ENERGY ABSORBER FOR REAR BUMPER OF VEHICLE

摘要

PURPOSE: The energy absorber for a rear bumper is provided to reduce the weight of a vehicle body and to enhance the working efficiency of manufacturing the rear bumper by combining separate front and rear portions fabricated of foam resin having different bubbling ratios and mounting such front and rear portions to the vehicle body frame. CONSTITUTION: An energy absorber of a rear bumper comprises a front portion(110) and a rear portion(150). A front surface(112) of the front portion(110) contacts an inner surface of a facia and is shaped in the form corresponding to the facia. The front portion(110) is rounded at the upper edge thereof. The front portion(110) is formed with a plurality of shock dispersing grooves at the lower side thereof. Each of upper and lower surfaces of the front portion(110) has a downward directed oblique surface. A back surface of the front portion(110) is fabricated of foam resin having a predetermined bubbling ratio such that the back surface takes a form consisting of multiple concave and convex portions. A front surface of the rear portion(150) has upper and lower surfaces which are continuous to the upper and rear surface of the front portion(110). A back surface(154) of the rear portion(150) extends to a back panel and is shaped to conform to the shape of the back panel. The back surface(154) is fabricated of foam resin having a predetermined bubbling ratio which is different from that of the back surface(130) of the front portion(110). The back surface(154) has a corresponding multiple concave and convex portions such that the back surface(154) engages the back surface of the front portion(110).