Bogie for rail vehicles
US5024166A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1989 |
| Grant date | Jun 18, 1991 |
| Priority date | — |
| Expiry date | Aug 4, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F5/38
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bogie for rail vehicles with a low-seated loading ramp, comprises at least two sets of wheels with a small axle base and a bogie frame comprising lateral cheeks and a traverse extending between every two axles. The sets of wheels are clamped into the bogie frame by axle bearings, and the bogie is connected to the vehicle frame merely by a carrying leaf spring carried by suspension rings. A fixing device cooperates with the suspension rungs to limit the movement of the bogie relative to the rail vehicle. The rocking or swaying properties of the bogie are optimized to improve the running behavior on straight stretches as well as on curves while providing the required transverse play of the bogie. The construction is made more favorably by employing long suspension rings. The power transfer from the loading ramp through the carrying leaf spring to the bogie is improved by carrying leaf springs on spring brackets arranged laterally between the structure gauge and the freight hold of the vehicle and on the outside of the lateral cheeks and above the rails.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.