PACKAGING BOX AND METHOD OF PRODUCING THE SAME

摘要

A packaging box having a rectangular bottom plate (1) and side plates (2, 3) upstanding from the periphery of the bottom plate (1) to surround the bottom plate (1). At each of four corners formed by the side plates (2, 3), there is formed a frame column (14) upstanding from the bottom plate (1), extending up to the middle between the bottom plate and the tops of the side plates (2, 3), and joined to the side plates (2, 3). The bottom plate (1), the side plates (2, 3), and the frame columns (14) are constructed from a single corrugated cardboard sheet.