Three point hitch frame, draft arm and rear counterweight design
US7686097B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2007 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Jun 11, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B63/118
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A three point hitch for a work machine includes a first and a second draft link each having a mounting end portion and a free end portion opposite the mounting end portion. Mounting end portion being mounted to a first side of a work machine to allow upward and downward pivotal movement of the free end portion beside an upwardly and downwardly extending fixed structural element of the work machine. Mounting end portion of the second draft link being mounted to a second side of the work machine opposite the first side to allow upward and downward pivotal movement of the free end portion of the second draft link. A sway restrictor mounts on the free end portion of the first draft link and restricts sideward swaying thereof toward and away from the structural element. A counterweight for use with the three point hitch is interchangeable with a fluid motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.