Railcar bogie and railcar including same
US9663121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2014 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Feb 11, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F5/52
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A railcar bogie includes: a cross beam extending in a car width direction and supporting a carbody; plate springs extending in a car longitudinal direction and supporting both respective car-width-direction end portions of the cross beam; axle boxes accommodating respective bearings for axles and supporting respective car longitudinal-direction end portions of the plate springs; plate spring receivers each located between the plate spring and the axle box and including an upper surface which is inclined toward a longitudinal-direction middle portion of the plate spring, the upper surface receiving the plate spring; and stoppers arranged so as to cover at least a part of an upper surface of the plate spring, the part being located above the axle box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.