Lawn mower with humidity controlled shutter device
US11109531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2017 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Jul 3, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A lawn mower includes: a work unit including a housing having a downward-facing opening end a cutter blade rotatably provided in the housing such that when rotated, the cutter blade cuts grass and generates a transport air flow flowing from the opening of the housing to inside; a grass clippings receptacle configured to receive mowed grass clippings; a grass clippings transport passage connecting an interior of the housing with the grass clippings receptacle; a shutter device including a shutter configured to open and close the grass clippings transport passage and an actuator configured to open/close-drive the shutter; a controller configured to control the shutter device; and a humidity sensor for detecting a humidity of an environment surrounding the lawn mower, wherein the controller is configured to open/close-control the shutter device based on the humidity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.