Patent attributes
A airbag arranged on a vehicle roof for protecting the occupant located under which includes a cushion (11), a gas generator (13) and an outer cover (17) with a weakened area (45) to allow cushion (11) exit, further comprising an inner casing (23) including a fixing area (31) for fixing it to a vehicle roof header (29), an area (33) for housing the generator (33) and a diffusion channel (35) for diffusing the gas into the cushion (11), having a first portion (51) of the cushion (11) located along the inner contour of the inner casing (33) such that the gas is received in the initial area of the diffusion channel (35) and a second portion (53) located, in the folded state, in an enclosure demarcated by at least portions of the inner casing (33) and outer cover (17).