CN1314510A - Washing machine - Google Patents

Washing machine Download PDF

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Publication number
CN1314510A
CN1314510A CN00122234A CN00122234A CN1314510A CN 1314510 A CN1314510 A CN 1314510A CN 00122234 A CN00122234 A CN 00122234A CN 00122234 A CN00122234 A CN 00122234A CN 1314510 A CN1314510 A CN 1314510A
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CN
China
Prior art keywords
water
washing bucket
supply
ion
washing
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Pending
Application number
CN00122234A
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Chinese (zh)
Inventor
小池敏文
大林史郎
太田义注
釜野年恭
小山高见
福沢宗一
桧山功
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Hitachi Ltd
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Hitachi Ltd
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Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of CN1314510A publication Critical patent/CN1314510A/en
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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
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/007Arrangements of water softeners
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/42Treatment of water, waste water, or sewage by ion-exchange
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/02Softening water by precipitation of the hardness
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005Methods for washing, rinsing or spin-drying
    • D06F35/006Methods for washing, rinsing or spin-drying for washing or rinsing only
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08Liquid supply or discharge arrangements
    • D06F39/088Liquid supply arrangements

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The invention uses softened water for both normal water supply and shower rinse supply in a washing machine with a water softening device based on an ion exchange resin. During draining of washing water, an ion removal device 29 is regenerated. During shower rinse, when a washing tub 5 is rotated and a water supply electromagnetic valve 27 is opened, tap water passes through the ion removal device 29 and is softened and flows into a chamber 47. When a water level in the chamber 47 rises, a booster pump 48 is operated. Softened water is pressurized in the booster pump and is ejected to the washing sticking to the wall of the washing tub 5 from a shower head 49, removing a detergent remaining in the washing. After the end of water supply in a final rinsing process, the ion exchange means 29 is regenerated.

Description

Washing machine
The present invention relates to a kind of washing machine reaches by removing the technology of assigning to improve clean result that hardens into of laundry water the inside.
When contain in the water in laundry as the water hardening composition as the divalent calcium ion, can influence the cleaning force of washing agent during the CATION of magnesium ion etc. greatly.The surfactant reaction generates the metallicity soap of non-dissolving in those hardeners and the washing agent, has reduced the surfactant quantity that helps doing washing and has reduced the decontamination ability.
JP A11-151397 discloses the washing machine that cleans by the adverse effect of removing metal cation.In this washing machine, the water supply route of the washing bucket that supplies water be provided with the water stream channel that passes the water demineralizer that cationic ion-exchange resin is housed and with the water stream channel water demineralizer bypass, that directly supply water to washing bucket.In the water supply route, be provided with hardness transducer and sodium sensor, water demineralizer is provided with the automatic regeneration device of ion exchange resin.Regulate the water yield that need soften according to industrial hardness of water, demineralized water flows into washing bucket downwards again injecting the Region Decomposition washing agent of washing agent.And, the time that sodium sensor test ion exchange resin should be regenerated, and regenerate automatically.
On the other hand, known that spray rinsing is the method that a spot of water of a kind of usefulness carries out rinsing.This method is to carry out the centre rinsing after cleaning, and water is sprinkled upon and rotates washing bucket on the clothing simultaneously and remove the washing agent that remains on the clothing effectively then.
Use washing agent during cleaning, hardener influences rinsing equally.In general washing machine, do not consider the influence of hardener substantially to rinsing.Rinsing is that dirt is removed and shifted out from washing bucket from clothing, thereby can not be bonded on the clothing again, and the washing agent that will be absorbed in the clothing is also removed.The surfactant that is absorbed in the washing agent in the clothing is taken away from clothing towards rare by washings.At this moment, when washings are to contain under the situation of hard water of a large amount of hardeners, hardener and surfactant mutually combine and generate metallicity soap.Be difficult to it is removed when under surfactant is absorbed in situation on the clothing, changing into metallicity soap.
Water demineralizer be located at by supply water to washing machine midway the time, the disposal ability of water demineralizer has become a problem.About disposal ability, need to consider output and the whole output of unit interval.Must be in conjunction with the Miniaturization Research disposal ability of the water demineralizer that is installed in the washing machine the inside.Especially, when ion exchange resin is used in the above-mentioned device, because ion exchange resin is removed the limited in one's ability of hardener quantity, the processing of must regenerating must be studied the miniaturization of this device, the frequency of regeneration processing and the output of unit interval like this.
The purpose of this invention is to provide a kind of washing machine that can improve wash effect with low amounts of water.
For reaching this purpose, in the present invention, carry out rinsing and be demineralized water with the spray form and be sprayed at and rotate washing bucket (hereinafter referred to as spray rinsing) on the clothing simultaneously, thereby, the washing agent that remains on the clothing can be removed with a spot of water, to realize using water wisely and high rinsing performance simultaneously.
Describe the present invention in detail below by drawings and Examples, in the accompanying drawing:
Fig. 1 is the perspective view of an automatic washing machine;
Fig. 2 is the profilograph of automatic washing machine of the present invention;
Fig. 3 is the top view of the inside of the present invention's one back tank;
Fig. 4 is the supply water calcspar of route of the present invention;
Fig. 5 is the profilograph of ion interchange unit of the present invention;
Fig. 6 is the calcspar that fully-automatic washing machine circuit of the present invention connects;
Fig. 7 is the plane of the back tank of another automatic washing machine of the present invention;
Fig. 8 is the profilograph of another ion interchange unit of the present invention;
Fig. 9 is the top view of another ion interchange unit of the present invention;
Figure 10 is the top view of the saline flow path of another ion interchange unit of the present invention;
Hereinafter, describe washing machine in one embodiment of the present of invention with reference to the accompanying drawings.
Fig. 1 is the perspective view of the automatic washing machine of one embodiment of the invention, and Fig. 2 is the profilograph along the A-A line.
Automatic washing machine is made by a suspension rod 2 and a vibration isolator 3 and is being hung the outer bucket 4 that synthetic resin is made, and vibration isolator 3 is to be made of helical spring or the elastic caoutchouc established in the shell 1 of making at steel plate.In the outer bucket 4 of water that storage is used to clean, be provided with rotatable and outer barrel 4 cooperate be used to the stainless steel cask 5 (hereinafter referred to as washing bucket) of doing washing and dewatering.Many dewatering hole 5a are arranged on the washing bucket 5, a rotatable rotating vane 6 is installed in the bottom centre of bucket 5.When the step of cleaning and rinsing, washing bucket 5 is static, and rotating vane 6 is with positive direction and opposite spin.In addition, when the step of dehydration, washing bucket 5 and rotating vane 6 resemble an integral body and rotate together.Rotating vane 6 and washing bucket 5 are to be driven by a drive unit.
Drive unit comprises: an engine 7, a conveyer 8 that is used for the rotation of engine is sent to rotating vane 6 and washing bucket 5 that constitutes by belt pulley 8a and belt 8b, one is being cleaned and is only rotating rotating vane 6 during rinse step and the clutch solenoid 9a of clutch apparatus 9, one these conversions of enforcement of rotation washing bucket 5 during in dehydration.Drive unit is fixed on the bottom surface of outer bucket 4 by a gripper shoe 10 of steel plate.
In addition, outer bucket 4 is provided with the level sensor pipe 12 that the hydraulic pressure in will outer bucket is sent to a level sensor 11, also is provided with the drainage arrangement 13 of laundry water in the outer bucket 4 of a discharging.Drainage arrangement 13 is located at the downstream of the water discharge outlet 14 of the outer bucket of next-door neighbour 4 bottom surfaces, is connected with drainage arrangement 13 with a scupper hose 15.Laundry water can be existed in the outer bucket 4 by the draining valve of closing drainage arrangement 13, open this valve and laundry water can be discharged washing machine by scupper hose 15.
One top cover 17 is arranged on the top of shell 1.Top cover 17 is by an inlet 17a, tank 17b, a preceding control box 17c and an ON/OFF lid 18 constitute after one, 17a puts into washing clothes by this inlet, back tank 17b comprises for example water supply electromagnetic valve water pipe jack 26, one ion interchange unit 29, supply-water pump 45 parts such as water supply line such as grade, before control box 1 7c electronic unit as microcomputer and so on is housed, but the lid switch 18 that synthetic resin is made is mounted to and covers inlet 17a.
Upper surface at preceding control box 17c is equipped with an operation panel 19a, and a control circuit 19b is housed under it, and this circuit 19b contains microcomputer etc., is a control section.In addition, in preceding control box 17c, level sensor 11 is housed, is used for judging that by the pressure of surveying water in the outer bucket 4 whether the water of storage is in predetermined water level.A power switch 20 is housed on operation panel 19, various displays 21, various action buttons 22 and buzzer 23 (as shown in Figure 6) or the like, such structure makes the user pass through action button 22 just can operate washing machine, just can confirm operating condition by display 21 and buzzer 23.
Fig. 3 is the top view (along the part of B-B line among Fig. 1) of back tank 17, and the water supply line parts of laundry water are housed in the back tank, and loam cake takes off from the back tank, and Fig. 4 is the calcspar of supply channel.Back tank 17b is equipped with water pipe jack 26, one picks out the flexible pipe that comes and water solenoid valve 27 is arranged then and salt solution supply electromagnetic valve 28 is connected this jack from external water source such as water faucet, ion interchange unit 29 also is housed, oblique water stream channel 46, laundry water flows into washing bucket 5 by this passage, just, this passage becomes the outlet of supplying water of washing bucket 5 the insides of supplying water, and force (forcing) pump 48, spray head 49 or the like also are housed.A chamber 47 that is separated by dividing plate 47a is located at the upstream of oblique water stream channel 46.The top of dividing plate 47a is opened wide, and chamber 47 and oblique water stream channel 46 are interconnected.
Force (forcing) pump shown in the figure 48 be with the situation of laundry water supply pump logotype under.A switch valve A44 is connected the pump mouth 48a of force (forcing) pump 48.Be connected with switch valve A 44 with the drinking-water pipe 44b that pond pump mouth 44a communicates with the bottom of chamber 47, this valve opens or closes these passages.A switch valve B 45 is connected the delivery port 48b of force (forcing) pump 48.Be connected with switch valve B 45 with the outlet pipe 45a that sump tube 45b links to each other with spray head 49, this valve opens or closes these passages.In addition, water injection pipe 48c connects together force (forcing) pump 48 and chamber 47.Water injection pipe 48c is provided with a check valve 48d, and this valve prevents that the water that pours into from flowing through water injection pipe 48c inlet chamber 47 from force (forcing) pump 48.Spray head 49 is located at the below and oblique 46 one-tenth of water stream channels multistage (two-stage) of oblique water stream channel 46, and opening is towards washing bucket 5.Spray head 49 is to be designed to spray form spray water in than the wideer scope of the aperture area of fountain head outlet.
Fig. 5 illustrates the details of the profilograph of ion interchange unit 29.Ion interchange unit 29 comprises a drum container 30, the saline container 31 on the drum container 30, the salt container 32 in the saline container 31.One plastic holding device 33 is located at drum container 30 the insides makes it that space 39a and space 39b once be arranged on one.Upper surface at plastic holding device 33 is provided with loam cake 34, by bonding or be bolted on the plastic holding device 33.
Around the middle part of plastic holding device 33 and on its lower surface, be respectively equipped with granular membrane 33a, forming a resin chamber 33c up and down between the granular membrane.Resin chamber 33c fills sodium type storng-acid cation exchange resin 43 (hereinafter referred to as ion exchange resin) as the ion-exchanger that ion exchanging function is arranged.
Ion exchange resin is a kind of synthetic resin, and ion-exchange group as sulfonic group, connects into the three-dimensional high polymer substrate of well-known bridge joint with chemical method.When the calcium that contains divalence, the water for industrial use of CATION such as magnesium (hardener) flows to cationic ion-exchange resin, sulfonic group, and promptly the CATION of the ion-exchange group of cationic ion-exchange resin and water for industrial use is carried out ion-exchange, as a result, the CATION of water for industrial use has been removed.Particularly, the sodium ion and the CATION in the industry water of ion exchange resin have been exchanged, and hardener has been removed from industry water.
All sodium cations in ion exchange resin are by calcium, and magnesium exchanges, and ion exchange resin loses ion-exchange capacity, must regenerate it like this.Under the situation of sodium type cationic ion-exchange resin, salt solution is used for regeneration of ion-exchange resin.When the brine stream of high concentration absorbs calcium after, the ion exchange resin of magnesium cation, the calcium in the resin, magnesium cation and sodium cation carry out ion-exchange, and ion exchange resin just has been reproduced.Know that it is the most effective that the concentration of the salt solution that is used to regenerate is about about 10%.
Normal capacity is under the situation of the washing machine of the 8Kg water (68L) of filling heap(ed) capacity in the present embodiment, and the quantity of ion exchange resin 43 is set in and can makes industrial hardness of water 100ppm can drop to 40ppm or still less.Definitely, the quantity of resin is 100ml, and the particle diameter of resin is 0.2mm.Ion exchange resin 43 is except with the common widely used pearl shape, even can use fibrous.
In the following space 39b of drum container 30, be provided with water inlet (water source inlet) 30a that links to each other with water supply electromagnetic valve 27.Recycled water water discharge outlet 30c is located at down the bottom surface of space 39b.Be provided with a drainpipe 41 at recycled water water discharge outlet 30c, the other end of drainpipe is linked the water discharge outlet 14 of outer bucket 4.In addition, last space 39b links to each other with the delivery port that is located at drum container 30 (water source outlet) 30b, and delivery port 30b is connected (connection) with chamber 47.
Check valve 35 is located at the top of space 39a.Check valve 35 comprises the valve seat 35b that ball 35a that polypropylene is made and rubber are made.
The top of drum container 30 is provided with a square saline container 31, and there is a lid 40 its upper end.Saline container 31 is in the upper surface sealing, and bottom centre is provided with siphon pipe 37.Establish a hole 37a at siphonal center, the last space 39a of saline container 31 and drum container 30 communicates by the centre bore on the valve seat 35b.
Supply with the side that a water supply pipe 31a that electromagnetic valve 28 draws is located at saline container 31 from salt solution.The salt container 32 of square is detachably to be installed in 31 li of saline container.The upper surface of saline container 32 opens wide, and is provided with granular membrane 32c in bottom and side.The bottom of salt container 32 and side and saline container 31 are across the gap.
The user puts into salt 42 in salt container 32 the insides in advance.As its impurity of purified salt (so-called calcium, mineral compositions such as magnesium) of the low price of using seldom and the most suitable.The granular membrane 32c of salt container 32 prevent that salt particle from flowing out and when putting into salt dried salt drop out from container.The input number of times of salt must be repeatedly renewable, is 500g in the present embodiment.This quantity is exactly to regenerate 33 times for the ion exchange resin 43 regeneration amount 15g once that tell about later.The volume of salt container 32 is made 500ml-550ml, and its inside can hold the dried salt of 500g.
The flexible pipe of drawing from water faucet is connected with water pipe jack 26.Open water supply electromagnetic valve 27 industry water is introduced water inlet 30a, all enter down space 39b, flow into then and rise to the resin chamber 33c that fills ion exchange resin 43 simultaneously.Here industry water is softened, calcium just, and magnesium cation is removed, and industry water all enters space 39a.On last space 39a middle water level rises, ball 35a closely contacts by buoyancy with valve seat 35b and bars up check valve 35.Water flows into chamber 47 from water discharge outlet 30b.Because descending, the pressure on the ion exchange resin 43 equates at the hydraulic pressure of delivery port 30b and atmospheric pressure.Water level surpasses dividing plate 47a in chamber 47, and water flows into oblique water stream channel 47a and flows into washing bucket 5 (outer bucket 4), make-up water so downwards.
Returning to refer again to Fig. 3 is further explained.Deposit at water under the condition of chamber 47, console switch valve A 44 so that drinking-water pipe 44b and pump mouth 48d communicate, console switch valve B 45 so that outlet pipe 45b and delivery port 48b be connected.When force (forcing) pump 48 operations, the water of 47 the insides, chamber is extracted out and pressurization from drinking-water pipe 44b, flows through outlet pipe 45b, from spray head 49 ejections, is sprayed at the spray form above the clothing of washing bucket 5 the insides.Simultaneously, because check valve 48d is closed, water can not flow back to chamber 47 again by water injection pipe 48c.
Ion exchange resin 43 is regenerated as follows: salt solution is supplied with electromagnetic valve 26 and is opened, and water is stored in the saline container 31, so salt is dissolved in from the water the inside that granular membrane 32c flows into and makes salt solution.Therefore the about salt of the water-soluble 15g that terminates an agreement of injection of 130ml generate concentration and be 10% salt solution.Flow into upward space 39a downwards by siphon pipe 37 salt solution, flow through ion exchange resin 43 then its regeneration.The discharge water that contains after the regeneration of a large amount of hardeners flows into space 39b down, passes drainpipe 41 and flows to water discharge outlet 14.
Fig. 6 is with the block diagram of microcomputer 50 as the washing machine control part branch of center construction.Microcomputer 50 links to each other with action button input circuit 51 (51a-51c) and level sensor 11, receives the information signal from the water level in push-botton operation and the wash bucket.The output of microcomputer 50 is connected with the drive circuit 52 that is made of bi-directional triode thyristor etc., gives motor 7, water supply electromagnetic valve 27, and salt solution is supplied with electromagnetic valve 28, and force (forcing) pump 48, drainage arrangement 13 or the like provide commercial power, and control their switch or rotation.And microcomputer also can connect alarm device or the siren that resembles buzzer 23 and display 21 and so on, the operation of reminding user's washing machine to carry out.One power circuit 53 carries out rectification the industrial electro leveling is produced microcomputer 50 necessary dc sources.
Label 22A represents to select an action button of rinse method, and button is used to determine to resemble rinse method and rinsing times such as spray rinsing, gap rinsing, overflow rinsing, whether uses soft water etc.Microcomputer 50 shows on display 21 parameter is set.
A light emitting diode of salt is added in the luminous demonstration of label 55 expressions.Lumination of light emitting diode is very necessary in the time of in salt being added into salt container 32, thereby causes that the user notes.One action button 25 is buttons that press down when the user adds salt.When user's push button 25, microcomputer 50 is lighted light emitting diode 55.
Next, operation according to automatic washing machine of the present invention is described.
About cleaning step, all be the same water supply route even select any cleaning process.In rinse step, according to the selection of rinse cycle, the water supply route is different with the regeneration of ion-exchange resin time.Here, explain the user and implement spray rinsing, implement intermittently rinsing, the operation under the situation that realizes dewatering by selector button at last with soft water.
The user puts into washing bucket 5 with clothing, presses power button 20 then.The user is provided with cleaning process (cleaning being set, rinsing, dehydration conditions) and presses the start button indication and begins to clean.Microcomputer 50 is opened water supply electromagnetic valve 27.Industry water flows into drum container 30 from water faucet by water supply electromagnetic valve 30, passes ion exchange resin 43 and removes hardener, and inlet chamber 47 enters outer bucket 4 (washing buckets 5) by oblique water stream channel 46.
Whether microcomputer 50 fills the predetermined water yield by level sensor 11 test washing buckets 5, and closes water supply electromagnetic valve 27, stops to supply water.Then, clothing is stirred in rotating vane 6 forwards and reverse rotation, thus the beginning cleaning step.Laundry water has changed into has removed calcium, the demineralized water of hardeners such as magnesium.Harden into surfactant in branch and the washing agent and react and generate water-fast metallicity soap, reduced the surfactant that helps cleaning and then reduced the decontamination ability.Yet, owing between delivery period, removed hardener, can give full play to the effect of washing agent, obtain high decontamination ability.
Be at output under the situation of high water level, the most ion-exchange capacity of ion exchange resin 43 (removing the ability of hardener) all loses, for the water of softening supply must be regenerated it.When finishing cleaning step, microcomputer is opened drainage arrangement 13.Laundry water in the washing bucket 5 is drained by scupper hose 15 from water discharge outlet 14.From the cleaning step to the drain step, can think a cleaning step.
Because the essential soft water that uses of next spray rinsing step, reach after must in cleaning step, supplying water before rinsing begins, carry out the regeneration of ion exchange resin 43.Thereby, can when middle dehydration, carry out.In the present embodiment, be that drainage procedure after the cleaning in cleaning step carries out.Regenerative process as mentioned above.
The reason of regenerating in drainage procedure is as follows:
A large amount of hardeners are dissolved in the regeneration discharge water the inside that is used for ion exchange resin 43 regeneration.The regeneration discharge water flows into the water discharge outlet 14 of outer barrel bottom through drainpipe 41.Drainage arrangement cuts out when at cleaning step, and regeneration draining water is to dirty, and softening laundry water and regeneration discharge water mix, thereby improve the laundry hardness of water, supplies water to pass the effect that Di plays and also just lost.On the other hand, when drainage procedure was implemented regeneration, regeneration discharge water and discharge water were together discharged from scupper hose 15, and the draining water of regenerating so can not flow into outer bucket 4 and washing bucket 5.Just, the regeneration discharge water following problem can not take place: make it and contact with clothing, the surfactant of the washing agent that absorbs in conjunction with clothing produces metallicity soap.
When the discharge water that prevents to regenerate when taking measures mixes with laundry water, even when cleaning, carry out the regeneration of ion exchange resin 43, any problem can not take place.For example, if the outlet side of drainpipe 41 is the downstreams that are connected drainage arrangement 13, this is just enough so.In this case, discharge, be located at any one of the upstream side of drainpipe 41, outlet side and the way if prevent the valve of draining from drainpipe 41 because supply with the water of washing bucket, enough equally.
After finishing draining and regeneration of ion-exchange resin, carry out the centre dehydration.In the middle of finishing, after the dehydration, be transformed into rinse step.In rinse step, owing at first adopted spray rinsing, washing bucket 5 rotates.The water that the rotating speed of washing bucket 5 is enough to obtain to be used in the spray-dip rinsing passes the necessary centrifugal force of clothing.Certainly, need not to stop at the rotation of above-mentioned middle dehydration, it is enough keeping its rotation, if perhaps rinsing is to begin under the condition of desired speed at reduction rotating speed after the dehydration, then also is enough.Thereby, the rotation that stops washing bucket 5 fully be can save and the time and the energy of its rotation restarted.And, open water supply electromagnetic valve 27, with the same way as water supply start of the water supply that is used for cleaning step.Because the regeneration of ion exchange resin 43 is finished, hardener is removed by ion interchange unit 29 time, and demineralized water is from delivery port 30b inflow chamber 47 and in being stored in, thereby water level rises.
When water begins to deposit chamber 47 in, switch valve A 44 is transformed into siphon pipe 48a one side, switch valve B45 is transformed into drainpipe 45b one side, the work of beginning force (forcing) pump 48.The demineralized water that the chamber is 47 li enters force (forcing) pump 48 from siphon pipe 48a and pressurizes, and the water after the pressurization is introduced into spray head 49 from drainpipe 48b, and infeeds washing bucket 5 with the spray form.Simultaneously, the clothing of washing bucket 5 the insides quilt centrifugal force is pressed onto on the wall surface of washing bucket 5, and most of clothing is not the center of being placed on.Thereby spray is set as the wall surface that the spray direction is pointed to washing bucket.And because force (forcing) pump 48 feedwater adds overvoltage, water is because pressure is forced to penetrate from spray head 49, and washings also one arrive the washing bucket bottom surely and go up clothing away from spray head.
And, shape with respect to the water inlet zone of spray head 49 has a kind of total form that is provided with many apertures, i.e. ray shape (taper shape) injection water that forms with vortex current etc., yet, if hydrologic(al) budget to be sprayed on the clothings that closely contact with washing bucket 5 just enough.
Washings on clothing pass clothing, enter outer bucket 4 with the washing agent of the inside by the dewatering hole 5a on the wall surface of washing bucket 5, discharge from water discharge outlet 14.
Impinge upon the bounce-back minimum that makes water on the clothing owing to work as water, the water velocity of spray rinsing is preferably about 4-10 l/min.On the contrary, the flow velocity of the supply water by ion interchange unit 29 depends on the hydraulic pressure of water pipe, is about 5-20 l/min, when the flow velocity of the flow velocity of supplying with water greater than spray rinsing water, the water that the chamber is 47 li flows through dividing plate 47a, enters washing bucket by oblique water stream channel 46, consumes to no benefit demineralized water.Yet, by switch water supply electromagnetic valve 27 off and on, might slow down significantly and supply with the flow velocity of water, reduce the quantity that demineralized water is bootlessly used up.On the other hand, at the flow velocity of the velocity ratio spray rinsing water of supplying with water hour, the water level that the chamber is 47 li is low, and force (forcing) pump 48 absorbs air, and general pump performance just can't reach, and in this case, can keep pump performance by intermittently operated force (forcing) pump 48.Carrying out rinsing is the washing agent that is absorbed on the clothing in order to remove.Yet, when the rinsing hardness of water is high, is absorbed in surfactant on the clothing and hardener and mutually combines and generate metallicity soap (hydrophobic group that surfactant and hardener combine).Metallicity soap is hydrophobic, non-dissolved substances, stays on the clothing owing to it is water insoluble.On the contrary, carry out rinsing with demineralized water, can not produce any metallicity soap, surfactant can be removed from clothing effectively.
But the demineralized water by ion interchange unit 29 is owing to lose pressure by ion exchange resin 43, so equate substantially with atmospheric pressure at the pressure at delivery port 30b place.Thereby demineralized water flows into downwards the washing bucket 5 of rotation from oblique water stream channel 46, and only the energy corresponding to height can use.So, be difficult to flowing of control water at falling direction, in spray Cleaning for High Capacity, also be difficult to be sprinkled upon on the clothing with allowing hydrologic(al) budget, a large amount of water is not sprinkled upon on the clothing and is invalidly drained, and efficient also is low.
As the present invention force (forcing) pump 8 is set, spray rinsing can be effectively and the demineralized water that balancedly will be used to remove washing agent be sprinkled upon clothing, can realize using water wisely simultaneously, improve wash effect.
The use of force (forcing) pump 48 also has following benefit.Just, be used under the situation of spray rinsing at the pressure of industry water, the output of shower water changes the pressure that depends on industry water greatly.Particularly, the place spray low at hydraulic pressure is not to be forced to shoot out, and will exist water to spill less than the problem on the clothing.On the contrary, use force (forcing) pump can guarantee and the industry water pressure independent, constant hydraulic pressure.So can realize identical spray, obtain constant spray effect.
After finishing spray rinsing, carry out the rinsing at intermittence, water is stored in the washing bucket 5, and clothing is by rotating vane 6 rotations.Because route that water flows into and the route when cleaning are identical, therefore save the supply route of explaining water source in the rinsing at intermittence.The quantity that is used for the demineralized water of spray rinsing in previous step is 15 liters to the maximum, and the ion-exchange capacity of ion exchange resin 43 is still enough, and the water of rinsing can be softened.Thereby the possibility that the hardener in the surfactant bound water of the washing agent that is not removed in the spray rinsing produces metallicity soap diminishes.Therefore, make the surfactant that stays on the clothing tail off like this.
In addition, when above-mentioned intermittence rinsing, can operate force (forcing) pump 48 and be used in combination spray rinsing.Clothing is in the state of dehydrated suction on washing bucket 5 after finishing spray rinsing.After the water supply of finishing intermittently rinsing, even rotating vane 6 forward and reverse rotations, laundry amounts on rotating vane is few, and the power of blade can not act on the clothing effectively, suction can not exist clothing can not be stirred the problem of (rinsing performance is low) efficiently under top branch at the clothing on the washing bucket 5 like this.Therefore, be used in combination spray and supply water when supplying water, clothing contains big water gaging weight and becomes heavier, makes clothing owing to the weight of self separates from washing bucket 5.In case the rotation of rotating vane 6 both forward and reverse directions, clothing is stirred immediately, and has improved rinsing performance.
When finishing intermittently rinsing and begin draining, ion exchange resin 43 is reproduced, and makes that rinse water is softening to be used for cleaning next time.Renovation process is the same with the regeneration after the cleaning above-mentioned.
After the draining of finishing ion exchange resin and regeneration, carry out last dehydration, and then finish to clean.
In the above-described embodiment, the structure of chamber 47 is designed to store the demineralized water that passes through ion interchange unit 29, yet, also can obtain same operating effect by following structure.Just, siphon pipe 48a replaces chamber 47 to be directly connected to the last space 39a of ion interchange unit.In this case, delivery port 30b preferably is positioned at the upper end, top of drum container 30, and upward the volume of space 39a is tried one's best big.This is because the possibility that force (forcing) pump 48 absorbs air has been suppressed as much as possible by the water in the last space.Under this structure situation, can whether work the water supply of switch spray head 49 and the water supply of oblique flow aquaporin 46 according to force (forcing) pump 48.
Structure by this way, even back tank 17b is little and be difficult to be provided with chamber 47 in having the small size washing machine, also available soft water carries out spray rinsing.
More than, told about the situation of using force (forcing) pump and shower water suction pump of uniting.Establish such structure in the washing machine of not establishing the shower water suction pump, take off switch valve A 44 and switch valve B 45 from the foregoing description, suction hose 44b is connected to water sucking mouth 48a, drainpipe 45b is connected to water discharge outlet 48b.
And, can divide be arranged force (forcing) pump and shower water suction pump.For force (forcing) pump, when pressurization, need best performance, the shower water suction pump is needed the performance of big flow.Thereby, the pump type that pump separately can be selected suitable separately performance respectively is set.
When shower water was used as rinse water, switch valve A 44 was located at shower water water sucking mouth 44a one side, and switch valve B45 is located at spray header 45a one side.At first, open water supply electromagnetic valve 27 and will inject chamber 47 by ion interchange unit 29 from the water of water pipe jack 26.The speed energy part water that use sprays into the water of chamber 47 enters force (forcing) pump 48 and makes the pump starting for the force (forcing) pump water filling by water injection pipe 48c.Then, force (forcing) pump enters oblique water stream channel 46 from spray header 45a again from spray pump mouth 44a suction shower water, and water is supplied with washing bucket 5.Make pipe-line system and make the water chamber 47 of not flowing through, and from shower 45a water is entered oblique water stream channel 46, this dust etc. that has prevented the shower water the inside is stored in the chamber 47.
As under the situation of rinse water, the water yield that is used to pour into of the ion exchange resin 43 of flowing through is about the 5-10 liter at shower water, and it is enough that the ion-exchange capacity of ion exchange resin 43 keeps.Thereby, needn't regenerating ion exchange resin 43 when the draining rinse water.
And, even when industry water is used as rinse water, if will not change into demineralized water by washings, needn't regenerating ion exchange resin 43 when the draining rinse water.
Next, be explained with reference to the drawings an alternative embodiment of the invention.
The characteristics of present embodiment are that an ion interchange unit that is specifically designed to the spray water source substitutes the force (forcing) pump that is used to spray the water source, and the pressure of water pipe is used for spray.
Fig. 7 is the top view (part shown in Figure 1B-B line) that the loam cake of tank 17b behind the parts of the automatic washing machine water supply route that present embodiment is housed is removed the back rear side, has saved the saline container and the salt container of ion interchange unit 29 '.Fig. 8 is the profilograph of ion interchange unit 29 '.Fig. 9 is the top view of the ion interchange unit 29 ' of looking from the A-A double dotted line of Fig. 8; Figure 10 is the top view of the saline flow path 72 of looking from the B-B double dotted line of Fig. 8; With the identical parts of identical symbolic representation among Fig. 3 and Fig. 5.
At back tank 17b water pipe jack 26, water supply electromagnetic valve, water supply electromagnetic valve B 60, salt supply electromagnetic valve 28, ion interchange unit 29 ', spray head 49, water channel 78, oblique water stream channel 78 or the like are housed in proper order.
Ion interchange unit 29 ' comprises drum container 61, saline container 31, is contained in the salt container 32 in the saline container 31.The embodiment's of saline container 31 and salt container 32 and Fig. 5 is the same.In drum container 61 the insides plastic holding device 62 is housed.Upper surface at plastic holding device 62 has a loam cake 63.Plastic holding device 62 and loam cake 63 usefulness, one fixtures 64 (present embodiment bolting) are fixed on drum container 61.Plastic holding device 62 is divided into two chambers, resin chamber A 66, resin chamber B 68, and granular membrane 62a, 69a are located at upper and lower surface respectively.Ion exchange resin 43a and 43b are equipped with in the resin chamber.Resin chamber A is used for general water supply, and resin chamber B is used for for shower water, and the resin chamber A volume that a large amount of water passes through is bigger.
In normal capacity is that the amount of ion exchange resin 43a is 100ml in the amount of ion exchange resin under the situation of the washing machine of the 8Kg water (68L) of filling heap(ed) capacity, and the amount of ion exchange resin 43b is 30ml (particle diameter of resin is 0.2mm).So when industrial hardness of water was 100ppm, the speed that water is supplied with was 15 l/min, up to reaching maximum, hardness of water can drop to 40ppm or still less with common water supply.In addition, when the speed of supplying with at shower water was 5 l/min, hardness of water can drop to 20ppm or the amount still less the time.
To drum container 61, following space A 70a is located at A 66 belows, resin chamber, and following space B 71a is located at the below of resin chamber B 68.Following space A 70a is provided with water inlet (water source inlet) A 61a and recycled water water discharge outlet A 61e, and following space B 71a is provided with water inlet (water source inlet) B 61b and recycled water water discharge outlet B 61f.The recycled water water discharge outlet is separately installed with drainpipe 41a, 41b, and the other end of drainpipe is connected with the water discharge outlet 14 of outer bucket 4 bottoms.
In addition,, above resin chamber A 66, be provided with space A 70b, above resin chamber B 68, be provided with space B 71b for loam cake 63.Last space A 70b is provided with feed water inlet A 61c (water source inlet), and last space B 71b is provided with feed water inlet B 61d (outlet of supplying water).Feed water inlet A 61c is connected with supply water channel 78, and feed water inlet B 61d is connected with spray head 49.
Between loam cake 63 and fixture 64, form brine stream passage 72 by a wall 72a.Saline container 31 is installed on the loam cake 63, and saline container and brine stream passage 72 are connected by the hole 37a of siphon pipe 37.Check valve A 65 is located at the top of space A 70b, and check valve B 67 is located at the top of space B 71b.Each check valve 65,67 is provided with hole 65a at the center, 67a and brine stream passage 72 are connected.
Next, explain the operation of present embodiment automatic washing machine.Cleaning process is to clean, spray rinsing, and intermittently rinsing, dehydration, this is the same with first embodiment.Here explain the current journey when supplying water.
When water supply is cleaned, the current journey is as follows: the industry water from water pipe jack 26 flows to down space A 70a by water supply electromagnetic valve 27 and water inlet A 61a, the resin chamber A that fills ion exchange resin 43a of flowing through then removes hardener and changes into demineralized water and enter space A70b, flows into water channel 78 from catchment 61c again.In addition, water flows to cleaning agent spraying container 79 downwards from the many aperture 78a on the water channel and deposits washing bucket 5 in by oblique water stream channel 80 again.When the water yield reaches maximum, the ability of removing hardener of nearly all ion exchange resin 43a all loses, for following softening water supply must be regenerated it.
When pool water within was used as rinse water, Chi Shui was sucked out by the flexible pipe that is connected pond bilge suction 75a.At first, open water supply electromagnetic valve 27, industry water is injected water channel 78 through ion interchange unit 29 '.The speed energy of the water of water channel 78 is injected in utilization, and water is incorporated into inlet 75c from ascending pipe 76, gives pond water suction pump 75 priming petocks.Then, open shower water suction pump 75 and put into oblique water stream channel 80 through water discharge outlet 75c, fill Chi Shui for washing bucket 5 from shower water water sucking mouth 75a absorption water.
Next, the current journey is as follows when carrying out spray rinsing: industry water flows through supplies with electromagnetic valve B 60, enters down space B 71a from water inlet B 61b.Its hardener is removed and changes into demineralized water and flows to space B 71b when flowing through resin chamber B.Industry water is introduced spray heads 49 from delivery port b through pipe 73, and is injected on the clothing in the washing bucket 5.Spray head 49 is arranged to flow velocity and is about 5l/min.When water flows through resin chamber B68, owing to the flow resistance of ion exchange resin has the pressure loss.But because the flow resistance of the resistance ratios ion exchange resin of spray head part is big, hydraulic pressure is only smaller than the pressure of the water pipe of water outlet B 61d, can not become any obstruction that spray sprays.Yet, because the pressure of last space B 71b equates that with the pressure of water pipe the part that shower water flows through need be made the structure of waterproof substantially.But the part compression face of spray is little, is easily so make compression-resistant structure.
The process of spray rinsing is identical with a last embodiment.
When finishing that last intermittence, rinsing began draining, ion exchange resin is regenerated for cleaning next time.The salt solution manufacture method that is used to regenerate is identical with a last embodiment,, explains the flow process of salt solution here.
Salt solution flows to salt solution water stream channel 72 under it by the siphon pipe 37 hole 37a that flows through.In addition, the direction of the arrow indication of salt solution such as Figure 10 is from hole 67a, and 65a enters space 70b, 71b through resin chamber 66,68.When brine stream is crossed the resin chamber, ion exchange resin 43a, 43b is regeneration just.The recycled water that contains a large amount of hardeners enters down space 70a, 71a, and by drainpipe 41a, 41b enters delivery port 14, together discharges washing machine with the draining of rinsing then.
In addition, carry out with demineralized water under the situation of last rinsing at intermittence, must be before supplying water regenerating ion exchange resin to it.Although the method for in the process of draining, regenerating with on an embodiment the same, the brine stream of supply that is used for shower water in ion exchange resin 43B one side is still of no use, like this, salt solution becomes useless.Thereby, in the spray water supply process, carry out the regeneration of ion exchange resin 43a.In the spray water supply process, check valve B67 is closing, and check valve 65 is being opened.At this moment, salt solution flows to salt solution water stream channel 72, the salt solution hole 65a that only flows through, and only ion exchange resin 53a is reproduced.If only ion exchange resin 43a regeneration is just enough, the amount that the amount of salt solution is all regenerated than two ion exchange resin is lacked.Therefore, might suppress the consumption of useless salt.
In addition, for above-mentioned reasons, when carrying out spray rinsing, water supply electromagnetic valve 27 and water supply electromagnetic valve B69 may be opened to oblique water stream channel 80 and spray head 49 simultaneously and supply water simultaneously.Thereby clothing adheres to that to become the reason that is easy to break away from the wall surface of washing bucket 5 the same with a last embodiment.
In addition, when spray rinsing, open drainage arrangement 13 so as the regeneration discharge water not with just in the contact with clothing of rinsing.
The diameter of hole 65a is bigger to reach the quality of ion exchange resin than hole 67a's.This is because the amount of the essential salt solution of regenerating is directly proportional with the amount of ion exchange resin.In the present embodiment, ion exchange resin 43a, the amount of 43b is respectively 100ml, 30ml, the diameter ratio of hole 65a and hole 67a is 10: 3.
And it is not enough that the shape of salt solution water stream channel 72 is made the draining when keeping air of such reason and salt solution does not correctly distribute.When salt solution flow to salt solution passage 72, this passage 72 had been full of salt solution, and salt solution is from hole 65a, and 67a is to dirty.Yet, air not never the salt solution water stream channel of wall 72a release well, in the salt solution water stream channel, can form a dacker district.Therefore, that the distribution of salt solution becomes is incorrect, and (the downward salt solution quantity of flowing through away from the hole 76a of hole 37a diminishes, and ion exchange resin 43b is not enough to be reproduced.
Resemble in the present embodiment and establish a wall 72a at salt solution water stream channel 72, salt solution arrow as shown in figure 10 flows, and is pressed into air simultaneously in the salt solution water stream channel.Air extrudes from hole 65a.In this manner, because the air in the salt solution water stream channel becomes zero, salt solution can correctly distribute, and may prevent that ion exchange resin regeneration is insufficient.
At present embodiment, be provided with the ion exchange resin that is used for the ion exchange resin that supplies water usually and is used to spray water supply, such advantage is to use special water memory block (chamber), force (forcing) pump and switch valve can realize the demineralized water spray rinsing, and the water supply route can gather in tight schedule.And, if in the final stage of cleaning with ion exchange resin regeneration, make scavenging period shorten.
Industry water flow through ion interchange unit (water demineralizer) afterwards since when it flows through water-softening plant in the pressure loss in ion exchange resin district, the pressure and the atmospheric pressure of industry water are basic identical.Flow through the water of Di because its weight flows into following washing bucket downwards.Usually, because middle dehydration is to remove washing agent before rinsing as much as possible, clothing is inhaled on the wall surface of washing bucket.Spent ion exchange resin softened when being used for the water of rinsing when attempting to make, because water only falls, was difficult to the falling direction of control water.Thereby many water are directly fallen the bottom surface of washing bucket and are not dropped on the clothing, the result, and water is invalidly consumed.And, be difficult to the balanced water that makes and drop on the clothing, can't improve wash effect.
As what explain above, in each the above embodiments, because the outlet at ion interchange unit is provided with the force (forcing) pump that is used for spray rinsing, or be provided with the ion interchange unit that is used for spray rinsing, demineralized water can balancedly be sprinkled upon on the clothing and need not waste water, therefore demineralized water is all used in spray rinsing and cleaning, can realize conserve water simultaneously and improve wash effect (reducing the washing agent (surfactant) on clothing).In addition,, can keep reducing the effect of the frequency of ion exchange resin regeneration, perhaps owing to reduce the amount of ion exchange resin and the volume of ion interchange unit can be reduced if when rinsing, save the water yield.
According to the present invention, demineralized water is sprayed at the spray form and carries out rinsing on the clothing and rotate washing bucket simultaneously, thereby, realize the rinsing of high efficiency and water-saving.

Claims (9)

1. washing machine that is used to clean, the water of use are to remove the hardener that anhydrate by the water demineralizer that water source externally is provided with to the water supply route of washing bucket midway the water after softening is used for cleaning with it, wherein:
Described washing machine comprises a nozzle, except the water from the feed water inlet of described water supply route infeeds the described washing bucket, this nozzle is used to supply water when rinsing and will be sprayed at from the water of described external water source in the described washing bucket simultaneously, also comprises the water demineralizer that is used to remove the water hardening composition that is located at described nozzle upstream.
2. according to the washing machine of claim 1, it is characterized in that: the water demineralizer that the water demineralizer of the provided upstream of described nozzle and described supply water out are established constitutes a water demineralizer.
3. washing machine, comprise: a washing bucket that cleans, the water supply that in described washing bucket, is used to supply water, the drainage arrangement that in described washing bucket, is used for draining, the water supply route that is located at described water supply installation being used for midway removed the ion interchange unit of the ion of described water, it is characterized in that:
Described washing machine comprises:
Water memory block in the outlet of described ion interchange unit;
Be used to extract at the water of described memory block and a pressue device of pressurization;
Be used for water is sprayed a spray spout of into described washing bucket the inside;
Give first water channel of described washing bucket water supply from described water memory block without described pressue device;
Second water channel of supplying water for described washing bucket through described spray spout from described water memory block;
Control a control device of the water supply of the water supply of described first water channel and described second water channel;
When being controlled at rinsing, described control device supplies water by described second water channel.
4. according to the washing machine of claim 3, it is characterized in that: come from described first water channel at the water source of cleaning step and rinse step, wherein the water used of rinse step is the water that exists in the washing bucket; Supplying water described washing bucket and rotating under the situation of described washing bucket, the water that carries out rinsing is by the described second water channel supply.
5. according to the washing machine of claim 3, it is characterized in that: the water supply of using the water that exists in the described washing bucket to carry out rinsing is flow through first water channel and second water channel.
6. according to the washing machine of claim 3, it is characterized in that: described pressue device uses together in conjunction with the pond water supply, be used for switch and be located at the suction side of described force (forcing) pump, be used for switch is located at force (forcing) pump to the water stream channel of spray spout and the second switch valve of Chi Shui being supplied with the water stream channel of described washing bucket drain-side from the water stream channel of Chi Shui with from first switch valve of the water stream channel of described water memory block.
7. according to the washing machine of claim 1 or 3, it is characterized in that: be provided with a control device that is used to control cleaning, rinsing and each step of dewatering,
Described control device carries out dehydration before the rinse step in order to be controlled at, and carries out rinsing and keeps described washing bucket rotation simultaneously and do not stop the rotation in dehydration by beginning to supply water from described spray nozzle.
8. according to the washing machine of claim 3, it is characterized in that: be provided with a control device that is used to control cleaning, rinsing and each step of dewatering,
Described ion interchange unit is provided with ion-exchanger and by regenerative agent being flowed into the regenerating treater that ion-exchanger is regenerated and handled,
When described control device is finished after the described cleaning step water in the described washing bucket of draining in order to be controlled at the described regenerative agent described regeneration of ion-exchange resin step of regenerating, step by supplying water for described washing bucket from described second water stream channel after rotating described washing bucket and carrying out dehydration and finish described dehydration after finishing described draining and described regeneration step.
9. a washing machine comprises: a washing bucket that cleans, the water supply that in described washing bucket, is used to supply water, the drainage arrangement that in described washing bucket, is used for draining, the water supply route that is located at described water supply installation being used for midway removed the ion interchange unit of the ion of described water, spray spout towards described washing bucket opening is characterized in that:
Described ion interchange unit comprises plastic holding device and the regenerative agent container that ion-exchanger is housed, and the regenerative agent container is equipped with the regenerative agent of the ion-exchange capacity of regenerant ions interchanger,
Described plastic holding device is made up of first and second containers,
Described first container is provided with first water inlet, first delivery port, and the inflow entrance of regenerative agent and the outlet of regenerative agent,
Described second container is provided with second water inlet, second delivery port, and the inflow entrance of regenerative agent and the outlet of regenerative agent,
Described first water inlet is provided with supply valve, described second water inlet is provided with second feed water valve, be provided with first water channel of giving described washing bucket water supply from described first delivery port without described spray spout and second water channel of giving described washing bucket water supply from described second delivery port through described spray spout
Supply water by described first water channel when in cleaning step, supplying water, in rinse step, rotate described washing bucket simultaneously by described second water channel water supply.
CN00122234A 2000-03-17 2000-07-31 Washing machine Pending CN1314510A (en)

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JP2001259291A (en) 2001-09-25

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