JP3513471B2 - Pipe fittings - Google Patents
Pipe fittingsInfo
- Publication number
- JP3513471B2 JP3513471B2 JP2000199146A JP2000199146A JP3513471B2 JP 3513471 B2 JP3513471 B2 JP 3513471B2 JP 2000199146 A JP2000199146 A JP 2000199146A JP 2000199146 A JP2000199146 A JP 2000199146A JP 3513471 B2 JP3513471 B2 JP 3513471B2
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- pressing member
- pipe
- locking piece
- female
- 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 - Fee Related
Links
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【発明の属する技術分野】本発明は、各種の配管、水栓
金具等に供される管継手に関するものであり、特に、圧
力が作用している状態であっても容易に取り外すことの
できる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 pipe joint used for various pipes, faucet fittings, and the like, and particularly to a pipe which can be easily removed even when pressure is applied. It concerns a joint.
【０００２】[0002]
【従来の技術】出願人は既に、不用意な離脱を防止しつ
つ、離脱の際には簡単に取り外しができる管継手を提案
している。即ち、特願平１１−８９５８５号において開
示した管継手は、図６に示すように、内周にシール材嵌
め込み用周溝を形成した雌体１と、図示しない管体の外
周溝に嵌まる押圧部材１１を支持する内カラー８と、内
カラー８を付勢するバネ材７と、雌体１に固着され内カ
ラー８とバネ材７とを覆う外カラー１２とを設け、雌体
１とバネ材７と内カラー８とを順に直列に配置したもの
である。そして、外カラー１２にバネ材７の収縮時にお
ける押圧部材１１の移動空間１４を設けると共に段部Ｃ
を設け、外カラー１２に摺動可能に取り付けられたスリ
ーブ１７の内面に部分的に設けられた係止片Ａと、段部
Ｃとが当接するようにしたものである。また、スリーブ
１７のフランジ１８の内面は、内カラー８と当接するよ
うになされている。2. Description of the Related Art The applicant has already proposed a pipe joint which can be easily removed when it is detached while preventing inadvertent detachment. That is, as shown in FIG. 6, the pipe joint disclosed in Japanese Patent Application No. 11-895585 fits in a female body 1 having a peripheral groove for fitting a sealing material in the inner periphery and an outer peripheral groove of a pipe body (not shown). The inner collar 8 that supports the pressing member 11, the spring member 7 that biases the inner collar 8, and the outer collar 12 that is fixed to the female body 1 and covers the inner collar 8 and the spring member 7 are provided. The spring material 7 and the inner collar 8 are sequentially arranged in series. The outer collar 12 is provided with a moving space 14 for the pressing member 11 when the spring member 7 contracts, and the step C
Is provided so that the locking piece A partially provided on the inner surface of the sleeve 17 slidably attached to the outer collar 12 and the step C contact each other. Further, the inner surface of the flange 18 of the sleeve 17 contacts the inner collar 8.
【０００３】このように構成された管継手にあっては、
完全に結合された図７に示す状態では、管体２０を引き
抜くために力を入れた場合、あるいは管体２０内に流体
を流した場合、すなわち、管体２０を引き抜く方向に力
が働いた場合には、押圧部材１１は外カラー１２のテー
パー部１３に押し付けられて拘束され、このままでは周
溝２５内から飛び出ることができない。しかも、スリー
ブ１７の係止片Ａが外カラー１２の段部Ｃと当接するた
め、スリーブ１７を雌体１側に押すことができない状態
となっている。従って、不用意にスリーブ１７を押し込
む力を加えたとしても、実際に内カラー８を押し込むこ
とはできないので、管体２０の離脱が防止されるのであ
る。In the pipe joint constructed as described above,
In the completely connected state shown in FIG. 7, when a force is applied to pull out the tubular body 20, or when a fluid is flown into the tubular body 20, that is, a force acts in the direction of pulling out the tubular body 20. In this case, the pressing member 11 is pressed against the taper portion 13 of the outer collar 12 and constrained, and cannot be jumped out of the circumferential groove 25 as it is. Moreover, since the locking piece A of the sleeve 17 contacts the step C of the outer collar 12, the sleeve 17 cannot be pushed to the female body 1 side. Therefore, even if a force for pushing the sleeve 17 inadvertently is applied, the inner collar 8 cannot be pushed in actually, so that the tubular body 20 is prevented from coming off.
【０００４】一方、管体２０を管継手より離脱させる場
合には、つまみ部Ｂを持ってスリーブ１７を楕円形に変
形させてやればよい。すると、図８に示すように、スリ
ーブ１７の係止片Ａが外カラー１２の段部Ｃより上にな
って、スリーブ１７を雌体１側に押した際に係止片Ａが
段部Ｃを乗り越えることとなり、離脱状態となるのであ
る。On the other hand, when detaching the pipe body 20 from the pipe joint, the sleeve 17 may be deformed into an elliptical shape by holding the knob B. Then, as shown in FIG. 8, the locking piece A of the sleeve 17 is located above the step C of the outer collar 12, and when the sleeve 17 is pushed toward the female body 1, the locking piece A is stepped C. You will get over and will be in a leaving state.
【０００５】即ち、図８に示すように、スリーブ１７を
押すと内カラー８も雌体１側に移動することとなり、押
圧部材１１及び管体２０もこれと共に移動し、押圧部材
１１が外カラー１２の移動空間１４に至る。そして、こ
の状態で管体２０を引き抜けば、後テーパー部２４に押
圧部材１１が乗り上げ、周溝２５から押圧部材１１が抜
け出て結合状態が解除されるので、管体２０を雌体１か
ら容易に引き抜くことができるようになるのである。That is, as shown in FIG. 8, when the sleeve 17 is pushed, the inner collar 8 also moves to the female body 1 side, and the pressing member 11 and the tubular body 20 move together therewith, so that the pressing member 11 is moved to the outer collar. 12 moving spaces 14 are reached. Then, when the tube body 20 is pulled out in this state, the pressing member 11 rides on the rear taper portion 24, the pressing member 11 is withdrawn from the circumferential groove 25, and the combined state is released, so that the tube body 20 is removed from the female body 1. It can be easily pulled out.
【０００６】このように、既提案の管継手は、自動的に
結合状態がロックされ、不用意な離脱を防止することが
できるだけでなく、離脱の際には簡単に取り外しができ
るという優れた効果を奏するものである。[0006] As described above, the pipe joint proposed has an excellent effect that the coupling state is automatically locked to prevent accidental disengagement and that the disengagement can be easily performed at the time of disengagement. Is played.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、既提案
の管継手によれば、上記の通り、スリーブ１７を押すと
管体２０もこれと共に移動するからこそ、押圧部材１１
が周溝２５から抜け出て結合状態が解除されるようにな
っている。従って、内圧が作用している状態では管体２
０を引き抜く方向に力が働いているため、スリーブ１７
自体を押すことができない。これは、安全上の要請か
ら、内圧を解除しなければ取り外しできないようにあえ
て構成したものであるが、一方で、内圧が作用している
状態であっても取り外しを簡単にしたいという要請があ
ることも事実である。However, according to the previously proposed pipe joint, as described above, when the sleeve 17 is pushed, the pipe body 20 moves together with it, which is the reason why the pressing member 11 is moved.
Is released from the circumferential groove 25 and the coupled state is released. Therefore, when the internal pressure is applied, the tubular body 2
Since the force works in the direction to pull out 0, the sleeve 17
Can't press itself. For safety reasons, this is constructed so that it cannot be removed unless the internal pressure is released, but on the other hand, there is a demand for easy removal even when the internal pressure is acting. That is also the case.
【０００８】そこで本発明は、たとえ圧力が作用してい
ても、必要に応じて簡単に、管継手から挿入した管体を
取り外すことのできる管継手を提供することを目的とす
るものである。[0008] Therefore, an object of the present invention is to provide a pipe joint in which the pipe body inserted from the pipe joint can be easily removed if necessary even if pressure is applied.
【０００９】[0009]
【課題を解決するための手段】本発明は以上の課題を解
決するためになされたものであって、その要旨は、管継
手に挿入された管体の外周溝に押圧部材が嵌り込むこと
によって結合状態となる管継手であって、押圧部材の支
持孔が形成された雌体と、押圧部材を付勢するバネ材
と、雌体とバネ材とを覆って雌体に摺動可能に取り付け
られた円筒状のスリーブとからなり、前記支持孔が軸方
向に長孔とされ、押圧部材及びスリーブがバネ材によっ
て管体挿入口側に常時付勢され、かつ、スリーブの内面
には凸部及び係止片が設けられ、一方、雌体には前記係
止片と当接する段部が設けられており、管体の挿入によ
る押圧部材の押し込みに伴ってバネ材が収縮すると、前
記凸部の雌体側が押圧部材の収納空間となって管体の結
合が可能となり、前記係止片と前記段部との当接の解除
によるスリーブの押し込みに伴ってバネ材が収縮する
と、管体挿入口側が押圧部材の収納空間となって管体の
離脱が可能となると共に、スリーブの押し込みを止めて
バネ材が伸長すると、スリーブが復帰して前記係止片と
前記段部とが再び当接する管継手に係るものである。即
ち、管体の取り外し時にスリーブを押し込んでも、管体
が移動することなく、スリーブ内面の凸部の管体挿入口
側が押圧部材の収納空間となることで、押圧部材が管体
の外周溝から抜け出るようにしたものである。The present invention has been made to solve the above problems, and its gist is to fit a pressing member into an outer peripheral groove of a pipe inserted into a pipe joint. A pipe joint that is in a coupled state, in which a female body in which a supporting hole for a pressing member is formed, a spring member that urges the pressing member, and a slidable member that covers the female member and the spring member and is slidably attached to the female member A sleeve having a cylindrical shape, the support hole is an elongated hole in the axial direction, the pressing member and the sleeve are constantly urged toward the tube insertion opening by a spring material, and the inner surface of the sleeve has a convex portion. And a locking piece, and the female body is provided with a step portion that comes into contact with the locking piece, and when the spring member contracts as the pressing member is pushed by inserting the tubular body, the convex portion is provided. The female body side of the becomes the storage space for the pressing member, and it becomes possible to connect the pipes. When the spring material contracts as the sleeve is pushed in by releasing the contact between the locking piece and the stepped portion, the tubular body insertion port side serves as a space for accommodating the pressing member, and the tubular body can be removed. When the pressing is stopped and the spring member extends, the sleeve returns and the locking piece and the stepped portion come into contact with each other again. That is, even if the sleeve is pushed in when removing the tubular body, the tubular body does not move and the tubular body insertion port side of the convex portion of the inner surface of the sleeve serves as a storage space for the pressing member, so that the pressing member is removed from the outer peripheral groove of the tubular body. It was designed to get out.
【００１０】ここで、雌体は全体を一体とせずに、内周
にシール材嵌め込み用周溝を形成したシール部と押圧部
材の支持孔を形成した結合部との２部分を結合して構成
することもでき、また、バネ材と押圧部材とを直接当て
ず、その間に中間リングを挿入することもできる。Here, the female body is not integrated as a whole, but is formed by connecting two parts, a seal part having a seal material fitting peripheral groove formed on the inner circumference thereof and a connecting part having a supporting hole for a pressing member. Alternatively, the spring member and the pressing member may not be directly contacted with each other, but the intermediate ring may be inserted therebetween.
【００１１】また、スリーブの内面には係止片が設けら
れ、一方、雌体にはこの係止片と当接する段部が設けら
れているので、不用意な離脱を効果的に防止できるよう
になっている。この場合、スリーブは全体を一体とせず
に、雌体との摺動部側の係止片を含む弾性部と凸部を含
む剛性部との２部分から構成することもできる。Further, the inner surface of the sleeve is provided with a locking piece, while the female body is provided with a step portion that comes into contact with this locking piece, so that accidental disengagement can be effectively prevented. It has become. In this case, the sleeve may not be integrated as a whole, but may be composed of two parts, an elastic part including a locking piece on the sliding part side with the female body and a rigid part including a convex part.
【００１２】[0012]
【発明の実施の形態】本発明は上記のような構造を有す
るため、たとえ圧力が作用していても、必要に応じて簡
単に、管継手から挿入した管体を取り外すことができ
る。即ち、結合された管継手と管体にあって、スリーブ
を管継手側に押し込む。この際、スリーブの内面に設け
られた凸部によってバネ材が収縮するだけで、押圧部材
が移動することはなく、管体が移動することもない。従
って、管体に作用する圧力の有無にかかわらず、スリー
ブの押し込みにはバネ材の付勢に反する程度の力だけで
充分なのである。BEST MODE FOR CARRYING OUT THE INVENTION Since the present invention has the above-described structure, the inserted pipe can be easily removed from the pipe joint if necessary even if pressure is applied. That is, the sleeve is pushed into the pipe joint side in the joined pipe joint and pipe body. At this time, only the spring member is contracted by the convex portion provided on the inner surface of the sleeve, the pressing member does not move, and the tube does not move. Therefore, irrespective of the presence or absence of pressure acting on the pipe body, a force that opposes the biasing force of the spring material is sufficient for pushing the sleeve.
【００１３】また、スリーブの押し込みにより、押圧部
材上にあったスリーブ内面の凸部が移動し、押圧部材上
にはその収納空間ができることとなる。従って、押圧部
材が凸部の管体挿入口側の収納空間に移動することが可
能になり、押圧部材が管体の外周溝から抜け出せるよう
になるので、管体が取り外しできることとなるのであ
る。Further, when the sleeve is pushed, the convex portion on the inner surface of the sleeve, which was on the pressing member, is moved, and a storage space for the housing is formed on the pressing member. Therefore, the pressing member can be moved into the storage space on the tube body insertion port side of the convex portion, and the pressing member can be pulled out from the outer peripheral groove of the tube body, so that the tube body can be removed.
【００１４】一方、管体の結合も極めて簡単となってい
る。即ち、管体が離脱している状態にあっては、押圧部
材及びスリーブがバネ材によって管体挿入口側に付勢さ
れている。この状態では、押圧部材上にスリーブ内面の
凸部が存在しているが、管体の挿入によって押圧部材が
バネ材の付勢に反して押し込まれる。この際、押圧部材
の支持孔が軸方向に長孔とされているので、押圧部材だ
けが長孔分だけ移動してスリーブは移動しない。On the other hand, the connection of the tubes is also extremely simple. That is, when the pipe is separated, the pressing member and the sleeve are biased toward the pipe insertion opening by the spring material. In this state, the convex portion of the inner surface of the sleeve is present on the pressing member, but the pressing member is pushed against the bias of the spring member by the insertion of the tubular body. At this time, since the support hole of the pressing member is elongated in the axial direction, only the pressing member moves by the length of the elongated hole and the sleeve does not move.
【００１５】すると、押圧部材が直上にあったスリーブ
内面の凸部から逃れ、凸部の雌体側の収納空間に移動す
ることが可能になる。従って、押圧部材が管体の外周上
に乗り上がり、その後、更なる管体の挿入によって管体
の外周溝に嵌まり込む。そして、この状態において押圧
部材上にスリーブ内面の凸部が存在することとなり、管
体の外周溝に押圧部材が拘束されて結合状態となるので
ある。Then, the pressing member can escape from the convex portion on the inner surface of the sleeve which is located immediately above and can be moved to the storage space on the female body side of the convex portion. Therefore, the pressing member rides on the outer periphery of the pipe body, and then is fitted into the outer peripheral groove of the pipe body by further insertion of the pipe body. Then, in this state, the convex portion of the inner surface of the sleeve is present on the pressing member, and the pressing member is restrained by the outer peripheral groove of the tubular body to be in the connected state.
【００１６】なお、押圧部材の支持孔を形成した雌体に
は、内周にシール材嵌め込み用周溝も形成されるが、こ
のシール部と押圧部材の支持孔を形成した結合部とは一
体構造とすることも、それぞれの部分を別体とした結合
構造とすることもできる。一体とするか別体とするか
は、それぞれの部分に必要な材質、管継手の組み立て易
さ等によって決定する。The female body having the supporting hole for the pressing member is also provided with a peripheral groove for fitting a sealing material on the inner periphery. The sealing portion and the connecting portion having the supporting hole for the pressing member are integrally formed. It may be a structure or a combined structure in which each part is a separate body. Whether it is integrated or separate is determined by the material required for each part, the ease of assembling the pipe joint, and the like.
【００１７】また、押圧部材を付勢するバネ材は直接押
圧部材に接触させてもよいが、安定した付勢力を確保す
るためには、バネ材と押圧部材との間に中間リングを挿
入することが好ましい。The spring member for urging the pressing member may be brought into direct contact with the pressing member. However, in order to secure a stable urging force, an intermediate ring is inserted between the spring member and the pressing member. It is preferable.
【００１８】更に、結合後の管体の不用意な離脱を防止
するために、スリーブの内面には係止片が設けられ、一
方、雌体にはこの係止片と当接する段部が設けられてい
る。この場合、スリーブにおける少なくとも雌体との摺
動部側の係止片を含む部分が弾性を有するようにし、円
筒状のスリーブが楕円形に変形できるようにすることが
好ましい。Further, in order to prevent accidental disengagement of the tubular body after joining, a locking piece is provided on the inner surface of the sleeve, while a step portion is provided on the female body to abut the locking piece. Has been. In this case, it is preferable that at least a portion including the locking piece on the sliding portion side with the female body has elasticity so that the cylindrical sleeve can be deformed into an elliptical shape.
【００１９】即ち、結合された状態にあっては、スリー
ブの内面に設けられた係止片がストッパーの段部と当接
し、スリーブの管継手側への移動が阻止されるため、離
脱不能となる。一方、管継手から管体を離脱させる場合
には、円筒状のスリーブをつまんで楕円形に変形させれ
ばよい。すると、係止片がストッパーの段部よりも上側
に位置することとなり、スリーブを管継手側に押せば係
止片が段部を乗り越えて移動可能となり、管体の離脱が
可能となるのである。That is, in the coupled state, the locking piece provided on the inner surface of the sleeve comes into contact with the step portion of the stopper, and the movement of the sleeve toward the pipe joint side is prevented, so that the sleeve cannot be detached. Become. On the other hand, when detaching the pipe from the pipe joint, the cylindrical sleeve may be pinched and deformed into an elliptical shape. Then, the locking piece is positioned above the stepped portion of the stopper, and if the sleeve is pushed toward the pipe joint side, the locking piece can move over the stepped portion and the tubular body can be detached. .
【００２０】ここで、管体を離脱させるべくスリーブを
つまんで楕円形に変形させた際、係止片が段部より上側
に位置するようにするには、スリーブの内面とストッパ
ーの段部の上面との隙間をＬ１、スリーブの係止片とス
トッパーの段部との当接幅をＬ２としたとき、Ｌ１≧Ｌ
２となるようにすることが好ましい。何故なら、スリー
ブをつまむことにより変形した楕円形の短軸は、両側で
それぞれＬ１づつもとの直径より短くなる一方で、長軸
は、それぞれＬ１づつ長くなる。従って、Ｌ１がＬ２と
同等以上であれば、係止片が段部を簡単に乗り越え可能
となるからである。Here, when the sleeve is pinched and deformed into an elliptical shape in order to separate the tubular body, in order to locate the locking piece above the step, the inner surface of the sleeve and the step of the stopper are arranged. When the gap between the upper surface is L1 and the contact width between the locking piece of the sleeve and the step of the stopper is L2, L1 ≧ L
It is preferable to set it to 2. This is because the elliptical minor axis deformed by pinching the sleeve is shorter than the original diameter by L1 on both sides, while the major axis is longer by L1. Therefore, if L1 is equal to or greater than L2, the locking piece can easily get over the step.
【００２１】また、スリーブの係止片とストッパーの段
部との当接状態の維持をより信頼性の高いものとするに
は、係止片および段部を逆テーパー状に形成することが
好ましい。何故なら、不用意にスリーブを管継手側に押
してしまったとしても、逆テーパー状であれば係止片が
段部を乗り越え難くなるからである。なお、テーパー角
θとしては、２°以上とすることが好ましい。２°未満
であると乗り越え難さの効果がほとんどないからであ
る。Further, in order to maintain the contact state between the engagement piece of the sleeve and the step portion of the stopper with higher reliability, it is preferable to form the engagement piece and the step portion in a reverse taper shape. . This is because even if the sleeve is inadvertently pushed to the pipe joint side, the locking piece is unlikely to get over the stepped portion if it is in the reverse taper shape. The taper angle θ is preferably 2 ° or more. This is because if it is less than 2 °, there is almost no effect of difficulty in getting over.
【００２２】なお、スリーブは全体を一体的に構成する
こともできるが、雌体との摺動部側の部分と凸部を含む
部分とを別体とした結合構造とすることもできる。一体
とするか別体とするかは、それぞれの部分に必要な材
質、管継手の組み立て易さ等によって決定すればよい
が、要求性能上、雌体との摺動部側を弾性部とし、凸部
を含む部分を剛性部とした結合構造とすることが好まし
い。Although the sleeve may be integrally formed as a whole, it may have a combined structure in which the portion on the sliding portion side with the female body and the portion including the convex portion are separate bodies. Whether to integrate or separate it may be determined by the material required for each part, the ease of assembling the pipe joint, etc., but in terms of required performance, the sliding part side with the female body is the elastic part, It is preferable that the connecting structure has a rigid portion in a portion including the convex portion.
【００２３】また、管体の外周溝に嵌まる押圧部材には
硬質ボール等が使用され、押圧部材を付勢するバネ材と
しては、コイルバネ、皿バネ、筒状のゴム弾性体等が用
いられる。更に、スリーブは合成樹脂でも金属でもよ
い。Further, a hard ball or the like is used as the pressing member fitted in the outer peripheral groove of the tubular body, and a coil spring, a disc spring, a tubular rubber elastic body or the like is used as the spring member for urging the pressing member. . Further, the sleeve may be synthetic resin or metal.
【００２４】[0024]
【実施例】以下、本発明の管継手について実施例をもっ
て更に詳細に説明する。図１は、本発明の管継手におけ
る管体の結合状態を示す半裁断面図である。ここで管継
手は、雌体１が、結合部３とシール部２とで構成され、
結合部３には押圧部材１１の支持孔４が形成されている
と共にシール部２の内周にはシール材５，５の嵌め込み
用周溝が形成されている。また、押圧部材１１はバネ材
７によって中間リング６を介して管体２０の挿入口側に
付勢されている。更に、雌体の結合部３とバネ材７を覆
う円筒状のスリーブ１７が結合部３に摺動可能に取り付
けられている。なお、スリーブ１７の内面には凸部１９
が設けられており、その雌体側及び管体挿入口側が押圧
部材１１の収納空間１５，１６となる。EXAMPLES The pipe joint of the present invention will be described in more detail below with reference to examples. FIG. 1 is a half sectional view showing a joined state of pipe bodies in a pipe joint of the present invention. Here, in the pipe joint, the female body 1 is composed of the joint portion 3 and the seal portion 2,
A support hole 4 for the pressing member 11 is formed in the joint portion 3, and a peripheral groove for fitting the seal members 5, 5 is formed in the inner periphery of the seal portion 2. The pressing member 11 is urged by the spring member 7 toward the insertion port side of the tubular body 20 via the intermediate ring 6. Further, a cylindrical sleeve 17 that covers the female joint portion 3 and the spring member 7 is slidably attached to the joint portion 3. The convex portion 19 is formed on the inner surface of the sleeve 17.
Are provided, and the female body side and the tubular body insertion port side serve as storage spaces 15 and 16 for the pressing member 11.
【００２５】図１に示す結合状態にあっては、スリーブ
１７の内面の上下２箇所に設けられた係止片Ａが雌体の
結合部３の段部Ｃと当接するようになっている。従っ
て、図１に示す状態では、スリーブ１７を管継手側に押
すことはできず、管体２０の不用意な離脱を防止し得る
状態となっている。なお、係止片Ａ及びそれに対向する
雌体の結合部３の段部Ｃは、図２に示すように、逆テー
パー角θ＝８°を有しており、スリーブ１７の内面と当
該段部の上面との隙間Ｌ１＝１ｍｍ、係止片Ａと当該段
部Ｃとの当接幅Ｌ２＝０．５ｍｍである。In the coupled state shown in FIG. 1, the locking pieces A provided at the upper and lower two locations on the inner surface of the sleeve 17 come into contact with the stepped portion C of the coupling portion 3 of the female body. Therefore, in the state shown in FIG. 1, the sleeve 17 cannot be pushed to the pipe joint side, and the pipe 20 can be prevented from being accidentally detached. As shown in FIG. 2, the locking piece A and the stepped portion C of the female coupling portion 3 facing the locking piece A have an inverse taper angle θ = 8 °, and the inner surface of the sleeve 17 and the stepped portion. L1 is 1 mm from the upper surface of the above, and the contact width L2 between the locking piece A and the step C is 0.5 mm.
【００２６】即ち、結合された管体２０の外周溝２５に
押圧部材１１が嵌まり込んでおり、押圧部材１１の上面
は凸部１９によって拘束され、管体挿入口側は雌体の結
合部３の支持孔４に当接して動けない。また、バネ材７
の付勢によって中間リング６が凸部１９及び押圧部材１
１に当接し、押圧部材１１の収納空間１５を閉鎖すると
共に押圧部材１１を支持孔４に当接する方向に付勢して
いる。しかも、内圧があれば、管体２０にはそれを引き
抜く方向に力が作用するので、押圧部材１１は管体２０
の外周溝２５の側壁によって、やはり支持孔４に当接す
る方向に力を受ける。そのため、スリーブ１７を管継手
側に移動して凸部１９の拘束を解除し、押圧部材１１の
上に収納空間１６が来るようにしない限り、結合状態が
維持されるのである。That is, the pressing member 11 is fitted in the outer peripheral groove 25 of the connected pipe body 20, the upper surface of the pressing member 11 is restrained by the convex portion 19, and the connecting portion of the female body is on the pipe body insertion port side. 3 is abutted against the support hole 4 and cannot move. Also, the spring material 7
By the urging force of the
1, the storage space 15 of the pressing member 11 is closed, and the pressing member 11 is urged in the direction of contacting the support hole 4. Moreover, if there is an internal pressure, a force acts on the pipe body 20 in the direction of pulling it out.
The side wall of the outer peripheral groove 25 receives a force also in the direction of coming into contact with the support hole 4. Therefore, the coupled state is maintained unless the sleeve 17 is moved to the pipe joint side to release the restraint of the convex portion 19 so that the storage space 16 is located above the pressing member 11.
【００２７】次に、管体２０を取り外す方法について説
明する。図１の状態において、スリーブ１７の外面の左
右２箇所に設けられた図示しないつまみ部（スリーブの
正面形状は、図６（Ａ）に示すものと同一であるので、
図１のスリーブ１７におけるつまみ部も、図６（Ａ）の
つまみ部Ｂと同一のものである）を持ってスリーブ１７
を楕円形に変形させ、係止片Ａが雌体の結合部３の段部
Ｃより上になるようにする。すると、スリーブ１７を管
継手側に押し込めるようになるので、バネ材７の付勢に
反してスリーブ１７を移動させてやれば、係止片Ａが当
該段部Ｃを乗り越える。すると、図３に示すように、押
圧部材１１がその収納空間１６内に逃げることが可能と
なり、管体２０を容易に取り外すことができるようにな
る。なお、スリーブ１７の押し込みを止めれば、バネ材
７の付勢によってスリーブ１７が元の位置に戻り、係止
片Ａが段部Ｃに落ち込んで図４の状態となる。Next, a method for removing the tubular body 20 will be described. In the state of FIG. 1, knob portions (not shown) provided on the right and left sides of the outer surface of the sleeve 17 (the front shape of the sleeve is the same as that shown in FIG. 6A,
The knob portion of the sleeve 17 of FIG. 1 is also the same as the knob portion B of FIG.
Is deformed into an elliptical shape so that the locking piece A is located above the step C of the connecting portion 3 of the female body. Then, the sleeve 17 can be pushed into the pipe joint side. Therefore, if the sleeve 17 is moved against the bias of the spring member 7, the locking piece A gets over the step C. Then, as shown in FIG. 3, the pressing member 11 can escape into the storage space 16 and the tubular body 20 can be easily removed. When the pushing of the sleeve 17 is stopped, the sleeve 17 returns to its original position by the urging force of the spring material 7, and the locking piece A falls into the step C, resulting in the state of FIG.
【００２８】ここで、本発明の管継手にあっては、上記
した通り、バネ材７の付勢に反してスリーブ１７を管継
手側に押し込みさえすればよく、その際に管体２０を動
かす必要は全くない。従って、たとえ内圧によって管体
２０を引き抜く方向に力が作用していたとしても、その
力は管体２０の取り外し作業に影響を及ぼすことはない
ので、内圧の有無にかかわらず、容易に管体２０を取り
外すことができるのである。Here, in the pipe joint of the present invention, as described above, it suffices to push the sleeve 17 toward the pipe joint side against the bias of the spring member 7, and at that time, the pipe body 20 is moved. There is no need at all. Therefore, even if a force acts in the direction of pulling out the tubular body 20 due to the internal pressure, the force does not affect the detaching work of the tubular body 20, so that the tubular body 20 can be easily removed regardless of the internal pressure. 20 can be removed.
【００２９】一方、管体２０を結合するには、単に管体
２０を雌体のシール部２まで充分に押し込んでやるだけ
でよい。即ち、管体２０の挿入初期においては、図４に
示すように、管体２０の先端は押圧部材１１と接触する
ことなく、シール材５に接触しつつ挿入される。On the other hand, in order to connect the tube body 20, it is sufficient to simply push the tube body 20 to the female seal portion 2 sufficiently. That is, at the initial stage of insertion of the tubular body 20, as shown in FIG. 4, the tip of the tubular body 20 is inserted while contacting the sealing material 5 without contacting the pressing member 11.
【００３０】ここで更に管体２０を挿入して行くと、図
５に示すように、管体２０の外周溝２５の手前の前テー
パー部２３が押圧部材１１に接触し、雌体の支持孔４が
軸方向に長孔とされていることから、バネ材７の付勢に
反して押圧部材１１及び中間リング６が継手深部側に押
し込まれる。すると、中間リング６と凸部１９との間に
収納空間１５が生まれ、押圧部材１１が管体２０の前テ
ーパー部２３を乗り越えて外周溝２５内に落ち込む。そ
して、バネ材７の付勢によって中間リング６が押し戻さ
れて収納空間１５が閉鎖され、図１の結合状態となるの
である。When the tubular body 20 is further inserted here, as shown in FIG. 5, the front taper portion 23 in front of the outer peripheral groove 25 of the tubular body 20 comes into contact with the pressing member 11 to support the female body. Since 4 is an elongated hole in the axial direction, the pressing member 11 and the intermediate ring 6 are pushed into the joint deep side against the bias of the spring member 7. Then, a storage space 15 is created between the intermediate ring 6 and the convex portion 19, and the pressing member 11 rides over the front taper portion 23 of the tubular body 20 and falls into the outer peripheral groove 25. Then, the intermediate ring 6 is pushed back by the urging force of the spring member 7 and the storage space 15 is closed, and the connected state of FIG. 1 is obtained.
【００３１】[0031]
【発明の効果】本発明は、押圧部材又はスリーブの押し
込みに伴うバネ材の収縮時に、スリーブの内面に設けら
れた凸部の雌体側又は管体挿入口側が押圧部材の収納空
間となるので、管体を取り外す際に管体を動かす必要が
全くなく、たとえ圧力が作用していても、必要に応じて
簡単に、管継手から挿入した管体を取り外すことができ
る。As described above, according to the present invention, when the pressing member or the spring member is contracted as the sleeve is pushed in, the female body side of the convex portion provided on the inner surface of the sleeve or the tubular body insertion port side becomes the accommodation space for the pressing member. There is no need to move the pipe when removing the pipe, and even if pressure is applied, the inserted pipe can be easily removed from the pipe joint if necessary.
【図１】図１は、本発明の管継手において、管体の結合
状態を示す半裁断面図である。FIG. 1 is a half-cut sectional view showing a joined state of pipe bodies in a pipe joint of the present invention.
【図２】図２は、本発明の管継手において、スリーブ内
面の係止片と雌体の結合部の段部との位置関係を示す断
面図である。FIG. 2 is a cross-sectional view showing a positional relationship between a locking piece on an inner surface of a sleeve and a step portion of a coupling portion of a female body in the pipe joint of the present invention.
【図３】図３は、本発明の管継手において、管体を取り
外す状態を示す半裁断面図である。FIG. 3 is a half cross-sectional view showing a state where a pipe body is removed in the pipe joint of the present invention.
【図４】図４は、本発明の管継手において、管体の結合
初期の状態を示す図である。[Fig. 4] Fig. 4 is a view showing the initial state of coupling of pipe bodies in the pipe joint of the present invention.
【図５】図５は、本発明の管継手において、管体の結合
途中の状態を示す半裁断面図である。FIG. 5 is a half-cut sectional view showing a state in which pipes are being joined in the pipe joint of the present invention.
【図６】図６は、既提案の管継手を示す図であって、図
６（Ａ）はそのスリーブの正面図、図６（Ｂ）は側面全
体の半裁断面図である。FIG. 6 is a diagram showing a pipe joint proposed in the past, FIG. 6 (A) is a front view of the sleeve, and FIG. 6 (B) is a half-cut sectional view of the entire side surface.
【図７】図７は、既提案の管継手において、管体の結合
状態を示す半裁断面図である。FIG. 7 is a half cross-sectional view showing a joined state of pipe bodies in the already proposed pipe joint.
【図８】図８は、既提案の管継手において、管体を取り
外す状態を示す半裁断面図である。FIG. 8 is a half-cut sectional view showing a state in which a pipe body is removed in the already proposed pipe joint.
１‥雌体 ２‥雌体のシール部 ３‥雌体の結合部 ４‥押圧部材の支持孔 ５‥シール材 ６‥中間リング ７‥バネ材 ８‥内カラー １１‥押圧部材 １２‥外カラー １３‥テーパー部 １４‥移動空間 １５‥雌体側の収納空間 １６‥管体挿入口側の収納空間 １７‥スリーブ １８‥スリーブのフランジ １９‥凸部 ２０‥管体 ２３‥管体の前テーパー部 ２４‥管体の後テーパー部 ２５‥管体の外周溝 Ａ‥係止片 Ｂ‥つまみ部 Ｃ‥段部 Ｌ１‥スリーブの内面とストッパーの段部上面との隙間 Ｌ２‥スリーブの係止片とストッパーの段部との当接幅 θ‥逆テーパー角 1. Female body 2 ... Seal part of female body 3 ... female joint 4 Support hole for pressing member 5 ... Sealing material 6 Middle ring 7. Spring material 8: Inside color 11 ... Pressing member 12 ... Outside color 13 taper 14 ... moving space 15: Storage space on the female side 16: Storage space on the tube insertion side 17 ... Sleeve 18 ... Flange of sleeve 19 ... Convex section 20 ... Tube 23 ... Front taper of tube 24: Rear taper of tube 25 ... Outer groove of pipe A: Locking piece B: Knob part C: step L1: Gap between the inner surface of the sleeve and the upper surface of the step of the stopper L2: Width of contact between sleeve locking piece and stopper step θ: reverse taper angle
Claims (4)
部材が嵌り込むことによって結合状態となる管継手であ
って、押圧部材の支持孔が形成された雌体と、押圧部材
を付勢するバネ材と、雌体とバネ材とを覆って雌体に摺
動可能に取り付けられた円筒状のスリーブとからなり、
前記支持孔が軸方向に長孔とされ、押圧部材及びスリー
ブがバネ材によって管体挿入口側に常時付勢され、か
つ、スリーブの内面には凸部及び係止片が設けられ、一
方、雌体には前記係止片と当接する段部が設けられてお
り、管体の挿入による押圧部材の押し込みに伴ってバネ
材が収縮すると、前記凸部の雌体側が押圧部材の収納空
間となって管体の結合が可能となり、前記係止片と前記
段部との当接の解除によるスリーブの押し込みに伴って
バネ材が収縮すると、管体挿入口側が押圧部材の収納空
間となって管体の離脱が可能となると共に、スリーブの
押し込みを止めてバネ材が伸長すると、スリーブが復帰
して前記係止片と前記段部とが再び当接することを特徴
とする管継手。1. A pipe joint which is brought into a joined state by fitting a pressing member into an outer peripheral groove of a pipe body inserted into the pipe joint, wherein a female body having a supporting hole for the pressing member and a pressing member are provided. A biasing spring member, and a cylindrical sleeve slidably attached to the female member to cover the female member and the spring member,
The support hole is an elongated hole in the axial direction, the pressing member and the sleeve are constantly urged toward the tube insertion opening side by a spring material, and a convex portion and a locking piece are provided on the inner surface of the sleeve. The female body is provided with a step portion that comes into contact with the locking piece, and when the spring member contracts as the pressing member is pushed in by inserting the tubular body, the female body side of the convex portion becomes a storage space for the pressing member. As a result, the tube body can be connected, and when the spring member contracts as the sleeve is pushed in by releasing the contact between the locking piece and the step portion, the tube body insertion port side becomes a storage space for the pressing member. A pipe joint, wherein the pipe body can be detached, and when the pressing of the sleeve is stopped and the spring material extends, the sleeve returns and the locking piece and the step portion come into contact again.
周溝を形成したシール部と、押圧部材の支持孔を形成し
た結合部とから構成されていることを特徴とする請求項
１に記載の管継手。2. The female body is composed of a seal portion having a circumferential groove for fitting a sealing material formed on an inner periphery thereof, and a coupling portion having a support hole for a pressing member. The pipe fitting described in.
ングが挿入されていることを特徴とする請求項１又は２
に記載の管継手。3. The intermediate ring is inserted between the spring member and the pressing member.
The pipe fitting described in.
止片を含む弾性部と、凸部を含む剛性部とから構成され
ていることを特徴とする請求項１に記載の管継手。4. The sleeve according to claim 1, wherein the sleeve is composed of an elastic portion including a locking piece on a sliding portion side with the female body, and a rigid portion including a convex portion. Pipe fittings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000199146A JP3513471B2 (en) | 2000-06-30 | 2000-06-30 | Pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000199146A JP3513471B2 (en) | 2000-06-30 | 2000-06-30 | Pipe fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002013686A JP2002013686A (en) | 2002-01-18 |
| JP3513471B2 true JP3513471B2 (en) | 2004-03-31 |
Family
ID=18697203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000199146A Expired - Fee Related JP3513471B2 (en) | 2000-06-30 | 2000-06-30 | Pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3513471B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424801B (en) * | 2017-08-22 | 2023-12-19 | 台州沃拉消防设备有限公司 | Fire-fighting water pipe joint |
-
2000
- 2000-06-30 JP JP2000199146A patent/JP3513471B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002013686A (en) | 2002-01-18 |
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