VEHICLE OCCUPANT RESTRAINT DEVICE

A vehicle occupant restraint device includes: a seatbelt configured to restrain an occupant on a vehicle seat, the occupant sitting in the vehicle seat; and an upper-body restraint air-bag configured to perform expanding spread between a shoulder belt of the seatbelt and a chest region of the occupant and to restrain at least the chest region of the occupant, by receiving supply of gas from an inflator, at a time of frontal collision of a vehicle.