Abstract: In a vehicle seat, especially an aircraft passenger seat, with at least one seat component which can be adjusted in its position, such as a seat part which can be mounted with its seat frame structure (3) by way of swivelable support legs (7, 11) above a floor structure (1), the support legs (7, 11) acting on the seat frame structure (3) in pairs in the area of the front edge (9) and rear edge (5) of the seat of the seat part, and with an actuating mechanism which is connected by action to a pair of support legs (7, 11) for producing a swiveling motion of the support legs (7, 11) which causes a change in the position of the seat part, the actuating mechanism is coupled to the assigned pair of support legs (7, 11) by way of a differential mechanism (13) which converts the swiveling motion of the support legs (11) into a change of the effective length of the assigned pair of support legs (11), which length determines the vertical distance between the seat frame structure (3) and the floor structure