Drum-type washing machine

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.

1 . A drum-type washing machine, comprising:
 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.   
     
     
         2 . The drum-type washing machine according to  claim 1 , wherein
 the concave portion arranged in a closest position to the front surface of the outer case as the door side has a substantially semicircular shape.   
     
     
         3 . The drum-type washing machine according to  claim 1 , further comprising a suspension hanging down the water tank in the outer case, a damper for damping vibration of the water tank, and a door packing arranged between the water tank and the front cover on the door side, wherein
 the water tank is supported by the suspension, the damper, and the door packing.   
     
     
         4 . The drum-type washing machine according to  claim 2 , further comprising a suspension hanging down the water tank in the outer case, a damper for damping vibration of the water tank, and a door packing arranged between the water tank and the front cover on the door side, wherein
 the water tank is supported by the suspension, the damper, and the door packing.