Dual-pivoted quick bale ejector for round baler

摘要

The present invention relates to a baler ejection system that may be used with an agricultural harvester, such as a round baler, waste baler, combine, or cotton harvester. More particularly, the bale ejection system uses the motion of two pairs of parallel arms that extend transversely from the sidewalls of a bale chamber at two sets of distinct pivot points. When activated by the operator of the bale ejection system, the two pairs of parallel arms raise simultaneously to expose an outlet through which the bale may be ejected. The bale ejection system is designed to allow a larger outlet for the bale evacuation as compared to existing bale ejection systems that employ circular motion to expose the bale outlet. A formed bale may become ejected by one or more conveyer belts that exert a rearward force on the bale within the bale chamber.

主权项

1. A baler comprising:
a bale chamber comprising a first sidewall and a second sidewall; an outlet at the rear of the bale chamber; and a bale carrier, the bale carrier movable among a closed position and one or more open positions, comprising:
a first pair of arms extending transversely from and affixed to a first pair of pivot points on the first and second sidewalls;a second pair of arms extending transversely from and affixed to a second pair of pivot points offset vertically from the corresponding first set of pivot points;one or more fixed members positioned at a distance defined by the length of the first and second pair of arms; and a pair of parallel bars affixed to the one or more fixed members; wherein the bale carrier uncovers the outlet at the rear of the bale chamber through which the bale becomes ejected from the bale chamber when the bale carrier is raised upward into a partially open or fully open position from its closed position; and wherein the first and second pair of arms are pivotally connected to the pair of bars such that the pair of bars rotates with respect to at least one of the first and second pair of arms as the carrier rotates between the fully open and fully closed positions.