WO2019120117A1 - 洗衣机 - Google Patents

洗衣机 Download PDF

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Publication number
WO2019120117A1
WO2019120117A1 PCT/CN2018/120537 CN2018120537W WO2019120117A1 WO 2019120117 A1 WO2019120117 A1 WO 2019120117A1 CN 2018120537 W CN2018120537 W CN 2018120537W WO 2019120117 A1 WO2019120117 A1 WO 2019120117A1
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WO
WIPO (PCT)
Prior art keywords
blade portion
pulsator
washing
movable blade
movable
Prior art date
Application number
PCT/CN2018/120537
Other languages
English (en)
French (fr)
Inventor
永井孝之
山内智博
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
Priority to CN201880081440.0A priority Critical patent/CN111492102B/zh
Publication of WO2019120117A1 publication Critical patent/WO2019120117A1/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
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/04—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a vertical axis

Definitions

  • the present invention relates to a washing machine.
  • a so-called scroll type washing machine is provided with a pulsator freely rotatable at the bottom of the washing and dewatering tub.
  • a water flow is generated in the washing and dewatering tub by the pulsator rotation, and the laundry is stirred by the water flow. Further, the laundry is stirred or rubbed by the pulsator itself in contact with the laundry. In this way, washing is carried out in the washing and dewatering tank.
  • the pulsator repeats the rotation in the right direction and the rotation in the left direction.
  • the laundry In the lower portion of the washing and dewatering tub near the pulsator, the laundry is easily subjected to strong water flow and is easily in contact with the pulsator. Therefore, when a large amount of laundry is put in the washing and dewatering tub, the laundry on the lower side is easily washed, but the laundry on the upper side is not easily washed.
  • Patent Document 1 describes a washing machine in which a surface on one side of a blade of a pulsator facing one of the rotation directions is set as a cliff face and a face facing the other rotation direction is set to be inclined. The surface, thereby changing the intensity of the water flow generated by the pulsator when rotating in one of the rotational directions and in the other rotational direction.
  • Patent Document 1 Japanese Laid-Open Patent Publication No. 2015-146897
  • a washing machine includes: a washing tub that accommodates laundry; a pulsator disposed at a bottom of the washing tub; and a driving portion that drives the pulsator.
  • the pulsator includes: a base portion; a blade portion disposed at a disposition surface provided on a surface of the base portion, a protrusion height protruding from the arrangement surface is variable; and a variable mechanism portion capable of being according to the pulsator The direction of rotation changes the protruding height of the blade portion.
  • the blade portion can be configured to include a first blade portion and a second blade portion, the first blade portion and the second blade portion being capable of being at a first position higher than the first position and higher than the protruding height Activities between two locations.
  • a configuration may be adopted in which the first blade portion moves toward the first position and the second blade portion moves toward the second position according to a rotation direction of the pulsator, And switching between the first blade portion moving toward the second position and the second blade portion moving toward the first position.
  • a configuration may be adopted in which the first blade portion and the second blade portion move toward the first position, and the first blade portion and the first direction according to a rotation direction of the pulsator The second blade portion is switched between the modes in which the second position moves.
  • the blade portion may be held at the base portion so as to be movable between a first position and a second position higher than the first height from the first position.
  • the variable mechanism portion includes a rotating portion disposed on a back side of the base portion, rotatable in a first rotation direction and a second rotation direction opposite to the base portion, and a moving portion At a position corresponding to the blade portion of the rotating portion, the blade portion is moved from the first position to the second position as the rotating portion rotates in the first rotational direction. The blade portion is moved from the second position to the first position as the rotating portion rotates in the second rotational direction.
  • An inclined surface is provided in the moving portion, and a lifting portion is provided in the blade portion, the lifting portion is in contact with the inclined surface, and when the blade portion moves from the first position to the second position Climbing on the inclined surface and descending on the inclined surface when the blade portion moves from the second position to the first position.
  • the moving portion may further include a support surface that supports the blade portion that has moved to the second position toward the protruding direction of the blade portion.
  • an opening portion for the blade portion to enter and exit when the protruding height is changed can be formed on the arrangement surface.
  • a first unevenness group including a plurality of concavities and convexities continuous along the edge portion is provided at an edge portion of the opening portion, and the blade portion is provided with a plurality of concavities and convexities and the first concavo-convex group Engaged second concave and convex groups.
  • the blade portion may be formed to be hollow on the back side.
  • a hole portion for discharging the air remaining on the back side is provided in the blade portion.
  • Fig. 1 is a side cross-sectional view showing the fully automatic washing and drying machine of the embodiment.
  • Fig. 2 is a rear perspective view of the upper portion of the fully automatic washing and drying machine of the embodiment.
  • FIG. 3 are perspective views of the pulsator as viewed from above in the embodiment.
  • Fig. 4 is an exploded perspective view of the pulsator as seen from above in the embodiment.
  • Fig. 5 is an exploded perspective view of the pulsator as seen from below in the embodiment.
  • FIG. 6 is a perspective view of the movable blade portion viewed from the front upper side in the embodiment
  • (b) of FIG. 6 is a perspective view of the movable blade portion viewed from the rear side in the embodiment
  • FIG. 6 It is a perspective view of the movable blade part seen from the front lower side of the embodiment
  • (d) of FIG. 6 is a perspective view of the lifting rod of embodiment.
  • FIG. 7 is a view showing a periphery of the first movable vane portion of the pulsator in a state in which the first movable vane portion of the embodiment does not protrude from the disposition surface and the second movable vane portion protrudes from the disposition surface.
  • (b) of FIG. 7 is a first movable vane portion showing a pulsator in which the first movable vane portion of the embodiment protrudes from the disposition surface and the second movable vane portion does not protrude from the disposition surface.
  • a cross-sectional view of the perimeter is shown in a pulsator in which the first movable vane portion of the embodiment protrudes from the disposition surface and the second movable vane portion does not protrude from the disposition surface.
  • FIG. 8 are perspective views of the pulsator as seen from above in the first modification.
  • FIG. 9 is a perspective view of a rotating portion constituting the variable mechanism portion of Modification 1.
  • 1 automatic washing and drying machine (washing machine); 24: washing dewatering bucket (washing bucket); 26: pulsator; 30: driving unit (driver); 100: base; 100a: configuration surface; 132: fixed side bump Group (first unevenness group); 200: movable blade portion (blade portion); 200A: first movable blade portion (first blade portion); 200B: second movable blade portion (second blade portion); 212 : movable side concave-convex group (second unevenness group); 222: movable side concave-convex group (second unevenness group); 223: hole portion; 232: movable side concave-convex group (second unevenness group); 251: lifting portion 300: variable mechanism portion; 310: rotating portion; 317: moving cam (moving portion); 318: inclined surface; 319: supporting surface.
  • Fig. 1 is a side cross-sectional view showing the fully automatic washing and drying machine 1 of the present embodiment.
  • Fig. 2 is a rear perspective view of the upper portion of the fully automatic washing and drying machine 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.
  • An outer insertion port 14 for feeding the laundry is formed in the upper panel 12.
  • the outer insertion port 14 is covered by the upper cover 15 that is freely opened and closed.
  • the outer tub 20 is elastically suspended and supported by four booms 21 having anti-vibration means.
  • the outer tub 20 includes an approximately cylindrical outer tub main body 22a whose upper surface is open, and an outer tub cover 22b that constitutes an upper surface of the outer tub 20 by covering the 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.
  • An approximately 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 on the inner circumferential surface of the washing and dewatering tub 24 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, a transmission mechanism portion 32, a wing shaft 33, and a dewatering drum shaft 34.
  • the wing shaft 33 is coupled to the pulsator 26, and the dewatering drum shaft 34 is coupled to the washing and dewatering tub 24.
  • the transmission mechanism portion 32 has a clutch mechanism by which the torque of the drive motor 31 is transmitted only to the wing shaft 33 during the washing process and the rinsing process, and only the pulsator 26 is rotated, and will be rotated during the dehydration process.
  • the torque of the drive motor 31 is transmitted to the wing shaft 33 and the dewatering drum shaft 34 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 machine 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, and the circulation air passage 50a is connected to the inside of the outer tub 20 through the air inlet duct 71 and the exhaust duct 72.
  • the air inlet duct 71 and the air exhaust duct 72 are flexible ducts, and are formed of an elastic material such as rubber, and have a serpentine portion (not shown) at the intermediate portion.
  • the warm air generated by the operation of the heater and the blower fan is discharged from the circulation air passage 50a, and introduced into the outer tub 20 through the air inlet 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 based on a warm air cycle, and an exhaust drying operation in which a part of the circulating warm air is discharged to the outside.
  • An air vent 51 is provided in the upper panel 12, and the air vent is composed of a plurality of vent holes for discharging warm air.
  • 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 is rotated in the right direction and the left direction 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 action of a water flow or the like generated by the rotation of the pulsator 26.
  • 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 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 drying operation is performed by the drying device 50, 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. Since the moisture evaporated from the laundry is efficiently discharged from the inside of the tub 20 to the outside of the casing 10, the inside of the tub 20 becomes easily dehumidified, thereby promoting the drying of the laundry.
  • FIG. 3 are perspective views of the pulsator 26 as viewed from above in the present embodiment.
  • (a) of FIG. 3 shows a state in which the pulsator 26 is rotated in the left direction as viewed from above, and
  • (b) of FIG. 3 shows a mode in which the pulsator 26 is rotated in the right direction as viewed from above.
  • the pulsator 26 includes a base portion 100, two movable blade portions 200, and a variable mechanism portion 300.
  • Two fixed blade portions 130 are provided in the base portion 100, and the movable blade portion 200 is disposed so as to be able to change the protruding height from the arrangement surface 100a on the arrangement surface 100a which is the top surface of each of the fixed blade portions 130.
  • the variable mechanism portion 300 can change the protruding height of each of the movable blade portions 200 in accordance with the rotation direction of the pulsator 26. It should be noted that the movable blade portion 200 corresponds to the blade portion of the present invention.
  • the form of the pulsator 26 is switched so that one movable blade portion 200 protrudes from the arrangement surface 100a and the other is movable according to the rotation direction of the pulsator 26.
  • the blade portion 200 does not protrude from the arrangement surface 100a, and one movable blade portion 200 does not protrude from the arrangement surface 100a, and the other movable blade portion 200 protrudes from the arrangement surface 100a.
  • the projection height is a predetermined height H1, for example, a height of about 30 mm, and when the movable blade portion 200 does not protrude from the arrangement surface 100a, the projection height is substantially zero.
  • Fig. 4 is an exploded perspective view of the pulsator 26 as seen from above in the present embodiment.
  • Fig. 5 is an exploded perspective view of the pulsator 26 as seen from below in the present embodiment.
  • the base portion 100 is formed of a resin material such as polypropylene, and includes a main body portion 110 having a substantially disk shape, an attachment portion 120 to which the variable mechanism portion 300 is attached, and two fixed blade portions 130.
  • the attachment portion 120 and the fixed blade portion 130 are formed integrally with the main body portion 110.
  • a circular concave surface 112 is formed inside the flat outer peripheral surface 111.
  • a plurality of water discharge holes 113 penetrating the front surface are formed in the concave surface 112.
  • a plurality of back blades 114 radially extending from the center side to the outer peripheral side are provided at portions other than the attachment portion 120 and the two fixed blade portions 130.
  • a pump chamber for accommodating the back blade 114 is provided at the bottom of the washing and dewatering tub 24, and a circulating water passage extending downward along the inner wall of the washing and dewatering tub 24 is connected to the pump chamber.
  • a discharge port is provided at a tip end portion of the circulation water passage.
  • the attachment portion 120 is raised upward from the concave surface 112 at the central portion of the main body portion 110. Thereby, an approximately circular attachment recess 121 that is recessed upward is formed on the back side of the attachment portion 120.
  • a circular opening portion 122 is formed in a central portion of the top surface of the attachment portion 120, and an annular groove portion 123 is formed around the opening portion 122.
  • an annular sliding rib 124 is formed at a position on the back side of the groove portion 123.
  • a sliding wall portion 115 formed in an arc shape concentrically with the attachment recess 121 is provided on the back surface of the main body portion 110.
  • the two fixed blade portions 130 are provided on the concave surface 112 of the main body portion 110 so as to face each other across the attachment portion 120.
  • the orientations of the two fixed blade portions 130 are set to the same orientation.
  • Each of the fixed blade portions 130 has a substantially trapezoidal column shape and is formed to be hollow on the back side.
  • the first side surface 130a and the second side surface 130b on the circumferential side of the base portion 100 of each of the fixed blade portions 130 are inclined such that the first side surface 130a is larger in slope than the second side surface 130b.
  • each of the fixed blade portions 130 is formed into a substantially rectangular flat surface to constitute the arrangement surface 100a.
  • the height position of the arrangement surface 100a is the same as the height position of the outer peripheral surface 111 of the main body portion 110.
  • An opening portion 131 having an approximately rectangular shape occupying almost the entire arrangement surface 100a is formed on the arrangement surface 100a.
  • a plurality of ribs 132a arranged at predetermined intervals along the edge portion are provided with a fixed side unevenness group 132 including a plurality of concavities and convexities continuous along the edge portion.
  • the fixed side unevenness group 132 corresponds to the first unevenness group of the present invention.
  • a pair of bearing portions 133 having the shaft holes 133a are provided in the vicinity of the edge portion on the second side surface 130b side of the opening portion 131.
  • the shaft hole 133a does not penetrate the bearing portion 133, and the shaft hole 133a penetrates the bearing portion 133 with respect to the bearing portion 133 on the outer circumference side.
  • a barrier rib 116 extending from the center side toward the outer peripheral side is provided on the back surface of the main body portion 110 at a position slightly apart from the first side surface 130a of each of the fixed blade portions 130.
  • Fig. 6 (a) is a perspective view of the movable blade unit 200 as viewed from the front side in the front view
  • Fig. 6 (b) is a perspective view of the movable blade unit 200 as seen from the rear side in the present embodiment
  • Fig. 6 (c) is a perspective view of the movable vane portion 200 as viewed from the front lower side of the present embodiment
  • (d) of FIG. 6 is a perspective view of the elevating rod 250 of the present embodiment.
  • the two movable blade portions 200 are formed of a resin material such as polypropylene and have a substantially triangular prism shape that is hollow on the back side.
  • Each movable blade portion 200 includes two side faces 210 that are approximately triangular and a first inclined face 220 and a second inclined face 230 that are disposed between the two side faces 210, and the other face between the two side faces 210 is open.
  • the first inclined surface 220 is disposed to be larger than the slope of the second inclined surface 230.
  • a pair of shaft fitting portions 240 having the shaft holes 241 are provided at corner portions that are not in contact with the first inclined faces 220.
  • the shaft hole 241 penetrates the shaft fitting portion 240 and the side surface 210.
  • a plurality of ribs 211 extending in a direction crossing the direction are formed at predetermined intervals in a direction from the first inclined surface 220 toward the shaft hole 241, thereby providing a movable body including a plurality of irregularities Side relief set 212.
  • a stopper portion 213 is provided at a lower edge portion of each side surface 210 so as to protrude to the side surface.
  • a rib 214 having a shape corresponding to the bearing portion 133 of the fixed blade portion 130 is formed so as to surround the shaft hole 241.
  • the first inclined surface 220 is formed as a curved surface having the shaft hole 241 as a center of curvature.
  • a plurality of ribs 221 extending in the oblique direction are formed at predetermined intervals along a direction orthogonal to the oblique direction, so that the first inclined surface 220 is provided with movable side unevenness including a plurality of irregularities.
  • Group 222 Further, on the first inclined surface 220, a plurality of hole portions 223 penetrating the front and the back are formed in the vicinity of the top of the movable blade portion 200.
  • the lower end portion of the second inclined surface 230 is formed as a curved surface which is the center of curvature of the shaft hole 241, and the other portion is formed as a flat surface.
  • a plurality of ribs 231 extending in the oblique direction are formed at predetermined intervals in a direction orthogonal to the oblique direction, and a movable side unevenness group 232 including a plurality of irregularities is provided.
  • the movable side unevenness groups 212, 222, and 232 correspond to the second unevenness group of the present invention.
  • a lifting rod 250 is attached to a position substantially at a position directly below the top of the movable blade portion 200 so as to be parallel to the first inclined surface 220.
  • the lifting rod 250 is formed by bending a metal rod, for example, a stainless steel round rod, and includes a lifting portion 251 that extends linearly and an L-shaped insertion portion 252 that is provided on both sides of the lifting portion 251.
  • the friction coefficient of the lifting rod 250 is smaller than that of the movable blade portion 200.
  • a fitting portion 260 to which the lifting rod 250 is attached is provided on the back side of the movable blade portion 200.
  • the fitting portion 260 is composed of two insertion hole portions 261 into which the insertion portion 252 of the lifting rod 250 is inserted, and a support portion 262 that supports the lifting portion 251 between the two insertion hole portions 261.
  • the movable blade portion 200 is rotatable about the shaft 270 with respect to the base portion 100, and is movable between a non-protruding position that does not protrude from the arrangement surface 100a and a protruding position that protrudes from the arrangement surface 100a.
  • the movable side unevenness groups 212, 222, and 232 of the movable blade portion 200 mesh with the fixed side unevenness group 132 of the fixed blade portion 130.
  • the first inclined surface 220 is movable in the rotational direction when the pulsator 26 is rotated in the right direction when viewed from above.
  • the blade portion 200 is referred to as a first movable blade portion 200A
  • the movable blade portion 200 in which the first inclined surface 220 faces the rotation direction when the pulsator 2 is rotated in the left direction as viewed from above is referred to as a second movable blade portion 200B.
  • the fixed blade portion 130 when the fixed blade portion 130 is referred to as the same, the fixed blade portion 130 in which the first movable blade portion 200A is disposed is referred to as a first fixed blade portion 130A, and the second movable blade portion 200B is disposed.
  • the fixed blade portion 130 is referred to as a second fixed blade portion 130B.
  • the first movable blade portion 200A and the second movable blade portion 200B correspond to the first blade portion and the second blade portion of the present invention, respectively.
  • the variable mechanism unit 300 includes a rotating unit 310, a bracket 320, a cap 330, a lower washer 340, and an upper washer 350.
  • the rotating portion 310, the bracket 320, and the cap portion 330 are formed of a resin material such as polypropylene.
  • the rotating portion 310 has a hub portion 311 integrally formed with a center and two arm portions 312 extending in the opposite direction from the hub portion 311.
  • the hub portion 311 is an approximately cylindrical body whose top surface is closed, and its back side is circularly recessed to constitute a shaft fitting portion 313.
  • a metal fitting bushing 360 is attached to the shaft fitting portion 313.
  • the assembly shaft 360 is fitted with a wing shaft 33.
  • the upper end of the assembly boss 360 passes through the top surface of the hub portion 311 and protrudes slightly upward.
  • An annular rib 314 having an outer diameter substantially equal to the inner diameter of the opening 122 of the attachment portion 120 of the base portion 100 is formed on the top surface of the hub portion 311.
  • a plurality of screw holes 315 are formed inside the annular rib 314.
  • an arc-shaped sliding wall portion 316 is formed in a portion where the arm portion 312 is not formed, and a sliding plate 370 made of metal, for example, stainless steel, is attached to the surface of the sliding wall portion 316.
  • the friction coefficient of the slide plate 370 is smaller than that of the rotating portion 310.
  • moving cams 317 are provided at positions corresponding to the two movable blade portions 200, respectively.
  • the moving cam 317 is formed with an inclined surface 318 and a flat supporting surface 319 extending in the horizontal direction from the top of the inclined surface 318.
  • the respective inclined faces 318 of the moving cams 317 of the two arms 312 are oriented in the same direction. It should be noted that the moving cam 317 corresponds to the moving portion of the present invention.
  • the bracket 320 is formed in a substantially disk shape.
  • a concave portion 321 having a circular recess is formed in a central portion of the bracket 320.
  • the back side of the recess 321 protrudes downward.
  • An opening portion 322 into which the distal end portion of the mounting boss 360 is inserted is formed in a central portion of the bottom surface of the recessed portion 321, and a plurality of screw holes 323 are formed around the opening portion 322.
  • an annular sliding rib 324 is formed on the outer peripheral portion.
  • the cap portion 330 is formed in a substantially disk shape and has an outer diameter substantially equal to the inner diameter of the concave portion 321 of the bracket 320.
  • the lower washer 340 and the upper washer 350 are metal annular plates.
  • the lower washer 340 has a smaller coefficient of friction than the rotating portion 310, and the upper washer 350 has a smaller coefficient of friction than the bracket 320.
  • the rotating unit 310 is attached to the back side of the base 100 from below.
  • the boss portion 311 is inserted into the attachment recess 121, and a lower washer 340 is interposed between the top surface of the hub portion 311 and the upper surface of the attachment recess 121.
  • the sliding rib 124 of the upper surface of the attachment recess 121 abuts against the lower gasket 340.
  • the annular rib 314 on the top surface of the hub portion 311 is fitted into the opening portion 122 of the attachment portion 120.
  • the top surface of the hub portion 311 located inside the annular rib 314 faces upward through the opening portion 122.
  • the bracket 320 is attached to the top surface of the hub portion 311 on the inner side of the annular rib 314 from above.
  • the back surface of the concave portion 321 of the bracket 320 is in contact with the top surface of the hub portion 311, and the screw holes 323, 315 are aligned with each other.
  • a screw (not shown) is fixed to the two screw holes 323 and 315, and the bracket 320 is fixed to the hub portion 311.
  • An upper washer 350 is interposed between the bracket 320 and the groove portion 123 on the top surface of the attachment portion 120.
  • the sliding rib 324 on the back surface of the bracket 320 abuts against the upper washer 350.
  • the cap portion 330 is fitted to the recessed portion 321 of the bracket 320, and the recessed portion 321 is covered by the cap portion 330.
  • the rotating portion 310 is rotatable about the central axis of the base 100 with respect to the base portion 100 without contacting the two barrier ribs 116 provided on the back surface of the base portion 100.
  • the rotating portion 310 rotates relative to the base portion 100, on the back side of the base portion 100, the sliding plate 370 of the sliding wall portion 316 of the hub portion 311 slides on the inner surface of the sliding wall portion 115 of the base portion 100, and the recessed portion 121 is attached.
  • the sliding rib 124 of the upper surface slides on the surface of the lower washer 340.
  • the sliding rib 324 on the back surface of the bracket 320 slides on the surface of the upper washer 350. Thereby, the rotating portion 310 smoothly rotates with respect to the base portion 100.
  • FIG. 7 is a first view showing the pulsator 26 in a state in which the first movable blade portion 200A of the present embodiment does not protrude from the arrangement surface 100a and the second movable blade portion 200B protrudes from the arrangement surface 100a.
  • a cross-sectional view of the periphery of the moving blade portion 200A, and (b) of FIG. 7 is a view showing that the first movable blade portion 200A of the present embodiment protrudes from the arrangement surface 100a and the second movable blade portion 200B does not protrude from the arrangement surface 100a.
  • the rotating portion 310 rotates in the right direction with respect to the base portion 100, and the arm portion 312 of the rotating portion 310 moves in a direction toward the blocking rib 116 as indicated by a solid arrow.
  • the first movable blade portion 200A is pushed toward the moving cam 317 by the movement of the arm portion 312, the base portion 100 is not easily rotated due to the resistance or the like of the water in the washing dewatering tub 24, so as indicated by the dotted arrow,
  • the elevating portion 251 is climbed up on the inclined surface 318, and accordingly, the first movable vane portion 200A is rotated upward about the shaft 270, and the first movable vane portion 200A protrudes from the disposition surface 100a as indicated by a one-dot chain line.
  • the lifting portion 251 reaches the support surface 319 of the moving cam 317.
  • the first movable blade portion 200A reaches the protruding position, and is in a state of being most protruded with respect to the arrangement surface 100a.
  • the blocking portion 213 of the first movable blade portion 200A comes into contact with the back side of the arrangement surface 100a, and the first movable blade portion 200A does not rotate further upward.
  • the lifting portion 251 is supported by the support surface 319 upward, that is, in the protruding direction.
  • the base portion 100 is integrated with the rotating portion 310 and rotated in the right direction. That is, the pulsator 26 rotates in the right direction.
  • the elevating portion 251 is completely slid down the inclined surface 318, and the second movable vane portion 200B is not protruded from the disposition surface 100a.
  • the elevation portion 251 climbs on the inclined surface 318 to project the second movable blade portion 200B from the arrangement surface 100a. Further, on the second movable blade portion 200B side, the arm portion 312 abuts against the barrier rib 116, whereby the base portion 100 and the rotating portion 310 are integrally rotated to rotate in the left direction. That is, the pulsator 26 rotates in the left direction.
  • one of the movable blade portions 200 is retracted toward the arrangement surface 100a side, and the projection height is lowered, that is, 0 in the present embodiment, and the other movable blade portion 200 is disposed.
  • the surface 100a is protruded and the protruding height is increased, the laundry sinks on the side of one of the movable blade portions 200, and the laundry is lifted up on the other movable blade portion 200 side. In this state, when the laundry is stirred by the other movable blade portion 200, the lifted laundry easily falls onto the sinking laundry.
  • the laundry does not move regularly or monotonously in the left-right direction with the rotation of the pulsator 26 in the left-right direction, and it is easy to move irregularly or complicatedly. Thereby, the up-and-down exchange of the laundry becomes easy.
  • variable mechanism portion 300 includes a rotating portion 310 rotatable relative to the base portion 100 and a moving cam 317 having an inclined surface 318 provided on the rotating portion 310, and the movable blade portion 200
  • the lifting portion 251 ascends and descends on the inclined surface 318 as the rotating portion 310 rotates, thereby changing the protruding height of the movable blade portion 200 with respect to the arrangement surface 100a of the base portion 100, and therefore, the rotation according to the pulsator 26 can be easily realized.
  • the direction changes the configuration of the protruding height of the movable blade portion 200.
  • the moving cam 317 since the moving cam 317 has the support surface 319, the protruding movable blade portion 200 can be supported by the support surface 319 in the protruding direction. Thereby, even if the laundry or the like is pushed down, the movable blade portion 200 does not easily retreat to the side of the arrangement surface 100a.
  • the fixed side unevenness group 132 is provided at the peripheral edge portion of the opening portion 131 of the arrangement surface 100a in which the movable blade portion 200 is taken in and out, and the movable blade portion 200 is provided to be meshed with the fixed side unevenness group 132. Since the movable side unevenness groups 212, 222, and 232 are movable, it is not easy to pinch foreign matter such as coins or bite into the laundry in the gap between the movable blade portion 200 and the opening portion 131.
  • the air remaining on the back side of the movable vane portion 200 can be discharged from the hole portion 223, and thus It is possible to prevent the movable blade portion 200 from protruding when it is not desired to protrude due to the buoyancy generated by the air remaining on the back side of the movable blade portion 200.
  • the lifting portion 251 of the movable blade portion 200 that moves up and down on the inclined surface 318 of the moving cam 317 is formed of a member having a smaller friction coefficient than the movable blade portion 200, so that the lifting portion 251 is easily inclined on the inclined surface 318.
  • the movable blade portion 200 is easily rotated smoothly.
  • the movable blade portion 200 is formed in a mountain shape including the first inclined surface 220 and the second inclined surface 230, the laundry can be jumped up and moved up and down when the pulsator 26 rotates.
  • the pulsator 26A of the present modification can be used instead of the pulsator 26A of the above embodiment.
  • FIG. 8 is perspective views of the pulsator 26A viewed from above in the first modification.
  • (a) of FIG. 8 shows a state in which the pulsator 26A is rotated in the left direction as viewed from above, and (b) of FIG. 8 shows a mode in which the pulsator 26A is rotated in the right direction as viewed from above.
  • FIG. 9 is a perspective view of the rotating unit 310 constituting the variable mechanism unit 300 according to the first modification.
  • the orientation of the first movable blade portion 200A and the first fixed blade portion 130A is the first in the case of the above-described embodiment.
  • the orientation of the moving blade portion 200A and the first fixed blade portion 130A is opposite. Further, as shown in FIG.
  • the first movable blade portion 200A is in a state of protruding from the top surface of the first fixed blade portion 130A, that is, the arrangement surface 100a when the pulsator 26A is rotated in the left direction.
  • the pulsator 26A rotates in the right direction, it is in a state of not protruding from the arrangement surface 100a.
  • the first movable blade portion 200A and the second movable blade portion 200B as shown in (a) of FIG. 8 are alternately repeated from the arrangement surface.
  • the pulsator 26A when the pulsator 26A is rotated in the left direction and the right direction, the intensity of the water flow in the washing and dewatering tub 24 is greatly different. As a result, as the pulsator 26A rotates in the left-right direction, the laundry does not move in a regular or monotonous manner in the left-right direction, and it is easy to move irregularly or complicatedly, so that the laundry can be easily exchanged up and down.
  • the load applied to the pulsator 26A due to contact with water or laundry becomes small.
  • the pulsator 26A is easily rotated, and the pumping effect by the back blade 114 is increased, so that the amount of circulating water between the circulating water passage and the washing and dewatering tub 24 is increased. Therefore, when the pulsator 26A is rotated in the left direction and the right direction, the amount of circulating water as a whole can be increased, and the laundry in the washing and dewatering tub 24 can be sufficiently wetted by the circulating water.
  • the fixed blade portion 130 is provided on the concave surface 112 of the base portion 100, and the top surface of the fixed blade portion 130 is provided as the arrangement surface 100a on which the movable blade portion 200 is disposed.
  • the surface of the base portion 100 is not recessed and is provided as a flat surface, and the fixed blade portion 130 is not provided, and the partial region of the flat surface is provided as the arrangement surface on which the movable blade portion 200 is disposed. 100a.
  • the two movable blade portions 200 are provided in the pulsator 26 of the above-described embodiment, one or three or more movable blade portions 200 may be provided.
  • the pulsator 26 of the above-described embodiment only the blade portion including the fixed blade portion 130 and the movable blade portion 200 is provided.
  • the pulsator may be configured such that a part of the plurality of blade portions is provided as The blade portion including the fixed blade portion 130 and the movable blade portion 200 or the blade portion including only the movable blade portion 200 is provided.
  • the lifting rod 250 having a small friction coefficient is used.
  • a roller is provided as a lifting portion in the movable blade portion 200, and the roller rolls on the inclined surface 318.
  • a configuration may be adopted in which the elevating member is not formed using the separate member such as the elevating rod 250, and a part of the movable vane portion 200 is moved as the elevating portion on the inclined surface 318.
  • the present invention is also applicable to a fully automatic washing machine that does not carry the drying function of clothes.

Abstract

一种洗衣机，其能减轻清洗不均、布料损伤，能实现清洗性能的提高。全自动洗衣机具备：脱水桶，收容洗涤物的洗涤；波轮(26)，配置于洗涤脱水桶的底部；以及驱动单元，驱动波轮(26)。波轮(26)包括：基部(100)；可动叶片部(200)，配置于设置在基部(100)的表面的配置面(100a)，从该配置面(100a)突出的突出高度可变；可变机构部(300)，能根据波轮(26)的旋转方向改变可动叶片部(200)的突出高度。

Description

洗衣机 技术领域
本发明涉及一种洗衣机。
背景技术
以往，所谓的涡旋式的洗衣机在洗涤脱水桶的底部自由旋转地具备波轮。通过波轮旋转而在洗涤脱水桶内产生水流，洗涤物被该水流搅拌。此外，通过波轮自身与洗涤物接触，洗涤物被搅拌或摩擦。这样，在洗涤脱水桶内进行洗涤。洗涤时，波轮重复进行向右方向的旋转和向左方向的旋转。
在靠近波轮的洗涤脱水桶的下部，洗涤物容易受到强水流，并且容易与波轮接触。因此，在洗涤脱水桶内投入了较多洗涤物的情况下，下侧的洗涤物容易被清洗，但是上侧的洗涤物不容易被清洗。
在洗涤脱水桶内的洗涤物的活动比较规律或单调的情况下，上侧的洗涤物和下侧的洗涤物不容易互换。因此，这种情况下，容易对洗涤物产生清洗不均，或者清洗力较多地赋予停留在下侧的洗涤物，从而对洗涤物产生布料损伤。
因此，现有的洗衣机中，通过例如在波轮向右方向旋转时和向左方向旋转时改变波轮的工作时间或改变由波轮产生的水流的强度，使得洗涤物的活动变得比较不规律或者复杂，容易进行洗涤物的上下的互换。
需要说明的是，专利文献1中记载了一种洗衣机，其通过将波轮的叶片上的面向其中一个旋转方向的一侧的面设置为峭壁面并将面向另一个旋转方向的面设置为倾斜面，从而在向其中一个旋转方向旋转时和向另一个旋转方向旋转时，改变由波轮产生的水流的强度。
如上所述，洗衣机中，希望开发一种波轮，其比起现有的波轮，在反复向右方向旋转和向左方向旋转时使洗涤物在洗涤脱水桶内的活动变得更加不规则或者复杂，从而容易促进洗涤物的上下的互换，能减轻清洗不均、布料损伤。
现有技术文献
专利文献
专利文献1：日本特开2015-146897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洗衣机，其通过不同于现有的波轮的构成，能减轻清洗不均、布料损伤，实现清洗性能的提高。
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，收容洗涤物；波轮，配置于所述洗涤桶的底部；以及驱动部，驱动所述波轮。这里，所述波轮包括：基部；叶片部，配置于设置在所述基部的表面的配置面，从该配置面突出的突出高度可变；以及可变机构部，能根据所述波轮的旋转方向改变所述叶片部的所述突出高度。
例如，所述叶片部能采用包括第一叶片部和第二叶片部的构成，该第一叶片部和第二叶片部能在第一位置与比该第一位置高出所述突出高度的第二位置之间活动。这种情况下，能够采用如下构成：根据所述波轮的旋转方向，在所述第一叶片部向所述第一位置活动且所述第二叶片部向所述第二位置活动的形态、和所述第一叶片部向所述第二位置活动且所述第二叶片部向所述第一位置活动的形态之间切换。或者，能够采用如下构成：根据所述波轮的旋转方向，在所述第一叶片部和所述第二叶片部向所述第一位置活动的形态、和所述第一叶片部和所述第二叶片部向所述第二位置活动的形态之间切换。
根据上述的构成，由于随着波轮向左右方向旋转，洗涤物容易不规则或者复杂地活动，因而容易进行洗涤物的上下互换。由此，可以期待减轻清洗不均、布料损伤。
本方案的洗衣机中，能够采用如下构成：所述叶片部以能在第一位置与比该第一位置高出所述突出高度的第二位置之间活动的方式保持于所述基部。这 种情况下，所述可变机构部包括：旋转部，配置于所述基部的背面侧，能向相对于所述基部相反的第一旋转方向和第二旋转方向旋转；以及移动部，设置于所述旋转部的与所述叶片部对应的位置，随着所述旋转部向所述第一旋转方向的旋转而使所述叶片部从所述第一位置向所述第二位置移动，随着所述旋转部向所述第二旋转方向的旋转而使所述叶片部从所述第二位置向所述第一位置移动。在所述移动部设置有倾斜面，在所述叶片部设置有升降部，该升降部与所述倾斜面接触，并在所述叶片部从所述第一位置向所述第二位置移动时在所述倾斜面上爬升，在所述叶片部从所述第二位置向所述第一位置移动时在所述倾斜面上下降。
根据上述的构成，能容易地实现一种能根据波轮的旋转方向改变叶片部的突出高度的构成。
在采用上述的构成的情况下，可以进一步采用如下构成：所述移动部还包括支承面，该支承面将移动至所述第二位置后的所述叶片部向所述叶片部的突出方向支承。
采用这种构成的话，即使被洗涤物等向下推，突出的叶片部也不容易退向配置面侧。
本方案的洗衣机中，能在所述配置面形成当所述突出高度改变时供所述叶片部出入的开口部。这种情况下，在所述开口部的缘部设置有包括沿该缘部连续的多个凹凸的第一凹凸组，在所述叶片部设置有包括多个凹凸并与所述第一凹凸组啮合的第二凹凸组。
根据上述的构成，叶片部与开口部的间隙中不容易夹入硬币等异物或咬入洗涤物。
本方案的洗衣机中，所述叶片部可以形成为背侧中空。这种情况下，在所述叶片部设置有用于将留在所述背侧的空气排出的孔部。
根据上述的构成，在向洗涤桶供水时，当蓄水至叶片部的位置时，能将空气从叶片部的背侧排出，因而能防止由于残留在叶片部的背侧的空气产生的浮力而导致叶片部在不希望突出的时候突出。
发明效果
根据本发明，能提供一种洗衣机，其能减轻清洗不均、布料损伤，能实现清洗性能的提高。
通过以下所示的实施方式的说明，本发明的效果以及意义将变得更清楚。但是，以下的实施方式终究只是实施本发明时的一个例示，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干一体机的侧剖图。
图2是实施方式的全自动洗干一体机的上部的后视立体图。
图3的(a)和(b)是实施方式的从上方观察的波轮的立体图。
图4是实施方式的从上方观察的波轮的分解立体图。
图5是实施方式的从下方观察的波轮的分解立体图。
图6的(a)是实施方式的从前方上方观察的可动叶片部的立体图，图6的(b)是实施方式的从后方上方观察的可动叶片部的立体图，图6的(c)是实施方式的从前方下方观察的可动叶片部的立体图，图6的(d)是实施方式的升降棒的立体图。
图7的(a)是示出实施方式的第一可动叶片部不从配置面突出且第二可动叶片部从配置面突出的状态的波轮的、第一可动叶片部的周边的剖面图，图7的(b)是示出实施方式的第一可动叶片部从配置面突出且第二可动叶片部不从配置面突出状态的波轮的、第一可动叶片部的周边的剖面图。
图8的(a)和(b)是变更例1的从上方观察的波轮的立体图。
图9是变更例1的构成可变机构部的旋转部的立体图。
附图标记说明
1：全自动洗干一体机(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；100a：配置面；132：固定侧凹凸组(第 一凹凸组)；200：可动叶片部(叶片部)；200A：第一可动叶片部(第一叶片部)；200B：第二可动叶片部(第二叶片部)；212：可动侧凹凸组(第二凹凸组)；222：可动侧凹凸组(第二凹凸组)；223：孔部；232：可动侧凹凸组(第二凹凸组)；251：升降部；300：可变机构部；310：旋转部；317：移动凸轮(移动部)；318：倾斜面；319：支承面。
具体实施方式
以下，参照附图，对本发明的洗衣机的一实施方式的全自动洗干一体机1进行说明。
图1是本实施方式的全自动洗干一体机1的侧剖图。图2是本实施方式的全自动洗干一体机1的上部的后视立体图。
全自动洗干一体机1具备构成外观的箱体10。箱体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。在上面板12形成有用于投入洗涤物的外侧投入口14。外侧投入口14被自由开闭的上盖15覆盖。
在箱体10内，外桶20通过具有防振装置的四根吊棒21被弹性地悬吊支承。外桶20包括：近似圆筒状的外桶主体22a，上表面敞开；以及外桶罩22b，通过覆盖外桶主体22a的上表面而构成外桶20的上表面。在外桶20的上表面即外桶罩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被外桶盖23可开闭地覆盖。
在外桶20内配置有上表面敞开的近似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包括驱动马达31、传递机构部32、翼轴33、以及脱水桶轴34。翼轴33与波轮26连接，脱水桶轴34与洗涤脱水桶24连接。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 过程中将驱动马达31的转矩仅传递给翼轴33而仅使波轮26旋转，并在脱水过程中将驱动马达31的转矩传递给翼轴33以及脱水桶轴34而使波轮26以及洗涤脱水桶24一体地旋转。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。当打开排水阀40时，蓄于洗涤脱水桶24以及外桶20的水通过排水软管41被排出到机外。
在箱体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装配于配置在机身部11的上表面后部的固定板16，被上面板12覆盖。
烘干装置50将收容在洗涤脱水桶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通过进风管道71以及排风管道72而与外桶20的内部连接。进风管道71以及排风管道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，并通过进风管道71导入外桶20内。进而，从外桶20排出的暖风通过排风管道72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进行基于暖风的循环的循环烘干动作、和在此之后接着将循环的暖风的一部分向外部排出的排风烘干动作。在上面板12设置有排风口51，排风口由许多排气孔构成，排出暖风。
供水装置60的露出至外部的供水口61与从水龙头延伸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收容于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。
在全自动洗干一体机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向右方向以及左方向旋转。洗涤脱水桶24内的洗涤物通过波轮26的旋转所产生的水流等的作用而被清洗或者漂洗。
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。
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。内部空气循环烘干过程中，通过烘干装置50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进行旋转，洗涤物一边被搅拌一边被循环的暖风烘干。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。外部空气导入烘干过程中，通过烘干装置50进行排风烘干动作，向循环风路50a导入外部空气，并且从循环风路50a排出一部分循环的暖风。由于从洗涤物蒸发的水分有效地从外桶20内排出到箱体10外，外桶20内变得容易除湿，因此促进了洗涤物的烘干。
接着，对波轮26的构成进行详细说明。
图3的(a)和(b)是本实施方式的从上方观察的波轮26的立体图。图3的(a)表示从上方观察波轮26向左方向旋转时的形态，图3的(b)表示从上方观察波轮26向右方向旋转时的形态。
波轮26具备：基部100、两个可动叶片部200、以及可变机构部300。在基部100设置有两个固定叶片部130，在作为各固定叶片部130的顶面的配置面100a，以能改变从配置面100a突出的突出高度的方式分别配置有可动叶片部200。可变机构部300能根据波轮26的旋转方向改变各可动叶片部200的突出高度。需要说明的是，可动叶片部200相当于本发明的叶片部。
本实施方式中，如图3的(a)和(b)所示，根据波轮26的旋转方向，波轮26的形态切换为一个可动叶片部200从配置面100a突出且另一个可动叶片部200不从配置面100a突出的形态、和一个可动叶片部200不从配置面100a突出且另一个可动叶片部200从配置面100a突出的形态。当可动叶片部200从配置面100a突出时，突出高度为规定高度H1，例如30mm左右的高度，当可 动叶片部200不从配置面100a突出时，突出高度大致为0。
图4为本实施方式的从上方观察的波轮26的分解立体图。图5为本实施方式的从下方观察的波轮26的分解立体图。
基部100由聚丙烯等树脂材料形成，包括：具有近似圆盘状的主体部110、装接有可变机构部300的装接部120、以及两个固定叶片部130。装接部120和固定叶片部130与主体部110形成为一体。
在主体部110的表面，在平坦的外周面111的内侧形成有圆形的凹面112。在凹面112形成有贯通表里的许多放水孔113。在从洗涤脱水桶24即外桶20排水时，蓄于凹面112的水从放水孔113排出。
在主体部110的背面，在除了装接部120和两个固定叶片部130以外的部位，设置有从中央侧向外周侧放射状延伸的多个背叶片114。虽然图1中未图示，但在洗涤脱水桶24的底部设置有收容背叶片114的泵室，沿着洗涤脱水桶24的内壁面上下延伸的循环水路与泵室相连。在循环水路的顶端部设置有排出口。通过背叶片114的旋转，泵室内的水被送至循环水路，并从排出口被朝向洗涤脱水桶24的内侧放出。由此，对位于洗涤脱水桶24内的上侧的洗涤物泼循环水。需要说明的是，有时会在排出口装接线屑过滤器。这种情况下，循环水中所含的线屑被线屑过滤器捕集。
装接部120在主体部110的中央部从凹面112向上方隆起。由此，在装接部120的背侧形成有向上方凹陷的近似圆形的装接凹部121。在装接部120的顶面的中央部形成有圆形的开口部122，在开口部122的周围形成有圆环状的槽部123。在装接凹部121，在槽部123的背侧的位置形成有环状的滑动肋124。此外，在装接凹部121的外侧，在主体部110的背面设置有与装接凹部121同心的形成为圆弧状的滑动壁部115。
两个固定叶片部130以隔着装接部120对置的方式设置于主体部110的凹面112。在基部100上，两个固定叶片部130的朝向设定为同一朝向。各固定叶片部130具有近似梯形柱状并形成为背侧中空。各固定叶片部130的基部100的周向侧的第一侧面130a和第二侧面130b以第一侧面130a比第二侧面130b坡度更大的方式倾斜。
各固定叶片部130的顶面形成为近似长方形的平坦面而构成配置面100a。配置面100a的高度位置与主体部110的外周面111的高度位置相同。在配置面100a形成有占据几乎整个配置面100a的近似长方形的开口部131。在开口部131的四个缘部，通过沿缘部以规定间隔排列的多个肋132a，设有包括沿缘部连续的多个凹凸的固定侧凹凸组132。固定侧凹凸组132相当于本发明的第一凹凸组。
在各固定叶片部130的背侧，在开口部131的第二侧面130b侧的缘部附近，设置有具有轴孔133a的一对轴承部133。对于中央侧的轴承部133，轴孔133a不贯通轴承部133，对于外周侧的轴承部133，轴孔133a贯通轴承部133。此外，在与各固定叶片部130的第一侧面130a有点距离的位置处的主体部110的背面，设置有从中央侧向外周侧延伸的阻挡肋116。
图6的(a)为本实施方式的从前方上方观察的可动叶片部200的立体图，图6的(b)为本实施方式的从后方上方观察的可动叶片部200的立体图，图6的(c)为本实施方式的从前方下方观察的可动叶片部200的立体图，图6的(d)为本实施方式的升降棒250的立体图。
两个可动叶片部200由聚丙烯等树脂材料形成为背侧中空的近似三棱柱状。各可动叶片部200包括近似三角形的两个侧面210和设置于两个侧面210之间的第一倾斜面220以及第二倾斜面230，两个侧面210之间的另一个面敞开。第一倾斜面220设置为比第二倾斜面230坡度大。在可动叶片部200的两个侧面210的背侧，在不与第一倾斜面220接触的角部，设置有具有轴孔241的一对轴装配部240。轴孔241贯通轴装配部240和侧面210。
在两个侧面210，通过沿着从第一倾斜面220朝向轴孔241的方向按规定间隔形成有向与该方向交叉的方向延伸的多个肋211，从而设置有包括多个凹凸的可动侧凹凸组212。此外，在各侧面210的下缘部，以向侧面突出的方式设置有阻挡部213。进而，在各侧面210，以包围轴孔241的方式形成有与固定叶片部130的轴承部133对应形状的肋214。
第一倾斜面220形成为以轴孔241为曲率中心的曲面。在第一倾斜面220，通过沿着与倾斜方向正交的方向按规定间隔形成有向倾斜方向延伸的多个肋221，从而在第一倾斜面220设置有包括多个凹凸的可动侧凹凸组222。此外，在第一倾斜面220，在可动叶片部200的顶部的附近形成有贯通表里的多个孔部 223。
第二倾斜面230的下端部分形成为作为轴孔241的曲率中心的曲面，其他部分形成为平坦面。在第二倾斜面230的下端部分，通过沿着与倾斜方向正交的方向按规定间隔形成有向倾斜方向延伸的多个肋231，从而设置有包括多个凹凸的可动侧凹凸组232。需要说明的是，可动侧凹凸组212、222、232相当于本发明的第二凹凸组。
在可动叶片部200的背侧，在可动叶片部200的顶部的大致正下方位置，以与第一倾斜面220平行的方式装配有升降棒250。升降棒250通过弯曲加工金属制、例如不锈钢制的圆棒而形成，包括直线状延伸的升降部251和设置于升降部251的两侧的L字状的插入部252。升降棒250的摩擦系数比可动叶片部200小。在可动叶片部200的背侧设置有供升降棒250装配的装配部260。装配部260由供升降棒250的插入部252插入的两个插入孔部261、和在这两个插入孔部261之间支承升降部251的支承部262构成。
返回图4和图5，在两个可动叶片部200装配到基部100时，可动叶片部200的一对轴装配部240的轴孔241与固定叶片部130的一对轴承部133的轴孔133a对齐，金属制的、例如不锈钢制的轴270从外周侧穿过这些轴孔241、133a。这时，通过使轴承部133的顶端部从下方嵌入可动叶片部200的各侧面210的肋214的内侧，能容易地使轴孔241、133a彼此对齐，容易地进行轴270的装配。在轴270穿过之后，向外周侧的轴承部133的轴孔133a装配固定螺钉280，由此完成轴270的防脱。可动叶片部200能相对于基部100以轴270为中心转动，能在不从配置面100a突出的非突出位置、和从配置面100a突出的突出位置之间移动。在可动叶片部200的转动范围内，可动叶片部200的可动侧凹凸组212、222、232与固定叶片部130的固定侧凹凸组132啮合。
需要说明的是，以下，在将装配于基部100的两个可动叶片部200区分称呼的情况下，将从上方观察波轮26向右方向旋转时第一倾斜面220面向旋转方向的可动叶片部200称为第一可动叶片部200A，将从上方观察波轮2向左方向旋转时第一倾斜面220面向旋转方向的可动叶片部200称为第二可动叶片部200B。同样地，在将固定叶片部130区分称呼的情况下，将配置有第一可动叶片部200A的固定叶片部130称为第一固定叶片部130A，将配置有第二可动叶 片部200B的固定叶片部130称为第二固定叶片部130B。需要说明的是，第一可动叶片部200A和第二可动叶片部200B分别相当于本发明的第一叶片部和第二叶片部。
可变机构部300具备：旋转部310、支架320、帽部330、下垫圈340、以及上垫圈350。旋转部310、支架320以及帽部330由聚丙烯等树脂材料形成。
旋转部310具有一体形成有中央的轮毂部311和从轮毂部311向相反方向延伸的两个臂部312的构成。轮毂部311为顶面闭锁的近似圆筒体，其背侧圆形凹陷，构成轴套装接部313。在轴套装接部313，装接有金属制的装配轴套360。在装配轴套360装配有翼轴33。装配轴套360的上端贯通轮毂部311的顶面，稍微向上方突出。在轮毂部311的顶面形成有具有大致与基部100的装接部120的开口部122的内径相等的外径的环状肋314。此外，在轮毂部311的顶面，在环状肋314的内侧形成有多个螺钉孔315。在轮毂部311的下部，在不形成臂部312的部分形成有圆弧状的滑动壁部316，在该滑动壁部316的表面装配有金属制的、例如不锈钢制的滑动板370。滑动板370的摩擦系数比旋转部310小。
在两个臂部312，分别在与两个可动叶片部200对应的位置设置有移动凸轮317。在移动凸轮317形成有倾斜面318和从倾斜面318的顶部沿水平方向延伸的平坦的支承面319。两个臂部312的移动凸轮317各自的倾斜面318朝向相同方向。需要说明的是，移动凸轮317相当于本发明的移动部。
支架320形成为近似圆盘状。在支架320的中央部形成有圆形凹陷的凹部321。凹部321的背侧向下方突出。在凹部321的底面的中央部形成有供装配轴套360的顶端部插入的开口部322，在开口部322的周围形成有多个螺钉孔323。此外，在支架320的背面，在外周部形成有环状的滑动肋324。
帽部330形成为近似圆盘状，具有大致与支架320的凹部321的内径相等的外径。下垫圈340以及上垫圈350为金属制的环状板。下垫圈340的摩擦系数比旋转部310小，上垫圈350的摩擦系数比支架320小。
在将可变机构部300装配于基部100时，首先，旋转部310从下方装接于基部100的背面侧。轮毂部311插入装接凹部121，在轮毂部311的顶面与装接凹部121的上表面之间夹着下垫圈340。装接凹部121的上表面的滑动肋124与 下垫圈340抵接。此外，轮毂部311的顶面的环状肋314嵌入装接部120的开口部122。轮毂部311的位于环状肋314的内侧的顶面穿过开口部122朝向上方。接着，将支架320从上方装配于轮毂部311的位于环状肋314的内侧的顶面。此时，支架320的凹部321的背面与轮毂部311的顶面接触，螺钉孔323、315彼此对齐。将未图示的螺钉固定于两个螺钉孔323、315，支架320固定于轮毂部311。在支架320与装接部120的顶面的槽部123之间夹着上垫圈350。支架320的背面的滑动肋324与上垫圈350抵接。最后，将帽部330装配于支架320的凹部321，凹部321被帽部330覆盖。
旋转部310能相对于基部100在不接触设置于基部100的背面的两个阻挡肋116的范围内以基部100的中心轴为中心进行旋转。在旋转部310相对于基部100进行旋转时，在基部100的背侧，轮毂部311的滑动壁部316的滑动板370在基部100的滑动壁部115的内表面滑动，并且装接凹部121的上表面的滑动肋124在下垫圈340的表面滑动。此外，在基部100的表面侧，支架320的背面的滑动肋324在上垫圈350的表面滑动。由此，旋转部310相对于基部100顺利地旋转。
接着，对于通过可变机构部30改变可动叶片部200相对于固定叶片部130的顶面即配置面100a的突出高度的动作进行说明。这里，对能改变第一可动叶片部200A的突出高度的动作进行说明，而第二可动叶片部200B的可变动作与第一可动叶片部200A的可变动作一样。
图7的(a)是示出本实施方式的第一可动叶片部200A不从配置面100a突出且第二可动叶片部200B从配置面100a突出的状态的波轮26的、第一可动叶片部200A的周边的剖面图，图7的(b)是示出本实施方式的第一可动叶片部200A从配置面100a突出且第二可动叶片部200B不从配置面100a突出的状态的波轮26的、第一可动叶片部200A的周边的剖面图。
如图7的(a)所示，当第一可动叶片部200A处于不从配置面100a突出的非突出位置时，第一可动叶片部200A中，升降棒250的升降部251在移动凸轮317的倾斜面318的下方的位置与移动凸轮317接触。波轮26中，翼轴33与可变机构部300的旋转部310连接而不与基部100连接。因此，当驱动马达31从该状态进行正转时，驱动马达31的转矩经由翼轴33传递给旋转部310，从上方 观察，旋转部310向右方向旋转。旋转部310相对于基部100向右方向旋转，如实线箭头所示，旋转部310的臂部312向朝向阻挡肋116的方向移动。虽然第一可动叶片部200A通过臂部312的移动而被推向移动凸轮317，但基部100因被施加洗涤脱水桶24内的水的阻力等而不容易旋转，因此如虚线箭头所示，升降部251在倾斜面318上爬升，随之，第一可动叶片部200A以轴270为中心向上方转动，如单点划线所示，第一可动叶片部200A从配置面100a突出。
如图7的(b)所示，当臂部312与阻挡肋116抵接时，升降部251到达移动凸轮317的支承面319。由此，第一可动叶片部200A到达突出位置，呈相对于配置面100a最为突出的状态。当成为该状态时，第一可动叶片部200A的阻挡部213与配置面100a的背侧接触，第一可动叶片部200A不会进一步向上方转动。此外，升降部251由支承面319向上方即突出方向支承。由此，即使被向下推，也能防止第一可动叶片部200A退至配置面100a侧。在臂部312与阻挡肋116抵接之后，基部100与旋转部310成为一体而向右方向旋转。即，波轮26向右方向旋转。在第二可动叶片部200B侧，处于升降部251完全滑下倾斜面318而使第二可动叶片部200B不从配置面100a突出的状态。
接着，如图7的(b)所示，在第一可动叶片部200A处于突出位置的状态下，当驱动马达31反转时，从上方观察，旋转部310向左方向旋转。旋转部310相对于基部100向左方向旋转，如实线箭头所示，臂部312向远离阻挡肋116的方向移动。如虚线箭头所示，升降部251在倾斜面318上下降，随之，第一可动叶片部200A向下方转动，如单点划线所示，第一可动叶片部200A退向配置面100a侧。如图7的(a)所示，当升降部251完全滑下倾斜面318时，处于第一可动叶片部200A不从配置面100a突出的状态。此时，第一可动叶片部200A的第二倾斜面230与配置面100a大致同面。
在第二可动叶片部200B侧，升降部251在倾斜面318上爬升而使第二可动叶片部200B从配置面100a突出。此外，在第二可动叶片部200B侧，臂部312与阻挡肋116抵接，由此，基部100与旋转部310成为一体而向左方向旋转。即，波轮26向左方向旋转。
那么，当波轮26向左方向和右方向交替旋转时，交替重复图3的(a)那样的第一可动叶片部200A不从配置面100a突出且第二可动叶片部200B从配置 面100a突出的形态、和图3的(b)那样的第一可动叶片部200A从配置面100a突出且第二可动叶片部200B不从配置面100a突出的形态。通过切换波轮26的旋转方向，使得一方的可动叶片部200退向配置面100a侧而使突出高度变低，即，本实施方式中变为0，当另一个可动叶片部200从配置面100a突出而突出高度变高时，在一方的可动叶片部200侧，洗涤物会沉下去，在另一方的可动叶片部200侧，洗涤物会被顶起。在这种状态下，当洗涤物被另一方的可动叶片部200搅拌时，被顶起的洗涤物容易落到沉下去的洗涤物上。通过产生这样的活动，在洗涤脱水桶24内，洗涤物不随着波轮26的向左右方向的旋转而向左右方向规则或者单调地活动，容易不规则或者复杂地活动。由此，洗涤物的上下互换变得容易进行。
因此，根据本实施方式，可以期待减轻清洗不均、布料损伤。
此外，根据本实施方式，能采用如下构成：可变机构部300包括可相对于基部100旋转的旋转部310和具有设置于旋转部310的倾斜面318的移动凸轮317，可动叶片部200的升降部251随着旋转部310的旋转而在倾斜面318上升降，从而改变可动叶片部200相对于基部100的配置面100a的突出高度，因此，能容易地实现能根据波轮26的旋转方向改变可动叶片部200的突出高度的构成。
进而，根据本实施方式，移动凸轮317具有支承面319，因而能通过支承面319向突出方向支承突出的可动叶片部200。由此，即使被洗涤物等向下推，可动叶片部200也不容易退向配置面100a侧。
进而，根据本实施方式，在可动叶片部200出入的配置面100a的开口部131的周缘部设置有固定侧凹凸组132，并在可动叶片部200设置有与固定侧凹凸组132啮合的可动侧凹凸组212、222、232，因而可动叶片部200与开口部131的间隙中不容易夹入硬币等异物或者咬入洗涤物。
进而，根据本实施方式，在向洗涤脱水桶24供水时，当蓄水至可动叶片部200的位置时，能将留在可动叶片部200的背侧的空气从孔部223排出，因而能防止由于残留在可动叶片部200的背侧的空气产生的浮力而导致可动叶片部200在不希望突出的时候突出。
进而，根据本实施方式，在移动凸轮317的倾斜面318上升降的可动叶片部200的升降部251由摩擦系数比可动叶片部200小的构件形成，因而升降部251容易在倾斜面318上顺利地升降，可动叶片部200容易顺利地转动。
进而，根据本实施方式，可动叶片部200是由第一倾斜面220和第二倾斜面230构成的山形，因而能使洗涤物在波轮26旋转时跳起来进行上下活动。
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>
可以使用本变更例的波轮26A来代替上述实施方式的波轮26A。
图8的(a)和(b)为变更例1的从上方观察波轮26A的立体图。图8的(a)表示从上方观察波轮26A向左方向旋转时的形态，图8的(b)表示从上方观察波轮26A向右方向旋转时的形态。图9为变更例1的构成可变机构部300的旋转部310的立体图。
本变更例的波轮26A中，如图8的(a)和(b)所示，第一可动叶片部200A以及第一固定叶片部130A的朝向与上述实施方式的情况下的第一可动叶片部200A以及第一固定叶片部130A的朝向相反。此外，如图9所示，在构成可变机构部300的旋转部310中，与第一可动叶片部200A对应的臂部312的朝向与上述实施方式的情况下的与第一可动叶片部200A对应的臂部312的朝向相反，由此，与第一可动叶片部200A对应的移动凸轮317的朝向和上述实施方式的情况下的与第一可动叶片部200A对应的移动凸轮317的朝向相反。由此，本变更例中，与上述实施方式不同，第一可动叶片部200A在波轮26A向左方向旋转时处于从第一固定叶片部130A的顶面即配置面100a突出的状态，在波轮26A向右方向旋转时处于不从配置面100a突出的状态。
因此，本变更例中，当波轮26A向左方向和右方向交替旋转时，交替重复图8的(a)那样的第一可动叶片部200A和第二可动叶片部200B双方从配置面100a突出的形态、和图8的(b)那样的第一可动叶片部200A和第二可动叶片部200B双方不从配置面100a突出的形态。
在两个可动叶片部200从配置面100a突出的情况下，洗涤脱水桶24内的 水被两个固定叶片部130以及可动叶片部200搅拌。另一方面，在两个可动叶片部200不从配置面100a突出的情况下，洗涤脱水桶24内的水只被两个固定叶片部130搅拌。因此，在两个可动叶片部200不从配置面100a突出的情况下，与两个可动叶片部200从配置面100a突出的情况相比，洗涤脱水桶24内产生的水流极其微弱。因此，在使波轮26A向左方向和右方向旋转时，在洗涤脱水桶24内，水流的强度会产生极大的差异。由此，随着波轮26A的向左右方向旋转，洗涤物不向左右方向规则或者单调地活动，容易不规则或者复杂地活动，因而容易进行洗涤物的上下互换。
因此，采用本变更例，也能与上述本实施方式一样期待减轻清洗不均、布料损伤。
此外，本变更例中，在两个可动叶片部200不从配置面100a突出的情况下，由于与水、洗涤物的接触而施加给波轮26A的负荷变小。由此，波轮26A变得容易旋转，由背叶片114带来的泵送效果变大，所以循环水路与洗涤脱水桶24之间的循环水量变多。因此，在波轮26A向左方向和右方向旋转时，能使整体的循环水量增多，能通过循环水充分地浸湿洗涤脱水桶24内的洗涤物。
<其他的变更例>
上述实施方式的波轮26中，在基部100的凹面112设置有固定叶片部130，该固定叶片部130的顶面被设置为配置有可动叶片部200的配置面100a。但是，也能够采用如下构成：不将基部100的表面凹陷而将其设置为平坦面，不设置固定叶片部130，并将该平坦面的部分区域设置为配置有可动叶片部200的配置面100a。
此外，虽然在上述实施方式的波轮26中设置了两个可动叶片部200，但是也可以设置一个或者三个以上的可动叶片部200。
进而，虽然在上述实施方式的波轮26中只设置了包括固定叶片部130和可动叶片部200的叶片部，但是波轮也可以是如下构成：多个叶片部中的一部分叶片部设置为包括固定叶片部130和可动叶片部200的叶片部，或者设置为只包括可动叶片部200的叶片部。
进而，上述实施方式的波轮26中，为了使可动叶片部200的升降部251在 移动凸轮317的倾斜面318上顺利地移动，使用了摩擦系数小的升降棒250。但是，也能采用如下构成：在可动叶片部200设置滚轮作为升降部，滚轮在倾斜面318上滚动。此外，也可以采用如下构成：不使用升降棒250那样的分体构件构成升降部，而使可动叶片部200的一部分作为升降部在倾斜面318上移动。
进而，上述实施方式中，示出了将本发明适用于搭载有衣物的烘干功能的全自动洗干一体机1的例子。但是，本发明也适用于不搭载衣物的烘干功能的全自动洗衣机。
除此之外，本发明的实施方式可以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，收容洗涤物；
    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：
    基部；
    叶片部，配置于设置在所述基部的表面的配置面，从该配置面突出的突出高度可变；以及
    可变机构部，能根据所述波轮的旋转方向改变所述叶片部的所述突出高度。
  2. 根据权利要求1所述的洗衣机，其特征在于，
    所述叶片部以能在第一位置与比该第一位置高出所述突出高度的第二位置之间活动的方式保持于所述基部，
    所述可变机构部包括：
    旋转部，配置于所述基部的背面侧，能向相对于所述基部相反的第一旋转方向和第二旋转方向旋转；以及
    移动部，设置于所述旋转部的与所述叶片部对应的位置，随着所述旋转部向所述第一旋转方向的旋转而使所述叶片部从所述第一位置向所述第二位置移动，随着所述旋转部向所述第二旋转方向的旋转而使所述叶片部从所述第二位置向所述第一位置移动，
    在所述移动部设置有倾斜面，
    在所述叶片部设置有升降部，该升降部与所述倾斜面接触，并在所述叶片部从所述第一位置向所述第二位置移动时在所述倾斜面上爬升，在所述叶片部从所述第二位置向所述第一位置移动时在所述倾斜面上下降。
  3. 根据权利要求2所述的洗衣机，其特征在于，
    所述移动部还包括支承面，该支承面将移动至所述第二位置后的所述叶片部向所述叶片部的突出方向支承。
  4. 根据权利要求1至3的任一项所述的洗衣机，其特征在于，
    在所述配置面形成有当所述突出高度改变时供所述叶片部出入的开口部，
    在所述开口部的缘部设置有包括沿该缘部连续的多个凹凸的第一凹凸组，
    在所述叶片部设置有包括多个凹凸并与所述第一凹凸组啮合的第二凹凸组。
  5. 根据权利要求1至4的任一项所述的洗衣机，其特征在于，
    所述叶片部以背侧中空的方式形成，
    在所述叶片部设置有用于将留在所述背侧的空气排出的孔部。
  6. 根据权利要求1至5的任一项所述的洗衣机，其特征在于，
    所述叶片部包括能在第一位置与比该第一位置高出所述突出高度的第二位置之间活动的第一叶片部以及第二叶片部，
    根据所述波轮的旋转方向，在所述第一叶片部向所述第一位置活动且所述第二叶片部向所述第二位置活动的形态、和所述第一叶片部向所述第二位置活动且所述第二叶片部向所述第一位置活动的形态之间切换，或者，在所述第一叶片部以及所述第二叶片部向所述第一位置活动的形态、和所述第一叶片部以及所述第二叶片部向所述第二位置活动的形态之间切换。
PCT/CN2018/120537 2017-12-19 2018-12-12 洗衣机 WO2019120117A1 (zh)

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WO2020063574A1 (zh) * 2018-09-26 2020-04-02 青岛海尔洗衣机有限公司 洗衣机
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CN113136697A (zh) * 2020-01-20 2021-07-20 青岛海尔洗衣机有限公司 一种洗衣机的洗涤方法及具有该洗涤方法的洗衣机

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WO2020063573A1 (zh) * 2018-09-26 2020-04-02 青岛海尔洗衣机有限公司 洗衣机
WO2020063574A1 (zh) * 2018-09-26 2020-04-02 青岛海尔洗衣机有限公司 洗衣机
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US11866865B2 (en) * 2019-06-11 2024-01-09 Midea Group Co., Ltd. Impeller for laundry washing machine
CN113136697A (zh) * 2020-01-20 2021-07-20 青岛海尔洗衣机有限公司 一种洗衣机的洗涤方法及具有该洗涤方法的洗衣机

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