Patent ID: 7810840

Claim:
An airbag for automotive vehicles the inflatable cushion ( 13 ) of which has at least one gas venting opening ( 11 ) and includes a gas venting regulation device assembled around said opening ( 11 ), said airbag comprising: a) a first part ( 15 ) joined to the inflatable cushion ( 13 ) covering the venting opening ( 11 ), formed by an elastic area ( 31 ) and a non-elastic area ( 33 ) with a plurality of openings ( 17 , 19 ) for the passage of gas; b) a second rigid part ( 21 ) joined to the inflatable cushion ( 13 ) and to said first part ( 15 ), with a projecting neck ( 23 ) forming a gas outlet mouth; and in which at least one part of said non-elastic area ( 33 ) is arranged such that when the first part ( 15 ) is deformed as a result of the internal pressure in the inflatable cushion during its deployment, the passage of gas through its openings ( 17 ) is completely or partially sealed by said projecting neck ( 23 ); wherein said non-elastic area ( 33 ) comprises a first sub-area with an opening ( 19 ) located in the center of the first part ( 15 ) and a second sub-area with a plurality of openings ( 17 ) located in the periphery of the first part ( 15 ), said elastic area ( 31 ) being located between both sub-areas.