JPH01114419A - Fusing plug - Google Patents

Fusing plug

Info

Publication number
JPH01114419A
JPH01114419A JP62273908A JP27390887A JPH01114419A JP H01114419 A JPH01114419 A JP H01114419A JP 62273908 A JP62273908 A JP 62273908A JP 27390887 A JP27390887 A JP 27390887A JP H01114419 A JPH01114419 A JP H01114419A
Authority
JP
Japan
Prior art keywords
thermocouple
connector
plastic pipe
fusion
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
JP62273908A
Other languages
Japanese (ja)
Inventor
Hiroshi Oya
博 大矢
Takeshi Kato
健 加藤
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 filed Critical Hitachi Metals Ltd
Priority to JP62273908A priority Critical patent/JPH01114419A/en
Publication of JPH01114419A publication Critical patent/JPH01114419A/en
Priority to US07/467,341 priority patent/US5150923A/en
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
    • 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
    • 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
    • B29C66/90—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
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91212—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods involving measurement means being part of the welding jaws, e.g. integrated in the welding jaws
    • 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
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91221—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the parts to be joined
    • 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
    • B29C66/90—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To exchange a thermocouple or the like easily if it is broken, by connecting the connection section of the thermocouple to that of a lead wire with a connection in a freely detachable manner. CONSTITUTION:A thermocouple 41 and a connector bush 43 are respectively connected to a lead wire 53 and a conduction cable 54 with a connector housing 51 and a female connector 52 in a freely detachable manner. In order to protect the connector part, a holder 4 and a rubber cap 5 form a structure by which the holder 4 and the rubber cap 5 are matched through a projection and a recess on inner and outer peripheries also in a freely detachable manner. By the use of the freely detachable structures the thermocouple 41 and the connector bush 43 are easily exchanged if they are broken.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、プラスチック管とプラスチック管継手を電気
融着して接続する電気融着式プラスチック管継手の電気
接続部に用いる融着プラグに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fusion plug used in an electrical connection part of an electrofusion type plastic pipe joint that connects a plastic pipe and a plastic pipe joint by electrical fusion.

〔従来の技術〕[Conventional technology]

一般的な電気融着式のプラスチック管継手を第４図に基
づいて説明する。A general electric fusion type plastic pipe joint will be explained based on FIG. 4.

第４図は接続しようとする２本のプラスチック管２を、
プラスチック管継手１の両端から挿入した状態を示して
おり、このプラスチック管継手ｌはソケット型でプラス
チック管を一直線に接続するものである。Figure 4 shows two plastic pipes 2 to be connected.
The plastic pipe joint 1 is shown inserted from both ends, and this plastic pipe joint 1 is of a socket type and connects plastic pipes in a straight line.

第４図に示すようにプラスチック管継手１にプラスチッ
ク管２、をプラスチック管継手１の内周面に形成したパ
イプストッパー１４に接触するまで挿入しコントロール
ボックス（図示していない、）とプラスチック管継手１
の各コネクターピン１３とを配線接続する。As shown in Fig. 4, insert the plastic pipe 2 into the plastic pipe fitting 1 until it contacts the pipe stopper 14 formed on the inner peripheral surface of the plastic pipe fitting 1, and then connect the control box (not shown) and the plastic pipe fitting 1. 1
Wiring connection is made to each connector pin 13 of.

そして、コントロールボックスを介してプラスチック管
継手１に通電を行い、この通電による電熱線１２の発熱
により、プラスチック管継手１とプラスチック管２を融
着して接続するものである。Then, the plastic pipe joint 1 is energized via the control box, and the heat generated by the heating wire 12 due to this energization causes the plastic pipe joint 1 and the plastic pipe 2 to be fused and connected.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

以上説明した融着方法においては、プラスチック管継手
のサイズおよびその周囲の温度による通電時間の設定が
重要であり、それらプラスチック管継手のサイズおよび
その周囲の温度についての種々のデータに基づく最適な
長さの通電時間を設定しなければならない。In the fusion method explained above, it is important to set the energization time according to the size of the plastic pipe joint and the temperature around it, and the optimum length is determined based on various data about the size of the plastic pipe joint and the temperature around it. The energization time must be set.

このため本件出願人は先に、第３図に示すようにプラス
チック管継手に凹み部を設け、その凹みに熱電対を挿入
して融着時のプラスチック管継手の温度上昇を測定して
通電を制御する方法を提案している。For this reason, the applicant first provided a recess in the plastic pipe joint as shown in Figure 3, inserted a thermocouple into the recess, measured the temperature rise of the plastic pipe joint during welding, and turned on electricity. We are proposing a method of control.

しかしながら第３図に示すようにこのものは熱電対とコ
ネクターを一体にしてプラスチック管継手本体の温度を
測定する融着プラグ方式であるので、熱電対またはコネ
クターブツシュのどちらか一方が破損した場合、測温ま
たは通電機能が失なわれ、融着プラグ全体を取り換えな
ければならないという問題点がある。However, as shown in Figure 3, this is a fusion plug method that measures the temperature of the plastic pipe fitting body by integrating the thermocouple and connector, so if either the thermocouple or the connector bushing is damaged, However, there is a problem in that the temperature measuring or energizing function is lost and the entire fusion plug must be replaced.

本発明の目的は破損部分だけの取換を容易にかつ確実に
行なえる事を可能とする融着プラグを提供することであ
る。An object of the present invention is to provide a fusion plug that allows only the damaged part to be replaced easily and reliably.

〔問題点を解決するための手段〕[Means for solving problems]

上記目的を達成するために本発明は熱電対とコネクター
ブツシュとを一体に保持するゴムホルダーと、熱電対の
リード線と通電ケーブルを保持するゴムキャップとから
なり、ゴムホルダーの外周部に形成した凹部または凸部
と該凹部または凸部に対応してゴムキャップの内周部に
形成された凸部または凹部によってはめ合わせて結合さ
れ、かつ熱電対とリード線、コネクターブツシュと通電
ケーブルの間をそれぞれコネクターで着脱可能に連結し
たことを特徴とするものである。To achieve the above object, the present invention consists of a rubber holder that holds a thermocouple and a connector bushing together, and a rubber cap that holds the thermocouple lead wire and energizing cable, and is formed on the outer periphery of the rubber holder. The thermocouple, the lead wire, the connector bushing, and the current-carrying cable are fitted and connected by a concave or convex portion formed on the inner circumference of the rubber cap corresponding to the concave or convex portion, and This feature is characterized in that they are removably connected by connectors.

本発明による融着プラグは、熱電対とリード線及び、コ
ネクターブツシュとケーブルを各々コネクターで着脱可
能に連結し、前記熱電対またはコネクターブツシュのい
ずれかが破損した場合も破損部分だけの取換を可能にす
るという利点を有する。The fusion plug according to the present invention removably connects a thermocouple, a lead wire, and a connector bushing to a cable using a connector, and even if either the thermocouple or the connector bushing is damaged, only the damaged part can be removed. It has the advantage of allowing for exchange.

〔実施例〕〔Example〕

本発明による融着プラグと、プラスチック管継手の接続
方法の実施例を第１図に示す、第１図はプラスチック管
継手１の一端部とプラスチック管２との接続部分を示す
縦断面図である。第１図を用いて、本発明の接続方法を
説明する。An embodiment of the method for connecting a fusion plug and a plastic pipe joint according to the present invention is shown in FIG. 1. FIG. 1 is a longitudinal cross-sectional view showing a connecting portion between one end of a plastic pipe joint 1 and a plastic pipe 2. . The connection method of the present invention will be explained using FIG.

プラスチック管継手ｌのコネクターピン１３に融着プラ
グ３を挿入し、接続する。ここで融着プラグ３は、プラ
スチック管継手ｌのコネクターピン１３と嵌合する穴を
持ち、ブツシュケース４４で保護されたコネクターブツ
シュ４３と、これとほぼ平行な位置関係にあって熱電対
ケース４２により保護された熱電対４１を一体に保持す
るホルダー４と、リード線５３と通電ケーブル５４とを
保持するゴムキャップ５とからなる。この融着プラグ３
をプラスチック管継手１のコネクターピン１３に挿入し
接続することは、同コネクターピン１３に融着プラグ３
のコネクターブツシュ４３を嵌合することである。この
プラスチック管継手ｌに融着プラグ３を接続したとき融
着プラグ３に保持した熱電対４１の下端部はプラスチッ
ク管継手１の熱電対用の穴１５の中に入っており、その
最下端部は熱電対用の穴１５の底と軽く接触している。Insert the fusion plug 3 into the connector pin 13 of the plastic pipe joint 1 and connect it. Here, the fusion plug 3 has a hole that fits into the connector pin 13 of the plastic pipe fitting l, and is located almost parallel to the connector bushing 43 protected by the bushing case 44, and is connected to the thermocouple. It consists of a holder 4 that integrally holds a thermocouple 41 protected by a case 42, and a rubber cap 5 that holds a lead wire 53 and a current-carrying cable 54. This fusion plug 3
Inserting and connecting the connector pin 13 of the plastic pipe joint 1 means inserting the fusion plug 3 into the connector pin 13.
This is to fit the connector bushing 43 of the connector. When the fusion plug 3 is connected to the plastic pipe fitting 1, the lower end of the thermocouple 41 held in the fusion plug 3 is inserted into the thermocouple hole 15 of the plastic pipe fitting 1, and the lowermost end thereof is in light contact with the bottom of the thermocouple hole 15.

この熱電対用穴１５の底は、この底面から電熱線１２ま
での長さが電熱線１２からプラスチック管継手本体１１
の内周面までの長さより多少大きくなる位置にある。The bottom of this thermocouple hole 15 is such that the length from the bottom surface to the heating wire 12 is from the heating wire 12 to the plastic pipe joint body 11.
It is located at a position that is slightly larger than the length to the inner peripheral surface of.

次に第１図および第２図を用いて、上記融着プラグ３に
ついて熱電対４１とコネクターブツシュ４４の取換え方
法を説明する。第２図は第１図の融着プラグ３よりホル
ダ一部４を取りはずしたゴムキャップ５全体の縦断面図
である。Next, a method for replacing the thermocouple 41 and connector bushing 44 of the fusion plug 3 will be explained using FIGS. 1 and 2. FIG. 2 is a longitudinal sectional view of the entire rubber cap 5 with the holder part 4 removed from the fusion plug 3 of FIG. 1.

この融着プラグは熱電対４１とリード線５３゜コネクタ
ーブツシュ４３と通電ケーブル５４がそれぞれコネクタ
ーハウジング５１と通電用メス接続子５２のコネクター
により着脱可能である。またホルダー４とゴムキャップ
５はコネクタ一部分を保護するために内周と外周の凹凸
によりはめ合わせて構成されることによりホルダー４と
ゴムキャップ５とは着脱が可能である。In this fusion plug, a thermocouple 41, a lead wire 53.degree. connector bush 43, and a current-carrying cable 54 can be attached and detached via connectors of a connector housing 51 and a female current-carrying connector 52, respectively. Further, the holder 4 and the rubber cap 5 are configured to fit together by unevenness on the inner and outer peripheries in order to protect a portion of the connector, so that the holder 4 and the rubber cap 5 can be attached and detached.

取換方法としては、まず第２図のようにホルダー４から
ゴムキャップ５を分離し、続いてコネクターハンジング
５１、通電用メス接続端子５２をそれぞれ熱電対４１、
コネクターブツシュ４３から取りはずす。To replace the rubber cap 5, first separate the rubber cap 5 from the holder 4 as shown in Figure 2, then attach the connector hanging 51 and the female connection terminal 52 to the thermocouple 41, respectively.
Remove from connector bushing 43.

第２番目に熱電対ケース４２と一体になっている熱電対
４１のホルダー４より露出している部分を持って引き抜
き、コネクターブツシュ４３の場合はコネクターブツシ
ュと一体になっているブツシュケースをホルダー４の上
または下に移動させて引き抜き、連結ピン４５を抜いて
ブツシュケース４４とコネクターブツシュ４３を分離す
る。Second, hold the exposed part of the thermocouple 41 that is integrated with the thermocouple case 42 and pull it out from the holder 4, and in the case of the connector bushing 43, pull it out from the bushing case that is integrated with the connector bushing. is moved above or below the holder 4 and pulled out, and the connecting pin 45 is removed to separate the bushing case 44 and the connector bushing 43.

第３番目に熱電対ケースと一体になった新しい熱電対を
ホルダー４に入れ、またコネクターブツシュの場合は新
しいコネクターブツシュをブツシュケースに入れ、それ
ぞれ上記逆の順序で組立てることにより取換は完了する
。Third, place the new thermocouple that is integrated with the thermocouple case into the holder 4, and if it is a connector bushing, put the new connector bushing into the bushing case, and replace them by assembling them in the reverse order above. is completed.

以上説明した本実施例による融着プラグによれば融着時
の継手本体の温度測定が可能であり、熱電対４１または
コネクターブツシュ４３が破損した場合、それらの取換
が容易にかつ確実に行なう事ができる。According to the fusion plug according to the embodiment described above, it is possible to measure the temperature of the joint body during fusion, and if the thermocouple 41 or connector bushing 43 is damaged, they can be easily and reliably replaced. I can do it.

〔発明の効果〕〔Effect of the invention〕

本発明による融着プラグは、特に破損しゃすい熱電対、
コネクターブツシュの取換を容易にかつ確実に行なうこ
とができる。The fusion plug according to the invention is particularly useful for thermocouples and
Connector bushings can be easily and reliably replaced.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明による実施例を示す縦断面図、第２図は
第１図の融着プラグよりホルダ一部を取り外したゴムキ
ャップ全体の縦断面図、第３図は第１図の融着プラグに
対し、単に熱電対とコネクターブツシュを一体にした融
着プラグを使用した場合の縦断面図、第４図は従来例を
示す縦断面図である。 電熱線 第１図 第２ｖｌｉFIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the entire rubber cap from which the holder is partially removed from the fusion plug shown in FIG. 1, and FIG. FIG. 4 is a longitudinal sectional view showing a conventional example in which a fusion plug that simply integrates a thermocouple and a connector bushing is used as opposed to a bonded plug. Heating wire Figure 1 Figure 2 vli

Claims (1)

【特許請求の範囲】[Claims] 内周面に埋設した電熱線の両端に各々接続したコネクタ
ーピンを外周面より突出させたプラスチック管継手に、
プラスチック管を挿入し、前記コネクターピンを介して
通電することによりプラスチック管を融着する電気融着
式プラスチック管継手に使用する融着プラグにおいて、
熱電対とコネクターブッシュとを一体に保持するゴムホ
ルダーと、熱電対のリード線と通電ケーブルを保持する
ゴムキャップとからなり、ゴムホルダーの外周部に形成
した凹部または凸部と該凹部または凸部に対応してゴム
キャップの内周部に形成された凸部または凹部によって
はめ合わせて結合され、かつ熱電対とリード線、コネク
ターブッシュと通電ケーブルの間をそれぞれコネクター
で着脱可能に連結したことを特徴とする融着プラグ。A plastic pipe joint with connector pins connected to both ends of heating wires buried in the inner circumferential surface protruding from the outer circumferential surface,
A fusion plug used in an electric fusion type plastic pipe joint that fuses a plastic pipe by inserting the plastic pipe and applying electricity through the connector pin,
It consists of a rubber holder that holds the thermocouple and the connector bush together, and a rubber cap that holds the thermocouple lead wire and the current-carrying cable. The thermocouple and the lead wire, and the connector bush and the current-carrying cable are connected removably by connectors, respectively, and are fitted and connected by a convex part or a concave part formed on the inner circumference of the rubber cap corresponding to the above. Features a fusion plug.
JP62273908A 1987-06-29 1987-10-29 Fusing plug Pending JPH01114419A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62273908A JPH01114419A (en) 1987-10-29 1987-10-29 Fusing plug
US07/467,341 US5150923A (en) 1987-06-29 1990-01-22 Plastic pipe joint assembly for joining sections of plastic pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62273908A JPH01114419A (en) 1987-10-29 1987-10-29 Fusing plug

Publications (1)

Publication Number Publication Date
JPH01114419A true JPH01114419A (en) 1989-05-08

Family

ID=17534247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62273908A Pending JPH01114419A (en) 1987-06-29 1987-10-29 Fusing plug

Country Status (1)

Country Link
JP (1) JPH01114419A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994008278A1 (en) * 1992-10-07 1994-04-14 Wavin B.V. Electrically weldable thermoplastic joining element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994008278A1 (en) * 1992-10-07 1994-04-14 Wavin B.V. Electrically weldable thermoplastic joining element

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