Driving apparatus for retaining frame of object to be sewed in a

Details Driving apparatus for retaining frame of object to be sewed in a Driving apparatus for retaining frame of object to be sewed in a

1980-06-18

1982-12-28

Nerbun, Peter P.

Sewing

Special machines

Darning

D05B 2100

Patent

active

043655645

ABSTRACT:
A driving apparatus for retaining frame of object-to-be-sewed in automatic sewing machine with driving shaft for causing the retaining frame on an object-to-be-sewed to move in the X-axis direction or the Y-axis direction relative to the position of a sewing needle to perform an optional sewing operation. A pulse generator for moving the retaining frame is provided for generating a given number of pulses, between given rotation angles of the driving shaft, in a synchronous relationship with the rotation of the operational shaft, so that the retaining frame of the object-to-be-sewed is moved in an automatic synchronous relationship with respect to the movement of the sewing needle.

REFERENCES:
patent: 3742879 (1973-07-01), Schaefer, Jr.
patent: 4152994 (1979-05-01), Sugiyama
patent: 4254724 (1981-03-01), Conrads

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