US 11,937,547 B2
Attachment for harvesting stalk-like stem crops with meshing picking rotors
Frank Schlamann, Gronau (DE)
Assigned to Carl Geringhoff GmbH & Co. KG, Ahlen (DE)
Appl. No. 17/265,526
Filed by Carl Geringhoff GmbH & Co. KG, Ahlen (DE)
PCT Filed Jul. 1, 2019, PCT No. PCT/EP2019/067610
§ 371(c)(1), (2) Date Feb. 3, 2021,
PCT Pub. No. WO2020/025236, PCT Pub. Date Feb. 6, 2020.
Claims priority of application No. 10 2018 118 958.3 (DE), filed on Aug. 3, 2018.
Prior Publication US 2021/0289705 A1, Sep. 23, 2021
Int. Cl. A01D 45/02 (2006.01); A01D 46/00 (2006.01)
CPC A01D 46/00 (2013.01) [A01D 45/025 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An attachment for mounting on a harvesting machine, the attachment comprising:
picking devices arranged adjacent to one another and distributed over a working width of the attachment;
the picking devices each comprising:
a first picking plate and a second picking plate delimiting between them a picking gap;
a first picking rotor arranged underneath the first picking plate and a second picking rotor arranged underneath the second picking plate, wherein the first and second picking rotors are configured to be driven in rotation in opposite rotational directions relative to each other;
wherein the first picking rotor comprises first intake bodies provided with radially protruding first intake edges, wherein the radially protruding first intake edges comprise a first enveloping circle;
wherein the second picking rotor comprises second intake bodies provided with radially protruding second intake edges, wherein the radially protruding second intake edges comprise a second enveloping circle, wherein the first and second enveloping circles mesh with one another;
wherein the radially protruding first intake edges of the first picking rotor delimit between them first intermediate spaces located within the first enveloping circle, wherein the first intermediate spaces extend along a longitudinal direction of the first picking rotor and wherein the radially protruding second intake edges of the second picking rotor plunge into the first intermediate spaces when the first and second picking rotors rotate;
wherein the radially protruding first intake edges of the first picking rotor and the radially protruding second intake edges of the second picking rotor are arranged in relation to one another so that, when the first and second picking rotors rotate, two adjacently positioned radially protruding first intake edges of the first picking rotor
temporarily hold a plant stalk, moving in a downwardly oriented trajectory through the first and second picking rotors, by pressing the plant stalk against the radially protruding second intake edges of the second picking rotor that are trailing and leading in relation to the two adjacently positioned radially protruding first intake edges of the first picking rotor, and
temporarily clamp the plant stalk in an arc shape approximating the first enveloping circle of the first picking rotor by four contact points of the plant stalk on the two adjacently positioned radially protruding first intake edges of the first picking rotor and on said radially protruding second intake edges of the second picking rotor that are trailing and leading;
wherein a cutter blade is arranged on the second picking rotor between said radially protruding second intake edges of the second picking rotor that are trailing and leading and cuts into an outside of the plant stalk clamped in the arc shape.