An occupant protection system for a vehicle seat on which an occupant sits, the occupant protection system including: an acquiring unit that acquires information of at least one of a state of the vehicle seat, a state of the occupant seated on the vehicle seat, a traveling state of the vehicle, or an environment state of a periphery of the vehicle; a plurality of airbags disposed in correspondence with each portion of the occupant and inflated by supply of gas; a gas generator that generates the gas to be supplied to the airbags; and a control unit that, based on the information acquired by the acquiring unit, selects airbag out of the plurality of airbags, necessary to suppress the occupant from moving in an acting direction of inertial force from the vehicle seat, and that controls a supply amount of the gas to each airbag such that the selected airbag inflates.

An airbag apparatus may include: an inflator configured to jet gas in case of a collision of a vehicle; a first cushion inflated by the gas jetted by the inflator, and configured to support the head of a passenger in case of a head-on collision of the vehicle; a second cushion connected to the first cushion so as to be supported by the first cushion, and configured to suppress the head of the passenger from moving in a diagonal direction in case of an oblique collision of the vehicle; a connection tube configured to connect the first and second cushions such that the gas of the inflator moves from the first cushion to the second cushion; and a control tether connected to the first cushion and the connection tube.

A closed or sealed airbag system is described in which a semi-rigid, resilient force distribution plate is positioned proximate a pair of relatively flat inflatable airbags. Once inflated, the airbags retain the gas/fluid provided thereto, while the plate serves to redistribute a point of impact on the system across the entirety of the air bags so as to significantly reduce impact forces that otherwise would have been sustained by the object/person causing the initial point of impact. The airbags and plate are specifically engineered with features to distribute and dissipate force across their entire surface area, resulting in distributed deceleration of point load forces. Additional airbags and plates can be incorporated, including outer most plates on the outer facings of the system.

A vehicular seat includes a first conduit that guides gas from a first gas generator to a first airbag, the first conduit includes a first flexible tube portion having flexibility and disposed along a first side end inside at least one of a seat surface or a seat back, and the first flexible tube portion expands to deform the seat body when the gas supplied to the first airbag from the first gas generator passes through the first flexible tube portion.

An adaptor for connecting a fill tube to an inflator includes a sleeve configured to fit over a discharge end portion of the inflator and to be connected to the inflator. The adaptor also includes an end portion comprising a nipple configured to receive and connect with the fill tube, wherein the sleeve is configured to direct inflation fluid discharged from the inflator toward the nipple, and the nipple is configured to direct the inflation fluid into the fill tube.

An airbag device includes a curtain airbag that is inflated by gas supplied to an inside of the curtain airbag, and that is configured to be deployed to a vehicle width direction outer side of an occupant seated in a vehicle seat, a main airbag that is inflated by gas supplied to an inside of the main airbag, and that is configured to be deployed from an instrument panel side to a front side of the occupant seated in the vehicle seat, and an auxiliary airbag that is inflated by gas supplied to an inside of the auxiliary airbag, and that is configured to be deployed between a vehicle width direction inner portion of the main airbag and an instrument panel.

An assembly includes a seatbelt and an inflation chamber connected to the seatbelt. The inflation chamber is inflatable from an undeployed state to a deployed state. The inflation chamber includes a first inflation chamber and a second inflation chamber. The first inflation chamber is positioned above the second inflation chamber.

A restraint system includes a seat having a seatback and a seat bottom extending from the seatback in a seat-forward direction. A first airbag is fixed to the seatback at a side of the seat, and a second airbag is fixed to the seat bottom at the side of the seat. The first and second airbags are each inflatable to an inflated position. The second airbag in the inflated position overlaps the first airbag in the inflated position in a seat-rearward direction.

The airbag device protects the occupant seated in the vehicle seat disposed in the vehicle. An airbag device includes a first airbag group and a second airbag group that are disposed in the vehicle seat in correspondence with impacts from two different directions and that respectively include a plurality of airbags; a gas generation unit that is disposed in a seat cushion, of the vehicle seat, that supports the buttocks region of the occupant and that generates gas to be supplied to the first airbag group or the second airbag group; and a switching unit that switches the supply of gas to either the first airbag group or the second airbag group.

A coupling structure includes a first coupling portion formed by one end portion of a first tube, and a second coupling portion formed by one end portion of a second tube, and is configured such that the first coupling portion is inserted in the second coupling portion, the first coupling portion and the second coupling portion are coupled, with the second tube being pivotable with respect to the first tube, and a gap is formed between an outer surface of the first coupling portion and an inner surface of the second coupling portion in a first state in which a fluid is not flowing through the flow path, and in a second state in which the fluid is flowing through the flow path, pressure of the fluid causes the first coupling portion to deform to expand toward an outer side of the flow path to reduce the gap.