Head-protecting bag device for occupants in an automobile

In order to provide a head-protecting bag for an occupant in an automobile, which is not likely to be caught at an inner surface of a compartment and inflates extending downward along a lateral side of the compartment when the bag inflates to extend, a head-protecting bag (1) includes an intermediate folded-body thereof which is formed such that the lower portion of the head-protecting bag (1) is folded a plurality of times so as to overlap portions thereof facing toward the inside of a compartment (the side of a sheet (2)) along folding lines extending in a longitudinal direction of the automobile. Then, the intermediate folded-body of the head-protecting bag (1) is bellows-folded from the lower end to the upper end of the intermediate folded-body. Therefore, the lower edge of the head-protecting bag (1) is positioned toward the lower end side of the folded body. When the folded body of the head-protecting bag (1) deploys, the bellows-folded state in the vertical direction is firstly released, then, the lower portion of the head-protecting bag (1) overlapping the portions thereof facing the inside of the compartment deploys downward along the lateral side of the compartment and slightly separate from the lateral side of the compartment. Since the lower edge of the bag is positioned toward the lower end side of the folded body, the folded body inflates always downward along the lateral side of the compartment.