Top-feed sewing machine with presser device

Details Top-feed sewing machine with presser device Top-feed sewing machine with presser device

1991-09-23

1993-04-13

Crowder, Clifford D.

Sewing

Stitch forming

Feeding work material

112313, 112320, 112235, D05B 2700

Patent

active

052012735

ABSTRACT:
The presser device includes a feeder foot, a holding foot and a link transmission provided between the two feet, the two feet cooperating alternately. The feeder foot has a spur which cooperates temporarily with a mating surface on the cloth feeder. During the feed phase, the spur is obliquely inclined and does not press against the material being sewn, and therefore permits dependable ruffling of an upper layer of sewing material with respect to a lower layer of sewing material. At the start and at the end of the feed phase, the spur is vertically directed and presses against the sewing material, and thus smooth tension-ruffle-free sewing together, particularly of thin material, is made possible.

REFERENCES:
patent: 3828704 (1974-08-01), Von Hagen et al.
patent: 3935826 (1976-02-01), Nicolay et al.
patent: 4116145 (1978-09-01), Nicolay
patent: 4422398 (1983-12-01), Dusch
patent: 4446803 (1984-05-01), Nicolay et al.
patent: 4724783 (1988-02-01), Morimito

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