CRASH BOX HAVING LOW WEIGHT AND IMPROVED IMPACT ABSORBTION ABILITY

摘要

PURPOSE: A crash box with a slope rib for lightening the weight and alleviating the impact is provided to lighten the weight by manufacturing with a GMT material and to improve fuel efficiency of a vehicle. CONSTITUTION: A crash box comprises a single box layer and a bumper beam. A flat cross-section of the single box layer is formed in a rectangular shape and is laminated. The crash box is formed such that the width of the single box layer which is connected to the bumper beam is wide and the width of the single box layer which is connected to the frame of a vehicle is narrow. The entire cross-section is formed in a trapezoidal shape.