| 摘要 |
In connection with a tilting mechanism (1), preferably for a chair seat or similar, comprising 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 said supporting means (6) and said rigid plate (2) that said supporting means (6) can be tilted in relation to said rigid plate (2) under the influence of said resilient means (8a, 8b), as well as locking means (20, 21, 24) for adjusting said seat supporting means (6) to various tilting positions, it is, for the purpose of achieving 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, suggested that at least one of said resilient means (8a, 8b) can be displaced in relation to the tilting shaft (5) of said supporting means (6). Appropriately, there may be provided a first resilient means (8a) co-operating with a first portion of said rigid element (2), as well as a resilient means (8b) which co-operates with a second portion of said rigid element (2), each of said resilient means (8a, 8b) being displaceable independent of each other in relation to said tilting shaft (5) of said supporting means (6) by means of displacing means, preferably its own lever (10a, 10b). |
