JP2001050468A - Fusion joint - Google Patents

Fusion joint

Info

Publication number
JP2001050468A
JP2001050468A JP22410999A JP22410999A JP2001050468A JP 2001050468 A JP2001050468 A JP 2001050468A JP 22410999 A JP22410999 A JP 22410999A JP 22410999 A JP22410999 A JP 22410999A JP 2001050468 A JP2001050468 A JP 2001050468A
Authority
JP
Japan
Prior art keywords
branch
service tee
joint
fused
main 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
Application number
JP22410999A
Other languages
Japanese (ja)
Inventor
Kenichiro Kojima
賢一郎 小島
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP22410999A priority Critical patent/JP2001050468A/en
Publication of JP2001050468A publication Critical patent/JP2001050468A/en
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
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52298—Joining tubular articles involving the use of a socket said socket being composed by several elements
    • 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
    • B29C65/3432—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 comprising several wires, e.g. in the form of several independent 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
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5225—Joining tubular articles for forming cross-shaped connections, e.g. for making X-shaped pieces
    • B29C66/52251—Joining tubular articles for forming cross-shaped connections, e.g. for making X-shaped pieces with four right angles, e.g. for making +-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—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
    • 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)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To perform a plurality of branch operations from one service tee, and freely select the branch direction according to a condition of an execution field by arranging a receiving port in which a resistance heating wire is disposed on an inner circumferential surface side of one end part of a joint main body, and arranging a plurality of branch connecting parts on the other end part. SOLUTION: A lower surface of a saddle part 31 of a service tee 3 abuts on a prescribed position of an outer peripheral surface of a main pipe 2, and is fixed thereto. Current is carried to a nichrome wire arranged on a lower surface side of the saddle part 31 through both terminals 311, and the saddle part 31 is fused with the main pipe 2. A spigot 34 protruded to a side of a barrel part 32 disposed upward from the saddle part 31 is fused with a receiving port 12. Both branch connecting part 15 positioned on upper and lower parts is fused with a branch pipe. At this time, the connecting direction of each elbow for 90 degrees is changed, and thereby, branch directions of both branch pipes are optionally changed. The fusion joint 1 is assembled with the service tee 3, and thereby, two branch piping operations are carried out from one service tee 3.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は溶着継手に関する。The present invention relates to a welded joint.

【０００２】[0002]

【従来の技術】本管より分岐管の分岐配管を行うための
サービスチータイプの溶着継手として、サドル部より上
方に突設した胴部より側方にスピゴットが突設されたも
のが知られている。なお、サドル部の本管と当接する下
面側にはニクロム線などの加熱抵抗線が埋設されてい
る。2. Description of the Related Art A service tee type welded joint for branching a branch pipe from a main pipe is known in which a spigot is protruded laterally from a body part protruded above a saddle part. I have. Note that a heating resistance wire such as a nichrome wire is buried on the lower surface side of the saddle portion in contact with the main pipe.

【０００３】そして、スピゴットの突設方向としては、
本管の軸心方向に対して直交するものと、平行になるも
のとの２方向がある。たとえば特開昭６１−１６８３８
号公報にて本管と直交するタイプのものが、また、実用
新案登録第３０１８９６１号公報にて本管と平行になる
タイプのものが開示されている。[0003] The direction in which the spigot is projected is as follows.
There are two directions, one perpendicular to the axial direction of the main pipe and the other parallel. For example, JP-A-61-16838
In Japanese Patent Application Laid-Open No. H10-204, a type perpendicular to the main pipe is disclosed, and in Japanese Utility Model Registration No. 3018961, a type parallel to the main pipe is disclosed.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、上記従
来のサービスチーの場合は、スピゴットが胴部より１方
向にしか突設されていないため、一箇所から複数の分岐
を行うことができなかった。また、分岐位置が近接して
いる場合、あるいは分岐配管を行う施工現場の状況によ
っては、分岐方向を変えることができないという問題が
あった。However, in the case of the above-mentioned conventional service tee, since the spigot protrudes from the body only in one direction, a plurality of branches cannot be made from one location. In addition, there is a problem that the branch direction cannot be changed when the branch positions are close to each other or depending on the condition of the construction site where the branch piping is performed.

【０００５】本発明の目的は、従来のサービスチーと組
み合わせることで、一つのサービスチーから複数の分岐
を行えるとともに、施工現場の状況に応じて、分岐方向
を自由に選択することができる溶着継手を提供すること
である。An object of the present invention is to combine a conventional service tee with a plurality of branches from one service tee and to freely select a branch direction according to the situation at the construction site. It is to provide.

【０００６】[0006]

【課題を解決するための手段】請求項１記載の発明は、
継手本体の一端部にその内周面側に抵抗加熱線が配設さ
れた受け口が設けられ、他端部に複数の分岐接続部が設
けられている溶着継手である。According to the first aspect of the present invention,
This is a welded joint in which a receptacle in which a resistance heating wire is provided on one inner end side of a joint main body is provided, and a plurality of branch connection portions are provided on the other end.

【０００７】（作用）請求項１記載の発明の溶着継手に
おいては、継手本体の他端部に複数の分岐接続部が設け
られているので、たとえば継手本体の一端部の受け口
を、本管外面にサドルを溶着したサービスチーのスピゴ
ットと溶着させることで、一箇所から複数の分岐配管を
行うことができる。(Function) In the welded joint according to the first aspect of the present invention, since a plurality of branch connection portions are provided at the other end of the joint main body, for example, the receptacle at one end of the joint main body is connected to the outer surface of the main pipe. A plurality of branch pipes can be formed from a single location by welding the saddle to a service tee spigot.

【０００８】また、各種形態の分岐接続部を有する継手
本体を品揃えしておくことで、施工現場の状況に応じて
対応することができる。In addition, by preparing a variety of joint bodies having various types of branch connection portions, it is possible to cope with the situation at the construction site.

【０００９】[0009]

【発明の実施の形態】以下、本発明の実施の形態を図面
により説明する。図１は本発明の溶着継手の一例を使用
状態とともに示す一部切欠き正面図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway front view showing an example of a welded joint of the present invention together with a use state.

【００１０】図において、溶着継手１はポリエチレン樹
脂から射出成型されてなるものであり、継手本体１１の
一端部にその内周面側にニクロム線１３が螺旋状に埋設
された受け口１２が設けられ、他端部に２個の分岐接続
部１５が設けられている。ニクロム線１３の両端は端子
１４，１４と電気的に接続されている。分岐接続部１５
は差し口とされ、その口径は受け口１２の口径の約１／
４とされている。In the drawing, a welded joint 1 is formed by injection molding from a polyethylene resin, and a joint body 11 is provided at one end thereof with a receptacle 12 in which a nichrome wire 13 is helically embedded on the inner peripheral surface thereof. , Two branch connection portions 15 are provided at the other end. Both ends of the nichrome wire 13 are electrically connected to the terminals 14, 14. Branch connection 15
Is an inlet, the diameter of which is about 1 / the diameter of the port 12
It is set to 4.

【００１１】つぎに、上記溶着継手１の使用態様を説明
する。まず、本管２の外周面の所定位置にサービスチー
３のサドル部３１の下面を当接し、所定の治具（図示せ
ず）を用いて固定する。そして、サドル部３１の下面側
に埋設されているニクロム線（図示せず）に両端子３１
１を通じて通電し、ニクロム線を加熱してサドル部３１
を本管２と溶着する。なお、本管２およびサービスチー
３はともにポリエチレン樹脂製のものである。Next, the manner of use of the welded joint 1 will be described. First, the lower surface of the saddle portion 31 of the service tee 3 is brought into contact with a predetermined position on the outer peripheral surface of the main pipe 2 and fixed using a predetermined jig (not shown). Then, both terminals 31 are connected to a nichrome wire (not shown) embedded on the lower surface side of the saddle portion 31.
1 to heat the nichrome wire and
Is welded to the main pipe 2. The main pipe 2 and the service tee 3 are both made of polyethylene resin.

【００１２】つぎに、サドル部３１より上方に突設した
胴部３２の側方に突設したスピゴット３４に、溶着継手
１の受け口１２を挿入し、両端子１４を通じて通電し、
ニクロム線１３を加熱して受け口１２をスピゴット３４
と溶着する。そして、上下に位置する両分岐接続部１５
をたとえば９０度エルボ（図示せず）を介して、分岐管
４，４と溶着する。その際、両９０度エルボの接続方向
を変えることによって、両分岐管４の分岐方向を任意に
変更することができる。Next, the receptacle 12 of the welded joint 1 is inserted into a spigot 34 projecting from the body 32 projecting above the saddle portion 31, and electricity is supplied through both terminals 14.
The nichrome wire 13 is heated to make the spigot 34
And weld. Then, the two branch connection portions 15 located above and below
Is welded to the branch pipes 4 and 4 via, for example, a 90-degree elbow (not shown). At this time, by changing the connection direction of the two 90-degree elbows, the branch direction of the two branch pipes 4 can be arbitrarily changed.

【００１３】このように、溶着継手１をサービスチー３
と組み合わせて用いることで、一つのサービスチー３か
ら２個の分岐配管を行うことができ、経済的である。As described above, the welding joint 1 is
By using in combination with the above, two branch pipes can be formed from one service tee 3, which is economical.

【００１４】上記実施例では、継手本体１１の他端部
に、分岐接続部１５，１５をその軸心が継手本体１１の
軸心と同一方向に平行になるように設けたが、２個の分
岐接続部１５が互いに斜め方向に分岐するようにしたも
のとしてもよい。In the above embodiment, the branch connection portions 15, 15 are provided at the other end of the joint body 11 so that their axes are parallel to the axis of the joint body 11 in the same direction. The branch connecting portions 15 may be configured to branch obliquely from each other.

【００１５】また、図２に示すように、継手本体１１Ａ
をその他端が閉塞されたものとし、継手本体１１Ａの他
端部の壁部から２個の分岐接続部１５Ａ，１５Ａが同一
方向に突設されたものとしてもよい。Also, as shown in FIG.
May be closed at the other end, and two branch connection portions 15A, 15A may be provided to project in the same direction from the wall at the other end of the joint body 11A.

【００１６】さらに、図２において、両分岐接続部１５
Ａ，１５Ａが互いに反対方向に突設するようにしてもよ
く、あるいは両分岐接続部１５Ａ，１５Ａのなす角度が
９０度となるように突設してもよい。また、分岐接続部
１５Ａの数を３個以上としてもよい。Further, referring to FIG.
A and 15A may project from each other in the opposite direction, or they may project from each other so that the angle formed by the two branch connecting portions 15A and 15A becomes 90 degrees. Further, the number of the branch connection portions 15A may be three or more.

【００１７】[0017]

【発明の効果】請求項１記載の発明においては、たとえ
ば継手本体の一端部の受け口を、サービスチーのスピゴ
ットと溶着接続することで、一つのサービスチーにて複
数の分岐配管を行うことができる。また、各種形態の分
岐接続部を有する継手本体を品揃えしておくことで、施
工現場の状況に応じて対応することができる。According to the first aspect of the present invention, a plurality of branch pipes can be formed by one service tee by, for example, welding and connecting the receptacle at one end of the joint body to a spigot of the service tee. . In addition, by preparing a variety of joint bodies having various types of branch connection portions, it is possible to cope with the situation at the construction site.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の溶着継手の一例を使用状態とともに示
す一部切欠き正面図である。FIG. 1 is a partially cutaway front view showing an example of a welded joint of the present invention together with a use state.

【図２】本発明の溶着継手の変形例を示す断面図であ
る。FIG. 2 is a sectional view showing a modified example of the welded joint of the present invention.

【符号の説明】 １，１Ａ 溶着継手 １１，１１Ａ 継手本体 １２ 受け口 １５ 分岐接続部 ３ サービスチー[Description of Signs] 1,1A Welded Joint 11, 11A Joint Body 12 Receptacle 15 Branch Connection 3 Service Chee

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】継手本体の一端部にその内周面側に抵抗加
熱線が配設された受け口が設けられ、他端部に複数の分
岐接続部が設けられていることを特徴とする溶着継手。1. A welding method comprising: a joint body having an end provided with a receiving port provided with a resistance heating wire on an inner peripheral surface thereof, and a plurality of branch connections provided at the other end; Fittings.
JP22410999A 1999-08-06 1999-08-06 Fusion joint Pending JP2001050468A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22410999A JP2001050468A (en) 1999-08-06 1999-08-06 Fusion joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22410999A JP2001050468A (en) 1999-08-06 1999-08-06 Fusion joint

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