AIRBAG DEVICE

A cushion of an airbag device includes: an inner inflating section which convexly inflates toward the rear of a vehicle and which restrains the head of an occupant from the front of the vehicle; protrusions and which are provided to the sides of the inner inflating section in a vehicle width direction and which are capable of inflating so as to protrude further toward the rear of the vehicle than the inner inflating section ; and outer inflating sections and which are provided between the inner inflating section and the protrusions and and which temporarily convexly inflate toward the rear of the vehicle within a smaller range than the expansion range of the inner inflating section and the protrusions and . The outer inflating sections and are squashed by the inner inflating section and the protrusions and and, as a result, the protrusions and are in a posture of being pulled toward a side of the inner inflating section