Vehicle crash barriers

Details Vehicle crash barriers Vehicle crash barriers

1985-03-29

1987-01-27

Kundrat, Andrew V.

Fences

Highway guard

256 19, 248 66, A01K 300, E01F 1500

Patent

active

046389792

ABSTRACT:
A vehicle crash barrier is designed to provide a progressively increasing resistance to impact. In one embodiment a rail (12) is mounted on upright posts (10) by means of dual connecting elements (13,14) the rear elements (13) being of rectangular box section and relatively stiff while the front elements (14) are of hexagonal cross-section and therefore more easily deformed. Some of the web pairs (16A,16B) of the hexagonal section are inclined to the direction of thrust. In another example the beam assembly includes two rails (20,21) the lower rail positioned forwards of the upper rail and mounted on dual collapsible connections (24,25) while the upper rail (20) is carried by relatively stiff connections (23).

REFERENCES:
patent: 2204556 (1940-06-01), Ahles
patent: 3258250 (1966-06-01), McMullin

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