JP2006110826A - Lining execution method of branch pipeline part of pipeline and branch lining pipe used therein - Google Patents

Lining execution method of branch pipeline part of pipeline and branch lining pipe used therein Download PDF

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JP2006110826A
JP2006110826A JP2004299804A JP2004299804A JP2006110826A JP 2006110826 A JP2006110826 A JP 2006110826A JP 2004299804 A JP2004299804 A JP 2004299804A JP 2004299804 A JP2004299804 A JP 2004299804A JP 2006110826 A JP2006110826 A JP 2006110826A
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pipe
branch
lining
opening
diameter
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JP4601383B2 (en
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Shigeki Akimoto
栄器 秋元
Hamao Yamashiro
浜夫 山城
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Adachi Construction and Industry Co Ltd
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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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/179—Devices for covering leaks in pipes or hoses, e.g. hose-menders specially adapted for bends, branch units, branching pipes or the like

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  • Mechanical Engineering (AREA)
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a lining execution method of the branch pipeline part of a pipeline constituted so as to eliminate the processing requiring much labor in a branch part to enhance execution efficiency. <P>SOLUTION: A branch lining pipe, which is composed of a cylindrical body comprising a thermoplastic synthetic resin having a diameter smaller than that of a branch pipeline and the flat plate-shaped flange part, which is provided so as to be connected to one end of the cylindrical body and has an outer diameter larger than the diameter of the opening part of the branch pipeline, is heated and softened to be drawn into the branch pipeline part from a main pipe side in this state. The cylindrical body of the lining pipe is filled with a heating medium to be pressurized and heated, and the cylindrical body is diametrically expanded to line the inner surface of the branch pipeline. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、本管と該本管に連通する取付け管（枝管ともいう）とを有してなる管路の分岐部におけるライニング施工方法に関し、特には、小径管に適用されて好適な管路の分岐管路部のライニング施工方法に関する。
本発明の関連する技術分野は、本発明の技術的手段が適用される技術分野であれば、その用途に限定されない。すなわち、本発明は直接的には下水道管路を対象とするが、その他、水道管、ガス管、更には空気導管等がその対象に含まれる。
本発明はまた、当該管路が地中のもの、地上のもの、更には建物内でのもの、等その設置の態様にも限定されない。 The present invention relates to a lining construction method in a branch portion of a pipeline having a main pipe and a mounting pipe (also referred to as a branch pipe) communicating with the main pipe, and in particular, a pipe suitable for being applied to a small-diameter pipe. It is related with the lining construction method of the branch pipe part of a road.
A technical field related to the present invention is not limited to its use as long as the technical means of the present invention is applied. That is, the present invention directly targets sewer pipes, but other than that, water pipes, gas pipes, air pipes and the like are included in the object.
In addition, the present invention is not limited to the mode of installation of the pipe, such as those in the ground, those on the ground, or in a building.

本出願人らは先に、1)特開平５−１２６２９４号公報（以下「先行発明１」という）及び2)特開２００１−１２４２４３号公報（同じく「先行発明２」により、下水道管に特定して、その分岐管路部の補修方法を提案した。
すなわち、先行発明１の当該枝管の補修方法によれば、枝管を有する本管の内面に更生管を挿入して本管内面を更生する工程と、前記枝管と前記更生管を削孔処理にて接続する工程と、前記枝管内に挿入可能な筒体とこの筒体の一端に設けられ電線を埋設した合成樹脂製のフランジからなる止水部材を準備する工程と、前記止水部材の筒体を前記更生管内から前記枝管内へ挿入させ前記フランジを前記更生管内面に当接させる工程と、前記電線に通電して前記フランジを加熱しかつ前記更生管内面からの空気圧により前記フランジを前記更生管の内面に溶融圧着させる工程とを含む構成を採る。
この先行発明１によれば、一連の作業により、本管から枝管にわたって補修並びに止水処理が行え、補修が効率良くでき、止水処理も簡単かつ確実にできるという利便性がある。
しかしながら、当該先行発明１においては、その止水部材における筒体の素材として熱硬化性樹脂を使用するものであるので、曲がりを有する取付け管に対して該筒体は十分な追従性を有さず、当該曲がり部内において褶曲変形が生じ、硬化に伴いその変形はそのまま残留するという問題がある。 The applicants first identified a sewer pipe according to 1) Japanese Patent Laid-Open No. 5-126294 (hereinafter referred to as “prior invention 1”) and 2) Japanese Patent Laid-Open No. 2001-124243 (also “prior invention 2”). Then, the repair method of the branch pipe part was proposed.
That is, according to the repair method of the branch pipe of the prior invention 1, the step of inserting a rehabilitation pipe into the inner face of the main pipe having a branch pipe to rehabilitate the inner face of the main pipe, and drilling the branch pipe and the rehabilitation pipe A step of connecting by processing, a step of preparing a water stop member comprising a cylindrical body that can be inserted into the branch pipe and a synthetic resin flange provided at one end of the cylindrical body, and the water stop member Inserting the cylindrical body from the rehabilitation pipe into the branch pipe and bringing the flange into contact with the inner surface of the rehabilitation pipe; heating the flange by energizing the wire; and the air pressure from the inner surface of the rehabilitation pipe And a step of melt-compression bonding to the inner surface of the rehabilitation pipe.
According to this prior invention 1, there is a convenience that repair and water stop treatment can be performed from the main pipe to the branch pipe by a series of operations, repair can be performed efficiently, and water stop treatment can be performed easily and reliably.
However, in the said prior invention 1, since a thermosetting resin is used as a raw material of the cylinder in the water stop member, the cylinder has a sufficient followability with respect to a bent mounting pipe. However, there is a problem that bending deformation occurs in the bent portion and the deformation remains as it is cured.

先行発明２はこの先行技術１の問題点に鑑みなされたものである。
すなわち、該先行発明２の管路の分岐部の補修方法によれば、本管に穿孔部を介して取付け管が連通状に取り付けられ、少なくとも該本管の穿孔部回りの内面は熱可塑性合成樹脂素材が露出してなる分岐部において、当該分岐部並びに取付け管部分の止水を行う補修方法であって、
前記取付け管内に密着状に挿入可能な熱可塑性合成樹脂よりなる筒体と；この筒体の一端に設けられ前記穿孔径よりも大径にして前記本管の熱可塑性合成樹脂素材と同一材料よりなるフランジ部と；からなる補修管を、該補修管の筒体の全体を包む気密状の保温袋に収納し、
前記補修管を収納した保温袋を、該保温袋内に加熱媒体を送り込みつつ前記補修管の筒体の径を縮径状態となすとともに保温袋とともに該筒体を前記本管より前記穿孔部を介して前記取付け管内に引き入れるとともに、前記穿孔部において、前記補修管のフランジ部を前記本管の内面に当接させ、
前記補修管の筒体内より加熱及び加圧して前記筒体を拡径膨張させるとともに、前記補修管のフランジ部を前記本管の内面に当接させた状態で、該フランジ部を融着一体化させる、ことを特徴とする。
これによれば補修管の取付け管への引き込みは保温袋を介してなされ、補修管に無理な力が作用せず、伸び変形が生じない。また、補修管を軟質化するので、取付け管の曲がりに良好に追従する。
しかして、この先行発明２によれば、上記先行発明１の問題点を除去できるうえ、本管のみならず取付け管との分岐部及び取付け管の全体をその内面から一連かつ一体的に補修・止水でき、水の浸入を一切阻止できる。また、その補修筒にポリエチレン製素材を使用するので、耐食性、耐久性に優れ、従来の問題点であった臭いや曲がり部での褶曲変形の問題がない。
しかしながら当該先行発明２によれば、保温袋の使用（袋の引張作業）並びにその処理（撤去）に手間を要し、手間を要するものとなり、施工効率の向上が期待されるところとなっている。
なお又、当該先行発明１においては、分岐部の開口部に当接するフランジ部が管渠の曲率に予め適合する複雑な形状を採り、その成形のみならず分岐部での設置操作に手間を採る等の問題点も指摘される。この点は先行発明２も同様である。
特開平５−１２６２９４号公報 特開２００１−１２４２４３号公報 Prior invention 2 has been made in view of the problems of prior art 1.
That is, according to the repair method of the branch portion of the pipe line of the prior invention 2, the attachment pipe is attached to the main pipe through the perforated part, and at least the inner surface around the perforated part of the main pipe is thermoplastic synthetic. In the branch portion where the resin material is exposed, it is a repair method for water-stopping the branch portion and the attachment pipe portion,
A cylinder made of a thermoplastic synthetic resin that can be inserted in close contact with the mounting pipe; and made of the same material as the thermoplastic synthetic resin material of the main pipe provided at one end of the cylinder and having a diameter larger than the bore diameter A repair pipe comprising: a flange portion; and an airtight heat insulation bag that wraps the entire tubular body of the repair pipe,
The heat insulation bag containing the repair pipe is brought into a state where the diameter of the cylinder of the repair pipe is reduced while a heating medium is fed into the heat insulation bag, and the perforated portion is connected to the main body together with the heat insulation bag from the main pipe. And withdrawing into the mounting pipe through, in the perforated portion, the flange portion of the repair pipe abuts the inner surface of the main pipe,
The cylinder is expanded and expanded by heating and pressurizing from inside the cylinder of the repair pipe, and the flange is fused and integrated in a state where the flange of the repair pipe is in contact with the inner surface of the main pipe. It is characterized by that.
According to this, the repair pipe is drawn into the attachment pipe through the heat insulating bag, and an excessive force does not act on the repair pipe, so that no elongation deformation occurs. Moreover, since the repair pipe is softened, it follows the bending of the mounting pipe well.
Thus, according to this prior invention 2, the problems of the above-mentioned prior invention 1 can be eliminated, and not only the main pipe but also the branching section with the mounting pipe and the entire mounting pipe can be repaired in series and integrally from the inner surface. Water can be stopped and water can be prevented from entering. Moreover, since the polyethylene material is used for the repair cylinder, it is excellent in corrosion resistance and durability, and there is no problem of odor and bending deformation at the bent portion, which has been a conventional problem.
However, according to the prior invention 2, the use of the heat insulating bag (pulling operation of the bag) and the processing (removal) thereof are time-consuming and time-consuming, and improvement in construction efficiency is expected. .
In addition, in the prior invention 1, the flange portion that abuts the opening of the branch portion has a complicated shape that fits in advance with the curvature of the pipe rod, and labor is required not only for the molding but also for the installation operation at the branch portion. Such problems are pointed out. This is also the case with the prior invention 2.
Japanese Patent Laid-Open No. 5-126294 JP 2001-124243 A

そこで、本発明は上記問題点を解消すべくなされたものであり、施工効率の更なる向上が達成される新規な管路の分岐管路部のライニング施工方法を提供することを目的とする。
本発明はこのため、隘路である保温袋を使用しないこと、分岐部分での手間のかかる処理を解消することを条件とし、平板状のフランジ部を有し、加熱により軟化する分岐ライニング管を用いて、この問題の解消を図ったものである。
本発明はこれにより、熱可塑性樹脂による当該管路の分岐部における迅速施工技術を確立するものである。 Accordingly, the present invention has been made to solve the above-described problems, and an object thereof is to provide a lining construction method for a branch pipe section of a new pipe that can achieve further improvement in construction efficiency.
For this reason, the present invention uses a branched lining tube that has a flat flange portion and is softened by heating under the condition that a heat insulating bag that is a bottleneck is not used and that a troublesome process at a branch portion is eliminated. Thus, this problem is solved.
Accordingly, the present invention establishes a rapid construction technique at the branch portion of the pipe line by the thermoplastic resin.

本発明の管路の分岐管路部のライニング施工方法及び該ライニング施工方法に使用される分岐ライニング管は、具体的には以下の構成を採る。
すなわち、第１番目の発明は管路の分岐管路部のライニング施工方法に係り、請求項１に記載のとおり、本管から開口部を介して分岐する分岐管路において、当該分岐部並びに分岐管路部分にライニングを施工する方法であって、
前記分岐管路の径より小径の熱可塑性合成樹脂よりなる筒体と；この筒体の一端に連接して設けられ前記開口部の径と実質的に同径の開口を有し、該開口部の径よりも大径の外径を有する平板状のフランジ部と；からなる分岐ライニング管を加熱して軟化させ、
前記軟化状態の分岐ライニング管を前記本管側から前記開口部を介して前記分岐管路部内に引き入れるとともに、前記開口部において、前記分岐ライニング管のフランジ部を前記本管の内面に当接させ、前記筒体の両端部において密封状となすとともに、前記フランジ部を前記本管側から押圧支持し、
前記分岐ライニング管の筒体の軟質状態において該筒体内に充填する加圧媒体により加圧して前記筒体を拡径膨張させ、前記分岐管路の内面に密着させる、
ことを特徴とする。
上記構成において、
1)分岐ライニング管の合成樹脂材は形状記憶性が付与されてなること、
2)加圧において、加熱状態を付加すること、
3)分岐ライニング管のフランジ部の開口と筒体とはテーパー部を介して連なる、こと、
4)分岐ライニング管の筒体の密封は筒体のフランジ側の端部には栓体が嵌合され、筒体の他端にはキャップが密嵌されてなること、
5)分岐ライニング管のフランジ部の押圧支持はエアーパッカーによりなされること、
は適宜実施される選択的事項である。
（作用）
分岐ライニング管の分岐管部（取付け管）への引込みは軟質状態をもってなされ、分岐管の根元部を含む曲がり部に容易に追従する。そして、加圧更にそれに付加される加熱により、分岐ライニング管の筒体の取付け管内に密着し、ライニングをなす。平板上のフランジ部は分岐口部の曲率になじみ、無方向性を発揮する。
分岐ライニング管は筒体とフランジ部とが一体となっており、該分岐ライニング管の装着のみで作業が完結する。
このようにして、穿孔部回りから取付け管内への一体かつ一連の止水作業を実施できる。 Specifically, the lining construction method for the branch pipe section of the pipe according to the present invention and the branch lining pipe used in the lining construction method have the following configurations.
That is, the first invention relates to a lining construction method for a branch pipe section of a pipe. As described in claim 1, in the branch pipe branching from the main pipe through the opening, the branch section and the branch A method of lining a pipeline part,
A cylindrical body made of a thermoplastic synthetic resin having a diameter smaller than the diameter of the branch pipe; and an opening that is connected to one end of the cylindrical body and has substantially the same diameter as the opening. A branch-shaped lining pipe comprising a flat flange portion having an outer diameter larger than the diameter of
The softened branch lining pipe is drawn from the main pipe side into the branch pipe section through the opening, and the flange of the branch lining pipe is brought into contact with the inner surface of the main pipe at the opening. The cylindrical body is sealed at both ends, and the flange portion is pressed and supported from the main pipe side,
In a soft state of the cylindrical body of the branch lining pipe, pressurizing with a pressurizing medium filled in the cylindrical body to expand and expand the cylindrical body, and tightly contact the inner surface of the branch pipe line;
It is characterized by that.
In the above configuration,
1) The synthetic resin material of the branched lining pipe is given shape memory properties,
2) In heating, add a heating state,
3) The opening of the flange portion of the branch lining pipe and the cylindrical body are connected via a taper portion,
4) The sealing of the cylindrical body of the branch lining pipe is made by fitting a stopper to the end of the cylindrical body on the flange side and tightly fitting a cap to the other end of the cylindrical body.
5) The pressure support of the flange part of the branch lining pipe is made by an air packer,
Is an optional matter to be implemented as appropriate.
(Function)
The branch lining pipe is drawn into the branch pipe portion (attachment pipe) in a soft state, and easily follows the bent portion including the root portion of the branch pipe. Then, by pressurization and heating applied thereto, the tube is brought into close contact with the tube of the branch lining tube to form a lining. The flange on the flat plate adapts to the curvature of the branch port and exhibits non-directionality.
In the branch lining pipe, the cylindrical body and the flange portion are integrated, and the work is completed only by mounting the branch lining pipe.
In this way, an integrated and series of water stopping operations from around the perforated portion into the mounting pipe can be performed.

第２番目の発明は更に別な管路の分岐管路部のライニング施工方法に係り、請求項７に記載のとおり、本管から開口部を介して分岐する分岐管路において、当該分岐部並びに分岐管路部分にライニングを施工する方法であって、
前記分岐管路の径より小径の熱可塑性合成樹脂よりなるとともに熱形状記憶性が付与されてなる筒体と；この筒体の一端に連接して設けられ前記開口部の径と実質的に同径の開口を有し、該開口部の径よりも大径の外径を有する平板状のフランジ部と；からなる分岐ライニング管を加熱して軟化させ、
前記軟化状態の分岐ライニング管を前記本管側から前記開口部を介して前記分岐管路部内に引き入れるとともに、前記開口部において、前記分岐ライニング管のフランジ部を前記本管の内面に当接させ、前記筒体の両端部において密封状となすとともに、前記フランジ部を前記本管側から押圧支持し、
前記分岐ライニング管の筒体に加熱媒体を充填して前記筒体を拡径膨張させ、前記分岐管路の内面に密着させる、
ことを特徴とする。
上記構成において、
1)分岐ライニング管の拡径膨張に圧力を付加すること、
2)分岐ライニング管のフランジ部の開口と筒体とはテーパー部を介して連なること、
3)分岐ライニング管の筒体の密封は筒体のフランジ側の端部には栓体が嵌合され、筒体の他端にはキャップが密嵌されてなること、
4)分岐ライニング管のフランジ部の押圧支持はエアーパッカーによりなされること、
は適宜実施される選択的事項である。
（作用）
分岐ライニング管の分岐管部（取付け管）への引込みは軟質状態をもってなされ、分岐管の根元部を含む曲がり部に容易に追従する。そして、加熱更にそれに付加される加圧により、分岐ライニング管の筒体の取付け管内に密着し、ライニングをなす。平板状のフランジ部は分岐口部の曲率になじみ、無方向性を発揮する。
分岐ライニング管は筒体とフランジ部とが一体となっており、該分岐ライニング管の装着のみで作業が完結する。
このようにして、穿孔部回りから取付け管内への一体かつ一連の止水作業を実施できる。 The second invention relates to a lining construction method for a branch pipe section of another pipe, and as described in claim 7, in the branch pipe branching from the main pipe through the opening, the branch section and A method of lining a branch pipe part,
A cylinder made of a thermoplastic synthetic resin smaller in diameter than the branch pipe and provided with thermal shape memory; and connected to one end of the cylinder and substantially the same as the diameter of the opening. A branch-shaped lining pipe having an opening having a diameter and a flat flange portion having an outer diameter larger than the diameter of the opening;
The softened branch lining pipe is drawn from the main pipe side into the branch pipe section through the opening, and the flange of the branch lining pipe is brought into contact with the inner surface of the main pipe at the opening. The cylindrical body is sealed at both ends, and the flange portion is pressed and supported from the main pipe side,
Filling the cylinder of the branch lining pipe with a heating medium to expand and expand the cylinder, and tightly contact the inner surface of the branch pipe;
It is characterized by that.
In the above configuration,
1) Applying pressure to the expansion of the branch lining pipe
2) The opening of the flange part of the branch lining pipe and the cylindrical body are connected via a taper part,
3) The sealing of the cylindrical body of the branch lining pipe is made by fitting a stopper to the end of the cylindrical body on the flange side and tightly fitting a cap to the other end of the cylindrical body.
4) The pressure support of the flange part of the branch lining pipe is made by an air packer,
Is an optional matter to be implemented as appropriate.
(Function)
The branch lining pipe is drawn into the branch pipe portion (attachment pipe) in a soft state, and easily follows the bent portion including the root portion of the branch pipe. Then, due to the heating and the pressure applied thereto, it is brought into close contact with the attachment pipe of the branch lining pipe and forms a lining. The flat flange portion conforms to the curvature of the branch port portion and exhibits non-directionality.
In the branch lining pipe, the cylindrical body and the flange portion are integrated, and the work is completed only by mounting the branch lining pipe.
In this way, an integrated and series of water stopping operations from around the perforated portion into the mounting pipe can be performed.

第３番目の発明は上記第１の管路の分岐部のライニング施工方法の発明に使用される分岐ライニング管に係り、請求項９に記載のとおり、本管から開口部を介して分岐する分岐管路において、当該分岐部並びに分岐管路部分にライニングを施工する方法に使用する分岐ライニング管であって、
前記分岐管路の径より小径の熱可塑性合成樹脂よりなる筒体と、
前記筒体の一端に連接して設けられ前記開口部の径と実質的に同径の開口を有し、該開口部の径よりも大径の外径を有する平板状のフランジ部と、
からなる
ことを特徴とする。
上記構成において、
1)分岐ライニング管の合成樹脂材は形状記憶性が付与されてなること、
2)分岐ライニング管のフランジ部の開口と筒体とはテーパー部を介して連なる、こと、
は適宜実施される選択的事項である。 A third invention relates to a branch lining pipe used in the invention of the lining construction method for the branch portion of the first pipe line, and the branch branching from the main pipe through the opening as described in claim 9. In a pipe line, a branch lining pipe used in a method of lining the branch part and the branch pipe part,
A cylinder made of a thermoplastic synthetic resin having a smaller diameter than the diameter of the branch pipe;
A flat flange portion having an opening that is connected to one end of the cylindrical body and has substantially the same diameter as the diameter of the opening, and an outer diameter larger than the diameter of the opening;
It is characterized by comprising.
In the above configuration,
1) The synthetic resin material of the branched lining pipe is given shape memory properties,
2) The opening of the flange part of the branch lining pipe and the cylinder are connected via a taper part,
Is an optional matter to be implemented as appropriate.

第４番目の発明は同じく上記第２の管路の分岐部のライニング施工方法の発明に使用される分岐ライニング管に係り、請求項１１に記載のとおり、本管から開口部を介して分岐する分岐管路において、当該分岐部並びに分岐管路部分にライニングを施工する方法に使用する分岐ライニング管であって、
前記分岐管路の径より小径の熱可塑性合成樹脂よりなるとともに熱形状記憶性が付与されてなる筒体と、
前記筒体の一端に連接して設けられ前記開口部の径と実質的に同径の開口を有し、該開口部の径よりも大径の外径を有する平板状のフランジ部と、
からなる
ことを特徴とする。
上記構成において、
1)分岐ライニング管のフランジ部の開口と筒体とはテーパー部を介して連なること、
は適宜実施される選択的事項である。 The fourth aspect of the invention also relates to a branch lining pipe used in the invention of the lining construction method for the branch portion of the second pipe line, and branches from the main pipe through the opening as described in claim 11. In a branch pipe, a branch lining pipe used for a method of lining the branch part and the branch pipe part,
A cylindrical body made of a thermoplastic synthetic resin having a smaller diameter than the diameter of the branch pipe and having a thermal shape memory property,
A flat flange portion having an opening that is connected to one end of the cylindrical body and has substantially the same diameter as the diameter of the opening, and an outer diameter larger than the diameter of the opening;
It is characterized by comprising.
In the above configuration,
1) The opening of the flange part of the branch lining pipe and the cylindrical body are connected via a taper part,
Is an optional matter to be implemented as appropriate.

本発明の管路の分岐管路部のライニング施工方法によれば、本管と取付け管との分岐部及び分岐管路部の全体をその内面から一連かつ一体的に補修・止水でき、効率的な施工ができる。分岐ライニング管は筒体とフランジ部とが一体となっているので優れた止水性を発揮する。
特記されるべきは、直角状にして平板上のフランジ部の部位においても、筒部とともに軟質化されているので、分岐部の形状に追従することができ、無方向性を発揮し、施工の自由度が増し、施工の効率化に寄与する。
更に、分岐管路部に挿入された分岐ライニング管は加圧・加熱によって全体的に分岐管路部の内面に密着させることができ、断面損失もなく、かつ迅速な施工が達成することができる。 According to the lining construction method of the branch pipe portion of the pipe of the present invention, the entire branch portion of the main pipe and the attachment pipe and the entire branch pipe portion can be repaired and stopped continuously and integrally from the inner surface, and the efficiency Construction is possible. The branch lining tube has an excellent water-stopping property because the cylindrical body and the flange portion are integrated.
It should be noted that the flange portion on the flat plate has a right angle and is softened together with the cylindrical portion, so that it can follow the shape of the branching portion, exhibit non-directionality, The degree of freedom increases, contributing to the efficiency of construction.
Further, the branch lining pipe inserted into the branch pipe section can be brought into close contact with the inner surface of the branch pipe section as a whole by pressurization and heating, and there is no cross-sectional loss, and quick construction can be achieved. .

本発明の管路の分岐管路部のライニング施工方法の実施の形態を図面に基づいて説明する。
図１〜図９に本発明の管路の分岐管路部のライニング施工方法の一実施形態を示す。すなわち、図１・図２はその施工方法を実施する過程における全体的構成を示し、図３〜図９はその部分構成を示す。
これらの図において、Ｐ，Ｒは本発明の対象となる地中に埋設された管路すなわち管渠並びに分岐管路すなわち取付け管、Ｌは管渠Ｐ内に施されるライニングであって、管渠Ｐ・ライニングＬと取付け管Ｒとは穿孔部（開口部）Ｑを介して連通する。
しかして、この管渠Ｐ並びに取付け管Ｒ内に分岐ライニング管Ｓが配される。該分岐ライニング管Ｓは管渠Ｐから取付け管Ｒへ導き入れられる。
以下の説明において、該分岐ライニング管Ｓの進行方向に合わせて、「前方」及び「後方」と定義する。 An embodiment of a lining construction method for a branch pipeline portion of a pipeline according to the present invention will be described with reference to the drawings.
FIGS. 1-9 shows one Embodiment of the lining construction method of the branch pipe part of the pipe line of this invention. That is, FIGS. 1 and 2 show the overall configuration in the process of implementing the construction method, and FIGS. 3 to 9 show the partial configuration.
In these drawings, P and R are pipes or pipes buried in the ground to be the object of the present invention and branch pipes or attachment pipes, and L is a lining applied in the pipe P. The eaves P and the lining L communicate with the attachment pipe R through a perforated portion (opening) Q.
Accordingly, the branch lining pipe S is arranged in the pipe rod P and the attachment pipe R. The branch lining pipe S is led from the pipe rod P to the mounting pipe R.
In the following description, “front” and “rear” are defined according to the traveling direction of the branch lining pipe S.

以下、更に詳しく説明する。
図１・図２において、管路Ｐは地盤Ｅに埋設された既設の下水道管渠であって、本実施形態ではコンクリート製の小口径管をなし、その上下流側にはマンホール部（図示せず）が設置されている。すなわち、該マンホール部を介して地上部と管渠Ｐとは連通する。
また、地表面部には雨水・汚水枡Ｍが設置され、この枡Ｍと管渠Ｐとは取付け管Ｒを介して連通する。すなわち、地表の雨水・汚水等はこの枡Ｍを介し、取付け管Ｒを通して管渠Ｐに流れ込む。該取付け管Ｒは通常は陶管あるいは合成樹脂管（塩化ビニル管）よりなり、当然ながら管渠Ｐより小口径である。
しかして、既設の管渠Ｐが老朽化し、脆弱化すると、その更生のために内面にライニングＬが施され、その取付け管Ｒとの分岐部において開口部Ｑが穿孔され、取付け管Ｒと再度連通する。
そしてまた、取付け管Ｒも漏水などによる老朽化あるいは外力による破損等により、その更生が図られることになる。 This will be described in more detail below.
1 and 2, a pipe P is an existing sewer pipe buried in the ground E. In this embodiment, a concrete small-diameter pipe is formed, and a manhole portion (not shown) is provided on the upstream and downstream sides thereof. Is installed. That is, the ground part and the pipe rod P communicate with each other through the manhole part.
A rainwater / sewage tub M is installed on the ground surface, and the tub M and the pipe tub P communicate with each other through the attachment pipe R. That is, rainwater, sewage, etc. on the surface of the earth flows into the pipe rod P through the attachment pipe R through this rod M. The mounting pipe R is usually made of a ceramic pipe or a synthetic resin pipe (vinyl chloride pipe), and naturally has a smaller diameter than the pipe rod P.
If the existing pipe rod P becomes obsolete and weakened, a lining L is applied to the inner surface for rehabilitation, and an opening Q is perforated at a branching portion with the attachment pipe R. Communicate.
Further, the attachment pipe R can be rehabilitated due to aging due to water leakage or the like or damage due to external force.

そこで、この取付け管Ｒに本実施形態に特有な分岐ライニング管Ｓが設置施工される。
分岐ライニング管Ｓ
分岐ライニング管Ｓは、取付け管Ｒ内に挿入される円筒状のライニング円筒管１と、該円筒管１の一端に設けられるフランジ部２とからなる。
（ライニング円筒管１）
ライニング円筒管１は、熱可塑性の合成樹脂、特には形状記憶性の樹脂、好ましくは塩化ビニル樹脂（ＰＶＣ）をもって形成され定常状態で中空円筒状をなし、長さは取付け管Ｒよりも長尺とされ、その外径は取付け管Ｒの内面の径より小径とされる。
この円筒管１は他の熱可塑性合成樹脂素材、例えばポリエチレン樹脂より成形されることを除外するものではない。
塩化ビニル樹脂（ＰＶＣ）あるいはポリエチレン樹脂等に形状記憶性を導入する手段は公知である。例えば、ＰＶＣにおいては、形状記憶温度は１７０℃前後で処理され、また管体形状を記憶した後、管軸（長さ）方向に張力を加えられて小径体になされる。
しかして、この形状記憶性のＰＶＣにおいて、ガラス転移温度（３５〜８０℃）と形状回復温度（５５℃以上）との間のいわゆる軟化温度帯（本実施形態では８０℃）で、以下の加熱軟化処理及び加圧膨張処理がなされる。
加熱軟化性、更には加圧膨張性を発現するものであれば、通常のＰＶＣ、又はポリエチレン、更には他の合成樹脂材でもあってもよいことは勿論である。
（フランジ部２）（図６〜図８参照）
フランジ部２は中央に円孔を有する扁平状の円環体をなし、所要の肉厚をもってライニング円筒管１と同素材をもって形成され、従って、加熱軟化性を有し、該ライニング円筒管１に連設するとともに、その外径は該ライニング円筒管１の径より大径のものとして形成される。すなわち、該フランジ部２は塩化ビニル樹脂をもって形成され、管渠Ｐの内面に当接し、後記するように軟化されて変形され管渠Ｐの曲率に沿う形状とされても開口内に落ち込むことのない外径Ｄを保持する。なお、該Ｄは管渠Ｐ及びそのライニングＬの層厚の内径よりも大きくはされない。
該フランジ部２の上面（換言すれば前方側表面）にはシール材４が所定幅をもって円環状に貼設される。シール材４には、ブテルゴム、あるいは他の膨潤性ゴムの使用が推奨される。シール材４は塗布剤によることもできる。
（テーパー部１Ａ）
本実施形態において更に特徴的はことは、円筒管１の基部１Ａ、すなわちフランジ部２との連接部分は、円筒管１よりフランジ部２に至るにつれ径を拡大し、テーパー部となる。換言すれば、該テーパー部１Ａはフランジ部２より円筒管１に至るにつれ径を縮小する。
（製管）
このように本分岐ライニング管Ｓは、直管状の円筒管１の端部に平面状のフランジ部２が形成され、極めて単純な形状となっている。特に、そのフランジ部２が扁平をなすことを本発明の特徴とし、その成形性が簡単化されるのに加え、設置時の無方向性を与える大きな効果がある。
当該分岐ライニング管Ｓは、工場において加工製作されるも、また現場において加工製作されるも自由である。
現場の状況に対応して、現場にて加工される態様を採ることが多い。すなわち、このとき、フランジ部２とテーパー部１Ａとからなる既製の短管（ティーともいう）が用意され、該短管と円筒管１とが溶着部１ａをもって接合される。 Therefore, a branch lining pipe S peculiar to the present embodiment is installed on the mounting pipe R.
Branch lining pipe S
The branch lining pipe S includes a cylindrical lining cylindrical pipe 1 inserted into the attachment pipe R and a flange portion 2 provided at one end of the cylindrical pipe 1.
(Lined cylindrical tube 1)
The lining cylindrical tube 1 is formed of a thermoplastic synthetic resin, in particular, a shape memory resin, preferably a vinyl chloride resin (PVC), and has a hollow cylindrical shape in a steady state, and its length is longer than that of the mounting tube R. The outer diameter is smaller than the inner diameter of the mounting pipe R.
The cylindrical tube 1 is not excluded from being molded from other thermoplastic synthetic resin materials, such as polyethylene resin.
Means for introducing shape memory into vinyl chloride resin (PVC) or polyethylene resin are well known. For example, in PVC, the shape memory temperature is processed at around 170 ° C., and after storing the tube shape, tension is applied in the tube axis (length) direction to form a small-diameter body.
Thus, in this shape memory PVC, the following heating is performed in a so-called softening temperature zone (80 ° C. in this embodiment) between the glass transition temperature (35 to 80 ° C.) and the shape recovery temperature (55 ° C. or higher). A softening process and a pressure expansion process are performed.
Of course, ordinary PVC, polyethylene, and other synthetic resin materials may be used as long as they exhibit heat softening properties, and further pressure expansion properties.
(Flange part 2) (refer FIGS. 6-8)
The flange portion 2 is a flat annular body having a circular hole in the center, is formed of the same material as the lining cylindrical tube 1 with a required thickness, and thus has heat softening properties. In addition to the continuous arrangement, the outer diameter of the lining cylindrical tube 1 is larger than that of the lining cylindrical tube 1. That is, the flange portion 2 is formed of vinyl chloride resin, abuts against the inner surface of the pipe rod P, is softened and deformed as will be described later, and falls into the opening even if the shape follows the curvature of the pipe rod P. Holds no outer diameter D. The D is not made larger than the inner diameter of the layer thickness of the pipe rod P and its lining L.
A sealing material 4 is affixed in an annular shape with a predetermined width on the upper surface of the flange portion 2 (in other words, the front surface). For the sealing material 4, it is recommended to use butel rubber or other swellable rubber. The sealing material 4 can also be a coating agent.
(Taper part 1A)
In the present embodiment, the characteristic is that the base portion 1A of the cylindrical tube 1, that is, the connecting portion with the flange portion 2 is enlarged in diameter from the cylindrical tube 1 to the flange portion 2 to become a tapered portion. In other words, the diameter of the tapered portion 1 </ b> A decreases as it reaches the cylindrical tube 1 from the flange portion 2.
(Pipe making)
Thus, this branch lining pipe S has a very simple shape with a flat flange portion 2 formed at the end of the straight tubular cylinder 1. In particular, the feature of the present invention is that the flange portion 2 is flat, and in addition to simplifying the moldability, there is a great effect of providing non-directionality during installation.
The branch lining pipe S can be processed and manufactured in a factory or processed on site.
In many cases, the processing is performed at the site according to the situation at the site. That is, at this time, a ready-made short pipe (also referred to as a tee) composed of the flange portion 2 and the tapered portion 1A is prepared, and the short tube and the cylindrical tube 1 are joined together with the welded portion 1a.

本実施形態においては、既設管渠Ｐは人の出入りができない小口径（例えば口径φ２５０mm）を対象として実施される。
しかして、この既設管渠Ｐが老朽化している場合、該管渠Ｐに対し、ライニングＬが適宜施される。
その一実施態様として、マンホール等を介して地上より該管渠Ｐの内面に密着する熱可塑性でかつ形状記憶性の合成樹脂、前記した塩化ビニル（ＰＶＣ）製のライニング管Ｌ’を牽引挿入する。熱可塑性で形状記憶性の合成樹脂材として他にポリエチレン（ＰＥ）製のものもあり、この使用を除外できるものではない。このとき、該ライニング管Ｌ’はその横断面をＣ型に変形させて断面を縮径させることにより容易に既設管Ｐ内に挿入される。
しかる後、当該ライニング管Ｌ’に対し、その内部に加熱蒸気を送り込んで加熱するとともに圧縮空気をもって加圧し、該ライニング管Ｌ’を所定の径に復形させて該既設管渠Ｐの内面に密着させ、ライニング管Ｌが定置される。
ここで、取付け管Ｒの分岐部においてはライニングＬで塞がれた状態となっているので、既設管渠Ｐの内部から公知の穿孔装置（図示せず）を用いて穿孔し、開口Ｑを形成し、取付け管Ｒとの連通をなす。
取付け管Ｒは管渠Ｐよりも小径であり、例えば口径φ１５０mmを採る。なお、場合によっては取付け管Ｒから削孔をなすことも可能である。 In the present embodiment, the existing pipe rod P is implemented for a small diameter (for example, a diameter of φ250 mm) incapable of entering and exiting a person.
Thus, when the existing pipe rod P is aged, the lining L is appropriately applied to the pipe rod P.
As one embodiment thereof, a thermoplastic and shape memory synthetic resin that adheres to the inner surface of the pipe rod P from the ground via a manhole or the like, and pulls and inserts the above-described lining pipe L ′ made of vinyl chloride (PVC). . There are other thermoplastic (shape memory) synthetic resin materials made of polyethylene (PE), and this use cannot be excluded. At this time, the lining pipe L ′ is easily inserted into the existing pipe P by deforming its cross section into a C shape and reducing the diameter of the cross section.
Thereafter, heated steam is fed into the lining pipe L ′ and heated, and pressurized with compressed air, and the lining pipe L ′ is reshaped to a predetermined diameter so as to be formed on the inner surface of the existing pipe rod P. The lining pipe L is placed in close contact.
Here, since the branch portion of the attachment pipe R is closed with the lining L, the opening Q is formed by drilling from the inside of the existing pipe rod P using a known drilling device (not shown). Form and communicate with the mounting tube R.
The mounting pipe R has a smaller diameter than the pipe rod P, and has a diameter of 150 mm, for example. In some cases, it is possible to make a hole from the mounting pipe R.

分岐管路部のライニング施工方法
このようになされた管渠Ｐの分岐部及び取付け管Ｒに対して分岐ライニング管Ｓの取付け工事がなされる。
図 1、図２はその施工過程を示す。すなわち、図１は本施工方法の途中の前工程を示し、図２は本施工方法の途中の後工程を示す。 Lining construction method of branch pipe section The branch lining pipe S is attached to the branch portion of the pipe rod P and the attachment pipe R thus made.
Figures 1 and 2 show the construction process. That is, FIG. 1 shows the pre-process in the middle of this construction method, and FIG. 2 shows the post-process in the middle of this construction method.

以下、工程順に説明する。
(1) 地上部もしくはマンホール部内において分岐ライニング管Ｓが準備され、該分岐ライニング管Ｓの取付け管Ｒ内への装着準備作業、すなわち、該分岐ライニング管Ｓの加熱、軟化作業が実施される。
このため、加熱装置Ｈが使用される。加熱装置Ｈ（図示せず、符号のみ）は、保温袋、ボイラーよりなる。
保温袋は、公知のものが使用され、気密性素材よりなるとともに、一端が開放された筒状に形成され、その内部に分岐ライニング管Ｓの全体が収容され得る。該保温袋は可撓性を有し、高温に耐える。保湿袋は本発明において非本質的事項であって、要は加熱することが重要であり、他の手段（例えばカバー）を除外するものではない。
ボイラーは後記する加熱・加圧装置Ｊのボイラー３０が共用される。ボイラーからの加熱蒸気は、適宜調節弁を介して蒸気の排出をこの部分でなし、蒸気の送り込みを調整する。
加熱に先立って、分岐ライニング管Ｓの円筒管１の上端にはキャップ１０が嵌合され、分岐ライニング管Ｓのフランジ部２においては栓体１１が嵌合され、他に牽引ワイヤーが装着される。しかる後、この分岐ライニング管Ｓを保温袋に収納し、該保温袋にボイラーからの加熱蒸気（常圧で１００℃）を送り込み、分岐ライニング管Ｓを加熱軟化する。 Hereinafter, it demonstrates in order of a process.
(1) The branch lining pipe S is prepared in the above-ground part or the manhole part, and the preparation work for mounting the branch lining pipe S in the mounting pipe R, that is, the heating and softening work of the branch lining pipe S is performed.
For this reason, the heating device H is used. The heating device H (not shown, only a symbol) is formed of a heat insulating bag and a boiler.
A well-known thing is used for a heat insulation bag, and while it consists of an airtight material, it forms in the cylinder shape which one end was open | released, and the whole branch lining pipe | tube S can be accommodated in the inside. The heat insulation bag is flexible and can withstand high temperatures. The moisturizing bag is a non-essential matter in the present invention. In short, it is important to heat, and other means (for example, a cover) are not excluded.
As the boiler, the boiler 30 of the heating / pressurizing device J described later is shared. Heated steam from the boiler is appropriately discharged through this control valve to adjust the steam feed.
Prior to heating, a cap 10 is fitted to the upper end of the cylindrical pipe 1 of the branch lining pipe S, a plug body 11 is fitted to the flange portion 2 of the branch lining pipe S, and a pulling wire is attached. . Thereafter, the branch lining pipe S is accommodated in a heat insulating bag, and heated steam (100 ° C. at normal pressure) from a boiler is fed into the heat insulating bag to heat and soften the branch lining pipe S.

図６、図７にフランジ部２・テーパー部１Ａ内への栓体１１の取付け状態を示す。
栓体１１は切頭円錐体をなし、木製あるいは合成樹脂材よりなり、更にはゴム製も採りうる。
栓体１１は、フランジ部２のテーパー部１Ａ内への確実な嵌合、すなわち容易に外れないことが要件とされ、側面１１ａはテーパーに形成される。該栓体１１はテーパー部１Ａ内に必ずしも密嵌状となるものではなく、側面部には適宜浅溝１１ｂが凹部され、後記する加熱蒸気の通過を許容する。
栓体１１にはフック１２が固定され、該フック１２に内部牽引ワイヤー１３Ａの一端が係合される。内部牽引ワイヤー１３Ａは分岐ライニング管Ｓを最短長さで張られ、他端をキャップ１０に係合し、もしくは該キャップ１０を貫通して分岐ライニング管Ｓ外に引き出される（図１参照）。
該分岐ライニング管Ｓの軟質化が終了すれば、保温袋が取り外される。 FIGS. 6 and 7 show how the plug body 11 is attached to the flange portion 2 and the tapered portion 1A.
The plug 11 is a truncated cone, made of wood or synthetic resin, and can be made of rubber.
The plug body 11 is required to be surely fitted into the tapered portion 1A of the flange portion 2, that is, not easily detached, and the side surface 11a is tapered. The plug body 11 is not necessarily tightly fitted in the tapered portion 1A, and a shallow groove 11b is appropriately recessed in the side surface portion to allow passage of heated steam described later.
A hook 12 is fixed to the plug 11, and one end of the internal pulling wire 13 </ b> A is engaged with the hook 12. The internal pulling wire 13A is stretched over the branch lining pipe S with the shortest length, and the other end engages with the cap 10 or passes through the cap 10 and is drawn out of the branch lining pipe S (see FIG. 1).
When the softening of the branch lining pipe S is completed, the heat insulating bag is removed.

(2) 次いで、分岐ライニング管Ｓの取付け管Ｒ内への引き込みがなされる。このため、引込み装置Ｉが使用される。
引込み装置Ｉはウインチ１５を主体とし、分岐ライニング管Ｓのキャップ１０より突出した内部牽引ワイヤー１３Ａに係合する外部牽引ワイヤー１３Ｂよりなる。なお、外部牽引ワイヤー１３Ｂの途中にスイベルジョイント（図示せず）を介装させ、巻取りに伴う該牽引ワイヤーのねじれを防止することが推奨される。
先ず、外部牽引ワイヤー１３Ｂを地上部の枡Ｍから取付け管Ｒ内を挿通して既設管渠Ｐ内に挿入し、作業空間が確保される場所、例えば下流側マンホールまで到達させる。そして、該マンホール部で保温袋より取り出された分岐ライニング管Ｓの内部牽引ワイヤー１３Ａに連結する。 (2) Next, the branch lining pipe S is pulled into the attachment pipe R. For this reason, the retractor I is used.
The retracting device I includes a winch 15 as a main body and an external pulling wire 13B engaged with an internal pulling wire 13A protruding from the cap 10 of the branch lining pipe S. It is recommended that a swivel joint (not shown) is interposed in the middle of the external pulling wire 13B to prevent twisting of the pulling wire due to winding.
First, the external pulling wire 13B is inserted into the existing pipe rod P through the attachment tube R from the overhanging rod M to reach a place where a work space is secured, for example, a downstream manhole. And it connects with the internal pulling wire 13A of the branch lining pipe | tube S taken out from the heat insulation bag by this manhole part.

(3) ウインチ１５を作動し、取付け管Ｒ内に分岐ライニング管Ｓを引き込む。
この過程で、取付け管Ｒの途中の曲がり部において、分岐ライニング管Ｓの円筒管１は加熱により柔らかくなっているので、曲がり部でも抵抗を受けず、容易に該曲がり部を通過する。
また、分岐ライニング管Ｓの円筒管１をキャップ１０、栓体１１、内部牽引ワイヤー１３Ａを介して牽引するので、円筒管１には過大な力が作用せず、形が崩れず、円形を保持する。
該牽引は分岐ライニング管Ｓの円筒管１の前端部が地上部に出るまで行う。 (3) Operate the winch 15 and pull the branch lining pipe S into the mounting pipe R.
In this process, since the cylindrical tube 1 of the branch lining pipe S is softened by heating at the bent portion in the middle of the attachment pipe R, the bent portion is not subjected to resistance and easily passes through the bent portion.
Further, since the cylindrical tube 1 of the branch lining tube S is pulled through the cap 10, the plug body 11, and the internal pulling wire 13A, excessive force does not act on the cylindrical tube 1, the shape is not collapsed, and the circular shape is maintained. To do.
The traction is performed until the front end portion of the cylindrical tube 1 of the branch lining tube S comes out to the ground.

(4) 分岐ライニング管Ｓの取付け管Ｒ内への引き込みにより分岐ライニング管Ｓの後端のフランジ部２が開口部Ｑに接近し、更に引き込みを継続すると遂には該フランジ部２は開口部Ｑ周りに当接し、その曲率に沿って変形する。これにより分岐ライニング管Ｓの引込み作業を停止する。
更にこのとき、円筒管１の基部、すなわちフランジ部２とのテーパー部１Ａにおいて、当該部位はフランジ部２と直角状をなすが、円筒管１は軟質化しており、分岐部の形状に対応して、その角度に追従して折り曲げられ、形状を変化させる。
フランジ部２において、開口部Ｑの管軸部位においては栓体１１の後端面より広がるが、管軸直角部位においては一旦直管状を保ち、後端部より管渠Ｐの曲率に沿って広がる（図５参照）。 (4) By pulling the branch lining pipe S into the mounting pipe R, the flange portion 2 at the rear end of the branch lining pipe S approaches the opening Q, and when the pulling is continued, the flange 2 finally opens the opening Q. Abuts around and deforms along its curvature. Thereby, the drawing-in work of the branch lining pipe S is stopped.
Furthermore, at this time, in the taper portion 1A with the base portion of the cylindrical tube 1, that is, the flange portion 2, the portion is perpendicular to the flange portion 2, but the cylindrical tube 1 is softened and corresponds to the shape of the branch portion. Then, it is bent following the angle to change its shape.
In the flange portion 2, the tube portion of the opening Q extends from the rear end surface of the plug body 11, but the portion perpendicular to the tube shaft once maintains a straight tube shape and extends from the rear end portion along the curvature of the pipe rod P ( (See FIG. 5).

(5) しかる後、分岐ライニング管Ｓと組み合わせて使用されるエアーパッカー１７が準備され、既設管渠Ｐを介して当該分岐部へ搬入され、フランジ部２の下面へ配置される（図２、図４、図５参照）。
該エアーパッカー１７には牽引ロープ１８、空気ホース１９が連結され、牽引ロープ１８を介して他のマンホールからの引き込みにより該エアーパッカー１７を移動させる。空気ホース１９は外部のコンプレッサーに接続される。
空気ホース１９からエアーパッカー１７へ空気圧を導入し、エアーパッカー１７を膨張させ、フランジ部２を開口部Ｑの周辺に強く押し当てる。
なお、該エアーパッカー１７に替え、機械力あるいは油圧をもってフランジ部２を押圧する装置によることもできる。 (5) After that, an air packer 17 used in combination with the branch lining pipe S is prepared, carried into the branch part via the existing pipe rod P, and disposed on the lower surface of the flange part 2 (FIG. 2, (See FIGS. 4 and 5).
A traction rope 18 and an air hose 19 are connected to the air packer 17, and the air packer 17 is moved by drawing from another manhole via the traction rope 18. The air hose 19 is connected to an external compressor.
Air pressure is introduced from the air hose 19 to the air packer 17, the air packer 17 is expanded, and the flange portion 2 is strongly pressed against the periphery of the opening Q.
In addition, it can replace with this air packer 17, and can also be based on the apparatus which presses the flange part 2 with a mechanical force or hydraulic pressure.

(6) 次に、図２・図９に示すように、円筒管１の上端部を閉塞蓋２２をもって密閉状とする。該閉塞蓋２２は金属体よりなり、下面より突出する鍔２２ａをもって円筒管１を強固に嵌合する。また、該閉塞蓋２２には蒸気導入孔２２ｂ及び蒸気排出孔２２ｃの２つの孔が開設され、これらの孔２２ｂ，２２ｃに蒸気導入管２４及び蒸気排出管２５が挿通される。蒸気導入管２４は地上部に配した加熱・加圧装置Ｊに接続される。蒸気排出管２５は分岐ライニング管Ｓの下端、すなわち栓体１１の近傍にまで導かれる。蒸気排出管２５の上端はそのまま空気中に解放される。
加熱・加圧装置Ｊは、ボイラー３０、コンプレッサー３１を主体とし、ボイラー３０、コンプレッサー３１からの配管３２，３３は弁３４を介して共通の主配管３５に接続される。該主配管３５は調整弁３６を介して蒸気導入管２４に接続される。 (6) Next, as shown in FIGS. 2 and 9, the upper end of the cylindrical tube 1 is sealed with a closing lid 22. The closing lid 22 is made of a metal body, and the cylindrical tube 1 is firmly fitted with a flange 22a protruding from the lower surface. The closing lid 22 is provided with two holes, a steam introduction hole 22b and a steam discharge hole 22c, and a steam introduction pipe 24 and a steam discharge pipe 25 are inserted into these holes 22b and 22c. The steam introduction pipe 24 is connected to a heating / pressurizing device J disposed on the ground. The steam discharge pipe 25 is led to the lower end of the branch lining pipe S, that is, to the vicinity of the plug body 11. The upper end of the steam discharge pipe 25 is released into the air as it is.
The heating / pressurizing device J mainly includes a boiler 30 and a compressor 31, and pipes 32 and 33 from the boiler 30 and the compressor 31 are connected to a common main pipe 35 via a valve 34. The main pipe 35 is connected to the steam introduction pipe 24 via a regulating valve 36.

(7) 次いで、この状態で、地上に配したボイラー３０及びコンプレッサー３１を作動させ、主配管３５を介して蒸気導入管２４より、円筒管１の内部へ加熱（１００℃〜１２５℃）かつ加圧（０．５〜０．７kgf/cm2)された媒体ガスすなわち蒸気を送り込み、円筒管１を加熱・加圧して円形に膨らます。すなわち、加熱を継続し、該加熱蒸気を介して加圧をなすものである。これにより、円筒管１の表面温度は８０℃前後の形状記憶温度に上昇し、膨径状態となる。
円筒管１内に送り込まれた蒸気は、蒸気排出管２５を介して外部へ排出される。このため、円筒管１内には常時新しい高温蒸気が送り込まれる。該蒸気排出管２５の排出量は、圧力を大きく減少させない程度になされ、加圧に悪影響を与えない。 (7) Next, in this state, the boiler 30 and the compressor 31 arranged on the ground are operated and heated (100 ° C. to 125 ° C.) and heated from the steam introduction pipe 24 to the inside of the cylindrical pipe 1 through the main pipe 35. A medium gas, that is, steam with a pressure (0.5 to 0.7 kgf / cm2) is sent in, and the cylindrical tube 1 is heated and pressurized to expand into a circular shape. That is, heating is continued and pressure is applied through the heating steam. As a result, the surface temperature of the cylindrical tube 1 rises to a shape memory temperature of around 80 ° C., and is in an expanded state.
The steam sent into the cylindrical tube 1 is discharged to the outside through the steam discharge tube 25. For this reason, new high-temperature steam is always sent into the cylindrical tube 1. The discharge amount of the steam discharge pipe 25 is set so as not to greatly reduce the pressure, and does not adversely affect the pressurization.

(7A)栓体１１の装着された円筒管１のテーパー部１Ａについては、テーパー部１Ａの径小部は円筒管１と同様に膨径するが、基部は膨張がフランジ部２の拘束を受けて規制され、栓体１１の根元部と密着状を保つ。供給される加熱蒸気はまた、栓体１１の側面１１ａの溝１１ｂからも逸出され、フランジ部２を高温雰囲気に加熱し軟化させる。
フランジ部２は管渠Ｐの内方からのパッカー１７による加圧を受け、管渠Ｐの内面に張り着く。
(7B)この状態を継続し、約２０分程度で円筒管１が取付け管Ｒ内に張り着く。
(7C)上記の張付けに係る所定時間の経過後、ボイラー３０を止め、コンプレッサー３１のみの作動とし、分岐ライニング管Ｓ内に更に圧力（１．５〜２．０kgf/cm2 ）を高めて常温の圧縮空気を送る。初期において分岐ライニング管Ｓ内の蒸気及び水分は蒸気排出管２を介して外部に排出される。これにより、分岐ライニング管Ｓは冷却（円筒管１の表面温度４０℃を目安とする。）と加圧がなされ、円筒管１の拡径が維持されるとともに取付け管Ｒの内壁面に密着して強固に貼り着き、ライニングされる。 (7A) As for the tapered portion 1A of the cylindrical tube 1 to which the plug body 11 is attached, the small diameter portion of the tapered portion 1A expands in the same manner as the cylindrical tube 1, but the expansion of the base portion is restricted by the flange portion 2. And is kept in close contact with the base of the plug 11. The supplied heated steam is also escaped from the groove 11b of the side surface 11a of the plug body 11, and heats and softens the flange portion 2 to a high temperature atmosphere.
The flange portion 2 is pressurized by the packer 17 from the inside of the pipe rod P and sticks to the inner surface of the pipe rod P.
(7B) This state is continued, and the cylindrical tube 1 sticks in the mounting tube R in about 20 minutes.
(7C) After the elapse of a predetermined time related to the above-mentioned pasting, the boiler 30 is stopped, the compressor 31 only is operated, and the pressure (1.5 to 2.0 kgf / cm 2) is further increased in the branch lining pipe S at room temperature. Send compressed air. In the initial stage, steam and moisture in the branch lining pipe S are discharged to the outside through the steam discharge pipe 2. Thereby, the branch lining pipe S is cooled (with a surface temperature of 40 ° C. of the cylindrical pipe 1 as a guide) and pressurized, and the diameter of the cylindrical pipe 1 is maintained and the inner wall surface of the mounting pipe R is adhered. It is firmly attached and lined.

(8) しかる後、管渠Ｐの分岐部に配されたエアーパッカー１７の空気を排出し、当該分岐部よりエアーパッカー１７の負荷を除去し、マンホール側に取り出される。更に、牽引ワイヤー１３を緩め、円筒管１の上端部の蒸気導入管２４より加圧を続け、栓体１１を管渠Ｐ内へ落とし、該栓体１１を除去する。 (8) After that, the air in the air packer 17 arranged in the branch part of the pipe rod P is discharged, the load of the air packer 17 is removed from the branch part and taken out to the manhole side. Further, the pulling wire 13 is loosened, the pressurization is continued from the steam introduction pipe 24 at the upper end of the cylindrical tube 1, the plug body 11 is dropped into the pipe rod P, and the plug body 11 is removed.

(9) 円筒管１の閉塞蓋２２から上端部の蒸気導入管２４、蒸気排出管２５を取り外し、閉塞蓋２２を撤去する。そして、桝Ｍ内に残る円筒管１を除去し、枡Ｍにおいては分岐ライニング管Ｓの管口処理をして一連の作業が完了する。 (9) The steam inlet pipe 24 and the steam discharge pipe 25 at the upper end are removed from the closed cover 22 of the cylindrical tube 1 and the closed cover 22 is removed. Then, the cylindrical tube 1 remaining in the tub M is removed, and the throat M is subjected to the opening processing of the branch lining pipe S to complete a series of operations.

上記の各工程における数値は例示であって、発明の本旨に従って適宜変更される。   The numerical values in each of the above steps are examples, and are appropriately changed according to the gist of the invention.

（その他の態様）
上記工程において以下の改変は適宜なされる設計的事項であり、本発明の実質的効果に変化を与えるものではない。
1)内部牽引ワイヤー１３Ａは適宜省略できる。
2)ボイラー３０からの配管とコンプレッサー３１からの配管とを独立させ、各々閉塞蓋２２を介して円筒管１内へ導入してもよい。
3)工程(7) において、加圧は１〜２kgf/cm2 であってもよい。
4)工程(7C)は前工程で円筒管１が取付け管Ｒ内に十分強固に張り付く場合には省略することができる。 (Other aspects)
The following modifications in the above steps are design matters that are appropriately made, and do not change the substantial effects of the present invention.
1) The internal pulling wire 13A can be omitted as appropriate.
2) The piping from the boiler 30 and the piping from the compressor 31 may be made independent and introduced into the cylindrical tube 1 through the closing lid 22, respectively.
3) In the step (7), the pressure may be 1 to 2 kgf / cm 2.
4) The step (7C) can be omitted when the cylindrical tube 1 is sufficiently firmly attached in the mounting tube R in the previous step.

（実施形態の作用）
このように、本実施形態の管路の分岐管路部のライニング施工方法は、叙上の予め一体形成された分岐ライニング管Ｓを所定の補助装置Ｈ，Ｉ, Ｊを使用して叙上の手順をもってなされ、以下の作用を発揮する。
分岐ライニング管Ｓの取付け管Ｒ（分岐管部）への引込みは軟質状態をもってなされ、取付け管Ｒの分岐口部Ｑを含む曲がり部に容易に追従する。平坦状のフランジ部２も分岐口部の曲率になじみ、無方向性を発揮する。
また、キャップ１０、内部ワイヤー１３Ａにより分岐ライニング管Ｓは常時円形を保つ。
加熱・加圧により、分岐ライニング管Ｓの円筒管１は膨径し、取付け管Ｒの内面に密着する。また、フランジ部２の近傍のテーパー部１Ａにおいては、栓体１１の作用と相俟って取付け管Ｒの取付け角度に追従し、くびれ部を生じることなく、一定径の管に拡径し、フランジ部２とともに既設管の内面に密着する。
しかして、分岐ライニング管Ｓは円筒管１とフランジ部２との一体成形により、該分岐ライニング管Ｓの装着のみで作業が完結する。また、断面損失もない。
このようにして、作業者の出入りできない小口径の既設埋設管渠Ｐを、直接的に、または熱塑性合成樹脂管でライニングして更生した後に、当該分岐口部Ｑ及び取付け管Ｒ内の補修・止水処理が一連的かつ一体的に実施される。 (Operation of the embodiment)
As described above, the lining construction method for the branch pipe section of the pipe according to the present embodiment uses the predetermined auxiliary devices H, I, and J for the branch lining pipe S formed in advance. It is done with procedures and demonstrates the following effects.
The branch lining pipe S is drawn into the attachment pipe R (branch pipe part) in a soft state, and easily follows the bent part including the branch port part Q of the attachment pipe R. The flat flange portion 2 is also adapted to the curvature of the branch port portion and exhibits non-directionality.
Further, the branch lining pipe S always maintains a circular shape by the cap 10 and the internal wire 13A.
By heating and pressurizing, the cylindrical tube 1 of the branch lining tube S expands and comes into close contact with the inner surface of the mounting tube R. Further, in the taper portion 1A in the vicinity of the flange portion 2, along with the action of the plug body 11, it follows the mounting angle of the mounting pipe R, and expands to a constant diameter pipe without causing a constriction. The flange portion 2 is in close contact with the inner surface of the existing pipe.
Therefore, the branch lining pipe S is completed by simply mounting the branch lining pipe S by integrally molding the cylindrical pipe 1 and the flange portion 2. There is no cross-sectional loss.
In this way, after repairing the existing buried pipe rod P having a small diameter that the operator cannot enter or exit, by lining it directly or with a thermoplastic synthetic resin pipe, repair and repair in the branch port portion Q and the mounting pipe R are performed. The water stop treatment is carried out continuously and integrally.

（実施形態の効果）
この実施形態の管路の分岐管路部のライニング施工方法によれば、既設管渠Ｐ内に直接的に、または熱可塑性合成樹脂材をもってなされた既設管渠ＰのライニングＬに連設して、取付け管Ｒとの分岐口部Ｑ及び取付け管Ｒ内を一体形成された分岐ライニング管Ｓをもって全体的に止水・補修作業がなされ、止水性に優れた熱可塑性合成樹脂材による一連の作業が効率的に実施しえる。これにより、従来技術よりも格段に施工効率が向上し、実用的価値が確立される。
また、本実施方法によれば、分岐ライニング管Ｓの取付け管Ｒへの引込みは軟質状態をもってなされ、取付け管Ｒの分岐口部Ｑを含む曲がり部に容易に追従することができる。
加えて、平坦状のフランジ部２も分岐口部の曲率になじみ、無方向性を発揮する。また、フランジ部２の近傍のテーパー部１Ａにおいて、栓体１１の作用と相俟って取付け管Ｒの取付け角度に追従し、くびれ部を生じることなく、一定径の管に拡径する。
これにより、簡単な形状構成をなす本分岐ライニング管Ｓにより確実な止水性が実施される。 (Effect of embodiment)
According to the lining construction method of the branch pipe portion of the pipe line of this embodiment, the pipe is connected directly to the existing pipe rod P or to the lining L of the existing pipe rod P made of a thermoplastic synthetic resin material. A series of operations using a thermoplastic synthetic resin material excellent in water-stopping is performed with a branch lining pipe S integrally formed in the mounting pipe R and the branch lining pipe S integrally formed in the mounting pipe R. Can be implemented efficiently. Thereby, construction efficiency improves markedly compared with a prior art, and practical value is established.
Further, according to this embodiment, the branch lining pipe S is drawn into the attachment pipe R in a soft state, and can easily follow the bent portion including the branch port portion Q of the attachment pipe R.
In addition, the flat flange portion 2 is adapted to the curvature of the branch port portion and exhibits non-directionality. Further, in the tapered portion 1A in the vicinity of the flange portion 2, along with the action of the plug body 11, the mounting angle of the mounting tube R is followed, and the diameter is expanded to a constant diameter tube without causing a constricted portion.
Thereby, reliable water-stopping is implemented by the main branch lining pipe S having a simple shape configuration.

本発明は叙上の実施形態に限定されるものではなく、本発明の基本的技術思想の範囲内で種々設計変更が可能である。すなわち、以下の態様は本発明の技術的範囲内に包含される。
1)叙上の実施形態では小口径の既設管渠に付いて述べたが、これに限定されるものではなく、大口径既設管渠に対しても適用できる。
2)既設管渠Ｐにポリエチレン製のライニングＬが施されたものもあるが、そのまま本実施形態の方法を実施できる。
3)叙上の実施形態では円形状の既設管渠について述べたが、方形断面の管渠であってもよい。 The present invention is not limited to the above embodiment, and various design changes can be made within the scope of the basic technical idea of the present invention. That is, the following aspects are included in the technical scope of the present invention.
1) In the above embodiment, the small diameter existing pipe rod is described. However, the present invention is not limited to this and can be applied to a large diameter existing pipe rod.
2) Although the existing pipe rod P has a polyethylene lining L, the method of this embodiment can be carried out as it is.
3) In the above embodiment, the circular existing pipe rod has been described, but a square tube pipe may be used.

本発明の管路の分岐管路部のライニング施工方法の一実施過程（前半）を示す概略構成図。The schematic block diagram which shows one implementation process (the first half) of the lining construction method of the branch pipe part of the pipe line of this invention. 施工過程（後半）を示す概略構成図。The schematic block diagram which shows a construction process (second half). 図１の部分拡大断面図。The partial expanded sectional view of FIG. 図２の部分拡大断面図。The partial expanded sectional view of FIG. 図４のエアーパッカーを省略した５−５線縦断面図。5-5 longitudinal cross-sectional view which abbreviate | omitted the air packer of FIG. 分岐ライニング管の端部部分の外観構成図。The external appearance block diagram of the edge part of a branch lining pipe. 図６の断面構成図。Sectional block diagram of FIG. 図６の８−８線縦断面図。FIG. 8 is a longitudinal sectional view taken along line 8-8 in FIG. 6. 分岐ライニング管の上部の構成図。The block diagram of the upper part of a branch lining pipe.

符号の説明Explanation of symbols

Ｓ…分岐ライニング管、Ｐ…既設管渠（本管）、Ｌ…本管内のライニング、Ｒ…取付け管、Ｑ…開口部（穿孔部、連通孔）、Ｍ…枡、Ｉ…引込み装置、Ｊ…加熱・加圧装置、
１…ライニング円筒管、１Ａ…テーパー部、２…フランジ部、１０…キャップ、１１…栓体、１３…牽引ワイヤー、１５…ウインチ、１７…エアーパッカー、３０…ボイラー、３１…コンプレッサー
S: Branch lining pipe, P: Existing pipe rod (main pipe), L: Lining in the main pipe, R: Mounting pipe, Q: Opening (perforated part, communication hole), M: Fence, I: Retraction device, J ... Heating / pressurizing device,
DESCRIPTION OF SYMBOLS 1 ... Lining cylindrical tube, 1A ... Taper part, 2 ... Flange part, 10 ... Cap, 11 ... Plug body, 13 ... Traction wire, 15 ... Winch, 17 ... Air packer, 30 ... Boiler, 31 ... Compressor

Claims (12)

本管から開口部を介して分岐する分岐管路において、当該分岐部並びに分岐管路部分にライニングを施工する方法であって、
前記分岐管路の径より小径の熱可塑性合成樹脂よりなる筒体と；この筒体の一端に連接して設けられ前記開口部の径と実質的に同径の開口を有し、該開口部の径よりも大径の外径を有する平板状のフランジ部と；からなる分岐ライニング管を加熱して軟化させ、
前記軟化状態の分岐ライニング管を前記本管側から前記開口部を介して前記分岐管路部内に引き入れるとともに、前記開口部において、前記分岐ライニング管のフランジ部を前記本管の内面に当接させ、前記筒体の両端部において密封状となすとともに、前記フランジ部を前記本管側から押圧支持し、
前記分岐ライニング管の筒体の軟質状態において該筒体内に充填する加圧媒体により加圧して前記筒体を拡径膨張させ、前記分岐管路の内面に密着させる、
ことを特徴とする管路の分岐管路部のライニング施工方法。 In the branch pipe branching from the main pipe through the opening, a method of lining the branch section and the branch pipe section,
A cylindrical body made of a thermoplastic synthetic resin having a diameter smaller than the diameter of the branch pipe; and an opening that is connected to one end of the cylindrical body and has substantially the same diameter as the opening. A branch-shaped lining pipe comprising a flat flange portion having an outer diameter larger than the diameter of
The softened branch lining pipe is drawn from the main pipe side into the branch pipe section through the opening, and the flange of the branch lining pipe is brought into contact with the inner surface of the main pipe at the opening. The cylindrical body is sealed at both ends, and the flange portion is pressed and supported from the main pipe side,
In a soft state of the cylindrical body of the branch lining pipe, pressurizing with a pressurizing medium filled in the cylindrical body to expand and expand the cylindrical body, and tightly contact the inner surface of the branch pipe line;
A lining construction method for a branch pipe section of a pipe characterized by the above. 前記分岐ライニング管の合成樹脂材は形状記憶性が付与されてなる請求項１に記載の管路の分岐管路部のライニング施工方法。   The lining construction method for a branch pipe section of a pipe according to claim 1, wherein the synthetic resin material of the branch lining pipe is provided with shape memory property. 加圧において、加熱状態を付加する請求項１又は２のいずれかの項に記載の管路の分岐管路部のライニング施工方法。   The lining construction method for a branch pipe section of a pipe according to claim 1 or 2, wherein a heating state is added in pressurization. 分岐ライニング管のフランジ部の開口と筒体とはテーパー部を介して連なる請求項１ないし３のいずれかの項に記載の管路の分岐管路部のライニング施工方法。   The lining construction method for a branch pipe portion of a pipe according to any one of claims 1 to 3, wherein the opening of the flange portion of the branch lining pipe and the cylindrical body are connected via a taper portion. 分岐ライニング管の筒体の密封は筒体のフランジ側の端部には栓体が嵌合され、筒体の他端にはキャップが密嵌されてなる請求項１ないし３のいずれかの項に記載の管路の分岐管路部のライニング施工方法。   The sealing of the cylindrical body of the branch lining pipe is made by fitting a plug body to the flange-side end of the cylindrical body and closely fitting a cap to the other end of the cylindrical body. The lining construction method of the branch pipe part of the pipe described in 2. 分岐ライニング管のフランジ部の押圧支持はエアーパッカーによりなされる請求項４又は５のいずれかの項に記載の管路の分岐管路部のライニング施工方法。   The lining construction method for a branch pipe section of a pipe according to any one of claims 4 and 5, wherein the pressure support of the flange section of the branch lining pipe is performed by an air packer. 本管から開口部を介して分岐する分岐管路において、当該分岐部並びに分岐管路部分にライニングを施工する方法であって、
前記分岐管路の径より小径の熱可塑性合成樹脂よりなるとともに熱形状記憶性が付与されてなる筒体と；この筒体の一端に連接して設けられ前記開口部の径と実質的に同径の開口を有し、該開口部の径よりも大径の外径を有する平板状のフランジ部と；からなる分岐ライニング管を加熱して軟化させ、
前記軟化状態の分岐ライニング管を前記本管側から前記開口部を介して前記分岐管路部内に引き入れるとともに、前記開口部において、前記分岐ライニング管のフランジ部を前記本管の内面に当接させ、前記筒体の両端部において密封状となすとともに、前記フランジ部を前記本管側から押圧支持し、
前記分岐ライニング管の筒体に加熱媒体を充填して前記筒体を拡径膨張させ、前記分岐管路の内面に密着させる、
ことを特徴とする管路の分岐管路部のライニング施工方法。 In the branch pipe branching from the main pipe through the opening, a method of lining the branch section and the branch pipe section,
A cylinder made of a thermoplastic synthetic resin smaller in diameter than the branch pipe and provided with thermal shape memory; and connected to one end of the cylinder and substantially the same as the diameter of the opening. A branch-shaped lining pipe having an opening having a diameter and a flat flange portion having an outer diameter larger than the diameter of the opening;
The softened branch lining pipe is drawn from the main pipe side into the branch pipe section through the opening, and the flange of the branch lining pipe is brought into contact with the inner surface of the main pipe at the opening. The cylindrical body is sealed at both ends, and the flange portion is pressed and supported from the main pipe side,
Filling the cylinder of the branch lining pipe with a heating medium to expand and expand the cylinder, and tightly contact the inner surface of the branch pipe;
A lining construction method for a branch pipe section of a pipe characterized by the above. 分岐ライニング管の拡径膨張に圧力を付加する請求項７に記載の管路の分岐管路部のライニング施工方法。   The method for lining a branch pipe section of a pipe according to claim 7, wherein pressure is applied to the expansion of the diameter of the branch lining pipe. 本管から開口部を介して分岐する分岐管路において、当該分岐部並びに分岐管路部分にライニングを施工する方法に使用する分岐ライニング管であって、
前記分岐管路の径より小径の熱可塑性合成樹脂よりなる筒体と、
前記筒体の一端に連接して設けられ前記開口部の径と実質的に同径の開口を有し、該開口部の径よりも大径の外径を有する平板状のフランジ部と、
からなることを特徴とする分岐ライニング管。 A branch lining pipe used for a method of lining a branch pipe line branching from the main pipe through an opening in the branch pipe part and the branch pipe part,
A cylinder made of a thermoplastic synthetic resin having a smaller diameter than the diameter of the branch pipe;
A flat flange portion having an opening that is connected to one end of the cylindrical body and has substantially the same diameter as the diameter of the opening, and an outer diameter larger than the diameter of the opening;
A branched lining tube characterized by comprising: 分岐ライニング管の合成樹脂材は形状記憶性が付与されてなる請求項９に記載の分岐ライニング管。   The branch lining pipe according to claim 9, wherein the synthetic resin material of the branch lining pipe is provided with shape memory property. 本管から開口部を介して分岐する分岐管路において、当該分岐部並びに分岐管路部分にライニングを施工する方法に使用する分岐ライニング管であって、
前記分岐管路の径より小径の熱可塑性合成樹脂よりなるとともに熱形状記憶性が付与されてなる筒体と、
前記筒体の一端に連接して設けられ前記開口部の径と実質的に同径の開口を有し、該開口部の径よりも大径の外径を有する平板状のフランジ部と、
からなることを特徴とする分岐ライニング管。 A branch lining pipe used for a method of lining a branch pipe line branching from the main pipe through an opening in the branch pipe part and the branch pipe part,
A cylindrical body made of a thermoplastic synthetic resin having a smaller diameter than the diameter of the branch pipe and having a thermal shape memory property,
A flat flange portion having an opening that is connected to one end of the cylindrical body and has substantially the same diameter as the diameter of the opening, and an outer diameter larger than the diameter of the opening;
A branched lining tube characterized by comprising: 分岐ライニング管のフランジ部の開口と筒体とはテーパー部を介して連なる請求項９ないし１１のいずれかの項に記載の分岐ライニング管。
The branch lining pipe according to any one of claims 9 to 11, wherein the opening of the flange portion of the branch lining pipe and the cylindrical body are connected via a taper portion.
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Cited By (2)

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JP2008038393A (en) * 2006-08-03 2008-02-21 Shonan Plastic Mfg Co Ltd Branch pipe lining material and branch pipe lining method
JP2014084939A (en) * 2012-10-23 2014-05-12 Yone Kk Method of encapsulating peripheral edge of boring part formed at regeneration pipe and structure of encapsulating peripheral edge

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JPH1034750A (en) * 1996-07-23 1998-02-10 Kansui Kogyo Kk Lining material for duct
JP2001124243A (en) * 1999-10-21 2001-05-11 Sekisui Chem Co Ltd Method and device for repairing branched portion of pipe
JP2003011223A (en) * 2001-03-29 2003-01-15 Sekisui Chem Co Ltd Method for lining embedded attaching pipe with regeneration pipe

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Publication number Priority date Publication date Assignee Title
JPH1034750A (en) * 1996-07-23 1998-02-10 Kansui Kogyo Kk Lining material for duct
JP2001124243A (en) * 1999-10-21 2001-05-11 Sekisui Chem Co Ltd Method and device for repairing branched portion of pipe
JP2003011223A (en) * 2001-03-29 2003-01-15 Sekisui Chem Co Ltd Method for lining embedded attaching pipe with regeneration pipe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008038393A (en) * 2006-08-03 2008-02-21 Shonan Plastic Mfg Co Ltd Branch pipe lining material and branch pipe lining method
JP4682105B2 (en) * 2006-08-03 2011-05-11 株式会社湘南合成樹脂製作所 Branch pipe lining material and branch pipe lining method
JP2014084939A (en) * 2012-10-23 2014-05-12 Yone Kk Method of encapsulating peripheral edge of boring part formed at regeneration pipe and structure of encapsulating peripheral edge

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