Vehicle vibration device for vehicle seats or vehicle cabins

The device has suspended-spring between seat main portion (4a) and seat back (4b) that are mounted in opposite to cabin floor. The seat main portion and seat back are being opposite the cabin floor is mounted. The main portion and seat back are pivotally in imaginary or real axis upon the occurrence of vibrations between the main portion and seat back and the cabin floor in the vehicle width direction or vehicle longitudinally extending axis.