PNEUMATIC SUSPENSION DEVICE FOR VEHICLE

PROBLEM TO BE SOLVED: To provide a pneumatic suspension device for a vehicle, which has simple structure, causes appropriate reaction force to be generated with respect to a change in attitude of a vehicle, thereby stabilizing the attitude of the vehicle.SOLUTION: The pneumatic suspension device for the vehicle includes: a pair of right and left trailing members 12, the front edges of which are tunably attached to the right and left outsides of a frame provided in the vehicle 100, respectively, and which are bent from outside to inside of the frame; a vehicle axle member 24 which is fixed to the trailing member 12, and on both the ends of which right and left wheels of the vehicle are mounted; a pair of right and left air springs 14 provided between the frame and the trailing members 12; a pair of shock absorbers 16 provided between the frame and the trailing members 12; and attitude maintaining members 18 which are provided in the pair of right and left trailing members 12, respectively, and which cause desired reaction force to be generated with respect to relative displacement between the pair of right and left trailing members 12 when the relative displacement occurs.