Folding hay rake with stabilizing support assembly
US5598691A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1995 |
| Grant date | Feb 4, 1997 |
| Priority date | — |
| Expiry date | Mar 1, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D78/001
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An agricultural implement includes a primary frame, having a front and rear, a pair of opposed secondary frames each having an inboard end and an outboard end and each operably supporting a bank of ground driven wheel rakes, coupled to the primary frame near the rear and a positioning assembly to pivotally deploy or retract the secondary frames. The positioning assembly includes a deployment slide mounted on the primary frame and a pair of opposed fixed length spreader bars connecting the deployment slide to the outboard end of the secondary frames. An equalizing assembly dynamically couples the secondary frames by coupling the spreader bars, to a dancer on the primary frame. The implement also has an adjustable rear wheel spacing mechanism, employing a pair of interacting screws.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.