Patent ID: 7802829
Filing Date: 2010-09-28
Classification: B60D,B60R,B62D,E01F,G08G

Abstract:
1. A crash impact attenuator for attachment to a host vehicle, comprising: an attachment system having an internal support tube and a plurality of external support tubes, the internal support tube having a connector on a front end thereof for attachment to a receptacle on the host vehicle and the plurality of external support tubes each having an anti-rotation support pad on a front end thereof, wherein the internal support tube is comprised of a telescoping construction, having an internal fixed tube and an external telescoping tube; a backup frame disposed on a rear end of said attachment system; a crash attenuator unit, said crash attenuator unit being disposed on an axle and pair of wheels for mobility; and a shear pin disposed in said internal support tube, said shear pin being adapted to break upon impact on the crash impact attenuator by an errant vehicle, thus releasing the internal support tube to telescope to a collapsed orientation, so that the external support tubes move forwardly to engage a stop plate on the host vehicle.