JP2004358284A

JP2004358284A - Manual spray vessel

Info

Publication number: JP2004358284A
Application number: JP2003155905A
Authority: JP
Inventors: Kazuhito Kuwabara; 和仁桑原; Takayuki Goto; 孝之後藤
Original assignee: Yoshino Kogyosho Co Ltd
Current assignee: Yoshino Kogyosho Co Ltd
Priority date: 2003-05-30
Filing date: 2003-05-30
Publication date: 2004-12-24
Anticipated expiration: 2023-05-30
Also published as: JP4297253B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manual spray vessel in which a stem 12 is set in the central part of a cylindrical piston of a large diameter engaged with an air cylinder 4 of a large diameter, an actuation member C with a push-down head 13 engaged with the upper end part of the stem is provided, when the actuation member is pushed down, the pressure in a liquid discharge passage b is made negative by air passing through an air ejection passage a to be ejected from a nozzle hole 16, and the liquid in the vessel is sucked up, mixed with the ejected air, and sprayed and which can prevent inconvenient liquid leakage in the absence of a cover cap, a stopper, etc., even when the vessel falls. <P>SOLUTION: A movable valve body E which closes an outside air introduction hole h while the actuation member C is locked at the lowest position and opens it otherwise is interlocked with the vertical movement of the actuation member to change its position. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は手動噴霧容器に関する。
【０００２】
【従来の技術】
手動噴霧容器として、ノズル孔内に噴出液体を高速回転させる、所謂スピン機構を設けて、ノズル孔から高速回転しながら噴出した液体が外気に触れ、霧化する様設けたものが知られている。これらは、容器体内収納液体の品質によりその霧化が困難となる場合があった。
【０００３】
そこで、この様な点を考慮して、ノズル孔から高速噴出する空気で液体を吸い上げ、空気と共に霧として噴出させることが出来る手動噴霧容器が提案されている（例えば、特許文献１参照）。
【０００４】
この噴霧容器は、上部の大径の空気シリンダの下部に小径の液体シリンダを延設して容器体内へ垂下させるシリンダ部材と、液体シリンダ内から起立するステム上部に押し下げヘッドを嵌着させるとともに、ステム中間部を空気シリンダ内へ嵌合させた大径筒状ピストン中心部に貫設し、且つ、押し下げヘッドの上部内に射出管を横設して上方付勢状態で上下動可能に設けた作動部材とを備え、射出管内を通って射出管前方へ穿設されたノズル孔と空気シリンダ内とを連通する空気噴出路と、射出管外面に沿ってノズル孔とステム内とを連通する液体流出路とを設けて、作動部材の押し下げ時に、空気シリンダ内空気が空気噴出路を通りノズル孔から噴出することで、液体流出路内が負圧化し、該負圧化で容器体内液体が噴出空気と混合して噴霧可能としている。
【０００５】
また、これらは一般にその空気シリンダの上部に外気導入孔を穿設している。これらの外気導入孔は、作動部材を上下動させて容器体内の液を噴霧する際に、液の減少に伴って負圧化する容器体内に外気を導入するためのもので、作動部材外面と装着キャップの内周縁部との隙間から外気導入孔を介して容器体内に外気を導入する如く構成している。
【０００６】
【特許文献１】
特開平１１−２３９７４４号公報（第２−７頁，図１）
【０００７】
【発明が解決しようとする課題】
上記した手動噴霧容器は、射出空気圧を高めることで、霧化し難い液体であっても容易に且つ確実に霧化させることが出来る優れたものである。
【０００８】
本発明は上記従来品の利点を発揮することができ、しかも不使用時の作動部材の押し下げ係止状態で容器を倒すことがあっても、カバーキャップやストッパーなどの存在なしに、容器体内から空気シリンダ内への液の漏出を防止することができ、しかも従来容器と比較して大幅な構造の変化を伴わずに容易に製造できる優れたポンプを提案するものである。
【０００９】
【課題を解決するための手段】
本請求項１発明の容器は上記課題を解決するため、容器体Ａ内に垂下させた大径の空気シリンダ４と、該空気シリンダへ嵌合させた大径筒状ピストン中心部にステム１２を貫設するとともに、ステムの上端部に押下ヘッド１３を嵌着し、且つ、押下ヘッド１３内に射出管１５を横設して上方付勢状態で上下動可能に設けた作動部材Ｃとを備え、射出管前方に穿設されたノズル孔１６と空気シリンダ４内とを射出管１５内を介して連通する空気噴出路ａを設けるとともに、ノズル孔１６とステム１２内とを射出管外周部を介して連通する液体流出路ｂを設け、作動部材の押し下げ時に、空気噴出路ａを通りノズル孔１６から噴出する空気により液体流出路ｂ内が負圧化し、該負圧化で容器体内液体が吸い上げられ、噴出空気と混合して噴霧される如く構成した手動噴霧容器に於いて、上記作動部材を押し下げ状態で係止可能に形成するとともに、上記空気シリンダ４に外気導入孔ｈを設け、且つ、該外気導入孔を開閉可能に閉塞する可動弁体Ｅを設けてなり、上記作動部材が最下降の係止状態に移行する際に作動部材Ｃにより可動弁体Ｅが押し下げられて外気導入孔ｈの閉塞状態に移行するとともに、作動部材Ｃが最上昇状態に移行する際に大径筒状ピストン１４により押し上げられて外気導入孔ｈ開放状態に移行し、且つ、作動部材Ｃが液噴出のための上下動時には外気導入孔ｈ開放状態を維持する如く構成したことを特徴とする手動噴霧容器として構成した。
【００１０】
【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。
【００１１】
本発明の手動噴霧容器１は、容器体Ａと、シリンダ部材Ｂと、作動部材Ｃとを備えている。
【００１２】
容器体Ａは、筒状の胴部２より口頸部３を起立している。
【００１３】
シリンダ部材Ｂは、大径の空気シリンダ４の下部に小径の液体シリンダ５を延設して容器体Ａ内へ垂下させている。図示例では、装着キャップＤに空気シリンダ４の上端を固定しており、装着キャップＤは、容器体Ａの口頸部３外面へ嵌合させた周壁６上端より内向きフランジ状頂壁７を延設するとともに、頂壁７内周部から案内筒９を起立している。そして、空気シリンダ４の外周上部より外方へ突周設した断面鉤型の係合突条を上記頂壁７下面の係合凹部に嵌着させて固定しており、また、空気シリンダ４下端の内向きフランジ状底壁１０内周から、小径の液体シリンダ５を垂下し、該シリンダ下端から吸い上げパイプ１１を容器体内底部まで垂下する。
【００１４】
作動部材Ｃは、液体シリンダ５内から起立するステム１２上端部に押下ヘッド１３を嵌着させるとともに、ステム中間部を空気シリンダ４内へ嵌合させた大径筒状ピストン１４中心部に貫設し、且つ、押下ヘッド１３の上部内に射出管１５を横設して上方付勢状態で上下動可能に設けたものである。
【００１５】
また、射出管１５前方に穿設されたノズル孔１６と空気シリンダ４内とを射出管１５内を介して連通する空気噴出路ａを設けるとともに、ノズル孔１６とステム１２内とを射出管１５外周部を介して連通する液体流出路ｂを設け、作動部材の押し下げ時に、空気噴出路ａを通りノズル孔１６から噴出する空気により液体流出路ｂ内が負圧化し、該負圧化で容器体内液体が吸い上げられ、噴出空気と混合して噴霧される如く構成している。
【００１６】
図示例では、液体シリンダ５内周に嵌合した小径筒状ピストン１７を下端部外周より突設したステム１２の上端に押下ヘッド１３を嵌着している。また、押下ヘッド１３は、周壁１８ａ上端より頂壁１８ｂを延設した下端開口の有頂筒状をなすケーシング１８内上部に前端を開口した横筒１９を横設し、また、この横筒１９内に先端に噴出口を開口した射出管１５を嵌着している。更に、この横筒１９内に上端を連通させて垂下するとともに、下端部をステム１２内周上端部に嵌合した縦内筒２０と、該縦内筒２０外周部分に垂下するとともに、ステム１２外周上端部に下端部を隙間をあけて垂下した縦外筒２１とを備えている。
【００１７】
また、空気シリンダ４内へ嵌合させた大径筒状ピストン１４の中央部に基筒部１４ａを貫設して、該基筒部１４ａの上部は押下ヘッド１３の上記縦外筒２１下部内面へ気密に、且つ小ストローク上下動可能に嵌合させる。又、ステム１２は小径の液体シリンダ５内へ設けたコイルスプリング２２で上方付勢させ、該上方付勢により、後述する可動弁体の下面を大径筒状ピストン１４の隔壁部１４ｂ上面へ、また、基筒部１４ａの下端面をステム１２の中間部外面へ付設した受座２３の上面へ、それぞれ圧接させている。
【００１８】
大径筒状ピストン１４の基筒部１４ａと、外周筒状部１４ｃとの間の隔壁部１４ｂは、図示例において、その径方向中間部を起立筒部とし、且つ基筒部１４ａに接する隔壁部部分に複数の外気吸込み弁孔２４を穿設し、また、基筒部１４ａの下部外面に合成樹脂製筒部２５を気密に嵌着させるとともに、該筒部の下部外面から上外方へ外向きフランジ状弾性薄板２６を突出して、該弾性薄板の外周縁を、外気吸込み弁孔２４よりも外方の隔壁部１４ｂ下面へ圧接させて、これらで外気吸込み弁２７を形成している。
【００１９】
空気噴出路ａは、基筒部１４ａの下端面から、ステム１２と基筒部１４ａとの間、ステム１２と縦外筒２１との間、縦内筒２０と縦外筒２１の間を通り射出管１５内に連通し、更に、小空隙部２８を通ってノズル孔１６と連通する如く構成しており、また、液体流出路ｂは、ステム１２内から縦内筒２０内を介して横筒１９に穿設した透孔２９を通り、更に射出管１５周囲の隙間３０、小空隙部２８を通ってノズル孔１６と連通する如く構成している。更に、基筒部１４ａ下端面と受座２３上面とで空気吐出弁３１を、又、ステム１２内に液止め弁３２を設ける。
【００２０】
また、ステム内には係合突条３３を周設させている。小径液体シリンダ５の下部内面へ複数縦設した係合起立板の中間部内面に上向きの係合段部を設け、その係合起立板間に上下動自在に嵌合させた係合突子を下部外面に複数付設した棒３４を液体シリンダ５内へ、棒上部はステム１２内へ挿通させて遊嵌している。棒上端部は、半球状に上部を大径部としてその上部外面を、係合突条３３上面へ水密に係合させ液漏れ防止弁３５を形成している。また、その棒３４を遊挿させて、小径シリンダ下部と小径筒状ピストン１７との間には、上記コイルスプリング２２を、該スプリング下端を係合起立板の係合段部上へ載置させて設けて、小径筒状ピストン１７を介して作動部材Ｃを上方付勢し、該上方付勢により係合突条３３を介して棒３４を、係合突子がコイルスプリング２２下端面へ圧接する状態に引き上げている。
【００２１】
本発明ではこの種の手動噴霧容器に於いて、上記作動部材Ｃの押し下げ状態で係止可能に構成している。この様にすることにより、不用意に押し下げヘッドを押し下げる等を防止でき、無用な液の噴霧を防止することができる。具体的には種々の手段が採用できるが、本実施例では、図２に示す如く、押下ヘッド１３の縦外筒２１外面所定位置に挿通係合用のレール３６を突縦設する一方、上記装着キャップＤの案内筒９上端より内方へフランジ状の係止突条３７を突設し、この係止突条３７に上記レール３６が挿通可能な案内切欠３８を穿設する。そして、常時はレール３６の下部が案内切欠３８に押し下げ可能に嵌合して作動部材Ｃの上下動が可能に構成しており、また、必要に応じてレール３６の上端が係止突条３７の下面位置に至るまで作動部材Ｃを押し込んだ後回動させることによりレール３６の上端が係止突条３７下面に当接係止されて作動部材Ｃの押し下げ係止状態を維持する如く構成している。
【００２２】
本実施例では、上記レール３６の外に切り換え用の突条３９を縦外筒２１外面所定位置に突縦設し、一方、上記係止突条３７の内面所定位置に相互の乗り越え係合が可能に一対の第１係合凹部４０，第２係合凹部４１を凹設している。そして、切り換え用の突条３９が第１係合凹部４０に係合している際に上記レール３６が案内切欠３８と係合し、第２係合凹部４１に係合させた際にその位置からずれた係止突条位置に位置する如く構成している。
【００２３】
本発明ではまた、上記空気シリンダ４に、噴霧に伴う容器体内の液の減少に当たって容器体Ａ内が負圧化するのを防止するための外気導入孔ｈを設けるとともに、この外気導入孔ｈを開閉可能に閉塞する可動弁体Ｅを設けている。
【００２４】
上記可動弁体Ｅは、上記作動部材Ｃが最下降の係止状態に移行した際に作動部材Ｃにより可動弁体Ｅが押し下げられて外気導入孔ｈの閉塞状態に移行するとともに、作動部材Ｃが最上昇状態に移行する際に大径筒状ピストン１４により押し上げられて外気導入孔ｈ開放状態に移行し、且つ、作動部材Ｃが液噴出のための上下動時には外気導入孔ｈ開放状態を維持する如く構成している。
【００２５】
図示例に於いて可動弁体Ｅは、上記大径筒状ピストン１４上方の空気シリンダ４内面に外周縁の筒状シール部４２を嵌合させるとともに、該筒状シール部４２より内方の上記縦外筒２１外周近傍位置までフランジ状壁４３を延設している。フランジ状壁４３は中央へ昇る階段状をなし、下面より押圧用突部４４を突設している。そして、上記コイルスプリング２２による通常の上方付勢状態、即ち最上昇状態では大径筒状ピストン１４により押圧用突部４４が押し上げられて上面が装着キャップＤの頂壁７下面に当接した状態で係止されている。この際筒状シール部４２は外気導入孔ｈ上方に位置している。
【００２６】
また、縦外筒２１の外面所定位置にはリブを突設することにより形成した下向き段部４５を設けており、再上昇位置から作動部材Ｃを上記レール３６が係止突条３７に係合する位置、即ち最下降の係止状態まで押し下げると、途中で下向き段部４５が可動弁体Ｅのフランジ状壁４３上面内周縁部に当接し、その筒状シール部４２が外気導入孔ｈを閉塞する位置まで押し下げる如く構成している。
【００２７】
上記噴霧容器を使用する場合について説明すると、図１が示す状態から数回作動部材Ｃを上下動させることで液体シリンダ内に液体が入る。該状態から作動部材Ｃを押し下げすると、まず大径筒状ピストン１４に対してステム１２が押下ヘッド１３とともに下降して空気吐出弁３１が開き、次いで押下ヘッド１３の縦外筒２１下端が大径筒状ピストン１４の隔壁部１４ｂ上面に接して、空気吐出弁３１を開いたままで大径筒状ピストンもステム１２とともに下降する。
【００２８】
このとき外気吸込み弁２７は閉塞しているから、空気シリンダ４内の空気は空気噴出路ａ及び小空隙部２８を通ってノズル孔１６から噴出する。この時小空隙部２８の外周部は負圧化するから、該小空隙部に連通する液体流出路ｂ内も負圧化することとなり、よって液体流出路ｂを介して液体シリンダ５内液体が小空隙部２８内へ吸い出され、該小空隙部内へ吸い出された液体は上記噴出空気と混合してノズル孔１６から霧となって噴出する。
【００２９】
押下ヘッド１３を放すと空気噴出は停止するため、小空隙部２８内の負圧状態が解消し、すると液止め弁３２は閉塞する。また、大径筒状ピストン１４に先だってステム１２が上昇することで空気吐出弁３１が閉じ、次いで大径筒状ピストン１４も受座２３で、引き上げられるため、空気シリンダ４内が負圧化し、よって外気吸込み弁２７が開いて外気を空気シリンダ内へ吸入する。一方、液体シリンダ５内には吸い上げパイプ１１を介して容器体Ａ内の液が吸引される。尚、この際、可動弁体Ｅは図１の状態を維持しているため、外気導入孔ｈは開いた状態にあり、容器体内の液の減少による負圧化に伴い外気が外気導入孔ｈを介して容器体Ａ内へ導入される。
【００３０】
また、不使用時には作動部材Ｃを押し下げて回動させて上記係止突条３７下面にレール３６上面を係合させる。この際縦外筒２１外面に設けた下向き段部４５が可動弁体Ｅを押し下げて、その筒状シール部４２が外気導入孔ｈを閉塞する位置まで押し下げる。従って、不使用時の作動部材Ｃの押し下げ係止時には常時外気導入孔ｈは閉塞されている。この際、液止め弁３２の弁座下面の嵌合凹部４６内に棒３４先端が液密に嵌合してこの部分のシール性を図っている。また、その状態からレール３６の係合を外して作動部材を上昇させると、大径筒状ピストン１４により可動弁体Ｅは上端所定位置まで押し上げられる。尚、図示例では、ステム内面上端に嵌合させた嵌合筒の内面より、液止め弁のボール移動量を規制するリブを突設している。
【００３１】
図７及び図８は本発明の他の実施例を示すもので、本実施例では、図１の実施例に於いて、コイルスプリング２２を液体シリンダ５外部に介在させた例を示す。上記シリンダ部材Ｂに代えて、大径の空気シリンダ４の下部に小径のカバー筒４７を延設し、該カバー筒４７内に小径の液体シリンダ５を起立したシリンダ部材Ｂ_１を備えている。そして、液体シリンダ５外周のカバー筒４７底部とステム１２の上記受座２３との間にコイルスプリング２２を介在させて作動部材Ｃを上方付勢させている。従って、性能上から金属製のものが好ましく使用されるコイルスプリング２２を直接液と接触させることなく使用できるものであり、金属との接触を好まない収納液の使用が可能となり、その結果収納する液の制限が大幅に少なくなる。また、棒３４の下端部を液体シリンダ５内下端部に、外周より突設した係止リブを嵌着固定している。その他の構成は図１の実施例と同様であるための説明を省略する。
【００３２】
図９及び図１０は本発明の更に他の実施例を示すもので、本実施例では、図１の実施例に於いて、上記シリンダ部材Ｂに代えて、大径の空気シリンダ４の下部に有底で小径のカバー筒４７を延設し、そのカバー筒４７の底壁より空気シリンダ４内に至る上下端開口の摺動用筒４８を立設し、更に、摺動用筒４８の上端部外周をステム１２内周に上下摺動可能に嵌合させたシリンダ部材Ｂ_２を備えている。また、ステム１２は上記小径筒状ピストン１７及び上記係合突条３３を備えておらず、また、上記吸い上げパイプ１１は摺動用筒４８の上端部まで嵌着している。更に、上記受座２３とカバー筒４７の底壁との間にコイルスプリング２２を介在させ、液との接触がないように構成している。また、摺動用筒４８の上端部より上方に液の流通が可能な如く支持板を介して上記嵌合凹部４６に液密に嵌合する嵌合突起４９を延設している。その他の構成は図１の実施例と同様であるため説明を省略する。
【００３３】
上記各部材は主として合成樹脂により形成し、必要に応じてエラストマー，金属等を併用して形成すると良い。
【００３４】
【発明の効果】
以上説明した如く、本発明手動噴霧容器は、既述構成としたことにより、作動部材を押し下げ係止させておくことができ、その際、カバーキャップやストッパーなどの存在がなくても、空気シリンダに設けた外気導入孔を可動弁体が閉塞して不都合な液の漏出防止を図ることができるものである。しかも、可動弁体は作動部材が最上昇状態に移行する際に押し上げられて外気導入孔開放状態に移行し、作動部材が液噴出のための上下動時には外気導入孔開放状態を維持するため、通常の使用時には容器体への外気の円滑な導入が行えるとともに、作動部材を上下動させる際に自動的に可動弁体が所定の状態に移行できるため取り扱いも極めて便利である。
【図面の簡単な説明】
【図１】本発明の一実施例を示す縦断面図である。
【図２】同実施例の押し下げヘッドの係止機構を説明する説明図である。
【図３】同実施例の押し下げヘッドの係止機構を説明する説明図である。
【図４】同実施例の射出管部分の要部拡大断面図である。
【図５】同実施例の空気シリンダ部分の要部拡大断面図である。
【図６】同実施例の作動部材を押し下げ係止した状態の縦断面図である。
【図７】本発明の他の実施例を示す縦断面図である。
【図８】同実施例の作動部材を押し下げ係止した状態の縦断面図である。
【図９】本発明の更に他の実施例を縦断面図である。
【図１０】同実施例の作動部材を押し下げ係止した状態の縦断面図である。
【符号の説明】
４…空気シリンダ，１２…ステム，１３…押下ヘッド，１５…射出管，
１６…ノズル孔，ａ…空気噴出路，ｂ…液体流出路，ｈ…外気導入孔，
Ａ…容器体，Ｃ…作動部材，Ｅ…可動弁体[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a manual spray container.
[0002]
[Prior art]
2. Description of the Related Art As a manual spray container, there is known a so-called spin mechanism that rotates a jet liquid at a high speed in a nozzle hole, so that the jetted liquid comes into contact with the outside air and atomizes while rotating at a high speed from the nozzle hole. . These may be difficult to atomize depending on the quality of the liquid stored in the container.
[0003]
Therefore, in consideration of such a point, a manual spray container that can suck up a liquid with air ejected at a high speed from a nozzle hole and eject the liquid as mist together with the air has been proposed (for example, see Patent Document 1).
[0004]
This spray container has a cylinder member that extends a small-diameter liquid cylinder below the large-diameter air cylinder at the top and hangs down into the container body. The stem middle part penetrated through the center of the large-diameter cylindrical piston fitted into the air cylinder, and the injection pipe was provided horizontally above the push-down head so as to be vertically movable in the upwardly biased state. An air ejection path communicating the inside of the air cylinder with the nozzle hole drilled forward of the injection tube through the injection tube, and a liquid communicating the nozzle hole with the inside of the stem along the outer surface of the injection tube. An outflow path is provided, and when the operating member is pressed down, the air in the air cylinder is ejected from the nozzle hole through the air ejection path, so that the inside of the liquid outflow path is negatively pressurized. Mix with air It is made possible fog.
[0005]
These generally have an outside air introduction hole formed in the upper part of the air cylinder. These outside air introduction holes are for introducing outside air into the container body, which becomes negative pressure with the decrease of the liquid when moving the operating member up and down and spraying the liquid in the container body, and It is configured such that outside air is introduced into the container via a space between the inner peripheral edge of the mounting cap and the outside air introduction hole.
[0006]
[Patent Document 1]
JP-A-11-239744 (page 2-7, FIG. 1)
[0007]
[Problems to be solved by the invention]
The above-described manual spray container is an excellent one that can easily and reliably atomize even a liquid that is difficult to atomize by increasing the injection air pressure.
[0008]
The present invention can exhibit the advantages of the above-mentioned conventional products, and even when the container is turned down while the operating member is being pushed down and locked when not in use, without the presence of a cover cap, a stopper, etc. It is an object of the present invention to provide an excellent pump which can prevent liquid from leaking into an air cylinder and can be easily manufactured without a significant structural change compared to a conventional container.
[0009]
[Means for Solving the Problems]
In order to solve the above problem, the container of the present invention has a large-diameter air cylinder 4 suspended in a container body A, and a stem 12 at the center of a large-diameter cylindrical piston fitted to the air cylinder. An operating member C which penetrates, fits the pressing head 13 at the upper end of the stem, and has an injection tube 15 provided horizontally in the pressing head 13 so as to be vertically movable in an upwardly biased state. An air ejection path a is provided for communicating the nozzle hole 16 formed in front of the injection tube with the inside of the air cylinder 4 via the inside of the injection tube 15, and the nozzle hole 16 and the inside of the stem 12 are connected to the outer periphery of the injection tube. A liquid outflow path b is provided through which the liquid in the liquid outflow path b is negatively pressured by the air ejected from the nozzle hole 16 through the air ejection path a when the operating member is depressed. It is sucked up and mixed with the blast air and sprayed In the manual spray container configured as described above, the operating member is formed so as to be locked in a depressed state, the air cylinder 4 is provided with an outside air introduction hole h, and the outside air introduction hole is opened and closed. When the operating member shifts to the lowest locking state, the movable member E is pushed down by the operating member C to shift to the closed state of the outside air introduction hole h, and the operating member C Is moved up to the highest position, it is pushed up by the large-diameter cylindrical piston 14 to shift to the open state of the outside air introduction hole h, and when the operating member C moves up and down for ejecting liquid, the open state of the outside air introduction hole h is changed to the open state. It was configured as a manual spray container characterized by being configured to maintain.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
The manual spray container 1 of the present invention includes a container body A, a cylinder member B, and an operating member C.
[0012]
The container body A stands up the mouth and neck 3 from the tubular body 2.
[0013]
The cylinder member B has a small-diameter liquid cylinder 5 extending below the large-diameter air cylinder 4 and hanging down into the container body A. In the illustrated example, the upper end of the air cylinder 4 is fixed to the mounting cap D, and the mounting cap D has a flange-like top wall 7 facing inward from the upper end of the peripheral wall 6 fitted to the outer surface of the mouth and neck 3 of the container body A. The guide tube 9 extends from the inner peripheral portion of the top wall 7 while extending. An engagement ridge having a hook-shaped cross section projecting outward from the upper part of the outer periphery of the air cylinder 4 is fitted and fixed to the engagement recess on the lower surface of the top wall 7. The small-diameter liquid cylinder 5 is hung down from the inner periphery of the inward flange-shaped bottom wall 10, and the suction pipe 11 is hung down from the lower end of the cylinder to the bottom of the container.
[0014]
The operating member C has a press head 13 fitted on the upper end of the stem 12 rising from the inside of the liquid cylinder 5, and an intermediate portion of the stem penetrates the center of the large-diameter cylindrical piston 14 fitted into the air cylinder 4. In addition, the injection tube 15 is provided horizontally above the pressing head 13 so as to be vertically movable in an upwardly biased state.
[0015]
Further, an air ejection path a is provided for communicating the nozzle hole 16 formed in front of the injection tube 15 with the inside of the air cylinder 4 via the inside of the injection tube 15, and the nozzle hole 16 and the inside of the stem 12 are connected to the injection tube 15. A liquid outflow passage b communicating with the outer peripheral portion is provided, and when the operating member is pushed down, the air in the liquid outflow passage b is negatively pressured by air ejected from the nozzle hole 16 through the air ejection passage a, and the container is closed by the negative pressure. It is configured so that the body fluid is sucked up, mixed with the jet air, and sprayed.
[0016]
In the illustrated example, a pressing head 13 is fitted to the upper end of a stem 12 having a small-diameter cylindrical piston 17 fitted to the inner periphery of the liquid cylinder 5 projecting from the outer periphery of the lower end. Further, the pressing head 13 has a horizontal cylinder 19 having a front end opened laterally in an upper portion inside a casing 18 having a lower end opening and having a lower end opening extending from the upper end of the peripheral wall 18a to the top wall 18b. An injection tube 15 having an ejection port opened at the tip is fitted therein. Further, the upper end is communicated with the horizontal cylinder 19 to hang down, and the lower end portion is fitted to the upper end of the inner circumference of the stem 12. A vertical outer cylinder 21 is provided at the upper end of the outer periphery with the lower end hanging down with a gap.
[0017]
A base cylinder portion 14a is provided at the center of a large-diameter cylindrical piston 14 fitted into the air cylinder 4, and the upper portion of the base cylinder portion 14a is provided at the lower inner surface of the vertical outer cylinder 21 of the pressing head 13. To fit airtightly and to be able to move up and down by a small stroke. Further, the stem 12 is urged upward by a coil spring 22 provided in the small-diameter liquid cylinder 5, and by the upward urge, the lower surface of the movable valve body described later is moved to the upper surface of the partition wall 14 b of the large-diameter cylindrical piston 14. Further, the lower end surface of the base cylinder portion 14a is pressed against the upper surface of the receiving seat 23 attached to the outer surface of the intermediate portion of the stem 12, respectively.
[0018]
In the illustrated example, the partition wall portion 14b between the base cylindrical portion 14a of the large-diameter cylindrical piston 14 and the outer circumferential cylindrical portion 14c has a radially intermediate portion as an upright cylindrical portion and a partition wall in contact with the base cylindrical portion 14a. A plurality of outside air suction valve holes 24 are drilled in the portion, and a synthetic resin tube portion 25 is airtightly fitted to a lower outer surface of the base tube portion 14a, and upwardly and outwardly from a lower outer surface of the tube portion. The outward flange-shaped elastic thin plate 26 is projected, and the outer peripheral edge of the elastic thin plate is pressed into contact with the lower surface of the partition wall portion 14b outside the outside air suction valve hole 24 to form the outside air suction valve 27.
[0019]
The air ejection path a passes from the lower end surface of the base cylinder portion 14a, between the stem 12 and the base cylinder portion 14a, between the stem 12 and the vertical outer cylinder 21, and between the vertical inner cylinder 20 and the vertical outer cylinder 21. It is configured so as to communicate with the inside of the injection pipe 15 and further communicate with the nozzle hole 16 through the small gap portion 28, and the liquid outflow passage b extends horizontally from inside the stem 12 through the inside of the vertical inner cylinder 20. It is configured to communicate with the nozzle hole 16 through a through hole 29 formed in the cylinder 19, further through a gap 30 around the injection tube 15, and a small gap portion 28. Further, an air discharge valve 31 is provided on the lower end surface of the base cylinder portion 14a and the upper surface of the receiving seat 23, and a liquid stop valve 32 is provided in the stem 12.
[0020]
Further, an engaging ridge 33 is provided in the stem. An engagement projection is provided on an inner surface of an intermediate portion of a plurality of engagement standing plates vertically provided on a lower inner surface of the small-diameter liquid cylinder 5, and an engagement protrusion which is vertically movably fitted between the engagement standing plates. A plurality of rods 34 attached to the lower outer surface are inserted into the liquid cylinder 5 and the upper part of the rod is loosely fitted into the stem 12. The upper end of the rod has a hemispherical upper portion having a large diameter portion, and an upper outer surface thereof is water-tightly engaged with an upper surface of the engaging ridge 33 to form a liquid leakage prevention valve 35. Further, the rod 34 is loosely inserted, and the coil spring 22 is placed between the lower portion of the small-diameter cylinder and the small-diameter cylindrical piston 17 so that the lower end of the spring is placed on the engaging step of the engaging upright plate. The operating member C is urged upward through the small-diameter cylindrical piston 17, and the rod is pressed against the lower end surface of the coil spring 22 by the engaging ridge 33 by the upward urge. It has been raised to a state.
[0021]
In the present invention, in this type of manual spray container, the operation member C is configured to be able to be locked in a depressed state. By doing so, it is possible to prevent the head from being inadvertently pushed down and the head to be pushed down, and unnecessary spraying of the liquid can be prevented. More specifically, various means can be adopted. In this embodiment, as shown in FIG. 2, a rail 36 for insertion engagement is vertically provided at a predetermined position on the outer surface of the vertical outer cylinder 21 of the pressing head 13, while the mounting A flange-shaped locking ridge 37 protrudes inward from the upper end of the guide cylinder 9 of the cap D, and a guide notch 38 through which the rail 36 can be inserted is formed in the locking ridge 37. The lower portion of the rail 36 is normally fitted into the guide notch 38 so as to be able to be pushed down, so that the operation member C can be moved up and down. The upper end of the rail 36 is abutted against the lower surface of the locking ridge 37 by pushing the operating member C until the lower surface position of the operating member C is pressed and then rotated, so that the operating member C is kept pressed down. ing.
[0022]
In the present embodiment, a switching ridge 39 is provided vertically outside the rail 36 at a predetermined position on the outer surface of the vertical outer cylinder 21, while a crossover engagement is established at a predetermined position on the inner surface of the locking ridge 37. A pair of first engagement recesses 40 and second engagement recesses 41 are formed as possible. When the switching ridge 39 is engaged with the first engagement recess 40, the rail 36 engages with the guide notch 38, and when the rail 36 is engaged with the second engagement recess 41, the position thereof is adjusted. It is configured so as to be located at a locking ridge position deviated from the position.
[0023]
In the present invention, the air cylinder 4 is provided with an outside air introduction hole h for preventing the inside of the container body A from being negatively pressurized when the liquid in the container body is reduced due to the spraying. A movable valve body E that is openably and closably closed is provided.
[0024]
When the movable member E is shifted to the lowest locking state, the movable member E is pushed down by the operating member C to shift to the closed state of the outside air introduction hole h. Is moved up to the highest position, it is pushed up by the large-diameter cylindrical piston 14 to shift to the open state of the outside air introduction hole h, and when the operating member C moves up and down for ejecting liquid, the open state of the outside air introduction hole h is changed to the open state. It is configured to maintain.
[0025]
In the illustrated example, the movable valve body E has a cylindrical seal portion 42 on the outer peripheral edge fitted to the inner surface of the air cylinder 4 above the large-diameter cylindrical piston 14 and the movable valve body E inside the cylindrical seal portion 42. The flange-shaped wall 43 extends to a position near the outer periphery of the vertical outer cylinder 21. The flange-shaped wall 43 has a step-like shape ascending to the center, and has a pressing projection 44 projecting from the lower surface. In the normal upward biased state by the coil spring 22, that is, in the highest state, the large-diameter cylindrical piston 14 pushes up the pressing projection 44 so that the upper surface is in contact with the lower surface of the top wall 7 of the mounting cap D. It is locked by. At this time, the cylindrical seal portion 42 is located above the outside air introduction hole h.
[0026]
A downward step 45 formed by projecting a rib is provided at a predetermined position on the outer surface of the vertical outer cylinder 21. The rail 36 engages the operating member C with the locking ridge 37 from the re-elevated position. The lower step 45 contacts the inner peripheral edge of the upper surface of the flanged wall 43 of the movable valve element E, and the cylindrical seal portion 42 closes the outside air introduction hole h. It is configured so that it is pushed down to the closing position.
[0027]
The case where the above-mentioned spray container is used will be described. The liquid enters the liquid cylinder by moving the operating member C up and down several times from the state shown in FIG. When the operating member C is pressed down from this state, first, the stem 12 moves down with the pressing head 13 with respect to the large-diameter cylindrical piston 14 to open the air discharge valve 31, and then the lower end of the vertical outer cylinder 21 of the pressing head 13 has the large diameter. The large-diameter cylindrical piston descends together with the stem 12 in contact with the upper surface of the partition wall portion 14b of the cylindrical piston 14 with the air discharge valve 31 opened.
[0028]
At this time, since the outside air intake valve 27 is closed, the air in the air cylinder 4 is ejected from the nozzle hole 16 through the air ejection path a and the small gap 28. At this time, since the outer peripheral portion of the small gap portion 28 has a negative pressure, the inside of the liquid outflow passage b communicating with the small gap portion also has a negative pressure, and therefore, the liquid in the liquid cylinder 5 passes through the liquid outflow passage b. The liquid sucked into the small gap portion 28 and mixed into the small gap portion is mixed with the jet air and jetted out of the nozzle hole 16 as fog.
[0029]
When the pressing head 13 is released, the air ejection is stopped, so that the negative pressure state in the small gap 28 is eliminated, and the liquid stop valve 32 is closed. Further, the air discharge valve 31 is closed by raising the stem 12 prior to the large-diameter cylindrical piston 14, and then the large-diameter cylindrical piston 14 is also lifted up by the receiving seat 23. Therefore, the outside air intake valve 27 opens to suck outside air into the air cylinder. On the other hand, the liquid in the container A is sucked into the liquid cylinder 5 via the suction pipe 11. At this time, since the movable valve body E maintains the state shown in FIG. 1, the outside air introduction hole h is in an open state, and the outside air is introduced into the outside air introduction hole h with the negative pressure due to the decrease in the liquid in the container. Through the container A.
[0030]
When not in use, the operating member C is pushed down and rotated to engage the upper surface of the rail 36 with the lower surface of the locking ridge 37. At this time, the downward step portion 45 provided on the outer surface of the vertical outer cylinder 21 pushes down the movable valve body E, and pushes the movable valve body E down to a position where the cylindrical seal portion 42 closes the outside air introduction hole h. Therefore, the outside air introduction hole h is always closed when the operating member C is pushed down and locked when not in use. At this time, the tip of the rod 34 fits liquid-tightly into the fitting concave portion 46 on the lower surface of the valve seat of the liquid stop valve 32, thereby achieving sealing performance of this portion. When the rail 36 is disengaged from this state and the operating member is lifted, the movable valve element E is pushed up to a predetermined upper end position by the large-diameter cylindrical piston 14. In the illustrated example, a rib for regulating the ball movement amount of the liquid stop valve is provided so as to protrude from the inner surface of the fitting cylinder fitted to the upper end of the inner surface of the stem.
[0031]
7 and 8 show another embodiment of the present invention. This embodiment shows an example in which the coil spring 22 is interposed outside the liquid cylinder 5 in the embodiment of FIG. Instead of the cylinder member B, to extend the diameter of the cover tube 47 at the bottom of the large-diameter air cylinder 4 includes a cylinder member B ₁ standing upright liquid cylinder 5 of smaller diameter in the cover cylinder 47. The operating member C is urged upward with the coil spring 22 interposed between the bottom of the cover cylinder 47 on the outer periphery of the liquid cylinder 5 and the seat 23 of the stem 12. Accordingly, the coil spring 22, which is preferably made of metal from the viewpoint of performance, can be used without directly contacting the liquid, and a storage liquid that does not like contact with metal can be used. Liquid restrictions are greatly reduced. A lower end of the rod 34 is fitted and fixed to a lower end of the liquid cylinder 5 with a locking rib projecting from the outer periphery. Other configurations are the same as those of the embodiment of FIG.
[0032]
9 and 10 show still another embodiment of the present invention. In this embodiment, in place of the cylinder member B in the embodiment of FIG. A cover cylinder 47 having a bottom and a small diameter is extended, and a slide cylinder 48 having upper and lower ends opening from the bottom wall of the cover cylinder 47 to the inside of the air cylinder 4 is erected. the includes a cylinder member B ₂ which the inner periphery of the stem 12 so vertically slidably fitted. The stem 12 does not include the small-diameter cylindrical piston 17 and the engaging ridge 33, and the suction pipe 11 is fitted to the upper end of the sliding cylinder 48. Further, the coil spring 22 is interposed between the receiving seat 23 and the bottom wall of the cover cylinder 47 so that there is no contact with the liquid. In addition, a fitting projection 49 that fits in the fitting recess 46 in a liquid-tight manner is extended through a support plate above the upper end of the sliding cylinder 48 so that liquid can flow therethrough. Other configurations are the same as those in the embodiment of FIG.
[0033]
Each of the above members is preferably formed mainly of a synthetic resin, and may be formed by using an elastomer, a metal, or the like as necessary.
[0034]
【The invention's effect】
As described above, the manual spray container according to the present invention has the above-described configuration, so that the operating member can be pressed down and locked. At this time, even if the cover cap or the stopper is not present, the air cylinder can be used. The movable valve body closes the outside air introduction hole provided in the above-mentioned structure, thereby preventing inadvertent liquid leakage. Moreover, the movable valve body is pushed up when the operating member shifts to the highest state, shifts to the open state of the outside air introduction hole, and maintains the open state of the outside air introduction hole when the operating member moves up and down for ejecting liquid. During normal use, outside air can be smoothly introduced into the container body, and the movable valve body can automatically shift to a predetermined state when the operating member is moved up and down, so that handling is extremely convenient.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention.
FIG. 2 is an explanatory diagram illustrating a locking mechanism of the push-down head according to the embodiment.
FIG. 3 is an explanatory diagram illustrating a locking mechanism of the push-down head according to the embodiment.
FIG. 4 is an enlarged sectional view of a main part of an injection tube portion of the embodiment.
FIG. 5 is an enlarged sectional view of a main part of an air cylinder portion of the embodiment.
FIG. 6 is a longitudinal sectional view showing a state where the operating member of the embodiment is pushed down and locked.
FIG. 7 is a longitudinal sectional view showing another embodiment of the present invention.
FIG. 8 is a longitudinal sectional view showing a state where the operating member of the embodiment is pushed down and locked.
FIG. 9 is a longitudinal sectional view showing still another embodiment of the present invention.
FIG. 10 is a longitudinal sectional view showing a state where the operating member of the embodiment is pushed down and locked.
[Explanation of symbols]
4 ... air cylinder, 12 ... stem, 13 ... pressing head, 15 ... injection tube,
16: Nozzle hole, a: air ejection path, b: liquid outflow path, h: outside air introduction hole,
A: container body, C: operating member, E: movable valve body

Claims

A large-diameter air cylinder 4 suspended in a container A, a stem 12 is provided through the center of a large-diameter cylindrical piston fitted to the air cylinder, and a pressing head 13 is fitted to the upper end of the stem. A nozzle hole 16 formed in the front of the injection tube, and a pneumatic cylinder provided with an actuating member C provided so as to be vertically movable in an upwardly urged state with the injection tube 15 provided laterally within the pressing head 13. 4 is provided with an air ejection path a communicating with the inside of the injection pipe 15 through the inside of the injection pipe 15, and a liquid outflow path b communicating the inside of the nozzle hole 16 and the inside of the stem 12 via the outer periphery of the injection pipe is provided. Occasionally, the pressure in the liquid outflow path b is reduced by air ejected from the nozzle hole 16 through the air ejection path a, and the liquid in the container is sucked up by the negative pressure, mixed with the ejected air and sprayed. In the manual spray container, The air cylinder 4 is provided with an outside air introduction hole h, and a movable valve body E that closes the outside air introduction hole so as to be openable and closable is provided. When the movable member E is pushed down by the operating member C when the operating member C shifts to the locked state in which the external air introduction hole h is closed, and when the operating member C shifts to the highest state, the large-diameter cylindrical shape is used. A manual spray container configured to be pushed up by the piston to shift to an open state of the outside air introduction hole h, and to maintain the open state of the outside air introduction hole h when the operating member C moves up and down for ejecting liquid. .