Seat centric airbag restraint systems having pelvis restraint features, along with related methods. In some implementations, a first seat-mounted airbag cushion may be deployed along a first side of a vehicle occupant and a second seat-mounted airbag cushion may be deployed along a second side of the vehicle occupant. A first pelvis restraint chamber may be deployed below the first seat-mounted airbag cushion at an angle relative to the first seat-mounted airbag cushion and towards a first upper thigh of the vehicle occupant. The first pelvis restraint chamber may inhibit forward translation of the vehicle occupant within a vehicle seat by tensioning the pelvis region of the occupant.

A vehicular seat cushion airbag is disclosed. The seat cushion airbag includes a first cushion, which is mounted on a seat cushion of a vehicle so as to be expanded at the rear portion of a passenger's thigh, and a second cushion, which extends from the first cushion in an upward direction of a bolster portion of the seat cushion so as to be expanded toward the lateral side surface of the passenger's thigh, wherein the first cushion is expanded at the rear portion of the passenger's thigh so as to prevent forward movement of the passenger's pelvis, and the second cushion is expanded toward the lateral side surface of the passenger's thigh so as to prevent outward spreading of the passenger's legs.

A seat airbag for a vehicle is provided. The seat airbag is installed at a lateral side of a seat back to allow a cushion thereof to inflate forward. A front part of the cushion is divided into a head chamber disposed at an upper level, a chest chamber disposed at an intermediate level and a pelvis chamber disposed at a lower level. The airbag includes first to third tethers, which form a single cord connecting the chambers to one another, and are provided in the airbag to protect a passenger while surrounding the passenger.

A seat airbag apparatus for a vehicle and a method of controlling the operation thereof, includes side cushions deployed from the seatback, front cushions configured to be deployed from the side cushions, and inflators for the side cushions and inflators for the front cushions. The deployment operation of the side cushions and the deployment operation of the front cushions are respectively controlled depending on a normal seating mode and a relax mode of an occupant and a side collision and a front collision of the vehicle.

An apparatus, system, and method for helping to protect occupants of a vehicle seat in the event of a collision. The vehicle seat includes a base with a bottom cushion, a backrest with a back cushion, and a side rest having a side cushion that extends upward from the bottom cushion and forward from the back cushion. The apparatus comprises a deployable restraint stored in a pre-deployment condition in the side rest. The deployable restraint comprising an airbag and an inflator for inflating and deploying the airbag. When inflated to a deployed condition the restrain cushions the occupant against impacts with the side rest.

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 rear vehicle seat airbag module configured to be mounted to a portion of a seat back of a front vehicle seat comprising an inflator and an inflatable cushion comprising a lower portion, an upper portion and an external tether connecting the lower portion and the upper portion. The inflator provides inflation gas to the inflatable cushion and the inflatable cushion is configured to deploy forward of an occupant seated in a rear seat of a vehicle by curving away from the occupant. The external tether is configured to control a trajectory of the deployment of the inflatable cushion by pulling the upper portion toward the lower portion to curve the inflatable cushion such that the upper portion is located above the lower portion.

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.

An airbag includes a manifold having an outer panel and an inflation chamber defined at least in party by the outer panel. The airbag further includes a first compartment and a second compartment spaced from the first compartment connected to the outer panel and positioned external to the inflation chamber. A first one-way valve is in fluid communication with the manifold and the first compartment, and a second one-way valve is in fluid communication with the manifold and the second compartment.

[Problem] To expand and deploy a hood-shaped airbag in a reliably sandwiched condition between the top of a shoulder of a seated occupant and a seatbelt in a normal set condition during a collision, and reduce injury to the occupant by a device other than an airbag such as a seatbelt or the like. [Resolution Means] An airbag device 11 contains an airbag 12 and inflator 13 integrally covering the head 2a and a side portion of a seated occupant 2. The airbag 12 in a flat condition prior to folding has a plurality of chambers 12c demarcated in a longitudinal direction. The chamber 12c has a head protecting chamber 12ca stored in an upper portion of a backrest portion 1b of a seat 1 and a pair of side protecting chambers 12cb stored in opposing positions separated in a vehicle width direction on both left and right sides of the backrest portion 1b. At the time of expansion and deployment, the side protecting chamber 12cb expands and deploys between the seatbelt 3 and occupant 2, and thus the airbag 12 is configured such that a space S is formed between the occupant 2 and airbag 12 deployed at a position where the seatbelt 3 passes.