JPH06221476A - Pipe coupling - Google Patents
Pipe couplingInfo
- Publication number
- JPH06221476A JPH06221476A JP5009915A JP991593A JPH06221476A JP H06221476 A JPH06221476 A JP H06221476A JP 5009915 A JP5009915 A JP 5009915A JP 991593 A JP991593 A JP 991593A JP H06221476 A JPH06221476 A JP H06221476A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- pipe joint
- tightening nut
- tightening
- inner diameter
- 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.)
- Withdrawn
Links
Landscapes
- Joints With Pressure Members (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、管同士を接合する管継
手に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe joint for joining pipes.
【０００２】[0002]
【従来の技術】従来の管継手としては、接合する管にネ
ジ加工を施さないで、管を気密に接合する手段として、
図２に示す構造の管継手１が用いられていた。図２には
管継手１の一方の管接合部Ａが示されている。この図２
の管継手１における継手機能としては１乃至４個所の接
合摩擦面を必要としている。 即ち、この管継手１の管
接合部Ａの内側に形成されたテーパー部１ａには管４外
周面との間にテーパー部材２が密着して介在されてお
り、管接合部Ａの外周に形成された継手雄ネジ部１ｂに
はテーパー部材２の後端に当接する締付けナット３が螺
合されている。このような構成において、締付けナット
３を締め付けるべくねじ込むと、そのテーパー部材２は
締付けナット３に押されて管４上を移動する。この時、
テーパー部材２は、内側に移動しようとするべく、管接
合部Ａのテーパー部１ａによって加圧され、内径が縮小
して管４に密着する。そしてテーパー部材２がさらに加
圧されると、管４を気密に保持し固定するようになる。2. Description of the Related Art As a conventional pipe joint, a pipe to be joined is not threaded, and a means for joining the pipes in an airtight manner is provided.
The pipe joint 1 having the structure shown in FIG. 2 was used. FIG. 2 shows one pipe joint portion A of the pipe joint 1. This Figure 2
The joint function of the pipe joint 1 requires 1 to 4 joining friction surfaces. That is, the taper member 2 is closely attached to the outer peripheral surface of the pipe 4 in the tapered portion 1a formed inside the pipe joint portion A of the pipe joint 1, and is formed on the outer periphery of the pipe joint portion A. A tightening nut 3 abutting against the rear end of the taper member 2 is screwed into the formed male screw portion 1b. In such a configuration, when the tightening nut 3 is screwed in to be tightened, the taper member 2 is pushed by the tightening nut 3 and moves on the pipe 4. At this time,
The taper member 2 is pressed by the taper portion 1a of the pipe joining portion A so as to move inward, the inner diameter is reduced, and the taper member 2 comes into close contact with the pipe 4. When the taper member 2 is further pressed, the tube 4 is held and fixed airtightly.
【０００３】[0003]
【発明が解決しようとする問題点】しかしながら、図２
に示した従来技術による管継手１においては、締付けナ
ット３を締め付ける時に、その締付けナット３と管継手
１の管接合部Ａにおける継手雄ネジ部１ｂとの螺合部
ａ、テーパー部材２と締め付けナット３の接触部ｂ、テ
ーパー部材２と管継手１の管接合部Ａにおけるテーパー
部１ａとの密着部ｃ、テーパー部材２の内側と管４の外
周面との接触部ｄにおける４箇所の摩擦抵抗に抗して締
め付けを行うこととなる。そのため締め付けに必要なト
ルクが大きい欠点があった。However, the problem shown in FIG.
In the pipe joint 1 according to the prior art shown in FIG. 1, when the tightening nut 3 is tightened, the tightening nut 3 and the male threaded portion 1b of the pipe joint A of the pipe joint 1 are screwed together with the taper member 2 and the taper member 2. Friction at four locations at the contact portion b of the nut 3, the contact portion c between the taper member 2 and the taper portion 1a of the pipe joint portion A of the pipe joint 1, and the contact portion d between the inside of the taper member 2 and the outer peripheral surface of the pipe 4. Tightening will be performed against resistance. Therefore, there is a drawback that the torque required for tightening is large.
【０００４】本発明は、構造が簡単且つ管接合が容易な
管継手を提供することを目的とする。An object of the present invention is to provide a pipe joint having a simple structure and easy pipe joining.
【０００５】[0005]
【課題を解決するための手段】本発明は上記目的を達成
するべくなされたもので、その要旨は、管継手におい
て、当該管継手の管接合部を接合する管が嵌合可能な内
径形状に形成し、該管接合部の外周にテーパーネジを加
工し、該テーパーネジに締め付けナットを螺入してなる
構造とし、上記締め付けナットを締め付け、上記管接合
部の内径を縮小させることによって該管接合部における
管を気密に保持するようにしたものである。SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and its gist is to provide an inner diameter shape in which a pipe for joining a pipe joint portion of the pipe joint can be fitted. A pipe screw is formed on the outer periphery of the pipe joint, and a tightening nut is screwed into the taper screw, and the tightening nut is tightened to reduce the inner diameter of the pipe joint. The tube at the joint is kept airtight.
【０００６】[0006]
【作用】上記構造の管継手において、締め付けナットを
締め付けて、管接合部の内径を縮小させることによって
管接合部における管を気密に保持できる。In the pipe joint of the above structure, the pipe at the pipe joint can be kept airtight by tightening the tightening nut to reduce the inner diameter of the pipe joint.
【０００７】[0007]
【実施例】以下、本発明の一実施例を図１を参照しなが
ら詳細に説明する。図１は本発明の管継手の一方の管接
合部における実施例である。図中５は管継手を示し、こ
の管継手５の管接合部Ａ’はその内周面に管７が嵌合可
能な内径を有する管嵌合面部ｅを形成すると共に、その
外周面に後述する締付けナット６が螺合可能な雄ネジ部
ｆが施されている。この管接合部Ａ’の雄ネジ部ｆと締
付けナット６の雌ネジ部ｇはテーパーネジを形成してい
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIG. FIG. 1 shows an embodiment of one pipe joint portion of the pipe joint of the present invention. Reference numeral 5 in the drawing denotes a pipe joint, and a pipe joint portion A ′ of the pipe joint 5 has a pipe fitting surface portion e having an inner diameter capable of fitting the pipe 7 on its inner peripheral surface, and will be described later on its outer peripheral surface. A male screw part f is provided on which the tightening nut 6 can be screwed. The male screw portion f of the pipe joint portion A ′ and the female screw portion g of the tightening nut 6 form a taper screw.
【０００８】かかる構造の管継手において、締付けナッ
ト６をねじ込むと、雄ネジ部ｆのテーパーネジに沿っ
て、締付けナット６は雄ネジ部ｆの太い径を有する基部
方向へ移動する。即ち、締め付けナット６は先細の雄ネ
ジ部ｆねじ込み始端から後方の拡径した雄ネジ部ｆねじ
込み終端に形成された雄ネジ部ｆのテーパーネジ上を内
側に縮径するようにねじ込み移動するので、管接合部
Ａ’の内周面の内径が圧縮されて徐々に縮径され、管７
を管接合部Ａ’内に接合固定し、機密に保持するように
なり、管継手における管接合を完了する。In the pipe joint having such a structure, when the tightening nut 6 is screwed in, the tightening nut 6 moves along the taper screw of the male screw portion f toward the base portion having the large diameter of the male screw portion f. That is, the tightening nut 6 moves by screwing in such a manner that the tightening nut 6 is inwardly contracted on the taper screw of the male screw part f formed at the screwing end of the tapered male screw part f and at the rear end of the enlarged male screw part f. , The inner diameter of the inner peripheral surface of the pipe joint portion A ′ is compressed and gradually reduced,
Is fixed to the inside of the pipe joint portion A ′ and kept secretly, and the pipe joint in the pipe joint is completed.
【０００９】[0009]
【発明の効果】以上説明したように本発明は、管継手の
管接合部を接合する管が嵌合可能な内径形状に形成し、
該管接合部の外周にテーパーネジを加工し、該テーパー
ネジに締め付けナットを螺入してなる構造とし、上記締
め付けナットを締め付け、上記管接合部の内径を縮小さ
せることによって該管接合部における管を気密に保持す
るようにしたので、摩擦抵抗を受ける部分は、管継手と
締め付けナットの螺合部分のテーパーネジ部分のみとな
り、締め付けに必要なトルクを必要最小限とすることが
できる。また従来の管継手に比較して、構造簡単であ
り、管の接合が容易な配管用継手とすることができる。As described above, according to the present invention, the pipe for joining the pipe joint portions of the pipe joint is formed into an inner diameter shape that can be fitted,
A taper screw is formed on the outer circumference of the pipe joint, and a tightening nut is screwed into the taper screw. The tightening nut is tightened to reduce the inner diameter of the pipe joint, thereby reducing the inner diameter of the pipe joint. Since the pipe is kept airtight, the portion that receives the frictional resistance is only the taper screw portion of the screwed portion of the pipe joint and the tightening nut, and the torque required for tightening can be minimized. Further, as compared with the conventional pipe joint, the pipe joint has a simple structure and can easily join the pipes.
【図１】本発明に係る管継手の一実施例を示す断面図FIG. 1 is a sectional view showing an embodiment of a pipe joint according to the present invention.
【図２】従来例の管継手を示す断面図FIG. 2 is a sectional view showing a conventional pipe joint.
５ 管継手 ６ 締付けナット ７ 管 Ａ’管接合部 ｅ 管嵌合面部 ｆ 雄ネジ部 ｇ 雌ネジ部 5 Pipe Joint 6 Tightening Nut 7 Pipe A'Pipe Joint e Pipe Fitting Surface f Male Threaded Part g Female Threaded Part
Claims (1)
を接合する管が嵌合可能な内径形状に形成し、該管接合
部の外周にテーパーネジを加工し、該テーパーネジに締
め付けナットを螺入してなる構造とし、上記締め付けナ
ットを締め付け、上記管接合部の内径を縮小させること
によって該管接合部における管を気密に保持するように
したことを特徴とする管継手。1. In a pipe joint, a pipe for joining a pipe joint portion of the pipe joint is formed into an inner diameter shape capable of fitting, a taper screw is formed on an outer periphery of the pipe joint portion, and the nut is tightened to the taper screw. A pipe joint, characterized in that the pipe in the pipe joint is held airtight by tightening the tightening nut and reducing the inner diameter of the pipe joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5009915A JPH06221476A (en) | 1993-01-25 | 1993-01-25 | Pipe coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5009915A JPH06221476A (en) | 1993-01-25 | 1993-01-25 | Pipe coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06221476A true JPH06221476A (en) | 1994-08-09 |
Family
ID=11733402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5009915A Withdrawn JPH06221476A (en) | 1993-01-25 | 1993-01-25 | Pipe coupling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06221476A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0126155Y2 (en) * | 1982-11-24 | 1989-08-04 | ||
| JPH03121048A (en) * | 1989-10-05 | 1991-05-23 | Kawasaki Steel Corp | Shield room for mri |
| JPH0431526A (en) * | 1990-05-29 | 1992-02-03 | Takenaka Komuten Co Ltd | Joining construction of shield panel |
| JPH0496299A (en) * | 1990-08-03 | 1992-03-27 | Takenaka Komuten Co Ltd | Panel plate for shielding room |
-
1993
- 1993-01-25 JP JP5009915A patent/JPH06221476A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0126155Y2 (en) * | 1982-11-24 | 1989-08-04 | ||
| JPH03121048A (en) * | 1989-10-05 | 1991-05-23 | Kawasaki Steel Corp | Shield room for mri |
| JPH0431526A (en) * | 1990-05-29 | 1992-02-03 | Takenaka Komuten Co Ltd | Joining construction of shield panel |
| JPH0496299A (en) * | 1990-08-03 | 1992-03-27 | Takenaka Komuten Co Ltd | Panel plate for shielding room |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000404 |