Autonomous coverage vacuum cleaner having roller brush capable of resilient vertical displacement and roller brush frame unit for the same
US9211045B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2013 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Feb 14, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Provided are an autonomous coverage vacuum cleaner and a roller brush frame unit for use therewith. The autonomous coverage vacuum cleaner includes a body, the roller brush frame unit, and at least a roller brush. The roller brush frame unit includes a roller brush frame, a connection frame, and a resilient connection element. The connection frame is disposed at a bottom of the body. The resilient connection element is connected between the roller brush frame and the connection frame. The roller brush frame moves vertically relative to the connection frame and the body when subjected to an external force. The roller brush is rotatably disposed at the roller brush frame. The roller brush frame unit enables the roller brush of the autonomous coverage vacuum cleaner to lift and drop resiliently and automatically according to the condition of the floor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.