JP4100576B1 - Drum washing machine - Google Patents

Drum washing machine Download PDF

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JP4100576B1
JP4100576B1 JP2007033085A JP2007033085A JP4100576B1 JP 4100576 B1 JP4100576 B1 JP 4100576B1 JP 2007033085 A JP2007033085 A JP 2007033085A JP 2007033085 A JP2007033085 A JP 2007033085A JP 4100576 B1 JP4100576 B1 JP 4100576B1
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rotating drum
laundry
drum
rotation
degrees
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JP2008194255A (en
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亜美 柴山
直 朝見
弘之 井上
弘美 広田
健二 越賀
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松下電器産業株式会社
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005Methods for washing, rinsing or spin-drying
    • D06F35/006Methods for washing, rinsing or spin-drying for washing or rinsing only
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02Rotary receptacles, e.g. drums
    • D06F37/04Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis

Abstract

【課題】絡み、捩れの発生を大きく改善し機械力の働きを高めながら皺も生じ難いものとする。
【解決手段】有底円筒形に形成された回転ドラム4を、開口する正面側から底部となる背面側に向けて回転軸方向が水平または水平方向から下向き傾斜となるようにして水槽内に設置した条件において、回転ドラムの90度を超え180度未満での急正弧回転、急逆弧回転を交互に繰り返す正逆弧回転駆動モードによって上記の目的を達成する。
【選択図】図4
An object of the present invention is to greatly improve the occurrence of entanglement and torsion and enhance the function of mechanical force so that wrinkles are hardly generated.
A rotating drum 4 formed in a bottomed cylindrical shape is installed in a water tank so that the direction of the rotation axis is horizontal or inclined downward from the horizontal direction from the opening front side toward the back side as the bottom. Under the above conditions, the above object is achieved by the forward / reverse arc rotation drive mode in which the sudden forward arc rotation and the sudden reverse arc rotation of 90 to less than 180 degrees of the rotating drum are alternately repeated.
[Selection] Figure 4

Description

本発明は、有底円筒形に形成された回転ドラムを、開口する正面側から底部となる背面側に向けて回転軸方向が水平または水平方向から下向き傾斜となるようにして水槽内に設置し、回転ドラムを回転駆動することにより回転ドラム内に収容した洗濯物を洗濯するドラム式洗濯機に関するものである。   In the present invention, a rotating drum formed in a bottomed cylindrical shape is installed in a water tank so that the direction of the rotation axis is horizontal or inclined downward from the horizontal direction from the front side to the open side to the back side as the bottom. The present invention relates to a drum type washing machine for washing laundry stored in a rotating drum by rotationally driving the rotating drum.
このようなドラム式洗濯機は本発明の実施の形態を示す図1を参照して、筐体1内にサスペンション構造によって支持された水槽2内に、多数の孔3が形成された回転ドラム4が配設され、回転ドラム4はモータ5によって回転駆動され、筐体1の正面側に開閉自在に設けられた扉6を開くことにより水槽2の正面開口部および回転ドラム4の正面開口部を通して洗濯物を回転ドラム4内から出し入れできるように構成されている。   Referring to FIG. 1 showing an embodiment of the present invention, such a drum type washing machine has a rotating drum 4 in which a number of holes 3 are formed in a water tank 2 supported by a suspension structure in a housing 1. The rotary drum 4 is rotationally driven by a motor 5 and opens a door 6 that can be opened and closed on the front side of the housing 1 to pass through the front opening of the water tank 2 and the front opening of the rotary drum 4. The laundry can be taken in and out of the rotary drum 4.
従来の通常洗濯モードでは、扉6を開いて回転ドラム4内に洗濯物を投入し、洗剤の投入を伴い運転を開始させると、水槽2内には給水系7から給水がなされ、給水された水は孔3を通じて回転ドラム4内にも所要量の水が給水される。モータ5により回転ドラム4が所定回転速度で回転駆動されると、回転ドラム4内に収容された洗濯物は回転ドラム4の内周面に設けられた攪拌突起8に引っ掛けられて回転方向に持ち上げられ、適当な高さから落下することにより、洗濯物には叩き洗いの作用が加えられることにより洗濯がなされる。この洗濯工程の後、汚れた洗濯水は排水系11により排水され、新たに給水された水を用いてすすぎ工程が実施され、すすぎ工程が終了すると回転ドラム4を高速回転させて脱水工程が実施される。これらの工程は所定の制御手順に基づいて自動実行される。なお、図1に示すように送風機12により水槽2および回転ドラム4内の空気を吸引して除湿および加熱を順次に行い乾いた高温空気として水槽2および回転ドラム4内に送風することを繰り返す乾燥系13を装備したドラム式洗濯乾燥機といわれるドラム式洗濯機では、前記脱水工程後に乾燥工程も自動実行される。   In the conventional normal washing mode, when the door 6 is opened and the laundry is put into the rotating drum 4 and the operation is started with the introduction of the detergent, the water tank 2 is supplied with water from the water supply system 7 and supplied. A required amount of water is also supplied into the rotary drum 4 through the holes 3. When the rotary drum 4 is rotationally driven by the motor 5 at a predetermined rotational speed, the laundry stored in the rotary drum 4 is hooked on the stirring protrusion 8 provided on the inner peripheral surface of the rotary drum 4 and lifted in the rotational direction. When the laundry is dropped from an appropriate height, washing is performed by applying a washing action to the laundry. After this washing process, the dirty washing water is drained by the drainage system 11, and the rinsing process is performed using the newly supplied water. When the rinsing process is completed, the rotating drum 4 is rotated at a high speed and the dewatering process is performed. Is done. These steps are automatically executed based on a predetermined control procedure. In addition, as shown in FIG. 1, the air in the water tank 2 and the rotating drum 4 is sucked by the blower 12 and dehumidification and heating are sequentially performed, and the air is repeatedly blown into the water tank 2 and the rotating drum 4 as dry high temperature air. In a drum type washing machine called a drum type washing and drying machine equipped with the system 13, a drying process is automatically executed after the dehydration process.
ところで、開口側から底部側に向けて回転軸方向が水平または水平方向から下向き傾斜となるように配置された回転ドラムにより洗濯を行うと、洗濯物の出し入れは容易であるが、洗濯物を十分に持ち上げて落し叩き洗いする作用が弱く、傾斜した回転ドラム4では回転軸方向でも低い位置に洗濯物が集まる傾向も手伝って特に弱くなることが既に知見され(例えば、特許文献1参照。)、これを解決する技術として特許文献1では、回転ドラムの回転によって持ち上げられた洗濯物が自重が勝る高さ位置から落下する挙動を示す第1の所定回転速度で回転ドラムを第1の所定の時間回転駆動した後、回転ドラムの回転駆動を所定時間停止させることで、低い位置に集まろうとする洗濯物の位置を入れ換える技術、また、このような回転駆動を正逆方向に交互に行い洗濯物に捩れが発生するのを図7(a)に脱水後の貼り付き状態で示すような捩れ、絡み状態を図7(b)に示す脱水後の貼り付き状態で示すように抑制し、洗濯物を取り出す際の作業力を幾分低減できる技術、さらに、回転ドラムの直径が500±50mmであるとき、第1の所定回転速度を30±5rpmとして、水平配置の場合の通常速度よりも高めて洗濯物を十分に持ち上げた後での落下により叩き洗い効果を高める技術を開示している。なお、第1の所定時間は13秒、4分などと例示されており前記回転速度との関係から連続回転である。
特開2005−124764号公報
By the way, when washing is performed with a rotating drum arranged so that the rotation axis direction is horizontal or inclined downward from the horizontal direction from the opening side to the bottom side, it is easy to put in and out the laundry, but the laundry is sufficient. It has already been found that the action of lifting and dropping and washing and washing is weak, and the inclined rotating drum 4 is particularly weak with the help of the tendency of the laundry to collect at a low position in the rotational axis direction (see, for example, Patent Document 1). As a technique for solving this, in Patent Document 1, the laundry is lifted by the rotation of the rotating drum, and the rotating drum is moved to the first predetermined time at a first predetermined rotation speed that shows a behavior in which the laundry falls from a height position where its own weight prevails. A technique for changing the position of the laundry to be gathered at a low position by stopping the rotation drive of the rotary drum for a predetermined time after the rotation drive, and such a rotation drive Twisting and entangled states shown in FIG. 7 (b) are shown in FIG. 7 (a) when twisting occurs in the laundry alternately in the forward and reverse directions. As shown in Fig. 1, the technology that can reduce the work force when taking out the laundry somewhat, and when the diameter of the rotating drum is 500 ± 50mm, the first predetermined rotation speed is set to 30 ± 5rpm and horizontally arranged In this case, a technique for increasing the washing effect by dropping after the laundry is sufficiently lifted by increasing the normal speed is disclosed. The first predetermined time is exemplified as 13 seconds, 4 minutes, etc., and is a continuous rotation from the relationship with the rotation speed.
JP 2005-124664 A
しかし、特許文献1に記載の技術は、回転ドラムの回転速度を水平設置の場合よりも高くしているものの、持ち上げた洗濯物を回転ドラムによる遠心力よりもその自重が勝る高さ位置から自然落下させる範疇にしかないため、洗濯物の種類によっては持ち上げ位置の不足、叩き洗い効果の不足を招きかねない。また、正逆回転を交互に行うものの正連続回転と逆連続回転とを交互に行うもので、連続回転中に洗濯物が捩れたり絡んだりするので、連続回転の正回転駆動と逆回転駆動との間に停止期間があっても、図7(b)に脱水後の状態で示す程度の絡みの解消はできるが、捩れの抑制はまだ十分でないし、洗濯後も回転ドラムの内面に貼り付いたままになっていて洗濯物を取り出すのに他方向からの剥がし作業が必要となってなお作業は手間である上、洗濯物の皺は余り解消されないので洗濯後に皺を取る作業にも手間が掛かる。   However, although the technique described in Patent Document 1 makes the rotational speed of the rotating drum higher than that in the case of horizontal installation, the lifted laundry is naturally moved from a height position where its own weight is superior to the centrifugal force of the rotating drum. Since there is only the category to drop, depending on the type of laundry, there may be a lack of lifting position and lack of tapping effect. In addition, although the forward / reverse rotation is alternately performed, the forward continuous rotation and the reverse continuous rotation are alternately performed, and the laundry is twisted or entangled during the continuous rotation. Even if there is a stop period, the entanglement to the extent shown in FIG. 7 (b) after dehydration can be resolved, but the twist is not yet sufficiently suppressed, and it remains stuck to the inner surface of the rotating drum after washing. It takes a lot of time to remove the laundry from the other direction, and the work is still troublesome. It takes.
本発明の目的は、絡み、捩れの発生を大きく改善し機械力の働きを高めながら皺も生じ難いドラム式洗濯機を提供することにある。   An object of the present invention is to provide a drum type washing machine that greatly improves the occurrence of entanglement and twisting and enhances the action of mechanical force, and is less likely to cause wrinkles.
上記目的を達成するために本発明に係るドラム式洗濯機は、有底円筒形に形成されモータにより回転駆動される回転ドラムを、開口する正面側から底部となる背面側に向けて回転軸方向が水平または水平方向から下向き傾斜となるようにして水槽内に設置し、前記モータ等を制御して洗濯、すすぎ、脱水等の各工程を実行する制御装置を有するドラム式洗濯機であって、前記制御装置は、洗濯工程およびすすぎ工程の少なくとも一方において、前記モータを駆動させ、前記回転ドラムの回転によって持ち上げられた前記洗濯物がその自重が勝る高さから落下する挙動を示す回転速度で前記回転ドラムを連続回転させる連続回転駆動モードないしは前記連続回転駆動モードの前記回転ドラムの連続回転を正逆交互に繰り返す正逆連続回転駆動モードを実行するようにし、前記連続回転駆動モードないしは前記正逆連続回転駆動モードに代る一部において、前記モータを急駆動させることで前記回転ドラムを急弧回転させ、前記回転ドラムの急弧回転による遠心力にて洗濯物が前記回転ドラム内面に貼り付いて前記回転ドラムの最下位置から最大限90度を超え180度未満の位置まで持ち上げられた後、前記モータの回転の急制動により、前記洗濯物がその慣性および自重により前記回転ドラム内面から剥がされるとともに前記回転ドラムの下部範囲の持ち上げ側と反対の側に落下する動作を、正逆交互に繰り返し行う正逆弧回転駆動モードを実行することを1つの特徴としている。 In order to achieve the above object, the drum type washing machine according to the present invention is configured so that a rotating drum that is formed in a bottomed cylindrical shape and is driven to rotate by a motor is rotated in the direction of the rotation axis from the front side to the bottom side. Is a drum type washing machine having a control device that is installed in a water tank so as to be inclined downward from the horizontal or horizontal direction, and controls each of the motors and the like to execute each step of washing, rinsing, dehydrating, etc. The control device drives the motor in at least one of a washing process and a rinsing process, and the laundry is lifted by the rotation of the rotating drum at a rotational speed indicating a behavior in which the laundry falls from a height where its own weight is superior. A continuous rotation drive mode in which the rotating drum is continuously rotated, or a forward / reverse continuous rotation drive mode in which continuous rotation of the rotating drum in the continuous rotation drive mode is repeated forward and backward alternately. So as to perform a de, in the continuous rotation drive mode or some alternative to the normal and reverse continuous rotation drive mode, by Kyuko rotating the rotary drum by causing rapid drive the motor, rapid arc of said rotary drum The laundry is attached to the inner surface of the rotating drum by centrifugal force due to rotation and lifted from the lowest position of the rotating drum to a position exceeding 90 degrees and less than 180 degrees, and then suddenly braking the rotation of the motor. A forward / reverse arc rotation drive mode in which the laundry is peeled off from the inner surface of the rotating drum due to its inertia and its own weight and is dropped alternately on the side opposite to the lifting side of the lower range of the rotating drum. It is set to one, characterized in that run.
このような特徴によれば、連続回転駆動モードないしは正逆連続回転駆動モードによっては洗濯物を大きく連続に動かしむら無く洗う均一な洗い挙動を与えるとともに、正逆弧回転駆動モードの実行で、回転ドラムの急弧回転により洗濯物を回転ドラムの最下位置から最大限90度を超えて180度未満まで持ち上げ、洗濯物の持ち上げの最終時段階の急制動により制動状態が生じて洗濯物をその慣性および自重により回転ドラム内面から剥がされるとともに回転ドラムの下部範囲の持ち上げ側と反対の側に落下する動作を確実に達成でき、正逆交互の急弧回転駆動によって洗濯物の持ち上げ位置、落下位置を毎回の弧回転駆動において左右交互に入れ換えられるので、洗濯物が絡むことを防ぎながら解し作用を高められるとともに、機械力を洗濯物に及ぼす回数を増やすことができるので洗浄性能を高めることができる。 According to such a feature, depending on the continuous rotation drive mode or the forward / reverse continuous rotation drive mode, the laundry can be washed continuously without moving uniformly, and the forward / reverse arc rotation drive mode can be rotated. The laundry is lifted from the lowest position of the rotating drum to more than 90 degrees and less than 180 degrees by the sudden arc rotation of the drum, and the braking state is caused by the sudden braking at the final stage of lifting the laundry, and the laundry is It can be reliably peeled off from the inner surface of the rotating drum due to inertia and its own weight and dropped to the side opposite to the lifting side of the lower part of the rotating drum. Can be switched alternately on the left and right in each arc rotation drive, so that it is possible to improve the action while preventing the laundry from getting tangled, and the mechanical force It is possible to increase the number of times on the laundry can be enhanced cleaning performance.
上記の発明において、さらに、制御装置は、正逆弧回転駆動モードでの正逆弧回転時における回転ドラムの最大回転速度を、40rpm以上としたことを特徴とすることにより、弧回転駆動モードでの洗濯物の弧回転位置への持ち上げと、反対側への落下とを確実に達成することができる。   In the above invention, the control device is further characterized in that the maximum rotation speed of the rotating drum during forward and reverse arc rotation in the forward and reverse arc rotation drive mode is set to 40 rpm or more. The laundry can be reliably lifted to the arc rotation position and dropped to the opposite side.
また、制御装置は、第1のドラム駆動指示によるモータの駆動にて、前記モータの脱調限界を超えるとき、上限負荷を超えない第2のドラム駆動指示により前記モータを駆動することを特徴とすることにより、その時々で駆動負荷に違いがあっても、洗濯物に対する持ち上げ、剥がしの挙動を設定通りに得られる。   Further, the control device drives the motor by a second drum driving instruction not exceeding an upper limit load when the motor step-out limit is exceeded by driving the motor by the first drum driving instruction. By doing so, even if there is a difference in driving load from time to time, the lifting and peeling behavior for the laundry can be obtained as set.
制御装置は、回転ドラムの回転方向の正逆切り換えのための停止または反転を、回転ドラム内面に貼り付いた洗濯物が落下するまでに行うことを特徴とすることにより、洗濯物の落下位置が弧回転方向の持ち上げ側から左右反対の側に移った落下位置を確保して反転した弧回転による持ち上げが行えるので、洗濯物の持ち上げ位置、落下位置の毎回の弧回転駆動における左右交互の入れ換えをより確実に達成して洗濯物の解し作用をさらに高め、機械力をさらに洗濯物に及ぼすことができる。   The control device performs stop or reversal for forward / reverse switching of the rotation direction of the rotating drum until the laundry stuck to the inner surface of the rotating drum falls, whereby the position of the laundry falling is determined. Since the fall position moved from the lifting side in the arc rotation direction to the opposite side of the left side can be secured and lifted by reversed arc rotation, the laundry lifting position and the falling position can be switched alternately on the left and right in each arc rotation drive. It can be achieved more reliably to further enhance the unwinding action of the laundry and further exert mechanical force on the laundry.
制御装置は、正逆弧回転駆動モードでの開始時の回転ドラムの弧回転を120度以上180度未満で行い、それ以降の弧回転を120度付近で行うことを特徴とすることにより、初期弧回転時に回転ドラムの下部範囲に静止している洗濯物を120度以上180度未満の弧回転で左右の初期弧回転側の上部まで持ち上げて回転ドラムの左右の反対側に落すことを確保し、それ以降の弧回転は120度として回転ドラムの左右一方側に寄って落ちた洗濯物を回転ドラムの同じ側の上部に持ち上げ、回転ドラムの左右反対の側に落す挙動を確実に達成することができる。   The control device performs the arc rotation of the rotating drum at the start of 120 degrees or more and less than 180 degrees at the start in the forward / reverse arc rotation drive mode, and performs the subsequent arc rotation at around 120 degrees, so that the initial Ensure that the laundry that is stationary in the lower part of the rotating drum during arc rotation is lifted to the upper part of the left and right initial arc rotating side by the arc rotation of 120 to 180 degrees and dropped to the opposite side of the rotating drum. The subsequent arc rotation is 120 degrees, and the laundry that has fallen toward the left and right sides of the rotating drum is lifted to the upper part on the same side of the rotating drum, and the behavior of dropping to the opposite side of the rotating drum is reliably achieved. Can do.
本発明によれば、洗濯工程およびすすぎ工程の少なくとも一方において、モータを駆動させ、回転ドラムの回転によって持ち上げられた洗濯物がその自重が勝る高さから落下する挙動を示す回転速度で回転ドラムを連続回転させる連続回転駆動モードないしは連続回転駆動モードの回転ドラムの連続回転を正逆交互に繰り返す正逆連続回転駆動モードを実行するようにし、連続回転駆動モードないしは正逆連続回転駆動モードに代る一部において、モータを急駆動させることで回転ドラムを急弧回転させ、回転ドラムの急弧回転による遠心力にて洗濯物が回転ドラム内面に貼り付いて回転ドラムの最下位置から最大限90度を超え180度未満の位置まで持ち上げられた後、モータの回転の急制動により、洗濯物がその慣性および自重により回転ドラム内面から剥がされるとともに回転ドラムの下部範囲の持ち上げ側と反対の側に落下する動作を、正逆交互に繰り返し行う正逆弧回転駆動モードを実行することにより、洗濯物を大きく連続に動かしむら無く洗う均一な洗い挙動を与えるとともに、洗濯物の解し作用を高めて絡みはもとより捩れや回転ドラム内面への貼り付きを防止し、洗濯物の取り出しが容易で洗濯物に皺が付くのを大幅に緩和することができる。また、洗濯物に機械力を及ぼすことができるし叩き作用のある洗濯物の落下回数を増大するので洗い効果を始めとする洗濯機が行う各工程での機能を実現できる。 According to the present invention, in at least one of the washing process and the rinsing process, the motor is driven, and the laundry is lifted by the rotation of the rotating drum. Continuous rotation drive mode for continuous rotation or continuous rotation drive mode in which continuous rotation of the rotating drum in continuous rotation drive mode is repeated forward and reverse alternately is executed, instead of continuous rotation drive mode or forward and reverse continuous rotation drive mode. In some cases, the rotating drum is suddenly rotated by suddenly driving the motor, and the laundry is stuck to the inner surface of the rotating drum by centrifugal force due to the rapid arc rotation of the rotating drum, and the maximum is 90 from the lowest position of the rotating drum. After being lifted to a position exceeding 180 degrees and less than 180 degrees, the laundry is caused by its inertia and dead weight due to sudden braking of the rotation of the motor. The operation of rolling fall together peeled from the drum inner surface to the side lifting side opposite to the lower range of rotary drum, the forward and reverse pivot rotation drive mode for repeating forward and reverse alternately by executing, laundry greatly to continuous Gives a uniform washing behavior that moves evenly, and improves the unwinding of the laundry to prevent twisting and sticking to the inner surface of the rotating drum, making it easy to take out the laundry and causing wrinkles on the laundry Can be greatly eased. In addition, since the mechanical force can be exerted on the laundry and the number of times the laundry having a hitting action is increased, functions in each process performed by the washing machine including the washing effect can be realized.
以下本発明の実施の形態に係るドラム式洗濯機につき図1〜図6を参照しながら説明し、本発明の理解に供する。なお、以下の説明は本発明の具体例であって、特許請求の範囲の記載の内容を限定するものではない。   Hereinafter, a drum type washing machine according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6 for understanding of the present invention. In addition, the following description is a specific example of this invention, Comprising: The content of description of a claim is not limited.
本実施の形態のドラム式洗濯機は既述した基本構成を有し、図1に示す操作パネル14からのモード設定や制御プログラムに従い、マイクロコンピュータを搭載した制御基板9などの制御装置によってモータ5、給水系7、排水系11、乾燥系13を自動制御して少なくとも洗浄工程、すすぎ工程、乾燥工程を行う機能を有している。なお、給水系7は電磁弁の開閉によって実線矢印で示すように適時に給水でき、また給水を利用して洗剤収容部の洗剤を水槽2内に適時に投入できるようになっている。排水系11は電磁弁の開閉によって洗濯工程終了時、すすぎ工程終了時など必要なときに一点鎖線矢印で示すように排水できるようになっている。乾燥系13は水槽2および回転ドラム4内の空気を送風機12によって図1、図2に示す破線矢印で示すように循環させる循環経路において、水槽2および回転ドラム4からの導入空気中の糸くずなどを捕集し除塵するフィルタ15、除塵後の導入空気を除湿する除湿部16、除湿後の空気を加熱して渇いた高温空気とする加熱部17を有し、送風機12は加熱部17の下流に配置し湿気の影響を受けにくくしている。図示例では除湿部16、加熱部17は圧縮機18により冷媒を循環されて循環空気と熱交換を行う蒸発器および凝縮器であり、空気調和機19を構成するものとしてある。しかし、これに限られることはない。   The drum type washing machine of the present embodiment has the basic configuration described above, and the motor 5 is controlled by a control device such as a control board 9 equipped with a microcomputer in accordance with the mode setting and control program from the operation panel 14 shown in FIG. The water supply system 7, the drainage system 11, and the drying system 13 are automatically controlled to perform at least a cleaning process, a rinsing process, and a drying process. The water supply system 7 can supply water in a timely manner as indicated by a solid arrow by opening and closing the electromagnetic valve, and the water supply can be used to supply the detergent in the detergent container into the water tank 2 in a timely manner. The drainage system 11 can drain as shown by a one-dot chain line arrow when necessary, such as at the end of the washing process or at the end of the rinsing process, by opening and closing the electromagnetic valve. The drying system 13 is a waste thread in the air introduced from the water tank 2 and the rotating drum 4 in a circulation path in which the air in the water tank 2 and the rotating drum 4 is circulated by the blower 12 as indicated by the broken-line arrows shown in FIGS. A filter 15 that collects and removes dust, a dehumidifying part 16 that dehumidifies the introduced air after dust removal, and a heating part 17 that heats the air after dehumidification to make dry high-temperature air. Located downstream, it is less susceptible to moisture. In the illustrated example, the dehumidifying unit 16 and the heating unit 17 are an evaporator and a condenser that circulate refrigerant through a compressor 18 and exchange heat with circulating air, and constitute an air conditioner 19. However, it is not limited to this.
回転ドラム4は回転軸4aに水槽2上のモータ5が直結されて、水槽2と共に、開口側から底部側に向けて回転軸方向を水平方向から角度θ=20±10度に傾斜させて設置し、水平方向での設置の場合に比べ、回転ドラム4を同じ高さに設置しても開口が斜め上向きとなることで屈んだりする無理な姿勢を取らずに洗濯物を容易に出し入れできる。特に、本発明者等の経験からは傾斜角度θは20±10度とすることにより、子供(幼児を除く)から大人までの身長差があっても、車椅子利用者であっても、洗濯物の出し入れの作業が最も行い易い状態が得られる。また、回転ドラム4内に給水された水が背面側に溜まって少ない水量でも深い貯水状態が得られる利点もある。しかし、既述したように水平方向での設置の場合に比べ洗濯物が回転軸方向にも低い位置に集まりやすい傾向を示す。   The rotating drum 4 is installed with the motor 5 on the water tank 2 directly connected to the rotating shaft 4a, and along with the water tank 2, the rotating shaft direction is inclined from the horizontal direction to the angle θ = 20 ± 10 degrees from the opening side to the bottom side. However, compared with the case of installation in the horizontal direction, even if the rotary drum 4 is installed at the same height, the laundry can be easily put in and out without taking an unreasonable posture in which the opening is inclined upward. In particular, from the experience of the present inventors, by setting the inclination angle θ to 20 ± 10 degrees, even if there is a difference in height from a child (excluding infants) to an adult, even a wheelchair user, laundry It is possible to obtain a state in which the operation of loading and unloading is most easily performed. Further, there is an advantage that a deep water storage state can be obtained even with a small amount of water because water supplied into the rotating drum 4 is accumulated on the back side. However, as described above, the laundry tends to gather at a lower position in the rotation axis direction than in the case of installation in the horizontal direction.
このような傾向性も含め、絡み、捩れの発生を大きく改善し機械力の働きを高めながら皺も生じ難くすることを意図して、本実施の形態では、開口側から底部側に向けて回転軸方向が水平方向から下向き傾斜となるようにして設置した有底円筒形の回転ドラム4に対する制御基板9による駆動制御に関し、回転ドラム4の90度を超え180度未満での急速度での弧回転および急激な制動を行う弧回転駆動モードを備えたものとしている。これによれば、回転ドラム4の90度を超え180度未満の急速度での弧回転および急激な制動により洗濯物21を最大限90度を超えて180度未満まで持ち上げられるし、洗濯物21の持ち上げの最終時段階の急激な制動により制動状態が生じて洗濯物21をその慣性および自重により回転ドラム4内面から剥がしてその自重によって落すことが確実に達成できるので、洗濯物21が絡むことを防ぎながら解し作用を高められるし、機械力を洗濯物21に及ぼすことができるので洗浄性能を高めることができる。さらに、弧回転駆動モードの正方向の急正弧回転と逆方向の急逆弧回転とを交互に繰り返すことで正逆弧回転駆動モードとし、これによって、正逆交互の急弧回転駆動によって洗濯物21の持ち上げ位置、落下位置を毎回の弧回転駆動において左右交互に入れ換えられるので、洗濯物21が絡むことを防ぎながら解し作用をさらに高められるとともに、機械力を洗濯物21に及ぼす回数を増やすことができるので洗浄性能を高めることができる。   Including this tendency, in this embodiment, the rotation from the opening side to the bottom side is intended to greatly improve the occurrence of entanglement and torsion and increase the mechanical force to make it difficult for wrinkles to occur. Regarding drive control by the control board 9 for the bottomed cylindrical rotary drum 4 installed so that the axial direction is inclined downward from the horizontal direction, the arc of the rotary drum 4 at a rapid speed of more than 90 degrees and less than 180 degrees It is assumed that an arc rotation drive mode for performing rotation and rapid braking is provided. According to this, the laundry 21 can be lifted up to more than 90 degrees and less than 180 degrees by the arc rotation at a rapid speed exceeding 90 degrees and less than 180 degrees and sudden braking, and the laundry 21 Since the braking state is caused by the sudden braking at the final stage of the lifting of the laundry, the laundry 21 can be reliably peeled off from the inner surface of the rotating drum 4 by its inertia and its own weight and dropped by its own weight, so that the laundry 21 is entangled. It is possible to enhance the unraveling action while preventing the above-mentioned problem, and the mechanical force can be exerted on the laundry 21, so that the washing performance can be enhanced. Further, the forward / reverse arc rotation drive mode is established by alternately repeating the forward / reverse rapid arc rotation in the forward direction and the reverse reverse arc rotation in the reverse direction. Since the lifting position and the falling position of the object 21 can be switched alternately in the left and right directions in each arc rotation drive, the operation can be further improved while preventing the laundry 21 from getting tangled, and the number of times the mechanical force is exerted on the laundry 21 can be increased. Since it can increase, cleaning performance can be improved.
上記の弧回転モードおよび正逆弧回転駆動モードについて、そのときの洗濯物21の動きを図4を用いて説明する。なお、この図4は、実際の洗濯物21の動きを説明するための模式図であり、特許請求の範囲の記載の内容を限定するものではない。このような回転ドラム4の90度を超え180度未満の弧回転により図4に示す洗濯物21を図4(a)の丸付き符号2、4、6に例示する破線位置から実線位置へと最大限90度を超えて180度未満まで持ち上げられる。また、この急弧回転駆動を図4(a)に示す丸付き符号2、4、6、4、6・・の順に交互に行うことで急正弧回転駆動と急逆弧回転駆動とし、図4(a)に示す丸付き符号3、5のように、洗濯物21の持ち上げの最終時段階で回転の反転のための制動状態が生じて洗濯物21をその慣性および自重により回転ドラム4の内面から確実に剥がしてその自重により破線位置から実線位置への矢印で示すような放物線を描いて持ち上げ側と左右反対の側に落すことができる。しかも、正逆交互の弧回転駆動によって洗濯物21の持ち上げ位置、落下位置を毎回の弧回転駆動において図4(b)に示すように左右交互に入れ換えられるので、洗濯物21の解し作用を高められるし、機械力を洗濯物21に及ぼすことができる。   With respect to the arc rotation mode and the forward / reverse arc rotation drive mode, the movement of the laundry 21 at that time will be described with reference to FIG. In addition, this FIG. 4 is a schematic diagram for demonstrating the motion of the actual laundry 21, and does not limit the content of description of a claim. By rotating the rotating drum 4 in an arc exceeding 90 degrees and less than 180 degrees, the laundry 21 shown in FIG. The maximum lift is 90 degrees and less than 180 degrees. In addition, this sudden arc rotation drive is alternately performed in the order of circled symbols 2, 4, 6, 4, 6,... Shown in FIG. As indicated by the circled symbols 3 and 5 shown in FIG. 4A, a braking state for reversal of rotation occurs at the final stage of lifting the laundry 21, and the laundry 21 is caused to rotate by the inertia and its own weight. It can be surely peeled off from the inner surface, and by its own weight, a parabola as shown by the arrow from the broken line position to the solid line position can be drawn and dropped to the side opposite to the lifting side. In addition, the lifting position and the falling position of the laundry 21 can be alternately switched left and right as shown in FIG. The mechanical force can be exerted on the laundry 21.
この結果、回転ドラム4の弧回転により洗濯物21を回転ドラム4の左右片側上部まで持ち上げることを正逆交互に行い、洗濯物21の持ち上げの最終時点ないしはその近傍での減速ないしは制動状態にて洗濯物21をその慣性および自重により強制的に剥がし自重によって左右反対側に落すことの正逆反転した繰り返しにより、弧回転ごとに洗濯物21の持ち上げ位置、落下位置を左右交互に入れ換え、洗濯物21の解し作用を高めて絡みはもとより捩れや回転ドラム4の内面への貼り付きを防止し、洗濯物21の取り出しが容易で洗濯物21に皺が付くのを大幅に緩和することができる。また、洗濯物21に機械力を及ぼすことができるし叩き作用のある洗濯物21の落下回数を大幅に増大するので洗い効果を始めとする洗濯機が行う各工程での機能を実現できる。   As a result, the laundry 21 is lifted up to the upper left and right sides of the rotating drum 4 by rotating the arc of the rotating drum 4 alternately in the forward and reverse directions, and the laundry 21 is lifted or decelerated or braked in the vicinity thereof. The laundry 21 is forcibly peeled off by its inertia and its own weight, and dropped by moving its weight to the opposite side of the left and right. The unwinding action of 21 can be enhanced to prevent twisting and sticking to the inner surface of the rotating drum 4 as well as entanglement, and the washing 21 can be easily taken out and the washing 21 can be greatly reduced from wrinkling. . In addition, since the mechanical force can be exerted on the laundry 21 and the number of drops of the laundry 21 having a hitting action is greatly increased, functions in each process performed by the washing machine including the washing effect can be realized.
また、回転ドラム4の弧回転は、洗濯物21が回転ドラム4の最下位置から90度付近に到達するまでに洗濯物21が回転ドラム4の内面に貼り付く急加速度で駆動することにより、洗濯物21が回転ドラム4の最下位置からの持ち上がりにより回転ドラム4の回転に追随できず自重により落下しやすくなる90度付近までに洗濯物21を回転ドラム4の内面に貼り付かせる急加速度によって、洗濯物21を所定の持ち上げ位置まで滑り無く、従って、回転ドラム4の回転速度に見合う慣性を付与して確実に持ち上げ、前記制動状態への変化時点での慣性および自重による剥がし、洗濯物21の自重で持ち上げ側と反対の側への落下、による洗濯物21の持ち上げ位置、落下位置の左右入れ換えをより確実に達成できる。   Further, the arc rotation of the rotating drum 4 is driven by the rapid acceleration that the laundry 21 sticks to the inner surface of the rotating drum 4 until the laundry 21 reaches around 90 degrees from the lowest position of the rotating drum 4. Rapid acceleration that causes the laundry 21 to adhere to the inner surface of the rotating drum 4 by about 90 degrees where the laundry 21 cannot follow the rotation of the rotating drum 4 due to the lifting of the rotating drum 4 from the lowest position and easily falls due to its own weight. Therefore, the laundry 21 does not slide to the predetermined lifting position, and therefore, the inertia corresponding to the rotational speed of the rotary drum 4 is given and reliably lifted, and the laundry is peeled off by the inertia and its own weight when changing to the braking state. The lifting position of the laundry 21 and the left / right switching of the dropping position due to the fall of the weight 21 on the side opposite to the lifting side can be achieved more reliably.
さらに、前記回転ドラム4の弧回転方向の正逆切り換えは、回転ドラム4の弧回転が90度を超え180度未満で急激な制動動作を挟んで行うことにより、洗濯物21の貼り付きを保証する急加速度を満足する条件においても弧回転方向を正逆に急反転させて、洗濯物21の弧回転最終段階にて急加速度時の慣性および自重により確実に剥がして持ち上げ側とは反対の側に落下させられ、洗濯物21に対する機械力付与のロスを抑制することができる。従って、より短時間に洗濯機の各工程効果を得ながら絡みや捩れを防止し、皺の付きを緩和することができる。   Further, the forward / reverse switching of the rotating direction of the arc of the rotating drum 4 is performed by sandwiching a sudden braking operation when the arc rotation of the rotating drum 4 is more than 90 degrees and less than 180 degrees, thereby guaranteeing that the laundry 21 is stuck. Even under conditions that satisfy the sudden acceleration, the direction of arc rotation is suddenly reversed in the forward and reverse directions, and the laundry 21 is reliably peeled off by the inertia and dead weight at the time of sudden acceleration at the final stage of arc rotation, and the side opposite to the lifting side The mechanical force applied to the laundry 21 can be suppressed from being lost. Accordingly, it is possible to prevent entanglement and twisting while reducing the effect of each step of the washing machine in a shorter time and to reduce wrinkling.
以上のような洗濯物21の挙動から見ると、本実施の形態の上記正逆弧回転駆動モードは、また、前記回転ドラム4の急弧回転による遠心力にて洗濯物21を回転ドラム4の内面に貼り付かせて上方に持ち上げた後、回転ドラム4の急制動により、この持ち上げた洗濯物21をその慣性により回転ドラム4の内面から剥がしてその自重により落下させる駆動を、正逆交互に繰り返す正逆弧回転駆動モードを備えたものとして捉えることができる。   In view of the behavior of the laundry 21 as described above, the forward / reverse arc rotation drive mode of the present embodiment also causes the laundry 21 to move to the rotating drum 4 by centrifugal force due to the sudden arc rotation of the rotating drum 4. After affixing to the inner surface and lifting it upward, the drive of causing the laundry 21 to be peeled off from the inner surface of the rotating drum 4 by its inertia and dropping by its own weight by sudden braking of the rotating drum 4 alternately forward and reverse. It can be understood as having a repetitive forward and reverse arc rotation drive mode.
また、よりよくは、回転ドラム4の急弧回転による遠心力にて洗濯物21を回転ドラム4の内面に貼り付かせて回転ドラム4の上部範囲まで持ち上げた後、回転ドラム4の急制動により、洗濯物21をその慣性により回転ドラム4の内面から剥がしてその慣性および自重により回転ドラム4の下部範囲の持ち上げ側と反対の側に落下させる駆動を、正逆交互に繰り返す正逆弧回転駆動モードを備えたものともなる。   More preferably, the laundry 21 is attached to the inner surface of the rotating drum 4 by the centrifugal force caused by the rapid arc rotation of the rotating drum 4 and lifted up to the upper range of the rotating drum 4, and then the sudden braking of the rotating drum 4 is performed. The forward / reverse arc rotation drive that repeats alternately the forward and reverse driving in which the laundry 21 is peeled off from the inner surface of the rotating drum 4 due to its inertia and dropped to the side opposite to the lifting side of the lower range of the rotating drum 4 due to its inertia and its own weight. It also has a mode.
これらの場合も、既述した理由によって回転ドラム4の正弧回転と逆弧回転とは180度未満で繰り返すのが好適であり、90度を超えて行うのが最良となる。   Also in these cases, it is preferable to repeat the forward arc rotation and the reverse arc rotation of the rotating drum 4 at less than 180 degrees for the reasons described above, and it is best to perform the rotation beyond 90 degrees.
ここで、直径500±50mmの回転ドラム4での、重力をドラムの中心方向と接線方向に分解分解したときの、中心方向の力と遠心力が釣り合うドラム回転数につき、
mrω2=mgcosθ
によって算出したところ、図5に示す通りである。図5の丸付き符号1で示す停止時から丸付き符号2で示す付近の回転数50rpm程度に至って洗濯物21の貼り付きが確実に達成される。また、それに必要な回転ドラム4の回転角θは90度弱であり、既述の条件を満足している。また、既述では、洗濯物21の貼り付けによる持ち上げは回転ドラム4の90度を超え180度までとしたが、ここでの例では、丸付き符号2で示す回転角125度付近としてあり、この125度付近で「張付きレベル」と記載した太い実線と回転ドラム4の回転の実線とが交わり、それ以降、回転ドラム4の回転の実線が「張付きレベル」と記載した太い実線とより下側にあるため、回転角125度付近から丸付き符号3に達する回転角140度付近で停止させる制動により洗濯物21に働く回転慣性および自重によって回転ドラム4の内面から剥がれる最大回転数45rpmと少しの減速状態によっても剥がれることが分かる。
Here, in the rotating drum 4 having a diameter of 500 ± 50 mm, when the gravity is disassembled and decomposed in the direction of the center and the tangential direction of the drum,
mrω 2 = mg cos θ
Is calculated as shown in FIG. From the time of the stop indicated by the circled symbol 1 in FIG. 5 to the rotation speed of about 50 rpm in the vicinity indicated by the circled symbol 2, the laundry 21 is reliably adhered. Further, the rotation angle θ of the rotating drum 4 necessary for this is less than 90 degrees, which satisfies the above-described conditions. In addition, in the above description, the lifting by sticking the laundry 21 is over 90 degrees of the rotating drum 4 and up to 180 degrees, but in this example, the rotation angle is around 125 degrees indicated by a circled symbol 2, Near this 125 degrees, the thick solid line described as “sticking level” intersects with the solid line of rotation of the rotating drum 4, and thereafter, the solid line of rotation of the rotating drum 4 corresponds to the thick solid line described as “sticking level”. Since it is on the lower side, the maximum rotation speed 45 rpm that is peeled off from the inner surface of the rotating drum 4 due to the rotation inertia and its own weight acting on the laundry 21 by braking that stops at a rotation angle of about 140 degrees reaching the circled symbol 3 from about the rotation angle of 125 degrees. It can be seen that the film is peeled off even by a slight deceleration state.
このような算出および経験から、正逆弧回転駆動モードでの弧回転の最大回転速度は40rpm以上であり、洗濯物21の剥がしないしは制動は最大回転速度で行われることにより、正逆弧回転駆動モードによる実効が得られる。また、正逆弧回転駆動モードでの洗濯物21の剥がしないしは、例えば図示例のように回転角125度〜140度の範囲で行う制動で行うことができる。具体的には、40rpm以上で行う弧回転からの減速状態により40rpm以上での回転を続けようとする洗濯物21の回転慣性および自重によって40rpm未満への減速度に応じた強制剥がし力を洗濯物21に与え落下させられる。   From such calculation and experience, the maximum rotation speed of the arc rotation in the forward / reverse arc rotation drive mode is 40 rpm or more, and the laundry 21 is not peeled off or braking is performed at the maximum rotation speed. Effective by mode is obtained. Further, the laundry 21 is not peeled off in the forward / reverse arc rotation drive mode, for example, by braking performed in a range of a rotation angle of 125 degrees to 140 degrees as in the illustrated example. Specifically, the forced peeling force corresponding to the deceleration to less than 40 rpm due to the rotational inertia and the own weight of the laundry 21 that tries to continue the rotation at 40 rpm or more due to the deceleration state from the arc rotation performed at 40 rpm or more is performed on the laundry. 21 is dropped.
さらに、正逆弧回転駆動モードでの図4(a)丸付き符号2で示すように初期弧回転は140度近傍で行い、図4(a)丸付き符号3〜6に示すそれ以降の弧回転は図5に実線で示すように140度近傍〜30度近傍の範囲で行うことにより、初期弧回転時に図4(a)の丸付き符号1に実線で示し、丸付き符号2に破線で示すように回転ドラム4の下部範囲に静止している洗濯物21を120度近傍の弧回転で左右の初期弧回転側の上部まで持ち上げて120度〜140度の間で制動し、回転ドラム4の左右の反対側、具体的には回転ドラム4のほぼ直径線上に落すことを確保し、それ以降の弧回転は140度近傍〜30度近傍の110度として回転ドラム4の左右一方側に寄って、具体的にはほぼ30度よって落ちた洗濯物21を回転ドラム4の同じ側の上部、具体的にはほぼ150度位置に持ち上げ、回転ドラム4の左右反対の側に落す挙動をほぼ対称的に、かつ回転ドラム4の直径分となる最大の落下距離を得て確実に達成することができる。これにより洗濯物21の解しと叩きの効果を高められる。   Further, in the forward / reverse arc rotation drive mode, the initial arc rotation is performed in the vicinity of 140 degrees as shown by the circled reference numeral 2 in FIG. 4A, and the subsequent arcs shown in FIG. As shown by the solid line in FIG. 5, the rotation is performed in the range of around 140 degrees to 30 degrees, so that during initial arc rotation, the circled code 1 in FIG. As shown, the laundry 21 stationary in the lower range of the rotating drum 4 is lifted up to the upper part on the left and right initial arc rotating side by arc rotation in the vicinity of 120 degrees and braked between 120 degrees and 140 degrees. It is ensured that it falls on the opposite side of the left and right sides, specifically, approximately on the diameter line of the rotating drum 4, and the subsequent arc rotation approaches 110 degrees from about 140 degrees to about 30 degrees and approaches the left and right sides of the rotating drum 4. Specifically, the laundry 21 dropped by about 30 degrees is rotated The upper part of the drum 4 is lifted to the upper part of the same side, specifically about 150 degrees and dropped to the opposite side of the rotating drum 4 in a symmetrical manner, and the maximum falling distance corresponding to the diameter of the rotating drum 4 is set. Can be achieved reliably. Thereby, the effect of unraveling and hitting the laundry 21 can be enhanced.
このような左右バランスのよい洗濯物21の挙動を実現するには、回転ドラム4の回転方向の正逆切り換えのための停止または反転は、回転ドラム4の内面に貼り付いた洗濯物21が落下するまでに行うことが好適であり、洗濯物21の落下位置が弧回転方向の持ち上げ側から左右反対の側に移った落下位置を確保して反転した弧回転による持ち上げが行えるので、洗濯物21の持ち上げ位置、落下位置の毎回の弧回転駆動における左右交互に入れ換えをよりバランスよく確実に達成して洗濯物21の解し作用をさらに高め、機械力をさらに洗濯物に及ぼすことができる。また、洗濯物21の持ち上げ位置からの剥がしを瞬時に行うほど好適であり、それには制動が不可欠であるが、このような制動には機械的な制動と電気的な制動とがあり、電気的な制動を採用する方が種類が多いし機構的な複雑さを招かないしメンテナンスフリーのメリットがある。   In order to realize such a behavior of the laundry 21 with a good left / right balance, the laundry 21 attached to the inner surface of the rotating drum 4 is dropped when the rotating or rotating direction of the rotating drum 4 is stopped or reversed. It is preferable that the laundry 21 is lifted by the arc rotation in which the fall position of the laundry 21 is shifted from the lifting side in the arc rotation direction to the opposite side of the arc rotation and the reverse rotation is performed. The left and right alternating rotations at each lifting and falling position of the arc rotation drive can be achieved in a more balanced and reliable manner, further improving the unwinding action of the laundry 21 and further exerting mechanical force on the laundry. In addition, it is preferable that the laundry 21 is instantly peeled off from the lifting position, and braking is indispensable. However, such braking includes mechanical braking and electrical braking. There are more types of brakes that use proper braking, which does not incur mechanical complexity and has a maintenance-free merit.
なお、発明者の確認によると、正逆弧回転駆動モードでの弧回転の最大回転速度が40rpm未満の場合、回転ドラム4の制動による洗濯物21に働く回転慣性では洗濯物21は回転ドラム4の内面から剥がれる挙動は発生せず、回転ドラム4の逆転時も洗濯物21が回転ドラム4の内面に貼り付いたまま回転ドラム4と一緒に回転するという状態となってしまう。   According to the inventor's confirmation, when the maximum rotation speed of the arc rotation in the forward / reverse arc rotation drive mode is less than 40 rpm, the laundry 21 is rotated by the rotating drum 4 in the rotational inertia acting on the laundry 21 by braking of the rotating drum 4. The behavior of peeling off from the inner surface of the rotating drum 4 does not occur, and the laundry 21 rotates with the rotating drum 4 while being stuck to the inner surface of the rotating drum 4 even when the rotating drum 4 is reversed.
さらに、回転ドラム4の回転角度が90度以下の場合は、洗濯物21を持ち上げることができず、また、回転ドラム4の回転角度が180度以上の場合は、回転ドラム4の逆転時、洗濯物21が180度の位置(最上部)を通り越してしまい、図4(b)に示すような洗濯物21が左右交互に入れ換えられるといった動作を行わないものとなってしまう。   Furthermore, when the rotation angle of the rotary drum 4 is 90 degrees or less, the laundry 21 cannot be lifted, and when the rotation angle of the rotary drum 4 is 180 degrees or more, the laundry 21 is washed when the rotary drum 4 is reversed. The article 21 passes through the position of 180 degrees (the uppermost part), and the operation such that the laundry 21 as shown in FIG.
ところで、以上のような回転ドラム4の正逆弧回転駆動モードを実現するにはモータ5に掛かる駆動負荷が非常に大きく、モータ5の極数を増大するなど大型化の原因になるが、本実施の形態は図1、図3に示すように水槽2の底部外面に固定したステータ5aに対して回転軸4aに直結したインナロータ5b1、アウタロータ5b2をステータ5aの内周側および外周側双方に配置してステータ5aに対し内外周から作用し合うようにしてあり、モータ5の大型化の問題なく駆動パワーを倍増でき、小さなモータ5によって急反転を伴う正逆弧回転駆動モードを難なく実行できる。   By the way, in order to realize the forward / reverse arc rotation driving mode of the rotating drum 4 as described above, the driving load applied to the motor 5 is very large, which causes an increase in the number of poles of the motor 5. In the embodiment, as shown in FIGS. 1 and 3, an inner rotor 5b1 and an outer rotor 5b2 directly connected to a rotating shaft 4a with respect to a stator 5a fixed to the outer surface of the bottom of the water tank 2 are arranged on both the inner peripheral side and the outer peripheral side of the stator 5a. Thus, the stator 5a is allowed to act from the inner and outer circumferences, so that the drive power can be doubled without the problem of an increase in the size of the motor 5, and the forward / reverse arc rotation drive mode with sudden reversal can be executed without difficulty by the small motor 5.
これによって、図5に示すような左右バランスのよい回転速度特性を持った急反転を伴う正逆弧回転駆動モードを永続的にも実行できる技術が実現し、回転ドラム4の正弧回転、逆弧回転のいずれにおいても丸付き符号3、5で示す回転ドラム4のX′、X″で示すほぼ同じ位置に洗濯物21を落下させ、その落下時点からほぼ同じ回転角位置90度で洗濯物21の貼り付き域に達した後、ほぼ同じ回転角で丸付き符号4、6の位置に達して急制動による洗濯物21の回転ドラム4からの剥がしを達成している。また、丸付き符号4で示す剥がれ位置から丸付き符号6で示す剥がれ位置までの所要時間は0.8秒程度であり、丸付き符号5で示す剥がれ位置から丸付き符号3で示す剥がれ位置までの所要時間は0.8秒程度であり、双方等しい。   As a result, a technique capable of permanently executing the forward / reverse arc rotation drive mode with rapid reversal with a rotational speed characteristic with a good left / right balance as shown in FIG. 5 is realized. In any of the arc rotations, the laundry 21 is dropped at substantially the same position indicated by X ′ and X ″ of the rotating drum 4 indicated by the circled signs 3 and 5, and the laundry is at the same rotational angle position 90 degrees from the time of the fall. After reaching the sticking area 21, the positions of the circled signs 4 and 6 are reached at substantially the same rotation angle, and the laundry 21 is peeled off from the rotating drum 4 by sudden braking. The required time from the peeling position indicated by 4 to the peeling position indicated by the circled symbol 6 is about 0.8 seconds, and the required time from the peeling position indicated by the circled symbol 5 to the peeling position indicated by the circled symbol 3 is 0. . About 8 seconds .
このような正逆弧回転駆動モードを、洗濯工程およびすすぎ工程において、少なくとも工程中の連続回転駆動モードないしは回転ドラムの回転によって持ち上がられた洗濯物がその自重が勝る高さから落下する挙動を示す回転速度で前記回転ドラムの連続回転を正逆交互に繰り返す正逆連続回転駆動モードに代る一部または全体において行うことで、洗濯物21に持ち上げと落下の挙動を正逆に繰り返し与えて、洗濯物21に対し機械作用を及ぼしながら洗濯物21の解し作用、叩き作用を高めることができ、洗濯時間の短縮が図れる上、脱水工程後の洗濯物21は図7(a)(b)に示すような従来見られた絡みや捩れが大きく改善され取り出しやすいし、事後処理が容易である。また皺もあまり残らない仕上がり状態となり皺取りの手間が大きく緩和された。   Such a forward / reverse arc rotation drive mode exhibits a behavior in which the laundry lifted by at least the continuous rotation drive mode in the process or the rotation of the rotating drum falls from the height at which its own weight wins in the washing process and the rinsing process. By performing a part or the whole in place of the forward / reverse continuous rotation drive mode in which the continuous rotation of the rotating drum is alternately forward / reverse alternately at a rotational speed, the laundry 21 is repeatedly given a lifting / falling behavior in forward / reverse directions, While exerting a mechanical action on the laundry 21, it is possible to enhance the unwinding and tapping action of the laundry 21, thereby shortening the washing time, and the laundry 21 after the dehydration step is shown in FIGS. 7 (a) and 7 (b). The entanglement and twist seen in the prior art are greatly improved and easy to take out, and post-processing is easy. In addition, the finished product was not left too much, and the labor of removing the product was greatly eased.
なお、脱水工程後に実行すると叩き作用は皺伸ばしになりさらに皺の少ない仕上がり状態が得られるし、脱水時の回転ドラム4内面への貼り付きから洗濯物21を開放し、図6(a)(b)に示す例のようにふわっとしているのでより取り出しやすく、かつ事後処理が楽であり、皺取りにも手間が余り掛からなくなる。特に、脱水後の乾燥工程で実施すると、叩きによる皺伸ばしがさらに促進される。しかも、正逆弧回転駆動モードでの駆動負荷が高いことに対し、それに代えて正逆連続回転駆動モードを実施した分だけ機械負荷を軽減でき、洗濯物21に水が含んで駆動負荷が大きくなる洗濯工程やすすぎ工程において有効である。また、両モードによって洗濯やすすぎ中の洗濯物21に異なった2通りの挙動、具体的には正逆弧回転駆動モードによってはしっかりした手もみ洗いの挙動を、正逆連続回転駆動モードによっては洗濯物を大きく連続に動かしむら無く洗う均一な洗い挙動を与えられる。   In addition, if it performs after a dehydration process, a hit | damage action will extend a wrinkle and the finish state with much less wrinkles will be obtained, and the laundry 21 will be open | released from sticking to the rotating drum 4 inner surface at the time of a dehydration, FIG. Since it is soft as in the example shown in b), it is easier to take out and the post-processing is easier, so that much effort is not required for scraping. In particular, when carried out in the drying step after dehydration, the wrinkle stretching by tapping is further promoted. Moreover, in contrast to the high drive load in the forward / reverse arc rotation drive mode, the mechanical load can be reduced by the amount of execution of the forward / reverse continuous rotation drive mode instead, and the laundry 21 contains water and the drive load increases. It is effective in the washing process and the rinsing process. In addition, depending on the two modes, two different behaviors for the laundry 21 that is being washed and rinsed, specifically, a firm hand-washing behavior depending on the forward / reverse arc rotation drive mode, and depending on the forward / reverse continuous rotation drive mode, Uniform washing behavior can be given in which the laundry is moved continuously and washed evenly.
なお、モータ5のパワーアップはできているが、過剰なパワーアップは不経済であるので、第1のドラム駆動指示によるモータ5の駆動にて、モータ5の脱調限界を超えるとき、上限負荷を超えない第2のドラム駆動指示によりモータ5を駆動することにより、その時々で駆動負荷に違いがあっても、洗濯物21に対する持ち上げ、剥がしの挙動を設定通りに得られる回転ドラム4の回転特性を保証し、パワーアップの上限を抑えられる。それには、例えば、回転ドラム4の回転速度をモニタしてフィードバック制御すればよい。   Although the motor 5 is powered up, excessive power-up is uneconomical. Therefore, when the motor 5 is driven by the first drum driving instruction and the step-out limit of the motor 5 is exceeded, the upper limit load is exceeded. The rotation of the rotating drum 4 can be obtained by driving the motor 5 in accordance with the second drum driving instruction not exceeding the range, so that the lifting and peeling behavior of the laundry 21 can be obtained as set, even if the driving load varies from time to time. The characteristics are guaranteed and the upper limit of power-up can be suppressed. For this purpose, for example, the rotational speed of the rotating drum 4 may be monitored and feedback controlled.
また、経過時間または洗濯物21の量により、回転ドラム4の駆動を変更することにより、洗濯の進行による洗濯条件の変化または洗濯物21の量による駆動負荷の違いに対応した洗濯物21に最適な回転ドラム4の駆動ができ、洗濯物21の量は既に知られた各種検知方法を採用すればよい。   Further, by changing the driving of the rotating drum 4 according to the elapsed time or the amount of the laundry 21, the laundry 21 is optimal for the laundry 21 corresponding to the change in the washing condition due to the progress of the washing or the difference in the driving load due to the amount of the laundry 21. The rotary drum 4 can be driven, and the amount of the laundry 21 may be determined by various known detection methods.
回転ドラムを水平方向または傾斜して設置したドラム式洗濯機に実用して、洗濯物の絡みや捩れを防止しながら洗濯効果を高め、しかも、洗濯物の皺付きも防止することができる。   It is practically used in a drum-type washing machine in which a rotating drum is installed in a horizontal direction or inclined, and the washing effect is enhanced while preventing the tangling and twisting of the laundry, and the wrinkle of the laundry can be prevented.
本発明の実施の形態に係るドラム式洗濯機の要部構成を示す断面図である。It is sectional drawing which shows the principal part structure of the drum type washing machine which concerns on embodiment of this invention. 図1のドラム式洗濯機の内部を見た背面図である。It is the rear view which looked at the inside of the drum type washing machine of FIG. 図1のドラム式洗濯機のモータ取り付け部分のほぼ半部を示す断面図である。It is sectional drawing which shows the substantially half part of the motor attachment part of the drum type washing machine of FIG. (a)図1のドラム式洗濯機での正逆弧回転駆動モードの工程模式図、(b)正逆弧回転駆動モードでの洗濯物の持ち上げ位置および落下位置の左右入れ替わりを示す説明用の模式図である。(A) Process schematic diagram of forward / reverse arc rotation drive mode in drum-type washing machine of FIG. 1, (b) Explanatory view showing left and right interchange of laundry lifting position and fall position in forward / reverse arc rotation drive mode It is a schematic diagram. 図1のドラム式洗濯機での正逆弧回転駆動モードを理想的に実現するための、回転ドラム内面への洗濯物の貼り付きと剥がしに対する回転特性図である。FIG. 2 is a rotation characteristic diagram with respect to sticking and peeling of the laundry on the inner surface of the rotating drum for ideally realizing the forward and reverse arc rotation driving mode in the drum type washing machine of FIG. 1. 図4、5に示す実施例での正逆弧回転駆動モードを脱水工程後に行った後の洗濯物の2つの状態例を示す模写図である。FIG. 6 is a copy diagram showing two state examples of the laundry after the forward / reverse arc rotation drive mode in the embodiment shown in FIGS. 従来技術に係るドラム式洗濯機での脱水工程後の洗濯物の2つの状態例を示す模写図である。It is a copy figure which shows two example states of the laundry after the spin-drying | dehydration process in the drum type washing machine which concerns on a prior art.
符号の説明Explanation of symbols
1 筐体
2 水槽
3 孔
4 回転ドラム
5 モータ
6 扉
7 給水系
9 制御基板
11 排水系
12 送風機
13 乾燥系
14 操作パネル
DESCRIPTION OF SYMBOLS 1 Case 2 Water tank 3 Hole 4 Rotating drum 5 Motor 6 Door 7 Water supply system 9 Control board 11 Drain system 12 Blower 13 Drying system 14 Operation panel

Claims (5)

  1. 有底円筒形に形成されモータにより回転駆動される回転ドラムを、開口する正面側から底部となる背面側に向けて回転軸方向が水平または水平方向から下向き傾斜となるようにして水槽内に設置し、前記モータ等を制御して洗濯、すすぎ、脱水等の各工程を実行する制御装置を有するドラム式洗濯機であって、
    前記制御装置は、洗濯工程およびすすぎ工程の少なくとも一方において、前記モータを駆動させ、前記回転ドラムの回転によって持ち上げられた前記洗濯物がその自重が勝る高さから落下する挙動を示す回転速度で前記回転ドラムを連続回転させる連続回転駆動モードないしは前記連続回転駆動モードの前記回転ドラムの連続回転を正逆交互に繰り返す正逆連続回転駆動モードを実行するようにし、前記連続回転駆動モードないしは前記正逆連続回転駆動モードに代る一部において、前記モータを急駆動させることで前記回転ドラムを急弧回転させ、前記回転ドラムの急弧回転による遠心力にて洗濯物が前記回転ドラム内面に貼り付いて前記回転ドラムの最下位置から最大限90度を超え180度未満の位置まで持ち上げられた後、前記モータの回転の急制動により、前記洗濯物がその慣性および自重により前記回転ドラム内面から剥がされるとともに前記回転ドラムの下部範囲の持ち上げ側と反対の側に落下する動作を、正逆交互に繰り返し行う正逆弧回転駆動モードを実行することを特徴とするドラム式洗濯機。
    A rotating drum that is formed in a bottomed cylinder and is driven to rotate by a motor is installed in the aquarium so that the direction of the rotation axis is horizontal or inclined downward from the horizontal direction from the front side that opens to the back side that is the bottom. And a drum-type washing machine having a control device for controlling the motor and the like to execute each step of washing, rinsing, dehydrating, etc.
    The control device drives the motor in at least one of a washing process and a rinsing process, and the laundry is lifted by the rotation of the rotating drum at a rotational speed indicating a behavior in which the laundry falls from a height where its own weight is superior. A continuous rotation drive mode in which the rotating drum is continuously rotated or a forward / reverse continuous rotation drive mode in which continuous rotation of the rotating drum in the continuous rotation drive mode is repeated alternately forward and reverse is executed. In a part of the continuous rotation drive mode, the rotating drum is suddenly rotated by abruptly driving the motor, and the laundry is stuck to the inner surface of the rotating drum by centrifugal force due to the rapid arc rotation of the rotating drum. And lifted from the lowest position of the rotating drum to a position of more than 90 degrees and less than 180 degrees. When the laundry is suddenly braked, the laundry is peeled off from the inner surface of the rotating drum due to its inertia and its own weight, and the operation of dropping to the side opposite to the lifting side of the lower range of the rotating drum is performed forward and backward alternately. drum type washing machine, which comprises running the reverse pivot rotation drive mode.
  2. 制御装置は、正逆弧回転駆動モードでの正逆弧回転時における回転ドラムの最大回転速度を、40rpm以上としたことを特徴とする請求項1記載のドラム式洗濯機。   The drum type washing machine according to claim 1, wherein the control device sets the maximum rotation speed of the rotating drum during forward and reverse arc rotation in the forward and reverse arc rotation drive mode to 40 rpm or more.
  3. 制御装置は、第1のドラム駆動指示によるモータの駆動にて、前記モータの脱調限界を超えるとき、上限負荷を超えない第2のドラム駆動指示により前記モータを駆動することを特徴とする請求項1または2に記載のドラム式洗濯機。   The control device drives the motor according to a second drum driving instruction that does not exceed an upper limit load when the motor step-out limit is exceeded by driving the motor according to the first drum driving instruction. Item 3. The drum type washing machine according to Item 1 or 2.
  4. 制御装置は、回転ドラムの回転方向の正逆切り換えのための停止または反転を、前記回転ドラム内面に貼り付いた洗濯物が落下するまでに行うことを特徴とする請求項1〜3のいずれか1項に記載のドラム式洗濯機。   4. The control device according to claim 1, wherein the control device performs stop or reversal for forward / reverse switching of the rotation direction of the rotating drum until the laundry attached to the inner surface of the rotating drum falls. 2. A drum type washing machine according to item 1.
  5. 制御装置は、正逆弧回転駆動モードでの開始時の回転ドラムの弧回転を120度以上180度未満で行い、それ以降の弧回転を120度付近で行うことを特徴とする請求項1〜4のいずれか1項に記載のドラム式洗濯機。   The control device performs arc rotation of the rotating drum at the start in the forward / reverse arc rotation drive mode at 120 degrees or more and less than 180 degrees, and performs arc rotation after that at around 120 degrees. The drum type washing machine according to any one of 4.
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MYPI20090105A MY155034A (en) 2007-02-14 2007-11-22 Drum type washing machine
EP07832611.3A EP2042638B1 (en) 2007-02-14 2007-11-28 Drum type washing machine
RU2009106698/12A RU2398058C1 (en) 2007-02-14 2007-11-28 Washing machine of drum type
CN200780035625XA CN101517141B (en) 2007-02-14 2007-11-28 Drum type washing machine
PCT/JP2007/072889 WO2008099547A1 (en) 2007-02-14 2007-11-28 Drum type washing machine
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