Air-bags
First Claim
1. An air-bag for a motor vehicle comprising:
- first and second layers of fabric, the first and second layers being superimposed, each of the first and second layers being woven from a plurality of yarns, the first and second layers of fabric being connected to each other at least partially through interweaving of the yarns of the first and second layers with each other;
at least one inflatable region, in which the first and second layers of fabric are substantially not connected to each other, so that gas can be introduced into a space between the first and second layers to inflate the inflatable region; and
at least one non-inflatable region, the non-inflatable region including an area over which, for one of the first and second layers of fabric, there is a first number of crossing points of yarns that form the one of the first and second layers of fabric, and there is a second number of connections between the first and second layers, wherein at each connection a yarn of the one layer of fabric extends across to the other layer and passes over a 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.
1 Assignment
0 Petitions
Accused Products
Abstract
An air-bag for a motor vehicle is formed from first and second superposed layers of fabric, each woven from a plurality of yarns. The layers of fabric are connected to each other at least partially through interweaving of the yarns of the two layers with each other. The air-bag includes at least one inflatable region, in which the two layers of fabric are substantially not connected to each other, and at least one non-inflatable region. There is a first number of crossing points of yarns that form the one 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.
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Citations
16 Claims
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1. An air-bag for a motor vehicle comprising:
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first and second layers of fabric, the first and second layers being superimposed, each of the first and second layers being woven from a plurality of yarns, the first and second layers of fabric being connected to each other at least partially through interweaving of the yarns of the first and second layers with each other; at least one inflatable region, in which the first and second layers of fabric are substantially not connected to each other, so that gas can be introduced into a space between the first and second layers to inflate the inflatable region; and at least one non-inflatable region, the non-inflatable region including an area over which, for one of the first and second layers of fabric, there is a first number of crossing points of yarns that form the one of the first and second layers of fabric, and there is a second number of connections between the first and second layers, wherein at each connection a yarn of the one layer of fabric extends across to the other layer and passes over a 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. - View Dependent Claims (2, 3, 4)
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5. An air-bag for a motor vehicle comprising:
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first and second layers of fabric, the first and second layers being superimposed, each of the first and second layers being woven from a first plurality of yarns and a second plurality of yarns, the yarns of the first plurality of yarns being arranged substantially perpendicular to the yarns of the second plurality of yarns, the first and second layers of fabric being connected to each other at least partially through interweaving of the yarns of the first and second layers with each other; at least one inflatable region, in which the first and second layers of fabric are substantially not connected to each other, so that gas can be introduced into a space between the first and second layers to inflate the inflatable region; and at least one non-inflatable region, the non-inflatable region having an area defined by 180 yarns of the first plurality of yarns and 152 yarns of the second plurality of yarns, and wherein within the area there are no more than 90 connections between the first and second layers, wherein at each connection a yarn of one of the first and second layers of fabric extends across to the other of the first and second layers and passes over a far side of a yarn of the other layer. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification