Side-collision airbag apparatus
First Claim
1. A side-collision airbag apparatus, comprising:
- an airbag comprising a first bag portion and a second bag portion adjacent to the first bag portion, the first and second bag portions being formed by connecting two base cloths coated with silicon, the second bag portion having a vent hole, the airbag being stored in a folded state in an interior of a seatback portion of a vehicle seat, the airbag being configured to be deployed to a side of an occupant on the seat by a supply of gas, the deployed airbag receiving a lumbar part of the occupant at the first bag portion and receiving a chest part of the occupant at the second bag portion;
a cylindrical inflator extending across the first bag portion and the second bag portion at a position between the airbag and a rear of the vehicle, the inflator including a gas injecting portion located in the first bag portion at a distal end of the inflator;
a cylindrical gas distributing member having a circumferential surface, an end surface at a distal end of the gas distributing member that projects inward from the circumferential surface, a gas discharge port that opens into the first bag portion and is disposed on the end surface, and a gas passage that opens into the second bag portion and is formed between the gas distributing member and a peripheral surface of the inflator, the gas distributing member being fitted to the peripheral surface and configured to distribute and supply the gas injected from the inflator to the first bag portion and the second bag portion so the flow rate of the gas is higher in the first bag portion than in the second bag portion; and
a communicating portion for communicating gas between the first bag portion and the second bag portion.
5 Assignments
0 Petitions
Accused Products
Abstract
An apparatus includes an airbag having first and second portions formed by seaming silicon coated cloths where the second portion has a vent. The airbag is folded in a seatback, deploys to a side of an occupant by a gas supply, and receives an occupant lumbar at the first portion and a chest at the second portion. An inflator extends across the first and second portions towards a rear of the vehicle and includes a gas injector in the first portion. A gas distributing member has a discharge port opening into the first portion and a passage opening into the second portion between the distributing member and a surface of the inflator. The distributing member is fitted to the surface and distributes gas from the inflator to the airbag so the flow rate is higher in the first portion. A communicating portion transfers gas between the first and second portions.
40 Citations
18 Claims
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1. A side-collision airbag apparatus, comprising:
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an airbag comprising a first bag portion and a second bag portion adjacent to the first bag portion, the first and second bag portions being formed by connecting two base cloths coated with silicon, the second bag portion having a vent hole, the airbag being stored in a folded state in an interior of a seatback portion of a vehicle seat, the airbag being configured to be deployed to a side of an occupant on the seat by a supply of gas, the deployed airbag receiving a lumbar part of the occupant at the first bag portion and receiving a chest part of the occupant at the second bag portion; a cylindrical inflator extending across the first bag portion and the second bag portion at a position between the airbag and a rear of the vehicle, the inflator including a gas injecting portion located in the first bag portion at a distal end of the inflator; a cylindrical gas distributing member having a circumferential surface, an end surface at a distal end of the gas distributing member that projects inward from the circumferential surface, a gas discharge port that opens into the first bag portion and is disposed on the end surface, and a gas passage that opens into the second bag portion and is formed between the gas distributing member and a peripheral surface of the inflator, the gas distributing member being fitted to the peripheral surface and configured to distribute and supply the gas injected from the inflator to the first bag portion and the second bag portion so the flow rate of the gas is higher in the first bag portion than in the second bag portion; and a communicating portion for communicating gas between the first bag portion and the second bag portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A side-collision airbag apparatus, comprising:
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an airbag comprising a first bag portion and a second bag portion adjacent to the first bag portion, the first and second bag portions being formed by connecting two base cloths, the airbag being stored in a folded state in an interior of a seatback portion of a vehicle seat, the airbag being configured to be deployed to a side of an occupant on the seat by a supply of gas, the deployed airbag receiving a lumbar part of the occupant at the first bag portion and receiving a chest part of the occupant at the second bag portion; a cylindrical inflator extending across the first bag portion and the second bag portion at a position between the airbag and a rear of the vehicle, the inflator including a gas injecting portion located in the first bag portion at a distal end of the inflator; a cylindrical gas distributing member having a gas discharge port that opens into the first bag portion at a distal end of the gas distributing member and a gas passage that opens into the second bag portion and is formed between the gas distributing member and a peripheral surface of the inflator, the gas distributing member being fitted to the peripheral surface and configured to distribute and supply the gas injected from the inflator to the first bag portion and the second bag portion so the flow rate of the gas is higher in the first bag portion than in the second bag portion; a communicating portion for communicating gas between the first bag portion and the second bag portion; and a heat cloth configured to nearly close off the communication portion in an initial stage of deployment of the airbag. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification