Airbag Cushion with Multiple Chambers
AssigneesKia Motors Corporation, Hyundai Motor Company
InventorHyeongho CHOI
Life of this patent
Estimating the term…
Abstract
An airbag cushion has multiple chambers of which the expansion order and speed are controlled. The airbag cushion can expand in a predetermined order at a predetermined speed to optimally protect a passenger. Therefore, the airbag cushion can rapidly expand between the steering wheel and the passenger, without injuring the passenger.
Claims19
An airbag cushion with multiple chambers comprising:
- an inner chamber that is connected to directly receive inflation gas from an inflator;
- and
- a first chamber and a second chamber that are connected to the inner chamber to respectively receive the inflation gas from the inner chamber;
- wherein at least one vent hole is formed on a boundary of the inner chamber such that the amount of inflation gas supplied to the second chamber is larger than the amount of inflation gas supplied to the first chamber.
An airbag cushion with multiple chambers, comprising:
- an inner chamber that is connected to directly receive inflation gas from an inflator;
- and
- a first chamber and a second chamber that are connected to the inner chamber to respectively receive the inflation gas from the inner chamber;
- wherein first inner vent holes and second inner vent holes having the same size are formed on the boundary of the inner chamber to supply inflation gas into the first chamber and the second chamber, respectively;
- the first chamber and the second chamber are disposed at both left and right sides of the airbag cushion;
- and
- the inner chamber runs from the top to the bottom of the airbag cushion between the first chamber and the second chamber.
The airbag cushion as defined in claim 13, wherein the inner chamber, the first chamber, and the second chamber are formed by attaching a first cushion sheet to a second cushion sheet to form a cushion space therein;
- the center of the first cushion sheet is recessed away from the outside of the airbag cushion to form the inner chamber such that the cushion space is divided by the inner chamber into the first chamber and the second chamber;
- the first cushion sheet overlaps between the inner chamber and the first cushion sheet such that the inner chamber is blocked from the outside, the overlapping portion of the first cushion sheet functions as a tether, and inflation height of the airbag cushion is adjusted by the length of the inner chamber and the tether;
- and
- an outer vent hole facing the outside of the airbag cushion is formed at a portion where the second cushion sheet contacts the inner chamber.
An airbag cushion with multiple chambers comprising
- a first cushion sheet and a second cushion sheet attached to form a cushion space therein;
- and
- two inner chambers are formed by depressing along a first axis crossing the center of the first cushion sheet and then along a second axis crossing the center of the first cushion sheet and running perpendicular to the first axis;
- wherein the cushion space is divided into four spaces by the two inner chambers perpendicularly crossing each other;
- the inner chambers are connected to directly receive inflation gas from an inflator;
- and
- the four spaces divided by the two inner chambers receive the inflation gas from the inner chambers.
Dependencies are inferred from the claim text.