A side impact cushion device of a motor vehicle contains at least one impact cushion which can be inflated by a gas generator. The impact cushion in an installation state has an upper portion, a central portion and a lower portion. In this case, the upper portion is arranged substantially horizontally in a deployed state, the central portion is formed in the form of a shell surface of a rotationally symmetrical, developable body, the lower portion can be supported on an upper side of an armrest and a rotational axis of the rotationally symmetrical body is oriented vertically in the deployed state.

An airbag includes a manifold having an outer panel and an inflation chamber defined at least in party by the outer panel. The airbag further includes a first compartment and a second compartment spaced from the first compartment connected to the outer panel and positioned external to the inflation chamber. A first one-way valve is in fluid communication with the manifold and the first compartment, and a second one-way valve is in fluid communication with the manifold and the second compartment.

A steering wheel airbag, arranged to cover a steering wheel when inflation is completed, includes: a front-collision receiving surface which is arranged on a side of a driver when inflation is completed, so as to receive the driver moving forward during a head-on collision of a vehicle, the front-collision receiving surface being arranged substantially along a vertical direction to be tilted with respect to a ring surface of the steering wheel when inflation is completed; and arm restraining parts which are arranged near arms of the driver steering a ring part of the steering wheel on both right and left sides of the front-collision receiving surface when inflation is completed, the arm restraining parts coming into contact with the arms during an oblique collision or an offset collision of the vehicle, so as to prevent a movement of the driver to an obliquely front side.

An occupant protection device for a vehicle includes a collision predictor, a main airbag, an occupant state detecting device, a sub-airbag, and a deployment controller. The collision predictor is configured to predict a collision of the vehicle. The main airbag is configured to deploy toward an occupant from a front of the vehicle when the collision predictor predicts a collision of the vehicle. The occupant state detecting device is configured to detect a position of an arm of the occupant. The sub-airbag is configured to deploy toward the arm of the occupant and to swiftly deflate after deployment. The deployment controller is configured to, when the collision predictor predicts a collision of the vehicle, cause the sub-airbag to deploy toward the arm of the occupant detected by the occupant state detecting device and cause the main airbag to deploy after deflation of the sub-airbag.

An airbag that prevents heavy interference with the head of an occupant during expansion and deployment even when the occupant is not seated in a vehicle seat in a regular position.

An airbag device 11, including an airbag 12 and an inflator 6 for supplying gas to the airbag 12. The airbag 12 is positioned to the sides of the center in the left-right direction of the vehicle seat 2 and has a pair of chambers 1a physically coupled by a coupling section 12a that deploy forward of the occupant 3 when expansion and deployment are complete. The pair of chambers 1a are respectively independent during expansion and deployment and expand and deploy frontward from both the left and right sides of the vehicle seat 2, having side protecting chambers 1 ab that cover at least the side sections 3b of the occupant 3. The side protecting chambers 1ab are coupled by coupling sections 12a positioned to the sides of the center in the left-right direction of the vehicle seat 2, and the coupling section 12a is thinner than the side protecting chambers 1ab at least during initial expansion and deployment.

An occupant protection device for a vehicle includes a collision predictor, a main airbag, and a deployment controller. The collision predictor is configured to predict a collision of the vehicle. The main airbag is configured to deploy toward an occupant from a front of the vehicle when a collision of the vehicle is predicted by the collision predictor. The main airbag includes a first deployment part, an arm-push-away deployment part, and a second deployment part. The controller is configured to cause the main airbag to deploy toward the occupant when a collision of the vehicle is predicted by the collision predictor. The controller is configured to, when a collision of the vehicle is predicted by the collision predictor, cause the first deployment part to deploy, subsequently cause the arm-push-away deployment part to deploy to push an arm of the occupant away, and thereafter, cause the second deployment part to deploy.

A side airbag apparatus may include: an inflator configured to discharge gas; and a cushion deployed to one side of a passenger by the gas discharged from the inflator, and having a main chamber and a push chamber, which are formed therein, wherein the push chamber is inflated to protrude from the main chamber toward an indoor side, and pushes up an arm the passenger, wherein the cushion comprises a first panel disposed at a side surface of a vehicle body; a second panel stacked on an indoor side of the first panel, and configured to form the main chamber and the push chamber with the first panel; and a tether member inserted between the first and second panels, having one end coupled to the first panel and the other end coupled to the second panel.

A side impact cushion device of a motor vehicle contains at least one impact cushion which can be inflated by a gas generator. The impact cushion in an installation state has an upper portion, a central portion and a lower portion. In this case, the upper portion is arranged substantially horizontally in a deployed state, the central portion is formed in the form of a shell surface of a rotationally symmetrical, developable body, the lower portion can be supported on an upper side of an armrest and a rotational axis of the rotationally symmetrical body is oriented vertically in the deployed state.

A steering wheel airbag, arranged to cover a steering wheel when inflation is completed, includes: a front-collision receiving surface which is arranged on a side of a driver when inflation is completed, so as to receive the driver moving forward during a head-on collision of a vehicle, the front-collision receiving surface being arranged substantially along a vertical direction to be tilted with respect to a ring surface of the steering wheel when inflation is completed; and arm restraining parts which are arranged near arms of the driver steering a ring part of the steering wheel on both right and left sides of the front-collision receiving surface when inflation is completed, the arm restraining parts coming into contact with the arms during an oblique collision or an offset collision of the vehicle, so as to prevent a movement of the driver to an obliquely front side.

An occupant protection device for a vehicle includes a collision predictor, a main airbag, an occupant state detecting device, a sub-airbag, and a deployment controller. The collision predictor is configured to predict a collision of the vehicle. The main airbag is configured to deploy toward an occupant from a front of the vehicle when the collision predictor predicts a collision of the vehicle. The occupant state detecting device is configured to detect a position of an arm of the occupant. The sub-airbag is configured to deploy toward the arm of the occupant and to swiftly deflate after deployment. The deployment controller is configured to, when the collision predictor predicts a collision of the vehicle, cause the sub-airbag to deploy toward the arm of the occupant detected by the occupant state detecting device and cause the main airbag to deploy after deflation of the sub-airbag.