Patent ID: 6357371
Filing Date: 2002-03-19
Classification: D04B,D05B,D10B

Abstract:
A method for the production of sewn seams for which all stitch and seam generating functional parts of a sewing device are situated on only one side of a textile, said stitch and seam generating functional parts moving in planes which are directed obliquely towards the textile and the textile being laid on a support unit which allows the penetration of the stitch and seam generating functional parts, said method comprising causing at least two loops of threads to penetrate one another and such that all stitch and seam generating functional parts of the device are situated on only one side of the textile, said stitch and seam generating functional parts moving in planes directed obliquely towards the textile and intersecting each other and the stitch and seam generating functional parts describing in said planes respective individual coupling curves which describe a permanent change between a principally linear and a principally rotatory movement whereby the individual coupling curves possess on the other side of the textile a sufficient approach towards each other to transmit a loop of a thread from one stitch and seam generating functional part to a next stitch and seam generating functional part, said support unit permitting the penetration of the stitch and seam generating functional parts and the textile being fixed by a counter-holder on said support unit, whereby said device being moved over the textile in steps making use of a step-moving transport unit which is switched electronically or mechanically by a drive shaft during rotatory movements of the stitch and seam generating functional parts so that the stitch and seam generating functional parts rotate around an imaginary axis which lies in the textile and at a beginning of the process the device is positioned on the textile in a way that the stitch and seam generating functional parts penetrate the textile in perpendicularly.