JPH0711696A - Joint structure and connecting method for pipeline by use of the structure - Google Patents
Joint structure and connecting method for pipeline by use of the structureInfo
- Publication number
- JPH0711696A JPH0711696A JP14784293A JP14784293A JPH0711696A JP H0711696 A JPH0711696 A JP H0711696A JP 14784293 A JP14784293 A JP 14784293A JP 14784293 A JP14784293 A JP 14784293A JP H0711696 A JPH0711696 A JP H0711696A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- main pipe
- opening
- insertion tube
- wall surface
- 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
Landscapes
- Sewage (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は主管の壁面に形成した
開口に支管を連通させる継手構造に関し、さらに、この
継手構造を使用する管路の接続工法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure for connecting a branch pipe to an opening formed in a wall surface of a main pipe, and further relates to a pipe connecting method using the joint structure.
【０００２】[0002]
【従来の技術】以下、図４、図５を参考にして説明す
る。一般に、家庭内からの汚水、排水は屋内配管系を通
して敷地内の排水ます３に一度集められた後、ここから
さらに斜め下に傾けられた排水管（以下、支管２とす
る）を通って敷地外の地中に埋設された下水管（以下、
主管１とする）に排出されている。例えば、新築・改築
などによって、この様な支管２を既に埋設されている主
管１に接続する場合、従来は次のような方法によってい
た。2. Description of the Related Art A description will be given below with reference to FIGS. In general, sewage and drainage from homes are collected once through the indoor piping system in the drainage basin 3 on the premises, and then through the drainage pipe (hereinafter referred to as branch pipe 2) that is inclined further downward from here. A sewer pipe buried in the outside ground (hereinafter,
It is discharged to the main pipe 1). For example, when connecting such a branch pipe 2 to the already buried main pipe 1 by new construction or remodeling, the following method has been conventionally used.
【０００３】即ち、主管１と支管２との接続位置上部の
地面を主管１の下側まで大きく掘り下げて、支管２との
接続部位における主管１の壁面の全周を露出させた後、
ホールソーで主管１の壁面の所望位置に支管２と同径の
開口を穿孔する。そして、図５に示す継手構造４の一端
に形成されたフランジ５の裏側に接着剤を塗布して接着
した後、番線（＃１０程度）をフランジ５と主管１の壁
面に巻回してフランジ５を圧着・仮固定し、さらに継手
構造４と支管２をカラー（図示せず）などにより接続
し、この後、埋戻作業を行い埋設していた。That is, the ground above the connecting position between the main pipe 1 and the branch pipe 2 is largely dug down to the lower side of the main pipe 1 to expose the entire circumference of the wall surface of the main pipe 1 at the connection portion with the branch pipe 2,
An opening having the same diameter as the branch pipe 2 is bored at a desired position on the wall surface of the main pipe 1 with a hole saw. Then, after applying an adhesive to the back side of the flange 5 formed at one end of the joint structure 4 shown in FIG. 5 to adhere the same, a number wire (about # 10) is wound around the flange 5 and the wall surface of the main pipe 1 to form the flange 5. Was crimped / temporarily fixed, and the joint structure 4 and the branch pipe 2 were connected by a collar (not shown) or the like, and then backfilling work was performed to bury.
【０００４】[0004]
【発明が解決しようとする課題】一般的に、各屋内配管
系からの排水は下方への傾斜による自然流によって主管
１に流れ込むようになっているため、通常、主管１は地
中約１．２ｍ以上の深さに埋設される。従って、主管１
に支管２を取り付ける際、番線による巻回作業のために
主管１の壁面全周を露出させる掘削作業は非常に負担の
大きいものであった。また、この巻回作業そのものも煩
雑なものであった。Generally, since the drainage from each indoor piping system flows into the main pipe 1 by a natural flow due to the downward inclination, the main pipe 1 is usually about 1. It is buried at a depth of 2m or more. Therefore, the main pipe 1
When attaching the branch pipe 2 to the, the excavation work for exposing the entire circumference of the wall surface of the main pipe 1 due to the winding work with the number wire was very heavy. Further, this winding work itself is complicated.
【０００５】例えば仮に、番線による巻回作業を行なわ
ない場合、継手構造のフランジを主管１の壁面に充分に
圧着させるためには、人手による圧着や粘着テープ等に
よる仮固定が必要となり、さらには、接着剤が硬化する
までは次の作業に移れず時間的にもロスが大きく好まし
くない。そして、この様な欠点は、番線による圧着力が
期待できない壁面が平面からなる暗渠のような形状のも
のに支管２を取付ける場合も同様である。[0005] For example, if the work of winding with a number wire is not performed, in order to sufficiently crimp the flange of the joint structure to the wall surface of the main pipe 1, manual crimping or temporary fixing with an adhesive tape or the like is required. However, until the adhesive is cured, the next work cannot be started and the loss is large in terms of time, which is not preferable. And, such a drawback is also the same when the branch pipe 2 is attached to the one having a shape like an underdrain whose wall surface is a flat surface where the crimping force by the wire is not expected.
【０００６】本発明は、上記のような問題点を鑑みなさ
れたもので、番線の巻回作業のような煩雑な別途の圧着
・仮固定作業の必要がなく、従って、埋設された主管と
支管を接続する場合に、主管全周を掘り起こす必要がな
く、掘削作業及び埋戻作業の軽減及び工期の短縮が図れ
る継手構造及びそれを使用する管路の接続工法を提供す
ることを目的としている。The present invention has been made in view of the above problems, and does not require a complicated separate crimping / temporary fixing work such as a winding wire winding work. Therefore, the buried main pipe and branch pipe are not required. It is an object of the present invention to provide a joint structure that does not need to dig up the entire circumference of the main pipe when connecting pipes, can reduce excavation work and backfill work, and can shorten the construction period, and a pipe line connection construction method using the joint structure.
【０００７】[0007]
【課題を解決するための手段】この発明に係る継手構造
は、上記の目的を達成するために、主管の壁面に形成し
た開口へ支管を接続する継手構造において、一端部に開
口内に挿入されて該開口の縁部と係合する係止片が形成
され、且つ外周面にねじ山が形成された支管接続用の内
挿管と、内挿管に外挿された状態で、一端部周縁に形成
されたフランジを主管の壁面へ接着剤を介して密着させ
た外挿管と、外挿管から露呈した内挿管のネジ山へ螺合
されて外挿管の他端部を主管側へ押圧すると共に内挿管
を引き寄せるナット部材とから成っている。In order to achieve the above object, a joint structure according to the present invention is inserted into an opening at one end in a joint structure for connecting a branch pipe to an opening formed in a wall surface of a main pipe. Is formed on the peripheral edge of one end in a state in which a locking piece that engages with the edge portion of the opening is formed and a thread is formed on the outer peripheral surface, The external insertion tube, in which the formed flange is adhered to the wall surface of the main pipe with an adhesive, is screwed to the thread of the internal insertion pipe exposed from the external insertion pipe to press the other end of the external insertion pipe to the main pipe side and the internal insertion pipe. It is made up of a nut member that pulls in.
【０００８】そして前記の構成に加え、内挿管の係止片
が突設された一端部には複数の切欠が更に設けられ、内
挿管が縮径されることによって開口に挿入されるように
成っている。In addition to the above construction, a plurality of notches are further provided at one end where the locking piece of the insertion tube is provided so as to be inserted into the opening by reducing the diameter of the insertion tube. ing.
【０００９】また、この発明に係る管路の接続工法は、
埋設された主管に支管を連通させる管路の接続工法にお
いて、主管周壁の所望する開口位置側だけを掘り起こし
て露出させ、請求項１又は２の継手構造を使用して接続
するものとしている。なお、ここで言う主管とは円筒状
のものだけではなく、断面が方形でなる、壁面が平面か
らなるものも含むものである。Also, the pipe line connecting method according to the present invention is
In the method for connecting a conduit to connect the branch pipe to the buried main pipe, only the desired opening position side of the main pipe peripheral wall is dug up and exposed, and the joint structure of claim 1 or 2 is used for connection. The main pipe mentioned here includes not only a cylindrical pipe but also a pipe having a rectangular cross section and a flat wall surface.
【００１０】[0010]
【作用】本発明は、以上のように構成されているので、
内挿管に螺合されたナット部材を締めつけることにより
外挿管のフランジを主管の壁面に圧着させることがで
き、番線の巻回作業などによる別途の煩雑な圧着作業を
必要としない。Since the present invention is constructed as described above,
The flange of the outer insertion pipe can be crimped to the wall surface of the main pipe by tightening the nut member screwed to the inner insertion pipe, and a separate and complicated crimping work such as winding wire is not required.
【００１１】さらに、内挿管の係止片と外挿管のフラン
ジで開口の縁部を挟持するので、継手構造を充分に固着
させることができ、接着剤の硬化を待たずに次の工程、
例えば埋戻作業などに移ることができる。Furthermore, since the edge of the opening is sandwiched by the locking piece of the inner insertion tube and the flange of the outer insertion tube, the joint structure can be sufficiently fixed, and the next step without waiting for the adhesive to harden,
For example, it is possible to shift to backfilling work.
【００１２】また、埋設された主管に継手構造を取り付
ける場合に、番線の巻回作業を必要としないため主管の
全周を堀り起こさずに主管の開口近傍だけを掘り起こせ
ば支管を接続でき、その結果、掘削作業及び埋戻作業の
軽減が図れる。Further, when attaching the joint structure to the buried main pipe, winding work of the wire is not required, so that the branch pipe can be connected by excavating only the vicinity of the opening of the main pipe without excavating the entire circumference of the main pipe, As a result, excavation work and backfill work can be reduced.
【００１３】[0013]
【実施例】以下、本発明の好適な実施例を図１、図２に
基づいて説明する。なお、従来と共通する部分には同一
の符合を付し、重複する説明は省略する。本実施例の継
手構造１６は内挿管８、外挿管１２、ナット部材１４か
ら構成されている。そして、支管２が接続される主管１
の壁面には後述する内挿管８の外径と同径の開口７がホ
ールソー（図示せず）により穿孔されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to FIGS. In addition, the same parts as those of the related art will be denoted by the same reference numerals, and overlapping description will be omitted. The joint structure 16 of this embodiment includes an inner insertion tube 8, an outer insertion tube 12, and a nut member 14. And the main pipe 1 to which the branch pipe 2 is connected
An opening 7 having the same diameter as the outer diameter of an inner insertion tube 8 described later is bored on the wall surface of the hole by a hole saw (not shown).
【００１４】内挿管８は中空の円筒状で、一端は平面で
切断された断面となっており、他端は主管１の壁面の曲
率と同じ円柱周壁面で切断された断面形状となってい
る。そして、この他端側の壁面途中から管軸方向に外周
縁に至って複数の切欠９が形成され、即ち、この切欠９
によって内挿管８の外周縁は複数に分割された形状を呈
している。The insertion tube 8 is a hollow cylindrical shape, one end of which has a cross section cut by a flat surface, and the other end of which has a cross sectional shape cut by a cylindrical peripheral wall surface having the same curvature as the wall surface of the main pipe 1. . A plurality of notches 9 are formed from the middle of the wall surface on the other end side to the outer peripheral edge in the pipe axis direction, that is, the notches 9 are formed.
Thus, the outer peripheral edge of the insertion tube 8 has a shape divided into a plurality of pieces.
【００１５】そして、分割された外周縁の各端部には開
口７に挿入されて開口７の縁部の裏側に係止する係止片
１０が複数形成されている。これら係止片１０は切欠９
によってそれぞれ分割され独立しているが、全体として
は、主管１の壁面内側に密着するようなフランジの形状
を呈している。さらに、内挿管８の外周壁には後述する
ナット部材１４が螺合するネジ山１１が形成されてい
る。このネジ山１１は支管２との接続部分以外全てに形
成されていてもよいが、この例では内挿管８の管軸方向
の略中央部分のみとしている。A plurality of locking pieces 10 that are inserted into the opening 7 and lock on the back side of the edge of the opening 7 are formed at each end of the divided outer peripheral edge. These locking pieces 10 are notches 9
Although each of them is divided and independent of each other, as a whole, it has a shape of a flange that comes into close contact with the inside of the wall surface of the main pipe 1. Further, on the outer peripheral wall of the insertion tube 8, a screw thread 11 with which a nut member 14 described later is screwed is formed. The thread 11 may be formed on all but the connecting portion with the branch pipe 2, but in this example, it is only on the substantially central portion in the pipe axis direction of the insertion pipe 8.
【００１６】外挿管１２は内挿管８に外挿され、ネジ山
１１部分の外径と同一の内径を有し、長さは内挿管８に
外挿した時にネジ山１１が露呈する程度となっている。
外挿管１２の一端は平面で切断された断面となってお
り、他端は主管１の壁面の曲率と同じ円柱周壁面で切断
された断面形状となっている。この他端には主管１の壁
面に密着するフランジ１３が形成されており、このフラ
ンジ１３の裏側に接着剤を塗布し主管１に接着するよう
になっている。なお、図２中の点線は下水面を示してい
る。The outer insertion tube 12 is externally inserted into the inner insertion tube 8 and has the same inner diameter as the outer diameter of the screw thread 11 portion, and the length is such that the screw thread 11 is exposed when it is externally inserted into the insertion tube 8. ing.
One end of the extrapolation tube 12 has a cross section cut by a flat surface, and the other end has a cross sectional shape cut by a cylindrical peripheral wall surface having the same curvature as the wall surface of the main tube 1. A flange 13 is formed on the other end of the flange 13 so as to be in close contact with the wall surface of the main pipe 1, and an adhesive is applied to the back side of the flange 13 to adhere the main pipe 1. The dotted line in FIG. 2 indicates the sewage surface.
【００１７】さらに、ナット部材１４は前記ネジ山１１
に螺合するもので、パッキン１５を介して外挿管１２の
一端に当接しており、これを回転することにより外挿管
１２を押圧してフランジ１３を主管１の壁面に密着させ
ると共に、その反力で係止片１０を引き寄せて開口７の
縁部を主管１の内側から押圧する。この結果、開口７の
縁部はフランジ１３と係止片１０との間で挟持されるよ
うになっている。Further, the nut member 14 has the thread 11
It is in contact with one end of the outer insertion tube 12 via the packing 15, and by rotating this, the outer insertion tube 12 is pressed to bring the flange 13 into close contact with the wall surface of the main tube 1, and The locking piece 10 is pulled by force to press the edge of the opening 7 from the inside of the main pipe 1. As a result, the edge of the opening 7 is sandwiched between the flange 13 and the locking piece 10.
【００１８】次に、上記のような継手構造１６をすでに
埋設された主管１に支管２を連通させる接続工法につい
て具体的に説明する。即ち、主管１と支管２との接続位
置上部の地面を主管１の壁面の支管２との接続部位まで
掘り下げて壁面の一部だけを露出させた後、ホールソー
で主管１の壁面に支管２と同径の開口７を穿孔する。そ
して、内挿管８の係止片１０を、切欠９を狭めることに
より内挿管８を縮径せしめて開口７に嵌入する。する
と、開口７に嵌入した係止片１０は、内挿管８の弾性力
によって開口７の裏側縁部に係止され、内挿管８は開口
７から抜けない状態となる。Next, the connecting method for connecting the branch pipe 2 to the main pipe 1 in which the joint structure 16 as described above is already buried will be specifically described. That is, the ground above the connection position between the main pipe 1 and the branch pipe 2 is dug down to the connection part of the wall surface of the main pipe 1 with the branch pipe 2 to expose only a part of the wall surface, and then the branch pipe 2 is connected to the wall surface of the main pipe 1 with a hole saw. An opening 7 having the same diameter is drilled. Then, the locking piece 10 of the insertion tube 8 is fitted into the opening 7 by reducing the diameter of the insertion tube 8 by narrowing the notch 9. Then, the locking piece 10 fitted into the opening 7 is locked to the back side edge of the opening 7 by the elastic force of the insertion tube 8, and the insertion tube 8 is in a state of not coming off from the opening 7.
【００１９】次に、外挿管１２のフランジ１３の裏側に
従来から埋設配管に用いられる充填型接着剤を所定量塗
布した後、外挿管１２を内挿管８に挿入し、ナット部材
１４をパッキン１５を介してネジ山１１に螺合、回転さ
せ外挿管１２の一端を押圧し、フランジ１３を主管１の
壁面に密着させる。すると、その反力で係止片１０が開
口７の縁部を主管１の内側から押圧し、主管１の壁面は
フランジ１３と係止片１０との間で挟持されて継手構造
１６が主管１に取り付けられる。しかる後、カラー（図
示せず）などにより内挿管８の端部と支管２を接続し、
掘削部分に土砂を埋戻して埋設するものである。Next, after a predetermined amount of a filling type adhesive which has been conventionally used for buried pipes is applied to the back side of the flange 13 of the outer insertion tube 12, the outer insertion tube 12 is inserted into the inner insertion tube 8 and the nut member 14 is packed with the packing 15. The screw thread 11 is screwed through and rotated to press one end of the outer insertion tube 12 to bring the flange 13 into close contact with the wall surface of the main tube 1. Then, the locking piece 10 presses the edge of the opening 7 from the inside of the main pipe 1 by the reaction force, the wall surface of the main pipe 1 is sandwiched between the flange 13 and the locking piece 10, and the joint structure 16 becomes the main pipe 1. Attached to. Then, connect the end of the insertion tube 8 and the branch tube 2 with a collar (not shown),
The excavated part is backfilled with earth and sand.
【００２０】なお、上記実施例以外にも、例えば図３に
示すように、内挿管８の両端の断面形状を平面で切断さ
れた形状とし、複数の切欠９は形成せずに２つの係止片
１７と嵌入脚１８を形成し、内挿管８を弾性変形させる
ことによって、両係止片１７を主管１の管軸方向に位置
するように開口７に係止させてもよい。In addition to the above-described embodiment, as shown in FIG. 3, for example, the cross-sectional shape of both ends of the insertion tube 8 is a shape cut by a flat surface, and a plurality of notches 9 are not formed, and two locking portions are provided. By forming the piece 17 and the fitting leg 18 and elastically deforming the insertion tube 8, both the locking pieces 17 may be locked in the opening 7 so as to be located in the tube axis direction of the main tube 1.
【００２１】また、上記実施例では主管１のような円筒
管の壁面に継手構造１６を取り付ける場合について説明
したが、本発明の継手構造はこれに限られず、係止片１
０とフランジ１３を適宜変更して例えば平面に密着する
形状としてもよい。このようにした場合には、番線によ
る巻回が不可能又は困難な非常に大きな曲率を持つ貯蔵
タンク、さらに巻回作業が可能であっても番線による圧
着力が期待できない壁面が平面からなる暗渠のような形
状のものにも使用可能である。In the above embodiment, the case where the joint structure 16 is attached to the wall surface of the cylindrical pipe such as the main pipe 1 has been described, but the joint structure of the present invention is not limited to this, and the locking piece 1 is used.
0 and the flange 13 may be appropriately changed to have a shape in which they are in close contact with a flat surface, for example. In this case, a storage tank having a very large curvature in which winding with a number wire is impossible or difficult, and a culvert with a flat wall surface where the winding force can be expected but the pressure force of the number line cannot be expected. It can also be used for the shape.
【００２２】[0022]
【発明の効果】この発明は、以上説明してきた如き内容
のものであって、本発明によれば、番線の巻回作業のよ
うな繁雑な別途の圧着作業を必要としないため、工期短
縮を図ることができ、番線の巻回による圧着力が期待で
きない形状の管にも容易に取り付けられるという効果が
ある。The present invention has the contents as described above, and according to the present invention, a complicated and separate crimping work such as a winding work of a number wire is not required, so that the construction period can be shortened. There is an effect that it can be achieved and can be easily attached to a pipe having a shape in which a crimping force due to winding of a wire is not expected.
【００２３】また、埋設された主管に取り付ける場合
に、番線の巻回作業を必要としないため主管の全周を堀
り起こさなくてもよく、その結果、掘削作業及び埋戻作
業の軽減が図れる。Further, when mounting on the buried main pipe, winding wire work is not required, so that it is not necessary to dig up the entire circumference of the main pipe, and as a result, excavation work and backfill work can be reduced. .
【図１】本発明の一実施例に係る継手構造の分解図であ
る。FIG. 1 is an exploded view of a joint structure according to an embodiment of the present invention.
【図２】図１の継手構造の断面図である。2 is a cross-sectional view of the joint structure of FIG.
【図３】本発明の他の実施例に係る継手構造の内挿管を
示す斜視図である。FIG. 3 is a perspective view showing an insertion tube of a joint structure according to another embodiment of the present invention.
【図４】主管と支管の配管状態を説明する概略図であ
る。FIG. 4 is a schematic diagram illustrating a piping state of a main pipe and a branch pipe.
【図５】従来の継手構造を示す斜視図である。FIG. 5 is a perspective view showing a conventional joint structure.
１ 主管 ２ 支管 ７ 開口 ８ 内挿管 ９ 切欠 １０ 係止片 １１ ネジ山 １２ 外挿管 １３ フランジ １４ ナット部材 １５ パッキン １６ 継手構造 1 Main Pipe 2 Branch Pipe 7 Opening 8 Internal Insertion Pipe 9 Notch 10 Locking Piece 11 Screw Thread 12 External Insertion Pipe 13 Flange 14 Nut Member 15 Packing 16 Joint Structure
Claims (3)
する継手構造において、 一端部に開口内に挿入されて該開口の縁部と係合する係
止片が形成され、且つ外周面にネジ山が形成された支管
接続用の内挿管と、 内挿管に外挿された状態で、一端部周縁に形成されたフ
ランジを主管の壁面へ接着剤を介して密着させた外挿管
と、 外挿管から露呈した内挿管のネジ山へ螺合されて、外挿
管の他端部を主管側へ押圧すると共に内挿管を引き寄せ
るナット部材と、から成ることを特徴とする継手構造。1. A joint structure for connecting a branch pipe to an opening formed in a wall surface of a main pipe, wherein a locking piece which is inserted into the opening at one end and engages with an edge of the opening is formed, and an outer peripheral surface is formed. An internal insertion tube for threading a branch pipe, and an external insertion tube in which a flange formed on the peripheral edge of one end is adhered to the wall surface of the main pipe with an adhesive while the external insertion pipe is inserted into the internal insertion pipe. A joint structure comprising: a nut member that is screwed into a thread of the insertion tube exposed from the insertion tube to press the other end of the insertion tube toward the main tube and pull the insertion tube.
複数の切欠が更に設けられ、内挿管が縮径されることに
よって開口に挿入される請求項１に記載の継手構造。2. The joint structure according to claim 1, wherein a plurality of notches are further provided at one end where the locking piece of the insertion tube is projected, and the insertion tube is inserted into the opening by reducing the diameter. .
の接続工法において、主管壁面の所望する開口位置近傍
だけを掘り起こして露出させ、請求項１又は２の継手構
造を使用して接続することを特徴とする管路の接続工
法。3. A pipe connecting method for connecting a branch pipe to a buried main pipe, by excavating and exposing only the vicinity of a desired opening position of a main pipe wall surface, and connecting using the joint structure according to claim 1 or 2. This is a method for connecting pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14784293A JPH07122282B2 (en) | 1993-06-18 | 1993-06-18 | Joint structure and pipe connecting method using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14784293A JPH07122282B2 (en) | 1993-06-18 | 1993-06-18 | Joint structure and pipe connecting method using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0711696A true JPH0711696A (en) | 1995-01-13 |
| JPH07122282B2 JPH07122282B2 (en) | 1995-12-25 |
Family
ID=15439492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14784293A Expired - Fee Related JPH07122282B2 (en) | 1993-06-18 | 1993-06-18 | Joint structure and pipe connecting method using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07122282B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100486920B1 (en) * | 2002-02-05 | 2005-05-03 | 태광농자재주식회사 | The divergence tool at water pipe |
| KR100505558B1 (en) * | 2002-05-14 | 2005-08-01 | 곽기표 | The divergent pipe of the water for agricultural |
| JP2017015112A (en) * | 2015-06-29 | 2017-01-19 | 株式会社水研 | Rustproof structure of existing pipe and non-cutoff flow method |
-
1993
- 1993-06-18 JP JP14784293A patent/JPH07122282B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100486920B1 (en) * | 2002-02-05 | 2005-05-03 | 태광농자재주식회사 | The divergence tool at water pipe |
| KR100505558B1 (en) * | 2002-05-14 | 2005-08-01 | 곽기표 | The divergent pipe of the water for agricultural |
| JP2017015112A (en) * | 2015-06-29 | 2017-01-19 | 株式会社水研 | Rustproof structure of existing pipe and non-cutoff flow method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07122282B2 (en) | 1995-12-25 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |