A roof mounted airbag is proposed. The roof mounted airbag includes: a fixed chamber having an upper portion fixed to a roof of a vehicle and configured to be expanded downward when gas is supplied into the fixed chamber; a first separated chamber connected to the fixed chamber, having an inside that communicates with an inside of the fixed chamber to be supplied with the gas from the fixed chamber, and configured to be expanded downward when the gas is supplied into the first separated chamber; and a second separated chamber connected to the fixed chamber while being spaced apart from the first separated chamber, having an inside that communicates with the inside of the fixed chamber to be supplied with the gas from the fixed chamber, and configured to be expanded downward when the gas is supplied into second separated chamber.

An airbag includes a main inflation portion to be deployed and inflated at an outer side of the upper body of an occupant, and an auxiliary inflation portion disposed at a position adjacent to an inner side of the main inflation portion and to be deployed and inflated at an obliquely front outer side of a head portion. In the airbag whose deployment and inflation are completed, a maximum dimension in a facing direction in which an outer main body portion and an inner main body portion of the auxiliary inflation portion face each other is smaller than a dimension in a direction orthogonal to the facing direction. The auxiliary inflation portion has the outer main body portion as a joining area, and is joined to the main inflation portion in the joining area, in a state of being in communication with the main inflation portion.

A roof airbag for a vehicle. The roof airbag includes: a main cushion located at a roof panel of the vehicle and configured to be unfolded from a first side portion to a second side portion of the roof panel when being operated; a sub cushion coupled to a side surface of the extended main cushion and unfolded outside the main cushion; and an inflator located at the roof panel of the vehicle and connected to the main cushion or the sub cushion, and configured to inject gas into the main cushion and the sub cushion to unfold the main cushion and the sub cushion.

An occupant protection device for protecting an occupant sitting in a seat includes an inflator, a holding member that is adapted to be disposed in front of a pelvic region of the occupant as sitting in the seat, and an airbag that is formed of a sheet material having flexibility and stored in and held by the holding member in a folded form. The airbag is configured to be inflated with an inflation gas fed by the inflator. The airbag includes a shoulder restraining portion that is configured to be deployed in front of shoulders of the occupant, and a supporting inflatable portion that is disposed in a lower end portion of the airbag as deployed for supporting the shoulder restraining portion. The supporting inflatable portion as deployed includes, in the underside, a supported surface that is adapted to be supported by thighs of the occupant.

A side airbag deviceis provided with a frame side plate partan airbag cushion embedded in a side support of a seat in a stowed state, and an inflator inserted into the airbag cushion The airbag cushion in stowed state includes a cushion rear part assembled to a frame side plate part a cushion extension part that extends along a seat pad of the side support a cushion folding part folded rearward from the cushion extension part and a cushion front part of the cushion folding part arranged rolled or folded toward the outside of the seatback. The cushion extension part expands toward the center of the seatback 444 and presses on the occupant.

A center airbag apparatus may include: an inflator mounted in an instrument panel and configured to inject gas; a first cushion part deployed by the gas injected from the inflator, and configured to support a driver airbag; and a second cushion part connected to the first cushion part, and configured to be deployed between the driver airbag and a passenger airbag to protrude toward the rear of a vehicle based on the driver airbag.

An airbag device provided with an airbag and inflator integrally covering the head and side sections of an occupant seated in a vehicle seat. The airbag, includes, during expansion and deployment, a head protecting chamber that covers the head of the occupant and side protecting chambers that cover the side sections of the occupant, and is stowed in a rolled state, for example, from a first side of the backrest of the vehicle seat to the second side over the upper portion. An additional folding part is provided on the outer periphery of the airbag extending from the attachment end side to the backrest so as to cover at least a part of the outer periphery of the airbag on the side opposite to the seated occupant.

In the side airbag device, in an inflation and deployment state of the side airbag, a tension cloth extendingly disposed across between a front-rear partition and a rear end of the rear bag section is stretched, thereby restricting inflation in the vehicle front-rear direction of the rear bag section. An inflating width in a vehicle width direction of the rear bag section can be increased without significantly changing a position in the vehicle front-rear direction of the front-rear partition. In a flat developed state of the side airbag, the tension cloth is extendingly disposed across between the front-rear partition so folded into two as to protrude toward the rear bag section, and the rear end of the rear bag section. Accordingly, dimensions of each component can be so defined as to cause no redundancy in the rear bag section in the flat developed state, thus compactly folding the side airbag.

An airbag system for a vehicle body includes an inflator and an airbag wherein the inflator is mounted on the vehicle body. The airbag includes a plurality of mounting portions, an inflatable main portion and a supplemental portion integral to the inflatable main portion at an upper edge of the inflatable main portion. The inflatable main portion includes an outboard interface side and an inboard engagement side while the supplemental portion includes an outboard vehicle side and an inboard interface side which is disposed adjacent to a portion of the outboard interface side of the inflatable main portion. The inflatable main portion is configured to deploy inboard of a vehicle window while the supplemental portion is configured to deploy between an upper region of the inflatable main portion and an upper vehicle rail thereby urging an upper region of the inflatable main portion toward an inboard direction.

Airbag assemblies are disclosed that can reduce rotational velocity of an occupant's head during a collision event and thereby mitigate traumatic brain injury/head injury to an occupant. An airbag includes a pair of lobes or protrusions to deploy and extend from the rear face of the airbag on either side of the occupant's head to limit rotation of the head. A pair of vertical tethers within an interior of the airbag configure the lobes and contour the rear face to form one or more low fabric tension zones or bubbles. The lobes maintain high fabric tension, similar to a pressurization of a main inflatable chamber of the airbag.