Patent ID: 7384062

Claim:
An airbag system, comprising: an airbag including therein first and second chambers defined by a partition, and a gas introduction portion through which gas is introduced into the first and second chambers; an inflator having a gas supply portion and arranged opposite to an end of the partition so as to supply gas to the gas introduction portion of the air bag; and a gas guide member disposed in the gas introduction portion and air-tightly connected to an end of the partition so as to define a passage between the gas guide member and the gas supply portion of the inflator so that the gas is capable of flowing through the passage, the gas guide member being arranged to distribute gas from the gas supply portion of the inflator into the first and second chambers, wherein fluid communication between the first and second chambers is allowed only through the passage, the gas guide member being formed of a rigid sheet and having an inner surface which faces the gas supply portion of the inflator so that gas from the gas supply portion of the inflator strikes against the inner surface, the inner surface being curved to surround the gas supply portion of the inflator so as to define the passage between the inner surface and the gas supply portion of the inflator, the inner surface having first and second curved ends which are opposite to each other and separate from the gas supply portion of the inflator so that the first and second curved ends define respectively first and second ends of the passage, the first and second ends of the passage being respectively in communication with the first and second chambers, the inner surface being inclined so that a distance between the first curved end of the inner surface and the gas supply portion of the inflator is larger than a distance between the second curved end of the inner surface and the gas supply portion of the inflator.