Sewing machine

Details Sewing machine Sewing machine

2005-08-02

2005-08-02

Nerbun, Peter (Department: 3765)

Sewing

Stitch forming

Revolving-hook type

C112S231000

Reexamination Certificate

active

06923130

ABSTRACT:
A sewing machine with a hook (8) that is drivable in rotation about a vertical axis comprises a bobbin case (21) with a lifter cam (31). A case lifter (33) is provided, having a sensing lever (40) and a lifter lever (32) that bears against a lifter cam (28). The sensing lever rests on a cam face (42) of an axial cam disk (39) which is mounted on the transmission shaft that actuates a hook-driving shaft (10).

REFERENCES:
patent: 4572091 (1986-02-01), Gustmann et al.
patent: 4669401 (1987-06-01), Dusch
patent: 872148 (1953-02-01), None
patent: 100 25 852 (2001-11-01), None
patent: 100 25 851 (2002-02-01), None

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