Patent attributes
A case includes an opening at least at the lower region for receiving an airbag, and an engaging region engageable with a mounting bracket. The mounting bracket includes a mounting section which protrudes out of the case and a joint plate which is formed generally into a plate extending generally along an up and down direction and is disposed at a root region of the mounting section for engagement with the case. The engaging region of the case includes an insert slot which allows the joint plate to slide therein generally in an up and down direction, a retaining pawl which protrudes generally in an inboard-outboard direction and is inserted into a retaining hole of the joint plate and retains the joint plate, and an inboard side pressing surface and an outboard side pressing surface which press the joint plate retained by the retaining pawl on the inboard and outboard sides.