Mechanism and chair for powered combined and independent seat back and leg rest motion
US8608240B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2011 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Mar 27, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/5068
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A furniture member mechanism includes a first actuator device electrically operated to displace first and second seat back actuation links connected to and operating to rotate a seat back member between upright and fully reclined positions. A pantograph linkage set connected to a leg rest member is at least partially supported in an extended position by rotational contact with a support rod. A second actuator device identical to the first actuator device is electrically operated to axially rotate a drive rod connected to a drive link. The drive link is connected to and displaces the pantograph linkage set between the stowed and extended positions. A swing lever rotatably connected to the support rod is rotated during operation of the second actuator device to extend the pantograph linkage set. The swing lever in a fully rotated position displaces the support rod creating a furniture member tilt position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.