Patent ID: 8882201

Claim:
A seat element, comprising: a frame able to sustain an associable seat and provided with at least one support, such as a leg or a foot; and a seat associable to said frame, the seat defining a seat plane; the frame and the seat being made separately from each other and being attachable and detachable from each other by the interposition of a first coupling and a second coupling separate from the first coupling, wherein: said first coupling comprises at least one elastic hook and a protuberance, able to form an elastic snap coupling with each other, wherein the at least one elastic hook is attached to the seat and housed inside hollows made in the seat, the protuberance overhangs and extends above the top of the frame and having a seat supporting surface facing the seat and is counter-shaped to a corresponding lower portion of the seat, the elastic hook being configured to and positioned so as to intercept the protuberance in a vertical assembly direction, substantially perpendicular to the seat plane, the elastic hook having a coupling end and a v-shaped hook end flexible in relation to the coupling end, the elastic hook presents a slot directly facing the protuberance so as to facilitate an elastic snap hook onto an undercut of the protuberance in the vertical assembly direction, wherein a first side of the v-shaped hook end includes a contacting end that contacts with and secures the protuberance to the lower portion of the seat and wherein the coupling end opposes a sliding of the protuberance toward a backrest of the seat; and wherein: the second coupling comprises: a bracket joined to the frame and overhanging the frame to face the seat; and a bent portion formed in the seat and bent toward the frame to form a housing receiving and covering the bracket, the second coupling being a shaped coupling of a type rotating in relation to a transversal rotation axis, perpendicular to the vertical assembly direction, such that rotating of the seat and the frame relative to one another about the transverse rotation axis defined by the second coupling enables snap engagement of the first coupling.