Airbag module
AssigneeDelphi Technologies, Inc.
InventorJohannes-Alexander Varcus
Life of this patent
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Abstract
The invention relates to an airbag module for motor vehicles, comprising an inflatable airbag (12) and a deflection pocket which is arranged in the region of an inflow opening of the airbag and which consists of at least two material layers, of which a lower layer (16a) has a flow-through opening (18) which is aligned with the inflow opening and is at least partly covered over by an upper layer (16b), and is secured at a holder element (22) for the airbag, with the upper layer being connected region-wise to the lower layer for forming radial gas propagation paths (24) for gas flowing via the deflection pocket into the airbag.
Claims16
Airbag module for motor vehicles, comprising an inflatable airbag (12) and a deflection pocket (16a, 16b) which is arranged in the region of an inflow opening (14) of the airbag (12) and which consists of at least two material layers (16a, 16b), of which a lower layer (16a) has a flow-through opening (18) which is aligned with the inflow opening (14) and which is at least partly covered over by an upper layer (16b), and is secured at a holder element (22) for the airbag (12), with the upper layer (16b) being connected region-wise to the lower layer (16a) for forming approximately radial gas propagation paths (24) for gas flowing via the deflection pocket (16a, 16b) into the airbag (12).
Airbag module in accordance with at least one of the preceding claims, wherein the holder element (22) is formed in the shape of a ring and both the inflow opening (14) of the airbag (12) and the flow-through opening (18) of the lower layer (16a) are bounded by the holder element (22).
Airbag module in accordance with at least one of the preceding claims, wherein the deflection pocket (16a, 16b) is arranged substantially completely within the airbag (12) at least when the airbag (12) is inflated.
Airbag module in accordance with at least one of the preceding claims, wherein the deflection pocket (16a, 16b) has a large number of gas propagation paths (24) which are in particular uniformly distributed in the peripheral direction.
Airbag module in accordance with at least one of the preceding claims, wherein the lower layer (16a) and the upper layer (16b) are connected to one another at least at one line-shaped or strip-shaped connection location (26).
Airbag module in accordance with at least one of the preceding claims, wherein the lower layer (16a) and the upper layer (16b) have at least substantially the same outer dimensions.
Airbag module in accordance with at least one of the preceding claims, wherein tie lower layer (16a) and/or the upper layer (16b) are/is formed at least approximately circularly.
Method for the manufacture of an airbag module for motor vehicles in accordance with at least one of the preceding claims, in which at least one further material layer (16b) is applied in such a manner to at least one present material layer (16a) which is provided as a heat shield for the airbag (12) that a deflection pocket (16a, 16b) with approximately radial gas propagation paths (24) for gas which flows via the deflection pocket (16a, 16b) into the airbag (12) is formed by the material layers.
Dependencies are inferred from the claim text.