Energy absorption devices

摘要

A slider assembly including a front section, and a back section, where the front section is adapted to conform to the cross sectional profile of rails forming the terminal end of a guardrail, or other barrier, to which the slider assembly will be fitted in use. The front section in combination with the back section create an internal space therebetween capable of substantially surrounding both an associated first rail and an associated second rail of the terminal end, and at least two further rails located downstream of the first and second rail. The slider assembly includes first and second opposed portions configured to move with respect to each other so the slider assembly can, in use, apply an increasing compressive force to telescoping rails as a consequence of the slider assembly travelling along one or more subsequent rail(s) during telescoping.

主权项

1. A guardrail assembly comprising a slider assembly and a guardrail, the slider assembly including:
a front section; and a back section including first and second opposed portions and a slot or gap between the first and second opposed portions, wherein the front section is profiled to conform to a cross sectional profile of a rail forming a terminal end of the guardrail, and wherein the front section in combination with the back section create an internal space therebetween, the internal space dimensioned, so as to surround both an associated first rail and an associated second rail of the terminal end, as well as at least two further rails located downstream of said first and second rail, and wherein the slot or gap between the first and second opposed portions forms a deformable region of the slider assembly that, upon deformation, enables the first and second opposed portions to move with respect to each other to reduce a dimension of the internal space, the reduction in the dimension, in use, applies an increasing compressive force to the associated first rail and the associated second rail of the terminal end, as well as the at least two further rails located downstream of said first and second rail as a consequence of the slider assembly travelling along one or more subsequent rail(s) during telescoping; wherein the slider assembly has an upstream end and a downstream end and wherein the back section includes the slot or gap in the form of a substantially horizontal slit therein which opens only to an upstream edge of the back section.