US 11,925,144 B2
Mower conditioner impeller hood actuating mechanism
Zachary J. Lyle, Keota, IA (US); and Thomas A. Nichols, Eldon, IA (US)
Assigned to DEERE & COMPANY, Moline, IL (US)
Filed by DEERE & COMPANY, Moline, IL (US)
Filed on Jan. 22, 2021, as Appl. No. 17/155,146.
Prior Publication US 2022/0232776 A1, Jul. 28, 2022
Int. Cl. A01D 57/26 (2006.01); A01D 34/66 (2006.01); A01D 41/06 (2006.01); A01D 43/10 (2006.01); A01D 57/24 (2006.01); A01D 82/00 (2006.01)
CPC A01D 82/00 (2013.01) [A01D 34/667 (2013.01); A01D 41/06 (2013.01); A01D 43/10 (2013.01); A01D 43/102 (2013.01); A01D 57/24 (2013.01); A01D 57/26 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A harvesting apparatus for an agricultural machine, the harvesting apparatus comprising:
a frame;
a cutting mechanism coupled to the frame and operable to cut crop material;
a crop conditioning element coupled to the frame;
a hood moveable relative to the crop conditioning element, the hood including a first lift connection and a second lift connection;
an actuating system moveably connecting the hood to the frame, the actuating system including:
a driven lever arm rotatably attached to the frame for rotation about a lever rotation axis, the driven lever arm including a first lever connection and a second lever connection positioned opposite each other across the lever rotation axis;
a first pivot assembly rotatably attached to the frame at a first pivot axis for rotation about the first pivot axis, the first pivot assembly including a first pivot connection offset from the first pivot axis and coupled to the first lever connection of the driven lever arm, and a second pivot connection offset from the first pivot axis and coupled to the first lift connection of the hood;
a second pivot assembly rotatably attached to the frame at a second pivot axis for rotation about the second pivot axis, the second pivot assembly including a third pivot connection offset from the second pivot axis and coupled to the second lever connection of the driven lever arm, and a fourth pivot connection offset from the second pivot axis and coupled to the second lift connection of the hood; and
wherein the first pivot axis and the second pivot axis are spaced apart from each other along a central longitudinal axis of the frame.