Patent ID: 7954896

Claim:
A chair seat comprising: a transversal frame; and a plurality of moveable seat parts including a right, a center and a left moveable seat part, the moveable seat parts being dimensioned to form a seating surface for supporting a single person thereon, the chair seat defining a first plane substantially parallel to a seat face of the seat, wherein the movable seat parts are moveably secured to the transversal frame by gliding faces such that the moveable seat parts are moveable independently with respect to one another in a longitudinal direction of the chair seat and substantially in the first plane, between a first position where the movable seat parts are aligned with each other in the longitudinal direction to form a substantially flat front surface across the moveable seat parts and a second position where the center seat part projects forwards in relation to the left and right seat parts in the longitudinal direction, and the center seat part has rounded sides, and each of the left and right seat parts has a side adjacent to the center seat part that extends toward the center seat part to conform to a curvature of the rounded sides of the center seat part.