Patent ID: 6966598

Claim:
An apparatus for adjusting the vertical and longitudinal position and the inclination of a pivotable seat part ( 2 ) of a vehicle seat ( 1 ) relative to a floor structure ( 4 ) of the vehicle, the apparatus having a linkage that comprises: a linkage part having at least one articulated rectangle (ABCD), that has a base (AB), two rockers (BC, AD), and a coupler (CD), the base (AB) being arranged in a plane extending substantially parallel to a longitudinal seat axis (X—X), and the two rockers (BC, AD) being pivotable about rotation axes extending substantially parallel to a transverse seat axis; and wherein the linkage part comprises two linkage parts, each comprising at least one articulated rectangle (ABCD; CDEF), that each have a base (AB; CD), two rockers (BC, AD; DE, CF), and a coupler (CD; EF), the base (AB) of the first linkage part adapted to be fixed with respect to the floor structure ( 4 ) of the vehicle, the coupler (CD) of the first linkage part including the base (CD) of the second linkage part, the coupler (EF) of the second linkage part being fixed with respect to the seat part ( 2 ), and one of said rockers (DE, CF) of the second linkage part being coupled in constrained kinematic fashion to the rocker (AD) of the first linkage part.