Abstract: A knee airbag for a vehicle occupant restraint device can adopt a deployed position of use between a fixed vehicle component and the legs of a vehicle occupant. The airbag includes an airbag sheath, at least one exhaust orifice formed therein and control features for selectively releasing the exhaust orifice. The control features are disposed inside the knee airbag and arranged so as to release or block the exhaust orifice depending on the expansion of the knee airbag in a particular direction of expansion.

Abstract: A vehicle occupant restraint device having a knee airbag deployable between an instrument panel and the legs of a vehicle occupant and including an airbag sheath and at least one exhaust orifice formed therein. The vehicle occupant restraint device further has features for qualifying the build of the vehicle occupant, an activating unit for selectively releasing the exhaust orifice and a control which actuates the activating unit depending on the qualification of the build of the vehicle occupant.

Abstract: A vehicle occupant restraint device comprises a knee airbag (10) deployable between an instrument panel (32) and the legs of a vehicle occupant and including an airbag sheath (14) and at least one exhaust orifice (18) formed therein. The vehicle occupant restraint device further comprises a means for qualifying the build of the vehicle occupant, an activating unit (24) for selectively releasing the exhaust orifice (18) and a control means which actuates the activating unit (24) depending on the qualification of the build of the vehicle occupant.

Abstract: A knee airbag (10) for a vehicle occupant restraint device can adopt a deployed position of use between a fixed vehicle component (12) and the legs (14; 16) of a vehicle occupant. The knee airbag (10) comprises an airbag sheath (18), at least one exhaust orifice (20) formed therein and a control means for selectively releasing the exhaust orifice (20). The control means is disposed inside the knee airbag (10) and is arranged so as to release or block the exhaust orifice (20) depending on the expansion of the knee airbag (10) in a particular direction of expansion.