Patent ID: 7748731

Claim:
An airbag device comprising: an inflator for generating gas; an airbag being expandable by gas generated in the inflator; an airbag cover for folding the airbag to house the folded airbag therein and openable at the time of expansion of the airbag, wherein said airbag cover includes a plurality of cover pieces; a base plate which is discoid shaped and having a hole formed at a central portion thereof in which the inflator is fitted; a connection member having an elongated shape comprising a central part, leg parts extending from the central part, and attachment feet formed at distal ends of the leg parts, respectively; and a cushion plate for clamping and holding the airbag between the cushion plate and the base plate, wherein the cushion plate has concave parts on its front face for housing each of the attachment feet of the connection member, and a central portion of the airbag cover being opened by tear lines at the time of expansion of the airbag is connected to the central part of the connection member, while the attachment feet of the connection member are clamped and held between the base plate and the concave parts of the cushion plate together with the airbag, and the connection member holds the central portion of the airbag cover at the time of spread of the airbag when the airbag is expanded forward by gas from the inflator while getting across the central portion of the airbag cover, wherein the tear lines delineate the central portion from the cover pieces, so that when the tear lines tear, the cover pieces are completely detached from the central portion so as to move outwardly away from the central portion.