Speed control device for sewing machine

Details Speed control device for sewing machine Speed control device for sewing machine

1989-07-13

1990-12-25

Ro, Bentsu

Electricity: motive power systems

Plural diverse motor controls

Running-speed control

318 66, 318 51, H02P 700

Patent

active

049806190

ABSTRACT:
A sewing machine speed control device comprising: memory means for storing speed data representing the sewing speeds suitable for various types of sewing machines, sewing-machine-type selecting means for selecting a desired one of the various types of sewing machines and providing a sewing-machine-type selection signal for the selected type of sewing machine, data selecting means for reading the speed data of the selected type of sewing machine from the memory means in response to the sewing-machine-type selection signal, and speed control means for controlling the sewing speed of the selected sewing machine according to the speed data outputted by the data selecting means.

REFERENCES:
patent: 4257103 (1981-03-01), Suzuki et al.
patent: 4464615 (1984-08-01), Rodi
patent: 4530297 (1985-07-01), Fujikawa
patent: 4639645 (1987-01-01), Hartwig
patent: 4641069 (1987-02-01), Fujioka et al.
patent: 4644232 (1987-02-01), Nojiri et al.
patent: 4687975 (1987-08-01), Suzuki
patent: 4837491 (1989-06-01), Fujioka et al.

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