Shock absorber and manufacturing procedure thereof

摘要

The present invention relates to an energy absorbing element intended to absorb the impact energy on vehicle doors constituted by a structure in hollow prismatic cells delimited by two bases parallel to their longitudinal axes, manufactured by extrusion, which results in a continuous piece from which by means of cutting the energy absorption element is obtained with a projection adapted to the form of the area to be protected. The disposition of the hollow prismatic cells is transversal to the direction of the force of the impact resulting in an energy absorption behaviour very close to optimal. The use of foams is also envisaged which allow the response curve of the absorbing element to be adapted without requiring the use of different extrusion dies.