DE102019202071A1 - Laundry care device with one control - Google Patents

Abstract

The present invention relates to a laundry care device (100) with a laundry drum (107) for receiving laundry, a drum drive (113) for rotating the laundry drum (107), and a controller (119) for controlling the drum drive (113). The control (119) is designed to activate the drum drive (113) after a spin process of the laundry care device (100) during a positioning period of the laundry detachment process in order to rotate the laundry drum (107) into a starting position. The controller (119) is designed to activate the drum drive (113) after the positioning time segment during a first rotation time segment of a laundry detachment process in order to rotate the laundry drum (107) in a first direction of rotation (117-1) into a first rotational position. The controller (119) is designed to activate the drum drive (113) during a second rotation period of the laundry detachment process following the first rotation period, in order to move the laundry drum (107) from the first rotation position in a second direction opposite to the first rotation direction (117-1) Rotation direction (117-2) to rotate into a second rotational position. The controller (119) is designed to repeat the first and second rotation time segments of the laundry detachment process several times in order to alternate the laundry drum (107) in the first direction of rotation (117-1) and in the second direction of rotation (117-2) between the first and second To rotate rotational position and to detach laundry (125) adhering to the laundry drum (107) from the laundry drum (107).

Description

The present invention relates to a laundry care device with a controller.

In a conventional laundry care device, the laundry drum is rotated at a high speed during a spin process, whereby the laundry received in the laundry drum is pressed against the laundry drum by the acting centrifugal force, so that the laundry may stick to the laundry drum after the spin process and by the Users can often only be removed from the laundry drum with difficulty.

In the DE 103 44 158 B3 discloses a method for washing and / or drying laundry in a washing machine or, in particular, in a tumble dryer, with water being introduced into the tub by the sensor means upon detection of a laundry ring that has not been detached.

In the DE 102 41 682 A1 discloses a method for operating a programmable washing machine, wherein the detachment of the washer ring on the inner wall of the drum is controlled.

The object on which the invention is based is to provide a laundry care device in which an effective detachment of laundry adhering to a laundry drum is ensured.

This object is achieved by the objects with the features according to the independent claims. Advantageous embodiments are the subject matter of the dependent claims, the description and the drawings.

According to a first aspect, the object of the invention is achieved by a laundry care device, with a laundry drum for receiving laundry, a drum drive for rotating the laundry drum, and a control for controlling the drum drive, the control being designed to drive the drum during a spin cycle of the laundry care device of a positioning time segment of a laundry detachment process in order to rotate the laundry drum into a start position, the controller being designed to activate the drum drive during a first rotation time segment of the laundry detachment process after the positioning time segment in order to rotate the laundry drum in a first direction of rotation into a first rotation position , wherein the controller is designed to activate the drum drive during a second rotation time segment of the laundry detachment process following the first rotation time segment in order to move the laundry To rotate the drum from the first rotational position in a second rotational direction opposite to the first rotational direction into a second rotational position, wherein the controller is designed to repeat the first and second rotational time segments of the laundry detachment process several times in order to alternate the laundry drum in the first rotational direction and in the second rotational direction to rotate between the first and second rotational positions and to detach laundry adhering to the laundry drum from the laundry drum.

This has the technical advantage that, through the alternating rotation of the laundry drum between the first and second rotational positions, laundry adhering to the laundry drum after the spinning process can be effectively detached from the laundry drum.

During the spinning process, the centrifugal force acting on the laundry in the rotating laundry drum presses the laundry against the laundry drum and compresses it, creating a laundry ring that adheres to the laundry drum.

In order to detach the laundry adhering to the laundry drum, the control activates the drum drive after the spinning process during the positioning period in order to rotate the laundry drum into the start position. The starting position can in particular correspond to any position of the rotation of the laundry drum, in particular 12 o'clock, 1 o'clock, 2 o'clock, 3 o'clock, 4 o'clock, 5 o'clock, 6 o'clock, 7 o'clock, 8 o'clock, 9 o'clock, 10 o'clock, or 11 o'clock position of the laundry drum.

After the positioning time segment, the control activates the drum drive during the first rotation time segment to rotate the laundry drum in the first direction of rotation, and the control activates the drum drive during the second rotation time segment following the first rotation time segment in order to move the laundry drum from the first rotational position to the second Rotate direction of rotation in the second rotational position.

In particular, the control activates the drum drive during the first rotation period in order to rotate the laundry drum in the first direction of rotation by less than one revolution of the laundry drum, in particular by an angle between 0 ° and 360 °.

In particular, the controller activates the drum drive during the second rotation time segment to rotate the laundry drum in the second direction of rotation by less than one revolution of the laundry drum, in particular by an angle between 0 ° and 360 °.

In particular, a first rotation angle of the rotation of the laundry drum during the first rotation time segment corresponds to a second rotation angle of the rotation of the laundry drum during the second rotation time segment.

The first and / or second rotational position can in particular correspond to any position of the rotation of the laundry drum, in particular a 12 o'clock, 1 o'clock, 2 o'clock, 3 o'clock, 4 o'clock, 5 o'clock, 6 o'clock, 7 o'clock, 8 o'clock, 9 o'clock, 10 o'clock, or 11 o'clock position of the laundry drum.

According to an advantageous embodiment, the first direction of rotation extends in relation to the rotation of the laundry drum counterclockwise and the second direction of rotation extends in relation to the rotation of the laundry drum in the clockwise direction.

According to an alternative advantageous embodiment, the second direction of rotation extends in relation to the rotation of the laundry drum in the counterclockwise direction and the first direction of rotation extends in relation to the rotation of the laundry drum in the clockwise direction.

The controller is designed to repeat the first and second rotation time segments of the laundry detachment process several times, so that the laundry drum can be rotated back and forth alternately between the first and second rotation position. Due to the acceleration and deceleration forces acting on the laundry during the first and second rotation period, laundry adhering to the laundry drum can be effectively detached.

A laundry care device is understood to mean a device which is used for laundry care, e.g. a washing machine or tumble dryer. In particular, such a laundry care device is understood to mean a household laundry care device. So a laundry care device, which is used in the context of housekeeping, and with which laundry is treated in household quantities.

In an advantageous embodiment of the laundry care device, the laundry care device has a device housing with an underside of the housing, the laundry drum being arranged in a rest position after the spin process of the laundry care device, with a lower area of the laundry drum facing the underside of the housing in the rest position of the laundry drum, and being the control designed to activate the drum drive during the positioning period in order to rotate the laundry drum from the rest position to the start position, the lower area of the laundry drum facing away from the underside of the housing in the start position of the laundry drum.

This achieves the technical advantage that an advantageous start position of the laundry drum for the laundry detachment process can be provided, from which the laundry detachment process can advantageously be started.

After the spinning process, the laundry drum remains in the rest position with the drum drive deactivated. Since the laundry does not adhere evenly to the washing drum during the spinning process, an imbalance occurs in the laundry adhering to the washing drum, the imbalance of the laundry being formed by an increased number of items of laundry in an area of the washing ring adhering to the washing drum. Due to the force of gravity acting on the imbalance, after the spinning process with the drum drive deactivated, the laundry drum is aligned in such a way that in the rest position of the laundry drum the lower area of the laundry drum faces the underside of the device housing, so that the laundry drum is in the rest position in particular in FIG Clock position is located.

When the laundry drum is rotated from the rest position to the start position during the positioning period, the lower area of the laundry drum faces away from the underside of the housing. Thus, the laundry drum is in the starting position, in particular at 12 o'clock, 1 o'clock, 2 o'clock, 3 o'clock, 4 o'clock, 5 o'clock, 7 o'clock, 8 o'clock. , 9 o'clock, 10 o'clock, or 11 o'clock position, especially in the 3 o'clock or 9 o'clock position.

In an advantageous embodiment of the laundry care device, the controller is designed to activate the drum drive during the positioning period in order to rotate the laundry drum from the rest position in the first or second direction of rotation by a starting angle into the starting position, the starting angle being between 0 ° and 180 °, in particular 90 °.

This achieves the technical advantage that the start position enables a particularly advantageous starting point for the laundry detachment process in order to detach the laundry ring from the laundry drum in a particularly advantageous manner. Here, the laundry drum can be rotated during the positioning time segment in particular clockwise around the starting angle into the starting position, in particular the 9 o'clock position of the laundry drum, or the laundry drum can be rotated during the positioning time segment in particular counterclockwise around the starting angle in the starting position, in particular the 3 o'clock position of the washing drum.

In an advantageous embodiment of the laundry care device, the controller is designed to activate the drum drive during the first period of rotation in order to rotate the laundry drum in the first direction of rotation by a first rotation angle into the first rotation position, the first rotation angle being between 0 ° and 180 °, in particular 60 °, and / or the controller is designed to activate the drum drive during the second rotation period in order to rotate the laundry drum in the second direction of rotation by a second angle of rotation into the second rotational position, the second angle of rotation between 0 ° and 180 ° , in particular 120 °.

This achieves the technical advantage that, by selecting a suitable first and / or second angle of rotation, the first and / or second rotational position can be set in such a way as to ensure particularly effective detachment of the laundry adhering to the laundry drum.

In particular, during the first rotation period, the laundry drum is rotated from the start position, in particular the 3 o'clock position or the 9 o'clock position of the laundry drum, in the first direction of rotation by a first angle of rotation of in particular 60 ° into the first rotational position, the first Rotation position corresponds in particular to the 1 o'clock position or the 11 o'clock position of the laundry drum.

In particular, during the second rotation period, the laundry drum is rotated from the first rotation position, in particular the 1 o'clock position or the 11 o'clock position of the laundry drum, in the second direction of rotation by a second angle of rotation of in particular 120 ° into the second rotation position, with the second rotational position corresponds in particular to the 5 o'clock position or the 7 o'clock position of the laundry drum. Thus, the laundry drum can be moved back and forth between the 1 o'clock position and the 5 o'clock position, or the laundry drum can be moved back and forth in particular between the 11 o'clock position and the 7 o'clock position.

In an advantageous embodiment of the laundry care device, the controller is designed to activate the drum drive during the repeated first rotation time segment following the second rotation time segment in order to rotate the laundry drum from the second rotation position by a repeated first rotation angle in the first rotation direction into the first rotation position, wherein the repeated first angle of rotation is between 0 ° and 180 °, in particular 120 °.

This has the technical advantage that an advantageous repetition of the first rotation time segment can be ensured.

In particular, during the repeated first rotation period, the laundry drum is rotated again from the second rotation position, in particular the 5 o'clock position or 7 o'clock position of the laundry drum, in the first direction of rotation by a repeated first rotation angle of 120 ° into the first rotation position, wherein the first rotational position corresponds in particular to the 1 o'clock position or the 11 o'clock position of the laundry drum.

In an advantageous embodiment of the laundry care device, the controller is designed to activate the drum drive during the repeated second rotation period following the repeated first rotation period, in order to rotate the laundry drum from the first rotation position by a repeated second rotation angle in the second direction of rotation into the second rotation position , wherein the repeated second angle of rotation is between 0 ° and 180 °, in particular 120 °.

This has the technical advantage that an advantageous repetition of the second rotation time segment can be ensured.

In particular, during the repeated second rotation period, the laundry drum is rotated again from the first rotation position, in particular the 1 o'clock position or the 11 o'clock position of the laundry drum, in the second direction of rotation by a repeated second rotation angle of 120 ° into the second rotation position , wherein the second rotational position corresponds in particular to the 5 o'clock position or the 7 o'clock position of the laundry drum.

The rotation of the laundry drum between the first and second rotation position can be repeated as often as desired by the control, so that the laundry drum is in particular between the 1 o'clock and 5 o'clock positions, or 11 o'clock and 7 o'clock -Position can be rotated back and forth.

In an advantageous embodiment of the laundry care device, the laundry care device has a tub for receiving washing liquid, the laundry drum being rotatably mounted in the tub, the laundry care device has an oscillating system, in particular a spring-loaded oscillating system, which is connected to a device housing of the laundry care device and to the tub is connected to swing the tub and the laundry drum received in the tub, wherein the controller is designed to excite an oscillation of the tub and the laundry drum accommodated in the tub along a vertical direction by the alternating rotation of the laundry drum during the first and second periods of rotation in order to detach laundry adhering to the laundry drum from the laundry drum, the vertical direction being between a Housing top and a housing bottom of the device housing extends.

This achieves the technical advantage that the oscillation system allows the tub and the laundry drum accommodated in the tub to vibrate in the vertical direction. By exciting the oscillation of the laundry drum through the repetitive alternating rotation of the laundry drum in the first and second direction of rotation, a particularly advantageous detachment of the laundry adhering to the laundry drum can be ensured.

In an advantageous embodiment of the laundry care device, the control is designed to activate the drum drive in order to stimulate a periodic oscillation, in particular a sinusoidal oscillation, of the laundry drum accommodated in the tub along the vertical direction by the alternating rotation of the laundry drum in the first and second direction of rotation to detach laundry stuck to the laundry drum from the laundry drum.

This has the technical advantage that a particularly advantageous detachment of the laundry adhering to the laundry drum can be ensured.

In an advantageous embodiment of the laundry care device, the oscillation system is designed to oscillate with a natural oscillation frequency, and the control is designed to activate the drum drive in order to rotate the laundry drum alternately in the first and second direction of rotation at a rotation frequency, the rotation frequency being the natural oscillation frequency of the Oscillation system.

This has the technical advantage that the controller rotates the laundry drum back and forth between the first and second rotational positions at a rotational frequency during the first and second rotational time segments. Because the rotation frequency of the rotating laundry drum corresponds to the natural oscillation frequency of the oscillation system, a particularly advantageous oscillation of the oscillation system can be excited, in particular amplified in a resonant manner, which enables the laundry to be advantageously detached from the laundry drum.

In an advantageous embodiment of the laundry care appliance, the oscillating system has at least one upper spring, in particular two upper springs, which is connected to the appliance housing and the tub, and / or the oscillating system has at least one lower damper, in particular two lower dampers, which is connected to the device housing and the tub.

This achieves the technical advantage that the at least one upper spring and the at least one lower damper can ensure advantageous oscillation of the oscillation system.

In an advantageous embodiment of the laundry care device, the at least one upper spring is connected to a housing top and / or a housing long side of the device housing and to an upper tub area of the tub, and / or the at least one lower damper is connected to a housing bottom and / or a housing long side of the device housing and connected to a lower tub area of the tub.

This has the technical advantage that an effective attachment of the oscillating system is ensured.

In an advantageous embodiment of the laundry care device, the laundry care device has a power detection element for detecting a power value, in particular an electrical and / or mechanical power value of the drum drive, the electrical power value in particular comprising a torque-generating current of the drum drive, the mechanical power value in particular a speed caused by the drum drive comprises the laundry drum, the controller is designed to activate the drum drive prior to the laundry detachment process during a detection process for detecting an imbalance in the laundry drum in order to rotate the laundry drum, the controller being designed to start the laundry detachment process after the detection process if the during the power value detected during the detection process exceeds a power threshold value, and / or the control is implemented during the subsequent to the detection process Laundry detachment process to determine the start position of the laundry drum as a function of the recorded performance value.

This has the technical advantage that the controller can be controlled by comparing the Power value with the power threshold can detect the presence of a washer ring based on an imbalance in the laundry drum. Depending on whether the laundry is in contact with the laundry drum or not, the power value required by the drum drive to rotate the laundry drum from a standstill differs so that the presence of a laundry ring can be effectively detected. If the presence of a laundry ring is detected, the control begins the laundry detachment process. Alternatively or additionally, the controller can determine the starting position of the laundry drum during the subsequent laundry detachment process as a function of the detected power value

In particular, the control can evaluate a speed of the laundry drum detected by a mechanical power detection element and detect the rest position of the laundry drum at a minimum of the detected speed, the control being designed in particular to determine the start position of the laundry drum as a function of the detected rest position.

In particular, the controller can evaluate a torque-generating current of the drum drive detected by an electrical power-detecting element and detect a position of the laundry drum at a maximum of the detected torque-generating current.

In an advantageous embodiment of the laundry care device, the laundry care device has a power detection element for detecting a power value, in particular an electrical and / or mechanical power value of the drum drive, the electrical power value in particular comprising a torque-generating current of the drum drive, the mechanical power value in particular a speed caused by the drum drive comprises the laundry drum, the controller is designed to activate the drum drive to rotate the laundry drum after the second rotation period of the laundry detachment process during a further detection process for detecting an imbalance in the laundry drum, the control being designed to activate the first and second detection process to repeat the second period of rotation of the laundry detachment process if the power value detected during the further detection process has a power threshold t exceeds.

This has the technical advantage that, depending on whether the laundry is in contact with the laundry drum or not, the power value required by the drum drive to rotate the laundry drum from standstill differs so that the presence of a laundry ring is detected by means of a Imbalance of the laundry drum can be effectively detected. If it is detected that laundry is still adhering to the laundry drum after the second rotation time segment, the control repeats the first and second rotation time segment, in particular until no more laundry rings can be detected.

In an advantageous embodiment of the laundry care device, the laundry care device has an output element for outputting a message to the user of the laundry care device, the controller being designed to activate the output element for outputting a message to the user of the laundry care device if, after the further detection process, the during the The performance value recorded in another collection operation exceeds the performance threshold.

This has the technical advantage that the user of the laundry care device can be shown that the laundry ring has not yet detached from the laundry drum after the further detection process.

In an advantageous embodiment of the laundry care device, the laundry care device has a position sensor, in particular a magnetic sensor, optical sensor and / or acceleration sensor, which is designed to indicate a rotational position of the laundry drum, in particular the start position, the first rotational position, the second rotational position and / or the rest position the laundry drum.

This has the technical advantage that the position sensor, in particular an external position sensor, can advantageously determine the rotational positions of the laundry drum by the controller. Depending on the determined rotational position of the laundry drum, the control is designed in particular to determine the respective angle of rotation during the respective period of rotation.

According to a second aspect, the object of the invention is achieved by a method for caring for laundry in a laundry care device, the laundry care device having a laundry drum for receiving laundry, a drum drive for rotating the laundry drum, and a controller for controlling the drum drive, the method having the comprises the following method steps, activating the drum drive by the control after a spin process of the laundry care device during a positioning period of a laundry detachment process in order to rotate the laundry drum into a starting position, activating the drum drive by the control after the positioning time segment during a first rotation time segment of the laundry detachment process in order to rotate the laundry drum in a first direction of rotation into a first rotational position, activation of the drum drive by the controller during a second rotation time segment of the laundry detachment process following the first rotation time segment in order to remove the laundry drum from the to rotate the first rotational position in a second rotational direction opposite to the first rotational direction into a second rotational position, repeating the first and second rotational time segments several times by the controller in order to rotate the laundry drum alternately in the first rotational direction and in the second rotational direction between the first and second rotational position and to detach laundry adhering to the washing drum from the washing drum.

This has the technical advantage that effective detachment of laundry adhering to the laundry drum can be ensured.

Embodiments of the invention are shown in the drawings and are described in more detail below.

• 1 eine schematische Ansicht eines Wäschepflegegeräts;
• 2 eine schematische Ansicht eines Wäschepflegegeräts mit einer Wäschetrommel und mit an der Wäschetrommel haftender Wäsche;
• 3 eine schematische Ansicht eines Wäschepflegegeräts mit einer Wäschetrommel und mit an der Wäschetrommel haftender Wäsche gemäß einer Ausführungsform; und
• 4 eine schematische Darstellung eines Verfahrens zum Pflegen von Wäsche in einem Wäschepflegegerät.

Show it:

• 1 a schematic view of a laundry care device;
• 2 a schematic view of a laundry care device with a laundry drum and with laundry adhering to the laundry drum;
• 3 a schematic view of a laundry care device with a laundry drum and with laundry adhering to the laundry drum according to an embodiment; and
• 4th a schematic representation of a method for caring for laundry in a laundry care device.

1 Figure 12 shows a schematic view of a general laundry care appliance 100 such as a washing machine or tumble dryer. In 1 is a schematic interior view of the laundry care appliance 100 shown, the laundry care device 100 a device housing 101 has, which has a device interior 103 of the laundry care device 100 limited. The device housing 101 has a housing top 101-1 , a case bottom 101-2 , a first longitudinal side of the housing 101-3 and one of the first longitudinal side of the housing 101-3 opposite second longitudinal side of the housing 101-4 on.

The laundry care device 100 has a tub 105 for receiving washing liquid, which in the device interior 103 of the laundry care device 100 is arranged. The laundry care device 100 also has a laundry drum 107 to hold laundry on, which is in the tub 105 is arranged, wherein in the laundry drum 107 absorbed laundry in the 1 is not shown.

Here, the laundry care device 100 especially an oscillating system 109 , in particular a spring-loaded oscillating system 109 , which is in the device interior 103 of the laundry care device 100 arranged and with the device housing 101 and the suds container 105 is connected, the oscillation system 109 is designed, the tub 105 and the one in the tub 105 arranged laundry drum 107 to be pivotable.

Here the oscillation system 109 , especially the sprung oscillating system 109 , at least one top spring 109-1 , especially two upper springs 109-1 , on, and / or has the oscillating system 109 , especially the sprung oscillating system 109 , at least one lower damper 109-2 , in particular two lower dampers 109-2 , on.

As from the 1 can be seen, is the at least one upper spring 109-1 especially with an upper tub area 105-1 of the suds container 105 connected and / or is the at least one lower damper 109-2 especially with a lower tub area 105-2 of the suds container 105 connected.

As from the 1 can be seen, is the at least one upper spring 109-1 especially with the top of the housing 101-1 of the device housing 101 connected and / or is the at least one lower damper 109-2 especially with the underside of the housing 101-2 of the device housing 101 connected.

Even if this is in 1 is not shown, the at least one upper spring can alternatively 109-1 especially with the top of the housing 101-1 , the first long side of the housing 101-3 and / or the second longitudinal side of the housing 101-4 of the device housing 101 be connected. Even if this is in 1 is not shown, the at least one lower damper can alternatively 109-2 especially with the underside of the housing 101-2 , the first long side of the housing 101-3 and / or the second longitudinal side of the housing 101-4 of the device housing 101 be connected.

Through the oscillation system 109 , especially the sprung oscillating system 109 , is an advantageous swingable mounting of the tub 105 and the one in the tub 105 recorded laundry drum 107 ensured.

In particular, a vibration of the tub 105 and the one in the tub 105 recorded laundry drum 107 along a vertical direction 111 are excited, the vertical direction 111 between the top of the housing 101-1 and the bottom of the case 101-2 extends.

The laundry care device 100 also has a drum drive 113 for rotating the washing drum 107 on, the drum drive 113 by a drive shaft 115 with the washing drum 107 is connected, and formed is the laundry drum 107 in a first direction of rotation 117-1 and in one of the first direction of rotation 117-1 opposite second direction of rotation 117-2 to rotate.

The laundry care device 100 also has a controller 119 to control the drum drive 113 on, taking the controller 119 with the drum drive 113 in particular by a first control connection 121-1 connected is.

The laundry care device 100 in particular has a power recording element 123 for detecting a power value, in particular electrical and / or mechanical power value, of the drum drive 113 on, wherein the electrical power value in particular a torque-generating current strength of the drum drive 113 comprises, wherein the mechanical performance value in particular one due to the drum drive 113 effected speed of the laundry drum 107 includes, which with the drum drive 113 in particular through a second control connection 121-2 connected is.

The performance entry element 123 is also particular with the controller 119 through a third control connection 121-3 connected to the controller 119 is formed by the power sensing element 123 evaluate recorded performance value.

2 shows a schematic view of a laundry care device with a laundry drum and with laundry adhering to the laundry drum. For details regarding the laundry care device 100 will refer to the remarks on the 1 referenced.

The laundry care device 100 has a housing interior 103 limiting device housing 101 , a suds container 105 for receiving washing liquid and one in the tub 105 arranged laundry drum 107 for holding laundry 125 on.

A drum drive 115 and a controller 119 of the laundry care device 100 are in the 2 not shown.

Here, the laundry care device 100 also an oscillating system 109 , in particular a spring-loaded oscillating system 109 , which with the device housing 101 and the suds container 105 connected and designed is the tub 105 and the one in the tub 105 arranged laundry drum 107 to be pivotable.

Like in the 2 can be seen, includes the oscillation system 109 at least one top spring 109-1 , especially two upper springs 109-1 , which with the device housing 101 is connected, in particular one of the two upper springs 109-1 with the first long side of the housing 101-3 and the other of the two upper springs 109-1 with the second long side of the housing 101-4 connected is. Alternatively, one or both of the two upper springs can also be used 109-1 with a housing top 101-1 of the device housing 101 be connected.

Here is the at least one upper spring 109-1 with the suds container 105 , in particular with an upper tub area 105-1 of the suds container 105 connected.

Like in the 2 can be seen, includes the oscillation system 109 at least one lower damper 109-2 , in particular two lower dampers 109-2 , which with the device housing 101 is connected, in particular one of the two lower dampers 109-2 with the first long side of the housing 101-3 and the other of the two lower dampers 109-2 with the second long side of the housing 101-4 connected is. Alternatively, one or both of the two lower dampers can also be used 109-2 with a housing bottom 101-2 of the device housing 101 be connected.

Especially in the laundry care device 100 existing oscillation system 109 , is an advantageous swingable mounting of the tub 105 and the one in the tub 105 arranged laundry drum 107 ensured.

In the 2 is a non-rotating laundry drum 107 after a spin cycle of the laundry care device 100 shown. At the end of a laundry care process of the laundry care device 100 becomes the laundry drum 107 rotates at high speed during the spinning process to get in the laundry 125 to drive off bound washing liquid.

Due to the high speed of the rotating laundry drum 107 puts it in the laundry drum 107 absorbed laundry 125 during the spinning process here on the washing drum 107 and forms an in 2 shown laundry ring, which on the laundry drum 107 adheres and continues even after the end of the Spinning process often not from the washing drum 107 solves.

The laundry ring is formed due to the on the laundry 125 Centrifugal force acting during the spinning process and is created by compressing the laundry 125 , thereby increasing the adhesion of the fibers of the laundry 125 is reinforced among each other.

As the laundry 125 not completely evenly on the washing drum during the spinning process 107 creates an imbalance 127 in the one on the laundry drum 107 attached laundry 125 , with the imbalance 127 the laundry 125 by an increased number of laundry items in one area of the laundry drum 107 adherent washer ring is formed.

If the drum drive is deactivated after the end of the spinning process, the laundry drum aligns itself 107 due to the imbalance 127 acting gravity so that a lower area 107-1 the laundry drum 107 in which the imbalance 127 the laundry 125 is arranged, the housing bottom 101-1 is facing.

This in 2 shown position of the laundry drum 107 can also be referred to as the 6 o'clock position and defines the rest position of the laundry drum 107 after the end of the spinning process.

The appearance of on the laundry drum 107 sticky laundry 125 after the spinning process can be disadvantageous because the on the laundry drum 107 sticky laundry 125 when removing from the washing drum 107 often laboriously from the laundry drum by the user 107 must be replaced.

If the laundry care device 100 is designed as a clothes dryer, another problem can arise from the clothes drum 107 sticky laundry 125 result, since a drying process is often carried out in a tumble dryer after the spinning process, in which warm air is in the laundry drum 107 recorded laundry 125 is fed. At the laundry drum 107 sticky laundry 125 can supply warm air into the washing drum 107 or, under certain circumstances, improper use can damage the washing drum 107 sticky laundry 125 to lead.

It is therefore the job of the laundry care device 100 according to the present disclosure after a spinning process on the laundry drum 107 sticky laundry 125 to replace.

3 shows a schematic view of a laundry care device with a laundry drum and with laundry adhering to the laundry drum according to one embodiment.

That in the 3 shown laundry care device 100 according to the embodiment corresponds to that in FIG 2 shown laundry care device 100 except that the laundry drum 107 by activating the drum drive 115 during a positioning period of a laundry detachment process from the in 2 rest position shown, in particular the 6 o'clock position, in the in 3 The starting position shown, in particular the 3 o'clock position, was rotated.

Here was the laundry drum 107 from the in 2 rest position shown, in a first direction of rotation 117-1 around a starting angle 129 in the in 3 shown start position rotates. In the in 3 The starting position shown is a lower area 107-1 the laundry drum 107 in which the imbalance 127 the laundry 125 is arranged, the housing bottom 101-1 turned away. In particular, the lower area is in the starting position 107-1 the laundry drum 107 in which the imbalance 127 the laundry 125 is arranged, the second housing longitudinal side 101-4 facing. In the 3 The starting position shown is not set to the 3 o'clock position, but can in particular be 12 o'clock, 11 o'clock, 10 o'clock, 9 o'clock, 8 o'clock, 7 o'clock, 5 o'clock, 4 o'clock, 3 - Include o'clock, 2 o'clock or 1 o'clock position.

The in 3 control not shown 119 formed the drum drive 113 during a first rotation time segment of the laundry detachment process following the positioning time segment, in order to activate the laundry drum 107 in a first direction of rotation 117-1 by a first angle of rotation 131-1 to rotate to a first rotational position. In the in 3 The view shown is the first angle of rotation 131-1 especially 90 °.

In the in 3 The first rotational position, shown only schematically, is the lower area 107-1 the laundry drum 107 in which the imbalance 127 the laundry 125 is arranged, the housing top 101-1 facing.

In alternative embodiments, the first angle of rotation 131-1 however, any angle in a range between 0 ° and 90 °, in particular 30 °, 60 ° or 90 °, so that the first rotational position of the laundry drum 107 comes to a standstill after the end of the first rotational period of the laundry detachment process in a range between the 3 o'clock position and the 12 o'clock position, in particular in the 2 o'clock position, 1 o'clock position, or 12 o'clock position .

The control 119 is also designed the drum drive 113 during a second rotation time segment of the laundry detachment process following the first rotation time segment, in order to activate the laundry drum 107 in one of the first direction of rotation 117-1 opposite second direction of rotation 117-2 by a second angle of rotation 131-2 to rotate to a second rotational position. In the in 3 The view shown is the second angle of rotation 131-2 especially 180 °.

In the in 3 The lower area is only shown schematically in the second rotational position 107-1 the laundry drum 107 in which the imbalance 127 the laundry 125 is arranged, the housing bottom 101-2 facing.

So comes the laundry drum 107 after the end of the second rotation period of the laundry detachment process in the in 2 shown rest position, in particular 6 o'clock position, to a standstill.

In alternative embodiments, the second angle of rotation 131-2 however, any angle in a range between 0 ° and 180 °, in particular 30 °, 60 °, 90 °, 120 °, 150 ° or 180 °, so that the second rotational position of the laundry drum 107 comes to a standstill after the end of the second rotation period of the laundry detachment process in an area between the 12 o'clock position and the 6 o'clock position, in particular in the 1 o'clock position, 2 o'clock position, 3 o'clock position, 4 o'clock, 5 o'clock, or 6 o'clock position.

The control 119 is designed to repeat the first and second rotation time segments of the laundry detachment process several times in order to move the laundry drum 107 alternately in the first direction of rotation 117-1 and in the second direction of rotation 117-2 to rotate between the first and second rotational positions and on the laundry drum 107 sticky laundry 125 to replace.

In particular, the controller 119 formed the drum drive 115 during the repeated first rotation period following the second rotation period in order to activate the laundry drum 107 from the second rotational position by a repeated first rotational angle 131-3 in the first direction of rotation 117-1 to rotate again to the first rotational position, the repeated first rotational angle 131-3 between 0 ° and 180 °, in particular 180 °.

In particular, the controller 119 formed the drum drive 115 during the repeated second rotation time segment following the repeated first rotation time segment, in order to activate the laundry drum 107 from the first rotational position by a repeated second rotational angle 131-4 in the second direction of rotation 117-2 to rotate again to the second rotational position, the repeated second rotational angle 131-4 between 0 ° and 180 °, in particular 180 °.

The control 119 can in particular repeat the repeated first rotation time segment and the subsequent repeated second rotation time segment as often as desired.

Due to the plurality of rotations of the laundry drum 107 in the first direction of rotation 117-1 and in the second direction of rotation 117-2 can do this on the washing drum 107 sticky laundry 125 can be advantageously replaced without structural changes to the laundry care device 100 would be necessary.

Here is the control 119 formed in particular by the alternating rotation of the laundry drum 107 an oscillation of the through the oscillation system during the first and second rotation time segments 109 swing-mounted tub 105 and the one in the tub 105 recorded laundry drum 107 along a vertical direction 111 to stimulate to the laundry drum 107 sticky laundry 125 from the laundry drum 107 to replace. The vertical direction extends here 111 between the top of the device 101-1 and the bottom of the device 101-2 of the device housing 101 .

The control 119 is designed in particular by the alternating rotation of the laundry drum 107 a periodic oscillation, in particular a sinusoidal oscillation, of the swingably mounted tub 105 and the one in the tub 105 recorded laundry drum 107 along the vertical direction 111 to stimulate to the laundry drum 107 sticky laundry 125 from the laundry drum 107 to replace.

The oscillation system 109 is in particular designed to vibrate with a natural oscillation frequency, and the controller 119 is particularly designed to drive the drum 113 to an alternating rotation of the laundry drum 107 to activate during the first and second rotation time segments with a rotation frequency, the rotation frequency being the natural oscillation frequency of the oscillation system 109 corresponds.

To remove the laundry 125 from the laundry drum 107 the control is to be improved 119 formed, after a multiple repetition of the first and second rotation time segments of the laundry detachment process, the drum drive 113 during a first inversion rotation period of the laundry peeling operation to activate the laundry drum 107 in the second direction of rotation 117-2 to rotate to an inverted first rotational position.

Thus, the laundry drum 107 during the first inversion rotation period opposite to the first direction of rotation 117-1 in the second direction of rotation 117-2 rotates so that the inverted first rotational position of the laundry drum 107 comes to a standstill after the end of the second rotation period of the laundry detachment process in a range between the 12 o'clock position and the 6 o'clock position, in particular in the 11 o'clock position, 10 o'clock position, or 9 o'clock position .

Here is the control 119 furthermore particularly designed to drive the drum during a second inversion rotation time segment of the laundry detachment process that follows the first inversion rotation time segment 113 activate to the laundry drum 107 from the inverted first rotational position in a first rotational direction opposite to the inverted first rotational direction 117-1 to rotate into an inverted second rotational position, so that the inverted second rotational position of the laundry drum 107 comes to a standstill after the end of the inverted second rotational time segment of the laundry detachment process in a range between the 12 o'clock position and the 6 o'clock position, in particular in the 9 o'clock position, 8 o'clock position, 7 o'clock position or 6 o'clock position.

Here is the control 119 designed to repeat the inverted first and second rotation time segments of the laundry detachment process several times to the laundry drum 107 alternately in the second direction of rotation 117-2 and in the first direction of rotation 117-1 to rotate between the inverted second and first rotational positions and on the laundry drum 107 sticky laundry 125 from the laundry drum 107 to replace.

In particular, the laundry care device 100 a performance recording element 123 for detecting a power value, in particular a torque-generating current, of the drum drive 113 on. The control 119 is designed in this case, the drum drive before the laundry detachment process during a detection process 113 activate to the laundry drum 107 to rotate.

The control 119 is designed in particular to start the laundry detachment process after the detection process if the electrical power value detected during the detection process exceeds a power threshold value.

Depending on whether the laundry 125 on the laundry drum 107 is present or not, the electrical power value of the drum drive differs 113 needed to drum the laundry 107 to rotate so that the controller 119 can detect the presence of a washer ring by comparing the electrical power value with the power threshold value.

Thus, when the power threshold value is exceeded by the detected electrical power value, the presence of on the laundry drum 107 sticky laundry 125 through the controller 119 be recognized.

Alternatively or additionally there is the control 119 in particular designed, after the second rotation period of the laundry detachment process, the drum drive during a further detection process 113 activate to the laundry drum 107 to rotate.

Here is the control 119 designed to repeat the first and second rotation time segments of the laundry detachment process after the further detection process if the electrical power value detected during the further detection process exceeds a power threshold value.

Thus, when the power threshold value is exceeded by the detected electrical power value, the presence of on the laundry drum 107 sticky laundry 125 through the controller 119 be recognized. In particular, the controller 119 designed to end the second rotation time segment of the laundry detachment process if the electrical power value detected during the further detection process falls below the power threshold value.

In particular, the laundry care device 100 an output element, in particular a light element, for outputting a message, in particular a warning light, to the user of the laundry care device 100 on. Here is the control 119 in particular designed, the output element for outputting a message to the user of the laundry care device 100 to be activated if, after the further detection process, the electrical power value detected during the further detection process exceeds a power threshold value, so that the user is aware of the presence of an on the laundry drum 107 adherent washer rings can be displayed.

4th shows a schematic representation of a method for caring for laundry in a laundry care device.

The procedure 200 includes activation as the first process step 201 of the drum drive 123 through the controller 119 after a spin cycle of the laundry care device 100 during a positioning period of a laundry peeling operation to the laundry drum 107 to rotate to a starting position.

The procedure 200 comprises activation as the second process step 203 of the drum drive 123 through the controller 119 after the positioning time segment during a first rotation time segment of the laundry detachment process, around the laundry drum 107 in a first direction of rotation 117-1 to rotate to a first rotational position.

The procedure 200 comprises activation as the third process step 205 of the drum drive 123 through the controller 119 during a second period of rotation of the laundry detachment process following the first period of rotation, around the drum 107 from the first rotational position in one of the first rotational directions 117-1 opposite second direction of rotation 117-2 to rotate to a second rotational position.

The procedure 200 comprises as a fourth method step the repeated repetition 207 of the first and second rotation time segments by the controller 119 around the laundry drum 107 alternately in the first direction of rotation 117-1 and in the second direction of rotation 117-2 to rotate between the first and second rotational positions and on the laundry drum 107 sticky laundry 125 from the laundry drum 107 to replace.

All the features explained and shown in connection with individual embodiments of the invention can be provided in different combinations in the subject matter of the invention in order to simultaneously realize their advantageous effects.

The scope of protection of the present invention is given by the claims and is not restricted by the features explained in the description or shown in the figures.

List of reference symbols

100

Laundry care device

101

Device housing

101-1

Housing top

101-2

Housing bottom

101-3

First long side of the case

101-4

Second long side of the housing

103

Device interior

105

Suds container

105-1

Upper tub area

105-2

Lower tub area

107

Laundry drum

107-1

Lower area of the laundry drum

109

Oscillation system

109-1

Upper spring of the oscillating system

109-2

Lower damper of the oscillation system

111

Vertical direction of an oscillation

113

Drum drive

115

drive shaft

117-1

First direction of rotation of the laundry drum

117-2

Second direction of rotation of the laundry drum

119

control

121-1

First control connection

121-2

Second control connection

121-3

Third control connection

123

Service entry element

125

Laundry

127

Laundry imbalance

129

Starting angle

131-1

First angle of rotation

131-2

Second angle of rotation

131-3

Another first angle of rotation

131-4

Another second angle of rotation

200

Method of caring for laundry

201

First process step: Activation of the drum drive during a positioning period

203

Second process step: activating the drum drive during a first rotation period

205

Third method step: activating the drum drive during a second rotation period

207

Fourth method step: the controller repeats the first and second rotation time segments several times

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 10344158 B3 [0003]
• DE 10241682 A1 [0004]

Claims (15)

Laundry care device (100) with a laundry drum (107) for receiving laundry, a drum drive (113) for rotating the laundry drum (107), and a control (119) for controlling the drum drive (113), characterized in that the control (119 ) is designed to activate the drum drive (113) after a spin process of the laundry care device (100) during a positioning time segment of a laundry detachment process in order to rotate the laundry drum (107) into a starting position that the control (119) is formed after the positioning time segment Activate drum drive (113) during a first rotation period of the laundry detachment process in order to rotate the laundry drum (107) in a first direction of rotation (117-1) into a first rotational position, and that the control (119) is designed to drive the drum (113) during a second period of rotation of the laundry following the first period of rotation To activate the release process in order to rotate the laundry drum (107) from the first rotational position in a second rotational direction (117-2) opposite to the first rotational direction (117-1) into a second rotational position, the controller (119) being designed, the first and repeating the second rotation time segment of the laundry detachment process several times in order to rotate the laundry drum (107) alternately in the first direction of rotation (117-1) and in the second direction of rotation (117-2) between the first and second rotational positions and to rotate on the laundry drum (107) Detach adhering laundry (125) from the laundry drum (107). Laundry care device (100) according to Claim 1 , characterized in that the laundry care device (100) has a device housing (101) with a housing underside (101-2), wherein the laundry drum (107) is arranged in a rest position after the spin process of the laundry care device (100), wherein in the rest position the Laundry drum (107) a lower area (107-1) of the laundry drum (107) faces the underside of the housing (101-2), and that the control (119) is designed to activate the drum drive (113) during the positioning time segment in order to achieve the To rotate the laundry drum (107) from the rest position to the start position, the lower area of the laundry drum (107) facing away from the underside of the housing (101-2) in the start position of the laundry drum (107). Laundry care device (100) according to Claim 2 , characterized in that the controller (119) is designed to activate the drum drive (113) during the positioning time segment to move the laundry drum (107) from the rest position in the first or second direction of rotation (117-1, 117-2) by one To rotate the starting angle (129) into the starting position, the starting angle being between 0 ° and 180 °, in particular 90 °. Laundry care device (100) according to one of the preceding claims, characterized in that the control (119) is designed to activate the drum drive (113) during the first rotation period in order to turn the laundry drum (107) in the first direction of rotation (117-1) to rotate a first rotation angle (131-1) into the first rotation position, the first rotation angle (131-1) being between 0 ° and 180 °, in particular 60 °, and / or that the controller (119) is designed to To activate the drum drive (113) during the second rotation period in order to rotate the laundry drum (107) in the second direction of rotation (117-2) by a second angle of rotation (131-2) into the second rotational position, the second angle of rotation (131-2 ) is between 0 ° and 180 °, in particular 120 °. Laundry care device (100) according to one of the preceding claims, characterized in that the control (119) is designed to activate the drum drive (113) during the repeated first rotation time segment following the second rotation time segment in order to move the laundry drum (107) away from the second Rotational position to rotate a repeated first rotation angle (131-3) in the first rotation direction (117-1) into the first rotation position, the repeated first rotation angle (131-3) being between 0 ° and 180 °, in particular 120 °. Laundry care device (100) according to Claim 5 , characterized in that the controller (119) is designed to activate the drum drive (113) during the repeated second rotation time segment following the repeated first rotation time segment, in order to move the laundry drum (107) from the first rotation position by a repeated second rotation angle (131 -4) to rotate in the second direction of rotation (117-2) into the second rotational position, the repeated second angle of rotation (131-4) being between 0 ° and 180 °, in particular 120 °. Laundry care device (100) according to one of the preceding claims, characterized in that the laundry care device (100) has a tub (105) for receiving washing liquid, the laundry drum (107) being rotatably mounted in the tub (105), that the laundry care device ( 100) has an oscillating system (109), in particular a sprung oscillating system (109), which with a Device housing (101) of the laundry care device (100) and is connected to the tub (105) in order to swing the tub (105) and the laundry drum (107) accommodated in the tub (105), the control (119) being designed , by the alternating rotation of the laundry drum (107) during the first and second rotation time segments, an oscillation of the tub and the laundry drum (107) received in the tub (105) along a vertical direction (111) to stimulate laundry adhering to the laundry drum (107) (125) to be detached from the laundry drum (107), the vertical direction (111) extending between a housing top (101-1) and a housing bottom (101-2) of the device housing (101). Laundry care device (100) according to Claim 7 , characterized in that the controller (119) is designed to activate the drum drive (113) in order to generate a periodic oscillation, in particular a sinusoidal oscillation, through the alternating rotation of the laundry drum (107) in the first and second direction of rotation to stimulate the laundry drum (107) accommodated in the tub (105) along the vertical direction (111) and to detach laundry (125) adhering to the laundry drum (107) from the laundry drum (107). Laundry care device (100) according to Claim 7 or 8th , characterized in that the oscillation system (109) is designed to oscillate with a natural oscillation frequency, and that the controller (119) is designed to activate the drum drive (113) to alternately rotate the laundry drum (107) in the first and second direction of rotation (117-1, 117-2) to rotate with a rotation frequency, and wherein the rotation frequency corresponds to the natural oscillation frequency of the oscillation system (109). Laundry care device (100) according to Claim 7 , 8th or 9 , characterized in that the oscillating system (109) has at least one upper spring (109-1), in particular two upper springs (109-1), which is connected to the device housing (101) and the tub (105), and / or that the oscillating system (109) has at least one lower damper (109-2), in particular two lower dampers (109-2), which is connected to the device housing (101) and the tub (105). Laundry care device (100) according to Claim 10 , characterized in that the at least one upper spring (109-1) with a housing top (101-1) and / or a housing longitudinal side (101-3, 101-4) of the device housing (101) and with an upper tub area (105- 1) of the tub (105) is connected, and / or the at least one lower damper (109-2) is connected to a housing underside (101-2) and / or a housing longitudinal side (101-3, 101-4) of the device housing (101 ) and is connected to a lower tub area (105-2) of the tub (105). The laundry care device (100) according to one of the preceding claims, characterized in that the laundry care device (100) has a power detection element (123) for detecting a power value, in particular an electrical and / or mechanical power value of the drum drive (113), the electrical power value in particular a torque-generating value Amperage of the drum drive (113), wherein the mechanical power value includes in particular a speed of the laundry drum (107) caused by the drum drive (113) that the control (119) is designed to detect an imbalance in the before the laundry detachment process during a detection process To activate the laundry drum (107) the drum drive (113) to rotate the laundry drum (107), the controller (119) being designed to start the laundry detachment process after the detection process if the power value detected during the detection process exceeds a power threshold value tet, and / or wherein the controller (119) is designed to determine the starting position of the laundry drum (107) as a function of the detected power value during the laundry detachment process that follows the detection process. The laundry care device (100) according to one of the preceding claims, characterized in that the laundry care device (100) has a power detection element (123) for detecting a power value, in particular an electrical and / or mechanical power value of the drum drive (113), the electrical power value in particular a torque-generating value Amperage of the drum drive (113), wherein the mechanical power value includes in particular a speed of the laundry drum (107) caused by the drum drive (113) that the control (119) is designed to detect after the second period of rotation of the laundry detachment process during a further detection process an imbalance in the laundry drum (107) to activate the drum drive (113) in order to rotate the laundry drum (107), the controller (119) being designed to repeat the first and second rotation time segments of the laundry detachment process after the further detection process n, if the performance value recorded during the further acquisition process exceeds a performance threshold value. Laundry care device (100) according to any one of the preceding claims, characterized in that the laundry care device (100) has a position sensor, in particular a magnetic sensor, optical sensor and / or acceleration sensor, which is designed to be a rotational position of the laundry drum (107), in particular the start position to detect the first rotational position, the second rotational position and / or the rest position of the laundry drum (107). A method (200) for caring for laundry (125) in a laundry care device (100), the laundry care device (100) having a laundry drum (107) for receiving laundry, a drum drive (113) for rotating the laundry drum (107), and a control (119) for controlling the drum drive (113), characterized in that the method has the following method steps, activation (201) of the drum drive (113) by the controller (119) after a spin process of the laundry care device (100) during a positioning time segment of a Laundry detachment process, in order to rotate the laundry drum (107) into a start position, activation (203) of the drum drive (113) by the control (119) after the positioning time segment during a first rotation time segment of the laundry detachment process to rotate the laundry drum (107) in a first direction of rotation ( 117-1) to rotate into a first rotational position, activation (205) of the drum drive (113) by the S control (119) during a second rotation period of the laundry detachment process following the first rotation period in order to move the laundry drum (107) from the first rotation position in a second rotation direction (117-2) opposite to the first rotation direction (117-1) to a second rotation position rotate, multiple repetitions (207) of the first and second rotation time segments by the control (119) to alternate the laundry drum (107) in the first direction of rotation (117-1) and in the second direction of rotation (117-2) between the first and second To rotate rotational position and to detach laundry (125) adhering to the laundry drum (107) from the laundry drum (107).

Images