High wheel mulching mower with adjustable collection chamber
US5355666A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1993 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Aug 25, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A mulching rotary lawn mower that cuts and returns grass clippings to a lawn wherein the proportion of grass clippings that are finely cut by the rotating cutter blade can be selectively increased or decreased by provision of a collection chamber at the rear of the housing containing the rotating cutter blade, the collection chamber having a mulcher plate with a plurality of openings which can be pivoted from a substantially vertical position wherein the plate is tangential to the circle described by the cutting tips of the blade or moved rearwardly about a 45.degree. angle, thus effectively enlarging the collection chamber while closing the openings therein, so that a greater proportion of the grass clippings cut by the blade are received in the collection chamber, but which clippings, on the average, have been cut a lesser number of times and therefore are coarser than when the plate is in the vertical position. The position of the mulching plate is controlled by a handle readily available to the operator. In the coarser mode, the clippings are less likely to clog the air flow which recirculates clippings and this mode is intended particularly for lawns which are wet or the grass…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.