JPS6383493A - Sealing mechanism of joint made of plastic - Google Patents
Sealing mechanism of joint made of plasticInfo
- Publication number
- JPS6383493A JPS6383493A JP15476786A JP15476786A JPS6383493A JP S6383493 A JPS6383493 A JP S6383493A JP 15476786 A JP15476786 A JP 15476786A JP 15476786 A JP15476786 A JP 15476786A JP S6383493 A JPS6383493 A JP S6383493A
- Authority
- JP
- Japan
- Prior art keywords
- hose
- joint body
- lid
- joint
- sealing
- 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
- 230000007246 mechanism Effects 0.000 title claims description 10
- 239000004033 plastic Substances 0.000 title claims description 6
- 229920003023 plastic Polymers 0.000 title claims description 6
- 238000007789 sealing Methods 0.000 title description 23
- 230000000694 effects Effects 0.000 description 7
- -1 polytetrafluoroethylene Polymers 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
Landscapes
- Joints With Pressure Members (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、例えば、薬液、ガスなどの容器の吐出口に
、ホースを接続する際などに使用されるプラスチック継
手のシール機構に関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a sealing mechanism for a plastic joint used, for example, when connecting a hose to a discharge port of a container for liquid medicine, gas, etc. .
（従来の技術）
この種のプラスチック製継手は、薬液、ガス等のシール
がとくに完全に行われることが要求される。(Prior Art) This type of plastic joint is required to be particularly perfectly sealed against chemicals, gases, and the like.
このため、従来、第７図のように、蓋６のテーパ部８の
先端部に空隙ＩＩを設け、ホース２１を嵌入した継手本
体ｌを、蓋をねじ込むことによって、継手本体の先端部
である変肉部４先端をホース２１へ食い込ませるように
構成されたものが実用されている。For this reason, conventionally, as shown in FIG. 7, a gap II is provided at the tip of the tapered part 8 of the lid 6, and the fitting body l into which the hose 21 is fitted is inserted into the tip of the fitting body by screwing the lid. A hose configured so that the tip of the fleshy part 4 bites into the hose 21 is in practical use.
又、第８図の継手のシール機構では、ホース２１の外周
面の円周上に予めカッターナイフで溝２２を設けておく
。蓋６の内側に取付けた円錐筒状のスリーブ１２を、蓋
を継手本体にねじ込むことによって、スリーブ先端を溝
２２に喰い込ませてシールする。この方式のもので、ス
リーブを蓋と一体に形成したものもある。Further, in the sealing mechanism of the joint shown in FIG. 8, a groove 22 is previously formed on the circumference of the outer peripheral surface of the hose 21 using a cutter knife. By screwing the conical sleeve 12 attached to the inside of the lid 6 into the joint body, the tip of the sleeve is bitten into the groove 22 and sealed. Some models of this type have the sleeve integrally formed with the lid.
さらに、第９図の継手のシール機構は、ホース２１先端
部にラッパ状のフレア２３を形成してシールするように
しである。Furthermore, the sealing mechanism of the joint shown in FIG. 9 is such that a trumpet-shaped flare 23 is formed at the tip of the hose 21 for sealing.
（発明が解決しようとする問題点）
しかしながら、第７図の継手のシール機構では、ホース
への加圧は、面圧及び変肉部４先端の１個所のみの局部
加圧であって、満足するよううなシール効果は得られな
い。(Problems to be Solved by the Invention) However, in the sealing mechanism of the joint shown in FIG. 7, the pressure applied to the hose is surface pressure and local pressure applied only to one point at the tip of the wall change portion 4, which is not satisfactory. It is not possible to obtain the same sealing effect that would occur.
第８図の継手のシール機構は、前記第３図の継手に比べ
てシール効果は大きいが、継手本体１、蓋８、スリーブ
１２の３部品を必要とするうえ、ホース２１にＲ２２を
つける手間がかかる。スリーブを蓋と一体に形成するの
は工作上の困難がある。The sealing mechanism of the joint shown in FIG. 8 has a greater sealing effect than the joint shown in FIG. It takes. There are manufacturing difficulties in forming the sleeve integrally with the lid.
又、第９図の場合もシール効果は大きいが、ホース先端
部に予めフレア２３を設ける手間がかかる欠点がある。The case shown in FIG. 9 also has a great sealing effect, but has the disadvantage that it takes time and effort to provide the flare 23 at the end of the hose in advance.
（問題点を解決するための手段）
この発明は、面圧シールにくわえて複数個所の局部シー
ルにより、高圧での使用を可能にするとともに、シール
の信頼性を高めることを目的とする。(Means for Solving the Problems) An object of the present invention is to enable use at high pressure and to improve the reliability of the seals by using local seals at a plurality of locations in addition to surface pressure seals.
即ち、ホースを嵌入する継手本体と継手本体に螺着する
蓋とからなり、蓋を継手本体へねじ込むことによって、
継手本体へ嵌入されたホースを締めっけてシール可能に
、継手本体、又は蓋のいずれか一方に設けたホースを締
めっける変肉部に複数段のリング状凸部を形成するとと
もに、他方に変肉部を抑圧可能なテーパ部を設けたもの
である。That is, it consists of a joint body into which the hose is inserted and a lid that is screwed onto the joint body, and by screwing the lid into the joint body,
In order to tighten and seal the hose inserted into the joint body, a multi-stage ring-shaped convex portion is formed on the thickened part provided on either the joint body or the lid to tighten the hose, and the other side A tapered part is provided to suppress the change in thickness.
（作用）
継手はプラスチック類であるため、継手本体へ嵌入した
ホースを、蓋をねじ込むことよって、継手本体、又は蓋
のいずれか一方に設けた変肉部は他方に設けたテーパ部
によってホース側へ押圧されるため、リング状凸部を除
いた部分で面シールされる。これに加えて複数のリング
状凸部がホースに喰い込むため、複数の局部シールが可
能となる。さらに、ホースにも凹凸が生じてシール効果
が増大する。(Function) Since the joint is made of plastic, by screwing the lid onto the hose that has been fitted into the joint body, the thickened part on either the joint body or the lid can be removed from the hose side by the tapered part on the other side. Since it is pressed against the ring, the surface is sealed in the area excluding the ring-shaped protrusion. In addition, since the plurality of ring-shaped protrusions bite into the hose, a plurality of local seals are possible. Furthermore, the hose also becomes uneven, increasing the sealing effect.
（実施例）
第１図ないし第２図により、耐薬品性、耐ガス性の継手
であって、継手本体側にリング状凸部を設けたシール機
構の実施例を説明する。(Example) An example of a sealing mechanism which is a chemical-resistant and gas-resistant joint and has a ring-shaped protrusion on the joint body side will be described with reference to FIGS. 1 and 2.
１は継手本体で、ポリ四フッカエチレンを材質とするが
、ポリ三フッカエチレンの外、ポリプロピレン、ポリエ
チレンなども使用することができる。Reference numeral 1 designates the joint body, which is made of polytetrafluoroethylene, but other materials such as polypropylene, polyethylene, etc. can also be used in addition to polytetrafluoroethylene.
２は、継手本体１の前部（Ｍ側、即ち図面では右側）に
設けられたＭ虹着用の雄ねじで、継手本体１の外周面に
設けられている。３はホース嵌入部である。Reference numeral 2 denotes an M-shaped male thread provided on the front part (M side, that is, the right side in the drawing) of the joint body 1, and is provided on the outer peripheral surface of the joint body 1. 3 is a hose insertion part.
４は継手本体１の先端部に設けられた変肉部で、内面に
はホース嵌入部３の前端から変肉部の先端へ向かって斜
上するテーパが設けられて、変形しやすいよう形成され
ている。この変肉部４の内周面には、円周方向のリング
状凸部５が３段に設けられている。実施例では、リング
状凸部５の横断面は半円状に形成されているが、この形
状に限られていのは勿論で、例えば半楕円状、長方形状
、鋸歯状など、使用目的により任意である。又、その数
も使用流体の圧力等によって２個、或いは４個以上にす
ることもできる。Reference numeral 4 denotes a thickened portion provided at the tip of the joint body 1, and the inner surface thereof is provided with a taper that slopes upward from the front end of the hose insertion portion 3 toward the tip of the thickened portion, so that it is easily deformed. ing. On the inner circumferential surface of the variable thickness portion 4, three ring-shaped convex portions 5 are provided in the circumferential direction. In the embodiment, the cross section of the ring-shaped convex portion 5 is formed in a semicircular shape, but it is of course not limited to this shape, and can be arbitrarily formed depending on the purpose of use, such as a semielliptical shape, a rectangular shape, a sawtooth shape, etc. It is. Moreover, the number can also be increased to two or four or more depending on the pressure of the fluid used.
６は継手本体１と同材質の蓋で、前部内周面には、前記
継手本体の雄ねじ２に螺合する雌ねじ７が設けられてい
る。８はテーパ部で、雌ねじ７の先端からＭ６の先端へ
向かって斜降して形成され、第２図のように、Ｍ６を継
手本体ｌへ螺着して締めつけることによって、継手本体
の変肉部４を、ホース２１に圧着する。このとき、変肉
部のリング状凸部５はホース２１へ喰い込む。Reference numeral 6 denotes a lid made of the same material as the joint body 1, and a female thread 7 is provided on the inner circumferential surface of the front portion to be screwed into the male thread 2 of the joint body. Reference numeral 8 denotes a tapered portion, which is formed by diagonally descending from the tip of the female thread 7 toward the tip of M6.As shown in Fig. 2, by screwing M6 onto the joint body l and tightening it, the change in thickness of the joint body can be avoided. The portion 4 is crimped onto the hose 21. At this time, the ring-shaped convex portion 5 of the changed thickness part bites into the hose 21.
（他の実施例）
第３図、第４図の実施例は、継手本体１にテーパ部８を
設け、蓋６に、複数段のリング状凸部５を有する変肉部
４を一体に設けたものである。前記実施例と同様、蓋８
をねじ込むことにより、ホース２１をシールすることが
可能になる。(Other Embodiments) In the embodiments shown in FIGS. 3 and 4, the joint body 1 is provided with a tapered portion 8, and the lid 6 is integrally provided with a variable thickness portion 4 having a plurality of ring-shaped convex portions 5. It is something that As in the previous embodiment, the lid 8
By screwing in, it becomes possible to seal the hose 21.
又、第４図、第５図の実施例では、蓋６に、複数段のリ
ング状凸部５を有する変肉部４をスリーブ状に設けたも
のである。In the embodiments shown in FIGS. 4 and 5, the lid 6 is provided with a sleeve-shaped variable thickness portion 4 having a plurality of ring-shaped protrusions 5.
（効果）
複数段のリング状凸部を設けたことにより、シール効果
が大きいので、高圧流体、有害流体に使用できるうえ、
ホースの抜は止め効果も増大する。(Effects) The provision of multiple ring-shaped protrusions provides a great sealing effect, so it can be used for high-pressure fluids and hazardous fluids, and
The effect of preventing the hose from being pulled out is also increased.
又、従来継手に必要であった、ホースの溝切り、フレア
形成などの作業を不要とするので、迅速な接続が可能で
ある。In addition, it eliminates the need for operations such as grooving and flaring of the hose, which were required for conventional joints, allowing quick connection.
さらに、スリーブなどを必要としないので、安価に提供
できる。Furthermore, since it does not require a sleeve or the like, it can be provided at low cost.
第１図はシール前の縦断面図、第２はシール後の状態の
拡大縦断面図である。
第３図ないし第６図は他の実施例を示し、第３図は蓋に
変肉部を一体に設けたもののシール前の縦断面図、第４
図はそのシール後の拡大縦断面図である。又、第５図は
蓋に変肉部をスリーブ状に設けたもののシール前の縦断
面図、第６図はそのシール後の拡大縦断面図である。
第７図ないし第９図は従来の継手シール機構の縦断面図
であって、いずれもａ図はシール前を、ｂ図はシール後
の状態を示す。第７図は局部シールが１個所のもの、第
８図はスリーブを取付けたもの、第９図はホース先端部
にフレアを形成したものである。
ｌ・・・・継手本体
３・・・・ホース嵌入部
４・・・・変肉部
５・・・・リング状凸部
６・・・・蓋
８・・・・テーパ部
２１・・・・ホース
代理人 弁理士 山 上 正 晴
第１図
第２図
第３図
第４図
第５図
第７図
（ａ） （ｂ）
第９図
手続補正書（方式）
％式％
１ 事件の表示
昭６１年特許願第１５４７６７号
２ 発明の名称
プラスチック製継手のシール機構
３ 補正をする者
事件との関係 特許出願人
４代理人
５ 補正命令の日付FIG. 1 is a longitudinal sectional view before sealing, and FIG. 2 is an enlarged longitudinal sectional view after sealing. 3 to 6 show other embodiments, in which FIG. 3 is a vertical cross-sectional view of a lid with a thickness change part integrated therein before sealing, and FIG.
The figure is an enlarged longitudinal sectional view after sealing. Further, FIG. 5 is a vertical cross-sectional view of a lid having a sleeve-shaped thickness change portion before sealing, and FIG. 6 is an enlarged vertical cross-sectional view after sealing. 7 to 9 are vertical sectional views of conventional joint sealing mechanisms, in which figure a shows the state before sealing and figure b shows the state after sealing. Fig. 7 shows a hose with one local seal, Fig. 8 shows a hose with a sleeve attached, and Fig. 9 shows a hose with a flared end. l...Coupling body 3...Hose insertion part 4...Change in thickness part 5...Ring-shaped convex part 6...Lid 8...Tapered part 21... Horse agent Patent attorney Masaharu Yamagami Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 7 (a) (b) Figure 9 Procedure amendment (method) % formula % 1 Display of the case 1961 Patent Application No. 154767 2 Name of the invention Sealing mechanism for plastic joints 3 Relationship with the case of the person making the amendment Patent applicant 4 Attorney 5 Date of amendment order
Claims (1)
る蓋とからなり、蓋を継手本体へねじ込むことによって
、継手本体へ嵌入されたホースを締めつけてシール可能
に、継手本体、又は蓋のいずれか一方に設けたホースを
締めつける変肉部に複数段のリング状凸部を形成すると
ともに、他方に変肉部を押圧可能なテーパ部を設けたこ
とを特徴とするプラスチック製継手のシール機構。(1) Consists of a joint body into which the hose is inserted and a lid which is screwed onto the joint body. By screwing the lid into the joint body, the hose fitted into the joint body can be tightened and sealed. A seal for a plastic joint, characterized in that a plurality of ring-shaped protrusions are formed on the thickened portion on one side of the hose that tightens the hose, and a tapered portion that can press the thickened portion is provided on the other side. mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15476786A JPS6383493A (en) | 1986-06-30 | 1986-06-30 | Sealing mechanism of joint made of plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15476786A JPS6383493A (en) | 1986-06-30 | 1986-06-30 | Sealing mechanism of joint made of plastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6383493A true JPS6383493A (en) | 1988-04-14 |
Family
ID=15591447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15476786A Pending JPS6383493A (en) | 1986-06-30 | 1986-06-30 | Sealing mechanism of joint made of plastic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6383493A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008006634A (en) * | 2006-06-28 | 2008-01-17 | Seiko Epson Corp | Liquid injection apparatus |
| JP2009254777A (en) * | 2007-07-19 | 2009-11-05 | National Cardiovascular Center | Connection unit and connection construction of artificial blood vessel or blood passage tube |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61105391A (en) * | 1984-10-17 | 1986-05-23 | 日本ピラ−工業株式会社 | Pipe joint made of resin |
-
1986
- 1986-06-30 JP JP15476786A patent/JPS6383493A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61105391A (en) * | 1984-10-17 | 1986-05-23 | 日本ピラ−工業株式会社 | Pipe joint made of resin |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008006634A (en) * | 2006-06-28 | 2008-01-17 | Seiko Epson Corp | Liquid injection apparatus |
| JP2009254777A (en) * | 2007-07-19 | 2009-11-05 | National Cardiovascular Center | Connection unit and connection construction of artificial blood vessel or blood passage tube |
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