Frontal impact energy absorbing device for motor vehicle, has foam with energy absorbing properties, housed in casing, fixation plate fixing device on part of vehicle, and deformation element with reinforcements, formed by casing edges

摘要

The device (2) has a metallic foam i.e. aluminum foam (12), with impact energy absorbing properties, housed in a casing (10), and a rectangular shaped fixation plate (6) fixing the device on a part e.g. runner, of a motor vehicle, where the device is made of metallic material e.g. aluminum alloy and steel. A deformable element (8) permits a progressive removal of the foam during absorption of frontal impact energy, where the element is in the form of a plate (18) that is fixed to the plate (6). The element with reinforcements is formed by folded edges of the casing.