Patent ID: 7779613
Filing Date: 2010-08-24
Classification: B31D,B65B

Abstract:
1. A method of manufacturing a cushioning package containing an article to be packaged, said method comprising the steps of: using a cushioning sheet made of flexible resin sheets that are placed one on another, heat-sealed and divided into a group of independent small cells in the shape of a strip; forming an article storage space by folding the cushioning sheet at a point that is substantially midway between opposite ends of the small cells in a direction transverse to a longitudinal direction of the small cells along a crease, the space being enveloped by the small cells, and a side of the cushioning sheet opposite to the crease being open; disposing an article to be packaged in the article storage space through an article storage opening that serves as an entry portion of the article storage space; and closing the article storage opening by adhesion while filling air from one side of an end of each of the small cells to inflate the small cells that the crease crosses, whereby the cushioning package so formed includes one outer edge which is folded in a U-shape at the crease and is not closed by adhesion, and another outer edge formed by being closed by adhesion, except for said one outer edge; wherein the steps of forming, disposing, and closing are performed in the recited order.