Corn harvesting implement for field chopping machine

A corn harvesting implement for a field chopping machine, comprising a drawing-in trough;

• a plurality of transporting passages supported on said drawing-in trough, said transporting passages including at least two outer transporting passages which are foldable upwardly to a transporting position for obtaining a smaller transporting width and foldable downwardly to a working position, said transporting passages also including stationary transporting passages, at least one of said upwardly foldable transporting passages and a neighboring one of said stationary transporting passages being arranged so that in said working position a predetermined distance is provided between at least a part of said at least one of said upwardly foldable transporting passages and at least a part of said neighboring one of said stationary transporting passages;
• and means for increasing said distance at least before a beginning of folding of said upwardly foldable passages from said working position to said transporting position.