Abstract: A seat provided in a vehicle interior of the vehicle; a side airbag having a plurality of chambers each folded, the side airbag being stored in a side portion of a seat back; an inflator arranged together with the side airbag, the inflator suppling gas to the plurality of chambers when a side-impact crash of the vehicle is detected; a channel section for distributing the gas generated from the inflator to the plurality of chambers; a valve unit provided in the channel section, the valve unit reducing the distributed amount of the gas flowing from the channel section to a particular chamber among the plurality of chambers; and an actuator unit that allows the valve unit to operate to reduce the distributed amount of the gas flowing from the channel section to the particular chamber according to the deployment behavior of any chamber among the plurality of chambers, are included.

Abstract: A side airbag device includes an airbag which includes a first base fabric and a second base fabric constituting an inflatable envelope, and in the event of a lateral collision of a vehicle, the airbag is deployed between an occupant and a door. The airbag further includes a partition fabric between the first base fabric and the second base fabric. The partition fabric partitions the inflatable envelope into a first inflatable compartment corresponding to a shoulder of the occupant, and a second inflatable compartment. The partition fabric is provided with a valve mechanism which opens to connect the first inflatable compartment and the second inflatable compartment when the first inflatable compartment is fully inflated.

Abstract: A seat provided in a vehicle interior of the vehicle; a side airbag having a plurality of chambers each folded, the side airbag being stored in a side portion of a seat back; an inflator arranged together with the side airbag, the inflator being capable of suppling gas to the plurality of chambers when a side-impact crash of the vehicle is detected; a channel section for distributing the gas generated from the inflator to the plurality of chambers; a valve unit provided in the channel section, the valve unit being capable of reducing the distributed amount of the gas flowing from the channel section to a particular chamber among the plurality of chambers; and an actuator unit that allows the valve unit to operate to reduce the distributed amount of the gas flowing from the channel section to the particular chamber according to the deployment behavior of any chamber among the plurality of chambers, are included.

Abstract: A side airbag device includes an airbag which includes a first base fabric and a second base fabric constituting an inflatable envelope, and in the event of a lateral collision of a vehicle, the airbag is deployed between an occupant and a door. The airbag further includes a partition fabric between the first base fabric and the second base fabric. The partition fabric partitions the inflatable envelope into a first inflatable compartment corresponding to a shoulder of the occupant, and a second inflatable compartment. The partition fabric is provided with a valve mechanism which opens to connect the first inflatable compartment and the second inflatable compartment when the first inflatable compartment is fully inflated.