JPH0619912Y2 - Welding joint - Google Patents
Welding jointInfo
- Publication number
- JPH0619912Y2 JPH0619912Y2 JP9225788U JP9225788U JPH0619912Y2 JP H0619912 Y2 JPH0619912 Y2 JP H0619912Y2 JP 9225788 U JP9225788 U JP 9225788U JP 9225788 U JP9225788 U JP 9225788U JP H0619912 Y2 JPH0619912 Y2 JP H0619912Y2
- Authority
- JP
- Japan
- Prior art keywords
- boss
- joint
- joint body
- socket
- heating element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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
- B29C66/70—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
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、合成樹脂製のガス管や水道管等の溶着接合に
用いられる継手に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a joint used for welding and joining a synthetic resin gas pipe or water pipe.
（従来の技術） 従来の溶着継手は、端子及び端子を内蔵するボスが、継
手本体の外周面から径方向へ真直に突設されたものであ
った（例えば特開昭５８−１３１０２５号公報参照）。(Prior Art) In a conventional welded joint, a terminal and a boss containing the terminal are provided so as to project straight from the outer peripheral surface of the joint body in the radial direction (see, for example, JP-A-58-131025). ).
（考案が解決しようとする課題） 一般にこのような溶着継手は、敷設作業時において、作
業性の面からボスが継手本体の頂部に位置するようにセ
ットされる。このため、このような従来の溶着継手にあ
っては、地中への敷設時において、ボスが上方へ開口し
て設けられることになるため、ボスの内部に土砂等が侵
入し易いという問題があった。また、雨天に敷設作業を
行う場合には、雨水が浸入して漏電する恐れもあった。(Problems to be Solved by the Invention) Generally, such a welded joint is set such that the boss is located at the top of the joint body during work of installation in terms of workability. Therefore, in such a conventional welded joint, the boss is provided so as to open upward at the time of laying in the ground, so that there is a problem that earth and sand easily enter the boss. there were. In addition, when laying in rainy weather, there is a risk that rainwater may enter and cause electrical leakage.
本考案は、上記のような問題に着目し、敷設時における
ボス内への土砂や雨水の浸入を防止できる溶着継手を提
供することを課題としている。The present invention focuses on the above problems, and an object thereof is to provide a welded joint capable of preventing the infiltration of earth and sand or rainwater into the boss at the time of laying.
（課題を解決するための手段） 上記課題を解決するために、本考案の溶着継手は、合成
樹脂で形成された継手本体の内周部に加熱要素が配設さ
れ、前記継手本体の頂部には、前記加熱要素の両端と接
続している端子が内蔵されたボスが上方に突設されてい
る溶着継手において、前記ボスが、略Ｌ形に屈曲して形
成されているものである。(Means for Solving the Problems) In order to solve the above problems, in the welding joint of the present invention, a heating element is arranged on the inner peripheral portion of the joint body formed of synthetic resin, and the heating element is provided on the top portion of the joint body. Is a welding joint in which a boss containing terminals connected to both ends of the heating element is provided so as to project upward, and the boss is formed by being bent into a substantially L shape.
（作用） 本考案の溶着継手は、ボスが、略Ｌ形に屈曲して形成さ
れているので、敷設時においてボスを継手本体の頂部に
位置させてセットすると、ボスの開口端部は側方に向け
られ、それによりボスの内部へ土砂や雨水が浸入し難く
なる。(Operation) In the welded joint of the present invention, the boss is formed by being bent into a substantially L shape. Therefore, when the boss is set at the top of the joint body during installation, the opening end of the boss is located laterally. It makes it difficult for dirt and rainwater to enter the inside of the boss.
（実施例） 以下、本考案の実施例を図面により詳述する。Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.
まず、第１図に示す第１実施例について、その構成を説
明する。First, the configuration of the first embodiment shown in FIG. 1 will be described.
尚、第１実施例を説明するにあたり、継手としてソケッ
トＡを例にとって説明する。In describing the first embodiment, the socket A will be described as an example of the joint.
本実施例のソケットＡは、円筒状に形成された継手本体
１と、該継手本体１の両端外周面から突設された一対の
ボス２，２を備えている。前記継手本体１の内周部に
は、ニクロム線等の導電線３が継手本体１の軸心を中心
として螺旋状に埋設されている。The socket A of this embodiment includes a joint body 1 formed in a cylindrical shape, and a pair of bosses 2, 2 protruding from the outer peripheral surfaces of both ends of the joint body 1. A conductive wire 3 such as a nichrome wire is embedded in a spiral shape around the axis of the joint body 1 in the inner peripheral portion of the joint body 1.
前記ボス２は、継手本体１の外周面から径方向へ突設さ
れた基端部２１と、該基端部２１の先端から継手本体１
の配管方向へ延設された開口端部２２とでＬ形に屈曲形
成されており、両端のボス２は、開口端部２２が互いに
背反する向きに形成されている。The boss 2 includes a base end portion 21 protruding from the outer peripheral surface of the joint body 1 in the radial direction, and a joint body 1 from the tip of the base end portion 21.
And the bosses 2 at both ends are formed so that the open end portions 22 are opposite to each other.
また、前記ボス２の開口端部２２には、前記導電線３の
両端と接続している端子４が内蔵されている。Further, the opening end 22 of the boss 2 has a built-in terminal 4 connected to both ends of the conductive wire 3.
尚、ボス２の曲げ角度は、第１図に示すように、ボス２
が頂部に位置するよう継手本体１を置いた場合に、鉛直
方向に対して４５〜９０度になることが望ましい。The bending angle of the boss 2 is as shown in FIG.
When the joint body 1 is placed so that is positioned at the top, the angle is preferably 45 to 90 degrees with respect to the vertical direction.
またこのソケットＡは、ポリプロピレン樹脂，ポリエチ
レン樹脂，塩化ビニル樹脂，ポリブテン樹脂等の熱可塑
性合成樹脂を素材として例えば射出成形にて形成されて
いる。ボス２は、継手本体１と同時に一体成形してもよ
いし、予め別体成形しておき、継手本体１を成形する際
にインサートして一体化してもよい。The socket A is formed of, for example, injection molding using thermoplastic synthetic resin such as polypropylene resin, polyethylene resin, vinyl chloride resin, polybutene resin. The boss 2 may be integrally molded at the same time as the joint body 1, or may be separately molded in advance and inserted and integrated when the joint body 1 is molded.
更に、本考案においては、加熱要素は本質的なものでは
なく、例えば多数の細い長尺の炭素繊維が束ねられた加
熱抵抗線であってもよい。また、長さが１０〜２０mmの
ニクロム線や炭素繊維等の導電性繊維がシート状に抄造
されたものであってもよい。Further, in the present invention, the heating element is not essential, and may be, for example, a heating resistance wire in which a large number of thin long carbon fibers are bundled. In addition, a sheet of electroconductive fiber such as nichrome wire or carbon fiber having a length of 10 to 20 mm may be formed into a sheet.
次に実施例の作用を説明する。Next, the operation of the embodiment will be described.
配管敷設作業を行う場合には、まず地面にソケットＡ及
び合成樹脂管（図示省略）が納まる溝を形成し、ソケッ
トＡの両端に合成樹脂管を差し込みながら、これらを溝
に沿って敷設していく。When performing piping laying work, first form a groove on the ground where the socket A and the synthetic resin pipe (not shown) are housed, and while inserting the synthetic resin pipe at both ends of the socket A, lay these along the groove. Go.
敷設するにあたっては、ソケットＡのボス２が継手本体
１の頂部に位置するようセットする。そうするとボス３
の開口端部２２は側方に向けられるので、側方からボス
２の内部にコントローラ（図示省略）のコネクタを差し
込んで、端子４，４間に一定電圧をかけて通電する。そ
して導電線３を発熱させ、その熱で継手本体１の内周部
及び合成樹脂管の外周部を溶融させてソケットＡと合成
樹脂管を互いに溶着させる。When laying, the boss 2 of the socket A is set so as to be located on the top of the joint body 1. Then boss 3
Since the open end 22 of is directed to the side, a connector of a controller (not shown) is inserted into the boss 2 from the side, and a constant voltage is applied between the terminals 4 and 4 to energize. Then, the conductive wire 3 is caused to generate heat, and the heat causes the inner peripheral portion of the joint body 1 and the outer peripheral portion of the synthetic resin pipe to be melted to weld the socket A and the synthetic resin pipe to each other.
このように、本実施例のソケットＡは、ボス２が継手本
体１の頂部に位置するようにセットすることで、ボス２
の開口端部２２が側方に向けられるので、敷設時の作業
性を損なわずに、ボス２の内部へ土砂や雨水が浸入し難
くすることができる。そうすることにより、敷設作業時
においては漏電が生じるのを防止でき、敷設後において
は端子４の腐食を防止できる。As described above, in the socket A of this embodiment, the boss 2 is set so that the boss 2 is located at the top of the joint body 1.
Since the open end 22 of is directed to the side, it is possible to make it difficult for dirt and rainwater to enter the inside of the boss 2 without impairing workability during installation. By doing so, it is possible to prevent the occurrence of electric leakage during the laying work, and to prevent the corrosion of the terminal 4 after the laying.
次に、第２図及び第３図に示す第２実施例について説明
する。Next, a second embodiment shown in FIGS. 2 and 3 will be described.
尚、第２実施例を説明するにあたり、分岐継手Ｂを例に
とって説明する。In describing the second embodiment, the branch joint B will be described as an example.
本実施例の分岐継手Ｂは、半円筒状のサドル部５ａを有
する継手本体５に、分岐接続部６が設けられたもので、
継手本体５の上端部にはキャップ７が設けられている。The branch joint B of the present embodiment is a joint body 5 having a semi-cylindrical saddle portion 5a and a branch connection portion 6 provided therein.
A cap 7 is provided on the upper end of the joint body 5.
この分岐継手Ｂは、ボス８が継手本体５とは別体に形成
され、継手本体５の凸部５１に対して回動可能に取り付
けられたものである。In this branch joint B, the boss 8 is formed separately from the joint main body 5 and is rotatably attached to the convex portion 51 of the joint main body 5.
尚、５２，８１は導電性金属プレートであって、ボス８
を継手本体５に取り付けると互いに接触するようになっ
ている。また、８２はリング状のシールゴムであって、
ボス８の基端部８３の内周面に設けられた環状溝８４に
嵌着されており、ボス８と継手本体５の凸部５１とのシ
ール性を確保するものである。Incidentally, 52 and 81 are conductive metal plates,
When they are attached to the joint body 5, they come into contact with each other. Further, 82 is a ring-shaped seal rubber,
It is fitted in an annular groove 84 provided on the inner peripheral surface of the base end portion 83 of the boss 8, and ensures the sealing property between the boss 8 and the convex portion 51 of the joint body 5.
従って、本実施例では、敷設状況等に応じて任意にボス
８の開口端部８５の向きを設定することができ、作業性
の向上を図ることができる。Therefore, in this embodiment, the orientation of the open end portion 85 of the boss 8 can be arbitrarily set according to the installation condition and the like, and the workability can be improved.
以上、本考案の実施例を図面により詳述してきたが、具
体的な構成はこの実施例に限られるものではなく本考案
の要旨を逸脱しない範囲の設計変更等があっても本考案
に含まれる。The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and even if there is a design change or the like within the scope not departing from the gist of the present invention, it is included in the present invention. Be done.
例えば、実施例ではソケットと分岐継手に適用例を示し
たが、他にエルボ，チーズ，レジューサ等に適用しても
よい。For example, in the embodiment, the application example is shown for the socket and the branch joint, but it may be applied to an elbow, cheese, reducer and the like.
また、第１実施例では、端子及びボスをソケットの管軸
方向に沿って互いに背反する向きに屈曲させたが、互い
に対向させたり同方向を向けて屈曲させてもよい。ま
た、管軸方向に対して直角方向あるいは傾斜方向に屈曲
させてもよい。Further, in the first embodiment, the terminals and the bosses are bent in directions opposite to each other along the axial direction of the socket, but they may be opposed to each other or may be bent in the same direction. Further, it may be bent in a direction perpendicular to the tube axis direction or in an inclined direction.
（考案の効果） 以上説明してきたように本考案の溶着継手にあっては、
敷設時の作業性を損なわずに、ボスの内部に土砂や雨水
が浸入するのを防止することができるという効果が得ら
れる。(Effect of the Invention) As described above, in the welding joint of the present invention,
It is possible to obtain an effect that it is possible to prevent soil and rainwater from entering the inside of the boss without impairing workability during installation.
第１図は本考案第１実施例のソケットを示す部分断面
図、第２図は第２実施例の分岐継手を示す側面図、第３
図は第２実施例の分岐継手の要部を示す縦断面図であ
る。 Ａ……ソケット（継手） １……継手本体 ２……ボス ３……導電線（加熱要素） ４……端子 Ｂ……分岐継手（継手） ５……継手本体 ８……ボスFIG. 1 is a partial sectional view showing a socket of a first embodiment of the present invention, FIG. 2 is a side view showing a branch joint of a second embodiment, and FIG.
The drawing is a vertical cross-sectional view showing the main part of the branch joint of the second embodiment. A: Socket (joint) 1 ... Joint body 2 ... Boss 3 ... Conductive wire (heating element) 4 ... Terminal B ... Branch joint (joint) 5 ... Joint body 8 ... Boss
Claims (1)
加熱要素が配設され、前記継手本体の外周面に、前記加
熱要素の両端と接続している端子が内蔵されたボスが突
設されている溶着継手において、前記ボスが、略Ｌ形に
屈曲して形成されていることを特徴とする溶着継手。1. A boss in which a heating element is disposed on an inner peripheral portion of a joint body made of synthetic resin, and a boss containing terminals connected to both ends of the heating element is provided on an outer peripheral surface of the joint body. In the welding joint that is provided in a protruding manner, the boss is formed by bending into a substantially L shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9225788U JPH0619912Y2 (en) | 1988-07-11 | 1988-07-11 | Welding joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9225788U JPH0619912Y2 (en) | 1988-07-11 | 1988-07-11 | Welding joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0214892U JPH0214892U (en) | 1990-01-30 |
| JPH0619912Y2 true JPH0619912Y2 (en) | 1994-05-25 |
Family
ID=31316708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9225788U Expired - Lifetime JPH0619912Y2 (en) | 1988-07-11 | 1988-07-11 | Welding joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619912Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101103026B1 (en) * | 2011-01-26 | 2012-01-05 | (주)폴리텍 | Electrofusion type jointing pipe having aligning function |
| KR101103024B1 (en) * | 2011-01-20 | 2012-01-05 | (주)폴리텍 | Electrofusion type jointing pipe |
| KR101163498B1 (en) * | 2011-12-29 | 2012-07-18 | 현대파이프피이케이 주식회사 | Electrofusion type pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63111394A (en) * | 1986-10-29 | 1988-05-16 | 日立金属株式会社 | Method of connecting electric fusion type plastic pipe |
-
1988
- 1988-07-11 JP JP9225788U patent/JPH0619912Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101103024B1 (en) * | 2011-01-20 | 2012-01-05 | (주)폴리텍 | Electrofusion type jointing pipe |
| KR101103026B1 (en) * | 2011-01-26 | 2012-01-05 | (주)폴리텍 | Electrofusion type jointing pipe having aligning function |
| KR101163498B1 (en) * | 2011-12-29 | 2012-07-18 | 현대파이프피이케이 주식회사 | Electrofusion type pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0214892U (en) | 1990-01-30 |
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