WO2018077283A1 - 洗衣机 - Google Patents

洗衣机 Download PDF

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Publication number
WO2018077283A1
WO2018077283A1 PCT/CN2017/108428 CN2017108428W WO2018077283A1 WO 2018077283 A1 WO2018077283 A1 WO 2018077283A1 CN 2017108428 W CN2017108428 W CN 2017108428W WO 2018077283 A1 WO2018077283 A1 WO 2018077283A1
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WO
WIPO (PCT)
Prior art keywords
water
washing machine
bottom wall
drain port
dewatering tub
Prior art date
Application number
PCT/CN2017/108428
Other languages
English (en)
French (fr)
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 WO2018077283A1 publication Critical patent/WO2018077283A1/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
    • 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
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door

Definitions

  • the present invention relates to a washing machine.
  • the washing machine described in Patent Document 1 includes a casing, a washing tub disposed in the casing, and an inner tub rotatably disposed in the washing tub and into which the laundry is put.
  • a drain port is formed at the bottom of the washing tub, and a drain passage is connected to the drain port.
  • the drain path is opened and closed by a drain valve.
  • a plurality of small holes are formed in the circumferential surface of the inner tub.
  • Patent Document 1 Japanese Patent Laid-Open Publication No. 2002-28395
  • 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 reliably discharging water in a dewatering tank when water is stored only in a rotatable dewatering tank for washing.
  • the present invention is a washing machine comprising: a dewatering bucket comprising a cylindrical circumferential wall having a central axis extending in a downward direction; and a bottom wall connected to the circumferential wall from the lower side, and having a drain opening penetrating the bottom wall in an up-and-down direction, the dewatering tub containing the laundry and surrounding the central axis Being driven to rotate; the main body of the washing machine is formed with an accommodating space for accommodating the dewatering tub; a drain passage is provided to the main body of the washing machine, and is connected to the accommodating space from a lower side; and a rotating member is disposed opposite to the center a rotation axis extending in a circumferential direction of the axis in a tangential direction is coupled to the bottom wall and rotatable up and down about the rotation axis; a weight member fixed in the rotation member away from the rotation axis a portion of the central axis; and a water stopping member movable in an up and down direction between a
  • the present invention is characterized in that the rotating member is coupled to the water stopping member.
  • the present invention is characterized in that it comprises a balance weight provided at a position sandwiching the center axis between the bottom wall and the drain port.
  • the present invention is characterized by comprising: a biasing member that biases the rotating member downward.
  • the water stop member in the closed position blocks the drain port by being in close contact with the inner peripheral surface of the drain port of the bottom wall from the upper side, and therefore, can be Water is accumulated in the dewatering tank for washing.
  • the weight of the water in the dewatering tub is applied from the upper side together with the self-weight of the water stop member to the water stopping member that closes the drain port by being in close contact with the inner peripheral surface of the drain port from the upper side.
  • the water is accumulated in the dewatering tub, and the adhesion of the water stop member to the inner peripheral surface of the drain port is improved. Therefore, the drain port can be reliably blocked by the water stop member, and the drain port can be reliably Water is accumulated in the dewatering tank.
  • the weight member fixed to the portion of the rotating member that is farther from the central axis than the rotating shaft is produced by the dewatering bucket
  • the centrifugal force generated by the rotation of the rotating member is rotated upward by the centrifugal force.
  • the water stop member is opened by the rising from the closed position to the open position, so that the water in the dewatering tank can be reliably discharged.
  • the rotating member to which the weight member is fixed is coupled to the water stopping member.
  • the adhesion of the water stopping member at the closed position to the inner peripheral surface of the drain port can be further improved, so that the drain port can be reliably blocked by the water stopping member, and Reliably accumulate water in the dewatering tank.
  • the balance weight and the weight member are balanced during the rotation of the dewatering tub, and therefore, the eccentric rotation of the dewatering tub caused by the weight member can be suppressed.
  • the water stopping member in the closed position can be further increased with respect to the drain port without increasing the weight of the weight member The closeness of the circumference. Therefore, it is possible to suppress the weight of the dewatering tub caused by the increase in the weight of the weight member, and it is possible to reliably block the drain port by the water stopping member, and to reliably store the water in the dewatering tub.
  • 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. Left and right
  • the direction X and the front-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 size 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 main body 2 includes a cylindrical circumferential wall 10 having a central axis coinciding with the central axis J, an extending portion 11 provided at a portion on the circumference of the outer peripheral surface of the circumferential wall 10, and a disc-shaped bottom wall 12, coaxially connected to the lower end edge of the circumferential wall 10.
  • 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 formed in the accommodating space 2A of the washing machine main body 2.
  • the accommodation space 2A is formed in a cylindrical shape having a central axis coinciding 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 trims 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 , and a motor 16 . Drainage path 17 and drainage 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 trimmed and protrudes 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 accommodation 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 at one position on the circumference of the outer peripheral portion 12B of the upper surface portion of the bottom wall 12, and in detail, 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, and an annular ring member 36 coaxially mounted to the upper end portion of the circumferential wall 35; 37, attached to the ring member 36; and a disk-shaped bottom wall 38 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 trimmed 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 trimmed 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 for trimming the upper end portion of the outer peripheral surface 35A of the circumferential wall 35, and an upper portion 36B from the inner peripheral surface 35B of the circumferential wall 35 to the upper side Z1 and the 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 is located at the upper end of the dewatering tank 4 Put in the take-out port 4A.
  • 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. At a position where the upper end portion 36B of the ring member 36 coincides with the both end portions 37A of the respective handles 37 in the circumferential direction Q, a through hole 36D extending in the radial direction R is formed, and both end portions 37A of the respective handles 37 are formed.
  • the through holes 36D that are uniform in the circumferential direction Q are inserted one by one from the radially outer side R2.
  • each handle 37 is supported by the ring member 36, and can rotate around the both ends 37A.
  • 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 peripheral surface 38E of the center portion 38A that trims 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.
  • One portion on the circumference of the outer peripheral portion 38B is formed to penetrate the outer peripheral portion 38B in the vertical direction Z.
  • Round shaped drain port 38G is formed.
  • the inner peripheral surface 38H of the outer peripheral portion 38B that trims 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 opened from the insertion take-out port 4A to the upper side Z1.
  • 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 strictly formed into 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, and is long.
  • 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 internal space 4B is formed as: 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 radial direction through the concave portion 38K at the lower end portion of the lower side Z2 of the lower end 35D.
  • the outer side Z2 is enlarged more (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 may 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 configured to be continuous with the lower end 35D. And flattened with the inner peripheral surface 35B (refer to FIG. 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 trimmed to protrude to the upper side Z1, and the cylindrical outer tubular portion 51C surrounds the inner cylinder. The 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 biases the rotating member 61 downward.
  • 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 is included from the lower side Z2 in the following order Lower portion 65C, intermediate portion 65D, and upper portion 65E.
  • 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 is movable in the vertical direction Z between the open position and the closed position together with the support member 65 in accordance with the rotation of the rotating member 61.
  • 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 by the trimming port 38G which is trimmed to the upper side Z1. 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, is disposed at the bottom wall 38 and sandwiches the center between the drain port 38G.
  • 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.
  • Each leg member 53 and protection The lower end of the member 74 is located at the lowermost side Z2 within 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 the accommodating space 2A of the washing machine main 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 lower engaging portion 50A is fitted from the upper side Z1 to the receiving portion 15A of the drive shaft 15 of the washing machine main body 2, whereby the support shaft 50 is It 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 into a substantially polygonal shape that substantially coincides with the cross section of the upper engaging portion 50B (see FIG. 4 ) of the support shaft 50 of the dewatering tub 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 is radially inward from the inner circumferential surface of the holding member 83.
  • 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, it is possible to suppress the laundry S and foreign matter disposed in the region of the main body portion 80 of the internal space 4B and the upper side Z1 of the longitudinal portion 41A from entering 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 takes the laundry S from the take-out port 4A.
  • the door 3 is closed after being accommodated 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 as described above. And the region of the upper side Z1 of the longitudinal portion 41A, and therefore, the upper side Z1 of the recess 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, and in this case, the dewatering tub 4 itself becomes a water tub.
  • 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 accommodates 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 can be further improved relative to the weight of the weight member 63 without increasing the weight of the weight member 63. Adhesion of the inner peripheral surface 38H of the drain port 38G. 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 internal space 4B comes into contact with the ridge 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 port 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, strictly speaking, 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.
  • 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.
  • 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 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 flat with the inner peripheral surface 35B serves as the above-described 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.
  • the notch 41C is opened toward the inner circumferential 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 lower end 35D of the inner peripheral surface 35B is quickly reached, passes through the drain port 38G, 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 tank 4 and the dewatering tank 4 due to water generated by dehydration.
  • 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 further provided with an outer tub (not shown), and 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.
  • T tangential direction

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  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

一种仅在可旋转的脱水桶(4)中蓄积水来进行洗涤的洗衣机(1)，能可靠地将脱水桶(4)内的水排出。洗衣机(1)包括：脱水桶(4)；洗衣机主体(2)，形成有容纳脱水桶(4)的容纳空间(2A)；以及排水路(17)，从下侧(Z2)与容纳空间(2A)连接。脱水桶(4)包括：圆周壁(35)，具有在上下方向(Z)延伸的中心轴线(J)；以及底壁(38)，从下侧(Z2)与圆周壁(35)连接，并形成有排水口(38G)，脱水桶(4)绕中心轴线(J)被驱动旋转。洗衣机(1)包括：转动构件(61)，经由转动轴(62)与底壁(38)连结，并能上下转动；配重构件(63)，固定于转动构件(61)；以及止水构件(66)，通过在上下方向(Z)移动来对排水口(38G)进行开闭。止水构件(66)与随脱水桶(4)的旋转的转动构件(61)的向上的转动相联动，从关闭位置上升至打开位置。

Description

洗衣机 技术领域
本发明涉及一种洗衣机。
背景技术
下述专利文献1所述的洗衣机包括：机壳、配置于机壳内的洗涤桶、以及可旋转地设置于洗涤桶内并投入有洗涤物的内桶。在洗涤桶的底部形成有排水口，在排水口连接有排水路。排水路通过排水阀进行开闭。在内桶的周面形成有许多小孔。当在关闭排水阀的状态下向洗涤桶内进行供水时，水蓄积在洗涤桶内，并穿过小孔也蓄积在内桶内。当打开排水阀时，洗涤桶内以及内桶内的水穿过排水口以及排水路并排出至机外。
现有技术文献
专利文献
专利文献1：日本特开2002-28395号公报
发明内容
本发明所要解决的问题
在专利文献1所述的洗衣机中，考虑到一种在内桶上没有小孔、仅在内桶中蓄积水来进行洗涤的结构。在该情况下，需要用于将蓄积在内桶的水排出的结构。
本发明是基于该背景而完成的发明，其目的在于，提供一种在仅在可旋转的脱水桶中蓄积水来进行洗涤的情况下，能可靠地将脱水桶内的水排出的洗衣机。
用于解决问题的方案
本发明是一种洗衣机，包括：脱水桶，其包含圆筒状的圆周壁，具有在上 下方向延伸的中心轴线；以及底壁，从下侧与所述圆周壁连接，并形成有在上下方向贯通所述底壁的排水口，所述脱水桶容纳洗涤物，并绕所述中心轴线被驱动旋转；洗衣机主体，形成有容纳所述脱水桶的容纳空间；排水路，设置于所述洗衣机主体，并从下侧与所述容纳空间连接；转动构件，经由在相对于绕所述中心轴线的周向的切线方向延伸的转动轴与所述底壁连结，并能绕所述转动轴上下转动；配重构件，在所述转动构件中固定于比所述转动轴更远离所述中心轴线的部分；以及止水构件，能在关闭位置与打开位置之间在上下方向移动，所述关闭位置是所述止水构件通过从上侧与所述底壁的所述排水口的内周面紧贴而堵住所述排水口的位置，所述打开位置是所述止水构件通过向上侧离开所述内周面而使所述排水口开放的位置，与随所述脱水桶的旋转的所述转动构件的向上的转动相联动，所述止水构件从所述关闭位置上升至所述打开位置。
此外，本发明的特征在于，所述转动构件与所述止水构件连结。
此外，本发明的特征在于，包括：平衡配重，设置于在所述底壁中与所述排水口之间夹住所述中心轴线的位置。
此外，本发明的特征在于，包括：施力构件，对所述转动构件朝下施力。
发明效果
根据本发明，在包括圆周壁和底壁的脱水桶中，位于关闭位置的止水构件通过从上侧与底壁的排水口的内周面紧贴来堵住排水口，因此，能仅在脱水桶中蓄积水来进行洗涤。特别是，脱水桶内的水的重量与止水构件的自重一起从上侧施加给通过从上侧与排水口的内周面紧贴来堵住排水口的止水构件。由此，越是在脱水桶内蓄积水，止水构件相对于排水口的内周面的密合性越会提高，因此，能通过止水构件可靠地堵住排水口，并能可靠地在脱水桶内蓄积水。
例如，在脱水时，当容纳有洗涤物的脱水桶绕圆周壁的中心轴线被驱动旋转时，在固定于转动构件的、比转动轴更远离中心轴线的部分的配重构件产生由脱水桶的旋转产生的离心力，转动构件通过该离心力朝上转动。与转动构件的朝上的转动相联动，止水构件通过从关闭位置上升至打开位置而使排水口敞开，因此，能将脱水桶内的水可靠地排出。
此外，根据本发明，固定有配重构件的转动构件与止水构件连结。由此， 能利用转动构件以及配重构件的重量，进一步提高位于关闭位置的止水构件相对于排水口的内周面的密合性，因此，能通过止水构件可靠地堵住排水口，并能可靠地在脱水桶内蓄积水。
此外，根据本发明，在脱水桶旋转的过程中，平衡配重与配重构件取得平衡，因此，能抑制由配重构件引起的脱水桶的偏心旋转。
此外，根据本发明，通过利用对转动构件朝下施力的施力构件的施加力，即使不增加配重构件的重量，也能进一步提高位于关闭位置的止水构件相对于排水口的内周面的密合性。由此，能抑制因增加配重构件的重量所引起的脱水桶的重量化，并且能通过止水构件可靠地堵住排水口，并能可靠地在脱水桶内蓄积水。
附图说明
图1是本发明的一个实施方式的洗衣机的纵剖右侧视图。
图2是洗衣机的洗衣机主体的俯视图。
图3是洗衣机中所包括的脱水桶的纵剖右侧视图。
图4是脱水桶的底壁的俯视图。
图5是在图1中用虚线的圆围起来的部分的放大图。
图6是从下侧观察脱水桶的立体图。
图7是包括纵剖面的脱水桶以及旋转构件的立体图。
具体实施方式
以下，参照附图，对本发明的实施方式进行具体说明。图1是本发明的一个实施方式的洗衣机1的纵剖右侧视图。以下，将图1的上下方向称为洗衣机1的上下方向Z，将图1的左右方向称为洗衣机1的前后方向Y，将与图1的纸面正交的方向称为洗衣机1的左右方向X。上下方向Z包括：相当于图1的上侧的上侧Z1、以及相当于图1的下侧的下侧Z2。前后方向Y包括：相当于图1的左侧的前侧Y1、以及相当于图1的右侧的后侧Y2。左右方向X包括：相当于图1的纸面里侧的左侧X1、以及相当于图1的纸面跟前侧的右侧X2。左右 方向X以及前后方向Y包括在横向中。
洗衣机1的尺寸既可以是与普通的家庭用洗衣机相同程度的大小，也可以是例如能设置成台式程度的小型。洗衣机1具有包含在上下方向Z延伸的中心轴线J的大致圆筒状的整体形状。以下，将绕中心轴线J的周向称为周向Q，将以中心轴线J为基准的径向称为径向R。周向Q以及径向R包括在横向、即水平方向中。径向R当中，将靠近中心轴线J的方向称为径向内侧R1，将远离中心轴线J的方向称为径向外侧R2。洗衣机1包括：洗衣机主体2、门3、脱水桶4、以及旋转构件5。以下，按照洗衣机主体2、门3、脱水桶4以及旋转构件5的顺序进行说明。
洗衣机主体2形成为有底筒状。洗衣机主体2包括：圆筒状的圆周壁10，具有与中心轴线J一致的中心轴线；延伸设置部11，设置于圆周壁10的外周面的圆周上的一个部位；以及圆盘状的底壁12，同轴状地与圆周壁10的下端缘连接。从径向外侧R2由圆周壁10围住并从下侧Z2由底壁12堵住的空间是形成于洗衣机主体2的容纳空间2A。容纳空间2A形成为具有与中心轴线J一致的中心轴线的圆筒状。
由圆周壁10的上端部围住的区域构成位于洗衣机主体2的上端的拆装口2B。拆装口2B使洗衣机主体2的容纳空间2A向上侧Z1开放。延伸设置部11设置于圆周壁10的后侧Y2的外周面，并向后侧Y2突出，并形成为在上下方向Z延伸的柱状。
底壁12的上表面部包括：中央部12A，位于中心轴线J的周围；外周部12B，从径向外侧R2围住中央部12A，并位于低于中央部12A的位置；以及中途部12C，位于径向R上的中央部12A与外周部12B之间。中央部12A、外周部12B以及中途部12C形成为在周向Q延伸的圆环状。中央部12A以及外周部12B沿横向大致平坦地延伸，而中途部12C以随着朝向径向外侧R2而偏向下侧Z2的方式相对于横向倾斜，并架设在中央部12A的外周缘与外周部12B的内周缘之间。在中央部12A形成有：圆形状的开口部12D，具有与中心轴线J一致的中心轴线；以及圆环状的凸缘部12E，对开口部12D进行修边并向上侧Z1突出。
具有这样的上表面部的底壁12随着靠近中心轴线J而在上下方向Z加厚，但其是空心体。底壁12内置有：固定部13、支承部14、驱动轴15、电机16、 排水路17、以及排水机构18。
固定部13形成为沿周向Q延伸的圆环状，在底壁12的上表面部的中央部12A的正下方固定于底壁12。可以将固定部13看作是底壁12的一部分。在固定部13的下表面部形成有圆筒状的筒部13A，其对固定部13的内周面进行修边并向下侧Z2突出。
支承部14一体地包括：圆盘状的圆盘部14A，具有与中心轴线J一致的中心轴线；以及圆筒状的筒部14B，从圆盘部14A的下表面部的中心向下侧Z2突出。在圆盘部14A的上表面部的中央部形成有向下侧Z2延伸的贯通孔14C。筒部14B的内部空间是贯通孔14C的一部分。
支承部14处于如下的状态：圆盘部14A从上侧Z1嵌入至固定部13的内侧空间，筒部14B穿过固定部13的内侧，筒部14B的下端部从固定部13的筒部13A的内部向下侧Z2露出。支承部14由夹插在筒部13A与筒部14B之间的轴承19旋转自如地支承。轴承19的上侧Z1的固定部13与筒部14B的间隙由油封等环状的密封构件20堵住。圆盘部14A与固定部13的间隙由其他密封构件21堵住。圆盘部14A的上表面部从底壁12的上表面部的中央部12A的开口部12D向上侧Z1露出。
驱动轴15形成为具有与中心轴线J一致的中心轴的圆柱状。在驱动轴15的上端面形成有向下侧Z2凹陷的凹状的接纳部15A。沿横向被切割时的接纳部15A的剖面是六边形等大致多边形(参照后述的图2)。驱动轴15插通至支承部14的贯通孔14C。驱动轴15的上端面配置为：在支承部14的圆盘部14A的上表面部从贯通孔14C向上侧Z1露出，驱动轴15的下端部配置为：从支承部14的筒部14B向下侧Z2露出。驱动轴15由夹插在驱动轴15与支承部14之间的轴承22旋转自如地支承。圆盘部14A与驱动轴15的上端部的间隙由油封等环状的密封构件23堵住。
电机16从下侧Z2固定于固定部13。在洗衣机主体2的任意位置，设置有由微型计算机等构成的控制部24，电机16通过由控制部24控制驱动来产生驱动力。电机16所产生的驱动力选择性地传递给支承部14以及驱动轴15的每一个。由此，支承部14以及驱动轴15分别沿绕中心轴线J的周向Q被分开地驱动旋转。
排水路17在底壁12内延伸。排水路17的一端作为出口17A，配置于底壁12的上表面部的外周部12B的圆周上的一个部位(参照图2)，排水路17的另一端(未图示)被引出至洗衣机主体2外。严格来讲，出口17A在底壁12的上表面部的外周部12B与中途部12C的边界处，横跨外周部12B和中途部12C而形成，从下侧Z2与洗衣机主体2的容纳空间2A连接。在底壁12的下表面部设置有腿部25，在将洗衣机1载置于地板等载置面时，腿部25与载置面接触。腿部25也可以设置于延伸设置部11的下表面部。
排水机构18包括：销26，在上下方向Z延伸；以及促动器27，由螺线管等构成，并使销26在上下方向Z滑动。销26配置于底壁12的上表面部的外周部12B的圆周上的一个部位，详细地说，配置于周向Q上与出口17A偏离180度的后侧Y2的位置(参照图2)。销26的上侧Z1的顶端部26A从底壁12向上侧Z1露出。销26能够响应于促动器27的驱动，在上方位置(参照图1)与上方位置的下侧Z2的下方位置(未图示)之间在上下方向Z滑动。促动器27的驱动由控制部24控制。销26通常配置于下方位置。
接着，对门3进行说明。门3对洗衣机主体2的拆装口2B进行开闭。门3一体地包括：门主体部30，形成为在上下方向Z具有厚度的圆盘状；以及门连结部31，从门主体部30的后侧Y2的外周面向后侧Y2突出。门主体部30的外径与洗衣机主体2的圆周壁10的外径大致相同。门连结部31经由在相对于门主体部30的周向的切线方向延伸的连结轴32与延伸设置部11的上端部连结。由此，门3由洗衣机主体2支承。门3能够在呈水平的关闭位置(参照图1)与呈大致垂直的打开位置(未图示)之间绕连结轴32转动。
对于处于关闭位置的门3而言，门主体部30与洗衣机主体2同轴状地配置，从上侧Z1将洗衣机主体2的拆装口2B关闭，由此，对洗衣机主体2的容纳空间2A进行封闭。对于处于打开位置的门3而言，由于门主体部30从拆装口2B偏向后侧Y2，因此，在拆装口2B的正上方不存在门3，拆装口2B的整个区域向上侧Z1开放。
接着，对脱水桶4进行说明。图3是脱水桶4的纵剖右侧视图。脱水桶4形成为有底圆筒状。脱水桶4包括：圆筒状的圆周壁35，具有与中心轴线J一致的中心轴线；圆环状的环构件36，同轴状地安装于圆周壁35的上端部；把手 37，安装于环构件36；以及圆盘状的底壁38，从下侧Z2与圆周壁35的下端缘同轴状地连接。
圆周壁35例如为金属制。径向R上的圆周壁35的厚度在上下方向Z以及周向Q的大致整个区域为恒定，圆周壁35随着朝向上侧Z1而缩径。因此，圆周壁35的外周面35A以及内周面35B形成为：从圆周壁35的上端35C逐渐向下端35D扩径。外周面35A以及内周面35B各自相对于上下方向Z的倾斜角度至少为1度以上，但为几度左右的小值。需要说明的是，在该实施方式中，若至少内周面35B形成为从上端35C逐渐向下端35D扩径即可，外周面35A也可以垂直地延伸。
在圆周壁35的外周面35A的下端部一体地设置有圆环状的凸缘构件40，其对该下端部进行修边并在周向Q延伸。凸缘构件40例如为树脂制。凸缘构件40的下部分40A相比于凸缘构件40的上部分40B为大径，并配置为：遍及周向Q的整个区域向圆周壁35的下端35D的下侧Z2露出。凸缘构件40的下部分40A与上部分40B的边界部分是在径向R延伸的横部分40C。在这样的凸缘构件40的圆周上的一个部位切割时的剖面形成为大致曲柄状。
在圆周壁35的内周面35B的下端部安装有圆环状的间隙填埋构件41，其对该下端部进行修边并在周向Q延伸。间隙填埋构件41例如为树脂制。间隙填埋构件41一体地包括：纵向部分41A，沿内周面35B上下延伸；以及横部分41B，从纵向部分41A的下端部向径向内侧R1突出。因此，在圆周上的一个部位被切割时的间隙填埋构件41的剖面形成为大致L字状。纵向部分41A的下端位于与内周面35B的下端35D在上下方向Z大致相同的位置。在间隙填埋构件41沿周向Q并排地形成有在上下方向Z贯通纵向部分41A的多个槽口41C。在各槽口41C中，上下方向Z上的整个区域朝向径向外侧R2的内周面35B开放。
环构件36例如为树脂制。环构件36一体地包括：下部分36A，对圆周壁35的外周面35A的上端部进行修边；以及上部分36B，从圆周壁35的内周面35B向上侧Z1以及径向内侧R1这两方露出。因此，在圆周上的一个部位被切割时的环构件36的剖面形成为大致曲柄状。贯通了圆周壁35的内周面的螺钉等紧固构件42组装于下部分36A，由此，环构件36固定于圆周壁35的上端部，并构成脱水桶4的一部分。由上部分36B围住的区域构成位于脱水桶4的上端 的放入取出口4A。
在环构件36的例如在周向Q偏离180度的两个部位一体地设置有把持部43。各把持部43作为环构件36的上部分36B的一部分形成为在周向Q延伸的块状。在各把持部43中，径向R的两个侧面形成为凹弯曲的曲面状(参照后述的图7)。在环构件36，由下部分36A的上表面和上部分36B的外周面形成有台阶36C。台阶36C隔着中心轴线J存在两个，并在两个把持部43之间形成为在周向Q延伸的圆弧状(参照图7)。各台阶36C向径向外侧R2以及上侧Z1开放。
把手37由金属丝等形成为在周向Q延伸的圆弧状，在各台阶36C各存在一个。各把手37的两端部37A向径向内侧R1折弯。在环构件36的上部分36B的与各把手37的两端部37A在周向Q上一致的位置处，各形成有一个在径向R延伸的贯通孔36D，各把手37的两端部37A逐个从径向外侧R2插通至在周向Q上一致的贯通孔36D。由此，各把手37由环构件36支承，能够以两端部37A为中心转动。详细地说，各把手37在如图3所示呈水平地接纳于台阶36C的接纳位置与被从台阶36C向上侧Z1引出并呈大致垂直的引出位置(未图示)之间进行转动。
底壁38例如为树脂制，具有与上下方向Z一致的板厚方向。底壁38一体地包括：中央部38A，位于中心轴线J的周围；外周部38B，从径向外侧R2围住中央部38A并位于低于中央部38A的位置；以及中途部38C，位于径向R的中央部38A与外周部38B之间。中央部38A、外周部38B以及中途部38C形成为在周向Q延伸的环状，具有大致相同的板厚。中央部38A以及外周部38B沿横向平坦地延伸，而中途部38C以随着朝向径向内侧R1而偏向上侧Z1的方式相对于横向倾斜，并架设在中央部38A的外周缘与外周部38B的内周缘之间。因此，中央部38A以及外周部38B各自的上表面部沿横向是平坦的，而中途部38C的上表面部相对于横向倾斜。
在中央部38A的中心形成有在上下方向Z贯通中央部38A的圆形状的贯通孔38D。中央部38A的对贯通孔38D进行修边的内周面38E形成为随着朝向下侧Z2而缩径的锥形状。在中央部38A一体地形成有圆筒状的筒部38F，其从中央部38A的下表面部的外周部向下侧Z2突出并围住贯通孔38D。
在外周部38B的圆周上的一个部位形成有在上下方向Z贯通外周部38B的 圆形状的排水口38G。外周部38B的对排水口38G进行修边的内周面38H形成为随着朝向下侧Z2而缩径的锥形状。因此，排水口38G形成为随着朝向下侧Z2而缩径的大致圆锥台形状。在外周部38B的下表面部形成有圆筒状的引导部38I，其围住排水口38G并向下侧Z2突出。在外周部38B一体地设置有外缘部38J，其遍及整个区域对外周部38B的外周缘进行修边并向上侧Z1延伸。外缘部38J处于从径向内侧R1与圆周壁35的凸缘构件40的下部分40A接触的状态。螺钉等紧固构件44从径向外侧R2贯通下部分40A并组装于外周部38B。由此，底壁38固定于圆周壁35。从径向外侧R2由圆周壁35围住并从下侧Z2由底壁38堵住的空间是脱水桶4的内部空间4B。内部空间4B从放入取出口4A向上侧Z1开放。圆周壁35的内周面35B随着朝向下侧Z2而逐渐扩径，与之相应地，内部空间4B随着朝向下侧Z2而向径向外侧R2慢慢扩大。内部空间4B容纳有洗涤物。
参照作为底壁38的俯视图的图4，在底壁38中，中央部38A以及中途部38C具有与中心轴线J一致的中心轴线，并形成为与圆周壁35的内周面35B的上端35C(参照单点划线的圆)以及下端35D(参照虚线的圆)同轴状地配置的正圆的环状。另一方面，外周部38B及其外缘部38J严格地说，形成为具有穿过中心轴线J和排水口38G的中心的长轴L(参照双点划线)的大致椭圆的环状，长轴L的中点、即外周部38B的中心K与中心轴线J不一致，配置为比中心轴线J偏向排水口38G侧。需要说明的是，围住具有这样的大致椭圆的轮廓的外周部38B的外缘部38J的凸缘构件40的下部分40A(参照图3)也形成为俯视时与外缘部38J一致的大致椭圆的环状。
大致椭圆的环状的外周部38B的长轴L的长度L1大于下端35D的圆周壁35的内周面35B的直径D1。然后，长轴L的排水口38G侧的相反侧的端L2配置为：在俯视时与下端35D的圆周上的一个部位大致一致。因此，如图4中的剖面线所示，在底壁38的、内周面35B的下端35D的下侧Z2的区域形成有凹部38K，其在俯视时形成为沿下端35D延伸的大致环状，并向下端35D的径向外侧R2凹陷。凹部38K是由凸缘构件40的横部分40C(参照图3)和外周部38B从上下方向Z夹住、并从径向外侧R2由外周部38B的外缘部38J堵住的空间，其构成脱水桶4的内部空间4B的下端部。内部空间4B形成为：在从 内周面35B的上端35C到下端35D的范围，如上所述，随着朝向下侧Z2而向径向外侧R2慢慢扩大，在下端35D的下侧Z2的下端部，通过凹部38K向径向外侧Z2越发扩大(参照图3)。
凹部38K是底壁38的、从下侧Z2与下端35D邻接、并不会向内周面35B的径向内侧R1突出的非突出部的一个例子。凹部38K形成为：在周向Q上越是靠近排水口38G的区域，越向径向外侧R2扩大、即变深。因此，凹部38K的、在周向Q上与排水口38G一致的排水口区域38L向径向外侧R2最扩大。另一方面，对于凹部38K而言，在周向Q上越是远离排水口38G并越靠近长轴L的端L2，在径向R上就越缩小、即变浅。凹部38K也可以在端L2处中断，在该情况下，端L2的外周部38B的外缘部38J的内周面38M作为所述的非突出部的其他例子，其配置为：与下端35D连续，并与内周面35B拉平(参照图3)。
排水口38G的至少一部分配置为：俯视时与内周面35B的下端35D重叠。因此，排水口38G的一部分俯视下与凹部38K的排水口区域38L重叠，并位于内周面35B的下端35D的径向外侧R2。或者，也可以是：排水口38G的任何部分均不位于下端35D的径向外侧R2，排水口38G的端缘在径向R上位于与下端35D相同的位置。
参照图3，脱水桶4还包括：安装于底壁38的支承轴50、连结构件51、开闭机构52以及腿构件53。支承轴50为金属制，具有与中心轴线J一致的中心轴线，并形成为在上下方向Z延伸的柱状。在支承轴50的下端部形成有下侧卡合部50A，在支承轴50的上端部形成有上侧卡合部50B。沿横向分别将上侧卡合部50B以及下侧卡合部50A切割时的剖面为六边形等大致多边形。支承轴50的下侧卡合部50A与上侧卡合部50B之间的中途部50C具有在周向Q延伸的圆周状的外周面。中途部50C比上侧卡合部50B以及下侧卡合部50A粗。在中途部50C的外周面的上端部形成有一个在周向Q延伸的环状的槽50D。在中途部50C的外周面的、槽50D的下侧Z2一体地形成有圆环状的凸缘部50E，其向径向外侧R2伸出后向下侧Z2折弯。
支承轴50插通至底壁38的中央部38A的贯通孔38D，由此在中心轴线J贯通底壁38。在支承轴50中，下侧卡合部50A向中央部38A的下侧Z2突出， 上侧卡合部50B向中央部38A的上侧Z1突出。此外，在支承轴50中，槽50D位于与贯通孔38D大致相同的高度位置，凸缘部50E位于与中央部38A的下侧Z2的筒部38F大致相同的高度位置，处于从径向外侧R2以非接触的方式由筒部38F围住的状态。
连结构件51为金属制。连结构件51形成为具有与中心轴线J一致的中心轴线、以及与上下方向Z一致的板厚方向的圆盘状。连结构件51的外径与筒部38F的外径大致相同。在连结构件51的中心形成有在上下方向Z贯通连结构件51的贯通孔51A。在连结构件51的上表面部一体地形成有：圆筒状的内侧筒部51B，对贯通孔51A进行修边并向上侧Z1突出；以及圆筒状的外侧筒部51C，围住内侧筒部51B并向上侧Z1突出。
连结构件51从下侧Z2安装于底壁38的中央部38A。此时，连结构件51的外周部处于从下侧Z2与中央部38A的筒部38F的下端面接触的状态。螺钉等紧固构件54从下侧Z2贯通连结构件51的外周部并组装于筒部38F。由此，连结构件51同轴状地固定于中央部38A，并成为底壁38的一部分。
在连结构件51中，贯通孔51A中插入有支承轴50的中途部50C。支承轴50的下侧卡合部50A从贯通孔51A露出，并向连结构件51的下表面部的下侧Z2突出。在连结构件51中，内侧筒部51B内嵌至中途部50C的凸缘部50E，外侧筒部51C内嵌至筒部38F。支承轴50处于在凸缘部50E中从上侧Z1卡在内侧筒部51B，由此相对于连结构件51在上下方向Z上被定位的状态。在连结构件51的、贯通孔51A的内周面与中途部50C的外周面的间隙配置有轴承55。由此，支承轴50以能够绕中心轴线J旋转的状态，由连结构件51以及底壁38支承。
在支承轴50的凸缘部50E与围绕凸缘部50E的连结构件51的外侧筒部51C的径向R的间隙嵌入有圆环状的密封构件56。此外，在底壁38的筒部38F的下端面，在组装有紧固构件54的螺纹孔38N的径向内侧R1形成有在周向Q延伸的圆环状的槽38O。在槽38O嵌入有圆环状的其他密封构件57。穿过底壁38的贯通孔38D并朝向底壁38的下侧Z2的间隙形成为相邻构件的边界，但该间隙由密封构件56以及密封构件57堵住。因此，在水蓄积于脱水桶4内的情况下，能防止脱水桶4内的水通过该间隙漏出。
开闭机构52是用于对脱水桶4的底壁38的排水口38G进行开闭的机构。参照将图1中用虚线的圆围成的部分放大后的图5、以及作为从下侧Z2观察脱水桶4的立体图的图6，开闭机构52包括：固定构件60、转动构件61、转动轴62、配重构件63、施力构件64、支承构件65、止水构件66、以及夹入部67。
固定构件60一体地包括：横部分60A，具有与上下方向Z一致的板厚方向；以及纵向部分60B，从横部分60A向下侧Z2突出。横部分60A经由螺钉等紧固构件68从下侧Z2固定于脱水桶4的底壁38的外周部38B的从径向内侧R1与引导部38I邻接的部分。纵向部分60B存在一对，在相对于周向Q的切线方向T上并排地配置。
转动构件61形成为平板的杆状，配置于排水口38G以及引导部38I的正下方。转动构件61的径向内侧R1的端部由一对纵向部分60B夹住。转动轴62在切线方向T延伸，并连结转动构件61和一对纵向部分60B。由此，转动构件61在以随着朝向径向外侧R2而偏向下侧Z2的方式倾斜的姿势下，经由转动轴62以及固定构件60与底壁38连结，并能够绕转动轴62上下转动。
配重构件63例如为金属制，其一体地包括：平板状的横部分63A，具有与转动构件61一致的板厚方向；以及一对纵向部分63B，从切线方向T的横部分63A的两端部向上侧Z1延伸。在横部分63A的上表面部一体地设置有向上侧Z1突出的突出部63C。在突出部63C形成有沿径向R贯通突出部63C的孔63D(参照图5)。横部分63A从上侧Z1与转动构件61的比转动轴62靠近径向外侧R2的部分、即转动构件61的比转动轴62更远离中心轴线J的部分重叠，并经由螺钉等紧固构件69固定于该部分。
施力构件64例如是卷绕在转动轴62的扭转螺旋弹簧。施力构件64具有从卷绕在转动轴62的部分延伸出来的两个臂部64A。一个臂部64A插入至形成于配重构件63的突出部63C的孔63D，另一个臂部64A插入至形成于固定构件60的横部分60A的孔60C(参照图5)。该状态的施力构件64始终对转动构件61朝下施力。
支承构件65例如为金属制，一体地包括：圆筒状的主体部65A，具有在上下方向Z延伸的中心轴线；以及一对伸出部65B，从主体部65A的下端向切线方向T的两外侧伸出后向上侧Z1折弯。主体部65A从下侧Z2按如下顺序包括 下部65C、中途部65D以及上部65E。主体部65A的外径设定为：按照下部65C、中途部65D以及上部65E的顺序逐渐变小。下部65C的外径比脱水桶4的底壁38的引导部38I的内径稍小。中途部65D的外径比底壁38的排水口38G的下端的内径稍小。上部65E从下侧Z2按如下顺序包括第一上部65F、第二上部65G以及第三上部65H。上部65E的外径设定为：按照第一上部65F、第二上部65G以及第三上部65H的顺序逐渐变小。在下部65C的下表面部形成有：向上侧Z1凹陷的圆环状的凹部65I、以及在凹部65I内向下侧Z2突出的突出部65J。
支承构件65配置于转动构件61的正上方，支承构件65的主体部65A保有游隙地从下侧Z2嵌入至脱水桶4的底壁38的引导部38I以及排水口38G。详细地说，在支承构件65中，下部65C嵌入至引导部38I，中途部65D以及上部65E嵌入至排水口38G。支承构件65在下部65C由引导部38I引导，由此，能够在上下方向Z移动。支承构件65的一对伸出部65B配置为：以非接触的方式从切线方向T的两侧夹住引导部38I。固定于转动构件61的配重构件63的一对纵向部分63B相对于支承构件65的一对伸出部65B配置于切线方向T的外侧。相邻的纵向部分63B和伸出部65B通过在切线方向T延伸的连结轴70连结。伸出部65B的插通有连结轴70的插通孔(未图示)是在上下方向Z长的长孔，因此，连结轴70在该插通孔内上下移动，由此，配重构件63和支承构件65至少在上下方向Z保有少许游隙地连结。支承构件65与转动构件61以及配重构件63一起被施力构件64向下侧Z2施力。
止水构件66例如是橡胶制的阀，形成为具有在上下方向Z延伸的中心轴线的大致圆筒状。在止水构件66的中心形成有在上下方向Z贯通止水构件66的贯通孔66A。在贯通孔66A的下端部，内径越发地大。止水构件66的外周面66B形成为随着朝向下侧Z2而缩径的锥形状。因此，止水构件66严格地说具有大致圆锥台形状的整体形状。止水构件66从上侧Z1载置于支承构件65的主体部65A的中途部65D。在主体部65A中，第一上部65F从下侧Z2嵌入至贯通孔66A的下端部，第二上部65G配置于贯通孔66A内，第三上部65H配置为从贯通孔66A向上侧Z1露出。止水构件66的、形成于划分贯通孔66A的内周面的环状的凸部66C被第二上部65G压扁，由此堵住贯通孔66A的止水构件66与第二上部65G的间隙。与凸部66C同样的凸部66D也形成于外周面66B。
夹入部67例如是圆环状的垫圈，从上侧Z1载置于止水构件66的上表面部。支承构件65的主体部65A的第三上部65H插通至夹入部67的中心的孔。另一个垫圈75载置于夹入部67上，螺钉等紧固构件71穿过夹入部67以及垫圈75的内侧而组装于支承构件65的上部65E。由此，止水构件66在从上下方向Z由主体部65A和夹入部67夹入的状态下，被它们固定。因此，止水构件66经由支承构件65连结于转动构件61，转动构件61与配重构件63以及支承构件65一起被施力构件64向下侧Z2施力。
止水构件66配置于脱水桶4的底壁38的排水口38G。止水构件66能够随着转动构件61的转动，与支承构件65一起在打开位置与关闭位置之间在上下方向Z移动。图5所示的止水构件66位于打开位置，止水构件66的外周面66B向上侧Z1远离底壁38的对排水口38G进行修边的内周面38H。因此，在止水构件66位于打开位置时，外周面66B与内周面38H的间隙扩大，由此排水口38G开放。止水构件66当随着转动构件61向下侧Z2的转动、从打开位置下降时，会到达关闭位置(参照图3)。在位于关闭位置的止水构件66中，外周面66B的凸部66D被内周面38H压扁，外周面66B从上侧Z1紧贴内周面38H的周向的整个区域。因此，在止水构件66位于关闭位置时，排水口38G被堵住。如前所述，被向下侧Z2施力的止水构件66处于被向关闭位置施力的状态。
腿构件53例如为金属制，并存在有多个。参照图6，在该实施方式中，三个腿构件53在底壁38的外周部38B的下表面部、在周向Q例如等间隔地并排地配置。各腿构件53一体地包括：弯曲部53A，向下侧Z2突出并沿周向Q弯曲；以及一对折弯部53B，从弯曲部53A的两端部向径向内侧R1折弯。螺钉等紧固构件72贯通各折弯部53B并组装于底壁38，由此，各腿构件53固定于底壁38。三个腿构件53中的一个腿构件53C配置于在周向Q上以180度远离开闭机构52的位置，详细地说，配置于底壁38的、在与排水口38G之间夹住中心轴线J的位置。在底壁38的下表面部的由腿构件53C围住的部分，固定有例如平板状的平衡配重73。
虽然图6中省略了图示，但在底壁38的下表面部的开闭机构52的周围，安装有具有与腿构件53近似的形状的保护构件74(参照图3)。开闭机构52由保护构件74从周向Q的两侧以及径向外侧R2进行保护。各腿构件53以及保护 构件74的下端在脱水桶4内位于最下侧Z2。因此，在整体的脱水桶4载置于地板面等载置面的情况下，各腿构件53以及保护构件74的下端与载置面接触，由此，连结构件51和开闭机构52远离载置面，因此，能防止连结构件51、开闭机构52与载置面碰撞而破损。
参照图1，脱水桶4容纳于洗衣机主体2的容纳空间2A。在脱水桶4中，底壁38的连结构件51从上侧Z1嵌入至洗衣机主体2的底壁12的中央部12A的开口部12D，以能够一体旋转的方式与底壁12内的支承部14的圆盘部14A连结。因此，当支承部14被电机16驱动旋转时，脱水桶4与支承部14一起绕中心轴线J被驱动旋转。此外，在以能够旋转的方式由底壁38支承的支承轴50中，下侧卡合部50A从上侧Z1嵌入至洗衣机主体2的驱动轴15的接纳部15A，由此，支承轴50以能够一体旋转的方式与驱动轴15连结。当驱动轴15被电机16驱动旋转时，支承轴50与驱动轴15一起绕中心轴线J被驱动旋转。在洗衣机主体2的底壁12中，外周部12B以及中途部12C隔有间隔地从下侧Z2与容纳空间2A内的底壁38对置。
需要说明的是，例如也可以将脱水桶4向周向Q挪动而抬起，由此，脱水桶4相对于支承部14的锁定被解除，脱水桶4能与洗衣机主体2脱离。在该情况下，按照与脱离相反的顺序，脱水桶4相对于支承部14被锁定而装接于洗衣机主体2。在相对于洗衣机主体2拆装脱水桶4时，脱水桶4的把持部43由使用者把持。此外，使用者将脱水桶4的把手37转动至上述的取出位置(未图示)之后将其抓住，由此，能使脱离后的脱水桶4整体移动。
图7是包括底壁38四周的纵剖面的脱水桶4以及旋转构件5的立体图。接着，对旋转构件5进行说明。旋转构件5大部分为树脂制，形成为具有与中心轴线J一致的中心轴线的圆盘状。旋转构件5包括：构成其大部分的圆盘状的主体部80、以及用于相对于脱水桶4拆装旋转构件5的拆装机构81。主体部80的上表面部的径向R的中央部80A向上侧Z1隆起地形成。在中央部80A的中心，形成有向下侧Z2呈半球状凹陷的凹部80B。在主体部80的上表面部的围住中央部80A的外周部80C，在周向Q等间隔地排列形成有多个向上侧Z1隆起的隆起部80D。在外周部80C形成有许多在上下方向Z贯通主体部80的贯通孔80E。
在凹部80B的底也形成有一个贯通孔80E。在中央部80A的夹住凹部80B的底的贯通孔80E的两个部位，各形成有一个在上下方向Z贯通主体部80的插通孔80F。在中央部80A的、凹部80B的下侧Z2，形成有由外周部80C围住并从主体部80的下表面部向下侧Z2敞开的空间82。两个插通孔80F处于从上侧Z1连通至空间82的状态。
拆装机构81是所谓的球锁定机构(ball lock mechanism)，包括：保持构件83、锁定构件84、以及升降构件85。保持构件83形成为具有与中心轴线J一致的中心轴线的圆筒状，在空间82内固定于中央部80A。沿横向被切割时的保持构件83的内部的剖面形成为与脱水桶4的支承轴50的上侧卡合部50B(参照图4)的剖面大致一致的大致多边形。在保持构件83的下端部，在周向Q排列形成有多个在径向R贯通保持构件83的圆形状的保持孔83A。
锁定构件84例如是金属制的球，与保持构件83的保持孔83A对应地存在多个，逐个嵌入至各保持孔83A。各锁定构件84能够以不能从所嵌入的保持孔83A脱落的状态在径向R移动。
升降构件85包括上部86以及下部87。上部86在主体部80的两个插通孔80F之间沿径向R延伸、折弯，并从上侧Z1插通至各插通孔80F。下部87配置于空间82。下部87与上部86的从上侧Z1插通至各插通孔80F的两端部连结。在下部87形成有从上侧Z1插通有保持构件83的贯通孔87A。在贯通孔87A的下部87的内周面，形成有向径向内侧R1突出的环状的凸部87B。
升降构件85能够在图7所示的锁定位置、与锁定位置的上侧Z1的解除位置(未图示)之间进行升降。在位于锁定位置的升降构件85中，凸部87B在上下方向Z位于与各锁定构件84相同的位置，从径向外侧R2按压各锁定构件84，由此，使各锁定构件84的一部分从保持构件83的内周面向径向内侧R1露出。升降构件85始终被设置于旋转构件5内的弹簧等施力构件朝向锁定位置施力。
这样的旋转构件5配置于脱水桶4的内部空间4B的下部。脱水桶4的支承轴50的上侧卡合部50B从下侧Z2插入至旋转构件5的保持构件83的内部，由此，旋转构件5被固定成相对于支承轴50不能在周向Q相对移动。此外，在旋转构件5中，位于锁定位置的升降构件85的凸部87B从径向外侧R2按压各锁定构件84，因此，各锁定构件84的一部分从保持构件83的内周面向径向内侧 R1露出并嵌入至支承轴50的槽50D。由此，旋转构件5被固定成相对于支承轴50不能在上下方向Z相对移动。因此，旋转构件5被支承轴50锁定，以能够绕中心轴线J一体旋转的方式由支承轴50支承。当驱动轴15被洗衣机主体2的电机16驱动旋转时(参照图1)，旋转构件5与驱动轴15以及支承轴50一起绕中心轴线J被驱动旋转。
脱水桶4的内部空间4B的旋转构件5的主体部80处于以非接触的方式由间隙填埋构件41的纵向部分41A从径向外侧R2围住、并从上侧Z1与间隙填埋构件41的横部分41B对置的状态。纵向部分41A处于对主体部80与圆周壁35的内周面35B的下端部的径向R的间隙进行填埋的状态。由此，能抑制配置于内部空间4B的主体部80以及纵向部分41A的上侧Z1的区域的洗涤物S、异物进入该间隙。
该实施方式的旋转构件5相对于脱水桶4能够拆装。在该情况下，当使用者将像图7那样装接于脱水桶4的旋转构件5的上部86向上侧Z1拉拽时，升降构件85上升至解除位置(未图示)。于是，在位于解除位置的升降构件85中，凸部87B向各锁定构件84的上侧Z1偏移，不会从径向外侧R2按压各锁定构件84，因此，各锁定构件84向径向外侧R2移动，由此，不会从保持构件83的内周面露出，从支承轴50的槽50D偏向径向外侧R2。由此，旋转构件5相对于支承轴50的锁定被解除。因此，当使用者继续将上部86向上侧Z1拉拽而抬起旋转构件5时，支承轴50的上侧卡合部50B从旋转构件5的保持构件83脱落。当使用者将旋转构件5移动至脱水桶4的放入取出口4A的上侧Z1时，旋转构件5与脱水桶4脱离。旋转构件5也可以是以不能拆装的方式固定于脱水桶4的结构。
接着，对洗衣机1中执行的洗涤运转进行说明。洗涤运转包括：洗涤过程、洗涤过程后的漂洗过程、以及脱水过程。漂洗过程以及脱水过程可以实施多次，在该情况下，脱水过程也可以在各漂洗过程之后实施。
参照图1，在开始洗涤运转之前，使用者打开门3，将洗衣机主体2的拆装口2B以及脱水桶4的放入取出口4A向上侧Z1敞开，将洗涤物S从放入取出口4A容纳到脱水桶4的内部空间4B之后将门3关上。此时，可以根据需要向内部空间4B投入洗涤剂。内部空间4B中的洗涤物S如上所述配置于主体部80 以及纵向部分41A的上侧Z1的区域，因此，位于脱水桶4的底壁38的凹部38K的上侧Z1。然后，当使用者操作例如设置于门3的表面的开关等操作部(未图示)时，控制部24开始洗涤过程。
在洗涤过程的最初，控制部24通过例如设置于门3的供水机构(未图示)，向脱水桶4的内部空间4B供水。供水机构包括：与水龙头连接的供水路、以及通过控制部24的控制对供水路进行开闭的供水阀。需要说明的是，如上所述，在将洗涤物S投入至脱水桶4内时，也可以通过将例如用水桶汲取的水注入至脱水桶4来进行供水。进而，也可以在开始洗涤运转之前，将预先汲取有水并将其存积在内部空间4B的脱水桶4装接于洗衣机主体2，在该情况下，脱水桶4本身成为水桶。
此处，在脱水桶4中，位于关闭位置的止水构件66从上侧Z1与底壁38的排水口38G的内周面38H紧贴并将排水口38G堵住，因此，在洗衣机1中，能仅在脱水桶4中存积水来进行洗涤(参照图3)。另一方面，在具备脱水桶和水桶的以往的洗衣机中，其中，所述脱水桶是许多排水孔形成于圆周壁的旋转体，所述水桶是容纳脱水桶并存积有水的静止体，必须在水桶设置排水机构，在洗涤运转时，不仅需要脱水桶内填满水，水桶与脱水桶的间隙也需要填满水。相对于这种以往的洗衣机，若为脱水桶4的圆周壁35不存在排水孔、能仅在脱水桶4中存积水来进行洗涤的洗衣机1，则构造变得简单，能抑制洗涤运转时水的使用量。
此外，对于通过从上侧Z1与排水口38G的内周面38H紧贴来堵住排水口38G的止水构件66而言，脱水桶4内的水的重量与止水构件66的自重一起从上侧Z1施加给止水构件66(参照图3)。由此，脱水桶4内越是存积水，止水构件66相对于排水口38G的内周面38H的密合性就越提高。此外，利用与止水构件66连结的转动构件61以及配重构件63的重量，能进一步提高位于关闭位置的止水构件66相对于排水口38G的内周面38H的密合性。以上所带来的结果是，能通过止水构件66可靠地堵住排水口38G，并能可靠地将水存积于脱水桶4中。
此外，通过利用对转动构件61朝下施力的施力构件64的施加力，即使不增加配重构件63的重量，也能进一步提高位于关闭位置的止水构件66相对于 排水口38G的内周面38H的密合性。由此，能抑制因增加配重构件63的重量所引起的脱水桶4的重量化，并且能通过止水构件66可靠地堵住排水口38G，并能可靠地将水存积在脱水桶4内。需要说明的是，如果即使不利用施力构件64的施加力也能确保最起码的止水构件66的密合性的话，则可以省略施力构件64。即使省略施力构件64，止水构件66也能通过自重和支承构件65等的重量从打开位置下降至关闭位置。
然后，控制部24当通过水位传感器(未图示)等确认出在内部空间4B水已存积到规定水位时，通过驱动电机16来使驱动轴15驱动旋转。由此，仅经由支承轴50与驱动轴15连结的旋转构件5绕中心轴线J被驱动旋转。于是，内部空间4B中位于旋转构件5的上侧Z1的洗涤物S通过与旋转的旋转构件5的隆起部80D接触，或者通过随着由旋转构件5在内部空间4B产生的水流而被搅拌。由此，从洗涤物S去除污垢。此外，在向内部空间4B投入有洗涤剂的情况下，洗涤物S的污垢被洗涤剂分解。
在旋转构件5旋转了规定时间之后，控制部24使旋转构件5停止旋转之后，使排水机构18的销26从之前的下方位置上升到图1所示的上方位置。于是，销26的顶端部26A将脱水桶4的开闭机构52的转动构件61从下侧Z2推上去，因此，与转动构件61连结的止水构件66从之前的关闭位置上升到打开位置，并将脱水桶4的底壁38的排水口38G打开。因此，内部空间4B中的水穿过排水口38G，被洗衣机主体2的底壁12的上表面部的中途部12C承接并顺着中途部12C流下来之后，顺着外周部12B流下来并到达出口17A，从排水路17排出至机外。
底壁12的外周部12B非平坦面，以朝向出口17A缓缓下降的方式倾斜地形成，因此，从排水口38G流下来并顺着外周部38B流下的水不会在中途停留，能可靠地到达出口17A。参照图2，出口17A位于相对于排水机构18的销26偏移了180度的旋转对称的位置。因此，在外周部12B的俯视时顺时针朝向出口17A的部分(参照单点划线的箭头)和逆时针朝向出口17A的部分(参照双点划线的箭头)中，能使相对于水平方向的倾斜角度相同，能将销26与出口17A之间的高低差抑制到最小。因此，无论水在外周部38B中顺时针流向出口17A还是逆时针流向出口17A，都能以最短距离到达出口17A。需要说明的是，出 口17A也可以是配置于在周向Q与销26相同的位置的结构。
参照图1，如上所述，当脱水桶4的排水完成时，控制部24使销26下降到下方位置，因此，止水构件66恢复到关闭位置(参照图3)。由此，洗涤过程结束。需要说明的是，在旋转构件5停止旋转的时刻，如果在周向Q上销26与转动构件61不在相同位置的话，控制部24通过驱动电机16来使脱水桶4旋转，由此使转动构件61在周向Q上与销26一致。与此相关地，洗衣机1也可以包括对周向Q上的转动构件61的位置进行感测的传感器(未图示)。
在洗涤过程之后，控制部24开始漂洗过程。在漂洗过程中，控制部24首先向脱水桶4的内部空间4B供水。控制部24当确认出在内部空间4B水、严格地说是自来水已存积到规定水位时，通过驱动电机16而仅使驱动轴15驱动旋转。由此，利用由旋转的旋转构件5在内部空间4B产生的水流对内部空间4B的洗涤物S进行漂洗。在旋转构件5旋转了规定时间之后，控制部24如上所述，通过使排水机构18的销26上升到上方位置并使止水构件66移动到打开位置，来对脱水桶4进行排水。当脱水桶4的排水完成时，控制部24使销26下降到下方位置并使止水构件66恢复到关闭位置。由此，漂洗过程结束。
在漂洗过程之后，控制部24开始脱水过程，通过驱动电机16而仅使支承部14驱动旋转。由此，由支承部14支承的脱水桶4绕与中心轴线J一致的旋转轴线被驱动旋转。此时，排水机构18的销26以不与旋转的脱水桶4接触的方式位于下方位置(参照图5)。由脱水桶4的旋转产生的离心力作用于洗涤物S，由此，洗涤物S的水分被挤出，并朝向圆周壁35的内周面35B向径向外侧R2飞出。内周面35B以从上端35C逐渐向下端35D扩径的方式倾斜地形成，因此，离心力中的向下的成分和重力作用于从洗涤物挤出来并到达内周面35B的水分。由此，该水分变成水滴，沿着该内周面35B的斜度朝向脱水桶4的底壁38流下来。
然后，当脱水桶4的转速上升到规定值时，在脱水桶4的底壁38的开闭机构52中，转动构件61通过随着脱水桶4的旋转而在配重构件63产生的离心力将要向径向外侧R2移动，并反抗施力构件64的施加力向上转动。于是，与转动构件61连结的支承构件65与转动构件61的向上的转动联动，并带着止水构件66上升，因此，止水构件66从之前的关闭位置上升到打开位置，将脱水桶4 的底壁38的排水口38G敞开(也参照图5)。因此，在脱水桶4内从洗涤物S挤出来并流下至底壁38的水穿过排水口38G而流出，如上所述，穿过排水路17并排出至机外。需要说明的是，在旋转的脱水桶4的底壁38中，平衡配重73与配重构件63取得平衡，因此，能抑制由配重构件63引起的脱水桶4的偏心旋转。因此，能抑制由脱水桶4的偏心旋转引起的振动产生。
此处，设想与本实施方式不同的比较例，其通过止水构件66从下侧Z2堵住底壁38的排水口38G。在比较例中，为了抵抗脱水桶4内的水压使止水构件66移动而堵住排水口38G，需要大的力，与之相应地，为了打开排水口38G也需要大的离心力。这样一来，为了产生大的离心力，必须使脱水桶4的转速上升到所需以上，因此，恐怕会在脱水桶4的转速上升之前，从洗涤物S挤出来的水存积在脱水桶4内而引起脱水桶4的偏心旋转。但是，如果是具有通过止水构件66从上侧Z1堵住排水口38G的结构的本实施方式的话，则能避免这些不良情况。
然后，在脱水桶4旋转了规定时间之后，控制部24使脱水桶4停止旋转。于是，离心力变小，由此，通过施力构件64的施加力使转动构件61以及支承构件65恢复至原来的位置，因此，止水构件66从打开位置恢复至关闭位置(参照图3)。由此，脱水过程结束，并且整个洗涤运转结束。在洗涤运转结束之后，使用者打开门3，收回脱水桶4内的洗涤物S。作为一例，使用者也可以使容纳有洗涤物S的脱水桶4本身与洗衣机主体2脱离。在该情况下，使用者将脱水桶4的把手37转动到拉出位置(未图示)，并抓住把手37，将脱水桶4带到例如晾衣场所，晾干脱水桶4内的洗涤物S。
关于脱水过程中的排水，形成于底壁38的排水口38G的一部分如上所述，位于在径向R上与圆周壁35的内周面35B的下端35D相同的位置，或者位于下端35D的外侧。就是说，下端35D与排水口38G的一部分在径向R上位于相同的位置，下端35D的圆周上的一个部位俯视时与排水口38G的一部分重叠(参照图4)。因此，参照图5，如粗虚线箭头所示，到达圆周壁35的内周面35B的下端35D的水迅速穿过在径向R上位于相同位置的排水口38G并向底壁38的下侧Z2流下来，穿过排水路17(参照图1)并排出至机外。在该情况下，通过脱水产生的水不会附着在脱水桶4的圆周壁35的外周面35A、以及洗衣机主体 2的圆周壁10的围住圆周壁35的内壁面10A，会迅速地排出至机外。因此，能减少洗衣机1内的附着有脱水产生的水的部分，因此，能抑制因该水在脱水桶4及脱水桶4的周围大范围地产生污垢或霉菌，能保持脱水桶4及脱水桶4的周围清洁。此外，从洗涤物S挤出来并到达圆周壁35的内周面35B的下端35D的水被排出，而不会存积在脱水桶4内并重新附着于洗涤物S，因此，能谋求脱水效果的提高，能抑制因水存积在脱水桶4内所引起的脱水桶4的偏心旋转。
此外，在脱水桶4的底壁38的、从下侧Z2与圆周壁35的内周面35B的下端35D邻接的部分，设置有从下端35D向径向外侧R2凹陷的凹部38K、以及外周部38B的外缘部38J的与内周面35B拉平的内周面38M(参照图3)作为上述的非突出部。在图5中，从凸缘构件40的横部分40C的径向内侧R1的端部朝向凹部38K内稍向下侧Z2突出的凸部40D配置为与内周面35B拉平，由此构成非突出部的一个例子。
在脱水时从洗涤物S挤出来并流下到圆周壁35的内周面35B的下端35D的水，在脱水桶4的内部空间4B的下端部，穿过这些非突出部，由此不会阻碍向下的流动，会迅速地穿过排水口38G并排出至机外。因此，能进一步抑制因通过脱水产生的水而在脱水桶4及脱水桶4的周围大范围地产生污垢或霉菌。此外，当以俯视时排水口38G的一部分与凹部38K重叠的方式、将排水口38G配置为靠向凹部38K侧、即径向外侧R2时，排水口38G靠近在内周面35B流下的水的目的地，因此，能提高排水口38G的排水效率。需要说明的是，优选将非突出部设置于底壁38的周向Q的整个区域，但也可以是非突出部仅设置于周向Q的一部分的结构。
此外，如粗虚线箭头所示，在脱水时从洗涤物S挤出来并流下到圆周壁35的内周面35B的下端35D的水的一部分，通过离心力，在凹部38K向径向外侧R2远离脱水桶4内的洗涤物S。由此，能抑制从洗涤物S挤出来的水重新附着于洗涤物S，因此，能进一步谋求脱水效果的提高。
参照图4，凹部38K形成为：在周向Q上越是靠近排水口38G的区域，越向径向外侧R2扩大。在该情况下，从洗涤物S挤出来并从圆周壁35的内周面35B的下端35D进入凹部38K的水通过离心力被导入至该区域、详细地说被导入至排水口区域38L(参照粗虚线箭头)，因此，变得容易到达排水口38G。由 此，进入凹部38K的水迅速地穿过排水口38G并排出至机外。因此，水存积在凹部38K，由此，能抑制脱水桶4内的洗涤物S被浸湿，或者能抑制在脱水桶4的底壁38产生污垢或霉菌。此外，能抑制因水存积在脱水桶4内所引起的脱水桶4的偏心旋转。
参照图5，在对脱水桶4的圆周壁35的内周面35B与旋转构件5的径向R的间隙进行填埋的间隙填埋构件41，形成有在上下方向Z贯通间隙填埋构件41并朝向圆周壁35的内周面35B开放的槽口41C。在该情况下，如粗虚线箭头所示，在脱水时从洗涤物S挤出来并流下到圆周壁35的内周面35B的水会穿过该槽口41C，由此，不会阻碍流动，会迅速地到达内周面35B的下端35D，穿过排水口38G并排出至机外。因此，能获得恒定的脱水效果，并且能进一步抑制因通过脱水产生的水而在脱水桶4及脱水桶4的周围大范围地产生污垢或霉菌。
此外，如上所述，无论在洗涤过程、漂洗过程以及脱水过程中的哪一个过程，若为从脱水桶4的排水口38G进行排水的结构，则将与脱水桶4的止水以及排水相关的结构仅设置在排水口38G这一个部位即可，因此，能谋求简化结构。
本发明并不限定于以上所说明的实施方式，在权利要求记载的范围内能够进行各种变更。
例如，洗衣机1也可以另外具备：外桶(未图示)，配置于洗衣机主体2的容纳空间2A并容纳脱水桶4。
此外，洗衣机1也可以是仅执行脱水过程的脱水机。
附图标记说明
1：洗衣机；
2：洗衣机主体；
2A：容纳空间；
4：脱水桶；
17：排水路；
35：圆周壁；
38：底壁；
38G：排水口；
38H：内周面；
61：转动构件；
62：转动轴；
63：配重构件；
64：施力构件；
66：止水构件；
73：平衡配重；
J：中心轴线；
Q：周向；
T：切线方向；
Z：上下方向；
Z1：上侧；
Z2：下侧。

Claims (4)

  1. 一种洗衣机，包括：
    脱水桶，其包含：圆筒状的圆周壁，具有在上下方向延伸的中心轴线；以及底壁，从下侧与所述圆周壁连接，并形成有在上下方向贯通所述底壁的排水口，所述脱水桶容纳洗涤物，并绕所述中心轴线被驱动旋转；
    洗衣机主体，形成有容纳所述脱水桶的容纳空间；
    排水路，设置于所述洗衣机主体，并从下侧与所述容纳空间连接；
    转动构件，经由相对于绕所述中心轴线的周向的切线方向延伸的转动轴，与所述底壁连结，并能绕所述转动轴上下转动；
    配重构件，在所述转动构件中，固定于比所述转动轴更远离所述中心轴线的部分；以及
    止水构件，能在关闭位置与打开位置之间在上下方向移动，所述关闭位置是所述止水构件通过从上侧与所述底壁的所述排水口的内周面紧贴而堵住所述排水口的位置，所述打开位置是所述止水构件通过向上侧离开所述内周面而使所述排水口开放的位置，并且与随所述脱水桶的旋转的所述转动构件的向上的转动相联动，所述止水构件从所述关闭位置上升至所述打开位置。
  2. 根据权利要求1所述的洗衣机，其中，
    所述转动构件与所述止水构件连结。
  3. 根据权利要求1或2所述的洗衣机，其中，
    包括：平衡配重，设置于在所述底壁中与所述排水口之间夹住所述中心轴线的位置。
  4. 根据权利要求1～3中任一项所述的洗衣机，其中，
    包括：施力构件，对所述转动构件向下施力。
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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
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