JPH07224988A - 熱可塑性プラスチック製管継手の融着方法 - Google Patents

熱可塑性プラスチック製管継手の融着方法

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Publication number
JPH07224988A
JPH07224988A JP6035371A JP3537194A JPH07224988A JP H07224988 A JPH07224988 A JP H07224988A JP 6035371 A JP6035371 A JP 6035371A JP 3537194 A JP3537194 A JP 3537194A JP H07224988 A JPH07224988 A JP H07224988A
Authority
JP
Japan
Prior art keywords
tube joint
electromagnetic wave
insulating body
thermoplastic plastic
tube
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
JP6035371A
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English (en)
Other versions
JP2670745B2 (ja
Inventor
Masaru Kumagai
谷 勝 熊
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.)
TOA KOKYU KEISHU VALVE
TOA KOUKIYUU KEISHIYU VALVE SEIZO KK
TOKUSHU KOGYO KK
Original Assignee
TOA KOKYU KEISHU VALVE
TOA KOUKIYUU KEISHIYU VALVE SEIZO KK
TOKUSHU KOGYO KK
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Priority to JP6035371A priority Critical patent/JP2670745B2/ja
Publication of JPH07224988A publication Critical patent/JPH07224988A/ja
Application granted granted Critical
Publication of JP2670745B2 publication Critical patent/JP2670745B2/ja
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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
    • B29C66/5229—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"
    • B29C65/36—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" heated by induction
    • B29C65/3604—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" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3608—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" heated by induction characterised by the type of elements heated by induction which remain in the joint comprising single particles, e.g. fillers or discontinuous fibre-reinforcements
    • 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"
    • B29C65/36—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" heated by induction
    • B29C65/3604—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" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/364—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" heated by induction characterised by the type of elements heated by induction which remain in the joint being a woven or non-woven fabric or being a mesh
    • 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"
    • B29C65/36—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" heated by induction
    • B29C65/3668—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" heated by induction characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special induction coils
    • 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
    • B29C66/70—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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91651—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
    • 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"
    • B29C65/36—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" heated by induction
    • B29C65/3672—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" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—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" heated by induction characterised by the composition of the elements heated by induction 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
    • 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"
    • B29C65/36—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" heated by induction
    • B29C65/3672—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" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3684—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" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being non-metallic

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Textile Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

(57)【要約】 ［目的］ 熱可塑性プラスチック製管に融着させる熱
可塑性プラスチック製管継手の製造コストを安くする。 ［構成］ 熱可塑性プラスチック製管継手（２）の熱
可塑性プラスチック製管（１）との接触面に非絶縁体
（４）を固設し、該非絶縁体（４）に管継手（３）外側
から電磁波を掛け、磁気損失により非絶縁体（４）から
発熱させる。

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、熱可塑性プラスチック
製管に融着により一体連結させる熱可塑性プラスチック
製管継手の融着方法に関する。
【０００２】
【従来の技術】従来、電気抵抗線を円柱面に螺線状に巻
いて形成したスリーブ状の発熱体を、熱可塑性プラスチ
ック製管の端部を差込む熱可塑性プラスチック製管継手
の受口内周面に設け、電気抵抗線に電流を流し、管端部
に継手の受口を電気融着させる技術があった。
【０００３】
【発明が解決しようとする課題】前記従来技術は、電気
抵抗線の相互接触による短絡を防ぐために電気抵抗素線
に特殊な絶縁被覆を施す必要があり、発熱体の形成も容
易に行い難いこともあって、発熱体の製造コストが高く
つく。さらに、電気抵抗線を電源に接続するためのター
ミナル部を管継手に一体形成する必要があり、その分管
継手の金型が高くつく。従って、管継手が高価になる問
題があった。
【０００４】
【課題を解決するための手段】然るに、本発明は、熱可
塑性プラスチック製管継手の熱可塑性プラスチック製管
との接触面に非絶縁体を固設し、該非絶縁体に管継手外
側から電磁波を掛け、磁気損失により非絶縁体から発熱
させるものである。
【０００５】
【作 用】従って、極めて製造コストが安い非絶縁体を
発熱体として用いることができると共に、管継手にター
ミナル部などを特別に設ける必要がなく、従来に比べて
管継手の価格を安くできるものである。
【０００６】
【実施例】以下本発明の実施例を図面に基づいて詳述す
る。図１は本発明に係る熱可塑性プラスチック製管継手
の融着方法を示す説明図であり、図中（１）は熱可塑性
プラスチック製の管、（２）は熱可塑性プラスチック製
のソケット形の管継手で、管継手（２）は管（１）と同
一の材料で成形されると共に、管（１）の端部を差込む
受け口（３）の内周面には発熱体であるスリープ状の非
絶縁体（４）が埋込み固定されている。非絶縁体（４）
としては炭素材でスリーブ状に編上げた無編布や金属ス
リーブを用いる他、受け口（３）の内周面に金属粉をコ
ーティングしたものでもよい。無編布や金属スリーブを
用いる場合は管継手成形時に金型にインサートする一
方、金属粉のコーティングの場合は管継手成形後の二次
加工で行う。
【０００７】そして、前記管継手（２）の受け口（３）
の外周側に電磁コイル（５）を配設し、このコイル
（５）に通電して受け口（３）の内周面の非絶縁体
（４）に電磁波を掛けることにより、磁気損失が発生
し、この磁気損失により非絶縁体（４）から発熱し、管
（１）の端部と管継手（２）の受け口（３）とが融着さ
れるものである。
【０００８】また、図中（６）は前記コイル（５）並び
に電磁力調節用の可変抵抗（７）並びに電源に対する接
続端子（８）（９）から成る電磁波発生回路であり、可
変抵抗（７）による電磁力調節により非絶縁体（４）の
発熱量（仕事量）を調節することができる。
【０００９】図２は上記回路（６）を組込んだクランプ
式の電磁波発生装置を示すもので、該装置（１０）は受
け口（３）外周を囲う半割りのクランプアーム（１１）
（１２）を設け、一方のクランプアーム（１１）は取手
（１３）の一端から一体形成し、他方のクランプアーム
（１２）は取手（１３）の一端に支軸（１４）を介して
回動自在に取付けてあり、可動側のクランプアーム（１
２）を開閉することによりクランプアーム（１１）（１
２）を受け口（３）に脱着すると共に、各クランプアー
ム（１２）先端の合わせ面に設ける磁石（１５）（１
６）により、可動側のクランプアーム（１２）を閉保持
するようにしている。
【００１０】そして、各クランプアーム（１１）（１
２）にそれぞれ半円状の鉄心（１７）を内装すると共
に、取手（１３）の端部に前記接続端子（８）（９）を
配設し、一方の接続端子（８）に一端を接続させる導電
線を、固定側のクランプアーム（１１）の鉄心（１７）
にこの一端から他端に所定回数巻付け、次いで可動側の
クランプアーム（１２）の鉄心（１８）にこの一端から
他端に所定回数巻付け、該導電線の他端を他方の接続端
子（９）に接続させ、各クランプアーム（１１）（１
２）内部に形成されたコイル（５）により受け口（３）
外周略全面から受け口（３）内周面の非絶縁体（４）全
面に略均一に電磁波を掛けるように構成している。
【００１１】また、上記したクランプ式の電磁波発生装
置（１０）は受け口（３）の直径が中以下の管継手
（２）に適用される。
【００１２】図３は上記回路（６）を組込んだベルト式
の電磁波発生装置を示すもので、該装置（２１）は受け
口（３）の外周面に巻付ける可撓性のベルト体（２２）
を設け、該ベルト体（２２）の両端表裏に商標名マジッ
クテープ（２３）を張り付け、受け口（３）の直径に応
じて巻付け長さを適宜調節できるようにしてある。
【００１３】そして、前記ベルト体（２２）にこの幅方
向に長い棒状の鉄心（２４）を長さ方向に略等間隔に内
装すると共に、ベルト体（２２）の両端に別けて前記接
続端子（８）（９）を配設し、一方の接続端子（８）に
一端を接続させる導電線を、各鉄心（２４）にこの一端
から他端に順次所定回数巻付け、該導電線の他端を他方
の接続端子（９）に接続させ、ベルト体（２２）内部に
形成されたコイル（５）により受け口（３）外周全面か
ら受け口（３）内周面の非絶縁体（４）全面に略均一に
電磁波を掛けるように構成している。
【００１４】また、上記したベルト式の電磁波発生装置
（２１）は受け口（３）の直径が中以上の管継手（２）
に適用される。
【００１５】各電磁波発生装置（１０）（２１）のコイ
ル（５）及び導電線には絶縁が施されると共に、クラン
プアーム（１１）（１２）及び取手（１３）の成形材料
はプラスチックまたは硬質ゴムが用いられ、ベルト体
（２２）の成形材料はプラスチックまたはゴムまたは皮
が用いられるものである。
【００１６】
【発明の効果】以上実施例から明らかなように本発明
は、熱可塑性プラスチック製管継手（２）の熱可塑性プ
ラスチック製管（１）との接触面に非絶縁体（４）を固
設し、該非絶縁体（４）に管継手（３）外側から電磁波
を掛け、磁気損失により非絶縁体（４）から発熱させる
もので、極めて製造コストが安い非絶縁体（４）を発熱
体として用いることができると共に、管継手（２）にタ
ーミナル部などを特別に設ける必要がなく、従来に比べ
て管継手（２）の価格を安くできる顕著な効果を奏する
ものである。
【図面の簡単な説明】
【図１】本発明に係る熱可塑性プラスチック製管継手の
融着方法を示す説明図。
【図２】クランプ式の電磁波発生装置を示す説明図。
【図３】ベルト式の電磁波発生装置を示す説明図。
【符号の説明】
（１） 熱可塑性プラスチック製管 （２） 熱可塑性プラスチック製管継手 （４） 非絶縁体 （１０）（２１） 電磁波発生装置

Claims (1)

    【特許請求の範囲】
  1. 【請求項１】 熱可塑性プラスチック製管継手の熱可塑
    性プラスチック製管との接触面に非絶縁体を固設し、該
    非絶縁体に管継手外側から電磁波を掛け、磁気損失によ
    り非絶縁体から発熱させることを特徴とする熱可塑性プ
    ラスチック製管継手の融着方法。
JP6035371A 1994-02-07 1994-02-07 熱可塑性プラスチック製管継手の融着装置 Expired - Lifetime JP2670745B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6035371A JP2670745B2 (ja) 1994-02-07 1994-02-07 熱可塑性プラスチック製管継手の融着装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6035371A JP2670745B2 (ja) 1994-02-07 1994-02-07 熱可塑性プラスチック製管継手の融着装置

Publications (2)

Publication Number Publication Date
JPH07224988A true JPH07224988A (ja) 1995-08-22
JP2670745B2 JP2670745B2 (ja) 1997-10-29

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Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102168778A (zh) * 2011-05-09 2011-08-31 徐焕松 塑料管道电磁熔连接结构
CN106402524A (zh) * 2016-11-30 2017-02-15 罗贤想 一种钢塑复合管连接件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05187588A (ja) * 1992-01-13 1993-07-27 Sekisui Chem Co Ltd 熱可塑性樹脂管用継手
JPH06341588A (ja) * 1993-06-02 1994-12-13 Fujipura Seiko:Kk 高周波誘導発熱体を有する管継手
JPH0839675A (ja) * 1993-09-24 1996-02-13 Haidetsuku Kk 樹脂パイプの接続方法及び接続装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05187588A (ja) * 1992-01-13 1993-07-27 Sekisui Chem Co Ltd 熱可塑性樹脂管用継手
JPH06341588A (ja) * 1993-06-02 1994-12-13 Fujipura Seiko:Kk 高周波誘導発熱体を有する管継手
JPH0839675A (ja) * 1993-09-24 1996-02-13 Haidetsuku Kk 樹脂パイプの接続方法及び接続装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102168778A (zh) * 2011-05-09 2011-08-31 徐焕松 塑料管道电磁熔连接结构
CN106402524A (zh) * 2016-11-30 2017-02-15 罗贤想 一种钢塑复合管连接件

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