US Patent 10974686 Side airbag device

The disclosure relates to a side airbag device including: an inflator that discharges gas; a cushion that covers the inflator and is expanded toward a side of a passenger by the gas discharged from the inflator; and a tether that is disposed through and around the cushion and induces an upper portion of the cushion to bend when the cushion expands, thereby being able to prevent a passenger-to-passenger collision and protect even one passenger.