B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 44/18 (2006.01)
Patent
CA 2739134
A method for producing a foamed article (48) including a supporting element (42), a foam layer (50), and an upholstery cover (10) applied on said foam layer (50), comprising the steps of: - forming said upholstery cover (10) by stitching together a plurality of lengths of upholstery cover (10', 10", 10"'); - positioning the sewn upholstery cover (10) on a convex positioning surface (16) of a positioning member (14); - withholding the sewn upholstery cover (10) on said positioning member (14) by means of a first suction system (24); - setting said positioning member (14) with the sewn upholstery cover (10) withheld thereon by suction in a bottom die (28) of a foaming die; - deactivating said first suction system (24) and withholding the upholstery cover (10) on a concave positioning surface (34) of said bottom die (28) by means of a second suction system (36); - extracting said positioning member (14) from said bottom die (28) leaving said upholstery cover (10) positioned and withheld by suction on said concave positioning surface (34); - positioning a rigid supporting element (42) on a plunger (40) of said foaming die and closing the plunger (40) on said bottom die (28) so as to form a foaming cavity (44) between an outer surface of said supporting element (42) and said upholstery cover (10); and - injecting foaming material in said foaming cavity (44) and polymerizing the foaming material.
Macrae & Co.
Tecnocad Progetti S.p.a.
LandOfFree
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