Torsion bar railway truck
US5222442A · kind A · utility
6Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1992 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Jul 30, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F5/36
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A railway truck has frames on each side divided into separate components or lever arms extending from the axles. Opposed arms are secured together by a pair of parallel torque tubes. A bolster rides on the tubes and maintains the tubes in parallel and provides frictional damping. The torsion tubes each carry a pair of torsion bars secured at the inner end to the torque tube and to the outer end to the bolster. Unequal loads on opposite wheels are carried equally by the torsion tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.