ATE60379T1 - TRANSMISSION FOR WASHING MACHINE. - Google Patents
TRANSMISSION FOR WASHING MACHINE.Info
- Publication number
- ATE60379T1 ATE60379T1 AT85111188T AT85111188T ATE60379T1 AT E60379 T1 ATE60379 T1 AT E60379T1 AT 85111188 T AT85111188 T AT 85111188T AT 85111188 T AT85111188 T AT 85111188T AT E60379 T1 ATE60379 T1 AT E60379T1
- Authority
- AT
- Austria
- Prior art keywords
- pulley
- driving pulley
- flyweights
- speed variator
- different
- Prior art date
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)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Centrifugal Separators (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Pulleys (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Detergent Compositions (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 (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT45723/84A IT1181077B (en) | 1984-09-18 | 1984-09-18 | SPEED VARIATOR FOR WASHING MACHINES |
EP85111188A EP0175218B1 (en) | 1984-09-18 | 1985-09-04 | Speed variator for laundry washing machine |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE60379T1 true ATE60379T1 (en) | 1991-02-15 |
Family
ID=11257719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT85111188T ATE60379T1 (en) | 1984-09-18 | 1985-09-04 | TRANSMISSION 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 DE DE8585111188T patent/DE3581461D1/en not_active Expired - Fee Related
- 1985-09-04 EP EP85111188A patent/EP0175218B1/en not_active Expired - Lifetime
- 1985-09-04 AT AT85111188T patent/ATE60379T1/en active
- 1985-09-11 ES ES1985288982U patent/ES288982Y/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0175218A3 (en) | 1987-08-12 |
ES288982U (en) | 1986-06-16 |
EP0175218A2 (en) | 1986-03-26 |
IT8445723A1 (en) | 1986-03-18 |
EP0175218B1 (en) | 1991-01-23 |
DE3581461D1 (en) | 1991-02-28 |
IT1181077B (en) | 1987-09-23 |
IT8445723A0 (en) | 1984-09-18 |
ES288982Y (en) | 1987-03-01 |
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