US 2009/0212542 A1Published application

Side-collision airbag apparatus

AssigneeTakata Corporation

InventorsTadataka Toda, Liang Yin

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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.

Claims8

Dependent claims

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 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 the interior of a seatback portion of a vehicle seat, the airbag 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 the 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;
and
a communicating portion for communicating gas between the first bag portion and the second bag portion.

2 more elements

A side airbag module comprising:

an airbag formed from coated fabric and including connected and fluidly communicating first and second portions;
and
a cylindrical inflator for providing gas to inflate an airbag;
wherein prior to inflation the airbag is stored in a folded state in the interior of a seatback portion of a vehicle seat, and wherein the airbag is configured to be inflated and deploy to a position alongside an occupant of the seat so that the first portion of the airbag receives a lumbar part of the occupant and the second portion of the airbag receives a chest part of the occupant;
wherein the second portion includes a vent hole, and wherein the inflator extends across both the first and second portions of the airbag, 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 portion at a distal end of the gas distributing member and a gas passage that opens into the second portion and is formed between the gas distributing member and a peripheral surface of the inflator, wherein the gas distributing member is fitted to the peripheral surface and configured to distribute and supply gas to the first and second portions so that the flow rate of gas from the inflator into the first portion is higher than the flow rate of gas from the inflator into the second portion.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/314,127Filed 4 Dec 2008
Priority: JP 2008-04160922 Feb 2008
Published: 27 Aug 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B60R 21/207
Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components: in…
B60R 21/233
Characterised by their shape, construction or spatial configuration: comprising a plurality of individual compartments; comprising two or more…
B60R 21/235
Inflatable members: characterised by their material
B60R 21/239
Inflatable members: characterised by their venting means