Breakaway support post for highway guardrail end treatments

E - Fixed Constructions – 01 – F

Patent

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Details

E01F 15/04 (2006.01) E01F 9/018 (2006.01)

Patent

CA 2358600

A breakaway support post is provided for a highway guardrail system to enhance the safety of a vehicle impacting with either the rail face of the associated guardrail or one end of the guardrail facing oncoming traffic. The breakaway support post may have upper and lower portions with a releasable coupling assembly disposed therebetween to maintain the upper and lower portions generally aligned with each other prior to the impact of a vehicle with one end of the associated guardrail. The breakaway support post may also have releasable coupling assembly disposed between the upper and lower portions and a cable. The releasable coupling assembly may allow the upper portion to separate from the lower portion.

L'invention se rapporte à un montant de support (18, 210) susceptible de se rompre, qui est destiné à un système (10) de glissières de sécurité pour autoroutes et est conçu pour renforcer la sécurité des véhicules entrant en collision soit avec la surface faisant office de rail de la glissière de sécurité associée (16) soit avec une extrémité de ladite glissière de sécurité qui fait face au trafic en sens inverse. Ce montant de support susceptible de se rompre peut comporter des parties supérieure et inférieure (26, 28) entre lesquelles est placé un ensemble de couplage libérable (29, 211) conçu pour maintenir les parties supérieure et inférieure généralement alignées avant la collision entre un véhicule et une extrémité de la glissière de sécurité associée. Ce montant de support susceptible de se rompre peut également comporter un ensemble de couplage libérable (301) disposé entre les parties supérieure et inférieure et un câble (303). L'ensemble de couplage libérable peut être conçu de sorte que la partie inférieure se sépare de la partie inférieure.

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