DE2457410C3 - Process for carrying out the rinsing process in washing machines - Google Patents

Description

The invention relates to a method for carrying out the rinsing process in washing machines that Have gentle programs with a reduced number of wash cycles compared to the normal program.

In commercially available washing machines, this gets into the fabric of the laundry during the wash cycle Penetrating detergents generally through a multi-stage rinse cycle with simultaneous back and forth Rotation of the laundry container removed, whereby by the program control device several times in succession a complete water supply and drainage is controlled. This way it becomes a satisfactory one Rinsing the laundry achieved, but you have to accept that this is a proportionate long time and considerable water consumption is required. The rinse water is namely after each drained completely in each rinse stage in order to dilute the detergent retained in the laundry and lead away. Furthermore, there are dead times between each flushing water drain and the following Water inlet in the tub.

To shorten the rinsing process and to reduce the water consumption, what was mentioned at the beginning Process known (publication "Blomberg A 450 Bio-Electronic luxury fully automatic washing machine" from Blomberg-Werke AG), in which instead of five rinses in the normal program in the gentle program the Rinses are limited to three by two

5 °

55 rinse cycles can be run over in high speed using the program switch.

By skipping rinse cycles, the washing is treated by the drum movements and the dwell time of the laundry in the rinse water is shortened, which worsens the cleaning result.

The object of the invention is to design a method of the type mentioned at the outset in such a way that that even with gentle programs with a reduced number of wash cycles a satisfactory compensation of the Caustic concentration and a good cleaning result can be achieved.

This object is achieved according to the invention in that one or more pumping stops between the first and the last rinse water changes are hidden and that in each subsequent Rinse cycle the laundry container movement takes place in the same rinse water, the duration of the entire rinsing process is not shortened compared to the normal program.

The reduction in the number of wash cycles can be controlled by simple switching mechanism contacts that cause the pump to stop. Since there is no shortening of the im Normal program duration of the entire rinsing process occurs, those with the remain Pump-out stops for the flushing water drain and the subsequent water supply bridged times as Obtain flush times. The washing result is improved.

The water saving possible through the hidden water changes is with gentle or delicate wash programs due to the low absorbency of synthetic laundry, for example, as well as the lower level Load capacity of this type of laundry is possible compared to normal laundry (e.g. one for 5 kg of normal laundry fully equipped washing machine only loaded with 1.5 kg of synthetic laundry). To carry out the procedure For example, a machine preselection switch that controls the delicate wash programs is designed in such a way that that at the end of one or more wash cycles the pumping out of the washing liquid is prevented, so that there is no water change between two or more wash cycles. Includes a wash program for example, five rinse cycles for normal laundry and three water changes for the desired fine program instead of changing the water five times, this is sufficient without affecting the rinsing result is adversely affected, so can by providing pumping stops at the end of the first and the third Wash cycle from the normal wash program to the fine program. Depending on the number the selected pumping stops and their arrangement in the wash program are all variations between One and five water changes are possible depending on the washing requirements.

Claims (3)

Patent claims: 1. Procedure for carrying out the rinsing process in washing machines with the gentle programs have a reduced number of wash cycles compared to the normal program, characterized in that that water changes are hidden by one or more pumping stops between the first and the last rinse and that in each subsequent rinse cycle the laundry container movement in the same rinse water takes place, the duration of the entire rinsing process compared to the normal program is not shortened. 2. The method according to claim 1, characterized in that the number of water changes that take place is selectable. 3. The method according to claim 1 or 2, characterized in that in a normal program with five rinsing cycles at the end of the first and third rinsing cycle, pumping stops are provided and the gentle program runs with three water changes.