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JP4264481B2 - Shower head for clean water shower - Google Patents
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JP4264481B2 - Shower head for clean water shower - Google Patents

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Publication number
JP4264481B2
JP4264481B2 JP35842397A JP35842397A JP4264481B2 JP 4264481 B2 JP4264481 B2 JP 4264481B2 JP 35842397 A JP35842397 A JP 35842397A JP 35842397 A JP35842397 A JP 35842397A JP 4264481 B2 JP4264481 B2 JP 4264481B2
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Japan
Prior art keywords
cartridge
water
shower
head
upper lid
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JP35842397A
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JPH11179244A (en
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美江 谷崎
和彦 松林
温子 西
善幸 小林
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Mitsubishi Chemical Corp
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Mitsubishi Chemical Corp
Mitsubishi Rayon Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、浴室等に設置され、水道水中の塩素を除去した浄水を噴出する浄水シャワー用シャワーヘッドに関する。
【0002】
【従来の技術】
一般家庭の浴室等で使用されるシャワーに供給される原水は、通常、水道水であり、この水道水には塩素が多く含まれている。この塩素を多く含む水道水を使用して頻繁に頭髪や身体をシャワーで洗浄した場合、毛髪の傷みや変色、肌荒れなどの問題が生ずる。
【0003】
この問題の解決手段として、シャワーに供給される原水中の塩素を除去する浄水機能を備えた浄水シャワー等が提案されている。これら浄水シャワーとしては、例えば、亜硫酸カルシウムなどの脱塩素剤を内部に充填したシャワーヘッドを用いる浄水シャワー等が挙げられる。
【0004】
図5は、従来の浄水シャワー用シャワーヘッドの一例を示す断面図である。この浄水シャワー用シャワーヘッドは、浄水を噴出する噴出口2を有する頭部1と、この頭部1に先端部4がねじ込み式に着脱可能に連結され、シャワーホースに基端部5がねじ込み式に着脱可能に連結される胴部3と、この胴部3内に着脱可能に隙間なく収容され、内部に原水中の塩素を除去する濾材7を収めたカートリッジ6とから構成され、頭部1と胴部3との接続部、および胴部3とシャワーホースの接続部には、それぞれOリング20およびOリング21が設けられている。そして、上記カートリッジ6は、浄水の出口となる浄水開口部9と吐水管10が形成された上蓋部8と、筒部11と、原水の入口となる原水開口部13が形成された底蓋部12とから構成される。また、図6は濾材7の一例を示す断面図であり、濾材7としては、粉末の亜硫酸カルシウム等の脱塩素剤17を不織布シート18に包み、この厚さ2〜3mm程度のシートをロール状に巻いたものが用いられる。
【0005】
原水は、シャワーホースを通り、基底部5から浄水シャワー用シャワーヘッドに供給され、底蓋部12の原水開口部13よりカートリッジ6内部に導入される。カートリッジ6内に導入された原水は、濾材7中を通過し、この通過中に原水中の塩素が除去される。原水から塩素を除去された浄水は、上蓋部8の浄水開口部9および吐水管10よりカートリッジ6外部に吐出されると同時に頭部1に供給され、頭部1内を通過して噴出口2より噴出する。
【0006】
しかしながら、このような浄水シャワー用シャワーヘッドにあっては、胴部3のカートリッジ収容空間の内径と、カートリッジ6の筒部11の外径とがほぼ同じ大きさであり、かつ胴部3のカートリッジ収容空間の長手方向の長さと、カートリッジ6の外壁の長手方向の長さとがほぼ同じ長さで、カートリッジ6の上蓋部8と頭部1の連結端部14とが密着しているため、供給されたすべての原水はカートリッジ6内部を通過する。そのため、供給された原水の水圧のほとんどが濾材7にかかり、この水圧で濾材7が潰れてしまうという問題がある。
【0007】
また、濾材7中の脱塩素剤17としては、亜硫酸カルシウムが脱塩素能に優れる点から好適に用いられているが、脱塩素剤17に亜硫酸カルシウムを用いた場合、浄水中に過剰の脱塩素剤17が離脱してしまい、脱塩素剤17が有効に使用されず、濾材7の寿命が短くなるという欠点もある。
【0008】
【発明が解決しようとする課題】
よって、本発明における課題は、カートリッジ内の濾材の潰れを防止し、さらに濾材の寿命を向上することができる浄水シャワー用シャワーヘッドを提供することにある。
【0009】
【課題を解決するための手段】
かかる課題は、浄水シャワー用シャワーヘッドとして、
浄水を噴出する噴出口を有する頭部と、この頭部に先端部が着脱可能に連結され、基端部がシャワーホースに着脱可能に連結される胴部と、この胴部内に着脱可能に収容され、内部に原水中の塩素を除去する濾材を収めたカートリッジとからなり、
上記カートリッジが、浄水の出口となる浄水開口部が形成された上蓋部と、筒部と、原水の入口となる原水開口部が形成された底蓋部とからなり、
上記上蓋部の外面には、上記頭部の連結端部に当接し、連結端部と上蓋部との間に流路を形成する上部突起が中心から放射状に設けられ、
上記上蓋部の内面には、上記濾材に当接する板状の下部突起が中心から放射状に設けられており、
上記カートリッジの外壁の長手方向の長さが、上記胴部のカートリッジ収容空間の長手方向の長さよりも微かに短くされ、
上記カートリッジの筒部の外径が、上記胴部のカートリッジ収容空間の内径よりも、筒部と胴部のカートリッジ収納空間の内壁との間に原水の流路を形成するように小さくされたものを用いることによって解決される。
また、前記上蓋部の中心に吐水管が設けられ、前記上部突起の形状は、吐水管の途中から浄水開口部に向けて徐々に広がるリブ状のものであることが好ましい。
【0010】
【発明の実施の形態】
以下、本発明を詳しく説明する。
図1は、本発明の浄水シャワー用シャワーヘッドの一例を示す断面図である。この浄水シャワー用シャワーヘッドは、浄水を噴出する噴出口2を有する頭部1と、この頭部1に先端部4がねじ込み式に着脱可能に連結され、基端部5がシャワーホースにねじ込み式に着脱可能に連結される胴部3と、この胴部3内に着脱可能に収容され、内部に原水中の塩素を除去する濾材7を収めたカートリッジ6とから構成され、頭部1と胴部3との接続部、および胴部3とシャワーホースの接続部には、それぞれOリング20およびOリング21が設けられている。
【0011】
上記カートリッジ6は、浄水の出口となる浄水開口部9と吐水管10が形成された上蓋部8と、筒部11と、原水の入口となる原水開口部13が形成された底蓋部12とから構成される。この上蓋部8の外面には、上記頭部1の連結端部14に当接し、連結端部14と上蓋部8との間に原水の流路を形成するように上部突起15が設けられている。また、上記上蓋部8の内面には、濾材7と上蓋部8との接触面積を小さくするように下部突起16が設けられている。
【0012】
また、上記カートリッジ6の外壁の長手方向の長さは、上記胴部3のカートリッジ収納空間の長手方向よりも微かに短くされており、浄水シャワー用シャワーヘッドに原水が供給され、カートリッジ6に水圧がかかったとき、カートリッジ6全体が上方に水圧によって移動し、カートリッジ6の底蓋部12と胴部3のカートリッジ収納底部19との間に原水の流路が形成されるようになっている。ここで、上記カートリッジ6の外壁の長手方向の長さとは、筒部11の外壁の長手方向の長さに、上蓋部8の外縁部側面の長さと上部突起15の高さとを加えた長さであり、上記胴部3のカートリッジ収納空間の長手方向の長さとは、頭部1の連結端部14から胴部3のカートリッジ収納底部19までの長さである。
【0013】
さらに、上記カートリッジ6の筒部11の外径は、筒部11と胴部3のカートリッジ収納空間の内壁との間に原水の流路を形成するように、カートリッジ収納空間の内径よりも微かに小さくされている。
【0014】
上記カートリッジ6の外壁の長手方向の長さは、上記胴部3のカートリッジ収納空間の長手方向の長さより0.1mm〜2mm短く設定され、この短く設定される長さが0.1mm未満では、カートリッジ6の底蓋部12と胴部3のカートリッジ収納底部19との間を流れる原水の流量が不十分となり、2mmを越えると、前述した原水の流量が多くなりすぎるため好ましくない。
また、上記カートリッジ6の筒部11の外径は、上記胴部3のカートリッジ収納空間の内径より0.1mm〜2mm小さく設定され、この差が0.1mm未満では、筒部11と胴部3のカートリッジ収納空間の内壁との間を流れる原水の流量が不十分となり、2mmを越えると、前述した原水の流量が多くなりすぎるため好ましくない。
【0015】
図2ないし4は、上記上蓋部8の一例を示す図である。
上記上蓋部8は、円盤状の上蓋部8の中心から垂直方向に設けられた円筒状の吐水管10と、吐水管10の周囲に同心円状に設けられた浄水開口部9と、上蓋部8外面の中心から放射状に6箇所設けられた上部突起15と、上蓋部8内面の中心から放射状に6箇所設けられた板状の下部突起16とから構成される。
【0016】
上記上部突起15は、上記吐水管10の途中から浄水開口部9に向けて徐々に拡がるリブ状のものであって、吐水管10の固定、上蓋部8の補強の点からこの形状のものが好ましいが、連結端部14と上蓋部8との間に空隙を形成できる形状であれば、その形状は特に限定されない。上部突起15の他の形状としては、例えば、円柱、円錐、角柱、角錐、円錐台、角錐台状の突起などが挙げられる。
【0017】
上記上部突起15と連結端部14との接触点は、上蓋部8外面の表面上に少なくとも1箇所以上設ける必要があり、連結端部14と上部突起15の接触点にかかる圧力を分散させるためには、連結端部14と上部突起15の接触点を3箇所以上設けることが好ましく、より好ましくは6箇所以上設けるとよい。また、上部突起15の高さ、すなわち連結端部14と上蓋部8との空隙の幅は、流路が形成される幅があればよく、特に限定されないが、0.1〜2mmの範囲が好ましい。空隙の幅が0.1mm未満では、十分な流路が確保できず、2mmを越えるとカートリッジ6外部を流れる原水の流量が多くなりすぎるため好ましくない。より好ましくは0.5〜1mmの範囲である。
【0018】
上記下部突起16は、濾材7と上蓋部8との接触面積を小さくし、通水時に濾材7にかかる圧力を分散させ、濾材7の潰れを防止するために設けられる。
上記下部突起16の形状は、濾材7にかかる圧力を分散させる形状であればよく、特に限定はされないが、上記の板状のものが圧力を効率よく分散できる点で好ましい。また、下部突起16の高さは、特に限定されないが、例えば、1〜10mmの範囲とされる。下部突起16の高さが1mm未満では、圧力分散の効果が十分でなく、10mmを越えると濾材7の収納空間が減少するため好ましくない。好ましくは3〜5mmの範囲である。
【0019】
上記浄水開口部9の形状は、浄水がカートリッジ6より吐出される形状であればよく、特に上記の形状に限定されるものではない。また、上記吐水管10の形状も、浄水がカートリッジ6より吐出される形状であればよく、特に限定はされない。さらに、浄水開口部9が十分な吐水能力を有していれば、吐水管10を上蓋部8に設けなくともよい。
【0020】
上記筒部11の形状は、シャワーヘッドの胴部3内のカートリッジ収納空間の形状によって設定されるものであり、特に限定はされないが、円筒形のものが強度などの点で好ましい。
また、上記底蓋部12および原水開口部13の形状も、原水がカートリッジ6内に導入される形状であればよく、特に限定はされない。
【0021】
上記上蓋部8、底蓋部12の材質としては、加工性等を考慮して、ABS樹脂、ポリプロピレン、ポリエチレン等のプラスチックを用いることが好ましい。
上記筒部11の材質としては、AS樹脂(スチレン−アクリロニトリル共重合体)、ABS樹脂、ポリカーボネート等のプラスチックを用いることが好ましく、また、カートリッジ6内の濾材7の汚れ、潰れ等の状態の確認ができる点で、透明部材で形成されることが好ましい。
【0022】
上記濾材7としては、原水中の塩素を除去するものであればよく、特に限定はされないが、例えば、図6に一部断面図を示すような、粉末の脱塩素剤17を不織布シート18に包んで四方で封止したもの、脱塩素剤17を錠剤状に成形したものなどが挙げられる。中でも、脱塩素剤17が通水により流失しにくい点で、脱塩素剤17を不織布シート18で包んだものが好適に用いられる。
【0023】
この不織布シート18を2枚重ね、幅5mm、奥行き25mm、高さ1mm程度の空間に脱塩素剤17を充填した小部屋を2〜3mmの間隔を空けて1シート上に30〜50箇所程度設け、この脱塩素剤17の充填された厚さ2〜3mm程度のシートをロール状に巻いて上記濾材7とされる。
また、脱塩素剤17としては、亜硫酸カルシウム、アスコルビン酸、活性炭等が挙げられるが、脱塩素性能の点から、亜硫酸カルシウムが好適に用いられる。
【0024】
上記頭部1、胴部3の材質としては、特に限定はされないが、例えば、プラスチック、金属等が挙げられる。中でも、耐圧性、加工性を考慮して、ABS樹脂等のプラスチックを用いることが望ましい。
【0025】
このような浄水シャワー用シャワーヘッドにあっては、カートリッジ6の上蓋部8に頭部1の連結端部14と当接する上部突起15が設けられており、また、カートリッジ6の外壁の長手方向の長さが胴部3のカートリッジ収納空間の長手方向よりも微かに短くされており、さらに、カートリッジ6の筒部11の外径が胴部3のカートリッジ収納空間の内径よりも微かに小さくされている。そのため、浄水シャワー用シャワーヘッドに原水が供給されると、カートリッジ6の外部に原水の流路(バイパス)が形成され、供給された原水の一部がこのバイパスを通り、カートリッジ6内部にかかる水圧が分散されるため、濾材7にかかる水圧が減少し、濾材7の潰れを防止することができる。
【0026】
また、バイパスを通った原水とカートリッジ6内を通った浄水とが頭部1内で混合され、ここで濾材7から浄水中に離脱した未反応の脱塩素剤17によりバイパスを通った原水中の残留塩素が除去されるので、頭部1の噴出口2から噴出される浄水に塩素が残留することがない。そして、従来に比べ脱塩素剤17が効率よく使用されるので、濾材7の寿命を延ばすことができる。
さらに、カートリッジ6の上蓋部8の内面には、濾材7と上蓋部8との接触面積を小さくする下部突起16が設けられているので、濾材7にかかる水圧を分散させることができ、濾材7の潰れを防止することができる。
【0027】
【実施例】
以下、実施例を示す。
(実施例)
浄水を噴出する噴出口を有する頭部と、この頭部に着脱可能に連結され、シャワーホースに着脱可能に連結される胴部と、この胴部内に着脱可能に収容され、内部に原水中の塩素を除去する濾材を収めたカートリッジとから構成される浄水シャワー用シャワーヘッドを用意した。
【0028】
上記カートリッジの外壁の長手方向の長さは、135mmであり、上蓋部の直径は32mm、底蓋部の直径は25.7mmである。また、上記カートリッジには、上蓋部の外面に1mmの上部突起、上蓋部の内面に4.5mm下部突起を設け、また、上記カートリッジの外壁の長手方向の長さを上記胴部のカートリッジ収納空間の長手方向よりも1.0mm短く設定し、さらに、上記カートリッジの筒部の外径を胴部のカートリッジ収納空間の内径よりも上蓋部で0.4mm、底蓋部で0.6mm小さく設定して、カートリッジ外部に原水の一部を流すバイパスが形成できるようにした。
上記濾材としては、粉末の亜硫酸カルシウム20gを不織布シートに包み、これをロール状に巻いたものを使用した。
【0029】
この浄水シャワーヘッドをシャワーホースに連結し、水温40℃、塩素濃度0.5ppmの原水を0.01m3 /分で通水し、噴出口より噴出される浄水中の残留塩素濃度を15分間隔で測定し、濾材の寿命までの総通水量を測定した。ここで、濾材の寿命は、浄水中の残留塩素濃度が0.15ppmを越えた時点とした。
測定の結果、図7に示すように濾材の寿命までの総通水量は7m3 であった。また、この寿命測定試験とは別に、60℃の温水を4.5kgf/cm2 の圧力で7m3 通水し、濾材の潰れ具合を目視にて確認したところ、濾材はほとんど潰れていなかった。
【0030】
(比較例)
上記カートリッジに上蓋部の外面に上部突起、上蓋部の内面に下部突起を設けず、また、上記カートリッジの外壁の長手方向の長さを上記胴部のカートリッジ収納空間の長手方向の長さと同じにし、さらに、上記カートリッジの筒部の外径を胴部のカートリッジ収納空間の内径と同じにして、供給されたすべての原水がカートリッジ内を流れるようにした以外は実施例と同じ浄水シャワー用シャワーヘッドを用意した。
【0031】
この浄水シャワーヘッドをシャワーホースに連結し、水温40℃、塩素濃度0.5ppmの原水を0.01m3 /分で通水し、噴出口より噴出される浄水中の残留塩素濃度を15分間隔で測定し、濾材の寿命までの総通水量を測定した。ここで、濾材の寿命は、浄水中の残留塩素濃度が0.15ppmを越えた時点とした。
測定の結果、図7に示すように濾材の寿命までの総通水量は6m3 であった。また、この寿命測定試験とは別に、60℃の温水を4.5kgf/cm2 の圧力で1m3 通水し、濾材の潰れ具合を目視にて確認したところ、濾材の潰れが確認されるとともに、吐水量も低下していた。
【0032】
【発明の効果】
以上説明したように、本発明の浄水シャワー用シャワーヘッドにあっては、カートリッジ内の濾材にかかる水圧を減らしているので、濾材の潰れを防止することができる。また、カートリッジより吐出される浄水中の未反応の脱塩素剤を効率よく使用できるので、濾材の寿命を延ばすこともできる。
【図面の簡単な説明】
【図1】 本発明の浄水シャワー用シャワーヘッドの一例を示した断面図である。
【図2】 本発明の浄水シャワー用シャワーヘッドのカートリッジ上蓋部の一例を示した断面図である。
【図3】 本発明の浄水シャワー用シャワーヘッドのカートリッジ上蓋部の一例を示した上面図である。
【図4】 本発明の浄水シャワー用シャワーヘッドのカートリッジ上蓋部の一例を示した下面図である。
【図5】 従来の浄水シャワー用シャワーヘッドの一例を示した断面図である。
【図6】 濾材の一例を示した断面図である。
【図7】 本発明および従来の浄水シャワー用シャワーヘッドの塩素除去能を示したグラフであり、縦軸は浄水中の残留塩素濃度(ppm)、横軸は通水量(m3)である。
【符号の説明】
1・・・頭部、2・・・噴出口、3・・・胴部、4・・・先端部、5・・・基端部、6・・・カートリッジ、7・・・濾材、8・・・上蓋部、9・・・浄水開口部、11・・・筒部、12・・・ 底蓋部、13・・・原水開口部、14・・・連結端部、15・・・上部突起、16・・・下部突起
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shower head for a purified water shower that is installed in a bathroom or the like and ejects purified water from which chlorine in tap water is removed.
[0002]
[Prior art]
The raw water supplied to the shower used in a general household bathroom is usually tap water, and this tap water contains a lot of chlorine. When the hair and body are frequently washed in the shower using this chlorine-containing tap water, problems such as hair damage, discoloration, and rough skin occur.
[0003]
As means for solving this problem, a water purification shower or the like having a water purification function for removing chlorine in raw water supplied to the shower has been proposed. Examples of these water purification showers include water purification showers using a shower head filled with a dechlorinating agent such as calcium sulfite.
[0004]
FIG. 5 is a cross-sectional view showing an example of a conventional shower head for water purification shower. This shower head for water purification shower has a head 1 having a spout 2 for jetting purified water, a distal end portion 4 detachably connected to the head 1 and a base end portion 5 screwed to the shower hose. And a cartridge 6 that is removably connected to the body 3 without a gap and contains a filter medium 7 for removing chlorine in the raw water. An O-ring 20 and an O-ring 21 are provided at a connection portion between the body portion 3 and the body portion 3 and a connection portion between the body portion 3 and the shower hose, respectively. The cartridge 6 has a purified water opening 9 serving as an outlet for purified water, an upper lid portion 8 formed with a water discharge pipe 10, a cylindrical portion 11, and a bottom lid portion formed with a raw water opening 13 serving as an inlet for raw water. 12. FIG. 6 is a cross-sectional view showing an example of the filter medium 7. As the filter medium 7, a non-chlorine agent 17 such as powdered calcium sulfite is wrapped in a non-woven sheet 18, and a sheet having a thickness of about 2 to 3 mm is rolled. Wound around is used.
[0005]
The raw water passes through the shower hose, is supplied from the base portion 5 to the shower head for clean water shower, and is introduced into the cartridge 6 from the raw water opening 13 of the bottom lid portion 12. The raw water introduced into the cartridge 6 passes through the filter medium 7, and chlorine in the raw water is removed during the passage. The purified water from which chlorine has been removed from the raw water is discharged to the outside of the cartridge 6 from the purified water opening 9 and the water discharge pipe 10 of the upper lid portion 8 and simultaneously supplied to the head 1, passes through the head 1, and is ejected from the jet 2. More erupts.
[0006]
However, in such a shower head for water purification shower, the inner diameter of the cartridge housing space of the barrel portion 3 and the outer diameter of the cylindrical portion 11 of the cartridge 6 are approximately the same size, and the cartridge of the barrel portion 3 Since the length in the longitudinal direction of the housing space and the length in the longitudinal direction of the outer wall of the cartridge 6 are substantially the same length, the upper lid portion 8 of the cartridge 6 and the connecting end portion 14 of the head 1 are in close contact with each other. All the raw water thus passed passes through the inside of the cartridge 6. Therefore, most of the water pressure of the supplied raw water is applied to the filter medium 7, and there is a problem that the filter medium 7 is crushed by this water pressure.
[0007]
In addition, calcium sulfite is preferably used as the dechlorination agent 17 in the filter medium 7 because it is excellent in dechlorination ability. However, when calcium sulfite is used as the dechlorination agent 17, excessive dechlorination in the purified water. The agent 17 is detached, and the dechlorination agent 17 is not used effectively, and there is a disadvantage that the life of the filter medium 7 is shortened.
[0008]
[Problems to be solved by the invention]
Therefore, the subject in this invention is providing the shower head for a purified water shower which can prevent the filter medium in a cartridge to be crushed and can improve the lifetime of a filter medium.
[0009]
[Means for Solving the Problems]
Such a problem is as a shower head for water purification shower.
A head having a spout for ejecting purified water, a body having a distal end detachably connected to the head, a base end removably connected to a shower hose, and a detachable housing in the body And a cartridge containing a filter medium for removing chlorine in the raw water inside,
The cartridge is composed of an upper lid portion formed with a purified water opening serving as an outlet for purified water, a cylindrical portion, and a bottom lid portion formed with a raw water opening serving as an inlet for raw water,
On the outer surface of the upper lid portion, upper projections that are in contact with the coupling end portion of the head and form a flow path between the coupling end portion and the upper lid portion are provided radially from the center ,
On the inner surface of the upper lid portion, plate-like lower protrusions that come into contact with the filter medium are provided radially from the center ,
The longitudinal length of the outer wall of the cartridge is slightly shorter than the longitudinal length of the cartridge housing space of the barrel,
The outer diameter of the cylindrical portion of the cartridge is smaller than the inner diameter of the cartridge housing space of the barrel so as to form a flow path of raw water between the barrel and the inner wall of the cartridge housing space of the barrel. It is solved by using.
Moreover, it is preferable that a water discharge pipe is provided at the center of the upper lid part, and the shape of the upper protrusion is a rib-like thing gradually spreading from the middle of the water discharge pipe toward the water purification opening.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail.
FIG. 1 is a cross-sectional view showing an example of a shower head for water purification shower according to the present invention. This shower head for water purification shower has a head 1 having a spout 2 for jetting purified water, a distal end portion 4 removably connected to the head 1 and a base end portion 5 screwed into a shower hose. A body 3 that is detachably connected to the body, and a cartridge 6 that is detachably accommodated in the body 3 and contains a filter medium 7 that removes chlorine in the raw water. An O-ring 20 and an O-ring 21 are provided at the connecting portion with the portion 3 and at the connecting portion between the trunk portion 3 and the shower hose, respectively.
[0011]
The cartridge 6 includes a purified water opening 9 serving as a purified water outlet, an upper lid portion 8 formed with a water discharge pipe 10, a cylindrical portion 11, and a bottom lid portion 12 formed with a raw water opening 13 serving as a raw water inlet. Consists of An upper protrusion 15 is provided on the outer surface of the upper lid portion 8 so as to contact the connecting end portion 14 of the head 1 and form a flow path of raw water between the connecting end portion 14 and the upper lid portion 8. Yes. A lower projection 16 is provided on the inner surface of the upper lid portion 8 so as to reduce the contact area between the filter medium 7 and the upper lid portion 8.
[0012]
The length of the outer wall of the cartridge 6 in the longitudinal direction is slightly shorter than the length of the cartridge housing space in the body 3, and raw water is supplied to the shower head for water purification shower. When this occurs, the entire cartridge 6 is moved upward by water pressure, and a flow path of raw water is formed between the bottom cover portion 12 of the cartridge 6 and the cartridge storage bottom portion 19 of the body portion 3. Here, the length in the longitudinal direction of the outer wall of the cartridge 6 is a length obtained by adding the length of the side surface of the outer edge of the upper lid portion 8 and the height of the upper protrusion 15 to the length in the longitudinal direction of the outer wall of the cylindrical portion 11. The length in the longitudinal direction of the cartridge housing space of the body 3 is the length from the connecting end 14 of the head 1 to the cartridge housing bottom 19 of the body 3.
[0013]
Further, the outer diameter of the cylinder portion 11 of the cartridge 6 is slightly smaller than the inner diameter of the cartridge storage space so as to form a flow path of raw water between the cylinder portion 11 and the inner wall of the cartridge storage space of the body portion 3. It has been made smaller.
[0014]
The length in the longitudinal direction of the outer wall of the cartridge 6 is set to be shorter by 0.1 mm to 2 mm than the length in the longitudinal direction of the cartridge housing space of the barrel portion 3, and if the length set to be shorter is less than 0.1 mm, If the flow rate of the raw water flowing between the bottom lid portion 12 of the cartridge 6 and the cartridge housing bottom portion 19 of the body portion 3 is insufficient, and the flow rate exceeds 2 mm, the flow rate of the raw water described above becomes too large.
Further, the outer diameter of the cylindrical portion 11 of the cartridge 6 is set to be 0.1 mm to 2 mm smaller than the inner diameter of the cartridge housing space of the barrel portion 3, and if this difference is less than 0.1 mm, the cylindrical portion 11 and the barrel portion 3. If the flow rate of the raw water flowing between the inner wall of the cartridge storage space is inadequate and the flow rate exceeds 2 mm, the flow rate of the raw water described above becomes excessive, which is not preferable.
[0015]
2 to 4 are views showing an example of the upper lid portion 8.
The upper lid portion 8 includes a cylindrical water discharge pipe 10 provided in the vertical direction from the center of the disk-shaped upper cover portion 8, a water purification opening 9 provided concentrically around the water discharge pipe 10, and the upper lid portion 8. The upper projection 15 is provided at six locations radially from the center of the outer surface, and the plate-like lower projection 16 is provided at six locations radially from the center of the inner surface of the upper lid portion 8.
[0016]
The upper protrusion 15 is a rib-like one that gradually expands from the middle of the water discharge pipe 10 toward the water purification opening 9, and is of this shape from the viewpoint of fixing the water discharge pipe 10 and reinforcing the upper cover 8. Although it is preferable, the shape is not particularly limited as long as a gap can be formed between the connecting end portion 14 and the upper lid portion 8. Examples of other shapes of the upper protrusion 15 include a cylinder, a cone, a prism, a pyramid, a truncated cone, and a truncated pyramid-shaped protrusion.
[0017]
It is necessary to provide at least one contact point between the upper protrusion 15 and the connecting end portion 14 on the outer surface of the upper lid portion 8 in order to disperse the pressure applied to the contact point between the connecting end portion 14 and the upper protrusion 15. In this case, it is preferable to provide three or more contact points between the connecting end portion 14 and the upper protrusion 15, more preferably six or more points. Further, the height of the upper projection 15, that is, the width of the gap between the connecting end portion 14 and the upper lid portion 8 is not particularly limited as long as the flow path is formed. preferable. If the width of the gap is less than 0.1 mm, a sufficient flow path cannot be secured, and if it exceeds 2 mm, the flow rate of raw water flowing outside the cartridge 6 becomes too large. More preferably, it is the range of 0.5-1 mm.
[0018]
The lower protrusion 16 is provided in order to reduce the contact area between the filter medium 7 and the upper lid 8, disperse the pressure applied to the filter medium 7 during water flow, and prevent the filter medium 7 from being crushed.
The shape of the lower protrusion 16 is not particularly limited as long as it is a shape that disperses the pressure applied to the filter medium 7, but the plate-shaped member is preferable in that the pressure can be efficiently dispersed. Moreover, although the height of the lower protrusion 16 is not specifically limited, For example, it is set as the range of 1-10 mm. If the height of the lower protrusion 16 is less than 1 mm, the effect of pressure dispersion is not sufficient, and if it exceeds 10 mm, the storage space for the filter medium 7 decreases, which is not preferable. Preferably it is the range of 3-5 mm.
[0019]
The shape of the purified water opening 9 may be any shape as long as purified water is discharged from the cartridge 6 and is not particularly limited to the above shape. Further, the shape of the water discharge pipe 10 is not particularly limited as long as the purified water is discharged from the cartridge 6. Furthermore, if the water purification opening 9 has a sufficient water discharge capacity, the water discharge pipe 10 may not be provided in the upper lid 8.
[0020]
The shape of the cylindrical portion 11 is set according to the shape of the cartridge housing space in the body portion 3 of the shower head, and is not particularly limited, but a cylindrical shape is preferable in terms of strength and the like.
Further, the shapes of the bottom cover 12 and the raw water opening 13 are not particularly limited as long as the raw water is introduced into the cartridge 6.
[0021]
As materials for the upper lid portion 8 and the bottom lid portion 12, it is preferable to use plastics such as ABS resin, polypropylene, and polyethylene in consideration of processability and the like.
As the material of the cylindrical portion 11, it is preferable to use plastic such as AS resin (styrene-acrylonitrile copolymer), ABS resin, polycarbonate, etc. Also, check the state of the filter medium 7 in the cartridge 6 such as dirt and crushing. It is preferable that the transparent member is used.
[0022]
The filter medium 7 is not particularly limited as long as it removes chlorine from the raw water. For example, a powder dechlorinating agent 17 as shown in a partial cross-sectional view in FIG. Examples include those wrapped and sealed in four directions, and those obtained by molding the dechlorinating agent 17 into tablets. Among these, a material in which the dechlorinating agent 17 is wrapped with a non-woven sheet 18 is preferably used in that the dechlorinating agent 17 is not easily washed away by water flow.
[0023]
Two non-woven fabric sheets 18 are stacked, and a small room filled with a dechlorinating agent 17 in a space having a width of 5 mm, a depth of 25 mm, and a height of 1 mm is provided at about 30 to 50 locations on one sheet with an interval of 2 to 3 mm. The filter medium 7 is formed by rolling a sheet having a thickness of about 2 to 3 mm filled with the dechlorinating agent 17 into a roll.
In addition, examples of the dechlorinating agent 17 include calcium sulfite, ascorbic acid, activated carbon, and the like. From the viewpoint of dechlorination performance, calcium sulfite is preferably used.
[0024]
The material of the head 1 and the body 3 is not particularly limited, and examples thereof include plastic and metal. Among them, it is desirable to use a plastic such as ABS resin in consideration of pressure resistance and workability.
[0025]
In such a shower head for water purification shower, the upper cover portion 8 of the cartridge 6 is provided with the upper protrusion 15 that contacts the connecting end portion 14 of the head 1, and the cartridge 6 has an outer wall in the longitudinal direction. The length is slightly shorter than the longitudinal direction of the cartridge storage space of the barrel 3, and the outer diameter of the cylinder 11 of the cartridge 6 is slightly smaller than the inner diameter of the cartridge storage space of the barrel 3. Yes. Therefore, when raw water is supplied to the shower head for the purified water shower, a flow path (bypass) of the raw water is formed outside the cartridge 6, and a part of the supplied raw water passes through this bypass and the water pressure applied to the inside of the cartridge 6. Is dispersed, the water pressure applied to the filter medium 7 is reduced, and the filter medium 7 can be prevented from being crushed.
[0026]
Further, the raw water that has passed through the bypass and the purified water that has passed through the cartridge 6 are mixed in the head 1, where the unreacted dechlorinating agent 17 that has been separated from the filter medium 7 into the purified water has passed Since residual chlorine is removed, chlorine does not remain in the purified water ejected from the ejection port 2 of the head 1. And since the dechlorinating agent 17 is used efficiently compared with the past, the lifetime of the filter medium 7 can be extended.
Further, since the lower projection 16 for reducing the contact area between the filter medium 7 and the upper cover 8 is provided on the inner surface of the upper cover 8 of the cartridge 6, the water pressure applied to the filter medium 7 can be dispersed. Crushing can be prevented.
[0027]
【Example】
Examples are shown below.
(Example)
A head having a spout for ejecting purified water, a body detachably connected to the head, and detachably connected to a shower hose, and detachably accommodated in the body, A shower head for a clean water shower composed of a cartridge containing a filter medium for removing chlorine was prepared.
[0028]
The length of the outer wall of the cartridge in the longitudinal direction is 135 mm, the diameter of the upper lid portion is 32 mm, and the diameter of the bottom lid portion is 25.7 mm. Further, the cartridge is provided with a 1 mm upper protrusion on the outer surface of the upper lid portion and a 4.5 mm lower protrusion on the inner surface of the upper lid portion, and the length of the outer wall of the cartridge in the longitudinal direction is set in the cartridge storage space of the barrel portion. The outer diameter of the cylindrical part of the cartridge is set to 0.4 mm at the upper lid part and 0.6 mm smaller at the bottom lid part than the inner diameter of the cartridge housing space of the barrel part. Thus, a bypass for allowing a part of raw water to flow outside the cartridge can be formed.
As the filter medium, 20 g of powdered calcium sulfite was wrapped in a non-woven fabric sheet and wound into a roll.
[0029]
This clean water shower head is connected to a shower hose, raw water with a water temperature of 40 ° C. and a chlorine concentration of 0.5 ppm is passed at 0.01 m 3 / min, and the residual chlorine concentration in the clean water ejected from the spout is 15 minutes apart. The total amount of water passing through the filter medium was measured. Here, the lifetime of the filter medium was set to the time when the residual chlorine concentration in the purified water exceeded 0.15 ppm.
As a result of the measurement, as shown in FIG. 7, the total water flow amount until the lifetime of the filter medium was 7 m 3 . Separately from this life measurement test, 60 m of warm water was passed through at a pressure of 4.5 kgf / cm 2 for 7 m 3, and when the degree of crushing of the filter medium was visually confirmed, the filter medium was hardly crushed.
[0030]
(Comparative example)
The cartridge is not provided with an upper projection on the outer surface of the upper lid portion and a lower projection on the inner surface of the upper lid portion, and the longitudinal length of the outer wall of the cartridge is the same as the longitudinal length of the cartridge housing space of the barrel portion. Furthermore, the shower head for the water purification shower is the same as the embodiment except that the outer diameter of the cylindrical portion of the cartridge is the same as the inner diameter of the cartridge housing space of the body portion and all the supplied raw water flows in the cartridge. Prepared.
[0031]
This clean water shower head is connected to a shower hose, raw water with a water temperature of 40 ° C. and a chlorine concentration of 0.5 ppm is passed at 0.01 m 3 / min, and the residual chlorine concentration in the clean water ejected from the spout is 15 minutes apart. The total amount of water passing through the filter medium was measured. Here, the lifetime of the filter medium was set to the time when the residual chlorine concentration in the purified water exceeded 0.15 ppm.
As a result of the measurement, as shown in FIG. 7, the total water flow amount until the lifetime of the filter medium was 6 m 3 . Separately from this life measurement test, 1 m 3 of hot water at 60 ° C. was passed at a pressure of 4.5 kgf / cm 2 and the degree of crushing of the filter medium was confirmed visually. As a result, crushing of the filter medium was confirmed. The amount of water discharged was also reduced.
[0032]
【The invention's effect】
As described above, in the shower head for water purification shower according to the present invention, since the water pressure applied to the filter medium in the cartridge is reduced, the filter medium can be prevented from being crushed. Further, since the unreacted dechlorinating agent in the purified water discharged from the cartridge can be used efficiently, the life of the filter medium can be extended.
[Brief description of the drawings]
FIG. 1 is a sectional view showing an example of a shower head for water purification shower according to the present invention.
FIG. 2 is a cross-sectional view showing an example of a cartridge upper lid portion of a shower head for water purification shower according to the present invention.
FIG. 3 is a top view showing an example of a cartridge upper lid portion of the shower head for water purification shower according to the present invention.
FIG. 4 is a bottom view showing an example of a cartridge upper lid portion of the shower head for water purification shower according to the present invention.
FIG. 5 is a sectional view showing an example of a conventional shower head for water purification shower.
FIG. 6 is a cross-sectional view showing an example of a filter medium.
FIG. 7 is a graph showing the chlorine removing ability of the present invention and a conventional shower head for water purification shower, wherein the vertical axis represents the residual chlorine concentration (ppm) in the purified water, and the horizontal axis represents the amount of water flow (m 3 ).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Head part, 2 ... Spout, 3 ... Body part, 4 ... Tip part, 5 ... Base end part, 6 ... Cartridge, 7 ... Filter material, 8 * ..Upper lid part, 9 ... purified water opening part, 11 ... cylinder part, 12 ... bottom lid part, 13 ... raw water opening part, 14 ... connection end part, 15 ... upper projection , 16 ... Lower projection

Claims (2)

浄水を噴出する噴出口を有する頭部と、この頭部に先端部が着脱可能に連結され、基端部がシャワーホースに着脱可能に連結される胴部と、この胴部内に着脱可能に収容され、内部に原水中の塩素を除去する濾材を収めたカートリッジとからなり、
上記カートリッジは、浄水の出口となる浄水開口部が形成された上蓋部と、筒部と、原水の入口となる原水開口部が形成された底蓋部とからなり、
上記上蓋部の外面には、上記頭部の連結端部に当接し、連結端部と上蓋部との間に流路を形成する上部突起が中心から放射状に設けられ、
上記上蓋部の内面には、上記濾材に当接する板状の下部突起が中心から放射状に設けられており、
上記カートリッジの外壁の長手方向の長さが、上記胴部のカートリッジ収容空間の長手方向の長さよりも微かに短くされ、
上記カートリッジの筒部の外径が、上記胴部のカートリッジ収容空間の内径よりも、筒部と胴部のカートリッジ収納空間の内壁との間に原水の流路を形成するように小さくされたことを特徴とする浄水シャワー用シャワーヘッド。
A head having a spout for ejecting purified water, a body having a distal end detachably connected to the head, a base end removably connected to a shower hose, and a detachable housing in the body And a cartridge containing a filter medium for removing chlorine in the raw water inside,
The cartridge is composed of an upper lid portion formed with a purified water opening serving as an outlet for purified water, a cylindrical portion, and a bottom lid portion formed with a raw water opening serving as an inlet for raw water,
On the outer surface of the upper lid portion, upper projections that are in contact with the coupling end portion of the head and form a flow path between the coupling end portion and the upper lid portion are provided radially from the center ,
On the inner surface of the upper lid portion, plate-like lower protrusions that come into contact with the filter medium are provided radially from the center ,
The longitudinal length of the outer wall of the cartridge is slightly shorter than the longitudinal length of the cartridge housing space of the barrel,
The outer diameter of the cylindrical portion of the cartridge is smaller than the inner diameter of the cartridge housing space of the barrel so as to form a flow path of raw water between the cylindrical portion and the inner wall of the cartridge housing space of the barrel. Shower head for clean water shower.
前記上蓋部の中心に吐水管が設けられ、前記上部突起の形状は、吐水管の途中から浄水開口部に向けて徐々に広がるリブ状のものである、請求項1に記載の浄水シャワー用シャワーヘッド。  The shower for water purification showers according to claim 1, wherein a water discharge pipe is provided at the center of the upper lid part, and the shape of the upper protrusion is a rib-like shape gradually spreading from the middle of the water discharge pipe toward the water purification opening. head.
JP35842397A 1997-12-25 1997-12-25 Shower head for clean water shower Expired - Fee Related JP4264481B2 (en)

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Application Number Priority Date Filing Date Title
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Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
JP2553464B2 (en) * 1993-06-30 1996-11-13 株式会社イデムインターナショナル Dechlorination filter
JP3011449U (en) * 1994-11-22 1995-05-30 富田製薬株式会社 Water purifier
JP3578506B2 (en) * 1995-02-27 2004-10-20 エムエスケイエレクトロニクス株式会社 Shower device with cartridge for immersed granules
JPH09192043A (en) * 1996-01-16 1997-07-29 Mitsubishi Rayon Co Ltd Clean water shower

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