Tractor power lift with a mechanical disconnect to power source
US4664405A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1986 |
| Grant date | May 12, 1987 |
| Priority date | — |
| Expiry date | Jul 14, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20213
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
On a tractor having a main frame channel that includes an overhead wall and depending side walls and a lift arm mounted on a rockshaft for raising and lowering a tractor-supported implement, a power means for rocking the rockshaft with a lost motion connection between the power means and the rockshaft, a vertical member extending through the overhead wall and freely swivable therein and having a manual controllable portion above the transverse wall structure and an axially hollow section beneath the wall structure, a fixed pipe-like member in axial alignment with the swivel member and having an internal threaded portion, a stud threaded into the pipe-like member and having a head seated in and connected to the hollow section of the swivel member to swivel therewith, and a vertically disposed rod having an upper end portion extending to and engaging the lower end of the stud and a lower end connected to the rockshaft in radial offset relation to its axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.