Patent ID: 8627690

Claim:
A washing machine comprising: a cabinet; a tub installed in the cabinet, the tub comprising an interior; a spin basket rotatably installed in the tub; a tub cover provided at an upper portion of the tub, the tub cover including a disc-shaped tub cover body having a bottom surface facing the interior of the tub and with a central opening for receiving laundry and an outer rim provided at an outer section thereof and an inner rim provided at an inner section thereof; a circulation pump to cause water to be drawn from the tub and pumped back into the tub via a circulation passage hose connected between a connector of the tub cover and the circulation pump, wherein the tub cover is integrally formed as a single piece with the connector connected with the circulation passage hose; a pair of guide ribs formed on a bottom surface of the disc-shaped tub cover body, each guide rib respectively located at left and right sides of a hole of the connector; and a protrusion rib formed on the bottom surface transversely between the pair of guide ribs such that water flowing out of the connector is directed toward the bottom surface where the protrusion rib is formed, wherein the protrusion rib extends downward from the bottom surface so as to diffusely spread the water flowing out of the connector in a downward direction toward the spin basket, and wherein the protrusion rib is located in a region between the inner rim and the outer rim.