Crop comminuting apparatus having vibrating cutting blades
AssigneeNational Research Development Corporation
InventorsWilfred E. Klinner, Andrew C. Knight
Life of this patent
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Abstract
An apparatus for comminuting crop includes a duct through which the crop is fed by a reciprocating piston with the duct having reciprocating knives extending thereacross for cutting the crop. The knives are spring-mounted for movement under crop pressure in the horizontal plane against the returning influence of a compression spring.
Claims9
An apparatus for comminuting cut crop comprising an advancement duct, comminuting means providing a plurality of cutting edges extending along and at least in combination spanning, a cross-sectional dimension of the duct, and advancement means for moving a compressed column of the cut crop along the duct towards the comminuting means, each cutting edge being arranged to cut the column along a cutting plane containing that edge and lying substantially parallel to the direction of crop advancement through the duct, and drive means for vibrating the cutting edges in directions lying substantially parallel to said cross-sectional dimension of the duct with said drive means vibrating alternate ones of said cutting edges in anti-phase relative to the remaining ones of said cutting edges.
A forage harvester apparatus for comminuting cut crop comprising an advancement duct, comminuting means providing a plurality of cutting edges extending along and at least in combination spanning, a cross-sectional dimension of the duct, and advancement means for moving a compressed column of the cut crop along the duct towards the comminuting means, each cutting edge being arranged to cut the column along a cutting plane containing that edge and lying substantially parallel to the direction of crop advancement through the duct, and drive means for vibrating the cutting edges in directions lying substantially parallel to said cross-sectional dimension of the duct with said drive means vibrating alternate ones of said cutting edges in anti-phase relative to the remaining ones of said cutting edges.
Dependencies are inferred from the claim text.