Railway vehicle bogie with vibrations reducing device

To an interior portion of a side beam (11) of a bogie car, a vessel (52) in which a particle shape member (51) is accommodated is installed, this vessel (52) serves as a reinforcement of the side beam. An excitation source according to the track irregular arrangement is transmitted from vehicle wheels (20) to a bogie frame (10) through an axle spring member etc.. The vibration energy which is generated in the side beam (11) of the bogie frame (20) is converted to a kinetic energy of the particle shape member (51) in accordance with the collision of the particle shape member (51) in the vessel (52) and then the vibrations in the side beam (11) of the bogie frame (10) can be reduced. Accordingly, the vibrations from the vehicle wheels (20) which are generated according to the track irregular arrangement or the unbalance of the vehicle wheels (20) can be reduced at the side beam portion and the vibration propagation to other portions can be restrained. In a railway vehicle use bogie car, the vibrations which are transmitted from the bogie frame (10) to a car body (40) can be reduced and the noises in an inner side car can be restrained.