Impact bumper for vehicle - has pair of concertina-shaped springs between pair of vertical supports and space between them is filled with impact damping material

摘要

The bumper has two buttress springs (3,4) extending between two vertically arranged stiff supports (1,2) placed parallel to each other. The springs fill the gap between the two supports using concertina profiles, and are firmly joined to the supports in the region of their longitudinal edges (5) by spot welding. The gap (9) between the springs can be filled with a plastics foam material. At least one of the supports has a stop (10) facing toward the other support. ADVANTAGE - Has a relatively large deformation path and is self-regenerating following a minor impact.