JP2000081187A - Drilling method for fluid pipe and recessed part forming device for drilling - Google Patents
Drilling method for fluid pipe and recessed part forming device for drillingInfo
- Publication number
- JP2000081187A JP2000081187A JP10268925A JP26892598A JP2000081187A JP 2000081187 A JP2000081187 A JP 2000081187A JP 10268925 A JP10268925 A JP 10268925A JP 26892598 A JP26892598 A JP 26892598A JP 2000081187 A JP2000081187 A JP 2000081187A
- Authority
- JP
- Japan
- Prior art keywords
- fluid pipe
- pipe
- drill
- hole
- working
- 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.)
- Granted
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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/04—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
- F16L41/06—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、例えば水道管やガ
ス管等の流体管に、外面より内面方向に貫通孔を設ける
流体管の穿孔方法および穿孔時に使用する穿孔用凹部形
成装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for piercing a fluid pipe, such as a water pipe or a gas pipe, in which a through-hole is provided in a direction from an outer surface to an inner surface, and a piercing recess forming apparatus used for piercing.
【0002】[0002]
【従来の技術】流体管Pに貫通孔P1を設ける方法とし
て例えば図4に示すものが知られており、流体管Pにケ
ース体Aが装着され、ケース体Aの作業管部Bの上方に
設けられた作業用仕切弁Cに穿孔機Dが取り付けられて
いる。2. Description of the Related Art As a method of providing a through hole P1 in a fluid pipe P, for example, a method shown in FIG. 4 is known. A case body A is mounted on a fluid pipe P, The drilling machine D is attached to the provided work gate valve C.
【0003】穿孔機Dには、先端に切刃E1を形成した
円筒形のホールソーEが回転可能かつ進退自在に設けら
れており、ホールソーEの中心には、センタードリルF
がその先端部をホールソーEの切刃E1より突出して取
り付けられている。[0003] A drilling machine D is provided with a cylindrical hole saw E having a cutting edge E1 at its tip so as to be rotatable and movable back and forth.
Is mounted with its tip protruding from the cutting blade E1 of the hole saw E.
【0004】作業用仕切弁Cは、流路を遮断する弁体C
1と、弁体C1を進退させる操作桿C2と、接続するた
めのフランジ部C3とによって構成されている。[0004] The work gate valve C is provided with a valve body C for shutting off the flow path.
1, an operating rod C2 for moving the valve element C1 forward and backward, and a flange portion C3 for connection.
【0005】流体管Pに貫通孔P1を設けるには、穿孔
機DのホールソーEを回転させながら流体管P外周方向
に送り出し、流体管Pに当接させて行われる。[0005] In order to provide the through hole P1 in the fluid pipe P, the hole saw E of the drilling machine D is sent out in the outer peripheral direction of the fluid pipe P while rotating, and is brought into contact with the fluid pipe P.
【0006】[0006]
【発明が解決しようとする課題】このような流体管Pの
穿孔方法においては、流体管Pの外表面にセンタードリ
ルFが最初に当接して管壁に食い込み、位置が決められ
てからホールソーEによって穿孔されるが、流体管Pが
円筒形をしていることや、センタードリルFの先端には
微小の平坦部が設けられていることによって、最初の点
状の孔が形成される前にセンタードリルFは管軸直角方
向に滑ってしまい所定の位置から外れることがある。In such a method for drilling a fluid pipe P, a center drill F first comes into contact with the outer surface of the fluid pipe P and bites into the pipe wall, and after the position is determined, the hole saw E is removed. Before the first point-shaped hole is formed, the fluid pipe P has a cylindrical shape and the tip of the center drill F has a minute flat portion. The center drill F slips in a direction perpendicular to the pipe axis and may come off a predetermined position.
【0007】センタードリルFを基にしてホールソーE
が貫通孔P1を形成するので、センタードリルFが所定
の位置より外れると貫通孔P1の位置もずれてしまう。A hole saw E based on a center drill F
Forms the through hole P1, so that if the center drill F deviates from a predetermined position, the position of the through hole P1 also shifts.
【0008】作業管部Bと貫通孔P1の中心がずれる
と、分岐の場合には、損失水頭が増加して流量が減った
り、貫通孔P1に防錆コアが挿入できない等の問題があ
り、貫通孔P1より弁体を挿入して流体管の流れを止め
る遮断弁装置の場合には、弁体が挿入不可能になった
り、挿入した弁体を引き出せなくなる等の問題があっ
た。また、場合によってはホールソーEの損傷の危険も
ある。If the center of the working pipe portion B and the center of the through hole P1 are shifted, in the case of a branch, there is a problem that the head loss increases and the flow rate decreases, and a rust prevention core cannot be inserted into the through hole P1. In the case of the shut-off valve device in which the flow of the fluid pipe is stopped by inserting the valve body through the through hole P1, there have been problems such that the valve body cannot be inserted or the inserted valve body cannot be pulled out. In some cases, the hole saw E may be damaged.
【0009】本発明が解決しようとする課題は、上記問
題を解決するためになされたもので、流体管の所定の位
置に確実に貫通孔を設けることができる流体管の穿孔方
法および穿孔時に使用する穿孔用凹部形成装置を提供す
る点にある。The problem to be solved by the present invention is to solve the above-mentioned problem, and a method for piercing a fluid pipe and a method for piercing the fluid pipe, which can surely provide a through hole at a predetermined position of the fluid pipe. It is an object of the present invention to provide an apparatus for forming a concave portion for drilling.
【0010】[0010]
【課題を解決するための手段】上記課題を解決するため
に、本発明の流体管の穿孔方法は、既設流体管に作業管
部と作業用仕切弁およびホールソーを装着し、前記流体
管に前記ホールソーで貫通孔を形成する不断水穿孔方法
であり、前記ホールソー設置以前に、別途装着した凹部
形成手段により流体の漏出しない程度の誘導凹部を前記
流体管に形成し、ホールソーのセンタードリルを前記誘
導凹部に係合して穿孔を行うことを特徴としている。こ
の特徴により、ホールソーで流体管を穿孔する以前のド
ライ状態で、ホールソーの適正な進入方向を決定できる
ため、種々の要求に応じた流体管の穿孔が可能なばかり
か、ホールソーの損傷といった予期せぬ事故も防止でき
る。In order to solve the above-mentioned problems, a method of piercing a fluid pipe according to the present invention comprises attaching a working pipe section, a work gate valve and a hole saw to an existing fluid pipe, and attaching the working pipe section to the fluid pipe. This is a method of forming a through hole with a hole saw, and before the hole saw is installed, a recess is formed in the fluid pipe so as not to leak fluid by a separately formed recess forming means, and the center drill of the hole saw is guided by the hole drill. It is characterized in that perforation is performed by engaging with the concave portion. With this feature, the proper approach direction of the hole saw can be determined in the dry state before drilling the fluid pipe with the hole saw, so that not only the drilling of the fluid pipe according to various demands is possible, but also the expectation that the hole saw is damaged. Accidents can be prevented.
【0011】上記課題を解決するために、本発明の流体
管の穿孔方法は、前記作業管部の上方に伸びる積層体に
対して、凹部形成手段を作業管部と同心に取り付けるよ
うにしているのが好ましい。このようにすることで、作
業管部と同心に取り付けられた凹部形成手段により流体
管の外表面に誘導凹部が形成されるため、センタードリ
ルが作業管部の中心と同じ位置に形成された誘導凹部に
係合して、作業管部の中心に誘導されるので、流体管の
表面を滑って管軸直角方向に位置が外れることがなくな
る。したがって、作業管部の中心に誘導されるたセンタ
ードリルを中心にしてホールソーによって貫通孔が所定
の位置に形成される。In order to solve the above-mentioned problems, a method of piercing a fluid pipe according to the present invention is such that a recess forming means is mounted concentrically with a working pipe portion with respect to a laminate extending above the working pipe portion. Is preferred. By doing so, the guiding recess is formed on the outer surface of the fluid pipe by the recess forming means mounted concentrically with the working pipe part, so that the center drill is formed at the same position as the center of the working pipe part. Since it engages with the concave portion and is guided to the center of the working pipe portion, it does not slip on the surface of the fluid pipe and lose its position in the direction perpendicular to the pipe axis. Therefore, a through hole is formed at a predetermined position by the hole saw around the center drill guided to the center of the work tube.
【0012】本発明の流体管の穿孔方法は、前記凹部形
成手段が、少なくとも作業管部と同心に積層体に取り付
けられる支持部材と、支持部材に対して回転および進退
自在に取り付けられた先端鋭利なドリルとから構成され
ているのが好ましい。このようにすることで、作業管部
と同心に設置された支持部材に設けた先端鋭利なドリル
により誘導凹部を形成するので、誘導凹部は確実に作業
管部の中心と同じ位置に形成され、誘導凹部に係合した
センタードリルは作業管部と同心に導かれるので、セン
タードリルを中心にホールソーによって貫通孔を作業管
部と同心の所定の位置に設けることができる。In the method of drilling a fluid pipe according to the present invention, the concave portion forming means preferably has a support member attached to the laminate at least concentrically with the working tube portion, and a sharp tip attached to the support member so as to rotate and advance / retreat freely. Preferably, the drill is composed of a drill. By doing so, the guide recess is formed by a sharp drill provided on the support member installed concentrically with the working tube, so that the guide recess is reliably formed at the same position as the center of the working tube, Since the center drill engaged with the guiding recess is guided concentrically with the working tube portion, a through hole can be provided at a predetermined position concentric with the working tube portion by a hole saw centering on the center drill.
【0013】本発明の穿孔用凹部形成装置は、流体管に
装着された作業管部の上方に伸びる積層体に取り付けら
れ、流体管の外表面に誘導凹部を形成する装置であっ
て、少なくとも作業管部と同心に取り付けられる支持部
材と、前記支持部材に対して回転および進退自在に取り
付けられた先端鋭利なドリルとから構成されているのが
好ましい。このようにすることで、凹部形成装置は、作
業管部と同心に取り付けられる支持部材と、前記支持部
材に対して回転および進退自在に取り付けられた先端鋭
利なドリルとから構成されているので、作業管部と同心
に設置された先端鋭利なドリルにより作業管部の中心と
同じ位置に誘導凹部を形成することができるので、セン
タードリルは誘導凹部によって確実に所定の位置に導か
れ、ホールソーによって正確な位置に貫通孔を設けるこ
とができる。An apparatus for forming a recess for drilling according to the present invention is an apparatus for forming a guide recess on an outer surface of a fluid pipe attached to a laminate extending above a working pipe section mounted on a fluid pipe. It is preferable that the supporting member is constituted by a supporting member mounted concentrically with the tube portion, and a drill having a sharp tip attached to the supporting member so as to rotate and advance and retreat. By doing so, the concave portion forming device is composed of the support member attached concentrically with the working tube portion, and the sharp tip drill attached to the support member so as to be able to rotate and advance and retreat. The guide recess can be formed at the same position as the center of the work tube by a sharp-tip drill installed concentrically with the work tube, so that the center drill is reliably guided to a predetermined position by the guide recess, and the hole saw A through hole can be provided at an accurate position.
【0014】前記ドリルが、支持部材に固定され、流体
管方向に伸びた安定筒部材の内部に設けられているのが
好ましい。このようにすることで、安定筒部材が流体管
の表面方向に延設されているので、ドリルを支持してい
る部分と誘導凹部を設ける流体管の表面までの距離が近
くなり、ドリルが安定するので誘導凹部形成の位置の正
確性が高まり、延いては、貫通孔の位置がより正確にな
る。[0014] It is preferable that the drill is fixed to a support member and is provided inside a stable tubular member extending in a fluid pipe direction. By doing so, the distance between the portion supporting the drill and the surface of the fluid pipe where the guide recess is provided is short, since the stable cylindrical member extends in the surface direction of the fluid pipe, and the drill is stable. Therefore, the accuracy of the position of the formation of the guiding concave portion is improved, and the position of the through-hole becomes more accurate.
【0015】[0015]
【発明の実施の形態】以下、本発明の実施例を図面に基
づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【0016】図1の実施例において、流体管3にケース
体2が装着され、ケース体2に連設された作業管部2a
の上部に作業用仕切弁4(積層体)が取り付けられ、さ
らにその上部には凹部形成装置1が積載されている。In the embodiment shown in FIG. 1, a case 2 is mounted on a fluid pipe 3 and a working pipe 2a connected to the case 2 is provided.
A work gate valve 4 (laminated body) is attached to the upper part of the upper part, and the concave part forming apparatus 1 is further mounted on the upper part.
【0017】凹部形成装置1は、作業用仕切弁4に取り
付けられる支持部材5と、支持部材5に固定され、流体
管3の方向に伸びている安定筒部材6と、安定筒部材6
の内部に回転かつ進退自在に支持されたドリル7によっ
て構成されている。The recess forming apparatus 1 includes a support member 5 attached to the work gate valve 4, a stable cylinder member 6 fixed to the support member 5 and extending in the direction of the fluid pipe 3, and a stable cylinder member 6.
Is constituted by a drill 7 which is rotatably and reciprocally supported inside.
【0018】支持部材5は、平面視円形に形成され、そ
の中心部にはドリル7が貫通する貫通孔5aが設けら
れ、その貫通孔5aを中心にした同心円上には安定筒部
材6を固定するボルト6eが挿入される固定孔5bが形
成されている。支持部材5の下面には作業用仕切弁4の
位置合せ凹部4bに係合する凸部5cが形成され、上面
には把持部材5dが取り付けられている。The support member 5 is formed in a circular shape in plan view, and a through hole 5a through which a drill 7 penetrates is provided at the center thereof, and the stable cylindrical member 6 is fixed on a concentric circle centered on the through hole 5a. A fixing hole 5b into which a bolt 6e is inserted is formed. On the lower surface of the support member 5, a convex portion 5c that engages with the positioning concave portion 4b of the work gate valve 4 is formed, and on the upper surface, a gripping member 5d is attached.
【0019】安定筒部材6は、中心にドリル7が貫通す
る孔が設けられ、前記固定孔5bに相対する雌ねじ部6
cが形成された固定板6bと、固定板6bに突設され、
内部にドリル7が回転かつ進退自在に支持可能な支持孔
6dが形成された筒状部6aとで構成され、支持部材に
ボルト6eで固定されている。A hole through which a drill 7 penetrates is provided at the center of the stabilizing cylinder member 6, and a female screw portion 6 opposed to the fixing hole 5b is provided.
c is formed on the fixed plate 6b and the fixed plate 6b,
It comprises a cylindrical portion 6a in which a support hole 6d in which a drill 7 can be supported so as to rotate and move forward and backward is formed, and is fixed to a support member with bolts 6e.
【0020】ドリル7は、流体管の表面に誘導凹部を設
けるドリル本体7aと、ドリル本体7aを支持するシャ
フト7bと、ドリル本体7aをシャフト7bに固定する
ナット7cとで構成される。シャフト7bの一方の先端
には、図2に示すようにドリル本体7aを差し込む取付
孔7fが形成され、先端部にはスリット7gが設けられ
てその外周部にはナット7cがねじ込まれる雄ねじ部7
dが設けられている。The drill 7 includes a drill body 7a having a guide recess on the surface of the fluid pipe, a shaft 7b supporting the drill body 7a, and a nut 7c for fixing the drill body 7a to the shaft 7b. At one end of the shaft 7b, there is formed a mounting hole 7f into which the drill body 7a is inserted, as shown in FIG. 2, a slit 7g is provided at the end, and a male screw portion 7 into which a nut 7c is screwed around its outer periphery.
d is provided.
【0021】取付孔7fにドリル本体7aを差し込み、
雄ねじ部7dにナット7cを螺合させて締め付けるとス
リット7gが設けてあるのでシャフト7bの先端部がた
わみ、ドリル本体7aをチャッキングする。他方の端部
には、ドリル7を回転させるハンドルを取り付けるため
の取付部7eが形成されている。ドリル7に回転を与え
るには、ハンドルを取り付けて手で回してもよいし、電
動回転機を取り付けて機械的にまわしてもよい。Insert the drill body 7a into the mounting hole 7f,
When the nut 7c is screwed into the male screw portion 7d and tightened, the slit 7g is provided, so that the tip of the shaft 7b is bent and the drill body 7a is chucked. At the other end, a mounting portion 7e for mounting a handle for rotating the drill 7 is formed. To impart rotation to the drill 7, the handle may be attached and turned by hand, or an electric rotating machine may be attached and mechanically turned.
【0022】ケース体2は、流体管3に取り付けるため
に2分割されており、図示されていないボルト・ナット
によって装着され、一方のケース体2には作業管部2a
が連設されている。作業管部2aの端部には、作業管部
2aの内径と中心を同じに加工された位置合せ凸部2b
が形成されている。The case body 2 is divided into two parts for attachment to the fluid pipe 3, and is attached by bolts and nuts (not shown).
Are connected. At the end of the working tube portion 2a, an alignment convex portion 2b having the same inner diameter and center as the working tube portion 2a is formed.
Are formed.
【0023】作業用仕切弁4は、図示されていない弁体
の出し入れによって流体管3からの流れを遮断可能なも
のであり、取付フランジ4aが両端に設けられている。
取付フランジ4aの内側には、前記位置合せ凸部2bに
係合する位置合せ凹部4bが形成されている。The working gate valve 4 can shut off the flow from the fluid pipe 3 by inserting and removing a valve element (not shown), and mounting flanges 4a are provided at both ends.
Inside the mounting flange 4a, an alignment concave portion 4b that engages with the alignment convex portion 2b is formed.
【0024】作業管部2aと作業用仕切弁4は、位置合
せ凸部2bと位置合せ凹部4bとを係合させて取り付け
られ、作業用仕切弁4と凹部形成装置1は、位置合せ凹
部4bと凸部5cとを係合させて取り付けられるので、
凹部形成装置1は作業管部2aと中心を同じにして取り
付けられることになる。The working pipe portion 2a and the work separating valve 4 are mounted by engaging the positioning convex portion 2b and the positioning concave portion 4b, and the working separating valve 4 and the concave forming device 1 are mounted on the positioning concave portion 4b. And the projections 5c are engaged with each other and attached.
The recess forming device 1 is mounted with the same center as the working tube 2a.
【0025】上記実施例では、作業管部2aに取り付け
られる積層体は、作業用仕切弁4であるが、仕切弁装置
や凹部形成装置を作業管部2aに取り付けるための調整
フランジも積層体として積載される場合もある。In the above embodiment, the laminated body attached to the working pipe 2a is the working gate valve 4. However, the adjusting flange for attaching the gate valve device and the recess forming device to the working pipe 2a is also a laminated body. It may be loaded.
【0026】この実施例による穿孔方法を図3に基づい
て説明する。A perforation method according to this embodiment will be described with reference to FIG.
【0027】まず、(a)に示すように、流体管3にケ
ース体2を水密に取り付け、ケース体2の作業管部2a
の上部に作業用仕切弁4を積載し、作業用弁仕切弁4の
上側の取付フランジ4aに凹部形成装置1を設置する。First, as shown in (a), the case body 2 is attached to the fluid pipe 3 in a watertight manner, and the working pipe 2a of the case body 2 is mounted.
Is mounted on the upper part of the work valve, and the recess forming apparatus 1 is installed on the mounting flange 4a on the upper side of the work valve 4.
【0028】作業用仕切弁4と凹部形成装置1とは作業
管部2aの内径の中心と同心になるように取り付けられ
ており、作業用仕切弁4の弁体4cは開いた状態に操作
され、凹部形成装置1の安定筒部材6の筒状部6aが流
体管3の外表面近くまで延設されドリル7の振れが発生
しないよう設置されている。The work gate valve 4 and the recess forming device 1 are mounted so as to be concentric with the center of the inner diameter of the work pipe 2a, and the valve body 4c of the work gate valve 4 is operated in an open state. The cylindrical portion 6a of the stable cylindrical member 6 of the recess forming device 1 is provided so as to extend near the outer surface of the fluid pipe 3 so that the drill 7 does not run out.
【0029】次に、先端が流体管2の外表面に当接させ
られたドリル7を回転させることによって作業管部2a
の内径の中心と一致する位置に誘導凹部を形成する。Next, by rotating a drill 7 whose tip is in contact with the outer surface of the fluid pipe 2, the working pipe section 2a is rotated.
The guide recess is formed at a position that coincides with the center of the inner diameter of.
【0030】誘導凹部は、ドリル本体7aによって流体
管3の表面に浅い孔状に形成される。The guide recess is formed in a shallow hole shape on the surface of the fluid pipe 3 by the drill body 7a.
【0031】誘導凹部の形成を終えると、(b)に示す
ように、凹部形成装置1を作業用仕切弁4の取付フラン
ジ4aより取り外し、代わりにホールソー9が回転可能
かつ進退自在に設けられた穿孔機8を取り付ける。When the formation of the guiding recess is completed, the recess forming apparatus 1 is detached from the mounting flange 4a of the working gate valve 4 as shown in FIG. The drill 8 is attached.
【0032】ホールソー9の中心には、センタードリル
10が先端をホールソー9より突出して設けられてい
る。At the center of the hole saw 9, a center drill 10 is provided with a tip protruding from the hole saw 9.
【0033】次に、(c)に示すように、穿孔機8から
ホールソー9を流体管方向に送り出し、センタードリル
10を凹部形成装置1により形成された誘導凹部に当接
させる。センタードリル10は回転しながら更に送り出
されて流体管3の管壁を貫通する。Next, as shown in (c), the hole saw 9 is sent out from the drilling machine 8 in the direction of the fluid pipe, and the center drill 10 is brought into contact with the guiding recess formed by the recess forming device 1. The center drill 10 is further fed while rotating, and penetrates the pipe wall of the fluid pipe 3.
【0034】センタードリル10は、誘導凹部に当接し
ているので管軸直角方向等に逃げることがなくなり、作
業管部2aの内径の中心と同位置で貫通する。Since the center drill 10 is in contact with the guiding recess, it does not escape in the direction perpendicular to the pipe axis or the like, and penetrates at the same position as the center of the inner diameter of the working pipe 2a.
【0035】センタードリル10の貫通に引き続き
(d)に示すように、ホールソー9による流体管3の穿
孔が行われる。Following the penetration of the center drill 10, the fluid pipe 3 is pierced by the hole saw 9 as shown in FIG.
【0036】センタードリル10が、作業管部2aの内
径の中心と同位置で貫通して回転の中心となっているの
で、ホールソー9によって穿孔された貫通孔11は作業
管部2aの内径と同心に形成される。Since the center drill 10 penetrates at the same position as the center of the inner diameter of the working tube 2a and is the center of rotation, the through hole 11 drilled by the hole saw 9 is concentric with the inner diameter of the working tube 2a. Formed.
【0037】ホールソー9による穿孔が終了すると、図
(e)に示すように、内部に切片12を収容したホール
ソー9を穿孔機8に引き戻し、作業用仕切弁4の弁体4
cを閉じて貫通孔11から流出する水を遮断する。When the drilling by the hole saw 9 is completed, the hole saw 9 containing the section 12 therein is pulled back to the drilling machine 8 as shown in FIG.
c is closed to block water flowing out of the through-hole 11.
【0038】最後に(f)に示すように、作業用仕切弁
4の取付フランジ4aより穿孔機8を取り外して穿孔作
業を終了する。Finally, as shown in (f), the drilling machine 8 is removed from the mounting flange 4a of the work gate valve 4, and the drilling operation is completed.
【0039】本発明の穿孔方法によると、作業管部と同
心に取り付けられた凹部形成装置により流体管の外表面
に誘導凹部を形成し、前記誘導凹部にセンタードリルを
当接させてホールソーで流体管に貫通孔を設けるので、
センタードリルが誘導凹部に係合して作業管部の中心に
誘導されるため、流体管の表面を滑って管軸直角方向に
位置が外れることがなくなり、ホールソーの位置もずれ
ることがないので貫通孔は所定の位置に形成されること
になる。According to the drilling method of the present invention, the guide recess is formed on the outer surface of the fluid pipe by the recess forming device mounted concentrically with the working pipe portion, and the guide drill is brought into contact with the guide recess, so that the fluid can be fluidized by the hole saw. Since the pipe has a through hole,
The center drill engages with the guide recess and is guided to the center of the working pipe, so it does not slip off the surface of the fluid pipe in the direction perpendicular to the pipe axis, and the hole saw does not shift, so it penetrates The hole will be formed in a predetermined position.
【0040】以上、本発明の実施例を図面により説明し
てきたが、本発明の具体的な構成はこれに限定されるも
のではない。Although the embodiment of the present invention has been described with reference to the drawings, the specific configuration of the present invention is not limited to this.
【0041】[0041]
【発明の効果】請求項1の発明によれば、ホールソーで
流体管を穿孔する以前のドライ状態で、ホールソーの適
正な進入方向を決定できるため、種々の要求に応じた流
体管の穿孔が可能なばかりか、ホールソーの損傷といっ
た予期せぬ事故も防止できる。According to the first aspect of the present invention, it is possible to determine an appropriate entry direction of a hole saw in a dry state before drilling a fluid pipe with a hole saw, so that a fluid pipe can be drilled according to various requirements. In addition, unexpected accidents such as damage to the hole saw can be prevented.
【0042】請求項2の発明によれば、作業管部と同心
に取り付けられた凹部形成手段により流体管の外表面に
誘導凹部が形成されるため、センタードリルが作業管部
の中心と同じ位置に形成された誘導凹部に係合して、作
業管部の中心に誘導されるので、流体管の表面を滑って
管軸直角方向に位置が外れることがなくなる。したがっ
て、作業管部の中心に誘導されるたセンタードリルを中
心にしてホールソーによって貫通孔が所定の位置に形成
される。According to the second aspect of the present invention, since the guiding recess is formed on the outer surface of the fluid pipe by the recess forming means mounted concentrically with the working pipe, the center drill is positioned at the same position as the center of the working pipe. And is guided to the center of the working tube portion, so that the fluid tube does not slip off the surface of the fluid tube in the direction perpendicular to the tube axis. Therefore, a through hole is formed at a predetermined position by the hole saw around the center drill guided to the center of the work tube.
【0043】請求項3の発明によれば、作業管部と同心
に設置された支持部材に設けた先端鋭利なドリルにより
誘導凹部を形成するので、誘導凹部は確実に作業管部の
中心と同じ位置に形成され、誘導凹部に係合したセンタ
ードリルは作業管部と同心に導かれるので、センタード
リルを中心にホールソーによって貫通孔を作業管部と同
心の所定の位置に設けることができる。According to the third aspect of the present invention, since the guide recess is formed by the sharp tip drill provided on the support member provided concentrically with the working tube, the guide recess is surely the same as the center of the work tube. Since the center drill formed at the position and engaged with the guide recess is guided concentrically with the working tube portion, a through hole can be provided at a predetermined position concentric with the working tube portion by a hole saw around the center drill.
【0044】請求項4の発明によれば、凹部形成装置
は、作業管部と同心に取り付けられる支持部材と、前記
支持部材に対して回転および進退自在に取り付けられた
先端鋭利なドリルとから構成されているので、作業管部
と同心に設置された先端鋭利なドリルにより作業管部の
中心と同じ位置に誘導凹部を形成することができるの
で、センタードリルは誘導凹部によって確実に所定の位
置に導かれ、ホールソーによって正確な位置に貫通孔を
設けることができる。According to the fourth aspect of the present invention, the recess forming device comprises a support member mounted concentrically with the working tube portion, and a sharp-pointed drill rotatably and removably mounted on the support member. Since the guiding recess can be formed at the same position as the center of the working tube by a sharp drill installed concentrically with the working tube, the center drill can be surely positioned at a predetermined position by the guiding recess. It is guided and a through hole can be provided at an accurate position by a hole saw.
【0045】請求項5の発明によれば、安定筒部材が流
体管の表面方向に延設されているので、ドリルを支持し
ている部分と誘導凹部を設ける流体管の表面までの距離
が近くなり、ドリルが安定するので誘導凹部形成の位置
の正確性が高まり、延いては、貫通孔の位置がより正確
になる。According to the fifth aspect of the present invention, since the stable cylindrical member extends in the surface direction of the fluid pipe, the distance between the portion supporting the drill and the surface of the fluid pipe provided with the guide recess is short. As a result, the drill is stabilized, so that the accuracy of the position of the formation of the guiding recess is increased, and thus the position of the through hole is more accurate.
【0046】[0046]
【図1】本発明の断面図である。FIG. 1 is a sectional view of the present invention.
【図2】同じく、シャフトの部分拡大図である。FIG. 2 is a partially enlarged view of the shaft.
【図3】同じく、穿孔方法の説明図であるFIG. 3 is an explanatory view of a perforation method.
【図4】従来例を示す断面図である。FIG. 4 is a sectional view showing a conventional example.
1 凹部形成装置 2 ケース体 2a 作業管部 2b 位置合せ凸部 3 流体管 4 作業用仕切弁(積層体) 4a 取付フランジ 4b 位置合せ凹部 4c 弁体 5 支持部材 5a 貫通孔 5b 固定孔 5c 凸部 5d 把持部材 6 安定筒部材 6a 筒状部 6b 固定板 6c 雌ねじ部 6d 支持孔 6e ボルト 7 ドリル 7a ドリル本体 7b シャフト 7c ナット 7d 雄ねじ部 7e 取付部 7f 取付孔 7g スリット 8 穿孔機 9 ホールソー 10 センタードリル 11 貫通孔 12 切片 DESCRIPTION OF SYMBOLS 1 Concavity forming device 2 Case body 2a Working pipe part 2b Positioning convex part 3 Fluid pipe 4 Working gate valve (laminated body) 4a Mounting flange 4b Positioning concave part 4c Valve element 5 Support member 5a Through hole 5b Fixing hole 5c Convex part 5d gripping member 6 stable cylindrical member 6a cylindrical portion 6b fixing plate 6c female screw portion 6d support hole 6e bolt 7 drill 7a drill body 7b shaft 7c nut 7d male screw portion 7e mounting portion 7f mounting hole 7g slit 8 drilling machine 9 hole 11 through hole 12 intercept
───────────────────────────────────────────────────── フロントページの続き (72)発明者 滝口 未男 東京都港区新橋2丁目16番の1の701号ニ ュー新橋ビル706号室 コスモ工機株式会 社内 Fターム(参考) 3H019 AA01 CB01 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Mio Takiguchi 2-16-1 Shinbashi, Minato-ku, Tokyo No. 701, New Shimbashi Building Room 706 Cosmo Koki Co., Ltd. In-house F-term (reference) 3H019 AA01 CB01
Claims (5)
よびホールソーを装着し、前記流体管に前記ホールソー
で貫通孔を形成する不断水穿孔方法であり、前記ホール
ソー設置以前に、別途装着した凹部形成手段により流体
の漏出しない程度の誘導凹部を前記流体管に形成し、ホ
ールソーのセンタードリルを前記誘導凹部に係合して穿
孔を行うようにした流体管の穿孔方法。1. A method of perforating water without water, wherein a working pipe portion, a work gate valve, and a hole saw are attached to an existing fluid pipe, and a through hole is formed in the fluid pipe with the hole saw. A method of piercing a fluid pipe, wherein a guide recess is formed in the fluid pipe to such an extent that fluid does not leak by the recess forming means, and a center drill of a hole saw is engaged with the guide recess to perform drilling.
して、凹部形成手段を作業管部と同心に取り付けるよう
にしている流体管の穿孔方法。2. A method of piercing a fluid pipe, wherein a concave portion forming means is attached concentrically to a working pipe part with respect to a laminate extending above the working pipe part.
部と同心に積層体に取り付けられる支持部材と、支持部
材に対して回転および進退自在に取り付けられた先端鋭
利なドリルとから構成されている請求項2に記載の流体
管の穿孔方法。3. The recess forming means includes a support member attached to the laminate at least concentrically with the working tube portion, and a drill having a sharp tip attached to the support member so as to rotate and advance and retreat. The method for piercing a fluid pipe according to claim 2.
びる積層体に取り付けられ、流体管の外表面に誘導凹部
を形成する装置であって、少なくとも作業管部と同心に
取り付けられる支持部材と、前記支持部材に対して回転
および進退自在に取り付けられた先端鋭利なドリルとか
ら構成されている穿孔用凹部形成装置。4. A device attached to a laminate extending above a working tube mounted on a fluid pipe and forming a guide recess on an outer surface of the fluid pipe, wherein the support is mounted at least concentrically with the working pipe. An apparatus for forming a concave portion for drilling, comprising: a member; and a drill having a sharp tip attached to the support member so as to rotate and move forward and backward.
体管方向に伸びた安定筒部材の内部に設けられている請
求項4に記載の穿孔用凹部形成装置。5. The apparatus according to claim 4, wherein the drill is fixed to a support member and is provided inside a stable tubular member extending in a fluid pipe direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26892598A JP4189935B2 (en) | 1998-09-07 | 1998-09-07 | Drilling method of fluid pipe and recess forming apparatus for drilling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26892598A JP4189935B2 (en) | 1998-09-07 | 1998-09-07 | Drilling method of fluid pipe and recess forming apparatus for drilling |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000081187A true JP2000081187A (en) | 2000-03-21 |
JP4189935B2 JP4189935B2 (en) | 2008-12-03 |
Family
ID=17465193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26892598A Expired - Fee Related JP4189935B2 (en) | 1998-09-07 | 1998-09-07 | Drilling method of fluid pipe and recess forming apparatus for drilling |
Country Status (1)
Country | Link |
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JP (1) | JP4189935B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008045584A (en) * | 2006-08-11 | 2008-02-28 | Sankoo:Kk | Branch takeout joint drilling tool |
JP2011062796A (en) * | 2009-09-18 | 2011-03-31 | Sekisui Chem Co Ltd | Method for forming hole in resin pipe and communication hole boring tool and preliminary hole boring tool used in the same |
KR101249028B1 (en) | 2010-10-13 | 2013-03-29 | 주식회사 지앤씨 | Duct branching off apparatus and duct branching off method |
JP2013199984A (en) * | 2012-03-26 | 2013-10-03 | Cosmo Koki Co Ltd | Fluid pipe branching device |
-
1998
- 1998-09-07 JP JP26892598A patent/JP4189935B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008045584A (en) * | 2006-08-11 | 2008-02-28 | Sankoo:Kk | Branch takeout joint drilling tool |
JP2011062796A (en) * | 2009-09-18 | 2011-03-31 | Sekisui Chem Co Ltd | Method for forming hole in resin pipe and communication hole boring tool and preliminary hole boring tool used in the same |
KR101249028B1 (en) | 2010-10-13 | 2013-03-29 | 주식회사 지앤씨 | Duct branching off apparatus and duct branching off method |
JP2013199984A (en) * | 2012-03-26 | 2013-10-03 | Cosmo Koki Co Ltd | Fluid pipe branching device |
Also Published As
Publication number | Publication date |
---|---|
JP4189935B2 (en) | 2008-12-03 |
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