Tilting mechanism, preferably for a chair seat or similar article
US4890886A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1988 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Aug 16, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/448
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A tilting mechanism (1), preferably for a chair seat or similar article, comprises a rigid element (2) which, via a mounting means (3), can be attached to a chair base (4), a supporting means (6) adapted to the chair seat and pivotably connected in relation to said mounting means (3), resilient means (8a, 8b) so arranged between the supporting means (6) and the rigid plate (2) that the supporting means (6) can be tilted in relation to said rigid plate (2) under the influence of the resilient means (8a, 8b), as well as locking means (20, 21, 24) for adjusting the seat supporting means (6) to various tilting positions. To achieve a compact tilting mechanism offering separate or individual tightening of the tilting stiffness in the forward direction and the rearward direction without changing the seat angle in relation to the neutral it is, suggested that at least one of the resilient means (8a, 8b) be displaced in relation to the tilting shaft (5) of the supporting means (6). Appropriately, there may be provided a first resiliant means (8a) co-operating with a first portion of the rigid element (2), as well as a resilient means (8b) which co-operates with a second portion of the rigi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.