Method for forming plastic molded panels with inserts

Details Method for forming plastic molded panels with inserts Method for forming plastic molded panels with inserts

1990-05-02

1992-02-25

Silbaugh, Jan H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156212, 156245, 156257, 156267, 156268, 1563084, 264 468, 264139, 264511, B29C 5110, B29C 5112, B29C 65102

Patent

active

050910310

ABSTRACT:
Plastic panels which are useful as automotive interior trim panels, interior door panels and the like decorative and structural panels, are made by a method which integrates insert sections in the surfaces of the panels and eliminates insert edge trim molding strips. The method includes bonding at least the edge portions of the inserts upon a thin plastic sheet, pre-sized blank, then removing the plastic sheet portions that overlap the insert within the bonded portions; next, positioning the blank in a mold against a mold face and molding in situ and simultaneously bonding a plastic substrate against the blank and the exposed surface of the insert. A substantially continuous, channel forming means, such as a narrow rib or a groove, on the mold face, is overlapped by the bonded insert edge portions and sheet portion, which are folded by said means to form a narrow, relatively deep channel. The insert edges are part of and, consequently, are concealed within the channel. The channel forms an edging around the insert in the completed panel surface. Thus, the composite sheet and insert forms an exposed, decorative surface on the molded plastic panel.

REFERENCES:
patent: 2744564 (1956-05-01), Woodburn
patent: 3080267 (1963-03-01), Schmalz
patent: 3546841 (1970-12-01), Smith et al.
patent: 3647587 (1972-03-01), MacDonald
patent: 3996088 (1976-12-01), Crouch
patent: 4793884 (1988-12-01), Horikiri

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