Leaf loading machine
US4771504A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1987 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Oct 22, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H1/105
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A leaf harvesting machine has an auxiliary rotary beater and main rotary pickup broom on a mobile frame which both extend transversely of the direction of travel of the frame. The main pickup broom is disposed rearwardly of and in tandem relation to the beater. Both the beater and pickup broom are disposed adjacent to the ground and operable to counterrotate relative to one another so as to deliver leaves from the ground upwardly therebetween. One feature of the machine relates to the provision of, and cooperation which occurs between, a plurality of lifting elements of the beater and pluralities of sweeping and lifting elements of the pickup broom. Another feature relates to an arrangement for adjustably mounting the beater for movement toward and away from the pickup broom for presetting the positional relationship of the beater lifting elements relative to the pickup broom sweeping and lifting elements. Still another feature relates to an arrangement for pivotally mounting the pickup beater for movement about the pickup broom toward and away from the ground. Yet another feature relates to an arrangement for raising and lowering the beater and pickup broom between operating and t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.