IP Library Granted Patent US 12685254
Granted Patent B2
US 12685254 · App. 18/257,871 · Granted Jul 21, 2026

Misaligned base cutter discs

Inventor: Marcelo Carpenedo (Sapucaia do Sul, RS)
Assignee: AGCO do Brasil Solu{tilde over (c)}öes Agricolas Ltda.
A01D34/661A01D45/10
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Quick Facts
Patent No.
US 12685254
App. No.
18/257,871
Granted
Jul 21, 2026
Kind
B2
Abstract

In one embodiment, a base cutter system, comprising: a first cutter shaft assembly; a second cutter shaft assembly; first and second brackets coupled to the first and second cutter shaft assemblies, respectively; first and second frame portions, the first cutter shaft assembly coupled to the first frame portion via the first bracket and the second cutter shaft assembly coupled to the second frame portion via the second bracket, the first and second cutter shaft assemblies adjustable between a laterally aligned arrangement and a laterally misaligned arrangement based on a relative adjustment of the first and second brackets.

Claims (30)

1 . A base cutter system of a sugarcane harvester, comprising:

a first cutter shaft assembly;

a second cutter shaft assembly;

first and second brackets coupled to the first and second cutter shaft assemblies, respectively; and

first and second frame portions, the first cutter shaft assembly coupled to the first frame portion via the first bracket and the second cutter shaft assembly coupled to the second frame portion via the second bracket, the first and second cutter shaft assemblies adjustable between a laterally aligned arrangement and a laterally misaligned arrangement based on a relative adjustment of the first and second brackets,

wherein in the laterally misaligned arrangement, one of the first cutter shaft assembly and the second cutter shaft assembly is more forwardly positioned than the other relative to a front of the sugarcane harvester.

2 . The base cutter system of claim 1 , wherein in the laterally misaligned arrangement, the first and second cutter shaft assemblies each comprises serrated blades.

3 . The base cutter system of claim 2 , wherein a bottom surface of the serrated blades are at substantially equal heights relative to a level ground surface.

4 . The base cutter system of claim 2 , wherein an outside periphery of each of the serrated blades abut against a longitudinal center line running centrally between the first and second cutter shaft assemblies.

5 . The base cutter system of claim 1 , wherein in the laterally aligned arrangement, the first and second cutter shaft assemblies each comprises knived discs.

6 . The base cutter system of claim 5 , wherein at least a portion of the knived discs of each of the first and second cutter shaft assemblies overlap an area.

7 . The base cutter system of claim 5 , wherein the first and second cutter shaft assemblies are side-by-side relative to a longitudinal center line running centrally between the first and second cutter shaft assemblies.

8 . The base cutter system of claim 1 , wherein the adjustment is performed manually.

9 . The base cutter system of claim 1 , wherein the adjustment is performed via one or more actuators under a motive force.

10 . The base cutter system of claim 1 , further comprising a gearbox assembly, the gearbox assembly operably coupled to shafts of the first and second cutter shaft assemblies.

11 . A base cutter system of a sugarcane harvester, comprising:

a first cutter shaft assembly comprising a first serrated blade; and

a second cutter shaft assembly comprising a second serrated blade, the first and second cutter shaft assemblies arranged in a laterally misaligned arrangement where an outside periphery of each of the first and second serrated blades abut against a longitudinal center line running centrally between the first and second cutter shaft assemblies and one of the first or second cutter shaft assemblies is positioned more forwardly than the other of the first or second cutter shaft assemblies relative to a front of the sugarcane harvester.

12 . The base cutter system of claim 11 , further comprising:

first and second brackets coupled to the first and second cutter shaft assemblies, respectively; and

first and second frame portions, the first cutter shaft assembly coupled to the first frame portion via the first bracket and the second cutter shaft assembly coupled to the second frame portion via the second bracket, the first and second cutter shaft assemblies adjustable between a laterally aligned arrangement and the laterally misaligned arrangement based on a relative adjustment of the first and second brackets.

13 . The base cutter system of claim 12 , wherein the adjustment is performed manually.

14 . The base cutter system of claim 12 , wherein the adjustment is performed via one or more actuators under a motive force.

15 . The base cutter system of claim 11 , wherein a bottom surface of the first and second serrated blades are at substantially equal heights relative to a level ground surface.

16 . The base cutter system of claim 11 , wherein when transitioned to a laterally aligned arrangement, the first and second cutter shaft assemblies each comprises knived discs.

17 . The base cutter system of claim 16 , wherein at least a portion of the knived discs of each of the first and second cutter assemblies overlap an area.

18 . The base cutter system of claim 16 , wherein first and second cutter shaft assemblies are side-by-side relative to a longitudinal center line running centrally between the first and second cutter shaft assemblies.

19 . A base cutter adjustment method for a sugarcane harvester, comprising:

adjusting a first cutter shaft assembly and a second cutter shaft assembly to a misaligned arrangement by adjusting a relative position of the first cutter shaft assembly and the second cutter shaft assembly, wherein in the misaligned arrangement one of the first cutter shaft assembly or the second cutter shaft assembly is more forwardly positioned than the other relative to a front of the sugarcane harvester; and

adjusting the first cutter shaft assembly and the second cutter shaft assembly to an aligned arrangement by adjusting the relative position of the first cutter shaft assembly and the second cutter shaft assembly.