Patent ID: 6851484

Claim:
A track-filling apparatus connected to a tractor for smoothing rutted soil formed by the repeated passage of wheels, said apparatus comprising: a frame having a front and a rear, a system for attaching said front of the frame to the tractor, a soil moving blade assembly mounted to said frame, said assembly having laterally disposed left and right blades, said blades further having a spaced apart relationship forming an included blade angle there between, and a system for adjusting said included blade angle by changing said spaced relationship of the left and right blades, said system for adjusting comprising: a tiebar being pivotal on a tiebar pivot point near said rear of the frame, left and right arm systems each comprising a plurality of arm segments pivotally connected to each other, and each of said left and right arm systems having a rear portion pivotally connected to the tiebar and having a front portion near said front of the frame, wherein the left blade is fixed to said left arm system and wherein the right blade is fixed to said right arm system, a blade adjusting hydraulic ram extending between said front portions of the left and right arm systems and adapted to pull said front portions together to move the left and right blade to be generally parallel to each other, and to push said front portions apart to move the left and right blade to said included blade angle relative to each other.