Airbag device for vehicle
First Claim
1. An airbag device for a vehicle, comprising:
- a main vent hole configured to be disposed in an airbag cushion and emit expansion gas therein;
a cover configured to be disposed on an outer side of the airbag cushion, to be switched between an opened state of the main vent hole while being spaced apart from the main vent hole and a closed state of the main vent hole while adhering to the main vent hole, by a tension force applied thereto, and provided with an auxiliary vent hole through which the expansion gas inside the airbag cushion is emitted;
a tether having a first end connected to the cover through the main vent hole and a second end fixed inside the airbag cushion to provide the tension force to the cover; and
a tether guide disposed on an inner side of the airbag cushion to support the tether and make the tether pass therethrough while being slid on the inner side of the airbag cushion; and
a sealing member configured to be provided between the main vent hole and the tether guide to support the tether and make the tether passing through the tether guide pass therethrough while being slid on the inner side of the airbag cushion,wherein the auxiliary vent hole is formed to be disposed inside the main vent hole in the closed state in which the cover closes the main vent hole.
1 Assignment
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Accused Products
Abstract
An airbag device for a vehicle may include a main vent hole disposed in an airbag cushion and emit expansion gas therein, a cover disposed on an outer side of the airbag cushion, to be switched between an opened state and a closed state, by a tension force applied thereto, and provided with an auxiliary vent hole through which the expansion gas inside the airbag cushion may be emitted, a tether having a first one end connected to the cover through the main vent hole and a second end fixed inside the airbag cushion to provide the tension force to the cover, and a tether guide disposed on an inner side of the airbag cushion to support the tether and make the tether pass therethrough while being slid on the inner side of the airbag cushion.
27 Citations
12 Claims
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1. An airbag device for a vehicle, comprising:
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a main vent hole configured to be disposed in an airbag cushion and emit expansion gas therein; a cover configured to be disposed on an outer side of the airbag cushion, to be switched between an opened state of the main vent hole while being spaced apart from the main vent hole and a closed state of the main vent hole while adhering to the main vent hole, by a tension force applied thereto, and provided with an auxiliary vent hole through which the expansion gas inside the airbag cushion is emitted; a tether having a first end connected to the cover through the main vent hole and a second end fixed inside the airbag cushion to provide the tension force to the cover; and a tether guide disposed on an inner side of the airbag cushion to support the tether and make the tether pass therethrough while being slid on the inner side of the airbag cushion; and a sealing member configured to be provided between the main vent hole and the tether guide to support the tether and make the tether passing through the tether guide pass therethrough while being slid on the inner side of the airbag cushion, wherein the auxiliary vent hole is formed to be disposed inside the main vent hole in the closed state in which the cover closes the main vent hole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An airbag device for a vehicle, comprising:
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a main vent hole configured to be disposed in an airbag cushion and emit expansion gas therein; a cover configured to be disposed on an outer side of the airbag cushion, to be switched between an opened state of the main vent hole while being spaced apart from the main vent hole and a closed state of the main vent hole while adhering to the main vent hole, by a tension force applied thereto, and provided with an auxiliary vent hole through which the expansion gas inside the airbag cushion is emitted; a tether having a first end connected to the cover through the main vent hole and a second end fixed inside the airbag cushion to provide the tension force to the cover; and a tether guide disposed on an inner side of the airbag cushion to support the tether and make the tether pass therethrough while being slid on the inner side of the airbag cushion; and a sealing member configured to be provided between the main vent hole and the tether guide to support the tether and make the tether passing through the tether guide pass therethrough while being slid on the inner side of the airbag cushion, wherein the cover is partially bonded to the airbag cushion to enclose a portion of a circumference of the main vent hole and a rest portion thereof is opened, such that the cover is configured to form an outlet having a pocket shape to make the expansion gas emitted through the main vent hole be emitted into the atmosphere, along with the outer side of the airbag cushion, wherein the cover is provided with a space in which a main part having a quadrangular shape is formed as a size covering the main vent hole and a side part is extendedly formed at a front end and both side ends of the main part, the main part being spaced apart from a surface of the airbag cushion by unfolding the side part, wherein a front end and both side ends of the side part extending from the main part are directly bonded to the airbag cushion, enclosing the portion of the circumference of the main vent hole, an edge portion between the front end and both side ends of the main part and an edge portion between the front end and both side ends of the side part are formed in a curved shape having a predetermined radius, and a back end of the side part is opened, spaced apart from the airbag cushion in a free state, and wherein a back end of the main part more extends backward than the back end of the side part in the closed state in which the cover closes the main vent hole.
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Specification