Apparatus for bonding a cover material to foam

Details Apparatus for bonding a cover material to foam Apparatus for bonding a cover material to foam

1997-01-28

1999-12-21

Aftergut, Jeff H.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With work cooling means

156497, 156580, 156475, 156212, B32B 3100, B65C 100

Patent

active

06003579&

ABSTRACT:
A method and apparatus for bonding a cover (22) over an undulating surface of a foam cushion (10) by placing the cover, an adhesive layer (82) and the cushion on a tool (18), compressing the cushion with a compression plate (58) to force ambient temperature air from an interior thereof, piercing the cushion with a plurality of needles (44) extending through holes (60) in the compression plate, releasing the compression, heating compressed air and ejecting the heated air from the needles into the interior of the cushion to elevate the temperature of the cushion. The heat is transferred from the cushion (10) to melt the adhesive (82). The cushion (10) is again compressed by the compression plate (58) to force the heated air from the interior of the cushion and the compression is released to allow ambient temperature air to flow into the interior of the cushion to cure the adhesive (82) and bond the cover (22) to the cushion (10). The needles (44) are extracted from the cushion as the compression plate is held against the backside of the cushion to hold the cushion and the cover against the tool (18).

REFERENCES:
patent: 4692199 (1987-09-01), Kozlowski et al.
patent: 4795517 (1989-01-01), Elliot et al.
patent: 5176777 (1993-01-01), Guilhem
patent: 5372668 (1994-12-01), Bracesco
patent: 5755901 (1998-05-01), Ormachea
patent: 5792291 (1998-08-01), Ormachea

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