Airbag apparatus

Patent metadata

Field	Value
Publication number	US-10953837-B2
Application number	US-201816152542-A
Country	US
Kind code	B2
Filing date	Oct 5, 2018
Priority date	Oct 20, 2017
Publication date	Mar 23, 2021
Grant date	Mar 23, 2021

Abstract

An airbag apparatus includes an airbag bag body that is inflated and expanded by a gas which is generated from an inflator. The airbag bag body includes an inner bag and an outer bag. The inner bag is inflated and expanded by the gas which is supplied from the inflator. The outer bag covers the inner bag and communicates with the inner bag via a communication hole. The outer bag has a depression part on a lower part of the outer bag in a state of being supplied with the gas through the communication hole from the inner bag and being inflated and expanded.

First claim

What is claimed is:

1. An airbag apparatus that protects an occupant, the apparatus comprising:
an airbag bag body that is inflated and expanded by a gas which is generated from an inflator,
wherein the airbag bag body comprises:
an inner bag that is inflated and expanded by the gas which is supplied from the inflator; and
an outer bag that covers the inner bag and that communicates with the inner bag via a communication hole,

the outer bag has a depression part that is formed such that the depression part is depressed toward an upward direction of a vehicle from a lower surface of the outer bag in a state of being supplied with the gas through the communication hole from the inner bag and being inflated and expanded, and
the depression part is formed of a circumferential side wall and a bottom surface, and the bottom surface of the depression part is sewn to the inner bag.

2. The airbag apparatus according to claim 1 , wherein in the state of being inflated and expanded, the recess part accommodates an obstacle that is attached to a seat cushion and that is arranged at a vehicle body rearward position of an instrument panel and in a vicinity of the instrument panel.

Assignees

• Honda Motor Co Ltd

Inventors

• Arima Tetsuhiro

Classifications

• B60R2021/006

  Type of passenger · CPC title

• B60R21/16 Primary

  Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags ({protective garments with automatically inflatable shock-absorbing means A41D13/018; } connection of valves to inflatable elastic bodies B60C29/00) · CPC title

• B60R21/264

  using instantaneous generation of gas, e.g. pyrotechnic (B60R21/268 takes precedence) · CPC title

• B60R21/233 Primary

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

• B60R2021/23324

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