AIRBAG APPARATUS

An airbag apparatus includes an airbag (8), a gas supplying unit (2) configured to supply gas to the airbag to expand the airbag, a housing (30) configured to support the airbag disposed therein, and a cover (20) configured to cover the airbag, wherein the housing has sidewalls (32) extending toward the cover, hooks (33) protruding from the sidewalls, and at least one guide (63) allocated to one of the sidewalls and situated below the hooks, wherein the cover has mount walls (50; 50a; 50b) to which the housing is mounted, and wherein the mount walls have engagement holes (51; 51a; 51b) formed therethrough such that a rotating movement of the cover around a lower tip (54) of one of the mount walls while the lower tip is rested against the guide causes the hooks to be inserted into the engagement holes of the one of the mount walls.