Air bag device

摘要

A curtain shaped air bag having a cylindrical inflatable portion which is continuously formed from the vicinity of an upper edge to the vicinity of a lower edge. In the curtain shape air bag, both end portions of the lower edge are attached to the vehicle body so that slack S elongating across the cylindrical inflatable portion is produced in a naturally attached condition of the curtain shape air bag 1. At an operation of an inflator, the cylindrical inflatable portion vertically extends so as to apply tension to the lower edge, thereby causing a protecting inflatable portion to be inflated in a condition where the curtain shape air bag is fixed in a desired position.