Metal working – Upholstered article making – Cover stretching
Patent
1994-02-28
1995-03-21
Hughes, Tom
Metal working
Upholstered article making
Cover stretching
29448, 292814, B68G 705
Patent
active
053983939
ABSTRACT:
Assembly apparatus for assembling a compressible foam cushion and a flexible cover having favorable ergonomic characteristics. The apparatus includes a plate supporting the inverted cushion top having a flexible cover preliminarily positioned thereto, and a second plate engages the inverted cover bottom. A linear motor raises and lowers the second plate to selectively compress the cushion, and cover engaging rollers lift the cover adjacent the cushion sides during cushion compression to permit the cover to be attached to the cushion bottom. The cover engaging rollers are operated by a linear motor and are adjustable transverse to the direction of cushion compression to permit accommodation of various cushion configurations, and the cushion supporting plates are rotatable by a motor and selectively restrained against rotation by a brake to permit all sides of the cushion to be enclosed by the cover.
REFERENCES:
patent: 3438108 (1969-04-01), Nash
patent: 4675962 (1987-06-01), Tillner et al.
patent: 5287610 (1994-02-01), Gomolak et al.
Hughes Tom
Labor Aiding Systems, Inc.
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