Patent attributes
An attachment structure comprises a top ceiling, a cover member to cover a window glass from the inside of a vehicle compartment, an airbag which is stored along an upper edge portion of the window glass in its non-operation state and inflates downward through a gap which is formed between the window glass and the side end portion of the top ceiling which is pressed down by the airbag receiving a gas pressure from an inflator; and support members to support the cover member longitudinally at a position which is on an outside of the inflating airbag. Accordingly, the proper inflation of the airbag can be provided despite of the cover member at the window.