Lawn mower
US10070580B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2017 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Apr 2, 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 through a rotation shaft, a flap provided for the cutter blade in a manner that the flaps have a flap angle changeable along a horizontal line which is perpendicular to the rotation shaft, an actuator for controlling the flap angle of the flaps, a control unit for controlling the actuator, and a blade switching unit for switching the cutter blade between an operation state and a stop state. When the control unit determines that a stop switch signal has been received from the blade switching unit, the control unit controls the actuator to increase the flap angle of the flaps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.