Patent ID: 8701886
Filing Date: 2014-04-22
Classification: B29C

Abstract:
1. A packaging box, which comprises a top cover and a bottom cover, wherein the top cover comprises: a first member directly supporting a packaged object, the first member having a first indentation on a top side of the first member away from the packaged object, the first indentation having a first flange along at least a circumferential side of the first indentation, and at least a third indentation on a bottom side of the first indentation; and a second member shaped in accordance with the first indentation, the second member having a first step along at least a circumferential side of the second member, and at least a third bulge on a bottom side of the second member, each first step matching a corresponding first flange, and each third bulge matching a corresponding third indentation, so that the second member is embedded reliably in the first indentation; wherein the first and second members have a first buffering capability and a second buffering capability, respectively, and the first buffering capability is greater than the second buffering capability; wherein the bottom cover comprises: a third member directly supporting a packaged object and having a second indentation on a bottom side of the third member away from the packaged object, the second indentation having a second flange along at least a circumferential side of the second indentation, and at least a fourth indentation on a top side of the second indentation; and a fourth member shaped in accordance with the second indentation, the fourth member having a second step along at least a circumferential side of the fourth member, and at least a fourth bulge on a top side of the fourth member, each second step matches a corresponding second flange, and each fourth bulge matches a corresponding fourth indentation, so that the fourth member is embedded reliably in the second indentation; and wherein the third and fourth members have a third buffering capability and a fourth buffering capability, respectively, and the third buffering capability is greater than the fourth buffering capability.