Patent attributes
A vehicle passenger seat airbag device includes: an airbag main body that is stored on a lower side of an instrument panel and that is partitioned by an upper partition member to a lower chamber that restrains lower limbs of an occupant and an upper chamber that restrains an upper body of the occupant; and a flow straightening cylinder that is provided so as to be passed through the upper partition member inside the airbag main body and that distributes gas ejected from an inflator to the lower chamber and the upper chamber. The flow straightening cylinder is provided such that a sectional shape of at least a region passing through the upper partition member is provided in a flat shape with its longitudinal direction in a vehicle width direction when the flow straightening cylinder expands and deploys due to ejection of the gas.