IP Library › Granted Patent US 11,285,869
Granted Patent B2
US 11,285,869 · App. 16/752,951 · Granted Mar 29, 2022

Decorative part

Inventors: Thomas Abel (Ludenscheid, DE); Frank Huhnerbein (Sachsenheim, DE); Ann-Kathrin Diehl (Stuttgart, DE); Steffen Daschner (Kraichtal, DE)
Assignee: Joysonquin Automotive Systems GMBH
B60Q3/74B60Q3/54F21V7/0091F21V7/04
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Quick Facts
Patent No.
US 11,285,869
App. No.
16/752,951
Granted
Mar 29, 2022
Kind
B2
Abstract

A decorative part, in particular for a vehicle interior, having a decorative layer with a visible front surface, a support on a reverse side of the decorative layer and a light-conducting layer provided between the support and the decorative layer for backlighting at least part of the decorative layer, which is assigned a light-conducting element for generating light. For more uniform backlighting of the decorative layer, a light-conducting dome is provided on a reverse side of the light-conducting layer facing away from the decorative layer, which protrudes therefrom and is coupled in a light-conducting manner to the light-conducting layer and at its free end to the light element.

Claims (46)

1. A decorative part with backlighting for a vehicle interior, comprising:

a decorative layer with a visible front surface;

a light-conducting layer having a first translucency entirely provided on a reverse side of the decorative layer for backlighting the decorative layer uniformly;

a support sandwiching the light-conducting layer between the decorative layer and the support;

a light generating element that is coupled in a light conducting manner to a free end of a light-conducting dome which protrudes from the reverse side of the light-conducting layer and which is coupled in a light conducting manner to the light-conducting layer; and

a shading element placed between the light-conducting dome and the decorative layer, the shading element being rotationally symmetrical and having a second translucency worse than the first translucency of the light-conducting layer,

whereby the light generating element provides uniform backlighting to the decorative layer through the light-conducting layer and the shading element.

2. A decorative part according to claim 1 , wherein:

the light-conducting dome and the light-conducting layer are configured identically to the material and/or in one piece.

3. A decorative part according to claim 1 , wherein:

the light-conducting dome has a funnel section formed rotationally symmetrically with respect to its central longitudinal axis.

4. A decorative part according to claim 3 , wherein:

the funnel portion is configured as a light conductor leading to the light-conducting layer.

5. A decorative part according to claim 3 , wherein:

the funnel section forms at least one reflector.

6. A decorative part according to claim 5 , wherein:

the reflector comprises at least one reflector surface which reflects the light radiated by the light-conducting dome.

7. A decorative part according to claim 1 , wherein:

the shading element is configured as an independent element.

8. A decorative part according to claim 1 , wherein:

the light-conducting dome projects through the support.

9. A decorative part according to claim 8 , wherein:

the light-conducting dome projects through a reflector foil provided on the reverse side of the light-conducting layer.

10. A decorative part according to claim 1 , wherein:

the light-conducting dome projects through a reflector foil provided on the reverse side of the light-conducting layer.

11. A decorative part according to claim 1 , wherein:

the shading element has a different translucency than the light-conducting dome.

12. A decorative part according to claim 1 , wherein:

the decorative layer has a decorative appearance provided by a single or multilayer decorative layer formed of at least one of the materials textile, wood, plastic, or metal.

13. A decorative part according to claim 1 , wherein:

the support comprises at least one fastening element protruding from a reverse side of the decorative part for fastening the decorative part to a chassis of a vehicle.

14. A decorative part according to claim 1 , further comprising:

a plurality of bores distributed circumferentially around said shade element, each of the plurality of bores ending in a funnel shape towards said decorative layer.

15. A decorative part for providing uniform backlighting comprising:

a decorative layer having a viewable front side and a backside;

a light-conducting layer placed adjacent the backside of said decorative layer without extending through said decorative layer, whereby said light-conducting layer is capable of uniformly backlighting the viewable front side of said decorative layer;

a light-conducting dome formed in said light-conducting layer, said light-conducting dome having a column segment with a distal end and a funnel section;

a shading element placed in said funnel section, said shading element having a worse translucency than said light conducting dome and a plurality of bores distributed circumferentially around said shade element, each of the plurality of bores ending in a funnel shape towards said decorative layer configured to scatter light on a front surface of said shading element and a plurality of reflectors configured to reflect light from the column segment along said light-conducting layer; and

a light element placed on the distal end of the column segment,

whereby light from said light element can travel through the column segment and the funnel section to the light-conducting layer uniformly backlighting said decorative layer.

16. A decorative part for providing uniform backlighting as in claim 15 wherein:

said decorative layer is selected from the group consisting of textile, wood, plastic, and metal.

17. A decorative part for providing uniform backlighting as in claim 15 further comprising:

a rear cover attached to the decorative part; and

a fastening pin attached to said rear cover,

whereby the rear cover is capable of being attached to a chassis of a motor vehicle.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 16, 2020
From: ABEL, THOMAS; HUHNERBEIN, FRANK; DIEHL, ANN-KATHRIN; DASCHNER, STEFFEN
To: JOYSONQUIN AUTOMOTIVE SYSTEMS GMBH
Reel/Frame 052947/0748 →
Priority Claims (1)
DE 102019201346.5 · Feb 1, 2019 · national
Continuity (1)
Related Publication 20200247314A1 · Aug 6, 2020