JPH02286196A - Load quantity detector for washing machine - Google Patents
Load quantity detector for washing machineInfo
- Publication number
- JPH02286196A JPH02286196A JP1107658A JP10765889A JPH02286196A JP H02286196 A JPH02286196 A JP H02286196A JP 1107658 A JP1107658 A JP 1107658A JP 10765889 A JP10765889 A JP 10765889A JP H02286196 A JPH02286196 A JP H02286196A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- time
- pulse
- detected
- load
- 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.)
- Granted
Links
- 238000005406 washing Methods 0.000 title claims description 37
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 230000002238 attenuated effect Effects 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 25
- 239000004744 fabric Substances 0.000 abstract description 14
- 239000003990 capacitor Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 description 9
- 238000006297 dehydration reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、洗濯槽あるいは洗濯兼脱水槽内に投入された
衣類の量を検知する洗濯機の負荷量検知装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a load amount detection device for a washing machine that detects the amount of clothes put into a washing tub or a washing and dehydrating tub.
従来から負荷量を検知する洗濯機の負荷量検知装置は数
多く提供されている。たとえば洗濯兼脱水槽あるいは撹
拌翼を駆動するモータと、このモータへの通電制御を行
う制御手段を備え、前記制御手段は前記モータに所定時
間通電し、その直後のオフ期間内の減衰時間により負荷
量を判定するものがある。すなわちモータの逆起電力を
モータ駆動用コンデンサーの端子電圧にて検知し、これ
を直流矩形波パルスに変換し、前記パルスが発生しなく
なるまでの時間およびパルス数にて負荷量を検知するも
のがあった。Conventionally, many load amount detection devices for washing machines that detect the load amount have been provided. For example, the motor is equipped with a motor that drives a washing and dehydrating tank or an agitating blade, and a control means that controls the supply of electricity to the motor. There is something that determines the amount. In other words, there is a device that detects the back electromotive force of the motor using the terminal voltage of the motor drive capacitor, converts this into DC rectangular wave pulses, and detects the load amount based on the time and number of pulses until the pulses are no longer generated. there were.
［発明が解決しようとする課題〕
上記従来の技術では負荷量検知時の布の抵抗のバラツキ
はある程度配慮されているが、洗濯機のクラッチ装置等
の駆動部のメカロス、モータおよびコンデンサーの電気
特性等のバラツキについては配慮されておらず、洗濯機
の一台一台の負荷量検知の計測値が異なり、精度が悪か
った。[Problems to be Solved by the Invention] The above conventional technology takes into account to some extent variations in the resistance of the cloth when detecting the load amount. No consideration was given to variations in the load amount, etc., and the measured values of load detection for each washing machine were different, resulting in poor accuracy.
また従来の方式によればパルス発生しなくなるまでの時
間またはパルス数にて布量の計測を行なっている。すな
わちモータの回転が止まるまでで行なっているため、各
部のメカロスの影響を非常に受けやすくメカロスのバラ
ツキにより布量検知精度が悪くなるという欠点があった
。Furthermore, according to the conventional method, the amount of cloth is measured based on the time until pulses no longer occur or the number of pulses. In other words, since the detection is carried out until the motor stops rotating, it is highly susceptible to mechanical loss in various parts, and there is a drawback that the accuracy in detecting the amount of cloth deteriorates due to variations in mechanical loss.
本発明の目的は洗濯機毎の負荷量計測値のバラツキを最
小限とすることにある。An object of the present invention is to minimize variations in load measurement values for each washing machine.
上記目的を達成するために、本発明の負荷量検知装置は
モータに所定時間通電し、その直後のオフ期間内のモー
タの逆起電力をモータ駆動用コンデンサーの端子電圧に
て検知し、これを直流矩形波パルスに変換し、オフ直後
から４発目以内の１ケ所又は２ケ所のパルス時間にて負
荷量を計測するため、各洗濯機毎の機械的、電気的なバ
ラツキによる負荷量検知のバラツキを吸収し、精度の良
い負荷量検知を行うことができる。In order to achieve the above object, the load amount detection device of the present invention energizes the motor for a predetermined period of time, detects the back electromotive force of the motor during the off period immediately after that using the terminal voltage of the motor drive capacitor, and detects this. It is converted into a DC rectangular wave pulse and the load is measured at one or two pulse times within the fourth pulse immediately after the machine turns off, so it is difficult to detect the load due to mechanical and electrical variations in each washing machine. It is possible to absorb variations and perform highly accurate load detection.
モータのオフ時における減衰時間を上記構成にて検知す
ることにより、負荷量を計測するため各洗濯機毎の機械
的・電気的バラツキを防止することは容易である。By detecting the decay time when the motor is off with the above configuration, it is easy to prevent mechanical and electrical variations between washing machines since the load amount is measured.
本発明の一実施例を図面に基づいて説明する。 An embodiment of the present invention will be described based on the drawings.
本発明の一実施例を採用した洗濯機は第１図に示すよう
に、鋼板製の外枠１内には吊り捧２およびコイルバネや
弾性ゴムからなる防振装置３によって合成樹脂製の外槽
４を吊架する構成となっている吊り棒２および防振装置
３は４個設ける。As shown in FIG. 1, a washing machine employing an embodiment of the present invention has an outer tub made of synthetic resin in an outer frame 1 made of a steel plate, and a suspension rack 2 and a vibration isolating device 3 made of coil springs or elastic rubber. Four hanging rods 2 and four vibration isolators 3 are provided to hang the four hanging rods 2 and vibration isolators 3.
洗濯するための水を溜める外槽４内には、合成樹脂製の
洗濯兼脱水槽５を回転自在に設ける。洗濯兼脱水槽５に
は多数の脱水孔５ａを設け、中央底部にはパルスセータ
若しくはアジテータからなる回転体６を回転可能に設け
る、洗い作業、およびすすぎ作業時には洗濯兼脱水槽５
を静止させ回転体６を時計方向および反時計方向に回転
させる。A washing/drying tank 5 made of synthetic resin is rotatably provided in an outer tank 4 that stores water for washing. The washing and dehydration tank 5 is provided with a large number of dehydration holes 5a, and a rotating body 6 consisting of a pulse sweater or an agitator is rotatably provided at the center bottom of the washing and dehydration tank 5 during washing and rinsing operations.
is kept stationary and the rotating body 6 is rotated clockwise and counterclockwise.
また脱水運転時は洗濯兼脱水槽を一方向に回転させる１
回転体６および、洗濯兼脱水槽の回転は。Also, during dehydration operation, the washing and dehydration tank is rotated in one direction.
The rotation of the rotating body 6 and the washing and dehydrating tank.
駆動部ＷＬ７により行なわれる。This is performed by drive section WL7.
駆動装置７はモータ８とこのモータ８の回転を、回転体
６若しくは洗濯兼脱水槽５に伝達するためのプーリ９ａ
やベルト９ｂからなる伝達手段９と洗いおよびすすぎ時
に回転体６のみを回転させたりあるいは、脱水時に洗濯
兼脱水槽５を回転させたりするクラッチ装置１０とその
切換を行なうソレノイド７ａと排水を司どる排水装置１
２とからなる。The drive device 7 includes a motor 8 and a pulley 9a for transmitting the rotation of the motor 8 to the rotating body 6 or the washing and dehydrating tank 5.
A clutch device 10 that rotates only the rotating body 6 during washing and rinsing or rotates the washing and dewatering tank 5 during dewatering, a solenoid 7a that performs switching, and a clutch device 10 that controls the drainage. Drainage device 1
It consists of 2.
駆動装置７は外槽４の底面に鋼板製の支持板１５を用い
て固定する。外槽４には外槽４内の水の圧力を水位セン
サー２６に伝達するＰ、Ｓチューブ２７を接続する導入
口４ｃが設けである。The drive device 7 is fixed to the bottom surface of the outer tank 4 using a support plate 15 made of a steel plate. The outer tank 4 is provided with an inlet 4c to which a P and S tube 27 for transmitting the pressure of water in the outer tank 4 to a water level sensor 26 is connected.
外枠１の上部には洗濯物を投入する投入口１９ａとコン
トローラ等の電気部品を収納する操作箱１９ｂとを形成
した合成樹脂製のトップカバー１９が設けである。投入
口１９ａには合成樹脂製のフタ２０を設ける。A top cover 19 made of synthetic resin is provided at the top of the outer frame 1, and has an input port 19a for loading laundry and an operation box 19b for housing electrical components such as a controller. A lid 20 made of synthetic resin is provided on the inlet 19a.
操作箱１９ｂの上面には操作パネル２１が取付けてあり
、操作箱１９ｂ内には給水電磁弁２４を設ける。An operation panel 21 is attached to the upper surface of the operation box 19b, and a water supply solenoid valve 24 is provided inside the operation box 19b.
操作箱１９ｂに配置した水位センサー２６は外槽４内の
水の圧力を検品することにより、規定水位まで水がたま
ったかどうか判定する。水位センサー２６にはコア、コ
イル、ばねなどから構成される。A water level sensor 26 disposed in the operation box 19b determines whether water has accumulated to a specified water level by inspecting the pressure of water in the outer tank 4. The water level sensor 26 is composed of a core, a coil, a spring, and the like.
洗濯、すすぎ、脱水等を制御するコントローラ部は収納
箱３１内に配置する。A controller unit that controls washing, rinsing, dehydration, etc. is arranged inside the storage box 31.
操作パネル２１には、電源スイツチボタン２９および外
部操作スイッチ３０が配置されている。A power switch button 29 and an external operation switch 30 are arranged on the operation panel 21.
第２図は操作パネル２１を示したものである。FIG. 2 shows the operation panel 21. As shown in FIG.
以上の構成において、電源スイツチボタン２９を押して
電源スィッチをＯＮＬ、、外部操作スイッチ３ｏの［セ
ンサー（標準）」ボタンを押すと、コントローラからの
信号で、給水電磁弁２６に通電され、洗濯兼脱水槽内に
給水される。この時ソレノイド７ａにも通電され脱水状
態となり、モ−夕には０．５秒０Ｎ−４秒ＯＦＦで通電
され洗濯兼脱水槽はゆるやかな回転で一方向に回転し、
槽内の洗濯物に均一に給水の水が掛かるようにしている
。In the above configuration, when the power switch button 29 is pressed to turn the power switch ONL, and the [Sensor (Standard)] button of the external operation switch 3o is pressed, the water supply solenoid valve 26 is energized by a signal from the controller, and it can be used for washing and dewatering. Water is supplied into the tank. At this time, the solenoid 7a is also energized to enter the dehydration state, and the motor is energized for 0.5 seconds 0N and 4 seconds OFF, causing the washing/dehydration tank to slowly rotate in one direction.
This ensures that the laundry in the tub is evenly sprayed with water.
この様な構成とすることにより槽内の衣類は湿布と乾布
が混在せず、完全湿布状態にて負荷量を検知するため、
精度向上が図れる。With this configuration, the clothes in the tank do not mix compresses and dry cloths, and the load amount is detected when the clothes are completely compressed.
Accuracy can be improved.
又、水位の最低水位までの給水を水位センサーが検知す
ると、給水電磁弁２６．ソレノイド７ａへの通電を停止
し、モータ８へ通電し撹拌を行なう。この時クラッチ装
置１ｏは脱水状態になっているため、クラッチ装５！１
０を確実に洗い状態とししかも布を傷めないために布量
検知撹拌より強く通常の撹拌より弱く反転撹拌水流０．
５秒０Ｎ−０，５秒０ＦＦ８秒間動作させた後布量検知
撹拌を行なう。Also, when the water level sensor detects water supply up to the lowest water level, the water supply solenoid valve 26. The energization to the solenoid 7a is stopped, and the motor 8 is energized to perform stirring. At this time, since the clutch device 1o is in a dehydrated state, the clutch device 5!1
In order to ensure that the 0.
After operating for 5 seconds 0N-0, 5 seconds 0FF for 8 seconds, cloth amount detection and stirring is performed.
布量検知行程は、０．４秒０Ｎ−１秒ＯＦＦの反転撹拌
を行なわせ、ＯＦＦ時に回転体６が惰性にて回転した時
のモータ８の逆起電力をモータ８駆動用コンデンサ８ａ
の端子電圧にて検知し、こ九を直流矩形波パルスに変換
し、このパルス間の時間を里を測定して布量を判定する
ものである。In the cloth amount detection process, reverse stirring is performed from 0N for 0.4 seconds to OFF for 1 second, and the back electromotive force of the motor 8 when the rotating body 6 rotates due to inertia when it is OFF is transferred to the capacitor 8a for driving the motor 8.
The amount of cloth is determined by detecting the terminal voltage, converting it into DC rectangular wave pulses, and measuring the time between these pulses.
すなわち洗濯物が多い場合は回転体６への抵抗が大きい
ため、惰性回転がさまたげられパルス間の時間ｔ１は長
くなり、洗濯物の量が少ない場合には逆にパルス間の時
間ｔ１は短くなる。パルス間の時間の計測は第３図に示
す回路で第４図に示す如く検出した両波検知のパルスの
１発目のパルス（■）と３発目のパルス（■）の立上が
り時間の幅ｔｉを計測し、これを２０回繰返し合計の時
間を予めマイコンに記憶した洗濯量と時間の関係と、比
較し、洗濯量を決定し、洗濯量に応じた水位。That is, when there is a large amount of laundry, the resistance to the rotating body 6 is large, which impedes inertia rotation and the time t1 between pulses becomes longer, and when there is a small amount of laundry, the time t1 between pulses becomes shorter. . The time between pulses is measured using the circuit shown in Figure 3, and the width of the rise time of the first pulse (■) and the third pulse (■) of the pulses detected by dual wave detection as shown in Figure 4. ti is measured, this is repeated 20 times, the total time is compared with the relationship between the amount of washing and time stored in advance in the microcomputer, the amount of washing is determined, and the water level is adjusted according to the amount of washing.
洗い、脱水時間等を自動的に設定し以降の運転を行なわ
せるものである。It automatically sets the washing, dehydration time, etc., and performs subsequent operations.
また全波検知したパルスの２発目のパルス（））と４発
目のパルス（■）の立上がり時間ｔ２を計測しても良い
。Alternatively, the rise time t2 of the second pulse ()) and the fourth pulse (■) of the full-wave detected pulses may be measured.
本実施例によればパルスの全波検知を行ない１発目と３
発目或は２発目と４発目のパルスの立上がり時間を計測
しているため、パルス変換回路に使用しているツェナー
ダイオード（■）フォトカプラ等のバラツキによるパル
ス幅のバラツキを小さくすることができる。According to this embodiment, full wave detection of the pulse is performed and the first and third shots are detected.
Since the rise time of the first or second and fourth pulses is measured, variations in pulse width due to variations in the Zener diode (■) photocoupler used in the pulse conversion circuit, etc. can be reduced. I can do it.
更に本実施例では、布量検知補正ボタンを設けてあり、
洗濯開始前（洗濯物投入前）にこのボタンを押すことに
より、水がない状態で前述の布量検知行程を行なわせパ
ルス間時間ｔ１を計測し、マイコンに予め記憶させたパ
ルス間時間ｔ１ と比較しくｔｌ ｔｔ）を補正時間
としてマイコンに記憶し、それ以降の布量検知時のパル
ス間時間ｔ１に加えることにより初期のクラッチ装＠１
０゜駆動装置７のロストルクのバラツキモータ８．コン
デンサ８ａの電気的特性および、パルス検知のためのツ
ェナーダイオード（■）のバラツキ等を補正できるため
精度の良い布量の計測を行なわせることができる。Furthermore, in this embodiment, a cloth amount detection correction button is provided.
By pressing this button before starting washing (before loading laundry), the above-mentioned cloth amount detection process is performed without water, and the inter-pulse time t1 is measured, and the inter-pulse time t1 stored in advance in the microcomputer is Comparatively, tl tt) is stored in the microcomputer as a correction time, and added to the inter-pulse time t1 when detecting the amount of cloth thereafter.
0° Drive device 7 loss torque variation motor 8. Since variations in the electrical characteristics of the capacitor 8a and the Zener diode (■) for pulse detection can be corrected, the amount of cloth can be measured with high accuracy.
他の実施例として布量検知時のパルス時間ｔ１の計測を
回転体６の時計方向回転と反時計方向回転時の各々で行
ない、各々の計測時間の合計をマイコンに記憶しいずれ
の値も予めマイコンで決められた値以上であれば各位を
合計し計測値とし、決められた値以下の場合には異常と
してブザーランプの点滅により表示することにより安全
性を確保できる。As another example, the pulse time t1 when detecting the amount of cloth is measured each time the rotating body 6 rotates clockwise and counterclockwise, and the total of each measurement time is stored in the microcomputer, and both values are set in advance. Safety can be ensured by adding up each value and making the measured value if it is above a value determined by the microcomputer, and by indicating an abnormality by blinking a buzzer lamp if it is below the determined value.
第５図は本発明他の実施例を示す回路で第６図はその出
力波形を示した図であり、この回路では出力パルスは半
波整流された出力の側のみとなる。FIG. 5 is a circuit showing another embodiment of the present invention, and FIG. 6 is a diagram showing its output waveform. In this circuit, the output pulse is only on the half-wave rectified output side.
第３図の回路の余波検知方式によれば、直流矩形波パル
ス変換時のレベルを決めるスレッシュホールド電圧を低
くした場合に出力 の側パルスと呂力■側パルスが重な
り連続した出力となる場合があるが、本実施例では半波
検知方式であるためスレッシュホールド電圧を波形のゼ
ロクロスまで下げてもパルス変換を行なうことができる
ためスレッシュホールド電圧のバラツキの影響を受けず
精度の高い布量検知方式とできる。According to the aftereffect detection method of the circuit shown in Figure 3, when the threshold voltage that determines the level during DC square wave pulse conversion is lowered, the output side pulse and the power side pulse may overlap, resulting in a continuous output. However, since this embodiment uses a half-wave detection method, pulse conversion can be performed even if the threshold voltage is lowered to the zero crossing of the waveform, so it is not affected by variations in the threshold voltage and has a highly accurate cloth amount detection method. It can be done.
本発明によれば、モータを駆動しオフした直後の減衰時
間の初期に負荷量を計測するため、非常に精度の高い負
荷量検知ができる。又負荷量に応じた洗濯時間およびす
すぎ時間や水位を制御することにより、省資源・寄手間
の洗濯機の開発が図れる。According to the present invention, since the load amount is measured at the beginning of the decay time immediately after the motor is driven and turned off, it is possible to detect the load amount with very high accuracy. In addition, by controlling the washing time, rinsing time, and water level according to the amount of load, it is possible to develop a washing machine that saves resources and requires less laundry.
第１図は全自動洗濯機の断面図、第２図は操作パネル図
、第３図は負荷量検知の一実施例の回路図、第４図は第
３図で検知した出力図、第５図は負荷量検知の一実施例
の回路図、第６図は第５図で検知した出力図である。
６・・・回転体、７ａ・・・ソレノイド、８・・・モー
タ。
８ａ・・・コンデンサ、１０・・・クラッチ装置、２１
・・・操作パネル、２６・・・給水電磁弁、２９・・・
電源スイ地２図
予乾１今刻
残時間圭ホ
水＊切換
帛］口
モータＯＦＦFigure 1 is a sectional view of a fully automatic washing machine, Figure 2 is a diagram of the operation panel, Figure 3 is a circuit diagram of an example of load detection, Figure 4 is an output diagram detected in Figure 3, and Figure 5 is a diagram of the output detected in Figure 3. The figure is a circuit diagram of one embodiment of load amount detection, and FIG. 6 is an output diagram detected in FIG. 5. 6... Rotating body, 7a... Solenoid, 8... Motor. 8a... Capacitor, 10... Clutch device, 21
...Operation panel, 26...Water supply solenoid valve, 29...
Power switch 2 Figure 1 Pre-drying 1 Remaining time Keiho water * Switching screen] Mouth motor OFF
Claims (1)
このモータへの通電制御を行う制御手段を備え、前記制
御手段は前記モータに所定時間通電しその直後のオフ時
間内におけるモータの減衰時間により負荷量を判定する
ものにおいて、出力波形の同一出力側波形の減衰パルス
幅により負荷量を判定する洗濯機の負荷量検知装置。 ２、特許請求の範囲第１項において、パルス出力を半波
出力として、減衰パルス幅により負荷量を判定する洗濯
機の負荷量検知装置。 ３、特許請求の範囲第１項において、パルス出力を０ク
ロス検知として、減衰パルス幅により負荷量を判定する
洗濯機の負荷量検知装置。 ４、特許請求の範囲第１項において、減衰パルス幅の４
発目以内で計測することを特徴とする洗濯機の負荷量検
知装置。[Claims] 1. A motor that drives a washing and dehydrating tank or a stirring blade;
The control means includes a control means for controlling energization of the motor, and the control means determines the load amount based on the decay time of the motor within the OFF time immediately after the motor is energized for a predetermined period of time, and the control means determines the load amount based on the decay time of the motor within the off time immediately after the energization. A washing machine load amount detection device that determines the load amount based on the attenuation pulse width of the waveform. 2. The load amount detection device for a washing machine according to claim 1, which determines the load amount based on the attenuated pulse width, with the pulse output being a half-wave output. 3. The load amount detection device for a washing machine according to claim 1, which determines the load amount based on the attenuated pulse width by detecting the pulse output as a zero cross. 4. In claim 1, the attenuation pulse width is 4.
A washing machine load detection device that measures the amount within the first load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1107658A JP2547448B2 (en) | 1989-04-28 | 1989-04-28 | Load detection device for washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1107658A JP2547448B2 (en) | 1989-04-28 | 1989-04-28 | Load detection device for washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02286196A true JPH02286196A (en) | 1990-11-26 |
| JP2547448B2 JP2547448B2 (en) | 1996-10-23 |
Family
ID=14464749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1107658A Expired - Fee Related JP2547448B2 (en) | 1989-04-28 | 1989-04-28 | Load detection device for washing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2547448B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05123485A (en) * | 1991-10-22 | 1993-05-21 | Hitachi Ltd | Method for indicating aimed amount of detergent for washing-machine and device therefor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10007594A1 (en) | 2000-02-18 | 2001-08-23 | Fischer Artur Werke Gmbh | Holder for a beverage container |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62176492A (en) * | 1986-01-30 | 1987-08-03 | シャープ株式会社 | Washing article amount detector of washing machine |
| JPS63318995A (en) * | 1987-06-24 | 1988-12-27 | 松下電器産業株式会社 | Load quantity detector of washing machine |
| JPS6415095A (en) * | 1987-07-09 | 1989-01-19 | Matsushita Electric Ind Co Ltd | Cloth amount detector of washing machine |
-
1989
- 1989-04-28 JP JP1107658A patent/JP2547448B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62176492A (en) * | 1986-01-30 | 1987-08-03 | シャープ株式会社 | Washing article amount detector of washing machine |
| JPS63318995A (en) * | 1987-06-24 | 1988-12-27 | 松下電器産業株式会社 | Load quantity detector of washing machine |
| JPS6415095A (en) * | 1987-07-09 | 1989-01-19 | Matsushita Electric Ind Co Ltd | Cloth amount detector of washing machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05123485A (en) * | 1991-10-22 | 1993-05-21 | Hitachi Ltd | Method for indicating aimed amount of detergent for washing-machine and device therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2547448B2 (en) | 1996-10-23 |
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