Inflatable airbag with pre-determined three-dimensional shape
First Claim
1. An inflatable gas bag for an occupant restraint system in a vehicle, said gas bag comprising a thermally molded multilayer textile composite comprising at least one layer of textile fabric material and at least one layer of fusible polymer material, wherein the melting point of said fusible polymer material is lower than the melting point of said textile fabric material and wherein said fusible polymer material has been fused to said textile fabric material in a predetermined three-dimensional shape substantially corresponding to the inflation profile of said gas bag.
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Accused Products
Abstract
An inflatable gas bag (10) for an occupant restraint system of a vehicle, in particular of a motor vehicle. In order to avoid the formation of creases in the inflated state, which occurs with conventional gas bags and in order to be able to employ more lightweight textile materials for the manufacture of a gas bag, the gas bag (10) consists of a multilayered textile composite material which comprises at least one layer of a textile material and one layer of a polymer material whose melting range is lower than the melting range of the textile material. The textile composite material is formed into a specified three-dimensional shape which is to develop during inflation of the gas bag (10), and the individual layers of the textile composite material are joined together in this three-dimensional shape.
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Citations
8 Claims
- 1. An inflatable gas bag for an occupant restraint system in a vehicle, said gas bag comprising a thermally molded multilayer textile composite comprising at least one layer of textile fabric material and at least one layer of fusible polymer material, wherein the melting point of said fusible polymer material is lower than the melting point of said textile fabric material and wherein said fusible polymer material has been fused to said textile fabric material in a predetermined three-dimensional shape substantially corresponding to the inflation profile of said gas bag.
Specification