Abstract: An air bag mount structure for mounting an air bag unit which is disposed behind an instrument panel for absorbing a shock against a passenger seated in a front seat of a vehicle includes a hinge pillar arranged in a front body structure of the vehicle for supporting a door unit through a hinge device. A support device mounts the air bag unit thereon. The support device is mounted on the hinge pillar at one end portion and on either the hinge pillar or a floor panel at the other end. Stability can be improved in supporting the air bag unit so that a reliability of the air bag system can be obtained in operation.

Abstract: A steering column supporting structure for use in a motor vehicle which includes a vertical portion provided at approximately a central portion of a vehicle body, and a hollow horizontal structure extending laterally, at its base portion, from the upper portion of the vertical structure toward the side wall of the motor vehicle adjacent to the driver's seat. The lower end of the vertical structure is connected to a tunnel portion or raised portion of a vehicle floor with a high rigidity, while the other end of the horizontal structure at the side wall of the motor vehicle is connected to an inner side panel constituting a closed cross sectional structure together with a hinge pillar outer panel for the improvement of rigidity at the steering column supporting portion.