MACHINE AND METHOD FOR INFLATING AND SEALING AIR-FILLED PACKING CUSHIONS

摘要

Machine and method for making air-filled packing cushions from a roll of prefabricated film material (11) having a longitudinally extending inflation channel (19) near one edge of the material and chambers (21, 22) which communicate with the channel (19) through laterally extending passageways (23). The film material is fed from the roll (28) to an inflation tube (52) which extends into the inflation channel, air is introduced into the chambers (21, 22) through the inflation tube (52) to inflate the cushions, and a longitudinally extending seal (89) is formed across the passageways (23) between the channels (19) and the chambers (21, 22) after the cushions are inflated.