Patent ID: 7654559

Claim:
An airbag apparatus comprising: an airbag which is inflated and expanded from a state of being folded into a long-thin shape upon introduction of gas; a supporting body fitted to a to-be-fitted member; a cover body comprising: a main part covering the airbag in a folded state along a longitudinal direction, a fitting part disposed on one side of the main part along the longitudinal direction and supported by the supporting body, and an engaging part disposed on the other side of the main part along the longitudinal direction; an engagement receiving part disposed on the supporting body, engaged with the engaging part in a disengageable manner, supporting the main part via the engaging part at folded state of the airbag, and releasing the engagement of the engaging part on expansion of the airbag, thereby allowing for movement of the main part; and a hinge provided on the supporting body and separate from the cover body supporting the fitting part, wherein the hinge is plastically deformable on expansion of the airbag.