ES288981U - Speed variator for laundry washing machine. - Google Patents
Speed variator for laundry washing machine.Info
- Publication number
- ES288981U ES288981U ES1985288981U ES288981U ES288981U ES 288981 U ES288981 U ES 288981U ES 1985288981 U ES1985288981 U ES 1985288981U ES 288981 U ES288981 U ES 288981U ES 288981 U ES288981 U ES 288981U
- Authority
- ES
- Spain
- Prior art keywords
- driving pulley
- flyweights
- drum
- piston
- motor
- 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.)
- Granted
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 arrangementsÂ
- D06F37/36—Driving arrangements for rotating the receptacle at more than one speed
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A speed variator for a laundry washing machine comprising a drum (6) mounted for rotation 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 motor (7) and a driven pulley (10) associated with the drum. The driving pulley (9) of the speed variator is of the variable-diameter type and cooperates with a number of radially expandable flyweights (14)> The driving pulley (9) and the motor (7) are carried by a rotatable carrier arm (19) having one of its ends hingedly connected to a lower portion of the tub (5), while its other end is connected to a piston (29) mounted for reciprocating displacement to different operating positions in a cylinder (39) connected through a solenoid valve (31) to the water supply circuit of the machine. The carrier arm (19) is biased by a torsion spring (25) to a position in which the driving pulley (9) is effective to keep the belt (8) under tension against the action caused by the radial expansion of the flyweights (14). The piston (29) acts on the carrier arm (19) in a manner to interdict or to permit the radial expansion of the flyweights (14) to varying degrees depending on the respective position of the piston. As a result, the effective diameter of the driving pulley (9) is varied by different degrees, permitting the drum (6) to be rotated at variable speeds.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT45722/84A IT1181076B (en) | 1984-09-17 | 1984-09-17 | SPEED VARIATOR FOR WASHING MACHINES |
Publications (2)
Publication Number | Publication Date |
---|---|
ES288981U true ES288981U (en) | 1986-06-16 |
ES288981Y ES288981Y (en) | 1987-03-01 |
Family
ID=11257704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES1985288981U Expired ES288981Y (en) | 1984-09-17 | 1985-09-11 | VELOCITY DRIVE FOR WASHING MACHINE. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0175213A3 (en) |
ES (1) | ES288981Y (en) |
IT (1) | IT1181076B (en) |
Family Cites Families (6)
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 |
US3091974A (en) * | 1961-05-22 | 1963-06-04 | Philco Corp | Laundry apparatus |
DE1460850A1 (en) * | 1965-02-11 | 1969-04-30 | Bosch Gmbh Robert | Motor suspension for washing machines |
BE750795A (en) * | 1969-05-24 | 1970-11-03 | Siemens Ag | DRUM WASHING MACHINE AND SINGLE TRANSMISSION |
DE2126092A1 (en) * | 1971-05-21 | 1972-11-30 | Siemens Elektrogeraete Gmbh | Drum washing machine |
IT1174955B (en) * | 1983-12-23 | 1987-07-01 | Zanussi A Spa Industrie | SPEED VARIATOR FOR WASHING MACHINES |
-
1984
- 1984-09-17 IT IT45722/84A patent/IT1181076B/en active
-
1985
- 1985-09-04 EP EP85111174A patent/EP0175213A3/en not_active Withdrawn
- 1985-09-11 ES ES1985288981U patent/ES288981Y/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT8445722A1 (en) | 1986-03-17 |
EP0175213A3 (en) | 1987-08-05 |
IT8445722A0 (en) | 1984-09-17 |
ES288981Y (en) | 1987-03-01 |
IT1181076B (en) | 1987-09-23 |
EP0175213A2 (en) | 1986-03-26 |
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