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Body add-on part for a vehicle and its method of manufacture

A technology for motor vehicles and car bodies, which is applied to vehicle components, superstructures, superstructure sub-assemblies, etc., and can solve problems such as fouling of docking surfaces and pollution

Inactive Publication Date: 2006-11-01
ARVINMERITOR GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These release agents are usually applied by spray which can lead to contamination and soiling of mating surfaces

Method used

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  • Body add-on part for a vehicle and its method of manufacture
  • Body add-on part for a vehicle and its method of manufacture
  • Body add-on part for a vehicle and its method of manufacture

Examples

Experimental program
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Embodiment Construction

[0023] figure 1 A motor vehicle body attachment in the form of a roof module 10 is shown. In addition to the roof module 10 , the body attachments can also be, for example, fenders, doors or panels (bonnet, boot lid, fuel tank lid, etc.) of the vehicle.

[0024] When mounted to a vehicle, the foam roof module 10 has a visible outer side 12 and an inner side 14 opposite the outer side 12 . The outer side 12 is defined by a thin deep-drawn sheet shell 16, preferably manufactured from fully tinted aluminum or plastic.

[0025] Arranged directly adjacent to the film shell 16 is a foam layer 18 of fiber-reinforced PU foam, wherein glass fibers are incorporated into the foam by the LFI method so that the foam layer 18 is reinforced. exist figure 2 In the entire length shown, the thickness of the foam layer 18 is substantially uniform, but may also have a varying thickness.

[0026] Extending across the entire inner side 14 is a thin, flexible PE film 20 which completely defines...

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PUM

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Abstract

A car body attachment part, when mounted to a motor vehicle, has an inner side comprising a surface portion, and an opposite, visible outer side. A method for producing the car body attachment part includes the following steps. A foaming mold is provided that includes a first tool mold die and a second tool mold die. The inner side of the car body attachment part is associated with the first tool mold die, and the outer side is associated with the second tool mold die. Next, a protective foil is inserted in the first tool mold die, at least in a region of the surface portion. The protective foil is provided with a foam backing so that the inner side in the region of the surface portion is constituted by the protective foil. The protective foil is connected with the foam backing such that the protective foil can be peeled off from the foam backing in a non-destructive manner. The car body attachment part is particularly useful as a roof module mounted to a roof of a motor vehicle.

Description

technical field [0001] The invention relates to a method of producing a bodywork attachment and also to a bodywork attachment for a motor vehicle. Background technique [0002] Foamed bodywork attachments, especially those comprising polyurethane (PU) materials reinforced with glass fibres, are known in which glass fibers are injected into the plastic, for example by the so-called LFI method (Long Fiber Infusion method) middle. A deep-drawn sheet shell made of plastic or aluminum is placed in the foam mold and provided with a foam backing. After the PU material has reacted and foamed, the body attachment must be removed from the foaming mold without damage. [0003] In order to avoid damage to the bodywork attachment, it is known to apply a release agent to the foam mold at the point opposite the outer shell before the foaming process, so that the foamed bodywork attachment can be removed without difficulty. These release agents are usually applied by spraying, which can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C44/12B62D25/00
CPCB29C44/14
Inventor 马蒂亚斯·路德维希弗兰克·尼布尔哈拉尔德·巴特克汉斯-约阿希姆·朗霍夫托比亚斯·尼斯纳斯文·哈德尔赫贝特·贝克
Owner ARVINMERITOR GMBH