Screening belt unit for a harvesting machine, and corresponding flap unit

A screening belt unit for a harvesting machine or harvested material transportation device for screening extraneous material out of a mixture of harvested material and extraneous material, the screening belt unit comprising:

• a screening belt having at least two endless carriers between which screening bars are arranged in a direction transversely to a conveying direction F,
• said screening bars forming a plurality of screening bar units that comprise in each case at least two screening bars, wherein at least a part of the screening bars is fixed so as to be movable relative to the endless carriers;
• and
• a positioning means arranged at least locally along the screening belt and acting on the movable screening bars and via which, in a screening zone S, as seen in the screening direction a spacing A in the conveying direction F of successive screening bars is defined and settable in a variable manner;
• wherein at least one joint part is fixed releasably to a said screening bar of a said screening bar unit, wherein the joint part or the screening bar has an outer surface configured to rest on the positioning means, wherein the joint part is configured such that the said screening bar is pivotable up by an angle (W) of at least 30° from a center position, wherein in the center position a longitudinal center axis of the said screening bar is arranged in the same plane as longitudinal center axes of an adjacent screening bar upstream or downstream of the said screening bar in the conveying direction F, said adjacent screening bar being non-pivotable.