Vertical back adjust for chairs
US5232265A · kind A · utility
11Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1992 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | Feb 11, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32057
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A mechanism for vertical adjustability and securement of a backrest of a chair on the upright support of the chair having a housing which includes first and second housing members, and a pair of link assemblies, pivotally connected and movable between a locked position and an unlocked position. A resilient sleeve is carried by one of the link assemblies and is engageable against the upright support when the link assemblies are in the locked position to grip the upright support between the sleeve and a rod to prohibit vertical movement of the housing with respect to the upright support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.