Drum type washing machine

摘要

A drum type washing machine including a balancer capable of rapidly reducing vibration of a spin tub. The drum type washing machine includes a spin tub which is rotated by receiving rotational force from a driving motor through a rotating shaft, a rear balancer having an annular shape and being coupled to the spin tub, and a shaft flange provided at a center portion thereof with the rotating shaft and coupled to the spin tub so as to uniformly transfer the rotational force to the spin tub. The rear balancer is supported on a rear surface of a rear cover by the shaft flange. Thus, the balls accommodated in the balancer are prevented from moving out of the balancer, even if the balancer is broken due to long-period use.

主权项

1. A drum type washing machine comprising:
a housing; a spin tub rotatable by receiving rotational force from a driving motor through a rotating shaft, the spin tub including a spin tub body having a cylindrical structure formed with a plurality of pores allowing water to pass through the spin tub, the spin tub body having a front section with a laundry receiving opening provided and a rear section opposite to the front section; a rear balancer installed at the rear section of the spin tub to reduce a dynamic imbalance during rotation thereof, the rear balancer including an annular-shaped race having a closed internal space in which a plurality of balls and viscous fluid are accommodated, the annular-shaped race including a first annular-shaped member and a second annular-shaped member joined to each other to define the closed internal space, the first annular-shaped member including a first side wall, a second side wall and a connecting wall between the first side wall and the second side wall, the first annular-shaped member having an open side opposite to the connecting wall, and the second annular-shaped member being adapted to cover the open side of the first annular-shaped member; and a shaft flange including a hub section to fixedly install the rotating shaft and a plurality of arm sections extending radially outward from the hub section and mounted to the spin tub so as to transfer the rotational force to the spin tub, each of the plurality of arm sections having a mounting groove opened toward the rear section of the spin tub to accommodate at least one portion of the rear balancer.