JPH0743579Y2 - Pipe fitting - Google Patents

Pipe fitting

Info

Publication number
JPH0743579Y2
JPH0743579Y2 JP1989016957U JP1695789U JPH0743579Y2 JP H0743579 Y2 JPH0743579 Y2 JP H0743579Y2 JP 1989016957 U JP1989016957 U JP 1989016957U JP 1695789 U JP1695789 U JP 1695789U JP H0743579 Y2 JPH0743579 Y2 JP H0743579Y2
Authority
JP
Japan
Prior art keywords
insert
joint
groove
joint body
peripheral surface
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
Application number
JP1989016957U
Other languages
Japanese (ja)
Other versions
JPH02107895U (en
Inventor
隆雄 三宅
良伸 楠原
秋生 保田
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
Higashio Mech Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Higashio Mech 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, Higashio Mech Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP1989016957U priority Critical patent/JPH0743579Y2/en
Publication of JPH02107895U publication Critical patent/JPH02107895U/ja
Application granted granted Critical
Publication of JPH0743579Y2 publication Critical patent/JPH0743579Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)

Description

【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、管相互を接続する管継手に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a pipe joint for connecting pipes to each other.

〔従来の技術〕[Conventional technology]

従来、第5図に励磁するように、合成樹脂製継手本体a
のみでは強度不足であるため、特に大きな力が作用する
部分を補強すべく金属製インサートbを合成樹脂成型時
に埋設していた。特に、このインサートbは内周面にネ
ジ部cを有する略円筒状であって、一方の管eの先端雄
ネジ部fが螺合する。
Conventionally, as shown in FIG.
Since the strength is insufficient only by itself, the metal insert b is embedded during the molding of the synthetic resin in order to reinforce the portion where a particularly large force acts. In particular, this insert b has a substantially cylindrical shape having a threaded portion c on its inner peripheral surface, and a male threaded portion f at the tip of one of the tubes e is screwed therein.

〔考案が解決しようとする課題〕[Problems to be solved by the device]

一般に、第5図のような金属製インサートbを埋込んだ
合成樹脂成型品から成る管継手にあっては、素材の金属
製インサートbと合成樹脂製継手本体bとの熱膨張の差
が大きいため、加熱冷却過程を経る成型段階に於て、両
者間の密着性、接合力が不足して、管eの螺合時−管接
続作業時−等に、インサートbに大きな外力が作用すれ
ば、インサートbと継手本体aとの接合面の剥離が促進
される。
Generally, in a pipe joint made of a synthetic resin molded product in which a metal insert b is embedded as shown in FIG. 5, there is a large difference in thermal expansion between the material metal insert b and the synthetic resin joint body b. Therefore, if a large external force acts on the insert b during the screwing of the pipe e-when connecting the pipes-, etc., due to the lack of adhesion and joining force between the two in the molding stage that passes through the heating and cooling process. The peeling of the joint surface between the insert b and the joint body a is promoted.

そのため、第5図中に破線矢印gに示すように、上記接
合面間を通って、流体の漏洩を生ずるという問題があっ
た。
Therefore, there is a problem that the fluid leaks through the joint surfaces as indicated by the broken line arrow g in FIG.

しかも、管内を流れる流体の圧力が、上記接合面を剥離
するように作用するため、流体の破線矢印g方向への漏
洩が一層発生しやすい。
Moreover, since the pressure of the fluid flowing in the pipe acts so as to separate the joint surface, the fluid is more likely to leak in the direction of the broken arrow g.

本考案はこのような問題点を解決することを目的とす
る。
The present invention aims to solve such problems.

〔課題を解決するための手段〕[Means for Solving the Problems]

本考案は上記課題を解決するために、内周面にネジ部を
有する金属製略円筒状インサートと、該インサートが埋
込まれた合成樹脂製継手本体とから、成る管継手に於
て、該インサートの外周面と、該継手本体の環状埋込凹
溝の底面との接合面を、右ネジのみ又は左ネジのみのネ
ジ結合として、該インサートが螺進退により上記埋込凹
溝の両端面の内の一方に圧着するように構成すると共
に、該インサートの圧着側端面又は両端面にシール材を
設けたものである。
In order to solve the above problems, the present invention provides a pipe joint comprising a metal-made substantially cylindrical insert having a threaded portion on its inner peripheral surface and a synthetic resin joint body in which the insert is embedded. The joint surface between the outer peripheral surface of the insert and the bottom surface of the annular recessed groove of the joint body is a screw connection of only the right screw or only the left screw, and the insert is screwed back and forth so that both end faces of the recessed groove are joined. The insert is configured to be crimped to one of the inside, and a sealant is provided on the crimping side end surface or both end surfaces of the insert.

また、内周面にネジ部を有する金属製略円筒状インサー
トと、該インサートが埋込まれた合成樹脂製継手本体と
から、成る管継手に於て、該インサートの外周面に、そ
の外周端縁が外鍔部となるように凹周溝部を形成すると
共に、該外鍔部にガスケットを被覆し、該外鍔部と凹周
溝部を除くインサートの外周面と、該継手本体の環状埋
込凹溝の底面との接合面を、右ネジのみ又は左ネジのみ
のネジ結合として、該インサートが螺進退により上記外
鍔部に対応する埋込凹溝の端面又は上記凹周溝部に対応
する継手本体の内鍔部に上記ガスケットを介して圧着す
るものである。
Further, in a pipe joint comprising a metal substantially cylindrical insert having a threaded portion on the inner peripheral surface and a synthetic resin joint body in which the insert is embedded, the outer peripheral surface of the insert has an outer peripheral end. A concave peripheral groove is formed so that the edge becomes the outer flange, and the outer flange is covered with a gasket, the outer peripheral surface of the insert excluding the outer flange and the concave peripheral groove, and the annular embedding of the joint body. The joint surface with the bottom surface of the recessed groove is a screw connection with only a right screw or a left screw, and the insert corresponds to the end face of the embedded recessed groove corresponding to the outer flange portion or the recessed peripheral groove portion corresponding to the outer flange portion by screwing back and forth. The inner flange of the main body is crimped via the gasket.

〔作用〕[Action]

管接続作業時に、管の先端雄ネジ部がインサート内周面
のネジ部に螺合し、その螺合部の摩擦力によって、イン
サートが管と共廻りせんとする。
At the time of pipe connection work, the male threaded portion at the tip of the pipe is screwed into the screwed portion on the inner peripheral surface of the insert, and the friction force of the screwed portion causes the insert to not rotate together with the pipe.

インサートの外周面と継手本体との接合面は、両者の材
質の相違による熱膨張差等の原因で、接合力が弱く、剥
離しやすいことは、既に述べたが、特に上記管接続作業
に於て、強力な回転トルクを加えるため、接合面が僅か
に滑り、相互に僅かな回転を生ずる。この接合面をネジ
結合としたため、この僅かな回転によって、インサート
が相対的に継手本体に対して軸心方向へ動くこととな
り、インサートの圧着側端面又は両端面にシール材が設
けられるものでは、インサートがシール材を介して埋込
凹溝の両端面の内の圧着側に圧着して十分な密封性が確
保される。
It has already been mentioned that the joint surface between the outer peripheral surface of the insert and the joint body has a weak joint force and is easily peeled off due to the difference in thermal expansion due to the difference in material between the two. As a result, a strong rotational torque is applied, so that the joint surfaces slip slightly and mutually rotate slightly. Since this joint surface is screw-coupled, this slight rotation causes the insert to move relatively in the axial direction with respect to the joint body, and in the case where the seal material is provided on the crimping side end surface or both end surfaces of the insert, The insert is pressure-bonded to the pressure-bonding side of both end surfaces of the embedded recessed groove via the sealing material to ensure sufficient sealing performance.

また、インサートの外周面に凹周溝部と外鍔部を備えた
ものでは、外鍔部に対応する埋込凹溝の端面又は凹周溝
部に対応する継手本体の内鍔部に、ガスケットを介して
インサートが圧着するので、この場合も十分な密封性が
確保される。
In addition, in the case where the outer peripheral surface of the insert is provided with a concave peripheral groove portion and an outer flange portion, a gasket is inserted through the end surface of the embedded concave groove corresponding to the outer flange portion or the inner flange portion of the joint body corresponding to the concave peripheral groove portion. Since the insert crimps the insert, sufficient sealing performance is secured in this case as well.

〔実施例〕〔Example〕

以下、図示の実施例に基づき本考案を詳説する。 Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

第1図に於て、中心線Lから上半部は管継手1の一実施
例を断面で示し、下半部はこの管継手1に管2,3を接続
した状態を断面で示している。
In FIG. 1, the upper half part from the center line L shows a cross section of one embodiment of the pipe joint 1, and the lower half part shows the state where the pipes 2 and 3 are connected to the pipe joint 1 in cross section. .

4は、内周面にテーパ状ネジ部5を有する金属製略円筒
状のインサートであり、6は該インサート4が射出合成
樹脂成型等によって埋込状に成型された継手本体であ
る。
Reference numeral 4 is a metal-made substantially cylindrical insert having a tapered threaded portion 5 on the inner peripheral surface, and 6 is a joint body in which the insert 4 is embedded in a synthetic resin molding or the like.

しかして、インサート4の外周面には予め平行雄ネジ部
7を形成しておいて、これを樹脂成型時に埋設すること
により、インサート4の外周面と、継手本体6の環状埋
込凹溝8の底面との接合面を、右ネジのみ又は左ネジの
みのネジ結合Nとして、インサート4が螺進退により埋
込凹溝8の両端面の内の一方に圧着するように構成す
る。
Then, by forming the parallel male screw portion 7 on the outer peripheral surface of the insert 4 in advance and embedding this at the time of resin molding, the outer peripheral surface of the insert 4 and the annular embedding groove 8 of the joint body 6 are formed. The joining surface with the bottom surface of the insert 4 is configured as a screw connection N of only the right screw or the left screw, and the insert 4 is configured to be crimped to one of both end faces of the embedded recessed groove 8 by screwing back and forth.

第1図ではソケット型の場合を例示し、一方の管2とし
てはライニング管を用いると共に、他方の管3としては
合成樹脂管を用いている。
In FIG. 1, the case of the socket type is illustrated, and a lining pipe is used as one pipe 2 and a synthetic resin pipe is used as the other pipe 3.

さらに具体的に説明すると、継手本体6の孔部10には、
軸心方向の略中央に低山型内鍔部9を有し、その右方へ
は先端拡径の緩やかなテーパ孔部11を有し、これに合成
樹脂管3を挿入して、接着、溶着又は融着にて密封状に
接続される。また、低山型内鍔部9から左方へは、ネジ
部12が形成され、さらに埋込凹溝8が形成され、これに
インサート4が埋設され、インサート4のネジ部5と、
継手本体6のネジ部12は連続した螺旋形状を成してい
る。13は埋込凹溝8の外端面14に対応する突条部であ
り、この突条部13からは比較的に大きな傾斜で先端拡径
のテーパ孔部15が形成される。このテーパ孔部15と、接
続状態のライニング管とによって形成される空隙部に
は、コーキング材16が充填される。
More specifically, the hole 10 of the joint body 6 includes
There is a low mountain type inner collar portion 9 at substantially the center in the axial direction, and a taper hole portion 11 with a gradual expansion of the tip is provided on the right side thereof, and the synthetic resin pipe 3 is inserted into this and bonded, They are connected in a sealed manner by welding or fusing. Further, a screw portion 12 is formed on the left side of the low mountain type inner collar portion 9, and an embedding concave groove 8 is further formed. The insert 4 is embedded in the embedding concave groove 8, and the screw portion 5 of the insert 4 and
The threaded portion 12 of the joint body 6 has a continuous spiral shape. Reference numeral 13 denotes a ridge portion corresponding to the outer end surface 14 of the embedded recessed groove 8. From the ridge portion 13, a tapered hole portion 15 having a relatively large inclination and a tip end diameter enlarged is formed. A caulking material 16 is filled in a space formed by the tapered hole portion 15 and the connected lining pipe.

ライニング管2の接続作業時、該管2の先端のテーパ状
雄ネジ部17が、管継手1のネジ部5に螺進してゆく。こ
のとき、雄ネジ部17とネジ部5との摩擦力によって、イ
ンサート4は雄ネジ部17と共廻りせんとする。
During the connecting work of the lining pipe 2, the tapered male screw portion 17 at the tip of the pipe 2 is screwed into the screw portion 5 of the pipe joint 1. At this time, due to the frictional force between the male screw portion 17 and the screw portion 5, the insert 4 does not rotate together with the male screw portion 17.

接合面がネジ結合Nであって、ネジ山と谷とが接して、
接合力は比較的大きいといえども、管2と管継手1の内
の一方をバイスで掴持し、他方をトルクレンチ等で強力
な回転トルクにて螺合するから、ネジ結合Nの接合面が
僅かに滑りを発生し、このネジ結合Nが右ネジか左ネジ
かに応じて、第1図に示す矢印Pのようにインサート4
の内端面18が埋込凹溝8の内端面に圧着され、又は、
(図示省略するが)インサート4の外端面14が突条部13
に圧着され、いずれにせよ、密封状態が得られる。即
ち、インサート4の裏側−接合面側−を通っての流体漏
洩路が、インサート4の内端面18又は外端面14の圧着に
て、密封遮断出来る。(なお、万一流体が漏れようとし
た時には、ネジ結合Nによるラビリンス効果によって、
ほとんど漏洩が発生しない。) しかして、この第1図では図示省略しているが、実際に
は第2図に示すように、インサート4の端面14,18にシ
ール溝19,19を凹設して、これにOリング等のシール材2
0,20を嵌着し、一層密封性を向上させている。ところ
で、同図のように両端面14,18にシール材20,20を設ける
ことにより、インサート4にいずれの方向の回転トルク
が最終接続時に作用したとしても、密封性の向上を確保
することが可能となる。勿論、圧着状態となる側の端面
14又は18にのみ、シール材20を設けるも自由である。な
お、インサート4のシール溝19に予めシール材20を嵌着
した後、これを金型の所定箇所に装着し、射出成型方法
により合成樹脂と一体成型する。また、ネジ部5,12をこ
の第2図のように平行ネジとするも自由である。
The joint surface is a screw joint N, and the screw thread and the valley are in contact,
Although the joining force is comparatively large, one of the pipe 2 and the pipe joint 1 is gripped with a vise, and the other is screwed with a strong rotary torque by a torque wrench or the like. Slips slightly, and depending on whether this screw connection N is a right-handed screw or a left-handed screw, the insert 4 as shown by an arrow P in FIG.
The inner end surface 18 of is crimped to the inner end surface of the recessed groove 8, or
The outer end surface 14 of the insert 4 (not shown) is a ridge 13
It is then crimped on, and in any case a sealed state is obtained. That is, the fluid leakage path passing through the back side of the insert 4 -the joint surface side-can be hermetically sealed by crimping the inner end surface 18 or the outer end surface 14 of the insert 4. (Note that if a fluid should leak, the labyrinth effect of the screw connection N
Almost no leakage occurs. Although not shown in FIG. 1, actually, as shown in FIG. 2, seal grooves 19, 19 are provided in the end surfaces 14, 18 of the insert 4 and O-rings are formed in the grooves. Sealing material 2
By fitting 0,20, the sealing performance is further improved. By providing the seal members 20, 20 on both end surfaces 14, 18 as shown in the figure, it is possible to ensure the improvement of the sealing performance regardless of which direction the rotational torque acts on the insert 4 during the final connection. It will be possible. Of course, the end face on the side that will be crimped
It is also free to provide the sealing material 20 only on 14 or 18. In addition, after the seal material 20 is fitted in the seal groove 19 of the insert 4 in advance, the seal material 20 is attached to a predetermined portion of the mold and is integrally molded with the synthetic resin by an injection molding method. Further, the screw portions 5 and 12 may be parallel threads as shown in FIG.

また、図示はしないが、インサート4の端面14,18にシ
ール溝19,19を凹設しないで、平坦面とされた該端面に
薄肉状の弾性材(ガスケット)を被覆してもよい。
Although not shown, the end surfaces 14 and 18 of the insert 4 may not be provided with the seal grooves 19 and 19, and the end surfaces which are flat surfaces may be covered with a thin elastic material (gasket).

次に、第3図に示す別の実施例のような形状にインサー
ト4及び埋込凹溝8を形成するも好ましいことがある。
即ち、インサート4は、その外周面に平行雄ネジ部7
と、凹周溝部21と、外鍔部22を順次備えた形状とする。
具体的には、インサート4の外周面に、その外周端縁が
外鍔部22となるように凹周溝部21を形成すると共に、該
外鍔部22に軟質プラスチックやゴム等の断面コの字又は
J字型等のガスケット23を被覆し、外鍔部22と凹周溝部
21を除くインサート4の外周面と、該継手本体6の環状
埋込凹溝8の底面との接合面を、右ネジのみ又は左ネジ
のみのネジ結合Nとして、インサート4が螺進退により
外鍔部22に対応する埋込凹溝8の端面又は凹周溝部21に
対応する継手本体6の内鍔部24にガスケット23を介して
圧着するように構成する。
Next, it may be preferable to form the insert 4 and the embedding groove 8 in a shape similar to another embodiment shown in FIG.
That is, the insert 4 has a parallel male screw portion 7 on its outer peripheral surface.
The concave groove portion 21 and the outer flange portion 22 are sequentially provided.
Specifically, the concave peripheral groove portion 21 is formed on the outer peripheral surface of the insert 4 so that the outer peripheral edge becomes the outer flange portion 22, and the outer flange portion 22 has a U-shaped cross section such as soft plastic or rubber. Alternatively, a J-shaped gasket 23 is covered to cover the outer collar portion 22 and the concave circumferential groove portion.
The joint surface between the outer peripheral surface of the insert 4 excluding 21 and the bottom surface of the annular recessed groove 8 of the joint body 6 is set as a screw connection N with only a right-hand screw or a left-hand screw, and the insert 4 is screwed forward and backward to form an outer collar. The end face of the embedded recessed groove 8 corresponding to the portion 22 or the inner flange portion 24 of the joint body 6 corresponding to the recessed peripheral groove portion 21 is crimped via the gasket 23.

なお、インサート4に予めガスケット23を取付けた後
に、金型に装着し、射出成型方法により合成樹脂の継手
本体6内に埋設する。このようにして、インサート4の
凹周溝部21には、ガスケット23の一部と共に、合成樹脂
が侵入して、内鍔部24が入った状態となる。
In addition, after the gasket 23 is attached to the insert 4 in advance, it is mounted on a mold and embedded in the joint body 6 made of synthetic resin by an injection molding method. In this way, the synthetic resin penetrates into the recessed circumferential groove portion 21 of the insert 4 together with a part of the gasket 23, and the inner flange portion 24 enters.

図示省略(第1図参照)の管2の先端雄ネジ部17を、イ
ンサート4の内周ネジ部5に螺進すれば、ネジ部5とネ
ジ部7の右ネジ・左ネジの組合せに応じて、(インサー
ト4が接合面に対して僅かに回転して、)インサート4
の内端面18と埋込凹溝8の内端面とがガスケット23の一
部を介して圧着(第3図参照)、又は、外鍔部22によっ
て形成された段付面25と、内鍔部24によって形成された
段付面26とが、ガスケット23の一部を介して圧着する
(第4図参照)。
If the male threaded portion 17 at the end of the pipe 2 (not shown) is screwed into the threaded portion 5 on the inner circumference of the insert 4, the threaded portion 5 and the threaded portion 7 can be formed according to the combination of right-handed and left-handed threads. The insert 4 (the insert 4 rotates slightly with respect to the joining surface)
The inner end surface 18 of the inner surface of the recessed groove 8 and the inner end surface of the recessed groove 8 are pressure-bonded via a part of the gasket 23 (see FIG. 3), or the stepped surface 25 formed by the outer flange portion 22 and the inner flange portion. The stepped surface 26 formed by 24 is crimped via a part of the gasket 23 (see FIG. 4).

この第3図と第4図の実施例は、突条部13を設計上の理
由で大きく設定することができず、インサート4の外端
面14の当りが小さい場合に好適である。
The embodiment shown in FIGS. 3 and 4 is suitable when the protrusion 13 cannot be set to a large size for design reasons and the outer end surface 14 of the insert 4 has a small contact.

なお、本考案に於て、「ネジ結合N」とは、図示の三角
形の山と谷の他に、長方形や台形や半丸等の山と谷の形
状とする場合も含み、さらに、螺旋の巻数を極端に少な
くする場合も包含するものと定義する。また、本考案は
ソケット以外に、エルボやチーズ等にも応用自由であ
り、また、射出成型以外のブロー成型も自由である。
In the present invention, the "screw connection N" includes not only the illustrated triangular peaks and valleys but also rectangular and trapezoidal or semi-circular peaks and valleys. It is defined as including when the number of turns is extremely reduced. In addition to the socket, the present invention can be applied to elbows and cheeses, and blow molding other than injection molding is also possible.

〔考案の効果〕[Effect of device]

本考案は上述の如く構成されているので、次に記載する
効果を奏する。
Since the present invention is configured as described above, it has the following effects.

請求項1記載の管継手によれば、管接続作業時のねじ
込み回転トルクを活用して、インサート4を螺進退さ
せ、これにより、埋込凹溝8の両端面の内の一方に、シ
ール材20を介して、インサート4を圧着させるので、イ
ンサート4の外周面と、継手本体6の埋込凹溝8の底面
との接合面において密着性及び接合力が不足していたと
しても、接合面側を通っての流体漏洩路を、シール材20
を介してのインサート4の内端面18又は外端面14の圧着
にて十分密封遮断できる。また、インサート4の両端面
にシール材20を設けた場合、インサート4に左右いずれ
かの方向の回転トルクが最終接続時に作用したとして
も、インサート4がシール材20を介して埋込凹溝8の両
端面の内の一方に必ず圧着し、十分な密封性を確保でき
る。
According to the pipe joint of claim 1, the insert 4 is screwed forward and backward by utilizing the screwing rotational torque at the time of pipe connecting work, whereby the sealing material is provided on one of both end faces of the embedded recessed groove 8. Since the insert 4 is crimped via the 20, even if the outer peripheral surface of the insert 4 and the bottom surface of the recessed groove 8 of the joint body 6 have insufficient adhesion and joint force, the joint surface The fluid leakage path through the
The inner end surface 18 or the outer end surface 14 of the insert 4 is pressure-bonded via the above to sufficiently seal and block. Further, in the case where the seal material 20 is provided on both end surfaces of the insert 4, even if the rotational torque in either the left or right direction acts on the insert 4 at the time of the final connection, the insert 4 inserts the seal material 20 through the seal material 20. Be sure to crimp to one of the two end faces to ensure sufficient sealing performance.

請求項2記載の管継手によれば、管接続時のねじ込み
回転トルクを活用して、インサート4を螺進退させ、こ
れにより、外鍔部22に対応する埋込凹溝8の端面又は凹
周溝部21に対応する継手本体6の内鍔部24に、ガスケッ
ト23を介してインサート4を圧着させるので、請求項1
記載の管継手と同様、インサート4の外周面と、継手本
体6の埋込凹溝8の底面との接合面において密着性及び
接合力が不足していたとしても、接合面側を通っての流
体漏洩路を、十分密封遮断できる。このように、十分密
封遮断できるので、例えば、第3図に示す突条部13を設
計上の理由で大きく設定できず、インサート4の外端面
14の当りが小さい場合に特に好適である。
According to the pipe joint of claim 2, the insert 4 is screwed forward and backward by utilizing the screwing rotational torque at the time of pipe connection, whereby the end face or the concave circumference of the embedded recessed groove 8 corresponding to the outer flange portion 22 is formed. The insert 4 is crimped to the inner flange 24 of the joint body 6 corresponding to the groove 21 via the gasket 23.
Similar to the described pipe joint, even if the joint surface between the outer peripheral surface of the insert 4 and the bottom surface of the recessed groove 8 of the joint body 6 lacks in adhesion and joint force, The fluid leakage path can be sufficiently sealed and shut off. In this way, since the seal can be sufficiently sealed and cut off, for example, the protrusion 13 shown in FIG.
It is particularly suitable when 14 hits are small.

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

第1図は本考案の一実施例を示す断面図、第2図は他の
実施例の要部断面図、第3図と第4図はさらに他の実施
例の要部断面図である。第5図は従来例を示す断面図で
ある。 N……ネジ結合、4……インサート、5……ネジ部、6
……継手本体、8……埋込凹溝、20……シール材、21…
…凹周溝部、22……外鍔部、23……ガスケット、24……
内鍔部。
FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view of an essential part of another embodiment, and FIGS. 3 and 4 are sectional views of an essential part of another embodiment. FIG. 5 is a sectional view showing a conventional example. N ... Screw coupling, 4 ... Insert, 5 ... Screw part, 6
…… Coupling body, 8 …… Embedded groove, 20 …… Seal material, 21…
… Concave circumferential groove, 22 …… Outer collar, 23 …… Gasket, 24 ……
Inner collar part.

フロントページの続き (72)考案者 楠原 良伸 大阪府大阪市北区西天満2丁目4番4号 積水化学工業株式会社内 (72)考案者 保田 秋生 大阪府河内長野市菊水町8―22 東尾継手 株式会社内 (56)参考文献 実公 昭53−50090(JP,Y2)Front page continuation (72) Yoshinobu Kusuhara Inventor Yoshinobu Kusuhara 2-4-4 Nishitenma, Kita-ku, Osaka City, Sekisui Chemical Co., Ltd. In-house (56) References Actual public Sho 53-50090 (JP, Y2)

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】内周面にネジ部5を有する金属製略円筒状
インサート4と、該インサート4が埋込まれた合成樹脂
製継手本体6とから、成る管継手に於て、該インサート
4の外周面と、該継手本体6の環状埋込凹溝8の底面と
の接合面を、右ネジのみ又は左ネジのみのネジ結合Nと
して、該インサート4が螺進退により上記埋込凹溝8の
両端面の内の一方に圧着するように構成すると共に、該
インサート4の圧着側端面又は両端面にシール材20を設
けたことを特徴とする管継手。
1. A pipe joint comprising a metal-made substantially cylindrical insert 4 having a threaded portion 5 on an inner peripheral surface thereof and a synthetic resin joint body 6 in which the insert 4 is embedded. The joint surface between the outer peripheral surface of the joint body 6 and the bottom surface of the annular embedding groove 8 of the joint body 6 is set as a screw connection N with only a right-hand screw or a left-hand screw, and the embedding recess groove 8 is formed by screwing the insert 4 forward and backward. A pipe joint, which is configured to be crimped to one of both end faces of the insert, and is provided with a seal material 20 on the crimping side end face or both end faces of the insert 4.
【請求項2】内周面にネジ部5を有する金属製略円筒状
インサート4と、該インサート4が埋込まれた合成樹脂
製継手本体6とから、成る管継手に於て、該インサート
4の外周面に、その外周端縁が外鍔部22となるように凹
周溝部21を形成すると共に、該外鍔部22にガスケット23
を被覆し、該外鍔部22と凹周溝部21を除くインサート4
の外周面と、該継手本体6の環状埋込凹溝8の底面との
接合面を、右ネジのみ又は左ネジのみのネジ結合Nとし
て、該インサート4が螺進退により上記外鍔部22に対応
する埋込凹溝8の端面又は上記凹周溝部21に対応する継
手本体6の内鍔部24に上記ガスケット23を介して圧着す
るように構成したことを特徴とする管継手。
2. A pipe joint comprising a metal-made substantially cylindrical insert 4 having a threaded portion 5 on its inner peripheral surface and a synthetic resin joint body 6 in which the insert 4 is embedded. A concave peripheral groove portion 21 is formed on the outer peripheral surface of the outer peripheral edge so that the outer peripheral edge thereof becomes the outer flange portion 22, and a gasket 23 is formed on the outer flange portion 22.
Insert 4 which covers the outer flange 22 and the concave circumferential groove 21.
The joint surface between the outer peripheral surface of the joint body 6 and the bottom surface of the annular recessed groove 8 of the joint body 6 is set as a screw connection N with only a right-hand screw or a left-hand screw, and the insert 4 is screwed back and forth to the outer flange portion 22. A pipe joint characterized in that the end face of the corresponding recessed groove 8 or the inner flange portion 24 of the joint body 6 corresponding to the recessed peripheral groove portion 21 is crimped via the gasket 23.
JP1989016957U 1989-02-16 1989-02-16 Pipe fitting Expired - Lifetime JPH0743579Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989016957U JPH0743579Y2 (en) 1989-02-16 1989-02-16 Pipe fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989016957U JPH0743579Y2 (en) 1989-02-16 1989-02-16 Pipe fitting

Publications (2)

Publication Number Publication Date
JPH02107895U JPH02107895U (en) 1990-08-28
JPH0743579Y2 true JPH0743579Y2 (en) 1995-10-09

Family

ID=31230333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989016957U Expired - Lifetime JPH0743579Y2 (en) 1989-02-16 1989-02-16 Pipe fitting

Country Status (1)

Country Link
JP (1) JPH0743579Y2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5652947Y2 (en) * 1976-10-01 1981-12-10

Also Published As

Publication number Publication date
JPH02107895U (en) 1990-08-28

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