Patent ID: 7976063
Filing Date: 2011-07-12
Classification: B60R

Abstract:
1. An airbag configured to be inflated and deployed by gas supplied therein comprising: an inner panel to be arranged in the interior of the airbag, the inner panel including a center seamed portion to be connected to an inner surface of the airbag with respect to the direction of thickness and a plurality of outer peripheral seamed portions to be connected to an inner surface of the airbag apart from the portion where the center seamed portion is connected, wherein the outline of the inner panel includes straight line segments that generally extend between the outer peripheral seamed portions when the inner panel is deployed into a plane is formed into a shape smaller than an arcuate shape which constitutes part of a circle passing through all the outer peripheral seamed portions and larger than an inverted arcuate shape formed by inverting the arcuate shape with respect to a straight line connecting the outer peripheral seamed portions, wherein a communicating port from which gas is supplied to the airbag is formed by the outline of the inner panel including the straight line segments generally extending between the outer peripheral seamed portions, wherein the inner panel constitutes an inner chamber which inflates near a center portion of the airbag first in the initial stage of inflation of the airbag and then supplies gas from the communicating port to an outer periphery of the airbag.