Patent attributes
An airbag apparatus includes an airbag, a gas generator, a retainer to which the airbag and the gas generator are attached, and a module cover for covering the folded airbag. The airbag has a front panel, a rear panel, and an inner panel for partitioning the airbag interior into a first chamber and a second chamber. The inner panel has communication ports for communication of inflation gas between the first chamber and the second chamber. In an inflated state, at least a portion of the communication ports is disposed in a section of the inner panel below an upper end of a leg portion of the module cover. Gas discharged from gas discharge ports is supplied to the second chamber via the communication ports. Inflation of the second chamber, therefore, is accomplished in an early stage of airbag deployment.
