Railcar bogie
US8656839B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2011 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Apr 25, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F5/52
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A railcar bogie includes: a cross beam configured to support a carbody; a pair of front and rear axles respectively provided on front and rear sides of the cross beam so as to extend along a crosswise direction; bearings respectively provided on both crosswise-direction sides of each of the axles and configured to rotatably support the axles; bearing accommodating portions configured to respectively accommodate the bearings; and plate springs extending in a front-rear direction so as to be respectively supported by both crosswise-direction end portions of the cross beam, end portions of each of the plate springs being respectively supported by the bearing accommodating portions. Each of the bearing accommodating portions includes: a case portion configured to accommodate the bearing; and supporting portions configured to support the plate springs. The plate springs are supported by the supporting portions on a center side of the axle in the front-rear direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.