| 摘要 |
<p>A device for adjusting and positioning a chair, the base of the chair underneath the part forming the seat possessing a lever mechanism which is operatively connected to a gas-pressure piston and to which is connected a first guiding and fixing strip which is passed through a plurality of transverse ribs connected to each other in an articulated manner and forming the backrest of the chair, and having a second guiding and fixing strip which is assigned to transversely arranged ribs connected to each other in articulated manner which form the footrest of the chair. <IMAGE></p> |
