Patent ID: 6913282

Claim:
A head-protection airbag device, comprising: an airbag stored along a roof side rail, and including a gas-introducing path provided at its upper edge and a plurality of inflation chambers, the plurality of inflation chambers comprising direct inflation chambers and indirect inflation chambers; a gas distribution pipe provided within the gas-introducing path, for introducing into the plurality of inflation chambers a gas supplied from a gas supplier; and a plurality of gas outlets provided in the gas distribution pipe, each gas outlet disposed corresponding to at least one direct inflation chamber; wherein: gas is supplied from the gas supplier into the plurality of inflation chambers through the plurality of gas outlets of the gas distribution pipe; the airbag is inflated and deployed like a curtain along a sidewall of a vehicle compartment so as to protect a head of a seated occupant; each direct inflation chamber has a smaller volume than each indirect chamber; and each direct inflation chamber is disposed at a location away from a head-rest of an adjacent seat in a fore-and-aft direction of a vehicle.