US Patent 11246259 Locking assembly for agricultural combine harvesting head

A harvesting head for an agricultural combine includes a frame and a support arm coupled to the frame. The support arm is configured to move between an unlocked state in which the support arm is moveable relative to the frame and a locked state in which the support arm is fixed relative to the frame. The harvesting head includes cutting teeth supported by the support arm relative to the frame. The cutting teeth are configured to move relative to the support arm in a reciprocating motion along a longitudinal axis of the frame. The harvesting head includes a gauge member coupled to the frame. The gauge member is configured to sense a height of the frame relative to a surface. The harvesting head includes a control assembly configured to move the support arm into the locked state based on the height of the frame relative to the surface.