Patent ID: 9731676
Date: 2017-08-15
CPC Classifications: B60R

Claim:
1. A curtain airbag device comprising: an inflator configured to generate a gas; and a curtain airbag to be attached along an upper edge of a side window portion of a vehicle body in a state where the curtain airbag is folded using a predetermined procedure, wherein: the curtain airbag includes an airbag body to be supplied with the gas from the inflator to inflate, and the airbag body inflates and deploys downward by generation of the gas so as to cover the side window portion on a vehicle interior side; wherein: the airbag body includes: wherein: the airbag body includes: wherein: at least one of the chambers disposed at a lower end portion of the airbag body is provided with a bend-facilitating portion composed of a non-inflating portion of the airbag body and facilitating bending of the airbag body during inflation and deployment of the airbag body, the bend-facilitating portion is disposed so as to correspond to a position between front and rear end portions of the side window portion on the rear side in a front and rear direction of the vehicle body, the at least one of the chamber including the bend-facilitating portion includes a passage for distributing the gas such that the gas comes around the bend-facilitating portion in one direction, and the rear inflating portion includes a lower edge disposed at a position identical to or above a lower end position of the side window portion on the rear side when the curtain airbag in a state of being attached to the vehicle body is spread without a supply of the gas, the lower edge deforming downward from the lower end position of the side window portion on the rear side by bending of the airbag body at the bend-facilitating portion serving as an origin during inflation and deployment of the airbag body.