JP3551081B2 - Liquid container stopper device - Google Patents

Liquid container stopper device Download PDF

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Publication number
JP3551081B2
JP3551081B2 JP14760699A JP14760699A JP3551081B2 JP 3551081 B2 JP3551081 B2 JP 3551081B2 JP 14760699 A JP14760699 A JP 14760699A JP 14760699 A JP14760699 A JP 14760699A JP 3551081 B2 JP3551081 B2 JP 3551081B2
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Japan
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cover member
valve body
liquid container
valve
cam piece
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JP14760699A
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Japanese (ja)
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JP2000333846A (en
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朋浩 若槻
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Tiger Corp
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Tiger Corp
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Description

【0002】
【発明の属する技術分野】
【0003】
本願発明は、魔法瓶等の液体容器の栓装置に関するものである。
【従来の技術】
【0004】
従来から良く知られている液体容器の栓装置としては、栓体内に形成された注液通路の入口を開閉する弁体を、栓体に対して弧回動自在に軸支された操作レバーのカム面の回動変位により開閉作動せしめるようにするとともに、前記操作レバーを、そのカム面が弁体開の押圧死点を若干越える開位置で位置規制するようにしたものがある(実開平3−81041号公報参照)。
【発明が解決しようとする課題】
【0005】
上記公知例の液体容器の栓装置の場合、操作レバーを、そのカム面が弁体開の押圧死点を若干越える開位置で位置規制するようにしているため、操作レバーの回動中心と弁体の上下動作時の動作線とを水平方向に位置ズレさせる必要がある。すると、弁体の開状態において該弁体を上方(即ち、閉方向)に付勢しているスプリングにより操作レバーにモーメントが作用することとなる。従って、弁体および操作レバーに組み付け誤差が生じたり、弁体の上下動時にブレが生じたりすると、前記モーメントにより操作レバーの位置規制が困難となる場合が生ずる。また、上記公知例のものでは、注液通路の出口はコップの被嵌により閉鎖されることとなっているが、コップを取り外した状態では、注液通路を介してゴミあるいは虫等が侵入するおそれがある。
【0006】
本願発明は、上記の点に鑑みてなされたもので、注液通路の出口を開閉するカバー部材を開作動させた時にカム片の押圧力によって開作動された弁体に作用する付勢力がカム片にモーメントを作用させることのないようにし、カバー部材および弁体の開状態保持を容易に行い得るようにすることを目的とするものである。
【課題を解決するための手段】
【0007】
請求項1の発明では、上記課題を解決するための手段として、容器本体に着脱自在に装着されるとともに内部に前記容器本体内に通じる入口と外気に開口する出口とを有する注液通路を形成した栓体を具備し、該栓体には、前記注液通路の入口を上下動動作により開閉するとともに常時閉方向に付勢された弁体と、前記注液通路の出口を弧回動動作により開閉するカバー部材とを設けてなる液体容器の栓装置において、前記カバー部材を上下動動作により開閉操作する操作部材を付設し且つ該操作部材と前記カバー部材との間に、前記カバー部材の開状態を保持させる規制手段を設ける一方、前記カバー部材に、該カバー部材の開作動時に前記弁体を開作動させるカム片を一体に形成し且つ該カム片の回動中心を、前記弁体の上下動動作時の動作線上に位置させるとともに、前記カム片における前記弁体との当接面を、前記弁体を最大下動位置まで下動させる第1カム面と、該第1カム面の下端から上方に延びる第2カム面とにより構成し、前記第1カム面における最大下動点とカム片の回動中心との距離をR1、前記第2カム面とカム片の回動中心との距離をR2とするとき、R1≦R2に設定している。
【0008】
上記のように構成したことにより、注液通路の出口を開閉するカバー部材を開作動させた時にカム片の押圧力によって開作動された弁体に作用する付勢力がカム片にモーメントを作用させることがなくなり、カバー部材および弁体の開状態保持が容易となる。しかも、カバー部材を上下動動作により開閉操作する操作部材とカバー部材との間に、前記カバー部材の開状態を保持させる規制手段を設けているので、カバー部材の開状態保持がより一層確実となる。さらに、カバー部材が超過操作されても、カム片により開作動された弁体は、開状態を維持するか、開方向への移動しかしないこととなり、弁体により開放面積を確保することができる。また、栓体をコンパクト化しても、適度な注液通路出口と適度な操作部とを確保することができる。
【0009】
請求項の発明におけるように、請求項記載の液体容器の栓装置において、前記規制手段を、前記カバー部材における操作部に形成した係合凹部と、前記操作部材に一体に形成され、該操作部材の下動時に前記係合凹部に係合する係合リブとによって構成した場合、規制手段の構造が簡略化できる。開状態の保持を、弁体とカム片との係合力で規制しないため、開状態の保持を安定させることができる。
【0010】
請求項の発明におけるように、請求項およびのいずれか一項記載の液体容器の栓装置において、前記栓体に、前記操作部材の上下動時に案内するガイドレールを形成した場合、操作部材の上下動操作がスムーズに行える。
【発明の実施の形態】
【0011】
以下、添付の図面を参照して、本願発明の幾つかの好適な実施の形態について説明する。
【0012】
第1の実施の形態
図1ないし図4には、本願発明の第1の実施の形態にかかる液体容器の栓装置が示されている。
【0013】
この液体容器の栓装置は、図1に示すように、ステンレス鋼製の真空二重容器からなる容器本体1の注口部2に螺着脱自在に取り付けられるものである。符号3は前記注口部2の外側を覆うべく螺着脱されるコップである。
【0014】
前記栓装置は、容器本体1の注口部2に螺着脱自在に装着されるとともに内部に前記容器本体1内に通じる入口5aと外気に開口する出口5bとを有する注液通路5を形成した栓体4を具備しており、該栓体4には、前記注液通路5の入口5aを上下動動作により開閉するとともに常時閉方向に付勢された弁体6と、前記注液通路5の出口5bを弧回動動作により開閉するカバー部材7と、該カバー部材7を上下動動作により開閉操作する操作部材8とが設けられている。
【0015】
前記栓体4は、前記容器本体注口部2に螺着されるネジ部9を有する有底円筒形状の栓本体4aと、該栓本体4aの底部中心部から一体に立設され且つ前記弁体6の上下動時のガイドとなる弁支持筒4bとからなっている。
【0016】
前記注液通路5は、前記栓本体4aと前記弁支持筒4bと栓本体4aと弁支持筒4bを連結する連結部4cとで囲まれて前記栓体4内における一方向側の一部に縦方向に形成されている。このことにより、注液時における注液方向を特定できるようになっている。符号10は注液時の空気取り入れ穴である。
【0017】
また、前記栓本体4aの下端部には、容器本体注口部2の下端部および弁体6とのシール性を確保するためのシールパッキン11が設けられている。
【0018】
前記弁体6は、前記シールパッキン11に当接されて前記注液通路5の入口5aを開閉する弁部6aと該弁部6aの中心部から上方に延びて前記弁支持筒4b内に位置せしめられる弁棒部6bとからなっており、該弁棒部6bの上端部に形成された環状の係止部6cに係止されたスプリング受け12と前記弁支持筒4bの底部との間に介設されたスプリング13により上方に付勢された状態(換言すれば、閉方向に付勢された状態)で支持されている。なお、弁体6は栓体4の中心部に位置されている。また、前記弁支持筒4bの底部には、前記弁体弁棒部6bの外周に上端部が摺接されるガイド筒14が一体に突設されており、該ガイド筒14により弁体6の上下動がスムーズに行えることとなっている。さらに、前記弁支持筒4bの内周面には、弁体6の上下動時に前記スプリング受け12をスムーズにガイドする縦リブ15が形成されている。符号26は前記ガイド筒14と弁体弁棒部6bとの間をシールするシールパッキンである。
【0019】
前記カバー部材7は、前記注液通路5の出口5bを開閉するカバー部7aと、該カバー部材7の回動中心である支軸16の反対側に位置する操作部7bとからなっている。前記支軸16は、前記カバー部材7に一体に形成されており、前記弁体6の上下動動作時の動作線O上(換言すれば、栓体4の中心線上)に位置して軸受部材17に回動自在に枢支されている。
【0020】
また、前記カバー部材7の下面には、該カバー部材7の開作動時に前記弁体6の弁棒部6bの上端を押圧して該弁体6を開作動させるカム片18が一体に形成されている。該カム片18における前記弁体弁棒部6bとの当接面は、前記弁体6を最大下動位置まで下動させる第1カム面18aと、該第1カム面18aの下端から上方に延びる第2カム面18bとにより構成されており、前記第1カム面18aにおける最大下動点Pとカム片18の回動中心との距離をR1、前記第2カム面18bとカム片18の回動中心との距離をR2とするとき、R1=R2に設定されている。なお、図5に示すように、R1<R2に設定してもよい。R1=R2に設定した場合には、カム片18の過回動時にも弁体6は下動変位することがなくなるし、R1<R2に設定した場合には、カム片18の過回動時に弁体6が下動変位するが、いずれの場合にも弁体6による開放面積は確保される。
【0021】
カバー部材7が注液通路出口5bを閉塞している状態においては、弁体6の弁棒部6bの上端とカム片18の第1カム面18aとの間にクリアランスが設けられる。このようにすると、弁体6が上動限(即ち、閉状態)に至る前にカバー部材7が閉状態となることがなくなり、弁体6による注液通路入口5aの閉塞が確実に行えることとなる。
【0022】
さらに、前記カバー部材7における操作部7bの上面には、該カバー部材7の開状態を保持させる規制手段Aの一方側を構成する係合凹部19が形成されている。
【0023】
前記操作部材8は、略長方形形状を呈しており、その下面には、下動時に前記カバー部材7の操作部7bを押圧するとともに下動限において前記係合凹部19に係合する係合リブ20が一体に形成されている。該係合リブ20は、前記カバー部材7の開状態を保持させる規制手段Aの他方側を構成している。この操作部材8の両側には、前記栓体4の内面に形成されたガイドレール21に係合して操作部材8の上下動をスムーズに行う突起22が一体に形成されている。符号8aは、カバー部材7の閉状態において、その操作部7bの回動を規制するストッパーである。
【0024】
前記栓体4の栓本体4aの内周面には、前記操作部材8の押し下げ過ぎを規制する規制リブ23が一体に形成されている。
【0025】
図面中、符号24は栓体4の上面となる蓋である。
【0026】
上記のように構成された液体容器の栓装置は、次のように作用する。
【0027】
図2に示すように、カバー部材7が注液通路出口5bを閉塞している状態においては、カム片18と弁体弁棒部6bの上端とは非当接状態とされており、弁体6は、スプリング13の付勢力により閉弁状態とされている。
【0028】
図2の状態から図3に示すように、操作部材8を手指で押し下げると、該操作部材8の係合リブ20の押圧力によってカバー部材7の操作部7bが矢印M方向に回動され、カバー部材7のカバー部7aが注液通路出口5bを開放するとともに、カム片18の回動変位により弁体弁棒部6bがスプリング13の付勢力に抗して押し下げられ、弁体6が開弁状態とされる。この時、操作部材8の係合リブ20がカバー部材7の係合凹部19に係合され、その係合力によってカバー部材7の開状態が保持される。
【0029】
この状態においては、カム片18の押圧力によって開作動された弁体6に作用するスプリング13の付勢力がカム片18にモーメントを作用させることがなくなる。従って、カバー部材7および弁体6の開状態を保持するための規制手段を設けなくともよいが、本実施の形態においては、カバー部材7および弁体6の開状態をより確実に保持するために、規制力の小さい規制手段A(即ち、係合凹部19と係合リブ20との係合力を利用したもの)が用いられている。
【0030】
また、カム片18の回動により第1カム面18aによって弁体6が下動された後、弁体6の最大下動後においては弁体6の上下動変位が生じることがなくなり、弁体6の開状態を確保し易くなる。
【0031】
図3の状態から容器本体1の注口部2にコップ3を装着すると、カバー部材7はコップ3の押圧力により閉作動されるとともに、弁体6も閉作動される。
【0032】
さらに、本実施の形態においては、支軸16を、弁体6の上下動動作時の動作線O上(換言すれば、栓体4の中心線上)に位置させているため、栓体4をコンパクト化したとしても、注液通路出口5bおよび操作部材8を適度の大きさとすることができる。
【0033】
の実施の形態
ないし図には、本願発明の第の実施の形態にかかる液体容器の栓装置が示されている。
【0034】
この場合、カバー部材7および操作部材8は、栓体4の弁支持筒4bに対して螺着脱自在とされるとともに注液通路5の壁面の一部を構成する略円筒形状の支持部材25に組み付けられている。該支持部材25は、前記カバー部材7および操作部材8が組み付けられる有底円筒形状の支持部25aと、前記弁支持筒4bに形成された外ネジ30に螺合される内ネジ31を有するネジ筒部25bとからなっており、前記支持部25aの底部には、弁体6の弁棒部6bの上部が臨まされる開口32が形成されている。符号27は弁体弁棒部6bと支持部材25における支持部25aの底部開口32との間をシールするシールパッキンである。このようにすると、支持部材25を栓体4の弁支持筒4bから離脱させれば、図7に示すように、栓体4内部が開放状態となり、ブラシ洗浄が可能となる。従って、液体容器使用者においては、従前にも増して清潔感を満足させることができる。その他の構成および作用効果は、第1の実施の形態におけると同様なので説明を省略する。
【0035】
の実施の形態
には、本願発明の第の実施の形態にかかる液体容器の栓装置が示されている。
【0036】
この場合、第の実施の形態におけるカバー部材7のカバー部7aには、該カバー部材7の閉作動時に注液通路出口5bを密栓するシール部材28が取り付けられている。該シール部材28は、逆円錐形状とされており、カバー部材7の閉作動時には前記注液通路出口5bに形成された傾斜面29に圧接されることとなっている。なお、この場合には、シール部材28により注液通路出口5bを密栓する必要があるところから、カバー部材7の閉状態においてカム片18の第1カム面18aに弁体6の弁棒部6bがスプリング13の付勢力により圧接されることとなっている。このようにしても、シール部材28が弾性変形するので、弁体6が上動限(即ち、閉状態)に至らないということはない。このようにすると、カバー部材7の閉状態においては、注液通路出口5bがシール部材28により確実に閉塞されることとなり、注液通路5を介しての内容液の漏れが生じることがなくなる。その他の構成および作用効果は、第の実施の形態におけると同様なので説明を省略する。
【発明の効果】
【0037】
請求項1の発明によれば、容器本体に着脱自在に装着されるとともに内部に前記容器本体内に通じる入口と外気に開口する出口とを有する注液通路を形成した栓体を具備し、該栓体には、前記注液通路の入口を上下動動作により開閉するとともに常時閉方向に付勢された弁体と、前記注液通路の出口を弧回動動作により開閉するカバー部材とを設けてなる液体容器の栓装置において、前記カバー部材を上下動動作により開閉操作する操作部材を付設し且つ該操作部材と前記カバー部材との間に、前記カバー部材の開状態を保持させる規制手段を設ける一方、前記カバー部材に、該カバー部材の開作動時に前記弁体を開作動させるカム片を一体に形成し且つ該カム片の回動中心を、前記弁体の上下動動作時の動作線上に位置させるとともに、前記カム片における前記弁体との当接面を、前記弁体を最大下動位置まで下動させる第1カム面と、該第1カム面の下端から上方に延びる第2カム面とにより構成し、前記第1カム面における最大下動点とカム片の回動中心との距離をR1、前記第2カム面とカム片の回動中心との距離をR2とするとき、R1≦R2に設定しているので、注液通路の出口を開閉するカバー部材を開作動させた時にカム片の押圧力によって開作動された弁体に作用する付勢力がカム片にモーメントを作用させることがなくなり、カバー部材および弁体の開状態保持が容易となるという効果がある。しかも、カバー部材を上下動動作により開閉操作する操作部材とカバー部材との間に、前記カバー部材の開状態を保持させる規制手段を設けているので、カバー部材の開状態保持がより一層確実となるという効果もある。さらに、カバー部材が超過操作されても、カム片により開作動された弁体は、開状態を維持するか、開方向への移動しかしないこととなり、弁体により開放面積を確保することができるという効果もある。また、栓体をコンパクト化しても、適度な注液通路出口と適度な操作部とを確保することができるという効果もある。
【0038】
請求項の発明におけるように、請求項記載の液体容器の栓装置において、前記規制手段を、前記カバー部材における操作部に形成した係合凹部と、前記操作部材に一体に形成され、該操作部材の下動時に前記係合凹部に係合する係合リブとによって構成した場合、規制手段の構造が簡略化できる。開状態の保持を、弁体とカム片との係合力で規制しないため、開状態の保持を安定させることができる。
【0039】
請求項の発明におけるように、請求項およびのいずれか一項記載の液体容器の栓装置において、前記栓体に、前記操作部材の上下動時に案内するガイドレールを形成した場合、操作部材の上下動操作がスムーズに行える。
【図面の簡単な説明】
【0040】
【図1】本願発明の第1の実施の形態にかかる栓装置を備えた液体容器の縦断面図である。
【図2】本願発明の第1の実施の形態にかかる液体容器の栓装置の閉弁状態を示す縦断面図である。
【図3】本願発明の第1の実施の形態にかかる液体容器の栓装置の開弁状態を示す縦断面図である。
【図4】本願発明の第1の実施の形態にかかる液体容器の栓装置の平面図である。
【図5】本願発明の第1の実施の形態にかかる液体容器の栓装置におけるカム片と弁体弁棒部との関係を示す説明図である。
【図6】本願発明の第2の実施の形態にかかる液体容器の栓装置の閉弁状態を示す縦断面図である。
【図7】本願発明の第の実施の形態にかかる液体容器の栓装置の開弁状態を示す縦断面図である。
【図8】本願発明の第の実施の形態にかかる液体容器の栓装置の分解状態を示す縦断面図である。
【図9】本願発明の第の実施の形態にかかる液体容器の栓装置の閉弁状態を示す縦断面図である。
【符号の説明】
【0041】
1は容器本体、2は注口部、4は栓体、5は注液通路、5aは入口、5bは出口、6は弁体、7はカバー部材、8は操作部材、13はスプリング、16は支軸、18はカム片、18aは第1カム面、18bは第2カム面、19は係合凹部、20は係合リブ、21はガイドレール、22は突起、24は支持部材、Aは規制手段、Pは最大下動点。
[0002]
TECHNICAL FIELD OF THE INVENTION
[0003]
The present invention relates to a stopper device for a liquid container such as a thermos bottle.
[Prior art]
[0004]
As a well-known stopper device for a liquid container, a valve body that opens and closes an inlet of a liquid injection passage formed in a stopper body is provided with an operation lever that is rotatably pivotally supported by the stopper body. There is one in which the opening and closing operation is performed by the rotational displacement of the cam surface, and the position of the operation lever is regulated at an open position where the cam surface slightly exceeds the pressing dead center of the valve body opening (actually open flat 3). -81041).
[Problems to be solved by the invention]
[0005]
In the case of the liquid container stopper device of the above-mentioned known example, since the position of the operation lever is regulated at the open position where the cam surface slightly exceeds the pressing dead center of the valve body opening, the rotation center of the operation lever and the valve are controlled. It is necessary to shift the operation line in the horizontal direction from the operation line at the time of vertical movement of the body. Then, a moment acts on the operating lever by the spring that is urging the valve body upward (that is, in the closing direction) in the open state of the valve body. Therefore, if an assembly error occurs in the valve element and the operation lever, or if the valve element moves up and down, the position of the operation lever becomes difficult to regulate due to the moment. Further, in the above-mentioned known example, the outlet of the liquid injection passage is closed by being fitted with a cup, but when the glass is removed, dust or insects enter through the liquid injection passage. There is a risk.
[0006]
The present invention has been made in view of the above points, and when a cover member that opens and closes an outlet of a liquid injection passage is opened, an urging force acting on a valve element that is opened by a pressing force of a cam piece is applied to a cam. It is an object of the present invention to prevent a moment from acting on a piece and to easily maintain an open state of a cover member and a valve body.
[Means for Solving the Problems]
[0007]
According to the first aspect of the present invention, as a means for solving the above-mentioned problems, a liquid injection passage is provided which is detachably mounted on the container body and has therein an inlet communicating with the inside of the container body and an outlet opening to the outside air. A valve body that opens and closes the inlet of the liquid injection passage by a vertical movement and is urged in a normally closed direction, and an arc-rotating operation of the outlet of the liquid injection passage. In a liquid container stopper device provided with a cover member that opens and closes by an operation member, an operation member that opens and closes the cover member by a vertical movement is attached, and the cover member is provided between the operation member and the cover member. While a regulating means for maintaining the open state is provided, the cover member is integrally formed with a cam piece for opening the valve body when the cover member is opened, and the center of rotation of the cam piece is set to the valve body. During vertical movement of A first cam surface for moving the contact surface of the cam piece with the valve body down to a maximum downward movement position, and extending upward from a lower end of the first cam surface; The distance between the maximum lowering point on the first cam surface and the rotation center of the cam piece is R 1 , and the distance between the second cam surface and the rotation center of the cam piece is R when a 2 is set to R 1 ≦ R 2.
[0008]
With the above configuration, when the cover member that opens and closes the outlet of the liquid injection passage is opened, the urging force that acts on the valve element that is opened by the pressing force of the cam piece acts on the cam piece. And the open state of the cover member and the valve body can be easily maintained. In addition, since the regulating means for maintaining the open state of the cover member is provided between the operating member that opens and closes the cover member by the vertical movement and the cover member, the open state of the cover member can be more reliably maintained. Become. Furthermore, even if the cover member is operated excessively, the valve element opened by the cam piece is kept open or only moves in the opening direction, so that the valve element can secure an open area. . Further, even if the stopper is made compact, a proper liquid injection passage outlet and a proper operation unit can be secured.
[0009]
As in the invention according to claim 2 , in the stopper device for a liquid container according to claim 1 , the restricting means is formed integrally with an engaging recess formed in an operating portion of the cover member and the operating member, When the operation member is constituted by the engagement rib which engages with the engagement recess when the operation member is moved down, the structure of the regulating means can be simplified. Since the holding of the open state is not restricted by the engagement force between the valve element and the cam piece, the holding of the open state can be stabilized.
[0010]
As in the invention according to claim 3 , in the stopper device for a liquid container according to any one of claims 1 and 2 , when a guide rail that guides the operation member when the operation member moves up and down is formed on the stopper, the operation is performed. Up and down operation of members can be performed smoothly.
BEST MODE FOR CARRYING OUT THE INVENTION
[0011]
Hereinafter, some preferred embodiments of the present invention will be described with reference to the accompanying drawings.
[0012]
First Embodiment FIGS. 1 to 4 show a stopper device for a liquid container according to a first embodiment of the present invention.
[0013]
As shown in FIG. 1, the stopper device for a liquid container is detachably attached to a spout 2 of a container body 1 formed of a vacuum double container made of stainless steel. Reference numeral 3 denotes a cup which is screwed on and off to cover the outside of the spout 2.
[0014]
The stopper device is formed so as to be detachably screwed into the spout 2 of the container body 1 and has a liquid injection passage 5 having an inlet 5a communicating with the inside of the container body 1 and an outlet 5b opening to the outside. The plug 4 includes a valve 6 that opens and closes an inlet 5 a of the liquid injection passage 5 by a vertical movement and is urged in a normally closed direction. A cover member 7 for opening and closing the outlet 5b by an arc rotation operation and an operation member 8 for opening and closing the cover member 7 by an up and down operation are provided.
[0015]
The stopper body 4 is a bottomed cylindrical stopper body 4a having a threaded portion 9 screwed into the container body spout 2, and is integrally erected from a bottom center of the stopper body 4a and the valve is provided. And a valve support cylinder 4b serving as a guide when the body 6 moves up and down.
[0016]
The liquid injection passage 5 is surrounded by the plug body 4a, the valve support tube 4b, and a connecting portion 4c connecting the plug body 4a and the valve support tube 4b. It is formed in the vertical direction. Thus, the direction of liquid injection at the time of liquid injection can be specified. Reference numeral 10 denotes an air intake hole at the time of liquid injection.
[0017]
At the lower end of the plug main body 4a, a seal packing 11 for ensuring the sealing performance with the lower end of the container main body spout 2 and the valve body 6 is provided.
[0018]
The valve body 6 is in contact with the seal packing 11 to open and close the inlet 5a of the liquid injection passage 5, and extends upward from the center of the valve part 6a and is located in the valve support cylinder 4b. A valve stem 6b to be squeezed, between the spring receiver 12 locked by an annular locking portion 6c formed at the upper end of the valve stem 6b and the bottom of the valve support cylinder 4b. It is supported in a state of being urged upward by the interposed spring 13 (in other words, a state of being urged in the closing direction). The valve 6 is located at the center of the plug 4. At the bottom of the valve support cylinder 4b, a guide cylinder 14 whose upper end is slidably contacted with the outer periphery of the valve body valve rod 6b is integrally formed with the guide cylinder 14. Up and down movement can be performed smoothly. Further, a vertical rib 15 for guiding the spring receiver 12 smoothly when the valve body 6 moves up and down is formed on the inner peripheral surface of the valve support cylinder 4b. Reference numeral 26 denotes a seal packing for sealing between the guide cylinder 14 and the valve stem 6b.
[0019]
The cover member 7 includes a cover portion 7a for opening and closing the outlet 5b of the liquid injection passage 5, and an operation portion 7b located on the opposite side of the support shaft 16 which is the center of rotation of the cover member 7. The support shaft 16 is formed integrally with the cover member 7, and is positioned on an operation line O (in other words, on the center line of the plug 4) when the valve body 6 moves up and down. 17 is rotatably supported.
[0020]
On the lower surface of the cover member 7, a cam piece 18 for pressing the upper end of the valve rod portion 6b of the valve body 6 to open the valve body 6 when the cover member 7 is opened is integrally formed. ing. The contact surface of the cam piece 18 with the valve body valve stem portion 6b includes a first cam surface 18a for moving the valve body 6 down to a maximum downward movement position, and an upper portion from a lower end of the first cam surface 18a. The distance between the maximum lower movement point P on the first cam surface 18a and the center of rotation of the cam piece 18 is R 1 , and the second cam surface 18b and the cam piece 18 are extended. Assuming that the distance from the center of rotation is R 2 , R 1 = R 2 . As shown in FIG. 5, R 1 <R 2 may be set. When R 1 = R 2 , the valve element 6 does not move downward even when the cam piece 18 rotates excessively, and when R 1 <R 2 , the cam piece 18 Although the valve element 6 is displaced downward during excessive rotation, the open area of the valve element 6 is ensured in any case.
[0021]
When the cover member 7 closes the injection passage outlet 5b, a clearance is provided between the upper end of the valve rod 6b of the valve body 6 and the first cam surface 18a of the cam piece 18. This prevents the cover member 7 from being closed before the valve body 6 reaches the upper limit (that is, the closed state), so that the valve body 6 can reliably close the liquid inlet passage inlet 5a. It becomes.
[0022]
Further, on the upper surface of the operation portion 7b of the cover member 7, an engagement concave portion 19 which forms one side of the regulating means A for holding the cover member 7 open is formed.
[0023]
The operating member 8 has a substantially rectangular shape, and has a lower surface provided with an engaging rib which presses the operating portion 7b of the cover member 7 at the time of downward movement and engages with the engaging concave portion 19 at the lower limit. 20 are integrally formed. The engaging rib 20 constitutes the other side of the regulating means A for keeping the cover member 7 open. On both sides of the operation member 8, projections 22 that engage with guide rails 21 formed on the inner surface of the plug 4 to smoothly move the operation member 8 up and down are integrally formed. Reference numeral 8a denotes a stopper that restricts rotation of the operation portion 7b when the cover member 7 is in the closed state.
[0024]
On the inner peripheral surface of the plug main body 4a of the plug body 4, a regulating rib 23 for regulating the operation member 8 from being pushed down too much is integrally formed.
[0025]
In the drawings, reference numeral 24 denotes a lid that is the upper surface of the plug 4.
[0026]
The stopper device for a liquid container configured as described above operates as follows.
[0027]
As shown in FIG. 2, when the cover member 7 closes the liquid injection passage outlet 5b, the cam piece 18 and the upper end of the valve body valve rod 6b are not in contact with each other, The valve 6 is closed by the urging force of the spring 13.
[0028]
As shown in FIG. 3 from the state of FIG. 2, when the operation member 8 is pressed down by a finger, the operation portion 7 b of the cover member 7 is rotated in the direction of the arrow M by the pressing force of the engagement rib 20 of the operation member 8, The cover portion 7a of the cover member 7 opens the liquid injection passage outlet 5b, and the rotational displacement of the cam piece 18 pushes down the valve body valve rod portion 6b against the urging force of the spring 13 to open the valve body 6. The valve state is set. At this time, the engaging rib 20 of the operating member 8 is engaged with the engaging concave portion 19 of the cover member 7, and the open state of the cover member 7 is held by the engaging force.
[0029]
In this state, the urging force of the spring 13 acting on the valve element 6 opened by the pressing force of the cam piece 18 does not exert a moment on the cam piece 18. Therefore, it is not necessary to provide a restricting means for maintaining the open state of the cover member 7 and the valve element 6. However, in this embodiment, in order to more reliably maintain the open state of the cover member 7 and the valve element 6. For this purpose, a regulating means A having a small regulating force (that is, a means utilizing the engaging force between the engaging recess 19 and the engaging rib 20) is used.
[0030]
Further, after the valve element 6 is moved down by the first cam surface 18a due to the rotation of the cam piece 18, no vertical displacement of the valve element 6 occurs after the maximum downward movement of the valve element 6. 6 can be easily opened.
[0031]
When the cup 3 is attached to the spout 2 of the container body 1 from the state shown in FIG. 3, the cover member 7 is closed by the pressing force of the cup 3 and the valve 6 is also closed.
[0032]
Further, in the present embodiment, since the support shaft 16 is located on the operation line O (in other words, on the center line of the plug 4) at the time of the vertical movement of the valve body 6, the plug 4 is Even if the size is reduced, the liquid injection passage outlet 5b and the operation member 8 can be made to have an appropriate size.
[0033]
The Second Embodiment FIG. 6 to FIG. 8, the plug system for a liquid container according to the second embodiment of the present invention is shown.
[0034]
In this case, the cover member 7 and the operation member 8 are detachably screwed to and from the valve support cylinder 4b of the plug 4 and have a substantially cylindrical support member 25 forming a part of the wall surface of the liquid injection passage 5. It is assembled. The support member 25 has a bottomed cylindrical support portion 25a to which the cover member 7 and the operation member 8 are assembled, and an internal screw 31 screwed to an external screw 30 formed in the valve support cylinder 4b. An opening 32 is formed at the bottom of the support portion 25a so as to face the upper part of the valve stem 6b of the valve body 6. Reference numeral 27 denotes a seal packing for sealing between the valve body valve stem portion 6b and the bottom opening 32 of the support portion 25a of the support member 25. By doing so, if the support member 25 is detached from the valve support cylinder 4b of the plug 4, the inside of the plug 4 is opened as shown in FIG. 7 and brush cleaning becomes possible. Therefore, the user of the liquid container can satisfy the feeling of cleanliness more than before. The other configuration and operation and effect are the same as those in the first embodiment, and thus the description is omitted.
[0035]
Third Embodiment FIG. 9 shows a stopper device for a liquid container according to a third embodiment of the present invention.
[0036]
In this case, a seal member 28 for sealing the liquid injection passage outlet 5b when the cover member 7 is closed is attached to the cover portion 7a of the cover member 7 in the second embodiment. The seal member 28 has an inverted conical shape, and is pressed against the inclined surface 29 formed in the liquid injection passage outlet 5b when the cover member 7 is closed. In this case, since it is necessary to seal the injection passage outlet 5b with the seal member 28, the valve rod 6b of the valve body 6 is attached to the first cam surface 18a of the cam piece 18 in the closed state of the cover member 7. Are pressed by the urging force of the spring 13. Even in this case, since the seal member 28 is elastically deformed, the valve body 6 does not reach the upper limit (that is, the closed state). In this manner, when the cover member 7 is in the closed state, the liquid injection passage outlet 5b is reliably closed by the seal member 28, and leakage of the content liquid through the liquid injection passage 5 does not occur. The other configuration and operation and effect are the same as those in the first embodiment, and thus the description is omitted.
【The invention's effect】
[0037]
According to the first aspect of the present invention, there is provided a plug body which is detachably attached to the container main body and has a liquid injection passage formed therein, which has an inlet communicating with the inside of the container main body and an outlet opening to the outside air. The plug body is provided with a valve body that opens and closes the inlet of the liquid injection passage by a vertical movement and is normally urged in a closing direction, and a cover member that opens and closes the outlet of the liquid injection passage by an arc rotation operation. In the liquid container stopper device, an operating member for opening and closing the cover member by an up-down movement is additionally provided, and between the operating member and the cover member, a regulating means for holding the open state of the cover member is provided. On the other hand, a cam piece for opening the valve body when the cover member is opened is formed integrally with the cover member, and the center of rotation of the cam piece is set on an operation line when the valve body moves up and down. In front of A contact surface of the cam piece with the valve body is constituted by a first cam surface for moving the valve body down to a maximum lowering position and a second cam surface extending upward from a lower end of the first cam surface. When the distance between the maximum lowering point on the first cam surface and the rotation center of the cam piece is R 1 , and the distance between the second cam surface and the rotation center of the cam piece is R 2 , R 1 ≦ since the set R 2, the biasing force acting on the opening actuated valve body by the pressing force of the cam piece when the cover member for opening and closing the outlet of the liquid injection passageway was opening operation exerts a moment on the cam piece This has the effect that the cover member and the valve element can easily be kept open. In addition, since the regulating means for maintaining the open state of the cover member is provided between the operating member that opens and closes the cover member by the vertical movement and the cover member, the open state of the cover member can be more reliably maintained. There is also the effect of becoming. Furthermore, even if the cover member is operated excessively, the valve element opened by the cam piece is kept open or only moves in the opening direction, so that the valve element can secure an open area. There is also an effect. Further, even if the plug is made compact, there is an effect that a proper liquid injection passage outlet and a proper operation unit can be secured.
[0038]
As in the invention according to claim 2 , in the stopper device for a liquid container according to claim 1 , the regulating means is formed integrally with an engagement recess formed in an operation portion of the cover member and the operation member, When the operation member is constituted by the engagement rib which engages with the engagement recess when the operation member is moved down, the structure of the regulating means can be simplified. Since the holding of the open state is not restricted by the engagement force between the valve element and the cam piece, the holding of the open state can be stabilized.
[0039]
As in the invention according to claim 3 , in the stopper device for a liquid container according to any one of claims 1 and 2 , when a guide rail that guides the operation member when the operation member moves up and down is formed on the stopper, the operation is performed. Up and down operation of members can be performed smoothly.
[Brief description of the drawings]
[0040]
FIG. 1 is a vertical sectional view of a liquid container provided with a stopper device according to a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing a valve closing state of the stopper device for the liquid container according to the first embodiment of the present invention.
FIG. 3 is a longitudinal sectional view showing a valve-open state of the liquid container stopper device according to the first embodiment of the present invention.
FIG. 4 is a plan view of the liquid container stopper device according to the first embodiment of the present invention.
FIG. 5 is an explanatory view showing a relationship between a cam piece and a valve stem in the stopper device for a liquid container according to the first embodiment of the present invention.
FIG. 6 is a longitudinal sectional view showing a closed state of a stopper device for a liquid container according to a second embodiment of the present invention.
FIG. 7 is a longitudinal sectional view showing a valve opening state of a stopper device for a liquid container according to a second embodiment of the present invention.
FIG. 8 is a longitudinal sectional view showing an exploded state of a stopper device for a liquid container according to a second embodiment of the present invention.
FIG. 9 is a longitudinal sectional view showing a valve closing state of a stopper device for a liquid container according to a third embodiment of the present invention.
[Explanation of symbols]
[0041]
1 is a container body, 2 is a spout, 4 is a plug, 5 is a liquid injection passage, 5a is an inlet, 5b is an outlet, 6 is a valve, 7 is a cover member, 8 is an operating member, 13 is a spring, 16 Is a support shaft, 18 is a cam piece, 18a is a first cam surface, 18b is a second cam surface, 19 is an engagement recess, 20 is an engagement rib, 21 is a guide rail, 22 is a projection, 24 is a support member, and A Is the regulating means, and P is the maximum downward movement point.

Claims (3)

容器本体に着脱自在に装着されるとともに内部に前記容器本体内に通じる入口と外気に開口する出口とを有する注液通路を形成した栓体を具備し、該栓体には、前記注液通路の入口を上下動動作により開閉するとともに常時閉方向に付勢された弁体と、前記注液通路の出口を弧回動動作により開閉するカバー部材とを設けてなる液体容器の栓装置であって、前記カバー部材を上下動動作により開閉操作する操作部材を付設し且つ該操作部材と前記カバー部材との間には、前記カバー部材の開状態を保持させる規制手段を設ける一方、前記カバー部材には、該カバー部材の開作動時に前記弁体を開作動させるカム片を一体に形成し且つ該カム片の回動中心を、前記弁体の上下動動作時の動作線上に位置させるとともに、前記カム片における前記弁体との当接面を、前記弁体を最大下動位置まで下動させる第1カム面と、該第1カム面の下端から上方に延びる第2カム面とにより構成し、前記第1カム面における最大下動点とカム片の回動中心との距離をR1、前記第2カム面とカム片の回動中心との距離をR2とするとき、R1≦R2に設定したことを特徴とする液体容器の栓装置。A plug body which is detachably attached to the container body and has a liquid injection passage formed therein, the liquid injection path having an inlet communicating with the inside of the container main body and an outlet opening to the outside air; A liquid container stopper device comprising: a valve body that opens and closes an inlet of a liquid container by a vertical movement and is urged in a normally closed direction; and a cover member that opens and closes an outlet of the liquid injection passage by an arc rotation operation. An operating member for opening and closing the cover member by a vertical movement; and a regulating means for holding the open state of the cover member between the operating member and the cover member. A cam piece for opening the valve body when the cover member is opened is formed integrally and the center of rotation of the cam piece is positioned on an operation line when the valve body moves up and down, The cam piece A first cam surface for moving the valve body down to a maximum lowering position, and a second cam surface extending upward from a lower end of the first cam surface; Assuming that the distance between the maximum lowering point on the surface and the rotation center of the cam piece is R 1 , and the distance between the second cam surface and the rotation center of the cam piece is R 2 , R 1 ≦ R 2 . A stopper device for a liquid container, comprising: 前記規制手段を、前記カバー部材における操作部に形成した係合凹部と、前記操作部材に一体に形成され、該操作部材の下動時に前記係合凹部に係合する係合リブとによって構成したことを特徴とする前記請求項記載の液体容器の栓装置。The regulating means is constituted by an engagement recess formed in an operation portion of the cover member, and an engagement rib formed integrally with the operation member and engaging with the engagement recess when the operation member is moved down. plug device of the liquid container of claim 1, wherein a. 前記栓体には、前記操作部材を上下動時に案内するガイドレールを形成したことを特徴とする前記請求項およびのいずれか一項記載の液体容器の栓装置。Wherein the plug member, the operating member the claims 1 and plug device of the liquid container according to any one claim of 2, characterized in that the formation of the guide rail for guiding at vertically moved.
JP14760699A 1999-05-27 1999-05-27 Liquid container stopper device Expired - Fee Related JP3551081B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4649992B2 (en) * 2005-01-07 2011-03-16 タイガー魔法瓶株式会社 Thermal bottle
JP5012920B2 (en) * 2010-01-28 2012-08-29 タイガー魔法瓶株式会社 Thermal bottle
JP7355991B2 (en) * 2019-03-11 2023-10-04 タイガー魔法瓶株式会社 beverage container

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