Patent ID: 8783549

Claim:
A packing box comprising: a bottom plate; a proximate end and a distal end first side plates arranged so as to extend in a substantially co-planar manner from opposed edges of the bottom plate, and adapted to be bent with respect to the bottom plate, so as to face each other upon final assembly of the packing box into a box shape; a pair of second side plates arranged so as to extend in a substantially co-planar manner from opposed edges of the bottom plate, and adapted to be bent with respect to the bottom plate, so as to face each other upon final assembly of the packing box into a box shape; and a pair of flaps provided at both sides of each of the proximate end and distal end first side plates, arranged so as to extend in a substantially co-planar manner from the first side plates, and adapted to be bent with respect to the proximate end and distal end first side plates upon final assembly of the packing box into a box shape, a pair of reinforcing flaps provided on an edge that is perpendicular to both sides of each of the proximate end and distal end first side plates, arranged so as to extend in a substantially co-planar manner from the first side plates, and adapted to be bent with respect to the proximate end and distal end first side plates upon final assembly of the packing box into a box shape, wherein each of the flaps includes a first flap portion connected to the proximate end and distal end first side plates and a second flap portion connected to the first flap portion, bent with respect to the first flap portion and affixed to one of the second side plates such that the first flap portion forms a ledge along a top edge of each of the pair of second side plates substantially parallel to the bottom plate for supporting each end of the pair of reinforcing flaps and, where the first flap portion, the proximate end and the distal end first side plates, each of the pair of reinforcing flaps and the second flap portion after being affixed to one of the second side plates, are all substantially co-planar before being bent upon final assembly of the packing box into a box shape.