JPH072697U - 電気融着用管継手 - Google Patents

電気融着用管継手

Info

Publication number
JPH072697U
JPH072697U JP031160U JP3116093U JPH072697U JP H072697 U JPH072697 U JP H072697U JP 031160 U JP031160 U JP 031160U JP 3116093 U JP3116093 U JP 3116093U JP H072697 U JPH072697 U JP H072697U
Authority
JP
Japan
Prior art keywords
heating wire
synthetic resin
peripheral surface
embedded
inner peripheral
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
Application number
JP031160U
Other languages
English (en)
Other versions
JP2590406Y2 (ja
Inventor
治 甲田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Plastics Inc
Original Assignee
Mitsubishi Plastics Inc
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 Mitsubishi Plastics Inc filed Critical Mitsubishi Plastics Inc
Priority to JP1993031160U priority Critical patent/JP2590406Y2/ja
Publication of JPH072697U publication Critical patent/JPH072697U/ja
Application granted granted Critical
Publication of JP2590406Y2 publication Critical patent/JP2590406Y2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C65/02—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
    • B29C65/3424—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 said at least a single wire having the form of a coil spring
    • 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
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped 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
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt 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
    • B29C66/50—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
    • 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
    • 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

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

(57)【要約】 【目的】 電熱線が熱膨張したとき、隣接する電熱線同
志が接触して短絡することのない電気融着用管継手を提
供する。 【構成】 コイル巻きした電熱線２を合成樹脂製継手本
体１の受口１１の内周面に所定間隔で螺旋状に埋設す
る。 【効果】 電熱線が熱膨張しても隣接する電熱線同志が
短絡することがなく、強固な融着接合が得られる。

Description

【考案の詳細な説明】
【０００１】
【産業上の利用分野】
本考案は、受口内周面に埋設した電熱線を発熱させるだけで合成樹脂管を融着 接合できる電気融着用管継手に関する。
【０００２】
【従来の技術】
ポリエチレン等の合成樹脂管を接続する場合、従来から合成樹脂製継手本体の 受口内周面に電熱線を埋設した管継手が使用されており、該受口に合成樹脂管の 端部を嵌挿してから電熱線を発熱させて融着接合している。
【０００３】
【考案が解決しようとする課題】
しかしながら、従来の電気融着用管継手は、直状の電熱線を螺旋状に巻回して これを受口内周面に埋設していたので、電熱線が発熱して熱膨張したとき隣接す る電熱線同志が接触して短絡することがあった。従って、電熱線が短絡した部分 では合成樹脂が過度に加熱されるため均一に溶融せず、強固な融着接合が得られ ないという問題があった。 一方、特公平４ー５８７６号公報には、電熱線を軸線方向に曲がりくねらせなが ら螺旋状に埋設したものが提案されているが、この管継手の場合も電熱線が熱膨 張したときに隣接する電熱線同志が接触する危険性があった。
【０００４】 本考案はかかる課題を解決したものであって、電熱線が熱膨張したとき隣接す る電熱線同志が短絡する虞れがなく、強固な融着接合が得られる電気融着継手を 提供するものである。
【０００５】
【課題を解決するための手段】
本考案は、コイル巻きした電熱線を受口内周面に所定の間隔をもって螺旋状に 埋設したことを特徴とするものである。
【０００６】
【作用】
電熱線の熱膨張がコイルによって吸収されるため、受口に合成樹脂管を嵌挿し てから電熱線を発熱させたとき、隣接する電熱線同志が接触することはない。
【０００７】
【実施例】
以下、本考案の実施例を図面にて詳細に説明する。 図１は本考案の一実施例を示す電気融着用管継手の縦断面図、図２は電熱線の要 部を示す斜視図であって、図中１はポリエチレン樹脂、ポリプロピレン樹脂、ポ リブテン樹脂等の合成樹脂からなる継手本体、２はニッケルークロム、銅ーニッ ケル等からなる電熱線である。
【０００８】 継手本体１の両端部には受口１１が設けられており、該受口１１の内周面に電 熱線２が所定間隔で螺旋状に埋設されている。また電熱線２の両端部は継手本体 １の外面に設けたコネクター１２のピン３と接続している。前記電熱線２は直状 のものをコイル状に巻回したものであって、このコイル巻きした電熱線２を若干 引き伸ばして収縮可能な状態で螺旋状に巻回し、これを受口１１の内周面に埋設 したものである。尚、コイルの径寸法ｄは電熱線２の線径に応じて適宜設定する ことができるが、例えば線径が０．３〜１．０ｍｍの電熱線２を使用する場合に はコイルの径寸法ｄを３ｍｍ程度に設定するとよい。
【０００９】 本考案の電気融着用管継手は以上の構成からなるものであって、この管継手に 合成樹脂管を接続する場合、まず継手本体１のそれぞれの受口１１に合成樹脂管 の端部を嵌挿する。そこで、コネクター１２のピン３に電源と接続したプラグを 接続し（図示せず）、電熱線２に通電して発熱させると受口１１の内周面と合成 樹脂管の端部外周面とが同時に溶融して融着接合する。この融着接合の際に電熱 線２は発熱して伸長するが、この熱膨張は電熱線２のコイルによって吸収される ため、隣接する電熱線２同志が接触して短絡することはない。このため、双方の 接合面は均一に加熱されて強固に融着接合する。
【００１０】
【考案の効果】
以上詳述した如く、本考案の管継手はコイル巻きした電熱線を受口内周面に埋 設したので、該電熱線の発熱による熱膨張がコイルによって吸収されるため隣接 する電熱線同志が短絡することがなく、強固な融着接合が得られる。従って、本 考案の電気融着用管継手を使用すると、融着不良に起因する管内流体の漏洩事故 が発生する虞れは全くない。
【図面の簡単な説明】
【図１】図１は本考案の一実施例を示す電気融着用管継
手の縦断面図である。
【図２】図２は電熱線の要部を示す斜視図である。
【符号の説明】
１ 合成樹脂製継手本体 ２ 電熱線 ３ ピン ２１ コネクター

Claims (1)

    【実用新案登録請求の範囲】
  1. 【請求項１】 コイル巻きした電熱線を合成樹脂製継手
    本体の受口内周面に所定間隔をもって螺旋状に埋設した
    ことを特徴とする電気融着用管継手。
JP1993031160U 1993-06-10 1993-06-10 電気融着用管継手 Expired - Fee Related JP2590406Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1993031160U JP2590406Y2 (ja) 1993-06-10 1993-06-10 電気融着用管継手

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1993031160U JP2590406Y2 (ja) 1993-06-10 1993-06-10 電気融着用管継手

Publications (2)

Publication Number Publication Date
JPH072697U true JPH072697U (ja) 1995-01-13
JP2590406Y2 JP2590406Y2 (ja) 1999-02-17

Family

ID=12323700

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1993031160U Expired - Fee Related JP2590406Y2 (ja) 1993-06-10 1993-06-10 電気融着用管継手

Country Status (1)

Country Link
JP (1) JP2590406Y2 (ja)

Also Published As

Publication number Publication date
JP2590406Y2 (ja) 1999-02-17

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