JP6712245B2 - Washing machine - Google Patents

Washing machine Download PDF

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Publication number
JP6712245B2
JP6712245B2 JP2017077751A JP2017077751A JP6712245B2 JP 6712245 B2 JP6712245 B2 JP 6712245B2 JP 2017077751 A JP2017077751 A JP 2017077751A JP 2017077751 A JP2017077751 A JP 2017077751A JP 6712245 B2 JP6712245 B2 JP 6712245B2
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circulation flow
washing
washing tub
flow path
inner peripheral
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JP2018175256A (en
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健太 高中
健太 高中
丈 曽我
丈 曽我
浩司 千葉
浩司 千葉
祐太朗 林
祐太朗 林
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Hitachi Global Life Solutions Inc
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Hitachi Global Life Solutions Inc
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Priority to JP2017077751A priority Critical patent/JP6712245B2/en
Priority to CN201711499140.8A priority patent/CN108691141B/en
Priority to TW107100292A priority patent/TWI656256B/en
Publication of JP2018175256A publication Critical patent/JP2018175256A/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
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/06—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by rotary impellers
    • 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
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/04—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid solely by water jets
    • 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
    • D06F37/265—Counterweights mounted to the tub; Mountings therefor
    • 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
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • 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

Description

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

洗濯槽の底部に設けられる撹拌翼を回転させることで、洗濯水を揚水して循環させる洗濯機が知られている。このような洗濯機として、例えば、特許文献１には、洗濯槽の「胴部の内周面側に配置される…第１のカバー部材」と、この「第１のカバー部材に対し、洗濯槽の内周側から装着」される第２のカバー部材と、を備えたものが記載されている。 2. Description of the Related Art There is known a washing machine that pumps and circulates wash water by rotating a stirring blade provided at the bottom of a washing tub. As such a washing machine, for example, in Patent Document 1, "a first cover member is disposed on the inner peripheral surface side of the body portion of the washing tub..." and "the first cover member is washed. And a second cover member that is “mounted from the inner peripheral side of the tank”.

特開２００９−２８１４６号公報JP, 2009-28146, A

しかしながら、特許文献１に記載の洗濯機は、第１のカバー部材や第２のカバー部材等を備える構成であるため、構造の複雑化や製造コストの増加を招くという事情がある。また、第１のカバー部材と第２のカバー部材との係合箇所に糸屑等が入り込む可能性もある。 However, since the washing machine described in Patent Document 1 is configured to include the first cover member, the second cover member, and the like, there are circumstances in which the structure is complicated and the manufacturing cost is increased. In addition, there is a possibility that thread waste or the like may enter the engaging portion between the first cover member and the second cover member.

さらに、特許文献１に記載の技術では、第１のカバー部材と第２のカバー部材との係合箇所が、洗濯槽の径方向外側に突出している。したがって、前記した係合箇所と、洗濯槽の内周面との間の通水空間の幅（径方向の幅）が狭くなるため、洗濯水の循環流量の低下を招く可能性がある。 Furthermore, in the technique described in Patent Document 1, the engagement portion between the first cover member and the second cover member projects outward in the radial direction of the washing tub. Therefore, the width (radial width) of the water passage space between the above-mentioned engagement portion and the inner peripheral surface of the washing tub becomes narrow, which may lead to a decrease in the circulation flow rate of the washing water.

そこで、本発明は、簡素な構成で洗濯水を適切に循環させる洗濯機を提供することを課題とする。 Therefore, an object of the present invention is to provide a washing machine that appropriately circulates washing water with a simple configuration.

前記した課題を解決するために、本発明に係る洗濯機は、有底円筒状の洗濯槽と、前記洗濯槽の底部に設置される撹拌翼と、前記洗濯槽の内周面に設置され、前記撹拌翼の回転に伴って押し流される洗濯水を上方に導いて吐出させる板状の一対の第１循環流路部材と、前記洗濯槽の内周面において、一対の前記第１循環流路部材とは周方向で異なる位置に設置される少なくとも一つの第２循環流路部材と、を含んで構成され、前記洗濯槽は、径方向内側に突出する凸状部を、当該洗濯槽の周壁の縁付近に備え、前記凸状部は、前記洗濯槽の軸方向において前記周壁の縁に近いほど、前記洗濯槽の中心軸との径方向の距離が短くなるように傾斜している第１傾斜面を有し、一対の前記第１循環流路部材の吐出側は、それぞれ、前記洗濯槽の軸方向に延びており、一対の前記第１循環流路部材の吐出側の先端は、それぞれ、前記凸状部の付近に位置し、一対の前記第１循環流路部材と前記洗濯槽の内周面との間の隙間である第１循環流路は、それぞれ、その吐出側が開放されており、前記洗濯槽の前記中心軸を基準として、一対の前記第１循環流路部材が対向しており、前記第２循環流路部材は、前記洗濯槽の内周面に設置される板状の基部と、前記基部の開口に装着され、複数の孔にリントフィルタが貼り付けられてなる糸屑捕集部と、を有し、前記基部は、その下端付近以外の縁部が前記洗濯槽の内周面に密着しており、前記基部の下端付近と前記洗濯槽の内周面との間の隙間を介して流れる洗濯水を吐出する吐出口が、前記糸屑捕集部において複数の前記孔の上側に設けられていることを特徴とする。 In order to solve the above-mentioned problems, the washing machine according to the present invention has a bottomed cylindrical washing tub, a stirring blade installed at the bottom of the washing tub, and an inner peripheral surface of the washing tub, A pair of plate-shaped first circulation flow path members for guiding and discharging the washing water pushed up by the rotation of the stirring blade, and a pair of the first circulation flow path members on the inner peripheral surface of the washing tub. And at least one second circulation flow path member installed at a different position in the circumferential direction, and the washing tub has a convex portion protruding inward in the radial direction of the circumferential wall of the washing tub. Provided near the edge, the convex portion is inclined such that the closer to the edge of the peripheral wall in the axial direction of the washing tub, the shorter the radial distance from the central axis of the washing tub is. has a surface, the discharge side of the pair of the first circulation channel members each extend in the axial direction of the washing tub, the discharge side of the pair of the first circulation flow channel member tip, respectively, The first circulation channel, which is located near the convex portion and is a gap between the pair of first circulation channel members and the inner peripheral surface of the washing tub, is open on the discharge side. The pair of first circulation flow path members are opposed to each other with respect to the central axis of the washing tub, and the second circulation flow path member is a plate-shaped member installed on the inner peripheral surface of the washing tub. It has a base and a thread waste collecting part which is attached to the opening of the base and has a lint filter attached to a plurality of holes, and the base has an edge portion other than near the lower end of the washing tub. A plurality of discharge ports, which are in close contact with the inner peripheral surface and discharge the washing water flowing through the gap between the lower end of the base portion and the inner peripheral surface of the washing tub, are provided in the lint collecting portion. It is characterized in that it is provided above the hole .

本発明によれば、簡素な構成で洗濯水を適切に循環させる洗濯機を提供できる。 According to the present invention, it is possible to provide a washing machine that appropriately circulates washing water with a simple configuration.

本発明の実施形態に係る洗濯機の内部構成を示す概略図である。It is the schematic which shows the internal structure of the washing machine which concerns on embodiment of this invention. 本発明の実施形態に係る洗濯機が備える洗濯槽等の縦断面図である。It is a longitudinal section of a washing tub etc. with which a washing machine concerning an embodiment of the present invention is equipped. 本発明の実施形態に係る洗濯機が備える洗濯槽等の縦断面図である。It is a longitudinal section of a washing tub etc. with which a washing machine concerning an embodiment of the present invention is equipped. 図３Ａに示す破線Ｊの範囲の部分拡大図である。It is a partially expanded view of the range of the broken line J shown in FIG. 3A. 本発明の実施形態に係る洗濯機が備える攪拌翼の裏側を示す斜視図である。It is a perspective view which shows the back side of the stirring blade with which the washing machine which concerns on embodiment of this invention is equipped. 本発明の実施形態に係る洗濯機の循環流路の流入口と、外周側リブ・内周側リブと、の位置関係を示す縦断面図である。It is a longitudinal cross-sectional view which shows the positional relationship of the inflow port of the circulation flow path of the washing machine which concerns on embodiment of this invention, an outer peripheral side rib, and an inner peripheral side rib. 本発明の実施形態に係る洗濯機において、循環流路を介した洗濯水の流れを示す縦断面図である。In the washing machine according to the embodiment of the present invention, it is a vertical cross-sectional view showing the flow of washing water through the circulation flow path. 比較例に係る洗濯機において、循環流路を介した洗濯水の流れを示す縦断面図である。In the washing machine according to the comparative example, it is a vertical cross-sectional view showing the flow of washing water through the circulation flow path. 本発明の実施形態に係る洗濯機の洗濯槽において、洗濯水が散水される範囲を示す平面図である。It is a top view showing the range where washing water is sprinkled in the washing tub of the washing machine concerning the embodiment of the present invention. 図６Ｂの比較例に係る洗濯機の洗濯槽において、洗濯水が散水される範囲を示す平面図である。FIG. 7 is a plan view showing a range in which washing water is sprinkled in the washing tub of the washing machine according to the comparative example of FIG. 6B.

以下では、一例として、洗濯・すすぎ・脱水を行う洗濯機１００（いわゆる全自動洗濯機：図１参照）について説明する。 Hereinafter, as an example, a washing machine 100 (so-called fully automatic washing machine: see FIG. 1) that performs washing, rinsing, and dehydration will be described.

≪実施形態≫
図１は、実施形態に係る洗濯機１００の内部構成を示す概略図である。
図１に示す洗濯機１００は、衣類の洗濯等を行う機器であり、主に、洗濯槽１０と、撹拌翼２０と、外槽３０と、駆動装置４０と、コントロールユニット５０と、バランスリング６０（流体バランサ）と、循環流路部材７０，８０と、外枠９０と、を備えている。なお、図１では、他方の循環流路部材８０（図３Ａ参照）については図示していない。 <<Embodiment>>
FIG. 1 is a schematic diagram showing an internal configuration of a washing machine 100 according to the embodiment.
A washing machine 100 shown in FIG. 1 is a device for washing clothes and the like, and mainly includes a washing tub 10, a stirring blade 20, an outer tub 30, a drive device 40, a control unit 50, and a balance ring 60. A (fluid balancer), circulation flow path members 70 and 80, and an outer frame 90 are provided. Note that FIG. 1 does not show the other circulation flow path member 80 (see FIG. 3A).

洗濯槽１０は、洗濯物Ｒを収容するものであり、有底円筒状を呈している。洗濯槽１０は、円筒状の胴板１１（洗濯槽１０の周壁）と、この胴板１１の下部を塞ぐ底板１２と、を備えている。胴板１１には、洗濯槽１０の回転に伴う遠心力によって、洗濯物Ｒに含まれている洗濯水を脱水するための脱水孔ｈ１が複数設けられている（図１では、その一部を図示）。 The washing tub 10 accommodates the laundry R and has a cylindrical shape with a bottom. The washing tub 10 includes a cylindrical body plate 11 (a peripheral wall of the washing tub 10) and a bottom plate 12 that closes a lower portion of the body plate 11. The body plate 11 is provided with a plurality of dewatering holes h1 for dewatering the washing water contained in the laundry R by the centrifugal force generated by the rotation of the washing tub 10 (in FIG. 1, a part of the dewatering holes h1 is provided). (Shown).

撹拌翼２０（脈動翼盤、パルセータともいう）は、略円盤状を呈し、洗濯槽１０の底部に設置されている。また、撹拌翼２０は、駆動装置４０によって回転可能に軸支されている。そして、洗い時やすすぎ時には撹拌翼２０を回転させることによって、洗濯水とともに洗濯物Ｒが攪拌されるようになっている。 The stirring blade 20 (also referred to as a pulsating blade or a pulsator) has a substantially disc shape and is installed at the bottom of the washing tub 10. The stirring blade 20 is rotatably supported by a drive device 40. By rotating the stirring blade 20 during washing and rinsing, the laundry R is agitated together with the washing water.

外槽３０は、有底円筒状を呈し、洗濯槽１０を同軸上（つまり、その中心軸が略同一の状態）で内包している。外槽３０は、コイルバネや弾性ゴム等の防振装置Ｇを介して、外枠９０の上端付近から吊り下げられている。外槽３０の底部には、洗濯水を排水するための排水口ｈａが設けられている。この排水口ｈａは、排水弁Ｖ１を介して排水ホースＨ１に接続されている。 The outer tub 30 has a cylindrical shape with a bottom, and includes the washing tub 10 coaxially (that is, the central axes thereof are substantially the same). The outer tub 30 is suspended from the vicinity of the upper end of the outer frame 90 via a vibration isolator G such as a coil spring or elastic rubber. A drain port ha for draining the wash water is provided at the bottom of the outer tub 30. The drain port ha is connected to the drain hose H1 via the drain valve V1.

駆動装置４０は、撹拌翼２０を回転させるモータや減速機構の他、図示はしないが、クラッチを備え、取付けベースＢを介して外槽３０の底部外側に取り付けられている。そして、洗濯時やすすぎ時には、前記したモータの回転がクラッチを介して撹拌翼２０に伝達され、洗濯槽１０を静止させた状態で撹拌翼２０が正逆回転するようになっている。また、脱水時には、モータの駆動によって、洗濯槽１０及び撹拌翼２０が一体で高速回転するようになっている。 The drive device 40 is provided with a clutch (not shown) in addition to a motor and a speed reduction mechanism for rotating the stirring blade 20, and is attached to the outer bottom of the outer tub 30 via the attachment base B. When washing or rinsing, the rotation of the motor is transmitted to the stirring blade 20 via the clutch, and the stirring blade 20 rotates in the normal and reverse directions with the washing tub 10 kept stationary. Further, at the time of dehydration, the washing tub 10 and the stirring blade 20 are integrally rotated at high speed by driving the motor.

コントロールユニット５０は、駆動装置４０等の機器を制御する機能を有し、外枠９０の上部に設置されている。
バランスリング６０は、内部に流体（塩水等）が封入されている外形環状の流体バランサである。バランスリング６０は、洗濯槽１０の回転時に洗濯物Ｒの偏り等によって偏心が生じたとき、前記した流体の移動によって偏心を打ち消し、回転のバランスを維持する機能を有している。 The control unit 50 has a function of controlling devices such as the drive device 40, and is installed above the outer frame 90.
The balance ring 60 is an external annular fluid balancer in which a fluid (such as salt water) is enclosed. The balance ring 60 has a function of canceling the eccentricity due to the movement of the fluid and maintaining the balance of rotation when the eccentricity is generated due to the deviation of the laundry R during the rotation of the washing tub 10.

循環流路部材７０は、撹拌翼２０の回転に伴って押し流される洗濯水を上方に導いて吐出させる板状の部材であり、洗濯槽１０の胴板１１の内周面に設置されている。なお、循環流路部材７０の詳細については後記する。 The circulation flow path member 70 is a plate-shaped member that guides and discharges the washing water that is swept along with the rotation of the stirring blade 20, and is installed on the inner peripheral surface of the body plate 11 of the washing tub 10. The details of the circulation flow path member 70 will be described later.

外枠９０は、前記した各部材等を収容する筺体であり、箱状を呈している。外枠９０は、その下部にベース部材９１を備え、また、上部には上面カバー９２を備えている。上面カバー９２の中央部には、洗濯物Ｒを出し入れするための洗濯物投入口ｈｂが設けられ、この洗濯物投入口ｈｂには、開閉可能な蓋体９３が設置されている。 The outer frame 90 is a housing that houses the above-described members and the like, and has a box shape. The outer frame 90 is provided with a base member 91 at its lower portion and an upper surface cover 92 at its upper portion. A laundry loading port hb for loading and unloading the laundry R is provided at the center of the top cover 92, and an openable/closable lid 93 is installed in the laundry loading port hb.

また、洗濯槽１０の外周面と外槽３０の内周面との間には隙間が存在している。この隙間に洗濯物Ｒが入り込まないように、前記した隙間を上から覆う槽カバーＣが設置されている。その他、洗濯機１００は、給水ホースＨ２や電磁給水弁Ｖ２の他、感圧式の水位センサＳ等を備えている。 Further, there is a gap between the outer peripheral surface of the washing tub 10 and the inner peripheral surface of the outer tub 30. In order to prevent the laundry R from entering the gap, a tub cover C is installed to cover the gap from above. In addition, the washing machine 100 includes a water supply hose H2, an electromagnetic water supply valve V2, a pressure-sensitive water level sensor S, and the like.

例えば、洗濯やすすぎが行われる際には、コントロールユニット５０の指令によって電磁給水弁Ｖ２が開かれ、給水ホースＨ２を介して外槽３０内に洗濯水が給水される。そして、水位センサＳの検出値に基づいて所定の水位になったことが検知されると、コントロールユニット５０によって電磁給水弁Ｖ２が閉められ、給水が停止される。また、脱水が行われる際には、コントロールユニット５０によって排水弁Ｖ１が開かれ、外槽３０内の洗濯水が排水ホースＨ１を介して排出される。 For example, when washing or rinsing is performed, the electromagnetic water supply valve V2 is opened according to a command from the control unit 50, and the wash water is supplied into the outer tub 30 via the water supply hose H2. When it is detected that the water level has reached a predetermined level based on the detection value of the water level sensor S, the control unit 50 closes the electromagnetic water supply valve V2 and stops the water supply. Further, when dehydration is performed, the drain valve V1 is opened by the control unit 50, and the wash water in the outer tub 30 is drained via the drain hose H1.

図２は、実施形態に係る洗濯機１００が備える洗濯槽１０等の縦断面図である。なお、図２では脱水孔ｈ１（図１参照）の図示を省略している。
図２に示す底板１２は、胴板１１の下部を塞ぐ皿状の部材であり、胴板１１の下端に固定されている。底板１２は、洗濯槽１０の底面を構成する底部１２ａと、この底部１２ａの外周縁から上側に延びて、洗濯槽１０の側面の一部を構成する側部１２ｂと、を備えている。なお、底部１２ａには、外槽３０側に連通する孔ｈｃが複数設けられている。 FIG. 2 is a vertical cross-sectional view of the washing tub 10 and the like included in the washing machine 100 according to the embodiment. In FIG. 2, the dehydration hole h1 (see FIG. 1) is omitted.
The bottom plate 12 shown in FIG. 2 is a dish-shaped member that closes the lower part of the body plate 11, and is fixed to the lower end of the body plate 11. The bottom plate 12 includes a bottom portion 12a that forms a bottom surface of the washing tub 10 and a side portion 12b that extends upward from an outer peripheral edge of the bottom portion 12a and forms a part of a side surface of the washing tub 10. The bottom portion 12a is provided with a plurality of holes hc communicating with the outer tank 30 side.

撹拌翼２０は、底板１２を覆う略円盤状の部材である。撹拌翼２０は、径方向の中心付近が上側に盛り上がるように形成され、また、周縁付近が周方向に沿って上下に波打つように湾曲している。撹拌翼２０には、孔ｈｄの他、円形のディンプル部２１や径方向に延びる突条部２２が複数設けられている。 The stirring blade 20 is a substantially disc-shaped member that covers the bottom plate 12. The stirring blade 20 is formed such that the vicinity of the center in the radial direction rises upward, and the vicinity of the peripheral edge is curved so as to undulate vertically along the circumferential direction. In addition to the holes hd, the stirring blade 20 is provided with a plurality of circular dimple portions 21 and a plurality of ridge portions 22 extending in the radial direction.

胴板１１の内周面に設置される循環流路部材７０は、前記したように、撹拌翼２０の回転に伴って押し流される洗濯水を上方に導いて吐出させる部材である。循環流路部材７０は、縦方向に細長い板状を呈しており、横断面視において、胴板１１の内周面とは反対側に湾曲している。 As described above, the circulation flow path member 70 installed on the inner peripheral surface of the body plate 11 is a member that guides and discharges the wash water that is swept along with the rotation of the stirring blade 20 upward. The circulation flow path member 70 has a plate shape elongated in the vertical direction, and is curved on the side opposite to the inner peripheral surface of the body plate 11 in a cross-sectional view.

循環流路部材７０の裏面には、図示はしないが、縦方向に延びる一対のリブが、循環流路部材７０の周方向の両端付近に設けられている。そして、循環流路部材７０をネジ止めによって胴板１１に固定する際、前記したリブが胴板１１に突き当てられて撓み、胴板１１に密着するようになっている。これによって、循環流路部材７０の周方向の両端付近を胴板１１の内周面に密着させることができる。 Although not shown, a pair of longitudinally extending ribs are provided on the back surface of the circulation flow path member 70 near both ends in the circumferential direction of the circulation flow path member 70. Then, when the circulation flow path member 70 is fixed to the body plate 11 by screwing, the ribs are abutted against the body plate 11 to bend and closely contact the body plate 11. Thereby, the vicinity of both ends of the circulation flow path member 70 in the circumferential direction can be brought into close contact with the inner peripheral surface of the body plate 11.

また、循環流路部材７０の下端・上端は、胴板１１に密着することなく開口している。そして、循環流路部材７０の裏面と、胴板１１の内周面と、の間の隙間（以下、「循環流路Ｐ」という：図１参照）を介して、撹拌翼２０の回転によって洗濯水が上向きに揚水されるようになっている。つまり、循環流路Ｐを介して洗濯槽１０の底部から上部に洗濯水が押し上げられ、さらに吐出口ｈｅを介して、洗濯槽１０の内部に洗濯水が戻されるようになっている。なお、本実施形態では、洗濯槽１０の中心軸Ｏを基準として相互に対向するように、一対の循環流路部材７０が設置されている（図７Ａ参照）。 Further, the lower end and the upper end of the circulation flow path member 70 are open without being in close contact with the body plate 11. Then, washing is performed by rotation of the stirring blade 20 through a gap (hereinafter, referred to as “circulation channel P”: see FIG. 1) between the back surface of the circulation channel member 70 and the inner peripheral surface of the body plate 11. The water is pumped upwards. In other words, the washing water is pushed up from the bottom of the washing tub 10 to the upper portion through the circulation flow path P, and further returned to the inside of the washing tub 10 through the discharge port he. In addition, in this embodiment, a pair of circulation flow path members 70 are installed so as to face each other with the central axis O of the washing tub 10 as a reference (see FIG. 7A ).

また、循環流路部材７０に対して周方向で９０°の間隔を設けて、別種類の循環流路部材８０が胴板１１の内周面に設置されている。この循環流路部材８０について、図３Ａを用いて説明する。 Further, another type of circulation flow channel member 80 is installed on the inner peripheral surface of the body plate 11 with a space of 90° in the circumferential direction with respect to the circulation flow channel member 70. The circulation flow path member 80 will be described with reference to FIG. 3A.

図３Ａは、実施形態に係る洗濯機１００が備える洗濯槽１０等の縦断面図である。なお、図３Ａでは、撹拌翼２０を取り外した状態の洗濯槽１０において、循環流路部材８０を正面から見た縦断面図を示している。
図３Ａに示すように、循環流路部材８０は、基部８１と、糸屑捕集部８２と、を備えている。基部８１は、その上端付近及び周方向の両端付近が、胴板１１の内周面に密着している板状部材である。基部８１は、図示はしないが、糸屑捕集部８２に対応する形状の開口を有している。また、基部８１の下端付近には、撹拌翼２０の回転によって押し流された洗濯水を導き入れるための流入口ｈｆが設けられている。 FIG. 3A is a vertical cross-sectional view of the washing tub 10 and the like included in the washing machine 100 according to the embodiment. Note that FIG. 3A shows a vertical cross-sectional view of the circulation flow path member 80 as seen from the front in the washing tub 10 with the stirring blade 20 removed.
As shown in FIG. 3A, the circulation flow path member 80 includes a base portion 81 and a yarn waste collecting portion 82. The base portion 81 is a plate-shaped member in which the vicinity of the upper end and the vicinity of both ends in the circumferential direction are in close contact with the inner peripheral surface of the body plate 11. Although not shown, the base portion 81 has an opening having a shape corresponding to the yarn waste collecting portion 82. Further, near the lower end of the base 81, an inflow port hf for introducing the wash water swept away by the rotation of the stirring blade 20 is provided.

糸屑捕集部８２は、糸屑等を捕集するための着脱式の部材であり、前記した基部８１の開口（図示せず）に装着されている。糸屑捕集部８２には、複数の孔ｈｇが設けられ、これらの孔ｈｇの領域にリントフィルタ（図示せず）が貼り付けられている。また、複数の孔ｈｇの上側には、洗濯水を吐出するための吐出口ｈｉが設けられている。 The lint collecting portion 82 is a detachable member for collecting lint and the like, and is attached to the opening (not shown) of the base 81. A plurality of holes hg are provided in the yarn waste collecting portion 82, and a lint filter (not shown) is attached to the regions of these holes hg. A discharge port hi for discharging washing water is provided above the plurality of holes hg.

流入口ｈｆを介して流れ込んだ洗濯水は、循環流路部材８０と胴板１１との間の隙間（以下「循環流路Ｑ」という：図示せず）を介して押し上げられる。そして、前記した循環流路Ｑを洗濯水が流れる過程で、糸屑捕集部８２によって糸屑等が捕集され、さらに、吐出口ｈｉを介して洗濯槽１０内に洗濯水が戻される。 The wash water that has flowed in through the inflow port hf is pushed up through a gap (hereinafter, referred to as “circulation channel Q”: not shown) between the circulation channel member 80 and the body plate 11. Then, while the washing water flows through the circulation flow path Q, the lint collecting portion 82 collects the lint and the like, and the washing water is returned to the washing tub 10 through the discharge port hi.

なお、前記した吐出口ｈｉを糸屑捕集部８２に設けるのではなく、基部８１の上端付近にスリット状の吐出口を設けるようにしてもよい。また、本実施形態では、洗濯槽１０の中心軸Ｏを基準として相互に対向するように、一対の循環流路部材８０，８０が設置されている（図７Ａ参照）。 It should be noted that instead of providing the above-described discharge port hi in the thread waste collecting part 82, a slit-shaped discharge port may be provided near the upper end of the base part 81. Further, in the present embodiment, the pair of circulation flow path members 80, 80 are installed so as to face each other with the central axis O of the washing tub 10 as a reference (see FIG. 7A).

図３Ｂは、図３Ａに示す破線Ｊの範囲の部分拡大図である。
図３Ｂに示すように、洗濯槽１０は、径方向内側に突出する凸状部１１ａを、この洗濯槽１０の周壁の縁１１ｂ（ふち）付近に備えている。なお、洗濯槽１０の周壁の全周に亘って凸状部１１ａが形成され、この凸状部１１ａの上側にバランスリング６０が設置されている。 FIG. 3B is a partially enlarged view of a range of a broken line J shown in FIG. 3A.
As shown in FIG. 3B, the washing tub 10 is provided with a convex portion 11a protruding inward in the radial direction near the edge 11b (edge) of the peripheral wall of the washing tub 10. In addition, the convex portion 11a is formed over the entire circumference of the peripheral wall of the washing tub 10, and the balance ring 60 is installed above the convex portion 11a.

バランスリング６０の設置についてさらに詳しく説明すると、バランスリング６０が凸状部１１ａに載置された状態で、洗濯槽１０の周壁の縁１１ｂ付近が径方向内側に折り曲げられる。このような加締め作業によって、バランスリング６０の外周壁に設けられたリブ６１の上面に、前記した縁１１ｂ付近を密着させるようになっている。
なお、凸状部１１ａは、脱水時において洗濯槽１０が遠心力で径方向外側に変形することを抑制し、その強度を確保する機能も有している。 The installation of the balance ring 60 will be described in more detail. With the balance ring 60 placed on the convex portion 11a, the vicinity of the edge 11b of the peripheral wall of the washing tub 10 is bent radially inward. By such caulking work, the vicinity of the edge 11b is brought into close contact with the upper surface of the rib 61 provided on the outer peripheral wall of the balance ring 60.
The convex portion 11a also has a function of preventing the washing tub 10 from being radially outwardly deformed by centrifugal force during dehydration and ensuring its strength.

図３Ｂに示すように、凸状部１１ａは、第１傾斜面Ｋ１を有している。第１傾斜面Ｋ１は、洗濯槽１０の軸方向において周壁の縁１１ｂに近いほど（つまり、その高さが高いほど）、洗濯槽１０の中心軸Ｏ（図３Ａ参照）との径方向の距離が短くなるように傾斜している。この第１傾斜面Ｋ１は、循環流路Ｐを介して上向きに押し上げられる洗濯水を、斜め方向に導く（洗濯水が上昇するにつれて径方向内側に向かうようにする）ための傾斜面である。 As shown in FIG. 3B, the convex portion 11a has a first inclined surface K1. The closer the first inclined surface K1 is to the edge 11b of the peripheral wall in the axial direction of the washing tub 10 (that is, the higher its height), the radial distance from the central axis O (see FIG. 3A) of the washing tub 10. Is inclined to be short. The first inclined surface K1 is an inclined surface for guiding the washing water pushed upward through the circulation flow path P in an oblique direction (so that the washing water goes radially inward as the washing water rises).

また、循環流路部材７０の吐出側は、洗濯槽１０の軸方向（図３Ｂでは、鉛直方向）に延びている。したがって、例えば、循環流路部材７０の吐出口ｈｅ付近を径方向内側に折り曲げる構成（図６Ｂの比較例を参照）に比べて、洗濯水の循環流量の低下を抑制できる。 The discharge side of the circulation flow path member 70 extends in the axial direction of the washing tub 10 (vertical direction in FIG. 3B). Therefore, compared with, for example, a configuration in which the vicinity of the discharge port he of the circulation flow path member 70 is bent inward in the radial direction (see the comparative example of FIG. 6B), it is possible to suppress a decrease in the circulation flow rate of the wash water.

また、図３Ｂの横方向の破線で示すように、循環流路部材７０の吐出側の先端７０ａは、洗濯槽１０の凸状部１１ａの付近（図３Ｂに示す例では、凸状部１１ａの先端よりも若干下側）まで延びている。これによって、洗濯水の循環流量の低下を抑制しつつ、凸状部１１ａの第１傾斜面Ｋ１と平行な方向に洗濯水を導くことができる。 3B, the tip 70a on the discharge side of the circulation flow path member 70 is near the convex portion 11a of the washing tub 10 (in the example shown in FIG. 3B, the convex portion 11a A little below the tip). As a result, it is possible to guide the washing water in a direction parallel to the first inclined surface K1 of the convex portion 11a while suppressing a decrease in the circulation flow rate of the washing water.

なお、循環流路部材７０の吐出側の先端７０ａが、凸状部１１ａに対して所定距離以上下側に位置していると、洗濯水が凸状部１１ａに達する前に循環流路部材７０から流れ落ちる可能性が高くなる。
一方、循環流路部材７０の吐出側の先端７０ａが、凸状部１１ａに対して所定距離以上上側に位置していると、バランスリング６０と循環流路部材７０の先端７０ａとの距離が短くなり過ぎて流路抵抗が大きくなり、洗濯水の循環流量の低下を招く。したがって、前記したように、循環流路部材７０の吐出側の先端７０ａは、凸状部１１ａの付近に位置していることが望ましい。 If the tip 70a on the discharge side of the circulation flow path member 70 is located below the convex portion 11a by a predetermined distance or more, the circulation flow passage member 70 before the washing water reaches the convex portion 11a. More likely to run off.
On the other hand, when the discharge-side tip 70a of the circulation flow path member 70 is positioned above the convex portion 11a by a predetermined distance or more, the distance between the balance ring 60 and the tip 70a of the circulation flow path member 70 is short. As a result, the flow resistance becomes too large and the circulation flow rate of the wash water decreases. Therefore, as described above, it is desirable that the discharge-side tip end 70a of the circulation flow path member 70 be located near the convex portion 11a.

また、バランスリング６０は、その内周面の下部において凸状部１１ａの近傍に第２傾斜面Ｋ２を有している。第２傾斜面Ｋ２は、凸状部１１ａの第１傾斜面Ｋ１に沿って斜め方向に流れ出た洗濯水を、さらに略同じ方向に導くための傾斜面である。この第２傾斜面Ｋ２は、凸状部１１ａの第１傾斜面Ｋ１と略面一になっており、凸状部１１ａよりも径方向内側に位置している。
なお、第２傾斜面Ｋ２と、循環流路部材７０の先端７０ａと、の距離Ｌ１は、循環流路Ｐを介して押し上げられた洗濯水の流れを妨げないように適宜設定されている。 Further, the balance ring 60 has a second inclined surface K2 near the convex portion 11a at the lower part of the inner peripheral surface thereof. The second inclined surface K2 is an inclined surface for guiding the wash water flowing in the oblique direction along the first inclined surface K1 of the convex portion 11a in the substantially same direction. The second inclined surface K2 is substantially flush with the first inclined surface K1 of the convex portion 11a, and is located radially inward of the convex portion 11a.
The distance L1 between the second inclined surface K2 and the tip 70a of the circulation flow path member 70 is appropriately set so as not to impede the flow of washing water pushed up through the circulation flow path P.

また、図３Ｂの縦方向の破線で示すように、第２傾斜面Ｋ２は、縦断面視（洗濯槽１０の中心軸Ｏを含む平面での縦断面：図３Ａ参照）において、循環流路部材７０の吐出側の延長線上に存在している。これによって、所定の流量で上向きに押し上げられた洗濯水が、第２傾斜面Ｋ２に沿って吐出されるようになっている。 In addition, as shown by a broken line in the vertical direction of FIG. 3B, the second inclined surface K2 has a circulation flow path member in a vertical cross-sectional view (a vertical cross-section in a plane including the central axis O of the washing tub 10: see FIG. 3A). It exists on the extension line of the discharge side of 70. As a result, the washing water pushed upward at a predetermined flow rate is discharged along the second inclined surface K2.

さらに、バランスリング６０は、洗濯水を自身に当てて拡散させる拡散面Ｋ３を、第２傾斜面Ｋ２よりも径方向内側に有している。図３Ｂに示す例では、拡散面Ｋ３が、洗濯槽１０の中心軸Ｏに対して垂直な平面（つまり、水平な面）になっている。これによって、第１傾斜面Ｋ１及び第２傾斜面Ｋ２に沿って流れ出た洗濯水を拡散面Ｋ３に衝突させ、洗濯槽１０内の広範囲に亘って洗濯水を拡散させることができる。 Further, the balance ring 60 has a diffusing surface K3 for applying and diffusing the wash water to the inner side of the second inclined surface K2 in the radial direction. In the example shown in FIG. 3B, the diffusion surface K3 is a flat surface (that is, a horizontal surface) perpendicular to the central axis O of the washing tub 10. As a result, the wash water flowing along the first inclined surface K1 and the second inclined surface K2 can be made to collide with the diffusion surface K3, and the washing water can be diffused over a wide range in the washing tub 10.

図４は、洗濯機１００が備える撹拌翼２０の裏側を示す斜視図である。
図４に示すように、撹拌翼２０は、中心軸Ｏから径方向に放射状に延びる複数の裏羽根２３を、その裏面（下面）に有している。裏羽根２３は、周方向において等角度の間隔で配置されている。 FIG. 4 is a perspective view showing the back side of the stirring blade 20 included in the washing machine 100.
As shown in FIG. 4, the stirring blade 20 has a plurality of back blades 23 radially extending from the central axis O in the radial direction on the back surface (lower surface) thereof. The back blades 23 are arranged at equal angular intervals in the circumferential direction.

より詳しく説明すると、撹拌翼２０の上方（撹拌翼２０の裏側を示す図４では下方）に盛り上がった２つの領域の裏面に、裏羽根群２３Ａ，２３Ａが形成されている。それぞれの裏羽根群２３Ａは、５枚の裏羽根２３で構成され、周方向において約９０度の角度範囲に配置されている。裏羽根群２３Ａは、循環させる洗濯水を取り込む機能や、撹拌翼２０の撓み変形を抑制する機能を有している。 More specifically, back blade groups 23A and 23A are formed on the back surfaces of the two regions that are raised above the stirring blade 20 (downward in FIG. 4 showing the back side of the stirring blade 20). Each back blade group 23A is composed of five back blades 23 and is arranged in an angular range of about 90 degrees in the circumferential direction. The back blade group 23A has a function of taking in circulating wash water and a function of suppressing bending deformation of the stirring blade 20.

裏羽根群２３Ａ，２３Ａの間には、別の裏羽根群２３Ｂ，２３Ｂが設けられている。これらの裏羽根群２３Ｂ，２３Ｂは、撹拌翼２０の下方（撹拌翼２０の裏側を示す図４では上方）に凹んでいる２つの領域の裏面に形成されている。裏羽根群２３Ｂは、３枚の裏羽根２３で構成され、撹拌翼２０の撓み変形を抑制する機能を有している。 Another back blade group 23B, 23B is provided between the back blade groups 23A, 23A. These back blade groups 23B, 23B are formed on the back surface of two regions which are recessed below the stirring blade 20 (upper side in FIG. 4 showing the back side of the stirring blade 20). The back blade group 23B is composed of three back blades 23 and has a function of suppressing flexural deformation of the stirring blade 20.

撹拌翼２０の裏面の中心付近には、中心軸Ｏと同心円状に形成される３つの円環リブ２４が形成されている。これらの円環リブ２４は、裏羽根群２３Ａ，２３Ａ，２３Ｂ，２３Ｂを補強する機能を有している。 Near the center of the back surface of the stirring blade 20, three annular ribs 24 formed concentrically with the central axis O are formed. These annular ribs 24 have a function of reinforcing the back blade groups 23A, 23A, 23B, 23B.

さらに、撹拌翼２０の裏面には、周方向に延びる外周側リブ２５及び内周側リブ２６，２７が、径方向に所定間隔を設けて形成されている。外周側リブ２５および内周側リブ２６，２７は、それぞれ撹拌翼２０の曲率と略同じ曲率で湾曲している。 Further, on the back surface of the stirring blade 20, outer peripheral ribs 25 and inner peripheral ribs 26, 27 extending in the circumferential direction are formed at predetermined intervals in the radial direction. The outer peripheral ribs 25 and the inner peripheral ribs 26, 27 are each curved with a curvature substantially the same as that of the stirring blade 20.

外周側リブ２５は、撹拌翼２０の外周側に位置する周方向リブである。外周側リブ２５は、裏羽根群２３Ａの周方向の一端の裏羽根２３から他端の裏羽根２３にかけて延びており、これらの裏羽根２３と一体形成されている。 The outer peripheral ribs 25 are circumferential ribs located on the outer peripheral side of the stirring blade 20. The outer peripheral rib 25 extends from the back blade 23 at one end in the circumferential direction of the back blade group 23A to the back blade 23 at the other end, and is integrally formed with these back blades 23.

内周側リブ２６，２７は、外周側リブ２５よりも内周側に位置する周方向リブである。内周側リブ２６，２７は、裏羽根群２３Ａの５枚の裏羽根２３のうち、中央の３枚の裏羽根２３と一体形成されている。 The inner peripheral ribs 26, 27 are circumferential ribs located on the inner peripheral side of the outer peripheral rib 25. The inner peripheral ribs 26, 27 are integrally formed with the central three back blades 23 of the five back blades 23 of the back blade group 23A.

図５は、洗濯機１００の循環流路Ｐの流入口ｈｊと、外周側リブ２５・内周側リブ２６，２７と、の位置関係を示す縦断面図である。なお、図５は、裏羽根群２３Ａ（図４参照）の５枚の裏羽根２３に含まれる中央の裏羽根２３を正面から見た縦断面図を示している。 FIG. 5 is a vertical cross-sectional view showing the positional relationship between the inlet hj of the circulation flow path P of the washing machine 100 and the outer peripheral ribs 25 and the inner peripheral ribs 26, 27. Note that FIG. 5 shows a vertical cross-sectional view of the central back blade 23 included in the five back blades 23 of the back blade group 23A (see FIG. 4) as seen from the front.

循環流路部材７０の下側（洗濯槽１０の底付近）には、洗濯水を循環流路Ｐに導く流入口ｈｊが設けられている。また、洗濯槽１０の内底部と、撹拌翼２０の裏羽根２３と、の間の隙間がポンプ室Ｍになっている。そして、ポンプ室Ｍを介して径方向外向きに押し流された洗濯水が、流入口ｈｊ及び循環流路Ｐを介して上向きに揚水されるようになっている。 An inlet hj that guides the wash water to the circulation flow path P is provided below the circulation flow path member 70 (near the bottom of the washing tub 10). A gap between the inner bottom portion of the washing tub 10 and the back blade 23 of the stirring blade 20 is a pump chamber M. Then, the wash water that is pushed outward in the radial direction through the pump chamber M is pumped upward through the inflow port hj and the circulation flow path P.

撹拌翼２０の外周縁部には、流入口ｈｊに向けて下側に延びる垂下部２８が形成されている。また、垂下部２８と循環流路部材７０との間には所定の隙間ｈｋが設けられている。この隙間ｈｋの寸法は、撹拌翼２０が循環流路部材７０に接触しない程度の距離に設定されている。 At the outer peripheral edge of the stirring blade 20, a hanging portion 28 extending downward toward the inflow port hj is formed. Further, a predetermined gap hk is provided between the hanging portion 28 and the circulation flow path member 70. The size of the gap hk is set to such a distance that the stirring blade 20 does not contact the circulation flow path member 70.

このように構成された洗濯機１００に洗濯物Ｒ（図１参照）が投入された状態で、電源スイッチ（図示せず）がオンに切り替えられ、さらにスタートスイッチ（図示せず）が押されると、コントロールユニット５０（図１参照）によって各機器が制御される。すなわち、電磁給水弁Ｖ２（図１参照）が制御されて所定水位まで給水され、洗濯工程に移行する。洗濯工程では、駆動装置４０（図１参照）によって撹拌翼２０が、例えば、右回転・休止・左回転・休止の順で回転する。これによって、洗濯水とともに洗濯物Ｒが撹拌され、洗濯物Ｒが洗浄されるようになっている。 When the laundry R (see FIG. 1) is put into the washing machine 100 configured as described above, a power switch (not shown) is turned on, and a start switch (not shown) is pressed. The control unit 50 (see FIG. 1) controls each device. That is, the electromagnetic water supply valve V2 (see FIG. 1) is controlled to supply water up to a predetermined water level, and the process proceeds to the washing process. In the washing process, the drive device 40 (see FIG. 1) causes the stirring blade 20 to rotate, for example, in the order of right rotation/pause/left rotation/pause. As a result, the laundry R is agitated together with the wash water so that the laundry R can be washed.

＜作用・効果＞
図６Ａは、実施形態に係る洗濯機１００において、循環流路Ｐを介した洗濯水の流れを示す縦断面図である。なお、白抜き矢印の大小は、循環流路Ｐを流れる洗濯水の流量の大小を示している（図６Ｂも同様）。
循環流路Ｐを介して上昇する洗濯水は、吐出口ｈｅ付近において、凸状部１１ａの第１傾斜面Ｋ１、及びバランスリング６０の第２傾斜面Ｋ２に沿って、斜め方向（洗濯水が上昇するにつれて、径方向内側に向かう方向）に導かれる。そして、バランスリング６０の拡散面Ｋ３に洗濯水が衝突することによって洗濯水が径方向内側に向かい、平面視において洗濯槽１０内の広範囲に洗濯水が散水される。 <Action/effect>
FIG. 6A is a vertical cross-sectional view showing the flow of washing water through the circulation flow path P in the washing machine 100 according to the embodiment. In addition, the size of the white arrow indicates the size of the flow rate of the washing water flowing through the circulation flow path P (the same applies to FIG. 6B).
The washing water that rises through the circulation flow path P is in the diagonal direction (where the washing water is As it rises, it is guided radially inward. Then, the wash water collides with the diffusion surface K3 of the balance ring 60, so that the wash water is directed inward in the radial direction, and the wash water is sprayed over a wide area in the washing tub 10 in a plan view.

前記したように、循環流路部材７０の吐出側は、凸状部１１ａ付近まで軸方向に延びている。つまり、循環流路部材７０の吐出側には、次に説明する比較例のようなつば７１Ａ（図６Ｂ参照）が設けられていない。したがって、循環流路部材７０によって洗濯水の流れが妨げられる（流速が落ちる）ことがほとんどないため、撹拌翼２０（図５参照）の回転速度を上げ過ぎることなく、十分な循環流量を確保できる。 As described above, the discharge side of the circulation flow path member 70 extends in the axial direction up to the vicinity of the convex portion 11a. That is, the discharge side of the circulation flow path member 70 is not provided with the collar 71A (see FIG. 6B) as in the comparative example described below. Therefore, the circulation flow path member 70 hardly interferes with the flow of washing water (the flow velocity decreases), so that a sufficient circulation flow rate can be secured without increasing the rotation speed of the stirring blade 20 (see FIG. 5) too much. .

図６Ｂは、比較例に係る洗濯機において、循環流路Ｐを介した洗濯水の流れを示す縦断面図である。
図６Ｂに示す比較例は、循環流路部材７０Ａの吐出口ｈｍ付近につば７１Ａが設けられている点が、本実施形態（図６Ａ参照）とは異なっている。このつば７１Ａは、循環流路部材７０Ａの吐出側の先端付近が、径方向内側に折り曲げられた部分である。また、比較例は、バランスリング６０Ａの下部に第２傾斜面Ｋ２（図６Ａ参照）が設けられていない点が、本実施形態とは異なっている。 FIG. 6B is a vertical cross-sectional view showing the flow of washing water through the circulation flow path P in the washing machine according to the comparative example.
The comparative example shown in FIG. 6B is different from the present embodiment (see FIG. 6A) in that a collar 71A is provided near the discharge port hm of the circulation flow path member 70A. The flange 71A is a portion in which the vicinity of the discharge-side tip of the circulation flow path member 70A is bent inward in the radial direction. Further, the comparative example is different from the present embodiment in that the second inclined surface K2 (see FIG. 6A) is not provided below the balance ring 60A.

図６Ｂに示す構成では、循環流路Ｐを介して上向きに押し流された洗濯水が、つば７１Ａとバランスリング６０Ａとの間の隙間を介して、径方向内側に向かう。ここで、つば７１Ａとバランスリング６０Ａとの間の隙間は、縦方向の幅が狭くなっており、流路抵抗が比較的大きいため、洗濯水の流量の低下を招く可能性が高い。 In the configuration shown in FIG. 6B, the wash water pushed upward through the circulation flow path P goes radially inward through the gap between the collar 71A and the balance ring 60A. Here, the gap between the brim 71A and the balance ring 60A has a narrow width in the vertical direction, and the flow path resistance is relatively large, so that there is a high possibility that the flow rate of the wash water will decrease.

ちなみに、つば７１Ａの高さを下げると、つば７１Ａとバランスリング６０Ａとの隙間に洗濯水が入り込む可能性が高くなり、また、つば７１Ａに洗濯物Ｒが当たって傷みやすくなる。 By the way, if the height of the brim 71A is lowered, there is a high possibility that washing water will enter the gap between the brim 71A and the balance ring 60A, and the laundry R will easily hit the brim 71A and be damaged.

これに対して図６Ａに示す本実施形態では、循環流路部材７０の吐出側が軸方向に延びているため、循環流路部材７０の先端付近では洗濯水の流路が開放されている。したがって、循環流路部材７０が洗濯水の流れを妨げることはほとんどない。 On the other hand, in the present embodiment shown in FIG. 6A, since the discharge side of the circulation flow path member 70 extends in the axial direction, the wash water flow path is open near the tip of the circulation flow path member 70. Therefore, the circulation flow path member 70 hardly interferes with the flow of washing water.

例えば、図３Ｂに示す距離Ｌ１（循環流路部材７０の先端７０ａと第２傾斜面Ｋ２との距離）が、比較例の図６Ｂに示す距離Ｌ２（つば７１Ａとバランスリング６０Ａとの距離）と同一であり、また、撹拌翼２０（図２参照）の回転速度も同一であったとする。このような場合でも、本実施形態のほうが比較例よりも洗濯水の循環流量が大きくなる。前記したように、循環流路部材７０の先端７０ａ（図３Ｂ参照）の付近では、洗濯水の流路が開放されているからである。 For example, the distance L1 (distance between the tip 70a of the circulation flow path member 70 and the second inclined surface K2) shown in FIG. 3B is equal to the distance L2 (distance between the collar 71A and the balance ring 60A) shown in FIG. 6B of the comparative example. It is assumed that they are the same and that the stirring blades 20 (see FIG. 2) have the same rotation speed. Even in such a case, the circulation flow rate of the wash water is larger in the present embodiment than in the comparative example. This is because, as described above, the flow path of the wash water is open near the tip 70a (see FIG. 3B) of the circulation flow path member 70.

また、凸状部１１ａの第１傾斜面Ｋ１、及び、バランスリング６０の第２傾斜面Ｋ２に沿って洗濯水が押し流され、さらに、バランスリング６０の拡散面Ｋ３に勢いよく衝突する。これによって、平面視で洗濯槽１０内の広い範囲に洗濯水が散水される。 Further, the wash water is washed away along the first inclined surface K1 of the convex portion 11a and the second inclined surface K2 of the balance ring 60, and further violently collides with the diffusion surface K3 of the balance ring 60. As a result, the washing water is sprayed over a wide area in the washing tub 10 in a plan view.

また、本実施形態は、前記した特許文献１のように複雑な構成ではなく、簡素な構成であり、洗濯槽１０、循環流路部材７０、及びバランスリング６０の形状によって、洗濯水を所定の向きに導くようになっている。さらに、洗濯水を所定の向きに導く整流リブ（図示せず）を洗濯槽１０の内周面に別途設ける必要もない。これによって、洗濯機１００の製造に要する手間やコストを低減できる。また、糸屑等が循環流路部材７０の隙間に入り込ことを防止できる。 In addition, the present embodiment has a simple structure, not a complicated structure as in the above-mentioned Patent Document 1, and the washing water is provided in a predetermined amount depending on the shapes of the washing tub 10, the circulation flow path member 70, and the balance ring 60. It is designed to guide you. Further, it is not necessary to separately provide a rectifying rib (not shown) for guiding the washing water in a predetermined direction on the inner peripheral surface of the washing tub 10. This can reduce the labor and cost required for manufacturing the washing machine 100. Further, it is possible to prevent thread waste or the like from entering the gap of the circulation flow path member 70.

図７Ａは、実施形態に係る洗濯機１００の洗濯槽１０において、洗濯水が散水される範囲を示す平面図である。なお、図７Ａでは、バランスリング６０の図示を省略している（図７Ｂも同様）。
前記したように、本実施形態では、洗濯水の流速がほとんど落ちることなく、吐出口ｈｅを介して、洗濯槽１０に洗濯水が散水される。その結果、洗濯水が散水される距離が比較例（図６Ｂ参照）よりも長くなるため、平面視で洗濯槽１０の略全域（斜線部分の領域Ｕ）に亘って洗濯水が散水される。これによって、洗濯物Ｒ（図１参照）の上からシャワーのように洗濯水が散水されるため、洗い時等における洗いムラを低減し、洗濯性能を高めることできる。 FIG. 7A is a plan view showing a range in which washing water is sprayed in the washing tub 10 of the washing machine 100 according to the embodiment. The balance ring 60 is not shown in FIG. 7A (the same applies to FIG. 7B).
As described above, in the present embodiment, the washing water is sprinkled on the washing tub 10 through the discharge port he with almost no decrease in the flow rate of the washing water. As a result, the distance over which the washing water is sprinkled becomes longer than that in the comparative example (see FIG. 6B), so that the washing water is sprinkled over substantially the entire area (hatched area U) of the washing tub 10 in plan view. As a result, the washing water is sprayed from above the laundry R (see FIG. 1) like a shower, so that it is possible to reduce uneven washing during washing and improve the washing performance.

図７Ｂは、図６Ｂの比較例に係る洗濯機の洗濯槽１０Ａにおいて、洗濯水が散水される範囲を示す平面図である。
比較例の構成（図６Ｂ参照）では、前記したように、つば１０２とバランスリング６０Ａの隙間において洗濯水の流速が低下する。その結果、図７Ｂに示すように、平面視において洗濯水が散水されない領域が存在する。具体的には、循環流路部材８０，８０を結ぶ直線状の隙間（斜線部分の領域Ｕ１，Ｕ２の間の隙間）において、洗濯水が散水されない可能性が高い。 FIG. 7B is a plan view showing a range in which washing water is sprinkled in the washing tub 10A of the washing machine according to the comparative example of FIG. 6B.
In the configuration of the comparative example (see FIG. 6B), as described above, the flow velocity of the wash water decreases in the gap between the collar 102 and the balance ring 60A. As a result, as shown in FIG. 7B, there is a region where washing water is not sprayed in plan view. Specifically, there is a high possibility that washing water will not be sprayed in the linear gap connecting the circulation flow path members 80, 80 (the gap between the shaded regions U1, U2).

これに対して本実施形態によれば、前記したように、吐出口ｈｅ（図７Ａ参照）から吐出された洗濯水が、平面視において洗濯槽１０の略全域に散水される。したがって、循環流路Ｐ（図６Ａ参照）を介して洗濯水を適切に循環させることができる。 On the other hand, according to the present embodiment, as described above, the wash water discharged from the discharge port he (see FIG. 7A) is sprayed on substantially the entire area of the washing tub 10 in a plan view. Therefore, the wash water can be appropriately circulated through the circulation flow path P (see FIG. 6A).

≪変形例≫
以上、本発明に係る洗濯機１００について実施形態により説明したが、本発明はこれらの記載に限定されるものではなく、種々の変更を行うことができる。
例えば、実施形態では、バランスリング６０が第２傾斜面Ｋ２（図３Ｂ参照）及び拡散面Ｋ３（図３Ｂ参照）を備える構成について説明したが、これに限らない。すなわち、バランスリング６０が、第２傾斜面Ｋ２及び拡散面Ｋ３のうち一方又は両方を備えない構成であってもよい。このような構成でも、簡素な構成で、循環流路Ｐ（図３Ｂ参照）を介して洗濯水を適切に循環させることができる。また、バランスリング６０に代えて、例えば、円環状の枠体を設けてもよい。 ≪Modification≫
The washing machine 100 according to the present invention has been described above with reference to the embodiments, but the present invention is not limited to these descriptions, and various changes can be made.
For example, in the embodiment, the configuration in which the balance ring 60 includes the second inclined surface K2 (see FIG. 3B) and the diffusion surface K3 (see FIG. 3B) has been described, but the configuration is not limited to this. That is, the balance ring 60 may be configured not to include one or both of the second inclined surface K2 and the diffusion surface K3. Even with such a configuration, the wash water can be appropriately circulated through the circulation flow path P (see FIG. 3B) with a simple configuration. Further, instead of the balance ring 60, for example, an annular frame body may be provided.

また、実施形態では、第１傾斜面Ｋ１、第２傾斜面Ｋ２、及び拡散面Ｋ３が、縦断面視において直線状を呈する構成について説明したが（図３Ｂ参照）、これに限らない。すなわち、第１傾斜面Ｋ１、第２傾斜面Ｋ２、及び拡散面Ｋ３のうち少なくとも一つが、縦断面視において曲線状を呈する構成であってもよい。 Further, in the embodiment, the configuration in which the first inclined surface K1, the second inclined surface K2, and the diffusion surface K3 have a linear shape in the longitudinal sectional view has been described (see FIG. 3B), but the present invention is not limited to this. That is, at least one of the first sloping surface K1, the second sloping surface K2, and the diffusing surface K3 may have a curved shape in a vertical cross-sectional view.

また、実施形態では、縦断面視における循環流路部材７０の吐出側の延長線上に第２傾斜面Ｋ２が存在する構成について説明したが（図３Ｂ参照）、これに限らない。例えば、縦断面視における循環流路部材７０の吐出側の延長線とバランスリング６０との交点が、第２傾斜面Ｋ２よりも径方向内側であってもよい。 Further, in the embodiment, the configuration in which the second inclined surface K2 is present on the extension line on the discharge side of the circulation flow path member 70 in the longitudinal sectional view has been described (see FIG. 3B), but the configuration is not limited to this. For example, the intersection point of the extension line on the discharge side of the circulation flow path member 70 and the balance ring 60 in the vertical cross-sectional view may be radially inward of the second inclined surface K2.

また、前記した実施形態では、２つの循環流路部材７０，７０と、別種類の２つの循環流路部材８０，８０と、を備える構成について説明したが（図７Ａ参照）、これらの各部材の個数を適宜変更してもよい。
また、実施形態では、洗濯・すすぎ・脱水を行う洗濯機１００について説明したが、これに限らない。例えば、洗濯・すすぎ・脱水の他、乾燥も行う洗濯乾燥機にも実施形態を適用できる。 Further, in the above-described embodiment, the configuration including the two circulation flow channel members 70, 70 and the two circulation flow channel members 80, 80 of different types has been described (see FIG. 7A ), but each of these members is described. The number may be changed appropriately.
Moreover, in the embodiment, the washing machine 100 that performs washing, rinsing, and dehydration is described, but the present invention is not limited to this. For example, the embodiment can be applied to a washing/drying machine that also performs drying in addition to washing/rinsing/dehydrating.

また、実施形態は本発明を分かりやすく説明するために詳細に記載したものであり、必ずしも説明した全ての構成を備えるものに限定されない。また、実施形態の構成の一部について、他の構成の追加・削除・置換をすることが可能である。
また、前記した機構や構成は説明上必要と考えられるものを示しており、製品上必ずしも全ての機構や構成を示しているとは限らない。 Further, the embodiments are described in detail for the purpose of explaining the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described. Further, it is possible to add/delete/replace other configurations with respect to a part of the configurations of the embodiment.
Further, the above-mentioned mechanisms and configurations are shown to be necessary for explanation, and not all the mechanisms and configurations are shown in the product.

１００ 洗濯機
１０ 洗濯槽
１１ 胴板（周壁）
１１ａ 凸状部
１１ｂ 縁
１２ 底板
２０ 撹拌翼
３０ 外槽
４０ 駆動装置
５０ コントロールユニット
６０ バランスリング（流体バランサ）
７０ 循環流路部材（第１循環流路部材）
７０ａ 先端
８０ 循環流路部材（第２循環流路部材）
８１ 基部
８２ 糸屑捕集部
ｈｇ 孔
ｈｉ 吐出口
Ｋ１ 第１傾斜面
Ｋ２ 第２傾斜面
Ｋ３ 拡散面
Ｏ 中心軸
Ｐ 循環流路（第１循環流路） 100 Washing machine 10 Washing tub 11 Body plate (peripheral wall)
11a Convex part 11b Edge 12 Bottom plate 20 Stirring blade 30 Outer tank 40 Drive device 50 Control unit 60 Balance ring (fluid balancer)
70 Circulation flow path member (first circulation flow path member)
70a tip
80 Circulation Channel Member (Second Circulation Channel Member)
81 base
82 Yarn waste collection part
hg hole
hi Discharge port K1 1st sloping surface K2 2nd sloping surface K3 Diffusing surface O Central axis P Circulation flow path (first circulation flow path)

Claims (4)

有底円筒状の洗濯槽と、
前記洗濯槽の底部に設置される撹拌翼と、
前記洗濯槽の内周面に設置され、前記撹拌翼の回転に伴って押し流される洗濯水を上方に導いて吐出させる板状の一対の第１循環流路部材と、
前記洗濯槽の内周面において、一対の前記第１循環流路部材とは周方向で異なる位置に設置される少なくとも一つの第２循環流路部材と、を含んで構成され、
前記洗濯槽は、径方向内側に突出する凸状部を、当該洗濯槽の周壁の縁付近に備え、
前記凸状部は、前記洗濯槽の軸方向において前記周壁の縁に近いほど、前記洗濯槽の中心軸との径方向の距離が短くなるように傾斜している第１傾斜面を有し、
一対の前記第１循環流路部材の吐出側は、それぞれ、前記洗濯槽の軸方向に延びており、
一対の前記第１循環流路部材の吐出側の先端は、それぞれ、前記凸状部の付近に位置し、
一対の前記第１循環流路部材と前記洗濯槽の内周面との間の隙間である第１循環流路は、それぞれ、その吐出側が開放されており、
前記洗濯槽の前記中心軸を基準として、一対の前記第１循環流路部材が対向しており、
前記第２循環流路部材は、
前記洗濯槽の内周面に設置される板状の基部と、
前記基部の開口に装着され、複数の孔にリントフィルタが貼り付けられてなる糸屑捕集部と、を有し、
前記基部は、その下端付近以外の縁部が前記洗濯槽の内周面に密着しており、
前記基部の下端付近と前記洗濯槽の内周面との間の隙間を介して流れる洗濯水を吐出する吐出口が、前記糸屑捕集部において複数の前記孔の上側に設けられていること
を特徴とする洗濯機。 A cylindrical washing tub with a bottom,
A stirring blade installed at the bottom of the washing tub,
A pair of plate-shaped first circulation flow path members that are installed on the inner peripheral surface of the washing tub and that guide the washing water that is swept along with the rotation of the stirring blade upward and discharge the washing water ;
On the inner peripheral surface of the washing tub, a pair of the first circulation flow path members and at least one second circulation flow path member installed at different positions in the circumferential direction are configured to be included.
The washing tub is provided with a convex portion protruding inward in the radial direction near the edge of the peripheral wall of the washing tub,
The convex portion has a first inclined surface that is inclined such that the closer to the edge of the peripheral wall in the axial direction of the washing tub, the shorter the radial distance from the central axis of the washing tub is,
The discharge sides of the pair of first circulation flow path members respectively extend in the axial direction of the washing tub,
The discharge-side tips of the pair of first circulation flow path members are respectively located near the convex portions ,
The discharge side of each of the first circulation flow channels, which is a gap between the pair of first circulation flow channel members and the inner peripheral surface of the washing tub, is open,
With the central axis of the washing tub as a reference, the pair of first circulation flow path members face each other,
The second circulation flow path member,
A plate-shaped base installed on the inner peripheral surface of the washing tub,
And a lint collecting part that is attached to the opening of the base part and has a lint filter attached to a plurality of holes,
The base portion is in close contact with the inner peripheral surface of the washing tub with an edge portion other than near the lower end thereof,
A discharge port for discharging washing water flowing through a gap between the lower end of the base part and the inner peripheral surface of the washing tub is provided above the plurality of holes in the lint collection part. A washing machine characterized by. 前記凸状部の上側に設置され、内部に流体が封入されている外形環状の流体バランサをさらに含んで構成され、
前記流体バランサは、前記第１傾斜面と略面一である第２傾斜面を、前記凸状部よりも径方向内側に有すること
を特徴とする請求項１に記載の洗濯機。 It is arranged on the upper side of the convex portion and is further configured to further include an outer annular fluid balancer in which a fluid is enclosed.
The washing machine according to claim 1, wherein the fluid balancer has a second inclined surface that is substantially flush with the first inclined surface on a radially inner side of the convex portion. 前記中心軸を含む平面での縦断面視における前記第１循環流路部材の吐出側の延長線上に、前記第２傾斜面が存在していること
を特徴とする請求項２に記載の洗濯機。 The washing machine according to claim 2, wherein the second inclined surface is present on an extension line on the discharge side of the first circulation flow path member in a vertical cross-sectional view in a plane including the central axis. .. 前記流体バランサは、洗濯水を自身に当てて拡散させる拡散面を、前記第２傾斜面よりも径方向内側に有すること
を特徴とする請求項２又は請求項３に記載の洗濯機。 The washing machine according to claim 2 or 3, wherein the fluid balancer has a diffusing surface on the inner side in the radial direction with respect to the second inclined surface for diffusing the washing water against itself.
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