JP3823428B2 - Shower head with sustained drug release function - Google Patents

Shower head with sustained drug release function Download PDF

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JP3823428B2
JP3823428B2 JP08942897A JP8942897A JP3823428B2 JP 3823428 B2 JP3823428 B2 JP 3823428B2 JP 08942897 A JP08942897 A JP 08942897A JP 8942897 A JP8942897 A JP 8942897A JP 3823428 B2 JP3823428 B2 JP 3823428B2
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drug
opening
cartridge
shower head
sustained release
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JPH10276926A (en
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広典 鳩野
正寿 榎
英之 松井
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東陶機器株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は薬剤徐放機能付シャワーヘッドに関するものである。本発明におけるシャワーヘッドは、浴用のシャワーヘッドのみならず器具洗浄用放水ノズル、洗車用放水ノズル等をも含む概念である。
【0002】
【従来の技術】
特開平5−293053号、特開平6−296902号に、以下に示す構造の薬剤徐放機能付シャワーヘッドが開示されている。
▲1▼ 流入口流出口兼用の開口を有する水溶性の薬剤が充填されたカートリッジが、シャワーヘッドの外部に装着され、カートリッジの開口がシャワーヘッドの囲壁に形成された開口を介してシャワーヘッド内部の流路に連通している(特開平5−293053号 図4、7、8)。
▲2▼ 流入口流出口兼用の開口を有する水溶性の薬剤が充填されたカートリッジが、シャワーヘッドの囲壁に形成した開口に嵌合し、カートリッジの開口が、シャワーヘッド内部の流路に連通している(特開平5−293053号 図5、6)。
▲3▼ 一端が閉鎖され他端の中央部に流入口流出口兼用の開口が形成された筒状のカートリッジを内蔵する両端開放の筒状容器が、シャワーヘッドの流入口に接続されている。カートリッジには水溶性の薬剤が充填されている。カートリッジの側壁と筒状容器の側壁との間には環状の流路が形成され、カートリッジは、流入口流出口兼用の開口を上流側へ向けて、筒状容器内に配設されている(特開平5−293053号 図9)。
▲4▼ 流入口と流出口とを有する水溶性の薬剤が充填されたカートリッジが、シャワーヘッドに装着され、カートリッジの流入口と流出口とが、シャワーヘッド内部の流路に連通している(特開平5−293053号 図12、13、14、特開平6−296902号 図1、2、3)。
【0003】
上記▲1▼、▲2▼の薬剤徐放機能付シャワーヘッドにおいては、シャワーヘッド内部の流路を流れる水が、流入口流出口兼用の開口を通ってカートリッジ内へ流入し、カートリッジに充填された水溶性の薬剤を徐々に溶かし、流入口流出口兼用の開口を介して、薬剤を流水中に徐放させる。
上記▲3▼の薬剤徐放機能付シャワーヘッドにおいては、筒状容器内を流れる水が、流入口流出口兼用の開口を通ってカートリッジ内へ流入し、カートリッジに充填された水溶性の薬剤を徐々に溶かし、流入口流出口兼用の開口を介して、薬剤を流水中に徐放させる。
上記▲4▼の薬剤徐放機能付シャワーヘッドにおいては、シャワーヘッド内部の流路を流れる水が、流入口を通ってカートリッジ内へ流入し、カートリッジに充填された水溶性の薬剤を徐々に溶かし、流出口を介して、薬剤を流水中に徐放させる。
【0004】
【発明が解決しようとする課題】
上記▲1▼〜▲4▼の薬剤徐放機能付シャワーヘッドには、カートリッジ内に混入した空気が、シャワーの使用開始、使用停止に伴うカートリッジ内部の圧力変動によって膨張、収縮し、カートリッジ内の薬剤が過剰に放出されるおそれがあるという問題がある。また、カートリッジが軟質材で形成されている場合には、シャワーの使用開始、使用停止に伴うカートリッジ内部の圧力変動によってカートリッジが膨張、収縮し、或いは、使用者がシャワーヘッドの外部に装着されたカートリッジに圧迫を加えることによりカートリッジが収縮し、カートリッジ内の薬剤が過剰に放出されるおそれがあるという問題がある。
本発明は上記の問題点に鑑みてなされたものであり、シャワーの使用中に薬剤が充填されたカートリッジから薬剤が流水中ヘ過剰に放出されるおそれが無く、、薬剤の流水中への安定した徐放が保証され、シャワーの不使用時にカートリッジからの薬剤の流出が防止された、薬剤徐放機能付シャワーヘッドを提供することを目的とする。
【0005】
【課題を解決するための手段】
前記課題を解決するために、本発明においては、一端が閉鎖され他端に開口が形成された硬質材から成る筒体容器内に水溶性の液状の薬剤又は水溶性の薬剤と該薬剤の飽和水溶液とが充填され、筒体容器内に空気層を含まず、開口が多孔質膜によって覆われた薬剤徐放カートリッジと、シャワーヘッドとを備え、薬剤徐放カートリッジは開口を上流側へ向けてシャワーヘッドの通水路内に配設され、薬剤徐放カートリッジと通水路壁との間に環状隙間が形成され、更に、薬剤徐放カートリッジを上流側ヘ付勢する付勢手段と、シャワーヘッドの通水路内に且つ薬剤徐放カートリッジの上流に配設され前記通水路を塞ぐ弁部材とを備え、弁部材には薬剤徐放カートリッジの開口に対峙する弁体と弁体の近傍に配設された開口とが形成され、シャワーヘッドの止水時に薬剤徐放カートリッジの前記他端が弁部材の弁体に当接して開口が弁体によって閉鎖され、シャワーヘッドの通水時に弁部材の開口を通って流れる水の水圧によって薬剤徐放カートリッジが下流側へ移動し薬剤徐放カートリッジの前記他端が弁部材の弁体から離れて薬剤徐放カートリッジの開口が開放されることを特徴とする薬剤徐放機能付シャワーヘッドを提供する。
【0006】
上記薬剤徐放機能付シャワーヘッドにおいては、シャワーの不使用時、すなわちシャワーヘッドの止水時には、付勢手段で付勢された薬剤徐放カートリッジが上流側へ移動しカートリッジの端部が弁部材の弁体に当接して薬剤徐放カートリッジの開口が弁体によって閉鎖され、薬剤徐放カートリッジからの薬剤の流出が防止される。
シャワーの使用時、すなわちシャワーヘッドの通水時に、弁部材の開口を通って流れる水の水圧によって付勢手段の付勢力に逆らって薬剤徐放カートリッジが下流側へ移動し、薬剤徐放カートリッジの端部が弁部材の弁体から離れて薬剤徐放カートリッジの開口が開放される。シャワーヘッドの通水路から、薬剤徐放カートリッジの開口を通って、薬剤徐放カートリッジ内に水が侵入し、薬剤徐放カートリッジ内の水溶性の液状の薬剤又は水溶性の薬剤の飽和水溶液が、前記開口を通って、シャワーヘッドの通水路へ放出される。薬剤徐放カートリッジの開口は多孔質膜によって覆われており、薬剤徐放カートリッジ内には圧力変動によって体積が変化する空気が存在せず、薬剤徐放カートリッジは硬質材で形成され外圧を加えても変形しないので、薬剤徐放カートリッジ内の水と水溶性の液状の薬剤又は水溶性の薬剤の飽和水溶液の流れが安定する。この結果、薬剤徐放カートリッジ内の水溶性の液状の薬剤又は水溶性の薬剤の飽和水溶液は、シャワーの使用中に過剰放出されることなく安定してシャワーヘッドの通水路内を流れる水に徐放される。
【0007】
薬剤徐放カートリッジに、弁部材の開口を通って流れる水を薬剤徐放カートリッジの開口ヘ導く案内部材を取り付けることにより、シャワー使用時に、薬剤徐放カートリッジへ水を確実に侵入させ、薬剤徐放カートリッジ内の薬剤を確実に徐放させることができる。
薬剤徐放カートリッジに取り付けた案内部材を弁部材の開口に常時係合させ、薬剤徐放カートリッジが移動する際のガイドとして機能させることにより、薬剤徐放カートリッジの開口と弁部材の弁体、開口とが常に正規の相対位置関係に保たれ、シャワー不使用時に薬材徐放カートリッジからの薬剤の流失が確実に防止され、シャワー使用時に薬剤徐放カートリッジから薬剤が安定して徐放される。
【0008】
弁部材の開口を、薬剤徐放カートリッジの開口へ差し向けることにより、シャワー使用時に、薬剤徐放カートリッジへ水を確実に侵入させ、薬剤徐放カートリッジ内の薬剤を確実に徐放させることができる。
薬剤徐放カートリッジに、弁部材に常時係合する案内部材を取り付け、薬剤徐放カートリッジが移動する際のガイドとして機能させることにより、薬剤徐放カートリッジの開口と弁部材の弁体、開口とが常に正規の相対位置関係に保たれ、シャワー不使用時に薬材徐放カートリッジからの薬剤の流失が確実に防止され、シャワー使用時に薬剤徐放カートリッジから薬剤が安定して徐放される。
【0009】
アスコルビン酸とアスコルビン酸の飽和水溶液とを薬剤徐放カートリッジに充填することにより、シャワーヘッドから散水される水道水から残留塩素を除去し、シャワー使用者の快適感を増大させることができる。
【0010】
【発明の実施の形態】
本発明の第1実施例に係る薬剤徐放機能付浴用シャワーヘッドを図1〜5に基づいて説明する。
図1に示すように、シャワーヘッドは、第1円筒体1と、第1円筒体1の下流端に螺合する第2円筒体2と、第2円筒体2の下流端にビス止めされる散水多孔板3とを有している。第1円筒体1の内部空間と、第2円筒体2の内部空間とは、通水路を形成している。第1筒体1の上流端は、図示しない給水ホースに連結されている。
図1、2に示すように、第1円筒体1の上流端部に、通水路を塞いで、円筒状の弁部材4が緊密に内嵌合している。図3に示すように、弁部材4の下流端に、長円状の端壁4a1 が形成され、端壁4a1 の両側に端壁4a1 に隣接して半月状の開口4b1 、4b2 が形成され、端壁4a1 に同一形状のパッキン4a2 が接着固定されている。端壁4a1 とパッキン4a2 とにより、弁体4aが形成されている。
図1に示すように、第2円筒体2の上流端に、円筒状のバネガイド5が緊密に内嵌合している。バネガイド5の下流端に蓮根状のブッシュ6が内嵌合している。バネガイド5とブッシュ6とに挟持されて、付勢手段であるコイルバネ7が配設されている。コイルバネ7の上流端は、第1円筒体1内まで延びている。
【0011】
図1に示すように、通水路内に、且つブッシュ6と弁部材4との間に、薬剤徐放カートリッジ8が挿入されている。薬剤徐放カートリッジ8は、図1、2、4に示すように、アクリル樹脂等の硬質材料から成り、一端が閉鎖され他端が開放された円筒体8aと、円筒体8aの開放端を覆う硬質材料からなるカバー8bと、カバー8bに形成された、弁部材4の弁体4aよりも僅かに小さな長円形の開口8b1 、に嵌め込まれてカバー8に接着固定された長円形の多孔質膜8cとにより構成されている。
図1、2に示すように、薬剤徐放カートリッジ8は、カバー8bと多孔質膜8cとで覆われた開放端を上流側へ向けて通水路内に挿入されている。通水路壁と薬剤徐放カートリッジ8との間に、環状隙間が形成されている。薬剤徐放カートリッジ8はコイルバネ7により上流側へ付勢されている。
薬剤徐放カートリッジ8は、アスコルビン酸の粉末とアスコルビン酸飽和水溶液とによって満たされており、薬剤徐放カートリッジ8内には圧縮性の空気は存在しない。薬剤徐放カートリッジ8の製造工程において、脱気した純水を用い、且つ、空気の混入を防止しつつ円筒体8aの開放端をカバー8bと多孔質膜8cとで覆うことにより、薬剤徐放カートリッジ8から空気を完全に排除することができる。
【0012】
図1、2に示すように、カバー8bに円板状の案内部材9が接着固定されている。図1、2、5に示すように、案内部材9には、カバー8bの開口8b1 よりも僅かに大きく、且つ弁部材4の弁体4aよりも僅かに大きな、長円形の開口9aが形成されている。開口9aは開口8b1 に正対している。案内部材9のカバー8bに接着固定された下流側端面には、開口9aの縁部から外縁部まで延びる4本の溝9bが形成されている。案内部材9の上流側端面には、開口9aの両側に開口9aに隣接して開口9aへ向かう半月状の傾斜面9c1 、9c2 が形成されている。傾斜面9c1 、9c2 の上流端から、円弧状断面を有する脚部9d1 、9d2 が上流側へ延びている。脚部9d1 、9d2 は、弁部材4の半月状の開口4b1 、4b2 に係合している。脚部9d1 、9d2 が、弁部材4の半月状の開口4b1 、4b2 に係合した状態で、弁部材4の弁体4aが、カバー8bの開口8b1 と案内部材9の開口9aとに正対している。
【0013】
上記構成を有する薬剤徐放機能付浴用シャワーヘッドの作動を説明する。
シャワーの不使用時、すなわち薬剤徐放機能付浴用シャワーヘッドの不通水時には、図1、2の左半部分に示すように、薬剤徐放カートリッジ8がコイルバネ7の付勢力を受けて上流側へ移動し、案内部材9の脚部9d1 、9d2 の基部が弁部材4の半月状の開口4b1 、4b2 に係合し、弁部材4の弁体4aが案内部材9の開口9aを通って、薬剤徐放カートリッジ8のカバー8bに当接し、カバー8bの開口8b1 を閉鎖している。この結果、シャワーの不使用時には、薬剤徐放カートリッジ8からのアスコルビン酸の流出が防止される。
シャワーの使用時、すなわち薬剤徐放機能付浴用シャワーヘッドの通水時には、図1、2の右半部分に示すように、弁部材4の開口4b1 、4b2 を通って流れる水道水の水圧により、コイルバネ7の付勢力に逆らって薬剤徐放カートリッジ8が下流側へ移動し、案内部材9の脚部9d1 、9d2 の先端部が弁部材4の半月状の開口4b1 、4b2 に係合し、薬剤徐放カートリッジ8のカバー8bが弁部材4の弁体4aから離れ、薬剤徐放カートリッジ8の開口8b1 が開放される。図1、2の右半部分で矢印で示すように、弁部材4の開口4b1 、4b2 を通った水道水が、案内部材9の脚部9d1 、9d2 と斜面9c1 、9c2 とに案内されて、開口9aへ向かって流れる。開口9aに達した水道水の一部は、開口9aと開口8b1 とを通って、薬剤徐放カートリッジ8内へ流入し、残余の部分は、溝9bを通って薬剤徐放カートリッジ8と通水路壁との間の環状の隙間へ流入する。
【0014】
薬剤徐放カートリッジ8内へ流入した水道水は、図1、2で矢印で示すように、薬剤徐放カートリッジ8の中心部を閉鎖端へ向かって進みつつ径方向へ拡散し、流れの方向を変え、薬剤徐放カートリッジ8の囲壁に沿う円筒状の流れとなって、薬剤徐放カートリッジ8の開放端へ向かって進む。薬剤徐放カートリッジ8内のアスコルビン酸が水道水中に溶解し、水道水はアスコルビン酸飽和水溶液となる。アスコルビン酸飽和水溶液は、薬剤徐放カートリッジ8の開口8b1 の周縁から外部へ流出し、案内部材9の溝9bを通る水道水に混入して、薬剤徐放カートリッジ8と通水路壁との間の環状の隙間へ流入する。
水道水に混入したアスコルビン酸により、水道水中の残留塩素が除去される。塩素臭が除去された水道水が、薬剤徐放カートリッジ8と通水路壁との間の環状の隙間を通り、更に蓮根状のブッシュ6を通り、散水多孔板3を通って吐出する。
【0015】
本実施例に係る薬剤徐放機能付浴用シャワーヘッドにおいては、薬剤徐放カートリッジ8の開口8b1 が多孔質膜8cによって覆われているので、水道水は徐々に薬剤徐放カートリッジ8内へ流入する。この結果、薬剤徐放カートリッジ8内の水道水とアスコルビン酸飽和水溶液の流れが安定する。薬剤徐放カートリッジ8内には圧力変動によって体積が変化する空気が存在しないので、薬剤徐放カートリッジ8内の水道水とアスコルビン酸飽和水溶液の流れが安定する。薬剤徐放カートリッジ8が硬質材で形成され内外圧差による変形を生じないので薬剤徐放カートリッジ8内の水道水とアスコルビン酸飽和水溶液の流れが安定する。この結果、薬剤徐放カートリッジ8内のアスコルビン酸飽和水溶液は、シャワーの使用中に過剰放出されることなく、案内部材9の溝9bを通る水道水中に安定して徐放される。
【0016】
薬剤徐放カートリッジ8に接着固定された案内部材9の斜面9c1 、9c2 と脚部9d1 、9d2 とが、弁部材4の開口4b1 、4b2 を通って流れる水道水を薬剤徐放カートリッジ8の開口8b1 ヘ導くので、シャワー使用時に、薬剤徐放カートリッジ8へ水道水が確実に侵入し、薬剤徐放カートリッジ8内のアスコルビン酸が確実に徐放される。
薬剤徐放カートリッジ8に接着固定された案内部材9の脚部9d1 、9d2 が弁部材4の開口4b1 、4b2 に常時係合し、薬剤徐放カートリッジ8が移動する際のガイドとして機能するので、薬剤徐放カートリッジ8の開口8b1 と弁部材4の弁体4a、開口4b1 、4b2 とが、常に正規の相対位置関係に保たれる。この結果、シャワー不使用時に薬材徐放カートリッジ8からのアスコルビン酸の流失が確実に防止され、シャワー使用時に薬剤徐放カートリッジ8からアスコルビン酸が安定して徐放される。
【0017】
本発明の第2実施例に係る薬剤徐放機能付浴用シャワーヘッドを図6〜8に基づいて説明する。
本実施例に係る薬剤徐放機能付浴用シャワーヘッドにおいては、薬剤徐放カートリッジ8の円筒体8aの開放端を覆う硬質材料からなるカバー8bに、長円形の開口8b1 に加えて、上流側ヘ延びる2本の案内脚8b2 が形成されている。長円形の開口8b1 には長円形の多孔質膜8cが嵌め込まれて接着固定されている。円筒状の弁部材4の下流端に、長円形の端壁4a1 に代えて円形の端壁4a3 が形成され、端壁4a3 に長円形のパッキン4a2 が接着固定されて弁体4aを形成している。弁体4aの両側に、開口4b1 、4b2 に代えて、それぞれ3個の開口4b3 が形成されている。開口4b3 は、カバー8bの長円形の開口8b1 へ差し向けられており、端壁4a3 を斜めに貫通している。弁部材4の円筒部の外面に、長手方向に延在する2本の溝4cが形成されている。弁部材4の溝4cにカバー8bの案内脚8b2 が係合している。案内部材9は配設されてない。上記を除き、本実施例に係る薬剤徐放機能付浴用シャワーヘッドは、第1実施例に係る薬剤徐放機能付浴用シャワーヘッドと同一の構造を有している。
【0018】
本実施例に係る薬剤徐放機能付浴用シャワーヘッドにおいては、シャワーの不使用時、すなわち薬剤徐放機能付浴用シャワーヘッドの止水時には、図6の左半部分に示すように、カバー8bの案内脚8b2 の略全体が弁部材4の溝4cに係合し、弁部材4の弁体4aが薬剤徐放カートリッジ8のカバー8bに当接し、カバー8bの開口8b1 を閉鎖している。この結果、シャワーの不使用時には、薬剤徐放カートリッジ8からのアスコルビン酸の流出が防止される。
シャワーの使用時、すなわち薬剤徐放機能付浴用シャワーヘッドの通水時には、図6の右半部分に示すように、弁部材4の開口4b3 を通って流れる水道水の水圧により、コイルバネの付勢力に逆らって薬剤徐放カートリッジ8が下流側へ移動し、カバー8bの案内脚8b2 の先端部が弁部材4の溝溝4cに係合し、薬剤徐放カートリッジ8のカバー8bが弁部材4の弁体4aから離れ、薬剤徐放カートリッジ8の開口8b1 が開放される。図6の右半部分で矢印で示すように、薬剤徐放カートリッジ8の開口8b1 へ差し向けられた弁部材4の開口4b3 を通った水道水が、薬剤徐放カートリッジ8の開口8b1 へ向かって流れ、一部が開口8b1 を通って薬剤徐放カートリッジ8内へ流入し、残余の部分はカバー8bに沿って径方向外方へ流れて薬剤徐放カートリッジ8と通水路壁との間の環状の隙間へ流入する。薬剤徐放カートリッジ8内のアスコルビン酸飽和水溶液が開口8b1 の周縁から外部へ流出し、カバー8bに沿って径方向外方へ流れる水道水に混入して、薬剤徐放カートリッジ8と通水路壁との間の環状の隙間へ流入する。水道水に混入したアスコルビン酸により、水道水中の残留塩素が除去される。塩素臭が除去された水道水が、薬剤徐放カートリッジ8と通水路壁との間の環状の隙間を通り、蓮根状のブッシュを通り、散水多孔板を通って吐出する。
【0019】
薬剤徐放カートリッジ8の開口8b1 へ差し向けられた弁部材4の開口4b3 が、水道水を薬剤徐放カートリッジ8の開口8b1 ヘ導くので、シャワー使用時に、薬剤徐放カートリッジ8へ水道水が確実に侵入し、薬剤徐放カートリッジ8内のアスコルビン酸が確実に徐放される。
薬剤徐放カートリッジ8に接着固定されたカバー8の案内脚8b2 が弁部材4の溝4cに常時係合し、薬剤徐放カートリッジ8が移動する際のガイドとして機能するので、薬剤徐放カートリッジ8の開口8b1 と弁部材4の弁体4a、開口4b3 とが、常に正規の相対位置関係に保たれる。この結果、シャワー不使用時に薬材徐放カートリッジ8からのアスコルビン酸の流失が確実に防止され、シャワー使用時に薬剤徐放カートリッジ8からアスコルビン酸が安定して徐放される。
【0020】
以上本発明の実施例を説明したが、本発明は上記実施例に限定されない。
本発明に係る薬剤徐放機能付シャワーヘッドは、浴用シャワーヘッドに限定されない。本発明に係る薬剤徐放機能付シャワーヘッドは、薬剤徐放機能付器具洗浄用放水ノズル、薬剤徐放機能付洗車用放水ノズル等をも含む。薬剤徐放機能付器具洗浄用放水ノズル、薬剤徐放機能付洗車用放水ノズルに取り付けられる薬剤徐放カートリッジには、界面活性剤のような洗浄剤が充填される。
薬剤徐放カートリッジに充填される薬剤は、アスコルビン酸に限定されない。粉末状、粒状、液状のハーブ、芳香剤、殺菌剤、漢方薬、乳液、pH調整剤、洗浄剤、界面活性剤等を充填しても良い。
【0021】
【発明の効果】
上記説明から分かるごとく、本発明に係る薬剤徐放機能付シャワーヘッドにおいては、シャワーの不使用時、すなわちシャワーヘッドの止水時には、付勢手段で付勢された薬剤徐放カートリッジが上流側へ移動しカートリッジの端部が弁部材の弁体に当接して薬剤徐放カートリッジの開口が弁体によって閉鎖され、薬剤徐放カートリッジからの薬剤の流出が防止される。
シャワーの使用時、すなわちシャワーヘッドの通水時に、弁部材の開口を通って流れる水の水圧によって付勢手段の付勢力に逆らって薬剤徐放カートリッジが下流側へ移動し、薬剤徐放カートリッジの端部が弁部材の弁体から離れて薬剤徐放カートリッジの開口が開放される。シャワーヘッドの通水路から、薬剤徐放カートリッジの開口を通って、薬剤徐放カートリッジ内に水が侵入し、薬剤徐放カートリッジ内の水溶性の液状の薬剤又は水溶性の薬剤の飽和水溶液が、前記開口を通って、シャワーヘッドの通水路へ放出される。薬剤徐放カートリッジの開口は多孔質膜によって覆われており、薬剤徐放カートリッジ内には圧力変動によって体積が変化する空気が存在せず、薬剤徐放カートリッジは硬質材で形成され外圧を加えても変形しないので、薬剤徐放カートリッジ内の水と水溶性の液状の薬剤又は水溶性の薬剤の飽和水溶液の流れが安定する。この結果、薬剤徐放カートリッジ内の水溶性の液状の薬剤又は水溶性の薬剤の飽和水溶液は、シャワーの使用中に過剰放出されることなく安定してシャワーヘッドの通水路内を流れる水に徐放される。
【0022】
薬剤徐放カートリッジに、弁部材の開口を通って流れる水を薬剤徐放カートリッジの開口ヘ導く案内部材を取り付けることにより、シャワー使用時に、薬剤徐放カートリッジへ水を確実に侵入させ、薬剤徐放カートリッジ内の薬剤を確実に徐放させることができる。
薬剤徐放カートリッジに取り付けた案内部材を弁部材の開口に常時係合させ、薬剤徐放カートリッジが移動する際のガイドとして機能させることにより、薬剤徐放カートリッジの開口と弁部材の弁体、開口とが常に正規の相対位置関係に保たれ、シャワー不使用時に薬材徐放カートリッジからの薬剤の流失が確実に防止され、シャワー使用時に薬剤徐放カートリッジから薬剤が安定して徐放される。
【0023】
弁部材の開口を、薬剤徐放カートリッジの開口へ差し向けることにより、シャワー使用時に、薬剤徐放カートリッジへ水を確実に侵入させ、薬剤徐放カートリッジ内の薬剤を確実に徐放させることができる。
薬剤徐放カートリッジに、弁部材に常時係合する案内部材を取り付け、薬剤徐放カートリッジが移動する際のガイドとして機能させることにより、薬剤徐放カートリッジの開口と弁部材の弁体、開口とが常に正規の相対位置関係に保たれ、シャワー不使用時に薬材徐放カートリッジからの薬剤の流失が確実に防止され、シャワー使用時に薬剤徐放カートリッジから薬剤が安定して徐放される。
【0024】
アスコルビン酸とアスコルビン酸の飽和水溶液とを薬剤徐放カートリッジに充填することにより、シャワーヘッドから散水される水道水から残留塩素を除去し、シャワー使用者の快適感を増大させることができる。
【図面の簡単な説明】
【図1】本発明の第1実施例に係る薬剤徐放機能付浴用シャワーヘッドの縦断面図である。
【図2】図1の上流端近傍の部分拡大図である。
【図3】本発明の第1実施例に係る薬剤徐放機能付浴用シャワーヘッドが備える弁部材の構造図である。(a)は下流側の端面を示す図であり、(b)は(a)のb−b矢視図であり、(c)は(a)のc−c矢視図であり、(d)は上流側の端面を示す図である。
【図4】本発明の第1実施例に係る薬剤徐放機能付浴用シャワーヘッドが備える薬剤徐放カートリッジのカバーの構造図である。(a)は端面を示す図であり、(b)は(a)のb−b矢視図である。
【図5】本発明の第1実施例に係る薬剤徐放機能付浴用シャワーヘッドが備える案内部材の構造図である。(a)は下流側の端面を示す図であり、(b)は(a)のb−b矢視図であり、(c)は(a)のc−c矢視図であり、(d)は上流側の端面を示す図である。
【図6】本発明の第2実施例に係る薬剤徐放機能付浴用シャワーヘッドの上流端近傍の拡大縦断面図である。
【図7】本発明の第2実施例に係る薬剤徐放機能付浴用シャワーヘッドが備える弁部材の斜視図である。
【図8】本発明の第2実施例に係る薬剤徐放機能付浴用シャワーヘッドが備える薬剤徐放カートリッジのカバーの斜視図である。
【符号の説明】
1 第1円筒体
2 第2円筒体
3 散水多孔板
4 弁部材
4a 弁体
4b1 、4b2 、4b3 開口
4c 溝
7 コイルバネ
8 薬剤徐放カートリッジ
8a 円筒体
8b カバー
8b1 開口
8b2 案内脚
8c 多孔質膜
9 案内部材
9a 開口
9c1 、9c2 傾斜面
9d1 、9d2 脚部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shower head with a drug sustained release function. The shower head in the present invention is a concept including not only a shower head for bathing but also a water discharge nozzle for washing equipment, a water discharge nozzle for car washing, and the like.
[0002]
[Prior art]
Japanese Patent Application Laid-Open Nos. H5-293053 and H6-296902 disclose shower heads with a drug sustained release function having the following structure.
(1) A cartridge filled with a water-soluble medicine having an opening that also serves as an inlet / outlet is mounted on the outside of the shower head, and the opening of the cartridge passes through the opening formed in the surrounding wall of the shower head. (Figs. 4, 7, and 8 of JP-A-5-293053).
(2) A cartridge filled with a water-soluble medicine having an opening also serving as an inlet / outlet is fitted into an opening formed in the surrounding wall of the shower head, and the opening of the cartridge communicates with a flow path inside the shower head. (Japanese Patent Laid-Open No. 5-29053, FIGS. 5 and 6).
{Circle around (3)} A cylindrical container having an open end and containing a cylindrical cartridge in which one end is closed and an opening serving also as an inlet / outlet is formed at the center of the other end is connected to the inlet of the shower head. The cartridge is filled with a water-soluble drug. An annular flow path is formed between the side wall of the cartridge and the side wall of the cylindrical container, and the cartridge is disposed in the cylindrical container with the opening serving also as the inlet / outlet facing upstream. JP-A-5-293053 FIG. 9).
(4) A cartridge filled with a water-soluble medicine having an inflow port and an outflow port is attached to the shower head, and the inflow port and the outflow port of the cartridge communicate with the flow path inside the shower head ( JP-A-5-293530 FIGS. 12, 13, and 14, JP-A-6-296902 FIGS. 1, 2, and 3).
[0003]
In the above-mentioned shower heads with the drug slow release function (1) and (2), water flowing through the flow path inside the shower head flows into the cartridge through the opening serving as the inlet / outlet and is filled in the cartridge. The dissolved water-soluble drug is gradually dissolved, and the drug is gradually released into the running water through the opening serving also as the inlet / outlet.
In the above-described shower head with a medicine slow release function (3), water flowing in the cylindrical container flows into the cartridge through the opening serving also as the inlet / outlet, and the water-soluble medicine filled in the cartridge is removed. The drug is gradually dissolved, and the drug is gradually released into the running water through the opening also serving as the inlet / outlet.
In the shower head with the medicine slow release function of (4) above, water flowing through the flow path inside the shower head flows into the cartridge through the inlet and gradually dissolves the water-soluble medicine filled in the cartridge. The drug is gradually released into the running water through the outlet.
[0004]
[Problems to be solved by the invention]
In the shower heads with the medicine slow release function (1) to (4) above, the air mixed in the cartridge expands and contracts due to pressure fluctuations inside the cartridge as the shower starts and stops, There is a problem that the drug may be excessively released. If the cartridge is made of a soft material, the cartridge expands or contracts due to pressure fluctuations inside the cartridge when the use of the shower starts and stops, or the user is mounted outside the shower head. There is a problem that there is a possibility that the cartridge is contracted by applying pressure to the cartridge and the medicine in the cartridge is excessively released.
The present invention has been made in view of the above problems, and there is no possibility that the medicine is excessively released into the running water from the cartridge filled with the medicine during the use of the shower, and the medicine can be stabilized in the running water. It is an object of the present invention to provide a shower head with a sustained drug release function that guarantees sustained release and prevents the medicine from flowing out of the cartridge when the shower is not used.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, in the present invention, a water-soluble liquid medicine or a water-soluble medicine and a saturation of the medicine are contained in a cylindrical container made of a hard material having one end closed and an opening formed at the other end. A medicine sustained-release cartridge that is filled with an aqueous solution, does not contain an air layer in the cylindrical container, and has an opening covered with a porous membrane, and a shower head, and the medicine sustained-release cartridge is directed toward the upstream side. An annular gap is formed between the water passage of the shower head and the medicine sustained release cartridge and the water passage wall, and further, biasing means for biasing the medicine sustained release cartridge to the upstream side, A valve member disposed in the water passage and upstream of the drug slow-release cartridge and blocking the water passage. The valve member is disposed in the vicinity of the valve body facing the opening of the drug slow-release cartridge and the valve body. And an opening is formed -The other end of the medicine sustained release cartridge contacts the valve body of the valve member when the head is stopped, and the opening is closed by the valve body. The water pressure of the water flowing through the opening of the valve member when the shower head passes is Sustained release cartridge Downstream And the other end of the drug sustained release cartridge is separated from the valve body of the valve member so that the opening of the drug sustained release cartridge is opened.
[0006]
In the above-mentioned shower head with sustained drug release function, when the shower is not used, that is, when the shower head is stopped, the sustained drug release cartridge urged by the urging means moves upstream, and the end of the cartridge is a valve member. In contact with the valve body, the opening of the sustained-release cartridge is closed by the valve body, so that the outflow of the drug from the sustained-release cartridge is prevented.
During use of the shower, that is, when water is passed through the shower head, the drug sustained release cartridge moves downstream against the urging force of the urging means by the water pressure of the water flowing through the opening of the valve member. The end portion is separated from the valve body of the valve member, and the opening of the drug sustained release cartridge is opened. Water enters the drug sustained-release cartridge from the water passage of the showerhead through the opening of the drug sustained-release cartridge, and the water-soluble liquid drug or the saturated aqueous solution of the water-soluble drug in the drug sustained-release cartridge is It is discharged through the opening into the water passage of the shower head. The opening of the drug sustained-release cartridge is covered with a porous film, and there is no air whose volume changes due to pressure fluctuation in the drug sustained-release cartridge. The drug sustained-release cartridge is formed of a hard material and is applied with external pressure. Therefore, the flow of water in the drug sustained-release cartridge and the water-soluble liquid drug or the saturated aqueous solution of the water-soluble drug is stabilized. As a result, the water-soluble liquid medicine in the medicine sustained-release cartridge or the saturated aqueous solution of the water-soluble medicine is gradually discharged into the water flowing through the water passage of the shower head without being excessively released during use of the shower. Released.
[0007]
By attaching a guide member that guides the water flowing through the opening of the valve member to the opening of the drug sustained release cartridge to the drug sustained release cartridge, the water is surely intruded into the drug sustained release cartridge at the time of shower use. The drug in the cartridge can be surely and slowly released.
By constantly engaging the guide member attached to the drug sustained release cartridge with the opening of the valve member and functioning as a guide when the drug sustained release cartridge moves, the opening of the drug sustained release cartridge and the valve body of the valve member, opening Is always maintained in a normal relative positional relationship, and the medicine is surely prevented from flowing out of the medicine sustained release cartridge when the shower is not used, and the medicine is stably and gradually released from the medicine sustained release cartridge when the shower is used.
[0008]
By directing the opening of the valve member to the opening of the drug sustained-release cartridge, water can surely enter the drug sustained-release cartridge during shower use, and the drug in the drug sustained-release cartridge can be surely gradually released. .
By attaching a guide member that is always engaged with the valve member to the drug sustained release cartridge and functioning as a guide when the drug sustained release cartridge moves, the opening of the drug sustained release cartridge and the valve body and opening of the valve member are The normal relative positional relationship is always maintained, and the loss of the drug from the drug material sustained release cartridge is surely prevented when the shower is not used, and the drug is stably and gradually released from the drug sustained release cartridge when the shower is used.
[0009]
By filling the drug sustained-release cartridge with ascorbic acid and a saturated aqueous solution of ascorbic acid, residual chlorine can be removed from tap water sprayed from the shower head, and the comfort of the shower user can be increased.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
A bath shower head with a drug sustained release function according to a first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the shower head is screwed to the first cylindrical body 1, the second cylindrical body 2 screwed into the downstream end of the first cylindrical body 1, and the downstream end of the second cylindrical body 2. And a water spray porous plate 3. The internal space of the first cylindrical body 1 and the internal space of the second cylindrical body 2 form a water passage. The upstream end of the first cylinder 1 is connected to a water supply hose (not shown).
As shown in FIGS. 1 and 2, the upstream end portion of the first cylindrical body 1 closes the water passage, and the cylindrical valve member 4 is tightly fitted inside. As shown in FIG. 3, an oval end wall 4a is formed at the downstream end of the valve member 4. 1 And the end wall 4a 1 End wall 4a on both sides of 1 Adjoining a half-moon shaped opening 4b 1 4b 2 And the end wall 4a 1 The same shape of packing 4a 2 Is fixed by bonding. End wall 4a 1 And packing 4a 2 Thus, the valve body 4a is formed.
As shown in FIG. 1, a cylindrical spring guide 5 is closely fitted in the upstream end of the second cylindrical body 2. A lotus-like bush 6 is fitted in the downstream end of the spring guide 5. A coil spring 7 that is an urging means is disposed between the spring guide 5 and the bush 6. The upstream end of the coil spring 7 extends into the first cylindrical body 1.
[0011]
As shown in FIG. 1, a drug sustained release cartridge 8 is inserted in the water passage and between the bush 6 and the valve member 4. As shown in FIGS. 1, 2, and 4, the drug sustained release cartridge 8 is made of a hard material such as acrylic resin, and covers a cylindrical body 8a having one end closed and the other end opened, and an open end of the cylindrical body 8a. A cover 8b made of a hard material, and an oval opening 8b formed in the cover 8b and slightly smaller than the valve body 4a of the valve member 4 1 , And an oval porous membrane 8c that is fixed to the cover 8 by adhesion.
As shown in FIGS. 1 and 2, the drug sustained release cartridge 8 is inserted into the water passage with the open end covered with the cover 8 b and the porous membrane 8 c directed upstream. An annular gap is formed between the water passage wall and the drug sustained release cartridge 8. The drug sustained release cartridge 8 is urged upstream by a coil spring 7.
The drug sustained-release cartridge 8 is filled with ascorbic acid powder and a saturated aqueous solution of ascorbic acid, and there is no compressible air in the drug sustained-release cartridge 8. In the manufacturing process of the drug sustained release cartridge 8, the degassed pure water is used, and the open end of the cylindrical body 8a is covered with the cover 8b and the porous membrane 8c while preventing air from being mixed in, so that the drug sustained release is achieved. Air can be completely eliminated from the cartridge 8.
[0012]
As shown in FIGS. 1 and 2, a disc-shaped guide member 9 is bonded and fixed to the cover 8b. As shown in FIGS. 1, 2, and 5, the guide member 9 has an opening 8b in the cover 8b. 1 An oval opening 9a that is slightly larger than the valve body 4a of the valve member 4 is formed. Opening 9a is opening 8b 1 Is directly facing. Four grooves 9b extending from the edge of the opening 9a to the outer edge are formed on the downstream end surface of the guide member 9 that is bonded and fixed to the cover 8b. On the upstream end face of the guide member 9, a half-moon-shaped inclined surface 9c that faces the opening 9a on both sides of the opening 9a and adjacent to the opening 9a. 1 9c 2 Is formed. Inclined surface 9c 1 9c 2 Leg 9d having an arc-shaped cross section from the upstream end of 1 9d 2 Extends upstream. Leg 9d 1 9d 2 Is a half-moon shaped opening 4b of the valve member 4 1 4b 2 Is engaged. Leg 9d 1 9d 2 Is a half-moon shaped opening 4b of the valve member 4 1 4b 2 The valve body 4a of the valve member 4 is engaged with the opening 8b of the cover 8b. 1 And the opening 9a of the guide member 9.
[0013]
The operation of the bath showerhead with a drug sustained release function having the above configuration will be described.
When the shower is not used, that is, when the bath shower head with the drug slow release function is not in water, the drug slow release cartridge 8 receives the urging force of the coil spring 7 and moves upstream as shown in the left half of FIGS. The leg 9d of the guide member 9 moves 1 9d 2 Of the valve member 4 is a half-moon shaped opening 4b 1 4b 2 , The valve body 4a of the valve member 4 passes through the opening 9a of the guide member 9 and comes into contact with the cover 8b of the medicine sustained release cartridge 8, and the opening 8b of the cover 8b. 1 Is closed. As a result, outflow of ascorbic acid from the drug sustained release cartridge 8 is prevented when the shower is not used.
When the shower is used, that is, when the water is passed through the bath with a drug slow release function, as shown in the right half of FIGS. 1 4b 2 Due to the water pressure of the tap water flowing through the medicine, the drug slow release cartridge 8 moves downstream against the biasing force of the coil spring 7, and the leg portion 9 d of the guide member 9. 1 9d 2 The tip of the half-moon shaped opening 4b of the valve member 4 1 4b 2 The cover 8b of the drug sustained release cartridge 8 is separated from the valve body 4a of the valve member 4, and the opening 8b of the drug sustained release cartridge 8 is removed. 1 Is released. As shown by the arrows in the right half of FIGS. 1 4b 2 The tap water passed through the leg 9d of the guide member 9 1 9d 2 And slope 9c 1 9c 2 And flow toward the opening 9a. A part of the tap water reaching the opening 9a is divided into the opening 9a and the opening 8b. 1 Through the groove 9b and the remaining portion flows into the annular gap between the drug sustained-release cartridge 8 and the water passage wall.
[0014]
As shown by the arrows in FIGS. 1 and 2, the tap water that has flowed into the drug sustained release cartridge 8 diffuses in the radial direction while proceeding toward the closed end through the center of the drug sustained release cartridge 8 and changes the direction of flow. The flow is changed into a cylindrical flow along the surrounding wall of the medicine sustained-release cartridge 8 and proceeds toward the open end of the medicine sustained-release cartridge 8. Ascorbic acid in the drug sustained release cartridge 8 is dissolved in tap water, and the tap water becomes an ascorbic acid saturated aqueous solution. Ascorbic acid saturated aqueous solution is used for opening 8b of drug sustained release cartridge 8. 1 It flows out to the outside from the peripheral edge, mixes in tap water passing through the groove 9b of the guide member 9, and flows into the annular gap between the drug sustained release cartridge 8 and the water passage wall.
Residual chlorine in tap water is removed by ascorbic acid mixed in tap water. The tap water from which the chlorine odor has been removed passes through the annular gap between the drug sustained release cartridge 8 and the water passage wall, further passes through the lotus root-like bush 6, and is discharged through the water spray porous plate 3.
[0015]
In the bath showerhead with a drug sustained release function according to this embodiment, the opening 8b of the drug sustained release cartridge 8 is used. 1 Is covered with the porous membrane 8c, the tap water gradually flows into the drug sustained release cartridge 8. As a result, the flow of the tap water and the ascorbic acid saturated aqueous solution in the drug sustained release cartridge 8 is stabilized. Since there is no air whose volume changes due to pressure fluctuation in the drug sustained release cartridge 8, the flow of tap water and saturated aqueous ascorbic acid solution in the drug sustained release cartridge 8 is stabilized. Since the drug sustained release cartridge 8 is formed of a hard material and does not deform due to the internal / external pressure difference, the flow of tap water and the saturated aqueous ascorbic acid solution in the drug sustained release cartridge 8 is stabilized. As a result, the saturated ascorbic acid aqueous solution in the drug sustained release cartridge 8 is stably released gradually into the tap water passing through the groove 9b of the guide member 9 without being excessively released during use of the shower.
[0016]
Inclined surface 9c of guide member 9 adhered and fixed to drug sustained release cartridge 8 1 9c 2 And leg 9d 1 9d 2 And the opening 4b of the valve member 4 1 4b 2 Tap water flowing through the opening 8b of the drug sustained release cartridge 8 1 Therefore, when using the shower, tap water surely enters the drug sustained release cartridge 8 and the ascorbic acid in the drug sustained release cartridge 8 is reliably released.
Leg portion 9d of guide member 9 adhered and fixed to drug sustained release cartridge 8 1 9d 2 Is the opening 4b of the valve member 4 1 4b 2 Is always engaged, and functions as a guide when the drug sustained release cartridge 8 moves, so that the opening 8b of the drug sustained release cartridge 8 is provided. 1 And the valve body 4a and the opening 4b of the valve member 4 1 4b 2 Are always kept in a normal relative positional relationship. As a result, the flow of ascorbic acid from the drug sustained release cartridge 8 is reliably prevented when the shower is not used, and ascorbic acid is stably and gradually released from the drug sustained release cartridge 8 when the shower is used.
[0017]
A bath showerhead with a drug sustained release function according to a second embodiment of the present invention will be described with reference to FIGS.
In the bath showerhead with a drug sustained release function according to the present embodiment, an oval opening 8b is formed in a cover 8b made of a hard material that covers the open end of the cylindrical body 8a of the drug sustained release cartridge 8. 1 In addition to the two guide legs 8b extending to the upstream side 2 Is formed. Oval opening 8b 1 Is fitted with an oval porous membrane 8c. At the downstream end of the cylindrical valve member 4, an oval end wall 4a 1 Instead of a circular end wall 4a Three And the end wall 4a Three And oval packing 4a 2 Are bonded and fixed to form the valve body 4a. Opening 4b on both sides of the valve body 4a 1 4b 2 Instead of three openings 4b each Three Is formed. Opening 4b Three Is the oval opening 8b of the cover 8b. 1 The end wall 4a Three It penetrates diagonally. Two grooves 4 c extending in the longitudinal direction are formed on the outer surface of the cylindrical portion of the valve member 4. Guide leg 8b of cover 8b in groove 4c of valve member 4 2 Are engaged. The guide member 9 is not provided. Except for the above, the bath showerhead with a drug sustained release function according to the present embodiment has the same structure as the bath showerhead with a drug sustained release function according to the first embodiment.
[0018]
In the shower head for bath with a drug sustained release function according to the present embodiment, when the shower is not used, that is, when the shower head for bath with a drug sustained release function is stopped, as shown in the left half of FIG. Guide leg 8b 2 Substantially engages with the groove 4c of the valve member 4, the valve body 4a of the valve member 4 contacts the cover 8b of the medicine sustained release cartridge 8, and the opening 8b of the cover 8b. 1 Is closed. As a result, outflow of ascorbic acid from the drug sustained release cartridge 8 is prevented when the shower is not used.
When the shower is used, that is, when the water is passed through the shower head for bathing with a drug sustained release function, as shown in the right half part of FIG. Three Due to the pressure of the tap water flowing through the medicine, the drug sustained release cartridge 8 moves downstream against the urging force of the coil spring, and the guide leg 8b of the cover 8b. 2 Is engaged with the groove 4c of the valve member 4, the cover 8b of the drug sustained release cartridge 8 is separated from the valve body 4a of the valve member 4, and the opening 8b of the drug sustained release cartridge 8 is removed. 1 Is released. As shown by the arrow in the right half of FIG. 6, the opening 8b of the drug sustained release cartridge 8 1 Opening 4b of valve member 4 directed to Three The tap water passed through the opening 8b of the drug sustained release cartridge 8 1 Partly to the opening 8b 1 And flows into the medicine sustained release cartridge 8, and the remaining part flows radially outward along the cover 8 b and flows into the annular gap between the medicine sustained release cartridge 8 and the water passage wall. A saturated aqueous solution of ascorbic acid in the drug sustained release cartridge 8 opens 8b. 1 It flows out from the peripheral edge of the water, enters the tap water flowing radially outward along the cover 8b, and flows into the annular gap between the drug sustained release cartridge 8 and the water passage wall. Residual chlorine in tap water is removed by ascorbic acid mixed in tap water. The tap water from which the chlorine odor has been removed passes through the annular gap between the drug sustained release cartridge 8 and the water passage wall, passes through the lotus-like bush, and is discharged through the sprinkling perforated plate.
[0019]
Opening 8b of drug sustained release cartridge 8 1 Opening 4b of valve member 4 directed to Three However, the tap water is opened 8b of the drug sustained release cartridge 8 1 Therefore, when using the shower, tap water surely enters the drug sustained release cartridge 8 and the ascorbic acid in the drug sustained release cartridge 8 is reliably released.
Guide leg 8b of cover 8 adhered and fixed to drug sustained release cartridge 8 2 Always engages with the groove 4c of the valve member 4 and functions as a guide when the drug sustained release cartridge 8 moves. 1 And the valve body 4a and the opening 4b of the valve member 4 Three Are always kept in a normal relative positional relationship. As a result, the flow of ascorbic acid from the drug sustained release cartridge 8 is reliably prevented when the shower is not used, and ascorbic acid is stably and gradually released from the drug sustained release cartridge 8 when the shower is used.
[0020]
As mentioned above, although the Example of this invention was described, this invention is not limited to the said Example.
The shower head with a drug sustained release function according to the present invention is not limited to a bath shower head. The shower head with a drug sustained release function according to the present invention also includes a water discharge nozzle for cleaning an instrument with a drug slow release function, a water discharge nozzle for a car wash with a drug slow release function, and the like. A drug sustained release cartridge attached to a water discharge nozzle for cleaning an instrument with a drug sustained release function and a car water discharge nozzle with a drug sustained release function is filled with a cleaning agent such as a surfactant.
The drug filled in the drug sustained-release cartridge is not limited to ascorbic acid. Powdered, granular, liquid herbs, fragrances, bactericides, herbal medicines, emulsions, pH adjusters, cleaning agents, surfactants, and the like may be filled.
[0021]
【The invention's effect】
As can be seen from the above description, in the shower head with a sustained drug release function according to the present invention, when the shower is not used, that is, when the shower head is stopped, the sustained drug release cartridge biased by the biasing means moves upstream. The end of the cartridge moves to contact the valve body of the valve member, and the opening of the sustained-release drug cartridge is closed by the valve body, thereby preventing the drug from flowing out from the sustained-release drug cartridge.
During use of the shower, that is, when water is passed through the shower head, the drug sustained release cartridge moves downstream against the urging force of the urging means by the water pressure of the water flowing through the opening of the valve member. The end portion is separated from the valve body of the valve member, and the opening of the drug sustained release cartridge is opened. Water enters the drug sustained-release cartridge from the water passage of the showerhead through the opening of the drug sustained-release cartridge, and the water-soluble liquid drug or the saturated aqueous solution of the water-soluble drug in the drug sustained-release cartridge is It is discharged through the opening into the water passage of the shower head. The opening of the drug sustained-release cartridge is covered with a porous film, and there is no air whose volume changes due to pressure fluctuation in the drug sustained-release cartridge. The drug sustained-release cartridge is formed of a hard material and is applied with external pressure. Therefore, the flow of water in the drug sustained-release cartridge and the water-soluble liquid drug or the saturated aqueous solution of the water-soluble drug is stabilized. As a result, the water-soluble liquid medicine in the medicine sustained-release cartridge or the saturated aqueous solution of the water-soluble medicine is gradually discharged into the water flowing through the water passage of the shower head without being excessively released during use of the shower. Released.
[0022]
By attaching a guide member that guides the water flowing through the opening of the valve member to the opening of the drug sustained release cartridge to the drug sustained release cartridge, the water is surely intruded into the drug sustained release cartridge at the time of shower use. The drug in the cartridge can be surely and slowly released.
By constantly engaging the guide member attached to the drug sustained release cartridge with the opening of the valve member and functioning as a guide when the drug sustained release cartridge moves, the opening of the drug sustained release cartridge and the valve body of the valve member, opening Is always maintained in a normal relative positional relationship, and the medicine is surely prevented from flowing out of the medicine sustained release cartridge when the shower is not used, and the medicine is stably and gradually released from the medicine sustained release cartridge when the shower is used.
[0023]
By directing the opening of the valve member to the opening of the drug sustained-release cartridge, water can surely enter the drug sustained-release cartridge during shower use, and the drug in the drug sustained-release cartridge can be surely gradually released. .
By attaching a guide member that is always engaged with the valve member to the drug sustained release cartridge and functioning as a guide when the drug sustained release cartridge moves, the opening of the drug sustained release cartridge and the valve body and opening of the valve member are The normal relative positional relationship is always maintained, and the loss of the drug from the drug material sustained release cartridge is surely prevented when the shower is not used, and the drug is stably and gradually released from the drug sustained release cartridge when the shower is used.
[0024]
By filling the drug sustained-release cartridge with ascorbic acid and a saturated aqueous solution of ascorbic acid, residual chlorine can be removed from tap water sprayed from the shower head, and the comfort of the shower user can be increased.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a bath shower head with a drug sustained release function according to a first embodiment of the present invention.
FIG. 2 is a partially enlarged view of the vicinity of the upstream end of FIG.
FIG. 3 is a structural diagram of a valve member provided in a bath showerhead with a drug sustained release function according to a first embodiment of the present invention. (A) is a figure which shows the end surface of a downstream side, (b) is a bb arrow directional view of (a), (c) is a cc arrow directional view of (a), (d ) Is a view showing an end face on the upstream side.
FIG. 4 is a structural diagram of a cover of a drug sustained release cartridge provided in a bath showerhead with a drug sustained release function according to a first embodiment of the present invention. (A) is a figure which shows an end surface, (b) is a bb arrow line view of (a).
FIG. 5 is a structural diagram of a guide member provided in a bath shower head with a drug sustained release function according to a first embodiment of the present invention. (A) is a figure which shows the end surface of a downstream side, (b) is a bb arrow directional view of (a), (c) is a cc arrow directional view of (a), (d ) Is a view showing an end face on the upstream side.
FIG. 6 is an enlarged longitudinal sectional view in the vicinity of an upstream end of a bath shower head with a drug sustained release function according to a second embodiment of the present invention.
FIG. 7 is a perspective view of a valve member provided in a bath showerhead with a sustained drug release function according to a second embodiment of the present invention.
FIG. 8 is a perspective view of a cover of a drug sustained release cartridge provided in a bath shower head with a drug sustained release function according to a second embodiment of the present invention.
[Explanation of symbols]
1 1st cylinder
2 Second cylinder
3 Sprinkling perforated plates
4 Valve members
4a Disc
4b 1 4b 2 4b Three Opening
4c groove
7 Coil spring
8. Drug sustained release cartridge
8a cylinder
8b cover
8b 1 Opening
8b 2 Guide leg
8c porous membrane
9 Guide members
9a opening
9c 1 9c 2 Inclined surface
9d 1 9d 2 leg

Claims (6)

一端が閉鎖され他端に開口が形成された硬質材から成る筒体容器内に水溶性の液状の薬剤又は水溶性の薬剤と該薬剤の飽和水溶液とが充填され、筒体容器内に空気層を含まず、開口が多孔質膜によって覆われた薬剤徐放カートリッジと、シャワーヘッドとを備え、薬剤徐放カートリッジは開口を上流側へ向けてシャワーヘッドの通水路内に配設され、薬剤徐放カートリッジと通水路壁との間に環状隙間が形成され、更に、薬剤徐放カートリッジを上流側ヘ付勢する付勢手段と、シャワーヘッドの通水路内に且つ薬剤徐放カートリッジの上流に配設され前記通水路を塞ぐ弁部材とを備え、弁部材には薬剤徐放カートリッジの開口に対峙する弁体と弁体の近傍に配設された開口とが形成され、シャワーヘッドの止水時に薬剤徐放カートリッジの前記他端が弁部材の弁体に当接して開口が弁体によって閉鎖され、シャワーヘッドの通水時に弁部材の開口を通って流れる水の水圧によって薬剤徐放カートリッジが下流側へ移動し薬剤徐放カートリッジの前記他端が弁部材の弁体から離れて薬剤徐放カートリッジの開口が開放されることを特徴とする薬剤徐放機能付シャワーヘッド。A cylindrical container made of a hard material having one end closed and an opening formed at the other end is filled with a water-soluble liquid drug or a water-soluble drug and a saturated aqueous solution of the drug, and an air layer is formed in the cylinder container. A medicine sustained release cartridge whose opening is covered with a porous membrane and a shower head, and the medicine sustained release cartridge is disposed in the water passage of the shower head with the opening facing upstream, An annular gap is formed between the discharge cartridge and the water passage wall, and is further provided with an urging means for urging the drug sustained release cartridge to the upstream side, and in the water passage of the shower head and upstream of the drug sustained release cartridge. And a valve member that closes the water passage. The valve member is formed with a valve body facing the opening of the sustained-release drug cartridge and an opening disposed in the vicinity of the valve body. Before drug release cartridge The other end is closed by contact with opening the valve body to the valve body of a valve member, the pressure of water flowing through the opening of the valve member in water passing through the shower head to move the drug sustained-release cartridge downstream drug Xu A shower head with a sustained drug release function, wherein the other end of the release cartridge is separated from the valve body of the valve member and the opening of the sustained drug release cartridge is opened. 薬剤徐放カートリッジに、弁部材の開口を通って流れる水を薬剤徐放カートリッジの開口ヘ導く案内部材が取り付けられていることを特徴とする請求項1に記載の薬剤徐放機能付シャワーヘッド。The shower head with a medicine sustained release function according to claim 1, wherein a guide member for guiding water flowing through the opening of the valve member to the opening of the medicine sustained release cartridge is attached to the medicine sustained release cartridge. 前記案内部材が弁部材の開口に常時係合していることを特徴とする請求項2に記載の薬剤徐放機能付シャワーヘッド。The shower head with a medicine sustained-release function according to claim 2, wherein the guide member is always engaged with the opening of the valve member. 弁部材の開口が、薬剤徐放カートリッジの開口へ差し向けられていることを特徴とする請求項1に記載の薬剤徐放機能付シャワーヘッド。The shower head with a medicine sustained-release function according to claim 1, wherein the opening of the valve member is directed to the opening of the medicine sustained-release cartridge. 薬剤徐放カートリッジに、弁部材に常時係合する案内部材が取り付けられていることを特徴とする請求項4に記載の薬剤徐放機能付シャワーヘッド。5. The shower head with a sustained drug release function according to claim 4, wherein a guide member that is always engaged with the valve member is attached to the sustained drug release cartridge. 薬剤徐放カートリッジに充填された薬剤がアスコルビン酸であることを特徴とする請求項1乃至5の何れか1項に記載の薬剤徐放機能付シャワーヘッド。6. The shower head with a sustained drug release function according to claim 1, wherein the drug filled in the sustained drug release cartridge is ascorbic acid.
JP08942897A 1997-04-08 1997-04-08 Shower head with sustained drug release function Expired - Lifetime JP3823428B2 (en)

Priority Applications (1)

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JP08942897A JP3823428B2 (en) 1997-04-08 1997-04-08 Shower head with sustained drug release function

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JP08942897A JP3823428B2 (en) 1997-04-08 1997-04-08 Shower head with sustained drug release function

Related Child Applications (1)

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JP2000050654A Division JP2000210222A (en) 2000-01-01 2000-02-28 Shower head mixing medicine

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JPH10276926A JPH10276926A (en) 1998-10-20
JP3823428B2 true JP3823428B2 (en) 2006-09-20

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JP4081524B2 (en) * 1998-03-31 2008-04-30 株式会社マーレ フィルターシステムズ Method of filling medicine into cartridge for medicine supply shower and cartridge
JP4087004B2 (en) * 1998-03-31 2008-05-14 株式会社マーレ フィルターシステムズ Drug supply device
JP4045686B2 (en) * 1999-03-17 2008-02-13 Toto株式会社 Drug sustained release cartridge
JP3909635B2 (en) * 1999-07-29 2007-04-25 東陶機器株式会社 Water discharge device
AU6317300A (en) * 1999-08-03 2001-02-19 Takayasu Okubo Water feeder with mixed solution sustained-releasing function
EP1518607A1 (en) * 2003-09-23 2005-03-30 Takayasu Okubo Feed device for adding a chemical substance to tap water
JP2006174891A (en) * 2004-12-21 2006-07-06 Toto Ltd Shower head
JP6668168B2 (en) * 2016-04-07 2020-03-18 株式会社ホットアルバム炭酸泉タブレット Tablet manufacturing method and tablets
CN108640297B (en) * 2018-04-03 2024-02-09 茂名众和国颂水处理技术有限公司 Suspension type water treatment agent slow release sleeve

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JPH0824842A (en) * 1994-07-14 1996-01-30 Toray Ind Inc Water purifier and shower device
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