초록 ▼

A header height/lateral float control mechanism for a crop harvesting header mounted on a combine base unit for movement in a generally vertical direction and for rotational movement in a generally vertical plane to permit the header to follow changes in the ground contour is disclosed wherein a hei

A header height/lateral float control mechanism for a crop harvesting header mounted on a combine base unit for movement in a generally vertical direction and for rotational movement in a generally vertical plane to permit the header to follow changes in the ground contour is disclosed wherein a height sensor bar is rotatably supported along substantially the entire transverse width of the header and first and second tilt sensors are mounted adjacent the transversely spaced header sidewalls. The control mechanism is operatively associated with the tilt sensors and the height sensor such that the header lift mechanism is operated whenever the height sensor is actuated and the mechanism for rotatably tilting the header can be actuated only when the tilt sensors indicate different relative ground changes. The control mechanism further includes electrically actuated switches that are interconnected to prevent actuation of the header tilt mechanism whenever both tilt sensors register identical ground contour changes.

대표청구항 ▼

A mechanism for controlling the movements of a crop harvesting header mounted on a harvesting machine to permit said header to follow changes in ground contour, said header being operably associated with header lift means for powering a generally vertically movement relative to said harvesting machi

A mechanism for controlling the movements of a crop harvesting header mounted on a harvesting machine to permit said header to follow changes in ground contour, said header being operably associated with header lift means for powering a generally vertically movement relative to said harvesting machine and with a header tilt means for powering a transverse tilting movement of said header relative to said harvesting machine, comprising: a height sensor having a sensor bar rotatably mounted on said header and extending between transversely spaced ends of said header, said sensor bar having a plurality of fingers movable with the changes in ground contour relative to the header to cause rotation of said sensor bar; first and second tilt sensors connected to the ground engaging members adjacent the transverse ends of said header, respectively, said tilt sensors being movable with the corresponding ground engaging member with changes in the ground contour relative to said header; and control means operably interconnecting said sensors and said header lift means and said header tilt means to actuate said header lift means and said header tilt means in response to the sensing of changes in ground contour relative to said header by said sensors, said first and second tilt sensors being connected in series such that said header tilt means is not actuated unless said first and second tilt sensors are in different positions.