Patent ID: 8801030

Claim:
A curtain airbag device comprising: a curtain airbag for being deployed in an interior of a vehicle cabin; a folded body of the curtain airbag disposed in a space between a vehicle body member and a side edge portion of a roof lining; and an inflator that inflates the curtain airbag, wherein the curtain airbag includes: a gas introduction portion positioned at a level above an upper end of a pillar garnish, the gas introduction portion extending upward from a curtain airbag main body, a gas being introduced from the inflator to the curtain airbag main body through the gas introduction portion, and an upper, pleat-folded portion and a lower, roll-folded portion of the curtain airbag main body in the folded body of the curtain airbag with the pleat-folded portion being sized so that upon airbag deployment, the upper, pleat-folded portion inflates to advance the lower, roll-folded portion down beyond the upper end of the pillar garnish prior to inflation thereof, wherein, in a state in which the curtain airbag is folded into the folded body thereof, the gas introduction portion is disposed on a side surface of the folded curtain airbag main body, the side surface being located to face the vehicle body member with the gas introduction portion being folded into a predetermined number of layers that extend along the side surface of the folded curtain airbag main body including both the upper, pleat-folded portion and the lower, roll-folded portion thereof, the predetermined number of layers of the gas introduction portion being selected to control pushing of the folded curtain airbag main body inwardly into the vehicle cabin interior by inflation of the gas introduction portion prior to inflation of the upper, pleat-folded portion and the lower, roll-folded portion of the curtain airbag main body.