JP3652426B2

JP3652426B2 - Foam discharge pump container

Info

Publication number: JP3652426B2
Application number: JP31608695A
Authority: JP
Inventors: 茂雄飯塚; 博水島
Original assignee: Yoshino Kogyosho Co Ltd
Current assignee: Yoshino Kogyosho Co Ltd
Priority date: 1994-12-12
Filing date: 1995-11-08
Publication date: 2005-05-25
Anticipated expiration: 2015-11-08
Also published as: JPH08230961A

Description

【０００１】
【発明の属する技術分野】
本発明は、上半を空気用の大径シリンダ、かつ下半を液体用の小径シリンダとしたシリンダ部材を容器体内へ垂設し、上記大小の両シリンダ内へ大径および小径の筒状ピストンを嵌合させてシリンダ内から作動部材を起立する、泡放出用ポンプ容器に関する。
【０００２】
【従来の技術】
【発明が解決しようとする課題】
例えば、国際公開番号W092/08657号の泡放出用ポンプ容器が知られている。該容器は、上部を大径の空気シリンダに、下部を小径の液体シリンダに、それぞれ形成し、かつ空気シリンダ上部に容器体内への空気供給弁を設けたシリンダ部材を空気シリンダ上端面を蓋体で密閉させて容器体内へ垂設固定すると共に、上記両シリンダ内へ嵌合させた大小両径ピストンから大小両径ステムを、小径ステム上部を大径ステム内へ嵌着させかつ大径ステムを蓋体に貫通させて起立し、大径ステム上端にノズル付き押下げヘッドを嵌合した作動部材を上方付勢させて設け、付勢に抗し押下げられた状態で押下げヘッド一部を蓋板一部へ螺合可能に設けたものである。
【０００３】
上記従来の容器は、ヘッド押下げとほぼ同時に小径ステム上端部内の吐出弁と押下げヘッドから垂下する嵌合筒内発泡部材との間に形成される混合室内へ、小径ステム内を通る液体と大小両ステム間を通る空気とが流入するが、当初混合室内に入る空気は圧縮が充分になされていないため、混合室内に入る液体量に比べて空気量が不足し、そのため当初放出される泡はその発泡が不完全となる欠点があった。
【０００４】
上記混合室内への空気流入に遅れて、液体が流入するよう設けることで上記欠点を除去した発明を、本出願人は特願平6‐136411号をもって出願したが、該発明に係る泡放出用ポンプ容器においても尚改良すべきいくつかの問題点があることが判明した。
【０００５】
その一つは発泡部材であり、従来は上記押下げヘッドから垂下するステム嵌合筒の上部内へ嵌合させる短筒の上下両面ないし一面に発泡用ネットを張設していたが、上記容器使用により発泡させて液体使用すると、液体をそのまま使用する場合に比べて流動性が低下し、よって液体が無駄に流失することが少ない利点を有することから、従来使用されていなかった分野での使用も考慮されている。
【０００６】
従来泡放出用ポンプ容器から放出される泡は、きめの細い小さい泡であることが望まれていたが、上記のように使用分野が拡大すると、例えば器物吹付け用洗剤であれば、さほど泡が小径であることを必要とせず、場合によっては更に泡径が大であることが用途に適する場合もある。その泡径は、主として上記発泡部材に張設した発泡用ネットで定めることが出来るが、従来は発泡部材を一個だけ嵌合させていたから、上記泡放出用ポンプ容器を各種用途にそれぞれ対応させるためには、発泡される泡径を異にする発泡部材を多数用意することが必要となるものであった。
【０００７】
又既述特願平6‐136411号にあっては、大径シリンダ内へ空気吸入させる第１外気吸込み弁を、ステム上部外面へ嵌合させた大径筒状ピストンの内筒下半へ筒部を嵌着させ、該筒部上端から下外方へ突出させた弾性スカート状部先端を、上記大径筒状ピストンのフランジが有する垂下壁内面へ圧接させて形成し、該第１外気吸込み弁への第１外気吸入路を、容器体口頸部へ嵌合させた装着筒の頂壁の中央部開孔周縁から垂下する案内筒内面と、該案内筒内へ上方から垂下する、押下げヘッドのステム嵌合筒外面との間、および上記大径筒状ピストンフランジの内筒側部分へ穿設した小孔とで形成していた。
【０００８】
しかしそのように形成すると、その第１外気吸込み弁の弁体を、筒部上端から下外方へ弾性スカート状部を突出して形成することとなる。時には不注意でその弁体の上下を逆に大径筒状ピストン内筒下半へ嵌合させることがあり、するとこの場合にも不完全乍ら或る程度の逆止弁効果を生ずることとなるため、その発見が容易でない欠点があった。
【０００９】
又更に既述特願平6‐136411号は、液体減少による容器体内負圧化防止用の第２外気吸込み弁の弁体を、装着筒頂壁の開口縁から垂下する案内筒外面に嵌着させた筒部下端から外向きフランジ状壁を介して上外方へ突出する弾性逆スカート状壁先端を大径シリンダの上部内壁面へ弾性圧接させて形成し、又その第２吸込み弁を有する第２外気吸入路を、シリンダ部材上端の外向きフランジ基部に小孔を穿設しておき、該小孔を経由して既述案内筒とステム嵌合筒との間、および容器体口頸部内面と大径シリンダ外面との間の各間隙を連通させることで形成していた。
【００１０】
しかしこのような構成の場合、気温上昇によって容器体内空気が膨張して高圧化したとき、上記外向きフランジ基部の小孔を通って第２外気吸込み弁体の外向きフランジ上方空間内へ高圧空気が入り、その高圧化によりその弁体が装着筒の案内筒から離脱することがあった。
【００１１】
本発明は、発泡部材を嵌合させるステム嵌合筒上部の筒孔を上下に長く設けてその筒孔内へ単数又は複数の発泡部材を嵌合できるようにし、又その発泡部材を倒立状態に変えることで、比較的少数かつ同一構造の発泡部材により、多数泡径の発泡が得られるよう設けることを目的とし、上記目的と共に第１外気吸込み弁体の逆装着があっても、この場合は空気用大径シリンダの圧縮が不能となるよう設けてその弁体の逆装着を直ちに発見できるようにしたことであり、更に容器体内が気温上昇で高圧化しても、その高圧化により第２吸込み弁体が外れることがないよう設けたことを目的とし、このようにして、収納液体および用途に応じた異る泡径の泡放出用ポンプ容器にすることが容易であって、しかも故障し難い容器を提案するものである。
【００１２】
【課題を解決するための手段】
第１の手段として口頸部２を起立する容器体１と、その口頸部外面に周壁４を螺合すると共に、頂壁中央の開口周縁から案内筒６を垂下する装着筒３と、上記口頸部上端と装着筒の頂壁とで外向きフランジ14を挟持させて容器体内へ垂下する、上半を大径シリンダ11、下半を小径シリンダ12とするシリンダ部材10と、上記大小両シリンダ内へ大径および小径の筒状ピストン60，31を嵌合させて上方付勢状態に起立する作動部材30とを有し、
該作動部材は、小径筒状ピストン31から起立するステム33の上端部外面へ、ノズル40付き押下げヘッド37から、案内筒６内へ挿入されて垂下するステム嵌合筒39下部を嵌着すると共に、ステム上部外面へ小ストローク上下動自在に大径筒状ピストン60を嵌合させ、かつステム嵌合筒の上部内へ発泡部材50を固着させて形成し、
作動部材押下げにより、小径シリンダ内液体がステム33を、又大径シリンダ内空気が大径筒状ピストン60およびステム嵌合筒39とステム外面との間をそれぞれ通って、更に共に発泡部材50通過により発泡してノズル40から放出され、
又作動部材上昇で容器体内液体が小径シリンダ内へ、又案内筒とステム嵌合筒との間隙および大径筒状ピストンに設けた第１外気吸込み弁73を通って外気が大径シリンダ内へ流入可能となし、
又容器体内負圧化で上記間隙と、案内筒と大径シリンダ周壁間に設けた第２外気吸込み弁と、シリンダ部材の外向きフランジに穿設した小孔16と、容器体口頸部と大径シリンダ間とを通って外気が容器体内へ流入可能とした泡放出用ポンプ容器において、
上記発泡部材50を、短筒51の上面に発泡ネット52を張設して形成すると共に、該発泡部材嵌合用の筒孔の長さを、該筒孔内へ嵌合させた上記発泡部材長さの複数倍としてその筒孔内へ、単数又は複数の発泡部材を、正、倒立いずれかの状態で嵌着させた。
【００１３】
第２の手段として、上記第１の手段の構成において、大径筒状ピストン60を、ステム33外面へ嵌合させた内筒61と大径シリンダ内面へ嵌合させた外筒62との各中間部に、内筒61側が高く、外筒62側が低い、階段付き円筒状フランジ63の上下両端の水平状板部を連結して形成し、第１外気吸込み孔64を内筒61に近接するフランジ部分に穿設しておき、フランジ63下方の大径筒状ピストンの内筒61部分外面へ嵌着させた短筒71下端から斜上外方へ、先端部を厚肉部とした薄肉の弾性外向きフランジ状壁72を突出して、該弾性外向きフランジ状壁と該外向きフランジ状壁先端部上面を圧接させた上記階段付き円筒状フランジの水平状板部下面とで、第１外気吸込み弁73を形成し、かつ上記弾性外向きフランジ状壁72先端部が接する水平板部内周から起立して、上記短筒71外面と対向する垂直筒部内面へ、複数の突部65を付設した。
【００１４】
第３の手段として、上記第１の手段の構成、又は第２の手段の構成において、大径シリンダ周壁11a 内面との間に小間隙をおいて、装着筒３の頂壁から係止筒８を垂下し、該係止筒外面へ嵌合させた筒部81下部から上外方へ弾性逆スカート状部82を突出して、該弾性逆スカート状部82と該逆スカート状部の先端部を圧接させた大径シリンダ周壁11a の上部内面とで、第２外気吸込み弁80を形成した。
【００１５】
【作用】
実験によれば、図１から図３が示す実施形態のように、発泡部材嵌合筒45内へ、短筒51上面へ発泡ネット52を張設した発泡部材50を上方へ、又同様に設けた発泡部材を倒立させて下方へ、それぞれ嵌着させた場合は、細かい均等な泡の発泡を得ることが出来、図４のように、倒立により短筒下面に発泡ネット52を有する発泡部材50を一箇だけ発泡部材嵌合筒45の下部内へ嵌合させた場合は、中径泡の発泡を得ることが出来、図５のように、短筒上端面へ発泡ネット52を張設した発泡部材50を一箇だけ上記嵌合筒45の上部内へ嵌合させた場合は大径泡の発泡を得ることが出来た。又図４の発泡部材50嵌合位置を順次上方へ移動させることで、又図５の発泡部材50を上記嵌合筒上端から順次下方へ移動させることで、図４実施形態による泡径と図５実施形態による泡径との範囲で徐々に泡径を変化させることが出来た。ノズル先端内に口筒42を嵌着させ、該内筒に発泡用ネット43を張設することで、上記各実施形態において放出される泡径を更に僅かに小径化し、又均等化することが出来た。
【００１６】
図２が示すように、作動部材30押下げの際、第１外気吸込み弁73は閉塞したまま下降して大径シリンダ内を加圧するが、第１外気吸込み弁体70が倒立状態で嵌合されていると、その弁体の弾性外向きフランジ状壁72は大径筒状ピストン60の垂直筒部内面の突部65，65に接してその弁閉塞が不能となるため、上記大径シリンダ内の加圧が不能となり、そのためその加圧の手応えがなく、よって第１外気吸込み弁体の不具合を直ちに発見できる。
【００１７】
第２外気吸込み弁体80は、大径シリンダ11周壁内面との間に小間隙をおいて装着筒３の頂壁から垂下する係止筒８外面へ筒部81を嵌合させてあるから、気温上昇による容器体内高圧化によってシリンダ部材の外向きフランジ基端に穿設した小孔16を通って上記筒部81上部と大径シリンダ上部との間隙内に高圧空気が入っても、その間隙は狭く、よって上記筒部を係止筒８へかた嵌めしておくことで、その第２外気吸込み弁体80の脱落を容易に防止できる。
【００１８】
【発明の実施の形態】
１は口頸部２を起立する容器体である。
【００１９】
上記口頸部外面へは、装着筒３の周壁４を螺合させている。該装着筒は上記周壁を頂壁５周縁から垂下し、その頂壁中央部を開口してその開口周縁から内面に外気流入溝を有する案内筒６を垂下する。その頂壁５はその外周部を残してその内方部分を起立筒７を介して隆出し、かつその起立筒下端から係止筒８を垂下している。
【００２０】
10はシリンダ部材で、上半を空気用の大径シリンダ11、下半を液体用の小径シリンダ12としてそれ等両シリンダをフランジ13で連結し、大径シリンダの周壁11a 上端に付設した外向きフランジ14を容器体口頸部の上端面と装着筒３の頂壁外周部とで挟持させている。外向きフランジ外周からは間隙形成筒15を起立し、かつ外向きフランジ基端部に小孔16を穿設している。尚上記間隙形成筒15を、装着筒頂壁外周部から垂下する小筒と装着筒周壁の上部とで挟持させている。小径シリンダ下端は下内方へテーパ状に小径化し、かつその下端から吸上げパイプ嵌合筒17を垂下し、該筒内へ吸上げパイプ18上端を嵌合させている。又上記テーパ状部分内面へは複数支持片19を縦設し、かつその支持片上方の小径シリンダ下部内面にも支持片内端円よりも大内径の内端円を形成する複数突条20を縦設している。
【００２１】
上記シリンダ部材10内からは作動部材30を起立する。該作動部材は、既述支持片19上端面へ載置させ、かつ突条20内面へ下部を嵌合させて小径シリンダ内に設けたコイルスプリング25により上方付勢させて、小径シリンダ内へ嵌合させた小径筒状ピストン31からステムを起立し、該ステムの上端部外面へ、押下げヘッドのステム嵌合筒を嵌着させ、又ステム嵌合筒直ぐ下方のステム部分外面へ、小ストローク上下動自在に大径筒状ピストンを嵌合させている。
【００２２】
小径筒状ピストン31は図示のように筒部32を起立して該筒部をステム33の下部内へ嵌着させるとよく、ステム33は上部内面に玉弁による吐出弁34を有し、又その中間部に外向きフランジ状壁35を付設し、該フランジ状壁外周から短筒36を起立している。
【００２３】
押下げヘッド37は、頂壁38外周部からステム嵌合筒39を垂下し、そのステム嵌合筒上端内面に基端を開口させて頂壁下面にノズル40を横設し、該ノズル先端部を外方へ延長させている。ステム嵌合筒は図示例で二重筒に形成しているが一重でもよい。そのステム嵌合筒39下部は既述装着筒３の案内筒６内へ摺動可能に挿入させている。ステム嵌合筒39の下部内は大内径部44とし、その上方筒部分下半へステム上端部を嵌着させている。該ステム嵌着部分内面には複数の第２高圧空気流出溝41を縦設し、該溝上端は、ステム上端面よりも高く設けている。ノズル先端には口筒42を嵌着させ、その口筒内端に発泡用ネット43を張設している。
【００２４】
上記ステム嵌合筒39の上部内へは下部を小外径筒部としてステム上端部内へ挿入させた発泡部材嵌合筒45を嵌着させている。その嵌合筒孔の発泡部材嵌合部分長さは、複数の発泡部材を上下に重ねて嵌合可能な長さに形成する。つまり発泡部材長さの複数倍の長さとして、図１が示すようにその嵌合筒孔内へ複数の発泡部材を嵌合させたり、又図４、図５のように単独で嵌合させたりすることが出来るようにする。ステム上端部内へ挿入させた小外径筒部46は、その下端に内向きフランジを有し、該フランジ下面から吐出弁を通過した液体により玉弁が押上げられて上記内向きフランジのフランジ孔47を閉塞することがないよう、阻止片48を垂下する。内向きフランジと吐出弁34との間には、吐出弁を通過した液体と、既述高圧空気流出溝41およびステム上部内面と小外径筒部46外面との間を通って流出した高圧空気との混合室49を設ける。該発泡部材嵌合筒は必ずしも必要ではなく、直接発泡部材をステム嵌合筒の上部内へ嵌合させてもよい。
【００２５】
発泡部材50は、短筒51の上面に発泡ネット52を張設して形成する。
【００２６】
短筒外径は発泡部材嵌合筒45の内面へかた嵌め可能な外径とし、図１から図３が示す第１実施形態では下方発泡部材を倒立させ、上方発泡部材は正立させている。又図４の第２実施形態では発泡部材嵌合筒45の下部内に倒立させた発泡部材50を嵌合させ、又図５の第３実施形態では上記嵌合筒45上部内に発泡部材を正立させている。
【００２７】
大径筒状ピストン60は、ステム33の上部外面へ摺動可能に嵌合させた内筒61と、大径シリンダ内面へ嵌合させた外筒62との各中間部に、内筒61側が高く、外筒62側が低い、階段付き円筒状フランジ63の上下両端の水平状板部を連結して形成し、内筒61に近接するフランジ部分に複数の第１外気吸込み孔64を穿設している。内筒61上端はやや上外方へ拡開する肉薄弾性部となし、その先端を既述ステム嵌合筒39下部の大内径部44内面へ気密に圧接させている。又上方水平板部外周から垂下する垂直筒部内面には複数の突部65を付設している。更に内筒61との間に小間隙をおいて、上方の水平状板部からは係止筒66を起立し、上記小間隙内の水平状板部部分に上記第１外気吸込み孔64を穿設している。該大径筒状ピストン60は、図１のように既述ステムの外向きフランジ状壁35の短筒36内面へ内筒61下端が嵌合したときを下限とし、又図２のようにステム嵌合筒39の内筒39a 下端が大径筒状ピストンの内筒61と係止筒66との間へ気密に嵌合して第１外気吸入孔64を密閉したときを上限として、小ストロークだけ、ステム33に対して上下動可能とする。該小ストロークだけ上下動する範囲で大径筒状ピストンの内筒61が摺動するステム部分外面に、複数の第１高圧空気流出溝67が穿設してあり、下限まで下降したとき、その溝下端と大径シリンダ内との連通は大径筒状ピストン内筒下端と外向きフランジ状壁35との接触で遮断される。
【００２８】
上記大径筒状ピストン60の内筒61下半外面へは、第１外気吸込み弁体70を嵌合させる。該弁体はその内筒下半外面へ嵌着させた短筒71下端から斜上外方へ薄肉の弾性外向きフランジ状壁72を突出しかつ先端部を厚肉部として形成する。又その厚肉部上面を中間水平状板部の下面へ圧接させて、第１外気吸込み弁73を形成している。
【００２９】
80は既述装着筒３の係止筒８外面へ嵌着させた第２外気吸込み弁体で、該弁体は、上記係止筒外面へかた嵌めさせた筒部81の下部外面から上外方へ弾性逆スカート状部82を突出して、その先端部を大径シリンダ周壁11a の上部内面へ圧接させて第２外気吸込み弁83を形成する。又その筒部の下部内面からは、内向きフランジを介して小筒84を垂下し、図１が示すように作動部材30が上限にある状態で、その小筒84内面が大径筒状ピストン60の下方垂直筒部外面へ水密に圧接するよう設けている。
【００３０】
90は小径シリンダ12の底部内から起立して上部をステム33下部内へ挿入させる棒状部材で、その下端やや上方から、既述シリンダ下部内面に縦設した支持片19間へ上下動可能に嵌合させた複数ストッパ91を突出する。棒状部材90下端は液体吸込み弁体93をなし、該棒状部材下降時にその弁体が、小径シリンダ部の液体吸込み弁孔を閉塞する。棒状部材上端部は大径部92として、該大径部をステム内面に縦設した突条内面で強制摺動可能に抱持させている。よって作動部材30下降時に、ステム33と棒状部材90とが共に下降して、棒状部材90下端が液体吸込み弁孔を閉塞すると、棒状部材は停止してステム33を有する作動部材30だけが下降し、又作動部材上昇の際は、始めステム33と共に棒状部材90も上昇するが、ストッパ91がコイルスプリング25下面へ接することで棒状部材90は停止し、以後作動部材30だけが上昇する。尚、コイルスプリング25と吐出弁34の玉弁と各ネットとを除く各部材は、それぞれ合成樹脂材で一体成形するとよい。
【００３１】
【発明の効果】
本発明は既述構成とするもので、発泡部材50を短筒51の上面に発泡ネット52を張設して形成しておき、又その発泡部材嵌合用の筒孔部分を、上下方向に長く、複数発泡部材50を連続して嵌合可能な長さに形成して、その筒孔部分内へ単数又は複数の発泡部材50を嵌合させるから、その発泡部材の数およびその発泡部材正逆の向きを変えること等により、用途に適した泡径の泡を発泡できる泡放出用ポンプ容器とすることが容易である。
【００３２】
又大径筒状ピストンの内筒61のフランジ下方部分外面へ嵌着させた短筒71下端から斜上外方へ、先端部を厚肉部とした薄肉の弾性外向きフランジ状壁72を突出して、該弾性外向きフランジ状壁と該外向きフランジ状壁先端部上面を圧接させた、階段付き円筒状フランジ63の水平状板部下面とで第１外気吸込み弁73を形成したから、その外向きフランジ状壁72の弾性変形が容易であると共に厚肉部を設けたことでその弁の開閉を確実とすることが出来、その弾性外向きフランジ状壁先端部が接する水平板部内周から起立する垂直筒部内面へ、複数の突部65を付設したから、短筒71先端から弾性外向きフランジ状壁72を斜上外方へ突出する第１外気吸込み弁体70を、大径筒状ピストンの内筒61へ逆向きに嵌合させた場合は、上記突部65間の間隙によって外気吸込み弁としての機能を全く有しないこととなり、よってその弁体装着の誤りを直ちに発見することが出来る。
【００３３】
更に第２外気吸込み弁体80は、筒部81下部から上外方へ弾性逆スカート状部82を突出して形成し、その筒部81を、大径シリンダ周壁内面との間に小間隙をおいて、装着筒３の頂壁から垂下する係止筒８外面へ嵌着させ、弾性逆スカート状部先端を大径シリンダ周壁の上部内面へ圧接させて第２外気吸込み弁83を形成したから、気温上昇等で高圧化した容器体内空気がシリンダ部材外向きフランジ基端の小孔16を通って大径シリンダ上部内へ入っても、該高圧空気により第２外気吸込み弁体80が係止筒８から脱落するおそれはない。
【図面の簡単な説明】
【図１】本発明容器の縦断面図である。
【図２】図１容器を作動部材押下げ状態で示す縦断面図である。
【図３】図１容器を作動部材上昇状態で示す縦断面図である。
【図４】第２実施形態で示す、容器要部の断面図である。
【図５】第３実施形態で示す、容器要部の断面図である。
【符号の説明】
３装着筒８係止筒
10 シリンダ部材 30 作動部材
33 ステム 37 押下げヘッド
50 発泡部材[0001]
BACKGROUND OF THE INVENTION
In the present invention, a cylinder member having an upper half as a large-diameter cylinder for air and a lower half as a small-diameter cylinder for liquid is suspended in the container body, and a large-diameter and small-diameter cylindrical piston is placed in both the large and small cylinders. It is related with the foam discharge | emission pump container which makes an operating member stand up from the inside of a cylinder.
[0002]
[Prior art]
[Problems to be solved by the invention]
For example, a foam discharge pump container of International Publication No. W092 / 08657 is known. The container is formed with a cylinder member having an upper part formed in a large-diameter air cylinder and a lower part formed in a small-diameter liquid cylinder and provided with an air supply valve into the container body at the upper part of the air cylinder. The large and small diameter stems are fitted from the large and small diameter pistons fitted into the cylinders and the upper portion of the small diameter stem is fitted into the large diameter stem and the large diameter stem is fixed. An operating member that is erected by penetrating the lid body and is fitted with a push-down head with a nozzle at the upper end of the large-diameter stem is biased upward, and a part of the push-down head is pushed down against the bias. It is provided so that it can be screwed onto a part of the lid plate.
[0003]
The conventional container includes a liquid passing through the small-diameter stem into a mixing chamber formed between the discharge valve in the upper end of the small-diameter stem and the fitting in-cylinder foaming member that hangs down from the depression head almost simultaneously with the head depression. The air that flows between the large and small stems flows in, but the air that initially enters the mixing chamber is not sufficiently compressed, so the amount of air is insufficient compared to the amount of liquid that enters the mixing chamber, so the bubbles that are initially released Had the disadvantage that its foaming was incomplete.
[0004]
Although the present applicant applied for an invention in which the above-mentioned drawbacks were eliminated by providing a liquid to flow in after the inflow of air into the mixing chamber, the applicant filed in Japanese Patent Application No. 6-136411. It has been found that there are still some problems to be improved in the pump container.
[0005]
One of them is a foaming member, and conventionally, a foaming net is stretched on both the upper and lower surfaces or one surface of a short cylinder fitted into the upper part of a stem fitting cylinder hanging from the pressing head. When liquid is used after being foamed by use, fluidity is lower than when liquid is used as it is. Is also considered.
[0006]
Conventionally, it has been desired that the foam discharged from the foam discharge pump container is a fine, fine foam. However, when the field of use expands as described above, for example, if it is a detergent for spraying equipment, the foam will be much reduced. Does not need to have a small diameter, and in some cases, a larger bubble diameter may be suitable for the application. The foam diameter can be determined mainly by a foam net stretched on the foam member, but conventionally only one foam member is fitted, so that the foam discharge pump container can be adapted to various applications. However, it is necessary to prepare a large number of foam members having different foam diameters.
[0007]
In the above-mentioned Japanese Patent Application No. 6-136411, the first outside air suction valve for sucking air into the large diameter cylinder is connected to the lower half of the inner cylinder of the large diameter cylindrical piston fitted to the outer surface of the upper part of the stem. The elastic skirt-shaped tip that protrudes downward and outward from the upper end of the cylindrical portion is press-contacted to the inner surface of the hanging wall of the flange of the large-diameter cylindrical piston, and the first outside air intake The inner surface of the guide cylinder that hangs down from the peripheral edge of the central opening of the top wall of the mounting cylinder fitted to the neck of the container body, and the pusher that hangs down into the guide cylinder from above. It was formed by the small hole bored between the stem fitting cylinder outer surface of the lowering head and the inner cylinder side portion of the large diameter cylindrical piston flange.
[0008]
However, if formed in such a manner, the valve body of the first outside air intake valve is formed by projecting an elastic skirt-like portion downward from the upper end of the cylindrical portion. At times, the valve body may be inadvertently fitted upside down on the lower half of the large-diameter cylindrical piston, and in this case as well, incompleteness may have a certain check valve effect. Therefore, there was a drawback that the discovery was not easy.
[0009]
Furthermore, in the above-mentioned Japanese Patent Application No. 6-136411, the valve body of the second outside air suction valve for preventing negative pressure in the container due to liquid reduction is fitted to the outer surface of the guide cylinder hanging from the opening edge of the mounting cylinder top wall. An elastic reverse skirt-like wall tip projecting upward and outward from the lower end of the cylindrical portion is formed by elastic pressure contact with the upper inner wall surface of the large-diameter cylinder, and has a second suction valve. A small hole is bored in the outward flange base at the upper end of the cylinder member in the second outside air intake path, and the container body mouth and neck are connected between the guide tube and the stem fitting tube through the small hole. Each gap between the inner surface of the part and the outer surface of the large-diameter cylinder is communicated.
[0010]
However, in such a configuration, when the air in the container expands due to a rise in temperature and the pressure increases, the high pressure air passes through the small hole in the outward flange base and into the space above the outward flange of the second external air intake valve body. When the pressure increases, the valve body sometimes comes off from the guide cylinder of the mounting cylinder.
[0011]
The present invention provides a tube hole at the top of a stem fitting cylinder for fitting a foam member so that the foam member can be fitted into the cylinder hole, and the foam member is in an inverted state. In this case, even if there is a reverse mounting of the first outside air intake valve body in addition to the above purpose, it is intended to provide a foam member having a large number of foam diameters by a relatively small number of foam members having the same structure. The large-diameter cylinder for air is made incompressible so that the reverse mounting of the valve body can be detected immediately. Even if the pressure inside the container rises due to a rise in temperature, the second suction is achieved by the high pressure. The purpose is to prevent the valve body from coming off, and in this way, it is easy to make a foam discharge pump container having a different bubble diameter depending on the liquid to be stored and the application, and it is difficult to break down. To propose a container .
[0012]
[Means for Solving the Problems]
The container body 1 that erects the mouth-and-neck part 2 as a first means, the mounting cylinder 3 that screws the peripheral wall 4 to the outer surface of the mouth-and-neck part, and hangs the guide cylinder 6 from the opening peripheral edge of the center of the top wall; A cylinder member 10 having a large-diameter cylinder 11 in the upper half and a small-diameter cylinder 12 in the lower half, with the outward flange 14 sandwiched between the upper end of the mouth and neck and the top wall of the mounting cylinder, and both the large and small An operating member 30 that has a large-diameter and a small-diameter cylindrical piston 60, 31 fitted into the cylinder and stands upright.
The actuating member is fitted into the outer surface of the upper end portion of the stem 33 erected from the small-diameter cylindrical piston 31 from the lower portion of the stem fitting tube 39 which is inserted into the guide tube 6 from the pressing head 37 with the nozzle 40 and hangs down. At the same time, a large-diameter cylindrical piston 60 is fitted on the outer surface of the stem so as to be movable up and down by a small stroke, and the foam member 50 is fixed inside the stem fitting cylinder,
By pressing down the operating member, the liquid in the small diameter cylinder passes through the stem 33, the air in the large diameter cylinder passes through the large diameter cylindrical piston 60 and the stem fitting cylinder 39 and the outer surface of the stem. Foamed by passing and discharged from the nozzle 40,
Also, the liquid in the container is moved into the small-diameter cylinder by raising the operating member, and the outside air is passed into the large-diameter cylinder through the gap between the guide cylinder and the stem fitting cylinder and the first external air suction valve 73 provided in the large-diameter cylindrical piston. Inflow possible and none,
In addition, the negative pressure inside the container, the second outside air suction valve provided between the guide cylinder and the large-diameter cylinder peripheral wall, the small hole 16 formed in the outward flange of the cylinder member, the container body neck In the foam discharge pump container that allows outside air to flow into the container through between the large diameter cylinders,
The foam member 50 is formed by stretching the foam net 52 on the upper surface of the short cylinder 51, and the length of the foam hole for fitting the foam member is fitted into the cylinder hole. As a plurality of times, one or a plurality of foam members were fitted into the cylinder hole in either a positive or inverted state.
[0013]
As a second means, in the configuration of the first means, each of the inner cylinder 61 in which the large-diameter cylindrical piston 60 is fitted to the outer surface of the stem 33 and the outer cylinder 62 which is fitted to the inner surface of the large-diameter cylinder. The intermediate plate is formed by connecting horizontal plate portions at the upper and lower ends of the cylindrical flange 63 with a step, the inner cylinder 61 side being high and the outer cylinder 62 side being low, and the first outside air suction hole 64 is close to the inner cylinder 61 Drilled in the flange part, and from the lower end of the short cylinder 71 fitted to the outer surface of the inner cylinder 61 part of the large-diameter cylindrical piston below the flange 63, to the diagonally upward outer side, the thin part with the tip part as a thick part A first outside air is formed by projecting the elastic outward flange-like wall 72 and the lower surface of the horizontal plate portion of the cylindrical flange with the above-mentioned staircase in which the elastic outward flange-like wall and the upper surface of the distal end of the outward flange-like wall are pressed. Stands from the inner periphery of the horizontal plate portion that forms the suction valve 73 and that the tip of the elastic outward flange-like wall 72 contacts, Serial to short tube 71 outer surface opposed to the vertical tubular portion inner surface, and attaching a plurality of projections 65.
[0014]
As a third means, in the structure of the first means or the structure of the second means, a small gap is provided between the inner surface of the large-diameter cylinder peripheral wall 11a and the locking cylinder 8 from the top wall of the mounting cylinder 3. The elastic reverse skirt-like portion 82 protrudes upward and outward from the lower portion of the cylindrical portion 81 fitted to the outer surface of the locking cylinder, and the elastic reverse skirt-like portion 82 and the tip of the reverse skirt-like portion are connected to each other. A second outside air intake valve 80 was formed with the upper inner surface of the large-diameter cylinder peripheral wall 11a in pressure contact.
[0015]
[Action]
According to the experiment, as in the embodiment shown in FIGS. 1 to 3, the foam member 50 in which the foam net 52 is stretched on the upper surface of the short cylinder 51 is provided in the foam member fitting cylinder 45, and similarly. When the foamed member is inverted and fitted downward, it is possible to obtain foam of fine uniform bubbles. As shown in FIG. 4, the foamed member 50 having the foamed net 52 on the bottom surface of the short cylinder by inversion. When one piece is fitted into the lower part of the foam member fitting cylinder 45, foaming of a medium diameter foam can be obtained, and a foam net 52 is stretched on the upper end surface of the short cylinder as shown in FIG. When only one foam member 50 was fitted into the upper portion of the fitting cylinder 45, foaming of large diameter foam could be obtained. Further, by moving the foaming member 50 fitting position of FIG. 4 sequentially upward, and by moving the foaming member 50 of FIG. 5 sequentially downward from the upper end of the fitting cylinder, the bubble diameter and the figure according to the embodiment of FIG. The bubble diameter could be gradually changed within the range of the bubble diameter according to the fifth embodiment. By fitting the mouth tube 42 in the tip of the nozzle and stretching the foam net 43 on the inner tube, the diameter of the foam discharged in each of the above embodiments can be further reduced and equalized. done.
[0016]
As shown in FIG. 2, when the actuating member 30 is pushed down, the first outside air intake valve 73 is lowered and pressurizes the inside of the large-diameter cylinder, but the first outside air intake valve body 70 is fitted in an inverted state. Since the elastic outward flange-like wall 72 of the valve body is in contact with the protrusions 65, 65 on the inner surface of the vertical cylindrical portion of the large-diameter cylindrical piston 60, the valve cannot be closed. The pressurization of the inside becomes impossible, and therefore there is no response to the pressurization, so that the malfunction of the first outside air suction valve body can be found immediately.
[0017]
Since the second outside air suction valve body 80 has a cylindrical portion 81 fitted to the outer surface of the locking cylinder 8 that hangs down from the top wall of the mounting cylinder 3 with a small gap between the inner surface of the peripheral wall of the large-diameter cylinder 11, Even if high-pressure air enters the gap between the upper part of the cylinder part 81 and the upper part of the large-diameter cylinder through the small hole 16 formed in the base end of the outward flange of the cylinder member due to the high pressure inside the container due to the rise in temperature, the gap Therefore, the second outside air intake valve body 80 can be easily prevented from falling off by fitting the cylinder portion into the locking cylinder 8.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Reference numeral 1 denotes a container body that erects the mouth-and-neck portion 2.
[0019]
The peripheral wall 4 of the mounting cylinder 3 is screwed into the outer surface of the mouth neck. The mounting cylinder hangs down the peripheral wall from the periphery of the top wall 5, and opens a central portion of the top wall and suspends a guide cylinder 6 having an outside air inflow groove on the inner surface from the periphery of the opening. The top wall 5 bulges the inner portion of the top wall 5 through the upright cylinder 7 while leaving the outer periphery thereof, and hangs the locking cylinder 8 from the lower end of the upright cylinder.
[0020]
Reference numeral 10 denotes a cylinder member. The upper half is a large-diameter cylinder 11 for air, the lower half is a small-diameter cylinder 12 for liquid, and both cylinders are connected by a flange 13 and are attached to the upper end of the peripheral wall 11a of the large-diameter cylinder. The flange 14 is sandwiched between the upper end surface of the container body neck and the neck and the outer peripheral portion of the top wall of the mounting cylinder 3. A gap forming tube 15 is erected from the outer periphery of the outward flange, and a small hole 16 is formed in the base end portion of the outward flange. The gap forming cylinder 15 is sandwiched between a small cylinder hanging from the outer peripheral portion of the mounting cylinder top wall and an upper portion of the mounting cylinder peripheral wall. The lower end of the small-diameter cylinder is tapered downward and inwardly, and the suction pipe fitting cylinder 17 is suspended from the lower end, and the upper end of the suction pipe 18 is fitted into the cylinder. Further, a plurality of support pieces 19 are provided vertically on the inner surface of the tapered portion, and a plurality of ridges 20 are formed on the inner surface of the lower portion of the small diameter cylinder above the support piece to form an inner end circle having a larger inner diameter than the inner end circle of the support piece. It is installed vertically.
[0021]
An operating member 30 is erected from the cylinder member 10. The actuating member is placed on the upper end surface of the support piece 19 described above, and the lower portion is fitted to the inner surface of the protrusion 20 and is biased upward by the coil spring 25 provided in the small diameter cylinder, and is fitted into the small diameter cylinder. The stem is erected from the combined small diameter cylindrical piston 31, the stem fitting tube of the push-down head is fitted to the outer surface of the upper end of the stem, and the small stroke is made to the stem part outer surface immediately below the stem fitting tube. A large-diameter cylindrical piston is fitted so as to be movable up and down.
[0022]
As shown in the figure, the small-diameter cylindrical piston 31 may have a cylindrical portion 32 upright and fit the cylindrical portion into the lower portion of the stem 33. The stem 33 has a discharge valve 34 with a ball valve on the upper inner surface, and An outward flange-like wall 35 is attached to the intermediate portion, and a short cylinder 36 is erected from the outer periphery of the flange-like wall.
[0023]
The push-down head 37 hangs a stem fitting tube 39 from the outer peripheral portion of the top wall 38, opens a base end on the inner surface of the upper end of the stem fitting tube, and horizontally places a nozzle 40 on the lower surface of the top wall. Is extended outward. The stem fitting cylinder is formed as a double cylinder in the illustrated example, but may be a single cylinder. The lower part of the stem fitting tube 39 is slidably inserted into the guide tube 6 of the mounting tube 3 described above. The inside of the lower portion of the stem fitting cylinder 39 is a large inner diameter portion 44, and the upper end of the stem is fitted to the lower half of the upper cylinder portion. A plurality of second high-pressure air outflow grooves 41 are provided vertically on the inner surface of the stem fitting portion, and the upper end of the groove is provided higher than the upper end surface of the stem. A mouth tube 42 is fitted to the tip of the nozzle, and a foaming net 43 is stretched on the inner end of the mouth tube.
[0024]
A foam member fitting cylinder 45 inserted into the upper end of the stem is fitted into the upper part of the stem fitting cylinder 39 with the lower part as a small outer diameter cylinder part. The foaming member fitting part length of the fitting cylinder hole is formed to be a length that allows a plurality of foaming members to be fitted vertically. That is, as the length of the foam member is a multiple of the length of the foam member, a plurality of foam members are fitted into the fitting cylinder hole as shown in FIG. 1, or the foam member is fitted alone as shown in FIGS. To be able to. The small outer diameter cylindrical portion 46 inserted into the upper end of the stem has an inward flange at its lower end, and the ball valve is pushed up by the liquid that has passed through the discharge valve from the lower surface of the flange, so that the flange hole of the inward flange The blocking piece 48 is suspended so that 47 is not blocked. Between the inward flange and the discharge valve 34, the liquid that has passed through the discharge valve and the high-pressure air that has flowed out through the high-pressure air outflow groove 41 and the inner surface of the upper portion of the stem and the outer surface of the small outer diameter cylindrical portion 46 are provided. And a mixing chamber 49 is provided. The foam member fitting cylinder is not necessarily required, and the foam member may be directly fitted into the upper portion of the stem fitting cylinder.
[0025]
The foam member 50 is formed by stretching a foam net 52 on the upper surface of the short cylinder 51.
[0026]
The outer diameter of the short cylinder is an outer diameter that can be fitted to the inner surface of the foam member fitting cylinder 45. In the first embodiment shown in FIGS. 1 to 3, the lower foam member is inverted and the upper foam member is upright. Yes. In the second embodiment shown in FIG. 4, the inverted foam member 50 is fitted in the lower part of the foam member fitting cylinder 45, and in the third embodiment shown in FIG. 5, the foam member is placed in the upper part of the fitting cylinder 45. Erect.
[0027]
The large-diameter cylindrical piston 60 has an inner cylinder 61 side at each intermediate portion between the inner cylinder 61 slidably fitted to the upper outer surface of the stem 33 and the outer cylinder 62 fitted to the inner surface of the large-diameter cylinder. It is formed by connecting horizontal plate parts at the upper and lower ends of a cylindrical flange 63 with a staircase that is high and the outer cylinder 62 side is low, and a plurality of first outside air suction holes 64 are formed in the flange portion adjacent to the inner cylinder 61. ing. The upper end of the inner cylinder 61 is a thin elastic part that expands slightly upward and outward, and its tip is in airtight pressure contact with the inner surface of the large inner diameter part 44 below the stem fitting cylinder 39. A plurality of protrusions 65 are attached to the inner surface of the vertical cylindrical portion depending from the outer periphery of the upper horizontal plate portion. Further, a small gap is provided between the inner cylinder 61 and the locking cylinder 66 is erected from the upper horizontal plate portion, and the first outside air suction hole 64 is formed in the horizontal plate portion in the small gap. Has been established. The large diameter cylindrical piston 60 has a lower limit when the lower end of the inner cylinder 61 is fitted to the inner surface of the short cylinder 36 of the outward flange-like wall 35 of the stem as described above, and the stem as shown in FIG. The inner cylinder 39a of the fitting cylinder 39 has a lower stroke when the lower end of the inner cylinder 39a is tightly fitted between the inner cylinder 61 and the locking cylinder 66 of the large-diameter cylindrical piston and the first outside air suction hole 64 is sealed. Only the stem 33 can be moved up and down. A plurality of first high-pressure air outflow grooves 67 are formed on the outer surface of the stem portion on which the inner cylinder 61 of the large-diameter cylindrical piston slides within the range of moving up and down by the small stroke. Communication between the lower end of the groove and the inside of the large-diameter cylinder is blocked by contact between the lower end of the inner cylinder of the large-diameter cylindrical piston and the outward flange-like wall 35.
[0028]
A first outside air intake valve element 70 is fitted to the lower half outer surface of the inner cylinder 61 of the large-diameter cylindrical piston 60. The valve body projects a thin elastic outward flange-like wall 72 from the lower end of the short cylinder 71 fitted to the lower half outer surface of the inner cylinder, and forms a thick end at the tip. The upper surface of the thick portion is pressed against the lower surface of the intermediate horizontal plate portion to form the first outside air intake valve 73.
[0029]
Reference numeral 80 denotes a second outside air suction valve body fitted to the outer surface of the locking cylinder 8 of the mounting cylinder 3, and the valve body is located above the lower outer surface of the cylinder portion 81 that is fitted to the outer surface of the locking cylinder. The elastic reverse skirt-like portion 82 protrudes outward, and its tip is brought into pressure contact with the upper inner surface of the large-diameter cylinder peripheral wall 11a to form the second outside air intake valve 83. Further, the small cylinder 84 is suspended from the lower inner surface of the cylindrical portion via an inward flange, and the inner surface of the small cylinder 84 is a large-diameter cylindrical piston in a state where the operating member 30 is at the upper limit as shown in FIG. It is provided so as to be in watertight pressure contact with the outer surface of the lower vertical cylindrical portion of 60.
[0030]
90 is a rod-like member that rises from the bottom of the small-diameter cylinder 12 and inserts the upper part into the lower part of the stem 33. The combined stoppers 91 protrude. The lower end of the rod-shaped member 90 forms a liquid suction valve body 93, and when the rod-shaped member is lowered, the valve body closes the liquid suction valve hole of the small diameter cylinder portion. The upper end portion of the rod-shaped member is a large-diameter portion 92, and the large-diameter portion is held by a ridge inner surface vertically provided on the stem inner surface so as to be forcibly slidable. Therefore, when the actuating member 30 is lowered, when the stem 33 and the rod-like member 90 are both lowered and the lower end of the rod-like member 90 closes the liquid suction valve hole, the rod-like member stops and only the actuating member 30 having the stem 33 is lowered. When the actuating member is raised, the rod-shaped member 90 is also raised together with the stem 33, but the rod-shaped member 90 is stopped when the stopper 91 comes into contact with the lower surface of the coil spring 25, and thereafter only the actuating member 30 is raised. The members other than the coil spring 25, the ball valve of the discharge valve 34, and the nets may be integrally formed of a synthetic resin material.
[0031]
【The invention's effect】
In the present invention, the foam member 50 is formed by stretching the foam net 52 on the upper surface of the short cylinder 51, and the cylindrical hole portion for fitting the foam member is elongated in the vertical direction. Since the plurality of foam members 50 are formed to have a length that can be continuously fitted, and the single or plural foam members 50 are fitted into the cylindrical hole portion, the number of the foam members and the foam member normal and reverse By changing the direction of the foam, it is easy to obtain a foam discharge pump container capable of foaming bubbles having a diameter suitable for the application.
[0032]
Also, a thin elastic outward flange-like wall 72 with a thickened tip is projected from the lower end of the short cylinder 71 fitted to the outer surface of the lower part of the flange of the inner cylinder 61 of the large-diameter cylindrical piston. Then, the first outside air intake valve 73 is formed by the lower surface of the horizontal plate portion of the cylindrical flange 63 having a step, in which the elastic outward flange-shaped wall and the upper surface of the distal end of the outward flange-shaped wall are pressed against each other. The elastic deformation of the outward flange-like wall 72 is easy and the thick-walled portion can be used to ensure the opening and closing of the valve. From the inner periphery of the horizontal plate where the elastic outward-flange-like wall tip is in contact Since a plurality of projections 65 are provided on the inner surface of the upright vertical cylinder portion, the first outside air intake valve body 70 that protrudes obliquely outward from the distal end of the short cylinder 71 is formed on the large-diameter cylinder. When the piston is fitted to the inner cylinder 61 in the opposite direction, it is It will not have any function as a suction valve, thus it is possible to immediately discover errors in the valve body mounting.
[0033]
Further, the second outside air intake valve body 80 is formed by projecting an elastic reverse skirt-like portion 82 from the lower portion of the cylindrical portion 81 upward and outward, and the cylindrical portion 81 has a small gap between the inner surface of the large-diameter cylinder peripheral wall. Then, the second outside air intake valve 83 is formed by fitting to the outer surface of the locking cylinder 8 that hangs down from the top wall of the mounting cylinder 3 and pressing the tip of the elastic reverse skirt-like portion against the upper inner surface of the peripheral wall of the large-diameter cylinder. Even if the air in the container whose pressure has been increased due to temperature rise or the like enters the upper part of the large-diameter cylinder through the small hole 16 at the proximal end of the cylinder member outward flange, the second external air intake valve body 80 is locked by the high-pressure air. There is no risk of falling out of 8.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a container of the present invention.
FIG. 2 is a longitudinal sectional view showing the container in a state in which an operation member is pushed down;
FIG. 3 is a longitudinal sectional view showing the container shown in FIG.
FIG. 4 is a cross-sectional view of a main part of a container shown in a second embodiment.
FIG. 5 is a cross-sectional view of the main part of the container shown in the third embodiment.
[Explanation of symbols]
3 Installation cylinder 8 Locking cylinder
10 Cylinder member 30 Actuating member
33 Stem 37 Pressing head
50 Foam parts

Claims

The container body 1 that stands up the mouth-and-neck part 2, the peripheral wall 4 is screwed onto the outer surface of the mouth-and-neck part, the mounting cylinder 3 that hangs down the guide cylinder 6 from the opening peripheral edge at the center of the top wall, and the upper end of the mouth-and-neck part A cylinder member 10 having a large cylinder 11 in the upper half and a small cylinder 12 in the lower half, and a large diameter into both the large and small cylinders. And an operating member 30 that fits the small-diameter cylindrical pistons 60, 31 and stands up in an upward biased state,
The actuating member is fitted into the outer surface of the upper end portion of the stem 33 erected from the small-diameter cylindrical piston 31 from the lower portion of the stem fitting tube 39 which is inserted into the guide tube 6 from the pressing head 37 with the nozzle 40 and hangs down. At the same time, a large-diameter cylindrical piston 60 is fitted to the outer surface of the upper part of the stem so that it can move up and down by a small stroke.
And it is formed by fixing the foam member 50 into the upper part of the stem fitting cylinder,
By pressing down the operating member, the liquid in the small diameter cylinder passes through the stem 33, the air in the large diameter cylinder passes through the large diameter cylindrical piston 60 and the stem fitting cylinder 39 and the outer surface of the stem. Foamed by passing and discharged from the nozzle 40,
Also, the liquid in the container is moved into the small-diameter cylinder by raising the operating member, and the outside air is passed into the large-diameter cylinder through the gap between the guide cylinder and the stem fitting cylinder and the first external air suction valve 73 provided in the large-diameter cylindrical piston. Inflow is possible, and the above-mentioned gap due to the negative pressure in the container, the second outside air suction valve provided between the guide cylinder and the peripheral wall of the large-diameter cylinder, the small hole 16 formed in the outward flange of the cylinder member, and the container In the foam discharge pump container in which outside air can flow into the container through the body neck and the large diameter cylinder,
The foam member 50 is formed by stretching the foam net 52 on the upper surface of the short cylinder 51, and the length of the foam hole for fitting the foam member is fitted into the cylinder hole. is to that cylinder bore as a multiple, one or more of the foamed member, positive, froth foam pump container which is characterized in that is fitted in an inverted one of the states.

At each intermediate portion between the inner cylinder 61 fitted with the outer surface of the stem 33 and the outer cylinder 62 fitted with the inner surface of the large diameter cylinder, the inner cylinder 61 side is high and the outer cylinder 62 side is low. The cylindrical flange 63 with stairs is formed by connecting the horizontal plate portions at the upper and lower ends, and the first outside air suction hole 64 is formed in the flange portion adjacent to the inner cylinder 61, and the large diameter below the flange 63 is formed. From the lower end of the short cylinder 71 fitted to the outer surface of the inner cylinder 61 portion of the cylindrical piston, projecting a thin elastic outward flange-like wall 72 with a thick end at the tip, A first outside air intake valve 73 is formed by the flange-like wall and the horizontal lower surface of the cylindrical flange with the stepped flange with the upper surface of the front end of the outward flange-like wall pressed against each other, and the elastic outward-flange-like wall 72 A plurality of protrusions rise from the inner periphery of the horizontal plate that the tip of the tube contacts to the inner surface of the vertical tube portion facing the outer surface of the short tube 71. Characterized by being attached to 65, the foam release pump container according to claim 1, wherein.

The locking cylinder 8 is suspended from the top wall of the mounting cylinder 3 with a small gap between the inner surface of the large-diameter cylinder peripheral wall 11a and the upper part of the cylinder 81 is fitted to the outer surface of the locking cylinder. A second outside air intake valve 80 is formed by projecting the elastic reverse skirt-like portion 82 and the upper inner surface of the large-diameter cylinder peripheral wall 11a in which the elastic reverse skirt-like portion 82 and the tip of the reverse skirt-like portion are pressed against each other. The foam discharge pump container according to claim 1 or 2, wherein the foam container is a foam discharge pump container.