Patent ID: 7703759
Filing Date: 2010-04-27
Classification: B65H

Abstract:
1. An offset sheet feeder configured to provide aligned and horizontally overlapped pairs of first and second sheets for feeding into in an associated box forming apparatus, said offset sheet feeder comprising: first and second stack feeders defining a feed path of the offset sheet feeder, said first stack feeder configured to hold a vertical stack of first sheets and to feed individual ones of the first sheets from the vertical stack of first sheets, and said second stack feeder configured to hold a vertical stack of second sheets and to feed individual ones of the second sheets from the vertical stack of second sheets, said second stack feeder positioned rearward and at a relative lateral offset with respect to the first stack feeder; a control system configured to coordinate feeding and forward transfer of second sheets from the second stack feeder with feeding and forward transfer of first sheets from the first stack feeder, to obtain the aligned and horizontally overlapped pairs of first and second sheets, for feeding into the associated box forming apparatus; and wherein said relative lateral offset of the second stack feeder establishes the amount of horizontal overlap between respective inner edges of the first and second sheets in each aligned and overlapped pair of first and second sheets.