A washing machine includes a first washing compartment to hold a first set of articles to be washed and a second washing compartment to holds a second set of articles to be washed, the second washing compartment having an inserted position and a removed position. A liquid flow valve is configured to connect to an external liquid source to selectively control flow of liquid from the external liquid source and into one or more of the first washing compartment and the second washing compartment. An electric motor is configured to rotate the first washing compartment, and the second washing compartment, when the second washing compartment is in the inserted position. A controller, in communication with the electric motor, determines a mass of the second set of articles and then determines, as a function of the determined mass, a volume of water to be added to the second washing compartment.

A washing machine includes a first washing compartment to hold a first set of articles to be washed and a second washing compartment to holds a second set of articles to be washed, the second washing compartment having an inserted position and a removed position. A liquid flow valve is configured to connect to an external liquid source to selectively control flow of liquid from the external liquid source and into one or more of the first washing compartment and the second washing compartment. An electric motor is configured to rotate the first washing compartment, and the second washing compartment, when the second washing compartment is in the inserted position. A controller, in communication with the electric motor, determines a mass of the second set of articles and then determines, as a function of the determined mass, a volume of water to be added to the second washing compartment.

A laundry treating apparatus includes a tub for holding wash water, a drum rotatably supported in the tub and including a shaft disposed perpendicular with the ground, and a sub-drum detachably mounted to an inner circumferential surface of the drum. The sub-drum is configured to wash laundry independently from the drum. A discharging area of the sub-drum includes an inlet hole configured to draw wash water into the sub-drum, an outlet hole formed in a lateral wall of the sub-drum and configured to discharge the wash water outside the sub-drum, and a filter unit disposed under the discharging area and configured to filter wash water drawn into the sub-drum by rotation of the sub-drum.

A laundry treating apparatus includes a tub for holding wash water, a drum rotatably supported in the tub and including a shaft disposed perpendicular with the ground, and a sub-drum detachably mounted to an inner circumferential surface of the drum. The sub-drum is configured to wash laundry independently from the drum. A discharging area of the sub-drum includes an inlet hole configured to draw wash water into the sub-drum, an outlet hole formed in a lateral wall of the sub-drum and configured to discharge the wash water outside the sub-drum, and a filter unit disposed under the discharging area and configured to filter wash water drawn into the sub-drum by rotation of the sub-drum.

A laundry appliance includes an outer cabinet having a top panel that defines an aperture for accessing an interior of the cabinet. A tub is positioned within the outer cabinet and below the aperture. A rotating drum disposed within the tub. A pretreat basin is selectively positioned in an installed position relative to the top panel and above the drum. The pretreat basin has an outer frame and a pivoting central portion that rotationally operates within the outer frame between a sealed position defined by the pivoting central portion being in alignment with the outer frame and a rotated position defined by the pivoting central portion being rotated out of alignment with the outer frame.

A tub for use in a washer or dryer that is dividable into compartments by use of a removable dividing wall. The removable dividing wall can be inserted manually or mechanically into position and held in place with a removable wall securing device. The tub has expanding and contracting capabilities that allows the diameter of the tub to be altered.

A washing machine includes a first washing tub, and a second washing tub detachably coupled to the first washing tub. The second washing tub includes a container containing laundry, a lower cover coupled to a top of the container and having an inlet configured to receive a water stream moving upwards in the container when the first washing tub rotates, and an upper cover coupled to a top of the lower cover and having an opening for putting the laundry into the container. A flow path is provided between the lower cover and the upper cover to discharge the water stream introduced through the inlet to an outside of the second washing tub. A slide lock is provided on the upper cover, movable between a binding position and an unbinding position, bound to the lower cover in the binding position, and separated from the lower cover in the unbinding position.

A washing machine includes a first washing tub, and a second washing tub detachably coupled to the first washing tub. The second washing tub includes a container containing laundry, a lower cover coupled to a top of the container and having an inlet configured to receive a water stream moving upwards in the container when the first washing tub rotates, and an upper cover coupled to a top of the lower cover and having an opening for putting the laundry into the container. A flow path is provided between the lower cover and the upper cover to discharge the water stream introduced through the inlet to an outside of the second washing tub. A slide lock is provided on the upper cover, movable between a binding position and an unbinding position, bound to the lower cover in the binding position, and separated from the lower cover in the unbinding position.

Disclosed is a method of controlling a laundry treating apparatus comprising a tub configured to hold wash water, a drum mounted in the tub, a pulsator mounted in the drum, a sub-drum coupled to the drum, the sub-drum being configured to hold wash water, and a drive unit configured to rotate the drum and the pulsator. The method comprises a water current forming step comprising performing a basket motion and a pulsate motion and a cooling step comprising lowering the temperature of the drive unit. The basket motion is configured to form water current in the wash water held in the tub and in the sub-drum simultaneously. The pulsate motion is configured to form water current in wash water held in the drum while the pulsator is driven. A performance timing of the cooling step is preset in at least one of the wash cycle or the rinse cycle.

Disclosed is a method of controlling a laundry treating apparatus comprising a tub configured to hold wash water, a drum mounted in the tub, a pulsator mounted in the drum, a sub-drum coupled to the drum, the sub-drum being configured to hold wash water, and a drive unit configured to rotate the drum and the pulsator. The method comprises a water current forming step comprising performing a basket motion and a pulsate motion and a cooling step comprising lowering the temperature of the drive unit. The basket motion is configured to form water current in the wash water held in the tub and in the sub-drum simultaneously. The pulsate motion is configured to form water current in wash water held in the drum while the pulsator is driven. A performance timing of the cooling step is preset in at least one of the wash cycle or the rinse cycle.