Patent ID: 6325266
Filing Date: 2001-12-04
Classification: B41F

Abstract:
An automatic paper-threading device for use in an angle bar section of a rotary press including a paper web supply unit, a press unit, an angle bar section, and a folding unit and having a paper-threading path for paper web formed therein, the angle bar section being disposed in the paper-threading path and comprising a first bar and a second bar disposed in parallel and separated by an appropriate distance, the paper-threading device comprising:a paper leader guide comprising a drive unit for moving along the paper-threading path a paper leader affixed to a leading end portion of paper web; anda tensioner provided in the angle bar section, the tensioner comprising a paper guide which is disposed between the first bar and the second bar to extend in the width direction of the paper web, the paper guide being moved between a standby position where the paper guide does not interfere with the paper-threading path and a projection position where the paper guide projects across the paper-threading path to thereby urge the paper web outward.