Air-bag for a vehicle
First Claim
1. An airbag for a vehicle, comprising:
- an air cushion;
an inflator for providing gas to the air cushion by generating it;
a first housing for accepting the inflator, having gas discharge holes for emitting gas in both sides opposite to each other;
a retainer for fixing the air cushion on its upper surface, including a coupling part having coupling holes corresponding to the gas discharge holes in both sides, and coupled to the first housing to move up and down;
a coupling means for coupling the coupling part to the first housing; and
a second housing for accepting the air cushion, coupled to an upper portion of the first housing, wherein the gas discharge holes are formed long in a upward and downward direction to make the retainer to move up and down so that some of the gas discharge holes are opened by movement of the coupling part when spreading the air cushion, and the coupling holes keep the gas discharge holes closed by means of the coupling part when not spreading the air cushion by being arranged in the lower portion of the coupling part.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is an airbag for a vehicle capable of minimizing gas leakage in an early stage through gas discharge holes in a housing when spreading an air cushion. In both sides opposite to a first housing, the gas discharge holes are formed for emitting gas. A retainer, on whose upper surface is fixed the air cushion, and in whose both sides are formed a coupling part having coupling holes corresponding to the gas discharge holes, is provided. This coupling part is coupled to the first housing through the coupling means. The gas discharge holes are made lengthwise to make it possible to move the retainer up and down. As a result, when spreading the air cushion, some of the holes are opened by movement of the coupling part. Besides, the coupling holes are formed in the lower side of the coupling part, so when not spreading the air cushion, the gas discharge holes are kept closed by means of the coupling part. In accordance with this structure, it is possible to adopt a smaller capacity of the inflator as it can efficiently control the gas emitted to the outside through the gas discharge holes in the early stage of spreading the air cushion.
9 Citations
3 Claims
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1. An airbag for a vehicle, comprising:
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an air cushion;
an inflator for providing gas to the air cushion by generating it;
a first housing for accepting the inflator, having gas discharge holes for emitting gas in both sides opposite to each other;
a retainer for fixing the air cushion on its upper surface, including a coupling part having coupling holes corresponding to the gas discharge holes in both sides, and coupled to the first housing to move up and down;
a coupling means for coupling the coupling part to the first housing; and
a second housing for accepting the air cushion, coupled to an upper portion of the first housing, wherein the gas discharge holes are formed long in a upward and downward direction to make the retainer to move up and down so that some of the gas discharge holes are opened by movement of the coupling part when spreading the air cushion, and the coupling holes keep the gas discharge holes closed by means of the coupling part when not spreading the air cushion by being arranged in the lower portion of the coupling part. - View Dependent Claims (2, 3)
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Specification