Method and apparatus for fanfolding of continuous webs

Method and device for Leporellofaltung of equidistantly grooved endless webs of foldable material, in particular cardboard, which are advanced at a feed rate. In order to place two track sections on each other, the web is raised in the area or exactly at every second transverse groove of a moving adapted to the feed speed of the web entrainment and forcibly folded by this lifting and by the advance of the web. Subsequently, the prefolded web is stored in the form of the Leporellofaltung.