Railroad test vehicle comprising a railroad measurement axle suspension
US6725782B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 24, 2003 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Mar 24, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B37/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A railroad test vehicle extending in a longitudinal direction comprises a measurement axle comprising two flanged wheels rotatable about a measuring axis extending transversely to the longitudinal direction and adapted to run on two track rails. A cross member extends transversely to the longitudinal direction, is vertically spaced from an underside of the vehicle and is affixed thereto. The connection between the measurement axle and the cross member comprises two trunnions transversely spaced from each other and mounted on the cross member, each trunnion defining a clearance with the cross member sufficient to enable the trunnion to be freely tilted to either side of the vehicle about an axis extending in the longitudinal direction, a support frame mounted on each trunnion for pivoting freely about an axis extending perpendicularly to the longitudinal direction, and two pairs of linkages, the pairs being transversely spaced from each other by the same distance as the transversely spaced trunnions. Each pair comprises an upper swing arm and a lower swing arm spaced from the upper swing arm in a vertical direction. A joint connects each swing arm to the measurement axle, and a hing…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.