Bonnet e.g. front opening bonnet, for motor car, has supporting element locally filling intermediate space between outer shell and stiffening layer and formed by foam, which expands in intermediate space, where layer locally supports shell

摘要

The bonnet has a stiffening layer (1) locally supporting an outer shell (2) at contact points (4), and extending between the points at a distance from the shell. A supporting element (7) locally fills an intermediate space between the shell and the layer. The supporting element is formed by foam, which expands in the intermediate space. The contact points together with the supporting element forms a grid or web structure in a top view. The supporting element is stretched transverse to the adjacent contact points. The contact points are designed as apexes of stretched ribs (8) of the layer.