JP4206865B2 - Washing machine - Google Patents

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JP4206865B2
JP4206865B2 JP2003299592A JP2003299592A JP4206865B2 JP 4206865 B2 JP4206865 B2 JP 4206865B2 JP 2003299592 A JP2003299592 A JP 2003299592A JP 2003299592 A JP2003299592 A JP 2003299592A JP 4206865 B2 JP4206865 B2 JP 4206865B2
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dehydration
washing machine
stroke
program control
control means
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JP2005065998A (en
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克也 井澤
光市 久保
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Description

本発明は、洗濯、すすぎ、脱水行程を自動で行う洗濯機に関するものである。   The present invention relates to a washing machine that automatically performs washing, rinsing, and dehydration processes.

従来、この種の洗濯機は図５〜図９に示すような構成が一般的であった（例えば、特許文献１参照）。   Conventionally, this type of washing machine is generally configured as shown in FIGS. 5 to 9 (see, for example, Patent Document 1).

図５は特許文献１の洗濯機の縦断面図、図６は同洗濯機の安全スイッチ部縦断面図、図７は同洗濯機の脱水行程における脱水回転数と時間との関係を示す図、図８は同洗濯機の回転前の布の状態を示す図、図９は同洗濯機の回転中の布の状態を示す図である。   FIG. 5 is a longitudinal sectional view of the washing machine of Patent Document 1, FIG. 6 is a longitudinal sectional view of a safety switch portion of the washing machine, and FIG. 7 is a diagram showing a relationship between the dehydration rotation speed and time in the dehydration process of the washing machine, FIG. 8 is a diagram showing a state of the cloth before the washing machine is rotated, and FIG. 9 is a diagram showing a state of the cloth while the washing machine is rotating.

以下その構成について説明する。図５および図６に示すように洗濯機本体１は上部に上部枠体２を設け、この上部枠体２には衣類投入時に開閉する蓋３を後方で軸支している。安全スイッチ４は上部枠体２の内部に装着し、蓋３の開閉に応じてオン，オフするものである。また、安全スイッチ４は下方に脱水槽５やパルセータ６を回転自在に内包した水受け槽７の異常振動を検知する異常振動検知レバー８を備えており、製品の移動や転倒などを事前に検知し、脱水動作を止める検知機能を有している。   The configuration will be described below. As shown in FIGS. 5 and 6, the washing machine main body 1 is provided with an upper frame 2 at the upper portion, and a lid 3 that opens and closes when clothes are put on the upper frame 2 is axially supported. The safety switch 4 is mounted inside the upper frame 2 and is turned on / off according to the opening / closing of the lid 3. In addition, the safety switch 4 includes an abnormal vibration detection lever 8 that detects abnormal vibration of the water receiving tank 7 in which the dehydration tank 5 and the pulsator 6 are rotatably included. And has a detection function for stopping the dehydration operation.

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、図７に示すように脱水行程はモータのオン、オフを繰り返し行いながら洗濯物９から水分を少しずつ出し、脱水回転数をある程度まで徐々に高めて行く、いわゆる間欠脱水１０を行った後、連続脱水１１を行うのが通常である。   Generally, in a fully automatic washing machine, after washing and draining, the process proceeds to the dehydration process. As shown in FIG. 7, the dehydration process repeatedly turns the motor on and off, and gradually removes moisture from the laundry 9 to rotate the dehydration. It is usual to perform continuous dehydration 11 after performing so-called intermittent dehydration 10 in which the number is gradually increased to some extent.

脱水行程への移行時に洗濯物９がアンバランス状態になった場合、前記間欠脱水１０の初期に水受け槽７が大きく揺れ、前記安全スイッチ４の異常振動検知レバー８を叩き、洗濯物９のアンバランスを検知することができる。   When the laundry 9 is in an unbalanced state during the transition to the dehydration process, the water receiving tub 7 is greatly shaken at the initial stage of the intermittent dehydration 10, and the abnormal vibration detection lever 8 of the safety switch 4 is struck. Unbalance can be detected.

また、洗濯物９のバランスをよい状態で脱水行程に移行できるよう、洗濯行程の最後にパルセータ６を小刻みに反転しアンバランス状態を解消する水流を設けている。   Moreover, the water flow which reverses the pulsator 6 in small steps at the end of a washing process and cancels an unbalanced state is provided so that it can transfer to the dehydration process in a state with good balance of the laundry 9.

また、パルセータ６および脱水槽５を駆動するモータ１２ａとパルセータ６と脱水槽５をきりかえる切り換えクラッチ１２ｂと、洗濯、すすぎ、および脱水の各行程を制御するプログラム制御手段１３を設けている。   Further, there are provided a motor 12a for driving the pulsator 6 and the dewatering tub 5, a switching clutch 12b for switching between the pulsator 6 and the dewatering tub 5, and a program control means 13 for controlling each process of washing, rinsing and dewatering.

一方、従来から脱水行程時の洗濯物のアンバランス状態を確実に検知するための方法として、間欠脱水１０の初期に水受け槽７が安全スイッチ４の異常振動検知レバー８の方向に揺れるように、本体１内側にスポンジ１４等を貼付けて水受け槽７の揺れを調整していた。   On the other hand, as a method for reliably detecting the unbalanced state of the laundry during the dehydration process, the water receiving tub 7 swings in the direction of the abnormal vibration detection lever 8 of the safety switch 4 at the initial stage of the intermittent dehydration 10. The sponge 14 or the like was attached to the inside of the main body 1 to adjust the shaking of the water receiving tank 7.

しかし、間欠脱水１０の初期を通過すると洗濯物９のアンバランス状態を検知ができなくなる。したがって間欠脱水１０初期の後にアンバランス状態になると、水受け槽７は本体１に激しく衝突するなどの異常振動となり、洗濯機が倒れるなどの被害が発生する場合があった。
特開平５−１１５６６２号公報 However, when passing through the initial stage of intermittent dewatering 10, the unbalanced state of the laundry 9 cannot be detected. Therefore, when the imbalanced state is reached after the initial period of intermittent dehydration 10, the water receiving tank 7 becomes abnormal vibration such as violently colliding with the main body 1, and damage such as the washing machine falling may occur.
Japanese Patent Laid-Open No. 5-115662

しかしながら、このような従来の洗濯機では、洗濯行程の最後にパルセータ６を小刻みに反転し、アンバランス状態を解消する水流を設けていたが、最近は洗濯物９の多様化と脱水時間の延長化により、脱水前や途中で使用者が洗濯物９を出し入れする可能性が増加してきているので、例えば、図８に示すように、使用者が洗濯物を脱水槽５中央に高く重ねて入れたり、衣類１５の上にタオルケットなど１６の比較的大きな洗濯物を中央に投入した場合など、脱水回転数が３００ｒ／ｍｉｎ程度まで上がると、図９に示すように前記タオルケットなど１６が遠心力により脱水槽５の片側に移動し、脱水途中でアンバランス状態になり、異常振動の原因となる場合があった。   However, in such a conventional washing machine, the pulsator 6 is inverted in small steps at the end of the washing process to provide a water flow that eliminates the unbalanced state. Recently, however, the laundry 9 is diversified and the dehydration time is extended. Since the possibility of the user to put in and out the laundry 9 before and during dehydration has increased due to the conversion, for example, as shown in FIG. When a relatively large laundry such as a towel 16 is put on the center of the clothes 15 and the dewatering rotation speed is increased to about 300 r / min, the towel 16 or the like 16 is caused by centrifugal force as shown in FIG. It moved to one side of the dehydration tank 5 and was in an unbalanced state during dehydration, which could cause abnormal vibration.

本発明は、前記従来の課題を解決するもので、洗濯、すすぎ、脱水行程を自動で行う洗濯機において、洗濯物の脱水途中でのアンバランスを検知し、異常振動の発生を防止することができる洗濯機を提供することを目的とする。   The present invention solves the above-mentioned conventional problems, and in a washing machine that automatically performs washing, rinsing, and dehydration processes, it detects an imbalance during the dehydration of the laundry and prevents the occurrence of abnormal vibrations. An object is to provide a washing machine that can be used.

前記従来の課題を解決するために、本発明の洗濯機は、洗濯機本体と、前記洗濯機本体の内部に設けられた水受け槽と、前記水受け槽内に回転自在に設けられた脱水槽と、前記脱水槽を回転駆動するモータと、洗濯、すすぎ、および脱水の各行程を制御するプログラム制御手段を備え、前記プログラム制御手段は、前記脱水行程の開始時において、前記モータへの通電と通電停止とを間欠的に繰り返す第１の行程と、前記第１の行程後に前記脱水槽の回転数を０またはその近傍までに低下させる第２の行程と、前記第２の行程後に前記モータへの通電と通電停止とを間欠的に繰り返し前記脱水槽の回転数を立ち上げる第３の行程を実行するものとし、前記第１および第３の行程時にアンバランスを検知可能としたものである。 In order to solve the above-described conventional problems, a washing machine of the present invention includes a washing machine body, a water receiving tub provided inside the washing machine body, and a detachment provided rotatably in the water receiving tub. A water tank, a motor for rotationally driving the dewatering tank , and a program control means for controlling each process of washing, rinsing, and dewatering, the program control means energizing the motor at the start of the dewatering process the motor and the deenergization of the first stroke is repeated intermittently, and a second step of reducing the rotational speed of the dehydrating tank after the first stroke to 0 or near, after said second step and It is assumed that the third process of raising the rotational speed of the dehydration tank is executed intermittently by energizing and stopping the energization, and the imbalance can be detected during the first and third processes. .

これにより、脱水行程の第１の行程途中で洗濯物がアンバランス状態になった場合でも、第３の行程により検知可能となるため、洗濯物の脱水途中でのアンバランスを検知でき、異常振動の発生を防止することができるものである。   As a result, even when the laundry is unbalanced during the first stroke of the dewatering stroke, it can be detected by the third stroke. Can be prevented.

本発明の洗濯機は、洗濯、すすぎ、脱水行程を自動で行う洗濯機において、洗濯物の脱水途中でのアンバランスを検知でき、異常振動の発生を防止することができる。   The washing machine of the present invention can detect an imbalance during the dehydration of the laundry in the washing machine that automatically performs washing, rinsing, and dehydration processes, and can prevent occurrence of abnormal vibration.

第１の発明は、洗濯機本体と、前記洗濯機本体の内部に設けられた水受け槽と、前記水受け槽内に回転自在に設けられた脱水槽と、前記脱水槽を回転駆動するモータと、洗濯、すすぎ、および脱水の各行程を制御するプログラム制御手段を備え、前記プログラム制御手段は、前記脱水行程の開始時において、前記モータへの通電と通電停止とを間欠的に繰り返す第１の行程と、前記第１の行程後に前記脱水槽の回転数を０またはその近傍までに低下させる第２の行程と、前記第２の行程後に前記モータへの通電と通電停止とを間欠的に繰り返し前記脱水槽の回転数を立ち上げる第３の行程を実行するものとし、前記第１および第３の行程時にアンバランスを検知可能としたことにより、例えば脱水行程前に使用者が洗濯物を脱水槽中央に高く重ねて入れたり、衣類の上にタオルケットなどの比較的大きな洗濯物を中央に投入した場合など、脱水回転数が３００ｒｐｍ程度まで上がった時にタオルケットなどが遠心力により脱水槽の片側に移動するなど、脱水途中でアンバランス状態になる場合があっても、第３の行程により、そのアンバランスを検知することができ、異常振動の発生を防止することができる。 A first invention includes a washing machine main body, a water receiving tub provided inside the washing machine main body, a dewatering tub provided rotatably in the water receiving tub, and a motor that rotationally drives the dehydration tub. And a program control means for controlling each process of washing, rinsing and dehydration, wherein the program control means repeats intermittently energization and deenergization of the motor at the start of the dehydration process. and stroke, the rotational speed of the dehydrating tank after the first stroke 0 or a second step of reducing until near the energization and the energization stopped intermittently to said motor after said second step The third step of repeatedly raising the rotation speed of the dewatering tank is executed, and the imbalance can be detected during the first and third steps. High in the center of the dehydration tank For example, when a relatively large laundry such as a towel is put in the center on the clothes, the towel is moved to one side of the dehydration tank by centrifugal force when the dehydration rotation speed increases to about 300 rpm, etc. Even if an unbalanced state may occur during dehydration, the unbalance can be detected by the third stroke, and abnormal vibrations can be prevented.

第２の発明は、特に、第１の発明の洗濯機において、脱水行程が、すすぎ後の脱水行程後、脱水槽の回転を一時停止した後に実行され前記すすぎ後の脱水行程よりも動作時間が長い乾燥促進脱水行程を含み、プログラム制御手段は、前記乾燥促進脱水行程の開始時において、第１、第２および第３の行程を実行することにより、すすぎ後の脱水行程後に使用者が化繊やデリケートな衣類を取出して乾燥促進脱水行程を実施するコースを実現できると共に、使用者が衣類を取出す際、残りの洗濯物の状態を変化させてもアンバランス状態が検知でき、異常振動の発生を防止することができる。 A second invention is operation in particular, in the washing machine of the first aspect of the invention, dewatering stroke, after dehydrating operation after the rinsing, than dehydrating operation after pre Symbol rinsing is performed after pausing rotation of the dewatering tank The program control means executes the first, second and third steps at the start of the drying accelerating dehydration step so that the user can perform the post-rinse dehydration step. It is possible to realize a course that takes out synthetic fibers and delicate clothes and performs a drying accelerated dehydration process, and when the user takes out the clothes, the unbalanced state can be detected even if the state of the remaining laundry is changed. Occurrence can be prevented.

第３の発明は、特に、第１の発明の洗濯機において、脱水行程が、脱水回転することで乾燥を促進する乾燥促進脱水行程であり、プログラム制御手段は、前記乾燥促進脱水行程の開始時において、第１、第２および第３の行程を実行することにより、すすぎ後に乾燥促進脱水行程に移行する場合でも脱水時間が長いことによる異常振動の被害の拡大を防止することができる。 In a third aspect of the invention, particularly in the washing machine of the first aspect of the invention, the dehydration process is a dry acceleration dehydration process in which drying is accelerated by dehydration rotation, and the program control means is configured to start the drying acceleration dehydration process . In the above, by executing the first, second and third strokes, it is possible to prevent the spread of damage due to abnormal vibration due to the long dehydration time even when shifting to the drying accelerated dehydration stroke after rinsing.

第４の発明は、特に、第１の発明の洗濯機において、プログラム制御手段は、脱水行程をすすぎ行程に続いて実行する場合は、第３の行程だけで脱水槽の回転数を立ち上げ、脱水行程が、単独で選択された場合は、第１、第２および第３の行程を実行することにより、アンバランスの可能性の高い場合のみに、第１、第２および第３の行程を実行するため、通常洗濯時には、時間を短縮することができると共に、アンバランスの可能性が高い場合に、異常振動を防止することができる。 In a fourth aspect of the invention, in particular, in the washing machine of the first aspect , when the program control means executes the dehydration step following the rinse step, the rotational speed of the dehydration tank is increased only in the third step, When the dehydration process is selected alone, the first, second, and third processes are performed only when there is a high possibility of imbalance by performing the first, second, and third processes. Therefore, during normal washing, the time can be shortened, and abnormal vibration can be prevented when the possibility of imbalance is high.

第５の発明は、特に、第１〜４のいずれか１つの発明の洗濯機において、フタの開閉検知手段または一時停止ボタンを備え、プログラム制御手段は、脱水行程がフタの開閉検知手段または一時停止ボタンにより一時停止した後に再起動する場合において、第１、第２および第３の行程を実行することにより、脱水行程途中に脱水を停止した場合、使用者が洗濯物の移動、除去、追加等実施した可能性があると判断し、異常振動を予測し、防止することができる。   According to a fifth aspect of the present invention, in particular, in the washing machine according to any one of the first to fourth aspects of the present invention, the lid opening / closing detection means or the temporary stop button is provided, and the program control means has a dehydration process of the lid opening / closing detection means or temporary In the case of restarting after pausing with the stop button, if the dehydration is stopped during the dehydration process by executing the first, second and third processes, the user moves, removes and adds laundry. Therefore, it is possible to predict and prevent abnormal vibration.

第６の発明は、特に、第１〜４のいずれか１つの発明の洗濯機において、フタの開閉検知手段と、一時停止ボタンとを備え、プログラム制御手段は、脱水行程がフタの開閉検知手段または一時停止ボタンにより一時停止した後に再起動する場合において、フタの開閉を検知した後に再起動する場合にのみ、第１、第２および第３の行程を実行することにより、フタを開けて洗濯物の移動、除去、追加等が行われた場合に、異常振動を予測し、防止することができる。   According to a sixth aspect of the invention, in particular, in the washing machine according to any one of the first to fourth aspects of the present invention, the lid opening / closing detection means and a pause button are provided, and the program control means has a dehydration process for detecting the opening / closing of the lid. Or in the case of restarting after pausing with the pause button, opening the lid and washing by performing the first, second and third steps only when restarting after detecting the opening and closing of the lid Abnormal vibration can be predicted and prevented when an object is moved, removed, added, or the like.

第７の発明は、特に、第１〜６のいずれか１つの発明の洗濯機において、プログラム制
御手段は、第１の行程において、脱水槽の回転数が連続脱水時の回転数より低い所定の回転数に達した時に第２の行程に移行することにより、脱水途中にアンバランス状態になっても異常振動になる前に第２の行程に移行できる。 According to a seventh aspect of the invention, in particular, in the washing machine according to any one of the first to sixth aspects, the program control means has a predetermined number of rotations of the dewatering tank lower than the number of rotations during continuous dehydration in the first step. By shifting to the second stroke when the number of revolutions is reached, even if an unbalanced state occurs during dehydration, it is possible to shift to the second stroke before abnormal vibration occurs.

第８の発明は、特に、第１〜７のいずれか１つの発明の洗濯機において、プログラム制御手段は、第２の行程の脱水槽の回転数を低下させる方法を、モータへの通電を停止することによる自然停止としたことにより、ブレーキなどによる音の発生がなく、静かに移行するため、使用者の不快感がないものである。 In the eighth invention, in particular, in the washing machine according to any one of the first to seventh inventions, the program control means stops the energization of the motor in a method for reducing the rotation speed of the dewatering tank in the second stroke. By making a natural stop by doing, there is no generation of sound due to brakes, etc., and the transition is quiet, so there is no discomfort for the user.

第９の発明は、特に、第１〜７のいずれか１つの発明の洗濯機において、プログラム制御手段は、第２の行程の脱水槽の回転数を低下させる方法を、モータへの通電停止と共にブレーキにより回転を低下させるようにしたことにより、脱水率の向上と時間短縮を図ることができる。 According to a ninth aspect of the invention, in particular, in the washing machine according to any one of the first to seventh aspects, the program control means includes a method of reducing the rotational speed of the dewatering tub in the second stroke, together with stopping energization of the motor. By reducing the rotation by the brake, it is possible to improve the dehydration rate and shorten the time.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

（実施の形態１）
図１は本発明の実施の形態１における洗濯機の脱水行程における脱水回転数と時間との関係を示す図、図２は行程のフローチャートである。なお、構成については従来例と同じ図５、図６、図８および図９を用いて説明する。 (Embodiment 1)
FIG. 1 is a diagram showing the relationship between the spin speed and time in the dehydration process of the washing machine according to Embodiment 1 of the present invention, and FIG. 2 is a flowchart of the process. The configuration will be described with reference to FIGS. 5, 6, 8, and 9, which are the same as those of the conventional example.

洗濯、すすぎ、および脱水の各行程を制御するプログラム制御手段１３を備え、前記プログラム制御手段１３は、脱水行程において、図１に示すように回転、停止を間欠的に繰り返す第１の行程１７と、この第１の行程途中から脱水回転数を０またはその近傍までに低下させる第２の行程１８と、この第２の行程後に回転、停止を間欠的に繰り返し回転数を立ち上げる第３の行程１９を実行するものとし、前記第１の行程１７と第３の行程１９時に洗濯物のアンバランスを検知可能としたものである。   Program control means 13 for controlling each process of washing, rinsing, and dehydration is provided. The program control means 13 includes a first process 17 that intermittently repeats rotation and stop in the dehydration process as shown in FIG. In the middle of the first stroke, the second stroke 18 for reducing the dehydration rotational speed to 0 or in the vicinity thereof, and the third stroke for raising the rotational speed by repeating the rotation and stop intermittently after the second stroke. 19 is executed, and the imbalance of the laundry can be detected at the time of the first stroke 17 and the third stroke 19.

図８に示すように、脱水行程前に使用者が洗濯物を脱水槽５中央に高く重ねて入れたり、衣類１５の上にタオルケット１６などの比較的大きな洗濯物を脱水槽５の中央に投入した場合など、脱水回転数が３００ｒ／ｍｉｎ程度まで上がった時に、図９に示すように、タオルケット１６が遠心力により脱水槽５の片側に移動する。このように、脱水途中でアンバランス状態になる場合があっても、第３の行程１９により、そのアンバランスを検知することが可能となる。   As shown in FIG. 8, before the dehydration process, the user puts the laundry high on the center of the dehydration tank 5, or puts a relatively large laundry such as a towel 16 on the clothes 15 in the center of the dehydration tank 5. When the dehydration speed is increased to about 300 r / min, the towel 16 is moved to one side of the dewatering tank 5 by centrifugal force as shown in FIG. As described above, even if an unbalanced state may occur during dehydration, the unbalance can be detected by the third step 19.

図２（ａ）に示すように、洗濯、すすぎ、脱水の各行程が連続して実行される場合は、スタート（ステップ２０）後、洗濯行程を実行（ステップ２１）し、その後すすぎ行程を実行する。このすすぎ行程には、すすぎ（ステップ２２）を行った後、洗濯物９のバランスをよい状態で脱水行程に移行できるよう、最後にパルセータ６を小刻みに反転しアンバランス状態を解消するアンバランス解消水流２３を設けている（ステップ２３）。この場合は、洗濯物９はバランスのよい状態が保たれているため、第１の行程１７および第２の行程１８を省略し、第３の行程１９だけを実行し（ステップ２４）、脱水回転数を立ち上げ、連続脱水を所定時間実行（ステップ２５）した後、終了する（ステップ２６）。   As shown in FIG. 2 (a), when the washing, rinsing, and dehydration processes are executed continuously, after the start (step 20), the washing process is executed (step 21), and then the rinsing process is executed. To do. In this rinsing process, after rinsing (step 22), finally, the pulsator 6 is reversed in small increments so that the balance of the laundry 9 can be shifted to the dehydration process. A water stream 23 is provided (step 23). In this case, since the laundry 9 is kept in a well-balanced state, the first stroke 17 and the second stroke 18 are omitted, and only the third stroke 19 is executed (step 24), and the spin rotation is performed. The number is increased, and after continuous dehydration is performed for a predetermined time (step 25), the process is terminated (step 26).

一方、図２（ｂ）に示すように、前記脱水行程が単独で選択された場合には、洗濯物９の状態がどのような場合であっても異常振動を防止する必要があるため、スタート（ステップ２７）後、第１の行程１７（ステップ２８）、第２の行程１８（ステップ２９）、および第３の行程１９（ステップ３０）を順次実行した後連続脱水を所定時間実行（ステップ３１）した後、終了する（ステップ３２）。   On the other hand, as shown in FIG. 2 (b), when the dehydration process is selected alone, it is necessary to prevent abnormal vibrations regardless of the state of the laundry 9, so that the start is started. After (Step 27), the first stroke 17 (Step 28), the second stroke 18 (Step 29), and the third stroke 19 (Step 30) are sequentially performed, and then continuous dewatering is performed for a predetermined time (Step 31). ) And finishes (step 32).

また、安全スイッチ４などによるフタ３の開閉検知手段や一時停止ボタン２０などを備え、脱水行程が一時停止後に再起動する場合に、第１の行程１７、第２の行程１８および第３の行程１９が実行されるようにしている。このように脱水行程途中に脱水を停止した場合に、使用者が洗濯物９の移動、除去、追加等実施した可能性があると判断し、第１の行程１７、第２の行程１８および第３の行程１９を実行することにより、第３の行程１９で、アンバランスを検知することにより、異常振動を予測し、防止することができる。   In addition, when the dehydration process is restarted after being temporarily stopped, the first process 17, the second process 18, and the third process are provided. 19 is executed. In this way, when the dehydration is stopped during the dehydration process, it is determined that the user may have moved, removed, or added the laundry 9, and the first process 17, the second process 18, and the second process. By executing the third stroke 19, abnormal vibration can be predicted and prevented by detecting imbalance in the third stroke 19.

また、第１の行程１７において、回転数が３００ｒ／ｍｉｎ程度に達した時に第２の行程１８に移行することにより、第１の行程１７途中にアンバランス状態になっても異常振動になる前に第２の行程１８に移行できる。   In the first stroke 17, when the rotational speed reaches about 300 r / min, the process shifts to the second stroke 18, so that even if an unbalanced state occurs in the middle of the first stroke 17, before abnormal vibration occurs. Then, the second process 18 can be started.

また、第２の行程１８の回転数を低下させる方法を、モータ１２ａへの通電を停止することによる自然停止とすることにより、ブレーキなどによる音の発生がなく、静かに移行するため、使用者の不快感がない。   In addition, since the method of reducing the rotation speed of the second stroke 18 is a natural stop by stopping the energization of the motor 12a, no noise is generated due to a brake or the like, and the transition is made quietly. There is no discomfort.

（実施の形態２）
図３は本発明の実施の形態２における洗濯機の行程のフローチャートである。他の構成は上記実施の形態１と同じであり、詳細な説明は省略する。 (Embodiment 2)
FIG. 3 is a flowchart of the process of the washing machine in the second embodiment of the present invention. Other configurations are the same as those of the first embodiment, and detailed description thereof is omitted.

図３に示すように、スタート（ステップ３３）後、洗濯行程を実行（ステップ３４）し、その後すすぎ行程を実行する（ステップ３５）。その後の脱水行程は、以下のようになっている。まず、すすぎ後の脱水行程が実行され（ステップ３６）、その後、脱水を一時停止する（ステップ３７）。その後、使用者が所定の動作、例えば、化繊やデリケートな衣類を取出した後、第１の行程１７（ステップ３８）、第２の行程１８（ステップ３９）、および第３の行程１９（ステップ４０）を実行し、最後に、すすぎ後の脱水行程よりも動作時間が長い乾燥促進脱水行程を実行し（ステップ４１）、終了する（ステップ４２）。   As shown in FIG. 3, after the start (step 33), the washing process is executed (step 34), and then the rinsing process is executed (step 35). The subsequent dehydration process is as follows. First, a dehydration step after rinsing is executed (step 36), and then dehydration is temporarily stopped (step 37). Then, after a user takes out a predetermined operation, for example, synthetic fiber or delicate clothes, the first stroke 17 (step 38), the second stroke 18 (step 39), and the third stroke 19 (step 40). Finally, a drying acceleration dehydration process having a longer operation time than the dewatering process after rinsing is performed (step 41), and the process ends (step 42).

すなわち、一時停止時に、使用者が衣類を取出す際、洗濯物９の状態をどのように変化させても、異常振動を防ぐことが可能となる。   That is, when the user takes out the clothes during the pause, it is possible to prevent abnormal vibrations regardless of how the state of the laundry 9 is changed.

この場合は、一時停止時（ステップ３７）に、ブザーなどで使用者に知らせる手段を設けるとよい。   In this case, a means for notifying the user with a buzzer or the like may be provided at the time of suspension (step 37).

（実施の形態３）
図４は本発明の実施の形態３における洗濯機の行程のフローチャートである。他の構成は上記実施の形態１と同じであり、詳細な説明は省略する。 (Embodiment 3)
FIG. 4 is a flowchart of the process of the washing machine in the third embodiment of the present invention. Other configurations are the same as those of the first embodiment, and detailed description thereof is omitted.

図４に示すように、スタート（ステップ４３）後、洗濯行程を実行（ステップ４４）し、その後すすぎ行程を実行する（ステップ４５）。その後の脱水行程は、以下のようになっている。脱水行程は、第１の行程１７（ステップ４６）、第２の行程１８（ステップ４７）、および第３の行程１９（ステップ４８）を実行した後、脱水回転することで乾燥を促進する乾燥促進脱水行程を実行した（ステップ４９）後、終了する（ステップ５０）。なお、乾燥促進脱水行程は、通常の脱水時間より長く設定してある。例えば、脱水時間が約１時間である。   As shown in FIG. 4, after the start (step 43), a washing process is executed (step 44), and then a rinsing process is executed (step 45). The subsequent dehydration process is as follows. In the dehydration process, after the first process 17 (step 46), the second process 18 (step 47), and the third process 19 (step 48) are executed, drying is accelerated by performing dehydration rotation. After the dehydration process is executed (step 49), the process is terminated (step 50). The drying acceleration dehydration process is set longer than the normal dehydration time. For example, the dehydration time is about 1 hour.

このように、すすぎ後に脱水時間が長い乾燥促進脱水行程に移行する場合でも、脱水時間が長いことによる異常振動の被害の拡大を防ぐことが出来る。   In this way, even when the process proceeds to the drying-accelerated dehydration process having a long dehydration time after rinsing, it is possible to prevent the damage caused by abnormal vibration due to the long dehydration time.

（実施の形態４）
構成は上記実施の形態１と同じであり、詳細な説明は省略する。 (Embodiment 4)
The configuration is the same as in the first embodiment, and a detailed description is omitted.

安全スイッチ４などのフタ３の開閉検知手段と一時停止ボタン２０などを備え、脱水行程が一時停止後、フタ３の開閉を検知した後に再起動する場合にかぎり、第１の行程１７、第２の行程１８および第３の行程１９が実行されることにより、フタ３を開けて洗濯物９の移動、除去、追加等が行われた場合に、異常振動を予測し、防止することが可能となる。   The first and second strokes 17 and 2 are provided only when the opening / closing detection means of the lid 3 such as the safety switch 4 and the pause button 20 are provided and the dehydration stroke is paused and then restarted after the opening / closing of the lid 3 is detected. When the process 18 and the third process 19 are performed, abnormal vibrations can be predicted and prevented when the lid 3 is opened and the laundry 9 is moved, removed, added, or the like. Become.

（実施の形態５）
構成は上記実施の形態１と同じであり、詳細な説明は省略する。 (Embodiment 5)
The configuration is the same as in the first embodiment, and a detailed description is omitted.

第２の行程１８の回転数を低下させる方法を、モータ１２ａへの通電停止と共に、切り換えクラッチ１２ｂに設けたブレーキによって早めることにより、脱水率の向上と時間短縮を図ることが可能となる。   By speeding up the method of reducing the rotational speed of the second stroke 18 by stopping the energization of the motor 12a and using a brake provided in the switching clutch 12b, it is possible to improve the dehydration rate and shorten the time.

以上のように、本発明にかかる洗濯機は、洗濯物の脱水途中でのアンバランスを検知し、異常振動の発生を防止すること可能となるので、洗濯、すすぎ、脱水行程を自動で行う洗濯機等として有用である。   As described above, the washing machine according to the present invention can detect an imbalance during the dehydration of the laundry and prevent the occurrence of abnormal vibration, so that the washing, rinsing, and dehydration processes are automatically performed. It is useful as a machine.

本発明の実施の形態１の洗濯機の脱水行程における脱水回転数と時間との関係を示す図The figure which shows the relationship between the rotation speed and time in the spin-drying | dehydration process of the washing machine of Embodiment 1 of this invention. 同洗濯機の行程のフローチャートFlow chart of the washing machine process 本発明の実施の形態２における洗濯機の行程のフローチャートFlow chart of process of washing machine in embodiment 2 of the present invention 本発明の実施の形態３における洗濯機の行程のフローチャートFlowchart of the process of the washing machine in Embodiment 3 of the present invention 従来の洗濯機の縦断面図Vertical section of a conventional washing machine 同洗濯機の安全スイッチ部縦断面図Longitudinal sectional view of the safety switch of the washing machine 同洗濯機の脱水行程における脱水回転数と時間との関係を示す図The figure which shows the relationship between dehydration rotation speed and time in the dehydration process of the washing machine 同洗濯機の回転前の布の状態を示す図The figure which shows the state of the cloth before rotation of the washing machine 同洗濯機の回転中の布の状態を示す図The figure which shows the state of the cloth under rotation of the washing machine

符号の説明Explanation of symbols

１３ プログラム制御手段
１７ 第１の行程
１８ 第２の行程
１９ 第３の行程 13 Program control means 17 1st process 18 2nd process 19 3rd process

Claims (9)

洗濯機本体と、前記洗濯機本体の内部に設けられた水受け槽と、前記水受け槽内に回転自在に設けられた脱水槽と、前記脱水槽を回転駆動するモータと、洗濯、すすぎ、および脱水の各行程を制御するプログラム制御手段を備え、前記プログラム制御手段は、前記脱水行程の開始時において、前記モータへの通電と通電停止とを間欠的に繰り返す第１の行程と、前記第１の行程後に前記脱水槽の回転数を０またはその近傍までに低下させる第２の行程と、前記第２の行程後に前記モータへの通電と通電停止とを間欠的に繰り返し前記脱水槽の回転数を立ち上げる第３の行程を実行するものとし、前記第１および第３の行程時にアンバランスを検知可能とした洗濯機。 A washing machine main body, a water receiving tub provided inside the washing machine main body, a dewatering tub rotatably provided in the water receiving tub, a motor for rotationally driving the dehydration tub, washing, rinsing, and comprising a program control means for controlling each stroke of dehydration, the program control unit, at the start of the dehydration step, a first step to repeat the energization and de-energization to the motor intermittently, said first a second step of reducing the rotational speed of the dehydrating bath after one stroke to 0 or near, the rotation of the intermittently repeated the drying tub and energization and de-energization to the motor after the second stroke A washing machine capable of executing a third process of increasing the number and detecting an imbalance during the first and third processes. 脱水行程が、すすぎ後の脱水行程後、脱水槽の回転を一時停止した後に実行され前記すすぎ後の脱水行程よりも動作時間が長い乾燥促進脱水行程を含み、プログラム制御手段は、前記乾燥促進脱水行程の開始時において、第１、第２および第３の行程を実行する請求項１記載の洗濯機。 Dewatering stroke, after dehydrating operation after the rinsing, the operation time than dehydrating operation after previously executed Symbol rinsing after pausing rotation of the dewatering tank includes a long drying accelerating dehydration step, program control means, said drying The washing machine according to claim 1, wherein the first, second and third steps are executed at the start of the accelerated dewatering step. 脱水行程が、脱水回転することで乾燥を促進する乾燥促進脱水行程であり、プログラム制御手段は、前記乾燥促進脱水行程の開始時において、第１、第２および第３の行程を実行する請求項１記載の洗濯機。 The dehydration process is a drying acceleration dehydration process in which drying is accelerated by rotating dehydration, and the program control means executes the first, second and third processes at the start of the drying acceleration dehydration process. 1. The washing machine according to 1. プログラム制御手段は、脱水行程をすすぎ行程に続いて実行する場合は、第３の行程だけで脱水槽の回転数を立ち上げ、脱水行程が、単独で選択された場合は、第１、第２および第３の行程を実行する請求項１記載の洗濯機。 The program control means increases the rotation speed of the dehydration tank only in the third stroke when the dehydration stroke is executed following the rinsing stroke, and the first and second when the dehydration stroke is selected alone. and the washing machine according to claim 1, wherein executing the third step. フタの開閉検知手段または一時停止ボタンを備え、プログラム制御手段は、脱水行程がフタの開閉検知手段または一時停止ボタンにより一時停止した後に再起動する場合において、第１、第２および第３の行程を実行する請求項１〜４のいずれか１項に記載の洗濯機。 A lid opening / closing detection means or a pause button is provided, and the program control means is configured to perform the first, second, and third steps when the dehydration process is restarted after being temporarily stopped by the lid opening / closing detection means or the pause button. The washing machine according to any one of claims 1 to 4, wherein the washing machine is executed. フタの開閉検知手段と、一時停止ボタンとを備え、プログラム制御手段は、脱水行程がフタの開閉検知手段または一時停止ボタンにより一時停止した後に再起動する場合において、フタの開閉を検知した後に再起動する場合にのみ、第１、第２および第３の行程を実行
する請求項１〜４のいずれか１項に記載の洗濯機。 A lid opening / closing detection means and a pause button are provided, and the program control means restarts after detecting the opening / closing of the lid when the dehydration process is restarted after being paused by the lid opening / closing detection means or the pause button. The washing machine according to any one of claims 1 to 4, wherein the first, second, and third steps are executed only when the machine is started. プログラム制御手段は、第１の行程において、脱水槽の回転数が連続脱水時の回転数より低い所定の回転数に達した時に第２の行程に移行する請求項１〜６のいずれか１項に記載の洗濯機。 The program control means shifts to the second stroke when the rotation speed of the dewatering tank reaches a predetermined rotation speed lower than the rotation speed at the time of continuous dewatering in the first stroke. The washing machine as described in. プログラム制御手段は、第２の行程の脱水槽の回転数を低下させる方法を、モータへの通電を停止することによる自然停止とした請求項１〜７のいずれか１項に記載の洗濯機。 The washing machine according to any one of claims 1 to 7, wherein the program control means sets the method of reducing the rotation speed of the dewatering tank in the second stroke as a natural stop by stopping energization of the motor. プログラム制御手段は、第２の行程の脱水槽の回転数を低下させる方法を、モータへの通電停止と共にブレーキにより回転を低下させるようにした請求項１〜７のいずれか１項に記載の洗濯機。 The washing machine according to any one of claims 1 to 7, wherein the program control means reduces the rotation speed of the dehydration tank in the second stroke by braking together with stopping energization of the motor. Machine.
JP2003299592A 2003-08-25 2003-08-25 Washing machine Expired - Fee Related JP4206865B2 (en)

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Publication number Priority date Publication date Assignee Title
CN107190466A (en) * 2017-05-31 2017-09-22 青岛海尔洗衣机有限公司 A kind of dewatering and washing machine of non-porous interior bucket rotary drum washing machine

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KR20210079728A (en) * 2019-12-20 2021-06-30 엘지전자 주식회사 Controlling Method of Laundry Treatment Apparatus
CN113584767B (en) * 2021-05-28 2023-01-13 泰州世纪天虹纺织有限公司 Cleaning and dewatering process for textile processing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107190466A (en) * 2017-05-31 2017-09-22 青岛海尔洗衣机有限公司 A kind of dewatering and washing machine of non-porous interior bucket rotary drum washing machine
CN107190466B (en) * 2017-05-31 2021-11-02 青岛海尔洗衣机有限公司 Dehydration method of imperforate inner barrel impeller washing machine and washing machine

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