JPS61294291A - Method of joining branch pipe to fluid transport pipe - Google Patents

Method of joining branch pipe to fluid transport pipe

Info

Publication number
JPS61294291A
JPS61294291A JP61053951A JP5395186A JPS61294291A JP S61294291 A JPS61294291 A JP S61294291A JP 61053951 A JP61053951 A JP 61053951A JP 5395186 A JP5395186 A JP 5395186A JP S61294291 A JPS61294291 A JP S61294291A
Authority
JP
Japan
Prior art keywords
branch pipe
heating wire
fluid transport
pipe
joining
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.)
Granted
Application number
JP61053951A
Other languages
Japanese (ja)
Other versions
JPH0314115B2 (en
Inventor
浜本　潔
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.)
Yano Giken Co Ltd
Original Assignee
Yano Giken Co Ltd
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 Yano Giken Co Ltd filed Critical Yano Giken Co Ltd
Priority to JP61053951A priority Critical patent/JPS61294291A/en
Publication of JPS61294291A publication Critical patent/JPS61294291A/en
Publication of JPH0314115B2 publication Critical patent/JPH0314115B2/ja
Granted 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
    • B29C66/80—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
    • B29C66/8145—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81457—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/63—Internally supporting the article during joining
    • 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
    • B29C66/8145—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81455—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic pressure
    • 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
    • B29C66/70—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
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は、水道水やガスなどの流体輸送管の途中に分岐
管を接合する技術のうち、殊に、接着剤による接合が技
術的に困難１．或いは、実施不能なポリエチレン樹脂製
流体輸送管に分岐管を熱溶着手段にて一体的に接合する
場合に好適な技術で、詳しくは、熱可塑性樹脂製流体輸
送管に形成した孔内に挿通される熱可塑性樹脂製分岐管
の接合端部外面にコイル状に捲回され、かつ、前記孔内
への挿通状態での通電により、前記接合端部外面および
前記孔内面を同時に加熱軟化させて両者を一体に溶着接
合させるだめの加熱用電熱線に関する。DETAILED DESCRIPTION OF THE INVENTION Among the techniques for joining branch pipes in the middle of fluid transport pipes for tap water, gas, etc., the present invention is particularly applicable to the following techniques:1. Alternatively, this technique is suitable for integrally joining a branch pipe to a fluid transport pipe made of polyethylene resin, which cannot be carried out, by heat welding means. It is wound in a coil shape around the outer surface of the joint end of a thermoplastic resin branch pipe, and when the current is passed through the hole, the outer surface of the joint end and the inner surface of the hole are simultaneously heated and softened. This invention relates to a heating wire for welding and joining together.

上記のような溶着接合手段は、本出願人らが先に提示し
たものであり、これによれば、分岐管の接合端部を流体
輸送管に形成した孔に差込んで両者を予め、最終の接合
姿勢に仮保持させた状態での通電によシ両者接合面を同
時に加熱することができるから、同じ溶着接合手段であ
っても、分岐管の接合端部外面と孔内面又は管外周面と
を別々の器具で加熱し、その加熱器具を轍去したのち、
両論熱面を圧接して溶着する場合に比べて作業工程が少
ない上に、加熱、圧接に高度なタイミングを必要とせず
、確実かつ均一な溶着力を得易くて、所期の接合を能率
的、安定的に行なえる利点を有する。　反面この種、溶
着接合手段によると、前記加熱用電熱線が接合部分に埋
め殺しされるものであるから、接合を確実、かつ、高強
度のものにして仕上りの良い接合効果を得るためには、
これを接合端部に位置ずれなどしないように、かつ、溶
着接合後においてその接合部肉厚内に埋入位置するよう
に、確実な位置固定状態に捲回保持させる要がある。The above-mentioned welding and joining means was previously proposed by the present applicants, and according to this, the joining end of the branch pipe is inserted into a hole formed in the fluid transport pipe, and both are connected in advance to the final stage. Since both joint surfaces can be heated simultaneously by applying electricity while temporarily held in the joining position, even if the same welding method is used, the outer surface of the joint end of the branch pipe and the inner surface of the hole or the outer circumferential surface of the pipe can be heated simultaneously. After heating the and with separate equipment and removing the heating equipment,
On both sides, there are fewer work steps compared to welding by pressure welding hot surfaces, and there is no need for sophisticated timing for heating and pressure welding, making it easy to obtain reliable and uniform welding force, making the desired welding more efficient. , which has the advantage of being stable. On the other hand, according to this kind of welding joining means, the heating wire is buried in the joining part, so in order to make the joining reliable and strong, and to obtain a good joining effect, it is necessary to ,
It is necessary to wind and maintain this in a securely fixed position so as not to shift the position at the joint end and to embed it within the thickness of the joint after welding and joining.

本発明は、上記した諸効果を有する溶着接合手段を実施
する場合において要求される電熱線の位置固定を確実、
容易に行なえるようにせんとする点に目的を有する。The present invention reliably fixes the position of the heating wire, which is required when implementing the welding and joining means having the various effects described above.
The purpose is to make it easy to perform.

本発狙による流体輸送管への熱溶着分岐管加熱用電熱線
は、前記分岐管の接合端部外面に、自由状態においてそ
の内径が前記分岐管の外径よりもやや小であるべくその
弾性力に抗してコイル状に捲回させである事を特徴とす
る。The heating wire for heating a branch pipe that is thermally welded to a fluid transport pipe according to the present invention is designed to have elastic properties such that its inner diameter is slightly smaller than the outer diameter of the branch pipe in a free state on the outer surface of the joint end of the branch pipe. It is characterized by being wound into a coil shape against force.

即ち、自由状態において分岐管の接合端部外径よりもや
や小径の電熱線を、それの弾性力に抗してコイル状に捲
回させることによって、その弾性縮径力をもって、この
電熱線を所要位置に確実に固定保持できるばかりでなく
、前記流体輸送管の孔に挿通させる前に、予め、通電し
てその捲回外面部分を加熱軟化させることによって前記
弾性縮径力を利用して、この電熱線を分岐管外面に喰い
込ませて、位置固定の確実化とともに、電熱線の捲回に
拘わらず分岐管接合端部の実質的な外径を、電熱線を捲
回していないものの外径と等しい又はほぼ等しいものに
することができる。　そのため、前記孔内径を電熱線相
当分だけ大きくする要がなく、分岐管の接合端部を挿通
できる範囲で可及的に小径のものにし乍ら、それの挿通
時にコイル状電熱線が位置ずれするおそれがなく、従っ
て、挿通状態での通電に伴ない必要箇所を確実、迅速に
加熱軟化させて確実かつ強力な溶着接合が行なえるとと
もに、電熱線を接合部肉厚内に埋入位置させて、仕上り
の良い接合効果が得られるに至った。That is, by winding a heating wire with a diameter slightly smaller than the outer diameter of the joint end of the branch pipe in a free state into a coil shape against its elastic force, the heating wire is Not only can it be reliably fixed and held at a desired position, but also the elastic diameter reducing force can be utilized by applying electricity in advance to heat and soften the wound outer surface portion before inserting it into the hole of the fluid transport pipe. This heating wire is bitten into the outer surface of the branch pipe to ensure its fixed position, and the substantial outer diameter of the joint end of the branch pipe is adjusted to the outer diameter of the branch pipe joint end regardless of the winding of the heating wire. It can be made equal or approximately equal to the diameter. Therefore, there is no need to increase the inner diameter of the hole by the amount equivalent to the heating wire, and while the diameter of the hole is made as small as possible within a range that allows the joint end of the branch pipe to be inserted, the position of the coiled heating wire will not shift when it is inserted. Therefore, when electricity is applied in the inserted state, the necessary parts are reliably and quickly heated and softened, and a reliable and strong welding joint can be performed, and the heating wire can be embedded and positioned within the thickness of the joint part. As a result, we were able to obtain a bonding effect with a good finish.

先ず、本発明による溶着接合要領を説明し、次に、その
接合に用いる加熱用電熱線について詳述する。First, the method of welding and joining according to the present invention will be explained, and then the heating wire used for the joining will be explained in detail.

第１図で示すようなポリエチレン樹脂製の流体輸送管＋
１＋の分岐必要箇所に、分岐管（２）の外径と等しい又
はそれよりもやや大径の孔（１Ａ）を貫通形成するとと
もに、前記分岐管（２）の接合端部（２人）外面に、予
め、加熱用抵抗線など通電により加熱昇温される加熱用
電熱線（３）を、裸のままでかつその両端ターミナル部
（３Ａ）　、　（３Ａ）を上方に突出位置させる状態で
コイル状に密着捲回させておく。　そして、この加熱用
電熱線（３）捲回の接合端部（２人）を、第１図の如く
前記孔（１Ａ）内に挿通させた状態でターミナル部（３
Ａ）、（３Ａ）　を通じて加熱用電熱線（３）に通電す
ることにより、前記接合端部（２人）外面および孔（１
Ａ）内面を同時に加熱溶解（約／ｆＯ’ｃ）して軟化さ
せる。Fluid transport pipe made of polyethylene resin as shown in Figure 1 +
A hole (1A) with a diameter equal to or slightly larger than the outer diameter of the branch pipe (2) is formed through the branch pipe (2) at the required branch location, and the outer surface of the joint end (2 people) of the branch pipe (2) is formed. In advance, a heating wire (3), such as a heating resistance wire, which is heated and heated by energization, is coiled with its terminal parts (3A) and (3A) protruding upward. Roll it tightly into a shape. Then, the terminal part (3) is inserted into the hole (1A) as shown in Fig. 1, with the joint end (2 people) of the coiled heating wire (3) inserted into the hole (1A) as shown in Fig.
A), (3A) By energizing the heating wire (3) through
A) At the same time, the inner surface is heated and melted (approximately /fO'c) to soften it.

しかるのち、第２図の如く、前記分岐管（２）内を通し
て流体輸送管＋１）内に挿通位置させる、或いは、予め
挿通位置させである、弾性部材（６）を操作具（７）を
介して圧縮拡大させて、軟化した分岐管（２）の接合端
部（２人）を拡径することによって、その拡径部分を孔
（１Ａ）内面に圧接させて一体に、溶着接合させるので
ある。Thereafter, as shown in FIG. 2, the elastic member (6), which has been inserted into the fluid transport pipe +1) through the branch pipe (2), is inserted into the fluid transport pipe +1), or the elastic member (6), which has been previously inserted into the fluid transport pipe +1, is inserted into the fluid transport pipe By compressing and expanding the softened branch pipe (2), the joining end (2 people) is expanded in diameter, and the expanded diameter part is pressed against the inner surface of the hole (1A) and welded and joined together. .

上記の溶着接合に用いる前記加熱用電熱線（３）を分岐
管（２）の接合端部（２人）外面に次のように捲回させ
る。The heating wire (3) used for the welding and joining described above is wound around the outer surface of the joint end (two people) of the branch pipe (2) as follows.

第３図で示すように女性用の毛髪ピン状に折曲げ形成し
たものを、前記分岐管（２）の接合端部（２人）外面に
、自由状態においてはその内径が前記分岐管（２）の外
径よりもやや小であるべくその弾、性力に抗して第４図
の如くコイル状に捲回させ、そして、前記孔（ＬＡ）内
に挿通させる前に、ターミナル部（３Ａ）、（３Ａ）を
通じて通電させることにより、前記接合端部（２Ａ）外
′面を加熱軟化させて、弾性縮径力にて第５図、第６図
で示すように分岐管（２）の肉厚内に喰い込ませた状態
に位置固定させておく。As shown in Fig. 3, a hair pin for women bent and formed is attached to the outer surface of the joint end (2 people) of the branch pipe (2), so that in the free state, the inner diameter of the hair pin is the same as that of the branch pipe (2). ) is wound into a coil shape as shown in Fig. 4 against its elastic force, and the terminal part (3A ), (3A), the outer surface of the joint end (2A) is heated and softened, and the branch pipe (2) is tightened by elastic diameter reduction force as shown in FIGS. 5 and 6. Fix the position by biting into the wall thickness.

その後、既述の要領で溶着接合することにより、第２図
で示すように、電熱線（３）が接合部肉厚内に埋入され
た状態の接合が得られるのである。Thereafter, by welding and joining in the manner described above, a joint is obtained in which the heating wire (3) is embedded within the thickness of the joint, as shown in FIG.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明に係る流体輸送管への＋ｄｉｒｌＦｆ）令
禦亀卸琳手弗囃の実施の態様を例示し、第１図、第２図
は分岐管の熱溶着要領を示す要部の縦断面図、第３図は
加熱用電熱線の素材を示す拡大側面図、第４図は加熱用
電熱線の捲回状態を示す側面図、第５図は加熱用電熱線
の捲回状態での分岐管の拡大断面図、第６図は第５図の
要部拡大図である。 ｉｔ）・・・・・・流体輸送管、（２）・・・・・・分
岐管、（３）・・・・・・電熱線、（１Ａ）・・・・・
・孔、（２人）・・・・・・接合端部。The drawings illustrate an embodiment of the +dirlFf) Reiwa Kameori Rin Teputhuaku to the fluid transport pipe according to the present invention, and Figs. 1 and 2 are longitudinal cross sections of the main parts showing the procedure for heat welding of the branch pipe. Fig. 3 is an enlarged side view showing the material of the heating wire, Fig. 4 is a side view showing the state of winding of the heating wire, and Fig. 5 is a branch of the heating wire in the wound state. An enlarged sectional view of the tube, FIG. 6 is an enlarged view of the main part of FIG. 5. it)...Fluid transport pipe, (2)...Branch pipe, (3)...Heating wire, (1A)...
- Hole, (2 people)... Joint end.

Claims (1)

【特許請求の範囲】[Claims] 熱可塑性樹脂製流体輸送管（１）に形成した孔（１Ａ）
内に挿通される熱可塑性樹脂製分岐管（２）の接合端部
（２Ａ）外面に加熱用電熱線（３）をコイル状に捲回さ
せ、かつ、前記孔（１Ａ）内への挿通状態での通電によ
り、前記接合端部（２Ａ）外面および前記孔（１Ａ）内
面を同時に加熱軟化させて両者（１）、（２）を一体に
溶着接合させる流体輸送管への分岐管接合方法であつて
、前記分岐管（２）の接合端部（２Ａ）外面に、自由状
態においてその内径が前記分岐管（１）の外径よりもや
や小であるべくその弾性力に抗して前記加熱用電熱線（
３）をコイル状に捲回させた後、加熱用電線（３）に通
電する事を特徴とする流体輸送管への分岐管接合方法。Hole (1A) formed in thermoplastic resin fluid transport pipe (1)
A heating wire (3) is wound in a coil shape on the outer surface of the joint end (2A) of the thermoplastic resin branch pipe (2) to be inserted therein, and the heating wire (3) is inserted into the hole (1A). A method for joining a branch pipe to a fluid transport pipe, in which the outer surface of the joint end (2A) and the inner surface of the hole (1A) are simultaneously heated and softened by energization at the junction end (2A) and the inner surface of the hole (1A) is welded and joined together. The heating is applied to the outer surface of the joint end (2A) of the branch pipe (2) against its elastic force so that its inner diameter is slightly smaller than the outer diameter of the branch pipe (1) in a free state. heating wire (
A method for joining a branch pipe to a fluid transport pipe, which comprises winding the heating wire (3) into a coil and then energizing the heating wire (3).
JP61053951A 1986-03-12 1986-03-12 Method of joining branch pipe to fluid transport pipe Granted JPS61294291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61053951A JPS61294291A (en) 1986-03-12 1986-03-12 Method of joining branch pipe to fluid transport pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61053951A JPS61294291A (en) 1986-03-12 1986-03-12 Method of joining branch pipe to fluid transport pipe

Publications (2)

Publication Number Publication Date
JPS61294291A true JPS61294291A (en) 1986-12-25
JPH0314115B2 JPH0314115B2 (en) 1991-02-26

Family

ID=12957027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61053951A Granted JPS61294291A (en) 1986-03-12 1986-03-12 Method of joining branch pipe to fluid transport pipe

Country Status (1)

Country Link
JP (1) JPS61294291A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0211997A (en) * 1988-06-29 1990-01-17 Kubota Ltd Fusion joining structure and method thereof for thermosetting plastic pipe
JPH02190694A (en) * 1989-01-19 1990-07-26 Tokushu Kogyo Kk Connecting method for tube made of polymer material
JPH0337496A (en) * 1989-07-04 1991-02-18 Tokushu Kogyo Kk Sleeve for joint
JPH0325096U (en) * 1989-07-21 1991-03-14
GB2232330B (en) * 1989-05-01 1993-05-26 Central Plastics Co A method of connecting pipes
EP1195238A2 (en) * 2000-10-06 2002-04-10 Uponor Innovation Ab A method for manufacturing a well, and a well
WO2005105411A1 (en) * 2004-04-29 2005-11-10 Friatec Aktiengesellschaft Device for linking structural components produced on the basis of fusible plastic

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0211997A (en) * 1988-06-29 1990-01-17 Kubota Ltd Fusion joining structure and method thereof for thermosetting plastic pipe
JPH02190694A (en) * 1989-01-19 1990-07-26 Tokushu Kogyo Kk Connecting method for tube made of polymer material
GB2232330B (en) * 1989-05-01 1993-05-26 Central Plastics Co A method of connecting pipes
JPH0337496A (en) * 1989-07-04 1991-02-18 Tokushu Kogyo Kk Sleeve for joint
JPH0325096U (en) * 1989-07-21 1991-03-14
EP1195238A2 (en) * 2000-10-06 2002-04-10 Uponor Innovation Ab A method for manufacturing a well, and a well
EP1195238A3 (en) * 2000-10-06 2002-09-18 Uponor Innovation Ab A method for manufacturing a well, and a well
WO2005105411A1 (en) * 2004-04-29 2005-11-10 Friatec Aktiengesellschaft Device for linking structural components produced on the basis of fusible plastic

Also Published As

Publication number Publication date
JPH0314115B2 (en) 1991-02-26

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