JP2005014990A

JP2005014990A - Two-liquid storage and mixing container

Info

Publication number: JP2005014990A
Application number: JP2003183165A
Authority: JP
Inventors: Hiroaki Murata; 浩昭村田; Michio Kato; 道雄加藤
Original assignee: Yuka Denshi Co Ltd
Current assignee: Yuka Denshi Co Ltd
Priority date: 2003-06-26
Filing date: 2003-06-26
Publication date: 2005-01-20
Anticipated expiration: 2023-06-26
Also published as: JP4333233B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a two-liquid storage and mixing container which is capable of separately storing two kinds of liquid and mixing them inside the container when the container is unsealed, simple in assembly structure, and capable of mixing and taking out two kinds of liquid by an easy operation. <P>SOLUTION: The two-liquid storage and mixing container comprises a substantially two-staged cylindrical container body (1), a nozzle (2) fitted in a push-in manner, a first piece member (3) to seal a tip part of the container body (1), a second piece member (4) to seal a reduced portion of the inside diameter of the container body (1), and a sealing member (5) at a rear end of the container body (1). The first liquid is stored in a first half part (1a) of the container body (1) and the second liquid is stored in a second half part (1b). The first piece member (3) and the second piece member (4) are respectively unsealed at the tip part and the reduced portion in an interlocking manner with the nozzle by the push-in operation of the nozzle (2). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、二液収納混合容器に関するものであり、詳しくは、歯牙修復材料や各種の接着剤などの２種の液体を混合使用する場合に適用される容器であって、２種の液体を別個に収容し且つ開封の際にはこれらを内部で混合することが出来る二液収納混合容器に関するものである。
【０００２】
【従来の技術】
２種の材料、例えば粉体と液体とを別個に収容する容器は、歯牙修復材料の包装などに適用される。斯かる容器としては、例えば、先端側が幾分小径に形成され且つ内部に液体が充填される略円筒状の容器本体と、当該容器本体の先端側に一部挿入状態で装着され且つ内部に粉体が充填される略円筒状のカプセル（上部シリンジ部）とから構成された容器が知られている。斯かる容器において、カプセルは、容器本体に嵌め込まれる有底円筒状の外筒部と、下端が傾斜状態にカッティングされ且つ外筒部に上端側から挿入された円筒状の内筒部と、内筒部の上端に取り付けられた逆有底円筒状のキャップとから構成されており、使用する場合は、カプセルのノズル部を押し込み、外筒部に対して内筒部を押し下げることにより、その下端の尖鋭構造によって外筒部の下端を破断し、カプセル内部の粉体を容器本体の液体に混合し、そして、カプセルのキャップを取り外すことにより、容器本体内の粉体と液体の混合物を取り出す（特許文献１参照）。
【０００３】
【特許文献１】
国際公開第ＷＯ０２／３６０６５Ａ１号公報（Ｆｉｇ．１、Ｆｉｇ．２）
【０００４】
【発明が解決しようとする課題】
ところで、上記の容器は、外筒部および内筒部から成るカプセルのいわゆる二重管の部位を容器本体に嵌め込み、しかも、カプセルの外筒部を容器本体の先端側に溶着などによって強固に固定しなければならず、組立構造が極めて複雑である。また、上記の容器は、これを開封する場合、カプセルの外筒部を破断する操作、および、キャップを取り外す操作の２つの操作を行わなければならないため、素早く内容物を取り出すのに不都合がある。更に、カプセルの下端部が容器本体内部に配置されているため、内容物を取り出すのに容器本体を転倒させた場合、カプセル下端部と容器本体内周部との隙間に内容物が残留し、内容物の全てを取り出すことが出来ないと言う問題がある。
【０００５】
本発明は、粉体と液体の混合用の上記の様な容器の構造を２種の液体の収納混合に適用すべく種々検討の結果なされたものであり、その目的は、２種の液体を別個に収容し且つ開封の際にはこれらを内部で混合することが出来る二液収納混合容器であって、組立構造がより簡単であり、しかも、一層容易な操作で２種の液体を混合して取り出すことの出来る二液収納混合容器を提供することにある。
【０００６】
【課題を解決するための手段】
本発明は、２つの駒部材と後端の封止材とによって１つの容器本体内部を２室に仕切ることにより、容器本体に２種の液体を別個に収容する様にした。そして、容器本体の先端に装着したノズルの１回の操作により、これに連動させて容器本体内で２つの駒部材を移動させ、これにより、容器本体を開封し、しかも、容器本体内部が実質的に１室になる様にした。
【０００７】
すなわち、本発明の要旨は、２種の液体を別個に収容し且つ開封の際にはこれらを混合可能になされた二液収納混合容器であって、前半部が後半部よりも内径を小径になされた略２段円筒状の容器本体と、当該容器本体の先端に押込み可能に装着されたノズルと、当該ノズルの基端に略当接する状態で前記容器本体に挿入されて当該容器本体の先端部を封止する第１の駒部材と、当該第１の駒部材の後端に略当接する状態で前記容器本体に挿入されて当該容器本体の内径の絞り部を封止する第２の駒部材と、前記容器本体の後端に装着された封止材とから構成されることにより、前記容器本体の前半部に第１の液体を収容し且つ前記容器本体の後半部に第２の液体を収容する様になされ、そして、前記第１の駒部材および前記第２の駒部材は、前記ノズルの押込み操作により、当該ノズルに連動して前記容器本体の先端部および絞り部における封止をそれぞれ解除可能になされていることを特徴とする二液収納混合容器に存する。
【０００８】
【発明の実施の形態】
本発明に係る二液収納混合容器の一実施形態を図面に基づいて説明する。図１は、本発明に係る二液収納混合容器の内部構造を破断して示す斜視図である。図２は、本発明に係る二液収納混合容器の組立構造を展開して示す斜視図であり、図３は、本発明に係る二液収納混合容器の組立構造を展開して示す縦断面図である。図４は、本発明に係る二液収納混合容器の使用方法ならびに第１の駒部材と第２の駒部材の機能を示す縦断面図である。以下、実施形態の説明においては、二液収納混合容器を「容器」と略記する。
【０００９】
本発明の容器は、２種の液体を別個に収容し且つ使用の際にはこれらを混合可能になされた容器であり、混合して使用されるべき液体、例えば、各種の医薬品の他、歯牙修復用液体材料、手術補助剤などの医薬品外の液体物質、接着剤、充填剤などの医療用途以外の液体物質を包装する場合にも適用される。
【００１０】
本発明の容器は、通常は透明性の樹脂材料、典型的には耐薬品性および耐熱性に優れた環状ポリオレフィン、ポリプロピレン、ポリエチレン、ポリエチレンナフタレート等の樹脂材料によって形成される。また、光で変質または硬化する様な液体を収容する場合には、カーボンブラック等の遮光性材料が配合された樹脂材料によって形成される。
【００１１】
本発明の容器は、図１及び図２に示す様に、前半部（１ａ）が後半部（１ｂ）よりも内径を小径になされた略２段円筒状の柔軟な容器本体（１）と、当該容器本体の先端に押込み可能に装着されたノズル（２）と、当該ノズルの基端に略当接する状態で容器本体（１）に挿入されて容器本体（１）の先端部（１ｅ）を封止する第１の駒部材（３）と、当該第１の駒部材の後端に略当接する状態で容器本体（１）に挿入されて容器本体（１）の内径の絞り部（１ｆ）を封止する第２の駒部材（４）と、容器本体（１）の後端に装着された封止材（５）とから主に構成される。
【００１２】
容器本体（１）の内部は、図１及び図３に示す様に、前半部（１ａ）、すなわち、図中の容器本体（１）の略上半分の部分が小径に形成され、後半部（１ｂ）、すなわち、図中の容器本体（１）の略下半分の部分が大径に形成される。そして、容器本体（１）は、使用時に内容物を簡単に押し出すことが出来る様に、指先による加圧によって変形させ得る程度の柔軟性を備えている。
【００１３】
図３に示す様に、容器本体（１）の先端部（１ｅ）（図中の容器本体（１）の上端部）の内周面には、後述するノズル（２）の鍔（２１）が嵌合する円環状の鍔嵌合部（１１）と、ノズル（２）の基部が挿入される円環状のノズル挿通部（１２）と、後述する第１の駒部材（３）のシール部（３３）が嵌合する円環状の第１の縮径部（１３）とが容器本体（１）の先端側から順次に設けられる。上記の鍔嵌合部（１１）及び第１の縮径部（１３）の各内径は、ノズル挿通部（１２）の内径よりも大きな直径に設定される。
【００１４】
また、容器本体（１）の絞り部（１ｆ）、すなわち、前半部（１ａ）と後半部（１ｂ）の内径の切り替わり部分の内周面には、後述する第２の駒部材（４）のシール部（４４）が嵌合する円環状の第２の縮径部（１４）が設けられる。第２の縮径部（１４）は、容器本体（１）の前半部（１ａ）の内径よりも大きく且つ後半部（１ｂ）の内径よりも小さな直径に設定される。また、容器本体（１）の後端部（図中の容器本体（１）の下端部）は、後述する封止材（５）を気密に装着するため、容器本体（１）の胴部よりも僅かに厚肉に形成される。なお、歯牙修復材などに適用される場合、容器本体（１）の内容積は、３〜１２ｃｍ^３程度に設計される。
【００１５】
ノズル（２）は、図１に示す様に、容器本体（１）の先端部（１ｅ）に装着されるが、図２及び図３に示す様に、先端部（１ｅ）に挿入される基端側が略円筒状に形成され、容器本体（１）から突出する先端側が略円錐状に形成される。ノズル（２）の基端側の外径は、上記のノズル挿通部（１２）に嵌合する大きさに設計される。ノズル（２）の先端側は、容器を使用する際に内容物である液体を正確な位置に押し出すため、先端に向かうに従い漸次縮径された略円錐状に形成されており、そのテーパー角度（先端から視た場合の開き角度）は、３０〜６０°程度に設計される。
【００１６】
ノズル（２）の先端には、長さ２〜１６ｍｍの細管状の射出口（２３）が突設される。射出口（２３）の長さを上記の範囲に設定する理由は次の通りである。すなわち、射出口（２３）が１６ｍｍよりも長い場合は、内容物を断続的に押し出す様な使用態様において、液体の種類によっては射出口（２３）に滞留した内容物が内圧の変化で溢れ出すことがあるが、その溢れ量が多くなり実用上不都合を生じることがある。一方、射出口（２３）が２ｍｍよりも短い場合は、内容物をより細かな部位に塗布する際、射出口（２３）を目的の箇所に位置させることが出来ず、正確に塗布することが出来ないことがある。なお、歯牙修復材料に適用する場合、射出口（２３）の開口面積は０．１〜４ｍｍ^２程度に設計される。
【００１７】
また、射出口（２３）の内部に入り込んだ液体の表面張力によるノズル（２）先端部内面（射出口（２３）の直下）における液溜まりをより低減するため、射出口（２３）基端の直近のノズル（２）先端部内面の開き角度は６０°以上に設定されるのが好ましい。
【００１８】
更に、図２及び図３に示す様に、ノズル（２）先端の射出口（２３）の基部の周囲には、射出口（２３）から若干の液体が溢れ出した場合でも溢れた液体がノズル（２）に沿って容器本体（１）側へ垂れることのない様に、円環状の窪み（２４）が設けられる。すなわち、ノズル（２）の先端部は、円錐の頂点部を僅かに切り取った形状になされ且つその頂点部に上記の射出口（２３）が突設され、そして、射出口（２３）の周囲に液体捕捉用の上記の窪み（２４）が設けられた構造を有する。
【００１９】
また、図１に示す様に、ノズル（２）の長さ方向の中央の外周部には、容器本体（１）の上記の鍔嵌合部（１１）に嵌合する環状の鍔（２１）が張出される。鍔（２１）は、容器本体（１）の先端部（１ｅ）にノズル（２）を押し込んだ場合、鍔嵌合部（１１）と共に移動終端を規定するストッパーとして機能する。すなわち、ノズル（２）は、開封前は基端部が容器本体（１）の先端部（１ｅ）に装着され、開封時には鍔（２１）が鍔嵌合部（１１）に嵌合するまで押し込まれる様になされている。なお、鍔（２１）が鍔嵌合部（１１）に入り込む構造を備えていることにより、一旦開封した後は、誤操作によりノズル（２）を取り外して容器本体（１）内の液体を飛散させる虞がない。
【００２０】
更に、ノズル（２）の基端部には、当該ノズルの中心線に沿って複数のスリット（２２）が設けられる。スリット（２２）は、ノズル（２）を押し込んだ際に容器本体（１）の先端側内部に突出するノズル（２）の基端部の略全長に亙って設けられる。スリット（２２）の幅は、ノズル（２）の大きさにもよるが、０．３〜１．２ｍｍ程度に設計される。上記の様なスリット（２２）が設けられていることにより、本発明の容器は、転倒状態で使用した場合でも、容器本体（１）の先端側内部に突出したノズル（２）の基端部と容器本体（１）の内周面との間に液溜まりが生じることがなく、容器本体（１）に収容された殆ど全ての液体を円滑に取り出すことが出来る。
【００２１】
第１の駒部材（３）は、図１に示す様に、容器本体（１）の先端部（１ｅ）を封止するための部材である。図１及び図２に示す様に、第１の駒部材（３）は、短軸の有底円筒状に形成され且つ外周面が上記の第１の縮径部（１３）に気密に嵌合するシール部（３３）と、容器本体（１）後端側のシール部（３３）の底面に付設された複数の支柱部（３５）とから構成される。
【００２２】
図示しないが、シール部（３３）の外周面には、シール性を高めるため、周方向に沿った条溝または凸条が複数設けられてもよい。支柱部（３５）は、第１の駒部材（３）を容器本体（１）の後端側へ移動させた際に第２の駒部材（４）を加圧するための部位であり、シール部（３３）の底面の中心を通る容器本体（１）の中心線周りに放射状に張出された板状片から成り、例えば図示する様に羽根状に３枚設けられる。
【００２３】
すなわち、第１の駒部材（３）は、ノズル（２）によってシール部（３３）を加圧されることにより、シール部（３３）が後方へ移動し、第１の縮径部（１３）におけるシールを解除する様になされ、かつ、同時に第２の駒部材（４）を移動させる様になされている。なお、第１の駒部材（３）がノズル（２）の基端に略当接する状態とは、ノズル（２）の基端に接触した状態またはノズル（２）の基端から約３ｍｍ以下の範囲で離間した状態を言う。
【００２４】
第２の駒部材（４）は、図１に示す様に、容器本体（１）の絞り部（１ｆ）を封止するための部材である。図１及び図２に示す様に、第２の駒部材（４）は、短軸の逆有底円筒状に形成され且つ外周面が上記の第２の縮径部（１４）に気密に嵌合するシール部（４４）と、容器本体（１）先端側のシール部（４４）の底面に付設された複数の支柱部（４５）とから構成される。
【００２５】
図示しないが、シール部（４４）の外周面には、シール性を高めるため、前述のシール部（３３）と同様に、周方向に沿った条溝または凸条が複数設けられてもよい。支柱部（４５）は、上記の第１の駒部材（３）の支柱部（３５）によって容器本体（１）の後端側へ加圧される部位であり、シール部（４４）の底面（先端面）の中心を通る容器本体（１）の中心線周りに放射状に張出された板状片から成り、例えば図示する様に羽根状に３枚設けられる。各支柱部（４５）は、容器本体（１）への第２の駒部材（４）の装填を容易にするため、容器本体（１）の内部形状に近似した形状に形成されるのが好ましい。
【００２６】
すなわち、第２の駒部材（４）は、第１の駒部材（３）によって支柱部（４５）を加圧されることにより、シール部（４４）が後方へ移動し、第２の縮径部（１４）におけるシールを解除する様になされている。なお、第２の駒部材（４）が第１の駒部材（３）の基端に略当接する状態とは、第２の駒部材（４）の支柱部（４５）の先端が第１の駒部材（３）の支柱部（３５）の後端に接触した状態または支柱部（３５）の後端から約３ｍｍ以下の範囲で離間した状態を言う。
【００２７】
封止材（５）は、図１及び図２に示す様に、容器本体（１）の後端を封止する蓋材であり、製造装置において把持し易い例えば略八角形などの円形に近似した多角形または円形の平面形状を有し且つ外周部が厚肉になされた略平板状に形成され、先端面側の外周部には、図２及び図３に示す様に、容器本体（１）の後端部の厚肉部が嵌合する環状の嵌合溝（５１）が設けられる。封止材（５）は、その嵌合溝（５１）を利用して容器本体（１）の後端に取り付けられ、かつ、通常は容器本体（１）に溶着または接着される。
【００２８】
本発明の容器は、上記の様に、第１の駒部材（３）によって容器本体（１）の先端部（１ｅ）を封止し、第２の駒部材（４）によって容器本体（１）の絞り部（１ｆ）を封止し、そして、封止材（５）によって容器本体（１）の後端を封止することにより、容器本体（１）を２室に分割し、容器本体（１）の前半部（１ａ）に第１の液体を収容し、容器本体（１）の後半部（１ｂ）に第２の液体を収容する様になされている。本発明の容器の組立にあたり、容器本体（１）内の部材および内容物である液体は、図２及び図３に示す様に、第１の駒部材（３）、第１の液体、第２の駒部材（４）、第２の液体の順で順次に容器本体（１）の後端から収容され、容器本体（１）の後端は、上記の封止材（５）で封止される。また、ノズル（２）は、液体の収容前または収容後に装着される。
【００２９】
本発明の容器は、容器本体（１）において上記の様な第１の駒部材（３）及び第２の駒部材（４）による封止構造を備えており、第１の駒部材（３）及び第２の駒部材（４）は、ノズル（２）の押込み操作により、当該ノズルに連動して容器本体（１）の先端部（１ｅ）における封止および容器本体（１）の絞り部（１ｆ）における封止をそれぞれ解除する様になされている。
【００３０】
また、本発明の容器においては、使用前のノズル（２）の汚染を防止すると共に、ノズル（２）の押込み操作を容易にするため、図１〜図３に示す様に、ノズル（２）を含む容器本体（１）の前半部（１ａ）には、長軸の逆有底円筒状の蓋（６）が被せられる。蓋（６）の上端側内周部には、当該蓋の中心線に沿って伸長され且つ下端がノズル（２）の鍔（２１）に当接する複数のリブ（６２）が備えられている。
【００３１】
更に、図１及び図３に示す様に、本発明の容器においては、開封後の液体の蒸発や漏れを防止するため、上記の蓋（６）の内側頂点には、ノズル（２）の射出口（２３）に挿入されて当該射出口を封止する針状突起（６４）が突設され、そして、針状突起（６４）の周囲には、蓋（６）を被せた際に針状突起（６４）へ向けて射出口（２３）を相対的に案内する円筒状の案内部（６３）が設けられる。すなわち、容器本体（１）に蓋（６）を被せた場合には、針状突起（６４）が射出口（２３）に突き刺さり且つ案内部（６３）の下端が前述のノズル（２）の窪み（２４）の嵌合する様になされている。
【００３２】
本発明の容器は、蓋（６）の内周部に上記の様なリブ（６２）が備えられているため、蓋（６）を押し下げることにより、容器本体（１）の内部へ向けてノズル（２）を容易に押し込むことが出来る。すなわち、本発明の容器を使用する場合は、図４（ａ）及び（ｂ）に示す様に、上記の蓋（６）を押し下げることにより、容器本体（１）に対してノズル（２）を押し込む。斯かるノズル（２）の押込み操作により、当該ノズルに連動し、第１の駒部材（３）及び第２の駒部材（４）は、容器本体（１）の後端側に向けて押し込まれ、容器本体（１）の先端部（１ｅ）における封止および絞り部（１ｆ）における封止をそれぞれ解除する。換言すれば、第１の駒部材（３）のシール部（３３）及び第２の駒部材（４）のシール部（４４）が先端部（１ｅ）の第１の縮径部（１３）及び絞り部（１ｆ）の第２の縮径部（１４）からそれぞれ外れ、これにより、容器本体（１）の前半部（１ａ）と後半部（１ｂ）が実質的に１室になる。
【００３３】
従って、容器本体（１）に収容された第１の液体と第２の液体は、容器本体（１）を適宜振る等することにより容易に混合することが出来る。その場合、第１の駒部材（３）及び第２の駒部材（４）は、図４（ｃ）に示す様に、容器本体（１）の内部で撹拌子として遊動し、第１の液体と第２の液体の混合を促進させる。そして、混合された液体は、図４（ｄ）に示す様に、蓋（６）を取り外し、容器本体（１）を傾転させるか或いは傾転させた状態で容器本体（１）を指先で押圧することにより、ノズル（２）を通じて取り出すことが出来る。
【００３４】
上記の様に、本発明の容器は、１つの容器本体（１）内に第１の駒部材（３）及び第２の駒部材（４）を収容し、容器本体（１）の先端と後端にノズル（２）と封止材（５）を取り付けただけの簡単な組立構造を備えている。そして、ノズル（２）を押し込むだけの一層容易な操作により、２つの液体を混合でき、かつ、混合された液体を直ちに取り出すことが出来る。
【００３５】
また、本発明の容器は、ノズル（２）が略円錐状に形成され且つその先端に細管状の射出口（２３）が突設されていることにより、対象物の細部に対して正確に液体を塗布することが出来、しかも、使用中に液体の取出を中断して容器を立てた場合にも、ノズル（２）内には射出口（２３）にしか液体が残留しないため、容器本体（１）内部の圧力変化などによる液体の溢れ出しを一層低減することが出来る。更に、本発明の容器は、射出口（２３）の基部の周囲に窪み（２４）が設けられていることにより、仮に若干の液体の漏れ出しがあった場合でも、漏れた液体を窪み（２４）によって捕捉できるため、容器本体（１）側への垂れを防止でき、容器本体（１）が汚れるのを防止することが出来る。
【００３６】
しかも、本発明の容器において、ノズル（２）の基端部に複数のスリット（２２）が設けられている場合には、スリット（２２）を通じて液体がノズル（２）の先端側に円滑に流れるため、容器本体（１）の先端側内周面とノズル（２）の基端部との間に液体が残留することがなく、容器本体（１）内の略全ての液体を円滑に取り出すことが出来る。また、蓋（６）の内側頂点に針状突起（６４）が突設され、針状突起（６４）の周囲に案内部（６３）が設けられている場合には、蓋（６）を被せた際に針状突起（６４）が射出口（２３）に確実に突き刺さり且つ針状突起（６４）が射出口（２３）を封止するため、開封後に混合液体を保管するにあたり、液体の蒸発や漏れを確実に防止することが出来る。
【００３７】
そして、本発明の容器は、上記の様に、予め計量充填された２種の液体を開封操作により直ちに混合して使用できるため、２種の液体を使用する際に複数の容器で計量混合する場合に比べ、混合操作における手間を軽減することが出来、かつ、容器への付着などによる材料としての液体の無駄をなくすことが出来る。しかも、開封する際に初めて２種の液体を混合する様になされているため、薬剤などの液体を一層長期に渡って保存でき、そして、開封後も混合液体の保管容器としてそのまま使用できる。
【００３８】
【発明の効果】
以上説明した様に、本発明の二液収納混合容器は、１つの容器本体内に第１の駒部材および第２の駒部材を収容し、容器本体の先端と後端にノズルと封止材を取り付けただけの簡単な組立構造を備えており、そして、本発明の二液収納混合容器によれば、ノズルを押し込むだけの一層容易な操作により、２つの液体を混合でき、かつ、混合された液体を直ちに取り出すことが出来る。
【図面の簡単な説明】
【図１】本発明に係る二液収納混合容器の内部構造を破断して示す斜視図である。
【図２】本発明に係る二液収納混合容器の組立構造を展開して示す斜視図である。
【図３】本発明に係る二液収納混合容器の組立構造を展開して示す縦断面図である。
【図４】本発明に係る二液収納混合容器の使用方法ならびに第１の駒部材と第２の駒部材の機能を示す縦断面図である。
【符号の説明】
１：容器本体
１ａ：容器本体の前半部
１ｂ：容器本体の後半部
１ｅ：容器本体の先端部
１ｆ：容器本体の絞り部
１１：鍔嵌合部
１３：第１の縮径部
１４：第２の縮径部
２：ノズル
２１：鍔
２２：スリット
２３：射出口
２４：窪み
３：第１の駒部材
３３：シール部
３５：支柱部
４：第２の駒部材
４４：シール部
４５：支柱部
５：封止材
６：蓋
６２：リブ
６３：案内部
６４：針状突起[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a two-component container, and more specifically, a container that is applied when two types of liquids such as a tooth restoration material and various adhesives are mixed and used. The present invention relates to a two-component storage mixing container which can be stored separately and mixed inside when opened.
[0002]
[Prior art]
A container that separately contains two types of materials, such as powder and liquid, is applied to packaging of tooth restoration materials. As such a container, for example, a substantially cylindrical container main body whose tip side is formed to be somewhat small in diameter and filled with a liquid, and a part of the container main body that is partially inserted in the front end side of the container main body and in which powder is contained. A container composed of a substantially cylindrical capsule (upper syringe part) filled with a body is known. In such a container, the capsule includes a bottomed cylindrical outer cylinder portion fitted into the container body, a cylindrical inner cylinder portion whose lower end is cut in an inclined state and inserted into the outer cylinder portion from the upper end side, It is composed of a cylindrical cap with an inverted bottom attached to the upper end of the cylinder part. When used, the lower end of the capsule part is pushed by pushing the nozzle part of the capsule and pushing the inner cylinder part down against the outer cylinder part. The lower end of the outer cylinder portion is broken by the sharp structure of the capsule, the powder inside the capsule is mixed with the liquid in the container body, and the capsule cap is removed to take out the mixture of the powder and liquid in the container body ( Patent Document 1).
[0003]
[Patent Document 1]
International Publication No. WO 02/36065 A1 (FIG. 1, FIG. 2)
[0004]
[Problems to be solved by the invention]
By the way, in the above container, the so-called double tube portion of the capsule composed of the outer cylinder part and the inner cylinder part is fitted into the container body, and the outer cylinder part of the capsule is firmly fixed to the distal end side of the container body by welding or the like. The assembly structure is extremely complicated. In addition, when opening the container, the container must be operated in two ways, that is, the operation of breaking the outer cylinder of the capsule and the operation of removing the cap. . Furthermore, since the lower end of the capsule is disposed inside the container body, when the container body is turned over to take out the contents, the contents remain in the gap between the capsule lower end and the container body inner periphery, There is a problem that all the contents cannot be taken out.
[0005]
The present invention has been made as a result of various studies to apply the above-described container structure for mixing powder and liquid to the storage and mixing of two kinds of liquids. A two-component container that can be stored separately and mixed inside when opened, has a simpler assembly structure, and mixes two liquids with easier operation. An object of the present invention is to provide a two-component container that can be taken out.
[0006]
[Means for Solving the Problems]
In the present invention, the inside of one container body is divided into two chambers by two piece members and a sealing material at the rear end, so that two kinds of liquids are separately accommodated in the container body. Then, by one operation of the nozzle attached to the tip of the container main body, the two piece members are moved in the container main body in conjunction with this, thereby opening the container main body, and the inside of the container main body is substantially I made it to one room.
[0007]
That is, the gist of the present invention is a two-component storage mixing container that separately stores two kinds of liquids and that can be mixed when opened, and the first half has a smaller inner diameter than the second half. A substantially two-stage cylindrical container main body, a nozzle that is mounted so as to be able to be pushed into the distal end of the container main body, and a distal end of the container main body that is inserted into the container main body while being substantially in contact with the proximal end of the nozzle A first piece member that seals the portion, and a second piece that is inserted into the container body so as to substantially contact the rear end of the first piece member and seals the throttle portion of the inner diameter of the container body By comprising a member and a sealing material attached to the rear end of the container main body, the first liquid is accommodated in the front half of the container main body and the second liquid is contained in the rear half of the container main body. And the first piece member and the second piece member are By depressing of the nozzle, it consists in two liquid accommodating mixing container, characterized by being releasably made respectively sealing the tip and the diaphragm portion of the container body in conjunction with the nozzle.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
One embodiment of a two-component storage and mixing container according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the internal structure of a two-component storage mixing container according to the present invention in a cutaway manner. 2 is an exploded perspective view showing the assembly structure of the two-component storage mixing container according to the present invention, and FIG. 3 is a longitudinal sectional view showing the assembly structure of the two-component storage mixing container according to the present invention. It is. FIG. 4 is a longitudinal sectional view showing a method of using the two-component storage mixing container according to the present invention and functions of the first piece member and the second piece member. Hereinafter, in the description of the embodiments, the two-component storage mixing container is abbreviated as “container”.
[0009]
The container of the present invention is a container in which two kinds of liquids are separately stored and can be mixed at the time of use, and liquids to be mixed and used, for example, various pharmaceuticals, teeth It is also applied when packaging non-medical liquid materials such as restorative liquid materials, surgical aids, and other non-medical applications such as adhesives and fillers.
[0010]
The container of the present invention is usually formed of a transparent resin material, typically a resin material such as cyclic polyolefin, polypropylene, polyethylene, polyethylene naphthalate having excellent chemical resistance and heat resistance. Further, when a liquid that is altered or cured by light is contained, it is formed of a resin material containing a light shielding material such as carbon black.
[0011]
As shown in FIGS. 1 and 2, the container of the present invention has a substantially two-stage cylindrical flexible container body (1) in which the front half (1a) has a smaller inner diameter than the rear half (1b), A nozzle (2) that is mounted so as to be able to be pushed into the distal end of the container main body, and a distal end (1e) of the container main body (1) that is inserted into the container main body (1) in a state of substantially contacting the proximal end of the nozzle. The first piece member (3) to be sealed, and the narrowed portion (1f) of the inner diameter of the container body (1) inserted into the container body (1) in a state of substantially contacting the rear end of the first piece member. It is mainly comprised from the 2nd piece member (4) which seals and the sealing material (5) with which the rear end of the container main body (1) was mounted | worn.
[0012]
As shown in FIGS. 1 and 3, the inside of the container body (1) is formed so that the front half (1a), that is, the substantially upper half of the container body (1) in the figure has a small diameter, and the latter half ( 1b), that is, the substantially lower half of the container body (1) in the figure is formed to have a large diameter. And the container main body (1) is provided with the softness | flexibility of the grade which can be deform | transformed by the pressurization with a fingertip so that the content can be easily extruded at the time of use.
[0013]
As shown in FIG. 3, on the inner peripheral surface of the tip (1e) of the container main body (1) (the upper end of the container main body (1) in the figure), a flange (21) of the nozzle (2) described later is provided. An annular flange fitting portion (11) to be fitted, an annular nozzle insertion portion (12) into which a base portion of the nozzle (2) is inserted, and a seal portion (to be described later) of the first piece member (3) ( An annular first reduced diameter portion (13) with which 33) is fitted is sequentially provided from the distal end side of the container body (1). The inner diameters of the flange fitting part (11) and the first reduced diameter part (13) are set larger than the inner diameter of the nozzle insertion part (12).
[0014]
Further, the throttle part (1f) of the container main body (1), that is, the inner peripheral surface of the switching part of the inner diameter of the front half part (1a) and the rear half part (1b) is provided with a second piece member (4) described later. An annular second reduced diameter portion (14) is provided in which the seal portion (44) is fitted. The second reduced diameter portion (14) is set to have a diameter larger than the inner diameter of the front half (1a) of the container body (1) and smaller than the inner diameter of the rear half (1b). Further, the rear end of the container main body (1) (the lower end of the container main body (1) in the figure) is airtightly attached with a sealing material (5) to be described later. Is slightly thick. In addition, when applied to a tooth restoration material etc., the internal volume of a container main body (1) is designed to about 3-12 cm < ³ >.
[0015]
The nozzle (2) is attached to the tip (1e) of the container body (1) as shown in FIG. 1, but the base inserted into the tip (1e) as shown in FIGS. The end side is formed in a substantially cylindrical shape, and the tip side protruding from the container body (1) is formed in a substantially conical shape. The outer diameter of the base end side of the nozzle (2) is designed to fit into the nozzle insertion portion (12). The front end side of the nozzle (2) is formed in a substantially conical shape that is gradually reduced in diameter toward the front end in order to push out the liquid as the contents to an accurate position when the container is used, and the taper angle ( The opening angle when viewed from the tip is designed to be about 30 to 60 °.
[0016]
At the tip of the nozzle (2), a narrow tubular injection port (23) having a length of 2 to 16 mm is projected. The reason why the length of the injection port (23) is set within the above range is as follows. That is, when the injection port (23) is longer than 16 mm, in the usage mode in which the content is pushed out intermittently, depending on the type of liquid, the content retained in the injection port (23) overflows due to a change in internal pressure. In some cases, however, the amount of overflow increases and may cause inconvenience in practice. On the other hand, when the injection port (23) is shorter than 2 mm, when the contents are applied to a finer portion, the injection port (23) cannot be positioned at the target location and can be applied accurately. There are things that cannot be done. In addition, when applying to a tooth restoration material, the opening area of an injection port (23) is designed to be about 0.1 to ⁴ mm ² .
[0017]
In addition, in order to further reduce the liquid pool in the inner surface of the nozzle (2) tip (under the injection port (23)) due to the surface tension of the liquid that has entered the injection port (23), The opening angle of the inner surface of the tip of the nearest nozzle (2) is preferably set to 60 ° or more.
[0018]
Further, as shown in FIG. 2 and FIG. 3, even if a small amount of liquid overflows from the injection port (23) around the base of the injection port (23) at the tip of the nozzle (2), the overflowed liquid remains in the nozzle. An annular recess (24) is provided so as not to hang down toward the container body (1) along (2). That is, the tip of the nozzle (2) has a shape in which the apex of the cone is slightly cut out, and the injection port (23) projects from the apex, and around the injection port (23). It has a structure provided with the depression (24) for capturing liquid.
[0019]
Moreover, as shown in FIG. 1, an annular ridge (21) fitted to the above-described ridge fitting portion (11) of the container body (1) is provided on the outer peripheral portion in the center in the length direction of the nozzle (2). Is overhanging. When the nozzle (2) is pushed into the distal end portion (1e) of the container body (1), the flange (21) functions as a stopper that defines the moving end together with the flange fitting portion (11). That is, the nozzle (2) is pushed until the base end is attached to the distal end (1e) of the container body (1) before opening, and the ridge (21) is pushed into the heel fitting portion (11) before opening. It is made to be done. Since the bag (21) is provided with a structure that enters the bag fitting portion (11), after opening the nozzle, the nozzle (2) is removed by mistake and the liquid in the container body (1) is scattered. There is no fear.
[0020]
Furthermore, a plurality of slits (22) are provided at the base end of the nozzle (2) along the center line of the nozzle. The slit (22) is provided over substantially the entire length of the base end portion of the nozzle (2) that protrudes into the front end side of the container body (1) when the nozzle (2) is pushed. The width of the slit (22) is designed to be about 0.3 to 1.2 mm, although it depends on the size of the nozzle (2). By providing the slit (22) as described above, the container of the present invention can be used when the container is in a fall state, and the base end of the nozzle (2) protruding inside the distal end side of the container body (1). And no liquid pool is formed between the inner peripheral surface of the container main body (1) and almost all liquid stored in the container main body (1) can be smoothly taken out.
[0021]
The 1st piece member (3) is a member for sealing the front-end | tip part (1e) of a container main body (1), as shown in FIG. As shown in FIGS. 1 and 2, the first piece member (3) is formed in a short-bottomed cylindrical shape and the outer peripheral surface is airtightly fitted to the first reduced diameter portion (13). And a plurality of support columns (35) attached to the bottom surface of the seal portion (33) on the rear end side of the container body (1).
[0022]
Although not shown, a plurality of grooves or protrusions along the circumferential direction may be provided on the outer peripheral surface of the seal portion (33) in order to improve the sealing performance. The strut portion (35) is a portion for pressurizing the second piece member (4) when the first piece member (3) is moved to the rear end side of the container body (1). It consists of a plate-like piece projecting radially around the center line of the container body (1) passing through the center of the bottom surface of (33). For example, three pieces are provided in a blade shape as shown in the figure.
[0023]
That is, the first piece member (3) is pressurized by the seal portion (33) by the nozzle (2), so that the seal portion (33) moves rearward and the first reduced diameter portion (13). And the second piece member (4) is moved at the same time. The state in which the first piece member (3) is substantially in contact with the base end of the nozzle (2) is a state of being in contact with the base end of the nozzle (2) or about 3 mm or less from the base end of the nozzle (2). A state that is separated by a range.
[0024]
As shown in FIG. 1, the second piece member (4) is a member for sealing the throttle portion (1f) of the container body (1). As shown in FIG. 1 and FIG. 2, the second piece member (4) is formed in a short axis reverse bottomed cylindrical shape, and its outer peripheral surface is airtightly fitted to the second reduced diameter portion (14). The seal part (44) to be joined is composed of a plurality of column parts (45) attached to the bottom surface of the seal part (44) on the tip side of the container body (1).
[0025]
Although not shown, a plurality of grooves or protrusions along the circumferential direction may be provided on the outer peripheral surface of the seal portion (44) in the same manner as the above-described seal portion (33) in order to improve the sealing performance. The strut portion (45) is a portion that is pressurized toward the rear end side of the container body (1) by the strut portion (35) of the first piece member (3), and the bottom surface of the seal portion (44) ( It consists of a plate-like piece radially extending around the center line of the container main body (1) passing through the center of the tip surface, and for example, three blades are provided as shown in the figure. Each strut (45) is preferably formed in a shape that approximates the internal shape of the container body (1) in order to facilitate the loading of the second piece member (4) into the container body (1). .
[0026]
That is, when the second piece member (4) is pressurized on the support column (45) by the first piece member (3), the seal part (44) moves rearward, and the second diameter reduction. The seal in the portion (14) is released. The state in which the second piece member (4) is substantially in contact with the proximal end of the first piece member (3) means that the tip of the column (45) of the second piece member (4) is the first piece. The state which contacted the rear end of the support | pillar part (35) of a piece member (3), or the state spaced apart in the range of about 3 mm or less from the rear end of the support | pillar part (35).
[0027]
As shown in FIGS. 1 and 2, the sealing material (5) is a lid material that seals the rear end of the container body (1), and approximates a circular shape such as a substantially octagonal shape that is easy to grip in the manufacturing apparatus. As shown in FIGS. 2 and 3, the container main body (1) is formed in a substantially flat plate shape having a polygonal or circular plane shape and having a thick outer peripheral portion. ) Is provided with an annular fitting groove (51) into which the thick part at the rear end is fitted. The sealing material (5) is attached to the rear end of the container body (1) using the fitting groove (51), and is usually welded or bonded to the container body (1).
[0028]
As described above, the container of the present invention seals the tip (1e) of the container body (1) with the first piece member (3), and the container body (1) with the second piece member (4). The container body (1) is divided into two chambers by sealing the narrowed portion (1f) of the container and sealing the rear end of the container body (1) with the sealing material (5). The first liquid is accommodated in the first half (1a) of 1), and the second liquid is accommodated in the second half (1b) of the container body (1). In assembling the container according to the present invention, the liquid in the container body (1) and the contents are the first piece member (3), the first liquid, the second liquid, as shown in FIGS. The piece member (4) and the second liquid are sequentially accommodated from the rear end of the container body (1), and the rear end of the container body (1) is sealed with the sealing material (5). The The nozzle (2) is mounted before or after the liquid is stored.
[0029]
The container of the present invention has a sealing structure with the first piece member (3) and the second piece member (4) as described above in the container body (1), and the first piece member (3). And the second piece member (4) is operated by pushing the nozzle (2) in conjunction with the nozzle at the tip (1e) of the container body (1) and the throttle part (1) of the container body (1). Each of the seals in 1f) is released.
[0030]
Moreover, in the container of this invention, in order to prevent the contamination of the nozzle (2) before use and to facilitate the pushing operation of the nozzle (2), as shown in FIGS. The front half (1a) of the container main body (1) including the cover is covered with a long-axis inverted bottomed cylindrical lid (6). The upper end side inner peripheral part of the lid (6) is provided with a plurality of ribs (62) that extend along the center line of the lid and whose lower end abuts against the flange (21) of the nozzle (2).
[0031]
Further, as shown in FIGS. 1 and 3, in the container of the present invention, the nozzle (2) is projected at the inner vertex of the lid (6) in order to prevent evaporation and leakage of the liquid after opening. A needle-like protrusion (64) that is inserted into the outlet (23) and seals the injection port is provided so as to protrude around the needle-like protrusion (64) when the lid (6) is covered. A cylindrical guide portion (63) for relatively guiding the injection port (23) toward the protrusion (64) is provided. That is, when the container body (1) is covered with the lid (6), the needle-like projection (64) pierces the injection port (23), and the lower end of the guide portion (63) is the depression of the nozzle (2). (24) is fitted.
[0032]
Since the container of the present invention is provided with the rib (62) as described above on the inner peripheral portion of the lid (6), the nozzle is directed toward the inside of the container body (1) by pushing down the lid (6). (2) can be pushed in easily. That is, when using the container of the present invention, as shown in FIGS. 4A and 4B, the nozzle (2) is moved with respect to the container body (1) by pushing down the lid (6). Push in. By the pushing operation of the nozzle (2), the first piece member (3) and the second piece member (4) are pushed toward the rear end side of the container body (1) in conjunction with the nozzle. The sealing at the tip (1e) of the container body (1) and the sealing at the restricting portion (1f) are released. In other words, the seal part (33) of the first piece member (3) and the seal part (44) of the second piece member (4) are connected to the first reduced diameter part (13) and the tip part (1e). Each of the throttle parts (1f) is disengaged from the second reduced diameter part (14), so that the front half part (1a) and the rear half part (1b) of the container body (1) substantially become one chamber.
[0033]
Accordingly, the first liquid and the second liquid stored in the container body (1) can be easily mixed by appropriately shaking the container body (1). In this case, as shown in FIG. 4C, the first piece member (3) and the second piece member (4) float as a stirrer inside the container body (1), and the first liquid And mixing of the second liquid. Then, as shown in FIG. 4D, the mixed liquid is removed from the lid (6), and the container body (1) is tilted or tilted with the fingertip. By pressing, it can be taken out through the nozzle (2).
[0034]
As described above, the container of the present invention accommodates the first piece member (3) and the second piece member (4) in one container body (1), and the front and rear of the container body (1). It has a simple assembly structure in which a nozzle (2) and a sealing material (5) are attached to the end. Then, the two liquids can be mixed and the mixed liquid can be immediately taken out by an easier operation of simply pushing the nozzle (2).
[0035]
In the container of the present invention, the nozzle (2) is formed in a substantially conical shape, and a thin tubular injection port (23) is projected at the tip of the nozzle (2), so that the liquid can be accurately applied to the details of the object. In addition, when the container is set up by interrupting the extraction of the liquid during use, the liquid remains in the nozzle (2) only at the injection port (23). 1) Liquid overflow due to changes in internal pressure can be further reduced. Furthermore, since the container of the present invention is provided with the depression (24) around the base of the injection port (23), even if there is a slight leakage of the liquid, the leakage liquid is depressed (24). ), It is possible to prevent the container body (1) from sagging and to prevent the container body (1) from becoming dirty.
[0036]
Moreover, in the container of the present invention, when a plurality of slits (22) are provided at the base end of the nozzle (2), the liquid smoothly flows to the tip side of the nozzle (2) through the slit (22). Therefore, the liquid does not remain between the inner peripheral surface of the distal end side of the container main body (1) and the base end portion of the nozzle (2), and substantially all the liquid in the container main body (1) can be taken out smoothly. I can do it. In addition, when a needle-like protrusion (64) is projected from the inner vertex of the lid (6) and a guide portion (63) is provided around the needle-like protrusion (64), the lid (6) is covered. When the mixed liquid is stored after opening, the needle-like projections (64) surely pierce the injection port (23) and the needle-like projections (64) seal the injection port (23). And leakage can be reliably prevented.
[0037]
As described above, the container of the present invention can be used by immediately mixing and using two types of liquids that have been preliminarily metered and filled by an opening operation. Therefore, when two types of liquids are used, they are measured and mixed in a plurality of containers. Compared to the case, it is possible to reduce time and effort in the mixing operation, and it is possible to eliminate waste of liquid as a material due to adhesion to the container. Moreover, since the two kinds of liquids are mixed for the first time at the time of opening, the liquid such as the medicine can be stored for a longer period of time, and can be used as it is as a storage container for the mixed liquid even after opening.
[0038]
【The invention's effect】
As described above, the two-component storage and mixing container of the present invention stores the first piece member and the second piece member in one container body, and the nozzle and the sealing material at the front and rear ends of the container body. The two-component storage mixing container of the present invention can mix and mix two liquids by an easier operation by simply pushing the nozzle. Liquid can be removed immediately.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a broken internal structure of a two-component storage mixing container according to the present invention.
FIG. 2 is an exploded perspective view showing an assembly structure of a two-component storage mixing container according to the present invention.
FIG. 3 is a longitudinal sectional view showing an exploded structure of a two-component storage / mixing container according to the present invention.
FIG. 4 is a longitudinal sectional view showing a method of using the two-component storage mixing container according to the present invention and functions of the first piece member and the second piece member.
[Explanation of symbols]
1: Container body 1a: Front half 1b of container body: Second half 1e of container body: Tip 1f of container body: Squeeze part 11 of container body: Hook fitting part 13: First reduced diameter part 14: Second Reduced diameter part 2: nozzle 21: flange 22: slit 23: injection port 24: depression 3: first piece member 33: seal part 35: support part 4: second piece member 44: seal part 45: support part 5: Sealing material 6: Lid 62: Rib 63: Guide part 64: Needle-like protrusion

Claims

A two-component container that contains two liquids separately and that can be mixed when opened, wherein the front half (1a) has a smaller inner diameter than the rear half (1b). A substantially two-stage cylindrical container body (1), a nozzle (2) mounted to be able to be pushed into the distal end of the container body, and the container body (1) inserted into the container body (1) in a state of being substantially in contact with the base end of the nozzle. The first piece member (3) for sealing the front end (1e) of the container body (1) and the container body (1) inserted into the container body (1) in a state of being substantially in contact with the rear end of the first piece member. It is comprised from the 2nd piece member (4) which seals the aperture | diaphragm | squeeze part (1f) of the internal diameter of a container main body (1), and the sealing material (5) with which the rear end of the container main body (1) was mounted | worn. As a result, the first liquid is accommodated in the first half (1a) of the container body (1) and the second liquid is contained in the second half (1b) of the container body (1). The first piece member (3) and the second piece member (4) are connected to the nozzle (2) by the pushing operation of the nozzle (2). The two-component storage mixing container, wherein the sealing at 1e) and the throttle portion (1f) can be released respectively.

The two-component storage / mixing according to claim 1, wherein the nozzle (2) is formed in a substantially conical shape on the tip side protruding from the container body (1), and is provided with a narrow tubular injection port (23) at the tip. container.

The two-component container according to claim 2, wherein an annular recess (24) is provided around the base of the injection port (23) at the tip of the nozzle (2).

The two-component storage mixing container according to any one of claims 1 to 3, wherein a plurality of slits (22) are provided at a proximal end portion of the nozzle (2) along a center line of the nozzle.

The container body (1) including the nozzle (2) is provided with an inverted bottomed cylindrical lid (6) that covers the front half (1a) of the container body (1). ) And a needle-like projection (64) that seals the injection port is provided so as to protrude toward the needle-like projection (64) when the lid (6) is placed around the needle-like projection. The two-component storage and mixing container according to any one of claims 1 to 4, further comprising a cylindrical guide portion (63) for relatively guiding the injection port (23).