JP5397092B2 - Drum washing machine - Google Patents

Drum washing machine Download PDF

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JP5397092B2
JP5397092B2 JP2009196248A JP2009196248A JP5397092B2 JP 5397092 B2 JP5397092 B2 JP 5397092B2 JP 2009196248 A JP2009196248 A JP 2009196248A JP 2009196248 A JP2009196248 A JP 2009196248A JP 5397092 B2 JP5397092 B2 JP 5397092B2
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drum
injection
water
washing machine
type washing
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JP2011045515A (en
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智之 菊川
潤一 縄間
眞 大山
剛 村尾
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP2009196248A priority Critical patent/JP5397092B2/en
Application filed by Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to PCT/JP2010/005097 priority patent/WO2011024409A1/en
Priority to US13/390,666 priority patent/US20120137740A1/en
Priority to CN201410653272.1A priority patent/CN104313835B/en
Priority to CN201080038123.4A priority patent/CN102482834B/en
Priority to EP10811468.7A priority patent/EP2471992B1/en
Priority to TW099128250A priority patent/TW201111578A/en
Publication of JP2011045515A publication Critical patent/JP2011045515A/en
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Description

本発明は、有底円筒形に形成された回転ドラムを、開口する正面側から底部となる背面側に向けて回転軸方向が水平または水平方向から下向き傾斜となるようにして水槽内に設置し、回転ドラムを回転駆動することにより回転ドラム内に収容した洗濯物を洗濯するドラム式洗濯機に関するものである。   In the present invention, a rotating drum formed in a bottomed cylindrical shape is installed in a water tank so that the direction of the rotation axis is horizontal or inclined downward from the horizontal direction from the front side to the open side to the back side as the bottom. The present invention relates to a drum type washing machine for washing laundry stored in a rotating drum by rotationally driving the rotating drum.

このようなドラム式洗濯機で、水槽内の洗濯水を循環ポンプで循環させる循環機能を有したものが既に知られている(例えば、特許文献1および2参照)。   A drum-type washing machine having such a circulation function that circulates washing water in a water tank with a circulation pump is already known (see, for example, Patent Documents 1 and 2).

特許文献1は、循環手段による回転ドラム内への噴射を、回転ドラム前面側から回転ドラム中心側に、ノズルに少しずつ角度を変えて複数形成されている噴射口より噴射し、高容量の被処理物を効率よく洗浄するものである。   In Patent Document 1, the injection into the rotating drum by the circulation means is performed from a plurality of injection ports formed by changing the angle little by little from the front surface side of the rotating drum to the center side of the rotating drum, and a high-capacity target. The processed product is efficiently cleaned.

特許文献2は、循環ポンプのポンプケーシングは、前記ポンプ羽根車の正逆転に応じて吐出が切り替わる二つの吐出口を有することで、回転ドラムの正逆転に応じて洗い時やすすぎ時の洗濯水の掛ける向きが変わるものである。   According to Patent Document 2, the pump casing of the circulation pump has two discharge ports that switch discharge according to the forward and reverse rotation of the pump impeller, so that the washing water when washing and rinsing according to the forward and reverse rotation of the rotary drum is performed. The direction in which is applied changes.

特開平10−127978号公報JP-A-10-127978 特開2008−073128号公報JP 2008-073128 A

しかし、特許文献1に開示の水循環技術は、ノズルに少しずつ角度を変えて複数形成されている噴射口より棒状のシャワーを噴射するため、各々のシャワーは局所的になり、それをカバーするために角度の異なる複数の噴射口としているが、節水の流れがある昨今のドラム式洗濯機では、少ない水量で循環を行う必要があり、噴射口の数でカバーするには限界がある。   However, since the water circulation technique disclosed in Patent Document 1 sprays a bar-shaped shower from a plurality of nozzles formed by changing the angle little by little to the nozzle, each shower becomes local and covers it. However, in recent drum-type washing machines with water-saving flow, it is necessary to circulate with a small amount of water, and there is a limit to cover with the number of spray ports.

また、特許文献2に開示の水循環技術は、ポンプ羽根車の正逆転に応じて吐出が切り替わる二つの吐出口を有することで、回転ドラムの正逆転に応じて洗い時やすすぎ時の洗濯水の掛ける向きを変え、それぞれの回転ドラムの各回転方向回転時に落下する洗濯物にシャワーを当てて洗濯物の重さを増やし叩き洗いによる洗浄力をあげるものであるが、特に高容量の洗濯物量時には叩き洗いの状態にならず、その効果が得られない。   Further, the water circulation technique disclosed in Patent Document 2 has two discharge ports that switch discharge according to the forward and reverse rotation of the pump impeller, so that the washing water at the time of washing and rinsing according to the forward and reverse rotation of the rotary drum is provided. The direction of hanging is changed, and a shower is applied to the laundry that falls when the rotating direction of each rotating drum rotates, increasing the weight of the laundry and increasing the washing power by tapping, especially when the amount of laundry is high capacity It is not in the state of scouring, and the effect cannot be obtained.

本発明の主たる目的は、水槽内の洗濯水を循環ポンプにより循環させるのに、循環ポンプからの吐出側経路による洗濯水の回転ドラム内の洗濯物への吐出の効率を上げることで洗浄力の高いドラム式洗濯機を提供することにある。   The main object of the present invention is to increase the efficiency of discharging the washing water in the rotating drum to the laundry in the rotating drum by the discharge side path from the circulation pump in order to circulate the washing water in the water tank by the circulation pump. It is to provide a high drum type washing machine.

上記目的を達成するために本発明に係るドラム式洗濯機は、正面側に第1の開口を有し有底円筒形に形成された回転ドラムと、前記第1の開口に対応して第2の開口を有するとともに前記回転ドラムを正面側から底部となる背面側に向けて回転軸方向が水平または水平方向から下向き傾斜となるようにして設置する水槽と、前記回転ドラムを回転制御するモータと、前記水槽内の洗濯水を前記水槽に接続した循環経路を通じ循環ポンプにより前
記回転ドラム内に循環させる水循環系とを備え、前記モータ、循環ポンプ等を駆動して洗浄工程、すすぎ工程の少なくとも1つが行えるドラム式洗濯機において、前記水循環系は、前記回転ドラム内の衣類に循環水を噴射する噴射口を複数有し、各々の噴射口からの循環水のドラムの回転軸に対する噴射角度は、少なくとも二種類以上からなることを特徴としている。
In order to achieve the above object, a drum-type washing machine according to the present invention includes a rotary drum having a first opening on the front side and formed in a bottomed cylindrical shape, and a second corresponding to the first opening. A water tank that is installed such that the rotation axis direction is horizontal or inclined downward from the horizontal direction from the front side toward the back side that is the bottom, and a motor that controls the rotation of the rotation drum. A water circulation system that circulates the washing water in the water tank into the rotary drum by a circulation pump through a circulation path connected to the water tank, and drives the motor, the circulation pump, etc. to at least one of a washing process and a rinsing process. In the drum-type washing machine that can perform the operation, the water circulation system has a plurality of injection ports for injecting the circulating water to the clothes in the rotary drum, and the rotation axis of the circulating water from each of the injection ports Morphism angle is characterized in that it consists of at least two or more kinds.

このような構成では、噴射口を複数有することにより、低容量や高容量の衣類それぞれに最適な噴射角度を設けることが可能になると同時に、洗浄開始時の衣類が洗浄液を含んでいない状態でかさばっている際に、回転ドラムの外周付近に向けて噴射を行い、噴射口近傍の周方向の衣類による噴射口のふさぎを、衣類を早期に濡らし体積を減らすことで抑えるとともに、もう一方の噴射口で回転ドラムの中心軸方向に向かって噴射を行うことで、外周側からの噴射では濡れにくい回転ドラムの中心付近の衣類も早期に濡らし、洗浄液の効果を高めるとともに、中心付近の体積も減ることで回転ドラム内で衣類が早期に動きやすくなり、叩き洗いの効果も向上するとともに、衣類の体積が減ることによりできた隙間からシャワーの衣類全体への噴射が可能となり相乗的に洗浄効果を高めることが可能となる。   In such a configuration, by having a plurality of injection ports, it is possible to provide an optimum injection angle for each of the low-capacity and high-capacity clothing, and at the same time, the clothing at the start of cleaning is bulky without containing the cleaning liquid. When spraying toward the outer periphery of the rotating drum, the spray port is blocked by the clothing in the circumferential direction near the spray port by wetting the garment early and reducing the volume. By spraying in the direction of the center axis of the rotating drum, clothes near the center of the rotating drum, which are difficult to wet by spraying from the outer peripheral side, are also wetted early, increasing the effectiveness of the cleaning liquid and reducing the volume near the center This makes it easier for clothes to move quickly in the rotating drum, improves the effect of tapping, and reduces the volume of clothes from the gap created by the overall volume of the shower. Can be enhanced synergistically cleaning effect enables morphism become.

本発明のドラム式洗濯機によれば、複数の噴射口からの循環水のドラムの回転軸に対する噴射角度を、少なくとも二種類以上とすることにより、低容量や高容量の衣類それぞれに最適な噴射角度を設けることで、衣類を早期に全体的に濡らすことが可能となり、洗浄液の効果と叩き洗いの効果が向上し、洗浄効果を高めることが可能となる。   According to the drum-type washing machine of the present invention, by setting at least two types of injection angles with respect to the rotating shaft of the circulating water drum from the plurality of injection ports, injection optimal for each of low-capacity and high-capacity clothing. By providing the angle, it becomes possible to wet the garment as a whole at an early stage, improving the effect of the cleaning liquid and the effect of tapping, and enhancing the cleaning effect.

本発明の実施の形態1におけるドラム式洗濯機の概略構造を示す断面図Sectional drawing which shows schematic structure of the drum type washing machine in Embodiment 1 of this invention (a)同ドラム式洗濯機に用いた循環ポンプの断面図(b)同ドラム式洗濯機に用いた循環ポンプの側面図(A) Cross-sectional view of the circulation pump used in the drum type washing machine (b) Side view of the circulation pump used in the drum type washing machine (a)同ドラム式洗濯機の水槽の要部斜視図(b)同ドラム式洗濯機の水槽の前面壁を内方より見た平面図(A) Perspective view of the main part of the water tank of the drum type washing machine (b) Plan view of the front wall of the water tank of the drum type washing machine as seen from the inside 同ドラム式洗濯機の水循環経路の導水路近傍の断面図Sectional view of the vicinity of the water conduit in the water circulation path of the drum type washing machine (a)同ドラム式洗濯機の水循環経路の吐出口近傍の断面図(b)同ドラム式洗濯機の水循環経路の他の吐出口近傍の断面図(A) Sectional view near the discharge port of the water circulation path of the drum type washing machine (b) Sectional view near the other discharge port of the water circulation path of the drum type washing machine 同ドラム式洗濯機の洗濯水の噴射の状態を示す正面図Front view showing a state of washing water jet of the drum type washing machine (a)本発明の実施の形態2におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図(b)同ドラム式洗濯機の水循環経路の他の吐出口近傍の断面図(A) Cross-sectional view of the vicinity of the discharge port of the water circulation path of the drum type washing machine in Embodiment 2 of the present invention (b) Cross-sectional view of the vicinity of the other discharge port of the water circulation path of the drum type washing machine 本発明の実施の形態3におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図Sectional drawing of discharge port vicinity of the water circulation path | route of the drum type washing machine in Embodiment 3 of this invention 本発明の実施の形態4におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図Sectional drawing of discharge port vicinity of the water circulation path | route of the drum type washing machine in Embodiment 4 of this invention (a)本発明の実施の形態5におけるドラム式洗濯機の水循環経路の吐出口近傍の拡大断面図(b)同ドラム式洗濯機の水循環経路の他の吐出口近傍の拡大断面図(A) Enlarged sectional view near the discharge port of the water circulation path of the drum type washing machine in Embodiment 5 of the present invention (b) Enlarged sectional view near the other discharge port of the water circulation path of the drum type washing machine 本発明の実施の形態6におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図Sectional drawing of discharge port vicinity of the water circulation path | route of the drum type washing machine in Embodiment 6 of this invention 本発明の実施の形態7におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図Sectional drawing of discharge port vicinity of the water circulation path of the drum type washing machine in Embodiment 7 of this invention

第1の発明は、正面側に第1の開口を有し有底円筒形に形成された回転ドラムと、前記第1の開口に対応して第2の開口を有するとともに前記回転ドラムを正面側から底部となる背面側に向けて回転軸方向が水平または水平方向から下向き傾斜となるようにして設置する水槽と、前記回転ドラムを回転制御するモータと、前記水槽内の洗濯水を前記水槽に接続した循環経路を通じ循環ポンプにより前記回転ドラム内に循環させる水循環系とを備え、前記モータ、循環ポンプ等を駆動して洗浄工程、すすぎ工程の少なくとも1つが行えるドラム式洗濯機において、前記水循環系は、前記回転ドラム内の衣類に循環水を噴射する噴射口を複数有し、各々の噴射口からの循環水のドラムの回転軸に対する噴射角度は、少なくとも二種類以上からなり、前記複数の噴射口からの噴射の拡がり角度が、少なくとも二種類以上からなることを特徴とするドラム式洗濯機とすることにより、低容量や高容量の衣類それぞれに最適な噴射角度を設けることが可能になると同時に、洗浄開始時の衣類が洗浄液を含んでいない状態でかさばっている際に、回転ドラムの外周付近に向けて噴射を行い、噴射口近傍の周方向の衣類による噴射口のふさぎを、衣類を早期に濡らし体積を減らすことで抑えるとともに、もう一方の噴射口で回転ドラムの中心軸方向に向かって噴射を行うことで、外周側からの噴射では濡れにくい回転ドラムの中心付近の衣類も早期に濡らし、洗浄液の効果を高めるとともに、中心付近の体積も減ることで回転ドラム内で衣類が早期に動きやすくなり、叩き洗いの効果も向上するとともに、衣類の体積が減ることによりできた隙間からシャワーの衣類全体への噴射が可能となり相乗的に洗浄効果を高めることが可能となる。また、一方の噴射口で回転ドラムの外周付近に向けて拡げて噴射を行い、洗浄開始時の衣類が洗浄液を含んでいない状態でかさばっている際に噴射口近傍の周方向の衣類による噴射口のふさぎを衣類を早期に濡らし体積を減らすことで回避し、他方の噴射口で回転ドラムの中心軸方向に向かって噴射を行う側は、拡がり角を抑え積極的に濡れにくい回転ドラムの中心付近の衣類をねらうことにより、少ない循環水量で洗浄効果を高めることが可能となり節水をすることが可能となる。
According to a first aspect of the present invention, there is provided a rotating drum having a first opening on the front side and having a bottomed cylindrical shape, a second opening corresponding to the first opening, and the rotating drum on the front side. A water tank installed such that the rotation axis direction is horizontal or inclined downward from the horizontal direction toward the bottom side from the bottom, a motor for controlling rotation of the rotating drum, and washing water in the water tank to the water tank A drum-type washing machine comprising: a water circulation system that circulates in the rotating drum by a circulation pump through a connected circulation path; and wherein the motor, the circulation pump, etc. are driven to perform at least one of a washing step and a rinsing step. has a plurality of injection openings for injecting the circulating water to the clothes of the rotating the drum, the injection angle with respect to the axis of rotation of the drum of the circulating water from each injection port comprises at least two or more Spreading angle of the jet from said plurality of injection ports, by a drum-type washing machine, characterized in that it consists of at least two or more, be provided optimum injection angle to each garment low volume and high capacity At the same time, when the clothing at the start of washing is bulky without containing cleaning liquid, spray toward the outer periphery of the rotating drum, and block the injection port with the circumferential clothing near the injection port. The clothing near the center of the rotating drum is less likely to get wet by spraying from the outer peripheral side by suppressing the volume by wetting the clothing early and reducing the volume, and by spraying toward the central axis direction of the rotating drum at the other injection port In addition to increasing the effectiveness of the cleaning liquid, the volume near the center is reduced, making it easier for clothes to move quickly in the rotating drum and improving the washing effect. Moni, injection from the gap made by the volume of the garment is reduced to the entire garment showers possible and it becomes possible to increase the synergistic cleaning effect. In addition, when one of the spray nozzles spreads toward the outer periphery of the rotating drum and sprays, and the clothes at the start of cleaning are bulky in a state that does not contain cleaning liquid, the spray outlet by the circumferential clothing in the vicinity of the spray nozzle The side that sprays toward the central axis of the rotating drum at the other injection port is near the center of the rotating drum that suppresses the spread angle and is not easily wetted. By aiming at the clothes, it is possible to enhance the cleaning effect with a small amount of circulating water and to save water.

第2の発明は、特に、第1の発明の噴射口を、回転ドラムの開口の中心を通る垂線に対し左右方向に配置することで、回転ドラムが左右夫々の方向に回転時の衣類の偏芯による隙間から奥の衣類に噴射することが可能となり、更に洗浄水を早期に全体に行き渡らすことで洗浄効果を高めることと、衣類の体積が早期に減ることで回転ドラム内で衣類が早期に動きやすくなり、叩き洗いの効果も向上し、衣類の体積が減ることによりできた隙間から衣類全体への噴射が可能となり相乗的に洗浄効果を高めることが可能となる。   In the second invention, in particular, the spray port of the first invention is arranged in the left-right direction with respect to a perpendicular passing through the center of the opening of the rotating drum, so that the clothes are biased when the rotating drum rotates in the left and right directions. It becomes possible to inject clothes into the back from the gap by the lead, and further increase the washing effect by spreading the washing water to the whole at an early stage and reduce the volume of the clothes at an early stage so that the clothes can be quickly brought into the rotating drum. It is easy to move, the effect of tapping is improved, and it is possible to inject into the entire garment from the gap formed by reducing the volume of the garment, thus synergistically enhancing the washing effect.

第3の発明は、特に、第1または第2の発明の複数の噴射口は、回転ドラムの開口の中心を通る垂線に対する各々の噴射口の位置角度は、少なくとも二種類以上にすることで、特に低容量の衣類時等に複数のシャワー同士の衝突を抑えることが可能となり、シャワー同士の衝突のロス無く衣類にシャワーを効率よく当てることで洗浄効果を高めることが可能となる。   In the third aspect of the invention, in particular, the plurality of injection openings of the first or second aspect of the invention are such that the position angle of each injection opening with respect to a perpendicular passing through the center of the opening of the rotating drum is at least two or more. In particular, it is possible to suppress a collision between a plurality of showers at the time of low-capacity clothing or the like, and it is possible to enhance the cleaning effect by efficiently applying the shower to the clothes without a loss of the collision between the showers.

の発明は、特に、第1〜のいずれか1つの発明の噴射口からの噴射を同時に行うことで、回転ドラムの回転方向に依存する衣類の挙動に関係なく噴射の効果を得ることが可能となる。
In the fourth aspect of the invention, in particular, by performing injection from the injection port of any one of the first to third aspects of the invention at the same time, the effect of injection can be obtained regardless of the behavior of clothing depending on the rotation direction of the rotating drum. Is possible.

の発明は、特に、第1〜のいずれか1つの発明の循環経路の循環ポンプの吐出側に経路の切替機構を有し、複数の噴射口からの噴射を切り替えることにより、より少ない循環水量で洗浄効果を高めることが可能となり更に節水できる。
In particular, the fifth invention has a path switching mechanism on the discharge side of the circulation pump of the circulation path of any one of the first to fourth inventions, and the number of injections is reduced by switching injection from a plurality of injection ports. The cleaning effect can be enhanced by the amount of circulating water, and water can be further saved.

の発明は、特に、第1〜のいずれか1つの発明の複数の噴射口は、前記水槽の前端壁裏面と前記回転ドラムの前端壁表面との間の流路から回転ドラム内に循環水を吐出することで、回転ドラム内の洗濯物が引っ掛かるような特別な形状、構造の噴射口なしに吐出可能となり、洗濯物を傷めることなく噴射による高効率の洗浄を行うことが可能となる。 According to a sixth aspect of the invention, in particular, the plurality of injection ports according to any one of the first to fifth aspects are provided in the rotary drum from a flow path between the back surface of the front end wall of the water tank and the front end wall surface of the rotary drum. By discharging the circulating water, it becomes possible to discharge without any special shape and structure injection port that the laundry in the rotating drum gets caught, and it is possible to perform highly efficient cleaning by injection without damaging the laundry Become.

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

(実施の形態1)
図1は、本発明の実施の形態1におけるドラム式洗濯機の概略構造を示す断面図、図2(a)は、同ドラム式洗濯機に用いた循環ポンプの断面図、図2(b)は、同ドラム式洗濯機に用いた循環ポンプの側面図、図3(a)は、同ドラム式洗濯機の水槽の要部斜視図、図3(b)は、同ドラム式洗濯機の水槽の前面壁を内方より見た平面図、図4は、同ドラム式洗濯機の水循環経路の導水路近傍の断面図、図5(a)は、同ドラム式洗濯機の水循環経路の吐出口近傍の断面図、図5(b)は、同ドラム式洗濯機の水循環経路の他の吐出口近傍の断面図、図6は、同ドラム式洗濯機の洗濯水の噴射の状態を示す正面図を示すものである。
(Embodiment 1)
1 is a cross-sectional view showing a schematic structure of a drum type washing machine according to Embodiment 1 of the present invention, FIG. 2 (a) is a cross-sectional view of a circulation pump used in the drum type washing machine, and FIG. 2 (b). Fig. 3A is a side view of a circulation pump used in the drum type washing machine, Fig. 3A is a perspective view of a main part of the water tank of the drum type washing machine, and Fig. 3B is a water tank of the drum type washing machine. FIG. 4 is a cross-sectional view of the water circulation path in the vicinity of the water circulation path of the drum type washing machine, and FIG. 5A is a discharge port of the water circulation path of the drum type washing machine. FIG. 5B is a cross-sectional view of the vicinity of another outlet of the water circulation path of the drum-type washing machine, and FIG. 6 is a front view showing a state of jetting of the washing water of the drum-type washing machine. Is shown.

本実施の形態1のドラム式洗濯機は、モード設定や制御プログラムに従い、図1に示すモータ6、給水系7、排水系8、乾燥系9を自動制御して少なくとも洗浄工程、すすぎ工程、脱水工程、乾燥工程を行う機能を有したいわゆるドラム式洗濯乾燥機を構成している。しかし、乾燥系9は省略することができる。また、上記に併せ、洗浄準備工程時、洗浄工程時、すすぎ工程時など必要に応じ、水循環系16にて水槽3内の洗濯水を循環させて洗剤の早期溶け込みや偏りの防止、洗浄やすすぎの機能向上を図る機能も有している。   The drum type washing machine according to the first embodiment automatically controls the motor 6, the water supply system 7, the drainage system 8, and the drying system 9 shown in FIG. A so-called drum-type washing and drying machine having a function of performing a process and a drying process is configured. However, the drying system 9 can be omitted. In addition to the above, the washing water in the water tank 3 is circulated in the water circulation system 16 as necessary at the time of the cleaning preparation process, the cleaning process, the rinsing process, etc. It also has a function to improve the function.

なお、給水系7は電磁弁の開閉によって実線矢印で示すように適時に給水でき、また給水を利用して洗剤収容部の洗剤を水槽3内に適時に投入できるようになっている。排水系8は排水弁19の開閉によって洗浄工程終了時、すすぎ工程終了時など必要なときに一点鎖線矢印で示すように排水できるようになっている。また、循環系16は水槽3内の洗濯水を循環ポンプ20により吸い込み水槽3内に戻すことを繰り返す。   Note that the water supply system 7 can supply water in a timely manner as indicated by solid arrows by opening and closing the electromagnetic valve, and the water supply can be used to supply the detergent in the detergent container into the water tank 3 in a timely manner. The drainage system 8 can be drained as indicated by a one-dot chain line arrow when necessary, such as at the end of the washing process or at the end of the rinsing process, by opening and closing the drain valve 19. The circulation system 16 repeatedly sucks the washing water in the water tank 3 by the circulation pump 20 and returns it to the water tank 3.

運転コース等のモードや各種機能の選択は、洗濯機本体2の前面上部に設けられる操作パネル21から入力して行い、制御系22がその入力情報を基に操作パネル21上の表示手段で表示して使用者に知らせるとともに、操作パネル21での入力設定手段により運転開始が設定されると、水槽3内の水位を検知する水位検知手段等からのデータを入力して駆動を開始して、排水弁、給水弁などの動作を制御し、洗浄、脱水、乾燥などの運転を行う。   The mode such as the driving course and various functions are selected by inputting from the operation panel 21 provided in the upper front portion of the washing machine body 2, and the control system 22 displays on the display means on the operation panel 21 based on the input information. In addition to informing the user, when the start of operation is set by the input setting means on the operation panel 21, data is input from the water level detecting means for detecting the water level in the water tank 3, and driving is started. Controls the operation of the drain valve, water supply valve, etc., and performs operations such as cleaning, dehydration, and drying.

なお、洗濯機本体2の正面側には本体開口2bが設けられ、水槽3の正面側に設けた第2の開口13および回転ドラム4の正面側に設けた第1の開口54を介して回転ドラム4内に洗濯物を出し入れできるように構成している。本体開口2bには、開閉扉5が設けられ、水槽3の開口13をその口縁に装着したシール材14を介し密閉し、また開くことができるようにしている。   A main body opening 2 b is provided on the front side of the washing machine main body 2, and is rotated through a second opening 13 provided on the front side of the water tank 3 and a first opening 54 provided on the front side of the rotary drum 4. The laundry can be taken in and out of the drum 4. An opening / closing door 5 is provided in the main body opening 2b, so that the opening 13 of the water tank 3 is sealed and opened via a sealing material 14 attached to the rim of the opening.

なお、回転ドラム4の駆動は、回転ドラム4の90度を超え180度未満の急正弧回転、急逆弧回転を交互に繰り返す正逆弧回転駆動モードと、回転ドラム4の回転によって持ち上げられた洗濯物がその自重が勝る高さから落下する挙動を示す回転速度での前記回転ドラム4の連続回転を正逆交互に繰り返す正逆連続回転駆動モードとを備え、洗浄工程または、洗浄工程およびすすぎ工程において、前記正逆弧回転駆動モードと前記正逆連続回転駆動モードとを、交互に実行するようにしている。これにより、回転ドラム4の90度を超え180度未満の急速度での弧回転および急激な制動により洗濯物を最大限90度を超えて180度未満まで持ち上げられるし、洗濯物の持ち上げの最終段階の急激な制動により制動状態が生じて洗濯物をその慣性および自重により回転ドラム4内面から剥がしてその自重によって持ち上げ側とは左右反対の側に落すことが確実に達成できるので、洗濯
水を含んで十分に膨潤し、かつ緩み、滑りやすい状態にある洗濯物に対して特に高い解し作用を与えられるし、機械力を洗濯物に及ぼすことができるので洗浄性能を高めることができる。さらに、弧回転駆動の正方向の急正弧回転と逆方向の急逆弧回転とを交互に繰り返すことで正逆弧回転駆動モードとし、これによって、正逆交互の急弧回転駆動によって洗濯物の持ち上げ位置、落下位置を毎回の弧回転駆動において左右交互に入れ換えられるので、洗濯物が絡むことをより防ぎながら解し作用をさらに高められるとともに、機械力を洗濯物に及ぼす回数を増やすことができるので洗浄性能を高めることができる。また、高い解し作用により、洗浄、すすぎ工程が進行することで生じる洗濯物同士の絡みが抑制できるので、正逆弧回転モードにおける効果的な叩き洗いを持続的に実行して、洗浄効果およびすすぎ効果を高めることができる。
The driving of the rotating drum 4 is lifted by the forward / reverse arc rotation driving mode in which the rotating drum 4 repeats the sudden forward arc rotation and the sudden reverse arc rotation exceeding 90 degrees and less than 180 degrees alternately and the rotation of the rotating drum 4. A forward / reverse continuous rotation drive mode in which continuous rotation of the rotating drum 4 at a rotational speed showing a behavior of falling from a height where the weight of the laundry falls is reversed forward and backward, and a washing step or a washing step; In the rinsing step, the forward / reverse arc rotation drive mode and the forward / reverse continuous rotation drive mode are alternately executed. Accordingly, the laundry is lifted up to more than 90 degrees and less than 180 degrees by the arc rotation and rapid braking of the rotating drum 4 exceeding 90 degrees and less than 180 degrees, and the final lifting of the laundry Since the braking state occurs due to the sudden braking of the stage, the laundry can be reliably peeled off from the inner surface of the rotating drum 4 by its inertia and its own weight and dropped to the side opposite to the lifting side by its own weight. In particular, the laundry is sufficiently swollen and loosened, and can be given a particularly high unraveling action to the laundry in a slippery state, and the mechanical performance can be exerted on the laundry, so that the washing performance can be enhanced. Furthermore, the forward / reverse arc rotation drive mode is established by alternately repeating the forward / reverse rapid arc rotation in the forward direction and the reverse rotation in the reverse direction. The lifting position and falling position can be switched alternately left and right in each arc rotation drive, so that it is possible to further improve the solving action while preventing the laundry from becoming tangled, and to increase the number of times the mechanical force is applied to the laundry As a result, the cleaning performance can be improved. In addition, since the entanglement between the laundry caused by the progress of the washing and rinsing process can be suppressed due to the high unraveling action, effective tapping washing in the forward and reverse arc rotation mode is continuously executed, and the washing effect and The rinsing effect can be enhanced.

また、正逆弧回転駆動モードのみでは、洗濯物の絡み、捩れ、皺より等が軽減される一方で、洗濯物の上下方向の位置が入れ替わりにくく、回転ドラム4底部の洗濯物は動きにくいため、洗いむらが生じやすいが、正逆連続回転駆動モードを併用することによって、洗濯物の上下方向の位置の入れ替わりを実現することができ、すなわち、正逆連続回転駆動モードにおける洗濯物の絡み、捩れ、皺よりを軽減するとともに、正逆弧回転駆動モードにおける洗濯物に対する機械力付与の不均衡を軽減することで、両モードによって洗浄やすすぎ中の洗濯物に異なった2通りの挙動、具体的には正逆弧回転駆動モードによっては洗濯物の絡み、捩れ、皺よりを軽減しつつしっかりした手もみ洗いの挙動を、正逆連続回転駆動モードによっては洗濯物を大きく連続に動かしむらを軽減しながら洗う、均一で強い汚れに対する効果的な洗い挙動を与えられる。   Further, in the forward / reverse arc rotation drive mode alone, the tangling, twisting, wrinkles, etc. of the laundry are reduced, but the vertical position of the laundry is difficult to change, and the laundry at the bottom of the rotating drum 4 is difficult to move. In addition, washing unevenness is likely to occur, but by using the forward / reverse continuous rotation drive mode together, it is possible to realize a change in the position of the laundry in the vertical direction, that is, the entanglement of the laundry in the forward / reverse continuous rotation drive mode, In addition to reducing twisting and wrinkling, and reducing the imbalance in applying mechanical force to the laundry in the forward and reverse arc rotation drive mode, the two different behaviors of washing and rinsing laundry in both modes, Depending on the forward / reverse arc rotation drive mode, the hand-washing behavior can be improved while reducing tangling, twisting, and wrinkling of the laundry. The large wash while reducing unevenness move continuously, given an effective washing behavior for uniform and strong stain.

循環ポンプ20は、台板2aに固定し、水循環経路16の循環ポンプ20からの吐出側経路16bは、水槽3の開口13が位置する洗濯機本体2の前方に向けて延びたものとしている。具体的には、循環ポンプ20は、図2に示すようにインペラ20aを収容した樹脂製のポンプケーシング20bがその開口側で、循環モータ20cのモータケーシング20dの前端にある軸受隔壁20d1に当てがって一体化し、インペラ20aをモータ軸20eに直結したものとしてあり、これを樹脂製の取り付け座35に嵌め付けてある。   The circulation pump 20 is fixed to the base plate 2a, and the discharge side path 16b from the circulation pump 20 of the water circulation path 16 extends toward the front of the washing machine body 2 where the opening 13 of the water tank 3 is located. Specifically, as shown in FIG. 2, in the circulation pump 20, a resin-made pump casing 20b containing an impeller 20a is applied to a bearing partition 20d1 at the opening side of the motor casing 20d of the circulation motor 20c. And the impeller 20a is directly connected to the motor shaft 20e, and this is fitted to a mounting seat 35 made of resin.

水槽3の前面壁3hの下半分の部分には、略Y字状に形成され前方に膨出した膨出部3aが形成され、膨出部3aと外形が略同一形状のカバー55が、内方より、パッキン55aを間に挟んで、ネジの締結などにより取り付けられることで、導水路55bを形成している。   The lower half of the front wall 3h of the water tank 3 is formed with a bulging portion 3a formed in a substantially Y shape and bulging forward, and a cover 55 having substantially the same outer shape as the bulging portion 3a On the other hand, the water guide passage 55b is formed by attaching the packing 55a with the screws 55a between them.

膨出部3aの下端部には、横方向に延びた連結部51の一端が接続され、連結部51の他端は、水循環経路16の吐出側経路16bが接続されている。また、略Y字状に形成されたカバー55のそれぞれの上端部分は、パッキン55aを含めたシール構成の無い切欠き部55cが形成され、それによって、膨出部3aとカバー55とで略Y字状に分岐して形成された導水路55bのそれぞれの上端部分には、切欠き部55cとこれに対応する水槽3の前端壁3hの裏面との間で周方向域に広がった開口を有する吐出口55dが形成されている。   One end of a connecting portion 51 extending in the lateral direction is connected to the lower end portion of the bulging portion 3a, and the discharge side passage 16b of the water circulation passage 16 is connected to the other end of the connecting portion 51. Further, each upper end portion of the cover 55 formed in a substantially Y-shape is formed with a notch portion 55c having no sealing structure including the packing 55a, so that the bulging portion 3a and the cover 55 are approximately Y. Each of the upper ends of the water conduits 55 b formed by branching in a letter shape has an opening extending in the circumferential direction region between the notch 55 c and the back surface of the front end wall 3 h of the water tank 3 corresponding thereto. A discharge port 55d is formed.

循環ポンプ20により加圧された洗濯水は、水循環経路16の吐出側経路16bを介して連結部51より導水路55bに流入し、吐出口55dより水槽3の前端壁3hの裏面とこれに対応する回転ドラム4の前端壁4bの表面との間に洗濯水を噴射し、それらの間で形成する流路52を通じて回転ドラム4内に吐出するようにしてある。吐出口55dは、水槽3の前端壁3hの裏面において図5(a)に示すように回転ドラム4の回転中心方向、具体的には、水槽3の前端壁3hおよび回転ドラム4の前端壁4b間の流路52における環状の噴射口53に向かって開口しているので、吐出口55dから噴射する洗濯水は流路52を回転ドラム4の回転中心側、具体的には噴射口53に向かって径方向に回転ドラ
ム4の内側回転域に効率よく吐出させられ、洗濯物の多少にかかわらず洗濯水を効率よく供与できる。
Washing water pressurized by the circulation pump 20 flows into the water conduit 55b from the connecting part 51 via the discharge side path 16b of the water circulation path 16, and corresponds to the back surface of the front end wall 3h of the water tank 3 from the discharge port 55d. Washing water is sprayed between the rotating drum 4 and the front end wall 4b of the rotating drum 4 and discharged into the rotating drum 4 through a flow path 52 formed therebetween. As shown in FIG. 5A, the discharge port 55 d is formed on the back surface of the front end wall 3 h of the water tank 3, specifically, the rotation center direction of the rotary drum 4, specifically, the front end wall 3 h of the water tank 3 and the front end wall 4 b of the rotary drum 4. Since the opening is directed toward the annular injection port 53 in the channel 52 between them, the washing water sprayed from the discharge port 55d is directed to the rotation center side of the rotary drum 4, specifically to the injection port 53. Thus, the water can be efficiently discharged in the radial direction to the inner rotation area of the rotary drum 4, and the washing water can be efficiently supplied regardless of the amount of the laundry.

特に、水槽3の前端壁3hは吐出口55dに対応する位置から内周近くに向かって洗濯機本体2の後部側に傾斜した傾斜面3h1およびこの傾斜面3h1から内周まで、回転ドラム4の開口54側に向け傾斜した案内面56を有していることにより、流路52に噴射される洗濯水を図5(a)に示すように、傾斜面3h1から案内面56に沿わせて、噴射口53から回転ドラム4の開口54を通じ回転ドラム4の奥側に向け吐出させられるので、洗濯水の洗濯物への供与効率を高められる。   In particular, the front end wall 3h of the water tank 3 has an inclined surface 3h1 inclined toward the rear side of the washing machine body 2 from a position corresponding to the discharge port 55d toward the inner periphery, and the rotating drum 4 from the inclined surface 3h1 to the inner periphery. By having the guide surface 56 inclined toward the opening 54 side, as shown in FIG. 5A, the washing water sprayed to the flow path 52 is made to extend along the guide surface 56 from the inclined surface 3h1. Since it is discharged toward the back side of the rotating drum 4 through the opening 54 of the rotating drum 4 from the injection port 53, the supply efficiency of the washing water to the laundry can be improved.

ここで、図5(a)、(b)に示すように、複数の吐出口55dに対し、それぞれ傾斜角度の異なる案内面56、57を設ける構成としている。例えば、図5(a)に示すように、分岐した導水路55bの正面から見て左側の吐出口55d(図3(b)における右側)に対応する案内面56の傾斜角度をαとし、また、図5(b)に示すように、導水路55bの正面から見て右側の吐出口55d(図3(b)における左側)に対応する案内面57の傾斜角度をβとして、α>βとすることで、図6に示すように、正面から見て左側の噴射口53からの洗濯水(図5(a)に示す矢印a)は、シャワー形状Aのように比較的上方向に噴射し、一方、正面から見て右側の噴射口53からの洗濯水(図5(b)に示す矢印b)は、シャワー形状Bのように、シャワー形状Aよりも下方向に向けて噴射することとなる。すなわち、それぞれの吐出口55dから噴射された洗濯水は、傾斜角度の異なる案内面56、57に沿って流れ、噴射口53から第1の開口54を介して回転ドラム4内に噴射されるため、回転ドラム4の回転軸に対する噴射角度の異なる噴射を実現できる。   Here, as shown in FIGS. 5A and 5B, the guide surfaces 56 and 57 having different inclination angles are provided for the plurality of discharge ports 55d, respectively. For example, as shown in FIG. 5A, the inclination angle of the guide surface 56 corresponding to the left outlet 55d (right side in FIG. 3B) when viewed from the front of the branched water conduit 55b is α, As shown in FIG. 5 (b), when the inclination angle of the guide surface 57 corresponding to the right discharge port 55d (left side in FIG. 3 (b)) when viewed from the front of the water conduit 55b is β, α> β Thus, as shown in FIG. 6, the washing water from the left-side injection port 53 as viewed from the front (arrow a shown in FIG. 5A) is injected relatively upward like the shower shape A. On the other hand, the washing water (arrow b shown in FIG. 5 (b)) from the right injection port 53 as viewed from the front is jetted downward from the shower shape A like the shower shape B. Become. That is, the wash water sprayed from the respective discharge ports 55d flows along the guide surfaces 56 and 57 having different inclination angles, and is sprayed from the spray port 53 into the rotary drum 4 through the first opening 54. Thus, it is possible to realize injection with different injection angles with respect to the rotation axis of the rotary drum 4.

また、傾斜角度は、噴射の拡がりにも影響する。傾斜角度が小さい場合、傾斜面3h1から案内面57に角度が変化する近傍で、傾斜面3h1に沿って流れてきた洗濯水が案内面57で急激に角度が変わるため、案内面57に衝突する状態となる。この状態では、案内面57に沿う流れとともに、周方向への拡がりが発生し、拡がりを有した噴射となる。すなわち、図6に示すように、傾斜角度がαである左側の噴射口53から噴射する洗濯水のシャワー形状Aに対し、傾斜角度がβ(上記のように、α>βの関係を有する)である右側の噴射口53から噴射する洗濯水のシャワー形状Bの方が、拡がりを有した噴射となっている。発明者らの試験結果では、傾斜角が120度付近までは、大きく拡がり拡散した噴射となり、130度以上では、拡がりの小さい膜状の噴射となった。   The tilt angle also affects the spread of the injection. When the angle of inclination is small, the wash water flowing along the inclined surface 3h1 changes abruptly at the guide surface 57 in the vicinity where the angle changes from the inclined surface 3h1 to the guide surface 57, and thus collides with the guide surface 57. It becomes a state. In this state, along with the flow along the guide surface 57, the expansion in the circumferential direction occurs, and the injection has the expansion. That is, as shown in FIG. 6, with respect to the shower shape A of the washing water sprayed from the left jet port 53 whose tilt angle is α, the tilt angle is β (having a relationship of α> β as described above). The shower shape B of the washing water sprayed from the right spray port 53 is a spray having a spread. According to the test results of the inventors, the spray was greatly spread and diffused up to an inclination angle of about 120 degrees, and the film-like jet with a small spread was obtained at 130 degrees or more.

上記の構成により、噴射口53からの洗濯水の回転ドラム4の回転軸に対する噴射角度を異ならせるとともに、異なる拡がりとすることで、低容量や高容量の洗濯物のそれぞれに対応した最適な噴射角度を設けることが可能となる。   With the above configuration, the spray angle from the spray port 53 with respect to the rotation axis of the rotating drum 4 of the washing water is made different, and by making the spread different, the optimum spray corresponding to each of the low-capacity and high-capacity laundry An angle can be provided.

例えば、洗浄開始時の洗濯物が洗浄液を含んでいない状態でかさばっている際に、図6に示す左側の噴射口53近傍が洗濯物によって周方向に塞がれた場合でも、右側の噴射口53から回転ドラム4の第1の開口54付近に向けて大きな拡がりを有する噴射を行い、噴射口53近傍の洗濯物を早期に濡らし体積を減らすことで、洗濯物による左側の噴射口53近傍の塞ぎを解消することができる。   For example, when the laundry at the start of washing is bulky without containing the cleaning liquid, even if the vicinity of the left injection port 53 shown in FIG. 6 is closed in the circumferential direction by the laundry, the right injection port By performing spraying having a large spread from 53 to the vicinity of the first opening 54 of the rotary drum 4, the laundry in the vicinity of the spraying port 53 is wetted early, and the volume is reduced. The blockage can be eliminated.

また、図6に示す左側の噴射口53からは回転ドラム4の中心軸方向に向かって拡がりが小さく回転ドラム4の奥方向に向けた噴射を行うことで、右側の噴射口53からの大きな拡がりを有する噴射では濡れにくい回転ドラム4の中心付近から奥部分の洗濯物も早期に濡らし、洗濯水の効果を高めるとともに、中心付近から奥部分の洗濯物の体積を洗濯水を染み込ませることで減らし、回転ドラム4内で洗濯物が早期に動きやすくなるので、叩き洗いの効果も向上するとともに、洗濯物の体積が減ることによりできた隙間から洗濯物
全体への噴射が可能となり相乗的に洗浄効果を高めることが可能となる。
Further, from the left injection port 53 shown in FIG. 6, the expansion is small toward the center axis direction of the rotating drum 4, and the injection toward the back direction of the rotating drum 4 is performed, so that the large expansion from the right injection port 53 is performed. The wet part of the laundry from the center of the rotating drum 4 that is difficult to get wet by the jet having a wetness is also wetted at an early stage to increase the effect of the washing water, and the volume of the laundry at the back part is reduced by soaking the washing water from the vicinity of the center. Since the laundry easily moves in the rotating drum 4 at an early stage, the effect of tapping is improved, and the laundry can be sprayed from the gap formed by reducing the volume of the laundry to synergistically wash. The effect can be increased.

さらに、早期に衣類の体積が減り隙間ができると、回転ドラム4が左右夫々の方向に回転時の衣類の回転中心は回転ドラム4の回転軸に対し偏芯し隙間ができる。衣類が早期に濡れることでこの状態になった際、回転ドラム4の開口54の中心を通る垂線に対し左右方向に噴射口53を配置することで、回転ドラム4の回転方向に関係なく隙間側から奥の衣類に噴射することが可能となる。   Furthermore, if the volume of the garment decreases early and a gap is formed, the rotation center of the garment when the rotary drum 4 rotates in the left and right directions is eccentric with respect to the rotation axis of the rotary drum 4 to form a gap. When the garment is in this state due to premature wetting, the injection port 53 is arranged in the left-right direction with respect to the perpendicular passing through the center of the opening 54 of the rotating drum 4, so that the gap side is provided regardless of the rotating direction of the rotating drum 4. It becomes possible to inject to the clothes behind.

また、図3(b)に示すように、回転ドラム4の開口54の中心を通る垂線に対する各々の吐出口55dの位置角度を少なくとも二種類以上にすることで、図6に示すように、複数の噴射口53は、回転ドラム4の開口54の中心を通る垂線に対する各々の噴射口53の位置角度は、少なくとも二種類以上となり、特に低容量の衣類時等に複数のシャワー同士の衝突を抑えることが可能となり、シャワー同士の衝突のロス無く衣類にシャワーを効率よく当てることで洗浄効果を高めることが可能となる。   Further, as shown in FIG. 3B, by setting at least two types of position angles of the respective discharge ports 55d with respect to a perpendicular passing through the center of the opening 54 of the rotating drum 4, as shown in FIG. The spray ports 53 have at least two types of position angles of the spray ports 53 with respect to the vertical line passing through the center of the opening 54 of the rotary drum 4, and suppress the collision of a plurality of showers particularly when clothes with low capacity are used. It is possible to increase the cleaning effect by efficiently applying the shower to the clothes without loss of collision between the showers.

発明者らの試験結果では、図6に示す右側の噴射口53から回転ドラム4の第1の開口54付近に向けて大きな拡がりを有する噴射を行う噴射口53の位置角度を、回転ドラム4の開口54の中心を通る垂線に対する角度を35〜45度、左側の噴射口53からの回転ドラム4の中心軸方向に向かって拡がりが小さく回転ドラム4の奥方向に向けた噴射を行う噴射口53の位置角度を、回転ドラム4の開口54の中心を通る垂線に対する角度を50〜60度にすることで、シャワー同士の衝突のロス無く衣類にシャワーを効率よく当てることで洗浄効果を高めることができた。   According to the test results of the inventors, the position angle of the injection port 53 that performs injection having a large spread from the right injection port 53 shown in FIG. 6 toward the vicinity of the first opening 54 of the rotary drum 4 The angle with respect to a perpendicular passing through the center of the opening 54 is 35 to 45 degrees, and the injection port 53 performs injection toward the back direction of the rotating drum 4 with a small expansion from the left injection port 53 toward the central axis of the rotating drum 4. The position angle is set to 50 to 60 degrees with respect to the perpendicular passing through the center of the opening 54 of the rotating drum 4, so that the washing effect can be enhanced by efficiently applying the shower to the clothes without loss of collision between the showers. did it.

以上の効果により、回転ドラム4内の洗濯物にその多少にかかわらず洗浄液を有効に働かせさられ節水の効果も得られるとともに、また吐出口55dが回転ドラム4内の洗濯物と接触しない位置にあるので、洗濯物が引っ掛かって洗い、すすぎ、乾燥などに必要な挙動を乱したり、あるいは洗濯物を傷めたり、破れたりするようなことを防止することができるし、見栄えのよい外観が損なわれない。洗濯水の噴射効果は、正逆連続回転駆動モードで上下が入れ替わる洗濯物の挙動、正逆弧回転駆動モード時の左右が入れ替わる洗濯物の挙動との組合せでより高められる。   Due to the above effects, the washing liquid is effectively applied to the laundry in the rotating drum 4 regardless of the amount thereof, and the effect of saving water can be obtained, and the discharge port 55d is not in contact with the laundry in the rotating drum 4. As a result, it can prevent the laundry from getting caught, washing, rinsing, drying, etc., disturbing the laundry, damaging or tearing the laundry, and deteriorating the appearance. I can't. The washing water injection effect is further enhanced by a combination of the behavior of the laundry that is switched up and down in the forward / reverse continuous rotation drive mode and the behavior of the laundry that is switched between the left and right in the forward / reverse arc rotation drive mode.

なお、本実施の形態1では、吐出口55dは左右の2箇所としたが、3箇所以上としても、同等の効果を有することは言うまでも無い。   In the first embodiment, the discharge ports 55d are provided at two places on the left and right, but it goes without saying that the same effect can be obtained even when there are three or more places.

(実施の形態2)
図7(a)は、本発明の実施の形態2におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図、図7(b)は、同ドラム式洗濯機の水循環経路の他の吐出口近傍の断面図を示すものである。実施の形態1と同一構成については、同一符号を付し、その説明を省略する。
(Embodiment 2)
7A is a cross-sectional view of the vicinity of the discharge port of the water circulation path of the drum type washing machine in Embodiment 2 of the present invention, and FIG. 7B is another discharge port of the water circulation path of the drum type washing machine. The cross-sectional view of the vicinity is shown. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

図7(a)、(b)に示すように、案内面58、59は湾曲形状とし、左右の吐出口55dに対し、それぞれ湾曲半径の異なる案内面58、59としている。例えば、図7(a)に示すように、分岐した導水路55bの正面から見て左側の吐出口55d(図3(b)における右側)に対応する案内面58の湾曲半径をγとし、また、図7(b)に示すように、導水路55bの正面から見て右側の吐出口55d(図3(b)における左側)に対応する案内面59の湾曲半径をδとして、γ>δとすることで、図6に示すように、正面から見て左側の噴射口53からの洗濯水(図7(a)に示す矢印c)は、シャワー形状Aのように比較的上方向に噴射し、一方、正面から見て右側の噴射口53からの洗濯水(図7(b)に示す矢印d)は、シャワー形状Bのように、シャワー形状Aよりも下方向に向けて噴射することとなる。すなわち、それぞれの吐出口55dから噴射された洗濯水は、湾
曲半径の異なる案内面58、59に沿って流れ、噴射口53から第1の開口54を介して回転ドラム4内に噴射されるため、回転ドラム4の回転軸に対する噴射角度の異なる噴射を実現できる。
As shown in FIGS. 7A and 7B, the guide surfaces 58 and 59 are curved, and the guide surfaces 58 and 59 have different curvature radii with respect to the left and right discharge ports 55d, respectively. For example, as shown in FIG. 7A, the curvature radius of the guide surface 58 corresponding to the discharge port 55d on the left side (right side in FIG. 3B) when viewed from the front of the branched water conduit 55b is γ, As shown in FIG. 7B, γ> δ, where δ is the curvature radius of the guide surface 59 corresponding to the right outlet 55d (left side in FIG. 3B) when viewed from the front of the water conduit 55b. Thus, as shown in FIG. 6, the washing water (arrow c shown in FIG. 7A) from the left injection port 53 as viewed from the front is injected relatively upward like the shower shape A. On the other hand, the washing water from the right injection port 53 as viewed from the front (arrow d shown in FIG. 7 (b)) is injected downward from the shower shape A like the shower shape B. Become. That is, the wash water sprayed from the respective discharge ports 55d flows along the guide surfaces 58 and 59 having different curvature radii, and is sprayed from the spray port 53 into the rotary drum 4 through the first opening 54. Thus, it is possible to realize injection with different injection angles with respect to the rotation axis of the rotary drum 4.

また、湾曲半径は、噴射の拡がりにも影響する。湾曲半径が小さい場合、傾斜面3h1から案内面59に変化する近傍で、傾斜面3h1に沿って流れてきた洗濯水が案内面59の湾曲で急激に角度が変わるため、案内面59に衝突する状態となる。この状態では、案内面59に沿う流れとともに、周方向への拡がりが発生し、拡がりを有した噴射となる。すなわち、図6に示すように、湾曲半径がγである左側の噴射口53から噴射する洗濯水のシャワー形状Aに対し、傾斜角度がδ(上記のように、γ>δの関係を有する)である右側の噴射口53から噴射する洗濯水のシャワー形状Bの方が、拡がりを有した噴射となっている。   The radius of curvature also affects the spread of injection. When the radius of curvature is small, the washing water flowing along the inclined surface 3h1 suddenly changes its angle due to the curvature of the guide surface 59 in the vicinity of the change from the inclined surface 3h1 to the guide surface 59, so that it collides with the guide surface 59. It becomes a state. In this state, along with the flow along the guide surface 59, the circumferential expansion occurs, resulting in an injection having an expansion. That is, as shown in FIG. 6, the inclination angle is δ (having a relationship of γ> δ as described above) with respect to the shower shape A of the washing water sprayed from the left jet port 53 whose curvature radius is γ. The shower shape B of the washing water sprayed from the right spray port 53 is a spray having a spread.

すなわち、本実施の形態2においても、上記実施の形態1と同等の作用効果を有することができる。   In other words, the second embodiment can have the same effects as those of the first embodiment.

(実施の形態3)
図8は、本発明の実施の形態3におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図を示すものである。実施の形態1と同一構成については、同一符号を付し、その説明を省略する。
(Embodiment 3)
FIG. 8 shows a cross-sectional view of the vicinity of the discharge port of the water circulation path of the drum type washing machine in Embodiment 3 of the present invention. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

図8に示すように、傾斜面3h1と傾斜角度の異なる案内面61とを湾曲面60で接続するように構成している。これにより、吐出口55dから吐出した洗濯水は、傾斜面3h1から湾曲面60を介して傾斜角度の異なる案内面61へスムーズに流れるため、噴射口53からの噴射が、より安定した噴射となることを実現することができる。   As shown in FIG. 8, the inclined surface 3 h 1 and the guide surface 61 having different inclination angles are connected by a curved surface 60. Thereby, since the wash water discharged from the discharge port 55d smoothly flows from the inclined surface 3h1 to the guide surface 61 having a different inclination angle through the curved surface 60, the injection from the injection port 53 becomes a more stable injection. Can be realized.

また、噴射の回転ドラム4の回転軸に対する噴射角度は案内面61の傾斜角度で決め、湾曲面60の湾曲半径で噴射の拡がり角度が決めることが個別にできるようになり、噴射の拡がり角度を広げながら噴射角度を立てたり、噴射の拡がり角度を抑えながら噴射角度を寝かすことが可能となり、湾曲面60と案内面61の形状を二種類以上にすることで、それぞれの噴射口からの洗濯水の噴射の回転ドラムの回転軸に対する噴射角度や、噴射の拡がり角度が異なる噴射が実現可能となる。   Further, the injection angle of the injection with respect to the rotation axis of the rotary drum 4 is determined by the inclination angle of the guide surface 61, and the injection expansion angle can be determined individually by the bending radius of the curved surface 60, and the injection expansion angle can be determined. It is possible to raise the injection angle while expanding, or to lay down the injection angle while suppressing the expansion angle of the injection. By making the curved surface 60 and the guide surface 61 into two or more shapes, the washing water from each injection port Thus, it is possible to realize injections with different injection angles with respect to the rotation axis of the rotary drum and different injection spread angles.

(実施の形態4)
図9は、本発明の実施の形態4におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図を示すものである。実施の形態1と同一構成については、同一符号を付し、その説明を省略する。
(Embodiment 4)
FIG. 9 shows a cross-sectional view of the vicinity of the discharge port of the water circulation path of the drum type washing machine in the fourth embodiment of the present invention. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

図9に示すように、本実施の形態4では、案内面を複数の傾斜角度を持つ面で構成している。   As shown in FIG. 9, in the fourth embodiment, the guide surface is configured by surfaces having a plurality of inclination angles.

図9において、傾斜面3h1から湾曲面60を介して案内面62に変化する近傍では傾斜角εを小さくとり、傾斜面3h1に沿って流れてきた洗濯水を案内面62で急激に角度を変え、案内面62に衝突させ洗濯水の流れを拡げ、傾斜角εに比べ大きい傾斜角ζの案内面63で回転ドラム4の回転軸に対する噴射角度が大きい噴射を実現する。傾斜角εと傾斜角ζの差が大きく、洗濯水の流れが案内面63に対し剥離が生じ噴射が不安定な場合は、さらに中間の傾斜角を有した面を間に追加してもよい。これらの形状は、案内面62、63近傍の偏肉を抑えることもできる。回転ドラム4の回転軸に対する噴射角度が大きく且つ拡がりを持った噴射を実現する際などに、案内面を複数の傾斜角度を持つ面で構成してもよい。   In FIG. 9, the inclination angle ε is reduced in the vicinity of the change from the inclined surface 3 h 1 to the guide surface 62 through the curved surface 60, and the angle of washing water flowing along the inclined surface 3 h 1 is changed abruptly at the guide surface 62. Then, the flow of the washing water is made to collide with the guide surface 62, and injection with a large injection angle with respect to the rotation axis of the rotary drum 4 is realized by the guide surface 63 having an inclination angle ζ larger than the inclination angle ε. When the difference between the inclination angle ε and the inclination angle ζ is large and the flow of the washing water is separated from the guide surface 63 and the injection is unstable, a surface having an intermediate inclination angle may be added between them. . These shapes can also suppress uneven thickness in the vicinity of the guide surfaces 62 and 63. The guide surface may be constituted by a surface having a plurality of inclination angles when the injection angle with respect to the rotation axis of the rotating drum 4 is large and the injection is widened.

(実施の形態5)
図10(a)は、本発明の実施の形態5におけるドラム式洗濯機の水循環経路の吐出口近傍の拡大断面図、図10(b)は、同ドラム式洗濯機の水循環経路の他の吐出口近傍の拡大断面図を示すものである。実施の形態1と同一構成については、同一符号を付し、その説明を省略する。
(Embodiment 5)
FIG. 10 (a) is an enlarged cross-sectional view of the vicinity of the discharge port of the water circulation path of the drum type washing machine in Embodiment 5 of the present invention, and FIG. 10 (b) is another discharge of the water circulation path of the drum type washing machine. The expanded sectional view of the exit vicinity is shown. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

図10(a)に示すように、洗濯水の回転ドラム4の回転軸に対する噴射角度は、開口54近傍の案内面56の、延長線上あるいは接線方向で決まることから、前端壁3hの裏面の端部は所定角の面取り形状65にすることで噴射角度を変えてもよく、また面取り形状65により洗濯物を傷めたり、破れたりするようなことを防止する効果も得られる。同様に図9(b)に示すように面取り形状65を丸み形状66としてもよい。   As shown in FIG. 10 (a), the spray angle with respect to the rotation axis of the rotating drum 4 of the washing water is determined by the extension line or the tangential direction of the guide surface 56 in the vicinity of the opening 54. The portion may have a chamfered shape 65 with a predetermined angle to change the spray angle, and the chamfered shape 65 can also prevent the laundry from being damaged or torn. Similarly, the chamfered shape 65 may be a rounded shape 66 as shown in FIG.

(実施の形態6)
図11は、本発明の実施の形態6におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図を示すものである。実施の形態1と同一構成については、同一符号を付し、その説明を省略する。
(Embodiment 6)
FIG. 11 shows a cross-sectional view of the vicinity of the discharge port of the water circulation path of the drum type washing machine in the sixth embodiment of the present invention. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

図11に示すように、噴射の拡がり、噴射角度、噴射の安定性、洗濯物の傷み、破れ、偏肉を考慮した、複数の傾斜角を持つ傾斜面64、64aや湾曲面60、60a、60b、60c、端部などを徐変し構成としている。   As shown in FIG. 11, the inclined surfaces 64 and 64a and the curved surfaces 60 and 60a having a plurality of inclination angles in consideration of the spread of the injection, the injection angle, the stability of the injection, the damage, tearing, and uneven thickness of the laundry. 60b, 60c, end portions and the like are gradually changed.

(実施の形態7)
図12は、本発明の実施の形態7におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図を示すものである。実施の形態1と同一構成については、同一符号を付し、その説明を省略する。
(Embodiment 7)
FIG. 12 shows a cross-sectional view of the vicinity of the discharge port of the water circulation path of the drum type washing machine in the seventh embodiment of the present invention. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

図12に示すように、本実施の形態7は、上記実施の形態1のように、吐出口55dから流路52を回転ドラム4の回転中心側、具体的には噴射口53に向かって径方向に回転ドラム4の内側回転域に噴射し間接的に回転ドラム4内の衣類に噴射する構成ではなく、洗濯物が引っ掛かって洗浄やすすぎ、乾燥などに必要な挙動を乱したり、あるいは洗濯物を傷めたり、破れたりするようなことのない構成を配慮した上で、吐出口55dを開口13近傍の、水槽3やシール14に設けている。この吐出口55dから直接回転ドラム4内の衣類に噴射するように、吐出口55dと噴射口53を同一とした構成で、吐出口55dの回転ドラム4の回転軸に対する噴射角度の異なる構成や、吐出口55dの周方向の開口幅を変えることで噴射の広がりを変える構成としている。   As shown in FIG. 12, in the seventh embodiment, as in the first embodiment, the diameter of the flow path 52 from the discharge port 55d toward the rotation center side of the rotating drum 4, specifically toward the injection port 53, is reduced. It is not configured to inject into the inner rotation area of the rotating drum 4 in the direction and indirectly to the clothes in the rotating drum 4, but the laundry is caught and washed too easily, disturbing the behavior necessary for drying, etc. The discharge port 55d is provided in the water tank 3 and the seal 14 in the vicinity of the opening 13 in consideration of a configuration that does not damage or tear the object. A configuration in which the ejection port 55d and the ejection port 53 are the same so that the ejection port 55d directly injects the clothes in the rotary drum 4, and a configuration in which the ejection angle of the ejection port 55d with respect to the rotation axis of the rotary drum 4 is different, By changing the opening width in the circumferential direction of the discharge port 55d, the spread of the injection is changed.

本発明にかかるドラム式洗濯機は、低容量や高容量の洗濯物それぞれに最適な噴射角度や拡がり角度を設けることで、洗浄効果を高めることが可能となるので、有底円筒形に形成された回転ドラムを、開口する正面側から底部となる背面側に向けて回転軸方向が水平または水平方向から下向き傾斜となるようにして水槽内に設置し、回転ドラムを回転駆動することにより回転ドラム内に収容した洗濯物を洗濯するドラム式洗濯機等として有用である。   The drum type washing machine according to the present invention is formed in a bottomed cylindrical shape because it is possible to enhance the cleaning effect by providing an optimum spray angle and spread angle for each of the low-capacity and high-capacity laundry. The rotating drum is installed in the water tank so that the direction of the rotation axis is horizontal or inclined downward from the horizontal direction from the opening front side to the bottom side, and the rotating drum is driven to rotate. It is useful as a drum-type washing machine for washing laundry contained therein.

4 回転ドラム
53 噴射口
56 案内面
57 案内面
4 Rotating drum 53 Injection port 56 Guide surface 57 Guide surface

Claims (6)

正面側に第1の開口を有し有底円筒形に形成された回転ドラムと、前記第1の開口に対応して第2の開口を有するとともに前記回転ドラムを正面側から底部となる背面側に向けて回転軸方向が水平または水平方向から下向き傾斜となるようにして設置する水槽と、前記回転ドラムを回転制御するモータと、前記水槽内の洗濯水を前記水槽に接続した循環経路を通じ循環ポンプにより前記回転ドラム内に循環させる水循環系とを備え、前記モータ、循環ポンプ等を駆動して洗浄工程、すすぎ工程の少なくとも1つが行えるドラム式洗濯機において、前記水循環系は、前記回転ドラム内の衣類に循環水を噴射する噴射口を複数有し、各々の噴射口からの循環水のドラムの回転軸に対する噴射角度は、少なくとも二種類以上からなり、前記複数の噴射口からの噴射の拡がり角度が、少なくとも二種類以上からなることを特徴とするドラム式洗濯機。 A rotating drum having a first opening on the front side and having a bottomed cylindrical shape, and a rear surface side having a second opening corresponding to the first opening and the rotating drum from the front side to the bottom. A water tank installed so that the rotation axis direction is horizontal or inclined downward from the horizontal direction, a motor for controlling the rotation of the rotary drum, and the wash water in the water tank circulate through a circulation path connected to the water tank A drum-type washing machine having a water circulation system that circulates in the rotating drum by a pump, and that can perform at least one of a washing process and a rinsing process by driving the motor, the circulation pump, and the like. has a plurality of injection ports to the garment injects circulation water, the injection angle with respect to the axis of rotation of the drum of the circulating water from each injection port comprises at least two or more, the plurality of injection Spreading angle of the jet from the mouth, the drum type washing machine, characterized in that it consists of at least two or more kinds. 記複数の噴射口は、回転ドラムの開口の中心を通る垂線に対し左右方向に配置された、請求項1に記載のドラム式洗濯機。 The drum-type washing machine according to claim 1, wherein the plurality of injection ports are arranged in a left-right direction with respect to a vertical line passing through a center of the opening of the rotary drum. 前記複数の噴射口は、回転ドラムの開口の中心を通る垂線に対する各々の噴射口の位置角度は、少なくとも二種類以上からなることを特徴とする請求項1または2に記載のドラム式洗濯機。 The drum-type washing machine according to claim 1 or 2, wherein the plurality of spray ports have at least two types of position angles of the spray ports with respect to a perpendicular passing through the center of the opening of the rotating drum. 前記複数の噴射口からの噴射を同時に行う請求項1〜3のいずれか1項に記載のドラム式洗濯機。 The drum type washing machine according to any one of claims 1 to 3, wherein the spraying from the plurality of spraying ports is performed simultaneously . 前記循環経路の循環ポンプの吐出側に経路の切替機構を有し、複数の噴射口からの噴射を切り替えて行う請求項1〜4のいずれか1項に記載のドラム式洗濯機。 The drum type washing machine according to any one of claims 1 to 4, further comprising a path switching mechanism on a discharge side of a circulation pump of the circulation path, wherein the injection from a plurality of injection ports is switched . 前記複数の噴射口は、前記水槽の前端壁裏面と前記回転ドラムの前端壁表面との間の流路から回転ドラム内に循環水を吐出するようにした、請求項1〜5のいずれか1項に記載のドラム式洗濯機。
The plurality of injection ports discharge the circulating water into the rotating drum from a flow path between the front end wall back surface of the water tank and the front end wall surface of the rotating drum. The drum-type washing machine according to Item .
JP2009196248A 2009-08-27 2009-08-27 Drum washing machine Active JP5397092B2 (en)

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Application Number Priority Date Filing Date Title
JP2009196248A JP5397092B2 (en) 2009-08-27 2009-08-27 Drum washing machine
US13/390,666 US20120137740A1 (en) 2009-08-27 2010-08-18 Drum type washing machine
CN201410653272.1A CN104313835B (en) 2009-08-27 2010-08-18 Tumbling-box washing machine
CN201080038123.4A CN102482834B (en) 2009-08-27 2010-08-18 Drum type washing machine
PCT/JP2010/005097 WO2011024409A1 (en) 2009-08-27 2010-08-18 Drum type washing machine
EP10811468.7A EP2471992B1 (en) 2009-08-27 2010-08-18 Drum type washing machine
TW099128250A TW201111578A (en) 2009-08-27 2010-08-24 Drum type washing machine

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JPH09299684A (en) * 1996-05-16 1997-11-25 Matsushita Electric Ind Co Ltd Washing machine
JP3436644B2 (en) * 1996-10-30 2003-08-11 シャープ株式会社 Drum type washing machine
KR100765277B1 (en) * 2005-01-10 2007-10-09 엘지전자 주식회사 drum type washer
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