EP0401734A2 - Vorrichtung zum Positionieren der Trommel einer Waschmaschine - Google Patents

Vorrichtung zum Positionieren der Trommel einer Waschmaschine Download PDF

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Publication number
EP0401734A2
EP0401734A2 EP90110581A EP90110581A EP0401734A2 EP 0401734 A2 EP0401734 A2 EP 0401734A2 EP 90110581 A EP90110581 A EP 90110581A EP 90110581 A EP90110581 A EP 90110581A EP 0401734 A2 EP0401734 A2 EP 0401734A2
Authority
EP
European Patent Office
Prior art keywords
basket
timer
positioning
washing
controls
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.)
Withdrawn
Application number
EP90110581A
Other languages
English (en)
French (fr)
Other versions
EP0401734A3 (de
Inventor
Giuseppe Schena
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.)
Whirlpool EMEA SpA
Original Assignee
Indesit Industria Elettrodomestici Italiana SpA
Merloni Elettrodomestici SpA
Indesit Srl
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 Indesit Industria Elettrodomestici Italiana SpA, Merloni Elettrodomestici SpA, Indesit Srl filed Critical Indesit Industria Elettrodomestici Italiana SpA
Publication of EP0401734A2 publication Critical patent/EP0401734A2/de
Publication of EP0401734A3 publication Critical patent/EP0401734A3/de
Withdrawn legal-status Critical Current

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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 
    • D06F37/302—Automatic drum positioning

Definitions

  • the present invention refers to a device for the basket automatic positioning in a top loading washing machine.
  • Top loading washing machines have the problem that, at the end the washing or if the machine is stopped during the washing cycle for loading additional laundry to wash, it is necessary to position the basket so that its opening is accessible. This is done manually by the user but it is an awkward operation in that the weight is usually unevenly distributed causing the basket to resist rotation.
  • the machine can be equipped with a device, such as a push-botton, for starting by hand a slow rotation of the basket; when the basket has reached the desired position, the button is released by the user.
  • a device such as a push-botton
  • the operation requires the user attention, for releasing the button at the right time.
  • the basket positioning can also be realized using a device comprising a push-botton allowing the basket to rotate slowly, a circuit which stops the basket rotation when it reaches the desired position and a warning light advising that said position is reached.
  • a device comprising a push-botton allowing the basket to rotate slowly, a circuit which stops the basket rotation when it reaches the desired position and a warning light advising that said position is reached.
  • the user can work with the lid closed and it can be not transparent. Nevertheless it is required the attention of the user on the advising warning light and he must keep the botton pressed until the warning light comes on; this is an awkward operation if the user hands are engaged, for instance to sustain a basin where collect the washed laundry.
  • the aim of the present invention is to oviate the described drawbacks.
  • a device for positioning the basket in a predefined position suitable for top loading washing machines, of the type comprising a timer which controls the execution of the various washing cycles, means which allow the basket to rotate slowly, means for producing a stop signal when the basket has reached the predefined position and an electronic circuit sensitive to said stop signal for stopping the basket, characterized in that it comprises at least one electric contact operated by the timer, to achieve the basket positioning in the desired position at the end of at least one washing cycle.
  • FIG 1 there is shown with M the motor which drives the basket rotation; with T there is shown a Triac which controls the motor rotation speed; with SR there is indicated a speed control unit, which controls the rotation speed of motor M via said Triac T.
  • the control unit SR comprises a supply circuit (DC SUPPLY) and a TDA 1085 integrated circuit by Motorola Semiconductors.
  • the supply voltage of the 220V A.C. mains is supplied to the two terminals indicated in the figure with 220 V.
  • H21A1 there is indicated a photoelectric coupler by General Electric, comprising a phototransistor and a light-emitting diode.
  • a and B there are indicated two contacts operated by two cams being part of the timer controlling the various washing cycles, not shown in figure 1.
  • A connects an end of the mains to the anodes of two diodes 1N4007 while B connects pin 5 of TDA 1085 to the electric module C.
  • the described circuit operates as follows.
  • the washing machine is equipped with a timer which controls the execution of the various washing cycles (the dial of said timer is shown in figure 2).
  • Said timer shows inside some cams which close the electric contacts controlling the various functions performed by the washing machine.
  • the timer includes two cams which are activated in the final stage of the washing cycle, for instance about 1.5 minutes before its end; supposing that the complete washing cycle is realized by 20 steps of the cams, for 18 of them they will be in the neutral position, at the 19th they will be enabled and at the 20th they will return in the neutral position.
  • Triac T, electronic module C and coupler H21A1 receive voltage via the diodes 1N4007; a current also is supplied to pin 5 of TDA 1085 and the motor starts to rotate slowly, and so the basket of the washing machine.
  • a cam with a nose section which, when the opening of the basket is at the top, intercepts the beam of light between the light-emitting diode and the phototransistor, which are parts of the photoelectric coupler H21A1.
  • the phototransistor is disabled producing a stop signal and the electronic module C, sensitive to said stop signal, stops the basket movement.
  • the two cams return in the neutral position, the two contacts A and open and the circuit is again in the initial operating conditions.
  • the washing machine has ended the washing cycle and on the panel of the machine, in the timer dial (figure 2), the knob has reached the position X (or Y or Z, depending on the type of cycle selected at the start of the washing), corresponding to the 20th step of the two described cams.
  • the basket is positioned towards the top, without that the user should control a warning light and press a button.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Centrifugal Separators (AREA)
EP19900110581 1989-06-09 1990-06-05 Vorrichtung zum Positionieren der Trommel einer Waschmaschine Withdrawn EP0401734A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8967471A IT1234283B (it) 1989-06-09 1989-06-09 Dispositivo per il posizionamento del cestello di una macchina lavabiancheria
IT6747189 1989-06-09

Publications (2)

Publication Number Publication Date
EP0401734A2 true EP0401734A2 (de) 1990-12-12
EP0401734A3 EP0401734A3 (de) 1991-08-14

Family

ID=11302677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900110581 Withdrawn EP0401734A3 (de) 1989-06-09 1990-06-05 Vorrichtung zum Positionieren der Trommel einer Waschmaschine

Country Status (2)

Country Link
EP (1) EP0401734A3 (de)
IT (1) IT1234283B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003087459A1 (en) * 2002-04-10 2003-10-23 Fisher & Paykel Appliances Limited A laundry appliance
US6968632B2 (en) 2002-04-10 2005-11-29 Fisher & Paykel Appliances Limited Laundry appliance
US7249742B2 (en) 2002-04-10 2007-07-31 Fisher & Paykel Appliances Limited Self-levelling foot arrangement for an appliance
WO2008125974A3 (en) * 2007-04-17 2009-03-05 Indesit Co Spa Laundry washing machine
CN108457056A (zh) * 2002-04-10 2018-08-28 青岛海尔洗衣机有限公司 洗衣机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030216A1 (de) * 1979-10-29 1981-06-10 MERLONI ELETTRODOMESTICI S.p.A. Vorrichtung zur Positionierung einer Waschmaschinentrommel
FR2522343A1 (fr) * 1982-02-26 1983-09-02 Thomson Brandt Machine lave-linge

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030216A1 (de) * 1979-10-29 1981-06-10 MERLONI ELETTRODOMESTICI S.p.A. Vorrichtung zur Positionierung einer Waschmaschinentrommel
FR2522343A1 (fr) * 1982-02-26 1983-09-02 Thomson Brandt Machine lave-linge

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003087459A1 (en) * 2002-04-10 2003-10-23 Fisher & Paykel Appliances Limited A laundry appliance
US6968632B2 (en) 2002-04-10 2005-11-29 Fisher & Paykel Appliances Limited Laundry appliance
US7065905B2 (en) 2002-04-10 2006-06-27 Fisher & Paykel Appliances Limited Laundry appliance
US7117613B2 (en) 2002-04-10 2006-10-10 Fisher & Paykel Appliances Limited Laundry appliance
US7225562B2 (en) 2002-04-10 2007-06-05 Fisher & Paykel Appliances Limited Laundry appliance
US7249742B2 (en) 2002-04-10 2007-07-31 Fisher & Paykel Appliances Limited Self-levelling foot arrangement for an appliance
US7257905B2 (en) 2002-04-10 2007-08-21 Fisher & Paykel Appliances Limited Laundry appliance
US7412783B2 (en) 2002-04-10 2008-08-19 Fisher & Paykel Appliances Limited Laundry appliance
US7467483B2 (en) 2002-04-10 2008-12-23 Fisher & Paykel Appliances Limited Laundry appliance
US7762007B2 (en) 2002-04-10 2010-07-27 Fisher & Paykel Appliances Limited Laundry appliance
CN108457056A (zh) * 2002-04-10 2018-08-28 青岛海尔洗衣机有限公司 洗衣机
WO2008125974A3 (en) * 2007-04-17 2009-03-05 Indesit Co Spa Laundry washing machine

Also Published As

Publication number Publication date
IT1234283B (it) 1992-05-14
EP0401734A3 (de) 1991-08-14
IT8967471A0 (it) 1989-06-09

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