Patent ID: 9422656
Filing Date: 2016-08-23
CPC Classification: D06F

Claim Text:
1. A drum type washing machine comprising: a main tub having a main drum therein that rotates to wash main laundry; a sub tub separate from the main tub and having a sub drum therein that rotates to wash separate laundry; and a clutch unit including a motor configured to provide a rotational force to both of the main drum and the sub drum, a driving part connected to the motor and a power transfer assembly connected to the driving part and selectively connectable to at least one of the main drum and the sub drum, wherein the power transfer assembly comprises: a transfer shaft that is movable in a first direction approaching the driving part and in a second direction moving away from the driving part; a pulley shaft selectively connectable to the transfer shaft; an inner pulley connected to the pulley shaft and transferring rotation of the pulley shaft to one of the main drum and the sub drum; and a cylinder configured to move the transfer shaft in the first and second directions.