Device for synchronizing the tilt of a chair back and seat
AssigneeDonati S.p.A.
InventorArmando Donati
Life of this patent
Estimating the term…
Abstract
Device for synchronizing the tilt of a chair back and seat, of the type comprising a frame of the chair back (5), a frame of the seat (2) and a support (1) integral with the base of the chair, as well as at least one first crank (3), integral with the afore said frame of the chair back (5), and hinged (6, 7) at the rear to the frame of the seat (2) and to the support (1), and at least one second crank (4), hinged (8, 9) at the front to the frame of the seat (2) and to the support (1). The afore said first crank (3) and the second crank (4), with the frame of the seat (2), determine a articulated quadrilateral, wherein such a first crank (3) and such a second crank (4) lie substantially on skew lines.
Claims10
Device for synchronizing the tilt of a chair back and seat, of the type comprising a frame of the chair back, a frame of the seat and a support integral with the base of said chair, as well as at least one first crank, integral with said frame of the chair back, and hinged at the rear to said frame of the seat and to said support, and at least one second crank, hinged at the front to said frame of the seat and to said support, said at least one first crank and said at least one second crank, with said frame of the seat, determining an articulated quadrilateral, wherein characterized in that said at least one first crank and said at least one second crank lie substantially on skew lines.
Dependencies are inferred from the claim text.