Patent ID: 7404281
Filing Date: 2008-07-29
Classification: B31D,B65B

Abstract:
1. A method of manufacturing a cushioning package containing an article to be packaged, said method comprising the steps of: feeding a cushioning sheet made of flexible resin sheets that are placed one on another along a longitudinal direction of the cushioning sheet, 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 along a crease crossing said small cells, the crease being transverse to a longitudinal direction of the small cells, the article storage 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; the aforementioned steps of forming, disposing and closing being performed in the recited order, wherein said step of forming is comprised of folding the cushioning sheet in the longitudinal direction and adhering edges of the overlapped cushioning sheet, except for a portion of the edges that becomes an article storage opening, said step of adhering further comprising the steps of: said step of disposing is comprised of moving the article along the longitudinal direction of the cushioning sheet, and placing the article inside the article storage space, and said step of closing is comprised of disposing a tip of a nozzle inside the air passage along the longitudinal direction of the cushioning sheet and filling air in each of the small cells via the air passage through the nozzle.