Gas bag protection device
First Claim
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1. A gas bag protection device comprising:
- a gas bag which has an outer wall defining an inflatable volume, said outer wall being made of a first material;
said outer wall having at least one outflow opening;
a membrane made of an extensible, second material which is fastened to said outer wall and covers said outflow opening in a not fully inflated state of said gas bag; and
a device provided outside said gas bag and serving for destroying said membrane;
said gas bag and said device being arranged spaced apart from each other such that said membrane meets said device only when a predetermined internal pressure of said gas bag has been reached;
wherein said membrane is arranged inside said gas bag volume and bulges outwards through said outflow opening before reaching said device, wherein said membrane defines a recess that extends inwardly of said gas bag from said outflow opening prior to inflation of said gas bag, said recess of said membrane having a pair of side walls that face each other and extend inwardly from said outflow opening.
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Abstract
A gas bag protection device comprises a gas bag which has an outer wall made of a first material. The outer wall has at least one outflow opening. A membrane made of an extensible, second material is provided which is fastened to the outer wall and covers the outflow opening in the not fully inflated state of the gas bag. The gas bag protection device further comprises a device provided outside the gas bag and serving for destroying the membrane. The gas bag and the device are arranged spaced so far apart from each other that the membrane meets the device only when a predetermined internal pressure of the gas bag has been reached.
15 Citations
16 Claims
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1. A gas bag protection device comprising:
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a gas bag which has an outer wall defining an inflatable volume, said outer wall being made of a first material; said outer wall having at least one outflow opening; a membrane made of an extensible, second material which is fastened to said outer wall and covers said outflow opening in a not fully inflated state of said gas bag; and
a device provided outside said gas bag and serving for destroying said membrane;
said gas bag and said device being arranged spaced apart from each other such that said membrane meets said device only when a predetermined internal pressure of said gas bag has been reached;
wherein said membrane is arranged inside said gas bag volume and bulges outwards through said outflow opening before reaching said device, wherein said membrane defines a recess that extends inwardly of said gas bag from said outflow opening prior to inflation of said gas bag, said recess of said membrane having a pair of side walls that face each other and extend inwardly from said outflow opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification