Lawn mower
US10070578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2017 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Mar 17, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A lawn mower includes a drive source for driving a cutter blade, flaps, a grass clippings container, a grass clippings container weight detection unit, a travel distance detection unit, and a control unit. The control unit determines a change amount of weight of the grass clippings container detected by the grass clippings container weight detection unit over the elapsed time period from the time when detection of travel distance of the lawn mower is started by the travel distance detection unit to the time when travel of predetermined distance is completed, and implements control in a manner that the rotation speed of the drive source and the flap angle of the flaps are adjusted in accordance with the change amount of the weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.