Headland stop for agricultural planter

Details Headland stop for agricultural planter Headland stop for agricultural planter

A - Human Necessities

01

B

A01B 73/02 (2006.01) A01B 63/14 (2006.01) A01B 63/24 (2006.01) A01B 63/32 (2006.01) A01C 7/08 (2006.01) B60D 1/155 (2006.01)

Patent

CA 2289242

An agricultural planter is provided with hydraulically operated devices to effect the folding and unfolding of the planter support structure between operative and transport configurations. The planter includes a laterally extending tool bar that is pivoted about a transverse axis to forwardly roll the tool bar between a lowered field operating position and a raised transport position. The transverse pivot axis is located such that the first component of the pivotal movement of the tool bar from the field operating position is generally vertical, while a second component of the pivotal movement of the tool bar approaching the transport position is generally horizontal and forwardly of the first component. The headland position corresponds to a position in which the tool bar is raised sufficiently to move the planting units mounted thereon out of the ground to facilitate the turning of the implement at the end of the field. A sensor senses the positioning of the tool bar at the headland position and activates a valve in the hydraulic circuit to stop the operation of the tool bar actuators pivotally rotating the tool bar. A bypass, in the form of a solenoid that when selectively energized will override the signal of the sensor, selectively permits the tool bar to be raised the entire way to the transport position.

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