Back to results
US 4,177,625 AGranted
Pull-type agricultural machine
AssigneeSperry Rand Corporation
InventorsAndrew C. Knight, Nigel W. Meek
Life of this patent
Estimating the term…
Abstract
The present invention relates to pull-type harvesting machines such as mower-conditioners and comprises a main frame fitted with ground-engaging wheels, a header adjustably mounted on and forwardly of the main frame and comprising drum type mower units, lifting means operable to move the main frame relative to the ground and the header relative to the main frame and an arched drawbar pivotally attached to the main frame and pivotable over the header from a machine operative position to a machine transport position and vice versa.
Claims9
A harvesting machine comprising:
- an inverted generally U-shaped main frame having an upper transverse beam and depending legs attached to the respective ends of said beam;
- a crop harvesting header adjustably carried on and extending forwardly of said main frame, said header having drum type cutter means for severing crop to initiate the harvesting process;
- upper and lower link means for pivotally connecting said header to said main frame, said lower link means being pivotally connected to the respective legs of said main frame;
- wheel arms pivotally adjustably attached to and extending rearwardly of said legs of said main frame, said wheel arms having arcuate hardened members for engaging said lower link means;
- ground engaging wheels mounted on the respective wheel arms for carrying the machine over the ground;
- resilient means disposed between said header and said main frame for floatingly supporting said header from said main frame;
- lifting means operable to pivot said wheel arms and said upper and lower link means for moving said main frame relative to the ground and said header relative to said main frame;
- and
- arched drawbar means pivotally attached to said main frame pivotable over said header for moving said machine between operating and transport positions.
6 more elements
A harvesting machine comprising:
- a mobile frame adapted for movement across the field, said frame having an upper transverse beam and legs projecting downwardly from the respective ends of said upper beam;
- a crop harvesting header movably affixed forward of said frame, said header including a plurality of drum type cutter means for severing the crop from the ground and an elongated rotary crop conditioning means rearward of said drum type cutter means for conditioning the severed crop;
- a header suspension means for floatingly supporting said header from said frame, said suspension means including a spring-like means disposed between said header and said frame for floatingly supporting said header and upper and lower link means for pivotably interconnecting said header and said frame, said lower link means being pivotally connected to the respective legs of said frame;
- an arched drawbar pivotally attached to said frame and being pivotable over said header to move said machine between an operative position and a transport position;
- lifting means operable with said lower link means for moving said frame relative to the ground and said header relative to said frame such that the distance between the header and the ground when the header is in the raised transport position is greater than the distance between the header and arched drawbar when the header is in the lowered operative position;
- and
- drive means for rotating said drum type cutter means and said conditioning means, said drive means including a power input means for receiving rotary driving power from a prime mover, said power input means being rotatably journalled in and supported by said arched drawbar such that said power input means is at least partially substantially horizontal.
4 more elements
Dependencies are inferred from the claim text.