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US 5,395,473 AGranted
Bonded seat assembly
AssigneeGeneral Motors Corporation
InventorJames F. Nixon
Life of this patent
Estimating the term…
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AssigneeGeneral Motors Corporation
InventorJames F. Nixon
Estimating the term…
Seat cushions and backs comprising a foam bun and a trim cover are made by applying a molten hot melt bead to the trim cover or the foam bun in a predetermined pattern that matches or produces style conformations in the seating portion, pressing the trim cover and the foam cushion together in localized areas within a predetermined amount of time with a tool that has rails arranged in the same predetermined pattern to establish intimate contact of the cover and bun with the hot melt bead, and holding the trim cover and the foam cushion in intimate contact with the hot melt bead for a predetermined amount of time while the hot melt bead cools and bonds the trim cover to the foam cushion beneath the style conformations. The tool or at least the rails preferably provide a heat sink to facilitate cooling the hot melt adhesive bead. The bonding method can be used with a wide variety of seating materials including heat-sensitive seating fabrics and laminates and foam-backed seating materials.
A method of manufacturing a seat assembly that has a foam bun and a trim cover for the foam bun that has a seating surface attached to a seating surface of the foam bun, comprising:
A method of manufacturing a sculptured seat assembly having a foam bun that includes raised side bolsters and a trim cover for the foam bun having a seating portion covering a seating surface of the foam bun including part of the side bolsters comprising:
A method of manufacturing a seat assembly that has a foam bun and a trim cover for the foam bun that has a seating portion covering a seating surface of the foam bun comprising:
Dependencies are inferred from the claim text.