JPH08135878A - Gas bag inserting device for blocking pipe and drilling closing method and plug used in this method - Google Patents
Gas bag inserting device for blocking pipe and drilling closing method and plug used in this methodInfo
- Publication number
- JPH08135878A JPH08135878A JP6271548A JP27154894A JPH08135878A JP H08135878 A JPH08135878 A JP H08135878A JP 6271548 A JP6271548 A JP 6271548A JP 27154894 A JP27154894 A JP 27154894A JP H08135878 A JPH08135878 A JP H08135878A
- Authority
- JP
- Japan
- Prior art keywords
- gas bag
- hole saw
- pipe
- detachably attached
- saddle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガス管のような流体を
通すプラスチック管を補修のため切断したり、枝管接続
のため穿孔作業を行う際などにおいて、プラスチック管
を一時的に遮断するために使用されるガスバッグ挿入装
置と、その使用方法及びガスバッグ挿入等のため管に穿
けられた孔を塞ぐプラグに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention temporarily cuts off a plastic pipe such as a gas pipe when cutting a plastic pipe for repair or when performing a drilling operation for connecting a branch pipe. The present invention relates to a gas bag insertion device used for this purpose, a method of using the gas bag insertion device, and a plug for closing a hole formed in a tube for inserting the gas bag.
【０００２】[0002]
【従来技術】従来、例えばプラスチック製のガス管の工
事で、ガス管の一定区間を切断したり、ガス管に穿孔作
業を行うときには、工事中もガスの供給を止めないよう
に、通常は工事区間をバイパスするバイパス管を取付け
たのち、工事区間内の上流側と下流側にガスバッグを挿
入してガス管を遮断している。2. Description of the Related Art Conventionally, for example, when constructing a plastic gas pipe, when cutting a certain section of the gas pipe or performing a perforation work on the gas pipe, it is usually necessary to construct a gas pipe so that the gas supply is not stopped during the construction. After installing a bypass pipe that bypasses the section, gas bags are cut off by inserting gas bags upstream and downstream in the construction section.
【０００３】ガスバッグを挿入する装置は通常、シャッ
ター装置を備えてガス管に取着されるサドルと、サドル
に取着される穿孔装置と、穿孔装置に代えてサドルに取
着されるガスバッグ挿入用の治具とよりなり、ガスバッ
グ挿入用の治具には、ガスバッグが空気を抜いて窄めた
状態で装着されており、ガスバッグの挿入によりガス管
を遮断するときには、ガス管にサドルを取着したのち、
穿孔装置を取付け、ついでシャッターを開いてから穿孔
装置のホールソーで管に孔を穿け、穿孔後にシャッター
を閉じて穿孔装置を取外したのち、ガスバッグ挿入用の
治具を取付け、その後、シャッターを開いてガスバッグ
を管に穿けた孔から管内に挿入し、空気を送ってガスバ
ッグを膨張させてガス管の遮断を行うようになってお
り、信頼性の高い状態でガス管を遮断できるようにする
ため、或いはまたガスバッグの破裂による危険防止のた
め、ガスバッグを２個挿入できるようにしたものも知ら
れる。A device for inserting a gas bag is usually equipped with a shutter device and attached to a gas pipe, a perforation device attached to the saddle, and a gas bag attached to the saddle instead of the perforation device. The jig for inserting the gas bag is attached to the jig for inserting the gas bag in a state in which the gas bag is evacuated and closed. After installing the saddle on
Attach the punching device, then open the shutter, make a hole in the pipe with the hole saw of the punching device, close the shutter after punching and remove the punching device, then attach the jig for inserting the gas bag, then open the shutter. The gas bag is inserted into the tube through the hole formed in the tube, and air is sent to inflate the gas bag to shut off the gas tube, so that the gas tube can be shut off in a highly reliable state. In order to prevent this, or to prevent the risk of the gas bag bursting, it is known that two gas bags can be inserted.
【０００４】バイパスを取付けるときも、シャッター装
置を備えてガス管に取着されるサドルと、サドルに取着
される穿孔装置とよりなる治具が用いられ、穿孔装置に
より上記と同様管に孔を穿けたのち、シャッターを閉じ
て穿孔装置を取外し、ついで治具にバイパス管を連結す
るようにしている。Even when the bypass is installed, a jig including a saddle equipped with a shutter device and attached to a gas pipe and a perforation device attached to the saddle is used. After opening the hole, the shutter is closed to remove the punching device, and then the bypass pipe is connected to the jig.
【０００５】[0005]
【発明が解決しようとする課題】穿孔装置による穿孔は
通常、ソケットレンチを往復回動操作して円筒状のホー
ルソーの刃先を管に押し当てゝ押切りを行っているが、
この方法による問題の一つは、押切り後、ホールソーを
戻すときにソケットレンチを逆向きに往復回動操作せね
ばならず、手間がかゝることであり、別の問題は押切り
によりホールソーの刃先が変形し易いことである。また
更に別の問題は、押切りにより切取られたコアがホール
ソーに密嵌した状態となっているため、刃先を傷付けず
にコアを取出すことが容易でないことである。In the punching by the punching device, a socket wrench is normally reciprocally rotated to push the cutting edge of a cylindrical hole saw against a pipe to perform push-cutting.
One of the problems with this method is that when the hole saw is returned after pressing, the socket wrench must be reciprocally rotated in the opposite direction, which is time-consuming. It is that the blade edge of is easily deformed. Still another problem is that it is not easy to take out the core without damaging the cutting edge because the core cut out by the press cutting is in a state of being tightly fitted to the hole saw.
【０００６】本発明の第１の目的は、押切り後のホール
ソーの戻しが容易かつ迅速に行えるようなガスバッグ挿
入装置の穿孔装置を提供しようとするものであり、第２
の目的は、押切り時にホールソーの刃先が変形しにくい
穿孔装置を提供しようとするものである。更に第３の目
的は、押切り後、ホールソーに密嵌するコア状の切り屑
の除去が容易な穿孔装置を提供しようとするものであ
る。A first object of the present invention is to provide a punching device for a gas bag inserting device which allows easy and quick return of the hole saw after push-cutting.
The object of (1) is to provide a punching device in which the blade edge of the hole saw is less likely to be deformed during push cutting. A third object of the present invention is to provide a punching device that can easily remove core-shaped chips that are tightly fitted to a hole saw after pressing.
【０００７】バイパス管を取付けるときには、上述する
ように専用の治具が必要とされる。本発明の第４の目的
は、バイパス管取付け用の治具としても使用できるよう
にしたガスバッグ挿入装置を提供しようとするものであ
る。管への穿孔後は上述するように、ガスバッグが管内
に挿入されて管の遮断が行われ、工事終了後はガスバッ
グより空気を抜いて窄めた状態で管内より取出したの
ち、穿けられた孔にプラグを押込んで密嵌しているが、
ガスバッグの挿入時には、ガスバッグが管内に確実に挿
入されたかどうかを確認することができ、プラグの挿入
時には、プラグが孔に適正に嵌合しているかどうかを確
認できることが望まれる。When installing the bypass pipe, a special jig is required as described above. A fourth object of the present invention is to provide a gas bag insertion device which can be used also as a jig for attaching a bypass pipe. After perforating the pipe, the gas bag is inserted into the pipe to shut off the pipe, as described above.After the construction is completed, the air is removed from the gas bag and taken out from the pipe in a constricted state. The plug is pushed into the hole and it is tightly fitted,
At the time of inserting the gas bag, it is desired to be able to confirm whether or not the gas bag has been surely inserted into the pipe, and at the time of inserting the plug, to confirm whether or not the plug is properly fitted in the hole.
【０００８】また管に穿けられた孔を塞ぐには、シール
が確実に行えるようにすることが必要であり、シールに
際して使用されるプラグは取付後、シールが確実に維持
されると共に、管から抜け出ないように確実に固定され
ることが望まれる。したがって本発明の第５の目的は、
ガスバッグの挿入やプラグの取付けが適正に行われてい
るかどうかを容易に確認することができるようなガスバ
ッグ挿入装置を提供しようとするものであり、第６の目
的は、管に穿けられた孔を塞いで簡易かつ確実にシール
することができるような閉塞方法を提供しようとするも
のである。更に第７の目的は、管への固定が確実で、シ
ールが確実に維持できるようなプラグを提供しようとす
るものである。Further, in order to close the hole formed in the pipe, it is necessary to surely perform the sealing, and the plug used for the sealing is surely maintained after the plug is attached, It is desired that it be securely fixed so that it does not come out. Therefore, the fifth object of the present invention is to
It is an object of the present invention to provide a gas bag insertion device capable of easily confirming whether or not the gas bag is inserted and the plug is properly attached. A sixth object is to provide a gas bag insertion device. An object of the present invention is to provide a closing method capable of easily and surely sealing a hole by closing it. Further, a seventh object is to provide a plug which can be securely fixed to a pipe and can maintain a seal securely.
【０００９】[0009]
【課題の解決手段及び作用】第１の目的を達成するため
の穿孔装置は、筒状のホールソーを通すことが可能なコ
ックを備え、流体が通るプラスチック管に着脱可能に取
着されるサドル部と、該サドル部に着脱可能に取着さ
れ、かつ上記ホールソー及び手動操作によりホールソー
を昇降させることができる操作機構とを備えた穿孔装置
と、上記サドル部に着脱可能に取着され、かつ空気の供
給によって膨らみ、排出によって窄むガスバッグを装着
した一又は二個のガスバッグ挿入用の治具からなり、上
記操作機構がホールソーを備えたシャフトと一体のネジ
部に回転のみできるように螺着されるナットと、往復動
操作によりナットを一方向に間欠回動させる操作レバー
とを有するガスバッグ挿入装置において、上記操作機構
が更にシャフトに固着される手動操作部材を有すること
を特徴とする。A punching device for achieving the first object is provided with a cock through which a cylindrical hole saw can be inserted, and a saddle portion detachably attached to a plastic pipe through which a fluid flows. And a punching device detachably attached to the saddle portion and provided with the hole saw and an operating mechanism capable of raising and lowering the hole saw by a manual operation, and detachably attached to the saddle portion, and air. It is made up of one or two gas bag insertion jigs with gas bags that are inflated by the supply of gas and squeezed by the discharge, and the operation mechanism is screwed so that it can only rotate on the screw part integrated with the shaft equipped with the hole saw. In a gas bag insertion device having a mounted nut and an operating lever for intermittently rotating the nut in one direction by reciprocating operation, the operating mechanism is further fixed to the shaft. Characterized in that it has a manual operation member to be.
【００１０】本装置によれば、操作レバーを往復動操作
すると、ナットが間欠送りされ、ホールソーがネジのリ
ード（一条ネジにおいてはピッチ）の数分の１づゝ押し
進んで押切りを行う。押切り後、手動操作部材によりハ
ンドルを回転させると、一回転ごとにネジの１リード
（一条ネジにおいては１ピッチ）づゝホールソーが回転
しないで上昇する。According to this apparatus, when the operating lever is reciprocally operated, the nut is intermittently fed, and the hole saw pushes forward by a fraction of the lead of the screw (pitch in the case of single-thread screw) to perform push-cutting. When the handle is rotated by the manual operation member after pressing, the hole saw rises without rotating by one lead of the screw (1 pitch for a single-thread screw) with each rotation.
【００１１】本装置において、レバーは刻み送り機構を
介してナットを直接間欠回転させるようにしてもよい
し、ナットを歯車として構成し、刻み送り機構より歯車
伝動機構を介してナットを間欠回転させるようにしても
よい。別の装置では、手動操作部材がシャフトに螺着さ
れる。本装置においては、シャフトが降下して手動操作
部材が穿孔装置の固定部に突き当たって、それ以上の降
下が阻止された状態で手動操作部材を固定部に捩込む方
向に回動させると、シャフトが手動操作部材の一回転に
よりネジの１リード分上昇する。In the present apparatus, the lever may directly rotate the nut intermittently via the step feed mechanism, or the nut may be configured as a gear and the nut feed mechanism causes the nut to rotate intermittently via the gear transmission mechanism. You may do it. In another device, a manually operated member is screwed onto the shaft. In this device, when the shaft is lowered and the manual operation member hits the fixed portion of the punching device, and when the manual operation member is rotated in the direction in which it is screwed into the fixed portion while further lowering is prevented, the shaft is rotated. Is raised by one lead of the screw by one rotation of the manually operated member.
【００１２】第２の目的を達成するための穿孔装置は、
筒状のホールソーを通すことが可能なコックを備え、流
体が通るプラスチック管に着脱可能に取着されるサドル
部と、該サドル部に着脱可能に取着され、かつ上記ホー
ルソー及び手動操作によりホールソーを昇降させること
ができる操作機構とを備えた穿孔装置と、上記サドル部
に着脱可能に取着され、かつ空気の供給によって膨ら
み、排出によって窄むガスバッグを装着した一又は二個
のガスバッグ挿入用の治具からなるガスバッグ挿入装置
において、上記ホールソーの刃の外径を刃先に向かって
漸次縮小するように形成したことを特徴とする。A punching device for achieving the second object is
A saddle part detachably attached to a plastic pipe through which a fluid is passed, and a saddle part removably attached to the saddle part, which is equipped with a tubular hole saw through which a hole saw can be manually attached. A perforation device having an operating mechanism capable of moving up and down, and one or two gas bags equipped with a gas bag that is detachably attached to the saddle part and that swells when air is supplied and that narrows when exhausted. In a gas bag insertion device comprising an insertion jig, the outer diameter of the blade of the hole saw is gradually reduced toward the blade tip.
【００１３】第３の目的を達成するための穿孔装置は、
筒状のホールソーを通すことが可能なコックを備え、流
体が通るプラスチック管に着脱可能に取着されるサドル
部と、該サドル部に着脱可能に取着され、かつ上記ホー
ルソー及び手動操作によりホールソーを昇降させること
ができる操作機構とを備えた穿孔装置と、上記サドル部
に着脱可能に取着され、かつ空気の供給によって膨ら
み、排出によって窄むガスバッグを装着した一又は二個
のガスバッグ挿入用の治具からなるガスバッグ挿入装置
において、上記ホールソーがシャフトに取外し可能に螺
着されると共に、シャフトより取外したホールソーに捩
込まれるハンドル付きのピンよりなる治具が設けられる
ことを特徴とする。A punching device for achieving the third object is
A saddle part detachably attached to a plastic pipe through which a fluid is passed, and a saddle part removably attached to the saddle part, which is equipped with a tubular hole saw through which a hole saw can be manually attached. A perforation device having an operating mechanism capable of moving up and down, and one or two gas bags equipped with a gas bag that is detachably attached to the saddle part and that swells when air is supplied and that narrows when exhausted. In a gas bag insertion device including a jig for insertion, the hole saw is detachably screwed to a shaft, and a jig including a pin with a handle screwed into the hole saw removed from the shaft is provided. And
【００１４】本装置によれば、押切り後、ホールソーを
シャフトより取外し、ピンをホールソーに螺着して、ハ
ンドルの回動操作によりピンを捩込むと、ホールソーに
密嵌する切取られたコア状の切り層がピンにより押出さ
れる。第４の目的を達成するためのガスバッグ挿入装置
は、筒状のホールソーを通すことが可能なコックを備
え、流体が通るプラスチック管に着脱可能に取着される
サドル部と、該サドル部に着脱可能に取着され、かつ上
記ホールソー及び手動操作によりホールソーを昇降させ
ることができる操作機構とを備えた穿孔装置と、上記サ
ドル部より突設されるガスバッグ挿入管に進退可能に装
着され、空気の供給によって膨らみ、排出によって窄む
ガスバッグとからなるガスバッグ挿入装置において、ガ
スバッグ挿入管又はガスバッグ挿入管が取着されるソケ
ットを盲にするキャップ若しくは栓が設けられることを
特徴とする。According to the present device, after the push cutting, the hole saw is removed from the shaft, the pin is screwed to the hole saw, and the pin is screwed by the turning operation of the handle. The cut layer is extruded by a pin. A gas bag insertion device for achieving the fourth object is provided with a cock through which a cylindrical hole saw can be inserted, a saddle part detachably attached to a plastic pipe through which a fluid passes, and a saddle part on the saddle part. A perforating device that is detachably attached and that includes the hole saw and an operating mechanism that can raise and lower the hole saw by a manual operation, and is attached to the gas bag insertion tube protruding from the saddle portion so as to be able to move forward and backward. In a gas bag insertion device comprising a gas bag that swells when air is supplied and is narrowed when discharged, a cap or a plug for blinding a gas bag insertion pipe or a socket to which the gas bag insertion pipe is attached is provided. To do.
【００１５】本装置によれば、ガスバッグ挿入管よりガ
スバッグを取外したのち、キャップ若しくは栓でガスバ
ッグ挿入管又はガスバッグ挿入管が取着されるソケット
を盲にすることにより、バイパス管を取付けるときの治
具として使用することができる。第５の目的を達成する
ためのガスバッグ挿入装置は、筒状のホールソーを通す
ことが可能なコックを備え、流体が通るプラスチック管
に着脱可能に取着されるサドル部と、該サドル部に着脱
可能に取着され、かつ上記ホールソー及び手動操作によ
りホールソーを昇降させることができる操作機構とを備
えた穿孔装置と、上記サドル部に着脱可能に取着され、
かつ空気の供給によって膨らみ、排出によって窄むガス
バッグを装着した一又は二個のガスバッグ挿入用の治具
からなるガスバッグ挿入装置において、上記本体にバル
ブ下の管を見ることができ、覗き窓を設けたことを特徴
とする。According to the present apparatus, after the gas bag is removed from the gas bag insertion pipe, the cap or the plug is used to blind the gas bag insertion pipe or the socket to which the gas bag insertion pipe is attached, so that the bypass pipe is removed. It can be used as a jig when mounting. A gas bag inserting device for achieving the fifth object is provided with a cock through which a cylindrical hole saw can be inserted, and a saddle portion detachably attached to a plastic pipe through which a fluid passes, and a saddle portion on the saddle portion. A punching device detachably attached, and provided with the hole saw and an operating mechanism capable of raising and lowering the hole saw by a manual operation, and detachably attached to the saddle portion,
In addition, in the gas bag insertion device consisting of one or two gas bag insertion jigs equipped with gas bags that are inflated by the supply of air and narrowed by the discharge, the pipe under the valve can be seen in the main body It is characterized by having a window.
【００１６】本装置によれば、コック開閉の如何にかゝ
わらず、覗き窓より管を覗き見ることによりガスバッグ
が管内に確実に挿入されたかどうかの確認やプラグが孔
に適正に嵌合したかどうかの確認を行うことができる。
第６の目的を達成するための穿孔の閉塞方法は、管に穿
けられた孔にプラグを密嵌して塞いだのち、管への当た
り面に電熱線が埋設されるエレクトロフュージョンパッ
チサドルを用いて、プラグに被さるようにして管に当て
がい、通電して融着することによりシールを行うことを
特徴とする。According to this device, regardless of whether the cock is opened or closed, it is possible to check whether the gas bag is securely inserted into the pipe by looking into the pipe through the peep window or to properly fit the plug into the hole. You can check whether you have done it.
In order to achieve the sixth object, a method of closing a perforation is to use an electrofusion patch saddle in which a plug is tightly fitted into a hole formed in a tube to close the plug, and then a heating wire is embedded in a contact surface with the tube. Then, it is applied to the pipe so as to cover the plug, and the seal is performed by energizing and fusing.
【００１７】本方法によれば、プラグでシールしたの
ち、更にエレクトロフュージョンパッチサドルを用いて
シールすることにより簡易かつ確実に気密性が高めら
れ、またパッチサドルは高さが低く、邪魔になったり、
他工事による損傷を受けにくい。第７の目的を達成する
ためのプラグは、抜け止め用のｏリングと、シール用の
ｏリングを上下に並設したことを特徴とする。According to this method, airtightness can be easily and surely enhanced by sealing with a plug and then using an electrofusion patch saddle, and the patch saddle is low in height, which is an obstacle. ,
Less likely to be damaged by other construction. A plug for achieving the seventh object is characterized in that an o-ring for retaining and a o-ring for sealing are arranged side by side vertically.
【００１８】このプラグによれば、抜け止め用のｏリン
グが管内壁に引掛かって抜け止めとなり、シール用のｏ
リングが孔内壁に密着してシールを行う。According to this plug, the o-ring for retaining is hooked on the inner wall of the pipe to prevent retaining, and the o-ring for sealing is employed.
The ring closely adheres to the inner wall of the hole and seals.
【００１９】[0019]
【実施例】図１は、プラスチック製のガス管１の補修の
ため、或いはガス管１に枝管接続のため、補修区間Ａの
両側に管１を一時的に遮断するため、ガスバッグ挿入装
置２を取付け、更にその両外側にバイパス管３を取付け
るための治具４を取付けた例を示すもので、ガスバッグ
挿入装置２は、図２〜図４に詳細に示されるように、管
１に当てられるサドル部５と、サドル部５の三又状をな
すソケット部７ａ、７ｂ、７ｃのうち、中央部のソケッ
ト部７ｂに着脱可能に取着される筒状部６と、筒状部６
に着脱可能に取着される穿孔装置８と、サドル部５の両
側に対称形に設けられるソケット部７ａ、７ｃに着脱可
能に取着されるガスバッグ挿入用の治具とよりなり、以
下これらについて順に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a gas bag insertion device for repairing a plastic gas pipe 1 or for connecting a branch pipe to the gas pipe 1 for temporarily blocking the pipe 1 on both sides of a repair section A. 2 shows an example in which jigs 4 for attaching the bypass pipes 3 are further attached to both outer sides thereof. The gas bag inserting device 2 is configured so that the pipe 1 is attached to the pipe 1 as shown in detail in FIGS. Of the saddle part 5 to be attached to the center of the saddle part 5, and the tubular part 6 detachably attached to the socket part 7b in the center of the three-pronged socket parts 7a, 7b, 7c of the saddle part 5, and the tubular part. 6
And a jig for gas bag insertion which is detachably attached to the socket portions 7a and 7c symmetrically provided on both sides of the saddle portion 5. Will be described in order.
【００２０】サドル部５には、上述のソケット部７ａ、
７ｂ、７ｃのほか、ヒンジ１１によって開閉可能で、閉
じた状態でノブ１２の押込みによって管１をクランプす
るクランプ機構１３が図２の左右対称形に設けてあり、
対角線上には後述するチェーンが掛けられるフック１４
が突設され、更に前側に覗き窓１５、ソケット部７ｂの
後側（図３においては右側）に逃し弁１６と圧力計１７
が設けられ、前者の覗き窓１５を通して管１を覗き見る
ことができ、また後者の逃し弁１６よりガスパージ時に
ガス抜きを行うことができるようになっている。The saddle portion 5 includes the above-mentioned socket portion 7a,
In addition to 7b and 7c, a hinge 11 can be opened and closed, and a clamp mechanism 13 that clamps the pipe 1 by pushing the knob 12 in the closed state is provided in a symmetrical shape in FIG.
A hook 14 on the diagonal to which a chain to be described later can be hung
Is provided on the front side, and the escape valve 16 and the pressure gauge 17 are provided on the front side and on the rear side (right side in FIG. 3) of the socket portion 7b.
Is provided so that the pipe 1 can be seen through the peep window 15 of the former, and the gas can be vented at the time of gas purging from the relief valve 16 of the latter.
【００２１】サドル部５にはまた、管１への当たり面に
硬質ラバークッション（図示省略）が設けられ、クラン
プ機構１３のクランプにより管１に押付けられて密着
し、シールを行うようになっており、このクッション
は、管１のサイズが多少異なるものに対しても変形によ
り対応し、シール性を維持できるようになっている。筒
状部６には、上端に上記逃し弁１６と共にガスパージを
行うときに使用される吸入弁１８が設けられると共に、
その下部にコック１９がその軸線の回りに回動可能に装
着され、コック１９には筒状部６に形成された円形断面
の縦孔と同一径の円形孔が直径方向に形成してあり、コ
ックと一体の摘み２３を垂直に向けると、コックが開い
て円形孔と縦孔とが連通し、摘み２３を９０°回して水
平に向けると、コック１９が閉じて縦孔が塞がれ、摘み
２３の切替え操作によりコックの開閉が行われるように
なっている。The saddle portion 5 is also provided with a hard rubber cushion (not shown) on the contact surface against the pipe 1, and is pressed against the pipe 1 by the clamp of the clamp mechanism 13 so as to be in close contact with the pipe 1 for sealing. However, this cushion can be adapted to the one having a slightly different size of the tube 1 by deformation so that the sealing property can be maintained. The cylindrical portion 6 is provided with an intake valve 18 used at the time of performing gas purging together with the relief valve 16 at the upper end,
A cock 19 is attached to the lower part of the cock 19 so as to be rotatable about its axis, and a circular hole having the same diameter as a vertical hole having a circular cross section formed in the tubular portion 6 is formed in the cock 19 in the diametrical direction. When the knob 23 integrated with the cock is oriented vertically, the cock opens and the circular hole and the vertical hole communicate with each other. When the knob 23 is turned 90 ° and oriented horizontally, the cock 19 closes and the vertical hole is closed. The cock is opened and closed by switching the knob 23.
【００２２】穿孔装置８は図４に示されるように、上部
中央に回転のみ可能に支持される歯車状のナット９及び
この歯車状のナット９に噛合う歯車１０を備えたブラケ
ット２５と、下端に上記歯車１０を固着した操作軸２６
の上端に刻み送り機構を介して連結される操作レバー２
７と、上記ナット９に捩込まれ、ナット９の回転により
昇降する短いネジ軸２８と、ネジ軸２８の上端に捩込ま
れる筒部２９を有し、一端で操作軸２６を支持し、他端
が取手となる押えレバー３０と、上部にネジ部３１ａを
有し、ネジ軸２８とはソケット継手３２を介して連結さ
れるシャフト３１と、シャフト３１のネジ部３１ａに螺
着されるナット３３を有するハンドル３４と、シャフト
３１にスライド可能に嵌挿され、筒状部６の上端に捩込
みによって連結されるフランジ管状のキャップ３５と、
シャフト３１の下端に捩込みによって取着され、外径が
刃先に向かって漸次縮小するように形成されるホールソ
ー３６と、ブラケット２５の両側に通され、下端に連結
金具３７を固着したネジ軸３８、各ネジ軸３８の上端に
螺着され、ネジ軸３８を支持する蝶ネジ３９、ネジ軸３
８に装着され、ネジ軸３８を上昇可能に支持するコイル
バネ４１及び連結金具３７に連結されるチェーン４２と
よりなるブラケット支持具４０とよりなっている。As shown in FIG. 4, the punching device 8 includes a bracket 25 having a gear-shaped nut 9 rotatably supported in the center of the upper portion and a gear 10 meshing with the gear-shaped nut 9, and a lower end. The operation shaft 26 to which the gear 10 is fixedly attached
Lever 2 that is connected to the upper end of the through a feed mechanism
7, a short screw shaft 28 that is screwed into the nut 9 and moves up and down by the rotation of the nut 9, and a tubular portion 29 that is screwed into the upper end of the screw shaft 28. The operation shaft 26 is supported at one end and the other. A holding lever 30 whose end is a handle, a shaft 31 having a screw portion 31a at the upper portion and connected to a screw shaft 28 through a socket joint 32, and a nut 33 screwed to the screw portion 31a of the shaft 31. And a handle 35 having a flange, and a flange tubular cap 35 slidably fitted on the shaft 31 and connected to the upper end of the tubular portion 6 by screwing.
A hole saw 36, which is attached to the lower end of the shaft 31 by screwing, and whose outer diameter is gradually reduced toward the cutting edge, and a screw shaft 38 which is passed through both sides of the bracket 25 and has a connecting fitting 37 fixed to the lower end. , A thumbscrew 39 screwed to the upper end of each screw shaft 38 and supporting the screw shaft 38, the screw shaft 3
8 includes a coil spring 41 that supports the screw shaft 38 so that the screw shaft 38 can rise, and a bracket 42 that includes a chain 42 that is connected to the connecting fitting 37.
【００２３】ガスバッグ挿入用の治具は、サドル部５の
ソケット部７ａ、７ｃに捩込みによって連結されるガイ
ド筒４４と、ガイド筒４４に空気を抜いて折りたゝまれ
た状態で納められるガスバッグ（図示しない）と、ガス
バッグに連結されるチューブ４５とよりなっており、ガ
スバッグはチューブ４５を押込むことによって押出さ
れ、チューブ４５を引上げることによってガイド筒内に
納められるようになっている。The jig for inserting the gas bag is housed in a state in which the guide cylinder 44, which is connected to the socket portions 7a and 7c of the saddle portion 5 by screwing, and the guide cylinder 44, which has been deflated with air, is folded. It is composed of a gas bag (not shown) and a tube 45 connected to the gas bag. The gas bag is pushed out by pushing the tube 45, and can be stored in the guide cylinder by pulling up the tube 45. Has become.
【００２４】本装置は以上のように構成され、図１に示
すように、バイパス管３を取付けるときには、図２及び
図３に示すガスバッグ挿入装置２のソケット７ａ及び７
ｃよりガイド筒４４を取外して図５に示すように、キャ
ップ４７を取付けてソケット７ａ及び７ｃを盲にし、か
つ摘み２３を水平にしてコック１９を閉じた状態でガス
管１にサドル部５を当て、各クランプ機構１３を閉じて
ノブ１２を押込み、管１をクランプしてサドル部５を固
定する。次に同様にして別のソケット７ａ及び７ｃを盲
にしたガスバッグ挿入装置２を管１にクランプし固定す
る。その後、バイパス管３を両ガスバッグ挿入装置２に
固定して連結する。This device is constructed as described above, and when the bypass pipe 3 is mounted as shown in FIG. 1, the sockets 7a and 7 of the gas bag inserting device 2 shown in FIGS.
As shown in FIG. 5 by removing the guide cylinder 44 from c, the cap 7 is attached to make the sockets 7a and 7c blind, and with the knob 23 horizontal and the cock 19 closed, attach the saddle portion 5 to the gas pipe 1. Then, each clamp mechanism 13 is closed, the knob 12 is pushed in, the pipe 1 is clamped, and the saddle portion 5 is fixed. Next, in the same manner, the gas bag insertion device 2 in which the other sockets 7a and 7c are made blind is clamped and fixed to the tube 1. Then, the bypass pipe 3 is fixedly connected to both gas bag insertion devices 2.
【００２５】次に上記と同様のガスバッグ挿入装置２を
上記ガスバッグ挿入装置２の内側で、かつ補修区間Ａの
両側に上記と同様にしてクランプし固定したのち、空気
を抜いて折りたゝんだガスバッグを納めたガイド筒４４
をソケット部７ａ、７ｃに捩込んで連結すると共に、筒
状部６をソケット部７ｂに捩込んで連結する。ついで摘
み２３を垂直に向け、コック１９の円形孔を縦孔に合致
させた状態、すなわちコックを開けた状態で穿孔装置８
のホールソー３６から筒状部６に挿入し、ホールソー３
６を管１に当てた状態でキャップ３５を筒状部上端に捩
込み固定する。そしてブラケット２５の両側より垂れ下
がるチェーン４２の下端をサドル部５より突設されるフ
ック１４に引掛け、蝶ネジ３９を捩込んでチェーン４２
に弛みがないように長さを調節する。サドル部５とブラ
ケット２５をチェーン４２で連結するのは、ホールソー
３６による押切りの反力でシャフト３１が浮上がらない
ようにブラケット２５を支持し、押切りが確実に行える
ようにするためである。その後、ハンドル３４を回して
ナット３３をシャフト３１のネジ部３１ａ上方に引上げ
た状態にしてから、押えレバー３０を片手で掴んで固定
した状態で、別の片手により操作レバー２７を往復回動
操作する。すると、操作レバー２７の一往復により、操
作軸２６が一定量づゝ回動し、これにより操作軸下端の
歯車１０を介して歯車状のナット９が間欠回転し、該ナ
ットの一回転ごとにネジ軸２８がネジの１ピッチ分づゝ
降下する。これに伴い、ネジ軸２８と一体のソケット継
手３２、シャフト３１、ハンドル３４及びホールソー３
６が一体となって漸次降下し、ホールソー３６が管１に
押込まれて押切りを行う。Next, the same gas bag inserting device 2 as described above is clamped and fixed on the inside of the gas bag inserting device 2 and on both sides of the repair section A in the same manner as described above, and then the air is removed and folded. Guide tube 44 containing a gas bag
Is connected to the socket portions 7a and 7c by screwing, and the tubular portion 6 is connected to the socket portion 7b by screwing. Then, with the knob 23 oriented vertically, the punching device 8 with the circular hole of the cock 19 aligned with the vertical hole, that is, with the cock opened.
Insert the hole saw 36 from the
The cap 35 is screwed and fixed to the upper end of the tubular portion while the pipe 6 is in contact with the pipe 1. Then, the lower end of the chain 42 hanging from both sides of the bracket 25 is hooked on the hook 14 projecting from the saddle portion 5, and the thumbscrew 39 is screwed in to chain 42.
Adjust the length so that there is no slack. The reason that the saddle portion 5 and the bracket 25 are connected by the chain 42 is to support the bracket 25 so that the shaft 31 does not float up due to the reaction force of the push cut by the hole saw 36, and to perform the push cut surely. . Then, after turning the handle 34 to pull up the nut 33 above the threaded portion 31a of the shaft 31, the holding lever 30 is fixed with one hand, and the operating lever 27 is reciprocally rotated with another hand. To do. Then, one reciprocation of the operation lever 27 causes the operation shaft 26 to rotate by a fixed amount, which causes the gear-shaped nut 9 to intermittently rotate via the gear 10 at the lower end of the operation shaft, and each rotation of the nut rotates. The screw shaft 28 descends by one pitch of the screw. Along with this, the socket joint 32 integrated with the screw shaft 28, the shaft 31, the handle 34, and the hole saw 3
6 gradually descends as a unit, and the hole saw 36 is pushed into the pipe 1 to make a push cut.
【００２６】押切りの完了は、操作レバー２７の操作力
の軽減によって把握されるが、覗き窓１５を覗き込んで
ホールソー３６の押込み状況を見ることによっても確認
することができる。押切り完了後は、ハンドル３４を回
してナット３３をキャップ３５に押し当てた状態でハン
ドル３４を捩込む方向に回転させる。ハンドル３４はナ
ット３３がキャップ３５に当たってそれ以上の降下がで
きないような状態になっているため、ハンドル３４を捩
込む方向に回転させると、ハンドル３４の一回転ごとに
シャフト３１がネジ部３１ａの１ピッチ分づゝ上昇す
る。ホールソー３６が穿孔から抜け出したのち、チェー
ン４２をフック１４より外すと共に、ブラケット等を掴
んで穿孔装置８を持上げる。ホールソー３６が弁体１９
より抜け出すまで引上げたのち、摘み２３を９０°回し
て水平に向け、弁体１９で筒状部６の縦孔を塞いでバル
ブを閉じる。その後、キャップ３５を弛めて筒状部８よ
り外し、穿孔装置８を筒状部６より取外す。Completion of push-cutting can be grasped by reducing the operating force of the operating lever 27, but it can also be confirmed by looking into the viewing window 15 and observing the pushing state of the hole saw 36. After the completion of push-cutting, the handle 34 is rotated to rotate the handle 34 in a direction in which the nut 34 is pressed against the cap 35. The handle 34 is in a state in which the nut 33 hits the cap 35 and cannot be further lowered. Therefore, when the handle 34 is rotated in the direction in which the handle 34 is screwed, the shaft 31 causes the screw portion 31a of the screw portion 31a to rotate by one rotation. Ascends by the pitch. After the hole saw 36 comes out of the hole, the chain 42 is removed from the hook 14, and the bracket or the like is gripped to lift the hole punching device 8. Hole saw 36 is valve body 19
After pulling it up until it comes out further, the knob 23 is turned 90 ° and oriented horizontally, and the valve 19 closes the vertical hole of the tubular portion 6 to close the valve. Then, the cap 35 is loosened and removed from the tubular portion 8, and the punching device 8 is removed from the tubular portion 6.
【００２７】次にチューブ４５を押込んでガイド筒４４
内の図示省略したガスバッグを管１に穿けられた孔より
管１内に挿入する。ガスバッグの挿入は、覗き窓１５よ
り覗き見て確認することができる。一方のガスバッグが
管１内に挿入されたのち、他方のガスバッグが上記孔を
通して反対側の管内に挿入される。挿入後、チューブ４
５にポンプ（図示しない）を繋ぎ、チューブの適所に設
けたパルブを開けて圧縮空気をガスバッグに圧送し、ガ
スバッグを膨らませる。管１を遮断するまで膨らませた
のち、他方のガスバッグを同様にして膨らませる。Then, the tube 45 is pushed in to guide the guide tube 44.
A gas bag (not shown) is inserted into the tube 1 through the hole formed in the tube 1. The insertion of the gas bag can be confirmed by looking through the viewing window 15. After one gas bag is inserted into the pipe 1, the other gas bag is inserted into the opposite pipe through the hole. Tube 4 after insertion
A pump (not shown) is connected to 5 and a valve provided at an appropriate position of the tube is opened to send compressed air to the gas bag under pressure to inflate the gas bag. After inflating the tube 1 until it is blocked, the other gas bag is inflated in the same manner.
【００２８】以上のようにして補修区間Ａの両側でガス
バッグ挿入装置２によるガス管１の遮断が行われ、補修
区間Ａ内でガス管工事が次のようにして行われる。先
ず、補修部Ａを切取り、補修部Ａより若干短い新しい短
管を用いてこの短管の両側において、ガス管１と図示省
略したエレクトロフュージョン継手（プラスチック管と
の接合面に電熱線を埋設し、通電により管と融着するタ
イプの継手）によって連結する。その後、摘み２３を垂
直に向けてコック１９を開き、左右のガスバッグ挿入装
置２で二個づゝ管内に挿入されて管１を遮断するガスバ
ッグのうち、最も下流側のガスバッグ部を除く他のガス
バッグにおいて、チューブ４５にポンプの吸込側を接続
し、チューブのバルブを開いてガスバッグ内の空気を吸
い出す。そしてガスバッグを窄めて折りたゝんだ状態に
してから、チューブ４５を引上げ、ガスバッグを穿孔か
ら引出してガイド筒４４内に納める。残り二個のガスバ
ッグについても同様、ガイド筒４４内に納めると、筒内
のエアが各ガスバッグ挿入装置２のコック１９を通じて
大気中に追い出される。エアにつゞいてガスが流出し始
めると、摘み２３を水平に向けてコック１９を閉じる。
ついで最後に残った下流側のエアバッグを上記と同様に
してガイド筒４４内に納め、ガス管１を流通させる。そ
の後、図６に示すようなプラグ５１をその取付装置５２
により穿孔に圧入して取付けシールする。As described above, the gas pipe 1 is shut off by the gas bag inserting device 2 on both sides of the repair section A, and the gas pipe work is carried out in the repair section A as follows. First, the repair section A is cut off, and a new short tube slightly shorter than the repair section A is used. On both sides of this short tube, the gas pipe 1 and an electrofusion joint (not shown in the figure) , Joints that fuse with the pipe when energized). After that, the cock 23 is opened with the knob 23 oriented vertically, and two gas bag insertion devices 2 on the left and right are inserted into the tube to cut off the tube 1 except the most downstream gas bag portion. In another gas bag, the suction side of the pump is connected to the tube 45, the valve of the tube is opened, and the air in the gas bag is sucked out. Then, after the gas bag is squeezed and folded, the tube 45 is pulled up, and the gas bag is pulled out from the perforation and stored in the guide cylinder 44. Similarly, when the remaining two gas bags are housed in the guide cylinder 44, the air in the cylinder is expelled to the atmosphere through the cock 19 of each gas bag insertion device 2. When gas begins to flow out from the air, the knob 23 is oriented horizontally and the cock 19 is closed.
Then, the last remaining airbag on the downstream side is housed in the guide cylinder 44 in the same manner as above, and the gas pipe 1 is circulated. After that, the plug 51 as shown in FIG.
Then press fit into the hole and attach and seal.
【００２９】プラグ５１は樹脂製で、ｏリング５３及び
５４が上下二段に嵌め込んであり、取付装置５２のシャ
フト５５下端に捩込み又はボールプランジャーによるク
リックによって取付けられている。取付装置５２は、ヘ
ッド５５ａを備えたシャフト５５のほか、シャフト５５
が嵌挿されるキャップ５６を有しており、キャップ５６
を筒状部上端に捩込みによって固定したのち、摘み２３
を垂直に向け、プラグ５１を弁体１９に通して穿孔まで
降下させる。ついで穿孔へのプラグ５１の位置合せを覗
き窓１５を覗き込んで行ったのち、シャフト上端のヘッ
ド５５ａを金槌等で叩き込んでプラグ５１を穿孔に押込
む。プラグ５１が図７に示すように穿孔５０に適正に圧
入された状態で（これは覗き窓１５を覗き込んで確認す
ることができる）、下側のｏリング５４が管内に突出し
てプラグ５１の抜け止めを行い、かつ上側のｏリング５
３が孔内壁に密着してシールを行う。The plug 51 is made of resin, and the o-rings 53 and 54 are fitted in two steps, that is, the plug 51 is attached to the lower end of the shaft 55 of the attachment device 52 by screwing or clicking with a ball plunger. In addition to the shaft 55 having the head 55a, the mounting device 52 includes the shaft 55
Has a cap 56 into which the
After fixing to the upper end of the tubular part by screwing, the knob 23
Is oriented vertically and the plug 51 is passed through the valve body 19 and lowered to the perforation. Then, after the plug 51 is aligned with the hole by looking through the sight window 15, the head 55a at the upper end of the shaft is hit with a hammer or the like to push the plug 51 into the hole. With the plug 51 properly pressed into the perforation 50 as shown in FIG. 7 (this can be confirmed by looking through the viewing window 15), the lower o-ring 54 projects into the pipe and Prevents coming off, and the upper o-ring 5
3 closely adheres to the inner wall of the hole for sealing.
【００３０】プラグ５１の取付け完了後、取付装置５２
を筒状部６より取外し、ついで筒状部６及びガスバッグ
挿入用治具のガイド筒４４をサドル部５より取外し、更
にサドル部５をクランプ機構１３のクランプの解除によ
りガス管１より取外す。その後、図８に示すように、プ
ラグ５１が嵌合する凹部５８を備えたエレクトロフュー
ジョンパッチサドル５９を凹部内にプラグ５１が嵌合す
るようにして被せて管１に当てがい、通電によりガス管
１に融着する。After the installation of the plug 51 is completed, the installation device 52
Is removed from the tubular portion 6, then the tubular portion 6 and the guide tube 44 of the gas bag inserting jig are removed from the saddle portion 5, and the saddle portion 5 is removed from the gas pipe 1 by releasing the clamp of the clamp mechanism 13. After that, as shown in FIG. 8, an electrofusion patch saddle 59 having a recess 58 into which the plug 51 is fitted is put on the pipe 1 so that the plug 51 fits in the recess, and is applied to the pipe 1, and the gas pipe is energized. Fused to 1.
【００３１】以上のようにして管１に穿けられた孔の補
修が行われる。なお、穿孔装置８により穿孔され、ホー
ルソー３６に密嵌状態で嵌まる切り屑のコア６０は、図
９に示すように、シャフト３１より取外したホールソー
３６に、上端にハンドル６１を備えたピン６２よりなる
Ｔ形治具６３のピン６２を捩込み、ハンドル操作でピン
６２によりホールソーより押出され除去される。The hole formed in the tube 1 is repaired as described above. As shown in FIG. 9, the chip core 60 punched by the punching device 8 and fitted into the hole saw 36 in a tightly fitted state has a pin 62 having a handle 61 at the upper end of the hole saw 36 removed from the shaft 31. The pin 62 of the T-shaped jig 63 is screwed in and is pushed out from the hole saw by the pin 62 by the handle operation and removed.
【００３２】[0032]
【発明の効果】本発明は以上のように構成され、次のよ
うな効果を奏する。請求項１記載のガスバッグ挿入装置
によれば、操作レバーの往復動操作により、ホールソー
がネジのリードの数分の１づゝ押し進んで、比較的軽い
力により押し切りを確実に行うことができ、また押切り
後、ホールソーを戻すときには、手動操作部材でシャフ
トを回転させることにより、ホールソーが回転しなが
ら、一回転でネジの１リード分づゝ上昇し、したがって
ホールソーが螺旋状に上昇して、戻しが容易かつ迅速に
行えるようになる。The present invention is configured as described above and has the following effects. According to the gas bag inserting device of the first aspect, the hole saw pushes forward by a fraction of the lead of the screw by the reciprocating operation of the operation lever, and the push-cut can be surely performed by a relatively light force. In addition, when returning the hole saw after pushing, the shaft is rotated by the manual operation member so that the hole saw rotates and the screw moves up by one lead by one rotation. Therefore, the hole saw rises spirally. The return will be easy and quick.
【００３３】請求項２記載のガスバッグ挿入装置におい
ては、手動操作部材を回転させることにより、シャフト
がホールソーと共に回転しないで、手動操作部材の一回
転によりネジの１リード分づゝ上昇する。請求項３記載
のガスバッグ挿入装置においては、押切り時におけるホ
ールソーの刃先の変形が生じにくい。In the gas bag inserting apparatus according to the second aspect, the shaft is not rotated together with the hole saw by rotating the manually operated member, and the screw is lifted by one lead by one rotation of the manually operated member. In the gas bag insertion device according to the third aspect, the blade edge of the hole saw is unlikely to be deformed during the push cutting.
【００３４】請求項４記載の装置におけるような治具を
用いれば、押切りによりホールソーに密嵌状態で嵌合す
る切り屑のコアを刃先を傷めずに容易かつ確実に押出し
て除去することができる。請求項５記載のガスバッグ挿
入装置によれば、ガスバッグ挿入装置をバイパス取付用
の治具としても用いることができる。By using the jig as in the apparatus according to the fourth aspect, it is possible to easily and surely extrude and remove the core of the chips that are tightly fitted to the hole saw by the push cut without damaging the cutting edge. it can. According to the gas bag insertion device of the fifth aspect, the gas bag insertion device can be used as a jig for bypass mounting.
【００３５】請求項６記載の装置のように、コック下の
穿孔箇所を覗き見ることができる覗き窓を設ければ、コ
ックが閉じた状態にあっても、ガスバッグの挿入やプラ
グの適正な嵌合を目で見て確認することができる。請求
項７記載の穿孔の閉塞方法によれば、プラグとパッチサ
ドルにより気密性が確実に保たれ、しかもパッチサドル
は高さが低いので、他の作業の邪魔となったり、損傷を
受けにくゝ、しかもエレクトロフュージョンパッチサド
ルであるため、その取付けが容易かつ確実に行えるよう
になる。As in the apparatus according to the sixth aspect, by providing a peep window through which the perforated portion under the cock can be seen, even when the cock is closed, the gas bag is properly inserted and the plug is properly inserted. The fit can be visually confirmed. According to the hole closing method of claim 7, since the airtightness is surely maintained by the plug and the patch saddle, and the height of the patch saddle is low, it does not interfere with other work and is not easily damaged. Since it is an electrofusion patch saddle, it can be easily and surely attached.
【００３６】請求項８記載のプラグによれば、管からの
抜け止めと共に、シールが確実に行えるようになる。According to the plug of the eighth aspect, it is possible to prevent the pipe from coming off and to reliably perform sealing.
【図１】 ガス管にバイパス管を取付けた状態を示す概
略図。FIG. 1 is a schematic view showing a state in which a bypass pipe is attached to a gas pipe.
【図２】 ガス管に取り付けたガスバッグ挿入装置の正
面図。FIG. 2 is a front view of a gas bag insertion device attached to a gas pipe.
【図３】 同装置の要部の側面図。FIG. 3 is a side view of a main part of the apparatus.
【図４】 穿孔装置の部分断面正面図。FIG. 4 is a partial cross-sectional front view of the punching device.
【図５】 バイパス管取付用治具として使用したガスバ
ッグ挿入装置の正面図。FIG. 5 is a front view of a gas bag insertion device used as a bypass pipe mounting jig.
【図６】 プラグ取付装置の部分断面正面図。FIG. 6 is a partial sectional front view of the plug attaching device.
【図７】 プラグの取付状態を示す断面図。FIG. 7 is a sectional view showing a mounting state of the plug.
【図８】 パッチサドルを取付けたときの断面図。FIG. 8 is a cross-sectional view when a patch saddle is attached.
【図９】 ホールソーに密嵌するコア状の切屑を除去す
るときの断面図。FIG. 9 is a cross-sectional view when removing core-shaped chips that are tightly fitted to a hole saw.
１・・ガス管 ２・・ガスバッグ挿入
装置 ３・・バイパス管 ４・・治具 ５・・サドル部 ６・・筒状部 ７ａ、７ｂ、７ｃ・・ソケット部 ８・・穿孔装置 ９・・ナット １３・・クランプ機構 １５・・覗き窓 １９・・コック ２３・・摘み ２５・・ブラケット ２７・・操作レバー ２８・・ネジ軸 ３０・・押えレバー ３１・・シャフト ３３・・ナット ３４・・ハンドル ３５・・キャップ ３６・・ホールソー ４２・・チェーン ４４・・ガイド筒 ４５・・チューブ ４７・・キャップ ５１・・プラグ ５２・・取付装置 ５５・・シャフト ５６・・キャップ ６１・・ハンドル ６２・・ピン ６３・・Ｔ形治具1 ・ ・ Gas pipe 2 ・ ・ Gas bag insertion device 3 ・ ・ Bypass pipe 4 ・ ・ Jig 5 ・ ・ Saddle part 6 ・ ・ Cylindrical part 7a, 7b, 7c ・ ・ Socket part 8 ・ ・ Punching device 9 ・ ・Nut 13 Clamping mechanism 15 Peephole 19 Cock 23 Pick 25 Bracket 27 Operating lever 28 Screw shaft 30 Holding lever 31 Shaft 33 Nut 34 Handle 35 ・ ・ Cap 36 ・ ・ Hole saw 42 ・ ・ Chain 44 ・ ・ Guide tube 45 ・ ・ Tube 47 ・ ・ Cap 51 ・ ・ Plug 52 ・ ・ Mounting device 55 ・ ・ Shaft 56 ・ ・ Cap 61 ・ ・ Handle 62 ・ ・ Pin 63 ... T type jig
Claims (8)
ックを備え、流体が通るプラスチック管に着脱可能に取
着されるサドル部と、該サドル部に着脱可能に取着さ
れ、かつ上記ホールソー及び手動操作によりホールソー
を昇降させることができる操作機構とを備えた穿孔装置
と、上記サドル部に着脱可能に取着され、かつ空気の供
給によって膨らみ、排出によって窄むガスバッグを装着
した一又は二個のガスバッグ挿入用の治具からなり、上
記操作機構がホールソーを備えたシャフトと一体のネジ
部に回転のみできるように螺着されるナットと、往復動
操作によりナットを一方向に間欠回動させる操作レバー
とを有するガスバッグ挿入装置において、上記操作機構
が更にシャフトに固着される手動操作部材を有すること
を特徴とする管遮断用のガスバッグ挿入装置。1. A saddle part detachably attached to a plastic pipe through which a fluid is provided, comprising a cock through which a cylindrical hole saw can be inserted, and the hole saw detachably attached to the saddle part. And a punching device having an operating mechanism capable of raising and lowering the hole saw by manual operation, and a gas bag detachably attached to the saddle portion, swelled by air supply, and constricted by discharge, or A nut that consists of two gas bag insertion jigs, and the operating mechanism is screwed so that it can only rotate on the screw part that is integral with the shaft equipped with a hole saw, and the nut is intermittently moved in one direction by reciprocating operation. In a gas bag inserting device having a rotating operation lever, the operation mechanism further includes a manual operation member fixed to a shaft for pipe shutoff. Gas bag insertion device.
わりに螺着される請求項１記載の管遮断用のガスバッグ
挿入装置。2. The gas bag inserting device for tube shutoff according to claim 1, wherein the manual operation member is screwed instead of being fixed to the shaft.
ックを備え、流体が通るプラスチック管に着脱可能に取
着されるサドル部と、該サドル部に着脱可能に取着さ
れ、かつ上記ホールソー及び手動操作によりホールソー
を昇降させることができる操作機構とを備えた穿孔装置
と、上記サドル部に着脱可能に取着され、かつ空気の供
給によって膨らみ、排出によって窄むガスバッグを装着
した一又は二個のガスバッグ挿入用の治具からなるガス
バッグ挿入装置において、上記ホールソーの刃の外径を
刃先に向かって漸次縮小するように形成したことを特徴
とする管遮断用のガスバッグ挿入装置。3. A saddle part detachably attached to a plastic pipe through which a fluid is provided, which comprises a cock through which a cylindrical hole saw can pass, and the hole saw detachably attached to the saddle part. And a punching device having an operating mechanism capable of raising and lowering the hole saw by manual operation, and a gas bag detachably attached to the saddle portion, swelled by air supply, and constricted by discharge, or A gas bag inserting device comprising two jigs for inserting a gas bag, characterized in that the outer diameter of the blade of the hole saw is gradually reduced toward the blade edge, and the gas bag inserting device for pipe shutoff is characterized. .
ックを備え、流体が通るプラスチック管に着脱可能に取
着されるサドル部と、該サドル部に着脱可能に取着さ
れ、かつ上記ホールソー及び手動操作によりホールソー
を昇降させることができる操作機構とを備えた穿孔装置
と、上記サドル部に着脱可能に取着され、かつ空気の供
給によって膨らみ、排出によって窄むガスバッグを装着
した一又は二個のガスバッグ挿入用の治具からなるガス
バッグ挿入装置において、上記ホールソーがシャフトに
取外し可能に螺着されると共に、シャフトより取外した
ホールソーに捩込まれるハンドル付きのピンよりなる治
具が設けられることを特徴とする管遮断用のガスバッグ
挿入装置。4. A saddle portion detachably attached to a plastic pipe through which a fluid passes, comprising a cock through which a cylindrical hole saw can be inserted, and the hole saw detachably attached to the saddle portion. And a punching device having an operating mechanism capable of raising and lowering the hole saw by manual operation, and a gas bag detachably attached to the saddle portion, swelled by air supply, and constricted by discharge, or In a gas bag insertion device consisting of two jigs for inserting a gas bag, a jig consisting of a pin with a handle that is screwed to the shaft so that the hole saw is detachably attached and that is screwed into the hole saw removed from the shaft. A gas bag insertion device for pipe cutoff, which is provided.
ックを備え、流体が通るプラスチック管に着脱可能に取
着されるサドル部と、該サドル部に着脱可能に取着さ
れ、かつ上記ホールソー及び手動操作によりホールソー
を昇降させることができる操作機構とを備えた穿孔装置
と、上記サドル部より突設されるガスバッグ挿入管に進
退可能に装着され、空気の供給によって膨らみ、排出に
よって窄むガスバッグとからなるガスバッグ挿入装置に
おいて、ガスバッグ挿入管又はガスバッグ挿入管が取着
されるソケットを盲にするキャップ若しくは栓が設けら
れることを特徴とする管遮断用のガスバッグ挿入装置。5. A saddle part detachably attached to a plastic pipe through which a fluid passes, comprising a cock capable of passing a cylindrical hole saw, and the hole saw detachably attached to the saddle part. And a punching device having an operating mechanism capable of raising and lowering the hole saw by manual operation, and a gas bag insertion tube projecting from the saddle part so as to be able to move forward and backward, swelled by air supply, and narrowed by discharge A gas bag insertion device comprising a gas bag, wherein a cap or a plug for blinding a gas bag insertion pipe or a socket to which the gas bag insertion pipe is attached is provided.
ックを備え、流体が通るプラスチック管に着脱可能に取
着されるサドル部と、該サドル部に着脱可能に取着さ
れ、かつ上記ホールソー及び手動操作によりホールソー
を昇降させることができる操作機構とを備えた穿孔装置
と、上記サドル部に着脱可能に取着され、かつ空気の供
給によって膨らみ、排出によって窄むガスバッグを装着
した一又は二個のガスバッグ挿入用の治具からなるガス
バッグ挿入装置において、上記本体にバルブ下の管を見
ることができ、覗き窓を設けたことを特徴とする管遮断
用のガスバッグ挿入装置。6. A saddle part detachably attached to a plastic pipe through which a fluid is provided, comprising a cock capable of passing a cylindrical hole saw, and the hole saw detachably attached to the saddle part. And a punching device having an operating mechanism capable of raising and lowering the hole saw by manual operation, and a gas bag detachably attached to the saddle portion, swelled by air supply, and constricted by discharge, or In a gas bag insertion device comprising two gas bag insertion jigs, a pipe below the valve can be seen in the main body, and a viewing window is provided, which is a gas bag insertion device for pipe disconnection.
いだのち、管への当たり面に電熱線が埋設されるエレク
トロフュージョンパッチサドルを用いて、プラグに被さ
るようにして管に当てがい、通電して融着することによ
りシールを行うことを特徴とする管に穿けられた孔を塞
ぐ閉塞方法。7. An electrofusion patch saddle in which a plug is tightly fitted and closed in a hole formed in a pipe and a heating wire is embedded in a contact surface of the pipe so that the plug is covered with the electrofusion patch saddle. A method for closing a hole formed in a pipe, which comprises sealing by applying and energizing to fuse.
ラグにおいて、抜け止め用のｏリングと、シール用のｏ
リングを上下に並設したことを特徴とするプラグ。8. The plug used in the closing method according to claim 7, wherein an o-ring for retaining and an o-ring for sealing are used.
A plug characterized by arranging rings vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6271548A JPH08135878A (en) | 1994-11-04 | 1994-11-04 | Gas bag inserting device for blocking pipe and drilling closing method and plug used in this method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6271548A JPH08135878A (en) | 1994-11-04 | 1994-11-04 | Gas bag inserting device for blocking pipe and drilling closing method and plug used in this method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08135878A true JPH08135878A (en) | 1996-05-31 |
Family
ID=17501605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6271548A Pending JPH08135878A (en) | 1994-11-04 | 1994-11-04 | Gas bag inserting device for blocking pipe and drilling closing method and plug used in this method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08135878A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008180373A (en) * | 2006-12-28 | 2008-08-07 | Sekisui Chem Co Ltd | Branch joint |
| KR101935536B1 (en) * | 2018-05-29 | 2019-04-05 | 서중교 | Sealing member auto fitting appartus of mold cooling water passage |
| KR20220002851U (en) * | 2021-05-26 | 2022-12-05 | 동화산업 주식회사 | Clanmping apparatus for preventing the fluid leakage from plugging machine for stopping fluid flowing in gas pipe |
-
1994
- 1994-11-04 JP JP6271548A patent/JPH08135878A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008180373A (en) * | 2006-12-28 | 2008-08-07 | Sekisui Chem Co Ltd | Branch joint |
| KR101935536B1 (en) * | 2018-05-29 | 2019-04-05 | 서중교 | Sealing member auto fitting appartus of mold cooling water passage |
| KR20220002851U (en) * | 2021-05-26 | 2022-12-05 | 동화산업 주식회사 | Clanmping apparatus for preventing the fluid leakage from plugging machine for stopping fluid flowing in gas pipe |
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