Row finder for a harvesting unit

Details Row finder for a harvesting unit Row finder for a harvesting unit

1998-10-23

2000-06-27

Pezzuto, Robert E.

Harvesters

Motorized harvester

With condition-responsive operation

56 28, 56 155, 56DIG11, 172 2, 172 5, A01D 7528

Patent

active

060791926

ABSTRACT:
A row alignment system includes a plurality of row units mounted on the lift frame at the front of a harvester. One or more of the row units are transversely adjustable on the frame for alignment with the guess rows. One of the adjustable row units includes a mechanical feeler which moves in response to changes in alignment between the plant passage on the row unit and the row of crop being harvested by that row unit. A linkage connects the feeler directly to the spool of a three-position, four-way valve supported on the row unit closely adjacent the feeler. Movement of the feeler in response to row misalignment operates the valve to selectively extend or retract a cylinder to move the units to maintain the desired crop row/plant passage alignment. A manually operated valve assembly facilitates easy manual operation of the row units and permits the row units to be locked in a preselected position. When two or more transversely adjustable row units are controlled, the units are tied together with a bracket, and the cylinder is connected to the bracket.

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