DE3581461D1 - INTERCHANGEABLE GEARBOX FOR WASHING MACHINE. - Google Patents
INTERCHANGEABLE GEARBOX FOR WASHING MACHINE.Info
- Publication number
- DE3581461D1 DE3581461D1 DE8585111188T DE3581461T DE3581461D1 DE 3581461 D1 DE3581461 D1 DE 3581461D1 DE 8585111188 T DE8585111188 T DE 8585111188T DE 3581461 T DE3581461 T DE 3581461T DE 3581461 D1 DE3581461 D1 DE 3581461D1
- Authority
- DE
- Germany
- Prior art keywords
- pulley
- driving pulley
- flyweights
- speed variator
- different
- 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
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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/36—Driving arrangements for rotating the receptacle at more than one speed
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Centrifugal Separators (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Detergent Compositions (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Pulleys (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
A speed variator for a laundry washing machine comprising a drum (6) mounted in a laundering tub (5) and adapted to be rotated at different speeds by a motor (7) via a transmission belt (8) interconnecting a driving pulley (9) of the motor and a driven pulley (10) associated with the drum. The speed variator includes the driving pulley (9) which is provided with flyweights (16) housed in a cavity (15) of the pulley and radially expandable for varying the effective diameter of the pulley and thus the transmission ratio. The speed variator additionally includes a hydraulic piston (17) guided in a cylinder (18) connected to the water supply circuit of the machine via a solenoid valve (19) displacement between different operating positions, said piston cooperating with the flyweights for interdicting or permitting the radial expansion thereof to varying degrees. The internal cavity (15) of the driving pulley (9) is defined by planar or arcuate surface portions (25-29 and 31-35, respectively) interconnected by inclined ramps or arcuate transitions of different radius of curvature, respectively, permitting the flyweights (16) to radially expand to and be retained in different positions depending on the rotational speed of the driving pulley and the operating position assumed by the piston (17).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT45723/84A IT1181077B (en) | 1984-09-18 | 1984-09-18 | SPEED VARIATOR FOR WASHING MACHINES |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3581461D1 true DE3581461D1 (en) | 1991-02-28 |
Family
ID=11257719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8585111188T Expired - Fee Related DE3581461D1 (en) | 1984-09-18 | 1985-09-04 | INTERCHANGEABLE GEARBOX FOR WASHING MACHINE. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0175218B1 (en) |
AT (1) | ATE60379T1 (en) |
DE (1) | DE3581461D1 (en) |
ES (1) | ES288982Y (en) |
IT (1) | IT1181077B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1234687B (en) * | 1989-02-23 | 1992-05-26 | Zanussi A Spa Industrie | SPEED VARIATOR FOR WASHING MACHINES. |
JP2017035202A (en) * | 2015-08-07 | 2017-02-16 | 青島海爾洗衣机有限公司QingDao Haier Washing Machine Co.,Ltd. | Washing machine |
JP6675841B2 (en) * | 2015-08-28 | 2020-04-08 | 青島海爾洗衣机有限公司QingDao Haier Washing Machine Co.,Ltd. | Washing machine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1238265A (en) * | 1959-04-16 | 1960-08-12 | Esswein & Cie | Control device for variable speed drives, in particular for washing machines |
FR85206E (en) * | 1964-02-03 | 1965-07-02 | Thomson Houston Comp Francaise | Autonomous multi-speed drive unit |
DE2045732B2 (en) * | 1970-09-16 | 1973-08-02 | Siemens AG, 1000 Berlin u. 8000 München | V-BELT V-BELT VARIATOR, IN PARTICULAR FOR DRIVING A WASHING MACHINE |
GB1393134A (en) * | 1971-06-11 | 1975-05-07 | Siemens Ag | Centrifugal devices |
IT1174955B (en) * | 1983-12-23 | 1987-07-01 | Zanussi A Spa Industrie | SPEED VARIATOR FOR WASHING MACHINES |
-
1984
- 1984-09-18 IT IT45723/84A patent/IT1181077B/en active
-
1985
- 1985-09-04 EP EP85111188A patent/EP0175218B1/en not_active Expired - Lifetime
- 1985-09-04 AT AT85111188T patent/ATE60379T1/en active
- 1985-09-04 DE DE8585111188T patent/DE3581461D1/en not_active Expired - Fee Related
- 1985-09-11 ES ES1985288982U patent/ES288982Y/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT8445723A0 (en) | 1984-09-18 |
IT1181077B (en) | 1987-09-23 |
ES288982U (en) | 1986-06-16 |
ES288982Y (en) | 1987-03-01 |
EP0175218B1 (en) | 1991-01-23 |
ATE60379T1 (en) | 1991-02-15 |
EP0175218A3 (en) | 1987-08-12 |
IT8445723A1 (en) | 1986-03-18 |
EP0175218A2 (en) | 1986-03-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |