Patent ID: 6921140

Claim:
A cutter bar for cutting debris away from the track of a track-laying vehicle comprising: a bracket having a mounting flange and a knife flange, the mounting flange and the knife flange each having a plurality of fastener apertures; a knife having a cutting edge and a plurality of fastener apertures corresponding to the fastener apertures of the knife flange of the bracket, the knife being removably fastened to the knife flange of the bracket by a plurality of fasteners that will shear when a pre-selected force is applied to them and the bracket being removably fastened to a vehicle structure such that the cutting edge of the knife is disposed proximal to both a drive wheel of the vehicle and an endless track of the vehicle for cutting debris entrained between the drive wheel and the endless track and a center line of the bracket and knife is disposed at a 45 degree angle to the ground, the center line passing in close proximity to a center axis of the drive wheel of the vehicle, wherein if tough debris contacts the knife the pre-selected force will be overcome and the fasteners will shear permitting the knife yield to the debris.