Patent ID: 8186497
Filing Date: 2012-05-29
Classification: A01D

Abstract:
1. A suspension system for an unloading conveyor of an agricultural harvester vehicle, the conveyor having one end mounted to the vehicle for permitting the conveyor to be pivoted about a vertical axis among selected horizontal unloading positions and to be pivoted about a horizontal axis among selected vertical unloading positions, comprising: a first support defined by a first variable length hydraulic actuator mounted for selectively moving the conveyor about said horizontal axis to, and for holding the unloading conveyor in a selected vertical unloading position; a second support defined by a second variable length hydraulic actuator mounted for selectively moving the conveyor about said vertical axis to, and for holding the unloading conveyor in a selected horizontal unloading position; and a control circuit coupled to the first and second supports, wherein the control circuit is configured for selectively individually effecting a change in the length of the first and second supports and for selectively coupling at least one gas charged hydraulic accumulator to, or decoupling said at least one gas charged hydraulic accumulator from, one of the first support and the second support to thereby spring-load or remove spring-loading from the unloading conveyor in at least the vertical or the horizontal direction.