| 摘要 |
To provide an air bag made of resin which can be easily produced and of which volume in the folded state is small, a first resin sheet 1 and a heat resisting sheet 3 are disposed to be superposed on each other in a mold 7. The diameter of the heat resisting sheet 3 is smaller than that of the sheet 1 so that the periphery of the sheet 1 are exposed from the heat resisting sheet 3. Resin is injected into a cavity 13 through a sprue bushing end 12 to mold a second resin sheet 2 and to bond the sheet 2 to the sheet 1.
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