JP3785678B2 - Combined washing machine - Google Patents

Combined washing machine Download PDF

Info

Publication number
JP3785678B2
JP3785678B2 JP11245796A JP11245796A JP3785678B2 JP 3785678 B2 JP3785678 B2 JP 3785678B2 JP 11245796 A JP11245796 A JP 11245796A JP 11245796 A JP11245796 A JP 11245796A JP 3785678 B2 JP3785678 B2 JP 3785678B2
Authority
JP
Japan
Prior art keywords
washing
vibration
detection means
receiving cylinder
control means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP11245796A
Other languages
Japanese (ja)
Other versions
JPH09294892A (en
Inventor
謙治 寺井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP11245796A priority Critical patent/JP3785678B2/en
Publication of JPH09294892A publication Critical patent/JPH09294892A/en
Application granted granted Critical
Publication of JP3785678B2 publication Critical patent/JP3785678B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Control Of Washing Machine And Dryer (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、洗濯兼脱水槽を内包する受け筒を検知する振動検知手段を備えた脱水兼用洗濯機に関するものである。
【0002】
【従来の技術】
従来、脱水兼用洗濯機は図7に示すように構成していた。以下、その構成について説明する。
【0003】
図に示すように、受け筒1は、内側には洗濯兼脱水槽2を回転自在に配設してあり、洗濯兼脱水槽2の上端部には脱水振動を減衰する流体バランサー3を固着しており、中央底部にはパルセーター4を回転自在に配設している。制御装置5は洗い、すすぎ、脱水の各行程を逐次制御する。給水弁6は、水道水を給水口7から洗濯兼脱水槽2内に給水する。排水弁8は、排水ホース9を介して受け筒1内の洗濯液を機外へ排水する。水位検知手段10は受け筒1の内方下部に設けたエアートラップ11の空気圧を検知して制御装置5に入力し、制御装置5は水位検知手段10から出力された信号から水位を判定する。モータ12は、洗濯兼脱水槽2とパルセーター4を駆動するものである。
【0004】
上記構成において動作を説明すると、洗濯物と洗剤を洗濯兼脱水槽2内に投入し、スタートボタン(図示せず)を押すと、洗い行程が始まって給水弁6が開き、水道水が給水口7から洗濯兼脱水槽2内へ布量に応じた所定水位まで給水される。その後、モータ12が回転して洗濯兼脱水槽2の底部に配置されたパルセーター4が攪拌し、洗いを開始する。洗い行程が終わると、第1のすすぎ行程が始まり、排水弁8を開いて排水ホース9を介して洗濯液を機外へ排水する。
【0005】
つぎに、洗濯兼脱水槽2を回転して、洗濯物に含まれる洗濯液を遠心脱水するが、高速回転する前にモータ12のオン、オフを繰り返すことによって、洗濯兼脱水槽2の回転数を徐々に高めていき、洗濯物の水分を少しずつ脱水する、いわゆる間欠脱水を行う。洗濯物が大きく偏っているときは、受け筒1が大きく振れてアンバランス検知手段13に当たり、制御装置5はアンバランス状態と判定して脱水を停止し、排水弁8を閉じてから給水弁6を開いて給水し、パルセーター4により攪拌してアンバランス状態を解消してから、再度脱水をする。脱水終了後は排水弁8を閉じ、洗いと同様に水道水を洗濯兼脱水槽2へ溜め、パルセーター4により攪拌してためすすぎを行う。その後、同様に第2のすすぎ行程を行い、最後にすすぎ液の排水と洗濯物の遠心脱水をして洗濯が終了する。
【0006】
【発明が解決しようとする課題】
このような従来の脱水兼用洗濯機では、脱水起動時のモータ12をオン、オフする間欠脱水時に、洗濯兼脱水槽2の回転数に関係なく所定の時間でオン、オフしているため、洗濯物の量や種類、アンバランス状態によって回転数が変わり、洗濯兼脱水槽2の共振回転数付近で長時間オン、オフを繰り返すことがあり、振動および騒音が長時間にわたり大きくなったり、振動が大きいため洗濯物に含まれる泡立った洗濯液が受け筒1から排水しにくくなり、洗濯兼脱水槽2の回転により洗濯兼脱水槽2と受け筒1の間でかきまぜらてさらに泡立ち、回転数が上がらず、大きな残水音が発生するという問題、すなわち泡起動性能が低いという問題を有していた。
【0007】
また、洗濯物のアンバランス状態が非常に大きいときは、受け筒1は脱水起動した瞬間に最も大きく振れるが、アンバランス検知手段13と脱水起動する瞬間の洗濯物との位置関係によっては、まれに受け筒1がアンバランス検知手段13に当たらないことがあり、そのときは受け筒1が外枠14に当たったり、上部カバー15に突き上げるという問題を有していた。
【0008】
本発明は上記問題を解決するもので、洗濯物の条件にばらつきがあっても、安定した脱水動作を行わせるとともに、部品点数の削減による製品の組立性の向上を目的としている。
【0009】
【課題を解決するための手段】
本発明の脱水兼用洗濯機においては、洗濯兼脱水槽を内包する受け筒に振動検知手段を取り付け、この振動検知手段は、制御手段に接続したコイルと、内部に設けた空気室と、空気室の一部を構成する伸縮可能な空気遮断板と、空気遮断板に固定されコイルの中心軸に沿って移動する鉄芯とを有し、受け筒の内方下部に設けたエアートラップと空気室とが空気的に接続され、受け筒が振動したとき、鉄芯が変位することによりコイルの電気的性質が変化するよう構成し、前記受け筒に洗濯液が入っているときは、前記エアートラップの空気圧により前記空気遮断板に固定された前記鉄芯が変位するようにし、制御手段は、洗い、すすぎ、脱水の各行程を逐次制御するとともに、受け筒に洗濯液が入っているときは振動検知手段から出力される信号から受け筒の水位を判定するようにし、洗濯兼脱水槽の回転時には振動検知手段から出力される信号の変化量より受け筒の振動を判定して制御するようにしたものである。
【0010】
これにより、洗濯物の条件にばらつきがあっても、安定した脱水動作を行わせるとともに、部品点数の削減による製品の組立性の向上をさせることができる。
【0011】
【発明の実施の形態】
本発明の請求項1に記載の発明は、洗濯兼脱水槽を内包する受け筒と、洗い、すすぎ、脱水の各行程を逐次制御する制御手段と、前記受け筒に取り付けた振動検知手段を備え、前記振動検知手段は、前記制御手段に接続したコイルと、内部に設けた空気室と、前記空気室の一部を構成する伸縮可能な空気遮断板と、前記空気遮断板に固定され前記コイルの中心軸に沿って移動する鉄芯とを有し、前記受け筒の内方下部に設けたエアートラップと前記空気室とが空気的に接続され、前記受け筒が振動したとき、前記鉄芯が変位することにより前記コイルの電気的性質が変化するよう構成し、前記受け筒に洗濯液が入っているときは、前記エアートラップの空気圧により前記空気遮断板に固定された前記鉄芯が変位するようにし、前記制御手段は、前記受け筒に洗濯液が入っているときは前記振動検知手段から出力される信号から前記受け筒の水位を判定するようにし、前記洗濯兼脱水槽の回転時には前記振動検知手段から出力される信号の変化量より前記受け筒の振動を判定して制御するようにしたものであり、洗濯物の条件にばらつきがあっても、受け筒の振動によって制御を変えることで、安定した脱水動作を行うことができるとともに、振動検知手段により受け筒内の水位を検知することができ、本来全く別の検知である振動検知と水位検知とを一つの検知手段で検知できるため、部品点数の削減による製品の組立性の向上、信頼性の向上、サービス性の向上をすることができる。
【0012】
請求項に記載の発明は、上記請求項1に記載の発明において、制御手段は、洗濯兼脱水槽の回転時に振動検知手段から出力される信号の周期を判定し、信号の周期の逆数を演算することで、前記洗濯兼脱水槽の回転数を判定して制御するようにしたものであり、振動検知手段により洗濯兼脱水槽の回転数を検知することができ、本来全く別の検知である振動検知と水位検知と回転数検知とを一つの検知手段で検知できるため、部品点数の削減による製品の組立性の向上、信頼性の向上、サービス性の向上をすることができる。
【0013】
請求項に記載の発明は、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、洗濯兼脱水槽の回転時に前記洗濯兼脱水槽の振動が所定量より大きいと判定したときは、前記洗濯兼脱水槽の回転を停止するようにしたものであり、振動検知手段により脱水起動時の洗濯物の位置に関係なくアンバランス検知をすることができ、別の検知手段である振動検知手段と水位検知とアンバランス検知手段とを一つにできるため、部品点数の削減による製品の組立性の向上、信頼性の向上、サービス性の向上をすることができる
【0014】
【実施例】
以下、本発明の実施例について、図面を参照しながら説明する。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。
【0015】
(実施例1)
図2に示すように、振動検知手段16は、一方を開放してある樹脂製のシリンダー16の回りに、リード線18を介して制御手段19に接続されたコイル20を固定し、シリンダー17の内側にはスプリング21を介して鉄芯22をコイル20の中心軸に沿って移動可能に配設してあり、振動検知手段16に加速度が加わると、鉄芯22が変位してコイル20内の透磁率が変化するため、コイル20の自己インダクタンスが変化するように構成している。
【0016】
この振動検知手段13は、図3に示すように、受け筒1に取り付け、図1に示すように、制御手段19に接続している。制御手段19は、操作表示手段23により入力された設定内容に基づいて洗い、すすぎ、脱水の各行程を逐次制御するとともに、振動検知手段16から出力される信号の変化量より受け筒1の振動を判定して制御するようにしたもので、パワースイッチング手段24を介して、給水弁6、排水弁8およびモータ12を逐次制御する。記憶手段25は、制御手段19による逐次制御に必要なデータを記憶している。
【0017】
布量検知手段26は、洗濯兼脱水槽2内の洗濯物の量を検知するもので、モータ12の通電を遮断した後の惰性回転中のモータ12の逆起電力により洗濯物の量を検知し、その出力を制御手段19に入力するようにしている。水位検知手段10は、洗濯兼脱水槽2内の水位を検知し、その出力を制御手段19に入力している。制御手段19、操作表示手段23、パワースイッチング手段24、記憶手段25、布量検知手段26などで制御装置27を構成している。
【0018】
上記構成において動作を説明すると、まず、洗濯兼脱水槽2に水を溜めるため、給水弁6を開いて給水口7から洗濯兼脱水槽2へ給水し、水位検知手段10が所定の水位に達したと判断すると給水を止め、洗い行程に移る。洗い行程終了後、排水弁8を開いて排水を開始し、水位検知手段10が水位を検知できなくなるまで水位が下がってから一定時間経って排水終了と判定する。
【0019】
つぎに、洗濯兼脱水槽2を回転して洗濯物を脱水すると、洗濯物のアンバランス状態によって受け筒1の振動が変わるが、受け筒1に取り付けた振動検知手段16の出力により、制御手段19は振動を判定し、振動によって制御を変えることで安定した脱水動操作を行うことができる。
【0020】
なお、振動検知手段16の取付箇所は、受け筒1以外でも振動しているところであればよい。また、振動検知手段16を取り付ける向きはどの向きでもよい。また、振動検知手段16内にコイル20のインダクタンスをデジタル信号に変換する変換素子を配置して、出力信号を変換してもよい。
【0021】
(実施例2)
図4に示すように、振動検知手段28は、一方を開放してある樹脂製のシリンダー29の回りに、リード線18を介して制御手段19に接続されたコイル20を固定し、シリンダー29の内側にはスプリング21を介して鉄芯22を配設している。鉄芯22のスプリング21の反対側にはゴム製の空気遮断板30を固定し、この空気遮断板30は、内部に設けた空気室31の一部を構成している。
【0022】
この振動検知手段28は、図5に示すように、受け筒1に取り付け、空気室31と受け筒1の内方下部に設けたエアートラップ11とをエアーホース32を介して空気的に接続し、エアートラップ11の空気圧により空気遮断板30に固定された鉄芯22が変位するようにし、水位検知手段を兼ねるように構成している。
【0023】
この振動検知手段28の出力を上記実施例1と同様に、制御手段19に入力し、制御手段19は、受け筒1に洗濯液が入っているときは、振動検知手段28から出力される信号から受け筒1の水位を判定するようにし、洗濯兼脱水槽2の回転時には受け筒1の振動を判定して制御するようにしている。他の構成は上記実施例1と同じである。
【0024】
上記構成において動作を説明すると、洗濯兼脱水槽2に洗濯液が入っているときは、洗濯液の水位によりエアートラップ11の空気圧が変わり、空気室31の一部を構成している空気遮断板30にかかる圧力も変わるため、鉄芯22の位置も変化する。それによって振動検知手段28の出力が変わり、制御手段19は水位を判定できる。したがって、水位検知手段を設けることなく洗濯兼脱水槽2の水位を検知することができる。
【0025】
また、洗濯兼脱水槽2が回転しているときは、振動検知手段28に加速度が加わり、上記実施例1の振動検知手段16と同様に、振動検知手段28から出力される信号も変化し、制御手段19はその変化量から受け筒1の振動を判定することができ、振動によって制御を変えることで安定した脱水動操作を行うことができる。
【0026】
なお、振動検知手段28の取付箇所は、受け筒1以外でも振動しているところであればよい。また、振動検知手段28を取り付ける向きはどの向きでもよい。また、振動検知手段28内にコイル20のインダクタンスをデジタル信号に変換する変換素子を配置して、出力信号を変換してもよい。
【0027】
(実施例3)
図1における制御手段19は、洗濯兼脱水槽2の回転時に振動検知手段16から出力される信号の周期を判定し、信号の周期の逆数を演算することで、洗濯兼脱水槽2の回転数を判定して制御するようにしている。他の構成は上記実施例1と同じである。
【0028】
上記構成において図6を参照しながら動作を説明すると、洗濯兼脱水槽2が回転して受け筒1が振動しているときは、振動検知手段16より出力する信号の周期は、受け筒1の振動の周期と同一になる。受け筒1の振動の周期の逆数は洗濯兼脱水槽2の回転数に比例しているため、制御手段19は振動検知手段16の出力信号の逆数を演算することで、洗濯兼脱水槽2の回転数を判定することができる。したがって、回転数検知手段を設けることなく洗濯兼脱水槽2の回転数を検知することができる。
【0029】
なお、上記実施例では、実施例1の振動検知手段16により洗濯兼脱水槽2の回転数を判定するようにしているが、実施例2の振動検知手段28を使用して、洗濯兼脱水槽2の回転数を判定するようにしてもよい。
【0030】
(実施例4)
図1における制御手段19は、洗濯兼脱水槽2の回転時に振動検知手段16により検知した洗濯兼脱水槽2の振動が所定量より大きいと判定したときは、洗濯兼脱水槽2の回転を停止するようにしている。他の構成は上記実施例1と同じである。
【0031】
上記構成において動作を説明すると、振動検知手段16により洗濯兼脱水槽2の振動を検知することによって、アンバランス検知機能を持たせることができ、振動検知手段16により脱水起動時の洗濯物の位置に関係なくアンバランス検知をすることができ、制御手段19は、洗濯兼脱水槽2の回転時に受け筒1の振動が所定量より大きいときは、洗濯兼脱水槽2の回転を停止して、再給水をしてパルセーター4で洗濯物を攪拌し、洗濯物のアンバランスを解消してから再度脱水する。
【0032】
したがって、受け筒1が外枠14に当たったり、上部カバー15に突き上げるということがなくなる。また、振動検知手段とアンバランス検知手段とを一つにできるため、部品点数の削減による製品の組立性の向上、信頼性の向上、サービス性の向上をすることができる。
【0033】
なお、上記実施例では、実施例1の振動検知手段16により洗濯物のアンバランスを検知するようにしているが、実施例2の振動検知手段28を使用して、アンバランスを検知するようにしてもよい。
【0034】
また、実施例1の振動検知手段16で、振動、回転数、アンバランスを検知し、また、実施例2の振動検知手段28で、振動、水位、回転数、アンバランスすべてを検知してもよいし、必要となる所だけを検知してもよい。
【0035】
(実施例5)
図1における制御手段19は、洗濯兼脱水槽2の回転時に洗濯兼脱水槽2の振動が大きいと判定したときは、洗濯兼脱水槽2の回転数を下げるようにし、かつ運転する時間を長くするようにしている。他の構成は上記実施例1と同じである。
【0036】
上記構成において動作を説明すると、洗濯兼脱水槽2の回転時に、洗濯兼脱水槽2の振動が大きいとき、洗濯兼脱水槽2の回転数を下げることによって、振動が小さくなるように制御しながら、運転する時間を長くして洗濯物を十分脱水することができる。
【0037】
(実施例6)
図1における制御手段19は、洗濯兼脱水槽2の回転起動時に、受け筒1の振動量によって、洗濯兼脱水槽2を高速回転する前の所定の低い回転数で運転する時間を変化させるようにしている。他の構成は上記実施例1と同じである。
【0038】
上記構成において動作を説明すると、脱水開始時の間欠脱水のときなどの洗濯兼脱水槽2の回転起動時に、受け筒1の振動量が大きいときは、低い回転数で長く運転して、洗濯物の水分を十分に脱水して軽くしてから立ち上げるため、振動を小さくすることができ、逆に、振動量が小さいときは、低い回転数で運転する時間を短くして立ち上げるため、時間を短縮することができる。
【0039】
(実施例7)
図1における制御手段19は、洗濯兼脱水槽2の回転起動時に、受け筒1の振動を検知しながら洗濯兼脱水槽2の回転数を徐々に上げていき、振動が急に大きくなり始める回転数に達したら、回転数を所定量下げて所定時間運転し、その後、回転数を上げるようにしている。他の構成は上記実施例1と同じである。
【0040】
上記構成において動作を説明すると、脱水開始時の間欠脱水のときなどの洗濯兼脱水槽2の回転起動時に、洗濯物の多い、少ない、または水を含みやすい洗濯物と含みにくい洗濯物など、洗濯物の条件によって共振回転数は変わるが、振動が急に大きくなり始める回転数によって共振回転数を検知し、共振回転数に達すると回転数を所定量下げて所定時間運転し、洗濯物の水分を十分に脱水して軽くしてから回転数を立ち上げる。したがって、振動を小さくすることができる。
【0041】
(実施例8)
図1における制御手段19は、判定した受け筒1の振動量が所定の値より小さいときは、洗濯兼脱水槽2の回転制御を判定した回転数による制御をせずに、予め設定した時間によって制御するようにしている。他の構成は上記実施例1と同じである。
【0042】
上記構成において動作を説明すると、受け筒1の振動量が非常に小さいときは、振動の周期が検知しにくく、周期の逆数を演算することで得た回転数を誤判定する恐れがある。このときは、制御手段19は、振動が少ないときのために予め設定しておいた時間による制御を行う。したがって、回転数の誤判定による誤った制御をすることがなくなる。
【0043】
なお、上記各実施例では、受け筒1の内側に洗濯兼脱水槽2を回転自在に配設して垂直方向に支持しているが、水平方向に支持した、いわゆるドラム式脱水兼用洗濯機であっても、同様に構成することができ、同様の作用効果を得ることができる。
【0044】
【発明の効果】
以上のように本発明の請求項1に記載の発明によれば、洗濯兼脱水槽を内包する受け筒と、洗い、すすぎ、脱水の各行程を逐次制御する制御手段と、前記受け筒に取り付けた振動検知手段を備え、前記振動検知手段は、前記制御手段に接続したコイルと、内部に設けた空気室と、前記空気室の一部を構成する伸縮可能な空気遮断板と、前記空気遮断板に固定され前記コイルの中心軸に沿って移動する鉄芯とを有し、前記受け筒の内方下部に設けたエアートラップと前記空気室とが空気的に接続され、前記受け筒が振動したとき、前記鉄芯が変位することにより前記コイルの電気的性質が変化するよう構成し、前記受け筒に洗濯液が入っているときは、前記エアートラップの空気圧により前記空気遮断板に固定された前記鉄芯が変位するようにし、前記制御手段は、前記受け筒に洗濯液が入っているときは前記振動検知手段から出力される信号から前記受け筒の水位を判定するようにし、前記洗濯兼脱水槽の回転時には前記振動検知手段から出力される信号の変化量より前記受け筒の振動を判定して制御するようにしたから、洗濯物の条件にばらつきがあっても、受け筒の振動によって制御を変えることで、安定した脱水動作を行うことができるとともに、振動検知手段を水位検知手段としても使用できるため、受け筒に洗濯液が入っているときは水位を検知でき、洗濯兼脱水槽が回転しているときは受け筒の振動を検知でき、本来全く別の検知である振動検知と水位検知とを一つの検知手段で検知できるため、部品点数の削減による製品の組立性の向上、信頼性の向上、サービス性の向上をすることができる。
【0045】
また、請求項に記載の発明によれば、制御手段は、洗濯兼脱水槽の回転時に振動検知手段から出力される信号の周期を判定し、信号の周期の逆数を演算することで、前記洗濯兼脱水槽の回転数を判定して制御するようにしたから、振動検知手段により洗濯兼脱水槽の回転数を検知することができ、本来全く別の検知である振動検知と水位検知と回転数検知とを一つの検知手段で検知できるため、部品点数の削減による製品の組立性の向上、信頼性の向上、サービス性の向上をすることができる。
【0046】
また、請求項に記載の発明によれば、制御手段は、洗濯兼脱水槽の回転時に前記洗濯兼脱水槽の振動が所定量より大きいと判定したときは、前記洗濯兼脱水槽の回転を停止するようにしたから、振動検知手段により脱水起動時の洗濯物の位置に関係なくアンバランス検知をすることができ、洗濯兼脱水槽の回転時に受け筒の振動が非常に大きいときは、確実に検知して洗濯兼脱水槽の回転を停止するため、受け筒が外枠に当たったり、上部カバーに突き上げるということがなく、また、別の検知手段である振動検知手段と水位検知とアンバランス検知手段と、または、振動検知手段と水位検知と回転数検知とアンバランス検知手段とを一つにできるため、部品点数の削減による製品の組立性の向上、信頼性の向上、サービス性の向上をすることができる
図面の簡単な説明】
【図1】 本発明の第1の実施例の脱水兼用洗濯機のブロック回路図
【図2】 同脱水兼用洗濯機の振動検知手段の拡大断面図
【図3】 同脱水兼用洗濯機の縦断面図
【図4】 本発明の第2の実施例の脱水兼用洗濯機の振動検知手段の拡大断面図
【図5】 同脱水兼用洗濯機の縦断面図
【図6】 本発明の第3の実施例の脱水兼用洗濯機の受け筒の振動を示すタイムチャート
【図7】 従来の脱水兼用洗濯機の縦断面図
【符号の説明】
1 受け筒
2 洗濯兼脱水槽
16 振動検知手段
19 制御手段
20 コイル
22 鉄心
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dehydrating and combined washing machine provided with vibration detecting means for detecting a receiving cylinder containing a washing and dehydrating tub.
[0002]
[Prior art]
Conventionally, a dehydrating and washing machine is configured as shown in FIG. Hereinafter, the configuration will be described.
[0003]
As shown in the figure, the receiving cylinder 1 has a washing / dehydrating tub 2 rotatably disposed inside, and a fluid balancer 3 for attenuating dehydration vibration is fixed to the upper end of the washing / dehydrating tub 2. The pulsator 4 is rotatably disposed at the center bottom. The control device 5 sequentially controls each process of washing, rinsing and dehydration. The water supply valve 6 supplies tap water from the water supply port 7 into the washing and dewatering tank 2. The drain valve 8 drains the washing liquid in the receiving cylinder 1 to the outside through the drain hose 9. The water level detecting means 10 detects the air pressure of the air trap 11 provided at the inner lower part of the receiving cylinder 1 and inputs it to the control device 5, and the control device 5 determines the water level from the signal output from the water level detecting means 10. The motor 12 drives the washing / dehydrating tub 2 and the pulsator 4.
[0004]
The operation in the above configuration will be described. When laundry and detergent are put into the washing and dewatering tub 2 and a start button (not shown) is pushed, the washing process starts, the water supply valve 6 opens, and the tap water is supplied to the water supply port. Water is supplied from 7 to the washing and dewatering tub 2 to a predetermined water level corresponding to the amount of cloth. Thereafter, the motor 12 rotates and the pulsator 4 disposed at the bottom of the washing and dewatering tub 2 is stirred to start washing. When the washing process ends, the first rinsing process starts, the drain valve 8 is opened, and the washing liquid is drained out of the machine via the drain hose 9.
[0005]
Next, the washing and dewatering tub 2 is rotated to centrifugally dehydrate the washing liquid contained in the laundry. By rotating the motor 12 on and off before rotating at high speed, the number of rotations of the washing and dewatering tub 2 is increased. The so-called intermittent dehydration is performed in which the moisture of the laundry is gradually dehydrated. When the laundry is largely biased, the receiving tube 1 is shaken greatly and hits the unbalance detection means 13, the controller 5 determines that the balance is unbalanced, stops dehydration, closes the drain valve 8, and then the water supply valve 6 Is opened, water is supplied, and the pulsator 4 is stirred to eliminate the unbalanced state, followed by dehydration again. After the dehydration is completed, the drain valve 8 is closed, and the tap water is stored in the washing and dewatering tub 2 in the same manner as the washing, and is stirred by the pulsator 4 for rinsing. Thereafter, the second rinsing process is performed in the same manner. Finally, the rinsing liquid is drained and the laundry is subjected to centrifugal dehydration, thereby completing the washing.
[0006]
[Problems to be solved by the invention]
In such a conventional dehydrating and washing machine, since the motor 12 at the time of dehydration activation is turned on and off, the washing and dehydrating tub 2 is turned on and off for a predetermined time regardless of the number of rotations. The number of rotations varies depending on the quantity, type, and unbalanced state of the item, and may turn on and off for a long time near the resonant rotation number of the washing / dehydrating tub 2. Vibration and noise increase over a long period of time. big for washing liquid is less likely to drain from the receiving cylinder 1 foamed contained in the laundry, washing and is stirred et between receiving cylinder 1 and the washing and dewatering tank 2 by rotation of the dewatering tank 2 further foaming, the rotational speed However, there was a problem that a large residual water noise was generated, that is, the foam starting performance was low.
[0007]
In addition, when the unbalanced state of the laundry is very large, the receiving tube 1 shakes the most at the moment when dehydration is started, but it is rare depending on the positional relationship between the unbalance detecting means 13 and the laundry at the moment when dehydration is started. In some cases, the receiving tube 1 may not hit the unbalance detecting means 13, and at that time, the receiving tube 1 may hit the outer frame 14 or be pushed up to the upper cover 15.
[0008]
An object of the present invention is to solve the above problem, and to improve the assembly of products by reducing the number of parts while allowing a stable dehydration operation to be performed even if there are variations in laundry conditions.
[0009]
[Means for Solving the Problems]
In the dehydrating and washing machine of the present invention, vibration detecting means is attached to a receiving cylinder containing the washing and dehydrating tub, and the vibration detecting means includes a coil connected to the control means, an air chamber provided inside, and an air chamber. An air trap and an air chamber provided at the inner lower part of the receiving cylinder, having a telescopic air shielding plate constituting a part of the housing and an iron core that is fixed to the air shielding plate and moves along the central axis of the coil Are electrically connected, and when the receiving tube vibrates, the electrical properties of the coil are changed by the displacement of the iron core, and when the washing liquid is contained in the receiving tube, the air trap The iron core fixed to the air shielding plate is displaced by the air pressure of the air, and the control means sequentially controls each step of washing, rinsing and dewatering, and vibrates when the washing liquid is in the receiving cylinder. Output from detection means So as to determine the water level of the receiving cylinder from the items, at the time of rotation of the washing and dewatering tank is obtained so as to control to determine the vibration of the variation from the receiving sleeve of the signal output from the vibration detecting means.
[0010]
Thereby, even if there are variations in the conditions of the laundry, it is possible to perform a stable dehydrating operation and to improve the assemblability of the product by reducing the number of parts .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
According to a first aspect of the present invention, a receiving cylinder which encloses the washing and dewatering tank, washing, rinsing, and control means for controlling each stroke of dehydrated sequentially and a vibration detecting means mounted on the receiving sleeve The vibration detection means includes a coil connected to the control means, an air chamber provided therein, an extendable air blocking plate constituting a part of the air chamber, and the air blocking plate fixed to the air blocking plate. An iron core that moves along the central axis of the coil, an air trap provided at an inner lower portion of the receiving cylinder and the air chamber are connected pneumatically, and when the receiving cylinder vibrates, the iron When the core is displaced, the electrical property of the coil is changed, and when the washing liquid is contained in the receiving cylinder, the iron core fixed to the air blocking plate by the air trap air pressure is so as to displace said control means Is output from the vibration detection means during the so as to determine the water level in the receiving cylinder from the signal output from the vibration detecting means, the rotation of the washing and dewatering tank when washing liquid is in the bush The vibration of the receiving cylinder is determined and controlled based on the amount of change in the signal. Even if the laundry conditions vary, the control is changed by the vibration of the receiving cylinder, so that stable dehydrating operation can be performed. It is possible to detect the water level in the receiving cylinder with the vibration detection means, and the vibration detection and the water level detection, which are originally completely different detections, can be detected with one detection means. It is possible to improve assembly of products, improve reliability, and improve serviceability.
[0012]
According to a second aspect of the present invention, in the first aspect of the present invention, the control means determines the period of the signal output from the vibration detecting means when the washing and dewatering tub rotates, and calculates the reciprocal of the signal period. By calculating, the number of rotations of the washing and dehydrating tub is determined and controlled, and the number of rotations of the washing and dehydrating tub can be detected by the vibration detecting means. Since certain vibration detection, water level detection, and rotation speed detection can be detected by a single detection means, it is possible to improve the assembly of the product, improve the reliability, and improve the serviceability by reducing the number of parts.
[0013]
The invention according to claim 3 is the invention according to claim 1 or 2 , wherein when the control means determines that the vibration of the washing and dewatering tub is larger than a predetermined amount during rotation of the washing and dewatering tub, The rotation of the washing and dewatering tub is stopped, and the vibration detection means can detect unbalance regardless of the position of the laundry at the time of dehydration activation, and the vibration detection means is another detection means. Since the water level detection and the unbalance detection means can be combined into one, it is possible to improve the assembly of the product, improve the reliability, and improve the serviceability by reducing the number of parts .
[0014]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. In addition, the same structure as a prior art example attaches | subjects the same code | symbol, and abbreviate | omits description.
[0015]
Example 1
As shown in FIG. 2, the vibration detection means 16 fixes a coil 20 connected to the control means 19 via a lead wire 18 around a resin cylinder 16 with one end open. An iron core 22 is arranged on the inner side through a spring 21 so as to be movable along the central axis of the coil 20. When acceleration is applied to the vibration detecting means 16, the iron core 22 is displaced and the inside of the coil 20 is moved. Since the magnetic permeability changes, the self-inductance of the coil 20 is changed.
[0016]
The vibration detection means 13 is attached to the receiving cylinder 1 as shown in FIG. 3, and is connected to the control means 19 as shown in FIG. The control means 19 sequentially controls each process of washing, rinsing and dehydration based on the setting contents inputted by the operation display means 23, and the vibration of the receiving cylinder 1 from the amount of change of the signal output from the vibration detecting means 16. The water supply valve 6, the drain valve 8 and the motor 12 are sequentially controlled via the power switching means 24. The storage unit 25 stores data necessary for the sequential control by the control unit 19.
[0017]
The cloth amount detection means 26 detects the amount of laundry in the washing and dewatering tub 2 and detects the amount of laundry by the counter electromotive force of the motor 12 during inertial rotation after the motor 12 is de-energized. The output is input to the control means 19. The water level detection means 10 detects the water level in the washing and dewatering tub 2 and inputs the output to the control means 19. A control device 27 is constituted by the control means 19, the operation display means 23, the power switching means 24, the storage means 25, the cloth amount detection means 26, and the like.
[0018]
The operation in the above configuration will be described. First, in order to collect water in the washing and dewatering tub 2, the water supply valve 6 is opened to supply water to the washing and dewatering tub 2 from the water supply port 7, and the water level detecting means 10 reaches a predetermined water level. When it is judged that the water supply has been made, the water supply is stopped and the washing process is started. After completion of the washing process, the drainage valve 8 is opened to start drainage, and it is determined that drainage is completed after a certain time from when the water level is lowered until the water level detection means 10 cannot detect the water level.
[0019]
Next, when the washing and dewatering tub 2 is rotated and the laundry is dehydrated, the vibration of the receiving cylinder 1 changes depending on the unbalanced state of the laundry, but the control means is controlled by the output of the vibration detecting means 16 attached to the receiving cylinder 1. 19 determines the vibration and can perform a stable dehydration operation by changing the control according to the vibration.
[0020]
In addition, the attachment location of the vibration detection means 16 should just be a place other than the receiving cylinder 1 that is vibrating. Further, the direction in which the vibration detecting means 16 is attached may be any direction. Further, a conversion element that converts the inductance of the coil 20 into a digital signal may be arranged in the vibration detection means 16 to convert the output signal.
[0021]
(Example 2)
As shown in FIG. 4, the vibration detection means 28 fixes a coil 20 connected to the control means 19 via the lead wire 18 around a resin cylinder 29 with one end opened. An iron core 22 is disposed on the inside via a spring 21. A rubber air blocking plate 30 is fixed to the opposite side of the iron core 22 to the spring 21, and this air blocking plate 30 constitutes a part of an air chamber 31 provided inside.
[0022]
As shown in FIG. 5, the vibration detecting means 28 is attached to the receiving cylinder 1 and pneumatically connects the air chamber 31 and the air trap 11 provided at the inner lower portion of the receiving cylinder 1 via an air hose 32. The iron core 22 fixed to the air blocking plate 30 is displaced by the air pressure of the air trap 11 so that it also serves as a water level detecting means.
[0023]
The output of the vibration detection means 28 is input to the control means 19 as in the first embodiment, and the control means 19 outputs a signal output from the vibration detection means 28 when the washing liquid is in the receiving cylinder 1. Thus, the water level of the receiving cylinder 1 is determined, and the vibration of the receiving cylinder 1 is determined and controlled when the washing and dewatering tub 2 rotates. Other configurations are the same as those of the first embodiment.
[0024]
In the above configuration, the operation will be described. When the washing liquid is contained in the washing and dewatering tub 2, the air pressure of the air trap 11 changes depending on the water level of the washing liquid, and the air blocking plate constituting a part of the air chamber 31 Since the pressure applied to 30 also changes, the position of the iron core 22 also changes. As a result, the output of the vibration detection means 28 changes, and the control means 19 can determine the water level. Therefore, the water level of the washing and dewatering tub 2 can be detected without providing a water level detecting means.
[0025]
Further, when the washing and dewatering tub 2 is rotating, acceleration is applied to the vibration detecting means 28, and the signal output from the vibration detecting means 28 is changed similarly to the vibration detecting means 16 of the first embodiment. The control means 19 can determine the vibration of the receiving cylinder 1 from the amount of change, and a stable dehydration operation can be performed by changing the control by the vibration.
[0026]
In addition, the attachment location of the vibration detection means 28 should just be a place other than the receiving cylinder 1 that is vibrating. Further, the direction in which the vibration detecting means 28 is attached may be any direction. Further, a conversion element that converts the inductance of the coil 20 into a digital signal may be arranged in the vibration detection means 28 to convert the output signal.
[0027]
Example 3
The control means 19 in FIG. 1 determines the period of the signal output from the vibration detection means 16 when the washing / dehydrating tub 2 rotates, and calculates the reciprocal of the period of the signal, thereby rotating the number of rotations of the washing / dehydrating tub 2. Is determined and controlled. Other configurations are the same as those of the first embodiment.
[0028]
The operation will be described with reference to FIG. 6 in the above configuration. When the washing and dewatering tub 2 rotates and the receiving cylinder 1 vibrates, the period of the signal output from the vibration detecting means 16 is the same as that of the receiving cylinder 1. It becomes the same as the period of vibration. Since the reciprocal number of the vibration period of the receiving cylinder 1 is proportional to the rotation speed of the washing / dehydrating tub 2, the control means 19 calculates the reciprocal number of the output signal of the vibration detecting means 16, thereby The rotation speed can be determined. Therefore, the rotational speed of the washing and dewatering tub 2 can be detected without providing the rotational speed detection means.
[0029]
In the above embodiment, the number of rotations of the washing / dehydrating tub 2 is determined by the vibration detecting means 16 of the first embodiment. The number of rotations of 2 may be determined.
[0030]
(Example 4)
1 determines that the vibration of the washing / dehydrating tub 2 detected by the vibration detecting means 16 during rotation of the washing / dehydrating tub 2 is larger than a predetermined amount, the rotation of the washing / dehydrating tub 2 is stopped. Like to do. Other configurations are the same as those of the first embodiment.
[0031]
The operation in the above configuration will be described. By detecting the vibration of the washing and dewatering tub 2 by the vibration detection means 16, an unbalance detection function can be provided, and the position of the laundry at the time of starting dehydration by the vibration detection means 16 can be provided. The control means 19 can stop the rotation of the washing and dehydrating tub 2 when the vibration of the receiving cylinder 1 is larger than a predetermined amount when the washing and dehydrating tub 2 is rotated. Water is supplied again, and the laundry is stirred by the pulsator 4 to eliminate the imbalance of the laundry and then dehydrated again.
[0032]
Therefore, the receiving tube 1 does not hit the outer frame 14 or push up to the upper cover 15. Further, since the vibration detecting means and the unbalance detecting means can be combined into one, it is possible to improve the product assemblability, improve the reliability, and improve the serviceability by reducing the number of parts.
[0033]
In the above-described embodiment, the laundry imbalance is detected by the vibration detection means 16 of the first embodiment. However, the imbalance is detected by using the vibration detection means 28 of the second embodiment. May be.
[0034]
Further, the vibration detection means 16 of the first embodiment detects vibration, rotation speed, and imbalance, and the vibration detection means 28 of the second embodiment detects all vibration, water level, rotation speed, and imbalance. It may be detected only where it is necessary.
[0035]
(Example 5)
When the control means 19 in FIG. 1 determines that the vibration of the washing / dehydrating tub 2 is large during the rotation of the washing / dehydrating tub 2, the rotation speed of the washing / dehydrating tub 2 is decreased and the operation time is increased. Like to do. Other configurations are the same as those of the first embodiment.
[0036]
The operation in the above configuration will be described. When the washing and dewatering tub 2 rotates, when the vibration of the washing and dewatering tub 2 is large, the vibration is controlled to be reduced by decreasing the rotation speed of the washing and dewatering tub 2. The laundry can be dehydrated sufficiently by extending the driving time.
[0037]
(Example 6)
The control means 19 in FIG. 1 changes the operation time at a predetermined low speed before rotating the washing and dewatering tub 2 at a high speed according to the vibration amount of the receiving cylinder 1 when the washing and dewatering tub 2 starts rotating. I have to. Other configurations are the same as those of the first embodiment.
[0038]
The operation in the above configuration will be described. When the washing / dehydrating tub 2 starts rotating, such as when intermittent dehydration is started, when the vibration amount of the receiving cylinder 1 is large, the container 1 is operated at a low rotation speed for a long time. Since the water is fully dehydrated and lightened before starting up, the vibration can be reduced, and conversely, when the amount of vibration is small, the time to operate at a low rotational speed is shortened and the time is increased. It can be shortened.
[0039]
(Example 7)
The control means 19 in FIG. 1 gradually increases the number of rotations of the washing and dewatering tub 2 while detecting the vibration of the receiving cylinder 1 when the rotation of the washing and dewatering tub 2 is started, and the vibration starts to increase suddenly. When the number is reached, the rotational speed is decreased by a predetermined amount and the system is operated for a predetermined time, and then the rotational speed is increased. Other configurations are the same as those of the first embodiment.
[0040]
The operation of the above configuration will be described. Laundry such as laundry having a lot of laundry, little laundry, or easily containing water and laundry difficult to contain at the time of rotation start of the washing and dewatering tub 2 such as intermittent dehydration at the start of dehydration. The resonance rotational speed changes depending on the conditions of the above, but the resonance rotational speed is detected based on the rotational speed at which the vibration starts to suddenly increase.When the resonant rotational speed is reached, the rotational speed is decreased by a predetermined amount and the operation is performed for a predetermined time. Thoroughly dehydrate and lighten up, then start up the rotation speed. Therefore, vibration can be reduced.
[0041]
(Example 8)
When the determined vibration amount of the receiving cylinder 1 is smaller than a predetermined value, the control means 19 in FIG. 1 does not perform the control based on the determined rotational speed of the washing and dewatering tub 2 but according to a preset time. I try to control it. Other configurations are the same as those of the first embodiment.
[0042]
To explain the operation in the above configuration, when the vibration amount of the receiving cylinder 1 is very small, it is difficult to detect the period of vibration, and there is a possibility that the rotational speed obtained by calculating the reciprocal of the period is erroneously determined. At this time, the control means 19 performs control based on a preset time for when vibration is small. Therefore, erroneous control due to erroneous determination of the rotational speed is eliminated.
[0043]
In each of the above embodiments, the washing and dewatering tub 2 is rotatably disposed inside the receiving tube 1 and supported in the vertical direction. However, in the so-called drum type dehydrating and washing machine that is supported in the horizontal direction, Even if it exists, it can comprise similarly and can obtain the same effect.
[0044]
【The invention's effect】
As described above, according to the first aspect of the present invention, the receiving tube containing the washing and dewatering tub, the control means for sequentially controlling the steps of washing, rinsing and dewatering, and the mounting tube are attached to the receiving tube. Vibration detection means , the vibration detection means comprising: a coil connected to the control means; an air chamber provided therein; an extendable air blocking plate constituting a part of the air chamber; and the air An iron core that is fixed to the shield plate and moves along the central axis of the coil, an air trap provided at an inner lower portion of the receiving cylinder and the air chamber are connected pneumatically, and the receiving cylinder is The coil is configured so that the electrical properties of the coil change when the iron core is displaced when it vibrates. When the washing liquid is in the receiving cylinder, the coil is fixed to the air blocking plate by the air trap air pressure. So that the iron core is displaced And, wherein, when the washing liquid is in the said bush is adapted to determine the level of the receiving tube from a signal output from the vibration detection means, the vibration during rotation of the washing and dewatering tank Since the vibration of the receiving tube is determined and controlled based on the amount of change in the signal output from the detection means, even if the laundry condition varies, the control can be stabilized by changing the control according to the vibration of the receiving tube. The dewatering operation can be performed and the vibration detection means can also be used as a water level detection means, so the water level can be detected when the washing liquid is in the receiving cylinder, and the washing and dehydration tub is rotating Because it can detect the vibration of the cylinder and can detect vibration detection and water level detection, which are essentially different detections, with one detection means, it improves the assembly of products by improving the number of parts, improves reliability, and services It is possible to improve the.
[0045]
According to the invention of claim 2 , the control means determines the period of the signal output from the vibration detection means when the washing and dewatering tub rotates, and calculates the reciprocal of the signal period, Since the number of rotations of the washing and dewatering tub is determined and controlled, the number of rotations of the washing and dewatering tub can be detected by the vibration detecting means, and vibration detection, water level detection, and rotation, which are originally completely different detections. Since the number detection can be detected by a single detection means, it is possible to improve the assembly of products, improve the reliability, and improve the serviceability by reducing the number of parts.
[0046]
According to a third aspect of the present invention, when the control means determines that the vibration of the washing / dehydrating tub is greater than a predetermined amount during the rotation of the washing / dehydrating tub, the control means rotates the washing / dehydrating tub. Because it is stopped, the vibration detection means can detect imbalance regardless of the position of the laundry at the start of dehydration. This stops the washing and dewatering tub from rotating, so that the receiving cylinder does not hit the outer frame or push up the upper cover. In addition, vibration detection means, water level detection, and unbalance are separate detection means. The detection means , or the vibration detection means, the water level detection, the rotation speed detection, and the unbalance detection means can be combined into one, so the assembly of the product is improved by improving the number of parts, the reliability is improved, and the serviceability is improved. do Door can be.
[ Brief description of the drawings]
FIG. 1 is a block circuit diagram of a dehydrating and washing machine according to a first embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view of vibration detecting means of the dehydrating and washing machine. FIG. 4 is an enlarged cross-sectional view of the vibration detecting means of the dehydrating washing machine according to the second embodiment of the present invention. FIG. 5 is a longitudinal sectional view of the dehydrating washing machine. FIG. 6 is a third embodiment of the present invention. Time chart showing the vibration of the receptacle of the example dehydrating and washing machine [FIG. 7] Longitudinal sectional view of the conventional dehydrating and washing machine [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Receptacle 2 Washing / dehydration tank 16 Vibration detection means 19 Control means 20 Coil 22 Iron core

Claims (3)

洗濯兼脱水槽を内包する受け筒と、洗い、すすぎ、脱水の各行程を逐次制御する制御手段と、前記受け筒に取り付けた振動検知手段を備え、前記振動検知手段は、前記制御手段に接続したコイルと、内部に設けた空気室と、前記空気室の一部を構成する伸縮可能な空気遮断板と、前記空気遮断板に固定され前記コイルの中心軸に沿って移動する鉄芯とを有し、前記受け筒の内方下部に設けたエアートラップと前記空気室とが空気的に接続され、前記受け筒が振動したとき、前記鉄芯が変位することにより前記コイルの電気的性質が変化するよう構成し、前記受け筒に洗濯液が入っているときは、前記エアートラップの空気圧により前記空気遮断板に固定された前記鉄芯が変位するようにし、前記制御手段は、前記受け筒に洗濯液が入っているときは前記振動検知手段から出力される信号から前記受け筒の水位を判定するようにし、前記洗濯兼脱水槽の回転時には前記振動検知手段から出力される信号の変化量より前記受け筒の振動を判定して制御するようにした脱水兼用洗濯機 A bush which encloses the washing and dewatering tank, washing, rinsing, and control means for controlling each stroke of dehydrated sequentially and a vibration detection means attached to said receiving sleeve, said vibration detection means, the control means A connected coil, an air chamber provided inside, an extendable air blocking plate constituting a part of the air chamber, and an iron core fixed to the air blocking plate and moving along a central axis of the coil; The air trap provided in the inner lower part of the receiving cylinder and the air chamber are connected pneumatically, and when the receiving cylinder vibrates, the iron core is displaced, whereby the electrical properties of the coil When the washing liquid is contained in the receiving cylinder, the iron core fixed to the air blocking plate is displaced by the air pressure of the air trap, and the control means includes the receiving means. There is washing liquid in the tube The vibration of the vibration detection from the signal output from the means to determine the water level of the receiving cylinder, the washing and dewatering tank the bush from the variation of the signal output from the vibration detection means during rotation of the time A dehydrating combined-use washing machine that is judged and controlled . 制御手段は、洗濯兼脱水槽の回転時に振動検知手段から出力される信号の周期を判定し、信号の周期の逆数を演算することで、前記洗濯兼脱水槽の回転数を判定して制御するようにした請求項1記載の脱水兼用洗濯機。  The control means determines the cycle of the signal output from the vibration detection means during rotation of the washing / dehydrating tub and calculates the reciprocal of the cycle of the signal to determine and control the rotation speed of the washing / dehydrating tub. The combined washing machine for dehydration according to claim 1. 制御手段は、洗濯兼脱水槽の回転時に前記洗濯兼脱水槽の振動が所定量より大きいと判定したときは、前記洗濯兼脱水槽の回転を停止するようにした請求項1または2に記載の脱水兼用洗濯機 Control means, the vibration of the washing and dewatering tank during rotation of the washing and dewatering tank is when it is determined that greater than a predetermined amount, according to claim 1 or 2 so as to stop the rotation of the washing and dewatering tank Dehydrating combined washing machine .
JP11245796A 1996-05-07 1996-05-07 Combined washing machine Expired - Fee Related JP3785678B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11245796A JP3785678B2 (en) 1996-05-07 1996-05-07 Combined washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11245796A JP3785678B2 (en) 1996-05-07 1996-05-07 Combined washing machine

Publications (2)

Publication Number Publication Date
JPH09294892A JPH09294892A (en) 1997-11-18
JP3785678B2 true JP3785678B2 (en) 2006-06-14

Family

ID=14587125

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11245796A Expired - Fee Related JP3785678B2 (en) 1996-05-07 1996-05-07 Combined washing machine

Country Status (1)

Country Link
JP (1) JP3785678B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006061357A (en) 2004-08-26 2006-03-09 Matsushita Electric Ind Co Ltd Washing machine
KR101716820B1 (en) * 2010-12-14 2017-03-15 삼성전자주식회사 Water level/vibration detecting apparatus for washing machine and washing machine having the same
JP2013165800A (en) * 2012-02-15 2013-08-29 Panasonic Corp Washing machine
DE102016219054A1 (en) * 2016-09-30 2018-04-05 Carl Zeiss Microscopy Gmbh Actuator with shape memory element

Also Published As

Publication number Publication date
JPH09294892A (en) 1997-11-18

Similar Documents

Publication Publication Date Title
JP2000245990A (en) Water level and vibration sensor for washing machine
KR101186309B1 (en) Drum type washer and washing method
JP3785678B2 (en) Combined washing machine
JP3865791B2 (en) Drum washing machine
KR100815663B1 (en) Washing machine
KR101054431B1 (en) Washing machine and its dewatering control method
JPH0994380A (en) Washing machine
JPH09276583A (en) Drum type washing machine
CN113167004B (en) Washing machine
JP2004275496A (en) Washing machine
KR100357165B1 (en) Device for sensing quantity of frequency-variation in a drum-washer and Methode for controlling driving-unit by this device
JP4356197B2 (en) Washing machine
KR960005803B1 (en) Dehydrator
KR100617223B1 (en) Device for sensing a water level and vibration-quantity in a drum-washer and Methode for controlling driving-unit by this device
JP3030221B2 (en) Fully automatic washing machine
JPH09122378A (en) Washing and dewatering machine
JPH0790077B2 (en) Fully automatic washing machine
JPH077898Y2 (en) Washing machine
JPS6114394Y2 (en)
KR200208944Y1 (en) Washing machine
JPH0370596A (en) Imbalanced operation-detecting method for washing-machine
JP2002119787A (en) Washing machine control method, and washing machine
JPH10127975A (en) Drum type washing machine
KR0161929B1 (en) Dehydration method of complex type washing machine
JP2002078998A (en) Spin-dry controlling method for laundry machine

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20050510

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20050607

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20050622

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050719

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20060228

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20060313

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100331

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110331

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110331

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120331

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130331

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130331

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140331

Year of fee payment: 8

LAPS Cancellation because of no payment of annual fees