E - Fixed Constructions – 01 – F
Patent
E - Fixed Constructions
01
F
E01F 15/00 (2006.01) E01F 15/14 (2006.01) F16F 7/12 (2006.01)
Patent
CA 2120780
An energy absorbing device for use alongside a roadway to decelerate an impacting vehicle includes first and second elements. The first element extends in an axial direction and includes a threaded portion that defines a multitude of projecting ridges. The second element is movable relative to the first element in the axial direction, and the first and second elements are sized to create an interference fit such that relative axial movement of the second element applies a shear load to the first element to progressively deform successive ones of the projecting elements. This progressive deformation of the projecting elements retards relative axial movement between the first and second elements.
Glissière de sécurité en deux éléments conçus pour réduire la vitesse d'un véhicule. Le premier élément, dont la dimension principale est dans l'axe de la glissière, comporte des sculptures en saillie. Le deuxième élément peut se déplacer dans l'axe du premier. Les deux éléments sont assemblés avec un ajustement serré, de sorte que le mouvement axial du deuxième élément exerce sur le premier une contrainte de cisaillement qui a pour effet de déformer successivement les sculptures en saillie. La déformation progressive des sculptures successives ralentit le déplacement axial du deuxième élément par rapport au premier.
Denman Owen S.
Gertz David C.
Cassan Maclean
Energy Absorption Systems Inc.
LandOfFree
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