JPH05164286A - 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
JPH05164286A
JPH05164286A JP3327269A JP32726991A JPH05164286A JP H05164286 A JPH05164286 A JP H05164286A JP 3327269 A JP3327269 A JP 3327269A JP 32726991 A JP32726991 A JP 32726991A JP H05164286 A JPH05164286 A JP H05164286A
Authority
JP
Japan
Prior art keywords
connecting members
intermediate member
fusion bonding
electric fusion
heating wires
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
JP3327269A
Other languages
English (en)
Other versions
JP2721451B2 (ja
Inventor
Takashi Anamizu
孝 穴水
Mitsusachi Inagaki
光幸 稲垣
Hideo Nozaki
日出男 野崎
Takeshi Kato
健 加藤
Mitsuo Ikeda
三男 池田
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.)
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
Application filed by Hitachi Metals Ltd, Tokyo Gas Co Ltd filed Critical Hitachi Metals Ltd
Priority to JP3327269A priority Critical patent/JP2721451B2/ja
Publication of JPH05164286A publication Critical patent/JPH05164286A/ja
Application granted granted Critical
Publication of JP2721451B2 publication Critical patent/JP2721451B2/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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—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
    • B29C66/01—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
    • B29C66/5223—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces
    • B29C66/52231—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces with a right angle, e.g. for making L-shaped pieces
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings
    • B29L2031/243—Elbows

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
１半部及び他半部に分けて２系統の電熱線を埋設し該電
熱線の各々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と、
熱可塑性プラスチック材料からなる筒状の中間部材とか
らなり、該中間部材の夫々の端部に前記接続部の各々の
１半部を装着して電気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。
【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１半部及び他半部に分
けて２系統の電熱線を埋設し該電熱線の各々の両端は外
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と、熱可塑性プラスチック
材料からなる筒状の中間部材とからなり、該中間部材の
夫々の端部に前記接続部の各々の１半部を装着して電気
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。
【０００８】
【作用】本発明によれば、夫々に設けた接続部材を中間
部材の端部に電気融着接合で一体化して管継手を形成し
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
種々形状の中間部材と電気融着接合することによってエ
ルボ、チーズ等の各種形状の管継手や異径品も容易に製
作できる。 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１半部及び他半部に分けて２系統の電熱線１
２、１７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２系統のコネクターピン１
３、１４が夫々埋設してあり、このコネクターピン１
３、１４に電熱線１２、１７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１半端部１５、１６を、筒状の中間部材６０の端
部に装着し、装着した側のコネクターピン１３、１３に
別に用意したコントローラ３によって通電し、接続部材
１０、１１と中間部材を６０を電気融着接合する。以上
のようにして図１に示すごとくエルボ形の電気融着式プ
ラスチック管継手１が形成される。中間部材６０は筒状
で各種形状のものをあらかじめ射出成形で設けたもので
あり、端部の接続部材１０、１１がないのでそれだけ中
間部材６０を形成する溶融樹脂の射出容量が少なくて済
み、大容量の射出成形機を必要とせずに形成することが
出来る。
【００１１】管との接続に当たっては、図２のごとく、
中間部材６０と接合された接続部材１０、１１のそれぞ
れの他半部内面にプラスチック管５１を挿入した後、コ
ントローラ３をコネクターピン１４に実線で示すごとく
接続して電熱線１７に通電する。電熱線１７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
熱面積は両側のプラスチック管５１、５２を同時に発熱
させるものに比べて半分で、コントローラ３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】中間部材６０をエルボ形の他Ｔ字形やソケ
ット形のものを用いることによって、各種のプラスチッ
ク管継手を容易に設けることができる。更に接続部の口
径が異なる異径ソケット等も容易に設けることができ
る。異径品の場合は管継手の接続口径によって接続口径
にもっとも適した電気エネルギーで電熱線に電力を供給
できる。
【００１３】
【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、接続部材を中間部材のそれぞれの
端部に電気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。また各種形状の中間部材を用いることにより、異径
品や各種形状の管継手が容易にできる。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 実施例の電気融着式プラスチック式管継手を形成
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と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 ３ コントローラ １０、１１、 接続部材 １２、１７ 電熱線 １３、１４ コネクターピン １５、１６ 接続部材の１半端部 ５１、５２ プラスチック管 ６０ 中間部材
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 (72)発明者 加藤 健 三重県桑名市大福２番地日立金属株式会社 桑名工場内 (72)発明者 池田 三男 東京都千代田区丸の内二丁目２番１号日立 金属株式会社内

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１半部及び他半部に分けて２系統の電熱線を埋設
    し該電熱線の各々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
    材と、熱可塑性プラスチック材料からなる筒状の中間部
    材とからなり、該中間部材の夫々の端部に前記接続部の
    各々の１半部を装着して電気融着接合し一体化したこと
    を特徴とする電気融着式プラスチック管継手。
JP3327269A 1991-12-11 1991-12-11 電気融着式プラスチック管継手 Expired - Fee Related JP2721451B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3327269A JP2721451B2 (ja) 1991-12-11 1991-12-11 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
JP3327269A JP2721451B2 (ja) 1991-12-11 1991-12-11 電気融着式プラスチック管継手

Publications (2)

Publication Number Publication Date
JPH05164286A true JPH05164286A (ja) 1993-06-29
JP2721451B2 JP2721451B2 (ja) 1998-03-04

Family

ID=18197240

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3327269A Expired - Fee Related JP2721451B2 (ja) 1991-12-11 1991-12-11 電気融着式プラスチック管継手

Country Status (1)

Country Link
JP (1) JP2721451B2 (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817884A (en) * 1986-01-30 1989-04-04 Fuji Photo Film Co., Ltd. Method and device for winding magnetic tape using magnetic alignment
US4828196A (en) * 1986-04-07 1989-05-09 Fuji Photo Film Co., Ltd. Device for winding magnetic tape using magnetic alignment
DE10225370A1 (de) * 2002-06-06 2003-12-18 Georg Fischer Wavin Ag Subinge Elektroschweissmuffe
US6781099B2 (en) 2001-03-12 2004-08-24 Karl-Heinz Krah Gmbh Electrofusion socket forming system
KR100533367B1 (ko) * 2002-11-14 2005-12-06 박기종 열선매입 연결관이 구비된 합성수지관
JP2009138794A (ja) * 2007-12-04 2009-06-25 Mitsui Chemicals Inc 分岐継手
KR101969672B1 (ko) * 2018-03-26 2019-04-16 이재영 도시 측량 기준점 표지구

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01158288A (ja) * 1987-12-14 1989-06-21 Mitsubishi Plastics Ind Ltd 管継手
JPH04140593A (ja) * 1990-09-28 1992-05-14 Kubota Corp 電気融着継手

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01158288A (ja) * 1987-12-14 1989-06-21 Mitsubishi Plastics Ind Ltd 管継手
JPH04140593A (ja) * 1990-09-28 1992-05-14 Kubota Corp 電気融着継手

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817884A (en) * 1986-01-30 1989-04-04 Fuji Photo Film Co., Ltd. Method and device for winding magnetic tape using magnetic alignment
US4828196A (en) * 1986-04-07 1989-05-09 Fuji Photo Film Co., Ltd. Device for winding magnetic tape using magnetic alignment
US6781099B2 (en) 2001-03-12 2004-08-24 Karl-Heinz Krah Gmbh Electrofusion socket forming system
US7144045B2 (en) 2001-03-12 2006-12-05 Karl-Heinz Krah Gmbh Electrofusion socket forming system
US7767938B2 (en) 2001-03-12 2010-08-03 Karl-Heinz Krah Gmbh Electrofusion socket forming system
DE10225370A1 (de) * 2002-06-06 2003-12-18 Georg Fischer Wavin Ag Subinge Elektroschweissmuffe
KR100533367B1 (ko) * 2002-11-14 2005-12-06 박기종 열선매입 연결관이 구비된 합성수지관
JP2009138794A (ja) * 2007-12-04 2009-06-25 Mitsui Chemicals Inc 分岐継手
KR101969672B1 (ko) * 2018-03-26 2019-04-16 이재영 도시 측량 기준점 표지구

Also Published As

Publication number Publication date
JP2721451B2 (ja) 1998-03-04

Similar Documents

Publication Publication Date Title
JPH05164286A (ja) 電気融着式プラスチック管継手
JP2721449B2 (ja) 電気融着式プラスチック管継手
JPH05164287A (ja) 電気融着式プラスチック管継手
JPH10246382A (ja) 合成樹脂管用電気融着継手
JPH06265082A (ja) 電気融着継手
JPH0842774A (ja) 電気融着継手
JPH05164288A (ja) 電気融着式プラスチック管継手
JP4527869B2 (ja) 配管材と継手との接続構造
KR200174640Y1 (ko) 합성수지재관 이음관(A joint member of synthetic resin tube)
JP2564770Y2 (ja) 管継手
JPH08145268A (ja) 電気融着用長さ調整継手
JPH02190694A (ja) 高分子材料製管類の接続方法
KR200265641Y1 (ko) 수지관 융착용 발열부싱 일체형 연결구
JPH079559A (ja) 電気融着式プラスチック管継手の製造方法
KR200250794Y1 (ko) 수지관연결소켓
JP3561600B2 (ja) 電気融着継手
JP2566816Y2 (ja) 分岐配管用ヘッダー
JP2721465B2 (ja) 電気融着式プラスチック管継手
JPH05157189A (ja) 電気融着式プラスチック管継手
JP2564771Y2 (ja) 管継手
JPH08152090A (ja) 電気融着継手
JP2590406Y2 (ja) 電気融着用管継手
JPH10169879A (ja) 合成樹脂管用継手
JPH109457A (ja) 管継手
KR200211583Y1 (ko) 가스관용 용융 결합구

Legal Events

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

Free format text: PAYMENT UNTIL: 20071121

Year of fee payment: 10

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

Free format text: PAYMENT UNTIL: 20081121

Year of fee payment: 11

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

Free format text: PAYMENT UNTIL: 20091121

Year of fee payment: 12

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

Free format text: PAYMENT UNTIL: 20091121

Year of fee payment: 12

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

Free format text: PAYMENT UNTIL: 20101121

Year of fee payment: 13

FPAY Renewal fee payment (prs 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