| 主权项 |
1. A harvesting header comprising:
a set of centrally disposed conditioner rolls comprising conditioning structure to condition crop; a rotary cutter bed comprising:
a plurality of rotary cutters extending across the path of travel of the header to define a cutting plane, each cutter being rotatable about an upright axis, the conditioner rolls being behind the cutter bed to condition crop cut by the rotary cutter bed, wherein the plurality of rotary cutters comprises a set of inboard cutters disposed inboard of the lateral limits of the conditioning structure on conditioner rolls and a set of outboard cutters on either side of the conditioner rolls disposed outboard of the conditioning structure on conditioner rolls, wherein the set of outboard cutters on each side of the cutter bed comprises an outermost outboard cutter and a second outboard cutter adjacent the outermost outboard cutter,an outer impeller fixed to the outermost outboard cutter for rotation therewith to convey cut crop material laterally inwardly toward the center of the header, the outer impeller having a lower disc member forming the bottom of an impeller cage and an upper stationary grass ring;an intermediate impeller located between the axes of rotation of said two outboard cutters, wherein the intermediate cage-like impeller is suspended on the harvesting header above the cutting plane and not fixed to any of the cutters and rotates in the same direction as the outboard impeller; anda crop conveying element fixed to the second outboard cutter for rotation therewith, the crop conveying element comprising at least one slinger attached to an upstanding spacer to space the slinger apart from a top wall of the second outboard cutter, wherein the slinger comprises a flat disc with a plurality of lobes extending outwardly from a central portion thereof and wherein the spacer is shorter than impeller such that a top extremity of the slinger is spaced below an upper level of the outer impeller, and wherein the spacer is smaller in diameter than the outer impeller so as to provide a space below the slinger allow flow of the crop material over the second outboard cutter, said space between the top wall of the cutter and the slinger being at least half of the height between the lower disc and upper stationary grass ring of the outer impeller. |
