JPS5831512B2 - Kannotsugi Tebukozo - Google Patents
Kannotsugi TebukozoInfo
- Publication number
- JPS5831512B2 JPS5831512B2 JP50078822A JP7882275A JPS5831512B2 JP S5831512 B2 JPS5831512 B2 JP S5831512B2 JP 50078822 A JP50078822 A JP 50078822A JP 7882275 A JP7882275 A JP 7882275A JP S5831512 B2 JPS5831512 B2 JP S5831512B2
- Authority
- JP
- Japan
- Prior art keywords
- sealing gasket
- pipe
- packing
- joint
- engaging portion
- 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
Landscapes
- Joints With Sleeves (AREA)
Description
【発明の詳細な説明】
本発明は管の継手部構造に関し、詳細には受口管と挿口
管との間に介在されるシール用パツキンの機能を長期に
わたって有効に発揮させ且つ管の接続作業を容易ならし
める様に工夫された管の継手部構造に関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a joint structure for pipes, and more particularly, to a pipe joint structure that effectively exhibits the function of a sealing gasket interposed between a socket pipe and an inlet pipe over a long period of time, and connects pipes. This invention relates to a pipe joint structure that has been devised to make work easier.
本発明において、受口管とは先端部が受口状に加工され
た受口管及び管継手を総称する。In the present invention, the term "socket pipe" collectively refers to a socket pipe whose tip end is processed into a socket shape and a pipe joint.
従来より受口管と挿口管とを接合する代表的な方法とし
ては第１〜４図に示す如きメカニカル継手やタイトン継
手等が知られている。BACKGROUND OF THE INVENTION Conventionally, mechanical joints and Titon joints as shown in FIGS. 1 to 4 have been known as typical methods for joining a socket pipe and an inlet pipe.
即ち第１，２図はメカニカル継手を使用した接続工程を
説明する要部縦断面図で、フランジ部１ａを有する受口
管１と挿口管２とは、環状パツキン３をシール材とし押
輪４の押付は力によって水密性に接続される（第２図）
。That is, FIGS. 1 and 2 are longitudinal cross-sectional views of main parts for explaining the connection process using a mechanical joint, in which a socket pipe 1 and an inlet pipe 2 having a flange portion 1a are formed using an annular packing 3 as a sealing material and a press ring 4. The pressure is connected to watertightness by force (Fig. 2)
.
しかるにこの様なメカニカル継手においては、接続状態
においてシール用パツキン３は押輪４によって強固に押
付けられており、該パツキン３には圧縮力、曲げ力、引
張り力等の複雑な応力が作用している。However, in such a mechanical joint, the sealing gasket 3 is firmly pressed by the press ring 4 in the connected state, and complex stresses such as compressive force, bending force, and tensile force are applied to the gasket 3. .
ところが、ゴムや軟質プラスチック等は引張りに弱いと
いう欠点があるのでシール用パツキン３は比較的短期間
のうちに脆化し弾性を喪失して水密性低下の原因となる
。However, since rubber, soft plastic, etc. have the disadvantage of being weak against tension, the sealing gasket 3 becomes brittle and loses its elasticity in a relatively short period of time, causing a decrease in watertightness.
従ってこの様なメカニカル継手においては、シール用パ
ツキンの脆化を可及的に抑制し得る様な改良が望まれる
。Therefore, in such mechanical joints, it is desired that improvements be made to suppress the embrittlement of the sealing packing as much as possible.
一方策３，４図はタイトン継手を使用した接続工程を説
明する要部縦断面図で、受口管１の端部内周に輪設した
溝５に環状パツキン３を装着し、この内側に挿口管２を
抑圧嵌入して接続するものである。On the other hand, Figures 3 and 4 are longitudinal cross-sectional views of the main parts to explain the connection process using the Tieton joint, in which an annular packing 3 is attached to a groove 5 formed on the inner periphery of the end of the socket pipe 1, and the annular packing 3 is inserted inside this groove. The mouth tube 2 is press-fitted and connected.
しかるにこの様な継手では、シール用パツキン３０弾発
力に抗して挿口管２を嵌入する作業が困難であり、殊に
大口径管を接続する際の作業は困難を極める。However, with such a joint, it is difficult to insert the inlet tube 2 against the elastic force of the sealing gasket 30, and it is especially difficult to connect a large diameter pipe.
またこの接続作業を容易にしようとするとシール用パツ
キン３の密接状態が低下し水密性低下の原因となる。Further, if an attempt is made to make this connection work easier, the tightness of the sealing gasket 3 will deteriorate, causing a decrease in watertightness.
従ってこの様なタイトン継手においては、挿口管の抑圧
嵌入が容易でしかも高い水密性を保持できる様な改良が
望まれる。Therefore, it is desired to improve such a Tieton joint so that the insertion tube can be easily pressed into the joint while maintaining high watertightness.
本発明は叙上の様な事情に着目してなされたもので、そ
の目的はメカニカル継手やタイトン継手の何れにも適用
でき、接続作業を簡素化すると共にシール用パツキンの
脆化を可及的に抑制し、高い水密性を長期間維持し得る
様な継手構造を提供せんとするにある。The present invention was made with attention to the above-mentioned circumstances, and its purpose is to simplify the connection work and to minimize the embrittlement of the sealing packing. The purpose is to provide a joint structure that can maintain high watertightness for a long period of time.
かかる目的を達成し得た本発明の継手部構造とは、受口
管の内周先端部に環溝状のパツキン第１係合部を形成し
、該第１係合部よりも奥の位置に該第１係合部の環溝よ
り小内径の環溝よりなるパツキン第２係合部を設け、且
つ受口管の先端部にフランジ部を形成し、該フランジ部
に対向させてフランジ付押込部材を同心的に配置して、
前記第１係合部に環状パツキンを装着した状態で挿口管
を受口管に嵌合した後、シール用パツキンを前記第２係
合部に押し込んで受口管と挿口管を水密性下に接続し得
る様に構成したことを要旨とするものである。The joint structure of the present invention that achieves this purpose is such that an annular groove-shaped first engagement part of the seal is formed at the inner peripheral end of the socket pipe, and a first engagement part of the seal is formed at a position deeper than the first engagement part. A second engagement part of the packing is provided with an annular groove having an inner diameter smaller than the annular groove of the first engagement part, and a flange part is formed at the tip of the socket pipe, and a flange is provided opposite to the flange part. By arranging the pushing members concentrically,
After fitting the insertion tube to the socket tube with the annular gasket attached to the first engaging portion, a sealing gasket is pushed into the second engaging portion to make the socket tube and the insertion tube watertight. The gist of this is that it is configured so that it can be connected underneath.
即ち本発明によれば、挿口管を受口管に嵌入する際は、
シール用パツキンは受口管内周先端部に形成した第１係
合部に係止されているのみであり、受口管への挿口管の
嵌入を殆んど阻害しない。That is, according to the present invention, when fitting the insertion tube into the socket tube,
The sealing gasket is only engaged with the first engaging portion formed at the tip of the inner periphery of the socket tube, and hardly hinders the insertion of the insertion tube into the socket tube.
そして挿口管の嵌入を完了した後は、前記第１係合部の
奥部に設けた第２係合部にシール用パツキンを押し込む
ことによって簡単に接続作業を行なうことができる。After the fitting of the insertion tube is completed, the connection work can be easily performed by pushing the sealing gasket into the second engaging part provided at the inner part of the first engaging part.
殊に本発明において、第２係合部は第２係合部及びシー
ル用パツキンの外径よりも小径に形成されているので、
第２係合部に押し込まれたシール用パツキンは弾発力に
よって接続部の水密性を高度に維持する。In particular, in the present invention, since the second engaging portion is formed to have a smaller diameter than the outer diameter of the second engaging portion and the sealing gasket,
The sealing gasket pushed into the second engaging portion maintains a high degree of watertightness of the connection portion due to its elastic force.
また接続状態におけるシール用パツキンは、第１，２図
に示す如く押輪による押付は力で固定されるのではなく
、第２係合部の壁面全体で押付固定されているから複雑
な応力は生じない。In addition, in the connected state, the sealing gasket is not fixed by force when pressed by the push ring as shown in Figures 1 and 2, but is pressed and fixed by the entire wall surface of the second engagement part, so complex stress occurs. do not have.
従ってシール用パツキンの脆化が抑制され、弾性喪失に
伴なう水密性の低下を可及的に予防し得るものである。Therefore, embrittlement of the sealing packing is suppressed, and a decrease in watertightness due to loss of elasticity can be prevented as much as possible.
本発明は概略叙上の如く構成されるが、その特徴を一層
明確にするために、実施例たる図面に基づいて本発明の
構成及び作用効果を説明する。The present invention is constructed as outlined above, but in order to further clarify its features, the construction and effects of the present invention will be explained based on drawings which are embodiments.
もつとも下記実施例は本発明の代表的実施態様を例示す
るものにすぎず、本発明を限定する訳ではない。However, the following examples merely illustrate typical embodiments of the present invention, and do not limit the present invention.
第５〜１０図は本発明に係る継手部構造を例示するもの
で何れも要部縦断面図である。5 to 10 illustrate the joint structure according to the present invention, and each is a longitudinal sectional view of the main part.
第５゜６図はメカニカル継手に本発明を適用した場合を
例示するもので、受口管１の先端周縁はフランジ状に形
成されると共に、内周先端部にはパツキン第１係合部６
が設げられ、この第１係合部６よりも奥の位置にはパツ
キン第２係合部７が設けられる。Fig. 5.6 illustrates a case where the present invention is applied to a mechanical joint, in which the peripheral edge of the tip of the socket pipe 1 is formed in a flange shape, and the tip of the inner circumference is provided with a packing first engaging portion 6.
is provided, and a gasket second engagement portion 7 is provided at a position deeper than the first engagement portion 6.
第２係合部７は第１係合部６とほぼ相似形に形成される
が、その内径は第１係合部６内径及びシール用パツキン
３外径よりもやＳ小径とされる。The second engaging part 7 is formed to have a substantially similar shape to the first engaging part 6, but its inner diameter is S smaller than the inner diameter of the first engaging part 6 and the outer diameter of the sealing gasket 3.
また同径でもよい。They may also have the same diameter.
また第１係合部６はシール用パツキン３を殆んど抑圧変
形することなく係合し得る様比較的大径に形成する。Further, the first engaging portion 6 is formed to have a relatively large diameter so that it can engage the sealing gasket 3 without substantially deforming it.
従って、第５図に示す如く第１係合部６にシール用パツ
キン３を係合した状態で挿口管２を嵌入する作業は、殆
んど抵抗なく円渭に実施できる。Therefore, as shown in FIG. 5, the operation of inserting the insertion tube 2 with the sealing gasket 3 engaged with the first engaging portion 6 can be carried out smoothly with almost no resistance.
次いでボルトナツト９を締付け、押輪４によってシール
用パツキン３を奥部へ押すと、シール用パツキン３は第
２保合部７方向に押しやられて第６図の状態が得られる
。Next, when the bolt nut 9 is tightened and the sealing gasket 3 is pushed to the inner part by the push ring 4, the sealing gasket 3 is pushed toward the second retaining portion 7, and the state shown in FIG. 6 is obtained.
この状態において、シール用パツキン３は弾性変形して
第２係合部７及び挿口管２の周壁に密着するから、この
接合部は高い水密性を維持する。In this state, the sealing gasket 3 is elastically deformed and comes into close contact with the second engaging portion 7 and the circumferential wall of the insertion tube 2, so that this joint maintains high watertightness.
また第６図の如き接続状態では、押輪４はシール用パツ
キン３を殆んど押付げておらず、第２係合部７からシー
ル用パツキン３がころがり出すのを係止するに止まる。Further, in the connected state as shown in FIG. 6, the push ring 4 hardly presses the sealing gasket 3, and only stops the sealing gasket 3 from rolling out from the second engaging portion 7.
即ちシール用パツキン３は第２係合部７と挿口管２に押
圧されて弾性変形しているのみで、押輪４等による他の
外力例えば拡径力を受けることがない。That is, the sealing gasket 3 is only elastically deformed by being pressed by the second engaging portion 7 and the insertion tube 2, and is not subjected to any other external force such as a diameter expansion force from the press ring 4 or the like.
従ってパツキン３はもっばら水密性維持のために弾性変
形するのみであり、好ましくない引張力等の複雑な応力
が生じないから脆化が抑制され、長期間に亘って高い水
密性を維持スる。Therefore, the packing 3 only deforms elastically to maintain watertightness, and as complicated stresses such as undesirable tensile force are not generated, embrittlement is suppressed and high watertightness is maintained for a long period of time. .
尚本発明においてシール用パツキン３の形状は何ら限定
されず、図例の他種々の形状のものを使用でき、また係
合部６及び輪溝７の形状は環状パツキン３の形状に応じ
て適宜に定められる。In the present invention, the shape of the sealing packing 3 is not limited at all, and various shapes other than those shown in the illustrations can be used, and the shapes of the engaging portion 6 and the ring groove 7 can be changed as appropriate depending on the shape of the annular packing 3. stipulated by.
しかして係合部６及び輪溝７の壁面形状は、使用するシ
ール用パツキン３の外周形状と相似形に形成しておけば
、第１係合部６及び第２係合部７への係合を一層安定的
になし得るので好ましい。Therefore, if the wall surface shapes of the engaging portion 6 and the ring groove 7 are formed to be similar to the outer circumferential shape of the sealing packing 3 to be used, the engagement with the first engaging portion 6 and the second engaging portion 7 can be improved. This is preferable because the combination can be made more stable.
更に第９，１０図は本発明をメカニカル型の管継手に適
用した場合の実施例であって、その構造及び接続作業は
第５，６図に準じて同様に理解すればよい。Furthermore, FIGS. 9 and 10 show an embodiment in which the present invention is applied to a mechanical type pipe joint, and the structure and connection work can be understood in the same manner as shown in FIGS. 5 and 6.
尚図例によれば、第２係合部７はいずれも第１係合部６
の奥部に１個設けたが、該第２保合部７より奥側に更に
その内径まりもやＳ小径の第３保合部を１個若しくは２
個以上設けておき、要求されろ水密性の程度に応じて最
適の係合部位置に環状パツキンを係合固定する様にすれ
ば一段と高い水密性が確保できるので有利である。According to the illustrated example, the second engaging portion 7 is both connected to the first engaging portion 6.
One or two third retaining parts with an inner diameter of Marimo or S smaller diameter are further provided on the inner side of the second retaining part 7.
It is advantageous to provide more than one annular packing and to engage and fix the annular packing at an optimal engagement position depending on the degree of watertightness required, since even higher watertightness can be ensured.
前記説明からも明らかな如く、本発明に使用されるシー
ル用パツキンは弾性材料からなるものが使用され、ゴム
パツキンが最も一般的である。As is clear from the above description, the sealing gasket used in the present invention is made of an elastic material, and rubber gaskets are most commonly used.
また受口管及び挿口管の材質は特に限定されず、鋳鉄管
、鋼管、ダクタイル管、非鉄金属管等の金属管、塩ビ管
等の合成樹脂管、ＦＲＰ管等の複合管のほか石綿管、ヒ
ユーム管等にも適用することができる。The material of the socket pipe and the inlet pipe is not particularly limited, and includes metal pipes such as cast iron pipes, steel pipes, ductile pipes, non-ferrous metal pipes, synthetic resin pipes such as PVC pipes, composite pipes such as FRP pipes, and asbestos pipes. , can also be applied to Huyum tubes, etc.
尚前記実施例における挿口管の第２係合部に対応する外
周に凹溝を形成しておき、シール用パツキンを第２係合
部及び凹溝部分で係合固定し得る様にしておけば、シー
ル用パツキンのころがり出しを一層確実に防止すること
ができる。In addition, a concave groove is formed on the outer periphery of the insertion tube corresponding to the second engaging part in the above embodiment, so that the sealing gasket can be engaged and fixed by the second engaging part and the concave groove part. For example, it is possible to more reliably prevent the sealing gasket from rolling off.
本発明は前述の如く構成されているので、メカニカル継
手におけるシール用パツキンの脆化を可及的に抑制し高
い水密性を長期間維持し得ることとなった。Since the present invention is configured as described above, it is possible to suppress embrittlement of the sealing packing in a mechanical joint as much as possible and maintain high watertightness for a long period of time.
従って長尺管同士の接合或いは管継手を介した配管接続
において従来例では得られない利点を享受し得るもので
ある。Therefore, it is possible to enjoy advantages that cannot be obtained with conventional examples in joining long pipes or connecting pipes via a pipe joint.
図面は本発明を説明するもので、第１，２図は公知のメ
カニカル継手を示す要部縦断面図、第３゜４図は公知の
タイトン継手を示す要部縦断面図である。
第５．６，７．８図は本発明に係る継手部構造を例示す
るもので、何れも要部縦断面図である。
１・・・・・・受口管、２・・・・・・挿口管、３・・
・・・・シール用パツキン、４・・・・・・押輪、６・
・・・・・第１係合部、７・・・・・・第２係合部。The drawings are for explaining the present invention, and FIGS. 1 and 2 are longitudinal cross-sectional views of main parts showing a known mechanical joint, and FIGS. 3-4 are longitudinal cross-sectional views of main parts showing a known Titon joint. Figures 5.6 and 7.8 illustrate the joint structure according to the present invention, and both are longitudinal sectional views of essential parts. 1... Socket tube, 2... Insertion tube, 3...
...Packskin for sealing, 4...Press ring, 6.
...First engaging part, 7... Second engaging part.
Claims (1)
継手部構造において、受口管の内周先端部に環溝状のパ
ツキン第１保合部を形成すると共に、パツキン第１係合
部よりも奥の位置に該第１係合部の環溝より小内径の環
溝よりなるパツキン第２係合部を設けてなり、且つ受口
管の先端部にフランジ部を形成し、該フランジ部に対向
させてフランジ付押込部材を同心的に配置してなること
を特徴とする管の継手部構造。1. In a joint structure in which a socket pipe and an insertion pipe are joined via an annular packing, an annular groove-shaped packing first retaining part is formed at the inner circumferential tip of the socket pipe, and a first fitting part of the packing is A second engagement part of the seal is provided at a position deeper than the joint part, and the second engagement part is formed of an annular groove having an inner diameter smaller than that of the annular groove of the first engagement part, and a flange part is formed at the tip of the socket pipe, A joint structure for a pipe, characterized in that a flanged pushing member is arranged concentrically to face the flange part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50078822A JPS5831512B2 (en) | 1975-06-24 | 1975-06-24 | Kannotsugi Tebukozo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50078822A JPS5831512B2 (en) | 1975-06-24 | 1975-06-24 | Kannotsugi Tebukozo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS521725A JPS521725A (en) | 1977-01-07 |
| JPS5831512B2 true JPS5831512B2 (en) | 1983-07-06 |
Family
ID=13672514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50078822A Expired JPS5831512B2 (en) | 1975-06-24 | 1975-06-24 | Kannotsugi Tebukozo |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5831512B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63271213A (en) * | 1987-04-28 | 1988-11-09 | Pioneer Electronic Corp | Objective lens for optical pickup |
| JPH0412442B2 (en) * | 1983-09-20 | 1992-03-04 | Konishiroku Photo Ind |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100204117B1 (en) * | 1996-09-11 | 1999-06-15 | 유규재 | Process for manufacture of calsium carbonate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1372241A (en) * | 1970-10-21 | 1974-10-30 | Wavin Bv | Pipe connecting piece and pipe connection obtained by means thereof |
-
1975
- 1975-06-24 JP JP50078822A patent/JPS5831512B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1372241A (en) * | 1970-10-21 | 1974-10-30 | Wavin Bv | Pipe connecting piece and pipe connection obtained by means thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0412442B2 (en) * | 1983-09-20 | 1992-03-04 | Konishiroku Photo Ind | |
| JPS63271213A (en) * | 1987-04-28 | 1988-11-09 | Pioneer Electronic Corp | Objective lens for optical pickup |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS521725A (en) | 1977-01-07 |
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