JPH06147388A - Fusing/connecting method for pipe coupling - Google Patents

Fusing/connecting method for pipe coupling

Info

Publication number
JPH06147388A
JPH06147388A JP4301009A JP30100992A JPH06147388A JP H06147388 A JPH06147388 A JP H06147388A JP 4301009 A JP4301009 A JP 4301009A JP 30100992 A JP30100992 A JP 30100992A JP H06147388 A JPH06147388 A JP H06147388A
Authority
JP
Japan
Prior art keywords
pipe
pipe joint
peripheral surface
bead
fusion
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
JP4301009A
Other languages
Japanese (ja)
Inventor
Shingo Nishikawa
真午 西川
Kenji Mizukawa
賢司 水川
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 JP4301009A priority Critical patent/JPH06147388A/en
Publication of JPH06147388A publication Critical patent/JPH06147388A/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
    • B29C66/5221—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
    • B29C65/18—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
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02241—Cutting, e.g. by using waterjets, or sawing
    • 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
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • B29C66/12821—Stepped joint cross-sections comprising at least one overlap joint-segment comprising at least two overlap joint-segments
    • 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
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments
    • 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
    • B29C66/53—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
    • B29C66/50—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
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/326—Shaping the burr, e.g. by the joining tool
    • B29C66/3262—Shaping the burr, e.g. by the joining tool as after-treatment, e.g. by a separate tool

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

PURPOSE:To provide the fusing/connecting method of a pipe coupling generating no step in a pipe and not impairing the outer appearance by molding and processing the generated beads in space sections, not preventing the generation of the beads. CONSTITUTION:The inner periphery 11 of a pipe coupling 1 and the outer periphery 21 of a pipe 2 to be inserted into the inner periphery 11 are heated, then the pipe 2 is inserted into the pipe coupling 1 to socket-fuse and connect the inner periphery 11 of the pipe coupling 1 and the outer periphery 21 of the pipe 2, and space sections 10, 20 are recessed on the pipe coupling 1 where beads 4 are generated in the fused and connected state or at the portion of the pipe 2 where beams 4 are generated before the fusion/connection in advance so that beads are generated in the space sections 10, 20 at the time of fusion/ connection.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、管継手と管とのソケッ
ト接続による融着接合方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fusion splicing method by socket connection between a pipe joint and a pipe.

【０００２】[0002]

【従来の技術】一般に、管継手の内周面と、この内周面
に挿入される管の外周面とを加熱した後、この管継手に
管を挿入して管継手の内周面と管の外周面とをソケット
融着接合する方法が知られている。また、このようにし
て融着接合すると、管継手および管の端部に、それぞれ
ビードと呼ばれる溶融樹脂のはみ出しを生じることとな
る。2. Description of the Related Art Generally, after heating an inner peripheral surface of a pipe joint and an outer peripheral surface of a pipe to be inserted into the inner peripheral surface, the pipe is inserted into the pipe joint to form an inner peripheral surface of the pipe joint and a pipe. A method of fusion-bonding the outer peripheral surface of the socket with the socket is known. In addition, when fusion-bonding is performed in this manner, protrusions of molten resin called beads are generated at the ends of the pipe joint and the pipe.

【０００３】そこで、従来より、このような融着接合時
に発生するビードを処理する方法として、例えば、特開
昭５７−１４６９８９号公報に示す方法が知られてい
る。すなわち、管継手の受口内面を長手方向に交互に凹
凸とし、この受口内面を加熱軟化することにより、接合
部内におけるリング状のビードの発生を防止するもので
ある。Therefore, conventionally, as a method of treating a bead generated during such fusion bonding, for example, a method disclosed in JP-A-57-146989 is known. That is, the inner surface of the receiving opening of the pipe joint is alternately made to be uneven in the longitudinal direction, and the inner surface of the receiving opening is softened by heating to prevent the generation of a ring-shaped bead in the joint portion.

【０００４】[0004]

【発明が解決しようとする課題】しかし、上記従来の融
着接合方法の場合、凹凸部分に吸収されて溶融樹脂のは
み出し量が減量されるものの、完全にビードの発生を無
くすことができず、多少なりともビードが発生すること
となる。そのため、図９に示すように、このように融着
接合した管継手ａの他端側に管ｂを接続して管路を構成
すると、このビードｃの部分に段差を生じることとな
り、ゴミやスケールが付着しやすくなるといった不都合
を生じることとなる。また、融着接合した管ｂの外面に
もビードｃを生じることとなり、製品の外観上好ましく
ない。However, in the case of the above-mentioned conventional fusion bonding method, although the protrusion amount of the molten resin is reduced by being absorbed in the uneven portion, the generation of beads cannot be completely eliminated, Beads will be generated to some extent. Therefore, as shown in FIG. 9, when a pipe b is formed by connecting the pipe b to the other end of the pipe joint a fusion-bonded in this way, a step is generated at the bead c portion, and dust or dirt is generated. This causes an inconvenience that scales are easily attached. Further, beads c are also generated on the outer surface of the fusion-bonded tube b, which is not preferable in terms of the appearance of the product.

【０００５】本発明は、係る実情に鑑みてなされたもの
で、ビードの発生を防止するのではなく、発生したビー
ドを空間部で成形処理することによって、管路内の段差
を生じることなく、かつ、外観も損なわない管継手の融
着接合方法を提供することを目的としている。The present invention has been made in view of the above situation, and does not prevent the generation of beads, but forms the generated beads in the space portion, so that there is no step in the pipe line. Moreover, it is an object of the present invention to provide a fusion bonding method for pipe joints that does not impair the appearance.

【０００６】[0006]

【課題を解決するための手段】上記課題を解決するため
の本発明の管継手の融着接合方法は、管継手の内周面
と、この内周面に挿入される管の外周面とを加熱した
後、この管継手に管を挿入して管継手の内周面と管の外
周面とをソケット融着接合する方法であって、融着接合
状態でビードが発生することとなる管継手およびまたは
管のビード発生部分に、あらかじめ融着接合前に空間部
を凹設しておく、およびまたは治具を設けることによっ
て空間部を形成しておき、融着接合時のビードをこの空
間部に生じさせるものである。A fusion bonding method for a pipe joint according to the present invention for solving the above-mentioned problems includes an inner peripheral surface of the pipe joint and an outer peripheral surface of a pipe inserted into the inner peripheral surface. After heating, a pipe is inserted into this pipe joint to perform socket fusion bonding of the inner peripheral surface of the pipe joint and the outer peripheral surface of the pipe, and a bead will be generated in the fusion bonded state. And / or in the bead-generating portion of the pipe, a space is formed in advance before fusion bonding, and / or a space is formed by providing a jig. Is caused by.

【０００７】[0007]

【作用】本発明によると、融着接合状態でビードが発生
することとなる管継手およびまたは管のビード発生部分
に、あらかじめ融着接合前に空間部を凹設しておく、お
よびまたは治具を設けることによって空間部を形成して
おくことで、融着接合時に発生するビードがこの空間部
で固化することとなる。According to the present invention, a space is provided in advance in a bead-generating portion of a pipe joint and / or a pipe where a bead is generated in a fusion-bonded state before the fusion-bonding, and / or a jig. By forming the space portion by providing the above, the bead generated at the time of fusion bonding is solidified in this space portion.

【０００８】[0008]

【実施例】以下、本発明の一実施例を図面を参照して説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

【０００９】[0009]

【実施例１】図１は、管継手１の融着接合方法の各作業
工程を示している。[Embodiment 1] FIG. 1 shows each working step of a fusion bonding method for a pipe joint 1.

【００１０】すなわち、この融着接合方法は、管継手１
の内周面１１と、この内周面１１に挿入される管２の外
周面２１とをヒーター３で加熱した後、この管継手１に
管２を挿入して管継手１の内周面１１と管２の外周面２
１とをソケット融着接合する方法であって、融着接合状
態でビード４が発生することとなる管継手１およびまた
は管２の端部に、あらかじめ融着接合前に空間部１０、
２０を凹設しておき、融着接合時のビード４をこの空間
部１０、２０に生じさせるものである。That is, this fusion bonding method is applied to the pipe joint 1
The inner peripheral surface 11 of the pipe joint 1 and the outer peripheral surface 21 of the pipe 2 inserted into the inner peripheral surface 11 are heated by the heater 3, and then the pipe 2 is inserted into the pipe joint 1 to form the inner peripheral surface 11 of the pipe joint 1. And outer surface 2 of tube 2
1 is a method for fusion-bonding sockets 1 and 1, in which a bead 4 is generated in the fusion-bonded state, at the end of the pipe joint 1 and / or the pipe 2, a space portion 10 before fusion-bonding,
20 is recessed, and the bead 4 at the time of fusion bonding is generated in the space portions 10 and 20.

【００１１】管継手１は、その端部が、外周面１２側か
ら内周面１１側へと縮径するようにテーパ状に切削さ
れ、この切削された部分が空間部１０として形成されて
いる。この空間部１０は、融着時に管継手１の端部と管
２の外周面２１との間に発生するビード４を充分に収納
できるだけの容積となされている。この空間部１０の容
積は、管継手１および管２の寸法、ヒーター３の加熱温
度、加熱時間などによって決定される。The end portion of the pipe joint 1 is cut into a taper shape so that the diameter decreases from the outer peripheral surface 12 side to the inner peripheral surface 11 side, and the cut portion is formed as a space portion 10. . The space portion 10 has a volume sufficient to accommodate the bead 4 generated between the end portion of the pipe joint 1 and the outer peripheral surface 21 of the pipe 2 during fusion bonding. The volume of the space 10 is determined by the dimensions of the pipe joint 1 and the pipe 2, the heating temperature of the heater 3, the heating time, and the like.

【００１２】管２は、その端部が、外周面２１側から内
周面２２側へと先細り形状に切削され、この切削された
部分が空間部２０として形成されている。この空間部２
０は、融着時に、管２の端部と管継手１の内周面１１と
の間に発生するビード４を充分に収納できるだけの容積
となされている。この空間部２０の容積は、上記管継手
１の空間部１０と同様に、管継手１および管２の寸法、
ヒーター３の加熱温度、加熱時間などによて決定され
る。The end of the tube 2 is cut into a tapered shape from the outer peripheral surface 21 side to the inner peripheral surface 22 side, and the cut portion is formed as a space 20. This space 2
The volume of 0 is set so that the bead 4 generated between the end portion of the pipe 2 and the inner peripheral surface 11 of the pipe joint 1 during fusion bonding can be sufficiently accommodated. The volume of this space 20 is similar to that of the space 10 of the pipe joint 1, and the dimensions of the pipe joint 1 and the pipe 2,
It is determined by the heating temperature of the heater 3 and the heating time.

【００１３】なお、この管２の空間部２０の形状として
は、管２の端部と管継手１の内周面１１との間に発生す
るビード４を有効に収納できる形状であれば、特に限定
されるものではなく、例えば、図２に示すような各種形
状の空間部２０であってもよい。The shape of the space portion 20 of the pipe 2 is not particularly limited as long as the bead 4 generated between the end portion of the pipe 2 and the inner peripheral surface 11 of the pipe joint 1 can be effectively stored. The space portion 20 is not limited, and may be, for example, the space portion 20 having various shapes as shown in FIG.

【００１４】また、管継手１の空間部１０の形状も、管
継手１の端部と管２の外周面２１との間に発生するビー
ド４を有効に収納できる形状であれば、特に限定される
ものではなく、例えば、図３に示すような各種形状の空
間部１０であってもよい。また、同図（ａ）、（ｂ）に
示すように、管継手１の内周面１１に発生するビード４
の部分に、各種形状の凹溝１３を周設しておき、この凹
溝１３内で、管継手１の内周面１１に発生するビード４
を収納するようにしてもよい。この管継手１の場合、融
着に用いる管２は、空間部２０を有する管２であっても
よいし、空間部２０の無い通常の管２であってもよい。The shape of the space portion 10 of the pipe joint 1 is also particularly limited as long as the bead 4 generated between the end portion of the pipe joint 1 and the outer peripheral surface 21 of the pipe 2 can be accommodated effectively. However, the space 10 may have various shapes as shown in FIG. 3, for example. Further, as shown in FIGS. 1A and 1B, the bead 4 generated on the inner peripheral surface 11 of the pipe joint 1
A bead 4 generated on the inner peripheral surface 11 of the pipe joint 1 within the groove 13 is provided with a groove 13 of various shapes.
May be stored. In the case of this pipe joint 1, the pipe 2 used for fusion bonding may be the pipe 2 having the space portion 20 or may be the normal pipe 2 having no space portion 20.

【００１５】[0015]

【実施例２】本例を図４ないし図８に示す。Second Embodiment This example is shown in FIGS.

【００１６】すなわち、本例は、管継手１に、あらかじ
め融着接合前に治具５を設けることによって空間部５０
を形成するようにしたもので、その他の構成は上記実施
例１と同様であるので、ここではその相違点についての
み説明し、その他の説明は省略する。なお、実施例１と
同部材には同符号を付す。That is, in this example, the pipe joint 1 is provided with the jig 5 in advance before fusion bonding, so that the space 50 is formed.
Since the other configurations are the same as those in the first embodiment, only the differences will be described here, and the other description will be omitted. The same members as those in the first embodiment are designated by the same reference numerals.

【００１７】治具５は、管継手１の内周面１１および外
周面１２に設けられる。The jig 5 is provided on the inner peripheral surface 11 and the outer peripheral surface 12 of the pipe joint 1.

【００１８】このうち、内周面１１に設けられる治具５
は、その外方向に鍔部５１を有する円筒状に形成されて
おり、管継手１の内周面１１に挿入した状態で、鍔部５
１が管継手１の他端部に係止して所定位置に挿着される
こととなる。また、治具５の先端外周面には、段部５２
が形成されており、該段部５２と管継手１の内周面１１
との間に、ビード４を収納する空間部５０が形成される
ようになされている。この際、形成される空間部５０の
形状としては、特に限定されるものではないが、図５に
示すように、管継手１の他端部に管２を接続して管路を
構成した際に、段差を生じない均等な管路を構成できる
ようにしなければならない。また、図６に示すように、
空間部５０の容積を、ビード４の発生量よりも小さく
し、過剰のビード４を所定方向に逃がすようにしてもよ
い。この場合、融着接合後に逃がしたビード４の肉薄部
を切除することによって容易にビード４の処理を行うこ
とができる。Of these, the jig 5 provided on the inner peripheral surface 11
Is formed in a cylindrical shape having a flange portion 51 on the outer side thereof, and when the flange portion 5 is inserted into the inner peripheral surface 11 of the pipe joint 1,
1 is engaged with the other end of the pipe joint 1 and inserted into a predetermined position. Further, a stepped portion 52 is provided on the outer peripheral surface of the tip of the jig 5.
And the inner peripheral surface 11 of the pipe joint 1 is formed.
A space 50 for accommodating the bead 4 is formed between and. At this time, the shape of the space 50 formed is not particularly limited, but as shown in FIG. 5, when the pipe 2 is connected to the other end of the pipe joint 1 to form a pipe line. In addition, it must be possible to construct a uniform pipe line that does not cause a step. Also, as shown in FIG.
The volume of the space 50 may be made smaller than the amount of the bead 4 generated so that the excess bead 4 is allowed to escape in a predetermined direction. In this case, the bead 4 can be easily processed by cutting off the thin portion of the bead 4 that has escaped after fusion bonding.

【００１９】一方、外周面１２に設けられる治具５は、
その内方向に鍔部５３を有する円筒状に形成されてお
り、管継手１の外周面１２に被せた状態で、この鍔部５
３と管継手１の端部との間にビード４を収納する空間部
５０が形成されるようになされている。そして、融着接
合時に、この空間部５０でビード４を適正形状に成形す
ることによって外観に優れた融着接合を行うことができ
る。この際、ビード４の成形形状としては、特に限定さ
れるものではなく、例えば、図７に示すように、各種形
状にビード４を成形することができる。On the other hand, the jig 5 provided on the outer peripheral surface 12 is
It is formed in a cylindrical shape having a collar portion 53 in its inward direction, and when the outer peripheral surface 12 of the pipe joint 1 is covered, this collar portion 5
A space 50 for accommodating the bead 4 is formed between the pipe 3 and the end of the pipe joint 1. Then, at the time of fusion bonding, by molding the bead 4 into an appropriate shape in the space portion 50, fusion bonding excellent in appearance can be performed. At this time, the shape of the bead 4 is not particularly limited, and the bead 4 can be formed into various shapes as shown in FIG. 7, for example.

【００２０】なお、本実施例では管継手１に治具５を設
ける場合について述べているが、所望の治具５に交換す
ることで、管２に治具５を設けて融着接合を行うように
することもでき、また、双方に治具５を設けて融着接合
を行うようにすることもできる。Although the present embodiment describes the case where the jig 5 is provided on the pipe joint 1, the jig 5 is provided on the pipe 2 by exchanging it with a desired jig 5 to perform fusion bonding. Alternatively, the jigs 5 may be provided on both sides to perform fusion bonding.

【００２１】また、本実施例では、通常の管継手１およ
び管２に治具５を挿着して融着接合する場合について述
べているが、実施例１に示すような空間部１０、２０を
有する管継手１および管２を用いて融着接合を行っても
よい。この場合、図８に示すように、融着後、まだ樹脂
材料が溶融状態にある段階で、空間部１０、２０に生じ
たビード４を治具５で押圧して所望の形状に成形するよ
うにしてもよい。また、融着接合前にあらかじめこの治
具５を挿着しておくことで、融着時の管２の挿入代を容
易に決定することができる。Further, although the present embodiment describes the case where the jig 5 is inserted into the ordinary pipe joint 1 and the pipe 2 and fusion-bonded, the space portions 10 and 20 as shown in the first embodiment. The fusion bonding may be performed using the pipe joint 1 and the pipe 2 having the. In this case, as shown in FIG. 8, at the stage where the resin material is still in a molten state after fusion bonding, the beads 4 generated in the spaces 10 and 20 are pressed by the jig 5 to be molded into a desired shape. You may Further, by inserting the jig 5 in advance before fusion bonding, it is possible to easily determine the insertion allowance of the tube 2 during fusion bonding.

【００２２】このような治具５としては、ビード４との
接触面にクロームメッキなどを施して剥離性を向上させ
たものを使用することが好ましい。As the jig 5, it is preferable to use a jig whose contact surface with the bead 4 is plated with chrome or the like to improve the peelability.

【００２３】[0023]

【発明の効果】以上述べたように、本発明によると、融
着接合時に発生するビードを、空間部で固化させること
ができるので、接続後の管路内に段差を生じることもな
く、外観にも優れた実質的にビードのない融着接合を行
うことができる。As described above, according to the present invention, the bead generated at the time of fusion bonding can be solidified in the space portion, so that there is no step in the pipe after connection and the external appearance. Also, excellent and substantially beadless fusion bonding can be performed.

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

【図１】管継手の融着接合方法の概略を示す工程図であ
る。FIG. 1 is a process drawing showing an outline of a fusion bonding method for pipe joints.

【図２】管に形成される空間部の各種形状を示す部分断
面図である。FIG. 2 is a partial cross-sectional view showing various shapes of a space formed in a tube.

【図３】管継手に形成される空間部の各種形状を示す部
分断面図である。FIG. 3 is a partial sectional view showing various shapes of a space formed in the pipe joint.

【図４】実施例２に係る管継手の融着接合方法の概略を
示す工程図である。FIG. 4 is a process diagram showing an outline of a fusion bonding method for pipe fittings according to a second embodiment.

【図５】治具で成形した管継手内面側のビードの一実施
例を示す断面図である。FIG. 5 is a cross-sectional view showing an example of a bead on the inner surface side of a pipe joint formed by a jig.

【図６】治具による管継手内面側のビード処理の一実施
例を示す工程図である。FIG. 6 is a process diagram showing an example of a bead treatment on the inner surface side of a pipe joint by a jig.

【図７】治具で成形した管外面側のビードの各種形状を
示す部分破断図である。FIG. 7 is a partial cutaway view showing various shapes of a bead on the outer surface side of a pipe formed by a jig.

【図８】融着接合方法の他の実施例を示す工程図であ
る。FIG. 8 is a process drawing showing another embodiment of the fusion bonding method.

【図９】従来の管継手と管とのソケット融着接合の状態
を示す部分破断図である。FIG. 9 is a partial cutaway view showing a state of socket fusion welding of a conventional pipe joint and a pipe.

【符号の説明】[Explanation of symbols]

１ 管継手 １０ 空間部 １１ 内周面 ２ 管 ２０ 空間部 ２１ 外周面 ４ ビード ５ 治具 ５０ 空間部 DESCRIPTION OF SYMBOLS 1 Pipe joint 10 Space part 11 Inner peripheral surface 2 Pipe 20 Space part 21 Outer peripheral surface 4 Bead 5 Jig 50 Space part

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 管継手の内周面と、この内周面に挿入さ
れる管の外周面とを加熱した後、この管継手に管を挿入
して管継手の内周面と管の外周面とをソケット融着接合
する方法であって、 融着接合状態でビードが発生することとなる管継手およ
びまたは管のビード発生部分に、あらかじめ融着接合前
に空間部を凹設しておく、およびまたは治具を設けるこ
とによって空間部を形成しておき、融着接合時のビード
をこの空間部に生じさせることを特徴とする管継手の融
着接合方法。1. An inner peripheral surface of a pipe joint and an outer peripheral surface of the pipe joint are heated by heating an inner peripheral surface of the pipe joint and an outer peripheral surface of the pipe inserted into the inner peripheral surface. A method of fusion-bonding a surface with a socket, in which a bead is generated in the fusion-bonded state, and a space is previously provided in the bead-generating portion of the pipe joint and / or the pipe before fusion-bonding. And / or a jig is provided to form a space portion, and a bead at the time of fusion bonding is generated in the space portion.
JP4301009A 1992-11-11 1992-11-11 Fusing/connecting method for pipe coupling Pending JPH06147388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4301009A JPH06147388A (en) 1992-11-11 1992-11-11 Fusing/connecting method for pipe coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4301009A JPH06147388A (en) 1992-11-11 1992-11-11 Fusing/connecting method for pipe coupling

Publications (1)

Publication Number Publication Date
JPH06147388A true JPH06147388A (en) 1994-05-27

Family

ID=17891738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4301009A Pending JPH06147388A (en) 1992-11-11 1992-11-11 Fusing/connecting method for pipe coupling

Country Status (1)

Country Link
JP (1) JPH06147388A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1020046C2 (en) * 2002-02-22 2003-08-25 Heineken Tech Services Method and device for connecting a plastic pipe and a plastic sleeve.
CN100429448C (en) * 2004-01-26 2008-10-29 株式会社Acorn Heat melting assembling connector for pipeline
EP1859919A3 (en) * 2006-05-24 2010-03-03 Heateflex Corporation Fusion welded fittings with weld bead cover
KR101039817B1 (en) * 2010-11-25 2011-06-09 신광에스알피 주식회사 A pipe
NL2005306C2 (en) * 2010-09-02 2012-03-05 Tersia Nederland B V CONNECTOR FOR MULTI-LAYER PIPES, WELDING DEVICE FOR CONNECTING THE CONNECTOR TO MULTI-LAYER PIPES, METHOD OF CONNECTING AND A COMPOSITION OBTAINED VIA THE METHOD.
KR102226077B1 (en) * 2019-09-03 2021-03-10 신영석 Combination fusion type PE valve And Butt Fusion machine for that

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1020046C2 (en) * 2002-02-22 2003-08-25 Heineken Tech Services Method and device for connecting a plastic pipe and a plastic sleeve.
WO2003070451A1 (en) * 2002-02-22 2003-08-28 Heineken Technical Services B.V. A method and a device for connecting a plastic conduit and a plastic socket
CN100429448C (en) * 2004-01-26 2008-10-29 株式会社Acorn Heat melting assembling connector for pipeline
EP1859919A3 (en) * 2006-05-24 2010-03-03 Heateflex Corporation Fusion welded fittings with weld bead cover
US10281077B2 (en) 2006-05-24 2019-05-07 Heateflex Corporation Fusion welding fittings with weld bead cover
US8349122B2 (en) 2006-05-24 2013-01-08 Heateflex Corporation Fusion welding fittings with weld bead cover
WO2012030221A1 (en) * 2010-09-02 2012-03-08 Tersia Nederland B.V. Connecting piece for multilayered conduits, welding apparatus for connecting a connecting piece with multilayered conduits, method of connecting, and an assembly obtained by the method
NL2005306C2 (en) * 2010-09-02 2012-03-05 Tersia Nederland B V CONNECTOR FOR MULTI-LAYER PIPES, WELDING DEVICE FOR CONNECTING THE CONNECTOR TO MULTI-LAYER PIPES, METHOD OF CONNECTING AND A COMPOSITION OBTAINED VIA THE METHOD.
EP2784365A1 (en) * 2010-09-02 2014-10-01 Tersia B.V. Connecting piece for multilayered conduits, and method of connecting, and an assembly obtained by the method
US9631758B2 (en) 2010-09-02 2017-04-25 Tersia B.V. Connecting piece for multilayered conduits, method of connecting, and assembly obtained by the method
RU2709896C2 (en) * 2010-09-02 2019-12-23 Терсиа Б.В. Connecting part for multilayer pipelines, method of connection and unit produced by such method
KR101039817B1 (en) * 2010-11-25 2011-06-09 신광에스알피 주식회사 A pipe
KR102226077B1 (en) * 2019-09-03 2021-03-10 신영석 Combination fusion type PE valve And Butt Fusion machine for that

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