Patent ID: 7022059
Filing Date: 2006-04-04
Classification: B65H

Abstract:
1. A chopper folder for a rotary press for folding signatures which are periodically conveyed, one signature at a time, from a folding machine, comprising: a pair of folding rollers for folding a signature parallel to a conveyance direction of said signatures; a prime mover; a crank arm fixed to an output shaft of the prime mover to be rotated together with the output shaft; a blade holder connected to the crank arm via a link; a chopper blade held in the blade holder and adapted to push the signature from an upper surface thereof in order to insert the signature into a space between the pair of folding rollers; and at least one guide unit with at least a linear guide rail connected to a linear slider wherein the linear slider is connected to the blade holder for restricting motion of the blade holder such that the blade holder reciprocates only in a linear direction perpendicular to a conveyance plane along which the signature is conveyed.