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JP2714773B2 - Electrofusion fittings - Google Patents

Electrofusion fittings

Info

Publication number
JP2714773B2
JP2714773B2 JP7138541A JP13854195A JP2714773B2 JP 2714773 B2 JP2714773 B2 JP 2714773B2 JP 7138541 A JP7138541 A JP 7138541A JP 13854195 A JP13854195 A JP 13854195A JP 2714773 B2 JP2714773 B2 JP 2714773B2
Authority
JP
Japan
Prior art keywords
joint
pipe
heating wire
band
electrofusion
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.)
Expired - Fee Related
Application number
JP7138541A
Other languages
Japanese (ja)
Other versions
JPH08303674A (en
Inventor
原 祥 皓 福
Original Assignee
東亜高級継手バルブ製造株式会社
有限会社イーエフテクノ
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 東亜高級継手バルブ製造株式会社, 有限会社イーエフテクノ filed Critical 東亜高級継手バルブ製造株式会社
Priority to JP7138541A priority Critical patent/JP2714773B2/en
Publication of JPH08303674A publication Critical patent/JPH08303674A/en
Application granted granted Critical
Publication of JP2714773B2 publication Critical patent/JP2714773B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining 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"
    • B29C65/3404Joining 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
    • B29C65/342Joining 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
    • B29C65/3432Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining 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"
    • B29C65/3468Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining 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"
    • B29C65/3472Joining 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
    • B29C65/3476Joining 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
    • B29C65/348Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841Holding or clamping means for handling purposes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122Joint 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
    • B29C66/1222Joint 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122Joint 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
    • B29C66/1224Joint 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5224Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52291Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52297Joining tubular articles involving the use of a socket said socket comprising slip-off prevention means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/96Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/967Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes
    • B29C66/9674Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes involving special data outputs, e.g. special data display means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は上下水道やガスの配管と
して使用される熱可塑性合成樹脂製の管の接合に用いる
エレクトロフュージョン継手に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrofusion joint used for joining thermoplastic synthetic resin pipes used as pipes for water supply and sewage and gas.

【0002】[0002]

【従来の技術】エレクトロフュージョン継手は、熱可塑
性合成樹脂製の継手(管がポリエチレン製の場合、継手
もポリエチレン製である)の管との接触面に電熱線を埋
め込んだものであり、この電熱線に電力を供給すること
によって樹脂を加熱融着させ、管と継手の融着を行う。
融着の際には樹脂の熱膨張により継手内部の圧力が高ま
り、この圧力が管を継手から押し出す力として作用する
ため、従来では治具を用いて管と継手または接合する管
同士を連結し、管の抜け止めを行っていた。
2. Description of the Related Art An electrofusion joint has a heating wire embedded in a contact surface of a joint made of a thermoplastic synthetic resin (when the tube is made of polyethylene, the joint is also made of polyethylene). The resin is heated and fused by supplying electric power to the heating wire, and the tube and the joint are fused.
During fusion, the pressure inside the joint increases due to the thermal expansion of the resin, and this pressure acts as a force to push the pipe out of the joint.Conventionally, the jig is used to connect the pipe to the joint or the pipe to be joined. , To keep the pipe from coming off.

【0003】[0003]

【発明が解決しようとする課題】前記従来技術は、継手
の様々な種類やサイズに対応できるように、その種類や
サイズごとの抜け止め治具を保有し、且つ、持ち運ぶこ
とを配管業者に強いることになり、また現在そのように
なっている。
According to the above prior art, a plumbing company is required to hold and carry a retaining jig for each type and size so as to correspond to various types and sizes of joints. That's what it is and now it is.

【0004】本発明は、従来のような治具を用いなくて
も管の抜け止めを行い得るエレクトロフュージョン継手
を提供することを目的としている。
[0004] It is an object of the present invention to provide an electrofusion joint that can prevent a pipe from coming off without using a conventional jig.

【0005】[0005]

【課題を解決するための手段】上記の目的を達成するた
めに本発明のエレクトロフュージョン継手は、継手の管
との接触面に電熱線を埋設し、電熱線に電力を供給する
ことによって樹脂を加熱溶融させ、管と継手の融着を行
うエレクトロフュージョン継手において、管端部を差し
込む継手の受け口部の開口端部に、軸方向及び周方向の
割り溝によって形成する締め付けバンドを設け、該バン
ドの内面を管外面に締め付けて管と継手との融着を行う
ようにしたものである。
In order to achieve the above object, an electrofusion joint according to the present invention has a heating wire embedded in a contact surface of the joint with a pipe, and a resin is supplied by supplying power to the heating wire. In an electrofusion joint that heats and melts and fuses a pipe and a joint, axially and circumferentially,
A fastening band formed by the split groove is provided.
Tighten the inner surface of the pipe to the outer surface of the pipe to fuse the pipe and the joint
It is like that .

【0006】[0006]

【作 用】継手の受け口部に管端部を差し込むと共に、
前記受け口部の開口端部に一体成形された締め付けバン
の内面を管外面に締め付け、電熱線に電力を供給する
ことによって樹脂を加熱溶融させ、管と継手の融着を行
うことによって、専用の治具を用いることなく継手の締
付けバンドで管の抜け止めを行い得ると共に、該締め
付けバンドは管と継手の隙間からの溶融樹脂の流出並び
に放熱を抑え、融着品質の向上を図り得るものである。
[Operation] Insert the pipe end into the socket of the fitting,
Tightening van integrally formed at the open end of the socket portion
Tighten the inner surface of the de outside the tube surface, the resin is heated and melted by supplying electric power to the heating wire, by performing fusion of pipe and fittings, fittings tightened <br/> without using a dedicated jig The mounting band can be used to prevent the tube from coming off,
The attachment band can suppress the outflow and heat radiation of the molten resin from the gap between the pipe and the joint, and can improve the fusion quality.

【0007】[0007]

【実施例】以下本発明の実施例を図面に基づいて詳述す
る。図1は本発明に係る締め止め部の斜視図、図2は融
着方法の実体図であり、図中(1)はポリエチレン製の
T形のEF継手で、継手(1)の内部に電熱線を埋め込
んだものである。詳しくは図3にも示すように、上下水
道やガスの配管として使用されるポリエチレン管(3)
の端部を差し込む継手(1)の各受け口部(4)の内
面、すなわち管(3)との接触面に電熱線(5)が埋め
込まれている。この電熱線(5)はニッケル線またはニ
ッケル合金線を素線とし、表面をポリエチレンで被覆し
た被覆線が使用され、受け口部(4)の開口端側(管を
差し込む側)に電熱線(5)の両端を出すように、電熱
線(5)は二つ折り状態で受け口部(4)の開口端より
所定寸法内側に入った所から受け口部(4)の内面にコ
イル状に埋め込まれている。また電熱線(5)の両端に
は一対の端子(6)が接続され、両端子(6)は電熱線
(5)への電力供給を各受け口部(4)の開口端面(3
a)から行えるように、両端子(6)を受け口部(4)
の開口端面(3a)から軸方向に埋め込んでいる。さら
に前記両端子(6)間の受け口部(4)の開口端面(3
a)にEF継手(1)の品種判別用の端子(7)を設け
ている。従って各受け口部(4)の開口端面(3a)に
は3つの端子(6)(7)が近接して設けられている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a fastening portion according to the present invention, and FIG. 2 is a substantial view of a fusion bonding method. In FIG. 1, (1) is a T-shaped EF joint made of polyethylene, and an electric wire is provided inside the joint (1). It has embedded heat rays. Specifically, as shown in FIG. 3, a polyethylene pipe (3) used for water and sewage or gas pipes
A heating wire (5) is embedded in the inner surface of each socket (4) of the joint (1) into which the end of the joint (1) is inserted, that is, the contact surface with the pipe (3). As the heating wire (5), a nickel wire or a nickel alloy wire is used as a strand, and a coated wire whose surface is coated with polyethylene is used. The heating wire (5) is provided on the open end side (the side where the pipe is inserted) of the receptacle (4). ), The heating wire (5) is embedded in a coil shape on the inner surface of the receiving portion (4) from a place where the heating wire (5) enters a predetermined dimension inside the opening end of the receiving portion (4) in a folded state. . A pair of terminals (6) are connected to both ends of the heating wire (5), and both terminals (6) supply the power to the heating wire (5) with the open end faces (3) of the receptacles (4).
a) Receiving part (4) for both terminals (6) so that it can be performed from
Are embedded in the axial direction from the opening end face (3a). Further, the opening end face (3) of the receptacle (4) between the terminals (6).
The terminal (7) for discriminating the type of the EF joint (1) is provided in (a). Therefore, three terminals (6) and (7) are provided close to the opening end surface (3a) of each receptacle (4).

【0008】また図中(8)は電熱線(5)に電力を供
給する電源装置であるエレクトロフュージョンコントロ
ーラであり、自動融着制御用の電気(電子)回路基板や
変圧器など(図示省略)をコントロールボックス(9)
に内設すると共に、スタートスイッチ(10)、リセッ
トスイッチ(11)、液晶表示器(12)、漏電ブレー
カ(13)、電源ケーブル(14)を接続するためのコ
ネクタ(15)、継手(1)の電熱線(5)に電力を供
給するための接続ケーブル(16)を接続するためのコ
ネクタ(17)を前記コントロールボックス(9)の操
作面(9a)に配設している。
In the figure, reference numeral (8) denotes an electrofusion controller which is a power supply for supplying electric power to the heating wire (5), such as an electric (electronic) circuit board for automatic fusion control, a transformer, etc. (not shown). The control box (9)
And a connector (15) for connecting a start switch (10), a reset switch (11), a liquid crystal display (12), an earth leakage breaker (13), a power cable (14), and a joint (1). A connector (17) for connecting a connection cable (16) for supplying power to the heating wire (5) is disposed on the operation surface (9a) of the control box (9).

【0009】図4乃至図9にも示す如く、前記EF継手
(1)の各受け口部(3)の開口端部には、内面を管
(3)外面に締め付け可能な締め止め部(18)が一体
成形されている。
As shown in FIGS. 4 to 9, at the open end of each socket (3) of the EF joint (1), a fastening portion (18) capable of fastening an inner surface to an outer surface of the pipe (3) is provided. Are integrally formed.

【0010】該締め止め部(18)は割りせみ構造にな
っていて、受け口部(4)の開口端面(3a)から軸方
向に形成する第1の割り溝(19)と、該第1の割り溝
(19)の終端から連続して受け口部(4)の周方向に
形成する第2の割り溝(20)を設けると共に、受け口
部(4)の外面から内面に到達する第1の割り溝(1
9)は前記端子(6)(7)と反対側(180度異なる
位置)に設け、且つ、受け口部(4)の開口端面(4
a)から電熱線(5)埋め込み範囲までの寸法の略半分
の長さに設け、また受け口部(4)の外面から内面に到
達する第2の割り溝(20)は受け口部(4)の開口端
面(4a)と平行に設け、且つ第1の割り溝(19)終
端から前記端子(6)(7)側に向って、180°以内
で前記端子(6)(7)の取付け部の手前までの所定角
度(θ)(略135°)に設けるもので、前記第1及び
第2の割り溝(19)(20)によって各受け口部
(4)の開口端部に締め付けバンド(21)を形成して
いる。
The fastening portion (18) has a split structure, and includes a first split groove (19) formed in the axial direction from an opening end surface (3a) of the receiving portion (4), and the first split groove (19). A second split groove (20) is formed continuously from the end of the split groove (19) in the circumferential direction of the receiving portion (4), and a first split reaching the inner surface from the outer surface of the receiving portion (4). Groove (1
9) is provided on the opposite side (a position different by 180 degrees) from the terminals (6) and (7), and the opening end face (4) of the receptacle (4) is provided.
A second groove (20) extending from the outer surface to the inner surface of the receiving portion (4) is provided to have a length substantially half of the dimension from a) to the heating wire (5) embedded region. It is provided in parallel with the opening end face (4a), and is within 180 ° from the terminal end of the first split groove (19) toward the terminal (6) (7). It is provided at a predetermined angle (θ) (approximately 135 °) up to this side, and a tightening band (21) is attached to the opening end of each socket (4) by the first and second split grooves (19) and (20). Is formed.

【0011】また、前記バンド(21)の端部外面に可
動リブ(22)を一体形成すると共に、前記可動リブ
(22)に第1の割り溝(19)を挾んで対向させる固
定リブ(23)を受け口部(4)の開口端部に一体成形
し、対向する各リブ(22)(23)に軸孔(24)
(25)を介して挿入する締め付けボルト(26)を、
このボルト(26)に融着させるナット(27)によ
り、固定リブ(23)に可動リブ(22)を接近させる
ように締め付け、前記バンド(21)の内面を管(3)
の外面に締め付け、受け口部(4)に端部を差し込んだ
管(3)の軸方向の移動及び回転を規制し、管(3)の
抜け止めを行うように構成している。
A movable rib (22) is integrally formed on the outer surface of the end of the band (21), and a fixed rib (23) is opposed to the movable rib (22) with a first split groove (19) interposed therebetween. ) Is formed integrally with the opening end of the receiving part (4), and the opposing ribs (22) and (23) are provided with shaft holes (24).
The tightening bolt (26) inserted through (25)
With the nut (27) fused to the bolt (26), the movable rib (22) is tightened so as to approach the fixed rib (23), and the inner surface of the band (21) is connected to the pipe (3).
To restrict the axial movement and rotation of the tube (3), the end of which is inserted into the receptacle (4), to prevent the tube (3) from falling off.

【0012】本実施例は上記の如く構成するもので、図
2に示すようにEFコントローラ(8)の電源コード
(14)の電源プラグ(14a)を電源に接続させると
共に、管(3)の端部を差し込んだEF継手(1)の受
け口部(4)の開口端面(4a)の端子(6)(7)に
EFコントローラ(8)の接続コード(16)の接続コ
ネクタ(16a)を接続させ、また接続コネクタ(16
a)と反対側でボルト・ナット(26)(27)を介し
てバンド(21)内面を管(3)の外面に締め付けて、
管(3)の抜け止めを行った後、スタートボタン(1
0)をオン操作することにより、EFコントーラ(8)
によってEF継手(1)の種類に応じた電力量が電熱線
(5)に供給され、電熱線(5)埋め込み範囲の継手
(1)の受け口部(4)内面とそれに対応する管(3)
の外面の樹脂が加熱溶融され、管(3)と継手(1)の
融着が自動的に行われるものである。
In this embodiment, the power plug (14a) of the power cord (14) of the EF controller (8) is connected to a power source as shown in FIG. The connector (16a) of the connection cord (16) of the EF controller (8) is connected to the terminals (6) and (7) of the opening end face (4a) of the receptacle (4) of the EF joint (1) into which the end is inserted. The connector (16
On the opposite side to a), the inner surface of the band (21) is tightened to the outer surface of the tube (3) via bolts and nuts (26) and (27),
After stopping the pipe (3), start button (1
By turning on 0), the EF controller (8)
As a result, an electric power corresponding to the type of the EF joint (1) is supplied to the heating wire (5), and the inner surface of the socket (4) of the joint (1) in the embedding range of the heating wire (5) and the corresponding pipe (3).
The resin on the outer surface is heated and melted, and the fusion of the pipe (3) and the joint (1) is performed automatically.

【0013】尚、融着完了後は締め止め部(18)の機
能は終わるため、ボルト・ナット(26)(27)は取
外してバンド(21)の締め付けを解除した状態で放置
することができると共に、受け口部(4)の外表面に突
出するリブ(22)(23)が配管の支障となる場合に
はこのリブ(22)(23)を切り落してもよい。
After the fusion is completed, the function of the fastening portion (18) is terminated, so that the bolts and nuts (26) and (27) can be removed and the band (21) can be left unfastened. At the same time, if the ribs (22) and (23) projecting from the outer surface of the receptacle (4) obstruct the piping, the ribs (22) and (23) may be cut off.

【0014】前記バンド(21)の締め付けを継手
(1)への電力供給側と反対側の継手(1)外周側で行
うため、締め付け作業を簡単に行うことができると共
に、各端子(6)(7)を避けて設ける必要があるバン
ド(21)の長さを最大限長く形成することができ、高
い締め付けトルクを得ることができるものである。
Since the band (21) is tightened on the outer peripheral side of the joint (1) on the side opposite to the power supply side to the joint (1), the tightening work can be easily performed and each terminal (6) can be tightened. The length of the band (21) that needs to be provided avoiding (7) can be formed as long as possible, and a high tightening torque can be obtained.

【0015】[0015]

【発明の効果】本発明は、以上説明したように構成され
ているので、以下に記載されるような効果を奏する。
Since the present invention is configured as described above, it has the following effects.

【0016】管(3)端部を差し込む継手(1)の受け
口部(4)の開口端部に、軸方向及び周方向の割り溝
(19)(20)によって形成する糸め付けバンド(2
1)を設け、該バンド(21)の内面を管(3)外面に
締め付けて管(3)と継手(1)との融着を行うもの
で、専用の治具を用いることなく継手(1)の締め付け
バンド(21)で管(3)の抜け止めを行うことがで
き、配管業者が継手の種類やサイズに対応した治具を保
有し、且つ、持ち運ぶ必要がなくなり、経済的及び労力
的負担を軽減できると共に、融着作業も従来に比べて簡
単に行うことができるようになる。
An axially and circumferentially dividing groove is formed in the open end of the socket (4) of the joint (1) into which the end of the pipe (3) is inserted.
(19) The thread binding band (2) formed by (20)
1), and the inner surface of the band (21) is connected to the outer surface of the tube (3).
For fastening the pipe (3) and the joint (1) by welding
In, tightening of the joint (1) without using a dedicated jig
The band (21) can prevent the pipe (3) from falling off, which eliminates the need for the plumbing company to hold and carry a jig corresponding to the type and size of the joint.
With specific burden can be reduced, also it is possible to easily carry out than the conventional fusing work.

【0017】また、前記締め付けバンド(21)は管
(3)と継手(1)の隙間からの溶融樹脂の流出並びに
放熱を抑えるので、融着品質の向上も同時に図ることが
できる。
Further, the clamping band (21) is so suppressed outflow and heat dissipation of the molten resin from the gap of the tube (3) and the joint (1), it is possible to simultaneously improve the fusing quality.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係る締め止め部の斜視図。FIG. 1 is a perspective view of a fastening portion according to the present invention.

【図2】融着方法の実体図。FIG. 2 is an actual view of a fusing method.

【図3】受け口部の断面図。FIG. 3 is a sectional view of a receptacle.

【図4】締め止め部の右側面図。FIG. 4 is a right side view of a fastening portion.

【図5】締め止め部の底面図。FIG. 5 is a bottom view of the fastening portion.

【図6】締め止め部の断面図。FIG. 6 is a sectional view of a fastening portion.

【図7】締め止め部の断面図。FIG. 7 is a sectional view of a fastening portion.

【図8】締め止め部の断面図。FIG. 8 is a sectional view of a fastening portion.

【図9】締め止め部の正面図。FIG. 9 is a front view of a fastening portion.

【符号の説明】[Explanation of symbols]

(1) EF継手 (3) 管 (4) 受け口部 (5) 電熱線 (18) 締め止め部 (1) EF joint (3) Pipe (4) Receptacle (5) Heating wire (18) Tightening part

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 継手(1)の管(3)との接触面に電熱
線(5)を埋設し、電熱線(5)に電力を供給すること
によって樹脂を加熱溶融させ、管(3)と継手(1)の
融着を行うエレクトロフュージョン継手において、管
(3)端部を差し込む継手(1)の受け口部(4)の開
口端部に、軸方向及び周方向の割り溝(19)(20)
によって形成す4締め付けバンド(21)を設け、該バ
ンド(21)の内面を管(3)外面に締め付けて管
(3)と継手(1)との融着を行うようにしたことを特
徴とするエレクトロフュージョン継手。
An electric heating wire (5) is buried in a contact surface of a joint (1) with a pipe (3), and an electric power is supplied to the electric heating wire (5) to heat and melt the resin, thereby forming a pipe (3). In the electrofusion joint for fusing the joint (1) with the joint (1), an axially and circumferentially dividing groove (19) is formed at the open end of the socket (4) of the joint (1) into which the end of the pipe (3) is inserted. (20)
4 fastening band (21) formed by
Pipe (21) to the outside of the pipe (3)
An electrofusion joint characterized in that (3) and the joint (1) are fused .
JP7138541A 1995-05-11 1995-05-11 Electrofusion fittings Expired - Fee Related JP2714773B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7138541A JP2714773B2 (en) 1995-05-11 1995-05-11 Electrofusion fittings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7138541A JP2714773B2 (en) 1995-05-11 1995-05-11 Electrofusion fittings

Publications (2)

Publication Number Publication Date
JPH08303674A JPH08303674A (en) 1996-11-22
JP2714773B2 true JP2714773B2 (en) 1998-02-16

Family

ID=15224572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7138541A Expired - Fee Related JP2714773B2 (en) 1995-05-11 1995-05-11 Electrofusion fittings

Country Status (1)

Country Link
JP (1) JP2714773B2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05322089A (en) * 1992-05-15 1993-12-07 Osaka Gas Co Ltd Pipe coupling with built-in electric heater

Also Published As

Publication number Publication date
JPH08303674A (en) 1996-11-22

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