Device for protecting an inflatable element

• US 7,748,739 B2
• Filed: 06/27/2006
• Issued: 07/06/2010
• Est. Priority Date: 06/27/2006
• Status: Active Grant

• Current Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Original Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Inventors: Brinker, Kristy
• Primary Examiner(s): To; Toan C
• Application Number:
  US11/475,795
• Publication Number:
  US 20070296191A1
• Time in Patent Office: 1,470 Days
• Field of Search: 280/728.2, 280/729, 280/736, 280/739, 280/743.1, 280/743.2, 280/742
• US Class Current: 280/742
• CPC Class Codes: B60R 2021/23123 Heat protection panels
• CPC Class Codes: B60R 21/231 characterised by their shape, construction or spatial configuration

Abstract

Various embodiments of the invention provide a device for protecting the cushion material of an inflatable element from inflator gases and particulate matter. The device along with an inflator and an airbag may be placed in a housing. The device includes a first strip and a second strip. Each of the first strip and second strip includes at least one opening. Each of the openings are surrounded by a plurality of holes. The second strip may be placed above the first strip in a suitable position.

Claims

1. A device for protecting an inflatable element, the device comprising:

a. a first strip, the first strip comprising at least one opening, the one opening being surrounded by a plurality of holes; and

b. a second strip, the second strip comprising at least one opening, the one opening being surrounded by a plurality of holes, the second strip being placed at a predetermined angle to and above the first strip; and

c. the first strip is folded into an inner loop and the inner loop is held together by one or more breakable attachments means, the second strip is folded into an outer loop and the outer loop is held together by one or more breakable attachment means, so that the breakable attachment means break and the inner loop and the outer loop unfold upon activation of the inflator.

2. The device according to claim 1, wherein the predetermined angle is such that the second strip is perpendicular to the first strip.

3. The device according to claim 1, wherein the second strip is placed parallel to the first strip.

4. The device according to claim 1, wherein an inflator is inserted in the first strip and the second strip through at least one opening in the first strip and at least one opening in the second strip.

5. The device according to claim 4, wherein the inflatable element, the inflator and the device are attached through an attachable means inserted through the plurality of holes in the first strip and the plurality of holes in the second strip.

6. The device according to claim 1, wherein the attachment means is one or more stitches.

7. The device according to claim 1, wherein the inner loop guides inflator gases from the inflator into the inflatable element.

8. The device according to claim 1, wherein the inner loop and the outer loop guide inflator gases from the inflator into the inflatable element.

9. The device according to claim 1, wherein the outer loop unfolds to protect a first portion of the inflatable element from inflator gases, the unfolding taking place once the inflator is activated.

10. The device according to claim 1, wherein the inner loop and the outer loop unfold to protect a second portion of the inflatable element from inflator gases, the unfolding taking place once the inflator is activated.

11. The device according to claim 1, wherein the first strip and the second strip are made of a heat resistant material.

12. An airbag module comprising:

a. an airbag;

b. an inflator, the inflator when activated inflating the airbag; and

c. a device for protecting the airbag, the device comprising;

i. a first strip, the first strip comprising at least one opening, the one opening being surrounded by a plurality of holes;

ii. a second strip, the second strip comprising at least one opening, the one opening being surrounded by a plurality of holes, the second strip being placed perpendicular to and above the first strip; and

iii. the first strip is folded into an inner loop and the inner loop is held together by one or more breakable attachment means, the second strip is folded into an outer loop and the outer loop is held together by one or more breakable attachment means, so that the breakable attachment means break and the inner loop and the outer loop unfold upon activation of the inflator.

13. The airbag module according to claim 12 further comprising a housing, wherein the airbag, the inflator and the device are inserted into the housing.