JP3752205B2 - Foam jet pump container - Google Patents

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JP3752205B2
JP3752205B2 JP2002217652A JP2002217652A JP3752205B2 JP 3752205 B2 JP3752205 B2 JP 3752205B2 JP 2002217652 A JP2002217652 A JP 2002217652A JP 2002217652 A JP2002217652 A JP 2002217652A JP 3752205 B2 JP3752205 B2 JP 3752205B2
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air
cylinder
liquid
container
piston
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JP2004057891A (en
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悦也 多田
伸一 馬場
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河野樹脂工業株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は、シャンプー、ハンドソープ、洗顔料、整髪料、ひげ剃り剤等の充填された容器の口部に取付け、そのヘッドを上下動させて該容器内の液体を吸い上げるとともに容器外の空気を該液体に混合して泡状化し、これをノズルより噴射する泡噴出ポンプ容器の構造に関する。
【0002】
【従来技術】
容器の口部に取り付けられたポンプ装置において、そのヘッド部分を上下に往復動させ、該装置内に組み込まれた液体用ポンプと空気用ポンプを同時に作動させ、該液体ポンプの下部より容器底部にまで垂下した吸液パイプを介して容器内の液体をポンプ上方の混合室に吸い上げるとともに、空気用ポンプによって該混合室に空気を導入して前記の液体と混合し、よって、これを泡状態として噴出する泡噴出ポンプには種々の技術的な問題点があり、既に、各種の改良がなされているが、なお、問題が残存するのが現状である。
【0003】
その一つとして、ヘッドを押し下げ、空気用ピストン体を下降させて空気を吐出した後、該ピストンが上昇するときには該シリンダ内が負圧になるので、これを解消するためには空気導入用逆止弁を該ピストンに付設することが必要で、これについての種々の開示がある。例えば、実開平4−134456号は空気ピストンの一部に玉弁を付設したもの、実開平6−69161号、特開2002−86029(図10)は「筒状部と該筒状部から外方に延びる薄肉の円環状外方弁部と該筒状部から内方に延びる薄肉の円環状内方弁部とを兼ね備えた弾性弁体(V)」を空気用ピストンに付設する技術を開示している。この後者によれば空気用ピストンの降下中においてはシリンダ内の空気が該円環状内方弁部を押し上げて気液混合室Cに入り、また、該ピストンの上昇中には外気がaの間隙を通って細孔F,Eよりシリンダと容器本体内に導入されることになる。この弁構造においてはピストンの構造が複雑で組み立ても煩瑣であり、前記の弁部の柔軟性、復元性などに問題があると思われる。
【0004】
また、ヘッドを上下に往復動させると容器内の液体は液体用ポンプによって吸い上げられ、次第に容器内の負圧が大きくなり、やがて、吸液が困難になる。これを防止するための装置としては空気シリンダの側壁に小径の穴を明けて容器本体内との連通を図るのが一般的である。
【0005】
このような空気孔による容器内の導入構造として前記の特開2002−86029には、該ポンプの空気用ピストンが上端にあるときは、そのピストンの摺動シール部Sが該ポンプ内と容器本体間を連通する空気孔Eを閉ざす位置にあり、該空気用ピストンが押し下げられると前記空気孔Eが開放され、外気を容器本体B内に導入する構成を開示している(図10)。これによると、押下げヘッドが下降した状態、すなわち、製造工場から消費者の手にわたるまでの間は前記の容器本体と空気用シリンダとの連通穴が閉ざれず、シリンダ内に漏洩する可能性がある。
【0006】
更には、容器内の液体と空気との均一な混合を図るために、該気液混合室の上方にメッシュを付設して発泡液の細分化を促すのが一般的である。
【0007】
【発明が解決しようとする課題】
本発明は、上記泡噴出ポンプ容器における問題点、すなわち、容器内の負圧を解消するための空気取り入れ穴における確実な漏液防止機構、空気用ポンプに適用する逆止弁の簡素化を課題とし、更には液体の均一発泡機構を提供しようとするものである。
【0008】
【課題を解決する手段】
本発明に係る泡噴出用ポンプ容器において、請求項1の発明は、同心円上に大径の空気用シリンダと小径の液体用シリンダを形成し、該液体用シリンダにはバルブシャフトとコイルスプリングを挿入してそれぞれのシリンダに気密、または液密に、かつ、摺動自在にピストンを嵌合し、該液体用シリンダには吸液パイプと逆止弁を、その上方には気液混合室を介して吐出用ノズル付き押下げヘッドを嵌合取着し、前記気液混合室に空気を圧入する空気用シリンダにはその外周面に容器への取付用フランジを周設した構成になり、該シリンダ部を容器内に挿通して前記フランジ部を容器本体口頸の上面に重ね合わせ、コンテナーキャップにより容器に取り付けてなる泡噴出ポンプ容器において、前記空気用シリンダの側壁に容器内と連通する空気流通孔2eを設け、一方、上端に穴閉塞筒体28aを張出し形成した筒状閉塞筒体28を該穴閉塞筒体28aが空気用シリンダ上部の筒状体部2bに摺動自在に内嵌し、かつ、その筒状閉塞部材の内周に形成した内向きフランジ28bの内径が空気用ピストンロッド12に張出し形成した上限ストッパー12cの外径より内側に若干重なるように装着して、前記押下げヘッドをその下限位置まで降下させることによって該筒状閉塞筒体28aが摺動降下して前記空気流通孔を閉塞し、逆に、押下げヘッドをその上限位置まで上昇させることによって該空気流通孔2eを開口する構造として、容器本体内と空気用シリンダ内の空気の流通を図った。
0009
【発明の実施の形態】
本発明の詳細について、図面を参照して説明する。図面は本発明の実施例を示したもので、図1は本発明に係る泡噴出ポンプの未使用状態、すなわち、そのヘッドが降下限度まで押し下げられた状態でコンテナキャップにより容器に装着する直前の形状を示したものであり、図2はバルブシャフトを、図3は該ポンプにおける液体用ピストン、図4は空気用ピストン、図5は整泡筒、図6は筒状閉塞部材、図7は本ポンプ装置のヘッドを該本体側のアッパーキャップとのねじ結合を解きかけた状態と該ヘット度が上昇した状態を左右に示したものである。これらの構成部品はスプリングおよびボールを除いて殆どが軟質ないし半硬質のプラスチックを素材として製造される。図には従来例を示した。
0010
先ず、図1のポンプ1において、上部が開口し、その開口部よりやや下部外周に取付用フランジ2aを形成したポンプ本体2は、その開口部の直径よりやや小径の空気用シリンダ21と、それと同心円上に更に小径の液体用シリンダ22を形成したものである。すなわち、ポンプ本体2は前記の筒状体部2bにおいて取付用フランジ2aより上方に延びる部分の外周に係合突条2cを形成し、また、その筒状体部2bより下方に連続して空気用シリンダ21を、更にその空気用シリンダ21の底面から若干小径になる中高状隆起部2dを設けて再びより小径の液体用シリンダ22を下方に延設し、その液体用シリンダ22の下端近くに一層の小径となる段部23と漏斗状傾斜面になる弁座24を経て吸液パイプ嵌合筒25を形成した形状になるものである。
0011
コンテナキャップ3は筒状体の上端内径側に内向フランジ3aを張設するとともに該筒状胴部には雌ねじ3bを形成している。このコンテナキャップ3は前記ポンプ本体2の上方筒状体部2b上端より嵌合され、したがって、その内向フランジ3aが筒状体部2bに形成の取付用フランジ2aに重ね合わされることになる。更に、コンテナキャップ3の内向フランジ3aの上面を抑えるように次記のアッパーキャップ4が嵌合される。
0012
すなわち、アッパーキャップ4はその最外胴壁4aの内周面に凸条4bを周設し、その内側の第二周壁4cとの間に前記ポンプ本体2の筒状体部2b上端部を嵌合せしめて前記の係合突条2cと該凸条4bを互いに乗り越えさせ、容易に離脱せず、且つ、回動自在に組み合わされる。これによって予め挿着されたコンテナキャップ3の離脱を防止する。このアッパーキャップ4には更に小径の内周壁4dが下垂されており、その周壁4dの下端面が後記の筒状閉塞部材28の上昇限を決めるストッパーとなっている。また、アッパーキャップ4の上端には雄ねじ4eが形成され、押下げヘッド5の雌ねじ5cと螺合することになる。
0013
前記液体用シリンダ22の底部に形成した弁座24にはボールを装入して第一逆止弁6を構成している。
0014
図2に示すバルブシャフト7は、上半部7aを小径としてその上端に若干拡径した拡径部7cを形成し、下半部7bは前記上半部7aより若干その直径を大としてその下端に台座フランジ7dを形成したものである。更に、この台座フランジ7dの裏面を入り口とし、前記下半部7bの側面を出口とする液通路7eが開設されている。このバルブシャフト7を該台座フランジ部7dが下方になるようにして前記液体シリンダ22内に挿通し、前記段部23上に載置され、その台座フランジ7d上にコイルスプリング27が上方付勢状態で挿入される。なお、バルブシャフト7の上端に突出する7gはプラスチック成形時のゲート跡で特別な意味を有しない。
0015
中空状の液体用ピストンロッド9は、その内径内の上方近くに上拡がり状傾斜面になる弁座9vを設け、ここにボール10を装着して第二逆止弁用弁11とし、該ピストンロッド9の中間部外周にはその周縁に上向きの周壁9aを突設したフランジ状の下限ストッパー9bを形成したものである。この液体用ピストンロッド9にはその下端に図3に示すようなH形断面でリング状になる液体用ピストン8を嵌合させ、その底面部8aに前記のコイルスプリング27の上端を当接させてその付勢に抗して液体用シリンダ22に気密に、且つ、摺動自在に嵌入される。この場合、液体用ピストン8の内径8bは前記バルブシャフト7上端の拡径部7cの直径より若干小径であり、かつ、上半部7aの直径より大に形成されており、その組立時には該バルブシャフト7の拡径部7cを強制的に通過させるものである。これによって、その液体用ピストン8が上昇限に達したときにその内径8bが前記拡径部7cに液密に当接することになって液体の上下方向への流通を阻止し、液体用ピストン8が下降するとその内径8bとバルブシャフト7の上半部7a直径との間隙が液体通路となる。次いで該ピストン8が下降限に達したときにはその内径8bの下端周縁が下半部7bの肩部7hに当接して該液体用シリンダ22内の液体はそれより上下に流動することがなくなる。
0016
弁座9vにボール10が装入された液体用ピストンロッド9には、空気用ピストンロッド12がその嵌合面において空気の流通間隙を設けて嵌合される。この空気流通用間隙12aを設けるために、空気用ピストンロッド12の内径面(または液体用ピストンロッド9の外径面)には細い縦リブを、また、その嵌合部上端の段部12kには放射状リブ(図示してない)を形成するなどにより、その液体用ピストンロッド9と空気用ピストンロッド12の嵌合面を完全には密着させず、かつ、容易に抜けない程度に嵌合されている。しかも、その空気用ピストンロッド12の下端12dは液体用ピストンロッド9に形成された下限ストッパー9bの上面に密接することなくそこに若干の間隙を残して前記の空気流通用間隙12aへの空気導入口9cとしている。
0017
この空気用ピストンロッド12には前記液体用ピストンロッド9との嵌合部の上端段部12k直上に流液孔12eを有する隔壁12fが内設され、更に上方の小径部分には後記の整泡筒16が2個載置されて、そこに押下げヘッド5から下垂した送液管5aが外嵌されている。この隔壁12fより上方で該整泡筒16までの径内が気液混合室13となる。前記整泡筒16は筒状体の一方の開口面にメッシュ15を貼り付けたものであり、二個をそのメッシュ15側を両端にして重ね合わせた状態で空気用ピストンロッド上に載置した状態で整泡室とされている。更に、その空気用ピストンロッド12の下端より若干上方に下向きに突設された周壁12bを有するフランジ状の上限ストッパー12cが形成されている。
0018
空気用ピストン14は、前記の空気用ピストンロッド12の下端部外径に気密に、且つ摺動自在に嵌合する摺動筒14cを中央に配し、その外周に通気孔14dを開設したブリッジ14b部を介して円筒状胴部14aを下垂形成し、その円筒状胴部の下端外周に拡径フランジ14eを介して空気用シリンダ21に気密に嵌合し摺動する直径の摺動シール部14fを周設した構成である。なお、後記の押下げヘッドの作動に伴い、円筒状胴部14aの上端外周14iは前記の上限ストッパー12cの周壁12bに気密に当接ないし嵌合し、下端外周14hは液体用ピストンロッド9に形成した下限ストッパーの周壁9aに気密に当接ないし嵌合する直径に形成されており、後記のように、この摺動筒14cが上下方向に移動し、円筒状胴部14aの上端外周14i、摺動筒14cの下端外周14hと上下ストッパー周壁(12c、9a)との接離が空気用の弁作用をなし、気液混合室13に空気を送り、或いは、空気用ピストン14の内外の通気を遮断または開放するのである。
0019
上記ポンプ本体2の開口部より下方で空気用シリンダより上方の筒状体部2b側壁には空気流通孔2eが開設されており、該ポンプ本体2の内部と容器B内の空気が流通できる構成とし、しかも、この空気流通孔2eは次に説明する筒状閉塞部材28の上端に形成した穴閉塞筒8aによって開閉せられる。すなわち、図6に示すように筒状閉塞部材28は前記空気流通孔2e開設部位の筒状体部2b内径と液密な外径になる穴閉塞筒体28aおよび前記空気用ピストンロッド12に形成した上限ストッパー12cに当接する内向きフランジ28bを形成したフランジ付き円筒状のもので、前記の空気用ピストン14が空気用シリンダ21に挿通された後にポンプ本体上部から該シリンダの筒状体部2bに挿通嵌合される。
0020
空気用ピストンロッド12の上端には前記の片面にメッシュ15を貼り付けた2個の整泡筒16、16(図5)が載置され、更に、その上方から液体吐出ノズル5bを一体的に形成した押下げヘッド5がその嵌合筒5aを嵌合して固定される。
0021
以上の構造になる本泡噴出用ポンプ1はその液体用シリンダ22の下端の吸液パイプ結合筒25に吸液パイプ26を挿着して容器B内にその本体部分を挿入し、該本体に形成の取付用フランジ2a部を容器口端にパッキングPを介して載置し、コンテナーキャップ3によりこれを締め付けることによって該容器に装着される。この容器Bには発泡性液体が充填せられており、本泡噴出用ポンプ1はヘッドを下限位置にまで押し下げられた状態で取り付けられる。したがって、液体用ピストン8、空気用ピストン14はともに下限位置にあって液体用ピストン8の内径とバルブシャフト7の拡径部7bの肩部7hとが当接して気密を保ち、また、空気用ピストン14は、その円筒状胴部14aの上端外径14iを空気用ピストンロッドの上限ストッパー12cに形成した周壁12bに気密に接触(または嵌合)しており、下端の摺動シール部14fも気密を保っていることから該空気用ピストン14の内外における空気流通は遮断されている。さらに、筒状閉塞部材28は空気用ピストンロッド12に形成した上限ストッパー12cにより該内向きフランジ28bを押し下げ、その穴閉塞筒体28aが前記空気用シリンダ内と容器B内との空気流通孔2eを遮蔽する(図7左側断面図で矢印a−b)。したがって、たとえ容器が転倒しても容器内の液体が空気用シリンダ内に浸入することはない。
0022
上記のように容器に取り付けられた本発明に係る泡噴出用ポンプ容器の使用を説明する。本発明に係る泡噴出ポンプ容器は未使用状態では図7の左側断面図に示すように押下げヘッドが下限位置にある。この状態から押下げヘッド5とアッパーキャップ4とのねじ部4eの結合を解くと液体用ピストン8はコイルスプリング27の付勢によって上昇し、それと共に液体用ピストンロッド9およびそれに嵌合する空気用ピストンロッド12も一体に上昇し、容器B内の液体が汲み上げられる。しかし、空気用ピストン14は空気用シリンダ21と接触している摺動シール部14fの摩擦抵抗により動きが遅れ、その摺動筒14c部分と空気用ピストンロッド12との間で滑りを生じる。この滑りが生じた瞬間に該空気用ピストン14の円筒状胴部14a上端の外周14iと上限ストッパー12cの周壁12bとの密接による気密が破れ、そこから通気孔14dを介して空気用ピストン14の内外間に空気の流通(図7における矢印d)が生じ、同一気圧になる。したがって、空気用ピストン14の上下間に該ピストンの上昇よる気圧差の発生がなくなる。
0023
更に、この摺動筒14c部分の滑りによって、該空気用ピストンロッド12との間で相対的に降下し、摺動筒14cの下端周縁14hが液体用ピストンロッド9に形成した下限ストッパー9bの周壁9aに気密に当接することになる。これによって、前記の空気流通用間隙12aへの空気導入口部9cが閉塞される(図7の右側断面図)。したがって、気液混合室13と空気用シリンダ21との空気の流通が閉ざされ液体用シリンダ内の液体が空気用シリンダ内に浸入することがなくなる。
0024
更に、押下げヘッド、空気用ピストン14等が上昇すると、液体用ピストン8の上端内周縁8bがバルブシャフト7の拡径部7cに液密に接触し、そこで液体シリンダ22内上下を液密に区画する。さらに、該空気用ピストン14に形成した拡径フランジ14eの上面が筒状閉塞部材28の内向きフランジ28bに当接してこれを引き上げ、空気流通孔2eを開放することになる。したがって、液体の吸い上げによる容器B内の負圧化はこの空気流通孔2eを介して空気用シリンダ21内の空気が導入されことにより解消される。この空気用シリンダ21内にはコンテナーキャップ3とアッパーキャップ4との嵌合部や押下げヘッド5とアッパーキャップ4との嵌合部の間隙から外気が取り入れられる。
0025
次いで、押下げヘッド5が押し下げられると液体用シリンダ22内にある液体は、液体用ピストンロッド9の内径内および第二逆止弁部11を経て気液混合室13内に上昇する。一方、空気用ピストン12は空気用シリンダ21との摩擦抵抗により該空気用ピストンロッド12より遅れて下降する。それにより、その円筒胴部の上端外周14iを空気用ピストンロッド12の上限ストッパーに突設した周壁12bに密接することになり、その通気孔14dによる空気の流通は阻害され、一方、摺動筒14cの下端周縁部14hは下限ストッパー9と離間して前記の空気導入口部9cを開放する。更に空気用ピストン14が降下すると該ピストン内の空気は該空気導入口部9cから空気流通用間隙12aを経て第二逆止弁11の上方、気液混合室13に圧送される(図7における矢印c)。そして気液混合室13において液体用ピストンで汲み上げられた液体は該空気と混合し泡状となる。そしてその上部のメッシュ15張設の整泡室16で均一な粒径の泡に整えられてノズル5bから噴出されることになる。
0026
【発明の効果】
本発明に係る泡噴出ポンプ容器には、容器内部とポンプの空気用シリンダー内を通じる空気流通孔2eを設けているが、液体充填工場において該容器に液体を充填しポンプ装置を該容器に装着した状態においてはこれが筒状閉塞部材28によって閉ざされている。したがって、本泡噴出ポンプ容器が消費者の手にわたり、該ポンプの押下げヘッド5とアッパーキャップ4とのねじ結合を解かない限り、たとえ容器を転倒させても容器中の液体が空気用シリンダ内に漏出することはなくなった。
0027
押下げヘッド5とアッパーキャップ4とのねじ結合を解き、該押し下げヘッドを上下動させると容器内の液体は泡状として噴出する。このポンプの押下げヘッド5を再び下限位置に戻し、アッパーキャップ4とのねじ結合をしない限り、すなわち、通常の使用状態において空気流通孔2eは常に開放状態であり、たとえ、この上下動のストロークを極めて小さく、且つ、数回繰り返して液体噴出をしても前記の筒状閉塞部材28は降下することなく空気流通孔2eは開放されているので容器内は減圧されることはない。
0028
このように、容器内の液体のくみ出しと同時にそれと同量の空気が該容器内に補充されるので、従来の如き減圧による容器の変形はもとより吸液ポンプの上昇に対する空気抵抗も全くなくなった。このように、該容器内が常に常圧となることから液体用ピストン8を連続作動させたとしてもその上昇速度、したがって液体の汲み上げ量は一定であり、空気との混合比率も変動がなく均質な、きめ細かい泡が得られることになった。
0029
このポンプの押下げヘッド5を再び下限位置に戻し、アッパーキャップ4とのねじ結合をすれば前記の空気流通孔2eは筒状閉塞部材28により閉ざされる。大衆浴場等に持参する場合は、本泡噴出ポンプ容器をこのねじ結合状態にすることによって空気用シリンダ内への液漏れが皆無となる。
0030
空気用ピストン14の円筒状胴部14aより内径側、すなわち、前記中心部の摺動筒14cとのブリッジ14b部に通気孔14dを設けたことにより、押下げヘッドの下降中は該円筒状胴部14aの上端縁14iと空気用ピストンロッドに形成した周壁12bとの気密な当接により該通気孔14dを実質的に閉ざし、逆に、該押下げヘッドの上昇中はこれを開放するという弁作用を比較的単純な空気用ピストン14によって得たもので、従来品に比べ部品点数の少ない、且つ、作動の確実な泡噴出ポンプ容器が得られる。
【図面の簡単な説明】
【図1】 図1は、本発明に係る未使用状態の泡噴出用ポンプを示した中央断面の正面図である。
【図2】 図2は、バルブシャフトを示したもので、(a)は正面図、(b)はその平面図、(c)は断面表示の側面図、(d)は底面図である。
【図3】 図3は、液体用ピストンを示したもので、(a)は左半分を断面で示した正面図、(b)は底面図である。
【図4】 図4は、空気用ピストンを示したもので、(a)は平面図、(b)は左半分を断面で示した正面図である。
【図5】 図5は、整泡筒を示したもので、(a)は正面図、(b)上半分を断面で示した側面図である。
【図6】 図6は、は筒状閉塞部材を示したもので、(a)は平面図、(b)は左半分を断面で示した正面図である。
【図7】 図7は、左半分に押下げヘッドとアッパーキャップとのねじ結合を解きかけた状態を、右半分には押下げヘッドが上昇した状態をそれぞれ断面で示した正面図である。
図8図8は、従来例を示した一部断面図である。
【符号の説明】
1 ポンプ
2 ポンプ本体
3 コンテナキャップ
4 アッパーキャップ
5 押下げヘッド
第一逆止弁
7 バルブシャフト
8 液体用ピストン
9 液体用ピストンロッド
10 ボール10
11 第二逆止弁用弁座
12 空気用ピストンロッド
13 気液混合室
14 空気用ピストン
15 メッシュ
16 整泡筒
17 渦流発生装置
21 空気用シリンダ
22 液体用シリンダ
23 段部
24 弁座
25 吸液パイプ嵌合筒
26 吸液パイプ
27 コイルスプリング
28 筒状閉塞部材
[0001]
BACKGROUND OF THE INVENTION
The present invention is attached to the mouth of a container filled with shampoo, hand soap, facial cleanser, hair styling agent, shaving agent, etc., and its head is moved up and down to suck up the liquid in the container and remove the air outside the container. The present invention relates to a structure of a foam ejection pump container that is mixed with the liquid to form a foam and ejects the foam from a nozzle.
[0002]
[Prior art]
In the pump device attached to the mouth of the container, the head portion is reciprocated up and down, and the liquid pump and the air pump incorporated in the device are operated simultaneously, and from the lower part of the liquid pump to the bottom of the container The liquid in the container is sucked up into the mixing chamber above the pump through the liquid absorption pipe hanging down to the air, and mixed with the liquid by introducing air into the mixing chamber by the air pump. There are various technical problems with the foam jet pump that jets out, and various improvements have already been made, but the problem remains.
[0003]
As one of them, after the head is pushed down and the piston for air is lowered to discharge air, when the piston moves up, the inside of the cylinder becomes negative pressure. It is necessary to attach a stop valve to the piston, and there are various disclosures about this. For example, Japanese Utility Model Laid-Open No. 4-134456 has a ball valve attached to a part of an air piston. Disclosed is a technique for attaching an air valve with an elastic valve body (V) having a thin annular outer valve portion extending inward and a thin annular inner valve portion extending inward from the tubular portion. is doing. According to this latter, the air in the cylinder pushes up the annular inner valve part into the gas-liquid mixing chamber C while the air piston is descending, and the outside air is in the gap a while the piston is ascending. It will be introduced into the cylinder and the container body through the pores F and E. In this valve structure, the structure of the piston is complicated and the assembly is troublesome, and it seems that there is a problem in the flexibility and resilience of the valve part.
[0004]
Further, when the head is reciprocated up and down, the liquid in the container is sucked up by the liquid pump, and the negative pressure in the container gradually increases, so that it becomes difficult to absorb the liquid. As a device for preventing this, it is common to make a small-diameter hole in the side wall of the air cylinder so as to communicate with the inside of the container body.
[0005]
As an introduction structure in the container by such an air hole, the above-mentioned Japanese Patent Application Laid-Open No. 2002-86029 discloses that when the air piston of the pump is at the upper end, the sliding seal portion S of the piston is in the pump and the container body. There is disclosed a configuration in which the air holes E communicating with each other are closed, and when the air piston is pushed down, the air holes E are opened to introduce outside air into the container body B (FIG. 10). According to this, there is a possibility that the communication hole between the container body and the air cylinder will not be closed during the state in which the push-down head is lowered, that is, from the manufacturing factory to the hands of the consumer, and leakage into the cylinder will occur. There is.
[0006]
Furthermore, in order to achieve uniform mixing of the liquid and air in the container, it is common to attach a mesh above the gas-liquid mixing chamber to promote fragmentation of the foamed liquid.
[0007]
[Problems to be solved by the invention]
It is an object of the present invention to provide a problem in the above-described foam jet pump container, that is, a reliable leak prevention mechanism in an air intake hole for eliminating negative pressure in the container, and simplification of a check valve applied to an air pump. Furthermore, the present invention intends to provide a uniform foaming mechanism of liquid.
[0008]
[Means for solving the problems]
In the foam jet pump container according to the present invention, the invention of claim 1 is such that a large-diameter air cylinder and a small-diameter liquid cylinder are formed concentrically, and a valve shaft and a coil spring are inserted into the liquid cylinder. A piston is fitted in each cylinder in a gas-tight or liquid-tight manner and slidably. A liquid-absorbing pipe and a check valve are provided in the liquid cylinder, and a gas-liquid mixing chamber is provided above it. The air cylinder that fits and attaches the press-down head with the discharge nozzle and press-fits the air into the gas-liquid mixing chamber has a configuration in which a flange for mounting to the container is provided on the outer peripheral surface of the cylinder. part of it is inserted into the container by overlapping the flange portion on the upper surface of the container body mouth neck, in bubble jet pump container comprising attached to the container by a container cap 3, communicating with the vessel side wall of the air cylinder The air circulation holes 2e provided, whereas the inner slidably hole closure cylinder 28a to the cylindrical closure cylinder 28 which is overhanging formed bore closure cylinder 28a within the tubular body portion 2b of the cylinder upper air to the upper end Fitted and attached so that the inner diameter of the inward flange 28b formed on the inner periphery of the cylindrical closing member is slightly overlapped with the outer diameter of the upper limit stopper 12c formed on the piston rod 12 for air, By lowering the pressing head to its lower limit position, the cylindrical closed cylinder 28a slides down to close the air circulation hole, and conversely, by raising the pressing head to its upper limit position, the air As a structure in which the circulation hole 2e is opened, air is circulated in the container body and the air cylinder.
[ 0009 ]
DETAILED DESCRIPTION OF THE INVENTION
Details of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the present invention, and FIG. 1 shows a state in which the foam ejection pump according to the present invention is not used, that is, immediately before being attached to a container with a container cap in a state where its head is pushed down to the lower limit. FIG. 2 shows a valve shaft, FIG. 3 shows a piston for liquid in the pump, FIG. 4 shows a piston for air, FIG. 5 shows a foam regulating cylinder, FIG. 6 shows a cylindrical closing member, and FIG. The state in which the head of the present pump device is unscrewed from the upper cap on the main body side and the state in which the head degree is increased are shown on the left and right. Most of these components are made of soft or semi-rigid plastic, except for springs and balls. FIG. 8 shows a conventional example.
[ 0010 ]
First, in the pump 1 of FIG. 1, the pump body 2 having an opening at the top and a mounting flange 2 a formed at the outer periphery slightly below the opening includes an air cylinder 21 having a diameter slightly smaller than the diameter of the opening, and A liquid cylinder 22 having a smaller diameter is formed on a concentric circle. That is, the pump body 2 is formed with an engaging protrusion 2c on the outer periphery of a portion extending above the mounting flange 2a in the cylindrical body portion 2b, and the pump body 2 is continuously air below the cylindrical body portion 2b. The cylinder 21 is further provided with a medium-high bulge portion 2d having a slightly smaller diameter from the bottom surface of the air cylinder 21, and the liquid cylinder 22 having a smaller diameter is again extended downward, near the lower end of the liquid cylinder 22. The liquid absorption pipe fitting cylinder 25 is formed through a step portion 23 having a small diameter and a valve seat 24 having a funnel-like inclined surface.
[ 0011 ]
In the container cap 3, an inward flange 3a is stretched on the inner diameter side of the upper end of the cylindrical body, and a female screw 3b is formed in the cylindrical body portion. The container cap 3 is fitted from the upper end of the upper cylindrical body portion 2b of the pump main body 2, and therefore the inward flange 3a is overlapped with the mounting flange 2a formed on the cylindrical body portion 2b. Further, the upper cap 4 described below is fitted so as to suppress the upper surface of the inward flange 3 a of the container cap 3.
[ 0012 ]
That is, the upper cap 4 is provided with a ridge 4b around the inner peripheral surface of the outermost body wall 4a, and the upper end of the cylindrical body 2b of the pump body 2 is fitted between the inner peripheral second peripheral wall 4c. Together, the engaging ridges 2c and the protruding ridges 4b are passed over each other, and are not easily detached and are combined in a freely rotatable manner. This prevents the container cap 3 inserted in advance from being detached. An inner peripheral wall 4d having a smaller diameter is suspended from the upper cap 4, and a lower end surface of the peripheral wall 4d serves as a stopper that determines the rising limit of the cylindrical closing member 28 described later. A male screw 4 e is formed at the upper end of the upper cap 4 and is screwed with the female screw 5 c of the push-down head 5.
[ 0013 ]
A ball is inserted into a valve seat 24 formed at the bottom of the liquid cylinder 22 to constitute the first check valve 6 .
[ 0014 ]
The valve shaft 7 shown in FIG. 2 has an upper half 7a having a small diameter and an enlarged diameter portion 7c having a slightly larger diameter at its upper end. The lower half 7b has a slightly larger diameter than the upper half 7a and its lower end. A pedestal flange 7d is formed on the base plate. Further, a liquid passage 7e is formed with the back surface of the pedestal flange 7d as an entrance and the side surface of the lower half portion 7b as an exit. The valve shaft 7 is inserted into the liquid cylinder 22 with the pedestal flange portion 7d facing downward, and is placed on the stepped portion 23. The coil spring 27 is biased upward on the pedestal flange 7d. Is inserted. In addition, 7g which protrudes at the upper end of the valve shaft 7 is a gate mark at the time of plastic molding and has no special meaning.
[ 0015 ]
The hollow piston rod 9 for liquid is provided with a valve seat 9v having an upwardly-sloped inclined surface near the upper portion within the inner diameter, and a ball 10 is attached to the valve seat 9v to form a second check valve valve 11. A flange-like lower limit stopper 9b is formed on the outer periphery of the intermediate portion of the rod 9 so as to project an upward peripheral wall 9a on the periphery thereof. The liquid piston rod 9 is fitted with a liquid piston 8 having an H-shaped cross section as shown in FIG. 3 at the lower end thereof, and the upper end of the coil spring 27 is brought into contact with the bottom surface portion 8a. The liquid cylinder 22 is slidably fitted into the liquid cylinder 22 against the bias. In this case, the inner diameter 8b of the liquid piston 8 is slightly smaller than the diameter of the enlarged diameter portion 7c at the upper end of the valve shaft 7 and larger than the diameter of the upper half portion 7a. The enlarged diameter portion 7c of the shaft 7 is forcibly passed. As a result, when the liquid piston 8 reaches the rising limit, its inner diameter 8b comes into liquid-tight contact with the enlarged diameter portion 7c, thereby preventing the liquid from flowing in the vertical direction. Is lowered, the gap between the inner diameter 8b and the diameter of the upper half 7a of the valve shaft 7 becomes a liquid passage. Next, when the piston 8 reaches the descending limit, the lower end periphery of the inner diameter 8b comes into contact with the shoulder 7h of the lower half 7b, so that the liquid in the liquid cylinder 22 does not flow up and down.
[ 0016 ]
An air piston rod 12 is fitted to the liquid piston rod 9 in which the ball 10 is inserted into the valve seat 9v with an air flow gap on the fitting surface. In order to provide the air flow gap 12a, a narrow vertical rib is provided on the inner diameter surface of the air piston rod 12 (or the outer diameter surface of the liquid piston rod 9), and the step 12k at the upper end of the fitting portion is provided. Is formed such that radial ribs (not shown) are formed so that the fitting surfaces of the liquid piston rod 9 and the air piston rod 12 are not completely brought into close contact with each other and cannot be easily detached. ing. In addition, the lower end 12d of the air piston rod 12 does not come into close contact with the upper surface of the lower limit stopper 9b formed on the liquid piston rod 9, leaving a slight gap therein, and introducing air into the air circulation gap 12a. The mouth is 9c.
[ 0017 ]
The air piston rod 12 is provided with a partition wall 12f having a fluid flow hole 12e immediately above the upper end step portion 12k of the fitting portion with the liquid piston rod 9, and the foam regulating member described later is provided at the upper small diameter portion. Two cylinders 16 are placed, and a liquid feeding pipe 5 a that hangs down from the pressing head 5 is externally fitted therein. A gas-liquid mixing chamber 13 is located above the partition wall 12f and up to the bubble regulating cylinder 16. The foam regulating cylinder 16 is formed by attaching a mesh 15 to one opening surface of a cylindrical body, and two of them are placed on an air piston rod in a state where the mesh 15 side is overlapped at both ends. In the state, it is set as a bubble regulating chamber. Further, a flange-shaped upper limit stopper 12c having a peripheral wall 12b projecting slightly downward from the lower end of the air piston rod 12 is formed.
[ 0018 ]
The air piston 14 has a sliding cylinder 14c that is airtightly and slidably fitted to the outer diameter of the lower end portion of the air piston rod 12 in the center, and a bridge having a vent hole 14d formed on the outer periphery thereof. A cylindrical seal portion 14a is formed to hang down via the portion 14b, and a sliding seal portion having a diameter that is airtightly fitted to and slides on the air cylinder 21 via the enlarged diameter flange 14e on the outer periphery of the lower end of the cylindrical barrel portion. 14f is provided around. With the operation of the pressing head described later, the upper end outer periphery 14i of the cylindrical body 14a is in contact with or fitted into the peripheral wall 12b of the upper limit stopper 12c, and the lower end outer periphery 14h is attached to the liquid piston rod 9. The lower end stopper is formed to have a diameter that abuts or fits air tightly on the peripheral wall 9a of the lower limit stopper, and as will be described later, the sliding cylinder 14c moves in the vertical direction, and the upper end outer periphery 14i of the cylindrical body 14a, The contact and separation between the lower end outer periphery 14h of the sliding cylinder 14c and the upper and lower stopper peripheral walls (12c, 9a) serve as a valve for air, send air to the gas-liquid mixing chamber 13, or ventilate the inside and outside of the air piston 14. Is shut off or opened.
[ 0019 ]
An air flow hole 2e is formed in the side wall of the cylindrical body 2b below the opening of the pump main body 2 and above the air cylinder, so that air inside the pump main body 2 and the air in the container B can flow. and then, moreover, the air flow holes 2e is brought off by the hole closure cylinder 8a formed on the upper end of the cylindrical closure member 28 which will be described next. That is, as shown in FIG. 6, the cylindrical closing member 28 is formed in the hole closing cylindrical body 28a and the air piston rod 12 having a liquid-tight outer diameter with the inner diameter of the cylindrical body portion 2b of the opening portion of the air circulation hole 2e. A cylindrical body with a flange formed with an inward flange 28b that comes into contact with the upper limit stopper 12c. After the air piston 14 is inserted into the air cylinder 21, the cylindrical body portion 2b of the cylinder from the top of the pump body Is inserted and fitted.
[ 0020 ]
Two foam regulating cylinders 16 and 16 (FIG. 5) each having a mesh 15 attached on one side are placed on the upper end of the piston rod 12 for air, and the liquid discharge nozzle 5b is integrally formed from above. The formed push-down head 5 is fixed by fitting the fitting cylinder 5a.
[ 0021 ]
The present foam ejection pump 1 having the above-described structure has a liquid absorption pipe 26 inserted into a liquid absorption pipe coupling cylinder 25 at the lower end of the liquid cylinder 22 and its main body portion is inserted into the container B. The formed mounting flange 2a is placed on the container mouth end via the packing P, and is fastened to the container by tightening it with the container cap 3. The container B is filled with a foamable liquid, and the present foam ejection pump 1 is attached in a state where the head is pushed down to the lower limit position. Accordingly, the liquid piston 8 and the air piston 14 are both in the lower limit position, and the inner diameter of the liquid piston 8 and the shoulder 7h of the enlarged diameter portion 7b of the valve shaft 7 are kept in contact with each other to maintain airtightness. The piston 14 is airtightly contacted (or fitted) with the peripheral wall 12b formed at the upper end stopper 12c of the air piston rod with the upper end outer diameter 14i of the cylindrical body portion 14a, and the lower end sliding seal portion 14f is also formed. Since airtightness is maintained, the air flow inside and outside the air piston 14 is blocked. Further, the cylindrical closing member 28 pushes down the inward flange 28b by an upper limit stopper 12c formed on the air piston rod 12, and the hole closing cylindrical body 28a has an air flow hole 2e between the air cylinder and the container B. (Arrow ab in the left sectional view of FIG. 7). Therefore, even if the container falls, the liquid in the container does not enter the air cylinder.
[ 0022 ]
The use of the foam-jet pump container according to the present invention attached to the container as described above will be described. When the foam jet pump container according to the present invention is not used, the pressing head is at the lower limit position as shown in the left sectional view of FIG. When the coupling of the screw portion 4e between the pressing head 5 and the upper cap 4 is released from this state, the liquid piston 8 is lifted by the urging force of the coil spring 27, and together with this, the liquid piston rod 9 and the air for fitting with it. The piston rod 12 is also raised integrally, and the liquid in the container B is pumped up. However, the movement of the air piston 14 is delayed due to the frictional resistance of the sliding seal portion 14 f that is in contact with the air cylinder 21, and slippage occurs between the sliding cylinder 14 c portion and the air piston rod 12. At the moment when this slip occurs, the air tightness due to the close contact between the outer periphery 14i of the upper end of the cylindrical body 14a of the air piston 14 and the peripheral wall 12b of the upper limit stopper 12c is broken, and from there the air piston 14 passes through the vent hole 14d. Air flow (arrow d in FIG. 7) occurs between the inside and outside, and the pressure is the same. Therefore, the difference in pressure due to the rise of the piston between the upper and lower sides of the air piston 14 is eliminated.
[ 0023 ]
Further, the sliding cylinder 14c slides down relative to the air piston rod 12 so that the lower peripheral edge 14h of the sliding cylinder 14c is formed on the liquid piston rod 9 and the peripheral wall of the lower limit stopper 9b. It will contact | abut to 9a airtightly. As a result, the air introduction port 9c to the air circulation gap 12a is closed (right sectional view of FIG. 7). Accordingly, the flow of air between the gas-liquid mixing chamber 13 and the air cylinder 21 is closed, and the liquid in the liquid cylinder does not enter the air cylinder.
[ 0024 ]
When the push-down head, the air piston 14 and the like are further raised, the inner peripheral edge 8b of the upper end of the liquid piston 8 comes into liquid-tight contact with the enlarged diameter portion 7c of the valve shaft 7, where the upper and lower sides in the liquid cylinder 22 are made liquid-tight. Partition. Further, the upper surface of the enlarged diameter flange 14e formed in the air piston 14 comes into contact with the inward flange 28b of the cylindrical closing member 28 and lifts it up to open the air circulation hole 2e. Accordingly, negative pressure in the container B by wicking of the liquid air in the air cylinder 21 through the air flow hole 2e is eliminated by that will be introduced. Outside air is taken into the air cylinder 21 from the gap between the fitting portion between the container cap 3 and the upper cap 4 and the fitting portion between the pressing head 5 and the upper cap 4.
[ 0025 ]
Next, when the pressing head 5 is pressed down, the liquid in the liquid cylinder 22 rises into the gas-liquid mixing chamber 13 through the inner diameter of the liquid piston rod 9 and the second check valve portion 11. On the other hand, the air piston 12 descends later than the air piston rod 12 due to frictional resistance with the air cylinder 21. As a result, the outer periphery 14i at the upper end of the cylindrical body is in close contact with the peripheral wall 12b protruding from the upper limit stopper of the air piston rod 12, and the air flow through the vent hole 14d is obstructed, while the sliding cylinder The lower peripheral edge portion 14h of 14c is separated from the lower limit stopper 9 to open the air introduction port portion 9c. When the air piston 14 is further lowered, the air in the piston is pumped from the air introduction port 9c to the gas-liquid mixing chamber 13 above the second check valve 11 through the air flow gap 12a (in FIG. 7). Arrow c). Then, the liquid pumped up by the liquid piston in the gas-liquid mixing chamber 13 is mixed with the air to form a foam. And the foam of the uniform particle diameter is prepared in the foam regulating chamber 16 of the mesh 15 stretched on the upper part, and it ejects from the nozzle 5b.
[ 0026 ]
【The invention's effect】
The bubble ejection pump container according to the present invention is provided with an air circulation hole 2e that passes through the inside of the container and the cylinder for the air of the pump. The liquid is filled in the container in a liquid filling factory, and the pump device is mounted on the container. In this state, this is closed by the cylindrical closing member 28. Therefore, as long as the present foam jet pump container is in the hands of the consumer and the screw connection between the push-down head 5 of the pump and the upper cap 4 is not released, the liquid in the container will remain in the air cylinder even if the container is turned over. No longer leaks.
[ 0027 ]
When the screw connection between the pressing head 5 and the upper cap 4 is released and the pressing head is moved up and down, the liquid in the container is ejected as a foam. Unless the pump pressing head 5 is returned to the lower limit position and screwed with the upper cap 4, the air flow hole 2e is always open in the normal use state. Even when the liquid is repeatedly ejected several times, the cylindrical closing member 28 does not descend and the air circulation hole 2e is opened, so that the inside of the container is not decompressed.
[ 0028 ]
As described above, since the same amount of air is replenished in the container at the same time as the liquid in the container is pumped, the air resistance against the rise of the suction pump as well as the deformation of the container due to the reduced pressure as in the prior art is completely eliminated. In this way, since the inside of the container is always at normal pressure, even if the liquid piston 8 is continuously operated, its rising speed, and hence the pumping amount of the liquid, is constant, and the mixing ratio with the air is uniform and uniform. A fine bubble was obtained.
[ 0029 ]
The pumping head 5 of the pump is returned to the lower limit position and screwed with the upper cap 4 to close the air circulation hole 2e by the cylindrical closing member 28. When bringing it into a public bath or the like, liquid leakage into the air cylinder is completely eliminated by bringing the bubble jet pump container into this screw connection state.
[ 0030 ]
By providing a vent hole 14d on the inner diameter side of the cylindrical body portion 14a of the piston 14 for air, that is, in the bridge 14b portion with the sliding cylinder 14c at the center portion, the cylindrical body is lowered while the pressing head is lowered. The air hole 14d is substantially closed by an airtight contact between the upper end edge 14i of the portion 14a and the peripheral wall 12b formed on the air piston rod, and conversely, the valve is opened while the pressing head is raised. The operation is obtained by a relatively simple air piston 14, and a bubble jet pump container having a smaller number of parts than that of the conventional product and a reliable operation can be obtained.
[Brief description of the drawings]
FIG. 1 is a front view of a central section showing an unused bubble jet pump according to the present invention.
2A and 2B show a valve shaft, in which FIG. 2A is a front view, FIG. 2B is a plan view thereof, FIG. 2C is a side view of a cross-sectional display, and FIG.
3A and 3B show a liquid piston, where FIG. 3A is a front view showing the left half in section, and FIG. 3B is a bottom view.
4A and 4B show an air piston, where FIG. 4A is a plan view and FIG. 4B is a front view showing a left half in section.
5A and 5B show a bubble regulating cylinder, in which FIG. 5A is a front view and FIG. 5B is a side view showing an upper half in section.
FIGS. 6A and 6B show a cylindrical closing member, where FIG. 6A is a plan view and FIG. 6B is a front view showing the left half in section.
FIG. 7 is a front view showing in cross section a state in which the screw connection between the pressing head and the upper cap has been released on the left half, and a state in which the pressing head has been raised on the right half.
Figure 8 is a partial sectional view showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pump 2 Pump main body 3 Container cap 4 Upper cap 5 Push-down head 6 First check valve 7 Valve shaft 8 Liquid piston 9 Liquid piston rod 10 Ball 10
11 Valve seat for second check valve 12 Piston rod for air 13 Gas-liquid mixing chamber 14 Piston for air 15 Mesh 16 Foam control cylinder 17 Eddy current generator 21 Cylinder for air 22 Cylinder for liquid 23 Step part 24 Valve seat 25 Liquid absorption Pipe fitting cylinder 26 Liquid absorbing pipe 27 Coil spring 28 Cylindrical closing member

Claims (1)

同心円上に大径の空気用シリンダ(21)と小径の液体用シリンダ(22)を形成し、該液体用シリンダにはバルブシャフト(7)とコイルスプリング(27)を挿入してそれぞれのシリンダに気密、または液密に、かつ、摺動自在にピストン(8)(14)を嵌合し、該液体用シリンダの下端には第一吸液弁(6)とその下部に吸液パイプ(26)とを、上方には第二逆止弁(11)および気液混合室(13)を介して吐出用ノズル付き押下げヘッド(5)を嵌合取着し、前記気液混合室に空気を圧入する空気用シリンダにはその外周面に容器への取付用フランジ(2a)を周設した構成になり、該シリンダ部を容器内に挿通して前記取付用フランジ部を容器本体口頸の上面に重ね合わせ、コンテナーキャップ(3)により容器に取り付けてなる泡噴出ポンプ容器において、前記空気用シリンダの側壁に容器内と連通する空気流通孔(2e)を設け、一方、上端に穴閉塞筒体(28a)を張出し形成した筒状閉塞筒部材(28)を該穴閉塞筒体(28a)が空気用シリンダ上部の筒状体部(2b)に摺動自在に内嵌し、かつ、その筒状閉塞部材の内周に形成した内向きフランジ(28b)の内径が空気用ピストンロッド(12)に張出し形成した上限ストッパー(12c)の外径より内側に若干重なるように装着して、前記押下げヘッドをその下限位置まで降下させることによって該筒状閉塞筒体(28a)が摺動降下して前記空気流通孔を閉塞し、逆に、押下げヘッドをその上限位置まで上昇させることによって該空気流通孔2eを開口する構造としたことに特徴を有する泡噴出ポンプ容器。A large-diameter air cylinder (21) and a small-diameter liquid cylinder (22) are formed on concentric circles, and a valve shaft (7) and a coil spring (27) are inserted into the liquid cylinder, and each cylinder is inserted. A piston (8) (14) is fitted in a gas-tight or liquid-tight manner in a slidable manner, and a first liquid-absorbing valve (6) is provided at the lower end of the liquid cylinder and a liquid-absorbing pipe (26 ) And a push-down head (5) with a discharge nozzle fitted and attached to the upper side via a second check valve (11) and a gas-liquid mixing chamber (13). The air cylinder for press-fitting the cylinder has a configuration in which a flange (2a) for mounting to the container is provided around the outer peripheral surface thereof, and the cylinder portion is inserted into the container so that the mounting flange is connected to the neck of the container main body. Overlay on top and attach to container with container cap (3) In the foam jet pump container, an air flow hole (2e) communicating with the inside of the container is provided on the side wall of the air cylinder, and a cylindrical closed cylinder member (28 ) Is slidably fitted into the cylindrical body portion (2b) at the top of the air cylinder, and an inward flange (28b) formed on the inner periphery of the cylindrical closing member. ) Is mounted so that the inner diameter of the upper limit stopper (12c) overhanging the piston rod for air (12c) slightly overlaps the outer diameter of the upper limit stopper (12c), and the push-down head is lowered to its lower limit position. The closed cylinder (28a) slides down to close the air circulation hole, and conversely, the air circulation hole 2e is opened by raising the push-down head to its upper limit position. Bubble fountain Pump container.
JP2002217652A 2002-07-26 2002-07-26 Foam jet pump container Expired - Lifetime JP3752205B2 (en)

Priority Applications (1)

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JP2002217652A JP3752205B2 (en) 2002-07-26 2002-07-26 Foam jet pump container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002217652A JP3752205B2 (en) 2002-07-26 2002-07-26 Foam jet pump container

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JP2004057891A JP2004057891A (en) 2004-02-26
JP3752205B2 true JP3752205B2 (en) 2006-03-08

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005313110A (en) * 2004-04-30 2005-11-10 Puresuko Kk Bubble formation device and pump type bubbling out vessel
JP4729569B2 (en) * 2005-06-10 2011-07-20 河野樹脂工業株式会社 Foam ejection container and structure of pump head of the foam ejection container
KR100858366B1 (en) 2007-10-05 2008-09-11 정만택 Pumping apparatus for discharging bubbles
JP7141068B1 (en) * 2021-03-22 2022-09-22 大成化工株式会社 discharge container
CN115072167A (en) * 2022-07-13 2022-09-20 广州丽高塑料制品有限公司 Foam pump independent of spring seal

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