Head protection airbag device for vehicle

Abstract

At a time of deployment of an airbag, a rear portion of the airbag and a tension imparting member are prevented from hooking on an upper end of a quarter pillar garnish and impeding deployment of the airbag. An airbag () is contained along a door opening (). An upper expansion portion (D) is formed on an upper edge side of a rear seat expansion portion (B), and a rear expansion portion (E) is formed at a rear end side upper portion. The upper expansion portion is expanded and deployed at the compartment outer side of a terminal part (A). A rear end side attachment portion (E) is set at the rear end side of the rear expansion portion (E), and the rear expansion portion expands inside a quarter pillar garnish (). A rear end lower portion of the rear seat expansion portion is coupled to the vehicle body by a rear side strap (). A border portion () between a roof head lining () and the pillar garnish is specified such that a deployment area (Q) of the upper expansion portion falls within a range where the roof head lining is arranged.