Vehicle-stopping device for safety barriers
US4290585A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 12, 1979 |
| Grant date | Sep 22, 1981 |
| Priority date | — |
| Expiry date | Apr 12, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F15/146
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A barrier for highway traffic of the type designed to bring a vehicle to standstill and avoid contact with a roadside hazard, e.g. a post, abutment or pylon, comprises an array of upstanding posts adapted to cushion the impact and increasing in number and height in the direction of travel of the vehicle toward the barrier to impose increasing resistance to traveling. The posts each comprise an upper and a lower section or portion in the form of tubes of which the lower tube is set into the ground while the upper tube is composed of thin sheet metal lined with or filled by a cushioning material such as a foamed synthetic resin. The two tubes or sections of each post are interconnected by a cast iron link which is designed to shear at ground level in part dissipating the kinetic energy of the vehicle. The upper tubes of the array are interconnected by chains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.