Articulated chair
US4547017A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1983 |
| Grant date | Oct 15, 1985 |
| Priority date | — |
| Expiry date | Dec 23, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C1/03294
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A back rest and a chair seat are pivoted to each other about a displaceable axis and the back rest is pivotally attached to a support along an axis parallel to that axis. The back rest and the seat are continuously displaceable with respect to each other between a sitting position and a recumbent position of the user. At least the displacement of the chair seat is guided at the end opposite to the axis of pivotal attachment of the seat to the back rest along a curve so determined that, when the back rest and seat undergo a displacement between the two positions mentioned above, the center of gravity of the user's body moves away from a horizontal plane over a distance which is sufficiently short to ensure that the user can modify the relative position of the back rest and seat by exerting acceptable efforts without any need to rise from the chair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.