US 12,004,453 B2
Draper head with securing action for a height-adjustable reel
Steffen Sudhues, Ahlen (DE); and Michael Pokriefke, Hude (DE)
Assigned to Carl Geringhoff GmbH & Co. KG, Ahlen (DE)
Filed by Carl Geringhoff GmbH & Co. KG, Ahlen (DE)
Filed on Oct. 7, 2020, as Appl. No. 17/064,611.
Claims priority of application No. 10 2019 127 508.3 (DE), filed on Oct. 11, 2019.
Prior Publication US 2021/0105944 A1, Apr. 15, 2021
Int. Cl. A01D 57/04 (2006.01); A01B 63/00 (2006.01); A01D 34/24 (2006.01); A01D 41/127 (2006.01); A01D 41/14 (2006.01); A01D 57/20 (2006.01); A01D 69/00 (2006.01); F16H 61/4061 (2010.01); F16H 61/4139 (2010.01)
CPC A01D 57/04 (2013.01) [A01B 63/002 (2013.01); A01D 34/246 (2013.01); A01D 41/1274 (2013.01); A01D 41/141 (2013.01); A01D 57/20 (2013.01); A01D 69/005 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/30505 (2013.01); F15B 2211/3052 (2013.01); F15B 2211/5059 (2013.01); F15B 2211/6336 (2013.01); F15B 2211/7128 (2013.01); F15B 2211/7135 (2013.01); F15B 2211/7142 (2013.01); F15B 2211/8633 (2013.01); F16H 61/4061 (2013.01); F16H 61/4139 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A harvester comprising:
a draper head comprising:
a frame extending substantially across a working width of the draper head;
cutting elements arranged at a front side of the draper head and connected to the frame:
conveying surfaces and conveying members configured to transport cut crop from the cutting elements to a discharge location of the draper head;
a reel extending transversely to a working direction of the draper head across the working width of the draper head;
reel support arms pivotably supported on the frame and supporting the reel;
a hydraulic adjusting drive operatively connected to the reel support arms to pivot the reel support arms to carry out a height adjustment of the reel;
a hydraulic circuit operatively connected to the hydraulic adjusting drive and comprising a hydraulic valve configured to lock the hydraulic circuit, wherein the hydraulic valve is an electrically controlled hydraulic valve connected to an electric circuit;
an electronic control unit configured to control operations of the harvester and/or the draper head;
a safety switch connected to the electric circuit, wherein the safety switch is a component separate from the electronic control unit and is arranged at the draper head or at a component of the harvester;
wherein the safety switch, when actuated, separates the hydraulic valve from a current supply of the electric circuit to lock the hydraulic circuit.