JP2014083343A - Washing machine - Google Patents

Washing machine Download PDF

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Publication number
JP2014083343A
JP2014083343A JP2012236219A JP2012236219A JP2014083343A JP 2014083343 A JP2014083343 A JP 2014083343A JP 2012236219 A JP2012236219 A JP 2012236219A JP 2012236219 A JP2012236219 A JP 2012236219A JP 2014083343 A JP2014083343 A JP 2014083343A
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water
tank
water supply
tub
washing machine
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JP2012236219A
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JP6072506B2 (en
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Tetsuya Yamamoto
哲也 山本
Tetsushi Yoshida
哲士 吉田
Masuaki Inoue
益明 井上
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Hitachi Appliances Inc
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Hitachi Appliances Inc
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Priority to JP2012236219A priority Critical patent/JP6072506B2/en
Priority to TW102137105A priority patent/TWI539058B/en
Priority to CN201310511584.4A priority patent/CN103789971B/en
Publication of JP2014083343A publication Critical patent/JP2014083343A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/008—Methods for washing, rinsing or spin-drying for disinfecting the tub or the drum

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine which prevents dirt from depositing on a back side of a pulsator.SOLUTION: In the washing machine which comprises: a housing; an outer tank which is supported in the housing and stores water in an inner part thereof; an inner tank which is accommodated in the outer tank and stores laundry therein; a pulsator arranged at a bottom surface part in the inner tank; a driving device for rotatably driving the pulsator; and water supply means for supplying water into the outer tank, and has a washing step, a rinsing step and a dehydrating step, the washing machine closes a drain valve after discharging water used in the rinsing step, rotates the pulsator in a state that water is stored in a bottom of the outer tank, and opens the drain valve while the pulsator rotates.

Description

本発明は、洗濯機に関する。   The present invention relates to a washing machine.

洗濯機は、内槽（洗濯兼脱水槽）や外槽に汚れが付着するため、洗濯運転とは別に槽洗浄を目的としたコースを設定できるものがある。しかし、槽洗浄を目的としたコースでは、洗浄用の薬剤が必要になり、槽洗浄コースをユーザが選択する操作が必要になるなど洗浄作業が煩雑であった。   Some washing machines can set courses for washing the tank separately from the washing operation because dirt adheres to the inner tub (washing and dehydration tub) and the outer tub. However, in the course for the purpose of cleaning the tank, a cleaning chemical is required, and the cleaning operation is complicated, such as an operation for the user to select the tank cleaning course.

そこで、洗濯機の槽洗浄に関する他の方式として、内槽の上面に凹部を設け、この凹部へ給水する給水手段を備える洗濯機が提案されている。例えば、下記特許文献１には、凹部へ給水して内槽に水を溢れさせたり、内槽を回転させながら給水して外槽へ水を飛散させたりすることで、内槽や外槽を洗浄する技術が開示されている。   Therefore, as another method related to washing the tub of the washing machine, a washing machine has been proposed in which a recess is provided on the upper surface of the inner tub and water supply means for supplying water to the recess is provided. For example, in the following Patent Document 1, the inner tank and the outer tank are supplied by supplying water to the recess and causing the inner tank to overflow, or supplying water while rotating the inner tank and splashing water to the outer tank. Techniques for cleaning are disclosed.

特開平８−２９９６７９号公報JP-A-8-299679

しかしながら、特許文献１には、内槽を回転させながら給水する際に、排水弁をどのような状態とするかの記載がありません。また、この特許文献１に記載の発明は、内槽の上面に供給した水を内槽に溢れされたり外槽へ飛散させたりするものであるため、内槽や外槽の上部と比べて、内槽や外槽の下部近傍、特に回転翼（パルセータ）の裏側はきれいに洗浄することが困難である。   However, Patent Document 1 does not describe what state the drain valve is in when supplying water while rotating the inner tank. In addition, the invention described in Patent Document 1 is such that the water supplied to the upper surface of the inner tub is overflowed into the inner tub or is scattered to the outer tub. It is difficult to clean the vicinity of the lower part of the inner tank and the outer tank, particularly the back side of the rotor blade (pulsator).

本発明の目的は、上記のような問題を鑑み、回転翼の裏側に汚れが付着し難い洗濯機を提供することにある。   In view of the above problems, an object of the present invention is to provide a washing machine in which dirt does not easily adhere to the back side of a rotor blade.

上記目的を達成するために、本発明は、筺体と、この筺体内に支持され内部に水を溜める外槽と、この外槽に内包され洗濯物が収容される内槽と、この内槽の内底面部に配置される回転翼と、この回転翼を回転駆動させる駆動装置と、前記外槽内に給水する給水手段を備え、洗い工程、すすぎ工程および脱水工程を有する洗濯機において、前記すすぎ工程で利用した水を排水した後、排水弁を閉弁し、前記外槽の底に水を溜めた状態で前記回転翼を回転させ、前記回転翼が回転している間に前記排水弁を開弁する。   In order to achieve the above object, the present invention provides a housing, an outer tub that is supported in the housing and stores water therein, an inner tub enclosed in the outer tub and containing laundry, and an inner tub of the inner tub. In the washing machine having a washing step, a rinsing step, and a dehydrating step, the rinsing unit includes a rotary blade disposed on the inner bottom surface portion, a driving device that rotationally drives the rotary blade, and water supply means for supplying water into the outer tub. After draining the water used in the process, the drain valve is closed, the rotary blade is rotated with water stored in the bottom of the outer tank, and the drain valve is rotated while the rotary blade is rotating. Open the valve.

本発明によれば、回転翼の裏側に付着した汚れを落とし、しかも、落とした汚れが再度回転翼の裏側に付着し難い、洗濯機を提供できる。   ADVANTAGE OF THE INVENTION According to this invention, the dirt which adhered to the back side of the rotary wing | blade is removed, and also the washing | cleaning machine which the removed dirt cannot adhere to the back side of a rotary wing again can be provided.

実施例１に係る洗濯機の外観斜視図である。1 is an external perspective view of a washing machine according to Embodiment 1. FIG. 実施例１に係る洗濯機の筐体の内部を示す概略図である。1 is a schematic diagram illustrating the inside of a casing of a washing machine according to Embodiment 1. FIG. 実施例１に係る洗濯機の給水ユニットを示す斜視図である。It is a perspective view which shows the water supply unit of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の給水ボックスを示す斜視図である。It is a perspective view which shows the water supply box of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の給水ボックス内部を示す上面図である。It is a top view which shows the inside of the water supply box of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の給水ボックスを示す図５のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 5 which shows the water supply box of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の給水ボックス内でオーバーフローする液体の流れを示す斜視図である。It is a perspective view which shows the flow of the liquid which overflows in the water supply box of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の給水ボックスを示す図５のＢ−Ｂ断面図である。It is BB sectional drawing of FIG. 5 which shows the water supply box of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の槽の分解斜視図である。1 is an exploded perspective view of a tub of a washing machine according to Embodiment 1. FIG. 実施例１に係る洗濯機の外槽カバーを示す斜視図（表）である。It is a perspective view (table) which shows the outer tub cover of the washing machine concerning Example 1. FIG. 実施例１に係る洗濯機の外槽カバーを示す分解斜視図（裏）である。It is a disassembled perspective view (back) which shows the outer tub cover of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の給水口に設けるシャワーカバーの外観斜視図である。It is an external appearance perspective view of the shower cover provided in the water supply opening of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の流体バランサを示す斜視図である。It is a perspective view which shows the fluid balancer of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の流体バランサを示す断面図である。It is sectional drawing which shows the fluid balancer of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の水溜め部を示す流体バランサの拡大断面図である。It is an expanded sectional view of the fluid balancer which shows the water sump part of the washing machine concerning Example 1. 実施例１に係る洗濯機の水溜め部の種々の形状を示す概略断面図である。It is a schematic sectional drawing which shows the various shapes of the water sump part of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の外槽カバーの給水口と流体バランサの位置関係を示す概略図である。It is the schematic which shows the positional relationship of the water supply opening of the outer tub cover of the washing machine which concerns on Example 1, and a fluid balancer. 実施例１に係る洗濯機の給水ユニットから外槽内への経路を示す概略図である。It is the schematic which shows the path | route from the water supply unit of the washing machine which concerns on Example 1 into an outer tank. 実施例１に係る洗濯機の制御装置の機能構成を示す図である。It is a figure which shows the function structure of the control apparatus of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の運転工程を示す工程表である。3 is a process chart showing an operation process of the washing machine according to the first embodiment. 実施例１に係る洗濯機の槽洗浄運転Ｓ２０から脱水運転Ｓ２５に至るまでの詳細を示す工程図である。It is process drawing which shows the detail from the tank washing | cleaning operation S20 of the washing machine which concerns on Example 1 to dehydration operation S25. 実施例１に係る洗濯機の槽洗浄時に水溜め部へ給水開始直後の水の流れを示す概略図である。It is the schematic which shows the flow of the water immediately after a water supply start to a water reservoir part at the time of the tank washing | cleaning of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の槽洗浄時に水溜め部の水を内槽へ溢れさせているときの水の流れを示す概略図である。It is the schematic which shows the flow of water when the water of the water reservoir part is overflowed to an inner tank at the time of the tank washing | cleaning of the washing machine which concerns on Example 1. FIG. 実施例１に係る洗濯機の槽洗浄時に水溜め部の水を外槽へ飛散させているときの水の流れを示す概略図である。It is the schematic which shows the flow of water when the water of a water reservoir part is scattered to an outer tank at the time of the tank washing | cleaning of the washing machine which concerns on Example 1. FIG. 実施例２に係る洗濯機の運転工程を示す工程表である。10 is a process chart showing an operation process of the washing machine according to the second embodiment. 実施例２に係る洗濯機の槽洗浄運転Ｓ２１から脱水運転Ｓ２５に至るまでの詳細を示す工程図である。It is process drawing which shows the detail from tank washing | cleaning operation S21 of the washing machine which concerns on Example 2 to dehydration operation S25.

以下、本発明の実施例１について、適宜図面を参照しながら詳細に説明する。   Hereinafter, Example 1 of the present invention will be described in detail with reference to the drawings as appropriate.

図１に示すように、洗濯機１は、内槽８の回転軸１０ｃが略鉛直方向の洗濯機１の外観斜視図である。この洗濯機１の筐体２の上部には上面カバー２ａが設けられており、上面カバー２ａには外蓋３が設けられている。外蓋３は、山型に折れ曲がりながら奥側に開くことにより、内槽８に衣類（洗濯物）が出し入れ可能になっている。   As shown in FIG. 1, the washing machine 1 is an external perspective view of the washing machine 1 in which the rotation shaft 10c of the inner tub 8 is substantially vertical. An upper surface cover 2a is provided on the upper portion of the casing 2 of the washing machine 1, and an outer lid 3 is provided on the upper surface cover 2a. The outer lid 3 is folded in a mountain shape and opened to the back side so that clothes (laundry) can be taken in and out of the inner tub 8.

上面カバー２ａの奥側には、外槽９内へ水を給水する給水ユニット１２が設けられる。給水ユニット１２には、水道栓からの給水ホース接続口４および風呂の残り湯の吸水ホース接続口５が設けられている。上面カバー２ａの手前側には、電源スイッチ６が設けられ、外蓋３の手前側には、操作スイッチ７ａおよび表示器７ｂからなる操作パネル７が設けられている。   A water supply unit 12 for supplying water into the outer tub 9 is provided on the back side of the upper surface cover 2a. The water supply unit 12 is provided with a water supply hose connection port 4 from the water tap and a water absorption hose connection port 5 for remaining hot water in the bath. A power switch 6 is provided on the front side of the top cover 2a, and an operation panel 7 including an operation switch 7a and a display 7b is provided on the front side of the outer lid 3.

図２に示すように、洗濯機１は、筐体２内に、内槽８、外槽９、駆動装置１０、給水ユニット１２などを備えている。   As shown in FIG. 2, the washing machine 1 includes an inner tub 8, an outer tub 9, a driving device 10, a water supply unit 12, and the like in the housing 2.

内槽８は、有底円筒形状を呈し、その開口縁には、中空内部に液体が封入されたリング形状をした合成樹脂製の流体バランサ８ａ、ステンレス鋼板などで形成された略円筒状の胴板８ｂ、底部には、合成樹脂からなる底板（図示せず）を有しており、底板には、アルミニウム製のフランジがインサート成形により配置されている。胴板８ｂには、通水および通風のための多数の貫通孔８ｃ（一部のみ図示）が形成されている。なお、内槽８は、上記の他に内槽８の回転バランスを調整するウエイト等を有して構成されても良い。   The inner tank 8 has a bottomed cylindrical shape, and an opening edge has a substantially cylindrical body formed of a ring-shaped synthetic resin fluid balancer 8a in which a liquid is sealed in a hollow interior, a stainless steel plate, or the like. The plate 8b has a bottom plate (not shown) made of synthetic resin at the bottom, and an aluminum flange is disposed on the bottom plate by insert molding. A large number of through holes 8c (only part of which are shown) are formed in the trunk plate 8b for water flow and ventilation. In addition to the above, the inner tank 8 may have a weight or the like for adjusting the rotational balance of the inner tank 8.

内槽８には、内側底面に回転翼８ｄを備えている。胴板８ｂの内周面側壁には回転翼８ｄが回転することによるポンプアップ作用により、外槽９に給水された洗濯水やすすぎ水を循環させるための循環シャワーケース（図示せず）、および糸くずを捕集するためのリントフィルターケース（図示せず）が複数個設けられている。   The inner tub 8 is provided with a rotary blade 8d on the inner bottom surface. A circulation shower case (not shown) for circulating washing water and rinsing water supplied to the outer tub 9 by a pump-up action caused by rotation of the rotary blade 8d on the inner peripheral side wall of the body plate 8b, and A plurality of lint filter cases (not shown) for collecting lint are provided.

外槽９は、有底円筒形状を呈し、内槽８を同軸上に内包し、その上部に外槽カバー９ａを備えて構成されている。外槽９は内周側底面に落込部９ｍが設けられ、落込部９ｍの外周側には、排水弁１４が接続されている。   The outer tub 9 has a bottomed cylindrical shape, includes the inner tub 8 coaxially, and includes an outer tub cover 9a on the upper portion thereof. The outer tub 9 is provided with a drop portion 9m on the bottom surface on the inner peripheral side, and a drain valve 14 is connected to the outer peripheral side of the drop portion 9m.

排水弁１４を閉弁することにより、外槽９内に洗い水やすすぎ水を貯水可能となる。また、排水弁１４を開弁することにより、外槽９内の水を、洗濯水排水路１５を介して、洗濯機１の機外へ排水することができる。また外槽９には、溜められた洗濯水の水位を検出するための水位センサ接続部（図示せず）が備えられている。   By closing the drain valve 14, washing water and rinsing water can be stored in the outer tub 9. Further, by opening the drain valve 14, the water in the outer tub 9 can be drained out of the washing machine 1 through the washing water drainage channel 15. The outer tub 9 is provided with a water level sensor connection (not shown) for detecting the level of the stored washing water.

駆動装置１０は、外槽９の底面の外側中央に配置されている。この駆動装置１０は、モータ１０ａとクラッチ機構１０ｂとを有し、駆動装置１０の回転軸１０ｃが外槽９を貫通し、内槽８および回転翼８ｄと結合するように構成されている。クラッチ機構１０ｂは、モータ１０ａの回転動力を内槽８および／または回転翼８ｄに伝達する機能を有する。モータ１０ａは、その回転を検出するホール素子などで構成される回転検出装置２８と、モータ１０ａに流れる電流を検出するモータ電流検出装置２９を備える。   The driving device 10 is disposed at the center outside the bottom surface of the outer tub 9. This drive device 10 has a motor 10a and a clutch mechanism 10b, and is configured such that a rotating shaft 10c of the drive device 10 passes through the outer tank 9 and is coupled to the inner tank 8 and the rotary blade 8d. The clutch mechanism 10b has a function of transmitting the rotational power of the motor 10a to the inner tank 8 and / or the rotary blade 8d. The motor 10a includes a rotation detection device 28 configured by a Hall element that detects the rotation, and a motor current detection device 29 that detects a current flowing through the motor 10a.

図３は、上面カバー２ａを外した筐体２奥側の拡大図である。筐体２上部の奥側には給水ユニット１２が設けられている。給水ユニット１２は、仕上剤を収容する給水ボックス１６と、風呂水を外槽内に供給するための風呂水ポンプ１３を備えている。また、給水ボックス１６の隣には、洗濯機の制御を行うコントロール基盤１１が設けられている。   FIG. 3 is an enlarged view of the back side of the housing 2 with the top cover 2a removed. A water supply unit 12 is provided on the back side of the upper portion of the housing 2. The water supply unit 12 includes a water supply box 16 for storing the finishing agent and a bath water pump 13 for supplying bath water into the outer tub. Next to the water supply box 16, a control board 11 for controlling the washing machine is provided.

図４は、給水ボックス１６の斜視図である。給水ボックス１６には、外槽へ直接給水するメイン給水電磁弁１６ａと、給水ボックス１６内に給水する仕上剤／槽洗浄給水電磁弁１６ｂと、図示していないが風呂水ポンプ１３に繋がる流路が取り付けられている。   FIG. 4 is a perspective view of the water supply box 16. The water supply box 16 includes a main water supply electromagnetic valve 16a that supplies water directly to the outer tank, a finishing agent / bath cleaning water supply electromagnetic valve 16b that supplies water into the water supply box 16, and a flow path that connects to the bath water pump 13 (not shown). Is attached.

図５は、給水ボックス１６の上面図である。給水ボックス１６は、内槽および外槽洗浄用の槽洗浄給水室１７と、仕上剤を収容する仕上剤収容室１８と、仕上剤収容室１８から溢れた水が流入するオーバーフロー室１９に分かれている。詳しくは後述するが、給水ボックス１６は、仕上剤／槽洗浄給水電磁弁１６ｂから給水されて槽洗浄給水室１７から溢れた水が仕上剤収容室１８に流れ込み、仕上剤収容室１８から溢れた水がオーバーフロー室１９に流れ込んで外槽に供給される構造となっている。   FIG. 5 is a top view of the water supply box 16. The water supply box 16 is divided into a tank cleaning water supply chamber 17 for cleaning the inner tank and the outer tank, a finishing agent storage chamber 18 for storing the finishing agent, and an overflow chamber 19 into which water overflowing from the finishing agent storage chamber 18 flows. Yes. As will be described in detail later, the water supply box 16 is supplied with water from the finishing agent / tank cleaning water supply electromagnetic valve 16b and overflows from the tank cleaning water supply chamber 17 into the finishing agent storage chamber 18 and overflows from the finishing agent storage chamber 18. The water flows into the overflow chamber 19 and is supplied to the outer tank.

図６は、図５のＡ−Ａ断面図である。槽洗浄給水室１７には、仕上剤／槽洗浄給水電磁弁１６ｂを開いたときに水が流入する流入口１７ａが設けられる。この流入口１７ａから槽洗浄給水室１７に水が供給されるが、水流が強い場合には水が槽洗浄給水室１７外に跳ねる虞があるため、流入口１７ａの向きが下向きになるように、例えば水の向きを変える水流規制板等を設ける。また、流入口１７ａから供給される水の勢いを抑えるために、流入口１７ａから出る水流が登りとなるような傾斜を槽洗浄給水室１７の底面に形成している。さらに、流入口１７ａからの水流がぶつかる壁面に水の跳ね上がりを抑制するリブ１７ｃを設けている。このリブ１７ｃは様々な形状が考えられるが、本実施例では、底面に対して略並行および壁面に対して略垂直な凸形状を２つ設けている。また、リブ１７ｃは３つ以上でも良く他の壁面に設けても良い。これらの構造によって流入口１７ａから供給される水は、底面の傾斜により勢いが弱まり、壁面に衝突後にリブ１７ｃで跳ね返され槽洗浄給水室１７の外に飛び出さないようになっている。   6 is a cross-sectional view taken along the line AA in FIG. The tank cleaning water supply chamber 17 is provided with an inlet 17a through which water flows when the finishing agent / tank cleaning water supply electromagnetic valve 16b is opened. Water is supplied from the inflow port 17a to the tank cleaning water supply chamber 17, but when the water flow is strong, there is a possibility that the water may splash outside the tank cleaning water supply chamber 17, so that the direction of the inflow port 17a is directed downward. For example, a water flow regulating plate for changing the direction of water is provided. Moreover, in order to suppress the momentum of the water supplied from the inflow port 17 a, an inclination is formed on the bottom surface of the tank cleaning water supply chamber 17 so that the water flow coming out from the inflow port 17 a rises. Furthermore, a rib 17c that suppresses the splashing of water is provided on the wall surface where the water flow from the inflow port 17a collides. Although various shapes can be considered for this rib 17c, in this embodiment, two convex shapes that are substantially parallel to the bottom surface and substantially perpendicular to the wall surface are provided. Further, the number of ribs 17c may be three or more, or may be provided on another wall surface. With these structures, the water supplied from the inflow port 17a is weakened by the inclination of the bottom surface, and is rebounded by the rib 17c after colliding with the wall surface so as not to jump out of the tank cleaning water supply chamber 17.

槽洗浄給水室１７の底面は、流入口１７ａに向かって低くなるように傾斜しているが、最低部は流入口１７ａの下方に位置するように形成される。そして、最低部に外槽と連通する槽洗浄給水室１７の流出口１７ｂが設けられる。これにより、水跳ねを抑制するとともに槽洗浄給水室１７に水が残留することを防ぐことができる。   The bottom surface of the tank cleaning water supply chamber 17 is inclined so as to become lower toward the inflow port 17a, but the lowest part is formed so as to be positioned below the inflow port 17a. And the outflow port 17b of the tank washing water supply chamber 17 connected to an outer tank is provided in the lowest part. Thereby, water splash can be suppressed and water can be prevented from remaining in the tank cleaning water supply chamber 17.

図７は、給水ボックス１６内の水の流れを示す斜視図である。仕上剤／槽洗浄給水電磁弁１６ｂを開いたときに流入口１７ａから槽洗浄給水室１７に流入する流量は、槽洗浄給水室１７の流出口１７ｂから出ていく流量より多くなるようにしている。したがって、仕上剤／槽洗浄給水電磁弁１６ｂを開いたままにしておくと、徐々に槽洗浄給水室１７に水が溜まり溢れ出す。この槽洗浄給水室１７から溢れ出した水は、図７に示す矢印１００のように、仕切り板Ａを乗り越えて仕上剤収容室１８へ流れ込む。仕切り板Ａは、槽洗浄給水室１７を形成する壁の中で最も低く設けられ、槽洗浄給水室１７から溢れた水が他に流れ出ないように全て仕上剤収容室１８へ流入するようにしている。また、仕切り板Ａは、流入口１７ａから出た水がぶつかる壁面とは異なる位置に設けることで、水が流れの勢いで仕切り板を乗り越えて仕上剤収容室１８に流入してしまうことを防止している。   FIG. 7 is a perspective view showing the flow of water in the water supply box 16. When the finishing agent / tank cleaning water supply electromagnetic valve 16b is opened, the flow rate flowing into the tank cleaning water supply chamber 17 from the inlet 17a is larger than the flow rate exiting from the outlet 17b of the tank cleaning water supply chamber 17. . Therefore, if the finishing agent / tank washing water supply electromagnetic valve 16b is left open, water gradually accumulates in the tank washing water supply chamber 17 and overflows. The water overflowing from the tank cleaning water supply chamber 17 passes over the partition plate A and flows into the finishing agent storage chamber 18 as indicated by an arrow 100 shown in FIG. The partition plate A is provided at the lowest level among the walls forming the tank cleaning water supply chamber 17, so that all the water overflowing from the tank cleaning water supply chamber 17 flows into the finish agent storage chamber 18 so that it does not flow out elsewhere. Yes. Further, the partition plate A is provided at a position different from the wall surface where the water coming out from the inflow port 17a collides, thereby preventing the water from flowing over the partition plate and flowing into the finishing agent storage chamber 18 due to the flow. doing.

仕上剤収容室１８は、外槽と連通する流出口１８ａが設けられている。仕上剤収容室１８の流出口１８ａにはサイフォンキャップ（図示せず）が設けられ、一定量の水が溜まるとサイフォン現象により、水とともに収容されている仕上剤が外槽に投入される。また、仕上剤収容室１８には、仕切り板Ａより低い仕切り板Ｂを設けている。これにより、仕上剤収容室１８から溢れる水が槽洗浄給水室１７に逆流しないようにしている。   The finishing agent storage chamber 18 is provided with an outlet 18a communicating with the outer tub. A siphon cap (not shown) is provided at the outlet 18a of the finishing agent storage chamber 18, and when a certain amount of water accumulates, the finishing agent stored together with the water is thrown into the outer tank due to the siphon phenomenon. Further, the finishing agent storage chamber 18 is provided with a partition plate B lower than the partition plate A. Thereby, the water overflowing from the finishing agent storage chamber 18 is prevented from flowing back into the tank cleaning water supply chamber 17.

また、流入口１７ａから槽洗浄給水室１７に流入する流量は、槽洗浄給水室１７の流出口１７ｂから流出する流量と仕上剤収容室１８の流出口１８ａから流出する流量の合計より多くなるようにしている。そのため、流入口１７ａから給水を続けると、仕上剤収容室１８からも水が溢れ出し、仕切り板Ｂを乗り越えて矢印１０１のようにオーバーフロー室１９へ流入する。オーバーフロー室１９は外槽に繋がっており、オーバーフロー室１９に流入した水は外槽へ供給される。   Further, the flow rate flowing into the tank cleaning water supply chamber 17 from the inlet port 17a is larger than the sum of the flow rate flowing out from the outlet port 17b of the tank cleaning water supply chamber 17 and the flow rate flowing out from the outlet port 18a of the finishing agent storage chamber 18. I have to. Therefore, if water supply is continued from the inflow port 17a, the water overflows from the finishing agent storage chamber 18 and passes over the partition plate B and flows into the overflow chamber 19 as indicated by the arrow 101. The overflow chamber 19 is connected to the outer tank, and the water flowing into the overflow chamber 19 is supplied to the outer tank.

また、仕上剤収容室１８を形成する壁のうち流入口１７ａ側の壁面の一部が、流入口１７ａからの水流を妨げるように拡張させている。これにより、流入口１７ａからの水流を弱めることができるとともに、仕上剤収容室１８の容積を大きくすることができる。なお、槽洗浄給水室１７の容積は約１５２ml、仕上剤収容室１８の容積は約８４mlとしている。   Moreover, a part of wall surface by the side of the inflow port 17a among the walls which form the finishing agent storage chamber 18 is extended so that the water flow from the inflow port 17a may be prevented. Thereby, while being able to weaken the water flow from the inflow port 17a, the volume of the finishing agent storage chamber 18 can be enlarged. The tank cleaning water supply chamber 17 has a volume of about 152 ml, and the finishing agent storage chamber 18 has a volume of about 84 ml.

図８は、図５のＢ−Ｂ断面図である。仕上剤／槽洗浄給水電磁弁１６ｂから槽洗浄給水室１７に供給された水は、矢印１０３の流路を通って給水口２０から外槽（水溜め部）へ供給される。給水ボックス１６に取り付けられたメイン給水電磁弁１６ａから供給される水は、矢印１０２の流路を通って外槽に供給される。また、仕上剤収容室１８の流出口１８ａおよびオーバーフロー室１９は、矢印１０２の流路と連通しており、仕上剤収容室１８の流出口１８ａおよびオーバーフロー室１９から流出する仕上剤を含む水は、矢印１０４の流路をたどりメイン給水電磁弁１６ａから供給される水と途中で合流して外槽へ供給される。   8 is a cross-sectional view taken along the line BB in FIG. The water supplied to the tank cleaning water supply chamber 17 from the finishing agent / tank cleaning water supply electromagnetic valve 16 b is supplied from the water supply port 20 to the outer tank (water reservoir) through the flow path indicated by the arrow 103. Water supplied from the main water supply electromagnetic valve 16 a attached to the water supply box 16 is supplied to the outer tank through the flow path indicated by the arrow 102. Further, the outlet 18 a and the overflow chamber 19 of the finishing agent storage chamber 18 communicate with the flow path indicated by the arrow 102, and the water containing the finishing agent flowing out from the outlet 18 a and the overflow chamber 19 of the finishing agent storage chamber 18 Then, following the flow path indicated by the arrow 104, the water supplied from the main water supply electromagnetic valve 16a is merged and supplied to the outer tank.

図９に示すように、外槽カバー９ａは、略円形状の投入口９ｂを有し、外槽９の上端縁部に取り付けられる。内槽８は、胴板８ｂの上端縁部に取り付けられる合成樹脂などで形成された流体バランサ８ａを有している。   As shown in FIG. 9, the outer tank cover 9 a has a substantially circular inlet 9 b and is attached to the upper edge of the outer tank 9. The inner tank 8 has a fluid balancer 8a formed of synthetic resin or the like attached to the upper end edge of the body plate 8b.

図１０に示すように、外槽カバー９ａには、後記する槽洗浄用の給水口２０が設けられる。給水口２０は、給水ボックス１６の槽洗浄給水室１７の流出口１７ｂと繋がっている。   As shown in FIG. 10, the outer tank cover 9a is provided with a water supply port 20 for tank cleaning described later. The water supply port 20 is connected to the outlet 17 b of the tank cleaning water supply chamber 17 of the water supply box 16.

図１１は、外槽カバー９ａを裏面から見た図である。図５に示すように、外槽カバー９ａ裏面には有するシャワーカバー２１が備えられている。このシャワーカバー２１と外槽カバー９ａの間には水封するためのパッキン２１ｂが備えられており、給水口２０より給水された水を無駄なくシャワーカバー２１に流すことができる。   FIG. 11 is a view of the outer tank cover 9a as seen from the back side. As shown in FIG. 5, a shower cover 21 is provided on the rear surface of the outer tub cover 9a. A packing 21b for water sealing is provided between the shower cover 21 and the outer tub cover 9a, so that the water supplied from the water supply port 20 can flow to the shower cover 21 without waste.

図１２に示すように、シャワーカバー２１には流体バランサ８ａの径方向に複数の散水口２１ａが配列されている。流体バランサ８ａの内周側に位置する散水口２１ａからは、後記する水溜め部３０に給水され、流体バランサ８ａの外周側に位置する散水口２１ａからは、内槽８外周壁に流れるように給水される。   As shown in FIG. 12, the shower cover 21 has a plurality of water spray ports 21a arranged in the radial direction of the fluid balancer 8a. Water is supplied to a water reservoir 30 to be described later from a water spout 21a located on the inner peripheral side of the fluid balancer 8a, and flows from the water spout 21a located on the outer peripheral side of the fluid balancer 8a to the outer peripheral wall of the inner tank 8. Water is supplied.

図１３は、流体バランサ８ａの全体像を示す斜視図である。図７に示すように、流体バランサ８ａは略円環形状をしている。流体バランサ８ａは、内部に比重の大きな流体を封入して構成され、内槽８の回転時に洗濯物の偏り等によって偏心が生じたときに、流体バランサ８ａ内での流体の移動によって偏心をキャンセルし、回転のバランスを維持する働きを有する。流体バランサ８ａは、内槽８の回転軸中心と略同心円となるように胴板８ｂ上端部に取り付けられる。   FIG. 13 is a perspective view showing an overall image of the fluid balancer 8a. As shown in FIG. 7, the fluid balancer 8a has a substantially annular shape. The fluid balancer 8a is configured by enclosing a fluid having a large specific gravity therein, and cancels the eccentricity due to the movement of the fluid in the fluid balancer 8a when the eccentricity occurs due to the unevenness of the laundry when the inner tub 8 rotates. And maintaining the balance of rotation. The fluid balancer 8a is attached to the upper end of the body plate 8b so as to be substantially concentric with the center of the rotation axis of the inner tank 8.

図１４は、流体バランサ８ａを径方向に切断した断面図である。流体バランサ８ａに封入される液体は、収容部８ａ１に収容されている。収容部８ａ１内部は、流体バランサ８ａ中心から径方向に複数の層に分かれている。また各層の内部は、多数の部屋に区切られ、各部屋は封入される液体が移動可能なように連通している。   FIG. 14 is a cross-sectional view of the fluid balancer 8a cut in the radial direction. The liquid sealed in the fluid balancer 8a is accommodated in the accommodating portion 8a1. The inside of the accommodating portion 8a1 is divided into a plurality of layers in the radial direction from the center of the fluid balancer 8a. The inside of each layer is divided into a number of rooms, and each room communicates so that the liquid to be sealed can move.

図１５に示すように内槽８（流体バランサ８ａ）上面には、水を溜めることができる水溜め部３０が形成される。水溜め部３０は、内槽８の円周上面を一周する凹部で構成される。後記するが、水溜め部から水を溢れさせたり飛散させたりすることにより槽を洗浄するので、水溜め部は高い位置に配置されるのが望ましく、内槽８の上端部に形成するのが良い。水溜め部３０は、内槽８の回転軸に対して内周側と外周側にそれぞれ位置する内周側***部３０ａと外周側***部３０ｂとで挟まれるように形成される。***部の間に形成される水溜め部３０は、水が溜められる容積が大きいほど、より多くのまとまった水を外槽９へ飛散させることが可能となるため、外槽９洗浄の効果が向上する。   As shown in FIG. 15, a water reservoir 30 capable of storing water is formed on the upper surface of the inner tank 8 (fluid balancer 8a). The water reservoir 30 is configured by a recess that goes around the circumferential upper surface of the inner tub 8. As will be described later, since the tank is washed by overflowing or splashing water from the water reservoir, it is desirable that the water reservoir is disposed at a high position, and it is formed at the upper end of the inner tank 8. good. The water reservoir 30 is formed so as to be sandwiched between an inner peripheral bulge 30a and an outer peripheral bulge 30b located on the inner peripheral side and the outer peripheral side with respect to the rotation axis of the inner tub 8, respectively. Since the water reservoir 30 formed between the raised portions has a larger volume in which water is stored, more water can be scattered into the outer tub 9, so that the effect of washing the outer tub 9 is improved. improves.

本実施例では、胴板８ｂ上端部に流体バランサ８ａが備えられているため、水溜め部３０は流体バランサ８ａ上面に形成しているが、内槽８の流体バランサ８ａ以外の部材に水溜め部３０を一体形成するか、別部材として設けても良い。   In the present embodiment, since the fluid balancer 8a is provided at the upper end portion of the body plate 8b, the water reservoir 30 is formed on the upper surface of the fluid balancer 8a, but the water reservoir is formed in a member other than the fluid balancer 8a of the inner tank 8. The part 30 may be integrally formed or provided as a separate member.

外周側***部３０ｂの内周面３０ｂ１は略鉛直、または、外槽９方向に傾斜して形成される。外周側***部３０ｂの内周面３０ｂ１が外槽９方向とは反対に傾斜して形成されると、水溜め部３０に溜まった水は飛散できずに残留し、湿気や水垢の原因となる。そのため、外周側***部３０ｂの内周面３０ｂ１は、水溜め部３０に溜められる水の容積を考慮し略鉛直に形成することが望ましい。   The inner peripheral surface 30b1 of the outer peripheral side raised portion 30b is formed to be substantially vertical or inclined toward the outer tub 9 direction. If the inner peripheral surface 30b1 of the outer peripheral bulging portion 30b is formed to be inclined opposite to the direction of the outer tub 9, the water accumulated in the water reservoir 30 remains without being scattered, which causes moisture and scale. . For this reason, it is desirable that the inner peripheral surface 30b1 of the outer peripheral bulged portion 30b be formed substantially vertically in consideration of the volume of water stored in the water reservoir 30.

外周側***部３０ｂの外周面３０ｂ２は略鉛直、または、外槽９とは反対方向に傾斜して形成される。外周側***部３０ｂの外周面３０ｂ２が外槽９方向へ傾斜して形成されると、水溜め部３０から水を溢れさせたときに、水が内槽８外周壁を伝って流れずに外槽９と内槽８の間を落下してしまい易くなる。一方で、外槽９方向に傾斜させると、外周側***部３０ｂの内周面３０ｂ１を外槽９側へ傾斜させて形成できるので、水溜め部３０の容積を増やすことができる。その場合、外周面３０ｂ２は鉛直軸から外槽９方向へ２０°以下の傾斜で形成されるのが良い。また、外槽９方向へ傾斜させる場合は、外周側***部３０ｂの外周面３０ｂ２が傾斜する分だけ外槽９との間隔が狭まる点を考慮する必要がある。   The outer peripheral surface 30b2 of the outer peripheral raised portion 30b is formed to be substantially vertical or inclined in the direction opposite to the outer tub 9. When the outer peripheral surface 30b2 of the outer peripheral bulge 30b is formed to be inclined toward the outer tub 9, when the water overflows from the water reservoir 30, the water does not flow along the outer peripheral wall of the inner tub 8 and flows outside. It becomes easy to fall between the tank 9 and the inner tank 8. On the other hand, when inclined in the direction of the outer tub 9, the inner peripheral surface 30b1 of the outer peripheral bulge portion 30b can be formed to be inclined toward the outer tub 9, so that the volume of the water reservoir 30 can be increased. In that case, the outer peripheral surface 30b2 is preferably formed with an inclination of 20 ° or less from the vertical axis toward the outer tub 9. Moreover, when making it incline toward the outer tank 9, it is necessary to consider that the space | interval with the outer tank 9 becomes narrow by the part which the outer peripheral surface 30b2 of the outer peripheral side protruding part 30b inclines.

水溜め部３０を流体バランサ８ａに形成する場合、流体バランサ８ａの性能低下を防ぐため流体バランサ８ａに封入される液体を収容する容積をできる限り減少させたくないという制約がある。そのため、水溜め部３０の深さは、内周側より外周側が深く形成される。この理由は、内槽８を回転させた場合、水溜め部３０に溜まった水の水面は遠心力により外周側が高くなり、内周側が低くなることにある。つまり、内槽８の回転数を上げていくと、水溜め部３０の水が外槽９に飛散する回転数に達するまでの間に、水溜め部３０の内周側の水が多く流出してしまう。そのため、水溜め部３０の外周側を深く形成することで、内槽８回転時に水溜め部３０の水が外槽９へ飛散し始めるまでに、水溜め部３０により多くの水量を確保しておくことができる。また、流体バランサ８ａに収容される液体の収容容積の減少も抑えられる。   In the case where the water reservoir 30 is formed in the fluid balancer 8a, there is a restriction that it is not desired to reduce as much as possible the volume for storing the liquid sealed in the fluid balancer 8a in order to prevent the performance of the fluid balancer 8a from being deteriorated. Therefore, the depth of the water reservoir 30 is formed deeper on the outer peripheral side than on the inner peripheral side. The reason for this is that when the inner tub 8 is rotated, the water surface of the water accumulated in the water reservoir 30 becomes higher on the outer peripheral side and lower on the inner peripheral side due to centrifugal force. That is, when the rotational speed of the inner tub 8 is increased, a large amount of water on the inner peripheral side of the water reservoir 30 flows out until the water in the water reservoir 30 reaches the rotational speed at which the water scatters into the outer tub 9. End up. Therefore, by forming the outer peripheral side of the water reservoir 30 deeply, a large amount of water is secured in the water reservoir 30 before the water in the water reservoir 30 starts to splash into the outer tank 9 when the inner tank 8 rotates. I can leave. In addition, a decrease in the storage volume of the liquid stored in the fluid balancer 8a can be suppressed.

また、水溜め部３０に残る水量をより多く確保するため、外周側***部３０ｂの高さは、内周側***部３０ａより高く形成される。上記と同様の理由により、内槽８回転時は水溜め部３０の外周側の水面が高くなるため、外周側***部３０ｂを高く形成することで、水溜め部３０に水量を確保し易くなり、外槽９へより多くの水を飛散させることができる。   Moreover, in order to ensure more water remaining in the water reservoir 30, the height of the outer peripheral bulge 30b is formed higher than the inner peripheral bulge 30a. For the same reason as described above, since the water surface on the outer peripheral side of the water reservoir 30 becomes higher when the inner tub 8 rotates, it becomes easier to secure a water amount in the water reservoir 30 by forming the outer peripheral bulge 30b higher. More water can be scattered into the outer tub 9.

図１６は、内槽８に設けられる水溜め部３０の種々の形状を示す断面図である。形状Ａを基本構造として順に説明していく。形状Ａは、図１５に示す水溜め部３０の簡略図であり、内周側***部３０ａと外周側***部３０ｂとで挟まれた水溜め部３０の形状である。外周側***部３０ｂの内周面３０ｂ１も外周面３０ｂ２も略鉛直方向に形成され、水溜め部３０の深さは内槽８の回転軸に対して内周側から外周側へ徐々に深くなるように形成される。内周側***部３０ａには、水溜め部３０の容積を増加させるために突起３０ａ１が設けられているが、突起３０ａ１の位置は、内槽８の内周端に設けることでより水溜め部３０の容積が増加する。   FIG. 16 is a cross-sectional view showing various shapes of the water reservoir 30 provided in the inner tank 8. The shape A will be described in order as a basic structure. The shape A is a simplified view of the water reservoir 30 shown in FIG. 15, and is the shape of the water reservoir 30 sandwiched between the inner peripheral bulge 30a and the outer peripheral bulge 30b. Both the inner peripheral surface 30b1 and the outer peripheral surface 30b2 of the outer peripheral side raised portion 30b are formed in a substantially vertical direction, and the depth of the water reservoir 30 gradually increases from the inner peripheral side to the outer peripheral side with respect to the rotation axis of the inner tank 8. Formed as follows. A protrusion 30a1 is provided on the inner peripheral bulge 30a to increase the volume of the water reservoir 30, but the position of the protrusion 30a1 can be further increased by providing the protrusion 30a1 at the inner peripheral end of the inner tank 8. The volume of 30 increases.

形状Ｂは、外周側***部３０ｂの上端に外槽９方向へ延びる突起３０ｂ３を設けることにより、給水口２０に対向する面（突起３０ｂ３上面）を形成している。そのため、給水口２０から給水された水が、この突起３０ｂ３の上面に当たって外槽９へはじき飛ばされることで外槽９内周壁を洗浄することができる。この突起３０ｂ３は、外槽９方向に長過ぎると、外槽９と内槽８の間の距離が狭まってしまい、内槽８外周壁へも水が流れ落ち難くなってしまうので、これを考慮して適宜長さを調整する。   Shape B forms the surface (projection 30b3 upper surface) which opposes the water supply port 20 by providing the protrusion 30b3 extended in the outer tank 9 direction at the upper end of the outer peripheral side protruding part 30b. Therefore, the water supplied from the water supply port 20 hits the upper surface of the protrusion 30b3 and is blown off to the outer tank 9, whereby the inner peripheral wall of the outer tank 9 can be washed. If this protrusion 30b3 is too long in the direction of the outer tub 9, the distance between the outer tub 9 and the inner tub 8 will be narrowed, and it will be difficult for water to flow down to the outer peripheral wall of the inner tub 8. Adjust the length as appropriate.

形状Ｃは、水溜め部が流体バランサ８ａ上面に設けられる場合において、外周側***部３０ｂの外周面３０ｂ２に段差を設けることで、水溜め部３０の位置を流体バランサ８ａの外周端から距離を遠ざけて形成している。流体バランサ８ａに封入される液体は、流体バランサ８ａの外周側に位置するものほど偏心を調整する効果が高いが、形状Ｃのようにすることで、液体の収容部を流体バランサ８ａの外周側により広く設けることができる。そのため、流体バランサ８ａの性能低下を抑えて水溜め部３０を形成することができる。また、水溜め部３０の位置を外槽９から遠ざけ過ぎると、水溜め部３０の水を外槽９へ飛散させる洗浄を行うときに外槽９内周壁に水を当て難くなるため、水溜め部３０の位置は外槽９との距離を考慮して調整する。   In the shape C, when the water reservoir is provided on the upper surface of the fluid balancer 8a, a step is provided on the outer peripheral surface 30b2 of the outer peripheral bulge 30b, so that the position of the water reservoir 30 is separated from the outer peripheral end of the fluid balancer 8a. Formed away. The liquid sealed in the fluid balancer 8a has a higher effect of adjusting the eccentricity as it is located on the outer peripheral side of the fluid balancer 8a. However, by using the shape C, the liquid storage portion is arranged on the outer peripheral side of the fluid balancer 8a. More widely. Therefore, it is possible to form the water reservoir 30 while suppressing a decrease in performance of the fluid balancer 8a. Further, if the position of the water reservoir 30 is too far away from the outer tub 9, it becomes difficult to apply water to the inner peripheral wall of the outer tub 9 when cleaning the water in the water reservoir 30 to the outer tub 9. The position of the part 30 is adjusted in consideration of the distance from the outer tub 9.

形状Ｄは、内周側***部３０ａに突起３０ａ１を設けず滑らかに形成することで、内周側***部３０ａも洗浄し易くしている。内周側***部３０ａに突起３０ａ１を設けると、その高さ分の水溜め部３０の容積を増加できるが、突起３０ａ１を超えて内周側へは水が流れ難い。水溜め部３０の容積は減少するが、突起３０ａ１を設けず内周側***部３０ａが略平坦に形成されているので、内周側にも水が行き渡り易く水溜め部３０上面も満遍なく洗浄し易くなる。   The shape D is formed smoothly on the inner peripheral bulged portion 30a without providing the protrusion 30a1, thereby facilitating cleaning of the inner peripheral bulged portion 30a. When the protrusion 30a1 is provided on the inner peripheral raised portion 30a, the volume of the water reservoir 30 corresponding to the height can be increased, but water hardly flows to the inner peripheral side beyond the protrusion 30a1. Although the volume of the water reservoir 30 is reduced, the protrusion 30a1 is not provided, and the inner peripheral bulge 30a is formed substantially flat, so that water easily spreads to the inner peripheral side and the upper surface of the water reservoir 30 is evenly washed. It becomes easy.

形状Ｅは、内周側***部３０ａと外周側***部３０ｂの間に中間***部３０ｃを形成している。水溜め部３０を二層に分けることで、外槽９へ水を飛散させたときに外槽９内周壁の水が当たる位置を変化させることができる。また、中間***部３０ｃと外周側***部３０ｂの内周面３０ｂ１の角度を変えることで、各層に溜められた水が外槽９へ飛散する方向を変化させることができる。なお、二層以上に分けても良いが、***部を複数形成すると水溜め部３０全体の容積は減少するため、何層とするかは適宜調整される。   In the shape E, an intermediate raised portion 30c is formed between the inner circumferential raised portion 30a and the outer circumferential raised portion 30b. By dividing the water reservoir 30 into two layers, it is possible to change the position where the water on the inner peripheral wall of the outer tub 9 hits when water is scattered to the outer tub 9. Moreover, the direction in which the water stored in each layer scatters to the outer tank 9 can be changed by changing the angle of the inner peripheral surface 30b1 of the intermediate | middle protruding part 30c and the outer peripheral side protruding part 30b. In addition, although it may divide into two or more layers, since the volume of the whole water sump part 30 will reduce if multiple protruding parts are formed, how many layers are adjusted suitably.

形状Ｆは、内槽８とは別体で水溜め部３０を取り付けて構成している。別体で取り付けるため、既存の内槽８を構成する部材をそのまま使用することができ、新たな設備投資や特具投資等を抑えることができる。取り付ける水溜め部３０の形状は、形状Ｆに限らず、形状Ａ〜形状Ｅの特徴を持つ水溜め部３０の形状をしたものでも良い。また、取り付ける水溜め部３０は、内槽８の外周端から飛び出ない寸法で形成されるのが好ましい。   The shape F is configured separately from the inner tank 8 by attaching the water reservoir 30. Since it attaches separately, the member which comprises the existing inner tank 8 can be used as it is, and new capital investment, special equipment investment, etc. can be suppressed. The shape of the water reservoir 30 to be attached is not limited to the shape F, but may be the shape of the water reservoir 30 having the characteristics of the shapes A to E. Moreover, it is preferable that the water reservoir 30 to be attached is formed with a size that does not protrude from the outer peripheral end of the inner tank 8.

図１７は、外槽カバー９ａに設けられる給水口２０と、流体バランサ８ａ上面に形成される水溜め部３０の配置関係を示す図である。給水口２０は水溜め部３０と対抗するように配置され、給水口２０から出る水が水溜め部３０に給水されるように設けられる。   FIG. 17 is a diagram showing the positional relationship between the water supply port 20 provided in the outer tank cover 9a and the water reservoir 30 formed on the upper surface of the fluid balancer 8a. The water supply port 20 is disposed so as to oppose the water reservoir 30, and is provided so that water discharged from the water supply port 20 is supplied to the water reservoir 30.

給水口２０には、内槽８の径方向に並んだ複数の散水口２０ａを有するシャワーカバー２１（給水口カバー）が備えられる。シャワーカバー２１を備えた状態で給水口２０から給水すると、外周側***部３０ｂより内側に位置する散水口２１ａからは水溜め部３０に給水され、外周側***部３０ｂより外側に位置する散水口２１ａから出た水は内槽８外周壁に当たって流れ落ちる。すなわち、シャワーカバー２１を備えることにより、水溜め部３０と内槽８外周壁に給水することができる。   The water supply port 20 is provided with a shower cover 21 (water supply port cover) having a plurality of water spray ports 20 a arranged in the radial direction of the inner tub 8. When water is supplied from the water supply port 20 with the shower cover 21 provided, water is supplied to the water reservoir 30 from the water supply port 21a located on the inner side of the outer peripheral side raised portion 30b, and the water outlet located on the outer side of the outer peripheral side raised portion 30b. The water coming out of 21a hits the outer peripheral wall of the inner tank 8 and flows down. That is, by providing the shower cover 21, water can be supplied to the water reservoir 30 and the outer peripheral wall of the inner tub 8.

図１８は、給水ボックス１６から外槽９内への経路を示す概略図である。給水ボックス１６は、メイン給水電磁弁１６ａや仕上剤／槽洗浄給水電磁弁１６ｂが設けられ、風呂水ポンプ１３や給水経路１６ｃ、１６ｄと連結している。各給水電磁弁は、水道栓からホース等を介して連結され、弁の開閉によって給水量や給水のタイミングを制御する。   FIG. 18 is a schematic diagram showing a path from the water supply box 16 into the outer tub 9. The water supply box 16 is provided with a main water supply electromagnetic valve 16a and a finishing agent / bath cleaning water supply electromagnetic valve 16b, and is connected to the bath water pump 13 and the water supply paths 16c and 16d. Each water supply electromagnetic valve is connected from a water tap via a hose or the like, and controls the amount of water supply or the timing of water supply by opening and closing the valve.

メイン給水電磁弁１６ａを開いて給水した水は、給水経路１６ｃを通ってメイン注水口１６ｅから外槽内へ給水される。詳しい制御については後記するが、仕上剤／槽洗浄給水電磁弁１６ｂを開いて給水し槽洗浄給水室１７から流出した水は、給水経路１６ｄを通って給水口２０から水溜め部３０に給水される。また、仕上剤／槽洗浄給水電磁弁１６ｂを開いて給水し仕上剤収容室１８から流出した水は、メイン給水電磁弁１６ａから給水した水と同様に、給水経路１６ｃを通ってメイン注水口１６ｅから外槽内へ給水される。   The water supplied by opening the main water supply electromagnetic valve 16a is supplied from the main water inlet 16e into the outer tank through the water supply path 16c. Although detailed control will be described later, the finishing agent / tank cleaning water supply electromagnetic valve 16b is opened to supply water, and the water flowing out of the tank cleaning water supply chamber 17 is supplied to the water reservoir 30 from the water supply port 20 through the water supply path 16d. The Further, the water supplied from the finishing agent storage chamber 18 by opening the finishing agent / tank washing water supply electromagnetic valve 16b and flowing out from the finishing agent storage chamber 18 passes through the water supply path 16c and the main water inlet 16e in the same manner as the water supplied from the main water supply electromagnetic valve 16a. Water is supplied into the outer tank.

なお、風呂水ポンプ１３で汲み上げられた吸水ホース接続口５からの風呂水は、給水経路１６ｃに合流してメイン注水口１６ｅから外槽９内に給水する。   In addition, the bath water from the water absorption hose connection port 5 pumped up by the bath water pump 13 joins the water supply path 16c and is supplied into the outer tub 9 from the main water injection port 16e.

図１９に示すように、洗濯機１は、コントロール基盤１１に制御装置１００を備える。制御装置１００は、マイコン１１０を中心に構成される。マイコン１１０は、運転パターンデータベース１１１、工程制御部１１２、回転速度算出部１１３、衣類重量算出部１１４などを備える。   As shown in FIG. 19, the washing machine 1 includes a control device 100 on the control base 11. The control device 100 is configured around a microcomputer 110. The microcomputer 110 includes an operation pattern database 111, a process control unit 112, a rotation speed calculation unit 113, a clothing weight calculation unit 114, and the like.

マイコン１１０は、操作スイッチ７ａから入力された運転コースにあった運転パターンを呼び出し、所定の全自動洗濯コースまたは洗濯、すすぎ、脱水を開始する機能を有する。   The microcomputer 110 has a function of calling an operation pattern corresponding to an operation course input from the operation switch 7a and starting a predetermined fully automatic washing course or washing, rinsing and dehydration.

工程制御部１１２は、運転パターンデータベース１１１から呼び出された運転パターンに基づき、洗い工程、すすぎ工程、脱水工程、槽洗浄工程、の各工程を運転制御する機能を有する。各工程において、工程制御部１１２は、それぞれ駆動回路を介して、給水ユニット１２、排水弁１４、モータ１０ａ、クラッチ機構１０ｂ等を駆動制御する機能を有する。   The process control unit 112 has a function of controlling operation of each of the washing process, the rinsing process, the dehydration process, and the tank washing process based on the operation pattern called from the operation pattern database 111. In each process, the process control unit 112 has a function of driving and controlling the water supply unit 12, the drain valve 14, the motor 10a, the clutch mechanism 10b, and the like via drive circuits.

回転速度算出部１１３は、モータ１０ａの回転を検出する回転検出装置２８からの検出値に基づき、モータ１０ａの回転速度を算出する機能を有する。   The rotation speed calculation unit 113 has a function of calculating the rotation speed of the motor 10a based on the detection value from the rotation detection device 28 that detects the rotation of the motor 10a.

衣類重量算出部１１４は、回転速度算出部１１３で算出された回転速度と、モータ電流検出装置２９の検出値に基づいて、内槽８内の衣類の重量を算出する機能を有する。衣類の重量が増加することにより内槽８を回転させるための負荷が大きくなり、モータ１０ａに流れるモータ電流が多く必要になることから、モータ１０ａのモータ電流と回転速度により衣類の重量を算出することができる。   The clothing weight calculation unit 114 has a function of calculating the weight of clothing in the inner tub 8 based on the rotation speed calculated by the rotation speed calculation unit 113 and the detection value of the motor current detection device 29. Since the load for rotating the inner tub 8 increases due to the increase in the weight of the clothing, and a large amount of motor current flows through the motor 10a, the weight of the clothing is calculated from the motor current and the rotation speed of the motor 10a. be able to.

次に、本実施例に係る洗濯機１の動作について図２０〜図２４を参照して説明する。図２０は本実施例に係る洗濯機の運転工程を説明する工程表、図２１は本実施例に係る洗濯機の槽洗浄運転の詳細な工程図、図２２〜図２４は本実施例に係る洗濯機の槽洗浄時の水の流れを示す模式図である。   Next, operation | movement of the washing machine 1 which concerns on a present Example is demonstrated with reference to FIGS. FIG. 20 is a process chart for explaining the operation process of the washing machine according to the present embodiment, FIG. 21 is a detailed process chart of the tank washing operation of the washing machine according to the present embodiment, and FIGS. 22 to 24 are related to the present embodiment. It is a schematic diagram which shows the flow of the water at the time of the tank washing | cleaning of a washing machine.

洗剤量センシング工程Ｓ１では、回転翼８ｄを回転させ、そのときの負荷量を測定結果から衣類重量算出部１１４が給水前の乾いた状態での布量を算出する。   In the detergent amount sensing step S1, the rotary blade 8d is rotated, and the clothing weight calculation unit 114 calculates the amount of cloth in a dry state before water supply from the measurement result of the load amount at that time.

回転給水工程Ｓ２では、内槽８および／または回転翼８ｄを回転させながら工程制御部１１２がメイン給水電磁弁１６ａを開弁し、給水経路１６ｃを介して水道水をメイン注水口１６ｅから外槽９内に注水する。また、工程制御部１１２は、メイン給水電磁弁１６ａが開弁されてから所定時間経過後に閉弁する。   In the rotating water supply process S2, the process control unit 112 opens the main water supply electromagnetic valve 16a while rotating the inner tank 8 and / or the rotary blade 8d, and tap water is supplied from the main water inlet 16e through the water supply path 16c. Pour water into 9. Further, the process control unit 112 closes after a predetermined time has elapsed since the main water supply electromagnetic valve 16a was opened.

洗剤溶かし工程Ｓ３では、内槽８に備えられた洗剤投入口より、回転翼８ｄ下側へ投入された洗剤を回転翼８ｄが回転することにより、回転給水工程Ｓ２で給水された水に溶かし、高濃度な洗剤液を作る。   In the detergent dissolving step S3, the detergent introduced to the lower side of the rotary blade 8d from the detergent inlet provided in the inner tub 8 is dissolved in the water supplied in the rotary water supply step S2 by rotating the rotary blade 8d, Make a detergent solution with high concentration.

給水工程Ｓ４では、工程制御部１１２がメイン給水電磁弁１６ａを開弁し、水道水が給水経路１６ｃを介してメイン注水口１６ｅから外槽９内に注水される。また、工程制御部１１２は、メイン給水電磁弁１６ａが開弁されてから所定時間経過後に閉弁する。   In the water supply process S4, the process control unit 112 opens the main water supply electromagnetic valve 16a, and tap water is injected into the outer tub 9 from the main water inlet 16e via the water supply path 16c. Further, the process control unit 112 closes after a predetermined time has elapsed since the main water supply electromagnetic valve 16a was opened.

浸透かくはん工程Ｓ５では、水位の低い状態で回転翼８ｄを回転させ、洗剤溶かし工程Ｓ３で作られた高濃度な洗剤液を衣類に浸透させる。   In the osmotic stirring step S5, the rotary blade 8d is rotated in a state where the water level is low, and the high-concentration detergent liquid produced in the detergent dissolving step S3 is allowed to penetrate into the clothes.

布量センシング工程Ｓ６では、回転翼８ｄを回転させ、衣類重量算出部１１４が、水を含んだ状態の衣類の重量を算出する。   In the cloth amount sensing step S6, the rotary blade 8d is rotated, and the clothing weight calculation unit 114 calculates the weight of the clothing containing water.

給水工程Ｓ７では、工程制御部１１２が、洗剤量センシング工程Ｓ１で算出した衣類の重量と、布質センシング工程Ｓ６で判断した衣類の布質に合わせて外槽９の内部に給水する。   In the water supply step S7, the process control unit 112 supplies water into the outer tub 9 in accordance with the weight of the clothing calculated in the detergent amount sensing step S1 and the clothing quality determined in the fabric quality sensing step S6.

前洗い工程Ｓ８では、高濃度の洗剤溶液で衣類を洗う。   In the pre-washing step S8, the clothes are washed with a high-concentration detergent solution.

布質センシング工程Ｓ９では、洗剤量センシング工程Ｓ１で算出した衣類の重量と布量センシング工程Ｓ６で算出した水を含んだ状態の衣類の重量から、衣類の布質（吸水性）を判断する。判断された衣類の布質に従って以下の工程が制御される。   In the cloth quality sensing step S9, the cloth quality (water absorption) of the clothes is determined from the weight of the clothes calculated in the detergent amount sensing step S1 and the weight of the clothes including water calculated in the cloth amount sensing step S6. The following steps are controlled according to the determined cloth quality of the garment.

本洗い工程Ｓ１０では、工程制御部１１２が、回転翼８ｄを回転して、衣類を洗う。なお、図示していないが、本洗い工程Ｓ１０では、回転翼８ｄを正方向逆方向に交互に回転させ衣類をほぐす運転も行う。また、工程制御部１１２は、この本洗い工程とほぐし工程を数回繰り返す。本洗いが終了すると、衣類のアンバランス状態を監視し、脱水に移行するか否かを判断する。   In the main washing step S10, the process control unit 112 rotates the rotary blade 8d to wash the clothes. Although not shown, in the main washing step S10, an operation of loosening clothes by rotating the rotary blades 8d alternately in the forward and reverse directions is also performed. Further, the process control unit 112 repeats the main washing process and the loosening process several times. When the main washing is completed, the unbalanced state of the clothing is monitored to determine whether or not to shift to dehydration.

排水工程Ｓ１１では、工程制御部１１２が、排水弁１４を開弁し、外槽９内の洗い水を排水する。   In the drainage process S11, the process control unit 112 opens the drain valve 14 and drains the wash water in the outer tub 9.

脱水工程Ｓ１２では、排水終了後、工程制御部１１２が、内槽８を回転させて衣類に含まれる水（洗い水）を脱水する。   In the dehydration step S12, after drainage is completed, the process control unit 112 rotates the inner tub 8 to dehydrate water (wash water) contained in the clothing.

回転シャワー工程Ｓ１３では、工程制御部１１２が、排水弁１４を閉弁、メイン給水電磁弁１６ａを開弁して、外槽９にすすぎ水を供給する。そして、内槽８を回転させることにより衣類に満遍なくすすぎ水を散布する。   In the rotary shower process S <b> 13, the process control unit 112 closes the drain valve 14 and opens the main water supply electromagnetic valve 16 a to supply rinse water to the outer tub 9. Then, by rotating the inner tub 8, rinsing water is evenly sprayed on the clothing.

脱水工程Ｓ１４では、工程制御部１１２が、内槽８を回転させ、衣類からすすぎ水を脱水する。   In the dehydration step S14, the process control unit 112 rotates the inner tub 8 to dehydrate the rinse water from the clothes.

回転シャワー工程Ｓ１５では、工程制御部１１２が、再び内槽８を回転させつつ、排水弁１４を閉弁、メイン給水電磁弁１６ａを開弁して、外槽９にすすぎ水を供給し、すすぎ水を内槽８内の衣類に散布する。   In the rotary shower process S15, the process control unit 112 closes the drain valve 14 and opens the main water supply electromagnetic valve 16a while rotating the inner tank 8 again to supply rinse water to the outer tank 9 and rinse it. Water is sprayed on the clothes in the inner tub 8.

排水工程Ｓ１６では、工程制御部１１２が、回転翼８ｄおよび内槽８を停止させて、排水弁１４を開弁し、外槽９内のすすぎ水を排水する。   In the draining process S16, the process control unit 112 stops the rotary blade 8d and the inner tank 8, opens the drain valve 14, and drains the rinsing water in the outer tank 9.

脱水工程Ｓ１７では、排水工程Ｓ１６終了後、工程制御部１１２が、内槽８を回転させて衣類に含まれる水（すすぎ水）を脱水する。   In the dehydration step S17, after the drainage step S16 ends, the process control unit 112 rotates the inner tub 8 to dehydrate water (rinse water) contained in the clothing.

給水工程Ｓ１８では、工程制御部１１２が、排水弁１４を閉弁、メイン給水電磁弁１６ａを開弁するとともに、仕上剤／槽洗浄給水電磁弁１６ｂを開弁して給水ボックス１６に給水する。工程制御部１１２が、流入口１７ａから槽洗浄給水室１７へ給水し続けることで、槽洗浄給水室１７から溢れさせて仕上剤収容室１８へ注水する。そのまま、仕上剤／槽洗浄給水電磁弁１６ｂを開弁して給水を続け、仕上剤収容室１８の流出口１８ａおよびオーバーフロー室１９から外槽に仕上剤を含むすすぎ水を供給する。なお、サイフォン発生までの所要時間は、仕上剤／槽洗浄給水電磁弁１６ｂを開いたときの流入量、槽洗浄給水室１７の流出口１７ｂの流出量、槽洗浄給水室１７の容積、仕上剤収容室１８の容積等に依存する。   In the water supply step S18, the process control unit 112 closes the drain valve 14, opens the main water supply electromagnetic valve 16a, and opens the finisher / bath cleaning water supply electromagnetic valve 16b to supply water to the water supply box 16. The process control unit 112 continues to supply water from the inflow port 17 a to the tank cleaning water supply chamber 17, thereby overflowing the tank cleaning water supply chamber 17 and pouring water into the finishing agent storage chamber 18. The finishing agent / tank washing water supply electromagnetic valve 16b is opened as it is, and the water supply is continued, and rinse water containing the finishing agent is supplied from the outlet 18a of the finishing agent storage chamber 18 and the overflow chamber 19 to the outer tank. The time required until the siphon is generated includes the amount of inflow when the finishing agent / tank cleaning water supply electromagnetic valve 16b is opened, the amount of outflow of the outlet 17b of the tank cleaning water supply chamber 17, the volume of the tank cleaning water supply chamber 17, and the finishing agent. It depends on the volume of the storage chamber 18 and the like.

そして、所定時間経過した後、仕上剤／槽洗浄給水電磁弁１６ｂを閉じると、サイフォン現象によって仕上剤収容室１８のほぼ全ての液体が外槽へ流れ出る。給水工程Ｓ１８の間は、槽洗浄給水室１７にも給水されるので槽洗浄用給水口からも給水が行われるが、すすぎ水として利用できるため無駄にならない。   When the finishing agent / tank washing water supply electromagnetic valve 16b is closed after a lapse of a predetermined time, almost all the liquid in the finishing agent storage chamber 18 flows out to the outer tank due to the siphon phenomenon. During the water supply step S18, water is supplied also to the tank cleaning water supply chamber 17, so water is supplied from the tank cleaning water supply port, but it is not wasted because it can be used as rinse water.

かくはん工程Ｓ１９では、工程制御部１１２が、外槽９にすすぎ水を溜めた状態で内槽８を回転させて衣類を攪拌しつつすすぐ。   In the stirring step S19, the process control unit 112 rotates the inner tub 8 in a state where rinsing water is accumulated in the outer tub 9, and rinses the clothes.

次に、図２０の工程表に沿って、適宜、図２２〜図２４を参照しながら、槽洗浄運転について説明する。図２１は、槽洗浄工程Ｓ２０から脱水Ｓ２５に至るまでの詳細な制御を示す工程図である。   Next, the tank cleaning operation will be described along the process chart of FIG. 20 with reference to FIGS. 22 to 24 as appropriate. FIG. 21 is a process diagram showing detailed control from the tank cleaning step S20 to the dehydration S25.

まず、槽洗浄工程Ｓ２０について説明する。工程制御部１１２は、すすぎ水が所定の水位ｓ以下かどうかを判断し、所定水位ｓより水位が高い場合は排水弁１４を開弁して、すすぎ水を排水する。この所定水位ｓは、例えば、内槽８の底面や回転翼８ｄ底面よりも高い水位とする。所定水位ｓ以下になったら、排水弁１４を閉弁する。このように、すすぎ工程で利用した水の一部を排水し、残りのすすぎ水を外槽９の底に溜めた状態で内槽８と回転翼８ｄを一方回転もしくは正逆回転させ、内槽８底面の上面および下面、回転翼８ｄ底面の下面、外槽９底面の上面に付着した汚れを洗浄する残水攪拌が所定時間（例えば７０〜１２０ｓ）行われる。このときの回転数は、洗い工程のときより高くて脱水工程のときより低い、例えば７０rpm以上３００rpm以下とする。   First, the tank cleaning step S20 will be described. The process control unit 112 determines whether or not the rinse water is equal to or lower than the predetermined water level s. If the water level is higher than the predetermined water level s, the process control unit 112 opens the drain valve 14 to drain the rinse water. For example, the predetermined water level s is higher than the bottom surface of the inner tub 8 and the bottom surface of the rotary blade 8d. When the water level falls below the predetermined water level s, the drain valve 14 is closed. In this way, a part of the water used in the rinsing process is drained, and the inner tub 8 and the rotary blade 8d are rotated one or both forwards and backwards in a state where the remaining rinsing water is accumulated at the bottom of the outer tub 9, Residual water agitation is performed for a predetermined time (for example, 70 to 120 s) for cleaning dirt adhering to the upper and lower surfaces of the bottom surface, the lower surface of the bottom surface of the rotary blade 8d, and the bottom surface of the outer tub 9. The rotation speed at this time is higher than that in the washing step and lower than that in the dehydration step, for example, 70 rpm to 300 rpm.

ここで、内槽８と回転翼８ｄをともに回転させても良いし、内槽８または回転翼８ｄのみを回転させても良い。回転翼８ｄを回転させずに内槽８のみを回転させた場合は、回転翼８ｄと内槽８の両方を回転させる場合と比べて、回転翼８ｄ底面の下面や内槽８底面の上面は効率良く洗浄できる。また、内槽８を回転させずに回転翼８ｄのみを回転させた場合も、内槽８と回転翼８ｄの両方を回転させる場合と比べて、回転翼８ｄ底面の下面や内槽８底面の上面は効率良く洗浄できるが、内槽８底面の下面や外槽９底面の上面は洗浄できないので、別途内槽８を回転させる工程を設けることになる。   Here, both the inner tank 8 and the rotary blade 8d may be rotated, or only the inner tank 8 or the rotary blade 8d may be rotated. When only the inner tub 8 is rotated without rotating the rotor blade 8d, the lower surface of the bottom surface of the rotor blade 8d and the upper surface of the bottom surface of the inner tank 8 are compared with the case where both the rotor blade 8d and the inner tank 8 are rotated. It can be cleaned efficiently. Further, when only the rotating blade 8d is rotated without rotating the inner tank 8, the lower surface of the bottom surface of the rotating blade 8d and the bottom surface of the inner tank 8 are compared with the case where both the inner tank 8 and the rotating blade 8d are rotated. Although the upper surface can be cleaned efficiently, the lower surface of the bottom surface of the inner tub 8 and the upper surface of the bottom surface of the outer tub 9 cannot be cleaned, and therefore a separate step of rotating the inner tub 8 is provided.

そして、この回転翼８ｄが回転している間に、排水弁１４を開弁して排水を開始し、排水工程Ｓ２１（中間排水）に入る。排水弁１４を開弁するタイミングは、外槽９の底に溜まった水量や排水性能などによって変動するが、本実施例では残水撹拌の開始から約５０秒後に開弁する。更に、回転翼８ｄが回転している間に、外槽９内の水を全て排水することによって、回転翼８ｄの裏側や内槽８の底面の洗浄により一旦落とした汚れが、回転翼８ｄの裏側に再度付着するのを防止できる。なお、回転翼８ｄが回転している間に排水が完了せず、排水の途中で回転翼８ｄを停止させる場合でも、回転の停止時に既に回転翼８ｄの底部より低い水位まで排水できていれば、回転翼８ｄの裏側への再付着は抑制できる。また、内槽８の回転中に内槽８の内側底面最下部より低い水位まで排水できれば、内槽８の底部上面に汚れが再付着するのを抑制でき、内槽８の回転中に内槽８の外側底面最下部より低い水位まで排水できていれば、内槽８の底部下面に汚れが再付着するのを抑制できる。   And while this rotary blade 8d is rotating, the drain valve 14 is opened, drainage is started, and it enters into drainage process S21 (intermediate drainage). The timing for opening the drain valve 14 varies depending on the amount of water accumulated at the bottom of the outer tub 9 and drainage performance, but in this embodiment, the valve is opened about 50 seconds after the start of the remaining water stirring. Further, while the rotary blade 8d is rotating, all the water in the outer tub 9 is drained, so that the dirt once removed by washing the back side of the rotary wing 8d and the bottom surface of the inner tub 8 is removed from the rotary wing 8d. It can be prevented from adhering to the back side again. Even if the drainage is not completed while the rotary blade 8d is rotating and the rotary blade 8d is stopped in the middle of drainage, if the water level is already lower than the bottom of the rotary blade 8d when the rotation is stopped. The reattachment of the rotary blade 8d to the back side can be suppressed. Further, if the water level can be drained to a level lower than the lowermost inner bottom surface of the inner tub 8 during the rotation of the inner tub 8, it is possible to prevent dirt from reattaching to the upper surface of the bottom of the inner tub 8. If the water level can be drained to a level lower than the lowermost part of the outer bottom surface of 8, the reattachment of dirt to the bottom surface of the bottom of the inner tank 8 can be suppressed.

次に、槽洗浄シャワー（１）工程Ｓ２２に移行する。この槽洗浄シャワー（１）工程Ｓ２２では、仕上剤／槽洗浄給水電磁弁１６ｂの開閉を所定のインターバルで繰り返すことで、槽洗浄給水室１７のみに給水して水溜め部３０へ水を供給する。槽洗浄給水室１７から水を溢れさせて仕上剤収容室１８に水を流入させてしまうと、仕上剤収容室１８内で残水となってしまい、仮にサイフォンによって仕上剤収容室１８の流出口１８ａから外槽へ排出させたとしても水溜め部に給水されないため無駄となってしまう。   Next, it transfers to tank washing shower (1) process S22. In this tank cleaning shower (1) step S22, the finishing agent / tank cleaning water supply electromagnetic valve 16b is repeatedly opened and closed at a predetermined interval to supply water only to the tank cleaning water supply chamber 17 and supply water to the water reservoir 30. . If water overflows from the tank cleaning water supply chamber 17 and flows into the finishing agent storage chamber 18, the remaining water is left in the finishing agent storage chamber 18, and temporarily flows out of the finishing agent storage chamber 18 by a siphon. Even if it is discharged from 18a to the outer tub, water is not supplied to the water reservoir and is wasted.

仕上剤／槽洗浄給水電磁弁１６ｂの開閉時間は、水道圧によって変更し、高水圧のときは低水圧のときと比較して仕上剤／槽洗浄給水電磁弁１６ｂの開弁時間を長くする。例えば、水圧が「４Ｌ／min≦Ｑ≦６Ｌ／min」（高水圧）の場合、仕上剤／槽洗浄給水電磁弁１６ｂは、３.５秒ＯＮ−６秒ＯＦＦを繰り返す。そして、水圧が「３Ｌ／min≦Ｑ＜４Ｌ／min」（低水圧）の場合、仕上剤／槽洗浄給水電磁弁１６ｂは、６秒ＯＮ−６秒ＯＦＦを繰り返す。この仕上剤／槽洗浄給水電磁弁１６ｂの開閉時間は、槽洗浄給水室１７から水が溢れ出さないように、かつ、水溜め部に給水し続けるため槽洗浄給水室１７の水が空にならないように考慮して決定する。そのため、槽洗浄給水室１７の容積は大きいほど、仕上剤／槽洗浄給水電磁弁１６ｂの開弁時間を長くすることができ、制御し易くなる。例えば、仕上剤収容室１８よりも容積を大きくする。   The opening / closing time of the finishing agent / bath cleaning water supply electromagnetic valve 16b is changed depending on the water pressure, and the opening time of the finishing agent / bath cleaning water supply electromagnetic valve 16b is made longer at the high water pressure than at the low water pressure. For example, when the water pressure is “4 L / min ≦ Q ≦ 6 L / min” (high water pressure), the finish / bath cleaning water supply electromagnetic valve 16 b repeats 3.5 seconds ON-6 seconds OFF. When the water pressure is “3 L / min ≦ Q <4 L / min” (low water pressure), the finishing agent / bath cleaning water supply electromagnetic valve 16b repeats 6 seconds ON-6 seconds OFF. The opening / closing time of the finishing agent / tank washing water supply electromagnetic valve 16b is such that water does not overflow from the tank washing water supply chamber 17, and the water in the tank washing water supply chamber 17 is not emptied because the water is continuously supplied to the water reservoir. To be determined in consideration. Therefore, the larger the volume of the tank cleaning water supply chamber 17 is, the longer the valve opening time of the finishing agent / tank cleaning water supply electromagnetic valve 16b is, and the easier it is to control. For example, the volume is made larger than that of the finishing agent storage chamber 18.

図２２に示すように、水溜め部３０の上部に位置するシャワーカバー２１の散水口から出た水は、水溜め部３０に貯水され、水溜め部３０より外周側に位置するシャワーカバー２１の散水口２１ａから出た水は、流体バランサ８ａの外周壁や内槽８外周壁を伝って流れ落ちる。   As shown in FIG. 22, the water discharged from the water spout of the shower cover 21 located at the upper part of the water reservoir 30 is stored in the water reservoir 30, and the shower cover 21 located on the outer peripheral side of the water reservoir 30. The water exiting from the sprinkling port 21a flows down along the outer peripheral wall of the fluid balancer 8a and the outer peripheral wall of the inner tank 8.

図２３に示すように、そのまま給水を続けていると、水溜め部３０に給水された水量が水溜め部３０の容積を上回って外周側***部３０ｂから水が溢れ出る。水溜め部３０から溢れ出た水は、流体バランサ８ａの外周壁を通って内槽８外周壁に沿って流れ落ちる。このように内槽８外周壁に水が流れることで、内槽８外周壁に付着した汚れを洗い流すことができる。   As shown in FIG. 23, when water supply is continued as it is, the amount of water supplied to the water reservoir 30 exceeds the volume of the water reservoir 30, and water overflows from the outer peripheral bulge 30b. The water overflowing from the water reservoir 30 flows down along the outer peripheral wall of the inner tank 8 through the outer peripheral wall of the fluid balancer 8a. Thus, the water adhering to the outer peripheral wall of the inner tub 8 allows the dirt attached to the outer peripheral wall of the inner tub 8 to be washed away.

このとき、内槽８を回転させながら給水しているので、外周側***部３０ｂから満遍なく水を溢れさせることができる。また、この内槽８外周壁を流れ落ちる水は、初めに流れた経路をたどるように流れ易く、特に溢れ出る水量が少ない場合には水が流れる経路が固定化されやすい。そうすると、内槽８外周壁に満遍なく水が流れ落ちずに線状の洗いムラが発生してしまう。そのため、内槽８の回転を一方方向とせずに正逆回転させることで水が流れる経路を変化させられ、満遍なく水を行き渡らせることができる。なお、水量を増やすことでも線状の洗いムラを防ぐことができるが、正逆回転を行うと、より少ない水量で内槽８を満遍なく洗浄できる。   At this time, since water is supplied while rotating the inner tub 8, water can be evenly overflowed from the outer peripheral bulge portion 30b. Further, the water flowing down the outer peripheral wall of the inner tub 8 is easy to flow so as to follow the path that first flowed, and when the amount of overflowing water is small, the path through which the water flows is easily fixed. If it does so, water will not flow uniformly on the outer peripheral wall of the inner tank 8, and a linear washing nonuniformity will generate | occur | produce. Therefore, the path through which the water flows can be changed by rotating the inner tub 8 in the forward and reverse directions without changing the rotation of the inner tank 8 in one direction, so that the water can be evenly distributed. Although the linear washing unevenness can be prevented by increasing the amount of water, the inner tub 8 can be evenly washed with a smaller amount of water if forward and reverse rotation is performed.

正逆回転は、正回転および逆回転を２０ｓずつ６回繰り返し、計１２０ｓ行われる。この運転時間は、予め設定しておいても良いが、汚れセンサや、臭いセンサ、洗濯濃度センサ等の各種センサの実行結果に基づいて決定するようにしても良い。本実施例では、約５Ｌ給水を行うが、正逆回転の時間に応じて給水量は適宜変更される。正逆回転ではなく一方向の回転の場合には給水量を増やすことが望ましい。正逆回転の回転数（回転速度）は、正逆ともに約３０rpm（１分間あたりの回転回数）で行われる。この回転数は、水溜め部３０から水が溢れ出るように適宜調整されるが、５rpm〜６０rpmが良く、より望ましくは２０rpm〜４０rpmが良い。回転数が低過ぎると、外周側***部３０ｂから水が満遍なく溢れ難く、回転数が高過ぎると、水溜め部３０の水が内槽８外周壁に接触せずに内槽８と外槽９の間を落下してしまうか、もしくは外槽９側へ飛散してしまい内槽８外周壁の洗浄が行われない。   The forward / reverse rotation is performed for 120 s in total by repeating forward and reverse rotations 6 times each for 20 s. The operation time may be set in advance, but may be determined based on the execution results of various sensors such as a dirt sensor, an odor sensor, and a laundry concentration sensor. In this embodiment, about 5 L of water is supplied, but the amount of water supply is appropriately changed according to the forward / reverse rotation time. In the case of rotation in one direction instead of forward / reverse rotation, it is desirable to increase the amount of water supply. The number of forward and reverse rotations (rotational speed) is about 30 rpm (number of rotations per minute) in both forward and reverse directions. The number of rotations is adjusted as appropriate so that water overflows from the water reservoir 30, but is preferably 5 to 60 rpm, more preferably 20 to 40 rpm. If the rotational speed is too low, it is difficult for water to evenly overflow from the outer peripheral ridge 30b. If the rotational speed is too high, the water in the water reservoir 30 does not contact the outer peripheral wall of the inner tank 8 and the inner tank 8 and the outer tank 9. Or the outer wall of the inner tub 8 is not cleaned.

ここまでに、槽洗浄シャワー（１）工程Ｓ２２における、主に内槽８外周壁を洗浄する制御について説明したが、次に槽洗浄シャワー（２）工程Ｓ２４における外槽９内周壁を洗浄する制御について説明する。   So far, the control for mainly cleaning the outer peripheral wall of the inner tank 8 in the tank cleaning shower (1) step S22 has been described. Next, the control for cleaning the inner peripheral wall of the outer tank 9 in the tank cleaning shower (2) step S24. Will be described.

槽洗浄シャワー（１）工程Ｓ２２で正逆回転を終えた後、仕上剤／槽洗浄給水電磁弁１６ｂを閉弁し、水溜め部３０への給水を停止する。そして、排水工程Ｓ２３に移行し、排水弁１４を開弁して正逆回転中に外槽９の底に溜まった水を徐々に排出し、脱水起動用の水位に戻す。外槽９内の水位が脱水起動用の水位となった後、排水弁１４を閉弁して排水を停止し、槽洗浄シャワー（２）工程Ｓ２４へと移行する。   After finishing the forward and reverse rotation in the tank washing shower (1) step S22, the finishing agent / tank washing water supply electromagnetic valve 16b is closed, and the water supply to the water reservoir 30 is stopped. And it transfers to drainage process S23, the drain valve 14 is opened, the water collected on the bottom of the outer tank 9 during forward / reverse rotation is discharged | emitted gradually, and it returns to the water level for dehydration starting. After the water level in the outer tub 9 becomes the water level for dehydration activation, the drain valve 14 is closed to stop drainage, and the process proceeds to the tank washing shower (2) step S24.

槽洗浄シャワー（２）工程Ｓ２４に移行して、脱水起動が行われると、排水弁１４を開弁する。また、再度、水溜め部３０への給水を開始し、水溜め部３０に水を溜めた状態で内槽８の回転数を加速させる。そうすると、図２４に示すように、水溜め部３０に溜まっている水が遠心力により外周側***部３０ｂを乗り越えて外槽９へ向かって飛散し、外槽９内周壁に当たって流れ落ちる。これにより、給水されている水量だけでなく水溜め部３０に溜められている水量がまとめて外槽９内周壁に勢い良く掛かるため、洗いムラが発生し難く満遍なく外槽９内周壁を洗浄することができる。   When the tank washing shower (2) moves to step S24 and dehydration is started, the drain valve 14 is opened. Further, water supply to the water reservoir 30 is started again, and the rotational speed of the inner tank 8 is accelerated in a state where water is stored in the water reservoir 30. If it does so, as shown in FIG. 24, the water which accumulates in the water reservoir 30 will get over the outer peripheral side protruding part 30b by the centrifugal force, will be scattered toward the outer tank 9, and will fall on the inner peripheral wall of the outer tank 9. As a result, not only the amount of water supplied but also the amount of water stored in the water reservoir 30 is collectively applied to the inner peripheral wall of the outer tub 9, so that washing unevenness hardly occurs and the inner peripheral wall of the outer tub 9 is cleaned evenly. be able to.

このとき、内槽８を回転させる加速度が大きいほど、水溜め部３０に溜められた水を一度により多く外槽９へ飛散させることができる。逆に、加速度が小さい場合は、内槽８の回転数が、水溜め部３０の水が外槽９へ飛散するようになる回転数に達するまでに、水溜め部３０の多くの水が外槽９内周壁に掛からず、外周側***部３０ｂを乗り越えて内槽８外周壁や内槽８と外槽９の間を落下してしまう。よって、外槽９内周壁に当たる水量が減少してしまう。   At this time, the greater the acceleration at which the inner tub 8 is rotated, the more water stored in the water reservoir 30 can be scattered to the outer tub 9 at a time. On the other hand, when the acceleration is small, a lot of water in the water reservoir 30 is removed before the rotational speed of the inner tank 8 reaches the rotational speed at which the water in the water reservoir 30 is scattered to the outer tank 9. It does not hang on the inner peripheral wall of the tank 9, but falls over the outer peripheral side protruding portion 30 b and falls between the outer peripheral wall of the inner tank 8 and between the inner tank 8 and the outer tank 9. Therefore, the amount of water hitting the inner peripheral wall of the outer tub 9 is reduced.

上記の理由から、水溜め部３０に溜められた水を一度により多く外槽９内周壁に掛けるためには、内槽８の回転数を急加速させるのが良い。そのため、水溜め部３０に水を溜めた状態から内槽８を回転させる加速度は、２０rpm／ｓ（１秒間に２０rpm上昇する加速度）以上が良く、望ましくは４０rpm／ｓ以上である。本実施例では５０rpm／ｓ以上としているが、加速度の上限値は、使用するモータの性能や振動を考慮した値となる。なお、水溜め部３０に給水し始めるタイミングは、内槽８の回転数を加速させる前とすることで加速時に飛散する水量を増やすことができる。   For the above reason, in order to apply more water stored in the water reservoir 30 to the inner peripheral wall of the outer tub 9 at a time, the rotational speed of the inner tub 8 is preferably accelerated rapidly. Therefore, the acceleration for rotating the inner tub 8 from the state where water is stored in the water reservoir 30 is preferably 20 rpm / s (acceleration increasing by 20 rpm per second) or more, preferably 40 rpm / s or more. In this embodiment, the speed is set to 50 rpm / s or more, but the upper limit value of acceleration is a value in consideration of the performance and vibration of the motor to be used. In addition, the timing which begins to supply water to the water reservoir 30 can increase the amount of water scattered during acceleration by being before accelerating the rotation speed of the inner tank 8.

本実施例では、脱水起動用の水位に戻すのに外槽９内の水位を計測するため、内槽８の回転を止めているが、回転を止めずに加速し回転数を上げていくことで運転時間を短縮することもできる。その場合、内槽８を回転させた状態から加速するので、水溜め部３０に溜められた水が既に少し溢れた状態であるため、外槽９内周壁へ飛散する水量は、内槽８を停止した状態から加速させるより減ってしまう。   In this embodiment, in order to measure the water level in the outer tub 9 to return to the water level for starting dehydration, the rotation of the inner tub 8 is stopped. However, the rotation speed is increased without stopping the rotation. The operating time can also be shortened. In this case, since the inner tank 8 is accelerated from the rotated state, the water stored in the water reservoir 30 is already slightly overflowed, so that the amount of water scattered on the inner peripheral wall of the outer tank 9 It will be less than accelerating from a stopped state.

従って、多くの水量を飛散させるには内槽８を停止させた状態から加速させるのが望ましいが、内槽８を停止させず回転している状態から加速させる場合には、３０rpm以下で回転している状態から加速するのが良い。なお、水溜め部３０の外周側***部３０ｂを内周側***部３０ａより高く形成している場合には、内槽８回転時に水溜め部３０から溢れる水量を抑えられるとともに、運転時間を短縮することができる。   Therefore, in order to disperse a large amount of water, it is desirable to accelerate from the state where the inner tub 8 is stopped. However, when accelerating from the state where the inner tub 8 is rotating without stopping, it is rotated at 30 rpm or less. It is better to accelerate from the state. In addition, when the outer peripheral side bulging portion 30b of the water reservoir 30 is formed higher than the inner peripheral bulging portion 30a, the amount of water overflowing from the water reservoir 30 when the inner tub 8 rotates can be suppressed and the operation time can be shortened. can do.

内槽８の回転数を約１３０rpmまで加速させた後、一旦加速を停止する。そして、そのまま内槽８を回転させながら水溜め部３０への給水を続ける。加速は停止しているが、内槽８の回転数は、水溜め部３０の水が外槽９へ飛散する回転数に達しているため、水溜め部３０に給水される水が外周側***部３０ｂを乗り越えて外槽９へ飛散し、外槽９内周壁へ当たり続ける。これにより、外槽９内周壁に当たった水が流れ落ち、外槽９内周壁に付着している汚れを洗い流す。この運転は、所定時間（約８０ｓ）行われ、その間に合計約３Ｌが給水される。所定時間経過後、水溜め部３０への給水を停止し、槽洗浄シャワー（２）工程Ｓ２４を終了する。   After the rotational speed of the inner tank 8 is accelerated to about 130 rpm, the acceleration is temporarily stopped. Then, water supply to the water reservoir 30 is continued while rotating the inner tank 8 as it is. Although the acceleration is stopped, the rotation speed of the inner tank 8 has reached the rotation speed at which the water in the water reservoir 30 scatters to the outer tank 9, so that the water supplied to the water reservoir 30 is raised on the outer peripheral side. It jumps over the part 30b and scatters to the outer tub 9, and continues to hit the inner peripheral wall of the outer tub 9. Thereby, the water which hit the inner peripheral wall of the outer tub 9 flows down, and the dirt adhering to the inner peripheral wall of the outer tub 9 is washed away. This operation is performed for a predetermined time (about 80 s), during which a total of about 3 L is supplied. After a predetermined time has elapsed, water supply to the water reservoir 30 is stopped, and the tank cleaning shower (2) step S24 is completed.

ここまで、槽洗浄シャワー（２）工程Ｓ２４について説明したが、水溜め部３０から水を溢れさせて行う内槽洗浄運転は実行せずに省略することで、槽洗浄シャワー（２）工程Ｓ２４による運転時間全体の延長を抑制することができる。すなわち、水溜め部３０に水を溜めた後に内槽８の回転数を加速させて水を飛散させる外槽洗浄運転だけを行う場合は、外槽洗浄運転で増加した内槽８の回転数をそのまま利用して脱水工程Ｓ２５に移行できるため脱水運転時間の延長となり難い。外槽洗浄運転でも衣類の脱水が行われているので、外槽洗浄運転は、脱水工程Ｓ２５の一部として同時に行うこともできる。   So far, the tank cleaning shower (2) step S24 has been described, but the inner tank cleaning operation performed by overflowing the water from the water reservoir 30 is omitted without being executed, so that the tank cleaning shower (2) step S24 is performed. The extension of the entire operation time can be suppressed. That is, when only the outer tank cleaning operation for accelerating the rotation speed of the inner tank 8 and splashing water after accumulating water in the water reservoir 30 is performed, the rotation speed of the inner tank 8 increased by the outer tank cleaning operation is set. Since it can be used as it is and can proceed to the dehydration step S25, it is difficult to extend the dehydration operation time. Since clothes are dehydrated in the outer tub cleaning operation, the outer tub cleaning operation can be performed simultaneously as part of the dehydration step S25.

なお、水溜め部３０に水を溜めた後に内槽８の回転数を加速させて水を飛散させる外槽洗浄運転は、複数回行っても良い。すなわち、水溜め部３０の水を飛散させた後、内槽８の回転数を減速して水溜め部３０に水を溜め直し、再度、内槽８の回転数を加速させる運転を行う。この場合、内槽８の回転数を一旦下げるため時間の延長となるが、内槽８を略一定速度で回転させながら水を飛散させ続ける外槽洗浄より、一度に多量の水を飛散させる外槽洗浄の方が効率的に洗浄できるため、給水量を抑えられ節水に繋がる。   It should be noted that the outer tank cleaning operation in which the water is scattered in the water tank 30 by accelerating the rotational speed of the inner tank 8 after the water is stored in the water reservoir 30 may be performed a plurality of times. That is, after the water in the water reservoir 30 is scattered, the number of revolutions of the inner tank 8 is reduced, the water is re-accumulated in the water reservoir 30, and the operation of increasing the number of revolutions of the inner tank 8 is performed again. In this case, the time is extended because the number of revolutions of the inner tank 8 is temporarily reduced. However, the outer tank cleaning that continuously spatters water while rotating the inner tank 8 at a substantially constant speed causes a large amount of water to be scattered at once. Since tank cleaning can be performed more efficiently, the amount of water supply can be reduced, leading to water saving.

また、本実施例では、外槽洗浄運転時に内槽８の回転数が約１３０rpmとなるまで加速させるが、振動が大きくなる一次共振点が７０〜９０rpmに存在する。そのため、内槽８の回転数を何度も一次共振点を通過させると、振動発生のリスクを増大させてしまう。したがって、水溜め部３０に水を溜めた状態で、内槽８の回転数を加速させる外槽洗浄運転を行うとき、内槽８の回転数を６０rpm以下で行うことで振動を抑えて洗浄することができる。   Further, in this embodiment, the outer tank cleaning operation is accelerated until the rotational speed of the inner tank 8 reaches about 130 rpm, but there is a primary resonance point at which the vibration increases at 70 to 90 rpm. Therefore, if the number of rotations of the inner tub 8 is passed through the primary resonance point many times, the risk of occurrence of vibration increases. Therefore, when performing the outer tank cleaning operation for accelerating the rotation speed of the inner tank 8 in a state where water is stored in the water reservoir 30, cleaning is performed by suppressing the vibration by performing the rotation speed of the inner tank 8 at 60 rpm or less. be able to.

同様に、二次共振点が２５０rpm付近に存在するため、内槽８を略定速回転させながら水溜め部３０から水を飛散させる外槽洗浄運転を行うときは、内槽８の回転数は、一次共振点と二次共振点の間となるように１００〜２４０rpmとするのが良い。二次共振点を通過した後、内槽８の回転数が高くなった状態で水溜め部３０に給水すると、外槽９だけでなく外槽カバー９ａへ多量の水が飛散してしまうので、給水するタイミングはこれを考慮して設定される。ここで、本実施例のように、乾燥機能がなく内蓋が設置されていない全自動洗濯機の場合は、水跳ね防止のため上述の回転数程度までしか高速にできないが、外槽を密閉するための内蓋が存在する洗濯乾燥機の場合は、更に高速回転させながら外槽洗浄運転を行うことも可能である。   Similarly, since the secondary resonance point exists in the vicinity of 250 rpm, when performing the outer tank cleaning operation in which water is scattered from the water reservoir 30 while rotating the inner tank 8 at a substantially constant speed, the rotational speed of the inner tank 8 is It is good to set it as 100-240 rpm so that it may become between a primary resonance point and a secondary resonance point. After passing through the secondary resonance point, when water is supplied to the water reservoir 30 in a state where the rotational speed of the inner tank 8 is high, a large amount of water is scattered not only in the outer tank 9 but also in the outer tank cover 9a. The water supply timing is set in consideration of this. Here, as in this embodiment, in the case of a fully automatic washing machine that does not have a drying function and no inner lid is installed, the outer tub is hermetically sealed, although it can only be increased to the above-mentioned rotational speed to prevent water splashing. In the case of a washing / drying machine having an inner lid for carrying out, it is possible to perform the outer tub washing operation while rotating at a higher speed.

次に、脱水工程Ｓ２５に移行する。脱水工程Ｓ２５は、槽洗浄シャワー（２）工程Ｓ２４で内槽８を回転させているそのままの状態で移行し、内槽８の回転数を約２００rpmまで加速させる。内槽８の回転数が上がることで、水溜め部３０に残っている水が外槽９内周壁に飛散し、外槽９内周壁を洗浄する。   Next, the process proceeds to the dehydration step S25. The dehydration step S25 is performed while the inner tank 8 is being rotated in the tank washing shower (2) step S24, and the rotational speed of the inner tank 8 is accelerated to about 200 rpm. As the rotational speed of the inner tank 8 increases, the water remaining in the water reservoir 30 scatters on the inner peripheral wall of the outer tank 9 and cleans the inner peripheral wall of the outer tank 9.

脱水工程Ｓ２５では、内槽の回転数を段階的に加速し、約８５０rpmで回転させることで、衣類に含まれる水分を取り除く。なお、ユーザが設定することにより、約１０００rpmで回転させることもある。槽洗浄シャワー（２）工程２４の後に、内槽８を高速回転させる脱水工程Ｓ２５を行うことで、水溜め部３０に溜まった水のほぼ全てが飛散するため、水溜め部３０に水が残り難く、湿気や水垢の原因とならない。また、衣類に含まれていた水分が貫通孔８ｃを介して内槽８の外側へ飛び出し、外槽９の内面に当たることになるので、これによっても外槽９の内周壁面を洗い流すことができる。そして、脱水工程Ｓ２５によって衣類の脱水を終えると、全ての運転工程を終了する。   In the dehydration step S25, the rotational speed of the inner tub is accelerated stepwise and rotated at about 850 rpm to remove moisture contained in the clothing. In addition, it may be rotated at about 1000 rpm by setting by the user. After the tank washing shower (2) step 24, the dehydration step S25 for rotating the inner tub 8 at high speed is performed, so that almost all of the water accumulated in the water reservoir 30 is scattered, so that water remains in the water reservoir 30. Difficult, does not cause moisture or scale. Further, moisture contained in the clothes jumps out of the inner tub 8 through the through hole 8c and hits the inner surface of the outer tub 9, so that the inner peripheral wall surface of the outer tub 9 can also be washed away. . And if dehydration of clothing is completed by dehydration process S25, all the operation processes will be completed.

以上説明したように、本実施例における洗濯機１では、外槽カバー９ａに、給水ユニット１２から供給された水道水を内槽８の上部に設けた流体バランサ８ａ上面に形成される水溜め部３０に給水する給水口２０が設けられている。また、給水口２０には、内槽８の径方向に複数の散水口２１ａを有するシャワーカバー２１が設けられる。   As described above, in the washing machine 1 according to the present embodiment, the water reservoir formed on the upper surface of the fluid balancer 8a in which the tap water supplied from the water supply unit 12 is provided in the upper part of the inner tank 8 in the outer tank cover 9a. A water supply port 20 for supplying water to 30 is provided. The water supply port 20 is provided with a shower cover 21 having a plurality of water spray ports 21 a in the radial direction of the inner tub 8.

水溜め部３０は、内周側***部３０ａと外周側***部３０ｂとで挟まれるように形成されている。外周側***部３０ｂは、内周側***部３０ａより高くなるように形成され、外周側***部３０ｂの内周面３０ｂ１と外周面３０ｂ２は、略鉛直に形成される。水溜め部３０の深さは、内槽８回転軸に近い内周側より外周側が深くなるように形成される。   The water reservoir 30 is formed so as to be sandwiched between the inner circumferential raised portion 30a and the outer circumferential raised portion 30b. The outer peripheral bulge 30b is formed to be higher than the inner peripheral bulge 30a, and the inner peripheral surface 30b1 and the outer peripheral surface 30b2 of the outer peripheral bulge 30b are formed substantially vertically. The depth of the water reservoir 30 is formed so that the outer peripheral side is deeper than the inner peripheral side near the inner tank 8 rotation axis.

内槽８を正逆回転させながらシャワーカバー２１から水を供給することで、一部の水が水溜め部３０に貯水され、一部は内槽８外周壁を伝って流れ落ちる。そのまま給水し続けると、水溜め部３０から溢れ出した水が内槽８外周壁に流れる。このとき、内槽８を回転させながら水を溢れさせるため、溢れ出す位置が偏り難く満遍なく内槽８外周壁を水が流れる。また、正逆回転させることにより、水が流れる経路が固定化されずに内槽８外周壁全体に水が行き渡り易くなる。これにより、内槽８外周壁に汚れやゴミが付着するのを抑制できるので、カビの繁殖や異臭の発生等が抑制され、内槽８を清潔に保つことができる。さらに、洗濯物へのゴミの付着も防止または抑制することができる。   By supplying water from the shower cover 21 while rotating the inner tank 8 forward and backward, a part of the water is stored in the water reservoir 30 and a part flows down along the outer peripheral wall of the inner tank 8. If the water supply is continued as it is, the water overflowing from the water reservoir 30 flows to the outer peripheral wall of the inner tank 8. At this time, since the water overflows while rotating the inner tank 8, the overflow position is not easily biased, and the water flows evenly on the outer peripheral wall of the inner tank 8. Moreover, by rotating forward and reverse, the water flow path is not fixed and the water can easily reach the entire outer peripheral wall of the inner tank 8. As a result, it is possible to suppress dirt and dust from adhering to the outer peripheral wall of the inner tub 8, so that the growth of mold and the generation of a strange odor are suppressed, and the inner tub 8 can be kept clean. Furthermore, it is possible to prevent or suppress dust from adhering to the laundry.

水溜め部３０に給水して水を溜めた状態で、内槽８の回転数を加速させることで、水溜め部３０の水を一度にまとめて外槽９へ飛散させる。槽に水を流して洗浄する際、水量が少ないと水が流れる経路が固定化されてしまい、線状の洗いムラが発生してしまう虞があるが、水溜め部３０に溜まった水がまとめて外槽９内周壁を流れるので、外槽９内周壁を満遍なく洗浄できる。したがって、外槽９内周壁に汚れやゴミが付着するのを抑制できるので、カビの繁殖や異臭の発生等が抑制され、外槽９を清潔に保つことができる。さらに、洗濯物へのゴミの付着も防止または抑制することができる。   In a state where water is supplied to the water reservoir 30 and the water is stored, the number of rotations of the inner tank 8 is accelerated, so that water in the water reservoir 30 is gathered and scattered to the outer tank 9 at a time. When washing with water flowing in the tank, if the amount of water is small, the path through which the water flows is fixed, and there is a risk that linear washing unevenness may occur, but the water collected in the water reservoir 30 is collected. The inner peripheral wall of the outer tub 9 flows through the outer tub 9 so that the inner peripheral wall of the outer tub 9 can be washed evenly. Therefore, it is possible to suppress dirt and dust from adhering to the inner peripheral wall of the outer tub 9, so that the growth of mold and the generation of a strange odor are suppressed, and the outer tub 9 can be kept clean. Furthermore, it is possible to prevent or suppress dust from adhering to the laundry.

また、槽洗浄シャワー（２）運転Ｓ２４から脱水に移行することで、内槽８を回転させた状態のままで脱水を開始できるので、槽洗浄シャワー運転による運転時間の延長を短縮することができる。また、槽洗浄シャワー運転Ｓ２２、Ｓ２４は、各すすぎ工程の間または前後に行っても良いが、外槽９内の水がなるべくきれいな状態である最終脱水前に行うことが望ましい。なお、最終脱水後に槽洗浄シャワー（２）運転Ｓ２４を行うと水溜め部３０に水が残ってしまう虞があり、湿気や水垢の原因となってしまう。   Moreover, since it transfers to dehydration from tank washing shower (2) operation S24, since dehydration can be started with the inner tank 8 rotated, extension of the operation time by the tank washing shower operation can be shortened. . The tank washing shower operations S22 and S24 may be performed between or before and after each rinsing process, but are desirably performed before the final dehydration in which the water in the outer tank 9 is as clean as possible. If the tank washing shower (2) operation S24 is performed after the final dehydration, water may remain in the water reservoir 30, which may cause moisture and scale.

また、本実施例の洗濯機は、給水ボックス１６に槽洗浄給水室１７と仕上剤収容室１８が設けられる。槽洗浄給水室１７は、槽洗浄給水室１７を構成する壁の中で最も高さの低い仕切り板Ａが設けられ、槽洗浄給水室１７から溢れた水は仕切り板Ａを乗り越えて仕上剤収容室１８に流入する。これによって、槽洗浄給水室１７に取り付けられた仕上剤／槽洗浄給水電磁弁の制御のみで、槽洗浄給水室１７と仕上剤収容室１８に給水することができる。制御装置１００は、槽洗浄給水室１７のみに給水する場合、仕上剤／槽洗浄給水電磁弁を所定のインターバルで開閉させることで、槽洗浄給水室１７から水が溢れないように給水する。また、制御装置１００は、仕上剤収容室１８に給水する場合、仕上剤／槽洗浄給水電磁弁を開弁し続けると、槽洗浄給水室１７および仕上剤収容室１８に給水できる。   In the washing machine of this embodiment, the water supply box 16 is provided with a tank cleaning water supply chamber 17 and a finish agent storage chamber 18. The tank cleaning water supply chamber 17 is provided with the partition plate A having the lowest height among the walls constituting the tank cleaning water supply chamber 17, and the water overflowing from the tank cleaning water supply chamber 17 gets over the partition plate A and stores the finishing agent. It flows into the chamber 18. Thus, water can be supplied to the tank cleaning water supply chamber 17 and the finishing agent storage chamber 18 only by controlling the finishing agent / tank cleaning water supply electromagnetic valve attached to the tank cleaning water supply chamber 17. When supplying water only to the tank cleaning water supply chamber 17, the control device 100 opens and closes the finishing agent / tank cleaning water supply electromagnetic valve at predetermined intervals to supply water so as not to overflow from the tank cleaning water supply chamber 17. In addition, when supplying water to the finishing agent storage chamber 18, the control device 100 can supply water to the tank cleaning water supply chamber 17 and the finishing agent storage chamber 18 by continuously opening the finishing agent / tank cleaning water supply electromagnetic valve.

本実施例では、給水ボックス１６の仕上剤収容室１８には仕上剤が収容されるが、これに限定するものではなく漂白剤や他の薬剤としても良い。また、水冷式の乾燥機能が付いた洗濯機では、槽洗浄給水室１７の代わりに冷却水用の給水室として、流出口１７ｂから冷却水を供給するようにしても良い。その場合、外槽内の蒸気が給水ボックス１６を介して機外に排出されてしまう虞があるが、冷却水用の給水経路に逆止弁を設けることで防止できる。   In the present embodiment, the finishing agent is stored in the finishing agent storage chamber 18 of the water supply box 16, but the present invention is not limited to this, and a bleaching agent or other chemicals may be used. Further, in a washing machine having a water-cooling type drying function, cooling water may be supplied from the outlet 17 b as a water supply chamber for cooling water instead of the tank cleaning water supply chamber 17. In that case, the steam in the outer tub may be discharged outside the apparatus through the water supply box 16, but this can be prevented by providing a check valve in the water supply path for cooling water.

また、本実施例では、電磁弁から給水される第１の給水室を槽洗浄用に、第１の給水室から溢れした水が流入する第２の給水室が仕上剤投入用にした場合を示したが、洗濯機が必要とする機能に合わせて、第１の給水室を冷却水用に、第２の給水室を漂白剤投入用にする等、適宜組合せを変更することができる。   Further, in this embodiment, the case where the first water supply chamber supplied from the electromagnetic valve is used for washing the tank, and the second water supply chamber into which the water overflowing from the first water supply chamber flows is used for charging the finishing agent. As shown, the combination can be changed as appropriate according to the function required by the washing machine, such as using the first water supply chamber for cooling water and the second water supply chamber for charging bleach.

図２５および図２６は、別の実施例を示すものである。本実施例も、最終すすぎであるすすぎ２までの制御は実施例１と同様であるが、その後の制御が実施例１と異なっているので、この部分について具体的に説明する。   25 and 26 show another embodiment. In the present embodiment, the control up to the final rinse 2 is the same as that in the first embodiment, but the subsequent control is different from that in the first embodiment.

本実施例では、図２５に示す通り、かくはん工程Ｓ１９が終了すると、排水工程Ｓ２０に移行し、工程制御部１１２が、回転翼８ｄおよび内槽８を停止させて、排水弁１４を開弁し、すすぎ２で使用したすすぎ水を一度全て排水する。   In the present embodiment, as shown in FIG. 25, when the stirring step S19 is completed, the process proceeds to the draining step S20, and the process control unit 112 stops the rotary blade 8d and the inner tank 8 and opens the drain valve 14. Drain all the rinse water used in Rinse 2 once.

その後、槽洗浄シャワー（１）工程Ｓ２１に移行し、排水弁１４を閉弁し、内槽８を回転させながら仕上剤／槽洗浄給水電磁弁１６ｂを開弁して水溜め部３０に給水する。すると、上述した実施例１における槽洗浄シャワー（１）工程と同様に、水溜め部３０から溢れ出した水によって内槽８外周壁に付着した汚れを洗い流す。このとき、内槽８外周壁の洗浄に使用された水は、外槽９の底に蓄えられていく。   Thereafter, the process proceeds to the tank washing shower (1) step S21, the drain valve 14 is closed, and the finishing agent / tank washing water supply electromagnetic valve 16b is opened while the inner tank 8 is rotated to supply water to the water reservoir 30. . Then, the dirt adhering to the outer peripheral wall of the inner tank 8 is washed away by the water overflowing from the water reservoir 30 as in the tank washing shower (1) step in the first embodiment described above. At this time, the water used for cleaning the outer peripheral wall of the inner tub 8 is stored in the bottom of the outer tub 9.

所定時間が経過すると、槽洗浄工程Ｓ２２を行う。ここでは、最終すすぎ後に給水された比較的きれいな水が外槽９の底に溜まった状態で、内槽８と回転翼８ｄを一体的に７０rpm以上３００rpm以下の回転速度で回転させるので、回転翼８ｄの裏側、内槽８の底面および外槽９の底内面に汚れが付着するのを防止できる。   When the predetermined time has elapsed, the tank cleaning step S22 is performed. Here, the inner tank 8 and the rotary blade 8d are integrally rotated at a rotational speed of 70 rpm or more and 300 rpm or less in a state where relatively clean water supplied after the final rinse is collected at the bottom of the outer tank 9, so that the rotary blade It is possible to prevent dirt from adhering to the back side of 8d, the bottom surface of the inner tank 8, and the bottom inner surface of the outer tank 9.

そして、このような残水撹拌中に排水弁１４を開弁して排水工程Ｓ２３に入る。更に、回転翼８ｄが回転している間に排水をほぼ完了することにより、洗浄により落とした汚れが回転翼８ｄの裏側等に再度付着するのを防止できる。   And during such residual water stirring, the drainage valve 14 is opened and it enters into drainage process S23. Furthermore, by substantially completing the drainage while the rotary blade 8d is rotating, it is possible to prevent the dirt removed by the cleaning from adhering to the back side of the rotary blade 8d again.

次に、槽洗浄シャワー（２）工程Ｓ２４に移行し、排水弁１４を開弁した状態で再度、水溜め部３０への給水を開始し、水溜め部３０に水を溜めた状態で内槽８の回転数を加速させる。これにより、上述した実施例１における槽洗浄シャワー（２）工程と同様に、給水されている水だけでなく水溜め部３０に溜められている水量がまとめて外槽９内周壁に勢い良く掛かるため、洗いムラが発生し難く満遍なく外槽９内周壁を洗浄することができる。   Next, the process proceeds to the tank washing shower (2) step S24, the water supply to the water reservoir 30 is started again with the drain valve 14 opened, and the water is stored in the water reservoir 30 in the inner tank. The number of revolutions of 8 is accelerated. Thereby, like the tank washing shower (2) process in Example 1 mentioned above, not only the water currently supplied but the amount of water stored in the water reservoir 30 collectively hangs on the inner peripheral wall of the outer tank 9. Therefore, washing unevenness hardly occurs and the inner peripheral wall of the outer tub 9 can be washed uniformly.

実施例１では、最終すすぎで利用した水を利用して回転翼８ｄの裏側等の洗浄を行うのに対して、本実施例では、最終すすぎで利用した水ではなく、新たに供給する水道水を利用して回転翼８ｄの裏側等の洗浄を行うので、回転翼８ｄの裏側等をより清潔にできる利点がある。   In the first embodiment, the water used in the final rinse is used to clean the back side of the rotary blade 8d. In the present embodiment, the tap water that is newly supplied is used instead of the water used in the final rinse. Is used to clean the back side of the rotor blade 8d and the like.

１ 洗濯機
２ 筐体
２ａ 上面カバー
３ 外蓋
８ 内槽（洗濯兼脱水槽）
８ａ 流体バランサ
８ａ１ 収容部
８ｂ 胴板
８ｃ 貫通孔
８ｄ 回転翼
９ 外槽（水槽）
９ａ 外槽カバー
１０ 駆動装置
１１ コントロール基盤
１２ 給水ユニット
１３ 風呂水ポンプ
１４ 排水弁
１５ 洗濯水排水路
１６ 給水ボックス
１６ａ メイン給水電磁弁
１６ｂ 仕上剤／槽洗浄給水電磁弁
１７ 槽洗浄給水室
１８ 仕上剤収容室
１９ オーバーフロー室
２０ 給水口
２１ シャワーカバー
２１ａ 散水口
２１ｂ パッキン
３０ 水溜め部
３０ａ 内周側***部
３０ａ１、３０ｂ３ 突起
３０ｂ 外周側***部
３０ｂ１ 内周面
３０ｂ２ 外周面
３０ｃ 中間***部 DESCRIPTION OF SYMBOLS 1 Washing machine 2 Case 2a Top cover 3 Outer lid 8 Inner tank (washing and dehydration tank)
8a Fluid balancer 8a1 Accommodating portion 8b Body plate 8c Through hole 8d Rotor blade 9 Outer tank (water tank)
9a Outer tank cover 10 Driving device 11 Control base 12 Water supply unit 13 Bath water pump 14 Drain valve 15 Washing water drainage channel 16 Water supply box 16a Main water supply electromagnetic valve 16b Finishing agent / Bath cleaning water supply electromagnetic valve 17 Tank cleaning water supply chamber 18 Finishing agent Accommodating chamber 19 Overflow chamber 20 Water supply port 21 Shower cover 21a Water spray port 21b Packing 30 Water reservoir 30a Inner peripheral bulge 30a1, 30b3 Projection 30b Outer peripheral bulge 30b1 Inner peripheral surface 30b2 Outer peripheral surface 30c Intermediate bulge

Claims (7)

筺体と、この筺体内に支持され内部に水を溜める外槽と、この外槽に内包され洗濯物が収容される内槽と、この内槽の内底面部に配置される回転翼と、この回転翼を回転駆動させる駆動装置と、前記外槽内に給水する給水手段を備え、洗い工程、すすぎ工程および脱水工程を有する洗濯機において、
前記すすぎ工程で利用した水を排水した後、排水弁を閉弁し、前記外槽の底に水を溜めた状態で前記回転翼を回転させ、前記回転翼が回転している間に前記排水弁を開弁することを特徴とする洗濯機。 A housing, an outer tub that is supported in the housing and accumulates water therein, an inner tub that is contained in the outer tub and contains laundry, a rotor blade disposed on the inner bottom surface of the inner tub, and In the washing machine having a driving device for rotating the rotary blade and water supply means for supplying water into the outer tub, and having a washing step, a rinsing step and a dehydrating step,
After draining the water used in the rinsing step, the drain valve is closed, the rotary blade is rotated with water stored in the bottom of the outer tub, and the drainage is performed while the rotary blade is rotating. A washing machine characterized by opening a valve. 請求項１において、
前記内槽が回転している間に、前記回転翼の底部より低い水位まで排水することを特徴とする洗濯機。 In claim 1,
While the inner tub is rotating, the washing machine drains to a lower water level than the bottom of the rotary blade. 請求項１または２において、
前記外槽の底に水を溜めた状態で、前記洗い工程における前記回転翼の回転速度よりも高い回転速度で前記回転翼を回転させることを特徴とする洗濯機。 In claim 1 or 2,
A washing machine characterized in that the rotary blades are rotated at a rotational speed higher than the rotational speed of the rotary blades in the washing step in a state where water is accumulated in the bottom of the outer tub. 請求項１乃至３のいずれかにおいて、
前記回転翼と前記内槽とを一体的に回転させることを特徴とする洗濯機。 In any one of Claims 1 thru | or 3,
The washing machine characterized by rotating the rotor blade and the inner tub integrally. 請求項１において、前記排水弁を閉じた状態で、前記駆動装置を駆動して前記内槽を回転させながら、前記給水手段を用いて前記内槽の上部に給水し、前記内槽または外槽の周壁を流れ落ちた水が前記外槽の底に溜まった後、前記回転翼が回転している間に前記排水弁を開弁することを特徴とする洗濯機。   2. The inner tub or the outer tub according to claim 1, wherein the water supply means is used to supply water to the upper portion of the inner tub while driving the driving device and rotating the inner tub with the drain valve closed. After the water that has flowed down the peripheral wall accumulates at the bottom of the outer tub, the drain valve is opened while the rotary blades are rotating. 請求項１において、前記排水弁を開弁して、前記すすぎ工程で利用した水を排水し、前記外槽の底に溜まった水が所定の水位になったときに、前記排水弁を閉弁することを特徴とする洗濯機。   2. The drain valve according to claim 1, wherein the drain valve is opened to drain the water used in the rinsing step, and the drain valve is closed when the water accumulated in the bottom of the outer tank reaches a predetermined water level. A washing machine characterized by 請求項１において、前記すすぎ工程で利用した水を排水した後、前記排水弁を閉弁し、前記給水手段により前記外槽の底に所定の水位まで給水することを特徴とする洗濯機。   2. The washing machine according to claim 1, wherein after draining water used in the rinsing step, the drain valve is closed and water is supplied to the bottom of the outer tub to a predetermined water level by the water supply means.
JP2012236219A 2012-10-26 2012-10-26 Washing machine Active JP6072506B2 (en)

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