| 摘要 |
An airbag includes: an upper base cloth (3) having a rear face portion (3c), both side portions (3b,4b) supporting the rear face portion (3c), and an upper face portion (3a); and a lower base cloth (4) having a rear face portion (4c), both side portions (4b) supporting the rear face portion (4c), and a bottom face portion (4a). In the construction, joining portion of the upper base cloth and joining portion of lower base cloth are joined to each other to form a bag-shaped airbag, so that two joining lines (17,18) between the rear face portion of the lower base cloth (4c) and each of the both side portions (4b) of the lower base cloth are smoothly curved in such a manner that middle portions of the two joining lines project towards the occupant, thereby forming a bulging portion at the rear face portion of the lower base cloth (4c). <IMAGE> |
