Spring loaded counter knife bank assembly
US8920227B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2013 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Apr 4, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F29/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A counter knife bank assembly of a chopper assembly for an agricultural combine is provided that can pass obstructions without damaging the knife blades of the knife blade assembly. The counter knife bank assembly includes a knife bank and a lever assembly connected to the knife bank. The knife bank is moveable between a first position and a second position relative to a stationary frame of the chopper assembly. The lever assembly includes an extension member having a first end connected to the knife bank, a biasing member connected to the extension member, and an abutment member. The abutment member is engaged with the biasing member and is biased against a stationary support member of the counter knife bank assembly for articulation therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.