BUMPER MINIMIZING DAMAGE TO A CAR BODY IN THE LOW SPEED COLLISION, WHICH ABSORBS COLLISION ENERGY USING A CRASH BOX

摘要

PURPOSE: A bumper minimizing damage to a car body in the low speed collision is provided to prevent damage to a tailgate and a floor panel by increasing an elongation percentage.;CONSTITUTION: A bumper minimizing damage to a car body in the low speed collision comprises am impact beam(10) and crash boxes(22,24). The impact beam contacts with a collision object. The crash box is formed on both sides of the back side longitudinal direction of the impact beam. The crash box contains a second material. The second material has the elongation ratio higher than the first material of the impact beam and has low strength.;COPYRIGHT KIPO 2010