Edge guiding apparatus for sewing machines

Details Edge guiding apparatus for sewing machines Edge guiding apparatus for sewing machines

1994-04-06

1995-10-31

Nerbun, Peter

Sewing

Stitch forming

Feeding work material

112153, 226 17, D05B 2710

Patent

active

054619998

ABSTRACT:
Edge guiding apparatus for a sewing machine that controls the position of a fabric ply edge relative to a reference line. A friction wheel feeds a fabric ply toward a sewing station. If the fabric ply edge displaces from the reference line, control circuitry energizes a drive motor that displaces the friction wheel along an axis perpendicular to the reference line. Simultaneously the friction wheel pivots about a support axis that is orthogonal to a plane containing the reference line and displacement axis. Pressure apparatus holds the friction wheel against a fabric ply with a substantially constant force.

REFERENCES:
patent: 3752377 (1973-08-01), Knapp
patent: 3889614 (1975-06-01), Nicolay et al.
patent: 4376415 (1983-03-01), Willenbacher
patent: 4719864 (1988-01-01), Barrett et al.
patent: 4827358 (1989-05-01), Horie et al.
patent: 4836119 (1989-06-01), Siraco et al.
patent: 5020460 (1991-06-01), Babson et al.
patent: 5186115 (1993-02-01), Rouleau et al.

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