Curtain airbag module

Patent metadata

Field	Value
Publication number	US-9266492-B2
Application number	US-201314381124-A
Country	US
Kind code	B2
Filing date	Feb 19, 2013
Priority date	Mar 9, 2012
Publication date	Feb 23, 2016
Grant date	Feb 23, 2016

Abstract

Disclosed is a curtain airbag module including a curtain airbag cushion, an inflator of supplying and inflating gas into the curtain airbag cushion, and a lamp bracket fixed on a vehicle panel to support the curtain airbag cushion which is integrally provided with a lamp pattern to deploy the curtain airbag cushion into a vehicle without deploying the curtain airbag cushion into a pillar trim of a vehicle in the deployment of the curtain airbag cushion by driving the inflator. The lamp pattern wraps up at least a portion of the folded curtain airbag cushion. The lamp pattern initially wrapping up the folded curtain airbag cushion guides the curtain airbag cushion to the interior of the vehicle when the curtain airbag cushion is deployed, thereby preventing the curtain airbag cushion from being inserted into the pillar trim, so that the curtain airbag cushion is stably deployed.

First claim

The invention claimed is:

1. A curtain airbag module comprising:
a curtain airbag cushion;
an inflator for supplying gas into the curtain airbag cushion to inflate the curtain airbag cushion; and
a ramp bracket fixedly mounted on a vehicle panel to support the curtain airbag cushion,
wherein the curtain airbag cushion integrally includes a ramp pattern to guide a deployment direction of the curtain airbag cushion to prevent the curtain airbag cushion from being deployed into a pillar trim of a vehicle when the curtain airbag cushion is deployed by driving the inflator, the ramp pattern wrapping up at least a portion of the curtain airbag cushion in a folded state, and
wherein the ramp pattern is supported by the ramp bracket in a vertical direction when the curtain airbag cushion is in an expanded state such that the ramp pattern directs the curtain airbag cushion away from the vehicle panel in a horizontal direction;
wherein the ramp bracket includes a horizontally extending portion and upon deployment of the curtain airbag cushion the ramp pattern includes a first end mounted to the vehicle panel horizontally above the ramp bracket and a second end horizontally beyond a distal end of the horizontally extending portion and vertically below the horizontally extending portion.

2. The curtain airbag module of claim 1 , wherein the ramp pattern includes a fabric material identical to a fabric material of the curtain airbag cushion.

3. The curtain airbag module of claim 1 , wherein the ramp pattern includes a fabric material having strength superior to a fabric material of the curtain airbag cushion.

4. The curtain airbag module of claim 1 , wherein, when the curtain airbag cushion is deployed, the ramp pattern is positioned between the curtain airbag cushion and the pillar trim of the vehicle due to a deployment pressure of the curtain airbag cushion to cover an upper portion of the pillar trim of the vehicle, thereby guiding deployment of the curtain airbag cushion into an interior space of the vehicle.

5. A curtain airbag module comprising:
a curtain airbag cushion;
an inflator for supplying gas into the curtain airbag cushion to inflate the curtain airbag cushion; and
a ramp bracket fixedly mounted on a vehicle panel to support the curtain airbag cushion,
wherein the curtain airbag cushion integrally includes a ramp pattern to guide a deployment direction of the curtain airbag cushion to prevent the curtain airbag cushion from being deployed into a pillar trim of a vehicle when the curtain airbag cushion is deployed by driving the inflator, the ramp pattern woven with the curtain airbag cushion, the ramp pattern wrapping up at least a portion of the curtain airbag cushion in a folded state,
wherein the ramp pattern is supported by the ramp bracket in a vertical direction when the curtain airbag is in an expanded state such that the ramp pattern directs the curtain airbag cushion away from the vehicle panel in a horizontal direction;
wherein the ramp bracket includes a horizontally extending portion, and wherein upon deployment of the curtain airbag cushion the ramp pattern includes a first end mounted to the vehicle panel horizontal above the ramp bracket and a second end horizontally beyond a distal end of the horizontally extending portion and vertically below the horizontally extending portion.

6. The curtain airbag module of claim 5 , wherein the ramp pattern includes a fabric material identical to a fabric material of the curtain airbag cushion.

7. The curtain airbag module of claim 5 , wherein the ramp pattern includes a fabric material having strength superior to a fabric material of the curtain airbag cushion.

8. The curtain airbag module of claim 5 , wherein, when the curtain airbag cushion is deployed, the ramp pattern is positioned between the curtain airbag cushion and the pillar trim of the vehicle due to a deployment pressure of the curtain airbag cushion to cover an upper portion of the pillar trim of the vehicle, thereby guiding deployment of the curtain airbag cushion into an interior space of the vehicle.

Assignees

• Autoliv Dev

Inventors

• Byun Jong Ki

Classifications

• B60R2021/0006

  Lateral collision · CPC title

• B60R21/232 Primary

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

• B60R2021/161

  characterised by additional means for controlling deployment trajectory · CPC title

• B60R21/213 Primary

  in vehicle roof frames or pillars · CPC title

• B60R21/201 Primary

  Packaging straps or envelopes for inflatable members · CPC title