JP2004195100A

JP2004195100A - Drum type washing machine

Info

Publication number: JP2004195100A
Application number: JP2002370337A
Authority: JP
Inventors: Hiroko Minayoshi; 裕子皆吉; Eiji Matsuda; 栄治松田; Haruo Ida; 治夫井田
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2002-12-20
Filing date: 2002-12-20
Publication date: 2004-07-15
Also published as: CN1510195A

Abstract

<P>PROBLEM TO BE SOLVED: To reduce nonuniformity in rinsing and increase rinsing power without increasing the quantity of water to be used, and to shorten a rinsing time by circulating rinsing water in a rotary drum, causing the rinsing water to pass through laundry in a rinsing process concerning a drum type washing machine for washing laundry by sequentially controlling each process such as washing, rinsing and spin-drying after throwing the laundry into the rotary drum. <P>SOLUTION: The rotary drum having a rotary center axis in a nearly horizontal direction is arranged in a water receiving tub so as to be freely rotatable. The rotary drum is driven by a motor 5, and water is supplied to the water receiving tub by a water supply valve 11. A control means 22 controls the operation of the motor 5, and also controls each of the processes of washing, rinsing and dehydrating. The control means 22 rotates the rotary drum by the number of rotation to such a degree that the laundry is stuck to the inner wall of the rotary drum in the rinsing process, and the rinsing water circulating in the rotary drum is poured over the laundry in the rotary drum through the use of the centrifugal force of the rotary drum. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、回転ドラム内に洗濯物を投入し、洗濯、すすぎ、脱水などの各行程を逐次制御して洗濯するドラム式洗濯機に関するものである。
【０００２】
【従来の技術】
従来、この種のドラム式洗濯機は図５および図６に示すように構成していた（例えば、特許文献１参照）。以下、その構成について説明する。
【０００３】
図５および図６に示すように、回転ドラム１は、外周部に多数の通水孔２を全面に設け、水受け槽３内に回転自在に配設している。回転ドラム１の回転中心に略水平方向に回転軸（回転中心軸）４を設け、この回転軸４にモータ５を連結し、回転ドラム１を回転駆動する。回転ドラム１の内壁面に数個の突起板６を設けている。
【０００４】
水受け槽３は洗濯機本体７よりばね体８で揺動可能に吊り下げており、水受け槽３の下部に排水ホース９の一端を接続し、ホース９の他端を排水ポンプ１０に接続して水受け槽３内の洗濯水を排水するようにしている。給水弁１１は水受け槽３内に水を給水するものである。水位検知手段１２は水受け槽３内の水位を検知するものである。
【０００５】
制御装置１３は、マイクロコンピュータで構成した制御手段１４を有し、パワースイッチング手段１５を介してモータ５、排水ポンプ１０、給水弁１１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１６は、運転コース等を設定するもので、制御手段１４は入力設定手段１６からの情報を入力して、その情報を基に表示手段１７を表示して使用者に知らせる。記憶手段１８は、制御手段１５により制御するのに必要なデータを記憶している。なお、１９は商用電源、２０は電源スイッチである。
【０００６】
上記構成において動作を説明すると、回転ドラム１内に洗濯物と洗剤を投入し、電源、スタートボタン（図示せず）を押し、洗濯行程を開始すると、給水弁１１が動作して給水し、水位検知手段１２により所定の水位Ｎ１を検知するとモータ５を駆動する。また、所定の水位Ｎ２（Ｎ１と同等以上）を検知すると給水を停止する。
【０００７】
洗濯行程では、洗濯物に水が含まれるため補給水しながら、回転ドラム１はモータ５によって所定の回転数および所定の時間において、正転、停止、反転、停止駆動し、回転ドラム１内の洗濯物は突起板６に引っかかり、持ち上げられて水面上に落下する。この動作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。洗濯行程が終了すると、排水ポンプ１０を動作して水受け槽３内の洗濯水を排水する。
【０００８】
すすぎ行程では、まず、モータ５を所定の回転数および所定の時間において、連続回転駆動し、回転ドラム１内の洗濯物を回転ドラム１の内壁に貼り付けた状態で回転数を高速にし、その遠心力によって洗濯物内の水分を飛ばして脱水を行う。
【０００９】
ついで、洗濯行程と同様に、補給水しながら、回転ドラム１はモータ５によって所定の回転数および所定の時間において、正転、停止、反転、停止駆動し、回転ドラム１内の洗濯物は突起板６に引っかかり、持ち上げられて水面上に落下する。この動作によってすすぎ水を洗濯物に含めて、洗濯物内の洗剤液を希釈していく。すすぎ行程が終了すると、排水ポンプ１０を動作して水受け槽３内のすすぎ水を排水する。
【００１０】
【特許文献１】
特開平１０−２１６３９０号公報
【００１１】
【発明が解決しようとする課題】
このような従来の構成では、すすぎ行程にて、回転ドラム１の正転、停止、反転、停止駆動によって回転ドラム１内の洗濯物にすすぎ水を含ませながら機械力を与えて、すすぎ性能を確保している。
【００１２】
このため、給水量が少ないドラム式洗濯機では、洗濯物にすすぎ水が均一にかかるために時間を有し、すすぎむらが発生したり、すすぎ力が低下し、すすぎに時間が長くかかる要因の一つになっていた。加えて、すすぎ力を向上するためには、使用水量を増やす必要があった。
【００１３】
本発明は上記従来の課題を解決するもので、すすぎ行程で、回転ドラム内にすすぎ水を循環させて、洗濯物にすすぎ水を通過させることで、使用水量を増やすことなく、すすぎむらを低減するとともにすすぎ力を向上し、すすぎ時間を短縮することを目的としている。
【００１４】
【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、回転中心軸を略水平方向に有する回転ドラムを水受け槽内に回転自在に配設し、この回転ドラムをモータにより駆動し水受け槽内に給水手段により給水し、制御手段によりモータの動作を制御し洗濯、すすぎ、脱水の各行程を制御するよう構成し、制御手段は、すすぎ行程にて、洗濯物が前記回転ドラムの内壁に張り付く程度の回転数で回転ドラムを回転させ、その遠心力により回転ドラム内を循環させたすすぎ水を回転ドラム内の洗濯物にかけるように構成したものである。
【００１５】
これにより、すすぎ水を回転ドラム内の洗濯物に通過させるようにかけることができ、少ないすすぎ水でも回転ドラム内の洗濯物にすすぎ水をしみ込みやすくできて、また、洗剤成分を洗濯物から抜けやすくできて、洗濯物内の洗剤成分を希釈しやすくできるため、使用水量を増やすことなく、すすぎむらを低減できるとともにすすぎ力を向上することができ、すすぎ時間を短縮することができる。
【００１６】
【発明の実施の形態】
本発明の請求項１に記載の発明は、回転中心軸を略水平方向に有し水受け槽内に回転自在に配設した回転ドラムと、前記回転ドラムを駆動するモータと、前記水受け槽内に給水する給水手段と、前記モータの動作を制御し洗濯、すすぎ、脱水の各行程を制御する制御手段とを備え、前記制御手段は、すすぎ行程にて、洗濯物が前記回転ドラムの内壁に張り付く程度の回転数で前記回転ドラムを回転させ、その遠心力により回転ドラム内を循環させたすすぎ水を前記回転ドラム内の洗濯物にかけるように構成したものであり、すすぎ水を回転ドラム内の洗濯物に通過させるようにかけることができ、少ないすすぎ水でも回転ドラム内の洗濯物にすすぎ水をしみ込みやすくできて、また、洗剤成分を洗濯物から抜けやすくできて、洗濯物内の洗剤成分を希釈しやすくできるため、すすぎむらを低減できるとともにすすぎ力を向上することができ、すすぎ時間を短縮することができる。
【００１７】
請求項２に記載の発明は、回転中心軸を略斜め方向に有し水受け槽内に回転自在に配設した回転ドラムと、前記回転ドラムを駆動するモータと、前記水受け槽内に給水する給水手段と、前記モータの動作を制御し洗濯、すすぎ、脱水の各行程を制御する制御手段とを備え、前記制御手段は、すすぎ行程にて、洗濯物が前記回転ドラムの内壁に張り付く程度の回転数で前記回転ドラムを回転させ、その遠心力により回転ドラム内を循環させたすすぎ水を前記回転ドラム内の洗濯物に対し、前記回転ドラムの回転中心軸の高位置側からかけるように構成したものであり、回転中心軸を斜め方向にして低い位置に片寄った洗濯物に、逆の高い位置側から回転ドラム内を循環させたすすぎ水を回転ドラム内の洗濯物にかけることで、回転中心軸が水平方向のものよりすすぎ水が斜め方向に広い範囲でかかりやすくなる。これにより、回転中心軸が水平方向のものより、さらに、回転ドラム内の洗濯物にすすぎ水をしみ込みやすくできて、また、洗剤成分を洗濯物から抜けやすくできて、洗濯物内の洗剤成分を希釈しやすくできるため、すすぎむらを低減できるとともにすすぎ力を向上することができ、すすぎ時間を短縮することができる。
【００１８】
請求項３に記載の発明は、上記請求項１または２に記載の発明において、制御手段は、回転ドラム内にすすぎ水を供給しながら前記回転ドラムの回転数を制御するようにしたものであり、洗濯物が回転ドラムの内壁に張り付く程度の回転数で回転ドラムを回転させ、その遠心力にて回転ドラム内を循環させたすすぎ水を回転ドラム内の洗濯物にかけるときに、回転数を制御することで、回転数を低くすると、回転ドラム内に張り付いた洗濯物間にゆとりができてすすぎ水をしみ込みやすくできて、若干洗濯物がこすれあいながら回転してすすぎ水が洗濯物内の洗剤成分に作用しやすくでき、また、回転数を高くすると回転ドラム内に洗濯物が張り付き、すすぎ水が洗濯物を通過して洗剤成分を洗濯物から抜けやすくすることができ、さらに、洗濯物内の洗剤成分を希釈しやすくできるため、すすぎむらを低減できるとともにすすぎ力を向上することができ、すすぎ時間を短縮することができる。
【００１９】
請求項４に記載の発明は、上記請求項１〜３に記載の発明において、制御手段は、回転ドラム内の洗濯物にすすぎ水をかけた後、前記回転ドラムを正転、反転する行程を少なくとも一回行うようにしたものであり、回転ドラム内の洗濯物がすすぎ水を含んだ状態で洗濯物に機械力を作用することで、すすぎ水を洗濯物内の洗剤成分にまんべんなく接触しやすくできて、より多くの洗剤成分を希釈することができ、すすぎむらを低減できるとともにすすぎ力を向上することができる。
【００２０】
請求項５に記載の発明は、上記請求項１〜４に記載の発明において、制御手段は、脱水終了後の惰性回転途中からすすぎ行程の給水をするようにしたものであり、脱水終了後、回転ドラム内に洗濯物が張り付いたままの状態で給水を行い、続けてすすぎ水を循環させることで、バランスよく回転させることができる。また、脱水終了後、いったんほぐれた状態の衣類を再度バランスよく回転ドラムに張り付かせる時間を省くことができ、すすぎ時間を短縮することができる。
【００２１】
【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。なお、従来例と同じ構成のものは同一符号を付して説明を省略する。
【００２２】
（実施例１）
図１および図２に示すように、制御装置２１は、マイクロコンピュータで構成した制御手段２２を有し、パワースイッチング手段１５を介してモータ５、排水ポンプ１０、給水弁（給水手段）１１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。
【００２３】
ここで、制御手段２２は、すすぎ行程にて、洗濯物が回転ドラム１の内壁に張り付く程度の回転数で回転ドラム１を回転させ、その遠心力により回転ドラム１内を循環させたすすぎ水を回転ドラム１内の洗濯物にかけるようにしている。
【００２４】
上記構成においてすすぎ行程の動作を説明する。すすぎ行程が開始すると、まず、モータ５を所定の回転数および所定の時間において、連続回転駆動し、回転ドラム１内の洗濯物を回転ドラム１の内壁に貼り付けた状態で回転数を高速（例えば９００ｒ／ｍｉｎ）にし、その遠心力によって洗濯物内の水分を飛ばして脱水を行う。
【００２５】
ついで、給水弁１１が動作して給水し、水受け槽３に入る。水位検知手段１２により所定の水位Ｎ１を検知するとモータ５を駆動する。また、所定の水位Ｎ２（Ｎ１と同等以上）を検知すると給水を停止する。
【００２６】
このとき、回転ドラム１を洗濯物が回転ドラム１の内壁に張り付く程度の回転数Ｓ１（例えば２００ｒ／ｍｉｎ）で連続回転させると、遠心力の作用で、回転ドラム１内のすすぎ水は張り付いた洗濯物を通過して、回転ドラム１の外周部の通水孔２を通り、水受け槽３の方へ移動して、回転ドラム１と水受け槽３間を上昇し、前面上部より溢れ出て、回転ドラム１内の洗濯物にかかる。このように、洗濯物を通過するすすぎ水が洗濯物に含まれる洗剤成分を希釈して、すすぎを行う。
【００２７】
このように本実施例によれば、すすぎ水を回転ドラム１内の洗濯物に通過させるようにかけることで、少ないすすぎ水でも、回転ドラム１内の洗濯物にすすぎ水をしみ込みやすくでき、また、洗剤成分を洗濯物から抜けやすくできて、洗濯物内の洗剤成分を希釈しやすくできるため、すすぎむらを低減できるとともにすすぎ力を向上することができ、すすぎ時間を短縮することができる。
【００２８】
（実施例２）
図３に示すように、回転ドラム１は、水受け槽３内に回転自在に配設し、回転ドラム１の回転軸４を回転中心に前面が高い、略斜め方向になるように、水受け槽３を洗濯機本体２３よりばね体２４で揺動可能に吊り下げている。
【００２９】
制御装置２１を構成する制御手段２２は、すすぎ行程にて、回転ドラム１を洗濯物が回転ドラム１の内壁に張り付く程度の回転数で回転させ、回転ドラム１内を循環させたすすぎ水を、回転ドラム１内の洗濯物に対し、回転ドラム１の回転中心軸の高位置側からかけるようにしている。他の構成は上記実施例１と同じであり、同一符号を付して説明を省略する。
【００３０】
上記構成においてすすぎ行程における動作を説明する。所定の水位Ｎ２（Ｎ１と同等以上）を検知して給水を停止させた後、洗濯物が回転ドラム１の内壁に張り付く程度の回転数Ｓ１（例えば２００ｒ／ｍｉｎ）で連続回転させると、遠心力の作用で、回転ドラム１内のすすぎ水は張り付いた洗濯物を通過して、回転ドラム１の外周部の通水孔２を通り、水受け槽３の方へ移動して、回転ドラム１と水受け槽３間を上昇し、回転ドラム１の高位置側の前面上部より溢れ出て、斜め方向に落ち、低い位置に片寄った洗濯物にかかる。このとき、洗濯物を通過するすすぎ水が洗濯物に含まれる洗剤成分を希釈する。
【００３１】
このように本実施例によれば、回転ドラム１の回転中心軸を斜め方向にすることで、低い位置に片寄った洗濯物に、逆の高い位置側から斜め方向に、すすぎ水を回転ドラム１内の洗濯物にかけることができ、回転中心軸が水平方向のものより、すすぎ水が斜め方向に広い範囲でかかりやすくなる。
【００３２】
これにより、回転中心軸が水平方向のものより、さらに、回転ドラム１内の洗濯物全体にすすぎ水をしみ込みやすくでき、また、洗剤成分を洗濯物から抜けやすくできて、洗濯物内の洗剤成分を希釈しやすくできるため、すすぎむらを低減できるとともにすすぎ力を向上することができ、すすぎ時間を短縮することができる。
【００３３】
（実施例３）
図４に示すように、回転数検知手段２５は、回転ドラム１の回転数を検知するもので、その出力を制御装置２６を構成する制御手段２７に入力している。制御手段２７は、回転ドラム１内にすすぎ水を供給しながら、回転数検知手段２５の出力に基づいて回転ドラム１の回転数を制御するように構成している。他の構成は上記実施例１または２と同じであり、同一符号を付して説明を省略する。
【００３４】
上記構成においてすすぎ行程における動作を説明する。回転ドラム１を回転させながらすすぎ水を回転ドラム１内に循環させ、前方上部より供給するときに回転数を制御することで、回転数を低くすると、回転ドラム１内に張り付いた洗濯物間にゆとりができてすすぎ水をしみ込みやすくできて、若干洗濯物がこすれあいながら回転してすすぎ水が洗濯物内の洗剤成分に作用しやすくでき、また、回転数を高くすると回転ドラム１内に洗濯物が張り付き、すすぎ水が洗濯物を通過して、洗剤成分を洗濯物から抜けやすくできる。
【００３５】
このように本実施例によれば、回転ドラム１内にすすぎ水を供給しながら、回転ドラム１の回転数を制御することにより、一定の回転数で回転ドラム１を回転させるものより、洗濯物内の洗剤成分を希釈しやすくできるため、すすぎむらを低減できるとともにすすぎ力を向上することができ、すすぎ時間を短縮することができる。
【００３６】
（実施例４）
図１に示す制御手段２２は、回転ドラム１内の洗濯物にすすぎ水をかけた後、回転ドラム１内の洗濯物がすすぎ水を含んだ状態で、回転ドラム１を正転、反転する行程を少なくとも一回行うようにしている。他の構成は上記実施例１〜３と同じである。
【００３７】
上記構成においてすすぎ行程における動作を説明する。制御手段２２は、回転ドラム１内の洗濯物にすすぎ水をかけた後、回転ドラム１を正転、反転して洗濯物に機械力を与える。
【００３８】
このように本実施例によれば、回転ドラム１内の洗濯物がすすぎ水を含んだ状態で洗濯物に機械力を作用するようにしたことで、すすぎ水を洗濯物内の洗剤成分にまんべんなく接触しやすくできて、より多くの洗剤成分を希釈することができ、すすぎむらを低減できるとともにすすぎ力を向上することができる。
【００３９】
（実施例５）
図１に示す制御手段２２は、脱水終了後の惰性回転途中からすすぎ行程の給水をするようにしている。他の構成は上記実施例１〜４と同じである。
【００４０】
上記構成においてすすぎ行程における動作を説明する。制御手段２２は、脱水のモータ５駆動停止後、回転数が減速してくる惰性回転中に、所定回転数Ｓ２（例えば３００ｒ／ｍｉｎ）を検知すると、回転ドラム１内に洗濯物が張り付いたままの状態で給水を行い、続けて回転数Ｓ１（例えば２００ｒ／ｍｉｎ）で連続回転させてすすぎ水を循環させることで、バランスよく回転させることができる。
【００４１】
このように本実施例によれば、脱水終了後の惰性回転途中からすすぎ行程の給水をすることにより、脱水終了後、回転ドラム１内に洗濯物が張り付いたままの状態で給水を行い、続けてすすぎ水を循環させることで、バランスよく回転させることができる。また、脱水終了後、いったんほぐれた状態の衣類を再度バランスよく回転ドラム１に張り付かせる時間を省くことができ、すすぎ時間を短縮することができる。
【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、すすぎ行程にて、洗濯物が回転ドラムの内壁に張り付く程度の回転数で回転ドラムを回転させ、その遠心力で回転ドラム内を循環させたすすぎ水を、回転ドラム内の洗濯物にかけるように構成したことにより、すすぎ水を回転ドラム内の洗濯物に通過させるようにかけることで、少ないすすぎ水でも、回転ドラム内の洗濯物にすすぎ水をしみ込みやすくでき、また、洗剤成分を洗濯物から抜けやすくできて、洗濯物内の洗剤成分を希釈しやすくできるため、すすぎむらを低減できるとともにすすぎ力を向上することができ、すすぎ時間を短縮することができる。
【図面の簡単な説明】
【図１】本発明の第１の実施例のドラム式洗濯機のブロック回路図
【図２】同ドラム式洗濯機の断面図
【図３】本発明の第２の実施例のドラム式洗濯機の断面図
【図４】本発明の第４の実施例のドラム式洗濯機のブロック回路図
【図５】従来のドラム式洗濯機の断面図
【図６】同ドラム式洗濯機のブロック回路図
【符号の説明】
１回転ドラム
３水受け槽
４回転軸（回転中心軸）
５モータ
１１給水弁（給水手段）
２２制御手段[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a drum type washing machine that puts laundry into a rotating drum and sequentially controls each process such as washing, rinsing, and spin-drying and performs washing.
[0002]
[Prior art]
Conventionally, this type of drum type washing machine has been configured as shown in FIGS. 5 and 6 (for example, see Patent Document 1). Hereinafter, the configuration will be described.
[0003]
As shown in FIGS. 5 and 6, the rotary drum 1 is provided with a large number of water passage holes 2 on the entire outer peripheral portion and is rotatably disposed in a water receiving tank 3. A rotation shaft (rotation center shaft) 4 is provided substantially horizontally at the rotation center of the rotation drum 1, and a motor 5 is connected to the rotation shaft 4 to rotate the rotation drum 1. Several projecting plates 6 are provided on the inner wall surface of the rotating drum 1.
[0004]
The water receiving tub 3 is swingably suspended from the washing machine main body 7 by a spring body 8. One end of a drain hose 9 is connected to a lower portion of the water receiving tub 3, and the other end of the hose 9 is connected to a drain pump 10. Then, the washing water in the water receiving tub 3 is drained. The water supply valve 11 supplies water into the water receiving tank 3. The water level detecting means 12 detects the water level in the water receiving tank 3.
[0005]
The control device 13 has a control means 14 constituted by a microcomputer, controls the operation of the motor 5, the drain pump 10, the water supply valve 11 and the like via the power switching means 15, and performs a series of operations such as washing, rinsing, and dehydration. The process is controlled sequentially. The input setting means 16 sets a driving course and the like, and the control means 14 inputs information from the input setting means 16 and displays a display means 17 based on the information to notify the user. The storage unit 18 stores data necessary for control by the control unit 15. Reference numeral 19 denotes a commercial power supply, and reference numeral 20 denotes a power switch.
[0006]
The operation in the above configuration will be described. When laundry and detergent are put into the rotating drum 1, a power source and a start button (not shown) are pressed and a washing process is started, the water supply valve 11 is operated to supply water, and the water level is increased. When the predetermined water level N1 is detected by the detection means 12, the motor 5 is driven. Further, when a predetermined water level N2 (equal to or greater than N1) is detected, the water supply is stopped.
[0007]
In the washing process, the rotating drum 1 is driven forward, stop, reverse, and stop by the motor 5 at a predetermined rotation speed and a predetermined time while supplying replenishing water because the laundry contains water. The laundry is caught on the protruding plate 6, lifted and falls on the water surface. By this operation, the detergent is gradually dissolved to form washing water, which acts on the soil of the laundry. When the washing process is completed, the drainage pump 10 is operated to drain the washing water in the water receiving tub 3.
[0008]
In the rinsing process, first, the motor 5 is continuously rotated at a predetermined rotation speed and a predetermined time, and the rotation speed is increased while the laundry in the rotating drum 1 is stuck on the inner wall of the rotating drum 1. The water in the laundry is removed by centrifugal force to perform dehydration.
[0009]
Then, in the same manner as in the washing process, the rotating drum 1 is driven forward, stop, reverse, and stop by the motor 5 at a predetermined number of rotations and a predetermined time while replenishing water. It is caught on the plate 6, lifted and falls on the water surface. By this operation, rinsing water is included in the laundry, and the detergent liquid in the laundry is diluted. When the rinsing process is completed, the drainage pump 10 is operated to drain the rinse water in the water receiving tank 3.
[0010]
[Patent Document 1]
JP-A-10-216390
[Problems to be solved by the invention]
In such a conventional configuration, in the rinsing step, the rotating drum 1 is rotated forward, stopped, reversed, and stopped to apply mechanical power while allowing the laundry in the rotating drum 1 to contain rinsing water, thereby improving rinsing performance. Have secured.
[0012]
For this reason, in a drum type washing machine with a small amount of water supply, it takes time to uniformly apply the rinsing water to the laundry, so that uneven rinsing occurs, the rinsing power is reduced, and the rinsing time is long. Had become one. In addition, it was necessary to increase the amount of water used in order to improve the rinsing power.
[0013]
The present invention solves the above-mentioned conventional problems, and in the rinsing process, circulates rinsing water in a rotating drum and allows rinsing water to pass through the laundry, thereby reducing rinsing unevenness without increasing the amount of water used. The purpose is to improve the rinsing power and shorten the rinsing time.
[0014]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, a rotating drum having a rotation center axis in a substantially horizontal direction is rotatably disposed in a water receiving tank, and the rotating drum is driven by a motor to supply water into the water receiving tank. And the control means controls the operation of the motor to control the respective steps of washing, rinsing, and dehydrating, and the control means rotates the rinsing stroke to such an extent that the laundry sticks to the inner wall of the rotary drum. The number of rotations of the rotating drum is such that rinsing water circulated in the rotating drum by the centrifugal force is applied to the laundry in the rotating drum.
[0015]
As a result, the rinse water can be applied to the laundry in the rotating drum so that the rinse water can easily penetrate into the laundry in the rotating drum, and the detergent component can be removed from the laundry. Since it can be easily removed and the detergent component in the laundry can be easily diluted, the unevenness of rinsing can be reduced, the rinsing power can be improved, and the rinsing time can be reduced without increasing the amount of water used.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 of the present invention provides a rotating drum having a rotation center axis in a substantially horizontal direction and rotatably disposed in a water receiving tank, a motor for driving the rotating drum, and the water receiving tank. Water supply means for supplying water into the inside, and control means for controlling the operation of the motor to control each step of washing, rinsing, and spin-drying. The rotating drum is rotated at such a speed as to stick to the washing drum, and the rinsing water circulated in the rotating drum is applied to the laundry in the rotating drum by the centrifugal force of the rotating drum. It can be applied so that it passes through the laundry inside, even with a small amount of rinsing water, it can easily soak the rinsing water into the laundry in the rotating drum, and detergent components can be easily removed from the laundry. Detergent Since it easily diluted minute, it is possible to improve the rinsing force can be reduced and at the same rinsing unevenness, it is possible to reduce the rinsing time.
[0017]
According to a second aspect of the present invention, there is provided a rotary drum having a rotation center axis in a substantially oblique direction and rotatably disposed in a water receiving tank, a motor for driving the rotary drum, and supplying water to the water receiving tank. And a control means for controlling the operation of the motor to control each step of washing, rinsing, and dehydration.The control means controls the degree to which the laundry adheres to the inner wall of the rotating drum during the rinsing step. The rotating drum is rotated at the rotation speed of, and the rinsing water circulated in the rotating drum by the centrifugal force is applied to the laundry in the rotating drum from a high position side of the rotation center axis of the rotating drum. By rinsing the laundry in the rotating drum with the washing water circulated in the rotating drum from the opposite high position side to the laundry that is biased to the lower position with the rotation center axis inclined, Rotation center axis is horizontal Rinse than countercurrent water predisposes a wide range in an oblique direction. As a result, the rinsing water can be more easily soaked into the laundry in the rotating drum, and the detergent component can be easily removed from the laundry, and the detergent component in the laundry can be easily removed. Can be easily diluted, so that rinsing unevenness can be reduced, the rinsing force can be improved, and the rinsing time can be shortened.
[0018]
According to a third aspect of the present invention, in the first or second aspect, the control means controls the number of revolutions of the rotary drum while supplying rinsing water into the rotary drum. The rotating speed of the rotating drum is such that the laundry sticks to the inner wall of the rotating drum, and the rinsing water circulated in the rotating drum by the centrifugal force is applied to the laundry in the rotating drum. By controlling the rotation speed, if the rotation speed is lowered, there is room between the laundry stuck in the rotating drum and it is easy to soak the rinsing water. It can easily act on the detergent components inside, and when the rotation speed is increased, the laundry sticks in the rotating drum, rinsing water can pass through the laundry and the detergent components can be easily removed from the laundry, and further, Since it easily diluted detergent components in 濯物, it can improve the rinsing force can be reduced and at the same rinsing unevenness, it is possible to reduce the rinsing time.
[0019]
According to a fourth aspect of the present invention, in the first to third aspects of the present invention, the control means includes a step of rinsing the laundry in the rotating drum, and then rotating and rotating the rotating drum forward and reverse. It is designed to be performed at least once, and the laundry in the rotating drum contains the rinse water, and by applying mechanical force to the laundry, it is easy to evenly contact the rinse water with the detergent components in the laundry. As a result, more detergent components can be diluted, rinsing unevenness can be reduced, and rinsing power can be improved.
[0020]
According to a fifth aspect of the present invention, in the first to fourth aspects of the present invention, the control means is configured to supply water in a rinsing stroke from the middle of the inertial rotation after the end of dehydration. Water can be supplied in a state where laundry is stuck in the rotating drum, and rinsing water is continuously circulated, so that the drum can be rotated in a well-balanced manner. Further, after the spin-drying is completed, it is possible to omit the time for attaching the loosened clothing to the rotating drum again in a well-balanced manner, and to shorten the rinsing time.
[0021]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings. Components having the same configuration as the conventional example are denoted by the same reference numerals, and description thereof is omitted.
[0022]
(Example 1)
As shown in FIGS. 1 and 2, the control device 21 has a control means 22 constituted by a microcomputer, and controls a motor 5, a drain pump 10, a water supply valve (water supply means) 11 via a power switching means 15. The operation is controlled, and a series of steps such as washing, rinsing, and dehydrating are sequentially controlled.
[0023]
Here, the control means 22 rotates the rotating drum 1 at a rotation speed such that the laundry sticks to the inner wall of the rotating drum 1 during the rinsing stroke, and removes the rinsing water circulated in the rotating drum 1 by the centrifugal force. The laundry is put on the laundry in the rotating drum 1.
[0024]
The operation of the rinsing step in the above configuration will be described. When the rinsing process starts, first, the motor 5 is continuously rotated at a predetermined rotation speed and a predetermined time, and the rotation speed is increased at a high speed in a state where the laundry in the rotary drum 1 is stuck to the inner wall of the rotary drum 1 ( For example, at 900 r / min), the centrifugal force is used to blow off the water in the laundry to perform dehydration.
[0025]
Next, the water supply valve 11 operates to supply water, and enters the water receiving tank 3. When the predetermined water level N1 is detected by the water level detection means 12, the motor 5 is driven. Further, when a predetermined water level N2 (equal to or greater than N1) is detected, the water supply is stopped.
[0026]
At this time, when the rotating drum 1 is continuously rotated at a rotation speed S1 (for example, 200 r / min) at which the laundry sticks to the inner wall of the rotating drum 1, the rinsing water in the rotating drum 1 sticks due to the action of centrifugal force. After passing through the laundry, passing through the water holes 2 in the outer peripheral portion of the rotating drum 1 and moving toward the water receiving tub 3, it rises between the rotating drum 1 and the water receiving tub 3 and overflows from the upper front part. It comes out and hangs on the laundry in the rotating drum 1. In this way, the rinsing water passing through the laundry dilutes the detergent components contained in the laundry and performs rinsing.
[0027]
As described above, according to the present embodiment, rinsing water is passed through the laundry in the rotating drum 1 so that even with a small amount of rinsing water, the rinsing water can easily permeate the laundry in the rotating drum 1, In addition, since the detergent component can be easily removed from the laundry and the detergent component in the laundry can be easily diluted, the unevenness in rinsing can be reduced, the rinsing power can be improved, and the rinsing time can be shortened.
[0028]
(Example 2)
As shown in FIG. 3, the rotating drum 1 is rotatably disposed in a water receiving tank 3. The tub 3 is swingably suspended from the washing machine main body 23 by a spring body 24.
[0029]
The control means 22 constituting the control device 21 rotates the rotating drum 1 at a rotation speed such that the laundry adheres to the inner wall of the rotating drum 1 during the rinsing stroke, and rinses the circulating water in the rotating drum 1 with the washing water. The laundry in the rotating drum 1 is applied from the high position side of the rotation center axis of the rotating drum 1. The other configuration is the same as that of the first embodiment, and the same reference numerals are given and the description is omitted.
[0030]
The operation in the rinsing step in the above configuration will be described. After detecting a predetermined water level N2 (equal to or more than N1) and stopping water supply, if the laundry is continuously rotated at a rotation speed S1 (for example, 200 r / min) at which the laundry sticks to the inner wall of the rotating drum 1, centrifugal force As a result, the rinsing water in the rotating drum 1 passes through the attached laundry, passes through the water holes 2 in the outer peripheral portion of the rotating drum 1, moves toward the water receiving tank 3, and moves to the rotating drum 1. , And overflows from the upper portion of the front surface on the high position side of the rotary drum 1, falls diagonally, and hits the laundry leaning toward a lower position. At this time, the rinse water passing through the laundry dilutes the detergent components contained in the laundry.
[0031]
As described above, according to this embodiment, the rotation center axis of the rotating drum 1 is inclined, so that the washing water which is biased toward the lower position is rinsed with the rinsing water obliquely from the opposite higher position side. Rinsing water can be applied over a wider area in a diagonal direction than when the rotation center axis is horizontal.
[0032]
This makes it easier for the rinsing water to permeate the entire laundry in the rotating drum 1 than in the case where the rotation center axis is horizontal, and also makes it easier for detergent components to escape from the laundry. Since the components can be easily diluted, uneven rinsing can be reduced, the rinsing power can be improved, and the rinsing time can be shortened.
[0033]
(Example 3)
As shown in FIG. 4, the rotation number detecting means 25 detects the rotation number of the rotating drum 1, and outputs its output to a control means 27 constituting a control device 26. The control unit 27 is configured to control the rotation speed of the rotary drum 1 based on the output of the rotation speed detection unit 25 while supplying the rinsing water into the rotation drum 1. The other configuration is the same as that of the first or second embodiment, and the same reference numerals are given and the description is omitted.
[0034]
The operation in the rinsing step in the above configuration will be described. By circulating the rinsing water in the rotating drum 1 while rotating the rotating drum 1 and controlling the rotating speed when supplying from the front upper portion, if the rotating speed is lowered, the washing water stuck in the rotating drum 1 is reduced. The washing water can be easily absorbed and the washing water can be easily rubbed, and the washing water can easily rotate and the washing water can easily act on the detergent component in the washing. The laundry can be stuck to the laundry and rinse water can pass through the laundry so that detergent components can be easily removed from the laundry.
[0035]
As described above, according to the present embodiment, by controlling the number of rotations of the rotating drum 1 while supplying the rinsing water into the rotating drum 1, the laundry can be washed more than rotating the rotating drum 1 at a constant number of rotations. Since the detergent component inside can be easily diluted, rinsing unevenness can be reduced, the rinsing power can be improved, and the rinsing time can be shortened.
[0036]
(Example 4)
The control means 22 shown in FIG. 1 applies a rinsing water to the laundry in the rotary drum 1 and then rotates and reverses the rotary drum 1 in a state where the laundry in the rotary drum 1 contains the rinsing water. Is performed at least once. Other configurations are the same as those of the first to third embodiments.
[0037]
The operation in the rinsing step in the above configuration will be described. After rinsing the laundry in the rotating drum 1 with rinsing water, the control means 22 rotates the rotating drum 1 forward and reverse to apply mechanical force to the laundry.
[0038]
As described above, according to the present embodiment, the laundry in the rotating drum 1 applies mechanical force to the laundry in a state where the laundry contains the rinsing water, so that the rinsing water is evenly distributed to the detergent components in the laundry. The contact can be easily made, more detergent components can be diluted, the rinsing unevenness can be reduced, and the rinsing power can be improved.
[0039]
(Example 5)
The control means 22 shown in FIG. 1 supplies water during the rinsing stroke from the middle of the inertial rotation after the end of spin-drying. Other configurations are the same as those in the first to fourth embodiments.
[0040]
The operation in the rinsing process in the above configuration will be described. When the control unit 22 detects the predetermined rotation speed S2 (for example, 300 r / min) during the inertia rotation in which the rotation speed is reduced after the drive of the spinning motor 5 is stopped, the laundry sticks in the rotating drum 1. By supplying water in the state as it is and continuously rotating the rinse water at the rotation speed S1 (for example, 200 r / min) to circulate the rinse water, the water can be rotated in a well-balanced manner.
[0041]
As described above, according to the present embodiment, by supplying water in the rinsing process from the middle of the inertial rotation after the end of spin-drying, after spin-drying, water is supplied while the laundry is stuck in the rotating drum 1, By circulating the rinse water continuously, it can be rotated in a well-balanced manner. Further, after the spin-drying is completed, it is possible to omit the time for attaching the loosened clothing to the rotating drum 1 again in a well-balanced manner, and to shorten the rinsing time.
[0042]
【The invention's effect】
As described above, according to the first aspect of the present invention, in the rinsing process, the rotating drum is rotated at such a speed that the laundry sticks to the inner wall of the rotating drum, and the rotating drum is rotated by the centrifugal force. The rinsing water circulated in the inside of the rotating drum is applied to the laundry in the rotating drum. The washing water can be easily soaked into the laundry, and the detergent component can be easily removed from the laundry, and the detergent component in the laundry can be easily diluted, so that the uneven rinsing can be reduced and the rinsing power can be improved. And the rinsing time can be reduced.
[Brief description of the drawings]
FIG. 1 is a block circuit diagram of a drum type washing machine according to a first embodiment of the present invention. FIG. 2 is a sectional view of the drum type washing machine. FIG. 3 is a drum type washing machine according to a second embodiment of the present invention. FIG. 4 is a block circuit diagram of a drum type washing machine according to a fourth embodiment of the present invention. FIG. 5 is a cross sectional view of a conventional drum type washing machine. FIG. 6 is a block circuit diagram of the drum type washing machine. [Explanation of symbols]
1 rotating drum 3 water receiving tank 4 rotating shaft (rotating center shaft)
5 Motor 11 Water supply valve (water supply means)
22 Control means

Claims

回転中心軸を略水平方向に有し水受け槽内に回転自在に配設した回転ドラムと、前記回転ドラムを駆動するモータと、前記水受け槽内に給水する給水手段と、前記モータの動作を制御し洗濯、すすぎ、脱水の各行程を制御する制御手段とを備え、前記制御手段は、すすぎ行程にて、洗濯物が前記回転ドラムの内壁に張り付く程度の回転数で前記回転ドラムを回転させ、その遠心力により回転ドラム内を循環させたすすぎ水を前記回転ドラム内の洗濯物にかけるように構成したドラム式洗濯機。A rotary drum having a rotation center axis in a substantially horizontal direction and rotatably disposed in a water receiving tank, a motor for driving the rotary drum, water supply means for supplying water to the water receiving tank, and operation of the motor And control means for controlling each step of washing, rinsing, and dehydration, wherein the control means rotates the rotating drum at a rotation speed such that the laundry sticks to the inner wall of the rotating drum in the rinsing step. And a rinsing water circulated in the rotating drum by the centrifugal force, and is applied to the laundry in the rotating drum.

回転中心軸を略斜め方向に有し水受け槽内に回転自在に配設した回転ドラムと、前記回転ドラムを駆動するモータと、前記水受け槽内に給水する給水手段と、前記モータの動作を制御し洗濯、すすぎ、脱水の各行程を制御する制御手段とを備え、前記制御手段は、すすぎ行程にて、洗濯物が前記回転ドラムの内壁に張り付く程度の回転数で前記回転ドラムを回転させ、その遠心力により回転ドラム内を循環させたすすぎ水を前記回転ドラム内の洗濯物に対し、前記回転ドラムの回転中心軸の高位置側からかけるように構成したドラム式洗濯機。A rotating drum having a rotation center axis in a substantially oblique direction and rotatably disposed in a water receiving tank, a motor for driving the rotating drum, water supply means for supplying water to the water receiving tank, and operation of the motor And control means for controlling each step of washing, rinsing, and dehydration, wherein the control means rotates the rotating drum at a rotation speed such that the laundry sticks to the inner wall of the rotating drum in the rinsing step. And a rinsing water circulated in the rotating drum by the centrifugal force, and is applied to the laundry in the rotating drum from a position higher than a rotation center axis of the rotating drum.

制御手段は、回転ドラム内にすすぎ水を供給しながら前記回転ドラムの回転数を制御するようにした請求項１または２記載のドラム式洗濯機。3. The drum type washing machine according to claim 1, wherein the control means controls the number of rotations of the rotary drum while supplying rinsing water into the rotary drum.

制御手段は、回転ドラム内の洗濯物にすすぎ水をかけた後、前記回転ドラムを正転、反転する行程を少なくとも一回行うようにした請求項１〜３のいずれか１項に記載のドラム式洗濯機。The drum according to any one of claims 1 to 3, wherein the control means performs a process of rotating the rotating drum forward and backward at least once after rinsing the laundry in the rotating drum with rinsing water. Type washing machine.

制御手段は、脱水終了後の惰性回転途中からすすぎ行程の給水をするようにした請求項１〜４のいずれか１項に記載のドラム式洗濯機。The drum type washing machine according to any one of claims 1 to 4, wherein the control means supplies water during a rinsing stroke from the middle of the inertial rotation after the completion of the spin-drying.