Hay-making machine
US4759172A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1986 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Dec 9, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D84/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A hay-making machine, in particular for side-delivery raking, includes a plurality of truncated-cone-shaped rotary devices which are rotatably arranged about an axis which is slightly inclined in relation to a vertical line, the rotary devices being provided with elastic deformable tools and being arranged side-by-side on a supporting arm which slightly ascends in relation to the working surface and which is supported on the ground by a supporting plate and also provided with a joint drive. The supporting arm extends essentially perpendicular to the working direction of the machine and the adjacent rotary devices overlap. A driving pulley at on end of the supporting arm is connected by superimposed V-belts to a respective rotary device, and the V-belts are provided with a band-like widened backside to form a closed working surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.