。 The wear detection unit 2 is clearly distinguishable from the tube main body 1, for example, is colored in red, blue, yellow, or other colors, and is formed in a linear shape or a belt shape that partially covers a part of the circumferential direction of the tube main body 1. ing.
As a material for the wear detection unit 2, it is preferable to use a material excellent in adhesiveness with the material of the tube main body 1 and the material of the reinforcing wire 3. As a specific example of the material of the wear detector 2, when the material of the tube body 1 is a vinyl chloride resin, the polycarbonate system has good adhesion to the vinyl chloride resin and is softer than the reinforcing wire 3 and more wear resistant. It is preferable to mold with a polyurethane resin or the like.
Further, as the other material of the wear detector 2, a material that is non-adhesive with the material of the tube body 1 or the material of the reinforcing wire 3 can be used.
As the shape of the wear detection unit 2, various shapes such as a circular cross section, an elliptical cross section, and a substantially rectangular cross section can be used.
Furthermore, the wear detection unit 2 is embedded in the pipe body 1 in a spiral or linear shape in the axial direction of the tube main body 1 on the inner side of the intermediate position in the thickness direction, and on the pipe main body 1 on the outer side in the thickness direction of the wear detection unit 2. Through the first transparent part 11 to be arranged, it is possible to see through from the outside of the pipe body 1, and through the second transparent part 12 in which the wear detector 2 is not arranged in the pipe body 1, Therefore, the inside of the tube body 1 is arranged so as to be seen through.
Further, the burying position of the wear detecting unit 2 can be arranged inside the reinforcing wire 3 inside the intermediate position in the thickness direction.

摩耗検知部２の具体例として、図１（ａ）（ｂ），図２（ａ）（ｂ）及び図３（ａ）（ｂ）に示される場合には、摩耗検知部２が断面楕円形の線状に形成され、この摩耗検知部２を管本体１の内部又は外面１ｂに沿って螺旋状に配置されている。
図４（ａ）（ｂ）の場合には、摩耗検知部２が断面楕円形の線状に形成され、この摩耗検知部２を管本体１の内部に周方向へ複数本所定間隔毎にそれぞれ軸方向へ直線状に配置されている。
また、その他の例として図示しないが、摩耗検知部２の断面形状を他の形状に代えたり、帯状の摩耗検知部２に代えたり、図１（ａ）（ｂ），図２（ａ）（ｂ）及び図３（ａ）（ｂ）に示される螺旋状の摩耗検知部２を軸方向へ延びる直線状の配置に代えたり、図４（ａ）（ｂ）に示される直線状の摩耗検知部２を螺旋状の配置に代えたりなど、変更することも可能である。 As a specific example of the wear detection unit 2, in the case shown in FIGS. 1A, 1B, 2A, 2B, and 3A, 3B, the wear detection unit 2 has an elliptical cross section. The wear detector 2 is arranged in a spiral shape along the inside or the outer surface 1b of the tube body 1.
4 (a) and 4 (b), the wear detector 2 is formed in an elliptical cross section, and a plurality of wear detectors 2 are provided in the pipe body 1 in the circumferential direction at predetermined intervals. It is arranged linearly in the axial direction.
Although not shown as other examples, the cross-sectional shape of the wear detector 2 may be replaced with another shape, or replaced with the belt-shaped wear detector 2, or FIGS. b) and the spiral wear detector 2 shown in FIGS. 3 (a) and 3 (b) may be replaced with a linear arrangement extending in the axial direction, or a linear wear detector shown in FIGS. 4 (a) and 4 (b). It is also possible to change the part 2 by replacing it with a spiral arrangement.

このような本発明の実施形態に係る摩耗検知機能付きの管体Ａによると、透明な管本体１の内部にその全長に亘って、管本体１の周方向一部を部分的に覆う線状又は帯状の着色した摩耗検知部２が、管本体１において厚み方向中間位置よりも内側に埋設されるため、粒体や粉体などの固形物又は粒体や粉体が含まれた流動物を輸送する際に、管本体１の内面１ａが固形物や流動物の接触により、管本体１の内面１ａの摩耗度合に応じて摩耗検知部２が削れる。このような場合には、管本体１において摩耗検知部２の外側に配置される第一透明部位１１を透して、管本体１の外から摩耗検知部２の削れ状況が透視可能となる。
また、これと同時に、管本体１において線状又は帯状の摩耗検知部２が配置されない第二透明部位１２を透して、管本体１の外から管本体１の内部が透視可能となる。
したがって、簡単な構造で管体内面（管本体１の内面１ａ）の摩耗状況と管体内の流れ状況（管本体１内を流れる輸送物の流れ状況）を共に目視確認することができる。
その結果、固形物や流動物などの輸送による管本体１の内面１ａの摩耗寿命を識別でき、管体Ａの交換時期が推測可能になって摩耗による破裂の防止が図れるだけでなく、管本体１内における輸送物の詰まり事故などを未然に防ぐことができて、安全性の向上が図れる。
さらに、異色の摩耗検知部２がそれぞれ埋設された複数種類の管本体１を用意し、用途や機能などに応じて摩耗検知部２の色を変えることにより、摩耗検知部２の色が標識となって管体Ａを簡単に且つ低コストで区別することができる。 According to the tube body A with the wear detection function according to the embodiment of the present invention, a linear shape that partially covers a part of the tube body 1 in the circumferential direction over the entire length of the transparent tube body 1. Alternatively, since the strip-shaped colored wear detector 2 is embedded inside the tube body 1 from the middle position in the thickness direction, a solid substance such as a granule or powder or a fluid containing the granule or powder is used. When transporting, the inner surface 1a of the tube main body 1 is scraped by the contact of the solid or fluid, depending on the degree of wear of the inner surface 1a of the tube main body 1. In such a case, the wear state of the wear detector 2 can be seen through from the outside of the tube body 1 through the first transparent portion 11 disposed outside the wear detector 2 in the tube body 1.
At the same time, the inside of the tube main body 1 can be seen through from the outside of the tube main body 1 through the second transparent portion 12 in which the linear or belt-shaped wear detection unit 2 is not disposed in the tube main body 1.
Therefore, it is possible to visually confirm both the wear state of the inner surface of the tube (the inner surface 1a of the tube body 1) and the flow state in the tube (the flow state of the transported material flowing in the tube body 1) with a simple structure.
As a result, it is possible to identify the wear life of the inner surface 1a of the tube body 1 due to transportation of solids and fluids, and to estimate the replacement time of the tube body A, thereby preventing the burst due to wear. It is possible to prevent accidents such as clogging of transported goods in 1 and improve safety.
Furthermore, by preparing a plurality of types of pipe main bodies 1 in which different-color wear detectors 2 are embedded, and changing the color of the wear detector 2 according to the application and function, the color of the wear detector 2 is changed to a sign. Thus, the tube A can be distinguished easily and at low cost.

特に、摩耗検知部２を線状に形成した場合には、管本体１の周方向において大部分が摩耗検知部２の無い第二透明部位１２となり、第二透明部位１２の面積が最大近くまで拡大される。
したがって、摩耗検知部２が目視の妨げとならず管本体１内を流れる輸送物の流れ状況をより明確に目視確認することができる。
その結果、管本体１内における輸送物の詰まり事故などをより確実に防止できて、更なる安全性の向上が図れる。 In particular, when the wear detection portion 2 is formed in a linear shape, most of the circumferential direction of the tube body 1 becomes the second transparent portion 12 without the wear detection portion 2, and the area of the second transparent portion 12 is close to the maximum. Enlarged.
Therefore, the wear detection unit 2 does not hinder the visual observation, and the flow state of the transported material flowing in the pipe body 1 can be visually confirmed more clearly.
As a result, it is possible to more reliably prevent accidents such as clogging of transported goods within the pipe body 1, and further improve safety.

さらに、管本体１に対して摩耗検知部２を螺旋状に配置した場合には、管本体１の内面１ａの周方向に亘って摩耗検知部２が軸方向へ等間隔で配置される。
したがって、管本体１の内面１ａの周方向全体の摩耗度合を検知することができる。
その結果、摩耗識別の見落としを減少させることができて、更なる安全性の向上が図れる。 Furthermore, when the wear detector 2 is arranged in a spiral shape with respect to the tube body 1, the wear detector 2 is arranged at equal intervals in the axial direction over the circumferential direction of the inner surface 1 a of the tube body 1.
Therefore, it is possible to detect the degree of wear of the entire inner surface 1a of the pipe body 1 in the circumferential direction.
As a result, oversight of wear identification can be reduced, and further improvement in safety can be achieved.

次に、本発明の各実施例を図面に基づいて説明する。
この実施例１は、図１（ａ）（ｂ）及び図２（ａ）（ｂ）に示すように、管本体１に透明材料（透明樹脂）からなる補強線材３を設け、補強線材３の内部に摩耗検知部２を埋設し、補強線材３において厚み方向中間位置よりも内側に摩耗検知部２を配置したものである。 Next, each embodiment of the present invention will be described with reference to the drawings.
In Example 1, as shown in FIGS. 1A, 1B, and 2A, 2B, a reinforcing wire 3 made of a transparent material (transparent resin) is provided on the tube body 1, and the reinforcing wire 3 The wear detection part 2 is embedded inside, and the wear detection part 2 is arranged inside the intermediate position in the thickness direction in the reinforcing wire 3.

図１（ａ）（ｂ）に示される例では、補強線材３の内端位置に摩耗検知部２が埋設され、この補強線材３を管本体１の内部（内層１ｃと外層１ｄの間）に螺旋状に埋設することにより、内層１ｃにおいて厚み方向中間位置まで摩耗検知部２が食い込んだ状態で螺旋状に配置されている。
図２（ａ）（ｂ）に示される例では、補強線材３の内端位置に摩耗検知部２が埋設され、この補強線材３を管本体１の内部（内層１ｃと外層１ｄの間）に螺旋状に埋設することにより、内層１ｃにおいて厚み方向中間位置まで摩耗検知部２が食い込んだ状態で螺旋状に配置されている。 In the example shown in FIGS. 1A and 1B, the wear detecting portion 2 is embedded at the inner end position of the reinforcing wire 3, and the reinforcing wire 3 is placed inside the pipe body 1 (between the inner layer 1c and the outer layer 1d). By being embedded in a spiral shape, the wear detector 2 is disposed in a spiral shape in the inner layer 1c in a state where the wear detection portion 2 has bitten into an intermediate position in the thickness direction.
In the example shown in FIGS. 2 (a) and 2 (b), the wear detector 2 is embedded at the inner end position of the reinforcing wire 3, and the reinforcing wire 3 is placed inside the pipe body 1 (between the inner layer 1c and the outer layer 1d). By being embedded in a spiral shape, the wear detector 2 is disposed in a spiral shape in the inner layer 1c in a state where the wear detection portion 2 has bitten into an intermediate position in the thickness direction.

このような本発明の実施例１に係る摩耗検知機能付きの管体Ａによると、管本体１の内面１ａの摩耗が補強線材３に到達した時点で、摩耗検知部２が削れ始め、補強線材３の全体が摩耗し終わる前の時点で摩耗検知部２が摩耗する。
したがって、管本体１が補強線材３により補強されているタイミングで摩耗寿命を識別することができる。
その結果、管本体１の内面１ａの摩耗により更に破裂し難くなって、更なる安全性の向上が図れるという利点がある。 According to the pipe body A with the wear detection function according to the first embodiment of the present invention, when the wear of the inner surface 1a of the pipe body 1 reaches the reinforcing wire 3, the wear detecting portion 2 starts to be scraped, and the reinforcing wire The wear detector 2 is worn at a point before the entire wear of 3 is finished.
Therefore, the wear life can be identified at the timing when the pipe body 1 is reinforced by the reinforcing wire 3.
As a result, the inner surface 1a of the tube body 1 is more difficult to rupture due to wear, and there is an advantage that the safety can be further improved.

また、図１（ａ）（ｂ）及び図２（ａ）（ｂ）に示されるように、補強線材３において、摩耗検知部２よりも厚み方向外側に配置される中央部位３１を、径方向外側へ最も膨出させ、中央部位３１から管本体１の軸方向両端部位３２，３３へ向け徐々に肉薄にして透明の凸レンズとなるように形成した場合には、中央部位３１を透した凸レンズ作用で摩耗検知部２が外から拡大して見える。
したがって、着色された摩耗検知部２のサイズを細くしても目視確認することができる。
ところで、図示例のように、補強線材３の内部に摩耗検知部２が埋設される場合には、摩耗検知部２としてサイズが太いものを埋設すると、補強線材３の剛性に悪影響が生じて、管体Ａの耐圧性や保形性などが低下するおそれが考えられる。さらに、摩耗検知部２のサイズが太いと、摩耗検知部２のサイズが細いものに比べ、着色された摩耗検知部２が削れて流体に混入する確率が高くなり、流体の品質に悪影響を与える可能性も高くなる。
これに対して、図１（ａ）（ｂ）及び図２（ａ）（ｂ）に示される場合には、摩耗検知部２としてサイズが細いものを用いることができるため、補強線材３や管本体１に対する摩耗検知部２の影響を最小限に抑えることができて、性能や品質の低下防止が図れるという利点がある。 Further, as shown in FIGS. 1A and 1B and FIGS. 2A and 2B, in the reinforcing wire 3, the central portion 31 disposed on the outer side in the thickness direction than the wear detecting portion 2 is arranged in the radial direction. When it is formed so as to be a transparent convex lens by bulging most outward and gradually becoming thinner from the central part 31 toward both axial parts 32 and 33 in the axial direction of the tube body 1, the convex lens action through the central part 31 The wear detector 2 appears to expand from the outside.
Therefore, even if the size of the colored wear detector 2 is reduced, it can be visually confirmed.
By the way, as shown in the illustrated example, when the wear detector 2 is embedded inside the reinforcing wire 3, if the wear detector 2 is embedded with a large size, the rigidity of the reinforcing wire 3 is adversely affected. There is a possibility that the pressure resistance, shape retention, etc. of the tube A may be lowered. Furthermore, if the size of the wear detection unit 2 is large, the probability that the colored wear detection unit 2 is shaved and mixed into the fluid is higher than that of the wear detection unit 2 having a small size, which adversely affects the quality of the fluid. The possibility is also high.
On the other hand, in the case shown in FIGS. 1A, 1B, and 2A, 2B, the wear detecting unit 2 can be thin, so that the reinforcing wire 3 and the pipe There is an advantage that the influence of the wear detection unit 2 on the main body 1 can be minimized and the performance and quality can be prevented from being lowered.

この実施例２は、図３（ａ）（ｂ）及び図５（ａ）（ｂ）に示すように、管本体１に透明材料（透明樹脂）からなる補強線材３を設け、管本体１の厚み方向において補強線材３よりも内側に配置される重合部位１３に摩耗検知部２を配置した構成が、図１〜図３に示した実施例１とは異なり、それ以外の構成は図１〜図３に示した実施例１と同じものである。   In the second embodiment, as shown in FIGS. 3A, 3B and 5A, 5B, a reinforcing wire 3 made of a transparent material (transparent resin) is provided on the tube body 1, and the tube body 1 Unlike the first embodiment shown in FIGS. 1 to 3, the configuration in which the wear detection unit 2 is arranged in the polymerization site 13 arranged inside the reinforcing wire 3 in the thickness direction is different from those in FIGS. This is the same as Example 1 shown in FIG.

図５（ａ）に示される例は、図１（ａ）（ｂ）に示されるものの変形例であり、螺旋状の補強線材３の内端位置と接触するように摩耗検知部２を螺旋状に埋設して、摩耗検知部２が内層１ｃの重合部位１３に食い込むように配置している。
図５（ｂ）に示される例は、図２（ａ）（ｂ）に示されるものの変形例であり、螺旋状の補強線材３の内端位置と接触するように摩耗検知部２を螺旋状に埋設して、摩耗検知部２が内層１ｃの重合部位１３に食い込むように配置している。 The example shown in FIG. 5 (a) is a modification of that shown in FIGS. 1 (a) and 1 (b), and the wear detector 2 is spirally contacted with the inner end position of the spiral reinforcing wire 3. The wear detector 2 is arranged so as to bite into the polymerization site 13 of the inner layer 1c.
The example shown in FIG. 5 (b) is a modification of that shown in FIGS. 2 (a) and 2 (b), and the wear detector 2 is spirally contacted with the inner end position of the spiral reinforcing wire 3. The wear detector 2 is arranged so as to bite into the polymerization site 13 of the inner layer 1c.

このような本発明の実施例２に係る摩耗検知機能付きの管体Ａによると、管本体１の内面１ａの摩耗が補強線材３に到達する前の時点で、摩耗検知部２が削れる。
したがって、管本体１が補強線材３により補強されているタイミングで摩耗寿命を識別することができる。
その結果、実施例１よりも管本体１の内面１ａの摩耗により更に破裂し難くなって、更なる安全性の向上が図れるという利点がある。 According to the pipe body A with the wear detection function according to the second embodiment of the present invention, the wear detection unit 2 is scraped before the wear of the inner surface 1a of the pipe body 1 reaches the reinforcing wire 3.
Therefore, the wear life can be identified at the timing when the pipe body 1 is reinforced by the reinforcing wire 3.
As a result, it is more difficult to rupture due to wear of the inner surface 1a of the tube body 1 than in the first embodiment, and there is an advantage that further improvement in safety can be achieved.

この実施例３は、図６（ａ）（ｂ）（ｃ）に示すように、管本体１に対して摩耗検知部２と補強線材３をそれぞれ螺旋状に配置し、摩耗検知部２と補強線材３の相対位置を管本体１の軸方向に変位させた構成が、図１〜図３に示した実施例１や図３及び図５に示した実施例２とは異なり、それ以外の構成は図１〜図３に示した実施例１や図３及び図５に示した実施例２と同じものである。
さらに、図６（ａ）（ｂ）（ｃ）に示される例では、管本体１において補強線材３の配置位置から軸方向に変位した箇所で、且つ管本体１の厚み方向において補強線材３の内端位置の近傍レベル又はそれよりも内側のレベルに配置される軟質部位１４に対して、摩耗検知部２を螺旋状に埋設している。 In the third embodiment, as shown in FIGS. 6A, 6B, and 6C, the wear detecting portion 2 and the reinforcing wire 3 are respectively arranged in a spiral shape with respect to the pipe body 1, and the wear detecting portion 2 and the reinforcement are provided. The configuration in which the relative position of the wire 3 is displaced in the axial direction of the tube body 1 is different from the first embodiment shown in FIGS. 1 to 3 and the second embodiment shown in FIGS. These are the same as the first embodiment shown in FIGS. 1 to 3 and the second embodiment shown in FIGS.
Furthermore, in the example shown in FIGS. 6A, 6 </ b> B, and 6 </ b> C, the reinforcing wire 3 is located at a position displaced in the axial direction from the arrangement position of the reinforcing wire 3 in the tube body 1 and in the thickness direction of the tube body 1. The wear detection unit 2 is spirally embedded in the soft portion 14 arranged at a level near the inner end position or an inner level thereof.

図６（ａ）に示される例は、図５（ａ）に示されるものの変形例であり、管本体１の内層１ｃの厚み方向において補強線材３よりも内側のレベルに配置される軟質部位１４に対して、螺旋状の摩耗検知部２を補強線材３の埋設位置と軸方向へ変位させて埋設している。
図６（ｂ）に示される例は、図５（ｂ）に示されるものの変形例であり、管本体１の内層１ｃの厚み方向において補強線材３よりも内側のレベルに配置される軟質部位１４に対して、螺旋状の摩耗検知部２を補強線材３の埋設位置と軸方向へ変位させて埋設している。
図６（ｃ）に示される例は、図３（ａ）（ｂ）に示されるものの変形例であり、管本体１の厚み方向において補強線材３よりも内側のレベルに配置される軟質部位１４に対して、螺旋状の摩耗検知部２を補強線材３の突設位置と軸方向へ変位させて埋設している。
また、その他の例として図示しないが、図１（ａ）（ｂ）及び図２（ａ）（ｂ）に示される摩耗検知部２の埋設位置を、内層１ｃにおいて補強線材３の厚み方向内端位置の近傍レベルに変更することも可能である。 The example shown in FIG. 6 (a) is a modification of that shown in FIG. 5 (a), and is a soft portion 14 arranged at a level inside the reinforcing wire 3 in the thickness direction of the inner layer 1c of the tube body 1. On the other hand, the helical wear detection part 2 is embedded by being displaced in the axial direction with respect to the embedded position of the reinforcing wire 3.
The example shown in FIG. 6B is a modification of that shown in FIG. 5B, and is a soft portion 14 arranged at a level inside the reinforcing wire 3 in the thickness direction of the inner layer 1c of the tube body 1. On the other hand, the helical wear detection part 2 is embedded by being displaced in the axial direction with respect to the embedded position of the reinforcing wire 3.
The example shown in FIG. 6C is a modification of that shown in FIGS. 3A and 3B, and the soft portion 14 arranged at the level inside the reinforcing wire 3 in the thickness direction of the tube body 1. On the other hand, the helical wear detector 2 is embedded by being displaced in the axial direction with respect to the protruding position of the reinforcing wire 3.
Although not shown as another example, the embedded position of the wear detecting portion 2 shown in FIGS. 1A, 1B and 2A, 2B is the inner end in the thickness direction of the reinforcing wire 3 in the inner layer 1c. It is also possible to change to a level near the position.

このような本発明の実施例３に係る摩耗検知機能付きの管体Ａによると、補強線材３が有色の不透明材料からなる場合であっても、管本体１の外から補強線材３が邪魔にならず、管本体１において摩耗検知部２の外側に配置される第一透明部位１１を透して摩耗検知部２の削れ状況が透視可能となる。
したがって、補強線材３が不透明であっても管本体１の内面１ａの摩耗状況を目視確認することができる。
その結果、補強線材３の色を変えることで、管体Ａを簡単に且つ低コストで区別することができるという利点もある。
さらに図示例のように、管本体１の内層１ｃにおいて補強線材３よりも厚み方向内側のレベルに摩耗検知部２が埋設される場合には、実施例２と同様に、管本体１の内面１ａの摩耗が補強線材３に到達する前の時点で、摩耗検知部２が削れる。
また、摩耗検知部２の埋設位置を、内層１ｃにおいて補強線材３の厚み方向内端位置の近傍レベルに変更した場合には、実施例１と同様に、管本体１の内面１ａの摩耗が補強線材３に到達した時点で、摩耗検知部２が削れ始め、補強線材３の全体が摩耗し終わる前の時点で摩耗検知部２が摩耗する。
したがって、管本体１が補強線材３により補強されているタイミングで摩耗寿命を識別することができる。
その結果、管本体１の内面１ａの摩耗により更に破裂し難くなって、更なる安全性の向上が図れるという利点もある。 According to the tubular body A with the wear detection function according to the third embodiment of the present invention, even if the reinforcing wire 3 is made of a colored opaque material, the reinforcing wire 3 is obstructed from the outside of the tube body 1. Instead, the wear state of the wear detector 2 can be seen through the first transparent portion 11 disposed outside the wear detector 2 in the pipe body 1.
Therefore, even if the reinforcing wire 3 is opaque, it is possible to visually check the wear state of the inner surface 1a of the tube body 1.
As a result, there is also an advantage that the tube A can be distinguished easily and at low cost by changing the color of the reinforcing wire 3.
Further, as shown in the illustrated example, in the case where the wear detection unit 2 is embedded in the inner layer 1c of the tube body 1 at a level inside the reinforcing wire 3 in the thickness direction, similarly to the second embodiment, the inner surface 1a of the tube body 1 is embedded. At a point before the wear reaches the reinforcing wire 3, the wear detector 2 is shaved.
Further, when the burying position of the wear detecting portion 2 is changed to a level near the inner end position in the thickness direction of the reinforcing wire 3 in the inner layer 1c, the wear on the inner surface 1a of the pipe body 1 is reinforced as in the first embodiment. When reaching the wire 3, the wear detector 2 starts to be worn, and the wear detector 2 is worn before the entire reinforcing wire 3 is completely worn out.
Therefore, the wear life can be identified at the timing when the pipe body 1 is reinforced by the reinforcing wire 3.
As a result, the inner surface 1a of the tube body 1 is more difficult to rupture due to wear, and there is an advantage that further improvement in safety can be achieved.

なお、前示実施例では、管本体１に透明材料（透明樹脂）からなる補強線材３を螺旋状に設けたが、これに限定されず、金属線からなる補強線材に代えたり、複数本の補強糸を螺旋状に巻き付けて網状に設けたりしても良い。   In the preceding embodiment, the reinforcing wire 3 made of a transparent material (transparent resin) is provided in a spiral shape on the tube main body 1, but the present invention is not limited to this. Instead of the reinforcing wire made of a metal wire, The reinforcing yarn may be spirally wound and provided in a net shape.

Ａ 管体 １ 管本体
１ａ 内面 １１ 第一透明部位
１２ 第二透明部位 １３ 重合部位
２ 摩耗検知部 ３ 補強線材
３１ 中央部位 ３２，３３ 軸方向両端部位 A Tube 1 Tube body 1a Inner surface 11 First transparent part 12 Second transparent part 13 Polymerization part 2 Wear detection part 3 Reinforcing wire 31 Central part 32, 33 Both axial parts

Claims (7)

摩耗検知機能を有する管体であって、
透明材料からなる管本体と、
前記管本体の内部に該管本体の全長に亘って設けられた着色材料からなる摩耗検知部と、を備え、
前記摩耗検知部は、前記管本体の周方向一部を部分的に覆う線状又は帯状に形成され、前記管本体において厚み方向中間位置よりも内側に埋設したことを特徴とする管体。 A tubular body having a wear detection function,
A tube body made of a transparent material;
A wear detector made of a colored material provided over the entire length of the tube body inside the tube body,
The said wear detection part is formed in the linear or strip | belt shape which partially covers the circumferential direction part of the said pipe | tube main body, The pipe | tube body characterized by being embed | buried inside the thickness direction intermediate position in the said pipe | tube main body. 前記摩耗検知部を線状に形成したことを特徴とする請求項１記載の管体。   The tubular body according to claim 1, wherein the wear detection portion is formed in a linear shape. 前記管本体に対して前記摩耗検知部を螺旋状に配置したことを特徴とする請求項１又は２記載の管体。   The pipe body according to claim 1 or 2, wherein the wear detection portion is arranged in a spiral shape with respect to the pipe body. 前記管本体に透明材料からなる補強線材を設け、前記補強線材の内部に前記摩耗検知部を埋設し、前記補強線材において厚み方向中間位置よりも内側に前記摩耗検知部を配置したことを特徴とする請求項１、２又は３記載の管体。   The tube main body is provided with a reinforcing wire made of a transparent material, the wear detecting portion is embedded inside the reinforcing wire, and the wear detecting portion is disposed inside the intermediate position in the thickness direction of the reinforcing wire. The tubular body according to claim 1, 2, or 3. 前記管本体に透明材料からなる補強線材を設け、前記管本体の厚み方向において前記補強線材よりも内側に配置される重合部位に前記摩耗検知部を配置したことを特徴とする請求項１、２又は３記載の管体。   A reinforcement wire made of a transparent material is provided on the pipe body, and the wear detection part is arranged at a polymerization site arranged inside the reinforcement wire in the thickness direction of the pipe body. Or the tubular body of 3. 前記補強線材において、前記摩耗検知部よりも厚み方向外側に配置される中央部位を径方向外側へ最も膨出させ、該中央部位から前記管本体の軸方向両端部位へ向け徐々に肉薄にして透明の凸レンズとなるように形成したことを特徴とする請求項４又は５記載の管体。   In the reinforcing wire, the central portion arranged on the outer side in the thickness direction than the wear detecting portion is bulged most outward in the radial direction, and gradually thinned from the central portion toward both axial end portions of the tube body. The tubular body according to claim 4, wherein the tubular body is formed so as to be a convex lens. 前記管本体に対して前記摩耗検知部と補強線材をそれぞれ螺旋状に配置し、前記摩耗検知部と前記補強線材の相対位置を前記管本体の軸方向に変位させたことを特徴とする請求項３記載の管体。   The wear detector and the reinforcing wire are respectively arranged spirally with respect to the pipe body, and the relative positions of the wear detector and the reinforcing wire are displaced in the axial direction of the pipe body. 3. The tube according to 3.
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