Importance

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Abstract

An office swivel chair is provided comprising a foot with a center column extending upwards therefrom, wherein the center column may be variable in length and/or spring mounted, a seat carrier is secured at the upper end of the center column, a seat top pivotable around a horizontal axis close to the front edge of the seat top, is connected with the seat carrier, and is biased by a spring arrangement with an upwards directed force, and a back rest attached at least one upwards extending lever which is articulately connected with the seat carrier at a first link point under the seat top, and spaced therefrom is articulately connected with the underside of the seat top at a second link point wherein, both link points comprise swivelling axes in parallel with the seat top swivelling axis. The length of the lever between the first link point and the second link point is variable by displacing the first link point and/or the second link point in the direction of the lever.

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First Claim