| 摘要 |
A vehicle bumper and underride crash guard protection device to prevent other vehicles underriding the protected vehicle. The bumper or guard system uses pre-tensioned brake plates which absorb energy by moving at a predeterimined force. The bumper structure has a pivoting arrangement such that upon contact of the main bumper guard by a vehicle, the pivoting member transmits the horizontal force of the moving vehicle to the pre-tensioned energy absorption devices usually located under the vehicle. The bumper system allows large, load-carrying vehicles to comply with certain vehicle regulatory requirements for a crash guard bumper with the capability of deforming, moving or absorbing crash forces at predetermined impact points in a predetermined and regulated fashion.
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