VEHICLE SUSPENSION DEVICE

A vehicle suspension device (1) includes a suspension device main body (5) configured to support a wheel (3) of a vehicle (2) to a vehicle body (4) of the vehicle (3); an upper intervening member (60) configured to be intervened between a vertically upper portion of the suspension device main body (5) and the vehicle body (4) so that a front-back stiffness of the vehicle (2) is relatively decreased at a time of smooth-braking of the vehicle (2) at which an absolute value of a braking force of the vehicle (2) is relatively small, compared to at a time of non-braking of the vehicle (2); and a lower intervening member (80) configured to be intervened between a vertically lower portion of the suspension device main body (5) and the vehicle body (4) so that the front-back stiffness of the vehicle (2) is relatively increased at the time of smooth-braking of the vehicle (2), compared to at the time of non-braking of the vehicle (2). Therefore, the vehicle suspension device (1) exhibits an effect in which vibration can be appropriately reduced.