Airbag apparatus

An airbag apparatus comprising:

• an airbag module disposed at a lower end portion of a crash pad;
• an airbag cushion configured to deploy from the airbag module to deploy in a space between a first position and a second position disposed higher than the first position in a vehicle wherein a tether is connected to the airbag cushion in a deployment direction of the airbag cushion toward at least one of the first position, a third position, and the second position in the vehicle to form an integrated deployment shape, the third position disposed between the first position and the second positon in a height direction of the vehicle;
• and
• a release device connected to the tether adjacent to the airbag module, and operated to allow the tether to be released or maintained,
• wherein the airbag cushion includes a hollow portion at a middle portion of the airbag cushion in left and right directions of the vehicle, an upper body protection portion and a lower body protection portion,
• wherein the upper body protection portion of the airbag cushion is deployed in an annular shape enclosing the hollow portion, and the lower body protection portion of the airbag cushion is deployed downwardly from a front end portion of the upper body protection portion, and
• wherein the tether includes:
• a first tether connected between the release device and the hollow portion toward the second position;
• a second tether connected in the hollow portion toward the third position;
• and
• a third tether connected in the lower body protection portion toward the first position.