Motor driving device for sewing machine

Details Motor driving device for sewing machine Motor driving device for sewing machine

1991-05-16

1991-12-03

Nerbun, Peter

Sewing

Elements

Starting or stopping

112220, 112300, D05B 6936

Patent

active

050691490

ABSTRACT:
A sewing machine including a mercury switch for detecting tilt of the sewing machine. When the tilt of the sewing machine is detected by the mercury switch, a machine motor of the sewing machine is inhibited from being driven. Accordingly, even if a foot switch for driving the machine motor is depressed under the tilted condition of the sewing machine, the machine motor is not driven, thereby improving the safety of the machine. Furthermore, when the sewing machine is tilted during driving of the machine motor, the inhibition of drive of the machine motor is canceled, and a driving speed of the machine motor is set to a low speed. Under this condition, an operator can easily adjust a fabric feeding device, a thread cutting device and a rotating hook.

REFERENCES:
patent: 2418356 (1947-04-01), Kleber
patent: 2833235 (1958-05-01), Smellie
patent: 4233919 (1980-11-01), Takahashi
patent: 4437423 (1984-02-01), Yamazawa
patent: 4498078 (1985-02-01), Yoshimura et al.
patent: 4554879 (1985-11-01), Eguchi

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