Abstract: Drive mechanism for an apparatus for laying an in particular unfolded fibrous material web, in particular a paper web or a corrugated paper web, like a corrugated cardboard web, in a Leporello fold, comprising a pair of opposing rollers that form a passage gap for the fibrous material web and respectively define a rotational axis around which said rollers rotate, in particular when the fibrous material web passes through the passage gap, characterised by a rotational axial roller drive that rotationally drives at least one of the two rollers for delivering the fibrous material web through the passage gap to form the Leporello stacking, and a pivot drive that has in particular a pendulum axis not coinciding with the rotational axes, wherein the at least two rollers are pivot-mounted such that the rotational axes can be pivoted back and forth about the common pendulum axis.