Front and rear ground sensing for header pitch control
US8881495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2012 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Jan 24, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D41/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A harvesting header and feederhouse for use with a crop harvesting machine has a feederhouse interface at a distal end of the feederhouse and a header frame. The header frame has a top beam, a bottom beam, and first and second vertical main structures connecting the top and bottom beams. The feederhouse interface and the vertical main structures of the header frame are pivotably connected to enable the header frame to pivot with respect to the feederhouse interface. At least one hydraulic ram connects between the feederhouse interface and the header frame to pivot the harvesting header on the feederhouse to a desired fore/aft pitch angle. A hydraulic supply provides hydraulic fluid to the hydraulic ram. Front and rear ground sensors provide an output that is used to control the fore/aft pitch angle of the harvesting header relative the ground by pivoting the header frame relative the feederhouse interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.