Patent ID: 8840135

Claim:
An airbag device for a vehicle, the airbag device comprising: an airbag that, on an activation of the airbag device, is transferred from a compact state into an expanded state, wherein the airbag has a head region, a thorax region, and a pelvis region; and a gas generator for generation of gas; wherein, in the expanded state of the airbag, the head region is configured for protection of a head of an occupant situated on a vehicle seat, the thorax region is configured for protection of an upper body of the occupant, and the pelvis region is configured for protection of a pelvis of the occupant; wherein the airbag is configured as a single-chamber side airbag; wherein the airbag device has a diffuser with a first diffuser opening and a second diffuser opening, wherein the diffuser is configured to direct the gas, which is generated by the gas generator, as a first gas stream through the first diffuser opening into a first flow direction and as a second gas stream through the second diffuser opening into a second flow direction, wherein the first flow direction and the second flow direction differ from one another; wherein the head region has a back-of-head section and a front-of-head section, wherein the back-of-head section is configured for protection of a back of the head and the front-of-head section is configured for protection of a face of the occupant, when the airbag has the expanded state, wherein the back-of-head section and/or the front-of-head section is/are turned-in, flapped, folded and/or flapped in a Z-fold transversely to the second flow direction to assume the compact state of the airbag; and wherein the airbag in the compact state has an upper roll and a lower roll, wherein a turned-in, folded, flapped and/or Z-fold flapped back-of-head section and/or a turned-in, folded, flapped and/or Z-fold flapped front-of-head section is/are rolled up facing away from the occupant and form(s) the upper roll and wherein a turned-in pelvis region together with the thorax region is rolled up towards the occupant and forms the lower roll, wherein the upper roll is rolled over by the lower roll.