JP3810571B2

JP3810571B2 - Liquid product

Info

Publication number: JP3810571B2
Application number: JP02437999A
Authority: JP
Inventors: 祐司郎宮本; 修司岩尾
Original assignee: Lion Corp
Current assignee: Lion Corp
Priority date: 1999-02-01
Filing date: 1999-02-01
Publication date: 2006-08-16
Anticipated expiration: 2019-02-01
Also published as: JP2000226055A

Description

【０００１】
【発明の属する技術分野】
本発明は、内容液を注出するノズルを有すると共に、このノズルの周囲に、計量カップとしても使えるキャップが装着された液剤注出容器に係わり、特にキャップの装着部からの液垂れが防止された液剤注出容器、およびこの液剤注出容器に液剤が充填された液剤製品に関する。
【０００２】
【従来の技術】
容器本体の頂部に内容液注出用のノズルを有すると共に、このノズルの周囲に、計量カップとしても使える着脱自由のキャップが装着された液剤注出容器は、液体薬品、液状食品、液体洗剤、液体漂白剤などの液剤を充填した液剤製品に多く用いられている。これらの液剤製品に用いられる液剤注出容器においては、キャップの装着部からの液垂れが問題となる。すなわち、例えばゆっくりと容器を傾けて計量すると、ノズルの下側となる外壁面に液剤が回り込み、垂れ落ちて容器やキャップを汚してしまうことがある。またキャップを装着した状態で容器を転倒または倒置すると、ノズルから流出した液剤がキャップ内に充満し、正立状態に戻してもノズル部材の筒状壁部とキャップ外壁面の隙間に液剤が溜まり、この状態でキャップを外し計量すると残留していた液剤が垂れてくる、などの問題があった。
【０００３】
これらの問題を解決するために、従来から種々の液剤注出容器が考案されている。その一例を図３に示す。図３においてこの液剤注出容器１００は、容器本体１１０の頂部に、先端が液剤の注ぎ口１２１ａとなるように成形されたノズル１２１を有するノズル部材１２０が固定され、またこのノズル１２１を覆うように計量カップとしても使える有蓋円筒状のキャップ１３０が、ノズル部材１２０に形成された外ネジ部１２４とキャップ１３０に形成された内ネジ部１３２との螺合により着脱自由に装着されている。
【０００４】
ノズル部材１２０は、ノズル１２１の基部から周囲に広がる環状のノズル底部１２２を有し、このノズル底部１２２は、ノズル軸心を挟んでノズルの注ぎ口１２１ａと反対の方向に下降するように傾斜して成形され、この傾斜した下端部に、容器本体１１０内に通じる貫通孔１２３が形成されている。またこのノズル底部１２２の周辺は、前記ノズル１２１との間に環状の空間１２６を隔てて上方に立ち上がり、筒状壁部１２５を形成し、更にその上方に連続して筒状の外ネジ部１２４が形成されている。
一方、キャップ１３０は、その高さ方向中間部の外周にフランジ１３１が形成され、このフランジ１３１に、前記の外ネジ部１２４と螺合する内ネジ部１３２が形成されている。
【０００５】
この液剤注出容器１００は、キャップ１３０を廻して容器から外し、容器本体１１０を傾け、ノズルの注ぎ口１２１ａから内容液をキャップ１３０内に注入して計量し、使用後にキャップ１３０をねじ込んで容器を正立させると、キャップ１３０内に残留した液剤はキャップの外壁面１３３からノズル部材のノズル底部１２２に垂れ落ち、傾斜したノズル底部を伝って貫通孔１２３から容器内部に回収される。注出時に注ぎ口１２１ａからノズル外周に回り込んだ液剤も、同様に容器を正立させるとノズル外周を伝って傾斜したノズル底部１２２に垂れ落ち、貫通孔１２３から容器内部に回収される。更に、容器が転倒したときノズル１２１から流出しキャップ１３０内に充満した液剤も、容器本体を正立させれば貫通孔１２３から容器内部に戻る。
【０００６】
【発明が解決しようとする課題】
しかし前記構成の液剤注出容器においても、容器内の液剤が例えばドレッシングや液体洗剤などのように比較的粘度が高くしかも表面張力が低い場合には、キャップの外壁面１３３とノズル部材の筒状壁部１２５との間の間隙ｐや、その上部に形成されたキャップ１３０とノズル部材の外ネジ部１２４との間の空間ｓに溜まった液剤が、容器を正立しても流下せず、再び容器を傾けて計量するときにキャップの螺合部から液垂れする原因となっていた。
本発明は、上記の課題を解決するためになされたものであって、従ってその目的は、比較的高粘度、低表面張力の液剤を充填した場合であっても、キャップとノズル部材との間隙に液剤が残留することがなく、従ってキャップ装着部からの液剤の漏出が防止された液剤注出容器、およびこの液剤注出容器に液剤が充填された液垂れしない液剤製品を提供することにある。
【０００７】
【課題を解決するための手段】
前記の課題を解決するために本発明は、容器本体または容器本体の頂部に固定されたノズル部材に内容液を注出するノズルを有すると共にこのノズルを離間して覆う有蓋筒状のキャップが着脱自由に装着された液剤注出容器であって、前記の容器本体またはノズル部材が、ノズルの基部から周囲に広がる環状のノズル底部を経て上方に、前記ノズルとの間に環状の空間を隔てて立ち上がる筒状壁部を有し、この環状空間に前記キャップが、その外壁面と前記筒状壁部との間に０．５mm〜２．０mmの範囲内の間隙を形成するように挿入され、かつ前記の筒状壁部または装着されたときにこの筒状壁部と対向する前記キャップの外壁面のいずれかに、少なくとも１本の縦リブが形成され、前記容器本体に粘度（２５℃）が１０cp〜３００cpの範囲内であり、かつ表面張力（２５℃）が２０dyn/cm〜５０dyn/cmの範囲内であり、総量で３重量％〜６０重量％の範囲内の界面活性剤を含む液剤が充填される一方、前記ノズルの先端に液剤の注ぎ口が形成され、前記ノズル底部が、ノズル軸心を挟んで前記の注ぎ口と反対の方向に下降するように傾斜して成形され、この傾斜したノズル底部の下端部に、容器本体内に通じる貫通孔が形成されるとともに、前記キャップの外壁面にフランジが形成され、このフランジの先端部に前記筒状壁部の上端部に形成されたネジ部に螺合するネジ部が形成され、前記キャップのネジ部による前記筒状壁部上端部への螺合により前記キャップが前記筒状壁部の上端部に装着され、該装着状態において前記フランジと前記キャップ外壁面と前記筒状壁部の上端部により上部空間が形成され、該上部空間の下側に前記間隙と縦リブが位置された液剤製品を提供する。
【０００８】
ノズルと筒状壁部との間の環状空間にキャップが挿入され、このキャップの外壁面と筒状壁部との間に０．５mm〜２．０mmの範囲内の間隙が形成され、かつこの筒状壁部に少なくとも１本の縦リブが形成されていると、粘度（２５℃）が１０cp〜３００cpの範囲内であり、かつ表面張力（２５℃）が２０dyn/cm〜５０dyn/cmの範囲内の比較的高粘度〜低表面張力の液剤がこの間隙やその上部の上部空間に入り込んだ場合でも、容器の正立状態ではこれらの間隙や上部空間に液剤が残留することなく、前記の縦リブを伝って速やかにノズル底部に流下することがわかった。従って、この間隙や上部空間に液剤が残留することに起因する螺合部からの液垂れが防止できる。
キャップ外壁面と筒状壁部との間隙が０．５mm未満では、縦リブを設けても液剤をこの間隙から流下させることは困難である。また間隙が２．０mmを越えると、キャップを計量カップとして使用する場合に、同じ容量を計量するためにはキャップが細く深くなり、デザイン上の不都合が生じる。この観点から、前記の間隙は０．７mm〜１．５mmの範囲内とすることが好ましい。
粘度（２５℃）が１０cp〜３００cpの範囲内であり、かつ表面張力（２５℃）が２０dyn/cm〜５０dyn/cmの範囲内である液剤は、図３で説明したような従来の液剤注出容器に充填すると、特にキャップの外壁面１３３と筒状壁部１２５との間隙ｐに入り込んだ場合に流下し難いものであった。この観点から、本発明の液剤注出容器は前記粘度範囲および表面張力範囲の液剤を充填した液剤製品に好適に用いられる。粘度（２５℃）が１０cp未満、表面張力（２５℃）が２０dyn/cm未満の液剤の場合は筒状壁部の縦リブの効果があまり発揮されず、３００cp，５０dyn/cm（２５℃）を越える液剤は、元来前記構造のノズル容器に充填することが不適当である。この観点から、本発明の液剤注出容器は、特に粘度（２５℃）が３０cp〜１５０cpの範囲内の前記液剤を充填するのに適している。
前記において、この液剤は総量で３重量％〜６０重量％の範囲内の界面活性剤を含んでいる。この範囲内の界面活性剤を含む液剤は浸透性が強く、キャップの螺合部から漏出しやすく、漏出するとベトついて手に不快感を与えるばかりでなく容器の印刷を侵す可能性などがあるので、本発明の液剤注出容器を用いて漏出を防止することにより液剤製品の商品価値を向上させることができる。
【０００９】
前記において、縦リブは、対向する前記キャップの外壁面または前記筒状壁部と接触しないように形成されていてもよく、また前記キャップが螺合により装着されるものである場合には、前記縦リブが、対向する前記キャップの外壁面または前記筒状壁部に接触するように形成されていてもよい。
一般に縦リブは対向する前記キャップの外壁面または前記筒状壁部と接触しないように形成すると液剤は円滑に流下する。しかし、キャップが螺合により装着される場合は、前記縦リブが対向する前記キャップの外壁面または前記筒状壁部に接触するように形成されていると、螺合の際に、縦リブが対向するキャップの外壁面または筒状壁部に付着した液剤を掻き落とすようになるのでかえって都合がよい。
【００１０】
前記において、前記筒状壁部に形成された１本の縦リブが前記ノズル部材の貫通孔の上方側に位置され、前記貫通孔が形成された側の、前記筒状壁部より下方位置となるノズル底部に、前記筒状壁部に形成された縦リブの下端から前記貫通孔側に延出して到達する縦リブが延出形成され、前記筒状壁部に形成された１本の縦リブが前記ノズル部材の貫通孔形成側と１８０度反対側であって前記ノズルの注ぎ口形成側に形成されたことが好ましい。
これによって、前記キャップの外壁面と前記筒状壁部との間隙やその上部の上部空間から縦リブを伝って流下した液剤は傾斜したノズル底部を縦リブに沿って流下して前記貫通孔から容器本体内に回収できるようになる。またこの貫通孔がノズルの注ぎ口と反対側に形成されているので、この容器から液剤を注出する際、貫通孔を通って外気が内容液と置換し、液剤を息継ぎすることなくノズルから円滑に注出することができる。
【００１１】
本発明は、前記筒状壁部の周方向において前記貫通孔側に形成された縦リブと対向する位置に前記筒状壁部からの上部から前記ノズル底部まで達する縦リブが形成されるとともに、前記ノズルの外壁に、前記注ぎ口から基部にかけて縦リブが形成され、前記ノズル外壁の縦リブの下端部と、前記ノズル外壁の縦リブに隣接する前記筒状壁部の縦リブの下端部とが、いずれも前記ノズル底部に達して前記ノズル底部側において相互に隣接されたことが好ましい。
前記の縦リブによって、注ぎ口から液剤を注出したのちに容器を正立させたとき、注ぎ口からノズルの外壁に回り込んで付着した液剤が、この縦リブを伝って円滑にノズル底部に向けて流下するようになる。
また、筒状壁部に形成した縦リブによって筒状壁部側に付着した液剤を円滑にノズル底部側に流下できる。従って、ノズル外壁に付着した液剤と筒状壁部に付着した液剤のいずれをもノズル底部側に流下させてノズル底部を介してその底部側の貫通孔から容器本体側に円滑に戻すことができる。即ち、これらの縦リブの作用によって、計量カップとして使用され内部が液剤で濡れたキャップをノズル部材に装着したとき、キャップから垂れ落ちる液剤を円滑に貫通孔に誘導し容器本体側に戻すことができる。
【００１３】
前記の容器本体またはノズル部材は、前記筒状壁部から連続して上方に延びる筒状のネジ部を有し、前記キャップが、その高さ方向中間部の外周にフランジを有し、このフランジに前記ネジ部と螺合するネジ部が形成され、双方のネジ部を螺合することによりキャップが容器本体またはノズル部材に装着されるようにすることが好ましい。
これによれば、キャップと容器本体またはノズル部材との螺合部が、キャップの開口部から離れた位置に形成されることになるので、キャップの着脱や液剤の注出の際に内容液がこの螺合部近辺に付着する機会が減り、螺合部からの液垂れが起こり難くなる。
【００１６】
【発明の実施の形態】
以下、本発明の実施の形態を実施例により図面を用いて説明する。
図１においてこの液剤注出容器１は、プラスチック製の容器本体１０の頂部に、内容液注出用のノズル２１を有するノズル部材２０が固定され、このノズル部材の外ネジ部２４に、前記のノズル２１を離間して覆う有蓋筒状のキャップ３０が、このキャップに形成された内ネジ部３２によって着脱自由に螺合され装着されている。
容器本体１０とノズル部材２０とは、互いのロック歯機構１１によって、逆転不能に螺合され固定されている。
【００１７】
前記のノズル２１は、先端が嘴（くちばし）状に細く成形され、注ぎ口２１ａを形成している。また、ノズル２１の基部２１ｂからは、その周囲に環状のノズル底部２２がなだらかな湾曲部を形成して広がっていて、このノズル底部２２は、ノズル軸心を挟んで前記の注ぎ口２１ａと反対の方向に下降するように傾斜して成形され、この傾斜した下端部に、容器本体１０内に通じる貫通孔２３が形成されている。
【００１８】
前記ノズル底部２２の周辺はなだらかな湾曲部を形成して上方に立ち上がり、筒状壁部２５を形成している。このノズル底部２２の湾曲部は、液剤の流下を円滑にするため、普通はノズル基部２１ｂと筒状壁部２５との間で少なくとも２mm〜３mmの曲率を有するように成形される。そしてこのノズル底部２２は、ノズルの基部２１ｂから周囲に環状に広がっているので、この筒状壁部２５とノズル２１との間には環状の空間（環状空間）２６が形成されている。
また、この筒状壁部２５の上方には、上方に拡径するテーパ部２５ａを経由して同心的に延びる筒状の外ネジ部２４が形成されている。
【００１９】
キャップ３０は、ノズル部材２０に装着されたとき開口部が下向きとなるカップ状本体の外壁面３３の高さ方向中間部にフランジ３４を有し、このフランジの先端に、前記ノズル部材の外ネジ部２４と螺合する筒状の内ネジ部３２が形成され、この内ネジ部３２を外ネジ部２４に螺合することにより、キャップ３０がノズル部材２０に装着され、装着された状態では、キャップ３０の本体は前記の環状空間２６に非接触的に挿入される。従ってこのキャップの外壁面３３と前記筒状壁部２５との間には、間隙Ｐが形成されている。
【００２０】
本発明の液剤注出容器において、この間隙Ｐは０．５mm〜２．０mmの範囲内に設定される。そしてこの間隙Ｐを挟んでキャップの外壁面３３と対向する前記筒状壁部２５には、少なくとも１本の縦リブ２７が形成されている。この実施例の場合は、ノズルの注ぎ口２１ａに対向する側の縦リブ２７（ａ）と、貫通孔２３側の縦リブ２７（ｂ）と、合計２本の縦リブ２７が筒状壁部２５に形成されている。
【００２１】
ノズル２１の外壁には、前記注ぎ口２１ａから基部２１ｂにかけて縦リブ２８が形成されている。また、貫通孔２３が形成された側の、前記筒状壁部２５より下方となるノズル底部２２には、前記筒状壁部２５から貫通孔２３にかけて延びる縦リブ２９が、前記の縦リブ２７（ｂ）に連続して形成されている。
【００２２】
この実施例の液剤注出容器１は、粘度（２５℃）が１００cp、表面張力（２５℃）が３０dyn/cmの液体洗剤が充填され、実施例の液剤製品とされている。
この液剤注出容器１は、キャップ３０を廻して外し、ノズルの注ぎ口２１ａを下側にして容器本体１０を傾けると、ノズル２１から内容液が流出すると共に貫通孔２３から外気が容器本体１０内に導入されるので、注ぎ口２１ａから息継ぎすることなく円滑に内容液が注出できる。注出された液剤はキャップ３０に受けて計量することができる。
【００２３】
キャップ３０内に分取された液剤が他に移されたのち、キャップ３０はノズル部材の外ネジ部２４にねじ込まれる。このとき、キャップ３０の内壁には液剤が付着して残留している。この液剤はキャップ３０の口縁からノズル底部２２に垂れ落ち、ノズル底部２２の傾斜に沿って貫通孔２３に流れ落ち、容器本体１０内に回収される。このとき、ノズル底部２２には縦リブ２９が形成されているので、液剤はこの縦リブ２９を伝って急速にノズル底部２２の斜面を流下し貫通孔２３に誘導される。
【００２４】
キャップ３０内で計量した液剤を他に移すとき、少量の液剤がキャップの口縁から外壁に回り込む。この液剤はキャップ３０をノズル部材２０に装着するとき筒状壁部２５と接触し、前記の間隙Ｐを満たすと共に上方に押し上げられ上部空間Ｓにも溜まる。しかし筒状壁部２５には２本の縦リブ２７（ａ），２７（ｂ）が形成されているので、間隙Ｐおよび上部空間Ｓ内の液剤はこれらの縦リブ２７（ａ），２７（ｂ）を伝って急速にノズル底部２２に流下する。従ってこれらの部分に滞留した液剤が外ネジ部２４と内ネジ部３２との螺合部から外部に漏出することはない。
【００２５】
前記において縦リブ２７は、他の実施例として図２に示すように、キャップの外壁面３３側に形成されていてもよく、またこの縦リブ２７が、キャップをねじ込んだ際に対向することになる筒状壁部２５に接触するように形成されていてもよい。縦リブ２７が対向面と接触するように形成されていると、計量後のキャップ３０をねじ込む際に、縦リブ２７が対向面を擦り降ろすので、この対向面に付着した液剤を掻き落とすようになり、間隙Ｐおよび上部空間Ｓから液剤を更に急速に排除できるようになる。もちろん、図２に示す実施例の場合も、縦リブ２７はキャップの外壁面３３側に２本またはそれ以上、キャップの軸心に対称的に形成されていてもよい。
【００２６】
前記いずれかの実施例において、ノズル２１から液剤を注出するとき注ぎ口２１ａからノズル２１の外壁に回り込んだ液剤は、ノズル２１に形成された縦リブ２８を伝って円滑にノズル底部に向けて流下し、貫通孔２３から容器本体１０内に回収される。
【００２７】
（試験例）
図１の液剤注出容器において、前記の間隙Ｐを０．４mm、１．２mm、１．５mmと変化させ、また前記縦リブ２７の数を０本、１本、２本と変化させたものを試作し、各容器に下記配合の液体洗剤を充填し、得られた液剤製品を倒立してキャップ３０内に液剤を充満させたのち正立に戻し、キャップ内壁および上部空間Ｓから液剤が垂れ落ちるまでの時間（液切れ時間、秒）を測定した。

試験の結果を表１に示す。
【００２８】
【表１】

【００２９】
表１の結果から、間隙Ｐが０．５mm〜２．０mmの範囲内であり、縦リブ２７を１本〜２本有する実施例１および実施例２の試料は、縦リブ２７を有しない試料（比較例１）および縦リブは有するが間隙Ｐが０．５mm未満の試料（比較例２）に比べ、間隙Ｐの液切れが著しく改善され、キャップ螺合部からの液垂れ防止に寄与していることがわかる。
【００３０】
【発明の効果】
本発明の液剤注出容器は、ノズルと筒状壁部との間の環状空間にキャップが挿入され、このキャップの外壁面と筒状壁部との間に０．５mm〜２．０mmの範囲内の間隙が形成され、かつこの筒状壁部に少なくとも１本の縦リブが形成されていると、粘度（２５℃）が１０cp〜３００cpの範囲内であり、かつ表面張力（２５℃）が２０dyn/cm〜５０dyn/cmの範囲内の比較的高粘度〜低表面張力の液剤がこの間隙やその上部の上部空間に入り込んだ場合でも、容器の正立状態ではこれらの間隙やその上部の上部空間に液剤が残留することなく、前記の縦リブを伝って速やかにノズル底部に流下することがわかった。従って、この間隙やその上部の上部空間に液剤が残留することに起因する螺合部からの液垂れが防止できる。
キャップ外壁面と筒状壁部との間隙が０．５mm未満では、縦リブを設けても液剤をこの間隙から流下させることは困難である。また間隙が２．０mmを越えると、キャップを計量カップとして使用する場合に、同じ容量を計量するためにはキャップが細く深くなり、デザイン上の不都合が生じる。この観点から、前記の間隙は０．７mm〜１．５mmの範囲内とすることが好ましい。
粘度（２５℃）が１０cp〜３００cpの範囲内であり、かつ表面張力（２５℃）が２０dyn/cm〜５０dyn/cmの範囲内である液剤は、図３で説明したような従来の液剤注出容器に充填すると、特にキャップの外壁面１３３と筒状壁部１２５との間隙ｐに入り込んだ場合に流下し難いものであった。この観点から、本発明の液剤注出容器は前記粘度範囲および表面張力範囲の液剤を充填した液剤製品に好適に用いられる。粘度（２５℃）が１０cp未満、表面張力（２５℃）が２０dyn/cm未満の液剤の場合は筒状壁部の縦リブの効果があまり発揮されず、３００cp，５０dyn/cm（２５℃）を越える液剤は、元来前記構造のノズル容器に充填することが不適当である。この観点から、本発明の液剤注出容器は、特に粘度（２５℃）が３０cp〜１５０cpの範囲内の前記液剤を充填するのに適している。
前記において、この液剤は総量で３重量％〜６０重量％の範囲内の界面活性剤を含んでいる。この範囲内の界面活性剤を含む液剤は浸透性が強く、キャップの螺合部から漏出しやすく、漏出するとベトついて手に不快感を与えるばかりでなく容器の印刷を侵す可能性などがあるので、本発明の液剤注出容器を用いて漏出を防止することにより液剤製品の商品価値を向上させることができる。
【図面の簡単な説明】
【図１】本発明の一実施例を示す断面図
【図２】本発明の他の一実施例を示す断面図
【図３】従来の液剤注出容器の一例を示す断面図
【符号の説明】
１：液剤注出容器
１０：容器本体
１１：ロック歯機構
２０：ノズル部材
２１：ノズル２１ａ：注ぎ口２１ｂ：基部
２２：ノズル底部
２３：貫通孔
２４：外ネジ部
２５：筒状壁部２５ａ：テーパ部
２６：環状空間
２７，２７（ａ），２７（ｂ）：縦リブ
２８：縦リブ
２９：縦リブ
３０：キャップ
３２：内ネジ部
３３：外壁面
３４：フランジ
Ｐ：間隙
Ｓ：上部空間[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid agent dispensing container having a nozzle for dispensing the content liquid, and a cap that can also be used as a measuring cup around the nozzle, and in particular, dripping from the cap mounting portion is prevented. The present invention relates to a liquid dispensing container and a liquid product in which the liquid dispensing container is filled with the liquid.
[0002]
[Prior art]
A liquid dispensing container equipped with a detachable cap that can also be used as a measuring cup around this nozzle has a liquid dispensing nozzle at the top of the container body, which is a liquid chemical, liquid food, liquid detergent, It is often used for liquid products filled with liquids such as liquid bleach. In the liquid dispensing container used for these liquid products, liquid dripping from the cap mounting part becomes a problem. That is, for example, when the container is slowly tilted and weighed, the liquid agent may wrap around the outer wall surface on the lower side of the nozzle and sag to contaminate the container and the cap. If the container is overturned or turned over with the cap attached, the liquid that has flowed out of the nozzle fills the cap, and the liquid remains in the gap between the cylindrical wall of the nozzle member and the outer wall of the cap even when the cap is returned to the upright state. In this state, when the cap was removed and weighed, there was a problem that the remaining liquid dripped.
[0003]
In order to solve these problems, various liquid agent dispensing containers have been conventionally devised. An example is shown in FIG. In FIG. 3, the liquid dispensing container 100 has a nozzle member 120 having a nozzle 121 formed at the top of the container main body 110 so that the tip thereof becomes a liquid spout 121 a and is fixed to cover the nozzle 121. A lidded cylindrical cap 130 that can also be used as a measuring cup is detachably mounted by screwing an outer screw portion 124 formed on the nozzle member 120 and an inner screw portion 132 formed on the cap 130.
[0004]
The nozzle member 120 has an annular nozzle bottom 122 extending from the base of the nozzle 121 to the periphery, and the nozzle bottom 122 is inclined so as to descend in a direction opposite to the nozzle spout 121a across the nozzle axis. A through hole 123 communicating with the inside of the container main body 110 is formed at the inclined lower end portion. The periphery of the nozzle bottom portion 122 rises upward with an annular space 126 between the nozzle 121 and the nozzle 121 to form a cylindrical wall portion 125, and a cylindrical outer screw portion 124 continuously thereabove. Is formed.
On the other hand, the cap 130 has a flange 131 formed on the outer periphery of the intermediate portion in the height direction. The flange 131 is formed with an inner screw portion 132 that is screwed with the outer screw portion 124.
[0005]
The liquid dispensing container 100 is removed from the container by turning the cap 130, the container body 110 is tilted, the content liquid is injected into the cap 130 from the nozzle spout 121 a, and the cap 130 is screwed into the container after use. The liquid agent remaining in the cap 130 hangs down from the outer wall surface 133 of the cap to the nozzle bottom portion 122 of the nozzle member, and is collected from the through hole 123 to the inside of the container through the inclined nozzle bottom portion. Similarly, when the container is erected, the liquid agent that has flowed from the spout 121a to the outer periphery of the nozzle at the time of pouring drops down to the inclined nozzle bottom 122 along the outer periphery of the nozzle and is collected from the through hole 123 to the inside of the container. Furthermore, the liquid agent that has flowed out of the nozzle 121 and filled in the cap 130 when the container falls down returns to the inside of the container from the through hole 123 when the container body is upright.
[0006]
[Problems to be solved by the invention]
However, even in the liquid dispensing container having the above structure, when the liquid in the container is relatively high in viscosity and has a low surface tension, such as dressing or liquid detergent, the outer wall surface 133 of the cap and the cylindrical shape of the nozzle member are used. The liquid agent accumulated in the gap p between the wall portion 125 and the space s between the cap 130 formed on the wall portion 125 and the outer screw portion 124 of the nozzle member does not flow down even when the container is erected, When the container was tilted again and weighed, it caused dripping from the screwed portion of the cap.
The present invention has been made to solve the above-described problems, and therefore the object of the present invention is to provide a gap between the cap and the nozzle member even when the liquid agent having a relatively high viscosity and low surface tension is filled. Therefore, there is provided a liquid agent dispensing container in which leakage of the liquid agent from the cap mounting portion is prevented, and a liquid agent product that does not drip and is filled with the liquid agent. .
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention has a nozzle with a lid that covers a nozzle body that separates and covers the nozzle from a container body or a nozzle member fixed to the top of the container body. A liquid dispensing container that is freely mounted, wherein the container main body or the nozzle member is spaced upwardly from the base of the nozzle through an annular nozzle bottom that extends around the annular space between the nozzle and the nozzle. A cylindrical wall portion that rises, and the cap is inserted into the annular space so as to form a gap in the range of 0.5 mm to 2.0 mm between the outer wall surface and the cylindrical wall portion; and to one of the outer wall surface of the cap opposite to the cylindrical wall portion when said is a cylindrical wall portion or mounted, at least one longitudinal rib is formed, the viscosity in the container main body (25 ° C.) Is in the range of 10 cp to 300 cp While the surface tension (25 ° C.) is in the range of 20 dyn / cm to 50 dyn / cm, and the liquid agent containing the surfactant in the range of 3 wt% to 60 wt% in total is filled with the nozzle A liquid spout is formed at the tip of the nozzle, and the bottom of the nozzle is formed so as to be inclined in a direction opposite to the spout over the nozzle axis, and is formed at the lower end of the inclined nozzle bottom. a through hole leading to the container body is formed Rutotomoni, flanges are formed on the outer wall surface of the cap, screw screwed into the threaded portion formed on an upper end portion of the tubular wall portion in the distal end portion of the flange And the cap is attached to the upper end of the cylindrical wall by screwing into the upper end of the cylindrical wall by the threaded portion of the cap. In the attached state, the flange and the outer wall surface of the cap By the upper end of the cylindrical wall Provided is a liquid product in which an upper space is formed, and the gaps and vertical ribs are located below the upper space .
[0008]
A cap is inserted into the annular space between the nozzle and the cylindrical wall portion, and a gap in the range of 0.5 mm to 2.0 mm is formed between the outer wall surface of the cap and the cylindrical wall portion. When at least one longitudinal rib is formed on the cylindrical wall, the viscosity (25 ° C.) is in the range of 10 cp to 300 cp, and the surface tension (25 ° C.) is in the range of 20 dyn / cm to 50 dyn / cm. even when relatively high viscosity - low surface tension liquid of the inner has entered into the gap and the upper space of the upper, without liquid remains in the gaps and the upper space in the upright state of the container, the longitudinal It was found that it quickly flowed down the nozzle bottom along the rib. Accordingly, it is possible to prevent liquid dripping from the threaded portion due to the liquid agent remaining in the gap or the upper space.
If the gap between the outer wall surface of the cap and the cylindrical wall portion is less than 0.5 mm, it is difficult to allow the liquid agent to flow down from this gap even if vertical ribs are provided. When the gap exceeds 2.0 mm, when the cap is used as a measuring cup, the cap becomes thin and deep in order to measure the same capacity, which causes inconvenience in design. From this viewpoint, the gap is preferably within a range of 0.7 mm to 1.5 mm.
A liquid agent having a viscosity (25 ° C.) in the range of 10 cp to 300 cp and a surface tension (25 ° C.) in the range of 20 dyn / cm to 50 dyn / cm is a conventional liquid injection as illustrated in FIG. When the container is filled, it is difficult to flow down particularly when it enters the gap p between the outer wall surface 133 of the cap and the cylindrical wall portion 125. From this viewpoint, the liquid dispensing container of the present invention is suitably used for liquid products filled with liquids in the above-mentioned viscosity range and surface tension range. In the case of a liquid agent having a viscosity (25 ° C.) of less than 10 cp and a surface tension (25 ° C.) of less than 20 dyn / cm, the effect of the longitudinal ribs on the cylindrical wall portion is not so great, and 300 cp, 50 dyn / cm (25 ° C.) It is inappropriate to originally fill the nozzle container having the structure described above. From this viewpoint, the liquid agent dispensing container of the present invention is particularly suitable for filling the liquid agent having a viscosity (25 ° C.) in the range of 30 cp to 150 cp.
In the above, this liquid agent contains the surfactant in the range of 3 to 60% by weight in total. Liquids containing surfactants within this range are highly permeable and easily leak from the screwed part of the cap. If leaked, the liquid will stick out and cause discomfort to the hand and may also damage the printing of the container. The commercial value of the liquid product can be improved by preventing leakage using the liquid dispensing container of the present invention.
[0009]
In the above, the vertical rib may be formed so as not to contact the outer wall surface of the cap or the cylindrical wall portion facing each other, and when the cap is attached by screwing, The vertical rib may be formed so as to contact the outer wall surface of the cap or the cylindrical wall portion facing each other.
Generally, when the vertical rib is formed so as not to contact the outer wall surface of the cap or the cylindrical wall portion facing each other, the liquid agent flows smoothly. However, when the cap is attached by screwing, if the vertical rib is formed so as to contact the outer wall surface of the cap or the cylindrical wall portion, the vertical rib is Since the liquid agent adhering to the outer wall surface or the cylindrical wall portion of the facing cap is scraped off, it is convenient.
[0010]
In the above, the prior SL one longitudinal rib which is formed in the cylindrical wall portion is positioned on the upper side of the through hole of the nozzle member, the through holes are formed side, a lower position than the cylindrical wall portion A vertical rib that reaches and extends from the lower end of the vertical rib formed on the cylindrical wall portion to the through hole side is formed at the bottom of the nozzle to be, and one nozzle formed on the cylindrical wall portion is formed. It is preferable that the vertical rib is formed 180 degrees opposite to the through hole forming side of the nozzle member and on the spout forming side of the nozzle .
As a result, the liquid that has flowed down along the vertical rib from the gap between the outer wall surface of the cap and the cylindrical wall portion or the upper space above the cap flows down the inclined nozzle bottom along the vertical rib from the through hole. It can be collected in the container body. In addition, since this through hole is formed on the opposite side of the nozzle spout, when the liquid agent is poured out from this container, the outside air is replaced with the content liquid through the through hole, and the liquid agent is not breathed from the nozzle without breathing. It can be poured out smoothly.
[0011]
In the present invention, a vertical rib reaching from the upper part from the cylindrical wall part to the nozzle bottom is formed at a position facing the vertical rib formed on the through-hole side in the circumferential direction of the cylindrical wall part, A vertical rib is formed on the outer wall of the nozzle from the spout to the base, a lower end portion of the vertical rib of the nozzle outer wall, and a lower end portion of the vertical rib of the cylindrical wall portion adjacent to the vertical rib of the nozzle outer wall; However, it is preferable that both of them reach the nozzle bottom and are adjacent to each other on the nozzle bottom side.
Therefore it said longitudinal ribs, when allowed to erect the container after the liquid from the spout issued Note, liquid adhering goes around from the spout to the outer wall of the nozzle, smoothly nozzle bottom along the vertical ribs It begins to flow down toward.
Moreover, the liquid agent adhering to the cylindrical wall part side can be smoothly flowed down to the nozzle bottom part side by the vertical rib formed in the cylindrical wall part. Therefore, both the liquid agent adhering to the outer wall of the nozzle and the liquid agent adhering to the cylindrical wall portion can be caused to flow down to the nozzle bottom portion side and smoothly return to the container body side from the through hole on the bottom portion side via the nozzle bottom portion. . That is, by the action of these vertical ribs, when a cap used as a measuring cup and wetted with a liquid agent inside is attached to the nozzle member, the liquid agent dripping from the cap can be smoothly guided to the through hole and returned to the container body side. it can.
[0013]
The container body or the nozzle member has a cylindrical screw portion that extends continuously upward from the cylindrical wall portion, and the cap has a flange on the outer periphery of the intermediate portion in the height direction. It is preferable that a screw part to be screwed with the screw part is formed, and the cap is attached to the container body or the nozzle member by screwing both the screw parts.
According to this, since the screwed portion between the cap and the container body or the nozzle member is formed at a position away from the opening of the cap, the content liquid is removed when the cap is attached or detached or the liquid agent is poured out. Opportunities to adhere to the vicinity of the screwing portion are reduced, and liquid dripping from the screwing portion is less likely to occur.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
In FIG. 1, the liquid dispensing container 1 has a nozzle member 20 having a content liquid dispensing nozzle 21 fixed to the top of a plastic container body 10, and the external thread 24 of the nozzle member A covered cylindrical cap 30 that covers and separates the nozzle 21 is detachably screwed and attached by an inner screw portion 32 formed on the cap.
The container body 10 and the nozzle member 20 are screwed together and fixed by the lock tooth mechanism 11 so as not to be able to reversely rotate.
[0017]
The tip of the nozzle 21 is thinly shaped like a beak and forms a spout 21a. Further, from the base 21b of the nozzle 21, an annular nozzle bottom portion 22 is formed to form a gentle curved portion around the nozzle 21, and the nozzle bottom portion 22 is opposite to the spout 21a with the nozzle axis interposed therebetween. The through hole 23 is formed at the inclined lower end portion and communicates with the container body 10.
[0018]
The periphery of the nozzle bottom portion 22 forms a gently curved portion and rises upward to form a cylindrical wall portion 25. The curved portion of the nozzle bottom portion 22 is usually formed to have a curvature of at least 2 mm to 3 mm between the nozzle base portion 21b and the cylindrical wall portion 25 in order to facilitate the flow of the liquid agent. Since the nozzle bottom portion 22 extends annularly from the nozzle base portion 21 b to the periphery, an annular space (annular space) 26 is formed between the cylindrical wall portion 25 and the nozzle 21.
In addition, a cylindrical outer screw portion 24 that extends concentrically via a tapered portion 25 a that expands upward is formed above the cylindrical wall portion 25.
[0019]
The cap 30 has a flange 34 at an intermediate portion in the height direction of the outer wall surface 33 of the cup-shaped main body with the opening facing downward when mounted on the nozzle member 20, and an external screw of the nozzle member is provided at the tip of the flange. A cylindrical inner screw portion 32 that is screwed to the portion 24 is formed, and the cap 30 is attached to the nozzle member 20 by screwing the inner screw portion 32 to the outer screw portion 24. The main body of the cap 30 is inserted into the annular space 26 in a non-contact manner. Therefore, a gap P is formed between the outer wall surface 33 of the cap and the cylindrical wall portion 25.
[0020]
In the liquid agent dispensing container of the present invention, the gap P is set within a range of 0.5 mm to 2.0 mm. At least one vertical rib 27 is formed on the cylindrical wall portion 25 facing the outer wall surface 33 of the cap across the gap P. In the case of this embodiment, the vertical rib 27 (a) on the side facing the spout 21a of the nozzle, the vertical rib 27 (b) on the through hole 23 side, and a total of two vertical ribs 27 are the cylindrical wall portion. 25.
[0021]
A vertical rib 28 is formed on the outer wall of the nozzle 21 from the spout 21a to the base 21b. Further, a vertical rib 29 extending from the cylindrical wall portion 25 to the through hole 23 is provided on the nozzle bottom portion 22 below the cylindrical wall portion 25 on the side where the through hole 23 is formed. It is formed continuously from (b).
[0022]
The liquid dispensing container 1 of this example is filled with a liquid detergent having a viscosity (25 ° C.) of 100 cp and a surface tension (25 ° C.) of 30 dyn / cm, thereby forming a liquid product of the example.
The liquid dispensing container 1 is removed by turning the cap 30, and when the container body 10 is tilted with the nozzle spout 21 a facing downward, the content liquid flows out from the nozzle 21 and the outside air flows from the through hole 23. Since it is introduced into the inside, the content liquid can be smoothly poured out without breathing from the spout 21a. The dispensed liquid can be received by the cap 30 and measured.
[0023]
After the liquid agent dispensed in the cap 30 is transferred to another, the cap 30 is screwed into the external thread portion 24 of the nozzle member. At this time, the liquid agent adheres and remains on the inner wall of the cap 30. This liquid agent drips from the lip of the cap 30 to the nozzle bottom 22, flows down to the through hole 23 along the inclination of the nozzle bottom 22, and is collected in the container body 10. At this time, since the vertical rib 29 is formed on the nozzle bottom portion 22, the liquid agent rapidly flows down the inclined surface of the nozzle bottom portion 22 along the vertical rib 29 and is guided to the through hole 23.
[0024]
When the liquid agent weighed in the cap 30 is transferred to another, a small amount of the liquid agent goes around from the mouth edge of the cap to the outer wall. When the cap 30 is attached to the nozzle member 20, the liquid agent comes into contact with the cylindrical wall portion 25, fills the gap P, and is pushed upward to accumulate in the upper space S. However, since two vertical ribs 27 (a) and 27 (b) are formed in the cylindrical wall portion 25, the liquid agent in the gap P and the upper space S is used for the vertical ribs 27 (a) and 27 ( B) quickly flows down to the nozzle bottom 22. Therefore, the liquid agent staying in these portions does not leak out from the screwed portion between the outer screw portion 24 and the inner screw portion 32.
[0025]
As shown in FIG. 2, the vertical rib 27 may be formed on the outer wall surface 33 side of the cap, and the vertical rib 27 faces when the cap is screwed. It may be formed so as to come into contact with the cylindrical wall portion 25. If the vertical ribs 27 are formed so as to contact the opposing surface, the vertical ribs 27 scrape down the opposing surface when screwing the cap 30 after weighing, so that the liquid agent adhering to the opposing surface is scraped off. Thus, the liquid agent can be more rapidly removed from the gap P and the upper space S. Of course, in the embodiment shown in FIG. 2 as well, two or more vertical ribs 27 may be formed on the side of the outer wall surface 33 of the cap and symmetrically about the axis of the cap.
[0026]
In any of the above-described embodiments, when the liquid agent is poured out from the nozzle 21, the liquid agent that has entered the outer wall of the nozzle 21 from the spout 21 a is smoothly directed to the bottom of the nozzle through the vertical ribs 28 formed in the nozzle 21. And is collected into the container body 10 from the through hole 23.
[0027]
(Test example)
In the liquid dispensing container shown in FIG. 1, the gap P is changed to 0.4 mm, 1.2 mm, and 1.5 mm, and the number of the vertical ribs 27 is changed to 0, 1, and 2. Each container is filled with a liquid detergent of the following composition, the obtained liquid product is inverted, and the cap 30 is filled with the liquid agent, and then returned to the upright position, and the liquid dripping from the cap inner wall and the upper space S. The time until dropping (liquid running time, seconds) was measured.

The test results are shown in Table 1.
[0028]
[Table 1]

[0029]
From the results in Table 1, the samples of Examples 1 and 2 having the gap P in the range of 0.5 mm to 2.0 mm and having one or two vertical ribs 27 are samples having no vertical ribs 27. Compared with (Comparative Example 1) and a sample having a longitudinal rib but a gap P of less than 0.5 mm (Comparative Example 2), the liquid drainage of the gap P is remarkably improved and contributes to prevention of dripping from the cap screwing portion. You can see that
[0030]
【The invention's effect】
In the liquid dispensing container of the present invention, a cap is inserted into the annular space between the nozzle and the cylindrical wall portion, and the range between 0.5 mm and 2.0 mm is provided between the outer wall surface of the cap and the cylindrical wall portion. When the inner gap is formed and at least one vertical rib is formed on the cylindrical wall portion, the viscosity (25 ° C.) is in the range of 10 cp to 300 cp, and the surface tension (25 ° C.) is 20dyn / cm~50dyn / cm relatively high viscosity - in the range of low surface tension liquid even if having entered into the gap and the upper space of the upper, in the upright state of the container the gaps and the top of the upper It has been found that the liquid agent does not remain in the space, and flows down to the nozzle bottom immediately through the vertical rib. Accordingly, it is possible to prevent liquid dripping from the threaded portion due to the liquid agent remaining in the gap or the upper space above the gap.
If the gap between the outer wall surface of the cap and the cylindrical wall portion is less than 0.5 mm, it is difficult to allow the liquid agent to flow down from this gap even if vertical ribs are provided. When the gap exceeds 2.0 mm, when the cap is used as a measuring cup, the cap becomes thin and deep in order to measure the same capacity, which causes inconvenience in design. From this viewpoint, the gap is preferably within a range of 0.7 mm to 1.5 mm.
A liquid agent having a viscosity (25 ° C.) in the range of 10 cp to 300 cp and a surface tension (25 ° C.) in the range of 20 dyn / cm to 50 dyn / cm is a conventional liquid injection as illustrated in FIG. When the container is filled, it is difficult to flow down particularly when it enters the gap p between the outer wall surface 133 of the cap and the cylindrical wall portion 125. From this viewpoint, the liquid dispensing container of the present invention is suitably used for liquid products filled with liquids in the above-mentioned viscosity range and surface tension range. In the case of a liquid agent having a viscosity (25 ° C.) of less than 10 cp and a surface tension (25 ° C.) of less than 20 dyn / cm, the effect of the longitudinal ribs on the cylindrical wall portion is not so great, and 300 cp, 50 dyn / cm (25 ° C.) It is inappropriate to originally fill the nozzle container having the structure described above. From this viewpoint, the liquid agent dispensing container of the present invention is particularly suitable for filling the liquid agent having a viscosity (25 ° C.) in the range of 30 cp to 150 cp.
In the above, this liquid agent contains the surfactant in the range of 3 to 60% by weight in total. Liquids containing surfactants within this range are highly permeable and easily leak from the screwed part of the cap. If leaked, the liquid will stick out and cause discomfort to the hand and may also damage the printing of the container. The commercial value of the liquid product can be improved by preventing leakage using the liquid dispensing container of the present invention.
[Brief description of the drawings]
FIG. 1 is a sectional view showing an embodiment of the present invention. FIG. 2 is a sectional view showing another embodiment of the present invention. FIG. 3 is a sectional view showing an example of a conventional liquid dispensing container. ]
1: Liquid dispensing container 10: Container body 11: Lock tooth mechanism 20: Nozzle member 21: Nozzle 21a: Spout 21b: Base 22: Nozzle bottom 23: Through hole 24: External thread 25: Cylindrical wall 25a: Tapered portion 26: annular space 27, 27 (a), 27 (b): vertical rib 28: vertical rib 29: vertical rib 30: cap 32: inner threaded portion 33: outer wall surface 34: flange P: gap S: upper space

Claims

A liquid dispensing container having a nozzle for pouring the content liquid in a container body or a nozzle member fixed to the top of the container body, and a lidded cylindrical cap that covers and separates the nozzle. The container body or the nozzle member has a cylindrical wall portion that rises through an annular nozzle bottom extending from the base of the nozzle to the periphery and rises with an annular space between the nozzle and the annular space. When the cap is inserted into the outer wall surface and the cylindrical wall portion so as to form a gap in the range of 0.5 mm to 2.0 mm, and the cylindrical wall portion or the cap is mounted. At least one vertical rib is formed on any one of the outer wall surfaces of the cap facing the cylindrical wall portion ,
The container body has a viscosity (25 ° C.) in the range of 10 cp to 300 cp and a surface tension (25 ° C.) in the range of 20 dyn / cm to 50 dyn / cm, and the total amount is 3 wt% to 60 wt%. While filled with a liquid containing a surfactant in the range,
A liquid spout is formed at the tip of the nozzle, and the nozzle bottom is formed to be inclined so as to descend in a direction opposite to the spout across the nozzle axis, and the lower end of the inclined nozzle bottom in part, Rutotomoni through hole communicating with the container body is formed,
A flange is formed on the outer wall surface of the cap, and a screw portion that is screwed to a screw portion formed at an upper end portion of the cylindrical wall portion is formed at a front end portion of the flange, and the cylindrical shape by the screw portion of the cap is formed. The cap is attached to the upper end portion of the cylindrical wall portion by screwing to the upper end portion of the wall portion, and in the attached state, an upper space is formed by the flange, the outer wall surface of the cap, and the upper end portion of the cylindrical wall portion. The liquid product , wherein the gap and the vertical rib are located below the upper space .

Nozzle one longitudinal rib which is formed prior Symbol cylindrical wall portion is positioned on the upper side of the through hole of the nozzle member, the through holes are formed side, which is a lower position than the cylindrical wall portion A vertical rib that extends from the lower end of the vertical rib formed on the cylindrical wall portion to reach the through hole side is formed at the bottom, and one vertical rib formed on the cylindrical wall portion is formed. The liquid product according to claim 1, wherein the liquid product is formed 180 degrees opposite to a through hole forming side of the nozzle member and on a spout forming side of the nozzle .

In the circumferential direction of the cylindrical wall portion, a vertical rib reaching from the upper portion from the cylindrical wall portion to the nozzle bottom is formed at a position facing the vertical rib formed on the through hole side, and the outer wall of the nozzle In addition, a vertical rib is formed from the spout to the base, and the lower end portion of the vertical rib of the nozzle outer wall and the lower end portion of the vertical rib of the cylindrical wall portion adjacent to the vertical rib of the nozzle outer wall are both The liquid medicine product according to claim 2, wherein the liquid medicine product reaches the nozzle bottom and is adjacent to each other on the nozzle bottom side.

The liquid product according to any one of claims 1 to 3, wherein the vertical rib is formed so as not to contact an outer wall surface of the cap or the cylindrical wall portion facing each other.

The cap is attached by screwing, and the vertical rib is formed so as to come into contact with an outer wall surface of the cap or the cylindrical wall portion facing each other. A liquid product according to any one of the above.

The container body or the nozzle member has a cylindrical thread portion extending continuously upward from the cylindrical wall portion, and the cap has a flange on the outer periphery of the intermediate portion in the height direction. 6. A screw part to be screwed with the screw part is formed, and the cap is attached to the container main body or the nozzle member by screwing both the screw parts. Liquid product described in 1.