A pedestrian airbag arrangement

摘要

1. There is disclosed a pedestrian airbag arrangement on a motor vehicle (24) having a windscreen (27). The arrangement has an airbag (1) defining an inflatable volume for the receipt of inflating gas, said inflatable volume (1) having a primary chamber(8) configured for inflation upon deployment of the airbag so as to extend over or across at least part of the windscreen (27); and at least one secondary chamber (20) external of the primary chamber. The at least one secondary chamber (20) is configured for inflation upon deployment of the airbag (1) so as to adopt a respective deployed position between the primary chamber (8) and the windscreen (27) to thereby space the primary chamber (8) from the windscreen (27). The arrangement is characterised in that said primary chamber (8)) has a dividing structure (4) which at least partially sub-divides the primary chamber into respective inflatable cells (9,10) located on opposite sides of the dividing structure (4), and by said at least one secondary chamber (20) traversing the dividing structure (4) so as to extend outside the primary chamber (8) from one side (9) of the dividing structure (4) to an opposite side (10) of the dividing structure. The primary chamber (8) and the at least one secondary chamber (20) are formed from flexible material, and the material forming the at least one secondary chamber (20) is connected to the material forming the primary chamber (8) only at a first position (18) located to one side of the dividing structure (4) and at a second position (19) located to the other side of the dividing structure (4). The material of the at least one secondary chamber (20) is unconnected to the material of the primary chamber (8) in the region of said dividing structure (4) between said first and second positions (18,19).