CN102535099B - Washing machine and washing-drying machine - Google Patents

Washing machine and washing-drying machine Download PDF

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Publication number
CN102535099B
CN102535099B CN201210006274.2A CN201210006274A CN102535099B CN 102535099 B CN102535099 B CN 102535099B CN 201210006274 A CN201210006274 A CN 201210006274A CN 102535099 B CN102535099 B CN 102535099B
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China
Prior art keywords
washings
agitator
washing
mentioned
rotary body
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CN201210006274.2A
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CN102535099A (en
Inventor
小池敏文
大林史朗
釜野年恭
宫野让
桧山功
吉田哲士
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Hitachi Appliances Inc
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Hitachi Appliances Inc
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F17/00Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/06Washing 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
    • D06F17/10Impellers

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Abstract

A washing-drying machine with a pulsator, where cleaning power is prevented from being reduced and drying time is prevented from being lengthened, which causes less clothes tangling and less wrinkles in dry finished laundry. A washing-drying machine has a washing-cum-dewatering vessel (2), a pulsator (4) provided on the bottom of the washing-cum-dewatering vessel (2), and a drive device for driving the pulsator (4). The pulsator (4) has a slope where laundry (38) is brought upward while being caused to slide. When the pulsator (4) is rotated, the laundry is moved vertically, and rotated at the same time in the same direction as the pulsator (4) rotates.

Description

Washing machine and scrubbing-and-drying unit
The application is divisional application, and the applying date of original application is on September 10th, 2004, and application number is 200480018449.5, and denomination of invention is washing machine and scrubbing-and-drying unit.
Technical field
The present invention relates to a kind of washing machine or scrubbing-and-drying unit, this washing machine possesses the agitator of mechanical force being paid to washings.
Background technology
As existing scrubbing-and-drying unit, known (for example from institute, with reference to patent documentation 1) formation be: in washing running, carry out after water pipe water (washings) feedwater, make agitator positive and negative rotation, make mechanical force in the washing running of washings, thereafter, carry out in by water pipe water (washings) feedwater, make equally mechanical force in the rinsing running of washings, thereafter, carry out by making the rotation of washing and dewatering bucket, the dehydration running of the washings centrifugal dehydration in washings will be contained in, again thereafter, carry out one side warm braw is supplied with to washing and dewatering bucket, one side makes washing and dewatering bucket and the rotation of agitator one, or make agitator positive and negative rotation, make washings alternatively up and down, (for example make the dry dry operation of washings, with reference to patent documentation 1).Fold when dry is because the attitude of washings is dried and produces with immobilizing.The running of the agitator rotating while making dry operating, except playing the effect of the evaporation that makes washings alternatively up and down promote moisture, also has by washings and moves attitude is changed, and making can the motionless effect of warpage with a part.
As the agitator for washings, well-known is towards arranging in washtub and the smooth face (for example,, with reference to patent documentation 2) of rotating shaft oblique.The size of this agitator is less than the bottom surface of washtub, is located at a jiao in washtub.When making this agitator in the time that rotating shaft rotates, produce pulse towards washtub, produce upward water flow.
In addition, as the agitator for washing machine, the rotary wings of well-known washing machine is the inner bottom part that is disposed in washing machine, and is provided with many general radial and becomes the blade (for example,, with reference to patent documentation 3) of fan-shaped from the outside perimembranous of central authorities.
In the washing machine that possesses agitator, uneven in order to reduce washing, carry out well rinsing etc., improve and clean effect, preferably reduce cloth and be wound around.And in the scrubbing-and-drying unit that possesses functions/drying, in order to realize the dry finishing that fold is few, in washing procedure and dry operating, need to reduce cloth and be wound around.Be wound around if there is cloth, the partial shape of winding is fixed, and will cause fold.
Be wound around in order to reduce cloth, need to dwindle the anglec of rotation (reduce rotation number, shorten rotational time) of agitator, but be in the suds, the mechanical force that offers washings will diminish, and cleaning strength will decline.In addition, in dry, alternately will diminishing of the movement of cloth or cloth, can produce elongated problem of uneven drying or drying time.
In above-mentioned agitator, towards being provided with in washtub with the agitator of the smooth face of rotating shaft oblique for there is no the washing machine of dehydrating function and functions/drying.The size of agitator is less than the bottom surface of washtub, and is located at a jiao of washtub inner bottom part.The amount of the washings that this washing machine once can be washed is few, and will use a lot of water.With (water yield)/(cloth amount) represent bath raio (bath raio) used with the state larger than the washing machine of present situation.Therefore, in washing and dehydration capacity is large, bath raio is washed littlely and the washing machine that dewaters or the scrubbing-and-drying unit that further added functions/drying in, reduce cloth about effectively mechanical force being offered to washings when and be wound around, need to further study.
In addition, be slightly provided with the many agitators that form radially the blade of fan-shaped from the outside perimembranous of central authorities, blade height is from central portion to periphery, nearby to form same height.Especially at central portion, the thickness of blade (size of direction of rotation or Zhou Fangxiang) is little, becomes from the datum level of agitator with the outstanding shape of anxious angle.The power that the shape of this blade is very large to washings effect, easily causes cloth to be wound around.
In addition, above-mentioned all agitators are all to use to use on the washing machine that there is no functions/drying, do not look after for realizing the dry finishing that fold is few.
Patent documentation 1: JP 2002-360966 communique (7-9 page)
Patent documentation 2: examined patent publication 35-8440 communique (the 1st page, the 7th figure)
Patent documentation 3: real description of being willing to clear No. 55-15919 (opening clear No. 56-116972 in fact) and accompanying drawing (the 1st page, the 1st figure and the 2nd figure).
Summary of the invention
In the present invention, the rotary body of being located at the bottom of washtub possesses by it and rotatablely moves and the movement of above-below direction is given to the inclined plane of washings.The size of the diameter of rotary body be washtub internal diameter 90% or more than, inclined plane is following to be formed: in the time that rotary body rotate, make outer Monday from washings to rotary body side shifting centrifugal force is worked, simultaneously outer Monday of rotary body side simultaneously give washings by movement upwards to simultaneously making washings slide on inclined plane.In addition, can be in the time that the rotation of rotary body stops, Jiang Xiang inclined plane, inclined plane slid underneath gives washings.
Specifically, rotary body possesses inclined plane towards washtub inner side, form inclined plane, make in side outer Monday of rotary body, the top uprising in circumferential above-below direction position and the valley portions of step-down increase height gradually from the rotating center section of rotary body to top, form top and valley portions, make to be longer than to the circumferential lengths of the lowest part of valley portions from the highest portion at top the difference of height of top and valley portions.Top, in side outer Monday of rotary body, circumferentially forming 1 to 3, is preferably 2.Inclined plane also can be formed by plane.
On above-mentioned rotary body, the strength that washings is transported to direction of rotation diminishes, and washings is accepted centrifugal force by the rotation of rotary body, easily from central authorities' one side direction perisporium (sidewall) side shifting of washtub.By rotary body outer Monday side the movement of the washings above-below direction that given to perisporium one side shifting of fluctuating, pay mechanical force.And then the washings that focuses on perisporium one side disperses by the movement of above-below direction, contribute to alternately.In scrubbing-and-drying unit, the dispersion of the washings when dry is worked especially effectively, can reduce cloth and be wound around.
According to washing machine of the present invention or scrubbing-and-drying unit, it is the simple formation that merely makes agitator rotarily actuate around rotating shaft, give washings mechanical force by giving moving of washings above-below direction, improve cleaning strength, and can reduce cloth and be wound around, so can reduce washing inequality and produce fold.
Brief description of the drawings
Fig. 1 is the ideograph that represents an embodiment of scrubbing-and-drying unit of the present invention.
Fig. 2 is the stereogram that represents the agitator of an embodiment of the invention.
Fig. 3 is the agitator that is illustrated in the about half cycle expanded view 2 of circumferencial direction, the figure of the movement of the washings on agitator.
Fig. 4 is the longitudinal section of washing and dewatering bucket 2.
Fig. 5 dissects washing and dewatering bucket 2 along the B-B line of Fig. 4, the top view of seeing from top.
Fig. 6 is the stereogram of the agitator of an embodiment of the invention.
Fig. 7 is the figure at the agitator of the about half cycle expanded view 6 of circumferencial direction.
Fig. 8 is the stereogram of the agitator of an embodiment of the invention.
Fig. 9 is the figure that has represented to form the shape of the agitator on 3 summits.
Figure 10 is the figure that represents the blade surface height on the circumferencial direction of agitator.
Figure 11 is the figure that represents the relation of the angle of inclination on inclined plane of agitator of the present invention and the movement of the above-below direction of washings and cloth winding.
Figure 12 is the stereogram of the agitator for comparing shape.
Figure 13 is the cutaway view that has dissectd the agitator of Figure 12 along the A-A line of Figure 12.
Figure 14 is the agitator that is illustrated in circumferencial direction expanded view 6, the figure of the movement of the above-below direction of washings.
Figure 15 is the agitator that represents to see from top Fig. 6, the figure of the movement of the circumferencial direction of washings.
In figure
1-housing; 2-washing and dewatering bucket; 4-agitator; 4b--inclined plane; 5-outer barrel; 6-drive unit; 23,25,27-conduit; The cooling watering of 24-portion; 26-fan; 29-heater; 50-agitator; 50b-inclined plane; 51-agitator; 51b-inclined plane
Detailed description of the invention
On the agitator of washing machine or scrubbing-and-drying unit, circumferentially form inclined plane along it, this inclined plane forms the fluctuating of above-below direction.Inclined plane can be both plane, can be also curved surface.The rotary middle spindle of agitator is configured in the bottom center portion of washtub, forms the large footpath of the bottom inside that covers washtub.Here, the bottom inside of so-called covering washtub is not 100% the meaning that must cover bottom inside.If washtub is made to drum, the external diameter of agitator can be made roughly unanimously with the internal diameter of washtub, also can between the peripheral part of agitator and the perisporium of washtub, interval be set.In addition, the external diameter of agitator be washtub internal diameter 90% or more than.Outside it, side possesses the top that the protuberance of fluctuating uprises to agitator Monday, and the height of fluctuating is to uprise gradually to the summit at top from the rotating center section of agitator.In order to ensure the height rising and falling, and make the inclination on inclined plane mild, rise and fall and circumferentially possessing 1 to 3 ledge.For higher, the inclined plane of height that makes to rise and fall more gently forms, the quantity of ledge is less for well, but the balance of consideration agitator while rotating preferably made 2 ledges.
In above-mentioned agitator, the power that washings is transported to direction of rotation diminishes, and washings is accepted centrifugal force by the rotation of agitator, easily from central authorities' one side direction perisporium (sidewall) side shifting of washtub.To perisporium one side shifting washings by agitator outer Monday side fluctuating give the movement of above-below direction, paid mechanical force.And then the washings that focuses on perisporium one side disperses by the movement of above-below direction, contribute to alternately.In scrubbing-and-drying unit, the dispersion of the washings when dry is worked especially effectively, can reduce cloth and be wound around.
Describe as an example of scrubbing-and-drying unit example below.In addition, owing to carrying out dehydration procedure in this routine scrubbing-and-drying unit, so the washtub of putting into washings is described as washing and dewatering bucket.
Fig. 1 is the ideograph that the scrubbing-and-drying unit of an embodiment of the invention is represented with vertical profile cross section.
The 1st, the housing of four limit tubulars of formation gabarit.Housing 1 is steel plate system.The 2nd, washing and dewatering bucket, possesses the aperture 2a for water flowing and ventilation at its perisporium (sidewall), its upper edge possesses fluid balancer 3, is provided as freely the agitator 4 that mechanical force is offered to the rotary body of washings in the interior sideway swivel of bottom.Agitator 4 possesses the aperture 4a for water flowing and ventilation.The 5th, outer barrel, washing and dewatering bucket 2 is inside housed, be detained washings and washings, by the mounting seat 7 of steel plate system, drive unit 6 is arranged on to the outside of bottom, 4 anti-vibration supports 8 in 4 bights of the upper end by being fixed on housing 1 are hung outer barrel 5 equably from four directions, dangled thus the central part of housing 1 keep.
Agitator 4 be large footpath that the major part of the bottom of washing and dewatering bucket 2 is covered (outside dimension be washing and dewatering bucket internal diameter size 90% or more than), be configured to the rotary middle spindle line overlap of its pivot axis and washing and dewatering bucket 2.Shape about agitator 4 will describe in detail thereafter.
The in-built drive motor of drive unit 6 and electric operating clutch mechanism and planetary gear reducing mechanism, possess and optionally drive function, make to make agitator 4 rotate (stir mode) under the state that washing and dewatering bucket 2 is static, make the rotation (washing mode) round about separately of washing and dewatering bucket 2 and agitator 4, make washing and dewatering bucket 2 and agitator 4 one to same direction rotation (dehydration, drying mode).
The top cover 9 that forms outside clothes inlet 9a cover housing 1 upper opening embed this open end edge, be arranged on housing 1 together with front panel 10 and rear board 11 by mounting screw.
The outside clothes inlet 9a forming on top cover 9 is opened and closed freely and is covered by enclosing cover 31, this enclosing cover 31 is arranged on top cover 9 by hinge 31a, can open by 2 foldings (projection is folding), the inner side clothes inlet 28a forming on the outer barrel upper cover 28 of upper end that is installed on outer barrel 5 is opened and closed freely and is covered by inner cap 32, and this inner cap 32 is arranged on outer barrel upper cover 28 by hinge 32a.
The anterior resettlement section forming between top cover 9 and front panel 10 is to be equipped with in front panel case 12: possess power switch 13 and input switch and represent the guidance panel 14 of element; Send with outer barrel 5 in the level sensor 15 of the corresponding water level signal of water level; And control module 16.These form control device.
The resettlement section, rear portion forming between top cover 9 and rear end panel 11 is washings feed mechanism to be housed in rear board case 17.Washings feed mechanism is to be connected to the main water-suppling electromagnetic valve 20 that valve is fastened on connector 18, water outlet one side is connected on water filling port 19 and to form by entering water one side as follows.And, though without diagram, also can arrange by entering the feed mechanism that water one side is connected on flexible pipe connector, water outlet one side is connected on water filling port 19 and bathtub water pump forms.
Between main water-suppling electromagnetic valve 20 and water filling port 19, be provided with the detergent dissolution container 21 of dissolving detergent, lysed the water of autonomous origin water-suppling electromagnetic valve 20 washing agent liquid is supplied with to above-mentioned water filling port.In detergent dissolution device 21, set up softener and dropped into chamber 21a, by feeding water from auxiliary feedwater electromagnetic valve 22, made the softener dropping in this softener input chamber 21a drop into the 21a of chamber and overflow from softener, supplied with water filling port 19.
Water filling port 19 connects the rear portion of the end of top cover 9 and the outer barrel upper cover 28 of outer barrel 5, towards the upper opening inner opening of washing and dewatering bucket 2.
Warm braw cyclic drying mechanism possesses: dehumidifying wind path portion is water-cooled dehumidifying conduit 23, stretches upwards formation from the suction outlet 5a of sidewall of the bottom that is formed at outer barrel 5 along the outside wall surface of the rear side of outer barrel 5 with plumbness, stops the washings that enter from suction outlet 5a; Water-cooled desiccant body is cooling watering portion 24, is positioned at the top of this water-cooled dehumidifying conduit 23, in cooling water supplying duct; The decline wind path portion wind path conduit 25 that declines, turns back in the high position of water level of the outer barrel 5 than in washing procedure, the downside vertical stretching along the outside wall surface of outer barrel 5 to outer barrel 5; Circulating fan 26, is configured in the space of the downside of outer barrel 5, air is sucked to suction inlet from decline wind path conduit 25, generation cycle air; The rising wind path portion wind path conduit 27 that rises, stretches along the outside wall surface upward direction plumbness of outer barrel 5 from the blow-off outlet of this circulating fan 26; And be blown into mouthfuls 30, be arranged on the outer barrel upper cover 28 of the upper end that is installed on outer barrel 5, it is heater (ptc heater) 29 that the heating arrangements that the circulating air of sending into from rising wind path conduit 27 is heated is inside housed, and warmed-up circulating air is blown in washing and dewatering bucket 2.Cooling water watering portion 24 is connected on watering electromagnetic valve 24a.
Water-cooled dehumidifying conduit 23, decline wind path conduit 25 and the rising wind path conduit 27 that forms circulation wind path the outside wall surface of the rear side of outer barrel 5 side by side week of outer barrel 5 upwards, its part and the one-body molded installation of outer barrel 5, the rear side cover 1a that covers these outsides forms the shape of bulging laterally, and spiral is fixed.
In addition, at decline wind path conduit 25, the interior Humidity Detection mechanism that arranges is humidity sensor 40 and the 1st temperature sensor 41, in the one crosswind road, downstream of heater 29 that is blown into mouth 30, the 2nd temperature sensor 42 is set.For good accuracy detect the humidity and temperature at the interior circulating air having been dehumidified by water-cooled of water-cooled dehumidifying conduit 23, after the circulating air having been dehumidified by water-cooled mixes well, preferably make its contact humidity sensor 40 and the 1st temperature sensor 41, therefore, humidity sensor 40 and the 1st temperature sensor 41 are arranged on the bottom of decline wind path conduit 25 or the suction cover 26a of circulating fan 26 away from water-cooled dehumidifying conduit 23.And then for the ease of maintenance activity, humidity sensor 40 and the 1st temperature sensor 41 are in the setting position exposing while unloading rear side cover 1a.
In addition, here omit and illustrate, possess chip trapping mechanism in the part of turning back to decline wind path conduit 25 from water-cooled dehumidifying conduit 23.
The water discharge outlet 5b forming at the end of outer barrel 5 is connected on scupper hose 34 by drain solenoid valve 33.Choke box 5c is connected on above-mentioned level sensor 15 by snorkel 35.Be equipped with by the base 37 of the molding synthetic resin of leg 36 being installed at four jiaos in the lower edge of housing 1.
In addition, reference marks 38 is washings of putting in washing and dewatering bucket 2.
Warm braw cyclic drying mechanism carries out draining by the washings in outer barrel 5 after washing, make after the 2 High Rotation Speed dehydrations of washing and dewatering bucket, High Rotation Speed or one side low speed rotation, or one side makes agitator 4 positive and negative rotation one sides by rotary fan 26 is turned round, by the wet air in outer barrel 5 and washing and dewatering bucket 2 from suction outlet 5a sucking-off, in the process of water-cooled dehumidifying conduit 23 interior risings, carry out cooling and dehumidifying by the cooling water of supplying with in water-cooled dehumidifying conduit 23 from cooling watering portion 24.Thereafter, by cooling and dehumidifying air decline at decline wind path conduit 25, and suck circulating fan 26, send into and be blown into mouthfuls 30 by rising wind path conduit 27 and heater 29 from this circulating fan 26, heat by heater 29, the central portion in washing and dewatering bucket 2 is blown into.Like this, be blown into the washings in the circulating air contact washing and dewatering bucket 2 of washing and dewatering bucket 2, dry washing material.
The movement of the cloth of the shape of agitator and washing and the washings when dry is described below.
Fig. 2 is the stereogram of the agitator of an embodiment of the invention.The surface of agitator 4 is V-shapes symmetrical about the axle of the rotating shaft perpendicular to agitator 4 (representing with double dot dash line B-B in figure), and the valley portions 4c between clinoplain 4b and clinoplain 4b that You Cong center uprises towards peripheral part forms.There are multiple aperture 4a of the water in when washing of flowing and the warm braw when dry on surface.From washing and dewatering bucket 2 (fixing a side), in the time that agitator 4 rotates, the top of the surface of agitator 4 from valley portions 4c to clinoplain 4b increases height gradually, arrives after topmost, highly reduces towards valley portions 4c.The point that the surperficial height of agitator 4 gradually changes is very different with the agitator that Figure 12 and Figure 13 represent, this is preventing having brought into play very large effect in cloth winding.In the present embodiment, in the time that agitator 4 rotates 1 week, the surface of agitator 4 occurs 2 times and moves up and down.This amplitude moving is up and down near more peripheral part is larger.
The agitator of Figure 12 and Figure 13 is here described.
In the scrubbing-and-drying unit that possesses agitator, produce the few dry finishing of fold in order to realize, in washing procedure and dry operating, need to reduce cloth and be wound around.Be wound around if there is cloth, the shape of the part of winding will fixedly cause fold to produce.The agitator 52 that Figure 12 represents is bit by bit pushed to peripheral edge portion to be bent upwards to form plate-like form, is provided with the many radial blade 52b that protrude upward on its surface.52c is the multiple apertures of the draining of washing and the warm braw when dry of flowing.Radial blade 52b is by the rubbing action of friction washings 38 and the kneading action generation cleaning strength that washings 38 is out of shape.
Figure 13 is the cutaway view that has dissectd agitator 52 along the A-A line of Figure 12.Because blade 52b is outstanding with anxious angle with respect to the seating plane of agitator 52, so in the time that agitator 52 rotates, on washings 38, effect has the revolving force larger than centrifugal force.That is: in the part of the protuberance b outstanding with anxious angle, compared with the two side portions of the direction of rotation of this protuberance, the power that washings 38 is accepted from this protuberance is that face is pressed and sharply become large.Thus, it is large that the power that this protuberance transports washings 38 to direction of rotation becomes.Washings 38 as shown in figure 13, slide and rolling on agitator 52 by one side, and one side is pressed by blade 52b or tangled by blade 52b, with the direction of rotation of agitator 52 equidirectional rotate.In addition, although blade 52b also produces the power that will lift washings 38, because blade 52b is outstanding with anxious angle, b is also little for its width, so this power is very small, produces hardly the movement of the above-below direction of washings 38.In addition, due to power small and that produce be only added in overlapping washings, contact with agitator 52 or very approaching washings on, pass less than the washings that is positioned at upper strata.
In the time that washings 38 rolls on agitator 52, washings 38 easily becomes wad shape, becomes the state that Yi Fashengbu is wound around.And, as shown in figure 12, if configure washings 38 from agitator 52 center to periphery, due to the central part of agitator 52 and the speed difference of peripheral part, the part rolling that is positioned at peripheral part is more, occurs to twist around (obviously occurring on the long sleeves of shirt and the isometric clothing of trousers).Due to agitator 52 rotating repeatedly, so this is twisted around by rotating and eliminate round about, but in fact washings is not positive and negative rotation symmetrically, twists around meeting gradually more very.Because this is twisted around making washings 38 become faciola shape, further easily become thus the state that cloth is wound around.Thus, the fold of clothing corrugation occurs on washings 38, dry finishing reduces.
Be wound around in order to reduce cloth, need to make the anglec of rotation of agitator diminish (reduce rotation number, shorten rotational time), but be in the suds, the mechanical force that offers washings will diminish, and cleaning strength will reduce.In addition, in dry,, can there is elongated problem of uneven drying and drying time in alternately will diminishing of the movement of cloth or cloth.
The movement of the washings while washing being described with Fig. 3 to Fig. 5 and when dry.Fig. 3 is that about half cycle has launched the figure of agitator 4 in a circumferential direction, and the movement of the washings 38 on agitator 4 has been described.Fig. 4 is the longitudinal section of washing and dewatering bucket 2, and Fig. 5 dissects washing and dewatering bucket 2 along the C-C line in Fig. 4, the top view of seeing from top.
When on the position of the valley portions 4c that washings 38 represents at (I) by Fig. 3, if agitator 4 rotate in the direction of arrows, washings 38 one sides are slided simultaneously and the equidirectional rotation of direction of rotation of agitator 4 on the clinoplain 4b of agitator 4.The surface configuration of agitator 4 be not mixing arm as shown in figure 13 from surface with the outstanding shape of anxious angle, but the shape of smooth variation, thus washings 38 can not pushed down or tangle by blade, so washings can not become wad shape or winding.Simultaneously, washings moves (lifting upward) in the top from valley portions 4c (I) along clinoplain 4b to clinoplain by wedge effect, arrive after topmost (II), move downwards due to gravity, again repeat the motion of the above-below direction that returns to valley portions 4c (III).At this moment,, by selecting rightly the rotation number of agitator, the moving vibration number up and down of the intrinsic vibration number of the above-below direction of washings motion and blade surface is consistent, can more effectively offer the upper and lower movement of washings.
In addition, as shown in Figures 4 and 5, the centrifugal force that washings 38 brings by the rotation of agitator 4 moves to the peripheral part of agitator 4, along the internal face Zhou Fangxiang of washing and dewatering bucket 2 configure.This is due to as previously mentioned, and the surface configuration of agitator 4 gently changes in direction of rotation, so washings 38 centrifugal force are acted on more strongly than the power of direction of rotation.Because the amplitude of the above-below direction of the blade surface of peripheral part is large, so can more effectively very large moving up and down be offered to washings 38.And, because the rotation one of agitator stops adding the motion of falling to valley portions 4c, replace, wash inequality or uneven drying so can there is not washings 38.That is: the washings 38 that focuses on the peripheral part of agitator 4 by centrifugal force disperses by the movement of the above-below direction of washings 38.And then, due to not as shown in figure 12 washings from the center of agitator 4 to peripheral part distribute, so can on clothing, not produce due to the speed difference of interior week and periphery twist around.
So, washings 38, when above-below direction moves, rotates with the direction of rotation of agitator 4 in washing and dewatering bucket 2 equidirectionally.Move up and down along clinoplain 4b by washings 38, in the time of washing, washings 38 can be washed and clean by the effect of compressing and washing by beating.In addition, when dry, by the volume that can effectively utilize washing and dewatering bucket 2 that moves up and down of washings 38, washings 38, in the interior easy expansion of washing and dewatering bucket 2, can be realized few being dried of fold.And, because washings 38 one sides rotation one side in the direction of rotation of agitator 4 moves up and down, so produce gap between washings, warm braw not only passes to the surface at washings 38, also easily pass to inside, can promote thus the evaporation of the moisture in washings 38, can shorten drying time.
And then, there is the advantage of the water yield while significantly reducing washing compared with the agitator of agitator 4 and Figure 12 and Figure 13.With regard to the agitator of Figure 12 and Figure 13, abundant in washroom dehydration barrel washed water, washings 38 is because buoyancy becomes the state that floats a little (leaving) from agitator surface.Under this state, rotate by agitator, the blade 52b washings 38 that rubs, obtains cleaning strength.If reduce the amount of washings on the agitator of Figure 12 and Figure 13, washings 38 is placed on agitator 52, and blade 52b falls in washings 38, and blade 52b and washings 38 become engagement.Under this state, if agitator 52 rotates, washings 38 and roughly rotation integratedly of agitator 52, do not produce relative motion, do not produce cleaning strength.
Unlike this, the surface configuration of agitator 4 gently changes.Thus, even if the few washings 38 of the amount of washings is placed in the state on agitator, if agitator rotation, washings 38 one sides are slided on agitator, and one side is moved at above-below direction by the wedge effect of inclined plane 4b, produces cleaning strength.In addition, in the time reducing the water yield, in order to make washings spread all over washings entirety, the cycling mechanism of washings is preferably set, from the top spray washing water of washings.
The shape on inclined plane as shown in Figure 6, even if chevron also can realize and the movement of above-mentioned roughly the same cloth.The surface of agitator 50 is that the valley portions 50c coupling together between 50bHe Jiang inclined plane, the inclined plane 50b of the roughly chevron that uprised by the therefrom mind-set peripheral part of fan-shaped forms.There is 2 week summit (top) 50d upwards in the periphery of agitator 50, between summit 50d and summit 50d, form valley portions 50c.From the pivot 50e of ridge portion that apicad 50d height of formation uprises gradually.The direction difference that inclined plane 50b points in the circumferential both sides of the 50e of ridge portion.In addition, inclined plane 50b can be both plane, can be also curved surface.50a is aperture, the water in when washing of flowing and the warm braw when dry.Fig. 7 represents agitator 50 to launch at circumferencial direction, the figure of the change of shape of the circumferencial direction of inclined plane 50b.The feature of this agitator is to make chevron shape, and it is large that the angle of inclination of the circumferencial direction of its inclined plane 50b becomes at first gradually towards summit, approaches summit rear-inclined angle and diminish gradually.Thus, the foot of a mountain portion of inclined plane 50b is from the smooth and easy connection of valley portions 50c, and the effect on run-up road is played by this foot of a mountain portion.Washings 38 can one side slide in this run-up, and one side is effectively takeoff upward near the summit of angle of inclination steepening.Thus, larger moving up and down can be offered to washings.
In addition, even if the change of the radial skew angle of inclined plane 50b is large, make the difference of height on agitator surface become large, because change of shape is mild, clothing is also difficult to rolling, and winding can not occur on washings provides very large moving up and down.Therefore, can improve cleaning strength and drying efficiency.Certainly, preferably make Shan center, chevron inclined plane angle increase (approaching 180 °) as far as possible, make inclined plane 50b large, valley portions 50c is little.
Agitator can be also the shape that has single inclined plane 51b as shown in Figure 8.Inclined plane 51b crosses rotary middle spindle from peripheral part to be cross over Yi Ce inclined plane, the other end.51c is the bottom surface that is connected to the lowest part of inclined plane 51b, and 51a is the multiple apertures of the water in when washing and the warm braw when dry of flowing.On figure, represent inclined plane 51b by plane, but can be also as the inclined plane of the chevron of Fig. 6.Inclined plane 51b has and at least occupies the half of agitator 51 or above size.Agitator 51 entirety can certainly be made to inclined plane 51b (at this moment there is no bottom surface 51c).But due to the effect on bottom surface 51c performance run-up road, so bottom surface 51c is set in the scope of 1/4 left and right of thoughtful diameter from agitator 51, washings is easy to move to the top of inclined plane 51b.Even if the feature of this shape is not make the angle of inclination of inclined plane 51b become large, also can make the difference of height of inclined plane 51b large.The agitator that possesses relative inclined plane representing with Fig. 2 is compared, and can guarantee with identical angle of inclination the difference of height of the most about 2 times.Thus, can make moving up and down of washings 38 larger, more effectively use the volume of washing and dewatering bucket 2, when dry, washings 38 easily launches thus, can suppress fold and produce.
The quantity that is present in the summit (top) of the peripheral part of agitator in Fig. 6 and Fig. 7 is 2, but also can consider to make as shown in Figure 93.(a) being the stereogram of agitator, (b) being side view, is (c) to overlook (blade surface) figure.In the agitator 60 of Fig. 9, circumferentially forming 3 valley portions 60b and the formation of the peripheral part between valley portions 60b and valley portions 60b top 60a.Between valley portions 60b and valley portions 60b, from rotating center section to top 60a, uprise highly gradually.At this moment, form the 60e of ridge portion from rotating center section to top 60a, at different inclined plane 60c, the 60d of the each self-forming pointing direction in the circumferential both sides of the 60e of this ridge portion.This inclined plane 60c, 60d both can be formed by plane, also can be by Surface forming, if remove beyond the quantity of summit 60a and valley portions 60b, shape is same with the agitator of Fig. 6.But, the quantity on summit is more many be more difficult to make the height on summit to uprise and the inclination on inclined plane diminish flatten slow.Be that 6~10kg, drying capacity are washing machine or the scrubbing-and-drying unit of 2~8kg left and right to the rated capacity of washing and dehydration, the quantity on summit (mountain) is preferably 1~3.In addition, if the height on summit is become compared with high and very large moving up and down offered to washings, and make inclined plane mild in order to make to tilt to diminish, the quantity on summit is for more few better.If the balance while considering agitator rotation, preferably makes summit 2.
As mentioned above, the agitator of the respective embodiments described above by agitator rotate make washings along inclined plane when upper and lower moves up, the direction of rotation of itself and agitator is rotated equidirectionally.The movement of the above-below direction of washings is larger, more can reach and cleaning strength raising and drying time shorten, is dried fold minimizing.In addition, due to the agitator of the respective embodiments described above and the sliding action of washings larger, so by small concavo-convex and vanelets is set on surface, inclined plane, also can further improve cleaning strength.
Figure 10 represents from above that as typical example (from blade face one side) see the top view (A) of the agitator of Fig. 2 and Fig. 6 and the height (B) of blade surface and (C).(B) and (C) be illustrated in (A) figure, be respectively the radial location of R1, R2, R3 from the radius of pivot, the height change of all blade surfaces upwards.
(B) situation of the agitator 4 of figure presentation graphs 2, on this agitator 4, inclined plane 4b is plane, if but the height change of the blade surface on Zhou Fangxiang is illustrated to the known highly the highest top (H1, H2, H3) that produced in each radial location.If these tops are partly upwards being connected, can know and form ridge portion, this ridge portion uprises to periphery gradually from pivot.So, even if on the agitator 4 of Fig. 2, except valley portions 4c, also top and ridge portion can be defined.
(C) situation of the agitator 50 of figure presentation graphs 6.In the time being the agitator 50 of Fig. 6, need not illustrate week blade surface height upwards, also can find out easily valley portions 50c, top 50d, the 50e of ridge portion from the surface configuration of agitator.
In a word, can know that by Figure 10 valley portions, top and ridge portion uprise to periphery gradually from pivot.Can learn in addition, in each radial location, with respect to blade surface height H (H1, H2, H3, H4, H5, H6), circumferential lengths (circumferential length) L (L1, L2, L3, L4, L5, L6) on inclined plane becomes respectively greatly, forms little and mild inclined plane, inclination angle.
Figure 11 is the relation between the movement of above-below direction of the angle of inclination that represents qualitatively experimental investigation inclined plane (with respect to the angle of the direction of rotation of agitator) and washings and cloth are wound around.The movement of the above-below direction of washings and the angle of inclination on inclined plane increase pro rata, but can welcome peak value in certain angle, exceed this and reduce on the contrary.Can know thus and have optimum tilt angle.This be because, if angle of inclination is excessive, washings is tilted face and presses, and is difficult to the surface sliding at agitator, move the top that is difficult to inclined plane.
On the other hand, when become or exceed moving up and down of washings start reduce angle of inclination time, cloth be wound around sharply increase.This is because if angle of inclination is excessive, and washings is difficult to the surface sliding at agitator, becomes wad shape in the valley portions on inclined plane, the shape that rolls motion.
According to experiment, in the time being the relative tilt face of Fig. 2 and Fig. 6, angle of inclination is preferably 15~25 °.At this moment, the difference of height on inclined plane becomes 0.13~0.22 times of left and right of stirrer diameter.In addition, in the time being the single inclined plane of Fig. 8, angle of inclination is preferably 15~30 °
According to above-mentioned embodiment, owing to only rotating around rotating shaft merely by agitator, washings one side is slided on agitator, one side moves up at the upper and lower of washing and dewatering bucket, simultaneously, with the direction of rotation of agitator equidirectional rotate, so washings 38 can not become wad shape, washings 38 is difficult to be wound around, twist around.Thus, the fold that can suppress washings 38 produces, and can increase substantially dry finishing.In addition, can prevent from being wound around the generation of the uneven drying causing.
The agitator of above-mentioned patent documentation 2 is on impeller, to arrange in washtub with the tabular surface of impeller rotating shaft oblique, by this tabular surface is rotated around impeller shaft, in water in washtub, produce pulse, agitator surface is inclined plane, the agitator (Fig. 8) of this and above-mentioned embodiment is similar, but because agitator is one jiao of the bottom (diameter of agitator is little) that is configured in washtub, so the movement of above-below direction can not be offered to washings.Certainly, even if the agitator of patent documentation 2 is used on scrubbing-and-drying unit, also can in washtub, there is no water when dry, a washings only part is active, can not make washings dry.
The agitator of patent documentation 3 is disposed in the inner bottom part of washing machine, from the outside perimembranous general radial of central authorities be provided with the blade of multiple one-tenth fan-shapeds, in these blades, other the height of blade of the aspect ratio of at least one blade is high, this high blade possesses Cong You center to roughly 2/3 the position of periphery to the mild rake tilting of outer side Monday downwards simultaneously, and sets the width that the width of the peripheral part at high blade is compared the peripheral part of low blades for 1.5~2 times.
The agitator shape of patent documentation 3 is for blade is periodically contacted with washings, and for reducing the heavy burden of the external peripheral zone that is applied to blade, prevents the shape of the torque increase of motor.The blade that is seen as fan-shaped from top is similar with the agitator (Fig. 6) of above-mentioned embodiment., from laterally, the height of blade is roughly certain from central authorities to peripheral part, different from the present invention that perimembranous uprises outward.In addition, because the extended corner of fan-shaped is less than the present invention significantly, the size of blade is also little, so the circumferential inclination of blade sharply.That is: the occasion of rotating at the agitator of patent documentation 3, the movement of washings is with similar at agitator illustrated in fig. 12, and the movement of the above-below direction of washings does not almost have, and washings is pressed to the direction of rotation of agitator by blade, on agitator, easily become wad shape, Yi Fashengbu is wound around.Therefore,, even if the agitator of patent documentation 3 is used on scrubbing-and-drying unit, also can only obtain the dry finishing same with the agitator of Figure 12 explanation.
About the movement of the washings in washing procedure and clean effect, describe with reference to the ideograph of Figure 14 and Figure 15 as example taking 60 of the agitator of Fig. 6.Figure 14 represents agitator 60 to launch at circumferencial direction, the movement of the above-below direction of the circumferential each locational washings 70 on this agitator 60, and Figure 15 represents to see from top agitator 60, the circumferential movement of the washings 70 on agitator 60.The principle that the movement of each locational washings 70 and cleaning strength occur is as follows.
(1) part (position of (a) in Figure 14) that rise on the circumferential inclined plane of protrusion 74a (50b, 50e)
The rate of rise by protrusion 74a is lifted washings 70a repeatedly from lower, Repeated Compression washings 70a thus produces the cleaning strength of pressing cleaning function.
(2) exceed the part (position of (b) in Figure 14) on the summit of protrusion 74a
The washings 70b being lifted upward by the rate of rise of protrusion 74a upsprings in the position that exceedes protrusion 70a, and this protrusion 74a between produce gap.In addition, at this moment, circumferential speed increases, week upwards between the washings of adjacency (between washings 70a and washings 70b and between washings 70d and washings 70e) produce gap.Enter these gaps from the high washings of detergent concentration of top spray, effectively soak into the inside of washings 70.Thus, even if maintain the state of the water level above that is no more than agitator 60, washings also can spread all over washings 70 entirety.
(3) part declining from the inclined plane of protrusion 74a is to the part (position of (c) Figure 14) of valley portions 74d (50c)
The washings 70c upspringing on protrusion 74a, by drop to the position of valley portions 74d from the descending slope of protrusion 74a, produces by the cleaning strength of compressing and washing and beating the effect of washing.At this moment, also produce conflicting of the adjacent washings 70d slow with circumferential speed, week washings 70 forwards, backwards also produce each other by the cleaning strength of compressing and washing and beating the effect of washing.And then the washings that infiltrate in washings 70 are forced out together with dirt.
(4) direction of the motion of the above-below direction of washings 70 be contrary part (in Figure 14 (b) and (c) between and (c) and (a))
The direction of motion of the washings 70c of the washings 70b upspringing by protrusion 74a and the washings 70c of whereabouts and whereabouts and the washings 70a being lifted is for oppositely, by rubbing and wash rubbing of same motion and wash effect generation cleaning strength with the hand that makes the mutual counter motion washing of washings with two hands.
In addition, in order to bring into play to greatest extent the clean effect of above-mentioned (1)~(4), for the desired size of agitator 60, be preferably the rotary speed of agitator 60 is decided to be to 130~140rpm.In the time that rotary speed is slower than it, likely the movement of washings 70 diminishes, and clean effect may reduce.And in the time that rotary speed is faster than it, likely washings 70 can not be followed moving up and down of agitator 60 surfaces, the movement of this washings 70 diminishes, and clean effect may reduce.
So, what one side made that agitator 60 rotation one side makes that washings that detergent concentration is high loop clean can with considerably less washings simultaneously compound bring into play by compressing and washing, beating and wash, rub and wash this three effects, obtain high cleaning strength.
The motion of the washings 70 that this agitator 60 causes is also suitable for rinsing process.Because washings easily enter the gap that washings is upspring between the washings producing, and permeate in this washings 70, so available same effect extrudes the washings and the detergent ingredients that infiltrate in washings 70, improve rinse efficiency.
In addition, on drying process, be also applicable to.Because warm braw enters the gap that washings is upspring between the washings producing, so warm braw not only can also spread all over the inside of this washings at the outer surface of washings, promote moisture evaporation, improve drying efficiency.And then the motion that cloth is wound around few washings has realized few being dried of fold.

Claims (4)

1. a scrubbing-and-drying unit, it possesses washtub, be located at the rotary body of the bottom of this washtub, in-built above-mentioned washtub and accumulate the outer barrel of washings, the warm braw circulating device that rotarilys actuate the motor of above-mentioned washtub and above-mentioned rotary body and warm braw is blown into above-mentioned washtub inside
Above-mentioned scrubbing-and-drying unit is characterised in that,
On the surface of above-mentioned rotary body, along the inclined plane that is circumferentially with the fluctuating that forms above-below direction,
The rotating center section from above-mentioned rotary body forming by above-mentioned inclined plane is formed in the mode uprising gradually towards above-mentioned top from above-mentioned rotating center section towards the ridge portion at the top of above-mentioned fluctuating,
When dry, above-mentioned rotary body is rotatablely moved and is given clothing by the movement of above-below direction by it, makes above-mentioned rotary body positive and negative rotation simultaneously, in the time that this rotation stops, the clothing of the outer circumferential side that focuses on rotary body is disperseed.
2. scrubbing-and-drying unit according to claim 1, the more than 90% of the internal diameter that the diameter of above-mentioned rotary body is above-mentioned washtub.
3. scrubbing-and-drying unit according to claim 1, the outer circumferential side of above-mentioned rotary body, is circumferentially forming 1 to 3 top.
4. scrubbing-and-drying unit according to claim 1, the outer circumferential side of above-mentioned rotary body, is circumferentially forming 2 tops.
CN201210006274.2A 2003-09-10 2004-09-10 Washing machine and washing-drying machine Expired - Fee Related CN102535099B (en)

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JP4909851B2 (en) * 2007-09-25 2012-04-04 日立アプライアンス株式会社 Washing and drying machine
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