WO2017005381A1 - Laundry care apparatus and laundry care method - Google Patents

Abstract

Disclosed is a laundry care apparatus (100) and an associated laundry care method. The laundry care apparatus comprises a rotatably mounted inner tub (106) for accommodating items of laundry (108), a drive motor (105) for rotating the inner tub (106), a feeding device (114) for feeding fresh water and detergent into the inner tub (106), a pumping device (120) for recirculating the washing liquid out of the inner tub (106) and back into the inner tub (106), and a control device (118) for controlling the drive motor (105), the feeding device (114) and the pumping device (120) in accordance with a laundry care program running on the control device (118) during operation of the apparatus. The control device (118) is designed to activate the feeding device (114) during a first feeding step of a laundry care program during which fresh water and detergent is fed to the inner tub (106) by means of the feeding device (114). It is also designed to deactivate the latter at the end of a first feeding interval and to activate, within a tolerance interval, the pumping device (120) at the same time when the feeding device (114) is activated, and to deactivate the pumping device at the end of a first pumping interval.

Description

 Laundry care device and laundry care process

The present invention relates to a laundry care device and a

Laundry care procedures.

A laundry care device is in the context of the present invention, in particular a washing machine, but may also be, for example, a machine for rinsing and / or impregnating laundry items. These other functions can also be integrated in a washing machine.

In the context of a laundry care program of a laundry care appliance, such as e.g. a washing machine, in a dispensing operation by means of a dispenser, a detergent from a detergent receptacle is rinsed together with fresh water in the laundry drum of the laundry care device to the existing laundry items in the laundry drum with the mixture of detergent and fresh water, which is also referred to herein as alkali or washing liquid, to wet. To the entire detergent, which is located in the detergent container, in the

To flush the laundry drum of the laundry care device, usually come at the beginning of a laundry care program several consecutive times

Einspülvorgänge used, which together a Einspülphase the

Define laundry maintenance program.

In particular, in the case that a powder detergent is used for the laundry care program, the problem may arise that the detergent does not completely dissolve in the fresh water or the washing liquid during the Einspülphase the laundry care program. This can, for example disadvantageous in that on the one hand the detergent can not develop its full washing action and on the other hand too much detergent is consumed. It is the object underlying the invention to provide a laundry care device and a laundry care method, which, in particular in light of the above-mentioned disadvantages, enable a more efficient care of laundry items. This object is achieved by articles having the features according to the independent claims. Advantageous embodiments of the invention are the subject of the figures, the description and the dependent claims. According to a first aspect of the invention, the object is achieved by a

 Laundry care device with a rotatably mounted laundry drum for receiving laundry items, a drive motor for rotating the laundry drum, a

Einspülvorrichtung for flushing fresh water and detergent in the

Laundry drum, a pumping device for recirculating washing liquid out of the laundry drum and back into the laundry drum and one

 Control device for driving the drive motor, the Einspülvorrichtung and the pumping device according to a running in operation on the control device laundry care program. In this case, the control device is designed, in the context of a first Einspülvorgangs the laundry care program, in which by means of

Einspülvorrichtung fresh water and detergent, i. Washing liquid in the

 Washing drum is activated to activate the Einspülvorrichtung and disable at the end of a first Einspülzeitraums, i. to operate over the first purging period, and at the same time within a tolerance period with the activation of the purging device to activate the pumping device and to deactivate at the end of a first pumping period, i. operate over the first pumping period.

As a result, for example, the technical advantage is achieved that previously undissolved detergent residues are still actively mixed with the washing liquid and deposit less previously unresolved detergent residues in parts of the Wäschepflegeräts.

In an advantageous embodiment, the first flushing process of the laundry care program is the time-first flushing process of the

Laundry care program. As a result, the technical advantage is achieved, for example, that when the time first flushing a laundry care program, in which usually the largest part of the detergent is rinsed into the laundry drum, is provided for a better dissolution of the detergent in the washing liquid. In an advantageous embodiment, the control device is designed to control the drive motor of the laundry drum when deactivating the Einspülvorrichtung at the end of the first Einspülzeitraums already deactivated Umpumpvorrichtung such that the drive motor, the laundry drum via a first

Reversing period drives reversing. This has the technical advantage, for example, that in particular the laundry items resting against the inside of the laundry drum are wetted with washing liquid via the jacket of the laundry drum.

In an advantageous embodiment, the control device is configured as soon as the drive motor has reversed the laundry drum at least once during the first reversing period, i. rotated in one direction of rotation and in the opposite direction of rotation, to activate the pump-over device and deactivate it at the end of a second pump-up period, i. operate over a second pumping period. This has the technical advantage in particular that the laundry items placed inside the laundry drum, also referred to as the laundry core, are thoroughly wetted with washing liquid as a result of the washing liquid introduced into the laundry drum by the pumping device.

In an advantageous embodiment, the control device is designed to control the drive motor of the laundry drum such that during the second

Umpumpzeitraums the laundry drum is rotated at least temporarily with application speed. This has in particular the technical advantage that all items of laundry (even at full load) are evenly wetted or moistened, since during the rotation of the laundry drum with application speed the laundry items abut due to the centrifugal forces on the inside of the laundry drum and introduced by the pumping device in the laundry drum Washing liquid directly on the applied to the inside of the laundry drum coat of laundry hits. As a result of the centrifugal forces occurring during rotation with the application speed, the washing liquid is also pressed out of the items of laundry and can be returned to the laundry drum via the circulating pump for further wetting of the laundry items.

In an advantageous embodiment, the end of the second pumping period falls within a tolerance period with the end of the first reversing period together. This has, for example, the technical advantage that the phase of wetting by reversing and pumping can be followed by a rest phase.

In an advantageous embodiment, the control device is designed to operate the circulation pump during the second pumping period such that the volume flow delivered by the pumping device is greater than or equal to

Drip speed or drip rate of the laundry is. This has, for example, the technical advantage that already at the beginning of by deactivating the

Drive motor and the Umpumpvorrichtung initiated rest phase, the loading of the laundry care device can be estimated by the laundry items based on the pressure of the washing liquid.

 In an advantageous embodiment, the control device is designed to operate after the end of the first reversing period and the second pumping period, i.

During the rest period following the first reversing period and the second pumping period, the pressure of the washing liquid must be recorded and recorded on the

Basis of this pressure parameters of running on the controller

Laundry care program. This has, for example, the technical advantage that parameters of the laundry care program can be adapted to the actual load, for example to reduce the energy consumption of the laundry care appliance.

According to a second aspect of the invention, the object is achieved by a

Laundry care process for a laundry care device with a rotatably mounted

Laundry drum for picking up laundry, a drive motor for

Rotating the laundry drum, a Einspülvorrichtung for injecting fresh water and detergent into the laundry drum, a pumping device for recirculating washing liquid from the laundry drum out and back into the laundry drum and a control device for driving the drive motor, the

Einspülvorrichtung and the pumping device according to one in operation on the

Control device running laundry maintenance program. It includes the

Wäschepflegeverfahren the steps by means of the control device in the context of a first Einspülvorgangs the laundry care program in which by means of

Dispenser Fresh water and detergent is flushed into the laundry drum to activate the dispenser and at the end of a first Einspülzeitraums to deactivate and at the same time within a tolerance period with the activation of the flushing device to activate the pumping device and to deactivate at the end of a first pumping period.

As a result, for example, the technical advantage is achieved that previously undissolved detergent residues are still actively mixed with the washing liquid and deposit less previously unresolved detergent residues in parts of the Wäschepflegeräts.

In an advantageous embodiment, the first flushing process of the laundry care program is the time-first flushing process of the

Laundry care program. As a result, the technical advantage is achieved, for example, that when the time first flushing a laundry care program, in which usually the largest part of the detergent is rinsed into the laundry drum, is provided for a better dissolution of the detergent in the washing liquid. In an advantageous embodiment, when the dispenser is deactivated at the end of the first dispensing period, the drive motor of the laundry drum is driven by the control device such that the drive motor reversibly drives the laundry drum over a first reversing period. This has the technical advantage, for example, that in particular the laundry items resting against the inside of the laundry drum are wetted with washing liquid via the jacket of the laundry drum.

In an advantageous embodiment, the pumping device, as soon as the

Drive motor has reversed the laundry drum during the first reversing period at least once, activated by the controller and at the end of a second

Pumping period disabled. This has in particular the technical advantage that caused by the pumping introduced by the introduction of the washing liquid in the

Laundry drum in particular the more lying inside the laundry drum laundry items, also referred to as a laundry core, are well wetted with washing liquid.

In an advantageous embodiment, the control device controls the drive motor of the laundry drum in such a way that during the second pumping period, the Laundry drum is rotated at least temporarily with application speed. This has in particular the technical advantage that all items of laundry (even at full load) are evenly wetted or moistened, since during the rotation of the laundry drum with application speed the laundry items abut due to the centrifugal forces on the inside of the laundry drum and introduced by the pumping device in the laundry drum Washing liquid directly on the applied to the inside of the laundry drum coat of laundry hits. By in the rotation with

Anlegedrehzahl occurring centrifugal forces, the washing liquid is also pressed out of the laundry items and can be supplied via the pumping device for further wetting the laundry items of the laundry drum again.

In an advantageous embodiment, the end of the second pumping period within a tolerance period coincides with the end of the first reversing period. This has, for example, the technical advantage that the phase of wetting by reversing and pumping can be followed by a rest phase.

In an advantageous embodiment, the control device detects the pressure of the after the end of the first reversing period and the second pumping period

Washing liquid and adjusts based on this pressure parameters of running on the controller laundry care program. This has, for example, the technical advantage that parameters of the laundry care program can be adapted to the actual load, for example to reduce energy consumption.

Further embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Show it:

Fig. 1 is a schematic view of a laundry care device;

FIG. 2 is an exemplary schematic diagram showing the time course of a plurality of variables during a dispensing phase of a laundry care process. FIG

illustrated; and 3 is an exemplary schematic diagram showing the time course of pressure for two different loadings during a dispensing phase of a

 Laundry care process in a laundry care device in the form of a

 Washing machine according to the present invention and a conventional washing machine illustrated.

Figure 1 shows a schematic representation of a washing machine representative of a general laundry care device 100. The laundry care device 100 in the form of a

Washing machine is used for washing laundry and similar laundry with a detergent. If necessary, the washing machine can also be used as a

Washer dryer be designed to wash laundry items or similar laundry and dry. In the context of the invention, the term

"Detergent" understood in addition to conventional detergents and treatment additives, such as fabric softener, rinse aid or odor control in various forms (liquid, gel, pasty or powdered).

The washing machine 100 of Figure 1 includes in a machine housing 102 fixed in the machine housing tub 104. A laundry drum 106 is rotatably mounted in the tub 104 about a horizontal axis of rotation and can be rotated by means of a drive motor 105 at different speeds in rotation, via a electronic control device 1 18 is controlled. In the

Laundry drum 106 are indicated in Figure 1 laundry items 108 which are raised by the driver 1 10 on the inside of the laundry drum 106 during rotation of the laundry drum 106 and fall down again. Thereby finds when rotating the

Laundry drum 106 a constant redeployment of the laundry items 108 instead.

Fresh water can by means of a Einspülvorrichtung 1 14, for example in the form of an inlet valve, from a fresh water line 1 12 through a detergent container 1 16, which may be formed, for example, as Einspülschale and conventional detergents and treatment additives, such as fabric softener, rinse aid,

Odor improver or other laundry treatment agent in various forms (liquid, gel, pasty or powder) may contain, either directly (as shown schematically in Figure 1) or via the tub 104 in the laundry drum 106 are introduced. The mixture of fresh water and detergent is referred to herein as washing liquor or liquor. For controlling the supply of fresh water, the dispenser 1 14 is also connected to the electronic control device 1 18. The tub 104 is provided at its lower end with a downwardly formed trough 128, which forms a heating chamber 130. In the heating chamber 130, an electric heating element 132 is arranged, preferably a tubular heater, with which the washing liquid in the tub 104 can be heated. To control the electric heating element 132, this is also with the electronic

Control device 1 18 connected, as shown schematically in Figure 1.

At the bottom of the trough 128 of the tub 104, a tub outlet 134 is provided, which is connected on the one hand to a transfer pump 120 and on the other hand to a pump-down 144.

The pumping device 120, which in particular serves to wash the laundry items 108 several times with the washing liquid, comprises a pump 122, a suction line 124 on the suction side and a pressure line 126 on the pressure side of the pump 122. By means of the pumping device 120, the washing liquid from the lower end of the tub 104 back into the laundry drum 106 on the laundry items 108 are recirculated. In this case, the washing liquid supplied via the pressure line 126 to the transfer pump device 120 is applied via a nozzle to the laundry items 108 in the laundry drum 106. For controlling the circulating pump 120, in particular the pump 122, this is also connected to the electronic control device 1 18, as shown schematically in Figure 1.

The pump-down device 144, which serves in particular to pump out washing liquid located in the tub 104 and to discharge it from the washing machine 100, comprises a pump 142 with a suction line 140 and a pressure line 146. For controlling the pump-down device 144, in particular the pump 142, this can also be used be connected to the electronic control device 1 18. As shown schematically in FIG. 1, the tub outlet 134, the suction line 124 and the pressure line 126 of the pump-around device 120 and / or the

Suction line 140 and pressure line 146 of the pumping 144 at least

Section rejections include tube sections. An inventive embodiment of the electronic control device 1 18 and their interaction with the above-described components of

Laundry Applicator 100 will be described below in detail in the context of a laundry care process according to the invention with further reference to FIGS. 2 and 3

described.

Figure 2 shows a schematic diagram illustrating the time course of several sizes in a laundry care process according to the invention, namely the time course of the supplied via the dispenser 1 14 amount of water, the activity of the pump 122 of the pumping 120 (ie pump 122 on or off), the Speed of the laundry drum 106 and the temperature of the washing liquid. As the person skilled in the art recognizes, the diagram shown in FIG. 2 shows a flushing-in phase of the laundry care process, in which a plurality of temporally successive ones

Einspülvorgängen the laundry drum 106 fresh water or washing liquid is added, namely, as described above, from the fresh water line 1 12 via the dispenser 1 14 and the detergent container 1 16. The individual Einspülvorgänge are separated by periods in which the laundry drum 106 on the Einspülvorrichtung 1 14 no more fresh water is added, ie the dispenser 1 14 is deactivated or closed. According to the invention, the control device 1 18 is designed, in the context of the time-first flushing operation of the flushing operations shown in FIG

Essentially at the same time the Einspülvorrichtung 1 14 and the pumping device 120 to activate. The corresponding first pumping period over which the

Pumping device 120 is operated by the control device 1 18 is marked in Figure 2 with the letter "A". The duration of the first pumping period marked in Figure 2 with the letter "A" may be only a few seconds. In this case, the duration of the first pump-over period may be shorter than the duration of the first flush-in period. The substantially simultaneous flushing and pumping ensures that previously undissolved detergent residues are further actively mixed with the washing liquid and less previously unresolved detergent residues in parts of the Wäschepflegeräts 100, in particular at the bottom of the tub 104 and / or in the tubular tub outlet 134, deposit , From practice it is known that the largest share of the detergent together with the first four liters of fresh water in the

Lye container 104 is flushed.

The control device 118 can also be designed to start a reversing phase with the deactivation of the flushing device 14 at the end of the first flushing period when the pumping device 120 has already been deactivated, ie. to drive the drive motor 105 of the laundry drum 106 such that the drive motor 105 the

Laundry drum 106 is reversibly driven over a first reversing period, i. the laundry drum 106 first in one direction and then in the

opposite direction of rotation rotates. In this case, the laundry drum 106 can first be brought to a speed of, for example, 55 rpm in one direction of rotation and then to a speed of 55 rpm, for example, in the opposite direction of rotation. This ensures that in particular the on the inside of the

Laundry drum 106 adjacent laundry items 108 on the mantle

Laundry drum 106 are wetted with washing liquid. In Figure 2 can be the

Reversing the laundry drum 106 recognize, for example, at the two mountains and valleys of the speed curve before the marked with the numeral "1" rest phase.

The control device 118 may further be configured, as soon as the drive motor 105 has reversed the laundry drum 105 at least once during the first reversing period, to activate the recirculation device 120 and to deactivate it at the end of a second pumping period, i. operate over a second pumping period. In Figure 2 falls such a second pumping period, in which the

Umpumpvorrichtung 120 is active, each with a portion of the marked in Figure 2 with the letters "B", "C", "D" and "E" periods together. The operation of the

Umpumpvorrichtung 120 during such a second pumping period has in particular the technical advantage that caused by the Umpumpvorrichtung 120 introducing the washing liquid into the washing drum 106 in particular the more lying inside the laundry drum 106 laundry items 108, as well

Laundry core labeled, be well wetted with washing liquid.

The control device 1 18 may further be adapted to drive the drive motor 105 of the laundry drum 106 such that during the second pumping period described above, the laundry drum 106 at least temporarily with

Starting speed is rotated. Such a rotation of the laundry drum 106 with

Applying speed is shown in Figure 2 in the period "D". The application speed may be, for example, in a range of about 80 to about 500 U / min. Rotating the laundry drum 106 at this time, i. with simultaneous pumping, with applying speed causes the laundry items due to the centrifugal forces on the

Abut the inside of the laundry drum and the washing liquid introduced by the pumping device 120 into the laundry drum 106 strikes the casing of laundry items 108 resting on the inside of the laundry drum 106 directly. This ensures a uniform wetting or thorough wetting of almost all laundry items 108 (even with full loading of the laundry drum 106). By in the rotation with

Anfegedreh occurring centrifugal forces is also the washing liquid from the

Laundry items 108 pressed out and fed through the active Umpumpvorrichtung 120 for further wetting the laundry items 108 of the laundry drum 106 again. In a preferred embodiment, both the first reversing period described above and the second pumping period described above end substantially simultaneously, as can be seen in Figure 2 the end of the respective periods "B", "C", "D" and "E" , In a preferred embodiment begins with the simultaneous end of a first Reversierzeitraums and a second

Pumping period a respective rest period. Four such rest periods are indicated in Figure 2 with the numbers "1", "2", "3" and "4". In a preferred embodiment, the dispenser 1 14 during the respective rest periods "1" to "4" inactive. In a preferred embodiment, the control device 1 18 is designed, after the end of a first reversing period and a second pumping period, ie during a resting phase following the first reversing period and the second pumping period, for example the resting phases "1", "2" shown in FIG " "3" or "4" to detect the pressure of the washing liquid in the tub 104 and adjust based on this pressure parameters of running on the control device 1 18 laundry care program. This has, for example, the technical advantage that parameters of the laundry care program can be adapted to the actual load, for example to reduce energy consumption. For detecting the pressure of the washing liquid in the tub 104, for example, in the trough 128 of the tub 104, a pressure sensor may be provided, which communicates with the control device 1 18 in connection.

FIG. 3 shows an exemplary schematic diagram which shows the time pressure curve for two different loadings, namely a full load and a half load, during a part of the rinsing phase shown in FIG

Laundry washing machine according to the invention in the form of a washing machine 100 (on the left side) and a conventional washing machine (on the right side) represents. The uniform initially sharply rising and then flattening parts of the respective curve corresponding to the resting phases shown in Figure 2, wherein in Figure 3, two rest phases are shown. As can be seen from FIG. 3, in a laundry machine according to the invention in the form of a washing machine 100, which is operated as described above, a minimum pressure delta required for a load differentiation is reached at an earlier time t ₀ than in a conventional washing machine in which the a load differentiation required minimum pressure delta first at time t ₀ 'is achieved. An inventive washing machine 100 operated as described above thus allows a faster and better estimation of the load than conventional

Washing machines, which can reduce the overall duration of the laundry care program and the laundry care program faster and better adapted to the actual load, which in turn improves the washing result and energy consumption can be reduced.

Alternatively or additionally, the control device 1 18 may be designed to operate the transfer pump device 120 during the second transfer pumping period such that the volume flow conveyed by the transfer pump device 120 is not smaller (ie greater than or equal to) than a dripping rate or drip rate of the laundry articles 108. This has for example the technical advantage that already at the beginning of by deactivating the drive motor 105 and the recirculation device 120 initiated rest phase, for example, at the beginning of the rest phases shown in Figure 2 "1", "2", "3" or "4", the loading of the laundry care device 100 through the laundry items 108 based on the pressure of Washing liquid in the tub 104 can be estimated.

All of the features explained and shown in connection with individual embodiments of the invention may be provided in different combinations in the article according to the invention in order to simultaneously realize their advantageous effects. The scope of the present invention is given by the claims and is not limited by the features illustrated in the specification or shown in the figures.

LIST OF REFERENCE NUMBERS

100 laundry care device

102 machine housing

104 tubs

105 drive motor

106 laundry drum

108 pieces of laundry

1 10 drivers

 1 12 fresh water pipe

1 14 Einspülvorrichtung

1 16 detergent container

1 18 control device

120 pumping device

122 pump

 124 suction line

 126 pressure line

 128 trough

 130 heating chamber

 132 heating element

 134 Lye container drain

140 suction line

 142 pump

 144 pumping device

146 pressure line

Claims

1 . Laundry care device (100) with a rotatably mounted laundry drum (106) for receiving laundry items (108), a drive motor (105) for rotating the laundry drum (106), a dispenser (1 14) for introducing fresh water and detergent into the laundry drum (106 ), one  Umpumpvorrichtung (120) for recirculating washing liquid from the laundry drum (106) out and back into the laundry drum (106) inside and a control device (1 18) for driving the drive motor (105), the Einspülvorrichtung (1 14) and the recirculation device (120 ) according to a running on the control device (1 18) running in the laundry care program, characterized in that  the control device (1 18) is designed to be part of a first  Einspülvorgangs the laundry care program in which by means of  Einspülvorrichtung (1 14) fresh water and detergent is flushed into the laundry drum (106) to activate the Einspülvorrichtung (1 14) and at the end of a first Einspülzeitraums to disable and within a tolerance period with the activation of Einspülvorrichtung (1 14) the  Activate pumping device (120) and at the end of a first  Disable pumping period. 2. laundry care device (100) according to claim 1, characterized in that it is the time of the first flushing of the laundry care program in the first flushing of the laundry care program. 3. laundry care device (100) according to claim 1 or 2, characterized in that the control device (1 18) is designed to deactivate the Einspülvorrichtung (1 14) at the end of the first Einspülzeitraums the drive motor (105) of the laundry drum (106) to drive the drive motor (105) the laundry drum (106) over a first reversing period reversing drives. The laundry care device (100) according to claim 3, characterized in that the control device (1 18) is designed after the drive motor (105) has reversed the laundry drum (106) at least once during the first reversing period, activating the circulation pump (120) and at the end of a second pumping period.  Laundry care device (100) according to claim 4, characterized in that the control device (1 18) is adapted to drive the drive motor (105) of the laundry drum (106) such that during the second Pumping period, the laundry drum (106) at least temporarily with Starting speed is rotated. Laundry care appliance (100) according to claim 4 or 5, characterized in that the end of the second pumping period within a tolerance period coincides with the end of the first reversing period. Laundry care appliance (100) according to one of claims 4 to 6, characterized in that the control device (1 18) is designed to operate the circulation pump (120) during the second pumping period such that the volume flow delivered by the pumping device (122) is greater than or equal to a dripping rate of the laundry items (108) , Laundry care appliance (100) according to one of claims 4 to 7, characterized in that the control device (1 18) is designed to detect the pressure of the washing liquid after the end of the first reversing period and the second pumping period and to adjust parameters of the laundry care program running on the control device on the basis of this pressure. Laundry care method for a laundry care device (100) with a rotatably mounted laundry drum (106) for receiving laundry items (108), a drive motor (105) for rotating the laundry drum (106), a dispenser (1 14) for flushing fresh water and detergent in the laundry drum (106), a recirculation device (120) for recirculating washing liquid from the laundry drum (106) out and back into the Laundry drum (106) into it and a control device (1 18) for driving the drive motor (105), the Einspülvorrichtung (1 14) and the  Umpumpvorrichtung (120) according to a running in operation on the control device (1 18) laundry maintenance program,  characterized in that  the laundry care method comprises the steps of, by means of the control device (1 18) in the context of a first Einspülvorgangs the laundry care program, in which by means of the Einspülvorrichtung (1 14) fresh water and detergent in the laundry drum (106) is flushed to activate the Einspülvorrichtung (1 14) and deactivate at the end of a first purging period and at the same time within a tolerance period with the activation of the purging device (1 14) to activate the transfer pump (120) and at the end of a first  Disable pumping period. 10. laundry care method according to claim 9, characterized in that it is the first flushing process of the laundry care program to the time first flushing the laundry care program. 1 1. Laundry care method according to claim 9 or 10, characterized in that when deactivating the Einspülvorrichtung (1 14) at the end of the first  Einspülzeitraums the drive motor (105) of the laundry drum (106) is driven by the control device (1 18) such that the drive motor (105) reversibly drives the laundry drum (106) over a first reversing period. 12. laundry care method according to claim 1 1, characterized in that, after the drive motor (105) has reversed the laundry drum (106) during the first reversing period at least once, the control device (1 18) the pumping device (120) is activated and at the end of a second  Pumping period disabled. 13. laundry care method according to claim 12, characterized in that the Control device (1 18) the drive motor (105) of the laundry drum (106) in such a way controls that during the second pumping period the laundry drum (106) is rotated at least temporarily with application speed. 14, laundry maintenance method according to claim 12 or 13, characterized in that the end of the second pumping period within a tolerance period coincides with the end of the first reversing period. Laundry care method according to one of claims 12 to 14, characterized  in that, after the end of the first reversing period and of the second pumping period, the control device (1 18) controls the pressure of the  Detects washing liquid and adapts on the basis of this pressure parameters of running on the control device laundry program.