Patent ID: 8905432
Filing Date: 2014-12-09
Classification: B60R

Abstract:
1. A curtain airbag configured to be received above a side surface of a vehicle interior so as to be inflated and deployed along the side surface, comprising: a main chamber forming a bag-shaped inflation region configured to be inflated with gas flowing therein and to be inflated first; a delay chamber configured to be inflated with gas flowing from the main chamber; a linear seam portion in which front and back base fabrics of the curtain airbag are linearly joined so as to extend from an upper edge of the curtain airbag to a near side of a lower edge of the curtain airbag, the linear seam partitioning the main chamber from the delay chamber; a planar seam portion formed at a lower end of the linear seam portion and defining a non-inflation region in a predetermined range of the curtain airbag; and a gas inflow channel formed by the front and back base fabrics of the curtain airbag, the gas inflow channel being provided between the planar seam portion and the lower edge of the curtain airbag so as to allow gas to flow from the main chamber into the delay chamber, wherein the front and back base fabrics of the gas inflow channel sag upon completion of inflation and deployment of the curtain airbag and form a wrinkled portion that blocks or narrows the gas inflow channel.