JP2736409B2 - Plastic branch pipe fittings - Google Patents
Plastic branch pipe fittingsInfo
- Publication number
- JP2736409B2 JP2736409B2 JP7260786A JP26078695A JP2736409B2 JP 2736409 B2 JP2736409 B2 JP 2736409B2 JP 7260786 A JP7260786 A JP 7260786A JP 26078695 A JP26078695 A JP 26078695A JP 2736409 B2 JP2736409 B2 JP 2736409B2
- Authority
- JP
- Japan
- Prior art keywords
- joint
- branch pipe
- saddle
- joint body
- pipe
- 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 - Fee Related
Links
- 239000004033 plastic Substances 0.000 title claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 27
- 238000005304 joining Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 description 9
- 238000000465 moulding Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000012778 molding material Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000036544 posture Effects 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、管壁に接合させる
サドル部を有するプラスチック製分岐管継手に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic branch pipe joint having a saddle portion to be joined to a pipe wall.
【０００２】[0002]
【発明が解決しようとする課題】例えば、継手の分岐管
接続方向が相違するだけで、それに対応する継手の成形
金型が必要になる、従来のような、継手本体の成形と同
時にサドル部も一体成形する射出成形による、コストの
高い方法で継手を製造するのを止め、できる限り成形金
型を共用できるような方法で継手を製造する。For example, if only the connecting direction of the branch pipe of the joint is different, a molding die for the joint is required, and the saddle portion is formed simultaneously with the conventional molding of the joint body. Stop manufacturing joints by a high cost method by integral molding, and manufacture joints as much as possible by using a common mold.
【０００３】[0003]
【課題を解決するための手段】従って、継手本体とサド
ル部とを別々に成形加工した後、継手本体とサドル部と
を融着接合させプラスチック製分岐継手を作るもので、
対向する締め付け部をボルトでもって本管に固着するサ
ドル部と、分岐管の管端を差し込む受口を有する継手本
体とを備え、サドル部と継手本体とを融着固定させると
共に、サドル部に埋設する発熱体でもって本管とサドル
部を、また受口に埋設する発熱体でもっ て継手本体と分
岐管とをそれぞれ融着接合させて、本管に分岐管を連通
接続させるものである。Therefore, after the joint body and the saddle part are separately formed and processed, the joint body and the saddle part are fusion-bonded to produce a plastic branch joint .
The bolts are used to secure the opposing fastening parts to the main pipe.
A joint book with a dollar part and a socket into which the pipe end of the branch pipe is inserted
When the saddle part and the joint body are fused and fixed
In both cases, the main pipe and the saddle have a heating element embedded in the saddle.
Part is separated from the joint body by a heating element embedded in the port.
The branch pipe is fused to each other and the main pipe is connected to the branch pipe.
It is to connect .
【０００４】[0004]
【発明の実施の形態】以下本発明の実施の形態を図面に
基づいて詳述する。図１は本発明に係るプラスチック製
分岐管継手の斜視全体図で、この継手は、一端にプラス
チック製の分岐管の管端を差し込むソケット（１ａ）を
設ける管状の継手本体（１）の他端に、分岐管を接合さ
せるプラスチック製の管（以下本管という）の管壁の半
周以上を覆うことができる断面半円又はＣ型のサドル部
（２）を有し、継手本体（１）の内口がサドル部（２）
を貫通してこのサドル部（２）の下面に達している。つ
まり、サドル部（２）の貫通口（２ａ）の表面周囲から
継手本体（１）が分岐方向に立上げれている。またサド
ル部（２）の各端部には本管の外周側でこの半径方向面
内で対向するように一対の平板状の締め付け部（２ｂ）
が設けられると共に、各締め付け部（２ｂ）の略中央部
にはボルト貫通用の孔（２ｃ）が対向して設けられてい
る。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an overall perspective view of a plastic branch pipe joint according to the present invention. This joint is provided with a socket (1a) at one end into which a pipe end of a plastic branch pipe is inserted, and the other end of the tubular joint body (1). The joint body (1) has a semicircular or C-shaped saddle portion (2) capable of covering at least a half circumference of a pipe wall of a plastic pipe (hereinafter referred to as a main pipe) to which a branch pipe is joined. Inner mouth is saddle part (2)
And reaches the lower surface of the saddle portion (2). That is, the joint body (1) rises in the branching direction from around the surface of the through hole (2a) of the saddle portion (2). Each end of the saddle portion (2) has a pair of plate-shaped fastening portions (2b) so as to face each other on the outer peripheral side of the main pipe in the radial plane.
Are provided, and a hole (2c) for bolt penetration is provided substantially at the center of each fastening portion (2b).
【０００５】また、図２は上記継手の断面正面図、図３
は同断面側面図であり、分岐管の外面と接触するソケッ
ト（１ａ）の内面には、電熱線を円柱面に沿ってコイル
状に巻いてスリーブ状に保形した発熱体（３）が埋め込
まれ、本管の外壁面と接触するサドル部（２）下面で貫
通口（２ａ）の周囲には、電熱線を平面に沿ってコイル
状に巻いてマット状に保形した発熱体（４）が彎曲され
て埋め込まれている。さらに、ソケット（１ａ）の端面
又は外周面に、発熱体（３）の電熱線の両端に取り付く
電源用端子（図示省略）が突出して設けられ、サドル部
（２）の端面又は外表面に、発熱体（４）の電熱線の両
端に取り付く電源用端子（図示省略）が突出して設けら
れている。FIG. 2 is a sectional front view of the joint, and FIG.
Is a side view of the same section, and a heating element (3) in which a heating wire is wound in a coil shape along a cylindrical surface and shaped into a sleeve is embedded in the inner surface of the socket (1a) that comes into contact with the outer surface of the branch pipe. On the lower surface of the saddle portion (2) in contact with the outer wall surface of the main pipe, around the through hole (2a), a heating element (4) is formed by winding a heating wire in a coil shape along a plane and keeping the heating wire in a mat shape. Is curved and embedded. Further, on the end face or outer peripheral face of the socket (1a), power supply terminals (not shown) attached to both ends of the heating wire of the heating element (3) are provided so as to protrude, and on the end face or outer surface of the saddle part (2), Power supply terminals (not shown) attached to both ends of the heating wire of the heating element (4) are provided to protrude.
【０００６】上記した継手は図４及び図５に示すように
継手本体（１）とサドル部（２）をそれぞれ別々に成形
加工する各工程と、継手本体（１）とサドル部（２）と
を融着接合させる工程で製造される。As shown in FIGS. 4 and 5, each of the above-mentioned joints separately forms a joint body (1) and a saddle portion (2), and includes a joint body (1) and a saddle portion (2). Is manufactured in a step of fusion bonding.
【０００７】継手本体（１）を製造する方法としては、
熱可塑性樹脂成形材の成形に用いられている射出成形法
で、全体を一体成形する方法、つまり、射出シリンダの
中で熱溶融し、流動化した成形材料を、射出プランジャ
又は射出スクリューによって、スリーブ状の発熱体
（３）を予めインサートして固く閉じた金型の中に圧入
し成形する。又は、上記の射出成形法で、受口（１ａ）
のみを作り、継手本体（１）は、これもまた熱可塑性樹
脂成形材料の成形に用いられている押出成形法で成形、
つまり、押出機中で加熱加圧して流動状態になった成形
材料を、ダイから管状に押出し、冷却後、所定長さに切
断することによって成形し、この継手本体（１）の一端
に受口（１ａ）を熱融着する。又は、受口（１ａ）と継
手本体（１）をそれぞれ別々に押出成形法で成形し（何
れも管状に押出される材料を冷却後所定長さに切断）、
継手本体（１）の一端に受口（１ａ）を熱融着させると
共に、受口（１ａ）の内面にスリーブ状の発熱体（３）
を装着する。方法などが用いられる。As a method of manufacturing the joint body (1),
In the injection molding method used for molding the thermoplastic resin molding material, a method of integrally molding the whole, that is, the heat-melted in the injection cylinder, the fluidized molding material, by the injection plunger or injection screw, the sleeve The heating element (3) is inserted in advance and pressed into a tightly closed mold to be molded. Alternatively, in the above injection molding method, the receiving port (1a)
Only, and the joint body (1) is molded by an extrusion molding method which is also used for molding a thermoplastic resin molding material.
In other words, the molding material heated and pressurized in the extruder into a fluid state is extruded from a die into a tube, cooled, and cut into a predetermined length to form a molding. (1a) is thermally fused. Alternatively, the receiving port (1a) and the joint main body (1) are separately formed by an extrusion molding method (in each case, the material to be extruded into a tube is cooled and cut into a predetermined length).
A receiving port (1a) is thermally fused to one end of the joint body (1), and a sleeve-like heating element (3) is provided on the inner surface of the receiving port (1a).
Attach. A method or the like is used.
【０００８】一方、サドル部（２）を製造する方法とし
ては、上記継手本体（１）と同様に、射出成形法で、成
形と同時にマット状の発熱体（４）をインサートする。
又は、押出成形法で成形し、このサドル部（２）の内面
にマット状の発熱体（４）を装着する。方法などが用い
られる。また、貫通口（２ａ）及び孔（２ｃ）の孔明け
はドリルなどによって、サドル部（２）成形後、この二
次加工で行う場合、継手本体（１）とサドル部（２）を
一体に接合後、継手の仕上げ工程で行う場合、また製造
者は孔明けを行わず、配管作業者が使用前に両方の孔明
けを行う場合と、孔（２ｃ）の孔明けだけを使用前に行
い、配管後に本管の管壁の分岐孔の孔明けと同時に貫通
口（２ａ）の孔明けを行う場合がある。On the other hand, as a method of manufacturing the saddle portion (2), similarly to the joint main body (1), a mat-shaped heating element (4) is inserted simultaneously with molding by injection molding.
Alternatively, it is formed by an extrusion method, and a mat-like heating element (4) is mounted on the inner surface of the saddle portion (2). A method or the like is used. Further, when the through hole (2a) and the hole (2c) are formed by a drill or the like after the saddle portion (2) is formed and this secondary processing is performed, the joint body (1) and the saddle portion (2) are integrally formed. After joining, when performing in the finishing process of the joint, the manufacturer does not perform drilling, the pipe operator performs both drilling before use, and only performs drilling of the hole (2c) before use. After the piping, the through hole (2a) may be made simultaneously with the opening of the branch hole in the pipe wall of the main pipe.
【０００９】なお、マット状の発熱体（４）は基本的に
はサドル部（２）に一体に設けられるが、後述する理由
からサドル部（２）と別に扱うことも可能である。Although the mat-shaped heating element (4) is basically provided integrally with the saddle portion (2), it can be treated separately from the saddle portion (2) for the reasons described later.
【００１０】そして、上記の継手本体（１）とサドル部
（２）を接合する方法としては、継手本体（１）の受口
（１ａ）と反対側の端面を、継手本体（１）の接合角
（α）に応じてサドル部（２）底面に沿う端面形状に切
削（断）加工した後、継手本体（１）の端面をサドル部
（２）表面に接合させた状態で、この接合部の樹脂をガ
スバーナなどによって熱融着又は、これに加え、金属同
士の溶接のように接合部に溶融樹脂を付着させて融着さ
せる。又は、図４及び図５に示すような、前記マット状
の発熱体（４）と同様の構造で、外径が小さいマット状
の発熱体（５）を備え、この発熱体（５）を用いて継手
本体（１）とサドル部（２）を電気融着させる。つま
り、継手本体（１）端面とサドル部（２）表面の間に前
記マット状の発熱体（５）を挾み、且つ、所定の接合圧
力を得るように両者を押付けた状態で、前記発熱体
（５）に通電することによって、継手本体（１）とサド
ル部（２）の接合部の樹脂を加熱溶融させ、これら継手
本体（１）とサドル部（２）を電気融着させる。方法な
どが用いられる。また継手本体（１）とサドル部（２）
の接合にこれらの接合姿勢及び位置を固定するためのジ
グを用いることによって、接合不良や接合姿勢及び位置
の狂いを防止することができる。さらにサドル部（２）
の表面に一条の平坦な面を成形しておくことによって、
継手本体（１）の端面切削（断）形状が湾曲面ではなく
一平面に沿う面でよくなるため、この継手本体（１）の
端面加工が簡単になる。また継手本体（１）とサドル部
（２）のいずれの接合方法においても、継手本体（１）
の接合端部の肉厚が厚くなるので、高い接合強度を得る
ことができる。The joint body (1) and the saddle portion (2) are joined by joining the end face of the joint body (1) opposite to the socket (1a) to the joint body (1). After cutting (cutting) into an end surface shape along the bottom surface of the saddle portion (2) according to the angle (α), the end surface of the joint body (1) is joined to the surface of the saddle portion (2). The resin is thermally fused by a gas burner or the like, and in addition to this, the molten resin is adhered to the joint portion like a welding of metals and fused. Alternatively, as shown in FIGS. 4 and 5, a mat-shaped heating element (5) having a small outer diameter and the same structure as the mat-shaped heating element (4) is used. The joint body (1) and the saddle part (2) are electrically fused. In other words, the mat-like heating element (5) is sandwiched between the end face of the joint body (1) and the surface of the saddle section (2), and the heating is performed in a state where both are pressed so as to obtain a predetermined joining pressure. By energizing the body (5), the resin at the joint between the joint body (1) and the saddle portion (2) is heated and melted, and the joint body (1) and the saddle portion (2) are electrically fused. A method or the like is used. In addition, the joint body (1) and saddle part (2)
By using a jig for fixing these joining postures and positions in the joining, it is possible to prevent poor joining and misalignment of the joining postures and positions. Further saddle part (2)
By forming a single flat surface on the surface of
Since the end cut (cut) shape of the joint body (1) is not a curved surface but a plane along one plane, the end face processing of the joint body (1) is simplified. Also, in any of the joining methods of the joint body (1) and the saddle portion (2), the joint body (1)
Since the thickness of the joining end portion of the substrate becomes large, high joining strength can be obtained.
【００１１】上記したように、継手本体（１）とサドル
部（２）をそれぞれ別々に成形加工した後で、これら継
手本体（１）とサドル部（２）を融着接合させる方法で
継手を製造することによって、継手本体（１）とサドル
部（２）をそれぞれ同じ金型で成形しても、継手本体
（１）とサドル部（２）の接合角度（α）を適宜変換す
ることによって、分岐管接続方向が相違する数種のプラ
スチック製分岐管継手を製造することができる。つま
り、分岐管接続方向が相違する数種のプラスチック製分
岐管継手が一種類の金型で製造可能となる。さらに形
状、大きさが相違する継手本体（１）及びサドル部
（２）の組合せも自由に行えるので、従来に比べて少な
い金型で全種類の継手が製造可能となる。As described above, after the joint body (1) and the saddle portion (2) are separately formed and processed, the joint is joined by a method of fusing and joining the joint body (1) and the saddle portion (2). By manufacturing, even if the joint body (1) and the saddle part (2) are respectively formed by the same mold, the joint angle (α) of the joint body (1) and the saddle part (2) is appropriately changed. Thus, several types of plastic branch pipe joints having different branch pipe connection directions can be manufactured. That is, several types of plastic branch pipe joints having different branch pipe connection directions can be manufactured with one type of mold. Furthermore, since the joint body (1) and the saddle portion (2) having different shapes and sizes can be freely combined, all kinds of joints can be manufactured with a smaller number of molds than in the past.
【００１２】上記のように製造されたプラスチック製分
岐管継手は、図６及び図７に示すように、プラスチック
製の本管（６）の分岐部に継手のサドル部（２）を嵌着
し、分岐方向に継手本体（１）を向け、この状態で、締
め付け部（２ｂ）をボルト（８）とナット（９）で締め
付け、本管（６）にサドル部（２）を仮止めする。この
後、マット状発熱体（４）に通電し、本管（６）外壁面
とサドル部（２）内面の樹脂を加熱溶融させ、これら本
管（６）とサドル部（２）を電気融着させる。そして、
継手本体（１）の受口（１ａ）及びサドル部（２）の貫
通口（２ａ）からドリルや孔明け工具を挿入して本管
（６）の壁面に分岐口（１０）を開設した後、この継手
本体（１）の受口（１ａ）にプラスチック製の分岐管
（７）の管端を差し込み、スリーブ状の発熱体（３）に
通電し、分岐管（７）外面と受口（１ａ）内面の樹脂を
加熱溶融させ、これら分岐管（７）と受口（１ａ）を電
気融着させる。これによって、本管（６）の管壁に分岐
管（７）の管端が継手によって接合される。またこれら
各管（６）（７）は上下水道やガスの配管として用いら
れている。As shown in FIGS. 6 and 7, the plastic branch pipe joint manufactured as described above has a saddle part (2) fitted to a branch part of a plastic main pipe (6). The joint body (1) is directed in the branching direction, and in this state, the fastening portion (2b) is fastened with the bolt (8) and the nut (9), and the saddle portion (2) is temporarily fixed to the main pipe (6). Thereafter, the mat-shaped heating element (4) is energized to heat and melt the resin on the outer wall surface of the main tube (6) and the inner surface of the saddle portion (2), and the main tube (6) and the saddle portion (2) are electrically melted. To wear. And
After opening a branch port (10) in the wall of the main pipe (6) by inserting a drill or a drilling tool from the socket (1a) of the joint body (1) and the through port (2a) of the saddle section (2) Then, the pipe end of the plastic branch pipe (7) is inserted into the socket (1a) of the joint body (1), and electricity is supplied to the sleeve-shaped heating element (3), so that the outer surface of the branch pipe (7) and the socket ( 1a) The resin on the inner surface is heated and melted, and the branch pipe (7) and the receiving port (1a) are electrically fused. Thereby, the pipe end of the branch pipe (7) is joined to the pipe wall of the main pipe (6) by the joint. These pipes (6) and (7) are used as water and sewerage pipes and gas pipes.
【００１３】なお、ボルト（８）及び（９）による継手
の仮止めは、本管と分岐管接合後に解くことができ、さ
らにはサドル部（２）の各締め付け部（２ｂ）を切断除
去し、本管の管壁からの余分な張出しを取り除くことも
行える。[0013] The temporary fixing of the joint by the bolts (8) and (9) can be released after the main pipe and the branch pipe are joined, and furthermore, the fastening parts (2b) of the saddle part (2) are cut and removed. Also, it is possible to remove excess overhang from the pipe wall of the main pipe.
【００１４】また、上記のように既に製品化されたプラ
スチック製分岐管継手を用いて、本管（６）に分岐管
（７）を接合させる場合の他に、本発明では分解状態の
プラスチック製分岐管継手を、配管作業者がその現場で
分岐管接続方向に応じて継手本体（１）とサドル部
（２）を融着接合させることもでき、規格にない継手を
容易に作ることができ、現場施工を基本とする配管作業
への対応性に優れる。また、この際サドル部（２）が本
管（６）の管壁を半分以上を覆う形状で、且つ、本管
（６）への締め付け機能を持っていることから、サドル
部（２）に予めマット状の発熱体（４）を装着していな
い場合でも、このマット状の発熱体（４）を間に挾んだ
状態で本管（６）にサドル部（２）を仮止めすることに
よって、これら本管（６）とサドル部（２）の電気融着
を適正に行うことができる。また継手本体（１）とサド
ル部（２）の接合をマット状の発熱体（５）を用いて電
気融着で行うことにより、継手の製造がより簡単になる
と共に、特に現場での組立性がよくなる。In addition to the case where the branch pipe (7) is joined to the main pipe (6) using the plastic branch pipe joint which has already been commercialized as described above, the present invention also provides a disassembled plastic branch pipe. The branch pipe joint can be welded by the piping operator to the joint body (1) and the saddle part (2) at the site according to the branch pipe connection direction, and a joint that does not meet the standard can be easily made. Excellent in piping work based on on-site construction. At this time, since the saddle portion (2) has a shape covering at least half of the pipe wall of the main pipe (6) and has a function of fastening to the main pipe (6), the saddle section (2) has Even when the mat-shaped heating element (4) is not mounted in advance, the saddle portion (2) is temporarily fixed to the main pipe (6) with the mat-shaped heating element (4) sandwiched therebetween. Thereby, the electric fusion between the main pipe (6) and the saddle portion (2) can be properly performed. In addition, by joining the joint body (1) and the saddle portion (2) by electrofusion using a mat-like heating element (5), the manufacture of the joint becomes simpler, and particularly, the assemblability in the field. Will be better.
【００１５】また本発明では継手の成形を押出し成形だ
けで行うことが可能となることによって、製造コストの
低下を大幅に図ることができる。In the present invention, since the joint can be formed only by extrusion, the production cost can be greatly reduced.
【図１】プラスチック製分岐管継手の斜視全体図。FIG. 1 is an overall perspective view of a plastic branch pipe joint.
【図２】プラスチック製分岐管継手の断面正面図。FIG. 2 is a sectional front view of a plastic branch pipe joint.
【図３】プラスチック製分岐管継手の断面側面図。FIG. 3 is a cross-sectional side view of a plastic branch pipe joint.
【図４】プラスチック製分岐管継手の分解状態の断面正
面図。FIG. 4 is a sectional front view of a disassembled state of a plastic branch pipe joint.
【図５】プラスチック製分岐管継手の分解状態の断面側
面図。FIG. 5 is a sectional side view of the disassembled state of the plastic branch pipe joint.
【図６】プラスチック製分岐管継手の使用状態の断面正
面図。FIG. 6 is a sectional front view of the use state of the plastic branch pipe joint.
【図７】プラスチック製分岐管継手の使用状態の断面側
面図。FIG. 7 is a cross-sectional side view of the use state of the plastic branch pipe joint.
（１） 継手本体 （２） サドル部 (1) Fitting body (2) Saddle
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平５−256391（ＪＰ，Ａ) 特開 昭54−5219（ＪＰ，Ａ) 実開 平３−25096（ＪＰ，Ｕ) 実開 平３−26896（ＪＰ，Ｕ) 実開 平４−124395（ＪＰ，Ｕ) 実開 平５−77694（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-256391 (JP, A) JP-A-54-5219 (JP, A) JP-A-3-25096 (JP, U) JP-A-3-25609 26896 (JP, U) Japanese Utility Model 4-124395 (JP, U) Japanese Utility Model 5-77694 (JP, U)
Claims (1)
（８）でもって本管（６）に固着するサドル部（２）
と、分岐管（７）の管端を差し込む受口（１ａ）を有す
る継手本体（１）とを備え、サドル部（２）と継手本体
（１）とを融着固定させると共に、サドル部（２）に埋
設する発熱体（４）でもって本管（６）とサドル部
（２）を、また受口（１ａ）に埋設する発熱体（３）で
もって継手本体（１）と分岐管（７）とをそれぞれ融着
接合させて、一本管（６）に分岐管（７）を連通接続さ
せるように構成したことを特徴とするプラスチック製分
岐管継手。 1. An opposing tightening portion (2b) is bolted
(8) Saddle part (2) fixed to main pipe (6)
And a receptacle (1a) into which the pipe end of the branch pipe (7) is inserted.
A saddle part (2) and a joint body.
(1) is fused and fixed, and embedded in the saddle part (2).
Main body (6) and saddle section with heating element (4) to be installed
(2) and the heating element (3) embedded in the receiving port (1a)
The joint body (1) and the branch pipe (7) are fused together
After joining, the branch pipe (7) is connected and connected to the single pipe (6).
Plastic branch pipe joint hand, characterized by being configured so as to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7260786A JP2736409B2 (en) | 1995-09-12 | 1995-09-12 | Plastic branch pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7260786A JP2736409B2 (en) | 1995-09-12 | 1995-09-12 | Plastic branch pipe fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0979469A JPH0979469A (en) | 1997-03-25 |
| JP2736409B2 true JP2736409B2 (en) | 1998-04-02 |
Family
ID=17352722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7260786A Expired - Fee Related JP2736409B2 (en) | 1995-09-12 | 1995-09-12 | Plastic branch pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2736409B2 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS545219A (en) * | 1977-06-14 | 1979-01-16 | Mitsubishi Plastics Ind Ltd | Branch saddle joint made of synthetic resin and manufacturing thereof |
| JPH04124395U (en) * | 1991-04-26 | 1992-11-12 | 積水化学工業株式会社 | Branch pipe fittings for synthetic resin pipes |
| JP2721448B2 (en) * | 1991-11-29 | 1998-03-04 | 東京瓦斯株式会社 | Electro-fusion type pipe joint and its manufacturing method |
| JP2566816Y2 (en) * | 1992-03-23 | 1998-03-30 | 三菱樹脂株式会社 | Branch piping header |
| JP3025096U (en) * | 1995-11-22 | 1996-06-07 | 時久 大川 | Embroidery thread |
| JP3026896U (en) * | 1996-01-17 | 1996-07-23 | 恵玉 林 | Cap type suction device for liquid container |
-
1995
- 1995-09-12 JP JP7260786A patent/JP2736409B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0979469A (en) | 1997-03-25 |
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