JP4013380B2 - Washing machine - Google Patents

Washing machine Download PDF

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Publication number
JP4013380B2
JP4013380B2 JP00057299A JP57299A JP4013380B2 JP 4013380 B2 JP4013380 B2 JP 4013380B2 JP 00057299 A JP00057299 A JP 00057299A JP 57299 A JP57299 A JP 57299A JP 4013380 B2 JP4013380 B2 JP 4013380B2
Authority
JP
Japan
Prior art keywords
detergent
washing
water
guide cover
tub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP00057299A
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Japanese (ja)
Other versions
JP2000197795A (en
Inventor
正光 三原
文夫 太田
正 犬塚
Original Assignee
松下電器産業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 松下電器産業株式会社 filed Critical 松下電器産業株式会社
Priority to JP00057299A priority Critical patent/JP4013380B2/en
Publication of JP2000197795A publication Critical patent/JP2000197795A/en
Application granted granted Critical
Publication of JP4013380B2 publication Critical patent/JP4013380B2/en
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

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Classifications

    • 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 in so far as such details are not special to washing machines of groups D06F21/00 - D06F25/00 or to any particular type of washing machine defined in groups D06F9/00 - D06F19/00 or D06F27/00
    • D06F39/02Devices for adding soap or other washing agents
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details of washing machines of kinds covered by groups D06F21/00 - D06F25/00, restricted to machines of these kinds
    • D06F37/26Casings; Tubs
    • D06F37/264Tubs provided with reinforcing structures, e.g. ribs, inserts, braces
    • 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 in so far as such details are not special to washing machines of groups D06F21/00 - D06F25/00 or to any particular type of washing machine defined in groups D06F9/00 - D06F19/00 or D06F27/00
    • D06F39/08Liquid supply or discharge arrangements
    • D06F39/088Liquid supply arrangements

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing machine that performs washing with laundry and detergent.
[0002]
[Prior art]
Conventionally, this type of washing machine is configured as shown in FIG. Hereinafter, the configuration will be described.
[0003]
As shown in the figure, the receiving tub 1 rotatably includes a washing and dehydrating tub 3 in which a pulsator 2 is rotatably disposed at the bottom, and is suspended from a washing machine outer frame 5 by a suspension bar 4. A back blade 2 a is integrally formed on the back surface of the pulsator 2, and a pump chamber 6 is formed on the outer periphery of the back blade 2 a so as to cover the back blade 2 a and communicates with a plurality of water supply channels 7.
[0004]
A plurality of water spouts 8 that open toward the inside of the washing and dewatering tub 3 are provided in the upper part of the plurality of water feeding paths 7, and the washing water that has risen through the water passage 7 is sprinkled inside the washing and dewatering tub 3. It is configured to be. The motor 9 drives the pulsator 2 or the washing and dewatering tub 3 via the V belt 10 and the speed reduction mechanism / clutch 11. The drain valve 12 drains the washing water in the washing / dehydration tank 3, and the water supply valve 13 supplies water to the washing / dehydration tank 3. The washing / dehydrating tub 3 is provided with a fluid balancer 14 for reducing vibration during dehydration, and a lid 15 is disposed on the upper portion of the washing / dehydrating tub 3 so as to be freely opened and closed.
[0005]
The control device 16 controls the motor 9, the drain valve 12, the water supply valve 13, and the like to sequentially control each process of washing, rinsing, and dehydration.
[0006]
The operation in the above configuration will be described. When laundry is started after the laundry and dewatering tub 3 are put in, the control device 16 controls the water supply valve 13 to supply a predetermined amount of water in the washing and dewatering tub 3. After the water is supplied, the control device 16 controls the motor 9 to rotate the pulsator 2.
[0007]
The laundry and water in the washing and dewatering tub 3 are stirred by the rotation of the pulsator 2, and the stirring gradually dissolves the detergent into washing water, which acts on the dirt of the laundry. Further, when the pulsator 2 is rotated, the back blade 2a of the pulsator 2 is rotated so that the washing water is supplied from the pump chamber 6 to the water supply channel 7, and the washing and dewatering tank is provided from the water spout 8 provided in the upper part of the water supply channel 7. Washing water is sprinkled toward the inside of 3. Washing can be performed while washing water is circulated by watering from the water spout 8.
[0008]
[Problems to be solved by the invention]
However, in such a conventional configuration, if the circulation amount of the washing water is increased in order to increase the solubility of the detergent and enhance the dirt removal performance of the laundry, the rotation ratio of the pulsator 2 is increased during the washing time. This leads to an increased rate of stirring the laundry at the same time. When the ratio of stirring the laundry is increased, the friction between the laundry and the friction between the laundry and the surface of the pulsator 2 are increased, which causes a problem of damaging the laundry. .
[0009]
SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and aims to increase the detergent solubility at the start of washing, improve the washing performance, reduce washing unevenness, and further reduce the washing time without damaging the laundry. It is said.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is configured so that a washing and dewatering tub for storing laundry is rotatably accommodated in a receiving tub, and the washing and dewatering tub is rotationally driven by a driving means. The detergent is directly put between the container and the receiving tub, and the washing / dehydrating tub is rotated to dissolve the detergent.
[0011]
As a result, the rotation of the washing / dehydrating tub from the start of washing can increase the solubility of the detergent by the stirring action between the outside of the washing / dehydrating tub and the receiving tub, and washing performance without damaging the laundry Can be improved, and washing unevenness can be reduced, and the washing time can be further shortened.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention includes a washing and dewatering tub for storing laundry, a receiving tub for rotatably storing the washing and dewatering tub, and a driving means for rotationally driving the washing and dewatering tub. An annular balancer that forms an upper part of the washing and dewatering tank and corrects imbalance during rotation; and a water supply valve that supplies water to the washing and dehydrating tank, and a detergent inlet at the lower part of the balancer The detergent inlet is guided to the detergent inlet by placing the detergent on the upper surface in the open state and closing the detergent, and the washing / dehydrating tub and the receiving tub from the detergent inlet provided a guide cover to direct introduced between the opened and closed, the detergent passage portion is formed by the guide cover and the guide cover by closed and the balancer, above the detergent passageway portion A water inlet is provided for water supply There are, which water from the washing and dewatering tank by rotating Rutotomoni the water supply valve is configured to flow from the water injection receptacle inside the detergent passage, the washing and dewatering tank from the washing start By rotating, the solubility of the detergent can be increased by the stirring action between the outside of the washing and dewatering tank and the receiving tank, the washing performance can be improved without damaging the laundry, and washing unevenness can be reduced, Furthermore, the washing time can be shortened. Also , by opening the guide cover, placing the detergent on the guide cover, and closing the guide cover, the detergent can be put in between the washing and dehydrating tub and the receiving tub, and the operation of putting in the detergent is easy. Cleanability and maintenance can be improved. In addition , when water is supplied, water can flow into the detergent passage from the water inlet and when the detergent is introduced between the washing / dehydrating tub and the receiving tub by closing the guide cover, the detergent remains on the guide cover. Even if it can be poured out, it is possible to prevent residual detergent in the detergent passage.
[0013]
According to a second aspect of the present invention, in the first aspect of the present invention, the water injection receiving port comprises a plurality of water injection holes, and the water injection receiver is provided on a ridge wall of the water injection hole on the reverse rotation direction side of the washing and dewatering tub. Even if the water supply amount is low when water is supplied while rotating the washing and dewatering tub, the ribs are provided so that the water supply can effectively flow into the detergent passage by the water injection receiving rib. Even if the detergent remains, it can be washed out, and residual detergent in the detergent passage can be prevented.
[0014]
According to a third aspect of the present invention, in the first aspect of the present invention, when the openable / closable guide cover for guiding and introducing the detergent is opened, the front end surface of the guide cover on the side of the detergent inlet and the detergent inlet The detergent inlet is always closed by the tip of the guide cover on the detergent inlet side when the guide cover is opened. Can be prevented in advance.
[0015]
According to a fourth aspect of the present invention, in the first aspect of the present invention, the pocket-shaped wall protruding upward is provided at the lower portion of the detergent charging port , and the removable guide cover for guiding and guiding the detergent charging is removed. in, which washing water from inside the washing濯兼dehydrating tub is not configured to flow into the detergent inlet, at the time of such forgotten guide cover mounting, it is prevented foreign matter from the detergent input opening it can.
[0016]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0017]
Example 1
As shown in FIG. 1, the receiving tub 17 includes a washing / dehydrating tub 19 having a pulsator 18 rotatably disposed at the bottom thereof, and is suspended from a washing machine outer frame 21 by a suspension bar 20. . The motor (driving means) 22 rotationally drives the washing / dehydrating tub 19 via the V belt 23 and the speed reduction mechanism 24. The water supply valve 25 supplies water into the washing / dehydrating tub 19, the water level detecting means 26 detects the water level in the receiving tub 17, and the drain valve 27 is the washing water in the water receiving tub 17. It drains water.
[0018]
The detergent passage portion 28 is configured so that the detergent can be directly introduced between the washing and dewatering tub 19 and the receiving tub 17 from the lower portion of the annular balancer 29 that reduces vibration during dehydration.
[0019]
The control device 30 controls the motor 22, the water supply valve 25, the drain valve 27, and the like to sequentially control each process of washing, rinsing, and dewatering, and after the start of operation, rotates the washing and dewatering tub 19 during water supply, The detergent put between the washing / dehydrating tub 19 and the receiving tub 17 is dissolved by the stirring action between the outside of the washing / dehydrating tub 19 and the receiving tub 17.
[0020]
The operation in the above configuration will be described. The laundry is put into the washing / dehydrating tub 19, and the synthetic powder detergent (or liquid detergent) is put between the washing / dehydrating tub 19 and the receiving tub 17 through the detergent passage 28. Start driving.
[0021]
When the operation is started, the water supply valve 25 is operated by the control device 30 and water is supplied into the washing and dewatering tub 19 as shown by an arrow A in FIG. At the same time, the washing and dewatering tank 19 starts rotating, and the detergent is dissolved by the stirring action between the outside of the washing and dewatering tank 19 and the receiving tank 17 while supplying water. When a predetermined water level is detected by the water level detection means 26, a signal is sent to the control device 30, and the water supply valve 25 stops operating. Thereafter, the motor 22 is operated by the controller 30, starts the washing operation by rotating a pulsator over 18.
[0022]
Accordingly, the detergent is forcibly dissolved by the stirring between the outside of the washing / dehydrating tub 19 and the receiving tub 17 by the rotation of the washing / dehydrating tub 19 simultaneously with the water supply from the start of operation. The solubility of the detergent can be increased, the washing performance can be improved without damaging the laundry, the washing unevenness can be reduced, and the washing time can be further shortened.
[0023]
(Example 2)
As shown in FIG. 2 and FIG. 3, the annular balancer 29a constitutes the upper part of the washing and dewatering tub 19a and corrects the imbalance during rotation. A detergent inlet 31 is provided at the lower part of the balancer 29a. ing. The guide cover 32 guides and guides the detergent to the detergent inlet 31. By inserting a shaft 33 provided on the guide cover 32 into a guide groove 34 provided on the inner side of the detergent inlet 31, two guides shown in FIG. As shown by the dotted line, the door is openable and detachable and is detachably attached, and the detergent is introduced between the washing / dehydrating tub 19 a and the receiving tub 17 through the detergent inlet 31.
[0024]
The water injection receiving port 35 is provided above the detergent passage portion 36 formed by the guide cover 32, and is configured such that water is supplied from the water injection receiving port 35. The water injection receiving port 35 includes a plurality of water injection holes 37, and water injection receiving ribs 38 are provided on the ridge walls of the water injection holes 37 on the reverse rotation direction side of the washing and dewatering tub 19a.
[0025]
As shown in FIG. 4, the guide cover 32 is configured such that the front end surface 39 of the guide cover 32 and the upper surface 40 of the detergent charging port 31 are brought into contact with the guide cover 32 being opened. As shown in FIG. 5, when the pocket wall 41 is provided in the detergent inlet 31 and the guide cover 32 is removed, at least the washing water from the inside of the washing and dewatering tub 19 a (arrow B) is the detergent inlet 31. It is configured not to flow into. Other configurations are the same as those of the first embodiment.
[0026]
The operation in the above configuration will be described. As shown in FIG. 4, when the powdered detergent (or liquid detergent) is introduced, the guide cover 32 is opened, the detergent 42 is placed on the guide cover 32, and the guide cover 32 is placed as shown in FIG. When closed, the detergent 42 is introduced between the washing / dehydrating tank 19 a and the receiving tank 17 from the detergent inlet 31.
[0027]
Next, when the operation is started, the water supply valve 25 is operated by the control device 30, and water is supplied into the washing and dewatering tub 19a. At the same time, the washing / dehydrating tub 19a starts rotating, and the detergent is dissolved by the stirring action between the outside of the washing / dehydrating tub 19a and the receiving tub 17 while supplying water. When a predetermined water level is detected by the water level detection means 26, a signal is sent to the control device 30, and the water supply valve 25 stops operating. Thereafter, the motor 22 is operated by the controller 30, starts the washing operation by rotating a pulsator over 18.
[0028]
Therefore, by opening the guide cover 32, placing the detergent 42 on the guide cover 32, and closing the guide cover 32, the detergent 42 can be introduced between the washing / dehydrating tub 19a and the receiving tub 17. It is easy to operate and can improve the cleaning performance and maintenance.
[0029]
In addition, a water injection receiving port 35 is provided above the detergent passage portion 36 formed by the guide cover 32, and by supplying water from the water injection receiving port 35, water can be supplied from the water injection receiving port 35 into the detergent passage portion 36 at the time of water supply. When the detergent 42 is introduced between the washing / dehydrating tub 19a and the receiving tub 17 by closing the guide cover 32, the detergent passage portion can be washed out even if the detergent remains on the guide cover 32. 36 residual detergents can be prevented.
[0030]
Moreover, since the water injection receiving port 35 is constituted by a plurality of water injection holes 37 and the water injection receiving rib 38 is provided on the ridge wall of the water injection hole 37 on the reverse rotation direction side of the washing and dewatering tub 19a, as shown in FIG. Even when the water supply amount when supplying water while rotating the washing and dewatering tub 19a is small, water supply can be effectively flowed into the detergent passage portion 36 by the water injection receiving rib 38, and the detergent can be put on the guide cover 32. Even if it remains, it can be poured out, and the remaining detergent in the detergent passage 36 can be prevented.
[0031]
Further, since the guide cover 32 is configured to contact the tip end surface 39 of the guide cover 32 and the upper surface 40 of the detergent charging port 31 with the guide cover 32 open, when the guide cover 32 is opened, Since the front end 39 of the guide cover 32 is always closed, it is possible to prevent foreign matter from being introduced when the detergent is introduced.
[0032]
In addition, since the pocket wall 41 is provided at the detergent inlet 31 and the guide cover 32 is removed, at least the washing water from the inside of the washing and dewatering tub 19a is configured not to flow into the detergent inlet 31. When the guide cover 32 is forgotten to be attached, it is possible to prevent foreign matter from entering the detergent inlet 31 beforehand.
[0033]
【The invention's effect】
As described above, according to the first aspect of the present invention, the washing / dehydrating tub for storing the laundry, the receiving tub for rotatably storing the washing / dehydrating tub, and the washing / dehydrating tub are provided. A driving means for rotationally driving; an annular balancer that constitutes an upper portion of the washing and dewatering tub and corrects imbalance during rotation; and a water supply valve that supplies water into the washing and dewatering tub ; A detergent inlet is provided in the lower part, and when the detergent is opened, the detergent is placed on the upper surface and closed to guide and guide the detergent to the detergent inlet. It provided a guide cover to direct introduced between receiving the the aquarium tank openably detergent passage portion is formed by the guide cover and the guide cover by closed and the balancer, the detergent Water injection above the passage Only provided mouth, at the time of water supply, because water from the washing and dewatering tank by rotating Rutotomoni the water supply valve is configured to flow into the detergent passage from said injection receptacle, from the time of washing the start The rotation of the washing and dewatering tank can forcibly increase the solubility of the detergent, improve the washing performance without damaging the laundry, reduce washing unevenness, and further reduce the washing time It becomes possible. Further , the detergent can be easily put in between the washing / dehydrating tub and the receiving tub, so that the detergent can be easily operated and the cleaning property, maintenance and the like can be improved. Further , when water is supplied, the water supply can be caused to flow into the detergent passage portion from the water injection receiving port, and even if the detergent remains on the guide cover, it can be poured out, and the remaining detergent in the detergent passage portion can be prevented.
[0034]
According to the invention described in claim 2 , since the water injection receiving port comprises a plurality of water injection holes and the water injection receiving rib is provided on the ridge wall of the water injection hole on the reverse rotation direction side of the washing and dewatering tub, Even when the water supply amount is low when the cum dewatering tank is rotated, the water injection rib allows the water supply to effectively flow into the detergent passage, and even if the detergent remains on the guide cover, it will flow out. And residual detergent in the detergent passage can be prevented.
[0035]
The contact according to the invention described in claim 3, at the time of opening the openable guide cover for guiding guides detergent, a detergent inlet side of the distal end surface of the guide cover and the upper surface of the detergent input opening Therefore, when the guide cover is opened, the detergent inlet is always closed by the tip of the guide cover on the detergent inlet side. it can.
[0036]
Further, according to the invention described in claim 4, the bottom of the detergent input port, the pocket-like wall protruding upward is provided, at the time of removal of the removable guide cover for guiding guides detergent, washing濯兼de Since the washing water from the inside of the water tank is configured not to flow into the detergent inlet, it is possible to prevent foreign matters from entering the detergent inlet when the guide cover is forgotten to be installed.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a washing machine according to a first embodiment of the present invention. FIG. 2 is a sectional view of essential parts of the washing machine according to a second embodiment of the present invention. FIG. 4 is a cross-sectional view of the main part of the washing machine with the guide cover opened. FIG. 5 is a cross-sectional view of the main part of the washing machine with the guide cover removed. Perspective view [Fig. 7] Longitudinal sectional view of a conventional washing machine [Explanation of symbols]
17 Receiving tank 19 Washing / dehydrating tank 22 Motor (drive means)

Claims (4)

  1. A washing / dehydrating tub for storing laundry, a receiving tub for rotatably storing the washing / dehydrating tub, a driving means for rotationally driving the washing / dehydrating tub, and an upper portion of the washing / dehydrating tub for rotation An annular balancer that corrects the imbalance of the time, and a water supply valve that supplies water into the washing and dewatering tub. A detergent inlet is provided at a lower portion of the balancer, and the detergent inlet is open. a guide cover for direct introduced between the tub and the washing and dewatering tank the detergent from the guides and the detergent inlet to the detergent inlet by closing placing the detergent on the upper surface at the time of A detergent passage portion is formed by the guide cover and the balancer by opening and closing the guide cover and closing the guide cover, and a water inlet is provided above the detergent passage portion. Rotate dehydration tank Configuration the washing machine as the water supply from Rutotomoni the water supply valve is to flow into the inside of the detergent passageway from the injection receptacle.
  2. Water injection receptacle is made of a plurality of injection holes, and a washing machine according to claim 1, wherein the water injection receiving rib in the edge wall of the water injection holes of the reverse rotational direction side of the washing and dewatering tank provided.
  3. In the open time of the openable guide cover for guiding guides detergent, washing machine of claim 1, wherein configured so as to contact with the upper surface of the detergent inlet side of the distal end surface of the guide cover and the detergent inlet.
  4. The bottom of the detergent input port inlet, a pocket-like wall protruding upward is provided, at the time of removal of the removable guide cover for guiding guides detergent, washing water from the inside of the washing濯兼dehydrating tub is detergents inlet The washing machine according to claim 1 , wherein the washing machine is configured so as not to occur.
JP00057299A 1999-01-05 1999-01-05 Washing machine Expired - Fee Related JP4013380B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP00057299A JP4013380B2 (en) 1999-01-05 1999-01-05 Washing machine

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP00057299A JP4013380B2 (en) 1999-01-05 1999-01-05 Washing machine
KR1019990041303A KR100567486B1 (en) 1999-01-05 1999-09-27 Washing machine
CNB991205766A CN1207460C (en) 1999-01-05 1999-09-29 washing machine
TW088116737A TW479089B (en) 1999-01-05 1999-09-29 Washing machine
CN99243482U CN2407020Y (en) 1999-01-05 1999-09-29 washing machine

Publications (2)

Publication Number Publication Date
JP2000197795A JP2000197795A (en) 2000-07-18
JP4013380B2 true JP4013380B2 (en) 2007-11-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP00057299A Expired - Fee Related JP4013380B2 (en) 1999-01-05 1999-01-05 Washing machine

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Country Link
JP (1) JP4013380B2 (en)
KR (1) KR100567486B1 (en)
CN (2) CN1207460C (en)
TW (1) TW479089B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201165610Y (en) * 2008-01-18 2008-12-17 上海泰硕商务信息咨询有限公司 Washing machine
JP5649048B2 (en) * 2010-10-12 2015-01-07 パナソニックIpマネジメント株式会社 Washing machine
CN102926171A (en) * 2011-08-09 2013-02-13 丁明良 Additional water injection method of automatic washing machine
CN103850087B (en) * 2012-11-28 2017-05-03 青岛海尔滚筒洗衣机有限公司 Control method of drum washing machine with surgent water flow
CN104074031B (en) * 2013-03-30 2018-03-30 青岛海尔洗衣机有限公司 It is a kind of that there is the washing machine for spraying outer bung
KR20150135772A (en) * 2013-03-30 2015-12-03 하이어 그룹 코포레이션 Washing machine having sprinkling outer drum lid and inner circulating sprinkling method thereof
JP2015080559A (en) * 2013-10-22 2015-04-27 株式会社東芝 Washing machine
EP3396044A4 (en) * 2015-12-25 2019-08-28 Toshiba Lifestyle Products & Services Corp Washing machine
JP2017176819A (en) * 2016-03-23 2017-10-05 東芝ライフスタイル株式会社 Washing machine
CN106381630B (en) * 2016-09-30 2018-09-18 无锡小天鹅股份有限公司 Rotary drum washing machine
CN106367911B (en) * 2016-09-30 2019-03-26 无锡小天鹅股份有限公司 Rotary drum washing machine
CN107083656B (en) * 2017-04-11 2019-08-27 海信(山东)冰箱有限公司 A kind of washing machine
WO2019085934A1 (en) * 2017-11-02 2019-05-09 青岛海尔洗衣机有限公司 Laundry treating apparatus and control method
JP2019180655A (en) * 2018-04-05 2019-10-24 Qingdao haier washing machine co ltd Vertical washing machine

Also Published As

Publication number Publication date
CN1207460C (en) 2005-06-22
TW479089B (en) 2002-03-11
JP2000197795A (en) 2000-07-18
CN2407020Y (en) 2000-11-22
CN1259595A (en) 2000-07-12
KR100567486B1 (en) 2006-04-03
KR20000052333A (en) 2000-08-25

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