Inflatable air bag system

摘要

In an inflatable air bag system for restraining a vehicle occupant in case of a high acceleration situation such as a vehicle crash comprising a casing accommodating a folded air bag therein, the casing is adapted to be installed into an opening of an instrument panel facing the vehicle occupant. The casing is relatively securely attached to the vehicle body at its lower end, but is simply secured to the instrument panel at its upper end by means of a slot and projection engagement structure which is adapted to be engaged as a result of fully inserting the casing in the opening. Thus, the work involved in installing the air bag system is simplified, but the casing is secured in a sufficiently stable fashion because the slot and projection engagement structure is highly effective in restraining the rotating movement of the casing around its fixedly secured lower end. In use, this structure allows the casing to be securely supported against the reaction caused by the deployment of the air bag.