JP2006283956A - Quick connector - Google Patents

Quick connector Download PDF

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Publication number
JP2006283956A
JP2006283956A JP2005108798A JP2005108798A JP2006283956A JP 2006283956 A JP2006283956 A JP 2006283956A JP 2005108798 A JP2005108798 A JP 2005108798A JP 2005108798 A JP2005108798 A JP 2005108798A JP 2006283956 A JP2006283956 A JP 2006283956A
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Prior art keywords
quick connector
housing
resin
connector according
fuel
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JP2005108798A
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JP4712423B2 (en
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Hiroyuki Okada
田 宏 幸 岡
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Sanoh Industrial Co Ltd
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Sanoh Industrial Co Ltd
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Priority to JP2005108798A priority Critical patent/JP4712423B2/en
Priority to PCT/JP2006/307206 priority patent/WO2006107073A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/01—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means specially adapted for realising electrical conduction between the two pipe ends of the joint or between parts thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/098—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks
    • F16L37/0985—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks the flexible hook extending radially inwardly from an outer part and engaging a bead, recess or the like on an inner part
    • F16L37/0987—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks the flexible hook extending radially inwardly from an outer part and engaging a bead, recess or the like on an inner part the flexible hook being progressively compressed by axial tensile loads acting on the coupling

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a quick connector having electrical conductive specifications and capable of preventing increase of electric resistance due to direct contact with fuel and ensuring electrical conductive property required for letting static electricity escape. <P>SOLUTION: A housing 12 is molded by a resin material having electrical conductive property, and a protection part 30 for shutting off direct contact of fuel with electrical conductive resin of a material of the housing 12 partially is formed on an inside diameter face of the housing 12. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、自動車の燃料供給配管でチューブ同士の接続に用いるクイックコネクタに係り、特に、コネクタ本体のハウジングが導電性樹脂仕様のクイックコネクタに関する。   The present invention relates to a quick connector used for connecting tubes in a fuel supply pipe of an automobile, and more particularly to a quick connector in which a housing of a connector body has a conductive resin specification.

自動車の燃料配管では、チューブを接続する管継手としてクイックコネクタが広く用いられている。
図２は、代表的なクイックコネクタの従来例を示す。参照番号１は、樹脂チューブを示す。クイックコネクタを樹脂チューブ１に圧入することにより取り付けられるように、ハウジング４の末端部は、周方向に延びる複数の突起が形成された、いわゆるタケノコ形状の圧入接続部３になっている。参照番号２は、接続する相手方の金属製のパイプであり、この相手方のパイプ２の末端部には、外周部を周回するスプール部２ａが端末加工により形成されている。 In automobile fuel piping, quick connectors are widely used as pipe joints for connecting tubes.
FIG. 2 shows a conventional example of a typical quick connector. Reference numeral 1 indicates a resin tube. The end portion of the housing 4 is a so-called bamboo shoot-shaped press-fit connection portion 3 in which a plurality of protrusions extending in the circumferential direction are formed so that the quick connector can be attached by press-fitting into the resin tube 1. Reference numeral 2 denotes a mating metal pipe to be connected, and a spool portion 2 a that circulates around the outer peripheral portion is formed at the end of the mating pipe 2 by terminal processing.

参照番号５は、相手方のパイプ２をハウジング４と結合するスライド式のリテーナであり、このリテーナ５をハウジング４の側面に開口する窓から押し込むことで、リテーナ５のリブ６の端縁部６ａにスプール部２ａが係合し、相手方のパイプ２を抜けないように拘束することができる。このようにクイックコネクタでは、ボルト等の締結要素を用いることなく、ワンタッチで簡単にパイプ５とチューブ１同士を接続することができる。   Reference numeral 5 denotes a slide type retainer for coupling the opposite pipe 2 to the housing 4, and the retainer 5 is pushed into the end edge 6 a of the rib 6 of the retainer 5 by pushing the retainer 5 through a window opened on the side surface of the housing 4. The spool portion 2a is engaged and can be restrained so as not to come off the counterpart pipe 2. Thus, in the quick connector, the pipe 5 and the tube 1 can be easily connected with one touch without using a fastening element such as a bolt.

近年、自動車の燃料系配管に用いるチューブとしては、金属製のチューブに替わって樹脂チューブが用いられるようになってきている。樹脂チューブは、金属チューブと違って錆びることがなく、また、加工が容易な上に、設計上の自由度が大きく、軽量であるなどの数々の利点がある。   In recent years, resin tubes have been used instead of metal tubes as tubes used in automobile fuel piping. Unlike metal tubes, resin tubes do not rust, are easy to process, have a large degree of design freedom, and are lightweight.

自動車の燃料系配管では、燃料タンクの燃料をポンプで吐出するとき、また、燃料チューブの流路抵抗による摩擦によって静電気が発生し、燃料チューブが帯電するという現象がある。帯電した状態を放置すると、スパークが発生し燃料チューブの被膜が損傷し、その耐食性、耐摩耗性が劣化するという不都合が生じる。そのため、燃料系配管の途中で車体側にアースするなどして静電気を逃がす必要がある。この点、樹脂は、本来的に電気を通さないので、静電気がたまり易いということが問題となる。そこで、最近では、カーボンブラックやカーボン繊維などの導電フィラーを混入して導電性を付加した樹脂が開発されている。そして、クイックコネクタについても、ハウジング４を導電性の樹脂を材質とした導電仕様のものが開発されるに至っている。   In the fuel system piping of an automobile, there is a phenomenon that when the fuel in the fuel tank is discharged by a pump, static electricity is generated due to friction caused by the flow path resistance of the fuel tube, and the fuel tube is charged. If the charged state is left as it is, sparks are generated, the coating of the fuel tube is damaged, and the corrosion resistance and wear resistance are deteriorated. Therefore, it is necessary to discharge static electricity by grounding the vehicle body side in the middle of the fuel system piping. In this respect, since resin does not inherently conduct electricity, there is a problem that static electricity tends to accumulate. Therefore, recently, a resin having conductivity added by mixing a conductive filler such as carbon black or carbon fiber has been developed. As for the quick connector, the housing 4 having a conductive specification made of a conductive resin has been developed.

しかしながら、自動車の燃料配管にクイックコネクタを用いて導電性を確保しようとすると、今度は、燃料に直接ふれる部分の電気抵抗が経年的に大きくなるという点が新たな問題になる。   However, if it is attempted to secure conductivity by using a quick connector in a fuel pipe of an automobile, a new problem is that the electrical resistance of the portion that directly contacts the fuel increases with time.

例えば、図２に示した、クイックコネクタの場合であれば、タケノコ形の圧入接続部３の内部は燃料の流れる通路になっており、この部分の内壁面３ａは、常に燃料が直接触れていることになるので、圧入接続部３の部分の電気抵抗が大きくなり易い。クイックコネクタからアースをとるため、電気抵抗の増大により静電気が逃げにくくなる。   For example, in the case of the quick connector shown in FIG. 2, the inside of the bamboo-push press-fit connection portion 3 is a passage through which fuel flows, and the inner wall surface 3 a of this portion is always in direct contact with the fuel. As a result, the electrical resistance of the press-fit connection portion 3 tends to increase. Since the quick connector is grounded, static electricity is less likely to escape due to increased electrical resistance.

そこで、本発明の目的は、前記従来技術の有する問題点を解消し、導電仕様のクイックコネクタにおける燃料と直接接触する面に燃料に対する耐性の高い保護部を設け、この保護部によって直接接触を遮断することにより、電気抵抗の増大を防止し静電気を逃がすために必要な導電性を確保できるようにしたクイックコネクタを提供することにある。   Accordingly, an object of the present invention is to eliminate the problems of the prior art, and to provide a protective portion with high resistance to fuel on the surface of the quick connector of the conductive specification that is in direct contact with the fuel, and the direct contact is cut off by this protective portion. Accordingly, it is an object of the present invention to provide a quick connector that can ensure electrical conductivity necessary for preventing an increase in electric resistance and releasing static electricity.

前記の目的を達成するために、請求項１に係る発明は、スプール部を有する相手方のパイプの端末が挿入されるハウジングと、チューブに圧入することにより前記ハウジングを取り付けるためのタケノコ形の圧入取付部と、前記パイプと前記ハウジングとを結合するリテーナと、を有するクイックコネクタにおいて、前記ハウジングを導電性を有する樹脂材料から成形するとともに、前記ハウジングの材料の導電性樹脂に燃料が直接接触することを部分的に遮断する保護部を設けたことを特徴とするものである。好ましくは、保護部は、ハウジングの圧入取付部に設けられる。   In order to achieve the above object, the invention according to claim 1 includes a housing into which a terminal of a mating pipe having a spool portion is inserted, and a bamboo shoot-type press fitting for mounting the housing by press fitting into a tube. And a retainer that joins the pipe and the housing, the housing is molded from a conductive resin material, and the fuel is in direct contact with the conductive resin of the housing material This is characterized in that a protective part for partially blocking the above is provided. Preferably, the protection part is provided in the press-fit mounting part of the housing.

本発明において、前記保護部は、金属製若しくは導電性でかつ耐燃料油性を有する樹脂材料からなるカラーから構成することができる。   In the present invention, the protective portion can be made of a metal or a collar made of a conductive and fuel oil-resistant resin material.

また、前記保護部は、表面処理により耐燃料油性を付加した表面処理膜から構成することもできる。この表面処理膜には、圧入取付部の内径面の表面に酸化炎を当てるフレーム処理またはイトロ処理により形成した酸化膜が好ましい。   Moreover, the said protection part can also be comprised from the surface treatment film | membrane which added fuel oil resistance by surface treatment. The surface treatment film is preferably an oxide film formed by flame treatment or itro treatment in which an oxidation flame is applied to the surface of the inner diameter surface of the press-fit mounting portion.

さらに、本発明では、保護部を形成する耐燃料油性の高い樹脂と、前記ハウジングの本体部を形成する導電性樹脂との２色成形により、保護部を形成するようにしてもよい。   Furthermore, in the present invention, the protective portion may be formed by two-color molding of a resin having high fuel oil resistance that forms the protective portion and a conductive resin that forms the main body portion of the housing.

保護部を形成する樹脂は、ポリフェニレンスルファイド（ＰＰＳ）、エチレンテトラフルオロエチレン（ＥＴＦＥ）、ポリフッ化ビニリデン（ＰＶＤＦ）、ポリアミド（ＰＡ６Ｔ、ＰＡ９Ｔ）、フッ素ゴム、リキッドクリスタライズポリマー（ＬＣＰ）、ナノコンポジット（ＮＣＨ）のうち、いずれかを用いることが好ましい。   The resin forming the protective part is polyphenylene sulfide (PPS), ethylenetetrafluoroethylene (ETFE), polyvinylidene fluoride (PVDF), polyamide (PA6T, PA9T), fluororubber, liquid crystallized polymer (LCP), nanocomposite ( NCH) is preferably used.

本発明によれば、導電仕様のクイックコネクタにおける燃料と直接接触する面に燃料に対する耐性の高い保護部を設け、この保護部によって直接接触を遮断することにより、電気抵抗の増大を防止し静電気を逃がすために必要な導電性を確保することができる。   According to the present invention, a protective portion having high resistance to fuel is provided on the surface of the quick connector of conductive specification that directly contacts the fuel, and the direct contact is blocked by this protective portion, thereby preventing an increase in electrical resistance and preventing static electricity. Conductivity necessary for escape can be ensured.

以下、本発明によるクイックコネクタの一実施形態について、添付の図面を参照しながら説明する。
図１は、本発明の一実施形態によるクイックコネクタの縦断面図である。この図１において、参照番号１０は、クイックコネクタの全体を示す。１２はクイックコネクタのハウジングで、１６がリテーナである。相手方のパイプ１４は、金属管であって、端末加工を施すことにより、端末から所定の距離だけ離れた位置に、外周部を周回するスプール部１５が形成されている。 Hereinafter, an embodiment of a quick connector according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a longitudinal sectional view of a quick connector according to an embodiment of the present invention. In FIG. 1, reference numeral 10 indicates the entire quick connector. Reference numeral 12 denotes a quick connector housing, and 16 denotes a retainer. The counterpart pipe 14 is a metal pipe, and a spool portion 15 that circulates around the outer peripheral portion is formed at a position away from the end by a predetermined distance by performing end processing.

クイックコネクタ１０のハウジング１２は、相手方のパイプ１４が挿入される挿入口２０が開口している雌形の継手を構成するとともに、樹脂製のチューブ１７を圧入により取り付け可能なタケノコ形の圧入取付部１８が一体となっている。ハウジング１２は、圧入取付部１８を含む全体が、カーボンブラックやカーボン繊維などの導電フィラーを混入して導電性を付加した導電性樹脂材料から構成されている。   The housing 12 of the quick connector 10 constitutes a female joint in which an insertion port 20 into which a mating pipe 14 is inserted is opened, and is a bamboo shoot-type press-fit mounting portion to which a resin tube 17 can be attached by press-fit. 18 is united. The entire housing 12 including the press-fit mounting portion 18 is made of a conductive resin material added with conductivity by mixing a conductive filler such as carbon black or carbon fiber.

リテーナ１６について説明すると、このリテーナ１６は、相手方のパイプ１４の外径とほぼ同じ内径のリング部２４と、側枠部２５ａ、２５ｂからなる筒形のプラスチック製部材である。側枠部２５ａ、２５ｂは半径の内外方向に撓めるだけ可撓性を有しており、相手方のパイプ１４のスプール部１５に係合するロック爪２６ａ、２６ｂがそれぞれ一体に形成されている。そして各ロック爪２６ａ、２６ｂの外側面には、段差部２３ａ、２３ｂが形成されている。   The retainer 16 will be described. The retainer 16 is a cylindrical plastic member including a ring portion 24 having an inner diameter substantially the same as the outer diameter of the counterpart pipe 14 and side frame portions 25a and 25b. The side frame portions 25a and 25b are flexible so as to bend inward and outward in the radius, and lock claws 26a and 26b that engage with the spool portion 15 of the counterpart pipe 14 are integrally formed. . Stepped portions 23a and 23b are formed on the outer surfaces of the lock claws 26a and 26b.

一方、ハウジング１２の側面には、各ロック爪２６ａ、２６ｂに対応するように窓部２７ａ、２７ｂが開口している。したがって、リテーナ１６をハウジング１２のチューブ挿入口２０から挿入すると、ロック爪２６ａ、２６ｂの段差部２３ａ、２３ｂが、窓部２７ａ、２７ｂの挿入口側の縁に着脱可能に係合するようになっているので、ハウジング１２から外れないように装着することができる。   On the other hand, windows 27a and 27b are opened on the side surface of the housing 12 so as to correspond to the lock claws 26a and 26b. Therefore, when the retainer 16 is inserted from the tube insertion port 20 of the housing 12, the step portions 23a and 23b of the lock claws 26a and 26b are detachably engaged with the edges of the window portions 27a and 27b on the insertion port side. Therefore, it can be mounted so as not to be detached from the housing 12.

このクイックコネクター１０では、基本的に、ハウジング１２にリテーナ１６を装着した状態で相手方のパイプ１４を押し込むと、リテーナ１６のロック爪２６ａ、２６ｂによってパイプ１４のスプール部が拘束されるので、ハウジング１２とパイプ１４とをワンタッチで結合することができる。   In this quick connector 10, basically, when the mating pipe 14 is pushed in with the retainer 16 mounted on the housing 12, the spool portion of the pipe 14 is restrained by the lock claws 26 a and 26 b of the retainer 16. And the pipe 14 can be coupled with one touch.

図１に示すように、ハウジング１２の内部には段部２９を介して圧入取付部１８を貫通するように通路２１が軸方向に形成されている。そして、この通路を形成する圧入取付部１８の内径面には、保護部３０が形成されており、この保護部３０は、ハウジングの導電性樹脂に燃料が直接接触するのを部分的に遮断する保護構造を構成している。   As shown in FIG. 1, a passage 21 is formed in the housing 12 in the axial direction so as to penetrate the press-fit mounting portion 18 through a step portion 29. A protective portion 30 is formed on the inner diameter surface of the press-fit mounting portion 18 that forms this passage, and this protective portion 30 partially blocks the direct contact of fuel with the conductive resin of the housing. Constructs a protective structure.

以上のように構成されるクイックコネクタによれば、タケノコ形の圧入接続部１８の内部は燃料の流れる通路２１になって燃料が流れる。本実施形態では、この通路２１を保護部３０によって形成しているので、本体側の材料である導電性樹脂と燃料との直接接触が遮断されている。   According to the quick connector configured as described above, the inside of the bamboo-push press-fit connection portion 18 becomes the passage 21 through which the fuel flows, and the fuel flows. In the present embodiment, since the passage 21 is formed by the protective portion 30, direct contact between the conductive resin, which is the material on the main body side, and the fuel is blocked.

これにより、圧入接続部１８の部分では、保護部３０によって樹脂への燃料の浸透が遮断されることにより、この部分の電気抵抗が増大することを効果的に予防することができる。   Thereby, in the part of the press-fit connection part 18, it can prevent effectively that the electrical resistance of this part increases by the penetration | infiltration of the fuel to resin by the protection part 30 being interrupted | blocked.

燃料系配管では、燃料タンクの燃料をポンプで吐出するとき、また、燃料チューブの流路抵抗による摩擦によって静電気が発生する。静電気が帯電するのは、主として、タケノコ形の圧入接続部１８の方に接続される樹脂製のチューブ１７の方である。したがって、静電気を逃がすには、圧入接続部１８からアースをとった場合では、電気抵抗の増大もなく、静電気が逃げ易い条件を維持することができる。   In the fuel system piping, static electricity is generated when the fuel in the fuel tank is discharged by a pump and due to friction caused by the flow path resistance of the fuel tube. The static electricity is charged mainly in the resin tube 17 connected to the bamboo-push press-fit connection portion 18. Therefore, in order to release static electricity, when grounding from the press-fit connection portion 18, the electrical resistance does not increase, and the condition that the static electricity can easily escape can be maintained.

以下、本発明について実施例によりさらに詳細に説明する。
実施例１
この実施例１では、ハウジング１２とは別部材であるアルミなどの金属製のカラーを用いて、図１の保護部３０を構成した。カラーの埋め込みについては、カラーをインサートとして、ハウジング１２を成形するのと同時に行った。インサート成形の代わりに、ハウジング１２の圧入取付部１８の内径に圧入代を設定しておき、カラーを圧入するようにしてもよい。 Hereinafter, the present invention will be described in more detail with reference to examples.
Example 1
In Example 1, the protection unit 30 of FIG. 1 is configured using a metal collar such as aluminum which is a separate member from the housing 12. The embedding of the collar was performed simultaneously with the molding of the housing 12 using the collar as an insert. Instead of insert molding, a press-fitting allowance may be set for the inner diameter of the press-fit mounting portion 18 of the housing 12 to press-fit the collar.

実施例２
実施例１では、保護部３０を形成するカラーが金属製であるのに対して、この実施例２では、カラーを耐燃料油性能が高い樹脂であって、かつ導電性を付加した樹脂材料を用いて成形した。このカラーの材料に適した樹脂としては、ポリフェニレンスルファイド（ＰＰＳ）、エチレンテトラフルオロエチレン（ＥＴＦＥ）、ポリフッ化ビニリデン（ＰＶＤＦ）、ポリアミド（ＰＡ６Ｔ、ＰＡ９Ｔ）、フッ素ゴム、リキッドクリスタライズポリマー（ＬＣＰ）、ナノコンポジット（ＮＣＨ）がある。なお、カラーは圧入して取り付けた。 Example 2
In Example 1, the collar forming the protective part 30 is made of metal, whereas in Example 2, the collar is made of a resin material with high fuel oil resistance and added with conductivity. And molded. Resins suitable for this color material include polyphenylene sulfide (PPS), ethylene tetrafluoroethylene (ETFE), polyvinylidene fluoride (PVDF), polyamide (PA6T, PA9T), fluoro rubber, liquid crystallized polymer (LCP), There is a nanocomposite (NCH). The collar was press-fitted and attached.

実施例３
この実施例３では、圧入取付部１８の内径面にバーナーから酸化炎を吹き付け、酸化被膜を形成するフレーム処理を施し、この酸化皮膜を保護部３０とした。 Example 3
In Example 3, an oxide flame was blown from the burner to the inner diameter surface of the press-fit mounting portion 18 to perform a flame treatment for forming an oxide film, and this oxide film was used as the protection portion 30.

実施例４
この実施例４では、実施例３と同じくバーナーで圧入取付部１８の内径面に酸化炎を吹き付け、その際、燃焼用空気の中に微量のイトロ添加剤を混合し、圧入取付部１８の内径面に二酸化ケイ素被膜を形成するイトロ処理を施し、この二酸化ケイ素皮膜を保護部３０とした。 Example 4
In the fourth embodiment, an oxidizing flame is sprayed onto the inner diameter surface of the press-fit mounting portion 18 with a burner as in the third embodiment. At that time, a small amount of itro additive is mixed into the combustion air, and the inner diameter of the press-fit mounting portion 18 is Itro treatment for forming a silicon dioxide film on the surface was performed, and this silicon dioxide film was used as the protection part 30.

実施例５
実施例５では、２色成形により、ハウジング１２の本体と保護部３０を成形した。この場合、保護部３０を成形する樹脂には、耐燃料油性能が高い樹脂であって、かつ導電性を付加した樹脂材料を用いて成形した。これに適した樹脂としては、ポリフェニレンスルファイド（ＰＰＳ）、エチレンテトラフルオロエチレン（ＥＴＦＥ）、ポリフッ化ビニリデン（ＰＶＤＦ）、ポリアミド（ＰＡ６Ｔ、ＰＡ９Ｔ）、フッ素ゴム、リキッドクリスタライズポリマー（ＬＣＰ）、ナノコンポジット（ＮＣＨ）がある。 Example 5
In Example 5, the main body of the housing 12 and the protection part 30 were molded by two-color molding. In this case, the protective part 30 is molded using a resin material having high fuel oil resistance and having conductivity. Suitable resins include polyphenylene sulfide (PPS), ethylene tetrafluoroethylene (ETFE), polyvinylidene fluoride (PVDF), polyamide (PA6T, PA9T), fluororubber, liquid crystallized polymer (LCP), nanocomposite ( NCH).

実施例６
実施例６では、実施例５の２色成形と、実施例３のフレーム処理を組み合わせ、成形した保護部３０の表面を酸化炎でフレーム処理を行った。 Example 6
In Example 6, the two-color molding of Example 5 and the frame processing of Example 3 were combined, and the surface of the molded protective part 30 was subjected to frame processing with an oxidizing flame.

実施例７
実施例７では、実施例５の２色成形と、実施例４のイトロ処理を組み合わせ、成形した保護部３０の表面を微量のイトロ添加剤を混合した空気で燃焼させた酸化炎でイトロ処理を行った。 Example 7
In Example 7, the two-color molding of Example 5 and the ittro process of Example 4 were combined, and the surface of the molded protective part 30 was subjected to the itro process with an oxidation flame burned with air mixed with a small amount of itro additive. went.

以上、本発明について、好適な実施形態を挙げて説明したが、本発明は、図２に従来技術として挙げた、リテーナを横から押し込む形式のクイックコネクタにも適用できることはもちろんである。   Although the present invention has been described with reference to a preferred embodiment, it is needless to say that the present invention can also be applied to a quick connector of a type in which a retainer is pushed in from the side as shown in FIG.

本発明によるクイックコネクタの一実施形態を示す縦断面図。The longitudinal cross-sectional view which shows one Embodiment of the quick connector by this invention. 従来のクイックコネクタの縦断面図。The longitudinal cross-sectional view of the conventional quick connector.

符号の説明Explanation of symbols

１０ クイックコネクタ
１２ ハウジング
１４ 相手方のパイプ
１５ スプール部
１６ リテーナ
１８ 圧入取付部
２１ 通路
２６ａ、２６ｂ ロック爪
３０ 保護部 DESCRIPTION OF SYMBOLS 10 Quick connector 12 Housing 14 Opposite pipe 15 Spool part 16 Retainer 18 Press-fit attachment part 21 Passage 26a, 26b Lock claw 30 Protection part

Claims (8)

スプール部を有する相手方のパイプの端末が挿入されるハウジングと、チューブに圧入することにより前記ハウジングを取り付けるためのタケノコ形の圧入取付部と、前記パイプと前記ハウジングとを結合するリテーナと、を有するクイックコネクタにおいて、
前記ハウジングを導電性を有する樹脂材料から成形するとともに、前記ハウジングの材料の導電性樹脂に燃料が直接接触することを部分的に遮断する保護部を設けたことを特徴とするクイックコネクタ。 A housing into which the end of the other pipe having the spool portion is inserted; a bamboo shoot-type press-fit mounting portion for mounting the housing by press-fitting into a tube; and a retainer that couples the pipe and the housing. In quick connector,
A quick connector characterized in that the housing is molded from a resin material having conductivity, and a protective portion is provided to partially block direct contact of fuel with the conductive resin of the housing material. 前記保護部は、金属製若しくは導電性でかつ耐燃料油性を有する樹脂材料からなるカラーからなることを特徴とする請求項１に記載のクイックコネクタ。   The quick connector according to claim 1, wherein the protective portion is made of a metal or a collar made of a resin material having conductivity and fuel oil resistance. 前記保護部は、表面処理により耐燃料油性を付加した表面処理膜からなることを特徴とする請求項１に記載のクイックコネクタ。   The quick connector according to claim 1, wherein the protective portion is made of a surface treatment film to which fuel oil resistance is added by surface treatment. 前記表面処理膜は、表面に酸化炎を当てるフレーム処理またはイトロ処理により形成した酸化膜からなることを特徴とする請求項１に記載のクイックコネクタ。   2. The quick connector according to claim 1, wherein the surface treatment film is formed of an oxide film formed by flame treatment or itro treatment that applies an oxidation flame to the surface. 3. 前記保護部を形成する耐燃料油性の高い樹脂と、前記ハウジングの本体部を形成する導電性樹脂との２色成形により、該ハウジングを形成したことを特徴とする請求項１に記載のクイックコネクタ。   2. The quick connector according to claim 1, wherein the housing is formed by two-color molding of a resin having high fuel oil resistance that forms the protective portion and a conductive resin that forms the main body portion of the housing. . 前記保護部には、さらに、表面を酸化炎を当てるフレーム処理またはイトロ処理を施したしたことを特徴とする請求項５に記載のクイックコネクタ。   The quick connector according to claim 5, wherein the protective portion is further subjected to a frame treatment or an ittro treatment on which the surface is exposed to an oxidation flame. 前記保護部を形成する樹脂は、ポリフェニレンスルファイド（ＰＰＳ）、エチレンテトラフルオロエチレン（ＥＴＦＥ）、ポリフッ化ビニリデン（ＰＶＤＦ）、ポリアミド（ＰＡ６Ｔ、ＰＡ９Ｔ）、フッ素ゴム、リキッドクリスタライズポリマー（ＬＣＰ）、ナノコンポジット（ＮＣＨ）のうち、いずれか一種の樹脂であることを特徴とする請求項５に記載のクイックコネクタ。   The resin forming the protective part is polyphenylene sulfide (PPS), ethylenetetrafluoroethylene (ETFE), polyvinylidene fluoride (PVDF), polyamide (PA6T, PA9T), fluoro rubber, liquid crystallized polymer (LCP), nanocomposite. The quick connector according to claim 5, wherein the quick connector is any one kind of resin among (NCH). 前記保護部を前記ハウジングの圧入取付部の内径面に設けたことを特徴とする請求項１乃至７のいずれかの項に記載のクイックコネクタ。   The quick connector according to claim 1, wherein the protective portion is provided on an inner diameter surface of a press-fit mounting portion of the housing.
JP2005108798A 2005-04-05 2005-04-05 Quick connector Expired - Fee Related JP4712423B2 (en)

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US7938454B2 (en) 2007-04-24 2011-05-10 Hyclone Laboratories, Inc. Sterile connector systems
US8702129B2 (en) 2007-04-24 2014-04-22 Hyclone Laboratories, Inc. Sterile connector systems
CN108587155A (en) * 2018-05-25 2018-09-28 郑州智锦电子科技有限公司 A kind of heat conduction polyamide compoiste material and preparation method thereof

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JPS5717761U (en) * 1980-07-04 1982-01-29
JP2002188782A (en) * 2000-10-12 2002-07-05 Tokai Rubber Ind Ltd Resin-made connector
JP2005024016A (en) * 2003-07-03 2005-01-27 Tokai Rubber Ind Ltd Welding joint for connecting resin tube of fuel tank

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JP3006359B2 (en) * 1993-09-06 2000-02-07 東海ゴム工業株式会社 Quick connector
JP2001090888A (en) * 1999-09-24 2001-04-03 Tokai Rubber Ind Ltd Engagement holding member made of heat resistant resin
JP3747784B2 (en) * 2001-02-01 2006-02-22 東海ゴム工業株式会社 Resin connector

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JPS5717761U (en) * 1980-07-04 1982-01-29
JP2002188782A (en) * 2000-10-12 2002-07-05 Tokai Rubber Ind Ltd Resin-made connector
JP2005024016A (en) * 2003-07-03 2005-01-27 Tokai Rubber Ind Ltd Welding joint for connecting resin tube of fuel tank

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