Method of making a covered article by vacuum drawing

Details Method of making a covered article by vacuum drawing Method of making a covered article by vacuum drawing

1994-01-24

1996-01-30

Johnstone, Adrienne C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156212, 156214, 156216, 156285, 180 90, 264511, 280752, 296 70, B32B 3104, B32B 3112, B32B 3120

Patent

active

054878004

ABSTRACT:
A covered article such as an automotive trim panel comprises a substrate having a front surface to be covered, a back surface and a plurality of holes extending through it for vacuum drawing a trim cover stock against the front surface. The substrate has sets of parallel saw-tooth holder grooves in a peripheral margin of the back surface adjacent to an edge of the substrate that is to be wrapped by the trim cover stock and transverse manifold grooves that communicate with the holder grooves. An adhesive is applied to the front surface and the peripheral margin and the substrate is supported on a vacuum buck so that the peripheral margin overhangs the buck and the manifold grooves communicate with a vacuum source of the buck. The trim cover stock is drawn against the front surface of the substrate and a marginal portion of the trim cover stock is simultaneously drawn against the peripheral margin of the back surface by vacuum to wrap the trim cover stock around the edge of the substrate. The marginal portion of the trim cover stock is drawn into the bottom of the holder grooves to provide a mechanical interlock between the marginal portion of the trim cover stock and sharp edges of the saw-tooth holder grooves. Alternate substrates have a porous strip of various cross sections.

REFERENCES:
patent: 2766808 (1956-10-01), Kleiber et al.
patent: 3202561 (1965-08-01), Swanson et al.
patent: 4692199 (1987-09-01), Kozlowski et al.
patent: 4986865 (1991-01-01), Fujii

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