JP3651206B2 - Laundry equipment - Google Patents

Description

【００２８】
このように本実施例によれば、通常の衣類を洗濯するための「標準コース」であれば５３ｒ／ｍｉｎ、化繊を洗濯するための「化繊コース」であれば４５ｒ／ｍｉｎで洗濯するので、洗濯物の布質に関係なく、持ち上げられた後に水面上に落下されて、たたき洗い状態となり、所定の洗浄効果が得られる。
【００２９】
なお、本実施例では、第１のモータ１５および第２のモータ１６は、インダクションモータ２つで構成しているが、整流子モータなど１つであってもよい。
【００３０】
（実施例２）
図３における制御手段２７は、スタート・一時停止スイッチ３１ｃを操作して運転を開始すると、給水弁２９を動作させて水受け槽３内に給水し、水位検知手段３３により所定の水位（たとえば、ドラム内水位が５０ｍｍ）を検知すると給水を停止し、第１のモータ１５を駆動して洗濯を開始する。洗濯時には洗濯物に水が含まれるため、（表２）に示すように、コース毎に決められた水位まで補給水しながら第１のモータ１５を駆動する。
【００３１】
【表２】

【００３２】
このように本実施例によれば、通常の衣類を洗濯するための「標準コース」であれば、ドラム内水位が５０ｍｍになるように、化繊を洗濯するための「化繊コース」であれば、ドラム内水位が１５０ｍｍになるように補給水しながら洗濯するので、洗濯物が化繊であってもドラム１内に張り付くことなく、洗濯物が浸水した状態で洗濯でき、所定の洗浄効果が得られる。
【００３３】
（実施例３）
図３における制御手段２７は、ドラム１を第２の回転数Ｎ２で駆動する脱水行程の前に、図５に示すように、ドラム１を第１の回転数Ｎ１で駆動する布ほぐし行程と、第１の回転数Ｎ１から第３の回転数Ｎ３（たとえば、１００ｒ／ｍｉｎ）に徐々に回転数を上昇させる布バランス行程と、布バランス行程の後、脱水可能な第４の回転数Ｎ４（たとえば、２００ｒ／ｍｉｎ）で駆動する第１の予備脱水行程と、第１の予備脱水行程後に第３の回転数Ｎ３で駆動し洗濯物のアンバランスを検知し判定するアンバランス判定行程とを経て脱水行程に入るようにしている。
【００３４】
布ほぐし行程でのドラム１の回転方向を布バランス行程以降の回転方向と逆方向にし、第３の回転数Ｎ３は、洗濯物がドラム１の内壁に張り付く回転数とし、第１の予備脱水行程の第４の回転数Ｎ４は、水受け槽３などの振動共振点に対応する回転数より低い回転数とし、第４の回転数Ｎ４は第２のモータ１６で駆動するようにしている。
【００３５】
アンバランス判定行程では、まず、回転数検知手段３５により第１のモータ１５の回転数を検知し、この検知結果により第１のモータ１５を第３の回転数Ｎ３に制御し、その後、このときのスイッチング手段２８の導通角を固定して第１のモータ１５を駆動する。この固定導通角により駆動するときの第１のモータ１５の回転数変動幅でドラム１内の洗濯物の状態を判定し、回転数変動幅が所定値より小さいときは脱水行程に進み、回転数変動幅が大きいときは、ドラム１内の洗濯物がアンバランス状態であると判定し、ドラム１を一旦停止させた後に布ほぐし行程からやり直すようにしている。
【００３６】
この布ほぐし行程から脱水行程までの一連の動作において、脱水時間、アンバランスと判定する回転数変動幅、第１の予備脱水の有無の３項目について、（表３）に示すように、コース毎に変えるようにしている。
【００３７】
【表３】

【００３８】
このように本実施例によれば、通常の衣類を洗濯するための「標準コース」であれば脱水時間５分、化繊を洗濯するための「化繊コース」であれば脱水時間１分とするので、洗濯物が化繊である場合は、所定の脱水性能を維持しつつ脱水運転時間を短縮でき、そして洗濯時間が短縮できて消費電力も低減できる。
【００３９】
また、アンバランス判定行程でのアンバランスと判定する回転数変動幅を「標準コース」であれば５ｒ／ｍｉｎ、「化繊コース」であれば１０ｒ／ｍｉｎとすることでも、洗濯物が化繊である場合に、振動や騒音を悪化させることなく運転時間を短縮でき、消費電力も低減できる。
【００４０】
また、第１の予備脱水行程を「標準コース」であれば有り、「化繊コース」であれば無しとすることでも、洗濯物が化繊である場合に、振動や騒音を悪化させることなく運転時間を短縮でき、消費電力も低減できる。
【００４１】
（実施例４）
図３における制御手段２７は、ドラム１を第２の回転数Ｎ２で駆動する脱水行程において、脱水回転数Ｎ２を（表４）に示すように、コース毎に変えるようにしている。
【００４２】
【表４】

【００４３】
このように本実施例によれば、通常の衣類を洗濯するための「標準コース」であれば脱水回転数を１０００ｒ／ｍｉｎ、化繊を洗濯するための「化繊コース」であれば脱水回転数を６００ｒ／ｍｉｎとするので、所定の脱水性能を維持しつつ脱水時のドラム回転数を低くでき、ドラム内の洗濯物がアンバランスであっても振動や騒音を低減することができる。
【００４４】
（実施例５）
図３における制御手段２７は、図６に示すように、洗濯行程に続いて乾燥行程を実行できるようにしている。洗い行程の後、中間脱水と給水とすすぎを１サイクルとして、３サイクルのためすすぎを行うようにし、そして第２の予備脱水を行った後に最終脱水を行い、乾燥行程を行うようにしている。
【００４５】
ここで、第２の予備脱水は、図７に示すように、布ほぐし行程、布バランス行程、アンバランス判定行程、予備脱水行程を１サイクルとして、３サイクル行うようにしており、また、予備脱水でのドラム１の回転数は、１回目がＮ５（たとえば、４００ｒ／ｍｉｎ）、２回目がＮ６（たとえば、５００ｒ／ｍｉｎ）、３回目がＮ７（たとえば、６００ｒ／ｍｉｎ）とすることにより、予備脱水のたびに洗濯物をドラム１の内壁から剥離するとともに、洗濯物の含水率を徐々に低減することができ、最終脱水終了時には洗濯物を簡単に剥離することができ、乾燥行程で洗濯物がドラム１の内壁に張り付いたままということなく、しわがなくふんわりと乾燥することができる。
【００４６】
なお、それぞれのサイクルの中でのアンバランス判定行程で、洗濯物がアンバランスであると判定されたときは、そのサイクルの布ほぐし行程にもどるようにして、確実に予備脱水を行うようにしている。
【００４７】
また、図３における布質判別手段３７は、洗濯物の布質を、綿多め、普通、化繊多めの３段階に判別するようにし、制御手段２７は、布質判別結果により（表５）に示すパターンで第２の予備脱水を行うようにしている。
【００４８】
【表５】

【００４９】
このように本実施例によれば、綿類が多い場合にはドラム１の回転数がＮ５、Ｎ６、Ｎ７の第２の予備脱水を３回行うことにより、洗濯物をドラム１の内壁から剥離するとともに洗濯物の含水率を徐々に低減することができ、最終脱水終了時には洗濯物を簡単に剥離することができ、乾燥行程で洗濯物がドラム１の内壁に張り付いたままということなく確実に乾燥することができる。
【００５０】
逆に、化繊類が多い場合は、脱水前の含水率が低いので第２の予備脱水が１回でも最終脱水終了時には洗濯物を簡単に剥離することができ、しかも洗濯運転時間を短縮できて消費電力も低減できる。
【００５１】
（実施例６）
図３における布質判別手段３７は、洗濯物の布質を、綿多め、普通、化繊多めの３段階に判別するようにし、また、図３における洗濯物量検知手段３６は、洗濯開始時の洗濯物が乾いた状態で、回転数検知手段３５の出力を入力し、ドラム１を第２のモータ１６で洗濯物がドラム１の内壁に張り付く回転数（たとえば、６００ｒ／ｍｉｎ）で駆動し、第２のモータ１６を遮断した後、ドラム１の惰性回転数の変化（たとえば、５００ｒ／ｍｉｎから６秒後の回転数の変化）でドラム１内の洗濯物の量を検知するようにしている。
【００５２】
このとき、ドラム１の惰性回転数の変化は、ベルト１７、１８のテンション、周囲温度などにより変化するため、第２のモータ１６で駆動したときのドラム１の立ち上がりの回転数の変化（たとえば、２００ｒ／ｍｉｎから３秒後の回転数の変化）で補正するようにしている。すなわち、ベルト１７、１８のテンションが高いと、第２のモータ１６を遮断した後のドラム１の惰性回転数の変化が大きく、立ち上がりの回転数の変化が小さい。また、周囲温度が低いと、第２のモータ１６を遮断した後のドラム１の惰性回転数の変化が大きく、立ち上がりの回転数の変化が小さい。したがって、立ち上がりの回転数の変化と惰性回転数の変化の両方を調べることで、ベルト１７、１８のテンションと周囲温度の影響を補正することができる。
【００５３】
さらに、第２のモータ１６で駆動したときのドラム１の立ち上がりの回転数の変化は、商用電源４０の電圧により変化するため、商用電源４０の電圧を検知する電圧検知手段（図示せず）の出力により補正するようにしている。すなわち、商用電源４０の電圧が高いと、立ち上がりの回転数の変化が大きくなる。したがって、電圧検知手段の出力により補正することができる。
【００５４】
制御手段２７は、洗濯物量検知手段３６での検知結果と布質判別手段３７での判別結果を入力して、乾燥行程を制御する。すなわち、乾燥用ヒータ２１をオン、オフ制御して熱風供給手段２２の供給能力を制御するものであり、（表６）に示すように、布質判別結果により、乾燥用ヒータ２１を常にオンする場合から３０秒オン、３０秒オフの間欠動作する場合に分けている。
【００５５】
【表６】

【００５６】
また、乾燥時間は、洗濯物量検知結果と布質判別結果により、（表７）に示すようにしている。
【００５７】
【表７】

【００５８】
このように本実施例によれば、化繊類が多いと判定された場合には、乾燥用ヒータ２１を３０秒オン、３０秒オフの間欠運転とすることにより、熱風温度を下げることができ、衣類にやさしい乾燥がおこなえるとともに、消費電力も低減できる。
【００５９】
また、洗濯物量検知手段３６で検知された布量に基づき基本的な乾燥時間を定め、さらに布質判別手段で化繊類が多いと判定された場合には、基本的な乾燥時間を短くするようにして消費電力を低減することができる。
【００６０】
なお、本実施例では、熱風供給手段の供給能力を変える方法として、乾燥用ヒータ２１をオン、オフするようにしたが、これは乾燥用ヒータ２１を複数に分割してオンする数を制御するようにしてもよく、またファンモータ２３の回転数を制御するようにしてもよい。
【００６１】
（実施例７）
図３における布質判別手段３７は、洗濯物量検知手段３６で検知される布量と水位検知手段３３で検知されるドラム１内の水位を入力し、洗濯物の布質を、綿多め、化繊多めと判別するようにしている。制御手段２７は、スタート・一時停止スイッチ３１ｃを操作して運転を開始すると、給水弁２９を動作させて水受け槽３内に給水し、図８に示すように、水位検知手段３３により所定の水位（たとえば、ｈｉ）を検知すると給水を停止し、第１のモータ１５を駆動して、たとえば２０秒オン３秒オフの時限で正転反転を行い洗濯する。
【００６２】
このとき、洗濯物は徐々に吸水するために水位は下がるが、この水位の低下量は洗濯物の量と質により変わる。また、回転の起動時と停止時には、負圧が加わったり洗濯物に吸水された水が滴下したりして、多少変動する。そこで、洗濯物量が多い場合と少ない場合とに分けて、正転反転を１回行った後のドラム１内の水位により洗濯物の布質を判別するようにしている。
【００６３】
図８は洗濯物量が多い場合の洗濯開始時の水位低下を示しており、ｔ１３時点でのドラム１内の水位は、曲線ａで示す化繊多めの場合がｈａで、曲線ｂで示す綿類多めの場合がｈｂであり、ｈａ＞ｈｂである。したがって、水位ｈａと水位ｈｂの中間にしきい値を設定すれば、化繊多めか綿類多めかの判別が可能となる。
【００６４】
また、図９は洗濯物量が少ない場合を示しており、曲線ｃは化繊多めの場合であり、曲線ｄは綿類多めの場合である。洗濯物量が多い場合と同様に、ｈｃとｈｄの中間にしきい値を設定すれば、化繊多めか綿類多めかの判別が可能となる。
【００６５】
このように本実施例によれば、簡単な構成で精度良く布質を判別することが可能となり、しかも洗濯行程の当初に布質を判別できて、化繊が多めの洗濯物である場合に洗濯時間および乾燥時間を大幅に短縮できる。
【００６６】
なお、本実施例では、正転反転を１回行った後のドラム１内の水位により洗濯物の布質を判別するようにしたが、初期のドラム１内の水位をｈｉよりも高く設定して、複数回正転反転を行ってから布質を判別するようにしてもよい。
【００６７】
（実施例８）
図３における布質判別手段３７は、回転数検知手段３５で検知されるドラム１の回転数を入力し、洗濯物が乾いた状態と濡れた状態での第５の回転数Ｎ５（たとえば５００ｒ／ｍｉｎ）からの惰性回転時間の比により、洗濯物の布質を、綿多め、化繊多めと判別するようにしている。
【００６８】
図１０に示すように、制御手段２７は、スタート・一時停止スイッチ３１ｃを操作して運転を開始すると、ドラム１を第２のモータ１６で洗濯物がドラム１の内壁に張り付く回転数（たとえば、６００ｒ／ｍｉｎ）で駆動する洗濯物量検知を行う。つづいて給水、洗い、排水をおこなった後に、ドラム１の回転数がたとえば１０００ｒ／ｍｉｎの中間脱水１をおこなうようにしている。
【００６９】
ここで、洗濯物量検知の段階では洗濯物は乾いており、中間脱水１の段階では濡れているので、第２のモータ１６をオフした後のドラム回転数は、図１１に示すように、洗濯物量検知での回転数変化は曲線ａに示すようになり、中間脱水１での回転数変化は曲線ｂに示すようになる。
【００７０】
それぞれ第２のモータ１６をオフした後に、第５の回転数Ｎ５からドラム１が停止するまでの惰性回転時間を測定し、図１１に示すように、洗濯物量検知の段階での惰性回転時間をｔａ、中間脱水１の段階での惰性回転時間をｔｂとする。化繊類は脱水率が高く綿類は脱水率が低いので、綿類の方が脱水後の残水率が高くなり、惰性回転時間も長くなる。すなわち、ｔｂ／ｔａの値が大きいほど綿類が多いと判定する。
【００７１】
このように本実施例によれば、簡単な構成で精度良く布質を判別することが可能となり、しかも洗濯行程の当初に布質を判別できて、化繊が多めの洗濯物である場合に洗濯時間および乾燥時間を大幅に短縮できる。
【００７２】
【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、洗濯物を収納し水平軸を中心に少なくとも洗濯物が持ち上げられた後に水面上に落下する回転数である第１の回転数と洗濯物が遠心脱水される第２の回転数で回転可能なドラムと、前記ドラムを内包しランドリー機器本体に弾性的に支持した水受け槽と、前記ドラムを駆動するモータと、前記ドラムの回転数を検知する回転数検知手段と、洗濯物の布質を判別する布質判別手段と、前記回転数検知手段の検知結果と前記布質判別手段の判別結果を入力し前記モータの回転数を制御して、前記ドラムを第１の回転数で駆動する布ほぐし行程と、前記第１の回転数から洗濯物が前記ドラムの内面に張り付く回転数である第３の回転数に徐々に回転数を上昇させる布バランス行程と、前記布バランス行程の後前記第３の回転数で駆動しその時の前記回転数検知手段により検知した回転数変動幅で洗濯物のアンバランスを判定するアンバランス判定行程とを有し、前記アンバランス判定行程での前記回転数変動幅が所定値より大きいと判定したときに再度前記布ほぐし行程からやり直す制御手段とを備え、前記制御手段は、前記布質判別手段により化繊類が多いと判断された場合には、綿類が多いと判断された場合よりも、前記所定値を高く設定するようにしたから、振動や騒音を悪化させることなく運転時間を短縮でき、消費電力も低減できる。
【００７３】
また、請求項２に記載の発明によれば、洗濯物を収納し水平軸を中心に少なくとも洗濯物が持ち上げられた後に水面上に落下する回転数である第１の回転数と洗濯物が遠心脱水される第２の回転数で回転可能なドラムと、前記ドラムを内包しランドリー機器本体に弾性的に支持した水受け槽と、前記ドラムを駆動するモータと、前記ドラムの回転数を検知する回転数検知手段と、洗濯物の布質を判別する布質判別手段と、前記回転数検知手段の検知結果と前記布質判別手段の判別結果を入力し前記モータの回転数を制御する制御手段を備え、前記制御手段は、前記ドラムを前記第１の回転数で駆動する布ほぐし行程と、前記第１の回転数から洗濯物が前記ドラムの内面に張り付く回転数である第３の回転数に徐々に回転数を上昇させる布バランス行程と、前記布バランス行程の後前記第３の回転数より高く前記第２の回転数より低い第４の回転数で駆動する第１の予備脱水行程と、前記第１の予備脱水行程の後、前記第３の回転数で駆動して洗濯物のアンバランスを判定するアンバランス判定行程とを順次行うようにし、前記布質判別手段により化繊類が多いと判断された場合には、第１の予備脱水行程を行わないようにしたから、振動や騒音を悪化させることなく運転時間を短縮でき、消費電力も低減できる。
【００７４】
また、請求項３に記載の発明によれば、洗濯物を収納し水平軸を中心に少なくとも洗濯物が持ち上げられた後に水面上に落下する回転数である第１の回転数と洗濯物が遠心脱水される第２の回転数で回転可能なドラムと、前記ドラムを内包しランドリー機器本体に弾性的に支持した水受け槽と、前記ドラムを駆動するモータと、前記ドラムの回転数を検知する回転数検知手段と、前記ドラムに熱風を供給する熱風供給手段と、洗濯物の布質を判別する布質判別手段と、前記回転数検知手段の検知結果と前記布質判別手段の判別結果を入力し前記モータ、前記熱風供給手段などの動作を制御して、洗濯物を洗い、すすぎ、脱水する洗濯行程と洗濯物を乾燥する乾燥行程とを制御する制御手段とを備え、前記制御手段は、前記洗濯行程に続いて乾燥行程を行うとき、前記第２の回転数で駆動する洗濯行程の最終脱水の前に、前記ドラムを前記第１の回転数で駆動する布ほぐし行程と、前記第１の回転数から洗濯物が前記ドラムの内面に張り付く回転数である第３の回転数に徐々に回転数を上昇させる布バランス行程と、前記第３の回転数で駆動して洗濯物のアンバランスを判定するアンバランス判定行程と、前記アンバランス判定行程の後前記第３の回転数より高く前記第２の回転数より低い第５の回転数で駆動する第２の予備脱水行程とで構成されたサイクルを複数回行うようにし、前記布質判別手段により化繊類が多いと判断された場合には、綿類が多いと判断された場合よりも、前記サイクルの実行回数を少なくするようにしたから、乾燥性能を低下させることなく、洗濯運転時間を短縮でき、消費電力も低減できる。
【００７５】
また、請求項４に記載の発明によれば、運転コースなどを設定するための入力設定手段を備え、布質判別手段は、前記入力設定手段で設定された内容により洗濯物の布質を判別するようにしたから、たとえば、化繊を洗って乾燥させるための「化繊コース」を入力設定手段として設け、使用者に設定してもらうようにすることにより、洗濯物が化繊であることを確実に判別できる。
【００７６】
また、請求項５に記載の発明によれば、水受け槽内の水位を検知する水位検知手段と、洗濯物の量を検知する洗濯物量検知手段とを備え、布質判別手段は、前記洗濯物量検知手段の検知結果と前記水位検知手段で検知された水位の洗濯中の変動量とにより洗濯物の布質を判別するようにしたから、簡単な構成で精度良く布質を判別することが可能となり、しかも洗濯行程の当初に布質を判別できて、化繊が多めの洗濯物である場合に洗濯時間および乾燥時間を大幅に短縮できる。
【００７７】
また、請求項６に記載の発明によれば、布質判別手段は、給水前の洗濯物が乾いた状態と洗い後の濡れた状態とでの所定の回転数からの惰性回転時間の比により洗濯物の布質を判別するようにしたから、簡単な構成で精度良く布質を判別することが可能となり、しかも洗濯行程の当初に布質を判別できて、化繊が多めの洗濯物である場合に洗濯時間および乾燥時間を大幅に短縮できる。
【図面の簡単な説明】
【図１】 本発明の第１の実施例のランドリー機器の断面図
【図２】 同ランドリー機器の一部切欠した斜視図
【図３】 同ランドリー機器のブロック回路図
【図４】 同ランドリー機器の操作表示部の正面図
【図５】 本発明の第３の実施例のランドリー機器の要部動作タイムチャート
【図６】 本発明の第５の実施例のランドリー機器のシーケンス説明図
【図７】 同ランドリー機器のシーケンスの要部詳細説明図
【図８】 本発明の第７の実施例のランドリー機器の洗濯物量が多いときの特性図
【図９】 同ランドリー機器の洗濯物量が少ないときの特性図
【図１０】 本発明の第８の実施例のランドリー機器のシーケンスの要部説明図
【図１１】 同ランドリー機器の洗濯物量検知時のドラム回転数の特性図
【図１２】 従来のランドリー機器の断面図
【符号の説明】
１ ドラム
３ 水受け槽
４ 水平軸
９ ランドリー機器本体
１５ 第１のモータ（モータ）
１６ 第２のモータ（モータ）
２７ 制御手段
３５ 回転数検知手段
３７ 布質判別手段[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a laundry machine that performs laundry washing or drying, or washing and drying in a rotating drum that is rotatably arranged around a rotating shaft provided in a substantially horizontal direction.
[0002]
[Prior art]
  Conventionally, this type of laundry machine is configured as shown in FIG. Hereinafter, the configuration will be described.
[0003]
  As shown in the drawing, the drum 1 is provided with a large number of water passage holes 2 on the entire outer periphery thereof, and is rotatably disposed in the water receiving tank 3. One end of the horizontal shaft 4 is fixed to the rotation center of the drum 1, and a drum pulley 5 is fixed to the other end of the horizontal shaft 4. The motor 6 is connected to the drum pulley 5 by a belt 7 and rotationally drives the drum 1. A lid 8 is provided at the opening of the drum 1 so as to be freely opened and closed.
[0004]
  The water receiving tank 3 is suspended from the laundry machine main body 9 by the spring body 10, and is supported by vibration isolation so that vibration during dehydration is not transmitted to the laundry machine main body 9 by the vibration isolating damper 11, and vibration during dehydration is reduced. A weight 12 is provided. The heater 13 heats the washing water in the water receiving tub 3. The control device 14 controls operations of the motor 6, the heater 13, and the like, and sequentially controls a series of processes such as washing, rinsing, and dehydration.
[0005]
  The operation in the above configuration will be described. When the lid 8 is opened, the laundry is put into the drum 1 and the operation is started, the drum 1 is rotated at a low speed by the motor 6 in the washing process, and the laundry in the drum 1 is driven. Is lifted and dropped onto the water surface. Thus, the washing process proceeds. In the rinsing process, the same operation as in the washing process is performed. In the dehydration process, the drum 1 is rotationally driven at a high speed, and the laundry is dehydrated by centrifugation. At this time, if the laundry in the drum 1 is shifted, that is, unbalanced, the drum 1 and the water receiving tub 3 vibrate, but the vibration is damped by the vibration isolating damper 11 and transmitted to the laundry machine body 9. There is nothing.
[0006]
[Problems to be solved by the invention]
  In such a conventional configuration,Before the drum 1 is driven to rotate at a high speed in the dewatering process, a cloth unraveling process for unraveling the laundry in the drum 1 is performed, and then an unbalance determination process for determining the unbalance of the laundry in the drum 1 is performed. If it is determined that the balance is unbalanced in the unbalance determination process, it will be repeated from the cloth unraveling process, resulting in longer operation time and higher power consumption.Had the problem.
[0007]
  The present invention solves the above-described conventional problems, and determines the quality of the laundry in the drum and is suitable for the quality of the laundry.Judgment of unbalanceTo doReduces operating time and power consumption without exacerbating vibration and noiseTo doEyesIt has been the target.
[0008]
[Means for Solving the Problems]
  In order to achieve the first object of the present invention, a drum is contained in a water receiving tub elastically supported by a laundry machine body, the laundry is stored in the drum, and at least by a motor around a horizontal axis. It is possible to rotate at the first rotation speed and the second rotation speed, and the detection result of the rotation speed detection means for detecting the rotation speed of the drum and the determination result of the cloth quality determination means for determining the cloth quality of the laundry are used as the control means. Input and control the motor speedAnd a cloth unwinding step for driving the drum at the first rotational speed, and a cloth for gradually increasing the rotational speed from the first rotational speed to a third rotational speed that is a rotational speed at which the laundry sticks to the inner surface of the drum. A balance process, and an unbalance determination process for determining the unbalance of the laundry by the rotation speed fluctuation range detected by the rotation speed detection means at the time after the cloth balance process and driven by the third rotation speed. When it is determined that the rotation speed fluctuation range in the balance determination process is larger than the predetermined value, the cloth unwinding process is performed again.To do. Control means is cloth quality discrimination meansWhen it is determined that there are many synthetic fibers, the predetermined value is set higher than when it is determined that there are many cottons.It is what I did.
[0009]
  ThisWhen there are many synthetic fibers, the moisture content before dehydration is lower and the amount of dehydration during dehydration is lower than when there are many cottons, so the unbalanced state of the laundry from the unbalance determination process to the dehydration process changes. It is difficult to perform unbalance determination accurately, and vibration and noise will not increase even if the predetermined value in the unbalance determination process is set high, so the predetermined value in the unbalance determination process when there are many synthetic fibers By increasing the height so as not to start over from the cloth unwinding process, the operation time can be shortened and the power consumption can be reduced without deteriorating vibration and noise.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
  The present inventionSubcontractClaim1The invention according to claim 1 stores laundry and at least about a horizontal axis.The number of revolutions that drop on the water after the laundry is liftedThe first rotational speed andLaundry is centrifugally dehydratedA drum that can rotate at a second rotational speed, a water receiving tank that contains the drum and is elastically supported by a laundry machine body, a motor that drives the drum, and a rotational speed detection that detects the rotational speed of the drum Means, cloth quality discrimination means for discriminating the quality of the laundry, input the detection result of the rotation speed detection means and the determination result of the cloth quality discrimination means, and control the rotation speed of the motor,SaidA cloth unraveling step for driving the drum at a first rotational speed;SaidFrom the first speedThe number of rotations at which the laundry is stuck to the inner surface of the drumA cloth balancing step of gradually increasing the rotation speed to the third rotation speed;SaidAfter the cloth balancing processSaidDriven at the third speedAt the rotational speed fluctuation range detected by the rotational speed detection means at that timeAn unbalance determination process for determining the unbalance of the laundry,SaidIn the unbalance determination processRotational speed fluctuation rangeIs determined to be greater than the predetermined valueAgain saidCloth loosening processStart overControl means, and the control means includes the cloth quality determining hand.In stepsThanWhen it is determined that there are many synthetic fibers, the aforementionedPredetermined valueSet higherIt is what,When there is a lot of fiber, the moisture content before dehydration is lower and the amount of dehydration during dehydration is less than when there is a lot of cotton, so the unbalanced state of the laundry from the imbalance determination process to the dehydration process changes. Difficult to perform unbalance determination accurately,And even if the predetermined value in the unbalance determination process is set high, vibration and noise do not increase. According to the present invention, when the amount of synthetic fiber is large, the predetermined value in the unbalance determination process is increased so as not to start over from the cloth unraveling process, thereby shortening the operation time without deteriorating vibration and noise. And power consumption can be reduced.
[0011]
  Claim2The invention according to claim 1 stores laundry and at least about a horizontal axis.The number of revolutions that drop on the water after the laundry is liftedThe first rotational speed andLaundry is centrifugally dehydratedA drum that can rotate at a second rotational speed, a water receiving tank that contains the drum and is elastically supported by a laundry machine body, a motor that drives the drum, and a rotational speed detection that detects the rotational speed of the drum Means for determining the cloth quality of the laundry, the detection result of the rotation speed detection means and the determination result of the cloth quality determination means are input to control the rotation speed of the motor.SystemControl means, the control means,The cloth unwinding process for driving the drum at the first rotation speed, and the rotation speed is gradually increased from the first rotation speed to a third rotation speed that is a rotation speed at which the laundry sticks to the inner surface of the drum. A cloth balance stroke, and after the cloth balance stroke, the third rotation speed is higher than the third rotation speed. A first preliminary dehydration process driven at a fourth rotational speed lower than a rotational speed of 2, and after the first preliminary dehydration process, driving at the third rotational speed to determine laundry imbalance The unbalance determination process is performed sequentially,The cloth quality judgment handIn stepsThanIf it is judged that there are many synthetic fibers,First preliminary dehydration processDo notIt is whatThe secondThe purpose of the preliminary dehydration process 1 is to firmly attach the laundry to the drum in order to improve the determination accuracy in the next imbalance determination process, but when there are a lot of synthetic fibers and a lot of cotton Compared to the above, since the moisture content before dehydration is low and the amount of dehydration during dehydration is small, the unbalanced state of the laundry from the imbalance determination process to the dehydration process is unlikely to change, and even without the first preliminary dehydration process Unbalance determination can be performed with high accuracy. According to the present invention, by not performing the first preliminary dehydration process when there are a lot of synthetic fibers, the operation time can be shortened and the power consumption can be reduced without deteriorating vibration and noise.
[0012]
  Claim3The invention according to claim 1 stores laundry and at least about a horizontal axis.The number of revolutions that drop on the water after the laundry is liftedThe first rotational speed andLaundry is centrifugally dehydratedA drum that can rotate at a second rotational speed, a water receiving tank that contains the drum and is elastically supported by a laundry machine body, a motor that drives the drum, and a rotational speed detection that detects the rotational speed of the drum Means, hot air supplying means for supplying hot air to the drum, cloth quality determining means for determining the cloth quality of the laundry, detection results of the rotation speed detecting means and determination results of the cloth quality determining means A control means for controlling the operation of the motor, the hot air supply means, etc. to control the washing process for washing, rinsing and dehydrating the laundry and the drying process for drying the laundry;SaidWhen performing the drying process following the washing process,SaidBefore the final dehydration of the washing process driven at the second rotational speed,The cloth unwinding process for driving the drum at the first rotation speed, and the rotation speed is gradually increased from the first rotation speed to a third rotation speed that is a rotation speed at which the laundry sticks to the inner surface of the drum. A cloth balancing step, an unbalance determining step of driving at the third rotational speed to determine the unbalance of the laundry, and the second rotational speed higher than the third rotational speed after the unbalance determining step A cycle composed of a second pre-dehydration stroke driven at a lower fifth rpmThe cloth quality judgmentIn stepsThanWhen it is determined that there are many synthetic fibers, the cycle is executed more than when it is determined that there are many cottons.TimesReduceIt is what, WashingIn the case of drying operation following rinsing, when the final dehydration in the washing process is suddenly dehydrated at the second rotation speed, a strong centrifugal force is applied to the laundry and sticks firmly in the drum, which becomes the drying process. Can not dry offSoIn order to solve this problem, the second preliminary dehydration is performed a plurality of times. However, when there are a lot of synthetic fibers, the water content before dehydration is low, so the centrifugal force acting on the laundry is weak, and it is not contained in the drum. There is no firm sticking, and the number of second preliminary dehydrations can be reduced. According to the present invention, when the amount of synthetic fibers is large, the number of times of the second preliminary dehydration is reduced, so that the washing operation time can be shortened and the power consumption can be reduced without reducing the drying performance..
[0013]
Claim4The invention described in claim 1 above3In the invention described in the above, it is provided with an input setting means for setting a driving course and the like, and the cloth quality determination means is configured to determine the cloth quality of the laundry based on the contents set by the input setting means. By providing a “synthetic fiber course” as an input setting means for washing and drying the synthetic fiber and having the user set it, it can be reliably determined that the laundry is synthetic fiber.
[0014]
  Claim5The invention described in claim 1 above3In the invention described in the above, the water level detection means for detecting the water level in the water receiving tub and the laundry amount detection means for detecting the amount of laundry, the cloth quality determination means, the detection result of the laundry amount detection means, The cloth quality of the laundry is discriminated based on the fluctuation amount of the water level detected by the water level detecting means during washing, and the cloth quality can be discriminated with a simple configuration with high accuracy. The fabric quality can be discriminated at the beginning of the process, and the washing time and drying time can be greatly shortened when the laundry has a lot of fiber.
[0015]
  Claim6The invention described in claim 1 above3In the invention described in the above, the cloth quality discrimination means isBefore water supplyThe laundry is dry andAfter washingIn a wet statePredeterminedThe cloth quality of the laundry is determined by the ratio of the inertia rotation time to the number of rotations of the cloth, making it possible to accurately determine the cloth quality with a simple configuration and at the beginning of the washing process. The washing time and drying time can be greatly shortened when the laundry has a large amount of synthetic fiber.
[0016]
【Example】
  Embodiments of the present invention will be described below with reference to the drawings. In addition, the thing of the same structure as a prior art example attaches | subjects the same code | symbol, and abbreviate | omits description.
[0017]
  Example 1
  As shown in FIGS. 1 and 2, the first motor (motor) 15 rotates the drum 1 at a first rotation speed N1 (for example, 53 r / min) to perform washing or rinsing. The second motor (motor) 16 dehydrates the drum 1 by rotating it at a second rotation speed N2 (for example, 1000 r / min). The first motor 15 and the second motor 16 are induction motors and are connected to a driven pulley 19 via belts 17 and 18, respectively.
[0018]
  The driven pulley 19 has two types of reduction ratios. The first motor 15 is connected to a driven pulley 19a having a large reduction ratio via a belt 17, and the second motor 16 is reduced via a belt 18. It is connected to a driven pulley 19b having a small ratio, and is fixed to the other end of the horizontal shaft 4 with one end fixed to the rotation center of the drum 1.
[0019]
  The blower fan 20 constitutes the warm air supply means 22 together with the drying heater 21, and is driven by a fan motor 23. One end of the blower fan 20 communicates with the drum 1 through the heat exchanger 24, and the other end passes through the blower duct 25. Communicating with
[0020]
  The control device 26 controls the first motor 15, the second motor 16, and the like, and is configured as shown in FIG. The control means 27 is constituted by a microcomputer, and via a switching means 28 constituted by a bidirectional thyristor or the like, the washing heater 13, the first motor 15, the second motor 16, the drying heater 21, and a fan motor. 23, the water supply valve 29, the drain pump 30 and the like are controlled, and a series of steps of washing, rinsing, dehydration and drying are sequentially controlled. The washing heater 13 heats the washing water in the water receiving tank 3, the water supply valve 29 supplies water into the water receiving tank 3 for washing and also supplies water to the heat exchanger 24 during drying, and the drain pump 30 supplies water. The washing water in the receiving tub 3 is drained.
[0021]
  The input setting means 31 is used to input a setting course necessary for the user, an operation start, and the like, and is input to the control means 27. The display means 32 displays the setting contents, operation state, etc. by the input setting means 31. The water level detecting means 33 detects the water level in the water receiving tank 3, and the water temperature detecting means 34 detects the water temperature in the water receiving tank 3 and inputs it to the control means 27. The rotation speed detection means 35 detects the rotation speed of the first motor 15 to detect the rotation speed of the drum 1 and inputs it to the control means 27.
[0022]
  The laundry amount detection means 36 inputs the rotation number of the drum 1 detected by the rotation number detection means 35 to detect the laundry amount in the drum 1 and inputs it to the control means 27. The cloth quality determination means 37 inputs data from the input setting means 31, the water level detection means 33, and the rotation speed detection means 35 to determine the cloth quality, and inputs the determination result to the control means 27. The storage means 38 stores data necessary for a series of controls. In addition, 39 is a power switch and 40 is a commercial power source.
[0023]
  As shown in FIG. 4, the input setting means 31 includes a washing / drying setting switch 31a for setting “running washing process and drying process”, “running washing process”, and “running drying process”, and a washing process. Course setting switch 31b for setting “standard course”, “speedy course”, “blanket course”, “synthetic fiber course”, etc. with different washing times, rinsing times, and dehydration time, and start / pause operation The start / pause switch 31c, and the washing switch 31d, the rinsing switch 31e, the dehydrating switch 31f, and the drying switch 31g for individually setting the washing time, the number of times of rinsing, the dehydrating time, and the drying time are configured.
[0024]
  The display means 32 includes a process display lamp 32a for displaying the process and operation state set by the washing / drying setting switch 31a, a course display lamp 32b for displaying the course set by the course setting switch 31b, a washing switch 31d, Washing time display lamp 32c, rinse number display lamp 32d, dehydration time display lamp 32e for displaying washing time, number of rinses, dehydration time, and drying time individually set by rinse switch 31e, dehydration switch 31f, and drying switch 31g, drying The time display lamp 32f and the remaining time display lamp 32g for displaying the remaining time until the end of the operation are configured.
[0025]
  To explain the operation in the above configuration, the lid 8 is opened, the laundry is put into the drum 1, the power switch 39 is turned on, and the "washing process" is operated by the washing / drying setting switch 31a of the input setting means 31. If the “standard course” or “synthetic course” is set by the course setting switch 31b according to the type of laundry, and the operation is started by operating the start / pause switch 31c, the water supply valve 29 is It operates to supply water into the water receiving tank 3, and when a predetermined water level is detected by the water level detection means 33, the water supply is stopped and the first motor 15 is driven. During washing, since the laundry contains water, the drum 1 is reversed left and right by the first motor 15 at a rotation speed N1 every predetermined time period (for example, 20 seconds on 3 seconds off). The laundry is lifted and dropped onto the water surface for washing.
[0026]
  At this time, the cloth quality discrimination means 37 discriminates the cloth quality according to the course set by the course setting switch 31b. If it is “standard course”, the cloth quality is discriminated as normal clothing, and if it is “synthetic fiber course”, it is determined that there is a large amount of synthetic fiber. ing. The rotation speed N1 of the drum 1 is changed according to the course as shown in (Table 1).
[0027]
[Table 1]

[0028]
  Thus, according to the present embodiment, if it is a “standard course” for washing ordinary clothes, it is washed at 53 r / min, and if it is a “synthetic course” for washing synthetic fibers, it is washed at 45 r / min. Regardless of the quality of the laundry,After being lifted, it is dropped onto the surface of the water so that it can be beaten and a predetermined cleaning effect is obtained.
[0029]
  In the present embodiment, the first motor 15 and the second motor 16 are constituted by two induction motors, but may be one such as a commutator motor.
[0030]
  (Example 2)
  When the control unit 27 in FIG. 3 operates the start / pause switch 31c to start operation, the water supply valve 29 is operated to supply water into the water receiving tank 3, and a predetermined water level (for example, When the water level in the drum is detected (50 mm), the water supply is stopped, and the first motor 15 is driven to start washing. Since water is contained in the laundry at the time of washing, as shown in (Table 2), the first motor 15 is driven while supplying water up to the water level determined for each course.
[0031]
[Table 2]

[0032]
  Thus, according to this example, if it is a “standard course” for washing ordinary clothing, a “synthetic course” for washing synthetic fibers so that the water level in the drum is 50 mm, Since washing is performed while replenishing water so that the water level in the drum becomes 150 mm, even if the laundry is a synthetic fiber, it can be washed while the laundry is submerged without sticking into the drum 1, and a predetermined cleaning effect can be obtained. .
[0033]
  (Example 3)
  The control means 27 in FIG. 3 includes a cloth unraveling stroke for driving the drum 1 at the first rotation speed N1, as shown in FIG. 5, before the dehydration stroke for driving the drum 1 at the second rotation speed N2. A cloth balance stroke that gradually increases the rotation speed from the first rotation speed N1 to a third rotation speed N3 (for example, 100 r / min), and a fourth rotation speed N4 that can be dehydrated after the cloth balance process (for example, , 200 r / min), and after the first preliminary dehydration process, the dehydration is performed through the third rotation speed N3 to detect and determine the laundry imbalance. I am trying to enter the process.
[0034]
  The rotation direction of the drum 1 in the cloth unwinding process is opposite to the rotation direction after the cloth balancing process, and the third rotation speed N3 is the rotation speed at which the laundry sticks to the inner wall of the drum 1, and the first preliminary dehydration process The fourth rotational speed N4 is lower than the rotational speed corresponding to the vibration resonance point of the water receiving tank 3 or the like, and the fourth rotational speed N4 is driven by the second motor 16.
[0035]
  In the unbalance determination process, first, the rotational speed of the first motor 15 is detected by the rotational speed detection means 35, and the first motor 15 is controlled to the third rotational speed N3 based on the detection result. The conduction angle of the switching means 28 is fixed and the first motor 15 is driven. The state of the laundry in the drum 1 is determined based on the rotational speed fluctuation range of the first motor 15 when driven by this fixed conduction angle, and when the rotational speed fluctuation width is smaller than a predetermined value, the process proceeds to the dehydration process. When the fluctuation range is large, it is determined that the laundry in the drum 1 is in an unbalanced state, and the drum 1 is once stopped and then restarted from the cloth unwinding process.
[0036]
  In the series of operations from the cloth unraveling process to the dewatering process, as shown in (Table 3), the three items of the dewatering time, the rotational speed fluctuation range determined as imbalance, and the presence / absence of the first preliminary dewatering are shown for each course. I am trying to change it.
[0037]
[Table 3]

[0038]
  Thus, according to the present embodiment, the dehydration time is 5 minutes for the “standard course” for washing ordinary clothing, and the dehydration time is 1 minute for the “synthetic fiber course” for washing synthetic fibers. When the laundry is a synthetic fiber, the dehydration operation time can be shortened while maintaining a predetermined dewatering performance, and the washing time can be shortened and the power consumption can be reduced.
[0039]
  Also, the laundry can be made into a synthetic fiber by setting the rotational speed fluctuation range to be determined as unbalanced in the unbalance determination process to 5 r / min for the “standard course” and 10 r / min for the “synthetic fiber course”. In this case, the operation time can be shortened and the power consumption can be reduced without deteriorating vibration and noise.
[0040]
  Also, even if the first preliminary dehydration process is “standard course” and is not “synthetic fiber course”, when the laundry is synthetic fiber, the operation time without deteriorating vibration and noise. And power consumption can be reduced.
[0041]
  Example 4
  The control means 27 in FIG. 3 changes the dewatering rotation speed N2 for each course as shown in (Table 4) in the dewatering stroke in which the drum 1 is driven at the second rotation speed N2.
[0042]
[Table 4]

[0043]
  Thus, according to the present embodiment, the dehydration speed is 1000 r / min for the “standard course” for washing ordinary clothing, and the dehydration speed for the “synthetic fiber course” for washing synthetic fibers. Since it is 600 r / min, the drum rotation speed during dehydration can be lowered while maintaining a predetermined dewatering performance, and vibration and noise can be reduced even if the laundry in the drum is unbalanced.
[0044]
  (Example 5)
  As shown in FIG. 6, the control means 27 in FIG. 3 can execute a drying process following the washing process. After the washing process, intermediate dehydration, water supply, and rinsing are performed as one cycle, and rinsing is performed for three cycles. After the second preliminary dehydration, the final dehydration is performed and the drying process is performed.
[0045]
  Here, as shown in FIG. 7, the second preliminary dehydration is performed for three cycles, with the cloth unwinding process, the cloth balance process, the unbalance determination process, and the preliminary dehydration process as one cycle. The number of rotations of the drum 1 is set to N5 (for example, 400 r / min) for the first time, N6 (for example, 500 r / min) for the second time, and N7 (for example, 600 r / min) for the third time. The laundry is peeled from the inner wall of the drum 1 every time it is dehydrated, the moisture content of the laundry can be gradually reduced, and the laundry can be easily peeled off at the end of the final dehydration. Can be dried softly without wrinkles without sticking to the inner wall of the drum 1.
[0046]
  In addition, when it is determined that the laundry is unbalanced in the unbalance determination process in each cycle, return to the cloth unwinding process of that cycle to ensure preliminary dehydration. Yes.
[0047]
  Further, the cloth quality discrimination means 37 in FIG. 3 discriminates the quality of the laundry into three stages of cotton, normal and synthetic fiber, and the control means 27 determines (Table 5) according to the cloth quality discrimination result. The second preliminary dehydration is performed in the pattern shown.
[0048]
[Table 5]

[0049]
  As described above, according to this embodiment, when there are many cottons, the laundry is peeled off from the inner wall of the drum 1 by performing the second preliminary dehydration of the drum 1 at N5, N6, and N7 three times. At the same time, the moisture content of the laundry can be gradually reduced, the laundry can be easily peeled off at the end of the final dehydration, and the laundry does not stick to the inner wall of the drum 1 in the drying process. Can be dried.
[0050]
  Conversely, when there are many synthetic fibers, the moisture content before dehydration is low, so even if the second preliminary dehydration is performed once, the laundry can be easily peeled off at the end of final dehydration, and the washing operation time can be shortened. Power consumption can also be reduced.
[0051]
  (Example 6)
  The cloth quality discrimination means 37 in FIG. 3 discriminates the quality of the laundry into three stages of cotton, normal, and fiber, and the laundry amount detection means 36 in FIG. When the object is dry, the output of the rotation speed detection means 35 is input, and the drum 1 is driven by the second motor 16 at a rotation speed (for example, 600 r / min) at which the laundry sticks to the inner wall of the drum 1. After the second motor 16 is shut off, the amount of laundry in the drum 1 is detected by a change in the inertial rotation speed of the drum 1 (for example, a change in the rotation speed after 6 seconds from 500 r / min).
[0052]
  At this time, since the change in the inertial rotational speed of the drum 1 changes depending on the tension of the belts 17 and 18, the ambient temperature, etc., the change in the rotational speed at the rising of the drum 1 when driven by the second motor 16 (for example, (Change in the number of revolutions after 200 seconds from 200 r / min). That is, when the tension of the belts 17 and 18 is high, the change in the inertial rotational speed of the drum 1 after the second motor 16 is shut off is large, and the change in the rising rotational speed is small. Further, when the ambient temperature is low, the change in the inertial rotational speed of the drum 1 after the second motor 16 is shut off is large, and the change in the starting rotational speed is small. Therefore, the influence of the tension of the belts 17 and 18 and the influence of the ambient temperature can be corrected by examining both the change in the rising rotation speed and the change in the inertia rotation speed.
[0053]
  Further, since the change in the rotational speed at the rising of the drum 1 when driven by the second motor 16 changes depending on the voltage of the commercial power source 40, voltage detecting means (not shown) for detecting the voltage of the commercial power source 40 is used. Correction is made by output. That is, when the voltage of the commercial power source 40 is high, the change in the rotational speed of the rising becomes large. Therefore, it can correct | amend by the output of a voltage detection means.
[0054]
  The control means 27 inputs the detection result of the laundry amount detection means 36 and the determination result of the cloth quality determination means 37, and controls the drying process. In other words, the drying heater 21 is turned on and off to control the supply capacity of the hot air supply means 22, and as shown in (Table 6), the drying heater 21 is always turned on according to the cloth quality discrimination result. The case is divided into the case of intermittent operation of 30 seconds on and 30 seconds off.
[0055]
[Table 6]

[0056]
  The drying time is as shown in (Table 7) based on the laundry amount detection result and the cloth quality discrimination result.
[0057]
[Table 7]

[0058]
  Thus, according to the present embodiment, when it is determined that there are a lot of synthetic fibers, the hot air temperature can be lowered by setting the drying heater 21 to 30 seconds on and 30 seconds off intermittent operation, Drying is easy on clothes and power consumption can be reduced.
[0059]
  Further, a basic drying time is determined based on the amount of cloth detected by the laundry amount detecting means 36, and if the cloth quality determining means determines that there is a lot of synthetic fiber, the basic drying time is shortened. Thus, power consumption can be reduced.
[0060]
  In this embodiment, as a method of changing the supply capacity of the hot air supply means, the drying heater 21 is turned on and off. However, this controls the number of turning on the drying heater 21 by dividing it into a plurality. Alternatively, the rotational speed of the fan motor 23 may be controlled.
[0061]
  (Example 7)
  3 inputs the cloth amount detected by the laundry amount detection means 36 and the water level in the drum 1 detected by the water level detection means 33. The cloth quality of the laundry is increased by increasing the cotton quality. It is determined that the number is large. When the control means 27 operates the start / temporary stop switch 31c to start operation, the water supply valve 29 is operated to supply water into the water receiving tank 3, and as shown in FIG. When the water level (for example, hi) is detected, the water supply is stopped, and the first motor 15 is driven to perform the reverse rotation in the time period of, for example, 20 seconds on and 3 seconds off, and washing.
[0062]
  At this time, since the laundry gradually absorbs water, the water level falls, but the amount of decrease in the water level varies depending on the quantity and quality of the laundry. Further, at the time of starting and stopping the rotation, negative pressure is applied or water absorbed in the laundry is dripped, which slightly fluctuates. Accordingly, the quality of the laundry is discriminated based on the water level in the drum 1 after the forward reversal is performed once, depending on whether the amount of laundry is large or small.
[0063]
  FIG. 8 shows a decrease in the water level at the start of washing when the amount of laundry is large. The water level in the drum 1 at time t13 is ha when the fiber is large as shown by curve a, and the cotton is high as shown by curve b. In this case, hb, and ha> hb. Therefore, if a threshold value is set in the middle between the water level ha and the water level hb, it is possible to determine whether there is more synthetic fiber or more cotton.
[0064]
  Further, FIG. 9 shows a case where the amount of laundry is small, curve c is for a case of a large amount of synthetic fiber, and curve d is a case of a large amount of cotton. As in the case where the amount of laundry is large, if a threshold value is set between hc and hd, it is possible to determine whether there is more synthetic fiber or more cotton.
[0065]
  As described above, according to the present embodiment, it is possible to accurately determine the cloth quality with a simple configuration, and further, it is possible to determine the cloth quality at the beginning of the washing process, and in the case where the laundry has a large amount of synthetic fiber. Time and drying time can be greatly reduced.
[0066]
  In this embodiment, the cloth quality of the laundry is discriminated based on the water level in the drum 1 after the forward reversal is performed once. However, the initial water level in the drum 1 is set higher than hi. Thus, the fabric quality may be discriminated after performing forward rotation inversion a plurality of times.
[0067]
  (Example 8)
  3 receives the rotation speed of the drum 1 detected by the rotation speed detection means 35, and a fifth rotation speed N5 (for example, 500 r / in) when the laundry is in a dry state and a wet state. The ratio of the inertia rotation time from (min) is determined so that the quality of the laundry is higher than cotton and higher than fiber.
[0068]
  As shown in FIG. 10, when the control means 27 operates the start / temporary stop switch 31c to start the operation, the rotation speed (for example, the laundry 1 sticks to the inner wall of the drum 1 with the second motor 16). The amount of laundry to be driven at 600 r / min) is detected. Subsequently, after supplying water, washing, and draining, intermediate dehydration 1 is performed at a rotational speed of the drum 1 of 1000 r / min, for example.
[0069]
  Here, since the laundry is dry at the stage of detecting the amount of laundry and wet at the stage of intermediate dehydration 1, the drum rotation speed after the second motor 16 is turned off is as shown in FIG. The change in the rotation speed when detecting the quantity is as shown by the curve a, and the change in the rotation speed during the intermediate dehydration 1 is as shown by the curve b.
[0070]
  After each second motor 16 is turned off, the inertial rotation time from the fifth rotational speed N5 to the stop of the drum 1 is measured. As shown in FIG. 11, the inertial rotation time at the laundry amount detection stage is measured. Let ta, the inertial rotation time at the stage of the intermediate dehydration 1 be tb. Since synthetic fibers have a high dehydration rate and cottons have a low dehydration rate, cotton has a higher residual water rate after dehydration and a longer dwarf rotation time. That is, it is determined that the larger the value of tb / ta, the more cotton.
[0071]
  As described above, according to the present embodiment, it is possible to accurately determine the cloth quality with a simple configuration, and further, it is possible to determine the cloth quality at the beginning of the washing process, and in the case where the fabric is a large amount of laundry. Time and drying time can be greatly reduced.
[0072]
【The invention's effect】
  As described above, according to the first aspect of the present invention,, WashingAt least about the horizontal axisThe number of revolutions that drop on the water after the laundry is liftedThe first rotational speed andLaundry is centrifugally dehydratedA drum that can rotate at a second rotational speed, a water receiving tank that contains the drum and is elastically supported by a laundry machine body, a motor that drives the drum, and a rotational speed detection that detects the rotational speed of the drum Means, cloth quality discrimination means for discriminating the quality of the laundry, input the detection result of the rotation speed detection means and the determination result of the cloth quality discrimination means, and control the rotation speed of the motor,SaidA cloth unraveling step for driving the drum at a first rotational speed;SaidFrom the first speedThe number of rotations at which the laundry is stuck to the inner surface of the drumA cloth balancing step of gradually increasing the rotation speed to the third rotation speed;SaidAfter the cloth balancing processSaidDriven at the third speedAt the rotational speed fluctuation range detected by the rotational speed detection means at that timeAn unbalance determination process for determining the unbalance of the laundry,SaidIn the unbalance determination processRotational speed fluctuation rangeIs determined to be greater than the predetermined valueAgain saidCloth loosening processStart overControl means, and the control means includes the cloth quality determining hand.In stepsThanWhen it is determined that there are many synthetic fibers, the aforementionedPredetermined valueSet higherBecause I did, ShakeOperation time can be shortened and power consumption can be reduced without deteriorating movement and noise.
[0073]
  Claims2According to the invention described in the above, the laundry is stored and at least about the horizontal axis.The number of revolutions that drop on the water after the laundry is liftedThe first rotational speed andLaundry is centrifugally dehydratedA drum that can rotate at a second rotational speed, a water receiving tank that contains the drum and is elastically supported by a laundry machine body, a motor that drives the drum, and a rotational speed detection that detects the rotational speed of the drum Means for determining the cloth quality of the laundry, the detection result of the rotation speed detection means and the determination result of the cloth quality determination means are input to control the rotation speed of the motor.SystemControl means, the control means,The cloth unwinding process for driving the drum at the first rotation speed, and the rotation speed is gradually increased from the first rotation speed to a third rotation speed that is a rotation speed at which the laundry sticks to the inner surface of the drum. A first pre-dehydration step for driving at a fourth rotation speed higher than the third rotation speed and lower than the second rotation speed after the cloth balance process; and the first pre-dehydration process. After that, an unbalance determination step of determining the unbalance of the laundry by driving at the third rotation speed is sequentially performed.The cloth quality judgment handIn stepsThanIf it is judged that there are many synthetic fibers,First preliminary dehydration processDo notBecause I did, ShakeOperation time can be shortened and power consumption can be reduced without deteriorating movement and noise.
[0074]
  Claims3According to the invention described in the above, the laundry is stored and at least about the horizontal axis.The number of revolutions that drop on the water after the laundry is liftedThe first rotational speed andLaundry is centrifugally dehydratedA drum that can rotate at a second rotational speed, a water receiving tank that contains the drum and is elastically supported by a laundry machine body, a motor that drives the drum, and a rotational speed detection that detects the rotational speed of the drum Means, hot air supplying means for supplying hot air to the drum, cloth quality determining means for determining the cloth quality of the laundry, detection results of the rotation speed detecting means and determination results of the cloth quality determining means A control means for controlling the operation of the motor, the hot air supply means, etc. to control the washing process for washing, rinsing and dehydrating the laundry and the drying process for drying the laundry;SaidWhen performing the drying process following the washing process,SaidBefore the final dehydration of the washing process driven at the second rotational speed,The cloth unwinding process for driving the drum at the first rotation speed, and the rotation speed is gradually increased from the first rotation speed to a third rotation speed that is a rotation speed at which the laundry sticks to the inner surface of the drum. A cloth balancing step, an unbalance determining step of driving at the third rotational speed to determine the unbalance of the laundry, and the second rotational speed higher than the third rotational speed after the unbalance determining step A cycle composed of a second pre-dehydration stroke driven at a lower fifth rpmThe cloth quality judgmentIn stepsThanWhen it is determined that there are many synthetic fibers, the cycle is executed more than when it is determined that there are many cottons.TimesReduceBecause I didDryWithout reducing the drying performance, washing operation time can be shortened and power consumption can be reduced..
[0075]
Claims4According to the invention described in the above, it is provided with input setting means for setting a driving course and the like, and the cloth quality determination means determines the cloth quality of the laundry based on the contents set by the input setting means. For example, by providing a “synthetic fiber course” for washing and drying the synthetic fiber as input setting means and having the user set it, it is possible to reliably determine that the laundry is synthetic fiber.
[0076]
  Claims5According to the invention, the water level detecting means for detecting the water level in the water receiving tub and the laundry amount detecting means for detecting the amount of laundry are provided, and the cloth quality determining means is detected by the laundry amount detecting means. Since the cloth quality of the laundry is discriminated based on the result and the fluctuation amount of the water level detected by the water level detecting means during the washing, it becomes possible to accurately discriminate the cloth quality with a simple configuration and the washing. The cloth quality can be discriminated at the beginning of the process, and the washing time and drying time can be greatly shortened when the laundry has a lot of fiber.
[0077]
  Claims6According to the invention described in the above, the cloth quality discrimination meansBefore water supplyThe laundry is dry andAfter washingIn a wet statePredeterminedSince the cloth quality of the laundry is determined by the ratio of the inertia rotation time to the rotation speed of the machine, it is possible to accurately determine the cloth quality with a simple configuration, and the cloth quality is determined at the beginning of the washing process. In addition, the washing time and drying time can be greatly shortened when the laundry has a large amount of fiber.
[Brief description of the drawings]
FIG. 1 is a sectional view of a laundry machine according to a first embodiment of the present invention.
FIG. 2 is a partially cutaway perspective view of the laundry machine.
[Figure 3] Block circuit diagram of the laundry machine
FIG. 4 is a front view of the operation display section of the laundry machine.
FIG. 5 is an operation time chart of main parts of a laundry machine according to a third embodiment of the present invention.
FIG. 6 is a sequence explanatory diagram of a laundry machine according to a fifth embodiment of the present invention.
FIG. 7 is a detailed explanatory diagram of the main part of the sequence of the laundry machine.
FIG. 8 is a characteristic diagram of the laundry machine according to the seventh embodiment of the present invention when the amount of laundry is large.
[Figure 9] Characteristic diagram when the laundry machine has a small amount of laundry
FIG. 10 is an explanatory diagram of a main part of a sequence of a laundry machine according to an eighth embodiment of the present invention.
FIG. 11 is a characteristic diagram of drum rotation speed when the laundry amount of the laundry machine is detected.
FIG. 12 is a sectional view of a conventional laundry machine
[Explanation of symbols]
  1 drum
  3 Water receiving tank
  4 Horizontal axis
  9 Laundry equipment
  15 First motor (motor)
  16 Second motor (motor)
  27 Control means
  35 Rotational speed detection means
  37 Cloth quality discrimination means

Claims (6)

A drum which stores laundry and which can rotate at a first rotational speed at which the laundry is dropped onto the water surface at least after the laundry is lifted around a horizontal axis and a second rotational speed at which the laundry is centrifugally dehydrated A water receiving tub enclosing the drum and elastically supported by a laundry machine body, a motor for driving the drum, a rotation speed detecting means for detecting the rotation speed of the drum, and the quality of the laundry to cloth sediment determination means, the detection result of the rotation speed detecting means and type the question of the fabric quality discrimination means controls the rotational speed of said motor, fabric disentangling drives the drum at a first rotation speed stroke and, cloth balance stroke laundry from the first speed to increase gradually the rotational speed to a third rotation speed is a rotation speed which sticks to the inner surface of the drum, the third after the laundry balance stroke said driven at a rotational speed at that time And a unbalance determination step determines an imbalance of laundry in the rotational speed fluctuation width detected by the rotation speed detection means, when the engine speed fluctuation width at the unbalance determination process is determined to be greater than the predetermined value and control means to start over again the detangling stroke, wherein when it is determined that more synthetic fiber such often the cloth sediment determination hand stage, than when it is determined that the cotton such many , laundry machine which is adapted to set higher the predetermined value. A drum which stores laundry and which can rotate at a first rotational speed at which the laundry is dropped onto the water surface at least after the laundry is lifted around a horizontal axis and a second rotational speed at which the laundry is centrifugally dehydrated A water receiving tub enclosing the drum and elastically supported by a laundry machine body, a motor for driving the drum, a rotation speed detecting means for detecting the rotation speed of the drum, and the quality of the laundry cloth sediment determination means for, with the detection results input to that control means to control the rotational speed of the motor the discrimination results of the fabric quality discrimination means of the rotational speed detection means, said control means, said drum A cloth unwinding process driven at the first rotational speed, and a cloth balancing process for gradually increasing the rotational speed from the first rotational speed to a third rotational speed that is a rotational speed at which the laundry sticks to the inner surface of the drum. And before the cloth balancing process A first preliminary dehydration stroke that is driven at a fourth rotational speed that is higher than the third rotational speed and lower than the second rotational speed; and after the first preliminary dehydration stroke, is driven at the third rotational speed. the unbalance determination step determines the unbalance of the laundry to sequentially performed Te, when it is determined that more synthetic fiber such often the cloth sediment determination hand stage, not to perform the first preliminary dewatering stroke Laundry equipment. A drum which stores laundry and which can rotate at a first rotational speed at which the laundry is dropped onto the water surface at least after the laundry is lifted around a horizontal axis and a second rotational speed at which the laundry is centrifugally dehydrated A water receiving tub enclosing the drum and elastically supported by a laundry machine body, a motor for driving the drum, a rotation speed detecting means for detecting the rotation speed of the drum, and supplying hot air to the drum The hot air supply means, the cloth quality determination means for determining the cloth quality of the laundry, the detection result of the rotational speed detection means and the determination result of the cloth quality determination means are inputted, and the operation of the motor, the hot air supply means, etc. control to wash the laundry, rinse, and control means for controlling the drying cycle for drying the laundry and the washing step for dehydration, the control means, when performing subsequent drying step in the washing cycle, in the second rotational speed Prior to the final dehydration of the dynamic washing stroke, the detangling process to drive the drum at the first speed, third laundry from said first rotational speed is a rotational speed that sticks to the inner surface of the drum A cloth balancing step for gradually increasing the number of rotations to the number of rotations, an unbalance determination step for determining unbalance of the laundry by driving at the third number of rotations, and the third after the unbalance determination step. the second cycle which is composed of a preliminary dewatering process driven at a rotational speed of higher than the rotational speed and the second lower than the revolving speed 5 to perform a plurality of times, more synthetic fibers such to the cloth sediment determination hand stage Laundry equipment in which the number of executions of the cycle is reduced when it is determined that there are many cottons, compared to when it is determined that there are many cottons . An input setting means for setting a like operation course, the fabric quality determining means, any one of claims 1 to 3 which is adapted to determine the distribution quality of the laundry by the information set in the input setting unit 1 Laundry equipment according to item. A water level detecting means for detecting the water level in the water receiving tub and a laundry amount detecting means for detecting the amount of laundry; the cloth quality determining means is detected by the detection result of the laundry quantity detecting means and the water level detecting means; The laundry machine according to any one of claims 1 to 3 , wherein the cloth quality of the laundry is determined based on the amount of fluctuation of the water level during washing. The cloth quality determining means is configured to determine the cloth quality of the laundry based on a ratio of an inertia rotation time from a predetermined number of rotations in a dry state before washing and a wet state after washing. The laundry device according to any one of 1 to 3 .

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