JP4103245B2

JP4103245B2 - Washing machine

Info

Publication number: JP4103245B2
Application number: JP14286099A
Authority: JP
Inventors: 優子大村; 裕幸藤井
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 1999-05-24
Filing date: 1999-05-24
Publication date: 2008-06-18
Anticipated expiration: 2019-05-24
Also published as: JP2000325690A

Description

【０００１】
【発明の属する技術分野】
本発明は、洗濯水を循環して、洗濯、すすぎを行う洗濯機に関する。
【０００２】
【従来の技術】
従来、この種の洗濯機は図７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７に示すように、外槽１７は、底部に攪拌翼１８を回転自在に配設した洗濯兼脱水槽１９を内包し、吊り棒２０により洗濯機外枠２１に吊り下げている。モータ２２は、Ｖベルト２３および減速機構兼クラッチ２４を介して、攪拌翼１８または洗濯兼脱水槽１９を駆動する。排水弁２５は洗濯兼脱水槽１９内の洗濯水を排水し、給水弁２６は洗濯兼脱水槽１９内に給水するものである。
【０００４】
洗濯兼脱水槽１９には脱水時の振動を低減させるための流体バランサー２７を配設している。カバー体２８は、外槽１７の上部に設けられた散水用の吐出部を形成するもので、制御装置２９は、モータ２２、排水弁２５、給水弁２６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１９に洗濯物と洗剤を投入した後、給水弁２６を作動して洗濯兼脱水槽１９内に設定水位まで給水を行い、その後、モータ２２により洗濯兼脱水槽１９を駆動して、洗濯兼脱水槽１９を回転数を上昇させる。回転数が上昇することにより洗濯兼脱水槽１９内の洗濯水を攪拌する力が増大し、洗濯兼脱水槽１９内の水面は、中央部が下降し、洗濯兼脱水槽１９と外槽１７との間が上昇し、ついには洗濯兼脱水槽１９の上端部の高さを越えて、洗濯兼脱水槽１９内部へと散水される。洗濯兼脱水槽１９の回転数は、あらかじめ洗濯兼脱水槽１９内に洗濯水が散水される回転数に設定されている。
【０００６】
このように洗濯水が洗濯兼脱水槽１９の上部から散水されて、洗濯物への洗濯水の供給をまんべんなく行うことにより、洗い、すすぎ行程を実施するように構成している。
【０００７】
【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、泡切れの悪い洗剤を用いた場合、すすぎ行程の最後まで洗濯水を上部から散水しつづけると、すすぎ終了時に水面に泡が残ってしまうことがあった。
【０００８】
本発明は上記課題を解決するもので、すすぎ性能を確保するとともに、泡切れの悪い洗剤を用いた場合でも泡残りを防止することを目的としている。
【０００９】

【課題を解決するための手段】
本発明は上記第１の目的を達成するために、外槽内に回転自在に配設した洗濯兼脱水槽を駆動手段により駆動し、洗濯兼脱水槽の回転により洗濯兼脱水槽内に、その上方部より散水される構成とし、制御手段により駆動手段、給水手段、排水手段などの動作を制御するとともに、この制御手段は、すすぎ行程において、洗濯兼脱水槽の回転数を上方部より散水される回転数とする第１の行程と、水の入れ替えを伴う注水すすぎよりなる第２の行程と、洗濯兼脱水槽の回転数を上方部より散水されない回転数とする第３の行程を、この順番で順次実行するよう構成したものである。
【００１０】
これにより、洗濯水を上部から散水させ、洗濯物に含まれる濃い洗剤成分を効率的に希釈した後、注水すすぎにより水を入れ替え、洗濯水を上部から散水させない回転数でさらに洗剤成分を余分な泡を立てることなく希釈することが可能となり、泡切れの悪い洗剤を使用した場合でも、すすぎ性能を確保し、かつすすぎ終了時に水面に泡が残るのを防止することができる。
【００１１】

【発明の実施の形態】
本発明の請求項１に記載の発明は、外槽内に回転自在に配設した洗濯兼脱水槽と、前記洗濯兼脱水槽を駆動する駆動手段と、前記洗濯兼脱水槽内に給水する給水手段と、前記洗濯兼脱水槽内の水を排水する排水手段と、前記駆動手段、給水手段、排水手段などの動作を制御する制御手段とを備え、前記洗濯兼脱水槽の回転により洗濯兼脱水槽内に、その上方部より散水される構成とし、前記制御手段は、すすぎ行程において、前記洗濯兼脱水槽の回転数を上方部より散水される回転数とする第１の行程と、水の入れ替えを伴う注水すすぎよりなる第２の行程と、前記洗濯兼脱水槽の回転数を上方部より散水されない回転数とする第３の行程を、この順番で順次実行するよう構成したものであり、洗濯水を上部から散水させ、洗濯物に含まれる濃い洗剤成分を効率的に希釈した後、注水すすぎにより水を入れ替え、洗濯水を上部から散水させない回転数でさらに洗剤成分を余分な泡を立てることなく希釈することが可能となり、泡切れの悪い洗剤を使用した場合でも、すすぎ性能を確保し、かつすすぎ終了時に水面に泡が残るのを防止することができる。
【００１２】
請求項２に記載の発明は、請求項１に記載の発明において、駆動手段により駆動され洗濯兼脱水槽底部に配設したパルセーターをさらに備え、制御手段は、第２の行程の前に、前記パルセーターを駆動するよう構成したものであり、さらに、洗い行程中にゼオライトが堆積した上側の洗濯物を、パルセーターを攪拌することにより、水中に沈め、ゼオライトを水中に分散させ、その後の注水すすぎで水を入れ替えることにより、ゼオライトを排出することができるので、洗濯物にゼオライトが残留するのを防止することができる。
【００１３】
請求項３に記載の発明は、請求項１または２に記載の発明において、制御手段は、第２の行程の実行時間を、第１の行程の設定水位までの給水時間に基づき決定するよう構成したものであり、さらに、設定水位までの給水時間により給水流量を判定することができ、給水流量が少ない場合のすすぎ不足を防止し、給水流量が多い場合のすすぎ過ぎによる水、電気、時間の浪費を防止することができる。
【００１４】
【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。
【００１５】
（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を回転駆動する。洗濯兼脱水槽２には、脱水時の振動を低減させるための流体バランサー８を配設している。カバー体９は、外槽１の上部に設けられた散水用の吐出部を形成するもので、給水弁（給水手段）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（排水手段）１２は外槽１内の洗濯水を排水するものである。
【００１６】
制御装置（制御手段）１３は、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とともに、すすぎ行程において、洗濯兼脱水槽２の回転数を、外槽１と洗濯兼脱水槽２との間の洗濯水を洗濯兼脱水槽２内へ散水される回転数とする第１の行程と、給水弁１０と排水弁１２を制御し、水の入れ替えを伴う注水すすぎよりなる第２の行程と、洗濯兼脱水槽２の回転数を、外槽１と洗濯兼脱水槽２との間の洗濯水を洗濯兼脱水槽２内へ散水されない回転数とする第３の行程を、この順番で順次実行するようにしている。
【００１７】
上記構成において動作を説明すると、洗濯兼脱水槽２に洗濯物と洗剤を投入した後、給水弁１０を作動して洗濯兼脱水槽２内に給水を行い、設定水位まで給水すると、給水弁１０の作動を停止する。その後、モータ５により洗濯兼脱水槽２を駆動して、洗濯兼脱水槽２の回転数を上昇させる。回転数が上昇することにより洗濯兼脱水槽２の洗濯水を攪拌する力が増大し、洗濯兼脱水槽２内の水面は、中央部が下降し、洗濯兼脱水槽２と外槽１との間が上昇し、洗濯兼脱水槽２の上端部の高さを超えて、洗濯兼脱水槽２内部へと散水される。
【００１８】
このように洗濯水が洗濯兼脱水槽２の上部から散水されて、洗濯物への洗濯水の供給をまんべんなく行うことにより、洗濯物の中を通過循環する行程が洗濯水散水行程の動作である。この行程によって、洗濯物への洗濯水の供給がまんべんなく行えるとともに、散水された洗濯水が洗濯兼脱水槽２の回転による遠心力によって洗濯物の中を繰り返し通過循環し、この洗濯水の繰り返し通過によって洗濯物に付着する汚れが除去される。また、この洗濯水散水行程では、洗濯水の散水、通過時に洗濯物が直接攪拌されないため、洗濯物を傷めることない。
【００１９】
つぎに、すすぎ行程を図２を参照にしながら動作を説明すると、洗い行程終了後、排水弁１２を作動して、外槽１内の洗濯水を排水する。つぎに、洗濯兼脱水槽２を約８００ｒ／ｍｉｎの所定回転数で回転駆動させて洗濯物を脱水し、余分な洗剤液を除去し、排水弁１２の作動を停止する。つぎに、給水弁１０を作動させ、設定水位まで給水し、給水弁１０の作動を停止する。
【００２０】
その後、図２に示すように、洗濯兼脱水槽２を回転数Ｒ１で回転駆動させ、第１の行程を実行する。回転数Ｒ１は、外槽１と洗濯兼脱水槽２との間の洗濯水を洗濯兼脱水槽２内へ散水される回転数に設定されている。この行程によって、洗濯物へ洗濯水がまんべんなく供給され、散水された洗濯水が洗濯兼脱水槽２の回転による遠心力によって、洗濯物の中を繰り返し通過循環し、この洗濯水の繰り返し通過によって、洗濯物に含まれる濃い洗剤成分が効率的に希釈される。
【００２１】
つぎに、洗濯兼脱水槽２を回転数Ｒ２で低速で回転駆動させ、給水弁１０と排水弁１２を作動させ、水の入れ替えを行い、第２の行程（注水すすぎ行程）を実行する。回転数Ｒ２は、１０〜３０ｒ／ｍｉｎ程度の、洗濯兼脱水槽２内の水面が変動しない低速回転数に設定されている。この行程によって、第１の行程で洗濯物から出てきた洗剤成分を排水し、清浄な水と入れ替えることができる。
【００２２】
その後、給水弁１０と排水弁１２の作動を停止し、洗濯兼脱水槽２を回転数Ｒ３で回転駆動させ、第３の行程を実行する。回転数Ｒ３は、外槽１と洗濯兼脱水槽２との間の洗濯水を洗濯兼脱水槽２内へ散水させない回転数に設定されている。この行程によって、第２の行程で入れ替えた清浄な水で、洗濯物に含まれる洗剤成分を、さらに希釈することができ、かつ上部から散水されないので、余分な泡を立てることもない。
【００２３】
その後、排水弁１２を作動して、外槽１内の洗濯水を排水し、洗濯兼脱水槽２を約８００ｒ／ｍｉｎの所定回転数で回転駆動させ、洗濯物を脱水する。
【００２４】
このように、すすぎ行程において、第１の行程で洗濯水を上部から散水させて洗濯物に含まれる濃い洗剤成分を希釈した後、第２の行程で水を入れ替え、第３の行程で洗濯水を上部から散水させない回転数でさらに洗剤成分を希釈することで、泡切れの悪い洗剤を使用した場合でも、すすぎ性能を確保しつつ、泡残りの発生を防止することができる。
【００２５】
（実施例２）
図３に示すように、洗濯兼脱水槽２の底部にパルセーター１４を設け、制御装置（制御手段）１５は、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とともに、すすぎ行程において、図４に示すように、水の入れ替えを伴う注水すすぎ行程の前に、パルセーターを駆動する行程を有している。他の構成は上記実施例１と同じである。
【００２６】
上記構成において図４を参照しながら動作を説明すると、洗い行程終了後、排水弁１２を作動して外槽１内の洗濯水を排水する。つぎに、洗濯兼脱水槽２を約８００ｒ／ｍｉｎの所定回転数で回転駆動させて洗濯物を脱水し、余分な洗剤液を除去し、排水弁１２の作動を停止する。つぎに、給水弁１０を作動させ、設定水位まで給水し、給水弁１０の作動を停止する。
【００２７】
その後、図４に示すように、洗濯兼脱水槽２を回転数Ｒ１’で回転駆動させ、洗濯水散水行程を実行する。回転数Ｒ１’は、外槽１と洗濯兼脱水槽２との間の洗濯水を洗濯兼脱水槽２内へ散水させる回転数に設定されている。この行程によって、洗濯物へ洗濯水がまんべんなく供給され、散水された洗濯水が洗濯兼脱水槽２の回転による遠心力によって、洗濯物の中を繰り返し通過循環し、この洗濯水の繰り返し通過によって、洗濯物に含まれる濃い洗剤成分が効率的に希釈される。
【００２８】
つぎに、パルセーター１４を回転駆動させ（例えば、右回転１秒オン−０．６秒オフ、左回転１秒オン−０．６秒オフ）、パルセーター駆動行程を実行する。この行程によって、洗い行程中にゼオライトが堆積した上側の洗濯物を、パルセーター駆動により水中に沈め、ゼオライトを水中に分散することができる。
【００２９】
つぎに、洗濯兼脱水槽２を回転数Ｒ２’の低速で回転駆動させ、給水弁１０と排水弁１２を作動させ、水の入れ替えを行い、注水すすぎ行程を実行する。回転数Ｒ２’は、１０〜３０ｒ／ｍｉｎ程度の洗濯兼脱水槽２内の水面が変動しない低速回転数に設定されている。この行程により、パルセーター駆動行程で水中に分散させたゼオライトを排出し、清浄な水と入れ替えることができる。
【００３０】
その後、給水弁１０と排水弁１２の作動を停止し、洗濯兼脱水槽２を回転数Ｒ１’で回転駆動させ、再び洗濯水散水行程を実行する。この行程により、洗濯物に残留している洗剤成分を注水すすぎ行程で入れ替えた清浄な水でさらに希釈することができる。
【００３１】
その後、排水弁１２を作動して、外槽１内の洗濯水を排水し、洗濯兼脱水槽２を約８００ｒ／ｍｉｎの所定回転数で回転駆動させ、洗濯物を脱水する。
【００３２】
このように、すすぎ行程において、洗濯水散水行程で洗濯水を上部から散水させ洗濯物に含まれる濃い洗剤成分を希釈した後、パルセーター駆動行程で洗い行程中にゼオライトが堆積した上側の洗濯物を水中に沈め、ゼオライトを水中に分散させることができる。そして、注水すすぎ行程で水を入れ替えることにより、水中に分散させたゼオライトを排出することができ、洗濯物にゼオライトが残ることを防止することができる。
【００３３】
（実施例３）
図５に示すように、制御装置（制御手段）１６は、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とともに、すすぎ行程において、水の入れ替えを伴う注水すすぎ行程の実行時間を、この注水すすぎ行程前の設定水位までの給水時間に基づき決定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。
【００３４】
上記構成において図６を参照しながら動作を説明する。ステップ２０にて洗い行程を実行して終了すると、ステップ２１に移行し、排水弁１２を作動して外槽１内の洗濯水を排水し、洗濯兼脱水槽２を約８００ｒ／ｍｉｎの所定回転数で回転駆動させて洗濯物を脱水し、余分な洗剤液を除去し、排水弁１２の作動を停止する。
【００３５】
つぎに、ステップ２２にて給水弁１０を作動させ、設定水位まで給水した後、給水弁１０の作動を停止する。ステップ２３にてこのときの給水時間を判定し、ステップ２４にて、後に行われる注水すすぎ行程の実行時間を（表１）に示すように決定する。
【００３６】
【表１】

【００３７】
なお、（表１）において、注水すすぎ実行時間Ｔ４はＴ２の約５倍の時間であり、Ｔ１とＴ３は、それぞれＴ２とＴ４の約１／２の時間である。
【００３８】
その後、ステップ２５にて洗濯兼脱水槽２を回転駆動させ、外槽１と洗濯兼脱水槽２との間の洗濯水を洗濯兼脱水槽２内へ散水させ、洗濯物に含まれる濃い洗剤成分を希釈する。つぎに、ステップ２６にて洗濯兼脱水槽２を１０〜３０ｒ／ｍｉｎ程度の洗濯兼脱水槽２内の水面が変動しない低速回転数で回転駆動させるとともに、給水弁１０と排水弁１２を作動させて水の入れ替えを行い、注水すすぎ行程を実行する。この注水すすぎ行程の実行時間は、ステップ２４にて決定された時間である。
【００３９】
その後、給水弁１０と排水弁１２の作動を停止し、ステップ２７にて再度洗濯兼脱水槽２を回転駆動させ、外槽１と洗濯兼脱水槽２との間の洗濯水を洗濯兼脱水槽２内へ散水させ、さらに、洗濯物に含まれる洗剤成分を希釈する。その後、ステップ２８にて排水弁１２を作動して外槽１内の洗濯水を排水し、洗濯兼脱水槽２を約８００ｒ／ｍｉｎの所定回転数で回転駆動させ、洗濯物を脱水し、終了する。
【００４０】
このように、給水時間により給水流量を判定することが可能となり、給水時間が長い場合（給水流量が少ない場合）は注水すすぎ時間を長くすることにより、すすぎ不足を防止し、給水時間が短い場合（給水流量が多い場合）は注水すすぎ時間を短くすることによりすすぎ過ぎによる水、電気、時間の浪費を防止することができる。
【００４１】
なお、本実施例では、すすぎ行程での給水時間により、注水すすぎ実行時間を決定しているが、洗い行程での給水時間に基づいて、注水すすぎ実行時間を決定してもよい。
【００４２】
【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、外槽内に回転自在に配設した洗濯兼脱水槽と、前記洗濯兼脱水槽を駆動する駆動手段と、前記洗濯兼脱水槽内に給水する給水手段と、前記洗濯兼脱水槽内の水を排水する排水手段と、前記駆動手段、給水手段、排水手段などの動作を制御する制御手段とを備え、前記洗濯兼脱水槽の回転により洗濯兼脱水槽内に、その上方部より散水される構成とし、前記制御手段は、すすぎ行程において、前記洗濯兼脱水槽の回転数を上方部より散水される回転数とする第１の行程と、水の入れ替えを伴う注水すすぎよりなる第２の行程と、前記洗濯兼脱水槽の回転数を上方部より散水されない回転数とする第３の行程を、この順番で順次実行するよう構成したから、洗濯水を上部から散水させ、洗濯物に含まれる濃い洗剤成分を効率的に希釈した後、注水すすぎにより水を入れ替え、洗濯水を上部から散水させない回転数でさらに洗剤成分を余分な泡を立てることなく希釈することが可能となり、泡切れの悪い洗剤を使用した場合でも、すすぎ性能を確保し、かつすすぎ終了時に水面に泡が残るのを防止することができる。
【００４３】
また、請求項２に記載の発明によれば、請求項１に記載の発明において、駆動手段により駆動され洗濯兼脱水槽底部に配設したパルセーターをさらに備え、制御手段は、第２の行程の前に、前記パルセーターを駆動するよう構成したから、さらに、洗い行程中にゼオライトが堆積した上側の洗濯物を、パルセーターを攪拌することにより、水中に沈め、ゼオライトを水中に分散させ、その後の注水すすぎで水を入れ替えることにより、ゼオライトを排出することができるので、洗濯物にゼオライトが残留するのを防止することができる。
【００４４】
また、請求項３に記載の発明によれば、請求項１または２に記載の発明において、制御手段は、第２の行程の実行時間を、第１の行程の設定水位までの給水時間に基づき決定するよう構成したから、さらに、設定水位までの給水時間により給水流量を判定することができ、給水流量が少ない場合のすすぎ不足を防止し、給水流量が多い場合のすすぎ過ぎによる水、電気、時間の浪費を防止することができる。
【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】同洗濯機の要部動作タイムチャート
【図３】本発明の第２の実施例の洗濯機の縦断面図
【図４】同洗濯機の要部動作タイムチャート
【図５】本発明の第３の実施例の洗濯機の縦断面図
【図６】同洗濯機の要部動作フローチャート
【図７】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）
１０給水弁（給水手段）
１２排水弁（排水手段）
１３制御装置（制御手段）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing machine that performs washing and rinsing by circulating washing water.
[0002]
[Prior art]
Conventionally, this type of washing machine is configured as shown in FIG. Hereinafter, the configuration will be described.
[0003]
As shown in FIG. 7, the outer tub 17 includes a washing and dewatering tub 19 in which a stirring blade 18 is rotatably disposed at the bottom, and is hung from a washing machine outer frame 21 by a suspension bar 20. The motor 22 drives the stirring blade 18 or the washing and dewatering tub 19 via the V belt 23 and the speed reduction mechanism / clutch 24. The drain valve 25 drains the washing water in the washing / dehydrating tank 19, and the water supply valve 26 supplies water to the washing / dehydrating tank 19.
[0004]
The washing and dewatering tub 19 is provided with a fluid balancer 27 for reducing vibration during dewatering. The cover body 28 forms a spout for watering provided at the upper part of the outer tub 17, and the control device 29 controls the motor 22, the drain valve 25, the water supply valve 26, etc. to perform washing, rinsing, Each process of dehydration is controlled sequentially.
[0005]
The operation in the above configuration will be described. After the laundry and the dewatering tub 19 are filled with laundry and detergent, the water supply valve 26 is operated to supply water to the set water level in the washing and dewatering tub 19, and then the washing is performed by the motor 22. The cum dewatering tub 19 is driven to increase the rotational speed of the washing and dewatering tub 19. As the rotational speed increases, the force for stirring the washing water in the washing / dehydrating tub 19 increases, and the water level in the washing / dehydrating tub 19 is lowered at the center so that the washing / dehydrating tub 19 and the outer tub 17 Then, the water is sprayed into the washing / dehydrating tub 19 over the height of the upper end of the washing / dehydrating tub 19. The rotational speed of the washing / dehydrating tub 19 is set in advance to the rotational speed at which the washing water is sprinkled in the washing / dehydrating tub 19.
[0006]
As described above, the washing water is sprinkled from the upper part of the washing and dewatering tub 19 and the washing water is supplied to the laundry evenly, so that the washing and rinsing process is performed.
[0007]
[Problems to be solved by the invention]
However, in the case of the washing machine having this configuration, when a detergent with poor foaming is used, if the washing water is continuously sprinkled from the upper part to the end of the rinsing process, bubbles may remain on the water surface at the end of rinsing .
[0008]
The present invention is intended to solve the above problems, while securing the rinsing performance, and the purpose of preventing the bubbles remaining even when a poor detergent bubble breakage.
[0009]

[Means for Solving the Problems]
In order to achieve the first object, the present invention drives a washing and dewatering tub rotatably disposed in the outer tub by a driving means, and rotates the washing and dewatering tub into the washing and dewatering tub. The control means controls the operation of the drive means, the water supply means, the drainage means, etc., and the control means sprays the rotational speed of the washing and dewatering tub from the upper part in the rinsing process. A first stroke with a rotating speed, a second stroke consisting of water rinsing with replacement of water, and a third stroke with the rotating speed of the washing and dewatering tub not sprinkled from above. It is configured to execute sequentially in order.
[0010]
As a result, after washing water is sprinkled from the top and the thick detergent component contained in the laundry is efficiently diluted, the water is replaced by rinsing with water, and extra detergent components are added at a rotational speed that does not sprinkle the washing water from the top. It is possible to dilute without foaming, and even when a detergent with poor foaming is used, it is possible to ensure rinsing performance and prevent foam from remaining on the water surface at the end of rinsing .
[0011]

DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, there is provided a washing / dehydrating tub rotatably disposed in an outer tub, a driving means for driving the washing / dehydrating tub, and a water supply for supplying water into the washing / dehydrating tub. Means, draining means for draining water in the washing / dehydrating tub, and control means for controlling operations of the driving means, water supply means, draining means, etc., and washing / dehydrating by rotation of the washing / dehydrating tub In the tub, water is sprayed from the upper part, and the control means is configured to perform a first process in which the rotational speed of the washing / dehydrating tub is sprinkled from the upper part in the rinsing process, A second step consisting of water rinsing with replacement, and a third step in which the number of rotations of the washing and dewatering tub is not sprinkled from the upper part are configured to be executed sequentially in this order, Wash water is sprinkled from the top and included in the laundry After efficiently diluting the detergent components, the water is replaced by rinsing with water, and the detergent components can be further diluted without excessive foaming at a rotation speed that does not sprinkle the washing water from the top. Even when a detergent is used, it is possible to ensure rinsing performance and prevent bubbles from remaining on the water surface at the end of rinsing.
[0012]
The invention of claim 2 is the invention according to claim 1, further comprising, control means pulsator over which is disposed to be driven washing and dewatering tank bottom by drive means, prior to the second stage The pulsator is configured to be driven, and the upper laundry in which the zeolite is deposited during the washing process is submerged in the water by stirring the pulsator, and then the zeolite is dispersed in the water. Since the zeolite can be discharged by replacing the water by rinsing with water, it is possible to prevent the zeolite from remaining in the laundry.
[0013]
Configuration invention according to claim 3, in the invention described in

claim

1 or 2, the control means, the execution time of the second step, to determine on the basis of the water supply time to the set water level of the first stage Furthermore, the water supply flow rate can be determined based on the water supply time to the set water level, preventing insufficient rinsing when the water supply flow rate is low, and water, electricity, and time due to rinsing when the water supply flow rate is high. Waste can be prevented.
[0014]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0015]
(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 via the V belt 6 and the speed reduction mechanism 7. The washing and dewatering tub 2 is provided with a fluid balancer 8 for reducing vibration during dehydration. The cover body 9 forms a sprinkling discharge portion provided in the upper part of the outer tub 1, and a water supply valve (water supply means) 10 supplies water into the washing and dewatering tub 2. The detection means 11 detects the water level in the outer tub 1, and the drain valve (drainage means) 12 drains the washing water in the outer tub 1.
[0016]
The control device (control means) 13 controls the operation of the motor 5, the water supply valve 10, the drain valve 12, and the like, and sequentially controls a series of processes such as washing, rinsing, and dewatering. A first stroke in which the washing water between the outer tub 1 and the washing / dehydrating tub 2 is sprinkled into the washing / dehydrating tub 2, and the water supply valve 10 and the drain valve 12 are The second step of controlling and irrigating water with replacement of water, the rotation speed of the washing and dehydrating tub 2, and the washing water between the outer tub 1 and the washing and dehydrating tub 2 in the washing and dehydrating tub 2 The third stroke with the rotational speed at which no water is sprayed is sequentially executed in this order.
[0017]
The operation in the above configuration will be described. After the laundry and the dehydration tank 2 are loaded with laundry and detergent, the water supply valve 10 is operated to supply water into the laundry / dehydration tank 2, and when water is supplied to the set water level, the water supply valve 10 Stop the operation. Thereafter, the washing / dehydrating tub 2 is driven by the motor 5 to increase the rotational speed of the washing / dehydrating tub 2. As the rotational speed increases, the force for stirring the washing water in the washing / dehydrating tub 2 increases, and the surface of the water in the washing / dehydrating tub 2 is lowered at the center so that the washing / dehydrating tub 2 and the outer tub 1 The interval rises and the water is sprinkled into the washing / dehydrating tub 2 beyond the height of the upper end of the washing / dehydrating tub 2.
[0018]
In this way, washing water is sprinkled from the upper part of the washing and dewatering tub 2 and the washing water is evenly supplied to the laundry, whereby the process of circulating through the laundry is the operation of the washing water sprinkling process. . Through this process, the washing water can be supplied evenly to the laundry, and the sprinkled washing water is repeatedly passed and circulated through the laundry by the centrifugal force generated by the rotation of the washing / dehydrating tank 2, and this washing water is repeatedly passed. As a result, dirt adhered to the laundry is removed. Further, in the washing water sprinkling process, the laundry is not directly agitated when the washing water is sprinkled and passed, so that the laundry is not damaged.
[0019]
Next, the operation of the rinsing process will be described with reference to FIG. 2. After the washing process is completed, the drain valve 12 is operated to drain the washing water in the outer tub 1. Next, the washing and dewatering tub 2 is rotationally driven at a predetermined rotational speed of about 800 r / min to dehydrate the laundry, remove excess detergent solution, and stop the operation of the drain valve 12. Next, the water supply valve 10 is operated, water is supplied to the set water level, and the operation of the water supply valve 10 is stopped.
[0020]
Thereafter, as shown in FIG. 2, the washing and dewatering tub 2 is rotationally driven at the rotational speed R1, and the first step is executed. The rotation speed R <b> 1 is set to a rotation speed at which washing water between the outer tub 1 and the washing / dehydrating tub 2 is sprinkled into the washing / dehydrating tub 2. Through this process, washing water is supplied evenly to the laundry, and the sprinkled washing water is repeatedly passed and circulated through the laundry by the centrifugal force generated by the rotation of the washing and dewatering tub 2, and by the repeated passage of this washing water, The thick detergent component contained in the laundry is efficiently diluted.
[0021]
Next, the washing and dewatering tub 2 is driven to rotate at a low speed of the rotation speed R2, the water supply valve 10 and the drain valve 12 are operated, the water is replaced, and the second process (water injection rinsing process) is executed. The rotation speed R2 is set to a low speed rotation speed of about 10 to 30 r / min so that the water surface in the washing and dewatering tub 2 does not fluctuate. By this process, the detergent component that has come out of the laundry in the first process can be drained and replaced with clean water.
[0022]
Thereafter, the operation of the water supply valve 10 and the drain valve 12 is stopped, the washing and dewatering tub 2 is rotated at a rotational speed R3, and the third stroke is executed. The rotation speed R3 is set to a rotation speed at which the washing water between the outer tub 1 and the washing / dehydrating tub 2 is not sprinkled into the washing / dehydrating tub 2. By this process, the detergent component contained in the laundry can be further diluted with the clean water replaced in the second process, and since it is not sprinkled from above, no extra foam is formed.
[0023]
Thereafter, the drain valve 12 is actuated to drain the washing water in the outer tub 1, and the washing and dewatering tub 2 is rotationally driven at a predetermined rotational speed of about 800 r / min to dehydrate the laundry.
[0024]
In this manner, in the rinsing process, after washing water is sprinkled from the top in the first process to dilute the thick detergent component contained in the laundry, the water is replaced in the second process, and the washing water is used in the third process. By further diluting the detergent component at a rotational speed that does not sprinkle water from the top, it is possible to prevent the occurrence of foam residue while ensuring the rinsing performance even when a detergent with poor foam is used.
[0025]
(Example 2)
As shown in FIG. 3, a pulsator 14 is provided at the bottom of the washing and dewatering tub 2, and a control device (control means) 15 controls the operation of the motor 5, the water supply valve 10, the drain valve 12, and the like to perform washing and rinsing. A series of processes such as dehydration are sequentially controlled, and the rinsing process includes a process of driving the pulsator before the water injection rinsing process with water replacement, as shown in FIG. Other configurations are the same as those of the first embodiment.
[0026]
The operation of the above configuration will be described with reference to FIG. 4. After the washing process is completed, the drain valve 12 is operated to drain the washing water in the outer tub 1. Next, the washing and dewatering tub 2 is rotationally driven at a predetermined rotational speed of about 800 r / min to dehydrate the laundry, remove excess detergent solution, and stop the operation of the drain valve 12. Next, the water supply valve 10 is operated, water is supplied to the set water level, and the operation of the water supply valve 10 is stopped.
[0027]
Thereafter, as shown in FIG. 4, the washing and dewatering tub 2 is rotationally driven at the rotational speed R1 ′, and the washing water sprinkling process is executed. The rotational speed R1 ′ is set to a rotational speed at which the washing water between the outer tub 1 and the washing / dehydrating tub 2 is sprinkled into the washing / dehydrating tub 2. Through this process, washing water is supplied evenly to the laundry, and the sprinkled washing water is repeatedly passed and circulated through the laundry by the centrifugal force generated by the rotation of the washing and dewatering tub 2, and by the repeated passage of this washing water, The thick detergent component contained in the laundry is efficiently diluted.
[0028]
Next, the pulsator 14 is rotated (for example, right rotation 1 second on-0.6 second off, left rotation 1 second on-0.6 second off), and a pulsator driving process is executed. By this process, the upper laundry in which the zeolite is deposited during the washing process can be submerged in the water by driving the pulsator, and the zeolite can be dispersed in the water.
[0029]
Next, the washing and dewatering tub 2 is driven to rotate at a low speed of the rotation speed R2 ′, the water supply valve 10 and the drain valve 12 are operated, the water is replaced, and the water injection rinsing process is executed. The rotation speed R2 ′ is set to a low-speed rotation speed at which the water level in the washing and dewatering tub 2 does not vary from about 10 to 30 r / min. By this process, the zeolite dispersed in water in the pulsator driving process can be discharged and replaced with clean water.
[0030]
Thereafter, the operation of the water supply valve 10 and the drain valve 12 is stopped, the washing and dewatering tub 2 is rotationally driven at the rotational speed R1 ′, and the washing water sprinkling process is executed again. By this process, it is possible to further dilute the detergent components remaining in the laundry with clean water that has been replaced by the water injection process.
[0031]
Thereafter, the drain valve 12 is actuated to drain the washing water in the outer tub 1, and the washing and dewatering tub 2 is rotationally driven at a predetermined rotational speed of about 800 r / min to dehydrate the laundry.
[0032]
In this way, in the rinsing process, after washing water is sprinkled from above in the washing water sprinkling process to dilute the thick detergent component contained in the laundry, the upper laundry in which zeolite is deposited during the washing process in the pulsator driving process Can be submerged in water to disperse the zeolite in water. Then, by replacing the water in the water injection rinsing process, the zeolite dispersed in the water can be discharged, and the zeolite can be prevented from remaining in the laundry.
[0033]
(Example 3)
As shown in FIG. 5, the control device (control means) 16 controls the operation of the motor 5, the water supply valve 10, the drain valve 12, etc., and sequentially controls a series of steps such as washing, rinsing, and dewatering, and also rinses. In the process, the execution time of the water rinsing process with water replacement is determined based on the water supply time up to the set water level before the water rinsing process. Other configurations are the same as those of the first embodiment.
[0034]
The operation of the above configuration will be described with reference to FIG. When the washing process is completed in step 20, the process proceeds to step 21 where the drain valve 12 is operated to drain the washing water in the outer tub 1, and the washing and dewatering tub 2 is rotated at a predetermined speed of about 800 r / min. The laundry is dehydrated by rotating the number, the excess detergent solution is removed, and the operation of the drain valve 12 is stopped.
[0035]
Next, after the water supply valve 10 is operated in step 22 to supply water to the set water level, the operation of the water supply valve 10 is stopped. In step 23, the water supply time at this time is determined, and in step 24, the execution time of the water injection rinsing process to be performed later is determined as shown in (Table 1).
[0036]
[Table 1]

[0037]
In Table 1, the water rinsing execution time T4 is about five times as long as T2, and T1 and T3 are about ½ times of T2 and T4, respectively.
[0038]
Thereafter, in step 25, the washing / dehydrating tub 2 is driven to rotate, and the washing water between the outer tub 1 and the washing / dehydrating tub 2 is sprinkled into the washing / dehydrating tub 2, and a thick detergent component contained in the laundry Dilute. Next, in step 26, the washing and dewatering tub 2 is driven to rotate at a low speed that does not change the water level in the washing and dewatering tub 2 at about 10 to 30 r / min, and the water supply valve 10 and the drain valve 12 are operated. Replace the water and perform the water rinsing process. The execution time of this water injection rinsing process is the time determined in step 24.
[0039]
Thereafter, the operation of the water supply valve 10 and the drain valve 12 is stopped, and the washing and dewatering tub 2 is rotationally driven again in step 27, and the washing water between the outer tub 1 and the washing and dewatering tub 2 is washed and dewatered. 2 is sprinkled into water, and further the detergent components contained in the laundry are diluted. Thereafter, in step 28, the drain valve 12 is actuated to drain the washing water in the outer tub 1, and the washing and dewatering tub 2 is driven to rotate at a predetermined rotational speed of about 800 r / min, the laundry is dehydrated, and the process ends. To do.
[0040]
In this way, it becomes possible to determine the water supply flow rate based on the water supply time, and when the water supply time is long (when the water supply flow rate is low), by increasing the water rinsing time, the lack of rinsing is prevented and the water supply time is short In the case where the feed water flow rate is high, waste of water, electricity, and time due to rinsing can be prevented by shortening the water rinsing time.
[0041]
In this embodiment, the water rinsing execution time is determined based on the water supply time in the rinsing process. However, the water rinsing execution time may be determined based on the water supply time in the washing process.
[0042]
【The invention's effect】
As described above, according to the first aspect of the present invention, the washing / dehydrating tub rotatably disposed in the outer tub, the driving means for driving the washing / dehydrating tub, and the washing / dehydrating tub A water supply means for supplying water into the tub, a drain means for draining the water in the washing / dehydrating tub, and a control means for controlling operations of the driving means, water supply means, draining means, etc. In the washing / dehydrating tub, the control means is configured to spray water from the upper portion thereof, and in the rinsing process, the control means sets the rotation speed of the washing / dehydrating tub to the rotation speed sprayed from the upper portion. And a second step consisting of water rinsing with replacement of water and a third step in which the number of rotations of the washing and dewatering tub is not sprinkled from the upper part are sequentially executed in this order. Since it is configured, the washing water is sprinkled from the top and washed. It is possible to dilute the detergent component without excessive foaming at a rotation speed that does not cause the washing water to sprinkle after replacing the water by rinsing with water, after efficiently diluting the dark detergent component contained in Even when a detergent with poor cutting properties is used, it is possible to ensure rinsing performance and prevent bubbles from remaining on the water surface at the end of rinsing.
[0043]
Further, according to the invention of claim 2, in the invention described in claim 1, is driven by the driving means further comprises a pulsator over which is disposed in the washing and dewatering tank bottom, control means, the second Since the pulsator is configured to be driven before the process, the upper laundry on which the zeolite is deposited during the washing process is submerged in the water by stirring the pulsator to disperse the zeolite in the water. Since the zeolite can be discharged by replacing the water with the subsequent water injection rinse, it is possible to prevent the zeolite from remaining in the laundry.
[0044]
Further, according to the invention of claim 3, in the invention described in

claim

1 or 2, the control means, the execution time of the second stroke, based on the water supply time to the set water level of the first stage Since it is configured to be determined, the water supply flow rate can be determined based on the water supply time to the set water level, preventing insufficient rinsing when the water supply flow rate is low, and water, electricity, Time waste can be prevented.
[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 an operation time chart of main parts of the washing machine. FIG. 3 is a longitudinal section of a washing machine according to a second embodiment of the present invention. FIG. 4 is an operation time chart of the main part of the washing machine. FIG. 5 is a longitudinal sectional view of the washing machine of the third embodiment of the invention. FIG. 6 is an operation flowchart of the main part of the washing machine. Sectional view of the washing machine
1 Outer tub 2 Washing / dehydration tub 5 Motor (driving means)
10 Water supply valve (water supply means)
12 Drain valve (drainage means)
13 Control device (control means)

Claims

A washing and dewatering tub rotatably disposed in the outer tub, a driving means for driving the washing and dehydrating tub, a water supply means for supplying water into the washing and dehydrating tub, and water in the washing and dehydrating tub A structure comprising drainage means for draining, and control means for controlling the operation of the drive means, water supply means, drainage means, etc., and water is sprinkled from above the washing / dehydration tank by rotation of the washing / dehydration tank In the rinsing process, the control means includes a first process in which the number of rotations of the washing and dewatering tub is sprinkled from the upper part, and a second process of irrigation with water replacement. A washing machine configured to sequentially execute a third step in which the rotation speed of the washing and dewatering tub is set to a rotation speed at which water is not sprinkled from above.

Is driven by the driving means further comprises a pulsator over which is disposed in the washing and dewatering tank bottom, control means, before the second step, the washing machine according to claim 1, wherein configured to drive the pulsator.

Control means, the washing machine according to the execution time of the second stroke to claim 1 or 2 configured to determine, based on the water supply time to the set water level of the first stroke.