초록 ▼

An anti-terrorist vehicle crash barrier includes side support structures, crushable energy absorbing aluminum honeycomb modules, and an elongated impact-resistant beam extending between, and at its opposite ends through vertical guideways defined by, the side support structures. An actuating mechani

An anti-terrorist vehicle crash barrier includes side support structures, crushable energy absorbing aluminum honeycomb modules, and an elongated impact-resistant beam extending between, and at its opposite ends through vertical guideways defined by, the side support structures. An actuating mechanism supports the beam at its opposite ends for movement between a lowered barrier-withdrawn position in which a traffic-supporting side of the beam is aligned with a traffic-bearing surface permitting vehicular traffic between the side support structures and over the beam, and a raised barrier-imposed position in which the beam is aligned with horizontal guideways defined in the side support structures above the traffic-bearing surface, providing an obstruction to vehicular traffic between the side support structures. The beam is movable rearwardly in the horizontal guideways with its opposite ends disposed transversely therethrough upon being impacted at its forward side by an incoming vehicle. The crushable modules are replaceably disposed in the horizontal guideways between aft ends thereof and the beam. The beam, replaceable modules, side support structures and actuating mechanism are separate and detached from one another such that the beam and replaceable modules are capable of coacting to disable and stop an incoming vehicle without causing structural damage to the side support structures and actuating mechanism.

대표청구항 ▼

A vehicle crash impact energy absorbing barrier, comprising: (a) a pair of side support structures stationarily-mountable at opposite sides of an entrance to a facility, each support structure defining a generally horizontal guideway displaced above a vehicular traffic-bearing surface and having a f

A vehicle crash impact energy absorbing barrier, comprising: (a) a pair of side support structures stationarily-mountable at opposite sides of an entrance to a facility, each support structure defining a generally horizontal guideway displaced above a vehicular traffic-bearing surface and having a forward end and closed aft end; (b) an elongated substantially impact-resistant beam having a pair of opposite ends, a forward impact-receiving side and an opposite rearward side, said impact beam being adapted to extend between said side support structures and at said opposite ends of said beam extend in transverse relation through said horizontal guideways of said side support structures for providing an obstruction to vehicular traffic between said side support structures through the facility entrance, said impact beam being slidably movable along said horizontal guideways toward said aft ends thereof upon being impacted at its forward side by an incoming vehicle; and (c) a pair of members being disposed in said horizontal guideways of said side support structures between a rearward side of said impact beam and said closed aft ends of said horizontal guideways, said members being adapted to absorb at least a significant portion of the kinetic energy produced by impact of the incoming vehicle against said forward side of said impact beam such that said beam and members are capable of coacting to disable and stop the incoming vehicle without causing structural damage to said support structures.