Bumper absorber and manufacturing method for the same

A bumper absorber that is provided on an automobile between a bumper reinforcement and a bumper fascia that is more toward a vehicle exterior side than the bumper reinforcement, comprising:

• a first energy absorbing portion formed by foaming a resin molded material;
• the first energy absorbing portion extending from the bumper reinforcement toward the bumper fascia;
• a second energy absorbing portion formed by a resin molded material;
• the second energy absorbing portion extending from the bumper reinforcement toward the bumper fascia at a position where a space that permits buckling of the second energy absorbing portion is formed between the first energy absorbing portion and the second energy absorbing portion on a bumper reinforcement side;
• a crosslinking portion disposed facing a vehicle interior side of the bumper fascia;
• and
• the crosslinking portion fastening the first energy absorbing portion and the second energy absorbing portion together while sealing at least half of an area of an opening between the first energy absorbing portion and the second energy absorbing portion on a bumper fascia side;
• wherein a plurality of the first energy absorbing portions is disposed from the crosslinking portion toward the bumper reinforcement such that a groove-shaped recessed portion is formed on the bumper reinforcement side;
• the second energy absorbing portion is formed into a plate shape;
• the second energy absorbing portion extends from the crosslinking portion toward the bumper reinforcement into the recessed portion at a position where the space is formed that permits buckling of the second energy absorbing portion;
• a density of the second energy absorbing portion is 0.9 to 1.2 g/cm3;
• and
• the crosslinking portion fastening the first energy absorbing portion and the second energy absorbing portion together is formed by foaming a resin molded material.