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Improvements in or relating to air-bags

A technology of airbags and gases, applied in textiles, fabrics, multi-strand fabrics, etc.

Active Publication Date: 2016-11-16
AUTOLIV DEV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, there is no requirement that the two layers of the airbag 1 be tightly interwoven in the non-inflatable region 6

Method used

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  • Improvements in or relating to air-bags
  • Improvements in or relating to air-bags
  • Improvements in or relating to air-bags

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] first reference figure 2 , showing a representative of a conventional non-inflatable region of an IC airbag, such as can be used in figure 1 A known airbag 1 is shown.

[0031] figure 2 A grid of cells 8 is shown, with some cells represented in white 9 and others shaded 10 . figure 2 A schematic representation of the weave of one of the fabric layers making up the non-inflatable region of the airbag. The grid of cells corresponds to the warp and weft threads of the fabric layer, the vertical columns of the grid representing the warp threads and the horizontal rows of the grid representing the weft threads (or vice versa).

[0032] if figure 2 The layer shown is considered as the upper layer of a two layer fabric, the shaded cells 10 represent the intersections where the warp threads pass above the weft threads, and the white cells represent the intersection points where the warp threads pass below the weft threads. A technically savvy reader should recognize th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

An air-bag for a motor vehicle, the air-bag being formed from two superposed layers of fabric, each of the layers being woven from a plurality of yarns, the layers of fabric being connected to each other at least partially through interweaving of the yarns of the two layers with each other, wherein the air-bag comprises: at least one inflatable region, in which the two layers of fabric are substantially not connected to each other, so that gas can be introduced into the space between the two layers to inflate the inflatable region; and at least one non-inflatable region, the non-inflatable region comprising an area over which, for one of the layers of fabric, there is a first number of crossing points of yarns that form the layer of fabric, and there is a second number of connections between the two layers, wherein at each connection a yarn of the layer of fabric extends across to the other layer and passes over the far side of the a yarn of the other layer, and wherein the second number is no more than 0.0033 times the first number.

Description

technical field [0001] The present invention relates to air bags, and more particularly to air bags having both inflatable and non-inflatable regions. Background technique [0002] Certain bladders are common with both inflatable and non-inflatable regions. E.g, figure 1 A schematic diagram of a conventional inflatable curtain (IC) type airbag is shown. Prior to inflation, such air bags are typically stored in a rolled and / or folded fashion along the roofline of the vehicle above the side windows. When the airbag is activated (if, for example, a rollover situation is detected), the airbag inflates and deploys downward to cover the front and rear side windows and the B-pillar. This provides a cushion when the vehicle occupants are thrown against the interior side walls of the vehicle, and also presents a barrier that helps prevent occupants from being thrown out of the vehicle through the windows. [0003] refer to figure 1 , this airbag 1 comprises several inflatable re...

Claims

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Application Information

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IPC IPC(8): B60R21/16B60R21/21D03D1/02D03D11/02
CPCB60R21/235B60R2021/23547B60R2021/23571B60R2021/23509D03D1/02D10B2505/124B60R21/213B60R21/232B60R21/237B60R2021/0018B60R2021/23192B60R2021/23542
Inventor G·伍顿H·迪安
Owner AUTOLIV DEV AB
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