AIRBAG DEVICE FOR VEHICLE

A vehicle airbag device according to an embodiment of the present invention may include a cushion which includes a chamber inflated by gas and in which vent holes are formed in both side surfaces of the cushion, a vent tube which is disposed in the chamber, into which the gas is introduced, and which is connected to the pair of vent holes to connect the pair of vent holes to each other and guides the introduced gas toward the vent holes, and a tether which is disposed in the chamber and tightens and closes the vent tube as the cushion inflates.