JPH08334195A - 栓体を内蔵した電気融着継手 - Google Patents

栓体を内蔵した電気融着継手

Info

Publication number
JPH08334195A
JPH08334195A JP7140639A JP14063995A JPH08334195A JP H08334195 A JPH08334195 A JP H08334195A JP 7140639 A JP7140639 A JP 7140639A JP 14063995 A JP14063995 A JP 14063995A JP H08334195 A JPH08334195 A JP H08334195A
Authority
JP
Japan
Prior art keywords
pipe
joint
plug
electric fusion
pipe connecting
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
JP7140639A
Other languages
English (en)
Inventor
Ryuichiro Nakamura
隆一郎 中村
Kazunori Umeda
一徳 梅田
Keisuke Asakura
啓介 朝倉
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 JP7140639A priority Critical patent/JPH08334195A/ja
Publication of JPH08334195A publication Critical patent/JPH08334195A/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
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/561—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using screw-threads being integral at least to one 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
    • 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
    • B29C66/5223—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
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-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
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/55—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 sealing elements being incorporated into the joints, e.g. gaskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F16L47/03—Welded joints with an electrical resistance incorporated in the joint
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/11—Plugs
    • F16L55/1116—Plugs glued or welded
    • 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)
  • General Engineering & Computer Science (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Pipe Accessories (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

(57)【要約】 【目的】 管端を閉塞するためのキャップとしての機能
と、管を接続するための継手としての機能を兼ね備え、
更にはエアー抜きが容易に行なえる電気融着継手を提供
する。 【構成】 合成樹脂製継手本体１の一端部に受口１１を
設けて該受口１１の内周面に電熱線２を埋設する。ま
た、継手本体１の他端部に管接続部１２を設け、該管接
続部１２に栓体３を着脱自在に装着する。 【効果】 電熱線を発熱させるだけで、継手本体の一端
に合成樹脂管を簡単かつ確実に接続できる。また、継手
本体の他端部に栓体を装着して管端部を閉塞したり、取
り外してエアー抜きが行え、配管ラインの延長・増設も
容易である。

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、管端を閉塞するための
キャップとしての機能と、管を接続するための継手とし
ての機能を兼ね備え、更にはエアー抜きが容易に行なえ
る電気融着継手に関する。
【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、この合成樹脂管の接続には電熱線の発熱によ
って管同志を融着接続する電気融着継手が使用されてい
る。
【０００３】
【発明が解決しようとする課題】この電気融着継手は、
合成樹脂からなる継手本体の両端部に受口を設けると共
に、それぞれの受口内周面に電熱線を埋設したものであ
って、この電気融着継手を用いて管端を閉塞する場合に
は、この電気融着継手のほかに短管と、キャップとを準
備し、合成樹脂管の端部に電気融着継手を融着接合して
から該電気融着継手の他端部に短管を介してキャップを
接続していた。ところが、この管端閉塞の場合には、継
手以外の部品が必要となるためコストアップとなるだけ
でなく、閉塞作業に手間がかかるということがあった。
【０００４】なお、合成樹脂管の端部を閉塞するだけで
あれば、管端部にキャップを接続するだけでよいが、こ
のキャップによる管端閉塞では配管ラインを延長した
り、増設する必要が生じたとき管の接続が行えない。ま
た、配管施工後、管内に滞留したエアーを排出してガス
等を輸送するとき、エアーの排出が旨く行えないという
別の問題が発生する。
【０００５】本発明はかかる課題を解決したものであっ
て、管端を閉塞するためのキャップとしての機能と、管
を接続するための継手としての機能を兼ね備え、更には
管内に滞留したエアーの排出がスムースに行なえる電気
融着継手を提供するものである。
【０００６】
【課題を解決するための手段】本発明の電気融着継手
は、合成樹脂製継手本体の一端部に受口を設けて該受口
の内周面に電熱線を埋設し、また継手本体の他端部に管
接続部を設けて該管接続部に栓体を着脱自在に装着した
ことを特徴とする。
【０００７】
【作用】現場での配管施工の際、継手本体の一端部に設
けた受口に合成樹脂管の端部を嵌挿してから電熱線を発
熱させて融着接合する。そして、継手本体の他端部に設
けた管接続部に栓体を装着するだけで、配管ラインの管
端部を閉塞できる。また、配管施工後に栓体を取り外し
て管内に滞留したエアーを排出することができ、更には
栓体を取り外して管接続部に管を接続すれば、配管ライ
ンを延長したり、増設できる。
【０００８】
【実施例】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電気融着継手の断
面図、図２は本発明の他の実施例を示す電気融着継手の
断面図、図３及び図４は更に本発明の他の実施例を示す
断面図であって、図中の符号１はリエチレン、ポリブテ
ン等の合成樹脂からなる継手本体、２はニクロム線等の
電熱線、３は栓体である。
【０００９】まず、図１に示した実施例について説明す
る。この実施例の電気融着継手は継手本体１の一端部に
受口１１を設け、その他端部を縮径して管接続部１２と
したソケット継手である。前記受口１１の内周面には電
熱線２が螺旋状に所定間隔で埋設されており、該電熱線
２の両端部が継手本体１の外周に突設した端子ピン２１
と接続している。また、管接続部１２の内周面にも前記
同様に電熱線２が埋設されており、該電熱線２の両端部
が継手本体１の外周に突設した端子ピン２１と接続して
いる。そして、前記管接続部１２に栓体３が着脱自在に
装着されている。
【００１０】栓体３は本体部３１の一端部にフランジ３
２を設けた構成からなっており、本体部３１の先端外周
に装着したパッキン３３ａが管接続部１２の内周面に圧
接し、またフランジ３２面に装着したパッキン３３ｂが
管接続部１２の端面に圧接して継手本体１の端部を気密
に閉塞できるようになっている。
【００１１】この電気融着継手を用いて配管ラインの端
部を閉塞する場合、継手本体１の受口１１に合成樹脂管
４の端部を嵌挿してから電熱線２を発熱させて融着接合
する。そして、継手本体１の他端部に設けた管接続部１
２に栓体３を装着して管端部を閉塞する。一方、配管施
工後にガス等を輸送するとき、栓体３を取り外して管内
に滞留したエアーを排出してから再度栓体３を装着す
る。また、配管ラインを延長したり、増設する際には栓
体３を取り外して管接続部１２に合成樹脂管を嵌挿し、
電熱線２を発熱させて融着接合する。
【００１２】図２に示した電気融着継手は、前記実施例
と同様に受口１１の内周面に電熱線２を埋設し、他端部
の管接続部１２の内周面に雌ねじを設けて該雌ねじに栓
体３の本体部３１に設けた雄ねじを着脱自在に螺合でき
るようにしたものである。そして、管接続部１２に栓体
３を螺合したとき、本体部３１の先端外周に装着したパ
ッキン３３ａが管接続部１２の内周面に圧接し、またフ
ランジ３２面に装着したパッキン３３ｂが管接続部１２
の端面に圧接して継手本体１の端部を気密に閉塞するよ
うになっている。この実施例の電気融着継手は管接続部
１２に雌ねじが設けられているので、配管ラインを延長
したり、増設する際に管を螺合接続できるという利点が
ある。
【００１３】図３に示した電気融着継手は継手本体１の
中央に枝管部１３を突設してチーズ継手としたものであ
って、継手本体１の一端部に設けた受口１１の内周面、
他端部に設けた管接続部１２の内周面、及び枝管部１３
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の両端部は端子ピン２１と接続している。そ
して、継手本体１の管接続部１２に栓体３が着脱自在に
装着されており、枝管部１３に合成樹脂管４を融着接合
できるようになっている。この実施例の場合には、管接
続部１２から栓体３を取り外して合成樹脂管を融接合す
ることもでき、また枝管部１３に図示しない栓体を着脱
自在に装着して管内に滞留したエアーを排出することも
できる。
【００１４】図４に示した電気融着継手は、図３に示し
たチーズ継手の枝管部１３の内周面に雌ねじを設けて該
雌ねじに管を螺合接合したり、雄ねじを有する栓体を着
脱自在に螺合できるようにしたものである。この実施例
の場合も、前記同様に配管ラインの管端部を閉塞した
り、管内に滞留したエアーの排出が容易に行なえ、配管
施工後に配管ラインの延長・増設も簡単に行なえる。
【００１５】
【発明の効果】以上詳述した如く、本発明の電気融着継
手は、継手本体の一端部に設けた受口の内周面に電熱線
を埋設したので、該受口に合成樹脂管の端部を嵌挿して
から電熱線を発熱させるだけで確実、かつ強固に融着接
合できる。また、継手本体の他端部に設けた管接続部に
栓体を装着して配管ラインの端部を閉塞したり、配管施
工後に栓体を取り外して管内に滞留したエアーを排出す
ることもできる。更には、栓体を取り外して管接続部に
管を接続するだけで、配管ラインを簡単に延長したり、
増設できるという実用上極めて優れた効果を奏するもの
である。
【図面の簡単な説明】
【図１】図１は本発明の一実施例を示す電気融着継手の
断面図である。
【図２】図２は本発明の他の実施例を示す電気融着継手
の断面図である。
【図３】図３は更に本発明の他の実施例を示す電気融着
継手の断面図である。
【図４】図４は更に本発明の他の実施例を示す電気融着
継手の断面図である。
【符号の説明】
１ 継手本体 １１ 受口 １２ 管接続部 ２ 電熱線 ３ 栓体

Claims (3)

    【特許請求の範囲】
  1. 【請求項１】 合成樹脂製継手本体（１）の一端部に受
    口（１１）を設けて該受口（１１）の内周面に電熱線
    （２）を埋設し、また継手本体（１）の他端部に管接続
    部（１２）を設けて該管接続部（１２）に栓体（３）を
    着脱自在に装着したことを特徴とする栓体を内蔵した電
    気融着継手。
  2. 【請求項２】 管接続部（１２）の内周面に電熱線
    （２）を埋設し、該管接続部（１２）に栓体（３）を着
    脱自在に装着したことを特徴とする請求項１記載の栓体
    を内蔵した電気融着継手。
  3. 【請求項３】 管接続部（１２）の内周面に雌ねじを設
    け、該雌ねじに雄ねじを有する栓体（３）を着脱自在に
    螺合したことを特徴とする請求項１記載の栓体を内蔵し
    た電気融着継手。
JP7140639A 1995-06-07 1995-06-07 栓体を内蔵した電気融着継手 Pending JPH08334195A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7140639A JPH08334195A (ja) 1995-06-07 1995-06-07 栓体を内蔵した電気融着継手

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7140639A JPH08334195A (ja) 1995-06-07 1995-06-07 栓体を内蔵した電気融着継手

Publications (1)

Publication Number Publication Date
JPH08334195A true JPH08334195A (ja) 1996-12-17

Family

ID=15273361

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7140639A Pending JPH08334195A (ja) 1995-06-07 1995-06-07 栓体を内蔵した電気融着継手

Country Status (1)

Country Link
JP (1) JPH08334195A (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6283078B1 (en) 1998-09-01 2001-09-04 Daihatsu Motor Co. Ltd. Inertia charge intake manifold for multi-cylinder internal combustion engine and connecting method for branch pipes of intake manifold
JP2008248946A (ja) * 2007-03-29 2008-10-16 Mitsui Kagaku Sanshi Kk ガス管工事における管端末の封止工法及びキャップ継手
JP2009097657A (ja) * 2007-10-18 2009-05-07 Hitachi Metals Ltd 電気融着プラグ及び管端の処理方法
WO2010074903A1 (en) 2008-12-22 2010-07-01 Tdw Delaware, Inc. Fusible completion plug
GB2472831A (en) * 2009-08-20 2011-02-23 Radius Systems Ltd Method of sealing a plastics pipe and apparatus therefor
EP3483492A1 (de) * 2017-11-09 2019-05-15 Westnetz GmbH Fittingsystem zur einführung einer glasfasertransportleitung in eine gasleitung, system mit einem solchen fittingsystem und verfahren zum verlegen einer glasfasertransportleitung

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6283078B1 (en) 1998-09-01 2001-09-04 Daihatsu Motor Co. Ltd. Inertia charge intake manifold for multi-cylinder internal combustion engine and connecting method for branch pipes of intake manifold
US6371070B2 (en) 1998-09-01 2002-04-16 Daihatsu Motor Co., Ltd. Inertia charge intake manifold for multi-cylinder internal combustion engine and connecting method for branch pipes of intake manifold
JP2008248946A (ja) * 2007-03-29 2008-10-16 Mitsui Kagaku Sanshi Kk ガス管工事における管端末の封止工法及びキャップ継手
JP2009097657A (ja) * 2007-10-18 2009-05-07 Hitachi Metals Ltd 電気融着プラグ及び管端の処理方法
WO2010074903A1 (en) 2008-12-22 2010-07-01 Tdw Delaware, Inc. Fusible completion plug
EP2379930A1 (en) * 2008-12-22 2011-10-26 Tdw Delaware, Inc. Fusible completion plug
US8262838B2 (en) 2008-12-22 2012-09-11 Tdw Delaware Inc. Fusible completion plug
EP2379930A4 (en) * 2008-12-22 2014-07-30 Tdw Delaware Inc fusible
GB2472831A (en) * 2009-08-20 2011-02-23 Radius Systems Ltd Method of sealing a plastics pipe and apparatus therefor
GB2472831B (en) * 2009-08-20 2011-12-28 Radius Systems Ltd Method of sealing a plastics pipe and apparatus therefor
EP3483492A1 (de) * 2017-11-09 2019-05-15 Westnetz GmbH Fittingsystem zur einführung einer glasfasertransportleitung in eine gasleitung, system mit einem solchen fittingsystem und verfahren zum verlegen einer glasfasertransportleitung

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