Method of forming decorative trim strips

Details Method of forming decorative trim strips Method of forming decorative trim strips

B - Operations, Transporting

29

C

B29C 45/14 (2006.01) B29C 67/00 (2006.01) B29C 70/68 (2006.01) B29C 70/76 (2006.01) B29C 47/00 (2006.01)

Patent

CA 2078394

A method of forming an elongated decorative trim strip of thermoplastic material with an end of the strip having a desired shape of non-constant cross-section in planes perpendicular to the longitudinal axis of the strip comprises providing an extruded length of thermoplastic material of a length substantially equal to the desired length of the decorative trim strip with a first longitudinally extending surface of the length being a front show face and a second longitudinally extending surface opposite the first surface being a back mounting surface. At an end portion of the extruded length, material is removed inwardly from the second surface to create a cavity behind the first surface while leaving the show face general undisturbed. Thereafter, the end portion of the extruded length with the cavity formed therein is enclosed in a mold chamber with an interior surface having the desired end shape and thermoplastic material is injected into the formed cavity to fill the cavity and force the show face of the enclosed end portion into engagement with the interior surface of the mold.

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