JP2003090485A - Fusion member with core - Google Patents
Fusion member with coreInfo
- Publication number
- JP2003090485A JP2003090485A JP2001329401A JP2001329401A JP2003090485A JP 2003090485 A JP2003090485 A JP 2003090485A JP 2001329401 A JP2001329401 A JP 2001329401A JP 2001329401 A JP2001329401 A JP 2001329401A JP 2003090485 A JP2003090485 A JP 2003090485A
- Authority
- JP
- Japan
- Prior art keywords
- fusion
- core
- ring portion
- thermoplastic resin
- pipe
- 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
Links
- 230000004927 fusion Effects 0.000 title claims abstract description 184
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 230000002093 peripheral effect Effects 0.000 claims abstract description 35
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims description 68
- 238000007526 fusion splicing Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 229920005989 resin Polymers 0.000 description 24
- 239000011347 resin Substances 0.000 description 24
- -1 polyethylene Polymers 0.000 description 12
- 239000004698 Polyethylene Substances 0.000 description 9
- 229920000573 polyethylene Polymers 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229920001083 polybutene Polymers 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009933 burial Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101000634707 Homo sapiens Nucleolar complex protein 3 homolog Proteins 0.000 description 1
- 102100029099 Nucleolar complex protein 3 homolog Human genes 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
- B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3468—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
-
- 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
- B29C66/342—Preventing air-inclusions
-
- 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
- B29C66/5223—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces
- B29C66/52231—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces with a right angle, e.g. for making L-shaped pieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—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
- B29C66/52293—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being external
-
- 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
- B29C66/52294—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being heated
-
- 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
- B29C66/52296—Joining tubular articles involving the use of a socket said socket comprising sealing elements, e.g. gaskets
-
- 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
- B29C66/63—Internally supporting the article during joining
- B29C66/636—Internally supporting the article during joining using a support which remains in the joined object
-
- 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
- B29C66/735—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 extensive physical properties 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
- B29C66/8414—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different diameter
-
- 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
- B29C66/97—Checking completion of joining or correct joining by using indications on at least one of the joined parts
- B29C66/972—Checking completion of joining or correct joining by using indications on at least one of the joined parts by extrusion of molten material
-
- 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
-
- 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
- B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
- B29C66/322—Providing cavities in the joined article to collect the burr
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、熱可塑性樹脂管同
士を突き合わせ融着接続する時に用いられるコア付き融
着材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fusion material with a core, which is used when butt fusion-splicing thermoplastic resin tubes.
【０００２】[0002]
【従来の技術】従来、ポリエチレン等の熱可塑性樹脂管
同士を接続するための電気発熱式融着継手として、両側
が管受け口とされたソケット状継手の、管受け口内周面
近傍に電気発熱線を埋設したいわゆる融着継手が知られ
ている。2. Description of the Related Art Conventionally, as an electric heating type fusion splicing joint for connecting thermoplastic resin pipes of polyethylene or the like, an electric heating wire is formed in the vicinity of the inner peripheral surface of the pipe receiving mouth of a socket-like joint having pipe receiving mouths on both sides. There is known a so-called fusion splicing in which is embedded.
【０００３】[0003]
【発明が解決しようとする課題】しかるに、融着継手に
おいては、融着表面のポリエチレンの酸化や汚れ等があ
れば、充分な接続強度が発揮できず、従って、接続の前
には、ポリエチレン管の接続部管端部表面をスクレープ
しなければならないという手間が掛かるものである上、
管端部が継手受け口内に必要な融着長さ分だけ挿入され
たかどうかが、マーキングなしでは一目では分かり難い
という問題点があった。However, in the fusion-bonded joint, if polyethylene on the fusion-bonded surface is oxidized or soiled, sufficient connection strength cannot be exhibited. Therefore, before the connection, a polyethylene pipe is used. It takes time and effort to scrape the pipe end surface of the connection part of
There was a problem that it was difficult to tell at a glance whether or not the pipe end had been inserted into the joint receiving port by the required fusion length without marking.
【０００４】一方、接続される管の管端面同士を突き合
わせて融着接続するいわゆるバット融着では、接続され
る管の管端面同士をスクレープする必要があることに加
え、接続する管同士を保持する管保持機構、管端切除又
は端面スクレープ機構、管端部圧接機構、電気発熱板等
を備えた専用のバット融着機を用いて接続される必要が
あり、融着機の運搬やそれに伴う作業等に多くの手間が
掛かるという問題点があった。On the other hand, in so-called butt fusion in which the pipe end faces of the pipes to be connected are butted against each other, it is necessary to scrape the pipe end faces of the pipes to be connected and to hold the pipes to be connected. It is necessary to connect using a dedicated butt fusion machine equipped with a pipe holding mechanism, pipe end cutting or end face scraping mechanism, pipe end pressure welding mechanism, electric heating plate, etc. There is a problem that it takes a lot of time and labor for work and the like.
【０００５】本発明は上記従来の問題点を解決し、熱可
塑性樹脂管同士を突き合わせ融着接続するにあたり、接
続部外表面の切削を必要とせず、かつ融着時にマーキン
グの必要がなく、専用の融着機を必要とせずに突き合わ
せ融着による接続が、確実でかつ容易に確認できるコア
付き融着材を提供する目的で行われたものである。The present invention solves the above-mentioned conventional problems and does not require cutting of the outer surface of the connecting portion when the thermoplastic resin pipes are butt-welded to each other and fusion-bonded, and marking is not required at the time of fusion-bonding. The purpose of the present invention is to provide a cored fusion material which can be surely and easily confirmed by butt fusion connection without the need for a fusion machine.
【０００６】[0006]
【課題を解決するための手段】本願の請求項１記載の発
明（本発明１）は、熱可塑性樹脂管同士を突き合わせ融
着接続する時に管端部に挿着して用いられるコア付き融
着材であって、外径が上記熱可塑性樹脂管の内径と略同
じか僅かに小さい外径を有する円筒状のコア部と、該コ
ア部の略中央部外周面に設けられた熱可塑性樹脂製融着
リング部とからなり、該融着リング部の両側面がコア部
に対して直角面とされ、該側面のいずれの表面近傍にも
通電により発熱する発熱線が埋設され、融着リング部外
周面に発熱線のリード端子が設けられているコア付き融
着材である。The invention according to claim 1 of the present application (invention 1) is a fusion with a core, which is used by inserting the thermoplastic resin pipes into the ends of the pipes for butt fusion connection. A cylindrical core part having an outer diameter substantially equal to or slightly smaller than the inner diameter of the thermoplastic resin tube, and a thermoplastic resin provided on the outer peripheral surface of the central part of the core portion. A fusion ring portion, and both side surfaces of the fusion ring portion are planes perpendicular to the core portion, and a heating wire for generating heat by energization is buried near any surface of the side surfaces. It is a fusion material with a core in which lead terminals for heating wires are provided on the outer peripheral surface.
【０００７】本願の請求項２記載の発明（本発明２）
は、熱可塑性樹脂管同士を突き合わせ融着接続する時に
用いられるコア付き融着材であって、融着リング部と、
該融着リング部の通孔の内縁部から、両端部に該融着リ
ング部の両側方に突出し、前記熱可塑性樹脂管の接続部
に挿入される、該接続部の内径と略同じか僅かに小さい
外径を有する円筒状のコア部とからなり、上記融着リン
グ部の両側面が上記コア部に対して直角面とされ、該側
面のいずれの表面近傍にも通電により発熱する発熱線が
埋設され、融着リング部外周面に発熱線のリード端子が
設けられているコア付き融着材である。The invention according to claim 2 of the present application (invention 2)
Is a fusion material with a core used when the thermoplastic resin tubes are butted and fusion-bonded to each other, and a fusion ring portion,
From the inner edge of the through hole of the fusion ring portion, projecting to both sides of the fusion ring portion at both ends, and inserted into the connection portion of the thermoplastic resin pipe, approximately the same or slightly the inner diameter of the connection portion. A heat generating wire that is composed of a cylindrical core portion having a small outer diameter, and both side surfaces of the fusion bonding ring portion are perpendicular to the core portion, and heat is generated by energization near any of the side surfaces. Is embedded, and the lead terminal of the heating wire is provided on the outer peripheral surface of the fusion ring portion.
【０００８】本願の請求項３記載の発明（本発明３）
は、熱可塑性樹脂管同士を突き合わせ融着接続する時に
用いられるコア付き融着材であって、曲管状の熱可塑性
樹脂製本体の両側に、上記管の接続部に挿入される、該
接続部の内径と略同じか僅かに小さい外径を有する円筒
状のコア部が突設され、該本体の該コア部の基端部の外
側に、該コア部が挿入された管の端面が当接可能な側面
を有する融着部が突設され、該融着部の上記管側の側面
が上記コア部に対して直角面とされ、該側面のいずれの
表面近傍にも通電により発熱する発熱線が埋設され、融
着部外周面又は上記本体外周面に発熱線のリード端子が
設けられているコア付き融着材である。Invention of Claim 3 of the present application (Invention 3)
Is a fusion material with a core used for butt fusion fusion connection of thermoplastic resin pipes, which is inserted into the connection portion of the pipe on both sides of a bent tubular thermoplastic resin main body. A cylindrical core portion having an outer diameter that is approximately the same as or slightly smaller than the inner diameter of the core body, and the end surface of the tube in which the core portion is inserted contacts the outside of the base end portion of the core portion of the main body. A fusion wire having a possible side surface is provided in a projecting manner, the side surface of the fusion area on the tube side is a right-angled surface with respect to the core portion, and a heating wire that generates heat by energization near any surface of the side surface. Is embedded, and the lead-bonding terminal for the heating wire is provided on the outer peripheral surface of the fusion-bonding portion or the outer peripheral surface of the main body.
【０００９】本願の請求項４記載の発明（本発明４）
は、上記融着リング部のいずれの側面又は融着部の上記
管側のいずれの側面にも、径方向に向かって少なくとも
１条以上の溝が設けられている本発明１乃至本発明３の
いずれかのコア付き融着材である。The invention according to claim 4 of the present application (present invention 4)
According to the invention 1 to invention 3, at least one or more grooves are provided in the radial direction on any side surface of the fusion-bonding ring portion or any side surface on the tube side of the fusion-bonding portion. It is one of the fusion materials with a core.
【００１０】本願の請求項５記載の発明（本発明５）
は、上記融着リング部又は融着部のコア部近傍には発熱
線が埋設されていない本発明１乃至本発明４のいずれか
コア付き融着材である。The invention according to claim 5 of the present application (present invention 5)
Is a fusion material with a core according to any one of Invention 1 to Invention 4, in which a heating wire is not embedded in the vicinity of the fusion ring portion or the core portion of the fusion portion.
【００１１】本願の請求項６記載の発明（本発明６）
は、上記融着リング部のいずれの側面又は融着部の上記
管側のいずれの側面に埋設された発熱線の配列間隔も、
融着リング部又は融着部の外周部側に向かって粗とされ
ている、又は融着リング部又は融着部のコア部側におけ
る配設深さが、融着リング部又は融着部の外周部側にお
ける配設深さよりも融着リング部又は融着部の側表面に
近くされている本発明１乃至本発明５のいずれかのコア
付き融着材である。The invention according to claim 6 of the present application (invention 6)
Is the arrangement interval of the heating wires embedded on any side surface of the fusion ring portion or on any side surface of the fusion portion on the tube side,
The fusing ring portion or the outer peripheral portion of the fusing portion is roughened, or the arrangement depth on the core portion side of the fusing ring portion or the fusing portion is the fusing ring portion or the fusing portion. The fusion material with a core according to any one of Invention 1 to Invention 5, which is closer to the side surface of the fusion ring portion or the fusion portion than the arrangement depth on the outer peripheral side.
【００１２】本願の請求項７記載の発明（本発明７）
は、上記コア部の両側部の外周面に周方向に沿って凹溝
が設けられ、該凹溝にゴム輪が装着されている本発明１
乃至本発明６のいずれかのコア付き融着材である。The invention according to claim 7 of the present application (present invention 7)
The present invention 1 is characterized in that concave grooves are provided along the circumferential direction on the outer peripheral surfaces of both sides of the core portion, and a rubber ring is attached to the concave grooves.
Through the fusion material with a core according to any one of the present invention 6.
【００１３】本願の請求項８記載の発明（本願８）は、
上記筒状体の両端部のコア部、又は、融着リング部もし
くは融着部の両側方に突出した両コア部の外径が相互に
異なる本発明２乃至本発明７のいずれかのコア付き融着
材である。The invention according to claim 8 of the present application (application 8) is
With a core according to any one of the second to seventh aspects of the present invention, in which the outer diameters of the core portions at both ends of the tubular body, or both core portions protruding to both sides of the fusion ring portion or the fusion portion are different from each other It is a fusion material.
【００１４】[0014]
【作用】本発明１のコア付き融着材は、外径が上記熱可
塑性樹脂管の内径と略同じか僅かに小さい外径を有する
円筒状のコア部と、該コア部の略中央部外周面に設けら
れた熱可塑性樹脂製融着リング部とからなり、該融着リ
ング部の両側面がコア部に対して直角面とされ、該側面
のいずれの表面近傍にも通電により発熱する発熱線が埋
設され、融着リング部外周面に発熱線のリード端子が設
けられていることにより、熱可塑性樹脂管同士を突き合
わせ融着接続する時に、管を所定の長さに切断すれば切
断面は新しい樹脂面が露出することになり、この面で融
着接続がなされるから、管端部の外表面を切除すること
なく融着が可能となる。The fusion material with a core according to the first aspect of the present invention comprises a cylindrical core portion having an outer diameter substantially equal to or slightly smaller than the inner diameter of the thermoplastic resin tube, and an outer periphery of a substantially central portion of the core portion. A fusion-bonding ring portion made of a thermoplastic resin provided on a surface, both side surfaces of the fusion-bonding ring portion are surfaces perpendicular to the core portion, and heat is generated by energizing any of the side surfaces in the vicinity thereof. Since the wires are embedded and the lead terminals of the heating wires are provided on the outer peripheral surface of the fusion ring part, when the thermoplastic resin tubes are butt fusion-bonded to each other, if the tubes are cut to a predetermined length, the cut surface Since the new resin surface is exposed and the fusion connection is performed on this surface, the fusion can be performed without cutting the outer surface of the tube end portion.
【００１５】本発明２のコア付き融着材は、融着リング
部と、該融着リング部の通孔の内縁部から、両端部に該
融着リング部の両側方に突出し、前記熱可塑性樹脂管の
接続部に挿入される、該接続部の内径と略同じか僅かに
小さい外径を有する円筒状のコア部とからなり、上記融
着リング部の両側面が上記コア部に対して直角面とさ
れ、該側面のいずれの表面近傍にも通電により発熱する
発熱線が埋設され、融着リング部外周面に発熱線のリー
ド端子が設けられていることにより、熱可塑性樹脂管同
士を突き合わせ融着接続する時に、管を所定の長さに切
断すれば切断面は新しい樹脂面が露出することになり、
この面で融着接続がなされるから、管端部の外表面を切
除することなく融着が可能となる。The fusing material with a core according to the second aspect of the present invention projects from the inner edge of the fusing ring portion and the through hole of the fusing ring portion to both ends of the fusing ring portion and to both sides of the fusing ring portion. It is composed of a cylindrical core portion that is inserted into the connection portion of the resin pipe and has an outer diameter that is substantially the same as or slightly smaller than the inner diameter of the connection portion, and both side surfaces of the fusion bonding ring portion with respect to the core portion. A heating wire which is a right-angled surface, and which generates heat when energized is buried near any surface of the side surface, and a lead terminal of the heating wire is provided on the outer peripheral surface of the fusion ring portion, so that the thermoplastic resin tubes are connected to each other. When butt fusion splicing, if the tube is cut to a predetermined length, the cut surface will expose a new resin surface,
Since the fusion splicing is performed on this surface, the fusion can be performed without cutting the outer surface of the tube end portion.
【００１６】本発明３のコア付き融着材は、曲管状の熱
可塑性樹脂製本体の両側に、上記管の接続部に挿入され
る、該接続部の内径と略同じか僅かに小さい外径を有す
る円筒状のコア部が突設され、該本体の該コア部の基端
部の外側に、該コア部が挿入された管の端面が当接可能
な側面を有する融着部が突設され、該融着部の上記管側
の側面が上記コア部に対して直角面とされ、該側面のい
ずれの表面近傍にも通電により発熱する発熱線が埋設さ
れ、融着部外周面又は上記本体外周面に発熱線のリード
端子が設けられていることにより、熱可塑性樹脂管同士
をその軸芯が曲がった状態にて突き合わせ融着接続する
時に、管を所定の長さに切断すれば切断面は新しい樹脂
面が露出することになり、この面で融着接続がなされる
から、管端部の外表面を切除することなく融着が可能と
なる。The fusion material with a core according to the third aspect of the present invention has an outer diameter which is inserted into the connecting portion of the pipe on both sides of the main body made of a thermoplastic resin having a curved shape and whose outer diameter is substantially the same as or slightly smaller than the inner diameter of the connecting portion. A cylindrical core portion having a protrusion is provided, and a fusion-bonding portion having a side surface with which the end face of the tube in which the core portion is inserted can abut is provided outside the base end portion of the core portion of the main body. The side surface of the fusion portion on the tube side is a right-angled surface with respect to the core portion, and a heating wire that generates heat by energization is embedded in the vicinity of any surface of the side surface. Since the lead terminals of the heating wire are provided on the outer peripheral surface of the main body, when the thermoplastic resin tubes are butt fusion-bonded to each other with their axes bent, they can be cut by cutting the tubes to a specified length. A new resin surface is exposed on the surface, and the fusion connection is made on this surface, so Fusion without ablating surface becomes possible.
【００１７】更に、接続部にコア部を挿入するだけで管
が所定の位置まで挿入出来たかどうかが一目で判定でき
るのでマーキングの必要がなく、かつ通常の融着継手用
クランプを用いてバット融着が可能となり、専用のバッ
ト融着機が不要である。Further, since it is possible to determine at a glance whether the pipe has been inserted to a predetermined position by simply inserting the core portion into the connecting portion, there is no need for marking, and the butt fusion can be performed by using a usual fusion joint clamp. It is possible to wear the bat, and there is no need for a dedicated butt fusion machine.
【００１８】リード端子が融着リング部外周面に設けら
れているから、従来の電気融着継手の場合と同様の取り
扱いで、融着作業を行うことができる。Since the lead terminals are provided on the outer peripheral surface of the fusion-bonding ring portion, the fusion-bonding work can be performed by the same handling as in the case of the conventional electric fusion-bonding joint.
【００１９】更に、筒状体の両端部のコア部、又は、融
着リング部もしくは融着部の両側方に突出した両コア部
の外径が相互に異なっていると、異なる口径の管を融着
接続することができる。Further, when the outer diameters of the core portions at both end portions of the tubular body or both of the fused ring portions or both of the core portions protruding to both sides of the fused portion are different from each other, pipes having different diameters are formed. It can be fusion spliced.
【００２０】[0020]
【発明の実施の形態】次に図面を参照しながら、本発明
のコア付き融着材を説明する。図１は本発明のコア付き
融着材の一例の外観斜視図である。BEST MODE FOR CARRYING OUT THE INVENTION Next, a fusion material with a core according to the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of an example of the fusion material with core of the present invention.
【００２１】本発明のコア付き融着材１が適用される熱
可塑性樹脂管としては、ポリ塩化ビニル管、ポリエチレ
ン管、ポリプロピレン管、ポリブテン管、ナイロン管、
ポリエステル管など、一般的な熱可塑性樹脂管が挙げら
れ、その内でも、ポリエチレン管が最も好適に適用され
る。The thermoplastic resin pipe to which the fusion material with core 1 of the present invention is applied is a polyvinyl chloride pipe, a polyethylene pipe, a polypropylene pipe, a polybutene pipe, a nylon pipe,
A typical thermoplastic resin tube such as a polyester tube may be mentioned, and among them, a polyethylene tube is most preferably applied.
【００２２】コア付き融着材１のコア部１２は、融着リ
ング部１３が、正しく接続される熱可塑性樹脂管の管端
部に位置されるための案内をし、同時に、融着途中で融
着箇所の位置ずれが起こらないよう管同士を繋ぐ役割を
果たす。The core portion 12 of the fusion material with core 1 guides the fusion ring portion 13 so as to be positioned at the pipe end portion of the thermoplastic resin pipe that is correctly connected, and at the same time, during fusion. It plays the role of connecting the pipes so that the displacement of the fusion points does not occur.
【００２３】コア部１２の厚さは、管内に挿入されて使
用されることから、可能な限り薄いことが好ましく、そ
の外径は、コア部１２が管端部に挿入可能でかつ可能な
限りコア部２と管端部との間に隙間がないことが望まし
いので、管の内径と略同じか僅かに小さくされているこ
とが必要である。The thickness of the core portion 12 is preferably as thin as possible since it is used by inserting it into the pipe, and its outer diameter is as small as possible so that the core portion 12 can be inserted into the pipe end portion and as much as possible. Since it is desirable that there is no gap between the core portion 2 and the pipe end, it is necessary that the inner diameter of the pipe is approximately the same as or slightly smaller than the inner diameter of the pipe.
【００２４】従って、コア部１２の材質は、融着リング
部１３が発熱した際に変形せず、薄くても強度があり、
かつ耐食性に優れたものであれば特に限定されないが、
例えば一例として、ステンレススチール、アルミニウ
ム、真鍮、銅、鉄、等の金属や合金類；ポリ塩化ビニ
ル、ポリエチレン、ポリプロピレン、ポリブテン、ナイ
ロン、ポリエステル等熱可塑性樹脂類；繊維強化樹脂類
等が挙げられる。Therefore, the material of the core portion 12 is not deformed when the fusion ring portion 13 generates heat and has strength even if it is thin.
And it is not particularly limited as long as it is excellent in corrosion resistance,
Examples thereof include metals and alloys such as stainless steel, aluminum, brass, copper and iron; thermoplastic resins such as polyvinyl chloride, polyethylene, polypropylene, polybutene, nylon and polyester; fiber reinforced resins and the like.
【００２５】コア部１２の長さは短い程良いが、短すぎ
て融着リング部１３の固定が不安定にならない程度とさ
れなければならない。このために、通常、管径の１．５
倍から０．２倍程度の長さとされることが多いが、その
材質や厚さによって適宜選択されれば良いことは言うま
でもない。The shorter the length of the core portion 12, the better, but it must be set to such an extent that the fixing of the fusion-bonding ring portion 13 becomes unstable because it is too short. For this reason, the pipe diameter is usually 1.5
In many cases, the length is about twice to 0.2 times, but it goes without saying that it may be appropriately selected depending on the material and the thickness thereof.
【００２６】融着リング部１３は、融着される熱可塑性
樹脂管と同じ材質とされる。即ち、ポリ塩化ビニル管、
ポリエチレン管、ポリプロピレン管、ポリブテン管、ナ
イロン管、ポリエステル管など、熱可塑性樹脂管と同じ
ものが選択して用いられれば良い。The fusion ring portion 13 is made of the same material as the thermoplastic resin tube to be fused. That is, polyvinyl chloride pipe,
A polyethylene pipe, a polypropylene pipe, a polybutene pipe, a nylon pipe, a polyester pipe, or the like, which is the same as the thermoplastic resin pipe, may be selected and used.
【００２７】融着リング部１３の両側面１３１は、コア
部１２に対して直角とされている。従って、コア部１２
が正しく管端部に挿入され、接続される管同士のどちら
の管の管端面も管軸に対し正しく直角に切断されていれ
ば、融着リング部１３の両側面１３１は、どちらの管の
管端面全部にも当接する。Both side surfaces 131 of the fusion ring portion 13 are formed at right angles to the core portion 12. Therefore, the core portion 12
Is correctly inserted into the pipe end, and both pipes of the pipes to be connected are cut correctly at right angles to the pipe axis, both side surfaces 131 of the fusion ring part 13 are It also abuts the entire pipe end surface.
【００２８】融着リング部１３の高さ（Ｈ）は、適用さ
れる管の管壁厚さと同じかそれ以上とされる。短いと、
融着リング部１３の外周面１３２の樹脂が溶融あるいは
軟化した際に、それが管端部外周面に流れてしまい、リ
ード端子１５が曲がったり、管軸が曲がって接続されて
しまう恐れがあるからである。The height (H) of the fusion-bonding ring portion 13 is equal to or more than the wall thickness of the pipe to which it is applied. Short,
When the resin on the outer peripheral surface 132 of the fusing ring portion 13 is melted or softened, it may flow to the outer peripheral surface of the tube end portion, and the lead terminal 15 may be bent or the tube shaft may be bent and connected. Because.
【００２９】該融着リング部１３の外周面１３２には、
発熱線１４のリード端子１５が設けられている。従っ
て、融着リング部の厚さ（Ｄ）は、通電により発熱線１
４が発熱して樹脂が溶融した際に、リード線端子１５が
取り付けられているリング外周面１３２の樹脂が、溶融
あるいは軟化しない厚さであることが必要であり、その
厚さ（Ｄ）は管径によって変わる。即ち、融着作業時に
は融着リング部１３は発熱線１４が通電発熱して高温と
なりその表面が溶融するので、厚さが不足すると、融着
リング部１３の溶融してはならない部位が溶融あるいは
軟化してしまい、変形する恐れがあるからである。変形
してはならない部位の厚さは、管径によって全て異なる
ので、適宜選択して決められれば良い。逆に厚すぎる
と、この心配はないが融着リング部１３が大形となり、
取り扱い性が悪くなってくる。On the outer peripheral surface 132 of the fusion ring portion 13,
A lead terminal 15 for the heating wire 14 is provided. Therefore, the thickness (D) of the fusion-bonded ring portion is determined by energizing the heating wire 1
It is necessary that the resin on the outer peripheral surface 132 of the ring to which the lead wire terminals 15 are attached does not melt or soften when 4 heats up and the resin melts, and the thickness (D) is It depends on the pipe diameter. That is, in the fusing work, the heating wire 14 is electrically heated to generate a high temperature in the fusing ring portion 13 and the surface thereof is melted. Therefore, if the thickness is insufficient, the portion of the fusing ring portion 13 which should not be melted or This is because it may be softened and deformed. The thickness of the portion that should not be deformed varies depending on the pipe diameter, and may be appropriately selected and determined. On the other hand, if it is too thick, there is no concern for this, but the fusion ring part 13 becomes large,
The handling becomes worse.
【００３０】融着リング部１３の両側面１３１の表面近
傍には、通電により発熱する発熱線１４が埋設され、そ
のリード端子１５が融着リング部１３の外周面１３２に
突設している。発熱線の配列の例を、図２から図５に示
す。Heat generating wires 14 that generate heat when energized are embedded near the surfaces of both side surfaces 131 of the fusion ring portion 13, and lead terminals 15 thereof project from the outer peripheral surface 132 of the fusion ring portion 13. An example of the array of heating lines is shown in FIGS.
【００３１】図２は発熱線の配設間隔が均一で同じ深さ
で埋設されているものの一例の断面図、図３は発熱線の
配設間隔が均一で埋設深さがコア部側が浅くされている
ものの一例の断面図、図４は発熱線の配設間隔がコア部
側が密とされ同じ深さで埋設されているものの一例の断
面図、図５は発熱線の配設間隔がコア部側が密とされ埋
設深さがコア部側が浅くされているものの一例の断面図
である。FIG. 2 is a cross-sectional view of an example in which the heating wires are evenly arranged and buried at the same depth, and FIG. 3 is the heating wires are evenly arranged and the burial depth is made shallower on the core side. FIG. 4 is a cross-sectional view of an example in which the heating wires are arranged close to each other in the core portion and buried at the same depth. FIG. It is a sectional view of an example in which the side is dense and the burial depth is shallow on the core part side.
【００３２】発熱線１４は通電されて発熱し、融着リン
グ部１３の側表面１３１が溶融して管端面と融着する。
この時、融着リング部１３側表面のコア部１２側が早く
溶融すれば、溶融した樹脂が溝１３３を伝って外側に移
動するので、よく空気が抜けだして融着が確実となる。
図１から図４のいずれの方法においても、図１と比較し
て、コア部１２側が早く溶融して空気がより抜け出しや
すく、融着がより確実となるので好ましい。The heating wire 14 is energized to generate heat, and the side surface 131 of the fusion ring portion 13 is melted and fused with the tube end surface.
At this time, if the core portion 12 side of the surface of the fusion bonding ring portion 13 melts quickly, the molten resin moves to the outside along the groove 133, so that air often escapes to ensure fusion bonding.
In any of the methods shown in FIGS. 1 to 4, the core portion 12 side is more quickly melted than in FIG. 1, air is more likely to escape, and fusion is more reliable, which is preferable.
【００３３】発熱線１４は、コア部１２側近傍には配設
されていない。従って、コア部１２近傍の樹脂は溶融す
ることがなく、いわゆるコールドゾーン１３４として作
用する。即ち、溶融した樹脂は、コールドゾーン１３４
で堰き止められてコア部１２側には流れず、コア部１２
を変形させることがない。The heating wire 14 is not arranged near the core portion 12 side. Therefore, the resin in the vicinity of the core portion 12 does not melt and acts as a so-called cold zone 134. That is, the molten resin is cooled in the cold zone 134.
It is blocked by the core part 12 and does not flow to the core part 12 side.
Will not be deformed.
【００３４】上記融着リング部１３のいずれの側面１３
１にも、円周方向に向かって少なくとも１条以上の溝１
３３が設けられている。溶融した樹脂は、該溝１３３を
通って融着リング部１３の外部に湧出するから、溶融箇
所の空気が抜けると共に、融着が完全に行われたことが
容易に分かる。Any of the side surfaces 13 of the fusion ring portion 13
1 also has at least one groove 1 in the circumferential direction.
33 is provided. The melted resin flows out of the fusion ring portion 13 through the groove 133, so that it is easy to see that the air at the fusion portion escapes and the fusion is completely performed.
【００３５】このコア付き融着材１を用いて管端同士を
突き合わせ融着接続する方法は、以下のようにする。即
ち、本発明のコア付き融着材１は袋に個包装され、密封
された状態で供給される。従って、コア付き融着材１の
表面は袋から出されるまでは、汚染や酸化がない状態と
されている。又、管の管端部は個々にキャップ等で密封
された状態で供給され、管同士を接続される場合には、
必要に応じて管端面を切断して所定の長さに切りそろえ
られる。従って、接続時にはその管端部は汚染されてお
らず、又酸化もない状態となっている。勿論、万一、汚
染や酸化が心配な場合は、管端面を切削する等して新し
い管端面を露出させれば良いことは言うまでもない。The method of butt-welding and joining the tube ends by using this fusion material with core 1 is as follows. That is, the fusion material with core 1 of the present invention is individually packaged in a bag and supplied in a sealed state. Therefore, the surface of the fusion material with core 1 is in a state where there is no contamination or oxidation until it is taken out of the bag. In addition, when the pipe ends are individually supplied in a state of being sealed with a cap or the like, and the pipes are connected to each other,
If necessary, the tube end face is cut to obtain a predetermined length. Therefore, at the time of connection, the end of the pipe is not contaminated and is not oxidized. Of course, if contamination or oxidation is a concern, it goes without saying that a new pipe end face may be exposed by cutting the pipe end face.
【００３６】この状態のコア付き融着材１のコア部１
２，１２を管Ｐ１，Ｐ２の管端部に挿入し、その管端面
が融着リング部１３の両側面１３１に全て均等に当接し
ているかどうかを確認した上で、管Ｐ１，Ｐ２同士を通
常の融着継手用クランプ（図示せず）等で把持し固定す
る。この時に使用されるクランプは、可能ならば、管Ｐ
１，Ｐ２を把持した後、クランプ間隔が絶えず近づくよ
うにされたものであると、コア付き融着材１のコア部１
２両側面と管端面とが強く当接し、融着時に樹脂に圧力
が掛かり易く充分な接着強度が得られるので、このよう
なクランプが用いられることが望ましい。Core portion 1 of fusion material with core 1 in this state
2 and 12 are inserted into the pipe ends of the pipes P1 and P2, and it is confirmed whether or not the pipe end faces are uniformly abutted on both side faces 131 of the fusion bonding ring portion 13, and then the pipes P1 and P2 are connected to each other. Grip and fix with a normal fusion splice clamp (not shown). The clamp used at this time should be a pipe P if possible.
The core portion 1 of the fusion material with core 1 is such that the clamp intervals are made to be closer to each other after gripping 1, P2.
It is desirable to use such a clamp because the two side surfaces strongly contact the tube end surface and pressure is easily applied to the resin at the time of fusion bonding to obtain sufficient adhesive strength.
【００３７】クランプ等で把持された際、コア付き融着
材１と管Ｐ１，Ｐ２同士とが正しく配置できたかどうか
が容易に判断できる。勿論、クランプはバット融着専用
のものである必要はない。When gripped by a clamp or the like, it can be easily judged whether or not the fusion material with core 1 and the pipes P1 and P2 are properly arranged. Of course, the clamp need not be dedicated to butt fusion.
【００３８】コア付き融着材１と管Ｐ１，Ｐ２同士とが
正しく配置されたら、常法に従って電源をリード端子１
５に接続して通電し、溝１３３から溶融した樹脂が流出
することを確認して、突き合わせ融着接続が完了する。When the fusion material with core 1 and the pipes P1 and P2 are correctly arranged, the power source is connected to the lead terminal 1 according to a conventional method.
5 and energized to confirm that molten resin flows out from the groove 133, and the butt fusion connection is completed.
【００３９】次に、本発明のコア付き融着材の更に別の
例を図６、図７を参照して説明する。図６に示す例のコ
ア付き融着材１′では、コア部１２の両側部の外周面に
周方向に沿って凹溝１６が設けられ、該凹溝１６にゴム
輪１７が装着されており、コア部１２の両側部の外周面
であって、融着リング部１３に近接した部分にコールド
ゾーン１８が設けられていること以外は、図２を参照し
て説明したものと同じである。Next, still another example of the fusion material with core of the present invention will be described with reference to FIGS. 6 and 7. In the fusion material with core 1'in the example shown in FIG. 6, concave grooves 16 are provided along the circumferential direction on the outer peripheral surfaces of both sides of the core portion 12, and the rubber ring 17 is attached to the concave grooves 16. The same as that described with reference to FIG. 2 except that the cold zones 18 are provided on the outer peripheral surfaces of both sides of the core portion 12 in the vicinity of the fusion ring portion 13.
【００４０】図７に示す例のコア付き融着材１′′で
は、コア部１２の両側部の外周面に周方向に沿って凹溝
１６が設けられ、該凹溝１６にゴム輪１７が装着されて
おり、コア部１２の両側部の外周面であって、融着リン
グ部１３に近接した部分にコールドゾーン１８が設けら
れていること以外は、図５を参照して説明したものと同
じである。In the fusion material with core 1 ″ shown in FIG. 7, concave grooves 16 are provided along the circumferential direction on the outer peripheral surfaces of both sides of the core portion 12, and the rubber ring 17 is provided in the concave grooves 16. Except for the fact that the cold zones 18 are provided on the outer peripheral surfaces of both sides of the core portion 12 in the vicinity of the fusion-bonding ring portion 13, they are described with reference to FIG. Is the same.
【００４１】これらコア付き融着材１′，１′′は、ポ
リエチレン管等からなる既設管に新しいポリエチレン管
をつなぐ際に、バルブ等の不都合できっちり止水するこ
とができない状況下等での管端同士を突き合わせ融着接
続する場合に好適に使用される。These fusion materials with cores 1 ', 1''are used under conditions such as valves, etc., where water cannot be shut off properly when connecting a new polyethylene pipe to an existing pipe made of polyethylene pipe or the like. It is preferably used when the tube ends are butt-welded and fusion-bonded.
【００４２】このコア付き融着材１′，１′′を用いて
管端同士を突き合わせ融着接続する方法は、以下のよう
にする。水が流れている既設管Ｐ１の管端部にコア付き
融着材１′，１′′のコア部１２の一方の端部を挿入す
る。このとき、一旦途中まで差し込んで管Ｐ１の管端面
の水気を取った後奥まで差し込む。コア付き融着材
１′，１′′のコア部１２の他方の端部を他方の端部を
新管Ｐ２に挿入する。このときも、一旦途中まで管Ｐ２
の管端面の水気を取った後奥まで差し込む。その後の融
着接続方法は、上記の図２〜図５を参照して説明した場
合と同じようにする。The method of butt-welding and joining the tube ends by using the fusion material with core 1 ', 1''is as follows. One end of the core portion 12 of the fusion material with core 1 ', 1''is inserted into the pipe end of the existing pipe P1 through which water flows. At this time, the pipe P1 is inserted halfway to remove water from the pipe end surface of the pipe P1 and then inserted deeply. The other end of the core portion 12 of the fusion material with core 1 ', 1''is inserted into the new pipe P2. Also at this time, once the pipe P2
After removing the water from the pipe end surface, insert it all the way in. The subsequent fusion splicing method is the same as that described with reference to FIGS.
【００４３】次に、本発明のコア付き融着材の更に別の
例を図８及び図９を参照して説明する。このコア付き融
着材２は、融着リング部２３と、融着リング部２３の通
孔の内縁部から、両端部に融着リング部２３の両側方に
突出し、熱可塑性樹脂管Ｐ３，Ｐ４の接続部に挿入され
る外径が相互に異なる円筒状のコア部２１，２２とから
なる。一方のコア部２１は一方の口径が大きい管Ｐ３の
接続部の内径と略同じか僅かに小さい外径を有してお
り、他方のコア部２２は他方の口径が小さい管Ｐ４の接
続部の内径と略同じか僅かに小さい外径を有している。Next, still another example of the fusion material with core of the present invention will be described with reference to FIGS. 8 and 9. The fusion material 2 with a core projects from the fusion ring portion 23 and the inner edge portion of the through hole of the fusion ring portion 23 to both ends of the fusion ring portion 23 on both sides of the fusion ring portion 23 to form the thermoplastic resin pipes P3 and P4. The cylindrical core parts 21 and 22 having different outer diameters are inserted into the connection part of the. One core portion 21 has an outer diameter that is substantially the same as or slightly smaller than the inner diameter of the connecting portion of the pipe P3 having the larger diameter, and the other core portion 22 has the outer diameter of the connecting portion of the pipe P4 having the smaller diameter. It has an outer diameter that is about the same as or slightly smaller than the inner diameter.
【００４４】融着リング部２３の両側面がコア部２１，
２２に対して直角面とされ、側面のいずれの表面近傍に
も通電により発熱する発熱線２４が、配設間隔が均一で
埋設深さがコア部側が浅くなるように埋設され、融着リ
ング部２３外周面に発熱線のリード端子２５が設けられ
ている。Both sides of the fusion-bonded ring portion 23 have core portions 21,
A heating wire 24, which is a surface perpendicular to 22 and which generates heat by energization near any of the side surfaces, is embedded so that the arrangement interval is uniform and the embedding depth is shallower on the core portion side. A heating wire lead terminal 25 is provided on the outer circumferential surface of the heating wire 23.
【００４５】尚、発熱線は、配設間隔が均一で同じ深さ
で埋設されていてもよいし、配設間隔がコア部側が密と
され同じ深さで埋設されていてもよいし、配設間隔がコ
ア部側が密とされ埋設深さがコア部側が浅くされていて
もよい。The heating wires may be evenly arranged and buried at the same depth, or the heating wires may be buried at the same depth with the core portion side being densely arranged. The installation interval may be dense on the core part side and the embedding depth may be shallow on the core part side.
【００４６】発熱線２４は、コア部２１，２２側近傍に
は配設されていない。従って、コア部２１，２２近傍の
樹脂は溶融することがなく、いわゆるコールドゾーンと
して作用する。即ち、溶融した樹脂は、コールドゾーン
で堰き止められてコア部２１，２２側には流れず、コア
部２１，２２を変形させることがない。The heating wire 24 is not arranged near the core portions 21, 22. Therefore, the resin in the vicinity of the core portions 21 and 22 does not melt and acts as a so-called cold zone. That is, the molten resin is blocked by the cold zone and does not flow to the core portions 21 and 22 side, so that the core portions 21 and 22 are not deformed.
【００４７】融着リング部２３の両側面２３１は、コア
部２１，２２に対して直角とされている。従って、コア
部２１，２２が正しく管Ｐ３，Ｐ４の各管端部に挿入さ
れ、接続される管Ｐ３，Ｐ４同士のどちらの管Ｐ３，Ｐ
４の管端面も管軸に対し正しく直角に切断されていれ
ば、融着リング部２３の両側面２３１は、どちらの管Ｐ
３，Ｐ４の管端面全部にも当接する。Both side surfaces 231 of the fusion ring portion 23 are formed at right angles to the core portions 21 and 22. Therefore, the core portions 21 and 22 are correctly inserted into the respective pipe ends of the pipes P3 and P4, and which of the pipes P3 and P4 to be connected is connected.
If the pipe end face of No. 4 is also cut right at right angles to the pipe axis, both side faces 231 of the fusion bonding ring portion 23 will be
It also comes into contact with all the pipe end surfaces of P3 and P4.
【００４８】上記融着リング部２３のいずれの側面２３
１にも、径方向に向かって少なくとも１条以上の溝２３
３が設けられている。溶融した樹脂は、該溝２３３を通
って融着リング部２３の外部に湧出するから、溶融箇所
の空気が抜けると共に、融着が完全に行われたことが容
易に分かる。Any of the side surfaces 23 of the fusion bonding ring portion 23
1 also has at least one groove 23 in the radial direction.
3 is provided. The melted resin flows out through the groove 233 to the outside of the fusion ring portion 23, so that it is easy to see that the air at the fusion portion escapes and the fusion is completely performed.
【００４９】融着リング部２３の中央部の内周面は、外
径の大きなコア部２１の内面から外径の小さいコア部２
２の内面に向けて次第に小径となるテーパー面とされて
いる。The inner peripheral surface of the central portion of the fusion-bonding ring portion 23 is from the inner surface of the core portion 21 having a large outer diameter to the core portion 2 having a small outer diameter.
2 is a taper surface whose diameter gradually decreases toward the inner surface.
【００５０】このコア付き融着材２を用いて管端同士を
突き合わせ融着接続する方法は、以下のようにする。コ
ア付き融着材２のコア部２１を口径の大きい管Ｐ３の管
端部に挿入し、コア部２２を口径の小さい管Ｐ４の管端
部に挿入し、その管端面が融着リング部２３の両側面２
３１に全て均等に当接しているかどうかを確認した上
で、管Ｐ３，Ｐ４同士を通常の融着継手用クランプ（図
示せず）等で把持し固定する。この時に使用されるクラ
ンプは、可能ならば、管を把持した後、クランプ間隔が
絶えず近づくようにされたものであると、コア付き融着
材１のコア部２両側面と管端面とが強く当接し、融着時
に樹脂に圧力が掛かり易く充分な接着強度が得られるの
で、このようなクランプが用いられることが望ましい。The method of butt-welding and joining the tube ends using the fusion material with core 2 is as follows. The core portion 21 of the fusion material with core 2 is inserted into the pipe end portion of the pipe P3 having a large diameter, the core portion 22 is inserted into the pipe end portion of the pipe P4 having a small diameter, and the pipe end surface has the fusion ring portion 23. Both sides of
After confirming whether all of the pipes 31 are evenly contacted with each other, the pipes P3 and P4 are held and fixed by an ordinary fusion-bonding clamp (not shown) or the like. If the clamp used at this time is such that the clamp interval is constantly close after gripping the tube, if possible, the both side surfaces of the core portion 2 of the fusion material with core 1 and the tube end surface are strong. It is desirable to use such a clamp because it is easy to apply pressure to the resin at the time of abutting and fusing, and sufficient adhesive strength can be obtained.
【００５１】クランプ等で把持された際、コア付き融着
材２と管Ｐ３，Ｐ４同士とが正しく配置できたかどうか
が容易に判断できる。勿論、クランプはバット融着専用
のものである必要はない。コア付き融着材２と管Ｐ３，
Ｐ４同士とが正しく配置されたら、常法に従って電源を
リード端子２５に接続して通電し、溝２３３から溶融し
た樹脂が流出することを確認して、突き合わせ融着接続
が完了する。It can be easily judged whether or not the fusion material with core 2 and the pipes P3 and P4 are properly arranged when gripped by a clamp or the like. Of course, the clamp need not be dedicated to butt fusion. Core fusion material 2 and pipe P3
When P4 and P4 are correctly arranged, a power source is connected to the lead terminal 25 and electricity is applied in accordance with a conventional method, it is confirmed that the molten resin flows out from the groove 233, and the butt fusion connection is completed.
【００５２】次に、本発明のコア付き融着材の更に別の
例を図１０及び図１１を参照して説明する。このコア付
き融着材３は、曲管状の熱可塑性樹脂製本体３３の両側
に、管Ｐ５，Ｐ６の接続部に挿入される円筒状のコア部
３１，３２が突設されている。コア部３１，３２は、管
Ｐ５，Ｐ６の接続部の内径と略同じか僅かに小さい外径
を有している。Next, still another example of the fusion material with core of the present invention will be described with reference to FIGS. The fusion material 3 with a core is provided with cylindrical core portions 31 and 32 that are inserted into the connecting portions of the pipes P5 and P6 on both sides of a bent tubular thermoplastic resin main body 33. The core portions 31 and 32 have an outer diameter that is substantially the same as or slightly smaller than the inner diameter of the connecting portion of the pipes P5 and P6.
【００５３】本体３３のコア部３１，３２の基端部の外
側に、コア部３１，３２が挿入された管Ｐ５，Ｐ６の端
面が当接可能な側面を有する融着部３３が突設されてい
る。融着部３３の管側の側面がコア部３１，３２に対し
て直角面とされ、側面のいずれの表面近傍にも通電によ
り発熱する発熱線３４，３４が、埋設間隔が均一で埋設
深さが均一となるように埋設され、融着部の中央部外周
面に発熱線のリード端子３５が設けられている。On the outside of the base end portions of the core portions 31, 32 of the main body 33, a fusion-bonding portion 33 having a side surface with which the end faces of the pipes P5, P6 in which the core portions 31, 32 are inserted can abut is provided. ing. The tube-side side surface of the fusion-bonded portion 33 is a right-angled surface with respect to the core portions 31 and 32, and the heating wires 34 and 34, which generate heat when energized, are evenly buried in both sides of the core portions 31 and 32 with a uniform embedding depth. Are embedded so as to be uniform, and the heating wire lead terminals 35 are provided on the outer peripheral surface of the central portion of the fusion-bonded portion.
【００５４】尚、発熱線は、配設間隔がコア部側が密と
され同じ深さで埋設されていてもよいし、配設間隔が均
一で埋設深さがコア部側が浅くなるように埋設されてい
てもよいし、配設間隔がコア部側が密とされ埋設深さが
コア部側が浅くされていてもよい。It should be noted that the heating wires may be buried at the same depth in which the core portions are densely arranged, or the heating wires are buried so that the arrangement intervals are uniform and the embedding depth is shallow on the core portion side. Alternatively, the arrangement interval may be close on the core portion side and the embedding depth may be shallow on the core portion side.
【００５５】発熱線３４は、コア部３１，３２側近傍に
は配設されていない。従って、コア部３１，３２近傍の
樹脂は溶融することがなく、いわゆるコールドゾーンと
して作用する。即ち、溶融した樹脂は、コールドゾーン
で堰き止められてコア部３１，３２側には流れず、コア
部３１，３２を変形させることがない。The heating wire 34 is not arranged near the core portions 31, 32 side. Therefore, the resin in the vicinity of the core portions 31 and 32 does not melt and acts as a so-called cold zone. That is, the melted resin is blocked in the cold zone and does not flow to the core portions 31 and 32 side, and does not deform the core portions 31 and 32.
【００５６】上記融着部３３のいずれの側面３３１に
も、径方向に向かって少なくとも１条以上の溝３３３が
設けられている。溶融した樹脂は、該溝３３３を通って
融着リング部３３の外部に湧出するから、溶融箇所の空
気が抜けると共に、融着が完全に行われたことが容易に
分かる。At least one groove 333 is provided in the radial direction on any side surface 331 of the fusion-bonded portion 33. The melted resin flows out through the groove 333 to the outside of the fusion ring portion 33, so that it is easy to see that the air at the fusion portion is released and the fusion is completely performed.
【００５７】尚、この例では、融着部３３がコア部３
１，３２の基端部間の外側に設けられている場合につい
て説明したが、融着部はコア部３１，３２の基端部の外
側にのみ設けられていて、電熱線のリード端子が本体３
３の略中央部の外周面に設けられていても構わない。In this example, the fusion bonding portion 33 is the core portion 3
Although the case where it is provided on the outside between the base end portions of 1, 32 is described, the fusion bonding portion is provided only on the outside of the base end portion of the core portions 31, 32, and the lead terminal of the heating wire is provided on the main body. Three
It may be provided on the outer peripheral surface of the substantially central portion of 3.
【００５８】又、融着部３３の両側方に突出したコア部
３１，３２の外径が相互に異なるようにして、異なる口
径の管を融着接続することができるようにしてもよい。Further, the outer diameters of the core portions 31 and 32 protruding on both sides of the fusion-bonding portion 33 may be different from each other so that pipes having different diameters can be fusion-bonded.
【００５９】このコア付き融着材３を用いて管端同士を
突き合わせ融着接続する方法は、以下のようにする。即
ち、コア付き融着材３のコア部３２，３２を、管軸が９
０°ずれた状態の管Ｐ５，Ｐ６の管端部に挿入し、その
管端面が融着部３３の両側面３３１に全て均等に当接し
ているかどうかを確認した上で、管Ｐ５，Ｐ６同士を通
常の融着継手用クランプ（図示せず）等で把持し固定す
る。この時に使用されるクランプは、可能ならば、管Ｐ
５，Ｐ６を把持した後、クランプ間隔が絶えず近づくよ
うにされたものであると、コア付き融着材３のコア部３
２両側面と管端面とが強く当接し、融着時に樹脂に圧力
が掛かり易く充分な接着強度が得られるので、このよう
なクランプが用いられることが望ましい。The method of butt-welding and joining the tube ends by using this fusion material with core 3 is as follows. That is, the core portions 32, 32 of the fusion material with core 3 are
The pipes P5 and P6 are inserted into the pipe ends of the pipes P5 and P6 which are deviated by 0 °, and it is confirmed whether or not all the pipe end faces abut both side faces 331 of the fusion-bonded portion 33. Is held and fixed by a usual fusion splicing clamp (not shown) or the like. The clamp used at this time should be a pipe P if possible.
When the clamp interval is made to be constantly close after gripping 5, P6, the core portion 3 of the fusion material with core 3
It is desirable to use such a clamp because the two side surfaces strongly contact the tube end surface and pressure is easily applied to the resin at the time of fusion bonding to obtain sufficient adhesive strength.
【００６０】クランプ等で把持された際、コア付き融着
材３と管Ｐ５，Ｐ６同士とが正しく配置できたかどうか
が容易に判断できる。勿論、クランプはバット融着専用
のものである必要はない。コア付き融着材３と管Ｐ５，
Ｐ６同士とが正しく配置されたら、常法に従って電源を
リード端子３５に接続して通電し、溝３３３から溶融し
た樹脂が流出することを確認して、突き合わせ融着接続
が完了する。It is possible to easily judge whether or not the fusion material with core 3 and the pipes P5 and P6 are properly arranged when gripped by a clamp or the like. Of course, the clamp need not be dedicated to butt fusion. Core fusion material 3 and pipe P5
When P6 and P6 are correctly arranged, a power source is connected to the lead terminal 35 and electricity is applied in accordance with a conventional method, it is confirmed that the molten resin flows out from the groove 333, and the butt fusion connection is completed.
【００６１】[0061]
【発明の効果】以上の通りであるから、本発明のコア付
き融着材は、管同士の突き合わせ融着接続時に、管端部
外表面の切削を必要とせず、かつ融着時にマーキングの
必要がなく、専用の融着機を必要とせずに突き合わせ融
着が可能である。As described above, the fusion material with a core of the present invention does not require cutting of the outer surface of the pipe end at the time of butt fusion welding of pipes, and does not require marking at the time of fusion welding. However, butt fusion is possible without the need for a dedicated fusion machine.
【図１】本発明のコア付き融着材の一例の外観斜視図で
ある。FIG. 1 is an external perspective view of an example of a fusion material with a core according to the present invention.
【図２】発熱線の配設間隔が均一で同じ深さで埋設され
ているものの一例の一部分の断面図である。FIG. 2 is a cross-sectional view of a part of an example in which the heating wires are evenly arranged and buried at the same depth.
【図３】発熱線の配設間隔が均一で埋設深さがコア部側
が深くされているものの一例の一部分の断面図である。FIG. 3 is a sectional view of a part of an example in which the heating wires are arranged at uniform intervals and the burying depth is deeper on the core portion side.
【図４】発熱線の配設間隔がコア部側が密とされ同じ深
さで埋設されているものの一例の一部分の断面図であ
る。FIG. 4 is a cross-sectional view of a portion of an example in which the heat generating wires are closely arranged on the core portion side and are embedded at the same depth.
【図５】発熱線の配設間隔がコア部側が密とされ埋設深
さがコア部側が深くされているものの一例の一部分の断
面図である。FIG. 5 is a cross-sectional view of a part of an example in which the heat generating wires are arranged closely on the core portion side and the embedding depth is deep on the core portion side.
【図６】本発明のコア付き融着材の更に別の例の一部分
の断面図である。FIG. 6 is a partial cross-sectional view of still another example of the fusion material with core of the present invention.
【図７】本発明のコア付き融着材の更に別の例の一部分
の断面図である。FIG. 7 is a partial cross-sectional view of still another example of the fusion material with core of the present invention.
【図８】本発明のコア付き融着材の更に別の例の斜視図
である。FIG. 8 is a perspective view of still another example of the fusion material with core of the present invention.
【図９】本発明のコア付き融着材の更に別の例の一部分
の断面図である。FIG. 9 is a partial cross-sectional view of still another example of the fusion material with core of the present invention.
【図１０】本発明のコア付き融着材の更に別の例の斜視
図である。FIG. 10 is a perspective view of still another example of the fusion material with core of the present invention.
【図１１】本発明のコア付き融着材の更に別の例の断面
図である。FIG. 11 is a cross-sectional view of still another example of the fusion material with core of the present invention.
１，１′，１′′，２，３ コア付き融着材 １２，２１，２２，３１，３２ コア部 １３，２３ 融着リング部 １３１ リング部側面 １３２ リング部外周面 １３３，２３３，３３３ 溝 １３４ コールドゾーン １４，２４，３４ 発熱線 １５，２５，３５ リード端子 ３３ 融着部 Ｄ 融着リング部の厚さ Ｈ 融着リング部の高さ 1,1 ', 1' ', 2,3 Fusion material with core 12, 21, 22, 31, 32 Core part 13, 23 Fusion ring part 131 side of ring 132 Ring part outer peripheral surface 133, 233, 333 grooves 134 Cold Zone 14, 24, 34 heating line 15, 25, 35 lead terminals 33 Fusion part D Thickness of fused ring H Fusion ring height
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3H019 GA03 4F211 AA04 AD05 AD12 AD24 AD25 AG08 AH11 AH43 TA01 TC11 TD07 TN31 ─────────────────────────────────────────────────── ─── Continued front page F-term (reference) 3H019 GA03 4F211 AA04 AD05 AD12 AD24 AD25 AG08 AH11 AH43 TA01 TC11 TD07 TN31
Claims (8)
続する時に管端部に挿着して用いられるコア付き融着材
であって、外径が上記熱可塑性樹脂管の内径と略同じか
僅かに小さい外径を有する円筒状のコア部と、該コア部
の略中央部外周面に設けられた熱可塑性樹脂製融着リン
グ部とからなり、該融着リング部の両側面がコア部に対
して直角面とされ、該側面のいずれの表面近傍にも通電
により発熱する発熱線が埋設され、融着リング部外周面
に発熱線のリード端子が設けられていることを特徴とす
るコア付き融着材。1. A fusion material with a core, which is used by being inserted into a pipe end portion when butt fusion-splicing thermoplastic resin pipes and whose outer diameter is substantially the same as the inner diameter of the thermoplastic resin pipe. It is composed of a cylindrical core portion having a slightly smaller outer diameter and a thermoplastic resin fusion bonding ring portion provided on the outer peripheral surface of the substantially central portion of the core portion, and both side surfaces of the fusion bonding ring portion are core portions. A core which is a right-angled surface with respect to the core, a heating wire that generates heat by energization is embedded near any surface of the side surface, and a lead terminal for the heating wire is provided on the outer peripheral surface of the fusion ring portion. Adhesive material.
続する時に用いられるコア付き融着材であって、融着リ
ング部と、該融着リング部の通孔の内縁部から、両端部
に該融着リング部の両側方に突出し、前記熱可塑性樹脂
管の接続部に挿入される、該接続部の内径と略同じか僅
かに小さい外径を有する円筒状のコア部とからなり、上
記融着リング部の両側面が上記コア部に対して直角面と
され、該側面のいずれの表面近傍にも通電により発熱す
る発熱線が埋設され、融着リング部外周面に発熱線のリ
ード端子が設けられていることを特徴とするコア付き融
着材。2. A fusion material with a core, which is used when butt fusion-bonding thermoplastic resin pipes to each other, wherein the fusion ring portion and an inner edge portion of a through hole of the fusion ring portion are provided at both end portions. The fusion-bonded ring portion is projected from both sides and is inserted into the connection portion of the thermoplastic resin pipe, and is composed of a cylindrical core portion having an outer diameter substantially the same as or slightly smaller than the inner diameter of the connection portion, Both sides of the fusion ring portion are perpendicular to the core portion, and a heating wire that generates heat by energization is embedded near any of the side surfaces, and a lead terminal of the heating wire is provided on the outer peripheral surface of the fusion ring portion. A fusion material with a core, characterized in that
続する時に用いられるコア付き融着材であって、曲管状
の熱可塑性樹脂製本体の両側に、上記管の接続部に挿入
される、該接続部の内径と略同じか僅かに小さい外径を
有する円筒状のコア部が突設され、該本体の該コア部の
基端部の外側に、該コア部が挿入された管の端面が当接
可能な側面を有する融着部が突設され、該融着部の上記
管側の側面が上記コア部に対して直角面とされ、該側面
のいずれの表面近傍にも通電により発熱する発熱線が埋
設され、融着部外周面又は上記本体外周面に発熱線のリ
ード端子が設けられていることを特徴とするコア付き融
着材。3. A fusion material with a core, which is used when butt-welding and joining thermoplastic resin pipes to each other, and is inserted into the connecting portion of the pipes on both sides of a curved thermoplastic resin body. An end surface of a pipe in which a cylindrical core portion having an outer diameter substantially equal to or slightly smaller than the inner diameter of the connection portion is provided in a protruding manner, and the core portion is inserted outside the base end portion of the core portion of the main body. A projecting fusion portion having a side surface capable of contacting with each other, the side surface of the fusion portion on the tube side is a right-angled surface with respect to the core portion, and heat is generated by energizing any surface of the side surface. And a lead terminal of the heating wire is provided on the outer peripheral surface of the fusion-bonded portion or the outer peripheral surface of the main body.
着部の上記管側のいずれの側面にも、径方向に向かって
少なくとも１条以上の溝が設けられていることを特徴と
する請求項１乃至請求項３のいずれか１項記載のコア付
き融着材。4. At least one groove is provided in the radial direction on any side surface of the fusion-bonding ring portion or any side surface on the tube side of the fusion-bonding portion. The fusion material with a core according to any one of claims 1 to 3.
傍には発熱線が埋設されていないことを特徴とする請求
項１乃至請求項４のいずれか１項記載のコア付き融着
材。5. The fusion with core according to any one of claims 1 to 4, wherein a heating wire is not embedded in the vicinity of the fusion ring portion or the core portion of the fusion portion. Material.
着部の上記管側のいずれの側面に埋設された発熱線の配
列間隔も、融着リング部又は融着部の外周部側に向かっ
て粗とされている、又は融着リング部又は融着部のコア
部側における配設深さが、融着リング部又は融着部の外
周部側における配設深さよりも融着リング部又は融着部
の側表面に近くされていることを特徴とする請求項１乃
至請求項５のいずれか１項記載のコア付き融着材。6. The arrangement interval of the heating wires buried on any side surface of the fusion ring portion or on any side surface of the fusion portion on the tube side is also on the outer periphery side of the fusion ring portion or the fusion portion. The arrangement depth on the core portion side of the fusing ring portion or the fusing portion is rougher toward the fusing ring portion than on the outer peripheral side of the fusing ring portion or the fusing portion. Alternatively, the fusion material with core according to any one of claims 1 to 5, wherein the fusion material is close to the side surface of the fusion portion.
沿って凹溝が設けられ、該凹溝にゴム輪が装着されてい
ることを特徴とする請求項１乃至請求項６のいずれか１
項記載のコア付き融着材。7. The core according to claim 1, wherein a concave groove is provided along the circumferential direction on the outer peripheral surfaces of both sides of the core portion, and a rubber ring is attached to the concave groove. Either one
The fusion material with core according to the item.
着リング部もしくは融着部の両側方に突出した両コア部
の外径が相互に異なることを特徴とする請求項２乃至請
求項７のいずれか１項記載のコア付き融着材。8. The outer diameters of the core portions at both ends of the tubular body, or the core portions protruding to both sides of the fusion ring portion or the fusion portion are different from each other. A fusion material with a core according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001329401A JP2003090485A (en) | 2001-07-09 | 2001-10-26 | Fusion member with core |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001207891 | 2001-07-09 | ||
| JP2001-207891 | 2001-07-09 | ||
| JP2001329401A JP2003090485A (en) | 2001-07-09 | 2001-10-26 | Fusion member with core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003090485A true JP2003090485A (en) | 2003-03-28 |
Family
ID=26618365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001329401A Pending JP2003090485A (en) | 2001-07-09 | 2001-10-26 | Fusion member with core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003090485A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7182806B2 (en) | 2003-07-18 | 2007-02-27 | Fujifilm Imaging Colorants Limited | Phthalocyanines and their use in ink-jet printers |
| US7189283B2 (en) | 2003-07-18 | 2007-03-13 | Fujifilm Imaging Colorants Limited | Phthalocyanines and their use in ink-jet printers |
| US7678899B2 (en) | 2003-07-18 | 2010-03-16 | Fujifilm Imaging Colorants Limited | Phthalocyanines and their use in ink-jet printers |
| EP2873513A1 (en) * | 2013-11-19 | 2015-05-20 | Georg Fischer Rohrleitungssysteme AG | Moulded connection component for electrically welded tubes |
| JP2020122516A (en) * | 2019-01-30 | 2020-08-13 | 積水化学工業株式会社 | Method for manufacturing fusion pipe, and fusion pipe |
-
2001
- 2001-10-26 JP JP2001329401A patent/JP2003090485A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7182806B2 (en) | 2003-07-18 | 2007-02-27 | Fujifilm Imaging Colorants Limited | Phthalocyanines and their use in ink-jet printers |
| US7189283B2 (en) | 2003-07-18 | 2007-03-13 | Fujifilm Imaging Colorants Limited | Phthalocyanines and their use in ink-jet printers |
| US7678899B2 (en) | 2003-07-18 | 2010-03-16 | Fujifilm Imaging Colorants Limited | Phthalocyanines and their use in ink-jet printers |
| EP2873513A1 (en) * | 2013-11-19 | 2015-05-20 | Georg Fischer Rohrleitungssysteme AG | Moulded connection component for electrically welded tubes |
| JP2020122516A (en) * | 2019-01-30 | 2020-08-13 | 積水化学工業株式会社 | Method for manufacturing fusion pipe, and fusion pipe |
| JP7235520B2 (en) | 2019-01-30 | 2023-03-08 | 積水化学工業株式会社 | Fusion tube manufacturing method and fusion tube |
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