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Inflatable safety air bag

A technology of airbags and airbags, which is applied in vehicle safety arrangement, pedestrian/passenger safety arrangement, transportation and packaging, etc., and can solve the problems of complex and expensive configuration

Active Publication Date: 2009-02-04
AUTOLIV DEV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But such a configuration is complex and expensive

Method used

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  • Inflatable safety air bag
  • Inflatable safety air bag
  • Inflatable safety air bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] For more details refer to figure 1 , which illustrates a part of an inflatable airbag 1 in its initial production phase. The inflatable airbag 1 comprises a lower fabric sheet material 2 which, as can be seen from the figures, has a generally square configuration, but with slightly rounded corners. The upper (inner) surface of the fabric sheet material 2 is preferably covered with a protective layer to protect the weave of the fabric material from the hot and aggressive inflation air flow used to inflate the airbag.

[0032] At a substantially central position in the airbag fabric 2, a gas inlet 3 is formed, sized and configured to cover a portion of the inflator 4, such a conventional type of gas generator being known per se. The gas generator has an outwardly facing peripheral mounting flange 5 , where the airbag fabric is fastened around the reinforcement region of the gas inlet opening 3 . The portion of the inflator projecting through the gas inlet hole 3 defines...

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PUM

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Abstract

An inflatable air-bag is disclosed, which is provided with a controllable vent formed in the fabric of the air-bag. The vent comprises a hole formed in the fabric of the air-bag and a flexible vent tube which extends inwardly of the air-bag from the hole so as to terminate in an open free-end located within the air-bag. The free end of the vent tube is normally tethered within the air-bag so as to maintain the vent in a closed condition but is releasable in response to a signal so as to open the vent. In one arrangement the vent tube is fixed to the inner surface of the air-bag around the hole and is configured so as to have a tapering cross-section which is smaller at the free-end of the tube then at the fixed end of the tube. In another arrangement the vent tube is fixed to the inner surface of the air-bag fabric around the vent hole by stitching which runs around the periphery of the hole and which is located within the vent tube.

Description

technical field [0001] The present invention relates to inflatable airbags, and more particularly to inflatable airbags that can provide protection for vehicle occupants in the event of an accident. Background technique [0002] It is known to provide inflatable airbags that can be inflated in the event of an accident to provide protective cushioning in front of or near motor vehicle occupants. Based on this use, a sufficiently airtight airbag is considered to be preferred in order to ensure that the airbag can remain inflated for the longest period of time, while it has been found through practical use that it is preferable that the airbag has at least one air hole, because otherwise, the Then when the occupant hits the airbag, it will simply bounce off the airbag. Even if the resulting air bag deflates rapidly after initial deployment, providing the air bag with holes has been found to provide a more suitable "cushion effect". However, the deployment of the airbag is usu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/239
CPCB60R21/239B60R21/16
Inventor 克劳迪娅·扎格尔
Owner AUTOLIV DEV AB