Patent ID: 6890027

Claim:
An adjustable seat for a motor vehicle, comprising: a substantially horizontal seating element, on a rear part of which is mounted a back by a joint; an adjusting device for adjustment of a position of the seating element of the seat relative to a structure of the vehicle; means for blocking and unblocking the adjusting device; and reinforcing means separate from the adjusting device and which, during a longitudinal impact, absorbs at least part of collision forces caused by the impact, reducing deformation of the adjusting device and reducing tilting movement of the adjustable seat around a geometric tilt axis of generally transverse orientation, wherein the reinforcing means is provided with at least one reinforcing leg, mounted to rotate by a first end around a transverse pivoting axis in the seating element of the seat, and that pivots around the transverse pivoting axis between an engaged reinforcing position, in which a second end cooperates with the vehicle structure, and a retracted position configured to permit adjustment of the position of the seating element.