JP2573090B2 - Perforator - Google Patents

Perforator

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Publication number
JP2573090B2
JP2573090B2 JP2252365A JP25236590A JP2573090B2 JP 2573090 B2 JP2573090 B2 JP 2573090B2 JP 2252365 A JP2252365 A JP 2252365A JP 25236590 A JP25236590 A JP 25236590A JP 2573090 B2 JP2573090 B2 JP 2573090B2
Authority
JP
Japan
Prior art keywords
drill
hole
main body
opening
valve
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.)
Expired - Lifetime
Application number
JP2252365A
Other languages
Japanese (ja)
Other versions
JPH04129608A (en
Inventor
正美 間々田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Denki Co Ltd
Original Assignee
Sanyo Denki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Denki Co Ltd filed Critical Sanyo Denki Co Ltd
Priority to JP2252365A priority Critical patent/JP2573090B2/en
Publication of JPH04129608A publication Critical patent/JPH04129608A/en
Application granted granted Critical
Publication of JP2573090B2 publication Critical patent/JP2573090B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 (イ)産業上の利用分野 本発明は吸収冷凍機の蒸発吸収器胴などの真空容器、
又は水道配管などの加圧容器などに孔を開け、バルブ等
を取付ける穿孔装置に関する。
DETAILED DESCRIPTION OF THE INVENTION (A) Industrial application field The present invention relates to a vacuum vessel such as an evaporative absorber body of an absorption refrigerator,
Also, the present invention relates to a perforation apparatus for forming a hole in a pressurized container such as a water pipe and mounting a valve or the like.

(ロ)従来の技術 例えば特開昭64−10069号公報には蒸発器、吸収器格
納容器にガス貯蔵室を配管接続し、不凝縮ガス中の水素
ガスを透過させて放出する水素放出管を有した例えばパ
ラジウムセルなどの水素ガス放出装置を上記ガス貯蔵室
に配管接続した吸収冷温水機が開示されている。
(B) Prior art For example, Japanese Patent Application Laid-Open No. 64-10069 discloses a hydrogen discharge pipe for connecting a gas storage chamber to an evaporator / absorber storage vessel by piping and allowing hydrogen gas in non-condensable gas to permeate and discharge. There is disclosed an absorption chiller / heater in which a hydrogen gas releasing device such as a palladium cell is connected to the gas storage chamber via a pipe.

上記吸収冷温水機で、例えば水素ガス放出装置の水素
ガス放出能力が低いために、新たに水素ガス放出装置を
ガス貯蔵室に配管接続する場合には、吸収冷温水機の運
転を停止し、蒸発器、吸収器格納容器内の真空破壊を行
う。そして、ガス貯蔵室の孔あけ作業を行い、水素放出
装置を溶接接続し、溶接部の洩れテストを行い、真空引
きを行い蒸発器、吸収器格納容器内の真空引きを行う。
In the absorption chiller / heater, for example, when the hydrogen gas release device has a low hydrogen gas release capability, when newly connecting a hydrogen gas release device to the gas storage chamber, the operation of the absorption chiller / heater is stopped, Vacuum breaks in evaporator and absorber containment vessels. Then, a hole is opened in the gas storage chamber, the hydrogen release device is welded and connected, a leak test of the welded portion is performed, a vacuum is drawn, and the evaporator and the absorber containment are evacuated.

(ハ)発明が解決しようとする課題 上記従来の技術において、真空破壊により、真空引き
などの容器内状態復帰作業を行う必要があり、大幅に作
業時間が長くなるという問題が発生する。又、蒸発器、
吸収器格納容器の例えば臭化リチウム溶液などの充填材
の性質上、真空破壊による腐食が進行するおそれがあ
る。
(C) Problems to be Solved by the Invention In the above-mentioned conventional technique, it is necessary to perform a state return operation such as evacuation due to a vacuum break, which causes a problem that the operation time is greatly lengthened. Also, evaporator,
Due to the nature of the filler such as a lithium bromide solution in the absorber storage container, corrosion due to vacuum breakdown may progress.

本発明は、作業時間を大幅に短縮すると共に、腐食進
行などのダメージを回避することを目的とする。
An object of the present invention is to significantly reduce operation time and to avoid damage such as progress of corrosion.

(ニ)課題を解決するための手段 本発明は上記課題を解決するために、ドリルと、この
ドリルと、このドリルが挿通される貫通孔を底部にもっ
た有底筒状の本体とからなり、この本体の貫通孔にはド
リルの挿通と回転とを自在にさせつつ気密に支持するシ
ール部材と、このシール部材の先端側にある貫通孔の開
口との間において貫通孔に連通する開口とを備え、且つ
この有底筒状の本体の底部にはこの底部から吐出したド
リルの平滑部を覆う、キャップが取りつけられるように
したものである。又、本体の貫通孔に連通する開口にバ
ルブが取り付けられるようにしたものである。
(D) Means for Solving the Problems In order to solve the above problems, the present invention comprises a drill, a drill, and a bottomed cylindrical main body having a through hole at the bottom for inserting the drill. A sealing member that hermetically supports the through-hole of the main body while allowing the drill to be inserted and rotated freely, and an opening that communicates with the through-hole between the opening of the through-hole at the tip side of the sealing member. And a cap that covers the smooth portion of the drill discharged from the bottom is attached to the bottom of the bottomed cylindrical main body. Further, a valve is attached to an opening communicating with the through hole of the main body.

(ホ)作用 吸収冷凍機の真空容器などに孔をあけ、バルブ等を取
り付けるとき、このさく孔装置の本体を真空容器に溶接
によって固定する。その後、この本体に取り付けられて
いるキャップを外しドリルの平滑部に電動ドリルをつな
ぎ、電動ドリルを運転させて真空容器に孔をあける。こ
のとき、ドリル貫通孔とドリルとの隙間はOリングによ
ってシールされており漏れを防止できる。又、作業終了
後はキャップを本体に取り付ければ、Oリングによるシ
ールとキャップによるシールとで確実に漏れは防止され
る。このため、孔あけ作業前の容器の真空破壊及び孔あ
け作業後の真空復帰などを行う必要がなくなり、作業時
間を大幅に短縮することが可能になる。
(E) Action When a hole is made in a vacuum container or the like of an absorption refrigerator and a valve or the like is attached, the body of the drilling device is fixed to the vacuum container by welding. Thereafter, the cap attached to the main body is removed, an electric drill is connected to the smooth portion of the drill, and the electric drill is operated to make a hole in the vacuum vessel. At this time, the gap between the drill through hole and the drill is sealed by an O-ring, so that leakage can be prevented. Further, if the cap is attached to the main body after the operation is completed, the leak is reliably prevented by the seal using the O-ring and the seal using the cap. For this reason, it is not necessary to perform vacuum breakage of the container before the drilling operation and return to the vacuum after the drilling operation, and it is possible to greatly reduce the operation time.

又、バルブ(22)を本体(2)に予め取付けておくこ
とによって、本体の容器などへの取付作業及び孔あけ作
業が終了した後、バルブに容器に水素ガス放出装置など
を取付けることができ、さらに作業時間を短縮すること
が可能になる。
Also, by attaching the valve (22) to the main body (2) in advance, the hydrogen gas releasing device and the like can be mounted on the container after the mounting work on the main body to the container and the drilling work are completed. In addition, the working time can be further reduced.

(ヘ)実施例 以下、本発明の一実施例を図面に基づいて詳細に説明
する。
(F) Example Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

第1図は、本発明に係る穿孔装置(1)の要部切欠断
面図、第2図は孔開工具の本体の縦断面図である。第1
図及び第2図において(2)は例えばステンレス製或い
は鉄製の本体、(3)はドリルであり、本体(2)はい
わゆる有底筒状に形成され、その底部にはドリル(3)
が挿通されるドリル貫通孔(4)が形成されている。こ
のドリル貫通孔(4)は内径がドリル(3)の外径より
僅かに大きい小径部(4A)とこの小径部より内径が大き
い大径部(4B)とから構成されている。そして、ドリル
貫通孔(4)の小径部(4A)には環状の溝(5),
(5)が形成され、これらの溝(5),(5)にシール
部材であるゴム製のO(オー)リング(6),(6)が
設けられている。ここで、Oリング(6),(6)はド
リル(3)の挿通と回転とを自在にさせつつ、ドリル
(3)を気密に支持する。そして、Oリング(6),
(6)とドリル(3)の先端側の大径部(4B)の開口
(4b)との間において、本体(2)の側壁(2A)には貫
通孔(4)に連通する開口(8)が形成され、本体
(2)の一端外周には螺子部(10)が形成されている。
FIG. 1 is a cutaway sectional view of a main part of a drilling device (1) according to the present invention, and FIG. 2 is a longitudinal sectional view of a main body of a drilling tool. First
In FIG. 2 and FIG. 2, (2) is a main body made of, for example, stainless steel or iron, (3) is a drill, and the main body (2) is formed in a so-called bottomed cylindrical shape, and a drill (3) is provided at the bottom thereof.
Is formed through the drill through hole (4). The drill through hole (4) is composed of a small diameter portion (4A) having an inner diameter slightly larger than the outer diameter of the drill (3) and a large diameter portion (4B) having an inner diameter larger than the small diameter portion. An annular groove (5) is formed in the small diameter portion (4A) of the drill through hole (4).
(5) is formed, and rubber O (O) rings (6) and (6) as seal members are provided in these grooves (5) and (5). The O-rings (6) and (6) hermetically support the drill (3) while allowing the drill (3) to be freely inserted and rotated. And O-ring (6),
An opening (8) communicating with the through hole (4) is formed in the side wall (2A) of the main body (2) between the opening (4b) of the large diameter portion (4B) on the tip side of the drill (3) and the drill (3). ) Is formed, and a screw portion (10) is formed on the outer periphery of one end of the main body (2).

ドリル(3)の全長(L1)は本体(2)の全長(L2
より長く、螺旋状の刃(11)が形成されている。そし
て、刃(11)と平滑部(12)との境に例えばスポット溶
接によって凸部(13)が形成されている。この凸部(1
3)はドリル挿通孔(4)に当り、ドリル(3)の矢印
(14)方向への移動を規制するものである。又、(15)
は例えば金属製のストッパー部材であり、円筒状をして
おり、ねじ差込み要の開口(15a)が形成されている。
そして、ドリル(3)による孔あけ作業終了後、ドリル
(3)を矢印(14)方向へ引き、第1図に示したように
刃(11)を大径部(4B)に収納した後、ストッパー部材
(15)をドリル(3)の平滑部(12)に取付けることに
よってドリル(3)の矢印(16)方向への移動は規制さ
れる。
The total length (L 1 ) of the drill (3) is the total length (L 2) of the body ( 2 )
A longer, helical blade (11) is formed. A convex portion (13) is formed at the boundary between the blade (11) and the smooth portion (12) by, for example, spot welding. This protrusion (1
3) hits the drill insertion hole (4) and regulates the movement of the drill (3) in the direction of the arrow (14). Also, (15)
Is a stopper member made of, for example, metal, has a cylindrical shape, and has an opening (15a) required for screw insertion.
After the drilling operation with the drill (3) is completed, the drill (3) is pulled in the direction of the arrow (14), and the blade (11) is stored in the large-diameter portion (4B) as shown in FIG. By attaching the stopper member (15) to the smooth portion (12) of the drill (3), the movement of the drill (3) in the direction of the arrow (16) is restricted.

(17)は例えば金属製のキャップであり、このキャッ
プ(17)の開口部の内壁には本体(2)の螺子部(10)
と螺合する螺子部(18)が形成されており、キャップ
(17)をこの本体(2)の底部に取り付けると、底部
(2)から吐出したドリル(3)の平滑部(12)が覆わ
れる。又、螺子部(18)より内部には段部(20)が形成
され、この段部(20)の端面(20a)と本体(2)の一
端面との間に例えば樹脂製の環状パッキン(21)が挾ま
れている。又、(22)はバルブであり、このバルブ(2
2)は本体(2)の側壁(2A)の開口(8)に例えば溶
接によって取付けられ、バルブ(22)の内部と貫通孔
(4),(7)とは開口(8)によって連通している。
ここで、(23)はフレアナット、(24)はバルブキャッ
プである。
(17) is a metal cap, for example, and the screw portion (10) of the main body (2) is provided on the inner wall of the opening of the cap (17).
The cap (17) is attached to the bottom of the main body (2) to cover the smooth portion (12) of the drill (3) discharged from the bottom (2). Will be Further, a step (20) is formed inside the screw (18), and for example, an annular packing (made of resin) is provided between an end face (20a) of the step (20) and one end face of the main body (2). 21) is sandwiched. (22) is a valve, and this valve (2
2) is attached to the opening (8) of the side wall (2A) of the main body (2) by, for example, welding, and the inside of the valve (22) communicates with the through holes (4) and (7) through the opening (8). I have.
Here, (23) is a flare nut and (24) is a valve cap.

上記のように構成された穿孔装置(1)は、例えば吸
収冷凍機の不凝縮ガスタンクにパラジウムセルである水
素ガス放出装置を取付けるときに使用される。以下、不
凝縮ガスタンクに水素ガス放出装置を取付けるときの作
業方法について説明する。
The perforation device (1) configured as described above is used, for example, when attaching a hydrogen gas discharge device, which is a palladium cell, to a noncondensable gas tank of an absorption refrigerator. Hereinafter, a working method when the hydrogen gas releasing device is mounted on the non-condensing gas tank will be described.

例えば第1図に一点鎖線で示した不凝縮ガスタンクの
側壁(25)の適所に穿孔装置(1)の本体(2)の先端
を当接させ、先端の全周を第1図に破線にて示したよう
に例えば溶接によって側壁(25)に固定する。その後、
キャップ(17)、及びストッパー部材(15)を取外した
状態で、本体(2)から突出したドリル(3)の平滑部
(12)にたとえば電動ドリル(図示せず)を接続する。
そして、電動ドリルを運転させドリル(3)を回転させ
て力を矢印(16)方向へ加え、第1図に破線にて示した
ように側壁(25)にドリル(3)を貫通させ、孔(26)
をあける。その後、ドリル(3)を矢印(14)方向に移
動させ、第1図に実線にて示したように刃(11)を大径
部(4B)に収納した後、電動ドリルをドリル(3)から
取外す。その後、ドリル(3)の平滑部(12)にストッ
パー部材(15)を取付け、ストッパー部材(15)を本体
(2)に当接させた状態で、開口(15a)にねじを差込
み、ストッパー部材(15)をドリル(3)に固定する。
さらに、キャップ(17)を本体(2)にねじ止めし、本
体(2)とキャップ(17)の段部(20)とで環状パッキ
ン(21)を挾む。その後、バルブ(22)に直接、或いは
配管を介して水素ガス放出装置を接続し、漏れ試験等を
行った後、バルブ(22)を開く。
For example, the tip of the body (2) of the perforator (1) is brought into contact with an appropriate position on the side wall (25) of the non-condensable gas tank shown by the dashed line in FIG. As shown, it is fixed to the side wall (25) by, for example, welding. afterwards,
With the cap (17) and the stopper member (15) removed, for example, an electric drill (not shown) is connected to the smooth portion (12) of the drill (3) protruding from the main body (2).
Then, the electric drill is operated and the drill (3) is rotated to apply a force in the direction of the arrow (16), and the drill (3) is passed through the side wall (25) as shown by the broken line in FIG. (26)
Open. Thereafter, the drill (3) is moved in the direction of the arrow (14), and the blade (11) is stored in the large-diameter portion (4B) as shown by the solid line in FIG. Remove from Thereafter, a stopper member (15) is attached to the smooth portion (12) of the drill (3), and a screw is inserted into the opening (15a) with the stopper member (15) in contact with the main body (2). Fix (15) to the drill (3).
Further, the cap (17) is screwed to the main body (2), and the annular packing (21) is sandwiched between the main body (2) and the step (20) of the cap (17). Thereafter, a hydrogen gas discharging device is connected to the valve (22) directly or via a pipe, and after a leak test or the like is performed, the valve (22) is opened.

上記のように穿孔装置(1)を介して水素ガス放出装
置を不凝縮ガスタンクの側壁(25)に接続することによ
って、吸収冷凍機の運転時、不凝縮ガスタンクに溜った
水素ガスが孔(26)、ドリル収納口(7)、開口
(8)、及びバルブ(22)を経て水素ガス放出装置へ流
れ外部へ放出される。
By connecting the hydrogen gas releasing device to the side wall (25) of the non-condensable gas tank via the perforation device (1) as described above, the hydrogen gas accumulated in the non-condensable gas tank can be discharged through the hole (26) during the operation of the absorption refrigerator. ), Through the drill storage port (7), the opening (8), and the valve (22), to the hydrogen gas discharge device, and discharged to the outside.

上記実施例によれば、バルブ(22)を備えた穿孔装置
(1)の本体(2)を側壁(25)に溶接によって固定し
て孔あけ部をシールした後ドリル(3)で孔(26)をあ
けることができ、従来は吸収冷凍機の運転を停止し、タ
ンク内の状態を破壊した後、孔あけ作業を行っていた
が、タンク内の状態を破壊することなく、又運転を続け
た状態でバルブ(22)を取付けることができると共に、
バルブ(22)を取付けた後のタンク及び吸収冷凍機の状
態復帰作業を行う必要がなく、全体の作業時間を大幅に
短縮することができる。又、内部の圧力が大気圧以下で
ある吸収冷凍機においては、上記穿孔装置を使用するこ
とによって真空破壊を行わずに孔あけ作業を行うことが
でき、充填液による真空容器、例えば蒸発器、吸収器収
納容器などの腐食進行を回避することができる。又、大
径部(4B)と外部とはOリング(6),(6)及びパッ
キン(21)によって三重にシールされているため、穿孔
装置(1)を取付けた後、Oリング(6),(6)で漏
れが発生した場合にも、本体(2)とキャップ(17)と
の間に挾まれたパッキン(21)によって、外部への漏れ
を防止することができる。又、漏れが発生した場合も、
漏れを極く僅かに抑えることができる。ここで、キャッ
プ(17)の開口先端と本体(2)とを溶接した場合に
は、漏れを一層確実に防止することができる。
According to the above embodiment, the body (2) of the drilling device (1) provided with the valve (22) is fixed to the side wall (25) by welding, the drilled portion is sealed, and then the hole (26) is drilled (3). In the past, the operation of the absorption chiller was stopped, the state inside the tank was destroyed, and then the drilling work was performed. However, the operation was continued without destroying the state inside the tank. The valve (22) can be mounted in the
There is no need to perform a state return operation of the tank and the absorption refrigerator after the valve (22) is attached, and the entire operation time can be greatly reduced. In addition, in an absorption refrigerator in which the internal pressure is equal to or lower than the atmospheric pressure, it is possible to perform a drilling operation without performing a vacuum break by using the above-described punching device, and to perform a vacuum container with a filling liquid, for example, an evaporator, Corrosion of the absorber storage container and the like can be avoided. Since the large diameter portion (4B) and the outside are triple-sealed by the O-rings (6), (6) and the packing (21), the O-ring (6) is attached after the perforating device (1) is attached. , (6), leakage to the outside can be prevented by the packing (21) sandwiched between the main body (2) and the cap (17). Also, if leakage occurs,
Leakage can be very slightly suppressed. Here, when the tip of the opening of the cap (17) and the main body (2) are welded, leakage can be more reliably prevented.

又、上記実施例において、本体(2)の開口(8)に
バルブ(22)を予め取付けた穿孔装置(1)について説
明したが、バルブ(22)を介さずに開口(8)に水素ガ
ス放出装置を例えば配管接続した穿孔装置(1)を側壁
(25)に固定して孔あけ作業を行った場合にも、作業時
間を大幅に短縮することができる。さらに、上記不凝縮
ガスタンクに限らず、吸収冷凍機、吸収ヒートポンプな
どの真空容器、或いは水道配管に設けられた加圧容器等
の容器間の液移動、容器からの液の抽出、容器への液の
注入のための孔あけ作業に上記穿孔装置(1)を使用す
ることによって、真空状態或いは加圧状態を破壊せず孔
あけ作業を行うことができ、上記実施例と同様に作業時
間を大幅に短縮することができる。
Further, in the above embodiment, the perforating apparatus (1) in which the valve (22) is previously attached to the opening (8) of the main body (2) has been described, but the hydrogen gas is supplied to the opening (8) without passing through the valve (22). Even when the drilling operation is performed by fixing the punching device (1) to which the discharge device is connected to the pipe to the side wall (25), the operation time can be greatly reduced. Furthermore, not only the above-mentioned non-condensable gas tank, but also liquid transfer between containers such as a vacuum container such as an absorption refrigerator or an absorption heat pump, or a pressurized container provided in a water supply pipe, extraction of a liquid from the container, and liquid transfer to the container By using the above-mentioned drilling device (1) for the drilling operation for injecting water, the drilling operation can be performed without breaking the vacuum state or the pressurized state, and the working time can be greatly reduced as in the above embodiment. Can be shortened.

(ト)発明の効果 本発明は以上のように構成された穿孔装置であり、ド
リルと、このドリルが挿通される貫通孔をもった筒状の
本体とからなり、この本体は前記貫通孔に設けられたド
リルの挿通と回転とを自在にしつつ気密に支持するシー
ル部材と、このシール部材とドリルの先端側の貫通孔の
開口との間において貫通孔と貫通する開口とを備えてい
るので、吸収冷凍機などの真空容器又は加圧容器などに
孔をあけるとき、この穿孔装置の本体を容器に固定し、
真空状態或は加圧状態を破壊せずに孔あけ作業を行うこ
とができる。又、孔あけ作業後はドリルが本体に取り付
けられた状態で即ちドリルを取り外すことなくキャップ
を本体に取り付けるのみで、この作業を終了することに
なり、この結果、作業時間を大幅に短縮することができ
る。又、真空状態の破壊によって容器の腐食が進行する
ことを回避することができる。
(G) Effects of the Invention The present invention is a drilling device configured as described above, and includes a drill and a cylindrical main body having a through hole through which the drill is inserted. Since there is provided a seal member for hermetically supporting the provided drill while allowing the insertion and rotation of the drill freely, and an opening penetrating between the seal member and the opening of the through hole on the tip side of the drill. When drilling holes in a vacuum container or a pressurized container such as an absorption refrigerator, fix the main body of this perforator to the container,
The drilling operation can be performed without breaking the vacuum state or the pressurized state. After the drilling operation, the operation is completed only by attaching the cap to the main body without removing the drill while the drill is mounted on the main body. As a result, the operation time is greatly reduced. Can be. Further, it is possible to prevent the corrosion of the container from progressing due to the breaking of the vacuum state.

又、本体に形成されて貫通孔と連通する開口にバルブ
を本体に取付けておくことにより、本体の容器への固定
作業及びドリルによる孔あけ作業の終了後、バルブを利
用して管、水素ガス放出装置、或いは圧力計などを接続
することができ、この結果、さらに、作業時間を短縮す
ることができる。
Also, by attaching a valve to the main body at an opening formed in the main body and communicating with the through hole, after completion of the fixing work of the main body to the container and the drilling work by the drill, the valve is used to make the pipe, hydrogen gas. A discharge device, a pressure gauge or the like can be connected, so that the working time can be further reduced.

【図面の簡単な説明】[Brief description of the drawings]

第1図は本発明の一実施例を示した穿孔装置の要部切欠
断面図、第2図は第1図に示した穿孔装置の本体の縦断
面図である。 (1)……穿孔装置、(2)……本体、(3)……ドリ
ル、(4)……貫通孔、(5),(5)……溝、(6)
……Oリング(シール部材)、(8)……開口、(22)
……バルブ。
FIG. 1 is a cutaway sectional view of a main part of a drilling device showing an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of a main body of the drilling device shown in FIG. (1) Drilling device (2) Body (3) Drill (4) Through hole (5), (5) Groove (6)
O-ring (seal member), (8) Opening, (22)
……valve.

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】ドリルと、このドリルが挿通される貫通孔
を底部にもった有底筒状の本体とからなり、この本体の
貫通孔には前記ドリルの挿通と回転とを自在にさせつつ
気密に支持するシール部材と、このシール部材の先端側
にある貫通孔の開口との間において貫通孔に連通する開
口とを備え、且つこの有底筒状の本体の底部にはこの底
部から吐出したドリルの平滑部を覆うキャップが取りつ
けられていることを特徴とする穿孔装置。
The present invention comprises a drill and a cylindrical body having a bottom having a through hole through which the drill is inserted. The through hole of the body allows the drill to be freely inserted and rotated. An opening communicating with the through-hole is provided between the sealing member for hermetically supporting and the opening of the through-hole on the tip side of the sealing member, and the bottom of the bottomed cylindrical main body is discharged from the bottom. A drilling device, wherein a cap for covering a smooth portion of a drill is attached.
【請求項2】ドリルと、このドリルが挿通される貫通孔
を底部にもった有底筒状の本体とからなり、この本体の
貫通孔には前記ドリルの挿通と回転とを自在にさせつつ
気密に支持するシール部材と、このシール部材の先端側
にある貫通孔の開口との間において貫通孔に連通する開
口とを備え、この開口にはバルブが取り付けられると共
に、且つこの有底筒状の本体の底部にはこの底部から吐
出したドリルの平滑部を覆うキャップが取りつけられて
いることを特徴とする穿孔装置。
2. A drill comprising: a drill; and a cylindrical body having a bottom having a through hole through which the drill is inserted. The through hole of the body allows the drill to be freely inserted and rotated. A sealing member for hermetically supporting, and an opening communicating with the through-hole between the opening of the through-hole on the tip side of the sealing member, and a valve attached to the opening; A drilling device, characterized in that a cap for covering a smooth portion of a drill discharged from the bottom is attached to a bottom portion of the body.
JP2252365A 1990-09-20 1990-09-20 Perforator Expired - Lifetime JP2573090B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2252365A JP2573090B2 (en) 1990-09-20 1990-09-20 Perforator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2252365A JP2573090B2 (en) 1990-09-20 1990-09-20 Perforator

Publications (2)

Publication Number Publication Date
JPH04129608A JPH04129608A (en) 1992-04-30
JP2573090B2 true JP2573090B2 (en) 1997-01-16

Family

ID=17236284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2252365A Expired - Lifetime JP2573090B2 (en) 1990-09-20 1990-09-20 Perforator

Country Status (1)

Country Link
JP (1) JP2573090B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4664349B2 (en) * 2007-12-04 2011-04-06 株式会社水道技術開発機構 Pipe drilling machine and pipe drilling method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5147992U (en) * 1974-10-09 1976-04-09
JPS63197007U (en) * 1987-06-10 1988-12-19

Also Published As

Publication number Publication date
JPH04129608A (en) 1992-04-30

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