WO2010064832A2 - 융착 성능이 향상된 융착식 연결부재 - Google Patents

융착 성능이 향상된 융착식 연결부재 Download PDF

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Publication number
WO2010064832A2
WO2010064832A2 PCT/KR2009/007126 KR2009007126W WO2010064832A2 WO 2010064832 A2 WO2010064832 A2 WO 2010064832A2 KR 2009007126 W KR2009007126 W KR 2009007126W WO 2010064832 A2 WO2010064832 A2 WO 2010064832A2
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WO
WIPO (PCT)
Prior art keywords
fusion
synthetic resin
compressed air
main body
connection member
Prior art date
Application number
PCT/KR2009/007126
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English (en)
French (fr)
Other versions
WO2010064832A3 (ko
Inventor
최지호
Original Assignee
폴리텍(주)
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Application filed by 폴리텍(주) filed Critical 폴리텍(주)
Publication of WO2010064832A2 publication Critical patent/WO2010064832A2/ko
Publication of WO2010064832A3 publication Critical patent/WO2010064832A3/ko

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F16L47/03—Welded joints with an electrical resistance incorporated in the joint
    • 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
    • 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
    • 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
    • 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
    • B29C66/10—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
    • B29C66/01—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
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/5224—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
    • B29C66/5225—Joining tubular articles for forming cross-shaped connections, e.g. for making X-shaped pieces
    • B29C66/52251—Joining tubular articles for forming cross-shaped connections, e.g. for making X-shaped pieces with four right angles, e.g. for making +-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
    • 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
    • B29C66/80—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
    • B29C66/826—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined
    • B29C66/8266—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined using fluid pressure directly acting on the parts to be joined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/26—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics for branching pipes; for joining pipes to walls; Adaptors therefor
    • F16L47/34—Tapping pipes, i.e. making connections through walls of pipes while carrying fluids; Fittings therefor
    • F16L47/345—Tapping pipes, i.e. making connections through walls of pipes while carrying fluids; Fittings therefor making use of attaching means embracing the pipe
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0009—Cutting out
    • B29C2793/0018—Cutting out for making a hole
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • 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

Definitions

  • the present invention relates to a fusion-splicing member, and more particularly, formed on the inner circumferential surface of the main body in which the heating wire is disposed along the heating wire, and forming a hollow portion through which the compressed air flows, thereby compressing the air into the hollow portion during the fusion operation. Fusion performance that allows molten resin to flow to the outer diameter side of the synthetic resin pipe so that the connection of the synthetic resin pipe with a large tolerance of the outer diameter or the connecting member can be easily fused to the synthetic resin pipe with an irregular outer surface An improved fusion splicing member is provided.
  • synthetic resin pipes have almost no material eluting from the pipes themselves, are not corrosive, and have the advantage of being semi-permanent as long as they do not cause artificial damage, as well as low material and construction costs. It is used for various purposes such as sewer pipes and drain pipes.
  • Gas pipes and water pipes are made of a constant thickness and inner diameter and outer diameter of the gas due to the nature of the gas (gas), but sewage pipes and drain pipes are manufactured with a large allowable tolerance itself, such as thickness, inner diameter and outer diameter depending on the production environment.
  • these synthetic resin pipes are manufactured to a certain length, they are used to be connected to each other in order to obtain a desired length in the field, and also to connect branch pipes for supplying a fluid flowing through the main pipe to each use place.
  • EF electro-fusion
  • Figure 1 is a cross-sectional view showing a conventional cylindrical connecting member
  • Figure 2 is a cross-sectional view showing a conventional semi-cylindrical connecting member.
  • the connecting members 10a and 10b have a cylindrical body 12a or a semi-cylindrical body 12b.
  • heating wires 14a and 14b are disposed along the inner circumferential surface, and respective ends of the heating wires 14a and 14b are exposed on the outer circumferential surfaces of the main bodies 12a and 12b.
  • Each end of the exposed heating wires 14a and 14b is connected to the ground terminals 16a and 16b disposed on the outer circumferential surface of the cylindrical body 12a or the semi-cylindrical body 12b.
  • the above-described cylindrical connecting member (10a) is used to connect one synthetic resin pipe (P1) and another synthetic resin pipe (P2)
  • the semi-cylindrical connecting member (10b) is a main pipe made of synthetic resin ( It is used to connect branch pipe (P4) in P3).
  • the conventional cylindrical connecting member (10a) can be easily used in a gas pipe and a water pipe having a constant outer diameter, but in a synthetic resin pipe such as sewage pipe and drain pipe that the outer diameter is not constant, the cylindrical connecting member (10a) and the synthetic resin pipe (P1, P2) Due to the poor contact of the cylindrical connection member 10a and the synthetic resin pipes (P1, P2) there was a problem that the fusion is not made smoothly.
  • the conventional semi-cylindrical connecting member 10b also has a problem in that the fusion of the semi-cylindrical connecting member 10b and the main pipe P3 is not smoothly performed when the outer diameter of the main pipe P3 is irregular.
  • the object of the present invention is formed along the heating wire in the inner body of the heating wire is arranged on the inner circumference as well as forming a hollow portion through which the compressed air flows, fusion operation Compressed air flows into the hollow part to make the molten resin behave toward the outer diameter side of the synthetic resin tube, so that the connection member is easily fused to the synthetic resin tube having a large outer diameter tolerance, or to a synthetic resin tube having an irregular outer surface. It is to provide a fusion-bonded member with improved welding performance that can be.
  • fusion-type connecting member having a main body made of any one of a cylindrical shape or a semi-cylindrical shape in which a heating wire is disposed along an inner circumferential surface and fused to a synthetic resin pipe,
  • the inside of the main body is formed along the heating wire and the hollow portion is guided through the compressed air is provided to provide a fusion-type connection member with improved fusion performance to allow the resin melted by the heating wire to the synthetic resin side when fused.
  • the hollow portion is formed inside the main body so as not to interfere on the heating wire and the outer circumferential surface of the main body.
  • a guide protrusion connected to the injection hose into which the compressed air is injected is integrally formed on the outer circumferential surface of the main body, and the guide portion into which the compressed air flows is connected to the hollow part.
  • the present invention by forming a hollow portion through which the compressed air flows and is formed along the heating wire inside the main body, it moves toward the outer diameter side of the synthetic resin tube to connect the molten resin by the heating wire during the welding operation.
  • FIG. 1 is a cross-sectional view showing a conventional cylindrical connecting member
  • Figure 2 is a cross-sectional view showing a conventional semi-cylindrical connecting member
  • FIG. 3 is a cross-sectional view showing a fusion-type connection member improved fusion performance according to the present invention
  • FIG. 4 is a side cross-sectional view taken along line A-A shown in FIG. 3, and
  • Figure 5 is a cross-sectional view showing a further fusion-improving fusion connection member according to the present invention.
  • the fusion splicing members 100a and 100b with improved fusion performance according to the present invention are manufactured in a cylindrical shape, as shown in FIG. 3, or as shown in FIG. 5. It is manufactured in semi-cylindrical shape.
  • the cylindrical connecting member 100a shown in FIG. 3 is used to connect one synthetic resin pipe P1 and another synthetic resin pipe P2, and has a semi-cylindrical connecting member shown in FIG. 100b) is used to branch the branch pipe P4 from one of the synthetic resin pipes P3 (main pipe).
  • connection members 100a and 100b include a cylindrical body 110a or a semi-cylindrical body 110b.
  • the heating wires 112a and 112b are disposed along the inner circumferential surfaces of the main bodies 110a and 110b on the inner circumferential surfaces of the main bodies 110a and 110b.
  • Each end of the heating wires 112a and 112b is connected to the ground terminals 114a and 114b disposed on the outer circumferential surfaces of the main bodies 110a and 110b.
  • one radial side of the heating wires 114a and 114b is buried on the inner circumferential surfaces of the main bodies 110a and 110b, and the other radial sides of the heating wires 114a and 114b are exposed onto the inner circumferential surfaces of the main bodies 110a and 110b.
  • hollow parts 120a and 120b through which the compressed air is guided along the heating wires 114a and 114b are formed inside the main bodies 110a and 110b.
  • the hollow parts 120a and 120b are formed inside the main bodies 110a and 110b so as not to interfere with the heating wires 112a and 112b and the outer circumferential surfaces of the main bodies 110a and 110b.
  • the guide protrusions 130a and 130b are integrally formed on the outer circumferential surfaces of the main bodies 110a and 110b, and the guide parts 132a and 132b through which compressed air flows into the guide protrusions 130a and 130b are hollow parts 120a and 120b. Is formed to be connected to, guide hoses (130a, 130b) is connected to the injection hose (not shown) is injected compressed air.
  • the compressed air introduced through the guide parts 132a and 132b is guided to the hollow parts 120a and 120b, and the compressed air guided to the hollow parts 120a and 120b is applied to the heating wires 112a and 112b to which a high frequency current is applied.
  • the synthetic resin pipe (P1, P2, P3) to be connected to the molten molten resin.
  • the synthetic resin pipes P1 and P2 are respectively inserted into both inner circumferential surfaces of the cylindrical main body 110a.
  • the welding machine is connected under a state in which a cable (not shown) of a welding machine (not shown) is connected to the ground terminal 114a.
  • a high frequency current is applied to the heating wire 112a through the cable and the ground terminal 114a.
  • the heating wire 112a buried on the inner circumferential surface of the main body 110a melts the surface of the inner circumferential surface of the main body 110a and moves outward to the inner circumferential surface of the main body 110a.
  • the exposed heating wire 112a melts the outer circumferential surfaces of the synthetic resin pipes P1 and P2 inserted into the main body 110a.
  • the compressed air is introduced into the hollow portion (120a) through the guide portion (132a), hollow portion (
  • the compressed air introduced into 120a may move the molten resin on the inner circumferential surface of the main body 110a toward the synthetic resin pipes P1 and P2 to be fused with the molten resin on the outer circumferential surfaces of the synthetic resin pipes P1 and P2. That is, the compressed air inflates the hollow portion 120a to cause the resin melted on the inner circumferential surface of the main body 110a to move toward the synthetic resin pipes P1 and P2.
  • the hollow portion 120a inflated by the compressed air may be easily fused without contacting the inner circumferential surface of the main body 110a due to an error in the outer diameter of the synthetic resin pipes P1 and P2 to be connected.
  • the semi-cylindrical body (100b) can also be fusion-bonded in the same manner under the state in close contact with the synthetic resin pipe (P3), and thus can be easily fused to the irregular synthetic resin pipe (P3) surface.

Abstract

내주면에 전열선이 배치된 본체의 내부에 전열선을 따라 형성되고, 압축에어가 유입되는 중공부를 형성함으로써, 융착 작업 시 중공부에 압축에어가 유입되게 하여 용융된 수지를 합성수지관의 외경 측으로 거동(擧動)되게 하여 외경의 공차가 큰 합성수지관의 연결, 또는 외경 표면이 불규칙한 합성수지관에 연결부재가 용이하게 융착될 수 있게 하는 융착 성능이 향상된 융착식 연결부재가 개시되어 있다. 본 발명에 따른 연결부재는, 내주면을 따라 전열선이 배치된 원통 형상, 또는 반 원통 형상 중 어느 하나의 형상으로 이루어져 합성수지관에 융착되는 본체를 가진다. 본체의 내부에는 전열선을 따라 형성됨과 아울러 압축에어가 안내되는 중공부가 형성되어 융착 시 전열선에 의해 용융된 수지를 합성수지관 측으로 거동되게 한다. 이러한 연결부재는, 외경의 공차가 서로 다른 합성수지관의 연결, 또는 외경 표면이 불규칙한 합성수지관에 연결부재가 용이하게 융착되게 한다.

Description

융착 성능이 향상된 융착식 연결부재
본 발명은 융착식 연결부재에 관한 것으로서, 더욱 상세하게는 내주면에 전열선이 배치된 본체의 내부에 전열선을 따라 형성되고, 압축에어가 유입되는 중공부를 형성함으로써, 융착 작업 시 중공부에 압축에어가 유입되게 하여 용융된 수지를 합성수지관의 외경 측으로 거동(擧動)되게 하여 외경의 공차가 큰 합성수지관의 연결, 또는 외경 표면이 불규칙한 합성수지관에 연결부재가 용이하게 융착될 수 있게 하는 융착 성능이 향상된 융착식 연결부재에 관한 것이다.
일반적으로, 합성수지관은 관 자체에서 용출되는 물질이 거의 없고, 부식될 염려가 없으며, 인위적인 손상을 가하지 않는 한 수명이 반영구적일 뿐만 아니라, 자재비 및 시공비용이 저렴하다는 장점이 있어, 가스관, 수도관, 하수관, 배수관 등 다양한 용도로 이용되고 있다. 가스관과 수도관은 가스(gas)가 가지는 특성상 관의 두께와 내경 및 외경이 일정하게 제작되지만, 하수관 및 배수관은 제작환경에 따라서 두께, 내경 및 외경 등에 허용 공차자체가 크게 제작된다.
이러한 합성수지관은 일정한 길이로 제작되기 때문에 현장에서는 원하는 길이를 얻기 위해서 서로 연결하여 사용되고, 또한 주 배관을 흐르는 유체를 각각의 사용처로 공급하기 위한 가지관을 연결하여 사용되는데, 그 연결 방법으로는 다양한 방법이 제공되고 있으나 열을 이용한 방법으로는 대부분 전기융착(Electro-Fusion; EF)법이 이용되고 있는 실정이다.
도 1은 종래 원통형 연결부재를 나타낸 단면도이며, 그리고 도 2는 종래 반원통형 연결부재를 나타낸 단면도이다.
도 1 및 도 2를 참조하면, 연결부재(10a, 10b)는 원통형 본체(12a) 또는 반원통형 본체(12b)를 구비한다. 원통형 본체(12a) 또는 반원통형 본체(12b)의 내주면 상에는 내주면을 따라 전열선(14a, 14b)이 배치되고, 전열선(14a, 14b)의 각각의 단부는 본체(12a, 12b)의 외주면 상으로 노출되며, 노출된 전열선(14a, 14b)의 각각의 단부는 원통형 본체(12a) 또는 반원통형 본체(12b)의 외주면 상에 배치되는 접지단자(16a, 16b)와 연결된다.
도시된 바와 같이, 전술한 원통형 연결부재(10a)는 어느 하나의 합성수지관(P1)과 또 다른 합성수지관(P2)을 연결하는데 사용되고, 반원통형 연결부재(10b)는 합성수지로 제조된 주 배관(P3)에서 가지관(P4)을 연결하는데 사용된다.
그런데, 종래 원통형 연결부재(10a)는 외경이 일정한 가스관과 수도관에서는 용이하게 사용할 수 있으나, 외경이 일정하지 못한 하수관 및 배수관과 같은 합성수지관에서는 원통형 연결부재(10a)와 합성수지관(P1, P2)들의 접촉 불량으로 인하여 원통형 연결부재(10a)와 합성수지관(P1, P2)의 융착이 원활하게 이루어지지 못하는 문제점이 있었다.
또한, 종래 반원통형 연결부재(10b) 역시 주 배관(P3)의 외경이 불규칙한 경우 반원통형 연결부재(10b)와 주 배관(P3)의 융착이 원활하게 이루어지지 못하는 문제점이 있었다.
본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 안출된 것으로, 본 발명의 목적은 내주면에 전열선이 배치된 본체의 내부에 전열선을 따라 형성됨과 아울러 압축에어가 유입되는 중공부를 형성함으로써, 융착 작업 시 중공부에 압축에어가 유입되게 하여 용융된 수지를 합성수지관의 외경 측으로 거동(擧動)되게 하여 외경의 공차가 큰 합성수지관의 연결, 또는 외경 표면이 불규칙한 합성수지관에 연결부재가 용이하게 융착될 수 있게 하는 융착 성능이 향상된 융착식 연결부재를 제공하는데 있다.
상기와 같은 본 발명의 목적을 달성하기 위해서 본 발명은,
내주면을 따라 전열선이 배치된 원통 형상, 또는 반 원통 형상 중 어느 하나의 형상으로 이루어져 합성수지관에 융착되는 본체를 가지는 융착식 연결부재에 있어서,
본체의 내부에는 전열선을 따라 형성되고 압축에어가 안내되는 중공부가 형성되어 융착 시 전열선에 의해 용융된 수지를 합성수지관 측으로 거동되게 하는 융착 성능이 향상된 융착식 연결부재를 제공한다.
바람직하게는, 중공부는 전열선 및 본체의 외주면 상에 간섭되지 않게 본체 내부에 형성된다.
더욱 바람직하게는, 본체의 외주면 상에는 압축에어가 주입되는 주입호스와 연결되는 안내돌기가 일체로 형성되고, 안내돌기에는 압축에어가 유입되는 안내부가 중공부와 연결되게 형성된다.
이상에서 설명한 바와 같이, 본 발명에 따르면, 본체의 내부에 전열선을 따라 형성됨과 아울러 압축에어가 유입되는 중공부를 형성함으로써, 융착 작업 시 전열선에 의해 용융된 수지를 연결하고자 하는 합성수지관의 외경 측으로 거동되게 할 수 있어 외경의 차이가 나는 합성수지관의 연결 및 표면이 불규칙한 합성수지관에 연결부재를 용이하게 융착 연결할 수 있는 이점이 있다.
도 1은 종래 원통형 연결부재를 나타낸 단면도이고,
도 2는 종래 반원통형 연결부재를 나타낸 단면도이며,
도 3은 본 발명에 따른 융착 성능이 향상된 융착식 연결부재를 나타낸 단면도이고,
도 4는 도 3에 도시된 선 A-A를 따라 도시된 측 단면도이며, 그리고
도 5는 본 발명에 따른 또 다른 융착 성능이 향상된 융착식 연결부재를 나타낸 단면도이다.
이하, 첨부된 도면들을 참조하여 본 발명의 바람직한 실시예에 따른 융착 성능이 향상된 융착식 연결부재에 대해 설명한다.
도 3 내지 도 5를 참조하면, 본 발명에 따른 융착 성능이 향상된 융착식 연결부재(100a, 100b)는, 도 3에 도시된 바와 같이, 원통 형상으로 제조되거나, 또는 도 5에 도시된 바와 같이, 반 원통 형상으로 제조된다. 도 3에 도시된 원통 형상의 연결부재(100a)는 어느 하나의 합성수지관(P1)과, 또 다른 합성수지관(P2)을 연결하기 위해서 사용되며, 도 5에 도시된 반 원통 형상의 연결부재(100b)는 어느 하나의 합성수지관(P3; 주 배관)에서 가지관(P4)을 분기하기 위해서 사용된다.
도시된 바와 같이, 연결부재(100a, 100b)는 원통 형상의 본체(110a), 또는 반 원통 형상의 본체(110b)를 구비한다. 전술한 본체(110a, 110b)의 내주면 상에는 본체(110a, 110b)의 내주면을 따라 전열선(112a, 112b)이 배치된다. 이러한 전열선(112a, 112b)의 각각의 단부는 본체(110a, 110b)의 외주면 상으로 배치되는 접지단자(114a, 114b)와 연결된다.
바람직하게는 전열선(114a, 114b)의 방사상 일측은 본체(110a, 110b)의 내주면 상에 매몰되고, 전열선(114a, 114b)의 방사상 타측은 본체(110a, 110b)의 내주면 상으로 노출된다.
한편, 본체(110a, 110b)의 내부에는 전열선(114a, 114b)을 따라 압축에어가 안내되는 중공부(120a, 120b)가 형성된다. 이러한 중공부(120a, 120b)는 전열선(112a, 112b) 및 본체(110a, 110b)의 외주면 상에 간섭되지 않게 본체(110a, 110b) 내부에 형성된다.
또한 본체(110a, 110b)의 외주면 상에는 안내돌기(130a, 130b)가 일체로 형성되고 안내돌기(130a, 130b)에는 압축에어가 유입되는 안내부(132a, 132b)가 중공부(120a, 120b)와 연결되게 형성되는데, 안내돌기(130a, 130b)에는 압축에어가 주입되는 주입호스(도시되지 않음)가 연결된다.
즉, 안내부(132a, 132b)를 통해 유입된 압축에어는 중공부(120a, 120b) 측으로 안내되고, 중공부(120a, 120b) 측으로 안내된 압축에어는 고주파전류가 인가된 전열선(112a, 112b)에 의해서 용융된 용융수지를 연결하고자 하는 합성수지관(P1, P2, P3) 측으로 거동되게 한다.
하기에는 전술한 바와 같이 형성된 융착 성능이 향상된 융착식 연결부재(100)의 사용상태를 간략하게 설명한다.
먼저, 어느 하나의 합성수지관(P1)과 또 다른 합성수지관(P2)을 연결하기 위해서는 원통 형상의 본체(110a)의 내주면 양측에 각각 합성수지관(P1, P2)을 삽입시킨다. 이렇게 연결하고자 하는 합성수지관(P1, P2)이 원통 형상의 본체(100a)에 삽입되면 융착기계(도시되지 않음)의 케이블(도시되지 않음)을 접지단자(114a)에 연결시킨 상태 하에서 융착기계를 작동시키면 케이블 및 접지단자(114a)를 통해 전열선(112a)에 고주파 전류를 인가시킨다.
전술한 바와 같이, 전열선(112a)에 고주파 전류가 인가되면, 본체(110a)의 내주면 상으로 매몰된 전열선(112a)은 본체(110a)의 내주면 표면을 용융시키고, 본체(110a)의 내주면 외부로 노출된 전열선(112a)은 본체(110a)에 삽입된 합성수지관(P1, P2)의 외주면을 용융시킨다. 이때, 전열선(112a)으로 인가되는 고주파 전류를 차단하고, 안내돌기(130a)를 통해 압축에어를 공급하면, 압축에어는 안내부(132a)를 통해 중공부(120a)로 유입되고, 중공부(120a)로 유입된 압축에어는 본체(110a) 내주면에 용융된 수지를 합성수지관(P1, P2) 측으로 거동시켜 합성수지관(P1, P2)의 외주면 상에 용융된 수지와 융착되게 한다. 즉, 압축에어는 중공부(120a)를 부풀려 본체(110a) 내주면에 용융된 수지를 합성수지관(P1, P2) 측으로 거동시키게 된다. 이렇게 압축에어에 의해서 부풀려지는 중공부(120a)는 연결하고자 하는 합성수지관(P1, P2)의 외경의 오차로 인해 본체(110a)의 내주면에 접촉되지 않아도 용이하게 융착될 수 있다.
한편, 반 원통 형상의 본체(100b) 역시 합성수지관(P3)에 밀착시킨 상태 하에서 동일한 방법으로 융착 연결할 수 있으며, 따라서 불규칙한 합성수지관(P3) 표면에도 용이하게 융착될 수 있다.
상기에서는 본 발명의 바람직한 실시예를 참조하여 설명하였지만, 해당기술 분야의 숙련된 당업자는 특허청구범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.

Claims (3)

  1. 내주면을 따라 전열선이 배치된 원통 형상, 또는 반 원통 형상 중 어느 하나의 형상으로 이루어져 합성수지관에 융착되는 본체를 가지는 융착식 연결부재에 있어서,
    상기 본체의 내부에는 상기 전열선을 따라 형성됨과 아울러 압축에어가 안내되는 중공부가 형성되어 융착 시 상기 전열선에 의해 용융된 수지를 상기 합성수지관 측으로 거동되게 하는 융착 성능이 향상된 융착식 연결부재.
  2. 제 1 항에 있어서, 상기 중공부는 상기 전열선 및 상기 본체의 외주면 상에 간섭되지 않게 상기 본체 내부에 형성되는 것을 특징으로 하는 융착 성능이 향상된 융착식 연결부재.
  3. 제 1 항에 있어서, 상기 본체의 외주면 상에는 상기 압축에어가 주입되는 주입호스와 연결되는 안내돌기가 일체로 형성되고, 상기 안내돌기에는 상기 압축에어가 유입되는 안내부가 상기 중공부와 연결되게 형성되는 것을 특징으로 하는 융착 성능이 향상된 융착식 연결부재.
PCT/KR2009/007126 2008-12-03 2009-12-02 융착 성능이 향상된 융착식 연결부재 WO2010064832A2 (ko)

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