JP3670323B2 - エレクトロフュージョン継手 - Google Patents
エレクトロフュージョン継手 Download PDFInfo
- Publication number
- JP3670323B2 JP3670323B2 JP29322494A JP29322494A JP3670323B2 JP 3670323 B2 JP3670323 B2 JP 3670323B2 JP 29322494 A JP29322494 A JP 29322494A JP 29322494 A JP29322494 A JP 29322494A JP 3670323 B2 JP3670323 B2 JP 3670323B2
- Authority
- JP
- Japan
- Prior art keywords
- receiving portion
- joint
- electrofusion joint
- circumferential direction
- electrofusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- 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
- 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
- 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
- B29C66/12—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
- B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
- B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined
- B29C66/30325—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one 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
- B29C66/01—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
- B29C66/50—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
- B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
- B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【産業上の利用分野】
本発明は、プラスチック管が差し込まれる内周面に電熱線を一定ピッチで螺旋状に埋設し、差し込まれたプラスチック管との融着を通電によって行うソケット系のエレクトロフュージョン継手に関する。
【0002】
【従来技術】
この種のエレクトロフュージョン継手は既知で、ソケット継手(図1)、エルボ継手(図2)、レジューサ継手(図3)、キャップ継手(図4)など種々のタイプのものがあり、大半の継手が奥側に内径を小さくして段状をなす位置決め用の受け部1を有しており、プラスチック管2を差し込むときには、受け部1に突き当たるまで差し込んで一定の差込み量を確保し、差込み不足を生じないようにしてある。
【0003】
【発明が解決しようとする課題】
上述するようなソケット系のエレクトロフュージョン継手のうち、受け部を有する継手では、融着時の溶融樹脂は図5に示すように、内側へは受け部によって樹脂の流れが止められるが、外側へは流れを止めるものがないため、外側に向かって流れる傾向を有する。
【0004】
そのため上述するようなソケット系のエレクトロフュージョン継手では、融着時に電熱線が外側に向かって移動し易く、その結果、図6に示すように、電熱線3同志が接触してショートを起こし易いという不具合を有している。
本発明は、こうした受け部を有するソケット系エレクトロフュージョン継手の不具合を解消することを目的としてなされたものである。
【0005】
【課題の解決手段及び作用】
本発明のエレクトロフュージョン継手は、上記の目的を達成するための手段として、奥側の段状をなす受け部に周方向に適当間隔で軸方向のスリットを形成するか、或いは受け部を一ないし周方向に適当間隔を有する複数の内向きに突出するリブ若しくはピンで形成してなるものである。
【0006】
【作 用】
融着時には、スリットを通して或いはリブやピン以外の箇所より樹脂が流れ、受け部で樹脂が閉塞して流れが止められることがないため、外側及び内側に向かう樹脂の流れが均一となり、電熱線の流れが減少して電熱線同志の接触によるショートが減少する。
【0007】
【実施例】
図7及び図8は、レジューサ継手5の受け部6に軸方向のスリット7を周方向に一定間隔で多数形成してなるものであり、図9は、同継手の受け部を内向きに上下対称形をなして突出するリブ8により形成したものである。
また図10は、受け部を図9のリブの代わりに大径側においてはテーパ状のリブ11により、小径側においては、ピン12により形成したものである。同図に示されるように、融着時においては、内側に外側と同様に樹脂が流れる。
【0008】
【発明の効果】
本発明のエレクトロフュージョン継手によれば、融着時に溶融樹脂が受け部で閉塞して、その流れを止められることがないため、内側にも外側と同様の樹脂の流れを生じるようになり、樹脂は両側へ均一に流れるようになるため、電熱線の流れが減少し、電熱線同志の接触によるショートを著しく減少させることができる。
【図面の簡単な説明】
【図1】 ソケット継手の断面図。
【図2】 エルボ継手の断面図。
【図3】 レジューサ継手の断面図。
【図4】 キャップ継手の断面図。
【図5】 レジューサ継手における融着時の樹脂の流れを示す図。
【図6】 電熱線同志が接触してショートしたときの状態を示す図。
【図7】 本発明に係るレジューサ継手の断面図。
【図8】 図7のA−A線断面図。
【図9】 別の実施例の断面図。
【図10】 更に別の実施例の断面図。
【符号の説明】
1・・受け部 2・・プラスチック管
3・・電熱線 5・・レジューサ継手
6・・受け部 7・・スリット
8、11・・リブ 12・・ピン
Claims (4)
- プラスチック管差込み時の位置決めとなる段状の受け部を奥側に形成したエレクトロフュージョン継手において、受け部に軸方向のスリットを周方向に適当間隔で形成したことを特徴とするエレクトロフュージョン継手。
- プラスチック管差込み時の位置決めとなる段状の受け部を奥側に形成したエレクトロフュージョン継手において、受け部を一ないし周方向に適当間隔を有する複数の内向きに突出するリブで形成したことを特徴とするエレクトロフュージョン継手。
- 上記受け部がリブ若しくはピンである請求項1記載のエレクトロフュージョン継手。
- プラスチック管差込み時の位置決めとなる段状の受け部を奥側に形成し、プラスチック管が両側より差し込まれエレクトロフュージョン継手において、受け部の一端が一ないし周方向に適当間隔を有する複数の内向きに突出するリブで、他端がピンで形成されることを特徴とするエレクトロフュージョン継手。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29322494A JP3670323B2 (ja) | 1994-11-28 | 1994-11-28 | エレクトロフュージョン継手 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29322494A JP3670323B2 (ja) | 1994-11-28 | 1994-11-28 | エレクトロフュージョン継手 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08152091A JPH08152091A (ja) | 1996-06-11 |
JP3670323B2 true JP3670323B2 (ja) | 2005-07-13 |
Family
ID=17792037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP29322494A Expired - Fee Related JP3670323B2 (ja) | 1994-11-28 | 1994-11-28 | エレクトロフュージョン継手 |
Country Status (1)
Country | Link |
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JP (1) | JP3670323B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8349122B2 (en) | 2006-05-24 | 2013-01-08 | Heateflex Corporation | Fusion welding fittings with weld bead cover |
JP6111991B2 (ja) * | 2013-11-18 | 2017-04-12 | トヨタ紡織株式会社 | 金属ナット付き樹脂成形品 |
-
1994
- 1994-11-28 JP JP29322494A patent/JP3670323B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH08152091A (ja) | 1996-06-11 |
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