Chair with an adjustable backrest
AssigneeKusch & Co. Stizmobelwerke KG
InventorSimon Desanta
Life of this patent
Estimating the term…
Abstract
An adjustable chair, especially an office chair, includes a column (32), a seat (34), a backrest (36), supported by a curved supporting bar (40). Three horizontal transverse axes (44, 46, 48) connect the seat and the column, the column and the curved supporting bar and the curved supporting bar and the seat in one hinged triangular arrangement where at least one transverse axis permits not only a swiveling motion but also a relative shift of the connected parts to permit an adjustment of the seat and backrest. At least one of the transverse axes of this type consists of at least one rubber pad (46, 48).
Claims9
A chair, especially an office chair, having a vertical column with a seat mounted on said column and a backrest connected to said column by a curved supporting bar, means defining three hinge points, each having a horizontal transverse axis, for respectively connecting the seat and the column, the column and the supporting bar and the supporting bar and the seat in a hinged triangular arrangement, wherein, when said backrest is reclined, said hinge point connecting the seat and the supporting bar is simultaneously vertically moved horizontally shifted between the seat and the supporting bar, wherein said hinge points connecting the seat and the column on the one hand and the seat and the supporting bar on the other hand, respectively, are formed by rubber pads, whereby seat movement is divided into a shifting movement between the seat and the column on the one hand and between the seat and the supporting bar on the other hand.
Dependencies are inferred from the claim text.