| 摘要 |
The purpose of the present invention is to provide a drum washing machine having an increased washing efficiency, which circulates laundry inside a ring-shaped washing space formed between an outer shell and an inner shell by constructing a washing tank as a double cylinder structure made of the outer shell and the inner shell. Therefore, the washing efficiency can be improved as the laundry comes into contact with an inner wall of the washing tank in a side portion and an upper portion of the washing tank. In addition, the drum washing machine enables individual laundry to be uniformly washed by circulating the laundry through the small ring-shaped washing space. According to the drum washing machine of the present invention, the washing tank comprises the outer shell and the inner shell having a smaller diameter than the diameter of the outer shell and has the ring-shaped washing space between the outer and inner shells. A water tank includes an outer water tank body and an inner water tank body enclosing the outer and inner shells of the washing tank, and a door includes a plurality of slope protrusions arranged in a circumferential direction in the inner surface facing the washing space of the washing tank. |
