Abstract: A roof airbag apparatus including a rear cushion unit deployed from a rear part toward a front part of a roof when gas is supplied, and covering a rear region of the roof; a front cushion unit coupled to a front end of the rear cushion unit to communicate therewith, deployed forward when the rear cushion unit is deployed, and covering a front region of the roof; a pair of guide bars guiding left and right ends of the rear cushion unit and the front cushion unit at left and right sides of the roof; and a pair of connection members coupled to front ends of the guide bars in a state in which the pair of connection members are fixed to the front part of the roof, and decoupled from the guide bars and deploying the front cushion unit downward when a front collision sensing signal is transferred.

Abstract: A roof airbag apparatus including a rear cushion unit deployed from a rear part toward a front part of a roof when gas is supplied, and covering a rear region of the roof; a front cushion unit coupled to a front end of the rear cushion unit to communicate therewith, deployed forward when the rear cushion unit is deployed, and covering a front region of the roof; a pair of guide bars guiding left and right ends of the rear cushion unit and the front cushion unit at left and right sides of the roof; and a pair of connection members coupled to front ends of the guide bars in a state in which the pair of connection members are fixed to the front part of the roof, and decoupled from the guide bars and deploying the front cushion unit downward when a front collision sensing signal is transferred.

Abstract: According to an airbag apparatus according to exemplary embodiments of the present invention, at the time of an accident of a vehicle, a sub-cushion protrudes toward a front side of a main cushion to prevent a head of an occupant from sliding toward a lateral side, thereby preventing the head of the occupant, which is in contact with the main cushion, from sliding toward a lateral side even though the vehicle collides with an object obliquely with respect to a direction in which the vehicle travels.

Abstract: According to an airbag apparatus according to exemplary embodiments of the present invention, at the time of an accident of a vehicle, a sub-cushion protrudes toward a front side of a main cushion to prevent a head of an occupant from sliding toward a lateral side, thereby preventing the head of the occupant, which is in contact with the main cushion, from sliding toward a lateral side even though the vehicle collides with an object obliquely with respect to a direction in which the vehicle travels.

Abstract: An airbag module for a vehicle according to the present invention includes: an inflator; and an airbag cushion which is deployed by high pressure gas discharged from the inflator, in which a dead zone, which allows the high pressure gas discharged from the inflator to branch off and flow through at least two branch flow paths, is formed in the airbag cushion, and a variable tether, which guides the high pressure gas passing through the at least two branch flow paths to the upper side of the airbag cushion and has a plurality of vent holes that is opened so that upper and lower portions of the airbag cushion communicate with each other when internal pressure of the airbag cushion exceeds a preset value, is installed in the airbag cushion, such that the high pressure gas is quickly and uniformly distributed and supplied into the airbag cushion.

Abstract: An airbag module for a vehicle according to the present invention includes: an inflator; and an airbag cushion which is deployed by high pressure gas discharged from the inflator, in which a dead zone, which allows the high pressure gas discharged from the inflator to branch off and flow through at least two branch flow paths, is formed in the airbag cushion, and a variable tether, which guides the high pressure gas passing through the at least two branch flow paths to the upper side of the airbag cushion and has a plurality of vent holes that is opened so that upper and lower portions of the airbag cushion communicate with each other when internal pressure of the airbag cushion exceeds a preset value, is installed in the airbag cushion, such that the high pressure gas is quickly and uniformly distributed and supplied into the airbag cushion.

Abstract: In accordance with a knee airbag module for a vehicle according to the present invention, an airbag cushion is folded in half in the front and rear directions, folded in the left and right directions, and is then contained. Thus, when the airbag cushion is supplied with a high pressure gas, it is expanded and unfolded in the left and right directions and is then expanded and unfolded in the front and rear directions. Therefore, the airbag cushion is not unfolded between the knees of a passenger, but is unfolded at the front of the knees of the passenger. Accordingly, the unfolding performance and stability can be improved.