A curtain airbag is proposed to improve the deployability of an airbag cushion while simplifying the structure of the curtain airbag by forming a sub-chamber. The curtain airbag includes a main chamber of an airbag cushion secured to an upper end inside a vehicle body to be deployed to a lower end thereof, a first sub-chamber of the airbag cushion deployed above a pillar trim while pushing the vehicle body to move the main chamber towards a center of a vehicle, and a second sub-chamber of the airbag cushion deployed between an end of the pillar trim and the main chamber, thus pushing the main chamber to prevent the main chamber from being caught by the end of the pillar trim.

An airbag apparatus for a vehicle includes an airbag disposed on behind an instrument panel and configured to be expanded and deployed rearward of the vehicle so as to be positioned on a front side of an occupant. The airbag includes a recess in a rear surface of the airbag that are to be opened rearward of the vehicle and positioned on the front side of the occupant's head, an upper expansion to be expanded rearward and on an upper side of the recess and extend in the vehicle lateral direction, left and right side expansions in pairs to be expanded rearward and on opposite sides of the recess in the airbag's width direction, and a lower expansion that is to be expanded rearward and on a lower side of the recess, extend in the vehicle lateral direction, and be positioned on the front side of the occupant's chest.

An airbag apparatus for a vehicle includes an inflator, an airbag configured to be expanded and deployed from an instrument panel when supplied with gas so as to be positioned on a front side of an occupant, and a flow guide cloth disposed inside the airbag. The flow guide cloth is configured to be expanded and deployed when the gas flows into the flow guide cloth and discharge the gas into the airbag. A rear end portion is spaced from a rear wall of the airbag. A rear outlet is disposed in the rear end portion and configured to discharge the gas into a rear end portion of the airbag. A front outlet is disposed in a front portion and configured to discharge the gas into a front portion of the airbag. An opening area of the rear outlet is larger than an opening area of the front outlet.

A curtain airbag apparatus of a vehicle includes: a main chamber mounted on the vehicle from a side of an occupant, and configured to be deployed by being supplied gas therein, and pressurized in colliding with the occupant in the deployed state; a vent hole spaced from an inflow path through which the gas flows into the main chamber, and opened for the gas inside the main chamber to flow; and a venting chamber connected to the main chamber so that the gas inside the main chamber flows into through the vent hole, wherein a gas flow through the vent hole from the main chamber to the venting chamber is restricted within the vent hole or the venting chamber.

A driver airbag apparatus for a vehicle is proposed. The driver airbag apparatus includes: the driver airbag apparatus being located at a rear of a steering wheel having an obstacle and configured to be deployed forward of the steering wheel while avoiding the obstacle, an airbag cushion configured to be deployed forward of the steering wheel via a gap between the obstacle and the steering wheel when gas is supplied thereinto; a gas injector located below the airbag cushion and configured to inject the gas into the airbag cushion via a gas outlet; and a diffuser configured to be deployed in the airbag cushion, and covering a part or all of the gas outlet from above the gas outlet and being open at a front portion thereof so as to guide the gas injected via the gas outlet to flow in front of an occupant.

A driver airbag apparatus for a vehicle is proposed. The driver airbag apparatus includes: the driver airbag apparatus being located at a rear of a steering wheel having an obstacle and configured to be deployed forward of the steering wheel while avoiding the obstacle, an airbag cushion configured to be deployed forward of the steering wheel via a gap between the obstacle and the steering wheel when gas is supplied thereinto; a gas injector located below the airbag cushion and configured to inject the gas into the airbag cushion via a gas outlet; and a diffuser configured to be deployed in the airbag cushion, and covering a part or all of the gas outlet from above the gas outlet and being open at a front portion thereof so as to guide the gas injected via the gas outlet to flow in front of an occupant.

A driver's side airbag device 100 is provided with a diffuser 124 that is contained in an airbag cushion 104 and straightens gas flow from an inflator 112. The diffuser 124 has a connecting part 136 that is connected to the inflator 112 and one or a plurality of supply ports that supply gas received from the inflator 112 into the airbag cushion 104. The supply ports include a passenger side supply port 148 that overlaps at a predetermined location of the occupant side panel 120 of the airbag cushion 104 with the diffuser 124 contained therein. The driver's side airbag device 100 is further provided with a temporary stitched part 150 that breakably stitches the diffuser 124 and a predetermined portion of the occupant side panel 120 of the airbag cushion 104 across the occupant side supply opening 148 of the diffuser 124.

A driver's side airbag device 100 is provided with a diffuser 124 that is contained in an airbag cushion 104 and straightens gas flow from an inflator 112. The diffuser 124 has a connecting part 136 that is connected to the inflator 112 and one or a plurality of supply ports that supply gas received from the inflator 112 into the airbag cushion 104. The supply ports include a passenger side supply port 148 that overlaps at a predetermined location of the occupant side panel 120 of the airbag cushion 104 with the diffuser 124 contained therein. The driver's side airbag device 100 is further provided with a temporary stitched part 150 that breakably stitches the diffuser 124 and a predetermined portion of the occupant side panel 120 of the airbag cushion 104 across the occupant side supply opening 148 of the diffuser 124.

A curtain airbag is proposed to improve the deployability of an airbag cushion while simplifying the structure of the curtain airbag by forming a sub-chamber. The curtain airbag includes a main chamber of an airbag cushion secured to an upper end inside a vehicle body to be deployed to a lower end thereof, a first sub-chamber of the airbag cushion deployed above a pillar trim while pushing the vehicle body to move the main chamber towards a center of a vehicle, and a second sub-chamber of the airbag cushion deployed between an end of the pillar trim and the main chamber, thus pushing the main chamber to prevent the main chamber from being caught by the end of the pillar trim.

A curtain airbag is proposed to improve the deployability of an airbag cushion while simplifying the structure of the curtain airbag by forming a sub-chamber. The curtain airbag includes a main chamber of an airbag cushion secured to an upper end inside a vehicle body to be deployed to a lower end thereof, a first sub-chamber of the airbag cushion deployed above a pillar trim while pushing the vehicle body to move the main chamber towards a center of a vehicle, and a second sub-chamber of the airbag cushion deployed between an end of the pillar trim and the main chamber, thus pushing the main chamber to prevent the main chamber from being caught by the end of the pillar trim.