JPH05118477A - Underground composite resin tube - Google Patents
Underground composite resin tubeInfo
- Publication number
- JPH05118477A JPH05118477A JP3075774A JP7577491A JPH05118477A JP H05118477 A JPH05118477 A JP H05118477A JP 3075774 A JP3075774 A JP 3075774A JP 7577491 A JP7577491 A JP 7577491A JP H05118477 A JPH05118477 A JP H05118477A
- Authority
- JP
- Japan
- Prior art keywords
- wall
- reinforcing strip
- tube
- pipe
- composite resin
- 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.)
- Pending
Links
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、排水管、電線保護管、
電話線保護管など地中に敷設して使用されるもので、詳
しくは螺旋波形状に形成された合成樹脂製管壁の肉厚内
に金属薄板製の補強帯板を埋設してなる地中敷設用複合
樹脂管に関するものである。BACKGROUND OF THE INVENTION The present invention relates to a drainage pipe, an electric wire protection pipe,
It is used by laying in the ground such as a telephone line protection tube. Specifically, underground where a reinforcing strip made of a thin metal plate is embedded in the wall thickness of a synthetic resin tube wall formed in a spiral wave shape. The present invention relates to a composite resin pipe for laying.
【0002】[0002]
【従来の技術】この種の複合樹脂管として従来から知ら
れているものに、例えば、実開昭61ー141889号
公報で開示されたものがある。同公報には種々の管壁断
面形状のものが示されているが、公約数としての断面形
状を示すと図11のような断面構造を有する。2. Description of the Related Art Conventionally known composite resin tubes of this type are disclosed in, for example, Japanese Utility Model Laid-Open No. 61-141889. While various tube wall cross-sectional shapes are shown in the publication, the cross-sectional shape as a common divisor has a cross-sectional structure as shown in FIG.
【0003】図11において、01は螺旋波形状に形成され
た合成樹脂製の管壁、02は断面形状がコ字形でその開放
両端部に突出縁02a 、02a を有するステンレス鋼板など
金属薄板製の補強帯板であって、この補強帯板02を下向
きに開放する状態で上記管壁01の各山頂部01a とそれに
連なる両側壁部01b 、01b とに亘ってそれぞれ埋設する
ことにより、管軸線方向で相隣る補強帯板02、02の突出
縁02a 、02a が埋設された管壁01の各谷部01c の一部に
補強帯板が存在しない補強の切れ目部分Aを形成してい
た。In FIG. 11, 01 is a synthetic resin tube wall formed in a spiral wave shape, 02 is a thin metal plate such as a stainless steel plate having a U-shaped cross section and projecting edges 02a and 02a at its open both ends. A reinforcement strip, which is embedded in the pipe top 01 in the state where the strip strip 02 is opened downward and the side wall portions 01b and 01b continuous to the top portion 01a of the pipe wall 01. Thus, a reinforcing cutout portion A where no reinforcing strip exists is formed in a part of each valley portion 01c of the pipe wall 01 in which the projecting edges 02a, 02a of the adjacent reinforcing strips 02, 02 are buried.
【0004】[0004]
【発明が解決しようとする課題】以上のように構成した
従来の地中敷設用複合樹脂管は、この種の地中敷設管と
して多用されていたコンクリート製のヒューム管や鋳鉄
管に比べて軽量であるとともに可撓製に優れ、運搬や敷
設作業が容易であり、また、耐圧強度もヒューム管等と
比べて遜色のないものに構成できる利点を有するもの
の、管壁の谷部に補強の切れ目部分Aが存在するため、
曲線状に地中に敷設した場合、その補強の切れ目部分A
に静的荷重、動的荷重にともなって応力が集中作用して
割れやクラックを生起しやすい。The conventional composite resin pipe for underground laying constructed as described above is lighter in weight than the concrete fume pipe or cast iron pipe which is often used as this type of underground laying pipe. In addition, it has excellent flexibility, is easy to transport and lay, and has the advantage that it can be configured to have a pressure resistance comparable to that of a fume tube, but it has reinforcement cuts in the troughs of the tube wall. Since part A exists,
When laid in a curved line in the ground, the reinforcement break A
In addition, stress is concentrated on static loads and dynamic loads, and cracks and cracks are likely to occur.
【0005】また、道路の掘削や埋設管の掘り返しの際
に、つるはしや掘削機の先端刃などが不測に衝突して、
上記の切れ目部分Aを突き破ってしまう危険性があっ
た。本発明は上記のような問題点を解消するためになさ
れたものであって、軽量で、可撓性を有しながらも、局
部的な破損を極力抑制して、高い耐圧効果を発揮する地
中敷設用複合樹脂管を提供することを目的とする。Further, when excavating a road or excavating a buried pipe, a pickaxe or a tip blade of an excavator unexpectedly collides,
There was a risk of breaking through the cut portion A. The present invention has been made in order to solve the above-mentioned problems, and it is lightweight, has flexibility, and locally suppresses damage as much as possible, and exhibits a high pressure resistance effect. An object is to provide a composite resin pipe for inlaying.
【0006】[0006]
【課題を解決するための手段】本発明に係る地中敷設用
複合樹脂管は、螺旋波形状に形成された合成樹脂製管壁
内に埋設する金属薄板製の補強帯板が、管壁の各山頂部
または各谷部とそれらに連なる両側壁部とに亘る断面略
コ字状または略U字状とした第1の補強帯板と、管軸線
方向で相隣る上記第1の補強帯板の端部分に夫々重合す
るような断面形状をもつ第2の補強帯板とから構成され
ていることを特徴とする。In the composite resin pipe for underground installation according to the present invention, a reinforcing strip plate made of a thin metal plate embedded in a synthetic resin pipe wall formed in a spiral wave shape is A first reinforcing strip having a substantially U-shaped cross section or a substantially U-shaped cross section extending over each mountain peak portion or each valley portion and both side wall portions continuous with them, and the first reinforcing strip adjacent to each other in the pipe axis direction. It is characterized in that it is composed of a second reinforcing strip plate having a cross-sectional shape that overlaps with the end portion of the plate.
【0007】[0007]
【作用】本発明に係る地中敷設用複合樹脂管によれば、
管壁全体が螺旋波形状であるから、金属薄板製の補強帯
板を埋設したものであっても曲線状の配管を可能にする
に充分な可撓性を有しながら、軽くて敷設作業を容易に
行うことができる。そして、地中敷設状態では、土圧に
対して補強帯板が対抗して、変形等を招かないだけの強
大な耐圧強度を発揮し、また合成樹脂製管壁内に埋設し
た補強帯板には切れ目が全くないので、地中敷設管の掘
り返し時に突き破る虞れがない。According to the composite resin pipe for underground installation according to the present invention,
Since the entire pipe wall has a spiral wave shape, even if a reinforcing strip made of a thin metal plate is embedded, it is light enough to be installed while still being flexible enough to allow curved piping. It can be done easily. And, in the laid condition in the ground, the reinforcing strips counter the earth pressure and exert a great pressure resistance so as not to cause deformation, and the reinforcing strips embedded in the synthetic resin pipe wall Since there are no cuts, there is no risk of breaking through when digging underground pipes.
【0008】[0008]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図1乃至図3は本発明の一実施例を示し、同図に
おいて、1は断面台形状の螺旋波形状に形成された合成
樹脂製の管壁であり、2は断面台形状で、ステンレス鋼
板などの金属薄板製の第1の補強帯板である。Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show an embodiment of the present invention, in which 1 is a synthetic resin tube wall formed in a spiral wave shape with a trapezoidal cross section, and 2 is a trapezoidal cross section, and a stainless steel plate. Is a first reinforcing strip made of a thin metal plate such as.
【0009】2’は上記第1の補強帯板2よりも上辺寸
法ならびに開放部の幅寸法がやゝ小さい断面台形状で、
上記と同様にステンレス鋼板などの金属薄板製の第2の
補強帯板であって、上記第1の補強帯板2は上記管壁1
の各山頂部1aとそれに連なる両側壁部1b、1bとに亘っ
て、管壁1の肉厚内に下向き開放姿勢で埋設されている
と共に、上記第2の補強帯板2’は上記管壁1の各谷部
1cとそれに連なる両側壁部1b、1bとに亘って管壁1の肉
厚内に上向き開放姿勢で埋設され、もって第1の補強帯
板2の両側板部分2b、2bと第2の補強帯板2’の両側板
部分2b’、2b’とが管壁1の両側壁部分1b、1bでそれぞ
れ二重に重合されている。Reference numeral 2'denotes a trapezoidal cross section in which the upper side dimension and the open portion width dimension are slightly smaller than those of the first reinforcing strip plate 2,
Similarly to the above, it is a second reinforcing strip made of a thin metal plate such as a stainless steel plate, wherein the first reinforcing strip 2 is the pipe wall 1
Is embedded in the wall thickness of the pipe wall 1 in a downwardly open posture over each mountain top portion 1a and both side wall portions 1b, 1b connected to the mountain top portion 1a, and the second reinforcing strip 2'is formed on the pipe wall. Each trough of 1
1c and both side wall portions 1b, 1b connected to it are embedded in the wall thickness of the pipe wall 1 in an upward open posture, so that both side plate portions 2b, 2b of the first reinforcement strip 2 and the second reinforcement strip Both side plate portions 2b ′, 2b ′ of the plate 2 ′ are double-polymerized on both side wall portions 1b, 1b of the tube wall 1, respectively.
【0010】なお、上記第1、第2の補強帯板2、2’
は図3で明示しているように、多数の小孔3・・・が形
成されたパンチングメタルであるが、小孔をもたない平
板であってもよい。次に、本発明の別な実施例について
列記する。The first and second reinforcing strips 2, 2 '
3 is a punching metal in which a large number of small holes 3 ... Are formed, as shown in FIG. 3, but it may be a flat plate having no small holes. Next, another embodiment of the present invention will be listed.
【0011】.図4に示す実施例は、上記合成樹脂製
の管壁1を、断面弧状の螺旋波形状に形成するととも
に、第1の補強帯板2および第2の補強帯板2’も管壁
1の断面形状に合わせて断面弧状にしたものである。[0011]. In the embodiment shown in FIG. 4, the synthetic resin pipe wall 1 is formed in a spiral wave shape having an arc-shaped cross section, and the first reinforcing strip plate 2 and the second reinforcing strip plate 2'are also formed of the pipe wall 1. It has an arcuate cross section in accordance with the cross sectional shape.
【0012】.図5に示す実施例は、管壁1の断面形
状が図1、図2で示す実施例と同様に断面台形状の螺旋
波形状であり、第2の補強帯板2’の両側板部分2b’、
2b’の内側に、その両側に位置する第1の補強帯板2、
2のそれぞれの一方の側板部分2b、2bが重合位置するよ
うに、かみ合わせ配置したものである。[0012]. In the embodiment shown in FIG. 5, the cross-sectional shape of the tube wall 1 is a spiral wave shape having a trapezoidal cross-section like the embodiments shown in FIGS. 1 and 2, and both side plate portions 2b of the second reinforcing strip 2 '. ',
Inside the 2b ', the first reinforcing strips 2 located on both sides thereof,
The two side plate portions 2b, 2b of each of the two are arranged so as to overlap with each other.
【0013】.図6に示す実施例は、管壁1の断面形
状が図4で示す実施例と同様に断面弧状の螺旋状に形成
されているとともに、その断面形状に合わせて断面弧状
に形成された第1の補強帯板2と第2の補強帯板2’と
を図5に示す実施例と同様にかみ合わせ配置したもので
ある。.. In the embodiment shown in FIG. 6, the cross-sectional shape of the pipe wall 1 is formed in a spiral shape having an arc-shaped cross-section as in the embodiment shown in FIG. 4, and the first shape is formed in an arc-shaped cross-section according to the cross-sectional shape. The reinforcing strip plate 2 and the second reinforcing strip plate 2'are interlocked and arranged as in the embodiment shown in FIG.
【0014】.図7乃至図10に示す実施例は、上記第
1の補強帯板2と第2の補強帯板2’との断面形状を互
いに異にして両者の端部分を互いに重合させたものであ
り、管壁1内への埋設構造は上記した各実施例と変わら
ないため、第1、第2の補強帯板2、2’のみを示して
いる。.. In the embodiment shown in FIGS. 7 to 10, the first reinforcing strip 2 and the second reinforcing strip 2 ′ are different in cross-sectional shape from each other, and end portions of both are superposed on each other. Since the structure of embedding in the pipe wall 1 is the same as that of the above-mentioned respective embodiments, only the first and second reinforcing strips 2 and 2'are shown.
【0015】以上の各実施例では、第1の補強帯板2と
第2の補強帯板2’との重合部に樹脂が介在するもので
示したが、補強帯板2、2’どうしが直接接触する所謂
メタルタッチ状にしても良い。In each of the above embodiments, the resin is interposed in the overlapping portion between the first reinforcing strip 2 and the second reinforcing strip 2 ', but the reinforcing strips 2 and 2'are different from each other. You may make it what is called a metal touch shape which makes direct contact.
【0016】また記述実施例では補強帯板2、2’を管
壁1の肉厚中央に埋設したが、この補強帯板2、2’は
管壁1の内側に偏らせてもよい。殊に、金属板に合成樹
脂をラミネートした素材を用いて補強帯板2、2’を形
成した場合、この補強帯板2、2’の内側には、前記金
属板にラミネートした合成樹脂があるので、管壁1を構
成するための合成樹脂層を形成しなくてもよい。Although the reinforcing strips 2 and 2'are embedded in the center of the wall thickness of the pipe wall 1 in the described embodiment, the reinforcing strips 2 and 2'may be biased toward the inside of the pipe wall 1. Particularly, when the reinforcing strips 2 and 2 ′ are formed by using a material obtained by laminating a synthetic resin on a metal plate, there is a synthetic resin laminated on the metal plate inside the reinforcing strips 2 and 2 ′. Therefore, it is not necessary to form the synthetic resin layer for forming the tube wall 1.
【0017】[0017]
【発明の効果】以上のように本発明の地中敷設用複合樹
脂管によれば、螺旋波形状の管壁の肉厚内に埋設された
金属薄板製の第1および第2の補強帯板が切れ目のない
状態で連続するから、この管を屈曲させて地中に敷設し
た際に、その一部に応力が集中することがないばかりで
なく、敷設個所の掘削時においてつるはしや掘削機の先
端刃などが衝突したとしても、そこを突き破って孔をあ
けることを確実に防止できて冒頭の従来品に比べて全体
として耐久性を著しく向上することができる。As described above, according to the composite resin pipe for underground laying of the present invention, the first and second reinforcing strips made of a thin metal plate are embedded in the wall thickness of the spiral wave pipe wall. Since the pipes are continuous without breaks, when the pipe is bent and laid in the ground, stress does not concentrate on a part of it, and the pickaxe and excavator are not Even if the tip blade collides, it can be reliably prevented from breaking through and punching a hole, and the durability as a whole can be remarkably improved as compared with the conventional product at the beginning.
【0018】特に、管壁の山頂部および谷部の両側壁部
分において補強帯板を二重とすることによって、耐圧強
度をよりアップでき、その分だけ山頂部および谷部の肉
厚を小さくできるので、可撓性にも優れた管を提供する
ことができるといった効果を奏する。In particular, the pressure-resistant strength can be further increased and the wall thickness of the crest and the trough can be correspondingly reduced by doubling the reinforcing strips on both side walls of the crest and the trough of the pipe wall. Therefore, it is possible to provide a tube having excellent flexibility.
【図1】一部切欠き側面図、1 is a partially cutaway side view,
【図2】要部の拡大縦断側面図、FIG. 2 is an enlarged vertical side view of a main part,
【図3】補強帯板の一例を示す斜視図、FIG. 3 is a perspective view showing an example of a reinforcing strip plate,
【図4】別な実施例を示す要部の拡大縦断側面図、FIG. 4 is an enlarged vertical sectional side view of a main part showing another embodiment,
【図5】別な実施例を示す要部の拡大縦断側面図、FIG. 5 is an enlarged vertical cross-sectional side view of essential parts showing another embodiment,
【図6】別な実施例を示す要部の拡大縦断側面図、FIG. 6 is an enlarged vertical sectional side view of a main part showing another embodiment.
【図7】別な実施例を示す要部の拡大縦断側面図、FIG. 7 is an enlarged vertical cross-sectional side view of a main part showing another embodiment,
【図8】別な実施例を示す要部の拡大縦断側面図、FIG. 8 is an enlarged vertical cross-sectional side view of essential parts showing another embodiment,
【図9】別な実施例を示す要部の拡大縦断側面図、FIG. 9 is an enlarged vertical cross-sectional side view of a main part showing another embodiment,
【図10】別な実施例を示す要部の拡大縦断側面図、FIG. 10 is an enlarged vertical cross-sectional side view of a main part showing another embodiment,
【図11】従来例の要部の拡大縦断側面図。FIG. 11 is an enlarged vertical sectional side view of a main part of a conventional example.
1 管壁 1a 山頂部 1b 側壁部 1c 谷部 2 第1の補強帯板 2’ 第2の補強帯板 1 Pipe Wall 1a Peak 1b Side Wall 1c Valley 2 First Reinforcement Strip 2'Second Reinforcement Strip
Claims (1)
の肉厚内に、金属薄板製の補強帯板を埋設してなる地中
敷設複合樹脂管であって、上記補強帯板が、管壁の各山
頂部または各谷部とそれらに連なる両側壁部とに亘る断
面略コ字状または略U字状とした第1の補強帯板と、管
軸線方向で相隣る上記第1の補強帯板の端部分に夫々重
合するような断面形状をもつ第2の補強帯板とから構成
されていることを特徴とする地中敷設用複合樹脂管。1. An underground laying composite resin pipe in which a reinforcing strip made of a thin metal plate is embedded within the wall thickness of a synthetic resin pipe wall formed in a spiral wave shape, wherein the reinforcing strip is , A first reinforcing strip having a substantially U-shaped or U-shaped cross-section extending over each crest or each trough of the pipe wall and both side walls connected to the crest, and the above-mentioned first adjacent strips in the pipe axial direction. 1. A composite resin pipe for underground installation, characterized in that it is composed of a second reinforcing strip having a cross-sectional shape such that each of the end portions of the first reinforcing strip is superposed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3075774A JPH05118477A (en) | 1991-03-14 | 1991-03-14 | Underground composite resin tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3075774A JPH05118477A (en) | 1991-03-14 | 1991-03-14 | Underground composite resin tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH05118477A true JPH05118477A (en) | 1993-05-14 |
Family
ID=13585893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3075774A Pending JPH05118477A (en) | 1991-03-14 | 1991-03-14 | Underground composite resin tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH05118477A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990001314A (en) * | 1997-06-13 | 1999-01-15 | 오오마쓰 세이이찌 | Pressure Resistance Synthetic Resin Pipe |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6230080B2 (en) * | 1984-11-05 | 1987-06-30 | Hata Iron Works | |
JPS6230081B2 (en) * | 1980-11-20 | 1987-06-30 | Kobe Steel Ltd |
-
1991
- 1991-03-14 JP JP3075774A patent/JPH05118477A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6230081B2 (en) * | 1980-11-20 | 1987-06-30 | Kobe Steel Ltd | |
JPS6230080B2 (en) * | 1984-11-05 | 1987-06-30 | Hata Iron Works |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990001314A (en) * | 1997-06-13 | 1999-01-15 | 오오마쓰 세이이찌 | Pressure Resistance Synthetic Resin Pipe |
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