Patent ID: 6378621
Filing Date: 2002-04-30
Classification: A01B

Abstract:
An agricultural implement frame comprising:a main frame having a forwardly extending hitch and supporting wheels; a lift tube extending upwardly from the main frame, the lift tube having a main support tube and a corrosion resistant sleeve encasing the main support tube, the main support tube is provided with a plurality of vertically extending planar surfaces, the sleeve is provided with a plurality of plates that correspond to the planar surfaces of the main tube, the plates have an exterior surface and an interior surface, the planar surfaces of the main support tube adjoining the interior surface of the corresponding plate, a first plate is provided with an overhang that extends beyond the exterior surface of a second plate, the second plate being adjacent to the first plate, a fillet weld between the overhang of the first plate and the second plate secures the first plate to the second plate; a carrier frame slidably mounted on the lift tube, the carrier frame can be pivoted on a vertical pivot between a longitudinal transport position and a transverse working position.