Vehicle trim part with lighting function

Patent metadata

Field	Value
Publication number	US-12472867-B2
Application number	US-202418750085-A
Country	US
Kind code	B2
Filing date	Jun 21, 2024
Priority date	Jul 21, 2023
Publication date	Nov 18, 2025
Grant date	Nov 18, 2025

Abstract

A vehicle trim part with a lighting function can comprise an at least partially light transmitting cover layer and a light emitting light system for at least partially emitting light towards the cover layer. A carrier can be arranged between the light emitting light system and the cover layer. The carrier can comprise a plurality of recesses and a plurality of through holes, each being arranged on a surface of the carrier facing the cover layer and open towards the cover layer, and wherein the plurality of recesses are closed towards the light emitting light system and the plurality of through holes being open towards the light emitting light system.

First claim

What is claimed is:

1 . A vehicle trim part with lighting function, the vehicle trim part comprising:
an at least partially light transmitting cover layer; a light emitting light system for at least partially emitting light towards the cover layer; and a carrier arranged between the light emitting light system and the cover layer, wherein the carrier comprises a plurality of recesses and a plurality of through holes, each being arranged on a surface of the carrier facing the cover layer and open towards the cover layer, and wherein the plurality of recesses are closed towards the light emitting light system and the plurality of through holes being open towards the light emitting light system.

2 . The vehicle trim part according to claim 1 , wherein at least one of: 1) the cover layer is a substantially resilient cover layer and the carrier is a substantially rigid carrier in comparison thereto, 2) wherein the cover layer is arranged adjacently to the carrier and covers the plurality of through holes and the plurality of recesses, or 3) wherein the cover layer has one or more depressions at least on a surface of the cover layer facing away from the carrier, and wherein the one or more depressions are arranged in a region including the plurality of through holes and the plurality of recesses.

3 . The vehicle trim part according to claim 1 , wherein at least one of: 1) the carrier is an at least partially reflective carrier which at least partially comprises a reflective material, or 2) wherein the carrier is at least partially a substantially opaque carrier.

4 . The vehicle trim part according to claim 1 , further comprising:
a reflector which, viewed from the cover layer, is arranged behind the light emitting light system, at least partially comprises a reflective material and is configured to reflect light emitted by the light emitting light system at least partially towards at least one of the cover layer or the carrier, wherein the reflector has a higher rigidity than the carrier.

5 . The vehicle trim part according to claim 4 , wherein the reflector has a higher flexural strength than the carrier.

6 . The vehicle trim part according to claim 4 , wherein an open space is formed between at least one of: 1) the light emitting light system and the carrier or 2) the light emitting light system and the reflector, at least in a region of the plurality of through holes, in which space light emitted by the light emitting light system propagates substantially unhindered.

7 . The vehicle trim part according to claim 6 , wherein at least one of the plurality of through holes or the open space are filled with a filler, wherein the filler at least one of has a strength greater than or equal to the strength of the carrier or has a refractive index of >1.

8 . The vehicle trim part according to claim 7 , wherein the filler is a transparent filler.

9 . The vehicle trim part according to claim 1 , wherein a smallest distance between two through holes on the surface of the carrier facing the cover layer is smaller than a thickness of the cover layer in a region of the plurality of through holes.

10 . The vehicle trim part according to claim 1 , wherein the through holes are tapered towards the cover layer.

11 . The vehicle trim part according to claim 1 , wherein the plurality of through holes and the plurality of recesses are at least one of: 1) partially substantially uniform, 2) have a same size, 3) are arranged in a substantially regular pattern, or 4) are equidistant from an adjacent through hole or an adjacent recess, at least on the surface of the carrier facing the cover layer.

12 . The vehicle trim part according to claim 1 , wherein the carrier comprises at least one of polypropylene (PP), a blend of polycarbonate/acrylonitrile butadiene styrene (PC ABS), polycarbonate (PC), or natural fiber-reinforced polypropylene (NFPP).

13 . The vehicle trim part according to claim 1 , wherein the cover layer is translucent.

14 . A vehicle trim part with lighting function, the vehicle trim part comprising:
an at least partially light transmitting cover layer; a light emitting light system for at least partially emitting light towards the cover layer; and a carrier arranged between the light emitting light system and the cover layer, wherein the carrier comprises a plurality of recesses and a plurality of through holes, each being arranged on a surface of the carrier facing the cover layer and open towards the cover layer, and wherein the plurality of recesses are closed towards the light emitting light system and the plurality of through holes are open towards the light emitting light system; a reflector that, viewed from the cover layer, is arranged behind the light emitting light system, at least partially comprises a reflective material and is configured to reflect light emitted by the light emitting light system at least partially towards at least one of the cover layer or the carrier, wherein the reflector has a higher rigidity than the carrier; and wherein an open space is formed between each of: 1) the light emitting light system and the carrier or 2) the light emitting light system and the reflector, at least in a region of the plurality of through holes, in which open space light emitted by the light emitting light system propagates substantially unhindered.

15 . The vehicle trim part according to claim 14 , wherein at least one of the plurality of through holes or the open space are filled with a filler, wherein the filler at least one of has a strength greater than or equal to the strength of the carrier or has a refractive index of >1.

16 . The vehicle trim part according to claim 15 , wherein the filler is a transparent filler.

17 . The vehicle trim part with lighting function according to claim 14 , wherein the through holes are tapered towards the cover layer.

Assignees

• Faurecia Innenraum Systeme Gmbh
• Hella Gmbh & Co Kgaa

Inventors

• Musy Maxime
• Schöne Heiko

Classifications

• B60Q3/54 Primary

  Lighting devices embedded in interior trim, e.g. in roof liners · CPC title

• G02B6/0088

  of the light guide or other optical sheets in the package · CPC title

• G02B6/005

  provided by one optical element, or plurality thereof, placed on the light output side of the light guide · CPC title

• B60R2013/0281

  made of a plurality of visible parts · CPC title

• B60R13/02

  {Internal} Trim mouldings {; Internal} Ledges; Wall liners {for passenger compartments}; Roof liners (B60R13/01 takes precedence {; padded linings for the vehicle interior B60R21/04; arrangements or adaptations of floor mats or carpets in vehicles B60N3/04; internal lining for trains B61D17/18}) · CPC title