Airbag module for a motor vehicle
First Claim
Patent Images
1. An airbag module for a motor vehicle comprising:
- an airbag configured to be inflated with gas to protect a person, anda protective envelope enclosing the airbag in a gas-tight manner, and that is formed at least partially from a flexible protective film,wherein the protective film includes a gas-tight weakened region and a second region defining the weakened region,wherein the protective film is configured to tear open along the weakened region when the airbag presses against the protective film during inflation,wherein the weakened region is configured to be bag-shaped in cross section by stretching the protective film, and has a smaller thickness in cross section than the second region, andwherein the weakened region projects away from the airbag or is at least partially folded toward the second region.
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Abstract
An airbag module for a motor vehicle, the modeling including an airbag, that may be inflated with gas to protect a person, and a protective envelope enclosing the airbag in a gas-tight manner. The protective envelope is formed at least partially from a flexible protective film. The protective film comprises a gas-tight weakened region, along which the protective film tears open when the airbag presses against the protective film during inflation. The weakened region is configured to be bag-shaped in cross section by stretching the protective film.
18 Citations
15 Claims
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1. An airbag module for a motor vehicle comprising:
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an airbag configured to be inflated with gas to protect a person, and a protective envelope enclosing the airbag in a gas-tight manner, and that is formed at least partially from a flexible protective film, wherein the protective film includes a gas-tight weakened region and a second region defining the weakened region, wherein the protective film is configured to tear open along the weakened region when the airbag presses against the protective film during inflation, wherein the weakened region is configured to be bag-shaped in cross section by stretching the protective film, and has a smaller thickness in cross section than the second region, and wherein the weakened region projects away from the airbag or is at least partially folded toward the second region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An airbag module for a motor vehicle comprising:
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an airbag configured to be inflated with gas to protect a person, and a protective envelope enclosing the airbag in a gas-tight manner, and that is formed at least partially from a flexible protective film, wherein the protective film includes a gas-tight weakened region, wherein the protective film is configured to tear open along the weakened region when the airbag presses against the protective film during inflation, wherein, before inflation of the airbag, the weakened region is configured to be bag-shaped in cross section by stretching the protective film; wherein the protective film further includes a second region defining the weakened region, the weakened region having a smaller thickness in cross section than the second region; and wherein the weakened region is at least partially folded toward the second region or projects away from the airbag.
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Specification