JPH0674386A - Coupling coil for pipe of thermo-plastic resin - Google Patents

Coupling coil for pipe of thermo-plastic resin

Info

Publication number
JPH0674386A
JPH0674386A JP4248745A JP24874592A JPH0674386A JP H0674386 A JPH0674386 A JP H0674386A JP 4248745 A JP4248745 A JP 4248745A JP 24874592 A JP24874592 A JP 24874592A JP H0674386 A JPH0674386 A JP H0674386A
Authority
JP
Japan
Prior art keywords
coil
thermoplastic resin
resin
socket
high frequency
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
JP4248745A
Other languages
Japanese (ja)
Inventor
Isamu Hanada
勇 花田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP4248745A priority Critical patent/JPH0674386A/en
Publication of JPH0674386A publication Critical patent/JPH0674386A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—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" heated by induction
    • B29C65/3604—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" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/362—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" heated by induction characterised by the type of elements heated by induction 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"
    • B29C65/36—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" heated by induction
    • B29C65/3668—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" heated by induction characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special induction coils
    • 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
    • B29C66/11—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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt 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
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3034—Particular design of joint configurations the joint involving an anchoring effect making use of additional elements, e.g. meshes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8324—Joining or pressing tools pivoting around one axis
    • B29C66/83241—Joining or pressing tools pivoting around one axis cooperating pivoting tools
    • 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
    • B29C65/3464—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint characterised by the cross-section of said heated elements which remain in the joint or by the cross-section of their coating, e.g. being triangular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—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
    • B29C65/02—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"
    • B29C65/36—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" heated by induction
    • B29C65/3672—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" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—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" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—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

Abstract

PURPOSE:To provide a coupling coil for thermoplastic resin pipes, with which the processing time for heating and melting of thermoplastic resin can be shortened. CONSTITUTION:Two resin pipes 2 are made of thermoplastic resin, while a coupling socket 3 is formed from thermoplastic resin and provided with a pipe insert hole 3b, and a coupling coil 4 is embedded in the mating peripheral parts of these resin pipes 2 and pipe insert hole 3b and heated by high frequency induction heating of a high frequency induction coil, and thereby the magnetic flux interlinkage of the high frequency magnetic field is increased by a certain number of ring parts 4e formed by welding the coupling coil 4 partially, and the heating efficiency and heat transfer are enhanced, and also the processing time for heating and melting the thermoplastic resin is shortened. Also, hardening takes place in the condition that part of the coupling coil 4 bites into the resin pipes and the socket 3 as the thermoplastic resin surrounding the coupling coil 4 is heated and melted, and the two resin pipes 2 can be coupled solidly.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】この発明は、例えば、ポリエチレ
ンやポリプロピレン等の熱可塑性樹脂で形成された２本
の樹脂管を連結するために用いられる熱可塑性樹脂管の
連結コイルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting coil of a thermoplastic resin pipe used for connecting two resin pipes made of a thermoplastic resin such as polyethylene or polypropylene.

【０００２】[0002]

【従来の技術】従来、上述例のような２本の樹脂管を連
結する方法としては、例えば、図７に示すように、熱可
塑性樹脂で形成した各樹脂管７，７の各差込み側端部７
ａ，７ａを、熱可塑性樹脂で形成した連結用ソケット８
の管差込み孔８ａに差込み、同管差込み孔８ａの内周面
に埋設したニクロム線９に通電して、各樹脂管７，７の
各差込み側端部７ａ，７ａと連結用ソケット８の管差込
み孔８ａとの対向周面部を加熱溶融し、同各樹脂管７，
７と連結用ソケット８との溶融部分を一体的に結合して
連結固定する熱可塑性樹脂管１０の連結方法がある。2. Description of the Related Art Conventionally, as a method of connecting two resin pipes as in the above-mentioned example, for example, as shown in FIG. 7, each insertion end of each resin pipe 7, 7 formed of a thermoplastic resin is used. Part 7
a and 7a, a connecting socket 8 formed of a thermoplastic resin
Of the resin pipes 7, 7 and the connecting side end portions 7a, 7a of the respective resin pipes 7, 7 and the pipe of the connecting socket 8 are inserted into the pipe inserting holes 8a of The peripheral surface portion facing the insertion hole 8a is heated and melted, and the resin pipes 7,
There is a method of connecting the thermoplastic resin pipes 10 in which the melted portions of the connection socket 7 and the connection socket 8 are integrally connected and fixedly connected.

【０００３】[0003]

【発明が解決しようとする課題】しかし、上述の熱可塑
性樹脂管１０は、熱可塑性樹脂の結合力だけで各樹脂管
７，７と連結用ソケット８とを一体的に連結しているた
め、連結用ソケット８の管差込み孔８ａに埋設したニク
ロム線９は各樹脂管７，７の連結固定に何等役目を果た
しておらず、各樹脂管７，７と連結用ソケット８との連
結部分に対して熱可塑性樹脂の結合力よりも大きい引張
り力が付加されると、各樹脂管７，７の各差込み側端部
７ａ，７ａと連結用ソケット８の管差込み孔８ａとの連
結部分が分離することがあり、熱可塑性樹脂の結合力よ
りも高い連結強度が得られないという問題点を有してい
る。However, since the above-mentioned thermoplastic resin pipe 10 integrally connects the resin pipes 7 and 7 and the connecting socket 8 only by the binding force of the thermoplastic resin, The nichrome wire 9 buried in the pipe insertion hole 8a of the connecting socket 8 does not play any role in connecting and fixing the respective resin pipes 7, 7 to the connecting portion between the respective resin pipes 7, 7 and the connecting socket 8. When a tensile force larger than the bonding force of the thermoplastic resin is applied, the connecting portions of the insertion end portions 7a, 7a of the resin pipes 7, 7 and the pipe insertion hole 8a of the connection socket 8 are separated. In some cases, a connection strength higher than the bonding strength of the thermoplastic resin cannot be obtained.

【０００４】また、他の連結方法として、２本の各樹脂
管７，７と連結用ソケット８とを合成樹脂製の接着剤
（図示省略）で接着固定する連結方法もあるが、作業者
の熟練度によって接着剤の塗布量や塗布面積が異なり、
且つ、接着剤の硬化によって２本の各樹脂管７，７と連
結用ソケット８とを互いに連結固定するため、接着剤の
接合力よりも高い連結強度が得られないという問題点を
有している。As another connection method, there is also a connection method in which the two resin tubes 7, 7 and the connection socket 8 are bonded and fixed with an adhesive (not shown) made of synthetic resin. Depending on the skill level, the amount of adhesive applied and the area of application differ,
Moreover, since the two resin tubes 7, 7 and the connecting socket 8 are connected and fixed to each other by hardening the adhesive, there is a problem that a connecting strength higher than the joining force of the adhesive cannot be obtained. There is.

【０００５】この発明は上記問題に鑑み、２本の各樹脂
管と連結用ソケットとに連結コイルの一部を食込ませた
状態のまま連結固定することにより、熱可塑性樹脂の結
合力又は合成樹脂製の接着剤よりも高い連結強度が得ら
れると共に、熱可塑性樹脂の加熱溶融に要する処理時間
が短縮できる熱可塑性樹脂管の連結コイルの提供を目的
とする。In view of the above problems, the present invention connects and fixes two resin pipes and a connecting socket with a part of the connecting coil being bite to fix the bonding force or the synthetic force of the thermoplastic resin. An object of the present invention is to provide a connecting coil for a thermoplastic resin pipe, which can obtain a higher connecting strength than that of a resin adhesive and can shorten the processing time required for heating and melting the thermoplastic resin.

【０００６】[0006]

【課題を解決するための手段】この発明の連結コイル
は、金属製の線条体を螺旋方向に巻回してコイル本体を
形成すると共に、該コイル本体を螺旋方向に対して所定
間隔に隔てられた位置で部分溶接して同一形状寸法の各
リング部を適宜数形成した熱可塑性樹脂管の連結コイル
であることを特徴とする。In the connected coil of the present invention, a metal filament is wound in a spiral direction to form a coil main body, and the coil main body is separated at a predetermined interval in the spiral direction. It is characterized in that it is a connecting coil of a thermoplastic resin pipe in which a suitable number of ring portions having the same shape and size are formed by partial welding at different positions.

【０００７】[0007]

【作用】この発明は、熱可塑性樹脂で形成した２本の各
樹脂管を、熱可塑性樹脂で形成した連結用ソケットの管
差込み孔に差込み、同各樹脂管の差込み側端部と連結用
ソケットの管差込み孔との対向周面部に埋め込まれた連
結コイルを高周波誘導コイルの高周波誘導加熱により加
熱することで、連結コイルを部分的に溶接してなる適宜
数の各リング部によって高周波磁界の磁束鎖交が多くな
り、加熱効率及び熱伝搬が向上する。且つ、連結コイル
を囲繞する熱可塑性樹脂が加熱溶融することで、同連結
コイルの一部が各樹脂管と連結用ソケットとに夫々食込
んだ状態のまま硬化して一体的に連結固定される。According to the present invention, two resin pipes made of thermoplastic resin are inserted into the pipe insertion holes of the connection socket made of thermoplastic resin, and the insertion side end of each resin pipe and the connection socket are connected. By heating the connecting coil embedded in the peripheral surface portion facing the pipe insertion hole of the above by the high frequency induction heating of the high frequency induction coil, the magnetic flux of the high frequency magnetic field is generated by an appropriate number of each ring part formed by partially welding the connecting coil. The number of interlinkages increases, and the heating efficiency and heat transfer are improved. In addition, the thermoplastic resin surrounding the connecting coil is heated and melted, so that a part of the connecting coil is hardened and is integrally connected and fixed in a state in which the resin pipe and the connecting socket are respectively engulfed. .

【０００８】[0008]

【発明の効果】この発明によれば、熱可塑性樹脂で形成
された各樹脂管と連結用ソケットとに連結コイルの一部
を食込ませた状態のまま連結固定するので、熱可塑性樹
脂の結合力と、連結コイルの食込み力とにより各樹脂管
と連結用ソケットとが一体的に連結され、従来方法のよ
うに熱可塑性樹脂の結合力だけで連結するよりも高い連
結強度が得られると共に、連結コイルの食込みにより引
張り力に対する耐久性が向上し、２本の各樹脂管を強固
に連結固定することができる。しかも、連結コイルを部
分的に溶接してなる適宜数の各リング部によって高周波
磁界の磁束鎖交を多くすることができ、加熱効率及び熱
伝搬が向上すると共に、熱可塑性樹脂の加熱溶融に要す
る処理時間が短縮される。According to the present invention, since each resin pipe formed of a thermoplastic resin and the connecting socket are connected and fixed while a part of the connecting coil is bite, the thermoplastic resin is connected. Force and the biting force of the connecting coil, each resin pipe and the connecting socket are integrally connected, and a higher connecting strength can be obtained as compared with the conventional method in which only the connecting force of the thermoplastic resin is used for connection. By the biting of the connecting coil, the durability against tensile force is improved, and the two resin tubes can be firmly connected and fixed. Moreover, the magnetic flux linkage of the high-frequency magnetic field can be increased by an appropriate number of ring portions formed by partially welding the connecting coil, which improves heating efficiency and heat transfer, and is required for heating and melting the thermoplastic resin. Processing time is reduced.

【０００９】[0009]

【実施例】この発明の一実施例を以下図面に基づいて詳
述する。図面は熱可塑性樹脂で形成した２本の樹脂管を
連結するために用いられる熱可塑性樹脂管の連結コイル
を示し、図５及び図６に於いて、本発明の熱可塑性樹脂
管１は、熱可塑性樹脂（例えば、ポリエチレン、ポリプ
ロピレン、その他の樹脂材料）で管形状に形成した２本
の各樹脂管２，２を、同熱可塑性樹脂で円筒形状に形成
した連結用ソケット３に差込み、同連結用ソケット３の
中央部内周面に埋め込まれた金属製の連結コイル４と対
向する中央位置で各樹脂管２，２の各差込み側端部２
ａ，２ａを当接する。この後、連結用ソケット３の中央
部外周面に装着した高周波誘導コイル５の高周波誘導加
熱により連結コイル４を加熱し、各樹脂管２，２と連結
用ソケット３との対向周面部を連結コイル４により加熱
溶融して連結固定する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. The drawings show a connecting coil of a thermoplastic resin pipe used for connecting two resin pipes formed of a thermoplastic resin. In FIGS. 5 and 6, the thermoplastic resin pipe 1 of the present invention is Two resin tubes 2 and 2 each formed of a plastic resin (for example, polyethylene, polypropylene, or other resin material) in a tubular shape are inserted into a connection socket 3 formed of the same thermoplastic resin in a cylindrical shape, and the same connection is made. Each insertion side end portion 2 of each resin pipe 2, 2 at a central position facing the metal connecting coil 4 embedded in the inner peripheral surface of the central portion of the socket for use 3
a and 2a are brought into contact with each other. After that, the coupling coil 4 is heated by the high frequency induction heating of the high frequency induction coil 5 mounted on the outer peripheral surface of the central portion of the coupling socket 3, and the opposing circumferential surface portions of the resin tubes 2 and 2 and the coupling socket 3 are coupled to each other. The sample is heated and melted by No. 4 and connected and fixed.

【００１０】上述の連結用ソケット３は、図２及び図３
に示すように、同連結用ソケット３を構成するソケット
本体３ａの中心部軸方向に、樹脂管２の外径寸法と対応
する形状寸法の管差込み孔３ｂを貫通形成すると共に、
同ソケット本体３ａに形成した管差込み孔３ｂの中央部
内周面に、金属製の連結コイル４を弾性力に抗して軸方
向に圧縮した状態のまま埋め込んでいる。The above-described connecting socket 3 is shown in FIGS.
As shown in FIG. 3, a pipe insertion hole 3b having a shape corresponding to the outer diameter of the resin pipe 2 is formed so as to penetrate in the axial direction of the central portion of the socket body 3a constituting the connecting socket 3.
A metallic connecting coil 4 is embedded in the inner peripheral surface of the central portion of the tube insertion hole 3b formed in the socket body 3a in a state of being axially compressed against the elastic force.

【００１１】前述の連結コイル４は、図１に示すよう
に、金属素材（例えば、ステンレス鋼）で形成された１
本の線条体４ａを螺旋方向に適宜数巻回してコイル本体
４ｂを形成すると共に、同コイル本体４ｂの内径寸法を
樹脂管２の外径寸法と対応する形状寸法に形成してい
る。且つ、コイル本体４ｂの上部周面側に形成した各線
条縁部４ｃ…と、下部周面側に形成した各線条縁部４ｄ
…とを螺旋方向に対して所定間隔（実施例では１８０度
の位置）に隔てられた位置で夫々溶接して、樹脂管２の
外径寸法と対応する形状寸法の各リング部４ｅ…を軸方
向に対して所定間隔に隔てて適宜数形成している。且
つ、適宜数形成した各リング部４ｅ…を軸方向に対して
所定間隔に離間した状態のままコイル本体４ｂを焼入れ
処理することで弾性を付与している。As shown in FIG. 1, the connecting coil 4 is made of a metal material (for example, stainless steel) 1
The linear body 4a of the book is appropriately wound several times in the spiral direction to form the coil main body 4b, and the inner diameter of the coil main body 4b is formed to have a shape corresponding to the outer diameter of the resin pipe 2. Moreover, each line edge 4c formed on the upper peripheral surface side of the coil body 4b, and each line edge 4d formed on the lower peripheral surface side.
Are welded at positions separated by a predetermined distance (position of 180 degrees in the embodiment) with respect to the spiral direction, and each ring portion 4e having a shape corresponding to the outer diameter of the resin pipe 2 is axially welded. An appropriate number is formed at predetermined intervals in the direction. Further, elasticity is imparted by quenching the coil main body 4b while keeping a proper number of the ring portions 4e formed at a predetermined interval in the axial direction.

【００１２】前述の高周波誘導コイル５は、図４及び図
５に示すように、同高周波誘導コイル５を構成するコイ
ル本体５ａを連結用ソケット３の中央部外周面に対して
装着される形状寸法に形成し、同コイル本体５ａの一側
端部をヒンジ５ｂにより回動自在に連結し、他側端部を
連結金具５ｃにより開閉自在に連結固定すると共に、同
高周波誘導コイル５を構成するコイル本体５ａの両側端
部を高周波供給装置６に接続している。As shown in FIGS. 4 and 5, the above-described high frequency induction coil 5 has a shape and dimensions in which the coil body 5a constituting the high frequency induction coil 5 is mounted on the outer peripheral surface of the central portion of the connecting socket 3. The coil main body 5a has one end rotatably connected by a hinge 5b and the other end rotatably connected and fixed by a connecting fitting 5c. Both ends of the main body 5a are connected to the high frequency supply device 6.

【００１３】以下、ポリエチレンやポリプロピレン等の
熱可塑性樹脂で形成された熱可塑性樹脂管１の連結方法
を説明する。A method of connecting the thermoplastic resin pipes 1 made of a thermoplastic resin such as polyethylene or polypropylene will be described below.

【００１４】先ず、図３に示すように、２本の各樹脂管
２，２を連結用ソケット３の管差込み孔３ｂに対して左
右方向から夫々差込み、同管差込み孔３ｂの中央部内周
面に埋め込まれた連結コイル４と対向する中央位置で各
樹脂管２，２の各差込み側端部２ａ，２ａを当接する。First, as shown in FIG. 3, the two resin pipes 2 and 2 are respectively inserted into the pipe insertion holes 3b of the connecting socket 3 from the left and right directions, and the inner peripheral surface of the central portion of the pipe insertion holes 3b is inserted. The insertion side end portions 2a, 2a of the resin pipes 2, 2 are brought into contact with each other at a central position facing the connecting coil 4 embedded in.

【００１５】次に、図４に示すように、連結用ソケット
３の中央部外周面に高周波誘導コイル５を装着し、高周
波供給装置６で発生した高周波電流を高周波誘導コイル
５に通電して、各樹脂管２，２の各差込み側端部２ａ，
２ａと連結用ソケット３の管差込み孔３ｂとの対向周面
部を高周波誘導コイル５で高周波誘導加熱する。すなわ
ち、連結用ソケット３に埋め込まれた連結コイル４が高
周波磁界の作用を受けて加熱されるとき、同連結コイル
４を部分的に溶接してなる適宜数の各リング部４ｅ…に
よって高周波磁界の磁束鎖交が多くなり、加熱効率及び
熱伝搬が向上すると共に、熱可塑性樹脂の加熱溶融に要
する処理時間が短縮される。Next, as shown in FIG. 4, the high frequency induction coil 5 is mounted on the outer peripheral surface of the central portion of the connecting socket 3, and the high frequency current generated by the high frequency supply device 6 is applied to the high frequency induction coil 5. Each insertion side end 2a of each resin pipe 2,2,
A high-frequency induction coil 5 is used to perform high-frequency induction heating on the opposing peripheral surface portion between 2a and the tube insertion hole 3b of the connection socket 3. That is, when the connecting coil 4 embedded in the connecting socket 3 is heated by the action of the high frequency magnetic field, the high frequency magnetic field is generated by an appropriate number of ring portions 4e ... Magnetic flux linkage increases, heating efficiency and heat transfer improve, and the processing time required for heating and melting the thermoplastic resin is shortened.

【００１６】同時に、図５に示すように、連結用ソケッ
ト３に埋め込まれた連結コイル４を加熱することで、同
連結コイル４を囲繞する熱可塑性樹脂が加熱溶融し、コ
イル自体の復元力により初期状態に弾性復帰して、連結
コイル４を構成する各リング部４ｅ…が軸方向に対して
所定間隔に離間されると共に、同連結コイル４の一部が
各樹脂管２，２の各差込み側端部２ａ，２ａ側と連結用
ソケット３の管差込み孔３ｂ側とに夫々食込み、連結コ
イル４の各リング部４ｅ…を介して各樹脂管２，２の各
差込み側端部２ａ，２ａと、連結用ソケット３の管差込
み孔３ｂとの溶融部分が一体的に結合される。At the same time, as shown in FIG. 5, by heating the connecting coil 4 embedded in the connecting socket 3, the thermoplastic resin surrounding the connecting coil 4 is heated and melted, and by the restoring force of the coil itself. The ring parts 4e ... Which constitute the connecting coil 4 are elastically returned to the initial state and are separated from each other by a predetermined distance in the axial direction, and a part of the connecting coil 4 is inserted into each of the resin pipes 2 and 2. The side end portions 2a, 2a and the pipe insertion hole 3b side of the connection socket 3 respectively bite into each other, and the insertion side end portions 2a, 2a of the respective resin pipes 2, 2 are inserted through the respective ring portions 4e of the connection coil 4. And the fused portion of the pipe insertion hole 3b of the connection socket 3 are integrally coupled.

【００１７】次に、図６に示すように、各樹脂管２，２
の各差込み側端部２ａ，２ａと、連結用ソケット３の管
差込み孔３ｂとに連結コイル４の一部を食込ませた状態
のまま冷却硬化させ、２本の各樹脂管２，２と連結用ソ
ケット３とを一体的に連結固定した後、連結用ソケット
３の中央部外周面から高周波誘導コイル５を取り外すこ
とで、熱可塑性樹脂管１の連結作業が完了する。以下同
様にして、２本の各樹脂管２，２が差込まれた次の連結
用ソケット３に高周波誘導コイル５を装着して、熱可塑
性樹脂管１の連結作業を継続して行う。Next, as shown in FIG. 6, each resin pipe 2, 2
And the two resin pipes 2 and 2 are formed by cooling and hardening while partially inserting the connecting coil 4 into the insertion side end portions 2a and 2a and the pipe insertion hole 3b of the connection socket 3. After integrally connecting and fixing the connecting socket 3, the high frequency induction coil 5 is removed from the outer peripheral surface of the central portion of the connecting socket 3 to complete the connecting work of the thermoplastic resin tube 1. Similarly, the high-frequency induction coil 5 is attached to the next connection socket 3 into which the two resin pipes 2 and 2 have been inserted, and the operation of connecting the thermoplastic resin pipes 1 is continued.

【００１８】以上のように、２本の各樹脂管２，２と連
結用ソケット３とに連結コイル４の一部を食込ませた状
態のまま連結固定するので、熱可塑性樹脂の結合力と、
連結コイル４の食込み力とにより各樹脂管２，２と連結
用ソケット３とが一体的に連結され、従来方法のように
熱可塑性樹脂の結合力又は合成樹脂接着剤の接着力だけ
で連結するよりも高い連結強度が得られると共に、連結
コイル４の食込みにより引張り力に対する耐久性が向上
し、２本の各樹脂管２，２を強固に連結固定することが
できる。しかも、連結コイル４の線条体４ａを部分的に
溶接してなる各リング部４ｅ…によって高周波磁界の磁
束鎖交を多くすることができ、加熱効率及び熱伝搬が向
上すると共に、熱可塑性樹脂の加熱溶融に要する処理時
間が短縮される。As described above, since the two resin pipes 2, 2 and the connecting socket 3 are connected and fixed in a state in which a part of the connecting coil 4 is bite, the connecting force of the thermoplastic resin is ,
The resin pipes 2, 2 and the connecting socket 3 are integrally connected by the biting force of the connecting coil 4, and are connected only by the bonding force of the thermoplastic resin or the adhesive force of the synthetic resin adhesive as in the conventional method. A higher connection strength can be obtained, and the biting of the connection coil 4 improves the durability against tensile force, so that the two resin tubes 2 can be firmly connected and fixed. Moreover, the magnetic flux linkage of the high-frequency magnetic field can be increased by the ring portions 4e, which are formed by partially welding the filaments 4a of the connecting coil 4, and the heating efficiency and the heat propagation can be improved, and the thermoplastic resin can be used. The processing time required for heating and melting is reduced.

【００１９】なお、この発明は、上述の実施例の構成の
みに限定されるものではない。The present invention is not limited to the configuration of the above embodiment.

【００２０】上述の実施例では連結用ソケット３の内周
面側に連結コイル４を圧縮した状態のまま埋め込んでい
るが、例えば、連結用ソケット３に差込まれる各樹脂管
２，２の外周面側に、同各樹脂管２，２の外径寸法より
も小径に連結コイル４を緊縮又は伸張した状態のまま埋
め込むもよく、また、２本の各樹脂管２，２と連結用ソ
ケット３との間に連結コイル４を初期状態（図１参照）
に復元させた状態のまま埋め込むもよい。In the above-described embodiment, the connecting coil 4 is embedded in the inner peripheral surface side of the connecting socket 3 in a compressed state. However, for example, the outer periphery of each resin pipe 2, 2 inserted into the connecting socket 3 is inserted. On the surface side, the connecting coil 4 may be embedded in a diameter smaller than the outer diameter of the resin tubes 2 and 2 in the state of being contracted or stretched, and the two resin tubes 2 and 2 and the connecting socket 3 may be embedded. Initial state of the connecting coil 4 between and (see Fig. 1)
It may be embedded in the restored state.

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

【図１】金属製の線条体を螺旋方向に巻回してなる連結
コイルの側面図。FIG. 1 is a side view of a connected coil formed by winding a metal filament in a spiral direction.

【図２】連結コイルの埋め込み状態を示す連結用ソケッ
トの縦断側面図。FIG. 2 is a vertical cross-sectional side view of a connection socket showing an embedded state of a connection coil.

【図３】樹脂管の差込み状態を示す連結用ソケットの縦
断側面図。FIG. 3 is a vertical cross-sectional side view of a connection socket showing a state where a resin pipe is inserted.

【図４】高周波誘導コイルの取付け状態を示す連結用ソ
ケットの一端側正面図。FIG. 4 is a front view of one end side of a connection socket showing a mounting state of a high frequency induction coil.

【図５】２本の各樹脂管と連結用ソケットとの溶融状態
を示す縦断側面図。FIG. 5 is a vertical sectional side view showing a molten state of each of the two resin pipes and the connection socket.

【図６】熱可塑性樹脂管の連結状態を示す縦断側面図。FIG. 6 is a vertical cross-sectional side view showing a connected state of thermoplastic resin pipes.

【図７】従来方法による熱可塑性樹脂管の連結状態を示
す縦断側面図。FIG. 7 is a vertical cross-sectional side view showing a connected state of thermoplastic resin pipes according to a conventional method.

【符号の説明】[Explanation of symbols]

１…熱可塑性樹脂管 ２…樹脂管 ２ａ…差込み側端部 ３…連結用ソケット ３ｂ…管差込み孔 ４…連結コイル ４ａ…線条体 ４ｂ…コイル本体 ４ｃ，４ｄ…線条縁部 ４ｅ…リング部 ５…高周波誘導コイル DESCRIPTION OF SYMBOLS 1 ... Thermoplastic resin tube 2 ... Resin tube 2a ... Insertion side end 3 ... Connection socket 3b ... Pipe insertion hole 4 ... Connection coil 4a ... Striation body 4b ... Coil body 4c, 4d ... Striation edge 4e ... Ring Part 5: High frequency induction coil

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】熱可塑性樹脂で形成した２本の各樹脂管
と、熱可塑性樹脂で形成した連結用ソケットの管差込み
孔との対向周面部に埋め込まれた連結コイルを高周波誘
導コイルの高周波誘導加熱により加熱して、該各樹脂管
と連結用ソケットとを一体的に連結固定する熱可塑性樹
脂管の連結コイルであって、上記連結コイルを、金属製
の線条体を螺旋方向に巻回して円筒形状のコイル本体を
形成すると共に、該コイル本体を螺旋方向に対して所定
間隔に隔てられた位置で部分溶接して同一形状寸法の各
リング部を適宜数形成した熱可塑性樹脂管の連結コイ
ル。1. A high frequency induction coil for a high frequency induction coil, comprising a connecting coil embedded in the peripheral surface of two resin pipes made of a thermoplastic resin and a pipe insertion hole of a connecting socket made of a thermoplastic resin. A connecting coil of a thermoplastic resin tube, which is integrally heated and connected to fix each resin tube and a socket for connection, wherein the connecting coil is formed by winding a metal filament in a spiral direction. To form a cylindrical coil body, and to join the thermoplastic resin pipes in which the coil body is partially welded at predetermined intervals in the spiral direction to form an appropriate number of ring portions of the same shape and size. coil.
JP4248745A 1992-08-24 1992-08-24 Coupling coil for pipe of thermo-plastic resin Pending JPH0674386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4248745A JPH0674386A (en) 1992-08-24 1992-08-24 Coupling coil for pipe of thermo-plastic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4248745A JPH0674386A (en) 1992-08-24 1992-08-24 Coupling coil for pipe of thermo-plastic resin

Publications (1)

Publication Number Publication Date
JPH0674386A true JPH0674386A (en) 1994-03-15

Family

ID=17182739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4248745A Pending JPH0674386A (en) 1992-08-24 1992-08-24 Coupling coil for pipe of thermo-plastic resin

Country Status (1)

Country Link
JP (1) JPH0674386A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0689931A3 (en) * 1994-06-27 1997-07-23 Gruber Alois Agru Gmbh Process for welding plastic tubes and socket for its realisation
JP2008111459A (en) * 2006-10-30 2008-05-15 Maezawa Kyuso Industries Co Ltd Electromagnetic fusion joint
KR100985436B1 (en) * 2008-06-30 2010-10-05 주식회사 한국건설관리공사 Connecting method for copper pipe
WO2015132783A3 (en) * 2014-03-04 2015-10-29 Huliot A.C.S. Ltd Electromagnetic induction welding of fluid distribution systems
US10710312B2 (en) 2017-03-13 2020-07-14 Huliot Agricultural Cooperative Society Ltd Induction weldable pipe connector having thermally insulated induction weldable socket mouth rims

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0689931A3 (en) * 1994-06-27 1997-07-23 Gruber Alois Agru Gmbh Process for welding plastic tubes and socket for its realisation
JP2008111459A (en) * 2006-10-30 2008-05-15 Maezawa Kyuso Industries Co Ltd Electromagnetic fusion joint
KR100985436B1 (en) * 2008-06-30 2010-10-05 주식회사 한국건설관리공사 Connecting method for copper pipe
WO2015132783A3 (en) * 2014-03-04 2015-10-29 Huliot A.C.S. Ltd Electromagnetic induction welding of fluid distribution systems
CN106068417A (en) * 2014-03-04 2016-11-02 霍里奥特公司 The electromagnetic induction welding of fluid distributing system
US10828840B2 (en) 2014-03-04 2020-11-10 Huliot A.C.S. Ltd Electromagnetic induction welding of fluid distribution systems
US10710312B2 (en) 2017-03-13 2020-07-14 Huliot Agricultural Cooperative Society Ltd Induction weldable pipe connector having thermally insulated induction weldable socket mouth rims

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