JP5766410B2

JP5766410B2 - Core fitting device and method for fitting the same

Info

Publication number: JP5766410B2
Application number: JP2010133354A
Authority: JP
Inventors: 謙介中里
Original assignee: Cosmo Koki Co Ltd
Current assignee: Cosmo Koki Co Ltd
Priority date: 2010-06-10
Filing date: 2010-06-10
Publication date: 2015-08-19
Anticipated expiration: 2030-06-10
Also published as: JP2011256970A

Description

本発明は、流体管に穿設される穿孔に連通し流体管の外周を密封状に被覆したケースと、ケース内にて非上昇の回転ネジに取り付けられ、回転ネジの回転により穿孔に向けて操作される操作体と、操作体に取り外し可能に取り付けられ、穿孔に嵌設される略筒状体のコアと、を備えたコア嵌設装置及びその嵌設方法に関する。 The present invention is a case in which the outer periphery of a fluid pipe is sealed and connected to a perforation formed in a fluid pipe, and is attached to a non-raising rotary screw in the case. The present invention relates to a core fitting device including an operating body to be operated, a substantially cylindrical core that is detachably attached to the operating body and is fitted in a perforation, and a fitting method thereof.

従来のコア嵌設装置は、流体管の外周を密封したケース内にて管壁に穿孔を穿設し、ケースに接続した取付手段を配設するとともに、この取付手段を用いて筒状体から成るコアを拡径させることで穿孔に嵌設している（例えば、特許文献１参照）。 A conventional core fitting device has a perforation formed in a pipe wall in a case where the outer periphery of a fluid pipe is sealed, and an attachment means connected to the case is disposed. The core to be formed is fitted into the perforation by expanding the diameter (for example, see Patent Document 1).

特開２００４−６８９２０号公報（第１０頁、第７図）Japanese Unexamined Patent Publication No. 2004-68920 (page 10, FIG. 7)

しかしながら、特許文献１にあっては、コアを穿孔に嵌設させるためにコアを拡径させる際には、例えば、コアを拡径させるブッシュ等の特別な構成を用いる必要があるという問題がある。 However, in Patent Document 1, there is a problem that when the core is expanded to fit the core into the perforation, for example, a special configuration such as a bush for expanding the core needs to be used. .

本発明は、このような問題点に着目してなされたもので、コアを拡径させる特別な構成を必要とせずとも容易に穿孔へのコアの嵌設を行うことができるコア嵌設装置及びその嵌設方法を提供することを目的とする。 The present invention has been made paying attention to such problems, and a core fitting device capable of easily fitting a core into a perforation without requiring a special configuration for expanding the diameter of the core, and It aims at providing the fitting method.

前記課題を解決するために、本発明のコア嵌設装置は、
流体管に穿設される穿孔に連通し該流体管の外周を密封状に被覆したケースと、該ケース内にて非上昇の回転ネジに取り付けられ、該回転ネジの回転により前記穿孔に向けて回転が規制された状態で操作される操作体と、該操作体に取り外し可能に取り付けられ、前記穿孔に嵌設される略筒状体のコアと、を備えたコア嵌設装置であって、
前記コアの前記流体管の内部に配置される先端部は、前記穿孔の曲面形状に沿うように、前記流体管の内周面と略同じ曲率の曲面形状の先端面を有する鍔部に形成されており、前記操作体の外周面に取り付けられた前記コアは、前記先端部の前記鍔部を縮径変形させつつ前記穿孔内に挿入され、前記穿孔を通過した前記鍔部が前記流体管の内部において弾性復元し前記流体管の内周面に係合することで、前記穿孔に嵌設され、前記操作体が前記穿孔から離間するときに、前記コアは該穿孔に嵌設された状態のまま前記操作体から取り外されることを特徴としている。
この特徴によれば、穿孔の曲面形状に沿うように、流体管の内周面と略同じ曲率の曲面形状の先端面を有する鍔部に形成されているので、穿孔に挿入されるコアの先端部の鍔部が縮径変形すると、コアは容易に変形し、コアを穿孔に容易に挿入することができ、穿孔を通過した鍔部が流体管の内部において弾性復元し流体管の内周面に係合して、コアを拡径させる等の特別な手段を要さずとも、コアを穿孔に対して容易に嵌設し、離間させることができる。 In order to solve the above problems, the core fitting device of the present invention is:
A case that is connected to a perforation formed in the fluid pipe and that has an outer periphery of the fluid pipe covered in a hermetically sealed manner, and is attached to a non-raising rotary screw in the case, and the rotation screw rotates toward the perforation. A core fitting device comprising: an operating body that is operated in a state in which rotation is restricted ; and a substantially cylindrical core that is removably attached to the operating body and is fitted into the perforation,
The tip portion of the core disposed inside the fluid pipe is formed in a flange portion having a curved tip surface having substantially the same curvature as the inner peripheral surface of the fluid pipe so as to follow the curved shape of the perforation. and has the core which is attached to the outer peripheral surface of the front SL operating body is inserted into the flange portion in the borehole while shrink-deformed with the tip, the collar portion is the fluid tube which has passed through the perforations The core is fitted into the perforation when the operating body is separated from the perforation by being elastically restored inside and engaging with the inner peripheral surface of the fluid pipe. It is characterized in that it is removed from the operating body as it is.
According to this feature, the tip of the core inserted into the perforation is formed on the collar portion having a curved end surface having the same curvature as the inner peripheral surface of the fluid pipe so as to follow the curved shape of the perforation. When the flange part of the part is reduced in diameter, the core is easily deformed, and the core can be easily inserted into the perforation. The collar part that has passed through the perforation is elastically restored inside the fluid pipe, and the inner peripheral surface of the fluid pipe The core can be easily fitted and separated with respect to the perforation without requiring special means such as engaging the core and expanding the diameter of the core.

本発明のコア嵌設装置は、
前記コアは、前記穿孔の略全内周面に亘り当接する防食部材を備えていることを特徴としている。
この特徴によれば、コアの防食部材を穿孔の略全内周面に亘り当接させることで、穿孔の防食を確実にできる。 The core fitting device of the present invention is
The core includes an anticorrosion member that abuts over substantially the entire inner peripheral surface of the perforation.
According to this feature, the anticorrosion member of the core can be surely prevented by making the core anticorrosive member abut over substantially the entire inner peripheral surface of the perforation.

本発明のコア嵌設装置は、
前記コアは、前記穿孔よりも大径の後端部を備えていることを特徴としている。
この特徴によれば、コアの後端部を穿孔近傍の流体管外面に当接させることで、コアの過挿入を防止できる。 The core fitting device of the present invention is
The core includes a rear end portion having a diameter larger than that of the perforations.
According to this feature, excessive insertion of the core can be prevented by bringing the rear end of the core into contact with the outer surface of the fluid pipe near the perforation.

本発明のコア嵌設装置は、
前記流体管の流路を遮断若しくは開放可能な弁体が、前記回転ネジあるいはケースに取付け可能であることを特徴としている。
この特徴によれば、コアの穿孔への嵌設と流体管の流路の遮断若しくは開放とで操作体と弁体以外の構成を共有して使用するので、流体管の流路の遮断若しくは開放を個別の構成を用いずとも安価に行うことができる。 The core fitting device of the present invention is
Flow path blocking or openable valve body before Symbol fluid tube, it is characterized in that it is attachable to the rotating screw or case.
According to this feature, since the configuration other than the operating body and the valve body is shared between the fitting of the core in the perforation and the shutoff or opening of the fluid pipe flow path, the fluid pipe flow path is shut off or opened. Can be performed at low cost without using a separate configuration.

本発明のコア嵌設方法は、
流体管に穿設される穿孔に連通し該流体管の外周を密封状に被覆したケースと、該ケース内にて非上昇の回転ネジに取り付けられ、該回転ネジの回転により前記穿孔に向けて回転が規制された状態で操作される操作体と、該操作体に取り外し可能に取り付けられ、前記穿孔に嵌設される略筒状体のコアと、を用いるコア嵌設方法であって、
前記コアの前記流体管の内部に配置される先端部は、前記穿孔の曲面形状に沿うように、前記流体管の内周面と略同じ曲率の曲面形状の先端面を有する鍔部に形成されており、前記操作体の外周面に取り付けられた前記コアは、前記先端部の前記鍔部を縮径変形させつつ前記穿孔内に挿入され、前記穿孔を通過した前記鍔部が前記流体管の内部において弾性復元し前記流体管の内周面に係合することで、前記穿孔に嵌設され、前記操作体が前記穿孔から離間するときに、前記コアは該穿孔に嵌設された状態のまま前記操作体から取り外されることを特徴としている。
この特徴によれば、穿孔の曲面形状に沿うように、流体管の内周面と略同じ曲率の曲面形状の先端面を有する鍔部に形成されているので、穿孔に挿入されるコアの先端部の鍔部が縮径変形すると、コアは容易に変形し、コアを穿孔に容易に挿入することができ、穿孔を通過した鍔部が流体管の内部において弾性復元し流体管の内周面に係合して、コアを拡径させる等の特別な手段を要さずとも、コアを穿孔に対して容易に嵌設させることができる。また、コアを穿孔に対して嵌設させた後は、操作体を穿孔から離間させる際に、鍔部が穿孔近傍の流体管の内面に係止することで、コアの穿孔への嵌設を保ったまま確実に操作体だけを穿孔から離間させることができる。 The core fitting method of the present invention is
A case that is connected to a perforation formed in the fluid pipe and that has an outer periphery of the fluid pipe covered in a hermetically sealed manner, and is attached to a non-raising rotary screw in the case, and the rotation screw rotates toward the perforation. A core fitting method using an operating body that is operated in a state where rotation is restricted , and a substantially cylindrical core that is removably attached to the operating body and is fitted into the perforation,
The tip portion of the core disposed inside the fluid pipe is formed in a flange portion having a curved tip surface having substantially the same curvature as the inner peripheral surface of the fluid pipe so as to follow the curved shape of the perforation. and has the core which is attached to the outer peripheral surface of the front SL operating body is inserted into the flange portion in the borehole while shrink-deformed with the tip, the collar portion is the fluid tube which has passed through the perforations The core is fitted into the perforation when the operating body is separated from the perforation by being elastically restored inside and engaging with the inner peripheral surface of the fluid pipe. It is characterized in that it is removed from the operating body as it is.
According to this feature, the tip of the core inserted into the perforation is formed on the collar portion having a curved end surface having the same curvature as the inner peripheral surface of the fluid pipe so as to follow the curved shape of the perforation. When the flange part of the part is reduced in diameter, the core is easily deformed, and the core can be easily inserted into the perforation. The collar part that has passed through the perforation is elastically restored inside the fluid pipe, and the inner peripheral surface of the fluid pipe The core can be easily fitted to the perforation without requiring any special means such as engaging the core and expanding the diameter of the core. In addition, after the core is fitted to the perforation, when the operating body is separated from the perforation, the hook is locked to the inner surface of the fluid pipe near the perforation so that the core can be fitted to the perforation. Only the operating body can be reliably separated from the perforation while being maintained.

実施例におけるコアを嵌設する流体管を穿設している状態を示す一部断面図である。It is a partial cross section figure which shows the state which has drilled the fluid pipe | tube which inserts the core in an Example. 操作体にコアを取り付けた状態を示す一部断面の正面図である。It is a front view of the partial cross section which shows the state which attached the core to the operation body. 図２と同じく一部断面の側面図である。It is a side view of a partial cross section like FIG. （ａ）はコアの一部断面の側面図であり、（ｂ）はコアの一部断面の正面図であり、（ｃ）はコアの平面図である。(A) is a side view of a partial cross section of the core, (b) is a front view of a partial cross section of the core, and (c) is a plan view of the core. 回転操作部にハンドルを取り付けた状態を示す一部断面の正面図である。It is a front view of the partial cross section which shows the state which attached the handle | steering-wheel to the rotation operation part. 操作体が穿孔に挿入された状態を示す一部断面の正面図である。It is a front view of the partial cross section which shows the state by which the operation body was inserted in the piercing | piercing. 図６と同じく側面断面図である。It is side surface sectional drawing similarly to FIG. 操作体が穿孔から離間された状態を示す一部断面の正面図である。It is a front view of the partial cross section which shows the state from which the operating body was spaced apart from the piercing | piercing. 弁蓋が引き上げられる状態を示す一部断面の正面図である。It is a front view of the partial cross section which shows the state by which a valve lid is pulled up. 操作体に替えて弁体が取り付けられた状態を示す一部断面の正面図である。It is a front view of the partial cross section which shows the state to which the valve body was attached instead of the operation body. 弁体が取り付けられた弁蓋を分岐管に配置した状態を示す一部断面の側面図である。It is a side view of the partial cross section which shows the state which has arrange | positioned the valve lid to which the valve body was attached to the branch pipe.

本発明に係るコア嵌設装置及びその嵌設方法を実施するための形態を実施例に基づいて以下に説明する。 EMBODIMENT OF THE INVENTION The form for implementing the core fitting apparatus which concerns on this invention, and its fitting method is demonstrated below based on an Example.

実施例に係るコア嵌設装置及びその嵌設方法につき、図１から図１１を参照して説明する。図２，３に示されるように、本発明のコア嵌設装置１０は、主として、内部を上水が流れる流体管１の上部に穿設される穿孔Ｑに連通し流体管１の外周を水密に被覆したケース２と、回転ネジ４の回転によりケース２内にて上下動、すなわち回転ネジ４の軸方向に取り付けられるとともに操作される操作体５と、後述のように穿孔Ｑに嵌設され内部を介し操作体５を挿入可能な略筒状体のコア４０とを有している。 The core fitting device and the fitting method according to the embodiment will be described with reference to FIGS. As shown in FIGS. 2 and 3, the core fitting device 10 of the present invention mainly communicates with the perforation Q formed in the upper part of the fluid pipe 1 through which the clean water flows, and the outer periphery of the fluid pipe 1 is watertight. , A case 2 that moves up and down in the case 2 by the rotation of the rotating screw 4, that is, an operating body 5 that is attached and operated in the axial direction of the rotating screw 4, and is fitted in the perforation Q as described later. And a substantially cylindrical core 40 into which the operation body 5 can be inserted.

本実施例の流体管１は、断面視略円形状に形成された金属製管から成り、内周面がモルタル層で被覆されている。尚、流体管１の内周面はモルタル層に限らず、例えばエポキシ樹脂等により被覆されてもよく、若しくは適宜の材料を粉体塗装により流体管の内周面に被覆してもよい。また、本実施例では流体管１内の流体は上水であるが、流体管の内部を流れる流体は必ずしも上水に限らず、例えば工業用水であってもよいし、また気体や気液混合状態の流体が流れる流体管であっても構わない。 The fluid pipe 1 of the present embodiment is made of a metal pipe formed in a substantially circular shape in cross section, and the inner peripheral surface is covered with a mortar layer. The inner peripheral surface of the fluid pipe 1 is not limited to the mortar layer, and may be coated with, for example, an epoxy resin or the like, or an appropriate material may be coated on the inner peripheral surface of the fluid pipe with powder coating. Further, in the present embodiment, the fluid in the fluid pipe 1 is clean water, but the fluid flowing in the fluid pipe is not necessarily limited to clean water, and may be industrial water, for example, or a gas or gas-liquid mixture It may be a fluid pipe through which a fluid in a state flows.

流体管１の外周面に固定に取り付けられるケース２は、いわゆる割Ｔ字管であって、流体管１の管軸と略直交する上下方向の内空部を備えた分岐管１２及び弁蓋３と、流体管１の外周の下側を被覆するカバー１１と、からなる。 The case 2 fixedly attached to the outer peripheral surface of the fluid pipe 1 is a so-called split T-shaped pipe, and includes a branch pipe 12 and a valve lid 3 having an inner space in the vertical direction substantially orthogonal to the pipe axis of the fluid pipe 1. And a cover 11 covering the lower side of the outer periphery of the fluid pipe 1.

図１に示されるように、先ず分岐管１２とカバー１１とを、流体管１を挟む位置で対向させ、流体管１の長手方向に沿って配置された複数のボルト・ナット１３により締結する。ここで、後述する穿設により流体管１内からの溢水が生じないよう、穿孔Ｑの外周に沿ったゴムリング２２が、分岐管１２の内面と流体管１の外面との間に介設されている。そして、流体管１にカバー１１、分岐管１２を取り付けた後に、分岐管１２内に水圧を加えることで、流体管１の外面と分岐管１２の内面との間隙の水密性を適宜確認してもよい。 As shown in FIG. 1, first, the branch pipe 12 and the cover 11 are opposed to each other at a position sandwiching the fluid pipe 1 and fastened by a plurality of bolts and nuts 13 arranged along the longitudinal direction of the fluid pipe 1. Here, a rubber ring 22 along the outer periphery of the perforation Q is interposed between the inner surface of the branch pipe 12 and the outer surface of the fluid pipe 1 so that overflow from the inside of the fluid pipe 1 does not occur due to drilling described later. ing. Then, after attaching the cover 11 and the branch pipe 12 to the fluid pipe 1, water pressure is applied to the branch pipe 12 to appropriately confirm the water tightness of the gap between the outer surface of the fluid pipe 1 and the inner face of the branch pipe 12. Also good.

次に、分岐管１２の上フランジ１２ａに、内部に作業弁３６を配設した筐体３５を水密に接続し、更に、筐体３５の上端部に穿孔装置５０の図示しない上端部を水密に接続する。 Next, a casing 35 having a work valve 36 disposed therein is connected to the upper flange 12a of the branch pipe 12 in a watertight manner, and an upper end (not shown) of the punching device 50 is connected to the upper end of the casing 35 in a watertight manner. Connecting.

穿孔装置５０は、図示しない駆動手段に接続され分岐管１２内を流体管１に向け軸方向に伸出するとともに軸周りに回転する軸部材５１と、軸部材５１の先端に固設され流体管１を穿設する穿孔刃５２ａを備えたカッタ部材５２と、から主として構成されており、カッタ部材５２を流体管１の外面にアプローチして外壁を穿孔し、流体管１の管壁に穿孔Ｑを穿設する。 The perforating apparatus 50 is connected to a driving means (not shown) and extends in the axial direction in the branch pipe 12 toward the fluid pipe 1 and rotates around the axis, and a fluid pipe fixed to the tip of the shaft member 51. The cutter member 52 is provided with a perforating blade 52a for perforating 1 and the cutter member 52 is approached to the outer surface of the fluid pipe 1 to perforate the outer wall. To drill.

穿孔装置５０による穿孔Ｑの穿設後は、図２，３に示されるように、穿孔装置５０を上方に引き上げて筐体３５内に配置させた後、作業弁３６を操作して分岐管１２の止水を行う。そして、穿孔装置５０を筐体３５の上端部から取り外すとともに、筐体３５の上端部に外カバー７０を水密に接続する。この外カバー７０は、側方に向けて一対の開口７１，７１を備えており、これら開口７１，７１は、蓋体７２，７２及びボルト・ナット７３によって水密に閉塞されている。 2 and 3, after the piercing device 50 has drilled the piercing hole Q, the piercing device 50 is lifted upward and placed in the housing 35, and then the work valve 36 is operated to operate the branch pipe 12. Stop water. Then, the punching device 50 is removed from the upper end portion of the housing 35, and the outer cover 70 is connected to the upper end portion of the housing 35 in a watertight manner. The outer cover 70 is provided with a pair of openings 71, 71 facing sideways, and these openings 71, 71 are watertightly closed by lid bodies 72, 72 and bolts / nuts 73.

外カバー７０の図示しない上端部からは、アーム７４が上下動可能に取り付けられている。尚、このアーム７４の下端部には、予め穿孔Ｑにコア４０を嵌設するための操作体５及び操作体５の外周面に予め取り外し可能に取り付けておいたコア４０が内部に配設された弁蓋３が中間部材７５を介して接続されており、アーム７４を外カバー７０の前記上端部に取り付ける際に弁蓋３が外カバー７０内に配置される。尚、アーム７４と前記上端部との間は、図示しないゴム体によって水密に保持されている。更に尚、中間部材７５は筒状に形成されており、内部に後述する回転操作部４ａが挿通配置されている。 An arm 74 is attached to an upper end portion (not shown) of the outer cover 70 so as to be movable up and down. At the lower end of the arm 74, an operating body 5 for fitting the core 40 into the perforation Q and a core 40 that is detachably attached to the outer peripheral surface of the operating body 5 in advance are disposed inside. The valve lid 3 is connected via an intermediate member 75, and the valve lid 3 is disposed in the outer cover 70 when the arm 74 is attached to the upper end portion of the outer cover 70. The arm 74 and the upper end portion are watertightly held by a rubber body (not shown). Further, the intermediate member 75 is formed in a cylindrical shape, and a rotation operation portion 4a described later is inserted and disposed therein.

外カバー７０を筐体３５の上端部に水密に接続した後は、分岐管１２と外カバー７０とを開閉弁を有する図示しないホースやバイパス管等の連通部材によって接続する。そして、外カバー７０の上端部に設けられた図示しない空気弁を開放するとともに、作業弁３６を操作して分岐管１２を開放することで、外ケース７０内及び分岐管１２内を流体管１内を流れていた上水で満たす。 After the outer cover 70 is connected to the upper end of the housing 35 in a watertight manner, the branch pipe 12 and the outer cover 70 are connected by a communication member such as a hose or a bypass pipe (not shown) having an on-off valve. Then, an air valve (not shown) provided at the upper end portion of the outer cover 70 is opened, and the working valve 36 is operated to open the branch pipe 12, thereby allowing the fluid pipe 1 to pass through the outer case 70 and the branch pipe 12. Fill with water that was flowing inside.

外ケース７０内及び分岐管１２内が上水で満たされた後は、前記空気弁を閉塞し、前記開閉弁を開放して分岐管１２と外カバー７０とを連通させ、弁蓋３を外カバー７０に予め取り付けた押圧手段（図示略）により不断水状態で押圧することで、分岐管１２の上フランジ１２ａに弁蓋３を密封状に組付ける。 After the inside of the outer case 70 and the inside of the branch pipe 12 are filled with clean water, the air valve is closed, the on-off valve is opened, the branch pipe 12 and the outer cover 70 are communicated, and the valve lid 3 is removed. The valve lid 3 is assembled in a sealed manner to the upper flange 12a of the branch pipe 12 by being pressed in a non-continuous water state by a pressing means (not shown) attached to the cover 70 in advance.

このとき、分岐管１２内と外カバー７０内とは、流体管１内を流れる上水で満たされて同一の水圧となるので、弁蓋３を上フランジ１２ａに組み付ける際に流体管１内を流れる上水から弁蓋３が受ける抗力を小さく抑えることができる。 At this time, the inside of the branch pipe 12 and the inside of the outer cover 70 are filled with the clean water flowing in the fluid pipe 1 and have the same water pressure. Therefore, when the valve lid 3 is assembled to the upper flange 12a, The drag received by the valve lid 3 from the flowing water can be kept small.

弁蓋３を上フランジ１２ａに組み付けた後は、図５に示されるように、再び蓋体７２，７２を取り外し、開口７１，７１を介して弁蓋３から中間部材７５を取り外すとともに、回転操作部４ａにハンドル７６を取り付ける。 After the valve lid 3 is assembled to the upper flange 12a, as shown in FIG. 5, the lid bodies 72 and 72 are removed again, the intermediate member 75 is removed from the valve lid 3 through the openings 71 and 71, and the rotational operation is performed. A handle 76 is attached to the portion 4a.

弁蓋３は、分岐管１２の内径より小径の外径を有しており、弁蓋３の下部の外周に沿って設けられたＯリング１９により、分岐管１２の内周面に沿って水密に嵌挿されている。また弁蓋３を定置させるよう、固定ボルト１６を螺挿することで弁蓋３の位置固定を行う。固定ボルト１６は、弁蓋３に対して螺挿されることで、弁蓋３を上下方向に規制している。 The valve lid 3 has an outer diameter smaller than the inner diameter of the branch pipe 12, and is watertight along the inner peripheral surface of the branch pipe 12 by an O-ring 19 provided along the outer periphery of the lower portion of the valve lid 3. Is inserted. Further, the position of the valve lid 3 is fixed by screwing a fixing bolt 16 so that the valve lid 3 is fixed. The fixing bolt 16 is screwed into the valve lid 3 to regulate the valve lid 3 in the vertical direction.

回転ネジ４は、弁蓋３の頂部に穿設された挿通孔３２に回転自在に貫通して、上端部を弁蓋３の外部に突出して取り付けられている（図１１参照）。押え板３３は、弁蓋３の上端面にボルト３４で固定され、回転ネジ４の抜出しを阻止する（図１１参照）。上記構成により、回転ネジ４はケース２に対し正逆両方向に回転自在であるが上下動はしない。４ｂは、回転ネジ４の上端部を除いて略全長に亘ってその周面が螺設されたネジ部である。 The rotating screw 4 is rotatably attached to an insertion hole 32 formed in the top of the valve lid 3 and has an upper end projecting outside the valve lid 3 (see FIG. 11). The holding plate 33 is fixed to the upper end surface of the valve lid 3 with a bolt 34 to prevent the rotation screw 4 from being pulled out (see FIG. 11). With the above configuration, the rotating screw 4 is rotatable in both forward and reverse directions with respect to the case 2 but does not move up and down. Reference numeral 4b denotes a screw portion having a circumferential surface screwed over substantially the entire length except for the upper end portion of the rotary screw 4.

図５に示されるように、ネジこま２５は、後述する操作体５の上端部に形成されたガイド溝２１に嵌合するとともに、ネジ部４ｂに螺合しており、回転ネジ４の上端部に形成された回転操作部４ａの回転に応じネジ部４ｂが回転することで、ネジ部４ｂに沿って螺挿するネジこま２５に追随して操作体５が上下動可能となる。 As shown in FIG. 5, the screw top 25 is fitted in a guide groove 21 formed in the upper end portion of the operation body 5 described later, and is screwed into the screw portion 4 b, and the upper end portion of the rotary screw 4. By rotating the screw portion 4b according to the rotation of the rotation operation portion 4a formed in the above, the operation body 5 can move up and down following the screw top 25 screwed along the screw portion 4b.

図２，３に示されるように、操作体５は、穿孔Ｑに対して挿入可能な径に形成された弾性材から成るゴム体７を備える。操作体５は、回転ネジ４のネジ部４ｂを挿入する挿入孔３１が形成されている。また図７に示されるように、ゴム体７の外面にくびれ部７ａが周方向に形成されており、このくびれ部７ａにコア４０を係合させて取り付けることで、コア４０は、後述する操作体５の下方動作においては操作体５から外れてしまうことが無い。 As shown in FIGS. 2 and 3, the operating body 5 includes a rubber body 7 made of an elastic material having a diameter that can be inserted into the perforation Q. The operation body 5 is formed with an insertion hole 31 into which the screw portion 4b of the rotary screw 4 is inserted. Further, as shown in FIG. 7, a constricted portion 7a is formed in the circumferential direction on the outer surface of the rubber body 7, and the core 40 is attached to the constricted portion 7a by engaging with the core 40. In the downward movement of the body 5, the operation body 5 is not detached.

また図３に示されるように、操作体５における上下流側の外面に、上下方向に沿った張出部８、８が、ケース２を構成する弁蓋３若しくは分岐管１２の内面に設けられた溝部３ａに沿って摺接可能に上下方向に延設されている。上記のように構成された張出部８、８が溝部３ａに当接することで、回転ネジ４の回転に伴う操作体５の回転を規制できるように成っている。 Further, as shown in FIG. 3, overhanging portions 8, 8 extending in the vertical direction are provided on the inner surface of the valve lid 3 or the branch pipe 12 constituting the case 2 on the outer surface of the operation body 5 on the upstream and downstream sides. It is extended in the up-down direction so that sliding contact is possible along the groove part 3a. The overhang portions 8, 8 configured as described above are in contact with the groove portion 3 a, so that the rotation of the operating body 5 accompanying the rotation of the rotary screw 4 can be restricted.

次に、図４（ａ）〜（ｃ）に示されるように、本実施例のコア４０は、流体管１の管壁を穿孔形成した穿孔Ｑを防食するために用いられる。詳述するとコア４０は、平面視略円形状の周壁を有し内部が貫通形成された筒状体４１と、この筒状体４１の外周面に配設された防食部材４２と、から構成されており、コア４０の先端部は、断面視略円形状の流体管１に径方向に穿設された穿孔Ｑの内周面形状に沿うように、周方向に曲線形状に形成されている。筒状体４１は比較的硬質であって縮径方向に変形可能な弾性を有する例えばポリエチレン等の樹脂材から成り、この筒状体４１の外周面に、筒状体４１と同等種の若しくは異種であって筒状体４１よりも軟質であって弾性を有する樹脂材から成る防食部材４２が、図示しない接着材により接着されている。尚、防食部材４２は、例えば筒状体４１の外周面に熱溶着されていてもよい。 Next, as shown in FIGS. 4A to 4C, the core 40 of this embodiment is used to prevent corrosion of the perforations Q formed by perforating the tube wall of the fluid tube 1. More specifically, the core 40 is composed of a cylindrical body 41 having a substantially circular peripheral wall in plan view and having an inner through-hole formed therein, and an anticorrosion member 42 disposed on the outer peripheral surface of the cylindrical body 41. The tip of the core 40 is formed in a curved shape in the circumferential direction so as to follow the shape of the inner peripheral surface of the perforation Q drilled in the radial direction in the fluid pipe 1 having a substantially circular shape in cross section. The cylindrical body 41 is made of a resin material such as polyethylene that is relatively hard and has elasticity that can be deformed in the direction of diameter reduction. The cylindrical body 41 has the same or different kind of the cylindrical body 41 on the outer peripheral surface thereof. In addition, the anticorrosion member 42 made of a resin material that is softer and more elastic than the cylindrical body 41 is bonded by an adhesive (not shown). The anticorrosion member 42 may be thermally welded to the outer peripheral surface of the cylindrical body 41, for example.

筒状体４１は、より具体的には、自然状態で穿孔Ｑよりも外径方向に突出形成され、縮径変形することで穿孔Ｑを通過し流体管１の内部に配置される先端部４１ｂと、先端部４１ｂに連続して延設された胴部４１ｃと、更に胴部４１ｃに連続し穿孔Ｑよりも大径に膨出した後端部４１ｄとから成る。先端部４１ｂは、流体管１に穿設された穿孔Ｑの曲面形状に沿うように、流体管１の内周面と略同じ曲率の曲面形状の先端面を有している。また、図４（ａ）に示されるように、先端部４１ｂにおける流体管１の管頂を含む近傍に配置される部分が、穿孔Ｑよりも外径方向に突出した鍔部４１ａに形成されている。 More specifically, the cylindrical body 41 is formed so as to protrude in the outer diameter direction from the perforation Q in a natural state, and passes through the perforation Q by being deformed in a reduced diameter so as to be disposed inside the fluid pipe 1. And a barrel portion 41c extending continuously from the tip portion 41b, and a rear end portion 41d continuing to the barrel portion 41c and bulging to a larger diameter than the perforations Q. The distal end portion 41 b has a curved distal end surface having substantially the same curvature as the inner peripheral surface of the fluid tube 1 so as to follow the curved surface shape of the perforation Q formed in the fluid tube 1. Further, as shown in FIG. 4A, a portion disposed in the vicinity including the top of the fluid pipe 1 in the tip portion 41b is formed in the flange portion 41a protruding in the outer diameter direction from the perforation Q. Yes.

この胴部４１ｃの外周面に亘って接着された防食部材４２は、その自然状態においては穿孔Ｑよりも大径であって、筒状体４１よりも軟質であるため更に弾性変形し易く形成されている。 The anticorrosion member 42 bonded over the outer peripheral surface of the body portion 41c has a larger diameter than the perforations Q in its natural state and is softer than the cylindrical body 41, so that it is more easily elastically deformed. ing.

上記構成を有するコア嵌設装置１０において、コア４０の穿孔Ｑへの取り付けについて説明する。図１に示したように穿孔装置５０により流体管１に穿孔Ｑを穿設した後に、図２，３に示すように、外周面にコア４０を取り外し可能に取り付けた操作体５が、ハンドル７６の水平回動によって生じる非上昇の回転ネジ４の回転により、ケース２内部をコア４０とともに下方に動作することで、操作体５の外周面に取り付けられたコア４０は、先端部４１ｂの鍔部４１ａを縮径変形させつつ穿孔Ｑ内に挿入される。 In the core fitting apparatus 10 having the above configuration, attachment of the core 40 to the perforation Q will be described. As shown in FIGS. 2 and 3, the operating body 5 having the core 40 detachably attached to the outer peripheral surface is provided with a handle 76 after the perforation device 50 has perforated Q in the fluid pipe 1 as shown in FIG. The core 40 attached to the outer peripheral surface of the operating body 5 is moved downward with the core 40 by the rotation of the non-lifting rotary screw 4 generated by the horizontal rotation of the operation body 5, so that the collar portion of the distal end portion 41 b 41a is inserted into the perforation Q while being reduced in diameter.

図５，６に示されるように、操作体５のゴム体７が穿孔Ｑに対して挿入されるとともに、コア４０は、穿孔Ｑを通過した鍔部４１ａが流体管１の内部において弾性復元し流体管１の内周面に係合することで、穿孔Ｑに嵌設される。コア４０は、穿孔Ｑに嵌設した状態では、流体管１の金属素地が露出した穿孔Ｑの内周面に亘り防食部材４２が当接することで、穿孔Ｑを防食するように成っている。この状態でコア４０の後端部４１ｄは、穿孔Ｑ近傍の流体管１の外周面に当接する。尚、コア４０が穿孔Ｑに嵌設された状態においても、流体管１の内部は操作体５により流路を遮断されることなく開放されており、上水が流通可能となっている。 As shown in FIGS. 5 and 6, the rubber body 7 of the operation body 5 is inserted into the perforation Q, and the core 40 is elastically restored in the inside of the fluid pipe 1 by the flange portion 41 a that has passed through the perforation Q. By engaging with the inner peripheral surface of the fluid pipe 1, the perforation Q is fitted. When the core 40 is fitted in the perforation Q, the anticorrosion member 42 contacts the inner peripheral surface of the perforation Q where the metal base of the fluid pipe 1 is exposed, thereby preventing the perforation Q from being corroded. In this state, the rear end portion 41d of the core 40 abuts on the outer peripheral surface of the fluid pipe 1 in the vicinity of the perforation Q. Even in the state where the core 40 is fitted in the perforation Q, the inside of the fluid pipe 1 is opened without being blocked by the operating body 5, so that clean water can flow.

次に、図７，８に示されるように、ハンドル７６の水平回動によって生じる回転ネジ４の回転により、操作体５がケース２内部を上方に動作することで、操作体５の外面に取り付けられたコア４０に対し上方に向かう引上げ力が作用するが、コア４０の鍔部４１ａが穿孔Ｑ近傍の流体管１の内周面に係合していることが反力として作用するため（図７点線囲い部参照）、コア４０は、前記引上げ力に抗して穿孔Ｑに嵌設された状態を維持し、すなわち上方に移動する操作体５のくびれ部７ａから取り外されることになる。 Next, as shown in FIGS. 7 and 8, the operating body 5 is attached to the outer surface of the operating body 5 by moving the inside of the case 2 upward by the rotation of the rotating screw 4 generated by the horizontal rotation of the handle 76. The upward pulling force acts on the core 40 formed, but the fact that the flange 41a of the core 40 is engaged with the inner peripheral surface of the fluid pipe 1 near the perforation Q acts as a reaction force (see FIG. The core 40 is removed from the constricted portion 7a of the operating body 5 that moves upward while maintaining the state of being fitted into the perforation Q against the pulling force.

図９に示されるように、操作体５による穿孔Ｑへのコア４０の嵌設後、操作体５に替えて、流体管１の管路を遮断若しくは開放するための仕切弁としての弁体６０をケース２内に配設する。より詳しくは、先ず、図８，９に示されるように、回転操作部４ａからハンドル７６を取り外すとともに弁蓋３を中間部材７５を介してアーム７４に接続させ、外カバー７０の開口７１，７１を蓋体７２，７２及びボルト・ナット７３によって閉塞する。 As shown in FIG. 9, after the core 40 is fitted into the perforation Q by the operating body 5, the valve body 60 as a gate valve for blocking or opening the conduit of the fluid pipe 1 is used instead of the operating body 5. Is disposed in the case 2. More specifically, first, as shown in FIGS. 8 and 9, the handle 76 is removed from the rotation operation portion 4 a and the valve lid 3 is connected to the arm 74 via the intermediate member 75 to open the openings 71, 71 of the outer cover 70. Is closed by lid bodies 72 and 72 and bolts and nuts 73.

そして、固定ボルト１６を弁蓋３から取り外し、アーム７４を上方に移動させることによって弁蓋３と操作体５とを上方に引き上げた後に、作業弁３６を操作して分岐管１２の止水を行うとともに、前記連通部材の開閉弁を閉塞する。 Then, the fixing bolt 16 is removed from the valve lid 3 and the arm 74 is moved upward to raise the valve lid 3 and the operating body 5, and then the work valve 36 is operated to stop the water in the branch pipe 12. In addition, the on-off valve of the communication member is closed.

次に、筐体３５の上端部から外カバー７０を取り外す。そして、外カバー７０内に配置された弁蓋３の回転ネジ４から操作体５を取り外すとともに、操作体５に替えて回転ネジ４に弁体６０を取り付ける。この後、外カバー７０を、図１０に示されるように、再び筐体３５の上端部に水密に接続し、前記空気弁及び作業弁３６を操作して分岐管１２を開放し、外カバー７０内及び分岐管１２内を上水で満たす。更に、前記空気弁を閉塞した後に再び前記連通部材の開閉弁を開放することで外カバー７０内の水圧と分岐管１２内の水圧とを常時一定に保つ。 Next, the outer cover 70 is removed from the upper end of the housing 35. And while removing the operation body 5 from the rotation screw 4 of the valve lid 3 arrange | positioned in the outer cover 70, it replaces with the operation body 5 and attaches the valve body 60 to the rotation screw 4. FIG. Thereafter, as shown in FIG. 10, the outer cover 70 is again watertightly connected to the upper end portion of the housing 35, the air valve and the work valve 36 are operated to open the branch pipe 12, and the outer cover 70. The inside and the branch pipe 12 are filled with clean water. Furthermore, the water pressure in the outer cover 70 and the water pressure in the branch pipe 12 are always kept constant by opening the on-off valve of the communication member again after closing the air valve.

尚、弁体６０は、穿孔Ｑに対して挿入可能な径に形成された弾性材から成り、操作体５と同一構成のガイド溝６１、張出部６２、ネジこま６３、挿入孔６４を有している。このため弁体６０は、回転操作部４ａの回転に応じて上下動可能となる。 The valve body 60 is made of an elastic material having a diameter that can be inserted into the perforation Q, and has a guide groove 61, an overhang portion 62, a screw top 63, and an insertion hole 64 that have the same configuration as the operation body 5. doing. Therefore, the valve body 60 can move up and down according to the rotation of the rotation operation unit 4a.

このように操作体５に替えて弁体６０が取り付けられた弁蓋３を、図１１に示されるように、作業弁３６が開放された後に前記外カバーに予め取り付けた押圧手段（図示略）により分岐管１２に向けて不断水状態で押圧することで、流体管１内を流れる上水から弁蓋３が受ける抗力を小さく抑えながら弁蓋３を分岐管１２の上フランジ１２ａに密封状に組付け、固定ボルト１６を再び弁蓋３に螺挿する。更に、前記連通部材の開閉弁を閉塞するとともに、上フランジ１２ａ上から筐体３５及び外カバー７０を取り外す。最後に、リング状のフランジ９を弁蓋３に挿入し、ボルト・ナット１４でフランジ９と分岐管１２とを締結する。 As shown in FIG. 11, the pressure lid (not shown) is attached in advance to the outer cover after the work valve 36 is opened as shown in FIG. 11. The valve lid 3 is hermetically sealed to the upper flange 12a of the branch pipe 12 while suppressing the drag received by the valve lid 3 from the water flowing in the fluid pipe 1 by pressing against the branch pipe 12 in a continuous water state. The assembly bolt 16 is screwed into the valve lid 3 again. Further, the open / close valve of the communication member is closed, and the casing 35 and the outer cover 70 are removed from the upper flange 12a. Finally, the ring-shaped flange 9 is inserted into the valve lid 3, and the flange 9 and the branch pipe 12 are fastened with bolts and nuts 14.

以後、弁体６０は、回転操作部４ａの回転によって下方に移動することで流体管１の内周面に弾性変形しながら水密に当接することで流体管１の管路を遮断するとともに、回転操作部４ａの回転によって上方に移動することで流体管１の管路を開放するようになる。尚、弁体６０によって流体管１の管路を遮断及び開放させるには、前述したハンドル７６を回転操作部４ａに取り付け、水平回動させてもよい。 Thereafter, the valve body 60 is moved downward by the rotation of the rotation operation portion 4a, thereby shutting off the conduit of the fluid pipe 1 by being in contact with the inner peripheral surface of the fluid pipe 1 while being elastically deformed and watertight. The fluid pipe 1 is opened by moving upward by the rotation of the operation unit 4a. In order to block and open the conduit of the fluid pipe 1 by the valve body 60, the handle 76 described above may be attached to the rotation operation unit 4a and horizontally rotated.

以上、本実施例におけるコア嵌設装置１０及びコア嵌設方法にあっては、コア４０は、穿孔Ｑ近傍の流体管１内面に係合するために、縮径方向に変形可能な弾性を有し自然状態で穿孔Ｑよりも外径方向に突出形成された鍔部４１ａを備えており、コア４０は、操作体５の外周面に取り付けられた状態で操作体５とともに穿孔Ｑにアプローチし、鍔部４１ａが流体管１内面に係合することでコア４０が穿孔Ｑに嵌設され、操作体５が穿孔Ｑから離間するときに、コア４０は穿孔Ｑに嵌設された状態のまま操作体５から取り外されるので、外周面にコア４０を取り付けた状態の操作体を穿孔Ｑに挿入させ、鍔部４１ａを弾性により縮径させて穿孔Ｑ内を挿通させるとともに、鍔部４１ａが穿孔Ｑを貫通した後に、鍔部４１ａを流体管１内で自然状態に弾性復元させることで、例えば、コア４０を拡径させる等の特別な手段を要さずとも、コア４０を穿孔Ｑに対して容易に嵌設させることができる。また、コア４０を穿孔Ｑに対して嵌設させた後は、操作体５を穿孔Ｑから離間させる際に、鍔部４１ａが穿孔Ｑ近傍の流体管１の内面に係止することで、コア４０の穿孔Ｑへの嵌設を保ったまま確実に操作体５だけを穿孔Ｑから離間させることができる。 As described above, in the core fitting device 10 and the core fitting method according to the present embodiment, the core 40 has elasticity that can be deformed in the diameter reducing direction in order to engage with the inner surface of the fluid pipe 1 in the vicinity of the perforation Q. In the natural state, it is provided with a flange 41a that protrudes in the outer diameter direction from the perforation Q, and the core 40 approaches the perforation Q together with the operation body 5 while being attached to the outer peripheral surface of the operation body 5. When the collar portion 41a is engaged with the inner surface of the fluid pipe 1, the core 40 is fitted into the perforation Q, and when the operating body 5 is separated from the perforation Q, the core 40 is operated while being fitted in the perforation Q. Since it is removed from the body 5, the operating body with the core 40 attached to the outer peripheral surface is inserted into the perforation Q, the diameter of the collar 41a is elastically reduced, and the inside of the perforation Q is inserted. After passing through the flange 41a, the flange 41a is in a natural state in the fluid pipe 1. To be to elastic restoration, for example, without requiring special measures, such as for expanded core 40, it can be easily inlaid be the core 40 against the borehole Q. In addition, after the core 40 is fitted to the perforation Q, when the operating body 5 is separated from the perforation Q, the flange portion 41a is locked to the inner surface of the fluid pipe 1 in the vicinity of the perforation Q. Only the operating body 5 can be reliably separated from the perforation Q while the fitting of the 40 perforations Q is maintained.

また、コア４０は、穿孔Ｑの略全内周面に亘り当接する防食部材４２を備えているので、コア４０の防食部材４２を穿孔Ｑの略全内周面に亘り当接させることで、穿孔Ｑの防食を確実にできる。 Further, since the core 40 includes the anticorrosion member 42 that abuts over substantially the entire inner peripheral surface of the perforation Q, by bringing the anticorrosion member 42 of the core 40 into abutment over the substantially entire inner peripheral surface of the perforation Q, Corrosion prevention of the perforations Q can be ensured.

また、コア４０は、穿孔Ｑよりも大径の後端部４１ｄを備えているので、コア４０の後端部４１ｄを穿孔Ｑ近傍の流体管１外面に当接させることで、コア４０の過挿入を防止できる。 Further, since the core 40 has a rear end portion 41d having a diameter larger than that of the perforation Q, the core 40 has a rear end portion 41d brought into contact with the outer surface of the fluid pipe 1 in the vicinity of the perforation Q. Insertion can be prevented.

また、回転ネジ４に、コア４０を穿孔Ｑに嵌設させた後の操作体５に替えて、流体管１の流路を遮断若しくは開放可能な弁体６０が交換可能であるので、コア４０の穿孔Ｑへの嵌設と流体管１の流路の遮断若しくは開放とで操作体５と弁体６０以外の構成を共有して使用するので、流体管１の流路の遮断若しくは開放を個別の構成を用いずとも安価に行うことができる。 In addition, the valve body 60 that can block or open the flow path of the fluid pipe 1 can be replaced in place of the operation body 5 after the core 40 is fitted in the perforation Q on the rotary screw 4. Since the configuration other than the operating body 5 and the valve body 60 is shared between the fitting of the perforated Q and the flow path of the fluid pipe 1, the flow path of the fluid pipe 1 is individually blocked or opened. This can be done at a low cost without using the above configuration.

以上、本発明の実施例を図面により説明してきたが、具体的な構成はこれら実施例に限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれる。 Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

例えば、前記実施例では、弁体６０は、ケース２内で回転ネジ４の軸方向に操作される仕切弁であったが、本発明の弁体は、流体管の流路の遮断時にコアの当接部と密封状に当接する構成を有していれば、例えば軸回りに回転操作されることで流路を遮断するいわゆるバタフライ弁等であってもよい。 For example, in the above embodiment, the valve body 60 is a gate valve that is operated in the axial direction of the rotary screw 4 in the case 2, but the valve body of the present invention is a core valve when the flow path of the fluid pipe is shut off. A so-called butterfly valve or the like that shuts off the flow path by being rotated around an axis may be used as long as it has a configuration that comes into contact with the contact portion in a sealed manner.

また、前記実施例では、流体管１が金属製の管であって、コア４０が流体管１に穿設された穿孔Ｑを防食する防食部材４２を備えた防食用のコアであるが、流体管の材質若しくはコアの用途は必ずしも本実施例に限られず、例えば流体管が塩ビ管等の樹脂製の管であるとともに、コアが前記樹脂製の管に穿設された穿孔の周囲管壁の強度を増進する用途で設けられるコアであっても構わない。 Moreover, in the said Example, although the fluid pipe | tube 1 is a metal pipe | tube and the core 40 is an anticorrosion core provided with the anticorrosion member 42 which prevents the perforation Q drilled in the fluid pipe | tube 1, The material of the pipe or the use of the core is not necessarily limited to the present embodiment. For example, the fluid pipe is a resin pipe such as a vinyl chloride pipe, and the core is a peripheral pipe wall of a perforation formed in the resin pipe. It may be a core provided for the purpose of increasing strength.

また、前記実施例では、コア４０を構成する筒状体４１及び防食部材４２が、ポリエチレン等の樹脂材から成っているが、コアを構成する部材の材質は、例えばゴム材であってもよいし、エラストマー等の他の材料から成るものでも構わない。 Moreover, in the said Example, although the cylindrical body 41 and the anti-corrosion member 42 which comprise the core 40 consist of resin materials, such as polyethylene, the material of the member which comprises a core may be a rubber material, for example. However, it may be made of other materials such as an elastomer.

また、前記実施例では、コア４０を穿孔Ｑに嵌設させた後の弁蓋３を中間部材７５から取り外し、弁蓋３内に操作体５に替えて弁体６０を取り付け、弁体６０を取り付けた弁蓋３を再び中間部材７５に取り付けたが、予め弁体６０を取り付けた弁蓋を個別に用意し、コア４０を穿孔Ｑに嵌設させた後の弁蓋３に替えて弁体６０を取り付けた前記弁蓋を中間部材７５に取り付けるようにしてもよい。 In the above embodiment, the valve lid 3 after the core 40 is fitted in the perforation Q is removed from the intermediate member 75, and the valve body 60 is attached in the valve lid 3 in place of the operating body 5. The attached valve lid 3 is attached to the intermediate member 75 again. However, a valve lid to which the valve body 60 is previously attached is separately prepared, and the valve body 3 is replaced with the valve lid 3 after the core 40 is fitted in the perforation Q. The valve lid to which 60 is attached may be attached to the intermediate member 75.

１流体管
２ケース
４回転ネジ
５操作体
１０コア嵌設装置
４０コア
４１筒状体
４１ａ鍔部
４１ｄ後端部
４２防食部材
５０穿孔装置
６０弁体
Ｑ穿孔 DESCRIPTION OF SYMBOLS 1 Fluid pipe 2 Case 4 Rotating screw 5 Operation body 10 Core insertion apparatus 40 Core 41 Cylindrical body 41a ridge part 41d Rear end part 42 Corrosion prevention member 50 Punching device 60 Valve body Q Drilling

Claims

流体管に穿設される穿孔に連通し該流体管の外周を密封状に被覆したケースと、該ケース内にて非上昇の回転ネジに取り付けられ、該回転ネジの回転により前記穿孔に向けて回転が規制された状態で操作される操作体と、該操作体に取り外し可能に取り付けられ、前記穿孔に嵌設される略筒状体のコアと、を備えたコア嵌設装置であって、
前記コアの前記流体管の内部に配置される先端部は、前記穿孔の曲面形状に沿うように、前記流体管の内周面と略同じ曲率の曲面形状の先端面を有する鍔部に形成されており、前記操作体の外周面に取り付けられた前記コアは、前記先端部の前記鍔部を縮径変形させつつ前記穿孔内に挿入され、前記穿孔を通過した前記鍔部が前記流体管の内部において弾性復元し前記流体管の内周面に係合することで、前記穿孔に嵌設され、前記操作体が前記穿孔から離間するときに、前記コアは該穿孔に嵌設された状態のまま前記操作体から取り外されることを特徴とするコア嵌設装置。 A case that is connected to a perforation formed in the fluid pipe and that has an outer periphery of the fluid pipe covered in a hermetically sealed manner, and is attached to a non-raising rotary screw in the case, and the rotation screw rotates toward the perforation. A core fitting device comprising: an operating body that is operated in a state in which rotation is restricted ; and a substantially cylindrical core that is removably attached to the operating body and is fitted into the perforation,
The tip portion of the core disposed inside the fluid pipe is formed in a flange portion having a curved tip surface having substantially the same curvature as the inner peripheral surface of the fluid pipe so as to follow the curved shape of the perforation. and has the core which is attached to the outer peripheral surface of the front SL operating body is inserted into the flange portion in the borehole while shrink-deformed with the tip, the collar portion is the fluid tube which has passed through the perforations The core is fitted into the perforation when the operating body is separated from the perforation by being elastically restored inside and engaging with the inner peripheral surface of the fluid pipe. The core fitting device, wherein the core fitting device is removed from the operating body as it is.

前記コアは、前記穿孔の略全内周面に亘り当接する防食部材を備えていることを特徴とする請求項１に記載のコア嵌設装置。 The core fitting apparatus according to claim 1, wherein the core includes an anticorrosion member that abuts over substantially the entire inner peripheral surface of the perforation.

前記コアは、前記穿孔よりも大径の後端部を備えていることを特徴とする請求項１または２に記載のコア嵌設装置。 The core fitting apparatus according to claim 1, wherein the core includes a rear end portion having a diameter larger than that of the perforation.

前記流体管の流路を遮断若しくは開放可能な弁体が、前記回転ネジあるいはケースに取付け可能であることを特徴とする請求項１ないし３のいずれかに記載のコア嵌設装置。 Flow path blocking or openable valve body before Symbol fluid tube, a core inlaid apparatus according to any one of 3 claims 1, characterized in that it is attachable to the rotating screw or case.

流体管に穿設される穿孔に連通し該流体管の外周を密封状に被覆したケースと、該ケース内にて非上昇の回転ネジに取り付けられ、該回転ネジの回転により前記穿孔に向けて回転が規制された状態で操作される操作体と、該操作体に取り外し可能に取り付けられ、前記穿孔に嵌設される略筒状体のコアと、を用いるコア嵌設方法であって、
前記コアの前記流体管の内部に配置される先端部は、前記穿孔の曲面形状に沿うように、前記流体管の内周面と略同じ曲率の曲面形状の先端面を有する鍔部に形成されており、前記操作体の外周面に取り付けられた前記コアは、前記先端部の前記鍔部を縮径変形させつつ前記穿孔内に挿入され、前記穿孔を通過した前記鍔部が前記流体管の内部において弾性復元し前記流体管の内周面に係合することで、前記穿孔に嵌設され、前記操作体が前記穿孔から離間するときに、前記コアは該穿孔に嵌設された状態のまま前記操作体から取り外されることを特徴とするコア嵌設方法。 A case that is connected to a perforation formed in the fluid pipe and that has an outer periphery of the fluid pipe covered in a hermetically sealed manner, and is attached to a non-raising rotary screw in the case, and the rotation screw rotates toward the perforation. A core fitting method using an operating body that is operated in a state where rotation is restricted , and a substantially cylindrical core that is removably attached to the operating body and is fitted into the perforation,
The tip portion of the core disposed inside the fluid pipe is formed in a flange portion having a curved tip surface having substantially the same curvature as the inner peripheral surface of the fluid pipe so as to follow the curved shape of the perforation. and has the core which is attached to the outer peripheral surface of the front SL operating body is inserted into the flange portion in the borehole while shrink-deformed with the tip, the collar portion is the fluid tube which has passed through the perforations The core is fitted into the perforation when the operating body is separated from the perforation by being elastically restored inside and engaging with the inner peripheral surface of the fluid pipe. The core fitting method, wherein the core is removed from the operating body as it is.