JP4466492B2 - Drum washing machine - Google Patents

Drum washing machine Download PDF

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Publication number
JP4466492B2
JP4466492B2 JP2005201507A JP2005201507A JP4466492B2 JP 4466492 B2 JP4466492 B2 JP 4466492B2 JP 2005201507 A JP2005201507 A JP 2005201507A JP 2005201507 A JP2005201507 A JP 2005201507A JP 4466492 B2 JP4466492 B2 JP 4466492B2
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Japan
Prior art keywords
outer tub
drum
water
washing machine
rotating
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Expired - Fee Related
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JP2005201507A
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Japanese (ja)
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JP2007014678A5 (en
JP2007014678A (en
Inventor
謙治 寺井
勝章 住田
光市 久保
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP2005201507A priority Critical patent/JP4466492B2/en
Priority to MYPI20063136A priority patent/MY146893A/en
Priority to SG200604495A priority patent/SG129363A1/en
Priority to CNU2006201294319U priority patent/CN2928911Y/en
Priority to TW095124456A priority patent/TW200706731A/en
Priority to CNB2006101054485A priority patent/CN100562616C/en
Priority to KR1020060064718A priority patent/KR100785555B1/en
Publication of JP2007014678A publication Critical patent/JP2007014678A/en
Publication of JP2007014678A5 publication Critical patent/JP2007014678A5/ja
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Publication of JP4466492B2 publication Critical patent/JP4466492B2/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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • 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
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/06—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about an inclined axis
    • 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
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/264—Tubs provided with reinforcing structures, e.g. ribs, inserts, braces
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations of pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Description

本発明は、水平方向もしくは斜め方向に回転軸を有する回転ドラム内で洗濯、すすぎ、脱水等の各行程を行うドラム式洗濯機に関するものである。   The present invention relates to a drum-type washing machine that performs various processes such as washing, rinsing, and dewatering in a rotating drum having a rotating shaft in a horizontal direction or an oblique direction.

従来におけるこの種のドラム式洗濯機について以下説明する。   A conventional drum type washing machine of this type will be described below.

図１３は、回転ドラムの回転軸が水平方向であるドラム式洗濯機の断面図である。ドラム式洗濯機の筐体１０１内に、サスペンションによって支持された外槽１０２と、外槽１０２内に回転自在に支持された回転ドラム１０３を配設している。回転ドラム１０３は、駆動モータ１０４によって回転駆動される。筐体１０１の正面側に開閉自在に設けた扉体１０５を開くことにより、外槽１０２の開口部１０２ａ及び回転ドラム１０３にある開口部１０３ａを通して洗濯物を回転ドラム１０３内から出し入れすることができるようになっている（例えば、特許文献１参照）。   FIG. 13 is a cross-sectional view of a drum type washing machine in which the rotating shaft of the rotating drum is in the horizontal direction. An outer tub 102 supported by a suspension and a rotating drum 103 rotatably supported in the outer tub 102 are disposed in a casing 101 of the drum type washing machine. The rotary drum 103 is rotationally driven by a drive motor 104. By opening the door body 105 that can be freely opened and closed on the front side of the housing 101, the laundry can be taken in and out of the rotary drum 103 through the opening 102a of the outer tub 102 and the opening 103a in the rotary drum 103. (For example, refer to Patent Document 1).

このようなドラム式洗濯機における洗濯行程について説明する。扉体１０５が開かれて回転ドラム１０３内に洗濯物が投入され、さらに洗剤が投入されて運転が開始されると、まず、給水弁１０６を開き外槽１０２内に所定の水位まで給水する。その後、駆動モータ１０４により回転ドラム１０３を所定回転速度で回転駆動させると、回転ドラム１０３に収容された洗濯物は、回転ドラム１０３の内面に設けられた撹拌突起１０７に引っ掛けられて回転方向に持ち上げられて適当な高さから落下しその衝撃力で洗濯される、いわゆる叩き洗いを行う。   The washing process in such a drum type washing machine will be described. When the door body 105 is opened, laundry is put into the rotating drum 103, and a detergent is further put in to start the operation, first, the water supply valve 106 is opened and water is supplied into the outer tub 102 to a predetermined water level. Thereafter, when the rotary drum 103 is driven to rotate at a predetermined rotational speed by the drive motor 104, the laundry stored in the rotary drum 103 is hooked on the stirring protrusion 107 provided on the inner surface of the rotary drum 103 and lifted in the rotation direction. Then, it is dropped from a suitable height and washed with its impact force, so-called tapping.

この洗濯行程の後、汚れた洗濯水を排水し、新たに供給した水を用いてすすぎ行程を実行し、すすぎ行程が終了すると回転ドラム１０３を高速回転させる脱水行程を行う。   After this washing process, the dirty washing water is drained, and the rinsing process is performed using newly supplied water. When the rinsing process is completed, a dehydration process is performed in which the rotating drum 103 is rotated at a high speed.

このような構成では、洗濯物が十分洗濯水を含まない状態で洗濯行程を行うので、洗浄力の不足や、洗浄ムラ、さらに一定の洗浄力を確保するには洗いに時間がかかるという課題があった。   In such a configuration, since the washing process is performed in a state where the laundry does not contain sufficient washing water, there is a problem that it takes time to wash in order to ensure insufficient washing power, uneven washing, and a certain washing power. there were.

これらの課題を解決するものとして、外槽１０２内に溜まった洗濯水を循環ポンプで吸い上げ、回転ドラム内に戻すことにより洗濯物に洗濯水を十分に給水させて洗浄力を高め
る技術がある（例えば、特許文献２参照）。
特開平９−２１５８９４号公報 特開平９−２１５８９３号公報 In order to solve these problems, there is a technique for increasing the washing power by sucking the washing water accumulated in the outer tub 102 with a circulation pump and returning the washing water to the rotating drum to sufficiently supply the washing water to the laundry ( For example, see Patent Document 2).
JP-A-9-215894 JP-A-9-215893

しかしながら、このような従来のドラム式洗濯機では、循環ポンプにより循環することができる水量は循環ポンプの大きさによって異なるため、洗濯物に洗濯水を十分に給水させるには大きな循環ポンプが必要となるが、洗濯機本体をコンパクト化するには循環ポンプも小さくせざるを得ず、そのため十分な循環流量を得ることができないという問題があった。また、循環ポンプという新たな構成が必要となってしまうため複雑な構成となり、製造コストがかかるものであった。   However, in such a conventional drum-type washing machine, the amount of water that can be circulated by the circulation pump varies depending on the size of the circulation pump, and thus a large circulation pump is required to supply the laundry with sufficient washing water. However, in order to make the washing machine main body compact, the circulation pump has to be made small, so that there is a problem that a sufficient circulation flow rate cannot be obtained. Further, since a new configuration called a circulation pump is required, the configuration becomes complicated and the manufacturing cost is high.

本発明は、上記従来の課題を解決するもので、循環ポンプ等を用いることなく外槽内の洗濯水を回転ドラム内に戻すことにより、洗浄力を向上させ、洗浄ムラを減少させることができるとともに製造コストを低く抑えるドラム式洗濯機を提供することを目的とする。   The present invention solves the above-described conventional problems, and by returning the washing water in the outer tub to the rotating drum without using a circulation pump or the like, the cleaning power can be improved and the cleaning unevenness can be reduced. At the same time, it is an object to provide a drum type washing machine that keeps the manufacturing cost low.

上記目的を達成するために、本発明のドラム式洗濯機は、筐体と、前記筐体に内包され衣類出入用の第１開口部を有する有底円筒状の外槽と、前記外槽に回転自在に内包され前記第１開口部に対応して開口する第２開口部と前記筐体の正面側から背面側に向かって下向きに傾斜した回転軸とを有する有底円筒状の回転ドラムとを備え、前記回転ドラムの回転に伴って前記外槽内を回転する洗濯水が入り込む取水口を外槽底部内面と外槽胴部内面との境界近傍に設けるとともに、前記取水口と一端が連通する循環水路と、前記循環水路の他端と連通し前記回転ドラム内に洗濯水を吐出する吐出口とを前記外槽に設け、前記回転ドラムを回転させることで前記取水口から取り込んだ洗濯水を前記吐出口より前記回転ドラムに戻すことを特徴とするものである。 In order to achieve the above object, a drum-type washing machine of the present invention includes a housing, a cylindrical outer tub having a first opening that is included in the housing and has a first opening for entering and exiting clothes, and the outer tub. A bottomed cylindrical rotating drum having a second opening that is rotatably included and opens corresponding to the first opening , and a rotating shaft that is inclined downward from the front side to the back side of the housing; the provided, is provided on the vicinity of the boundary between the pre-Symbol rotary drum rotating outer tub bottom inner surface and the outer tub barrel inner surface the intake of washing water rotating enters the outer vessel with the of the intake and one end Washing water taken in from the water intake port by providing a circulating water channel communicating with the other end of the circulating water channel and a discharge port for discharging washing water into the rotating drum in the outer tub, and rotating the rotating drum characterized in that the water returning to the rotary drum from the discharge port Than is.

回転ドラムが背面側に向かって下向きに傾斜しているため、回転ドラムの回転に伴って外槽の底部と胴部の境界近傍に洗濯水が集まって回転し、取水口を外槽底部内面と外槽胴部内面の境界近傍に設けることにより回転している洗濯水を外槽に設けた取水口に効率よく取り込むことが可能となり、回転ドラムの回転に伴って回転する外槽内の洗濯水を外槽に設けた取水口に取り込み、その取水口から取り込んだ洗濯水を吐出口から回転ドラムに吐出することにより、洗濯水を洗濯物にふりかけて循環させる。これにより洗濯水が洗濯物に含まれやすくなるため、洗浄力が向上し、洗浄ムラを減少させることができる。 Since the rotating drum is inclined downward toward the back side, the washing water gathers and rotates in the vicinity of the boundary between the bottom of the outer tub and the trunk as the rotating drum rotates, and the intake port is connected to the inner surface of the outer tub bottom. By providing it in the vicinity of the boundary of the inner surface of the outer tub body, the rotating wash water can be efficiently taken into the water intake provided in the outer tub, and the wash water in the outer tub that rotates as the rotating drum rotates. Is taken into a water intake provided in the outer tub, and the wash water taken from the water intake is discharged from the discharge port to the rotating drum, so that the wash water is sprinkled on the laundry and circulated. As a result, since the washing water is easily contained in the laundry, the cleaning power is improved and the cleaning unevenness can be reduced.

本発明のドラム式洗濯機は、循環ポンプ等を用いることなく洗濯水を外槽に設けた取水口に効率よく取り込むことが可能となり、外槽内の洗濯水を回転ドラム内に戻すことにより、洗浄力を向上させ、洗浄ムラを減少させることができるとともに製造コストを低く抑えることができる。 The drum type washing machine of the present invention can efficiently take in the washing water into the water intake provided in the outer tub without using a circulation pump or the like, and by returning the washing water in the outer tub into the rotating drum, The cleaning power can be improved, cleaning unevenness can be reduced, and the manufacturing cost can be kept low.

第１の発明は、筐体と、前記筐体に内包され衣類出入用の第１開口部を有する有底円筒状の外槽と、前記外槽に回転自在に内包され前記第１開口部に対応して開口する第２開口部と前記筐体の正面側から背面側に向かって下向きに傾斜した回転軸とを有する有底円筒状の回転ドラムとを備え、前記回転ドラムの回転に伴って前記外槽内を回転する洗濯水が入り込む取水口を外槽底部内面と外槽胴部内面との境界近傍に設けるとともに、前記取水口と一端が連通する循環水路と、前記循環水路の他端と連通し前記回転ドラム内に洗濯水を吐出する吐出口とを前記外槽に設け、前記回転ドラムを回転させることで前記取水口か
ら取り込んだ洗濯水を前記吐出口より前記回転ドラムに戻すことを特徴とするものである。 According to a first aspect of the present invention, there is provided a housing, a bottomed cylindrical outer tub that is included in the housing and has a first opening for entering and exiting clothes, and a rotating inner shell that is rotatably included in the outer tub. corresponding to a bottomed cylindrical rotary drum having a rotary axis inclined downwardly toward the rear side from the front side of the second opening and the housing opening, with the rotation of the front Symbol rotary drum A water intake through which the washing water that rotates in the outer tub enters is provided near the boundary between the inner surface of the outer tub bottom and the inner surface of the outer tub body, and a circulation water channel that communicates with the water intake and one end, A discharge port that communicates with the end and discharges washing water into the rotary drum is provided in the outer tub, and the rotary drum is rotated to rotate the intake port.
The washing water taken in is returned to the rotating drum from the discharge port .

この構成によると、回転ドラムの回転に伴って外槽内の洗濯水を回転させ、回転している洗濯水を外槽に設けた取水口に取り込み、取水口から取り込んだ洗濯水を吐出口から回転ドラムに戻すことにより、洗濯水が何度も洗濯物にふりかかるため洗濯物に含まれやすくなり、洗浄力を向上させることができるともに洗浄ムラをなくすことができる。また、回転ドラムが傾斜しているため外槽の底部と胴部の境界近傍に洗濯水が集まって回転するため、取水口を外槽底部内面と外槽胴部内面の境界近傍に設けることにより洗濯水を効率よく取り込むことが可能となり循環流量を増やすことができる。 According to this configuration, the washing water in the outer tub is rotated in accordance with the rotation of the rotating drum, the rotating washing water is taken into the intake port provided in the outer tub, and the washing water taken in from the intake port is discharged from the discharge port. By returning to the rotating drum, the washing water is splashed on the laundry many times, so that it becomes easy to be included in the laundry, and the cleaning power can be improved and washing unevenness can be eliminated . Also, since the rotary drum is rotating wash water gathered in the vicinity of the boundary between the bottom portion and the body portion of the outer tub for inclined, providing a water intake near the boundary of the outer tub bottom inner surface and the outer tub barrel inner surface This makes it possible to efficiently take in the washing water and increase the circulation flow rate.

第２の発明は、前記請求項１に記載の発明において、吐出口は、第１開口部の外周近傍の内面側であって、回転ドラムの第２開口部を介して前記回転ドラム内に洗濯水が吐出される位置に設けられたことを特徴とするものである。 According to a second aspect of the present invention, in the first aspect of the present invention, the discharge port is on the inner surface side in the vicinity of the outer periphery of the first opening, and is washed in the rotating drum through the second opening of the rotating drum. It is provided at a position where water is discharged.

この構成によると、外槽に溜まった洗濯水を、外槽の開口部の外周近傍の内面側であって、回転ドラムの開口部から回転ドラム内に戻すことができる。   According to this configuration, the washing water collected in the outer tub can be returned to the inner surface of the outer tub near the outer periphery of the outer tub from the opening of the rotating drum into the rotating drum.

第３の発明は、前記請求項１または２に記載の発明において、取水口は、吐出口よりも高い位置に設けられたことを特徴とするものである。 A third invention is characterized in that, in the invention described in claim 1 or 2 , the water intake is provided at a position higher than the discharge port.

この構成によると、取水口と吐出口との高低差、すなわち位置水頭によって吐出口付近の水圧を高くすることができるため、高低差に応じて吐出の勢いを上げることができ、循環流量を増やすことができる。   According to this configuration, the height difference between the intake port and the discharge port, that is, the water pressure in the vicinity of the discharge port can be increased by the position head, so the discharge momentum can be increased according to the height difference, and the circulation flow rate is increased. be able to.

第４の発明は、前記請求項１〜３のいずれかに記載の発明において、取水口は、外槽底部の内面側であって、その上半分側で、かつ前記外槽内を回転する洗濯水の流れの下流側に設けられ、吐出口は、前記外槽の第１開口部の外周近傍の内面側であって、その下半分側に設けられたことを特徴とするものである。 According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the water intake is on the inner surface side of the outer tub bottom, on the upper half side, and in the outer tub. The discharge port is provided on the downstream side of the water flow, and the discharge port is provided on the inner surface side near the outer periphery of the first opening of the outer tub and on the lower half side thereof.

この構成によると、取水口が吐出口より高い位置に設けられ、かつ高低差、すなわち位置水頭も大きくなるので、吐出口付近の水圧を高くすることができるため、吐出口から吐出される洗濯水の勢いを高くすることができ、循環流量を増やすことができる。   According to this configuration, since the intake port is provided at a position higher than the discharge port and the height difference, that is, the position head is increased, the water pressure in the vicinity of the discharge port can be increased. Can be increased and the circulation flow rate can be increased.

第５の発明は、前記請求項１〜４のいずれかに記載の発明において、回転ドラム底部外面側には、外槽底部側へ突出したリブが複数本設けられたことを特徴とするものである。 According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, a plurality of ribs protruding toward the outer tank bottom are provided on the outer surface of the bottom of the rotating drum. is there.

この構成によると、回転ドラムの回転により回転ドラムの底部外面側に設けられたリブが洗濯水を掻きあげるため、外槽内を回転する洗濯水の勢いが増すので、取水口に取り込まれる洗濯水の勢いや量が増し、吐出口から吐出される洗濯水の勢いを強くすることができ、循環流量と増やすことができる。   According to this configuration, since the rib provided on the outer surface of the bottom of the rotating drum scoops up the washing water by the rotation of the rotating drum, the momentum of the washing water rotating in the outer tub increases, so the washing water taken into the intake port Thus, the momentum and amount of the washing water can be increased and the momentum of the washing water discharged from the discharge port can be increased, and the circulation flow rate can be increased.

第６の発明は、前記請求項５記載の発明において、複数本のリブは、回転ドラム底部の外周近傍に略放射状に設けられるとともに、略円弧形状をなす略円弧リブにより前記回転ドラムの外周近傍で連結されるように構成し、取水口は、外槽底部内面と外槽胴部内面の境界近傍の外槽底部内面に設けられたことを特徴とするものである。 According to a sixth aspect of the present invention, in the invention according to the fifth aspect , the plurality of ribs are provided substantially radially near the outer periphery of the bottom of the rotating drum, and the vicinity of the outer periphery of the rotating drum by a substantially arc-shaped rib having a substantially arc shape The water intake is provided on the inner surface of the outer tank bottom near the boundary between the inner surface of the outer tank bottom and the inner surface of the outer tank body.

この構成によると、リブにより掻き揚げられた洗濯水は、遠心力により、外周近傍に設けられた略円弧リブに当たり、それによって外槽胴部の内面側よりも取水口が設けられている外槽底部の内面側へ向かって流れやすくなる。その洗濯水は外槽底部の内面に設けら
れた取水口から取り込まれ、回転ドラム内へ循環される。 According to this configuration, the washing water swept up by the rib hits the substantially circular rib provided near the outer periphery by centrifugal force, and thereby the outer tub provided with the water intake port from the inner surface side of the outer tub trunk. It becomes easy to flow toward the inner surface side of the bottom. The washing water is taken from a water intake provided on the inner surface of the bottom of the outer tub and is circulated into the rotating drum.

第７の発明は、前記請求項５に記載の発明において、複数本のリブは、回転ドラム底部の外周近傍に略放射状に設けられ、取水口は、外槽底部の内面と外槽胴部の内面との境界近傍の前記外槽胴部の内面に設けられたことを特徴とするものである。 In a seventh aspect of the invention according to the fifth aspect , the plurality of ribs are provided substantially radially in the vicinity of the outer periphery of the bottom portion of the rotating drum, and the water intakes are formed on the inner surface of the outer tank bottom portion and the outer tank body portion. It was provided in the inner surface of the said outer tank trunk | drum near the boundary with an inner surface.

この構成によると、リブにより掻き揚げられた洗濯水は、回転の遠心力により外槽胴部側に飛ばされるため外槽胴部内面を流れやすくなる。その洗濯水は外槽胴部の内面に設けられた取水口から取り込まれ、回転ドラム内へ循環される。   According to this configuration, since the washing water swept up by the ribs is blown to the outer tub body by the centrifugal force of rotation, it easily flows on the inner surface of the outer tub body. The washing water is taken from a water intake provided on the inner surface of the outer tub body and is circulated into the rotating drum.

第８の発明は、前記請求項６または請求項７に記載の発明において、複数本のリブは、その外周側に向かうに従って外槽内を回転する洗濯水の流れ方向に向かって所定の角度で傾斜するようにしたことを特徴とするものである。 According to an eighth aspect of the present invention, in the invention according to the sixth aspect or the seventh aspect , the plurality of ribs are formed at a predetermined angle toward the flow direction of the washing water that rotates in the outer tub as it moves toward the outer peripheral side. It is characterized by being inclined.

この構成によると、さらに外槽内の洗濯水を効率よく回転させることができる。   According to this configuration, the washing water in the outer tub can be further efficiently rotated.

第９の発明は、前記請求項６または請求項７に記載の発明において、複数本のリブは、外槽内を回転する洗濯水の流れの方向と反対方向に凸となるように湾曲したことを特徴とするものである。 According to a ninth aspect of the present invention, in the invention according to the sixth aspect or the seventh aspect , the plurality of ribs are curved so as to protrude in the direction opposite to the direction of the washing water rotating in the outer tub. It is characterized by.

この構成によると、一層外槽内の洗濯水を効率よく回転させることができる。   According to this configuration, the washing water in the outer tub can be more efficiently rotated.

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、本発明の第１の実施の形態におけるドラム式洗濯機の断面図を示している。図１において、ドラム式洗濯機の筐体１内には、有底円筒状の外槽６が図示しないサスペンション構造によって筐体１の正面側から背面側に向かって下向きに傾斜した状態で支持されている。外槽６は外槽本体２と外槽カバー３とで構成され、その接続部分で第１のパッキング部材４を介して接続固定されている。外槽６は、その内側に有底円筒形に形成された回転ドラム５を、その回転軸が筐体１の正面側から背面側に向かって下向きに傾斜するように回転自在に支持している。 (Embodiment 1)
FIG. 1 shows a cross-sectional view of a drum-type washing machine according to the first embodiment of the present invention. In FIG. 1, a bottomed cylindrical outer tub 6 is supported in a casing 1 of a drum-type washing machine in a state inclined downward from the front side to the back side of the casing 1 by a suspension structure (not shown). ing. The outer tub 6 is composed of an outer tub main body 2 and an outer tub cover 3, and is connected and fixed via a first packing member 4 at the connection portion. The outer tub 6 rotatably supports a rotating drum 5 formed in a cylindrical shape with a bottom on the inner side so that the rotating shaft inclines downward from the front side of the housing 1 toward the back side. .

筐体１の正面側には、洗濯物を出し入れするための筐体開口部１ａが設けられており、さらにその筐体開口部１ａを開閉自在に覆う扉体８が設けられている。   On the front side of the housing 1, a housing opening 1a for taking in and out the laundry is provided, and a door body 8 that covers the housing opening 1a in an openable and closable manner is provided.

外槽カバー３には、筐体開口部１ａの対応位置に外槽カバー開口部（第１開口部）３ａが設けられており、回転ドラム５には、筐体開口部１ａ及び外槽カバー開口部３ａの対応位置に、回転ドラム開口部５ａ（第２開口部）が設けられている。この筐体開口部１ａ、外槽カバー開口部３ａ及び回転ドラム開口部５ａを介して、筐体１の外から回転ドラム５内への洗濯物の出し入れを行う。   The outer tank cover 3 is provided with an outer tank cover opening (first opening) 3a at a position corresponding to the housing opening 1a, and the rotating drum 5 is provided with the housing opening 1a and the outer tank cover opening. A rotary drum opening 5a (second opening) is provided at a position corresponding to the portion 3a. The laundry is put into and out of the rotating drum 5 from the outside of the casing 1 through the casing opening 1a, the outer tub cover opening 3a, and the rotating drum opening 5a.

回転ドラム５は、回転ドラム開口部５ａが設けられた回転ドラム前面部５ｂ、有底円筒状の胴部を構成する回転ドラム胴部５ｃ及び底部を構成する回転ドラム底部５ｄより構成され、また回転ドラム胴部５ｃの内面には攪拌突起５ｅが複数個設けられており、外槽本体２の外槽本体底部２ｃの外方に取り付けられた駆動モータ７によって回転駆動され、その回転速度や回転方向は可変である。   The rotating drum 5 includes a rotating drum front surface portion 5b provided with a rotating drum opening 5a, a rotating drum body portion 5c constituting a bottomed cylindrical body portion, and a rotating drum bottom portion 5d constituting a bottom portion. A plurality of agitation protrusions 5e are provided on the inner surface of the drum body 5c, and are rotated by a drive motor 7 attached to the outer side of the outer tank body bottom 2c of the outer tank body 2, and the rotation speed and direction of rotation are driven. Is variable.

外槽６には、注水管路９及び排水管路１０が配管接続されており、筐体１内に設けられ
た給水弁１１（図２に示す）が開かれることにより、水道水が洗剤ケース９ａ、注水管路９を通過して外槽６内へ給水され、また、排水管路１０の途中に設けられた排水弁１３が開かれることにより、洗濯水が外槽６外へ排水される。 A water injection line 9 and a drain line 10 are connected to the outer tub 6 by pipes, and tap water is provided in the housing 1 so that tap water is supplied to the detergent case. 9 a, water is supplied into the outer tub 6 through the water injection pipe 9, and the drainage valve 13 provided in the middle of the drainage pipe 10 is opened, so that the washing water is drained outside the outer tub 6. .

さらに、外槽６内の洗濯水の水位を検知する水位検知手段１４（図２に示す）及び洗濯行程から脱水行程までの運転動作の一連行程を制御する制御装置１５（図２に示す）などを設けている。   Further, a water level detecting means 14 (shown in FIG. 2) for detecting the level of the washing water in the outer tub 6 and a control device 15 (shown in FIG. 2) for controlling a series of operation steps from the washing stroke to the dewatering stroke. Is provided.

図２は、本発明の第１の実施の形態における制御装置１５の構成を示すブロック図である。制御装置１５は、制御手段１６、設定手段１７、記憶手段１８及びパワースイッチング手段１９等から構成される。マイクロコンピュータにより構成される制御手段１６は、設定手段１７から入力される運転コースの選択などの設定入力に応じて、記憶手段１８に記憶された制御プログラムを用いてパワースイッチング手段１９に制御指令を出力する。   FIG. 2 is a block diagram showing the configuration of the control device 15 in the first embodiment of the present invention. The control device 15 includes a control unit 16, a setting unit 17, a storage unit 18, a power switching unit 19, and the like. The control means 16 constituted by a microcomputer issues a control command to the power switching means 19 using a control program stored in the storage means 18 in response to a setting input such as selection of an operation course input from the setting means 17. Output.

パワースイッチング手段１９はＳＣＲ等のスイッチング素子を用いて構成されており、制御手段１６からの制御指令に応じて駆動モータ７、給水弁１１、排水弁１３などの動作を制御する。   The power switching means 19 is configured using a switching element such as an SCR, and controls operations of the drive motor 7, the water supply valve 11, the drain valve 13 and the like according to a control command from the control means 16.

図３は、本発明の第１の実施の形態における外槽本体２の斜視図である。外槽本体２は、外槽本体開口部２ａ、外槽本体胴部２ｂおよび外槽本体底部２ｃを有する有底円筒型である。   FIG. 3 is a perspective view of the outer tub main body 2 in the first embodiment of the present invention. The outer tank main body 2 is a bottomed cylindrical type having an outer tank main body opening 2a, an outer tank main body body 2b, and an outer tank main body bottom 2c.

外槽本体底部２ｃと外槽本体胴部２ｂの境界部の近傍であって外槽本体底部２ｃ内面には、略凹状に形成された外槽本体底溝部２ｄを、外槽本体胴部２ｂと略同心円の円弧状に設けている。外槽本体底溝部２ｄには、内面側より外槽本体底溝部２ｄに対応した形状の外槽本体溝蓋２３が、その外周近傍に設けられた第２のパッキング部材２４を介して外周部をねじ２５にてねじ止め固定されており、この外槽本体底溝部２ｄと外槽本体溝蓋２３とにより第１の循環水路２２が形成されている。   An outer tank body bottom groove 2d formed in a substantially concave shape is formed on the inner surface of the outer tank body bottom 2c, in the vicinity of the boundary between the outer tank body bottom 2c and the outer tank body body 2b, and the outer tank body body 2b. It is provided in a substantially concentric circular arc shape. The outer tub main body bottom groove 2d has an outer tub main body groove lid 23 having a shape corresponding to the outer tub main body bottom groove 2d from the inner surface side through the second packing member 24 provided in the vicinity of the outer periphery. The outer tub main body bottom groove 2d and the outer tub main body groove lid 23 form a first circulation water channel 22 which is fixed by screws 25.

第１の循環水路２２の一端である取水口２０は、底面が外槽本体底溝部２ｄの底面から外槽本体底部２ｃの内面まで徐々に変化する案内凹部２１に連通している。また、外槽本体２には、その外槽本体胴部２ｂの外側に、外槽本体開口部２ａから外槽本体底部２ｃまで連通するパイプ状の第２の循環水路２６が一体に形成されており、この第２の循環水路２６の外槽本体底部２ｃ側の端が第１の循環水路２２の他端に連通している。   The water intake 20 which is one end of the first circulating water channel 22 communicates with the guide recess 21 whose bottom surface gradually changes from the bottom surface of the outer tank main body bottom groove 2d to the inner surface of the outer tank main body bottom 2c. The outer tub main body 2 is integrally formed with a pipe-like second circulation water channel 26 communicating from the outer tub main body opening 2a to the outer tub main body bottom 2c outside the outer tub main body 2b. The end of the second circulating water channel 26 on the outer tub main body bottom 2 c side communicates with the other end of the first circulating water channel 22.

図４は、本発明の第１の実施の形態における外槽カバー３の斜視図である。   FIG. 4 is a perspective view of the outer tub cover 3 according to the first embodiment of the present invention.

外槽カバー３は、外槽カバー開口部３ａが設けられた外槽カバー前面部３ｂと、外槽カバー胴部３ｃと、外槽カバー後方開口部３ｄを有する略円筒状に形成されている。   The outer tank cover 3 is formed in a substantially cylindrical shape having an outer tank cover front surface portion 3b provided with an outer tank cover opening 3a, an outer tank cover body portion 3c, and an outer tank cover rear opening 3d.

外槽カバー３には、その外槽カバー胴部３ｃの外側で、第２の循環水路２６に対応する位置に外槽カバー後方開口部３ｄから外槽カバー前面部３ｂまで連通する第３の循環水路２７が一体に形成されている。   The outer tank cover 3 has a third circulation that communicates from the outer tank cover rear opening 3d to the outer tank cover front surface portion 3b at a position corresponding to the second circulation water channel 26 outside the outer tank cover body 3c. The water channel 27 is integrally formed.

外槽カバー前面部３ｂ内面には、略凹状に形成された外槽カバー前面溝部３ｅを、外槽カバー前面部３ｂの外周側から外槽カバー開口部３ａに近づくにつれ、途中で二股に分かれるような略Ｙ字状に設けられている。この外槽カバー前面溝部３ｅには、内面側より外槽カバー前面溝部３ｅの形状に対応した形状の外槽カバー溝蓋２９が、その外周近傍に設けられた第３のパッキング部材３０を介して、外周部をねじ３１にてねじ止め固定されている。この外槽カバー前面溝部３ｅと外槽カバー溝蓋２９とにより、略Ｙ字状の第４の循
環水路２８が形成されている。 On the inner surface of the outer tub cover front surface portion 3b, the outer tub cover front surface groove portion 3e formed in a substantially concave shape is divided into two branches in the middle as approaching the outer tub cover opening portion 3a from the outer peripheral side of the outer tub cover front surface portion 3b. It is provided in a substantially Y shape. An outer tub cover groove cover 29 having a shape corresponding to the shape of the outer tub cover front groove 3e is formed on the outer tub cover front groove 3e via the third packing member 30 provided in the vicinity of the outer periphery thereof. The outer periphery is fixed with screws 31. The outer tub cover front groove 3e and the outer tub cover groove lid 29 form a substantially Y-shaped fourth circulation water channel 28.

第４の循環水路２８の略Ｙ字状の下側端である一端は、第３の循環水路２７の外槽カバー前面部３ｂ側の端と連通している。外槽カバー溝蓋２９には、二股に分かれた先端部分の近傍に、洗濯水を吐出するための循環ノズル３４がそれぞれ設けられている。   One end, which is the substantially Y-shaped lower end of the fourth circulating water channel 28, communicates with the end of the third circulating water channel 27 on the outer tank cover front surface portion 3 b side. The outer tub cover groove cover 29 is provided with circulation nozzles 34 for discharging washing water in the vicinity of the bifurcated tip portion.

この構成により、図４に示すように循環ノズル３４は、外槽カバー開口部３ａの外周近傍で、かつ、外槽カバー前面部３ｂの内面側であって、回転ドラム開口部５ａ内に面するように配設されている。   With this configuration, as shown in FIG. 4, the circulation nozzle 34 is in the vicinity of the outer periphery of the outer tub cover opening 3a and on the inner surface side of the outer tub cover front surface 3b, and faces the rotary drum opening 5a. It is arranged like this.

また、外槽本体２と外槽カバー３が接続固定され外槽６として筐体１に支持された状態において、循環ノズル３４は、外槽カバー前面部３ｂの下半分の部分に位置し、取水口２０より低い位置になるように設けられている。   In addition, in a state where the outer tub body 2 and the outer tub cover 3 are connected and fixed and supported by the housing 1 as the outer tub 6, the circulation nozzle 34 is located in the lower half portion of the outer tub cover front surface portion 3b. It is provided so as to be lower than the mouth 20.

また、外槽本体２と外槽カバー３が接続固定された時において、第２の循環水路２６と第３の循環水路２７は、前述した外槽本体２と外槽カバー３を接続固定する方法と同様にして第１のパッキング部材４を介して接続固定されている。   Further, when the outer tub main body 2 and the outer tub cover 3 are connected and fixed, the second circulating water channel 26 and the third circulating water channel 27 are connected and fixed to the outer tub main body 2 and the outer tub cover 3 described above. In the same manner as above, it is connected and fixed via the first packing member 4.

図５（ａ）は本発明の第１の実施の形態における循環ノズル３４の正面図、図５（ｂ）は同循環ノズル３４の平面図、図５（ｃ）は同循環ノズル３４の側断面図である。循環ノズル３４は、一端が第４の循環水路２８と連通し、他端が回転ドラム５の内面側へ突出した、略円筒状のノズル３４ａと、下半分がノズル３４ａの突出した端の下半分と一体に形成され、上半分が回転ドラム５の内面側へ向かうにつれてノズル３４ａから離れるように傾斜し、その上端の高さがノズル３４ａの上端と略同じ高さになるように形成された略円盤状の調節板３３とで、構成されている。この調節板３３の上半分をノズル３４ａと離すことにより吐出口３２を形成している。また、調節板３３の傾斜角度を調節することにより、第１〜４の循環水路を通ってきた洗濯水の吐出角度を調節することができる。   FIG. 5A is a front view of the circulation nozzle 34 in the first embodiment of the present invention, FIG. 5B is a plan view of the circulation nozzle 34, and FIG. FIG. The circulation nozzle 34 has one end communicating with the fourth circulation water channel 28 and the other end protruding toward the inner surface of the rotary drum 5. The lower half is the lower half of the end protruding from the nozzle 34 a. The upper half is inclined so as to move away from the nozzle 34a toward the inner surface side of the rotating drum 5, and the upper end of the upper half is substantially the same height as the upper end of the nozzle 34a. A disc-shaped adjusting plate 33 is used. The discharge port 32 is formed by separating the upper half of the adjustment plate 33 from the nozzle 34a. Further, by adjusting the inclination angle of the adjustment plate 33, the discharge angle of the washing water that has passed through the first to fourth circulation water channels can be adjusted.

図６は、本発明の第１の実施の形態における回転ドラム５の回転ドラム底部５ｄの外方からの平面図であり、図７は、回転ドラム５の縦断面図である。   6 is a plan view from the outside of the rotating drum bottom 5d of the rotating drum 5 according to the first embodiment of the present invention, and FIG. 7 is a longitudinal sectional view of the rotating drum 5. As shown in FIG.

回転ドラム底部５ｄは、その外周に外側へ突出するフランジ部５ｆを設けることで、略凹状に形成され、回転ドラム胴部５ｃの後端部分と、フランジ部５ｆとをかしめまたは溶接等により連接している。   The rotating drum bottom 5d is formed in a substantially concave shape by providing a flange portion 5f protruding outward on the outer periphery thereof, and the rear end portion of the rotating drum body 5c and the flange portion 5f are connected by caulking or welding or the like. ing.

この回転ドラム底部５ｄの外面側のフランジ部５ｆ内には、３本の延設部３５ａを略放射状に有するアルミダイキャスト製のドラム固定部材３５が設けられるとともに、３本の延設部３５ａ間に、それぞれ回転ドラム底部５ｄの外周に沿うように形成された略円弧状のリブ取付部材３７が設けられている。   Inside the flange portion 5f on the outer surface side of the rotating drum bottom portion 5d, there are provided a drum fixing member 35 made of aluminum die cast having three extending portions 35a substantially radially, and between the three extending portions 35a. In addition, a substantially arc-shaped rib attachment member 37 formed along the outer periphery of the rotating drum bottom 5d is provided.

ドラム固定部材３５は、モータ７から延出したシャフト７ａとその中央部分で連結され、モータ７の回転を回転ドラム５に伝達している。   The drum fixing member 35 is connected to a shaft 7 a extending from the motor 7 at a central portion thereof, and transmits the rotation of the motor 7 to the rotating drum 5.

リブ取付部材３７は、外周に後方へ凸の外壁４０および内壁４１を設けることで、略凹状に形成し、その内部に外壁４０と内壁４１とを連結する複数本のリブ３８を外壁４０と内壁４１とほぼ同じ高さで、回転ドラム５の中心に対し放射状に設けている。また、その円周方向の両端には、リブ取付部材３７をドラム固定部材３５の延設部３５ａに取り付けるための延設リブ３８ａをそれぞれ設けている。   The rib attachment member 37 is formed in a substantially concave shape by providing an outer wall 40 and an inner wall 41 that protrude rearward on the outer periphery, and a plurality of ribs 38 that connect the outer wall 40 and the inner wall 41 are formed therein. It is substantially the same height as 41 and is provided radially with respect to the center of the rotating drum 5. Further, extending ribs 38 a for attaching the rib attaching member 37 to the extending portion 35 a of the drum fixing member 35 are provided at both ends in the circumferential direction.

ここで、回転ドラム５、ドラム固定部材３５、リブ取付部材３７の組立方法について説
明する。 Here, a method for assembling the rotating drum 5, the drum fixing member 35, and the rib attachment member 37 will be described.

まず、ドラム固定部材３５を、モータ７側を下にして所定の台の上にセットする。次に、３つのリブ取付部材３７を、リブ３８が形成された面側を下にし、延設リブ３８ａが延設部３５ａの所定の位置に位置するようセットし、ねじ３９ａを締め付けて固定する。その後、回転ドラム５を、回転ドラム底部５ｄ側を下にして、ドラム固定部材３５の上に所定の周方向でセットし、外側よりフランジ部５ｆを挟むようにして延設部３５ａに設けたねじ穴（図示せず）にねじ３９ｂを締め付けて固定する。   First, the drum fixing member 35 is set on a predetermined table with the motor 7 side down. Next, the three rib mounting members 37 are set so that the surface on which the ribs 38 are formed face down, the extending ribs 38a are positioned at predetermined positions of the extending portions 35a, and the screws 39a are tightened and fixed. . Thereafter, the rotating drum 5 is set in a predetermined circumferential direction on the drum fixing member 35 with the rotating drum bottom 5d side down, and a screw hole provided in the extending portion 35a so as to sandwich the flange portion 5f from the outside ( The screw 39b is fastened and fixed to the not shown).

以上のように構成されたドラム式洗濯機について、以下その動作及び作用を説明する。   About the drum type washing machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

回転ドラム５内に洗濯物が投入され、運転開始の入力が行われると、制御手段１６は制御プログラムを記憶手段１８から読み出し、以下のような制御手順に応じた制御動作を開始する。   When the laundry is put into the rotating drum 5 and the operation start is input, the control means 16 reads the control program from the storage means 18 and starts a control operation according to the following control procedure.

まず初めに、制御手段１６は、回転ドラム５を回転させて布量検知手段１２で洗濯物の量を検知する。布量検知手段１２は、洗濯物の量に応じて駆動モータ７が受ける負荷変化から洗濯物の量を検知するものであり、検知された洗濯物の量は制御手段１６に入力され、記憶手段１８に記憶される。   First, the control means 16 rotates the rotary drum 5 and the cloth amount detection means 12 detects the amount of laundry. The cloth amount detection means 12 detects the amount of laundry from the load change received by the drive motor 7 in accordance with the amount of laundry, and the detected amount of laundry is input to the control means 16 and stored therein. 18 is stored.

次に、制御手段１６は、給水弁１１を動作させ、外槽６内に水道水を給水する。水位検知手段１４により、検知された洗濯物の量に応じて決定される外槽６内の所定水位を検知すると、制御装置１５に信号を送り給水弁１１の動作を停止させる。給水された洗濯水は、外槽６と回転ドラム５とが筐体１の正面側から背面側に向かって傾斜して配設されているため、外槽本体胴部２ｂ内面と外槽本体底部２ｃ内面との境界近傍でかつ下方に溜まった状態となる。   Next, the control means 16 operates the water supply valve 11 to supply tap water into the outer tub 6. When the water level detection means 14 detects a predetermined water level in the outer tub 6 determined according to the detected amount of laundry, a signal is sent to the control device 15 to stop the operation of the water supply valve 11. Since the outer tub 6 and the rotating drum 5 are disposed so as to be inclined from the front side to the rear side of the housing 1, the supplied washing water is provided with the inner surface of the outer tub main body 2b and the bottom of the outer tub main body. It will be in the state collected in the vicinity of the boundary with 2c inner surface, and the downward direction.

その後、洗濯行程に移行する。モータ７により回転ドラム５を回転させると、回転ドラム５に取り付けられたリブ取付部材３７のリブ３８の回転により洗濯水が図３の矢印Ａの方向に掻きあげられ始める。回転ドラム５の回転速度が、所定の回転速度以上、すなわち洗濯物が回転ドラム５の内面に張り付く程度の回転速度（例えば８０ｒ／ｍｉｎ）になると、洗濯水は、遠心力の影響で外槽本体胴部２ｂと外槽本体底部２ｃの境界近傍に集まって回転し始める。   Then, it shifts to a washing process. When the rotary drum 5 is rotated by the motor 7, the washing water starts to be scraped up in the direction of arrow A in FIG. 3 by the rotation of the rib 38 of the rib attachment member 37 attached to the rotary drum 5. When the rotation speed of the rotary drum 5 is equal to or higher than a predetermined rotation speed, that is, the rotation speed is such that the laundry sticks to the inner surface of the rotary drum 5 (for example, 80 r / min), It gathers in the vicinity of the boundary between the body portion 2b and the outer tank main body bottom portion 2c and starts to rotate.

ここで、外壁４０を設けたことにより、リブ３８に掻きあげられて遠心力により外槽本体胴部２ｂ側へ向かおうとする洗濯水は、リブ取付部材３７に設けた外壁４０によって図７の矢印Ｂのように外壁４０に沿って取水口２０が設けられた外槽本体底部２ｃ側に流れ出ることになる。   Here, since the outer wall 40 is provided, the washing water which is scraped up by the rib 38 and is directed toward the outer tub main body 2b side by centrifugal force is caused by the outer wall 40 provided in the rib attachment member 37 in FIG. As indicated by the arrow B, the water flows out toward the outer tank main body bottom 2c side where the water intake 20 is provided along the outer wall 40.

このように洗濯水は、外槽本体底部２ｃ側に流れ出るとともに、外槽本体胴部２ｂと外槽本体底部２ｃの境界近傍を回転する。このとき、外槽本体底部２ｃには案内凹部２１が設けられているので、洗濯水はリブ取付部材３７から流れ出た勢いと重力とによって案内凹部２１に案内され、取水口２０を介して第１の循環水路２２に流れ込む。   As described above, the washing water flows out toward the outer tub main body bottom 2c side and rotates in the vicinity of the boundary between the outer tub main body trunk 2b and the outer tub main body bottom 2c. At this time, since the guide recess 21 is provided in the outer tub main body bottom 2c, the washing water is guided to the guide recess 21 by the force flowing out from the rib attachment member 37 and the gravity, and the first through the water intake 20 Into the circulating water channel 22.

その後、流れ込んだ洗濯水は、第２の循環水路２６、第３の循環水路２７および第４の循環水路２８を通り、循環ノズル３４に達する。このとき、第１の循環水路２２は円弧状に設けられているので、洗濯水の流れが妨げられることなくスムーズな洗濯水の流れとなる。   Thereafter, the wash water that has flowed in passes through the second circulation water channel 26, the third circulation water channel 27, and the fourth circulation water channel 28, and reaches the circulation nozzle 34. At this time, since the first circulation water channel 22 is provided in an arc shape, the flow of the washing water becomes a smooth flow without being hindered.

循環ノズル３４に達した洗濯水は、調節板３３により、所定の角度で所定の広がりをも
って吐出口から吐出される。このようにして吐出された洗濯水は、回転ドラム５内で回転ドラム５とともに回転している洗濯物に降りかかる。 The wash water that has reached the circulation nozzle 34 is discharged from the discharge port by the adjustment plate 33 with a predetermined spread at a predetermined angle. The washing water discharged in this manner falls on the laundry rotating together with the rotating drum 5 in the rotating drum 5.

このようにして、洗濯物に降りかかった洗濯水は、洗濯物に染み込んだ後、その回転の遠心力により回転ドラム５に設けられた透孔５ｇから回転ドラム５の外に排水され、外槽６内に戻ることとなる。   In this way, the washing water that has fallen on the laundry soaks into the laundry, and is then drained out of the rotating drum 5 from the through holes 5g provided in the rotating drum 5 by the centrifugal force of the rotation, and the outer tub 6 will be returned.

以上のようにして、洗濯物に洗濯水を早期に浸透させることができる。   As described above, the washing water can be permeated into the laundry at an early stage.

ここで、案内凹部２１および取水口２０は、外槽本体底部２ｃの上半分であって、かつ、洗濯水が回転して流れる下流側に設けているので、第１の循環水路２２内の洗濯水には、取水口２０から流れ込んだ時の勢いにさらに重力が付加されるため、洗濯水の流れを強くすることができるので吐出口から吐出される洗濯水の量を増すことができ、洗濯水を広範囲に洗濯物にふりかけることができる。   Here, since the guide recess 21 and the water intake 20 are provided in the upper half of the outer tub main body bottom 2c and on the downstream side where the wash water rotates, the washing in the first circulation water channel 22 is performed. Since gravity is further added to the momentum when the water flows from the water intake 20, the flow of the washing water can be strengthened, so that the amount of the washing water discharged from the discharge port can be increased. Water can be sprinkled on laundry extensively.

また、取水口２０および案内凹部２１を洗濯水の流れの下流側に設けることにより、上流側に設けた場合に比べて第１の循環水路２２が短くなるため、コストが下がり、また洗濯水が第１の循環水路２２を通過することにより受ける抵抗を減らすことができる。さらにより長く回転ドラムの回転による力を受けることができるので、取水口２０に取り込まれる勢いを上げることができる。   Further, by providing the water intake 20 and the guide recess 21 on the downstream side of the washing water flow, the first circulation water channel 22 becomes shorter than the case where it is provided on the upstream side. The resistance received by passing through the first circulation channel 22 can be reduced. Furthermore, since it can receive the force by rotation of a rotating drum longer, the momentum taken in by the water intake 20 can be raised.

また、吐出口３２は、取水口２０より低い位置に設けられているので、取水口２０と吐出口３２との高低差、すなわち位置水頭により吐出口３２側の水圧を高くすることができるため、吐出する洗濯水の勢いが増し、循環流量を増やすことができる。また、吐出する洗濯水の勢いが増すことにより、回転ドラム５内の洗濯物に広く洗濯水をかけることが可能となる。   Further, since the discharge port 32 is provided at a position lower than the intake port 20, the water pressure on the discharge port 32 side can be increased by the height difference between the intake port 20 and the discharge port 32, that is, the position head. The momentum of the washing water discharged increases, and the circulation flow rate can be increased. Further, since the momentum of the discharged washing water increases, the washing water in the rotating drum 5 can be widely poured.

その後、回転ドラム５の回転を一旦停止し、次に回転ドラム５の内面に設けられた撹拌突起５ｅに引っ掛けられて回転方向に持ち上げられて適当な高さから落下する回転速度で、回転ドラム５を回転させる動作、すなわち叩き洗いを行う。ここでは、外槽６に溜まった洗濯水を回転ドラム５内へ循環させることにより、洗濯物に洗濯水が十分浸透した状態で叩き洗いが行われるため、洗濯水の浸透が不十分な場合に比べて洗浄力を向上させることができるともに、洗浄ムラを減らすことができる。また、同じ洗浄効果を得るための時間が短くなり、洗い時間を短縮することが可能となる。   Thereafter, the rotation of the rotating drum 5 is temporarily stopped, and then the rotating drum 5 is pulled at a rotation speed that is hooked on the stirring protrusion 5e provided on the inner surface of the rotating drum 5 and lifted in the rotating direction to fall from an appropriate height. Rotating, that is, scouring. Here, the washing water collected in the outer tub 6 is circulated into the rotary drum 5 so that the washing water is sufficiently permeated into the laundry, so that the washing water is not sufficiently penetrated. Compared with this, the cleaning power can be improved and cleaning unevenness can be reduced. Further, the time for obtaining the same cleaning effect is shortened, and the washing time can be shortened.

なお、本実施の形態において取水口２０の位置は図３で示したように外槽本体底部２ｃの上半分でかつ洗濯水が回転して流れる下流側に配置したが、回転ドラム５の回転に伴って外槽６内を回転して流れる洗濯水を取り込み、吐出口３２から吐出させることができれば、取水口２０の位置はこの場所に限らない。   In the present embodiment, the position of the water intake 20 is arranged in the upper half of the outer tub main body bottom 2c as shown in FIG. Accordingly, the position of the water intake 20 is not limited to this location as long as it can take in the wash water flowing in the outer tub 6 and discharge it from the discharge port 32.

（実施の形態２）
図８は、本発明の第２の実施の形態における外槽本体４２の斜視図である。実施の形態１と同一の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)
FIG. 8 is a perspective view of the outer tub body 42 in the second embodiment of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

図８に示すように、外槽本体底部４２ｃと外槽本体胴部４２ｂの境界部の近傍であって外槽本体胴部４２ｂ内面には、略凹状に形成された外槽本体胴溝部４２ｅを、外槽本体胴部４２ｂと略同心円の円弧状に設けている。外槽本体胴溝部４２ｅには、内面側より外槽本体胴溝部４２ｅに対応した形状の外槽本体溝蓋４３が、その外周近傍に設けられた第４のパッキング部材４４を介して外周部をねじ４５にてねじ止め固定されており、この外槽本体胴溝部４２ｅと外槽本体溝蓋４３とにより第１の循環水路４６が形成されている。
第１の循環水路４６の一端である取水口４７と案内凹部４８も外槽本体胴部４２ｂに形成されており、構成については本発明の第１の実施の形態と同様である。また、第２の循環水路４９は本発明の第１の実施の形態と同様に形成されており、第２の循環水路４９の外槽本体底部４２ｃ側の端が第１の循環水路４６の他端に連通している。 As shown in FIG. 8, an outer tub body trunk groove 42e formed in a substantially concave shape is formed on the inner surface of the outer tub body trunk 42b in the vicinity of the boundary between the outer tub body bottom 42c and the outer tub body trunk 42b. The outer tub main body 42b is provided in a substantially concentric arc shape. An outer tub body groove cover 43 having a shape corresponding to the outer tub body body groove part 42e is formed on the outer tub body body groove part 42e from the inner surface side through a fourth packing member 44 provided in the vicinity of the outer periphery. A first circulating water channel 46 is formed by the outer tub main body trunk groove portion 42e and the outer tub main body groove lid 43.
A water intake 47 and a guide recess 48, which are one end of the first circulation water channel 46, are also formed in the outer tub main body trunk 42b, and the configuration is the same as that of the first embodiment of the present invention. The second circulating water channel 49 is formed in the same manner as in the first embodiment of the present invention, and the end of the second circulating water channel 49 on the outer tank main body bottom 42c side is the other of the first circulating water channel 46. It communicates with the end.

図９は本発明の第２の実施の形態における回転ドラム５の回転ドラム底部５ｄの外方からの平面図であり、図１０は回転ドラム５の縦断面図である。   FIG. 9 is a plan view from the outside of the rotating drum bottom 5d of the rotating drum 5 according to the second embodiment of the present invention, and FIG. 10 is a longitudinal sectional view of the rotating drum 5.

リブ取付部材５１は、外周に後方へ凸の内壁５２を設けることで略Ｌ状に形成し、その内部に内壁５２に連結する複数本のリブ５３を内壁５２と同じ高さで、回転ドラム５の中心に対し放射状に設けている。   The rib attachment member 51 is formed in a substantially L shape by providing an inner wall 52 that protrudes rearward on the outer periphery, and a plurality of ribs 53 that are connected to the inner wall 52 are provided at the same height as the inner wall 52. It is provided radially with respect to the center.

以上のように構成されたドラム式洗濯機について、その動作及び作用を説明する。   About the drum type washing machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated.

洗濯行程において、リブ５３に掻きあげられた洗濯水は、図９の矢印Ｃのように遠心力により外周側へ向かい、外槽本体胴部４２ｂ側へ流れ出る。そして外槽本体胴部４２ｂ側へ流れ出るとともに外槽本体胴部４２ｂと外槽本体底部４２ｃの境界近傍を回転する。このとき、外槽本体胴部４２ｂには案内凹部４８が設けられているので、洗濯水は案内凹部４８に案内され、取水口４７を介して第１の循環水路４６に流れ込む。   In the washing process, the washing water picked up by the ribs 53 moves toward the outer peripheral side by centrifugal force as indicated by an arrow C in FIG. 9, and flows out toward the outer tub main body body 42b. And while flowing out to the outer tub main body trunk | drum 42b side, the boundary vicinity of the outer tub main body trunk | drum 42b and the outer tub main body bottom part 42c is rotated. At this time, since the guide recess 48 is provided in the outer tub main body 42 b, the wash water is guided by the guide recess 48 and flows into the first circulation water channel 46 through the water intake 47.

なお、本実施の形態では取水口４７を外槽本体胴部４２ｂと外槽本体底部４２ｃの境界近傍に形成したが、回転ドラム５の回転に伴って外槽５０内を回転して流れる洗濯水を取り込み、吐出口３２から吐出させることができれば、取水口４７の位置はこの場所に限らない。   In the present embodiment, the water intake 47 is formed in the vicinity of the boundary between the outer tub main body 42b and the outer tub main body bottom 42c. However, the washing water that rotates and flows in the outer tub 50 as the rotary drum 5 rotates. If the water can be taken in and discharged from the discharge port 32, the position of the water intake 47 is not limited to this location.

例えば、回転ドラム５の回転軸が水平方向であるドラム式洗濯機の場合、洗濯水は外槽本体胴部４２ｂの内面を略均一に回転するため、外槽本体胴部４２ｂと外槽本体底部４２ｃの境界近傍に形成する必要はなく、外槽本体胴部４２ｂと外槽本体底部４２ｃの境界近傍から離れた位置に取水口４７を形成しても本実施の形態と同様の効果を奏することができる。   For example, in the case of a drum-type washing machine in which the rotation axis of the rotating drum 5 is horizontal, the washing water rotates substantially uniformly on the inner surface of the outer tub main body body 42b, and therefore the outer tub main body body 42b and the outer tub main body bottom. It is not necessary to form near the boundary of 42c, and even if the water intake 47 is formed at a position away from the vicinity of the boundary between the outer tub main body 42b and the outer tub main body bottom 42c, the same effect as the present embodiment can be obtained. Can do.

（実施の形態３）
図１０は、本発明の第３の実施の形態における回転ドラム５の回転ドラム底部５ｄの外方からの平面図である。 (Embodiment 3)
FIG. 10 is a plan view from the outside of the rotating drum bottom 5d of the rotating drum 5 according to the third embodiment of the present invention.

図１０に示すようにリブ取付部材５４は、リブ５５を、外壁４０及び内壁４１とほぼ同じ高さで、外周側に向かうにつれ外槽６内を回転する洗濯水の流れ方向に向かって所定の角度で傾斜させている。実施の形態１と同様の構成については同一符号を付し、その説明を省略する。   As shown in FIG. 10, the rib attachment member 54 has a predetermined height in the flow direction of the washing water that rotates the inside of the outer tub 6 toward the outer peripheral side at the same height as the outer wall 40 and the inner wall 41. It is inclined at an angle. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

以上のように構成されたドラム式洗濯機について、その動作及び作用を説明する。   About the drum type washing machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated.

洗濯行程において、回転ドラム５は図１０の矢印Ｄの方向へ所定の回転速度（例えば、８０ｒ／ｍｉｎ）で回転する。実施の形態１と同様に、洗濯水はリブ取付部材５４のリブ５５に掻きあげられて取水口２０に取り込まれ、第１の循環水路２２、第２の循環水路２６、第３の循環水路２７および第４の循環水路２８を通って循環ノズル３４から回転ドラム５内に吐出され、洗濯物に降りかかる。このように洗濯物に洗濯水が十分浸透させた状態で叩き洗いが行われる。   In the washing process, the rotating drum 5 rotates at a predetermined rotation speed (for example, 80 r / min) in the direction of arrow D in FIG. As in the first embodiment, the wash water is scraped up by the rib 55 of the rib attachment member 54 and taken into the water intake 20, and the first circulation water channel 22, the second circulation water channel 26, and the third circulation water channel 27. Then, the water is discharged from the circulation nozzle 34 into the rotary drum 5 through the fourth circulation water passage 28 and falls onto the laundry. In this way, the washing is performed in a state where the washing water is sufficiently infiltrated into the laundry.

洗濯行程を終了すると、排水弁１３を開き、洗濯水を排水する。排水が終わると前記洗
濯モータ７により、回転ドラム５を約９００ｒ／ｍｉｎで高速回転させ脱水を行う。この脱水行程において、実施の形態１におけるリブ３８のようにリブを放射状に設けた場合、洗濯水は、回転ドラム５の回転により回転力を受けて回転ドラム５の回転方向へ押されるとともに、遠心力を受けて外周側へ押される。外周側へ押されると、外槽６と回転ドラム５との間が洗濯水で満たされやすくなるため、洗濯水は回転ドラム５の回転で掻きあげられやすくなる。そのため、洗濯水は排水弁１３と連通し外槽６の底部に設けられた排水口（図示せず）を通り越して外槽６内を回転してしまい排水弁１３から排水されにくくなる。また、洗濯水は取水口２０に取り込まれてしまい、回転ドラム内に循環されてしまう。 When the washing process is finished, the drain valve 13 is opened and the washing water is drained. When drainage is completed, the washing motor 7 rotates the rotating drum 5 at a high speed of about 900 r / min to perform dehydration. In this dewatering process, when the ribs are provided radially like the ribs 38 in the first embodiment, the washing water receives a rotational force by the rotation of the rotating drum 5 and is pushed in the rotating direction of the rotating drum 5 and is centrifuged. It receives force and is pushed to the outer periphery. When pushed to the outer peripheral side, the space between the outer tub 6 and the rotating drum 5 is easily filled with the washing water, so that the washing water is easily scraped by the rotation of the rotating drum 5. Therefore, the wash water communicates with the drain valve 13, passes through a drain port (not shown) provided at the bottom of the outer tub 6, rotates inside the outer tub 6, and is not easily drained from the drain valve 13. Further, the washing water is taken into the water intake 20 and circulated in the rotating drum.

一方、本実施の形態３では、リブ取付部材５４のリブ５５を回転方向に傾斜して設けているため、洗濯水は、遠心力によって外周側へ押され外周側へ向かって流れようとするが、リブ５５に当たって流れる向きを規制され、回転方向（矢印Ｄの方向）へ押し出される。このように、リブを放射状に設けた場合に比べて、外周側へ流れる洗濯水の量がリブ５５によって規制されて少なくなるため、外槽本体２と回転ドラム５の間が洗濯水に満たされにくくなり、回転ドラム５の回転によって与えられる回転力が弱まり、洗濯水は排水口（図示せず）から排水されやすくなる。   On the other hand, in Embodiment 3, since the rib 55 of the rib attachment member 54 is provided to be inclined in the rotational direction, the washing water is pushed toward the outer peripheral side by centrifugal force and tends to flow toward the outer peripheral side. The direction of flowing against the rib 55 is restricted, and the rib 55 is pushed out in the rotation direction (the direction of the arrow D). Thus, compared to the case where the ribs are provided radially, the amount of the washing water flowing toward the outer peripheral side is restricted by the ribs 55 and thus the space between the outer tub body 2 and the rotating drum 5 is filled with the washing water. The rotational force applied by the rotation of the rotary drum 5 is weakened, and the washing water is easily drained from a drain port (not shown).

（実施の形態４）
図１１は、本発明の第４の実施の形態における回転ドラム５の回転ドラム底部５ｄの外方からの平面図である。 (Embodiment 4)
FIG. 11 is a plan view from the outside of the rotating drum bottom 5d of the rotating drum 5 according to the fourth embodiment of the present invention.

図１１に示すように、リブ取付部材５６のリブ５７を、外壁４０及び内壁４１とほぼ同じ高さで、外槽６内を回転する洗濯水の流れ方向と反対方向に凸となるように湾曲させている。実施の形態１と同様の構成については同一符号を付し、その説明を省略する。   As shown in FIG. 11, the rib 57 of the rib attachment member 56 is curved so as to be convex in the direction opposite to the flow direction of the washing water rotating in the outer tub 6 at substantially the same height as the outer wall 40 and the inner wall 41. I am letting. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

以上のように構成されたドラム式洗濯機について、その動作及び作用を説明する。   About the drum type washing machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated.

洗濯行程において、回転ドラム５は図１１の矢印Ｅの方向へ所定の回転速度（例えば、８０ｒ／ｍｉｎ）で回転する。このとき、リブ取付部材５６のリブ５７に掻きあげられた洗濯水には、回転力と遠心力が与えられる。   In the washing process, the rotating drum 5 rotates at a predetermined rotation speed (for example, 80 r / min) in the direction of arrow E in FIG. At this time, rotational force and centrifugal force are applied to the wash water scraped up by the rib 57 of the rib attachment member 56.

本実施の形態４では、リブ取付部材５６のリブ５７を外槽６内を回転する洗濯水の流れ方向（矢印Ｅの方向）と反対方向に凸となるように湾曲させて設けているため、洗濯水は、回転方向へ流れながら遠心力によりリブ５７に沿ってリブ５７の外周端まで流れ、その後リブ５７から離れて流れる。このとき、リブ５７の外周近傍の接線が回転方向に傾斜しているため、洗濯水はリブ５７の外周端から離れるときに回転方向（矢印Ｅの方向）へ押し出される力が与えられる。従って、洗濯水はリブを放射状に設けた場合に比べて回転方向へより強く押し出され、回転流量が増加することとなる。   In the fourth embodiment, the rib 57 of the rib mounting member 56 is provided so as to be convex in the opposite direction to the flow direction of the washing water rotating in the outer tub 6 (direction of arrow E). The washing water flows along the ribs 57 to the outer peripheral end of the ribs 57 while flowing in the rotation direction, and then flows away from the ribs 57. At this time, since the tangent line in the vicinity of the outer periphery of the rib 57 is inclined in the rotation direction, the washing water is given a force pushed in the rotation direction (the direction of arrow E) when leaving the outer peripheral end of the rib 57. Accordingly, the washing water is pushed out more strongly in the rotation direction than in the case where the ribs are provided radially, and the rotation flow rate increases.

これにより、取水口２０から流れ込む時の勢いがさらに強くなるとともに、取水口２０に取り込まれる流量が増加するため、循環ノズル３４から吐出される洗濯水の勢いが増し、循環流量を増やすことができ、洗濯水を広範囲に洗濯物に対してふりかけることができる。   As a result, the momentum when flowing from the intake port 20 is further increased, and the flow rate taken into the intake port 20 is increased, so the momentum of the wash water discharged from the circulation nozzle 34 is increased, and the circulation flow rate can be increased. The washing water can be sprinkled on the laundry in a wide range.

（実施の形態５）
図１２は、本発明の第５の実施の形態における回転ドラム５の回転ドラム底部５ｄの外方からの平面図である。 (Embodiment 5)
FIG. 12 is a plan view from the outside of the rotating drum bottom 5d of the rotating drum 5 according to the fifth embodiment of the present invention.

図１２に示すように、リブ取付部材５８のリブ５９を、実施の形態３と同様に、外壁４０及び内壁４１とほぼ同じ高さで、外周側に向かうにつれ外槽６内を回転する洗濯水の流
れ方向に向かって所定の角度で傾斜させ、かつ、実施の形態４と同様に、外槽６内を回転する洗濯水の流れ方向と反対方向に凸となるように湾曲させている。実施の形態１と同様の構成については同一符号を付し、その説明を省略する。 As shown in FIG. 12, the rib 59 of the rib attachment member 58 has the same height as the outer wall 40 and the inner wall 41 as in the third embodiment, and the washing water rotates in the outer tub 6 toward the outer peripheral side. And is curved so as to be convex in a direction opposite to the flow direction of the washing water rotating in the outer tub 6 in the same manner as in the fourth embodiment. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

以上のように構成されたドラム式洗濯機について、その動作及び作用を説明する。   About the drum type washing machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated.

洗濯行程において、回転ドラム５は図１２の矢印Ｆの方向へ所定の回転速度（例えば、８０ｒ／ｍｉｎ）で回転する。このとき、リブ取付部材５６のリブ５７に掻きあげられた洗濯水には、回転力と遠心力が与えられる。   In the washing process, the rotating drum 5 rotates at a predetermined rotation speed (for example, 80 r / min) in the direction of arrow F in FIG. At this time, rotational force and centrifugal force are applied to the wash water scraped up by the rib 57 of the rib attachment member 56.

本実施の形態５では、リブ取付部材５８のリブ５９を外槽６内を回転する洗濯水の流れ方向（矢印Ｆの方向）と反対方向に凸となるように湾曲させて設けているため、洗濯水は、回転方向へ流れながら遠心力によりリブ５９に沿ってリブ５９の外周端まで流れ、その後リブ５９から離れて流れる。このとき、リブ５９の外周近傍の接線が回転方向に傾斜しているため、洗濯水はリブ５９の外周端から離れるときに回転方向（矢印Ｆの方向）へ押し出される力が与えられる。従って、洗濯水はリブを放射状に設けた場合に比べて回転方向へより強く押し出され、回転流量が増加することとなる。   In the fifth embodiment, the rib 59 of the rib attachment member 58 is provided to be curved so as to protrude in the direction opposite to the flow direction of the washing water rotating in the outer tub 6 (the direction of the arrow F). The washing water flows along the rib 59 to the outer peripheral end of the rib 59 while flowing in the rotation direction, and then flows away from the rib 59. At this time, since the tangent line in the vicinity of the outer periphery of the rib 59 is inclined in the rotation direction, the washing water is given a force pushed in the rotation direction (the direction of the arrow F) when leaving the outer peripheral end of the rib 59. Accordingly, the washing water is pushed out more strongly in the rotation direction than in the case where the ribs are provided radially, and the rotation flow rate increases.

これにより、取水口２０から流れ込む時の勢いがさらに強くなるとともに、取水口２０に取り込まれる流量が増加するため、循環ノズル３４から吐出される洗濯水の勢いが増し、循環流量を増やすことができ、洗濯水を広範囲に洗濯物に対してふりかけることができる。   As a result, the momentum when flowing from the intake port 20 is further increased, and the flow rate taken into the intake port 20 is increased, so the momentum of the wash water discharged from the circulation nozzle 34 is increased, and the circulation flow rate can be increased. The washing water can be sprinkled on the laundry in a wide range.

また、脱水行程において、外槽６内の洗濯水は、遠心力によって外周側へ押され外周側へ向かって流れようとするが、リブ５９に当たって流れる向きを規制され、回転方向（矢印Ｆの方向）へ押し出される。このように、リブを放射状に設けた場合に比べて、外周側へ流れる洗濯水の量がリブ５９によって規制されて少なくなるため、外槽本体２と回転ドラム５の間が洗濯水に満たされにくくなり、回転ドラム５の回転によって与えられる回転力が弱まり、洗濯水は排水口（図示せず）から排水されやすくなる。   Further, in the dehydration process, the washing water in the outer tub 6 is pushed toward the outer peripheral side by centrifugal force and tends to flow toward the outer peripheral side. However, the direction of flowing against the rib 59 is restricted, and the rotation direction (the direction of the arrow F) ). Thus, compared to the case where the ribs are provided radially, the amount of washing water flowing toward the outer peripheral side is restricted by the ribs 59, and thus the space between the outer tub body 2 and the rotating drum 5 is filled with washing water. The rotational force applied by the rotation of the rotary drum 5 is weakened, and the washing water is easily drained from a drain port (not shown).

なお、実施の形態１〜５では、第１の循環水路２２及び４６を、外槽本体底部２ｃまたは外槽本体胴部４２ｂの内面に設けた略凹状の外槽本体底溝部２ｄまたは外槽本体胴溝部４２ｅと、外槽本体蓋２３及び外槽本体溝蓋４３とにより形成したが、この第１の循環水路２２及び４６を外槽本体２と別部品で設け、その別部品で設けたパイプ状の第１の循環水路２２及び４６の一端を外槽本体底部２ｃ及び外槽本体胴部４２ｂに形成した取水口２０に連通させ、他端を第２の循環水路２６及び４９に連通させてもよい。   In the first to fifth embodiments, the first circulation water passages 22 and 46 are provided in the outer tank main body bottom 2c or the outer tank main body 42b on the inner surface of the substantially concave outer tank main body bottom groove 2d or the outer tank main body. The body groove portion 42e, the outer tank main body lid 23 and the outer tank main body groove lid 43 are formed. The first circulation water channels 22 and 46 are provided as separate parts from the outer tank main body 2, and pipes provided as separate parts are provided. One end of each of the first circulation channels 22 and 46 is connected to the water intake 20 formed in the outer tank body bottom 2c and the outer tank body body 42b, and the other end is connected to the second circulation channels 26 and 49. Also good.

また、実施の形態１〜５において外槽本体底部２ｃ、外槽本体底部４２ｃ、外槽本体溝蓋２３、外槽本体溝蓋４３、外槽カバー３及び外槽カバー溝蓋２９は、それぞれねじ止めにより接続固定したが、ねじ止めに限らず、例えば溶着等、両者を密閉して接続固定できるものであればよい。   In the first to fifth embodiments, the outer tub main body bottom 2c, the outer tub main body bottom 42c, the outer tub main body groove lid 23, the outer tub main body groove lid 43, the outer tub cover 3 and the outer tub cover groove lid 29 are each screwed. The connection is fixed by fastening. However, the fixing is not limited to screwing, and any connection may be used as long as both can be sealed and fixed, such as welding.

また、本実施の形態１〜５において循環ノズル３４を２つ形成したが、循環ノズル３４は単数でも複数でもよく、また配置場所は洗濯水を回転ドラム５内へ循環できる場所であればよい。   In the first to fifth embodiments, the two circulation nozzles 34 are formed. However, the circulation nozzle 34 may be a single or a plurality of circulation nozzles 34 and may be disposed at any place where the washing water can be circulated into the rotary drum 5.

以上のように、本発明にかかるドラム式洗濯機は、循環ポンプを用いずに叩き洗いすることができるため、洗浄力を向上させることができるともに洗浄ムラを減少させることが可能となるので、洗濯機に限らず、回転ドラムを回転させながら洗浄を行う各種機器、装
置にも広く適用できるものである。 As described above, since the drum type washing machine according to the present invention can be washed without using a circulation pump, it is possible to improve cleaning power and reduce cleaning unevenness. The present invention can be widely applied not only to a washing machine but also to various devices and apparatuses that perform cleaning while rotating a rotating drum.

本発明の実施の形態１におけるドラム式洗濯機の断面図Sectional drawing of the drum type washing machine in Embodiment 1 of this invention 同制御装置の構成を示すブロック図Block diagram showing the configuration of the controller 同外槽本体の斜視図Perspective view of the outer tank body 同外槽カバーの斜視図Perspective view of the outer tank cover （ａ）同循環ノズルの正面図（ｂ）同循環ノズルの平面図（ｃ）同循環ノズルの側断面図(A) Front view of the circulation nozzle (b) Plan view of the circulation nozzle (c) Side sectional view of the circulation nozzle 同回転ドラムの底部の外方からの平面図Plan view from the outside of the bottom of the rotating drum 同回転ドラムの縦断面図Vertical section of the same rotating drum 本発明の実施の形態２における外槽本体の斜視図The perspective view of the outer tank main body in Embodiment 2 of this invention 同回転ドラムの底部の外方からの平面図Plan view from the outside of the bottom of the rotating drum 本発明の実施の形態３における回転ドラムの底部の外方からの平面図The top view from the outside of the bottom part of the rotating drum in Embodiment 3 of this invention 本発明の実施の形態４における回転ドラムの底部の外方からの平面図The top view from the outside of the bottom part of the rotating drum in Embodiment 4 of this invention 本発明の実施の形態５における回転ドラムの底部の外方からの平面図The top view from the outside of the bottom part of the rotating drum in Embodiment 5 of this invention 従来のドラム式洗濯機の構造を示す断面図Sectional drawing which shows the structure of the conventional drum type washing machine

１ 筐体
５ 回転ドラム
６ 外槽
２０ 取水口
２１ 案内凹部
２２ 第１の循環水路
２６ 第２の循環水路
２７ 第３の循環水路
２８ 第４の循環水路
３２ 吐出口 DESCRIPTION OF SYMBOLS 1 Case 5 Rotating drum 6 Outer tank 20 Water intake 21 Guide recessed part 22 1st circulating water channel 26 2nd circulating water channel 27 3rd circulating water channel 28 4th circulating water channel 32 Discharge port

Claims (9)

筐体と、前記筐体に内包され衣類出入用の第１開口部を有する有底円筒状の外槽と、前記外槽に回転自在に内包され前記第１開口部に対応して開口する第２開口部と前記筐体の正面側から背面側に向かって下向きに傾斜した回転軸とを有する有底円筒状の回転ドラムとを備え、前記回転ドラムの回転に伴って前記外槽内を回転する洗濯水が入り込む取水口を外槽底部内面と外槽胴部内面との境界近傍に設けるとともに、前記取水口と一端が連通する循環水路と、前記循環水路の他端と連通し前記回転ドラム内に洗濯水を吐出する吐出口とを前記外槽に設け、前記回転ドラムを回転させることで前記取水口から取り込んだ洗濯水を前記吐出口より前記回転ドラムに戻すことを特徴とするドラム式洗濯機。 A casing, a bottomed cylindrical outer tub enclosed in the casing and having a first opening for entering and exiting clothing, and a first opening that corresponds to the first opening and is rotatably included in the outer tub. and a bottomed cylindrical rotary drum having a rotary axis inclined downwardly toward the rear side and second opening from the front side of the housing, the outer vessel with the rotation of the front Symbol rotary drum A water intake port through which rotating wash water enters is provided in the vicinity of the boundary between the inner surface of the outer bottom of the outer tub and the inner surface of the outer tub body, a circulation water channel that communicates with the water intake and one end, and the other end of the circulation water channel. It provided a discharge port for discharging the washing water into the drum in the outer tub, drum and returning the captured wash water from the water intake by rotating the rotary drum to the rotary drum from the discharge port Type washing machine. 吐出口は、第１開口部の外周近傍の内面側であって、回転ドラムの第２開口部を介して前記回転ドラム内に洗濯水が吐出される位置に設けられたことを特徴とする請求項１記載のドラム式洗濯機。 The discharge port is provided on the inner surface side in the vicinity of the outer periphery of the first opening, at a position where washing water is discharged into the rotary drum via the second opening of the rotary drum. Item 2. The drum type washing machine according to Item 1. 取水口は、吐出口よりも高い位置に設けられた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 water intake port is provided at a position higher than the discharge port . 取水口は、外槽底部の内面側であって、その上半分側で、かつ前記外槽内を回転する洗濯水の流れの下流側に設けられ、吐出口は、前記外槽の第１開口部の外周近傍の内面側であって、その下半分側に設けられたことを特徴とする請求項１〜３のいずれか１項に記載のドラム式洗濯機。 The water intake port is provided on the inner surface side of the bottom of the outer tub, on the upper half side thereof, and on the downstream side of the flow of washing water rotating in the outer tub, and the discharge port is the first opening of the outer tub. The drum type washing machine according to any one of claims 1 to 3, wherein the drum type washing machine is provided on an inner surface side in the vicinity of the outer periphery of the portion and on a lower half side thereof . 回転ドラム底部の外面側には、外槽底部側へ突出したリブが複数本設けられたことを特徴とする請求項１〜４のいずれか１項に記載のドラム式洗濯機。 The drum type washing machine according to any one of claims 1 to 4, wherein a plurality of ribs protruding toward the outer tub bottom portion side are provided on the outer surface side of the rotating drum bottom portion . 複数本のリブは、回転ドラム底部の外周近傍に略放射状に設けられるとともに、略円弧形状をなす略円弧リブにより前記回転ドラムの外周近傍で連結されるように構成し、取水口は、外槽底部内面と外槽胴部内面の境界近傍の外槽底部内面に設けられたことを特徴とする請求項５記載のドラム式洗濯機。 The plurality of ribs are provided substantially radially in the vicinity of the outer periphery of the rotating drum bottom, and are configured to be connected in the vicinity of the outer periphery of the rotating drum by a substantially arc-shaped rib having a substantially arc shape. 6. The drum type washing machine according to claim 5 , wherein the drum type washing machine is provided on the inner surface of the bottom of the outer tub near the boundary between the inner surface of the bottom and the inner surface of the outer tub body . 複数本のリブは、回転ドラム底部の外周近傍に略放射状に設けられ、取水口は、外槽底部内面と外槽胴部内面との境界近傍の前記外槽胴部内面に設けられたことを特徴とする請求項５記載のドラム式洗濯機。 The plurality of ribs are provided substantially radially near the outer periphery of the bottom of the rotating drum , and the water intake is provided on the inner surface of the outer tank body near the boundary between the inner surface of the outer tank bottom and the inner surface of the outer tank body. 6. A drum type washing machine according to claim 5, characterized in that: 複数本のリブは、その外周側に向かうに従って外槽内を回転する洗濯水の流れ方向に向かって所定の角度で傾斜するようにしたことを特徴とする請求項６または７に記載のドラム式洗濯機。 The drum type according to claim 6 or 7 , wherein the plurality of ribs are inclined at a predetermined angle toward a flow direction of washing water rotating in the outer tub toward the outer peripheral side thereof. Washing machine. 複数本のリブは、外槽内を回転する洗濯水の流れの方向と反対方向に凸となるように湾曲したことを特徴とする請求項６または７に記載のドラム式洗濯機。 The drum-type washing machine according to claim 6 or 7 , wherein the plurality of ribs are curved so as to protrude in a direction opposite to a direction of the washing water rotating in the outer tub .
JP2005201507A 2005-07-11 2005-07-11 Drum washing machine Expired - Fee Related JP4466492B2 (en)

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Application Number Priority Date Filing Date Title
JP2005201507A JP4466492B2 (en) 2005-07-11 2005-07-11 Drum washing machine
MYPI20063136A MY146893A (en) 2005-07-11 2006-06-30 Drum type washing machine
SG200604495A SG129363A1 (en) 2005-07-11 2006-07-04 Drum type washing machine
TW095124456A TW200706731A (en) 2005-07-11 2006-07-05 A drum type washer
CNU2006201294319U CN2928911Y (en) 2005-07-11 2006-07-05 Drum type washing machine
CNB2006101054485A CN100562616C (en) 2005-07-11 2006-07-05 Tumbling-box washing machine
KR1020060064718A KR100785555B1 (en) 2005-07-11 2006-07-11 Drum type washing machine

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KR101396969B1 (en) * 2007-04-27 2014-05-20 엘지전자 주식회사 Device for injecting circulation water to drum in washing machine and washing machine using the same
TW201114972A (en) * 2009-09-09 2011-05-01 Panasonic Corp Drum type washing machine
EP2631349B1 (en) * 2010-01-08 2017-04-26 Panasonic Corporation Washing machine
WO2013031050A1 (en) * 2011-09-02 2013-03-07 パナソニック株式会社 Drum-type washing machine
JP6111175B2 (en) * 2013-09-25 2017-04-05 日立アプライアンス株式会社 Drum washing machine
JP2014195741A (en) * 2014-07-16 2014-10-16 パナソニック株式会社 Drum type washing machine
JP5982651B2 (en) * 2014-07-16 2016-08-31 パナソニックＩｐマネジメント株式会社 Drum washing machine
CN110359229B (en) * 2018-03-26 2023-08-08 宁国聚隆减速器有限公司 Bidirectional washing drum, washing machine and control method
CN109457436B (en) * 2018-11-08 2020-11-10 山东大成洗涤机械有限公司 Drum type washing machine with reactive potential energy backflow device

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CN2928911Y (en) 2007-08-01
SG129363A1 (en) 2007-02-26
CN100562616C (en) 2009-11-25
KR100785555B1 (en) 2007-12-13
KR20070007731A (en) 2007-01-16
TW200706731A (en) 2007-02-16
TWI316571B (en) 2009-11-01
JP2007014678A (en) 2007-01-25
CN1896361A (en) 2007-01-17

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