Abstract: An airbag device includes an airbag that is supplied with gas generated by an inflator during a vehicle collision and that inflates and deploys from a rear side of a vehicle seat toward a front side via an upper side. In an inflated and deployed state, the airbag includes a pair of front-rear chambers extending in a seat front-rear direction via left and right sides of a head of a passenger, an airbag body that is in communication with the pair of front-rear chambers and that is disposed at a front side of the passenger between the pair of front-rear chambers, and a pair of rear tethers including one-end portions attached to the airbag body and other-end portions attached to a seatback of the vehicle seat. At least a rear tether on a side door side is configured so as to be releasable after a collision of the vehicle.

Abstract: An airbag device has an airbag. The airbag has a front-rear chamber and an airbag main body. The front-rear chamber has a left and right pair of front-rear extending portions that pass by respective left and right sides of a head of a passenger and inflate and deploy toward the seat front side, and a connecting portion connecting front end portions of the pair of front-rear extending portions in a seat left-right direction. Gas is supplied to the airbag main body via a communication hole positioned at a seat rear side of the connecting portion of the front-rear chamber that has inflated and deployed. Owing to inflation and deployment of the front-rear chamber, the airbag main body passes through a gap between a ceiling of the vehicle and the head from the seat rear side toward the seat front side, and thereafter, inflates and deploys toward the seat rear side.

Abstract: An airbag device includes an airbag that is supplied with gas during a vehicle collision, and that inflates and deploys from a rear side of a vehicle seat toward a front side via an upper side thereof. In an inflated and deployed state the airbag includes a pair of front-rear chambers extending in a front-rear direction via left and right sides of the head of a passenger, and an airbag body in communication with the pair of front-rear chambers, that is disposed at a front side of the passenger between the pair of front-rear chambers, and that is compression deformed in a state supported by the pair of front-rear chambers during restraint of the passenger. The airbag is configured such that entry of at least the head of the passenger into gaps between the front-rear chambers and the airbag body is suppressed during a latter half of restraining the passenger.

Abstract: An airbag device includes an airbag that is supplied with gas generated by an inflator during a vehicle collision, and that inflates and deploys from a rear side of a vehicle seat toward a front side via an upper side. In an inflated and deployed state, the airbag includes a pair of front-rear chambers extending in a seat front-rear direction via left and right sides of a head of a passenger, an airbag body that is communicated with the pair of front-rear chambers and that is disposed at a front side of the passenger between the pair of front-rear chambers, and an auxiliary chamber into which gas inside the airbag body flows indirectly at least during restraint of the passenger by the airbag body.

Abstract: An airbag device including an airbag that inflates and deploys from a seat rear side of a vehicle seat toward a seat front side via a seat upper side. In an inflated and deployed state, the airbag includes a pair of front-rear chambers extending in a front-rear direction via left and right sides of a head of a passenger, an airbag body that is in communication with the pair of front-rear chambers and that is disposed at a seat front side of the passenger between the pair of front-rear chambers, and a pair of rear tethers including one-end portions attached to the airbag body and other-end portions attached to a seatback. At a time of restraint of the passenger, the airbag body is pulled by the rear tethers obliquely rearward and downward such that the front-rear chambers press shoulders of the passenger from a seat upper side.

Abstract: An airbag device has an airbag. The airbag has a front-rear chamber and an airbag main body. The front-rear chamber has a left and right pair of front-rear extending portions that pass by respective left and right sides of a head of a passenger and inflate and deploy toward the seat front side, and a connecting portion connecting front end portions of the pair of front-rear extending portions in a seat left-right direction. The airbag main body inflates and deploys toward a side of the passenger at a seat rear side of the connecting portion, later than the front-rear chamber. The airbag main body has a downward-force applying portion that applies force directed toward a seat lower side to the airbag at a time when the passenger is restrained by the airbag.

Abstract: An airbag device has an airbag. The airbag has a front-rear chamber and an airbag main body. The front-rear chamber has a left and right pair of front-rear extending portions that pass by respective left and right sides of a head of a passenger seated in a vehicle seat and inflate and deploy toward the seat front side, and a connecting portion connecting front end portions of the pair of front-rear extending portions in a seat left-right direction. The airbag main body inflates and deploys toward a side of the passenger at a seat rear side of the connecting portion, later than the front-rear chamber. At a time when the passenger is restrained, the airbag main body is compressed in a seat front-rear direction while stretching the front-rear chamber in the seat front-rear direction.

Abstract: An in-seat airbag device including an airbag main body having a front-rear chamber that expands past a side of a head of a passenger toward a seat front side and is disposed at the side of the head of the passenger, and a distal end chamber that expands from a seat front side end portion of the front-rear chamber toward a seat width direction inner side and is disposed at a seat front side of a face of the passenger, wherein the airbag main body and a seatback frame are connected by a force limiter mechanism that moves the airbag main body toward a seat front side when a load, which is toward a seat front side and is applied to the airbag main body, exceeds a predetermined threshold value at a time of head restraining when the head of the passenger is restrained.

Abstract: An in-seat airbag device having an airbag main body including: an outer side airbag portion having a front-rear chamber that expands past one side of a head of a passenger toward a seat front side, a left-right chamber that expands from a seat front side end portion of the front-rear chamber toward a seat width direction inner side and is disposed at a seat front side of a face of the passenger, a distal end chamber that expands from a seat width direction inner side end portion of the left-right chamber toward a seat rear side and is disposed at another side of the head of the passenger, and a tether that joins the front-rear chamber and the distal end chamber; and an inner side airbag portion that expands and is disposed between the front-rear chamber, the left-right chamber and the distal end chamber.

Abstract: An in-seat airbag device including an airbag main body having a front-rear chamber that expands past a side of a head of a passenger toward a seat front side and is disposed at the side of the head of the passenger, and a distal end chamber that expands from a seat front side end portion of the front-rear chamber toward a seat width direction inner side and is disposed at a seat front side of a face of the passenger, wherein the airbag main body and a seatback frame are connected by a force limiter mechanism that moves the airbag main body toward a seat front side when a load, which is toward a seat front side and is applied to the airbag main body, exceeds a predetermined threshold value at a time of head restraining when the head of the passenger is restrained.

Abstract: An in-seat airbag device, includes: an airbag main body having a front-rear chamber that, due to gas jetted from an inflator, expands past a side of a head of a passenger toward a seat front side and is disposed at the side of the head of the passenger, and a distal end chamber that expands from a seat front side end portion of the front-rear chamber toward a seat width direction inner side and is disposed at a seat front side of a face of the passenger, wherein the airbag main body is accommodated in a state of having an outwardly-wound portion that is wound outwardly in a form of a roll whose axial direction is a seat vertical direction, after a distal end portion of the distal end chamber is folded-over toward a side opposite a passenger side.

Abstract: An in-seat airbag device, includes: an airbag main body having a front-rear chamber that, expands past one side of a head of a passenger toward a seat front side and is disposed at the one side of the head of the passenger, a left-right chamber that expands from a seat front side end portion of the front-rear chamber toward a seat width direction inner side and is disposed at a seat front side of a face of the passenger, and a distal end chamber that expands from a seat width direction inner side end portion of the left-right chamber toward a seat rear side and is disposed at another side of the head of the passenger, wherein the airbag main body is structured such that, in a state in which expansion is completed, the left-right chamber has a curved shape as seen in plan view.