Structure for converting an integral implement to a drawn type
US6758284B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 2002 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Nov 15, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B51/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Attachment structure for converting an integral implement to a pull-type implement includes wheel modules which can be placed at different locations along the frame to avoid interference with tool standards or other hardware. Each module includes both a forward gauge wheel and a rearward transport wheel. The transport wheels are located behind the center of gravity of the implement for stability, and the forwardly located gauge wheels offset the moment resulting from standard draft. A hitch storage jack doubles as a gauge wheel adjustment tool. To maintain the wheels in phase and provide a transport lock-up feature, a simple parallel circuit with pilot operated check valves on the base or lift end of each cylinder is utilized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.