Device for guiding a lower thread in a sewing machine

Details Device for guiding a lower thread in a sewing machine Device for guiding a lower thread in a sewing machine

1988-12-16

1991-04-02

Reynolds, Wm. Carter

Sewing

Special machines

Darning

112184, 112453, D05B 1900, D05B 302, D05B 5708

Patent

active

050038966

ABSTRACT:
A device for guiding a lower thread in a zigzag stitching sewing machine is provided with a lower thread guiding unit that determines two lower thread drawing positions in accordance with a selected pattern. The lower thread guiding unit includes a lower thread guiding part which, at one of the two positions, acts on the lower thread to guide a lower thread drawing position to a center of a needle amplitude. A lower thread releasing element, at the other of the two positions, cooperates with the lower thread guiding unit to release the lower thread engaged with the lower thread guiding part.

REFERENCES:
patent: 4340003 (1982-07-01), Hanyu et al.
patent: 4702185 (1987-10-01), Hanyu et al.
patent: 4784073 (1988-11-01), Hanyu et al.

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