Abstract: An occupant protection device for protecting an occupant seated in a seat includes the following: a seatbelt having at least a tongue, a buckle, and a lap belt portion, an inflator, and an airbag provided in the lap belt portion, wherein, in a state where a main body portion of the airbag is inflated, an end portion on a tongue side of a conduit portion of the airbag in a left-right direction of the seat extends as far as a position equivalent to that of an end portion on the tongue side of the main body portion, or nearer than the end portion on the tongue side of the main body portion to the tongue.

Abstract: An occupant protection device is for protecting an occupant seated on a seat, and includes an airbag, a holding body in which the folded airbag is housed and held, and an inflator that supplies an inflating gas to the airbag. The airbag is configured to inflate in such a way as to cover a front of the occupant, and includes an occupant side wall portion which can restrain an upper body of the occupant by being disposed on the occupant side when inflation is completed. The occupant side wall portion has a chest portion restraining region that can restrain a chest portion of the occupant by being disposed in an intermediate region in up-down direction sides when inflation is completed. The chest portion restraining region is configured to be narrow in left-right direction sides in comparison with an upper side region and a lower side region disposed one each on upper and lower sides of the chest portion restraining region.

Abstract: An occupant protection device includes the following: a seatbelt having a lap belt portion that restrains a waist portion of an occupant; an inflator that discharges an inflating gas; an airbag that is provided in the lap belt portion, the airbag including a bag main body portion, which receives the occupant by inflating owing to the inflating gas being supplied, and a conduit portion, which is connected to the inflator, guides the inflating gas discharged from the inflator to the bag main body portion, and causes the inflating gas to flow into the bag main body portion; and a tether that links the conduit portion and a side wall portion, of a left side wall portion and a right side wall portion of the bag main body portion when inflation is completed, on a side separated from the inflator in a left-right direction.

Abstract: An occupant protection device includes the following: a seatbelt having a lap belt portion; a pretensioner mechanism that takes up the seatbelt; an inflator that discharges an inflating gas; and an airbag that is joined to the lap belt portion, the airbag including a bag main body portion, which is housed folded, inflates owing to the inflating gas being supplied, and receives an occupant, and a conduit portion, which guides the inflating gas discharged from the inflator to the bag main body portion, and causes the inflating gas to flow into the bag main body portion, wherein a length dimension along the lap belt portion of a joining region in which the airbag and the lap belt portion are joined is shorter than a length dimension along the lap belt portion of the bag main body portion in a folded state.

Abstract: An airbag for storage at an inner side of the backrest in a vehicle width direction includes a lower folded portion made by folding a lower area of the airbag that is to be situated at a lower side of vehicle upon inflation and deployment, an upper folded portion made by folding an upper area of the airbag that is to be situated at an upper side of vehicle upon the inflation and deployment, and a middle folded portion made by folding a middle area of the airbag that is to be situated between the lower area and the upper area upon the inflation and deployment, wherein the middle folded portion is a roll-folded portion such that a face of the airbag facing away from the inner side upon the inflation and deployment faces inward in the roll-folded portion, the roll-folded portion having the upper folded portion wrapped therein.