JPH05253382A - Full automatic washing machine - Google Patents

Full automatic washing machine

Info

Publication number
JPH05253382A
JPH05253382A JP4055346A JP5534692A JPH05253382A JP H05253382 A JPH05253382 A JP H05253382A JP 4055346 A JP4055346 A JP 4055346A JP 5534692 A JP5534692 A JP 5534692A JP H05253382 A JPH05253382 A JP H05253382A
Authority
JP
Japan
Prior art keywords
washing
motor
spin
brake
safety switch
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
Application number
JP4055346A
Other languages
Japanese (ja)
Other versions
JP3108952B2 (en
Inventor
Satoru Okanishi
悟 岡西
Kenichi Akasaka
兼一 赤坂
Kouji Mitsushiro
浩二 光城
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 Holdings Corp
Original Assignee
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP04055346A priority Critical patent/JP3108952B2/en
Publication of JPH05253382A publication Critical patent/JPH05253382A/en
Application granted granted Critical
Publication of JP3108952B2 publication Critical patent/JP3108952B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

PURPOSE:To reduce the reaction force to a vibratory system and prevent the shocks and deflections to the external frame, by immediately stopping the drive motor when a safety switch actuated due to unbalanced clothes or so is turned on and braking the motor after a specified delay interval. CONSTITUTION:When a safety switch 19 is actuated in the spin-drying process due to unbalanced clothes or other causes, the motor 5 driving a washing and spin-drying machine 1 (referred as spin-drying tank hereinafter) is immediately turned off to leave the spin-drying tank running only by its inertia. Thereafter a drain valve 6 is put off after a specified delay interval (t) and further, the brake contained in a washing and spin-drying changeover structure 7 is actuated. The delay time (t) is preset to be about two seconds for instance in such an extent that the vibrating block does not collide with the external frame 10 because of the reaction, when the revolution of the spin-drying tank 1 is decelerated and halted instantaneously by the brake. And this delay time (t) is preset to be a specified interval within which the revolution reaches the equivalent one to the resonance point of the spin-drying tank 1 and others after the motor 5 is turned on.

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、脱水時に衣類のアンバ
ランスなどにより作動する安全スイッチを有した全自動
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 safety switch which is activated by imbalance of clothes when dehydrating.

【０００２】[0002]

【従来の技術】従来の全自動洗濯機は、図２および図３
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を回転自在に配している。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が固着され、
駆動用モータ５，排水弁６，ブレーキを内装した洗濯兼
脱水切替機構７などを配設しており、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
下支持している。外枠10の上部に上部カバー11を設け、
給水弁12，電源スイッチ13，制御装置14などを配設して
いる。制御装置14はマイクロコンピュータよりなる信号
制御手段15と、操作パネル16内におさめられたキースイ
ッチおよび表示装置などからなる操作表示手段17と、信
号制御手段15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18と、信
号制御手段15には、安全スイッチ１９からの信号およ
び、モータ５の回転数を検知する回転検知手段２０など
からの信号が入力されている。なお、21は交流電源、22
はモータ５の進相コンデンサーである。信号制御手段15
は脱水行程において、最初の排水状態で排水弁６をＯＮ
状態にして、洗濯兼脱水槽１内の水を排水し、この排水
が終わった後にモータ５をＯＮにする。この後、モータ
５を数秒間隔でＯＮ−ＯＦＦさせて間欠運転し、衣類の
水を徐々に抜いていく。この場合、モータ５の回転数は
回転検知手段20でその都度検知して信号制御手段15に入
力されている。その後、モータ５のＯＮ状態を続行させ
て、連続脱水運転し、衣類を脱水した後、モータ５のみ
ＯＦＦ状態にして、洗濯兼脱水槽１を慣性運転させ、ほ
ぼ回転が止まった時点に排水弁６をＯＦＦ状態にすると
ともに、ブレーキをかけて脱水行程を終了させる。一般
に、全自動洗濯機においては、洗濯し排水した後に脱水
行程へと移るが、この時、洗濯兼脱水槽１の内部に衣類
が均一に分布されることはまれで、不均一分布をなした
まま脱水作用が行なわれ、この衣類の不均一は回転物の
アンバランスとなって振動を発生させる原因となってい
た。いま吊り棒９および防振装置８等の防振系により支
持された構成を振動系と称し、この振動系および防振系
にて必然的に構成されるものに固有振動数というものが
ある。もし、脱水時において、布のアンバランスが大き
いときに、振動系に生じる振動数と、前記固有振動数と
が合致した場合、振動系の振幅は極めて大きくなり、例
えば、上下にはね上がったり、外枠10に衝突したり、あ
るいは、回転軸が危険速度時の破損を招くという通常共
振点と称する状態となる。このような現象を防止するた
めに、振動系の振幅が異常に大きいときには図４の行程
図のように安全スイッチ19により、モータ５および排水
弁６への通電を切って洗濯兼脱水槽１への駆動力を解除
するとともに、ブレーキをかけて直ちに洗濯兼脱水槽１
を停止させて危険のないようにしていた。しかし、上記
のように安全スイッチ19を作動させ、洗濯兼脱水槽１へ
の駆動力を解除するとともに、ブレーキをかけて直ちに
洗濯兼脱水槽１を停止させた場合には、安全性は確保さ
れるが、振動系が外枠10に衝突し、衝突音や，外枠10の
移動が生じるという問題があったため、図５の行程図の
ように、安全スイッチ19が作動したときにモータ５への
通電を止め、遅延時間ｔを経過した後排水弁６への通電
を止めることにより、洗濯兼脱水槽１への駆動力が解除
された後、惰性回転した後しばらくしてからブレーキを
かけるようにしていた。2. Description of the Related Art A conventional fully automatic washing machine is shown in FIGS.
As shown in, the washing / dehydrating tub 1 has a pulsator 2 rotatably arranged at the center bottom. The aquarium 3 is a washing and dehydrating tub 1.
And the substrate 4 is fixed to the outer bottom of the water tank 3,
A washing / dehydration switching mechanism 7 having a drive motor 5, a drain valve 6 and a brake installed therein is disposed, and the outer edge of the substrate 4 is provided with an anti-vibration device 8 and a suspension rod 9 at an upper corner of an outer frame 10. Supports hanging from the corner. An upper cover 11 is provided on the upper part of the outer frame 10,
A water supply valve 12, a power switch 13, a control device 14, etc. are arranged. The control device 14 includes a signal control means 15 including a microcomputer, an operation display means 17 including a key switch and a display device stored in the operation panel 16, and a motor 5 and a drain valve 6 according to signals from the signal control means 15. A signal from the safety switch 19 and a signal from the rotation detecting means 20 for detecting the number of rotations of the motor 5 are input to the power switching means 18 for controlling the water supply valve 12 and the like and the signal control means 15. .. 21 is an AC power source, 22
Is a phase advancing capacitor of the motor 5. Signal control means 15
Turns on the drain valve 6 in the first drainage state in the dehydration process
In this state, the water in the washing / dehydrating tank 1 is drained, and the motor 5 is turned on after the drainage is completed. After that, the motor 5 is turned on and off at intervals of several seconds for intermittent operation to gradually drain water from the clothes. In this case, the rotation speed of the motor 5 is detected by the rotation detection means 20 each time and input to the signal control means 15. After that, the motor 5 is kept in the ON state to continuously dehydrate the clothes, and after the clothes are dehydrated, only the motor 5 is turned OFF, and the washing / dehydrating tub 1 is inertially operated. 6 is turned off and the brake is applied to end the dehydration process. Generally, in a fully automatic washing machine, the clothes are washed, drained, and then moved to the dehydration process. At this time, the clothes are rarely evenly distributed in the washing / dehydrating tub 1, and a non-uniform distribution is formed. As a result, the clothes are dehydrated, and the unevenness of the clothes causes an unbalance of the rotating object and causes vibration. A structure supported by a vibration-proof system such as the suspension rod 9 and the vibration-damping device 8 is called a vibration system, and a natural frequency is an inevitable component of the vibration system and the vibration-proof system. If the unbalance of the cloth during dehydration is large and the frequency generated in the vibration system matches the natural frequency, the amplitude of the vibration system becomes extremely large, for example, jumps up and down, It is in a state called a normal resonance point where it collides with the outer frame 10 or causes the rotary shaft to be damaged at a critical speed. In order to prevent such a phenomenon, when the amplitude of the vibration system is abnormally large, the safety switch 19 turns off the power supply to the motor 5 and the drain valve 6 to the washing / dehydrating tub 1 as shown in the stroke diagram of FIG. The driving force is released and the brake is applied immediately to the washing and dehydration tub 1
Was stopped so that there was no danger. However, when the safety switch 19 is operated as described above to release the driving force to the washing / dehydrating tub 1 and the brake is immediately applied to stop the washing / dehydrating tub 1, safety is ensured. However, since the vibration system collides with the outer frame 10, causing collision noise and movement of the outer frame 10, as shown in the stroke diagram of FIG. Is stopped, and after the delay time t has passed, the drain valve 6 is stopped from being powered so that the driving force to the washing / dehydrating tub 1 is released, and the brake is applied after a while after inertial rotation. I was doing

【０００３】[0003]

【発明が解決しようとする課題】ところが、上記のよう
に構成された全自動洗濯機では、例えば、図６のように
脱水途中の高速回転時ａ点で、何らかの理由で安全スイ
ッチが作動し、しかも、その直後に全自動洗濯機の蓋を
開けた場合には、内部の洗濯兼脱水槽への駆動力は解除
されているが、洗濯兼脱水槽は遠心力の働きにより、遅
延時間ｔのしばらくの間高速惰性回転した後、ブレーキ
動作域Ｂ1で減速し停止しており、停止するまでは非常
に危険な状態であり、誤って手などが巻きこまれる恐れ
があるなどの問題点があった。本発明は上記問題を鑑
み、衣類のアンバランスが生じて安全スイッチが作動し
たときに、振動系の本体への衝突や，本体自身の移動を
無くし、しかも、安全スイッチの作動後の安全性を確保
する全自動洗濯機を提供することを目的とするものであ
る。However, in the fully automatic washing machine configured as described above, for example, as shown in FIG. 6, the safety switch is activated for some reason at a point a during high-speed rotation during dehydration, Moreover, when the lid of the fully automatic washing machine is opened immediately after that, the driving force to the internal washing / dehydrating tub is released, but the washing / dehydrating tub has a delay time t due to the centrifugal force. After a high speed inertial rotation for a while, it slows down and stops in the brake operation range B 1 , and it is a very dangerous state until it stops, and there is a problem that there is a risk of accidentally getting your hands caught. It was In view of the above problems, the present invention eliminates the collision of the vibration system with the main body and the movement of the main body when the safety switch is activated due to the unbalance of the clothes, and the safety after the safety switch is operated. The purpose is to provide a fully automatic washing machine to secure.

【０００４】[0004]

【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、脱水時に衣類のアンバランスなどにより作
動する安全スイッチと、洗濯兼脱水槽を駆動するモータ
と、前記洗濯兼脱水槽を停止させるブレーキを内装した
洗濯兼脱水切替機構とを備えるとともに、前記モータの
回転数を検知する回転検知手段と、マイクロコンピュー
タよりなる信号制御手段とを備え、前記信号制御手段
は、前記安全スイッチが作動したときに前記洗濯兼脱水
槽を駆動するモータを直ちにＯＦＦ状態にし、その後遅
延時間(ｔ)を経過した後に前記ブレーキを作動させるこ
と、前記遅延時間(ｔ)を設定する範囲は前記モータをＯ
Ｎにして前記洗濯兼脱水槽などの振動共振点と同等の回
転数Ｖ1に達するまでの所定時間ＴA内に行うようにした
ものである。In order to achieve the above object, the present invention provides a safety switch that operates due to unbalance of clothes during dehydration, a motor that drives a washing / dehydrating tub, and the washing / dehydrating tub. In addition to a washing and dehydration switching mechanism having a brake for stopping, a rotation detecting means for detecting the number of rotations of the motor, and a signal control means composed of a microcomputer are provided, and the signal control means includes the safety switch. When the motor is operated, the motor for driving the washing / dehydrating tub is immediately turned off, and then the brake is operated after the delay time (t) has elapsed. The range for setting the delay time (t) is the motor. O
It is set to N and performed within a predetermined time T A until the rotation speed V 1 equivalent to the vibration resonance point of the washing / dehydrating tank is reached.

【０００５】[0005]

【作用】本発明は上記した課題解決手段により、安全ス
イッチが作動した後洗濯兼脱水槽をしばらく惰性運転さ
せ、運動エネルギーが小さくなった後でブレーキをかけ
ると、ブレーキにより消費されるエネルギーは小さくて
済み、従って、振動系に設けられている洗濯兼脱水切替
機構(ブレーキ機構を有する)からの振動系への反作用力
が減少し、その力による振動系の揺れが小さく、外枠へ
の衝突や移動がなくなる。また、遅延時間ｔを設定する
範囲を、前記洗濯兼脱水槽などの振動共振点と同等の回
転数Ｖ1に達するまでの所定時間ＴA内にすることによ
り、洗濯兼脱水槽の回転が、高速回転域までに達してお
らず、安全スイッチが作動した直後に全自動洗濯機の蓋
を開けても、洗濯兼脱水槽には余り慣性力が働いていな
いため惰性回転をせずすぐ停止し、誤って手などが巻き
こまれる恐れがなくなる。According to the present invention, when the safety switch is actuated and the washing / dehydrating tub is coasted for a while after the safety switch is actuated and the kinetic energy is reduced and the brake is applied, the energy consumed by the brake is reduced. Therefore, the reaction force from the washing / dehydration switching mechanism (which has a braking mechanism) provided in the vibration system to the vibration system is reduced, and the vibration of the vibration system due to that force is small, and it collides with the outer frame. And no movement. Further, by setting the range of setting the delay time t within the predetermined time T A until the rotation speed V 1 equivalent to the vibration resonance point of the washing / dehydrating tub or the like is reached, the rotation of the washing / dehydrating tub can be Even if the lid of the fully automatic washing machine is opened immediately after the safety switch is actuated because it has not reached the high-speed rotation range, there is not so much inertial force in the washing and dehydration tub, so it stops immediately without inertial rotation. , There is no risk of accidentally getting your hands caught.

【０００６】[0006]

【実施例】以下、本発明の一実施例における全自動洗濯
機の構成は図２および図３の従来例と同じである。図１
は本発明の一実施例における脱水行程における時間と脱
水回転数の関係を示すものである。本実施例の動作を図
１および図２，図３により説明する。なお、従来例と同
じ部品は同じ番号で示し、説明は省略する。本実施例に
おいて、この脱水行程の途中で衣類のアンバランスなど
により、安全スイッチ19が作動したときには信号制御手
段15に信号が入力され、信号制御手段15からの信号でモ
ータ５を直ちにＯＦＦ状態にして、洗濯兼脱水槽１を慣
性運転させる。その後、遅延時間ｔを経過した後排水弁
６をＯＦＦにしてブレーキをかける。この遅延時間ｔ
は、洗濯兼脱水槽１の回転数が減速されブレーキをかけ
て急停止した場合に、その反作用で振動系が外枠10に衝
突しない程度の時間、例えば、２秒程度に設定してい
る。ただし、この遅延時間ｔはモータ５をＯＮにして前
記洗濯兼脱水槽１などの振動共振点と同等の回転数Ｖ1
に達するまでの所定時間ＴA内に設定されている。従っ
て、洗濯兼脱水槽１などの振動共振点と同等の回転数Ｖ
1に達するまでだと、洗濯兼脱水槽１の回転数が高速回
転域までに達しておらず、全自動洗濯機の蓋を開けても
洗濯兼脱水槽１には余り慣性力が働いていないため、遅
延時間ｔを設けていても惰性回転はせずすぐ停止でき
る。また反対に、洗濯兼脱水槽１などの振動共振点を越
えた回転数、例えば、間欠脱水後の連続脱水運転時に
は、遅延時間ｔが設けられていないために、連続脱水の
ａ点で安全スイッチ19が作動した時には、信号制御手段
15からの信号でモータ５を直ちにＯＦＦ状態にすると共
に、排水弁６をＯＦＦにしてブレーキ動作域Ｂ1でブレ
ーキをかけ、洗濯兼脱水槽１を停止させるようになって
いる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a fully automatic washing machine according to an embodiment of the present invention is the same as that of the conventional example shown in FIGS. Figure 1
Shows the relationship between the time in the dehydration process and the dehydration rotation speed in one embodiment of the present invention. The operation of this embodiment will be described with reference to FIGS. 1, 2 and 3. The same parts as those in the conventional example are indicated by the same numbers, and the description thereof will be omitted. In the present embodiment, a signal is input to the signal control means 15 when the safety switch 19 is actuated due to an imbalance of clothes during the dehydration process, and the signal from the signal control means 15 immediately turns off the motor 5. Then, the washing / dehydrating tub 1 is inertially operated. Then, after the delay time t has elapsed, the drain valve 6 is turned off and the brake is applied. This delay time t
Is set to such a time that the vibration system does not collide with the outer frame 10 due to the reaction when the rotation speed of the washing / dehydrating tub 1 is decelerated and the brake is suddenly stopped, for example, about 2 seconds. However, the delay time t is equal to the vibration resonance point of the washing / dehydrating tank 1 when the motor 5 is turned on and the rotation speed V 1 is the same.
It is set within a predetermined time T A until it reaches. Therefore, the rotation speed V is equivalent to the vibration resonance point of the washing / dehydrating tank 1 and the like.
By the time it reaches 1, the rotation speed of the washing / dehydrating tub 1 has not reached the high-speed rotation range, and even if the lid of the fully automatic washing machine is opened, the washing / dehydrating tub 1 does not exert much inertial force. Therefore, even if the delay time t is provided, the inertial rotation does not occur and the vehicle can be stopped immediately. On the contrary, at the number of rotations exceeding the vibration resonance point of the washing / dehydrating tank 1 or the like, for example, at the time of continuous dehydration operation after intermittent dehydration, since the delay time t is not provided, the safety switch is operated at point a of continuous dehydration. When 19 is activated, signal control means
Signal immediately while the OFF state of the motor 5 at from 15, the drain valve 6 is turned OFF braked by brake operation range B 1, and is adapted to stop the washing and dewatering tank 1.

【０００７】[0007]

【発明の効果】上記実施例から明らかなように本発明
は、脱水時に衣類のアンバランスなどにより作動する安
全スイッチと、洗濯兼脱水槽を駆動するモータと、前記
洗濯兼脱水槽を停止させるブレーキとを備えるととも
に、前記モータの回転数を検知する回転検知手段と、マ
イクロコンピュータよりなる信号制御手段とを備え、前
記信号制御手段は、前記安全スイッチが作動したときに
前記洗濯兼脱水槽を駆動するモータを直ちにＯＦＦ状態
にし、その後、遅延時間ｔを経過した後に前記ブレーキ
を作動させるとともに、前記モータをＯＮにして、前記
洗濯兼脱水槽などの振動共振点と同等の回転数Ｖ1に達
するまでの所定時間ＴA内に、前記遅延時間ｔを設定す
ることにより、安全スイッチが作動した後洗濯兼脱水槽
をしばらく惰性運転させ、運動エネルギーを小さくなっ
た所でブレーキをかけるため、ブレーキにより消費され
るエネルギーは小さくて済み、従って、振動系に設けら
れている洗濯兼脱水切替機構(ブレーキ機構を有する)か
らの振動系への反作用力が減少し、その力による振動系
の揺れが小さく、外枠への衝突や移動がなくなる。ま
た、遅延時間ｔを設定する範囲を、前記洗濯兼脱水槽な
どの振動共振点と同等の回転数Ｖ1に達するまでの所定
時間ＴA内にすることにより、洗濯兼脱水槽の回転が高
速回転域までに達しておらず、安全スイッチが作動した
直後に、全自動洗濯機の蓋を開けても洗濯兼脱水槽には
余り慣性力が働いていないため、惰性回転をせずすぐ停
止し誤って手などが巻きこまれる恐れがなくなり、安全
でしかも衣類のアンバランスの大きいときでも異常なく
停止できるという大きな効果を奏することができる。As is apparent from the above-described embodiments, the present invention provides a safety switch that operates due to imbalance of clothes during dehydration, a motor that drives the washing / dehydrating tub, and a brake that stops the washing / dehydrating tub. And a rotation detection means for detecting the number of rotations of the motor, and a signal control means composed of a microcomputer, the signal control means driving the washing / dehydrating tub when the safety switch is activated. The motor is immediately turned off, and after the delay time t has elapsed, the brake is operated and the motor is turned on to reach the rotational speed V 1 equivalent to the vibration resonance point of the washing / dehydrating tank. By setting the delay time t within the predetermined time T A until the safety switch is activated, the washing / dehydrating tub is allowed to coast for a while. Since the brake is applied at a place where the kinetic energy becomes small, the energy consumed by the brake can be small, and therefore the washing / dehydration switching mechanism (which has the brake mechanism) provided in the vibration system can be changed to the vibration system. The reaction force of is reduced, the vibration of the vibration system due to the force is small, and collision and movement to the outer frame are eliminated. Further, the delay time t is set within a predetermined time T A until the rotation speed V 1 equivalent to the vibration resonance point of the washing / dehydrating tub or the like is reached, so that the washing / dehydrating tub rotates at high speed. Even if the lid of the fully automatic washing machine is opened immediately after the safety switch has been actuated since the rotation range has not been reached, there is not so much inertial force acting on the washing / dehydrating tub, so there is no inertial rotation and the machine immediately stops. There is no danger of accidentally getting your hands caught, and it is possible to bring about a great effect that it is safe and can be stopped without abnormality even when the unbalance of clothes is large.

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

【図１】本発明の一実施例における全自動洗濯機の脱水
行程における時間と脱水回転数の関係を表す図である。FIG. 1 is a diagram showing a relationship between time and a dewatering rotation speed in a dewatering process of a fully automatic washing machine according to an embodiment of the present invention.

【図２】従来の全自動洗濯機の断面図である。FIG. 2 is a sectional view of a conventional fully automatic washing machine.

【図３】従来の全自動洗濯機のブロック図である。FIG. 3 is a block diagram of a conventional fully automatic washing machine.

【図４】従来の脱水行程の運転行程を示す図である。FIG. 4 is a diagram showing an operation process of a conventional dehydration process.

【図５】従来の脱水行程の運転行程を示す図である。FIG. 5 is a diagram showing an operation process of a conventional dehydration process.

【図６】従来の脱水行程における時間と脱水回転数の関
係を表す図である。FIG. 6 is a diagram showing a relationship between time and a dehydration rotation speed in a conventional dehydration process.

【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、 ６…排水弁、 ７…洗濯兼
脱水切替機構、 ８…防振装置、 ９…吊り棒、10…外
枠、 11…上部カバー、 12…給水弁、 13…電源スイ
ッチ、 14…制御装置、 15…信号制御手段、 16…操
作パネル、 17…操作表示手段、 18…パワースイッチ
ング手段、 19…安全スイッチ、 20…回転検知手段、
21…交流電源、 22…進相コンデンサー。1 ... Washing / dehydrating tank, 2 ... Pulsator, 3 ... Water tank,
4 ... Substrate, 5 ... Motor, 6 ... Drainage valve, 7 ... Washing / dehydration switching mechanism, 8 ... Anti-vibration device, 9 ... Suspension bar, 10 ... Outer frame, 11 ... Top cover, 12 ... Water supply valve, 13 ... Power supply Switch, 14 ... Control device, 15 ... Signal control means, 16 ... Operation panel, 17 ... Operation display means, 18 ... Power switching means, 19 ... Safety switch, 20 ... Rotation detection means,
21 ... AC power supply, 22 ... Phase advancing capacitor.

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 脱水時に衣類のアンバランスなどにより
作動する安全スイッチと、洗濯兼脱水槽を駆動するモー
タと、前記洗濯兼脱水槽を停止させるブレーキを内装し
た洗濯兼脱水切替機構とを備えるとともに、前記モータ
の回転数を検知する回転検知手段と、マイクロコンピュ
ータよりなる信号制御手段とを備え、前記信号制御手段
は、前記安全スイッチが作動したときに前記洗濯兼脱水
槽を駆動するモータを直ちにＯＦＦ状態にし、その後、
遅延時間(ｔ)を経過した後に前記ブレーキを作動させる
こと、前記遅延時間(ｔ)を設定する範囲は前記モータを
ＯＮにして前記洗濯兼脱水槽などの振動共振点と同等の
回転数Ｖ1を達するまでの所定時間ＴA内であることを特
徴とする全自動洗濯機。1. A safety switch that operates due to an unbalance of clothes during dewatering, a motor that drives a washing / dehydrating tub, and a washing / dehydrating switching mechanism that incorporates a brake that stops the washing / dehydrating tub. , A rotation detection means for detecting the number of rotations of the motor, and a signal control means composed of a microcomputer, wherein the signal control means immediately drives the motor for driving the washing / dehydrating tub when the safety switch is activated. Turn it off, then
The brake is operated after the delay time (t) has passed, and the range in which the delay time (t) is set is such that the motor is turned on and the rotation speed V 1 is equivalent to the vibration resonance point of the washing / dehydrating tub or the like. A fully automatic washing machine characterized by being within a predetermined time T A until reaching.
JP04055346A 1992-03-13 1992-03-13 Fully automatic washing machine Expired - Fee Related JP3108952B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04055346A JP3108952B2 (en) 1992-03-13 1992-03-13 Fully automatic washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04055346A JP3108952B2 (en) 1992-03-13 1992-03-13 Fully automatic washing machine

Publications (2)

Publication Number Publication Date
JPH05253382A true JPH05253382A (en) 1993-10-05
JP3108952B2 JP3108952B2 (en) 2000-11-13

Family

ID=12995949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP04055346A Expired - Fee Related JP3108952B2 (en) 1992-03-13 1992-03-13 Fully automatic washing machine

Country Status (1)

Country Link
JP (1) JP3108952B2 (en)

Also Published As

Publication number Publication date
JP3108952B2 (en) 2000-11-13

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