JP4560747B2 - Human body cleaning device - Google Patents

Human body cleaning device Download PDF

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Publication number
JP4560747B2
JP4560747B2 JP10020399A JP10020399A JP4560747B2 JP 4560747 B2 JP4560747 B2 JP 4560747B2 JP 10020399 A JP10020399 A JP 10020399A JP 10020399 A JP10020399 A JP 10020399A JP 4560747 B2 JP4560747 B2 JP 4560747B2
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water
cleaning
human body
washing
temperature
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JP2000291106A (en
JP2000291106A5 (en
Inventor
裕紀 本田
良祐 林
能行 川原
治雄 筒井
稔 佐藤
博之 松下
康一郎 松下
義和 牛島
理典 柳瀬
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Toto Ltd
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Toto Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、特に給水源から供給される水を所定温度の適温湯に短時間で加熱して人体を洗浄する人体洗浄装置に関するものである。
【0002】
【従来の技術】
従来のこの種の人体洗浄装置の例を図3に示す。ここで図3は、洗浄水の供給系を示す概略構成図である。図3において、洗浄水を供給する給水配管51には、上流側から順に、定流量弁52、電磁弁53、バキュームブレーカ54が接続されている。バキュームブレーカ54の下流は二方に分岐し、一方は余剰の水を便器内に直接捨てるための捨水配管55へ、他方は流量調整用ポンプ56へ接続されている。流量調整用ポンプ56の下流には、順に熱交換器57、流路切替弁58、ノズル装置59が設けてある。
【0003】
熱交換器57内には温水ヒータ60が、また熱交換器57の入水部と出水部には、それぞれ冷水サーミスタ61及び温水サーミスタ62が設けてある。ノズル装置59には、おしり流路63、ビデ流路64、捨水路65の3つの流路が構成されている。なお上記各部の制御は、制御器66によって行われる。
【0004】
上記の構成により、電磁弁53の開動作により給水配管51から供給された洗浄水は、バキュームブレーカ54を押し上げ流量調整用ポンプ56によって流量調節され、熱交換器57により適温の湯に加熱され、流路切替弁58へと至る。ここで洗浄水は、流路切替弁58により選択された流路を通り、ノズル装置59から噴出されるのである。
【0005】
図4には、従来のタイムチャートを示す。便座(図示せず)に設けられた着座スイッチ(図示せず)により着座を検知すると、電磁弁53、流量調整用ポンプ56、温水ヒータ60の順に起動し、所定時間が経過すると逆の順に駆動を停止する。これにより、熱交換器57内の滞留水は湯に置換されるのである。なお、この動作中に供給された洗浄水は、流路切替弁58を経てノズル装置59の捨水路65から便器内に排出される。(通水加熱)
次に、おしり洗浄を開始するため、おしりスイッチ(図示せず)が操作されると、電磁弁53、流量調整用ポンプ56、温水ヒータ60が順に起動される。そしてノズル装置59における流路は、流路切替弁58によりおしり流路63に切り替えられてノズル装置59のおしり吐水口部の前洗浄を所定時間行い、再び捨水路65に切り替えられる。このとき捨水路65の排水先をノズル装置59の胴体を洗浄できる位置にしておけば、ノズル装置59の胴体洗浄を行うこともできる。(前洗浄)
その後ノズルを伸出させ、流路切替弁58により流路をおしり流路63に切り替え、おしり洗浄を行うのである。(ノズル伸出・本洗浄)
次に、おしり洗浄を停止するため、停止スイッチ(図示せず)が操作されると、温水ヒータ60、流量調整用ポンプ56、電磁弁53が順に駆動を停止する。そして流路切替弁58により流路を捨水路65に切り替えた後、ノズルを後退させ、収納位置に収納する。(ノズル収納)
所定時間経過後、再度、電磁弁53、流量調整用ポンプ56、温水ヒータ60が順に起動し、所定時間が経過すると逆の順に駆動を停止する。このときノズル装置59における流路は、流路切替弁58によりおしり流路63と捨水路65とに順次切り替えられ、ノズル装置59のおしり吐水孔部や胴体の後洗浄を所定時間行う。(後洗浄)
上記の構成によれば、洗浄水の加熱を行うのは着座を検知しているときのみであるため、非使用時の待機電力の消費が少なくて済み、常時タンク内に湯を保温させる貯湯タイプの人体洗浄装置に比べて、大幅な節電を図ることが可能となっている。
【0006】
【発明が解決しようとする課題】
しかしながら上記した従来の構成を、通常の家庭用電源を使用して実現した場合、熱交換器は十分な沸かし上げ能力を持つことができない。すなわち、人体の洗浄を行うのに適した温度や流量の洗浄水を得るのは難しく、特に寒冷地における冬季の使用などにおいては、満足な洗浄感が得られず不快であるという課題があった。
【0007】
本発明は、上記課題を解決するためになされたもので、本発明の目的は、通常の家庭用電源を使用しながら、満足な洗浄感を得ることができ、かつ、節電にも寄与する人体洗浄装置を提供することにある。
【0038】
請求項1においては、洗浄水を供給する給水路と、前記給水路に接続されて前記洗浄水を短時間で加熱して湯とする洗浄水加熱手段と、前記洗浄水加熱手段によって加熱された洗浄水の温度を検知する湯温検知手段と、前記湯温検知手段の信号を取り込むとともに、前記洗浄水加熱手段の制御を行う制御器と、洗浄水を噴出する洗浄ノズルとを備えてなる人体洗浄装置において、人体洗浄の開始を指示する操作手段と、人体へ向けて洗浄水を噴出する人体洗浄位置と前記洗浄ノズルの胴体へ向けて洗浄水を噴出する排水位置とのいずれかに洗浄水の吐水先を変更する変更手段とを備え、前記操作手段により前記人体洗浄の開始が指示された際、前記湯温検知手段が殺菌に適する湯温を検知するまで前記制御器により前記洗浄水加熱手段を起動し、前記洗浄ノズルの伸出動作中に前記排水位置にて前記洗浄ノズルの胴体へ向けて前記殺菌に適するを一定時間吐水させた後、前記湯温検知手段が人体洗浄に適する湯温を検出したことに基づいて、前記変更手段により洗浄水の吐水先を前記人体洗浄位置に変更し、人体へ向けて前記人体洗浄に適する湯を噴出するものである。
【0039】
上記発明によれば、使用者が洗浄開始を指示した際に、人体洗浄に先立って高温の洗浄水で排水位置にある器具等を洗浄できるので、例えば人体洗浄を行う前のノズルに、洗浄かつ殺菌を施すことが可能となり、非常に衛生的である。また、高温洗浄後、人体洗浄に適する湯温になった後に人体洗浄を行うので、高温のお湯がノズルから吐水されて火傷を負う恐れもなく安全である。
【0040】
請求項においては、請求項記載の人体洗浄装置において、前記洗浄水加熱手段へ流入する洗浄水の温度を検知する水温検知手段を設け、該水温検知手段による検出水温により前記洗浄水加熱手段の制御方法を変更する制御変更手段を前記制御器に備えたものである。
【0041】
上記発明によれば、加熱された洗浄水の温度を検知する湯温検知手段と加熱手段へ流入する洗浄水の温度を検知する水温検知手段の双方の信号を用いて加熱制御を行うので、より適切な吐水温度制御が可能になる。
【0042】
請求項においては、請求項1又は2に記載の人体洗浄装置において、前記給水路を流れる洗浄水に脈動を与える脈動発生手段を設けたものである。
【0043】
上記発明によれば、非使用時には洗浄水を加熱しないため節電を図ることができ、また、吐水に脈動を付与できるため実際の洗浄水の量は少量であるにもかかわらず洗浄感および洗浄力の非常に優れた人体洗浄が可能となり、結果として節水および節電に寄与し、全体として大幅な省エネが可能となる。
【0044】
請求項においては、請求項記載の人体洗浄装置において、前記脈動発生手段を、前記洗浄水加熱手段の下流に設けたものである。
【0045】
上記発明によれば、加熱手段に不要な脈動圧を与えることを防ぐとともに、吐水部近くに脈動発生装置を配置して脈動圧の減衰を抑えることができる。
【0046】
請求項においては、請求項1ないし請求項記載の人体洗浄装置において、前記洗浄水加熱手段内の水位を検知する水位検知手段を設け、該水位検知手段により所定の水位を検知していない時には、前記洗浄水加熱手段の出力を停止せしめる禁止手段を備えたものである。
【0047】
上記発明によれば、検知手段が所定の水位を検知していない時には洗浄水の加熱を行わないようにすることで空焚きを防止することができ、安全性を高めることができる。
【0048】
【発明の実施の形態】
以下、本発明の実施例を添付図面に基づいて説明する。
【0049】
本発明の一実施例を示す人体洗浄装置を図1に示す。ここで図1は、洗浄水の供給系を示す概略構成図である。図1において、洗浄水を供給する給水配管11には、上流側から順に、定流量弁12、電磁弁13、熱交換器14が接続されている。熱交換器14の出口部には、バキュームブレーカ15が接続されている。バキュームブレーカ15の下流は二方に分岐し、一方は余剰の水を便器内に直接捨てるための捨水配管16へ、他方は脈動発生装置17へ接続されている。脈動発生装置17の下流には、流路切替兼流量調整弁18が接続されている。流路切替兼流量調整弁18の下流は二方に分岐し、一方は捨水路19へ、他方は流路切替弁20を介して洗浄水を人体へ噴出するノズル装置21へ接続されている。なおこの例では、流路切替弁20はノズル装置21内に一体的に構成されている。
【0050】
また、熱交換器14内には温水ヒータ22が、また熱交換器14の入水部と出水部には、それぞれ冷水サーミスタ23及び温水サーミスタ24が設けてある。また、捨水路19の排水先は、ノズル装置21の胴体を洗浄できる位置にしている。また、ノズル装置21には、おしり流路25、やわらか流路26、ビデ流路27の3つの流路が構成されている。なお上記各部の制御は、制御器28によって行われる。
【0051】
本実施例では、脈動発生装置17の上流にアキュームレータ29を、熱交換器14内にはフロートスイッチ30を、また、脈動発生装置17には温度ヒューズ31を設けてある。アキュームレータ29は、脈動発生装置17で発生した脈動が上流へ伝播するのを防ぐためのものであり、フロートスイッチ30は、所定の水位を検知していない時には、温水ヒータ22への通電を行わないようにすることで空焚きを防ぐためのものであり、また、温度ヒューズ31は、脈動発生装置17の異常温度上昇時に駆動を停止し、安全を図るためのものである。
【0052】
上記の構成により、電磁弁13の開動作により給水配管11から供給された洗浄水は、熱交換器14により適温の湯に加熱され、バキュームブレーカ15を押し上げ、脈動発生装置17により脈動を付与され、流路切替兼流量調整弁18へと至る。ここで洗浄水は、流路切替兼流量調整弁18により流量調節され、流路切替弁20へと至り、流路切替弁20により選択された流路を通り、ノズル装置21から噴出されるのである。
【0053】
図2には、本発明のタイムチャートを示す。便座(図示せず)に設けられた着座スイッチ(図示せず)により着座を検知すると、電磁弁13の開動作により洗浄水の通水が始まり、熱交換器14内の温水ヒータ22を起動する。熱交換器14の出水部に設けられた温水サーミスタ24が所定温度を検知すると、温水ヒータ22の出力を下げ、電磁弁13が閉じて洗浄水の通水を停止する。これにより、熱交換器14内の滞留水は所定温度の湯に置換されるのである。なお、この動作中に供給された洗浄水は、流路切替兼流量調整弁18で選択された捨水路19から排出され、便器内に排出される。このとき捨水路19の排水先をノズル装置21の胴体を洗浄できる位置にしておくことにより、ノズル装置21の胴体洗浄を行うことができる。また、これら一連の動作は制御器28で制御されるが、熱交換器14の出水部に設けられた温水サーミスタ24に加え、熱交換器14の入水部に冷水サーミスタ23を設けて入水温を検知するようにすれば、温水サーミスタ24の制御をより効果的に行うことができる。(通水加熱)
上述したとおり、洗浄水の通水を停止した後に温水ヒータ22の出力を下げるのであるが、このとき、熱交換器14内に貯えられる洗浄水の温度が常に所定温度を含む所定温度帯内に保たれるように、温水サーミスタ24からの信号を元に、温水ヒータ22の出力を制御器28で制御する。例えば、所定温度を40℃、所定温度帯を38℃〜42℃に設定したとき、熱交換器14内の洗浄水の温度が常にこの範囲内に納まるように制御するのである。この保温制御により、人体洗浄時に低温水が出て不快を感じたり、高温のお湯が出て火傷をしたりする心配がなくなる。なお、熱交換器14より下流の配管内の滞留水にこの保温制御を行うことができないが、後述する前洗浄時にこの滞留水は排出され、適温のお湯に置換されるため実用上問題はない。(保温制御)
次に、おしり洗浄を開始するため、おしりスイッチ(図示せず)が操作されると、電磁弁13、温水ヒータ22、脈動発生装置17が順に起動される。これらの起動はおしりスイッチ操作に連動して行われるものであるが、勿論、おしりスイッチ操作後、所定時間遅延させた後にそれぞれを起動させるように設定することもできる。ここで、流路切替兼流量調整弁18は予めノズル装置21側へ向かう流路に切り替えられており、その下流の流路切替弁20はセルフクリーニング(SC)位置に設定されているため、洗浄水はノズル装置21の吐水口から吐水される。すなわち、吐水口部の前洗浄が行われるのである。なお、ここで言うセルフクリーニング位置とは、おしり流路25、やわらか流路26、ビデ流路27の3つの流路全てを開とした状態を示す。このとき、脈動を付与された洗浄水で前洗浄が行われるため、吐水口部の汚れを効果的に洗い落とすことができる。(前洗浄)
前洗浄が所定時間行われた後、流路切替兼流量調整弁18により洗浄水の流路が捨水路19に切り替わる。この捨水路19の排水先は、上述したとおりノズル装置21の胴体を洗浄できる位置にしているので、ノズル装置21の胴体洗浄を行うことができる。ここでノズルの胴体洗浄は、適温かつ脈動を付与された洗浄水で行われるので、汚れを効果的に洗い落とすことができる。そしてノズルは収納位置からおしり洗浄位置に伸出し、流路切替弁20はおしり流路25に切り替わる。(ノズル伸出)
また、ノズル装置21の胴体洗浄を行う前に、洗浄水を殺菌に適する温度になるまで温水ヒータ22により加熱し、高温になった湯を排出するようにすれば、ノズル胴体の洗浄だけでなく殺菌まで行うことが可能となり、非常に衛生的である。なお、流路切替弁20をおしり流路25に切り替える時期を、温水サーミスタ24が人体洗浄に適する湯温を検知した後になるよう設定しておけば、高温のお湯がノズルから吐水されて火傷することを防ぐことができる。
【0054】
ノズルのおしり洗浄位置への伸出が終了すると、電磁弁13を短時間閉じ、流路切替兼流量調整弁18により洗浄水の流路を捨水路19からノズル装置21側へ切り替え、かつ、流量が設定された水勢に向かって徐々に上がるようにし、その動作中に電磁弁13を再び開く。これにより設定された水勢が強い場合でも、ソフトな吐水から徐々に設定水勢になるため、使用者に不快感を与えることがない。(ソフトスタート)
上記は流路切替兼流量調整弁18によるソフトスタートの実施例であるが、脈動発生装置17を用いて実施することもできる。例えば、洗浄開始時は高周波の脈動を洗浄水に与え、次第に周波数を下げてやることにより同じ流量でも洗浄強度を徐々に上げることができる。もちろん、洗浄強度を連続的に上昇させるために、流路切替兼流量調整弁18と脈動発生装置17の両方を複合的に制御するようにしてもよい。
【0055】
ソフトスタート動作が終了すると、設定された水勢の適温湯で、おしり洗浄が行われる。ここでも脈動発生装置17の働きにより洗浄水に脈動が付与されているので、少量の水でも快適に洗浄を行うことができる。(本洗浄)
次に、おしり洗浄を停止するため、停止スイッチ(図示せず)が操作されると、脈動発生装置17は駆動を停止し、流路切替兼流量調整弁18により洗浄水の流路が捨水路19に切り替わる。このとき、ノズル伸出の際と同様、ノズル装置21の胴体洗浄を行うことができる。そしてノズルは後退し、収納位置に収納する。なお、流路切替弁20はセルフクリーニング位置に切り替えられる。(ノズル収納)
ノズルの収納が終了すると、洗浄水の流路は、再度流路切替兼流量調整弁18によりノズル装置21側へと切り替えられ、脈動発生装置17も起動する。ここで、流路切替弁20はセルフクリーニング位置に設定されており、洗浄水はノズル装置21の吐水口から吐水される。すなわち、吐水口部の後洗浄が行われるのである。このとき、脈動を付与された洗浄水で後洗浄が行われるため、吐水口部の汚れを効果的に洗い落とすことができる。(後洗浄)
なお、上述の前洗浄から後洗浄に至る一連の動作中、制御器28は、温水サーミスタ24や冷水サーミスタ23からの信号を元に、熱交換器14から流出する洗浄水が適温に保たれるように制御している。
【0056】
後洗浄が所定時間行われた後、脈動発生装置17、電磁弁13は順に駆動を停止し、温水ヒータ22は出力を下げる。ここでも熱交換器14内に貯えられる洗浄水の温度が常に所定温度を含む所定温度帯内に保たれるように、保温制御を行う。これは、再び洗浄操作を行う場合にも、低温水や高温のお湯の吐水を防ぐためである。(保温制御)
そして、上記着座スイッチ(図示せず)により離座(着座オフ)を検知すると、温水ヒータ22の駆動を停止する。ただし、熱交換器14内の洗浄水の凍結を防止するため、冷水サーミスタ23か温水サーミスタ24が凍結の恐れのある水温を検知した場合には、所定時間温水ヒータ22を駆動して洗浄水を温める制御を行う。(待機)
ところで、この実施例では、おしりスイッチが操作された場合について述べたが、ビデ洗浄を開始するためのビデスイッチや、よりソフトな水流でおしりを洗うやわらか洗浄を開始するためのやわらかスイッチが操作された場合も同様であるので、詳しい説明は割愛する。
【0057】
本実施例では、脈動発生装置17を、熱交換器14の下流に配置するように構成している。これは、熱交換器14内に不要な脈動圧を与えないともに、配管内での脈動圧の減衰を抑えるために脈動発生装置17をなるべく吐水部近くに配置するためである。
【0058】
また、脈動発生装置17を、流路切替兼流量調整弁18の上流に配置するように構成しているが、流路切替兼流量調整弁18と流路切替弁20の間に設けても良い。この場合、脈動を付与した洗浄水でノズルの胴体洗浄を行うことができなくなるが、脈動発生装置17をより吐水部近くに配置することができ、配管内での脈動圧の減衰抑制効果は上がる。
【0059】
また、脈動発生装置17を、前洗浄、ノズル胴体洗浄、ソフトスタート、本洗浄、後洗浄のすべての動作中に駆動させるように構成しているが、これらのうちいずれかの動作中のみ駆動させるようにしてもよい。さらに、各動作における脈動発生装置17の駆動または停止を、使用者が選択できるように選択スイッチを設けてもよい。
【0060】
また、人体接近若しくは使用を検知する手段として着座スイッチを例にとったが、便蓋が閉状態から開状態となる動作を検出する検出スイッチなどであってもよい。
【0061】
また、人体接近若しくは使用を検知すると通水加熱制御を自動的に始めるように構成しているが、この制御の実施の可否を使用者が選択することができる節電スイッチを設けてもよい。この場合、使用者が節電スイッチをオンに設定していると、人体接近若しくは使用を検知した場合でも通水加熱制御を自動的に始めることはないため、より節電に寄与できる。ただしこのとき、使用者が洗浄を開始するためのスイッチを押しても、すぐには適温の洗浄水を吐出することはできないため、吐水を遅延させておいて、その間に温水ヒータ22を起動させて洗浄水を適温に温めるような制御を行うとよい。
【0062】
また、洗浄水の吐水先をノズル吐出口と排水位置とに変更する手段として流路切替兼流量調整弁18を例にとったが、ノズルの進退を司るノズル駆動手段などであってもよい。この場合、ノズルの伸出時にはノズル吐出口から、ノズルの収納時には排水位置から、洗浄水が吐水するように構成すればよい。
【0063】
また、空焚き防止のための水位検知手段としてフロートスイッチ30を例にとったが、サーミスタを利用した空気検出サーミスタによる手段や、電極により水位を検出する方法、光の屈折を利用した光センサーによる手段などの各種の手段であってもよい。
【0064】
なお、以上述べた例は全て、人体の中でも特に局部の洗浄を行う人体局部洗浄装置について説明を行ったが、シャワーや水栓などの一般的な人体洗浄装置に本実施例が応用できることは言うまでもない。
【図面の簡単な説明】
【図1】 本発明の一実施例を示す人体洗浄装置の概略構成図。
【図2】 図1の例のタイムチャート。
【図3】 従来の人体洗浄装置の概略構成図。
【図4】 図3の例のタイムチャート。
【符号の説明】
11…給水配管
12…定流量弁
13…電磁弁
14…熱交換器
15…バキュームブレーカ
16…捨水配管
17…脈動発生装置
18…流路切替兼流量調整弁
19…捨水路
20…流路切替弁
21…ノズル装置
22…温水ヒータ
23…冷水サーミスタ
24…温水サーミスタ
25…おしり流路
26…やわらか流路
27…ビデ流路
28…制御器
29…アキュームレータ
30…フロートスイッチ
31…温度ヒューズ
51…給水配管
52…定流量弁
53…電磁弁
54…バキュームブレーカ
55…捨水配管
56…流量調整用ポンプ
57…熱交換器
58…流路切替弁
59…ノズル装置
60…温水ヒータ
61…冷水サーミスタ
62…温水サーミスタ
63…おしり流路
64…ビデ流路
65…捨水路
66…制御器
[0001]
BACKGROUND OF THE INVENTION
The present invention particularly relates to a human body cleaning apparatus that cleans a human body by heating water supplied from a water supply source to appropriate hot water at a predetermined temperature in a short time.
[0002]
[Prior art]
An example of this type of conventional human body cleaning apparatus is shown in FIG. Here, FIG. 3 is a schematic configuration diagram showing a cleaning water supply system. In FIG. 3, a constant flow valve 52, a solenoid valve 53, and a vacuum breaker 54 are connected to a water supply pipe 51 that supplies cleaning water in order from the upstream side. The downstream of the vacuum breaker 54 branches in two directions, one being connected to a drain pipe 55 for directly discarding excess water into the toilet bowl, and the other connected to a flow rate adjusting pump 56. A heat exchanger 57, a flow path switching valve 58, and a nozzle device 59 are sequentially provided downstream of the flow rate adjusting pump 56.
[0003]
A hot water heater 60 is provided in the heat exchanger 57, and a cold water thermistor 61 and a hot water thermistor 62 are provided in a water inlet portion and a water outlet portion of the heat exchanger 57, respectively. The nozzle device 59 includes three channels, a buttocks channel 63, a bidet channel 64, and a drainage channel 65. Note that the control of each part is performed by the controller 66.
[0004]
With the above configuration, the cleaning water supplied from the water supply pipe 51 by the opening operation of the electromagnetic valve 53 is pushed up the vacuum breaker 54, the flow rate is adjusted by the flow rate adjusting pump 56, and heated to a suitable temperature by the heat exchanger 57, It reaches the flow path switching valve 58. Here, the washing water passes through the flow passage selected by the flow passage switching valve 58 and is ejected from the nozzle device 59.
[0005]
FIG. 4 shows a conventional time chart. When seating is detected by a seating switch (not shown) provided on the toilet seat (not shown), the solenoid valve 53, the flow rate adjusting pump 56, and the hot water heater 60 are activated in this order, and are driven in reverse order when a predetermined time has elapsed. To stop. Thereby, the staying water in the heat exchanger 57 is replaced with hot water. In addition, the wash water supplied during this operation is discharged from the waste water channel 65 of the nozzle device 59 into the toilet through the flow path switching valve 58. (Water heating)
Next, when a buttocks switch (not shown) is operated to start buttocks cleaning, the solenoid valve 53, the flow rate adjusting pump 56, and the hot water heater 60 are sequentially activated. Then, the flow path in the nozzle device 59 is switched to the buttocks flow path 63 by the flow path switching valve 58, the pre-washing of the buttocks water discharge port portion of the nozzle apparatus 59 is performed for a predetermined time, and the water flow path 65 is switched again. At this time, if the drainage destination of the drainage channel 65 is set to a position where the body of the nozzle device 59 can be cleaned, the body of the nozzle device 59 can be cleaned. (Pre-cleaning)
Thereafter, the nozzle is extended, and the flow path switching valve 58 switches the flow path to the buttocks flow path 63 to perform butt washing. (Nozzle extension / main cleaning)
Next, when a stop switch (not shown) is operated to stop the buttocks cleaning, the hot water heater 60, the flow rate adjusting pump 56, and the solenoid valve 53 stop driving in order. Then, after the flow path is switched to the waste water path 65 by the flow path switching valve 58, the nozzle is retracted and stored in the storage position. (Nozzle storage)
After a predetermined time elapses, the solenoid valve 53, the flow rate adjusting pump 56, and the hot water heater 60 are started again in order, and when the predetermined time elapses, the driving is stopped in the reverse order. At this time, the flow path in the nozzle device 59 is sequentially switched to the buttocks flow path 63 and the drainage path 65 by the flow path switching valve 58, and the post-washing of the nozzle apparatus 59 and the body is performed for a predetermined time. (Post-cleaning)
According to the above configuration, since the cleaning water is heated only when seating is detected, the consumption of standby power when not in use is small, and the hot water storage type that keeps hot water in the tank at all times Compared to the human body washing apparatus, it is possible to save a large amount of power.
[0006]
[Problems to be solved by the invention]
However, when the conventional configuration described above is realized by using a normal household power supply, the heat exchanger cannot have a sufficient boiling capacity. In other words, it is difficult to obtain wash water at a temperature and flow rate suitable for washing the human body, and there is a problem that it is uncomfortable because a satisfactory washing feeling cannot be obtained particularly in winter use in cold regions. .
[0007]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a human body that can provide a satisfactory feeling of cleaning while using a normal household power source and contributes to power saving. It is to provide a cleaning device.
[0038]
In claim 1, a water supply channel for supplying cleaning water, a cleaning water heating means for the hot water and heating the washing water is connected to the water supply passage in a short time, heated by the washing water heating means a water temperature detecting means for detecting the temperature of the washing water, fetches the signal of the water temperature detecting means, consisting includes a controller for controlling the washing water heating means, a cleaning nozzle for jetting cleaning water, the in the human body washing apparatus, the washing operation means for instructing the start of the human body washing, to one of a drain position for ejecting cleaning water toward a human body washing position for releasing washing water toward the human body to the body of the cleaning nozzle Change means for changing the water discharge destination, and when the start of the human body washing is instructed by the operation means, the washing by the controller until the hot water temperature detection means detects a hot water temperature suitable for sterilization. the water heating means Dynamic and, after the said during protraction operation of the washing nozzle drainage position in the cleaning a certain time the hot water suitable for the sterilization toward the body of the nozzle jetting, hot water the hot water temperature detecting means are suitable for the human body washing temperature detected by particular based on, change the water discharge destination of the washing water by the change means to the human body washing position, and jetting the hot water suitable for the human body washing toward the human body.
[0039]
According to the above invention, when the user gives an instruction to start cleaning, it is possible to clean the instrument etc. at the drainage position with high-temperature cleaning water prior to human body cleaning. It can be sterilized and is very hygienic. In addition, since the human body is cleaned after the hot water temperature reaches a temperature suitable for human body cleaning, the hot water is discharged from the nozzle and is safe without being injured.
[0040]
In claim 2, the human body washing apparatus of claim 1, a water temperature detecting means for detecting the temperature of the washing water flowing into the washing water heating means is provided, the wash water heating unit by detecting the water temperature by the water temperature detecting means The controller includes control change means for changing the control method.
[0041]
According to the above invention, since the heating control is performed using the signals of both the hot water temperature detecting means for detecting the temperature of the heated cleaning water and the water temperature detecting means for detecting the temperature of the cleaning water flowing into the heating means, Appropriate water discharge temperature control becomes possible.
[0042]
According to a third aspect of the present invention, in the human body cleaning device according to the first or second aspect, pulsation generating means for pulsating the cleaning water flowing through the water supply channel is provided.
[0043]
According to the above invention, when not in use, the washing water is not heated, so that power can be saved, and since the pulsation can be imparted to the discharged water, the feeling of washing and the washing power can be achieved even though the actual amount of washing water is small. As a result, it contributes to water saving and power saving, and overall energy saving is possible.
[0044]
According to a fourth aspect of the present invention, in the human body cleaning apparatus according to the third aspect , the pulsation generating means is provided downstream of the cleaning water heating means.
[0045]
According to the above invention, it is possible to prevent unnecessary pulsation pressure from being applied to the heating means, and to suppress the attenuation of the pulsation pressure by arranging the pulsation generator near the water discharger.
[0046]
In Claim 5 , in the human body washing apparatus according to Claims 1 to 4 , a water level detection means for detecting the water level in the washing water heating means is provided, and the predetermined water level is not detected by the water level detection means. In some cases, a prohibiting means for stopping the output of the washing water heating means is provided.
[0047]
According to the above invention, when the detection means does not detect the predetermined water level, heating of the cleaning water is not performed, so that emptying can be prevented and safety can be improved.
[0048]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0049]
A human body washing apparatus showing an embodiment of the present invention is shown in FIG. Here, FIG. 1 is a schematic configuration diagram showing a cleaning water supply system. In FIG. 1, a constant flow valve 12, a solenoid valve 13, and a heat exchanger 14 are connected in order from the upstream side to a water supply pipe 11 that supplies cleaning water. A vacuum breaker 15 is connected to the outlet of the heat exchanger 14. The downstream of the vacuum breaker 15 branches in two directions, one being connected to a drainage pipe 16 for directly discarding excess water in the toilet and the other connected to a pulsation generator 17. A flow path switching / flow rate adjusting valve 18 is connected downstream of the pulsation generator 17. The downstream of the flow path switching / flow rate adjusting valve 18 branches in two directions, one being connected to the drainage path 19 and the other being connected to the nozzle device 21 through the flow path switching valve 20 to eject wash water to the human body. In this example, the flow path switching valve 20 is integrally formed in the nozzle device 21.
[0050]
Further, a hot water heater 22 is provided in the heat exchanger 14, and a cold water thermistor 23 and a hot water thermistor 24 are provided in a water inlet portion and a water outlet portion of the heat exchanger 14, respectively. Further, the drainage destination of the drainage channel 19 is at a position where the body of the nozzle device 21 can be cleaned. Further, the nozzle device 21 is configured with three channels, a buttocks channel 25, a soft channel 26, and a bidet channel 27. Note that the control of each unit is performed by the controller 28.
[0051]
In this embodiment, an accumulator 29 is provided upstream of the pulsation generator 17, a float switch 30 is provided in the heat exchanger 14, and a thermal fuse 31 is provided in the pulsation generator 17. The accumulator 29 is for preventing the pulsation generated by the pulsation generator 17 from propagating upstream, and the float switch 30 does not energize the hot water heater 22 when a predetermined water level is not detected. By doing so, the thermal fuse 31 is for stopping the drive when the abnormal temperature rise of the pulsation generating device 17 and for safety.
[0052]
With the above configuration, the washing water supplied from the water supply pipe 11 by the opening operation of the electromagnetic valve 13 is heated to an appropriate temperature by the heat exchanger 14, pushes up the vacuum breaker 15, and is pulsated by the pulsation generator 17. To the flow path switching / flow rate adjusting valve 18. Here, the flow rate of the washing water is adjusted by the flow path switching / flow control valve 18, reaches the flow path switching valve 20, passes through the flow path selected by the flow path switching valve 20, and is ejected from the nozzle device 21. is there.
[0053]
FIG. 2 shows a time chart of the present invention. When seating is detected by a seating switch (not shown) provided on the toilet seat (not shown), the electromagnetic valve 13 is opened to start the washing water flow, and the hot water heater 22 in the heat exchanger 14 is activated. . When the hot water thermistor 24 provided in the water discharge section of the heat exchanger 14 detects a predetermined temperature, the output of the hot water heater 22 is lowered, the electromagnetic valve 13 is closed, and the flow of cleaning water is stopped. Thereby, the staying water in the heat exchanger 14 is replaced with hot water of a predetermined temperature. In addition, the wash water supplied during this operation is discharged from the drainage channel 19 selected by the flow path switching / flow rate adjusting valve 18 and discharged into the toilet bowl. At this time, the body of the nozzle device 21 can be cleaned by setting the drainage destination of the drainage channel 19 to a position where the body of the nozzle device 21 can be cleaned. These series of operations are controlled by the controller 28. In addition to the hot water thermistor 24 provided in the water discharge portion of the heat exchanger 14, a cold water thermistor 23 is provided in the water intake portion of the heat exchanger 14 to adjust the incoming water temperature. If it detects, control of warm water thermistor 24 can be performed more effectively. (Water heating)
As described above, the output of the hot water heater 22 is lowered after stopping the flow of the wash water. At this time, the temperature of the wash water stored in the heat exchanger 14 is always within a predetermined temperature range including the predetermined temperature. The output of the hot water heater 22 is controlled by the controller 28 based on the signal from the hot water thermistor 24 so as to be maintained. For example, when the predetermined temperature is set to 40 ° C. and the predetermined temperature zone is set to 38 ° C. to 42 ° C., the temperature of the cleaning water in the heat exchanger 14 is controlled so as to always fall within this range. With this heat retention control, there is no need to worry about low temperature water coming out during body washing and feeling uncomfortable or hot hot water coming out and causing burns. Although this heat retention control cannot be performed on the staying water in the pipe downstream from the heat exchanger 14, there is no practical problem because this staying water is discharged during pre-cleaning described later and replaced with hot water at an appropriate temperature. . (Insulation control)
Next, when a buttocks switch (not shown) is operated to start the buttocks cleaning, the electromagnetic valve 13, the hot water heater 22, and the pulsation generator 17 are sequentially activated. These activations are performed in conjunction with the buttocks switch operation. Of course, after the buttocks switch operation, each can be set to be activated after a predetermined time delay. Here, the flow path switching / flow rate adjusting valve 18 has been switched in advance to the flow path toward the nozzle device 21 side, and the downstream flow path switching valve 20 is set at the self-cleaning (SC) position. Water is discharged from the water outlet of the nozzle device 21. That is, pre-cleaning of the water discharge port is performed. Note that the self-cleaning position referred to here indicates a state in which all of the three channels of the buttocks channel 25, the soft channel 26, and the bidet channel 27 are opened. At this time, since the pre-cleaning is performed with the cleaning water to which pulsation is imparted, dirt on the water discharge port can be effectively washed off. (Pre-cleaning)
After the pre-cleaning is performed for a predetermined time, the flow path switching / flow rate adjusting valve 18 switches the flow path of the wash water to the drainage path 19. Since the drainage destination of the drainage channel 19 is at a position where the body of the nozzle device 21 can be cleaned as described above, the body of the nozzle device 21 can be cleaned. Here, the body cleaning of the nozzle is performed with cleaning water having an appropriate temperature and pulsation, so that dirt can be effectively washed off. The nozzle extends from the storage position to the buttocks washing position, and the flow path switching valve 20 is switched to the buttocks flow path 25. (Nozzle extension)
In addition, before cleaning the body of the nozzle device 21, if the cleaning water is heated by the hot water heater 22 to a temperature suitable for sterilization and the hot water is discharged, not only cleaning the nozzle body. It is possible to perform sterilization, and it is very hygienic. In addition, if the hot water thermistor 24 detects the hot water temperature suitable for a human body washing | cleaning when the time which switches the flow-path switching valve 20 to the buttocks flow path 25 is set, hot hot water will be discharged from a nozzle and will be burned. Can be prevented.
[0054]
When extension of the nozzle to the buttocks cleaning position is completed, the electromagnetic valve 13 is closed for a short time, the flow path switching and flow rate adjusting valve 18 is used to switch the flow path of the cleaning water from the drainage path 19 to the nozzle device 21 side, and the flow rate Is gradually raised toward the set water force, and the solenoid valve 13 is opened again during the operation. Even if the water force set by this is strong, since it becomes a set water force gradually from soft water discharge, it does not give a user a discomfort. (Soft start)
The above is an example of the soft start by the flow path switching / flow rate adjusting valve 18, but can also be implemented by using the pulsation generator 17. For example, the cleaning strength can be gradually increased even at the same flow rate by applying high-frequency pulsation to the cleaning water at the start of cleaning and gradually decreasing the frequency. Of course, in order to continuously increase the cleaning strength, both the flow path switching / flow rate adjusting valve 18 and the pulsation generator 17 may be controlled in combination.
[0055]
When the soft start operation is completed, the butt washing is performed with the appropriate temperature of hot water set. Again, since the pulsation is given to the washing water by the action of the pulsation generator 17, the washing can be performed comfortably even with a small amount of water. (Main cleaning)
Next, when a stop switch (not shown) is operated to stop the buttocks cleaning, the pulsation generating device 17 stops driving, and the flow path of the cleaning water is discarded by the flow path switching / flow rate adjusting valve 18. Switch to 19. At this time, the body of the nozzle device 21 can be cleaned as in the case of nozzle extension. The nozzle then moves backward and is stored in the storage position. The flow path switching valve 20 is switched to the self-cleaning position. (Nozzle storage)
When the storage of the nozzle is completed, the flow path of the washing water is switched again to the nozzle device 21 side by the flow path switching / flow rate adjusting valve 18 and the pulsation generator 17 is also started. Here, the flow path switching valve 20 is set to the self-cleaning position, and the cleaning water is discharged from the water outlet of the nozzle device 21. That is, the post-cleaning of the water discharge port is performed. At this time, since the post-washing is performed with the washing water to which the pulsation is imparted, the dirt at the water discharge port can be effectively washed off. (Post-cleaning)
During a series of operations from the pre-cleaning to the post-cleaning described above, the controller 28 keeps the wash water flowing out from the heat exchanger 14 at an appropriate temperature based on signals from the hot water thermistor 24 and the cold water thermistor 23. So that it is controlled.
[0056]
After the post-cleaning is performed for a predetermined time, the pulsation generator 17 and the electromagnetic valve 13 stop driving in order, and the hot water heater 22 decreases the output. Also here, the temperature control is performed so that the temperature of the washing water stored in the heat exchanger 14 is always kept within a predetermined temperature range including the predetermined temperature. This is to prevent low-temperature water or hot water from being discharged even when the cleaning operation is performed again. (Insulation control)
Then, when the seat switch (not shown) detects the separation (seating off), the driving of the hot water heater 22 is stopped. However, in order to prevent freezing of the washing water in the heat exchanger 14, when the cold water thermistor 23 or the hot water thermistor 24 detects a water temperature that may freeze, the hot water heater 22 is driven for a predetermined time to supply the washing water. Control to warm up. (Standby)
By the way, in this embodiment, the case where the butt switch was operated was described. However, the bidet switch for starting bidet washing and the soft switch for starting washing with softer water flow are operated. The same applies to the case, so a detailed explanation is omitted.
[0057]
In this embodiment, the pulsation generator 17 is configured to be disposed downstream of the heat exchanger 14. This is because unnecessary pulsation pressure is not applied to the heat exchanger 14, and the pulsation generator 17 is disposed as close to the water discharge portion as possible in order to suppress attenuation of the pulsation pressure in the pipe.
[0058]
Further, although the pulsation generator 17 is configured to be disposed upstream of the flow path switching / flow rate adjusting valve 18, it may be provided between the flow path switching / flow rate adjusting valve 18 and the flow path switching valve 20. . In this case, the body of the nozzle cannot be cleaned with the cleaning water to which pulsation has been applied, but the pulsation generator 17 can be disposed closer to the water discharger, and the effect of suppressing the attenuation of the pulsating pressure in the pipe is increased. .
[0059]
Further, the pulsation generator 17 is configured to be driven during all the operations of pre-cleaning, nozzle body cleaning, soft start, main cleaning, and post-cleaning, but is driven only during any of these operations. You may do it. Further, a selection switch may be provided so that the user can select driving or stopping of the pulsation generator 17 in each operation.
[0060]
Further, the seat switch is taken as an example of the means for detecting approach or use of the human body, but it may be a detection switch for detecting an operation in which the toilet lid is opened from the closed state.
[0061]
Moreover, although it has comprised so that water flow heating control may be started automatically, if a human body approach or use is detected, you may provide the power-saving switch which can select whether the implementation of this control is possible. In this case, if the user has set the power saving switch to ON, the water heating control is not automatically started even when the approach or use of the human body is detected, which can further contribute to power saving. However, at this time, even if the user presses the switch for starting the cleaning, it is not possible to immediately discharge the cleaning water having the appropriate temperature. Therefore, the water discharge is delayed and the hot water heater 22 is activated during that time. It is recommended to control so that the washing water is heated to an appropriate temperature.
[0062]
Further, although the flow path switching and flow rate adjusting valve 18 is taken as an example of means for changing the water discharge destination of the cleaning water to the nozzle discharge port and the drainage position, it may be a nozzle drive means for controlling the advance and retreat of the nozzle. In this case, the cleaning water may be discharged from the nozzle discharge port when the nozzle is extended and from the drainage position when the nozzle is stored.
[0063]
Further, although the float switch 30 is taken as an example of the water level detection means for preventing air blow, it is based on a means by an air detection thermistor using a thermistor, a method for detecting a water level by an electrode, or an optical sensor using light refraction. Various means such as means may be used.
[0064]
In addition, although all the examples described above have been described with respect to a human body local cleaning apparatus that performs local cleaning particularly in the human body, it goes without saying that this embodiment can be applied to general human body cleaning apparatuses such as showers and faucets. Yes.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a human body cleaning apparatus showing an embodiment of the present invention.
FIG. 2 is a time chart of the example of FIG.
FIG. 3 is a schematic configuration diagram of a conventional human body cleaning apparatus.
4 is a time chart of the example of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Water supply piping 12 ... Constant flow valve 13 ... Electromagnetic valve 14 ... Heat exchanger 15 ... Vacuum breaker 16 ... Waste water piping 17 ... Pulsation generator 18 ... Flow path switching and flow control valve 19 ... Waste water path 20 ... Flow path switching Valve 21 ... Nozzle device 22 ... Hot water heater 23 ... Cold water thermistor 24 ... Hot water thermistor 25 ... Wet flow path 26 ... Soft flow path 27 ... Bidet flow path 28 ... Controller 29 ... Accumulator 30 ... Float switch 31 ... Thermal fuse 51 ... Water supply Piping 52 ... Constant flow valve 53 ... Solenoid valve 54 ... Vacuum breaker 55 ... Waste water piping 56 ... Flow rate adjusting pump 57 ... Heat exchanger 58 ... Flow path switching valve 59 ... Nozzle device 60 ... Hot water heater 61 ... Cold water thermistor 62 ... Hot water thermistor 63 ... Butt passage 64 ... Bidet passage 65 ... Waste water passage 66 ... Controller

Claims (5)

洗浄水を供給する給水路と、
前記給水路に接続されて前記洗浄水を短時間で加熱して湯とする洗浄水加熱手段と、
前記洗浄水加熱手段によって加熱された洗浄水の温度を検知する湯温検知手段と、
前記湯温検知手段の信号を取り込むとともに、前記洗浄水加熱手段の制御を行う制御器と、
洗浄水を噴出する洗浄ノズルと
を備えてなる人体洗浄装置において、
人体洗浄の開始を指示する操作手段と、
人体へ向けて洗浄水を噴出する人体洗浄位置と前記洗浄ノズルの胴体へ向けて洗浄水を噴出する排水位置とのいずれかに洗浄水の吐水先を変更する変更手段と、
を備え、
前記操作手段により前記人体洗浄の開始が指示された際、前記湯温検知手段が殺菌に適する湯温を検知するまで前記制御器により前記洗浄水加熱手段を起動し、前記洗浄ノズルの伸出動作中に前記排水位置にて前記洗浄ノズルの胴体へ向けて前記殺菌に適するを一定時間吐水させた後、前記湯温検知手段が人体洗浄に適する湯温を検出したことに基づいて、前記変更手段により洗浄水の吐水先を前記人体洗浄位置に変更し、人体へ向けて前記人体洗浄に適する湯を噴出することを特徴とする人体洗浄装置。
A water supply channel for supplying cleaning water;
A wash water heating unit to the hot water by heating in a short time the cleaning water is connected to the water supply passage,
A water temperature detecting means for detecting the temperature of the washing water heated by the washing water heating means,
Fetches a signal of the water temperature detecting means, a controller for controlling the washing water heating means,
A cleaning nozzle that ejects cleaning water ;
In a human body cleaning apparatus comprising:
Operation means for instructing the start of human body washing;
Changing means for changing the discharge destination of the cleaning water to either the human body cleaning position for spraying the cleaning water toward the human body or the drainage position for discharging the cleaning water toward the body of the cleaning nozzle ;
With
When the operation means instructs the start of the human body cleaning, the controller starts the cleaning water heating means until the hot water temperature detecting means detects a hot water temperature suitable for sterilization, and the cleaning nozzle extends. after said toward the body of the cleaning nozzle at the drainage position by a certain time spouting water suitable to the sterilization during and especially on the basis the water temperature detecting means detects a water temperature suitable for the human body washing, the change the water discharge destination of the washing water to the human body washing position by changing means, the human body washing apparatus, characterized in that toward the human body to eject hot water suitable for the human body washing.
請求項記載の人体洗浄装置において、前記洗浄水加熱手段へ流入する洗浄水の温度を検知する水温検知手段を設け、該水温検知手段による検出水温により前記洗浄水加熱手段の制御方法を変更する制御変更手段を前記制御器に備えたことを特徴とする人体洗浄装置。2. The human body cleaning apparatus according to claim 1 , further comprising a water temperature detecting means for detecting a temperature of the washing water flowing into the washing water heating means, and changing a control method of the washing water heating means according to a detected water temperature by the water temperature detecting means. A human body washing apparatus comprising a control change means in the controller. 請求項1又は2に記載の人体洗浄装置において、前記給水路を流れる洗浄水に脈動を与える脈動発生手段を設けたことを特徴とする人体洗浄装置。 3. The human body cleaning apparatus according to claim 1 , further comprising a pulsation generating unit that pulsates the cleaning water flowing through the water supply channel. 請求項記載の人体洗浄装置において、前記脈動発生手段を、前記洗浄水加熱手段の下流に設けたことを特徴とする人体洗浄装置。4. The human body washing apparatus according to claim 3 , wherein the pulsation generating means is provided downstream of the washing water heating means. 請求項1〜請求項のいずれかに記載の人体洗浄装置において、前記洗浄水加熱手段内の水位を検知する水位検知手段を設け、該水位検知手段により所定の水位を検知していない時には、前記洗浄水加熱手段の出力を停止せしめる禁止手段を備えたことを特徴とする人体洗浄装置。In the human body washing apparatus according to any one of claims 1 to 4 , provided with a water level detection means for detecting a water level in the washing water heating means, when the predetermined water level is not detected by the water level detection means, A human body washing apparatus comprising a prohibiting means for stopping the output of the washing water heating means.
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