Slackened needle thread assuring unit

Details Slackened needle thread assuring unit Slackened needle thread assuring unit

1989-08-18

1991-06-04

Nerbun, Peter

Sewing

Elements

Thread guiding or handling

112253, 112254, 112292, 65H 5708, 05B 5300, 05B 6500, 112, 112, 112, 112, 112, 112

Patent

active

050204629

ABSTRACT:
A slackened needle thread assuring unit includes a thread tension member mounted on a side wall of a frame secured to the bed of a sewing machine. A thread takeup is positioned above the thread tension member. A needle/bobbin thread cutter is positioned apart from and under the frame for cutting a needle thread. A thread end holder holds an end of the thread to be cut by the needle/bobbin thread cutter. A thread guide extending across the front portion of the frame has one end supported by a support plate and the other free end defining a hook. A drive mechanism supported by the support plate reciprocally moves the hook in the direction substantially perpendicular to the threading direction of the needle thread. The hook hooks the thread threaded into the thread tension member, the thread takeup, and the needle

REFERENCES:
patent: 972894 (1910-10-01), Miller
patent: 2981214 (1961-04-01), Judet
patent: 3191562 (1965-06-01), Frankel
patent: 3532065 (1970-10-01), Marforio
patent: 3610188 (1971-10-01), Miller et al.
patent: 4879960 (1989-11-01), Prais

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