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US 6,183,009 B2Granted
Inflatable airbag and a method of manufacturing the same
OwnerJoseph Rychter, Wilhelm Karl Lehmanninventors
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OwnerJoseph Rychter, Wilhelm Karl Lehmanninventors
Estimating the term…
The invention relates to 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.
An inflatable gas bag for an occupant restraint system in a vehicle, said gas bag comprising a thermally molded multilayer textile composite comprising two layers of textile fabric material and at least one layer of fusible polymer material disposed between said two layers, 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.
A method for manufacture of an inflatable gas bag for use in a vehicle restraint system comprising the concurrent steps of:
Dependencies are inferred from the claim text.