Bobbin winding mechanism for a sewing machine

Details Bobbin winding mechanism for a sewing machine Bobbin winding mechanism for a sewing machine

1980-07-28

1981-04-07

Nerbun, Peter P.

Sewing

Stitch forming

Revolving-hook type

112186, 112279, D05B 5714, D05B 5900

Patent

active

042599148

ABSTRACT:
A sewing machine is provided with a spring biased platform and bobbin which are movable by the throat plate of the machine into a position wherein the bobbin is disposed to receive the lower limb of a loop of needle thread and to effect an operative connection between the bobbin and drive shaft providing for rotation of the bobbin as required for bobbin winding. An electrical switch operable by the thread of a full bobbin is provided to discontinue rotation of the bobbin drive shaft.

REFERENCES:
patent: 3115855 (1963-12-01), Ketterer
patent: 3693566 (1972-09-01), Ketterer

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