Multiple implement hitch and transport
US4518046A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1982 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Jun 21, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B73/065
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A two-wheeled trailer hitch supporting two three-point hitch mounted implements side-by-side for field operation. The implements are mounted on outriggers which are foldable forwardly to narrow the unit for transport. A pair of rigid diagonal drag links movable fore-and-aft by a cylinder-activated slide block is connected to the outriggers for pivoting them approximately ninety degrees between the field and transport positions. Lift frame structures selectively engage the three-point hitch linkages to raise the implements on the respective outriggers. The lift frame structure is disengaged from the linkages when the implements are lowered for greater flexibility in the field-working position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.