Patent ID: 6460879
Filing Date: 2002-10-08
Classification: B60R

Abstract:
An air bag in use for a head protection air bag device, said air bag being stored along a peripheral edge of an upper fringe of an opening on an indoor side of a vehicle in a state that said air bag is covered with a door of an air bag cover and folded, and when receiving inflation gas, said air bag forcibly opening said door, and developing and inflating downward so as to cover said opening, said air bag comprising:a cabin-inside side wall; a cabin-outside side wall; an inflating section formed between said cabin-inside side wall and said cabin-outside side wall, into which gas for inflation flows; and a plurality of thickness defining members each formed by partially coupling said cabin-inside side wall and said cabin-outside side wall in a region of said inflating section, each of said thickness defining members being arranged side by side in a front and rear direction and extending in the vertical direction; wherein a first thickness defining member disposed near an unsmooth development part of said door is disposed such that an upper end thereof is located at a position lower than an upper end of a second thickness defining member which is disposed adjacent to said first thickness defining member as well as farther than said first thickness defining member from said unsmooth development part in a state that said air bag is developed flat.