| 摘要 |
PURPOSE: An air hole structure of an air bag is provided to increase safety and reduce the impact applied to the body by controlling an amount of the gas, which is discharged from a second air bag to a first air bag, according to the internal pressure. CONSTITUTION: An air hole structure of an air bag comprises first and second airbags(120,140) and a plurality of air holes(200). The first airbag has a plurality of fine holes(122). A corrugated portion(126) is formed on the circumference of the first airbag. The second airbag is located inside the first airbag. The upper side of the second airbag adheres closely to the inner surface of the first airbag. The outer circumference of the second airbag maintains from the inner circumference of the first airbag by the fixed interval. A plurality of air holes is formed in the second airbag. The air hole controls the air discharged amount to a first air bag from a second air bag according to the impact intensity of the body of a user and the airbag.
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