Powered rake having debris windrowing mechanism
US5261218A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1992 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Oct 27, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D78/001
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A powered rake for windrowing debris for subsequent collection is provided which includes a main frame for coupling to a tractor, a subframe mounted for pivotal movement relative to the main frame about an upright pivot axis, a roller pivotal with the subframe to an oblique angle relative to the direction of travel, and a material control member including a blade extending along the length of the roller and presenting a gap therebetween. The subframe is preferably pivotal for presenting the roller at an oblique angle to the right or left with respect to the intended direction of travel, thereby permitting the powered rake hereof to continuously windrow the debris in the path of the roller. The roller is rotatably mounted on a pair of downwardly and forwardly extending legs which present substantially open areas outboard of the roller to permit debris to pass freely outboard into a windrow without any obstruction from the frame or subframe supporting the roller. The roller preferably presents a plurality of circumferentially spaced, radially projecting splines which are spiral oriented around the longitudinal axis of the roller to present an even load on the roller as it rotates in …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.