Thread trimmer driving mechanism for sewing machines

Details Thread trimmer driving mechanism for sewing machines Thread trimmer driving mechanism for sewing machines

1978-03-02

1979-02-13

Feldbaum, Ronald

Sewing

Elements

Thread cutting, severing or breaking

112300, D05B 6500

Patent

active

041389581

ABSTRACT:
A driving mechanism for actuating an underbed thread trimmer in a post-type sewing machine. The unit is selectively controlled by a solenoid and actuated by two cams located on the hook shaft of the feeding post. Rotary motion of the shaft and cams is converted into translational motion for the trimmer by a pivoting swivel lever and cam follower combination.

REFERENCES:
patent: 3371633 (1968-03-01), Hedegaard
patent: 3599933 (1967-12-01), Bono
patent: 3605664 (1971-09-01), Hedegaard
patent: 3624735 (1971-11-01), Hedegaard
patent: 3709176 (1973-01-01), Papajewski
patent: 3776161 (1973-12-01), Papajewski et al.

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