Secondary feeder rotor behind undershot precutter
US7694504B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2008 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Sep 24, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/28
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A round baler has an overshot secondary rotor located behind an undershot precutter rotor. The round baler has a relatively wide swath crop pick-up and a baling chamber with a significantly more narrow inlet. The precutter rotor has a central region supporting a plurality of rotatable crop conveying members interleaved by both a set of relatively fixed cutting blades and a set of relatively fixed strippers for urging cut crop away from the rotor, and end regions supporting rotatable helically disposed bands for receiving wide swath crop from the pick-up arrangement and urging the received crop toward the central region. The secondary rotor creates an S-shaped or serpentine crop path with minimal dead space and is a positive feeder for bale starting. Stationary strippers for the secondary rotor prevent crop from exiting the baler behind the secondary rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.