Office chair

Abstract

Abstract The chair has a seat plate (2), which is mounted rotatably on the seat support (1) at the attachment point (3). The backrest support (4) is connected in an articulated manner by an arm (5), extending below the seat plate (2), on the one hand to the seat plate (2) and, on the other hand, by means of a double-jointed lever (10') also to the seat support (1). A gas spring (7), which can be arrested in any desired positions, acts on the backrest support (4) and has the tendency to bring it into the position drawn in continuous lines. When the chair is moved out of the latter position into the position drawn in dot/dashed lines, the seat plate (2) swivels only approximately half as far as the backrest support (4). In this case, it is essential that, despite the synchronous movement of the seat plate (2) and the backrest support (4), no effects arise which cause the shirt to be pulled out. The path of the gas spring increases progressively as a function of the rearward movement of the backrest, with the result that the force acting on the backrest due to the gas spring (7) is likewise greater with the increased inclination of the backrest. <IMAGE>

Inventors

• 👤 Eckard Hansen

Bibliographic Details