Patent ID: 8187158
Filing Date: 2012-05-29
Classification: B65H

Abstract:
1. A paper-folding station, comprising: a frame; a paper-feeder; a first pair of motorized, substantially adjacent rollers, including a first roller and a second roller, supported at a delivery end of the paper-feeder about respective parallel axes to draw sheets of paper from the feeder, one roller of the first pair being mounted on a first support, the first support adjustable in position to change the distance between the rollers of the first pair; a folding buckle arranged to receive a sheet from the first pair of rollers through an inlet mouth, and having a barrier causing the sheets to stop and to bend into the shape of a groove below the inlet mouth; a second pair of motorized, substantially adjacent rollers, including one of said first and second rollers and a third roller, supported near the inlet mouth about respective parallel axes to pinch the groove and to make a transverse fold on the sheet, one roller of the second pair being mounted on a second support adjustable in position to change the distance between the rollers of the second pair, wherein said paper folding station comprises at least one transverse beam coupled to one of said first and second supports so as to follow changes in position of said one of said first and second supports upon adjustment of the distance between the corresponding pair of rollers, said at least one transverse beam being located in a vicinity of the inlet mouth to guide said sheets.