JPH06213386A - 電気融着式プラスチック管継手 - Google Patents

電気融着式プラスチック管継手

Info

Publication number
JPH06213386A
JPH06213386A JP3317886A JP31788691A JPH06213386A JP H06213386 A JPH06213386 A JP H06213386A JP 3317886 A JP3317886 A JP 3317886A JP 31788691 A JP31788691 A JP 31788691A JP H06213386 A JPH06213386 A JP H06213386A
Authority
JP
Japan
Prior art keywords
plastic pipe
pipe fitting
embedded
heat
injection molding
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
JP3317886A
Other languages
English (en)
Other versions
JP2721449B2 (ja
Inventor
Takashi Anamizu
孝 穴水
Mitsusachi Inagaki
光幸 稲垣
Hideo Nozaki
日出男 野崎
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.)
Tokyo Gas Co Ltd
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
Tokyo Gas Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=18093154&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPH06213386(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hitachi Metals Ltd, Tokyo Gas Co Ltd filed Critical Hitachi Metals Ltd
Priority to JP3317886A priority Critical patent/JP2721449B2/ja
Publication of JPH06213386A publication Critical patent/JPH06213386A/ja
Application granted granted Critical
Publication of JP2721449B2 publication Critical patent/JP2721449B2/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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • 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
    • B29C65/3432—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 comprising several wires, e.g. in the form of several independent 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
    • B29C65/72—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
    • B29C66/11—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
    • B29C66/01—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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt 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
    • B29C66/01—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
    • 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
    • B29C66/52298—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
    • 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

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】本発明は、継手本体の口径が大きい場合やエル
ボ、チーズ等の形状が大きな管継手であっても大きな射
出成型機を必要とせずに成形が可能で、また接続に当た
って容量の大きなコントローラを用いなくとも融着接続
でき、更に接続口径に応じた適正な電力で融着接続でき
るプラスチック管継手を提供するものである。 【構成】接続プラスチック管を内挿する筒状の内周側に
電熱線を埋設し該電熱線の両端は外面に突出するコネク
ターピンに連結した熱可塑性プラスチック材料よりなる
接続部材を複数個設け、前記接続部材の各々の端部を熱
融着接合し一体化したことを特徴とするプラスチック管
継手である。

Description

【発明の詳細な説明】
【０００１】
【従来の技術】従来特開平２−３０５０８号公報で開示
された図３に示す電気融着式プラスチック管継手があ
る。このものは継手本体Ａの内周側一端から他端に亘っ
て電熱線２を埋設し、電熱線２の両端は本体Ａの両端に
設けたコネクターピン６と連結したものである。
【０００２】この種の管継手は通常金型内に溶融樹脂を
射出成型して形成する。また接続に当たっては本体Ａの
両端内面にプラスチック管Ｐ，Ｐを挿入し、コントロー
ラよりコネクターピン６にほぼ一定の出力電圧を通電し
て電熱線２を発熱させ、挿入したプラスチック管Ｐ，Ｐ
を同時に融着接続するものである。
【０００３】
【発明が解決しようとする課題】上記従来のプラスチッ
ク管継手は、接続する継手本体Ａの口径が大きくなると
継手本体の成形に大きな金型と大きな射出容量の射出成
型機が必要となり、成型作業も本体プラスチックの熱容
量との関係から成型時間が長くなり、困難を伴う。
【０００４】またプラスチック管Ｐとの接続作業におい
ても、継手本体Ａの両側に挿入した管Ｐ，Ｐを同時に融
着接続するため、発熱面積が大きくなり、電熱線２に通
電するコントローラの電力容量も大きなものが必要であ
る。すなわちコントローラの電力容量Ｗは電流Ｉ＊電圧
Ｅであり、電熱線に与える電気エネルギーＪは電流Ｉ＊
電圧Ｅ＊時間Ｔであるが、電熱線に通電する時間Ｔが大
きすぎてもまた小さすぎても適正な管との接続状態が得
られず、適正な接続状態を得るためには、継手本体Ａと
プラスチック管Ｐとの熱伝達の関係からある適正な通電
時間Ｔがある。
【０００５】このためコントローラの電力容量Ｗも電気
エネルギーＪに応じて大きなものが必要である。さらに
接続口の口径が異なる管継手の異径品では、両側に挿入
した管とを同時に接続するため、継手本体の大口径側の
電気エネルギーが不足したりあるいは小口径側の電気エ
ネルギーが過大になったりして両側の管共適正な接続状
態で接続するのが困難であった。
【０００６】本発明は上記の課題を解消して、継手本体
の口径が大きい管継手であっても大きな射出成型機を必
要とせずに成形が可能で、また接続に当たって容量の大
きなコントローラを用いなくとも融着接続でき、更に接
続口径に応じた適正な電力で融着接続できるプラスチッ
ク管継手を提供するものである。
【０００７】
【課題を解決するための手段】本発明は、接続プラスチ
ック管を内挿する筒状の内周側に電熱線を埋設し該電熱
線の両端は外面に突出するコネクターピンに連結した熱
可塑性プラスチック材料よりなる接続部材を複数個設
け、前記接続部材の各々の少なくとも１つの端部を熱融
着接合して一体化したことを特徴とするプラスチック管
継手である。
【０００８】
【作用】本発明によれば、夫々に設けた接続部材同士ま
たは金型内に射出する溶融樹脂と接続部材間で熱融着接
合して一体化し、管継手を形成したものであるため、特
に大口径の管継手であっても射出容量の大きな射出成型
機や金型を用いなくても製作が容易に出来、また製作時
の成形作業が容易に行える。またプラスチック管との接
続作業においても、管継手の接続口毎に通電して接続作
業が行えるため大容量のコントローラを用意しなくとも
接続でき、更に口径に応じた電力を通電して適正な接続
状態が得られる。
【０００９】
【実施例】以下本発明の実施例を図面を参照して説明す
る。図１において１０、１１は夫々別々に成型して得た
接続部材を示し、この接続部１０、１１は接続すべきプ
ラスチック管５０、５１を挿入できる内径を有し、筒状
で内周側に電熱線１２を螺旋状に埋設してある。接続部
材１０、１１の両端には外面側に突出するコネクターピ
ン１３、１４が夫々埋設してあり、このコネクターピン
１３、１４に電熱線１２の両端を接続してある。この接
続部材１０、１１は通常、熱可塑性プラスチック材料を
射出成型機によって金型内に射出して成形する。
【００１０】このようにして得た接続部材１０、１１の
夫々の端面１５、１６を熱板２０に当てる。熱板２０は
ヒータ２１を内装しているので端面１５、１６は加熱さ
れて溶融される。溶融状態に達したら熱板２０を外し、
素早く夫々の端面１５、１６同士を互いに押し当てる。
端面は互いに溶融状態のため両接続部材１０、１１は熱
融着接合して一体化する。以上のようにして図２に示す
ごとくのソケット形の電気融着式プラスチック管継手が
形成される。熱融着接合部には内面側と外面側に融着時
のビード１７、１８が突き出るが、内面側のビード１７
は管継手にプラスチック管５０、５１を挿入したときの
ストッパーの役目をする。
【００１１】管との接続に当たっては、図２のごとく継
手本体の一端側にプラスチック管５１を挿入した後、コ
ントローラ３をコネクターピン１３、１４に実線で示す
ごとく接続して電熱線１２に通電する。電熱線１２はプ
ラスチック管５１の挿入側継手本体の片側で一系統のた
め、発熱面積は両側同時に発熱させるものに比べて半分
のため、コントローラの電力容量も約半分のもので行
え、また管５１の口径や接続条件に応じた適正な融着接
続が行える。
【００１２】
【発明の効果】以上説明のごとく本発明の電気融着式プ
ラスチック管継手は、接続部材を熱融着接合して一体化
したものであるため、射出容量の大きな射出成形機を必
要とせず、またプラスチック管との接続作業に際しても
電力容量の小さなコントローラで大口径のプラスチック
管と接続することができる。更に口径に応じた電気エネ
ルギーでプラスチック管との適正な接続状態の融着接続
が行える。
【図面の簡単な説明】
図１ 実施例の夫々の接続部材同士を熱融着する際の状
態を示す断面図。 図２ 実施例のプラスチック管を接続する際の状態を示
す部分断面図。 図３ 別の実施例を示すプラスチック管継手の部分断面
図。 図４ 従来技術を示すプラスチック管継手の断面図。
【符号の説明】
１、 管継手本体２ 熱板 ３ コントローラ １０、１１、 接続部材 １２ 電熱線 １３、１４コネクターピン ２０ ヒータ １５、１６ 接続部材の端面 １７、１８ ビード ５０、５１ プラスチック管
─────────────────────────────────────────────────────
【手続補正書】
【提出日】平成５年８月２６日
【手続補正１】
【補正対象書類名】明細書
【補正対象項目名】図面の簡単な説明
【補正方法】変更
【補正内容】
【図面の簡単な説明】
【図１】実施例の夫々の接続部材同士を熱融着する際の
状態を示す断面図。
【図２】実施例のプラスチック管を接続する際の状態を
示す部分断面図。
【図３】従来技術を示すプラスチック管継手の断面図。
【符号の説明】 １、 管継手本体 ２ 熱板 ３ コントローラ １０、１１、 接続部材 １２ 電熱線 １３、１４コネクターピン ２０ ヒータ １５、１６ 接続部材の端面 １７、１８ ビード ５０、５１ プラスチック管
───────────────────────────────────────────────────── フロントページの続き (72)発明者 野崎 日出男 三重県桑名市大福２番地日立金属株式会社 桑名工場内

Claims (1)

    【特許請求の範囲】
  1. 【請求項１】 接続プラスチック管を内挿する筒状の内
    周側に電熱線を埋設し該電熱線の両端は外面に突出する
    コネクターピンに連結した熱可塑性プラスチック材料よ
    りなる接続部材を複数個設け、前記接続部材の各々の少
    なくとも１つの端部を加熱した後互いに圧着して熱融着
    接合し一体化したことを特徴とするプラスチック管継
    手。
JP3317886A 1991-12-02 1991-12-02 電気融着式プラスチック管継手 Expired - Fee Related JP2721449B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3317886A JP2721449B2 (ja) 1991-12-02 1991-12-02 電気融着式プラスチック管継手

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3317886A JP2721449B2 (ja) 1991-12-02 1991-12-02 電気融着式プラスチック管継手

Publications (2)

Publication Number Publication Date
JPH06213386A true JPH06213386A (ja) 1994-08-02
JP2721449B2 JP2721449B2 (ja) 1998-03-04

Family

ID=18093154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3317886A Expired - Fee Related JP2721449B2 (ja) 1991-12-02 1991-12-02 電気融着式プラスチック管継手

Country Status (1)

Country Link
JP (1) JP2721449B2 (ja)

Also Published As

Publication number Publication date
JP2721449B2 (ja) 1998-03-04

Similar Documents

Publication Publication Date Title
US4842305A (en) Pipe joint connecting plastic pipes and process of making such joint
JP2721451B2 (ja) 電気融着式プラスチック管継手
JPH05256391A (ja) 電気融着式管継手及びその製法
KR20040096757A (ko) 합성수지관 융착구조
JP2721449B2 (ja) 電気融着式プラスチック管継手
JP2939032B2 (ja) 電気融着式プラスチック管継手の製造方法
JPH10246382A (ja) 合成樹脂管用電気融着継手
JP4527869B2 (ja) 配管材と継手との接続構造
JP2880040B2 (ja) プラスチック管継手
JP2002160292A (ja) プラスチック管の接続端末及びその製造方法
JP4603680B2 (ja) 熱可塑性樹脂製管継手の溶着確認方法
JPH11236992A (ja) 電気融着式管継手
JPH079559A (ja) 電気融着式プラスチック管継手の製造方法
JP2736409B2 (ja) プラスチック製分岐管継手
JPH05164288A (ja) 電気融着式プラスチック管継手
JP2721465B2 (ja) 電気融着式プラスチック管継手
KR200275923Y1 (ko) 열융착부가 형성된 합성수지관
JPH07329186A (ja) 電気融着継手
JP2556772Y2 (ja) プラスチック製管継手
JPH08145268A (ja) 電気融着用長さ調整継手
JPH08200581A (ja) プラスチック管の融着方法
JP2000320775A (ja) 配管の製造方法
JP4422828B2 (ja) 樹脂管の融着接合方法
JP2570652Y2 (ja) 電気融着継手
JPH08152090A (ja) 電気融着継手

Legal Events

Date Code Title Description
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20071121

Year of fee payment: 10

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20081121

Year of fee payment: 11

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091121

Year of fee payment: 12

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091121

Year of fee payment: 12

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101121

Year of fee payment: 13

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111121

Year of fee payment: 14

LAPS Cancellation because of no payment of annual fees