Kopfschutz-Airbagvorrichtung

摘要

A head protecting airbag device comprising an airbag (14) folded and housed above the upper edge of a window (SW1/SW2) inside of a vehicle and expanded while being extended to cover the inner side of the window when it admits an inflating gas. The airbag includes a body portion (15) and an extension portion (26F/26B). The body portion (15) covers the inner side of a side window positioned on the side face of the vehicle. The extension portion (26F/26B) is arranged on at least the front end (15C) of the body portion (15), and extends on the inner side generally perpendicular to the side window. Moreover, the extension portion (26F/26B) is formed into a sheet shape having flexibility such that it can be arranged in front of a passenger upon completion of the expansion of the airbag. Moreover, the body portion (15) is fixed at its upper edge (15a) upon completion of the expansion on the body side while allowing the lower edge (15b) upon completion of the expansion to move generally perpendicular to the side window. The extension portion (26F/26B) is fixed at its leading end (26a) removed from the body portion to the vehicle body and is housed in a roof portion over the portion of the cabin in front of the passenger such that it can protrude downward along with the body portion (15) housed above the upper edge of the side window. In this head protecting airbag device, the body portion (15) of the airbag can be smoothly arranged between the passenger and the side window by moving its lower edge. Moreover, the extension portion can protect the passenger moving forward.