JP4241180B2 - Washing machine - Google Patents

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Publication number
JP4241180B2
JP4241180B2 JP2003136967A JP2003136967A JP4241180B2 JP 4241180 B2 JP4241180 B2 JP 4241180B2 JP 2003136967 A JP2003136967 A JP 2003136967A JP 2003136967 A JP2003136967 A JP 2003136967A JP 4241180 B2 JP4241180 B2 JP 4241180B2
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JP
Japan
Prior art keywords
washing
tub
laundry
water level
detergent
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JP2003136967A
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JP2004337334A (en
Inventor
優子 大村
美穂 久保
義明 崎田
兼一 赤坂
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、つけ洗いを行う洗濯機に関する。
【0002】
【従来の技術】
一般に、まとめ洗いのように着用後数日間放置された汚れや、着用・洗濯の繰り返しによって蓄積されていく油脂汚れなどは、十分に除去されない場合には、黄ばみとなって現れてくる。
【0003】
従来、このような頑固な汚れがついた洗濯物を洗うために、洗濯槽内の洗剤液に汚れがついた洗濯物を所定時間浸漬し、界面活性剤を吸着させて汚れを分解するつけ洗いを行った後、洗濯行程を行うようにしていた(例えば、特許文献1参照)。
【0004】
【特許文献1】
特開平7−185185号公報
【0005】
【発明が解決しようとする課題】
しかしながら、このような従来の構成では、汚れの程度に関係なくつけ洗い時間は一定で、汚れに応じてつけ洗い時間を変更することができず、洗浄力不足が生じたり、所要時間が必要以上に長くなってしまうことがあった。
【0006】
本発明は上記課題を解決するもので、汚れの程度に応じて、つけ洗い行程のつけ洗い時間を選択できるようにし、つけ洗い行程の所要時間を適正化して洗浄力を確保することを目的としている。
【0007】
【課題を解決するための手段】
本発明は上記目的を達成するために、外槽と、外槽内に回転自在に配設され洗濯物を収容する洗濯槽と、洗濯槽内に給水する給水弁と、外槽内の水位を検知する水位検知手段と、洗濯槽を回転駆動するモータと、水位検知手段の信号を入力し給水弁、モータなどの動作を制御して洗濯、すすぎ、脱水などの一連の行程を実行する制御手段とを備え、制御手段は、洗濯行程において、洗剤を溶解する洗剤溶解行程と、洗濯物をつけ洗いするつけ洗い行程と、本洗い行程とを実行可能とし、洗濯行程が開始されると、給水弁を動作させて給水を開始し、水位検知手段が本洗い行程での水位である通常の洗濯水位より低い所定水位を検知すると給水弁の動作を停止し、洗濯槽を洗剤が溶解する回転数で回転させる洗剤溶解行程を実行した後、つけ洗い行程を実行するようにし、つけ洗い行程は、洗剤溶解行程の回転数より高い回転数で回転させることで洗濯槽と外槽の間に泡を発生させ、発生した泡が洗濯槽内に吐出させる泡吐出行程と、洗濯物を撹拌する撹拌行程と、洗濯物をつけおくつけおき行程の3つ行程よりなり、3つの行程を使用者により選択されたつけ洗い時間繰り返すようにしたものである。
【0008】
これにより、泡吐出行程で、洗濯物に高濃度の洗剤液がしみ込むことになり、これによっても汚れが落ちやすい状態となり、撹拌行程で、洗濯物に機械力を加えることにより、泡を洗濯物全体に浸透させるとともに、洗濯物の位置を入れ換えることができ、つぎの泡吐出行程で、泡がより洗濯物全体にかかるようになり、洗いむらを低減でき、つけおき行程で、洗濯物の繊維の内部に残留する汚れにも時間をかけて洗剤成分を浸透させて分解することができるとともに、汚れの程度に応じて、つけ洗い行程のつけ洗い時間を選択することができ、つけ洗い行程の所要時間を適正化できて洗浄力を確保することができる。
【0009】
【発明の実施の形態】
本発明の請求項1に記載の発明は、外槽と、前記外槽内に回転自在に配設され洗濯物を収容する洗濯槽と、前記洗濯槽内に給水する給水弁と、前記外槽内の水位を検知する水位検知手段と、前記洗濯槽を回転駆動するモータと、前記水位検知手段の信号を入力し前記給水弁、前記モータなどの動作を制御して洗濯、すすぎ、脱水などの一連の行程を実行する制御手段とを備え、前記制御手段は、洗濯行程において、洗剤を溶解する洗剤溶解行程と、前記洗濯物をつけ洗いするつけ洗い行程と、本洗い行程とを実行可能とし、前記洗濯行程が開始されると、前記給水弁を動作させて給水を開始し、前記水位検知手段が前記本洗い行程での水位である通常の洗濯水位より低い所定水位を検知すると前記給水弁の動作を停止し、前記洗濯槽を洗剤が溶解する回転数で回転させる前記洗剤溶解行程を実行した
後、前記つけ洗い行程を実行するようにし、前記つけ洗い行程は、前記洗剤溶解行程の回転数より高い回転数で前記洗濯槽を回転させることで前記洗濯槽と前記外槽の間に泡を発生させ、前記発生した泡を前記洗濯槽内に吐出させる泡吐出行程と、前記洗濯物を撹拌する撹拌行程と、前記洗濯物をつけおくつけおき行程の3つ行程よりなり、前記3つの行程を使用者により選択されたつけ洗い時間繰り返すようにしたものであり、泡吐出行程で、洗濯物に高濃度の洗剤液がしみ込むことになり、これによっても汚れが落ちやすい状態となり、撹拌行程で、洗濯物に機械力を加えることにより、泡を洗濯物全体に浸透させるとともに、洗濯物の位置を入れ換えることができ、つぎの泡吐出行程で、泡がより洗濯物全体にかかるようになり、洗いむらを低減でき、つけおき行程で、洗濯物の繊維の内部に残留する汚れにも時間をかけて洗剤成分を浸透させて分解することができるとともに、汚れの程度に応じて、つけ洗い行程のつけ洗い時間を選択することができ、つけ洗い行程の所要時間を適正化できて洗浄力を確保することができる。
【0010】
請求項2に記載の発明は、上記請求項1に記載の発明において、制御手段は、つけ洗い行程において、使用者により選択されたつけ洗い時間が長い程、前記使用者により選択されたつけ洗い時間に対する撹拌行程の時間の比率を小さくするようにしたものであり、つけ洗い時間を長く設定した場合には、撹拌行程の時間の比率を小さくすることで、つけ洗い時間を長く設定しても、撹拌による布傷みを抑制することができる。
【0011】
請求項3に記載の発明は、上記請求項2に記載の発明において、制御手段は、使用者により選択されたつけ洗い時間によらず、撹拌行程の合計時間が一定になるようにしたものであり、選択したつけ洗い時間によらず、撹拌による布傷みを防止することができる。
【0012】
【実施例】
以下、本発明の実施例について、図面を参照しながら説明する。
【0013】
(実施例1)
図1に示すように、外槽1の内側には、回転自在に配設した内槽(洗濯槽)2を内包し、内槽2の内底部には減速機構3を介して回転自在に撹拌翼4を配設している。外槽1の上部開口部にはパッキン5を介して外槽カバー6を設け、吊り棒7により筐体8に吊り下げている。
【0014】
モータ9は、減速機構3を介して、内槽2または、撹拌翼4を回転駆動する。給水弁10は内槽2内に水を給水するものであり、水位検知手段11は外槽1内の水位を検知するもので、排水弁12は外槽1内の洗剤液を排水するものである。
【0015】
外槽1の内面には、外槽1の内底部1aよりも上方に位置した泡室13を構成しており、泡室13の上部の開口部にはパッキン5を介して外槽カバー6に形成した蓋部14(図3に示す)で密閉するとともに、蓋部14の一部には循環経路15の一部を形成しており、循環経路15の先端には泡吐出部16を配設している。
【0016】
つぎに、図2に示すように、泡室13の外周部を構成する側板17は、回転方向に向かって外槽1の内面より外側に広がるように形成しており、また泡室13と外槽1の内部を仕切る仕切り板18を備えている。泡室13の底面を構成する案内板19は、回転方向に向かって上方に湾曲するように形成している。
【0017】
つぎに、図3に示すように、泡吐出部16は泡の吐出方向が内槽2の回転方向と同方向になり、かつ吐出した泡が内槽2の略中心部2aから外周部2bまでかかるように構成している。
【0018】
制御装置20は、図4に示すように構成しており、制御手段21は、マイクロコンピュータで構成し、パワースイッチング手段22を介してモータ9、給水弁10、排水弁12などの動作を制御し、洗濯、すすぎ、脱水などの一連の行程を逐次制御する。
【0019】
ここで、制御手段21は、洗濯行程の前行程として、通常の洗濯水位よりも低い水位で実行するつけ洗い行程を有し、このつけ洗い行程のつけ洗い時間を任意に選択できるようにし、また、つけ洗い行程は、泡吐出行程に加え、撹拌行程とつけおき行程を組み合わせて実行し、選択したつけ洗い時間に応じて、撹拌時間とつけおき時間の比率を変更するようにしている。
【0020】
入力設定手段23は、運転コース、つけ洗い時間等を設定するもので、制御手段21は入力設定手段23からの情報を入力して、その情報を基に表示手段24で表示して使用者に知らせる。なお、25は商用電源、26は電源スイッチである。
【0021】
上記構成において動作を説明すると、内槽2内に洗濯物と洗剤を投入した後、入力設定手段23によりつけ洗い行程を有するコースを設定し、つけ洗い時間を選択する。運転を開始すると、制御手段21は、給水弁10を作動させて給水を開始する。水位検知手段11が通常の洗剤液位よりも低い所定水位(洗濯水位の約1/4)を検知すると制御手段21に信号を送り、給水弁10の動作を停止する。
【0022】
その後、洗剤溶解行程に移り、制御手段21によってモータ9を駆動し、内槽2を回転する。このときの回転数は、この後の泡行程よりも低く設定しているため、洗剤を溶解する前に洗剤液が泡吐出部16から吐出することなく、洗剤を溶解する。
【0023】
つぎに、つけ洗い行程を実行する。つけ洗い行程は、泡吐出行程、撹拌行程、つけおき行程の繰り返しからなり、入力設定手段23により設定されたつけ洗い時間を運転する。
【0024】
泡吐出行程では、洗剤溶解行程よりも高い回転数で内槽2を回転させることで、内槽2と外槽1の間の洗剤液に大量の空気を送り込んでそれらを混合させ、大量の泡が発生する。そして、発生した大量の泡は比重が軽いため洗剤液の上部に移動し、外槽1の内側を回転しながら勢いよく泡室13に入ってくる。泡室13に入ってきた泡は、案内板19に沿ってその速度成分を水平方向から垂直方向に変換することで上方に揚水され、循環経路15を通じて泡吐出部16から内槽2内にその上方より吐出する。
【0025】
このとき、泡吐出部16は泡の吐出方向が内槽2の回転方向と同方向になるため、吐出した泡と内槽1または内槽2内の洗濯物との速度差を小さくすることができ、落下した泡が内槽2または内槽2内の洗濯物に当たって、飛び跳ねるのを防ぐことができる。また、泡吐出部16は吐出した泡が内槽2の略中心部2aから外周部2bまでかかるように構成しているため、内槽2内の洗濯物が部分的に洗剤液の上面より突出していても、内槽2が回転すれば泡は内槽2内の洗濯物に万遍なくかけることができる。
【0026】
ここで、泡について詳述する。一般に、洗剤分子Aをモデル的に表すと、図5に示すように、親水基aと親油基bとからなる。そこで、洗剤を水に溶かした状態を表すと、図6に示すように、界面(水面)に洗剤分子Aが整列し、並びきれない洗剤分子は水中に個々またはミセル(集団)として存在する。そして、界面の洗剤分子が取り除かれると、直ちに水中の洗剤分子が界面に移動し補充する働きがある。
【0027】
したがって、例えば、図7に示すように、洗剤液に気泡Bを送り込むと、気泡Bは上昇して界面に達し、界面に整列して洗剤分子Aをそのまま泡の幕に保持した形の泡Cが発生する。すなわち、洗剤分子Aをできるだけ並べた泡Cとなり、洗剤濃度は高濃度である。
このとき、泡として持ち去られた洗剤分子の補充には、液中の洗剤分子が移動することになり、気泡Bを次々送れば、泡Cが次々と作られることになる。このとき、この泡の膜内外に当然のことながら親油基bを向けている。
【0028】
このようにして作られた泡Cを汚れた洗濯物の表面あるいは洗濯物を通過させることによって、親油基bに油および油に付着した粒子汚れを結合して持ち去ることになる。また、泡Cが洗濯物通過中に破泡すると洗濯物に高濃度の洗剤液がしみ込むことになり、これによっても汚れが落ちやすい状態となる。
【0029】
泡吐出行程の後、撹拌行程を実行する。撹拌行程では、制御手段21によって、モータ9を駆動し、撹拌翼4を反転させる。撹拌翼4の反転で、洗濯物に機械力を加えることにより、泡を洗濯物全体に浸透させるとともに、洗濯物の位置を入れ換えることができ、つぎの泡吐出行程で、泡がより洗濯物全体にかかるようになり、洗いむらを低減できる。さらに、つけおき行程を実行することで、洗濯物の繊維の内部に残留する汚れにも時間をかけて洗剤成分を浸透させて分解することができる。また、つけ洗い行程を所定回数繰り返し実行するので、洗浄力を一層向上することができるとともに、洗いむらを低減することができる。
【0030】
制御手段21は、入力設定手段23により設定されたつけ洗い時間に応じて、(表1)に示すようにつけ洗い行程を実行する。
【0031】
【表1】

Figure 0004241180
【0032】
つけ洗い時間1時間を選択すると、泡吐出行程1分、撹拌行程1分、つけおき行程8分で計10分のサイクルを6回繰り返すことになる。2時間を選択したときは、最初の1時間は泡吐出行程1分、撹拌行程1分、つけおき行程8分で計10分のサイクルを6回繰り返し、1時間後から2時間までは、泡吐出行程1分、撹拌行程1分、つけおき行程13分で計15分のサイクルを4回繰り返し、2時間で撹拌される積算撹拌時間は10分となる。
【0033】
9時間を選択した場合でも、撹拌される積算撹拌時間は20分となる。ここで、9時間を選択して最初の1時間のサイクルを繰り返したと仮定すると、9時間で撹拌される積算
撹拌時間は54分となり、激しい布傷みが発生してしまうことになる。
【0034】
つけ洗い行程の後、制御手段21は、給水弁10を作動させて給水を開始する。水位検知手段11が設定水位(通常の洗濯水位)を検知すると制御手段21に信号を送り、給水弁10の動作を停止する。そして、制御手段21によって、モータ9を駆動し、撹拌翼4を所定時間反転させて、本洗い行程を実行して、つけ洗い行程で分解した汚れを、洗濯物から除去し、洗浄を行う。
【0035】
このように本実施例によれば、洗濯物をつけ洗いするつけ洗い行程のつけ洗い時間を任意に選択できるようにしたので、汚れの程度に応じて、つけ洗い行程のつけ洗い時間を選択することができ、つけ洗い行程の所要時間を適正化できて洗浄力を確保することができる。
【0036】
また、つけ洗い行程は、撹拌行程とつけおき行程を組み合わせて実行し、選択したつけ洗い時間に応じて、撹拌時間とつけおき時間の比率を変更するようにしたので、つけ洗い時間を長く設定した場合には、撹拌時間の比率を小さくすることで、つけ洗い時間を長く設定しても、撹拌による布傷みを抑制することができる。
【0037】
なお、本実施例では、外槽1の内側に回転自在に配設した内槽2内に洗濯物を投入して洗濯するように構成しているが、かならずしも2層の外槽1と内槽2を必要とせず、1層の洗濯槽であってもよいことはいうまでもない。
【0038】
(実施例2)
図4に示す制御手段21は、入力設定手段23により設定されたつけ洗い時間に応じて、(表2)に示すように、つけ洗い行程を実行し、選択したつけ洗い時間によらず、撹拌時間の合計時間が一定になるようにしている。他の構成は上記実施例1と同じである。
【0039】
【表2】
Figure 0004241180
【0040】
つけ洗い時間1時間を選択すると、泡吐出行程1分、撹拌行程1分、つけおき行程3分で計5分のサイクルを12回繰り返すことになり、1時間で撹拌される積算撹拌時間は1
2分となる。2時間を選択したときは、泡吐出行程1分、撹拌行程1分、つけおき行程8分で計10分のサイクルを12回繰り返し、2時間で撹拌される積算撹拌時間は12分となり、選択時間によらず、積算撹拌時間は12分となる。
【0041】
このように本実施例によれば、選択したつけ洗い時間によらず、撹拌時間の合計時間が一定になるようにしたので、選択したつけ洗い時間によらず、撹拌による布傷みを防止することができる。
【0042】
なお、上記各実施例では、泡吐出行程では、泡だけを供給したが、泡だけでなく泡と洗剤液の混合したものを吐出してもよい。
【0043】
また、つけ洗い行程を、泡吐出行程と撹拌行程とつけおき行程の3つの行程で構成したが、撹拌行程とつけおき行程で構成してもよい。
【0044】
【発明の効果】
以上のように本発明の請求項1に記載の発明によれば、つけ洗い行程が泡吐出行程と撹拌行程とつけおき行程の3つ行程よりなり、この3つの行程を使用者により選択されたつけ洗い時間繰り返すようにしたので、泡吐出行程で、洗濯物に高濃度の洗剤液がしみ込むことになり、これによっても汚れが落ちやすい状態となり、撹拌行程で、洗濯物に機械力を加えることにより、泡を洗濯物全体に浸透させるとともに、洗濯物の位置を入れ換えることができ、つぎの泡吐出行程で、泡がより洗濯物全体にかかるようになり、洗いむらを低減でき、つけおき行程で、洗濯物の繊維の内部に残留する汚れにも時間をかけて洗剤成分を浸透させて分解することができるとともに、使用者が、汚れの程度に応じてつけ洗い時間を選択可能で、洗浄力を確保し、所要時間を適正化することができる。
【図面の簡単な説明】
【図1】 本発明の第1の実施例の洗濯機の縦断面図
【図2】 同洗濯機の外槽の一部切欠した斜視図
【図3】 同洗濯機の一部切欠した要部斜視図
【図4】 同洗濯機のブロック回路図
【図5】 洗剤分子をモデル的に表した図
【図6】 洗剤分子を水に溶かした状態を表したモデル図
【図7】 洗剤液中に気泡を通した場合のモデル図
【符号の説明】
2 内槽(洗濯槽)[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing machine that performs washing.
[0002]
[Prior art]
In general, dirt left for several days after wearing, such as batch washing, and oily dirt accumulated by repeated wearing and washing, etc., appear as yellowish if not sufficiently removed.
[0003]
Conventionally, in order to wash laundry with such stubborn stains, wash the soiled laundry with a detergent solution in the washing tub for a predetermined time, adsorb the surfactant and decompose the stains. After performing the washing process, the washing process was performed (see, for example, Patent Document 1).
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 7-185185
[Problems to be solved by the invention]
However, in such a conventional configuration, the washing time is constant regardless of the level of dirt, and the washing time cannot be changed according to the dirt, resulting in insufficient cleaning power or more than necessary time. It sometimes became long.
[0006]
The present invention solves the above-mentioned problems, and it is possible to select the time for the rinsing process according to the degree of dirt, and to optimize the time required for the rinsing process to ensure cleaning power. Yes.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides an outer tub, a washing tub rotatably disposed in the outer tub and containing laundry, a water supply valve for supplying water into the washing tub, and a water level in the outer tub. Control means for executing a series of processes such as washing, rinsing and dehydration by inputting the signal of the water level detection means and controlling the operation of the water supply valve, motor, etc. And the control means is capable of executing a detergent dissolving step for dissolving the detergent, a basin washing step for washing the laundry, and a main washing step in the washing step. When the water level detection means detects a predetermined water level lower than the normal washing water level, which is the water level in the main washing process, the water valve stops operating and the detergent dissolves the washing tub. After performing the detergent dissolution process, rotate the The process is carried out, and the rinsing process generates bubbles between the washing tub and the outer tub by rotating at a rotation speed higher than the rotation speed of the detergent dissolution process, and the generated bubbles are discharged into the washing tub. It consists of three steps: a foam discharge step, a stirring step for stirring the laundry, and a soaking step for putting the laundry on, and the three steps are repeated for the soaking time selected by the user. .
[0008]
As a result, a high-concentration detergent liquid soaks into the laundry during the foam discharge process, and this also makes it easy to remove dirt, and by applying mechanical force to the laundry during the stirring process, the foam is washed into the laundry. It is possible to change the position of the laundry as well as to infiltrate the whole, and in the next foam discharge process, the foam can be applied to the entire laundry more, the washing unevenness can be reduced, and the fiber of the laundry can be reduced in the extra process. In addition to being able to disintegrate and decompose the detergent components over time in the interior of the interior, you can select the application time for the application process according to the level of the application process. The required time can be optimized and cleaning power can be secured.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention includes an outer tub, a washing tub rotatably disposed in the outer tub and containing laundry, a water supply valve for supplying water into the washing tub, and the outer tub. Water level detecting means for detecting the water level in the inside, a motor for rotating the washing tub, and a signal of the water level detecting means are inputted to control operations of the water supply valve, the motor, etc., for washing, rinsing, dehydration, etc. And a control means for executing a series of processes, the control means being capable of executing a detergent dissolving process for dissolving the detergent, a washing process for washing the laundry, and a main washing process in the washing process. When the washing process is started, the water supply valve is operated to start water supply, and when the water level detecting means detects a predetermined water level lower than a normal washing water level which is a water level in the main washing process, the water supply valve Stop the operation of the washing tub with detergent After performing the detergent dissolving process of rotating at a rotational speed to be solved, the soaking process is performed, and the laundering process rotates the washing tub at a rotational speed higher than the rotational speed of the detergent dissolving process. In this manner, foam is generated between the washing tub and the outer tub, and a foam discharge process for discharging the generated foam into the washing tub, an agitation process for stirring the laundry, and the laundry are attached. consists of three strokes of Tsukeoki stroke, it said is obtained by the repeated selected put washing time by the user with three strokes, with foam discharge stroke, laundry in a high concentration detergent solution has sunk This also makes it easy to remove dirt. By applying mechanical force to the laundry during the stirring process, the foam can penetrate the entire laundry and the position of the laundry can be changed. During the exit process, the foam will spread more on the entire laundry, reducing the unevenness of washing, and during the leaving process, it will take time to disperse the detergent components inside the laundry fiber and decompose it. In addition, it is possible to select a soaking time for the soaking process according to the degree of dirt, and it is possible to optimize the time required for the soaking process and ensure the cleaning power.
[0010]
The invention according to claim 2 is the invention according to claim 1, wherein the control means, in the washing process, the longer the washing time selected by the user, the longer the washing selected by the user. The ratio of the stirring process time to the time is made small, and when the soaking time is set long, the ratio of the stirring process time is made small so that the soaking time can be set long. , Fabric damage due to stirring can be suppressed.
[0011]
The invention according to claim 3 is the invention according to claim 2, wherein the control means is configured such that the total time of the agitation process is constant regardless of the washing time selected by the user. Yes, it is possible to prevent cloth damage caused by stirring regardless of the selected washing time.
[0012]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0013]
(Example 1)
As shown in FIG. 1, an inner tub (washing tub) 2 is rotatably provided inside the outer tub 1, and the inner bottom of the inner tub 2 is rotatably agitated via a speed reduction mechanism 3. Wings 4 are provided. An outer tub cover 6 is provided at the upper opening of the outer tub 1 via a packing 5, and is hung from a housing 8 by a suspension bar 7.
[0014]
The motor 9 rotationally drives the inner tank 2 or the stirring blade 4 via the speed reduction mechanism 3. The water supply valve 10 supplies water into the inner tank 2, the water level detection means 11 detects the water level in the outer tank 1, and the drain valve 12 drains the detergent solution in the outer tank 1. is there.
[0015]
A foam chamber 13 positioned above the inner bottom 1a of the outer tub 1 is formed on the inner surface of the outer tub 1, and an opening at the top of the foam chamber 13 is attached to the outer tub cover 6 via a packing 5. The lid 14 (shown in FIG. 3) is hermetically sealed and a part of the circulation path 15 is formed in a part of the lid 14, and a foam discharge part 16 is disposed at the tip of the circulation path 15. is doing.
[0016]
Next, as shown in FIG. 2, the side plate 17 constituting the outer peripheral portion of the foam chamber 13 is formed so as to spread outward from the inner surface of the outer tub 1 in the rotational direction. A partition plate 18 for partitioning the inside of the tank 1 is provided. The guide plate 19 constituting the bottom surface of the bubble chamber 13 is formed to be curved upward in the rotational direction.
[0017]
Next, as shown in FIG. 3, the foam discharge section 16 has the foam discharge direction in the same direction as the rotation direction of the inner tank 2, and the discharged foam is from the substantially central part 2 a to the outer peripheral part 2 b of the inner tank 2. This is configured.
[0018]
The control device 20 is configured as shown in FIG. 4, and the control means 21 is constituted by a microcomputer, and controls operations of the motor 9, the water supply valve 10, the drain valve 12, etc. via the power switching means 22. A series of processes such as washing, rinsing and dehydration are sequentially controlled.
[0019]
Here, the control means 21 has a bath washing process executed at a water level lower than the normal washing water level as a previous process of the washing process, and allows the user to arbitrarily select the bath washing time of the bath washing process. The soaking process is performed by combining the stirring process and the soaking process in addition to the foam discharge process, and the ratio of the stirring time and soaking time is changed according to the selected soaking time.
[0020]
The input setting means 23 is for setting the driving course, washing time, etc., and the control means 21 inputs information from the input setting means 23 and displays it on the display means 24 based on the information and displays it to the user. Inform. Reference numeral 25 denotes a commercial power source, and 26 denotes a power switch.
[0021]
The operation in the above configuration will be described. After putting laundry and detergent into the inner tub 2, a course having a soaking process is set by the input setting means 23, and a soaking time is selected. When the operation is started, the control means 21 operates the water supply valve 10 to start water supply. When the water level detection means 11 detects a predetermined water level lower than the normal detergent liquid level (about ¼ of the washing water level), a signal is sent to the control means 21 and the operation of the water supply valve 10 is stopped.
[0022]
Thereafter, the process proceeds to the detergent dissolving process, and the motor 9 is driven by the control means 21 to rotate the inner tank 2. Since the rotation speed at this time is set lower than the subsequent foam stroke, the detergent is dissolved without discharging the detergent liquid from the foam discharge section 16 before the detergent is dissolved.
[0023]
Next, the soaking process is performed. The soaking process consists of repeating the foam discharge process, the stirring process, and the soaking process, and the soaking time set by the input setting means 23 is operated.
[0024]
In the foam discharge process, by rotating the inner tank 2 at a higher rotational speed than the detergent dissolution process, a large amount of air is fed into the detergent liquid between the inner tank 2 and the outer tank 1 to mix them, and a large amount of foam Will occur. And since the large amount of generated foam has a low specific gravity, it moves to the upper part of the detergent solution and vigorously enters the foam chamber 13 while rotating inside the outer tub 1. The bubbles that have entered the bubble chamber 13 are pumped upward by changing the velocity component from the horizontal direction to the vertical direction along the guide plate 19, and are then transferred from the bubble discharge unit 16 into the inner tank 2 through the circulation path 15. Discharge from above.
[0025]
At this time, since the foam discharge unit 16 has the foam discharge direction in the same direction as the rotation direction of the inner tub 2, the speed difference between the discharged foam and the laundry in the inner tub 1 or the inner tub 2 can be reduced. It is possible to prevent the falling foam from hitting the inner tub 2 or the laundry in the inner tub 2 and jumping off. Moreover, since the foam discharge part 16 is comprised so that the discharged foam may be applied from the substantially center part 2a of the inner tank 2 to the outer peripheral part 2b, the laundry in the inner tank 2 protrudes partially from the upper surface of a detergent liquid. Even if the inner tub 2 rotates, the foam can be applied evenly to the laundry in the inner tub 2.
[0026]
Here, the bubbles will be described in detail. In general, when the detergent molecule A is modeled, it is composed of a hydrophilic group a and a lipophilic group b as shown in FIG. Therefore, when the detergent is dissolved in water, as shown in FIG. 6, the detergent molecules A are aligned at the interface (water surface), and the detergent molecules that cannot be arranged exist individually or as micelles (groups) in the water. When the detergent molecules at the interface are removed, the detergent molecules in the water immediately move to the interface and replenish.
[0027]
Therefore, for example, as shown in FIG. 7, when the bubbles B are sent into the detergent liquid, the bubbles B rise to reach the interface, and are aligned with the interface to keep the detergent molecules A in the bubble curtain as they are. Will occur. That is, it becomes the foam C which arranged the detergent molecule | numerator A as much as possible, and a detergent density | concentration is high concentration.
At this time, the detergent molecules in the liquid move to replenish the detergent molecules carried away as bubbles, and if bubbles B are sent one after another, bubbles C are created one after another. At this time, the lipophilic group b is naturally directed to the inside and outside of the foam film.
[0028]
By passing the foam C thus created through the surface of the laundry or the laundry, the oil and the particulate soil adhering to the oil are bonded to the lipophilic group b and carried away. In addition, if the foam C breaks while passing through the laundry, a high-concentration detergent solution will permeate into the laundry, which also makes it easy to remove dirt.
[0029]
After the foam discharge process, a stirring process is performed. In the stirring process, the control means 21 drives the motor 9 to reverse the stirring blade 4. By reversing the stirring blade 4, mechanical force is applied to the laundry, so that the foam can permeate the entire laundry, and the position of the laundry can be changed. The unevenness of washing can be reduced. Furthermore, by performing the soaking step, it is possible to allow the detergent components to permeate and decompose the dirt remaining inside the laundry fibers over time. In addition, since the rinsing process is repeatedly performed a predetermined number of times, the cleaning power can be further improved and uneven washing can be reduced.
[0030]
The control means 21 executes the washing process as shown in (Table 1) according to the washing time set by the input setting means 23.
[0031]
[Table 1]
Figure 0004241180
[0032]
When a soaking time of 1 hour is selected, a cycle of 10 minutes is repeated 6 times with a foam discharge process of 1 minute, a stirring process of 1 minute, and a soaking process of 8 minutes. When 2 hours is selected, the first one hour is 1 minute for the foam discharge process, 1 minute for the agitation process, and 8 minutes for the soaking process. A total of 10 minutes is repeated 6 times for 1 hour to 2 hours. A cycle of 15 minutes in total of a discharge process of 1 minute, a stirring process of 1 minute, and a soaking process of 13 minutes is repeated four times, and an integrated stirring time of stirring for 2 hours is 10 minutes.
[0033]
Even when 9 hours is selected, the total stirring time for stirring is 20 minutes. Here, assuming that 9 hours is selected and the first one-hour cycle is repeated, the cumulative stirring time for stirring in 9 hours is 54 minutes, and severe fabric damage occurs.
[0034]
After the soaking process, the control means 21 operates the water supply valve 10 to start water supply. When the water level detection means 11 detects the set water level (normal washing water level), a signal is sent to the control means 21 and the operation of the water supply valve 10 is stopped. Then, the motor 9 is driven by the control means 21, the stirring blade 4 is reversed for a predetermined time, the main washing process is executed, and the dirt decomposed in the wet washing process is removed from the laundry to perform washing.
[0035]
As described above, according to the present embodiment, it is possible to arbitrarily select a soaking time for the soaking process in which the laundry is soaked, so that the soaking time for the soaking process is selected according to the degree of dirt. In addition, it is possible to optimize the time required for the rinsing process and ensure the cleaning power.
[0036]
Also, the soaking process is performed by combining the stirring process and the soaking process, and the ratio between the stirring time and soaking time is changed according to the selected soaking time. In such a case, by reducing the ratio of the stirring time, it is possible to suppress fabric damage due to stirring even if the washing time is set longer.
[0037]
In this embodiment, the laundry is put into the inner tub 2 rotatably disposed inside the outer tub 1 for washing. However, the outer tub 1 and the inner tub of the two layers are always required. Needless to say, a single-layer washing tub may be used without requiring 2.
[0038]
(Example 2)
The control means 21 shown in FIG. 4 executes a rinsing process as shown in (Table 2) in accordance with the rinsing time set by the input setting means 23, and agitation is performed regardless of the selected rinsing time. The total time is kept constant. Other configurations are the same as those of the first embodiment.
[0039]
[Table 2]
Figure 0004241180
[0040]
If a soaking time of 1 hour is selected, a cycle of 5 minutes with a foam discharge process of 1 minute, a stirring process of 1 minute, and a soaking process of 3 minutes will be repeated 12 times, and the total stirring time of stirring in 1 hour is 1
2 minutes. When 2 hours is selected, the foaming stroke is 1 minute, the stirring stroke is 1 minute, and the retentive stroke is 8 minutes. A total of 10 minutes is repeated 12 times, and the total stirring time that is stirred for 2 hours is 12 minutes. Regardless of the time, the total stirring time is 12 minutes.
[0041]
As described above, according to the present embodiment, since the total time of the stirring time is made constant regardless of the selected washing time, fabric damage caused by stirring is prevented regardless of the selected washing time. Can do.
[0042]
In each of the above embodiments, only the foam is supplied in the foam discharge process. However, not only the foam but also a mixture of the foam and the detergent liquid may be discharged.
[0043]
Moreover, although the soaking process was comprised in three processes, a foam discharge process, a stirring process, and a soaking process, you may comprise a stirring process and a soaking process.
[0044]
【The invention's effect】
According to the invention described in the claim 1 of the present invention as described above, put washing step is of three strokes of agitation stroke and soak stroke and foam discharge stroke, the three strokes is selected by the user Since the tapping time is repeated, a high concentration detergent solution is soaked in the laundry during the foam discharge process, which also makes it easy to remove dirt, and mechanical force is applied to the laundry during the stirring process. This allows the foam to permeate the entire laundry and change the position of the laundry, and in the next foam discharge process, the foam is applied to the entire laundry more, and washing unevenness can be reduced. In the process, the stain remaining inside the laundry fibers can also be decomposed by infiltrating the detergent components over time, and the user can select the wash time according to the degree of stain, Detergency Hoshi, it is possible to optimize the required time.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a washing machine according to a first embodiment of the present invention. FIG. 2 is a partially cutaway perspective view of an outer tub of the washing machine. Perspective view [Fig. 4] Block circuit diagram of the washing machine [Fig. 5] Model representing detergent molecules [Fig. 6] Model representing detergent molecules dissolved in water [Fig. 7] In detergent solution Model diagram when bubbles are passed through [Explanation of symbols]
2 Inner tub (washing tub)

Claims (3)

外槽と、前記外槽内に回転自在に配設され洗濯物を収容する洗濯槽と、前記洗濯槽内に給水する給水弁と、前記外槽内の水位を検知する水位検知手段と、前記洗濯槽を回転駆動するモータと、前記水位検知手段の信号を入力し前記給水弁、前記モータなどの動作を制御して洗濯、すすぎ、脱水などの一連の行程を実行する制御手段とを備え、前記制御手段は、洗濯行程において、洗剤を溶解する洗剤溶解行程と、前記洗濯物をつけ洗いするつけ洗い行程と、本洗い行程とを実行可能とし、前記洗濯行程が開始されると、前記給水弁を動作させて給水を開始し、前記水位検知手段が前記本洗い行程での水位である通常の洗濯水位より低い所定水位を検知すると前記給水弁の動作を停止し、前記洗濯槽を洗剤が溶解する回転数で回転させる前記洗剤溶解行程を実行した後、前記つけ洗い行程を実行するようにし、前記つけ洗い行程は、前記洗剤溶解行程の回転数より高い回転数で前記洗濯槽を回転させることで前記洗濯槽と前記外槽の間に泡を発生させ、前記発生した泡を前記洗濯槽内に吐出させる泡吐出行程と、前記洗濯物を撹拌する撹拌行程と、前記洗濯物をつけおくつけおき行程の3つ行程よりなり、前記3つの行程を使用者により選択されたつけ洗い時間繰り返すようにした洗濯機。An outer tub, a washing tub rotatably disposed in the outer tub, a laundry tub for supplying laundry, a water supply valve for supplying water into the washing tub, a water level detecting means for detecting a water level in the outer tub, A motor for rotationally driving the washing tub, and a control means for inputting a signal of the water level detection means and controlling the operation of the water supply valve, the motor and the like to execute a series of steps such as washing, rinsing and dehydration, In the washing process, the control means can execute a detergent dissolving process for dissolving a detergent, a basin washing process for washing the laundry, and a main washing process. When the washing process is started, the water supply When the water level detecting means detects a predetermined water level lower than the normal washing water level, which is the water level in the main washing process, the operation of the water supply valve is stopped, and the washing tub is washed with a detergent. Rotating at the number of revolutions to dissolve After the dissolution process is performed, the basin washing process is performed. In the basin washing process, the washing tub and the outer tub are rotated by rotating the washing tub at a higher rotational speed than the rotational speed of the detergent dissolution process. to generate bubbles during, and foam discharge stroke for discharging the generated bubbles to the washing tub, a stirring step for stirring the laundry, of three strokes of soak stroke to keep wearing the laundry A washing machine in which the above three steps are repeated for the washing time selected by the user. 制御手段は、つけ洗い行程において、使用者により選択されたつけ洗い時間が長い程、前記使用者により選択されたつけ洗い時間に対する撹拌行程の時間の比率を小さくするようにした請求項1記載の洗濯機。  2. The control means according to claim 1, wherein the ratio of the stirring stroke time to the washing time selected by the user is reduced as the washing time selected by the user is longer in the washing step. Washing machine. 制御手段は、使用者により選択されたつけ洗い時間によらず、撹拌行程の合計時間が一定になるようにした請求項2記載の洗濯機。  3. The washing machine according to claim 2, wherein the control means makes the total time of the stirring process constant regardless of the washing time selected by the user.
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JP7344028B2 (en) 2019-07-18 2023-09-13 シャープ株式会社 Washing machine and washing program
CN113774620A (en) * 2021-09-29 2021-12-10 珠海格力电器股份有限公司 Washing machine control method and device, electronic equipment and storage medium

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