Molded panel and method of manufacture

• US 20080080204A1
• Filed: 06/23/2006
• Published: 04/03/2008
• Est. Priority Date: 06/23/2006
• Status: Abandoned Application

• Current Assignee: Faurecia Interior Systems
• Original Assignee: Faurecia Interior Systems
• Inventors: Prevost, Thomas, Baudon, Dimitri
• Application Number:
  US11/474,194
• Publication Number:
  US 20080080204A1
• Time in Patent Office: Days
• US Class Current: 362/551
• CPC Class Codes: B29C 39/021 by casting in several steps
• CPC Class Codes: B29C 39/10 incorporating preformed parts or layers, e.g. casting around inserts or for coating articles coating a surface by casting in general B05D1/30, B29C39/126 takes precedence
• CPC Class Codes: B29K 2995/0018 having particular optical properties, e.g. fluorescent or phosphorescent
• CPC Class Codes: B29L 2011/00 Optical elements, e.g. lenses, prisms
• CPC Class Codes: B60K 2360/33 Illumination features
• CPC Class Codes: B60K 35/60 Instruments characterised by their location or relative disposition in or on vehicles arrangements of lighting devices on dashboards B60Q3/10
• CPC Class Codes: B60Q 3/14 lighting through the surface to be illuminated
• CPC Class Codes: B60Q 3/54 Lighting devices embedded in interior trim, e.g. in roof liners
• CPC Class Codes: B60Q 3/745 using lighting panels or mats, e.g. electro-luminescent panels, LED mats
• CPC Class Codes: B60Y 2410/12 Production or manufacturing of vehicle parts

Abstract

A method is provided for forming a generally opaque panel with integral translucent areas. An opaque first liquid material is introduced onto the surface of a translucent film provided in a molding tool, and the first material, when cured, bonds to an area on the surface of the film. A translucent second liquid material is then introduced onto the translucent film in a second area, other than the one area. The surface of the translucent film to which the liquid materials have been introduced then becomes the interior surface of the panel. The resulting panel has a translucent front layer and, on its rear surface, an opaque material and a translucent material are formed into difference sections on a single layer.

Claims

1. A method for manufacturing a panel, said panel being generally opaque but having at least one translucent area, said method comprising the steps of:

introducing a first liquid material onto a surface of a translucent film disposed in a molding tool, said first liquid material being constituted to bond to a first area of the surface of said translucent film; and

introducing a second liquid material onto an area on the surface of the translucent film other than the first area, said second liquid material being constituted to bond to the area on the surface of said translucent film to which it is introduced;

one of said first and second liquid materials being opaque and the other being translucent.

2. The method of claim 1 wherein one of the liquid materials is constituted to require curing in order to bond to its respective area of said translucent film.

3. The method of claim 1, wherein the opaque material is PCABS.

4. The method of claim 1, wherein the translucent material is polycarbonate.

5. The method of claim 1, further comprising the step of printing a finish on a surface of said translucent film prior to the placing step.

6. The method of claim 1 wherein the introducing steps are performed so that said first and second materials comprise a single layer on said film.

7. The method of claim 6, further comprising the steps of:

inserting at least one separator into the molding tool before the step of introducing said first liquid material so as to prevent said first liquid material from contacting a predefined area on the surface of said translucent film; and

removing said at least one separator from the molding tool after said first liquid material is introduced.

8. The method of claim 7 wherein the first liquid materials is constituted to require curing in order to bond to its respective area of said translucent film, the at least one separator, being removed after said first liquid material is cured.

9. The method of claim 7 wherein the introducing steps are performed so that said first and second materials comprise a single layer on said film.

10. The method of claim 1, further comprising the steps of:

inserting at least one separator into the molding tool before the step of introducing said first liquid material so as to prevent said first liquid material from contacting a predefined area on the surface of said translucent film; and

removing said at least one separator from the molding tool after said first liquid material is introduced.

11. The method of claim 10 wherein the first liquid materials is constituted to require curing in order to bond to its respective area of said translucent film, the at least one separator, being removed after said first liquid material is cured.

12. The method of claim 10 wherein the introducing steps are performed so that said first and second materials comprise a single layer on said film.

13. A method for manufacturing an illuminated panel, comprising the steps of:

placing one of an electroluminescent film and a fiber optic web on a translucent film in a molding tool, said translucent film being shaped to conform to at least one surface of said illuminated panel; and

forming an opaque material onto the translucent film in the molding tool so that said opaque material bonds to said translucent film and also bonds to said one of an electroluminescent film and a fiber optic web.

14. The method of claim 13 wherein said forming step is injection molding.

15. The method of claim 13 wherein the opaque materials is constituted to require curing in order to bond to said translucent film, or said one of an electroluminescent film and a fiber optic web.

16. The method of claim 13, further comprising, before said forming step, introducing a reflective layer on said one of an electroluminescent film and a fiber optic web, said opaque material bonds to said reflective layer.

17. A method for manufacturing an illuminated panel component, comprising the steps of:

placing an LED module onto a translucent film in a molding tool, said translucent film being shaped to conform to at least one surface of said illuminated panel; and

forming a material onto the translucent film in the molding tool so that said material bonds to a surface of said translucent film and to the LED module.

18. The method of claim 17 wherein said forming step is injection molding.

19. The method of claim 17 wherein the opaque materials is constituted to require curing in order to bond to said translucent film or said LED module.

20. The method of claim 17, further comprising, before said forming step, placing an induction module onto the translucent film and connecting it to power the LED module.

21. A panel which is generally opaque but has at least one translucent area, said comprising:

a translucent film;

a first material bonded to a first area on a rear surface of said translucent film; and

a second material bonded to an area on the rear surface of said translucent film other than the first area, the second material being on a common layer with the first material;

one of said first and second materials being opaque and the other being translucent.

22. The panel of claim 21 wherein the opaque material is PCABS.

23. The panel of claim 21 wherein the translucent material is polycarbonate.

24. The panel of claim 21 wherein a surface of the translucent film has a surface finish formed thereon.

25. An illuminated panel, comprising:

a translucent film;

one of an electroluminescent film and a fiber optic web disposed on the translucent film;

an opaque material bonded to said translucent film and said one of an electroluminescent film and a fiber optic web.

26. The panel of claim 25, further comprising a reflective layer interposed between. said opaque material and said one of an electroluminescent film and a fiber optic web, said opaque material bonding to said reflective layer.

27. The panel of claim 25 wherein the opaque material is PCABS.

28. The panel of claim 25 wherein the translucent material is polycarbonate.

29. The panel of claim 25 wherein a surface of the translucent film has a surface finish formed thereon.

30. The panel of claim 29 wherein said surface finish omitted in an area on said translucent film to define a window therein.