Harvesting machine frame

Abstract From the Canadian patent

Abstract of the Disclosure A self-propelled windrower has a traction unit that includes a generally horizontal subframe in the form of a regular traphezoid, the subframe including transverse front and rear beams and a pair of rearwardly converging side beams connecting the opposite ends of the front and rear beams. The rear beam has a central fore and aft pivot, which carries an oscillating rear axle structure that includes a pair of caster wheels at opposite ends of the axle structure. A pair of drive wheel support housings extend downwardly and forwardly from the opposite ends of the front beam, each housing including a vertical plate that forms the outer housing side wall, the upper end …