Patent ID: 7588090
Filing Date: 2009-09-15
Classification: A01B

Abstract:
1. Device for fixing blades to support plates mounted transversely on a rotary shaft and being rotationally integral therewith, the blades projecting beyond the plates, wherein each plate has at least one cut-out made in a flank of the plate opening out laterally at the periphery of the plate and shaped to receive in an interlocking manner and to radially retain a complementary flat part of a blade support foot so that a outside lateral face of the flat part of the blade support foot is flush with a corresponding outer face of the flank of the plate, and wherein the plates are mounted in a line on the rotary shaft and tightened axially and jointly against each other by axial tightening means allowing a flank of a plate positioned adjacent to another flank of another plate, each of which has at least one cut-out, to be forced against each other and against the flat parts of the blade support feet of the blades to completely lock the support feet in their respective cut-outs.