Roof airbag apparatus of vehicle
First Claim
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1. A roof airbag apparatus of a vehicle comprising:
- a housing mounted on a roof of the vehicle;
an outer cushion incorporated in the housing and inflated toward the front of a passenger shoulder position and downward;
an inner cushion incorporated in the housing, inflated toward the front of a passenger head position and downward, and positioned inside the outer cushion andan inflator configured to supply inflation gas to be supplied to the outer cushion and the inner cushion;
wherein while the outer cushion is inflated, a U-shaped cross section of the outer cushion opened toward a rear passenger from the front is extended vertically, the outer cushion is connected to receive inflation gas from the inflator, and the outer cushion includes a supply vent hole transferring the inflation gas to the inner cushion, and the inner cushion which is coupled to an inner portion of the outer cushion which is opened in a U shape includes a receiving vent hole for receiving the inflation gas from the outer cushion and a discharging vent hole for discharging the inflation gas to the outside; and
wherein the outer cushion includes a left wing portion forming an opened left piece of the U-shaped cross section, a right wing portion forming a right piece, and an outer front portion connecting front sides of the left wing portion and the right wing portion with each other, such that the left wing portion and the right wing portion support a passenger shoulder to move forward, andthe inner cushion includes an inner top portion connecting top portions of the left wing portion and the right wing portion horizontally, an inner bottom portion connecting bottom portions of the left wing portion and the right wing portion horizontally, an inner front portion connecting the inner top portion and the inner bottom portion vertically while being adjacent to the outer front portion, and an inner middle portion protruding toward the inner top portion from the inner bottom portion at the rear side of the inner front portion, such that the inner middle portion is configured to support a passenger head to move forward.
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Accused Products
Abstract
A relatively small capacity of airbag apparatus can be used by relatively shortening the distance between locations on which a passenger and the airbag apparatus are mounted to more effectively prevent a head and a neck of the passenger from being damaged through a discriminated supporting action of an upper body and a head part of the passenger while reducing a weight and a price of the airbag apparatus and the airbag apparatus can be easily standardized by configuration the airbag apparatus regardless of the shapes of a crash pad and a wind shield glass.
60 Citations
5 Claims
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1. A roof airbag apparatus of a vehicle comprising:
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a housing mounted on a roof of the vehicle; an outer cushion incorporated in the housing and inflated toward the front of a passenger shoulder position and downward; an inner cushion incorporated in the housing, inflated toward the front of a passenger head position and downward, and positioned inside the outer cushion and an inflator configured to supply inflation gas to be supplied to the outer cushion and the inner cushion; wherein while the outer cushion is inflated, a U-shaped cross section of the outer cushion opened toward a rear passenger from the front is extended vertically, the outer cushion is connected to receive inflation gas from the inflator, and the outer cushion includes a supply vent hole transferring the inflation gas to the inner cushion, and the inner cushion which is coupled to an inner portion of the outer cushion which is opened in a U shape includes a receiving vent hole for receiving the inflation gas from the outer cushion and a discharging vent hole for discharging the inflation gas to the outside; and wherein the outer cushion includes a left wing portion forming an opened left piece of the U-shaped cross section, a right wing portion forming a right piece, and an outer front portion connecting front sides of the left wing portion and the right wing portion with each other, such that the left wing portion and the right wing portion support a passenger shoulder to move forward, and the inner cushion includes an inner top portion connecting top portions of the left wing portion and the right wing portion horizontally, an inner bottom portion connecting bottom portions of the left wing portion and the right wing portion horizontally, an inner front portion connecting the inner top portion and the inner bottom portion vertically while being adjacent to the outer front portion, and an inner middle portion protruding toward the inner top portion from the inner bottom portion at the rear side of the inner front portion, such that the inner middle portion is configured to support a passenger head to move forward. - View Dependent Claims (2, 3, 4, 5)
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Specification