# US 2014/0151983 A1 · Airbag cover door having a variable length hinge

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- Number: US 2014/0151983 A1
- Document ID: US20140151983A1
- Status: Published application
- Kind: A1
- Application number: 13/918,204
- Filed: 2013-06-14
- Published: 2014-06-05
- Earliest claimed: 2012-06-15
- Assignees: Faurecia Interieur Industrie
- Inventors: Thierry Schupbach; Franck Edeline
- Web page: https://patentgrep.com/patent/US20140151983A1

## CPC

- B60R 21/215: characterised by the covers for the inflatable member {(B60R21/2176 takes precedence)}
- B60R 21/2155: with complex motion of the cover; Retraction under the lining during opening
- B60R 2021/21537: {characterised by hinges}
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A cover door that includes a frame having a wall and an upper aperture extending at the end of the wall, and a lid covering at least one portion of the upper aperture and movable relatively to the frame so as to clear the upper aperture. The lid is attached to the wall through a hinge-forming area. The hinge-forming area has at least one central hinge connecting a central portion of the lid to the frame, and at least one side hinge connecting a side portion of the lid to the frame. The side hinge has a greater length than the length of the central hinge.

## Claims

### Claim 1

A cover door for an airbag module, comprising a frame having at least one wall defining a deployment trajectory of the airbag and an upper aperture extending at the end of said wall, and a lid covering at least one portion of the upper aperture and movable relatively to the frame so as to clear the upper aperture and allow deployment of the airbag along the deployment trajectory through the upper aperture, the lid being attached to the wall through a hinge-forming area, the hinge-forming area comprising at least one central hinge connecting a central portion of the lid to the frame, and at least one side hinge connecting a side portion of the lid to the frame, the side hinge having a greater length than the length of the central hinge, characterized in that the central hinge and the side hinge each comprise a frame-joining portion, a deployment portion and a lid-joining portion, the length of the frame-joining portion of the side hinge being greater than the length of the frame-joining portion of the central hinge.

### Claim 2 (depends on 1)

The cover door according to claim 1, characterized in that the frame, the lid and the hinge-forming area are made in one single piece.

### Claim 3 (depends on 1)

The cover door according to claim 1, characterized in that the frame comprises a portion for attachment to a support, said attachment portion extending around the upper aperture substantially in the plane of said upper aperture and being attached to the wall.

### Claim 4 (depends on 3)

The cover door according to claim 3, characterized in that the central hinge, the wall and the attachment portion join up in a junction area substantially extending in the plane of the upper aperture.

### Claim 5 (depends on 3)

The cover door according to claim 3, characterized in that the side hinge, the wall and the attachment portion join up in a junction area substantially extending in a plane shifted relatively to the plane of the upper aperture, so as to increase the length of the side hinge.

### Claim 6 (depends on 5)

The cover door according to claim 5, characterized in that the attachment portion comprises a discontinuity facing the side hinge, said discontinuity substantially extending from the plane of the upper aperture to the area for joining the side hinge to the wall and to the attachment portion, said discontinuity being connected to said junction area.

### Claim 7 (depends on 1)

The cover door according to claim 1, characterized in that the deployment portions of the central hinge and of the side hinge each have a substantially U-shaped section.

### Claim 8 (depends on 1)

The cover door according to claim 1, characterized in that the central hinge and the side hinge are separated from each other by a gap, the lid not being connected to the wall facing this gap.

### Claim 9 (depends on 8)

The cover door according to claim 8, characterized in that the wall comprises a thinned area extending facing the gap as far as in the plane of the upper aperture.

### Claim 10 (depends on 1)

The cover door according to claim 1, characterized in that the lid is connected to the frame through at least one central hinge and through two side hinges, said side hinges being positioned on either side of said central hinge