Curtain airbag
First Claim
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, whereinthe 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.
1 Assignment
0 Petitions
Accused Products
Abstract
A curtain airbag capable of preventing a partial decrease in internal pressure to improve ejection prevention performance. The airbag includes: a main chamber, which inflates first; a delay chamber that is inflated with gas from the main chamber; a linear seam portion where front and back base fabrics are joined to partition the main chamber from the delay chamber; a planar seam portion formed at a lower end of the linear seam portion to define a non-inflation region in a range of the front and back base fabrics; and a gas inflow channel provided between the planar seam portion and the lower edge of the airbag to allow gas to flow from the main chamber into the delay chamber. The front and back base fabrics of the gas inflow channel sag upon completion of inflation and deployment to form a wrinkled portion that blocks or narrows the gas inflow channel.
-
Citations
12 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. 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 bonded 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 extend along the lower edge of the curtain airbag and to allow gas to flow from the main chamber into the delay chamber, wherein the front and back base fabrics forming the gas inflow channel are folded to form a wrinkled portion upon completion of inflation and deployment of the curtain airbag. - View Dependent Claims (8, 9, 10, 11, 12)
-
Specification