JP4103226B2

JP4103226B2 - Washing machine

Info

Publication number: JP4103226B2
Application number: JP02757599A
Authority: JP
Inventors: 光市久保; 正訓竹川; 正光三原
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 1999-02-04
Filing date: 1999-02-04
Publication date: 2008-06-18
Anticipated expiration: 2019-02-04
Also published as: JP2000225289A

Description

【０００１】
【発明の属する技術分野】
本発明は、洗剤を効率的に溶解させて洗濯する洗濯機に関する。
【０００２】
【従来の技術】
従来、洗濯機は図６に示すように構成していた。以下、その構成について説明する。
【０００３】
図６に示すように、外槽２６は、底部に撹拌翼２７を回転自在に配設した洗濯兼脱水槽２８を内包し、吊り棒２９により洗濯機外枠３０に吊り下げている。モータ３１は、Ｖベルト３２および減速機構兼クラッチ３３を介して、撹拌翼２７または洗濯兼脱水槽２８を駆動する。排水弁３４は洗濯兼脱水槽２８内の洗濯水を排水し、給水弁３５は洗濯兼脱水槽２８内に給水するものである。
【０００４】
洗濯兼脱水槽２８には脱水時の振動を低減させるための流体バランサー３６を設け、洗濯兼脱水槽２８の上部には蓋３７を配設している。制御装置３８は、モータ３１、排水弁３４、給水弁３５などを制御して、洗濯、すすぎ、脱水の各行程を逐次制御するものである。
【０００５】
上記構成において動作を説明すると、洗濯兼脱水槽２８に洗濯物と所定量の洗剤を投入した後、動作を開始すると制御装置３８により給水弁３５を制御して洗濯兼脱水槽２８内に所定量の水を給水し、その後制御装置３８により、モータ３１を制御して撹拌翼２７を駆動する。撹拌翼２７の回転によって洗濯兼脱水槽２８内の洗濯物と水とが撹拌され、この攪拌によって洗剤を徐々に溶解して洗濯水となり、洗濯物の汚れに作用することとなる。
【０００６】
【発明が解決しようとする課題】
しかしながら、この構成の洗濯機の場合、投入された洗剤を溶解するために、撹拌翼２７を高速で回転させて洗濯物や水を攪拌するのが一般的であり、この場合、洗濯物に過度の機械力が加わり、洗濯物を傷めていまうという問題を有していた。
【０００７】
本発明は上記課題を解決するもので、洗濯行程前に洗剤溶解性を高めることで、洗濯物を傷めることなく、洗浄性能を向上し、洗いむらを低減するとともに、洗濯時間を短縮することを目的としている。
【０００８】
【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、洗濯物を収容する洗濯兼脱水槽を外槽に回転自在に収容して駆動手段により回転駆動し、給水弁により洗濯兼脱水槽内に水を給水し、水位検知手段により外槽内の水位を検知し、布量検知手段により洗濯兼脱水槽内の洗濯物の量を検知し、制御手段により水位検知手段および布量検知手段からの情報を入力し駆動手段および給水弁などの動作を制御することで洗濯、すすぎ、脱水などの一連の行程を逐次制御するとともに、洗濯兼脱水槽と外槽との間に洗剤を投下させるよう構成し、制御手段は、洗濯行程開始時において、給水弁を作動させて給水を行うと同時に、前記駆動手段を駆動して前記洗濯兼脱水槽が第１の所定回転数より低い回転数で回転するように制御し、水位検知手段が布量検知手段により検知した洗濯物の量に対応する洗濯時の水位より低い第１の所定水位を検知すると給水弁の動作を停止するとともに、駆動手段を駆動して洗濯兼脱水槽が前記第１の所定回転数で第１の所定時間の間回転するように制御することで洗濯兼脱水槽と外槽との間の洗剤を溶解させる行程を実行するようにし、布量検知手段により洗濯物の量が多いと検知した場合には、第１の所定時間の洗剤を溶解させる行程を第２の所定時間の間、間欠で複数回実行するようにしたものである。
【０００９】
これにより、洗濯行程前に洗剤溶解性を高めることができ、洗濯物を傷めることなく、洗浄性能を向上し、洗いむらを低減できるとともに、洗濯時間を短縮することでき、さらに、布量検知手段により検知した布量に応じた洗剤量によって洗濯兼脱水槽の回転により洗濯兼脱水槽と外槽との間の洗剤を溶解させる行程の回数を変更することにより、より洗剤の溶解を効率的に行うことができ、洗浄性能を向上し、洗いむらを低減することができるとともに、モータにかかる負荷を軽減することができる。
【００１０】
【発明の実施の形態】
本発明の請求項１に記載の発明は、洗濯物を収容する洗濯兼脱水槽と、前記洗濯兼脱水槽を回転自在に収容した外槽と、前記洗濯兼脱水槽を回転駆動する駆動手段と、前記洗濯兼脱水槽内に水を給水する給水弁と、前記外槽内の水位を検知する水位検知手段と、前記洗濯兼脱水槽内の洗濯物の量を検知する布量検知手段と、前記水位検知手段および布量検知手段からの情報を入力し前記駆動手段および給水弁などの動作を制御することで洗濯、すすぎ、脱水などの一連の行程を逐次制御する制御手段と、前記洗濯兼脱水槽と前記外槽との間に洗剤を直接投下させる手段とを備え、前記制御手段は、洗濯行程開始時において、前記給水弁を作動させて給水を行うと同時に、前記駆動手段を駆動して前記洗濯兼脱水槽が第１の所定回転数より低い回転数で回転するように制御し、前記水位検知手段が前記布量検知手段により検知した洗濯物の量に対応する洗濯時の水位より低い第１の所定水位を検知すると前記給水弁の動作を停止するとともに、前記駆動手段を駆動して前記洗濯兼脱水槽が前記第１の所定回転数で第１の所定時間の間回転するように制御することで前記洗濯兼脱水槽と前記外槽との間の洗剤を溶解させる行程を実行するようにし、前記布量検知手段により洗濯物の量が多いと検知した場合には、前記第１の所定時間の洗剤を溶解させる行程を第２の所定時間の間、間欠で複数回実行するようにしたものであり、布量検知手段により検知した布量に応じた洗剤量によって洗濯兼脱水槽の回転により洗濯兼脱水槽と外槽との間の洗剤を溶解させる行程の回数を変更することにより、より洗剤の溶解を効率的に行うことができ、洗浄性能を向上し、洗いむらを低減することができるとともに、モータにかかる負荷を軽減することができる。
【００１１】
請求項２に記載の発明は、洗濯物を収容する洗濯兼脱水槽と、前記洗濯兼脱水槽を回転自在に収容した外槽と、前記洗濯兼脱水槽を回転駆動する駆動手段と、前記洗濯兼脱水槽内に水を給水する給水弁と、前記外槽内の水位を検知する水位検知手段と、前記洗濯兼脱水槽内の洗濯物の量を検知する布量検知手段と、前記水位検知手段および布量検知手段からの情報を入力し前記駆動手段および給水弁などの動作を制御することで洗濯、すすぎ、脱水などの一連の行程を逐次制御する制御手段と、前記洗濯兼脱水槽と前記外槽との間に洗剤を直接投下させる手段とを備え、前記制御手段は、洗濯行程開始時において、前記給水弁を作動させて給水を行うと同時に、前記駆動手段を駆動して前記洗濯兼脱水槽が第１の所定回転数より低い回転数で回転するように制御し、前記水位検知手段が前記布量検知手段により検知した洗濯物の量に対応する洗濯時の水位より低い第１の所定水位を検知すると前記給水弁の動作を停止するとともに、前記駆動手段を駆動して前記洗濯兼脱水槽が前記第１の所定回転数で第１の所定時間の間回転するように制御することで前記洗濯兼脱水槽と前記外槽との間の洗剤を溶解させる行程を実行するようにし、前記布量検知手段により洗濯物の量が多いと検知した場合には、前記第１の所定回転数をそれより高い第２の所定回転数とし、前記布量検知手段により洗濯物の量が少ないと検知した場合には、前記第１の所定回転数をそれより低い第３の所定回転数とすることで、前記洗濯兼脱水槽の回転により前記洗濯兼脱水槽と外槽の間の水が上昇し前記洗濯兼脱水槽の上端部の高さを越えて前記洗濯兼脱水槽内に流入することが無いようにしたものであり、布量および洗剤量によって洗濯兼脱水槽の回転により洗濯兼脱水槽と外槽との間の洗剤を溶解させる行程の回転数を変更することにより、より洗剤の溶解を効率的に行うことができ、洗浄性能を向上し、洗いむらを低減することができるとともに、時間の短縮をすることができ、また、溶解されていない洗剤の洗濯兼脱水槽内への流入を防ぐことができる。
【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は、回転自在に配設した洗濯兼脱水槽２を内包し、吊り棒３により洗濯機外枠４に吊り下げている。モータ（駆動手段）５は、Ｖベルト６および減速機構７を介して洗濯兼脱水槽２および洗濯兼脱水槽２の内底部に回転自在に配設した攪拌翼８を回転駆動する。カバー体９は、外槽１の上部に設け、散水用の吐出部を形成するものである。
【００１４】
給水弁１０は、洗濯兼脱水槽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内の洗濯水を排水するものである。洗剤通路部１３は上方から粉末合成洗剤（液体洗剤でも可）などを投入することにより、洗剤を外槽１と洗濯兼脱水槽２との間に落下させるよう構成しており、洗剤を直接投下させる手段を形成している。環状の流体バランサー１４は脱水時の振動を低減するものである。
【００１５】
制御装置１５は、図２に示すように構成しており、制御手段１６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１７を介してモータ５、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。入力設定手段１８は、運転コース等を設定するもので、制御手段１６は入力設定手段１８からの情報を入力して、その情報を基に表示手段１９で表示して使用者に知らせる。記憶手段２０は、制御手段１６により制御するのに必要なデータを記憶している。なお、２１は商用電源、２２は電源スイッチである。
【００１６】
ここで、制御手段１６は、給水行程途中の所定水位Ｓ１において、洗濯兼脱水槽２の回転により外槽１と洗濯兼脱水槽２との間の洗剤を溶解させる行程を有している。
【００１７】
上記構成において動作を説明すると、洗濯兼脱水槽２内に洗濯物を投入し、洗剤通路部１３に洗剤を投入した後、運転を開始すると、制御手段１４によって、給水弁１０を作動させて給水を開始し、同時に、図３に示すように、洗濯兼脱水槽２が回転を始める。水位検知手段１１が所定水位Ｓ１を検知すると、給水弁１０の動作を停止し、洗濯兼脱水槽２の回転数を所定回転数Ｒ１まで上昇させる。洗濯兼脱水槽２の回転数が上昇することにより、外槽１と洗濯兼脱水槽２との間の洗剤（洗濯水）を攪拌する攪拌する力が増大し、外槽１と洗濯兼脱水槽２との間の洗剤は溶解される。洗濯兼脱水槽２の回転を所定時間Ｔ１行い、洗濯兼脱水槽２の回転を停止させ、再び給水弁１０を作動させて給水を開始し、水位検知手段１１が洗濯時の水位Ｓａを検知すると給水弁１０の動作を停止し、攪拌翼８を動作させ、洗濯行程を開始する。
【００１８】
このように、給水行程途中の所定水位Ｓ１において、洗濯兼脱水槽２の回転により外槽１と洗濯兼脱水槽２との間の洗剤を溶解させる行程を有しているので、洗濯行程前に洗剤溶解性を高めることができ、洗濯物を傷めることなく、洗浄性能を向上し、洗いむらを低減するとともに、洗濯時間を短縮することができる。
【００１９】
なお、本実施例では、洗濯時の水位Ｓａを検知すると、攪拌翼８を動作させて洗濯行程を開始するよう構成しているが、洗濯行程で、洗濯兼脱水槽２を回転させて、その遠心力により洗濯水を循環させて洗濯するようにしてもよい。
【００２０】
（実施例２）
図４に示すように、回転検知手段２３はホールＩＣなどで構成し、モータ５に取り付けている。布量検知手段２４は、洗濯兼脱水槽２内の洗濯物の量を検知するもので、回転検知手段２３の出力を入力し、洗濯兼脱水槽２内に洗濯物を投入した状態でモータ５により攪拌翼８を駆動した後、駆動を停止したときの攪拌翼８の回転数の低下度合いにより洗濯兼脱水槽２内の洗濯物の量を検知する。制御手段２５は、布量検知手段２４の信号を受けて複数存在する洗濯水位をどの水位に設定するか決定し、その水位を表示手段１９で表示し、布量検知後に給水および洗濯兼脱水槽２の回転を開始するようにしている。
【００２１】
また、制御手段２５は、布量検知手段２４の出力に応じて、洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程の有無を変更可能としている。他の構成は上記実施例１と同じである。
【００２２】
上記構成において動作を説明すると、洗濯兼脱水槽２内に洗濯物を投入した後、運転を開始すると、制御手段２５によってモータ５が作動して攪拌翼８が攪拌され、洗濯物を一定時間攪拌する。このとき、回転検知手段２３に生じる信号は布量検知手段２４に送られ、その信号によって洗濯兼脱水槽２内の洗濯物の布量を検知する。布量検知手段２４によって洗濯物の量を検知した後、制御手段２５は洗濯物の量に応じた洗濯時の水位を設定し、その水位を表示手段１９で表示する。使用者は表示手段１９で表示される洗濯時の水位に応じた洗剤を洗剤通路部１３に投入する。
【００２３】
ここで、洗濯兼脱水槽２内の洗濯物の量が少ないと検知し、洗濯時の水位が低い水位に設定された場合、投入される洗剤量は少なく、洗剤は洗濯行程中に攪拌翼８を回転させて洗濯物や水を攪拌することで容易に溶解できるため、洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程は行わないことで、時間の短縮をすることができる。
【００２４】
（実施例３）
図４における制御手段２５は、布量検知手段２４の出力に応じて、洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程を実行する水位を変更可能としている。他の構成は上記実施例２と同じである。
【００２５】
上記構成において動作を説明すると、洗濯兼脱水槽２内の洗濯物の量が多いと検知し、洗濯時の水位が高い水位に設定された場合、投入される洗剤量は多く、所定水位Ｓ１で洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程を行うと、洗剤溶解の効率は悪くなるため、所定水位Ｓ１より高い所定水位Ｓ２で洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程を行うことで、より洗剤の溶解を効率的に行うことができ、洗浄性能を向上し、洗いむらを低減することができる。
【００２６】
（実施例４）
図４における制御手段２５は、布量検知手段２４の出力に応じて、洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程の時間を変更可能としている。他の構成は上記実施例２と同じである。
【００２７】
上記構成において動作を説明すると、洗濯兼脱水槽２内の洗濯物の量が多いと検知し、洗濯時の水位が高い水位に設定された場合、投入される洗剤量は多く、所定時間Ｔ１の洗濯兼脱水槽２の回転では、洗剤は溶けきらないため、洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程を所定時間Ｔ１より長い所定時間Ｔ２行うことにより、より洗剤の溶解を効率的に行うことができ、洗浄性能を向上し、洗いむらを低減することができる。
【００２８】
（実施例５）
図４における制御手段２５は、布量検知手段２４の出力に応じて、洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程の回数を変更可能としている。他の構成は上記実施例２と同じである。
【００２９】
上記構成において図５を参照にしながら動作を説明すると、洗濯兼脱水槽２内の洗濯物の量が多いと検知し、洗濯時の水位が高い水位に設定された場合、投入される洗剤量は多く、所定時間Ｔ１の洗濯兼脱水槽２の回転では、洗剤は溶けきらない。そこで、洗濯兼脱水槽２の回転数を所定回転数Ｒ１で一定とし、所定時間Ｔ１より長い所定時間Ｔ２行った場合、モータ５に過大な負荷をかけてしまう。このため、所定時間Ｔ２で洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程の回数を多く、間欠にすることにより、より洗剤の溶解を効率的に行うことができ、洗浄性能を向上し、洗いむらを低減することができるとともに、モータ５にかかる負荷を軽減することができる。
【００３０】
（実施例６）
図４における制御手段２５は、布量検知手段２４の出力に応じて、洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程において、洗濯兼脱水槽２の回転数を変更可能としている。他の構成は上記実施例２と同じである。
【００３１】
上記構成において動作を説明すると、洗濯兼脱水槽２内の洗濯物の量が多いと検知し、洗濯時の水位が高い水位に設定された場合、投入される洗剤量は多く、所定回転数Ｒ１の洗濯兼脱水槽２の回転では、洗剤は溶けきらない。そこで、洗濯兼脱水槽２の回転数を所定回転数Ｒ１より高い回転数Ｒ２にすることにより、外槽１と洗濯兼脱水槽２との間の洗剤（洗濯水）を攪拌する攪拌する力が増え、より洗剤の溶解を効率的に行うことができ、また、洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程の時間は所定時間Ｔ１のままでよいため、時間の短縮にもなる。
【００３２】
また、洗濯兼脱水槽２内の洗濯物の量が少ない場合、所定回転数Ｒ１では洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の水が上昇し、洗濯兼脱水槽２の上端部の高さを越えて、外槽１の上部に設けられた散水用の吐出部より洗濯兼脱水槽２内へ溶けきれていない洗剤が流入してしまうため、回転数は所定回転数Ｒ１より低い所定回転数Ｒ０に設定されている。
【００３３】
このように、洗剤量および布量によって洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程の回転数を変更することにより、洗剤の溶解を効率的に行うことができ、洗浄性能を向上し、洗いむらを低減することができるとともに、時間の短縮をすることができ、また、溶解されていない洗剤の洗濯兼脱水槽２内への流入を防ぐことができる。
【００３４】
（実施例７）
図２における制御手段１６は、予約機能を有しており、使用者は洗濯終了時間を設定できるようにしている。また、制御手段１６は予約設定時に、洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程の時間を長くするようにしている。他の構成は上記実施例１と同じである。
【００３５】
上記構成において動作を説明すると、使用者が予約設定した場合（例えば、１２時間後洗濯終了）、洗剤通路部１３から投入された粉末合成洗剤は、洗濯兼脱水槽２の内底部に長時間（例えば、洗濯時間が１時間の場合、１１時間）放置された状態になってしまい、もし、洗濯兼脱水槽２の内底部に水があった場合、粉末合成洗剤は吸湿して固まってしまい非常に溶けにくくなっている。
【００３６】
そのため、予約設定時には洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程の時間を所定時間Ｔ１より長い所定時間Ｔ２にすることで、充分に洗剤の溶解を行うことにより、洗浄性能を向上し、洗いむらを低減することができる。
【００３７】
（実施例８）
図２における制御手段１６は、予約設定時に、洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程の回数を多くするようにしている。他の構成は上記実施例７と同じである。
【００３８】
上記構成において動作を説明すると、予約設定時には粉末合成洗剤は吸湿して固まってしまい非常に溶けにくくなっている。そこで、洗濯兼脱水槽２の回転を所定回転数Ｒ１一定のままで所定時間Ｔ１より長い所定時間Ｔ２行った場合、モータ５に過大な負荷をかけてしまう。そのため、予約設定時には所定時間Ｔ２で洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程の回数を多く、間欠にすることにより、充分に洗剤の溶解を行うことにより、洗浄性能を向上し、洗いむらを低減することができるとともに、モータ５にかかる負荷を軽減することができる。
【００３９】
（実施例９）
図２における制御手段１６は、予約設定時に、洗濯兼脱水槽２の回転により洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程において、洗濯兼脱水槽２の回転数を高くするようにしている。他の構成は上記実施例７と同じである。
【００４０】
上記構成において動作を説明すると、予約設定時には粉末合成洗剤は吸湿して固まってしまい非常に溶けにくくなっている。そのため、予約設定時には洗濯兼脱水槽２の回転数をより高い回転数にすることにより、外槽１と洗濯兼脱水槽２との間の洗剤（洗濯水）を攪拌する攪拌する力が増え、充分に洗剤の溶解を行うことにより、洗浄性能を向上し、洗いむらを低減することができるとともに、洗濯兼脱水槽２と外槽１との間の洗剤を溶解させる行程の時間は所定時間Ｔ１のままでよいため、時間の短縮をすることができる。
【００４１】
【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、洗濯物を収容する洗濯兼脱水槽と、前記洗濯兼脱水槽を回転自在に収容した外槽と、前記洗濯兼脱水槽を回転駆動する駆動手段と、前記洗濯兼脱水槽内に水を給水する給水弁と、前記外槽内の水位を検知する水位検知手段と、前記洗濯兼脱水槽内の洗濯物の量を検知する布量検知手段と、前記水位検知手段および布量検知手段からの情報を入力し前記駆動手段および給水弁などの動作を制御することで洗濯、すすぎ、脱水などの一連の行程を逐次制御する制御手段と、前記洗濯兼脱水槽と前記外槽との間に洗剤を直接投下させる手段とを備え、前記制御手段は、洗濯行程開始時において、前記給水弁を作動させて給水を行うと同時に、前記駆動手段を駆動して前記洗濯兼脱水槽が第１の所定回転数より低い回転数で回転するように制御し、前記水位検知手段が前記布量検知手段により検知した洗濯物の量に対応する洗濯時の水位より低い第１の所定水位を検知すると前記給水弁の動作を停止するとともに、前記駆動手段を駆動して前記洗濯兼脱水槽が前記第１の所定回転数で第１の所定時間の間回転するように制御することで前記洗濯兼脱水槽と前記外槽との間の洗剤を溶解させる行程を実行するようにし、前記布量検知手段により洗濯物の量が多いと検知した場合には、前記第１の所定時間の洗剤を溶解させる行程を第２の所定時間の間、間欠で複数回実行するようにしたから、布量検知手段により検知した布量に応じた洗剤量によって洗濯兼脱水槽の回転により洗濯兼脱水槽と外槽との間の洗剤を溶解させる行程の回数を変更することにより、より洗剤の溶解を効率的に行うことができ、洗浄性能を向上し、洗いむらを低減することができるとともに、モータにかかる負荷を軽減することができる。
【００４２】
また、請求項２に記載の発明によれば、洗濯物を収容する洗濯兼脱水槽と、前記洗濯兼脱水槽を回転自在に収容した外槽と、前記洗濯兼脱水槽を回転駆動する駆動手段と、前記洗濯兼脱水槽内に水を給水する給水弁と、前記外槽内の水位を検知する水位検知手段と、前記洗濯兼脱水槽内の洗濯物の量を検知する布量検知手段と、前記水位検知手段および布量検知手段からの情報を入力し前記駆動手段および給水弁などの動作を制御することで洗濯、すすぎ、脱水などの一連の行程を逐次制御する制御手段と、前記洗濯兼脱水槽と前記外槽との間に洗剤を直接投下させる手段とを備え、前記制御手段は、洗濯行程開始時において、前記給水弁を作動させて給水を行うと同時に、前記駆動手段を駆動して前記洗濯兼脱水槽が第１の所定回転数より低い回転数で回転するように制御し、前記水位検知手段が前記布量検知手段により検知した洗濯物の量に対応する洗濯時の水位より低い第１の所定水位を検知すると前記給水弁の動作を停止するとともに、前記駆動手段を駆動して前記洗濯兼脱水槽が前記第１の所定回転数で第１の所定時間の間回転するように制御することで前記洗濯兼脱水槽と前記外槽との間の洗剤を溶解させる行程を実行するようにし、前記布量検知手段により洗濯物の量が多いと検知した場合には、前記第１の所定回転数をそれより高い第２の所定回転数とし、前記布量検知手段により洗濯物の量が少ないと検知した場合には、前記第１の所定回転数をそれより低い第３の所定回転数とすることで、前記洗濯兼脱水槽の回転により前記洗濯兼脱水槽と外槽の間の水が上昇し前記洗濯兼脱水槽の上端部の高さを越えて前記洗濯兼脱水槽内に流入することが無いようにしたから、布量および洗剤量によって、洗濯兼脱水槽の回転により洗剤を溶解させる行程の回転数を変更することにより、より洗剤の溶解を効率的に行うことができ、洗浄性能を向上し、洗いむらを低減することができるとともに、時間の短縮をすることができ、また、溶解されていない洗剤の洗濯兼脱水槽内への流入を防ぐことができる。
【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】同洗濯機のブロック回路図
【図３】同洗濯機の要部動作タイムチャート
【図４】本発明の第２の実施例の洗濯機のブロック回路図
【図５】本発明の第５の実施例の洗濯機の要部動作タイムチャート
【図６】従来の洗濯機の縦断面図
【符号の説明】
１外槽
２洗濯兼脱水槽
５モータ（駆動手段）
１３洗剤通路部（洗剤を投下させる手段）
１６制御手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing machine that efficiently dissolves detergent and performs washing.
[0002]
[Prior art]
Conventionally, a washing machine is configured as shown in FIG. Hereinafter, the configuration will be described.
[0003]
As shown in FIG. 6, the outer tub 26 includes a washing / dehydrating tub 28 in which a stirring blade 27 is rotatably disposed at the bottom, and is hung from a washing machine outer frame 30 by a hanging rod 29. The motor 31 drives the stirring blade 27 or the washing and dewatering tub 28 via the V belt 32 and the speed reduction mechanism / clutch 33. The drain valve 34 drains the washing water in the washing / dehydrating tank 28, and the water supply valve 35 supplies water to the washing / dehydrating tank 28.
[0004]
The washing / dehydrating tub 28 is provided with a fluid balancer 36 for reducing vibration during dehydration, and a lid 37 is disposed on the upper portion of the washing / dehydrating tub 28. The control device 38 controls the motor 31, the drain valve 34, the water supply valve 35, etc., and sequentially controls each process of washing, rinsing and dehydration.
[0005]
The operation in the above configuration will be described. After the laundry and a predetermined amount of detergent are put into the washing and dewatering tub 28, when the operation is started, the control device 38 controls the water supply valve 35 to put the predetermined amount in the washing and dewatering tub 28. Then, the control device 38 controls the motor 31 to drive the stirring blade 27. The laundry and water in the washing and dewatering tub 28 are agitated by the rotation of the agitating blade 27, and this agitation gradually dissolves the detergent into washing water, which acts on the dirt on the laundry.
[0006]
[Problems to be solved by the invention]
However, in the case of a washing machine having this configuration, in order to dissolve the introduced detergent, it is common to rotate the stirring blade 27 at high speed to stir the laundry or water. As a result, the machine power was added and the laundry was damaged.
[0007]
The present invention solves the above-mentioned problems by improving the detergent solubility before the washing process, improving the washing performance without damaging the laundry, reducing washing unevenness, and shortening the washing time. It is aimed.
[0008]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention achieves the above object by rotatably storing a washing / dehydrating tub for storing laundry in an outer tub and rotating it by driving means, and supplying water into the washing / dehydrating tub by a water supply valve. The water level detection means detects the water level in the outer tub, the cloth amount detection means detects the amount of laundry in the washing / dehydration tub, and the control means inputs information from the water level detection means and the cloth amount detection means. By controlling the operation of the driving means and the water supply valve, etc., the series of steps such as washing, rinsing and dehydration are sequentially controlled, and the detergent is dropped between the washing / dehydrating tub and the outer tub, and the control means is at the start washing process, by operating the water supply valve rows feedwater Utodojini, the washing and dewatering tank is controlled to rotate at a lower rotational speed than the first predetermined rotational speed by driving the drive means The water level detection means is And detecting a first predetermined level lower than the water level of the washing which corresponds to the amount of the detected laundry stops the operation of the water supply valve, a predetermined rotational speed the washing and dewatering tank is the first by driving the driving means The process of dissolving the detergent between the washing and dehydrating tub and the outer tub is executed by controlling to rotate for the first predetermined time at the time when the amount of laundry is large by the cloth amount detecting means If detected, the process of dissolving the detergent for the first predetermined time is intermittently executed a plurality of times for the second predetermined time.
[0009]
As a result, it is possible to increase the detergent solubility before the washing process, improve the washing performance without damaging the laundry, reduce washing unevenness, reduce the washing time, and further, the cloth amount detection means By changing the number of steps to dissolve the detergent between the washing / dehydrating tub and the outer tub by rotating the washing / dehydrating tub according to the amount of detergent detected according to the above, the detergent can be dissolved more efficiently. It is possible to improve the cleaning performance, reduce the unevenness of washing, and reduce the load on the motor.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention includes a washing and dewatering tub for storing laundry, an outer tub for rotatably storing the washing and dewatering tub, and a driving means for rotationally driving the washing and dewatering tub. A water supply valve for supplying water into the washing / dehydrating tub, a water level detecting means for detecting the water level in the outer tub, and a cloth amount detecting means for detecting the amount of laundry in the washing / dehydrating tub, Control means for sequentially controlling a series of processes such as washing, rinsing and dehydration by inputting information from the water level detecting means and the cloth amount detecting means and controlling operations of the driving means and the water supply valve, and the washing and means for dropping the detergent directly between the outer tub and drying tub, wherein, at the start the washing process, the operates the water supply valve rows feedwater Utodojini, drives the drive means The washing and dewatering tank is lower than the first predetermined rotation speed Controlled to rotate at rotation speed, and the water level detecting means detects the first predetermined level lower than the water level of the washing which corresponds to the amount of laundry detected by the laundry amount detecting means for operation of the water supply valve It is stopped, and the outer tub and the washing and dewatering tank by the washing and dewatering tank by driving the driving means is controlled to rotate between the first predetermined time at the first predetermined rotational speed A process of dissolving the detergent is performed, and when the amount of laundry is detected by the cloth amount detecting means, the process of dissolving the detergent for the first predetermined time is set to the second predetermined process. It is intended to be executed multiple times intermittently for a period of time, and between the washing and dehydrating tub and the outer tub by the rotation of the washing and dehydrating tub by the amount of detergent according to the amount of cloth detected by the cloth amount detecting means Changing the number of steps to dissolve the detergent More and more the dissolution of the detergent efficiently can be performed to improve the cleaning performance, it is possible to reduce the washing unevenness, it is possible to reduce the load on the motor.
[0011]
According to a second aspect of the present invention, there is provided a washing / dehydrating tub for storing laundry, an outer tub for rotatably storing the washing / dehydrating tub, driving means for rotationally driving the washing / dehydrating tub, and the washing A water supply valve for supplying water into the cum dewatering tank, a water level detecting means for detecting the water level in the outer tub, a cloth amount detecting means for detecting the amount of laundry in the washing / dehydrating tank, and the water level detection Control means for sequentially controlling a series of processes such as washing, rinsing and dehydration by inputting information from the means and the cloth amount detecting means and controlling operations of the driving means and the water supply valve, and the washing and dehydrating tub. and means for dropping the detergent directly between the outer tub, wherein, at the start the washing process, the operates the water supply valve rows feedwater Utodojini, the washing by driving the driving means The dehydration tank is at a lower speed than the first predetermined speed. Controlled to be rolling, together with the water level detection means stops the operation of the laundry weight lower than the water level of the washing which corresponds to the amount of laundry detected by the detecting means first the water supply valve and detects the predetermined water level , the washing and dewatering tank by driving the drive means between the washing and dewatering tank and the outer tub by controlling to rotate between the first predetermined time at the first predetermined rotational speed The process of dissolving the detergent is performed, and when the amount of laundry is detected by the cloth amount detection means, the first predetermined rotation speed is set to a second predetermined rotation speed higher than the first predetermined rotation speed, When it is detected by the cloth amount detection means that the amount of laundry is small, the first predetermined rotation speed is set to a third predetermined rotation speed lower than the first predetermined rotation speed, so that the washing / dehydration tub rotates to rotate the laundry. The water between the cum dewatering tank and the outer tub rises and the washing The washing / dehydrating tub and the outer tub are rotated by the rotation of the washing / dehydrating tub according to the amount of cloth and the amount of detergent. By changing the rotation speed of the process of dissolving the detergent between the two, the detergent can be dissolved more efficiently, improving the cleaning performance, reducing the unevenness of washing, and shortening the time In addition, it is possible to prevent the undissolved detergent from flowing into the washing / dehydrating tank.
[0012]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0013]
(Example 1)
As shown in FIG. 1, the outer tub 1 includes a washing and dewatering tub 2 that is rotatably arranged, and is suspended from a washing machine outer frame 4 by a suspension bar 3. The motor (driving means) 5 rotationally drives the washing / dehydrating tub 2 and the agitation blade 8 rotatably disposed on the inner bottom portion of the washing / dehydrating tub 2 via the V belt 6 and the speed reduction mechanism 7. The cover body 9 is provided in the upper part of the outer tub 1, and forms the discharge part for watering.
[0014]
The water supply valve 10 supplies water into the washing and dewatering tub 2, the water level detection means 11 detects the water level in the outer tub 1, and the drain valve 12 supplies the washing water in the outer tub 1. It is what drains. The detergent passage 13 is configured to drop the detergent between the outer tub 1 and the washing and dehydrating tub 2 by pouring powder synthetic detergent (or liquid detergent) from above, and the detergent is dropped directly. Forming means to make. The annular fluid balancer 14 reduces vibration during dehydration.
[0015]
The control device 15 is configured as shown in FIG. 2, and the control means 16 is constituted by a microcomputer, and controls the operation of the motor 5, the water supply valve 10, the drain valve 12, etc. via the power switching means 17. A series of processes such as washing, rinsing and dehydration are sequentially controlled. The input setting means 18 sets a driving course or the like, and the control means 16 inputs information from the input setting means 18 and displays it on the display means 19 based on the information to notify the user. The storage unit 20 stores data necessary for control by the control unit 16. In addition, 21 is a commercial power source and 22 is a power switch.
[0016]
Here, the control means 16 has a process of dissolving the detergent between the outer tub 1 and the washing / dehydrating tub 2 by the rotation of the washing / dehydrating tub 2 at a predetermined water level S1 in the middle of the water supply process.
[0017]
The operation in the above configuration will be described. When the laundry is put into the washing and dewatering tub 2 and the detergent is introduced into the detergent passage portion 13, when the operation is started, the control means 14 operates the water supply valve 10 to supply water. At the same time, as shown in FIG. 3, the washing and dewatering tub 2 starts to rotate. When the water level detection means 11 detects the predetermined water level S1, the operation of the water supply valve 10 is stopped, and the rotation speed of the washing and dewatering tub 2 is increased to the predetermined rotation speed R1. As the rotational speed of the washing / dehydrating tub 2 increases, the stirring force for stirring the detergent (washing water) between the outer tub 1 and the washing / dehydrating tub 2 increases, and the outer tub 1 and the washing / dehydrating tub 2 increase. The detergent between 2 is dissolved. The rotation of the washing / dehydrating tub 2 is performed for a predetermined time T1, the rotation of the washing / dehydrating tub 2 is stopped, the water supply valve 10 is actuated again to start water supply, and the water level detecting means 11 detects the water level Sa during washing. The operation of the water supply valve 10 is stopped, the stirring blade 8 is operated, and the washing process is started.
[0018]
As described above, at the predetermined water level S1 in the middle of the water supply process, the washing / dehydrating tub 2 rotates to dissolve the detergent between the outer tub 1 and the washing / dehydrating tub 2. Therefore, before the washing process Detergent solubility can be increased, washing performance can be improved, washing unevenness can be reduced, and washing time can be shortened without damaging the laundry.
[0019]
In the present embodiment, when the water level Sa at the time of washing is detected, the stirring blade 8 is operated to start the washing process. In the washing process, the washing and dewatering tub 2 is rotated, and the washing process is started. You may make it wash by circulating washing water with a centrifugal force.
[0020]
(Example 2)
As shown in FIG. 4, the rotation detecting means 23 is constituted by a Hall IC or the like and is attached to the motor 5. The cloth amount detecting means 24 detects the amount of laundry in the washing / dehydrating tub 2, receives the output of the rotation detecting means 23, and puts the laundry into the washing / dehydrating tub 2 while the motor 5 is in the state. After the agitating blade 8 is driven by the above, the amount of laundry in the washing and dewatering tub 2 is detected by the degree of decrease in the rotational speed of the agitating blade 8 when the driving is stopped. The control means 25 receives the signal from the cloth amount detection means 24, decides which water level is to be set, and displays the water level on the display means 19, and after the cloth amount is detected, the water supply and washing / dehydration tank The rotation of 2 is started.
[0021]
Further, the control means 25 can change the presence or absence of a process of dissolving the detergent between the washing / dehydrating tub 2 and the outer tub 1 by the rotation of the washing / dehydrating tub 2 according to the output of the cloth amount detecting means 24. Yes. Other configurations are the same as those of the first embodiment.
[0022]
The operation in the above configuration will be described. When the operation is started after the laundry is put into the washing and dewatering tub 2, the motor 5 is actuated by the control means 25 to stir the stirring blade 8, and the laundry is stirred for a certain period of time. To do. At this time, a signal generated in the rotation detecting means 23 is sent to the cloth amount detecting means 24, and the cloth amount of the laundry in the washing and dewatering tub 2 is detected by the signal. After the amount of laundry is detected by the cloth amount detection means 24, the control means 25 sets the water level at the time of washing according to the amount of laundry and displays the water level on the display means 19. The user inputs a detergent corresponding to the water level at the time of washing displayed on the display means 19 into the detergent passage portion 13.
[0023]
Here, when it is detected that the amount of laundry in the washing and dewatering tub 2 is small and the water level at the time of washing is set to a low water level, the amount of detergent to be added is small, and the detergent is mixed with the stirring blade 8 during the washing process. Since the laundry and water can be easily dissolved by rotating the laundry and the water, the washing and dewatering tub 2 is not rotated to dissolve the detergent between the washing and dewatering tub 2 and the outer tub 1. , Time can be shortened.
[0024]
(Example 3)
The control means 25 in FIG. 4 determines the water level for executing the process of dissolving the detergent between the washing / dehydrating tub 2 and the outer tub 1 by the rotation of the washing / dehydrating tub 2 according to the output of the cloth amount detecting means 24. It can be changed. Other configurations are the same as those of the second embodiment.
[0025]
The operation in the above configuration will be described. When the amount of laundry in the washing and dewatering tub 2 is detected and the water level at the time of washing is set to a high water level, the amount of detergent to be added is large and the predetermined water level S1 When the process of dissolving the detergent between the washing / dehydrating tub 2 and the outer tub 1 by the rotation of the washing / dehydrating tub 2 is performed, the efficiency of the detergent dissolution deteriorates. By performing the process of dissolving the detergent between the washing and dewatering tank 2 and the outer tank 1 by the rotation of the dewatering tank 2, the detergent can be dissolved more efficiently, improving the cleaning performance, and washing unevenness. Can be reduced.
[0026]
Example 4
The control means 25 in FIG. 4 can change the time of the process of dissolving the detergent between the washing / dehydrating tub 2 and the outer tub 1 by the rotation of the washing / dehydrating tub 2 according to the output of the cloth amount detecting means 24. It is said. Other configurations are the same as those of the second embodiment.
[0027]
Describing the operation in the above configuration, when it is detected that the amount of laundry in the washing and dewatering tub 2 is large and the water level at the time of washing is set to a high water level, the amount of detergent to be introduced is large, and the predetermined time T1 In the rotation of the washing / dehydrating tub 2, the detergent does not completely dissolve. Therefore, by performing the process of dissolving the detergent between the washing / dehydrating tub 2 and the outer tub 1 for a predetermined time T2 longer than the predetermined time T1, Dissolution can be performed efficiently, washing performance can be improved, and washing unevenness can be reduced.
[0028]
(Example 5)
The control means 25 in FIG. 4 can change the number of steps of dissolving the detergent between the washing / dehydrating tub 2 and the outer tub 1 by the rotation of the washing / dehydrating tub 2 according to the output of the cloth amount detecting means 24. It is said. Other configurations are the same as those of the second embodiment.
[0029]
When the operation is described with reference to FIG. 5 in the above configuration, when the amount of laundry in the washing and dewatering tub 2 is detected and the water level at the time of washing is set to a high water level, the amount of detergent to be added is In many cases, the detergent does not completely dissolve in the rotation of the washing and dewatering tub 2 at the predetermined time T1. Therefore, when the rotation speed of the washing / dehydrating tub 2 is constant at the predetermined rotation speed R1 and the predetermined time T2 is longer than the predetermined time T1, an excessive load is applied to the motor 5. For this reason, the washing / dehydrating tub 2 is rotated at a predetermined time T2 to increase the number of steps of dissolving the detergent between the washing / dehydrating tub 2 and the outer tub 1 and make the detergent more efficient by making the process intermittent. Thus, the washing performance can be improved, uneven washing can be reduced, and the load on the motor 5 can be reduced.
[0030]
(Example 6)
In the process of dissolving the detergent between the washing / dehydrating tub 2 and the outer tub 1 by the rotation of the washing / dehydrating tub 2, the control means 25 in FIG. The rotation speed of the water tank 2 can be changed. Other configurations are the same as those of the second embodiment.
[0031]
The operation will be described in the above configuration. When it is detected that the amount of laundry in the washing and dewatering tub 2 is large and the water level at the time of washing is set to a high water level, the amount of detergent to be introduced is large and the predetermined rotation speed R1 When the washing / dehydrating tub 2 is rotated, the detergent does not completely dissolve. Therefore, by setting the rotational speed of the washing / dehydrating tub 2 to a rotational speed R2 higher than the predetermined rotational speed R1, the stirring force for stirring the detergent (washing water) between the outer tub 1 and the washing / dehydrating tub 2 is increased. The detergent can be dissolved more efficiently, and the time for the process of dissolving the detergent between the washing and dewatering tub 2 and the outer tub 1 can be kept at the predetermined time T1, so the time can be shortened. It also becomes.
[0032]
Further, when the amount of laundry in the washing / dehydrating tub 2 is small, the water between the washing / dehydrating tub 2 and the outer tub 1 rises due to the rotation of the washing / dehydrating tub 2 at the predetermined rotation speed R1, and the washing / dehydrating tub 2 rotates. Since the undissolved detergent flows into the washing and dehydrating tub 2 from the sprinkling outlet provided on the upper part of the outer tub 1 beyond the height of the upper end of the dewatering tub 2, the rotational speed is The predetermined rotational speed R0 is set lower than the predetermined rotational speed R1.
[0033]
Thus, by changing the rotation speed of the process of dissolving the detergent between the washing / dehydrating tub 2 and the outer tub 1 by the rotation of the washing / dehydrating tub 2 according to the amount of detergent and the amount of cloth, the dissolution of the detergent is made efficient. Cleaning performance can be improved, washing unevenness can be reduced, time can be shortened, and undissolved detergent can flow into the washing and dewatering tub 2. Can be prevented.
[0034]
(Example 7)
The control means 16 in FIG. 2 has a reservation function so that the user can set the washing end time. Further, the control means 16 increases the time of the process of dissolving the detergent between the washing / dehydrating tub 2 and the outer tub 1 by the rotation of the washing / dehydrating tub 2 at the time of reservation setting. Other configurations are the same as those of the first embodiment.
[0035]
The operation in the above configuration will be described. When the user makes a reservation setting (for example, the washing is finished after 12 hours), the powdered synthetic detergent charged from the detergent passage 13 is placed on the inner bottom of the washing and dehydrating tank 2 for a long time ( For example, if the washing time is 1 hour, it will be left for 11 hours. If there is water on the inner bottom of the washing and dehydrating tub 2, the powdered synthetic detergent absorbs moisture and hardens. It is difficult to dissolve.
[0036]
Therefore, at the time of reservation setting, the washing and dehydrating tub 2 is rotated to set the predetermined time T2 longer than the predetermined time T1 for the process of dissolving the detergent between the washing and dehydrating tub 2 and the outer tub 1. By performing dissolution, cleaning performance can be improved and uneven washing can be reduced.
[0037]
(Example 8)
The control means 16 in FIG. 2 increases the number of steps of dissolving the detergent between the washing / dehydrating tub 2 and the outer tub 1 by the rotation of the washing / dehydrating tub 2 at the time of reservation setting. Other configurations are the same as those of the seventh embodiment.
[0038]
The operation of the above configuration will be described. At the time of reservation setting, the powdered synthetic detergent absorbs moisture and hardens, making it very difficult to dissolve. Therefore, when the rotation of the washing / dehydrating tub 2 is performed for a predetermined time T2 longer than the predetermined time T1 while the predetermined rotation speed R1 is kept constant, an excessive load is applied to the motor 5. Therefore, at the time of reservation setting, the washing / dehydrating tub 2 is rotated at a predetermined time T2 so that the detergent between the washing / dehydrating tub 2 and the outer tub 1 is dissolved many times. By performing the dissolution, it is possible to improve the cleaning performance, reduce the unevenness of washing, and reduce the load on the motor 5.
[0039]
Example 9
The control means 16 in FIG. 2 increases the rotation speed of the washing / dehydrating tub 2 in the process of dissolving the detergent between the washing / dehydrating tub 2 and the outer tub 1 by the rotation of the washing / dehydrating tub 2 at the time of reservation setting. Like to do. Other configurations are the same as those of the seventh embodiment.
[0040]
The operation of the above configuration will be described. At the time of reservation setting, the powdered synthetic detergent absorbs moisture and hardens, making it very difficult to dissolve. Therefore, at the time of reservation setting, by increasing the rotation speed of the washing and dewatering tub 2, the stirring force for stirring the detergent (washing water) between the outer tub 1 and the washing and dewatering tank 2 is increased. By sufficiently dissolving the detergent, the washing performance can be improved and uneven washing can be reduced, and the process time for dissolving the detergent between the washing / dehydrating tank 2 and the outer tank 1 is a predetermined time T1. The time can be shortened because it is sufficient.
[0041]
【The invention's effect】
As described above, according to the first aspect of the present invention, the washing / dehydrating tub for storing the laundry, the outer tub for rotatably storing the washing / dehydrating tub, and the washing / dehydrating tub are provided. Rotating drive means, water supply valve for supplying water into the washing / dehydrating tub, water level detecting means for detecting the water level in the outer tub, and detecting the amount of laundry in the washing / dehydrating tub Control for sequentially controlling a series of processes such as washing, rinsing and dehydration by inputting information from the cloth amount detecting means and the water level detecting means and the cloth amount detecting means and controlling the operation of the driving means and the water supply valve. means a direct and means for dropping, the control means detergent between the washing and dewatering tank and the outer tank, the washing at the stroke start actuates the supply valve rows feedwater Utodojini, The washing and dewatering tub is driven by driving the driving means. Wherein the controlled so as to rotate at a lower rotational speed than the constant rotation speed, the water level detecting means detects the first predetermined level lower than the water level of the washing which corresponds to the amount of laundry detected by the laundry amount detecting means It stops the operation of the water supply valve, the washing and dewatering tank by the washing and dewatering tank by driving the driving means is controlled to rotate between the first predetermined time at the first predetermined rotational speed A process of dissolving the detergent between the outer tub and the outer tub, and a process of dissolving the detergent for the first predetermined time when the cloth amount detecting means detects that the amount of laundry is large. Is intermittently executed a plurality of times during the second predetermined time, and the washing and dehydrating tub and the outer tub are rotated by the rotation of the washing and dehydrating tub according to the amount of detergent detected by the cloth amount detecting means. The number of steps to dissolve the detergent between By further, it can be performed more the dissolution of the detergent efficiently, improve cleaning performance, it is possible to reduce the washing unevenness, it is possible to reduce the load on the motor.
[0042]
According to the second aspect of the present invention, the washing and dewatering tub for storing the laundry, the outer tub for rotatably storing the washing and dewatering tub, and the driving means for rotationally driving the washing and dewatering tub. A water supply valve for supplying water into the washing / dehydrating tub, a water level detecting means for detecting the water level in the outer tub, and a cloth amount detecting means for detecting the amount of laundry in the washing / dehydrating tub A control means for sequentially controlling a series of processes such as washing, rinsing and dehydration by inputting information from the water level detecting means and the cloth amount detecting means and controlling operations of the driving means and the water supply valve; and the washing and means for dropping the detergent directly between and dewatering tank and the outer tank, wherein, at the start the washing process, the operates the water supply valve rows feedwater Utodojini, drives the drive means And the washing and dewatering tub is at a first predetermined rotational speed Controlled to rotate at There speed operation of the water level detecting means detects the first predetermined level lower than the water level of the washing which corresponds to the amount of laundry detected by the laundry amount detecting means and the water supply valve stops the said outer tub and the washing and dewatering tank by the washing and dewatering tank by driving the driving means is controlled to rotate between the first predetermined time at the first predetermined rotational speed A step of dissolving the detergent between the first predetermined rotation number and the second predetermined rotation number higher than the first predetermined rotation number is detected by the cloth amount detection means. When the amount of laundry is detected by the cloth amount detection means, the first predetermined rotation speed is set to a third predetermined rotation speed lower than that, thereby The water between the washing / dehydrating tub and the outer tub rises due to the rotation. Since the washing / dehydrating tub does not flow into the washing / dehydrating tub, the detergent is dissolved by the rotation of the washing / dehydrating tub according to the amount of cloth and the amount of detergent. By changing the number of rotations of the stroke, the detergent can be more efficiently dissolved, the cleaning performance can be improved, washing unevenness can be reduced, and the time can be shortened. It is possible to prevent the undissolved detergent from flowing into the washing / dehydrating tank.
[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 block circuit diagram of the washing machine. FIG. 3 is an operation time chart of main parts of the washing machine. Block circuit diagram of the washing machine of the second embodiment [FIG. 5] FIG. 6 is an operation time chart of the main part of the washing machine of the fifth embodiment of the present invention.
1 Outer tub 2 Washing / dehydration tub 5 Motor (driving means)
13 Detergent passage (means for dropping detergent)
16 Control means

Claims

A washing / dehydrating tub for storing laundry, an outer tub for rotatably storing the washing / dehydrating tub, a driving means for rotationally driving the washing / dehydrating tub, and supplying water into the washing / dehydrating tub Information from the water supply valve, the water level detecting means for detecting the water level in the outer tub, the cloth amount detecting means for detecting the amount of laundry in the washing and dewatering tub, and the water level detecting means and the cloth amount detecting means And a control means for sequentially controlling a series of processes such as washing, rinsing and dehydration by controlling the operation of the driving means and the water supply valve, and a detergent between the washing / dehydrating tub and the outer tub. and means for directly invested by, wherein, at the start the washing process, the operates the water supply valve rows feedwater Utodojini, the washing and dewatering tank is first given rotation by driving the drive means controlled to rotate at below a few rpm, before When the water level detecting means detects a first predetermined water level lower than the water level at the time of washing corresponding to the amount of laundry detected by the cloth amount detecting means, the operation of the water supply valve is stopped and the driving means is driven. executing a process of dissolving the detergent between the washing and dewatering tank and the outer tank by the washing and dewatering tank is controlled to rotate between the first predetermined time at the first predetermined rotational speed Thus, when the laundry amount detecting means detects that the amount of laundry is large, the process of dissolving the detergent for the first predetermined time is intermittently executed a plurality of times for the second predetermined time. Washing machine.

A washing / dehydrating tub for storing laundry, an outer tub for rotatably storing the washing / dehydrating tub, a driving means for rotationally driving the washing / dehydrating tub, and supplying water into the washing / dehydrating tub Information from the water supply valve, the water level detecting means for detecting the water level in the outer tub, the cloth amount detecting means for detecting the amount of laundry in the washing and dewatering tub, and the water level detecting means and the cloth amount detecting means And a control means for sequentially controlling a series of processes such as washing, rinsing and dehydration by controlling the operation of the driving means and the water supply valve, and a detergent between the washing / dehydrating tub and the outer tub. and means for directly invested by, wherein, at the start the washing process, the operates the water supply valve rows feedwater Utodojini, the washing and dewatering tank is first given rotation by driving the drive means controlled to rotate at below a few rpm, before When the water level detecting means detects a first predetermined water level lower than the water level at the time of washing corresponding to the amount of laundry detected by the cloth amount detecting means, the operation of the water supply valve is stopped and the driving means is driven. executing a process of dissolving the detergent between the washing and dewatering tank and the outer tank by the washing and dewatering tank is controlled to rotate between the first predetermined time at the first predetermined rotational speed Thus, when the cloth amount detection means detects that the amount of laundry is large, the first predetermined rotation speed is set to a second predetermined rotation speed higher than that, and the cloth amount detection means detects the amount of laundry. When it is detected that the amount is small, the first predetermined rotational speed is set to a third predetermined rotational speed lower than the first predetermined rotational speed, so that the rotation of the washing / dehydrating tank causes the space between the washing / dehydrating tank and the outer tub. The water rises and the height of the upper end of the washing / dehydrating tub is increased. Ete washing machine so that no flowing into the washing and dewatering in the water tank.