초록 ▼

The invention relates to an airbag module comprising a gas generator, diffuser and a gas bag. The invention is characterized in that the gas generator (5) is arranged in a diffuser (1) or housing of the gas generator with a stepped structure when seen in a longitudinal section. The diffuser (1) or t

The invention relates to an airbag module comprising a gas generator, diffuser and a gas bag. The invention is characterized in that the gas generator (5) is arranged in a diffuser (1) or housing of the gas generator with a stepped structure when seen in a longitudinal section. The diffuser (1) or the housing of the gas generator extends in the lower region of the side wall (2) at a distance from the gas generator (5). The lower region of the side wall (2) extends beyond the gas generator (5) in the direction of the occupant. The diffuser (1) or the housing of the gas generator (5) has a smaller cross-section than the gas generator (5). Openings (6,16) through which the gas from the gas generator flows into the gas bag (10) are arranged in a perpendicular position to the occupant. The upper (4) and lower (2) regions of the side wall are connected to each other by at least one deformable center area (3) of the side wall. One advantage provided by the inventive device is that the section of the diffuser that is located above the gas generator can, by virtue of its deformable center area, be moved out of the way of an occupant colliding therewith, thereby reducing the risk of injury.

대표청구항 ▼

1. Airbag module having a gas bag, gas generator and a module cover having a tear-open area is arranged above the gas generator wherein the gas generator is mounted essentially coaxially in a diffuser which encloses the gas generator and is provided with outflow openings, and the diffuser extends in

1. Airbag module having a gas bag, gas generator and a module cover having a tear-open area is arranged above the gas generator wherein the gas generator is mounted essentially coaxially in a diffuser which encloses the gas generator and is provided with outflow openings, and the diffuser extends in a side wall area at a distance from the gas generator, the side wall area thereby extends beyond the gas generator upwards towards the tear-open area of the module cover and encloses at least substantially the same cross-section as a side wall area adjacent the gas generator;wherein the diffuser has a stepped construction with a lower side wall area, an upper side wall area and a central side wall area which connects the upper wide wall area and the lower side wall area and which defines a step therebetween, wherein the lower side wall area extends a distance from the gas generator and beyond the gas generator towards the tear-open area of the module cover, the diffuser has in an upper side wall area a smaller cross-sectional surface than the gas generator and in this area the outflow openings are provided for the gases of the gas generator to discharge into the gas bag transversely to a longitudinal axis of the diffuser, and wherein the central side wall area is deformable relative to the upper side wall and the lower side wall.