Cam-using electronic control sewing machine

Details Cam-using electronic control sewing machine Cam-using electronic control sewing machine

1986-01-15

1987-04-21

Nerbun, Peter

Sewing

Stitch forming

Zigzag

112448, 112453, D05B 302, D05B 306

Patent

active

046587446

ABSTRACT:
In the present invention, a timing pulley is moved to a start point position in which a start point switch is switched on or off by a pulse motor, the start point position is memorized in a memory of a control circuit, key codes of selected pattern selection switches are calculated, a driving step number of the pulse motor is calculated by cam position data of a selected pattern obtained by the key codes, the cam position data being previously memorized in a memory, and position data of pattern cam selected in the present time, the position data being memorized in a random access memory and a cam-follower is moved to the position of the selected pattern cam by driving the pulse motor.

REFERENCES:
patent: 3874312 (1975-04-01), Cook
patent: 4196683 (1980-04-01), Eguchi
patent: 4265188 (1981-05-01), Suzuki et al.

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