Collision attenuator
US6474489B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 2, 2001 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Jan 2, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F19/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A train collision attenuator mounted on a leading end of a train for attenuating the force of impact between a moving train and a pedestrian or motor vehicle. The train collision attenuator includes an energy absorbing assembly and a mounting assembly. The energy absorbing assembly includes a leading surface and the energy absorbing assembly is dimensioned and configured for attenuating the force of impact between the moving train and the pedestrian located in the path of the moving train as the pedestrian impacts against the leading surface. The mounting assembly secures the energy absorbing assembly to the leading end of the train. A lifting mechanism for moving the energy absorbing assembly between a deployed position to a retracted position is also provided. A selectively-inflatable, externally-mounted airbag including an upper pedestrian cushioning portion and a lower pedestrian support portion is also provided. An energy absorbing hydraulic cylinder and a vehicle contact plate mounted on the hydraulic cylinder piston is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.