Automatic exchange of the size in an automatic sewing unit

Details Automatic exchange of the size in an automatic sewing unit Automatic exchange of the size in an automatic sewing unit

1987-03-27

1987-12-15

Hunter, H. Hampton

Sewing

Special machines

Darning

11212114, 11212115, D05B 2100, D05B 304

Patent

active

047124946

ABSTRACT:
Automatic exchange of the size in an automatic sewing unit which comprises a sewing machine displaceable along two axes and a workpiece clamp group formed by at least two half-clamps, one of which is fixed and the other of which is mobile. In order to obtain different desired sizes, the machine, positioned at a basic size .phi. corresponding to the position .phi. of the axis, is automatically displaced in a positive way for reading the displacement made by the mobile half-clamp. The size is obtained as the difference between the trigger coordinate of a proximity fixed to the sewing machine and a memorized fixed coordinate corresponding to the basic size .phi..

REFERENCES:
patent: 4006698 (1977-02-01), Scholl et al.
patent: 4312283 (1982-01-01), Fischer et al.
patent: 4455952 (1984-01-01), Morin et al.
patent: 4494470 (1985-01-01), Fischer et al.
patent: 4512271 (1985-04-01), Herdeg et al.
patent: 4632046 (1986-12-01), Barrett et al.

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