Railcar bogie and railcar including same
US9527516B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2013 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | May 4, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F5/44
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A railcar bogie includes: a cross beam to support a carbody of a railcar; wheels at both railcar width direction sides of the bogie lined up longitudinally at each side; a pair of front and rear axles respectively at a front side and rear side in the railcar longitudinal direction to sandwich the cross beam each of the axles connect wheels located at the left side and right side of the railcar; bearings at both railcar width direction sides of each axle to rotatably support the axle; axle box portions coupled to the cross beam via elastic members to store the bearing; and plate spring portions to respectively support both railcar width direction end portions of the cross beam and both railcar longitudinal direction end portions of the plate spring portions, supported by the axle box portions. The axle box portions include a surface that supports the plate spring portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.