IT1264640B1 - PROCEDURE FOR RECOGNIZING IMBALANCES IN DOMESTIC WASHING MACHINES - Google Patents

PROCEDURE FOR RECOGNIZING IMBALANCES IN DOMESTIC WASHING MACHINES

Info

Publication number
IT1264640B1
IT1264640B1 IT93MI001423A ITMI931423A IT1264640B1 IT 1264640 B1 IT1264640 B1 IT 1264640B1 IT 93MI001423 A IT93MI001423 A IT 93MI001423A IT MI931423 A ITMI931423 A IT MI931423A IT 1264640 B1 IT1264640 B1 IT 1264640B1
Authority
IT
Italy
Prior art keywords
revolutions
centrifugation
washing
imbalances
changes
Prior art date
Application number
IT93MI001423A
Other languages
Italian (it)
Inventor
Thomas Stiller
Original Assignee
Licentia Gmbh
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 Licentia Gmbh filed Critical Licentia Gmbh
Publication of ITMI931423A0 publication Critical patent/ITMI931423A0/en
Publication of ITMI931423A1 publication Critical patent/ITMI931423A1/en
Application granted granted Critical
Publication of IT1264640B1 publication Critical patent/IT1264640B1/en

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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/48—Preventing or reducing imbalance or noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

Nelle lavatrici note soltanto alla fine della fase di lavaggio e di risciacquo vengono rilevate le variazioni del numero di giri del tamburo rispettivamente viene misurata all'interno di una fase di avviamento dolce la qualità della distribuzione della biancheria per mezzo di sistemi elettronici per controllare squilibri. In tal caso le fasi di centrifugazione vengono interrotte così frequentemente finché le variazioni del numero di giri saranno al di sotto di un limite prestabilito. Siffatte frequenze di ripetizione della misurazione prolungano il tempo di lavaggio complessivo. Il nuovo procedimento riduce il numero delle interruzioni della centrifugazione mediante riconoscimento precoce ed eliminazione degli squilibri.Già durante le fasi di lavaggio e di risciacquo, nel procedimento secondo l'invenzione, vengono continuamente misurate le variazioni del numero di giri all'interno dei moti di inversione e da ciò viene dedotto il cosiddetto "grado di ammassamento della biancheria". Se questo supera un valore limite, si continua il funzionamento invertibile, finché sarà possibile una centrifugazione rapida. Se invece la variazione del numero di giri dell'ultima rotazione destrorsa del funzionamento invertibile prevista dal programma è inferiore al valore limite, si passa direttamente alla fase del programma "centrifugazione".Il nuovo procedimento è adatto prevalentemente per lavatrici domestiche caricabili della carcassa, le cosiddette "macchine caricabili dall'alto".In washing machines known only at the end of the washing and rinsing phase, changes in the number of revolutions of the drum are detected respectively the quality of the distribution of the laundry is measured within a soft start-up phase by means of electronic systems to control imbalances. In this case, the centrifugation phases are interrupted so frequently until the changes in the number of revolutions are below a predetermined limit. Such repetition rates of the measurement prolong the overall washing time. The new process reduces the number of centrifugation interruptions by early recognition and elimination of imbalances. Already during the washing and rinsing phases, in the process according to the invention, the changes in the number of revolutions are continuously measured within the inversion and from this the so-called "degree of massing of the linen" is deduced. If this exceeds a limit value, invertible operation continues as long as rapid centrifugation is possible. If, on the other hand, if the change in the number of revolutions of the last right-hand rotation of the reversible operation envisaged by the program is lower than the limit value, the program proceeds directly to the "centrifugation" phase. so-called "top-loading machines".

IT93MI001423A 1992-07-02 1993-07-01 PROCEDURE FOR RECOGNIZING IMBALANCES IN DOMESTIC WASHING MACHINES IT1264640B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4221772A DE4221772A1 (en) 1992-07-02 1992-07-02 Registering imbalance in household washing machines - by measuring speed fluctations of the two reversing directions of rotation in washing and rinsing processes, etc.

Publications (3)

Publication Number Publication Date
ITMI931423A0 ITMI931423A0 (en) 1993-07-01
ITMI931423A1 ITMI931423A1 (en) 1995-01-01
IT1264640B1 true IT1264640B1 (en) 1996-10-04

Family

ID=6462353

Family Applications (1)

Application Number Title Priority Date Filing Date
IT93MI001423A IT1264640B1 (en) 1992-07-02 1993-07-01 PROCEDURE FOR RECOGNIZING IMBALANCES IN DOMESTIC WASHING MACHINES

Country Status (3)

Country Link
DE (1) DE4221772A1 (en)
FR (1) FR2693212B1 (en)
IT (1) IT1264640B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4438760A1 (en) * 1994-10-29 1996-05-02 Miele & Cie Method for determining a load level dependent on the type of laundry and the amount of laundry
DE102010013933B4 (en) 2010-04-06 2011-11-24 Diehl Ako Stiftung & Co. Kg Method for operating a laundry treatment appliance

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1038355B (en) * 1975-05-22 1979-11-20 Ire Spa PROCEDURE AND AUTOMATIC MACHINE FOR WASHING AND SPINNING THE LINEN
FR2496356A1 (en) * 1980-12-12 1982-06-18 Thomson Brandt DEVICE FOR CONTROLLING THE SPEED OF AN ELECTRIC MOTOR, IN PARTICULAR FOR A WASHING MACHINE
GB2102985A (en) * 1981-07-31 1983-02-09 Philips Electronic Associated Drum speed control system for a washing machine
CH658410A5 (en) * 1982-12-14 1986-11-14 Escher Wyss Ag METHOD FOR COMPENSATING UNBALANCES WHILE ROTATING SPINNING DEVICES TO A SPECIFIC SPEED, AND THE USE THEREOF.
DE3421845A1 (en) * 1984-06-13 1985-12-19 Robert Bosch Gmbh, 7000 Stuttgart Device for detecting the unbalance of a rotating body
DE3606819A1 (en) * 1986-03-03 1987-09-10 Licentia Gmbh METHOD FOR CORRECTING THE UNBALANCED LIMIT VALUE FOR A PROGRAM-CONTROLLED WASHING MACHINE
AT387462B (en) * 1987-01-15 1989-01-25 Austria Antriebstech UNBALANCE DETECTING DEVICE
DE3726061A1 (en) * 1987-08-06 1989-02-16 Licentia Gmbh METHOD FOR REDUCING THE WEIGHING BALANCE IN WASHING MACHINES
DE3741791C3 (en) * 1987-12-10 1998-01-29 Aeg Hausgeraete Gmbh Procedure for determining the unbalance of laundry in drum washing machines
FR2629484B1 (en) * 1988-03-29 1990-11-16 Esswein Sa IMPROVEMENT IN MEANS FOR DETECTING BALMS IN WASHING MACHINES
DE3812330A1 (en) * 1988-04-14 1989-10-26 Licentia Gmbh Method for measuring the distribution of washing, especially in washing machines and spin driers
DE3911124A1 (en) * 1989-04-06 1990-10-11 Licentia Gmbh Drum-speed control process for domestic washing machines and device for carrying out the process
DE8905566U1 (en) * 1989-05-03 1989-06-29 BSG-Schalttechnik GmbH & Co KG, 7460 Balingen Washing machine with a device for detecting and/or eliminating imbalance phenomena during washing machine spin cycles
DE4022715A1 (en) * 1990-07-17 1992-01-23 Licentia Gmbh Washing machine for washing and spinning - with rotating drum, measures laundry imbalance after soft start-up phase and after preliminary dewatering
DE4038178C2 (en) * 1990-11-30 1994-07-28 Telefunken Microelectron Method for measuring the unbalance of a loaded laundry drum during the spin cycle of a washing machine
IT1250383B (en) * 1991-04-03 1995-04-07 Zanussi Elettrodomestici MEASUREMENT AND BALANCING DEVICE OF UNBALANCED LOADS IN THE BASKET OF WASHING MACHINES

Also Published As

Publication number Publication date
FR2693212A1 (en) 1994-01-07
ITMI931423A1 (en) 1995-01-01
ITMI931423A0 (en) 1993-07-01
DE4221772A1 (en) 1994-01-05
FR2693212B1 (en) 1994-09-02

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Legal Events

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0001 Granted