Low-floor railcar bogie and low-floor railcar including the same
US8794160B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2010 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Jan 16, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F3/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A low-floor railcar bogie of the present invention includes: a bogie frame including a pair of left and right side beams and a cross beam, each of the left and right side beams including a front portion, an intermediate portion, and a rear portion in a vehicle longitudinal direction, the intermediate portion being located at a position lower than the front portion and the rear portion, the cross beam connecting the intermediate portions of the pair of side beams each other; a pair of front and rear axle beams formed separately from the bogie frame, respectively located on a front side and rear side of the cross beam, and each extending in a vehicle width direction; independent wheels rotatably supported by left and right side portions of the axle beams, respectively; primary suspensions configured to elastically couple the front and rear portions of the side beams and the left and right side portions of the axle beams; and secondary suspensions provided on upper surfaces of the front and rear portions of the side beams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.