Patent ID: 9109323
Filing Date: 2015-08-18
Classification: D06F

Abstract:
1. A washing machine comprising: a synchronous motor unit installed at the bottom of a tub; a drain valve housing installed at the bottom of the tub so as to be spaced from the synchronous motor unit; a link unit disposed between the synchronous motor unit and the drain valve housing, and opening and closing the drain valve housing; a wire unit having one side connected to the synchronous motor unit and the other side connected to the link unit, and moving the link unit according to operation of the synchronous motor unit; a spring member having one side connected to the link unit and the other side connected to the drain valve housing, and providing a restoring force such that the link unit closes the drain valve housing; a clutch lever unit rotatably installed on a clutch base unit, disposed between the link unit and the synchronous motor unit, and rotated in connected with the movement of the link unit caused by the operation of the synchronous motor unit; a cam lever unit connected to the clutch lever unit; a lift lever unit contacted with the cam lever unit; and a coupling unit moved by the lift lever unit and engaged with a rotor unit or clutch body unit, wherein during an on mode of the synchronous motor unit, the wire unit is wound around the synchronous motor unit, the link unit is moved toward the synchronous motor unit to open the drain valve housing, and the clutch lever unit is pressurized by the link unit and moved toward the synchronous motor unit, wherein during an off mode of the synchronous motor unit, the wire unit wound around the synchronous motor unit is unwound, the link unit is moved toward the drain valve housing by a restoring force of the spring member so as to close the drain valve housing, and the pressurization by the link unit is released to return the clutch lever unit to the original position, and wherein the clutch lever unit comprises a through-groove through which the wire unit passes, such that the wire unit does not rotate the clutch lever unit when wound or unwound.