Wing fold implement with latching structure
US4867245A · kind A · utility
38Cited by
11References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Aug 15, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B73/046
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An agricultural implement with a main frame and inner and outer wing frames that include gravity actuated latching structure securing the wing frames in a folded position. The latching structure automatically locks the wing frames together as they are pivoted upwardly in the folded position toward a transport position and unlocks the wing frames as they are pivoted downwardly toward a transport position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.