JP3006374U

JP3006374U - Inner surface repair device for resin coated pipe at branch pipe connection

Info

Publication number: JP3006374U
Application number: JP1994005550U
Authority: JP
Inventors: 若林　　正
Original assignee: 株式会社住吉製作所
Priority date: 1994-04-20
Filing date: 1994-04-20
Publication date: 1995-01-24
Anticipated expiration: 2000-04-20

Abstract

(57)【要約】（修正有）【目的】枝管接続部の枝管端部を効果的に樹脂被覆補修
すること。【構成】本管１３内を移動自在である筒状の補修ケース
の周面の中央部の一部に筒体支持ケース３０を通過自由
とする開口を形成する。筒体支持ケース３０でゴム管体
３１を装備した筒体３２を支持するとともに、筒体支持
ケース３０と筒体３２との間を筒体３２の長手方向に伸
縮駆動する垂直伸縮装置Ｅ１を設ける。筒体３２の移動
案内装置を設ける。補修ケースに水平伸縮装置Ｅ２を内
装する。 (57) [Summary] (Modified) [Purpose] To effectively repair the end of the branch pipe of the branch pipe connection with a resin coating. [Structure] An opening is formed in a central portion of a peripheral surface of a tubular repair case that is movable in a main pipe 13 so that the tubular support case 30 can freely pass therethrough. A vertical expansion / contraction device E1 is provided which supports the tubular body 32 equipped with the rubber tubular body 31 with the tubular body support case 30 and drives the extension / contraction between the tubular body support case 30 and the tubular body 32 in the longitudinal direction of the tubular body 32. . A movement guide device for the cylindrical body 32 is provided. The horizontal expansion device E2 is installed inside the repair case.

Description

【考案の詳細な説明】【０００１】【産業上の利用分野】本願考案は、下水管路、流体搬送路等における、枝管（流入管路）と本管（本流管路）との接続部、即ち枝管分岐部に発生した破損、亀裂や接合不良等の補修を管路内面から樹脂被覆補修する技術に関する。より詳しくは、枝管分岐部の枝管内面に、熱硬化性樹脂を含浸した樹脂被覆補修材の加熱硬化により樹脂被覆補修材を密着させることで、枝管分岐部の枝管端部を樹脂被覆補修する技術に関するにものである。【０００２】【従来技術】この種の管路内面からの枝管分岐部の樹脂被覆補修の技術に関し、特開平５− １６２４０号「分岐管のライニング工法」が公知である。また、枝管分岐部を本管側より枝管側へ樹脂被覆補修の一部を突出させることにより接続部を樹脂被覆補修する技術につき、特開平６−１０３９９号「管路内面の補修方法」が公知である。【０００３】【考案が解決しようとする課題】上記の第１の公知技術は、分岐管内に樹脂チューブ挿入し加圧膨張させて管路内面に圧着し加熱硬化し補修するもので、分岐管内全体を補修するには適するものであるが、限定された接続部のみ補修には経済的に適切でない問題点がある。上記の第２の公知技術は、「円筒体の外部にゴム管を遊篏させ、該ゴム管の
外周面に熱硬化性樹脂を含浸した樹脂被覆補修材を巻付けた補修装置を、管路内を移動させて、破損、亀裂や接合不良等の補修すべき箇所に位置させたのち、加圧空気の供給によりゴム管を膨らませることによりゴム管の外周面の樹脂被覆補修材を補修箇所の管路内面に圧着させ加熱して樹脂硬化させ、管路内面を樹脂被覆する補修方法において、熱硬化性樹脂を含浸した樹脂被覆補修材の中央部に十字の切込みを入れたものを補修材として使用し、該補修材を巻付けた補修装置を枝管分岐部へ移動し、該補修材をゴム管の外周面に巻付けた補修装置を回動させ補修材の十字の切込みを枝管と対向位置としたのち、ゴム管を膨らませるとともに加熱することで、熱硬化性樹脂を含浸した樹脂被覆補修材の加熱硬化により樹脂被覆補修材を枝管分岐部の本管の内面と枝管の内面とに密着、硬化させることで、枝管分岐部を樹脂被覆補修する補修方法」を開示しているが、樹脂被覆補修材の中央部に十字の切込みを形成し十字の切込みを有する中央部が変形することで樹脂被覆補修材の一部を枝管側に湾曲させ枝管内面に密着させて樹脂被覆するものであるから、枝管側の樹脂被覆範囲は樹脂被覆補修材における十字の切込みを有する中央部の変形部分に限定されることで、枝管側の樹脂被覆範囲が不十分で、分岐接続部近傍の枝管（分岐管）下端部の樹脂被覆補修が不完全となる問題点がある。本願考案は、上記の第１の公知技術および第２の公知技術の問題点を解消すべく、枝管分岐部の枝管内面の補修範囲を枝管の内径以上の任意の長さで且つ補修位置を任意に選択自在とすることで、枝管の本管接続近傍部分のみを効果的に且つ確実に樹脂被覆補修することを課題とする。【０００４】【課題を解決するための手段】本願第１考案は、本管内を移動自在である筒状の補修ケースを設け、該補修ケースの周面の中央部の一部に、補修する枝管接続部の枝管の断面に近似する円形の開口を設け、前記開口および枝管断面に比して小さい断面形状で前記開口を通過して補修する枝管内に挿入自在である筒体支持ケースを設け、ゴム管体を装備した筒体を前記筒体支持ケースで支持するとともに、筒体支持ケースと筒体との間に筒体の長手方向に伸縮する垂直伸縮装置を設け、筒体の頂面および該筒体の底面にそれぞれ滑動体を固定し、補修ケース内に前記開口の一端より補修ケース底面を経て更に延長位置に至るガイド板を補修ケースに内装して、筒体移動案内装置を設け、補修ケースに内装され、水平方向に伸縮する水平伸縮装置を設け、前記水平伸縮装置の端部と筒体支持ケースの底部とを、リンクアームを介して連結し、前記筒体支持ケースを、前記筒体移動案内装置と前記水平伸縮装置により、補修ケース内の水平に近い格納位置より開口を通過してその大部分を枝管内へ挿入した垂直状態の作業位置へ移動させるとともに、その大部分を枝管内へ挿入した垂直状態の作業位置において、垂直伸縮装置の筒体長手方向の伸縮作動により筒体およびゴム体を枝管の長手方向位置を変更自在としたことを特徴とする枝管接続部の樹脂被覆式管内面補修装置を提供する。本願第２発明は、本願第１発明における補修ケースを、本管補修筒体および本管補修ゴム管体を装備した管路内壁補修具とし、本管内を移動自在である管路内壁補修具の本管補修筒体および本管補修ゴム管体のそれぞれの周面の中央部の一部に、補修する枝管接続部の枝管の断面に近似する円形の開口を設けることにより、本願第１発明による枝管端部の樹脂被覆補修に加えて、本管補修筒体に装備した本管補修ゴム管体により枝管接続部の本管内壁を樹脂被覆補修することを特徴とする枝管接続部の樹脂被覆式管内面補修装置を提供する。【０００５】【実施例】以下、図面を参照して本考案の実施例を説明する。本願考案の説明に先立って、図７ないし図１５を参照して、本願出願人の先願考案にかかる、特願平５−９３６６２号「分岐管接続部の樹脂被覆式管内面補修方法、分岐管接続部の樹脂被覆式管内面補修装置および分岐接続部補修材」を説明する。【０００６】図１０ないし図１３は、上記の先願考案の実施にあたり使用する管路内壁補修具Ａを示し、内円筒２と外円筒３との二重円筒構造の円筒体１のの両端に円板４、４を溶接等により固定して内円筒２と外円筒３との間に環状室Ｃを形成し内円筒２の内心側に貫通室Ｄを形成し、前記円筒体１の円板４、４にゴム管体５をバンド６による緊締取付け等の固定手段により密封状態でゴム管体５を円筒体１と一体化してゴム管体５を円筒体１の外円筒３との間に加圧室Ｅを形成し、外円筒３の外周面に加熱用ヒーター７を巻回して加圧室Ｅを加熱自在とし、環状室Ｃに温度センサー８を内装する。【０００７】円筒体１の円板４、４を軸受２１を介して支軸２２で軸支して支軸２２を中心として円筒体１、ゴム管体５および補修材Ｍを回動自在とし、支軸２２を走行輪２３で支持される脚２４に固定し、環状室Ｃに内装したモータ２５の出力軸に固定したギヤー２６と支軸２２に固定したギヤー２７とを噛合わせて、モータ２５の起動で円筒体１、ゴム管体５および補修材Ｍを走行輪２３で支持される脚２４に対し任意の相対角度に変更自在とした。２８はリミットスイッチである。【０００８】円板４に牽引金具９を固定し、牽引金具９に一端に接続したワイヤー１０をウインチ等による牽引で管路内を移動自在とする。また、円板４には加圧空気供給口１１が設けらており、前記加圧空気供給口１１に接続したエヤーホース１２より加圧空気を供給することで、ゴム管体５を膨らませ加圧室Ｅを拡大させ、ゴム管体５を管路１３の内面に圧接自在とする。【０００９】つぎに、管路内壁の補修に使用する補修材は、ガラス繊維やカーボン繊維を芯材に、不飽和ポリエステル樹脂、エポキシ樹脂、リポキシ樹脂のバインダーを均等に含浸してマット状とした合成樹脂製品である。補修材Ｍの強度や厚さは、芯材および含浸する樹脂の量により調整する。【００１０】図９は、分岐接続部用補修材Ｍを示し、中央部に変形エリヤ２０が存在する。変形エリヤ２０は、図９の(ａ)の実施例では、中央部に複数個の切断線２１が形成されて、分岐接続部用補修材Ｍの中央部を前面側または後面側へ折曲自在とする。図９の(ｂ)の実施例では、中央部に中心貫通孔２２を形成するとともに、該中心貫通孔２２の周囲の肉薄または軟質の変形部２３を形成することで、変形エリヤ２０を構成する。図９の(ｃ)の実施例では、中央部に中心貫通孔２２を形成するとともに、該中心貫通孔２２の周囲に放射方向に形成された複数本の肉薄または軟質の破断線部２４を形成することで、変形エリヤ２０を構成する。【００１１】管路内壁の分岐管接続部の補修作業にあたっては、上記のマット状の分岐接続部用補修材Ｍをゴム管体５の外周に巻付けるが、ゴム管体５への補修材Ｍの巻付けにあたり、ゴム管体５の表面には分岐接続部用補修材Ｍの付着を防ぐためのにグリース（油脂類）、付着防止シート等をゴム管体５と分岐接続部用補修材Ｍとの間に介在させる。図１４を参照して、ゴム管体５の外周に分岐接続部用補修材Ｍを巻付けたのち、管路内壁補修具Ａを管路１３内に引込み、ワイヤー１０をウインチ等１９により牽引して不良箇所まで管路１３内を移動させる。この際、管路内壁を監視するＴＶカメラ１６からの映像信号にもとづき地上の作業監視車１４内のモニターテレビ１５で管路内壁の補修箇所を検知して地上の内面作業車１８のウインチ等１７による牽引を指示することで、管路内壁補修具Ａが所定の管路内壁不良箇所（補修箇所）まで牽引されることは、先願考案と同様である。【００１２】管路内壁補修は、分岐管接続部を対象するものであるから、上記の方法で管路内壁補修具Ａを補修箇所の分岐管接続部まで移動させる。補修箇所の分岐管接続部の分岐管２５にモニターテレビ２６を挿入する（図７のａ参照）。モニターテレビ２６で分岐管２５の端部に対向する補修材Ｍの表面を視認しつつ、モータ２５に通電して管路内壁補修具Ａの円筒体１を回動させ、補修材Ｍの変形エリヤ２０を分岐管２５と対向位置とする（図８のａ参照）。【００１３】管路内の破損箇所の分岐管接続部の分岐管２５に、補修材Ｍの変形エリヤ２０が対向したことをモニターテレビ２６で確認したのち、管路内壁補修具Ａの加圧室Ｅに加圧空気を送込む。加圧空気の加圧室Ｅへの送込を継続して、ゴム管体５が管路１３の内面に圧接するまで膨らませ、更に加圧室Ｅへ加圧空気を送込むことにより、分岐管２５と対向位置のゴム管体５は分岐管２５内へ突出する。ゴム管体５の分岐管２５内へ突出により、補修材Ｍの変形部２０は分岐管２５内へ押出されて変形し、変形部２０の中心部は開口（または、中心貫通孔２２が拡大）し、変形部２０の周辺部は分岐管２５と対向するように変形部２０は屈曲する（図７のｂおよび図８のｂ参照）。【００１４】更に、更に加圧室Ｅへ加圧空気を送込むことで、分岐管２５内へのゴム管体５の突出量は増大することにより、補修材Ｍの変形部２０の分岐管２５側へ屈曲は増大し、最後には、補修材Ｍの変形部２０は、ゴム管体５と分岐路２６の内面との間に押し付けられ、分岐管２５の内面に密着状態となる（図８のｃ参照）。【００１５】この状態で一定時間保持すれば補修材Ｍは硬化するが、このとき周囲温度が低い場合は硬化時間が長くなり不安定になるので、加熱用ヒーター７の通電により補修材Ｍを加熱し硬化の安定化と硬化時間の短縮をはかる。温度センサー８による環状室Ｃ、ゴム管体５、補修材Ｍ等の温度の計測により制御装置Ｂを介して、加熱用ヒーター７による加熱を遠隔操作して、補修材Ｍを所定温度範囲に維持する。所定時間の経過により補修材Ｍが硬化することで、補修材Ｍは管路１３の内壁および分岐管２５に密着して、先願考案による分岐管接続部に対する管路内壁補修作業が完了する。【００１６】所定の補修箇所の補修作業の完了ののち、加熱用ヒーター７に対する通電を停止するとともに、加圧室Ｅの加圧空気を抜きゴム管体５を収縮させゴム管体５の表面を管路１３の内面より離脱させ、管路内壁補修具Ａの移動を自在とする。ワイヤーをウインチ等により牽引して次の管路内壁の不良箇所まで管路内壁補修具Ａの移動させて、管路内壁補修作業を継続するか、管路内壁補修具Ａを地上に引上げて補修作業を完了する。【００１７】管路内壁補修具は、実施例では、牽引ワイヤー方式で移動させたが、遠隔制御の自走式（ロボット式）としてもよいものである。【００１８】先願考案による接続部用補修材Ｍと本管補修材との接続は任意に設定できるが、一部を重複させた場合において、接続部用補修材Ｍの補修作業に対し、本管補修材の補修作業を先行させるか、接続部用補修材Ｍによる補修作業を、本管補修材Ｎによる本管の補修作業に対し先行させるかは任意である。【００１９】本願第１考案は、枝管（分岐管）の端部を補修するもので、上記の先願考案による接続部用補修材Ｍによる接続部用補修に追加してまたは独立して枝管（分岐管）接続部を補修するものである。図１を参照して、本管１３内を移動自在である筒状の補修ケース３Ａを設け、該補修ケース３Ａの周面の中央部の一部に、補修する枝管接続部の枝管の断面に近似する円形の開口Ｈを設ける。前記開口Ｈおよび枝管断面に比して小さい断面形状で前記開口を通過して補修する枝管内に挿入自在である筒体支持ケース３０を設ける。図２は、本願第２発明の実施例を示し、第１考案の前記補修ケース３Ａに代えて本管内壁補修具Ｂの筒体とする。本管内壁補修具Ｂは、前述の先願考案における管路内壁補修具Ａを適用して、本管内を移動自在、且つ、回動自在とすることで、ゴム管体５の外周に巻付けた分岐接続部用補修材Ｍまたは本管補修材Ｎを先願考案を適用して管路本管１３の分岐接続部または本管に密着させて樹脂被覆補修を可能とする。本願考案の実施にあたり、管路内壁補修具Ｂは、筒体（本管補修筒体）３およびゴム管体（本管補修ゴム管体）５のそれぞれの周面の中央部の一部に、枝管（分岐管）２５の断面形状に対応する径の円形形状の開口Ｈを形成する。【００２０】図１ないし図４を参照して、Ｃは、枝管内壁補修具であり、加圧空気の供給により拡大してその周面が管路内面に圧着させ得るゴム管体３１を筒体３２に装備して構成し、補修すべき枝管２５内に挿入自在とする断面形状とする（実施例では、枝管２５の断面の径の半分を径とする円形とした）。３６は、第２管路内壁補修具Ｃのゴム管体３１に加圧空気を供給するための加圧空気ホースである。【００２１】枝管内壁補修具Ｃの筒体３２を筒体支持ケース３０で支持するが、筒体３２と一体の支持体３２Ａと筒体支持ケース３０との間に筒体の長手方向に伸縮する垂直伸縮装置Ｅ１を介装する。【００２２】筒体３２の頂面および該筒体の底面にそれぞれ滑動体３３および３４を固定し、補修ケース３Ａ［または、本管内壁補修具Ｂの本管補修筒体３］内に前記開口の一端より補修ケース底面を経て更に延長位置に至るガイド板３５を補修ケース３Ａ［本管内壁補修具Ｂの本管補修筒体３］に内装して、枝管内壁補修具Ｃにたいする移動案内装置Ｄを構成する。【００２３】図３および図６を参照して、水平方向に伸縮する水平伸縮装置Ｅ２を補修ケース３Ａ［本管内壁補修具Ｂの筒体３］に内装する。水平伸縮装置Ｅ２は、駆動軸４０を補修ケース３Ａに固定した支持板４２、４２で水平移動自在に支持し、電磁式シリンダー４３、４３を駆動軸４０と平行に位置させて支持板４２、４２に固定し、電磁式シリンダー４３、４３にホース４４を通して加圧空気または作動油を供給して電磁式シリンダー４３、４３のシリンダー内の磁石を移動させることで、電磁式シリンダー４３、４３の周面を移動自在とした駆動体４４を水平方向に駆動自在とし、駆動体４４を連結体４５を介して駆動軸４０に固定して、電磁式シリンダー４３、４３の作動により駆動体４４を水平方向に移動自在として構成する。前記水平伸縮装置Ｅ２の駆動軸４０の出力端部と筒体支持ケース３０とを、リンクアーム４６を介して連結し、遊合状態の枢支点Ｐ１、Ｐ２を介して、前記水平伸縮装置Ｅ２の駆動軸４０と筒体支持ケース３０とを連結する。前記水平伸縮装置Ｅ２の作動により、枢支点Ｐ２を直線軌跡Ｗ２で水平移動させることで、枢支点Ｐ１を曲線軌跡Ｗ１で移動させ、枝管内壁補修具Ｃを水平伸縮装置Ｅ２の伸長作動により起立させる構成とする。伸縮装置Ｅの伸長による起立にもとづき、第２管路内壁補修具Ｃは、前記移動案内装置に誘導されて、第１管路内壁補修具Ｂの筒体内の水平に近い格納位置より第２管路内壁補修具Ｃの筒体内にその大部分を挿入した垂直状態の作業位置へ移動する。【００２４】つぎに、本考案による枝管分岐部の管路内面樹脂被覆補修について説明する。枝管内壁補修具Ｃのゴム管体３１に本管補修材Ｎと同様の枝管補修材Ｒを巻付けたのち、枝管内壁補修具Ｃを、補修ケース３Ａ内［本館内壁補修具Ｂの本管補修筒体３内］の格納位置とした状態で本管内を内壁補修すべき枝管分岐部へ移動させる（図１および図２実線位置）。水平伸縮装置Ｅ２の伸縮作動と、筒体移動案内装置Ｄのガイド作用により、枝管内壁補修具Ｃを枝管２５内へ押込むことにより、枝管内壁補修具Ｃの大部分を枝管２５の内部に挿入する（図１および図２想線位置、図３参照）。枝管内壁補修具Ｃのゴム管体３１と筒体３２との間に加圧空気ホース３６を通して加圧空気を供給することによりゴム管体３１が膨張する。その結果、ゴム管体３１の周面を枝管内面に押圧し、第２ゴム管体３１の周面に巻付けた補修材Ｒを枝管内面に密着する（図４参照）。【００２５】この際、補修材Ｒによる樹脂補修箇所は、枝管長手方向位置が選択自在である。即ち図１および図２想線位置の枝管内壁補修具Ｃを起立させその大部分を枝管内とした状態で、制御用ホース（図示省略）よりの加圧空気、作動油の供給で垂直伸縮装置Ｅ１の伸縮作動させることにより、枝管内壁補修具Ｃの筒体３２を枝管長手方向に適宜移動させて、枝管長手方向位置が選択する。図５は、図４に比して上方位置を選択した場合を示すものである。【００２６】ゴム管体３１を加熱することで、補修材Ｒを加熱して、補修材Ｒを樹脂硬化させ樹脂被覆して、枝管の下端部の樹脂被覆作業を完了する。樹脂被覆作業を完了ののち、垂直伸縮装置Ｅ１およびの水平伸縮装置Ｅ２の縮小作動により図１、図２の逆動作により枝管内壁補修具Ｃを補修ケース３Ａ内（本館補修筒体３内）の格納位置とする。そののち、本管１３内を移動させて回収し次ぎの補修作業に移る。【００２７】実施例では、枝管２５は、水平方向の本管１３に対し垂直方向として、本管１３と直交する位置関係としたが、枝管２５が水平状態または傾斜方向に位置して本管１３と直交する場合においては、垂直伸縮装置Ｅ１は本管の管路断面視で本管１３と直交方向に伸縮作動するものであるから、補修ケース３Ａ内（本館補修筒体３内）の開口Ｈを枝管下端面に対向させることで本考案を適用できるものである。また、枢支点Ｐ１、Ｐ２は遊合状態としたので、本管１３と枝管とが、本管長手方向および本管断面方向に直交状態に対し前後左右に傾斜角が存在する位置関係でも本考案を適用できるものである。【００２８】なお、第２考案においては、上述の補修材Ｒによる枝管の下端部の樹脂被覆作業ののち、または先行して、本管内壁補修具Ｂの本管補修ゴム管体５の外周に巻付けた接続部用補修材Ｍを先願考案を適用して枝管接続部の管路本管１３および枝管下端に対する樹脂被覆補修を行うものである。この場合に、両補修材Ｍ、Ｒの一部を重複させることがのぞましいが、枝管内壁補修具Ｃによる補修材Ｒによる補修と、本管内壁補修具Ｂによる接続部用補修材Ｍによる補修のいずれを先行させるかは任意である。【００２９】【効果】本願第１考案は、枝管接続部の樹脂補修を行うにあたり、枝管下端部について枝管長手方向位置を任意に選択して樹脂被覆補修できることで、必要とする補修箇所に対して的確かつ完全な樹脂被覆補修を行うことができる。本願第２考案は、第１考案の効果に加えて、枝管接続部の枝管端面の樹脂被覆補修を完全に行うことができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting portion between a branch pipe (inflow pipe line) and a main pipe (main flow pipe line) in a sewer pipe line, a fluid conveying line, or the like. That is, the present invention relates to a technique for repairing damages, cracks, joining defects, etc., which have occurred at a branch portion of a branch pipe, from a pipe inner surface. More specifically, the inner surface of the branch pipe of the branch pipe branch is adhered to the resin-coated repair material by heat-curing the resin-coated repair material impregnated with the thermosetting resin, so that the end of the branch pipe of the branch pipe branch is made of resin. It relates to a technique for repairing coating. 2. Description of the Related Art A technique for repairing a resin coating on a branch portion of a branch pipe from the inner surface of the pipe of this type is known from Japanese Patent Application Laid-Open No. 5-16240, "lining method for branch pipe". Also, regarding the technique of repairing the resin coating of the connection portion by projecting a part of the resin coating repair of the branch pipe branch portion from the main pipe side to the branch pipe side, Japanese Patent Laid-Open No. 6-10399 "Repair Method of Inner Surface of Pipe" Is known. The above-mentioned first known technique is to insert a resin tube into a branch pipe, expand it under pressure, press it against the inner surface of the pipe line, heat cure it, and repair it. However, there is a problem that it is economically inadequate to repair only a limited connection part. The above-mentioned second known technique is "a rubber tube is loosely attached to the outside of a cylindrical body, and a repair device in which a resin-coated repair material impregnated with a thermosetting resin is wound around the outer peripheral surface of the rubber tube is used as a pipeline. After moving the inside to locate it at the point to be repaired such as damage, cracks or defective joints, inflate the rubber tube with the supply of pressurized air to repair the resin-coated repair material on the outer peripheral surface of the rubber tube. In the repair method of pressure-bonding to the inner surface of the pipe and heating to cure the resin, and coating the inner surface of the pipe with a resin, the repair material is a resin-coated repair material impregnated with a thermosetting resin with a cross cut in the center. The repair device wound with the repair material is moved to the branch pipe branching portion, and the repair device wound with the repair material around the outer peripheral surface of the rubber pipe is rotated to make a cross cut in the repair material. After setting the position opposite to, heat the rubber tube by inflating it and heating it. Repairing the branch of the branch pipe with the resin by intimately adhering the resin-covered repair material to the inner surface of the main pipe of the branch pipe branch and the inner surface of the branch pipe by heat-curing the resin-coated repair material impregnated with the hydrophilic resin `` Repair method '' is disclosed, but a cross cut is formed in the center of the resin-coated repair material, and the center portion having the cross cut is deformed to bend a part of the resin-coated repair material to the branch pipe side. Since the resin coating is performed by closely contacting the inner surface of the branch pipe, the resin coating range on the branch pipe side is limited to the deformed portion of the center portion having the cross cut in the resin coating repair material, and thus the resin on the branch pipe side is There is a problem that the coating range is insufficient and the resin coating repair of the lower end of the branch pipe (branch pipe) near the branch connection part is incomplete. In order to solve the problems of the first known technology and the second known technology, the invention of the present application repairs the repair range of the inner surface of the branch pipe of the branch pipe branch portion to an arbitrary length equal to or larger than the inner diameter of the branch pipe. By arbitrarily selecting the position, it is an object to effectively and surely repair the resin coating only in the vicinity of the main pipe connection of the branch pipe. According to a first aspect of the present invention, a tubular repair case that is movable in a main pipe is provided, and a branch to be repaired is provided at a part of a central portion of a peripheral surface of the repair case. A cylindrical support case provided with a circular opening that approximates the cross section of the branch pipe of the pipe connection portion, and having a cross-sectional shape smaller than the opening and the cross section of the branch pipe and insertable into the branch pipe to be repaired by passing through the opening. Is provided, and a tubular body equipped with a rubber tubular body is supported by the tubular body support case, and a vertical expansion / contraction device that extends and contracts in the longitudinal direction of the tubular body is provided between the tubular body support case and the cylindrical body. A sliding body is fixed to each of the top surface and the bottom surface of the tubular body, and a guide plate that extends from one end of the opening to the extended position from one end of the opening to the extended position in the repair case is internally provided in the repair case, and the tubular body movement guide device is provided. Is installed inside the repair case and expands and contracts horizontally. A horizontal expansion / contraction device is provided, and the end of the horizontal expansion / contraction device and the bottom of the cylindrical support case are connected via a link arm, and the cylindrical support case is connected to the cylindrical movement guide device and the horizontal expansion / contraction device. Allows the main part of the repair case to pass through the opening to move to the vertical working position where it is inserted into the branch pipe, and most of the vertical working position is inserted into the branch pipe. In the above, there is provided a resin-covered pipe inner surface repairing device for a branch pipe connecting portion, characterized in that the position of the tubular body and the rubber body in the longitudinal direction of the branch pipe can be freely changed by the expansion and contraction operation of the vertical expansion device in the longitudinal direction of the cylinder. To do. A second invention of the present application is a repair tool of the first invention of the present application, wherein the repair case is a conduit inner wall repair tool equipped with a main repair cylinder and a main repair rubber tube, and is a conduit inner wall repair tool movable in the main pipe. By providing a circular opening close to the cross section of the branch pipe of the branch pipe connection portion to be repaired in a part of the central portion of the peripheral surface of each of the main repair cylinder and the main repair rubber pipe, In addition to the resin coating repair of the end portion of the branch pipe according to the invention, a branch pipe connection characterized in that the inner wall of the main pipe of the branch pipe connecting portion is resin-coated with a rubber pipe body for repairing the main pipe equipped in the main repair cylinder. Provided is a resin-covered pipe inner surface repairing device for a pipe part. Embodiments of the present invention will be described below with reference to the drawings. Prior to the description of the present invention, referring to FIGS. 7 to 15, Japanese Patent Application No. 5-93662 “Resin coating type pipe inner surface repairing method for branch pipe connection portion, branch A resin-coated pipe inner surface repairing device for a pipe connecting portion and a branch connecting portion repairing material "will be described. 10 to 13 show a conduit inner wall repairing tool A used for carrying out the above-mentioned prior invention, which is provided at both ends of a cylindrical body 1 having a double cylindrical structure of an inner cylinder 2 and an outer cylinder 3. The circular plates 4, 4 are fixed by welding or the like to form an annular chamber C between the inner cylinder 2 and the outer cylinder 3, and a through chamber D is formed on the inner core side of the inner cylinder 2 to form the circular plate of the cylindrical body 1. The rubber tube body 5 is integrated with the cylindrical body 1 in a hermetically sealed manner by fixing means such as a band 6 to the rubber tube body 5 and the outer cylindrical body 3 of the cylindrical body 1. The pressurizing chamber E is formed, the heater 7 for heating is wound around the outer peripheral surface of the outer cylinder 3 to freely heat the pressurizing chamber E, and the temperature sensor 8 is incorporated in the annular chamber C. The circular plates 4, 4 of the cylindrical body 1 are rotatably supported by a support shaft 22 via a bearing 21, and the cylinder body 1, the rubber tube body 5, and the repair material M are rotatable about the support shaft 22, The support shaft 22 is fixed to the leg 24 supported by the traveling wheel 23, and the gear 26 fixed to the output shaft of the motor 25 installed in the annular chamber C and the gear 27 fixed to the support shaft 22 are meshed with each other to form the motor 25. The cylinder body 1, the rubber tube body 5, and the repair material M can be freely changed to an arbitrary relative angle with respect to the leg 24 supported by the running wheel 23 by the activation of. 28 is a limit switch. A pulling member 9 is fixed to the disk 4, and a wire 10 connected to one end of the pulling member 9 is made movable in a pipe line by pulling with a winch or the like. Further, the disk 4 is provided with a pressurized air supply port 11, and by supplying pressurized air from an air hose 12 connected to the pressurized air supply port 11, the rubber tube body 5 is inflated and the pressure chamber is expanded. E is enlarged so that the rubber pipe body 5 can be pressed against the inner surface of the pipe line 13. Next, the repair material used for repairing the inner wall of the conduit is formed into a mat shape by uniformly impregnating glass fiber or carbon fiber into a core material and a binder of unsaturated polyester resin, epoxy resin or lipoxy resin. It is a synthetic resin product. The strength and thickness of the repair material M are adjusted by the amounts of the core material and the resin to be impregnated. FIG. 9 shows a repair material M for a branch connection part, in which a deformation area 20 is present in the central part. In the modified area 20, in the embodiment of FIG. 9A, a plurality of cutting lines 21 are formed in the central portion, and the central portion of the repair material M for branch connection portion can be bent to the front side or the rear side. And In the embodiment of FIG. 9B, the deformation area 20 is formed by forming the central through hole 22 in the central portion and forming the thin or soft deforming portion 23 around the central through hole 22. . In the embodiment of FIG. 9 (c), a central through hole 22 is formed in the central portion, and a plurality of thin or soft fracture line portions 24 radially formed around the central through hole 22 are formed. By doing so, the modified area 20 is configured. In repairing the branch pipe connecting portion on the inner wall of the pipe line, the mat-like repair material M for branch connecting portion is wound around the outer periphery of the rubber pipe body 5, but the repair material M for the rubber pipe body 5 is wound. In order to prevent the adhesion of the branch connecting portion repair material M on the surface of the rubber tube body 5, grease (oils and fats), an adhesion preventing sheet, etc. are attached to the rubber tube body 5 and the branch connecting portion repair material M. Intervene between. With reference to FIG. 14, after the repair material M for the branch connection portion is wound around the outer circumference of the rubber tube body 5, the conduit inner wall repair tool A is drawn into the conduit 13, and the wire 10 is pulled by a winch 19 or the like. Then, the pipe 13 is moved to the defective portion. At this time, based on the video signal from the TV camera 16 that monitors the inner wall of the pipeline, the monitor TV 15 in the work monitoring vehicle 14 on the ground detects the repaired portion of the inner wall of the pipeline to detect the winch of the inner working vehicle 18 on the ground. By instructing the towing by 7, the conduit inner wall repair tool A is towed to a predetermined conduit inner wall defective part (repair part), as in the prior invention. Since the repair of the pipe inner wall is intended for the branch pipe connecting portion, the pipe inner wall repair tool A is moved to the branch pipe connecting portion at the repaired portion by the above method. The monitor television 26 is inserted into the branch pipe 25 at the branch pipe connecting portion at the repaired portion (see a in FIG. 7). While visually observing the surface of the repair material M facing the end of the branch pipe 25 on the monitor TV 26, the motor 25 is energized to rotate the cylindrical body 1 of the repair tool A for the inner wall of the pipe line to deform the repair material M. 20 is positioned opposite to the branch pipe 25 (see a in FIG. 8). After confirming on the monitor television 26 that the deformation area 20 of the repair material M is opposed to the branch pipe 25 of the branch pipe connecting portion at the damaged portion in the pipe, the pressurizing chamber of the repair tool A for the inner wall of the pipe Feed pressurized air into E. By continuously feeding the pressurized air into the pressure chamber E, the rubber tube body 5 is inflated until it comes into pressure contact with the inner surface of the pipe line 13, and the pressurized air is further fed into the pressure chamber E, thereby branching the pipe. The rubber pipe body 5 at a position facing 25 is projected into the branch pipe 25. By the protrusion of the rubber tube 5 into the branch pipe 25, the deformed portion 20 of the repair material M is extruded into the branch pipe 25 and deformed, and the center portion of the deformed portion 20 is opened (or the central through hole 22 is enlarged). Then, the deforming portion 20 bends so that the peripheral portion of the deforming portion 20 faces the branch pipe 25 (see FIG. 7b and FIG. 8b). Further, by sending the pressurized air to the pressurizing chamber E, the amount of protrusion of the rubber tube body 5 into the branch pipe 25 increases, so that the branch pipe 25 of the deformed portion 20 of the repair material M is increased. The bending increases to the side, and finally, the deformed portion 20 of the repair material M is pressed between the rubber tube body 5 and the inner surface of the branch passage 26 and comes into close contact with the inner surface of the branch tube 25 (FIG. 8). C)). If the repair material M is hardened in this state for a certain period of time, but if the ambient temperature is low at this time, the hardening time becomes long and unstable, so the repair material M is heated by energizing the heating heater 7. Stabilize curing and shorten curing time. The temperature of the annular chamber C, the rubber tube body 5, the repair material M, etc. is measured by the temperature sensor 8, and the heating by the heating heater 7 is remotely operated via the control device B to maintain the repair material M within a predetermined temperature range. To do. When the repair material M hardens after a predetermined time elapses, the repair material M adheres to the inner wall of the conduit 13 and the branch pipe 25, and the repair work of the inner wall of the conduit for the branch pipe connecting portion according to the prior application is completed. After completion of the repair work at a predetermined repair location, the heating heater 7 is de-energized, the pressurized air in the pressurizing chamber E is released, and the rubber tube body 5 is contracted to clean the surface of the rubber tube body 5. It is detached from the inner surface of the conduit 13 so that the repair tool A for the inner wall of the conduit can be moved freely. Pull the wire with a winch or the like to move the pipeline inner wall repair tool A to the next defective location on the pipeline inner wall and continue the pipeline inner wall repair work, or pull the pipeline inner wall repair tool A to the ground for repair. Complete the work. Although the repair tool for the inner wall of the conduit is moved by the pulling wire method in the embodiment, it may be a self-propelled (robot) type of remote control. Although the connection between the repair material M for the connection portion and the repair material for the main pipe according to the prior application can be set arbitrarily, when the repair material for the connection portion M is repaired in the case of overlapping a part of the connection material, It is arbitrary whether the repair work of the pipe repair material precedes or the repair work of the repair material M for the connection portion precedes the repair work of the main pipe of the main repair material N. The first invention of the present application repairs the end portion of a branch pipe (branch pipe), and in addition to or independently of the repair of the connecting portion by the repair material M for connecting portion according to the above-mentioned prior invention. It repairs the pipe (branch pipe) connection. Referring to FIG. 1, a tubular repair case 3A that is movable in the main pipe 13 is provided, and a part of the central portion of the peripheral surface of the repair case 3A is provided with a branch pipe of a branch pipe connecting portion to be repaired. A circular opening H having a shape close to the cross section is provided. A tubular body support case 30 is provided which has a cross-sectional shape smaller than that of the opening H and the cross section of the branch pipe and is insertable into the branch pipe to be repaired by passing through the opening. FIG. 2 shows an embodiment of the second invention of the present application, in which the repair case 3A of the first invention is replaced with a tubular body of a main pipe inner wall repair tool B. The main pipe inner wall repairing tool B is wound around the outer periphery of the rubber tube body 5 by applying the conduit inner wall repairing tool A in the above-mentioned prior invention to make it movable and rotatable in the main pipe. The repair material M for the branch connection part or the repair material N for the main pipe is applied to the branch connection part or the main pipe of the pipeline main pipe 13 by applying the invention of the prior application to enable the resin coating repair. In carrying out the present invention, the pipe inner wall repairing tool B is provided with a part of the central portion of the peripheral surface of each of the tubular body (main tubular repair tubular body) 3 and the rubber tubular body (main tubular repair rubber tubular body) 5. A circular opening H having a diameter corresponding to the cross-sectional shape of the branch pipe (branch pipe) 25 is formed. With reference to FIGS. 1 to 4, C is a branch pipe inner wall repairing tool, which is a cylinder of a rubber tube body 31 whose peripheral surface can be expanded by pressurizing air and press-fitted to the inner surface of the conduit. The body 32 is provided with a structure, and has a cross-sectional shape that can be inserted into the branch pipe 25 to be repaired (in the embodiment, a circular shape having a diameter of half of the cross-section of the branch pipe 25 is used). 36 is a pressurized air hose for supplying pressurized air to the rubber tube body 31 of the second conduit inner wall repair tool C. The tubular body 32 of the branch pipe inner wall repairing tool C is supported by the tubular body support case 30, and is expanded and contracted in the longitudinal direction of the tubular body between the tubular body support case 30 and the support body 32 A integrated with the tubular body 32. The vertical expansion / contraction device E1 is installed. The sliding bodies 33 and 34 are fixed to the top surface of the tubular body 32 and the bottom surface of the tubular body 32, respectively, and the opening is formed in the repair case 3A [or the main pipe repair tubular body 3 of the main pipe inner wall repair tool B]. The guide plate 35 extending from one end of the main body to the extended position via the bottom surface of the repair case is installed in the repair case 3A [main pipe repair body 3 of the main pipe inner wall repair tool B], and the movement guide device for the branch pipe inner wall repair tool C is installed. Configure D. Referring to FIGS. 3 and 6, a horizontal expansion / contraction device E2 that expands / contracts in the horizontal direction is installed in the repair case 3A [the tubular body 3 of the main pipe inner wall repair tool B]. The horizontal expansion / contraction device E2 supports the drive shaft 40 horizontally with support plates 42, 42 fixed to the repair case 3A, and positions the electromagnetic cylinders 43, 43 in parallel with the drive shaft 40 so that the support plate 42, 42, and by supplying pressurized air or hydraulic oil to the electromagnetic cylinders 43, 43 through the hose 44 to move the magnets in the cylinders of the electromagnetic cylinders 43, 43. The driving body 44, which has a movable peripheral surface, can be driven in the horizontal direction, and the driving body 44 is fixed to the driving shaft 40 via a connecting body 45, and the driving bodies 44 are moved by the operation of the electromagnetic cylinders 43, 43. It is configured to be movable in the horizontal direction. The output end of the drive shaft 40 of the horizontal expansion / contraction device E2 is connected to the tubular body support case 30 via a link arm 46, and the horizontal expansion / contraction device E2 is connected via the pivot points P1 and P2 in the loose state. The drive shaft 40 and the cylindrical body support case 30 are connected. When the horizontal expansion / contraction device E2 is operated, the pivot point P2 is horizontally moved along the straight line trajectory W2, so that the pivot support point P1 is moved along the curved path W1 and the branch pipe inner wall repair tool C is erected by the extension operation of the horizontal expansion / contraction device E2. Let it be configured to. On the basis of the standing up due to the extension of the expansion / contraction device E, the second conduit inner wall repair tool C is guided by the movement guide device to move the second conduit inner wall repair tool B from the storage position near the horizontal inside the cylinder of the first conduit inner wall repair tool B. The inner wall repair tool C is moved to a vertical work position where most of the inner wall repair tool C is inserted into the cylinder. Next, the repair of the resin coating on the inner surface of the pipe of the branch pipe branch portion according to the present invention will be described. After the branch pipe repair material R similar to the main pipe repair material N is wound around the rubber tube body 31 of the branch pipe inner wall repair tool C, the branch pipe inner wall repair tool C is placed inside the repair case 3A [main room wall repair tool B The inside of the main pipe is moved to the branch pipe branch portion where the inner wall is to be repaired (in the position indicated by the solid line in FIG. 1 and FIG. 2) in the storage position of [in the main repair cylinder 3]. By pushing the branch pipe inner wall repair tool C into the branch pipe 25 by the expansion / contraction operation of the horizontal expansion / contraction device E2 and the guiding action of the tubular body movement guide device D, most of the branch pipe inner wall repair device C is branched. (See the schematic line position in FIGS. 1 and 2 and FIG. 3). By supplying pressurized air through the pressurized air hose 36 between the rubber tube body 31 and the tubular body 32 of the branch pipe inner wall repair tool C, the rubber tube body 31 expands. As a result, the peripheral surface of the rubber tube 31 is pressed against the inner surface of the branch tube, and the repair material R 1 wound around the peripheral surface of the second rubber tube 31 is brought into close contact with the inner surface of the branch tube (see FIG. 4). At this time, the position of the resin repaired by the repair material R can be freely selected in the longitudinal direction of the branch pipe. That is, with the branch pipe inner wall repair tool C at the position shown in FIG. 1 and FIG. 2 standing upright and most of it being inside the branch pipe, vertical expansion and contraction by supplying pressurized air and hydraulic oil from a control hose (not shown). By expanding and contracting the device E1, the tubular body 32 of the branch pipe inner wall repair device C is appropriately moved in the branch pipe longitudinal direction to select the branch pipe longitudinal direction position. FIG. 5 shows a case where the upper position is selected as compared with FIG. By heating the rubber tube body 31, the repair material R is heated, the repair material R is resin-hardened and resin-coated, and the resin coating work of the lower end portion of the branch pipe is completed. After the resin coating work is completed, the branch pipe inner wall repair tool C is repaired in the repair case 3A (in the repair cylinder 3 of the main building) by the reverse operation of FIGS. 1 and 2 by the contraction operation of the vertical expander E1 and the horizontal expander E2. The storage location of. After that, the inside of the main pipe 13 is moved to collect and move to the next repair work. In the embodiment, the branch pipe 25 is in a vertical direction with respect to the horizontal main pipe 13 and has a positional relationship orthogonal to the main pipe 13, but the branch pipe 25 is in a horizontal state or in an inclined direction. When orthogonal to the main pipe 13, the vertical expansion / contraction device E1 expands / contracts in a direction orthogonal to the main pipe 13 in a cross-sectional view of the main pipe, and therefore, in the repair case 3A (in the main building repair cylinder 3). The present invention can be applied by allowing the opening H of the above to face the lower end surface of the branch pipe. Further, since the pivot points P1 and P2 are in a loose state, the main pipe 13 and the branch pipe are also in a positional relationship such that there is an inclination angle in the front, rear, left, and right with respect to a state orthogonal to the main pipe longitudinal direction and the main pipe cross-sectional direction. The invention can be applied. In the second invention, after the resin coating work of the lower end portion of the branch pipe with the above-mentioned repair material R, or in advance, the outer circumference of the main repair rubber tube body 5 of the main pipe inner wall repair tool B. The repair material M for the connection portion wound around is applied to the resin coating repair on the main pipe 13 and the lower end of the branch pipe of the branch pipe connection by applying the invention of the prior application. In this case, it is desirable to partially overlap the repair materials M and R, but repair with the repair material R with the branch pipe inner wall repair tool C and repair with the connection part repair material M with the main tube inner wall repair tool B It is arbitrary which of the two precedes. [0029] According to the first invention of the present application, when carrying out resin repair of the branch pipe connection portion, it is possible to arbitrarily select the longitudinal position of the branch pipe with respect to the lower end portion of the branch pipe and perform the resin coating repair. Therefore, it is possible to perform accurate and complete resin coating repair. In addition to the effects of the first invention, the second invention of the present application can completely repair the resin coating on the end face of the branch pipe of the branch pipe connecting portion.

【図面の簡単な説明】【図１】本願第１考案による枝管接続部の樹脂被覆式管
路内面補修装置の大要示す本管長手方向の縦断面図。【図２】本願第２考案による枝管接続部の樹脂被覆式管
路内面補修装置の大要示す、図１同様の縦断面図。【図３】同じく枝管接続部の本管横断方向の縦断面図。【図４】枝管内壁補修具のゴム管体の膨張による、補修
材を枝管接続部の管路内壁に押圧状態における図３同様
の縦断面図。【図５】垂直伸縮装置の伸張作動状態における図４同様
の縦断面図。【図６】水平伸縮装置の平面図。【図７】先願考案による管路内壁補修状態を示す本管長
手方向の縦断面図。【図８】同じく本管横断方向の縦断面図。【図９】補修材の斜視図。【図１０】管路内壁補修具の縦断面図。【図１１】同じくエヤー供給構造を示す部分縦断面図。【図１２】同じく正面図【図１３】同じく側面図【図１４】管路内壁補修作業の説明図符号の説明Ｂ本管内壁補修具Ｃ枝管内壁補修具Ｄ移動案内装置Ｅ１垂直伸縮装置Ｅ２水平伸縮装置Ｈ開口Ｍ補修材Ｒ枝管補修材３Ａ補修ケース１３管路本管２５枝管（分岐管）３０筒体支持ケース３１ゴム管体３２筒体４６リンクアームBRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal cross-sectional view of a main pipe longitudinal direction showing an outline of a resin-coated type pipe inner surface repair device for a branch pipe connecting portion according to a first invention of the present application. FIG. 2 is a vertical cross-sectional view similar to FIG. 1, showing an outline of a resin-covered pipe inner surface repairing device for a branch pipe connecting portion according to a second invention of the present application. FIG. 3 is a vertical cross-sectional view of the branch pipe connecting portion in the transverse direction of the main pipe. FIG. 4 is a vertical cross-sectional view similar to FIG. 3 in a state where the repair material is pressed against the inner wall of the pipe line of the branch pipe connecting portion by the expansion of the rubber pipe body of the branch pipe inner wall repair tool. FIG. 5 is a vertical cross-sectional view similar to FIG. 4 in a stretching operation state of the vertical expansion and contraction device. FIG. 6 is a plan view of a horizontal expansion / contraction device. FIG. 7 is a longitudinal cross-sectional view in the longitudinal direction of the main pipe showing a state of repairing the inner wall of the pipe according to the prior application. FIG. 8 is a vertical cross-sectional view of the same in the transverse direction of the main pipe. FIG. 9 is a perspective view of a repair material. FIG. 10 is a vertical cross-sectional view of the repair tool for the inner wall of the conduit. FIG. 11 is a partial vertical cross-sectional view showing the air supply structure. [Fig. 12] Same front view [Fig. 13] Same side view [Fig. 14] Explanatory drawing of pipe inner wall repair work Reference numeral B Main pipe inner wall repair tool C Branch pipe inner wall repair tool D Movement guide device E1 Vertical expansion / contraction device E2 Horizontal expansion / contraction device H Opening M Repair material R Branch pipe repair material 3A Repair case 13 Pipe line main pipe 25 Branch pipe (branch pipe) 30 Tube support case 31 Rubber tube 32 Tube 46 Link arm

Claims

[Claims for utility model registration] [Claim 1] A rubber tube body, which is expanded by the supply of pressurized air and whose peripheral surface can be crimped to the inner surface of the conduit, is equipped on the cylinder body, and the outer peripheral surface of the rubber tube body is provided. In a resin-covered pipe inner surface repair device that coats the inner surface of the pipe with a wound resin-coated repair material to repair the inner surface of the pipe, a tubular repair case that is movable inside the main pipe is provided. A circular opening that is close to the cross section of the branch pipe of the branch pipe connection portion to be repaired is provided in a part of the central portion of the peripheral surface, and passes through the opening with a cross-sectional shape smaller than the opening and the cross section of the branch pipe. A tubular body support case that can be inserted into the branch pipe to be repaired is provided, and a tubular body equipped with a rubber tubular body is supported by the tubular body support case, and the length of the tubular body is between the tubular body support case and the tubular body. A vertical expansion device that expands and contracts in the direction is provided, and the top surface of the cylinder and the bottom surface of the cylinder are respectively The moving body is fixed, and the guide plate that extends from one end of the opening through the bottom of the repair case to the extended position inside the repair case is installed inside the repair case, and the tubular movement guide device is installed. Provided with a horizontal expansion and contraction device, the end of the horizontal expansion and contraction device and the bottom of the cylindrical support case,
The tubular body support case is connected through a link arm, and the tubular body support case and the horizontal expansion / contraction device pass through the opening from a storage position near horizontal in the repair case, and most of the tubular body support case is introduced into the branch pipe. While moving to the inserted vertical working position, at the vertical working position where most of it is inserted into the branch pipe, the vertical expansion / contraction device expands / contracts the cylindrical body and the rubber body to the longitudinal direction of the branch pipe. A device for repairing a resin-coated pipe inner surface of a branch pipe connection, characterized in that the direction position is freely changeable. 2. A rubber whose peripheral surface can be expanded by pressurizing air and pressure-bonded to the inner surface of the pipe passage. In a resin-covered pipe inner surface repair device that equips the tubular body with a tubular body, and coats the inner surface of the pipe with a resin-coated repair material that is wound around the outer peripheral surface of the rubber pipe to repair the inner surface of the pipe. The supply of A pipe inner wall repair tool that is movable in the main pipe by providing a tubular body support case that allows a tubular body equipped with a rubber tubular body that can be crimped to the inner surface of the passage to be inserted into the branch pipe of the branch pipe connection to be repaired. A circular opening that approximates the cross section of the branch pipe of the branch pipe connection to be repaired is provided in a part of the central portion of the peripheral surface of each of the main repair cylinder and the main repair rubber pipe. A tubular body support case, which has a cross-sectional shape smaller than that of the tubular cross section and can be inserted into the branch pipe to be repaired by passing through the opening, is provided, and a tubular body equipped with a rubber tubular body is supported by the tubular body support case. A vertical expansion device that expands and contracts in the longitudinal direction of the tubular body is provided between the tubular body support case and the tubular body, and sliding bodies are fixed to the top surface and the bottom surface of the tubular body, respectively. A guide plate that extends from one end of the opening to the extension position through the bottom surface of the main repair cylinder. It is installed in the main repair cylinder and is equipped with a cylinder movement guide device.It is installed in the main repair cylinder and is equipped with a horizontal expansion / contraction device that expands / contracts in the horizontal direction. The bottom portion is connected via a link arm, and most of the tubular body support case passes through the opening from the storage position near horizontal in the repair case by the tubular body movement guide device and the horizontal expansion / contraction device. Is moved to a vertical work position where it is inserted into the branch pipe, and at the work position where most of it is inserted into the branch pipe in a vertical state, the vertical expansion device expands and contracts the cylinder and the rubber body in the longitudinal direction. Branch pipe connection characterized in that the longitudinal position of the branch pipe can be changed and that the inner wall of the main pipe of the branch pipe connection is covered with a resin by the main repair rubber pipe body equipped in the main repair cylinder. Inner surface repair device for resin coated pipes