Patent ID: 6827799
Filing Date: 2004-12-07
Classification: B29C,B29K,B29L,B60R,Y10T

Abstract:
A method of producing weakened zones in a plastic trim part, comprising providing the plastic trim part with a carrier layer and a decorative layer, by inserting the decorative layer into a foaming tool and coating the decorative layer with a foam layer, backing the decorative layer with a carrier layer of expanded poly propylene so that the decorative layer attaches to the carrier layer by means of the foam layer; each of said carrier layer and foam layer having a thickness dimension, subsequently bringing an ultra sound cutting device in contact with the carrier layer and the foam layer thereby cutting into the carrier layer and the foam layer and producing a cut with a width dimension of up to 1 mm through the entire thickness of the carrier layer and the foam layer and extending along a longitudinal extension thereof.