Quantcast

Plastic panel with integrally molded speaker grille

Imported: 24 Feb '17 | Published: 06 Jan '04

Larry J. Winget

USPTO - Utility Patents

Abstract

A vehicle plastic panel includes a plastic panel body and a speaker grille integrally injection molded with a plastic panel body. The speaker grille has a plurality of sound passages formed therethrough from a front surface to a rear surface, and has a cross-hatched upstanding rib pattern extending from the rear surface.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a plan view of an injection molded plastic door panel in accordance with the present invention;

FIG. 2 shows an enlarged partially cut-away view of the door panel of FIG. 1;

FIG. 3 shows a partially cut-away, further enlarged view of the speaker grille portion of the plastic door panel of FIG. 2;

FIG. 4 shows a cut-away rear plan view of the speaker grille portion of FIG. 3; and

FIG. 5 shows a sectional view taken at line

5

5 of FIG.

4.

Claims

1. A vehicle door panel comprising:

2. The vehicle door panel of claim 1, wherein said thickness (t) is approximately 1 mm and said width (w

h) is approximately 2.5 mm.

3. The vehicle door panel of claim 1, wherein said cross-hatched upstanding rib pattern forms a plurality of enmeshed diamond shapes.

4. The vehicle door panel of claim 3, wherein said plurality of enmeshed diamond shapes facilitates and enhances mold-filling and increases cross-sectional flow area flow of molten plastic across the speaker grille as the molten plastic is injected into and fills a speaker grille-forming portion of a mold cavity to prevent short shots and trapped gas.

5. The vehicle door panel of claim 1, wherein said speaker grille forms less than approximately 15% of the surface area of the plastic door panel body.

6. The vehicle door panel of claim 1, further comprising a round rim protruding from the rear surface and circumscribing the speaker grille.

7. The vehicle door panel of claim 1, wherein each rib of said upstanding rib pattern comprises a rib thickness (r

t) which is approximately one-half the thickness of the speaker grille.

8. The vehicle door panel of claim 7, wherein said rib thickness (r

t) is substantially equal to said thickness (t) of each wall segment.

9. The vehicle door panel of claim 7, wherein said rib thickness (r

t) is approximately 0.75 mm and said thickness of the speaker grille is approximately 2 mm.

10. The vehicle door panel of claim 9, wherein each said rib is approximately 3 mm in height.

11. The vehicle door panel of claim 7, wherein said rib thickness is between approximately 0.5 mm and 1.0 mm, and the height of each rib is between approximately 2.5 mm and 3.5 mm.

12. A vehicle panel comprising:

13. The vehicle panel of claim 12, wherein said thickness (t) is approximately 1 mm and said width (w

h) is approximately 2.5 mm.

14. The vehicle panel of claim 12, wherein said cross-hatched upstanding rib pattern forms a plurality of enmeshed diamond shapes.

15. The vehicle panel of claim 14, wherein said plurality of enmeshed diamond shapes facilitates and enhances mold-filling and increases cross-sectional flow area flow of molten plastic across the speaker grille as the molten plastic is injected into and fills a speaker grille-forming portion of a mold cavity to prevent short shots and trapped gas.

16. The vehicle panel of claim 12, wherein said speaker grille forms less than approximately 15% of the surface area of the plastic panel body.

17. The vehicle panel of claim 12, further comprising a round rim protruding from the rear surface and circumscribing the speaker grille.

18. The vehicle panel of claim 12, wherein each rib of said upstanding rib pattern comprises a rib thickness (r

t) which is approximately one-half the thickness of the speaker grille.

19. The vehicle panel of claim 18, wherein said rib thickness (r

t) is substantially equal to said thickness (t) of each wall segment.

20. The vehicle panel of claim 18, wherein said rib thickness (r

t) is approximately 0.75 mm and said thickness of the speaker grille is approximately 2 mm.

21. The vehicle panel of claim 20, wherein each said rib is approximately 3 mm in height.

22. The vehicle panel of claim 18, wherein said rib thickness is between approximately 0.5 mm and 1.0 mm, and the height of each rib is between approximately 2.5 mm and 3.5 mm.

23. A vehicle plastic panel comprising:

24. The vehicle panel of claim 23 wherein said panel comprises a door panel.