JPH06718Y2 - Welding joint - Google Patents
Welding jointInfo
- Publication number
- JPH06718Y2 JPH06718Y2 JP1988092258U JP9225888U JPH06718Y2 JP H06718 Y2 JPH06718 Y2 JP H06718Y2 JP 1988092258 U JP1988092258 U JP 1988092258U JP 9225888 U JP9225888 U JP 9225888U JP H06718 Y2 JPH06718 Y2 JP H06718Y2
- Authority
- JP
- Japan
- Prior art keywords
- boss
- terminal
- joint body
- joint
- synthetic resin
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
- B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
- B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、合成樹脂製のガス管や水道管等の溶着接合に
用いられる継手に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a joint used for welding and joining a synthetic resin gas pipe or water pipe.
（従来の技術） 一般に従来の溶着継手は、端子及びこの端子を内蔵する
ボスが、継手本体の外周面から径方向へ真直に突設され
たものが知られている（例えば、特開昭５８−１３１０
２５号公報参照）。(Prior Art) Generally, a conventional welded joint is known in which a terminal and a boss incorporating the terminal are provided so as to project straight from the outer peripheral surface of the joint body in the radial direction (for example, JP-A-58). -1310
25 publication).
（考案が解決しようとする課題） 一般にこのような溶着継手は、敷設作業時において、作
業性の面からボスが継手本体の頂部に位置するようにセ
ットされる。即ち、地中への敷設時において、ボスが上
方へ開口して設けられることになるため、ボスの内部に
土砂や水等が侵入し易い。そして、合成樹脂管を溶着接
合した後もそのまま放置されることで、端子が腐食や電
食を生じ、それが原因となって継手本体の腐食をも導い
ていた。(Problems to be Solved by the Invention) Generally, such a welded joint is set such that the boss is located at the top of the joint body during work of installation in terms of workability. That is, since the boss is provided so as to open upward when it is laid in the ground, it is easy for dirt, water, and the like to enter the inside of the boss. If the synthetic resin pipe is left as it is after being welded and joined, corrosion or electrolytic corrosion of the terminal occurs, which causes corrosion of the joint body.
更に、ボスが継手本体から突出していることで、合成樹
脂管の溶着接合後に行われる配管ラインの保護作業等が
行い難いという問題もあった。Further, since the boss projects from the joint body, there is a problem that it is difficult to perform the work of protecting the piping line, which is performed after the welding of the synthetic resin pipe.
本考案は、上記のような問題に着目し、敷設後における
端子の腐食及び電食を防止でき、しかも配管後の取り扱
いに便利な溶着継手を提供することを課題としている。The present invention focuses on the above problems, and an object thereof is to provide a welding joint which can prevent corrosion and electrolytic corrosion of terminals after installation and is convenient for handling after piping.
（課題を解決するための手段） 上記課題を解決するために、本考案の溶着継手は、合成
樹脂で形成された継手本体の内周部に加熱要素が配設さ
れ、前記継手本体の頂部には、前記加熱要素の両端と接
続している端子が内蔵されたボスが上方に突設されてい
る溶着継手において、前記ボスの基端部に中実部が形成
され、このボスの中実部と前記端子のそれぞれには、高
さ位置をほぼ一致させてノッチが形成されているもので
ある。(Means for Solving the Problems) In order to solve the above problems, in the welding joint of the present invention, a heating element is arranged on the inner peripheral portion of the joint body formed of synthetic resin, and the heating element is provided on the top portion of the joint body. In a welding joint in which a boss containing a terminal connected to both ends of the heating element is projected upward, a solid portion is formed at a base end portion of the boss, and a solid portion of the boss is formed. And notches are formed in each of the terminals so that the height positions thereof are substantially the same.
（作用） 本考案の溶着継手は、ボスの中実部と前記端子のそれぞ
れに、高さ位置をほぼ一致させてノッチが形成されてい
るので、ボスの内部に端子の腐食及び電食の原因となる
土砂や水等が侵入していたとしても、合成樹脂管の溶着
接合後に、ノッチを利用してボスと端子を折り取ること
により、それらの土砂や水等を全て取り除くことができ
る。また、ボスと端子を折り取ることにより全く土砂や
水に触れてない新たな切断面が露出するので、更にこの
切断面を保護することにより、端子の腐食及び電食を確
実に防止することができる。(Function) In the welded joint of the present invention, notches are formed in the solid part of the boss and the terminal at substantially the same height position, so that the cause of corrosion and electrolytic corrosion of the terminal is inside the boss. Even if soil, water, etc., which would become the above, intrudes, after the synthetic resin pipe is welded and joined, it is possible to remove all the soil, water, etc. by breaking off the boss and the terminal using the notches. In addition, by breaking off the boss and the terminal, a new cut surface that is not exposed to earth and sand or water is exposed.By further protecting this cut surface, it is possible to reliably prevent corrosion and electrolytic corrosion of the terminal. it can.
また、ボスと端子を折り取ることにより継手本体からの
突出量を少なくすることができるので、配管後の扱いが
便利になる。Further, since the amount of protrusion from the joint body can be reduced by breaking off the boss and the terminal, handling after piping becomes convenient.
（実施例） 以下、本考案の実施例を図面により詳述する。Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.
まず、第１図〜第４図に示す第１実施例について、その
構成を説明する。First, the structure of the first embodiment shown in FIGS. 1 to 4 will be described.
尚、実施例を説明するにあたり、継手としてソケットＡ
を例にとって説明する。In describing the embodiment, the socket A is used as a joint.
Will be described as an example.
本実施例のソケットＡは、第１図に示すように、円筒状
に形成された継手本体１と、該継手本体１の両端外周面
から突設された一対のボス２，２とを備えている。前記
継手本体１の内周部には、ニクロム線等の導電線３が継
手本体１の軸心を中心とする螺旋状に埋設されている。As shown in FIG. 1, the socket A of this embodiment includes a joint body 1 formed in a cylindrical shape, and a pair of bosses 2, 2 projecting from outer peripheral surfaces of both ends of the joint body 1. There is. A conductive wire 3 such as a nichrome wire is embedded in the inner peripheral portion of the joint body 1 in a spiral shape around the axis of the joint body 1.
前記ボス２は、継手本体１の径方向へ真直に突設されて
おり、基端側には中実に形成された中実部２１が形成さ
れ、先端側には円筒状に形成された筒状部２２が形成て
いる。The boss 2 is provided so as to project straight in the radial direction of the joint body 1, has a solid portion 21 formed solid on the base end side, and has a cylindrical shape formed on the tip end side. The part 22 is formed.
また、前記ボス２の内部には、前記導電線３の両端と接
続している端子４が内蔵されている。尚、この端子４
は、主として真鍮や砲金等で形成されている。Further, inside the boss 2, terminals 4 connected to both ends of the conductive wire 3 are built in. In addition, this terminal 4
Is mainly made of brass or gun metal.
これらボス２の中実部２１と端子４のそれぞれには、高
さ位置をほぼ一致させて断面Ｖ形のノッチ２３，４１が
形成されている。尚、ノッチ２３，４１の深さは、ボス
２に関しては、ボス２の径の０．０５〜０．１倍前後と
し、端子４に関しては、０．５ｍｍ前後とすることが望
ましい。Notches 23 and 41 having a V-shaped cross section are formed in the solid portion 21 of the boss 2 and the terminal 4, respectively, so that the height positions thereof are substantially the same. The depths of the notches 23 and 41 are preferably about 0.05 to 0.1 times the diameter of the boss 2 for the boss 2 and about 0.5 mm for the terminal 4.
更に、ボス２の中実部２１であって前記ノッチ２３より
基端側の位置外周面には、リング状のシールゴム２５が
嵌着されている。Further, a ring-shaped seal rubber 25 is fitted on the outer peripheral surface of the solid portion 21 of the boss 2 on the proximal side of the notch 23.
このソケットＡは、ポリプロピレン樹脂，ポリエチレン
樹脂，塩化ビニル樹脂，ポリブテン樹脂等の熱可塑性合
成樹脂を素材として例えば射出成形にて形成されてい
る。ボス２は、継手本体１と同時に一体成形してもよい
し、予め別体成形しておき、継手本体１を成形する際に
インサートして一体化してもよい。The socket A is formed of, for example, injection molding using thermoplastic synthetic resin such as polypropylene resin, polyethylene resin, vinyl chloride resin, and polybutene resin. The boss 2 may be integrally molded at the same time as the joint body 1, or may be separately molded in advance and inserted and integrated when the joint body 1 is molded.
更に、本考案においては、加熱要素は本質的なものでは
なく、例えば、多数の細い長尺の炭素繊維が束ねられた
加熱抵抗線であってもよい。また、長さが１０〜２００
mmのニクロム線や炭素繊維等の導電性繊維がシート状に
抄造されたものであってもよい。Further, in the present invention, the heating element is not essential, and may be, for example, a heating resistance wire in which a large number of thin long carbon fibers are bundled. Also, the length is 10-200
A sheet of electroconductive fibers such as mm-mm nichrome wire and carbon fibers may be formed into a sheet.
次に実施例の作用を説明する。Next, the operation of the embodiment will be described.
配管敷設作業を行う場合には、まず地面にソケットＡ及
び合成樹脂管（図示省略）が納まる溝を形成し、ソケッ
トＡの両端に合成樹脂管を差し込みながら、これらを溝
に沿って敷設していく。When performing piping laying work, first form a groove in the ground for accommodating the socket A and the synthetic resin pipe (not shown), and while inserting the synthetic resin pipe at both ends of the socket A, lay these along the groove. Go.
敷設するにあたっては、ソケットＡのボス２が継手本体
１の頂部に位置されるようセットする。そして、上方か
らボス２の内部にコントローラ（図示省略）のコネクタ
を差し込んで、端子４，４間に一定電圧をかけて通電す
る。そして導電線３を発熱させ、その熱で継手本体１の
内周部及び合成樹脂管の外周部を溶融させてソケットＡ
と合成樹脂管を互いに溶着させる。When laying, the boss 2 of the socket A is set so as to be positioned on the top of the joint body 1. Then, a connector of a controller (not shown) is inserted into the boss 2 from above, and a constant voltage is applied between the terminals 4 and 4 to conduct electricity. Then, the conductive wire 3 is caused to generate heat, and the heat causes the inner peripheral portion of the joint body 1 and the outer peripheral portion of the synthetic resin pipe to melt, so that the socket A
And the synthetic resin tubes are welded together.
上述のように溶着接合を行った後、ノッチ２３，４１を
利用してボス２と端子４を折り取り、全く土砂や水に触
れてない新たな切断面２４，４２を露出させる（第２図
参照）。そして、その切断面２４，４２に、ポリプロピ
レン樹脂やポリエチレン樹脂やポリ塩化ビニル樹脂等の
合成樹脂から成るキャップ５を被せて保護する（第３図
及び第４図参照）。After performing the welding and joining as described above, the boss 2 and the terminal 4 are broken off using the notches 23 and 41 to expose the new cut surfaces 24 and 42 which are not in contact with earth and sand or water (see FIG. 2). reference). Then, the cut surfaces 24 and 42 are covered with a cap 5 made of a synthetic resin such as polypropylene resin, polyethylene resin or polyvinyl chloride resin for protection (see FIGS. 3 and 4).
そうすることにより、ボス２の筒状部２２に、端子４の
腐食及び電食の原因となる土砂や水等が付着していたと
しても、それらを完全に取り除いた上で端子４の切断面
４２を保護することができるので、端子４の腐食及び電
食を確実に防止することができる。By doing so, even if dirt, water, or the like that causes corrosion and electrolytic corrosion of the terminal 4 adheres to the tubular portion 22 of the boss 2, after completely removing them, the cut surface of the terminal 4 is removed. Since 42 can be protected, the corrosion and electrolytic corrosion of the terminal 4 can be reliably prevented.
尚、キャップ５の内側に、シール性のある例えば、シリ
コン系やエラストーマー系やブチルゴム系のコーキング
材５１を設け、それに加えてボス２の外周にリング状の
シールゴム２５を設けることにより、キャップ５と継手
本体１間の水密性は二重に確保されることになる。Incidentally, for example, a caulking material 51 having a sealing property, such as a silicone-based, elastomer-based or butyl rubber-based caulking material 51 is provided inside the cap 5, and in addition to this, a ring-shaped sealing rubber 25 is provided on the outer periphery of the boss 2. The watertightness between the joint body 1 and the joint body 1 is double ensured.
また、ボス２と端子４を折り取ることにより継手本体１
からの突出量を少なくすることができるので、配管ライ
ンの保護作業等、配管後の扱いが便利になる。In addition, the joint body 1 is formed by breaking off the boss 2 and the terminal 4.
Since the amount of protrusion from the pipe can be reduced, handling after piping such as work for protecting the piping line becomes convenient.
以上、本考案の実施例を図面により詳述してきたが、具
体的な構成はこの実施例に限られるものではなく本考案
の要旨を逸脱しない範囲の設計変更等があっても本考案
に含まれる。The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and even if there is a design change or the like within the scope not departing from the gist of the present invention, it is included in the present invention. Be done.
例えば、実施例ではソケットに適用した例を示したが、
他の分岐継手，エルボ，チーズ，レジュウーサ等に適用
してもよい。For example, although the example applied to the socket is shown in the embodiment,
It may be applied to other branch joints, elbows, cheeses, reducers, etc.
また、ノッチの断面形状も実施例で示したＶ形に限られ
ない。Further, the sectional shape of the notch is not limited to the V shape shown in the embodiment.
また、キャップの形状も実施例に示したものに限られ
ず、例えば第５図に示すように、天板部５２の外周にフ
ランジを有し、内周面にシールゴム５３を有するもの等
が考えられる。Further, the shape of the cap is not limited to that shown in the embodiment, and for example, as shown in FIG. 5, a cap having a flange on the outer periphery of the top plate portion 52 and a seal rubber 53 on the inner peripheral surface may be considered. .
（考案の効果） 以上説明してきたように本考案の溶着継手にあっては、
ノッチを利用して容易にボスと端子を折り取ることがで
き、そうすることにより、端子の腐食及び電食の原因と
なる土砂や水等を取り除くことができる。そして、敷設
後における端子の腐食及び電食を防止でき、しかも配管
後の取り扱いも便利になるという効果が得られる。(Effect of the Invention) As described above, in the welding joint of the present invention,
The notch can be used to easily break off the boss and the terminal, and by doing so, it is possible to remove dirt, water, etc. that cause corrosion and electrolytic corrosion of the terminal. Further, it is possible to prevent corrosion and electrolytic corrosion of the terminals after laying, and moreover, it is possible to obtain an effect that handling after piping is convenient.
第１図は本考案実施例のソケットを示す部分断面図、第
２図〜第４図は実施例のソケットの要部を示す縦断面
図、第５図はキャップの変更例を示す断面図である。 Ａ…ソケット（継手） １…継手本体 ２…ボス ２１…中実部 ２２…筒状部 ２３…ノッチ ３…導電線（加熱要素） ４…端子 ４１…ノッチFIG. 1 is a partial sectional view showing a socket of an embodiment of the present invention, FIGS. 2 to 4 are vertical sectional views showing a main part of the socket of the embodiment, and FIG. 5 is a sectional view showing a modified example of a cap. is there. A ... Socket (joint) 1 ... Joint body 2 ... Boss 21 ... Solid part 22 ... Cylindrical part 23 ... Notch 3 ... Conductive wire (heating element) 4 ... Terminal 41 ... Notch
Claims (1)
加熱要素が配設され、前記継手本体の外周面に、前記加
熱要素の両端と接続している端子が内蔵されたボスが突
設されている溶着継手において、前記ボスの基端部に中
実部が形成され、このボスの中実部と前記端子のそれぞ
れには、高さ位置をほぼ一致させてノッチが形成されて
いることを特徴とする溶着継手。1. A boss in which a heating element is disposed on an inner peripheral portion of a joint body made of synthetic resin, and a boss containing terminals connected to both ends of the heating element is provided on an outer peripheral surface of the joint body. In the protruding welding joint, a solid portion is formed at the base end portion of the boss, and notches are formed in the solid portion of the boss and the terminal so that their height positions are substantially aligned with each other. Welding joint characterized by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988092258U JPH06718Y2 (en) | 1988-07-11 | 1988-07-11 | Welding joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988092258U JPH06718Y2 (en) | 1988-07-11 | 1988-07-11 | Welding joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0214893U JPH0214893U (en) | 1990-01-30 |
| JPH06718Y2 true JPH06718Y2 (en) | 1994-01-05 |
Family
ID=31316709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988092258U Expired - Lifetime JPH06718Y2 (en) | 1988-07-11 | 1988-07-11 | Welding joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06718Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0716955Y2 (en) * | 1993-03-29 | 1995-04-19 | 大阪瓦斯株式会社 | Terminal protection device for electrofusion joints |
| JP5488987B2 (en) * | 2010-04-06 | 2014-05-14 | 日立金属株式会社 | Electric fusion joint |
| JP2010230173A (en) * | 2010-07-20 | 2010-10-14 | Furukawa Electric Co Ltd:The | Electro-fusion joint |
-
1988
- 1988-07-11 JP JP1988092258U patent/JPH06718Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0214893U (en) | 1990-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6407338B1 (en) | Composite sealant and splice case therefor | |
| JPH06718Y2 (en) | Welding joint | |
| JPH0619912Y2 (en) | Welding joint | |
| JPH03194295A (en) | Welding joint | |
| JPH0529540B2 (en) | ||
| KR200313859Y1 (en) | Polyethylene pipe having collar in a body | |
| JPS6140543B2 (en) | ||
| JPH11153274A (en) | Tubular joint | |
| WO1995025243A1 (en) | Wraparound cover | |
| JP2003343788A (en) | Pipe joint | |
| JPH0716955Y2 (en) | Terminal protection device for electrofusion joints | |
| JP3164783B2 (en) | Electric fusion joint | |
| JPH04126991U (en) | Connection structure between resin pipe and manhole | |
| JP4328457B2 (en) | Gas pipe riser pipe | |
| JPH06213385A (en) | Plastic divergent saddle for corrugate pipe and method for mounting | |
| JP4268279B2 (en) | Welded joint | |
| JPH0735195Y2 (en) | Welding joint | |
| JP2007333156A (en) | Pipe joint | |
| JPH08240294A (en) | Branched joint for electrically fused connection | |
| JPH02262814A (en) | Protection of rising section of burried cable | |
| JPH10329216A (en) | Self-heating type heat shrinkable tube | |
| KR830000224Y1 (en) | Assembly of Heat Shrink Tubing | |
| JPS6241797Y2 (en) | ||
| JPS643918Y2 (en) | ||
| KR200333394Y1 (en) | The connecting structure of the concrete pipes |