Patent ID: 7422289

Claim:
A frame panel comprising a panel body including a front plate and a rear plate, with a hollow pattern and a groove pattern formed as a reinforcing pattern on the panel body, wherein the front plate and the rear plate are integrally formed as a single body; the front plate is provided with vertical groove patterns and a horizontal groove pattern on an outside area thereof; the rear plate is provided with vertical groove patterns and horizontal groove patterns on each of a central area and an outside area thereof, thus having rectangular reinforcing groove patterns, with a diagonal groove pattern diagonally extending upwards from a lower end of a side of the rectangular reinforcing groove pattern provided on the outside area of the rear plate such that the diagonal groove pattern passes through the rectangular reinforcing groove pattern provided on the central area of the rear plate; wherein each of the vertical groove patterns and the horizontal groove patterns provided on upper, left- and right-side parts of the outside area of the rear plate is integrated with the front plate at a position equal to ½ of a thickness of the panel body; the horizontal groove pattern provided on a lower part of the outside area of the rear plate is depressed to a depth equal to the entire thickness of the panel body and is integrated with the front plate; each of the vertical groove pattern and the horizontal groove pattern provided on the central area of the rear plate is depressed to a depth equal to ½ of the thickness of the panel body; and the diagonal groove pattern provided on the rear plate is depressed to a depth equal to the entire thickness of the panel body and is integrated with the front plate.