WO2013030042A1

WO2013030042A1 - Moulded part for forming a vehicle component

Info

Publication number: WO2013030042A1
Application number: PCT/EP2012/066256
Authority: WO
Inventors: Manfred Winklbauer; Christoph Jonischkeit; Michael Windl; Elena Justus-Bischler; Inga Grieger
Original assignee: Lisa Dräxlmaier GmbH
Priority date: 2011-08-31
Filing date: 2012-08-21
Publication date: 2013-03-07
Also published as: DE102011081864B4; DE102011081864A1

Abstract

The invention relates to a moulded part ( 10 ) for forming a vehicle component, said moulded part having a single-piece base body, which comprises a first surface (12) and a second surface (14) said first and second surfaces intersecting each other. The base body contains a light-conducting material at least in the area of the first surface (12). It is designed such that coupled light is decoupled in the area of the first surface (12).

Description

Molded part for forming a vehicle component

TECHNICAL AREA

The invention relates to a molded part for forming a

Vehicle component having a one-piece body having a first surface and a second surface, wherein the first and the second surface intersect.

STATE OF THE ART

As a rule, the lighting in the car is achieved with a light source in the interior. However, annoying, blinding light often arises, which distracts the driver when driving in darkness and impairs his attention.

In principle, it is known that indirect or linear lighting can be introduced into the interior via special light guides. For this purpose, a separate light body or a light guide is used so far, which must be installed and attached separately. Furthermore, this type of lighting requires additional space for the separate elements and the attachment.

An example of such illumination by a light guide is given by DE 10 2008 008 180 AI, according to the light is coupled by a light source in an optical waveguide. In this case, the light is coupled in substantially parallel to a side edge of the elongated light guide and coupled out laterally over a surface to this side edge.

Such constructions have hitherto been known only for pure light guides, which are designed such that the light can be optimally conducted and / or decoupled at certain points and thus used for illumination. If light is to be brought into the interior of a vehicle by a light guide, this often requires expensive constructions in order to guide the light in a targeted manner into the interior and to make the lighting visually appealing.

Against this background, the object of the invention is to provide a possibility for illuminating the vehicle interior of a vehicle, on the one hand a diaphragm of the

Vehicle occupants avoids and on the other hand a visual

appealing interior lighting allows that requires little space and a small number of parts.

PRESENTATION OF THE INVENTION

The solution of the problem is given by the subject of claim 1. Further advantageous embodiments will be apparent from the dependent claims.

According to the invention comprises a molding for forming a

Vehicle component, a one-piece body having a first surface and a second surface, wherein the first and the second surface intersect. In this case, at least a region of the first surface contains light-conducting material and the base body is configured to be in the region of the first surface

decoupled coupled light.

The expression "area of a surface" is understood to mean a planar part of the molded part, which term designates not only a surface, but also a part of the basic body, which may for example be substantially cuboidal or curved and extends below the surface into the main body ,

"Integral" in this context means that there is a material connection between the parts of a one-piece element, but the one-piece element may still have several parts that are not made of the same material. exhibit. A manufactured in 2K injection molding process element is therefore also in one piece.

The one-piece body having the first and second surfaces eliminates the need to attach separate components together, thereby reducing the labor involved in assembling the vehicle component. The fact that the first and second surfaces intersect means that these surfaces are arranged at an angle to each other which makes light transmission at that angle more difficult. Preferably, the light pipe is completely suppressed by this angle, that is, in one direction, so that the light would have to follow the angle perpendicular to the cutting line. However, this also means that the first and second surfaces intersect over a curve. Of the

Transition between a first and second surface is therefore at a sufficiently small radius of curvature, so that light can not follow the corresponding rounding, to understand as an angle.

Preferably, the area of the first area includes

transparent or translucent material. At a

transparent or translucent material not only the light pipe through the area of the first surface is possible, but the first surface can also be placed on a decorative surface, so that the decor from the vehicle interior through the first surface is visible. This allows a

particularly attractive visual design of the vehicle interior.

In a preferred embodiment, the first surface is designed to decouple surface-coupled light in the region of the first surface. This means that the Lich, which is coupled for example via a side edge of the base body in the region of the first surface, can be coupled out via the first surface, so that a discreet and uniform surface illumination image can be achieved by the first surface. Advantageously, the first and second surfaces intersect along one edge, and the molding is configured to decouple light coupled into the region of the first surface along the edge. Such a design allows

in particular a strong manifestation of light lines, that is to say of one-dimensional light sources along the edge or of the several edges between the first surface and the second one

Area . Thus, both a surface as well as a

Line lighting are possible, which allows attractive visual appearance of the molding. The decoupling along the edge may be effected, for example, by the angle at which the first and second surfaces intersect along the edge, or by the radius of curvature at that edge.

In an advantageous embodiment, the first contain

Surface and the second surface different materials. Through this choice of materials, diverse designs of the molded part and thus of the vehicle component can be realized and also influence the light pipe properties of the molded part. However, the various materials are integral with each other, for example by 2K injection molding.

Advantageously, the first surface is at least partially provided with a treatment, so that a coupling of light from the region of the first surface in a region of

Treatment appears differently than in an untreated area. In this way it is possible, the appearance of the molded part and thus also of Fahrzeugbautei1s in

various ways to influence and thus to increase its value.

The treatment is preferably a print that

Introduction of a joint, roughening, erosion, milling, embossing, deformation, the introduction of air inclusions or microlenses or a recess which influences, in particular amplifies or attenuates, the extraction of light from the area of the first surface. To this It is possible, especially light or dark areas, shades, patterns, depth effects, lenticular areas or the like on the first surface of the molding

form, so that there are wei possibilities for the optical design and enhancement of the vehicle component.

In a preferred embodiment, the molding is configured to at least partially on a decorative surface

to be applied, so that the ornamental surface at least

partially visible through the first surface. In such an embodiment, it is possible to make the vehicle component appear particularly attractive in the dark by lighting effects. On the other hand, a decorative appearance of the vehicle component can be achieved in brightness by the decorative surface is at least partially visible through the first surface. The decorative surface and the first surface can also be coordinated with one another such that the decorative surface is visible even in the dark, in particular by illumination through the first surface. The vehicle component can thus be designed particularly attractive.

Advantageously, the molding is configured to light at least in the region of the first surface over a side edge

coupled, wherein the peripheral extent of the side edge is less than half, preferably less than a quarter and more preferably less than one-eighth of the entire circumference of the first surface. In other words, light can be coupled through a particularly narrow side edge of the first surface into the region of the first surface and decoupled over the first surface and / or one of the edges of the first surface. This preferred embodiment contributes to a discreet and uniform illumination of the vehicle component

realize, because the light source from the outside is not necessarily visible, but can be covered and only causes a gentle illumination through the first surface.

Advantageously, the molding comprises at least one light source for coupling light at least into the region of the first surface, wherein the light source is covered so that it is not directly visible. Bright light spots are thereby avoided. Already with few light sources can a large area

Illumination can be achieved.

By this configuration, the direct and dazzling

Lighting the interior of the vehicle are avoided, while still providing an attractive and effective lighting of the

Vehicle component is possible.

By the above-described invention and the preferred embodiments, unique effects of planar and linear illumination of a vehicle component are possible, which do not require separate light guides or light bodies. In this way, the space otherwise required for this and separate fastening means can be saved, which can also contribute to a more efficient production of the vehicle component.

Preferably, light from LEDs or OLEDs, etc. may be over a short side edge of a transparent or translucent one

Plastic molded part are coupled, which is at the same time functional component. Such a functional component is

beispie1sv / eise formed by a trim part, a decorative surface or other components of the vehicle. The illumination via a light coupling can take place directly, in particular punctiform, in an area of an edge between the first and the second area in order to illuminate the first area more weakly and to emphasize the edge on the other hand.

The vehicle component may be both a structural and a purely decorative component and by folding, injection molding,

Thermoforming or other usual methods designed and

getting produced. In particular, it is provided that the

Component has so-called cambered surfaces, which are characterized by a gentle curvature.

The at least one light source preferably sits behind a diaphragm or a component, so that the light source itself and are covered by the light source from the first 0, 5 to 2 cm of the first surface. Here, otherwise, a relatively high intensity is generated and impaired the valence of the design of the molding. In addition, a glare is prevented by the light source or the particularly intense glowing area of the first surface in unmichtbare near the light source.

A f the first surface also printed or colored films, translucent materials, opaque materials, such as textiles, metal plates or glasses are attached, which do not affect the propagation of light as long as an air layer between them

Materials and the first surface is present and no mechanical attachment to the first surface itself takes place. For the first surface, preferably a transparent or translucent material, e.g. PC or PMMA used.

The molding described herein may be particularly preferably used to form an I-panel, a center console, a

Door trim, a vehicle headlining or partial areas thereof are used.

Further preferred embodiments, advantages and features of the invention will become apparent from the totality of the claims and the following description of the figures.

BRIEF FIGURE DESCRIPTION

Fig. 1 shows a schematic lateral Schnittansieht a preferred embodiment of a molding.

Fig. 2 shows a second preferred embodiment

Shaped part in a side sectional view.

Fig. 3 shows a third preferred embodiment of a

Shaped part in a side sectional view. Fig. 4 shows a fourth preferred embodiment of a molding in a side sectional view.

Fig. 5 shows a perspective view of a fifth

preferred embodiment of a molded part.

Fig. Fig. 6 shows a perspective view of a sixth

preferred embodiment of a molded part.

Fig. 7 shows a perspective view of a seventh

preferred embodiment of a molded part.

Fig. 8 shows a perspective view of an eighth

preferred embodiment of a molded part.

WAYS FOR CARRYING OUT THE INVENTION

Fig. 1 shows a side sectional view of a molded part 10 with a base body having a first surface 12, in which

Area is arranged as a LED formed light source 13, according to a first preferred embodiment. The first surface 12 is coated with a protective layer 20, which they outwardly from external influences, in particular scratches or

Protects contaminants. Below the range of the first

Surface 12 is an ornamental surface 18, for example, s a wood, textile, leather, glass, metal or another

Decorative material can be formed. Under the decorative surface 18 is a support 16, which may be made of aluminum, for example. However, such a carrier or such a decorative surface are not necessary in a molded part according to the invention, because such a molded part can also be designed to be self-supporting and / or decorative and thus can fulfill other functions in addition to the lighting.

The protective layer 20 and the region of the first surface 12 are transparent, so that the decorative surface 18 is visible from the outside, that is, from above the protective layer 20. Identical elements are identified in the accompanying figures by the same reference numerals and not for each

Embodiment described separately.

Fig. 2 shows a second preferred embodiment of a

Shaped part 10 in a representation analogous to FIG.

In addition to the in Fig. 1 and shown for this purpose, Fig. 2 shows a treatment layer 22, the

intentional surface defects, roughening, erosion, ikrolinsen, milling, deformation, Bedr ckungen, splices and the like to influence the light extraction from the region of the first surface 12 may have. Here, one or more similar or different

Machining be provided in the treatment layer 22, through which the external appearance of the molded part can be significantly designed. The treatment slide 22 may also be disposed over the first surface 12 (not shown). Also, two treatment layers 22, one above the first surface 12 and one below the first surface 12, may be provided (not shown). The treatment may also be integrated directly into the first area (not shown).

Fig. 3 shows a third preferred embodiment of a

Molded part 10 having a first surface 12, one thereon

attached protective layer 20 and a decorative surface 18 and a carrier 16, as in the first and second

Embodiment of Figures 1 and 2 are shown.

In contrast to the first and the second embodiment of Figures 1 and 2, the lateral Schni tansicht of FIG. 3 spacer elements 24, an air layer 25 between the

Ornamental surface 18 and the area of the first surface 12 allow. This layer of air 25 affects the visibility and the

Appearance of the decorative surface 18 through the first surface 12 and the protective layer 20.

Fig. 4 shows a fourth preferred embodiment of

Shaped part 10 in an analogous to the figures 1 to 3 Presentation . In addition to the third preferred

Embodiment of FIG. 3 has the in Fig. 4 shown fourth

Embodiment a treatment splitter 22, the

Treatment layer 22 of FIG. 2 corresponds. Below the

Treatment layer 22 is in the fourth

Embodiment, an air layer 25 by spacer elements

24 opposite the decorative surface 18 is generated. The

Treatment layer 22 is at the region of the first one

Surface 12 arranged that the light-guiding properties and the

Lichtauskopplungseigenschaften the area of the first surface 12 can be influenced by the treatment layer 22.

Fig. 5 shows a perspective view of a molding 10 according to a fifth preferred embodiment with a

Basic body having a first surface 12 and a second surface 14 which intersect and are integrally connected together. Furthermore, in FIG. 5, a third surface 26 is shown that intersects at least the second surface 14 and is integrally formed with the first surface 12 and the second surface 14.

The in Fig. Shaped part 10 shown represents a molding for a center console in a vehicle. Along one side edge, an LED assembly 28 is mounted, the light over this

Side edge in the region of the first surface 12 couples and thus generally provides the opportunity for coupling the light from the photoconductive region of the first surface 12.

Fig. FIG. 6 shows a variation of the fifth embodiment as a sixth preferred embodiment in which the first surface 12 is provided with a print image 30. On the one hand, the printed image 30 on the one hand already generates an optical characteristic of the first surface 12. Furthermore, the printed image 30 can be designed in such a way that, in addition to the printed image 30, light intensively outcoupling regions 31 and light only weakly outcoupling regions 32 arise. Thus, the visual appearance of the first surface 12 and thus of Fahrzeugbautei1s be influenced in many ways. Fig. 7 shows a seventh preferred embodiment of a

Molded part 10. Different from the fifth and sixth

preferred embodiment, the embodiment of FIG. 7 is configured such that along the edges 34 between the first surface 12 and the second surface 14 and between the second surface 14 and the third surface 26 light is coupled out of the molded part 10.

As a result, these edges 34 appear to be particularly intensively illuminated and thus emphasize the contour of the molded part 10. The first surface 12 and in this seventh preferred embodiment also the second surface 14 also couple light flat, but with a significantly lower intensity in comparison with that by the edges 34

decoupled light. By this design, a non-dazzling and attractive lighting can be achieved with an accentuation of the design lines of a vehicle component.

Fig. 8 shows a further variant of the molded part 10 according to a eighth preferred embodiment. Unlike in the

Embodiment of FIG. However, light 7 is not coupled into the region of the first surface 12 by an LED arrangement 28 over an entire side edge. Instead, four individual LEDs 36 are arranged so that they light punctiform and

directly in the region of the edges 34 between the first surface 12 and second surface 14 and between the second surface 14 and the third surface 26 couple. Thus, the first, second, and third surfaces may be illuminated or unlit, while the edges 34 between these surfaces are illuminated and emit light along the contour of the molding 10. This leads to a further increase in the variety of design options of a molded part 10 by the invention.

Claims

claims

A molded part (10) for forming a vehicle component with an integral base body having a first surface (12) and a second surface (14),

wherein the first (12) and the second surface (14) intersect,

wherein the base body at least in the region of the first surface (12) contains light-conducting material and

is designed to decouple coupled into the region of the first surface (12) coupled light.

2. molding (10) according to claim 1, wherein the region of the first surface (12) contains a transparent or translucent material.

3. molding (10) according to any one of the preceding claims, wherein the region of the first surface (12) is adapted to couple in the region of the first surface (12) coupled light surface.

4. molding (10) according to any one of the preceding claims, wherein the first (12) and the second surface (14) intersect along an edge (34) and the molding (10) is adapted, in the region of the first surface ( 12) coupling in coupled light along the edge (34).

A molding (10) according to any one of the preceding claims, wherein the first surface (12) and the second surface (14) contain different materials.

6. molded part (10) according to egg em of the preceding A claims, wherein the first surface (12) at least partially with a

Treatment is provided so that a coupling of light from the area of the first surface (12) in an area of the

Treatment different than in an untreated area

appears.

7. molding (10) according to claim 6, wherein the treatment is a printing, the insertion of a joint, a roughening, an erosion, a milling, an embossing, a deformation, the introduction of air bubbles or microlenses or a recess, which is the decoupling influenced by light from the area of the first surface (12), in particular amplified or attenuated.

8. Molding (10) according to one of the preceding claims, wherein the molded part (10) is adapted to be at least partially applied to a decorative surface (18), so that the

Ornamental surface (18) remains at least partially visible through the first surface (12).

3. molded part (10) according to one of the preceding claims, which is configured to couple light at least in the region of the first surface (12) via a side edge,

wherein the peripheral extent of the side edge is less than half, preferably less than a quarter, and more preferably less than one-eighth of the total circumference of the first surface.

10. molding (10) according to any one of the preceding claims, which has at least one light source (13) for coupling light at least in the region of the first surface (12),

wherein the light source (13) is covered such that it is not directly visible.