JP2001254832A - Rubber packing for pipe coupling and pipe coupling using the same - Google Patents
Rubber packing for pipe coupling and pipe coupling using the sameInfo
- Publication number
- JP2001254832A JP2001254832A JP2000069566A JP2000069566A JP2001254832A JP 2001254832 A JP2001254832 A JP 2001254832A JP 2000069566 A JP2000069566 A JP 2000069566A JP 2000069566 A JP2000069566 A JP 2000069566A JP 2001254832 A JP2001254832 A JP 2001254832A
- Authority
- JP
- Japan
- Prior art keywords
- packing
- pipe joint
- molding die
- pipe
- rubber packing
- 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.)
- Pending
Links
Landscapes
- Joints With Pressure Members (AREA)
- Gasket Seals (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、樹脂管または金属
管を接続するための管継手用ゴムパッキン及びそれを用
いた管継手に関するものである。The present invention relates to a rubber packing for a pipe joint for connecting a resin pipe or a metal pipe and a pipe joint using the same.
【０００２】[0002]
【従来の技術】従来、図７に示すように、継手本体内に
パッキンＡを装着して接続管とシールする管継手があ
る。パッキンＡは図のように一旦側に凹部を有す断面が
略横Ｖ字形の環状パッキンである。このパッキンＡは、
管内の流体圧力によって流体がパッキンＡの凹部の横Ｖ
形内に進入し、流体圧力がパッキンの横Ｖ形断面を外径
側と内径側に拡げる方向に作用し、パッキンＡの継手内
周面とと管外周面とのシール性能を発揮するものであ
る。2. Description of the Related Art Conventionally, as shown in FIG. 7, there is a pipe joint in which a packing A is mounted in a joint body to seal with a connection pipe. The packing A is an annular packing having a substantially V-shaped cross section having a recess on the side once as shown in the figure. This packing A
Due to the fluid pressure in the pipe, the fluid moves V
Into the mold, the fluid pressure acts in the direction that expands the lateral V-shaped cross section of the packing to the outside diameter side and the inside diameter side, and exhibits the sealing performance between the joint inner peripheral surface of the packing A and the pipe outer peripheral surface. is there.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら通常、こ
のようなパッキンＡの成形は、パッキンＡを成形型内か
ら取り出し易いよう、図９で示すに成形型Ｄ，Ｅの割面
を最大外径と最小内径部分に設けた成形型で成型され
る。このため成形型内にゴムを射出成型する際、割面部
分にバリＢ，Ｃが張り出して成形される。バリＢ，Ｃは
通常成形した後、手作業等で取り除かれるが、完全に無
くすことは出来ず、図８のごとく成形されたパッキンＡ
にバリＢ，Ｃが残る。しかもこのバリＢ，Ｃの大きさが
均一ではない。Normally, however, such a molding of the packing A is performed by setting the split surfaces of the molding dies D and E to have the maximum outer diameter as shown in FIG. 9 so that the packing A can be easily taken out from the molding die. It is molded with a mold provided at the minimum inner diameter part. For this reason, when rubber is injection-molded in a molding die, burrs B and C are formed so as to protrude from the split surface portion. The burrs B and C are usually removed manually after molding, but they cannot be completely removed, and the packing A formed as shown in FIG.
Burrs B and C remain. Moreover, the sizes of the burrs B and C are not uniform.
【０００４】図８のごとくバリが形成されたパッキンＡ
を、図７のごとく管継手内に装着した場合、バリＢが継
手の内周面に当接し、バリＣが接続管の外周面に当接す
る。従って、継手と管の当接部にバリＢ，Ｃがあり、シ
ール位置と一致するため、バリの影響によってシール性
能が低下する。このバリはパッキンＡを量産時に次第に
成形型が摩耗するので大きくなり、手作業で取り除いて
も均一でなく、シール性能に影響を及ぼすため成形型を
頻繁に更新する必要がある。本発明の目的は、バリ生じ
てもシール性能に影響を及ぼさない管継手用ゴムパッキ
ン及びそれを用いた管継手を提供するものである。A packing A on which burrs are formed as shown in FIG.
Is mounted in the pipe joint as shown in FIG. 7, the burr B contacts the inner peripheral surface of the joint, and the burr C contacts the outer peripheral surface of the connection pipe. Therefore, the burrs B and C are present at the abutting portions of the joint and the pipe and coincide with the sealing position. The burrs become large because the mold gradually wears out during the mass production of the packing A, and the burrs are not uniform even if they are manually removed. The burrs affect the sealing performance, so the mold needs to be updated frequently. An object of the present invention is to provide a rubber joint for a pipe joint which does not affect the sealing performance even if burrs are formed, and a pipe joint using the same.
【０００５】[0005]
【課題を解決するための手段】本発明の要旨は、管継手
に装着する環状のシール用ゴムパッキンであって、前記
管継手の内面に当接する環状シール部分又は接続管の外
面に当接する環状シール部分が、パッキンを成形する際
の成形型の割面を除く位置の成形型内で成形されるよう
に設けてあることを特徴とする管継手用ゴムパッキンで
ある。また、管継手に装着する環状のシール用ゴムパッ
キンであって、該パッキンを成形する成形型の割面が前
記パッキンの最大径又は最小径を除いた部分に設けた成
形型によって成形されたことを特徴とする管継手用ゴム
パッキンである。SUMMARY OF THE INVENTION The gist of the present invention is to provide an annular sealing rubber packing to be mounted on a pipe joint, wherein the annular sealing portion is in contact with an inner surface of the pipe joint or an annular seal is in contact with an outer surface of a connecting pipe. A rubber packing for a pipe joint, wherein a sealing portion is provided in a molding die at a position other than a split surface of a molding die at the time of molding the packing. In addition, an annular sealing rubber packing to be attached to a pipe joint, wherein a split surface of a forming die for forming the packing is formed by a forming die provided in a portion excluding a maximum diameter or a minimum diameter of the packing. A rubber packing for a pipe joint characterized by the above-mentioned.
【０００６】また、管継手に装着する断面が概略横Ｖ字
形の一端側に凹部を有す環状のゴムパッキンにおいて、
管継手の内周面に当接する外周側の環状シール部分又は
接続管の外周面に当接する内周側の環状シール部分が、
成形型の割面によって生じるバリの高さよりも高い位置
に前記成形型内で成型されるように設けたことを特徴と
する管継手用ゴムパッキンである。また、管継手に装着
する断面が概略横Ｖ字形の一端側に凹部を有す環状のゴ
ムパッキンにおいて、管継手の内周面に当接する外周側
の環状シール部分及び接続管の外周面に当接する内周側
の環状シール部分が、成形型の割面によって生じるバリ
の高さよりも高い位置に前記成形型内で成型されるよう
に設けたことを特徴とする管継手用ゴムパッキンであ
る。[0006] Further, in a ring-shaped rubber packing having a concave portion at one end of a substantially V-shaped cross section to be mounted on a pipe joint,
The annular seal portion on the outer peripheral side abutting on the inner peripheral surface of the pipe joint or the annular seal portion on the inner peripheral side abutting on the outer peripheral surface of the connection pipe,
A rubber packing for a pipe joint, provided so as to be molded in the molding die at a position higher than a height of a burr generated by a split surface of the molding die. In addition, in an annular rubber packing having a concave portion on one end side having a substantially horizontal V-shaped cross section, the annular seal portion on the outer peripheral side which comes into contact with the inner peripheral surface of the pipe joint and the outer peripheral surface of the connection pipe are attached to the pipe joint. A rubber packing for a pipe joint, wherein an annular seal portion on an inner peripheral side in contact with the rubber seal is provided at a position higher than a height of a burr generated by a split surface of the mold in the mold.
【０００７】また、管継手に装着する断面が概略横Ｖ字
形の一端側に凹部を有す環状のゴムパッキンにおいて、
管継手の内周面に当接する外周側の環状シール部分又は
接続管の外周面に当接する内周側の環状シール部分が、
成形型の割面によって生じるバリの高さよりも高い位置
に前記成形型内で成型されるように設けると共に、前記
略横Ｖ字形の凹部内面側の勾配を横Ｖ字形外周側の勾配
と同じか大きく形成したことを特徴とする管継手用ゴム
パッキンである。また、管継手の内面に当接する環状シ
ール部分又は接続管の外面に当接する環状シール部分
が、パッキンを成形する際の成形型の割面を除く位置の
成形型内で成形されたゴムパッキンを用いて、継手内に
挿入した接続管とシールするようにしたことを特徴とす
る管継手である。[0007] Further, in a ring-shaped rubber packing having a concave portion at one end having a substantially V-shaped cross section to be mounted on a pipe joint,
The annular seal portion on the outer peripheral side abutting on the inner peripheral surface of the pipe joint or the annular seal portion on the inner peripheral side abutting on the outer peripheral surface of the connection pipe,
It is provided so as to be molded in the molding die at a position higher than the height of the burr generated by the split surface of the molding die, and the gradient on the inner surface side of the substantially V-shaped concave portion is the same as the gradient on the outer peripheral side of the V-shaped shape. A rubber packing for a pipe joint characterized by being formed large. In addition, the annular seal portion abutting on the inner surface of the pipe joint or the annular seal portion abutting on the outer surface of the connection pipe has a rubber packing molded in a molding die at a position other than a split surface of the molding die when molding the packing. A pipe joint characterized by being used to seal with a connecting pipe inserted into the joint.
【０００８】[0008]
【作用】本発明は上記の構成であっていずれにおいて
も、成形されたパッキンは、成形時に成形型の割面に張
出して生じるバリの高さよりも高い環状シール部分が成
形型内で成形される。従って環状パッキンの最大外径あ
るいは最小内径の環状シール部分にバリが生じなく、成
形型で成形された均一な環状部分で継手本体内面又は管
の外周面と当接するので、バリによるシール性能の影響
が生じない。The present invention has the above-mentioned structure, and in any case, in the molded packing, an annular seal portion higher than the height of a burr generated by projecting on the split surface of the molding die during molding is molded in the molding die. . Therefore, no burrs are formed on the annular seal portion having the maximum outer diameter or the minimum inner diameter of the annular packing, and the uniform annular portion formed by the molding die abuts the inner surface of the joint body or the outer peripheral surface of the pipe. Does not occur.
【０００９】断面が概略横Ｖ字形の一端側に凹部を有す
パッキンにおいても同様で、リップシールする一旦側横
Ｖ時断面の凹部開口端面にバリがなく、継手内面又は管
の外周面に当接する最大外径部分あるいは最小内径部分
が成形型で成形される。従って継手又は管と当接する部
分は均一な環状に成形されており、バリがないためシー
ル性能が良好でバリの影響が生じない。またパッキンの
成形型に生じる逆勾配部は、横Ｖ字形凹部内面側の勾配
を逆勾配部の勾配と同じか大きい角度に設けたパッキン
とすることで、成形した後の離型が容易に行え、成形作
業が容易に行える。また上記の管継手用ゴムパッキンを
用いることによって、パッキンのバリに影響されない良
好なシール性を得る管継手が得られる。The same applies to a packing having a cross section having a substantially V-shaped cross section and having a recess at one end side. There is no burr on the opening end face of the cross section at the time of the side V, which is to be lip-sealed, and it is applied to the inner surface of the joint or the outer peripheral surface of the pipe. The largest outer diameter part or the smallest inner diameter part that is in contact is formed by a mold. Therefore, the portion in contact with the joint or the pipe is formed in a uniform annular shape, and since there is no burr, the sealing performance is good and the influence of the burr does not occur. In addition, the reverse slope portion generated in the molding die of the packing can be easily released after molding by forming the packing on the inner surface side of the V-shaped concave portion at the same or larger angle as the slope of the reverse slope portion. In addition, the molding operation can be easily performed. Further, by using the above rubber packing for a pipe joint, it is possible to obtain a pipe joint which is not affected by burrs of the packing and has good sealing properties.
【００１０】[0010]
【実施例】以下本発明の実施例を図面に基づいて説明す
る。図１は本発明の一実施例のパッキン１０を組付けた
状態を示す管継手の部分断面図である。継手本体２０は
端部内面に管装着部２２とパッキン室２１を有し、接続
管５０をパッキン室２１に挿入した後、パッキン室２１
にパッキン１０とカラー３０を装着してナット４０を継
手本体２０に螺合し、接続管５０と接続される。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partial sectional view of a pipe joint showing a state where a packing 10 according to an embodiment of the present invention is assembled. The joint body 20 has a pipe mounting portion 22 and a packing chamber 21 on the inner surface of the end. After the connecting pipe 50 is inserted into the packing chamber 21, the packing chamber 21 is inserted.
The nut 10 is screwed into the joint body 20, and the connection pipe 50 is connected to the connection pipe 50.
【００１１】パッキン１０の断面を図２に示し、パッキ
ン室２１の奥壁２３側にパッキンの凹部開口部が向くよ
うに装着される。パッキン１０は図３に示す成形型６
０，６１によってゴム材料を射出成形して形成される。
成型型６０，６１の外周側割面６２は成形するパッキン
１０の最大外径部１３を除く開口端部６２に設け、また
内周側割面６３はパッキン１０の最小内径部１４を除い
た内周部６３に設けてある。従って割面６２，６３に成
形時のバリ１１，１２が発生したとしても、外周側のバ
リ１１より大径の環状突部１３が設けられており、また
内周側のバリ１２より小径の環状突部１４が設けられて
おり、この外周側の最大外径部がパッキンの環状シール
１３、内周側の最小内径部がパッキンの環状シール部１
４となり、夫々継手のパッキン室内周面２１と接続管５
０の外周面に当接してシールする。従って、この環状シ
ール面１３，１４は、内外周面に生じたバリ１１，１２
よりも高い位置にあり、成型時に生じたバリによる悪影
響が除かれる。A cross section of the packing 10 is shown in FIG. 2, and the packing 10 is mounted on the back wall 23 side of the packing chamber 21 so that the opening of the concave portion of the packing faces. The packing 10 is a mold 6 shown in FIG.
0,61 is formed by injection molding a rubber material.
The outer split surface 62 of the molding dies 60 and 61 is provided at the opening end 62 excluding the maximum outer diameter portion 13 of the packing 10 to be molded, and the inner split surface 63 is formed inside the packing 10 excluding the minimum inner diameter portion 14. It is provided on the peripheral portion 63. Therefore, even if the burrs 11 and 12 are formed on the split surfaces 62 and 63 during molding, the annular projection 13 having a larger diameter than the outer burr 11 is provided, and the annular protrusion 13 having a smaller diameter than the inner burr 12 is formed. A projection 14 is provided, and the outermost maximum outer diameter portion is a packing annular seal 13, and the innermost minimum inner diameter portion is a packing annular seal portion 1.
4 and the connecting packing inner peripheral surface 21 and the connecting pipe 5 respectively.
0 to seal against the outer peripheral surface. Therefore, the annular sealing surfaces 13 and 14 are formed by burrs 11 and 12 generated on the inner and outer peripheral surfaces.
Higher than the above, eliminating the adverse effects of burrs generated during molding.
【００１２】図４は本発明の別の実施例であり、成形時
の状況を示す部分断面図である。この例ではパッキンを
成形する成形型６０、６１の外周側の割面６２と内周側
の割面６３をパッキン１０の両端面間の中間部分とし、
この割面にバリ１１，１２が発生しても、パッキン１０
のＶ字形断面開口側端面に近い部分に最大外径部１３及
び最大内径部１４があり、この最大外径部１３、最小内
径部が接続時のシール面となるのでバリ１１，１２によ
るシールの悪影響が除かれる。FIG. 4 is a partial sectional view showing another embodiment of the present invention and shows a state at the time of molding. In this example, the outer circumferential side split surface 62 and the inner circumferential side split surface 63 of the molding dies 60 and 61 for forming the packing are defined as intermediate portions between both end surfaces of the packing 10,
Even if burrs 11 and 12 are generated on the split surface, the packing 10
There is a maximum outer diameter portion 13 and a maximum inner diameter portion 14 near the V-shaped cross-section opening side end surface, and the maximum outer diameter portion 13 and the minimum inner diameter portion serve as sealing surfaces at the time of connection. The adverse effects are eliminated.
【００１３】また図４において成形型６１にはパッキン
１０の外周側１５及び内周側１７にパッキン１０を離型
する際の逆勾配部が生じる。この逆勾配部があっても離
型が可能なように、本実施例では外周側逆勾配部１５の
勾配よりも横Ｖ字形凹部内面側の勾配部１６を少なくと
も同じか大きくしてある。また内周側も同様に、内周側
逆勾配部１７の勾配より横Ｖ字形凹部内側の勾配部１８
を同じか大きくしてある。これによってパッキン１０を
成形した後、成形型６１からパッキン１０を抜型する
際、パッキン１０の形状を大きく崩すことなく離型が行
え、従ってパッキンの成形製造作業が容易に行える。In FIG. 4, the molding die 61 has reverse slope portions on the outer peripheral side 15 and the inner peripheral side 17 of the packing 10 when the packing 10 is released. In this embodiment, the slope 16 on the inner surface side of the V-shaped concave portion is at least equal to or larger than the slope of the outer slope 15 in order to release the mold even if the reverse slope is present. Similarly, on the inner peripheral side, the gradient portion 18 inside the V-shaped concave portion is more inclined than the gradient of the inner peripheral side reverse gradient portion 17.
Is the same or larger. As a result, when the packing 10 is removed from the molding die 61 after the packing 10 is formed, the release can be performed without greatly deforming the shape of the packing 10, and therefore, the molding manufacturing operation can be easily performed.
【００１４】図５は本発明の別の実施例であり、成形型
と型内で成型されるパッキン１０断面を示す部分断面図
である。この例では成形型６０、６１の内周側割面６３
をパッキン１０のＶ字形断面の開口端面に設け、最小内
径部１４より少し大径位置に設け、外周側の割面６２は
図４と同様に設けたものである。前記実施例と同様、割
面６２，６３にバリ１１，１２が発生しても、これより
高く突出する位置に最大外径部１３と最小内径部１４が
あり、この最大外径部、最小内径部が継手２０と接続管
５０に接する環状シール面となるので、バリの発生によ
る悪影響がなく、良好なシール性が得られる。FIG. 5 shows another embodiment of the present invention, and is a partial sectional view showing a molding die and a cross section of the packing 10 molded in the die. In this example, the inner peripheral side split surface 63 of the molds 60 and 61 is used.
Is provided on the opening end face of the V-shaped cross section of the packing 10, provided at a position slightly larger in diameter than the minimum inner diameter portion 14, and the split surface 62 on the outer peripheral side is provided in the same manner as in FIG. 4. As in the previous embodiment, even if the burrs 11 and 12 are generated on the split surfaces 62 and 63, the maximum outer diameter portion 13 and the minimum inner diameter portion 14 are located at positions protruding higher than the burrs 11 and 12, and the maximum outer diameter portion and the minimum inner diameter portion are provided. Since the portion is an annular sealing surface in contact with the joint 20 and the connection pipe 50, there is no adverse effect due to the generation of burrs, and good sealing properties can be obtained.
【００１５】図６は本発明の更に別の実施例を示し、こ
の実施例ではパッキン１０の断面が真円のＯリングであ
る。この場合も前記実施例と同様に、パッキンを成形す
る成形型６０、６１の外周側割面６２と内周側割面６３
を、パッキン１０の最大外径部１３及び最小内径部１４
を除く低い位置に設けてある。従ってこの割面６２，６
３にバリ１１，１２が発生しても最大外径部１３、最小
内径部１４が管継手内に装着して接続管と接続する際の
環状シール面１１，１２となるので、バリ１１，１２に
よるシールの悪影響が除かれる。FIG. 6 shows still another embodiment of the present invention. In this embodiment, the cross section of the packing 10 is a perfect circle O-ring. Also in this case, similarly to the above-described embodiment, the outer peripheral side split surface 62 and the inner peripheral side split surface 63 of the molding dies 60 and 61 for molding the packing.
With the largest outer diameter part 13 and the smallest inner diameter part 14 of the packing 10.
It is provided at a lower position except for. Therefore, the split surfaces 62, 6
Even if burrs 11 and 12 are generated on the outer surface 3, the maximum outer diameter portion 13 and the minimum inner diameter portion 14 become the annular sealing surfaces 11 and 12 when mounted in the pipe joint and connected to the connection pipe. This eliminates the adverse effects of the seal.
【００１６】[0016]
【発明の効果】本発明の管継手用ゴムパッキンは、パッ
キンに生じたバリによるシール性能の影響をなくし、シ
ール性が良いパッキンを得る。またバリによる影響がな
いため、パッキン成形型の寿命を大巾に延ばすことが出
来る。また成形型に逆勾配部があっても離型が容易であ
る。The rubber packing for a pipe joint according to the present invention eliminates the influence of sealing performance due to burrs generated in the packing, and obtains a packing with good sealing properties. Also, since there is no influence of burrs, the life of the packing mold can be greatly extended. Also, even if the mold has an inversely sloped portion, it is easy to release the mold.
【図１】 本発明の一実施例の管継手と管継手内に装着
したパッキンの管との接続部を示す断面図である。FIG. 1 is a cross-sectional view showing a connection portion between a pipe joint according to an embodiment of the present invention and a pipe of a packing mounted in the pipe joint.
【図２】 図１のパッキンを示す部分断面図である。FIG. 2 is a partial sectional view showing the packing of FIG.
【図３】 図１，図２に示すパッキンを成形する成形型
を示す部分断面図である。FIG. 3 is a partial sectional view showing a molding die for molding the packing shown in FIGS. 1 and 2;
【図４】 別の実施例のパッキンと成形型を示す部分断
面図である。FIG. 4 is a partial sectional view showing a packing and a mold according to another embodiment.
【図５】 別の実施例のパッキンと成形型を示す部分断
面図である。FIG. 5 is a partial sectional view showing a packing and a mold according to another embodiment.
【図６】 別の実施例のパッキンと成形型を示す部分断
面図である。FIG. 6 is a partial sectional view showing a packing and a mold according to another embodiment.
【図７】 従来の管継手接続部を示す部分断面図であ
る。FIG. 7 is a partial cross-sectional view showing a conventional pipe joint connection portion.
【図８】 従来のパッキンを示す部分断面図である。FIG. 8 is a partial sectional view showing a conventional packing.
【図９】 従来のパッキンの成形型を示す部分断面図で
ある。FIG. 9 is a partial sectional view showing a conventional packing mold.
１０ パッキン １１，１２
バリ １３，１４ 環状シール部 １５，１７
逆勾配部 １６，１８ 凹部内側の勾配部 ２０ 継手
本体 ２１パッキン室 ２２ 管装
着部 ３０ カラー ４０ ナッ
ト ６０，６１ 成形型 ６２，６３
割面10 Packing 11, 12
Burrs 13,14 Annular seal parts 15,17
Inverted slope portion 16, 18 Inclined portion inside recess 20 Joint body 21 Packing chamber 22 Pipe mounting portion 30 Collar 40 Nut 60, 61 Mold 62, 63
Split face
Claims (6)
パッキンであって、前記管継手の内面に当接する環状シ
ール部分又は接続管の外面に当接する環状シール部分
が、パッキンを成形する際の成形型の割面を除く位置の
成形型内で成形されるように設けてあることを特徴とす
る管継手用ゴムパッキン。1. An annular sealing rubber packing mounted on a pipe joint, wherein an annular sealing portion abutting on an inner surface of the pipe joint or an annular sealing portion abutting on an outer surface of a connecting pipe is used when forming the packing. A rubber packing for a pipe joint, which is provided so as to be formed in a molding die at a position other than a split surface of the molding die.
パッキンであって、該パッキンを成形する成形型の割面
が前記パッキンの最大径又は最小径を除いた部分に設け
た成形型によって成形されたことを特徴とする管継手用
ゴムパッキン。2. An annular rubber packing for a seal to be mounted on a pipe joint, wherein a molding die for molding the packing is formed by a molding die provided at a portion other than a maximum diameter or a minimum diameter of the packing. Rubber packing for fittings.
の一端側に凹部を有す環状のゴムパッキンにおいて、管
継手の内周面に当接する外周側の環状シール部分又は接
続管の外周面に当接する内周側の環状シール部分が、成
形型の割面によって生じるバリの高さよりも高い位置に
前記成形型内で成型されるように設けたことを特徴とす
る管継手用ゴムパッキン。3. An annular rubber packing having a substantially V-shaped cross section and having a concave portion at one end side attached to a pipe joint, wherein an outer peripheral annular seal portion abuts an inner peripheral surface of the pipe joint or an outer periphery of a connection pipe. A rubber packing for a pipe joint, wherein an inner peripheral annular seal portion abutting against a surface is provided in the molding die at a position higher than a height of a burr generated by a split surface of the molding die. .
の一端側に凹部を有す環状のゴムパッキンにおいて、管
継手の内周面に当接する外周側の環状シール部分及び接
続管の外周面に当接する内周側の環状シール部分が、成
形型の割面によって生じるバリの高さよりも高い位置に
前記成形型内で成型されるように設けたことを特徴とす
る管継手用ゴムパッキン。4. An annular rubber packing having a substantially V-shaped cross section and having a concave portion at one end side attached to a pipe joint, an outer peripheral annular seal portion abutting an inner peripheral surface of the pipe joint, and an outer periphery of a connection pipe. A rubber packing for a pipe joint, wherein an inner peripheral annular seal portion abutting against a surface is provided in the molding die at a position higher than a height of a burr generated by a split surface of the molding die. .
の一端側に凹部を有す環状のゴムパッキンにおいて、管
継手の内周面に当接する外周側の環状シール部分又は接
続管の外周面に当接する内周側の環状シール部分が、成
形型の割面によって生じるバリの高さよりも高い位置に
前記成形型内で成型されるように設けると共に、前記略
横Ｖ字形の凹部内面側の勾配を横Ｖ字形外周側の勾配と
同じか大きく形成したことを特徴とする管継手用ゴムパ
ッキン。5. An annular rubber packing having a substantially V-shaped cross section and having a concave portion at one end side attached to a pipe joint, an outer peripheral annular seal portion abutting an inner peripheral surface of the pipe joint or an outer periphery of a connection pipe. An annular seal portion on the inner peripheral side that contacts the surface is provided so as to be molded in the molding die at a position higher than the height of a burr generated by the split surface of the molding die, and the substantially horizontal V-shaped concave inner surface side is provided. Characterized in that the inclination of the rubber packing is equal to or greater than the inclination of the outer periphery of the V-shape.
分又は接続管の外面に当接する環状シール部分が、パッ
キンを成形する際の成形型の割面を除く位置の成形型内
で成形されたゴムパッキンを用いて、継手内に挿入した
接続管とシールするようにしたことを特徴とする管継
手。6. An annular seal portion abutting on an inner surface of a pipe joint or an annular seal portion abutting on an outer surface of a connecting pipe is formed in a molding die at a position other than a split surface of a molding die when molding a packing. A pipe joint characterized by using rubber packing to seal with a connecting pipe inserted into the joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000069566A JP2001254832A (en) | 2000-03-14 | 2000-03-14 | Rubber packing for pipe coupling and pipe coupling using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000069566A JP2001254832A (en) | 2000-03-14 | 2000-03-14 | Rubber packing for pipe coupling and pipe coupling using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001254832A true JP2001254832A (en) | 2001-09-21 |
Family
ID=18588415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000069566A Pending JP2001254832A (en) | 2000-03-14 | 2000-03-14 | Rubber packing for pipe coupling and pipe coupling using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001254832A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004018906A1 (en) * | 2002-08-20 | 2004-03-04 | Nok Corporation | Gasket |
| JP2004245299A (en) * | 2003-02-13 | 2004-09-02 | Nok Corp | Sealing device |
| JP2006105285A (en) * | 2004-10-06 | 2006-04-20 | Bridgestone Flowtech Corp | Coupler |
| EP1967773A1 (en) * | 2007-03-07 | 2008-09-10 | Le Joint Francais | Y-Seal, method of manufacturing such a seal and its use to reduce the forces for fitting a connector |
| JP2010091074A (en) * | 2008-10-10 | 2010-04-22 | Seiko Epson Corp | Flow passage connection joint |
| JP2015218872A (en) * | 2014-05-21 | 2015-12-07 | Nok株式会社 | X ring molding die and x ring manufacturing method, and x ring |
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|---|---|---|---|---|
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| JPH0349466U (en) * | 1989-09-20 | 1991-05-14 | ||
| JPH0486736U (en) * | 1990-11-30 | 1992-07-28 | ||
| JPH06213326A (en) * | 1993-01-21 | 1994-08-02 | Seiko Epson Corp | Waterproof packing for small portable apparatus |
| JPH074958U (en) * | 1993-06-21 | 1995-01-24 | 株式会社エム・エス・ジャパン | Annular packing |
| JPH07317904A (en) * | 1994-05-27 | 1995-12-08 | Kokusai Electric Co Ltd | Seal ring |
| JPH09189361A (en) * | 1996-01-08 | 1997-07-22 | Mitsubishi Heavy Ind Ltd | Sealing mechanism of flange joint |
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2000
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS619687U (en) * | 1984-06-22 | 1986-01-21 | 三菱重工業株式会社 | mechanical fittings |
| JPH0349466U (en) * | 1989-09-20 | 1991-05-14 | ||
| JPH0486736U (en) * | 1990-11-30 | 1992-07-28 | ||
| JPH06213326A (en) * | 1993-01-21 | 1994-08-02 | Seiko Epson Corp | Waterproof packing for small portable apparatus |
| JPH074958U (en) * | 1993-06-21 | 1995-01-24 | 株式会社エム・エス・ジャパン | Annular packing |
| JPH07317904A (en) * | 1994-05-27 | 1995-12-08 | Kokusai Electric Co Ltd | Seal ring |
| JPH09189361A (en) * | 1996-01-08 | 1997-07-22 | Mitsubishi Heavy Ind Ltd | Sealing mechanism of flange joint |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004018906A1 (en) * | 2002-08-20 | 2004-03-04 | Nok Corporation | Gasket |
| US7389992B2 (en) | 2002-08-20 | 2008-06-24 | Nok Corporation | Gasket for hard disc drive having compressible lip and extension portion at screw fixing/inflection portions |
| JP2004245299A (en) * | 2003-02-13 | 2004-09-02 | Nok Corp | Sealing device |
| JP2006105285A (en) * | 2004-10-06 | 2006-04-20 | Bridgestone Flowtech Corp | Coupler |
| JP4583862B2 (en) * | 2004-10-06 | 2010-11-17 | ブリヂストンフローテック株式会社 | Coupler |
| EP1967773A1 (en) * | 2007-03-07 | 2008-09-10 | Le Joint Francais | Y-Seal, method of manufacturing such a seal and its use to reduce the forces for fitting a connector |
| US8596646B2 (en) | 2007-03-07 | 2013-12-03 | Le Joint Francais | Y-shaped gasket, a method of fabricating such a gasket, and the use of such a gasket for reducing the engagement forces of a connector |
| JP2010091074A (en) * | 2008-10-10 | 2010-04-22 | Seiko Epson Corp | Flow passage connection joint |
| JP2015218872A (en) * | 2014-05-21 | 2015-12-07 | Nok株式会社 | X ring molding die and x ring manufacturing method, and x ring |
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