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Composite materials for airbag covers

A technology of airbags and composite materials, which can be used in vehicle safety arrangement, pedestrian/occupant safety arrangement, application, etc., and can solve the problems of time-consuming and cost

Active Publication Date: 2021-01-05
K L KASCHIER UND LAMINIER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this process is time-consuming and expensive based on multiple processing steps

Method used

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  • Composite materials for airbag covers
  • Composite materials for airbag covers
  • Composite materials for airbag covers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The airbag cover is made of a rigid and / or hard, plate-like or web-like plastic material and is therefore a relatively thin planar object with a uniform thickness everywhere and limited elasticity (as opposed to a film).

[0019] The airbag cover is here made of a thermoplastic material, in particular thermoplastic polypropylene (PP). The material is preferably a self-reinforcing composite material 1 (composite / composite) in the form of a plate, in which homogeneous polypropylene films, copolyolefin films, homogeneous polyester films or copolyester films alternate with other reinforcing layers, so that Said other reinforcing layers are made of or contain polypropylene or polyester tapes. In this case, the strips form a thin layer in which the strips are arranged sequentially, in particular laid or interwoven like a fabric, or arranged crosswise and transversely in a random manner. In each case referred to below as "fabric layer". The film layers and tape layers (reinf...

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Abstract

The invention relates to a composite material (1) for an airbag cover, comprising at least one textile layer as a sheet material, the cover forming at least one hinged flap, the textile layer being on one side or A plastic coating (2), in particular a film, is provided on both sides, said coating has a lower melting point than the textile layer, and the composite material forms at least one single or double fold (3) along the hinge in the hinge region, where Where the sheet-like material rests once or twice on one or two sides, the coating surfaces, in particular the film surfaces, rest against each other in the region of the folds and are fused together by a preceding or subsequent heat input.

Description

technical field [0001] The invention relates to a composite material for an airbag cover, comprising at least one textile layer as a sheet material, the cover forming at least one flap with a hinge. Background technique [0002] Airbag covers made of plastic are known which form one or two flaps which each have a predetermined break line on three edges and which rupture there after triggering the airbag and A hinge is formed on the fourth edge, about which the flap is pivoted and does not break there, so that it is ensured that the flap does not fly into the interior of the motor vehicle. The secure holding of the flap in the hinge region is achieved by additional, unbroken yarns in the hinge region, as is known, for example, from EP2057044. [0003] Furthermore, DE 10 2012 021 315 A1 discloses that the hinge of the airbag cover flap is provided with folds / folds or loops which unfold when the hinge is opened and thus release the hinge for the flap. Additional itinerary. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R21/215B32B27/08B32B27/12B32B27/32B32B27/36B32B3/04B32B3/10B32B3/30B32B5/02B32B5/26B32B7/02B32B7/04B32B7/027
CPCB60R21/215B60R2021/21537B32B7/027B32B5/02B32B5/26B32B7/04B32B27/08B32B27/12B32B27/32B32B27/36B32B3/04B32B3/10B32B3/30B32B2255/02B32B2255/26B32B2262/0253B32B2262/0276B32B2307/732B32B2571/00B32B2605/003B32B2605/08D06N3/0011D06N3/123D06N3/045B32B5/024B32B2605/00
Inventor M·霍因A·罗林R·舒尔茨维宁克
Owner K L KASCHIER UND LAMINIER GMBH