| 摘要 |
PCT No. PCT/NO96/00293 Sec. 371 Date Jun. 18, 1998 Sec. 102(e) Date Jun. 18, 1998 PCT Filed Dec. 18, 1996 PCT Pub. No. WO97/22283 PCT Pub. Date Jun. 26, 1997For automatically adjusting the tilting resistance of a chair seat (6), which is tiltably attached on a base column (1) via a horizontal shaft provided across the chair, and where tilting resistance and springing are determined by two spring elements (13, 14), one spring is compressed by tilting in one direction and the other spring compressed by tilting in the opposite direction. The spring force is adjustable. In order to be able to adapt the tilting resistance to the seat's/backrest's setting automatically, the spring elements (13, 14) are connected to the seat/backrest by mans of a connecting element which directly influences their spring force by an adjustment of the seat and/or backrest. |
