Patent ID: 9327737
Filing Date: 2016-05-03
CPC Classification: B61F

Claim Text:
1. A railcar bogie comprising: a cross beam configured to extend in a railcar width direction and support a carbody of the railcar; a pair of front and rear axles respectively arranged at both sides of the cross beam in a railcar longitudinal direction so as to extend in the railcar width direction; bearings respectively provided at both railcar width direction sides of each of the axles and configured to rotatably support the axles: axle boxes configured to respectively accommodate the bearings; plate springs extending in the railcar longitudinal direction so as to respectively support both railcar width direction end portions of the cross beam and load applied to the cross beam by the earbody, each plate spring including both railcar longitudinal direction end portions respectively supported by the axle boxes; contact members respectively provided at both railcar width direction end portions of the cross beam and respectively disposed on railcar longitudinal direction middle portions of the plate springs so as not to be fixed to the plate springs in an upper-lower direction by separably contacting the railcar longitudinal direction middle portions of the plate springs; and an auxiliary supporting mechanism configured to, in a case where the railcar width direction end portion of the cross beam is displaced downward beyond a predetermined elastic deformation range of the plate spring, receive from below and support a load applied from the cross beam, via the plate spring or one end portion of the cross beam.