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Shade assembly for a transparent bodywork surface of a vehicle

A sunshade and component technology, applied in the field of sunshade components, can solve the problems of increased manufacturing cost, complex mechanism, expensive, etc., and achieve the effect of reduced manufacturing cost and convenient cleaning

Inactive Publication Date: 2008-06-25
WEBASTO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such double glazing of the transparent body surface of a vehicle is on the one hand very expensive and on the other hand has the disadvantage that the inner glazing must be designed to be movable or pivotable in order to allow the removal of particles, in During use, the particles can accumulate between the two glazing panes
This requires a complicated mechanism and further increases the manufacturing cost
[0008] While roller blind assemblies for transparent body surfaces of vehicles are also well known and provide a simple and inexpensive solution for shading transparent surfaces, they do not provide the convenience of rapid and noiseless changes in light transmittance or are irritating. Pleasant lighting conditions and, therefore, the sense of space achieved with electrically transformable layers like milk glass cannot be provided when used for shading

Method used

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  • Shade assembly for a transparent bodywork surface of a vehicle

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Embodiment Construction

[0026] Fig. 1 shows a transparent body surface of a vehicle in the form of a glass sheet 10 in a cross-sectional view through the roof area of ​​the motor vehicle. The light shield assembly has a roller blind 12 designed as an LCD film whose light transmittance can be changed by applying a voltage, thereby shielding the interior of the vehicle from incident light through the glass plate 10. The roller blind 12 is installed so that it can be wound and unrolled using the winding shaft 14. The voltage supply to the roller blind 12 may be provided through a loop contact (not shown) of the winding shaft 14. The roller blind 12 is guided away from the winding shaft 14 by a gap 20 which is lined with a felt strip 18 on both sides. The dimensions of the gap 20 and the two felt belts 18 are such that the roller blind 12 can pass through the gap without applying any large additional force, but on the other hand, the corresponding felt belts 18 are on both sides of the gap. In such a way, wh...

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Abstract

The invention relates to a shade assembly for a transparent bodywork surface (10) of a vehicle, said assembly comprising at least one section of variable light transmission. The assembly comprises at least one film, whose light transmission characteristics can be modified by the application of an electric current. According to the invention, the film forms part of a displaceable window blind web (12). The invention also relates to a vehicle roof comprising a roof opening, which is closed by a transparent pane (10) and can be shaded by a shade assembly as cited in the invention.

Description

Technical field [0001] The present invention relates to a shade assembly for a transparent chassis surface of a vehicle according to the preamble of claim 1, and to a vehicle roof according to claim 19, which It has a roof opening, which is closed by a transparent panel and such a light-shielding device. Background technique [0002] The surface of the vehicle body of a motor vehicle is usually designed to have glass on a large area, especially in the roof area, so as to achieve a more spacious feeling of space inside the vehicle due to the transparent opening. In order to obtain this comfort without being offset by excessive direct exposure to heat or cold, and allowing shading, it is suitable to design the car body surface as a suitable glazing in the form of a glass panel, It can block light. [0003] DE 199 62 115 A1 proposes such a device for changing the transparency by applying a voltage, such as a liquid crystal display device or an electrochrome panel, which should be in...

Claims

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Application Information

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IPC IPC(8): B60J7/00
CPCB60J7/0015
Inventor R·维默尔
Owner WEBASTO AG
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