Patent attributes
A roof airbag device includes a roof airbag housed in a part that includes a front end side in a vehicle longitudinal direction in a center part in a vehicle width direction of a roof. The roof airbag includes: a front deployed part that is deployed in front in a vehicle longitudinal direction with respect to an occupant such that a lower end side in a vehicle up-and-down direction overlaps with an instrument panel in an up-and-down direction in a rear view; a rear deployed part that is at least partially deployed between right and left seats; and a thin deployed part that is deployed in a state connected with the front deployed part and the rear deployed part and surrounded by these deployed part, and in non-inflation or in inflation at a thickness thinner than an inflation width of the inflated and deployed part in a vehicle width direction.