US 12,643,579 B2Granted

Rail vehicle

AssigneeHitachi, Ltd.

InventorsSatoru Kagata, Kimiyasu Yoshimura, Yosuke Morita

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Abstract

Provided is a rail vehicle that efficiently transmits, to a railway vehicle structure, an oscillating force transmitted from a bogie to an underframe via a yaw damper and a yaw damper support portion, and that has sufficient strength. The underframe includes a floor portion, a side beam, and a bolster beam. A side structure is erected on an end portion in a vehicle width direction of the underframe. The bogie supports the underframe from below the underframe. A yaw damper receiving portion is provided to the end portion in the vehicle width direction of the underframe. The yaw damper support portion is fixed to the yaw damper receiving portion. The yaw damper includes one end portion connected to the bogie and the other end portion connected to the yaw damper support portion. The yaw damper is configured to reduce yawing oscillation of the bogie. The yaw damper receiving portion is provided to extend along the side structure, the side beam, and the bolster beam.

Claims10

Dependent claims

A rail vehicle comprising:

an underframe including:
a floor portion forming a floor;
a side beam provided in a vehicle longitudinal direction along an end portion in a vehicle width direction of the floor portion;
and a bolster beam provided on a lower face of the side beam and a lower face of the floor portion, the bolster beam extending in the vehicle width direction across the side beam and the floor portion;
a side structure erected on an end portion in the vehicle width direction of the underframe;
a bogie supporting the underframe from below the underframe;
a yaw damper receiving portion provided to the end portion in the vehicle width direction of the underframe;
a yaw damper support portion fixed to the yaw damper receiving portion;
and
a yaw damper including one end portion connected to the bogie and another end portion connected to the yaw damper support portion, the yaw damper being configured to reduce yawing oscillation of the bogie,
wherein the yaw damper receiving portion is provided to extend along the side structure, the side beam, and the bolster beam.

8 more elements

Dependencies are inferred from the claim text.