| 摘要 |
The present invention provides an airbag cushion structure with variable inner vent holes, which has at least two chambers into which an inflation gas is delivered from an inflator. According to the airbag cushion structure, safe inflation performance of an airbag is maximized in an early inflation by increasing the size of inner vent holes, passenger collision energy absorption performance of the airbag is secured in the latter inflation by decreasing the size of the inner vent holes. Further, it is possible to improve both the safe inflation performance and passenger collision energy absorption performance of the airbag when a passenger-contact portion of the airbag cushion that contacts with the passenger's head and chest is close to a region of the airbag cushion that inflates, such as a crash pad with an airbag cushion, by increasing the size of the inner vent holes and decreasing the size of the inner vent holes around a region where the passenger-contact portion contacts the passenger.
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