TWI535910B

PROBLEM TO BE SOLVED: To provide a drum-type washing machine with a simple structure capable of reducing power consumption while improving the cleanness of a drum and an outer tank.SOLUTION: A drum-type washing machine comprises: an outer tank supported in a housing, for storing water inside; a drum encompassed by the outer tank for containing laundry; a driving device for rotationally driving the drum; a control part for controlling the driving device; and water supply means for supplying water to the outer tank, thereby implementing washing and rinsing processes. The rinsing process comprises the step of continuously rotating the drum with water being stored in the outer tank by the water supply means. After discharging a portion of rinsing water used in the rinsing process, the control part implements arc rotation, i.e. rotating the drum less than one rotation with a part of the drum being immersed in the remaining water. The arc rotation is a rapid arc rotation in which the drum is accelerated in an accel