US 11,985,919 B2
Forage harvester adjustment apparatus
Wilhelm Tschirdewahn, Marktoberdorf (DE); Markus Uhl, Marktoberdorf (DE); and Burkhard Freiburg-Neuhaus, Marktoberdorf (DE)
Assigned to AGCO International GmbH, Neuhausen (CH)
Filed by AGCO International GmbH, Neuhausen (CH)
Filed on May 28, 2021, as Appl. No. 17/334,096.
Claims priority of application No. 2007962 (GB), filed on May 28, 2020.
Prior Publication US 2021/0368682 A1, Dec. 2, 2021
Int. Cl. A01D 43/08 (2006.01); A01F 29/06 (2006.01); A01F 29/09 (2010.01); A01F 29/22 (2006.01); B02C 18/18 (2006.01); B26D 7/26 (2006.01)
CPC A01D 43/08 (2013.01) [A01F 29/06 (2013.01); A01F 29/095 (2013.01); A01F 29/22 (2013.01); B02C 18/186 (2013.01); B26D 7/2614 (2013.01); B26D 7/2628 (2013.01); Y10T 29/4984 (2015.01); Y10T 29/49924 (2015.01)] 17 Claims
OG exemplary drawing
 
1. An adjustment apparatus for use with a forage harvester, in which a shear bar is adjustably mounted on a housing, a chopper drum is supported by the housing and mounted for rotation about a rotational axis and comprises a plurality of circumferentially spaced knife supports for adjustably securing at least one chopper knife, wherein the chopper knives cooperate with the shear bar to chop incoming crop, the adjustment apparatus comprising:
a lateral element;
at least one location element configured for mating engagement with a receiving surface of the forage harvester for locating the lateral element with respect to the chopper drum; and
at least one radially inwardly directed guide surface on the lateral element, wherein each of the at least one guide surfaces is configured to align with an outer path of an unworn chopper knife on the chopper drum.