Chair back adjustment mechanism
US6273384A · kind A · utility
6Cited by
22References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1999 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | May 21, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/402
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A mechanism for adjusting the height of a back part (3) of a typist's chair uses a sleeve-shaped slider (13) on the back part which slides along a rigid bar (8), and an interengageable pawl (37) and rack (22 or 23) are used to retain the back part (3) in an adjusted position. The sleeve (13) is accurately guided on the bar by engagement of projections (42, 43) such as lengths of cord, with grooves (40, 41). This guide arrangement can also be used for guiding movement of separate parts on furniture or in other applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.