Patent ID: 7650659

Claim:
A washing method using a washing apparatus comprising an outer casing in which a cleaning liquid is contained and a cylindrical basket-like washing tub of which a central rotating shaft is disposed in a horizontal direction in said outer casing, and wherein said cylindrical basket-like washing tub has plural protruding portions extending at an inner surface along its axial direction and protruding from said inner surface of said cylindrical basket-like washing tub towards the center of said cylindrical basket-like washing tub, said method comprising: a step of placing a laundry article to be washed in said cylindrical basket-like washing tub; a step of introducing said cleaning liquid into said casing and said cylindrical basket-like washing tub to completely fill said basket-like washing tub with said cleaning liquid; and a step of rotating said cylindrical basket-like washing tub, thereby washing said laundry article in such manner that cleaning liquid flow moving from said inner surface of said cylindrical basket-like washing tub toward the center of said cylindrical basket-like washing tub is generated by said protruding portions accompanied by rotation of said cylindrical basket-like washing tub, thereby causing said laundry article in said cylindrical basket-like washing tub to spread out in said cleaning liquid while keeping said laundry article out of contact with said inner surface of said cylindrical basket-like washing tub.