Patent ID: 11951928
Assignee: HYUNDAI MOBIS CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A roof airbag for a vehicle, the roof airbag comprising:
an airbag cushion located at a roof panel of the vehicle and configured to be unfolded from a first side portion to a second side portion of the roof panel during an operation of the airbag cushion;
a plurality of first seam portions extended in one direction that is intersected with an unfolded direction of the airbag cushion and joining upper and lower surfaces of the airbag cushion to each other;
a plurality of second seam portions separated from the plurality of first seam portions in the unfolded direction of the airbag cushion, and allowing the upper and lower surfaces of the airbag cushion to be in contact with each other, and being extended in the direction intersected with the unfolded direction of the airbag cushion with lengths relatively shorter than lengths of the plurality of first seam portions; and
an inflator coupled to the first side portion of the roof panel, and connected to the airbag cushion, and configured to inject gas into the airbag cushion so as to allow the airbag cushion to be unfolded from the first side portion to the second side portion of the roof panel,
wherein each of the plurality of first seam portions has a first end and a second end, the first end and the second end being connected by a straight line,
wherein each of the plurality of second seam portions has a first end and a second end, the first end and the second end being connected by a straight line,
wherein the plurality of first seam portions are arranged in parallel with the plurality of second seam portions in the unfolded direction, with the plurality of second seam portions arranged between the plurality of first seam portions.