Patent ID: 7220223
Filing Date: 2007-05-22
Classification: B41F,B65H

Abstract:
1. A folding apparatus in a printing press for folding a printed product, comprising: first and second folding rolls oppositely disposed for folding the printed product, the folding rolls being mounted on respective bearing levers and coming in contact with the printed product; a folding drum for introducing the printed product into a position between the folding rolls; a spring for pulling together the bearing levers of the folding rolls, the folding rolls being in contact before the printed product is introduced therebetween and being separated when the printed product is introduced therebetween; a controller generating control signals for pre-setting the positions of the first and second rolls; and first and second measuring heads disposed to measure respective positions of the bearing levers of the first and second folding rolls, wherein the measuring heads measure relative positions of the bearing levers with and without the printed product between the first and second rolls, and wherein the controller generates the control signals for presetting positions of the first and second rolls based on a difference between the measured relative positions.