JP2004238027A - Valve mechanism - Google Patents

Valve mechanism Download PDF

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Publication number
JP2004238027A
JP2004238027A JP2003028589A JP2003028589A JP2004238027A JP 2004238027 A JP2004238027 A JP 2004238027A JP 2003028589 A JP2003028589 A JP 2003028589A JP 2003028589 A JP2003028589 A JP 2003028589A JP 2004238027 A JP2004238027 A JP 2004238027A
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valve
opening
valve seat
valve mechanism
fluid
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JP2003028589A
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JP4331952B2 (en
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Katsutoshi Masuda
勝利 増田
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Priority to JP2003028589A priority Critical patent/JP4331952B2/en
Priority to US10/619,205 priority patent/US7249694B2/en
Priority to EP03447191A priority patent/EP1384676A3/en
Priority to CNB031331238A priority patent/CN100515874C/en
Priority to KR1020030051831A priority patent/KR20040010412A/en
Publication of JP2004238027A publication Critical patent/JP2004238027A/en
Priority to US11/781,758 priority patent/US20080041890A1/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a valve mechanism capable of surely closing a fluid while it has a simple constitution and arbitrarily change a flow rate of the fluid passing through it in accordance with a pressure applied to it. <P>SOLUTION: The valve mechanism 10 is composed of a valve member 20 provided with a valve disc 21, a connecting part 22 and a guide part 23, a valve seat member 30 provided with a valve seat part 31, a valve member supporting part 32, and four flexible connecting parts 33 for connecting the valve seat part 31 with the valve member supporting part 32, and a supporting body 40 provided with an opening part 45 and four ribs 41 for forming a guide path 42 of the guide part 23 in the opening part 45. When a pressure is applied on a fluid body in a fluid body storing part, the valve disc 21 is moved to an open position for opening an opening part 38. On the other hand, when the pressure to the fluid body storing part is released, the valve disc 21 is moved to a closing position for closing the opening part 41 by an elastic restoring force of the four connecting parts 33. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
この発明は、弁機構に関し、特に流動体容器に好適に使用し得る弁機構に関する。
【０００２】
【従来の技術】
このような弁機構としては、例えば特許文献１に記載されたように、球体の弁体とこの弁体を弁座に向けて付勢するためのバネとを有するものが使用されている。
【０００３】
【特許文献１】特開２００１−１７９１３９号
【０００４】
しかしながら、このような球状の弁体とバネとを使用した弁機構は、その制作コストが高額となりやすい。このため、樹脂製の弁座と、当該弁座と当接する閉鎖位置と当該弁座から離隔した開放位置との間を移動する樹脂製の弁体とを有する弁機構が一般的に使用されている。
【０００５】
【発明が解決しようとする課題】
このような樹脂製の弁機構においては、簡易な構成でありながら、流動体を確実に閉鎖しうる構成とすることが好ましい。また、流動体に付与された圧力に応じて、そこを通過する流動体の流量を任意に変更しうる構成とすることが好ましい。しかしながら、このような要件を兼ね備えた弁機構は未だ提供されていないというのが実情である。
【０００６】
この発明は上記課題を解決するためになされたものであり、簡易な構成でありながら流体を確実に閉鎖することができ、また、そこに付与された圧力に応じてそこを通過する流体の流量を任意に変更することが可能な弁機構を提供することを目的とする。
【０００７】
【課題を解決するための手段】
請求項１に記載の発明は、弁体と、弁体に立設された結合部と、弁体における前記結合部とは逆側に立設された案内部とを備える弁部材と、前記弁体の弁座として機能する円形の開口部を有する弁座部と、前記結合部と結合する弁部材支持部と、前記弁座部と前記弁部材支持部とを連結する複数の可撓性を有する連結部とを備える弁座部材と、流動体流出用の開口部と、前記案内部を案内する案内部材とを備える支持体とを備え、前記複数の連結部の可撓性により、前記弁部材が、当該弁部材における前記弁大が前記弁座部材における開口部を閉鎖する閉鎖位置と、前記開口部を開放する開放位置との間を移動可能に構成される。
【０００８】
請求項２に記載の発明は、請求項１に記載の弁機構において、前記案内部材は、前記開口部に設けられ、前記案内部の外周面に当接する複数のリブから構成される。
【０００９】
請求項３に記載の発明は、請求項１または請求項２に記載の弁機構において、前記弁座部は、前記弁部材が前記閉鎖位置に配置された状態において、前記弁体の下面と端面とに当接する。
【００１０】
請求項４に記載の発明は、請求項１乃至請求項３に記載の弁機構において、前記弁座部材は、３個以上の連結部を有する。
【００１１】
請求項５に記載の発明は、請求項１乃至請求項４に記載の弁機構において、前記連結部は、屈曲部を有する。
【００１２】
【発明の実施の形態】
以下、この発明の実施の形態を図面に基づいて説明する。図１はこの発明に係る弁機構を適用するチューブ型容器を分解して示す説明図であり、図２、図３はこの発明に係る弁機構を適用するチューブ型容器の要部を示す拡大図である。
【００１３】
このチューブ型容器は、美容の分野で使用されるヘアージェルやクレンジングジェル等の、一般にジェルと呼称されるゲル（ｇｅｌ）、あるいは、栄養クリームやマッサージクリーム等のクリーム状物の容器として使用されるものである。なお、このチューブ型容器を、一般の薬品や溶剤あるいは食品等の容器として使用してもよい。
【００１４】
この明細書においては、通常の液体と高粘度の液体や半流動体あるいはゾルがジェリー状に固化したゲルやクリーム状物等とを含めて流動体と呼称する。但し、この発明は、上述した流動体を対象とした弁機構に限定されるものではなく、気体を含む流体全体を対象とした弁機構に適用しうるものである。
【００１５】
このチューブ型容器は、容器本体１４０と、容器本体１４０の上部に装着される蓋部材１１０と、弁機構１０とを備える。
【００１６】
前記容器本体１４０は、その内部に流動体を貯留するための流動体貯留部１４２と、この流動体貯留部１４２の一端に形成された流動体吐出用の開口部１４１と、開口部１４１の外側に形成された雄ネジ部１４４とを備える。雄ネジ部１４４は、後程詳細に説明する支持体４０における雌ネジ部４３と螺合可能となっている。このため、弁機構１０は、この雌ネジ部４３を介して容器本体１４０における開口部１４１内に固定される構成となっている。
【００１７】
この容器本体１４０は、合成樹脂単体または合成樹脂とアルミとを積層した構成を有し、そこに付与された押圧力が解除された際に元の形状に復帰しようとする弾性復元力を有する。
【００１８】
蓋部材１１０は、弁機構１０における支持体４０の開口部４２を閉鎖する位置と開放する位置とを移動可能となるように、支持体４０に蝶着されている。
【００１９】
以上のような構成を有するチューブ型容器において、容器内より流動体を吐出させる際には、容器本体１４０における流動体貯留部１４２を押圧することにより流動体貯留部１４２内の流動体に圧力を加える。この状態においては、弁部材２０弁座部材３０および支持体４０からなる弁機構１０が開放された状態となり、図３に示すように、流動体貯留部１４２内の流動体が弁機構１０における開口部４２を介して外部に吐出される。
【００２０】
一方、必要な量の流動体が吐出された後、流動体貯留部１４２への押圧力を解除すると、容器本体１４０の弾性復元力により流動体貯留部１４２内の流動体が減圧され、流動体吐出用の開口部１４１から流動体貯留部１４２に向けて空気が逆流しようとする。
【００２１】
しかしながら、このチューブ型容器においては、弁部材２０、弁座部材３０および支持体４０からなる弁機構１０の作用により、流動体の流通路が閉鎖される。このため、空気の逆流を効果的に防止することが可能となる。
【００２２】
次に、この発明に係る弁機構１０の構成について説明する。図４（ａ）はこの発明に係る弁機構１０を示す平面図であり、図４（ｂ）は図４（ａ）におけるＡ−Ａ断面を示す縦断面図である。なお、図１に示すように、弁機構１０は、弁部材２０、弁座部材３０および支持体４０から構成される。
【００２３】
図５（ａ）はこの発明に係る弁機構１０を構成する弁部材２０を示す平面図であり、図５（ｂ）はそのＡ−Ａ断面を示す縦断面図である。
【００２４】
弁部材２０は、図５に示すように、弁体２１と、弁体に立設された略円柱状の結合部２２と、弁体２１における結合部２２とは逆側に立設された略円柱状の案内部２３とを備える。
【００２５】
図６（ａ）はこの発明に係る弁機構１０を構成する弁座部材３０を示す平面図であり、図６（ｂ）はそのＢ−Ｂ断面を示す縦断面図である。
【００２６】
弁座部材３０は、図６に示すように、弁部材２０における弁体２１の弁座として機能する円形の開口部３８を有する弁座部３１と、弁部材２０における結合部２２と結合する弁部材支持部３２と、弁座部３１と弁部材支持部３２とを連結する４個の可撓性を有する連結部３３とを備える。
【００２７】
また、弁座部材３０の外周面には、凸部３７が形成されている。このため、この凸部３７が、後述する支持体４０の内周面に形成される凹部４４と係合することにより、弁座部材３０は支持体４０に対して固定される。さらに、弁座部材３０における弁部材支持部３２には、溝部３９が形成されている。この溝部３９に、弁部材２０における結合部２２を挿嵌することにより、弁部材２０と弁座部材３０とが結合する。また、弁座部３１は、その開口部３８に、水平面３４と垂直面３５とを有する。弁部材２０が、弁座部材３０における開口部３８と閉鎖する閉鎖位置に配置されたとき、弁体２１の下面２４が弁座部３１の水平面３４と当接し、弁体２１の端面２５が弁座部３１の垂直面３５に当接することとなる。
【００２８】
なお、４個の連結部３３は各々２対の屈曲部３６を有する可撓性の樹脂より構成される。この連結部３３の可撓性により、弁部材２０における弁体２１が、弁座部材３０における開口部３８を閉鎖する閉鎖位置と開口部３８を開放する開放位置との間で移動可能となっている。
【００２９】
図７（ａ）はこの発明に係る弁機構１０を構成する支持体４０を示す平面図であり、図７（ｂ）はそのＣ−Ｃ断面を示す縦断面図である。
【００３０】
支持体４０は、上述した開口部３８を通過した流動体を外部に流出させるための開口部４５と、開口部４５に設けらる４個のリブ４１とを備える。４個のリブは、開口部４５内に等間隔に設けられ、案内路４２を形成する。
【００３１】
支持体４０は、その内部に円筒形状の中空部が形成される。さらに、支持体４０は、この中空部内に、容器本体１４０における雄ネジ部１４４と螺合可能な雌ネジ部４３と、弁座部材３０における凸部３７と係合可能な凹部４４（図４参照）とを備える。このため、弁部材２０と結合した弁座部材３０を支持体４０内に挿入することにより、弁部材２０と、弁座部材３０と、支持体４０とが結合する。このとき、弁部材２０における案内部２３は、４個のリブ４１に囲まれた案内路４２に挿入された状態で結合することとなる。
【００３２】
このようにして結合した弁機構１０は、支持体４０における雌ネジ部４３と容器本体１４０に形成された雄ネジ部１４４とが螺合され、結合することにより、容器本体１４０における開口部１４１内に固定される。
【００３３】
なお、これらの弁部材２０、連結部材３０および弁座部材４０は、ポリエチレン等の合成樹脂、シリコンゴム等のゴム、またはゴム成分を含む合成樹脂等を材料とした射出成形等により生産される。
【００３４】
このような構成を有する弁機構１０において、図１に示す容器本体１４０を押圧することにより流動体貯留部１４２内の流動体に圧力を加えた場合には、図３に示すように、弁部材２０における弁体２１が弁座部材３０における開口部３８を開放する開放位置に移動する。これにより、流動体が開口部４１を通過する。一方、流動体貯留部１４２への押圧力を解除すると、４個の連結部３３の弾性復元力により、弁部材２０における弁体２１が弁座部材４０における開口部４１を閉鎖する閉鎖位置に移動する。これにより、開口部４１から流動体貯留部１４２への空気の侵入を防止することができる。
【００３５】
そして、この弁機構１０においては、流動体貯留部１４２への押圧力、すなわち弁機構１０に付与された圧力に応じて弁体２１の移動量が変化し、開口部４１を通過する流動体の流量を任意に変更することが可能となる。従って、流動体として通常の液体を使用した場合、流動体貯留部１４２内の液体に小さな圧力を付与することにより、この液体を一滴ずつ吐出されることも可能となる。また、弁座部３１は、その開口部３８に水平面３４と垂直面３５とを有するため、弁機構１０に付与された圧力に応じて弁体２１が移動し、弁体２１の下面２４が弁座部３１の水平面３４と当接しない状態となっても、弁体２１の端面２５が弁座部３１の垂直面３５に当接する間は、流動体を通過させることはない。このため、流動体貯留部１４２に対してある一定以上の押圧力を付与しない限り、開口部３８からの流動体の漏れを防止することが可能となる。
【００３６】
この弁機構１０においては、連結部材３０における弁座部材支持部３１と弁部材支持部３３とは、４個の連結部３３により連結される。このため、弁体２１に生じる不適切な傾きの発生を防止することが可能となる。なお、弁体２１に生じる不適切な傾きの発生を有効に防止するためには、連結部３３は３個以上とすることが好ましく、また、それらを均等に配置することが好ましい。
【００３７】
また、この弁機構１０においては、弁体２１が閉鎖位置と開放位置との間を移動する際に、案内部２３は４個のリブ４１に囲まれた案内路４２に挿入された状態で移動する。このため、弁体２１に不適切な傾きが発生した場合には、案内部２３がリブ４１と当接することになる。従って、弁体２１がそれ以上傾斜することはない。
【００３８】
さらに、この弁機構１０においては、弁座部材３０における４個の連結部３３は、各々、２対の屈曲部３６を有している。このため、これらの連結部３３が適当な弾性を持つことになり、弁部材２０における弁体２１が閉鎖位置と開放位置との間をスムースに往復移動することが可能となる。
【００３９】
なお、この連結部３３の厚みは、１ｍｍ以下とすることが好ましく、０．３ｍｍ〜０．５ｍｍとすることがより好ましい。また、この連結部３３の厚さや上下方向の長さ、あるいは、その材質（硬度）を変更することにより、流動体貯留部１４２内の流動体に付与される圧力と流動体の吐出量との関係を調整するようにしてもよい。また、この連結部３３の支持部１１側の端部の厚さや幅を変更することにより連結部３３による弾性力を変更し、これにより流動体貯留部１４２内の流動体に付与される圧力と流動体の吐出量との関係を調整するようにしてもよい。さらに、弁体２１の厚さを変更することにより、流動体貯留部１４２への押圧力と弁体２１の移動量および流動体の吐出量との関係を調整することとしてもよい。
【００４０】
図８は、この発明に係る弁機構１０を構成する弁部材２０における弁体２１の端面２５の周上に溝部２６を設けた実施形態を示す側面図であり、図９は、図８に示す弁部材２０にＯリング２７を組み合せた実施形態を示す側面図である。図８に示すように、弁部材２０における弁体２１の端面２５が、弁座部材３０における垂直面３５と、２箇所で当接する構造を有することから、より液密性を高めることができる。また、図９に示すように、弁部材２０における弁体２１の端面２５に組み合わされたＯリング２７の弾力性により、弁機構１０の部品各々の加工精度が劣化した場合においても、弁体２１と弁座部材３０の内壁とを確実に接触させることができ、面同士の接触の場合に比べて、より高い液密状体を維持することが可能となる。
【００４１】
【発明の効果】
請求項１に記載の発明によれば、弁体と、弁体に立設された結合部と、弁体における前記結合部とは逆側に立設された案内部とを備える弁部材と、前記弁体の弁座として機能する円形の開口部を有する弁座部と、前記結合部と結合する弁部材支持部と、前記弁座部と前記弁部材支持部とを連結する複数の可撓性を有する連結部とを備える弁座部材と、流動体流出用の開口部と、前記案内部を案内する案内部材とを備える支持体とを備えることから、弁体が弁座部材における開口部を閉鎖する閉鎖位置と前記開口部を開放する開放位置との間を移動するときに、弁体に不適切な傾きが発生することを防止することが可能となる。このため、流動体の流出を確実に防止することが可能となる。
【００４２】
請求項２に記載の発明によれば、請求項１に記載の弁機構において、前記案内部材は、前記開口部に設けられ、前記案内部の外周面に当接する複数のリブから構成されることから、簡易な構成でありながら、弁体が弁座部材における開口部を閉鎖する閉鎖位置と前記開口部を開放する開放位置との間を移動するとき、弁体に不適切な傾きが発生することを防止することが可能となる。
【００４３】
請求項３に記載の発明によれば、請求項１または請求項２に記載の弁機構において、前記弁座部は、前記弁部材が前記閉鎖位置に配置された状態において、前記弁体の下面と、端面とに当接することから、弁体の端面が弁座部の垂直面に当接する間は、流動体を通過させることはない。このため、流動体貯留部に対してある一定以上の押圧力を付与しない限り、開口部からの流動体の漏れを防止することが可能となる。
【００４４】
請求項４に記載の発明によれば、請求項１乃至請求項３に記載の弁機構において、前記弁座部材は、３個以上の連結部を有することから、弁体に生じる不適切な傾きの発生を防止することが可能となる。
【００４５】
請求項５に記載の発明によれば、請求項１乃至請求項４に記載の弁機構において、前記連結部は、屈曲部を有することから、連結部が適当な弾性を持つことになり、弁部材における弁体が閉鎖位置と開放位置との間をスムースに往復移動することが可能となる。
【図面の簡単な説明】
【図１】この発明に係る弁機構を適用するチューブ型容器を分解して示す説明図である。
【図２】この発明に係る弁機構を適用するチューブ型容器の要部を示す拡大図である。
【図３】この発明に係る弁機構を適用するチューブ型容器の要部を示す拡大図である。
【図４】この発明に係る弁機構１０を示す平面図（ａ）、および、（ａ）におけるＡ−Ａ断面を示す縦断面図（ｂ）である。
【図５】この発明に係る弁機構１０を構成する弁部材２０を示す平面図（ａ）、この発明に係る弁機構１０を構成する弁部材２０を示す縦断面図（ｂ）である。
【図６】この発明に係る弁機構１０を構成する弁座部材３０を示す平面図（ａ）、および、（ａ）におけるＢ−Ｂ断面を示す縦断面図（ｂ）である。
【図７】この発明に係る弁機構１０を構成する支持体４０を示す平面図（ａ）、および、（ａ）におけるＣ−Ｃ断面を示す縦断面図（ｂ）である。
【図８】この発明に係る弁機構１０を構成する弁部材２０における弁体２１の端面２５の周上に溝部２６を設けた実施形態を示す側面図である。
【図９】図８に示す弁部材２０にＯリング２７を組み合せた実施形態を示す側面図である。
【符号の説明】
１０ 弁機構
２０ 弁部材
２１ 弁体
２２ 結合部
２３ 案内部
２４ 下面
２５ 端面
２６ 溝部
２７ Ｏリング
３０ 弁座部材
３１ 弁座部
３２ 弁部材支持部
３３ 連結部
３４ 水平面
３５ 垂直面
３６ 屈曲部
３７ 凸部
３８ 開口部
３９ 溝部
４０ 支持体
４１ リブ
４２ 案内路
４３ 雌ネジ部
４４ 凹部
４５ 開口部
１１０ 蓋部材
１４０ 容器本体
１４１ 開口部
１４２ 流動体貯留部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a valve mechanism, and more particularly to a valve mechanism that can be suitably used for a fluid container.
[0002]
[Prior art]
As such a valve mechanism, a mechanism having a spherical valve body and a spring for urging the valve body toward a valve seat is used, as described in Patent Document 1, for example.
[0003]
[Patent Document 1] Japanese Patent Application Laid-Open No. 2001-179139
However, such a valve mechanism using a spherical valve element and a spring tends to be expensive to produce. For this reason, a valve mechanism having a resin valve seat and a resin valve body that moves between a closed position in contact with the valve seat and an open position separated from the valve seat is generally used. I have.
[0005]
[Problems to be solved by the invention]
In such a valve mechanism made of resin, it is preferable that the valve mechanism has a simple configuration, but can reliably close the fluid. Further, it is preferable that the flow rate of the fluid passing therethrough can be arbitrarily changed according to the pressure applied to the fluid. However, the fact is that a valve mechanism having such requirements has not been provided yet.
[0006]
The present invention has been made to solve the above-described problem, and can reliably close a fluid with a simple configuration, and furthermore, a flow rate of a fluid passing therethrough according to a pressure applied thereto. It is an object of the present invention to provide a valve mechanism capable of arbitrarily changing the pressure.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is a valve member including a valve body, a connecting portion provided upright on the valve body, and a guide portion provided upright on the valve body on a side opposite to the connecting portion; A valve seat having a circular opening functioning as a valve seat of a body, a valve member supporting portion to be connected to the connecting portion, and a plurality of flexible members connecting the valve seat to the valve member supporting portion. A valve seat member having a connecting portion having the same, an opening portion for fluid outflow, and a support having a guide member for guiding the guide portion, and the flexibility of the plurality of connecting portions makes the valve A member is configured to be movable between a closed position in which the valve size of the valve member closes an opening in the valve seat member and an open position in which the opening is opened.
[0008]
According to a second aspect of the present invention, in the valve mechanism according to the first aspect, the guide member includes a plurality of ribs provided in the opening and in contact with an outer peripheral surface of the guide.
[0009]
According to a third aspect of the present invention, in the valve mechanism according to the first or second aspect, the valve seat includes a lower surface and an end surface of the valve body in a state where the valve member is disposed in the closed position. And abut.
[0010]
According to a fourth aspect of the present invention, in the valve mechanism according to any one of the first to third aspects, the valve seat member has three or more connecting portions.
[0011]
According to a fifth aspect of the present invention, in the valve mechanism according to any one of the first to fourth aspects, the connecting portion has a bent portion.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an exploded view showing a tube type container to which a valve mechanism according to the present invention is applied, and FIGS. 2 and 3 are enlarged views showing main parts of a tube type container to which a valve mechanism according to the present invention is applied. It is.
[0013]
This tube-shaped container is used as a container of a gel generally called a gel, such as a hair gel or a cleansing gel used in the field of beauty, or a cream-like material such as a nourishing cream or a massage cream. Things. The tube-shaped container may be used as a container for general chemicals, solvents, foods, and the like.
[0014]
In this specification, the term "fluid" includes ordinary liquids, high-viscosity liquids, semi-fluids, and gels and creams in which a sol is solidified in a jelly state. However, the present invention is not limited to the above-described valve mechanism for a fluid, but can be applied to a valve mechanism for an entire fluid including a gas.
[0015]
This tube-shaped container includes a container body 140, a lid member 110 mounted on an upper portion of the container body 140, and the valve mechanism 10.
[0016]
The container body 140 includes a fluid storage portion 142 for storing a fluid therein, an opening 141 for discharging the fluid formed at one end of the fluid storage portion 142, and an outside of the opening 141. And a male screw part 144 formed on the base member. The male screw part 144 can be screwed with the female screw part 43 of the support body 40 described in detail later. For this reason, the valve mechanism 10 is configured to be fixed in the opening 141 of the container body 140 via the female screw portion 43.
[0017]
The container body 140 has a structure in which a synthetic resin alone or a laminate of a synthetic resin and aluminum is provided, and has an elastic restoring force for returning to an original shape when the pressing force applied thereto is released.
[0018]
The lid member 110 is hinged to the support 40 so as to be movable between a position at which the opening 42 of the support 40 in the valve mechanism 10 is closed and an open position.
[0019]
In the tube-shaped container having the above configuration, when discharging the fluid from the inside of the container, the fluid in the fluid storage portion 142 is pressed by pressing the fluid storage portion 142 in the container body 140. Add. In this state, the valve mechanism 10 including the valve member 20, the valve seat member 30, and the support body 40 is in an open state, and as shown in FIG. It is discharged to the outside via the part 42.
[0020]
On the other hand, after the required amount of fluid is discharged, when the pressing force on the fluid storage part 142 is released, the fluid in the fluid storage part 142 is decompressed by the elastic restoring force of the container body 140, and the fluid The air tends to flow backward from the discharge opening 141 toward the fluid reservoir 142.
[0021]
However, in this tubular container, the flow passage of the fluid is closed by the action of the valve mechanism 10 including the valve member 20, the valve seat member 30, and the support 40. Therefore, it is possible to effectively prevent the backflow of air.
[0022]
Next, the configuration of the valve mechanism 10 according to the present invention will be described. FIG. 4A is a plan view showing the valve mechanism 10 according to the present invention, and FIG. 4B is a longitudinal sectional view showing an AA section in FIG. 4A. As shown in FIG. 1, the valve mechanism 10 includes a valve member 20, a valve seat member 30, and a support 40.
[0023]
FIG. 5A is a plan view showing a valve member 20 constituting the valve mechanism 10 according to the present invention, and FIG. 5B is a longitudinal sectional view showing an AA section thereof.
[0024]
As shown in FIG. 5, the valve member 20 includes a valve body 21, a substantially cylindrical connecting portion 22 erected on the valve body, and a substantially erected member on the opposite side to the connecting portion 22 of the valve body 21. And a cylindrical guide portion 23.
[0025]
FIG. 6A is a plan view showing a valve seat member 30 constituting the valve mechanism 10 according to the present invention, and FIG. 6B is a longitudinal sectional view showing a BB section thereof.
[0026]
As shown in FIG. 6, the valve seat member 30 has a valve seat portion 31 having a circular opening 38 functioning as a valve seat of the valve body 21 in the valve member 20, and a valve connected to the connecting portion 22 in the valve member 20. A member support portion 32 and four flexible connecting portions 33 connecting the valve seat portion 31 and the valve member support portion 32 are provided.
[0027]
A convex portion 37 is formed on the outer peripheral surface of the valve seat member 30. Therefore, the valve seat member 30 is fixed to the support 40 by the engagement of the protrusions 37 with the recesses 44 formed on the inner peripheral surface of the support 40 described later. Further, a groove 39 is formed in the valve member support portion 32 of the valve seat member 30. By inserting the coupling portion 22 of the valve member 20 into the groove 39, the valve member 20 and the valve seat member 30 are coupled. The valve seat 31 has a horizontal surface 34 and a vertical surface 35 in the opening 38. When the valve member 20 is disposed in a closed position that closes the opening 38 in the valve seat member 30, the lower surface 24 of the valve body 21 contacts the horizontal surface 34 of the valve seat portion 31, and the end face 25 of the valve body 21 It comes into contact with the vertical surface 35 of the seat portion 31.
[0028]
The four connecting portions 33 are each made of a flexible resin having two pairs of bent portions 36. Due to the flexibility of the connecting portion 33, the valve element 21 of the valve member 20 can be moved between a closed position for closing the opening 38 of the valve seat member 30 and an open position for opening the opening 38. I have.
[0029]
FIG. 7 (a) is a plan view showing a support 40 constituting the valve mechanism 10 according to the present invention, and FIG. 7 (b) is a longitudinal sectional view showing a CC section thereof.
[0030]
The support 40 includes an opening 45 for allowing the fluid that has passed through the opening 38 to flow out to the outside, and four ribs 41 provided in the opening 45. The four ribs are provided at equal intervals in the opening 45 to form the guide path 42.
[0031]
The support 40 has a cylindrical hollow portion formed therein. Further, the support body 40 has a female screw portion 43 capable of being screwed with the male screw portion 144 of the container body 140 and a concave portion 44 capable of engaging with the convex portion 37 of the valve seat member 30 (see FIG. 4). ). Therefore, by inserting the valve seat member 30 coupled to the valve member 20 into the support 40, the valve member 20, the valve seat member 30, and the support 40 are coupled. At this time, the guide portion 23 of the valve member 20 is connected while being inserted into the guide path 42 surrounded by the four ribs 41.
[0032]
In the valve mechanism 10 thus combined, the female screw portion 43 of the support 40 and the male screw portion 144 formed on the container body 140 are screwed and connected to each other, so that the inside of the opening 141 of the container body 140 is formed. Fixed to.
[0033]
The valve member 20, the connecting member 30, and the valve seat member 40 are produced by injection molding using a synthetic resin such as polyethylene, rubber such as silicone rubber, or a synthetic resin containing a rubber component.
[0034]
In the valve mechanism 10 having such a configuration, when pressure is applied to the fluid in the fluid storage part 142 by pressing the container body 140 shown in FIG. 1, as shown in FIG. The valve element 21 at 20 moves to the open position to open the opening 38 in the valve seat member 30. Thereby, the fluid passes through the opening 41. On the other hand, when the pressing force on the fluid storage portion 142 is released, the valve body 21 of the valve member 20 moves to the closed position for closing the opening 41 of the valve seat member 40 due to the elastic restoring force of the four connecting portions 33. I do. Accordingly, it is possible to prevent air from entering the fluid storage part 142 from the opening 41.
[0035]
In the valve mechanism 10, the amount of movement of the valve body 21 changes according to the pressing force applied to the fluid storage section 142, that is, the pressure applied to the valve mechanism 10, and the flow amount of the fluid passing through the opening 41 changes. It is possible to arbitrarily change the flow rate. Therefore, when a normal liquid is used as the fluid, by applying a small pressure to the liquid in the fluid storage unit 142, it is possible to discharge the liquid one by one. Further, since the valve seat portion 31 has the horizontal surface 34 and the vertical surface 35 in the opening 38, the valve element 21 moves according to the pressure applied to the valve mechanism 10, and the lower surface 24 of the valve element 21 Even if the end face 25 of the valve body 21 is in contact with the vertical surface 35 of the valve seat 31, even if the end face 25 of the valve body 21 is not in contact with the horizontal surface 34 of the seat 31, the fluid does not pass through. For this reason, unless the pressing force of a certain level or more is applied to the fluid storage part 142, it is possible to prevent the fluid from leaking from the opening 38.
[0036]
In this valve mechanism 10, the valve seat member support portion 31 and the valve member support portion 33 of the connection member 30 are connected by four connection portions 33. For this reason, it is possible to prevent the occurrence of inappropriate inclination occurring in the valve body 21. Note that, in order to effectively prevent the occurrence of an inappropriate inclination that occurs in the valve body 21, it is preferable that the number of the connection portions 33 is three or more, and it is preferable that the connection portions 33 are evenly arranged.
[0037]
In the valve mechanism 10, when the valve element 21 moves between the closed position and the open position, the guide portion 23 moves while being inserted into the guide path 42 surrounded by the four ribs 41. I do. For this reason, when an inappropriate inclination occurs in the valve element 21, the guide portion 23 comes into contact with the rib 41. Therefore, the valve body 21 does not further tilt.
[0038]
Further, in the valve mechanism 10, each of the four connecting portions 33 of the valve seat member 30 has two pairs of bent portions 36. Therefore, these connecting portions 33 have appropriate elasticity, and the valve element 21 of the valve member 20 can smoothly reciprocate between the closed position and the open position.
[0039]
The thickness of the connecting portion 33 is preferably 1 mm or less, more preferably 0.3 mm to 0.5 mm. Further, by changing the thickness, the length in the vertical direction, or the material (hardness) of the connection portion 33, the pressure applied to the fluid in the fluid storage portion 142 and the discharge amount of the fluid are changed. The relationship may be adjusted. Also, by changing the thickness and width of the end of the connecting portion 33 on the support portion 11 side, the elastic force of the connecting portion 33 is changed, and thereby the pressure applied to the fluid in the fluid storage portion 142 is reduced. The relationship with the discharge amount of the fluid may be adjusted. Furthermore, by changing the thickness of the valve body 21, the relationship between the pressing force to the fluid storage part 142, the movement amount of the valve body 21, and the discharge amount of the fluid may be adjusted.
[0040]
FIG. 8 is a side view showing an embodiment in which a groove 26 is provided on the periphery of the end face 25 of the valve element 21 in the valve member 20 constituting the valve mechanism 10 according to the present invention, and FIG. 9 is shown in FIG. It is a side view which shows embodiment which combined O-ring 27 with the valve member 20. As shown in FIG. 8, since the end surface 25 of the valve element 21 in the valve member 20 has a structure in which the vertical surface 35 of the valve seat member 30 abuts at two places, liquid tightness can be further improved. As shown in FIG. 9, even when the processing accuracy of each component of the valve mechanism 10 is deteriorated due to the elasticity of the O-ring 27 combined with the end face 25 of the valve body 21 in the valve member 20, And the inner wall of the valve seat member 30 can be reliably brought into contact, and a higher liquid-tight body can be maintained as compared with the case where the surfaces are in contact with each other.
[0041]
【The invention's effect】
According to the first aspect of the present invention, a valve member including a valve body, a connecting portion provided upright on the valve body, and a guide portion provided upright on the valve body on a side opposite to the connecting portion. A valve seat portion having a circular opening functioning as a valve seat of the valve body, a valve member support portion connected to the connection portion, and a plurality of flexible members connecting the valve seat portion and the valve member support portion. A valve seat member having a connecting portion having a characteristic, an opening for flowing out a fluid, and a support having a guide member for guiding the guide portion, so that the valve body has an opening in the valve seat member. When moving between the closed position for closing the valve and the open position for opening the opening, it is possible to prevent the occurrence of inappropriate inclination of the valve body. Therefore, it is possible to reliably prevent the outflow of the fluid.
[0042]
According to the second aspect of the present invention, in the valve mechanism according to the first aspect, the guide member includes a plurality of ribs provided in the opening and abutting on an outer peripheral surface of the guide. Thus, when the valve body moves between the closed position for closing the opening in the valve seat member and the open position for opening the opening, an inappropriate inclination occurs in the valve body with a simple configuration. Can be prevented.
[0043]
According to the third aspect of the present invention, in the valve mechanism according to the first or second aspect, the valve seat portion has a lower surface of the valve body in a state where the valve member is disposed in the closed position. As a result, the fluid does not pass through while the end face of the valve body contacts the vertical face of the valve seat. For this reason, unless the pressing force of a certain level or more is applied to the fluid storage part, it is possible to prevent the fluid from leaking from the opening.
[0044]
According to the fourth aspect of the present invention, in the valve mechanism according to any one of the first to third aspects, since the valve seat member has three or more connecting portions, an inappropriate inclination generated in the valve body. Can be prevented from occurring.
[0045]
According to the fifth aspect of the present invention, in the valve mechanism according to any one of the first to fourth aspects, since the connecting portion has a bent portion, the connecting portion has an appropriate elasticity. The valve body of the member can smoothly reciprocate between the closed position and the open position.
[Brief description of the drawings]
FIG. 1 is an exploded view showing a tube type container to which a valve mechanism according to the present invention is applied.
FIG. 2 is an enlarged view showing a main part of a tube type container to which the valve mechanism according to the present invention is applied.
FIG. 3 is an enlarged view showing a main part of a tube type container to which the valve mechanism according to the present invention is applied.
FIG. 4 is a plan view (a) showing the valve mechanism 10 according to the present invention, and a longitudinal sectional view (b) showing an AA section in (a).
FIG. 5 is a plan view (a) showing a valve member 20 constituting the valve mechanism 10 according to the present invention, and a longitudinal sectional view (b) showing the valve member 20 constituting the valve mechanism 10 according to the present invention.
6A is a plan view showing a valve seat member 30 constituting the valve mechanism 10 according to the present invention, and FIG. 6B is a longitudinal sectional view showing a BB section in FIG.
FIGS. 7A and 7B are a plan view showing a support body 40 constituting the valve mechanism 10 according to the present invention, and a longitudinal sectional view showing a CC section in FIG.
FIG. 8 is a side view showing an embodiment in which a groove 26 is provided on a periphery of an end face 25 of a valve body 21 in a valve member 20 constituting the valve mechanism 10 according to the present invention.
9 is a side view showing an embodiment in which an O-ring 27 is combined with the valve member 20 shown in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Valve mechanism 20 Valve member 21 Valve element 22 Joining part 23 Guide part 24 Lower surface 25 End surface 26 Groove part 27 O-ring 30 Valve seat member 31 Valve seat part 32 Valve member support part 33 Connecting part 34 Horizontal plane 35 Vertical plane 36 Bending part 37 Convex Portion 38 Opening 39 Groove 40 Support 41 Rib 42 Guideway 43 Female thread 44 Concave 45 Opening 110 Cover member 140 Container body 141 Opening 142 Fluid reservoir

Claims (5)

弁体と、弁体に立設された結合部と、弁体における前記結合部とは逆側に立設された案内部とを備える弁部材と、
前記弁体の弁座として機能する円形の開口部を有する弁座部と、前記結合部と結合する弁部材支持部と、前記弁座部と前記弁部材支持部とを連結する複数の可撓性を有する連結部とを備える弁座部材と、
流動体流出用の開口部と、前記案内部を案内する案内部材とを備える支持体と、を備え、
前記複数の連結部の可撓性により、前記弁部材が、当該弁部材における前記弁体が前記弁座部材における開口部を閉鎖する閉鎖位置と、前記開口部を開放する開放位置との間を移動可能に構成されることを特徴とする弁機構。A valve element, a coupling member provided upright on the valve element, and a valve member including a guide portion provided upright on the opposite side of the coupling section in the valve element;
A valve seat portion having a circular opening functioning as a valve seat of the valve body, a valve member support portion connected to the connection portion, and a plurality of flexible members connecting the valve seat portion and the valve member support portion. A valve seat member including a connecting portion having a property,
An opening for fluid outflow, and a support having a guide member for guiding the guide,
Due to the flexibility of the plurality of connecting portions, the valve member moves between a closed position in which the valve element in the valve member closes an opening in the valve seat member and an open position in which the opening is opened. A valve mechanism that is configured to be movable. 請求項１に記載の弁機構において、
前記案内部材は、前記開口部に設けられ、前記案内部の外周面に当接する複数のリブから構成される弁機構。The valve mechanism according to claim 1,
A valve mechanism, wherein the guide member is provided in the opening and includes a plurality of ribs abutting on an outer peripheral surface of the guide. 請求項１または請求項２に記載の弁機構において、
前記弁座部は、前記弁部材が前記閉鎖位置に配置された状態において、前記弁体の下面と端面とに当接する弁機構。In the valve mechanism according to claim 1 or 2,
The valve mechanism, wherein the valve seat portion is in contact with a lower surface and an end surface of the valve body when the valve member is disposed at the closed position. 請求項１乃至請求項３に記載の弁機構において、
前記弁座部材は、３個以上の連結部を有する弁機構。The valve mechanism according to any one of claims 1 to 3,
The valve mechanism, wherein the valve seat member has three or more connecting portions. 請求項１乃至請求項４に記載の弁機構において、
前記連結部は、屈曲部を有する弁機構。In the valve mechanism according to any one of claims 1 to 4,
A valve mechanism, wherein the connecting portion has a bent portion.
JP2003028589A 2002-07-26 2003-02-05 Valve mechanism Expired - Fee Related JP4331952B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2003028589A JP4331952B2 (en) 2003-02-05 2003-02-05 Valve mechanism
US10/619,205 US7249694B2 (en) 2002-07-26 2003-07-14 Valve mechanism for tube-type fluid container
EP03447191A EP1384676A3 (en) 2002-07-26 2003-07-18 Valve mechanism for tube-type fluid container
CNB031331238A CN100515874C (en) 2002-07-26 2003-07-24 Valve mechanism for tube-type fluid container
KR1020030051831A KR20040010412A (en) 2002-07-26 2003-07-26 Valve mechanism for tube-type fluid container
US11/781,758 US20080041890A1 (en) 2002-07-26 2007-07-23 Valve mechanism for tube-type fluid container

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008030849A (en) * 2006-07-31 2008-02-14 Kyoraku Co Ltd Dispensing amount adjusting cap
GB2465843A (en) * 2008-12-08 2010-06-09 Bodypak Closures Ltd Closure valve for a container
KR101044637B1 (en) 2008-11-28 2011-06-29 김봉식 Bottle cap
JP2013049432A (en) * 2011-08-30 2013-03-14 Japan Crown Cork Co Ltd Spouting tool with check valve, and cap therefor
JP2013060222A (en) * 2011-09-14 2013-04-04 Tatsue Seiko Kk Check valve and container using the same
JP2017030844A (en) * 2015-08-06 2017-02-09 三笠産業株式会社 cap
JP2017214110A (en) * 2016-05-31 2017-12-07 株式会社吉野工業所 Discharge container
JP2021527009A (en) * 2018-06-12 2021-10-11 ズェンブロッド エリックＺＥＭＢＲＯＤ， Ｅｒｉｃ Air-free dispenser for applicator nozzles for various types of flexible packaging

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008030849A (en) * 2006-07-31 2008-02-14 Kyoraku Co Ltd Dispensing amount adjusting cap
KR101044637B1 (en) 2008-11-28 2011-06-29 김봉식 Bottle cap
GB2465843A (en) * 2008-12-08 2010-06-09 Bodypak Closures Ltd Closure valve for a container
GB2465843B (en) * 2008-12-08 2011-02-23 Bodypak Closures Ltd Closure valve for a container
JP2013049432A (en) * 2011-08-30 2013-03-14 Japan Crown Cork Co Ltd Spouting tool with check valve, and cap therefor
JP2013060222A (en) * 2011-09-14 2013-04-04 Tatsue Seiko Kk Check valve and container using the same
JP2017030844A (en) * 2015-08-06 2017-02-09 三笠産業株式会社 cap
JP2017214110A (en) * 2016-05-31 2017-12-07 株式会社吉野工業所 Discharge container
JP2021527009A (en) * 2018-06-12 2021-10-11 ズェンブロッド エリックＺＥＭＢＲＯＤ， Ｅｒｉｃ Air-free dispenser for applicator nozzles for various types of flexible packaging
JP7297061B2 (en) 2018-06-12 2023-06-23 エリック ズェンブロッド Air entrainment-free dispensing device for applicator nozzles for various types of flexible packaging

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