Abstract: A front-loading-type washing machine of the invention includes a rotary drum; a water tub; a motor; a filter case that communicates with the water tub via a drain pipe connected to the bottom of the water tub and has a filter provided therein; a circulating pump that communicates with the filter case via a circulating water suction pipe connected to the filter case; a channel that communicates with the circulating pump via a circulating water discharge pipe connected to the circulating pump, and is formed on the front inner side of the water tub; a plurality of jetting ports that are provided on the inner peripheral side of the channel and discharge washing water into the water tub; and a control device. The opening area of the jetting port provided at the farthest position from a connecting portion between the circulating water discharge pipe and the channel is larger than the opening area of the jetting port provided at the nearest position from the connecting portion.

Abstract: A drum-type washing machine includes left and right side plates formed of steel plates, the side plates defining side surfaces of an outer case, a front cover provided with an openable and closable door, the front cover defining a front surface of the outer case, an upper cover defining an upper surface of the outer case, a water tank oscillatably arranged in the outer case, and a rotary drum axially supported in the water tank, wherein a plurality of concave portions are formed on the left and right side plates, and the concave portion closer to the front surface of the outer case as a door side has an arc shape with a larger curvature. Thus, rigidity of the side plates in the up and down direction and the left and right direction is increased, so that vibration at the time of spin-drying is reduced.

Abstract: In a drum-type washing machine, a plurality of dampers include a first damper and a second damper, the second damper is provided in such a manner that compression force on the second damper from a rotary drum rotated in the forward direction is larger than that on the first damper, the second damper and a vibration detection portion are arranged posterior to a gravity center of a water tank in the front and rear direction, and the first damper is arranged anterior to the second damper. Thus, precise imbalance determination is performed, so that low vibration is realized.