Selecting mechanism of a double-function sewing machine

Details Selecting mechanism of a double-function sewing machine Selecting mechanism of a double-function sewing machine

1987-03-30

1988-01-26

Nerbun, Peter

Sewing

Stitch forming

Convertible

D05B 114

Patent

active

047210494

ABSTRACT:
In a sewing machine having two mechanisms different in sewing functions installed within one machine frame a single drive motor is provided and functions are alternately actuated by means of a clutch mechanism. Transmission of a driving force is made by keys and corresponding key grooves, and a selection mechanism has a switch-checking device for avoiding an erroneous operation. A release device of the switch-checking device is actuated by operation of the flywheel, to avoid dangers of erroneous switching during operation.

REFERENCES:
patent: 4438716 (1984-03-01), Koide et al.
patent: 4445450 (1984-05-01), Ebata
patent: 4498405 (1985-02-01), Hanyu et al.

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