Maize header for a forage harvester, and forage harvester comprising such a maize header

A maize header (2) for a forage harvester (1) for harvesting stalk crops,

• comprising multiple mowing and infeed units (10) each having multiple drum-like or chain-like mowing and infeed members (11) which can be rotated about a vertical or approximately vertical axis of rotation (22), can be driven in revolution, and are intended for severing the crop in a substantially horizontal direction from a field that is to be cultivated,
• wherein, in the working position of the maize header (2), as seen transversely to the harvesting direction, first lateral mowing and infeed units (10b) are arranged laterally next to central mowing and infeed units (10a), second lateral mowing and infeed units (10c) are arranged laterally next to the first lateral mowing and infeed units (10b), and third lateral mowing and infeed units (10d) are arranged laterally next to the second lateral mowing and infeed units (10c),
• wherein, to transfer the maize header (2) between the working position and a transport position, the multiple mowing and infeed units (10) are pivotable relative to one another about horizontal or approximately horizontal pivot axes (16) in such a way that each of the first lateral mowing and infeed units (10b) is pivotable about a first pivot axis (16a) relative to the respective adjoining central mowing and infeed unit (10a), that each of the second lateral mowing and infeed units (10c) is pivotable about a second pivot axis (16b) relative to the respective adjoining first lateral mowing and infeed unit (10b), and that each of the third lateral mowing and infeed units (10d) is pivotable about a third pivot axis (16c) relative to the respective adjoining second lateral mowing and infeed unit (10c),
• wherein, when the maize header (2) is being transferred between the working position and the transport position, a pivot angle (α1) about the first pivot axes (16a) is 164°±4°, and a pivot angle (α2) about the second pivot axes (16b) is 180°±4°, and a pivot angle (α3) about the third pivot axes (16c) is 184°±4°;
• and
• wherein as seen in the harvesting direction, feeding drums (12) and turning drums (14, 15) that can be rotated about a vertical or approximately vertical axis are arranged behind the mowing and infeed units (10), in such a way that, in the working position of the maize header (2), as seen in the harvesting direction,
• a respective feeding drum (12) is arranged behind each of the two central mowing and infeed units (10a),
• a respective first turning drum (14) is arranged behind a transfer region between each of the central mowing and infeed units (10a) and the first lateral mowing and infeed unit (10b) that is arranged laterally directly next to it,
• a second turning drum (15) is arranged behind a transfer region between each of the first lateral mowing and infeed units (10b) and the second lateral mowing and infeed unit (10c) that is arranged laterally next to it,
• wherein, to transfer the maize header (2) between the working position and the transport position, each of the first lateral mowing and infeed units (10b) together with one of the first turning drums (14) is pivotable relative to the respective adjoining central mowing and infeed unit (10a) and each of the second lateral mowing and infeed units (10c) together with one of the second turning drums (15) is pivotable relative to the respective adjoining first mowing and infeed unit (10b)
• a cone angle of a frustoconical envelope of the respective first turning drum (14) is matched to the first pivot angle (α1) of the respective first lateral mowing and infeed unit (10b) in such a way that, in the transport position of the maize header (2), a laterally outer side or a laterally outer edge of the frustoconical envelope extends parallel or approximately parallel to a vertically extending straight line or plane (17, 18) that delimits a permissible transport width of the maize header (2) on one side, and
• a cone angle of a frustoconical envelope of the respective second turning drum (15) is matched to the second pivot angle (α2) of the respective second lateral mowing and infeed unit (10c) in such a way that, in the transport position of the maize header (2), a laterally inner side or a laterally inner edge of the frustoconical envelope extends parallel or approximately parallel to a center line or center plane that extends centrally between the two straight lines or planes (17, 18) defining the permissible transport width of the maize header.