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US 6,887,413 B1Granted
Process for manufacturing a covering or trim part with a directly molded on carrier
AssigneeDaimlerChrysler AG
InventorRolf Schumacher
Life of this patent
Estimating the term…
Abstract
A covering or trim part includes an injection molding compound and a decor part durably connected with the molding compound. The decor part may contain a real-wood veneer as well as a metal part. The covering a trim part is made by combining an injection molding operation with a cutting operation of the decor part in the injection. A multi-part injection mold permits more complicated molding and undercutting and/or the forming of variable wall thicknesses.
Claims9
A method for making a covering or trim part with a directly molded-on carrier, comprising:
- placing a decorative part having a veneer wood layer or sheet metal part in an at least two-part injection mold;
- closing the mold, thereby moving a cutting edge provided on a first part of the mold past an inside wall area of a second part of the mold and thereby cutting the decorative part to a precise shape by shearing off an outer edge of the decorative part while simultaneously pushing the decorative part in front of the cutting edge to an interior bottom surface of the second part of the mold, providing sealing between the cutting edge and a front edge of the decorative part formed by shearing off said outer edge, and defining at least part of a mold cavity between the first part of the mold and the decorative part;
- injecting molding compound into the mold cavity after cutting the decorative part, which upon curing permanently bonds to the decorative part;
- opening the mold;
- and
- removing the covering or trim part and molded-on carrier from the mold.
3 more elements
Dependencies are inferred from the claim text.