Patent ID: 7798517

Claim:
A knee-protecting airbag apparatus comprising an airbag module including an inflatable airbag and a mounting bracket for mounting the airbag module on a vehicle body structure, the apparatus being configured such that a mounting hole of the mounting bracket that is formed above and at the rear of the gravity point of the airbag module is fastened to a mounting seat of the vehicle body structure to mount the airbag module on the vehicle body structure, wherein: the airbag module includes: a retaining lug disposed above the gravity point of the airbag module and below the mounting hole of the mounting bracket for fixing the airbag module on the vehicle body structure tentatively, the retaining lug being configured to project toward the vehicle body structure and bent to be oriented toward the airbag module at a leading end thereof for engagement with a periphery of a retaining hole formed on the vehicle body structure such that a rearward rotation moment is generated to rotate the airbag module about an engaging point of the retaining lug and the periphery of the retaining hole; and a pressing plane disposed above the retaining lug, the pressing plane abutting on and getting supported by a receiving plane formed on the vehicle body structure at the working of the rotation moment such that the mounting hole of the mounting bracket is positioned on a fastening location of the mounting seat of the vehicle body structure.