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US 6,672,650 B2Granted
Plastic panel with integrally molded speaker grille
AssigneePatent Holding Company
InventorLarry J. Winget
Life of this patent
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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.
Claims24
A vehicle door panel comprising:
- a plastic door panel body;
- and
- a speaker grille integrally injection molded with the plastic door panel body, said speaker grille having a plurality of sound passages formed therethrough from a front surface to a rear surface, and having a cross-hatched upstanding rib pattern extending from the rear surface, wherein said sound passages are formed by a labyrinth pattern of adjoined wall segments having a thickness (t) less than one-half the width (wh) of each sound passage to provide structural integrity and sound quality without vibrations.
A vehicle panel comprising:
- a plastic panel body;
- and
- a speaker grille integrally injection molded with the plastic panel body, said speaker grille having a plurality of sound passages formed therethrough from a front surface to a rear surface, and having a cross-hatched upstanding rib pattern extending from the rear surface, wherein said sound passages are formed by a labyrinth pattern of adjoined wall segments having a thickness (t) less than one-half the width (wh) of each sound passage to provide structural integrity and sound quality without vibrations.
A vehicle plastic panel comprising:
- a plastic panel body;
- a speaker grille integrally injection molded with the plastic panel body, said speaker grille having a plurality of sound passages formed therethrough from a front surface to a rear surface, and having a cross-hatched upstanding rib pattern extending from the rear surface;
- wherein said speaker grille forms less than approximately 15% of the surface area of the plastic panel body, and each rib of said upstanding rib pattern comprises a rib thickness between approximately 0.5 mm and 1.0 mm;
- wherein said sound passages are formed by a labyrinth pattern of adjoined wall segments having a thickness (t) less than one-half the width (wh) of each sound passage to provide structural integrity and sound quality without vibrations;
- wherein each rib of said upstanding rib pattern comprises a rib thickness (rt) which is approximately one-half the thickness of the speaker grille;
- and
- wherein said rib thickness (rt) is substantially equal to said thickness (t) of each wall segment.
4 more elements
Dependencies are inferred from the claim text.