Patent ID: 7234776

Claim:
A body support chair for physically challenged and disabled persons comprising a frame supporting an articulated structure, which comprises a seat, a foot rest, a back, as well as two symmetrical lateral articulated systems, each system comprising: a first deformable quadrilateral contributing to support of the seat, comprising an upper sill and a lower sill defining two great sides of the quadrilateral, articulated on a front part of the frame corresponding to a front minor side of the quadrilateral and connected towards their back parts by a spacer part corresponding to a minor rear side of the quadrilateral; a second deformable polygon contributing to the support of the foot rest and connected to a front part of the first quadrilateral and the frame; a back assembly that is articulated on the first quadrilateral opposite the second polygon by means of at least the spacer part, and which comprises at least one upright connected to the spacer part; a maneuvering assembly interposed between the lateral systems and the frame, and constructed and arranged to regulate and control relative pivoting of the lateral systems from a lowered position to a verticalized position of the structure relative to the frame and vice versa; and means for automatic modification of inclination angle (β) of the back of the chair with respect to the vertical direction in a sagittal plane, the means for automatic modification comprising the spacer parts and/or the first quadrilaterals and being adapted to induce a modification of the inclination when the lateral systems are moved from the lowered position to the verticalized position.