Patent ID: 8480122

Claim:
An airbag device comprising: a first bag that receives a gas supply and is inflated and expanded from a folded-up state within a rear portion of an instrument panel in a vehicle longitudinal direction to thereby restrain a vehicle passenger from a front side in the vehicle longitudinal direction; a second bag that: i) has a smaller volume than the first bag, ii) has a bag-body that is independent from the first bag, iii) receives the gas supply, and iv) is inflated and expanded from a folded-up state together with the first bag, in an interior of the first bag such that, when the first bag restrains the vehicle passenger, an upper end side portion of the second bag extending in a vehicle vertical direction contacts a windshield glass and a lower end side portion of the second bag contacts a surface of the instrument panel; an inflator that is configured to generate the gas supply to the first bag and the second bag; an internal pressure difference imparting structure that includes a gas discharge suppressing structure that is configured to: i) suppress discharging of gas that has been supplied to the second bag, and ii) make an internal pressure of the second bag higher than an internal pressure of the first bag, at least when the first bag restrains the vehicle passenger; and a gas flow path member that: i) is flexible, ii) is folded-up together with the first bag and the second bag, iii) is inflated and expanded by the gas supply from the inflator, and iv) directly supplies gas from the inflator to the first bag and the second bag respectively.