JP2726380B2 - Flexible pipe fittings - Google Patents
Flexible pipe fittingsInfo
- Publication number
- JP2726380B2 JP2726380B2 JP5270806A JP27080693A JP2726380B2 JP 2726380 B2 JP2726380 B2 JP 2726380B2 JP 5270806 A JP5270806 A JP 5270806A JP 27080693 A JP27080693 A JP 27080693A JP 2726380 B2 JP2726380 B2 JP 2726380B2
- Authority
- JP
- Japan
- Prior art keywords
- retainer
- flexible pipe
- nut
- joint
- flexible
- 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
Links
Landscapes
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は蛇腹状のフレキシブ
ル管を接続するためのフレキシブル管用継手に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible pipe joint for connecting a bellows-shaped flexible pipe.
【０００２】[0002]
【従来の技術】従来、蛇腹状に形成されたフレキシブル
管（以下、フレキ管ということがある。）を接続するた
めの継手としては、例えば、図５に示す特公平3-3837号
公報に開示されたものがある。この継手とフレキ管を接
続するにあたっては、まず袋ナット83をフレキ管10に挿
通し、波形に係合する内面を有し軸線方向に切り割りを
設けたリテーナ80をその切り割りを開きフレキ管の先端
部に装着する。その後、継手本体88の大径孔85にこれを
嵌入して、袋ナットのめねじ82と継手本体のおねじ84を
螺合してリテーナ80の端面より突出した先端数山分をリ
テーナ80の端面とガスケット89との間に圧着、即ち押し
つぶして接続するというもので、例えば締め込み型と呼
ばれるものである。2. Description of the Related Art Conventionally, a joint for connecting a flexible pipe (hereinafter, sometimes referred to as a flexible pipe) formed in a bellows shape is disclosed in, for example, Japanese Patent Publication No. 3-3837 shown in FIG. Something was done. When connecting this joint to the flexible pipe, first insert the cap nut 83 into the flexible pipe 10 and open the retainer 80 having an inner surface that engages with the waveform and provided with a slit in the axial direction. Attach to the part. Thereafter, this is fitted into the large diameter hole 85 of the joint body 88, and the female thread 82 of the cap nut and the external thread 84 of the joint body are screwed together, and several peaks protruding from the end face of the retainer 80 are formed in the retainer 80. The connection between the end face and the gasket 89 is performed by crimping, that is, crushing, for example, a so-called fastening type.
【０００３】また他に実開平3-73785号公報に開示され
たものがある。この継手は図６に示すように予め継手本
体90と締付け部材91は仮組立され、拡径可能な止め輪93
を締付け部材91の先端面とパッキン92の間に配置して設
け、この止め輪93を拡径させつつくぐり抜けさせてフレ
キ管10を挿入し、その後、締付け部材91を継手本体90に
本格的に増し締めして止め輪93の拡径を阻止しつつ止め
輪93とパッキン92を押し込み、止め輪93よりも前方にあ
るフレキ管の数山分を継手本体の奥壁94に押しつぶして
接続するというもので、例えば増し締め型と呼ばれるも
のである。[0003] Another example is disclosed in Japanese Utility Model Laid-Open No. 3-73785. In this joint, a joint body 90 and a tightening member 91 are preliminarily assembled as shown in FIG.
Is provided between the distal end surface of the tightening member 91 and the packing 92, and the retaining ring 93 is expanded and passed through while the flexible tube 10 is inserted.After that, the tightening member 91 is fully inserted into the joint body 90 in earnest. Pushing the retaining ring 93 and the packing 92 while retightening to prevent the diameter of the retaining ring 93 from expanding, and crushing and connecting several mountains of the flexible pipe ahead of the retaining ring 93 to the back wall 94 of the joint body This is, for example, a so-called retightening type.
【０００４】また、最近ではフレキ管を継手本体内に押
し込むだけで接続が完了するいわゆるワンタッチ型継手
の提案（例えば特開平5-164280号）もあるが、この継手
の場合締め込み作業や増し締め機能がないのでフレキ管
の先端を押しつぶして完全シールが出来ない。特にガス
用の場合シール性能に不安があるものは好ましくなく、
実際上記した２例のように少なくともフレキ管の先端数
山を押しつぶす締め込み型や増し締め型が実用に供して
いる。Further, recently, there has been proposed a so-called one-touch type joint (for example, Japanese Patent Application Laid-Open No. 5-164280) in which connection can be completed simply by pushing a flexible pipe into the joint body. Since there is no function, the tip of the flexible tube is crushed and a complete seal cannot be made. In particular, in the case of gas, those with uneasiness in sealing performance are not preferable,
Actually, as in the above two examples, a tightening type or a retightening type in which at least several tips of the flexible tube are crushed has been put to practical use.
【０００５】[0005]
【発明が解決しようとする課題】上記従来のフレキシブ
ル管用継手のうち前者のものでは、一旦継手部品をばら
した後、組付けるので接続作業に時間と手間がかかると
いう問題がある。もともと摩擦を共なう締付け作業であ
る上にフレキ管の先端数山（２〜５山）を押しつぶすか
ら、この締付け作業には相当の力を必要とし、しかも袋
ナットを何回転もしなければならないのでその分時間が
長くかかる。The former conventional flexible pipe joint has a problem that it takes time and effort to perform the connection work since the joint parts are once separated and then assembled. Since this is a tightening work that originally involves friction, it also crushes several tips (2 to 5 peaks) of the flexible pipe, so this tightening work requires considerable force, and the cap nut has to be turned many times. So it takes a long time.
【０００６】次に後者のものは、予め仮組立てした状態
にありフレキ管を押し込んだ後、増し締めするだけで接
続が完了するので作業時間は比較的短くなる。ところ
が、フレキ管の先端数山、ここでは３山を奥壁に押しつ
ぶすことになっているので、締付け部材の増し締め量は
フレキ管の略３山分のピッチに相当する量に設定されて
いる。ここで問題は、フレキ管を押し込んだ際に必ず３
山が止め輪をくぐり抜けるという保証はなく、その確認
手段もないことである。即ち、１山あるいは２山しかく
ぐり抜けていなくても同じ増し締め量でしかない。この
ような場合増し締めを行っても２山あるいは１山分の締
め込み量が不足し、完全に山を押しつぶすことが出来ず
ここから漏れが生じるという問題がある。この問題を解
決するために、例えば増し締め量に余裕を持たせること
が考えられる。しかしこうすると、締付け部材のねじ込
み回転の数を一層増すことになるので前例と同様、接続
作業に多大の力と時間を要することになるという問題が
ある。[0006] Next, the latter is pre-assembled in a pre-assembled state, and after the flexible tube is pushed in, the connection is completed only by retightening, so that the working time is relatively short. However, since several peaks of the flexible pipe, here three peaks, are to be crushed against the inner wall, the retightening amount of the tightening member is set to an amount corresponding to a pitch of approximately three peaks of the flexible pipe. . The problem here is that when you push in the flexible tube,
There is no guarantee that the mountain will pass through the snap ring, and there is no means to confirm it. That is, even if only one or two peaks are passed through, the same amount of additional tightening is obtained. In such a case, even if the additional tightening is performed, the amount of tightening for two or one mountain is insufficient, and there is a problem that the mountain cannot be completely crushed and leakage occurs from here. In order to solve this problem, for example, it is conceivable to provide a margin for the retightening amount. However, in this case, since the number of screwing rotations of the fastening member is further increased, there is a problem that a large amount of power and time are required for the connection work as in the previous example.
【０００７】本発明は、上記の問題を解決するもので、
接続作業における締付けの力と時間が短縮でき、かつフ
レキ管が正常に押し込まれたことを容易に確認すること
が出来る機能を持ったフレキシブル管用継手を提供する
ことを目的とする。The present invention solves the above problems,
An object of the present invention is to provide a joint for a flexible pipe having a function capable of shortening a tightening force and a time in a connection work, and having a function of easily confirming that a flexible pipe has been normally pushed.
【０００８】[0008]
【課題を解決するための手段】本発明は、軸線方向に複
数個所の切り割りを有し、前端部はフレキシブル管の山
径より小さく、拡径・縮径してフレキシブル管の谷部に
係合するリテーナと、前記リテーナが係止される前部と
フレキシブル管を挿通できる内径と前部におねじを形成
したナットと、前記ナットのおねじに螺合するめねじを
前部に有し、後部には前記リテーナの前端部が嵌入する
縮径孔部と奥壁を形成した継手本体とからなり、前記継
手本体とナットは、フレキシブル管が挿入されその先端
１山が前記リテーナの前端部を乗り越えて奥壁に当接し
たとき、前記リテーナの前端部が前記フレキシブル管先
端１山の次の谷部に係合する位置に予め螺着されている
フレキシブル管用継手である。SUMMARY OF THE INVENTION The present invention has a plurality of cuts in the axial direction, the front end of which is smaller than the ridge diameter of the flexible pipe, and is enlarged and reduced in diameter to engage with the valley of the flexible pipe. A retainer, a front part to which the retainer is locked, an inner diameter capable of inserting a flexible tube, a nut having a thread formed at the front part, and a female thread at the front part to be screwed to the external thread of the nut, the rear part having The joint body and the nut have a reduced diameter hole into which the front end of the retainer fits and a joint body having an inner wall, and the joint body and the nut are inserted with a flexible pipe, and one tip of the flexible tube passes over the front end of the retainer. The flexible pipe joint is screwed in advance at a position where the front end of the retainer engages with the valley next to the tip of the flexible pipe when it comes into contact with the inner wall.
【０００９】上記において、前記リテーナの前端部が前
記フレキシブル管先端１山の次の谷部に係合する位置で
の前記継手本体とナットとの螺着状態を保持するため
に、継手本体とナットとの間にカラーを装着することは
望ましいことである。In the above, in order to maintain a threaded state between the joint body and the nut at a position where a front end of the retainer is engaged with a valley next to one tip of the flexible pipe, a joint body and a nut are provided. It is desirable to attach a collar between them.
【００１０】[0010]
【作用】上記のフレキシブル管用継手によれば、予め継
手本体とナットは、リテーナの前端部と奥壁との間隔が
フレキ管の先端１山の通過しか許容しないような増し締
め量を残して組立てられている。即ち、１山分がリテー
ナの前端部をくぐり抜けると先端は奥壁に衝突しそれ以
上前進できない。この状態で一旦フレキ管を抜こうとす
ると先端１山の次ぎの谷部にリテーナの前端部は嵌まっ
て係合されているのでフレキ管を抜くことはできない。
これによってフレキ管が正常に挿入されたことを確認で
きる。逆にいえば、フレキ管を引き抜こうとして実際抜
けてしまうような場合は、先端は未だ１山もリテーナを
くぐり抜けていないということであり、更に押し込む必
要をここで知ることができる。このような管の差込み確
認機能を有している。また、フレキ管の先端１山分を圧
着、すなわち押し潰すだけで良いのでナットの締め込み
に必要な力と接続に必要な時間が短縮される。According to the above-mentioned joint for flexible pipes, the joint body and the nut are assembled in advance with an additional tightening amount such that the distance between the front end of the retainer and the back wall allows only one tip of the flexible pipe to pass. Have been. That is, when one mountain passes through the front end of the retainer, the front end collides with the inner wall and cannot move forward any further. In this state, if the user tries to pull out the flexible pipe once, the front end of the retainer is fitted and engaged with the valley next to the tip of the tip, so that the flexible pipe cannot be pulled out.
This makes it possible to confirm that the flexible tube has been inserted normally. Conversely, in the case where the flexible tube is actually pulled out while trying to be pulled out, it means that the tip has not yet passed through the retainer at all, and it is possible to know here that it is necessary to push the flexible tube further. It has such a pipe insertion confirmation function. Further, it is only necessary to crimp, that is, crush, the tip of the flexible pipe, that is, the force required for tightening the nut and the time required for connection are reduced.
【００１１】[0011]
【発明の実施の形態】以下本発明の実施例を図面に基づ
いて説明する。図１〜図４は、本発明の一実施例を示す
増し締め型のフレキシブル管用継手の断面図である。そ
れぞれ図１はフレキ管を挿入する前の状態を示す断面
図、図２はフレキ管を挿入したところを示す断面図、図
３は増し締め後の接続完了の状態を示す断面図である。Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 are cross-sectional views of a retightening type flexible pipe joint showing one embodiment of the present invention. FIG. 1 is a cross-sectional view showing a state before the flexible pipe is inserted, FIG. 2 is a cross-sectional view showing a state where the flexible pipe is inserted, and FIG. 3 is a cross-sectional view showing a state after the retightening is completed.
【００１２】このフレキシブル管用継手は継手本体１０
と、ナット２０と、リテーナ３０と、ガスケット４０
と、Ｏリング５０と、水密パッキン６０とからなる。他
方接続しようとするフレキ管７は図２に示すように上記
と同様、先端部より切断部７ａ、押しつぶされる第１山
部７ｂ、第１谷部７ｃ、第２山部７ｄ、第２谷部７ｅ、
………が形成されており、また外面は合成樹脂製の保護
層８によって被覆されている。The joint for a flexible pipe is a joint body 10
, Nut 20, retainer 30, gasket 40
And an O-ring 50 and a watertight packing 60. On the other hand, as shown in FIG. 2, the flexible pipe 7 to be connected has a cutting portion 7a, a first ridge 7b, a first valley 7c, a second valley 7d, a second valley 7d, and a second valley 7 which are crushed from the tip end. 7e,
.. Are formed, and the outer surface is covered with a protective layer 8 made of synthetic resin.
【００１３】継手本体１０は、前部(図面左の入口側)よ
り奥側に向かってナットと螺合するめねじ１５と、めね
じの内径より若干大きい環状凹部１６と、端部に向かっ
て縮径するテーパ内面を有した縮径孔部１７と、貫通孔
１８との間で段差面となった奥壁１９が形成されてい
る。この奥壁１９にはガスケット４０が装着されている
が、ガスケットは必ずしも必要ではなく直接奥壁が形成
されていてもよい。また縮径孔１７はテーパ面で形成し
てあるが、これは平行な内面であっても良い。The joint body 10 has a female screw 15 screwed to the nut from the front part (the inlet side on the left side in the drawing), an annular recess 16 slightly larger than the inner diameter of the female screw, and a contraction toward the end. An inner wall 19 serving as a step surface is formed between the reduced diameter hole portion 17 having a tapered inner surface and a through hole 18. Although a gasket 40 is mounted on the back wall 19, the gasket is not always necessary, and the back wall may be directly formed. Although the diameter-reduced hole 17 is formed as a tapered surface, it may be a parallel inner surface.
【００１４】ナット２０には、その前部(図面右側)より
外周面に本体１０のめねじ１５と螺合するおねじ２３
と、前端部の内面には後述するリテーナ３０を回転自在
かつ軸方向に移動可能に係止させる長凹状の係合溝２４
と、おねじ２３に続く後部外周に増し締め終了後の外部
シールを行うＯリング５０と、フレキ管を挿通できる内
径とフレキ管の外面を密封シールする水密パッキン６０
が形成されている。前記係合溝２４は図のように端部の
内面に設けてもよく、またナットの前端部に環状のアリ
溝を設けてリテーナ３０を回転自在に係合しても良い。The nut 20 has a male screw 23 screwed to the female screw 15 of the main body 10 on the outer peripheral surface from the front part (right side in the drawing).
A long concave engagement groove 24 for locking a retainer 30 described later in a rotatable and axially movable manner on the inner surface of the front end portion.
And an O-ring 50 for external sealing after the completion of retightening on the rear outer periphery following the male screw 23, and a watertight packing 60 for hermetically sealing the inner diameter through which the flexible pipe can be inserted and the outer surface of the flexible pipe.
Are formed. The engaging groove 24 may be provided on the inner surface of the end as shown in the figure, or an annular dovetail groove may be provided on the front end of the nut to rotatably engage the retainer 30.
【００１５】リテーナ３０はフレキ管の抜止め具であっ
て、図４で示すようにフレキ管の外面波山に係止する周
方向に４か所の切り割り溝３５ａ〜３５ｄを有した係止
部３１と、この係止部３１を環状に保持するため係止部
３１の後端部と固着し前記ナット２０の係合溝２４と係
合する係合突起を有する環状のガイド体３２とからな
る。そしてこの係止部３１とガイド体３２からなるリテ
ーナ３０は、ナット２０に回転自在かつ軸方向に移動可
能に係止されている。この場合ガイド体３２は樹脂から
なるので若干内径方向に縮径させたまま係合溝２４内に
挿入してパチンと嵌め込むようにしている。尚、リテー
ナ３０の係止部３１とガイド体３２はフレキ管の先端部
を圧着するのに必要な強度があれば樹脂で一体に形成し
てもよく、また係止部３１を金属でガイド体３２を樹脂
で形成して接着剤で一体に固着してもよく、また両者を
一体の弾性を有する金属で形成しても良い。また係止部
３１の前端部３３は、図ではフレキ管７の第１谷部７ｃ
に係止する一条の突状であるが、フレキ管７の先端１山
を除く波山に係止する複数の波山形状であっても良い。The retainer 30 is a retaining member for the flexible tube, and has a locking portion 31 having four circumferentially cut grooves 35a to 35d for locking to the outer surface of the flexible tube as shown in FIG. And an annular guide body 32 having an engagement projection fixed to the rear end of the engagement portion 31 for holding the engagement portion 31 in an annular shape and engaging with the engagement groove 24 of the nut 20. The retainer 30 including the locking portion 31 and the guide body 32 is rotatably locked to the nut 20 so as to be movable in the axial direction. In this case, since the guide body 32 is made of resin, the guide body 32 is inserted into the engagement groove 24 while being slightly reduced in the inner diameter direction, so that the guide body 32 is fitted with a snap. The locking portion 31 of the retainer 30 and the guide body 32 may be integrally formed of resin as long as the strength required for crimping the distal end portion of the flexible tube is provided. 32 may be formed of a resin and fixed integrally with an adhesive, or both may be formed of an integrally elastic metal. In addition, the front end 33 of the locking portion 31 is, as shown in FIG.
Although it is a single projecting shape that locks on the ridge, a plurality of ridges that lock on the ridge except for one ridge at the tip of the flexible tube 7 may be used.
【００１６】次に本実施例のフレキシブル管用継手の接
続手順について説明する。図１はフレキ管７を挿入する
前の状態を示し、先ず継手本体１０とナット２０は、ナ
ットに係止されたリテーナ３０の前端部３３と奥壁(こ
の場合ガスケット４０を含む)との間隔が、フレキ管の
先端１山が乗り越えて奥壁に当接したとき前端部が次の
谷部(第１谷部)に係合するような増し締め量を残して、
即ち、１山分がリテーナの前端部をくぐり抜けると先端
は奥壁に衝突しそれ以上前進できないような位置まで予
め螺着されている。一方、このときリテーナ３０の係止
部３１も本体１０の環状凹部１６内で拡径できる状態に
なっている。言い替えれば係止部３１の前端部３３が縮
径孔部１７に嵌入しない位置となっている。そして本体
１０とナット２０の端部間にカラー３４を装着してこの
螺合状態を保持している。Next, the procedure for connecting the flexible pipe joint of this embodiment will be described. FIG. 1 shows a state before the flexible pipe 7 is inserted. First, the joint body 10 and the nut 20 are spaced apart from the front end 33 of the retainer 30 and the inner wall (including the gasket 40 in this case). However, when the tip of the flexible pipe gets over one mountain and comes into contact with the back wall, the tightening amount is left so that the front end engages with the next valley (first valley).
That is, when one mountain passes through the front end of the retainer, the front end collides with the back wall and is screwed in advance to a position where it cannot move forward any more. On the other hand, at this time, the locking portion 31 of the retainer 30 is also in a state where the diameter can be expanded in the annular concave portion 16 of the main body 10. In other words, the front end 33 of the locking portion 31 is at a position where it does not fit into the reduced diameter hole 17. A collar 34 is attached between the main body 10 and the end of the nut 20 to maintain this screwed state.
【００１７】次にナット２０の後端部より接続しようと
するフレキ管７を差し込むと、図２に示すようにフレキ
管７の先端第１山部７ｂはリテーナ３０の前端部３３を
押し拡げながらくぐり抜けて先端７ａは奥壁に突き当た
り、これ以上前進できない。この状態で前端部３３は元
の状態に縮径して第１谷部に嵌合係止している。従っ
て、ここでフレキ管７を引き抜こうとしても前端部３３
が谷部に係合して継手本体から抜け出ることはない。さ
らに引き抜こうとすれば前端部は前側の内径面に嵌まり
こんで更に強く引き抜きを阻止できる。逆にここでフレ
キ管が抜けるような場合は、１山もリテーナの前端部３
３をくぐり抜けていないことを意味するものであり、更
に押し込むことが必要であることを確認することにな
る。Next, when the flexible pipe 7 to be connected is inserted from the rear end of the nut 20, the first ridge 7 b at the tip of the flexible pipe 7 pushes and expands the front end 33 of the retainer 30 as shown in FIG. After passing through, the tip 7a hits the inner wall and cannot move forward any further. In this state, the front end 33 is reduced in diameter to the original state and is fitted and locked in the first valley. Therefore, even if the flexible tube 7 is to be pulled out here, the front end 33
Does not come out of the joint body by engaging with the valley. If the user further attempts to pull out, the front end is fitted into the inner diameter surface on the front side, so that pulling out can be more strongly prevented. On the other hand, if the flexible tube comes off here, one ridge of the front end of the retainer 3
3, which means that it is not passed through, and it is confirmed that it is necessary to push it further.
【００１８】次にカラー３４を外し、ナット２０を回転
して継手本体１０に増し締めすると図３で示すようにナ
ット２０の前端面２５がリテーナ３０のガイド体３２後
端面に当接して係止部３１を縮径孔１７内へ押し込む。
従って係止部３１の前端部３３は第１谷部に完全に嵌入
されてフレキ管７の第１山部を縮径させながら奥壁側へ
押し付けられる。このときナット２０は回転されるがリ
テーナ３０はこれと回転自在に係合しているので、リテ
ーナ３０は縮径孔１７で縮径される摩擦抵抗で係止され
ており回転しない。こうして先端の１山分がリテーナと
奥壁との間にガスケットを介して挟着されるので、この
挟着によって完全にフレキ管と継手本体がシールされ
る。また締め付け完了後はＯリング５０とＴ型パッキン
６０によって外部シールが行われ、接続部に腐食水が浸
入しない。以上のようにしてフレキシブル管７の接続が
終了する。Next, when the collar 34 is removed and the nut 20 is rotated to tighten the joint body 10 again, the front end face 25 of the nut 20 comes into contact with the rear end face of the guide body 32 of the retainer 30 as shown in FIG. The part 31 is pushed into the reduced diameter hole 17.
Therefore, the front end portion 33 of the locking portion 31 is completely fitted into the first valley portion and is pressed against the back wall side while reducing the diameter of the first mountain portion of the flexible pipe 7. At this time, the nut 20 is rotated, but the retainer 30 is rotatably engaged with the nut 20. Therefore, the retainer 30 is locked by the frictional resistance reduced in the diameter reducing hole 17 and does not rotate. In this manner, one tip of the tip is sandwiched between the retainer and the inner wall via the gasket, and the sandwiching completely seals the flexible pipe and the joint body. After the tightening is completed, the outer seal is performed by the O-ring 50 and the T-shaped packing 60, so that corrosive water does not enter the connection portion. The connection of the flexible tube 7 is completed as described above.
【００１９】[0019]
【発明の効果】以上説明のごとく本発明のフレキシブル
管用継手は、フレキ管の先端１山分のみを押しつぶすよ
うにしたので接続作業における締付けの力と時間が短縮
できた。更にフレキ管を押し込んでナットを増し締めす
るだけで接続が行えるものであっても、押し込んだとき
フレキ管が正常に押し込まれているか否かを容易に確認
する機能があるので接続ミスを未然に防止することが出
来る。As described above, in the joint for a flexible pipe according to the present invention, since only one tip of the flexible pipe is crushed, the tightening force and time in the connection work can be reduced. Furthermore, even if the connection can be made simply by pushing in the flexible tube and tightening the nut, there is a function to easily check whether the flexible tube is properly pushed in when pushed in. Can be prevented.
【図１】 本発明の一実施の形態を示すフレキシブル管
用継手で、仮組立てされた状態を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a temporarily assembled state of a flexible pipe joint according to an embodiment of the present invention.
【図２】 本発明の一実施の形態を示すフレキシブル管
用継手で、フレキ管を挿入した状態を示す縦断面図であ
る。FIG. 2 is a longitudinal sectional view showing a state in which a flexible pipe is inserted in the flexible pipe joint according to the embodiment of the present invention.
【図３】 本発明の一実施の形態を示すフレキシブル管
用継手で、フレキ管を接続した後の状態を示す縦断面図
である。FIG. 3 is a longitudinal sectional view showing a state after a flexible pipe is connected in the flexible pipe joint according to the embodiment of the present invention.
【図４】 リテーナの右側面図を示す図である。FIG. 4 is a right side view of the retainer.
【図５】 従来のフレキシブル管用継手の例を示す縦断
面図である。FIG. 5 is a longitudinal sectional view showing an example of a conventional flexible pipe joint.
【図６】 従来のフレキシブル管用継手の他の例を示す
縦断面図である。FIG. 6 is a longitudinal sectional view showing another example of a conventional flexible pipe joint.
１０…継手本体 １５…めねじ １６…環状凹部 １７…縮径孔部 １８…貫通孔 １９…奥壁 ２０…ナット ２３…おねじ ２４…係合溝 ３０…リテーナ ３１…係止部 ３２…ガイド体 ３３…前端部 ３４…カラー ４０…ガスケット ５０…Ｏリング ６０…水密パッキン ７…フレキ管 ８…樹脂被覆層 DESCRIPTION OF SYMBOLS 10 ... Joint main body 15 ... Female thread 16 ... Annular concave part 17 ... Reduced diameter hole 18 ... Through hole 19 ... Back wall 20 ... Nut 23 ... Male thread 24 ... Engagement groove 30 ... Retainer 31 ... Locking part 32 ... Guide body 33 Front end 34 Collar 40 Gasket 50 O-ring 60 Watertight packing 7 Flexible tube 8 Resin coating layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鹿又 信一 東京都杉並区上井草３−１−21−108 (72)発明者 穴水 孝 東京都新宿区納戸町21 市ヶ谷納戸町ハ イデンス404 (72)発明者 斉藤 譲雄 東京都大田区鵜の木１−11−11 (72)発明者 佐藤 文隆 東京都江戸川区西一之江３−27−15 (56)参考文献 実開 平３−125983（ＪＰ，Ｕ) 実開 平３−125979（ＪＰ，Ｕ) 実開 平３−125982（ＪＰ，Ｕ) 実開 平４−58697（ＪＰ，Ｕ) 実開 平３−100688（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shinichi Kamata 3-1-21-108, Kamiigusa, Suginami-ku, Tokyo (72) Inventor Takashi Anamizu 404 Ichigaya-Natomachi Hiddens 404, Nido-cho, Shinjuku-ku, Tokyo (72) Inventor Yuzuo Saito 1-11-11 Unoki, Ota-ku, Tokyo (72) Inventor Fumitaka Sato 3-27-15, Nishi-Ichinoe, Edogawa-ku, Tokyo (56) References Hikaru 3-125983 (JP, U) Opened 3-125979 (JP, U) Opened 3-125982 (JP, U) Opened 4-58697 (JP, U) Opened 3-100688 (JP, U)
Claims (2)
前端部はフレキシブル管の山径より小さく、拡径・縮径
してフレキシブル管の谷部に係合するリテーナと、前記 リテーナが係止される前部とフレキシブル管を挿通
できる内径と前部におねじを形成したナットと、前記 ナットのおねじに螺合するめねじを前部に有し、後
部には前記リテーナの前端部が嵌入する縮径孔部と奥壁
を形成した継手本体とからなり、 前記継手本体とナットは、フレキシブル管が挿入されそ
の先端１山が前記リテーナの前端部を乗り越えて奥壁に
当接したとき、前記リテーナの前端部が前記フレキシブ
ル管先端１山の次の谷部に係合する位置に予め螺着され
ていることを特徴とするフレキシブル管用継手。1. A plurality of splits in an axial direction,
The front end is smaller than the peak diameter of the flexible tube,
A nut formed with a retainer that engages the valley of the flexible tube, the front and external thread on the inner diameter and the front which can insert a flexible tube in which the retainer is locked in, screwing in the male thread of the nut A female thread having a female screw at a front portion, a rear portion formed of a joint body having a reduced diameter hole into which a front end portion of the retainer is fitted and a back wall is formed. The joint body and the nut have a flexible pipe inserted thereinto. when br /> tip 1 mountain is in contact with the inner wall over the front end portion of the retainer, the front end portion of the retainer is the Furekishibu
Is screwed in advance at a position where it engages with the next valley of the
A joint for flexible pipes, characterized in that:
ル管先端１山の次の谷部に係合する位置での前記継手本At the position where it engages with the next valley next to the top of the pipe
体とナットとの螺着状態を保持するために、継手本体とIn order to maintain the screwed state between the body and the nut,
ナットとの間にカラーを装着したことを特徴とする請求Claim that the collar was attached between the nut
項１記載のフレキシブル管用継手。Item 7. A flexible pipe joint according to Item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5270806A JP2726380B2 (en) | 1993-10-28 | 1993-10-28 | Flexible pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5270806A JP2726380B2 (en) | 1993-10-28 | 1993-10-28 | Flexible pipe fittings |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27980297A Division JP3380721B2 (en) | 1997-09-25 | 1997-09-25 | Flexible pipe fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07119877A JPH07119877A (en) | 1995-05-12 |
| JP2726380B2 true JP2726380B2 (en) | 1998-03-11 |
Family
ID=17491283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5270806A Expired - Lifetime JP2726380B2 (en) | 1993-10-28 | 1993-10-28 | Flexible pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2726380B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2929081B2 (en) * | 1996-05-30 | 1999-08-03 | 株式会社藤井合金製作所 | Gas tap |
| JP5864164B2 (en) * | 2011-08-30 | 2016-02-17 | 株式会社モリタホールディングス | Fire hose coupling fittings |
| JP2019203532A (en) * | 2018-05-22 | 2019-11-28 | 光陽産業株式会社 | Flexible pipe joint |
| JP7290931B2 (en) * | 2018-10-01 | 2023-06-14 | 因幡電機産業株式会社 | drain hose fitting |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2565469Y2 (en) * | 1990-09-28 | 1998-03-18 | 光陽産業 株式会社 | Flexible pipe fittings |
| JP3100688U (en) * | 2003-09-25 | 2004-05-27 | 佐藤金属興業株式会社 | Bowl-like container |
| JP3125979U (en) * | 2006-05-10 | 2006-10-12 | 一範 松元 | Left and right eyeglasses |
| JP3125982U (en) * | 2006-05-25 | 2006-10-12 | 正江 老川 | Eye mask with mask and mouth covering function |
| JP3125983U (en) * | 2006-05-30 | 2006-10-12 | 協同組合プロード | Assembled model generator |
-
1993
- 1993-10-28 JP JP5270806A patent/JP2726380B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07119877A (en) | 1995-05-12 |
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