Patent attributes
An annular airbag is disclosed, of the type where the center piece (12) of the steering wheel cover (11) (mostly embodied as the emblem of the vehicle producer) remains in place during the unfolding process. In order to prevent a vehicle occupant impacting the hole arising above the center piece with an inflated airbag, the tubular region (17) of the airbag above the center piece is embodied such that the cross-sectional area thereof in the inflated state reduces in the direction of the upper plate of the airbag from the center piece (12). The above is achieved, for example, by means of a special forming of the tubular region, by provision of pockets (21) and/or folds (31), the use of special materials, a special fixing of the airbag to the airbag module (9), or the fitting of tension straps (50).
