Lining panel for a motor vehicle

Abstract

The invention relates to a lining panel for a motor vehicle, wherein an opening is configured in the lining panel. A first portion of a light-transmissive light sheet extends into the opening, wherein the first portion substantially fills the contour of the opening. A light conductor is arranged at the back side of the light sheet, through which light conductor light of at least one light-emitting device can be guided and output in the direction of the light sheet. A second portion of the edge side of the light sheet serves to lie against the back side of the lining panel. The second portion of the edge side has a smaller thickness than the first portion of the light sheet which extends into the opening of the lining panel. At least locally between the first portion of the light sheet which extends into the opening and the lining panel a clear distance is configured. According to the invention, in the region of the second portion of the edge side of the light sheet, at least in the region of the clear distance, a region is present which has a reduced light transmissivity relative to the first portion of the light sheet and which, in a plan view of the contour of the opening, fills the clear distance.

Description

TECHNICAL FIELD

[0001] The present application relates to a lining panel for a motor vehicle. BACKGROUND

[0002] Such a lining panel is already known from the applicant's motor vehicle which is present on the market.

[0003] With such a lining panel it is possible to create a very pleasant and attractive ambient lighting. It is desirable here for the lighting device to radiate a homogeneous, uniformly bright light over the entire area of the light pane.

[0004] Furthermore, it is known from DE 197 54 227 A1 a headlamp having a light-emitting device, wherein the light-emitting device is arranged in a housing having a light exit opening. The light exit opening is covered by a transparent or partially transparent light pane, wherein the light pane extends with its outer edge beyond the housing. The edge of the light pane which extends beyond the housing is provided with a non-light-transmissive coating. Thereby, an intrusion of water or contamination between the edge of the light pane and an adjacent vehicle body part should be made possible for the headlamp to have a homogeneous appearance.

[0005] It is known from WO 2012 / 050983 A2 a lighting device having a plurality of light-emitting diodes on a circuit board. The light-emitting diodes are surrounded by an inclined, reflector-like wall. The light exit opening of the wall is covered by an optical element, wherein the optical element is arranged between the light-emitting diodes and a self-luminous material, for example a phosphor. On the radially outer side, the optical element is provided with a reflective layer, through which the light emitted by the light-emitting diodes is reflected in the direction of the self-luminous material. Thereby, a light loss should be reduced.

[0006] Finally, it is known from DE 1 629 509 U a signal lamp for a motor vehicle. The signal lamp has a cover sheet which is provided with edge strips and dividing strips. The edge strips and the dividing strips are provided with a mirror layer. On its inner side, the cover sheet is provided with a paint layer having the associated signal color. SUMMARY

[0007] Starting from the known prior art, it is the object of the present application to provide a lining panel for a motor vehicle, with which an extremely homogeneous ambient light can be produced.

[0008] This object is achieved by a lining panel for a motor vehicle according to the present application.

[0009] The invention starts from a lining panel for a motor vehicle, wherein an opening is configured in the lining panel. A first portion of a light-transmissive, preferably translucent, light sheet extends into the opening. The first portion of the light-transmissive light sheet substantially fills the contour of the opening, wherein a light conductor is arranged at the back side of the light sheet. Light of at least one light-emitting device can be guided through the light conductor and output in the direction of the light sheet. The light-emitting device can be an integral part of a light module, preferably a light-emitting diode light module. Here, a second portion of the edge side of the light sheet serves to lie against at the back side of the lining panel. The second portion of the edge side of the light sheet has a smaller thickness than the first portion of the light sheet that extends into the opening of the lining panel. At least locally between the first portion of the light sheet that extends into the opening and the lining panel or the opening edge of the lining panel, a clear distance is configured. The clear distance can be configured, for example, in the form of a gap.

[0010] The invention now proposes that the second portion of the edge side of the light sheet has, at least in the region of the clear distance, a region that has a reduced light transmissivity relative to the first portion of the light sheet and that fills the clear distance in a top view of the contour of the opening.

[0011] In this way, it can be effectively prevented that the light sheet, in the case of the light-emitting device being switched on, emits more brightly in the region of the second portion of the edge side than in the portion that extends into the opening of the lining panel. In other words, it is thus possible to prevent or at least significantly reduce the configuration of so-called hotspots by these features. This leads to a very homogeneous appearance of the light escaping from the opening of the lining panel into the interior space of the motor vehicle.

[0012] According to a first refinement of the invention, the region with the reduced light transmissivity has a light transmissivity that is between approximately 0% and approximately 90%, preferably between approximately 0% and approximately 75%, of the light transmissivity of the first portion of the light sheet. The light transmissivity can also be referred to as the degree of transmission.

[0013] It has proven to be the case that with this reduced degree of transmission of the region, a very homogeneous light appearance can be produced.

[0014] In another configuration of the invention, the region with the reduced light transmissivity is formed by a coating. The coating thus has a light transmissivity that is between approximately 0% and approximately 90%, preferably between approximately 0% and approximately 75%, of the light transmissivity of the first portion of the light sheet. The coating can be formed, for example, by a lacquer layer. The lacquer layer can be applied cost-effectively and reliably in terms of process.

[0015] Alternatively, it is also conceivable that the region of reduced light permeability is formed by a film. In this case, the film thus has a light permeability which is between approximately 0% and approximately 90%, preferably between approximately 0% and approximately 75%, of the light permeability of the first portion of the light sheet.

[0016] Finally, as a further possibility, it is conceivable that the region of reduced light permeability is constructed from at least one second material component of the light sheet. In this case, the material component has a light permeability which is between approximately 0% and approximately 90%, preferably between approximately 0% and approximately 75%, of the light permeability of the first portion of the light sheet. In other words, the light sheet in the region is constructed as a multi-component portion, preferably as a two-component portion. Thus, the light sheet can be produced very cost-effectively from plastic in a multi-component injection-molding process.

[0017] According to an advantageous design of the application, the region of reduced light permeability can be black. In this way, such a reduced light permeability of the region can be easily achieved which is even only 0% of the light permeability of the first portion of the light sheet. The region is thus constructed as non-light-permeable.

[0018] According to an advantageous design of the application, the second portion of the light sheet on the edge side can have a flat surface which faces the interior lining panel. Thereby, on the one hand, the abutment of the light sheet at the interior lining panel is simplified, and on the other hand, this also enables a simplified application of the film or coating having reduced light permeability.

[0019] Furthermore, it is proposed that the back side of the light sheet is formed by a flat surface. Thereby, a prerequisite is provided for reliably abutting the light conductor to the back side of the light sheet.

[0020] Furthermore, it is advantageous if the first portion of the light sheet which projects into the opening tapers in cross-section in the direction of the free end. The tapering can preferably be configured conically. Thereby, it is possible to at least reduce the occurrence of a tolerance-dependent gap between the opening in the interior lining panel and the portion of the light sheet which projects into the opening.

[0021] For example, if the opening in the interior lining panel and the portion of the light sheet which projects into the opening are configured long and narrow, for example strip-like or slit-like, it is possible to more easily ensure a contact between the light sheet and the interior lining panel at least at the longitudinal sides of the portion of the light sheet which projects into the opening. Thereby, it is possible to prevent the second portion of the light sheet on the edge side from being visible from the interior space of the motor vehicle.

[0022] Finally, the application also protects a motor vehicle having at least one interior lining panel according to the application. The interior lining panel according to the application can preferably be a door interior lining panel. However, it is also conceivable that the interior lining panel according to the application is formed by an instrument panel interior lining panel, a pillar interior lining panel or also a roof lining panel. Attached Figure Description

[0023] Preferred embodiments of the invention are shown in the accompanying drawings and are explained in more detail in the following description with reference to the drawings. This also makes other features and advantages of the invention clear. Even in different drawings, the same reference numerals refer to the same, similar, or functionally identical components. Corresponding or similar features and advantages are realized here, even without being described or mentioned repeatedly. The drawings are not, or at least not always, to scale. In some drawings, scale or distances may be exaggerated to more clearly highlight the features of the embodiments. If the term "and / or" is used in a list of two or more terms or objects, this may mean that only one of the listed terms or objects may be used. It may also mean that any combination of two or more listed terms or objects may be used.

[0024] The following are respectively illustrative:

[0025] Figure 1 A motor vehicle with a liner panel according to the invention is shown, the liner panel being configured as a door liner panel.

[0026] Figure 2 It shows that according to Figure 1 Detailed view II, view of the inner lining plate.

[0027] Figure 3 It shows that according to Figure 2 The view of the inner lining plate with section direction III in the middle, and

[0028] Figure 4 It shows that according to Figure 2 The view of the inner lining plate of section IV. Detailed Implementation

[0029] First refer to Figure 1 The figure partially shows a motor vehicle K. The motor vehicle K has an interior liner 10 within its interior space, which is configured as a door liner in the area of ​​the entrance door. Each liner 10 has a first portion 10a located above and a second portion 10b located below. An opening 11 is constructed via the portions 10a and 10b that abut against each other. Alternatively, the opening 11 could be constructed using a single-piece liner.

[0030] The opening 11 is elongated in its outline. The opening 11 is preferably constructed as a strip, band, or slit. However, unlike this embodiment, it is also conceivable that the opening is constructed differently in its outline, for example, as a circle, ellipse, or square.

[0031] The light sheet 12 with the first part 12a is inserted into the opening 11 (see also)Figure 2 ).

[0032] Here, the light sheet 12 extends into the opening 11 with its first portion 12a such that it substantially fills the outline of the opening 11, i.e., it contacts the boundary edge of the opening 11 at its edge.

[0033] However, due to length tolerances, a net distance 'a' is maintained at the longitudinal end E of the light sheet 12 between the inner liner 10 and the first portion 12a of the light sheet 12, or in other words, a net surface area (also referred to) Figure 2 ).

[0034] The light sheet 12 is preferably configured to scatter light. For example, it can have a white or milky white appearance. The opening 11 into which the first portion 12a of the light sheet 12 extends is preferably configured as a slit or strip and has a longitudinal extension l that is many times greater than the width b of the opening 11.

[0035] from Figure 2 and Figure 3 It is clear that the light sheet 12 consists of a first portion 12a and a second portion 12b extending into the opening 11. The portions 12a and 12b are connected to each other by material fitting. The second portion 12b extends laterally from the first portion 12a of the light sheet 12 in a flange-like or plate-like manner.

[0036] from Figure 3 As can be seen, the first part 12a of the light sheet has a thickness d1, while the second part 12b of the light sheet 12 has a thickness d2. The thickness d2 is less than the thickness d1. Preferably, the thickness d2 is several times smaller than the thickness d1.

[0037] By reducing the thickness d2, an abutment flange is constructed in the edge region of the light sheet 12, which allows the light sheet 12 to be abutted against the back side 100a or 100b of the first portion 10a or the second portion 10b of the inner liner 10 (see also...). Figure 4 ).

[0038] As can be seen, a light conductor 13 is attached to the back side of the light sheet 12. The back side of the light sheet 12 is preferably formed of a flat surface O2. This facilitates the optimal attachment of the light conductor 13 to the back side of the light sheet 12.

[0039] The optical module L (reference) is indicated by the dashed line. Figure 1 The light beam L1 is incident on the edge side in the longitudinal direction of the light conductor 13. The optical module L is preferably constructed as a light-emitting diode optical module and is optically coupled to the light conductor 13 in a manner not shown in detail.

[0040] As in Figure 3As can be seen, the impinging light beam L1 is output from the light conductor 13 in the direction of the light sheet 12 via an output structure 13a on the back side of the light conductor 13 and escapes in the direction of the interior of the motor vehicle K through the light sheet 12 (cf. light beam L2).

[0041] Determined by the reduced thickness d2 in the edge-side portion 12b of the light sheet 12, the output light beam L3 has to cover only a shorter path. This can result in a brightening in the region of the clear distance a, i.e. a so-called light spot is configured. This is not desired.

[0042] For this reason, the surface O1 of the edge-side portion 12b of the light sheet 12 is provided with a region 15 of reduced light permeability.

[0043] The region 15 of reduced light permeability has a light permeability which is preferably between approximately 0% and approximately 90% of the light permeability of the first portion 12a of the light sheet 12. The light permeability of the region 15 is particularly preferably between approximately 0% and approximately 75% of the light permeability of the first portion 12a of the light sheet 12.

[0044] In this way, it is achieved that the escape of light of the output light beam L3 in the region of the clear distance a is prevented or at least made significantly more difficult.

[0045] Thus, despite the reduced thickness d2 of the edge-side portion 12b of the light sheet 12 in the region of the clear distance a, the occurrence of a light spot can be counteracted.

[0046] In this embodiment, the region 15 of lower light permeability is formed by a (preferably correspondingly thin) film or coating.

[0047] The edge-side portion 12b of the light sheet 12 preferably has a planar surface O1. Thereby, the application of the film or coating can be simplified.

[0048] It is also conceivable, differently from this embodiment, that the region 15 of lower light permeability is formed by a second material component which is injection-moulded at the light sheet 12. It is also conceivable that the edge-side portion 12b is configured at least in the region of the clear distance a as a material component with lower light permeability (cf. also Figure 3 ).

[0049] Furthermore, it is possible in accordance with Figure 3 and Figure 4 It can be seen that the light conductor 13 is held on the back side at the trough-like member 14 which in turn is held on the back side 100a or 100b of the portions 10a, 10b of the inner lining panel 10.

[0050] The light conductor 13 and the light sheet 12 are held by means of the channel-like member 14 in such a way that the light sheet 12 projects with its first portion 12a into the opening 11.

[0051] Here, the light sheet 12 is held by means of the channel-like member 14 in the opening 11 preferably in such a way that the surface O3 of the free end portion 12c of the light sheet 12 ends approximately flush with the surfaces O4 and O5 of the portions 10a and 10b of the inner lining 10 which surround the opening 11.

[0052] According to Figure 4 It can be seen that the first portion 12a of the light sheet 12 which projects into the opening 11 tapers in cross section in the direction of the free end portion 12c. The tapering preferably takes place conically in the direction of the free end portion 12c.

[0053] Thereby, it is facilitated that the light sheet 12 with its first portion 12a comes into contact with the edge of the opening 11 along the longitudinal extension I of the opening 11 (cf. Figure 2 ), i.e. along its longitudinal sides. Thus, it can be effectively prevented that the edge side portion 12b of the light sheet 12 is freely visible at least along the longitudinal sides of the light sheet 12.

[0054] However, if the opening 11 has a larger longitudinal extension I and thus tolerances in the longitudinal direction play a stronger role, this is not reliable in the longitudinal direction I. Thereby, the above-mentioned clear distance a is thus configured at the end E of the longitudinal sides of the light sheet 12 at which there is according to the application a region with reduced light permeability.

[0055] List of reference signs

[0056] 10 inner lining

[0057] 10a first portion of the inner lining

[0058] 10b second portion of the inner lining

[0059] 11 opening

[0060] 12 light sheet

[0061] 12a first portion of the light sheet

[0062] 12b edge side portion of the light sheet

[0063] 12c free end portion of the light sheet

[0064] 13 light conductor

[0065] 13a output structure

[0066] 14 channel-like member

[0067] 15 region with lower light permeability

[0068] 100a back side

[0069] 100b back side

[0070] a net distance

[0071] b width

[0072] d1, d2 thickness

[0073] E end

[0074] K motor vehicle

[0075] l longitudinal extension

[0076] L light module

[0077] L1-L3 light beam

[0078] O1-O5 surface.

Claims

1. A lining panel (10; 10a, 10b) for a motor vehicle (K), wherein In the inner lining panel (10) an opening (11) is configured, and a first portion (12a) of a light-transmissive light sheet (12) projects into the opening (11), wherein the first portion (12a) substantially fills the contour of the opening (11), wherein at the back side of the light sheet (12) a light conductor (13) is arranged, through which at least one light-emitting device can be guided and output in the direction of the light sheet (12), wherein a second portion (12b) of the edge side of the light sheet (12) serves to lie against at the back side (100a, 100b) of the inner lining panel (10; 10a, 10b), and the second portion (12b) of the edge side has a smaller thickness (d2) than the first portion (12a) of the light sheet (12) that projects into the opening (11) of the inner lining panel (10; 10a, 10b), wherein at least locally between the first portion (12a) of the light sheet (12) that projects into the opening (11) and the inner lining panel (10; 10a, 10b) a clear distance (a) is configured, characterized in that the second portion (12b) of the edge side of the light sheet (12) has at least in the region of the clear distance (a) a region (15) that has a reduced light transmissivity relative to the first portion (12a) of the light sheet (12), and which region fills the clear distance (a) when viewed in a top view of the contour of the opening (11), wherein the clear distance (a) is configured at the end (E) of the longitudinal side of the light sheet (12), and wherein the first portion (12a) of the light sheet (12) that projects into the opening (11) tapers in cross section in the direction of the free end (12c) so that the light sheet (12) with its first portion (12a) comes into contact with the edge of the opening (11) along the longitudinal extension (1) thereof, i.e. along its longitudinal side.

2. The inner lining panel (10; 10a, 10b) according to claim 1, characterized in that The region (15) of reduced light transmissivity has a light transmissivity that is between 0% and 90% of the light transmissivity of the first portion (12a) of the light sheet (12).

3. The inner lining panel (10; 10a, 10b) according to claim 1 or 2, characterized in that The region (15) of reduced light transmissivity is formed by a coating.

4. The inner lining panel (10; 10a, 10b) according to claim 1 or 2, characterized in that The region (15) of reduced light transmissivity is formed by a film.

5. The inner lining panel (10; 10a, 10b) according to claim 1 or 2, characterized in that The region (15) of reduced light transmissivity is formed by at least one second material component of the light sheet (12).

6. The inner lining panel (10; 10a, 10b) according to claim 1 or 2, characterized in that The region (15) of reduced light transmissivity is black.

7. The inner lining panel (10; 10a, 10b) according to claim 1 or 2, characterized in that The second portion (12b) of the edge side of the light sheet (12) has a flat surface (01) that faces the inner lining panel (10; 10a, 10b).

8. The inner lining panel (10; 10a, 10b) according to claim 1 or 2, characterized in that The back side of the light sheet (12) is formed by a flat surface (02).

9. The inner lining panel (10; 10a, 10b) according to claim 1, characterized in that The region (15) of reduced light transmissivity has a light transmissivity that is between 0% and 75% of the light transmissivity of the first portion (12a) of the light sheet (12).

10. Motor vehicle (K) having at least one inner lining panel (10; 10a, 10b) according to any one of the preceding claims.

Images