JPH08303674A - Electrofusion fittings - Google Patents
Electrofusion fittingsInfo
- Publication number
- JPH08303674A JPH08303674A JP7138541A JP13854195A JPH08303674A JP H08303674 A JPH08303674 A JP H08303674A JP 7138541 A JP7138541 A JP 7138541A JP 13854195 A JP13854195 A JP 13854195A JP H08303674 A JPH08303674 A JP H08303674A
- Authority
- JP
- Japan
- Prior art keywords
- joint
- pipe
- heating wire
- opening end
- 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.)
- Granted
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
- B29C65/3432—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding comprising several wires, e.g. in the form of several independent windings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
- B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
- 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
-
- 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
- B29C65/78—Means 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
- B29C65/7841—Holding or clamping means for handling purposes
-
- 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
- B29C66/5224—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
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
- B29C66/52297—Joining tubular articles involving the use of a socket said socket comprising slip-off prevention means
-
- 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
- B29C66/70—General 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
- B29C66/71—General 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
-
- 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
- B29C66/70—General 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
- B29C66/73—General 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
- B29C66/739—General 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
- B29C66/7392—General 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
- B29C66/73921—General 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
-
- 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
- B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
- B29C66/967—Measuring 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
- B29C66/9674—Measuring 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)
- Branch Pipes, Bends, And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
(57)【要約】
［目的］ 管（３）とエレクトロフュージョン継手
（１）とを融着させる際、専用の治具を用いることなく
管（３）の抜け止めを行う。
［構成］ 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、内面を管外面に締め付け可能な締め止め部
（１８）を一体成形する。
(57) [Summary] [Purpose] When the pipe (3) and the electrofusion joint (1) are fused, the pipe (3) is prevented from coming off without using a dedicated jig. [Structure] The heating wire (5) is embedded in the contact surface of the joint (1) with the pipe (3), and the resin is heated and melted by supplying electric power to the heating wire (5) to join the pipe (3) and the joint. In the electrofusion joint for fusion bonding of (1), a fastening portion (18) capable of fastening the inner surface to the outer surface of the pipe is provided at the opening end of the receiving portion (4) of the joint (1) into which the end of the pipe (3) is inserted. ) Is integrally molded.
Description
【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 pipes made of thermoplastic synthetic resin used as pipes for water and sewerage or 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 is one in which a heating wire is embedded in the contact surface with a pipe of a thermoplastic synthetic resin joint (when the pipe is made of polyethylene, the joint is also made of polyethylene). By supplying electric power to the heating wire, the resin is heated and fused, and the pipe 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 that pushes the pipe out of the joint.Therefore, in the past, a jig was used to connect the pipe and the pipe to be joined or joined. I was trying to prevent 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。The above-mentioned prior art requires a plumber to possess and carry a retaining jig for each type and size of the joint so that various types and sizes of the joint can be accommodated. And that's the way it is now.
【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。It is an object of the present invention to provide an electrofusion joint which 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、内面を管外面に締め
付け可能な締め止め部を一体成形したものである。In order to achieve the above-mentioned object, the electrofusion joint of the present invention comprises a heating wire embedded in the contact surface of the joint with the tube, and a resin is supplied by supplying electric power to the heating wire. In an electrofusion joint that heats and melts and fuses a pipe and a joint, a fastening portion that can tighten the inner surface to the outer surface of the pipe is integrally formed at the opening end of the receiving portion of the joint into which the pipe end is inserted. .
【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止め部の
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め止
め部で管の抜け止めを行い得ると共に、該締め止め部は
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 receiving port of the joint,
By tightening the inner surface of the tightening part integrally molded at the opening end of the receiving part to the outer surface of the pipe, supplying electric power to the heating wire to heat and melt the resin, and by fusion bonding the pipe and the joint, It is possible to prevent the pipe from coming off at the joint fastening part without using the jig of the above, and the fastening part suppresses the outflow and heat radiation of the molten resin from the gap between the pipe and the joint, and improves the fusion quality. I will get it.
【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。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 the figure, (1) is a T-shaped EF joint made of polyethylene, and the inside of the joint (1) is electrically charged. It is the one in which the heat rays are embedded. Specifically, as shown in Fig. 3, polyethylene pipes (3) used as water and sewerage and gas pipes.
The heating wire (5) is embedded in the inner surface of each receiving portion (4) of the joint (1) into which the end portion of (1) is inserted, that is, the contact surface with the pipe (3). As the heating wire (5), a coated wire having a nickel wire or a nickel alloy wire as an element wire and a surface covered with polyethylene is used, and the heating wire (5 ) So that both ends of the heating wire (5) are folded in two and embedded in a coil shape on the inner surface of the receiving part (4) from a position inside the opening end of the receiving part (4) by a predetermined dimension. . Further, a pair of terminals (6) are connected to both ends of the heating wire (5), and both terminals (6) supply electric power to the heating wire (5) with an opening end face (3) of each receiving part (4).
The socket (4) for receiving both terminals (6), as can be done from a).
Is embedded in the axial direction from the opening end face (3a). Furthermore, the opening end face (3) of the receiving part (4) between the both terminals (6)
The terminal (7) for identifying the type of the EF joint (1) is provided in a). Therefore, three terminals (6) and (7) are provided close to each other on the opening end face (3a) of each receiving part (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。Reference numeral (8) in the drawing denotes an electrofusion controller which is a power supply device for supplying electric power to the heating wire (5), such as an electric (electronic) circuit board for automatic fusion control and a transformer (not shown). Control box (9)
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 electric 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 receiving portion (3) of the EF joint (1), a fastening portion (18) capable of fastening the inner surface to the outer surface of the pipe (3). Are integrally molded.
【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 a first split groove (19) formed axially from the opening end face (3a) of the receiving portion (4) and the first split groove (19). A second split groove (20) formed continuously from the end of the split groove (19) in the circumferential direction of the receiving portion (4) is provided, and the first split groove (4) reaching the inner surface from the outer surface of the receiving portion (4) is provided. Groove (1
9) is provided on the side opposite to the terminals (6) and (7) (position different by 180 degrees), and the opening end face (4) of the receiving port (4) is provided.
The second split groove (20), which is provided at a length approximately half the size from a) to the embedded area of the heating wire (5) and reaches the inner surface from the outer surface of the receiving part (4), is formed in the receiving part (4). Provided in parallel with the opening end face (4a), and within 180 ° from the end of the first split groove (19) toward the terminal (6) (7) side, the mounting portion of the terminal (6) (7) The tightening band (21) is provided at a predetermined angle (θ) (approximately 135 °) up to this side, and is provided at the opening end of each receptacle (4) by the first and second split grooves (19) (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 portion of the band (21), and a fixed rib (23) is arranged so as to face the movable rib (22) with a first split groove (19) interposed therebetween. ) Is integrally formed with the opening end of the receiving part (4), and the axial holes (24) are formed in the opposing ribs (22) and (23).
Insert the tightening bolt (26), which is inserted through (25),
The nut (27) fused to the bolt (26) is tightened so that the movable rib (22) approaches the fixed rib (23), and the inner surface of the band (21) is piped (3).
It is configured to prevent the pipe (3) from coming off by restricting the axial movement and rotation of the pipe (3) which is fastened to the outer surface of the pipe (3) and whose end is inserted into the receiving port (4).
【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。This embodiment is constructed as described above, and as shown in FIG. 2, the power plug (14a) of the power cord (14) of the EF controller (8) is connected to the power source and the pipe (3) is connected. Connect the connector (16a) of the connection cord (16) of the EF controller (8) to the terminals (6) and (7) of the opening end face (4a) of the receiving portion (4) of the EF joint (1) into which the end is inserted. Connection connector (16
Tighten the inner surface of the band (21) to the outer surface of the pipe (3) via the bolts and nuts (26) and (27) on the side opposite to a).
After locking the tube (3), press the start button (1
By turning on 0), the EF controller (8)
The electric energy corresponding to the type of the EF fitting (1) is supplied to the heating wire (5) by the EF fitting (1), and the inner surface of the receiving part (4) of the fitting (1) in the area where the heating wire (5) is embedded and the corresponding pipe (3)
The resin on the outer surface is heated and melted, and the pipe (3) and the joint (1) are automatically fused.
【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。Since the function of the tightening portion (18) ends after the fusion is completed, the bolts / nuts (26) (27) can be removed and the band (21) can be left unfastened. At the same time, when the ribs (22) and (23) protruding to the outer surface of the receiving portion (4) interfere with 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 tightening of the band (21) is performed 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 performed easily 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、内面を管（３）外面に締め付
け可能な締め止め部（１８）を一体成形したので、専用
の治具を用いることなく継手（１）の締め止め部（１
８）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、経済的及び労力的に負担を軽
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。At the opening end of the receiving portion (4) of the joint (1) into which the end of the pipe (3) is inserted, a fastening portion (18) capable of tightening the inner surface to the outer surface of the pipe (3) is integrally formed. Tightening part (1) of joint (1) without using a dedicated jig
In 8), the pipe (3) can be prevented from coming off, and the plumber has a jig corresponding to the type and size of the joint, and
Since it is not necessary to carry it, the burden can be reduced economically and labor, and the fusion work can be performed more easily than before.
【００１７】また、前記締め止め部（１８）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 tightening portion (18) is a pipe (3).
Since the outflow of the molten resin and the heat radiation from the gap between the joint and the joint (1) are suppressed, the fusion quality can be improved at the same time.
【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 diagram of a fusion bonding method.
【図３】受け口部の断面図。FIG. 3 is a sectional view of a receiving portion.
【図４】締め止め部の右側面図。FIG. 4 is a right side view of the 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.
（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) Receiving part (5) Heating wire (18) Fastening part
Claims (1)
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、内面を管外面に締め付け可能な締め止め部を一体成
形したことを特徴とするエレクトロフュージョン継手。1. A heating wire is embedded in the contact surface of the joint with the pipe,
In the electrofusion joint that heats and melts the resin by supplying electric power to the heating wire to fuse the pipe and the joint, the inner surface can be fastened to the outer surface of the pipe at the opening end of the receiving end of the joint that inserts the pipe end. An electrofusion joint characterized by a simple fastening part.
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 true JPH08303674A (en) | 1996-11-22 |
| JP2714773B2 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) |
Citations (1)
| 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 |
-
1995
- 1995-05-11 JP JP7138541A patent/JP2714773B2/en not_active Expired - Fee Related
Patent Citations (1)
| 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 |
|---|---|
| JP2714773B2 (en) | 1998-02-16 |
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