JP2004232394A - Chemical delivery container - Google Patents

Chemical delivery container Download PDF

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Publication number
JP2004232394A
JP2004232394A JP2003024357A JP2003024357A JP2004232394A JP 2004232394 A JP2004232394 A JP 2004232394A JP 2003024357 A JP2003024357 A JP 2003024357A JP 2003024357 A JP2003024357 A JP 2003024357A JP 2004232394 A JP2004232394 A JP 2004232394A
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Japan
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chemical
chemical solution
tank
liquid
chemical liquid
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JP2003024357A
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JP4557125B2 (en
Inventor
Hozumi Hirahara
穂積 平原
Katsumi Saegusa
克己 三枝
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Kao Corp
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Kao Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a chemical deliver container, placed in a hand washing part of a low tank with a basin of a flush toilet for supplying chemical to the inside of a low tank, for overcoming the disadvantage that diluted liquid having a low washing effect remains in the chemical tank because the chemical is not discharged due to excessive negative pressure in the chemical tank even in any use environment. <P>SOLUTION: This chemical delivery container 100A is composed of: a chemical tank 1 storing chemical; and a chemical discharge nozzle 4 provided in the lower part of the chemical tank 1. The chemical discharge nozzle 4 is provided with a discharge hole 5 holding chemical by surface tension. A pressure regulating part 10 formd of an air permeable member 11 is provided in a region where a head space HS is formed in the chemical tank 1. Alternatively, the pressure regulating part 10 is formed of recovery deforming member. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、水洗トイレの手洗い付きロータンクの手洗い部に載置し、手洗い部の上方のカランから給水される水に薬液を混合するのに適した薬液吐出容器に関する。
【0002】
【従来の技術】
水洗トイレの手洗い付きロータンクの手洗い部に載置し、手洗い部の上方のカランから供給される水に薬液(芳香剤、洗浄剤、殺菌剤等)を混合するために用いる薬液吐出具として、特許文献1に記載されているオンタンク型薬液剤供給装置が知られている。この薬液剤供給装置は、薬液を収容する容器に、細孔、細溝等からなる微細輸送路構造を有する液体供給栓を挿入し、液体供給栓を通して漏洩した薬液を貯留槽に貯留し、水洗トイレの水をフラッシュさせることにより手洗水が手洗い部を流れる際に、その水で薬液を洗い流し、ロータンクに薬液が流入するようにしたものである。
【0003】
【特許文献1】特開2002−146879号公報
【0004】
【発明が解決しようとする課題】
しかしながら、上述の薬液吐出具は、液体供給栓に形成した細孔、細溝等の僅かな隙間から薬液を漏洩させるため、その成型時のバラツキ等により漏洩量が大きく異なり、水洗トイレの水をフラッシュしない場合でも薬液が漏洩し、短期間で薬液が全て漏出してしまう場合がある。
【0005】
これに対し、より単純な機構の薬液吐出具100xとしては、図6(a)に示すように、薬液Aを収容する薬液タンク1と薬液タンク1の底部開口部2に取り付けたキャップ3からなり、キャップ3に薬液吐出ノズル4と足6を設けたものが考えられる。薬液吐出ノズル4の先端には吐出孔5を開口し、そこに薬液Aが、表面張力と薬液タンク1内が弱い負圧状態になることにより保持されるようにする。
【0006】
この薬液吐出具100xを、ロータンクの手洗い部20の給水口21上に載置し、水洗トイレの水をフラッシュさせることにより、カランから手洗い部20に矢印のように水Wが供給されると、その水Wは薬液Aを保持した薬液吐出ノズル4を洗うようにしてロータンク内に流下する(図6(b))。したがって、この薬液吐出具100xによれば、単純な機構で、カランからの給水の度に薬液Aをロータンク内に混入させることが可能となる。
【0007】
薬液タンク1内は、ロータンク内へ供給された薬液Aの量に応じて負圧になるが、薬液吐出ノズル4の吐出孔5に付着していた薬液の希釈液、水又は空気がその吐出孔5から直ちに薬液タンク1内に入るので、薬液タンク1内は弱い負圧状態に戻る。以降、カランから給水される度にこの作用が繰り返され、薬液タンク1内には薬液の希釈液、水又は空気が置換していく。
【0008】
ここで、水Wの水温がトイレの室温よりも十分に低い場合には、カランからの給水により薬液タンク1内のヘッドスペースHSの空気が冷やされ、カランからの給水が止まると徐々に室温に戻り、この間にヘッドスペースHSの空気が膨張し、これによっても薬液Aが吐出され、薬液タンク1内の液量は確実に減っていくことになる。
【0009】
反対に水Wの水温がトイレの室温よりも高い場合には、カランからの給水時に薬液タンク1内のヘッドスペースHSが温められ、ヘッドスペースHSの空気が膨張し、薬液Aが吐出される。この薬液Aの吐出時において、薬液タンク1内は温められて加圧状態になっているため、薬液タンク1内に置換により混入していく水Wの量は少ない。したがって、使用を重ねるにつれて、薬液タンク1内の液量は減っていくことになる。
【0010】
しかしながら、この薬液吐出具100xを使用するにあたり、トイレの室温よりも水温が極端に低い場合、カランからの給水により薬液タンク1内のヘッドスペースHSの空気が過剰に冷やされ、薬液タンク1内が過陰圧となる。そのため、図7に示すように、薬液Aが吐出孔5の奥に凹み、フラッシュにより手洗い水を流しても薬液Aをロータンクに混入させることができず、さらに、この過陰圧により吐出孔5から手洗い水Wが薬液タンク1内に入っていくので、使用を重ねても薬液タンク1内の液量はあまり減らず、薬液タンク1内には洗浄効果の低い希釈液が残る。したがって、見かけ上、薬液タンク1内には薬液Aが入っているにもかかわらず、十分な薬効を得られないという問題が生じる。
【0011】
これに対し、本発明は、水洗トイレの手洗い付きロータンクの手洗い部に載置してロータンク内に薬液を供給する薬液吐出具に関し、トイレの室温と水温は薬液吐出具の設置場所や季節等により変動するところ、どのような使用環境下においても、薬液タンク内が過陰圧になることにより薬液が吐出されず、薬液タンク内に洗浄効果の低い希釈液が残るという不具合を無くすことを目的とする。
【0012】
【課題を解決するための手段】
本発明者は、薬液タンクに空気透過性部材又は復元性の変形部材からなる圧力調整部を設け、薬液タンクの過陰圧を解消することにより上述の目的を達成できることを見出した。
【0013】
即ち、本発明は、薬液を収容する薬液タンク、及び薬液タンクの下方に設けられた薬液吐出ノズルからなり、薬液吐出ノズルに、表面張力により薬液を保持することのできる吐出孔が開口している薬液吐出容器であって、薬液タンクにおいてヘッドスペースが形成される部位に、空気透過性部材からなる圧力調整部が設けられている薬液吐出容器を提供する。
【0014】
また、薬液を収容する薬液タンク、及び薬液タンクの下方に設けられた薬液吐出ノズルからなり、薬液吐出ノズルに、表面張力により薬液を保持することのできる吐出孔が開口している薬液吐出容器であって、薬液タンクにおいてヘッドスペースが形成される部位に復元性の変形部材からなる圧力調整部が設けられている薬液吐出容器を提供する。
【0015】
【発明の実施の形態】
以下、図面を参照しつつ、本発明を詳細に説明する。なお、各図中、同一符号は同一又は同等の構成要素を表している。
【0016】
図1は、本発明の一態様の薬液吐出具100Aの斜視図(a)と、その使用状態の断面図(b)である。
【0017】
この薬液吐出具100Aは、トイレ用芳香剤、洗浄剤、殺菌剤等を含有する薬液Aを収容する薬液タンク1と、薬液タンク1の底部開口部2に取り付けられたキャップ3からなっている。キャップ3には薬液吐出ノズル4と足6が該キャップ3に一体的に設けられ、薬液吐出ノズル4の先端に開口した吐出孔5には、薬液Aが表面張力により保持される。また、ヘッドスペースHSを形成する薬液タンク1の頂部の壁面には、空気透過性部材11からなる圧力調整部10が設けられている。
【0018】
圧力調整部10は、薬液タンク1内の過度の圧力変動を徐々に緩和するものであり、これを形成する空気透過性部材11としては、空気透過性フィルム、空気透過性セラミックス等を使用することができる。
【0019】
空気透過性部材11の好ましい空気透過率は、その厚さ、面積、薬液Aの粘度、吐出孔5の口径等に応じて定まり、例えば、薬液Aの粘度(25℃)が1〜5000mPa・s、吐出孔5の口径が1〜5mmである場合、空気透過性部材11は、空気透過率(25℃)1×10−9〜5000×10−9cm・cm/cm・sec・cmHg、厚さ0.1〜2mm、面積0.1〜30cmとすることができる。このような空気透過性部材11は、より具体的には、シリコーンゴム(ポリジメチルシロキサン:空気透過率500×10−9cm・cm/cm・sec・cmHg)、天然ゴム(空気透過率8.5×10−9cm・cm/cm・sec・cmHg)等から形成することができる。
【0020】
特に、図2に示す薬液吐出具100Bのように、空気透過性部材11としてシリコーンゴム、天然ゴム等の弾性部材を使用すると、薬液タンク1内が過陰圧になった場合に、空気透過性部材11が薬液タンク1の内側に凹むように変形し、これによっても薬液タンク1内の圧力変動が緩和されるので好ましい。
【0021】
なお、圧力変動後に薬液タンク1内を常圧に戻すために、樹脂成型した薬液タンクの壁面に口径0.1mm程度のピンホールを一つあけただけでも、当初3カ月で消費される予定の薬液が2〜3日程度で消費されてしまうため、空気透過性部材11の空気透過性をピンホールの形成により得ることは好ましくない。
【0022】
また、空気透過性部材11からなる圧力調整部10の形成位置は、薬液タンク1においてヘッドスペースHSが形成される部位とし、好ましくは、薬液Aと接触しない部位とするが、必ずしも図1のように薬液タンク1の頂部に形成しなくてもよい。
【0023】
本発明において、薬液Aとしては、芳香剤、洗浄剤、殺菌剤等を含有する薬液を、粘度(25℃)を1〜5000mPa・s、好ましくは1〜300mPa・sに調整したものを使用し、薬液Aの吐出孔5の孔径は1〜5mmとすることが好ましい。薬液Aの粘度が5000mPa・sを超えるか、又は吐出孔5の孔径が1mmよりも狭いと、薬液タンク1から吐出孔5にまで薬液Aが導出されにくくなる。反対に薬液Aの粘度が1mPa・sよりも低いか、又は吐出孔5の孔径が5mmよりも広いと、吐出孔5から薬液Aが過度に漏出し易くなる。
【0024】
この薬液吐出具100Aは、図6に示した薬液吐出具100xと同様に使用される。即ち、薬液Aが薬液タンク1に収容されている状態において、薬液吐出具100Aを水洗トイレの手洗い付きロータンクの手洗い部20の給水口21上に載置する(図1(b))。この場合、薬液吐出ノズル4を給水口21に挿入する。なお、ロータンクの給水口21上にカランが設けられ、薬液タンク1の上方から水が供給される場合について、以下に説明するが、ロータンクの給水口21上にはカランがなく、したがって、ロータンクの給水口21に薬液吐出ノズル4を挿入した場合に、薬液タンク1の側方のカランから水が供給される場合でも、この薬液吐出具100Aは使用することができる。
【0025】
薬液吐出具100Aを手洗い部20に載置後、水洗トイレの水がフラッシュされ、カランから水Wが供給されると、その水Wは薬液Aを保持した薬液吐出ノズル4を洗うようにしてロータンク内に流下する図1(b)。したがって、吐出孔5に保持されていた薬液Aが水Wでさらわれ、ロータンク内に混入することとなる。
【0026】
カランからの給水が止まると吐出孔5に保持されている薬液Aをさらう水の流れがなくなり、ロータンク内への薬液Aの供給も止まる。薬液タンク1内は、ロータンク内に供給された薬液Aの量に応じて負圧になるが、吐出孔5に付着していた薬剤の希釈液、水又は空気が吐出孔5から直ちに薬液タンク1内に入るので、薬液タンク1内は弱い負圧状態に戻り、カランからの給水前と同様に吐出孔5には薬液Aが保持される。
【0027】
以降、カランから給水される度にこの作用が繰り返され、薬液Aがロータンク内に混入する。ここで、トイレの室温よりも水温が極端に低く、カランからの給水により薬液タンク1内のヘッドスペースHSの空気が過剰に冷やされ、薬液タンク1内が過陰圧となった場合でも、図1(b)に示すように、空気透過性部材11からなる圧力調整部10を通して空気が薬液タンク1内に入るので、薬液タンク1内は徐々に弱い負圧状態に戻る。あるいは、圧力調整部10を、弾性を有する空気透過性部材11から形成した場合には、図2に示すように、圧力調整部10が変形することによっても薬液タンク1内の過陰圧が緩和される。そのため、ヘッドスペースHSの空気が冷やされた状態から室温に戻るにつれて膨張することにより、薬液Aが吐出され、薬液タンク1内の液量は確実に減っていく。したがって、この薬液吐出具100Aによれば、フラッシュを重ねても、薬液タンク1内の液量が減らず、洗浄効果の低い希釈液が残るという問題を解消することができる。
【0028】
また、この薬液吐出具100Aは極めて構成が簡易であり、構成部品の点数が少ない。薬液タンク1や、薬液吐出ノズル4と一体になっているキャップ3は、それぞれプラスチック成型により容易に製造することができる。したがって、この薬液吐出具100Aはローコストに得ることができる。また、カランからの給水により確実に薬液Aをロータンク内に混入させることができ、その際に薬液Aが手洗い部20に広がることもないので、手洗い部20が薬液Aで汚れることもない。
【0029】
図3は、本発明の異なる態様の薬液吐出具100Cの斜視図(a)、その使用状態の断面図(b)、及び使用状態において薬液タンクが過陰圧である場合の断面図(c)である。
【0030】
この薬液吐出具100Cは、前述の薬液吐出具100Aにおいて、圧力調整部10を、空気透過性部材11に代えて、蛇腹構造を有する変形部材12から形成したものである。この変形部材12は、薬液タンク1内が1kPa程度の陰圧になることにより図3(c)のように縮んで容積が0.1〜3mL減少し、陰圧が緩和されることにより元の形状に復元するものである。変形部材12の変形量が大きすぎると負圧になりにくいので薬液Aが過剰に吐出し、小さすぎると負圧が解消されないので薬液Aが吐出され難くなるため好ましくない。
【0031】
また、この変形部材12は、前述の空気透過性部材11のような空気透過性をもたない樹脂成型品から形成されている。
【0032】
この薬液吐出具100Cによれば、トイレの室温よりも水温が極端に低く、カランからの給水により薬液タンク1内のヘッドスペースHSの空気が過剰に冷やされた場合に、変形部材12が縮むので薬液タンク1内が過陰圧になることを防止できる。したがって、薬液Aが吐出孔5の奥に凹み、フラッシュにより手洗い水を流しても薬液Aをロータンクに混入させることができないという問題を解消でき、フラッシュを重ねても、薬液タンク1内の液量が減らず、洗浄効果の低い希釈液が残るという問題を解消することができる。
【0033】
本発明において、薬液タンク1に復元性の変形部材12からなる圧力調整部を設ける場合に、変形部材12は蛇腹構造を有するものに限らない。例えば、板状のブチルゴム、天然ゴム等の弾性材料を、前述の図1の空気透過性部材11に代えて設けてもよい。
【0034】
また、薬液タンク1において変形部材12を設ける位置は、薬液Aの自重がかからない位置とする。薬液タンク1の底面のように、薬液Aの自重がかかる位置に変形部材12を設けると、カランからの給水により薬液タンク1内のヘッドスペースHSの空気が過剰に冷やされ、変形部材12が一旦縮むと、その後復元しないので、再度、ヘッドスペースHSが過剰に冷やされた場合に対応することができない。
【0035】
本発明は、空気透過性部材からなる圧力調整部あるいは復元性の変形部材からなる圧力調整部を薬液タンクに設ける限り、種々の態様をとることができる。例えば、図4に示す薬液吐出具100Dのように、空気透過性部材11からなる圧力調整部10上に天板7を設けてもよい。カランの水が薬液吐出具100Aの真上から供給される場合に、天板7を設けることにより、水が薬液タンク1に直接的に当たることを防止し、それにより、薬液タンク1からの薬液Aの供給量を、水温あるいは気温の変動に対して安定化させることができるので好ましい。また、図4(b)に示すように、カランから供給された水Wは天板10Aにそって放射状に流れ、美しい水のベールの外観を呈するので、薬液吐出具の使用感を向上させる点からも好ましい。
【0036】
【実施例】
実施例1、比較例1
図1の薬液吐出具100A(実施例1)と図6の薬液吐出具100x(比較例1)を作製した。この場合、実施例1の空気透過性部材11としては、面積12cm 、厚さ0.3mmのシリコーンゴム(ポリジメチルシロキサン)(空気透過率(25℃)500×10−9cm・cm/cm・sec・cmHg)を使用した。また、双方とも吐出孔5の口径は1.8mmとし、表1の組成の薬液Aを、薬液タンク1(満容量92mL)に80g充填した。
【0037】
【表1】

Figure 2004232394
実施例1及び比較例1の薬液吐出具100A、100xをそれぞれ水洗トイレの手洗い部に載置し、実使用に供し(水温22℃、気温24℃、水温と気温の差2℃)、1時間に1回の割合で500回フラッシュし、所定のフラッシュ回数における薬液吐出具100A、100x内の液残量を測定した。また、トイレの水封部の青色の水の吸光度(630nm)を測定した。なお、吸光度の測定には、分光光時計(UV−2500PC、島津製作所)を用いた。結果を図5に示す。
【0038】
図5の結果から、実施例1によれば、水封部の水の吸光度は、フラッシュ回数を重ねてもほぼ一定であり、液残量はフラッシュ回数を重ねるにしたがって減少しているのに対し、比較例1によれば、実施例1に比して水封部の水の吸光度が小さく、特に、500回のフラッシュ時点では、開始時の1/3に減少し、また、液残量はフラッシュ回数を重ねても減少量が少ないこと、したがって、比較例1によれば、薬液が十分に吐出されず、薬液タンクには、洗浄効果の低い希釈液が残ることがわかる。
【0039】
【発明の効果】
本発明によれば、水洗トイレの手洗い付きロータンクの手洗い部に載置してロータンク内に薬液を供給する薬液吐出に関し、どのような使用環境下においても、薬液タンク内が過陰圧になることにより薬液が吐出されず、薬液タンク内に洗浄効果の低い希釈液が残るという不具合を解消することができる。
【図面の簡単な説明】
【図1】薬液吐出具の斜視図(a)、及びその使用状態の断面図(b)である。
【図2】薬液タンクが過陰圧状態にある薬液吐出具の断面図である。
【図3】薬液吐出具の斜視図(a)、その使用状態の断面図(b)、及び使用状態において薬液タンクが過陰圧である場合の断面図(c)である。
【図4】薬液吐出具の斜視図(a)、及びその使用状態の断面図(b)である。
【図5】フラッシュ回数と、吐出具内の液残量、水封部の水の吸光度との関係図である。
【図6】薬液吐出具の斜視図(a)及びその使用状態の断面図(b)である。
【図7】薬液タンク内が過陰圧状態にある薬液吐出具の断面図である。
【符号の説明】
1 薬液タンク
4 薬液吐出ノズル
5 吐出孔
10 圧力調整部
11 空気透過性部材
12 蛇腹構造を有する変形部材
20 手洗い部
100A、100B、100C、100D 本発明の薬液吐出具
100x 薬液吐出具
A 薬液
HS ヘッドスペース
W 手洗水、水[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a chemical solution discharge container which is placed on a hand washing portion of a low tank with hand washing of a flush toilet and is suitable for mixing a chemical solution with water supplied from a caran above the hand washing portion.
[0002]
[Prior art]
Patented as a chemical dispensing tool that is placed on the hand washing section of a low tank with hand washing in a flush toilet, and used to mix chemicals (fragrances, detergents, bactericides, etc.) into the water supplied from the caran above the hand washing section. 2. Description of the Related Art An on-tank type chemical liquid supply device described in Document 1 is known. This liquid medicine supply device inserts a liquid supply tap having a fine transport path structure composed of pores, narrow grooves, and the like into a container for accommodating a liquid medicine, stores the liquid medicine leaking through the liquid supply tap in a storage tank, and rinses the liquid. By flushing the toilet water, when the hand washing water flows through the hand washing section, the medicine is washed away with the water and the medicine flows into the low tank.
[0003]
[Patent Document 1] Japanese Patent Application Laid-Open No. 2002-146879
[Problems to be solved by the invention]
However, since the above-mentioned chemical liquid discharger leaks the chemical liquid from a small gap such as a fine hole or a narrow groove formed in the liquid supply plug, the amount of leakage greatly varies due to variations in molding and the like. Even when flushing is not performed, the drug solution may leak, and the drug solution may leak in a short period of time.
[0005]
On the other hand, as shown in FIG. 6 (a), a chemical solution ejection tool 100x having a simpler mechanism includes a chemical solution tank 1 for storing a chemical solution A and a cap 3 attached to a bottom opening 2 of the chemical solution tank 1. It is conceivable that the cap 3 is provided with a chemical solution discharge nozzle 4 and a foot 6. A discharge hole 5 is opened at the tip of the chemical liquid discharge nozzle 4, and the chemical liquid A is held there by the surface tension and the inside of the chemical liquid tank 1 being in a weak negative pressure state.
[0006]
When the chemical dispenser 100x is placed on the water supply port 21 of the hand washing unit 20 of the low tank and the water in the flush toilet is flushed, the water W is supplied from the curan to the hand washing unit 20 as shown by an arrow. The water W flows down into the low tank so as to wash the chemical solution discharge nozzle 4 holding the chemical solution A (FIG. 6B). Therefore, according to the chemical liquid ejection device 100x, it is possible to mix the chemical liquid A into the low tank every time water is supplied from the curran with a simple mechanism.
[0007]
The inside of the chemical tank 1 has a negative pressure in accordance with the amount of the chemical A supplied to the low tank, but the diluent, water, or air of the chemical attached to the discharge hole 5 of the chemical discharge nozzle 4 discharges the discharge hole. 5 immediately enters the chemical liquid tank 1, so that the inside of the chemical liquid tank 1 returns to a weak negative pressure state. Thereafter, this action is repeated each time water is supplied from the curan, and the chemical liquid diluent, water or air is replaced in the chemical liquid tank 1.
[0008]
Here, when the water temperature of the water W is sufficiently lower than the room temperature of the toilet, the air in the head space HS in the chemical solution tank 1 is cooled by the water supply from the caran, and gradually becomes room temperature when the water supply from the caran stops. Returning, during this time, the air in the head space HS expands, whereby the chemical liquid A is also discharged, and the liquid amount in the chemical liquid tank 1 is surely reduced.
[0009]
On the other hand, when the water temperature of the water W is higher than the room temperature of the toilet, the head space HS in the chemical liquid tank 1 is heated when water is supplied from the caran, the air in the head space HS expands, and the chemical liquid A is discharged. At the time of discharging the chemical solution A, since the inside of the chemical solution tank 1 is heated and pressurized, the amount of the water W that enters the chemical solution tank 1 by replacement is small. Therefore, the amount of the liquid in the chemical liquid tank 1 decreases as the use is repeated.
[0010]
However, when using the liquid medicine ejection tool 100x, when the water temperature is extremely lower than the room temperature of the toilet, the air in the head space HS in the liquid medicine tank 1 is excessively cooled by the water supply from the caran, and the inside of the liquid medicine tank 1 is cooled. Hyper negative pressure. For this reason, as shown in FIG. 7, the chemical solution A is recessed in the back of the discharge hole 5, so that the chemical solution A cannot be mixed into the low tank even if hand washing water is flushed, and further, the discharge hole 5 , The hand washing water W enters the chemical tank 1, so that the amount of liquid in the chemical tank 1 does not decrease so much even after repeated use, and a diluent having a low cleaning effect remains in the chemical tank 1. Therefore, apparently, there is a problem that a sufficient medicinal effect cannot be obtained even though the chemical solution A is contained in the chemical solution tank 1.
[0011]
On the other hand, the present invention relates to a chemical dispensing device that is placed on the hand washing section of a low tank with hand washing of a flush toilet and supplies a chemical solution into the low tank, and the room temperature and water temperature of the toilet depend on the installation location and season of the chemical solution dispensing device. The purpose of the present invention is to eliminate the problem that, under any use environment, a chemical solution is not discharged due to excessive negative pressure inside the chemical solution tank and a diluent having a low cleaning effect remains in the chemical solution tank. I do.
[0012]
[Means for Solving the Problems]
The present inventor has found that the above-described object can be achieved by providing a pressure adjusting section made of an air-permeable member or a deformable deformable member in a chemical liquid tank and eliminating a negative pressure in the chemical liquid tank.
[0013]
That is, the present invention includes a chemical solution tank for storing a chemical solution, and a chemical solution discharge nozzle provided below the chemical solution tank, and a discharge hole capable of holding the chemical solution by surface tension is opened in the chemical solution discharge nozzle. Provided is a chemical liquid ejection container, wherein a pressure adjusting section made of an air-permeable member is provided at a position where a head space is formed in a chemical liquid tank.
[0014]
In addition, a chemical solution container that stores a chemical solution, and a chemical solution discharge nozzle that is provided with a chemical solution discharge nozzle provided below the chemical solution tank, and has a discharge hole capable of holding a chemical solution due to surface tension in the chemical solution discharge nozzle. In addition, the present invention provides a chemical solution discharge container in which a pressure adjusting portion formed of a restorable deformable member is provided at a position where a head space is formed in a chemical solution tank.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings. In the drawings, the same reference numerals indicate the same or equivalent components.
[0016]
FIG. 1 is a perspective view (a) of a chemical liquid ejection device 100A according to one embodiment of the present invention, and a cross-sectional view (b) of a usage state thereof.
[0017]
The chemical liquid ejection device 100A includes a chemical liquid tank 1 containing a chemical liquid A containing a fragrance for toilet, a cleaning agent, a germicide, and the like, and a cap 3 attached to a bottom opening 2 of the chemical liquid tank 1. A liquid discharge nozzle 4 and a foot 6 are integrally provided on the cap 3, and a liquid A is held in a discharge hole 5 opened at the tip of the liquid discharge nozzle 4 by surface tension. In addition, a pressure adjusting unit 10 made of an air-permeable member 11 is provided on the top wall surface of the chemical liquid tank 1 forming the head space HS.
[0018]
The pressure adjusting section 10 gradually reduces excessive pressure fluctuations in the chemical liquid tank 1. As the air permeable member 11 forming the pressure adjusting section 10, an air permeable film, an air permeable ceramic or the like is used. Can be.
[0019]
The preferable air permeability of the air-permeable member 11 is determined according to the thickness, the area, the viscosity of the chemical solution A, the diameter of the discharge hole 5, and the like. For example, the viscosity of the chemical solution A (25 ° C.) is 1 to 5000 mPa · s. When the diameter of the discharge hole 5 is 1 to 5 mm, the air-permeable member 11 has an air permeability (25 ° C.) of 1 × 10 −9 to 5000 × 10 −9 cm 3 · cm / cm 2 · sec · cmHg. , A thickness of 0.1 to 2 mm, and an area of 0.1 to 30 cm 2 . More specifically, such an air permeable member 11 is made of silicone rubber (polydimethylsiloxane: air permeability 500 × 10 −9 cm 3 · cm / cm 2 · sec · cmHg), natural rubber (air permeability 8.5 × 10 −9 cm 3 · cm / cm 2 · sec · cmHg) or the like.
[0020]
In particular, when an elastic member such as silicone rubber or natural rubber is used as the air permeable member 11 as in the chemical liquid ejection device 100B shown in FIG. It is preferable that the member 11 is deformed so as to be recessed inside the chemical solution tank 1, which also reduces pressure fluctuation in the chemical solution tank 1.
[0021]
In order to return the inside of the chemical solution tank 1 to normal pressure after the pressure change, even if a single pinhole with a diameter of about 0.1 mm is made in the wall surface of the resin-molded chemical solution tank, it will be consumed in the first three months. Since the chemical solution is consumed in about two to three days, it is not preferable to obtain the air permeability of the air-permeable member 11 by forming the pinhole.
[0022]
Further, the formation position of the pressure adjusting portion 10 composed of the air-permeable member 11 is a portion where the head space HS is formed in the chemical solution tank 1, and is preferably a portion that does not come into contact with the chemical solution A, but is always necessarily as shown in FIG. Need not be formed at the top of the chemical solution tank 1.
[0023]
In the present invention, as the chemical solution A, a chemical solution containing a fragrance, a detergent, a bactericide, etc., whose viscosity (25 ° C.) is adjusted to 1 to 5000 mPa · s, preferably 1 to 300 mPa · s, is used. It is preferable that the diameter of the discharge hole 5 for the chemical solution A is 1 to 5 mm. If the viscosity of the chemical solution A exceeds 5000 mPa · s, or if the diameter of the discharge hole 5 is smaller than 1 mm, it is difficult to discharge the chemical solution A from the chemical solution tank 1 to the discharge hole 5. Conversely, if the viscosity of the chemical solution A is lower than 1 mPa · s or if the diameter of the discharge hole 5 is wider than 5 mm, the chemical solution A easily leaks from the discharge hole 5 excessively.
[0024]
This chemical liquid discharging device 100A is used in the same manner as the chemical liquid discharging device 100x shown in FIG. That is, in a state where the chemical solution A is stored in the chemical solution tank 1, the chemical solution discharging tool 100A is placed on the water supply port 21 of the hand washing section 20 of the low tank with hand washing of the flush toilet (FIG. 1B). In this case, the chemical solution discharge nozzle 4 is inserted into the water supply port 21. A case in which curan is provided on the water supply port 21 of the low tank and water is supplied from above the chemical liquid tank 1 will be described below. However, there is no curan on the water supply port 21 of the low tank, and therefore, When the chemical liquid discharge nozzle 4 is inserted into the water supply port 21, even when water is supplied from the curran on the side of the chemical liquid tank 1, the chemical liquid discharge tool 100A can be used.
[0025]
After the chemical dispensing tool 100A is placed on the hand washing section 20, the water in the flush toilet is flushed and water W is supplied from the curan. When the water W is washed, the chemical dispensing nozzle 4 holding the chemical A is washed and the low tank is washed. FIG. 1 (b) flowing down. Therefore, the chemical solution A held in the discharge hole 5 is eroded by the water W and mixed into the low tank.
[0026]
When the water supply from the curan stops, the flow of the water that erodes the chemical solution A held in the discharge hole 5 stops, and the supply of the chemical solution A into the low tank also stops. The inside of the chemical solution tank 1 becomes a negative pressure in accordance with the amount of the chemical solution A supplied to the raw tank, but the diluent, water or air of the medicine adhering to the discharge hole 5 is immediately discharged from the chemical solution tank 1 through the discharge hole 5. Therefore, the inside of the chemical solution tank 1 returns to a weak negative pressure state, and the chemical solution A is held in the discharge hole 5 in the same manner as before the supply of water from the curran.
[0027]
Thereafter, each time water is supplied from the curan, this action is repeated, and the chemical solution A is mixed into the raw tank. Here, even when the water temperature is extremely lower than the room temperature of the toilet and the air in the head space HS in the chemical liquid tank 1 is excessively cooled by the water supply from the caran, and the inside of the chemical liquid tank 1 becomes a super negative pressure, FIG. As shown in FIG. 1 (b), air enters the chemical liquid tank 1 through the pressure adjusting section 10 composed of the air permeable member 11, so that the inside of the chemical liquid tank 1 gradually returns to a weak negative pressure state. Alternatively, when the pressure adjusting unit 10 is formed from the air permeable member 11 having elasticity, as shown in FIG. 2, the negative pressure in the chemical liquid tank 1 is also reduced by the deformation of the pressure adjusting unit 10. Is done. Therefore, the chemical liquid A is discharged by expanding as the air in the head space HS returns from the cooled state to the room temperature, and the liquid amount in the chemical liquid tank 1 is surely reduced. Therefore, according to the chemical liquid ejector 100A, even if flushing is repeated, the problem that the liquid amount in the chemical liquid tank 1 does not decrease and a diluent having a low cleaning effect remains can be solved.
[0028]
In addition, the configuration of the chemical liquid ejection device 100A is extremely simple, and the number of components is small. The chemical solution tank 1 and the cap 3 integrated with the chemical solution discharge nozzle 4 can be easily manufactured by plastic molding, respectively. Therefore, the chemical liquid ejection device 100A can be obtained at low cost. Further, the chemical solution A can be surely mixed into the low tank by supplying water from the curan. At this time, the chemical solution A does not spread to the hand washing section 20, so that the hand washing section 20 is not stained with the chemical solution A.
[0029]
FIG. 3 is a perspective view (a), a sectional view (b) of the used state of the chemical liquid ejection device 100C according to a different embodiment of the present invention, and a cross-sectional view (c) of the case where the chemical liquid tank is in a super negative pressure in the used state. It is.
[0030]
This chemical liquid ejection device 100C has a configuration in which the pressure adjusting section 10 is formed of a deformable member 12 having a bellows structure instead of the air permeable member 11 in the above-described chemical liquid ejection device 100A. When the inside of the chemical solution tank 1 becomes a negative pressure of about 1 kPa, the deformable member 12 contracts as shown in FIG. 3C to reduce the volume by 0.1 to 3 mL. It restores the shape. If the deformation amount of the deformable member 12 is too large, the negative pressure is less likely to be generated, so that the chemical solution A is excessively discharged. If the deformation amount is too small, the negative pressure is not eliminated, so that it is difficult to discharge the chemical solution A, which is not preferable.
[0031]
Further, the deformable member 12 is formed of a resin molded product having no air permeability such as the air permeable member 11 described above.
[0032]
According to the chemical liquid ejector 100C, the water temperature is extremely lower than the room temperature of the toilet, and when the air in the head space HS in the chemical liquid tank 1 is excessively cooled by the water supply from the caran, the deformable member 12 contracts. It is possible to prevent the inside of the chemical liquid tank 1 from becoming a super negative pressure. Therefore, the problem that the chemical solution A is recessed in the back of the discharge hole 5 and the chemical solution A cannot be mixed into the low tank even if the hand washing water is flushed can be solved. And the problem that diluent having a low cleaning effect remains remains.
[0033]
In the present invention, in the case where the pressure adjusting portion including the restorable deformable member 12 is provided in the chemical liquid tank 1, the deformable member 12 is not limited to the one having the bellows structure. For example, a plate-like elastic material such as butyl rubber or natural rubber may be provided instead of the air-permeable member 11 in FIG.
[0034]
Further, the position where the deformable member 12 is provided in the chemical liquid tank 1 is a position where the own weight of the chemical liquid A is not applied. When the deformable member 12 is provided at a position where the own weight of the chemical solution A is applied, such as the bottom surface of the chemical solution tank 1, the air in the head space HS in the chemical solution tank 1 is excessively cooled by water supply from the curan, and the deformable member 12 is once cooled. When the head space is shrunk, the head space HS is not restored again, so that it is impossible to cope with a case where the head space HS is excessively cooled again.
[0035]
The present invention can take various aspects as long as a pressure adjusting section made of an air-permeable member or a pressure adjusting section made of a deformable deformable member is provided in the chemical liquid tank. For example, the top plate 7 may be provided on the pressure adjustment unit 10 including the air-permeable member 11 as in a chemical liquid ejection device 100D shown in FIG. When the water of the curan is supplied from directly above the chemical liquid ejection tool 100A, the top plate 7 is provided to prevent the water from directly hitting the chemical liquid tank 1, and thereby the chemical liquid A from the chemical liquid tank 1 is prevented. Is preferable because the supply amount can be stabilized against fluctuations in water temperature or air temperature. Further, as shown in FIG. 4 (b), the water W supplied from the curran flows radially along the top plate 10A and presents a beautiful veil appearance of water, so that the usability of the chemical liquid ejector is improved. Is also preferred.
[0036]
【Example】
Example 1, Comparative Example 1
The chemical liquid ejection device 100A of FIG. 1 (Example 1) and the chemical liquid ejection device 100x of FIG. 6 (Comparative Example 1) were produced. In this case, as the air permeable member 11 of Example 1, silicone rubber (polydimethylsiloxane) having an area of 12 cm 2 and a thickness of 0.3 mm (air permeability (25 ° C.) 500 × 10 −9 cm 3 · cm / using cm 2 · sec · cmHg). In both cases, the diameter of the discharge hole 5 was 1.8 mm, and 80 g of the drug solution A having the composition shown in Table 1 was filled in the drug solution tank 1 (92 mL in full capacity).
[0037]
[Table 1]
Figure 2004232394
Each of the chemical liquid ejectors 100A and 100x of Example 1 and Comparative Example 1 was placed on the hand washing section of a flush toilet and used for actual use (water temperature 22 ° C., air temperature 24 ° C., difference between water temperature and air temperature 2 ° C.), 1 hour Was flushed 500 times at a time, and the remaining amount of liquid in the chemical liquid ejectors 100A and 100x at the predetermined number of flushes was measured. In addition, the absorbance (630 nm) of blue water in the water seal portion of the toilet was measured. In addition, the spectrophotometer (UV-2500PC, Shimadzu Corporation) was used for the measurement of the absorbance. FIG. 5 shows the results.
[0038]
From the results of FIG. 5, according to Example 1, the absorbance of water in the water seal portion is substantially constant even when the number of flushes is repeated, and the remaining amount of liquid decreases as the number of flushes is increased. According to Comparative Example 1, the absorbance of water in the water seal portion was smaller than that of Example 1, and in particular, at the time of 500 flushes, it was reduced to 1/3 of the start time, and the remaining amount of liquid was It can be seen that the amount of decrease is small even if the number of flushes is repeated. Therefore, according to Comparative Example 1, the chemical liquid is not sufficiently discharged, and the diluent having a low cleaning effect remains in the chemical liquid tank.
[0039]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, about the chemical | medical solution discharge which supplies a chemical | medical solution to a low tank with a hand wash part of the hand tank of a flush toilet, and supplies a chemical solution in a low tank, under any use environment, the inside of a chemical | medical solution tank will become a super negative pressure. Accordingly, it is possible to solve the problem that the chemical liquid is not discharged and the diluent having a low cleaning effect remains in the chemical liquid tank.
[Brief description of the drawings]
FIG. 1 is a perspective view (a) of a chemical liquid ejector and a cross-sectional view (b) of a state of use thereof.
FIG. 2 is a cross-sectional view of the liquid medicine ejection tool in which the liquid medicine tank is in a super negative pressure state.
FIGS. 3A and 3B are a perspective view of the liquid medicine ejection tool, a cross-sectional view of the liquid medicine in use, and a cross-sectional view of the liquid medicine tool when the liquid medicine tank is in a super negative pressure in the used state.
FIG. 4 is a perspective view (a) of the liquid medicine ejection device and a cross-sectional view (b) of the used state thereof.
FIG. 5 is a diagram showing the relationship between the number of flushes, the remaining amount of liquid in a discharge tool, and the absorbance of water in a water sealing portion.
6A and 6B are a perspective view and a cross-sectional view of a chemical liquid ejection device in a state of use.
FIG. 7 is a cross-sectional view of the liquid medicine ejection device in which the inside of the liquid medicine tank is in a hyper-negative pressure state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Chemical liquid tank 4 Chemical liquid discharge nozzle 5 Discharge hole 10 Pressure adjusting part 11 Air permeable member 12 Deformable member 20 having a bellows structure Hand washing parts 100A, 100B, 100C, 100D Chemical liquid discharge tool 100x Chemical liquid discharge tool A Chemical liquid HS head of the present invention Space W Hand wash water, water

Claims (6)

薬液を収容する薬液タンク、及び薬液タンクの下方に設けられた薬液吐出ノズルからなり、薬液吐出ノズルに、表面張力により薬液を保持することのできる吐出孔が開口している薬液吐出容器であって、薬液タンクにおいてヘッドスペースが形成される部位に、空気透過性部材からなる圧力調整部が設けられている薬液吐出容器。A chemical solution discharge container comprising a chemical solution tank for storing a chemical solution, and a chemical solution discharge nozzle provided below the chemical solution tank, wherein a discharge hole capable of holding the chemical solution by surface tension is opened in the chemical solution discharge nozzle. A chemical solution discharge container provided with a pressure adjusting portion made of an air-permeable member at a position where a head space is formed in the chemical solution tank; 薬液を収容する薬液タンク、及び薬液タンクの下方に設けられた薬液吐出ノズルからなり、薬液吐出ノズルに、表面張力により薬液を保持することのできる吐出孔が開口している薬液吐出容器であって、薬液タンクにおいてヘッドスペースが形成される部位に復元性の変形部材からなる圧力調整部が設けられている薬液吐出容器。A chemical solution discharge container comprising a chemical solution tank for storing a chemical solution, and a chemical solution discharge nozzle provided below the chemical solution tank, wherein a discharge hole capable of holding the chemical solution by surface tension is opened in the chemical solution discharge nozzle. A chemical solution discharge container provided with a pressure adjusting portion made of a restorable deformable member at a position where a head space is formed in the chemical solution tank; 変形部材が、弾性部材からなる請求項2記載の薬液吐出容器。3. The chemical liquid ejection container according to claim 2, wherein the deformable member is an elastic member. 変形部材が、蛇腹構造を有する請求項2記載の薬液吐出容器。3. The liquid medicine ejection container according to claim 2, wherein the deformable member has a bellows structure. 圧力調整部が、厚さ0.1〜2mm、面積0.1〜30cm のシリコーンゴムからなる1又は2記載の薬液吐出容器。3. The chemical liquid discharge container according to 1 or 2, wherein the pressure adjusting section is made of silicone rubber having a thickness of 0.1 to 2 mm and an area of 0.1 to 30 cm 2 . 請求項1〜5のいずれかに記載の薬液吐出容器の薬液タンクに薬液が収容されてなる薬液吐出具。A chemical discharging device comprising a chemical liquid stored in a chemical liquid tank of the chemical liquid discharging container according to claim 1.
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JP2007224622A (en) * 2006-02-23 2007-09-06 Matsushita Electric Works Ltd Flush toilet bowl device

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