A washing machine comprises a housing including a main inlet on a front surface thereof, a main washing unit disposed in the housing, a main door opening and closing the inlet, and a sub-washing unit disposed in the main door and provided with a pulsator. A large amount of laundry can be washed through the main washing unit and a small amount of laundry can be washed through the sub-washing unit, so that washing can be efficiently performed according to the amount of laundry.

Disclosed herein is a washing apparatus includes a drum, a pulsator, a drum drive motor rotates the drum in a first direction or a second direction, a pulsator drive motor rotates the pulsator in the first direction or the second direction, and a controller controls the drum drive motor to rotate the drum in the first direction and to rotate the drum in the second direction when an operation period expires. When a drum drive current value is greater than a first reference current value during the first direction rotation of the drum, the controller controls the drum drive motor so that the drum drive motor stops rotating the drum in the first direction. When the operation period expires the controller controls the drum drive motor so that the drum is rotated in the second direction.

A washing machine includes an inner tub assembly for accommodating laundry, a pulsator rotatably provided to an inner lower portion of the inner tub assembly, a blade installed at a lower portion of the pulsator to be rotatable independently from the pulsator, the blade being configured to pump wash water to raise the wash water to an upper end of the inner tub assembly, a drive motor for providing rotational power to the pulsator and the blade, and a power transmission unit for transmitting power of the drive motor to the pulsator and the blade, respectively. The power transmission unit includes a first planetary gear module for transmitting a rotational speed of the drive motor to the pulsator by decreasing the rotational speed, and a second planetary gear module for transmitting the rotational speed of the drive motor to the blade by decreasing the rotational speed.

A washing machine includes an inner tub assembly for accommodating laundry, a pulsator rotatably provided to an inner lower portion of the inner tub assembly, a blade installed at a lower portion of the pulsator to be rotatable independently from the pulsator, the blade being configured to pump wash water to raise the wash water to an upper end of the inner tub assembly, a drive motor for providing rotational power to the pulsator and the blade, and a power transmission unit for transmitting power of the drive motor to the pulsator and the blade, respectively. The power transmission unit includes a first planetary gear module for transmitting a rotational speed of the drive motor to the pulsator by decreasing the rotational speed, and a second planetary gear module for transmitting the rotational speed of the drive motor to the blade by decreasing the rotational speed.

A washing machine includes an inner tub assembly for accommodating laundry, a pulsator rotatably provided to an inner lower portion of the inner tub assembly, a blade that is provided to a lower portion of the pulsator, that is configured to rotate independently of the pulsator, and that is configured to pump wash water to raise the wash water to an upper end of the inner tub assembly, a drive motor for providing power for rotating the pulsator and the blade, a power transmission unit transmitting the power of the drive motor to the pulsator and the blade, respectively, and a jig disposed between the pulsator and the blade and coupled with the power transmission unit. The jig is fastened to an inner bottom surface of the inner tub assembly.

A washing machine includes an inner tub assembly for accommodating laundry, a pulsator rotatably provided to an inner lower portion of the inner tub assembly, a blade that is provided to a lower portion of the pulsator, that is configured to rotate independently of the pulsator, and that is configured to pump wash water to raise the wash water to an upper end of the inner tub assembly, a drive motor for providing power for rotating the pulsator and the blade, a power transmission unit transmitting the power of the drive motor to the pulsator and the blade, respectively, and a jig disposed between the pulsator and the blade and coupled with the power transmission unit. The jig is fastened to an inner bottom surface of the inner tub assembly.

The present invention relates to a laundry processing apparatus comprising: a tub for storing water and provided with an opening for putting in and taking out laundry; a drum, provided in the interior of the tub, for storing the laundry supplied through the opening; an agitator rotatably provided inside the drum; a rotating shaft connected to the agitator by penetrating the tub and drum; a driving part for rotating the rotating shaft; a connecting part having a connecting body fixed to the drum, and a body-penetrating hole which is provided so as to penetrate the connecting body and through which the rotating shaft is inserted; and a power transmission part, provided inside the body-penetrating hole and connecting the rotating shaft and connecting body, for transmitting the driving power provided by the rotating shaft to the connecting body only when the rotating shaft is rotating in either the clock-wise direction or counter-clock-wise direction.

The present invention relates to a laundry processing apparatus comprising: a tub for storing water and provided with an opening for putting in and taking out laundry; a drum, provided in the interior of the tub, for storing the laundry supplied through the opening; an agitator rotatably provided inside the drum; a rotating shaft connected to the agitator by penetrating the tub and drum; a driving part for rotating the rotating shaft; a connecting part having a connecting body fixed to the drum, and a body-penetrating hole which is provided so as to penetrate the connecting body and through which the rotating shaft is inserted; and a power transmission part, provided inside the body-penetrating hole and connecting the rotating shaft and connecting body, for transmitting the driving power provided by the rotating shaft to the connecting body only when the rotating shaft is rotating in either the clock-wise direction or counter-clock-wise direction.

Disclosed herein is a washing machine. The washing machine includes a main body having a laundry inlet on a front surface portion of the main body, a tub provided inside the main body for storing washing water, a drum rotatably provided in the tub, a pulsator provided inside the drum and configured to be rotated separately from the drum, and a driving device configured to provide power to the drum and the pulsator, wherein no extra structure is mounted on the inner surface of the drum.

Disclosed herein is a washing machine. The washing machine includes a main body having a laundry inlet on a front surface portion of the main body, a tub provided inside the main body for storing washing water, a drum rotatably provided in the tub, a pulsator provided inside the drum and configured to be rotated separately from the drum, and a driving device configured to provide power to the drum and the pulsator, wherein no extra structure is mounted on the inner surface of the drum.