JPS63130985A - Manufacture of porous bend - Google Patents
Manufacture of porous bendInfo
- Publication number
- JPS63130985A JPS63130985A JP61278236A JP27823686A JPS63130985A JP S63130985 A JPS63130985 A JP S63130985A JP 61278236 A JP61278236 A JP 61278236A JP 27823686 A JP27823686 A JP 27823686A JP S63130985 A JPS63130985 A JP S63130985A
- Authority
- JP
- Japan
- Prior art keywords
- bent
- tube
- outer tube
- pipe
- tubes
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000000945 filler Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 16
- 239000000463 material Substances 0.000 description 7
- 239000000057 synthetic resin Substances 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 5
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 239000011083 cement mortar Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 産業上の利用分野 本発明は多孔曲り管の製造方法に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to a method for manufacturing a perforated bent pipe.
従来の技術
複数の電線等を地中に埋設する場合に、施工性の向上と
強度の向上とをはかるため、管軸方向の多条孔を有する
充填材を外管の内部に配置した多孔管を、利用するもの
が、従来たとえば実願昭６０−５３３２０号において提
案されている。このような多孔管を製造する場合には、
従来複数の棒状の中子を長手方向に配置した外管内に充
填材を充填して硬化させ、その後中子を充填材から引抜
いて多条孔を形成するのが一般的となっている。Conventional technology A perforated pipe in which a filler material with multiple holes in the direction of the pipe axis is placed inside the outer pipe in order to improve workability and strength when burying multiple electric wires underground. A method utilizing the above has been proposed in the past, for example, in Utility Model Application No. 53320/1983. When manufacturing such perforated pipes,
Conventionally, it has been common practice to fill an outer tube in which a plurality of rod-shaped cores are arranged in the longitudinal direction with a filler material, to harden the material, and then to pull out the cores from the filler material to form multi-striped holes.
発明が解決しようとする問題点
ところが、このような従来の方法では、外管に曲り管を
用いて多孔曲り管を製造する場合には。Problems to be Solved by the Invention However, in the case of manufacturing a multi-hole bent tube using a bent tube as the outer tube, such a conventional method cannot be solved.
中子として外管の曲り管と同様の曲率を有するものを用
いる必要があるが、充填材が硬化後、このような曲率を
有する中子を引抜くことは６通常の離型剤を塗布するだ
けでは非常に困難であるという問題点がある。It is necessary to use a core with the same curvature as the curved outer tube, but after the filler has hardened, it is impossible to pull out the core with such a curvature.6 Apply a normal mold release agent. The problem is that it is extremely difficult to do it alone.
本発明は上記のような問題点を解決し、充填材が硬化後
に中子を引抜くような操作を行なわない多孔曲り管の製
造方法を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a method for manufacturing a porous bent pipe that does not involve pulling out the core after the filler has hardened.
問題点を解決するための手段
上記問題点を解決するため本発明の多孔曲り管の製造方
法は、複数の可撓性管を曲り外管内に長手方向に配置し
て、前記外管と可撓性管との間に充填材を充填すること
を特徴とするものである。Means for Solving the Problems In order to solve the above-mentioned problems, the method of manufacturing a perforated bent tube of the present invention includes arranging a plurality of flexible tubes in a longitudinal direction within a bent outer tube, and connecting the outer tube with the flexible tube. It is characterized by filling the gap with the sexual canal with a filler.
作用
上記の構成により、曲り外管内に可撓性管を配置するの
で、可撓性管を曲り外管の曲率に容易に合わせることが
でき、しかも充填材が硬化すればそのままの状態で多条
孔が形成され、容易に多孔曲り管を製造することができ
る。Effect With the above configuration, the flexible tube is placed inside the bent outer tube, so the flexible tube can be easily adjusted to the curvature of the bent outer tube, and moreover, once the filler hardens, it can be made into multiple strips as it is. Holes are formed, and a multi-hole bent pipe can be easily manufactured.
曲り外管および可撓性管には、金属製管、金属性蛇腹管
、合成樹脂製管および金属−合成樹脂複合管などがある
。Examples of bent outer tubes and flexible tubes include metal tubes, metal bellows tubes, synthetic resin tubes, and metal-synthetic resin composite tubes.
実施例
本発明の実施例を第１図および第２図に基づいて説明す
る。第１図および第２図は本発明の実施例により製造さ
れた多孔曲り管１を示すものである。多孔曲り管１は、
鋳鉄製の曲り外管２と、その曲り外管２の内部に曲率に
合わせて長手方向に配置された複数本の金属製蛇腹管３
と、前記曲り外管２の内壁２ａと金属製蛇腹管３の外壁
３ａとの間に充填されたセメントモルタルを用いた充填
材４層からなり、前記金属製蛇腹管３により多条孔５が
形成され、かつこの多条孔５の両端には外ひろがりのテ
ーパ面６が形成されており、このテーパ面６は電線等を
多条孔５に挿入しゃすくするためのガイド部として利用
されるものである６次に第１図および第２図に示す多孔
曲り管１の製造方法について説明する。Embodiment An embodiment of the present invention will be explained based on FIGS. 1 and 2. 1 and 2 show a perforated bent pipe 1 manufactured according to an embodiment of the present invention. The porous bent pipe 1 is
A bent outer tube 2 made of cast iron, and a plurality of metal bellows tubes 3 arranged in the longitudinal direction according to the curvature inside the bent outer tube 2.
It consists of four layers of filling material using cement mortar filled between the inner wall 2a of the bent outer tube 2 and the outer wall 3a of the metal bellows tube 3, and the metal bellows tube 3 has a multi-striped hole 5. A tapered surface 6 is formed at both ends of the multi-striped hole 5, and this tapered surface 6 is used as a guide portion for easily inserting an electric wire or the like into the multi-striped hole 5. Next, a method for manufacturing the perforated bent pipe 1 shown in FIGS. 1 and 2 will be described.
鋳鉄製の曲り外管２の中に、複数本の可撓性の金属製蛇
腹管３を前記曲り外管２の曲率に合わせて曲げて配置す
る。金属製蛇腹管３は、多条孔５の種類、径などに応じ
て大径のもの、小径のものを適宜用い（本実施例・・・
大管２本、細管３本を２段に配ｌ！り 、曲り外管２内
の所定位置に長手方向に沿って配置する。その状態で曲
り外管２′の内壁２ａと各金属製蛇腹管３の外壁３ａと
の間にセメントモルタルからなる充填材４を充填する。A plurality of flexible metal bellows tubes 3 are bent and arranged in a bent outer tube 2 made of cast iron according to the curvature of the bent outer tube 2. The metal bellows pipe 3 may be of a large diameter or a small diameter depending on the type and diameter of the multi-striped hole 5 (in this example...
Two large tubes and three small tubes arranged in two stages! It is placed at a predetermined position inside the bent outer tube 2 along the longitudinal direction. In this state, a filling material 4 made of cement mortar is filled between the inner wall 2a of the bent outer tube 2' and the outer wall 3a of each metal bellows tube 3.
多条孔５の両端部のテーパ面６は、充填材４を充填する
際に前記両端部に断面三角形状のゴムリング（図示せず
）をはめ合わせるなどの手段により形成することができ
る。The tapered surfaces 6 at both ends of the multi-strip hole 5 can be formed by fitting rubber rings (not shown) having a triangular cross section to both ends when filling the filler 4.
以上のようにして多孔曲り管１を製造するが。The porous bent pipe 1 is manufactured as described above.
曲り外管２内に可撓性の金属製蛇腹管３を配置するので
、曲り外管２の曲率に合わせて自由に曲げることができ
、しかもその金属製蛇腹管３を抜き去ることなく、その
金属製蛇腹管３によって多条孔５を形成するので、極め
て容易に任意の曲率の多孔曲り管を製造することができ
る。Since the flexible metal bellows tube 3 is placed inside the curved outer tube 2, it can be bent freely according to the curvature of the curved outer tube 2, and the metal bellows tube 3 can be bent without being removed. Since the multi-striped holes 5 are formed by the metal bellows pipe 3, a multi-hole bent pipe with an arbitrary curvature can be manufactured very easily.
なお、上記実施例では、曲り外管として鋳鉄管を用い、
可撓性管として金属製蛇腹管を用いたが。In addition, in the above embodiment, a cast iron pipe is used as the bent outer pipe,
A metal bellows tube was used as the flexible tube.
いずれも必要に応じて金属製管、金属製蛇腹管、合成樹
脂管、金属と合成樹脂との複合管などを選択することが
でき、またこの多孔曲り管を電線の埋設に用いる場合可
撓性管にいわゆる電線保護管として用いられているもの
を使用すればよい、また充填材としてはセメントモルタ
ルのほか、必要に応じて合成樹脂などを用いることもで
きる。In either case, metal pipes, metal bellows pipes, synthetic resin pipes, composite pipes of metal and synthetic resin, etc. can be selected as required, and when this perforated bent pipe is used for burying electric wires, it is flexible. What is necessary is to use a pipe that is used as a so-called electric wire protection pipe, and as a filler, in addition to cement mortar, synthetic resin or the like can be used as needed.
発明の効果
以上のように本発明によれば１曲り外管の内部に可撓性
管を長手方向に配置するので１曲り外管の曲率に合わせ
て自由に曲げることができ、しかも充填材を充填し、そ
れが硬化すれば、可撓性管を抜き去ることなくその可撓
性管によって多条孔を形成するので、極めて容易に多孔
曲り管を製造することができる。Effects of the Invention As described above, according to the present invention, since the flexible tube is arranged in the longitudinal direction inside the single-curve outer tube, it can be bent freely according to the curvature of the single-curve outer tube. Once filled and cured, multi-striped holes are formed using the flexible tube without removing it, making it possible to manufacture multi-hole bent tubes very easily.
第１図は本発明の一実施例により製造された多孔曲り管
の断面図、第２図は第１図のＡ−Ａ線矢視図である。
２・・・曲り外管、３・・・金属製蛇腹管（可撓性管）
。
４・・・充填材、５・・・多条孔。FIG. 1 is a sectional view of a perforated bent pipe manufactured according to an embodiment of the present invention, and FIG. 2 is a view taken along the line A--A in FIG. 1. 2...Bent outer tube, 3...Metal bellows tube (flexible tube)
. 4...Filling material, 5...Multi-striped hole.
Claims (1)
、前記外管と可撓性管との間に充填材を充填することを
特徴とする多孔曲り管の製造方法。1. A method for manufacturing a porous bent tube, which comprises arranging a plurality of flexible tubes in the longitudinal direction within a bent outer tube, and filling a space between the outer tube and the flexible tube with a filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61278236A JPS63130985A (en) | 1986-11-20 | 1986-11-20 | Manufacture of porous bend |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61278236A JPS63130985A (en) | 1986-11-20 | 1986-11-20 | Manufacture of porous bend |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63130985A true JPS63130985A (en) | 1988-06-03 |
Family
ID=17594512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61278236A Pending JPS63130985A (en) | 1986-11-20 | 1986-11-20 | Manufacture of porous bend |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63130985A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200497716Y1 (en) * | 2023-11-08 | 2024-02-02 | 주식회사 에드솔 | loop box device for transporting of chemical substance |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5263925A (en) * | 1975-11-25 | 1977-05-26 | Sumitomo Metal Ind | Method of production of fiber reinforced concrete bend |
-
1986
- 1986-11-20 JP JP61278236A patent/JPS63130985A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5263925A (en) * | 1975-11-25 | 1977-05-26 | Sumitomo Metal Ind | Method of production of fiber reinforced concrete bend |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200497716Y1 (en) * | 2023-11-08 | 2024-02-02 | 주식회사 에드솔 | loop box device for transporting of chemical substance |
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