Chair with improved waist bearing power
US9237811B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2014 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Nov 3, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/40
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A chair with improved waist bearing power by self-weight is provided. A chair includes a supporting portion connected to a leg portion, a seat portion with one side connected to the supporting portion, a backrest post with other end installed to the supporting portion fixedly, a backrest frame with the one side connected to a top end of the backrest post, a backrest link having a top end portion inserted into a inserting groove formed in a lower-central rear surface of the backrest frame and a bottom end engaging the seat portion rotatingly, a link fixer connected to the backrest link rotatingly by a connecting axle and installed to the backrest post fixedly, and a backrest installed so as to be connected to the backrest frame and a top end portion of the backrest link and having flexibility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.