Vehicle seat with controlled quadrant arms

The seat has a height-adjustable seat frame arranged between a seat part, a backrest, a guide rail and a seat lower part. The frame includes two scissor arms rotatably connected with each other. Front ends of one of the scissor arms are connected with a block-shaped slide element (12) for sliding displacement of the ends in a displacement direction (10) along the guide rail. The slide element includes wing-like pressure force elements (23a, 24a) for exerting pressure force directed against the guide rail. The guide rail has a U-shaped cross-sectional profile.