Six bar mechanism and control for chair
US7784870B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2008 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Mar 13, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C1/03274
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A chair according to embodiments of the present invention includes a base; a first linkage pivotably coupled to the base, a seat pivotably coupled to the first linkage, a second linkage pivotably coupled to the seat and pivotably coupled to the base, a back comprising a substantially upright portion and an attachment portion, the attachment portion pivotably coupled to the base at a first pivot point, and a third linkage pivotably coupled to the back at a second pivot point and pivotably coupled to the second linkage, wherein the second pivot point is on the attachment portion between the first pivot point and the substantially upright portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.