Folding device for the double-folding of a sheet

摘要

The folding device comprises a collecting tray (10) provided with adjustable stops (30, 31) between which the sheets for folding fit. In a sheet feed path (6) to the collecting tray (10) there is disposed a measuring wheel (60) which is set into rotation by a supplied sheet and which measures the length of the supplied sheet. On the basis of said measurement, the stops (30, 31) are so adjusted that the centre between the stops corresponds to the place where fixedly disposed folding rollers (11) fold the sheet.