| 摘要 |
An air bag apparatus including an air bag to be inflated with inflation gas flowing therein through a gas inlet, a tether structure disposed inside the air bag for limiting inflation thereof, a diffuser disposed inside the air bag for limiting and directing flow of inflation gas and having a gas in-flowing hole corresponding to the air bag gas inlet, a retainer disposed inside the air bag about the periphery of the air bag gas inlet, and a bag holder disposed outside and beneath the air bag and extending about the periphery of the air bag gas inlet. The bag holder is fastened to the retainer such that a portion of the air bag is retained between the bag holder and the retainer. The retainer is connected to the diffuser so that the retainer and the diffuser constitute a sub-assembly, thus allowing the sub-assembly to be inserted into the air bag through the gas inlet. The diffuser also includes connecting portions attaching to the retainer to prevent the diffuser from disconnecting from the retainer.
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