Patent ID: 7686333

Claim:
An airbag cushion structure with variable inner vent hole, comprising: a diaphragm with an inner vent hole that separates a first chamber directly receiving an inflation gas from an inflator, from a second chamber receiving the inflation gas from the first chamber via the variable inner vent hole; a tether with a tether vent hole that is positioned close to the diaphragm; a tether guide with a tether guide hole that has both ends attached to the diaphragm, covering the tether; and a shield that is formed on the tether positioned between the tether guide hole and the inner vent hole, and blocks the tether guide hole from the inner vent hole, wherein the tether guide hole, the inner vent hole, and the tether vent hole communicate with each other, before the airbag cushion staffs to inflate, wherein the shield is formed at a portion of tether between the tether guide hole and the inner vent hole, with the first chamber open, and partially blocks the tether guide hole from the inner vent hole, and wherein the first chamber is a base chamber that absorbs impact applied to the passenger's upper body including the head, at the upper portion of the airbag cushion, and the second chamber is a chest chamber that protects the passenger's chest and abdomen, at the lower portion of the airbag cushion.