Patent ID: 8066275
Filing Date: 2011-11-29
Classification: B65B,B65H

Abstract:
1. A method for advancement of packaging blanks comprising: positioning packaging blanks upright in a magazine, one after another other, in a file or queue resting with one edge portion against a bottom of the magazine, the file or queue of blanks being divided into a first pressure zone and a second pressure zone, the first pressure zone extending in a forward direction from a zone limit between the first and second pressure zones up to a stop located at an outlet at a forward end of the magazine, and the second pressure zone positioned rearwardly of the first pressure zone; applying a second pushing force to the blanks in the second pressure zone to display a second mutual pressure between neighboring blanks in the second pressure zone and push the blanks in the second pressure zone in the forward direction; and applying a first pushing force, independent of the second pushing force, to the blanks in the first pressure zone to display a first mutual pressure between neighboring blanks in the first pressure zone and push the blanks in the first pressure zone to move the entirety of each of the blanks in the forward direction, the first mutual pressure being higher than the second mutual pressure, and the first pushing force, independent of the second pushing force, applied to the blanks in the first pressure zone continuously pushing a leading blank at the forward end of the first pressure zone into contact with the stop.