Stock material or miscellaneous articles – Sheet including cover or casing – Foamed or expanded material encased
Patent
1995-06-28
1997-08-19
Ryan, Patrick
Stock material or miscellaneous articles
Sheet including cover or casing
Foamed or expanded material encased
428 76, 428159, 428192, 428178, 4283044, 4283066, 4283099, 296 70, 296191, 264 465, 264 467, 156 79, B32B 900
Patent
active
056586523
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an arrangement for panels in vehicles in accordance with the preamble of the following claim 1.
BACKGROUND OF THE INVENTION
Vehicles, for instance motor vehicles, aircraft and speedboats normally have panels of a semi-hard type with a surface which is relatively shape permanent and stable, and which is supported by a carrier which is arranged to absorb impact energy to a high degree, for example in collisions. Such panels are generally produced from a polymer material, for example a layer of PVC which is supported by polyurethane foam. The disadvantage with the materials which best fulfill the demands of impact energy absorbtion and a decorative surface is, compared with panels of for example wood or sheet metal, that the material ages relatively quickly at high temperatures. Particularly within certain geographic areas, the temperature in a sunlit, closed and parked vehicle interior may exceed 100.degree. C., which relatively quickly leads to drying, cracking, miscolouring and even shape changes. High surface temperatures, i.e. hot contact surfaces of panels in a vehicle, of course also has a great influence on the travel comfort.
Previous attempts have been made to solve the problems identified above through an improved reflection of the heat radiation, see for example U.S. Pat. No. 4,987,029. This publication shows two outer layers which comprise aluminium powder. The layers are otherwise composed of polymer materials. These layers are not diffusion-tight for volatile substances in underlying carriers which are normally produced from a polymer foam, which results in an ageing of the surface material. Furthermore, the aluminium powder is present in a relatively low degree of concentration, less than 10%, which gives a limited heat reflection. A non-homogenous layer of this kind has low mechanical strength and is relatively costly.
It is known from U.S. Pat. No. 4,830,908 to provide a vehicle panel with a reflecting metal foil which, however, is arranged at a relatively great distance from the surface being exposed to heat radiation, due to the fact that the cover layer is relatively thick and that an additional layer in the form of a grid is provided. The purpose of the metal foil is in this case to form a carrier, together with the grid structure, for the surface material so that good strength properties are obtained. It is evident from the deep-lying placing of the metal foil that any reflection properties are not intentionally sought.
SUMMARY OF THE INVENTION
The purpose of the present invention is to provide an arrangement, by which the surface temperature of the panel for vehicles may be kept at an acceptable level.
This purpose is achieved by a device in accordance with the present invention, whose features will be apparent from the appended claim 1.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described in greater detail by way of example and with reference to the accompanying drawings, wherein
FIG. 1 shows a cross-section of a vehicle panel in a first embodiment in accordance with the present invention,
FIG. 2 shows a cross-section of a vehicle panel in accordance with a third embodiment of the device in accordance with the invention,
FIG. 3 shows a cross-section of a vehicle panel in accordance with an alternative embodiment,
FIG. 4 shows the vehicle panel of FIG. 1, together with parts of the interior of a vehicle compartment in a perspective view,
FIG. 5 shows principally the same structure as FIG. 4, but in an application as a back rest support in a rear seat of a vehicle, while
FIG. 6 shows the vehicle panel in accordance with the invention in an alternative embodiment in the form of a vehicle bumper.
It is apparent from FIGS. 1 and 2 that the panel, which has been shown as an example, constitutes a dashboard for a motor vehicle, car, truck, bus or the like, for example having a closed passenger compartment, or alternatively an open compartment, i.e. a convertible. The dashboard is formed by an outer cover sheet 1, pre
REFERENCES:
patent: 4830908 (1989-05-01), Nakajima et al.
patent: 4987029 (1991-01-01), Wagner et al.
AB Volvo
Bahta Abraham
Ryan Patrick
LandOfFree
Panel structure for vehicles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Panel structure for vehicles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Panel structure for vehicles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1103199