Airbag for an occupant protection device
First Claim
Patent Images
1. An airbag for an occupant protection device of a vehicle, comprising:
- at least two supporting chambers for providing mechanical stability in the inflated state, wherein the two supporting chambers are arranged spaced apart in a longitudinal direction of the vehicle forming a single column of supporting chambers; and
at least one energy absorption chamber associated with the at least two supporting chambers; and
wherein the at least one energy absorption chamber is more gas permeable than the at least two supporting chambers;
wherein the at least one energy absorption chamber is configured to absorb more energy than the at least two supporting chambers during a first phase of an accident,wherein the at least two supporting chambers form a supporting plane; and
wherein the at least one energy absorption chamber surrounds the single column of the at least two supporting chambers such that a first portion of the energy absorption chamber is arranged on a side of the supporting plane which faces a vehicle occupant to be protected and a second portion of the energy absorption chamber is arranged on an opposite side of the supporting plane at a side which faces away from the vehicle occupant to be protected.
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Abstract
The disclosed airbag is for an occupant protection device, which protects a vehicle occupant in the event of an accident. In order for the airbag to provide a vehicle occupant with a great protective effect, an embodiment may comprise at least one supporting chamber, which gives the airbag mechanical stability in the inflated state, and at least one energy absorption chamber, which is designed to be more gas permeable than the supporting chamber. With such a configurations the energy absorption chamber absorbs more energy than the supporting chamber during the first phase of an accident.
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Citations
10 Claims
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1. An airbag for an occupant protection device of a vehicle, comprising:
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at least two supporting chambers for providing mechanical stability in the inflated state, wherein the two supporting chambers are arranged spaced apart in a longitudinal direction of the vehicle forming a single column of supporting chambers; and at least one energy absorption chamber associated with the at least two supporting chambers; and wherein the at least one energy absorption chamber is more gas permeable than the at least two supporting chambers; wherein the at least one energy absorption chamber is configured to absorb more energy than the at least two supporting chambers during a first phase of an accident, wherein the at least two supporting chambers form a supporting plane; and wherein the at least one energy absorption chamber surrounds the single column of the at least two supporting chambers such that a first portion of the energy absorption chamber is arranged on a side of the supporting plane which faces a vehicle occupant to be protected and a second portion of the energy absorption chamber is arranged on an opposite side of the supporting plane at a side which faces away from the vehicle occupant to be protected. - View Dependent Claims (2, 3, 4)
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5. An airbag for an occupant protection device of a vehicle, comprising:
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a first material layer; and a second material layer connected to the first layer; wherein the two connected material layers are folded along a fold line and are folded onto each other in such a manner that the first material layer lies on the outside of the airbag and the second material layer lies on the inside of the airbag; wherein an energy absorption chamber is bounded by mutually opposite sections of the second material layer lying on the inside of the airbag, wherein at least two supporting chambers are bounded by mutually opposite sections of the first and second material layers, and wherein the mutually opposite sections of the first and second material layers are connected to each other in a region of an outer contour by a gas-permeable seam. - View Dependent Claims (6, 7, 8, 9, 10)
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Specification