Patent ID: 7677388

Claim:
A disk protecting plate for protecting concentrically stacked and packaged disks, comprising a disk-shaped plate body having a central through hole formed therein; the plate body being provided on a first side with a centered outer annular wall having a diameter larger than a diameter of the central through hole, the outer annular wall being raised from the first side of the plate body by a predetermined short distance, and a plurality of first reinforcing ribs radially outwardly extended from and equally spaced along the outer annular wall; and each of the first reinforcing ribs having a top gradually inclined toward an outer circumferential periphery of the plate body, allowing the plate body to be made with reduced material but enhanced structural strength, wherein when the disks are stacked and packaged between two pieces of the plate bodies the disks are effectively protected against damage, wherein the plate body is further provided on the first side with an inner annular wall concentric with the outer annular wall and having a diameter smaller than the diameter of the outer annular wall, a plurality of low-raised second reinforcing ribs are radially extended between the outer annular wall and the inner annular wall and the plate body has a round recess on a second side opposite to the first side of the plate body at a central portion thereof.