Double-sewn airbag mounting assemblies
First Claim
1. An inflatable curtain airbag assembly, comprising:
- an inflatable curtain airbag having a non-inflatable area;
a mounting member configured to couple the inflatable curtain airbag to a vehicle structure; and
,a connecting member configured to interconnect the mounting member and the inflatable curtain airbag,wherein the connecting member comprises a flexible piece of fabric that is attached to the inflatable curtain airbag at the non-inflatable area via both shear-configuration stitching and peel-configuration stitching such that the inflatable curtain airbag can be packaged into a b-roll configuration, and,wherein upon deployment of the inflatable curtain airbag, if tension on the peel-configuration stitching is lower than a predetermined magnitude, the connecting member will remain in a first configuration, and if tension on the peel-configuration stitching is greater than the predetermined magnitude, the peel-configuration stitching will rupture and the connecting member will adopt a second configuration.
1 Assignment
0 Petitions
Accused Products
Abstract
Mounting assemblies can be used to attach an inflatable curtain airbag to a vehicle structure. Mounting assemblies can include a mounting member, a connecting member, and an optional wrapper. The connecting member is attached to the mounting member and the airbag via stitching, which can be categorized according to the primary direction of stress that may be placed on the stitching during airbag deployment. Stitching in shear is stronger than otherwise identical stitching in peel; however, a preferred method of packaging a curtain airbag results in a b-rolled airbag that can not be attached to the connecting member with shear stitching alone. Peel stitching alone may not be strong enough to retain an occupant within the vehicle during a rollover event. As such, a combination of a folded connecting member, shear stitching, and peel stitching allows a b-roll airbag to meet occupant ejection mitigation requirements.
111 Citations
16 Claims
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1. An inflatable curtain airbag assembly, comprising:
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an inflatable curtain airbag having a non-inflatable area; a mounting member configured to couple the inflatable curtain airbag to a vehicle structure; and
,a connecting member configured to interconnect the mounting member and the inflatable curtain airbag, wherein the connecting member comprises a flexible piece of fabric that is attached to the inflatable curtain airbag at the non-inflatable area via both shear-configuration stitching and peel-configuration stitching such that the inflatable curtain airbag can be packaged into a b-roll configuration, and, wherein upon deployment of the inflatable curtain airbag, if tension on the peel-configuration stitching is lower than a predetermined magnitude, the connecting member will remain in a first configuration, and if tension on the peel-configuration stitching is greater than the predetermined magnitude, the peel-configuration stitching will rupture and the connecting member will adopt a second configuration. - View Dependent Claims (2, 3, 4)
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5. An inflatable curtain airbag assembly, comprising:
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an inflatable curtain airbag having a non-inflatable area that is located on a top portion of the inflatable curtain airbag adjacent to a top edge; a mounting member configured to couple the inflatable curtain airbag to a vehicle structure; and
,a connecting member configured to interconnect the mounting member and the inflatable curtain airbag, wherein the connecting member comprises a flexible piece of fabric that is configured to be attached to the inflatable curtain airbag at the non-inflatable portion via both a first shear-configuration stitching and peel-configuration stitching, and wherein the connecting member comprises a fold, and wherein the peel-configuration stitching retains the fold in the connecting member such that the connecting member comprises a folded configuration. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification