Curtain airbag for vehicle

Patent metadata

Field	Value
Publication number	US-2017166158-A1
Application number	US-201615137094-A
Country	US
Kind code	A1
Filing date	Apr 25, 2016
Priority date	Dec 9, 2015
Publication date	Jun 15, 2017
Grant date	—

Abstract

A curtain airbag for a vehicle is provided. The curtain airbag includes a rear panel positioned toward a window of a vehicle, a front panel that longitudinally extends to have a length greater than a length of the rear panel, and the front panel is configured to interiorly fold and protrude a length the front panel exceeds the rear panel. An outer sewing line couples a boundary of the front panel and a boundary of the rear panel together while a protruded portion of the front panel folds in a backward orientation.

First claim

What is claimed is:

1 . A curtain airbag for a vehicle, comprising:
a rear panel positioned adjacent to a side window of the vehicle; a front panel positioned within an interior of the vehicle, the front panel configured to longitudinally extend to have a length greater than a length of the rear panel, and a middle portion of the front panel configured to interiorly fold and protrudes by a length that the front panel exceeds the rear panel while a boundary of the front panel is superimposed on a boundary of the rear panel; and an outer sewing line configured to couple the boundary of the front panel and the boundary of the rear panel together while a protruded portion of the front panel folds backward.

2 . The curtain airbag of claim 1 , wherein the protruded portion is positioned behind an airbag of a driver seat when the curtain airbag is inflated.

3 . The curtain airbag of claim 1 , wherein an upper end of the protruded portion is inclined forward at an angle about equal to an inclination angle of a steering wheel of the vehicle.

4 . The curtain airbag of claim 1 , further comprising:
a first sewing line positioned at a location spaced forward apart from the protruded portion by a predetermined distance that extends in vertically, and configured to restrict a forward expansion range of the protruded portion when the front panel and the rear panel are coupled together.

5 . The curtain airbag of claim 1 , further comprising:
a second sewing line positioned at a location separated backward apart from the protruded portion by a predetermined distance that extends vertically and configured to restrict a backward expansion range of the protruded portion when the front panel and the rear panel are coupled.

6 . The curtain airbag of claim 1 , wherein
the protruded portion includes a forward side surface and a backward side surface divided based on a folded portion of the front panel, and an inner tether that connects a base of the backward side surface to the rear panel positioned within the protruded portion, that allows the protruded portion to expand in a inclined backward orientation.

7 . The curtain airbag of claim 2 , wherein when the curtain airbag is inflated, the protruded portion is positioned behind of a driver airbag and supported by the driver airbag, via a support force.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Oh Chang Jin

Classifications

• B60R21/235

  characterised by their material · CPC title

• B60R21/2338

  Tethers · CPC title

• B60R21/232 Primary

  Curtain-type airbags deploying mainly in a vertical direction from their top edge · CPC title

• B60R21/23138

  specially adapted for side protection (B60R21/23184, B60R21/232 take precedence) · CPC title

• B60R2021/23382

  Internal tether means · CPC title