JP2006316983A - Pipe joint - Google Patents

Pipe joint Download PDF

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JP2006316983A
JP2006316983A JP2005143218A JP2005143218A JP2006316983A JP 2006316983 A JP2006316983 A JP 2006316983A JP 2005143218 A JP2005143218 A JP 2005143218A JP 2005143218 A JP2005143218 A JP 2005143218A JP 2006316983 A JP2006316983 A JP 2006316983A
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seal ring
coil spring
slide valve
valve body
pipe joint
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JP4634218B2 (en
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Masayuki Imaizumi
正行 今泉
Takeya Sasa
武也 佐々
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Nitto Kohki Co Ltd
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Nitto Kohki Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To achieve appropriate sealing pressure of a seal ring in response to a connected state and a disconnected state of male and female type pipe joint members of a pipe joint used in a pipe of a heat medium. <P>SOLUTION: This pipe joint comprises a cylindrical main body 14, a slide valve element 18 axially displaceable in a fluid passage 12 of the cylindrical main body 14 and displaceable between a closing position and an opening position, the seal ring 20 mounted on the slide valve element and sliding to an inner peripheral face of the cylindrical main body, a coil spring as the coil spring 22 axially pressing the seal ring and compressed when the slide valve element is displaced from the closing position to the opening position to increase pressing force to the seal ring, and a seal ring retaining member 26 for retaining the seal ring against the pressing force of the coil spring. The seal ring 20 is composed of an elastic member elastically deformable in the radial direction of the cylindrical main body by the pressing force of the coil spring. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は管継手に関する。   The present invention relates to a pipe joint.

例えば、精密ダイキャストでは、金型に熱媒体用配管が設けられており、ダイキャスト作業中に加熱した熱媒体(油)を外部の供給源から供給循環して金型を加熱するようにしており、金型を交換するときには、該熱媒体用配管を外部の供給源に接続している管継手を外して行うようになっている。   For example, in precision die casting, a heat medium pipe is provided in the mold, and the heat medium (oil) heated during the die casting operation is supplied and circulated from an external supply source to heat the mold. When the mold is replaced, the pipe joint that connects the heat medium pipe to an external supply source is removed.

管継手は、雌型管継手部材及び雄型管継手部材から構成されており、それらが接続された状態においても、また、外された状態においても、内部にある熱媒体が外部に漏洩しないようにすることが必要であり、このため、これら雌型管継手部材及び雄型管継手部材の内部に設けられるシールリングを適切なものにすることが必要である。   The pipe joint is composed of a female pipe joint member and a male pipe joint member, so that the heat medium inside does not leak to the outside even when they are connected or removed. For this reason, it is necessary to make the seal ring provided inside the female pipe fitting member and the male pipe fitting member appropriate.

シールリングは種々の形式のものが開発されてきているが、断面形状を横向きのY型とし、該Y型の二股部分を管継手部材の半径方向内側部材と半径方向外側部材との間に設定し、該二股部分の間に押圧部材を当ててこれをバネによって押圧し、押し広げるようにすることによって該半径方向内側部材と半径方向外側部材へのシール圧力を高くして、熱媒体の漏洩を防ぐようにしたものが知られている。(特許文献1及び2参照)
実開平4−95385号 実開平5−14784号
Various types of seal rings have been developed. The cross-sectional shape is a Y-shaped cross section, and the bifurcated portion of the Y-shape is set between the radially inner member and the radially outer member of the pipe joint member. Then, by applying a pressing member between the bifurcated portions and pressing it with a spring to spread it, the sealing pressure on the radially inner member and the radially outer member is increased, and the heat medium leaks. What is known to prevent this is known. (See Patent Documents 1 and 2)
Japanese Utility Model Publication No. 4-95385 ACT 5-14784

しかし、上記の精密ダイキャストにおける熱媒体の配管などに用いられる管継手においては、ダイキャスト作業時に約300℃程度の加熱を受けるために、樹脂から作られるシールリングが熱収縮等を受けて、十分なシール機能を果たさなくなる場合がある。   However, in the pipe joint used for the heat medium piping in the above precision die casting, in order to receive heating at about 300 ° C. during the die casting operation, the seal ring made of resin is subjected to heat shrinkage, etc. In some cases, the sealing function may not be sufficient.

また、これまでのこの種の管継手におけるシールリングにおいては、バネによる押圧がほぼ一定に保たれているが、雌型管継手部材と雄型管継手部材とを接続して内部流体が高圧状態にある場合と、それらを外した場合とでは、シール圧力をそれぞれの状態にあわせたものにすることがより適切である。   Moreover, in the seal ring in this type of pipe joint so far, the pressure by the spring is kept almost constant, but the internal fluid is in a high pressure state by connecting the female pipe joint member and the male pipe joint member. It is more appropriate to make the sealing pressure suitable for each state in the case where the seal pressure is removed and in the case where they are removed.

本発明は、このような点に鑑み、雄型管継手部材及び雌型管継手部材が相互に連結されている状態及び外されている状態に合わせて、適宜のシール圧力とすることにより、上述の熱収縮などの影響を余り受けずに適正なシール作用を行うことができるシールリングを備えた管継手を提供することを目的とするものである。   In view of such a point, the present invention provides the above-described sealing pressure by setting an appropriate seal pressure in accordance with the state in which the male pipe joint member and the female pipe joint member are connected to each other and the state in which the male pipe joint member is removed. It is an object of the present invention to provide a pipe joint including a seal ring that can perform an appropriate sealing action without being affected by heat shrinkage or the like.

すなわち、本発明は、
流体通路を有する筒状本体と、
該筒状本体の流体通路内に該筒状本体の軸線方向で変位可能とされ、該流体通路を閉じる閉止位置と該流体通路を開く開放位置との間で変位可能とされたスライド弁体と、
該スライド弁体の外周面に設けられ、該スライド弁体の該軸線方向での動きに伴って該筒状本体の内周面に対して摺動するシールリングと、
該シールリングを軸線方向で押圧するコイルバネであって、該スライド弁体が該閉止位置から該開放位置に向けて変位されるときに圧縮されて該シールリングに対する押圧力を増大するようになされたコイルバネと、
スライド弁体上に設けられ、該シールリングと当接し、該コイルバネによって押圧される該シールリングに当接して、該スライド弁体上の所定位置に保持するシールリング保持部材と、
を有し、
該シールリングが該コイルバネによる押圧力により該筒状本体の半径方向で弾性変形可能な弾性部材により形成されていることを特徴とする管継手部材を提供する。
That is, the present invention
A cylindrical body having a fluid passage;
A slide valve body that is displaceable in the axial direction of the tubular body in the fluid passage of the tubular body, and is displaceable between a closed position that closes the fluid passage and an open position that opens the fluid passage; ,
A seal ring that is provided on the outer peripheral surface of the slide valve body, and that slides with respect to the inner peripheral surface of the cylindrical body as the slide valve body moves in the axial direction;
A coil spring that presses the seal ring in the axial direction, and is compressed when the slide valve body is displaced from the closed position toward the open position to increase the pressing force on the seal ring. A coil spring;
A seal ring holding member that is provided on the slide valve body, contacts the seal ring, contacts the seal ring pressed by the coil spring, and holds the seal ring in a predetermined position on the slide valve body;
Have
A pipe joint member is provided in which the seal ring is formed of an elastic member that can be elastically deformed in a radial direction of the cylindrical main body by a pressing force of the coil spring.

この管継手部材においては、スライド弁体が閉止位置から開放位置へ変位されることによりコイルバネの圧縮が増大されて、それに応じて該コイルバネからシールリングにかけられる押圧力が増大し、また、スライド弁体が開放位置から閉止位置に変位されることにより、コイルバネからシールリングにかけられる押圧力は逆に低下する。従って、この管継手においては、スライド弁体の閉止・開放の状態に応じて適切なシール圧力を得ることが可能となる。尚、シールリング部材は、スライド弁体と別体として形成し、スライド弁体にネジなどにより固定したり、又は、スライド弁体と一体成形したりすることができる。   In this pipe joint member, the compression of the coil spring is increased by the displacement of the slide valve body from the closed position to the open position, and accordingly, the pressing force applied from the coil spring to the seal ring is increased. When the body is displaced from the open position to the closed position, the pressing force applied from the coil spring to the seal ring is reduced. Therefore, in this pipe joint, it is possible to obtain an appropriate seal pressure according to the closed / open state of the slide valve body. The seal ring member can be formed separately from the slide valve body, and can be fixed to the slide valve body with screws or the like, or can be formed integrally with the slide valve body.

具体的には、
該シールリングは
シールリング保持部材に当接する基部と、
該基部から該コイルバネのある方向に延び、その先端部分において該筒状本体に摺動係合する外側シール部と、
を有し、
該シールリングとコイルバネとの間にシールリング押圧部材が設けられ、
該シールリング押圧部材が該コイルバネの押圧力によって該外側シール部を筒状本体の内周面に押圧するようにすることができる。
In particular,
The seal ring includes a base that contacts the seal ring holding member;
An outer seal portion extending from the base portion in the direction of the coil spring and slidingly engaging the cylindrical main body at the tip portion;
Have
A seal ring pressing member is provided between the seal ring and the coil spring;
The seal ring pressing member can press the outer seal portion against the inner peripheral surface of the cylindrical body by the pressing force of the coil spring.

より具体的には、
該外側シール部がその先端部分において、半径方向外側に膨出して該筒状本体の内周面と摺動係合する摺動部を有し、
該シールリングが該基部からコイルバネのある方向で該半径方向内側に延びてスライド弁体の外周面に弾性変形しながら押圧係合する内側シール部を有するようにすることができる。
このようにすることにより、熱の受け易いシールリングの基部に熱収縮が起こっても、外側シール部はコイルバネの押圧力により筒状本体との摺動係合は適切に維持され、また、内側シール部はそれ自体の弾性変形力によりスライド弁体の外周面との押圧係合状態を維持することができる。
More specifically,
The outer seal portion has a sliding portion that swells radially outward at the distal end portion thereof and slidingly engages with the inner peripheral surface of the cylindrical main body,
The seal ring may have an inner seal portion that extends radially inward in the direction of the coil spring from the base portion and presses and engages the outer peripheral surface of the slide valve body while being elastically deformed.
By doing so, even if heat shrinkage occurs at the base of the seal ring that is susceptible to heat, the outer seal portion is properly maintained in sliding engagement with the cylindrical body by the pressing force of the coil spring, and the inner side The seal portion can maintain a pressing engagement state with the outer peripheral surface of the slide valve body by its own elastic deformation force.

また、
該シールリングの該基部を環状とし、
その半径方向内側部分が係合される段付部が、該スライド弁体の外周面に形成され、
該基部の半径方向内側部分が該段付部と該シールリング保持部材との間に挟着される
ようにすることができる。
Also,
The base of the seal ring is annular,
A stepped portion with which the radially inner portion is engaged is formed on the outer peripheral surface of the slide valve body,
A radially inner portion of the base portion can be sandwiched between the stepped portion and the seal ring holding member.

スライド弁体は、シールリング及びシールリング保持部材を介して、コイルバネにより閉止位置に押圧されるようにすることができる。 The slide valve body can be pressed to the closed position by a coil spring via the seal ring and the seal ring holding member.

本発明に係る管継手においては、上述のように、スライド弁体の閉止・開放の状態に応じて適切なシール圧力を得ることが可能となる。また、熱を受け易い基部に熱収縮が生じたとしても、外側シール部及び内側シール部は、それぞれ必要なシール圧力で管継手部材の所要の部位に摺動係合し、従来のものに比べてより適切な密封作用の維持を図ることが可能となる。   In the pipe joint according to the present invention, as described above, it is possible to obtain an appropriate seal pressure according to the closed / open state of the slide valve body. Also, even if heat shrinkage occurs in the base that is susceptible to heat, the outer seal portion and the inner seal portion are each slidably engaged with the required portion of the pipe joint member at the required seal pressure, compared to the conventional one. This makes it possible to maintain a more appropriate sealing action.

以下、本発明に係る管継手部材の実施形態を図面に基づき説明する。   Hereinafter, an embodiment of a pipe joint member concerning the present invention is described based on a drawing.

図1は、本発明に係る管継手部材10の断面図を示す。図示のように、管継手部材10は、雌型管継手部材であり、流体通路12を有する筒状本体14と、該筒状本体14の流体通路12内に該流体通路の中心軸線に沿って配置され固定された固定弁体16と、該筒状本体14の軸線方向で変位可能とされ、(図示のように)固定弁体16に密封係合して該流体通路12を閉じる閉止位置及び(図示の位置よりも左方に変位して固定弁体16から離れ)該流体通路を開く開放位置との間で変位可能とされたスライド弁体18と、該スライド弁体18の外周面に設けられ、該スライド弁体18の軸線方向での動きに伴って該筒状本体の内周面に対して摺動するシールリング20と、該シールリング20と該筒状本体14との間に設けられて、シールリング20を軸線方向で(図で見て右方へ)押圧するコイルバネ22であって、該スライド弁体が該閉止位置から該開放位置に向けて左方へ変位されるときに圧縮されて該シールリングに対する押圧力を増大するようになされたコイルバネ22と、コイルバネ22の押圧力を受けてシールリング20を押圧するシールリング押圧部材24と、スライド弁体18上で軸線方向においてコイルバネ22とは反対側の位置に設けられ、シールリング20と当接し、該コイルバネ22によって押圧される該シールリング20を保持するシールリング保持部材26と、を有する。シールリング20はシールリング押圧部材24によってかけられる押圧力により筒状本体14の半径方向で弾性変形可能な弾性部材により形成されている。   FIG. 1 shows a cross-sectional view of a pipe joint member 10 according to the present invention. As shown in the figure, the pipe joint member 10 is a female pipe joint member, and has a cylindrical main body 14 having a fluid passage 12, and a fluid passage 12 of the cylindrical main body 14 along the central axis of the fluid passage. A fixed valve body 16 disposed and fixed; and a closed position that is displaceable in the axial direction of the cylindrical main body 14 and seals the fluid passage 12 by sealingly engaging the fixed valve body 16 (as shown). (Displaced to the left of the position shown in the figure and away from the fixed valve body 16). A slide valve body 18 that is displaceable between the fluid passage and an open position, and an outer peripheral surface of the slide valve body 18. A seal ring 20 that slides with respect to the inner peripheral surface of the cylindrical body as the slide valve body 18 moves in the axial direction, and between the seal ring 20 and the cylindrical body 14. Provided to press the seal ring 20 in the axial direction (to the right as viewed in the figure) A coil spring 22, which is compressed when the slide valve body is displaced leftward from the closed position toward the open position to increase a pressing force against the seal ring; and a coil spring A seal ring pressing member 24 that receives the pressing force of 22 and presses the seal ring 20, and is provided on the slide valve body 18 at a position opposite to the coil spring 22 in the axial direction, abutting against the seal ring 20, and the coil spring And a seal ring holding member 26 that holds the seal ring 20 pressed by 22. The seal ring 20 is formed of an elastic member that can be elastically deformed in the radial direction of the cylindrical main body 14 by a pressing force applied by the seal ring pressing member 24.

筒状部材14は、第1筒状部14−1と、該第1筒状部14−1にネジ係合された、一般的にはアダプタと呼ばれる第2筒状部14−2とから構成されている。固定弁体16は、流体通路の中心軸線から放射状に延びる複数の部材からなるスパイダー部材16−1と、該スパイダー部に固定され軸線方向に沿って延びるシャンク部材16−2とから構成され、該シャンク部材16−2の先端にはほぼ円盤状のシール部16−3が形成されている。   The cylindrical member 14 includes a first cylindrical portion 14-1 and a second cylindrical portion 14-2 generally called an adapter that is screw-engaged with the first cylindrical portion 14-1. Has been. The fixed valve body 16 includes a spider member 16-1 composed of a plurality of members extending radially from the central axis of the fluid passage, and a shank member 16-2 fixed to the spider portion and extending along the axial direction. A substantially disc-shaped seal portion 16-3 is formed at the tip of the shank member 16-2.

スライド弁体18は筒状にされており、その先端面に固定弁体16のシール部16−3に密封係合する環状密封部18−2が設けられている。   The slide valve body 18 is formed in a cylindrical shape, and an annular sealing portion 18-2 that is hermetically engaged with the seal portion 16-3 of the fixed valve body 16 is provided on the distal end surface thereof.

図2に示すように、シールリング20は、シールリング保持部材26に当接する基部20−1と、該基部からコイルバネ22のある方向に向け半径方向外側に延び、その先端部分において筒状本体14に摺動係合する外側シール部20−2と、基部20−1からコイルバネ22のある方向で半径方向内側に延びてスライド弁体18の外周面に弾性変形しながら押圧係合する内側シール部20−3とを有している。図示の例では、外側シール部20−2は、その先端部分20−4が半径方向外側に膨出して、該部分が弾性変形しながら筒状本体14の内周面と摺動係合するようになっている。また、シールリング20の環状とされている基部20−1は、その半径方向内側部分20−5が、スライド弁体18の外周面に形成された嵌合される段付部18−1に係合され、スライド弁体18にネジ係合されたシールリング保持部材26によって軸線方向で固定されている。 As shown in FIG. 2, the seal ring 20 includes a base portion 20-1 that contacts the seal ring holding member 26, and extends radially outward from the base portion in the direction of the coil spring 22, and at the tip portion thereof, the cylindrical main body 14. An outer seal portion 20-2 that is slidably engaged with each other, and an inner seal portion that extends radially inward in the direction of the coil spring 22 from the base portion 20-1 and press-engages while elastically deforming the outer peripheral surface of the slide valve body 18. 20-3. In the illustrated example, the outer seal portion 20-2 has a distal end portion 20-4 bulging outward in the radial direction so that the portion is slidably engaged with the inner peripheral surface of the cylindrical main body 14 while being elastically deformed. It has become. Further, the annular base portion 20-1 of the seal ring 20 has a radially inner portion 20-5 engaged with a stepped portion 18-1 formed on the outer peripheral surface of the slide valve body 18. And is fixed in the axial direction by a seal ring holding member 26 screwed to the slide valve body 18.

図示の例においては、第1筒状部材14−1には、半径方向に設けられた貫通孔14−3が設けられ、該貫通孔にはボール状の施錠子28が設けられており、該第1筒状部材14−1の外周面上には筒状の操作スリーブ30が設けられ、雄型の管継手部材(図示せず)を挿入・引抜するときには、操作スリーブ30をコイルバネ32に抗して図1で見て左方へ変位させ、施錠子28が半径方向外側に変位可能とし、挿入された雄型の管継手部材を固定するためには、操作スリーブ30を図1の位置に戻して、半径方向内側に押圧して、該施錠子28を雄型の管継手部材の外表面に形成された施錠凹部に係合するようにする。 In the illustrated example, the first cylindrical member 14-1 is provided with a through hole 14-3 provided in the radial direction, and a ball-shaped lock 28 is provided in the through hole. A cylindrical operation sleeve 30 is provided on the outer peripheral surface of the first cylindrical member 14-1, and the operation sleeve 30 is resisted against the coil spring 32 when a male pipe coupling member (not shown) is inserted / removed. In order to displace the locking element 28 radially outward as shown in FIG. 1 and to fix the inserted male pipe joint member, the operating sleeve 30 is moved to the position shown in FIG. Returning and pressing radially inward, the locking element 28 is engaged with a locking recess formed on the outer surface of the male pipe joint member.

本発明に係る雌型の管継手部材10は以上のように構成されており、雄型の管継手部材が図で見て右側から挿入されてくると、スライド弁体18は該雄型の管継手部材によって左方に変位され、固定弁部材16(のシール部16−3)から離れて流体通路12を開放するようになる。このときコイルバネ22はシールリング20と筒状本体14との間で次第に圧縮され、当該スライド弁体18がその開放位置(従って、管継手部材の連結が完了した位置)となったときに、該コイルバネ22は最大の押圧力を生じ、この押圧力を受けたシールリング押圧部材24を介して、シールリング20の外側シール部20−2が筒状本体14の内周面に押圧される。従って、そのときのコイルバネ22の押圧力を適正に調整することにより、流体通路内を流れる流体に対して適正な密封を行うことができる。   The female pipe joint member 10 according to the present invention is configured as described above. When the male pipe joint member is inserted from the right side as viewed in the figure, the slide valve body 18 becomes the male pipe member. It is displaced to the left by the joint member, and the fluid passage 12 is opened away from the fixed valve member 16 (the seal portion 16-3). At this time, the coil spring 22 is gradually compressed between the seal ring 20 and the cylindrical main body 14, and when the slide valve body 18 reaches its open position (and hence the position at which the coupling of the pipe joint member is completed), The coil spring 22 generates the maximum pressing force, and the outer seal portion 20-2 of the seal ring 20 is pressed against the inner peripheral surface of the cylindrical main body 14 via the seal ring pressing member 24 that has received the pressing force. Accordingly, by properly adjusting the pressing force of the coil spring 22 at that time, it is possible to properly seal the fluid flowing in the fluid passage.

また、管継手の連結が解除され、スライド弁体18が図示の閉止位置に戻ると、コイルバネ22の押圧力は減少するが、該押圧力をそのときに管継手内にある流体圧力に応じた適正なものに調整することにより、シールリング20に過剰な力をかけることなく適正な密封を行うことができる。   When the coupling of the pipe joint is released and the slide valve body 18 returns to the closed position shown in the figure, the pressing force of the coil spring 22 decreases, but the pressing force depends on the fluid pressure in the pipe joint at that time. By adjusting to an appropriate one, proper sealing can be performed without applying excessive force to the seal ring 20.

本発明に係る管継手部材の断面側面図である。It is a section side view of the pipe joint member concerning the present invention. 図1の管継手部材の要部拡大図である。It is a principal part enlarged view of the pipe joint member of FIG.

符号の説明Explanation of symbols

10 管継手部材
12 流体通路
14 筒状本体
14−1 第1筒状部
14−2 第2筒状部
14−3 貫通孔
16 固定弁体
16−1 スパイダー部
16−2 シャンク部
16−3 シール部
18 スライド弁体
18−1 段付部
18−2 環状密封部
20 シールリング
20−1 基部
20−2 外側シール部
20−3 内側シール部
20−4 外側シール部の先端部分(摺動部)
22 コイルバネ
24 シールリング押圧部材
26 シールリング保持部材
28 施錠子
30 操作スリーブ
32 コイルバネ
DESCRIPTION OF SYMBOLS 10 Pipe coupling member 12 Fluid passage 14 Cylindrical main body 14-1 1st cylindrical part 14-2 2nd cylindrical part 14-3 Through-hole 16 Fixed valve body 16-1 Spider part 16-2 Shank part 16-3 Seal Part 18 Slide valve body 18-1 Stepped part 18-2 Annular seal part 20 Seal ring 20-1 Base part 20-2 Outer seal part 20-3 Inner seal part 20-4 The tip part of the outer seal part (sliding part)
22 Coil spring 24 Seal ring pressing member 26 Seal ring holding member 28 Locking element 30 Operation sleeve 32 Coil spring

Claims (5)

流体通路を有する筒状本体と、
該筒状本体の流体通路内に該筒状本体の軸線方向で変位可能とされ、該流体通路を閉じる閉止位置と該流体通路を開く開放位置との間で変位可能とされたスライド弁体と、
該スライド弁体の外周面に設けられ、該スライド弁体の該軸線方向での動きに伴って該筒状本体の内周面に対して摺動するシールリングと、
該シールリングを軸線方向で押圧するコイルバネであって、該スライド弁体が該閉止位置から該開放位置に向けて変位されるときに圧縮されて該シールリングに対する押圧力を増大するようになされたコイルバネと、
スライド弁体上に設けられ、該コイルバネによって押圧される該シールリングに当接して、該シールリングを該スライド弁体上の所定位置に保持するシールリング保持部材と、
を有し、
該シールリングが該コイルバネによる押圧力により該筒状本体の半径方向で弾性変形可能な弾性部材により形成されていることを特徴とする管継手部材。
A cylindrical body having a fluid passage;
A slide valve body that is displaceable in the axial direction of the tubular body in the fluid passage of the tubular body, and is displaceable between a closed position that closes the fluid passage and an open position that opens the fluid passage; ,
A seal ring that is provided on the outer peripheral surface of the slide valve body, and that slides with respect to the inner peripheral surface of the cylindrical body as the slide valve body moves in the axial direction;
A coil spring that presses the seal ring in the axial direction, and is compressed when the slide valve body is displaced from the closed position toward the open position to increase the pressing force on the seal ring. A coil spring;
A seal ring holding member that is provided on the slide valve body and contacts the seal ring pressed by the coil spring to hold the seal ring in a predetermined position on the slide valve body;
Have
A pipe joint member, wherein the seal ring is formed of an elastic member that can be elastically deformed in a radial direction of the cylindrical main body by a pressing force of the coil spring.
該シールリングが
シールリング保持部材に当接する基部と、
該基部から該コイルバネのある方向に延び、その先端部分において該筒状本体に摺動係合する外側シール部とを有し、
該シールリングとコイルバネとの間にシールリング押圧部材が設けられ、
該シールリング押圧部材が該コイルバネの押圧力によって該外側シール部を筒状本体の内周面に押圧するようになされている
ことを特徴とする請求項1に記載の管継手部材。
A base where the seal ring contacts the seal ring holding member;
An outer seal portion extending from the base portion in a direction of the coil spring and slidingly engaging the cylindrical body at a tip portion thereof;
A seal ring pressing member is provided between the seal ring and the coil spring;
The pipe joint member according to claim 1, wherein the seal ring pressing member is configured to press the outer seal portion against the inner peripheral surface of the cylindrical main body by a pressing force of the coil spring.
該外側シール部がその先端部分において、半径方向外側に膨出して該筒状本体の内周面と摺動係合する摺動部を有し、
該シールリングが該基部からコイルバネのある方向で該半径方向内側に延びてスライド弁体の外周面に弾性変形して押圧係合する内側シール部を有している
ことを特徴とする請求項2に記載の管継手部材。
The outer seal portion has a sliding portion that swells radially outward at the distal end portion thereof and slidingly engages with the inner peripheral surface of the cylindrical main body,
The seal ring has an inner seal portion that extends radially inward in the direction of the coil spring from the base portion and elastically deforms and press-fits to the outer peripheral surface of the slide valve body. A pipe joint member according to the above.
該シールリングの該基部を環状とし、
その半径方向内側部分が係合される段付部が、該スライド弁体の外周面に形成され、
該基部の半径方向内側部分が該段付部と該シールリング保持部材との間に挟着されていることを特徴とする請求項3に記載の管継手部材。
The base of the seal ring is annular,
A stepped portion with which the radially inner portion is engaged is formed on the outer peripheral surface of the slide valve body,
The pipe joint member according to claim 3, wherein a radially inner portion of the base portion is sandwiched between the stepped portion and the seal ring holding member.
該スライド弁体は、該シールリング及び該シールリング保持部材を介して、該コイルバネにより該閉止位置に押圧されることを特徴とする請求項1乃至4のいずれかに記載の管継手部材。

The pipe joint member according to any one of claims 1 to 4, wherein the slide valve body is pressed to the closed position by the coil spring through the seal ring and the seal ring holding member.

JP2005143218A 2005-05-16 2005-05-16 Pipe fitting Active JP4634218B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101936436A (en) * 2009-06-30 2011-01-05 日东工器株式会社 Pipe joint
CN102555924A (en) * 2011-12-16 2012-07-11 长沙中联消防机械有限公司 Fixing device and automobile
JP2012177442A (en) * 2011-02-28 2012-09-13 Nitto Kohki Co Ltd Pipe joint member
CN112576832A (en) * 2019-09-30 2021-03-30 史陶比尔法万举 Fluid coupling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105020516B (en) * 2014-04-25 2017-07-28 上海亚大汽车塑料制品有限公司 Metal quick connector

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63146291U (en) * 1987-03-18 1988-09-27
JPH0495385U (en) * 1991-01-14 1992-08-18
JPH09280455A (en) * 1996-04-17 1997-10-31 Nitto Kohki Co Ltd Pipe joint

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63146291U (en) * 1987-03-18 1988-09-27
JPH0495385U (en) * 1991-01-14 1992-08-18
JPH09280455A (en) * 1996-04-17 1997-10-31 Nitto Kohki Co Ltd Pipe joint

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101936436A (en) * 2009-06-30 2011-01-05 日东工器株式会社 Pipe joint
JP2011012692A (en) * 2009-06-30 2011-01-20 Nitto Kohki Co Ltd Pipe joint
JP2012177442A (en) * 2011-02-28 2012-09-13 Nitto Kohki Co Ltd Pipe joint member
CN102555924A (en) * 2011-12-16 2012-07-11 长沙中联消防机械有限公司 Fixing device and automobile
CN112576832A (en) * 2019-09-30 2021-03-30 史陶比尔法万举 Fluid coupling

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