WO2019101121A1 - 洗衣机 - Google Patents

洗衣机 Download PDF

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Publication number
WO2019101121A1
WO2019101121A1 PCT/CN2018/116877 CN2018116877W WO2019101121A1 WO 2019101121 A1 WO2019101121 A1 WO 2019101121A1 CN 2018116877 W CN2018116877 W CN 2018116877W WO 2019101121 A1 WO2019101121 A1 WO 2019101121A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulsator
ridge
laundry
washing
inclined surface
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/116877
Other languages
English (en)
French (fr)
Inventor
西浦直人
福井秋陆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Washing Machine Co Ltd
Aqua Co Ltd
Original Assignee
Qingdao Haier Washing Machine Co Ltd
Aqua Co Ltd
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 Qingdao Haier Washing Machine Co Ltd, Aqua Co Ltd filed Critical Qingdao Haier Washing Machine Co Ltd
Priority to CN201880075503.1A priority Critical patent/CN111511972A/zh
Publication of WO2019101121A1 publication Critical patent/WO2019101121A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/06—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by rotary impellers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/06—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by rotary impellers
    • D06F17/10—Impellers

Definitions

  • the present invention relates to a washing machine.
  • Patent Document 1 describes a washing and drying machine including a pulsator disposed at the bottom of the washing and dewatering tub, the surface of which is an approximately mountain-shaped inclined surface which is fan-shaped from the center toward the outer peripheral portion. And a valley portion connecting these inclined faces.
  • a pulsator disposed at the bottom of the washing and dewatering tub, the surface of which is an approximately mountain-shaped inclined surface which is fan-shaped from the center toward the outer peripheral portion. And a valley portion connecting these inclined faces.
  • the pulsator rotates, the laundry slides on the inclined surface and is picked up near the apex. Thereby, a large vertical movement can be given to the laundry.
  • the movement of the laundry at the time of washing is also likely to be a monotonous movement based on the vertical movement. Therefore, although the laundry is not easily kinked and is not easily entangled, the laundry is hard to generate friction or the like with each other, and therefore, the washing performance is liable to be lowered.
  • Patent Document 1 Japanese Patent Laid-Open Publication No. 2005-80946
  • a washing machine includes: a washing tub for accommodating laundry; a pulsator disposed at a bottom of the washing tub; and a driving portion that drives the pulsator.
  • the pulsator comprises: a disk-shaped base having a concave surface; a protrusion protruding from the concave surface at a central portion of the base; and two blade portions protruding from the concave surface in a mountain shape, and The protrusions are opposed to each other.
  • the blade portion includes: a first ridge portion extending in a radial direction of the base portion at a position higher than a top portion of the protrusion portion; and a second ridge portion to continuously and toward the first ridge portion
  • the manner in which the protrusion side is lowered is inclined; the first inclined surface and the second inclined surface are respectively oriented toward the two ridges from the concave sides on both sides of the first ridge and the second ridge in the circumferential direction
  • the portion is inclined in a rising manner; and the ridge portion is provided to protrude from the second ridge portion and extends along the second ridge portion.
  • the laundry is lifted up on the first inclined surface or the second inclined surface by the rotation of the two blade portions, and the vertical movement is facilitated.
  • the laundry rises on the first inclined surface or the second inclined surface by the rotation of the two blade portions, collides with the ridge portion, and moves toward the center side of the pulsator, which is easy to be in the horizontal plane. Stirred inside.
  • the laundry moves in the washing tub in a complicated manner during washing and rinsing, and therefore, the cleaning performance can be expected to be improved.
  • the pulsator is configured to move the laundry in the horizontal plane while moving the laundry up and down, it is not easy to cause strong kinking of the laundry, and entanglement is less likely to occur.
  • the height of the protruding portion may be set to be less than one-half of the height of the blade portion.
  • the space formed between the two blade portions and formed above the protrusion portion can be widened.
  • the laundry which rises on the first inclined surface or the second inclined surface and collides with the ridge portion is likely to move toward the center side of the pulsator, and the movement of the laundry in the horizontal plane is optimized.
  • a configuration in which the inclinations of the first inclined surface and the second inclined surface are different from each other may be employed.
  • the pulsator may further include a rotating body that is rotatably provided above the protruding portion with respect to the protruding portion.
  • the height position of the top of the rotating body is set to be lower than the height position of the uppermost portion of the blade portion.
  • the laundry moves to the center side of the pulsator so as to be transferred by the rotation of the rotating body. Therefore, the laundry can smoothly move in the horizontal plane.
  • the scrubbing effect by the projection can be expected by bringing the laundry into contact with the projection of the rotating body.
  • 1 is a side cross-sectional view of a fully automatic washer-dryer of an embodiment.
  • Fig. 2 is a rear perspective view of the upper portion of the fully automatic washer-dryer of the embodiment.
  • Fig. 3(a) is a perspective view of the pulsator as viewed from above in the embodiment
  • Fig. 3(b) is a perspective view of the pulsator as seen from below in the embodiment.
  • FIG. 4(a) and 4(b) are a plan view and a front view, respectively, of the pulsator of the embodiment, and (c) of Fig. 4 is a pulsator of the embodiment taken along line AA' of Fig. 4(a). Sectional view.
  • FIG. 5 are views for explaining the movement of the laundry when the pulsator of the embodiment is rotated.
  • Fig. 6 is a perspective view of a pulsator as seen from above in a first modification.
  • Fig. 7 is an exploded perspective view of the pulsator as seen from above in the first modification.
  • FIG. 8(a) and 8(b) are a front view and a left side view, respectively, of the pulsator of Modification 1, and (c) of Fig. 8 is a cross section of the pulsator taken along line BB' of Fig. 6 of Modification 1.
  • FIG. 9 are views for explaining the movement of the laundry when the pulsator of the first modification is rotated.
  • 1 automatic washing and drying machine (washing machine); 24: washing dewatering bucket (washing tub); 26: pulsator; 30: driving unit (driving part); 100: base; 102: concave; 110: protrusion; : blade portion; 121: first ridge; 122: second ridge; 123: first inclined surface; 124: second inclined surface; 125: ridge portion; 230: rotating body; 232: protrusion.
  • Fig. 1 is a side cross-sectional view of the fully automatic washer-dryer 1 of the present embodiment.
  • Fig. 2 is a rear perspective view of the upper portion of the fully automatic washer-dryer 1 of the present embodiment.
  • the fully automatic washing and drying machine 1 is provided with a casing 10 constituting an appearance.
  • the casing 10 includes a square tubular body portion 11 having open upper and lower surfaces, an upper panel 12 covering the upper surface of the body portion 11, and a footrest 13 supporting the body portion 11.
  • the upper panel 12 is formed with an outer insertion port 14 for feeding laundry.
  • the outer insertion port 14 is covered by an upper cover 15 that is openable and closable.
  • the outer tub 20 is elastically suspended and supported by four booms 21 having anti-vibration means.
  • the outer tub 20 includes a substantially cylindrical outer tub main body 22a having an open upper surface and an outer tub cover 22b constituting an upper surface of the outer tub 20 by covering an upper surface of the outer tub main body 22a.
  • the outer tub cover 22b which is the upper surface of the outer tub 20, has an inner insertion opening 22c for receiving laundry at a position corresponding to the outer insertion opening 14.
  • the inner insertion port 22c is covered by the outer tub cover 23 so as to be openable and closable.
  • a substantially cylindrical washing and dewatering tub 24 having an open upper surface is disposed in the outer tub 20 .
  • a plurality of dewatering holes 24a are formed over the entire circumference.
  • a balance ring 25 is provided at an upper portion of the washing and dewatering tub 24.
  • a pulsator 26 is disposed at the bottom of the washing and dewatering tub 24. It should be noted that the washing and dewatering tub 24 corresponds to the washing tub of the present invention.
  • a drive unit 30 that generates a torque that drives the washing and dewatering tub 24 and the pulsator 26 is disposed at the outer bottom of the outer tub 20.
  • the drive unit 30 includes a drive motor 31 and a transmission mechanism portion 32.
  • the transmission mechanism portion 32 has a clutch mechanism by which the torque of the drive motor 31 is transmitted only to the pulsator 26 during the washing process and the rinsing process, and only the pulsator 26 is rotated, which is driven during the dehydration process.
  • the torque of the motor 31 is transmitted to the pulsator 26 and the washing and dewatering tub 24 to integrally rotate the pulsator 26 and the washing and dewatering tub 24.
  • the drive unit 30 corresponds to the drive unit of the present invention.
  • a drain port portion 20a is formed at the outer bottom of the outer tub 20.
  • a drain valve 40 is provided in the drain port portion 20a.
  • the drain valve 40 is connected to the drain hose 41. When the drain valve 40 is opened, the water stored in the washing and dewatering tub 24 and the tub 20 is discharged to the outside of the body through the drain hose 41.
  • a drying device 50 and a water supply device 60 are disposed above the outer tub 20.
  • the drying device 50 and the water supply device 60 are attached to the fixing plate 16 disposed at the rear of the upper surface of the body portion 11, and are covered by the upper panel 12.
  • the drying device 50 dries the laundry contained in the washing and dewatering tub 24.
  • the drying device 50 includes a heater and a circulation air passage 50a equipped with a blower fan 50a that is connected to the inside of the outer tub 20 through an intake duct 71 and an exhaust duct 72.
  • the intake duct 71 and the exhaust duct 72 are flexible ducts formed of an elastic material such as rubber, and the intermediate portion has a serpentine portion (not shown).
  • the warm air generated by the operation of the heater and the blower fan is discharged from the circulation air passage 50a, and is introduced into the outer tub 20 through the intake duct 71. Further, the warm air discharged from the outer tub 20 is introduced into the circulation air passage 50a through the exhaust duct 72.
  • the warm air circulates between the circulation air passage 50a and the outer tub 20.
  • the drying device 50 performs a circulating drying operation by circulation of warm air and an exhaust drying operation of discharging a part of the circulating warm air to the outside.
  • An exhaust port 51 is provided in the upper panel 12, and the exhaust port is composed of a plurality of exhaust holes, and the heating air is discharged.
  • the water supply port 61 of the water supply device 60 exposed to the outside is connected to an external water supply hose (not shown) extending from the faucet.
  • the water supply device 60 includes a water supply valve and a detergent container, and by opening the water supply valve, tap water from the faucet is supplied into the outer tub 20 together with the detergent contained in the detergent container.
  • the water supply device 60 may include a bath water pump.
  • the washing operation is an operation in which only washing is performed, and the washing process, the intermediate dehydration process, the rinsing process, and the final dehydration process are sequentially performed.
  • the washing and drying operation is a continuous washing to drying operation, followed by a drying process after the final dewatering process.
  • the drying operation is an operation in which only drying is performed, and only the drying process is performed.
  • the pulsator 26 In the washing process and the rinsing process, the pulsator 26 is rotated to the right and to the left in a state where water is stored in the washing and dewatering tub 24. The laundry in the washing and dewatering tub 24 is washed or rinsed by the rotation of the pulsator 26. The specific movement of the laundry due to the rotation of the pulsator 26 will be described later in detail.
  • the washing and dewatering tub 24 and the pulsator 26 are integrally rotated at a high speed.
  • the laundry is dehydrated by the action of centrifugal force generated in the washing dewatering bucket 24.
  • the internal air circulation drying process is first performed, followed by the external air introduction drying process.
  • the circulation drying operation is performed by the drying device 50, and the warm air circulates between the circulation air path 50a and the outer tub 20.
  • the pulsator 26 rotates, and the laundry is dried by the circulating warm air while being stirred.
  • the temperature in the washing and dewatering tank 24 continues to rise and the moisture evaporates from the laundry and the warm air contains a large amount of moisture, it is switched to the outside air and introduced into the drying process.
  • the exhaust drying operation is performed by the drying device 50, and the outside air is introduced into the circulation air path 50a, and a part of the circulating warm air is discharged from the circulation air path 50a.
  • the moisture evaporated from the laundry is efficiently discharged from the inside of the outer tub 20 to the outside of the casing 10, and the dehumidification in the outer tub 20 is easily performed, thereby promoting the drying of the laundry.
  • Fig. 3 (a) is a perspective view of the pulsator 26 as viewed from above in the present embodiment
  • Fig. 3 (b) is a perspective view of the pulsator 26 as seen from below in the present embodiment.
  • 4(a) and 4(b) are a plan view and a front view, respectively, of the pulsator 26 of the present embodiment
  • Fig. 4(c) is a cross-sectional view taken along line AA' of Fig. 4(a) of the present embodiment.
  • the pulsator 2 is formed of a resin material such as polypropylene, and includes a base portion 100, a protrusion portion 110, and two blade portions 120.
  • the protrusion 110 and the two blade portions 120 may be formed separately from the base 100 and attached to the base 100 or may be integrally formed with the base 100.
  • the base 100 has a disk shape. On the surface of the base portion 100, a circular concave surface 102 is formed inside the flat outer peripheral surface 101.
  • the concave surface 102 is composed of an outer curved surface 102a and an inner flat surface 102b.
  • a cylindrical boss attaching portion 103 is formed at the center portion on the back surface of the base portion 100.
  • a metal mounting boss 130 is attached to the boss attaching portion 103.
  • a wing shaft (not shown) for rotating the pulsator 26 is attached to the mounting boss 130.
  • a plurality of back leaves 104 radially extending from the boss attaching portion 103 are provided on the back surface of the base portion 100.
  • a plurality of water leakage holes 105 penetrating the front and the back are formed in the concave surface 102.
  • water stored on the concave surface 102 is discharged from the water leakage hole 105.
  • the protruding portion 110 protrudes upward from the concave surface 102 at the central portion of the base portion 100.
  • the protruding portion 110 has a trapezoidal tapered shape in which both side portions are cut off to the extent that the blade portion 120 protrudes.
  • the top portion 111 of the protruding portion 110 is a circular flat surface, and has an insertion hole 112 at the center portion.
  • the mounting boss 130 and the wing shaft are fixed by a screw (not shown) that passes through the insertion hole 112.
  • the height H1 of the protrusion 110 is equal to or less than one-half of the height H2 of the two blade portions 120 (see (c) of FIG. 4 ).
  • the two blade portions 120 are ridged in a mountain shape from the concave surface 102 and opposed to each other via the protruding portion 110. Each of the blade portions 120 extends from the protrusion 110 to the outer periphery 100a of the base 100.
  • a concave space is formed by the concave surface 102. This concave space is divided into two by the two blade portions 120 and the protrusion portion 110 located therebetween, and forms two holding spaces S1 for holding the laundry accommodated in the washing and dewatering tub 24 (refer to (c) of FIG. 4).
  • a central concave space S2 recessed with respect to the blade portion 120 is formed between the two blade portions 120 (see (b) of FIG. 4).
  • the blade portion 120 includes a first ridge portion 121, a second ridge portion 122, a first inclined surface 123, a second inclined surface 124, and a ridge portion 125.
  • the first ridge portion 121 extends in a radial direction of the base portion 100 at a position higher than the top portion 111 of the protrusion portion 110.
  • the first ridge portion 121 is a flat surface extending horizontally from the center of the base portion 100 to the intermediate portion 100a to the outer peripheral edge 100a.
  • the second ridge portion 122 is continuous from the first ridge portion 121 and inclined so as to descend toward the protrusion portion 110 side.
  • the second ridge portion 122 is a flat surface that is substantially equal in width to the first ridge portion 121, and is connected to the protrusion portion 110.
  • the first inclined surface 123 and the second inclined surface 124 are inclined such that the concave surfaces 102 on both sides in the circumferential direction of the first ridge portion 121 and the second ridge portion 122 are respectively raised toward the two ridge portions 121 and 122.
  • the inclinations of the first inclined surface 123 and the second inclined surface 124 are different from each other. That is, the inclination of the first inclined surface 123 is relatively small, and the inclination of the second inclined surface 124 is relatively large.
  • the inclination of the first inclined surface 123 with respect to the horizontal direction is set to about 35 degrees
  • the inclination of the second inclined surface 124 with respect to the horizontal direction is set to about 50 degrees.
  • the inclined faces 123a, 124a which are located in the first inclined surface 123 and the second inclined surface 124, which are connected to the second ridge 122, which are shown by oblique lines in FIG. 4(a), are also along the second ridge 122. The way the direction rises is tilted.
  • the ridge portion 125 is provided to protrude from the second ridge portion 122 and extends along the second ridge portion 122.
  • the ridge portion 125 has an elongated substantially rectangular parallelepiped shape.
  • the two side faces 125a of the ridge portion 125 along the second ridge portion 122 rise substantially vertically, and the angle with respect to the horizontal direction is larger than the first inclined surface 123 and the second inclined surface 124.
  • the ridge portion 125 may be formed separately from the second ridge portion 122 and attached to the second ridge portion 122 or may be integrally formed with the second ridge portion 122.
  • FIG. 5 are views for explaining the movement of the laundry when the pulsator 26 of the present embodiment is rotated.
  • the laundry that is, the laundry is connected by the two blade portions 120 in the radial direction of the pulsator 26. It is separated from the protrusion 110 and held in the holding space S1 on both sides. In the fovea space S2, the laundry is not easily present.
  • the pulsator 26 is rotationally driven in this state.
  • the first inclined surface 123 of the two blade portions 120 advances in the circumferential direction and comes into contact with the laundry.
  • the laundry rises in a manner of being pushed by the first inclined surface 123 and sliding on the first inclined surface 123.
  • the laundry rising toward the first ridge 121 on the first inclined surface 123 is upward from the first ridge 121 by the rising momentum as indicated by the black arrow of (a) of FIG. The party was taken out.
  • the laundry rising toward the second ridge portion 122 on the first inclined surface 123 is as shown by the oblique arrow in (a) of FIG. 5, and is disposed on the second ridge.
  • the ridge portion 125 of the portion 122 collides, and moves toward the center side of the pulsator 26 in the fovea space S2 as the second ridge portion 122 is inclined downward.
  • the laundry rising on the second inclined surface 124 collides with the ridge portion 125, and is in the concave space S2.
  • the center side of the pulsator 26 moves. It should be noted that since the second inclined surface 124 is steeper than the first inclined surface 123, the laundry does not easily rise as compared with the first inclined surface 123. Therefore, when the pulsator 26 is rotated to the left, the vertical movement and the movement toward the center side of the laundry are likely to be smaller than when the pulsator 26 is rotated to the right.
  • the laundry is easily lifted up and down by the rotation of the two blade portions 120.
  • the laundry moves so as to be caught on the center side of the pulsator 26 by the rotation of the two blade portions 120, and is easily stirred in the horizontal plane.
  • the pulsator 26 does not stir the entire laundry in the horizontal plane as in the related art, but the structure in which the laundry moves in the horizontal plane while moving up and down, it is not easy to generate a strong kinking to the laundry, and Easy to produce entanglement.
  • the movement of the laundry changes when the pulsator 26 rotates to the right and when it rotates to the left.
  • the laundry moves more complicatedly in the washing and dewatering tub 24, and further improvement in cleaning performance can be expected.
  • the foveal space S2 can be enlarged. Thereby, the laundry which rises on the first inclined surface 123 or the second inclined surface 124 of the blade portion 120 and collides with the ridge portion 125 easily moves toward the center side of the pulsator 26, and the movement of the laundry in the horizontal plane is optimized. .
  • the laundry can be lifted upward by the rotation of the pulsator 26 during drying, so that the warm air from the drying device 50 can be blown well to the washing. Things.
  • the pulsator 26 is configured to achieve both cleaning performance and drying performance.
  • the pulsator 26A described below can be used.
  • Fig. 6 is a perspective view of the pulsator 26A as seen from above in the first modification.
  • Fig. 7 is an exploded perspective view of the pulsator 26A as seen from above in the first modification.
  • 8(a) and 8(b) are a front view and a left side view, respectively, of the pulsator 26A of Modification 1
  • (c) of Fig. 8 is a pulsator 26A taken along line BB' of Fig. 6 of Modification 1. Sectional view.
  • the pulsator 26A is formed of a resin material such as polypropylene, and includes a base portion 200, a protrusion portion 210, two blade portions 220, and a rotating body 230.
  • the protrusion 210 and the two blade portions 220 may be formed separately from the base 200 and attached to the base 200 or may be integrally formed with the base 200.
  • the structure of the base 200 is the same as that of the base 100 of the above embodiment. That is, the outer peripheral surface 201 and the concave surface 202 are formed on the surface of the base 200.
  • the concave surface 202 is composed of an outer curved surface 202a and an inner flat surface 202b. Further, on the back surface of the base portion 200, a boss attaching portion 203 to which a metal mounting boss 240 is attached and a plurality of back blades 204 are provided. Further, in the base portion 100, a plurality of water leakage holes 205 penetrating through the front surface are formed in almost the entire area of the concave surface 202.
  • the protruding portion 210 protrudes upward from the concave surface 202 at the central portion of the base portion 200.
  • the protruding portion 210 has a trapezoidal tapered shape in which both side portions are cut away from the extent that the blade portion 220 protrudes.
  • a rotating shaft portion 211 that protrudes upward is provided at the center portion, and an annular disk-shaped sliding plate 250 is attached around the rotating shaft portion 211.
  • the slide plate 250 is formed of a material having a small friction coefficient and excellent wear resistance such as stainless steel.
  • an insertion hole 212 is formed in the center portion of the top portion 210a of the protrusion 210.
  • the mounting boss 240 and the wing shaft are fixed by a screw (not shown) that passes through the insertion hole 212.
  • the height H3 of the protrusion 210 is equal to or less than one-half of the height H4 of the two blade portions 220 (see (c) of FIG. 8).
  • the two blade portions 220 are laterally raised from the concave surface 202 and opposed to each other via the protruding portion 210. Each blade portion 220 extends from the protrusion 210 to the outer periphery 200a of the base 200.
  • a concave space is formed by the concave surface 202, and the concave space is divided into two by the two blade portions 220 and the protruding portion 210, and two holding spaces S3 are formed on both sides thereof (refer to (c) of FIG. 8 ).
  • a concavity space S4 is formed between the two blade portions 220 above the protrusion portion 210 (see (a) of FIG. 8).
  • the blade portion 220 has the same configuration as the blade portion 120 of the above-described embodiment, and includes a first ridge portion 221, a second ridge portion 222, a first inclined surface 223, a second inclined surface 224, and a ridge portion 225.
  • the inclination of the first inclined surface 223 is relatively small, and the inclination of the second inclined surface 224 is relatively large.
  • the inclination of the first inclined surface 223 with respect to the horizontal direction is set to about 35 degrees
  • the inclination of the second inclined surface 224 with respect to the horizontal direction is set to about 50 degrees.
  • the inclined surfaces 223a and 224a of the first inclined surface 223 and the second inclined surface 224 which are connected to the second ridge portion 222 are also inclined so as to rise in the direction along the second ridge portion 222.
  • the two side faces 225a of the ridge portion 225 along the second ridge portion 222 rise substantially vertically, and the angle with respect to the horizontal direction is larger than the first inclined surface 223 and the second inclined surface 224.
  • the ridge portion 225 may be formed separately from the second ridge portion 222 and attached to the second ridge portion 222 or may be integrally formed with the second ridge portion 222.
  • the rotating body 230 is formed in an inverted bowl shape whose diameter becomes smaller as it goes upward.
  • An opening 231 through which the rotating shaft portion 211 is inserted is provided at the center of the rotating body 230.
  • a plurality of protrusions 232 having a trapezoidal upper surface are formed so as to be annularly arranged in the upper and lower sections.
  • the rotating body 230 is rotatably supported by the rotating shaft portion 211 by inserting the rotating shaft portion 211 into the opening portion 231. Thereby, the rotating body 230 is disposed in the central concave space S4 above the protruding portion 210, and is rotatable with respect to the protruding portion 210.
  • the rotating body 230 includes an end cover 233, and after the rotating body 230 is disposed above the protruding portion 210, the opening portion 231 is covered by the end cover 233.
  • the rotating body 230 rotates on the slide plate 250 and slides relative to the slide plate 250. Since the frictional resistance of the sliding plate 250 is small, the rotating body 230 smoothly rotates.
  • the height position P1 of the top portion of the rotating body 230 is lower than the uppermost height position P2 of the blade portion 220 (see (c) of FIG. 8).
  • FIG. 9 are views for explaining the movement of the laundry when the pulsator 26A of the first modification is rotated.
  • the laundry moves in the fovea space S2 so as to slide on the top portion 111 of the protrusion 110.
  • the laundry passes through the rotating body in the fovea space S4.
  • the rotation of 230 is moved in a manner of being transferred.
  • the laundry will come into contact with the protrusion 232 of the rotating body 230.
  • the laundry is moved in the foveal space S4 so as to be transferred by the rotation of the rotating body 230, as in the case of the right rotation. At this time, the laundry will come into contact with the protrusion 232 of the rotating body 230. It should be noted that since the second inclined surface 224 is steeper than the first inclined surface 223, the laundry does not easily rise as compared with the first inclined surface 223. Therefore, when the pulsator 26A is rotated to the left, the vertical movement of the laundry and the movement toward the center side are likely to be smaller than when the pulsator 26A is rotated.
  • the laundry moves in the foveal space S4 so as to be transferred by the rotation of the rotating body 230. Therefore, the laundry can smoothly move in the horizontal plane.
  • the rotating body 230 is formed in a shape whose diameter becomes smaller as it goes upward, a gap is easily formed between the two blade portions 220 and the rotating body 230, and the washing can be increased. The space in which objects move. Thereby, the laundry is easily moved to the center side of the pulsator 26A.
  • the scrubbing effect by the projection 232 can be expected.
  • the concave surface 102 is composed of the curved surface 102a and the flat surface 102b.
  • the concave surface 102 may be a surface that is more recessed than the outer peripheral portion of the base portion 100, and may be formed only of a curved surface or may be composed only of a flat surface.
  • the two blade portions 120 extend to the outer peripheral edge 100a of the base portion 100.
  • the two blade portions 120 may not extend to the outer peripheral edge 100a.
  • the inclinations of the first inclined surface 123 and the second inclined surface 124 are different, but they may be the same.
  • the protruding portion 110 is formed in a substantially trapezoidal tapered shape, the shape of the protruding portion 110 may be any shape.
  • the ridge portion 125 is formed in an elongated substantially rectangular parallelepiped shape, the ridge portion 125 is provided integrally as being protruded from the second ridge portion 122 and extending along the second ridge portion 122 as a whole. Yes, it can be other shapes. For example, the ridge portion 125 may not continue from one end to the other end, but there is a broken portion in the middle.
  • the rotating body 230 is formed in an inverted bowl shape.
  • the rotating body 230 may be formed in another shape.
  • the rotating body 230 may be formed in a hollow trapezoidal tapered shape or in a disk shape.
  • the present invention can also be applied to a fully automatic washing machine that does not carry the laundry drying function.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Abstract

一种洗衣机，其中，波轮(26)包括：圆盘状的基部(100)，表面具有凹面(102)；突起部(110)，在基部(100)的中央部从凹面(102)突出；以及两个叶片部(120)，从凹面(102)呈山状隆起，隔着突起部(110)对置。叶片部(120)包括：第一脊部(121)，在比突起部(110)的顶部(111)高的位置沿基部(100)的径向延伸；第二脊部(122)，以从第一脊部(121)连续并向突起部(110)侧下降的方式倾斜；第一倾斜面(123)和第二倾斜面(124)，以从第一脊部(121)和第二脊部(122)的周向的两侧的凹面(102)分别朝向这两个脊部(121、122)上升的方式倾斜；以及突条部(125)，以从第二脊部(122)突起的方式设置，沿第二脊部(122)延伸，使得洗衣机能够抑制缠绕的产生且能获得良好的清洗性能。

Description

洗衣机 技术领域
本发明涉及一种洗衣机。
背景技术
例如，专利文献1中记载了一种洗衣干衣机，其具备配置于洗涤兼脱水桶的底部的波轮，该波轮的表面由呈扇状从中心朝向外周部变高的近似山形的倾斜面和连接这些倾斜面之间的谷部构成。在专利文献1的洗衣干衣机中，当波轮旋转时，衣物在倾斜面上滑动并在顶点附近被甩起。由此，能为洗涤物赋予较大的上下移动。
当如此对洗涤物赋予上下移动时，在烘干时，衣物在洗涤兼脱水桶内变得容易舒展，能期待烘干性能的提高。
在上述洗衣干衣机中，洗涤时的衣物即洗涤物的移动也容易成为基于上下移动的单调的移动。因此，虽然洗涤物不容易扭结而不容易产生缠绕，但是洗涤物彼此之间难以产生摩擦等，因此，清洗性能容易下降。
另一方面，在像现有的洗衣机的波轮那样通过从中央部呈放射状延伸的多枚叶片的旋转而仅在水平面内强劲搅拌洗涤物的情况下，虽然洗涤物彼此之间容易产生摩擦等，但是洗涤物变得容易扭结而变得容易产生缠绕。由此，容易变得难以将洗涤后的洗涤物取出。此外，在洗衣干衣机的情况下，在洗涤后进行烘干时，洗涤物的移动会因缠绕而恶化，会产生烘干不均匀、褶皱，烘干性能容易降低。
现有技术文献
专利文献
专利文献1：日本特开2005-80946号公报
发明内容
发明所要解决的问题
因此，本发明的目的在于提供一种抑制缠绕的产生且能获得良好的清洗性能的洗衣机。
用于解决问题的方案
本发明的主要方案的洗衣机具备：洗涤桶，容纳洗涤物；波轮，配置于所述洗涤桶的底部；以及驱动部，驱动所述波轮。其中，所述波轮包括：圆盘状的基部，表面具有凹面；突起部，在所述基部的中央部从所述凹面突出；以及两个叶片部，从所述凹面呈山状隆起，并隔着所述突起部对置。而且，所述叶片部包括：第一脊部，在比所述突起部的顶部高的位置沿所述基部的径向延伸；第二脊部，以从所述第一脊部连续并向所述突起部侧下降的方式倾斜；第一倾斜面和第二倾斜面，以从所述第一脊部和所述第二脊部的周向的两侧的所述凹面分别朝向这两个脊部上升的方式倾斜；以及突条部，以从所述第二脊部突起的方式设置，沿所述第二脊部延伸。
根据上述结构，在波轮的外周侧，通过两个叶片部的旋转，洗涤物通过在第一倾斜面或第二倾斜面上上升而被甩起，变得容易进行上下移动。而且，在波轮的内周侧，通过两个叶片部的旋转，洗涤物在第一倾斜面或第二倾斜面上上升并与突条部碰撞从而向波轮的中央侧移动，容易在水平面内被搅拌。由此，在清洗、漂洗时，洗涤物会在洗涤桶内复杂地移动，因此，能期待清洗性能的提高。而且，由于波轮采用使洗涤物在上下移动的同时也在水平面内移动的结构，因此，不容易对洗涤物产生较强的扭结，不容易产生缠绕。
在本方案的洗衣机中，所述突起部的高度可以设为所述叶片部的高度的二分之一以下。
根据上述结构，能将形成于两个叶片部之间且形成于突起部的上方的空间扩宽。由此，在第一倾斜面或第二倾斜面上上升并与突条部碰撞的洗涤物容易向波轮的中央侧移动，洗涤物在水平面内的移动得到优化。
在本方案的洗衣机中，可以采用所述第一倾斜面和所述第二倾斜面彼此的倾斜度不同的结构。
根据上述结构，由于在波轮向右旋转时和向左旋转时洗涤物的移动会发生变化，因此，洗涤物会在洗涤桶内更复杂地移动，能期待清洗性能的进一步提高。
在本方案的洗衣机中，可以采用所述波轮还包括相对于所述突起部旋转自如地设置于所述突起部的上方的旋转体的结构。这种情况下，所述旋转体的顶部的高度位置设为比所述叶片部的最上部的高度位置低。
根据上述结构，洗涤物以通过旋转体的旋转而被挪送的方式向波轮的中央侧移动。因此，洗涤物能在水平面内顺畅移动。
在采用上述结构的情况下，还可以进一步采用所述旋转体具有直径随着朝向上方而变小的形状的结构。
采用这样的结构的话，容易在两个叶片部与旋转体之间产生间隙，能增大可供洗涤物移动的空间。由此，洗涤物容易向波轮的中央侧移动。
在采用上述结构的情况下，还可以进一步采用在所述旋转体的表面形成有多个突部的结构。
采用这样的结构的话，通过使洗涤物与旋转体的突部接触，能期待由突部带来的擦洗效果。
发明效果
根据本发明，能提供一种抑制缠绕的产生且获得良好的清洗性能的洗衣机。
本发明的效果以及意义通过以下所示的实施方式的说明将更为清楚。但是，以下的实施方式终究只是实施本发明时的一个示例，本发明不受以下的实施方式所记载的内容的任何限制。
附图说明
图1是实施方式的全自动洗衣干衣机的侧剖图。
图2是实施方式的全自动洗衣干衣机的上部的后视立体图。
图3的(a)是实施方式的从上方观察到的波轮的立体图，图3的(b)是 实施方式的从下方观察到的波轮的立体图。
图4的(a)和(b)分别是实施方式的波轮的俯视图和主视图，图4的(c)是实施方式的沿图4的(a)的A-A′线剖开的波轮的剖面图。
图5的(a)和(b)是用于说明实施方式的波轮旋转时洗涤物的移动的图。
图6是变更例1的从上方观察到的波轮的立体图。
图7是变更例1的从上方观察到的波轮的分解立体图。
图8的(a)和(b)分别是变更例1的波轮的主视图和左视图，图8的(c)是变更例1的沿图6的B-B′线剖开的波轮的剖面图。
图9的(a)和(b)是用于说明变更例1的波轮旋转时洗涤物的移动的图。
附图标记说明
1：全自动洗衣干衣机(洗衣机)；24：洗涤脱水桶(洗涤桶)；26：波轮；30：驱动单元(驱动部)；100：基部；102：凹面；110：突起部；120：叶片部；121：第一脊部；122：第二脊部；123：第一倾斜面；124：第二倾斜面；125：突条部；230：旋转体；232：突部。
具体实施方式
以下，参照附图，对作为本发明的洗衣机的一个实施方式的全自动洗衣干衣机1进行说明。
图1是本实施方式的全自动洗衣干衣机1的侧剖图。图2是本实施方式的全自动洗衣干衣机1的上部的后视立体图。
全自动洗衣干衣机1具备构成外观的机壳10。机壳10包括：方形筒状的机身部11，上下表面敞开；上面板12，覆盖机身部11的上表面；以及脚台13，支承机身部11。上面板12形成有用于投入洗涤物的外侧投入口14。外侧投入口14由开闭自如的上盖15覆盖。
在机壳10内，外桶20通过具有防振装置的四根吊棒21弹性地被悬吊支承。 外桶20包括上表面开口的大致圆筒状的外桶主体22a和通过覆盖外桶主体22a的上表面而构成外桶20的上表面的外桶盖22b。在外桶20的上表面即外桶盖22b，在与外侧投入口14对应的位置形成有用于投入洗涤物的内侧投入口22c。内侧投入口22c由外桶盖23可开闭地覆盖。
在外桶20内，配置有上表面敞开的大致圆筒状的洗涤脱水桶24。在洗涤脱水桶24的内周面，遍及整周地形成有许多脱水孔24a。在洗涤脱水桶24的上部设置有平衡环25。在洗涤脱水桶24的底部配置有波轮26。需要说明的是，洗涤脱水桶24相当于本发明的洗涤桶。
在外桶20的外底部配置有产生驱动洗涤脱水桶24以及波轮26的转矩的驱动单元30。驱动单元30包括驱动电机31和传递机构部32。传递机构部32具有离合器机构，通过该离合器机构的切换操作，在洗涤过程以及漂洗过程中将驱动电机31的转矩仅传递给波轮26而仅使波轮26旋转，在脱水过程中将驱动电机31的转矩传递给波轮26以及洗涤脱水桶24而使波轮26以及洗涤脱水桶24一体旋转。需要说明的是，驱动单元30相当于本发明的驱动部。
在外桶20的外底部形成有排水口部20a。在排水口部20a设置有排水阀40。排水阀40连接于排水软管41。当排水阀40打开时，蓄于洗涤脱水桶24以及外桶20的水通过排水软管41向机体外排出。
在机壳10内的后部，在外桶20的上方配置有烘干装置50和供水装置60。烘干装置50和供水装置60安装于配置在机身部11的上表面后部的固定板16，被上面板12覆盖。
烘干装置50将容纳在洗涤脱水桶24内的洗涤物烘干。烘干装置50包括加热器和配置有鼓风扇的循环风路50a，循环风路50a通过吸气管道71以及排气管道72与外桶20的内部连接。吸气管道71以及排气管道72是柔性管道，由橡胶等弹性材料形成，中间部分具有未图示的蛇纹部。通过加热器以及鼓风扇的工作而生成的暖风从循环风路50a排出，并通过吸气管道71被导入外桶20内。进而，从外桶20排出的暖风通过排气管道72被导入循环风路50a内。这样，暖风在循环风路50a与外桶20之间循环。
烘干装置50进行由暖风的循环实现的循环烘干动作和接下来将循环的暖风 的一部分向外部排出的排气烘干动作。在上面板12设置有排气口51，排气口由许多排气孔构成，供暖风排出。
供水装置60的露出至外部的供水口61与从水龙头延伸出的未图示的外部供水软管连接。供水装置60包括供水阀以及洗涤剂容器，通过打开供水阀，来自水龙头的自来水与容纳在洗涤剂容器内的洗涤剂一起被供给至外桶20内。供水装置60可以包括洗澡水泵。
在全自动洗衣干衣机1中，进行各种运转模式的洗涤运转、洗涤烘干运转或烘干运转。洗涤运转是仅进行洗涤的运转，按顺序执行洗涤过程、中间脱水过程、漂洗过程、以及最终脱水过程。洗涤烘干运转是连续进行洗涤到烘干的运转，在最终脱水过程之后接着执行烘干过程。烘干运转是仅进行烘干的运转，仅执行烘干过程。
在洗涤过程以及漂洗过程中，在洗涤脱水桶24内蓄有水的状态下，波轮26向右以及向左旋转。洗涤脱水桶24内的洗涤物通过波轮26的旋转而被清洗或者漂洗。关于因波轮26的旋转而产生的洗涤物的具体移动，将在后文进行详述。
在中间脱水过程以及最终脱水过程中，洗涤脱水桶24以及波轮26一体地高速旋转。洗涤物通过在洗涤脱水桶24产生的离心力的作用而被脱水。
在烘干过程中，首先进行内部空气循环烘干过程，接着进行外部空气导入烘干过程。在内部空气循环烘干过程中，通过烘干装置50来进行循环烘干动作，暖风在循环风路50a与外桶20之间循环。通过烘干风的循环，洗涤脱水桶24内的温度迅速上升。波轮26旋转，洗涤物在被搅拌的同时被循环的暖风烘干。当洗涤脱水桶24内的温度继续上升，水分从洗涤物蒸发而暖风中含有大量水分时，切换为外部空气导入烘干过程。在外部空气导入烘干过程中，通过烘干装置50来进行排气烘干动作，向循环风路50a导入外部空气的同时从循环风路50a排出一部分循环的暖风。从洗涤物蒸发的水分被有效地从外桶20内排出到机壳10外，容易进行外桶20内的除湿，因此，促进了洗涤物的烘干。
接着，参照图3的(a)至图4的(c)，对波轮26的结构进行详细说明。
图3的(a)是本实施方式的从上方观察到的波轮26的立体图，图3的(b)是本实施方式的从下方观察到的波轮26的立体图。图4的(a)和(b)分别是 本实施方式的波轮26的俯视图和主视图，图4的(c)是本实施方式的沿图4的(a)的A-A′线剖开的波轮26的剖面图。
波轮2由聚丙烯等树脂材料形成，包括基部100、突起部110、以及两个叶片部120。突起部110以及两个叶片部120既可以与基部100分开形成并安装于基部100，也可以与基部100一体形成。
基部100具有圆盘状。在基部100的表面，在平坦的外周面101的内侧形成有圆形的凹面102。凹面102由外侧的曲面102a和内侧的平坦面102b构成。在基部100的背面，在中央部形成有圆筒状的凸台装接部103。在凸台装接部103，装接有金属制的安装凸台130。在安装凸台130安装有用于使波轮26旋转的未图示的翼轴。此外，在基部100的背面设置有从凸台装接部103呈放射状延伸的多个背叶104。而且，在基部100，在凹面102形成有贯通表里的许多漏水孔105。在从洗涤脱水桶24即外桶20排水时，蓄于凹面102上的水从漏水孔105排出。
突起部110在基部100的中央部从凹面102向上方突出。突起部110具有两侧部分被削掉了叶片部120伸出的程度的梯形锥状。突起部110的顶部111为圆形的平坦面，在中央部具有插通孔112。通过穿过插通孔112的未图示的螺钉来固定安装凸台130和翼轴。突起部110的高度H1设为两个叶片部120的高度H2的二分之一以下(参照图4的(c))。
两个叶片部120从凹面102呈山状隆起，隔着突起部110对置。各个叶片部120从突起部110延伸至基部100的外周缘100a。在基部100，通过凹面102而形成有凹空间。该凹空间被两个叶片部120和位于它们之间的突起部110一分为二，形成保持容纳于洗涤脱水桶24的洗涤物的两个保持空间S1(参照图4的(c))。此外，在突起部110的上方，在两个叶片部120之间形成有相对于叶片部120凹陷的中央凹空间S2(参照图4的(b))。
叶片部120包括：第一脊部121、第二脊部122、第一倾斜面123、第二倾斜面124、以及突条部125。第一脊部121在比突起部110的顶部111高的位置向基部100的径向延伸。第一脊部121为平坦的面，从基部100的中心与外周缘100a的中间位置水平延伸至外周缘100a。第二脊部122从第一脊部121连续并以向突起部110侧下降的方式倾斜。第二脊部122为与第一脊部121宽度大 致相等的平坦面，与突起部110相连。
第一倾斜面123和第二倾斜面124以从第一脊部121和第二脊部122的周向的两侧的凹面102分别朝向这两个脊部121、122上升的方式倾斜。第一倾斜面123和第二倾斜面124的倾斜度互不相同。即，第一倾斜面123的倾斜度相对较小，第二倾斜面124的倾斜度相对较大。例如，第一倾斜面123相对于水平方向的倾斜度设为35度左右，第二倾斜面124相对于水平方向的倾斜度设为50度左右。在图4的(a)中用斜线所示的位于第一倾斜面123和第二倾斜面124中的与第二脊部122相连的斜面123a、124a以也向沿着第二脊部122的方向上升的方式倾斜。
突条部125以从第二脊部122突起的方式设置，沿第二脊部122延伸。突条部125具有细长的大致长方体形状。突条部125的沿着第二脊部122的两个侧面125a大致垂直地立起，相对于水平方向的角度比第一倾斜面123和第二倾斜面124大。突条部125既可以与第二脊部122分开形成并安装于第二脊部122，也可以与第二脊部122一体形成。
接着，对波轮26的动作进行说明。
图5的(a)和(b)是用于说明本实施方式的波轮26旋转时洗涤物的移动的图。
如图5的(a)和(b)所示，在清洗、漂洗时，在蓄有水的洗涤脱水桶24内，衣物即洗涤物被在波轮26的径向上相连的两个叶片部120和突起部110分开，并被保持在这两侧的保持空间S1中。中央凹空间S2中呈不易存在洗涤物的状态。波轮26在这种状态下被旋转驱动。
如图5(a)所示，当波轮26从上方观察向右旋转时，两个叶片部120的第一倾斜面123会沿周向前进并与洗涤物接触。洗涤物以被第一倾斜面123推动且在第一倾斜面123上滑动的方式上升。在波轮26的外周侧，在第一倾斜面123上朝向第一脊部121上升的洗涤物如图5的(a)的黑色箭头所示，借着上升的势头从第一脊部121向上方被甩出。另一方面，在波轮26的内周侧，在第一倾斜面123上朝向第二脊部122上升的洗涤物如图5的(a)的斜线箭头所示，与设置于第二脊部122的突条部125碰撞，随着第二脊部122向下倾而在中央凹 空间S2向波轮26的中央侧移动。
如图5的(b)所示，当波轮26从上方观察向左旋转时，两个叶片部120的第二倾斜面124会沿周向前进并与洗涤物接触。洗涤物以被第二倾斜面124推动并在第二倾斜面124上滑动的方式上升。与向右旋转时同样，在波轮26的外周侧，如图5的(b)的黑色箭头所示，在第二倾斜面124上上升的洗涤物从第一脊部121向上方被甩出。此外，在波轮26的内周侧，如图5的(b)的斜线箭头所示，在第二倾斜面124上上升的洗涤物通过与突条部125碰撞，在中央凹空间S2向波轮26的中央侧移动。需要说明的是，第二倾斜面124比第一倾斜面123陡峭，因此与第一倾斜面123相比洗涤物不容易上升。因此，在波轮26向左旋转时，与向右旋转时相比，，洗涤物的上下移动以及向中央侧的移动容易变小。
这样，在本实施方式中，在波轮26的外周侧，通过两个叶片部120的旋转，洗涤物变得容易被甩起而上下移动。另一方面，在波轮26的内周侧，通过两个叶片部120的旋转，洗涤物以被卷入波轮26的中央侧的方式移动，容易在水平面内被搅拌。由此，在清洗、漂洗时，洗涤物在洗涤脱水桶24内复杂地移动，因此容易产生洗涤物彼此之间的摩擦等，能期待清洗性能的提高。而且，由于波轮26不像以往那样在水平面内搅拌洗涤物整体，而是使洗涤物在上下移动的同时也在水平面内移动的结构，因此，不容易对洗涤物产生较强的扭结，不容易产生缠绕。
此外，在本实施方式中，通过使第一倾斜面123与第二倾斜面124之间的倾斜度不同，在波轮26向右旋转时和向左旋转时洗涤物的移动会变化，因此，洗涤物在洗涤脱水桶24内更复杂地移动，能期待清洗性能的进一步提高。
而且，在本实施方式中，由于突起部110的高度设为叶片部120的高度的二分之一以下，因此，能扩大中央凹空间S2。由此，在叶片部120的第一倾斜面123或第二倾斜面124上上升并与突条部125碰撞的洗涤物容易向波轮26的中央侧移动，洗涤物在水平面内的移动得到优化。
需要说明的是，在本实施方式中，在烘干时，能通过波轮26的旋转来将洗涤物向上方甩起，因此，能将来自烘干装置50的暖风很好地吹到洗涤物。由此，不仅能期待清洗性能的提高，还能期待烘干性能的提高。即，在本实施方式中， 波轮26采用谋求兼顾清洗性能和烘干性能的结构。
以上，对本发明的实施方式进行了说明，但本发明不受上述实施方式等的任何限制，此外，本发明的实施方式也可以进行上述以外的各种变更。
<变更例1>
能使用以下说明的波轮26A来代替上述实施方式的波轮26。
图6是变更例1的从上方观察到的波轮26A的立体图。图7是变更例1的从上方观察到的波轮26A的分解立体图。图8的(a)和(b)分别是变更例1的波轮26A的主视图和左视图，图8的(c)是变更例1的沿图6的B-B′线剖开的波轮26A的剖面图。
波轮26A由聚丙烯等树脂材料形成，包括基部200、突起部210、两个叶片部220、以及旋转体230。突起部210以及两个叶片部220可以与基部200分开形成并安装于基部200，也可以与基部200一体形成。
基部200的结构与上述实施方式的基部100的结构相同。即，在基部200的表面形成有外周面201以及凹面202。凹面202由外侧的曲面202a和内侧的平坦面202b构成。此外，在基部200的背面，设置有供金属制的安装凸台240装接的凸台装接部203以及多个背叶204。而且，在基部100，在凹面202的几乎整个区域形成有贯通表里的许多漏水孔205。
突起部210在基部200的中央部从凹面202向上方突出。突起部210具有两侧部分被削掉了叶片部220伸出的程度的梯形锥状。在突起部210的顶部210a，在中央部设置有向上方突出的旋转轴部211，在旋转轴部211的周围，安装有环状的具有圆盘形状的滑动板250。滑动板250由摩擦系数小且耐磨损性优的材料例如不锈钢形成。此外，在突起部210的顶部210a，在中央部形成有插通孔212。通过穿过插通孔212的未图示的螺钉来固定安装凸台240和翼轴。突起部210的高度H3设为两个叶片部220的高度H4的二分之一以下(参照图8的(c))。
两个叶片部220从凹面202呈山状隆起，隔着突起部210对置。各个叶片部220从突起部210延伸至基部200的外周缘200a。在基部200，通过凹面202形成有凹空间，该凹空间被两个叶片部220以及突起部210一分为二，在它们 的两侧形成有两个保持空间S3(参照图8的(c))。此外，在突起部210的上方，在两个叶片部220之间形成有中央凹空间S4(参照图8的(a))。
叶片部220的结构与上述实施方式的叶片部120的结构相同，包括第一脊部221、第二脊部222、第一倾斜面223、第二倾斜面224、以及突条部225。第一倾斜面223的倾斜度相对较小，第二倾斜面224的倾斜度相对较大。例如，第一倾斜面223相对于水平方向的倾斜度设为35度左右，第二倾斜面224相对于水平方向的倾斜度设为50度左右。此外，第一倾斜面223和第二倾斜面224的与第二脊部222相连的斜面223a、224a以也向沿着第二脊部222的方向上升的方式倾斜。而且，突条部225的沿着第二脊部222的两个侧面225a大致垂直地立起，相对于水平方向的角度比第一倾斜面223和第二倾斜面224大。突条部225既可以与第二脊部222分开形成并安装于第二脊部222，也可以与第二脊部222一体形成。
旋转体230形成为倒碗形状，其直径随着朝向上方而变小。在旋转体230的中央设置有供旋转轴部211插入的开口部231。此外，在旋转体230的表面，以遍及上下两段呈环状排列的方式形成有上表面为梯形的许多突部232。
旋转体230通过向开口部231插入旋转轴部211而被旋转轴部211可旋转地支承。由此，旋转体230配置于突起部210的上方即中央凹空间S4内，相对于突起部210可旋转。旋转体230包括端盖233，在旋转体230配置于突起部210的上方之后，开口部231被端盖233覆盖。旋转体230在滑动板250上旋转，相对于滑动板250滑动。由于滑动板250的摩擦阻力小，因此旋转体230会顺畅地旋转。在旋转体230配置于突起部210的上方的状态下，旋转体230的顶部的高度位置P1比叶片部220的最上部的高度位置P2低(参照图8的(c))。
接着，对波轮26A的动作进行说明。
图9的(a)和(b)是用于说明变更例1的波轮26A旋转时洗涤物的移动的图。
如图9的(a)和(b)所示，在清洗、漂洗时，在蓄有水的洗涤脱水桶24内，洗涤物被保持在两个叶片部220以及突起部210的两侧的保持空间S3。呈中央凹空间S4不易存在洗涤物的状态。波轮26A在这种状态下被旋转驱动。
如图9的(a)所示，当波轮26A从上方观察向右旋转时，在波轮26A的内周侧，如图9的(a)的黑色箭头所示，在第一倾斜面223上上升的洗涤物会从第一脊部221向上方被甩出。此外，在波轮26A的内周侧，如图9的(a)的斜线箭头所示，在第一倾斜面223上上升的洗涤物通过与突条部225的碰撞而在中央凹空间S4向波轮26A的中央侧移动。这时，虽然在上述实施方式中，在中央凹空间S2，洗涤物以在突起部110的顶部111滑动的方式移动，但是在本变更例中，洗涤物在中央凹空间S4会以通过旋转体230的旋转而被挪送的方式移动。这时，洗涤物会与旋转体230的突部232接触。
如图9的(b)所示，当波轮26A从上方观察向左旋转时，在波轮26A的外周侧，如图9的(b)的黑色箭头所示，在第二倾斜面224上上升的洗涤物会从第一脊部221向上方被甩出。此外，在波轮26A的内周侧，如图9的(b)的斜线箭头所示，在第二倾斜面224上上升的洗涤物通过与突条部225的碰撞而在中央凹空间S4向波轮26A的中央侧移动。与右旋转时相同，洗涤物在中央凹空间S4以通过旋转体230的旋转而被挪送的方式移动。这时，洗涤物会与旋转体230的突部232接触。需要说明的是，由于第二倾斜面224比第一倾斜面223陡峭，因此，与第一倾斜面223相比洗涤物不容易上升。因此，在波轮26A向左旋转时，与右旋转时相比，洗涤物的上下移动以及向中央侧的移动容易变小。
以上，通过本变更例的结构，也能期待与上述实施方式相同的作用效果。
此外，在本变更例中，洗涤物在中央凹空间S4以通过旋转体230的旋转而被挪送的方式移动。因此，洗涤物能在水平面内顺畅移动。
而且，在本变更例中，由于旋转体230形成为其直径随着朝向上方而变小的形状，因此，容易在两个叶片部220与旋转体230之间产生间隙，能增大可供洗涤物移动的空间。由此，洗涤物容易向波轮26A的中央侧移动。
而且，在本变更例中，通过使洗涤物与旋转体230的突部232接触，能期待由突部232带来的擦洗效果。
<其他变更例>
在上述实施方式中，凹面102由曲面102a和平坦面102b构成。但是，凹面102是比基部100的外周部更凹陷的面即可，既可以仅由曲面构成，也可以 仅由平坦面构成。
此外，在上述实施方式中，两个叶片部120延伸至基部100的外周缘100a。但是，两个叶片部120也可以不延伸至外周缘100a。其中，理想的是，两个叶片部120延伸至基部100即波轮26的半径的90％长度的位置的外侧。
而且，虽然在上述实施方式中，第一倾斜面123和第二倾斜面124的倾斜度不同，但是也可以相同。
而且，虽然在上述实施方式中，突起部110形成为大致梯形锥状，但是突起部110的形状可以是任何形状。
而且，虽然在上述实施方式中，突条部125形成为细长的大致长方体形状，但是突条部125只要整体上以从第二脊部122突起的方式设置并沿着第二脊部122延伸即可，也可以是其他形状。例如，突条部125可以不从一端连续到另一端，而在中途存在断开的部分。
而且，在上述变更例1中，旋转体230形成为倒碗形状。但是，旋转体230也可以形成为其他形状，例如，既可以形成为中空的梯形锥状，也可以形成为圆盘状。
而且，在上述实施方式中，示出了本发明应用于搭载有衣物烘干功能的全自动洗衣干衣机1的例子。但是，本发明也能应用于不搭载衣物烘干功能的全自动洗衣机。
除此之外，本发明的实施方式能在技术方案所示的技术思想的范围内适当地进行各种变更。

Claims (6)

  1. 一种洗衣机，其特征在于，具备：
    洗涤桶，容纳洗涤物；
    波轮，配置于所述洗涤桶的底部；以及
    驱动部，驱动所述波轮，
    所述波轮包括：
    圆盘状的基部，表面具有凹面；
    突起部，在所述基部的中央部从所述凹面突出；以及
    两个叶片部，从所述凹面呈山状隆起，并隔着所述突起部对置，
    所述叶片部包括：
    第一脊部，在比所述突起部的顶部高的位置沿所述基部的径向延伸；
    第二脊部，以从所述第一脊部连续并向所述突起部侧下降的方式倾斜；
    第一倾斜面和第二倾斜面，以从所述第一脊部和所述第二脊部的周向的两侧的所述凹面分别朝向这两个脊部上升的方式倾斜；以及
    突条部，以从所述第二脊部突起的方式设置，并沿所述第二脊部延伸。
  2. 根据权利要求1所述的洗衣机，其特征在于，
    所述突起部的高度设为所述叶片部的高度的二分之一以下。
  3. 根据权利要求1或2所述的洗衣机，其特征在于，
    所述第一倾斜面和所述第二倾斜面彼此的倾斜度不同。
  4. 根据权利要求1至3中任一项所述的洗衣机，其特征在于，
    所述波轮还包括：旋转体，以相对于所述突起部旋转自如的方式设置于所述突起部的上方，
    所述旋转体的顶部的高度位置设为比所述叶片部的最上部的高度位置低。
  5. 根据权利要求4所述的洗衣机，其特征在于，
    所述旋转体具有直径随着朝向上方而变小的形状。
  6. 根据权利要求4或5所述的洗衣机，其特征在于，
    在所述旋转体的表面形成有多个突部。
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CN205775348U (zh) * 2016-02-03 2016-12-07 无锡小天鹅股份有限公司 一种洗衣机波轮
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CN107653621A (zh) * 2017-10-31 2018-02-02 青岛海尔洗衣机有限公司 一种洗衣机波轮及其洗衣机
CN107653622A (zh) * 2017-10-31 2018-02-02 青岛海尔洗衣机有限公司 一种洗衣机波轮及其洗衣机

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