US 5,396,854 AGranted

Method for handling and sewing the perimeter of upholstered articles

AssigneeFabricas Lucia Antonio Betere, S.A.

InventorJose L. A. Noqueras

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Abstract

A method for handling and sewing the perimeter of upholstered articles, in which the upholstered article is fed through the sewing machine on a table with a sliding surface in one of whose sides the said sewing machine is fixed, which is characterized by having some pusher elements which protrude from the plane of the table through some longitudinal and circumference arch shaped grooves, which are driven from the lower part of said table. The longitudinal pushers assist the linear feed of the upholstered article until its corner reaches the height of the sewing machine, when they withdraw to their initial position, at the same time as the turning pushers start to work. These turning pushers make the upholstered article turn, describing a circumference arch path of ninety degrees, while the head of said sewing machine sews the corner of said upholstered article in a synchronized manner. When the turn has been completed, the turning pushers withdraw to their initial position and the previous longitudinal pushers start to work.

Claims14

Dependent claims

A method for sewing a perimeter seam of an upholstered workpiece comprising the steps of:

(a) moving a first pusher element which protrudes from a longitudinal groove in a table having a planar, sliding surface from an initial position along said groove such that said first pusher element contacts an upholstered workpiece positioned upon said planar surface of said table;
(b) moving said first pusher element along a length of said groove in a rectilinear direction such that said upholstered workpiece is moved in a rectilinear direction beneath a sewing machine located adjacent said table;
(c) sewing a seam in said upholstered workpiece as said upholstered workpiece moves beneath said sewing machine;
(d) moving said first pusher element to its said initial position when a corner of said upholstered workpiece reaches said sewing machine;
(e) moving a second pusher element, which protrudes from an arcuate groove in said table and initially positioned adjacent one side of said table, in an arcuate path while said second pusher element contacts said upholstered workpiece such that said upholstered workpiece is turned in an arcuate path away from said sewing machine and towards said table in a counter-clockwise direction;
and
(f) sewing a corner seam in said upholstered workpiece while said workpiece is being turned by said second pusher element.

4 more elements

Dependencies are inferred from the claim text.