The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2026
Filed:
May. 16, 2022
Hitachi, Ltd., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
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.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile