EP 0536542 A1 19930414 - Method for measuring the weight of the washload in a clothes washing machine.
Title (en)
Method for measuring the weight of the washload in a clothes washing machine.
Title (de)
Verfahren zum Erfassen des Wäschegewichts in Waschmaschinen.
Title (fr)
Procédé pour mesurer le poids du linge dans les machines à laver.
Publication
Application
Priority
IT PN910067 A 19911011
Abstract (en)
Method for measuring the weight of the wash load in a clothes washing machine or a combined clothes washing and drying machine, comprising an electronic microprocessor and a rotating clothes-holding drum driven by an electric motor. Method in which, before any wash cycle is started, said clothes-holding is rotatably driven, without any water being yet filled into the wash tub, with a sequence of movements at the regular wash speed, and then at a first speed (A) that is higher than the regular wash one, and at a second speed (C) which ranges anywhere between the wash and the spin-extraction ones. Then said clothes-holding drum is slowed down so as to reach a third pre-set rotation speed (D). In the process, the microprocessor will measure the period of time T3 + T4 needed by the drum to proceed from speed (A) to speed (D), said period of time being in exact correlation with the actual weight of the washload. Based on said measurement of the weight of the clothes, the microprocessor will then adapt all washing and rinsing cycles to be performed next, thereby optimizing the water, detergent and energy consumption figures thereof. <IMAGE>
IPC 1-7
IPC 8 full level
D06F 34/18 (2020.01); D06F 39/08 (2006.01); G01G 19/52 (2006.01)
CPC (source: EP US)
D06F 34/18 (2020.02 - EP US); D06F 2103/04 (2020.02 - EP US); D06F 2103/38 (2020.02 - EP US); D06F 2105/02 (2020.02 - EP US); D06F 2105/42 (2020.02 - EP US); D06F 2105/48 (2020.02 - EP US)
Citation (search report)
- [A] EP 0415743 A1 19910306 - FISHER & PAYKEL [NZ]
- [AD] EP 0159202 A1 19851023 - ESSWEIN SA [FR]
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0536542 A1 19930414; EP 0536542 B1 19941207; DE 69200827 D1 19950119; DE 69200827 T2 19950413; ES 2067988 T3 19950401; IT 1256270 B 19951129; IT PN910067 A0 19911011; IT PN910067 A1 19930411; JP 3108219 B2 20001113; JP H05200186 A 19930810
DOCDB simple family (application)
EP 92115257 A 19920907; DE 69200827 T 19920907; ES 92115257 T 19920907; IT PN910067 A 19911011; JP 25808092 A 19920928