Side airbag device for vehicle

A side airbag device for a vehicle, comprising:

• a side airbag having a high pressure chamber that becomes a high pressure side at a time of inflation and deployment, and a low pressure chamber that becomes a lower pressure than the high pressure chamber, the high pressure chamber and the low pressure chamber each inflating and deploying at a time of a side collision;
• a partitioning wall that is formed by, of the high pressure chamber base cloth or the low pressure chamber base cloth, an end portion of an outer base cloth, that is positioned at a seat transverse direction outer side of a vehicle seat, and an end portion of an inner base cloth, that is positioned at a seat transverse direction inner side, being sewn together, the partitioning wall dividing the high pressure chamber and the low pressure chamber;
• an inflator that, at a time of a side collision, jets-out gas for inflation from a gas jetting-out portion, and supplies gas to an interior of the side airbag;
• and
• a check valve that is provided integrally with the partitioning wall, and that is formed by at least one of the outer base cloth or the inner base cloth extending toward a high pressure chamber side, at a seat rear side within the side airbag, and that permits flowing of gas, jetted-out from the gas jetting-out portion of the inflator, from the low pressure chamber to the high pressure chamber, and that regulates flowing of gas in an opposite direction.

A side airbag device for a vehicle, comprising:

• a side airbag having a high pressure chamber that becomes a high pressure side at a time of inflation and deployment, and a low pressure chamber that becomes a lower pressure than the high pressure chamber, the high pressure chamber and the low pressure chamber each inflating and deploying at a time of a side collision;
• a partitioning wall that is formed by, of the high pressure chamber base cloth, an end portion at a low pressure chamber side of a high pressure chamber outer base cloth, which is positioned at a seat transverse direction outer side of a vehicle seat, being sewn to, of the high pressure chamber base cloth, a high pressure chamber inner base cloth that is positioned at a seat transverse direction inner side, the partitioning wall dividing the high pressure chamber and the low pressure chamber;
• an inflator that, at a time of a side collision, jets-out gas for inflation from a gas jetting-out portion, and supplies gas to an interior of the side airbag;
• and
• a check valve that is provided integrally with the partitioning wall, and that is formed by an extending portion toward a low pressure chamber side being provided at an end portion at the low pressure chamber side of the high pressure chamber outer base cloth, at a seat rear side within the side airbag, the extending portion being folded-over toward a high pressure chamber side, and an end edge at a seat front side and an end edge at a seat rear side of the extending portion respectively being sewn to, of the high pressure chamber base cloth, the high pressure chamber inner base cloth that is positioned at the seat transverse direction inner side, the check valve permitting flowing of gas, jetted-out from the gas jetting-out portion of the inflator, from the low pressure chamber to the high pressure chamber, and regulating flowing of gas in an opposite direction.

A side airbag device for a vehicle, comprising:

• a side airbag having a high pressure chamber that becomes a high pressure side at a time of inflation and deployment, and a low pressure chamber that becomes a lower pressure than the high pressure chamber, the high pressure chamber and the low pressure chamber each inflating and deploying at a time of a side collision;
• a partitioning wall that is formed by, of the low pressure chamber base cloth, an end portion at a high pressure chamber side of a low pressure chamber outer base cloth, which is positioned at a seat transverse direction outer side of a vehicle seat, being sewn to, of the low pressure chamber base cloth, a low pressure chamber inner base cloth that is positioned at a seat transverse direction inner side, the partitioning wall dividing the high pressure chamber and the low pressure chamber;
• an inflator that, at a time of a side collision, jets-out gas for inflation from a gas jetting-out portion, and supplies gas to an interior of the side airbag;
• and
• a check valve that is provided integrally with the partitioning wall, and that is formed by an extending portion toward a high pressure chamber side being provided at an end portion at the high pressure chamber side of the low pressure chamber outer base cloth, at a seat rear side within the side airbag, an end edge at a seat front side and an end edge at a seat rear side of the extending portion respectively being sewn to, of the high pressure chamber base cloth, a high pressure chamber inner base cloth that is positioned at the seat transverse direction inner side, the check valve permitting flowing of gas, jetted-out from the gas jetting-out portion of the inflator, from the low pressure chamber to the high pressure chamber, and regulating flowing of gas in an opposite direction.