Patent ID: 8167193

Claim:
A packaging container for containing an object, comprising: a substantially square-shaped first sheet member and a substantially square-shaped second sheet member overlaid on one another and forming four sides, at least one of the four sides forming an opening from which the object can be inserted into the packaging container; a first flap connected to the first sheet member through a first fold line at the opening, the first flap includes a first cover piece configured to cover one half of the opening when folded and a first spacer connected to the first cover piece through a third fold line; and a second flap connected to the second sheet member through a second fold line at the opening, the second flap includes a second cover piece configured to cover other half of the opening when folded and a second spacer connected to the second cover piece through a fourth fold line, wherein the first flap and the second flap are provided at the opening so as not to overlap each other, and the first cover piece and the second cover piece cover substantially all the opening when folded, and wherein a direction of the first fold line intersects with a direction of the third fold line, a direction of the second fold line intersects with a fourth fold line, and the third fold line comes adjacent to the fourth fold line when folded.