ROW SENSING APPARATUS FOR A CROP HARVESTER

摘要

LOCKOUT POSITIONABLE SENSING UNIT FOR ROW CROP HARVESTER GUIDANCE SYSTEM A sensing unit for a row crop harvester guidance system is attachable to the header of a row crop harvester. The header comprises first and second crop dividers. A crop receiving passageway is formed between the dividers. The sensing unit comprises a rotatably mounted crop engaging arm biased into a crop engaging position in which the arm is disposed in the passageway. The arm is movable into a lockout position when reliable operation of the guidance system is not possible because of crop or field conditions.