Harvesters – Cutting – Cutter members
Patent
1994-04-28
1995-08-08
Novosad, Stephen J.
Harvesters
Cutting
Cutter members
56 175, A01D 3464, A01D 3473
Patent
active
054388198
ABSTRACT:
A blade assembly for a brush cutting machine. The blade assembly comprises two blades, each blade having a two sided cutting edge on both a first and second ends. The four sided cutting edge blades are rotatable from the first end to the second end and invertible from the upper surface to the lower surface to take advantage of all four cutting edges on each blade. A first blade is attached to the bottom surface of a first end of the crossbar. A second blade is attached to the bottom surface of a second end of the crossbar. The blades are attached to the bottom surface of the crossbar with counter-bored holes in the blades that correspond to counter-bored holes in the crossbar. Counter-bored holes in the bottom surface of the blades recess the head of the attaching bolt so that the top of the head of the attaching bolt is flush with the bottom surface of the blades. Counter-bored holes in the crossbar allow the attaching bolt to have a graduated diameter such that a large diameter bolt is used for a secure attachment of the blades to the crossbar, while allowing a small diameter bolt to receive a conventionally sized nut at the top of the crossbar. The blades of the present blade assembly have a re-cuttable bevel to provide a resharpenable cutting edge. A second embodiment provides offsets on the crossbar for positioning the blades closer to the ground for a closer cut of brush. A method for cutting brush with a brush cutting machine having the present blade assembly is also disclosed.
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