JPH0110557Y2 - - Google Patents
Info
- Publication number
- JPH0110557Y2 JPH0110557Y2 JP1985104799U JP10479985U JPH0110557Y2 JP H0110557 Y2 JPH0110557 Y2 JP H0110557Y2 JP 1985104799 U JP1985104799 U JP 1985104799U JP 10479985 U JP10479985 U JP 10479985U JP H0110557 Y2 JPH0110557 Y2 JP H0110557Y2
- Authority
- JP
- Japan
- Prior art keywords
- coil spring
- valve body
- core material
- compression coil
- tube
- 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
Links
- 230000006835 compression Effects 0.000 claims description 22
- 238000007906 compression Methods 0.000 claims description 22
- 239000011347 resin Substances 0.000 claims description 21
- 229920005989 resin Polymers 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 19
- 239000011162 core material Substances 0.000 claims description 15
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 11
- 229910052731 fluorine Inorganic materials 0.000 claims description 11
- 239000011737 fluorine Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 239000004812 Fluorinated ethylene propylene Substances 0.000 claims description 3
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 3
- 229920009441 perflouroethylene propylene Polymers 0.000 claims description 3
- 229920006172 Tetrafluoroethylene propylene Polymers 0.000 claims 1
- 239000000126 substance Substances 0.000 description 10
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 239000004809 Teflon Substances 0.000 description 5
- 229920006362 Teflon® Polymers 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical group FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- MSKQYWJTFPOQAV-UHFFFAOYSA-N fluoroethene;prop-1-ene Chemical group CC=C.FC=C MSKQYWJTFPOQAV-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
本考案は、例えば、化学薬品の送給管に使用す
るワンタツチで接続可能な管継手に関する。[Detailed description of the invention] (a) Field of industrial application The present invention relates to a pipe joint that can be connected with one touch and is used, for example, in a chemical supply pipe.
(ロ) 従来の技術
従来、化学薬品の送給管に使用する管継手は、
耐薬品性に優れるふつ素樹脂（テフロン−登録商
標名）がその材料として使用されている。またボ
ールロツク方式等の施錠機構をもついわゆるワン
タツチ式の管継手では、管継手の雄、雌部材の弁
体あるいは施錠機構のボールを操作する操作スリ
ーブを付勢するためにステンレス材からなる圧縮
コイルスプリングを使用している。なお、このス
プリングは、耐薬品性を高めるために、その外表
面にふつ素樹脂をコーテイングする場合もある。(b) Conventional technology Conventionally, pipe fittings used for chemical supply pipes are
Fluorine resin (Teflon - registered trademark), which has excellent chemical resistance, is used as the material. In addition, in so-called one-touch type pipe fittings that have a locking mechanism such as a ball lock type, a compression coil spring made of stainless steel is used to bias the operating sleeve that operates the valve body of the male and female members of the pipe fitting or the ball of the locking mechanism. are using. Note that the outer surface of this spring may be coated with fluororesin in order to improve its chemical resistance.
(ハ) 考案が解決しようとする問題点
しかし上記従来の管継手では、ステンレス材か
らなる圧縮コイルスプリングが流体の化学薬品で
侵されるという欠点があり、またステンレスのス
プリングの外表面にふつ素樹脂をコーテイングし
た場合も、コーテイング部分にピンホールが形成
され易く、十分にステンレス材を保護できないと
いう問題がある。(c) Problems to be solved by the invention However, the conventional pipe fittings described above have the disadvantage that the compression coil spring made of stainless steel is attacked by chemicals in the fluid, and the outer surface of the stainless steel spring is coated with fluorine resin. Even when coated with stainless steel, pinholes are likely to be formed in the coated area, and there is a problem that the stainless steel material cannot be sufficiently protected.
本考案は上記従来の問題点を解決するものであ
り、上記の圧縮コイルスプリングを耐薬品性に優
れたものとして耐用命数を長くすることができる
管継手を提供することを目的とする。 The present invention solves the above-mentioned conventional problems, and aims to provide a pipe joint that can extend the service life by making the above-mentioned compression coil spring excellent in chemical resistance.
(ニ) 問題点を解決するための手段
本考案の管継手は、上記の問題点を解決するた
め、少くとも雌部材は自由状態で流体路を閉塞す
る弁体を有し、ボールによる施錠機構を有するふ
つ素樹脂からなる雄部材と雌部材の組合せによる
管継手にあつて、上記雄部材あるいは雌部材の弁
体をその弁座に対して付勢する圧縮コイルスプリ
ングと、上記施錠機構のボールを操作スリーブに
付設される圧縮コイルスプリングとを、ステンレ
ス材からなるコイルスプリングの芯材の外側にふ
つ素樹脂材のチユーブを熱収縮させて被着して構
成するものである。(d) Means for solving the problems In order to solve the above problems, the pipe joint of the present invention has at least a valve body that closes the fluid path in a free state in the female member, and a locking mechanism using a ball. A compression coil spring that biases the valve body of the male member or the female member against the valve seat, and a ball of the locking mechanism. The compression coil spring attached to the operating sleeve is constructed by heat-shrinking a tube made of a fluorine resin material and adhering it to the outside of the core material of the coil spring made of stainless steel.
(ホ) 作用
上記のように構成した管継手では、その圧縮コ
イルスプリングの芯材となるステンレス材の外表
面がふつ素樹脂材の被覆チユーブで覆われるた
め、コイルスプリング（芯材）が化学薬品等の流
体で侵されるのを防止できる。また、圧縮コイル
スプリングは、ステンレスの芯材の外側にふつ素
樹脂の被覆チユーブを配設するので、その弾性係
数を比較的大きくできる。(e) Effect In the pipe joint configured as above, the outer surface of the stainless steel material that is the core material of the compression coil spring is covered with a fluorine resin coating tube, so the coil spring (core material) is exposed to chemicals. It can prevent corrosion by fluids such as Furthermore, since the compression coil spring has a fluororesin-covered tube provided on the outside of the stainless steel core material, its elastic modulus can be made relatively large.
(ヘ) 実施例
以下、本考案の実施例を図面について説明す
る。(F) Embodiments Examples of the present invention will be described below with reference to the drawings.
第１図及び第２図は、ボールロツク式で、雌雄
両部材とも弁体を有する管継手であり、第１図は
自由状態第２図は結合状態を示す。 1 and 2 show a ball-lock type pipe joint in which both the male and female members have valve bodies, and FIG. 1 shows the free state and FIG. 2 shows the coupled state.
管継手は、雄部材１と雌部材１５とからなるも
のであり、以下の説明において、雄部材１と雌部
材１５とが相互に接続される側を「前方」あるい
は「前端」などと称し、その反対側を「後方」あ
るいは「後端」などと呼ぶ。 The pipe joint consists of a male member 1 and a female member 15, and in the following description, the side where the male member 1 and the female member 15 are connected to each other will be referred to as the "front" or "front end". The opposite side is called the "posterior" or "rear end."
雄部材１は、前端に雌部材１５に挿入する挿入
軸筒２が設けられ、この挿入軸筒２の外周には後
述の施錠ボールと係合する周溝３が形成されてい
る。また雄部材１の内部には軸方向に流体路４が
形成されており、この流体路４の前端、すなわち
挿入軸筒２の前端面には開口５が形成されてい
る。この流体路４の後端にはホース金具などが接
続される雌ネジ部６が形成され、その前方にはコ
イルバネ係止リング７が固定して設けられ、その
前方には挿入軸筒２の内側を摺動可能にして弁体
８が配設されている。この弁体８は、コイルバネ
係止リング７との間で両端を係止した圧縮コイル
スプリング９により常時前方へ移動するよう付勢
されており、第１図の自由状態では、弁体８が開
口５の後方内側の弁座１０に当接して開口５部分
が閉止されており、かつ弁体８の弁頭１１は開口
５より前方へ突出した状態にある。１２，１２は
流体路４に臨んで弁体８に設けた流通孔であり、
１３は弁体８の弁座１０との当接部分に設けるＯ
リングである。 The male member 1 is provided with an insertion barrel 2 at its front end to be inserted into the female member 15, and a circumferential groove 3 is formed on the outer periphery of the insertion barrel 2 to engage with a locking ball to be described later. A fluid passage 4 is formed in the axial direction inside the male member 1, and an opening 5 is formed at the front end of the fluid passage 4, that is, at the front end surface of the insertion shaft tube 2. A female threaded portion 6 to which a hose fitting or the like is connected is formed at the rear end of this fluid path 4, and a coil spring locking ring 7 is fixedly provided in front of the female threaded portion 6, and the inner side of the insertion shaft cylinder 2 is provided in front of the female screw portion 6. A valve body 8 is disposed so as to be slidable. This valve body 8 is always urged to move forward by a compression coil spring 9 which is locked at both ends with a coil spring retaining ring 7. In the free state in FIG. 1, the valve body 8 is open. The opening 5 portion is closed by contacting the rear inner valve seat 10 of the valve body 8, and the valve head 11 of the valve body 8 is in a state of protruding forward from the opening 5. 12, 12 are communication holes provided in the valve body 8 facing the fluid path 4;
Reference numeral 13 denotes an O provided at the part of the valve body 8 that comes into contact with the valve seat 10.
It's a ring.
上記雄部材１の構成各部は、耐薬品性に優れる
四ふつ化エチレン樹脂（テフロン−登録商標名、
PTFE）などのふつ素樹脂からなるものであり、
また、Ｏリング１３にはふつ素ゴム材を使用す
る。 Each of the constituent parts of the male member 1 is made of tetrafluoroethylene resin (Teflon - registered trademark name), which has excellent chemical resistance.
It is made of fluorine resin such as PTFE).
Moreover, a fluorine rubber material is used for the O-ring 13.
なお、圧縮コイルスプリング９の構造は、後述
する通りである。 The structure of the compression coil spring 9 will be described later.
次に、雌部材１５は、その前端に嵌合筒１６が
設けられ、その内側には軸方向に雄部材１の挿入
軸２が挿嵌される挿嵌口１７が形成され、本体内
部の中間から後端にかけて軸方向に流体路１８が
形成され、この流体路１８の前方と挿嵌口１７の
後方との間に両者を連通して開口１９が形成され
ている。嵌合筒１６の円周上には複数個の貫通孔
２０があけられており、この貫通孔２０内には脱
落不可にして施錠ボール２１が遊嵌されており、
このボール２１は雌部材１５の中心軸に対して放
射状方向に、貫通孔２０内を若干移動可能にされ
ている。嵌合筒１６の外周には圧縮コイルスプリ
ング２５によつて常時前方へ付勢され摺動可能に
して操作スリーブ２２が設けられており、その突
出押圧部２３で貫通孔２０内の施錠ボール２１を
内側に常時押圧している。これら施錠ボール２
１、操作スリーブ２２およびコイルスプリング２
５などは雄部材１の周溝３と組合せて施錠機構を
構成するものであり、雌雄両部材の結合時に、操
作スリーブ２２をコイルスプリング２５の反発に
抗して後方へ移動させその逃げ凹部２４に施錠ボ
ール２１を一旦逃がした後に操作スリーブ２２を
元位置に戻せば施錠ボール２１が雄部材１の周溝
３に係合して施錠がなされる。また解錠時も操作
スリーブ２２を同様に操作して行う。２６は嵌合
筒１６の前端外周部に配設した操作スリーブ２２
の脱落防止用の係止リングである。雌部材１５の
流体路１８の後端にはホース金具などが接続され
る雌ネジ部２７が形成され、その前方にはコイル
バネ係止リング２８が固定して設けられ、その前
方には流体路１８内壁を摺動可能にして弁体２９
が配設されている。この弁体２９は、コイルバネ
係止リング２８との間で両端を係止した圧縮コイ
ルスプリング３０により常時前方へ移動するよう
付勢されており、第１図の自由状態では、弁体２
９が開口１９の後方内側の弁座３６に当接して開
口１９部分が閉止されており、かつ弁体２９の弁
頭３１は開口部１９より前方へ突出した状態にあ
る。 Next, the female member 15 is provided with a fitting cylinder 16 at its front end, and an insertion opening 17 into which the insertion shaft 2 of the male member 1 is inserted in the axial direction is formed inside the fitting cylinder 16, and an insertion opening 17 is formed in the middle of the inside of the main body. A fluid passage 18 is formed in the axial direction from the rear end to the rear end, and an opening 19 is formed between the front of the fluid passage 18 and the rear of the insertion opening 17 so as to communicate the two. A plurality of through holes 20 are bored on the circumference of the fitting cylinder 16, and a locking ball 21 is loosely fitted into the through holes 20 so as not to fall off.
This ball 21 is allowed to move slightly within the through hole 20 in a radial direction relative to the central axis of the female member 15. An operation sleeve 22 is provided on the outer periphery of the fitting cylinder 16 so as to be constantly biased forward by a compression coil spring 25 so as to be able to slide. It is constantly pressed inward. These locking balls 2
1. Operation sleeve 22 and coil spring 2
5 and the like constitute a locking mechanism in combination with the circumferential groove 3 of the male member 1, and when the male and female members are coupled, the operation sleeve 22 is moved rearward against the repulsion of the coil spring 25, and the relief recess 24 is moved. When the operating sleeve 22 is returned to its original position after the locking ball 21 is once released, the locking ball 21 engages with the circumferential groove 3 of the male member 1 and locking is achieved. Also, when unlocking, the operation sleeve 22 is operated in the same manner. Reference numeral 26 denotes an operating sleeve 22 disposed on the outer periphery of the front end of the fitting cylinder 16.
This is a locking ring to prevent it from falling off. A female threaded portion 27 to which a hose fitting or the like is connected is formed at the rear end of the fluid path 18 of the female member 15, a coil spring locking ring 28 is fixedly provided in front of the female threaded portion 27, and the fluid path 18 is fixedly provided in front of the female thread portion 27. The valve body 29 is made slidable on the inner wall.
is installed. The valve body 29 is always urged to move forward by a compression coil spring 30 which is locked at both ends with the coil spring retaining ring 28, and in the free state in FIG.
9 abuts against the valve seat 36 on the rear inner side of the opening 19 to close the opening 19, and the valve head 31 of the valve body 29 projects forward from the opening 19.
３２，３２は流体路１８に臨んで弁体２９に設
けた流通孔であり、３３，３４はＯリングであ
る。 32, 32 are communication holes provided in the valve body 29 facing the fluid path 18, and 33, 34 are O-rings.
上記雌部材１５の構成各部も、耐薬品性に優れ
る四ふつ化エチレン樹脂（テフロン−登録商標
名、PTFE）などのふつ素樹脂からなるものであ
り、またＯリング３３，３４にはふつ素ゴム材を
使用する。 Each component of the female member 15 is also made of fluorine resin such as tetrafluoroethylene resin (Teflon - registered trademark name, PTFE), which has excellent chemical resistance, and the O-rings 33 and 34 are made of fluorine rubber. Use materials.
なお、圧縮コイルスプリング３０，２５および
係止リング２６の構造は後述の通りである。 Note that the structures of the compression coil springs 30, 25 and the locking ring 26 are as described below.
第２図は雌雄両部材の結合状態を示すものであ
り、ボールロツクの施錠機構が働き、両部材の弁
体７，２９の弁頭１１，３１同士が押圧し合い両
者の開口５，１９が開いて流体路４，１８が連通
した状態を示す。 Figure 2 shows the state in which the male and female members are connected, and the locking mechanism of the ball lock works, and the valve heads 11, 31 of the valve bodies 7, 29 of both members press against each other, opening the openings 5, 19 of both members. This shows a state in which the fluid passages 4 and 18 are in communication.
次に上記圧縮コイルスプリング９，３０，２５
などの構造について説明する。第３図および第４
図に図示するように、これらコイルスプリング
は、ステンレス材からなる芯材４０でコイルスプ
リングを形成し、その外側にふつ素樹脂材からな
る被覆チユーブ４１を熱収縮によつて被着するも
のである。被覆チユーブ４１は、例えば、内層の
芯材に対して熱溶着性のよいふつ化エチレンプロ
ピレン樹脂（FEP）４２と、外層の熱収縮性の
よい四ふつ化エチレン樹脂（PTFE）４３とを積
層した構造からなるものであり、芯材４０の端部
から順次に被覆チユーブ４１を被せて芯材４０の
全体に被せた後に、これを高温で加熱し、第１層
を熱溶着するとともに第２層を熱収縮させ、かつ
第４図のように端部を閉塞して、芯材４０と被覆
チユーブ４１を一体に形成するものである。 Next, the compression coil springs 9, 30, 25
We will explain the structure of Figures 3 and 4
As shown in the figure, these coil springs are formed by a core material 40 made of stainless steel material, and a covering tube 41 made of a fluorine resin material is attached to the outside by heat shrinkage. . The covering tube 41 is made by laminating, for example, a fluorinated ethylene propylene resin (FEP) 42 with good heat weldability to the core material of the inner layer, and a polyfluorinated ethylene propylene resin (PTFE) 43 with good heat shrinkability of the outer layer. After covering the entire core material 40 with covering tubes 41 sequentially starting from the ends of the core material 40, this is heated at a high temperature to thermally weld the first layer and to form the second layer. The core material 40 and the covering tube 41 are integrally formed by heat-shrinking the tube and closing the ends as shown in FIG.
本考案では、圧縮コイルスプリングのうち、少
くとも流体路内に設けられるコイルスプリング
９，３０を上記構造のものとする。また施錠機構
を構成するコイルスプリング２５あるいは係止リ
ング２６をこれに加えることができる。 In the present invention, among the compression coil springs, at least the coil springs 9 and 30 provided in the fluid path have the above structure. Further, a coil spring 25 or a locking ring 26 constituting a locking mechanism can be added to this.
なお、ふつ素樹脂材の被覆チユーブ４１は、二
重構造に限らず、ふつ化エチレンプロピレン樹脂
あるいは四ふつ化エチレン樹脂（テフロン−登録
商標名）などのふつ化エチレン樹脂（テフロン−
登録商標名）などのふつ素樹脂材をそれぞれ単独
で構成することもできる。 The tube 41 made of fluorocarbon resin is not limited to a double structure, and may be made of fluoroethylene resin (Teflon) such as fluoroethylene propylene resin or tetrafluoroethylene resin (Teflon - registered trademark).
It is also possible to use a single fluorocarbon resin material such as (registered trademark name).
なおまた、圧縮コイルスプリング９，３０を被
覆チユーブ４１を被着したもので構成すること
で、その弾材係数を被覆チユーブなしの場合に比
べて大きくすることができる。このことは、弁体
の弁座への閉止接触圧が大きくとれることを意味
し、したがつて、第５図および第６図のように弁
体７，２９の弁座１０，３６への接触部の形成を
弁座１０，３６に密着するようにすれば、第１図
および第２図図示のＯリング１３，３３を不要に
することもできる。 Furthermore, by configuring the compression coil springs 9 and 30 with the covered tube 41, the elastic modulus thereof can be made larger than that without the covered tube. This means that the closing contact pressure of the valve body to the valve seat can be increased, and therefore, as shown in FIGS. The O-rings 13, 33 shown in FIGS. 1 and 2 can be made unnecessary by forming the portions in close contact with the valve seats 10, 36.
次に第５図及び第６図に示す管継手は、雄部材
１′が弁体を有しないものであり、雌部材１５は
上記の実施例のものと全く同様である。すなわ
ち、雄部材１′は、前端に雌部材１５への挿入軸
筒２′が設けられ、この挿入軸筒２′の外周には施
錠ボールと係合する周溝３′が形成され、また雄
部材１′の内部には軸方向に流体路４′が形成さ
れ、この流体路４′の前端に開口５′および突当部
１１′が形成されるものである。 Next, in the pipe joint shown in FIGS. 5 and 6, the male member 1' does not have a valve body, and the female member 15 is exactly the same as that of the above embodiment. That is, the male member 1' is provided with a barrel 2' for insertion into the female member 15 at the front end, and a circumferential groove 3' that engages with a locking ball is formed on the outer periphery of this barrel 2'. A fluid passage 4' is formed in the axial direction inside the member 1', and an opening 5' and an abutment 11' are formed at the front end of this fluid passage 4'.
しかして、雌雄両部材を第６図のように結合す
ると、雄部材１′の突出部１１′が雌部材１５の弁
頭３１に突き当てて雌部材１５の弁体２９を開か
しめるものである。 When the male and female members are combined as shown in FIG. 6, the protrusion 11' of the male member 1' abuts against the valve head 31 of the female member 15, opening the valve body 29 of the female member 15. .
(ト) 考案の効果
以上述べたように本考案の管継手は、弁体を付
勢する圧縮コイルスプリングあるいは施錠機構に
付設される圧縮コイルスプリングを、芯材となる
ステンレス材の外側にふつ素樹脂材の被覆チユー
ブを被着したことにより、芯材が化学薬品等の流
体で侵されるのを防止し、耐用命数を大きくでき
る。また圧縮コイルスプリングの弾性を大きくで
き、弁体の弁座接触部に配設するシール用のＯリ
ングを省略することも可能である等の実用的効果
を発揮する。(g) Effects of the invention As described above, the pipe joint of the invention uses a compression coil spring that biases the valve body or a compression coil spring that is attached to the locking mechanism with a double layer on the outside of the stainless steel core material. By covering the resin coating tube, the core material is prevented from being attacked by fluids such as chemicals, and the service life can be increased. Further, the elasticity of the compression coil spring can be increased, and a sealing O-ring disposed at the valve seat contact portion of the valve body can be omitted, which provides practical effects.
図面は本考案の実施例に係るものであり、第１
図は管継手の雌雄両部材の自由状態の断面図、第
２図は同じく結合状態の断面図、第３図は圧縮コ
イルスプリングの部分拡大断面図、第４図は同じ
く端部の部分拡大断面図、第５図は他例の管継手
の雌雄両部材の自由状態の断面図、第６図は同じ
く結合状態の断面図である。
１，１′：雄部材、１５：雌部材、７，２９：
弁体、９，３０：圧縮コイルスプリング、４，１
８：流体路、４０：芯材、４１：被覆チユーブ。
The drawings relate to embodiments of the present invention, and the drawings are of the first embodiment.
The figure is a sectional view of the male and female members of the pipe joint in their free state, FIG. 2 is a sectional view of the same in the connected state, FIG. 3 is a partially enlarged sectional view of the compression coil spring, and FIG. 4 is a partially enlarged sectional view of the end. FIG. 5 is a sectional view of the male and female members of another example of the pipe joint in a free state, and FIG. 6 is a sectional view of the same in a connected state. 1, 1': Male member, 15: Female member, 7, 29:
Valve body, 9, 30: Compression coil spring, 4, 1
8: fluid path, 40: core material, 41: covering tube.
Claims (1)
る弁体を有し、ボールによる施錠機構を有する
ふつ素樹脂からなる雄部材と雌部材の組合せに
よる管継手において、上記雄部材あるいは雌部
材の弁体をその弁座に対して付勢する圧縮コイ
ルスプリングと、上記施錠機構のボールを操作
する操作スリーブに付設される圧縮コイルスプ
リングとを、ステンレス材からなるコイルスプ
リングの芯材の外側にふつ素樹脂材のチユーブ
を熱収縮させて被着したことを特徴とする管継
手。 (2) 上記コイルスプリングに被着するチユーブ
は、芯材に熱溶着性のよいふつ化エチレンプロ
ピレン樹脂を内側に配設し、熱収縮性のよい四
ふつ化エチレン樹脂を外側に配設した二重構造
である実用新案登録請求の範囲第１項記載の管
継手。 (3) 上記チユーブの両端は、芯材を閉塞するよう
にしたものである実用新案登録請求の範囲第１
項又は第２項のいずれかに記載の管継手。[Scope of Claim for Utility Model Registration] (1) A pipe made of a combination of a male member made of fluorine resin and a female member, the female member of which has a valve body that closes the fluid path in a free state, and which has a locking mechanism using a ball. In the joint, a compression coil spring that urges the valve body of the male or female member against its valve seat and a compression coil spring attached to the operation sleeve that operates the ball of the locking mechanism are made of stainless steel. A pipe joint characterized by a tube made of a fluorine resin material that is heat-shrinked and adhered to the outside of a core material of a coil spring. (2) The tube attached to the coil spring has a core material made of fluorinated ethylene propylene resin with good heat weldability on the inside and tetrafluoroethylene propylene resin with good heat shrinkability on the outside. The pipe joint according to claim 1 of the utility model registration claim, which is a heavy structure. (3) Both ends of the tube are such that the core material is closed.Claim 1 of the utility model registration claim
2. Pipe fitting according to any one of paragraphs 1 and 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985104799U JPH0110557Y2 (en) | 1985-07-11 | 1985-07-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985104799U JPH0110557Y2 (en) | 1985-07-11 | 1985-07-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6213289U JPS6213289U (en) | 1987-01-27 |
| JPH0110557Y2 true JPH0110557Y2 (en) | 1989-03-27 |
Family
ID=30978627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985104799U Expired JPH0110557Y2 (en) | 1985-07-11 | 1985-07-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0110557Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014169719A (en) * | 2013-03-01 | 2014-09-18 | Bridgestone Corp | Pipe joint |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8002853B2 (en) * | 2003-07-29 | 2011-08-23 | Societe Bic | Hydrogen-generating fuel cell cartridges |
| JP4764045B2 (en) * | 2005-03-29 | 2011-08-31 | 株式会社東芝 | coupler |
| JP2008133953A (en) * | 2007-10-29 | 2008-06-12 | Sony Corp | Connector mechanism |
| JP5267331B2 (en) * | 2009-05-28 | 2013-08-21 | トヨタ自動車株式会社 | Gas system |
| JP5669429B2 (en) * | 2010-04-28 | 2015-02-12 | 長堀工業株式会社 | Fluid coupling |
| US9004093B2 (en) * | 2012-05-22 | 2015-04-14 | B/E Aerospace, Inc. | Compact check valve for aircraft galley plumbing system |
| KR101313010B1 (en) * | 2013-04-03 | 2013-09-30 | (주)희송지오텍 | Backflow preventing valve type grouting device for installing borehole seismometer and borehole grouting installation method of seismometer using thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60121388A (en) * | 1983-11-14 | 1985-06-28 | ダイキン工業株式会社 | Corrosion-resistant simply detachable piping joint |
| JPS6029936B2 (en) * | 1979-12-27 | 1985-07-13 | 富士通株式会社 | Pattern formation method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029936U (en) * | 1983-08-05 | 1985-02-28 | 中央発條株式会社 | Coil spring with buffer tube |
| JPS6069840U (en) * | 1983-10-19 | 1985-05-17 | 株式会社日本気化器製作所 | spring |
-
1985
- 1985-07-11 JP JP1985104799U patent/JPH0110557Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029936B2 (en) * | 1979-12-27 | 1985-07-13 | 富士通株式会社 | Pattern formation method |
| JPS60121388A (en) * | 1983-11-14 | 1985-06-28 | ダイキン工業株式会社 | Corrosion-resistant simply detachable piping joint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014169719A (en) * | 2013-03-01 | 2014-09-18 | Bridgestone Corp | Pipe joint |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6213289U (en) | 1987-01-27 |
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