US Patent No: 4,473,993

Number of patents in Portfolio can not be more than 2000

Cutting angle adjustment mechanism for crop harvesting machines

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A mechanism for changing the cutting angle of the cutterbar on a crop harvestng machine, such as a mower-conditioner or windrower, relative to the ground is disclosed wherein the cutting angle can be changed while the harvesting machine is being operated. This on-the-go adjustment mechanism includes a hydraulic cylinder positioned as the top link between the frame of the harvesting machine and the header in which the cutterbar is mounted. Changes in the length of the hydraulic cylinder affect a pivotal movement of the header about the lower links interconnecting the frame and the header to change the angle of the cutterbar relative to the ground. By connecting the cutting angle adjustment cylinder to the hydraulic circuit for the header lift cylinders and by sizing the bore of the angling cylinder such that its stroke is activated prior to activation of the lift cylinders, the cutterbar cutting angle can be varied from the operator's seat through manipulation of the hydraulic control lever for the header lift system while the machine is in motion cutting crop. An adjustment bracket is provided with various stop settings to control the range of the adjustment of the cutting angle obtainable through manipulation of the angling cylinder.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BLUE LEAF I.P., INC.NEW HOLLAND, PA2425

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harer, Delmar C New Holland, PA 1 36
Jennings, Richard E Garland, TX 33 298

Cited Art

Patent Info (Count) # Cites Year
 
PIETRO LAVERDA S.P.A. (1)
4,212,144 Machine for cutting and conditioning forage 7 1979

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
AGCO CORPORATION (16)
4,546,599 Roll opener for a mower conditioner 13 1984
6,679,042 Infeed cutter baler having increased throughput 13 2002
7,921,627 Interlocking belt guards for a draper header 0 2008
7,886,511 Draper head with flexible cutterbar having rigid center section 0 2008
7,802,417 Combine harvester draper header central auger transition floor pan 4 2009
7,913,481 Adjustable cutterbar travel range for a flexible cutterbar header 1 2009
7,827,773 Center crop deflector for draper header 3 2009
7,874,132 Header height control system with multiple potentiometer input 0 2009
7,886,512 Draper belt interlocking guards 2 2009
7,877,976 Spring flotation for center deck of draper header 3 2009
7,827,775 Flexible draper and cutter bar having shiftable crop divider with deflector 2 2009
7,926,248 Combine harvester draper header having flexible cutterbar 2 2009
7,836,671 Flexible draper and cutter bar with tilt arm for cutterbar drive 1 2009
7,937,920 Combine harvester draper header having flexible cutterbar 3 2009
8,205,421 Belt guard crop dam for flexible draper header 0 2010
7,958,711 Crop deflector for ends of draper belt of flexible draper header 1 2010
 
BLUE LEAF I.P., INC. (9)
4,766,803 Variable stroke hydraulic cylinder control linkage 4 1986
4,742,671 Crop harvesting machine base unit lift mechanism providing auxiliary height boost to crop gathering attachment 9 1987
6,073,431 Self-propelled windrower 11 1998
7,222,474 Ground sensing apparatus for a header of an agricultural harvesting machine 20 2005
7,762,051 System for removal of agricultural header 0 2005
7,603,837 Header height control system and apparatus 4 2006
7,987,656 Header height control system and apparatus 0 2009
7,992,374 Agricultural plant cutting header with fore and aft adjustable flexible cutterbar having automatic preload adjustment 0 2010
8,051,633 Cutterbar adjustment support for a crop harvesting header 3 2010
 
DEERE & COMPANY (2)
4,573,308 Harvesting platform with a floating cutterbar 42 1984
6,058,688 Windrower specialty crop platform having right- and left-hand cantilevered augers located beneath a full-length center-feed auger 12 1998
 
KUHN S.A. (2)
4,719,742 Mowing machine 46 1987
6,345,490 Agricultural machine including a locking mechanism for preventing a double-rod ram from rotating around its longitudinal axis 10 1999
 
ANTONIO CARRARO S.P.A. (1)
6,698,174 Tool lifting apparatus for gardening vehicles, such as lawn mowers or the like 0 2002
 
CLAAS OHG (1)
4,665,685 Cutting trough unit for agricultural machines with flexible cutting mechanism 20 1985
 
CLAAS SELBSTFAHRENDE ERNTEMASCHINEN GMBH (1)
6,843,046 Support wheel assembly for an agricultural implement on an agricultural machine 3 2002
 
CNH AMERICA LLC (1)
6,662,539 Crop harvesting machine with side discharge directed rearward 0 2002
 
GEHL COMPANY (1)
6,076,342 Mechanism for adjusting the height of a cutting mechanism in an agricultural harvester 3 1998
 
LUNDAHL RESEARCH, INC. (1)
5,305,586 Crop processor 6 1992
 
VERMEER MANUFACTURING COMPANY (1)
6,655,118 Suspension system 13 2002