| 摘要 |
PROBLEM TO BE SOLVED: To provide an airbag capable of appropriately protecting occupants by forming an outer-peripheral wall into a curved surface shape over the substantially whole range.SOLUTION: The airbag 20 has temporarily connected portions 41, 42 a connected state of which is released when an inner pressure of the airbag 20 rises by mutually connecting the outer-peripheral walls 21, at parts of the outer-peripheral walls. A tack 27 formed by picking up the parts of the outer-peripheral walls 21 and protruding them toward the inner periphery side of the airbag 20 includes two opposing wall portions 28; an inversion portion 30 forming a bottom portion of the tack 27; and an opening-side end 29 continuous to an outer surface of the airbag 20 in each of the opposing wall portions 28. The temporarily connected portions 41, 42 are formed by mutually connecting the opposing wall portions 28, and ends 41a, 42a are disposed in the vicinity of the opening-side end 29. Moreover, the ends 41b, 42b are disposed in the vicinity of the inversion portion 30 and is formed in a linear manner extending toward the inversion portion 30 side. |
