E - Fixed Constructions – 01 – F
Patent
E - Fixed Constructions
01
F
E01F 15/02 (2006.01)
Patent
CA 2539617
An impact head for a road guardrail (1) including cable routing means (2) adapted to form a convoluted path through which a cable can be threaded. The convoluted path that the cables (15) must follow through the impact head of the invention restricts movement of the cable (15) through the head, thereby providing sufficient friction to slow down the movement of the impact head during a vehicle impact. Also disclosed is a method of constructing a guardrail including the steps of slidably interconnecting a plurality of rails and attaching them to posts, positioning the impact head as claimed at one end of the slidably interconnected rails, threading at least one cable through the impact head and anchoring the cable to the ground.
Une tête d'impact pour une glissière de sécurité (1) comprenant des moyens de passage de câbles (2) conçus pour former un canal vrillé dans lequel il est possible de tirer un câble. Le canal vrillé par lequel les câbles (15) traversent la tête d'impact limite le déplacement du câble (15) en traversée de tête, ce qui crée suffisamment de frottement pour ralentir le déplacement de la tête d'impact pendant la percussion du véhicule. L'invention concerne également un procédé de construction d'une glissière de sécurité. A cet effet, on commence par relier entre elles en coulissement une pluralité de glissières et les fixer aux potelets. On dispose ensuite les têtes d'impact conformément aux revendications à une extrémité des glissières reliées entre elles en coulissement. Enfin, on tire le câble considéré en traversée de la tête d'impact, et on ancre le câble dans le sol.
Armorflex Limited
Axip Limited
Ridout & Maybee Llp
LandOfFree
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