| 摘要 |
PURPOSE: A bumper back beam for vehicles is provided to maintain proper deformation when a shock is applied by forming spaces between the back beam and a stiffener. CONSTITUTION: A bumper back beam(100) for vehicles comprises an impact part(50), a tower part(60), and a stiffener(80). The impact part is placed at the center of the bumper back beam. The tower part is formed at the rear parts of both sides of the impact part, and fixed to a crash box mounted on the front end of a side member. The stiffener is formed in a closed section. The stiffener is formed with a smaller curvature(R1) than the curvature of the back beam. An available space(S) is formed between the back beam and the stiffener on both sides. |
