JPS6233184Y2 - - Google Patents
Info
- Publication number
- JPS6233184Y2 JPS6233184Y2 JP1981172948U JP17294881U JPS6233184Y2 JP S6233184 Y2 JPS6233184 Y2 JP S6233184Y2 JP 1981172948 U JP1981172948 U JP 1981172948U JP 17294881 U JP17294881 U JP 17294881U JP S6233184 Y2 JPS6233184 Y2 JP S6233184Y2
- Authority
- JP
- Japan
- Prior art keywords
- socket
- pipe
- annular groove
- locking protrusion
- spout
- 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
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 9
- 239000000057 synthetic resin Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 6
- 230000004323 axial length Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Joints With Pressure Members (AREA)
- Joints With Sleeves (AREA)
- Joints Allowing Movement (AREA)
Description
【考案の詳細な説明】
本考案は、金属管と合成樹脂管とを伸縮自在に
接合すると共に、両管が接合部で離脱するのを防
止した管継手に関する。[Detailed Description of the Invention] The present invention relates to a pipe joint that elastically joins a metal pipe and a synthetic resin pipe and prevents the two pipes from coming apart at the joint.
従来、この種管継手としては、第2図に半断面
図で示したような構造のものが知られている。 Conventionally, as this type of pipe joint, one having a structure as shown in a half-sectional view in FIG. 2 is known.
この管継手は、ゴムリング3を装着した奥部に
断面台形状の溝Gを設け、該溝Gの両側面に断面
三角形の補助リングを接合すると共に両補助リン
グ間にスナツプリング4を装填して受口Rとし、
一方差口Sの外周には環状凹溝5を設け、該差口
Sを受口R内に挿入した際にスナツプリング4を
環状凹溝5内に係止させて離脱を防止するように
したものである。 In this pipe joint, a groove G with a trapezoidal cross section is provided in the inner part where the rubber ring 3 is attached, and auxiliary rings with a triangular cross section are joined to both sides of the groove G, and a snap spring 4 is loaded between the two auxiliary rings. Make the socket R,
On the other hand, an annular groove 5 is provided on the outer periphery of the spigot S, and when the spigot S is inserted into the socket R, the snap spring 4 is locked in the annular groove 5 to prevent it from coming off. It is.
しかしながら、この従来管継手は、構造が複雑
で部品点数が多いために製造に長時間を要し、必
然的にコストアツプが避けられなかつた。 However, this conventional pipe joint has a complicated structure and a large number of parts, so it takes a long time to manufacture, which inevitably increases costs.
しかも、スナツプリング4の変形、破損に起因
して離脱し易いという欠点があつた。 Moreover, there is a drawback that the snap spring 4 is easily separated due to deformation or damage.
本考案は、かかる従来欠点を解消したものであ
つて、管の伸縮を許容し、かつ構造簡単にして管
の離脱を確実に防止できる管継手を提供するもの
である。 The present invention overcomes these conventional drawbacks, and provides a pipe joint that allows the pipe to expand and contract, has a simple structure, and reliably prevents the pipe from separating.
以下、本考案を図面にて詳細に説明する。 Hereinafter, the present invention will be explained in detail with reference to the drawings.
第1図は、本考案の一実施例を示す部分断面図
であつて、図中1は金属管、2は合成樹脂管であ
る。 FIG. 1 is a partial sectional view showing an embodiment of the present invention, in which 1 is a metal tube and 2 is a synthetic resin tube.
金属管1は、鋼管、ステンレス管等であつて、
該管1の一端受口13内面に環状溝11を設け、
該溝11内にゴムリング3を装着する。受口13
の奥部には、前記環状溝11から所定距離をへだ
てた位置に管を絞つて受口内に突出した係止突起
12を形成する。この係止突起12は、第1図に
示すように周方向に連続して突出したものであつ
ても、部分的に突出した不連続なものであつても
よい。 The metal pipe 1 is a steel pipe, a stainless steel pipe, etc.
An annular groove 11 is provided on the inner surface of the socket 13 at one end of the pipe 1,
The rubber ring 3 is installed in the groove 11. Socket 13
A locking protrusion 12 is formed in the inner part of the tube at a position spaced apart from the annular groove 11 by a predetermined distance so as to protrude into the socket. The locking protrusion 12 may be a continuous protrusion in the circumferential direction as shown in FIG. 1, or a discontinuous protrusion partially protruding.
受口13の先端部には、ロール加工14を施
し、管の偏平強度を高めると共に合成樹脂管2の
挿入が容易に行えるような形状にしておく。 The distal end of the socket 13 is subjected to a roll process 14 to increase the flatness strength of the tube and to form a shape that allows easy insertion of the synthetic resin tube 2.
一方、合成樹脂管2は、前記受口13の内径よ
り小さく、かつ係止突起12の内径より若干外径
の大きい差口21を有し、該差口21の外周には
環状凹溝22を設け、差口先端部にはテーパ状の
傾斜面23を形成する。 On the other hand, the synthetic resin pipe 2 has a spigot 21 having an outer diameter smaller than the inner diameter of the socket 13 and slightly larger than the inner diameter of the locking protrusion 12, and an annular groove 22 on the outer periphery of the spigot 21. A tapered inclined surface 23 is formed at the tip of the spout.
環状凹溝22は、この溝内に係止される係止突
起12の先端部の軸方向長さよりも広幅に形成
し、かつ溝底の外径を前記係止突起12の内径よ
り若干小さくして係止突起12が環状凹溝22内
で軸方向に多少移動できるように構成する。 The annular groove 22 is formed wider than the axial length of the tip of the locking projection 12 that is locked in the groove, and the outer diameter of the groove bottom is slightly smaller than the inner diameter of the locking projection 12. The locking protrusion 12 is configured to be able to move somewhat in the axial direction within the annular groove 22.
金属管1と合成樹脂管2との接続は、受口13
内に差口21を挿入して合成樹脂管2の他端をハ
ンマー等で打ち込むと傾斜面23が係止突起12
を乗り越えて受口奥部に侵入し、係止突起12が
環状凹溝22内に嵌まり込んで係止される。 The connection between the metal pipe 1 and the synthetic resin pipe 2 is through the socket 13.
When inserting the spout 21 into the interior and driving the other end of the synthetic resin pipe 2 with a hammer or the like, the inclined surface 23 will engage the locking protrusion 12.
The locking protrusion 12 is fitted into the annular groove 22 and locked.
この際、合成樹脂管2の差口21をバーナ等で
加熱軟化させてから受口13内に押込むと、前記
接続操作が一層円滑に行うことができる。 At this time, if the spigot 21 of the synthetic resin pipe 2 is heated and softened with a burner or the like and then pushed into the socket 13, the connection operation can be performed more smoothly.
この接続方法以外には、受口13内に差口21
を挿入したのち、管に絞つて係止突起12を形成
し、該係止突起12を環状凹溝22内に係止させ
てもよい。 In addition to this connection method, there is a plug 21 in the socket 13.
After the tube is inserted, a locking projection 12 may be formed by tightening the tube, and the locking projection 12 may be locked in the annular groove 22.
本考案の管継手は以上の構成からなるので、配
管ラインで管が伸縮が発生した場合には、受口奥
部に突設した係止突起が差口外周に設けた環状凹
溝内さ移動できる範囲において管の伸縮が許容さ
れ、この範囲を越えた管の伸縮が発生した場合に
は管の離脱が確実に防止されることになる。 Since the pipe joint of the present invention has the above-mentioned configuration, when the pipe expands or contracts in the piping line, the locking protrusion protruding from the back of the socket moves into the annular groove provided on the outer periphery of the socket. The tube is allowed to expand and contract within the possible range, and if the tube expands or contracts beyond this range, separation of the tube will be reliably prevented.
また、受口内には所定の間隙をもつて差口が遊
嵌合しているので、管が屈曲した場合にはこの曲
りをも許容できるものであり、たとえ管に捩れが
起きて回転しても差口外周には全周に亘つて環状
凹溝が設けられているので、この環状凹溝から係
止突起が脱出する恐れは全くなく、管の離脱を確
実に防止できる。 In addition, since the spout is loosely fitted into the socket with a predetermined gap, this bending can be tolerated even if the pipe is twisted and rotated. Since the annular groove is provided all around the outer periphery of the spout, there is no possibility that the locking protrusion will escape from the annular groove, and separation of the pipe can be reliably prevented.
第1図は、本考案の一実施例を示す部分断面
図、第2図は従来管継手を示す半断面図である。
1……金属管、11……環状溝、12……係止
突起、13……受口、2……合成樹脂管、21…
…差口、22……環状凹溝。
FIG. 1 is a partial sectional view showing an embodiment of the present invention, and FIG. 2 is a half sectional view showing a conventional pipe joint. DESCRIPTION OF SYMBOLS 1... Metal pipe, 11... Annular groove, 12... Locking protrusion, 13... Socket, 2... Synthetic resin pipe, 21...
... Socket, 22... Annular groove.
Claims (1)
ムリングを装着すると共に受口奥部には管を絞つ
て受口内に突出した係止突起を形成し、一方前記
受口内に遊嵌される合成樹脂管の差口外周には係
止突起の軸方向長さよりも広幅の環状凹溝を設
け、該差口を前記受口内に挿入してゴムリングを
差口外周に密接させると共に係止突起を環状凹溝
内で移動自在に係止させたことを特徴とする管継
手。 An annular groove is provided on the inner surface of the socket of the metal tube, a rubber ring is installed in the groove, and a locking protrusion is formed at the back of the socket to squeeze the pipe and protrude into the socket. An annular groove wider than the axial length of the locking protrusion is provided on the outer periphery of the spout of the synthetic resin pipe to be fitted, and the spout is inserted into the socket to bring the rubber ring into close contact with the outer periphery of the spout. A pipe joint characterized in that a locking protrusion is movably locked in an annular groove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17294881U JPS5876886U (en) | 1981-11-20 | 1981-11-20 | pipe fittings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17294881U JPS5876886U (en) | 1981-11-20 | 1981-11-20 | pipe fittings |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5876886U JPS5876886U (en) | 1983-05-24 |
JPS6233184Y2 true JPS6233184Y2 (en) | 1987-08-25 |
Family
ID=29964822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17294881U Granted JPS5876886U (en) | 1981-11-20 | 1981-11-20 | pipe fittings |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5876886U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012112411A (en) * | 2010-11-22 | 2012-06-14 | Togawa Rubber Co Ltd | Joint member, resin pipe and pipe connecting structure |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100394852B1 (en) * | 1999-02-13 | 2003-08-19 | 김칠현 | Jointing structure of press type pipe joint |
JP6024014B2 (en) * | 2012-03-14 | 2016-11-09 | 株式会社ニチリン | Manufacturing method of rotatable joint |
JP2013194870A (en) * | 2012-03-22 | 2013-09-30 | Nisshin Steel Co Ltd | Method of connecting metal tube |
JP6876491B2 (en) * | 2016-04-20 | 2021-05-26 | 積水化学工業株式会社 | Cable protection tubes and fittings |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5299426A (en) * | 1976-02-17 | 1977-08-20 | Kubota Ltd | Flexible desorption preventing pipe joint |
-
1981
- 1981-11-20 JP JP17294881U patent/JPS5876886U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5299426A (en) * | 1976-02-17 | 1977-08-20 | Kubota Ltd | Flexible desorption preventing pipe joint |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012112411A (en) * | 2010-11-22 | 2012-06-14 | Togawa Rubber Co Ltd | Joint member, resin pipe and pipe connecting structure |
Also Published As
Publication number | Publication date |
---|---|
JPS5876886U (en) | 1983-05-24 |
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