| 摘要 |
The invention provides an improvement to a chair which has a tiltable seat carrier ( 1 ) and a tiltable backrest ( 2 ) on the backrest carrier ( 5 ) which are forcibly coupled to one another, and to an individual adjustment of the tilt of the seat carrier ( 1 ) in relation to the backrest carrier ( 5 ). The improvement consists in the fact that there is provided on the underside of the seat carrier ( 1 ) a bearing block ( 10 ) having a slideway contour ( 14 ) and a vertical slot ( 13 ) in which the flange ( 9 ) of a lifting element ( 7 ) is mounted vertically movably, and the lifting element ( 7 ) has a substantially triangular collar ( 12 ) which slides on the substantially rectangular slideway contour ( 14 ) when the flange ( 9 ) moves vertically. This means that the tilt of the seat carrier ( 1 ) can be adjusted to be steeper or flatter by turning the lifting element ( 7 ), and the limit positions are completely stable. The possibility of automatic unlocking is ruled out.
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