JPH0366994A - Sealing rubber ring and tube fitting - Google Patents
Sealing rubber ring and tube fittingInfo
- Publication number
- JPH0366994A JPH0366994A JP19937689A JP19937689A JPH0366994A JP H0366994 A JPH0366994 A JP H0366994A JP 19937689 A JP19937689 A JP 19937689A JP 19937689 A JP19937689 A JP 19937689A JP H0366994 A JPH0366994 A JP H0366994A
- Authority
- JP
- Japan
- Prior art keywords
- rubber ring
- lubricating
- sealing rubber
- socket
- self
- 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.)
- Granted
Links
Landscapes
- Gasket Seals (AREA)
- Joints With Sleeves (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、例えば下水道等の管路の継手部分に装着され
るシール用ゴム幅と、このシール用ゴム輪が用いられる
管継手に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sealing rubber width that is attached to a joint part of a pipe, such as a sewer, and a pipe joint in which this sealing rubber ring is used. be.
（従来の技術）
下水道等の管路の継手部分を構成する受口と挿口との間
には、漏水等を防止し、気密性を保つためのシール用ゴ
ム輪が介装される。(Prior Art) A sealing rubber ring is interposed between a socket and an inlet that constitute a joint portion of a sewer pipe or the like to prevent water leakage and maintain airtightness.
このシール用ゴム輪は、例えば一方の管体の受口内周面
に形成された溝に予め装着される。そして、この受口に
他方の管体の挿口を挿入することで管体を接合し、管継
手を構成するようになっている。This sealing rubber ring is installed in advance, for example, in a groove formed in the inner peripheral surface of the socket of one of the tubes. Then, by inserting the socket of the other tube body into this socket, the tube bodies are joined to form a pipe joint.
従来、シール用ゴム輪の装着された受口に、挿口を挿入
し接合する際は、単に挿口を受［１に挿入するだけでは
、シール用ゴム輪の［Ｊ９のため挿入が困難となり、ま
た挿入時にシール用ゴム輪か他方の管体に押されて脱落
してしまう（ズッコゲる）という問題があるため、シー
ル′用ゴム輪の挿口との接触面と、挿口の外周面とに、
石鹸水や潤滑油等の潤滑剤を塗布し、シール用ゴム輪と
挿口との接触摩擦を少なくして、挿口を受口に挿入し、
接合していた。Conventionally, when inserting and joining a receptacle into a receptacle with a sealing rubber ring installed, simply inserting the receptacle into the receptacle [1] would make insertion difficult due to the sealing rubber ring [J9]. In addition, there is a problem that the sealing rubber ring is pushed by the other tube body and falls off when inserted. Toni,
Apply lubricant such as soapy water or lubricating oil to reduce the contact friction between the sealing rubber ring and the socket, and then insert the socket into the socket.
It was connected.
しかしながら、上述した従来の管体の接合方法では、潤
滑剤をシール用ゴム輪に塗布する際に、潤滑剤がシール
用ゴム輪の挿口との接触面以外に付着してしまう場合が
あり、余剰な潤滑剤が受口の溝とシール用ゴム輪との間
に染み込むことがある。その状態で受口に挿口を挿入す
ると、受口の溝との摩擦が少なくなるために、シール用
ゴム輪が受口の溝から脱落してしまうという問題が生じ
る。そのため、管接合が困難になるという問題がある。However, in the conventional pipe joining method described above, when applying lubricant to the sealing rubber ring, the lubricant may adhere to areas other than the contact surface of the sealing rubber ring with the insertion port. Excess lubricant may seep between the socket groove and the sealing rubber ring. If the socket is inserted into the socket in this state, there will be a problem in that the sealing rubber ring will fall out of the socket groove because the friction with the socket groove will be reduced. Therefore, there is a problem that pipe joining becomes difficult.
また、シール用ゴム輪や管体の挿口に潤滑剤を’ａｍ塗
布する作業は、挿口と受口の接合時に行うため、煩雑で
あるという問題がある。Further, there is a problem in that the work of applying lubricant to the sealing rubber ring and the insertion port of the tube body is complicated because it is performed when the insertion port and the socket are joined together.
そこで１本発明は、上記問題点を解消するために、受口
と挿口の接合時に、簡単に脱落せず、かつ、潤滑剤を塗
布しなくとも容易に受口と挿口の接合が行なえるシール
用ゴム輪とこのシール用ゴム輪が用いられる管継手を提
供することを目的としている。Therefore, in order to solve the above-mentioned problems, the present invention prevents the socket from falling off easily when joining the socket and the socket, and also allows the socket and the socket to be easily joined without applying lubricant. The object of the present invention is to provide a sealing rubber ring and a pipe joint in which the sealing rubber ring is used.
（２１題を解決するための手段〕 次に、上記の目的を達成するための手段を説明する。(Means for solving 21 problems) Next, means for achieving the above object will be explained.
この発明のシール用ゴム輪は、自己潤滑性を有するゴム
質材料よりなる潤滑部と、自己潤滑性を有しないゴム質
材料よりなる固定部が二重層状に結合されていることを
特徴としている。The sealing rubber ring of the present invention is characterized in that a lubricating part made of a rubber material with self-lubricating properties and a fixing part made of a rubber material without self-lubricating properties are combined in a double layer. .
また、このシール用ゴム輪を有する管継手は、一方の管
体の受口又は挿口に、他方の管体の挿口又は受口を挿入
して構成され、前記一方の管体の他方の管体に接する側
の壁面にはシール用ゴム輪が設けられてなる管継手にお
いて、
前記シール用ゴム輪は、その前記一方の管体の壁面に接
する側の半部が自己潤滑性を有しないゴム質材料よりな
る固定部とされ、他方の管体の壁面に接する側の半部が
自己潤滑性を有するゴム質材料よりなる潤滑部とされ、
該固定部と潤滑部とが二重層状に結合されてなることを
特徴としている。In addition, the pipe joint having this sealing rubber ring is constructed by inserting the socket or socket of the other pipe body into the socket or socket of the one pipe body. In a pipe joint in which a sealing rubber ring is provided on the wall surface in contact with the pipe body, a half of the sealing rubber ring on the side in contact with the wall surface of the one pipe body does not have self-lubricating properties. The fixed part is made of a rubber material, and the half part on the side in contact with the wall of the other tube is a lubricating part made of a rubber material having self-lubricating properties.
It is characterized in that the fixing part and the lubricating part are combined in a double layer.
シール用ゴム輪の自己潤滑性を有しないゴム材の固定部
側を、一方の管体の受口または挿口に装着し、この受口
または挿口に対応する他方の管体の挿口または受口を嵌
挿して接合すると、この挿口または受口の壁面が前記シ
ール用ゴム輪の自己潤滑性を有するゴム材の潤滑部の潤
滑面に接摺して当接する。そして、潤滑面から潤滑剤が
滲出することで受口および挿口は容易に接合され、また
固定部の摩擦力によりシール用ゴム輪が接合時にズッコ
ケて脱落することがない。Attach the fixed part side of the non-self-lubricating rubber material of the sealing rubber ring to the socket or socket of one pipe body, and attach the corresponding socket or socket of the other pipe body to this socket or socket. When the receptacle is inserted and joined, the receptacle or the wall surface of the receptacle slides into contact with the lubricated surface of the lubricated portion of the self-lubricating rubber material of the sealing rubber ring. The lubricant oozes out from the lubricated surface, allowing the socket and the insertion port to be easily joined, and the frictional force of the fixing portion prevents the sealing rubber ring from coming off during joining.
（実施例）
第１図は本発明によるシール用ゴム輪の一実施例を示す
一部省略側断面図である。(Embodiment) FIG. 1 is a partially omitted side sectional view showing an embodiment of a sealing rubber ring according to the present invention.
本実施例の一方の管体５ａの一端の受口６は、管体の外
径より大径に形成され、また他方の管体５ｂの挿口７は
管体と同径に形成されている。つまり、挿口７の外径に
比べ受口６の径が拡径に形成されている。受口６の内周
面には、溝部６ａが形成され、シール用ゴム輪１が装着
されるようになっている。In this embodiment, the socket 6 at one end of one of the tubes 5a is formed to have a larger diameter than the outer diameter of the tube, and the socket 7 of the other tube 5b is formed to have the same diameter as the tube. . In other words, the diameter of the socket 6 is larger than the outer diameter of the socket 7. A groove 6a is formed on the inner circumferential surface of the socket 6, into which the sealing rubber ring 1 is attached.
次に、シール用ゴム輪１は、一方の管体５ａの受口６に
装着される固定部２と、この受口６に対応する挿口７に
当接する潤滑部３とで構成されている。Next, the sealing rubber ring 1 is composed of a fixed part 2 that is attached to a socket 6 of one of the pipe bodies 5a, and a lubricating part 3 that comes into contact with a socket 7 corresponding to this socket 6. .
固定部２は、従来のゴム材と同様のスチレン・ブタヂエ
ン共重合ゴム（ＳＢＲ）等からなり、第１図に示すよう
に、断面が略台形状の外周部２ａと、この外周部２ａの
内面側の一部から舌片状に突出した内周部２ｂとが略Ｖ
字形状に形成されている。この固定部２の外周部２ａは
、一方の管体５の受口６の内周面に形成されている溝部
６ａに嵌合して装着されるようになっている。The fixing part 2 is made of styrene-butadiene copolymer rubber (SBR) similar to conventional rubber materials, and as shown in FIG. The inner peripheral part 2b protruding like a tongue from a part of the side is approximately V.
It is formed in a letter shape. The outer circumferential portion 2a of the fixing portion 2 is fitted into a groove portion 6a formed in the inner circumferential surface of the socket 6 of one of the tube bodies 5.
他方、潤滑部３は、クロロプレンゴム（ＣＲ）１００重
量部゛にナフテン系のプロセス油を混入したゴム材や、
ニトリルゴム（ＮＢＲ）１００重量・部にナフテン系の
プロセス油を３０重量部混入したゴム材等、極性基を有
したゴム材に非極性の石油系プロセス油を相溶度以上に
混入した加硫ゴム材、すなわち、石油系プロセス油が潤
滑剤としてゴム材から滲出する自己潤滑性を有したゴム
材より形成され、前記固定部２の内周部２ｂの内周面側
にこの内周部２ｂと一体に層状に重合して、形成されて
いる。そして、この潤滑部３は他方の管体５ｂの挿口７
の外周面７ａに当接するようになっている。On the other hand, the lubricating part 3 is made of a rubber material made of 100 parts by weight of chloroprene rubber (CR) mixed with naphthenic process oil,
Vulcanization in which non-polar petroleum-based process oil is mixed in a rubber material with polar groups in an amount greater than the compatibility, such as a rubber material in which 100 parts by weight of nitrile rubber (NBR) is mixed with 30 parts by weight of naphthenic process oil. It is formed of a rubber material, that is, a self-lubricating rubber material in which petroleum-based process oil exudes from the rubber material as a lubricant, and this inner peripheral portion 2b is formed on the inner peripheral surface side of the inner peripheral portion 2b of the fixing portion 2. It is formed by polymerizing in a layered manner. This lubricating part 3 is connected to the insertion port 7 of the other tube body 5b.
It comes into contact with the outer circumferential surface 7a of.
上記の実施例において、固定部２を５ＢＲ５潤滑部３を
ＣＲ又はＮＢＲにより形成した例を示したが、固定部２
及び潤滑部３共にＣＲにより形成させるようにしてもさ
しつかえない。In the above embodiment, an example was shown in which the fixing part 2 was formed of 5BR5 and the lubricating part 3 was formed of CR or NBR, but the fixing part 2
It is also possible to form both the lubricating portion 3 and the lubricating portion 3 by CR.
次に本実施例のシール用ゴム輪！の作用を説明する。シ
ール用ゴム輪１は、その固定部２を一方の管体５ａの受
口６の内周面に形成されている溝６ａに装着する。この
時、舌片状の内周部２ｂの先端は一方の管体５ａの受口
６の内方に向くように装着する。そして、この受口６に
他方の管体５ｂの挿口７を挿入する。挿入時、挿口７の
先端７ｂはシール用ゴム輪１の潤滑部３に当接し、この
潤滑部３を圧縮するが、この潤滑部３は、挿ロ７外周と
の接触面が潤滑面となり、挿入時の潤滑剤となる石油系
プロセス油が滲出するためスムーズに挿入が行われる。Next is the rubber ring for sealing in this example! Explain the effect of The fixing portion 2 of the sealing rubber ring 1 is attached to a groove 6a formed in the inner peripheral surface of the socket 6 of one of the tubes 5a. At this time, the tip of the tongue-shaped inner peripheral part 2b is attached so as to face inward of the socket 6 of one of the tubes 5a. Then, the socket 7 of the other tube body 5b is inserted into this socket 6. During insertion, the tip 7b of the socket 7 comes into contact with the lubricating part 3 of the sealing rubber ring 1 and compresses this lubricating part 3, but the surface of this lubricating part 3 that comes in contact with the outer circumference of the insertion slot 7 becomes a lubricating surface. The petroleum-based process oil that acts as a lubricant during insertion oozes out, allowing for smooth insertion.
また固定部２は、自己潤滑性がなる摩擦系数が大きいた
め挿入時に溝部６ａから脱落するということがない。そ
して、挿口７を受口６のストッパー段部６ｂに当接する
まで挿入すれば一方及び他方の管体５ａ、５ｂの接合が
完了し、シール用ゴム輪１が受口６と挿口７との間に介
装された管継手となる。この管継手の状態では、シール
用ゴム輪１は圧縮されており、漏水等を防止し、気密性
が保たれる。Moreover, since the fixed part 2 has a large friction coefficient that provides self-lubricating properties, it will not fall off from the groove part 6a during insertion. Then, by inserting the socket 7 until it contacts the stopper step 6b of the socket 6, the joining of the one and the other tube bodies 5a, 5b is completed, and the sealing rubber ring 1 is inserted between the socket 6 and the socket 7. This is a pipe joint inserted between the two. In this state of the pipe joint, the sealing rubber ring 1 is compressed, prevents water leakage, etc., and maintains airtightness.
従って上述した実施例によるシール用ゴム輪１によると
、潤滑部３の材質であるＣＲ及びＮＢＲは極性基を有し
ており、非極性の石油系プロセス油とは溶解性パラメー
ター（ＳＰ値）に差があり、それゆえ相溶性が低い。従
って石油系プロセス油を相溶性以上に混入することによ
って非極性である石油系プロセス油を長期にわたって持
続的に滲出させることができる。Therefore, according to the sealing rubber ring 1 according to the embodiment described above, CR and NBR, which are the materials of the lubricating part 3, have polar groups and are different from non-polar petroleum process oil in solubility parameter (SP value). There is a difference and therefore low compatibility. Therefore, by mixing petroleum-based process oil in an amount greater than the compatibility, the non-polar petroleum-based process oil can be continuously exuded over a long period of time.
すなわち、一方及び他方の管体５ａ、５ｂの接合の際に
シール用ゴム輪１等に潤滑剤を塗布しなくても、シール
用ゴム輪１自体に潤滑性があるため、容易に管体の接合
を行うことができ且つシール用ゴム輪の脱落もなく容易
に管継手を構成することができる。That is, even if no lubricant is applied to the sealing rubber ring 1 etc. when joining the one and the other tube bodies 5a and 5b, the sealing rubber ring 1 itself has lubricity, so the tube bodies can be easily removed. It is possible to perform the joining and to easily construct a pipe joint without the sealing rubber ring falling off.
本実施例では、シール用ゴム輪１の固定部２の断面形状
が略台形状に形成されている例について述べたが、この
形状に限定されることはない。例えば第２図に示すよう
に、一部が切欠された円形状のシール用ゴム輪１１でも
よく、このような形状の場合、第３図に示すように自在
継手８の管受口部材９の内周面９ａに装着することもで
きる。In this embodiment, an example has been described in which the fixing portion 2 of the sealing rubber ring 1 has a substantially trapezoidal cross-sectional shape, but the shape is not limited to this shape. For example, as shown in FIG. 2, it may be a circular sealing rubber ring 11 with a part cut out. In the case of such a shape, as shown in FIG. It can also be attached to the inner peripheral surface 9a.
また、第４図に示すように、鋸歯形状の潤滑部２３と板
状の固定部２２で構成されたシール用ゴム輪２１を、ヒ
ユーム管ｌＯの挿口１０ａ外周に装着し、この挿口をヒ
ユーム管１０の受口１０ｂに挿入することで接合しても
、前述と同様の効果が得ら゛れる。Further, as shown in FIG. 4, a sealing rubber ring 21 composed of a sawtooth-shaped lubricating part 23 and a plate-shaped fixing part 22 is attached to the outer periphery of the insertion port 10a of the humid tube IO, and this insertion port is The same effect as described above can be obtained even if the tube is connected by being inserted into the socket 10b of the hume tube 10.
また、上記各実施例において、固定部２と潤滑部３の間
に、シリコン系ゴム等のＶ＃膜を介設することもできる
。このような構成とすることにより、石油系プロセス油
の潤滑部から固定部への移行を阻止することができ、長
期の保存が可能となる。Further, in each of the above embodiments, a V# film made of silicone rubber or the like may be interposed between the fixing part 2 and the lubricating part 3. With such a configuration, it is possible to prevent petroleum process oil from migrating from the lubricating part to the fixed part, allowing long-term storage.
以上説明したように本発明によるシール用ゴム輪は、潤
滑剤がシール用ゴム輪の自己潤滑性を有するゴム質材料
よりなる潤滑部から滲出するので、潤滑剤の塗布は不要
となり、管体の受口と挿口との接合が容易に行え、しか
もシール用ゴム輪の固定部の摩擦力により接合の際シー
ル用ゴム輪が脱落することがないという優れた効果があ
る。As explained above, in the sealing rubber ring according to the present invention, the lubricant exudes from the lubricant part of the sealing rubber ring made of a self-lubricating rubber material, so there is no need to apply lubricant, and the pipe body There is an excellent effect that the socket and the socket can be easily joined together, and the sealing rubber ring does not fall off during joining due to the frictional force of the fixed portion of the sealing rubber ring.
すなわち、潤滑剤は潤滑部からのみ滲出するため、管体
の接合の際に、シール用ゴム輪が脱落せず、末生使用に
よっても管継手のシール部が劣化するということはない
。That is, since the lubricant oozes out only from the lubricated portion, the sealing rubber ring will not fall off when the pipe bodies are joined, and the seal portion of the pipe joint will not deteriorate even after long-term use.
第１図は本発明によるシール用ゴム輪を有する管継手の
一実施例を示す一部省略側断面図、第２図は他の実施例
によるシール用ゴム輪を有する管継手の側断面図、第３
図は同実施例によるシール用ゴム輪の自在継手への装着
状態側断面図、第４図は他の実施例によるシール用ゴム
輪のヒユーム管への装着状態側断面図である。
１．１１．２１−シール用ゴム輪、
２・−固定部、 ３−潤滑部、 ６・−受口、７−挿口
。FIG. 1 is a partially omitted side sectional view showing one embodiment of a pipe joint having a sealing rubber ring according to the present invention, and FIG. 2 is a side sectional view of a pipe joint having a sealing rubber ring according to another embodiment. Third
FIG. 4 is a sectional side view of a sealing rubber ring according to the same embodiment in a state where it is attached to a universal joint, and FIG. 4 is a side sectional view of a sealing rubber ring according to another embodiment in a state where it is attached to a fume pipe. 1.11.21 - Seal rubber ring, 2 - Fixing part, 3 - Lubrication part, 6 - Socket, 7 - Socket.
Claims (1)
自己潤滑性を有しないゴム質材料よりなる固定部が二重
層状に結合されていることを特徴とするシール用ゴム輪
。 ２、一方の管体の受口又は挿口に、他方の管体の挿口又
は受口を挿入して構成され、前記一方の管体の他方の管
体に接する側の壁面にはシール用ゴム輪が設けられてな
る管継手において、 前記シール用ゴム輪は、その前記一方の管体の壁面に接
する側の半部が自己潤滑性を有しないゴム質材料よりな
る固定部とされ、他方の管体の壁面に接する側の半部が
自己潤滑性を有するゴム質材料よりなる潤滑部とされ、
該固定部と潤滑部とが二重層状に結合されてなることを
特徴とする管継手。[Claims] 1. A lubricating part made of a rubbery material having self-lubricating properties;
A rubber ring for sealing, characterized in that a fixed part made of a rubber material that does not have self-lubricating properties is bonded in a double layer. 2. It is constructed by inserting the socket or socket of one pipe body into the socket or socket of the other pipe body, and the wall surface of the side of said one pipe body in contact with the other pipe body is provided with a sealing material. In a pipe joint provided with a rubber ring, the sealing rubber ring has a fixed part made of a rubber material that does not have self-lubricating properties, and a half part of the sealing rubber ring that contacts the wall surface of the one pipe body is a fixed part made of a rubber material that does not have self-lubricating properties. The half of the tube in contact with the wall surface is a lubricating part made of a rubbery material with self-lubricating properties,
A pipe joint characterized in that the fixing part and the lubricating part are combined in a double layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1199376A JP2719197B2 (en) | 1989-08-02 | 1989-08-02 | Rubber rings and pipe fittings for sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1199376A JP2719197B2 (en) | 1989-08-02 | 1989-08-02 | Rubber rings and pipe fittings for sealing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0366994A true JPH0366994A (en) | 1991-03-22 |
| JP2719197B2 JP2719197B2 (en) | 1998-02-25 |
Family
ID=16406733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1199376A Expired - Fee Related JP2719197B2 (en) | 1989-08-02 | 1989-08-02 | Rubber rings and pipe fittings for sealing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2719197B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04116067U (en) * | 1991-03-29 | 1992-10-15 | キーパー株式会社 | Seal ring |
| JPH0669570U (en) * | 1993-03-16 | 1994-09-30 | 株式会社栗本鐵工所 | Cast iron pipe joint structure for hot water pipeline |
| JP2020148286A (en) * | 2019-03-14 | 2020-09-17 | 積水化学工業株式会社 | Rubber ring and piping member using it |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59172888U (en) * | 1983-05-07 | 1984-11-19 | 三菱樹脂株式会社 | pipe fittings |
-
1989
- 1989-08-02 JP JP1199376A patent/JP2719197B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59172888U (en) * | 1983-05-07 | 1984-11-19 | 三菱樹脂株式会社 | pipe fittings |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04116067U (en) * | 1991-03-29 | 1992-10-15 | キーパー株式会社 | Seal ring |
| JPH0669570U (en) * | 1993-03-16 | 1994-09-30 | 株式会社栗本鐵工所 | Cast iron pipe joint structure for hot water pipeline |
| JP2020148286A (en) * | 2019-03-14 | 2020-09-17 | 積水化学工業株式会社 | Rubber ring and piping member using it |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2719197B2 (en) | 1998-02-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |