Screening for a threshing machine, in particular for a combine harvester for harvesting cereals

Screening for a threshing machine, especially a combine harvester for harvesting fruits containing crop that provides a conveying direction (6) for containing the harvested crop straw and chaff fraction with a screen surface (12), - the extending out transversely to the conveying direction (6) and in the conveying direction (6) adjoining profiles (14, 14a, 14b, 14c) is constructed, - wherein each section (14, 14a, 14b, 14c) comprises a first leg (16), a second leg (18) and a connecting leg (25) and the first leg (16) and the connecting leg (25) in a sectional plane parallel to the conveying direction (6) from the ends of the second leg (18) oppositely angled protrude and extend parallel to each other, - wherein the first leg (16) of the profiles (14, 14a, 14b, 14c) is arranged located at the front in the conveying direction (6) and to a first imaginary plane (15) an angle (17) includes, which is smaller than a second angle (20) to the second leg ...