JP4161333B2 - Pipe fitting - Google Patents

Pipe fitting Download PDF

Info

Publication number
JP4161333B2
JP4161333B2 JP32220498A JP32220498A JP4161333B2 JP 4161333 B2 JP4161333 B2 JP 4161333B2 JP 32220498 A JP32220498 A JP 32220498A JP 32220498 A JP32220498 A JP 32220498A JP 4161333 B2 JP4161333 B2 JP 4161333B2
Authority
JP
Japan
Prior art keywords
tube
seal member
pipe joint
inner peripheral
joint
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 - Lifetime
Application number
JP32220498A
Other languages
Japanese (ja)
Other versions
JP2000146046A (en
Inventor
和彦 滝川
秀一 嵯峨
Original Assignee
ニッタ・ムアー株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ニッタ・ムアー株式会社 filed Critical ニッタ・ムアー株式会社
Priority to JP32220498A priority Critical patent/JP4161333B2/en
Publication of JP2000146046A publication Critical patent/JP2000146046A/en
Application granted granted Critical
Publication of JP4161333B2 publication Critical patent/JP4161333B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/091—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
    • F16L37/0915—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers with a separate member for releasing the coupling

Description

【０００１】
【発明の属する技術分野】
この発明は、チューブを挿入する事で接続が可能であり、継手本体とこれに挿入接続されたチューブとの間の流体密性が、前記継手本体の内周面側に装着されたリング状のシール部材により確保される形式の管継手に関するものである。
【０００２】
【従来の技術】
この種の管継手としては、例えば、図４に示すような構成のものがある。このものでは、図４や図５に示すように、継手本体１に挿入されたチューブＴは、その端部がシール部材８の内周傾斜部80に当たった後空間部81を狭める態様でシール部材８を押し広げるようにして当該シール部材８内に挿入され、前記継手本体１とチューブＴとの間の流体密性はシール部材８の弾性復帰力により確保される。
【０００３】
しかしながら、この管継手では、上述した如くシール部材８の空間部81を狭める態様でシール圧を形成させるものであるから、図６に示すように幅の広い応力分布になるが、大きな圧縮力を得ることができず、よって、傷やダストに対するシール性が低いという問題がある。
【０００４】
他の管継手として、図７に示すように、シール部材８としてＯリングを使用したものがある。このものは、上記した空間部81を有していない断面円形状のゴム材を図８に示す如く断面長円形状に変形させたときに生じる弾性復帰力により継手本体１とチューブＴとの間の流体密性を確保するものであるから、図９に示す如く部分的に大きなシール圧分布を得ることができ、よって、シール性が高く、高圧流体用に採用できる。
【０００５】
しかしながら、この管継手では、図７に示すように、チューブＴを押し込んだ際に押し込み力が大きかったりシール部材８に傷がついてチューブＴとの間の流体密性が確保できなくなるという問題が発生しやすい。何故ならば、図７に示すように、チューブＴの端部外周縁とシール部材８とが当たる部分Ｐを通るシール部材８の接線Ｌ１と、チューブＴの端部外周縁の延長線Ｌ１とが成す角度αが大きく、チューブＴを押し込んだ際に、チューブＴの端部外周縁がシール部材８に食い込んでしまうからである。
【０００６】
【発明が解決しようとする課題】
そこで、この発明では、傷やダストに対するシール性の影響が少なく、また高圧流体用に使用でき且つチューブ挿入時にシール部材に傷が付くような事態が発生しにくい管継手を提供することを課題とする。
【０００７】
【課題を解決するための手段】
（請求項１記載の発明）
この発明の管継手は、継手本体１とこれに挿入されるチューブＴとの間の流体密性がリング状のシール部材２により確保されるものであって、前記シール部材２の内周部がチューブ挿入域EAに侵入する態様で継手本体１の内周壁に装着されており、前記継手本体１に挿入されたチューブＴは、その端部がチューブ挿入域EAに侵入するシール部材２の内周部に当たった後前記シール部材２を押し広げるようにして当該シール部材２内に挿入されていく形式の管継手において、シール部材２が断面厚板状に形成されており、シール部材２の内周面2aは、チューブ挿入方向中程部が最小径部20となるように設定されていると共に少なくともチューブＴの端部が当たる部分Ｐから前記最小径部20まで緩やかに傾斜するように構成してあり、シール部材２の外周面2bは、前記最小径部20と対応する部分に周突条部21を形成して成る。
（請求項２記載の発明）
この発明の管継手は、上記請求項１記載の発明に関して、周突条部21が、断面円弧状であるものとしている。
【０００８】
なお、この発明における管継手の機能については以下の発明の実施の形態の欄で明らかにする。
【０００９】
【発明の実施の形態】
以下、この発明の実施の形態を図面に従って説明する。
【００１０】
図１は、この発明の実施形態の管継手の断面を示している。
この管継手は、図１や図２に示すように、継手本体１と、シール部材２と、シール部材押さえ３と、チューブ抜止め手段４と、保持体５と、操作部６とから構成されている。
【００１１】
継手本体１は両端開放の円筒状に形成されており、図１に示すように、シール部材２、シール部材押さえ３、チューブ抜止め手段４、保持体５及び操作部６が装着される大径孔部10と、チューブ接続時においてチューブＴの端部が挿入される中径孔部11と、流体が流れる小径孔部12とを有するものとしてある。
【００１２】
シール部材２は、図１に示すように、左右対象の断面厚板状に形成されたリング状のもので、シール部材２の内周面2aは、チューブ挿入方向中央部が最小径部20となるように設定されていると共に少なくともチューブＴの端部が当たる部分Ｐから前記最小径部20まで緩やかに傾斜するように構成してあり、シール部材２の外周面2bは、前記最小径部20と対応する部分に断面円弧状の周突条部21を形成してある。
【００１３】
シール部材押さえ３は、図１に示すように、シール部材２の片面を押さえるためのもので、リング状に形成されている。
【００１４】
チューブ抜止め手段４は、図１に示すように、リング状板40と、前記リング状板40の内周部に一方側に傾斜する態様で設けられた複数の係止爪41とから構成されており、前記リング状板40の外周部をシール押さえ３及び保持体５で形成された周溝に嵌め込む態様で設置されている。なお、このチューブ抜止め手段４はチューブＴが挿入されたときには、図１に示すように、チューブＴの外周面が全ての係止爪41と摺動し、引き抜き力を加えたときには図２に示すように係止爪41の端部がチューブＴの外周面に食い込んで係止状態となるようにしてある。
【００１５】
保持体５は、図１に示すように、操作部６が遊挿される孔50を有する筒状のもので、継手本体１の大径孔部10側の開放部に螺着されている。なお、この保持体５の内端部は、図１に示すように、段付き部13とによりシール押さえ３を保持している。
【００１６】
操作部６は、図１に示すように、内径がチューブＴの外径よりも僅かに大きく且つ外径が上記孔50よりも少し小径に設定されている筒状体60と、これの一端に具備させた鍔部61とから成り、前記筒状体60と保持体５との係合により抜け止め状態に装着されている。そして、この操作部６の押し込み操作により、係止爪41の先端部が奥側に押し込まれて係止爪41とチューブＴとの係止が解除されるようになっている。
【００１７】
この実施形態の管継手ではシール部材２を上記のような構成としてあるから以下に示す機能を有する。
▲１▼シール部材２における少なくともチューブＴの端部が当たる部分Ｐから前記最小径部20まで緩やかに傾斜するように構成してあるから、図１に示すように、チューブＴの端部外周縁がシール部材２の内周面2aと当接する部分Ｐを通る内周面2aの接線Ｌ１と、チューブＴの端部外周縁の延長線Ｌ２とが成す角度αは小さいものとなり、その結果、チューブ挿入時において、チューブＴの挿入力が小さくなり、またチューブＴの端部外周縁がシール部材２の内周面2aに傷を付けにくいものとなる。
▲２▼図２に示す如くチューブＴを管継手に挿入接続した状態では、空間部（図４に示されたような空間部81）を有していないシール部材２の最小径部20及び周突条部21が弾性変形して継手主体１の内周壁やチューブＴの外周壁に対して圧接状態（弾性復帰力による圧接状態）となっており、継手本体１とチューブＴとの間の流体密性が確保されている。この管継手における継手本体１とチューブＴとの間のシール圧分布は、図３に示す如くシール部材としてＯリングを使用した場合と同様に部分的に大きなものとなっている。よって、この管継手は、シール性が高く、高圧流体用に採用できる。
▲３▼したがって、この管継手は高圧流体用に使用でき且つチューブ挿入時にシール部材に傷が付くような事態が発生しにくいことが明らかである。
【００１８】
なお、本件発明の管継手は、継手本体１とこれに挿入されるチューブＴとの間の流体密性がリング状のシール部材２により確保されるものであって、前記シール部材２の内周部がチューブ挿入域EAに侵入する態様で継手本体１の内周壁に装着されており、前記継手本体１に挿入されたチューブＴは、その端部がチューブ挿入域EAに侵入するシール部材２の内周部に当たった後前記シール部材２を押し広げるようにして当該シール部材２内に挿入されていく形式のものであればよく、上記実施形態の構成に限定されるものではない。
【００１９】
【発明の効果】
この発明は上記のような構成であるから、次の効果を有する。
【００２０】
発明の実施の形態の欄に記載した内容から、傷やダストに対するシール性の影響が少なく、また高圧流体用に使用でき且つチューブ挿入時にシール部材に傷が付くような事態が発生しにくい管継手を提供できた。
【図面の簡単な説明】
【図１】この発明の実施形態の管継手の断面図であり、前記管継手の構成部材であるシール部材とチューブの端部とが当接している状態を示した図。
【図２】前記管継手にチューブが接続された状態を示す断面図。
【図３】前記管継手におけるシール圧分布の説明図。
【図４】先行技術の管継手の断面図であり、前記管継手の構成部材であるシール部材とチューブの端部とが当接している状態を示した図。
【図５】先行技術の管継手にチューブが接続された状態を示す断面図。
【図６】先行技術の管継手におけるシール圧分布の説明図。
【図７】他の先行技術の管継手の断面図であり、前記管継手の構成部材であるシール部材とチューブの端部とが当接している状態を示した図。
【図８】他の先行技術の管継手にチューブが接続された状態を示す断面図。
【図９】他の先行技術の管継手におけるシール圧分布の説明図。
【符号の説明】
Ｔ チューブ
EA チューブ挿入域
Ｐ 部分
１ 継手本体
２ シール部材
2a 内周面
2b 外周面
20 最小径部[0001]
BACKGROUND OF THE INVENTION
In the present invention, the connection is possible by inserting a tube, and the fluid tightness between the joint body and the tube inserted and connected to the joint body is a ring shape mounted on the inner peripheral surface side of the joint body. The present invention relates to a pipe joint of a type secured by a seal member.
[0002]
[Prior art]
As this kind of pipe joint, there exists a thing of a structure as shown in FIG. 4, for example. In this case, as shown in FIG. 4 and FIG. 5, the tube T inserted into the joint body 1 is sealed in such a manner that the end portion of the tube T hits the inner peripheral inclined portion 80 of the seal member 8 and the space portion 81 is narrowed. The member 8 is inserted into the seal member 8 so as to spread out, and the fluid tightness between the joint body 1 and the tube T is ensured by the elastic restoring force of the seal member 8.
[0003]
However, in this pipe joint, the sealing pressure is formed in such a manner that the space 81 of the sealing member 8 is narrowed as described above, so that the stress distribution is wide as shown in FIG. Therefore, there is a problem that the sealing performance against scratches and dust is low.
[0004]
As another pipe joint, there is one using an O-ring as the seal member 8 as shown in FIG. This is because between the joint body 1 and the tube T due to an elastic restoring force generated when a rubber material having a circular cross section having no space 81 is deformed into an elliptical cross section as shown in FIG. Therefore, a large seal pressure distribution can be obtained partially as shown in FIG. 9, and therefore, the sealing property is high and can be used for high-pressure fluids.
[0005]
However, in this pipe joint, as shown in FIG. 7, when the tube T is pushed in, there is a problem that the pushing force is large or the seal member 8 is damaged and the fluid tightness with the tube T cannot be secured. It's easy to do. This is because, as shown in FIG. 7, a tangent line L1 of the seal member 8 passing through a portion P where the outer peripheral edge of the tube T and the seal member 8 abut, and an extension line L1 of the outer peripheral edge of the tube T are This is because the angle α formed is large and the outer peripheral edge of the tube T bites into the seal member 8 when the tube T is pushed in.
[0006]
[Problems to be solved by the invention]
Accordingly, an object of the present invention is to provide a pipe joint that is less affected by sealing properties against scratches and dust, can be used for high-pressure fluids, and is less likely to cause damage to the seal member when the tube is inserted. To do.
[0007]
[Means for Solving the Problems]
(Invention of Claim 1)
In the pipe joint of the present invention, the fluid tightness between the joint body 1 and the tube T inserted therein is ensured by the ring-shaped seal member 2, and the inner peripheral portion of the seal member 2 is It is attached to the inner peripheral wall of the joint body 1 in such a manner as to enter the tube insertion area EA, and the tube T inserted into the joint body 1 has an inner periphery of the seal member 2 whose end enters the tube insertion area EA. In a pipe joint of the type that is inserted into the seal member 2 so as to spread the seal member 2 after hitting the part, the seal member 2 is formed in a thick plate shape in cross section. The peripheral surface 2a is set so that the middle portion in the tube insertion direction becomes the minimum diameter portion 20 and is configured to be gently inclined from the portion P where the end of the tube T hits to the minimum diameter portion 20 at least. Of the seal member 2 The outer peripheral surface 2b is formed by forming a peripheral ridge portion 21 at a portion corresponding to the minimum diameter portion 20.
(Invention of Claim 2)
In the pipe joint according to the present invention, the circumferential protrusion 21 has an arcuate cross section with respect to the invention described in claim 1.
[0008]
Note that the function of the pipe joint in the present invention will be clarified in the following embodiments of the present invention.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0010]
FIG. 1 shows a cross section of a pipe joint according to an embodiment of the present invention.
As shown in FIGS. 1 and 2, this pipe joint is composed of a joint body 1, a seal member 2, a seal member presser 3, a tube retaining means 4, a holding body 5, and an operation unit 6. ing.
[0011]
The joint body 1 is formed in a cylindrical shape with both ends open. As shown in FIG. 1, the joint body 1 has a large diameter on which the seal member 2, the seal member press 3, the tube retaining means 4, the holding body 5 and the operation portion 6 are mounted. It has a hole 10, a medium-diameter hole 11 into which an end of the tube T is inserted when the tube is connected, and a small-diameter hole 12 through which a fluid flows.
[0012]
As shown in FIG. 1, the seal member 2 is a ring-shaped member formed in a cross-sectional thick plate shape for left and right objects, and the inner peripheral surface 2 a of the seal member 2 has a central portion in the tube insertion direction and a minimum diameter portion 20. The outer peripheral surface 2b of the seal member 2 is configured so as to be gently inclined from the portion P where at least the end portion of the tube T hits to the minimum diameter portion 20. And a circumferential ridge portion 21 having an arcuate cross section is formed in a portion corresponding to.
[0013]
As shown in FIG. 1, the seal member presser 3 is for pressing one side of the seal member 2 and is formed in a ring shape.
[0014]
As shown in FIG. 1, the tube retaining means 4 includes a ring-shaped plate 40 and a plurality of locking claws 41 provided on the inner peripheral portion of the ring-shaped plate 40 so as to be inclined to one side. The ring-shaped plate 40 is installed in such a manner that the outer peripheral portion of the ring-shaped plate 40 is fitted into a circumferential groove formed by the seal presser 3 and the holding body 5. As shown in FIG. 1, when the tube T is inserted, the tube retaining means 4 slides the outer peripheral surface of the tube T with all the locking claws 41, and when a pulling force is applied, the tube retaining means 4 is shown in FIG. As shown, the end of the locking claw 41 bites into the outer peripheral surface of the tube T so as to be locked.
[0015]
As shown in FIG. 1, the holding body 5 has a cylindrical shape having a hole 50 into which the operation portion 6 is loosely inserted, and is screwed into an opening portion of the joint body 1 on the large diameter hole portion 10 side. As shown in FIG. 1, the inner end portion of the holding body 5 holds the seal presser 3 with a stepped portion 13.
[0016]
As shown in FIG. 1, the operation unit 6 includes a cylindrical body 60 having an inner diameter slightly larger than the outer diameter of the tube T and an outer diameter set slightly smaller than the hole 50, and one end thereof. It comprises a flange 61 provided, and is attached in a retaining state by the engagement between the cylindrical body 60 and the holding body 5. And by this pushing operation of the operation part 6, the front-end | tip part of the latching claw 41 is pushed in to the back side, and the latching of the latching claw 41 and the tube T is cancelled | released.
[0017]
In the pipe joint of this embodiment, since the sealing member 2 is configured as described above, it has the following functions.
(1) Since at least the end portion of the tube T in the seal member 2 is configured to be gently inclined from the portion P where the tube T hits to the minimum diameter portion 20, the outer peripheral edge of the end portion of the tube T as shown in FIG. The angle α formed by the tangent line L1 of the inner peripheral surface 2a passing through the portion P in contact with the inner peripheral surface 2a of the seal member 2 and the extension line L2 of the outer peripheral edge of the tube T becomes small, and as a result, the tube At the time of insertion, the insertion force of the tube T is reduced, and the outer peripheral edge of the end of the tube T is less likely to damage the inner peripheral surface 2a of the seal member 2.
(2) In the state where the tube T is inserted and connected to the pipe joint as shown in FIG. 2, the minimum diameter portion 20 and the circumference of the seal member 2 which does not have the space portion (the space portion 81 as shown in FIG. 4). The protrusion 21 is elastically deformed to be in a pressure contact state (pressure contact state by an elastic restoring force) with respect to the inner peripheral wall of the joint main body 1 and the outer peripheral wall of the tube T, and the fluid between the joint body 1 and the tube T Denseness is ensured. The seal pressure distribution between the joint body 1 and the tube T in this pipe joint is partially large as in the case where an O-ring is used as a seal member as shown in FIG. Therefore, this pipe joint has high sealing performance and can be used for high-pressure fluids.
(3) Therefore, it is clear that this pipe joint can be used for a high-pressure fluid, and it is difficult for the seal member to be damaged when the tube is inserted.
[0018]
In the pipe joint of the present invention, the fluid tightness between the joint main body 1 and the tube T inserted therein is ensured by the ring-shaped seal member 2, and the inner circumference of the seal member 2 is The tube T inserted into the joint body 1 is attached to the inner peripheral wall of the joint body 1 in such a manner that the portion enters the tube insertion area EA, and the end portion of the tube T inserted into the joint body 1 enters the tube insertion area EA. Any structure may be used as long as it is inserted into the sealing member 2 so as to spread the sealing member 2 after hitting the inner peripheral portion, and is not limited to the configuration of the above embodiment.
[0019]
【The invention's effect】
Since the present invention is configured as described above, it has the following effects.
[0020]
From the contents described in the embodiments of the present invention, the pipe joint is less affected by the sealing property against scratches and dust, can be used for high-pressure fluids, and is less likely to cause damage to the seal member when the tube is inserted. Was able to provide.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a pipe joint according to an embodiment of the present invention, showing a state in which a seal member that is a constituent member of the pipe joint and an end of a tube are in contact with each other.
FIG. 2 is a cross-sectional view showing a state where a tube is connected to the pipe joint.
FIG. 3 is an explanatory view of a seal pressure distribution in the pipe joint.
FIG. 4 is a cross-sectional view of a prior art pipe joint, showing a state in which a seal member, which is a constituent member of the pipe joint, is in contact with an end portion of a tube.
FIG. 5 is a cross-sectional view showing a state in which a tube is connected to a prior art pipe joint.
FIG. 6 is an explanatory diagram of seal pressure distribution in a prior art pipe joint.
FIG. 7 is a cross-sectional view of another prior art pipe joint, and shows a state in which a seal member which is a constituent member of the pipe joint and an end of the tube are in contact with each other.
FIG. 8 is a cross-sectional view showing a state where a tube is connected to another prior art pipe joint.
FIG. 9 is an explanatory diagram of a seal pressure distribution in another prior art pipe joint.
[Explanation of symbols]
T tube
EA tube insertion area P Part 1 Joint body 2 Seal member
2a Inner peripheral surface
2b Outer surface
20 Minimum diameter

Claims (2)

継手本体１とこれに挿入されるチューブＴとの間の流体密性がリング状のシール部材２により確保されるものであって、前記シール部材２の内周部がチューブ挿入域EAに侵入する態様で継手本体１の内周壁に装着されており、前記継手本体１に挿入されたチューブＴは、その端部がチューブ挿入域EAに侵入するシール部材２の内周部に当たった後前記シール部材２を押し広げるようにして当該シール部材２内に挿入されていく形式の管継手において、シール部材２が断面厚板状に形成されており、シール部材２の内周面2aは、チューブ挿入方向中程部が最小径部20となるように設定されていると共に少なくともチューブＴの端部が当たる部分Ｐから前記最小径部20まで緩やかに傾斜するように構成してあり、シール部材２の外周面2bは、前記最小径部20と対応する部分に周突条部21を形成して成ることを特徴とする管継手。The fluid tightness between the joint body 1 and the tube T inserted therein is ensured by the ring-shaped seal member 2, and the inner peripheral portion of the seal member 2 enters the tube insertion area EA. The tube T, which is attached to the inner peripheral wall of the joint body 1 in the above-described manner and the end of the tube T inserted into the joint body 1 hits the inner circumference of the seal member 2 entering the tube insertion area EA, is then sealed. In a pipe joint that is inserted into the seal member 2 so as to expand the member 2, the seal member 2 is formed in a thick plate shape, and the inner peripheral surface 2a of the seal member 2 is inserted into the tube. The middle portion in the direction is set to be the minimum diameter portion 20 and is configured to be gently inclined from at least the portion P where the end of the tube T hits to the minimum diameter portion 20. The outer peripheral surface 2b is the minimum Pipe fitting, characterized in that portions corresponding to parts 20 by forming a circumferential ridge 21. 周突条部21が、断面円弧状であることを特徴とする請求項１記載の管継手。The pipe joint according to claim 1, wherein the circumferential protrusion 21 has a circular arc shape in cross section.
JP32220498A 1998-11-12 1998-11-12 Pipe fitting Expired - Lifetime JP4161333B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32220498A JP4161333B2 (en) 1998-11-12 1998-11-12 Pipe fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32220498A JP4161333B2 (en) 1998-11-12 1998-11-12 Pipe fitting

Publications (2)

Publication Number Publication Date
JP2000146046A JP2000146046A (en) 2000-05-26
JP4161333B2 true JP4161333B2 (en) 2008-10-08

Family

ID=18141127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32220498A Expired - Lifetime JP4161333B2 (en) 1998-11-12 1998-11-12 Pipe fitting

Country Status (1)

Country Link
JP (1) JP4161333B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016002535A1 (en) * 2014-07-03 2016-01-07 三桜工業株式会社 Pipe joint
US11060648B2 (en) * 2019-07-30 2021-07-13 Essen Tech Co., Ltd. Connecting device for piping

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002286181A (en) * 2001-03-27 2002-10-03 Nitta Moore Co Pipe coupling
JP5709096B2 (en) 2009-11-18 2015-04-30 Smc株式会社 Pipe fitting
WO2014080431A1 (en) * 2012-11-21 2014-05-30 Anglifil Italia S.R.L. Fitting
KR101642971B1 (en) * 2015-07-24 2016-07-27 이도경 Faucet coupling structure
JP6707492B2 (en) * 2017-04-14 2020-06-10 日東工器株式会社 Pipe fitting member and pipe fitting device
KR101869319B1 (en) * 2017-06-09 2018-06-20 김병섭 Pipe coupler having pipe cover function
CN114568943B (en) * 2022-02-28 2023-07-25 佛山市顺德区美的饮水机制造有限公司 Waterway connecting assembly and water drinking device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016002535A1 (en) * 2014-07-03 2016-01-07 三桜工業株式会社 Pipe joint
US11060648B2 (en) * 2019-07-30 2021-07-13 Essen Tech Co., Ltd. Connecting device for piping

Also Published As

Publication number Publication date
JP2000146046A (en) 2000-05-26

Similar Documents

Publication Publication Date Title
US5380049A (en) Pipe coupling
KR940009345B1 (en) Connector for thin pipe
US7922215B2 (en) Plug connector for fluid conduits
JP3798791B2 (en) Removable plug-in coupling with protective sleeve
KR940009688B1 (en) Connector for connecting thin pipe
GB2161568A (en) Hose coupling
JP4161333B2 (en) Pipe fitting
JP2001200963A (en) Connector
KR960006181B1 (en) Slender pipe connector
JPH05126288A (en) Wateritight clamping device for clamping flexible tube forcibly mounted to tubular connecting section
BRPI0916771B1 (en) FITTING COUPLING FOR PRESSURE CONDUITS
JP4375871B2 (en) One-touch fitting for flexible tube
JP3278563B2 (en) Captive fittings
JP3492549B2 (en) Piping fitting device
US5924813A (en) Gasket clamp structure
JPH0814477A (en) Sludge deposition preventing fitting for pipe joint
JPH0432525Y2 (en)
JP5514414B2 (en) Plug-in fittings
JP3035736B2 (en) Flexible pipe joint
JPH0738871U (en) Detachment prevention fitting
KR100965922B1 (en) Coupling for a fluid line arrangement
JP2758098B2 (en) Captive fittings
JPH04363520A (en) Pipe joint construction of air-conditioner
JP3534283B2 (en) Hose connector
JP3570975B2 (en) One-touch fitting for flexible tube

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050727

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080611

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080616

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080711

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110801

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110801

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120801

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120801

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130801

Year of fee payment: 5

EXPY Cancellation because of completion of term