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
Application number
DE8585111188T
Other languages
German (de)
Inventor
Piero Durazzani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Industrie Zanussi SpA
Original Assignee
Industrie Zanussi SpA
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 Industrie Zanussi SpA filed Critical Industrie Zanussi SpA
Application granted granted Critical
Publication of DE3581461D1 publication Critical patent/DE3581461D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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).
DE8585111188T 1984-09-18 1985-09-04 INTERCHANGEABLE GEARBOX FOR WASHING MACHINE. Expired - Fee Related DE3581461D1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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