GB1255470A - Improvements in or relating to washing machines - Google Patents
Improvements in or relating to washing machinesInfo
- Publication number
- GB1255470A GB1255470A GB24467/70A GB2446770A GB1255470A GB 1255470 A GB1255470 A GB 1255470A GB 24467/70 A GB24467/70 A GB 24467/70A GB 2446770 A GB2446770 A GB 2446770A GB 1255470 A GB1255470 A GB 1255470A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- motor
- speed
- tub
- spin drying
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/005—Methods for washing, rinsing or spin-drying
- D06F35/007—Methods for washing, rinsing or spin-drying for spin-drying only
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
- D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
1,255,470. Washing machines. PHILIPS GLOEILAMPENFABRIEKEN N.V. 20 May, 1970 [23 May, 1969], No. 24467/70. Heading D1A. In a method of using a washing and spin drying machine comprising a resiliently mounted tub accommodating a drum which is rotatable about a horizontal spindle, an electric motor for driving the drum at a washing speed and at a spin drying speed, a constant ratio transmission between the motor and the drum spindle, and water supply and drain means, after the washing operation (e.g. 50 r.p.m.) when the motor is changed over to the spin drying speed and the drum is accelerated with the tub still full of water an intermediate speed (e.g. 70 r.p.m.) is attained at which the torque delivered to the spindle and the. reaction torque are balanced until the water in the tub has been driven into rotation when the reaction torque is reduced and the drum acceleration continues. The drum accelerates through the critical speed range of 100 to 160 rpm to a second intermediate speed (e.g. 200 to 300 r.p.m.) when the drum may be balanced by introducing water into chambers secured to the drum. On draining of the water within the drum, the drum accelerates finally to the spin drying speed (e.g. 1000 r.p.m.). Although the pump may be switched on at the beginning of the spin drying cycle or when either of the intermediate speeds is attained, due to a time lag in its effective operation, the tub is not drained before the second intermediate speed is attained. As shown the tub is suspended by helical springs and is provided with dampers. The motor may be an AC motor with two windings or may be a permanent-magnet induction direct current motor fed by an electronic speed control device. The latter motor may be connected in series with a heater for the tub and braking may be effected by causing the motor to act as a generator for the heater.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6917001A FR2044540A5 (en) | 1969-05-23 | 1969-05-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1255470A true GB1255470A (en) | 1971-12-01 |
Family
ID=9034560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24467/70A Expired GB1255470A (en) | 1969-05-23 | 1970-05-20 | Improvements in or relating to washing machines |
Country Status (6)
Country | Link |
---|---|
CA (1) | CA919933A (en) |
DE (1) | DE2024591B2 (en) |
ES (2) | ES379890A1 (en) |
FR (1) | FR2044540A5 (en) |
GB (1) | GB1255470A (en) |
NL (1) | NL7007173A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2170518A (en) * | 1985-02-06 | 1986-08-06 | Mitsubishi Electric Corp | Dehydrating method for a washing machine |
DE102009002782A1 (en) * | 2009-05-04 | 2010-11-11 | BSH Bosch und Siemens Hausgeräte GmbH | Method for washing laundry in washing machine, involves rotating drum with reduced number of revolutions in region above equipment resonance for specific period, and spraying water on laundry ring of drum |
EP2463431A3 (en) * | 2010-12-09 | 2012-10-03 | Whirlpool Corporation | Method and apparatus for controlling the extraction duration in a laundry treating appliance |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2218420B1 (en) * | 1973-02-19 | 1976-09-10 | Amiens Const Electro Mec | |
FR2218418B1 (en) * | 1973-02-19 | 1977-07-22 | Amiens Const Electro Mec | |
FR2218419B1 (en) * | 1973-02-19 | 1976-09-10 | Amiens Const Electro Mec | |
FR2218422B1 (en) * | 1973-02-19 | 1976-09-10 | Amiens Const Electro Mec | |
FR2236050B1 (en) * | 1973-07-05 | 1976-05-07 | Amiens Const Elect Mec | |
FR2296722A1 (en) * | 1974-12-31 | 1976-07-30 | Thomson Brandt | HORIZONTAL DRUM WASHING MACHINE |
FR2501736A1 (en) * | 1981-03-10 | 1982-09-17 | Thomson Brandt | Washing machine - allows wash drum to turn after washing and before spinning to achieve balanced distribution of laundry |
FR2592068B1 (en) * | 1985-12-20 | 1988-02-12 | Amiens Const Elect Mec | WASHING AND SPINNING MACHINE PROVIDED WITH A TWO-SPEED ASYNCHRONOUS MOTOR AND A DEVICE FOR INTERMEDIATE SPEED |
JP2021126327A (en) * | 2020-02-13 | 2021-09-02 | 日立グローバルライフソリューションズ株式会社 | Washing machine |
-
1969
- 1969-05-23 FR FR6917001A patent/FR2044540A5/fr not_active Expired
-
1970
- 1970-05-16 NL NL7007173A patent/NL7007173A/xx unknown
- 1970-05-20 DE DE2024591A patent/DE2024591B2/en not_active Ceased
- 1970-05-20 GB GB24467/70A patent/GB1255470A/en not_active Expired
- 1970-05-21 ES ES379890A patent/ES379890A1/en not_active Expired
- 1970-05-22 CA CA083424A patent/CA919933A/en not_active Expired
-
1971
- 1971-07-06 ES ES392960A patent/ES392960A1/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2170518A (en) * | 1985-02-06 | 1986-08-06 | Mitsubishi Electric Corp | Dehydrating method for a washing machine |
US4843671A (en) * | 1985-02-06 | 1989-07-04 | Mitsubishi Denki Kabushiki Kaisha | Dehydrating method for a washing machine |
DE102009002782A1 (en) * | 2009-05-04 | 2010-11-11 | BSH Bosch und Siemens Hausgeräte GmbH | Method for washing laundry in washing machine, involves rotating drum with reduced number of revolutions in region above equipment resonance for specific period, and spraying water on laundry ring of drum |
DE102009002782B4 (en) * | 2009-05-04 | 2012-02-23 | BSH Bosch und Siemens Hausgeräte GmbH | A method of rinsing in a washing machine with a rinse step at high drum speed |
EP2463431A3 (en) * | 2010-12-09 | 2012-10-03 | Whirlpool Corporation | Method and apparatus for controlling the extraction duration in a laundry treating appliance |
US9115455B2 (en) | 2010-12-09 | 2015-08-25 | Whirlpool Corporation | Method and apparatus for controlling the extraction duration in a laundry treating appliance |
Also Published As
Publication number | Publication date |
---|---|
ES392960A1 (en) | 1973-10-01 |
FR2044540A5 (en) | 1971-02-19 |
CA919933A (en) | 1973-01-30 |
ES379890A1 (en) | 1972-09-16 |
DE2024591B2 (en) | 1979-04-05 |
DE2024591A1 (en) | 1970-11-26 |
NL7007173A (en) | 1970-11-25 |
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