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Air bag with gas blocking sealant at sewn seams

A technology of airbags and sealants, which is applied in vehicle safety arrangements, pedestrian/passenger safety arrangements, vehicle components, etc., can solve expensive and difficult-to-implement problems, and achieve the effect of preventing gas leakage

Inactive Publication Date: 2008-01-16
MILLIKEN & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although jacquard weaving can provide an airbag structure that meets the required performance requirements, it is relatively expensive to implement in practice

Method used

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  • Air bag with gas blocking sealant at sewn seams
  • Air bag with gas blocking sealant at sewn seams
  • Air bag with gas blocking sealant at sewn seams

Examples

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Embodiment Construction

[0011] Referring now to the drawings, in which like parts in the different views are labeled with like legend numerals. Returning to FIG. 1 , the internal structure of the delivery vehicle 10 is shown. It is to be understood that the transportation vehicle may have various configurations, such as an automobile, truck, van, sport utility vehicle, or the like. Regardless of the actual vehicle configuration, one or more rows of seats 12 will be included to support passengers 14 .

[0012] As shown, the vehicle 10 includes an impact absorbing airbag 16 that is used with an inflator 17 to rapidly deploy toward the occupants. Impact absorbing airbag 16 may be formed from one or more blanks, such as fabric or the like, joined together along seam 18 . According to the present invention, at least part of the seam 18 may be a seam seam formed by passing sewing thread through a stitch arrangement between opposing sheets of material. Of course, it is to be understood that the illustrat...

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Abstract

An inflatable air bag structure formed from panels joined together along one or more sewn seams. The sewn seams are sealed at the interior between the adjoined layers by a low modulus, high elongation sealant surrounding at least a portion of the sewing threads. The sealant fails under tension in a cohesive manner by tearing through the interior of the sealant layer while remaining adhered to the fabric thereby maintaining gas blockage when the seam is placed in tension.

Description

technical field [0001] The present invention relates generally to vehicle airbags, and more particularly to airbag cushions formed from sheets of material joined together by sewn seams. A sealant with prescribed characteristics is placed inside the sewn seam to prevent gas leakage for an extended period of time when the seam is under tension during airbag inflation. Background technique [0002] The role of airbag safety restraint systems in the form of impact-absorbing inflatable cushions facing vehicle occupants and / or inflatable restraint curtains placed along the side of the vehicle between the occupants and the windows or doors in preventing occupant injury in the event of a crash has been demonstrated. well known. Such airbags are rapidly inflated under the pressure of reactive gases released from the inflator, typically in the event of a crash. This gas generation usually occurs when the collision signal from the collision detection sensor triggers a chemical reacti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/16
CPCB29C65/72B29C66/729B60R21/235B29C66/133B29L2022/027B29C65/483B29C65/8223B29C66/43B29C65/62B29C65/5021B60R2021/2358B60R2021/23576B29C65/5057B60R2021/23595B29C65/8215
Inventor R·凯沙瓦拉吉
Owner MILLIKEN & CO
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