Pick-up floatation suspension
US6449936B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2000 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Jun 15, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F15/106
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A wide pick-up of a large round baler is mounted for floating or pivoting vertically about the axis of rotation of a rotary secondary conveyor that includes a pair of centering augers at its opposite ends. Provided at each side of the pick-up is a float spring assembly including a coil tension spring and an L-shaped link. Each coil tension spring has its upper end coupled to the baler main frame by a bracket receiving a rod joined to a spring end retainer, and has its lower end defined by a hook which is received in a hole provided in an upper end of the L-shaped link. The lower end of the link is defined by a short leg which projects forwardly beneath lower rear structure of the pick-up frame and contains a kidney-shaped aperture in which a cylindrical coupler is received, the coupler being fixed to a side member of the pick-up frame. The side members of the pick-up frame extend upward and rearward beside respective inner ends of the centering augers and respectively carry the coupling which pivotally mounts the pick-up frame for pivoting about the axis of rotation of the secondary conveyor. A pan structure includes separate front and rear sections with a lower rear portion of the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.