Patent ID: 7267364

Claim:
A curtain airbag device, comprising: a curtain airbag that is capable of being deployed downward along an inner side surface of a vehicle cabin; and a guide element attached to a pillar of a vehicle and extending in the vertical direction, guiding the curtain airbag for the downward deployment, wherein the curtain airbag comprises: a first vertical chamber that is inflatable to protrude along the guide element from an upper end to a lower end of the curtain airbag, wherein the first vertical chamber is positioned so that a centerline dividing the first vertical chamber in the width direction is inclined within a range of ±20° with respect to the vertical direction of the vehicle cabin, and wherein the curtain airbag further comprises vertical chambers extending from the upper end to the lower end of the curtain airbag; and when the curtain airbag is deployed, a horizontal sectional area of the first vertical chamber is larger than those of the vertical chambers.