PACKING BOX Russian patent published in 2007 - IPC B65D5/00 

FIELD: transportation, showing and storage of pastries and cakes.

SUBSTANCE: proposed packing box has flat bottom 5 in form of rectangle and four-box-forming surfaces 1, 2, 3, 4 connected with bottom. Each box-forming surface is connected by lower part with bottom along corresponding side of said rectangle along bending line 6. Box-forming surfaces 1 and arranged opposite to each other are provided each with semigrip in upper part combined with other semigrip when box is assembled to form grip 7, and it has either two semiprojections in plane of semigrip symmetrically at both sides of semigrip combined with other semiprojections, when box is assembled, to form two common projections (third design version of box) or has no such semiprojections (first and second design versions of box). Moreover, each box-forming surface 1 and 2 is provided with two side stiffening ribs mating by surfaces with third and fourth box-forming surfaces when box is assembled. Each third and fourth box-forming surface, in its turn, is provided with flat member in its upper part and corresponding slot aligned according to boss-slot type, when box is assembled, either with said grip 7 at no said projections, or with corresponding projection, being made either with one extended stiffening rib over its perimeter free from said bending line 6 and mating by its surface, when box is assembled, with first and second box-forming surfaces 1 and 2, or with two side stiffening ribs mating by their surfaces, when box is assembled, with first and second box-forming surfaces 1 and 2.

EFFECT: simple design, provision of adequate rigidity in assembled state.

6 cl, 9 dwg