Air bag restraint systems.

摘要

An air bag restraint system has an air bag module (20) located centrally of a steering wheel (10) and secured with respect thereto by at least one fastening means (54), the air bag module including an inflator (23) and screw means (38) for arming the inflator (23), interlock means is associated with said screw means (38) which will prevent release of said fastening means (54) until the inflator (23) has been disarmed and will provide an indication of whether the inflator (23) is armed or not.