Patent ID: 8490712

Claim:
A push frame for interconnecting an undercarriage of a tractor of a work vehicle and a blade of the work vehicle, the push frame comprising a first push-beam, a second push-beam, a first cross-beam, a second cross-beam, and a center joint, the first and second push-beams spaced apart to be positioned on laterally opposite sides of the undercarriage relative to a fore-aft axis of the push frame, the first and second cross-beams fixed respectively to the first and second push-beams laterally outwardly relative to the fore-aft axis and attached to one another laterally inwardly relative to the fore-aft axis by the center joint allowing relative movement between the first and second cross-beams, wherein each of the first and second cross-beams comprises a top wall, a bottom wall, a tractor-side wall, and a blade-side wall such that the top and bottom walls are fixed and angled relative to the tractor- and blade-side walls with the top and bottom walls spaced apart from one another and the tractor- and blade-side walls spaced apart from one another, each of the first and second cross-beams tapers in height between its top wall and its bottom wall as it extends along its width away from its tractor-side wall toward its blade-side wall, an end of each of the first and second cross-beams is greater in height at the tractor-side wall of that cross-beam than at the blade-side wall of that cross-beam.