JP2604202Y2 - Pipe fittings with sockets with built-in heating wire - Google Patents
Pipe fittings with sockets with built-in heating wireInfo
- Publication number
- JP2604202Y2 JP2604202Y2 JP3878392U JP3878392U JP2604202Y2 JP 2604202 Y2 JP2604202 Y2 JP 2604202Y2 JP 3878392 U JP3878392 U JP 3878392U JP 3878392 U JP3878392 U JP 3878392U JP 2604202 Y2 JP2604202 Y2 JP 2604202Y2
- Authority
- JP
- Japan
- Prior art keywords
- heating wire
- peripheral surface
- power supply
- synthetic resin
- inner peripheral
- 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 - Fee Related
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
- Rigid Pipes And Flexible Pipes (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、受口内周面に電熱線を
埋設した管継手に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe joint in which a heating wire is embedded on an inner peripheral surface of a receiving port.
【０００２】[0002]
【従来の技術】従来からガス管等の配管分野では、図４
に要部断面図で示したような管継手を用いて合成樹脂管
を融着接合することが行なわれている。この管継手は合
成樹脂製継手本体１ａの受口１１ａの内周面に電熱線２
ａを埋設すると共に、該受口１１ａの外周面に電源接続
コネクター１３ａを突設して該コネクター１３ａの電源
端子１４ａに電熱線２ａの両端部を接続したものであっ
て、受口１１ａに合成樹脂管の端部を嵌挿してからコネ
クター１３ａの電源端子１４ａに電力線を接続し、電熱
線２ａを発熱させて受口１１ａの内周面と合成樹脂管の
端部外周面とを融着接合していた。2. Description of the Related Art Conventionally, in the field of piping such as gas pipes, FIG.
The fusion splicing of a synthetic resin pipe is performed using a pipe joint as shown in the sectional view of the main part. This pipe joint is provided with a heating wire 2 on the inner peripheral surface of the socket 11a of the synthetic resin joint body 1a.
a power connection connector 13a protrudes from the outer peripheral surface of the receptacle 11a, and both ends of the heating wire 2a are connected to the power supply terminal 14a of the connector 13a. After inserting the end of the resin tube, a power line is connected to the power terminal 14a of the connector 13a, and the heating wire 2a is heated to fuse the inner peripheral surface of the receptacle 11a and the outer peripheral surface of the end of the synthetic resin tube. Was.
【０００３】しかしながら、この従来管継手は受口１１
ａの外周面から電源接続コネクター１３ａおよび電源端
子１４ａが突出しているため、運搬・保管等の際にコネ
クター１３ａおよび電源端子１４ａを破損して融着接合
が行なえないことがあった。[0003] However, this conventional pipe joint has a socket 11
Since the power connection connector 13a and the power terminal 14a protrude from the outer peripheral surface of the connector a, the connector 13a and the power terminal 14a may be damaged during transportation and storage, and fusion bonding may not be performed.
【０００４】本考案はかかる課題を解決したものであっ
て、運搬・保管等の際に電源接続コネクターおよび電源
端子を破損する恐が全くなく、合成樹脂管を簡単かつ確
実に融着接合できる管継手を提供するものである。The present invention solves such a problem, and there is no fear that the power supply connector and the power supply terminal are damaged during transportation and storage, and the synthetic resin pipe can be easily and reliably fused and joined. A joint is provided.
【０００５】本考案は、合成樹脂製継手本体の一端部に
設けた受口の内周面に電熱線を所定間隔で螺旋状に埋設
し、また受口の外周面に二本の係止溝を設けると共に双
方の係止溝に跨がって一対の電源接続瑞子を設け、それ
ぞれの電源接続端子に電熱線の両端部を接続して前記二
本の係止溝に電源と接続したコネクターを係合させたと
き、受口の内周面に埋設した電熱線に通電できるように
なしたことを特徴とする。According to the present invention, a heating wire is helically embedded at a predetermined interval in an inner peripheral surface of a receiving port provided at one end of a synthetic resin joint body, and two locking grooves are provided in an outer peripheral surface of the receiving port. And a pair of power supply connecting mizus straddling both locking grooves, connecting both ends of the heating wire to respective power connecting terminals, and connecting the power supply to the two locking grooves. When engaged, the heating wire embedded in the inner peripheral surface of the receptacle can be energized.
【０００６】[0006]
【作用】受口の外周面にこれとほぼ面一に一対の電源接
続端子を設けたので、運搬・保管等の際に電源接続端子
を破損することがない。また、配管施工の際に前記電源
接続端子に電力線のコネクターを接続することができ
る。Since a pair of power supply terminals are provided on the outer peripheral surface of the receptacle almost flush with this, the power supply terminals are not damaged during transportation and storage. In addition, a connector of a power line can be connected to the power supply connection terminal at the time of piping construction.
【０００７】[0007]
【実施例】以下、本考案の実施例を図面にて詳細に説明
する。図１は本考案の一実施例を示す管継手の斜視図、
図２は図１に示した管継手の要部断面図、図３は本考案
の他の実施例を示す管継手の半断面図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a pipe joint showing one embodiment of the present invention,
FIG. 2 is a sectional view of a main part of the pipe joint shown in FIG. 1, and FIG. 3 is a half sectional view of the pipe joint showing another embodiment of the present invention.
【０００８】図中１はポリエチレン、ポリプロピレン、
ポリブテン等の合成樹脂からなる継手本体である。継手
本体１の一端部には受口１１が設けられており、該受口
１１の内周面に電熱線２が所定間隔で螺旋状に埋設され
ている。また、受口１１の外周面には所定間隔をもって
管軸方向に二本の係止溝１２が設けられており、該係止
溝１２，１２に跨がって一対の電源接続端子３が設けら
れている。In the figure, reference numeral 1 denotes polyethylene, polypropylene,
It is a joint body made of a synthetic resin such as polybutene. A socket 11 is provided at one end of the joint body 1, and the heating wire 2 is helically embedded at a predetermined interval in the inner peripheral surface of the socket 11. Further, two locking grooves 12 are provided on the outer peripheral surface of the receiving port 11 at predetermined intervals in the tube axis direction, and a pair of power supply connection terminals 3 are provided across the locking grooves 12. Have been.
【０００９】電源接続端子３は受口１１の外周面とほぼ
面一に設けられており、それぞれの電源接続端子３に前
記電熱線２の両端部が接続している。このように電源接
続端子３が受口１１の外周面とほぼ面一に設けられてい
ると、運搬・保管の際に電源接続端子３を破損すること
がなく、配管施工の際に電源接続端子３が邪魔になるこ
ともない。The power connection terminals 3 are provided substantially flush with the outer peripheral surface of the receptacle 11, and both ends of the heating wire 2 are connected to the respective power connection terminals 3. When the power supply connection terminal 3 is provided substantially flush with the outer peripheral surface of the receptacle 11 as described above, the power supply connection terminal 3 is not damaged during transportation and storage, and the power supply connection terminal 3 is not required during piping construction. 3 does not get in the way.
【００１０】また、前記二本の係止溝１２は受口１１の
外周面にコネクター４を固定するためのものであって、
それぞれの係止溝１２にコネクター４の爪部４１を係合
させると、コネクター４の裏面に設けた端子がそれぞれ
の電源接続端子３と弾発的に当接するようになってい
る。そこで、電源と接続した電力線５からそれぞれの電
源接続端子３に通電すると、受口１１の内周面に埋設し
た電熱線２が発熱し、受口１１の内周面と該受口１１に
嵌挿した合成樹脂管の端部外周面とが溶融して両者が一
体的に融着接続する。The two locking grooves 12 are for fixing the connector 4 to the outer peripheral surface of the receiving port 11,
When the claw portions 41 of the connector 4 are engaged with the respective locking grooves 12, the terminals provided on the back surface of the connector 4 resiliently contact the respective power supply connection terminals 3. Then, when power is supplied to each power supply connection terminal 3 from the power line 5 connected to the power supply, the heating wire 2 buried in the inner peripheral surface of the receptacle 11 generates heat and fits into the inner peripheral surface of the receptacle 11 and the receptacle 11. The end outer peripheral surface of the inserted synthetic resin tube is melted, and the two are integrally fused and connected.
【００１１】図３はユニオン継手に本考案を適用した他
の実施例を示すものであって、金属製ユニオンねじ６の
一端部に設けた円錐筒部６１に合成樹脂製管継手８の一
端部を外挿してから該ユニオンねじ６の雄ねじ６２にナ
ット７を螺合したものである。合成樹脂製管継手８の一
端部はシール材９を介して水密的に接続されており、そ
の他端部の受口１１の内周面には前記実施例と同様に電
熱線２が所定間隔で螺旋状に埋設されている。また、管
継手８の受口１１の外周面にはこれとほぼ面一に一対の
電源接続端子が設けられており、それぞれの電源接続端
子に電熱線２の両端部が接続している。FIG. 3 shows another embodiment in which the present invention is applied to a union joint. One end of a synthetic resin pipe joint 8 is attached to a conical cylindrical portion 61 provided at one end of a metal union screw 6. Is externally inserted, and the nut 7 is screwed into the male screw 62 of the union screw 6. One end of the synthetic resin pipe joint 8 is connected in a water-tight manner through a seal member 9, and the heating wire 2 is provided at a predetermined interval on the inner peripheral surface of the receiving port 11 at the other end similarly to the above embodiment. It is buried spirally. Further, a pair of power supply connection terminals are provided on the outer peripheral surface of the socket 11 of the pipe joint 8 almost flush with the same, and both ends of the heating wire 2 are connected to the respective power supply connection terminals.
【００１２】このユニオン継手の場合、金属製ユニオン
ねじ６の他端部に設けた雄ねじ６３に金属管を螺合して
から合成樹脂製管継手８の受口１１に合成樹脂管の端部
を挿入して融着接合する。このとき、管継手８の受口１
１に合成樹脂管の端部を挿入してからその挿入量を適宜
調整できるので、合成樹脂管が長すぎるために弛みがで
きたり、長さが不足して配管接続が行なえないというこ
とがない。In the case of this union joint, a metal pipe is screwed into a male screw 63 provided at the other end of the metal union screw 6, and then the end of the synthetic resin pipe is inserted into the socket 11 of the synthetic resin pipe joint 8. Insert and weld. At this time, the socket 1 of the pipe joint 8
Since the insertion amount can be appropriately adjusted after inserting the end portion of the synthetic resin pipe into 1, there is no possibility that the synthetic resin pipe is too long to be loosened, or that the pipe is not connected due to a short length. .
【００１３】以上詳述した如く、本考案の管継手は、合
成樹脂製継手本体の一瑞部に設けた受口の内周面に電熱
線を所定間隔で螺旋状に埋設し、また受口の外周面に二
本の係止溝を設けると共に双方の係止溝に跨がって一対
の電源接続端子を設け、それぞれの電源接続端子に電熱
線の両端部を接続して前記二本の係止溝に電源と接続し
たコネクターを係合させたとき、受口の内周面に埋設し
た電熱線に通電できるようになしたので、受口に嵌挿し
た合成樹脂管を簡単かつ確実に融着接合することができ
る。また、二本の係止溝に跨がって設けられた一対の電
源接続端子は受口の外周面とほぼ面一となっているの
で、運搬・保管の際に電源接続端子を引っ掛けて破損す
ることもない。As described in detail above, the pipe joint of the present invention has a heating wire helically embedded at a predetermined interval on the inner peripheral surface of a receiving port provided at a portion of the synthetic resin fitting main body. A pair of power connection terminals are provided across the two lock grooves while providing two locking grooves on the outer peripheral surface of the two, and both ends of the heating wire are connected to each power connection terminal. When the connector connected to the power supply is engaged in the locking groove, it is possible to conduct electricity to the heating wire buried in the inner peripheral surface of the receptacle, so the synthetic resin tube inserted in the receptacle can be easily and securely inserted. Fusion bonding can be performed. In addition, the pair of power supply terminals provided across the two locking grooves are almost flush with the outer peripheral surface of the receptacle, so the power supply terminals are hooked and damaged during transportation and storage Nothing to do.
【図１】図１は本考案の一実施例を示す管継手の斜視図
である。FIG. 1 is a perspective view of a pipe joint showing one embodiment of the present invention.
【図２】図２は図１に示した管継手の要部断面図であ
る。FIG. 2 is a sectional view of an essential part of the pipe joint shown in FIG.
【図３】図３は本考案の他の実施例を示す管継手の半断
面図である。FIG. 3 is a half sectional view of a pipe joint showing another embodiment of the present invention.
【図４】図４は従来管継手の要部断面図である。FIG. 4 is a sectional view of a main part of a conventional pipe joint.
１ 継手本体 ２ 電熱線 ３ 電源接続端子 １１ 受口 １２ 係止溝 DESCRIPTION OF SYMBOLS 1 Joint main body 2 Heating wire 3 Power supply connection terminal 11 Reception port 12 Locking groove
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F16L 47/02 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) F16L 47/02
Claims (1)
けた受口（１１）の内周面に電熱線（２）を所定間隔で
螺旋状に埋設し、また受口（１１）の外周面に二本の係
止溝（１２）を設けると共に双方の係止溝（１２）に跨
がって一対の電源接続端子（３）を設け、それぞれの電
源接続端子（３）に電熱線（２）の両端部を接続して前
記二本の係止溝（１２）に電源と接続したコネクター
（４）を係合させたとき、受口（１１）の内周面に埋設
した電熱線（２）に通電できるようになしたことを特徴
とする電熱線を内蔵した受口を有する管継手。A heating wire (2) is helically embedded at a predetermined interval in an inner peripheral surface of a receiving port (11) provided at one end of a synthetic resin joint body (1). two engagement of the outer peripheral surface of the
A stop groove (12) is provided, and both stop grooves (12) are straddled.
Therefore, a pair of power connection terminals (3) are provided, and each power connection terminal (3) is provided.
Connect both ends of the heating wire (2) to the source connection terminal (3)
A connector connected to a power supply in the two locking grooves (12)
When (4) is engaged, it is embedded in the inner peripheral surface of the socket (11).
The heating wire (2) pipe joint having a receptacle with a built-in heating wire, characterized in that Do was to be energized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3878392U JP2604202Y2 (en) | 1992-06-08 | 1992-06-08 | Pipe fittings with sockets with built-in heating wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3878392U JP2604202Y2 (en) | 1992-06-08 | 1992-06-08 | Pipe fittings with sockets with built-in heating wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0596689U JPH0596689U (en) | 1993-12-27 |
| JP2604202Y2 true JP2604202Y2 (en) | 2000-04-24 |
Family
ID=12534898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3878392U Expired - Fee Related JP2604202Y2 (en) | 1992-06-08 | 1992-06-08 | Pipe fittings with sockets with built-in heating wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2604202Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2639080B2 (en) * | 1989-03-28 | 1997-08-06 | 大阪瓦斯株式会社 | Electrofusion fittings |
| JPH04312287A (en) * | 1991-04-12 | 1992-11-04 | Sekisui Chem Co Ltd | Fused joint |
-
1992
- 1992-06-08 JP JP3878392U patent/JP2604202Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0596689U (en) | 1993-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |