| 摘要 |
A washing machine includes an annular ball balancer in a washing tub about a vertical axis. The ball balancer includes a plurality of balls, a viscous fluid, a balancer case having an annular ring space defined therein, the ring space being partitioned into a bottom surface, top surface, inner circumferential surface, and outer circumferential surface, and a plurality of division plates to partition the ring space into a plurality of arc-shaped divided spaces. The viscous fluid and at least one of the balls are received in each divided space. Each divided space is provided at a portion thereof corresponding to the bottom surface with an inclined surface downwardly inclined from one end of each division plate to a deepest part in a circumferential direction. The deepest part of each divided space is located at a position where weight balance of the balls is achieved in a stop state. |
