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US 12,589,710 B2Granted
Vehicle airbag device and passenger protection device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsToshiki Iwama, Mitsuyoshi Ohno, Yu Suzuki, Tatsuya Hashido
Life of this patent
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Abstract
A left-right pair of rear tethers is configured such that one-end portions thereof are anchored to a left-right pair of front-rear extension portions, other-end portions thereof are anchored to a seatback or to the vehicle body, and during passenger restraint each of a left-right pair of front-rear extension portions is pulled relatively in a seat diagonally rearward and downward direction such that a coupling portion approaches a femur area of a passenger.
Claims15
A vehicle airbag device, comprising:
- an inflator that is configured to generate gas during a vehicle collision;
- an airbag that is configured to be supplied with the gas and configured to expand and deploy from a seat rear side to a seat front side of an upper section of a vehicle seat;
- and
- a left-right pair of rear tethers that couples the airbag to a seatback of the vehicle seat or to a vehicle body,
- wherein the airbag includes:
- a front-rear chamber including
- a left-right pair of front-rear extension portions that is configured to expand and deploy toward the seat front side past left and right sides of a head of a passenger seated in the vehicle seat, and
- a coupling portion that links together, in a seat left-right direction, front end portions at completion of expansion and deployment of the left-right pair of front-rear extension portions, and
- an airbag body that is configured to expand and deploy at the seat rear side of the coupling portion toward a passenger side with a delay with respect to the front-rear chamber, wherein the airbag body is configured to be compressed so as to be sandwiched between a femur area and a chest area of the passenger and contact both the femur area and the chest area of the passenger while the front-rear extension portions are being stretched in a seat front-rear direction during passenger restraint to restrain the passenger,
- one-end portions of the left-right pair of rear tethers are anchored to the left-right pair of front-rear extension portions,
- other-end portions of the left-right pair of rear tethers are anchored to the seatback or to the vehicle body, and
- each of the left-right pair of front-rear extension portions is configured to, during the passenger restraint, be pulled relatively in a seat diagonally rearward and downward direction to cause the coupling portion to approach the femur area of the passenger.
9 more elements
A passenger protection device, comprising:
- a vehicle seat for a passenger to sit on;
- and
- a vehicle airbag device of installed at a seat rear side of an upper section of the vehicle seat, wherein
- the vehicle airbag device comprises
- an inflator that is configured to generate gas during a vehicle collision;
- an airbag that is configured to be supplied with the gas and configured to expand and deploy from the seat rear side to a seat front side of the upper section of the vehicle seat;
- and
- a left-right pair of rear tethers that couples the airbag to a seatback of the vehicle seat or to a vehicle body,
- the airbag includes:
- a front-rear chamber including
- a left-right pair of front-rear extension portions that is configured to expand and deploy toward the seat front side past left and right sides of a head of the passenger seated in the vehicle seat, and
- a coupling portion that links together, in a seat left-right direction, front end portions at completion of expansion and deployment of the left-right pair of front-rear extension portions, and
- an airbag body that is configured to expand and deploy at the seat rear side of the coupling portion toward a passenger side with a delay with respect to the front-rear chamber, wherein the airbag body is configured to be compressed so as to be sandwiched between a femur area and a chest area of the passenger and contact both the femur area and the chest area of the passenger while the front-rear extension portions are being stretched in a seat front-rear direction during passenger restraint to restrain the passenger,
- one-end portions of the left-right pair of rear tethers are anchored to the left-right pair of front-rear extension portions,
- other-end portions of the left-right pair of rear tethers are anchored to the seatback or to the vehicle body, and
- each of the left-right pair of front-rear extension portions is configured to, during the passenger restraint, be pulled relatively in a seat diagonally rearward and downward direction to cause the coupling portion to approach the femur area of the passenger.
13 more elements
Dependencies are inferred from the claim text.