AIRBAG APPARATUS

摘要

In an airbag apparatus, a case includes a peripheral wall portion and a protruding opening. An airbag cover includes a door portion covering the protruding opening, and four side wall portions protruding from the door portion. The peripheral wall portion includes two locking wall portions and two connection wall portions connecting the two locking wall portions to each other. A first pair of the four side wall portions are arranged on outer peripheral sides of the locking wall portions. The first pair of the four side wall portions have a locking hole locked by a locking claw on the locking wall portions. A second pair of the four side wall portions cover an inner peripheral side of the peripheral wall portion located at vicinities of corner portions of a peripheral edge of the protruding opening.

主权项

1. An airbag apparatus comprising:
a case; an airbag folded and received in the case; and an airbag cover that covers the folded airbag; wherein the case has a box shape including a bottom wall portion, a tubular peripheral wall portion extending from a peripheral edge of the bottom wall portion, and a protruding opening through which the airbag inflating by an inflation gas protrudes, wherein the airbag cover includes:
a door portion arranged to cover the protruding opening and adapted to be pushed and opened by the inflating airbag upon deployment and inflation of the airbag; andfour side wall portions protruding from peripheral edges of the door portion and arranged near to the peripheral wall portion of the case, wherein the peripheral wall portion of the case includes:
two locking wall portions which is opposing to each other and to which the side wall portions of the airbag cover is attached; andtwo connection wall portions connecting the two locking wall portions to each other, wherein each of the locking wall portions has a locking claw in a vicinity of an edge of the locking wall near to the protruding opening, the locking claw protruding outward and bent so that a distal end of the locking claw directs toward the bottom wall portion; wherein, as attaching wall portions, a first pair of the four side wall portions opposing to each other to be located near to the locking wall portions are arranged on outer peripheral sides of the locking wall portions, the first pair of the four side wall portions have a locking hole, a peripheral edge of the locking hole is locked by the locking claw, and the first pair of the four side walls are attached to the locking wall portions by locking the locking claw on the peripheral edge of the locking hole, and wherein, as cover wall portions, a second pair of the four side wall portions opposing to each other are arranged near to inner peripheral sides of the connection wall portions to cover an inner peripheral side of the peripheral wall portion located at vicinities of corner portions of a peripheral edge of the protruding opening.