JP2001221386A - Spigot type pipe joint - Google Patents
Spigot type pipe jointInfo
- Publication number
- JP2001221386A JP2001221386A JP2000028577A JP2000028577A JP2001221386A JP 2001221386 A JP2001221386 A JP 2001221386A JP 2000028577 A JP2000028577 A JP 2000028577A JP 2000028577 A JP2000028577 A JP 2000028577A JP 2001221386 A JP2001221386 A JP 2001221386A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- packing
- joint
- connecting pipe
- joint body
- 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
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
-
- 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
- F16L37/092—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 elements wedged between the pipe and the frusto-conical surface of the body of the connector
- F16L37/0926—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 elements wedged between the pipe and the frusto-conical surface of the body of the connector with an inner support sleeve arranged within the pipe
-
- 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
- F16L37/092—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 elements wedged between the pipe and the frusto-conical surface of the body of the connector
- F16L37/0927—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 elements wedged between the pipe and the frusto-conical surface of the body of the connector the wedge element being axially displaceable for releasing the coupling
-
- 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
- F16L2201/00—Special arrangements for pipe couplings
- F16L2201/10—Indicators for correct coupling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Pressure Members (AREA)
- Joints With Sleeves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、接続管との接続時
に管端を継手本体の接続口に差し込むだけで接続できる
差込式管継手に関し、詳しくは差込状態を確認できる差
込式管継手に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug-in type pipe joint which can be connected simply by inserting a pipe end into a connection port of a joint body when connecting with a connection pipe, and more particularly, to a plug-in type pipe capable of confirming a plugged state. It relates to a joint.
【０００２】[0002]
【従来の技術】従来、例えば特開昭２−２４０４９２号
公報では、図１０で示すように継手本体Ｓの受口内面に
開口端側に向かって順次縮径するテーパ内周面Ｏ、Ｐを
備え、このテーパ内周面に周方向の一部が分断された抜
け止め具Ｑを備え、接続管Ｒが抜けようとするとテーパ
内周面Ｏ、Ｐで抜け止め具Ｑが縮径して接続管Ｒの外周
面に食い込み、接続管Ｒが継手本体Ｓから抜け出すのを
阻止した差込式管継手がある。2. Description of the Related Art Conventionally, for example, in Japanese Unexamined Patent Publication No. 2-240492, as shown in FIG. 10, tapered inner peripheral surfaces O and P which gradually decrease in diameter toward the opening end side are formed on a receiving inner surface of a joint body S. The tapered inner peripheral surface is provided with a stopper Q that is partially cut off in the circumferential direction. When the connecting pipe R is about to come off, the taper inner peripheral surfaces O and P reduce the diameter of the stopper Q and connect. There is a plug-in type pipe joint that bites into the outer peripheral surface of the pipe R and prevents the connecting pipe R from coming out of the joint main body S.
【０００３】また本出願人が発明の特開平０７−０３５
２８１号公報では、図１１で示すごとく、接続管の内面
を支持する筒状突出部５の外面にＯリング６を装着して
管とのシールを行うようにし、抜け止め具３の円周上の
割溝４に溝拡径部材７の端部９２が係止して割溝の幅が
拡げられており、接続管２を所定量挿入すると溝拡径部
材７の当接部９３が管の端部で押されて内奥部へ圧縮移
動するので、溝拡径部材７の端部９５が抜け止め具３の
割溝４との係止から外れ、また溝拡径部材７の指示部９
５が継手本体の窓８に立ち上がって、管２が継手本体内
へ所定量挿入したかの確認が行われる管継手がある。Further, the applicant of the present invention disclosed in Japanese Patent Application Laid-Open No. 07-035
In Japanese Patent Publication No. 281, as shown in FIG. 11, an O-ring 6 is attached to an outer surface of a cylindrical projection 5 supporting an inner surface of a connecting pipe so as to seal with the pipe. The end 92 of the groove expanding member 7 is locked in the split groove 4 so that the width of the split groove is expanded, and when the connecting pipe 2 is inserted by a predetermined amount, the contact portion 93 of the groove expanding member 7 is The end portion 95 of the groove expanding member 7 is disengaged from the engagement with the split groove 4 of the retaining member 3 because the end portion 95 is pressed and moved inward toward the inner portion, and the indicating portion 9 of the groove expanding member 7 is released.
There is a pipe joint in which 5 rises to the window 8 of the joint body to check whether the pipe 2 has been inserted into the joint body by a predetermined amount.
【０００４】[0004]
【発明が解決しようとする課題】上記従来技術の内前者
の差込式管継手では、管Ｒとのシールは継手本体内に装
着したＯリングパッキンＶによって行われるが、パッキ
ンＶは管Ｒの外周面による圧縮のみで行われるためシー
ル作用が不安定である。また管Ｒが引き抜かれるとき管
Ｒと抜け止め具Ｑが一体となって後退し、本体のテーパ
内周面Ｏ，Ｐで抜け止め具Ｑが縮径されて管Ｒへの食い
込みが行われるが、抜け止め具Ｑの縮径は管Ｒが引き抜
かれるまで強制的作用せず、従って管の引き抜け阻止も
不安定で、管Ｒの外径が規定より小径のものではすっぽ
抜ける場合もある。また反対に管の外径が規定より大き
いとスムースに挿入できないので作業性が悪く、管Ｒの
先端面が抜け止め具Ｑに突き当たってそれ以上挿入でき
ない場合がある。また樹脂管等の柔らかい材質の管で
は、管Ｒの先端が抜け止め具Ｑに突き当たると管Ｒ自身
が曲がってそれ以上挿入できない場合がある。In the above-mentioned prior art plug-in type pipe joint, the seal with the pipe R is performed by an O-ring packing V mounted in the joint main body. The sealing action is unstable because the compression is performed only by the outer peripheral surface. Further, when the pipe R is pulled out, the pipe R and the stopper Q are integrally retracted, and the stopper Q is reduced in diameter by the tapered inner peripheral surfaces O and P of the main body, so that the pipe R bites into the pipe R. However, the diameter of the stopper Q does not forcibly act until the tube R is pulled out, and therefore, the tube is not prevented from being pulled out unstably. . On the other hand, if the outer diameter of the pipe is larger than the specified value, the pipe cannot be inserted smoothly, resulting in poor workability. In some cases, the distal end surface of the pipe R hits the stopper Q and cannot be further inserted. Also, in the case of a tube made of a soft material such as a resin tube, when the end of the tube R abuts on the stopper Q, the tube R may bend and cannot be inserted any further.
【０００５】上記従来技術の内後者の差込式管継手で
は、管２を所定量挿入すると溝拡径部材７の指示部９５
が継手本体の窓８に立ち上がって管２の継手本体内への
挿入確認が行われる優れたものであるが、窓８を設けて
あるため管の内面を支持する筒状突出部５の外面にＯリ
ングパッキン６を設けて、管２の内面で確実にシールし
なければならない。しかし通常管の内径寸法は外径寸法
に比べてばらつきが大きく、このため管の内径でシール
しようとすると筒状突出部５の外面にパッキン６の断面
積が大きなパッキンを装着しないとシール性に問題があ
る。断面積が大きいパッキン６を用いるためには筒状突
出部５の肉厚を大きくしなければならず、管２の内径に
比べて筒状突出部５の内径が小さくなり、継手本体１内
を流れる流体の流過抵抗が大きくなって芳しくない問題
がある。本発明は上記の課題を解消して、継手本体内に
接続管を差し込むだけでパッキンを圧縮して確実にシー
ルし、また抜け止め具を縮径させて確実に管の抜け止め
を果たすようにし、更に継手本体内の流体の流過抵抗を
最小限にできる差込式管継手を提供する。[0005] In the latter type of plug-in type pipe joint of the prior art, when the pipe 2 is inserted by a predetermined amount, the indicator 95 of the groove expanding member 7 is inserted.
Is raised in the window 8 of the joint main body and the insertion of the pipe 2 into the joint main body is confirmed. However, since the window 8 is provided, the outer surface of the cylindrical protrusion 5 supporting the inner surface of the pipe is provided. An O-ring packing 6 must be provided to ensure a tight seal on the inner surface of the tube 2. However, the inner diameter of the pipe usually has a greater variation than the outer diameter. Therefore, when sealing is to be performed with the inner diameter of the pipe, the sealing performance will not be improved unless a packing having a large cross-sectional area of the packing 6 is attached to the outer surface of the cylindrical projection 5. There's a problem. In order to use the packing 6 having a large cross-sectional area, the wall thickness of the cylindrical protrusion 5 must be increased, and the inner diameter of the cylindrical protrusion 5 becomes smaller than the inner diameter of the pipe 2. There is a problem that the flow resistance of the flowing fluid becomes large and is not good. The present invention solves the above-mentioned problems, and compresses the packing by simply inserting the connecting pipe into the joint main body, securely seals the pipe, and reduces the diameter of the stopper to reliably prevent the pipe from falling off. Further, the present invention provides a plug-in type pipe joint capable of minimizing a flow resistance of a fluid in the joint body.
【０００６】[0006]
【課題を解決するための手段】本発明の要旨は、継手本
体内に装着したパッキンが継手本体の開口部から挿入し
た接続管に押動されて接続管とシールする管継手におい
て、前記接続管の挿入に伴って前記管継手の外周面に突
出するインジケータを設けたことを特徴とする差込式管
継手である。また、継手本体内に装着したパッキンが継
手本体の開口部から挿入した接続管に押動されて接続管
とシールする管継手において、前記継手本体は接続管の
内周面を支持する筒状部を有し、前記接続管の挿入に伴
って前記パッキンを介して押動されて前記管継手の外周
面に突出するインジケータ部材を設けたことを特徴とす
る差込式管継手である。上記において、前記パッキンに
は、接続管の管端部に当接して押動される管当接壁を設
けるとともに、継手本体と係止して継手本体内のパッキ
ン位置を保持するパッキン係止部を設けたことを特徴と
する差込式管継手である。上記において、前記継手本体
は、前記インジケータが外面に突出するインジケータ穴
を有し、インジケータ穴から継手本体の開口端に向かっ
て順に、前記パッキンの外径より小径のパッキン圧縮内
面と、該圧縮内面より大径のパッキン保持内面とを有す
ことを特徴とする差込式管継手である。SUMMARY OF THE INVENTION The gist of the present invention is to provide a pipe joint in which a packing mounted in a joint body is pushed by a connecting pipe inserted through an opening of the joint body to seal with the connecting pipe. A plug-in type pipe joint characterized in that an indicator protruding from an outer peripheral surface of the pipe joint is provided with insertion of the pipe joint. Further, in a pipe joint in which packing mounted in the joint main body is pushed by a connecting pipe inserted from an opening of the joint main body to seal with the connecting pipe, the joint main body has a tubular portion supporting an inner peripheral surface of the connecting pipe. And an indicator member that is pushed through the packing and protrudes from the outer peripheral surface of the pipe joint when the connection pipe is inserted is provided. In the above, the packing is provided with a pipe contact wall which is pressed against the pipe end of the connecting pipe and is locked with the joint body to hold a packing position in the joint body. Is a plug-in type pipe joint characterized in that: In the above, the joint body has an indicator hole in which the indicator protrudes to the outer surface, and a packing compression inner surface having a diameter smaller than an outer diameter of the packing, in order from the indicator hole toward an opening end of the joint body; A plug-in type pipe joint having a larger-diameter packing holding inner surface.
【０００７】上記において、前記パッキンは、接続管の
端面で押動される管当接壁の内面に前記本体の筒状部と
シールする筒シール部を有し、パッキンが継手本体の圧
縮内面へ押動された際に圧縮されてシールすることを特
徴とする差込式管継手である。上記において、前記継手
本体内に、挿入した接続管の抜け止めをする抜け止め手
段を設けたことを特徴とする差込式管継手である。上記
において、前記パッキンには、該パッキンと一体の前記
接続管を抜け止めする抜け止め手段を設けたことを特徴
とする差込式管継手である。In the above, the packing has a tubular sealing portion for sealing with a tubular portion of the main body on an inner surface of a pipe contact wall pushed by an end face of a connecting pipe, and the packing is moved to a compression inner surface of the joint main body. A plug-in type pipe joint characterized in that it is compressed and sealed when pushed. In the above, there is provided a plug-in type pipe joint, wherein a stopper for preventing the inserted connection pipe from falling off is provided in the joint body. In the above, there is provided a plug-in type pipe joint, wherein the packing is provided with retaining means for retaining the connection pipe integrated with the packing.
【０００８】[0008]
【作用】本発明は上記の構成であって請求項１記載の差
込式管継手では、接続管の挿入に伴ってインジケータが
管継手の外周面に突出するので、接続管を正規の位置ま
で正しく挿入したかを確認することができる。請求項２
の差込式管継手では、継手本体に設けた接続管の内周面
を支持する筒状部によって接続管が本体内に真円状態に
矯正されて挿入され、管の挿入に伴ってパッキンを介し
てインジケータ部材が押動され、管継手の外周面に突出
して接続管が正規の位置まで正しく挿入されたかを確認
できる。請求項３の差込式管継手では、上記パッキンに
管当接壁と継手本体に係止するパッキン係止部を設けて
あるので、接続管端部がパッキンの管当接壁に当接する
までパッキンが継手本体に係止されて移動せず、接続管
の挿入によって管当接壁が押動されるとパッキンが本体
内に進入移動して本体内の進入位置で保持係止され、ま
た接続管を挿入後管が継手内で後退して管当接壁から管
端部が離れてもパッキン係止部が継手本体に係止してい
るのでパッキンが本体進入位置で係止して保持され、パ
ッキンが圧縮された状態及びインジケータが継手外面へ
の指示した状態を保つ。従って接続管とのシール状態が
維持され、また指示状態が維持される。In the plug-in type pipe joint according to the first aspect of the present invention, the indicator protrudes from the outer peripheral surface of the pipe joint with the insertion of the connection pipe. You can check if it was inserted correctly. Claim 2
In the plug-in type pipe fitting, the connecting pipe is straightened into the main body by a tubular portion that supports the inner peripheral surface of the connecting pipe provided in the fitting main body, and is inserted into the main body. The indicator member is pushed through the protrusion, protruding from the outer peripheral surface of the pipe joint, and it can be confirmed whether the connection pipe has been correctly inserted to a proper position. In the plug-in type pipe joint according to the third aspect, since the packing is provided with the pipe contact wall and the packing engaging portion for engaging with the joint body, until the end of the connecting pipe comes into contact with the pipe contact wall of the packing. When the gasket is locked by the joint body and does not move, and the pipe contact wall is pushed by the insertion of the connecting pipe, the gasket enters and moves into the main body and is retained and locked at the entry position in the main body. After inserting the pipe, even if the pipe retreats inside the joint and the pipe end is separated from the pipe contact wall, the packing locking part is locked to the joint body, so the packing is locked and held at the body entry position. , Keep the packing compressed and the indicator pointed to the outer surface of the joint. Therefore, the sealing state with the connecting pipe is maintained, and the instruction state is maintained.
【０００９】請求項４の差込式管継手では、継手本体の
パッキン保持内面でパッキンが保持され、パッキンが管
の挿入によって押動されると、パッキンが圧縮内面に進
入して圧縮されて本体と管をシールし、パッキンの進入
に伴ってインジケータ穴からインジケータが突出して管
の挿入状態を指示する。請求項５の差込式管継手では、
パッキンの管当接壁が接続管の挿入端部に当接して押動
され、パッキンの筒シール部が筒状部外周面とシールし
てインジケータ穴からの流体の流出を防止し、接続管の
押動によってパッキンが圧縮内面へ押動されると突出シ
ール部が圧縮内面で圧縮され、確実なシールが果され
る。請求項６の差込式管継手では、継手本体に設けた抜
け止め手段によって接続管の抜け止めが確実に働き、接
続状態が維持される。請求項７の差込式管継手では、本
体内に挿入した接続管との抜け止め手段をパッキンに設
けてあるので、管継手内に抜け止め部材を別途設ける必
要がなく、コンパクトな差込式管継手が形成される。In the plug-in type pipe joint according to the fourth aspect, the packing is held by the packing holding inner surface of the joint main body, and when the packing is pushed by the insertion of the pipe, the packing enters the compression inner surface and is compressed, so that the main body is compressed. When the gasket enters, the indicator projects from the indicator hole to indicate the inserted state of the tube. In the plug-in type pipe joint according to claim 5,
The pipe contact wall of the packing comes into contact with the insertion end of the connection pipe and is pushed, and the cylindrical seal part of the packing seals with the outer peripheral surface of the cylindrical part to prevent the outflow of fluid from the indicator hole. When the packing is pushed to the inner compression surface by the pushing movement, the protruding seal portion is compressed by the inner compression surface, and a reliable seal is achieved. In the plug-in type pipe joint according to the sixth aspect, the stopper of the connecting pipe is reliably operated by the stopper means provided on the joint body, and the connected state is maintained. In the plug-in type pipe joint according to the seventh aspect, since the packing is provided with means for preventing the connection pipe from being inserted into the main body, there is no need to separately provide a retaining member in the pipe joint, and the plug-in type pipe joint is compact. A fitting is formed.
【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乃至図３は本発明の第１実施例を示す差込式管
継手である。図１は接続管４０を管継手１０内に差し込
む途中の状態を示し、図２は接続管４０を正常に差し込
んで接続した状態を示す接続部の断面図である。管継手
１０は継手本体１１にナット状の本体１２をねじ部１３
で互いに螺合結合して一体に設けてある。本体１１は中
央部に流体が通過する貫通口１９を有して管４０の挿入
口１４側に延びる円筒部材１５を有す。円筒部材１５の
外面は管４０が差し込まれて接続管４０の内周面を支持
する環状の装着部１６となっている。装着部１６の奥端
は環状の縦壁１８を有し、この円周方向外方に装着部１
６から外面に通じるインジケータ穴１７を円周上１〜４
個所設けてある。ここにインジケータ部材３０を装着し
てある。縦壁１８から挿入口１４側へ順に、圧縮内面２
０、圧縮内面２０よりテーパ段部２１を介して１段大径
の保持内面２２を有し、ここに断面Ｌ型の環状パッキン
５０が装着されている。保持内面２２の挿入口側にはナ
ット状本体１２による抜け止め具４１を装着して抜け止
め具４１を縮径するテーパ内面２３を形成してある。Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a plug-in type pipe joint according to a first embodiment of the present invention. FIG. 1 is a cross-sectional view of the connecting portion showing a state in which the connecting pipe 40 is being inserted into the pipe joint 10, and FIG. 2 is a state in which the connecting pipe 40 has been normally inserted and connected. The pipe joint 10 has a nut-shaped main body 12 attached to a joint main body 11 and a screw portion 13.
And are integrally provided by screwing together. The main body 11 has a cylindrical member 15 that has a through hole 19 through which a fluid passes at the center and extends toward the insertion port 14 of the tube 40. The outer surface of the cylindrical member 15 is an annular mounting portion 16 into which the tube 40 is inserted and which supports the inner peripheral surface of the connection tube 40. The back end of the mounting portion 16 has an annular vertical wall 18, and the mounting portion 1
Indicator holes 17 leading to the outer surface from 6
There are several places. Here, the indicator member 30 is mounted. In order from the vertical wall 18 to the insertion port 14 side, the compression inner surface 2
0, a holding inner surface 22 having a one-step larger diameter than a compression inner surface 20 via a tapered step portion 21, and an annular packing 50 having an L-shaped cross section is mounted here. On the insertion opening side of the holding inner surface 22, a stopper 41 formed by the nut-shaped main body 12 is mounted, and a tapered inner surface 23 for reducing the diameter of the stopper 41 is formed.
【００１１】インジケータ部材３３の一例を図６で示
し、拡縮自在な様に一部に切り割りを有す環状本体３１
の外面に２個のインジケータ３２が放射状に突出してお
り、側部にパッキン５０の先端部外面に当接する当接部
３３が張り出している。インジケータ３２は本体１１の
インジケータ穴１７に臨んで挿入しており、当接部３３
がパッキン５０先端部外面の傾斜面５４で押されると、
環状本体３１が拡径してインジケータ３２がインジケー
タ穴１７から突出する。An example of the indicator member 33 is shown in FIG. 6, and the annular main body 31 is partially cut so as to be expandable and contractible.
The two indicators 32 radially protrude from the outer surface of the packing 50, and the contact portion 33 that contacts the outer surface of the tip end of the packing 50 projects from the side. The indicator 32 is inserted facing the indicator hole 17 of the main body 11 and
Is pressed by the inclined surface 54 on the outer surface of the tip of the packing 50,
The annular body 31 expands in diameter, and the indicator 32 projects from the indicator hole 17.
【００１２】パッキン５０は図１、図２で示すごとく断
面が略Ｌ字状で、挿入された接続管４０の外周面４１に
被さる筒部５１、接続管の端部４２に当接して押される
管当接壁５２、継手本体の円筒部材１５外周面と当接し
てシールする筒シール部５３、先端部に傾斜外面５４、
継手本体のテーパ段部２１に係止してパッキン５０の移
動が停止されるとともに継手本体の保持内面２２に保持
される保持外面５６、接続管４０の外周面をシールする
管シール部５７を弾性ゴムで設け、この後端に保持リン
グ５８を一体に固着してある。実施例のパッキン５０で
は保持外面５６の外径は本体圧縮内面２０の内径より大
きくしてあり、保持外面５６が圧縮内面２０へ押動され
圧縮内面２０で圧縮されてシールされる。尚、図３，図
４で示すごとく保持外面５６と傾斜外面５４を結ぶ外面
に継手本体のテーパ段部２１に係止する突出シール部５
５を設け、突出シール部５５が圧縮内面２０へ押動され
て圧縮されシールするように設けても良い。また筒シー
ル部５３及び管シール部５７に圧縮シール部とリップシ
ール部を設けて確実にシールするようにしている。パッ
キン５０は接続管４０の外周面４１とシールするため、
従来のように筒部１５の外面にパッキンを装着する必要
がなく、従って筒部１５の肉厚を最小限に設けることが
でき、従って継手本体の貫通口１９を従来より大きくで
き、流体が通過する流過抵抗を最小限にすることができ
る。The packing 50 has a substantially L-shaped cross section as shown in FIGS. 1 and 2, and is pressed against the cylindrical portion 51 covering the outer peripheral surface 41 of the inserted connecting tube 40 and the end portion 42 of the connecting tube. A pipe abutting wall 52, a cylindrical sealing portion 53 that abuts against and seals the outer peripheral surface of the cylindrical member 15 of the joint body, an inclined outer surface 54 at a distal end portion,
The movement of the packing 50 is stopped by being locked to the tapered step portion 21 of the joint body, and the holding outer surface 56 held on the holding inner surface 22 of the joint body and the pipe seal portion 57 for sealing the outer peripheral surface of the connection pipe 40 are elastically formed. Rubber is provided, and a holding ring 58 is integrally fixed to the rear end. In the packing 50 of the embodiment, the outer diameter of the holding outer surface 56 is larger than the inner diameter of the main body compression inner surface 20, and the holding outer surface 56 is pushed to the compression inner surface 20 to be compressed and sealed by the compression inner surface 20. In addition, as shown in FIGS. 3 and 4, the protruding seal portion 5 which is engaged with the tapered step portion 21 of the joint body is provided on the outer surface connecting the holding outer surface 56 and the inclined outer surface 54.
5 may be provided so that the protruding seal portion 55 is pushed to the compression inner surface 20 to be compressed and sealed. Further, a compression seal portion and a lip seal portion are provided on the tube seal portion 53 and the tube seal portion 57 so as to ensure reliable sealing. The packing 50 seals with the outer peripheral surface 41 of the connection pipe 40.
There is no need to mount a packing on the outer surface of the cylindrical portion 15 unlike the conventional case, so that the wall thickness of the cylindrical portion 15 can be minimized, so that the through hole 19 of the joint body can be made larger than before, and the fluid can pass through. Flow resistance can be minimized.
【００１３】パッキンと一体の保持リング５８は樹脂又
は金属製で、図１のごとく接続管４０が完全に挿入され
るまでは継手本体保持内面２２の入り口に係止してお
り、接続管の端面４２がパッキンの管当接壁５２に突き
当たるまでの間、パッキン５０の移動が係止されて移動
しない。次に接続管端面４２がパッキンの管当接壁５２
に突き当たり、管４０で押動されると保持リング５８が
本体内面の係止から外れて、図２のごとく接続管によっ
てパッキン５０が押動されて保持内面２２内に進入し、
保持リング５８が保持内面２２と係止し、パッキンが接
続管に押動された継手本体内の進入位置に保持される。
従って接続管４０が継手本体内で後退移動して管端４２
が管当接壁５２から離れてもパッキン５０が後退移動せ
ず、パッキンのシール状態が維持される。尚、上記実施
例の固着した保持リング５８に代えて、図４のごとくパ
ッキンのシール部と同じ弾性ゴムで継手本体の保持内面
２２に係止する保持部５９を外面に突出して設け、管端
面４２がパッキンの管当接壁５２に当接するまでの間、
保持部５９による摩擦力で継手本体の保持内面２２と係
止させてパッキン５０の移動を阻止するようにしても良
い。The holding ring 58 integral with the packing is made of resin or metal, and is locked at the entrance of the joint body holding inner surface 22 until the connection pipe 40 is completely inserted as shown in FIG. Until 42 abuts against the pipe contact wall 52 of the packing, the movement of the packing 50 is locked and does not move. Next, the end face 42 of the connecting pipe is connected to the pipe contact wall 52 of the packing.
When pressed by the tube 40, the retaining ring 58 is released from the engagement of the inner surface of the main body, and the packing 50 is pushed by the connecting tube as shown in FIG.
The retaining ring 58 is locked with the retaining inner surface 22, and the packing is retained at the entry position in the joint body pushed by the connecting pipe.
Accordingly, the connecting pipe 40 moves backward in the joint body to change the pipe end 42.
The packing 50 does not move backward even if the gasket moves away from the pipe contact wall 52, and the sealed state of the packing is maintained. In place of the fixed holding ring 58 of the above embodiment, as shown in FIG. 4, a holding portion 59 which is locked to the holding inner surface 22 of the joint main body by the same elastic rubber as the seal portion of the packing is provided on the outer surface so as to protrude. Until 42 contacts the pipe contact wall 52 of the packing,
The movement of the packing 50 may be prevented by engaging the holding inner surface 22 of the joint body with the frictional force of the holding portion 59.
【００１４】更に図５で示すごとくパッキン筒部５１に
保持内面２２に係止する金属製又は樹脂製の保持リング
６０を一体に設けて保持リング６０を継手本体の保持内
面２２に係止させ、パッキン５０が後退移動しないよう
にしても良い。保持リング６０の外周は本体の保持内面
２２より大きくしてあり、パッキン５０が管４０に押動
されて本体内に進入すると、保持リング５８が保持内面
２２に係止してパッキン５０の移動が停止される。また
管４０に引き抜き力が加わって管端４２がパッキン管当
接壁５２から後退しても、パッキン５０が後退移動せ
ず、円筒部材５５とのシール及びインジケータ３２の指
示状態が維持される。尚、管４０に引き抜き力が加わっ
ても、端部に設けた抜け止め具４１が働き、管の引き抜
けが停止されるので、大きな抜け後退移動が生じなく管
４０とのシール状態が維持される。パッキンと一体の保
持リング６０は例えば図７で示す樹脂製又は金属製の保
持リングが使用される。外面がパッキンの保持外面５６
より突出して継手本体の保持内面２２に係止し、内面が
挿入した接続管の外面４１に係止する様に内外面とも鋭
利な面に設けてあり、全体形状は図７のごとく菊座金状
に内外面にヌスミ６２を設けて係止が容易に行われるよ
うにしてある。Further, as shown in FIG. 5, a metal or resin holding ring 60 for locking the holding inner surface 22 is integrally provided on the packing cylinder 51, and the holding ring 60 is locked on the holding inner surface 22 of the joint body. The packing 50 may not be moved backward. The outer circumference of the holding ring 60 is larger than the inner holding surface 22 of the main body, and when the packing 50 is pushed by the pipe 40 and enters the main body, the holding ring 58 is locked on the inner holding surface 22 and the movement of the packing 50 is stopped. Stopped. Further, even if a pulling force is applied to the pipe 40 and the pipe end 42 retreats from the packing pipe contact wall 52, the packing 50 does not retreat, and the seal with the cylindrical member 55 and the indication state of the indicator 32 are maintained. Even if a pulling force is applied to the tube 40, the stopper 41 provided at the end works to stop the tube from being pulled out, so that a large withdrawal and retreat movement does not occur and a sealed state with the tube 40 is maintained. You. As the holding ring 60 integrated with the packing, for example, a resin or metal holding ring shown in FIG. 7 is used. The outer surface is the packing outer surface 56
The inner and outer surfaces are provided on sharp inner and outer surfaces so as to protrude and lock the holding inner surface 22 of the joint body, and the inner surface locks on the outer surface 41 of the inserted connection pipe. On the inner and outer surfaces, a lip 62 is provided to facilitate locking.
【００１５】継手端部に装着した抜け止め具４１は金属
製又は硬質の樹脂からなり、図１、図２で示すごとく、
内周面に複数条の食い込み歯４２と外周面にテーパ面４
３を有し、円周上の一部に縮径可能に切り割りを設けて
ある。管４０が挿入される迄の初期の内周径は接続管４
０の外径とほぼ同じ内径で、管４０を正規に挿入した
後、管に引き抜き力が加わると本体のテーパ面２３で抜
け止め具が縮径され、管外周面に食い込み歯４２が食い
込み、管４０の引き抜け阻止作用が働く。図１の状態か
ら図２のごとく、継手本体内に接続管４０が挿入される
と、管４０は筒状部１５に沿って進入し、管内周面が本
体円筒部材１５で真円に矯正されて支持されながら管４
０の端部４２がパッキンの管当接壁５２に当接する。こ
の間パッキン５０は保持リング５８によって阻止されて
いる。更に管４０を挿入するに伴ってパッキンの管当接
壁５２が管端４２で押動され、図２のごとくパッキン５
０も管装着部１６の奥へ移動する。パッキン５０の進入
移動に伴ってその奥側に装着したインジケータ部材３０
の当接部３３がパッキンのテーパ外面５４に当接してイ
ンジケータ部材３０が拡げられ、インジケータ３２が継
手本体のインジケータ穴１７から突出する。またパッキ
ンの管当接壁内面の筒シール部５３が本体の縦壁１８と
の間で圧縮され、またパッキンの保持外面５６ないし突
出シール部５５が圧縮内面２０で圧縮されるので、内周
側の筒シール部５３が円筒部材１５の外周面を圧縮し、
円筒部材１５との間を確実にシールする。また圧縮内面
でパッキンが圧縮されるので、接続管４０の外周面を圧
縮して接続管４０とも確実にシールする。The stopper 41 attached to the end of the joint is made of metal or hard resin, and as shown in FIGS.
A plurality of biting teeth 42 on the inner peripheral surface and a tapered surface 4 on the outer peripheral surface
3 and a cut is provided on a part of the circumference so as to reduce the diameter. The initial inner diameter before the pipe 40 is inserted is the connecting pipe 4
After the tube 40 is properly inserted with an inner diameter substantially equal to the outer diameter of 0, when the pull-out force is applied to the tube, the stopper is reduced in diameter by the tapered surface 23 of the main body, and the biting teeth 42 bite into the outer peripheral surface of the tube, The pull-out preventing function of the tube 40 works. When the connecting pipe 40 is inserted into the joint main body from the state shown in FIG. 1 as shown in FIG. 2, the pipe 40 enters along the tubular portion 15, and the inner peripheral surface of the pipe is corrected to a perfect circle by the main body cylindrical member 15. Tube 4 while supported
The zero end 42 abuts against the pipe abutment wall 52 of the packing. During this time, the packing 50 is blocked by the retaining ring 58. Further, as the pipe 40 is inserted, the pipe contact wall 52 of the packing is pushed at the pipe end 42, and as shown in FIG.
0 also moves to the back of the tube mounting section 16. The indicator member 30 attached to the back side of the packing 50 as it moves in
The abutting portion 33 abuts against the tapered outer surface 54 of the packing, the indicator member 30 is expanded, and the indicator 32 projects from the indicator hole 17 of the joint body. Further, the cylindrical seal portion 53 on the inner surface of the pipe contact wall of the packing is compressed between the vertical wall 18 of the main body and the holding outer surface 56 or the protruding seal portion 55 of the packing is compressed on the compressed inner surface 20. Of the cylindrical member 15 compresses the outer peripheral surface of the cylindrical member 15,
The space between the cylindrical member 15 is securely sealed. In addition, since the packing is compressed on the inner surface of the compression, the outer peripheral surface of the connection pipe 40 is compressed to securely seal the connection pipe 40.
【００１６】図８は本発明の更に別の実施例を示すもの
で、本実施例で示すパッキン６５は、傾斜外面５４にそ
の前方外方に延びる周方向複数本のインジケータ６１を
一体で設けた。パッキン６５は継手本体内の入り口付近
にあり、パッキンと一体の保持リング６０は入り口テー
パ面２４に係止している。接続管４０が挿入されると、
パッキン内の保持リング６０が挿入方向に傾斜している
ので、保持リング６０の内面を管が容易に通過しパッキ
ンを押動する。管４０を挿入した後で管に引き抜き力が
加わると、保持リング６０の内面が管４０の外面に食い
込んで係止し、同時に保持リング６０の外面が本体の保
持内面２２に食い込んで係止する。このため接続管４０
の抜け止め作用と同時にパッキン６５の移動停止作用が
同時に行われる。更にパッキン６５の傾斜外面５４に設
けたゴム製のインジケータ６１が、パッキン６５の進入
移動に伴って本体のインジケータ穴１７から突出する。
このため前記実施例と同様、接続管４０が正常に挿入さ
れ接続が画一に行われたかの確認を、継手の外部から行
うことができる。この実施例の場合、前記実施例のイン
ジケータ部材３０や抜け止め具４１を設ける必要がない
ので、継手全体をコンパクトに形成できる。FIG. 8 shows still another embodiment of the present invention. In a packing 65 shown in this embodiment, a plurality of indicators 61 in the circumferential direction extending outward in front of the inclined outer surface 54 are integrally provided. . The packing 65 is located near the entrance in the joint body, and the retaining ring 60 integral with the packing is engaged with the entrance taper surface 24. When the connection pipe 40 is inserted,
Since the retaining ring 60 in the packing is inclined in the insertion direction, the tube easily passes through the inner surface of the retaining ring 60 and pushes the packing. When a pulling force is applied to the tube after inserting the tube 40, the inner surface of the retaining ring 60 bites into the outer surface of the tube 40 and locks, and at the same time, the outer surface of the retaining ring 60 bites and locks in the holding inner surface 22 of the main body. . For this reason, the connecting pipe 40
And the movement stopping operation of the packing 65 is performed simultaneously. Further, a rubber indicator 61 provided on the inclined outer surface 54 of the packing 65 projects from the indicator hole 17 of the main body as the packing 65 enters and moves.
Therefore, similarly to the above-described embodiment, it is possible to confirm from the outside of the joint whether the connection pipe 40 is normally inserted and the connection is made uniformly. In the case of this embodiment, since it is not necessary to provide the indicator member 30 and the stopper 41 of the above embodiment, the entire joint can be formed compact.
【００１７】図９は更に別の実施例を示すもので、本実
施例では継手本体１１のパッキン保持内面を、周方向の
凹凸面２５に設けた。この凹凸面２５によってパッキン
５０が係止され、継手内に挿入される管４０がパッキン
の管当接壁５２に当接するまでの間、パッキンが継手本
体内に保持係止され、インジケータ３０による正しい挿
入指示確認が行われる。FIG. 9 shows still another embodiment. In this embodiment, the packing holding inner surface of the joint main body 11 is provided on the uneven surface 25 in the circumferential direction. The packing 50 is retained by the uneven surface 25 until the pipe 40 inserted into the joint comes into contact with the pipe contact wall 52 of the packing. The insertion instruction is confirmed.
【００１８】[0018]
【発明の効果】以上のごとく本発明の差込式管継手は、
接続管を差し込むだけでシールと管の抜け止めが果たさ
れ、更に管の差込が正しく行われたかの管挿入確認が行
える。またパッキンによるシールは管の外周面で行われ
るため、管の内面に挿入されて管内面が支持される継手
本体筒部の肉厚を最小限の肉厚にでき、小口径の管を接
続する差込継手であっても継手内を通過する流体の通過
穴径を稼ぐことができる。従って継手の流体流過抵抗を
最小限にでき、流過抵抗が少ない差込式管継手を形成す
ることができる。As described above, the plug-in type pipe joint of the present invention is
By simply inserting the connecting pipe, the seal and the pipe are prevented from coming off, and furthermore, the pipe insertion can be confirmed whether the pipe has been correctly inserted. In addition, since sealing by packing is performed on the outer peripheral surface of the pipe, the wall thickness of the joint main body cylindrical portion inserted into the inner surface of the pipe and supported by the inner surface of the pipe can be minimized, and a small diameter pipe is connected. Even in the case of a plug-in joint, the passage hole diameter of the fluid passing through the joint can be increased. Therefore, the fluid flow resistance of the joint can be minimized, and a plug-in type pipe joint having a small flow resistance can be formed.
【図１】 本発明の一実施例を示すの管挿入途中の縦断
面図である。FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention while a tube is being inserted.
【図２】 本発明の一実施例を示す管挿入後の部分断面
図である。FIG. 2 is a partial cross-sectional view showing an embodiment of the present invention after insertion of a tube.
【図３】 本発明の一実施例を示すパッキンの断面図で
ある。FIG. 3 is a sectional view of a packing showing one embodiment of the present invention.
【図４】 別の実施例を示すパッキンの断面図である。FIG. 4 is a sectional view of a packing showing another embodiment.
【図５】 更に別の実施例を示すパッキンの断面図であ
る。FIG. 5 is a cross-sectional view of a packing showing still another embodiment.
【図６】 本発明の一実施例を示すインジケータ部材の
斜視図である。FIG. 6 is a perspective view of an indicator member showing one embodiment of the present invention.
【図７】 図８のパッキン６５に嵌着する保持リング６
２の斜視図である。7 is a holding ring 6 fitted to the packing 65 of FIG.
FIG. 2 is a perspective view of FIG.
【図８】 本発明の更に別の実施例を示す管挿入後の部
分断面図である。FIG. 8 is a partial sectional view after insertion of a tube, showing still another embodiment of the present invention.
【図９】 本発明の更に別の実施例を示す管挿入途中の
部分断面図であるFIG. 9 is a partial sectional view showing a still further embodiment of the present invention while a tube is being inserted.
【図１０】 従来技術を示す部分断面図である。FIG. 10 is a partial cross-sectional view showing a conventional technique.
【図１１】 別の従来技術を示す部分断面図である。FIG. 11 is a partial sectional view showing another conventional technique.
１０ 差込式管継手 １１ 継
手本体 １２ ナット状本体口 １３ 螺
合ねじ １４ 挿入口 １５ 円
筒部材 １６ 管装着部 １７ イン
ジケータ穴 １８ 本体の縦壁 １９ 貫通
口 ２０ 圧縮内面 ２１ テー
パ段部 ２２ 保持内面 ２３ テー
パ内面 ３０ インジケータ部材 ３１ 環状
本体 ３２ インジケータ ３３ パッ
キンとの当接部 ４０ 接続管 ４１ 接続
管の外周面 ５０、６５ パッキン ５１ 円筒
部 ５２ 管当接壁 ５３ 筒シ
ール部 ５４ パッキン傾斜面 ５５ 突出
シール部 ５６ 保持外面 ５７ 管シ
ール部 ５８、６０，６２ 保持リング ５９ パッ
キンの保持部 ６１ パッキンのインジケータDESCRIPTION OF SYMBOLS 10 Plug-in pipe joint 11 Joint main body 12 Nut-shaped main body opening 13 Screw-in screw 14 Insertion opening 15 Cylindrical member 16 Pipe mounting part 17 Indicator hole 18 Vertical wall of main body 19 Through-hole 20 Compression inner surface 21 Tapered step 22 Holding inner surface 23 Tapered inner surface 30 Indicator member 31 Annular body 32 Indicator 33 Contact portion with packing 40 Connection tube 41 Outer peripheral surface of connection tube 50, 65 Packing 51 Cylindrical portion 52 Pipe contact wall 53 Tube seal portion 54 Packing inclined surface 55 Projection seal portion 56 Holding outer surface 57 Pipe seal portion 58, 60, 62 Holding ring 59 Packing holding portion 61 Packing indicator
Claims (7)
本体の開口部から挿入した接続管に押動されて接続管と
シールする管継手において、 前記接続管の挿入に伴って前記管継手の外周面に突出す
るインジケータを設けたことを特徴とする差込式管継
手。1. A pipe joint in which a packing mounted in a joint body is pushed by a connecting pipe inserted from an opening of the joint body to seal with the connecting pipe, wherein an outer periphery of the pipe joint is inserted with insertion of the connecting pipe. A plug-in type pipe joint characterized in that an indicator protruding from a surface is provided.
本体の開口部から挿入した接続管に押動されて接続管と
シールする管継手において、 前記継手本体は接続管の内周面を支持する筒状部を有
し、前記接続管の挿入に伴って前記パッキンを介して押
動されて前記管継手の外周面に突出するインジケータ部
材を設けたことを特徴とする差込式管継手。2. A pipe joint in which packing mounted in a joint body is pushed by a connecting pipe inserted through an opening of the joint body to seal with the connecting pipe, wherein the joint body supports an inner peripheral surface of the connecting pipe. An insertion-type pipe joint, comprising: a tubular portion; and an indicator member which is pushed through the packing when the connection pipe is inserted and protrudes from an outer peripheral surface of the pipe joint.
当接して押動される管当接壁を設けるとともに、継手本
体と係止して継手本体内のパッキン位置を保持するパッ
キン係止部を設けたことを特徴とする請求項１乃至２記
載の差込式管継手。3. The packing according to claim 1, further comprising a pipe contact wall which is pressed against the pipe end of the connecting pipe, and which is engaged with the joint body to maintain a packing position in the joint body. 3. The plug-in type pipe joint according to claim 1, further comprising a stop portion.
外面に突出するインジケータ穴を有し、インジケータ穴
から継手本体の開口端側に向かって順に、前記パッキン
の外径より小径のパッキン圧縮内面と、該圧縮内面より
大径のパッキン保持内面とを有すことを特徴とする請求
項１乃至３記載の差込式管継手。4. The joint body has an indicator hole in which the indicator protrudes to an outer surface, and a packing compression inner surface having a diameter smaller than an outer diameter of the packing in order from the indicator hole toward an opening end side of the joint body; The plug-in type pipe joint according to claim 1, further comprising a packing holding inner surface having a diameter larger than that of the compression inner surface.
押動される管当接壁の内面に前記継手本体の筒状部とシ
ールする筒シール部を有し、パッキンが継手本体内の圧
縮内面へ押動された際に圧縮されてシールすることを特
徴とする請求項１乃至４記載の差込式管継手。5. The packing has a tubular seal portion for sealing with a tubular portion of the joint main body on an inner surface of a pipe contact wall pushed by an end face of the connection pipe, and the packing is formed by compression in the joint main body. The plug-in type pipe joint according to any one of claims 1 to 4, wherein the pipe joint is compressed and sealed when pushed to the inner surface.
抜け止めをする抜け止め手段を設けたことを特徴とする
請求項１乃至５記載の差込式管継手。6. The plug-in type pipe joint according to claim 1, further comprising a retaining means for retaining the inserted connection pipe in the joint main body.
の前記接続管を抜け止めする抜け止め手段を設けたこと
を特徴とする請求項１乃至６記載の差込式管継手。7. The plug-in type pipe joint according to claim 1, wherein said packing is provided with retaining means for retaining said connecting pipe integrated with said packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000028577A JP2001221386A (en) | 2000-02-07 | 2000-02-07 | Spigot type pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000028577A JP2001221386A (en) | 2000-02-07 | 2000-02-07 | Spigot type pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001221386A true JP2001221386A (en) | 2001-08-17 |
Family
ID=18553962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000028577A Pending JP2001221386A (en) | 2000-02-07 | 2000-02-07 | Spigot type pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001221386A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005024283A1 (en) * | 2003-09-08 | 2005-03-17 | Kanghoon Park | Pipe connector |
| JP2008281075A (en) * | 2007-05-09 | 2008-11-20 | Sankoo:Kk | Insert joint for corrugated pipe |
| JP2010065769A (en) * | 2008-09-11 | 2010-03-25 | Tabuchi Corp | Pipe joint |
| JP2013019472A (en) * | 2011-07-11 | 2013-01-31 | Joplax Co Ltd | Pipe joint |
| WO2013004376A3 (en) * | 2011-07-04 | 2013-04-04 | Voss Automotive Gmbh | Sealing arrangement for sealing a multilayer media line |
| JP2014070720A (en) * | 2012-10-01 | 2014-04-21 | Tabuchi Corp | Pipe joint |
| FR3088405A1 (en) * | 2020-01-16 | 2020-05-15 | Parker Hannifin Emea Sarl | Connection device with connection indicator |
| US11187361B2 (en) * | 2017-06-09 | 2021-11-30 | Byung Sub Kim | Pipe coupler having function of covering pipe |
-
2000
- 2000-02-07 JP JP2000028577A patent/JP2001221386A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005024283A1 (en) * | 2003-09-08 | 2005-03-17 | Kanghoon Park | Pipe connector |
| JP2008281075A (en) * | 2007-05-09 | 2008-11-20 | Sankoo:Kk | Insert joint for corrugated pipe |
| JP2010065769A (en) * | 2008-09-11 | 2010-03-25 | Tabuchi Corp | Pipe joint |
| WO2013004376A3 (en) * | 2011-07-04 | 2013-04-04 | Voss Automotive Gmbh | Sealing arrangement for sealing a multilayer media line |
| JP2013019472A (en) * | 2011-07-11 | 2013-01-31 | Joplax Co Ltd | Pipe joint |
| JP2014070720A (en) * | 2012-10-01 | 2014-04-21 | Tabuchi Corp | Pipe joint |
| US11187361B2 (en) * | 2017-06-09 | 2021-11-30 | Byung Sub Kim | Pipe coupler having function of covering pipe |
| FR3088405A1 (en) * | 2020-01-16 | 2020-05-15 | Parker Hannifin Emea Sarl | Connection device with connection indicator |
| WO2021144459A1 (en) * | 2020-01-16 | 2021-07-22 | Parker Hannifin Emea Sarl | Connecting device with connection indicator |
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