JP3937428B2 - Inner cap for beverage containers - Google Patents

Inner cap for beverage containers Download PDF

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Publication number
JP3937428B2
JP3937428B2 JP2002010119A JP2002010119A JP3937428B2 JP 3937428 B2 JP3937428 B2 JP 3937428B2 JP 2002010119 A JP2002010119 A JP 2002010119A JP 2002010119 A JP2002010119 A JP 2002010119A JP 3937428 B2 JP3937428 B2 JP 3937428B2
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Japan
Prior art keywords
lid
elastic member
stopper
drinking mouth
hinge
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Expired - Lifetime
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JP2002010119A
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JP2003212258A5 (en
JP2003212258A (en
Inventor
邦生 初本
孝志 後藤
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Thermos KK
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Thermos KK
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Priority to JP2002010119A priority Critical patent/JP3937428B2/en
Priority to US10/339,768 priority patent/US20030136783A1/en
Priority to CNB2006101682412A priority patent/CN100542905C/en
Priority to CN03100074A priority patent/CN1432512A/en
Priority to TW092100390A priority patent/TWI298247B/en
Publication of JP2003212258A publication Critical patent/JP2003212258A/en
Publication of JP2003212258A5 publication Critical patent/JP2003212258A5/ja
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00—Table service
    • A47G19/22—Drinking vessels or saucers used for table service
    • A47G19/2205—Drinking glasses or vessels
    • A47G19/2266—Means for facilitating drinking, e.g. for infants or invalids
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
    • A47J41/0005—Thermally-insulated vessels, e.g. flasks, jugs, jars comprising a single opening for filling and dispensing provided with a stopper
    • A47J41/0027—Thermally-insulated vessels, e.g. flasks, jugs, jars comprising a single opening for filling and dispensing provided with a stopper the stopper incorporating a dispensing device, i.e. the fluid being dispensed through the stopper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0857—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures made separately from the base element provided with the spout or discharge passage
    • B65D47/0876—Hinges without elastic bias
    • B65D47/088—Hinges without elastic bias located at an edge of the base element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0857—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures made separately from the base element provided with the spout or discharge passage
    • B65D47/0876—Hinges without elastic bias
    • B65D47/088—Hinges without elastic bias located at an edge of the base element
    • B65D47/0885—Hinges without elastic bias located at an edge of the base element one part of the hinge being integral with the hinged closure and the other part with the base element, without any other additional hinge element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2251/00—Details relating to container closures
    • B65D2251/10—Details of hinged closures
    • B65D2251/1016—Means for locking the closure in closed position
    • B65D2251/1058—Latching mechanisms

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pediatric Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Cookers (AREA)
  • Thermally Insulated Containers For Foods (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、携帯用魔法瓶や水筒，スポーツドリンク容器を始めとする各種飲料用容器の中栓に係り、特に蓋体をワンタッチで開いて容器本体内の飲料を直接飲むことのできる飲料用容器の中栓に関する。
【０００２】
【従来の技術】
飲料用容器の中栓の先行技術として、例えば特開平２００１−１４９２３６号公報に開示されるものがある。この先行技術は、容器本体の上部開口に被着される筒状の栓体と、該栓体にヒンジにて開閉可能に連結され、栓体の天板に開口する注出口を液密に覆う蓋体と、該蓋体を全閉状態に保持するスライド式のロック手段とを備えており、蓋体を解放した栓体の上部周壁に唇をつけて飲料容器内の飲料を直接飲むことができるようにしている。
【０００３】
【発明が解決しようする課題】
しかしながら、上述の栓体は、上部周壁が下すぼまりの漏斗状に形成されていて天板はその下側にあるため、飲料を飲む際に容器を傾けると、注出口から流出した飲料が上部周壁を開口縁に向かうに従って拡散することとなり、しかも注出口からの流量は、容器本体の傾け具合を調節する以外にはないため、飲料を飲用者が口の小さな子どもであったり乗物等の振動のある場所で飲む場合には、飲料が口の外へ流れ出て衣服を濡らす虞がある。
【０００４】
さらに、ロック手段には、蓋体の全閉状態を保持するために金属製の圧縮コイルばねが組み込まれているが、飲料用容器の中栓は使用の前後に容器本体から取り外して洗浄する部品であるため、水分の付着によって錆の発生する虞がある金属部品を用いることは衛生的観点から極力避けることが望ましい。
【０００５】
この対策として、栓体に弾性チューブやストローを吸い口として設けることが考えられるが、これらはいずれも飲料を吸引して飲むこととなるため、熱い飲み物には適当でない。
【０００６】
また、特開平１１−２４４１５８号公報には、栓体の天板に筒状の飲み口を突設し、該飲み口に可動キャップを昇降可能に装着した中栓が開示され、可動キャップを上昇させて開栓した飲み口を、可動キャップごと口に含んで容器本体内の飲料を飲むようにしているが、この飲み口は、上端面が飲み口の中心軸と直交方向に設けられているため、特に量が少なくなった容器本体内の飲料を飲むために、容器本体を水平以上に傾けた場合には、飲用者に顔を仰向けにさせて体をのけ反らせるムリな姿勢を強いることとなり、好ましくない。
【０００７】
本発明は、このような実情を背景にしてなされたもので、その目的とするところは、容器本体内の飲料を飲用者や飲む場所，飲料の温度に関わりなく、かつ楽な姿勢で良好に飲むことができ、また水洗いにも錆ることなく衛生的な飲料用容器の中栓を提供することにある。
【０００８】
【課題を解決するための手段】
上記した目的を達成するため、本発明は、容器本体の上部開口に被着される栓体と、該栓体にヒンジにて開閉可能に連結され、前記栓体の天板に開口する注出口を液密に覆う蓋体とを備え、前記ヒンジと反対側に前記蓋体の全閉状態を保持するロック手段を備えた飲料用容器の中栓において、
前記栓体の前記天板上面に筒状の飲み口を突出して設け、該飲み口の内部を前記注出口となすとともに、該飲み口の上端面を前記ロック手段側が高くヒンジ側が低いテーパ状にカットすると共に、前記蓋体に一体にボス部を突設し、該ボス部に非金属製材料により形成した弾性部材を嵌合装着したものであって、前記蓋体を全閉した際には、前記ボス部に嵌合装着された前記弾性部材が、前記栓体に弾接する状態とし、前記ロック手段を解除した際には、前記蓋体を開方向へ付勢するようにし、前記栓体の前記天板に空気孔を設け、前記弾性部材を前記蓋体が全閉した際に前記空気孔を閉塞する位置に設けたことを特徴としている。
【０００９】
本発明の他の手段として、前記弾性部材は、前記空気孔を直交方向に閉塞することを特徴とする。さらに前記弾性部材は内部が空洞であり、該空洞部に空気が出入り自由であることを特徴とする。
【００１０】
【発明の実施の形態】
以下本発明を、携帯用の魔法瓶に適用した形態例を図面に基づいて詳細に説明する。
【００１１】
図１〜図３は第１形態例を示すもので、魔法瓶１は、金属製の容器本体２と、該容器本体２の上部開口に被着される合成樹脂製の中栓３とを備えている。容器本体２は、内筒２ａと外筒２ｂの上部開口縁を一体に接合し、内筒２ａと外筒２ｂとの間の空間を真空の断熱層４となした断熱二重構造で、外筒２ｂの上部外周には、中栓３を螺着するためのおねじ２ｃが形成されている。
【００１２】
中栓３は、めねじ５ａを外筒２ｂのおねじ２ｃに螺着して容器本体２の上部開口に装着される栓体５と、該栓体５にヒンジ６を用いて開閉可能に連結される蓋体７と、ヒンジ６とは反対側で蓋体７の全閉状態を保持するロック手段８とを備えている。
【００１３】
栓体５は、外筒２ｂの上部外周を囲繞する筒状部５ｂの上面に、容器本体２の上部開口を覆う天板５ｃを設けた逆有底筒状に形成されており、筒状部５ｂの一側部には、ロック手段８の構成部材であるシーソ式のロックボタン１０と係止環１１とが設けられている。また、天板５ｃの一側部側には飲み口５ｄが、天板５ｃの他側部側には、ヒンジ６の構成部材であるガイドリブ５ｅがそれぞれ突設され、さらに飲み口５ｄとガイドリブ５ｅとの間に空気孔１２が開設されており、飲み口５ｄと空気孔１２とは、ガイドリブ５ｅとロックボタン１０とを結ぶ直線Ｌ１上に配設されている。
【００１４】
蓋体７は、栓体５の筒状部５ｂの上側に連続する筒状部７ａと、該筒状部７ａの上面を閉塞する天板７ｂとの逆有底筒状に形成されており、さらに、ロック手段８が位置する一側部側が高く、ヒンジ６が位置する他側部側が低い傾斜形状となっている。筒状部７ａは、一側部にロック手段８の構成部材である係止リブ７ｃと係止片７ｄとが突設され、他側部にヒンジ６を構成する二股腕７ｅと開蓋状態を保持する爪片７ｆとが形成されるとともに、天板７ｂの内側には、パッキン１３と弾性部材１４とがヒンジ６のガイドリブ５ｅとロック手段８のロックボタン１０とを結ぶ直線Ｌ１上に配設されている。
【００１５】
前記ヒンジ６は、栓体５のガイドリブ５ｅを蓋体７の二股腕７ｅではさみ、これらにヒンジ軸１５を挿通することによって構成され、蓋体７は、このヒンジ６によって、栓体５の上部に開閉可能に組み付けされる。前記ロック手段８は、栓体５のロックボタン１０及び係止環１１と蓋体７の係止リブ７ｃ及び係止片７ｄとで構成され、閉位置に回動した蓋体７の係止片７ｄにロックボタン１０が係合し、さらに係止リブ７ｃに係止環１１を掛け止めることによって蓋体７の全閉状態が保持される。また、全閉状態の蓋体７を開けるには、係止リブ７ｃに掛け止めした係止環１１を外し、ロックボタン１０の下側を押して該ロックボタン１０と係止片７ｄとの係合を解除することにより、蓋体７が自身の持つ弾性部材１４の弾発力によって開口方向へ付勢されるようになっている。
【００１６】
栓体５の飲み口５ｄは、天板５ｃから飲用者が口に含むのに適した太さで蓋体７に覆われる高さの略円柱状に突設されており、その内部を飲料の注出口１６としている。飲み口５ｄの上端面５ｆは、飲み口５ｄの中心軸Ｌ２と直交する線Ｌ３よりもヒンジ６側が角度θ１分低くなるように傾斜していて、蓋体７の天板７ｂと略同じ角度で、ロック手段８側が高くヒンジ６側が低いテーパ状に形成されている。空気孔１２は、容器本体２の内部と栓体５の外部とに連通する小孔で、容器本体２内の空気を飲料の増減に伴って給排し、飲み口５ｄを飲料が良好に流通できるようにしている。
【００１７】
飲み口５ｄの上端面５ｆは、ロック手段８側の最高点とヒンジ６側の最低点とが、前述の直交方向線Ｌ３上に位置し、さらの直交方向線Ｌ３はロック手段８のロックボタン１０とを結ぶ前述の直線Ｌ１と一致して設けられており、このような構成によって、飲み口５ｄを蓋体７で覆った閉栓時に、蓋体７のパッキン１３が上端面５ｆを隙間なくシールして飲料の漏出がないようにしている。
【００１８】
なお、上端面５ｆの傾斜角度θ１は、５〜３０度の範囲が適当であり、５度以下では減少した飲料を飲む際の飲用者がその姿勢に負担を感じるようになり、また３０度以上では、上端面５ｆがかなり突出した形状となって外観上好ましくない。
【００１９】
蓋体７のパッキン１３は、飲み口５ｄの上端面５ｆよりも大径な球面状に形成されており、蓋体７を全閉した際には、飲み口５ｄの上端面５ｆに弾接して液密にシールするようになっている。弾性部材１４は、蓋体７を開方向へ付勢する従来の金属製のばねに代わるもので、シリコン等の軟質合成樹脂やゴム等の非金属製材料で有底円筒状に形成されており、上部開口を天板７ｂの内面に突設した円筒状のボス部７ｇに嵌合して蓋体７に装着されている。
【００２０】
弾性部材１４の長さは、蓋体７の全閉位置よりもやや手前に回動した時点で、その下端が栓体５の天板５ｃに当接するよう設定されており、蓋体７を全閉した際には、弾性部材１４が軸方向に縮小して下端が空気孔１２を直交方向に液密に閉塞する。また、ロック手段８による蓋体７の全閉状態を解除した際には、弾性部材１４が軸方向に伸張して蓋体７を開方向へ弾発し、弾性部材１４の下端が空気孔１２から離れて、空気孔１２が開放される。弾性部材１４内の空洞部１７は、ボス部７ｇの一側部に形成したスリット１８を通して外部と連通しており、蓋体７の開閉に伴う弾性部材１４の伸縮を良好に行えるようにしている。
【００２１】
栓体５のガイドリブ５ｅには、反ロック手段側の外面に複数の係合リブ５ｇが形成されており、ロック手段８の解除操作によって弾性部材１４に弾発される蓋体７は、天板７ｂの爪片７ｆが係合リブ５ｇの間に係合して、蓋体７を１８０度以上の開位置に保持するようになっている。
【００２２】
本形態例は、以上のように構成されており、ロック手段８を用いて蓋体７を全閉した状態では、飲み口５ｄの上端面５ｆをパッキン１３が液密にシールし、空気孔１２を弾性部材１４が液密にシールしている（ 図２）。また、ロック手段８を解除操作すると、弾性部材１４が蓋体７を弾発してヒンジ軸１５回りに開方向へ付勢し、栓体５の真横へ回動した蓋体７が爪片７ｆと係合リブ５ｇとの係合によってロックされ、栓体５の上方が開放される（ 図３）。
【００２３】
そして、容器本体２内の飲料を飲む場合には、飲み口５ｄを飲用者側に、また開状態の蓋体７を飲用者とは反対側に向けながら、飲み口５ｄに口をつけて容器本体２を飲用者側に傾けることにより、容器本体２内の飲料が飲み口５ｄより流出していく（ 図１）。
【００２４】
本形態例はこのように、飲み口５ｄを、栓体５の天板５ｃから筒状に突出させた形状であるため、飲用者が口の小さな子どもであったり、乗物等の振動のある場所で飲む場合にも、飲料が口の外へみだりに流れ出て衣服を濡らす虞がない。また、飲み口５ｄは、ストローやチューブのような吸引タイプではないので、冷温いずれの飲料を飲む場合にも適している。
【００２５】
さらに、飲み口５ｄの上端面５ｆが、飲み口５ｄの中心軸Ｌ２との直交線Ｌ３上にあると、図１のように水平方向に傾けた容器本体２内の飲料をさらに飲む場合には、飲用者が顔を仰向けにして体をのけ反らせる姿勢を強いられることとなるが、本形態例の飲み口５ｄは、上端面５ｆを直交線Ｌ３より角度θ１でヒンジ側を低く傾斜させているため、飲用者はムリな姿勢をせずとも容器本体２の底部側を角度θ１分だけさらに持ち上げて飲料を流出させるだけの余裕があり、容器本体２内の飲料を容易に飲むことができる。したがって、容器本体２内の飲料Ｄが減少した場合には特に有効である。
【００２６】
また、従来の金属製のばねに代えて、軟質合成樹脂やゴム等の非金属製の弾性部材１４で蓋体７を開き方向へ付勢するようにしたから、中栓３が洗浄等で水に濡れることがあっても錆ることはなく、衛生的に優れている。さらに、弾性部材１４を蓋体７側に設けたことにより、栓体５に不要な突出物がないので、飲用時に鼻が当たる等の不具合がない。また、この弾性部材１４で空気孔１２を閉塞するようにしたから、部品点数を削減して製造コストの低減が図れる。しかも、弾性部材１４を空気孔１２に対して直交方向に設けたので、空気孔１２を確実に閉塞することができる。
【００２７】
さらに、弾性部材１４を内部に空洞部１７を持つ有底円柱状とし、空洞部１７内の空気をボス部７ｇのスリット１８を通して外部へ自由に出入りできるようにしたので、蓋体７の開閉に伴う弾性部材１４の伸縮が良好に行えて、蓋体７を開方向へ付勢する機能と、空気孔１２を閉塞する機能とを長期間よく保つことができる。
【００２８】
また、飲み口５ｄの上端面５ｆにあっては、ロック手段８側の最高点とヒンジ６側の最低点とが、ロック手段８のロックボタン１０とを結ぶ直線Ｌ１上に位置するようにしたので、蓋体７を閉じた際には、パッキン１３から上端面５ｆに直交方向の力が働いて、上端面５ｆを隙間なく液密にシールするので飲料が漏出する虞がない。
【００２９】
図４は、本発明の参考例を示すもので、第１形態例と同形の飲み口２０を栓体５とは別体に形成し、該飲み口２０を栓体５の天板５ｃに突設した取り付け環５ｈに周方向へ回動可能に嵌着している。
【００３０】
飲み口２０の上端面２０ａは、取り付け環５ｈと飲み口２０の軸線Ｌ４と直交する線Ｌ５から角度θ２でカットされており、飲用者がこの上端面２０ａを周方向の好みの方向へ向けて自由なスタイルで飲むことができるようにしている。
【００３１】
なお、前述の形態例では、弾性部材で栓体の空気孔を塞ぐようにしたが、飲料用容器には空気孔を持たないものもあり、さらに飲料用容器に空気孔があっても、必ずしも弾性部材で空気孔を塞ぐことを限定しない。弾性部材は、内部を空洞とすることが望ましいが、充実形状とすることも妨げない。さらに、弾性部材をヒンジとロック手段とを結ぶ直線以外の場所に配設することも自由である。
【００３２】
【発明の効果】
以上説明したように、本発明の飲料用容器の中栓によれば、飲用者が口の小さな子どもであったり、乗物等の振動のある場所で飲む場合にも、飲料が口の外へみだり流れ出て衣服を濡らす虞がない。また、飲み口は、ストローやチューブのような吸引タイプではないので、冷温いずれの飲料を飲む場合にも適している。さらに、飲み口の上端面を、ロック手段側が高くヒンジ側が低いテーパ状に傾斜させたことにより、容器本体内の飲料を容易に飲むことができる。
【００３３】
また、従来の金属製のばねに代えて、軟質合成樹脂やゴム等の非金属製の弾性部材で蓋体を開き方向へ付勢するようにしたから、中栓を洗浄等で水に濡らすことがあっても錆ることはなく、衛生的にも優れている。この弾性部材を蓋体側に設けると、栓体に不要な突出物がないので、飲用時に鼻が当たる等の不具合がない。
【００３４】
さらに、弾性部材で空気孔を閉塞するようにしたことにより、専用部品を削減して製造コストの低減を図ることができる。また、弾性部材を空気孔に対して直交方向に設けることにより、空気孔の閉塞が確実に行える。さらに、弾性部材の内部を空洞化して内部空気を自由に出入りできるようにしたので、蓋体の開閉に伴う弾性部材の伸縮が良好に行えて、蓋体の弾発と空気孔の閉塞機能とをよく保つことができる。
【図面の簡単な説明】
【図１】 本発明の第１形態例を示す 図３のＩ−Ｉ断面図
【図２】 本発明の第１形態例を示す魔法瓶上部の断面図
【 図３】 本発明の第１形態例を示す魔法瓶の開蓋平面図
【 図４】 本発明の参考例を示す魔法瓶の要部拡大断面図
【符号の説明】
１…魔法瓶（本発明の飲料用容器）、２…容器本体、２ａ…内筒、２ｂ…外筒、３…中栓、４…断熱層、５…栓体、５ｂ…筒状部、５ｃ…天板、５ｄ…飲み口、５ｅ…ガイドリブ、５ｆ…飲み口５ｄの上端面、５ｇ…係合リブ、５…取り付け環、６…ヒンジ、７…蓋体、７ａ…筒状部、７ｂ…天板、７ｃ…係止リブ、７ｄ…係止片、７ｅ…二股腕、７ｇ…ボス部、８…ロック手段、１０…ロックボタン、１１…係止環、１２…空気孔、１３…パッキン、１４…弾性部材、１６…注出口、１７…空洞部、１８…スリット、２０…飲み口、２０ａ…飲み口２０の上端面[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an inner plug of various beverage containers such as a portable thermos bottle, a water bottle, and a sports drink container, and in particular, a beverage container capable of directly drinking a beverage in a container body by opening the lid with one touch. Regarding the internal plug.
[0002]
[Prior art]
As a prior art of a beverage container, there is one disclosed in, for example, Japanese Patent Application Laid-Open No. 2001-149236. In this prior art, a cylindrical stopper attached to an upper opening of a container body, and a hinge that is connected to the stopper by a hinge so as to be opened and closed, and covers a spout opening that opens to the top plate of the stopper. A lid, and a slide-type locking means for holding the lid in a fully closed state, and can directly drink the beverage in the beverage container by attaching a lip to the upper peripheral wall of the stopper that has released the lid. I can do it.
[0003]
[Problems to be solved by the invention]
However, the above-mentioned stopper body is formed in a funnel shape with a lower upper peripheral wall and the top plate is on the lower side thereof, so if the container is tilted when drinking, the beverage that has flowed out of the spout Since the peripheral wall diffuses toward the opening edge, and the flow rate from the spout is only to adjust the tilt of the container body, the drinker is a child with a small mouth or the vibration of the vehicle etc. If you drink in a place where there is water, the beverage may flow out of your mouth and wet your clothes.
[0004]
In addition, the lock means incorporates a metal compression coil spring to keep the lid fully closed, but the inner stopper of the beverage container is removed from the container body before and after use and cleaned. Therefore, it is desirable to avoid as much as possible from a hygienic viewpoint that metal parts that may cause rust due to moisture adhesion.
[0005]
As a countermeasure, it is conceivable to provide an elastic tube or straw as a mouthpiece on the stopper, but these are not suitable for hot drinks because they both suck and drink beverages.
[0006]
Japanese Patent Application Laid-Open No. 11-244158 discloses an inner stopper in which a cylindrical drinking mouth is provided on the top plate of the stopper body, and a movable cap is mounted on the drinking mouth so as to be movable up and down. The drinking mouth that has been opened is included in the mouth with the movable cap to drink the drink in the container body, but this drinking mouth has an upper end surface provided in a direction orthogonal to the central axis of the drinking mouth, In particular, in order to drink beverages in the container body that has been reduced in quantity, if the container body is tilted more than horizontal, it will force the drinker to have a gritty posture that turns his face up and curls the body, It is not preferable.
[0007]
The present invention has been made in the background of such a situation, and the object of the present invention is to be good in an easy posture regardless of a drinker, a drinking place, and a temperature of the beverage. An object of the present invention is to provide an inside stopper for a sanitary beverage container that can be drunk and does not rust when washed with water.
[0008]
[Means for Solving the Problems]
To achieve the above object, the present invention is, spout and stopper being deposited on the upper opening of the container body, can be opened or connected by a hinge to said closure member is opened to the top plate of the plug body A lid for liquid-tightly covering the lid, and a beverage container with a locking means for holding the fully closed state of the lid on the opposite side of the hinge,
A cylindrical drinking mouth protrudes from the top surface of the top plate of the stopper, and the inside of the drinking mouth serves as the spout, and the upper end surface of the drinking mouth is tapered so that the locking means side is high and the hinge side is low. When the boss is integrally formed on the lid, and an elastic member formed of a non-metallic material is fitted to the boss, and when the lid is fully closed The elastic member fitted to and attached to the boss portion is in a state of elastic contact with the plug body, and when the locking means is released, the lid body is urged in an opening direction, An air hole is provided in the top plate, and the elastic member is provided at a position to close the air hole when the lid is fully closed.
[0009]
As another means of the present invention, before Symbol elastic member is characterized by closing the air hole in the orthogonal direction. Further, the elastic member has a hollow inside, and air can freely enter and leave the hollow portion.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to a portable thermos will be described in detail with reference to the drawings.
[0011]
1 to 3 show a first embodiment. The thermos bottle 1 includes a metal container body 2 and a synthetic resin inner plug 3 attached to the upper opening of the container body 2. Yes. The container body 2 has a heat insulating double structure in which the upper opening edges of the inner cylinder 2a and the outer cylinder 2b are integrally joined, and the space between the inner cylinder 2a and the outer cylinder 2b is a vacuum heat insulating layer 4. A male screw 2c for screwing the inner plug 3 is formed on the upper outer periphery of the tube 2b.
[0012]
The inner plug 3 is connected to a plug body 5 which is attached to the upper opening of the container body 2 by screwing a female screw 5a to the male thread 2c of the outer cylinder 2b, and is connected to the plug body 5 by using a hinge 6 so as to be opened and closed. And a locking means 8 that holds the fully closed state of the lid body 7 on the side opposite to the hinge 6.
[0013]
The plug body 5 is formed in an inverted bottomed cylindrical shape in which a top plate 5c that covers the upper opening of the container body 2 is provided on the upper surface of the cylindrical portion 5b that surrounds the upper outer periphery of the outer cylinder 2b. A seesaw type lock button 10 and a locking ring 11 which are constituent members of the lock means 8 are provided on one side of 5b. Further, a drinking mouth 5d is provided on one side of the top plate 5c, and a guide rib 5e that is a component of the hinge 6 is provided on the other side of the top plate 5c. Further, the drinking mouth 5d and the guide rib 5e are provided. An air hole 12 is formed between the drinking hole 5d and the air hole 12 on a straight line L1 connecting the guide rib 5e and the lock button 10.
[0014]
The lid body 7 is formed in an inverted bottomed cylindrical shape having a cylindrical portion 7a continuous above the cylindrical portion 5b of the plug body 5 and a top plate 7b that closes the upper surface of the cylindrical portion 7a. Furthermore, the one side portion where the locking means 8 is located is high and the other side where the hinge 6 is located is low. The cylindrical portion 7a is provided with a locking rib 7c and a locking piece 7d as constituent members of the locking means 8 on one side, and a bifurcated arm 7e constituting the hinge 6 on the other side and an open state. A claw piece 7f to be held is formed, and a packing 13 and an elastic member 14 are arranged on a straight line L1 connecting the guide rib 5e of the hinge 6 and the lock button 10 of the locking means 8 inside the top plate 7b. Has been.
[0015]
The hinge 6 is configured by sandwiching the guide rib 5e of the plug body 5 with the bifurcated arm 7e of the lid body 7 and inserting the hinge shaft 15 therethrough, and the lid body 7 is formed by the hinge 6 on the upper part of the plug body 5. It is assembled so that it can be opened and closed. The locking means 8 includes a lock button 10 and a locking ring 11 of the plug body 5, a locking rib 7 c and a locking piece 7 d of the lid body 7, and the locking piece of the lid body 7 rotated to the closed position. When the lock button 10 is engaged with 7d and the engagement ring 11 is engaged with the engagement rib 7c, the fully closed state of the lid body 7 is maintained. Further, in order to open the lid 7 in the fully closed state, the locking ring 11 latched on the locking rib 7c is removed, and the lower side of the lock button 10 is pushed to engage the lock button 10 and the locking piece 7d. Is released, the lid 7 is urged in the opening direction by the elastic force of the elastic member 14 that the lid 7 has.
[0016]
The drinking mouth 5d of the plug body 5 protrudes from the top plate 5c into a substantially cylindrical shape having a thickness suitable for the drinker to include in the mouth and covered with the lid body 7, and the inside of the drinking mouth 5d A spout 16 is provided. The upper end surface 5f of the drinking mouth 5d is inclined so that the hinge 6 side is lower by an angle θ1 than the line L3 orthogonal to the central axis L2 of the drinking mouth 5d, and is substantially the same angle as the top plate 7b of the lid 7. The lock means 8 is high and the hinge 6 is low in taper. The air hole 12 is a small hole that communicates with the inside of the container body 2 and the outside of the stopper body 5. The air in the container body 2 is supplied and discharged as the amount of beverage increases or decreases, and the beverage flows through the drinking hole 5 d well. I can do it.
[0017]
The upper end surface 5f of the drinking mouth 5d is such that the highest point on the locking means 8 side and the lowest point on the hinge 6 side are located on the orthogonal direction line L3, and the further orthogonal direction line L3 is the lock button of the locking means 8 10 is provided so as to coincide with the above-mentioned straight line L1 connecting with the lid 10. With such a configuration, the packing 13 of the lid 7 seals the upper end surface 5f without a gap when the drinking mouth 5d is covered with the lid 7. In this way, there is no leakage of beverage.
[0018]
In addition, the inclination angle θ1 of the upper end surface 5f is suitably in the range of 5 to 30 degrees, and if it is less than 5 degrees, the drinker feels a burden on the posture when drinking the reduced drink, and more than 30 degrees. Then, the upper end surface 5f has a considerably protruding shape, which is not preferable in appearance.
[0019]
The packing 13 of the lid body 7 is formed in a spherical shape having a larger diameter than the upper end surface 5f of the drinking mouth 5d. When the lid body 7 is fully closed, the packing 13 elastically contacts the upper end face 5f of the drinking mouth 5d. It is designed to be liquid-tight. The elastic member 14 replaces a conventional metal spring that biases the lid 7 in the opening direction, and is formed in a bottomed cylindrical shape with a soft synthetic resin such as silicon or a non-metallic material such as rubber. The upper opening is fitted to the lid 7 by fitting into a cylindrical boss 7g projecting from the inner surface of the top plate 7b.
[0020]
The length of the elastic member 14 is set so that the lower end of the elastic member 14 comes into contact with the top plate 5c of the plug body 5 when the lid body 7 rotates slightly before the fully closed position. When closed, the elastic member 14 shrinks in the axial direction and the lower end closes the air hole 12 in a liquid-tight manner in the orthogonal direction. Further, when the fully closed state of the lid body 7 by the locking means 8 is released, the elastic member 14 extends in the axial direction and repels the lid body 7 in the opening direction, and the lower end of the elastic member 14 extends from the air hole 12. At a distance, the air hole 12 is opened. The hollow portion 17 in the elastic member 14 communicates with the outside through a slit 18 formed in one side portion of the boss portion 7g, so that the elastic member 14 can be expanded and contracted appropriately when the lid body 7 is opened and closed. .
[0021]
A plurality of engaging ribs 5g are formed on the outer surface on the side opposite to the locking means on the guide rib 5e of the plug body 5, and the lid body 7 that is repelled by the elastic member 14 by the releasing operation of the locking means 8 is A claw piece 7f of 7b is engaged between the engagement ribs 5g to hold the lid 7 at an open position of 180 degrees or more.
[0022]
This embodiment is configured as described above. When the lid 7 is fully closed using the lock means 8, the packing 13 seals the upper end surface 5f of the drinking mouth 5d in a liquid-tight manner, and the air hole 12 Is sealed in a liquid-tight manner by the elastic member 14 (FIG. 2). Further, when the locking means 8 is released, the elastic member 14 repels the lid body 7 and biases it in the opening direction around the hinge shaft 15, and the lid body 7 rotated to the side of the plug body 5 becomes the claw piece 7f. Locked by engagement with the engagement rib 5g, the upper part of the plug body 5 is opened (FIG. 3).
[0023]
And when drinking the drink in the container main body 2, the mouth is attached to the drinking mouth 5d while the drinking mouth 5d is directed to the drinker side and the open lid 7 is directed to the side opposite to the drinker. By tilting the main body 2 toward the drinker, the beverage in the container main body 2 flows out from the drinking mouth 5d (FIG. 1).
[0024]
In this embodiment, the drinking mouth 5d is shaped like a cylinder protruding from the top plate 5c of the plug body 5 as described above, so that the drinker is a child with a small mouth or a place where there is vibration of a vehicle or the like. There is no risk that the beverage will flow out of the mouth and wet the clothes. Moreover, since the drinking mouth 5d is not a suction type like a straw or a tube, it is suitable for drinking cold or hot beverages.
[0025]
Further, when the upper end surface 5f of the drinking mouth 5d is on a line L3 orthogonal to the central axis L2 of the drinking mouth 5d, when drinking a beverage in the container body 2 inclined in the horizontal direction as shown in FIG. 1, In this embodiment, the drinking mouth 5d has the upper end surface 5f inclined at an angle θ1 lower than the orthogonal line L3 and lowering the hinge side. Therefore, the drinker can afford to drink the beverage in the container body 2 easily without lifting the beverage by lifting the bottom side of the container body 2 by the angle θ1 and without causing the beverage to flow out. . Therefore, it is particularly effective when the beverage D in the container body 2 is reduced.
[0026]
Further, since the lid 7 is biased in the opening direction by a non-metallic elastic member 14 such as a soft synthetic resin or rubber instead of the conventional metal spring, the inner plug 3 is washed with water or the like. Even if it gets wet, it does not rust and is hygienic. Furthermore, since the elastic member 14 is provided on the lid body 7 side, there is no unnecessary protrusion on the plug body 5, so that there is no inconvenience such as contact with the nose during drinking. Further, since the air hole 12 is closed by the elastic member 14, the number of parts can be reduced and the manufacturing cost can be reduced. Moreover, since the elastic member 14 is provided in a direction orthogonal to the air holes 12, the air holes 12 can be reliably closed.
[0027]
Furthermore, the elastic member 14 has a bottomed cylindrical shape having a hollow portion 17 inside, and air inside the hollow portion 17 can freely enter and exit outside through the slit 18 of the boss portion 7g. The accompanying elastic member 14 can be expanded and contracted satisfactorily, and the function of urging the lid 7 in the opening direction and the function of closing the air holes 12 can be maintained well for a long period of time.
[0028]
Further, on the upper end surface 5f of the drinking mouth 5d, the highest point on the locking means 8 side and the lowest point on the hinge 6 side are positioned on a straight line L1 connecting the lock button 10 of the locking means 8. Therefore, when the lid 7 is closed, a force in the orthogonal direction is applied from the packing 13 to the upper end surface 5f, and the upper end surface 5f is sealed in a liquid-tight manner without any gaps, so that there is no risk of the beverage leaking.
[0029]
FIG. 4 shows a reference example of the present invention. A drinking mouth 20 having the same shape as that of the first embodiment is formed separately from the stopper body 5, and the drinking mouth 20 protrudes from the top plate 5 c of the stopper body 5. The mounting ring 5h is fitted so as to be rotatable in the circumferential direction.
[0030]
The upper end surface 20a of the drinking mouth 20 is cut at an angle θ2 from a line L5 orthogonal to the attachment ring 5h and the axis L4 of the drinking mouth 20, and the drinker points the upper end face 20a in a preferred direction in the circumferential direction. It allows you to drink in a free style.
[0031]
In the above-described embodiment, the air hole of the plug is closed with the elastic member. However, some beverage containers do not have air holes, and even if the beverage container has air holes, It is not limited to closing the air hole with the elastic member. It is desirable that the elastic member has a hollow inside, but it does not prevent the elastic member from having a solid shape. Furthermore, it is also free to dispose the elastic member at a place other than the straight line connecting the hinge and the locking means.
[0032]
【The invention's effect】
As described above, according to the inside plug of the beverage container of the present invention, even when the drinker is a child with a small mouth or drinks in a place where there is vibration such as a vehicle, the beverage goes out of the mouth. There is no danger of running out and getting wet. Moreover, since the drinking mouth is not a suction type like a straw or a tube, it is suitable for drinking cold or hot beverages. Furthermore, the beverage in the container body can be easily drunk by inclining the upper end surface of the drinking mouth in a tapered shape having a high locking means side and a low hinge side.
[0033]
In addition, instead of the conventional metal spring, the lid is urged in the opening direction with a non-metallic elastic member such as soft synthetic resin or rubber. Even if there is, it does not rust and is excellent in hygiene. If this elastic member is provided on the lid side, there is no unnecessary protrusion on the plug, so there is no problem such as a nose hitting when drinking.
[0034]
Further, since the air hole is closed with the elastic member, the dedicated parts can be reduced and the manufacturing cost can be reduced. Further, by providing the elastic member in a direction perpendicular to the air holes, the air holes can be reliably closed. Furthermore, since the inside of the elastic member is hollowed so that the internal air can freely enter and exit, the elastic member can be expanded and contracted with the opening and closing of the lid, and the elasticity of the lid and the function of closing the air hole Can keep well.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view taken along the line II in FIG. 3 showing a first embodiment of the present invention. FIG. 2 is a cross-sectional view of an upper portion of a thermos showing a first embodiment of the present invention. Fig. 4 is an enlarged cross-sectional view of a main part of a thermos showing a reference example of the present invention.
DESCRIPTION OF SYMBOLS 1 ... Thermos (beverage container of this invention), 2 ... Container main body, 2a ... Inner cylinder, 2b ... Outer cylinder, 3 ... Inner plug, 4 ... Heat insulation layer, 5 ... Plug body, 5b ... Cylindrical part, 5c ... Top plate, 5d ... drinking mouth, 5e ... guide rib, 5f ... upper end surface of drinking mouth 5d, 5g ... engagement rib, 5 ... mounting ring, 6 ... hinge, 7 ... lid, 7a ... cylindrical portion, 7b ... top Plate, 7c ... Locking rib, 7d ... Locking piece, 7e ... Forked arm , 7g ... Boss part, 8 ... Locking means, 10 ... Lock button, 11 ... Locking ring, 12 ... Air hole, 13 ... Packing, 14 DESCRIPTION OF SYMBOLS ... Elastic member, 16 ... Spout, 17 ... Cavity, 18 ... Slit, 20 ... Drinking mouth, 20a ... Upper end surface of drinking mouth 20

Claims (3)

容器本体の上部開口に被着される栓体と、該栓体にヒンジにて開閉可能に連結され、前記栓体の天板に開口する注出口を液密に覆う蓋体とを備え、前記ヒンジと反対側に前記蓋体の全閉状態を保持するロック手段を備えた飲料用容器の中栓において、
前記栓体の前記天板上面に筒状の飲み口を突出して設け、該飲み口の内部を前記注出口となすとともに、該飲み口の上端面を前記ロック手段側が高くヒンジ側が低いテーパ状にカットすると共に、前記蓋体に一体にボス部を突設し、該ボス部に非金属製材料により形成した弾性部材を嵌合装着したものであって、前記蓋体を全閉した際には、前記ボス部に嵌合装着された前記弾性部材が、前記栓体に弾接する状態とし、前記ロック手段を解除した際には、前記蓋体を開方向へ付勢するようにし、前記栓体の前記天板に空気孔を設け、前記弾性部材を前記蓋体が全閉した際に前記空気孔を閉塞する位置に設けたことを特徴とする飲料用容器の中栓。A stopper attached to the upper opening of the container main body, and a lid that is connected to the stopper so as to be openable and closable by a hinge, and covers the spout opening that opens to the top plate of the stopper. In the inside stopper of the beverage container provided with a locking means for holding the fully closed state of the lid on the side opposite to the hinge,
A cylindrical drinking mouth protrudes from the top surface of the top plate of the stopper, and the inside of the drinking mouth serves as the spout, and the upper end surface of the drinking mouth is tapered so that the locking means side is high and the hinge side is low. When the boss is integrally formed on the lid, and an elastic member formed of a non-metallic material is fitted to the boss, and when the lid is fully closed The elastic member fitted to and attached to the boss portion is in a state of elastic contact with the plug body, and when the locking means is released, the lid body is urged in an opening direction, An air plug is provided in the top plate, and the elastic member is provided at a position to close the air hole when the lid is fully closed. 前記弾性部材は、前記空気孔を直交方向に閉塞することを特徴とする請求項１に記載の飲料用容器の中栓。  2. The inside plug of a beverage container according to claim 1, wherein the elastic member closes the air hole in an orthogonal direction. 前記弾性部材は内部が空洞であり、該空洞部に空気が出入り自由であることを特徴とする請求項１又は２に記載の飲料用容器の中栓。  The inside plug of the beverage container according to claim 1 or 2, wherein the elastic member has a hollow inside, and air can freely enter and leave the hollow portion.
JP2002010119A 2002-01-18 2002-01-18 Inner cap for beverage containers Expired - Lifetime JP3937428B2 (en)

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JP2002010119A JP3937428B2 (en) 2002-01-18 2002-01-18 Inner cap for beverage containers
US10/339,768 US20030136783A1 (en) 2002-01-18 2003-01-08 Plug of a container for holding beverage
CNB2006101682412A CN100542905C (en) 2002-01-18 2003-01-08 The middle bolt of beverage-container
CN03100074A CN1432512A (en) 2002-01-18 2003-01-08 Middle bolt of beverage container
TW092100390A TWI298247B (en) 2002-01-18 2003-01-09 Plug of a container for holding beverage

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US20030136783A1 (en) 2003-07-24
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TW200302069A (en) 2003-08-01
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