Mower unit
US6360517B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Feb 24, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A mower unit (B) having a housing (13), blades (12) supported in the housing to be rotatable about vertical axes (P1) acting as the centers of rotation, cutting edges (12A) defined at front edge regions of each blade with respect to a direction of rotation thereof, and lift vanes (12B) erected from rear edge regions of each blade with respect to the direction of rotation thereof. Each of the lift vanes includes a first vane portion (12b) extending the more rearwardly, with respect to the direction of rotation, the farther away the first vane is from the center of rotation, and a second vane portion (12c) bent in the direction of rotation from a radially outward end of the first vane portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.