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JP3393273B2 - Inner / outer surface smooth synthetic resin tube and method of manufacturing the same - Google Patents

Inner / outer surface smooth synthetic resin tube and method of manufacturing the same

Info

Publication number
JP3393273B2
JP3393273B2 JP2596595A JP2596595A JP3393273B2 JP 3393273 B2 JP3393273 B2 JP 3393273B2 JP 2596595 A JP2596595 A JP 2596595A JP 2596595 A JP2596595 A JP 2596595A JP 3393273 B2 JP3393273 B2 JP 3393273B2
Authority
JP
Japan
Prior art keywords
wall
profile
pipe
synthetic resin
adhesive
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
JP2596595A
Other languages
Japanese (ja)
Other versions
JPH08192472A (en
Inventor
史朗 金尾
Original Assignee
金尾 茂樹
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 金尾 茂樹 filed Critical 金尾 茂樹
Priority to JP2596595A priority Critical patent/JP3393273B2/en
Publication of JPH08192472A publication Critical patent/JPH08192472A/en
Application granted granted Critical
Publication of JP3393273B2 publication Critical patent/JP3393273B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Rigid Pipes And Flexible Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、空調用送風管その他各
種の流体輸送管・電線保護管や古い管の補修更生用管等
として用いられる管であって、管の内壁と外壁とが略平
滑円筒状に形成されている内外面平滑合成樹脂管に関す
るものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a pipe used as a ventilation pipe for air conditioning and other various fluid transportation pipes, a wire protection pipe, a pipe for repair and rehabilitation of an old pipe, and the like, and the inner wall and outer wall of the pipe are substantially The present invention relates to a smooth synthetic resin pipe having inner and outer surfaces formed in a smooth cylindrical shape.

【0002】[0002]

【従来の技術】従来、内外面平滑合成樹脂管は、各種各
様の構造のものが既に提案され、その一部のものは既に
製造され一般にも知られている。他方、図8に示したよ
うに、断面形状を矢印形とした帯状の合成樹脂製プロフ
アイルAを形成し、これを螺旋状に巻回させながら隣接
する突起aを開口部bに順次挿入することによって管体
Pを形成することも知られている。
2. Description of the Related Art Conventionally, various types of smooth inner and outer surface synthetic resin tubes have been proposed, some of which have already been manufactured and are generally known. On the other hand, as shown in FIG. 8, a belt-shaped synthetic resin profile A having an arrow-shaped cross section is formed, and adjacent protrusions a are sequentially inserted into the openings b while being spirally wound. It is also known to form a tubular body P by doing so.

【0003】前者の内外面平滑合成樹脂管は工場によっ
て生産される管であり、管径は工場生産時に決定され
る。後者の管体Bは当然のことながら工場生産すること
もできるが、前記のプロフアイルAを用いて連結形成す
る管であるため、プロフアイルAを使用現場に運搬し、
これを螺旋状に巻回させながら前記のように隣接する突
起aを開口部bに順次挿入させることによって任意の径
の管体を形成することができる利点を有している。この
ため、厳密な密封性と耐圧性の要求度の低い空調用ダク
トや古い管の補修のための更生管等として使用されるに
至っている。
The former smooth inner and outer surface synthetic resin pipe is a pipe produced by a factory, and the pipe diameter is determined at the time of factory production. The latter tubular body B can of course be manufactured in a factory, but since it is a tube that is connected and formed using the profile A, the profile A is transported to the site of use,
As described above, the adjacent projections a are sequentially inserted into the openings b while being spirally wound, so that a tubular body having an arbitrary diameter can be formed. For this reason, it has come to be used as an air-conditioning duct for which strict sealing and pressure resistance are low, a rehabilitation pipe for repairing old pipes, and the like.

【0004】しかしながら、このプロフアイルAを使用
して形成された管体Pは、突起aを嵌合空間c内におい
て管の軸線方向に自由に摺動できる状態に形成すること
によって可撓性を持たせるようにしてあるものであるか
ら、前記のように密封性がなく耐圧変形性に乏しいもの
となっている。そのため、使用範囲が極端に限定され、
通常一般の管体のように気密性が求められる部分には使
用することができないという課題を有するものである。
However, the pipe body P formed by using the profile A has flexibility by forming the projection a in the fitting space c so as to be freely slidable in the axial direction of the pipe. Since it is designed to be held, as described above, it does not have hermeticity and has poor resistance to pressure deformation. Therefore, the range of use is extremely limited,
It has a problem that it cannot be used in a portion where airtightness is generally required like a general tubular body.

【0005】[0005]

【発明が解決しようとする課題】本発明の目的は、上記
のプロフアイルAを用いて形成する管体Pの場合のよう
に、プロフアイルを使用現場に運んで任意の径の管体を
形成することができるという利点を利用できる管体であ
りながら、前記のプロフアイルAで形成された管体Pと
対比すれば充分な耐圧偏平性能を有する管であって、し
かも、工場内製造しかできない一般の管の場合と同様に
充分な気密性を有する管体であって、内壁と外壁とが略
平滑な円筒状となっていて、これら両壁間に放射方向に
伸びる螺旋状の補強壁を有する内外面平滑合成樹脂管を
提供しようとするものである。
An object of the present invention is to transport a profile to a site of use to form a tubular body having an arbitrary diameter, as in the case of the tubular body P formed using the profile A described above. Although it is a tube body that can utilize the advantage of being capable of being manufactured, it is a tube having sufficient pressure resistance flatness performance in comparison with the tube body P formed of the profile A, and can only be manufactured in a factory. As in the case of a general pipe, it is a pipe body having sufficient airtightness, and the inner wall and the outer wall are in a substantially smooth cylindrical shape, and a spiral reinforcing wall extending in the radial direction is provided between these both walls. The present invention aims to provide a synthetic resin tube having smooth inner and outer surfaces.

【0006】[0006]

【課題を解決するための手段】この課題を解決するため
に講じた本発明にいう内外面平滑合成樹脂管の構成は、
断面形状が中空の方形状で、一側の縦壁11に開口部1
2を有し他側の縦壁13から横外方に向かって突出する
突出壁14を有する帯状の合成樹脂製プロフアイル10
が螺旋状に巻回され、先行巻回プロフアイル10の開口
部12に後続巻回プロフアイル10の突出壁14が挿入
され、かつ、これらの開口部12と突出壁14との接当
面20が接着剤5によって接着されて一体的かつ水密的
に連結され、内壁2と外壁3とが略平滑な円筒状となっ
ていて、これら両壁間に放射方向に伸びる螺旋状の連結
壁4が形成されている構成としたものである。
The construction of the smooth inner and outer surface synthetic resin pipe according to the present invention, which was devised to solve this problem, is as follows.
The cross-sectional shape is a hollow rectangular shape, and the opening 1 is formed in the vertical wall 11 on one side.
2, a strip-shaped synthetic resin profile 10 having a projecting wall 14 projecting laterally outward from a vertical wall 13 on the other side.
Is spirally wound, the protruding wall 14 of the succeeding winding profile 10 is inserted into the opening 12 of the preceding winding profile 10, and the abutment surface 20 between the opening 12 and the protruding wall 14 is The inner wall 2 and the outer wall 3 are bonded together by an adhesive 5 so as to be integrally and watertightly connected to each other, and the inner wall 2 and the outer wall 3 have a substantially smooth cylindrical shape, and a spiral connecting wall 4 extending in the radial direction is formed between the both walls. It has been configured.

【0007】また、このような構成とした管体の製造方
法は、該管壁1を形成する帯状のプロフアイルを、断面
形状が中空の方形状で、一側の縦壁11に開口部12を
形成し他側の縦壁13に横外方に向かって突出する突出
壁14を形成してある合成樹脂製プロフアイル10と
し、該プロフアイル10の前記開口部12または突出壁
14の一方もしくは双方に接着剤5を塗布し、先行巻回
プロフアイル10の開口部12に後続巻回プロフアイル
10の突出壁14を挿入しながら順次螺旋状に巻回し、
前記接着剤5を硬化させて、先行巻回プロフアイル10
と後続巻回プロフアイル10とを水密的かつ一体的に連
結させる方法である。
Further, in the method of manufacturing a tubular body having such a structure, the strip-shaped profile forming the tubular wall 1 has a hollow rectangular cross section, and the opening 12 is formed in the vertical wall 11 on one side. To form a synthetic resin profile 10 in which a projecting wall 14 projecting laterally outward is formed on a vertical wall 13 on the other side. One of the opening 12 of the profile 10 or the projecting wall 14 or Adhesive 5 is applied to both sides, and the spiral winding is sequentially performed while inserting the protruding wall 14 of the subsequent winding profile 10 into the opening 12 of the preceding winding profile 10.
The adhesive 5 is cured and the pre-wound profile 10
This is a method of connecting the following winding profile 10 in a watertight and integrated manner.

【0008】本発明にいう内外面平滑合成樹脂管の管壁
1は、単層状のものに限らず、二層状・三層状等必要に
応じて複数層重層状に形成してあるものとしてもよい。
該管壁1を形成するプロフアイル10は、管径と耐圧性
を考慮して任意の横幅と高さと肉厚とをもつ断面中空の
方形状の帯とし、その形成素材はポリエチレンやポリ塩
化ビニール・ポリプロピレンその他任意の合成樹脂素材
を選択使用する。また、該管壁1を形成するプロフアイ
ル10は、単純な方形状のもののみに限らず耐圧性能を
向上させる他の手段として、中空部17に左右の縦壁1
1,13とは別の補強縦壁18を形成してあるものとし
て実施してもよい。
The tube wall 1 of the smooth inner and outer surface synthetic resin tube according to the present invention is not limited to a single layer, but may be formed in a multi-layered structure such as a two-layered or three-layered structure. .
The profile 10 forming the pipe wall 1 is a rectangular strip having a hollow cross section having an arbitrary width, height and wall thickness in consideration of the pipe diameter and pressure resistance, and its forming material is polyethylene or polyvinyl chloride. -Select and use polypropylene and other synthetic resin materials. The profile 10 forming the tube wall 1 is not limited to a simple rectangular shape, but as another means for improving the pressure resistance, the hollow portion 17 is provided with the left and right vertical walls 1.
You may implement it as what has formed the reinforcement vertical wall 18 different from 1 and 13.

【0009】[0009]

【作用】このような構成とした本発明の内外面平滑合成
樹脂管は、管壁1に大きな圧力が作用したとき、管の外
壁と連結壁4と内壁3とが共同して外圧と対抗し、管の
偏平化を阻止する働きをする。
The inner and outer surface smooth synthetic resin pipe of the present invention having the above-described structure, when a large pressure acts on the pipe wall 1, the outer wall of the pipe, the connecting wall 4 and the inner wall 3 cooperate to counteract the external pressure. , Works to prevent flattening of pipes.

【0010】[0010]

【実施例】次に、本発明の実施例について、添付の図面
に基づいて説明する。図1及び図2は、本発明の第1実
施例を示した図である。図1は内外面平滑合成樹脂管P
の一部を破断した外形と製造工程を示した図であり、図
2は管壁1部分の構造を拡大して示した断面図である。
Embodiments of the present invention will now be described with reference to the accompanying drawings. 1 and 2 are views showing a first embodiment of the present invention. Figure 1 shows a smooth inner and outer surface synthetic resin pipe P
FIG. 2 is a view showing an outer shape and a manufacturing process in which a part of is broken, and FIG. 2 is an enlarged sectional view showing a structure of a pipe wall 1 portion.

【0011】先ず、説明の便宜上製造方法から説明する
と、左右2つの縦壁11,13と上下の水平壁15,1
6とからなり断面形状が中空部17をもつ略正方形状
で、一側(図において右側)の縦壁11の下端部分に開
口部12を有し、他側(図において左側)の縦壁13の
下端に近い部分から左横外方に向かって突出させた突出
壁14を有する帯状の合成樹脂プロフアイル10を合成
樹脂押出機から押し出して形成する。合成樹脂素材は、
前記のように任意の素材でよい。このプロフアイル10
を工場内でまたは管の設置場所に運搬して、螺旋状に巻
回させる。この巻回に先立って突出壁14の上面に、必
要ならば上下両面に接着剤5を塗布し、先行巻回プロフ
アイル10の開口部12に後続巻回プロフアイル10の
突出壁14を挿入させ、これら両部分12,14の接当
面20を接着剤5によって接着させ、硬化させて一体的
かつ水密的に連結させてある構造としたものである。
First, for convenience of explanation, the manufacturing method will be described. Two left and right vertical walls 11 and 13 and upper and lower horizontal walls 15 and 1.
6 has a substantially square cross section with a hollow portion 17, has an opening 12 at the lower end of a vertical wall 11 on one side (right side in the figure), and has a vertical wall 13 on the other side (left side in the figure). A strip-shaped synthetic resin profile 10 having a projecting wall 14 projecting outward in the left lateral direction from a portion near the lower end of is extruded from a synthetic resin extruder to be formed. The synthetic resin material is
Any material may be used as described above. This profile 10
Is transported in the factory or to the place where the pipe is installed and wound in a spiral shape. Prior to this winding, the adhesive 5 is applied to the upper surface of the projecting wall 14 on both upper and lower sides, if necessary, and the projecting wall 14 of the succeeding winding profile 10 is inserted into the opening 12 of the preceding winding profile 10. The contact surfaces 20 of these two parts 12 and 14 are adhered by an adhesive 5 and cured to be integrally and watertightly connected.

【0012】該 このようにして製造した内外面平滑合
成樹脂管Pの構造は、図1及び図2に見られるように、
管壁1の形状を、略直線円筒状に形成された内壁2と、
同様に略直線円筒状に形成された外壁3と、これら内外
両壁2,3の間をつなぐ連結壁4が放射方向に伸びる螺
旋状になっていて、隣合うプロフアイル10がプロフア
イル10の開口部12と突出壁14との接当面20で一
体的に連結され、内部に中空室6を有する管体構造とな
っている。
As shown in FIGS. 1 and 2, the structure of the smooth inner and outer surface synthetic resin pipe P manufactured as described above is as follows.
The tube wall 1 has an inner wall 2 formed into a substantially straight cylindrical shape,
Similarly, an outer wall 3 formed in a substantially straight cylindrical shape and a connecting wall 4 connecting the inner and outer walls 2, 3 are spirally extending in a radial direction, and adjacent profiles 10 are adjacent to each other. The tubular structure is integrally connected at the contact surface 20 between the opening 12 and the protruding wall 14 and has the hollow chamber 6 inside.

【0013】この隣合うプロフアイル10どうしの連結
手段としては、プロフアイル10の突出壁14の片面ま
たは両面に接着剤5を塗布する方法のほか、プロフアイ
ル10の開口部12に接着剤5を塗布してもよく、また
はその双方に接着剤5を塗布してもよい。接着剤5は溶
剤性の接着剤のみに限らず熔融樹脂であってもよい。ま
た、接着剤の塗布に代えて接着面を加熱熔融させて融着
する方法によっても接着させることができる。このよう
に、接着面を、開口部12と突出壁14との接当面20
のみにしておくと、管体P全体を多少ながら可撓性のあ
るものとしておくことができる。しかしながら、可撓性
の求められない管体の場合には、前記接当面20のみに
限らず、隣接するプロフアイル10の縦壁11,13同
士の一部または全面も接着させればよい。
As means for connecting the adjacent profiles 10, the adhesive 5 may be applied to one or both sides of the projecting wall 14 of the profile 10, or the adhesive 5 may be applied to the opening 12 of the profile 10. The adhesive 5 may be applied, or both may be applied. The adhesive 5 is not limited to a solvent-based adhesive and may be a molten resin. Further, instead of applying the adhesive agent, the adhesive surface can be adhered by a method of heating and melting the adhesive surface and fusing. As described above, the adhesive surface is the contact surface 20 between the opening 12 and the protruding wall 14.
If left alone, the entire pipe body P can be made somewhat flexible. However, in the case of a pipe body which is not required to have flexibility, not only the contact surface 20 but also a part or the whole of the vertical walls 11 and 13 of the adjacent profile 10 may be bonded.

【0014】このようにして製造した図1〜2に示す構
造の管10本について耐圧偏平試験と気密性の試験をし
た。その結果は、次の通りであった。管Pの長さ1m、
合成樹脂素材=硬質塩化ビニル,接着剤の種類=溶剤系
接着剤、管の外径338mm,内径300mm,プロフアイ
ル10の四方壁の肉厚3.0mm(内・外壁2,3の肉厚
3.0mm,連結壁4の肉厚6.0mm)の管に、外圧100
0kg/mの荷重をかけた結果、無荷重状態(真円状態)
からの変形量(沈み量)は平均7.1mmであった。ま
た、管内に2kg/cm2の水圧を30分間加えた試験で
は、外部への水漏れ現象は認められなかった。したがっ
て、この管Pを地中に埋設して使用しても充分に外圧に
耐え得るものであり、充分に水圧にも耐え得るものであ
ることが確認された。
The pressure resistance flatness test and the airtightness test were carried out on the 10 tubes having the structure shown in FIGS. The results were as follows. The length of the pipe P is 1 m,
Synthetic resin material = Hard vinyl chloride, Adhesive type = Solvent-based adhesive, Pipe outer diameter 338 mm, Inner diameter 300 mm, Wall thickness of four sides of profile 10 3.0 mm (Thickness of inner and outer walls 2, 3 3 0.0mm, the wall thickness of the connecting wall 4 is 6.0mm)
As a result of applying a load of 0 kg / m, there is no load (round condition)
The average amount of deformation (sink amount) was 7.1 mm. In addition, in a test in which a water pressure of 2 kg / cm 2 was applied to the pipe for 30 minutes, no water leakage phenomenon to the outside was observed. Therefore, it was confirmed that even if the pipe P is buried in the ground and used, it can withstand the external pressure and can also withstand the water pressure.

【0015】次に、管Pの耐圧偏平性能及び気密性能を
更に高めた管体構造を、図3に示した第2実施例の内外
面平滑合成樹脂管Pについて説明する。該管は、前記第
1実施例に示した管壁1を二重に重ね合わせて形成した
重層管壁に関する実施例である。該実施例の管Pは、前
記第1実施例において示した管壁1の外周面上に接着剤
5を塗布しながら、前記第1実施例で説明したと同様に
してプロフアイル10を重ね合わせながら順次接合し、
もう一層の外層管壁1Aを第1層の管壁1上に形成して
一体化した二重層構造の管Pとしたものである。勿論、
二重層構造に限らず、必要であれば三重層構造またはそ
れ以上の多層構造として実施できることは言うまでもな
い。第1層の管壁1と外層管壁1Aとの接着は、第1層
形成プロフアイル10の外周面、または第2層形成プロ
フアイル10の内周面に接着剤5を塗布して実施するこ
ともできる。該実施例の管Pは、第1層管壁1のプロフ
アイル10の継目上に外層管壁1Aが重なる状態に形成
してある。
Next, the structure of the pipe body in which the pressure resistance flatness and airtightness of the pipe P are further improved will be described for the inner and outer smooth synthetic resin pipe P of the second embodiment shown in FIG. The pipe is an example relating to a multi-layer pipe wall formed by overlapping the pipe wall 1 shown in the first embodiment in a double manner. In the pipe P of the embodiment, the profile 10 is superposed in the same manner as described in the first embodiment while applying the adhesive 5 on the outer peripheral surface of the pipe wall 1 shown in the first embodiment. While sequentially joining,
The outer layer tube wall 1A of the other layer is formed on the tube wall 1 of the first layer to form an integrated double layer tube P. Of course,
It is needless to say that the structure is not limited to the double-layer structure, and can be implemented as a triple-layer structure or a multilayer structure having more layers, if necessary. Adhesion between the tube wall 1 of the first layer and the tube wall 1A of the outer layer is performed by applying an adhesive 5 to the outer peripheral surface of the first layer forming profile 10 or the inner peripheral surface of the second layer forming profile 10. You can also The pipe P of the embodiment is formed such that the outer layer pipe wall 1A overlaps the seam of the profile 10 of the first layer pipe wall 1.

【0016】図4及び図5に示した第3,第4実施例の
内外面平滑合成樹脂管Pは、前記第1実施例に示した管
Pと同様に管壁の層が一層の管であって、耐圧偏平性能
をより一層高めることができるようにした管構造の実施
例である。その相違点は、管壁1を形成するプロフアイ
ル10の形状を、左右の縦壁11,13の他に上下の水
平壁15,16間を繋ぐ別の補強縦壁18を形成してあ
る形状としたものである。図4の実施例ではこの補強縦
壁18が一つ、図5の実施例では二つ形成してある。こ
のようにしたプロフアイル10を用いて形成した管P
は、管壁1の構造が、プロフアイル10が接当して、ま
たは接着されて形成された二つの連結壁4,4の間に、
内壁2と外壁3とを繋ぐ別の補強縦壁18が存在する管
体が得られることとなる。
The inner and outer surface smooth synthetic resin pipes P of the third and fourth embodiments shown in FIGS. 4 and 5 are pipes having a single layer of pipe wall like the pipe P shown in the first embodiment. Therefore, it is an embodiment of a tube structure capable of further enhancing the pressure resistance flatness performance. The difference is that the profile 10 forming the tube wall 1 has a shape in which, in addition to the left and right vertical walls 11 and 13, another reinforcing vertical wall 18 that connects the upper and lower horizontal walls 15 and 16 is formed. It is what In the embodiment shown in FIG. 4, one reinforcing vertical wall 18 is formed, and in the embodiment shown in FIG. 5, two reinforcing vertical walls 18 are formed. A tube P formed by using the profile 10 as described above.
Is the structure of the tube wall 1 between the two connecting walls 4 and 4 formed by abutting or adhering the profile 10
A tubular body having another reinforcing vertical wall 18 connecting the inner wall 2 and the outer wall 3 is obtained.

【0017】図6に示した第5実施例の内外面平滑合成
樹脂管Pは、更に別の管構造を示したものであって、プ
ロフアイル10の形状を、左右の縦壁11,13と上下
の水平壁15,16とが完全に繋がっていて内部に中空
室6を有する形状とし、一側の縦壁11の一部が内奥部
に凹入していて突出壁14と嵌合する凹入した開口部1
2を有する形状としたものである。このようにしたプロ
フアイル10を用いて形成した管Pは、管壁1の内部に
前記プロフアイル10に形成された中空室6をそのまま
備えた管体が得られることとなる。
The inner / outer surface smooth synthetic resin pipe P of the fifth embodiment shown in FIG. 6 shows another pipe structure, in which the profile 10 is formed into the left and right vertical walls 11 and 13. The upper and lower horizontal walls 15 and 16 are completely connected to each other, and the hollow chamber 6 is formed inside, and a part of the vertical wall 11 on one side is recessed in the inner depth to fit with the protruding wall 14. Recessed opening 1
It has a shape having 2. The pipe P formed by using the profile 10 thus obtained is a pipe body having the hollow chamber 6 formed in the profile 10 inside the pipe wall 1 as it is.

【0018】なお、該プロフアイル10は、上部水平壁
15及び左右の縦壁11,13の肉厚に比して下部水平
壁16の肉厚を厚く形成してある。このように、プロフ
アイル10の各壁の肉厚は均等肉厚に形成する必要はな
く、部分的に厚くまたは薄く形成することができる。
In the profile 10, the thickness of the lower horizontal wall 16 is made thicker than the thickness of the upper horizontal wall 15 and the left and right vertical walls 11, 13. As described above, the wall thickness of each wall of the profile 10 does not need to be formed to be uniform, and can be partially formed to be thick or thin.

【0019】図7に示した第6実施例の内外面平滑合成
樹脂管Pは、前記第1実施例で示した断面略正方形状と
したプロフアイル10において、左右の縦壁11,13
に形成してある開口部12と突出壁14との形成位置
を、それぞれの壁の上下方向中間位置に形成してある形
状としたものである。このようにしたプロフアイル10
を用いて形成した管Pは、管壁1の内外壁2,3の中間
位置において前記プロフアイル10が連結されている管
体が得られる。この実施例では、接着剤5を突出壁14
の内外両面に塗布し、開口部12を形成した縦壁11と
突出壁14とは開口部12の上下両面で接着連結されて
いる構造としてある。
The inner and outer surface smooth synthetic resin pipe P of the sixth embodiment shown in FIG. 7 is the profile 10 having the substantially square cross section shown in the first embodiment.
The formation positions of the opening 12 and the protruding wall 14 formed in the above are formed in the intermediate positions in the vertical direction of the respective walls. Profile file 10
The pipe P formed by using is a pipe body in which the profile 10 is connected at an intermediate position between the inner and outer walls 2 and 3 of the pipe wall 1. In this embodiment, the adhesive 5 is applied to the protruding wall 14
The vertical wall 11 and the protruding wall 14 which are applied to both inner and outer surfaces of the opening 12 and have the openings 12 are adhered and connected to the upper and lower surfaces of the opening 12.

【0020】本発明にいう管壁1を形成するプロフアイ
ル10の樹脂素材及び硬度は、製造する管体の種類や使
用目的に応じて任意に選定使用することができる。ま
た、必要によっては、プロフアイル10における左右の
縦壁11,13を耐圧偏平強度に優れた素材または硬度
のある素材で形成したり、また、例えば、管の内壁2を
構成する下部水平壁16部分の樹脂素材を、管内を流通
させる物質の種類や性質によって、耐摩耗性に優れた素
材とか、耐薬品性に優れた素材とかを選択し、管の外壁
3を構成する上部水平壁15部分の樹脂素材を、耐水性
・耐候性等に優れた素材とする等2種以上の樹脂素材を
使用してプロフアイル10を形成して管体を形成しても
よい。
The resin material and hardness of the profile 10 forming the tube wall 1 according to the present invention can be arbitrarily selected and used according to the type of pipe to be manufactured and the purpose of use. If necessary, the left and right vertical walls 11, 13 of the profile 10 may be made of a material having excellent pressure-resistant flat strength or a material having hardness, or, for example, a lower horizontal wall 16 constituting the inner wall 2 of the pipe. Depending on the type and properties of the substance that flows through the pipe, the resin material of the part is selected as a material having excellent wear resistance or a material having excellent chemical resistance, and the upper horizontal wall 15 part forming the outer wall 3 of the pipe is selected. The tubular body may be formed by forming the profile 10 by using two or more kinds of resin materials such as the above resin material having excellent water resistance and weather resistance.

【0021】以上本発明の代表的な実施例について説明
したが、本発明は必ずしも以上に説明した実施例構造の
もののみに限定されるものではなく、例えば、同一形状
のまたは異なる形状の2本のプロフアイルを使用してダ
ブルピツチ状に巻回してある管を得る等、本発明にいう
前記の構成要件を備え、かつ、本発明にいう目的を達成
し、以下にいう効果を有する範囲内において適宜改変し
て実施することができるものである。
Although a representative embodiment of the present invention has been described above, the present invention is not necessarily limited to the structure of the embodiment described above. For example, two wires having the same shape or different shapes can be used. Within the range of having the above-mentioned constitutional requirements of the present invention, such as obtaining a tube wound in a double pitch shape by using the profile of the above, and achieving the object of the present invention and having the following effects. It can be appropriately modified and implemented.

【0022】[0022]

【発明の効果】本発明は以上の説明から既に明らかなよ
うに、管壁を形成するプロフアイルの形状を、断面形状
が中空の方形状で、一側の縦壁に開口部を、他側の縦壁
に横外方に突出する突出壁を形成してある形状とし、こ
れらの開口部または突出壁の一方または双方に接着剤を
塗布して、開口部に後続の突出壁を挿入しながら順次螺
旋状に巻回し、接着剤を硬化させて連結する方法によっ
て、これらの開口部と突出壁との接当面が接着されて一
体的水密的に連結させ、内壁と外壁とが略平滑な円筒状
で、これら両壁間に放射方向に伸びる螺旋状の連結壁を
もつように構成したものであるから、合成樹脂素材だけ
で形成してある管体であっても、この放射方向に伸びる
連結壁によって耐圧偏平性能と気密性に優れた内外面平
滑合成樹脂管を得ることができる。また、管の成形に当
たっては、高度で複雑な技術を必要とすることなく、工
場以外の場所であっても任意の径の管体を効率よく製造
することができるという製造上における効果をも充分に
期待することができるものである。
As is apparent from the above description, the present invention has a profile of a tube wall having a hollow rectangular cross-section with an opening on one vertical wall and the other side. While forming a shape in which a protruding wall that protrudes laterally outward is formed on the vertical wall of, the adhesive is applied to one or both of these openings and the protruding wall, and the subsequent protruding wall is inserted into the opening. By sequentially spirally winding and curing the adhesive to connect, the contact surfaces of these openings and the projecting wall are bonded and integrally watertightly connected, and the inner wall and the outer wall are substantially smooth cylinders. Since it has a spiral connecting wall extending in the radial direction between these two walls, even in the case of a tubular body made only of a synthetic resin material, the connecting pipe extending in the radial direction. A wall made of smooth synthetic resin pipe with excellent flatness and pressure tightness It is possible. Further, in forming a pipe, it is possible to efficiently produce a pipe body having an arbitrary diameter even in a place other than a factory without requiring a sophisticated and complicated technique. Is what you can expect.

【図面の簡単な説明】[Brief description of drawings]

【図1】第1実施例を示す管の一部切欠き正面図。FIG. 1 is a partially cutaway front view of a pipe according to a first embodiment.

【図2】同管の管壁部分の断面図。FIG. 2 is a sectional view of a pipe wall portion of the pipe.

【図3】第2実施例を示す管壁部分の断面図。FIG. 3 is a sectional view of a pipe wall portion showing a second embodiment.

【図4】第3実施例を示す管壁部分の断面図。FIG. 4 is a sectional view of a pipe wall portion showing a third embodiment.

【図5】第4実施例を示す管壁部分の断面図。FIG. 5 is a sectional view of a pipe wall portion showing a fourth embodiment.

【図6】第5実施例を示す管壁部分の断面図。FIG. 6 is a sectional view of a pipe wall portion showing a fifth embodiment.

【図7】第6実施例を示す管壁部分の断面図。FIG. 7 is a sectional view of a pipe wall portion showing a sixth embodiment.

【図8】従来例を示す管壁部分の断面図。FIG. 8 is a sectional view of a tube wall portion showing a conventional example.

【符号の説明】[Explanation of symbols]

1 管壁 2 内壁 3 外壁 4 連結壁 5 接着剤 10 プロフアイル 11 一側の縦壁 12 開口部 13 他側の縦壁 14 突出壁 20 接当面 1A 外層管壁 1 pipe wall 2 inner wall 3 outer wall 4 connecting walls 5 adhesive 10 Profile 11 Vertical wall on one side 12 openings 13 Vertical wall on the other side 14 protruding wall 20 for the time being 1A Outer layer wall

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI // B29L 22:00 B29L 22:00 23:00 23:00 (58)調査した分野(Int.Cl.7,DB名) B29D 23/00 B29C 53/08 B29C 53/36 B29C 53/58 F16L 9/12 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI // B29L 22:00 B29L 22:00 23:00 23:00 (58) Fields surveyed (Int.Cl. 7 , DB name) B29D 23/00 B29C 53/08 B29C 53/36 B29C 53/58 F16L 9/12

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 断面形状が中空の方形状で、一側の縦壁
(11)に開口部(12)を有し他側の縦壁(13)から横外方に向
かって突出する突出壁(14)を有する帯状の合成樹脂製プ
ロフアイル(10)が螺旋状に巻回され、先行巻回プロフア
イル(10)の開口部(12)に後続巻回プロフアイル(10)の突
出壁(14)が挿入され、かつ、これらの開口部(12)と突出
壁(14)との接当面(20)が接着剤(5)によって接着され一
体的かつ水密的に連結され、内壁(2)と外壁(3)とが略平
滑な円筒状となっていて、これら両壁間に放射方向に伸
びる螺旋状の連結壁(4)が形成されている内外面平滑合
成樹脂管。
1. A vertical wall having a hollow cross section and one side.
A strip-shaped synthetic resin profile (10) having an opening (12) in (11) and a protruding wall (14) protruding laterally outward from the vertical wall (13) on the other side is spirally formed. The projecting wall (14) of the succeeding winding profile (10) is inserted into the opening (12) of the preceding winding profile (10) and these openings (12) and the projecting wall (10) are wound. The contact surface (20) with 14) is bonded by an adhesive (5) and is integrally and watertightly connected, and the inner wall (2) and the outer wall (3) have a substantially smooth cylindrical shape. A smooth inner and outer surface synthetic resin pipe in which spiral connecting walls (4) extending in the radial direction are formed between the walls.
【請求項2】 前記管壁(1)上に別の管壁(1A)が複数層
重層状にかつ一体的に形成されている請求項1に記載の
内外面平滑合成樹脂管。
2. The smooth inner and outer surface synthetic resin pipe according to claim 1, wherein another pipe wall (1A) is integrally formed on the pipe wall (1) in a multi-layered manner.
【請求項3】 管壁(1)が円筒状の内・外両壁(2),(3)
と、これら両壁(2),(3)間をつなぐ連結壁(4)とを有す
る二重壁管の製造方法であって、該管壁(1)を形成する
帯状のプロフアイルを、断面形状が中空の方形状で、一
側の縦壁(11)に開口部(12)を形成し他側の縦壁(13)に横
外方に向かって突出する突出壁(14)を形成してある合成
樹脂製プロフアイル(10)とし、該プロフアイル(10)の前
記開口部(12)または突出壁(14)の一方もしくは双方に接
着剤(5)を塗布し、先行巻回プロフアイル(10)の開口部
(12)に後続巻回プロフアイル(10)の突出壁(14)を挿入し
ながら順次螺旋状に巻回し、前記接着剤(5)を硬化させ
て、先行巻回プロフアイル(10)と後続巻回プロフアイル
(10)とを水密的かつ一体的に連結させる内外面平滑合成
樹脂管の製造方法。
3. The inner wall and the outer wall (2), (3) whose cylindrical wall (1) is cylindrical
And a connecting wall (4) connecting between these two walls (2) and (3), wherein a strip-shaped profile forming the pipe wall (1) is cross-sectioned. It has a hollow rectangular shape with an opening (12) formed in the vertical wall (11) on one side and a protruding wall (14) protruding laterally outward on the vertical wall (13) on the other side. The synthetic resin profile (10) is provided, and the adhesive (5) is applied to one or both of the opening (12) and the protruding wall (14) of the profile (10), and the preceding winding profile is used. (10) opening
While inserting the protruding wall (14) of the succeeding winding profile (10) into the (12), the spiral winding is sequentially performed, the adhesive (5) is cured, and the preceding winding profile (10) and the subsequent winding Winding profile
(10) A method for producing a synthetic resin pipe having smooth inner and outer surfaces, which is water-tightly and integrally connected to (10).
【請求項4】 請求項3に記載の内外面平滑合成樹脂管
の管壁(1)の外周面上、または、別の合成樹脂製プロフ
アイル(10)の内周面側に接着剤(5)を塗布し、当該プロ
フアイル(10)を螺旋状に巻回して外層管壁(1A)を形成
し、管壁(1)と一体的に接着して複数層の重層管を形成
する内外面平滑合成樹脂管の製造方法。
4. An adhesive (5) is provided on the outer peripheral surface of the pipe wall (1) of the smooth inner and outer surface synthetic resin pipe according to claim 3, or on the inner peripheral surface side of another synthetic resin profile (10). ) Is applied, and the profile (10) is spirally wound to form the outer wall (1A) of the outer wall, and the inner wall and the outer surface are integrally bonded to the wall (1) to form a multi-layered tube. Method for manufacturing smooth synthetic resin pipe.
JP2596595A 1995-01-19 1995-01-19 Inner / outer surface smooth synthetic resin tube and method of manufacturing the same Expired - Lifetime JP3393273B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2596595A JP3393273B2 (en) 1995-01-19 1995-01-19 Inner / outer surface smooth synthetic resin tube and method of manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2596595A JP3393273B2 (en) 1995-01-19 1995-01-19 Inner / outer surface smooth synthetic resin tube and method of manufacturing the same

Publications (2)

Publication Number Publication Date
JPH08192472A JPH08192472A (en) 1996-07-30
JP3393273B2 true JP3393273B2 (en) 2003-04-07

Family

ID=12180452

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2596595A Expired - Lifetime JP3393273B2 (en) 1995-01-19 1995-01-19 Inner / outer surface smooth synthetic resin tube and method of manufacturing the same

Country Status (1)

Country Link
JP (1) JP3393273B2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI107522B (en) * 1999-11-03 2001-08-31 Kwh Pipe Ab Oy Method and apparatus for producing spirally wound tubes
JP2002089893A (en) * 2000-09-12 2002-03-27 Daikin Ind Ltd Air conditioner
KR100554537B1 (en) * 2002-05-23 2006-02-22 민병이 High strength spiral pipe manufacturing equipment
FI115484B (en) 2003-02-25 2005-05-13 Kwh Pipe Ab Oy The hollow profile used to make the tube
KR100941170B1 (en) * 2008-02-29 2010-02-10 이두기 Pipe of intensity improvement type and the process of manufacture and the device
FI122388B (en) * 2010-01-22 2011-12-30 Kwh Pipe Ab Oy Hollow profile used in pipe making

Also Published As

Publication number Publication date
JPH08192472A (en) 1996-07-30

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