Patent ID: 8789845

Claim:
An air bag system comprising: a side air bag that is housed folded up in a vehicle seat or a vehicle body side portion, and the side air bag inflates by receiving a supply of gas when a side collision of a vehicle occurs, and the side air bag deploys between an occupant seated in the vehicle seat and the vehicle body side portion; a curtain air bag housed folded up in an upper edge portion of an opening for getting into and out of the vehicle, in the vehicle body, and the curtain air bag inflates by receiving a supply of gas when a side collision of the vehicle and a rollover of the vehicle occur, and the curtain air bag deploys in a curtain shape downward with respect to the vehicle; and a delayed deployment portion provided in the curtain air bag, and the delayed deployment portion inflates later than a main deployment portion of the curtain air bag and the delayed deployment portion inflates after a completion of inflation of the side air bag, the delayed deployment portion inflates by receiving a supply of gas through a narrowed passage from the main deployment portion of the curtain air bag, the delayed deployment portion includes a first delayed deployment portion and a second delayed deployment portion, the first delayed deployment portion receives a supply of gas through a narrowed passage from the main deployment portion of the curtain air bag, the second delayed deployment portion receives a supply of gas from the first delayed deployment portion, and the first delayed deployment portion deploys with an upper end side connected to the curtain air bag and the second delayed deployment portion deploys with a lower end side below a beltline and in an area that overlaps with a deployment area of the side air bag, the delayed deployment portion includes a restricting structure that restricts the supply of gas to the second delayed deployment portion from the first delayed deployment portion until an internal pressure of the first delayed deployment portion exceeds a predetermined value.