Patent ID: 7726488
Filing Date: 2010-06-01
Classification: B65D

Abstract:
1. A shock absorbing device formed by a foldable card board sheet comprising: a rectangular base portion; two wings extending perpendicularly from two opposite edges of the base portion; and two flaps extending perpendicularly from another two opposite edges of the base portion; the wings and the flaps being folded perpendicular to the base portion to enclose a space, wherein two separate slots are defined in the base portion, each wing includes a first sheet extending perpendicularly from an edge of the base portion folded facing the other, the first sheet defines two grooves therein, the slots and the grooves respectively communicate with each other, each flap comprises a connecting flange and a first flange extending from the connecting flange, the connecting flange of the flap is folded parallel to the base portion and the first flange connecting to the connecting flange is folded and inserted into the slots of the base portion and the grooves of the first sheet.