Steerable implement hitch
US5823270A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1996 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Nov 25, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B59/042
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A hitch for a machine such as an agricultural tractor permits controlled towing of an implement behind the machine. The hitch has a frame attached to the machine and a subframe mounted to the frame for movement about a first or pivot axis with respect thereto. A mast is attached to the subframe so that it may pivot relative to the subframe about a second or pitch axis perpendicular to the pivot axis. The mast has a hitch element and a carrier positioned in movable engagement one with the other to permit relative elevational movement of the hitch element. The hitch incorporates multiple degrees of movement in a compact package and is useful as a steerable component of the machine to provide positive steering force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.