JPH0833789A - Control method of washing machine - Google Patents

Abstract

PURPOSE:To prevent the water scattering on the floor surface in a washing process, by setting either a strong water flow or a water scattering preventive water flow, when the optimum water level by a cloth amount detector at a no water condition is the highest water level, in the setting start of a strong (a muddy condition) course. CONSTITUTION:While a clothing is input in a washing-cum-dehydrating tub 5, and a power source switch button 29 is ON, a start button is pushed after a strong (a muddy condition) course is set by an external operation switch 30, and a washing machine carries out a full automatic operation. Before the water is fed in the washing-cum-dehydrating tub 5, the cloth amount is detected. That is, the counter electromotive force of a motor 8 when a rotary body 6 is rotated by its inertia when the reverse stirring is stopped is detected by the terminal voltage of a capacitor. Then, the power is fed to a water feed solenoid valve 24, and after the water is fed up to an optimum water level, a washing process is carried out by a strong reverse stirring according to a strong course. In this case, when the optimum water level is the highest water level, the water is fed to a prescribed water level. And after that, the cloth amount is detected again.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、水を供給する前に布量
検知を行い、水位を決定する方式における洗い，すすぎ
工程の最適制御に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to optimum control of washing and rinsing steps in a method of detecting the amount of cloth before supplying water and determining the water level.

【０００２】[0002]

【従来の技術】従来の洗濯機では、標準コースの場合、
布量検知による水位決定後、布質検知により衣類の量，
質に応じて洗い反転撹拌，すすぎ反転撹拌の強さが決定
されるが、強力（どろんこ）コース，手洗いコース等の
場合には、衣類の量，質に関係なく、あらかじめ洗い反
転撹拌，すすぎ反転撹拌の強さが決められているものが
多い。2. Description of the Related Art In a conventional washing machine, in the case of a standard course,
After the water level is determined by detecting the amount of cloth, the amount of clothes
The strength of washing reversal stirring and rinsing reversal stirring is determined according to the quality, but in the case of strong (dronko) courses, hand washing courses, etc., regardless of the quantity and quality of clothes, wash reversal stirring and rinsing reversal are performed in advance. Many of them have a fixed stirring strength.

【０００３】[0003]

【発明が解決しようとする課題】上記従来技術におい
て、水なし状態で布量検知を行い最適水位を決定する方
式では、乾布状態の衣類を基準に布量判定を行い水位を
決定するため、湿った衣類の場合には、水位が高めに設
定される傾向にある。そこで、少量の湿った衣類を投入
し運転を開始した場合には、水位が一番高い水位に自動
設定される可能性が高い。その場合、標準コースでは、
布量検知による水位決定後、布質検知により、洗い，す
すぎ反転撹拌の強さが決められるが、特に強力（どろん
こ）コースの時には、あらかじめ強い反転撹拌に設定さ
れているため、少量の衣類を一番高い水位で洗濯した場
合、衣類の量に対する撹拌水流が強すぎるため、水の中
を衣類が振り回され、水面に激しい波が立つ状態とな
る。これにより洗い撹拌中に、水が洗濯槽内から飛び出
して床面に落ち、床面を水びたしにする恐れが生じる。
また、逆に少量の衣類を一番高い水位で洗っても床面へ
の水飛散が生じない反転撹拌にすると、今度は、衣類を
多く入れた場合に、反転撹拌が弱くて洗えないといった
問題が発生するため、信頼性の面で問題が生じる。In the above prior art, the method of detecting the amount of cloth without water to determine the optimum water level determines the water level by determining the amount of cloth based on the clothes in the dry cloth state. For clothing, the water level tends to be set higher. Therefore, when a small amount of damp clothes is put in and the operation is started, there is a high possibility that the water level is automatically set to the highest water level. In that case, in the standard course,
After determining the water level by detecting the amount of cloth, the strength of washing and rinsing reversal agitation is determined by detecting the quality of the cloth, but especially in the case of a strong (dronko) course, strong reversal agitation is set in advance, so a small amount of clothing should be removed. When washed at the highest water level, the agitation water flow is too strong for the amount of clothes, so the clothes are swayed in the water and a violent wave forms on the water surface. As a result, during washing and stirring, water may jump out of the washing tub and drop on the floor surface, possibly causing the floor surface to become wet.
On the other hand, if a small amount of clothes are washed at the highest water level and the water is not splashed to the floor, the inversion agitation will not be washable when a large amount of clothes are put in. Occurs, which causes a problem in reliability.

【０００４】本発明の目的は、従来技術での欠点をなく
し、安価なコスト（ソフト対応）で信頼性の高い洗濯機
を提供することにある。An object of the present invention is to eliminate the drawbacks of the prior art and to provide a highly reliable washing machine at a low cost (software compatible).

【０００５】[0005]

【課題を解決するための手段】上記目的を達成するた
め、本発明は洗濯機に衣類を投入し、スタートボタンを
押して運転を開始した後、洗濯槽内に水を供給する前に
槽内に設置された回転体を回転させ、停止させた時の回
転体に加わる抵抗を検知することにより、衣類の量を感
知して布量判定を行い、最適水位を決定するものにおい
て、最適水位が一番高い水位判定の時には、その後、規
定水位まで水を入れ、槽内に設置された回転体を回転さ
せ、停止させた時の回転体に加わる抵抗を検知し、衣類
の量を再度感知し、その時の布量判定が一番高い水位以
外の判定の時には、洗いの反転撹拌、または、洗い，す
すぎの反転撹拌を一番高い水位判定の時に行われる反転
撹拌よりオン時間を短くした反転撹拌で洗い、または、
洗い，すすぎを行うように制御する。In order to achieve the above object, the present invention puts clothes in a washing machine, presses a start button to start operation, and then puts water into a washing tub before supplying water. By rotating the installed rotating body and detecting the resistance applied to the rotating body when the rotating body is stopped, the amount of clothes is detected to determine the amount of cloth and the optimum water level is determined. When determining the highest water level, after that, add water to the specified water level, rotate the rotating body installed in the tank, detect the resistance added to the rotating body when stopped, and sense the amount of clothes again, At that time, when the amount of cloth is judged to be other than the highest water level, reversal agitation for washing or reversal agitation for washing and rinsing is performed with a shorter on-time than the reversal agitation performed for the highest water level judgment. Wash or
Control to wash and rinse.

【０００６】[0006]

【作用】水なし状態で布量検知を行い、最適水位を決定
する方式では、衣類の状態（乾布か湿布か）に影響を受
けるが、規定水位まで水を入れた状態での布量検知で
は、衣類の状態（乾布か湿布か）による影響をあまり受
けないため、精度良く布量判定が行われる。そこで、特
に強力（どろんこ）コースでの洗濯では、少量の湿った
衣類を入れられ、最適水位が一番高い水位に設定されて
も、その後、規定水位での布量判定で実際の衣類の量に
合った判定が行われるため、一番高い水位以外の水位
（中，低，少量）に判定される。この場合には、洗い，
すすぎ反転撹拌が本来の強力（どろんこ）コース用の反
転撹拌よりオン時間を短くした反転撹拌となるため、洗
い，すすぎ中に床面に水飛散が生じる心配がない。[Function] In the method of detecting the cloth amount without water and determining the optimum water level, it is affected by the condition of the clothes (dry cloth or compress). Since the condition of the clothes (whether it is a dry cloth or a wet cloth) is not so much affected, the cloth amount can be accurately determined. Therefore, especially when washing in the heavy duty course, even if a small amount of damp clothes can be put in and the optimum water level is set to the highest water level, the actual amount of clothes will be determined by the cloth amount judgment at the specified water level. Since the judgment is made according to, the water level (medium, low, small amount) other than the highest water level is judged. In this case, wash,
Since the rinsing inversion agitation is an inversion agitation with a shorter on-time than the inversion agitation for the original strong (dronko) course, there is no risk of water splashing on the floor surface during washing and rinsing.

【０００７】また、衣類を多く入れた場合には、規定水
位での布量判定が一番高い水位となるため、洗い，すす
ぎ反転撹拌が本来の強い反転撹拌となる。よって、布動
きが悪い，汚れが落ちないといった顧客からのクレーム
の心配がない。Further, when a large amount of clothes is put in, the amount of cloth determined at the specified water level is the highest, so the washing and rinsing inversion agitation is the original strong inversion agitation. Therefore, there is no need to worry about complaints from customers that the cloth does not move smoothly and stains do not come off.

【０００８】[0008]

【実施例】本発明の実施例を図面に基づいて説明する。
本発明の一実施例を採用した洗濯機は図１に示すよう
に、鋼板性の外枠１内には吊り棒２およびコイルばねや
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。An embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a washing machine adopting an embodiment of the present invention has an outer tub made of synthetic resin in a steel plate outer frame 1 by a suspension rod 2 and a vibration isolator 3 made of a coil spring or elastic rubber. Four suspension rods 2 and four vibration damping devices 3 each configured to suspend 4 are provided.

【０００９】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。また、脱水回転時は洗濯兼脱水槽５
を一方向に回転させる。回転体６および、洗濯兼脱水槽
５の回転は、駆動装置７により行われる。In the outer tub 4 for storing water for washing,
A washing / dehydrating tank 5 made of synthetic resin is rotatably provided. A large number of dehydration holes 5a are provided in the washing / dehydrating tub 5, and a rotating body 6 composed of a pulsator or an agitator is rotatably provided in the central bottom portion. During washing and rinsing operations, the washing / dehydrating tub 5 is stopped and the rotating body 6 is rotated clockwise and counterclockwise. In addition, the washing and dewatering tub 5 is used during dewatering rotation.
Rotate in one direction. The rotation of the rotating body 6 and the washing / dehydrating tub 5 is performed by the drive device 7.

【００１０】駆動装置７はモータ８と、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，９ｂやベルト９ｃ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とその切換を行うソレノイド１１，排水を司
る排水装置１５からなる。The driving device 7 includes a motor 8, a transmission means 9 including pulleys 9a, 9b and a belt 9c for transmitting the rotation of the motor 8 to the rotating body 6 or the washing / dehydrating tub 5, and the rotating body at the time of washing and rinsing. It comprises a clutch device 10 for rotating only 6 or for rotating the washing / dehydrating tub 5 during dehydration, a solenoid 11 for switching the clutch device 10, and a drainage device 15 for draining water.

【００１１】駆動装置７は外槽４の底面に鋼板製の支持
板１２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１３に伝達するＰ．Ｓチューブ１４を接
続する導入口４ａが設けてある。The drive device 7 is fixed to the bottom surface of the outer tank 4 by using a support plate 12 made of a steel plate. The outer tank 4 transmits the pressure of water in the outer tank 4 to the water level sensor 13. An inlet 4a for connecting the S tube 14 is provided.

【００１２】外枠１の上部には洗濯物を投入する投入口
１７ａとコントローラ等の電気部品を収納する操作箱１
７ｂとを形成した合成樹脂製のトップカバー１７が設け
られてある。投入口１７ａには合成樹脂製の蓋１８を設
ける。An operation box 1 for accommodating a loading port 17a for loading laundry and electric parts such as a controller is provided on an upper portion of the outer frame 1.
7b and a synthetic resin top cover 17 are provided. A lid 18 made of synthetic resin is provided at the inlet 17a.

【００１３】操作箱１７ｂの上面には操作パネル２１が
取付けてあり、操作箱１７ｂ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 17b, and a water supply solenoid valve 24 is provided in the operation box 17b.

【００１４】操作箱１７ｂ内に配置した水位センサ１３
は外槽４内の水の圧力を検出することにより、規定水位
まで水が溜ったかどうか判定する。水位センサ１３には
コア，コイル，ばねなどから構成される。A water level sensor 13 arranged in the operation box 17b
Detects the pressure of water in the outer tub 4 to determine whether or not the water has accumulated up to the specified water level. The water level sensor 13 is composed of a core, a coil, a spring, and the like.

【００１５】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。操作パネル２１に
は、電源スイッチボタン２９および外部操作スイッチ３
０が配置されている。A controller for controlling washing, rinsing, dehydration, etc. is arranged in the storage box 31. The operation panel 21 includes a power switch button 29 and an external operation switch 3
0 is arranged.

【００１６】図２は操作パネル２１を示したものであ
る。操作パネル２１には表示部３２，外部操作スイッチ
３０，スタートボタン３３が設けられている。表示部３
２には、水位，洗い，すすぎ，脱水，予約時間，コース
設定の情報が表示される。外部操作スイッチ３０には水
位切換，洗い，すすぎ，脱水，予約時間を選択設定する
ボタン、また標準，手作り，ソフト，強力（どろんこ）
等を選択設定するセレクトスイッチのボタンが設けられ
ている。FIG. 2 shows the operation panel 21. The operation panel 21 is provided with a display unit 32, an external operation switch 30, and a start button 33. Display 3
In 2, information on water level, washing, rinsing, dehydration, reservation time, and course setting is displayed. The external operation switch 30 is a button for selecting and setting water level switching, washing, rinsing, dehydration, reserved time, and standard, handmade, soft, strong (Dronko)
A select switch button for selecting and setting the etc. is provided.

【００１７】図３は洗濯機全体の回路を簡略して示して
いる。中央処理回路３４，駆動回路３５は、コントロー
ラ部としてまとめられて洗濯機本体の収納部３１に配置
されている。モータ８，給水電磁弁２４としての給水
弁，排水装置１５としての排水弁，洗濯，すすぎ，脱水
等のセレクトスイッチ３６，水位センサ１３，布量判定
のための布量センサ３７，脱水中の異常振動防止等を図
る安全スイッチ５０をもっている。FIG. 3 schematically shows the circuit of the entire washing machine. The central processing circuit 34 and the drive circuit 35 are integrated as a controller unit and arranged in the storage unit 31 of the main body of the washing machine. Motor 8, water supply valve as water supply solenoid valve 24, drain valve as drainage device 15, select switch 36 for washing, rinsing, dehydration, etc., water level sensor 13, cloth amount sensor 37 for judging cloth amount, abnormality during dehydration It has a safety switch 50 for preventing vibration.

【００１８】図４は布量判定を行う布量センサ３７の回
路を示している。洗濯機の回転体６および洗濯兼脱水槽
５の回転駆動を行うモータ８は進相用のコンデンサ８ａ
をもっている。ＦＬＳ３８，３９は、モータ８の回転方
向を切り換えるスイッチである。コンデンサ８ａの両端
に抵抗４０，４１，ツェナダイオード４２を直列接続し
ている。抵抗４１に発光トランジスタ４３を並列接続し
ている。発光トランジスタ４３の出力は波形整形用のト
ランジスタ４４のベースに入れている。トランジスタ４
４の出力を中央処理回路３４のマイコンに取り込んでい
る。FIG. 4 shows a circuit of the cloth amount sensor 37 for judging the cloth amount. A motor 8 for rotationally driving the rotating body 6 and the washing / dehydrating tub 5 of the washing machine is a phase advancing capacitor 8a.
Have. FLSs 38 and 39 are switches for switching the rotation direction of the motor 8. Resistors 40 and 41 and a Zener diode 42 are connected in series to both ends of the capacitor 8a. A light emitting transistor 43 is connected in parallel with the resistor 41. The output of the light emitting transistor 43 is put in the base of a transistor 44 for waveform shaping. Transistor 4
The output of No. 4 is taken into the microcomputer of the central processing circuit 34.

【００１９】以上の構成において、洗濯機の動作を説明
すると、衣類を投入し、電源スイッチボタン２９を入に
して、外部操作スイッチ３０により強力（どろんこ）コ
ースを設定し、スタートボタン３３を押すと、全自動運
転を実行する。The operation of the washing machine having the above structure will be described. When the clothes are thrown in, the power switch button 29 is turned on, a strong course is set by the external operation switch 30, and the start button 33 is pushed. , Perform fully automatic operation.

【００２０】まず、最初に洗濯兼脱水槽５内に水を供給
する前に布量検知を実行する。これは、０.５秒オン−
１.０秒オフの反転撹拌を行わせ、停止時に回転体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、これを直
流短形波パルスに変換し、このパルス間の時間ｔ₁ を測
定して布量を判定するものである。すなわち、衣類が多
い場合、または、湿った衣類の場合には、回転体６への
抵抗が大きいため、惰性回転が妨げられパルス間の時間
ｔ₁ は長くなり、衣類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図４
に示す回路で検出した両波検知のパルスの１発目のパル
ス（イ）と３発目のパルス（ロ）の立上り時間の幅ｔ₁
を計測し（図５）、これを３回繰り返した内の反時計方
向の２回の合計時間を５倍した時間をあらかじめマイコ
ンに記憶した衣類量と時間の関係と比較することによ
り、布量を判定し、最適水位を自動設定する。First, before the water is supplied into the washing / dehydrating tank 5, the amount of cloth is detected. This is 0.5 seconds on-
The counter electromotive force of the motor 8 when the rotor 6 is rotated by inertia at the time of stop is set to the motor 8,
The amount of cloth is determined by detecting the terminal voltage of the driving capacitor 8a, converting this into a DC short-wave pulse, and measuring the time t ₁ between these pulses. That is, in the case of a large amount of clothes or in the case of damp clothes, the resistance to the rotating body 6 is large, so that inertial rotation is hindered and the time t ₁ between pulses becomes long, and when the amount of clothes is small. On the contrary, the time t ₁ between the pulses becomes shorter. Figure 4 shows the measurement of the time between pulses.
The rise time width t _{1 of the first} pulse (a) and the third pulse (b) of the double-wave detection pulse detected by the circuit shown in FIG.
(Fig. 5) was measured (Fig. 5), and the time obtained by multiplying the total time of 2 times in the counterclockwise direction out of 3 times by 5 times was compared with the amount of clothes stored in the microcomputer in advance and the amount of cloth To determine the optimum water level automatically.

【００２１】次に給水電磁弁２４に通電され、最適水位
まで給水が行われた後、強力（どろんこ）コース用に前
もって設定されている強い反転撹拌１.２秒オン−０.６
秒オフ（強力水流）で洗い工程が実行される。ここで、
少量の湿った衣類を入れられて洗濯が行われた場合、少
量でも重量が重いため、布量検知で回転体６への抵抗が
大きくなり、最適水位が一番高い水位に設定される可能
性が高い。これにより、一番高い水位で少量衣類が強い
反転撹拌１.２秒オン−０.６秒オフ(強力水流)で洗濯さ
れた場合に、衣類の量に対する反転撹拌が強すぎるた
め、水が洗濯兼脱水槽５から飛び出し、床面を濡らす不
具合が生じる。Next, after the water supply solenoid valve 24 is energized to supply water to the optimum water level, strong reverse agitation 1.2 seconds on-0.6 preset for the strong course is used.
The washing process is executed with the second off (strong water flow). here,
If a small amount of damp clothes is put into the laundry and the laundry is carried out in a small amount, the weight of the cloth is heavy, and the resistance to the rotating body 6 increases due to the detection of the amount of cloth. Is high. As a result, when a small amount of clothes are washed at the highest water level with strong reverse agitation 1.2 seconds on-0.6 seconds off (strong water flow), the reverse agitation is too strong for the amount of clothes, so the water is washed. Also, the problem of jumping out of the dehydration tank 5 and wetting the floor surface occurs.

【００２２】また、前もって一番高い水位で少量衣類を
洗濯しても水飛散が生じない反転撹拌に設定すると、逆
に多くの衣類を入れた場合に、今度は布動きが悪くな
り、汚れが落ちないという不具合が生じる。Further, if the reverse agitation is set so that even if a small amount of clothes is washed at the highest water level in advance, water will not be scattered. Conversely, when many clothes are put in, the movement of the cloth will worsen and stains will become dirty. The problem of not falling occurs.

【００２３】そこで本発明では、図６のフローチャート
に示すように、スタートボタン３３オン後、洗濯兼脱水
槽５内に水を供給する前に布量検知撹拌を行い（ステッ
プ５１）、自動設定された最適水位が一番高い水位か否
かの判定を行い（ステップ５２）、一番高い水位の時に
は、給水電磁弁２４に通電され、規定水位まで給水され
る（ステップ５３）。規定水位までの給水を水位センサ
１３が検知すると、給水電磁弁２４への通電を停止し、
モータ８へ通電し、０.５秒オン−１.０秒オフの反転撹
拌を行わせ、再度、布量検知を実行する（ステップ５
４）。Therefore, in the present invention, as shown in the flow chart of FIG. 6, after the start button 33 is turned on, before the water is supplied into the washing / dehydrating tub 5, the amount of cloth is detected and agitated (step 51) to automatically set. It is determined whether or not the optimum water level is the highest (step 52), and when the water level is the highest, the water supply solenoid valve 24 is energized to supply water up to the specified water level (step 53). When the water level sensor 13 detects the water supply up to the specified water level, the energization of the water supply solenoid valve 24 is stopped,
The motor 8 is energized, the reversal stirring is performed for 0.5 seconds on-1.0 seconds off, and the cloth amount detection is executed again (step 5).
4).

【００２４】ここでは、反転撹拌を１０回行い、その合
計時間をあらかじめマイコンに記憶した衣類量と時間の
関係と比較し、布量判定を行っている。この布量検知撹
拌により、再度、判定された最適水位が一番高い水位か
否かの判定を行い（ステップ５５）、一番高い水位以外
の水位（中，低，少量）判定の時には、強力（どろん
こ）コース用に設定されている強い反転撹拌１.２秒オ
ン−０.６秒オフよりオン時間を短くした反転撹拌１.０
秒オン−０.６秒オフ（水飛散防止水流）で洗い工程が
実行（ステップ５８）されるように制御し、また、一番
高い水位判定の時には、強い反転撹拌１.２秒オン−０.
６秒オフ（強力水流）で洗い工程を行う（ステップ５
７）ように制御する。Here, the inversion stirring is performed 10 times, and the total time is compared with the relationship between the amount of clothes and the time stored in advance in the microcomputer to determine the amount of cloth. By this cloth amount detection agitation, it is judged again whether or not the judged optimum water level is the highest water level (step 55), and when the water level other than the highest water level (medium, low, small amount) is judged, it is strong. (Dronko) Strong reversal agitation set for course 1.2 seconds on-0.6 seconds off Reversal agitation 1.0 with on time shorter than off
Control is performed so that the washing process is executed (step 58) with second on-0.6 second off (water splash prevention water flow), and when the highest water level is determined, strong reversal stirring 1.2 second on-0. .
Perform the washing process with 6 seconds off (strong water flow) (Step 5
7) Control as follows.

【００２５】これにより、少量の湿った衣類が入れら
れ、水なし状態での布量検知判定が一番高い水位になっ
ても、その後の規定水位での布量検知では、実際の衣類
の量に合った判定が行われるため、一番高い水位以外の
水位（中，低，少量）判定となる。よって、洗い工程が
１.０秒オン−０.６秒オフ（水飛散防止水流）で実行さ
れるため、一番高い水位で少量衣類が洗濯されても、床
面への水飛散の心配がない。また、衣類が多い場合に
は、規定水位での布量検知が一番高い水位判定となり、
強力（どろんこ）コース用の強い反転撹拌１.２秒オン
−０.６秒オフ（強力水流）で洗い工程が行われるた
め、布動きが良く、汚れ落ちが悪いといった心配がな
い。As a result, even if a small amount of damp clothes is put in and the highest water level is detected in the detection of the amount of cloth in the absence of water, the amount of cloth actually detected is not detected in the subsequent detection of the amount of cloth. Since the judgment is made according to, the water level (medium, low, small amount) other than the highest water level is judged. Therefore, since the washing process is performed for 1.0 seconds on-0.6 seconds off (water splash prevention water flow), even if a small amount of clothes is washed at the highest water level, there is a risk of water splashing on the floor surface. Absent. Also, when there is a lot of clothes, the detection of the amount of cloth at the specified water level is the highest water level judgment,
Strong inversion agitation for strong (dronko) course The washing process is performed with 1.2 seconds on-0.6 seconds off (strong water flow), so there is no concern about good cloth movement and poor stain removal.

【００２６】また、すすぎ工程も同様に、少量の湿った
衣類を入れられて一番高い水位に設定された場合には、
前もって設定されている反転撹拌よりオン時間を短くし
た弱い反転撹拌ですすぎ工程を行うように制御する。Similarly, in the rinsing step, when a small amount of damp clothes is put in and the water level is set to the highest level,
Control is performed so that the rinsing process is performed with a weak inversion agitation that has a shorter on-time than the preset inversion agitation.

【００２７】[0027]

【発明の効果】本発明によれば、特に強力（どろんこ）
コース設定スタートにおいて、水なし状態での布量検知
による最適水位の判定が、一番高い水位の時には、洗い
反転撹拌水流を規定水位での布量検知の判定結果によ
り、強力水流か、または、強力水流よりオン時間を短く
した水飛散防止水流のいずれかに設定するように制御す
る。EFFECTS OF THE INVENTION According to the present invention, it is particularly strong.
At the start of the course setting, when the optimum water level is determined by detecting the amount of cloth without water, when the water level is the highest, the wash reversal agitation water flow is determined to be a strong water flow, or, depending on the judgment result of the amount of cloth detection at the specified water level. Control to set to one of the water splash prevention water flows that have a shorter on-time than the strong water flow.

【００２８】これにより、少量の湿った衣類により布量
検知による最適水位判定が一番高い水位になった時に
は、水飛散防止水流になるように制御することにより、
洗い工程での床面への水飛散防止が図れ、信頼性の高い
洗濯機が提供できる。As a result, when the optimum water level judgment by the cloth amount detection reaches the highest water level due to a small amount of damp clothes, the water flow is controlled so as to prevent the water flow.
It is possible to prevent water from splashing onto the floor surface in the washing process and provide a highly reliable washing machine.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例を示す全自動洗濯機の断面
図。FIG. 1 is a sectional view of a fully automatic washing machine showing an embodiment of the present invention.

【図２】本発明の一実施例を示す操作パネルの正面図。FIG. 2 is a front view of an operation panel showing an embodiment of the present invention.

【図３】洗濯機全体のブロック図。FIG. 3 is a block diagram of the entire washing machine.

【図４】布量検知の一実施例の回路図。FIG. 4 is a circuit diagram of an embodiment of cloth amount detection.

【図５】布量センサのセンサ出力を示す波形図。FIG. 5 is a waveform diagram showing a sensor output of the cloth amount sensor.

【図６】本発明の一実施例を示すフローチャート。FIG. 6 is a flowchart showing an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

５…洗濯兼脱水槽、６…回転体、８…モータ、８ａ…コ
ンデンサ、１３…水位センサ、２１…操作パネル、２４
…給水電磁弁、２９…電源スイッチボタン、３０…外部
操作スイッチ。5 ... Washing / dehydrating tank, 6 ... Rotating body, 8 ... Motor, 8a ... Condenser, 13 ... Water level sensor, 21 ... Operation panel, 24
… Water supply solenoid valve, 29… Power switch button, 30… External operation switch.

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】洗濯機に衣類を投入し、スタートボタンを
押して運転を開始した後、洗濯槽内に水を供給する前に
槽内に設置された回転体を回転させ、停止させた時の前
記回転体に加わる抵抗を検知することにより、衣類の量
を感知して布量判定を行い、最適水位を決定するものに
おいて、最適水位が一番高い水位判定の時には、その
後、規定水位まで水を入れ、槽内に設置された前記回転
体を回転させ、停止させた時の前記回転体に加わる抵抗
を検知し、衣類の量を再度感知し、その時の布量判定が
一番高い水位以外の判定の時には、洗いの反転撹拌を一
番高い水位判定の時に行われる反転撹拌よりオン時間を
短くした反転撹拌で洗いを行うようにしたことを特徴と
する洗濯機の制御方法。1. When the clothes are put in a washing machine, the start button is pressed to start the operation, and before the water is supplied into the washing tub, the rotating body installed in the tub is rotated and stopped. By detecting the resistance applied to the rotating body, the amount of clothes is sensed to determine the amount of cloth, and the optimum water level is determined.When the optimum water level is the highest, the water level is then increased to the specified water level. Put the inside of the tank, rotate the rotating body installed in the tank, detect the resistance applied to the rotating body when stopped, and re-detect the amount of clothing, except for the highest water level at which the amount of cloth is judged The method for controlling a washing machine is characterized in that when performing the above determination, the reverse stirring of the washing is performed by the reverse stirring having a shorter ON time than the reverse stirring performed when the highest water level is determined. 【請求項２】請求項１において、洗いの反転撹拌の他
に、すすぎ反転撹拌も同じように布量判定が一番高い水
位以外の判定の時には、一番高い水位判定の時のすすぎ
反転撹拌よりオン時間を短くした反転撹拌ですすぎを行
うようにした洗濯機の制御方法。2. In addition to the reversal stirring of washing according to claim 1, when the rinsing reversal stirring is the same except when the water level is the highest water level determination, the rinse reversal stirring when the highest water level determination is performed. A washing machine control method in which rinsing is performed by reverse agitation with a shorter on-time.