Far side airbag device for vehicle

Patent metadata

Field	Value
Publication number	US-2016107604-A1
Application number	US-201514875116-A
Country	US
Kind code	A1
Filing date	Oct 5, 2015
Priority date	Oct 21, 2014
Publication date	Apr 21, 2016
Grant date	—

Abstract

A far side airbag device for a vehicle includes: an inflator disposed within a side support portion at a vehicle transverse direction central side of a seat back; an airbag that is stored within the side support portion, that receives a supply of gas from the inflator, and that expands and deploys while rupturing a planned rupture portion installed at the side support portion; and a partitioning portion partitioning the airbag into a main chamber and a chamber for rupturing that is provided at a rear side and a lower side of the main chamber. At least a lower end side region of the chamber for rupturing, in an expanded and deployed state, protrudes further toward a vehicle front side than the planned rupture portion. Communication ports communicating the respective chambers with one another are formed at an upper end side and a lower end side of the partitioning portion.

First claim

What is claimed is:

1 . A far side airbag device for a vehicle, comprising:
an inflator that is disposed within a side support portion at a vehicle transverse direction central side of a seat back; an airbag that is stored within the side support portion, that receives a supply of gas from the inflator, that expands and deploys while rupturing a planned rupture portion that is installed at the side support portion, and that protects a region at least from a head portion to a chest portion of a vehicle occupant; and a partitioning portion that partitions the airbag into a main chamber and a chamber for rupturing that is provided at a rear side and a lower side of the main chamber and that houses the inflator, at least a lower end side region of the chamber for rupturing, in an expanded and deployed state, protruding further toward a vehicle front side than the planned rupture portion, with communication ports, that communicate the respective chambers with one another, being formed at an upper end side and a lower end side of the partitioning portion.

2 . The far side airbag device for a vehicle of claim 1 , wherein a front portion side, from an upper end portion to a lower end portion of the chamber for rupturing, in the expanded and deployed state, protrudes further toward the vehicle front side than the planned rupture portion.

3 . The far side airbag device for a vehicle of claim 2 , wherein the chamber for rupturing is formed such that, in the expanded and deployed state, a front edge portion runs along the planned rupture portion.

4 . The far side airbag device for a vehicle of claim 1 , wherein the partitioning portion is structured by a sewn partitioning portion that includes a sewn portion at which the airbag is sewn.

5 . The far side airbag device for a vehicle of claim 1 , wherein the partitioning portion is structured by an inner bag that is provided within the airbag.

6 . The far side airbag device for a vehicle of claim 1 , wherein the partitioning portion is structured by a tether that is sewn to the airbag.

7 . The far side airbag device for a vehicle of claim 1 , wherein an opening surface area of the communication port formed at the lower end side of the partitioning portion is set to be larger than an opening surface area of the communication port formed at the upper end side of the partitioning portion.

8 . The far side airbag device for a vehicle of claim 1 , wherein the chamber for rupturing expands and deploys at an earlier stage and at a higher pressure than the main chamber when the inflator operates, and a low end side of the planned rupture portion is ruptured by a lower end portion of the chamber for rupturing, in an expanded and deployed state, whereby at least a lower end side region of the chamber for rupturing protrudes further toward the vehicle front side than the planned rupture portion.

9 . The far side airbag device for a vehicle of claim 1 , wherein the partitioning portion in side view is formed with a lower end portion and a vertical direction intermediate portion that extend in a rectilinear form, and with an upper end portion that is convex toward the upper end side and that curves toward the rear side.

Assignees

• Toyota Motor Co Ltd

Inventors

• Fujiwara Yusuke

Classifications

• B60R2021/23161

  specially adapted for protecting at least two passengers, e.g. preventing them from hitting each other · CPC title

• B60R21/207

  in vehicle seats · CPC title

• B60R2021/23324

  Inner walls crating separate compartments, e.g. communicating with vents · CPC title

• B60R21/233

  comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other (B60R21/232 takes precedence) · CPC title

• B60R21/23138 Primary

  specially adapted for side protection (B60R21/23184, B60R21/232 take precedence) · CPC title