Airbag arrangement

• US 6,773,026 B2
• Filed: 08/07/2002
• Issued: 08/10/2004
• Est. Priority Date: 08/07/2001
• Status: Expired due to Fees

• Current Assignee: Autoliv AB (Autoliv Incorporated)
• Original Assignee: Autoliv AB (Autoliv Incorporated)
• Inventors: Meyer, Bernhard
• Primary Examiner(s): English, Peter C.
• Application Number:
  US10/213,432
• Publication Number:
  US 20030030256A1
• Time in Patent Office: 734 Days
• Field of Search: 280/730.2, 280/743.1, 280/743.2, 280/729, 280/730.1
• US Class Current: 280/729
• CPC Class Codes: B60R 2021/23161 specially adapted for protecting at least two passengers, e.g. preventing them from hitting each other
• CPC Class Codes: B60R 2021/23386 External tether means
• CPC Class Codes: B60R 21/231 characterised by their shape, construction or spatial configuration
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge
• CPC Class Codes: B60R 21/2338 Tethers
• CPC Class Codes: B60R 22/195 with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel typeelectrical circuits for triggering safety arrangements B60R21/01

Abstract

An airbag arrangement for a motor vehicle includes an inflatable element having two opposed side faces. Mounting straps extend from each side face to mounting points provided in the roof of the motor vehicle. The mounting points are spaced apart transversely. When inflated the inflatable element extends down from the roof of the motor vehicle to be located between heads of the occupants of two adjacent seats. Part of the inflatable element between the straps is in contact with the roof and the straps associated with each side face are tensioned so that the airbag is held firmly in position.

Claims

1. An airbag arrangement in a motor vehicle, the airbag arrangement comprising an inflatable element having two opposed side faces, each side face being provided with mounting means at least at points spaced apart axially of the vehicle along the inflatable element, and which extend to mounting points in the roof of the motor vehicle between two adjacent seats of the motor vehicle, the mounting points being transversely spaced apart, the arrangement being such that, when inflated, the inflatable element extends down from the roof of the motor vehicle with part of the inflatable element between the mounting points in contact with part of the roof of the vehicle, the inflatable element contacting the roof so that the mounting means associated with each side face are tensioned.

2. The arrangement of claim 1, wherein the mounting means comprise at least two elongate straps, each strap having two opposed ends, each end being mounted on a respective mounting point in the roof of the vehicle, a central part of each strap being secured to part of the inflatable element.

3. The arrangement of claim 2, wherein the straps extend across the top of the inflatable element when the inflatable element is in an inflated condition.

4. The arrangement of claim 2, wherein the straps extend around the bottom of the inflatable element when the inflatable element is in an inflated condition.

5. The arrangement of claim 4, wherein each end of each strap is provided with a mounting eye and each mounting point in the roof of the vehicle comprises a mounting lug on which a respective mounting eye is secured.

6. The arrangement of claim 1, wherein the opposed side faces of the inflatable element are interconnected by means comprising at least one join line which defines a plurality of regions in the form of a plurality of cells.

7. An arrangement according to claim 1, wherein the opposed side faces are interconnected by means comprising at least one elongate tether extending between the two opposed side faces.

8. An arrangement according to claim 1, wherein the inflatable element is formed from a rectangular sheet of fabric folded about an axis to form two fabric halves, the two fabric halves being secured together about their periphery.

9. The arrangement of claim 8, wherein the halves are secured together by stitching.

10. The arrangement of claim 8, wherein the halves are secured together by welding.

11. The arrangement of claim 8, wherein the halves are secured together using adhesive.