Patent ID: 8820781

Claim:
An attachment structure of an airbag module for attaching an airbag module to a steering wheel of a vehicle, the attachment structure comprising: an armature configured to be connected to a steering mechanism of the vehicle; and a housing configured to accommodate the airbag module and being positioned with respect to the armature, wherein the housing having positioning pins for implementing relative positioning in X and Y directions with respect to the armature at a plurality of locations, and the housing having portions defining first openings for implementing positioning in a Z direction at a plurality of locations, the armature being provided with a plurality of second openings through which the positioning pins of the housing are inserted, the second openings varying in width over their length and the armature being provided with a plurality of protrusions that are inserted through the first openings of the housing, and the position of a Z-direction lower edge of the first openings of the housing lying at the same depth in the Z direction as a narrowest width of the second openings of the armature.