Underseat mechanism for a chair
US5286088A · kind A · utility
19Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1992 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Feb 20, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/402
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An arrangement providing a backrest support pillar, particularly, though not exclusively, for an office chair whereby the height of a backrest can be selected by the user in a simple and ready manner using one hand. More particularly an arrangement is contemplated wherein the pillar is adjustable from a maximum length to a minimum length without resistance and is adjustable incrementally from that minimum length and automatically maintainable at a selected length. The invention also provides a seat/back synchronous tilt mechanism for a chair which eliminates the "shirt-lifting" effect of known chairs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.