JP4367746B2 - Connector for small diameter pipe connection - Google Patents

Connector for small diameter pipe connection Download PDF

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Publication number
JP4367746B2
JP4367746B2 JP2003057029A JP2003057029A JP4367746B2 JP 4367746 B2 JP4367746 B2 JP 4367746B2 JP 2003057029 A JP2003057029 A JP 2003057029A JP 2003057029 A JP2003057029 A JP 2003057029A JP 4367746 B2 JP4367746 B2 JP 4367746B2
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connector
confirmation
wall
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small
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JP2004263826A (en
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一美 深谷
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Usui Co Ltd
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Usui Co Ltd
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【０００１】
【発明の属する技術分野】
本発明は、一般に自動車或いは各種の機械、装置等に給油、給気等の供給路として配設される管径が凡そ２０ｍｍ程度以下の、比較的細径からなる金属管ないしは樹脂チューブ（以下単に「配管」という。）の接続用コネクターに係り、詳しくは配管と相手部品との接続に際し、簡略な操作で配管流路と、コネクター本体と相手部品との気密が同時に保持し得ると共に、適正な接続状態を確認し、その状態を維持し得る細径配管接続用コネクターに関する。
【０００２】
【従来の技術】
この種の細径配管接続用コネクターは相手部品と配管との間に介在して、流路の気密と適正な接続を確保するために機能するもので、すでに多種多様なものが汎用されている。最近はコストの低減と機能の充実とを合わせて要求されるところから、コンパクトな構造で且つ簡略な操作で所期の目的を達成し得る細径配管接続用コネクターが提案されている。
【０００３】
例えば図３６に示す細径配管接続用コネクター（以下、単に「コネクター」という。）においては、軸芯に配管を嵌挿する孔が貫設され、一端にフランジ部２０１−１、それに連なる他端が円筒部２０１−２からなるコネクター本体２０１であって、該円筒部２０１−２の該フランジ部２０１−１の近傍には、相手部品への組み付けの際、該相手部品の雌ネジに螺合するための雄ネジ２０８が形成されている。該円筒部２０１−２の該雄ネジ２０８の形成部を除く外周方向に、４等分された切欠き部２０５が形成され、該切欠き部２０５の切欠き残部がそれぞれ舌状の弾性爪壁２０４をなして内方に付勢されている。該弾性爪壁２０４の先端爪先２０４−１は半円弧状に形成され、その内周面には溝部２０４−２が設けられ、該溝部２０４−２は配管接続前にはシールリング部材２０７を収納するスペースとして用いられる。また、前記フランジ部２０１−１は相手部品に組み込む際、スパナを係合するために好ましくは六角のナット状に形成され、該ナット状フランジ部２０１−１の外周部のほぼ全周に亘りノッジ（切り込み）２０９が施され、該ノッジ２０９はコネクター本体２０１を相手部品に螺合して組み込む際に、その弾発力でスプリングワッシャの代用としてゆるみ止めに機能している。
【０００４】
上記のコネクターは、従来公知のコネクターに比較し、構造上コンパクトであるにも拘らずコネクター本体と相手部品との組み付けが強固で、配管流路の気密と共に、コネクター本体と相手部品との気密をも同時に確保できるということが確認されている。しかしながら上記コネクターは、接続完了時に接続状態を確認するための所謂確認部材を備えていないところから、接続完了時に外見目視によるか、若しくは配管に引き抜き力を加えるかのいずれか、或いはその両方の手段によって確認作業を行っているが、作業者個人の熟練度に依存する方法であり、その信頼性に不安を残すものであった。
【０００５】
又、図３７に示すコネクターにおいては、軸芯内部に小径室１０３′と大径室１０３とを貫設してなるコネクター本体１０１の該小径室部１０３′にシールリング部材１０６と、ブッシュ部材１０７とを内装せしめ、かつ大径室１０３の周壁のなす対向部位に穿設した切欠き窓溝部１０１′に、その中間付近を屈曲して内方で前方に付勢された爪壁１０５となすと共に、前記屈曲部から前方に突出する舌状弾発壁１０１″を一体に形成せしめ、更に前記小径室１０３′の周壁の外周側に回動自在となす筒環部材１０８を装着し、更に対向する両側部にそれぞれ掛合壁１０９′と、その内側に掛支壁１０９″とを一体に突設した挟み状からなる確認部材本体１０９をもって、外側の前記掛合壁１０９′部側をコネクター本体１０１の弾発壁１０１″と、また前記掛支壁１０９″部を、その先端部をコネクター本体１０１のなす対向側面部に、掛着した状態をもって爪壁部１０５の前記屈曲部の内側と係合可能に構成したコネクターが提案されている。
【０００６】
【発明が解決しようとする課題】
上記コネクターによれば、確認部材本体の機能により配管の接続状態は確実に把握することが可能となるが、接続完了後の確認部材がコネクター本体の外径方向に大きくオーバーハングし、コネクター周辺の占有スペースをより大ならしめるという不都合が生ずる上、他の装置や部品等との接触によって思わぬ損傷を招くことも懸念されるなど、なお改善を望まれる課題を残していた。
【０００７】
本発明は斯かる従来技術に残された課題を解決することを目的とし、具体的にはよりコンパクトな構造を維持しながら、安全かつ簡略な操作で相手部品と細径配管との接続を完了し、その接続状態が適正に保たれていることを確実に確認することが可能で、しかも配管流路と配管接続用コネクターと相手部品との気密が、十分に確保し得る細径配管接続用コネクターを提供することにある。
【０００８】
【課題を解決するための手段】
上記目的を達成しうるための本発明による第１の実施態様は、軸芯に細径配管を嵌挿する孔が貫設され、その孔に連なる内径部後方には内装部材本体の雄ネジに螺合するための雌ネジが形成され、一方、外周方向の一端に対応する相手部品に当接するフランジ部、それに連なる他端が相手部品の雌ネジに螺合して一体に組み付けられるための雄ネジを有する円筒部からなり、該雄ネジを除く円筒部の外周方向に等分に少なくとも２以上の切欠き部が設けられ、該切欠き部の切欠き残部が、それぞれ舌状の弾性爪壁をなして内方に付勢され、該弾性爪壁の先端爪先部分は半円弧状に形成され、その内周面にはシールリング部材を内装する溝部と、該溝部に連続して配管スプール部との係合壁が設けられてなるコネクター本体と、軸芯に細径配管を嵌挿する孔が貫設され、後方に前記コネクター本体のフランジ部に当接する確認部材組み付け部、それに連なる外周方向他端が円筒部からなり、該円筒部の確認部材組み付け部近傍に、前記コネクター本体の内径部後方に設けられた雌ネジに螺合し、一体に係合されるための雄ネジが形成されてなる確認部材本体を保持するための内装部材本体と、前記内装部材本体の確認部材組み付け部に設けられた側面から押し込むための押し壁と、コネクター突き当て壁とからなる確認部材本体であって、該確認部材本体の対向する両側に一体に形成される確認爪のうち、該確認部材本体の反対側端部の軸芯方向に凸部を有する先端側確認爪、該先端側確認爪の対向位置に、より短尺の後端側確認爪が一体に設けられてなる確認部材本体、とからなることを構成上の特徴とする細径配管接続用コネクターにある。
【０００９】
本発明に係る第２の実施態様は、前記実施態様１に記載の細径配管接続用コネクターにおいて、前記コネクター本体のフランジ部が、スパナ等の汎用工具によって相手部品に強固に組み付け易くするため、ナット状に形成されてなることを構成上の特徴とする細径配管接続用コネクターにある。
【００１０】
本発明に係る第３の実施態様は、前記実施態様１に記載の細径配管接続用コネクターにおいて、前記内装部材本体の確認部材組み付け部には、確認部材突き当て壁を有し、更に前記確認部材本体の先端側確認爪の凸部を収納する穴部と、前記先端側確認爪により挟持される外壁が、前記コネクター本体のフランジ部と同形状に設けられてなることを構成上の特徴とする細径配管接続用コネクターにある。
【００１１】
本発明に係る第４の実施態様は、前記実施態様１に記載の細径配管接続用コネクターにおいて、前記確認部材本体の先端側確認爪の凸部から確認部材本体方向の壁面に、軸芯側に傾斜したテーパー壁が形成され、該テーパー壁と確認部材本体との間に、細径配管の後端側スプール逃げ部が設けられてなることを構成上の特徴とする細径配管接続用コネクターにある。
【００１２】
本発明に係る第５の実施態様は、軸芯に細径配管を嵌挿する孔が貫設され、その孔に連なる内径部後方には内装部材本体の雄ネジに螺合するための雌ネジが形成され、一方、外周方向の一端に対応する相手部品に当接するフランジ部、それに連なる他端が相手部品の雌ネジに螺合して一体に組み付けられるための雄ネジを有する円筒部からなり、該雄ネジを除く円筒部の外周方向に等分に少なくとも２以上の切欠き部が設けられ、該切欠き部の切欠き残部が、それぞれ舌状の弾性爪壁をなして内方に付勢され、該弾性爪壁の先端爪先部分は半円弧状に形成され、その内周面にはシールリング部材を内装する溝部と、該溝部に連続して配管スプール部との係合壁が設けられてなるコネクター本体と、軸芯に細径配管を嵌挿する孔が貫設され、後方に前記コネクター本体のフランジ部に当接する確認部材組み付け部、それに連なる外周方向他端が円筒部からなり、該円筒部の確認部材組み付け部近傍に、前記コネクター本体の内径部後方に設けられた雌ネジに螺合し、一体に係合されるための雄ネジが形成されてなる確認部材本体を保持するための内装部材本体と、前記内装部材本体の確認部材組み付け部に設けられた側面から押し込むための押し壁と、コネクター突き当て壁および確認部材突き当て壁とからなる確認部材本体であって、該確認部材本体の対向する両側に一体に形成される確認爪のうち、該確認部材本体の反対側端部の軸芯方向に凸部を有する先端側確認爪、該先端側確認爪の対向位置に、先端に鉤型のフックが形成された前記先端側確認部材より若干短尺の後端側確認爪が一体に設けられてなる確認部材本体、とからなることを構成上の特徴とする細径配管接続用コネクターにある。
【００１３】
本発明に係る第６の実施態様は、前記実施態様５に記載の細径配管接続用コネクターにおいて、前記コネクター本体のフランジ部が、スパナ等の汎用工具によって相手部品に強固に組み付け易くするため、ナット状に形成されてなることを構成上の特徴とする細径配管接続用コネクターにある。
【００１４】
本発明に係る第７の実施態様は、前記実施態様５に記載の細径配管接続用コネクターにおいて、前記内装部材本体の確認部材組み付け部には、確認部材突き当て壁を有し、更に前記確認部材本体の先端側確認爪の凸部を収納する穴部と、前記後端側確認爪先端の鉤型のフックを収納する凹部とが形成され、更に前記先端側確認爪の凸部と前記後端側確認爪先端の鉤型のフックとにより挟持される外壁が、前記コネクター本体のフランジ部と同形状に設けられてなることを構成上の特徴とする細径配管接続用コネクターにある。
【００１５】
本発明に係る第８の実施態様は、前記実施態様５に記載の細径配管接続用コネクターにおいて、前記確認部材本体の先端側確認爪の凸部から該確認部材本体方向の壁面に、軸芯側に傾斜したテーパー壁が形成され、該テーパー壁と確認部材本体との間に、細径配管の後端側スプール部逃げ部が設けられてなることを構成上の特徴とする細径配管接続用コネクターにある。
【００１６】
本発明に係る第９の実施態様は、前記実施態様５に記載の細径配管接続用コネクターにおいて、前記確認部材本体に一体に取り付けられる後端側確認爪の、確認部材本体近傍にはスプール部押さえ部が、それに連なる反対側先端部には鉤型のフックが形成され、該フックの先端面は軸芯方向に傾斜したテーパー壁が設けられ、該フックと前記スプール押さえ部との間に、後端側確認爪スプール逃げ部が設けられてなることを構成上の特徴とする細径配管接続用コネクターにある。
【００１７】
本発明に係る第１０の実施態様は、前期実施態様５に記載の細径配管接続用コネクターにおいて、確認部材本体に一体に設けられる２本の後端側確認爪間が半円形に形成され、その内側に細径配管外周部と略同形状の配管突き当て壁、押し壁部にコネクター外壁突き当て壁が形成されてなることを構成上の特徴とする細径配管接続用コネクターにある。
【００１８】
本発明に係る第１１の実施態様は、前期実施態様５に記載の細径配管接続用コネクターにおいて、前記確認部材本体を保持する内装部材本体から、確認部材突き当て壁が取り除かれたことを構成上の特徴とする細径配管接続用コネクターにある。
【００１９】
本発明に係る第１２の実施態様は、軸芯に細径配管を嵌挿する孔が貫設され、外周方向の一端に対応する相手部品に当接するフランジ部、該フランジ部の後方に確認部材本体を保持するための確認部材組み付け部が一体として設けられ、一方、前記フランジ部に連なる他端が、相手部品の雌ネジに螺合し、一体に組み付けられるための雄ネジを有する円筒部からなり、該雄ネジを除く円筒部の外周方向に等分に少なくとも２以上の切欠き部が設けられ、該切欠き部の切欠き残部が、それぞれ舌状の弾性爪壁をなして内方に付勢され、該弾性爪壁の先端爪先部分は半円弧状に形成され、その内周面にはシールリング部材を内装する溝部と、それに連なるスプール部との当接壁が設けられてなるコネクター本体と、前記コネクター本体のフランジ部に一体として設けられ、確認部材先端側確認爪の凸部を収納する穴部と、該先端側確認爪の凸部によって挟持される外周壁を有する確認部材組み付け部と、前記確認部材組み付け部に設けられた側面から押し込むための押し壁と、コネクター外壁突き当て壁および確認部材突き当て壁とからなる確認部材本体において、該確認部材本体の対向する両側に一体に形成される確認爪のうち、該確認部材本体の反対側端部の軸芯方向に凸部を有する先端側確認爪、該先端側確認爪の対向位置に、より短尺の後端側確認爪が一体に設けられてなる確認部材本体、とからなることを構成上の特徴とする細径配管接続用コネクターにある。
【００２０】
本発明に係る第１３の実施態様は、前記実施態様第１２に記載の細径配管接続用コネクターにおいて、前記コネクター本体のフランジ部及び該フランジ部の後方に一体として設けられる確認部材組み付け部の外周面が、スパナ等の汎用工具によって相手部品に強固に組み付け易くするため、ナット状に形成されてなることを構成上の特徴とする細径配管接続用コネクターにある。
【００２１】
本発明に係る第１４の実施態様は、前記実施態様第１２に記載の細径配管接続用コネクターにおいて、前記確認部材本体に一体に設けられる２本の後端側確認爪間が半円形に形成され、その内側に細径配管外周部と略同形状の配管突き当て壁、押し壁部にコネクター外壁突き当て壁が形成されてなることを構成上の特徴と細径配管接続用コネクターにある。
【００２２】
本発明に係る第１５の実施態様は、前記実施態様第１２に記載の細径配管接続用コネクターにおいて、前記確認部材本体を保持する確認部材組み付け部から、確認部材突き当て壁が取り除かれてなることを構成上の特徴とする細径配管接続用コネクターにある。
【００２３】
本発明に係る第１６の実施態様は、前記実施態様第１２に記載の細径配管接続用コネクターにおいて、前記コネクター本体が、軸芯に細径配管を嵌挿する孔が貫設され、外周方向の一端に対応する相手部品に当接するフランジ部、該フランジ部の後方に確認部材本体を保持するための確認部材組み付け部が一体として設けられ、一方、前記フランジ部に連なる他端が、相手部品の雌ネジに螺合し、一体に組み付けられるための雄ネジを有する円筒部からなり、該雄ネジを除く円筒部の略１／２部分が先端に向かって先細るテーパー状に、残部が円筒状に形成された爪壁をなし、該爪壁先端の爪先部分の内周面に、シーリング部材を内装する半円弧状の溝部が形成されてなることを構成上の特徴とする細径配管接続用コネクターにある。
【００２４】
本発明に係る第１７の実施態様は、前記実施態様第１２に記載の細径配管接続用コネクターにおいて、前記コネクター本体が、軸芯に細径配管を嵌挿する孔が貫設され、外周方向の一端に対応する相手部品に当接するフランジ部、該フランジ部の後方に確認部材本体を保持するための確認部材組み付け部が一体として設けられ、一方、前記フランジ部に連なる他端が、相手部品の雌ネジに螺合し、一体に組み付けられるための雄ネジを有する円筒部からなり、該雄ネジを除く円筒部の外周方向に等分に少なくとも２以上の切欠き部が設けられ、該切欠き部の切欠き残部が、それぞれ舌状の弾性爪壁をなして内方に付勢され、該弾性爪壁の先端爪先部分の内周面には、シールリング部材を内装する半円弧状の溝部が形成されてなることを構成上の特徴とする細径配管接続用コネクターにある。
【００２５】
本発明に係る第１８の実施態様は、前記実施態様第１乃至１７のいずれかに記載の細径配管接続用コネクターにおいて、前記細径配管接続用コネクターを介して相手部品に取り付けられる細径配管の端末に、所定間隔で複数のスプール部が形成され、該スプール部によりシーリング部材、バックアップリング、スプール部外径調節部材及び／又は弾性シーリング部材を保持し、相手部品の連結筒壁に係圧して該相手部品の流路と細径配管端末との気密を確保すると共に、スプール部外径の調節若しくはコネクター系内への塵埃の混入を防止することを構成上の特徴とする細径配管接続用コネクターにある。
【００２６】
本発明に係る第１９の実施態様は、前記実施態様第５乃至１８のいずれかに記載の細径配管接続用コネクターにおいて、前記確認部材本体にリリース用の爪を設けてなることを構成上の特徴とする細径配管接続用コネクターにある。
【００２７】
【発明の実施の形態】
以下本発明を添付した図面に基づき更に詳細に説明するが、本発明はこれにより拘束されるものではなく、本発明の主旨の範囲内において自由に設計変更が可能である。
図１は本発明の細径配管接続用コネクターの一実施例に係る細径配管接続状態を示す図で、（ａ）は縦断側面図、（ｂ）はその背面図、図２は同実施例おける細径配管接続前の状態を示す図で、（ａ）は縦断側面図、（ｂ）はその背面図、図３は同実施例で配管接続後、接続状態を確認する前の状態を示す説明図で、（ａ）はその縦断側面図、（ｂ）はその背面図、図４は同実施例並びにその応用例に用いる細径配管端末と、同配管に組み込まれたバックアップリング及びスプール部外径調節部材の説明図で、（ａ）は前記実施例に組み込まれた細径配管端末とバックアップリングとの一部破断側面図、（ｂ）はその応用例の細径配管端末とスプール部外径調節部材との一部半載側面図、（ｃ）は他の応用例の細径配管とスプール部外径調節部材との一部半載側面図、図５は前記実施例に組み込まれる確認部材本体の単体を示す図で、（ａ）はその正面図、(ｂ)はその平面図、（ｃ）はその側面図、図６は同実施例の内装部材本体の単体を示し、(ａ)はその背面図、（ｂ）はその平面図、（ｃ）はその縦断側面図、図７は同実施例のコネクター本体とそれに組み込まれるシールリング部材を示す縦断側面図、図８は同実施例に用いられるコネクター本体単体の図で、（ａ）はその縦断側面図、（ｂ）はその正面図、図９は同実施例の応用例の細径配管接続状態（図１に相当）を示す図で、（ａ）はその縦断側面図、（ｂ）はその背面図、図１０は同応用例に組み込まれる細径配管の一部破断側面図（図４に相当）、図１１は同実施例の他の応用例の細径配管接続状態(図１に相当)を示す図で、（ａ）はその縦断側面図、（ｂ）はその背面図、図１２は同応用例に組み込まれる細径配管の一部破断側面図（図４に相当）、図１３は他の実施例の細径配管接続状態（図１に相当）を示す図で、（ａ）はその縦断側面図、（ｂ）はその背面図、図１４は同実施例における細径配管接続前の状態（図２に相当）を示す図で、(ａ)はその縦断側面図、（ｂ）その背面図、図１５は同実施例の細径配管接続後、接続状態を確認する前の状態（図３に相当）を示す図で、(ａ)は縦断側面図、（ｂ）は背面図であり、図１６は同実施例に組み込まれる確認部材本体の単体（図５に相当）を示す図で、(ａ)はその正面図、（ｂ）はその平面図、（ｃ）はその側面図、図１７は同実施例に組み込まれる内装部材本体の単体（図６に相当）を示す図で、(ａ)はその背面図、（ｂ）はその平面図、（ｃ）はその縦断側面図、図１８は本発明の更に他の実施例の細径配管接続状態（図１に相当）を示す図で、(ａ)その縦断側面図、（ｂ）はその背面図、図１９は同実施例に組み込まれ確認部材本体の単体（図５に相当）を示し、（ａ）はその正面図、（ｂ）はその平面図、（ｃ）はその側面図、図２０は同実施例に組み込まれる内装部材本体の単体（図６に相当）を示す図で、(ａ)はその背面図、（ｂ）はその平面図、（ｃ）はその縦断側面図であり、図２１は本願に係る更に他の発明の一実施例の細径配管接続状態（図１に相当）を示す図で、(ａ) はその縦断側面図、（ｂ）はその背面図であり、図２２は同実施例におけるコネクター本体の単体を示す４面図で、（ａ）はその背面図、（ｂ）はその縦断側面図、（ｃ）はその平面図、（ｄ）はその正面図、図２３は本願に係る更に他の発明の一実施例の細径配管接続状態（図１に相当）を示す図で、（ａ）はその縦断側面図、（ｂ）はその背面図、図２４は同実施例に組み込まれる細径配管の一部破断側面図（図４に相当）、図２５は同実施例に組み込まれるコネクター本体の単体（図２２に相当）を示す図で、（ａ）はその背面図、（ｂ）はその縦断側面図、（ｃ）はその平面図、（ｄ）はその正面図、図２６は本願に係る更に他の発明の一実施例に組み込まれるコネクター本体の単体（図２２に相当）を示す図で、（ａ）はその背面図、（ｂ）はその縦断側面図、（ｃ）はその平面図、（ｄ）はその正面図であり、図２７は従来から汎用されているクイックコネクターに、本発明に係る確認部材本体を適用した実施例の細径配管接続状態（図１に相当）を示す図で、（ａ）はその長手方向半載縦断側面図、（ｂ）はその背面図、図２８は同実施例における細径配管接続前の状態（図２に相当）を示す図で、（ａ）はその長手方向半載縦断側面図、（ｂ）はその背面図、図２９は同実施例における細径配管接続後、接続状態を確認する前の状態（図３に相当）を示す図で、（ａ）はその長手方向半載縦断側面図、（ｂ）はその背面図、図３０は同実施例において組み込まれるコネクター本体の単体を示す図で、（ａ）はその長手方向半載縦断側面図、（ｂ）はその正面図、図３１は同実施例に組み込まれる細径配管の一部破断側面図（図４に相当）、図３２は同実施例に組み込まれる確認部材本体の単体（図５に相当）を示す図で、（a）はその正面図、（ｂ）はその平面図、（ｃ）はその側面図、図３３は更に他の実施例における確認部材本体の単体（図５に相当）を示す図で、（ａ）はその正面図、（ｂ）はその平面図、（ｃ）はその側面図、図３４は同実施例の応用例における確認部材本体の単体（図５に相当）を示す図で、（ａ）はその正面図、（ｂ）はその平面図、（ｃ）はその側面図であり、図３５は従来から汎用されている更に他のコネクターに、本発明に係る確認部材本体を適用した実施例の細径配管接続状態（図１に相当）を示す図で、（ａ）はその長手方向半載縦断側面図、（ｂ）は（ａ）のｂ−ｂ線上の断面図である。
【００２８】
本発明における第1の実施態様において用いられる細径配管接続用コネクター（以下、単に「コネクター」という。）は、図１〜３並びに図７〜８に示すように、軸芯に細径配管を嵌挿する孔が貫設され、その孔に連なる内径部１−４後方には内装部材本体２の雄ネジ２−４に螺合するための雌ネジ１−５が形成され、一方、外周方向の一端に対応する相手部品８に当接するフランジ部１−２、それに連なる他端が相手部品８の雌ネジ８−１に螺合して一体に組み付けられるための雄ネジ１−３を有する円筒部１−１からなり、該雄ネジ１−３を除く円筒部１−１の外周方向に等分に少なくとも２以上の切欠き部４−１が設けられ、該切欠き部４−１の切欠き残部が、それぞれ舌状の弾性爪壁４をなして内方に付勢され、該弾性爪壁４の先端爪先部分４−２は半円弧状に形成され、その内周面にはＯリング形状のシールリング部材５を内装する略Ｕ字形状の溝部４−３が形成され、該溝部４−３に連続して配管スプール部Ｐ−１との係合壁４−４が設けられてなるコネクター本体２と、軸芯に細径配管を嵌挿する孔が貫設され、後方に前記コネクター本体１のフランジ部１−２に当接する確認部材組み付け部２−１、それに連なる外周方向他端が円筒部２−２からなり、該円筒部２−２の確認部材組み付け部２−１近傍に、前記コネクター本体１の内径部１−４後方に設けられた雌ネジ１−５に螺合し、一体に係合されるための雄ネジ２−４が形成されてなる確認部材本体３を保持するための内装部材本体２と、前記内装部材本体２の確認部材組み付け部２−１に側面から押し込むための押し壁３−１と、コネクター突き当て壁３−４とからなる確認部材本体３であって、該確認部材本体３の対向する両側に一体に形成される確認爪のうち、該確認部材本体３の反対側端部の軸芯方向に凸部３−７を有する先端側確認爪３−２、該先端側確認爪３−２の対向位置に、より短尺の後端側確認爪３−３が一体に設けられてなる確認部材本体３とによって構成されている。
【００２９】
本例に用いられる前記コネクターを介して相手部品８に接続される配管Ｐには、図４の（ａ）に示されるように先端側に大小２段の環状膨出部（以下単に「スプール部」という。）を有する先端側スプール部Ｐ−１と、その後方にあって前記確認部材本体に当接する後端側スプール部Ｐ−２が形成されている。本例における前記先端側スプール部Ｐ−１の前方の小径スプール部には、図４（ａ）、（ｂ）および（ｃ）に示されるようにバックアップリング６が巻着され、図１（ｂ）に示されるように配管Ｐの接続完了時には、前記シールリング部材と共に相手部品８の連結筒壁８−３に係圧して配管Ｐと相手部品流路８−２との気密、並びにコネクター本体１と相手部品８との気密をも併せて確保する。図４（ｂ）および（ｃ）には本例の応用例として、後端側スプール部Ｐ−２に巻着されるスプール部外径調節部材６−１および６−２が示されているが、これは本例の確認部材本体３による接続状態の確認に際し、後端側スプール部P−２の外径が先端側スプール部Ｐ−２より若干大きいことが望ましいために用いられるものである。なお、本発明の各実施例において用いられる前記シールリング部材５、バックアップリング６、スプール部外径調節部材６−１、６−２を含む機能的に類似する各部材は、ゴムや樹脂等の弾性材料で構成されることが好ましい。
【００３０】
上記構成を有する本例のコネクターによる細径配管接続方法について更に具体的に説明すると、まずコネクター本体１の相手部品５へ組み込みに際しては、予めシールリング部材５を弾性爪壁4の溝部４−３に装填したコネクター本体１を、相手部品８の取付穴８−４に差し押し込み、該コネクター本体１の円筒部１−１に形成された雄ネジを、該取付穴８−４の入り口付近に形成された雌ネジ８−１に螺合することにより、相手部品８とコネクター本体1の組み込みが完了する。この際、前記コネクター本体１のフランジ部１−２が６角のナット状に形成されていることにより、スパナなど所定の工具により極めて単純且つ容易な操作で強固な組み付けが完了する。
【００３１】
相手部品５への組み込みが完了した後、前記コネクター本体１のフランジ部１−２後方より、図６に示される内装部材本体２の円筒部２−２を差し込み、コネクター本体１の内径部１−４の後方に形成された雌ネジに、内装部材本体２の確認部材組み付け部２−１近傍に形成された雄ネジ２−４を螺合することによりコネクター本体１と内装部材本体２との組み付けが完了する。前記内装部材本体２には図６に示すように、後述する確認部材本体３に一体に形成される先端側確認爪３−２の凸部３−７を収納する穴部２−３と、該凸部３−７に抱き込むように挟持される外壁部２−７、並びに該確認部材突き当て壁２−５とがそれぞれ形成されている。
【００３２】
コネクター本体１への内装部材本体２の組み付けが完了した後、該内装部材本体２へ確認部材本体3を組み込むことにより本例のコネクターが完成するが、この際、内装部材本体２の確認部材組み付け部２−１に押し壁３−１を用いて側面から差し込み、図２の（ｂ）に示すように先端側確認爪３−２の凸部３−７が、内装部材本体２の穴部２−３に挿入されることによって、図２の（ａ）に示すようにコネクター本体１、内装部材本体2および確認部材本体３による組付けが完了する。組み付けの手順は特に制限されるものではなく、内装部材本体２と確認部材本体３とを予め組み付けた後、コネクター本体１へ組み付け、その後相手部品８へ組み付けて図２に示すような形を選択することも可能である。内装部材本体２に組み付けて配管Ｐの接続状態を確認するために機能する上記確認部材本体３は、図５に示すように押し壁３−１とコネクター突き当て壁３−４とからなる確認部材本体３に一体に、相対して先端側確認爪３−２とそれより短尺の後端側確認爪３−３が形成されている。該先端側確認爪３−２の先端部は略Ｌ字状に軸芯方向への凸部３−７が形成され、配管Ｐの接続前は前記内装部材本体２の穴部２−３に挿入されており、配管接続後は同内装部材本体２の外壁２−７を抱えるように挟持する。該凸部３−７の内側は軸芯に向かってテーパー壁部３−５が形成され、該テーパー壁部３−７とコネクター突き当て壁３−４の間にスプール逃げ部３−６が設けられており、配管接続完了後に確認部材本体を更に押し込む際、後端側スプール部Ｐ−２が収納されるスペースとなり、配管Ｐの接続状態を確認するために機能する。なお、前記後端側確認部爪３−３はその際上記の押し込みが可能となることで、後端側スプール部Ｐ−２が不在であることを示し、同様配管の接続状態を確認するために機能する。この際、上記確認部材本体３は配管の接続とその確認の後も、コネクターの一要素として組み込まれた状態を保ち、配管の脱落防止に寄与するが、構造上極めてコンパクトであるため占有スペースが小さく、操作上殆ど妨げになることがない。
【００３３】
上記の如くして図２に示すように相手部品へのコネクターの組み込みが完了した後、コネクター後方より配管Ｐを挿入して接続するが、その際、前述のように配管Ｐの先端側スプール部Ｐ−１の前面小径スプール部には、図4（ａ）に示すように予めバックアップリング６が巻着されている。コネクターの弾性爪壁４の溝部４−３に予め装填されていたシールリング部材６は、先端側スプール部Ｐ−１に押されて内壁部４−５が外径方向に拡径するのに伴い、該溝部４−３から脱落して該バックアップリング６の前方の配管に巻着し、相手部品の連結筒壁８−３との間において係圧され配管流路の気密を完全に保持する。一方、弾性爪壁４の該溝部４−３は軸芯方向に閉じて、該配管Ｐの先端側スプール部Ｐ−１の後方大径スプール部を覆って配管Ｐとコネクター１との接続状態を安定的に維持する。
【００３４】
上記接続に際し、確認部材本体３の先端側確認爪３−２のテーパー壁３−５に後端側スプール部Ｐ−２が当接してこれを押し上げ、該先端側確認爪３−２は確認部材本体３との付け根を基点として外径方向に開き、内装部材本体２の穴部２−３に挿入されていた凸部３−７が該穴部２−３から脱出する（図３参照）。その後確認部材本体の押し壁３−１を前方に押して確認部材本体をスライドさせ、コネクター突き当て壁３−４が内装部材本体の確認部材突き当て壁２−５に当接し、また、該後端側スプール部Ｐ−２はテーパー壁３−５を超えてスプール逃げ部３−６のスペースに位置し、該後端側確認爪を外径方向に押し開く力が消滅する。従って前方にスライドした前記凸部３−７は軸芯方向に閉じて、内装部材本体の外壁２−７を抱きかかえる様に組み付き、図１に示すように適正に配管接続が完了していることが確認される。不適正な接続、例えば半嵌挿状態にある場合は該凸部３−７が該穴部２−３から脱出できず、一方、後端側確認爪３−３もスプール部Ｐ−２に妨げられて、確認部材本体の前方へのスライドを阻止する。なお、図４の（ｂ）および（ｃ）には本例の応用例に用いられる細径配管が開示されているが、詳細は前記した通りである。
【００３５】
図１０および１２には本例の更に他の応用例として、後端側スプール部Ｐ−２′にも先端側スプール部と同様、大小２段のスプールが形成された配管Ｐ′が開示され、前者においては該後端側スプール部Ｐ−２′前方小径スプールに、円筒形状の弾性シーリング部材７を巻着し、後者においては後端側スプール部Ｐ−２′の大小スプール間にＯリング形状の弾性シールリング部材７′を巻着し、それぞれの配管Ｐ′を本例のコネクターを介し、本例と同様にして相手部品８に接続させた実施例が示されている（図９および１１参照）。それぞれの応用例に用いられる弾性シールリング部材７および７′は、コネクター本体への塵埃の混入を防ぐ防塵作用と共に、配管にもたらされる振動を防止する防振材として機能する。このように第１の実施例にもとづく応用例として、本例と同様に構成されたコネクターを介し、実質的に本例と同様にして４例の細径配管の接続が完了し、その接続状態が確認されている。
【００３６】
本願に係る第２の発明の実施例は最終的に図１３に示されるような配管の接続状態を以て確認される。本例に用いられるコネクターは確認部材本体の構造が図１６の（ａ）に示されるように後端側確認爪３−３′の先端に、軸芯方向に傾斜してテーパー壁を有する鉤型のフック３−８が形成され、該フックに連なる長手方向軸芯に向かってほぼ中心部間に後端側確認爪スプール逃げ部３−６′が、さらにそれに連なるコネクター付き当て壁３−４′の間に、後端側スプール押さえ部３−９が形成されている。また、本例の内装部材本体の確認部材組み付け部２−１′には前記鉤型のフック３−８を契合するための凹部２−８が形成され、それ以外は前記第１の実施例で用いられたものと同様に構成されたコネクターにより、相手部品に対する配管の接続を試みた。図１４に示すように本例の確認部材本体は先端側確認爪の凸部３−７′が内装部材本体の穴部２−３′に、後端側確認部材本体のフック３−８がその凹部にそれぞれ契合されて配管接続前のコネクターの組み込みが完了する。
【００３７】
本例による配管の接続は第１実施例と基本的には同様であるが、図１５に示すようにコネクター後方より嵌挿された配管Ｐの後方スプール部Ｐ−２により、最初に先端側確認爪３−２′のテーパー壁３−５′が押し上げられて外径方向に開き、同時に該爪の凸部３−７′が内装部材の穴部２−３′から脱出する。次いで確認部材本体を前方にスライドさせ、スプール逃げ部３−６′のスペースにスプール部Ｐ−２が収納されると、確認爪を開く力が消滅して該凸部３−７′が軸芯方向に閉じ、内装部材本体の外壁２−７′を抱えるように挟持する。この際後端側確認爪３−３′も確認部材本体の前方へのスライドに伴い、内装部材本体の凹部からフック３−８が自身のテーパー壁の作用により抜けだし、前記先端側確認爪３−２′の後方で内装部材外壁２−７′に抱きつくように挟持する。ここで不適切な接合状態で後端側確認爪３−３′のスプール押さえ部３−９がスプール部Ｐ−２に当接すると、確認部材本体の前方へのスライドは不可能となり半嵌合の状態であることを、事前に認知させることとなる。
【００３８】
本願に係る第３の発明による実施例は、図１９に示されるように確認部材本体３″の後端側確認爪３−３″間が、配管外径部の形状に近い半円形の配管付き当て壁３−１０として形成され、図２０の（ａ）に示すように内装部材本体２″の確認部材付き当て壁２−５´が省略されている。本例のコネクターによる配管Ｐの接続は図１８に示すように完了して確認される。より具体的には後端側確認爪３−３″の半円形の配管付き当て壁３−１０が、後端側スプール部Ｐ−２の後方の配管外径部に当接することによって、先端側確認爪の凸部３−７″の内装部材外壁２−７″への抱え込み挟持と共に適切な配管接続を確認する。
【００３９】
本願に係る第４の発明に基づくコネクター本体１′は、図２２の（ａ）、（ｂ）、（ｃ）および（ｄ）に示されるように上記各実施例によるコネクター本体１に、内装部材本体２″が一体に結合された構造を有している。本例によるコネクター１′はコネクター本体と内装部材本体との組み付けが、事前に省略されるというメリットがあり、確認部材本体の組み付けや配管の接続においては、図２１に示すように前記第３の発明に基づく実施例と同様に完了することが確認された。
【００４０】
コネクター本体と内装部材本体とを一体化した上記発明の応用例として、図２５にはコネクター本体２″の円筒部前方に形成される爪壁部４′に、切り欠き部が形成されず、シールリング部材５を装填する溝部４−３′に連なる係合壁４−４もないコネクター本体２″が開示され、該コネクターを介して相手部品８に接続される配管として、図２４に示すように先端側スプール部Ｐ−１′が小径スプールのみの配管Ｐ″が開示され、図２３に示すような配管接続状態とその確認がなされている。
【００４１】
また、上記のさらなる応用例としてコネクター本体の円筒部前方に設ける爪壁４″に、図２６に示すように切り欠き部を設けることでシールリング部材の装填を容易にし、他は前記コネクターによる配管接続と実質的に同一手段による、相手部品への配管接続状態とその確認が図２３によって開示されている。
【００４２】
本願に係る第５の発明による実施例とその応用例が図２７〜図３５によって開示されている。本例におけるコネクター本体は従来より汎用されているクイックコネクターをベースとし、それに本願における第２の発明に用いられる確認部材本体を組み合わせることによって、コネクターを介しての配管の接続を簡素にかつ確実に確認し得たものである。具体的には図２８に示すようにコネクター本体１０の後方大径室外壁部１０−１に、先端側確認爪の凸部３−７′を挿入する穴部１０−２と、後端側確認爪のフックを契合する凹部１０−３が形成され、コネクター本体１０と確認部材本体３′とによる配管接続前のコネクターが完成する。本例における配管の接続と接続状態の確認は、前記第２の発明における方法と実質的に同一である。但し図３０（ａ）および（ｂ）に示すようにコネクター本体１０の構造が異なり、内装部材本体も存在しないところから用いられる配管Ｐも図３１に示すように構成されており、配管接続に際してはコネクター本体の先端竹の子状部分が相手部品に組み付けられた後、コネクターの後方から配管を挿入し、スプール部が本体爪部１０−５を外径方向に押上げ、その爪部先端を通過すると該爪部１０−５は弾性復帰し、スプール部後端部を押し込むように閉じて配管の接続状態を確保するよう構成されている。
【００４３】
ここで確認部材本体による接続状態の確認は、図２９に示すように配管挿入時にスプール部が先端側確認爪３−２′のテーパー壁３−５′にあたり、これに押し上げられて外径方向に開き、同時に該爪の凸部３−７′がコネクター本体の穴部１０−２から脱出する。次いで確認部材本体を前方にスライドさせ、スプール逃げ部３−６′のスペースにスプール部が収納されると、確認爪を開く力が消滅して該凸部３−７′がコネクター本体の大径室の外壁１０−４を抱えるように挟持する。この際、コネクター本体の爪部１０−５がスプール部による押上げから開放され、且つ弾性復帰して配管スプール部後端部を押し込むようにして閉じた状態においては、後端側確認爪３−３′も確認部材本体の前方へのスライドに伴い、コネクター本体の凹部１０−３からフック３−８が自身のテーパー壁の作用により抜けだし、前記先端側確認爪の後方でコネクター本体の大径室の外壁１０−４に、これを抱えるように挟持して配管の適正な接続状態が確認される。配管の接続が不適切でコネクター本体の爪部１０−５が正規に閉じていない場合、即ちスプール部によって外径方向に開いたままで、十分に弾性復帰しきれない状態においては、後端側確認爪３−３′のスプール押さえ部３−９が該爪部１０−５に妨げられ、確認部材本体の前方へのスライドは不可能となり、配管とコネクターとの接続が半嵌合の状態であることを事前に認知させることとなる。
【００４４】
図３３、３４は同実施例の応用例としての確認部材本体を示し、確認部材本体の押し壁部分にリリース用の爪が備えられており、該リリース用爪を配管接続後のコネクター内に押し込むことにより、コネクター本体の爪部１０−５を外径方向に開き、これに押えられていた配管スプール部の後方への通過を許容して、配管の接続を容易に解除する。図３５は本発明に係る確認部材の更に他の応用例であり、コネクター本体が従来より汎用されているものであり、実質的な機能は前記と同様に作用する。
【００４５】
【発明の効果】
上記各実施例からも明らかなように本発明による細径配管接続用コネクターは、後方内径部に雌ネジが形成され筒状体からなり、外周方向の一端にはフランジ部、それに連なる他端が相手部品に螺合して一体に組み付く雄ネジを有する円筒部からなり、該円筒部の雄ネジを除く部分が切欠かれ、その切欠き残部の舌状の弾性爪壁が内方に付勢され、先端爪先部分は半円弧状で、内周面には溝部と、それに連続して係合壁が設けられてなるコネクター本体と、後方に前記コネクター本体のフランジ部に当接する確認部材組み付け部、それに連なる外周方向他端が円筒部からなり、該円筒部の確認部材組み付け部近傍に、前記コネクター本体の雌ネジに螺合し、一体に係合されるための雄ネジが形成されてなる内装部材本体と、押し壁とコネクター突き当て壁とからなる確認部材本体の対向する両側において、該確認部材本体の反対側端部の軸芯方向に凸部を有する先端側確認爪、その対向位置により短尺の後端側確認爪が一体に設けられてなる確認部材本体とからなることを基本的構成要件とする。
【００４６】
このように簡略な構造であるにも拘らず該コネクター本体の相手部品への組付けは、特定の専用工具などを用いることもなく、通常汎用されているスパナを用いるのみの極めて簡略な操作で、強固な組み付けが完了する。しかもコネクターに求められる本来の機能である配管流路の気密を完全な状態で保持すると共に、併せてコネクター本体と相手部品との気密をも、ほぼ完全な状態で確保することが確認された。また、本発明において前記コネクター本体と組み合わせて用いられ、細径配管接続用コネクターを構成する確認部材本体の作用により、配管の完全な接続状態を作業者の熟練度等に依存することなく、誰でもが簡単に確認しうると共に、接続確認後の確認部材本体はコネクター本体にコンパクトに組み付き、周囲のスペースや他の装置類との接触に、必要以上に配慮するという懸念が未然に省略される。
【００４７】
本発明による上記確認部材本体は配管接続後もコネクターの構成部材としてとどまり、上記第１の発明〜第４の発明に基づく各実施例においては配管の抜け防止として効果的に機能することが確認されている。さらに本発明の確認部材本体は従来のクイックコネクターに組み合わせて用いることも可能であり、この際前記第５の発明における各実施例においても具体的効果が確認されているが、該確認部材本体は配管の接続状態を確認すると共に、コネクター本体の爪部の返り（リテーナ）を防止するために効果的に機能する。またその応用例においてリリーサー付確認部材本体が例示されているが、該確認部材本体を用いる事により接続後の配管の取り外しが容易となり、シールリング部材等が劣化して交換を要する場合などのメンテナンス作業を、効率的に実施できることも確認された。
【図面の簡単な説明】
【図１】 本発明の細径配管接続用コネクターの一実施例に係る細径配管接続状態を示す図で、（ａ）は縦断側面図、（ｂ）はその背面図である。
【図２】 同実施例おけるコネクターを相手部品への組み付けた後、配管を接続する前の状態を示す図で、（ａ）は縦断側面図、（ｂ）はその背面図である。
【図３】 同実施例で配管接続後、接続状態を確認する前の状態を示す図で、（ａ）は縦断側面図、（ｂ）はその背面図である。
【図４】 同実施例に用いる細径配管端末とそれに組み込まれたバックアップリングと、その応用例のスプール部外径調節部材を示し、（ａ）はその一部破断側面図、（ｂ）および（ｃ）はその応用例の配管端末半載図である。
【図５】 同実施例のコネクターに組み込まれる確認部材本体の単体を示し、（ａ）は正面図、（ｂ）はその平面図、（ｃ）はその側面図である。
【図６】 同実施例のコネクターに組み込まれる内装部材本体の単体を示し、（ａ）は背面図、（ｂ）はその平面図、（ｃ）はその縦断側面図である。
【図７】 同実施例のコネクター本体とそれに組み込まれるシールリング部材との断面図である。
【図８】 同実施例に用いられるコネクター本体の単体を示し、（ａ）は縦断側面図、（ｂ）はその正面図である。
【図９】 本発明に係る他の実施例の細径配管接続状態（図１に相当）を示す図で、（ａ）は縦断側面図、（ｂ）はその背面図である。
【図１０】 同実施例に組み込まれる細径配管端末の一部破断側面図（図４に相当）である。
【図１１】 本発明に係る更に他の実施例の細径配管接続状態(図1に相当)を示す図で、（ａ）は縦断側面図、（ｂ）はその背面図である。
【図１２】 同実施例に組み込まれる細径配管の一部破断側面図（図４に相当）である。
【図１３】 本願に係る他の発明における一実施例のコネクターによる細径配管接続状態（図１に相当）を示す図で、（ａ）は縦断側面図、（ｂ）はその背面図である。
【図１４】 同実施例におけるコネクターを相手部品に組み付けた後、配管を接続する前の状態（図２に相当）を示す図で、（ａ）は縦断側面図、（ｂ）はその背面図である。
【図１５】 同実施例におけるコネクターに細径配管接続後、接続状態を確認する前の状態（図３に相当）を示す図で、（ａ）は縦断側面図、（ｂ）はその背面図である。
【図１６】 同実施例のコネクターに組み込まれる確認部材本体の単体（図５に相当）を示し、（ａ）は正面図、（ｂ）はその平面図、（ｃ）はその側面図である。
【図１７】 同実施例のコネクターに組み込まれる内装部材本体の単体（図６に相当）を示し、（ａ）は背面図、（ｂ）はその平面図、（ｃ）はその縦断側面図である。
【図１８】 本願に係る更に他の発明における一実施例のコネクターによる細径配管接続状態（図１に相当）を示し、（ａ）は縦断側面図、（ｂ）はその背面図である。
【図１９】 同実施例に組み込まれる確認部材本体の単体（図５に相当）を示し、（ａ）は正面図、（ｂ）はその平面図、（ｃ）はその側面図である。
【図２０】 同実施例に組み込まれる内装部材本体の単体（図６に相当）を示し、（ａ）は背面図、（ｂ）はその平面図、（ｃ）はその縦断側面図である。
【図２１】 本願に係る更に他の発明における一実施例のコネクターによる細径配管接続状態（図１に相当）を示し、（ａ）は縦断側面図、（ｂ）はその背面図である。
【図２２】 同実施例におけるコネクター本体の単体を示す図で、（ａ）は背面図、（ｂ）はその縦断側面図、（ｃ）はその平面図、（ｄ）はその正面図である。
【図２３】 同実施例の応用例における細径配管接続状態（図１に相当）を示し、（ａ）は縦断側面図、（ｂ）はその背面図である。
【図２４】 同実施例に組み込まれる細径配管端末（図４に相当）を示す一部破断側面図である。
【図２５】 同実施例の更に他の応用例に組み込まれるコネクター本体の単体（図２２に相当）を示し、（ａ）は背面図、（ｂ）はその縦断側面図、（ｃ）はその平面図、（ｄ）はその正面図である。
【図２６】 同実施例の更に他の応用例に組み込まれるコネクター本体の単体（図２２に相当）を示し、（ａ）は背面図、（ｂ）はその縦断側面図、（ｃ）はその平面図、（ｄ）はその正面図である。
【図２７】 本願に係る更に他の発明における一実施例による細径配管接続状態（図１に相当）を示し、（ａ）は長手方向半載縦断側面図、（ｂ）はその背面図である。
【図２８】 同実施例における細径配管接続前の状態（図２に相当）を示し、（ａ）は長手方向半載縦断側面図、（ｂ）その背面図である。
【図２９】 同実施例において細径配管接続後、接続状態を確認する前の状態（図３に相当）を示し、（ａ）は長手方向半載縦断側面図、（ｂ）は背面図である。
【図３０】 同実施例に組み込まれるコネクター本体の単体（図８に相当）を示し、（ａ）は長手方向半載縦断側面図、（ｂ）はその正面図である。
【図３１】 同実施例に組み込まれる細径配管端末（図４に相当）を示す一部破断側面図である。
【図３２】 同実施例に組み込まれる確認部材本体の単体（図５に相当）を示し、（ａ）は正面図、（ｂ）はその平面図、（ｃ）はその側面図である。
【図３３】 同実施例の応用例において組み込まれる確認部材本体の単体（図３２に相当）を示し、（ａ）は正面図、（ｂ）はその平面図、（ｃ）はその側面図である。
【図３４】 同実施例の他の応用例においてに組み込まれる確認部材本体の単体（図３２に相当）を示し、（ａ）は正面図、（ｂ）はその平面図、（ｃ）はその側面図である。
【図３５】 本発明に係る確認部材本体を用いた更に他の実施例の細径配管接続状態（図１に相当）を示し、（ａ）は長手方向半載縦断側面図、（ｂ）はその背面図である。
【図３６】 従来のコネクターを用いた細径配管接続状態（図１に相当）を示す長手方向半載縦断側面図である。
【図３７】 従来のクイックコネクターと確認部材本体とを示し、（ａ）は細径配管接続状態（図１に相当）を示す長手方向半載縦断側面図、（ｂ）はそれに組み込まれる確認部材本体を含む配管挿入時の背面説明図、（ｃ）は上記確認部材単体の平面図である。
【符号の説明】
１、１′、１″、１″′ コネクター本体
１−１、１−１′、１−１″、１−１″′ 前方円筒部
１−２、１−２′、１−２″、１−２″′ フランジ部
１−３、１−３′、１−３″、１−３″′ 雄ネジ
１−４、１−４′、１−４″、１−４″′ 内径部
１−５ 雌ネジ
２、２′、２″、２″′ 内装部材本体
２−１、２−１′、２−１″、２−１″′ 確認部材組み付け部
２−２、２−２′、２−２″、２−２″′ 円筒部
２−３、２−３′、２−３″、２−３″′ 穴部
２−４、２−４′、２−４″ 雄ネジ
２−５、２−５′ 確認部材突き当て壁
２−６、２−６′、２−６″、２−６″′ 内径部
２−７ 外壁部
２−８ 凹部
３、３′、３″、３″′ 確認部材本体
３−１、３−１′、３−１″、３−１″′ 押し壁
３−２、３−２′、３−２″、３−２″′ 先端側確認爪
３−３、３−３′、３−３″、３−３″′ 後端側確認爪
３−４、３−４′ コネクター突き当て壁
３−４″ コネクター外壁突き当て壁
３−５、３−５′ テーパー壁
３−６、３−６′、３−６″、３−６″′ スプール逃げ部
３−７ 凸部
３−８ フック
３−９ スプール押え部
３−１０ 配管突き当て壁
３−１１、３−１１′ リリース用爪
４、４′、４″、４″′ 弾性爪壁（爪壁）
４−１、４−１′、４−１″、４−１″′ 切欠き部
４−２、４−２′、４−２″、４−２″′ 爪先
４−３、４−３′、４−３″、４−３″′ 溝部
４−４、４−４′ 係合壁
４−５、４−５′ 内壁部
５ シールリング
６ バックアップリング
６−１、６−２ スプール部外径調節部材
７、７′ 弾性シールリング部材
８ 相手部品
８−１ 雌ネジ
８−２ 流路
８−３ 連結筒壁
８−４ 取付穴
１０ コネクター本体
１０−１ 大径室
１０−２ 穴部
１０−３ 凹部
１０−４ 外壁部
１０−５ 爪部
Ｐ、Ｐ′、Ｐ″、Ｐ″′ 細径配管
Ｐ−１、Ｐ−１′、Ｐ−１″ 先端スプール部
Ｐ−２、Ｐ−２′、Ｐ−２″ 後端スプール部
Ｐ−３、Ｐ−４ スプール部
１０１ コネクター本体
１０１′ 切欠き窓溝部
１０１″ 段発壁
１０２ 連結筒壁
１０３ 大径室
１０３′ 小径室
１０４ 流路
１０５ 爪壁
１０６ シールリング部材
１０７ ブッシュ部材
１０８ 筒環部材
１０９ 確認部材本体
１０９′ 掛合壁
１０９″ 掛支壁
１１０ ロック壁
１１１ テーパー面
２０１ コネクター本体
２０１−１ フランジ部
２０１−２ 円筒部
２０１−４ 内径ブ
２０２ 連結筒壁
２０３ 流路
２０４ 弾性爪壁
２０４−１ 爪先
２０４−２ 溝部
２０５ 切欠き部
２０６−１ 第１スプール部
２０６−２ 第２スプール部
２０７ シールリング部材
２０８ 雄ネジ
２０９ ノッジ[0001]
BACKGROUND OF THE INVENTION
The present invention generally relates to a metal tube or resin tube (hereinafter simply referred to as a relatively small diameter) having a tube diameter of about 20 mm or less, which is provided as a supply path for oil supply, air supply, etc. in automobiles or various machines and devices. In particular, when connecting pipes and mating parts, the piping flow path, connector body and mating parts can be kept airtight at the same time with a simple operation. The present invention relates to a connector for connecting a small-diameter pipe capable of confirming a connection state and maintaining the state.
[0002]
[Prior art]
This type of small-diameter pipe connection connector is interposed between the mating part and the pipe, and functions to ensure airtightness and proper connection of the flow path. . Recently, there has been proposed a connector for connecting a small-diameter pipe that can achieve the intended purpose with a compact structure and simple operation because it is required to reduce costs and enhance functions.
[0003]
For example, in a connector for connecting a small-diameter pipe shown in FIG. 36 (hereinafter simply referred to as “connector”), a hole for fitting the pipe into the shaft core is penetrated, the flange part 201-1 at one end, and the other end connected to it. Is a connector main body 201 comprising a cylindrical portion 201-2, and in the vicinity of the flange portion 201-1 of the cylindrical portion 201-2, it is screwed into a female screw of the counterpart component when assembled to the counterpart component. A male screw 208 is formed. A notch 205 divided into four equal parts is formed in the outer peripheral direction of the cylindrical part 201-2 excluding the part where the male screw 208 is formed, and the notch remaining part of the notch 205 is a tongue-like elastic claw wall. 204 is applied inward. The tip claw tip 204-1 of the elastic claw wall 204 is formed in a semicircular arc shape, and a groove portion 204-2 is provided on the inner peripheral surface thereof. The groove portion 204-2 accommodates the seal ring member 207 before connecting the pipe. Used as a space to play. Further, the flange portion 201-1 is preferably formed in a hexagonal nut shape so as to engage with a spanner when incorporated into a mating part, and a nodge extending over substantially the entire outer periphery of the nut-like flange portion 201-1. (Incision) 209 is provided, and when the connector body 201 is screwed into the mating part and assembled, the nodule 209 functions as a substitute for a spring washer by its resilience to prevent loosening.
[0004]
Although the above connector is compact in structure compared to conventionally known connectors, the assembly of the connector main body and the mating part is strong, and the airtightness of the connector main body and the mating part is ensured together with the airtightness of the pipe flow path. Has been confirmed to be secured at the same time. However, the above connector does not include a so-called confirmation member for confirming the connection state when the connection is completed, either by visual inspection when the connection is completed, or by applying a pulling force to the piping, or both. However, this method depends on the skill level of the individual worker, and remains uneasy about its reliability.
[0005]
In the connector shown in FIG. 37, a seal ring member 106 and a bushing member 107 are provided in the small diameter chamber portion 103 ′ of the connector main body 101 formed by penetrating the small diameter chamber 103 ′ and the large diameter chamber 103 inside the shaft core. And a notch window groove portion 101 ′ drilled in a facing portion formed by the peripheral wall of the large-diameter chamber 103, and a nail wall 105 that is bent in the middle and biased forward inward. A tongue-shaped bullet wall 101 ″ projecting forward from the bent portion is integrally formed, and a cylindrical ring member 108 is mounted on the outer peripheral side of the peripheral wall of the small-diameter chamber 103 ′ so as to be opposed to each other. A confirmation member having a sandwiched shape in which a hooking wall 109 'is provided on both sides and a hooking wall 109''is integrally provided on the inner side thereof. Body 109, the outer engaging wall 109 ′ side is attached to the elastic wall 101 ″ of the connector main body 101, and the supporting wall 109 ″ part is attached to the opposite side surface portion formed by the connector main body 101. In this state, there has been proposed a connector that can be engaged with the inside of the bent portion of the claw wall portion 105.
[0006]
[Problems to be solved by the invention]
According to the connector, the confirmation member Body With this function, it is possible to reliably grasp the connection state of the pipe, but the confirmation member after the connection is completed overhangs in the outer diameter direction of the connector body, which increases the occupied space around the connector. In addition, there are concerns that unexpected damage may be caused by contact with other devices, parts, etc., and there are still problems to be improved.
[0007]
The object of the present invention is to solve the problems remaining in the prior art. Specifically, while maintaining a more compact structure, the connection between the mating part and the small-diameter pipe is completed with a safe and simple operation. It is possible to confirm that the connection state is properly maintained, and for small-diameter pipe connections that can ensure sufficient airtightness between the pipe flow path, the pipe connection connector, and the mating parts. To provide a connector.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the first embodiment according to the present invention has a hole through which a small-diameter pipe is inserted into the shaft core, and a male screw of the interior member body is provided behind the inner diameter portion connected to the hole. A male thread is formed for female threading to be screwed, while a flange part that abuts the mating part corresponding to one end in the outer circumferential direction, and the other end that is threaded into the female thread of the mating part. A cylindrical portion having a screw, wherein at least two notches are provided equally in the outer circumferential direction of the cylindrical portion excluding the male screw, and the notch remaining portions of the notches are respectively tongue-shaped elastic nail walls The tip portion of the elastic claw wall is formed in a semicircular arc shape, and a groove portion in which a seal ring member is internally provided on the inner peripheral surface thereof, and a pipe spool portion continuous with the groove portion. The connector body is provided with an engagement wall and a small-diameter pipe on the shaft core A confirmation member assembling part that is provided with a hole to be inserted and is in contact with the flange part of the connector main body at the rear, and the other end in the outer peripheral direction connected to the cylindrical part is a cylindrical part. An interior member main body for holding a confirmation member main body formed with a male screw to be engaged with and integrally engaged with a female screw provided behind the inner diameter portion of the main body, and confirmation of the interior member main body In the component assembly part Provided A confirmation member main body comprising a pushing wall for pushing in from a side surface and a connector abutting wall, and of the confirmation claws formed integrally on opposite sides of the confirmation member main body, the opposite end of the confirmation member main body A front-end side confirmation claw having a convex portion in the axial direction of the portion, and a confirmation member body in which a shorter rear-end side confirmation claw is integrally provided at a position opposite to the front-end side confirmation claw It is in the connector for connecting small diameter pipes as above.
[0009]
The second embodiment according to the present invention is the connector for connecting a small-diameter pipe according to the first embodiment, so that the flange portion of the connector main body can be firmly assembled to a mating part with a general-purpose tool such as a spanner. A connector for connecting a small diameter pipe characterized in that it is formed in a nut shape.
[0010]
According to a third embodiment of the present invention, in the connector for connecting a small-diameter pipe according to the first embodiment, the interior member Body The confirmation member assembly part has a confirmation member abutment wall, and Above Confirmation member Body A hole for receiving the convex portion of the front end side confirmation claw, Above In the connector for connecting a small-diameter pipe, the outer wall sandwiched by the front end side claw is provided in the same shape as the flange portion of the connector main body.
[0011]
According to a fourth embodiment of the present invention, in the connector for connecting a small-diameter pipe according to the first embodiment, the confirmation member Body A tapered wall inclined toward the axial center is formed on the wall surface in the direction of the confirmation member main body from the convex portion of the confirmation claw on the front end side of the pipe, and the spool escapement on the rear end side of the small-diameter pipe is formed between the tapered wall and the confirmation member main body A connector for connecting a small-diameter pipe is characterized in that a portion is provided.
[0012]
According to a fifth embodiment of the present invention, a hole for inserting a small-diameter pipe is inserted through the shaft core, and a female screw for screwing into a male screw of the interior member main body is provided behind the inner diameter portion connected to the hole. On the other hand, it consists of a flange portion that abuts on a mating part corresponding to one end in the outer peripheral direction, and a cylindrical part that has a male thread for the other end connected to the female thread of the mating part to be integrally assembled. The cylindrical portion excluding the male screw is provided with at least two cutout portions equally in the outer circumferential direction, and the cutout remaining portions of the cutout portions are respectively attached to the inside by forming tongue-like elastic claw walls. The tip portion of the elastic claw wall is formed in a semicircular arc shape, and a groove portion in which a seal ring member is internally provided on the inner peripheral surface of the elastic claw wall, and an engagement wall for the piping spool portion is provided continuously to the groove portion. And a hole for inserting a small-diameter pipe into the shaft core. A confirmation member assembling portion that contacts the flange portion of the connector main body, and the other end in the outer circumferential direction connected thereto is a cylindrical portion, and a female provided in the vicinity of the confirmation member assembling portion of the cylindrical portion behind the inner diameter portion of the connector main body. An interior member main body for holding a confirmation member body formed with a male screw that is screwed into and integrally engaged with the screw, and a confirmation member assembly portion of the interior member body Provided Push wall to push in from the side and connector abutment wall And confirmation member butting wall A confirmation member main body comprising: a confirmation claw integrally formed on opposite sides of the confirmation member main body, the front end side confirmation having a convex portion in the axial direction of the opposite end of the confirmation member main body A confirmation member main body in which a rear end side confirmation claw slightly shorter than the front end side confirmation member having a hook-shaped hook formed at the tip is integrally provided at a position opposed to the front end side confirmation claw. This is a connector for connecting small-diameter pipes, which is a structural feature.
[0013]
In a sixth embodiment according to the present invention, in the connector for connecting a small-diameter pipe according to the fifth embodiment, the flange portion of the connector main body is easily assembled firmly to a mating part by a general-purpose tool such as a spanner. A connector for connecting a small diameter pipe characterized in that it is formed in a nut shape.
[0014]
According to a seventh embodiment of the present invention, in the connector for connecting a small-diameter pipe according to the fifth embodiment, the interior member Body The confirmation member assembly part of the Wall And further Above Confirmation member Body A hole for accommodating the convex portion of the front end side confirmation claw, and a concave portion for accommodating the hook-shaped hook at the front end of the rear end side confirmation claw. Above With the convex part of the tip side confirmation claw Above The connector for small diameter pipe connection is characterized in that the outer wall held by the hook-shaped hook at the tip of the rear end side confirmation claw is provided in the same shape as the flange portion of the connector main body.
[0015]
According to an eighth embodiment of the present invention, in the connector for connecting a small-diameter pipe according to the fifth embodiment, the confirmation member Body From the convex part of the nail The A taper wall inclined toward the axis is formed on the wall surface in the direction of the confirmation member body, and a rear end side spool portion relief portion of the small-diameter pipe is provided between the taper wall and the confirmation member body. It is a connector for connecting small-diameter pipes, which is a structural feature.
[0016]
According to a ninth embodiment of the present invention, in the small-diameter pipe connection connector according to the fifth embodiment, a spool portion is provided in the vicinity of the confirmation member main body of the rear end side confirmation claw attached integrally to the confirmation member main body. A hook-shaped hook is formed at the tip of the holding portion opposite to the holding portion, a tip wall of the hook is provided with a tapered wall inclined in the axial direction, and between the hook and the spool holding portion, A connector for connecting a small-diameter pipe characterized in that a rear end side confirmation claw spool relief portion is provided.
[0017]
According to a tenth embodiment of the present invention, in the connector for small-diameter pipe connection according to the previous embodiment 5, a gap between two rear end side confirmation claws provided integrally with the confirmation member main body is formed in a semicircle, A small diameter pipe connection connector is characterized in that a pipe abutting wall having substantially the same shape as the outer periphery of the small diameter pipe is formed on the inner side, and a connector outer wall abutting wall is formed on the push wall part.
[0018]
According to an eleventh embodiment of the present invention, in the connector for connecting a small-diameter pipe according to the fifth embodiment, the confirmation member Body Interior members that hold Body From the confirmation member Wall In the connector for connecting a small-diameter pipe, which is characterized in that it is removed.
[0019]
According to a twelfth embodiment of the present invention, there is provided a flange portion in which a hole for inserting a small-diameter pipe is inserted in the shaft core, abutting against a mating part corresponding to one end in the outer circumferential direction, and a confirmation member behind the flange portion. Body A confirmation member assembling part for holding the inner part is integrally provided, while the other end connected to the flange part is screwed into a female screw of a mating part and is formed of a cylindrical part having a male screw for assembling integrally. The cylindrical portion excluding the male screw is provided with at least two cutout portions equally in the outer circumferential direction, and the cutout remaining portions of the cutout portions are respectively attached to the inside by forming tongue-like elastic claw walls. The connector main body is formed such that the tip toe portion of the elastic claw wall is formed in a semicircular arc shape, and the inner peripheral surface thereof is provided with a groove portion that internally encloses the seal ring member and a contact wall with the spool portion that is connected to the groove portion. And a confirmation member assembly portion having a hole portion that is provided integrally with the flange portion of the connector main body and that accommodates the convex portion of the confirmation member tip side confirmation claw, and an outer peripheral wall sandwiched by the convex portion of the tip side confirmation claw And the confirmation member set To put part Provided Push wall for pushing in from the side and connector outer wall butting wall And confirmation member butting wall In the confirmation member main body comprising: a confirmation claw integrally formed on opposite sides of the confirmation member main body, a front end side confirmation claw having a convex portion in the axial direction of the opposite end of the confirmation member main body, A connector for connecting a small-diameter pipe characterized in that it comprises a confirmation member main body in which a shorter rear end side confirmation claw is integrally provided at a position opposed to the front end side confirmation claw.
[0020]
According to a thirteenth embodiment of the present invention, in the connector for connecting a small-diameter pipe according to the twelfth embodiment, an outer periphery of a flange portion of the connector main body and a confirmation member assembly portion provided integrally behind the flange portion. The thin pipe connection connector is characterized in that the surface is formed in a nut shape so that the surface can be firmly assembled to a mating part with a general-purpose tool such as a spanner.
[0021]
According to a fourteenth embodiment of the present invention, in the connector for connecting a small-diameter pipe according to the twelfth embodiment, a gap between two rear end side confirmation claws provided integrally with the confirmation member main body is formed in a semicircular shape. Further, the connector and the small-diameter pipe connecting connector are characterized in that a pipe abutting wall having substantially the same shape as the outer periphery of the small-diameter pipe is formed on the inner side, and a connector outer wall abutting wall is formed on the pushing wall part.
[0022]
According to a fifteenth embodiment of the present invention, in the connector for small-diameter pipe connection according to the twelfth embodiment, the confirmation member Body From the confirmation member assembly that holds the Wall There is a connector for connecting a small-diameter pipe characterized in that it is removed.
[0023]
According to a sixteenth embodiment of the present invention, in the connector for connecting a small-diameter pipe according to the twelfth embodiment, the connector body has a hole through which the small-diameter pipe is inserted into the shaft core, and the outer circumferential direction A flange part that contacts the mating part corresponding to one end of the flange, and a confirmation member behind the flange part Body A confirmation member assembling part for holding the inner part is integrally provided, while the other end connected to the flange part is screwed into a female screw of a mating part and is formed of a cylindrical part having a male screw for assembling integrally. The cylindrical portion excluding the male screw has a tapered shape in which a substantially half portion is tapered toward the tip, and the remaining portion is formed in a cylindrical shape, and is formed on the inner peripheral surface of the toe portion at the tip of the nail wall. The connector for connecting a small-diameter pipe is characterized in that a semicircular arc-shaped groove portion is provided to house the sealing member.
[0024]
According to a seventeenth embodiment of the present invention, in the connector for connecting a small-diameter pipe according to the twelfth embodiment, the connector body is provided with a hole through which the small-diameter pipe is inserted into the shaft core, and the outer circumferential direction A flange part that contacts the mating part corresponding to one end of the flange, and a confirmation member behind the flange part Body A confirmation member assembling part for holding the inner part is integrally provided, while the other end connected to the flange part is screwed into a female screw of a mating part and is formed of a cylindrical part having a male screw for assembling integrally. The cylindrical portion excluding the male screw is provided with at least two cutout portions equally in the outer circumferential direction, and the cutout portions of the cutout portions each form a tongue-like elastic claw wall. Inside For connecting a small-diameter pipe characterized in that a semicircular arc-shaped groove portion is formed on the inner peripheral surface of the tip claw tip portion of the elastic claw wall to house the seal ring member. On the connector.
[0025]
An eighteenth embodiment according to the present invention is the small-diameter pipe connection connector according to any one of the first to seventeenth embodiments, wherein the small-diameter pipe is attached to a mating part via the thin-diameter pipe connection connector. A plurality of spool portions are formed at predetermined intervals on the terminal of the terminal, and a sealing member, a backup ring, a spool portion outer diameter adjusting member and / or an elastic sealing member are held by the spool portion and are pressed against the connecting cylindrical wall of the mating part. In addition to ensuring airtightness between the flow path of the mating part and the small-diameter pipe terminal, the fine-diameter pipe connection is characterized in that it adjusts the outer diameter of the spool portion or prevents dust from entering the connector system. For connectors.
[0026]
According to a nineteenth embodiment of the present invention, in the small diameter pipe connection connector according to any one of the fifth to eighteenth embodiments, a release claw is provided on the confirmation member main body. It is a connector for connecting small diameter pipes.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. However, the present invention is not restricted thereby, and can be freely modified within the scope of the gist of the present invention.
FIG. 1 shows a small-diameter pipe connection state according to an embodiment of the small-diameter pipe connection connector of the present invention. Figure (A) is a longitudinal side view, (b) is a rear view thereof, and FIG. 2 shows a state before connection of a small-diameter pipe in the same embodiment. Figure (A) is a longitudinal side view, (b) is a rear view thereof, FIG. 3 is an explanatory view showing a state before the connection state is confirmed after pipe connection in the embodiment, and (a) is a longitudinal side view thereof. FIG. 4B is a rear view thereof, and FIG. 4 is an explanatory view of a small-diameter pipe terminal used in the embodiment and its application example, a backup ring incorporated in the pipe, and a spool portion outer diameter adjusting member. ) Is a partially broken side view of the small-diameter piping terminal and the backup ring incorporated in the embodiment, and (b) is a partial half-mounting side surface of the thin-diameter piping terminal and the spool portion outer diameter adjusting member of the application example. FIG. 5 (c) is a partially half-mounted side view of a small-diameter pipe and a spool portion outer diameter adjusting member of another application example, and FIG. Figure (A) is a front view thereof, (b) is a plan view thereof, (c) is a side view thereof, FIG. 6 is a single body of the interior member body of the same embodiment, (a) is a rear view thereof, ( b) is a plan view thereof, (c) is a longitudinal side view thereof, FIG. 7 is a longitudinal side view showing a connector main body and a seal ring member incorporated therein, and FIG. 8 is a connector main body used in the same embodiment. Figure of (A) is a longitudinal side view thereof, (b) is a front view thereof, and FIG. 9 shows a thin pipe connection state (corresponding to FIG. 1) of an application example of the same embodiment. Figure (A) is a longitudinal side view thereof, (b) is a rear view thereof, FIG. 10 is a partially broken side view (corresponding to FIG. 4) of a small-diameter pipe incorporated in the application example, and FIG. Shows the connection state of thin pipes (corresponding to Fig. 1) of another application example Figure (A) is a longitudinal side view thereof, (b) is a rear view thereof, FIG. 12 is a partially broken side view of a small-diameter pipe incorporated in the application example (corresponding to FIG. 4), and FIG. Shows an example of small-diameter pipe connection (corresponding to Fig. 1) Figure (A) is a longitudinal side view thereof, (b) is a rear view thereof, and FIG. 14 is a state before connection of a small-diameter pipe in the same embodiment (corresponding to FIG. 2). Figure (A) is a longitudinal side view thereof, (b) a rear view thereof, and FIG. 15 is a state before the connection state is confirmed after connection of the small-diameter pipe of the same embodiment (corresponding to FIG. 3). Figure (A) is a longitudinal side view, (b) is a rear view, and FIG. 16 shows a single body (corresponding to FIG. 5) of a confirmation member main body incorporated in the embodiment. Figure (A) is a front view thereof, (b) is a plan view thereof, (c) is a side view thereof, and FIG. 17 is a single body (corresponding to FIG. 6) of an interior member body incorporated in the embodiment. Figure (A) is a rear view thereof, (b) is a plan view thereof, (c) is a longitudinal side view thereof, and FIG. 18 is a small-diameter pipe connection state according to still another embodiment of the present invention (corresponding to FIG. 1). Show Figure (A) a longitudinal side view thereof, (b) a rear view thereof, FIG. 19 shows a single body (corresponding to FIG. 5) incorporated in the embodiment, (a) is a front view thereof, ( b) is a plan view thereof, (c) is a side view thereof, and FIG. 20 is a single interior member body (corresponding to FIG. 6) incorporated in the embodiment. Figure (A) is a rear view thereof, (b) is a plan view thereof, (c) is a longitudinal side view thereof, and FIG. 21 is a small-diameter pipe connection state according to another embodiment of the present invention ( Equivalent to Fig. 1) Figure (A) is a longitudinal side view thereof, (b) is a rear view thereof, FIG. 22 is a four-view drawing showing a single body of the connector body in the embodiment, (a) is a rear view thereof, and (b). Is a longitudinal side view, (c) is a plan view thereof, (d) is a front view thereof, and FIG. 23 is a small diameter pipe connection state (corresponding to FIG. 1) of still another embodiment of the present invention. Figure (A) is a longitudinal side view thereof, (b) is a rear view thereof, FIG. 24 is a partially broken side view of a small-diameter pipe incorporated in the same embodiment (corresponding to FIG. 4), and FIG. 25 is the same embodiment. Shows a single connector body (equivalent to Fig. 22) Figure (A) is a rear view thereof, (b) is a longitudinal side view thereof, (c) is a plan view thereof, (d) is a front view thereof, and FIG. 26 is a still further embodiment of the present invention. Shown is a single connector body (equivalent to Fig. 22). Figure (A) is a rear view thereof, (b) is a longitudinal side view thereof, (c) is a plan view thereof, (d) is a front view thereof, and FIG. 27 is a conventional quick connector, Confirmation member according to the present invention Body Shows the connection state of thin pipes (corresponding to FIG. 1) Figure (A) is a longitudinal sectional side view in the longitudinal direction, (b) is a rear view thereof, and FIG. 28 shows a state before connection of a small-diameter pipe in the same embodiment (corresponding to FIG. 2). Figure (A) is a longitudinal sectional side view in the longitudinal direction, (b) is a rear view thereof, and FIG. 29 is a state before the connection state is confirmed after connecting the small-diameter pipe in the embodiment (corresponding to FIG. 3). Show Figure Fig. 30 (a) is a longitudinal side view of the half-mounted longitudinal direction, Fig. 30 (b) is a rear view thereof, and Fig. 30 is a single unit of a connector body incorporated in the embodiment. Figure (B) is a front view thereof, FIG. 31 is a partially broken side view (corresponding to FIG. 4) of a small-diameter pipe incorporated in the embodiment, and FIG. Indicates a single body (corresponding to FIG. 5) of the confirmation member main body incorporated in the embodiment. Figure (A) is a front view thereof, (b) is a plan view thereof, (c) is a side view thereof, and FIG. 33 shows a single body (corresponding to FIG. 5) of a confirmation member main body in still another embodiment. Figure (A) is a front view thereof, (b) is a plan view thereof, (c) is a side view thereof, and FIG. 34 is a single body (corresponding to FIG. 5) of a confirmation member main body in an application example of the embodiment. Figure (A) is a front view thereof, (b) is a plan view thereof, (c) is a side view thereof, and FIG. 35 shows a confirmation member according to the present invention in still another connector which has been widely used conventionally. Body Shows the connection state of thin pipes (corresponding to FIG. 1) Figure (A) is a longitudinal sectional side view of the longitudinal direction, and (b) is a cross-sectional view taken along the line bb of (a).
[0028]
As shown in FIGS. 1 to 3 and FIGS. 7 to 8, the small-diameter pipe connection connector (hereinafter simply referred to as “connector”) used in the first embodiment of the present invention has a small-diameter pipe on the shaft core. A hole to be inserted is provided, and a female screw 1-5 is formed on the rear side of the inner diameter portion 1-4 that is continuous with the hole. A cylinder having a flange portion 1-2 that comes into contact with a mating component 8 corresponding to one end thereof, and a male screw 1-3 that is joined to the female screw 8-1 of the mating component 8 at the other end. At least two or more cutout parts 4-1 are provided in the outer circumferential direction of the cylindrical part 1-1 excluding the male screw 1-3, and the cutout part 4-1 is cut. The notch is urged inwardly by forming tongue-like elastic claw walls 4 respectively, The tip portion 4-2 is formed in a semicircular arc shape, and a substantially U-shaped groove portion 4-3 that houses the O-ring shaped seal ring member 5 is formed on the inner peripheral surface thereof, and is continuous with the groove portion 4-3. Then, a connector main body 2 having an engagement wall 4-4 with the pipe spool portion P-1 and a hole for inserting a small-diameter pipe into the shaft core are penetrated, and the flange of the connector main body 1 is provided in the rear. A confirmation member assembling portion 2-1 that abuts against the portion 1-2, and the other end in the outer circumferential direction connected thereto is a cylindrical portion 2-2, and the connector main body is located near the confirmation member assembling portion 2-1 of the cylindrical portion 2-2. An interior for holding a confirmation member main body 3 formed with a male screw 2-4 that is screwed into a female screw 1-5 provided at the rear of the inner diameter portion 1-4 of FIG. The member main body 2 and the confirmation member assembling part 2-1 of the interior member main body 2 were pushed from the side surface. The confirmation member main body 3 including the push wall 3-1 and the connector abutting wall 3-4, and the confirmation member main body of the confirmation claws integrally formed on opposite sides of the confirmation member main body 3 3 at the opposite end to the front end side confirmation claw 3-2 having a convex portion 3-7 in the axial direction, and a shorter rear end side confirmation claw 3-3 at a position opposite to the front end side confirmation claw 3-2. And a confirmation member main body 3 formed integrally.
[0029]
As shown in FIG. 4A, the pipe P connected to the mating part 8 through the connector used in this example has a large and small two-stage annular bulging portion (hereinafter simply referred to as “spool portion”). The front-end side spool portion P-1 having the above-mentioned and the confirmation member at the rear thereof Body A rear end side spool portion P-2 is formed in contact with the rear end side spool portion P-2. As shown in FIGS. 4A, 4B, and 4C, a backup ring 6 is wound around the small diameter spool portion in front of the distal end side spool portion P-1 in this example, and FIG. ), When the connection of the pipe P is completed, the pipe P and the mating part flow path 8-2 are hermetically sealed by being pressed against the connecting cylindrical wall 8-3 of the mating part 8 together with the seal ring member, and the connector body 1 And the airtightness of the counterpart part 8 are ensured together. 4B and 4C show spool part outer diameter adjusting members 6-1 and 6-2 wound around the rear end side spool part P-2 as an application example of this example. This is the confirmation member of this example Body 3 is used because it is desirable that the outer diameter of the rear end side spool portion P-2 is slightly larger than that of the front end side spool portion P-2. In addition, each functionally similar member including the seal ring member 5, the backup ring 6, and the spool portion outer diameter adjusting members 6-1 and 6-2 used in each embodiment of the present invention is made of rubber or resin. It is preferable to be made of an elastic material.
[0030]
A more specific description will be given of the method for connecting a small-diameter pipe using the connector of the present example having the above-described configuration. The connector body 1 loaded in the connector body 1 is inserted into the mounting hole 8-4 of the mating part 8, and the male screw formed in the cylindrical portion 1-1 of the connector body 1 is formed near the entrance of the mounting hole 8-4. Assembling the mating component 8 and the connector body 1 is completed by screwing into the female screw 8-1. At this time, since the flange portion 1-2 of the connector main body 1 is formed in a hexagonal nut shape, a strong assembly is completed with a predetermined tool such as a spanner by a very simple and easy operation.
[0031]
After the assembly into the mating part 5 is completed, the cylindrical portion 2-2 of the interior member main body 2 shown in FIG. 6 is inserted from the rear of the flange portion 1-2 of the connector main body 1, and the inner diameter portion 1- 4, the male screw 2-4 formed in the vicinity of the confirmation member assembling part 2-1 of the interior member main body 2 is screwed into the female screw formed at the rear of the connector body 1 and the interior member. Body Assembly with 2 is completed. As shown in FIG. 6, the interior member main body 2 has a hole portion 2-3 for accommodating the convex portion 3-7 of the front end side confirmation claw 3-2 formed integrally with the confirmation member main body 3 to be described later, The outer wall 2-7 held so as to be held in the convex 3-7, and the confirmation member abutment Wall 2-5 are formed.
[0032]
After the assembly of the interior member body 2 to the connector body 1 is completed, the connector of this example is completed by incorporating the confirmation member body 3 into the interior member body 2. At this time, the assembly of the confirmation member of the interior member body 2 is completed. The portion 2-1 is inserted from the side surface using the push wall 3-1, and as shown in FIG. 2B, the convex portion 3-7 of the tip side confirmation claw 3-2 is the hole portion 2 of the interior member body 2. -3, the assembly by the connector main body 1, the interior member main body 2 and the confirmation member main body 3 is completed as shown in FIG. The assembly procedure is not particularly limited. After the interior member main body 2 and the confirmation member main body 3 are assembled in advance, the assembly is assembled to the connector main body 1 and then assembled to the mating part 8 to select a shape as shown in FIG. It is also possible to do. The above-mentioned confirmation member that functions to be assembled to the interior member body 2 and confirm the connection state of the pipe P Body As shown in FIG. 5, the front end side confirmation claw 3-2 and the rear end shorter than the front end side confirmation claw 3-2 are integrally formed with the confirmation member main body 3 including the push wall 3-1 and the connector abutting wall 3-4. A side confirmation claw 3-3 is formed. A tip 3-7 of the tip side confirmation claw 3-2 is formed in a substantially L shape in the axial direction, and is inserted into the hole 2-3 of the interior member body 2 before the pipe P is connected. And after piping connection, it clamps so that the outer wall 2-7 of the interior member main body 2 may be held. A taper wall portion 3-5 is formed on the inner side of the convex portion 3-7 toward the axis, and a spool escape portion 3-6 is provided between the taper wall portion 3-7 and the connector abutting wall 3-4. Thus, when the confirmation member main body is further pushed in after the pipe connection is completed, it becomes a space for storing the rear end side spool portion P-2 and functions to confirm the connection state of the pipe P. The rear end side check portion claw 3-3 can be pushed in at that time to indicate that the rear end side spool portion P-2 is absent and similarly check the connection state of the pipe. To work. At this time, the confirmation member Body 3 keeps the state of being connected as an element of the connector after connecting and confirming the piping, and contributes to preventing the piping from falling off. However, the structure is extremely compact, so the occupied space is small and the operation is almost hindered. Never become.
[0033]
As described above, as shown in FIG. 2, after the assembly of the connector to the mating part is completed, the pipe P is inserted and connected from the rear of the connector. As shown in FIG. 4A, a backup ring 6 is wound around the front small diameter spool portion of P-1. The seal ring member 6 previously loaded in the groove portion 4-3 of the elastic claw wall 4 of the connector is pushed by the front end side spool portion P-1, and the inner wall portion 4-5 expands in the outer diameter direction. Then, it comes off from the groove 4-3, winds around the pipe in front of the backup ring 6, and is pressed against the connecting cylindrical wall 8-3 of the mating part to completely keep the air tightness of the pipe flow path. On the other hand, the groove 4-3 of the elastic claw wall 4 is closed in the axial direction, covers the rear large diameter spool portion of the front end side spool portion P-1 of the pipe P, and connects the pipe P and the connector 1 together. Maintain stable.
[0034]
At the time of the connection, the rear end side spool portion P-2 abuts against the tapered wall 3-5 of the front end side confirmation claw 3-2 of the confirmation member main body 3 and pushes it up. The protrusion 3-7 that opens in the outer diameter direction from the base of the main body 3 as a base point and is inserted into the hole 2-3 of the interior member main body 2 escapes from the hole 2-3 (see FIG. 3). Then confirmation member Body Confirming member by pushing the pushing wall 3-1 forward Body The connector abutting wall 3-4 is an interior member. Body Checking part Wall 2-5 In Further, the rear end side spool portion P-2 is positioned in the space of the spool escape portion 3-6 beyond the taper wall 3-5, and the force for opening the rear end side confirmation claw in the outer diameter direction is applied. Disappear. Therefore, the convex part 3-7 slid forward is closed in the axial direction, and the interior member Body As shown in FIG. 1, it is confirmed that the pipe connection is properly completed. In case of improper connection, for example, in a half-insertion state, the projection 3-7 escapes from the hole 2-3. Can't On the other hand, the rear end side confirmation claw 3-3 is also obstructed by the spool portion P-2, and the confirmation member Body Prevents sliding forward. 4B and 4C show the small-diameter pipe used in the application example of this example, the details are as described above.
[0035]
10 and 12, as still another application example of this example, a pipe P ′ in which a large and small two-stage spool is formed in the rear end side spool portion P-2 ′ similarly to the front end side spool portion is disclosed. In the former case, a cylindrical elastic sealing member 7 is wound around the rear end side spool portion P-2 ′ front small diameter spool, and in the latter case, an O ring shape is formed between the large and small spools of the rear end side spool portion P-2 ′. An elastic seal ring member 7 'is wound and each pipe P' is connected to the mating component 8 through the connector of this example in the same manner as in this example (FIGS. 9 and 11). reference). The elastic seal ring members 7 and 7 'used in the respective application examples function as a vibration-proof material that prevents dust from entering the connector body, and also prevents vibration caused in the pipe. As described above, as an application example based on the first embodiment, the connection of the four small-diameter pipes is completed substantially in the same manner as the present embodiment through the connector configured in the same manner as the present embodiment. Has been confirmed.
[0036]
The embodiment of the second invention according to the present application is finally confirmed by the connection state of the piping as shown in FIG. The connector used in this example is a confirmation member Body As shown in FIG. 16 (a), a hook-shaped hook 3-8 having a tapered wall inclined to the axial direction is formed at the tip of the rear end side confirmation claw 3-3 '. The rear end side confirmation claw spool relief portion 3-6 'is located between the central portions toward the longitudinal axis that is connected to the hook, and the rear end side spool holding portion between the contact wall 3-4' that is connected to the hook. 3-9 is formed. Also, the interior member of this example Body The confirmation member assembling part 2-1 'is formed with a recess 2-8 for engaging the hook-shaped hook 3-8, and the other parts are the same as those used in the first embodiment. We tried to connect the pipe to the mating part using the connector. As shown in FIG. 14, the confirmation member of this example Body The protrusion 3-7 'on the tip side confirmation claw is an interior member Body In the hole 2-3 ' Body The hooks 3-8 are respectively engaged with the recesses, and the assembly of the connector before the pipe connection is completed.
[0037]
The connection of the pipe according to this example is basically the same as that of the first embodiment, but first the tip side is confirmed by the rear spool portion P-2 of the pipe P inserted from the rear of the connector as shown in FIG. The tapered wall 3-5 'of the claw 3-2' is pushed up and opens in the outer diameter direction, and at the same time, the convex part 3-7 'of the claw escapes from the hole 2-3' of the interior member. Then confirmation member Body When the spool portion P-2 is stored in the space of the spool escape portion 3-6 ′, the force for opening the confirmation claw disappears and the convex portion 3-7 ′ closes in the axial direction. Interior material Body To hold the outer wall 2-7 '. At this time, the rear end side confirmation claw 3-3 'is also a confirmation member. Body With the slide to the front of the interior member Body The hook 3-8 is pulled out from the recess of the inner wall by the action of its own taper wall, and is clamped so as to be hugged by the interior member outer wall 2-7 'behind the tip side confirmation claw 3-2'. Here, when the spool pressing portion 3-9 of the rear end side confirmation claw 3-3 ′ is brought into contact with the spool portion P-2 in an inappropriate joining state, the confirmation member Body It becomes impossible to slide forward, and it will be recognized in advance that it is in a semi-fitted state.
[0038]
As shown in FIG. 19, the embodiment according to the third invention of the present application is provided with a semicircular pipe between the rear end side check claws 3-3 ″ of the check member main body 3 ″ which is close to the shape of the pipe outer diameter portion. As shown in FIG. 20 (a), a wall with a confirmation member of the interior member body 2 ″ is formed as a wall 3-10. 2-5 ' Is omitted. Connection of piping P with the connector of this example Continued Confirmed upon completion as shown in FIG. More specifically, the abutting wall 3-10 with a semicircular pipe of the rear end side confirmation claw 3-3 ″ abuts on the pipe outer diameter part behind the rear end side spool part P-2, so that the front end side Appropriate piping connection is confirmed while holding the nail protrusion 3-7 ″ on the interior member outer wall 2-7 ″.
[0039]
A connector main body 1 'according to the fourth invention of the present application is provided with an interior member as shown in FIGS. 22 (a), (b), (c) and (d). Body The connector 1 'according to this example is a connector body and an interior member. Body Assembling with is advantageous in that it is omitted in advance. Body As shown in FIG. 21, it was confirmed that the assembly and the pipe connection were completed in the same manner as in the embodiment based on the third invention.
[0040]
Connector body and interior parts Body As an application example of the above invention, in which FIG. 25 is integrated with the seal ring member 5 without forming a notch in the claw wall portion 4 ′ formed in front of the cylindrical portion of the connector body 2 ″. A connector main body 2 ″ having no engagement wall 4-4 connected to the groove 4-3 ′ is disclosed. As shown in FIG. 24, the front end spool portion P- is connected to the mating component 8 through the connector. A pipe P ″ 1 ′ having only a small-diameter spool is disclosed, and a pipe connection state and confirmation thereof are made as shown in FIG.
[0041]
Further, as a further application example, a claw wall 4 ″ provided in front of the cylindrical portion of the connector body is provided with a notch portion as shown in FIG. 26 to facilitate the loading of the seal ring member. FIG. 23 discloses a pipe connection state to a mating part and its confirmation by substantially the same means as the connection.
[0042]
An embodiment of the fifth invention according to the present application and its application are disclosed in FIGS. The connector body in this example is based on a quick connector that has been widely used in the past, and a confirmation member used in the second invention of the present application. Body By combining the above, the connection of the piping through the connector can be confirmed simply and reliably. Specifically, as shown in FIG. 28, a hole 10-2 for inserting the convex portion 3-7 'of the front end side check claw into the rear large-diameter outdoor wall portion 10-1 of the connector main body 10, and the rear end side check A recess 10-3 for engaging the hook of the claw is formed, and the connector before pipe connection by the connector main body 10 and the confirmation member main body 3 'is completed. The connection of the pipe and the confirmation of the connection state in this example are substantially the same as the method in the second invention. However, the structure of the connector body 10 is different as shown in FIGS. Body The pipe P used from where it does not exist is also configured as shown in FIG. 31, and when connecting the pipe, after the child-shaped portion of the tip of the connector body is assembled to the mating part, the pipe is inserted from the rear of the connector, When the spool portion pushes up the main body claw portion 10-5 in the outer diameter direction and passes through the tip of the claw portion, the claw portion 10-5 is elastically restored and closed so as to push in the rear end portion of the spool portion and the pipe is connected. Is configured to ensure.
[0043]
Check here Body As shown in FIG. 29, when the pipe is inserted, the spool portion hits the tapered wall 3-5 'of the tip side confirmation claw 3-2' and is pushed up to open in the outer diameter direction. The protruding portion 3-7 'escapes from the hole 10-2 of the connector body. Then confirmation member Body When the spool portion is housed in the space of the spool escape portion 3-6 ′, the force for opening the confirmation claw disappears, and the convex portion 3-7 ′ becomes the outer wall 10 of the large-diameter chamber of the connector body. -4 to hold. At this time, in a state where the claw portion 10-5 of the connector body is released from being pushed up by the spool portion and is elastically restored to close the rear end portion of the pipe spool portion, the rear end side confirmation claw 3- 3 'is also a confirmation member Body The hook 3-8 comes out of the concave portion 10-3 of the connector main body by the action of its own taper wall, and the outer wall 10-4 of the large-diameter chamber of the connector main body is located behind the front end side claw. In addition, the proper connection state of the piping is confirmed by holding it so as to hold it. If the connection of the piping is inappropriate and the claw part 10-5 of the connector body is not properly closed, that is, when the spool part remains open in the outer diameter direction and cannot be fully elastically restored, check the rear end side. The spool pressing portion 3-9 of the claw 3-3 'is obstructed by the claw portion 10-5, and the confirmation member Body Therefore, it is impossible to slide the tube forward, and it is possible to recognize in advance that the connection between the pipe and the connector is in a half-fitted state.
[0044]
33 and 34 are confirmation members as application examples of the embodiment. Body A release claw is provided on the pushing wall portion of the confirmation member main body, and the claw portion 10-5 of the connector main body is moved in the outer diameter direction by pushing the release claw into the connector after the pipe connection. Open and pressed into this Arrangement The pipe connection is easily released by allowing the pipe spool portion to pass rearward. FIG. 35 shows still another application example of the confirmation member according to the present invention, in which the connector main body has been widely used conventionally, and the substantial function operates in the same manner as described above.
[0045]
【The invention's effect】
As is clear from the above embodiments, the small-diameter pipe connection connector according to the present invention is formed of a cylindrical body with a female screw formed in the rear inner diameter portion, and has a flange portion at one end in the outer peripheral direction and the other end connected to the flange portion. It consists of a cylindrical part with a male screw that is screwed into the mating part and assembled together. The part of the cylindrical part excluding the male screw is notched, and the tongue-like elastic claw wall of the remaining part of the notch is biased inward The tip toe portion has a semicircular arc shape, a groove portion on the inner peripheral surface, a connector main body provided with an engagement wall continuously therewith, and a confirmation member assembly portion that contacts the flange portion of the connector main body rearward The other end in the outer circumferential direction connected to the cylindrical portion is formed of a cylindrical portion, and a male screw is formed in the vicinity of the confirmation member assembly portion of the cylindrical portion so as to be screwed into the female screw of the connector body and to be integrally engaged. Interior member body, push wall and connector On both opposing sides of the confirmation member main body composed of the abutting wall, a front end side confirmation claw having a convex portion in the axial direction of the opposite end of the confirmation member main body, and a short rear end side confirmation claw depending on the opposed position It consists of the confirmation member main body provided integrally, and makes it a basic structural requirement.
[0046]
In spite of such a simple structure, the connector body can be assembled to the mating part with a very simple operation using only a generally used spanner without using a specific dedicated tool. The strong assembly is completed. In addition, it was confirmed that the airtightness of the pipe flow path, which is the original function required for the connector, is maintained in a complete state, and that the airtightness between the connector main body and the counterpart component is also ensured in a substantially complete state. Further, in the present invention, a confirmation member used in combination with the connector main body and constituting a connector for connecting a small diameter pipe Body As a result of this, anyone can easily check the complete connection status of the piping without depending on the skill level of the operator, etc. Body Is attached to the connector body in a compact manner, taking into account contact with the surrounding space and other devices more than necessary. That Concerns are omitted.
[0047]
The confirmation member according to the present invention Body Remains as a constituent member of the connector even after the pipe connection, and in each of the embodiments based on the first to fourth inventions, it has been confirmed that it effectively functions as a prevention of pipe disconnection. Furthermore, the confirmation member of the present invention Body Can be used in combination with a conventional quick connector. In this case, the specific effect has been confirmed in each of the embodiments of the fifth invention. Body Functions effectively to confirm the connection state of the piping and to prevent the connector body claw from returning (retainer). Also, in the application example, a confirmation member with a releaser Body Is illustrated, but the confirmation member Body It has also been confirmed that the use of can facilitate the removal of the pipe after connection, and can efficiently perform maintenance work such as when the seal ring member or the like deteriorates and requires replacement.
[Brief description of the drawings]
FIG. 1 shows a state of thin pipe connection according to an embodiment of a connector for thin pipe connection of the present invention. Figure (A) is a vertical side view, and (b) is a rear view thereof.
FIG. 2 shows a state before the pipe is connected after the connector is assembled to the mating part in the same embodiment. Figure (A) is a vertical side view, and (b) is a rear view thereof.
FIG. 3 shows a state before the connection state is confirmed after the pipe connection in the same embodiment. Figure (A) is a vertical side view, and (b) is a rear view thereof.
FIG. 4 shows the same embodiment. Use A thin-diameter piping terminal, a backup ring incorporated therein, and a spool portion outer diameter adjusting member of an application example thereof are shown, (a) is a partially broken side view, and (b) and (c) are pipes of the application example. FIG.
[Fig.5] Assembled in the connector of the same embodiment Get into The single body of a confirmation member main body is shown, (a) is a front view, (b) is the top view, (c) is the side view.
6A and 6B show a single body of the interior member body incorporated in the connector of the embodiment, wherein FIG. 6A is a rear view, FIG. 6B is a plan view thereof, and FIG. 6C is a longitudinal side view thereof.
FIG. 7 is a cross-sectional view of the connector main body of the same embodiment and a seal ring member incorporated therein.
8A and 8B show a single body of a connector body used in the embodiment, wherein FIG. 8A is a longitudinal side view, and FIG. 8B is a front view thereof.
FIG. 9 shows a small-diameter pipe connection state (corresponding to FIG. 1) of another embodiment according to the present invention. Figure (A) is a vertical side view, and (b) is a rear view thereof.
FIG. 10 is a partially broken side view (corresponding to FIG. 4) of a small-diameter pipe terminal incorporated in the same example.
FIG. 11 shows a thin pipe connection state (corresponding to FIG. 1) of still another embodiment of the present invention. Figure (A) is a vertical side view, and (b) is a rear view thereof.
FIG. 12 is a partially broken side view (corresponding to FIG. 4) of a small-diameter pipe incorporated in the same example.
FIG. 13 shows a small-diameter pipe connection state (corresponding to FIG. 1) using a connector according to another embodiment of the present invention. Figure (A) is a vertical side view, and (b) is a rear view thereof.
FIG. 14 shows a state (corresponding to FIG. 2) before the pipe is connected after the connector in the same embodiment is assembled to the mating part. Figure (A) is a vertical side view, and (b) is a rear view thereof.
FIG. 15 shows a state (corresponding to FIG. 3) before the connection state is confirmed after the small diameter pipe is connected to the connector in the same embodiment. Figure (A) is a vertical side view, and (b) is a rear view thereof.
FIGS. 16A and 16B show a single body (corresponding to FIG. 5) of a confirmation member main body incorporated in the connector of the embodiment, wherein FIG. 16A is a front view, FIG. 16B is a plan view thereof, and FIG. .
FIG. 17 shows a single body (corresponding to FIG. 6) of the interior member body incorporated in the connector of the embodiment, (a) is a rear view, (b) is a plan view thereof, and (c) is a longitudinal side view thereof. is there.
FIGS. 18A and 18B show a thin-diameter pipe connection state (corresponding to FIG. 1) by a connector according to another embodiment of the present invention, in which FIG. 18A is a longitudinal side view, and FIG. 18B is a rear view thereof.
FIGS. 19A and 19B show a single body (corresponding to FIG. 5) of the confirmation member main body incorporated in the embodiment, FIG. 19A is a front view, FIG. 19B is a plan view thereof, and FIG. 19C is a side view thereof.
20 shows a single body (corresponding to FIG. 6) of the interior member body incorporated in the embodiment, (a) is a rear view, (b) is a plan view thereof, and (c) is a longitudinal side view thereof.
FIG. 21 shows a thin pipe connection state (corresponding to FIG. 1) by a connector according to another embodiment of the present invention, wherein (a) is a longitudinal side view and (b) is a rear view thereof.
FIG. 22 shows a single connector body in the same embodiment. Figure (A) is a rear view, (b) is a longitudinal side view thereof, (c) is a plan view thereof, and (d) is a front view thereof.
FIG. 23 shows a thin pipe connection state (corresponding to FIG. 1) in an application example of the embodiment, (a) is a longitudinal side view, and (b) is a rear view thereof.
24 is a partially cutaway side view showing a small-diameter piping terminal (corresponding to FIG. 4) incorporated in the same example. FIG.
25 shows a single connector body (corresponding to FIG. 22) incorporated in still another application example of the embodiment, (a) is a rear view, (b) is a longitudinal side view thereof, and (c) is a part thereof. A plan view, (d) is a front view thereof.
FIG. 26 shows a single connector body (corresponding to FIG. 22) incorporated in still another application example of the embodiment, (a) is a rear view, (b) is a longitudinal side view thereof, and (c) is a part thereof. A plan view, (d) is a front view thereof.
FIGS. 27A and 27B show a thin-diameter pipe connection state (corresponding to FIG. 1) according to another embodiment of the present invention, wherein FIG. 27A is a longitudinal half-side view of a longitudinal section, and FIG. 27B is a rear view thereof. is there.
FIG. 28 shows a state before connection of the small-diameter pipe in the same example (corresponding to FIG. 2), (a) is a longitudinal half-side view of a longitudinal section, and (b) is a rear view thereof.
FIG. 29 shows a state (corresponding to FIG. 3) after confirming the connection state after connection of the small-diameter pipe in the same example, (a) is a longitudinal half-side view of a longitudinal section, and (b) is a rear view. is there.
30 shows a single body (corresponding to FIG. 8) of a connector main body incorporated in the embodiment, (a) is a longitudinal half-view side view, and (b) is a front view thereof.
FIG. 31 is a partially broken side view showing a small-diameter piping terminal (corresponding to FIG. 4) incorporated in the same example.
32 shows a single body (corresponding to FIG. 5) of the confirmation member main body incorporated in the embodiment, (a) is a front view, (b) is a plan view thereof, and (c) is a side view thereof.
FIG. 33 shows a single body (corresponding to FIG. 32) of the confirmation member main body incorporated in the application example of the embodiment, (a) is a front view, (b) is a plan view thereof, and (c) is a side view thereof. is there.
FIG. 34 shows a single body (corresponding to FIG. 32) of a confirmation member main body incorporated in another application example of the embodiment, (a) is a front view, (b) is a plan view thereof, and (c) is a part thereof. It is a side view.
FIG. 35 is a confirmation member according to the present invention. Body 7 shows a small-diameter pipe connection state (corresponding to FIG. 1) of still another embodiment using (1), (a) is a longitudinal half-side view of the longitudinal direction, and (b) is a rear view thereof.
FIG. 36 is a longitudinal side view of a longitudinal half-mount showing a thin pipe connection state (corresponding to FIG. 1) using a conventional connector.
FIG. 37: Conventional quick connector and confirmation member Body (A) is a longitudinal half-mounting longitudinal side view showing a thin pipe connection state (corresponding to FIG. 1), and (b) is a confirmation member incorporated therein Body The back explanatory drawing at the time of piping insertion containing (c) is a top view of the said confirmation member single-piece | unit.
[Explanation of symbols]
1, 1 ', 1 ", 1"' Connector body
1-1, 1-1 ′, 1-1 ″, 1-1 ″ ′ Front cylindrical portion
1-2, 1-2 ′, 1-2 ″, 1-2 ″ ′ Flange
1-3, 1-3 ′, 1-3 ″, 1-3 ″ ′ male thread
1-4, 1-4 ′, 1-4 ″, 1-4 ″ ″ inner diameter
1-5 Female thread
2, 2 ', 2 ", 2"' Interior member body
2-1, 2-1 ', 2-1 ", 2-1"' confirmation member assembly part
2-2, 2-2 ', 2-2 ", 2-2"' cylindrical part
2-3, 2-3 ′, 2-3 ″, 2-3 ″ ″ hole
2-4, 2-4 ', 2-4 "male thread
2-5, 2-5 'Confirming member abutting wall
2-6, 2-6 ′, 2-6 ″, 2-6 ″ ″ inner diameter
2-7 Exterior wall
2-8 Concave
3, 3 ', 3 ", 3"' confirmation member body
3-1, 3-1 ', 3-1 ", 3-1"' Pushing wall
3-2, 3-2 ', 3-2 ", 3-2"' Tip side confirmation claw
3-3, 3-3 ', 3-3 ", 3-3"' Rear end side confirmation claw
3-4, 3-4 'Connector abutment wall
3-4 ″ Connector outer wall butting wall
3-5, 3-5 'taper wall
3-6, 3-6 ′, 3-6 ″, 3-6 ″ ″ Spool relief
3-7 Convex
3-8 hook
3-9 Spool presser
3-10 Pipe abutting wall
3-11, 3-11 'Release claw
4, 4 ', 4 ", 4"' Elastic nail wall (nail wall)
4-1, 4-1 ', 4-1 ", 4-1"' Notch
4-2, 4-2 ', 4-2 ", 4-2"' Toe
4-3, 4-3 ′, 4-3 ″, 4-3 ″ ″ groove
4-4, 4-4 'engagement wall
4-5, 4-5 'inner wall
5 Seal ring
6 Backup ring
6-1, 6-2 Spool part outer diameter adjusting member
7, 7 'Elastic seal ring member
8 mating parts
8-1 Female thread
8-2 Flow path
8-3 Connecting cylinder wall
8-4 Mounting hole
10 Connector body
10-1 Large diameter chamber
10-2 Hole
10-3 Recess
10-4 Outer wall
10-5 Nail
P, P ', P ", P"' Small diameter piping
P-1, P-1 ′, P-1 ″ Tip spool
P-2, P-2 ′, P-2 ″ Rear end spool
P-3, P-4 Spool part
101 Connector body
101 'Notch window groove
101 ″ step wall
102 Connecting cylinder wall
103 Large diameter room
103 'small diameter chamber
104 flow path
105 Nail wall
106 Seal ring member
107 Bushing member
108 Tube ring member
109 Confirmation body
109 'hanging wall
109 ″ hanging wall
110 lock wall
111 Tapered surface
201 Connector body
201-1 Flange
201-2 cylindrical part
201-4 ID
202 Connecting cylinder wall
203 flow path
204 Elastic nail wall
204-1 toes
204-2 Groove
205 Notch
206-1 first spool section
206-2 Second spool section
207 Seal ring member
208 Male thread
209 Nodge

Claims (19)

軸芯に細径配管を嵌挿する孔が貫設され、その孔に連なる内径部後方には内装部材本体の雄ネジに螺合するための雌ネジが形成され、一方、外周方向の一端に対応する相手部品に当接するフランジ部、それに連なる他端が相手部品の雌ネジに螺合して一体に組み付けられるための雄ネジを有する円筒部からなり、該雄ネジを除く円筒部の外周方向に等分に少なくとも２以上の切欠き部が設けられ、該切欠き部の切欠き残部が、それぞれ舌状の弾性爪壁をなして内方に付勢され、該弾性爪壁の先端爪先部分は半円弧状に形成され、その内周面にはシールリング部材を内装する溝部と、該溝部に連続して配管スプール部との係合壁が設けられてなるコネクター本体と、軸芯に細径配管を嵌挿する孔が貫設され、後方に前記コネクター本体のフランジ部に当接する確認部材組み付け部、それに連なる外周方向他端が円筒部からなり、該円筒部の確認部材組み付け部近傍に、前記コネクター本体の内径部後方に設けられた雌ネジに螺合し、一体に係合されるための雄ネジが形成されてなる確認部材本体を保持するための内装部材本体と、前記内装部材本体の確認部材組み付け部に設けられた側面から押し込むための押し壁と、コネクター突き当て壁とからなる確認部材本体であって、該確認部材本体の対向する両側に一体に形成される確認爪のうち、該確認部材本体の反対側端部の軸芯方向に凸部を有する先端側確認爪、該先端側確認爪の対向位置に、より短尺の後端側確認爪が一体に設けられてなる確認部材本体、とからなることを特徴とする細径配管接続用コネクター。A hole for inserting a small-diameter pipe is formed through the shaft core, and a female screw is formed behind the inner diameter portion connected to the hole to be engaged with the male screw of the interior member body. A flange part that abuts a corresponding mating part, and a cylindrical part having a male thread for the other end connected to the female thread of the mating part to be screwed together and assembled, and the outer circumferential direction of the cylindrical part excluding the male thread At least two or more notch portions are equally provided to each other, and the notch remaining portions of the notch portions are each urged inward by forming a tongue-like elastic nail wall, and the tip toe portion of the elastic nail wall Is formed in a semicircular arc shape, the inner peripheral surface of which has a groove portion in which a seal ring member is internally provided, a connector body in which an engagement wall is provided continuously from the groove portion to the pipe spool portion, and a thin shaft. A hole for inserting the diameter pipe is provided through the flange of the connector body at the rear. A confirmation member assembling part that comes into contact with the part, and the other end in the outer peripheral direction connected to the cylindrical part is a cylindrical part, and is screwed into a female screw provided behind the inner diameter part of the connector body in the vicinity of the confirmation member assembling part of the cylindrical part, An interior member body for holding a confirmation member body formed with a male screw to be integrally engaged, a push wall for pushing in from a side surface provided in a confirmation member assembly portion of the interior member body, A confirmation member main body comprising a connector abutment wall, and of the confirmation claws formed integrally on opposite sides of the confirmation member main body, a convex portion is formed in the axial direction of the opposite end portion of the confirmation member main body. A connector for connecting a small-diameter pipe, comprising: a leading end side confirmation claw, and a confirmation member body in which a shorter rear end side confirmation claw is integrally provided at a position opposite to the leading end side confirmation claw. 前記コネクター本体のフランジ部が、スパナ等の汎用工具によって相手部品に強固に組み付け易くするため、ナット状に形成されてなることを特徴とする請求項１に記載の細径配管接続用コネクター。  2. The connector for connecting a small diameter pipe according to claim 1, wherein the flange portion of the connector main body is formed in a nut shape so that the flange portion of the connector main body can be firmly attached to a mating part with a general-purpose tool such as a spanner. 前記内装部材本体の確認部材組み付け部には、確認部材突き当て壁を有し、更に前記確認部材本体の先端側確認爪の凸部を収納する穴部と、前記先端側確認爪により挟持される外壁が、前記コネクター本体のフランジ部と同形状に設けられてなることを特徴とする請求項１に記載の細径配管接続用コネクター。The confirmation member assembling portion of the interior member main body has a check member abutment wall is further a hole for accommodating the protrusion of the distal end side check claw of the confirmation member body, held between the distal-side check pawl 2. The connector for connecting a small-diameter pipe according to claim 1, wherein an outer wall is provided in the same shape as a flange portion of the connector main body. 前記確認部材本体の先端側確認爪の凸部から該確認部材本体方向の壁面に、軸芯側に傾斜したテーパー壁が形成され、該テーパー壁と確認部材本体との間に、細径配管の後端側スプール逃げ部が設けられてなることを特徴とする請求項1 に記載の細径配管接続用コネクター。A convex portion on the distal end side check claw of the confirmation member body to the wall surface of the check member body direction, the tapered walls inclined axis side forms, between the tapered wall and the confirmation member body, the small-diameter piping 2. The connector for connecting a small-diameter pipe according to claim 1, further comprising a rear end side spool relief portion. 軸芯に細径配管を嵌挿する孔が貫設され、その孔に連なる内径部後方には内装部材本体の雄ネジに螺合するための雌ネジが形成され、一方、外周方向の一端に対応する相手部品に当接するフランジ部、それに連なる他端が相手部品の雌ネジに螺合して一体に組み付けられるための雄ネジを有する円筒部からなり、該雄ネジを除く円筒部の外周方向に等分に少なくとも２以上の切欠き部が設けられ、該切欠き部の切欠き残部が、それぞれ舌状の弾性爪壁をなして内方に付勢され、該弾性爪壁の先端爪先部分は半円弧状に形成され、その内周面にはシールリング部材を内装する溝部と、該溝部に連続して配管スプール部との係合壁が設けられてなるコネクター本体と、軸芯に細径配管を嵌挿する孔が貫設され、後方に前記コネクター本体のフランジ部に当接する確認部材組み付け部、それに連なる外周方向他端が円筒部からなり、該円筒部の確認部材組み付け部近傍に、前記コネクター本体の内径部後方に設けられた雌ネジに螺合し、一体に係合されるための雄ネジが形成されてなる確認部材本体を保持するための内装部材本体と、前記内装部材本体の確認部材組み付け部に設けられた側面から押し込むための押し壁と、コネクター突き当て壁および確認部材突き当て壁とからなる確認部材本体であって、該確認部材本体の対向する両側に一体に形成される確認爪のうち、該確認部材本体の反対側端部の軸芯方向に凸部を有する先端側確認爪、該先端側確認爪の対向位置に、先端に鉤型のフックが形成された前記先端側確認部材より若干短尺の後端側確認爪が一体に設けられてなる確認部材本体、とからなることを特徴とする細径配管接続用コネクター。A hole for inserting a small-diameter pipe is formed through the shaft core, and a female screw is formed behind the inner diameter portion connected to the hole to be engaged with the male screw of the interior member body. A flange part that abuts a corresponding mating part, and a cylindrical part having a male thread for the other end connected to the female thread of the mating part to be screwed together and assembled, and the outer circumferential direction of the cylindrical part excluding the male thread At least two or more notch portions are equally provided to each other, and the notch remaining portions of the notch portions are each urged inward by forming a tongue-like elastic nail wall, and the tip toe portion of the elastic nail wall Is formed in a semicircular arc shape, the inner peripheral surface of which has a groove portion in which a seal ring member is internally provided, a connector body in which an engagement wall is provided continuously from the groove portion to the pipe spool portion, and a thin shaft. A hole for inserting the diameter pipe is provided through the flange of the connector body at the rear. A confirmation member assembling part that comes into contact with the part, and the other end in the outer peripheral direction connected to the cylindrical part is a cylindrical part, and is screwed into a female screw provided behind the inner diameter part of the connector body in the vicinity of the confirmation member assembling part of the cylindrical part, An interior member body for holding a confirmation member body formed with a male screw to be integrally engaged, a push wall for pushing in from a side surface provided in a confirmation member assembly portion of the interior member body, A confirmation member main body comprising a connector abutment wall and a confirmation member abutment wall, and of the confirmation claws formed integrally on opposite sides of the confirmation member main body, the shaft at the opposite end of the confirmation member main body A front end side confirmation claw having a convex part in the core direction, and a rear end side confirmation claw slightly shorter than the front side confirmation member in which a hook-shaped hook is formed at the front end at a position opposite to the front end side confirmation claw Confirmation made Material body, thin pipe connection for the connector, characterized in that it consists of and. 前記コネクター本体のフランジ部が、スパナ等の汎用工具によって相手部品に強固に組み付け易くするため、ナット状に形成されてなることを特徴とする請求項５に記載の細径配管接続用コネクター。  6. The connector for connecting a small diameter pipe according to claim 5, wherein the flange portion of the connector body is formed in a nut shape so that the flange portion of the connector body can be firmly assembled to a mating part with a general-purpose tool such as a spanner. 前記内装部材本体の確認部材組み付け部には、確認部材突き当て壁を有し、更に前記確認部材本体の先端側確認爪の凸部を収納する穴部と、前記後端側確認爪先端の鉤型のフックを収納する凹部とが形成され、更に前記先端側確認爪の凸部と前記後端側確認爪先端の鉤型のフックとにより挟持される外壁が、前記コネクター本体のフランジ部と同形状に設けられてなることを特徴とする請求項５に記載の細径配管接続用コネクター。The confirmation member assembling portion of the interior member main body is confirmed member abutment has a wall, further said check member hole portion for accommodating the protrusion of the distal end side check nail body, the rear end side check claw end a recess for accommodating the hook-shaped hook is formed, and further an outer wall which is held by a hook of hook of the rear-side check pawl tip and the convex portion of the distal-side check pawl flange of the connector body 6. The small diameter pipe connection connector according to claim 5, wherein the connector is provided in the same shape. 前記確認部材本体の先端側確認爪の凸部から該確認部材本体方向の壁面に、軸芯側に傾斜したテーパー壁が形成され、該テーパー壁と確認部材本体との間に、細径配管の後端側スプール逃げ部が設けられてなることを特徴とする請求項５に記載の細径配管接続用コネクター。A convex portion on the distal end side check claw of the confirmation member body to the wall surface of the check member body direction, the tapered walls inclined axis side forms, between the tapered wall and the confirmation member body, the small-diameter piping 6. The connector for connecting a small diameter pipe according to claim 5, further comprising a rear end side spool relief portion. 前記確認部材本体に一体に取り付けられる後端側確認爪の、確認部材本体近傍にはスプール押さえ部が、それに連なる反対側先端部には鉤型のフックが形成され、該フックの先端面は軸芯方向に傾斜したテーパー壁が設けられ、該フックと前記スプール押さえ部との間に、後端側確認爪スプール逃げ部が設けられてなることを特徴とする請求項５に記載の細径配管接続用コネクター。  A spool pressing portion is formed in the vicinity of the confirmation member main body of the rear end side confirmation claw that is integrally attached to the confirmation member main body, and a hook-shaped hook is formed on the opposite front end portion thereof. 6. The small-diameter pipe according to claim 5, wherein a tapered wall inclined in the core direction is provided, and a rear end side confirmation claw spool escape portion is provided between the hook and the spool pressing portion. Connector for connection. 確認部材本体に一体に設けられる２本の後端側確認爪間が半円形に形成され、その内側に細径配管外周部と略同形状の配管突き当て壁、押し壁部にコネクター外壁突き当て壁が形成されてなることを特徴とする請求項５に記載の細径配管接続用コネクター。  Between the two rear end side check claws provided integrally with the check member body is formed in a semicircular shape, a pipe abutting wall having the same shape as the outer periphery of the small-diameter pipe inside, and a connector outer wall abutting against the push wall 6. The connector for connecting a small-diameter pipe according to claim 5, wherein a wall is formed. 前記確認部材本体を保持する内装部材本体から、確認部材突き当て壁が取り除かれたことを特徴とする請求項５に記載の細径配管接続用コネクター。Diameter pipe connecting connector according to claim 5, characterized in that the interior member main body for holding the confirmation member body, a confirmation member abutting wall removed. 軸芯に細径配管を嵌挿する孔が貫設され、外周方向の一端に対応する相手部品に当接するフランジ部、該フランジ部の後方に確認部材本体を保持するための確認部材組み付け部が一体として設けられ、一方、前記フランジ部に連なる他端が、相手部品の雌ネジに螺合し、一体に組み付けられるための雄ネジを有する円筒部からなり、該雄ネジを除く円筒部の外周方向に等分に少なくとも２以上の切欠き部が設けられ、該切欠き部の切欠き残部が、それぞれ舌状の弾性爪壁をなして内方に付勢され、該弾性爪壁の先端爪先部分は半円弧状に形成され、その内周面にはシールリング部材を内装する溝部と、それに連なるスプール部との係合壁が設けられてなるコネクター本体と、前記コネクター本体のフランジ部に一体として設けられ、確認部材先端側確認爪の凸部を収納する穴部と、該先端側確認爪の凸部によって挟持される外周壁を有する確認部材組み付け部と、前記確認部材組み付け部に設けられた側面から押し込むための押し壁と、コネクター外壁突き当て壁および確認部材突き当て壁とからなる確認部材本体において、該確認部材本体の対向する両側に一体に形成される確認爪のうち、該確認部材本体の反対側端部の軸芯方向に凸部を有する先端側確認爪、該先端側確認爪の対向位置に、より短尺の後端側確認爪が一体に設けられてなる確認部材本体、とからなることを特徴とする細径配管接続用コネクター。The shaft core has a hole through which the small-diameter pipe is inserted, and has a flange portion that abuts a mating part corresponding to one end in the outer circumferential direction, and a confirmation member assembly portion for holding the confirmation member main body behind the flange portion. On the other hand, the other end connected to the flange portion is a cylindrical portion having a male screw to be screwed into a female screw of a mating part and assembled integrally, and the outer periphery of the cylindrical portion excluding the male screw At least two or more notch portions are provided equally in the direction, and the notch remaining portions of the notch portions are each urged inward by forming a tongue-like elastic nail wall, and the tip nail of the elastic nail wall The part is formed in a semicircular arc shape, and the inner peripheral surface of the connector main body is provided with a groove portion in which a seal ring member is internally provided and an engagement wall with a spool portion connected to the groove portion, and the flange portion of the connector main body. Provided as a confirmation member And the hole for accommodating the protrusion of the end side check pawl, a confirmation member assembling portion having an outer peripheral wall is nipped by the convex portion of the tip side check pawl, for pushing from the side provided in the confirmation member assembling part A confirmation member main body comprising a push wall, a connector outer wall abutting wall, and a confirmation member abutting wall. Of the confirmation claws integrally formed on opposite sides of the confirmation member main body, the opposite end of the confirmation member main body A front end side confirmation claw having a convex portion in the axial direction of the portion, and a confirmation member body in which a shorter rear end side confirmation claw is integrally provided at a position opposite to the front end side confirmation claw. Connector for small diameter pipe connection. 前記コネクター本体のフランジ部及び該フランジ部の後方に一体として設けられる確認部材組み付け部の外周面が、スパナ等の汎用工具によって相手部品に強固に組み付け易くするため、ナット状に形成されてなることを特徴とする請求項１２に記載の細径配管接続用コネクター。  The outer peripheral surface of the flange portion of the connector main body and the confirmation member assembly portion provided integrally behind the flange portion is formed in a nut shape so that it can be firmly assembled to a mating part with a general-purpose tool such as a spanner. The small diameter pipe connection connector according to claim 12. 前記確認部材本体に一体に設けられる２本の後端側確認爪間が半円形に形成され、その内側に細径配管外周部と略同形状の配管突き当て壁、押し壁部にコネクター外壁突き当て壁が形成されてなることを特徴とする請求項１２に記載の細径配管接続用コネクター。  Between the two rear end side confirmation claws provided integrally with the confirmation member main body is formed in a semicircular shape, a pipe abutting wall having substantially the same shape as the outer periphery of the small-diameter pipe, and a connector outer wall protrusion on the push wall. 13. A connector for connecting a small-diameter pipe according to claim 12, wherein a contact wall is formed. 前記確認部材本体を保持する確認部材組み付け部から、確認部材突き当て壁が取り除かれたことを特徴とする請求項１２に記載の細径配管接続用コネクター。Diameter pipe connecting connector according to claim 12, characterized in that the check member assembling portion which holds the confirmation member body, a confirmation member abutting wall removed. 前記コネクター本体が、軸芯に細径配管を嵌挿する孔が貫設され、外周方向の一端に対応する相手部品に当接するフランジ部、該フランジ部の後方に確認部材本体を保持するための確認部材組み付け部が一体として設けられ、一方、前記フランジ部に連なる他端が、相手部品の雌ネジに螺合し、一体に組み付けられるための雄ネジを有する円筒部からなり、該雄ネジを除く円筒部の略１／２部分が先端に向かって先細るテーパー状に、残部が円筒状に形成された爪壁をなし、該爪壁先端の爪先部分の内周面に、シールリング部材を内装する半円弧状の溝部が形成されてなることを特徴とする請求項１２に記載の細径配管接続用コネクター。The connector main body has a hole through which a small-diameter pipe is inserted into the shaft core, and a flange portion that abuts a mating part corresponding to one end in the outer circumferential direction, for holding the confirmation member main body behind the flange portion. The confirmation member assembling part is integrally provided, and the other end connected to the flange part is formed by a cylindrical part having a male screw to be screwed into a female screw of a mating part and integrally assembled. A claw wall having a taper shape in which approximately ½ part of the cylindrical part excluding the taper is tapered toward the tip and the remaining part is formed in a cylindrical shape, and a seal ring member is provided on the inner peripheral surface of the claw tip part of the claw wall tip. 13. The connector for connecting a small-diameter pipe according to claim 12, wherein a semicircular arc-shaped groove portion is formed. 前記コネクター本体が、軸芯に細径配管を嵌挿する孔が貫設され、外周方向の一端に対応する相手部品に当接するフランジ部、該フランジ部の後方に確認部材本体を保持するための確認部材組み付け部が一体として設けられ、一方、前記フランジ部に連なる他端が、相手部品の雌ネジに螺合し、一体に組み付けられるための雄ネジを有する円筒部からなり、該雄ネジを除く円筒部の外周方向に等分に少なくとも２以上の切欠き部が設けられ、該切欠き部の切欠き残部が、それぞれ舌状の弾性爪壁をなして内方に付勢され、該弾性爪壁の先端爪先部分の内周面には、シールリング部材を内装する半円弧状の溝部が形成されてなることを特徴とする請求項１２に記載の細径配管接続用コネクター。The connector main body has a hole through which a small-diameter pipe is inserted into the shaft core, and a flange portion that abuts a mating part corresponding to one end in the outer circumferential direction, for holding the confirmation member main body behind the flange portion. The confirmation member assembling part is integrally provided, and the other end connected to the flange part is formed by a cylindrical part having a male screw to be screwed into a female screw of a mating part and integrally assembled. at least two notches are provided equally in the outer peripheral direction of the cylindrical portion except notch remainder of notch portion is biased towards the inner respectively forms a tongue-shaped elastic Tsumekabe, elastic 13. The connector for connecting a small-diameter pipe according to claim 12, wherein a semicircular arc-shaped groove portion that houses a seal ring member is formed on an inner peripheral surface of a tip toe portion of the claw wall. 前記細径配管接続用コネクターを介して相手部品に取り付けられる細径配管の端末に、所定間隔で複数のスプール部が形成され、該スプール部によりシーリング部材、バックアップリング、スプール部外径調節部材及び／又は弾性シーリング部材を保持し、相手部品の連結筒壁に係圧して該相手部品の流路と細径配管端末との気密を確保すると共に、スプール部外径の調節若しくはコネクター系内への塵埃の混入を防止することを特徴とする請求項１乃至１７のいずれかに記載の細径配管接続用コネクター。  A plurality of spool portions are formed at predetermined intervals on the ends of the small diameter pipes attached to the mating parts via the small diameter pipe connection connectors, and the sealing portions, backup rings, spool portion outer diameter adjusting members, And / or holding the elastic sealing member and engaging the connecting cylindrical wall of the mating part to ensure airtightness between the flow path of the mating part and the small-diameter piping terminal, and adjusting the outer diameter of the spool part or entering the connector system 18. The connector for connecting a small-diameter pipe according to claim 1, wherein dust is prevented from being mixed. 前記確認部材本体にリリース用の爪を設けてなることを特徴とする請求項５乃至１８のいずれかにに記載の細径配管接続用コネクター。  The small diameter pipe connection connector according to claim 5, wherein a release claw is provided on the confirmation member main body.
JP2003057029A 2003-03-04 2003-03-04 Connector for small diameter pipe connection Expired - Fee Related JP4367746B2 (en)

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JP4822394B2 (en) * 2005-03-16 2011-11-24 臼井国際産業株式会社 Connector for small diameter pipe connection
JP4772410B2 (en) * 2005-07-27 2011-09-14 オリンパス株式会社 Endoscope device and optical adapter
JP4749244B2 (en) * 2006-06-09 2011-08-17 臼井国際産業株式会社 Connector for small diameter pipe connection
CN103196036B (en) * 2013-04-02 2014-10-29 力帆实业(集团)股份有限公司 CNG (Compressed Natural Gas) inflation valve conversion joint
CN112728260B (en) * 2020-12-23 2023-01-10 安徽环宇公路沥青材料有限责任公司 Connecting piece for asphalt conveying pipeline capable of being installed quickly

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