Tilt control mechanism for chair
US6945602B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2003 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Mar 17, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C1/03294
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A chair back is supported on a rigid upright coupled to a horizontal tilt shaft disposed under the front of the chair seat and supported on a control housing fixed to a pedestal. A tension mechanism urges the upright into an upright position. The chair seat is movably supported on the upright by an arrangement which permits the seat to pivot about a transverse horizontal axis positioned adjacent the upper surface of the seat. A control link is pivoted at one end to the control housing, and the other end has lost-motion pivotal connections to the seat frame and the upright. The lost-motion pivotal connection to the seat frame including a spring cooperating between the upright and the seat frame to allow the seat to move relative to the upright.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.