Chair seat tilt adjustment and locking mechanism
US5683139A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1996 |
| Grant date | Nov 4, 1997 |
| Priority date | — |
| Expiry date | Nov 6, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32951
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A chair tilt control mechanism for a pedestal base chair having a chair control housing mounted on the pedestal chair base and pivotally supporting a chair seat support member. A laterally movable front stop member retained within the chair control housing is movable and contacts the front flange of the chair seat support member and limits the pivotal movement of the chair seat support member to predetermined angular positions with respect to the chair control housing and the floor supporting the chair. Also disclosed is a lever member adapted to lock the chair seat support member in one or more predetermined angular positions. Also disclosed is a hollow plastic pivot pin for pivotally connecting a chair control housing to a chair seat support member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.