A rear seat side airbag device includes: a case provided inside a vehicle cabin side portion in correspondence with a rear seat, the case being open substantially toward a vehicle front side; an inflator accommodated inside the case, the inflator configured to generate gas at a time of vehicle collision; and a side airbag accommodated inside the case and is configured to receive a supply of gas from the inflator and inflates and expands, the side air bag including a distal end portion being fixed to a region of the case or a vehicle body, which region is at a vehicle width direction inner side with respect to the inflator.

A center curtain airbag for a vehicle may include an upper cushion device configured to be deployed from a roof device of the vehicle into a space between a front seat and a rear seat when an inflator operates; a lower cushion device connecting and communicating with the upper cushion device and configured to extend downwardly from the upper cushion device; and a guide tether including a first end portion coupled to the upper cushion device or the roof device, and a second end portion coupled to a lower end portion of the lower cushion device, the guide tether being configured to provide, when the lower cushion device along with the upper cushion device is deployed, a pulling force to the lower cushion device so that the lower cushion device may be deformed to protrude toward the front and rear seats.

An airbag apparatus for a vehicle may include: a surrounding airbag installed in a seat on which a passenger is seated, and deployed toward the passenger so as to cover an upper part and side parts of the passenger; a front airbag connected to the surrounding airbag, and laterally deployed to cover a front part of the passenger; and a behavior constraint tether extended from the front airbag to an upper portion of the surrounding airbag so as to constrain the surrounding airbag and the front airbag, and configured to constrain a forward behavior of the passenger through a tensile force.

An airbag includes an internal pressure adjusting mechanism, including: a tether arranged in a bag part; a long side part; and a short side part; and adjusting an exhaust of the inflation gas: to be in an exhaust mode in which the exhaust is facilitated when the tether is loosened; and to be in an exhaust suppression mode in which the exhaust is suppressed when the tether is stretched. In a state where the tether is loosened during the exhaust mode, facing edge parts of the long side part and the short side part are separable. In a state where the tether is stretched during the exhaust suppression mode, the facing edge part of the long side part and a root side part are inflated around the short side part and a leading edge side part contacts a back surface side of the short side part.

An occupant protection apparatus includes a seat arrangement determination unit that determines the arrangement of seats and a collision determination unit that determines information about collision occurring to a vehicle. A deployment control unit deploys an airbag when the direction of the seat and the direction of the seat determined by the scat arrangement determination unit (94) are opposed to each other, and the direction of the collision determined by the collision determination unit is on the front side of the seat, or on the front side of the seat.

An airbag arrangement (3) for a vehicle (1). The airbag arrangement comprises an inflatable airbag (5) and an external extension control member (7) being operatively associated with said airbag. The airbag is adapted to be inflated in a longitudinal direction (x) of the vehicle to a position between an interior portion (13) of the vehicle in front of a seated vehicle occupant (17) and an upper body region (19) of the seated vehicle occupant. The external extension control member has a selectable operative length (l.sub.o). The external extension control member controls deployment of the airbag by means of the selectable operative length. The present disclosure also relates to a vehicle comprising the airbag arrangement and a method for deploying an airbag of the airbag arrangement.

The present disclosure relates to an airbag assembly and a vehicle seat comprising the airbag assembly. The airbag assembly is adapted to be mounted at a side of a vehicle front seat away from its neighboring vehicle door, and includes a folded airbag adapted to be inflated with gas and to be connected to a backrest frame of the vehicle front seat; and a tether for controlling deployment of the airbag. A first end of the tether is connected to the airbag and a second end of the tether is adapted to be connected to the backrest frame. The airbag is configured to be restrained by the tether and the filling so as to be disposed along a side contour of the backrest frame in a bent state.

An occupant protection device includes: an airbag which is deployed and inflated rearward from an accommodation part so that the airbag receives the occupant when inflation gas flows in, the airbag having an inflation completion shape of a loop shape including an upper and lower portions which branch up and down from an inflow opening side and a rear portion which is a mutual connecting part between rear ends of the upper portion and the lower portion as a confluence part on a tip end side. The airbag includes: a bag main body including the upper portion, the lower portion, and the rear portion; and a connecting member having flexibility which is disposed between the upper portion and the lower portion and connects the upper portion and the lower portion so as to regulate a separation distance between the upper portion and the lower portion when inflation is completed.

In an embodiment, a roof airbag apparatus may include: a roof airbag cushion connected to an inflator, the roof airbag cushion configured to be disposed in a first folded state in a panorama roof, and to be inflated in a second expanded state and deployed as gas is supplied from the inflator; and a constraint connected to the roof airbag cushion configured to pull downward a distal end portion of the roof airbag cushion as it is being inflated to prevent reverse deployment of the roof airbag cushion.

A variable control apparatus for an airbag of a vehicle includes: a plurality of tethers each of which having one side coupled to a front sheath among a plurality of sheaths of an airbag cushion, each of the plurality of tethers formed to have a length shorter than a distance between the front sheath and a rear sheath when the airbag cushion is fully deployed; a release mechanism provided at a rear sheath side of the airbag cushion, connected to the respective other sides of the plurality of tethers, and selectively releasing a tether among the plurality of tethers upon an operation of the release mechanism; and a controller configured to variably control a deployment shape of the airbag cushion by operating the release mechanism based on a collision direction of the vehicle, a seat state of a seat of the vehicle, or a sitting posture of a passenger in the vehicle.