JPH05253388A - Full automatic washing machine - Google Patents

Abstract

PURPOSE:To automatically correct one-sided load of washing clothes, by cancelling suspension of water supply to feed water into a washing and spin-drying tank and rotating a pulsator when the larger load than a preset load is detected on dewatering and the number becomes larger than a preset number. CONSTITUTION:When a detecting switch 17 is turned on through a lever 16 because the washing clothes are shifted to one side in the spin-drying process and hence, the vibratory system 15 including a washing and spin-drying tank 1 and a water tank 3 is largely oscillated eccentrically, a motor is put off. When the detecting switch 17 is not actuated, the load acting on a load detector 21 is judged whether it is larger or not than a preset load. In case of 'yes' when the whole vibratory system 15 is vertically oscillated, the detected times of the load detector 21 are accumulated and when the detected times exceed the preset times, also the motor is put off. After the spin-drying tank ceases to rotate, water is supplied into the washing and spin-drying tank 1 and the pulsator 2 is rotated to correct the washing clothes shifted to one side. After correction, spin-drying is again started.

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、脱水行程において洗濯
物の片寄りにより脱水振動が大きくなったとき片寄り修
正機能を有する全自動洗濯機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fully-automatic washing machine having a function of correcting an unevenness when the dehydration vibration becomes large due to the unevenness of the laundry in the dehydration process.

【０００２】[0002]

【従来の技術】一般に、全自動洗濯機は、洗濯し排水し
た後に脱水行程へと移ったとき、洗濯兼脱水槽内で洗濯
物が片寄っている場合には、その片寄りで回転がアンバ
ランスになり、洗濯兼脱水槽や水槽を含めた振動系全体
が偏心して大きく振れ回る。2. Description of the Related Art Generally, in a fully automatic washing machine, when the laundry is drained after being washed and drained, and if the laundry is deviated in the washing and dewatering tub, the rotation is unbalanced due to the deviation. Therefore, the entire vibration system including the washing / dehydrating tank and the water tank is eccentrically swung around.

【０００３】従来の全自動洗濯機は、振動系の偏心によ
る移動量を検知スイッチにより検知してモータをオフ
し、再度給水して短時間洗濯動作を行い、片寄った洗濯
物をほぐしていた。In a conventional fully automatic washing machine, the amount of movement due to the eccentricity of the vibration system is detected by a detection switch, the motor is turned off, water is supplied again, and a short-time washing operation is performed to loosen the unbalanced laundry.

【０００４】[0004]

【発明が解決しようとする課題】このような従来の全自
動洗濯機では、排水後の洗濯兼脱水槽内での洗濯物の片
寄り状態が図４(a)に示す状態であれば、洗濯兼脱水槽
や水槽を含めた振動系全体が偏心して大きく振れ回り、
その移動量を検知スイッチにより検知することができる
が、図４(b)の(1)の場合には、洗濯物の片寄りの山の部
分が洗濯兼脱水槽の中心よりわずかに外れた状態である
ため、脱水回転が始まってすぐの振動系全体の横振れが
最も大きい、通常１〜２Ｈｚの一次共振点では振動系が
さほど振れず検知スイッチは動作しない。しかし、この
状態のまま脱水がつづいていくと、脱水回転が上がるに
つれて洗濯物は図４(b)の(2)の状態になり、(1)の場合
よりアンバランス状態は大きくなってくるが、脱水回転
数もかなり高くなってくるため、外枠より防振装置を介
して垂下支持された振動系全体は横振れよりも縦振れが
大きくなってくる。そうなると、防振装置のばねは断続
的に全圧縮状態を繰り返し、検知スイッチは動作せず製
品は大きく振動し、複雑な動きの末、遂には振動系が外
枠に当たって製品が移動を始めしばらく移動した後、や
っと検知スイッチが動作して脱水が停止するという問題
を有していた。In such a conventional fully-automatic washing machine, if the state of one side of the laundry in the washing / dehydrating tank after drainage is as shown in FIG. The entire vibration system including the dewatering tank and the water tank is eccentric and swirls around,
The amount of movement can be detected by the detection switch, but in the case of (1) in Fig. 4 (b), the mountain part of the laundry that is offset to one side is slightly off the center of the washing and dehydration tub. Therefore, the lateral vibration of the entire vibration system is largest immediately after the spin-drying rotation starts, usually at the primary resonance point of 1 to 2 Hz, the vibration system does not shake so much and the detection switch does not operate. However, if dewatering continues in this state, the laundry will be in the state of (2) in Fig. 4 (b) as the spinning speed increases, and the unbalanced state will be larger than in the case of (1). Since the number of rotations for dehydration also becomes considerably high, the entire vibration system suspended from the outer frame via the vibration isolator has a larger vertical shake than a horizontal shake. If this happens, the spring of the anti-vibration device will intermittently repeat the full compression state, the detection switch will not operate, and the product will vibrate greatly, and after a complicated movement, the vibration system will eventually hit the outer frame and the product will start moving and move for a while. After that, there was a problem that the detection switch finally operated and the dehydration stopped.

【０００５】本発明は上記課題を解決するもので、洗濯
物の片寄りの山の部分が洗濯兼脱水槽の中心よりわずか
に外れた状態で、一次共振点で振動系がさほど振れずに
検知スイッチが動作せず、脱水回転数がかなり高くなる
ことにより、振動系全体が横振れよりも縦振れが大きく
なったとき、洗濯物の片寄りを修正し脱水をスムーズに
行うことを目的としている。The present invention solves the above-mentioned problems, and detects the vibration system at the primary resonance point without much swinging when the one-sided mountain portion of the laundry is slightly displaced from the center of the washing / dehydrating tub. When the vertical vibration of the whole vibration system becomes larger than the horizontal vibration due to the switch not operating and the spin-drying speed becoming considerably high, the purpose is to correct the deviation of the laundry and to perform the dehydration smoothly. ..

【０００６】[0006]

【課題を解決するための手段】本発明は上記目的を達成
するために、吊り棒の上部に設け洗濯物を含む水槽全体
の荷重を検知する荷重検知手段と、洗濯兼脱水槽に給水
する給水弁、モータなどの動作を制御する制御手段とを
備え、前記制御手段は、脱水行程において前記荷重検知
手段に予め設定された荷重Ｆｍ以上の荷重が印加され、
かつその回数が予め設定された回数Ｎｍより多くなった
とき、前記荷重検知手段からの信号により脱水を停止し
て洗濯兼脱水槽に給水し、前記パルセータを回転させて
洗濯物の片寄りを修正させる構成としたことを課題解決
手段としている。In order to achieve the above object, the present invention provides a load detecting means which is provided on an upper part of a hanging rod and detects a load of an entire water tank including laundry, and a water supply which supplies water to a washing and dehydrating tank. A control unit for controlling the operation of a valve, a motor, etc., wherein the control unit applies a load equal to or more than a preset load Fm to the load detection unit in the dehydration process,
And when the number of times exceeds the preset number Nm, the dehydration is stopped by the signal from the load detecting means to supply water to the washing / dehydrating tank, and the pulsator is rotated to correct the deviation of the laundry. The configuration that allows it is the means for solving the problem.

【０００７】[0007]

【作用】本発明は上記した課題解決手段により、洗濯物
の片寄りの山の部分が洗濯兼脱水槽の中心よりわずかに
外れた状態で、脱水回転が始まり、脱水回転数もかなり
高くなることにより横振れよりも縦振れが大きくなる
と、直ちに脱水を停止し再度給水してパルセータを回転
させ、洗濯物の片寄りを修正することができる。According to the present invention, by the above-mentioned means for solving the problems, the spin-drying rotation starts and the spin-drying rotational speed becomes considerably high in a state where the one-sided mountain portion of the laundry is slightly displaced from the center of the washing and spin-drying tub. When the vertical shake becomes larger than the horizontal shake, the dehydration is immediately stopped, the water is supplied again, and the pulsator is rotated to correct the deviation of the laundry.

【０００８】[0008]

【実施例】以下、本発明の一実施例を図１および図２参
照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

【０００９】図に示すように、洗濯兼脱水槽１は、中央
底部にパルセータ２を回転自在に配設してある。水槽３
は洗濯兼脱水槽１を内包し、この水槽３の外底部には基
板４を固着し、駆動用のモータ５、排水弁６、洗濯兼脱
水切替機構７などが配設されている。基板４の外縁部は
防振装置８、吊り棒９を介して外枠１０の上部角隅より
垂下支持されている。外枠１０の上部には上部カバー１
１を設け、給水弁１２、電源スイッチ１３、制御装置１
４、および洗濯物の片寄りにより洗濯兼脱水槽１や水槽
３を含めた振動系１５全体が偏心して大きく振れ回った
とき、その移動量をレバー１６により検知する検知スイ
ッチ１７などを配設している。制御装置１４はモータ
５、排水弁６、給水弁１２などを制御する。防振装置８
は防振管１８と、その防振管１８と摺動し減衰効果をだ
す摺動体１９とばね２０とで構成している。荷重検知手
段２１は、吊り棒９の上部に設け、洗濯物を含む水槽３
全体の荷重を検知するもので、外枠１０の各上部角隅に
設けている。回転検知手段２２はモータ５の回転数を検
知するものである。As shown in the figure, the washing / dehydrating tub 1 has a pulsator 2 rotatably arranged at the center bottom. Aquarium 3
Includes a washing / dehydrating tub 1, a substrate 4 is fixed to the outer bottom portion of the water tub 3, and a driving motor 5, a drain valve 6, a washing / dehydrating switching mechanism 7 and the like are provided. The outer edge portion of the substrate 4 is suspended from the upper corners of the outer frame 10 via a vibration isolator 8 and a suspension rod 9. An upper cover 1 is provided on the outer frame 10.
1, a water supply valve 12, a power switch 13, a control device 1
4, and when the entire vibration system 15 including the washing / dewatering tub 1 and the water tub 3 is eccentrically swung around due to the deviation of the laundry, a detection switch 17 for detecting the movement amount by the lever 16 is provided. ing. The control device 14 controls the motor 5, the drain valve 6, the water supply valve 12, and the like. Anti-vibration device 8
Is composed of a vibration-proof tube 18, a sliding body 19 that slides on the vibration-proof tube 18 and produces a damping effect, and a spring 20. The load detecting means 21 is provided on the upper part of the hanging bar 9 and includes a water tank 3 containing laundry.
It detects the entire load and is provided at each upper corner of the outer frame 10. The rotation detecting means 22 detects the number of rotations of the motor 5.

【００１０】制御装置１４はマイクロコンピュータより
なる制御手段２３と、操作パネル２４内に収納されたキ
ースイッチ、表示装置などからなる操作表示手段２５
と、制御手段２３からの信号によりモータ５、排水弁
６、給水弁１２などを制御するパワースイッチング手段
２６と、布量検知手段２７、水位検知手段２８、記憶手
段２９、汚れ検知手段３０などで構成している。３１は
交流電源で、３２はモータ５の進相コンデンサである。The control device 14 comprises a control means 23 comprising a microcomputer and an operation display means 25 comprising a key switch, a display device and the like housed in an operation panel 24.
And a power switching means 26 for controlling the motor 5, the drain valve 6, the water supply valve 12, etc. by a signal from the control means 23, a cloth amount detecting means 27, a water level detecting means 28, a storing means 29, a dirt detecting means 30, etc. I am configuring. Reference numeral 31 is an AC power source, and 32 is a phase advancing capacitor of the motor 5.

【００１１】上記構成において図３を参照しながら動作
を説明すると、まず、ステップ１００で脱水を開始する
と、ステップ１０１でタイマーＴスタートの後、ステッ
プ１０２で排水弁６が動作して排水がはじまる。ステッ
プ１０３で排水が終了すると、ステップ１０４でモータ
５がオンして脱水が始まる。そして、そのとき洗濯物に
片寄りがあり洗濯兼脱水槽１や水槽３を含めた振動系１
５全体が偏心して大きく振れ回ったときは、その移動量
をレバー１６により検知し、ステップ１０５で検知スイ
ッチ１７が動作してサブルーチンへ移り、ステップ１０
９でモータ５をオフする。そして、ステップ１１０から
布片寄り修正行程がスタートすると、まず、ステップ１
１１で給水弁１２が動作して給水がはじまる。そしてス
テップ１１２で水位検知手段２８により給水が終了する
と、ステップ１１３でモータ５をオンしてパルセータ２
を回転させる。パルセータ２を一定時間回転させ、ステ
ップ１１４で布片寄り修正が終了すると、再びステップ
１００に戻り、脱水をはじめる。The operation of the above structure will be described with reference to FIG. 3. First, when dehydration is started in step 100, the timer T is started in step 101, and then the drain valve 6 is operated in step 102 to start draining. When the drainage is completed in step 103, the motor 5 is turned on in step 104 to start dehydration. Then, at that time, there is a bias in the laundry, and the vibration system 1 including the washing / dehydrating tank 1 and the water tank 3
When the whole 5 is eccentric and swings largely, the amount of movement is detected by the lever 16, and the detection switch 17 operates in step 105 to move to the subroutine, and in step 10
At 9, the motor 5 is turned off. Then, when the cloth piece deviation correction process starts from step 110, first, step 1
At 11, the water supply valve 12 operates to start water supply. When the water level detecting means 28 finishes supplying water in step 112, the motor 5 is turned on in step 113 to turn on the pulsator 2
To rotate. When the pulsator 2 is rotated for a certain period of time and the cloth piece deviation correction is completed in step 114, the process returns to step 100 again to start dehydration.

【００１２】ステップ１０５で検知スイッチ１７が動作
しないときは、ステップ１０６で荷重検知手段２１に印
加される荷重Ｆｎが予め設定された荷重Ｆｍより大きい
かどうかを検知し、小さければステップ１０７へ進み、
そのまま終了まで脱水をつづけた後、次行程へ進む。ス
テップ１０６で荷重検知手段２１に印加される荷重Ｆｎ
が予め設定された荷重Ｆｍより大きいとき、つまりこの
ときは図４(b)の(1)の場合のように、洗濯物の片寄りの
山の部分が洗濯兼脱水槽１の中心よりわずかに外れた状
態で、脱水回転が始まってすぐの振動系１５全体の横振
れが最も大きい通常１〜２Ｈｚの一次共振点で振動系が
さほど振れずに検知スイッチ１７が動作せず、徐々に図
４(b)の(2)のようにアンバランス状態が大きくなってき
て、脱水回転数もかなり高くなってくることにより、外
枠１０より防振装置８を介して垂下支持された振動系１
５全体が横振れよりも縦振れが大きくなり、防振装置８
のばね１８が断続的に全圧縮状態を繰り返して荷重検知
手段２１に衝撃的な荷重が印加されたときであるが、こ
のときはステップ１０８にてそのＦｍより大きい荷重Ｆ
ｎの回数を累積し、その数Ｎｎが予め設定された数Ｎｍ
より少ないときは、支障なく脱水できる洗濯物の片寄り
状態であり、再びステップ１０４へ戻り脱水をつづけ
る。Ｎｎが予め設定された数Ｎｍより多いときは、洗濯
物の片寄りがかなり大きい状態であり、ステップ１０９
でモータ５をオフし、ステップ１１０より前述の布片寄
り修正行程へと進み、布片寄りを修正した後再び脱水行
程へと進む。When the detection switch 17 is not operated in step 105, it is detected in step 106 whether the load Fn applied to the load detection means 21 is larger than a preset load Fm, and if it is smaller, the process proceeds to step 107,
Continue dehydration until the end, then proceed to the next step. The load Fn applied to the load detection means 21 in step 106
Is larger than the preset load Fm, that is, at this time, as in the case of (1) of FIG. 4 (b), the mountain part of the laundry is slightly offset from the center of the washing / dehydrating tub 1. In the disengaged state, the lateral vibration of the entire vibration system 15 immediately after the spin-drying rotation starts is the largest, and the detection system 17 does not operate at the primary resonance point of normally 1 to 2 Hz, the detection switch 17 does not operate, and the vibration gradually increases as shown in FIG. As shown in (2) of (b), the unbalanced state becomes large and the spin-drying speed also becomes considerably high, so that the vibration system 1 suspended from the outer frame 10 via the vibration isolator 8 is supported.
The vertical vibration of the whole 5 becomes larger than the horizontal vibration.
This is when the spring 18 intermittently repeats the full compression state and a shocking load is applied to the load detecting means 21. At this time, in Step 108, the load F larger than Fm is applied.
The number of times n is accumulated, and the number Nn is a preset number Nm.
When the number is smaller, it means that the laundry can be dehydrated without any problem, and the laundry is returned to step 104 to continue dehydration. When Nn is greater than the preset number Nm, the deviation of the laundry is considerably large, and the step 109
Then, the motor 5 is turned off, and the process proceeds from step 110 to the above-described cloth piece deviation correction process. After correcting the cloth piece deviation, the process proceeds to the dehydration step again.

【００１３】このように本実施例によれば、脱水行程に
おいて荷重検知手段２１に予め設定された荷重Ｆｍ以上
の荷重が印加され、かつその回数が予め設定された回数
Ｎｍより多くなったとき、荷重検知手段２１からの信号
により脱水を停止して洗濯兼脱水槽１に給水し、パルセ
ータ２を回転させて洗濯物の片寄りを修正させる構成と
しているので、図４(b)の(1)の場合のように、洗濯物の
片寄りの山の部分が洗濯兼脱水槽１の中心よりわずかに
外れた状態で、脱水回転が始まってすぐの振動系１５全
体の横振れが最も大きい通常１〜２Ｈｚの一次共振点で
振動系１５がさほど振れずに検知スイッチ１７が動作せ
ず、アンバランス状態は大きくなってきて、脱水回転数
もかなり高くなってくることにより、外枠より防振装置
を介して垂下支持された振動系１５全体が横振れよりも
縦振れが大きくなってきて、防振装置８のばね１８が断
続的に全圧縮状態を繰り返しても、製品が大きく振動し
たり移動したりする前に、直ちに脱水を停止して再度給
水してパルセータ２を回転させて、洗濯物の片寄りを修
正し脱水をスムーズに行うことができる。As described above, according to this embodiment, when a load equal to or more than the preset load Fm is applied to the load detecting means 21 in the dehydration process and the number of times exceeds the preset number Nm, Since the dehydration is stopped by the signal from the load detecting means 21 to supply water to the washing / dehydrating tub 1 and the pulsator 2 is rotated to correct the unevenness of the laundry, (1) in FIG. 4 (b). As in the case of No. 1, when the one-sided mountain portion of the laundry is slightly off the center of the washing / dehydrating tank 1, the lateral vibration of the entire vibration system 15 immediately after the spin-drying rotation starts is the largest 1. The vibration system 15 does not swing so much at the primary resonance point of up to 2 Hz, the detection switch 17 does not operate, the unbalanced state becomes large, and the spin-drying rotation speed also becomes considerably high. Supported drooping through Even if the vertical vibration of the entire vibration system 15 becomes larger than the lateral vibration and the spring 18 of the vibration isolator 8 intermittently repeats the full compression state, before the product vibrates greatly or moves, The dehydration can be stopped immediately, water can be supplied again, and the pulsator 2 can be rotated to correct the unevenness of the laundry and smoothly perform the dehydration.

【００１４】[0014]

【発明の効果】以上の実施例から明らかなように本発明
によれば、吊り棒の上部に設け洗濯物を含む水槽全体の
荷重を検知する荷重検知手段と、洗濯兼脱水槽に給水す
る給水弁、モータなどの動作を制御する制御手段とを備
え、前記制御手段は、脱水行程において前記荷重検知手
段に予め設定された荷重Ｆｍ以上の荷重が印加され、か
つその回数が予め設定された回数Ｎｍより多くなったと
き、前記荷重検知手段からの信号により脱水を停止して
洗濯兼脱水槽に給水し、前記パルセータを回転させて洗
濯物の片寄りを修正させる構成としたから、洗濯物の片
寄りの山の部分が洗濯兼脱水槽の中心よりわずかに外れ
た状態で、一次共振点で振動系がさほど振れずに検知ス
イッチが動作せず、脱水回転数がかなり高くなることに
より、振動系全体が横振れよりも縦振れが大きくなった
とき、洗濯物の片寄りを修正し、脱水をスムーズに行う
ことができる。As is apparent from the above embodiments, according to the present invention, the load detecting means provided on the upper part of the hanging bar for detecting the load of the entire water tank including the laundry, and the water supply for supplying water to the washing / dehydrating tank. A control means for controlling the operation of a valve, a motor, etc., wherein the control means applies a load equal to or more than a preset load Fm to the load detection means in the dehydration process, and the number of times is a preset number of times. When it exceeds Nm, the signal from the load detecting means stops the dehydration to supply water to the washing / dehydrating tub, and the pulsator is rotated to correct the unevenness of the laundry. When the one-sided mountain part is slightly off the center of the washing / dehydrating tub, the vibration system does not swing so much at the primary resonance point, the detection switch does not operate, and the dehydration rotation speed increases considerably, causing vibration. Entire system When horizontal deflection vertical deflection than is increased, correct the deviation of the laundry, it is possible to perform dehydration smoothly.

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

【図１】本発明の一実施例の全自動洗濯機の縦断面図FIG. 1 is a vertical sectional view of a fully automatic washing machine according to an embodiment of the present invention.

【図２】同全自動洗濯機の制御装置のブロック回路図FIG. 2 is a block circuit diagram of a controller of the fully automatic washing machine.

【図３】同全自動洗濯機の要部フローチャートFIG. 3 is a flowchart of a main part of the fully automatic washing machine.

【図４】(a)(b) 一般の全自動洗濯機の洗濯物の片寄り
の状態説明図[Fig. 4] (a) and (b) an explanatory view of a state in which laundry is biased in a general automatic washing machine

【符号の説明】[Explanation of symbols]

１ 洗濯兼脱水槽 ２ パルセータ ３ 水槽 ４ 基板 ５ モータ ８ 防振装置 ９ 吊り棒 １０ 外枠 １２ 給水弁 ２１ 荷重検知手段 ２３ 制御手段 1 Washing / Dehydrating Tank 2 Pulsator 3 Water Tank 4 Substrate 5 Motor 8 Vibration Isolator 9 Suspension Rod 10 Outer Frame 12 Water Supply Valve 21 Load Detection Means 23 Control Means

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 中央底部にパルセータを回転自在に設け
た洗濯兼脱水槽と、前記洗濯兼脱水槽を内包する水槽
と、前記水槽の外底部に固着されその外縁部を防振装置
および吊り棒を介して外枠の上部角隅より垂下支持され
た基板と、前記吊り棒の上部に設け洗濯物を含む前記水
槽全体の荷重を検知する荷重検知手段と、前記洗濯兼脱
水槽に給水する給水弁、モータなどの動作を制御する制
御手段とを備え、前記制御手段は、脱水行程において前
記荷重検知手段に予め設定された荷重Ｆｍ以上の荷重が
印加され、かつその回数が予め設定された回数Ｎｍより
多くなったとき、前記荷重検知手段からの信号により脱
水を停止して洗濯兼脱水槽に給水し、前記パルセータを
回転させて洗濯物の片寄りを修正させる構成とした全自
動洗濯機。1. A washing / dehydrating tub having a pulsator rotatably provided at the center bottom, a water tub containing the washing / dehydrating tub, and an outer edge portion fixed to the outer bottom of the water tub, a vibration isolator and a hanging rod. Substrate suspended from the upper corners of the outer frame via, load detecting means for detecting the overall load of the aquarium including the laundry provided on the hanging bar, and water supply for supplying water to the washing and dehydrating tub A control means for controlling the operation of a valve, a motor, etc., wherein the control means applies a load equal to or more than a preset load Fm to the load detection means in the dehydration process, and the number of times is a preset number of times. A fully automatic washing machine configured to stop dehydration by supplying a signal from the load detecting means to supply water to the washing / dehydrating tank when the number exceeds Nm, and to rotate the pulsator to correct unevenness of laundry.