WO2005026426A1 - Machine a laver et a secher - Google Patents

Machine a laver et a secher Download PDF

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Publication number
WO2005026426A1
WO2005026426A1 PCT/JP2004/013218 JP2004013218W WO2005026426A1 WO 2005026426 A1 WO2005026426 A1 WO 2005026426A1 JP 2004013218 W JP2004013218 W JP 2004013218W WO 2005026426 A1 WO2005026426 A1 WO 2005026426A1
Authority
WO
WIPO (PCT)
Prior art keywords
washing
laundry
rotating body
inclined surface
pulsator
Prior art date
Application number
PCT/JP2004/013218
Other languages
English (en)
Japanese (ja)
Inventor
Toshifumi Koike
Shiro Ohbayashi
Toshiyasu Kamano
Yuzuru Miyano
Isao Hiyama
Tetsushi Yoshida
Original Assignee
Hitachi Home & Life Solutions, Inc.
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 Hitachi Home & Life Solutions, Inc. filed Critical Hitachi Home & Life Solutions, Inc.
Priority to CN200480018449.5A priority Critical patent/CN1813091B/zh
Publication of WO2005026426A1 publication Critical patent/WO2005026426A1/fr

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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
    • D06F17/10—Impellers

Definitions

  • the present invention relates to a washing machine or a washing / drying machine having a pulsator for applying mechanical force to laundry.
  • Patent Document 1 JP-A-2002-360966 (pages 7 to 9).
  • Patent Document 2 Japanese Patent Publication No. 35-8440 (page 1, FIG. 7).
  • Patent Document 3 Specification and drawings of Japanese Utility Model Application No. 55-15919 (Japanese Utility Model Application Publication No. 56-116972) (page 1, FIG. 1 and FIG. 2).
  • the height of the blades is formed to be the same as the central portion force to the vicinity of the outer periphery.
  • the thickness of the blades (dimensions in the rotation direction or circumferential direction) is small, and the pulsator has a shape protruding at a steep angle.
  • Such a blade shape exerts a large force on the laundry in the rotation direction, and is likely to cause cloth entanglement.
  • any of the above pulsators is used in a washing machine having no drying function, and has little consideration for realizing a dry finish with little wrinkling.
  • An object of the present invention is to provide a washing machine capable of performing washing with reduced cloth entanglement while effectively applying mechanical force to laundry, and a washing / drying machine capable of reducing cloth entanglement in a drying process. Is to do.
  • the rotating body provided at the bottom of the washing tub has an inclined surface that imparts vertical movement to the laundry by its rotational movement.
  • the diameter of the rotating body shall be 90% or more of the inner diameter of the washing tub, and the inclined surface will apply a centrifugal force to move the laundry to the outer peripheral side of the rotating body when the rotating body rotates.
  • the side may be configured to give upward movement while sliding the laundry on the slope.
  • the inclined surface slides the laundry downward on the inclined surface.
  • the rotating body has an inclined surface toward the inside of the washing tub, and the inclined surface has a top portion whose vertical position is higher in the circumferential direction and a valley portion whose height is lower on the outer peripheral side of the rotating body. It is formed so that the height gradually increases from the center of rotation of the rotating body toward the top, and the top and the valley have the highest force at the top with respect to the height difference between the top and the valley. It is formed so that the length in the circumferential direction up to is longer. It is preferable to form one to three apexes in the circumferential direction on the outer peripheral side of the rotating body, and it is preferable to provide two apexes.
  • the inclined surface may be formed as a flat surface.
  • the force for transporting the laundry in the rotating direction is small, and the laundry is easily subjected to centrifugal force by the rotation of the rotating body from the center side of the washing tub to the peripheral wall (side wall) side.
  • the laundry moved to the peripheral wall is moved up and down by the undulation on the outer peripheral side of the rotating body, and mechanical force is applied.
  • the laundry that has gathered on the side of the surrounding wall is broken by the vertical movement and can be replaced.
  • the collapse of the laundry during drying works particularly effectively to reduce tangling of the cloth.
  • the pulsator is simply rotated and driven around the rotation axis, and is provided with a mechanical force on the laundry by giving the laundry a vertical movement. To increase the cleaning power and reduce cloth entanglement, resulting in uneven washing and wrinkles Can be reduced.
  • An inclined surface that forms a vertical undulation is formed along a circumferential direction of a norseater of a washing machine or a washing and drying machine.
  • the inclined surface may be a flat surface or a curved surface.
  • the pulsator has a center axis of rotation located at the center of the bottom of the washing tub, and has a large diameter so as to cover the inside of the bottom of the washing tub.
  • covering the inside of the bottom of the washing tub does not necessarily mean that 100% of the inside of the bottom is covered.
  • the outer diameter of the norseta may be substantially equal to the inner diameter of the washing tub, or a gap may be provided between the outer peripheral portion of the pulsator and the peripheral wall of the washing tub.
  • the outer diameter of the pulsator was set to 90% or more of the inner diameter of the washing tub.
  • the pulsator has a peak on the outer peripheral side where the peak of the undulation increases, and the height of the undulation also gradually increases the rotation center force of the pulsator toward the top of the peak.
  • the undulation is formed to have one to three peaks in the circumferential direction in order to secure the height of the undulation and make the slope of the inclined surface gentle. In order to increase the height of the undulations and form the slope more smoothly, it is better to use a small number of peaks. desirable.
  • the force for transporting the laundry in the rotating direction is small, and the laundry is easily moved to the central side of the washing tub by the rotation of the pulsator to the peripheral wall (side wall) side.
  • the laundry moved to the peripheral wall is moved up and down by the undulation on the outer peripheral side of the pulsator, and mechanical force is applied.
  • the laundry gathering on the side of the peripheral wall is broken down by the vertical movement and can be replaced.
  • the collapse of the laundry during drying works particularly effectively to reduce the cloth entanglement.
  • washing and drying machine will be described as an example. Since the washing / drying machine of the present embodiment performs the spin-drying step, the washing tub in which the laundry is put is described as a washing-and- spinning tub.
  • FIG. 1 is a schematic diagram showing a vertical section of a washing / drying machine according to an embodiment of the present invention.
  • Reference numeral 1 denotes a rectangular cylindrical outer frame forming an outer shell.
  • the outer frame 1 is made of a steel plate.
  • Reference numeral 2 denotes a washing and dewatering tub, which has a small hole 2a for water passage and ventilation on its peripheral wall (side wall), and A fluid balancer 3 is provided at the edge, and a pulsator 4 is rotatably installed inside the bottom as a rotating body that applies mechanical force to the laundry.
  • the pulsator 4 has small holes 4a for water flow and ventilation.
  • Reference numeral 5 denotes an outer tub that contains the washing and dewatering tub 2 and stores washing water and rinsing water.
  • a driving device 6 is attached to the outside of the bottom by a steel plate mounting base 7, and four corners at the upper end of the outer frame 1 are provided.
  • the outer tank 5 is suspended from the center of the outer frame 1 by suspending the outer tank 5 evenly from all sides by four vibration isolating support devices 8 locked to the outer frame 1.
  • the pulsator 4 has a large diameter (the outer diameter is 90% or more of the inner diameter of the washing and dewatering tub) covering most of the bottom of the washing and dewatering tub 2, and its rotation center axis is It is arranged so as to overlap the rotation center axis of the water tank 2.
  • the shape of the pulsator 4 will be described later in detail.
  • the driving device 6 includes a driving motor, an electric operation clutch mechanism, and a planetary gear reduction mechanism, rotates the pulsator 4 with the washing and dehydrating tub 2 stationary (stirring mode), and And the pulsator 4 are rotated in opposite directions (washing mode), and the washing and dewatering tub 2 and the pulsator 4 are integrally rotated in the same direction (dehydration / drying mode).
  • the top cover 9 having the outer garment inlet 9a is fitted into the opening edge so as to cover the upper opening of the outer frame 1, and is attached to the outer frame 1 together with the front panel 10 and the back panel 11 by mounting screws. .
  • the outer garment inlet 9a formed in the top cover 9 is openably and closably covered by an outer lid 31 attached to the top cover 9 by a hinge 31a so as to open in two (folded in a mountain).
  • An inner garment inlet 28a formed in the outer tub upper cover 28 attached to the outer tub upper cover 28 is configured to be openably and closably covered by an inner lid 32 attached to the outer tub upper cover 28 by a hinge 32a.
  • a front panel box 12 which is a front storage section formed between the top cover 9 and the front panel 10, includes a power switch 13, an operation panel 14 provided with an input switch and a display element, and an outer tank 5 It incorporates a water level sensor 15 that generates a water level signal according to the water level inside, and a control unit 16. These constitute a control device.
  • the box 17 contains a washing water supply means.
  • the washing water supply means is constituted by a main water supply solenoid valve 20 having an inlet side connected to a faucet connection port 18 and an outlet side connected to a water inlet port 19. Further, although not shown, a water supply means constituted by a bath water pump having the water inlet side connected to the hose connection port and the water outlet side connected to the water inlet 19 may be provided.
  • a detergent dissolving vessel 21 for dissolving the detergent is provided between the main water supply solenoid valve 20 and the water inlet 19 so that the detergent liquid dissolved by the water from the main water supply solenoid valve 20 is supplied to the water inlet.
  • the detergent dissolving container 21 is provided with a finishing agent charging chamber 21a.
  • the flexible finishing agent charged in the finishing agent charging chamber 21d is supplied to the finishing agent charging chamber. It is configured to overflow from 21a and supply it to the water inlet 19.
  • the water inlet 19 penetrates through the bottom of the top cover 9 and the rear part of the outer tank upper cover 28 of the outer tank 5 and opens toward the upper opening of the washing and dewatering tank 2.
  • the hot air circulating drying means is formed so as to extend vertically upward along the outer wall surface on the rear side of the outer tub 5 from the suction port 5a formed on the lower side wall of the outer tub 5, and to form the suction port 5a.
  • a descending air duct which is a descending air passage that is vertically folded downward at a position higher than the water level of the outer tub 5 in the washing process and extends downward along the outer wall surface of the outer tub 5 toward the lower side of the outer tub 5.
  • a circulating fan 26 that is arranged in the space below the outer tub 5 and sucks air from the descending air duct 25 into the suction port to generate circulating air, and an outer tub from the outlet of the circulating fan 26
  • An upflow duct 27 and a heater (PTC heater) 29 which is a heating means installed on an outer tank upper cover 28 attached to the upper end of the outer tank 5 and which is a heating means for heating the circulating air sent from the upflow duct 27. It is provided with a blow-in port 30 for blowing heated circulating air into the washing and dewatering tub 2 therein.
  • the cooling water sprinkling section 24 is connected to the sprinkling electromagnetic valve 24a.
  • the water-cooling dehumidifying duct 23, the descending duct duct 25, and the rising duct duct 27, which constitute the circulating air passage, are arranged on the outer wall surface on the rear side of the outer tub 5 in a circumferential direction of the outer tub 5, and a part thereof is arranged.
  • the back lid la which is formed integrally with the outer tub 5 and covers the outside, is formed into a shape that swells outward and is screwed.
  • a humidity sensor 40 and a first temperature sensor 41 serving as humidity detecting means are installed in the descending air duct 25, and a second temperature sensor is provided in the air duct on the downstream side of the heater 29 of the blowing port 30. 42 is installed.
  • the humidity sensor 40 and the first temperature sensor In order to accurately detect the humidity and temperature of the circulating air dewatered in the water-cooled dehumidifying duct 23, the humidity sensor 40 and the first temperature sensor must be mixed after the circulated air cooled by the water-cooled dehumidification is mixed well. Therefore, the humidity sensor 40 and the first temperature sensor 41 are installed at the lower part of the downdraft duct 25 far from the water-cooled dehumidification duct 23 or at the suction location 26 a of the circulation fan 26. Further, the humidity sensor 40 and the first temperature sensor 41 are installed at positions where they are exposed when the back cover la is removed for convenience of maintenance work.
  • lint collecting means is provided at the folded portion from the water-cooled dehumidifying duct 23 to the descending air duct 25.
  • the drain port 5 b formed at the bottom of the outer tank 5 is connected to a drain hose 34 via a drain solenoid valve 33.
  • the air trap 5c is connected to the water level sensor 15 via an air tube 35.
  • a base 37 made of a synthetic resin with legs 36 attached to four corners is attached.
  • Reference numeral 38 denotes the laundry put into the washing / dewatering tub 2.
  • the hot air circulating drying means drains the washing water in the outer tub 5 after the washing, spins the washing and dewatering tub 2 at a high speed, spins the water, and then rotates the washing and dehydrating tub 2 at a high speed or at a low speed.
  • the circulating fan 26 is operated while the pulsator 4 is inverted, and the humid air in the outer tub 5 and the washing and dewatering tub 2 is sucked out from the outlet 5a, and the water-cooled dehumidifying dat 23 is raised.
  • the water is cooled and dehumidified by cooling water supplied from the cooling water sprinkling section 24 into the water-cooled dehumidifying duct 23.
  • the cooled and dehumidified air is sucked into the circulation fan 26 by descending the descending air duct 25, and the force of the circulating fan 26 is also sent to the blowing port 30 through the ascending air duct 27 and the heater 29. Blow into the center of the dewatering tank 2.
  • the circulating air blown into the washing and dewatering tub 2 as described above touches the laundry in the washing and dewatering tub 2 to dry the laundry.
  • FIG. 2 is a perspective view of a pulsator according to an embodiment of the present invention.
  • Pulsator 4 The surface has a V-shape symmetrical to the axis perpendicular to the rotation axis of the pulsator 4 (indicated by the two-dot chain line B-B in the figure), and the inclined plane 4b between which the central force increases toward the outer periphery and the inclined plane 4b The valley is composed of 4c.
  • the surface has a number of small holes 4a through which water for washing and hot air for drying flow.
  • the pulsator 52 shown in FIG. 12 is formed in a dish-like shape by curving upwardly so as to approach the peripheral edge thereof, and has a plurality of upwardly projecting radial blades 52b provided on the surface thereof. 52c is a number of small holes through which hot water flows during washing drainage and drying. Detergent power is generated by the frictional action of the radial blades 52b rubbing the laundry 38 and the fir action of deforming the laundry 38.
  • FIG. 13 is a cross-sectional view of the pulsator 52 taken along line AA in FIG. Since the blades 52b protrude at an acute angle with respect to the base surface of the pulsator 52, when the pulsator 52 is rotated, the rotational force acts on the laundry 38 more than the centrifugal force. That is, in the portion of the protrusion b projecting at a steep angle, the force that the laundry 38 receives the force of the protrusion, that is, the surface pressure, is sharply increased as compared with the both sides in the rotation direction of the protrusion. . For this reason, the force by which the protrusions carry the laundry 38 in the rotation direction is increased. As shown in FIG.
  • the laundry 38 slides and rolls on the pulsator 52, and is pushed in the direction of the pulsator 52 while being pushed by the blades 52b or being pulled by the blades 52b. I do. Also, a force is generated by the blade 52b to lift the laundry 38, Since 52b projects at a steep angle and its width b is also small, this force is slight, and the vertical movement of the laundry 38 hardly occurs. In addition, the slightly generated force is applied only to the stacked laundry that is in contact with or very close to the Nolseater 52, and is not transmitted to the laundry located in the upper layer.
  • FIG. 3 is a diagram in which the pulsator 4 is developed in the circumferential direction for about half the circumference, and illustrates the movement of the laundry 38 on the pulsator 4.
  • 4 is a longitudinal sectional view of the washing and dewatering tub 2
  • FIG. 5 is a plan view of the washing and dewatering tub 2 cut from the line CC in FIG. 4 and viewed from above.
  • the surface shape of the pulsator 4 has a shape in which the surface force changes smoothly in a shape in which the blades protrude at a steep angle as in the pulsator shown in Fig. 13, so that the laundry 38 is pushed or pulled by the blades. The laundry does not clump or get tangled, because it is not strong.
  • the laundry 38 moves from the valley 4c (a) along the inclined plane 4b to the upper side of the inclined plane 4b due to the wedge action (lifted upward). After reaching the uppermost part (a), it moves downward by gravity and repeats the vertical movement returning to the valley part 4c ( ⁇ ) again.
  • the natural frequency of the vertical movement of the laundry coincides with the frequency of the vertical movement of the blade surface, so that the vertical movement of the laundry can be given more efficiently. it can.
  • the laundry 38 moves to the outer peripheral portion of the pulsator 4 due to the centrifugal force generated by the rotation of the pulsator 4, and moves in the circumferential direction along the inner wall surface of the washing and dewatering tub 2. Place in This is because, as described above, the centrifugal force acts on the laundry 38 more strongly than the force in the rotation direction because the surface shape force of the pulsator 4 smoothly changes in the rotation direction. Since the outer peripheral portion has a large amplitude in the vertical direction of the blade surface, a large vertical movement can be given to the laundry 38 efficiently. When the rotation of the pulsator 4 stops, a movement of falling to the valley 4c is added, so that the laundry 38 is replaced, and no washing or drying unevenness occurs.
  • the laundry 38 collected on the outer periphery of the pulsator 4 by centrifugal force is broken by the vertical movement of the laundry 38. Further, as shown in FIG. 12, the laundry is not disposed over the central force and the outer peripheral portion of the pulsator 4, so that the clothes are not twisted due to the speed difference between the inner and outer peripheries.
  • the laundry 38 moves in the up and down direction, and rotates in the washing and spin-drying tub 2 in the same direction as the rotation direction of the noruster 4.
  • the laundry 38 moves up and down along the inclined plane 4b, during washing, the laundry 38 is washed by the effect of tap washing and push washing.
  • the volume of the washing / dewatering tub 2 can be effectively used by the vertical movement of the laundry 38, and the laundry 38 can be spread in the washing / dewatering tub 2 and can be quickly dried with less wrinkles. Since the laundry 38 moves up and down while rotating in the direction of rotation of the noursetter 4, a gap is generated between the laundry and warm air easily spreads not only on the surface of the laundry 38 but also inside the laundry 38. Evaporation of water from 38 is promoted and drying time can be shortened.
  • the pulsator 4 has an advantage that the amount of water during washing can be significantly reduced as compared with the pulsator of FIGS.
  • the washing and dewatering tub has sufficient washing water
  • the laundry 38 has a buoyancy and the pulsator surface force is slightly floated (separated).
  • the blades 52b By rotating the pulsator in this state, the blades 52b rubbed the laundry 38 to obtain detergency.
  • the blades 52b bite into the laundry 38, and the blades 52b and the laundry 38 are engaged.
  • the pulsator 52 is rotated in this state, the laundry 38 and the pulsator 52 rotate almost integrally, and no relative movement occurs and no detergency is generated.
  • the surface shape of the pulsator 4 changes smoothly. For this reason, even when the amount of washing water is small and the laundry 38 is on the pulsator, when the pulsator is rotated, the laundry 38 slides on the pulsator and moves up and down due to the wedge action of the inclined surface 4b, and is washed. Force is generated. When the amount of water is reduced, it is better to provide a means for circulating the washing water so that the washing water can be spread over the entirety of the washing, and to make the washing water fall from above the laundry.
  • the surface of the pulsator 50 is composed of a fan-shaped, generally mountain-shaped inclined surface 50b that rises from the center toward the outer periphery, and a valley portion 50c that connects the inclined surfaces 50b.
  • the outer periphery of the pulsator 50 has two vertices (tops) 50d in the circumferential direction, and a valley 50c is formed between the vertices 50d and 50d.
  • a ridge portion 50e is formed in which the rotational center force gradually increases toward the vertex 50d.
  • FIG. 7 is a diagram showing the pulsator 50 developed in the circumferential direction and a change in the shape of the inclined surface 50b in the circumferential direction.
  • the feature of this pulsator is that it has a mountain shape in which the inclination angle in the circumferential direction of the inclined surface 50b gradually increases toward the vertex at first, and gradually decreases as approaching the vertex. In this way, the valley 5 Oc is smoothly connected to the foot of the slope 50b, and the foot serves as a runway.
  • the laundry 38 can be efficiently jumped upwards near the apex where the inclination angle is steep while sliding on the runway. For this reason, a larger vertical movement can be given to the laundry.
  • the pulsator may be shaped with a single slope 5 lb, as shown in FIG.
  • the inclined surface 51b is an inclined surface extending from the outer peripheral portion beyond the rotation center axis to the other end.
  • Reference numeral 51c denotes a bottom surface connected to the lowest part of the inclined surface 51b
  • reference numeral 51a denotes a number of small holes through which warm water for drying and washing flows.
  • the inclined surface 51b has a size occupying at least half or more of the pulsator 51.
  • the entire pulsator 51 may have an inclined surface of 5 lb (in this case, there is no bottom surface 51c).
  • the outer peripheral force of the nourseta 51 also has a bottom surface 51c within a range of about 1Z4 in diameter.
  • the laundry easily moves above the inclined surface 51b.
  • the feature of this shape is that the height difference of the inclined surface 51b can be increased without increasing the inclination angle of the inclined surface 51b.
  • a maximum height difference of about 2 times can be secured at the same inclination angle.
  • the vertical movement of the laundry 38 can be further increased, and the capacity of the washing and dewatering tub 2 can be used more effectively, so that the laundry 38 can be prevented from spreading and quickly wrinkling during drying. .
  • the number of vertices (tops) existing on the outer peripheral portion of the pulsator is two, but as shown in FIG. 9, it may be three.
  • (A) is a perspective view of the pulsator
  • (b) is a side view
  • (c) is a top view (blade surface).
  • three valleys 60b are formed in the circumferential direction, and a top 60a is formed on the outer peripheral portion between the valleys 60b.
  • the rotational center force is also formed so that the height gradually increases toward the top 60a.
  • a ridge portion 60e is formed from the center of rotation toward the top portion 60a, and inclined surfaces 60c and 60d having different directions are formed on both sides in the circumferential direction of the ridge portion 60e.
  • the inclined surfaces 60c and 60d can be formed by a flat surface or a curved surface.
  • the shape is the same as that of the pulsator of FIG. 6 except for the numbers of the vertices 60a and the valleys 60b. However, as the number of vertices increases, it becomes more difficult to increase the height of the vertices and make the slope of the inclined surface small and gentle.
  • the number of peaks (mountains) in a washing machine or a washing / drying machine with a rated capacity of 6-10 kg for washing and dehydration and a drying capacity of 2-8 kg is 1-3. Is desirable. To increase the height of the vertices to give a large vertical movement to the laundry, and to reduce the slope and smooth the slope, the smaller the number of vertices, the better. Considering the rotation balance when the pulsator rotates, it is desirable to have two vertices.
  • the pulsator is rotated to move the laundry vertically along the inclined surface, and to rotate the laundry in the same direction as the pulsator. .
  • the greater the vertical movement of the laundry the greater the cleaning power, the shorter the drying time, and the lower the wrinkles.
  • the nor center of each of the above-mentioned embodiments has a large slip with the laundry, it is possible to further improve the detergency by providing minute irregularities or small blades on the inclined surface.
  • FIG. 10 shows a plan view (A) of the pulsator of FIGS. 2 and 6 as viewed from above (from the blade surface side) and heights (B) and (C) of the blade surface as representative examples.
  • (B) and (C) show changes in the height of the blade surface in the circumferential direction at radial positions where the radii from the center of rotation are R1, R2, and R3, respectively, in FIG.
  • FIG. (B) shows the case of the pulsator 4 of FIG. 2, in which the inclined surface 4b is a flat surface.
  • the peaks HI, H2, H3 where the heights are highest are generated.
  • a ridge is formed when these ridges are connected in the radial direction, and the ridge gradually increases toward the outer periphery of the rotational center force.
  • the top and the ridge can be defined in addition to the valley 4c.
  • FIG. (C) shows the case of the pulsator 50 of FIG.
  • the valley portion 50c, the top portion 50d, and the ridge portion 50e can be easily seen even if the blade surface height in the circumferential direction is illustrated.
  • FIG. 10 qualitatively shows the results of an experimental study of the relationship between the inclination angle of the inclined surface (the angle with respect to the direction of rotation of the pulsator), the upward and downward movement of the laundry, and the cloth entanglement. is there.
  • the inclination angle is preferably 15 to 25 °.
  • the height difference of the slope is about 0.13 to 0.22 times the pulsator diameter.
  • the inclination angle was preferably 15-30 °.
  • the laundry moves in the vertical direction of the washing and dewatering tub while sliding on the pulsator, and at the same time as the rotation direction of the pulsator. Since the laundry 38 rotates in the direction, the laundry 38 does not form a dumpling, and the laundry 38 is less likely to be entangled or twisted. For this reason, wrinkling of the laundry 38 can be suppressed, and the dry finish can be greatly improved. Further, occurrence of uneven drying due to entanglement can be prevented.
  • the pulsator disclosed in Patent Document 2 described above is provided with a flat surface oblique to the impeller rotation axis facing the inside of the washing tub on the impeller, and the flat surface is rotated around the impeller shaft to rotate the washing tub.
  • a pulse is generated in the water in the pulsator, and the fact that the pulsator surface is an inclined surface means that a force pulsator similar to the pulsator of the above-described embodiment (FIG. 8) is disposed at one corner of the bottom of the washing tub. (The diameter of the pulsator is small), the laundry cannot be moved up and down.
  • the pulsator of Patent Document 2 is applied to a washing and drying machine, only a part of the laundry moves, and the laundry cannot be dried because there is no water in the washing tub during drying.
  • the pulsator of Patent Document 3 is disposed on the inner bottom of the washing machine, and is provided with a plurality of blades that form a substantially radial fan shape toward the outer periphery of the central shaft, and at least one of these blades is provided. 1
  • the height of one blade is higher than that of the other blades, and this high blade has a central force of approximately 2Z3, which is directed toward the outer periphery.
  • the width of the outer periphery of the higher blade is set to 1.5 to 2 times that of the lower blade.
  • the pulsator shape of Patent Document 3 is for bringing the blades into contact with the laundry stepwise, reducing the load applied to the outer peripheral portion of the blades, and preventing an increase in the torque of the motor.
  • the fan-shaped blade When viewed from the top, the fan-shaped blade is similar to the pulsator of the above-described embodiment (FIG. 6). However, when viewed from the lateral direction, the height of the blade is also substantially constant as the central force is applied to the outer peripheral portion, which is different from the present invention in which the height is increased toward the outer peripheral portion.
  • the fan-shaped divergence angle is significantly smaller than that of the present invention, and the blade size is also small, the circumferential inclination of the blade is steep.
  • FIG. 14 shows the pulsator 60 deployed in the circumferential direction to show the vertical movement of the laundry 70 at each circumferential position on the pulsator 60.
  • FIG. It shows the circumferential movement of the laundry 70 on the pulsator 60 when viewed from above.
  • the principle of the movement of the laundry 70 at each position and the generation of detergency is as follows.
  • the laundry 70b pushed upward by the upward slope of the raised portion 74a jumps up at a position beyond the raised portion 74a to form a gap between the laundry 70b and the raised portion 74a.
  • the speed in the circumferential direction increases, and a gap is generated between the laundry adjacent in the circumferential direction (between the laundry 70a and the laundry 70b and between the laundry 70d and the laundry 70e).
  • the high detergent concentration of the washing water that falls from above enters these gaps and effectively penetrates into the laundry 70. Therefore, even if the water level that does not exceed the upper surface of the pulsator 60 is maintained, the washing water spreads throughout the laundry 70.
  • the laundry 70c jumped up at the raised portion 74a generates the detergency of the push-wash and slap-washing action as the downward gradient force of the raised portion 74a also falls to the position of the valley 74d.
  • a collision with the adjacent laundry 70d having a low circumferential speed occurs, and the washing power of the push-washing and slap-washing action is generated between the laundry 70 in front and rear of the circumferential direction. Further, the water seeps into the wash 70 and the water is pushed out together with the dirt.
  • a hand-washing hand-washing ! which works in the same way as a hand-washing hand-washing!
  • the rotation speed of the pulsator 60 it is desirable to set the rotation speed of the pulsator 60 to 130-140 rpm in a desirable size of the pulsator 60. If the rotation speed is lower than this, the movement of the laundry 70 may be small and the washing effect may be reduced. If the rotation speed is faster than this, the laundry 70 may not follow the vertical movement of the pulsator 60, and the movement of the laundry 70 may be small, and the washing effect may be reduced.
  • washing with a high detergent concentration while rotating the Norseta 60, and washing by circulating water have three functions of pressing, tapping, and rubbing with very little washing water. At the same time, a high detergency is obtained by exerting a complex effect.
  • Such movement of the laundry 70 by the pulsator 60 is also suitable in the rinsing step.
  • the gap between the laundry generated by the splashing of the laundry facilitates the infiltration of the rinsing water and penetrates into the laundry 70, so that the washing water and the detergent components that have permeated into the laundry 70 are removed. Extrude with a similar effect to increase rinsing efficiency.
  • FIG. 1 is a schematic view showing one embodiment of a washing and drying machine according to the present invention.
  • FIG. 2 is a perspective view of a pulsator according to an embodiment of the present invention.
  • FIG. 3 is a diagram showing the movement of laundry on the pulsator, with the pulsator of FIG. 2 being deployed about half way around in the circumferential direction.
  • FIG. 4 is a longitudinal sectional view of a washing and dewatering tub 2.
  • FIG. 5 is a plan view of the washing and dewatering tub 2 taken along line BB in FIG. 4 and viewed from above.
  • FIG. 6 is a perspective view of a pulsator according to an embodiment of the present invention.
  • FIG. 7 is a view in which the panolesetter of FIG. 6 is developed about half a circumference in the circumferential direction.
  • FIG. 8 is a perspective view of a pulsator according to an embodiment of the present invention.
  • FIG. 9 is a diagram showing a shape of a norseater having three vertices.
  • FIG. 10 is a view showing a blade surface height in a circumferential direction of a pulsator.
  • FIG. 11 is a view showing the relationship between the inclination angle of the inclined surface, the vertical movement of the laundry, and the cloth entanglement in the pulsator of the present invention.
  • FIG. 12 is a perspective view of a pulsator for comparing shapes.
  • FIG. 13 is a cross-sectional view of the pulsator of FIG. 12 taken along the line AA in FIG.
  • FIG. 6 is a diagram showing the vertical movement of the laundry by developing the pulsator of FIG. 6 in the circumferential direction.
  • FIG. 15 is a view showing the circumferential movement of the laundry when the pulsator of FIG. 6 is also viewed from above. Explanation of symbols

Abstract

L'invention concerne une machine à laver et à sécher permettant d'empêcher la réduction de la puissance de nettoyage et l'allongement du temps de séchage, les vêtements étant de ce fait moins entremêlés et moins froissé dans une lessive séchée. Ladite machine à laver et à sécher comprend une cuve de lavage et d'essorage (2), un pulsateur (4) installé sur la partie inférieure de ladite cuve de lavage et d'essorage (2) et un dispositif de commande destiné à entraîner le pulsateur (4). Ledit pulsateur (4) présente une inclinaison sur laquelle la lessive (38) glisse à partir du haut. Lorsque le pulsateur (4) est mis en rotation, la lessive se déplace verticalement et est entraînée en rotation en même temps dans le même sens que le pulsateur (4).
PCT/JP2004/013218 2003-09-10 2004-09-10 Machine a laver et a secher WO2005026426A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200480018449.5A CN1813091B (zh) 2003-09-10 2004-09-10 洗衣机及洗涤干燥机

Applications Claiming Priority (2)

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JP2003-317662 2003-09-10
JP2003317662A JP3984940B2 (ja) 2003-09-10 2003-09-10 洗濯機及び洗濯乾燥機

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WO2005026426A1 true WO2005026426A1 (fr) 2005-03-24

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WO (1) WO2005026426A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4856902B2 (ja) * 2005-06-16 2012-01-18 日立アプライアンス株式会社 洗濯乾燥機
JP4815413B2 (ja) * 2007-09-25 2011-11-16 日立アプライアンス株式会社 乾燥機及び洗濯乾燥機
JP4895955B2 (ja) * 2007-09-25 2012-03-14 日立アプライアンス株式会社 乾燥機及び洗濯乾燥機
JP4909851B2 (ja) * 2007-09-25 2012-04-04 日立アプライアンス株式会社 洗濯乾燥機
JP5358158B2 (ja) * 2008-11-07 2013-12-04 日立アプライアンス株式会社 乾燥機及び洗濯乾燥機
JP5526172B2 (ja) * 2012-03-14 2014-06-18 日立アプライアンス株式会社 乾燥機
JP5860763B2 (ja) * 2012-05-16 2016-02-16 日立アプライアンス株式会社 電気洗濯機
JP6431684B2 (ja) * 2014-04-18 2018-11-28 日立アプライアンス株式会社 電気洗濯機
JP7411955B2 (ja) * 2019-12-26 2024-01-12 青島海爾洗衣机有限公司 縦型洗濯機

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897374A (fr) * 1972-03-23 1973-12-12
JPS55130681U (fr) * 1979-03-13 1980-09-16
JPS5644676U (fr) * 1979-09-14 1981-04-22
JPH01146584A (ja) * 1987-12-02 1989-06-08 Matsushita Electric Ind Co Ltd 洗濯機
JPH07323176A (ja) * 1994-02-22 1995-12-12 Whirlpool Corp 竪軸型洗濯機での洗濯方法
JPH10192587A (ja) * 1997-01-09 1998-07-28 Mitsubishi Electric Corp 洗濯機
JP2002102587A (ja) * 2000-09-29 2002-04-09 Matsushita Electric Ind Co Ltd 洗濯乾燥機および洗濯機
JP2003071186A (ja) * 2001-08-31 2003-03-11 Hitachi Ltd 洗濯乾燥機

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3178967B2 (ja) * 1994-07-08 2001-06-25 株式会社東芝 脱水兼用洗濯機
KR200149201Y1 (ko) * 1996-04-29 1999-06-15 전주범 세탁기의 회전익
CN2542702Y (zh) * 2002-01-31 2003-04-02 海尔集团公司 洗衣机搅拌器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897374A (fr) * 1972-03-23 1973-12-12
JPS55130681U (fr) * 1979-03-13 1980-09-16
JPS5644676U (fr) * 1979-09-14 1981-04-22
JPH01146584A (ja) * 1987-12-02 1989-06-08 Matsushita Electric Ind Co Ltd 洗濯機
JPH07323176A (ja) * 1994-02-22 1995-12-12 Whirlpool Corp 竪軸型洗濯機での洗濯方法
JPH10192587A (ja) * 1997-01-09 1998-07-28 Mitsubishi Electric Corp 洗濯機
JP2002102587A (ja) * 2000-09-29 2002-04-09 Matsushita Electric Ind Co Ltd 洗濯乾燥機および洗濯機
JP2003071186A (ja) * 2001-08-31 2003-03-11 Hitachi Ltd 洗濯乾燥機

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JP3984940B2 (ja) 2007-10-03
CN102535099B (zh) 2014-10-08
CN1813091A (zh) 2006-08-02
CN102535099A (zh) 2012-07-04
CN1813091B (zh) 2012-02-08
CN1827897B (zh) 2010-12-08
CN101525829B (zh) 2011-07-13
CN1827897A (zh) 2006-09-06
JP2005080946A (ja) 2005-03-31
CN101525829A (zh) 2009-09-09

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