Patent ID: 8047610

Claim:
A vehicle seat comprising: a seat back; a seat cushion; a support base supporting the seat back on a vehicle floor; a front link coupling the support base and the seat cushion to each other and pivotally coupled to each of the support base and the seat cushion; and a rear link coupling the seat cushion and the support base to each other and pivotally coupled to each of the seat cushion and the support base, wherein the seat back is coupled to the support base, so that the seat back can tilt forwardly relative to the support base, and wherein a first coupling point of the rear link to the seat cushion is positioned rearward of a second coupling point of the front link to the seat cushion; a force transmission device coupled to the seat back and slidably communicating with the rear link via a cam slot and transmitting a force caused by a tilting movement of the seat back to the rear link when the seat back is tilted forwardly, wherein the first coupling point is positioned rearward of a third coupling point of the rear link to the support base, so that the rear link pivots to cause a downwardly shifting movement of the seat cushion as the force is transmitted from the forwardly tilting seat back to the rear link via the force transmission device.