Vehicle seat

The seat plate for a vehicle supports a cushion and contains at least two plate areas pivotable relatively to each other, one of which is supported on an inclination adjustment device. The plate areas (2,3,4) are assembled to form a one-piece seat plate (1), which contains between the plate areas at least one profiled zone (5,6) of reduced bending resistance. The profiled zone contains grooves (7,8) extending vertically to the pivot plane. The grooves have a meander-type cross-section profile.