FR2704565A1 - Household machine with automatic control for washing and rinsing laundry. - Google Patents

Abstract

In order to optimize the result of washing and rinsing, for each washing program selected, the duration of the drum rotation is adapted by means of additional information on the quantity of laundry introduced into said drum.

Description

Household machine with automatic control for washing and rinsing

laundry

  The invention relates to a household machine with controlled

  Automatic washing and rinsing machine for laundry in a detergent bath by means of a rotary laundry drum, comprising a device for adjusting the duration of rotational training according to selected washing programs. Household washing machines of this type are common in the trade. The length of time the laundry drum rotates during the "Washing" and / or "Rinsing" program part is adapted to different washing programs that can be selected. The duration of rotational training is modified by varying the ratios

  rotation pulses / pauses or by adopting maximum times va-

  for washing and / or rinsing. Thus, for example, for fragile textiles, for example for wool or delicate linen, the duration of rotational drive will be considerably reduced by

  compared to less fragile types of laundry, for example supple

  both boiling or colored linen. However, this adaptation is only made each time for the maximum load for the program concerned. In the presence of a lower load or a higher load, the course of the washing and rinsing cycles is no longer

optimal.

  The object of the present invention is therefore to optimize

  wash the wash and / or rinse cycles even when the loads of

linen vary.

  The problem is solved according to the invention in a machine

  housewife of the type indicated in the introduction, by the fact that we do

  determine the duration of rotational training thanks to additional information

  additional on the quantity of laundry introduced into the drum. So can we simultaneously take into account the nature of the laundry and the

  amount of laundry to optimize the wash and / or rinse cycle.

  Information on the quantity of laundry can be entered manually

  via the control panel - as is known -

  or it can be determined by an automatic device

  inside the household machine. Certainly manual entry does not

  puts only relatively crude and imprecise information on the

  quantity of laundry, but taking this information into account

  already kills an important step towards optimizing wash and / or rinse cycles. The automatic determination of information about the quantity of laundry is generally finer and more

  precise, so that it makes it easier to reach a

  optimal result. Also, in the case of an electro- controlled machine

  nique, we will advantageously adopt an automatic determination mode. When, in accordance with an advantageous development of

  the invention the variation of the rotational drive duration is determined

  ending with variable rotation / pause ratios,

  the invention can be applied without difficulty in conjunction with

electro-mechanical chucks.

  The variation of the training time can also be determined.

  undermined by variable washing and / or rinsing times associated with the program concerned. This can be done more easily with a

  electronic control only with electro-mechanical control. Se-

  depending on the conditions, we can also choose a combination of

  two modes of variation. This achieves best results.

  optimal washing and rinsing states with all types of textiles and

all quantities of laundry.

  According to general experience, the duration of training in ro-

  tation should be greatest when the load is maximum. A types

  of identical fabric, the rotational drive time decreases when

  as the load decreases. In the case of electric control devices

  tromechanical, additional breaks can be introduced for this

  res or switch to smaller rotation pulse / break ratios.

  In the case of electronic control devices, the range of

  possibilities is practically unlimited. In this case we can take into account

  te of additional requirements related to the types of textile, for example mechanical actions as limited as possible for wool-based textiles or reduced mechanical actions for delicate textiles, etc.

  The application of the invention makes it possible to obtain several advan-

  tages: the linen being brewed only enough, we can 1. in each case take care of the linen,

  2. reduce washing noise (engine and driving noise)

  ment, laundry clacking and water noises)

  3. protect the engine with a total operating time

more reduced and

4. save energy.

Claims (3)

  1. Household machine with automatic control for washing and rinsing laundry in a laundry bath using a drum   rotary laundry, comprising a device for adjusting the duration of training   rotationally selectable wash programs   born, characterized by the fact that one can also act on the duration of   dragging in rotation by information on the quantity of laundry troduit in the drum.   2. Household machine according to claim 1, characterized in that the variation in the duration of rotation drive is   determined by variable rotation / pause ratios.   3. Household machine according to claim 1 or 2, charac-   sée by the fact that the variation of the rotational drive duration   is determined by variable washing and / or rinsing times as- associated with the program concerned.