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Method of fabricating an interior trim foam product

  • US 4,839,118 A
  • Filed: 08/10/1988
  • Issued: 06/13/1989
  • Est. Priority Date: 04/20/1987
  • Status: Expired due to Fees
First Claim
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1. A method for fabricating a vehicle interior trim component having a flexible outer shell and an insert which forms an integral back on the trim component comprising the steps of:

  • providing a mold cavity part having a support surface thereon;

    providing a mold cover and tool insert means operatively associated to close the mold cavity part;

    providing an shell of flexible material having a raw peripheral edge thereon and supporting the shell by positioning the outer surface thereof on the support surface of the mold cavity part while spacing the raw peripheral edge from the mold cavity part to form a foam space;

    providing a multisided, generally planar insert with a continuous peripheral edge, an inner and outer surface, and an integral flange directed perpendicularly to the outer surface and formed in spaced parallelism inside the peripheral edge around the perimeter thereof to define side flanges and end flanges on the insert having lengths corresponding to that of the raw peripheral edge;

    locating the insert within the foam space to form a gap between the raw peripheral edge and the outer surface of the insert while locating the integral flange outside of the foam space and inboard of the raw peripheral edge;

    directing foam precursors into the foam space and the gap and reacting them therein so as to form a foam core in the foam space and the gap and to bond the inner surface of the insert and the shell to the core;

    providing a post forming die;

    removing the foamed shell and insert from the mold cavity part and supporting the outer surface of the shell against the post forming die to locate the integral flange in an upwardly facing direction;

    thereafter applying a force against the integral flange to cause it to bend about ninety degrees to overlie the raw peripheral edge for holding the raw edge in place while covering both the raw peripheral edge and the gap formed between the raw peripheral edge and the insert.

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