Side impact protection device for an occupant of a vehicle
First Claim
1. A side impact protection device for an occupant of a vehicle, comprising:
- an air bag which is divided into two chambers situated above one another,an interior partition by which the air bag is divided into said two chambers, a lower of said chambers communicating with a gas generator, at least a portion of said partition being approximately horizontally aligned in an inflated condition,said partition defining a primary opening communicating said two chambers, said primary opening being situated outside of a radiation area of the gas generator,at least one of said air bag and said partition defining a first secondary opening communicating said two chambers, said first secondary opening being spaced from said primary opening and acting as a pressure relief valve during inflation of the lower chamber of the air bag,said partition, at an end thereof opposite the primary opening, ending in front of a circumferential seam of the air bag to define a second secondary opening.
1 Assignment
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Accused Products
Abstract
A side impact protection device for an occupant of a vehicle includes an air bag which is divided by an interior partition into two chambers situated above one another. The lower chamber interacts with a gas generator. A primary opening having a relatively large cross-section is formed at the partition. So that an optimal functioning of both chambers of the air bag is always ensured during the inflation, at least one other opening with a relatively small cross-section is provided on the partition next to the primary opening situated outside the radiation area of the gas generator. The other opening extends at a distance to the primary opening and acts as a pressure relief valve when the lower chamber of the air bag is inflated.
20 Citations
21 Claims
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1. A side impact protection device for an occupant of a vehicle, comprising:
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an air bag which is divided into two chambers situated above one another, an interior partition by which the air bag is divided into said two chambers, a lower of said chambers communicating with a gas generator, at least a portion of said partition being approximately horizontally aligned in an inflated condition, said partition defining a primary opening communicating said two chambers, said primary opening being situated outside of a radiation area of the gas generator, at least one of said air bag and said partition defining a first secondary opening communicating said two chambers, said first secondary opening being spaced from said primary opening and acting as a pressure relief valve during inflation of the lower chamber of the air bag, said partition, at an end thereof opposite the primary opening, ending in front of a circumferential seam of the air bag to define a second secondary opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of manufacturing an air bag for a side impact protection device for an occupant of a vehicle, comprising the steps of:
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attaching first and second layers together at peripheral edges to define an interior space therebetween; attaching an interior partition to each of said layers to divide said interior space into an upper chamber and a lower chamber, said interior partition defining a primary opening communicating said upper and lower chambers, at least one of said air bag and said partition defining a first secondary opening communicating said upper and lower chambers, said first secondary opening being smaller than said primary opening, being spaced from said primary opening, and acting as a pressure relief valve during inflation of the lower chamber of the air bag, said partition, at an end thereof opposite the primary opening, ending in front of a circumferential seam of the air bag to define a second secondary opening. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification