Forwardly-folding agricultural implement
US6076613A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Sep 8, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B73/065
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A forwardly-foldable agricultural implement includes a center frame supported by wheels and extending generally transverse to the direction of travel, and a pair of wing sections. Each wing section has an intermediate portion pivotally connected to the center frame by a foldable frame and being supported by a wheel. The foldable frame includes a pair of elongated wing support members having one end connected to the center frame and another end connected to the respective wing section. The foldable frame also includes a pair of hitch arms with one end connected to a two-direction pivot knuckle on a three-point tractor hitch and another end pivotally connected to the respective wing section and its wing support member. This structure provides a method of changing a foldable implement between a wide, field operating configuration and a narrower, road transport configuration without the necessity of a telescopic tongue member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.