Patent ID: 8251216
Filing Date: 2012-08-28
Classification: B65D

Abstract:
1. A gas column structure for a shockproof sleeve, comprising a gas-column sheet, two folding lines and two recessed buffer walls: the gas-column sheet comprising a plurality of gas columns formed and arranged abreast through heat sealing for carrying an article to be protected; the two folding lines each comprising a plurality of folding nodes and such connected to two sides of the gas-column sheet that the folding lines are perpendicular to the gas columns of the gas-column sheet; the two recessed buffer walls each connected to the folding lines, and comprising a plurality of U-shaped members arranged abreast through heat sealing, each U-shaped member comprising three short gas columns and two nodes alternately connected in series, the middle short gas column of each said U-shaped member at a side of each said recessed buffer wall being unfilled, so that four corners of the gas column structure for the shockproof sleeve are protected from being broken when contacting anything sharp, the gas-column sheet and the two recessed buffer walls forming a semi-open accommodating space, the recessed buffer walls being configured to be everted against the folding lines when receiving an external force, so as to allow an article to be placed in the accommodating space and after the external force is removed, the recessed buffer walls automatically return to hold the article in the accommodating space.