Patent ID: 6247886
Filing Date: 2001-06-19
Classification: A01D

Abstract:
A pivot mechanism, comprising:a vehicle having a grain container,an unloader tube through which grain from the container passes to unload the container, the unloader tube having a generally upright lower portion operatively connected with the grain container, and an upper portion of the unloader tube is operatively connected with a top portion of the lower portion of the unloader tube, the unloader tube being pivotable about an axis of the lower portion between first and second positions such that in the first position the upper portion extends generally longitudinally and is positioned proximate the vehicle, and in the second position the upper portion extends laterally outwardly from the vehicle,a generally spherical ball member fixed with the unloader tube and positioned above the lower portion and in general alignment with the axis of the lower portion,a bushing member having a generally spherically shaped opening which receives the ball member and allows the ball member to swivel therein about the center of the spherically shaped opening, said bushing member is received within a sleeve member fixed with the vehicle and is slidable up and down within the sleeve member.