JPH1030781A - 合成樹脂製管継手 - Google Patents

合成樹脂製管継手

Info

Publication number
JPH1030781A
JPH1030781A JP8189355A JP18935596A JPH1030781A JP H1030781 A JPH1030781 A JP H1030781A JP 8189355 A JP8189355 A JP 8189355A JP 18935596 A JP18935596 A JP 18935596A JP H1030781 A JPH1030781 A JP H1030781A
Authority
JP
Japan
Prior art keywords
synthetic resin
joint
pipe
pipes
pipe joint
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8189355A
Other languages
English (en)
Inventor
Kazunori Umeda
一徳 梅田
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 JP8189355A priority Critical patent/JPH1030781A/ja
Publication of JPH1030781A publication Critical patent/JPH1030781A/ja
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C66/12—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
    • 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
    • B29C66/52293—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being external
    • 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
    • B29C65/3464—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 characterised by the cross-section of said heated elements which remain in the joint or by the cross-section of their coating, e.g. being triangular
    • 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
    • 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
    • B29C65/348—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 with a polymer coating

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】 【課題】 異なる合成樹脂からなる管を強固に接続でき
る管継手を提供する。 【解決手段】 異なる合成樹脂からなる管Ｐ1 ，Ｐ2 を
接続する管継手であって、継手本体１を一方の合成樹脂
管Ｐ1 と同種の合成樹脂で形成すると共に、その一端に
第１継手部１１を設ける。また、継手本体１の他端に他
方の合成樹脂管Ｐ2 と同種の合成樹脂からなる第２継手
部１２を設けてその接合面に電熱線２を埋設する。 【効果】 異なる合成樹脂からなる管を強固に接続でき
る。

Description

【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、異種の合成樹脂管
同志を接続する際に好適に使用できる合成樹脂製管継手
に関する。
【０００２】
【従来の技術】従来からガス管、給湯管等の配管分野で
は、ポリエチレン、ポリブテン等の合成樹脂管が使用さ
れており、その接続には合成樹脂管と同種の合成樹脂か
らなる管継手が使用されている。例えば、低密度のポリ
エチレン管同志の接続には、低密度ポリエチレン樹脂か
らなる管継手が使用されており、ポリブテン管同志の接
続には、ポリブテンからなる管継手が使用されている。
【０００３】
【発明が解決しようとする課題】ところで、配管の施工
現場では、低密度のポリエチレン管に高密度のポリエチ
レン管を接続したり、ポリエチレン管とポリブテン管と
を接続しなければならない状況が発生することがある
が、従来の管継手では異種の合成樹脂管同志を簡単、か
つ確実に接続できなかった。
【０００４】本発明はかかる課題を解決したものであっ
て、異種の合成樹脂管同志を簡単、かつ確実に接続でき
る管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】本発明は、異なる合成樹
脂からなる管を接続する管継手であって、継手本体を一
方の合成樹脂管と同種の合成樹脂で形成すると共に、そ
の一端に第１継手部を設け、また継手本体の他端に他方
の合成樹脂管と同種の合成樹脂からなる第２継手部を設
けてその接合面に電熱線を埋設したことを特徴とする。
【０００６】
【発明の実施の形態】以下、本発明の実施例を図面にて
詳細に説明する。図１は本発明の一実施例を示す管継手
の半断面図、図２は本発明の他の実施例を示す半断面
図、図３は更に本発明の他の実施例を示す半断面図であ
って、図中の符号１は継手本体、Ｐ1 及びＰ2 は異なる
合成樹脂からなる管である。
【０００７】継手本体１は合成樹脂管Ｐ1 と同種の合成
樹脂で形成されており、その一端には合成樹脂管Ｐ1 が
接続される第１継手部１１が設けられている。また、継
手本体１の他端には合成樹脂管Ｐ2 と同種の合成樹脂で
形成された第２継手部１２が設けられている。尚、第１
継手部１１と第２継手部１２とを形成する合成樹脂とし
ては、高密度ポリエチレンと低密度ポリエチレンとの組
み合わせ、ポリエチレンとポリブテンとの組み合わせ等
が考えられるが、これ以外にも異なる任意の合成樹脂の
組み合わせとすることができる。
【０００８】図１に示した管継手は、射出成型によって
継手本体１の他端内周に円筒状の継手部１２を一体的に
融着嵌合させたものである。円筒状の継手部１２の外周
に設けられた螺旋状の溝には電熱線２が嵌入しており、
該電熱線２の両端は継手本体１の他端外周から突出した
端子ピン２１と接続している。
【０００９】この管継手の場合、第１継手部１１の外周
面と、合成樹脂管Ｐ1 の端部内周面に電熱ヒータを当て
がって双方の接合面を溶融させたのち、合成樹脂管Ｐ1
の端部に第１継手部１１を嵌入する。そして、第２継手
部１２に合成樹脂管Ｐ2 の端部を嵌入してから電熱線２
に通電し、該電熱線２を発熱させて双方の接合面を融着
接合することができる。
【００１０】図２に示した管継手は、外周面が合成樹脂
で被覆されたニクロム線等の電熱線２をコイル状に巻回
し、このコイル状のものを射出成型によって継手本体１
の他端内周に一体的に融着嵌合させたものである。電熱
線２の両端は継手本体１の他端外周から突出した端子ピ
ン２１と接続している。
【００１１】この管継手の場合も、前記同様にして第１
継手部１１に合成樹脂管Ｐ1 の端部を融着接合すること
ができ、第２継手部１２に埋設された電熱線２を発熱さ
せて合成樹脂管Ｐ2 の端部を融着接合することができ
る。
【００１２】図３に示した管継手は、第１継手部１１と
第２継手部１２の双方の内周面に電熱線２を埋設したも
のであって、それぞれの電熱線２に通電して発熱させる
だけで、異なる合成樹脂からなる管Ｐ1 ，Ｐ2 を強固に
融着接合することができる。
【００１３】
【発明の効果】以上詳述した如く、本発明の管継手は、
継手本体を一方の合成樹脂管と同種の合成樹脂で形成す
ると共に、その一端に第１継手部を設け、また継手本体
の他端に他方の合成樹脂管と同種の合成樹脂からなる第
２継手部を設けたので、異なる合成樹脂からなる管を強
固に融着接合することができる。また、継手部の接合面
に電熱線が埋設されていると、電熱線に通電して発熱さ
せるだけで融着接合できるので、現場での配管施工が簡
単、かつ確実に行える。
【図面の簡単な説明】
【図１】図１は本発明の一実施例を示す管継手の半断面
図である。
【図２】図２は本発明の他の実施例を示す半断面図であ
る。
【図３】図３は更に本発明の他の実施例を示す半断面図
である。
【符号の説明】
１ 継手本体 １１ 第１継手部 １２ 第２継手部 ２ 電熱線 Ｐ1 ，Ｐ2 合成樹脂管

Claims (1)

    【特許請求の範囲】
  1. 【請求項１】 異なる合成樹脂からなる管（Ｐ1 ），
    （Ｐ2 ）を接続する管継手であって、継手本体（１）を
    一方の合成樹脂管（Ｐ1 ）と同種の合成樹脂で形成する
    と共に、その一端に第１継手部（１１）を設け、また継
    手本体（１）の他端に他方の合成樹脂管（Ｐ2 ）と同種
    の合成樹脂からなる第２継手部（１２）を設けてその接
    合面に電熱線（２）を埋設したことを特徴とする管継
    手。
JP8189355A 1996-07-18 1996-07-18 合成樹脂製管継手 Pending JPH1030781A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8189355A JPH1030781A (ja) 1996-07-18 1996-07-18 合成樹脂製管継手

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8189355A JPH1030781A (ja) 1996-07-18 1996-07-18 合成樹脂製管継手

Publications (1)

Publication Number Publication Date
JPH1030781A true JPH1030781A (ja) 1998-02-03

Family

ID=16239947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8189355A Pending JPH1030781A (ja) 1996-07-18 1996-07-18 合成樹脂製管継手

Country Status (1)

Country Link
JP (1) JPH1030781A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014205453A1 (en) * 2013-06-22 2014-12-24 Jones Mark L Connection fitting for connecting thermoplastic pipes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014205453A1 (en) * 2013-06-22 2014-12-24 Jones Mark L Connection fitting for connecting thermoplastic pipes
US9285063B2 (en) 2013-06-22 2016-03-15 Mark L. Jones Connection fitting for connecting thermoplastic pipes

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