JP3710617B2 - Foam jet pump - Google Patents

Foam jet pump Download PDF

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Publication number
JP3710617B2
JP3710617B2 JP03205098A JP3205098A JP3710617B2 JP 3710617 B2 JP3710617 B2 JP 3710617B2 JP 03205098 A JP03205098 A JP 03205098A JP 3205098 A JP3205098 A JP 3205098A JP 3710617 B2 JP3710617 B2 JP 3710617B2
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Japan
Prior art keywords
cylinder
fitted
nozzle
stem
pump
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Expired - Fee Related
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JP03205098A
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Japanese (ja)
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JPH11207218A (en
Inventor
茂雄 飯塚
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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Priority to JP03205098A priority Critical patent/JP3710617B2/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005Components or details
    • B05B11/0027Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0032Manually actuated means located downstream the discharge nozzle for closing or covering it, e.g. shutters

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  • Closures For Containers (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は泡噴出ポンプに関する。
【0002】
【従来の技術】
泡噴出ポンプとして、装着キャップにより容器体に装着固定させるとともに、装着キャップ上端開口より上方付勢状態で上下動可能に突出するステムの上端にノズルヘッドを嵌着固定してなる作動部材を備え、作動部材を上下動させることにより容器体内液体を汲み上げる如く構成したポンプ機構を備えてなるポンプであって、ノズルヘッドに、噴出された収納液を空気と攪拌して発泡化させる発泡部材を組付けたものが使用されている。
【0003】
この発泡化用のノズルヘッドは、通常のノズルヘッドの噴出口に、メッシュ等の発泡部材を有するノズル口筒を組付け、噴出口と発泡部材との間に形成される噴出路に外気を導入する空気孔を開設して構成され、勢い良く噴出される収納液と、この収納液の勢いの良い噴出動作により空気孔から吸引された空気とを一緒に発泡部材に導入し、発泡部材で収納液と空気との気・液混合体の発泡化を達成するものである。
【0004】
【発明が解決しようとする課題】
しかしながら、上記した従来技術にあっては、空気孔を噴出口に近接した噴出路に開口する必要があることから、空気孔をノズルヘッドの上端部に、その開口部を外部に露出させた状態で直接開設した構造となっているので、空気孔開設のための専用の後加工を必要として、制作処理工数が増えるとか、空気孔を一体設することのできる専用の金型装置を新たに製造しなければならないという問題があった。
【0005】
また、空気孔は、ノズルヘッドの上端部の外表面に露出した状態で形成されるので、商品としてのノズルヘッドの外観体裁上、この空気孔を大きな開口面積で形成することができず、このため噴出される内容液の発泡化に空気が不足となりがちとなるという問題があった。
【0006】
さらに、空気孔は、商品としてのノズルヘッドの外観体裁上、多数個を設けることができず、ノズルヘッドの上端部の左右にそれぞれ一つ設けるのが限界であるため、噴出路の全周にわたって空気を均一に吸引することは不可能であり、このため噴出される内容液の物性によっては、発泡化に不均一が発生する虞があるという問題があった。
【0007】
また、これらポンプを容器体に装着した泡噴出器は、用途によっては容器を傾倒しつつ目的部位に泡を噴射することもしばしば行われている。その際、泡噴出後のステム内或いはヘッド本体内の液が噴出口より垂れる虞がある。通常のこの種ポンプに使用されている玉状弁体を使用した吐出弁では、その液漏れを防止を図れない。
【0008】
そこで、本発明は、上記した従来技術における問題点を解消すべく創案されたもので、ノズルヘッドの制作の面倒化を防止するとともに、既存のノズルヘッドの発泡化機能付きへの変換を容易とし、更に内容液の十分で良好な発泡化を得ることを目的し、また、泡噴出後の液漏れを極力防止できる機能を兼ね備えたポンプを提案することを目的とする。
【0009】
【課題を解決するための手段】
本請求項1発明のポンプは上記課題を解決するため、装着キャップ2により容器体3に装着固定させるとともに、装着キャップ上端開口より上方付勢状態で上下動可能に突出するステム4の上端にノズルヘッド5を嵌着固定してなる作動部材Aを備え、作動部材を上下動させることにより容器体内液体を汲み上げる如く構成したポンプ機構を備えてなるポンプであって、上記ノズルヘッド5を、ステム4外周上端に縦筒6の下部内周を密嵌して固定するとともに、縦筒内上部と連通する噴出口7aを基端面7bに開口した先端開口のノズル筒7を、縦筒6上部より前方へ突設してなるヘッド本体5Aと、周囲に外気導入用の隙間8をあけてノズル筒7内に嵌着固定するとともに、内部に発泡部材9を備え、且つ、基端部に上記隙間8と内部とを連通させる連通口10を設けてなる発泡筒5Bとから構成し、上記ステム4上端部に、ステム4内から縦筒6内への液噴出時のみ開弁する逆止弁Xを設けてなることを特徴とする泡噴出ポンプとして構成した。
【0010】
また、請求項2発明のポンプは、上記逆止弁Xが、ステム4内周上端に周方向間隔をあけて複数縦設した縦リブ14の各内面上端部間に柱状の基体15を嵌着固定して装着するとともに、基体15外周上端縁より外方へ突設したフランジ状弁板16をステム4上面に圧接係止させてなる逆止弁X1である請求項1記載の泡噴出ポンプとして構成した。
【0011】
また、請求項3発明のポンプは、上記フランジ状弁板16の一部を、縦筒6内上部に突出形成したノズル筒7の基端部下面と、ステム4上面との間に圧接挟持してなる請求項2記載の泡噴出ポンプとして構成した。
【0012】
また、請求項4発明のポンプは、上記ノズルヘッド5上面に嵌着した嵌着基板26より一体に突設した弾性帯27の先端を上部に一体に連結するとともに、ノズル筒7先端に着脱可能に嵌着して閉塞する蓋板29を設けてなる請求項1記載の泡噴出ポンプとして構成した。
【0013】
また、請求項5発明のポンプは、上記発泡筒5Bが、ノズル筒7内に密嵌固定した嵌合用筒31内面より突設した連結片11を介して二重筒状に且つ一体に延設した発泡筒5Bであり、嵌合用筒31先端より一体に突設した弾性帯27先端を上部に一体に連結するとともに、嵌合用筒31先端に着脱可能に嵌着して閉塞する蓋板29を設けてなる請求項1記載の泡噴出ポンプとして構成した。
【0014】
【発明の実施の形態】
以下、本発明の実施例の形態を図面を参照して説明する。
本発明の泡噴出ポンプ1は、装着キャップ2により容器体3に装着固定させるとともに、装着キャップ上端開口より上方付勢状態で上下動可能に突出するステム4の上端にノズルヘッド5を嵌着固定してなる作動部材Aを備え、作動部材を上下動させることにより容器体内液体を汲み上げる如く構成したポンプ機構を備えている。
【0015】
上記ポンプ機構は、従来のこの種ポンプに使用されているものであればどの様の構造のものであっても採用できるが、例えば、図示しないで説明すると、容器体内に下部を垂下させた状態でシリンダを固定し、シリンダ内周縁を摺動する環状ピストンをステム外周下部に突設した作動部材を、コイルスプリング等により上方付勢させ、シリンダ下端部には吸い込み弁を、ステム内上部には吐出弁をそれぞれ設け、シリンダ下端より垂設した吸い上げパイプを容器体内に垂下させたものが、最も単純な構造として挙げられる。
【0016】
本発明では、この種のポンプに於いて、上記ノズルヘッド5を、ヘッド本体5Aと、発泡筒5Bとから構成している。
【0017】
ヘッド本体5Aは、ステム4外周上端に縦筒6の下部内周を密嵌させて固定するとともに、縦筒6内上部と連通する噴出口7aを基端面7bに開口した先端面開口のノズル筒7を、縦筒6上部より前方へ突設している。ノズル筒7の形状は、発泡筒5Bの形状と相関して発泡筒5Bとの間に隙間を形成できる筒状であれば良く、例えば、図1,図3に示す実施例の如く、矩形筒状に形成しても、或いは図4,図6に示す実施例の如く円筒状であっても、図示しないが楕円筒状であってもその他の筒状であっても良い。また、ノズル筒7の基端面7bに開口した噴出口7aは、収納液を勢い良く噴出するために設けたものであり、基端面7bの位置は、図示例の如く、縦筒6の中央部分に存在する様に縦筒6の上部内に発泡筒5Bの基端部を食い込ませて形成しても良い。
【0018】
また、発泡筒5Bは、周囲に外気導入用の隙間8をあけてノズル筒7内に嵌着固定するとともに、内部に発泡部材9を備え、且つ、基端部に外気導入用の隙間8と内部とを連通させる連通口10を設けて構成している。
【0019】
図1及び図2に示す実施例では、円筒状の発泡筒5Bの両側前後方向中央部に、それぞれ連結片11を突設し、各連結片11をノズル筒7内面両側に凹設した前後方向に延びる凹溝12に嵌合させて発泡筒5Bをノズル筒7内に、その先端を突出させて嵌合させ、以てその周囲に外気導入用の隙間8を設けている。
【0020】
また、発泡部材9は噴出口7aから勢い良く噴出する液と、液の噴出力により連通口10から吸引される空気との、気・液混合体を発泡させるために設けたもので、図示例では、発泡筒5Bと一体に形成したメッシュとして発泡部材9を構成している。また、図1及び図2に示す実施例では、その中央部に矩形状の窓孔13を穿設して、発泡の調整を行う如く構成している。発泡部材9としてはメッシュに限らず、多孔質部材を用いる等、従来のこの種ポンプに於ける発泡部材として使用しているものが採用できる。
【0021】
連通口10は、図1,図3,図4に示す実施例の如く、発泡筒5Bの基端部に孔を形成しても良く、或いは図6に示す実施例の如く、発泡筒5Bの基端部をノズル筒7の基端面7bと離隔して設けても良く、この場合、外気が周囲より吸入されてより均一な発泡化が期待出来る。図1に示す実施例では、発泡筒5B外周後端部の左右両側に、それぞれ矩形状の切欠き孔を穿設することにより連通口10を構成している。
【0022】
本発明では、ステム4上端部に、ステム4内から縦筒6内への液噴出時のみ開弁する逆止弁Xを設けている。この逆止弁Xを設けることにより、保管時等に不用意に容器を倒すことがあっても、内容液の漏出を極力防止することはもとより、使用時に、容器を傾倒させつつ使用する際の液の漏出も極力防止する如く構成している。
【0023】
図1,図4,図6に示す実施例では、ステム4内周上端に周方向間隔をあけて複数縦設した縦リブ14の各内面上端部間に柱状の基体15を嵌着固定して装着するとともに、基体15外周上端縁より外方へ突設したフランジ状弁板16をステム4上面に圧接係止させ、また、弁板16の前部一部を、縦筒6内上部に突出形成したノズル筒7の基端部下面と、ステム4上面との間に圧接挟持した逆止弁Xを設けている。また、基体15は、外周上部に突設した係合突条17を、各縦リブ14の上端部内側に突設した各係止突起18を強制的に乗り越えてその下面に係合させている。
【0024】
図1に示すポンプ1を使用する場合に付いて説明すると、図1の状態からノズルヘッド5上面を押圧して作動部材Aを押し下げることにより、容器体内の液がステム4より逆止弁X1の弁板16を押し上げて噴出口7aより勢い良く発泡筒5B内に噴出される。発泡筒5B内への液の噴出に伴って連通口10より外気が吸引され、この空気と液との混合体が発泡部材9に導入されてここで発泡し、発泡筒5Bの先端より泡として噴出される。尚、上記作動部材Aの押し下げが終了すると、弁板16がその弾性復元力により元の閉弁状態に戻るため、縦筒6上部及び発泡筒5B内には未発泡の液の存在は極めて少なくなる。
【0025】
図3に示す実施例は、上記ステム4内上部に形成した弁座20上に載置した玉状弁体21を、縦筒6内上部に突設したノズル筒7の基端部下面との間に張設したコイルスプリング22により常時下方へ圧接して逆止弁X2を構成した例を示し、他の構成は基本的に図1の実施例と同様である。
【0026】
図4及び図5或いは図6及び図7に示す実施例は、ノズルヘッド5の開口部を蓋板29により開閉可能に閉塞させて、更なる液漏れの防止を図る如く構成したものである。
【0027】
図4及び図5に示す実施例は、図1の実施例と同様の逆止弁Xを備え、また、円筒状のノズル筒7内に、外面前後方向中央部の上下に連結片11を突設した円筒状の発泡筒5Bを嵌着固定している。また、ノズルヘッド上面に立設した平面視矩形状をなす枠24外周に嵌合させた嵌合筒部25を外周縁より垂設した嵌着基板26を設け、該基板の先端部より一体に突設した弾性帯27の先端を上部に一体に連結するとともに、ノズル筒7先端に嵌合筒28を着脱可能に嵌着して閉塞する蓋板29を一体に設けている。
【0028】
図6及び図7に示す実施例は、円筒状のノズル筒7内に密嵌固定した嵌合用筒31内面より突設した連結片11を介して二重筒状に且つ一体に延設した発泡筒5Bを横設している。また、発泡筒5Bの後端部はノズル筒7の基端面7bと離間させた状態で固定しており、この隙間を上記した如く連通口10として構成している。また、嵌合筒28先端上部より一体に突設した弾性帯27先端を上部に一体に連結するとともに、嵌合用筒31先端に嵌合筒28を着脱可能に嵌合して閉塞する蓋板29を設けて構成している。
【0029】
尚、上記各部材は主として合成樹脂を使用して形成することができ、必要に応じてエラストマー等を併用して形成することができる。
【0030】
【発明の効果】
以上説明した如く本発明ポンプは既述構成としたことにより、噴出液の発泡化のための外気導入用の隙間及び該隙間との連通口を、別体物であるヘッド本体と発泡筒との組み合わせで形成するので、製造の複雑なヘッド本体のさらなる構造の複雑化を防止することができ、もってノズルヘッドの製造を簡単かつ安価に達成することが出来る。しかも、逆止弁の存在でノズルヘッド部分には未発泡の液の存在が少なく、ポンプを装着した容器体を誤って倒した時はもとより、傾倒使用時に於ける泡噴出後の液ダレを極力防止することができる効果を兼ね備えている。
【0031】
また、外気導入用の隙間の開口部を、発泡液の噴出口と並列的に位置させるので、この吸気路の開口部が、商品としてのノズルヘッドの外観体裁に悪影響を与えることがなく、これにより商品イメージを低下させることなく、充分に大きな外気導入用の隙間の開口部を形成することができ、もって商品として外観体裁が良いとともに、良好な発泡化機能を発揮する。
【0032】
外気導入用の隙間と連通口は、ヘッド本体に対する発泡筒の組付けにより、ヘッド本体と発泡筒との間に形成されるので、その形成が簡単に且つ確実に達成できるとともに、寸法及び形態変更が容易であり、発泡筒を変更するだけで同一のヘッド本体を各種の収納液の発泡化に適応させて使用することができ、広い汎用性を発揮することができる。
【0033】
連通口を噴出口の側近に無理なく位置させることができるので、勢い良く噴出される収納液の勢いに従って外気の吸引を確実にかつ効率良く達成することが出来、もって良好で安定した収納液の発泡化を得ることができる。
【0034】
また、請求項2発明のポンプでは、ステム上端面レベルで噴出口へ移行する液の遮断を行えるため、逆止弁下流の未発泡の液の存在をより少なくすることができ、液の漏出をより防止できるものである。
【0035】
また、請求項3発明のポンプでは、逆止弁が外れる等の不都合を生じる虞を無くし、円滑な泡噴出機能を発揮するものである。
【0036】
また、請求項4発明のポンプでは、更なる液の漏出を防止できるものである。
【0037】
また、請求項5発明のポンプでは、ノズル筒先端からの更なる液の漏出防止ができるとともに、発泡筒と一体に蓋板を形成しているため、組付けも極めて簡単に行える利点を兼ね備えている。
【図面の簡単な説明】
【図1】本発明の一実施例を示す一部切欠き要部側面図である。
【図2】同実施例のノズル筒部分の拡大正面図である。
【図3】本発明の他の実施例を示す一部切欠き要部側面図である。
【図4】本発明の更に他の実施例を示す一部切欠き要部側面図である。
【図5】同実施例の要部側面図である。
【図6】本発明の更に他の実施例を示す一部切欠き要部側面図である。
【図7】同実施例の係要部側面図である。
【符号の説明】
2…装着キャップ,3…容器体,4…ステム,5…ノズルヘッド,
5a…ヘッド本体,5B…発泡筒,6…縦筒,7…ノズル筒,7a…噴出口,
7b…基端面,8…隙間,9…発泡部材,10…連通口,11…連結片,
14…縦リブ,15…基体,16…フランジ状弁板,20…弁座,21…玉状弁体,
22…コイルスプリング,26…嵌着基板,27…弾性帯,29…蓋板,
31…嵌合用筒,A…作動部材,X,X1,X2…逆止弁
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a foam jet pump.
[0002]
[Prior art]
As a foam ejection pump, it is equipped with an operation member formed by fitting and fixing a nozzle head to the upper end of a stem that is fixed to the container body by a mounting cap and protrudes upward and downward from the mounting cap upper end opening. A pump equipped with a pump mechanism configured to pump up the liquid in the container by moving the operating member up and down, and the nozzle head is assembled with a foaming member that agitates the foamed stored liquid with air and foams it Are used.
[0003]
This foaming nozzle head is assembled with a nozzle mouth tube having a foam member such as a mesh at the jet nozzle of a normal nozzle head, and the outside air is introduced into the jet passage formed between the jet nozzle and the foam member. The storage liquid that is configured by opening the air hole to be ejected vigorously and the air sucked from the air hole by the vigorous ejection operation of the stored liquid are introduced into the foam member together and stored in the foam member This achieves foaming of a gas / liquid mixture of liquid and air.
[0004]
[Problems to be solved by the invention]
However, in the above-described prior art, since it is necessary to open the air hole to the ejection path close to the ejection port, the air hole is exposed to the upper end of the nozzle head and the opening is exposed to the outside. Since it has a structure opened directly at, it requires special post-processing for opening the air holes, increasing the number of production processing steps, or newly manufacturing a dedicated mold device that can integrally install the air holes There was a problem that had to be done.
[0005]
Further, since the air hole is formed in an exposed state on the outer surface of the upper end portion of the nozzle head, the air hole cannot be formed with a large opening area due to the appearance of the nozzle head as a product. Therefore, there is a problem that air tends to be insufficient for foaming of the content liquid to be ejected.
[0006]
Furthermore, the air holes cannot be provided in large numbers due to the appearance of the nozzle head as a product, and it is limited to provide one on each of the left and right sides of the upper end of the nozzle head. It is impossible to suck air uniformly, and there is a problem that non-uniform foaming may occur depending on the physical properties of the ejected content liquid.
[0007]
Moreover, the foam ejector which mounted | worn these pumps to the container body often injects foam to the target site, tilting a container depending on the use. At that time, there is a possibility that the liquid in the stem or the head main body after the bubble ejection drips from the ejection port. With a discharge valve using a ball-shaped valve element used in a normal pump of this kind, it is not possible to prevent liquid leakage.
[0008]
Therefore, the present invention was created to solve the above-described problems in the prior art, and prevents the troublesome production of the nozzle head and facilitates the conversion of the existing nozzle head to a foaming function. Furthermore, it aims at obtaining sufficient and good foaming of the content liquid, and it aims at proposing the pump which has the function which can prevent the liquid leak after foam ejection as much as possible.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, the pump according to the first aspect of the present invention is mounted and fixed to the container body 3 by the mounting cap 2, and the nozzle is formed at the upper end of the stem 4 that protrudes upward and downward from the mounting cap upper end opening. The pump includes a working mechanism A in which the head 5 is fitted and fixed, and includes a pump mechanism configured to pump up the liquid in the container by moving the working member up and down. The lower inner circumference of the vertical cylinder 6 is closely fitted and fixed to the upper end of the outer circumference, and the nozzle cylinder 7 having a distal end opening a jet port 7a communicating with the upper inner portion of the vertical cylinder in the base end surface 7b is disposed forward of the upper part of the vertical cylinder 6 A head body 5A projecting to the outside and a gap 8 for introducing outside air around the head body 5 are fitted and fixed in the nozzle cylinder 7, a foam member 9 is provided inside, and the gap 8 is provided at the base end. Communicated with the interior And a non-return valve X that opens only when liquid is ejected from the stem 4 into the vertical cylinder 6 at the upper end of the stem 4. It was constructed as a featured foam jet pump.
[0010]
In the pump according to the second aspect of the present invention, the check valve X has a columnar base 15 fitted between the upper ends of the inner surfaces of the plurality of vertical ribs 14 provided at the inner peripheral upper end of the stem 4 at intervals in the circumferential direction. 2. The foam jet pump according to claim 1, wherein the check valve X1 is a non-return valve X1 which is fixedly mounted and has a flange-like valve plate 16 projecting outwardly from the upper edge of the outer periphery of the base 15 and pressed against the upper surface of the stem 4. Configured.
[0011]
In the pump according to a third aspect of the present invention, a part of the flange-shaped valve plate 16 is pressed and clamped between the bottom surface of the base end portion of the nozzle cylinder 7 formed so as to protrude from the inside of the vertical cylinder 6 and the top surface of the stem 4. The foam jet pump according to claim 2 is configured.
[0012]
The pump according to the fourth aspect of the present invention is such that the tip of the elastic band 27 protruding integrally from the fitting substrate 26 fitted on the upper surface of the nozzle head 5 is integrally connected to the upper portion, and is detachable from the tip of the nozzle cylinder 7. 2. A foam jet pump according to claim 1, further comprising a lid plate 29 that is fitted and closed.
[0013]
According to a fifth aspect of the present invention, in the pump of the invention, the foaming cylinder 5B extends integrally in a double cylinder shape through a connecting piece 11 protruding from the inner surface of the fitting cylinder 31 that is tightly fitted and fixed in the nozzle cylinder 7. The foamed cylinder 5B is formed by connecting a distal end of an elastic band 27 integrally projecting from the distal end of the fitting cylinder 31 to the upper part, and a cover plate 29 that is detachably fitted to the distal end of the fitting cylinder 31 and closed. The foam jet pump according to claim 1 is provided.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The foam jet pump 1 of the present invention is mounted and fixed to the container body 3 by the mounting cap 2, and the nozzle head 5 is fitted and fixed to the upper end of the stem 4 that protrudes upward and downward from the mounting cap upper end opening. And a pump mechanism configured to pump up the liquid in the container by moving the operating member up and down.
[0015]
The pump mechanism may be of any structure as long as it is used in this type of conventional pump. For example, when not illustrated, the lower part is suspended in the container body. The cylinder is fixed by the above, and the operating member with an annular piston that slides on the inner periphery of the cylinder projecting from the lower part of the outer periphery of the stem is urged upward by a coil spring or the like. One of the simplest structures is one in which a discharge pipe is provided and a suction pipe suspended from the lower end of the cylinder is suspended in the container.
[0016]
In the present invention, in this type of pump, the nozzle head 5 includes a head body 5A and a foamed cylinder 5B.
[0017]
The head main body 5A is fixed to the upper end of the stem 4 by tightly fitting the lower inner periphery of the vertical cylinder 6 and has a nozzle opening with a distal end opening that opens a base end surface 7b of a jet port 7a communicating with the upper inner portion of the vertical cylinder 6. 7 protrudes forward from the upper part of the vertical cylinder 6. The shape of the nozzle cylinder 7 may be any cylinder that can form a gap with the foam cylinder 5B in correlation with the shape of the foam cylinder 5B. For example, as shown in FIGS. It may be formed in the shape of a cylinder, or may be cylindrical as in the embodiment shown in FIGS. 4 and 6, or may be an elliptical cylinder or another cylinder (not shown). Further, the spout 7a opened in the base end surface 7b of the nozzle cylinder 7 is provided to expel the stored liquid vigorously, and the position of the base end face 7b is at the central portion of the vertical cylinder 6 as shown in the drawing. Alternatively, the base end portion of the foamed cylinder 5B may be bitten into the upper part of the vertical cylinder 6 so as to exist.
[0018]
The foaming cylinder 5B is fitted and fixed in the nozzle cylinder 7 with a gap 8 for introducing outside air around it, and has a foaming member 9 inside, and a gap 8 for introducing outside air at the base end. A communication port 10 for communicating with the inside is provided.
[0019]
In the embodiment shown in FIGS. 1 and 2, connecting pieces 11 project from the front and rear direction central portions of the cylindrical foamed cylinder 5B, and the connecting pieces 11 are recessed on both sides of the inner surface of the nozzle cylinder 7. The foamed cylinder 5B is fitted into the nozzle cylinder 7 by being fitted in a concave groove 12 extending in the direction of the nozzle cylinder 7 so that the front end of the foamed cylinder 5B protrudes into the nozzle cylinder 7, thereby providing a gap 8 for introducing outside air.
[0020]
The foaming member 9 is provided for foaming a gas / liquid mixture of the liquid ejected from the ejection port 7a and the air sucked from the communication port 10 by the ejection force of the liquid. The foam member 9 is configured as a mesh formed integrally with the foam cylinder 5B. In the embodiment shown in FIGS. 1 and 2, a rectangular window hole 13 is formed at the center of the embodiment to adjust the foaming. The foaming member 9 is not limited to a mesh, and a material used as a foaming member in a conventional pump of this type such as a porous member can be used.
[0021]
The communication port 10 may be formed with a hole in the base end portion of the foamed cylinder 5B as in the embodiment shown in FIGS. 1, 3 and 4, or the foamed cylinder 5B as shown in the embodiment shown in FIG. The base end portion may be provided separately from the base end surface 7b of the nozzle cylinder 7. In this case, it is possible to expect more uniform foaming by sucking outside air from the surroundings. In the embodiment shown in FIG. 1, the communication port 10 is formed by making rectangular cutout holes on the left and right sides of the outer peripheral rear end of the foamed cylinder 5B.
[0022]
In the present invention, a check valve X that opens only when liquid is ejected from the stem 4 into the vertical cylinder 6 is provided at the upper end of the stem 4. By providing this check valve X, even if the container is inadvertently tilted at the time of storage, etc., in addition to preventing leakage of the contents liquid as much as possible, when using it while tilting the container It is configured to prevent leakage of the liquid as much as possible.
[0023]
In the embodiment shown in FIGS. 1, 4, and 6, a columnar base 15 is fitted and fixed between the inner surface upper end portions of a plurality of vertical ribs 14 provided at a circumferential interval at the inner peripheral upper end of the stem 4. At the same time, the flange-like valve plate 16 projecting outward from the upper edge of the outer periphery of the base body 15 is pressed against and locked to the upper surface of the stem 4, and a part of the front portion of the valve plate 16 projects into the upper part of the vertical cylinder 6. A check valve X is provided between the lower surface of the base end portion of the formed nozzle cylinder 7 and the upper surface of the stem 4 in pressure contact. Further, the base 15 forcibly engages the lower surface of the engaging protrusion 17 that protrudes from the upper outer periphery of the base 15 by overcoming the engaging protrusions 18 that protrude from the inner side of the upper ends of the vertical ribs 14. .
[0024]
The case where the pump 1 shown in FIG. 1 is used will be described. When the upper surface of the nozzle head 5 is pressed from the state shown in FIG. 1 and the operation member A is pushed down, the liquid in the container is discharged from the stem 4 to the check valve X1. The valve plate 16 is pushed up and ejected from the ejection port 7a into the foam cylinder 5B. As the liquid is blown into the foaming cylinder 5B, the outside air is sucked from the communication port 10, and a mixture of this air and liquid is introduced into the foaming member 9, where it foams, and bubbles are formed from the tip of the foaming cylinder 5B. Erupted. When the operation member A is pushed down, the valve plate 16 returns to its original closed state due to its elastic restoring force, so that there is very little unfoamed liquid in the upper part of the vertical cylinder 6 and the foaming cylinder 5B. Become.
[0025]
In the embodiment shown in FIG. 3, a ball-shaped valve body 21 placed on a valve seat 20 formed in the upper part in the stem 4 is connected to the lower surface of the base end part of the nozzle cylinder 7 projecting from the upper part in the vertical cylinder 6. An example is shown in which the check valve X2 is configured by always pressing downwardly with a coil spring 22 stretched therebetween, and the other configuration is basically the same as that of the embodiment of FIG.
[0026]
The embodiment shown in FIG. 4 and FIG. 5 or FIG. 6 and FIG. 7 is configured to further prevent liquid leakage by closing the opening of the nozzle head 5 with a lid plate 29 so as to be opened and closed.
[0027]
The embodiment shown in FIGS. 4 and 5 includes a check valve X similar to that of the embodiment of FIG. 1, and the coupling piece 11 projects into the cylindrical nozzle cylinder 7 above and below the central portion in the front-rear direction of the outer surface. The provided cylindrical foam cylinder 5B is fixedly fitted. In addition, a fitting substrate 26 is provided in which a fitting cylinder portion 25 fitted to the outer periphery of a frame 24 having a rectangular shape in plan view standing on the upper surface of the nozzle head is suspended from the outer peripheral edge, and is integrated with the tip of the substrate. A front end of the protruding elastic band 27 is integrally connected to the upper portion, and a lid plate 29 is integrally provided to the front end of the nozzle cylinder 7 so that the fitting cylinder 28 is detachably fitted and closed.
[0028]
The embodiment shown in FIGS. 6 and 7 is a foam that extends integrally in a double cylinder shape via a connecting piece 11 that protrudes from the inner surface of a fitting cylinder 31 that is tightly fitted and fixed in a cylindrical nozzle cylinder 7. The cylinder 5B is installed horizontally. Further, the rear end portion of the foam cylinder 5B is fixed in a state of being separated from the base end face 7b of the nozzle cylinder 7, and the gap is configured as the communication port 10 as described above. Further, the elastic plate 27 protruding integrally from the upper end of the fitting cylinder 28 is integrally connected to the upper part, and the fitting plate 31 is detachably fitted to the leading end of the fitting cylinder 31 so as to be closed. Is provided.
[0029]
Each of the above members can be formed mainly using a synthetic resin, and can be formed using an elastomer or the like if necessary.
[0030]
【The invention's effect】
As described above, the pump according to the present invention has the above-described configuration, so that the gap for introducing the outside air for foaming the jet liquid and the communication port with the gap are separated from each other between the head main body and the foam cylinder. Since they are formed in combination, it is possible to prevent further complication of the structure of the head body that is complicated to manufacture, and thus it is possible to easily and inexpensively manufacture the nozzle head. In addition, the presence of a non-foaming liquid in the nozzle head due to the presence of a check valve makes it possible to minimize the liquid dripping after the foam is ejected when tilting and using the container with the pump. Combines effects that can be prevented.
[0031]
In addition, since the opening of the gap for introducing the outside air is positioned in parallel with the jet of the foaming liquid, the opening of the intake passage does not adversely affect the appearance of the nozzle head as a product. Thus, a sufficiently large opening for introducing the outside air can be formed without deteriorating the product image, so that the appearance of the product is good and a good foaming function is exhibited.
[0032]
The outside air introduction gap and the communication port are formed between the head body and the foamed cylinder by assembling the foamed cylinder to the head body, so that the formation can be easily and reliably achieved, and the dimensions and configuration can be changed. The same head body can be used by adapting to foaming of various storage liquids by simply changing the foamed cylinder, and a wide versatility can be exhibited.
[0033]
Since the communication port can be positioned comfortably near the jet outlet, the suction of outside air can be reliably and efficiently achieved according to the momentum of the storage liquid ejected vigorously. Foaming can be obtained.
[0034]
Further, in the pump according to the second aspect of the present invention, since the liquid that moves to the jet outlet can be shut off at the level of the upper end surface of the stem, the presence of unfoamed liquid downstream of the check valve can be reduced, and liquid leakage can be prevented. It can be prevented more.
[0035]
In the pump according to the third aspect of the present invention, there is no risk of inconvenience such as the check valve coming off, and a smooth bubble ejection function is exhibited.
[0036]
In the pump according to the fourth aspect of the present invention, further leakage of the liquid can be prevented.
[0037]
Further, the pump according to the fifth aspect of the present invention can prevent further leakage of the liquid from the tip of the nozzle cylinder, and has the advantage that the assembly can be very easily performed because the cover plate is formed integrally with the foam cylinder. Yes.
[Brief description of the drawings]
FIG. 1 is a side view of a main part of a partly cutout showing an embodiment of the present invention.
FIG. 2 is an enlarged front view of a nozzle tube portion of the same embodiment.
FIG. 3 is a partially cutaway side view of a main part showing another embodiment of the present invention.
FIG. 4 is a partially cutaway side view of a main part showing still another embodiment of the present invention.
FIG. 5 is a side view of the main part of the same embodiment.
FIG. 6 is a partially cutaway side view of a main part showing still another embodiment of the present invention.
FIG. 7 is a side view of a main part of the same example.
[Explanation of symbols]
2 ... mounting cap, 3 ... container body, 4 ... stem, 5 ... nozzle head,
5a ... head body, 5B ... foam cylinder, 6 ... vertical cylinder, 7 ... nozzle cylinder, 7a ... jet nozzle,
7b: Base end surface, 8 ... Gap, 9 ... Foam member, 10 ... Communication port, 11 ... Connecting piece,
14 ... Vertical ribs, 15 ... Base, 16 ... Flanged valve plate, 20 ... Valve seat, 21 ... Ball valve,
22 ... coil spring, 26 ... fitting substrate, 27 ... elastic band, 29 ... lid plate,
31 ... Cylinder for fitting, A ... Actuating member, X, X1, X2 ... Check valve

Claims (5)

装着キャップ2により容器体3に装着固定させるとともに、装着キャップ上端開口より上方付勢状態で上下動可能に突出するステム4の上端にノズルヘッド5を嵌着固定してなる作動部材Aを備え、作動部材を上下動させることにより容器体内液体を汲み上げる如く構成したポンプ機構を備えてなるポンプであって、上記ノズルヘッド5を、ステム4外周上端に縦筒6の下部内周を密嵌して固定するとともに、縦筒内上部と連通する噴出口7aを基端面7bに開口した先端開口のノズル筒7を、縦筒6上部より前方へ突設してなるヘッド本体5Aと、周囲に外気導入用の隙間8をあけてノズル筒7内に嵌着固定するとともに、内部に発泡部材9を備え、且つ、基端部に上記隙間8と内部とを連通させる連通口10を設けてなる発泡筒5Bとから構成し、上記ステム4上端部に、ステム4内から縦筒6内への液噴出時のみ開弁する逆止弁Xを設けてなることを特徴とする泡噴出ポンプ。The mounting member 2 is mounted and fixed to the container body 3 by the mounting cap 2, and includes an operating member A in which the nozzle head 5 is fitted and fixed to the upper end of the stem 4 that protrudes upward and downward from the mounting cap upper end opening. A pump comprising a pump mechanism configured to pump up the liquid in the container by moving the actuating member up and down. The nozzle head 5 is tightly fitted to the upper outer periphery of the stem 4 at the lower inner periphery of the vertical cylinder 6. A head body 5A, which is fixed, and has a nozzle cylinder 7 with a distal end opening at the base end surface 7b, which is connected to the upper part in the vertical cylinder, projects forward from the upper part of the vertical cylinder 6, and the outside air is introduced to the surroundings. A foaming cylinder which is fitted and fixed in the nozzle cylinder 7 with a gap 8 for use, and has a foaming member 9 inside, and a communication port 10 which communicates the gap 8 and the inside at the base end. Consists of 5B and above A bubble ejection pump characterized in that a check valve X that opens only at the time of liquid ejection from the inside of the stem 4 into the vertical cylinder 6 is provided at the upper end of the stem 4. 上記逆止弁Xが、ステム4内周上端に周方向間隔をあけて複数縦設した縦リブ14の各内面上端部間に柱状の基体15を嵌着固定して装着するとともに、基体15外周上端縁より外方へ突設したフランジ状弁板16をステム4上面に圧接係止させてなる逆止弁X1である請求項1記載の泡噴出ポンプ。The check valve X is fitted with a columnar base 15 fitted between the upper ends of the inner surfaces of a plurality of vertical ribs 14 provided at intervals in the circumferential direction at the inner peripheral upper end of the stem 4 and the outer periphery of the base 15 2. The foam jet pump according to claim 1, wherein the valve is a check valve X1 in which a flange-like valve plate 16 projecting outward from the upper end edge is press-fitted and locked to the upper surface of the stem 4. 上記フランジ状弁板16の一部を、縦筒6内上部に突出形成したノズル筒7の基端部下面と、ステム4上面との間に圧接挟持してなる請求項2記載の泡噴出ポンプ。The foam jet pump according to claim 2, wherein a part of the flange-shaped valve plate (16) is press-clamped between the lower surface of the base end portion of the nozzle cylinder (7) protruding from the upper part of the vertical cylinder (6) and the upper surface of the stem (4). . 上記ノズルヘッド5上面に嵌着した嵌着基板26より一体に突設した弾性帯27の先端を上部に一体に連結するとともに、ノズル筒7先端に着脱可能に嵌着して閉塞する蓋板29を設けてなる請求項1記載の泡噴出ポンプ。The elastic plate 27 is integrally connected to the upper end of the elastic band 27 protruding from the fitting substrate 26 fitted to the upper surface of the nozzle head 5, and the lid plate 29 is detachably fitted to the tip of the nozzle cylinder 7 and closed. The foam jet pump according to claim 1, further comprising: 上記発泡筒5Bが、ノズル筒7内に密嵌固定した嵌合用筒31内面より突設した連結片11を介して二重筒状に且つ一体に延設した発泡筒5Bであり、嵌合用筒31先端より一体に突設した弾性帯27先端を上部に一体に連結するとともに、嵌合用筒31先端に着脱可能に嵌着して閉塞する蓋板29を設けてなる請求項1記載の泡噴出ポンプ。The above-mentioned foaming cylinder 5B is a foaming cylinder 5B extending integrally in a double cylinder shape via a connecting piece 11 projecting from the inner surface of the fitting cylinder 31 that is tightly fitted and fixed in the nozzle cylinder 7, and is a fitting cylinder The bubble ejection according to claim 1, wherein the elastic band 27 projecting integrally from the 31 distal end is integrally connected to the upper portion, and the lid plate 29 is detachably fitted to the distal end of the fitting cylinder 31 and closed. pump.
JP03205098A 1998-01-28 1998-01-28 Foam jet pump Expired - Fee Related JP3710617B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP03205098A JP3710617B2 (en) 1998-01-28 1998-01-28 Foam jet pump

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Application Number Priority Date Filing Date Title
JP03205098A JP3710617B2 (en) 1998-01-28 1998-01-28 Foam jet pump

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JPH11207218A JPH11207218A (en) 1999-08-03
JP3710617B2 true JP3710617B2 (en) 2005-10-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018047934A (en) * 2016-09-23 2018-03-29 花王株式会社 Discharge container

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3986045B2 (en) * 2001-10-16 2007-10-03 石原薬品株式会社 Foam-making head adapter for spray equipment and spray equipment connected to it
JP6820210B2 (en) * 2017-01-31 2021-01-27 花王株式会社 Discharge container

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018047934A (en) * 2016-09-23 2018-03-29 花王株式会社 Discharge container

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