Triangular packaging case for packing of oblong object e.g. certification format poster, has lug including lug precut that is provided with folding, and flap wall folded on lug wall to close circle of periphery of reinforced end piece

摘要

The case (1) has a pre-cut cardboard covered sheet formed with a set of foldings, which delimits a lug wall (11), two lateral walls (12, 13) and a flap wall (14), when the lug wall comprises lugs (5) at two ends and forms an reinforced end piece after a folding and locking cooperation with the lateral walls. The lug includes a lug precut that is provided with a folding that delimits a stopper and a maintenance surface for maintaining the stopper against the lug and the lateral walls. The flap wall is folded on the lug wall to close a circle of periphery of the reinforced end piece.