JPH07208678A - Electrofusion coupling - Google Patents

Electrofusion coupling

Info

Publication number
JPH07208678A
JPH07208678A JP6001190A JP119094A JPH07208678A JP H07208678 A JPH07208678 A JP H07208678A JP 6001190 A JP6001190 A JP 6001190A JP 119094 A JP119094 A JP 119094A JP H07208678 A JPH07208678 A JP H07208678A
Authority
JP
Japan
Prior art keywords
cylinder body
main body
joint
metallic cylinder
heating wire
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.)
Pending
Application number
JP6001190A
Other languages
Japanese (ja)
Inventor
Hiroshi Oya
博 大矢
Ryoichi Iwayoshi
亮一 岩吉
Takeshi Kato
健 加藤
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP6001190A priority Critical patent/JPH07208678A/en
Publication of JPH07208678A publication Critical patent/JPH07208678A/en
Pending legal-status Critical Current

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
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/561—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using screw-threads being integral at least to one of the parts to be joined
    • 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
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments
    • 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
    • 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
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • 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
    • B29C66/52297—Joining tubular articles involving the use of a socket said socket comprising slip-off prevention means
    • 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
    • B29C66/52298—Joining tubular articles involving the use of a socket said socket being composed by several elements
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • 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
    • B29C66/70—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • B29L2031/7506—Valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To save any troublesome surface chipping work so as to perform connection by forming an electrofusion coupling by means of a plastic-made coupling main body wherein a heating wire is embedded from one end inner surface through the other end inner surface and a metallic cylinder body, and integrally forming the metallic cylinder body on one end inner surface of the coupling main body. CONSTITUTION:A metallic cylinder body 10 is provided with an internal thread 11 for connecting with a tap on its one end, and uneven parts 12 are formed on its other end outer circumferential surface. On the other hand, a coupling main body 20 is formed of a plastic material such as polyethylene resin, etc., and a heating wire 21 is spirally embedded from its one end through its other end. The uneven outer circumferential surfaces 12 of the metallic cylinder body 10 are integrally formed on the inner surface of one end part of the coupling main body 20. Hereby, connecting work is readily performed by only saving any troublesome surface chipping work and inserting to a connecting opening 23 so as to energize.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、プラスチック管と金属
製の器具等とを接続出来る電気融着継手に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric fusion joint capable of connecting a plastic pipe to a metallic instrument or the like.

【０００２】[0002]

【従来の技術】従来、特開平４−３６２３９号公報で開
示された技術は、接続管を挿入可能にして発熱コイル１
が埋設された電気融着継手２に対して、蛇口等の金属管
３の端部外周面に凹凸４を設け、凹凸面４に接着性樹脂
５を溶着した挿入部６を電気融着継手２に挿入し、金属
管３を挿入した状態で継手２の発熱コイル１に通電して
プラスチック管と金属管３を接続するものである。2. Description of the Related Art Conventionally, the technique disclosed in Japanese Patent Laid-Open No. 4-36239 discloses a heating coil 1 in which a connecting pipe can be inserted.
With respect to the electric fusion joint 2 in which is embedded, the concave and convex portions 4 are provided on the outer peripheral surface of the end portion of the metal pipe 3 such as a faucet, and the insertion portion 6 in which the adhesive resin 5 is welded to the concave and convex surface 4 is attached to the electric fusion joint 2 The heating coil 1 of the joint 2 is energized with the metal tube 3 inserted thereinto to connect the plastic tube and the metal tube 3.

【０００３】[0003]

【発明が解決しようとする課題】上記従来技術は、金属
管の端部外周面に凹凸面４を設けなければならず、また
この凹凸面４に接着性樹脂５を溶着しておかねばならな
い。このため電気融着継手２と金属管３との接続は、現
場配管において、予め凹凸面４に接着性樹脂５を溶着し
た挿入部６を有する金属管３を準備しておかなければプ
ラスチック管と金属管３を接続することが出来ない。こ
のため直ちに配管出来ない問題がある。また融着前に挿
入部６の接着性樹脂５表面の汚れや酸化劣化層を０．１
〜０．２ｍｍ程度削り取る面倒な作業が必要である。本
発明は、上記の問題を解消して、プラスチック管と金属
管を通常のプラスチック管を接続するのと同じ容量で、
しかも従来の面倒な表面削り取り作業を省略して接続で
きる電気融着継手を提供するものである。In the above prior art, the uneven surface 4 must be provided on the outer peripheral surface of the end of the metal tube, and the adhesive resin 5 must be welded to the uneven surface 4. For this reason, the electric fusion joint 2 and the metal pipe 3 are connected to the plastic pipe unless the metal pipe 3 having the insertion portion 6 in which the adhesive resin 5 is welded to the uneven surface 4 is prepared in advance in the field pipe. The metal tube 3 cannot be connected. Therefore, there is a problem that piping cannot be immediately performed. Before fusing, the dirt on the surface of the adhesive resin 5 of the insertion part 6 and the oxidation deterioration layer are removed by 0.1
Approximately 0.2 mm is required to perform a troublesome work. The present invention solves the above problems and has the same capacity as connecting a plastic pipe and a metal pipe to a normal plastic pipe,
Moreover, the present invention provides an electric fusion joint that can be connected by omitting the conventional troublesome surface cutting work.

【０００４】[0004]

【課題を解決するための手段】本発明の要旨は、一端内
面から他端内面にかけて電熱線を埋設したプラスチック
製継手本体と、金属製筒体とからなり、該金属製筒体が
前記継手本体の一端内面に一体成型されていることを特
徴とする電気融着継手である。SUMMARY OF THE INVENTION The gist of the present invention consists of a plastic joint body in which a heating wire is buried from the inner surface of one end to the inner surface of the other end, and a metal cylinder body, and the metal cylinder body is the joint body body. Is an electric fusion-bonded joint, characterized in that it is integrally molded on the inner surface at one end thereof.

【０００５】[0005]

【作用】本発明は上記の構成であるから、金属製筒体が
継手本体と一体成型されており、継手本体の一端にプラ
スチック管を挿入して、埋設されている電熱線に通電す
るだけで、プラスチック管と金属製筒体が接続できる。
すなわち電熱線は継手本体の一端から他端にかけて埋設
されているから、通電によってプラスチック管の外面と
金属製筒体の外面が加熱され、金属製筒体に一体成型し
た継手本体内面の樹脂が溶融して凝固することにより、
金属製筒体との一体成型部の密着性がより一層向上し、
信頼性の高い強固な結合部が得られ、プラスチック管と
金属製筒体が通常のソケット型電気融着継手と同じ接続
要領で接続出来る。Since the present invention has the above-mentioned structure, the metal cylinder is integrally molded with the joint body, and a plastic pipe is inserted into one end of the joint body and the embedded heating wire is energized. , The plastic pipe and metal cylinder can be connected.
That is, since the heating wire is buried from one end to the other end of the joint body, the outer surface of the plastic pipe and the outer surface of the metal tubular body are heated by energization, and the resin on the inner surface of the joint body integrally molded with the metal tubular body is melted. And then solidify,
The adhesion of the integrally molded part with the metal cylinder is further improved,
A strong and reliable joint can be obtained, and the plastic pipe and the metal cylinder can be connected in the same connection procedure as a normal socket type electric fusion joint.

【０００６】[0006]

【実施例】以下本発明の実施例を図面に基づいて説明す
る。図１は本発明の実施例を示すもので、金属製筒体１
０は蛇口等の器具と同様の銅合金製で、一端に蛇口との
接続用めねじ１１を設け、他端外周面に凹凸１２を形成
してある。継手本体２０は、接続管と同じ例えばポリエ
チレン樹脂等からなり、一端から他端にかけて発熱電熱
線２１が螺旋状に埋設してある。この電熱線２１は継手
本体の両端部外周面に突出するコネクターピン２２、２
２に接続してある。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention, which is a metal cylinder 1
Reference numeral 0 is made of a copper alloy similar to a device such as a faucet, and has a female screw 11 for connection with a faucet provided at one end and an unevenness 12 formed on the outer peripheral surface of the other end. The joint body 20 is made of, for example, polyethylene resin, which is the same as the connecting pipe, and the heating wire 21 is spirally embedded from one end to the other end. These heating wires 21 are connector pins 22 and 2 protruding from the outer peripheral surfaces of both ends of the joint body.
It is connected to 2.

【０００７】継手本体２０の一端部の内面には金属製筒
体１０の凹凸外周面１２と一体成型されており、他端部
の内面は接続するプラスチック管が挿入可能な内径に形
成されており、プラスチック管との接続口２３となって
いる。接続に当たっては、プラスチック管を上記接続口
２３に挿入して、コネクターピン２２、２２にコントロ
ーラからの電流を通電する。通電によって埋設されてい
る電熱線２１が発熱し、一体成型された金属製筒体１０
及び接続口２３に挿入されたプラスチック管の外面を加
熱溶融し、一体的に融着接続される。The inner surface of one end of the joint body 20 is integrally molded with the uneven outer peripheral surface 12 of the metal tubular body 10, and the inner surface of the other end is formed to have an inner diameter into which a connecting plastic pipe can be inserted. , Which is a connection port 23 with a plastic pipe. At the time of connection, a plastic tube is inserted into the connection port 23, and a current from the controller is applied to the connector pins 22 and 22. The heating wire 21 embedded by the energization generates heat, and the metal tubular body 10 is integrally molded.
Also, the outer surface of the plastic pipe inserted into the connection port 23 is heated and melted, and integrally fused and connected.

【０００８】特に本発明では、電熱線２１が通常のソケ
ット型電気融着継手と同様、一端から他端にかけて螺旋
状に埋設されているので、コントローラの通電容量も通
常のソケット型電気融着継手と同じ容量で通電出来、継
手サイズや形状に応じて通電容量を複雑に変えたり、ま
たはコントローラ側に継手の品種識別機能を持たなくて
も良い。Particularly in the present invention, since the heating wire 21 is embedded in a spiral shape from one end to the other end as in the case of a normal socket type electric fusion joint, the current carrying capacity of the controller is also a normal socket type electric fusion joint. It is possible to energize with the same capacity as above, to change the energizing capacity intricately according to the joint size and shape, or to have no controller type identification function of the joint.

【０００９】また継手本体２０に金属製筒体１０が最初
から一体成型されているから、現場での配管接続作業に
おいても、接続プラスチック管を接続口２３に挿入して
通電するだけでよく、現場での接続作業が容易に行え
る。本実施例において、金属製筒体１０は図示のものに
限らず、蛇口等の器具を直接一体成型したものであって
も良い。この場合より簡単にプラスチック管と目的の接
続器具とを接続出来る。Further, since the metal cylinder 10 is integrally molded in the joint body 20 from the beginning, even in the case of piping connection work at the site, it suffices to insert a connecting plastic pipe into the connection port 23 and energize it. Connection work can be done easily. In the present embodiment, the metal tubular body 10 is not limited to the one shown in the figure, and may be a device such as a faucet directly integrally molded. In this case, the plastic pipe and the target connecting device can be connected more easily.

【００１０】[0010]

【発明の効果】以上のごとく本発明は、簡単に目的の金
属製器具等と接続が行え、また現場での配管接続が簡単
容易に行えるものである。As described above, according to the present invention, it is possible to easily connect to a target metal instrument or the like, and to easily and easily connect pipes on site.

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

【図１】 本発明の一実施例を示す電気融着継手の断面
図である。FIG. 1 is a cross-sectional view of an electric fusion joint showing an embodiment of the present invention.

【図２】 従来技術を示す部分断面図である。FIG. 2 is a partial cross-sectional view showing a conventional technique.

【符号の説明】[Explanation of symbols]

１０ 金属製筒体 １１ 器具と
の接続用めねじ １２ 凹凸面 ２０ 継手本
体 ２１ 発熱電熱線 ２２ コネク
ターピン ２３ 接続口10 Metal Cylindrical Body 11 Female Thread for Connection with Instrument 12 Uneven Surface 20 Joint Body 21 Exothermic Heating Wire 22 Connector Pin 23 Connection Port

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 一端内面から他端内面にかけて電熱線を
埋設したプラスチック製継手本体と、金属製筒体とから
なり、該金属製筒体が前記継手本体の一端内面に一体成
型されていることを特徴とする電気融着継手。1. A plastic joint body in which a heating wire is buried from an inner surface of one end to an inner surface of the other end, and a metal cylinder body, and the metal cylinder body is integrally molded on the inner surface of one end of the joint body. An electric fusion joint characterized by:
JP6001190A 1994-01-11 1994-01-11 Electrofusion coupling Pending JPH07208678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6001190A JPH07208678A (en) 1994-01-11 1994-01-11 Electrofusion coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6001190A JPH07208678A (en) 1994-01-11 1994-01-11 Electrofusion coupling

Publications (1)

Publication Number Publication Date
JPH07208678A true JPH07208678A (en) 1995-08-11

Family

ID=11494541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6001190A Pending JPH07208678A (en) 1994-01-11 1994-01-11 Electrofusion coupling

Country Status (1)

Country Link
JP (1) JPH07208678A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108357113A (en) * 2018-05-03 2018-08-03 聂荣辉 A kind of die head of heat melting device and the heat melting device for being equipped with this die head
CN111634001A (en) * 2020-05-29 2020-09-08 江苏华源节水股份有限公司 PE pipe sleeving and mounting unit at spray head vehicle end

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108357113A (en) * 2018-05-03 2018-08-03 聂荣辉 A kind of die head of heat melting device and the heat melting device for being equipped with this die head
CN111634001A (en) * 2020-05-29 2020-09-08 江苏华源节水股份有限公司 PE pipe sleeving and mounting unit at spray head vehicle end

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