JPH11118084A - 分岐管継手の融着方法 - Google Patents

分岐管継手の融着方法

Info

Publication number
JPH11118084A
JPH11118084A JP9282430A JP28243097A JPH11118084A JP H11118084 A JPH11118084 A JP H11118084A JP 9282430 A JP9282430 A JP 9282430A JP 28243097 A JP28243097 A JP 28243097A JP H11118084 A JPH11118084 A JP H11118084A
Authority
JP
Japan
Prior art keywords
branch pipe
saddle
back surface
cylindrical body
connection hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9282430A
Other languages
English (en)
Inventor
Kazunori Umeda
一徳 梅田
Makoto Yamamoto
山本　　誠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Plastics Inc
Original Assignee
Mitsubishi Plastics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Plastics Inc filed Critical Mitsubishi Plastics Inc
Priority to JP9282430A priority Critical patent/JPH11118084A/ja
Publication of JPH11118084A publication Critical patent/JPH11118084A/ja
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • 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
    • B29C66/1226—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 one bevelled joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • 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
    • B29C66/861—Hand-held tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0045—Perforating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0081—Shaping techniques involving a cutting or machining operation before shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12463—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered
    • B29C66/12464—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered being V-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—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
    • B29C66/712—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 the composition of one of the parts to be joined being different from the composition of the other part

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

(57)【要約】 【課題】 本管に分岐管継手を確実かつ強固に融着接合
できると共に、分岐管継手に枝管を確実に接続できる分
岐管継手の融着方法を提供する。 【解決手段】 本管２の管壁適所に分岐管継手１のサド
ル１１の裏面から突出した円筒体の外径より若干小径の
接続孔２１を穿設する。次に、分岐管継手１のサドル１
１の裏面と円筒体１３の外周面、及び本管２に穿設した
接続孔２１の周壁面とその周縁外壁面に加熱板３を当て
がって同時に溶融させたのち、分岐管継手の裏面から突
出した円筒体１３を本管２の接続孔２１に嵌挿し、円筒
体２１の外周面を接続孔２１の周壁面に融着すると共
に、サドル１１の裏面を接続孔２１の周縁外壁面に押し
付けて融着する。

Description

【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、合成樹脂製本管か
ら枝管を取り出す際に、合成樹脂製分岐管継手を本管の
外壁面に確実、かつ強固に融着接合できる方法に関す
る。
【０００２】
【従来の技術】従来からポリエチレン製の本管から枝管
を取り出す場合には、図４に断面図で示した分岐管継手
１ａが使用されている。この分岐管継手１ａは略半円弧
状に湾曲した分岐サドル１１の上面から分岐管１２が一
体的に突出した構成からなっており、この分岐管継手１
ａを本管２ａの外壁面に接続する際には、本管２ａの管
壁適所に接続孔２１を穿設し、該接続孔２１の周縁外壁
面と、分岐サドル１１の裏面とを同時に加熱して溶融さ
せたのち、分岐サドル１１の裏面を接続孔２１の周縁外
壁面に押し付けて融着接合していた。
【０００３】
【発明が解決しようとする課題】しかしながら、この従
来継手には位置決め手段が設けられていないため、分岐
サドル１１の裏面を本管２ａの外壁面に押し付けて融着
接合するとき、本管２ａの接続孔２１と分岐管継手１ａ
の連通孔１４が位置ずれすることがあった。この問題を
回避するため、本管２ａの外壁適所に分岐サドル１１の
裏面を融着接合したのち、分岐管継手１ａの連通孔１４
に穿孔ドリルを通して連通孔１４と合致した位置に接続
孔２１を穿設することも行われている。ところが、この
施工方法の場合には、分岐管継手１ａの取り付け位置が
正確でないと分岐管１２の接続方向等が変動することに
よって、分岐管１２に枝管をうまく接続できないことが
あった。
【０００４】本発明はかかる課題を解決したものであっ
て、本管に分岐管継手を確実かつ強固に融着接合できる
と共に、分岐管継手に枝管を確実に接続できる分岐管継
手の融着方法を提供するものである。
【０００５】
【課題を解決するための手段】本発明は、略半円弧状に
湾曲したサドルの上面から分岐管が一体的に突出すると
共に、サドルの裏面に円筒体が一体的に突出した合成樹
脂製分岐管継手を合成樹脂製本管の外壁面に融着接合す
るにあたり、まず本管の管壁適所に分岐管継手のサドル
裏面から突出した円筒体の外径より若干小径の接続孔を
穿設する。次に、分岐管継手のサドルの裏面と円筒体の
外周面、及び本管に穿設した接続孔の周壁面とその周縁
外壁面に加熱板を当てがって同時に溶融させたのち、分
岐管継手の裏面から突出した円筒体を本管に穿設した接
続孔に嵌挿し、円筒体の外周面を接続孔の周壁面に融着
すると共に、サドルの裏面を接続孔の周縁外壁面に押し
付けて融着することを特徴とする。
【０００６】
【発明の実施の形態】以下、本発明の実施の形態を図面
にて詳細に説明する。図１は本発明の一実施例を示す展
開状態の断面図、図２は加熱工程を示す断面図、図３は
分岐管継手を本管に融着接合した状態を示す断面図であ
って、図中の１はポリエチレン、ポリブテン等の合成樹
脂からなる分岐管継手、２は分岐管継手と同種の合成樹
脂からなる本管、３は加熱板である。
【０００７】分岐管継手１はインジェクションによる一
体成形によって得られるものであって、略半円弧状に湾
曲したサドル１１の上面から分岐管１２が一体的に突出
すると共に、サドル１１の裏面に円筒体１３が一体的に
突出している。前記サドル１１の裏面は本管２の外壁面
とほぼ等しい曲率の湾曲面に形成されており、後述する
融着接合の際にサドル１１の裏面が本管２の外壁面と緊
密に密着するように形成されている。
【０００８】本発明では、分岐管継手１を本管２に融着
接合するにあたり、まず本管２の外壁適所に接続孔２１
を穿設する。このとき、本管２の外壁適所に枝管の取り
出し位置を正確に罫書き、図示しない穿孔ドリルを用い
て接続孔２１を穿設する。次に、加熱板３を用いて、分
岐管継手１と本管２との接合面とを同時に加熱溶融す
る。
【０００９】前記加熱板３はヒータ本体３０と上型３１
と下型３２とからなり、ヒータ本体３０の上面に分岐管
継手１を加熱する上型３１が設けられており、その下面
に本管２を加熱する下型３２が設けられている。上型３
１にはサドル１１の裏面と等しい曲率を有する凸状湾曲
面３１１と、サドル１１の裏面から突出した円筒体１３
の外周面と密着嵌合する凹部３１２とが設けられてい
る。また、下型３２には本管２の外壁面と等しい曲率を
有する凹状湾曲面３２１と、サドル１１の裏面から突出
した円筒体１３の外周面とほぼ同径の突起部３２とが設
けられている。
【００１０】図２に示した如く、加熱工程では、分岐管
継手１のサドル１１の裏面と本管２の外壁面との間に加
熱板３を介在させ、ヒータ本体３０を発熱させて分岐管
継手１のサドル１１の裏面と円筒体１３の外周面、及び
本管２に穿設した接続孔２１の周壁面とその周縁外壁面
とを同時に溶融させる。そこで、分岐管継手１を加熱板
３から引き離すと共に、加熱板３を本管２から引き離し
てから素早く分岐管継手１の円筒体１３を本管２の接続
孔２１に嵌挿し、サドル１１の裏面を本管２の外壁面に
押し付ける。すると、円筒体１３の外周面が接続孔２１
の周壁面に融着すると共に、サドル１１の裏面が接続孔
２１の周縁外壁面と融着し、分岐管継手１と本管２とが
強固に接合する。
【００１１】
【発明の効果】以上詳述した如く、本発明によれば本管
の正確な位置に分岐管継手を確実かつ強固に融着接合す
ることができる。即ち、本発明では分岐管継手を本管に
接合する前に本管の管壁に接続孔を穿設するので、枝管
の取り出し位置にあった正確な位置に接続孔を穿設する
ことができる。また、本発明では分岐管継手を本管に接
合する際に、サドルの裏面から突出した円筒部を接続孔
に嵌挿するので、融着作業の途中で分岐管継手が位置ず
れすることもない。しかも、円筒部の外周面が接続孔の
周壁面に融着すると共に、サドルの裏面が接続孔の周縁
外壁面に融着するため、従来継手と比較して２倍の融着
強度が得られる。
【図面の簡単な説明】
【図１】図１は本発明の一実施例を示す展開状態の断面
図である。
【図２】図２は本発明の加熱工程を示す断面図である。
【図３】図３は分岐管継手を本管に融着接合した状態を
示す断面図である。
【図４】図４は分岐管継手を本管に融着接合した状態の
従来例を示す断面図である。
【符号の説明】
１ 分岐管継手 １１ サドル １２ 分岐管 １３ 円筒部 ２ 本管 ２１ 接続孔 ３ 加熱板

Claims (1)

    【特許請求の範囲】
  1. 【請求項１】 略半円弧状に湾曲したサドルの上面から
    分岐管が一体的に突出すると共に、サドルの裏面に円筒
    体が一体的に突出した合成樹脂製分岐管継手を合成樹脂
    製本管の外壁面に融着接合するにあたり、次の各工程か
    らなることを特徴とする分岐管継手の融着方法。 本管の管壁適所に分岐管継手のサドル裏面から突出し
    た円筒体の外径より若干小径の接続孔を穿設すること、 分岐管継手のサドルの裏面と円筒体の外周面、及び本
    管に穿設した接続孔の周壁面とその周縁外壁面に加熱板
    を当てがって同時に溶融させること、 分岐管継手の裏面から突出した円筒体を本管に穿設し
    た接続孔に嵌挿し、円筒体の外周面を接続孔の周壁面に
    融着すると共に、サドルの裏面を接続孔の周縁外壁面に
    押し付けて融着すること、
JP9282430A 1997-10-16 1997-10-16 分岐管継手の融着方法 Pending JPH11118084A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9282430A JPH11118084A (ja) 1997-10-16 1997-10-16 分岐管継手の融着方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9282430A JPH11118084A (ja) 1997-10-16 1997-10-16 分岐管継手の融着方法

Publications (1)

Publication Number Publication Date
JPH11118084A true JPH11118084A (ja) 1999-04-30

Family

ID=17652319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9282430A Pending JPH11118084A (ja) 1997-10-16 1997-10-16 分岐管継手の融着方法

Country Status (1)

Country Link
JP (1) JPH11118084A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007247869A (ja) * 2006-03-17 2007-09-27 Solar Giken:Kk 樹脂管の熱融着接合方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007247869A (ja) * 2006-03-17 2007-09-27 Solar Giken:Kk 樹脂管の熱融着接合方法

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