WO2018077280A1 - 洗衣机 - Google Patents

洗衣机 Download PDF

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Publication number
WO2018077280A1
WO2018077280A1 PCT/CN2017/108425 CN2017108425W WO2018077280A1 WO 2018077280 A1 WO2018077280 A1 WO 2018077280A1 CN 2017108425 W CN2017108425 W CN 2017108425W WO 2018077280 A1 WO2018077280 A1 WO 2018077280A1
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WO
WIPO (PCT)
Prior art keywords
washing machine
dewatering tub
bottom wall
water
peripheral surface
Prior art date
Application number
PCT/CN2017/108425
Other languages
English (en)
French (fr)
Chinese (zh)
Inventor
西浦直人
米田昌令
福井秋陆
大西胜司
大槻太郎
前场克之
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海尔洗衣机有限公司, Aqua株式会社 filed Critical 青岛海尔洗衣机有限公司
Publication of WO2018077280A1 publication Critical patent/WO2018077280A1/zh

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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
    • 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
    • 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 
    • D06F23/04—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 a vertical 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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical 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

Definitions

  • the present invention relates to a washing machine.
  • the electric washing machine described in Patent Document 1 includes an electric washing machine main body, an outer tub provided at an upper portion of the electric washing machine main body, and an inner tub rotatably provided in the outer tub.
  • a plurality of water circulation grooves extending from the lower portion of the inner wall to the upper portion of the inner tub are formed, and a dewatering hole penetrating the inner wall of the inner tub is provided in an upper portion of each of the water circulation grooves.
  • Patent Document 1 Japanese Patent Laid-Open No. Hei 9-56977
  • the present invention has been made in view of the above circumstances, and an object of the invention is to provide a washing machine capable of suppressing the generation of scale or mold in a wide range around a dewatering tank and a dewatering bucket by water generated by dehydration.
  • the present invention relates to a washing machine comprising: a dewatering tub comprising: a cylindrical circumferential wall having an inner peripheral surface that gradually expands from a lower end toward a lower end; and a bottom wall connected to the circumferential wall from a lower side, The bottom wall is formed with a drain port penetrating the bottom wall in the up-and-down direction, the dewatering tub accommodates the laundry, and is driven to rotate around a central axis of the circumferential wall; the main body of the washing machine is formed with a receiving space for housing the dewatering tub And a drain passage provided to the main body of the washing machine and connected to the receiving space from a lower side, a portion of the drain opening being located at a lower end of the inner peripheral surface in a radial direction with respect to the central axis The same position or the outer side of the lower end of the inner peripheral surface.
  • the present invention is characterized in that, in the bottom wall, a portion that is adjacent to a lower end of the inner peripheral surface from the lower side is provided with a non-protrusion that does not protrude toward the inner side of the inner peripheral surface in the radial direction Highlights.
  • the present invention is characterized in that the non-protruding portion includes a concave portion that is recessed from the lower end of the inner peripheral surface toward the outer side in the radial direction.
  • the present invention is characterized in that the concave portion is formed so as to extend outward in the radial direction as the region closer to the drain port in the circumferential direction around the central axis.
  • the present invention is characterized in further comprising: a rotating member disposed at a lower portion of an inner space of the dewatering tub and driven to rotate about the central axis; and a gap-filling member mounted to the dewatering tub, pair The inner peripheral surface and the radial gap of the rotating member are filled, and the gap-filling member is formed with a groove that penetrates the gap-filling member in the vertical direction and opens toward the inner peripheral surface. mouth.
  • the dewatering tub containing the laundry when dehydration is performed in the washing machine, the dewatering tub containing the laundry is driven to rotate about the central axis of the circumferential wall thereof, and therefore, the moisture in the laundry is directed to the center by the centrifugal force generated by the rotation of the dewatering tub.
  • the outer side of the radial direction on which the axis is referenced is extruded and faces the inner peripheral surface of the circumferential wall.
  • the inner peripheral surface of the circumferential wall is formed obliquely so as to gradually expand from the upper end toward the lower end. Therefore, the water extruded from the laundry and reaching the inner peripheral surface of the circumferential wall faces the dewatering bucket along the inclination of the inner peripheral surface.
  • the bottom wall flows down.
  • a portion of the drain port formed in the bottom wall is located at the same position as the lower end of the inner peripheral surface of the circumferential wall in the radial direction, or at the outer side of the lower end, so that the water reaching the lower end of the inner peripheral surface of the circumferential wall is quickly worn.
  • the drain port flows down to the lower side of the bottom wall, passes through the drain road and is discharged to the outside of the machine.
  • the water generated by the dehydration does not adhere to the outer peripheral surface of the circumferential wall of the dewatering bucket, And the inner wall surface of the main body of the washing machine surrounding the circumferential wall is quickly discharged to the outside of the machine. Therefore, it is possible to suppress the generation of scale or mold in a wide range around the dewatering tank and the dewatering tank due to the water generated by the dehydration. Further, the water which is extruded from the laundry and reaches the lower end of the inner circumferential surface of the circumferential wall is discharged, and is not stored in the dewatering tub and reattached to the laundry. Therefore, the dehydration effect can be improved and the suppression can be suppressed.
  • the eccentric rotation of the dewatering bucket caused by the accumulation of water in the dewatering bucket.
  • a portion of the bottom wall of the dewatering tub that is adjacent to the lower end of the inner peripheral surface of the circumferential wall from the lower side is provided with a non-protruding portion that does not protrude inward in the radial direction of the inner peripheral surface.
  • the non-protruding portion includes a concave portion that is recessed from the lower end of the inner peripheral surface toward the outer side in the radial direction, and therefore water that is extruded from the laundry and flows down to the lower end of the inner peripheral surface of the circumferential wall passes through the concave portion.
  • the centrifugal force generated by the rotation of the dewatering tub is away from the laundry in the dewatering tub to the outside of the radial direction. Thereby, it is possible to suppress the water which has been extruded from the laundry from reattaching to the laundry, and therefore, it is possible to further improve the dehydration effect.
  • the concave portion is formed to expand toward the outer side in the radial direction in the circumferential direction around the central axis of the circumferential wall of the dewatering tub, as it is closer to the drain port.
  • the water that has been extruded from the laundry and enters the concave portion from the lower end of the inner circumferential surface of the circumferential wall is guided to the region by the centrifugal force generated by the rotation of the dewatering tub, so that it is easy to reach the drain port.
  • the water entering the recess quickly passes through the drain and is discharged to the outside of the machine.
  • water is accumulated in the concave portion, whereby it is possible to suppress the laundry in the dewatering tank from being wetted, or to suppress the generation of dirt or mold on the bottom wall of the dewatering tank. Further, it is possible to suppress the eccentric rotation of the dewatering tub caused by the accumulation of water in the dewatering tub.
  • the gap between the inner peripheral surface of the circumferential wall of the dewatering tub and the radial direction of the rotating member is filled by the gap filling member, and therefore, it is possible to prevent laundry or foreign matter in the dewatering tub from entering the gap.
  • the gap-filling member is formed with a notch that penetrates the gap-filling member in the vertical direction and opens toward the inner peripheral surface of the circumferential wall. Therefore, water that has been extruded from the laundry and flows down to the inner peripheral surface of the circumferential wall passes through the groove.
  • the mouth whereby the flow is unimpeded, quickly reaches the lower end of the inner peripheral surface, passes through the drain port and is discharged to the outside of the machine. Therefore, a constant dehydration effect can be obtained, and it is possible to further suppress the generation of scale or mold in a wide range around the dewatering tub and the dewatering tub due to the water generated by the dehydration.
  • Fig. 1 is a longitudinal sectional right side view of a washing machine in accordance with an embodiment of the present invention.
  • FIG. 2 is a plan view of a main body of a washing machine of a washing machine.
  • Fig. 3 is a longitudinal sectional right side view of the dewatering tub included in the washing machine.
  • Figure 4 is a top plan view of the bottom wall of the dewatering bucket.
  • Fig. 5 is an enlarged view of a portion enclosed by a circle of a broken line in Fig. 1.
  • Fig. 6 is a perspective view of the dewatering tub viewed from the lower side.
  • Fig. 7 is a perspective view of a dewatering bucket including a longitudinal section and a rotating member.
  • FIG. 1 is a longitudinal sectional right side view of a washing machine 1 according to an embodiment of the present invention.
  • the vertical direction of FIG. 1 is referred to as the vertical direction Z of the washing machine 1
  • the left-right direction of FIG. 1 is referred to as the front-rear direction Y of the washing machine 1
  • the direction orthogonal to the paper surface of FIG. 1 is referred to as the left-right direction of the washing machine 1.
  • the vertical direction Z includes an upper side Z1 corresponding to the upper side of FIG. 1 and a lower side Z2 corresponding to the lower side of FIG. 1 .
  • the front-rear direction Y includes a front side Y1 corresponding to the left side of FIG. 1 and a rear side Y2 corresponding to the right side of FIG.
  • the left-right direction X includes a left side X1 corresponding to the back side of the paper surface of FIG. 1 and a right side X2 corresponding to the front side of the paper surface of FIG.
  • the left and right direction X and the front and rear direction Y are included in the lateral direction.
  • the size of the washing machine 1 may be the same size as that of an ordinary household washing machine, or may be, for example, a small machine that can be set to a table level.
  • the washing machine 1 has a substantially cylindrical overall shape including a central axis J extending in the vertical direction Z.
  • the circumferential direction around the central axis J is referred to as the circumferential direction Q
  • the radial direction with reference to the central axis J is referred to as the radial direction R.
  • the circumferential direction Q and the radial direction R are included in the lateral direction, that is, in the horizontal direction.
  • the washing machine 1 includes a washing machine main body 2, a door 3, a dewatering tub 4, and a rotating member 5.
  • a washing machine main body 2 a direction close to the central axis J
  • a dewatering tub 4 a direction away from the central axis J
  • the washing machine 1 includes a washing machine main body 2, a door 3, a dewatering tub 4, and a rotating member 5.
  • the description will be given in the order of the washing machine body 2, the door 3, the dewatering tub 4, and the rotating member 5.
  • the washing machine body 2 is formed in a bottomed cylindrical shape.
  • the washing machine body 2 includes a cylindrical circumferential wall 10, Having a central axis coincident with the central axis J; an extension portion 11 provided at a portion on the circumference of the outer circumferential surface of the circumferential wall 10; and a disc-shaped bottom wall 12 coaxially with the lower end edge of the circumferential wall 10 connection.
  • a space surrounded by the circumferential wall 10 from the radially outer side R2 and blocked by the bottom wall 12 from the lower side Z2 is a housing space 2A formed in the washing machine main body 2.
  • the accommodating space 2A is formed in a cylindrical shape having a central axis that coincides with the central axis J.
  • the area enclosed by the upper end portion of the circumferential wall 10 constitutes a detachable opening 2B at the upper end of the washing machine body 2.
  • the detachable opening 2B opens the accommodating space 2A of the washing machine main body 2 to the upper side Z1.
  • the extending portion 11 is provided on the outer peripheral surface of the rear side Y2 of the circumferential wall 10, and protrudes toward the rear side Y2, and is formed in a columnar shape extending in the vertical direction Z.
  • the upper surface portion of the bottom wall 12 includes a central portion 12A located around the central axis J, and an outer peripheral portion 12B that surrounds the central portion 12A from the radially outer side R2 and is located lower than the central portion 12A; and the intermediate portion 12C, Located between the central portion 12A and the outer peripheral portion 12B in the radial direction R.
  • the central portion 12A, the outer peripheral portion 12B, and the intermediate portion 12C are formed in an annular shape extending in the circumferential direction Q.
  • the central portion 12A and the outer peripheral portion 12B extend substantially flat in the lateral direction, and the intermediate portion 12C is inclined with respect to the lateral direction so as to be inclined downward toward the lower side Z2 toward the radially outer side R2, and is stretched over the outer periphery and the outer peripheral portion of the central portion 12A. Between the inner circumferences of 12B.
  • the central portion 12A is formed with a circular opening portion 12D having a central axis that coincides with the central axis J, and an annular flange portion 12E that surrounds the opening portion 12D and protrudes toward the upper side Z1.
  • the bottom wall 12 having such an upper surface portion is thickened in the up-and-down direction Z as it approaches the center axis J, but it is a hollow body.
  • the bottom wall 12 includes a fixing portion 13, a support portion 14, a drive shaft 15, a motor 16, a drain passage 17, and a drain mechanism 18.
  • the fixing portion 13 is formed in an annular shape extending in the circumferential direction Q, and is fixed to the bottom wall 12 directly below the central portion 12A of the upper surface portion of the bottom wall 12.
  • the fixing portion 13 can be regarded as a part of the bottom wall 12.
  • a cylindrical tubular portion 13A is formed on the lower surface portion of the fixed portion 13, and the inner peripheral surface of the fixed portion 13 is covered and protruded to the lower side Z2.
  • the support portion 14 integrally includes a disk-shaped disk portion 14A having a central axis coinciding with the central axis J, and a cylindrical tubular portion 14B from the center of the lower surface portion of the disk portion 14A to the lower side Z2 protruding.
  • a through hole 14C extending downward from the side Z2 is formed in a central portion of the upper surface portion of the disk portion 14A.
  • the internal space of the tubular portion 14B is a part of the through hole 14C.
  • the support portion 14 is in a state in which the disk portion 14A is fitted into the inner space of the fixed portion 13 from the upper side Z1, the cylindrical portion 14B passes through the inner side of the fixed portion 13, and the lower end portion of the cylindrical portion 14B is taken from the cylindrical portion 13A of the fixed portion 13. The inside is exposed to the lower side Z2.
  • the support portion 14 is rotatably supported by a bearing 19 interposed between the tubular portion 13A and the tubular portion 14B.
  • the gap between the fixed portion 13 of the upper side Z1 of the bearing 19 and the tubular portion 14B is blocked by an annular sealing member 20 such as an oil seal.
  • the gap between the disk portion 14A and the fixing portion 13 is blocked by the other sealing member 21.
  • the upper surface portion of the disk portion 14A is exposed from the opening portion 12D of the central portion 12A of the upper surface portion of the bottom wall 12 to the upper side Z1.
  • the drive shaft 15 is formed in a cylindrical shape having a central axis coinciding with the central axis J.
  • a concave receiving portion 15A recessed to the lower side Z2 is formed on the upper end surface of the drive shaft 15.
  • the cross section of the receiving portion 15A when being cut in the lateral direction is a substantially polygonal shape such as a hexagon (see FIG. 2 described later).
  • the drive shaft 15 is inserted into the through hole 14C of the support portion 14.
  • the upper end surface of the drive shaft 15 is disposed such that the upper surface portion of the disk portion 14A of the support portion 14 is exposed from the through hole 14C to the upper side Z1, and the lower end portion of the drive shaft 15 is disposed downward from the tubular portion 14B of the support portion 14.
  • Side Z2 is exposed.
  • the drive shaft 15 is rotatably supported by a bearing 22 interposed between the drive shaft 15 and the support portion 14.
  • the gap between the disk portion 14A and the upper end portion of the drive shaft 15 is blocked by an annular sealing
  • the motor 16 is fixed to the fixed portion 13 from the lower side Z2.
  • a control unit 24 composed of a microcomputer or the like is provided, and the motor 16 is driven by the control unit 24 to generate a driving force.
  • the driving force generated by the motor 16 is selectively transmitted to each of the support portion 14 and the drive shaft 15. Thereby, the support portion 14 and the drive shaft 15 are separately driven to rotate in the circumferential direction Q about the central axis J.
  • the drain path 17 extends within the bottom wall 12.
  • One end of the drain passage 17 serves as an outlet 17A, and is disposed at one portion on the circumference of the outer peripheral portion 12B of the upper surface portion of the bottom wall 12 (see FIG. 2), and the other end (not shown) of the drain passage 17 is led to the main body of the washing machine. 2 outside.
  • the outlet 17A is formed across the outer peripheral portion 12B and the intermediate portion 12C at the boundary between the outer peripheral portion 12B and the intermediate portion 12C of the upper surface portion of the bottom wall 12, and the accommodating space 2A of the washing machine main body 2 from the lower side Z2. connection.
  • the leg portion 25 is provided on the lower surface portion of the bottom wall 12, and when the washing machine 1 is placed on a mounting surface such as a floor, the leg portion 25 is in contact with the mounting surface.
  • the leg portion 25 may also be provided on the lower surface portion of the extension portion 11.
  • the drain mechanism 18 includes a pin 26 extending in the vertical direction Z, and an actuator 27 composed of a solenoid or the like and sliding the pin 26 in the vertical direction Z.
  • the pin 26 is disposed on the outer circumference of the upper surface portion of the bottom wall 12 Specifically, one portion on the circumference of the portion 12B is disposed at a position on the rear side Y2 that is shifted by 180 degrees from the outlet 17A in the circumferential direction Q (see FIG. 2).
  • the distal end portion 26A of the upper side Z1 of the pin 26 is exposed from the bottom wall 12 to the upper side Z1.
  • the pin 26 is slidable in the vertical direction Z between the upper position (see FIG. 1) and the lower position (not shown) of the lower side Z2 of the upper position in response to the driving of the actuator 27.
  • the drive of the actuator 27 is controlled by the control unit 24.
  • the pin 26 is typically placed in a lower position.
  • the door 3 opens and closes the attachment opening 2B of the washing machine main body 2.
  • the door 3 integrally includes a door main body portion 30 formed in a disk shape having a thickness in the vertical direction Z, and a door connecting portion 31 projecting from the outer circumferential surface of the rear side Y2 of the door main body portion 30 toward the rear side Y2.
  • the outer diameter of the door main body portion 30 is substantially the same as the outer diameter of the circumferential wall 10 of the washing machine main body 2.
  • the door connecting portion 31 is coupled to the upper end portion of the extending portion 11 via a connecting shaft 32 that extends in a tangential direction with respect to the circumferential direction of the door main body portion 30. Thereby, the door 3 is supported by the washing machine main body 2.
  • the door 3 is rotatable about the coupling shaft 32 between a horizontal closed position (see FIG. 1) and a substantially vertical open position (not shown).
  • the door main body portion 30 In the door 3 in the closed position, the door main body portion 30 is disposed coaxially with the washing machine main body 2, and the detachable opening 2B of the washing machine main body 2 is closed from the upper side Z1, whereby the accommodating space 2A of the washing machine main body 2 is closed. Closed.
  • the door main body portion 30 In the door 3 in the open position, since the door main body portion 30 is biased from the dismounting port 2B toward the rear side Y2, the door 3 is not present directly above the dismounting port 2B, and the entire area of the dismounting port 2B is up to the side Z1. open.
  • the dewatering tub 4 is formed in a bottomed cylindrical shape.
  • the dewatering tub 4 includes a cylindrical circumferential wall 35 having a central axis coinciding with the central axis J, an annular ring member 36 coaxially mounted to the upper end portion of the circumferential wall 35, and a handle 37 mounted to the ring The member 36; and the disk-shaped bottom wall 38 are coaxially connected from the lower side Z2 to the lower end edge of the circumferential wall 35.
  • the circumferential wall 35 is made of, for example, metal.
  • the thickness of the circumferential wall 35 in the radial direction R is constant over substantially the entire area of the vertical direction Z and the circumferential direction Q, and the circumferential wall 35 is reduced in diameter toward the upper side Z1. Therefore, the outer circumferential surface 35A and the inner circumferential surface 35B of the circumferential wall 35 are formed such that the diameter is gradually increased from the upper end 35C of the circumferential wall 35 toward the lower end 35D.
  • the inclination angle of each of the outer peripheral surface 35A and the inner peripheral surface 35B with respect to the up-down direction Z is at least 1 degree or more, but is a small value of several degrees.
  • at least the inner peripheral surface 35B may be formed to expand from the upper end 35C toward the lower end 35D, and the outer peripheral surface 35A may extend vertically.
  • An annular flange member 40 is integrally provided at a lower end portion of the outer peripheral surface 35A of the circumferential wall 35, and the lower end portion is covered and extended in the circumferential direction Q.
  • the flange member 40 is made of, for example, a resin.
  • the lower portion 40A of the flange member 40 has a larger diameter than the upper portion 40B of the flange member 40, and is disposed so as to be exposed to the lower side Z2 of the lower end 35D of the circumferential wall 35 over the entire region in the circumferential direction Q.
  • the boundary portion between the lower portion 40A and the upper portion 40B of the flange member 40 is a lateral portion 40C that extends in the radial direction R.
  • the cross section when cutting at one portion on the circumference of the flange member 40 is formed into a substantially crank shape.
  • An annular gap-filling member 41 is attached to the lower end portion of the inner peripheral surface 35B of the circumferential wall 35, and the lower end portion is covered and extended in the circumferential direction Q.
  • the gap-filling member 41 is made of, for example, a resin.
  • the gap-filling member 41 integrally includes a longitudinal portion 41A that extends up and down along the inner peripheral surface 35B, and a lateral portion 41B that protrudes from the lower end portion of the longitudinal portion 41A toward the radially inner side R1. Therefore, the cross section of the gap-filling member 41 when one portion on the circumference is cut is formed in a substantially L shape.
  • the lower end of the longitudinal portion 41A is located at substantially the same position as the lower end 35D of the inner peripheral surface 35B in the vertical direction Z.
  • a plurality of notches 41C penetrating the longitudinal portion 41A in the vertical direction Z are formed side by side in the circumferential direction Q.
  • the entire area in the vertical direction Z is opened toward the inner peripheral surface 35B of the radially outer side R2.
  • the ring member 36 is made of, for example, a resin.
  • the ring member 36 integrally includes a lower portion 36A that envelops an upper end portion of the outer peripheral surface 35A of the circumferential wall 35, and an upper portion 36B that is formed from an inner peripheral surface 35B of the circumferential wall 35 to an upper side Z1 and a radially inner side R1. The party is exposed. Therefore, the cross section of the ring member 36 when one portion on the circumference is cut is formed into a substantially crank shape.
  • the fastening member 42 such as a screw penetrating the inner circumferential surface of the circumferential wall 35 is assembled to the lower portion 36A, whereby the ring member 36 is fixed to the upper end portion of the circumferential wall 35 and constitutes a part of the dewatering tub 4.
  • the area enclosed by the upper portion 36B constitutes a take-in outlet 4A located at the upper end of the dewatering tub 4.
  • the grip portion 43 is integrally provided at two portions of the ring member 36 which are, for example, offset by 180 degrees in the circumferential direction Q.
  • Each of the grip portions 43 is formed in a block shape extending in the circumferential direction Q as a part of the upper portion 36B of the ring member 36.
  • the two side faces of the radial direction R are formed in a curved curved shape (see FIG. 7 described later).
  • a step 36C is formed by the upper surface of the lower portion 36A and the outer peripheral surface of the upper portion 36B.
  • the step 36C is two across the central axis J, and is formed in an arc shape extending in the circumferential direction Q between the two grip portions 43 (refer to FIG. 7).
  • Each step 36C is open to the radially outer side R2 and the upper side Z1.
  • the handle 37 is formed of a wire or the like in an arc shape extending in the circumferential direction Q, and is present in each of the steps 36C. Both end portions 37A of the respective handles 37 are bent toward the radially inner side R1. In the upper portion 36B of the ring member 36 Each of the end portions 37A of the handles 37 is aligned with each other in the circumferential direction Q, and each of them has a through hole 36D extending in the radial direction R, and both end portions 37A of the handles 37 are inserted one by one from the radially outer side R2. The through hole 36D is uniform to the circumferential direction Q. Thereby, each handle 37 is supported by the ring member 36, and can rotate around the both ends 37A. In detail, each of the handles 37 is rotated between a receiving position horizontally received by the step 36C as shown in FIG. 3 and a drawing position (not shown) which is drawn from the upper side Z1 of the step 36C and which is substantially perpendicular.
  • the bottom wall 38 is made of, for example, a resin, and has a thickness direction that coincides with the vertical direction Z.
  • the bottom wall 38 integrally includes a central portion 38A located around the central axis J, a peripheral portion 38B that surrounds the central portion 38A from the radially outer side R2 and is located lower than the central portion 38A, and a middle portion 38C that is located in the radial direction.
  • the central portion 38A of R is between the outer peripheral portion 38B.
  • the central portion 38A, the outer peripheral portion 38B, and the intermediate portion 38C are formed in a ring shape extending in the circumferential direction Q, and have substantially the same plate thickness.
  • the central portion 38A and the outer peripheral portion 38B extend flat in the lateral direction, and the intermediate portion 38C is inclined with respect to the lateral direction so as to be inclined to the upper side Z1 toward the radially inner side R1, and is stretched over the outer peripheral edge and the outer peripheral portion 38B of the central portion 38A. Between the inner circumferences. Therefore, the upper surface portions of the central portion 38A and the outer peripheral portion 38B are flat in the lateral direction, and the upper surface portion of the intermediate portion 38C is inclined with respect to the lateral direction.
  • a circular through hole 38D penetrating the center portion 38A in the vertical direction Z is formed at the center of the center portion 38A.
  • the inner circumferential surface 38E of the center portion 38A that surrounds the through hole 38D is formed into a tapered shape that is reduced in diameter toward the lower side Z2.
  • a cylindrical tubular portion 38F is integrally formed in the central portion 38A, and protrudes from the outer peripheral portion of the lower surface portion of the central portion 38A toward the lower side Z2 and surrounds the through hole 38D.
  • a circular drain port 38G that penetrates the outer peripheral portion 38B in the vertical direction Z is formed at one portion on the circumference of the outer peripheral portion 38B.
  • the inner peripheral surface 38H of the outer peripheral portion 38B that is rimmed to the drain port 38G is formed in a tapered shape that is reduced in diameter toward the lower side Z2. Therefore, the drain port 38G is formed in a substantially truncated conical shape that is reduced in diameter toward the lower side Z2.
  • a cylindrical guide portion 38I is formed in the lower surface portion of the outer peripheral portion 38B, and surrounds the drain port 38G and protrudes toward the lower side Z2.
  • the outer peripheral portion 38B is integrally provided with an outer edge portion 38J which is trimmed over the entire outer peripheral portion 38B and extends to the upper side Z1.
  • the outer edge portion 38J is in a state of being in contact with the lower portion 40A of the flange member 40 of the circumferential wall 35 from the radially inner side R1.
  • the fastening member 44 such as a screw penetrates the lower portion 40A from the radially outer side R2 and is assembled to the outer peripheral portion 38B.
  • the bottom wall 38 is fixed to the circumferential wall 35.
  • the space enclosed by the circumferential wall 35 from the radially outer side R2 and blocked by the bottom wall 38 from the lower side Z2 is the internal space 4B of the dewatering tub 4.
  • the internal space 4B is upward from the take-out outlet 4A Side Z1 is open.
  • the inner circumferential surface 35B of the circumferential wall 35 gradually expands toward the lower side Z2, and accordingly, the inner space 4B gradually expands toward the radially outer side R2 toward the lower side Z2.
  • the internal space 4B contains laundry.
  • FIG. 4 which is a plan view of the bottom wall 38, in the bottom wall 38, the central portion 38A and the intermediate portion 38C have a central axis coinciding with the central axis J, and are formed with the upper end 35C of the inner peripheral surface 35B of the circumferential wall 35 ( A circle of a perfect circle is arranged coaxially with reference to a circle of a one-dot chain line and a lower end 35D (see a circle of a broken line).
  • the outer peripheral portion 38B and its outer edge portion 38J are formed in a substantially elliptical ring shape having a long axis L (refer to a two-dot chain line) passing through the center axis J and the center of the drain port 38G.
  • the midpoint of the shaft L, that is, the center K of the outer peripheral portion 38B does not coincide with the central axis J, and is disposed to be biased toward the drain port 38G side from the central axis J.
  • the lower portion 40A (see FIG. 3) of the flange member 40 surrounding the outer edge portion 38J of the outer peripheral portion 38B having such a substantially elliptical contour is also formed to substantially conform to the outer edge portion 38J in plan view. Elliptical ring shape.
  • the length L1 of the major axis L of the substantially elliptical annular outer peripheral portion 38B is larger than the diameter D1 of the inner peripheral surface 35B of the circumferential wall 35 of the lower end 35D. Then, the end L2 on the opposite side of the drain port 38G side of the long axis L is disposed so as to substantially coincide with one portion on the circumference of the lower end 35D in plan view. Therefore, as shown by the hatching in Fig. 4, a recess 38K is formed in a region of the lower side Z2 of the lower end 35D of the inner peripheral surface 35B of the bottom wall 38, which is formed in a substantially annular shape extending along the lower end 35D in plan view.
  • the recessed portion 38K is a space that is sandwiched by the lateral portion 40C (see FIG. 3) of the flange member 40 and the outer peripheral portion 38B from the vertical direction Z, and is blocked by the outer edge portion 38J of the outer peripheral portion 38B from the radially outer side R2.
  • the inner space 4B is formed such that the range from the upper end 35C to the lower end 35D of the inner circumferential surface 35B gradually expands toward the radially outer side R2 toward the lower side Z2 as described above, and the lower end of the lower side Z2 of the lower end 35D.
  • the portion is enlarged toward the radially outer side Z2 by the concave portion 38K (see FIG. 3).
  • the recessed portion 38K is an example of a non-protruding portion of the bottom wall 38 that is adjacent to the lower end 35D from the lower side Z2 and does not protrude toward the radially inner side R1 of the inner peripheral surface 35B.
  • the recessed portion 38K is formed such that the region closer to the drain port 38G in the circumferential direction Q is expanded toward the radially outer side R2, that is, deeper. Therefore, the drain port region 38L of the recessed portion 38K that coincides with the drain port 38G in the circumferential direction Q is most enlarged toward the radially outer side R2.
  • the end point L2 which is farther from the drain port 38G and closer to the long axis L in the circumferential direction Q is smaller, that is, shallower in the radial direction R.
  • the recess 38K can also be interrupted at the end L2.
  • the inner peripheral surface 38M of the outer edge portion 38J of the outer peripheral portion 38B of the end L2 is another example of the non-protruding portion, and is disposed so as to be continuous with the lower end 35D and to be level with the inner peripheral surface 35B (refer to image 3).
  • At least a part of the drain port 38G is disposed so as to overlap the lower end 35D of the inner peripheral surface 35B in plan view. Therefore, a part of the drain port 38G overlaps the drain port area 38L of the recessed portion 38K in plan view, and is located on the radially outer side R2 of the lower end 35D of the inner peripheral surface 35B.
  • any portion of the drain port 38G is not located at the radially outer side R2 of the lower end 35D, and the end edge of the drain port 38G is located at the same position as the lower end 35D in the radial direction R.
  • the dewatering tub 4 further includes a support shaft 50 attached to the bottom wall 38, a coupling member 51, an opening and closing mechanism 52, and a leg member 53.
  • the support shaft 50 is made of metal and has a central axis that coincides with the central axis J, and is formed in a columnar shape extending in the vertical direction Z.
  • a lower engaging portion 50A is formed at a lower end portion of the support shaft 50, and an upper engaging portion 50B is formed at an upper end portion of the support shaft 50.
  • the cross section when the upper engaging portion 50B and the lower engaging portion 50A are cut in the lateral direction is a substantially polygonal shape such as a hexagon.
  • the intermediate portion 50C between the lower engaging portion 50A of the support shaft 50 and the upper engaging portion 50B has a circumferential outer peripheral surface that extends in the circumferential direction Q.
  • the intermediate portion 50C is thicker than the upper engaging portion 50B and the lower engaging portion 50A.
  • An annular groove 50D extending in the circumferential direction Q is formed at an upper end portion of the outer peripheral surface of the intermediate portion 50C.
  • An annular flange portion 50E is integrally formed on the outer peripheral surface of the intermediate portion 50C on the lower side Z2 of the groove 50D, and is extended to the radially outer side R2 and then bent to the lower side Z2.
  • the support shaft 50 is inserted into the through hole 38D of the central portion 38A of the bottom wall 38, thereby penetrating the bottom wall 38 at the central axis J.
  • the lower engaging portion 50A protrudes toward the lower side Z2 of the central portion 38A
  • the upper engaging portion 50B protrudes toward the upper side Z1 of the central portion 38A.
  • the groove 50D is located at substantially the same height position as the through hole 38D
  • the flange portion 50E is located at substantially the same height position as the cylindrical portion 38F of the lower side Z2 of the center portion 38A, and is located radially outward R2. The state surrounded by the tubular portion 38F in a non-contact manner.
  • the connecting member 51 is made of metal.
  • the connecting member 51 is formed in a disk shape having a central axis that coincides with the central axis J and a plate thickness direction that coincides with the vertical direction Z.
  • the outer diameter of the coupling member 51 is substantially the same as the outer diameter of the tubular portion 38F.
  • a through hole 51A penetrating the connecting member 51 in the vertical direction Z is formed at the center of the connecting member 51.
  • a cylindrical inner tubular portion 51B is integrally formed on the upper surface portion of the connecting member 51, and the through hole 51A is wrapped to protrude toward the upper side Z1, and the cylindrical outer tubular portion 51C surrounds the inner portion.
  • the side tubular portion 51B protrudes toward the upper side Z1.
  • the connecting member 51 is attached to the central portion 38A of the bottom wall 38 from the lower side Z2. At this time, the outer peripheral portion of the coupling member 51 is in a state of being in contact with the lower end surface of the tubular portion 38F of the central portion 38A from the lower side Z2.
  • the fastening member 54 such as a screw penetrates the outer peripheral portion of the coupling member 51 from the lower side Z2 and is assembled to the tubular portion 38F. Thereby, the connection member 51 is coaxially fixed to the center part 38A, and becomes a part of the bottom wall 38.
  • the intermediate portion 50C of the support shaft 50 is inserted into the through hole 51A.
  • the lower engagement portion 50A of the support shaft 50 is exposed from the through hole 51A and protrudes toward the lower side Z2 of the lower surface portion of the coupling member 51.
  • the inner tubular portion 51B is fitted into the flange portion 50E of the intermediate portion 50C, and the outer tubular portion 51C is fitted into the tubular portion 38F.
  • the support shaft 50 is in a state in which the support portion 50 is engaged with the inner tubular portion 51B from the upper side Z1 in the flange portion 50E, thereby being positioned in the vertical direction Z with respect to the joint member 51.
  • a bearing 55 is disposed in a gap between the inner circumferential surface of the through hole 51A and the outer circumferential surface of the intermediate portion 50C of the coupling member 51.
  • An annular seal member 56 is fitted into a gap between the flange portion 50E of the support shaft 50 and the radial direction R of the outer tubular portion 51C of the joint member 51 surrounding the flange portion 50E. Further, on the lower end surface of the cylindrical portion 38F of the bottom wall 38, an annular groove 38O extending in the circumferential direction Q is formed on the radially inner side R1 of the screw hole 38N in which the fastening member 54 is assembled. Another annular sealing member 57 is fitted in the groove 38O. A gap passing through the through hole 38D of the bottom wall 38 and toward the lower side Z2 of the bottom wall 38 is formed as a boundary of an adjacent member, but the gap is blocked by the sealing member 56 and the sealing member 57. Therefore, in the case where water is accumulated in the dewatering tank 4, it is possible to prevent water in the dewatering tank 4 from leaking through the gap.
  • the opening and closing mechanism 52 is a mechanism for opening and closing the drain port 38G of the bottom wall 38 of the dewatering tub 4.
  • the opening and closing mechanism 52 includes a fixing member 60, a rotating member 61, and a rotation.
  • the fixing member 60 integrally includes a lateral portion 60A having a plate thickness direction that coincides with the up and down direction Z, and a longitudinal portion 60B protruding from the lateral portion 60A to the lower side Z2.
  • the lateral portion 60A is fixed to a portion of the outer peripheral portion 38B of the bottom wall 38 of the dewatering tub 4 adjacent to the guide portion 38I from the lower side Z2 via a fastening member 68 such as a screw.
  • a pair of longitudinal portions 60B are arranged side by side in the tangential direction T with respect to the circumferential direction Q.
  • the rotating member 61 is formed in a rod shape of a flat plate, and is disposed directly below the drain port 38G and the guide portion 38I.
  • the end portion of the radially inner side R1 of the rotating member 61 is sandwiched by a pair of longitudinal portions 60B.
  • the rotating shaft 62 extends in the tangential direction T and joins the rotating member 61 and the pair of longitudinal portions 60B.
  • the turning member 61 is coupled to the bottom wall 38 via the rotating shaft 62 and the fixing member 60 in a posture inclined so as to be inclined downward toward the lower side Z2 toward the radially outer side R2, and is rotatable up and down about the rotating shaft 62.
  • the weight member 63 is made of, for example, metal, and integrally includes: a flat lateral portion 63A having a plate thickness direction coincident with the rotating member 61; and a pair of longitudinal portions 63B, two of the lateral portions 63A from the tangential direction T The end extends to the upper side Z1.
  • a protruding portion 63C that protrudes toward the upper side Z1 is integrally provided on the upper surface portion of the lateral portion 63A.
  • a hole 63D (see FIG. 5) that penetrates the protruding portion 63C in the radial direction R is formed in the protruding portion 63C.
  • the lateral portion 63A is overlapped from the upper side Z1 with a portion of the rotating member 61 closer to the radially outer side R2 than the rotating shaft 62, that is, a portion of the rotating member 61 that is further away from the central axis J than the rotating shaft 62, and is fastened via a screw or the like 69. Fixed to this part.
  • the urging member 64 is, for example, a torsion coil spring wound around the rotating shaft 62.
  • the urging member 64 has two arm portions 64A extending from a portion wound around the rotating shaft 62.
  • One arm portion 64A is inserted into the hole 63D formed in the protruding portion 63C of the weight member 63, and the other arm portion 64A is inserted into the hole 60C (refer to FIG. 5) formed in the lateral portion 60A of the fixing member 60.
  • the urging member 64 in this state always applies a downward force to the rotating member 61.
  • the support member 65 is made of, for example, metal, and integrally includes a cylindrical main body portion 65A having a central axis extending in the vertical direction Z, and a pair of projecting portions 65B extending from the lower end of the main body portion 65A toward the tangential direction T.
  • the outer side is extended and bent to the upper side Z1.
  • the main body portion 65A includes a lower portion 65C, a middle portion 65D, and an upper portion 65E from the lower side Z2 in the following order.
  • the outer diameter of the main body portion 65A is set to gradually decrease in the order of the lower portion 65C, the intermediate portion 65D, and the upper portion 65E.
  • the outer diameter of the lower portion 65C is slightly smaller than the inner diameter of the guide portion 38I of the bottom wall 38 of the dewatering tub 4.
  • the outer diameter of the intermediate portion 65D is slightly smaller than the inner diameter of the lower end of the drain port 38G of the bottom wall 38.
  • the upper portion 65E includes a first upper portion 65F, a second upper portion 65G, and a third upper portion 65H from the lower side Z2 in the following order.
  • the outer diameter of the upper portion 65E is set to gradually decrease in the order of the first upper portion 65F, the second upper portion 65G, and the third upper portion 65H.
  • the lower surface portion of the lower portion 65C is formed with an annular concave portion 65I recessed toward the upper side Z1 and a protruding portion 65J protruding downward toward the lower side Z2 in the concave portion 65I.
  • the support member 65 is disposed directly above the rotating member 61, and the main body portion 65A of the support member 65 is fitted to the guide portion 38I and the drain port 38G of the bottom wall 38 of the dewatering tub 4 from the lower side Z2 with play.
  • the lower portion 65C is fitted into the guide portion 38I, and the intermediate portion 65D and the upper portion 65E are fitted into the drain port 38G.
  • the support member 65 is guided by the guide portion 38I at the lower portion 65C, thereby being movable in the vertical direction Z.
  • the pair of projecting portions 65B of the support member 65 are disposed such that the guide portions 38I are sandwiched from both sides of the tangential direction T in a non-contact manner.
  • the pair of longitudinal portions 63B of the weight member 63 fixed to the rotating member 61 are disposed outside the pair of extending portions 65B of the supporting member 65 in the tangential direction T.
  • the adjacent longitudinal portion 63B and the projecting portion 65B are coupled by a connecting shaft 70 that extends in the tangential direction T.
  • the insertion hole (not shown) through which the connection shaft 70 is inserted into the extension portion 65B is a long hole that is long in the vertical direction Z. Therefore, the connection shaft 70 moves up and down in the insertion hole, thereby reconstructing
  • the member 63 and the support member 65 are coupled to each other with at least a slight play in the vertical direction Z.
  • the support member 65 is biased by the biasing member 64 to the lower side Z2 together with the rotating member 61 and the weight member 63.
  • the water stop member 66 is, for example, a rubber valve and is formed in a substantially cylindrical shape having a central axis extending in the vertical direction Z.
  • a through hole 66A that penetrates the water stopping member 66 in the vertical direction Z is formed at the center of the water stopping member 66.
  • the outer peripheral surface 66B of the water stop member 66 is formed in a tapered shape that is reduced in diameter toward the lower side Z2. Therefore, the water stopping member 66 strictly has an overall shape of a substantially truncated cone shape.
  • the water stop member 66 is placed on the intermediate portion 65D of the main body portion 65A of the support member 65 from the upper side Z1.
  • the first upper portion 65F is fitted into the lower end portion of the through hole 66A from the lower side Z2, the second upper portion 65G is disposed in the through hole 66A, and the third upper portion 65H is disposed to be exposed from the through hole 66A to the upper side Z1.
  • the annular convex portion 66C of the water stopping member 66 formed on the inner circumferential surface of the divided through hole 66A is crushed by the second upper portion 65G, thereby blocking the gap between the water stopping member 66 of the through hole 66A and the second upper portion 65G.
  • the convex portion 66D similar to the convex portion 66C is also formed on the outer peripheral surface 66B.
  • the sandwiching portion 67 is, for example, an annular gasket, and is placed on the upper surface portion of the water stopping member 66 from the upper side Z1.
  • the third upper portion 65H of the main body portion 65A of the support member 65 is inserted into the hole of the center of the sandwiching portion 67.
  • the other washer 75 is placed on the sandwiching portion 67, and the fastening member 71 such as a screw is fitted to the upper portion 65E of the support member 65 through the sandwiching portion 67 and the inside of the washer 75.
  • the water stopping member 66 is fixed by the main body portion 65A and the sandwiching portion 67 from the vertical direction Z. Therefore, the water stopping member 66 is coupled to the rotating member 61 via the supporting member 65, and the rotating member 61 is biased by the biasing member 64 to the lower side Z2 together with the weight member 63 and the supporting member 65.
  • the water stop member 66 is disposed at the drain port 38G of the bottom wall 38 of the dewatering tub 4.
  • the water stopping member 66 can be moved up and down between the open position and the closed position together with the support member 65 as the rotating member 61 rotates Direction Z moves.
  • the water stopping member 66 shown in Fig. 5 is located at the open position, and the outer peripheral surface 66B of the water stopping member 66 is separated from the inner peripheral surface 38H of the bottom wall 38 which is rimmed toward the drain port 38G. Therefore, when the water stop member 66 is in the open position, the gap between the outer peripheral surface 66B and the inner peripheral surface 38H is enlarged, whereby the drain port 38G is opened.
  • the leg members 53 are made of, for example, metal, and are present in plurality. Referring to Fig. 6, in this embodiment, the three leg members 53 are arranged side by side in the circumferential direction Q, for example, at equal intervals in the lower surface portion of the outer peripheral portion 38B of the bottom wall 38.
  • Each leg member 53 integrally includes a curved portion 53A that protrudes toward the lower side Z2 and is curved in the circumferential direction Q, and a pair of bent portions 53B that are bent from the both end portions of the curved portion 53A toward the radially inner side R1.
  • the fastening member 72 such as a screw penetrates the bent portions 53B and is assembled to the bottom wall 38, whereby the leg members 53 are fixed to the bottom wall 38.
  • One of the three leg members 53 is disposed at a position away from the closing mechanism 52 at a distance of 180 degrees in the circumferential direction Q, and in detail, the center axis is disposed between the bottom wall 38 and the drain port 38G. J's location.
  • a balance weight 73 such as a flat plate is fixed to a portion of the lower surface portion of the bottom wall 38 that is surrounded by the leg members 53C.
  • a protective member 74 having a shape similar to that of the leg member 53 is attached around the opening and closing mechanism 52 of the lower surface portion of the bottom wall 38 (see FIG. 3).
  • the opening and closing mechanism 52 is protected by the protective member 74 from both sides of the circumferential direction Q and the radially outer side R2.
  • the lower ends of the leg members 53 and the protective member 74 are located at the lowermost side Z2 in the dewatering tub 4. Therefore, when the entire dewatering tank 4 is placed on a mounting surface such as a floor surface, the lower ends of the leg members 53 and the protective member 74 are in contact with the placing surface, whereby the connecting member 51 and the opening and closing mechanism 52 are away from each other. Since the mounting surface 51 is prevented, the connecting member 51 and the opening and closing mechanism 52 can be prevented from colliding with the mounting surface and being damaged.
  • the dewatering tub 4 is housed in a housing space 2A of the washing machine body 2.
  • the coupling member 51 of the bottom wall 38 is fitted from the upper side Z1 to the opening portion 12D of the central portion 12A of the bottom wall 12 of the washing machine body 2 so as to be integrally rotatable with the support portion in the bottom wall 12
  • the disk portion 14A of 14 is coupled. Therefore, when the support portion 14 is driven to rotate by the motor 16, the dewatering tub 4 is driven to rotate about the center axis J together with the support portion 14.
  • the support shaft 50 supported by the bottom wall 38 in a rotatable manner
  • the middle and lower engaging portions 50A are fitted into the receiving portion 15A of the drive shaft 15 of the washing machine body 2 from the upper side Z1, whereby the support shaft 50 is coupled to the drive shaft 15 so as to be rotatable integrally.
  • the drive shaft 15 is driven to rotate by the motor 16
  • the support shaft 50 is driven to rotate about the center axis J together with the drive shaft 15.
  • the outer peripheral portion 12B and the intermediate portion 12C face the bottom wall 38 in the accommodating space 2A from the lower side Z2 with a space therebetween.
  • the dewatering tub 4 may be moved up and moved in the circumferential direction Q, whereby the lock of the dewatering tub 4 with respect to the support portion 14 is released, and the dewatering tub 4 can be detached from the washing machine main body 2.
  • the dewatering tub 4 is locked to the support portion 14 in the reverse order of the detachment and attached to the washing machine main body 2.
  • the grip portion 43 of the dewatering tub 4 is held by the user. Further, the user grips the handle 37 of the dewatering tub 4 to the above-described take-out position (not shown), and then grasps it, whereby the entire dewatering tub 4 after the detachment can be moved.
  • FIG. 7 is a perspective view of the dewatering tub 4 including the longitudinal section around the bottom wall 38 and the rotating member 5.
  • the rotating member 5 will be described.
  • Most of the rotating member 5 is made of resin, and is formed in a disk shape having a central axis that coincides with the central axis J.
  • the rotating member 5 includes a disk-shaped main body portion 80 constituting a majority thereof, and a detaching mechanism 81 for detaching and attaching the rotating member 5 to the dewatering tub 4.
  • the central portion 80A of the radial direction R of the upper surface portion of the main body portion 80 is formed to be raised toward the upper side Z1.
  • a recess 80B having a hemispherical recess on the lower side Z2 is formed in the center of the center portion 80A.
  • a plurality of raised portions 80D that are raised toward the upper side Z1 are formed at equal intervals in the circumferential direction Q.
  • a plurality of through holes 80E penetrating the main body portion 80 in the vertical direction Z are formed in the outer peripheral portion 80C.
  • a through hole 80E is also formed in the bottom of the recess 80B.
  • One insertion hole 80F penetrating the main body portion 80 in the vertical direction Z is formed in each of the two portions of the through hole 80E of the bottom portion of the central portion 80A sandwiching the recess portion 80B.
  • a space 82 surrounded by the outer peripheral portion 80C and opened from the lower surface portion of the main body portion 80 to the lower side Z2 is formed in the lower portion Z2 of the recess portion 80B of the center portion 80A.
  • the two insertion holes 80F are in a state of being communicated from the upper side Z1 to the space 82.
  • the detachable mechanism 81 is a so-called ball lock mechanism including a holding member 83, a locking member 84, and a lifting member 85.
  • the holding member 83 is formed in a cylindrical shape having a central axis that coincides with the central axis J, and is fixed to the central portion 80A in the space 82.
  • the cross section of the inside of the holding member 83 when being cut in the lateral direction is formed as the upper side engaging portion 50B of the support shaft 50 of the dewatering tub 4 (refer to the figure). 4)
  • a plurality of circular holding holes 83A penetrating the holding member 83 in the radial direction R are formed in the circumferential direction Q.
  • the lock member 84 is, for example, a metal ball, and is provided in plurality corresponding to the holding hole 83A of the holding member 83, and is fitted into each of the holding holes 83A one by one.
  • Each of the lock members 84 is movable in the radial direction R in a state in which it cannot be detached from the embedded holding hole 83A.
  • the lifting member 85 includes an upper portion 86 and a lower portion 87.
  • the upper portion 86 extends in the radial direction R between the two insertion holes 80F of the main body portion 80, and is inserted into the respective insertion holes 80F from the upper side Z1.
  • the lower portion 87 is disposed in the space 82.
  • the lower portion 87 is connected to both end portions of the upper portion 86 that are inserted from the upper side Z1 to the respective insertion holes 80F.
  • a through hole 87A through which the holding member 83 is inserted from the upper side Z1 is formed in the lower portion 87.
  • An annular convex portion 87B that protrudes inward in the radial direction R1 is formed on the inner circumferential surface of the lower portion 87 of the through hole 87A.
  • the elevating member 85 can be moved up and down between the lock position shown in FIG. 7 and the release position (not shown) of the upper side Z1 of the lock position.
  • the convex portion 87B is located at the same position as each of the lock members 84 in the up-and-down direction Z, and the respective lock members 84 are pressed from the radially outer side R2, whereby a part of each of the lock members 84 is kept from being held.
  • the inner circumferential surface of the member 83 is exposed to the radially inner side R1.
  • the lifting member 85 is always biased toward the locking position by a biasing member such as a spring provided in the rotating member 5.
  • Such a rotating member 5 is disposed at a lower portion of the internal space 4B of the dewatering tub 4 .
  • the upper engaging portion 50B of the support shaft 50 of the dewatering tub 4 is inserted into the inside of the holding member 83 of the rotating member 5 from the lower side Z2, whereby the rotating member 5 is fixed so as not to be opposed to the circumferential direction Q with respect to the support shaft 50. mobile.
  • the convex portion 87B of the elevation member 85 at the lock position presses each of the lock members 84 from the radially outer side R2, and therefore, a part of each of the lock members 84 faces the radially inner side from the inner circumferential surface of the holding member 83.
  • the groove 50D is exposed and embedded in the support shaft 50.
  • the rotating member 5 is fixed so as not to be relatively movable in the up-down direction Z with respect to the support shaft 50. Therefore, the rotating member 5 is locked by the support shaft 50, and is supported by the support shaft 50 so as to be rotatable integrally with the central axis J.
  • the drive shaft 15 is driven to rotate by the motor 16 of the washing machine body 2 (refer to FIG. 1)
  • the rotary member 5 is driven to rotate about the center axis J together with the drive shaft 15 and the support shaft 50.
  • the main body portion 80 of the rotating member 5 of the inner space 4B of the dewatering tub 4 is surrounded by the longitudinal portion R1 of the gap-filling member 41 from the radially outer side R2 in a non-contact manner, and from the upper side Z1 and the gap-filling member 41
  • the horizontal portion 41B is opposed to each other.
  • the longitudinal portion 41A is in a state in which a gap between the main body portion 80 and the lower end portion of the inner peripheral surface 35B of the circumferential wall 35 in the radial direction R is filled. Thereby, the configuration can be suppressed
  • the laundry S and the foreign matter in the region of the main body portion 80 of the internal space 4B and the upper side Z1 of the longitudinal portion 41A enter the gap.
  • the rotating member 5 of this embodiment is detachable with respect to the dewatering tub 4.
  • the elevating member 85 is raised to the release position (not shown).
  • the convex portion 87B is displaced toward the upper side Z1 of each of the lock members 84, and the lock members 84 are not pressed from the radially outer side R2. Therefore, the lock members 84 are radially outward.
  • the washing operation includes a washing process, a rinsing process after the washing process, and a dehydrating process.
  • the rinsing process as well as the dehydration process can be carried out multiple times, in which case the dehydration process can also be carried out after each rinsing process.
  • the user opens the door 3, opens the detachable opening 2B of the washing machine main body 2, and the take-in opening 4A of the dewatering tub 4 to the upper side Z1, and puts the laundry S into the take-out port 4A.
  • the door 3 is closed after being housed in the internal space 4B of the dewatering tub 4.
  • the detergent can be supplied to the internal space 4B as needed.
  • the laundry S in the internal space 4B is disposed in the main body portion 80 and the region of the upper side Z1 of the longitudinal portion 41A as described above, and therefore is located on the upper side Z1 of the concave portion 38K of the bottom wall 38 of the dewatering tub 4.
  • an operation portion such as a switch provided on the surface of the door 3
  • the control portion 24 starts the washing process.
  • the control unit 24 supplies water to the internal space 4B of the dewatering tank 4 by, for example, a water supply mechanism (not shown) provided in the door 3.
  • the water supply mechanism includes a water supply path connected to the faucet, and a water supply valve that opens and closes the water supply path by the control of the control unit 24.
  • water supply may be performed by injecting water drawn from, for example, a water tank into the dewatering tank 4.
  • the dewatering tub 4 in which water is previously taken up and stored in the internal space 4B may be attached to the washing machine main body 2, in which case the dewatering bucket 4 itself becomes a bucket.
  • the water stopping member 66 in the closed position is in close contact with the inner peripheral surface 38H of the drain port 38G of the bottom wall 38 from the upper side Z1 and blocks the drain port 38G, and therefore, in the washing machine 1 It is possible to store water only in the dewatering tank 4 (refer to FIG. 3).
  • the dewatering tub is a rotating body in which a plurality of drain holes are formed in a circumferential wall, and the bucket is a stationary body that houses a dewatering bucket and stores water, and must A drain mechanism is provided in the water tub.
  • the washing machine 1 in which the drain wall is not present in the circumferential wall 35 of the dewatering tub 4 and the water can be washed only in the dewatering tub 4, the structure is simplified, and the washing operation can be suppressed. The amount of water used.
  • the weight of the water in the dewatering tub 4 is together with the self-weight of the water stopping member 66.
  • the upper side Z1 is applied to the water stopping member 66 (refer to FIG. 3).
  • the weight of the rotating member 61 and the weight member 63 coupled to the water stopping member 66 the adhesion of the water stopping member 66 at the closed position to the inner circumferential surface 38H of the drain port 38G can be further improved.
  • the water discharge port 66 can reliably block the drain port 38G, and the water can be reliably stored in the dewatering tank 4.
  • the water stopping member 66 in the closed position relative to the drain port 38G can be further improved without increasing the weight of the weight member 63. Adhesion of inner peripheral surface 38H. Thereby, it is possible to suppress the weight reduction of the dewatering tub 4 caused by the increase in the weight of the weight member 63, and it is possible to reliably block the drain port 38G by the water stopping member 66, and reliably store the water in the dewatering bucket. 4 inside.
  • the force applying member 64 can be omitted if the adhesion of the minimum water stopping member 66 can be ensured without using the urging force of the urging member 64. Even if the urging member 64 is omitted, the water stopping member 66 can be lowered from the open position to the closed position by the weight of the self weight and the support member 65 or the like.
  • the control unit 24 drives the motor 16 to drive the drive shaft 15 to rotate.
  • the rotating member 5 coupled only to the drive shaft 15 via the support shaft 50 is driven to rotate about the central axis J.
  • the laundry S located in the upper side Z1 of the rotating member 5 in the portion space 4B is in contact with the raised portion 80D of the rotating rotating member 5, or is agitated by the flow of water generated by the rotating member 5 in the internal space 4B.
  • the dirt is removed from the laundry S.
  • the detergent is supplied to the internal space 4B, the dirt of the laundry S is decomposed by the detergent.
  • the control unit 24 stops the rotation of the rotating member 5, and then raises the pin 26 of the drain mechanism 18 from the lower position to the upper position shown in FIG. Then, the distal end portion 26A of the pin 26 pushes up the rotating member 61 of the opening and closing mechanism 52 of the dewatering tub 4 from the lower side Z2, and therefore, the water stopping member 66 coupled to the rotating member 61 rises from the previous closed position to the open position.
  • the drain port 38G of the bottom wall 38 of the dewatering tub 4 is opened.
  • the water in the internal space 4B passes through the drain port 38G, is received by the intermediate portion 12C of the upper surface portion of the bottom wall 12 of the washing machine body 2, flows down the intermediate portion 12C, and then flows down and reaches the outer peripheral portion 12B.
  • the outlet 17A is discharged from the drain 17 to the outside of the machine.
  • the outer peripheral portion 12B of the bottom wall 12 is a non-flat surface and is formed to be inclined so as to gradually descend toward the outlet 17A, the water flowing down from the drain port 38G and flowing down the outer peripheral portion 38B does not stay in the middle, and can be reliably Arrive at exit 17A.
  • the outlet 17A is located at a rotationally symmetrical position offset from the pin 26 of the drainage mechanism 18 by 180 degrees. Therefore, in the portion of the outer peripheral portion 12B that faces clockwise toward the outlet 17A (indicated by an arrow of a one-dot chain line) and a portion that faces counterclockwise toward the outlet 17A (see an arrow of a two-dot chain line), it is possible to be horizontal with respect to the horizontal direction.
  • the same inclination angle can suppress the difference between the pin 26 and the outlet 17A to a minimum. Therefore, regardless of whether the water flows clockwise to the outlet 17A or counterclockwise to the outlet 17A in the outer peripheral portion 38B, the outlet 17A can be reached at the shortest distance. It should be noted that the outlet 17A may be disposed at the same position as the pin 26 in the circumferential direction Q.
  • the washing machine 1 may also include a sensor (not shown) that senses the position of the rotating member 61 in the circumferential direction Q.
  • the control section 24 starts the rinsing process.
  • the control unit 24 first supplies water to the internal space 4B of the dewatering tub 4.
  • the control unit 24 confirms that the water in the internal space 4B is strict In other words, when the tap water has been stored in the predetermined water level, only the drive shaft 15 is driven to rotate by the drive motor 16. Thereby, the laundry S of the internal space 4B is rinsed by the flow of water generated by the rotating rotating member 5 in the internal space 4B.
  • the control unit 24 drains the dewatering tub 4 by raising the pin 26 of the drain mechanism 18 to the upper position and moving the water stop member 66 to the open position as described above.
  • the control portion 24 lowers the pin 26 to the lower position and returns the water stopping member 66 to the closed position. Thereby, the rinsing process ends.
  • the control unit 24 starts the dehydration process, and only the support portion 14 is driven to rotate by the drive motor 16. Thereby, the dewatering tub 4 supported by the support portion 14 is driven to rotate about a rotation axis that coincides with the central axis J. At this time, the pin 26 of the drain mechanism 18 is located at a lower position so as not to come into contact with the rotating dewatering tub 4 (see FIG. 5).
  • the centrifugal force generated by the rotation of the dewatering tank 4 acts on the laundry S, whereby the moisture of the laundry S is extruded and flies out toward the radially outer side R2 toward the inner circumferential surface 35B of the circumferential wall 35.
  • the inner circumferential surface 35B is formed obliquely so as to be expanded from the upper end 35C toward the lower end 35D. Therefore, the downward component and the gravity in the centrifugal force act on the moisture which is extruded from the laundry and reaches the inner circumferential surface 35B. Thereby, the water becomes water droplets, and flows down the bottom wall 38 of the dewatering tub 4 along the inclination of the inner circumferential surface 35B.
  • the balance weight 73 is balanced with the weight member 63, and therefore, the eccentric rotation of the dewatering tub 4 by the weight member 63 can be suppressed. Therefore, the generation of vibration caused by the eccentric rotation of the dewatering tub 4 can be suppressed.
  • a comparative example different from the present embodiment is assumed, in which the water stop member 66 blocks the drain port 38G of the bottom wall 38 from the lower side Z2.
  • a large force is required, and accordingly, a large centrifugal force is required in order to open the drain port 38G.
  • the control unit 24 stops the rotation of the dewatering tub 4. Then, the centrifugal force is reduced, whereby the rotating member 61 and the supporting member 65 are returned to the original position by the urging force of the urging member 64, and therefore, the water stopping member 66 is returned from the open position to the closed position (see Fig. 3). Thereby, the dehydration process ends and the entire washing operation ends.
  • the user opens the door 3 and retracts the laundry S in the dewatering tub 4.
  • the user may detach the dewatering tub 4 itself containing the laundry S from the washing machine main body 2.
  • the user rotates the handle 37 of the dewatering tub 4 to the pull-out position (not shown), and grasps the handle 37, bringing the dewatering tub 4 to, for example, a clothes drying place, and drying the washing in the dewatering tub 4. S.
  • a part of the drain port 38G formed in the bottom wall 38 is located at the same position as the lower end 35D of the inner peripheral surface 35B of the circumferential wall 35 in the radial direction R as described above, or is located outside the lower end 35D. . That is, a part of the lower end 35D and the drain port 38G are located at the same position in the radial direction R, and a part of the circumference of the lower end 35D overlaps with a part of the drain port 38G in plan view (refer to FIG. 4). Therefore, referring to Fig.
  • a portion of the bottom wall 38 of the dewatering tub 4 that is adjacent to the lower end 35D of the inner peripheral surface 35B of the circumferential wall 35 from the lower side Z2 is provided with a recess 38K recessed from the lower end 35D toward the radially outer side R2, and an outer peripheral portion.
  • the inner peripheral surface 38M (see FIG. 3) of the outer edge portion 38J of the 38B that is flattened with the inner peripheral surface 35B is referred to as The above non-protruding portion.
  • the convex portion 40D protruding from the end portion of the radially inner side R1 of the lateral portion 40C of the flange member 40 toward the lower side Z2 toward the inside of the concave portion 38K is disposed to be leveled with the inner peripheral surface 35B, thereby constituting non-protrusion An example of the ministry.
  • the water which is extruded from the laundry S and flows down to the lower end 35D of the inner circumferential surface 35B of the circumferential wall 35 at the time of dehydration passes through the non-protruding portions at the lower end portion of the internal space 4B of the dewatering tub 4, thereby preventing the water from being obstructed.
  • the downward flow quickly passes through the drain port 38G and is discharged to the outside of the machine. Therefore, it is possible to further suppress the generation of scale or mold in a wide range around the dewatering tank 4 and the dewatering tank 4 due to the water generated by the dehydration.
  • the drain port 38G when the drain port 38G is disposed so as to face the recess 38K side, that is, the radially outer side R2 so that a part of the drain port 38G overlaps the recess 38K in plan view, the drain port 38G approaches the water flowing down the inner peripheral surface 35B. The destination, therefore, can improve the drainage efficiency of the drain port 38G.
  • the non-protruding portion is provided over the entire region of the bottom wall 38 in the circumferential direction Q. However, the non-protruding portion may be provided only in a part of the circumferential direction Q.
  • the concave portion 38K is formed so as to be enlarged toward the radially outer side R2 as the region closer to the drain port 38G in the circumferential direction Q.
  • the water which has been extruded from the laundry S and enters the recess 38K from the lower end 35D of the inner peripheral surface 35B of the circumferential wall 35 is introduced into the region by centrifugal force, and is introduced in detail to the drain port region 38L (refer to the thick The dotted arrow), therefore, becomes easy to reach the drain port 38G.
  • the water entering the recess 38K quickly passes through the drain port 38G and is discharged to the outside of the machine.
  • a gap filling member 41 for filling a gap between the inner peripheral surface 35B of the circumferential wall 35 of the dewatering tub 4 and the radial direction R of the rotating member 5 is formed, and a gap filling member 41 is formed in the vertical direction Z. And a notch 41C that opens toward the inner peripheral surface 35B of the circumferential wall 35.
  • water which is extruded from the laundry S and flows down to the inner circumferential surface 35B of the circumferential wall 35 at the time of dehydration passes through the notch 41C, thereby preventing the flow from being blocked.
  • the structure is drained from the drain port 38G of the dewatering tub 4, it will be related to the water stoppage and drainage of the dewatering tub 4.
  • the structure is only required to be provided at one portion of the drain port 38G, so that the structure can be simplified.
  • the washing machine 1 may be provided with an outer tub (not shown), and may be disposed in the accommodating space 2A of the washing machine main body 2 and house the dewatering tub 4 .
  • washing machine 1 may also be a dehydrator that performs only a dehydration process.

Landscapes

  • 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)
PCT/CN2017/108425 2016-10-28 2017-10-30 洗衣机 WO2018077280A1 (zh)

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JP2016212230A JP6851587B2 (ja) 2016-10-28 2016-10-28 洗濯機
JP2016-212230 2016-10-28

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Publication number Priority date Publication date Assignee Title
EP4202105A4 (en) * 2020-08-27 2023-12-27 Wuxi Little Swan Electric Co., Ltd. DRAINAGE VALVE AND LAUNDRY TREATMENT DEVICE ASSEMBLY
EP4202106A4 (en) * 2020-08-27 2023-12-27 Wuxi Little Swan Electric Co., Ltd. LAUNDRY TREATMENT APPARATUS

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CN1389616A (zh) * 2001-06-05 2003-01-08 金羚电器有限公司 单桶全自动洗衣机
CN2602048Y (zh) * 2002-08-04 2004-02-04 海尔集团公司 双向洗涤式洗衣机
CN201891027U (zh) * 2010-11-11 2011-07-06 宁波市奇精机械有限公司 一种洗衣机减速离合器的漏水保护装置
CN104452184A (zh) * 2014-11-28 2015-03-25 海信容声(广东)冰箱有限公司 节水型洗衣机
CN204401311U (zh) * 2014-09-29 2015-06-17 青岛海尔洗衣机有限公司 一种全自动洗衣机

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Publication number Priority date Publication date Assignee Title
JPH10118387A (ja) * 1996-10-23 1998-05-12 Sharp Corp 電気洗濯機の防振装置
CN1389616A (zh) * 2001-06-05 2003-01-08 金羚电器有限公司 单桶全自动洗衣机
CN2602048Y (zh) * 2002-08-04 2004-02-04 海尔集团公司 双向洗涤式洗衣机
CN201891027U (zh) * 2010-11-11 2011-07-06 宁波市奇精机械有限公司 一种洗衣机减速离合器的漏水保护装置
CN204401311U (zh) * 2014-09-29 2015-06-17 青岛海尔洗衣机有限公司 一种全自动洗衣机
CN104452184A (zh) * 2014-11-28 2015-03-25 海信容声(广东)冰箱有限公司 节水型洗衣机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4202105A4 (en) * 2020-08-27 2023-12-27 Wuxi Little Swan Electric Co., Ltd. DRAINAGE VALVE AND LAUNDRY TREATMENT DEVICE ASSEMBLY
EP4202106A4 (en) * 2020-08-27 2023-12-27 Wuxi Little Swan Electric Co., Ltd. LAUNDRY TREATMENT APPARATUS

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