Work material feeding device for sewing machine

Details Work material feeding device for sewing machine Work material feeding device for sewing machine

1986-12-30

1988-04-19

Hunter, H. Hampton

Sewing

Special machines

Darning

112309, 112220, 318696, D05B 1900, H02P 800

Patent

active

047382090

ABSTRACT:
A work material feeder for a sewing machine includes a work material holder which is movable within the plane perpendicular to a passageway where a needle is moved up and down, a first pulse motor which reciprocates the work material holder in one direction within the plane synchronously with the vertical movement of said needle, a second pulse motor which reciprocates the work material holder in another direction perpendicular to the aforesaid direction synchronously with the vertical movement of the needle, and a rotation divisibility switching circuit which switches the divisibility of rotation of the first and second pulse motors in several steps, the first and second pulse motors being driven in accordance with the divisibility set by the rotation divisibility switching circuit in order to move the work material holder.

REFERENCES:
patent: 4133275 (1979-01-01), Herzer et al.
patent: 4293807 (1981-10-01), Foster et al.
patent: 4297625 (1981-10-01), Newell
patent: 4300084 (1981-11-01), Heeren
patent: 4582006 (1986-04-01), Yamane
patent: 4610210 (1986-09-01), Kinoshita et al.
patent: 4682554 (1987-07-01), Goto et al.

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