Power limiting arrangement in a sewing machine

Details Power limiting arrangement in a sewing machine Power limiting arrangement in a sewing machine

1978-08-28

1979-05-29

Nerbun, Peter

Sewing

Work manipulating

Guides

D05B 302

Patent

active

041563972

ABSTRACT:
A sewing machine is disclosed in which electromechanical actuators are incorporated. By selectively supplying power to position the electromechanical actuators, the stitch forming instrumentalities of the sewing machine may be operatively controlled. In order to reduce heat dissipation within the sewing machine under abnormal conditions where the actuators are locked for long periods of time, the sewing machine main drive motor motion is monitored. After a predetermined period of inactivity of the sewing machine main drive motor, the power which can be supplied to the actuators is limited.

REFERENCES:
patent: 3369160 (1968-02-01), Koppel et al.
patent: 4016821 (1977-04-01), Minalga
patent: 4108093 (1978-08-01), Watanabe et al.

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