Airbag and airbag apparatus
AssigneeTakata Corporation
InventorKazuhiro Abe
Life of this patent
Estimating the term…
Abstract
An airbag has a first inner panel and a second inner panel arranged substantially in a concentric relation with a front panel and a rear panel in an interior of an airbag, and outer peripheral edge portions are stitched to each other by a high-strength seam. A center portion of the first inner panel is stitched to a center portion of the front panel by a seam. A center portion of the second inner panel is connected to a center portion of the rear panel by a retaining ring. The second inner panel is formed with a communication port between a first chamber and a second chamber. Midsections of the inner panels between the outer peripheral edge portions and the center portions are connected by a tear seam. The tear seam is adapted to be broken when the pressure in the first chamber reaches a predetermined pressure.
Claims12
An airbag capable of being inflated by gas from a gas generator, the airbag comprising:
- a front panel arranged on a passenger side;
- a rear panel arranged on an opposite side from the passenger side, the front panel and the rear panel being connected to each other along peripheral edge portions thereof;
- a port for the gas generator provided at a center of the rear panel;
- an inner panel for dividing an interior of the airbag into a first chamber at a center and a second chamber which surrounds the first chamber;
- and
- low-strength connecting means for connecting a part of the inner panel to at least one of the inner panel, the front panel, and the rear panel, said low-strength connecting means maintaining the connection so as to maintain capacity of the first chamber at a relatively small first capacity until a gas pressure in the first chamber reaches a predetermined pressure, and releasing the connection when the gas pressure in the first chamber exceeds a predetermined pressure so as to make the capacity of the first chamber a second capacity larger than the first capacity.
Dependencies are inferred from the claim text.