US Patent 11560114 Airbag apparatus

Disclosed herein is an airbag apparatus that includes a pair of main cushions installed to respective left and right sides of a seat back and deployed forward when gas is delivered to an internal filling chamber, to restrain a passenger from sides, and a pair of auxiliary cushions coupled to respective front ends of the main cushions while in communication with the main cushions and deployed laterally at one ends thereof to restrain the passenger from a front.