Highway crash cushion

E - Fixed Constructions – 01 – F

Patent

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Details

E01F 15/14 (2006.01) B60R 19/00 (2006.01) F16F 7/12 (2006.01) B60R 19/26 (2006.01)

Patent

CA 2199300

A support frame attaches a truck mounted attenuator to a backup vehicle. The support frame includes a rear section connected to a front section by a linkage which includes two spaced side frames. The side frames each include three hinges, with the intermediate hinge arranged to fold outwardly in an impact. The hinges pivot about vertical hinge axes such that the front section is supported during pivoting of the hinges. The support frame is held in an initial configuration by restraining cables connected between the linkage and the front section. The cables are releasably secured to the front section by a trigger mechanism which is activated by the position of a probe mounted to the TMA.

Le cadre de soutien en question permet de fixer un amortisseur d'impact monté sur camion à un véhicule de réserve. Le cadre de soutien comprend une section arrière rattachée à une section avant par un raccordement qui comprend deux cadres latéraux espacés. Les cadres latéraux comprennent chacun trois charnières, la charnière intermédiaire étant conçue pour se replier vers l'extérieur lors d'un impact. Les charnières pivotent autour d'axes verticaux de manière à ce que la section avant soit supportée lorsque les charnières pivotent. Le cadre de soutien est maintenu dans sa configuration initiale par des câbles de retenue attachés entre le raccordement et la section avant. Les câbles attachés à la section avant peuvent se détacher sous l'action d'un mécanisme de déclenchement commandé par un détecteur de position monté sur l'amortisseur.

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