Patent ID: 7310978

Claim:
A drum washing machine comprising: an outer cabinet; a water tub disposed in the outer cabinet; a generally drum-shaped rotating tub rotatably mounted in the water tub; and an elastic support mechanism, provided inside the outer cabinet, and configured to elastically support the water tub, the elastic support mechanism including an oil damper, and a coil spring, wherein, the oil damper includes: a cylinder which accommodates a piston and oil and has an end formed with an opening, the opening being provided with a tapered cap, having a tapered portion, so as to close the opening of the cylinder, and a piston rod configured to extend through the tapered portion of the cap, the piston rod having one of two ends connected to the piston and the other end having a washer so as to be prevented from falling off; and wherein the coil spring includes: having one of two ends contain a portion with a smaller winding diameter than the other portion thereof, the coil spring being disposed so that the piston rod extends therethrough such that the end with the smaller winding diameter is wound on the tapered portion of the cap, whereas the other end of the coil spring is received by the washer, whereby the coil spring exerts an elastic force between the cylinder and the piston.