Linear step motor type driving apparatus for driving a longitudi

Details Linear step motor type driving apparatus for driving a longitudi Linear step motor type driving apparatus for driving a longitudi

1989-05-24

1990-10-16

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, H02P 800

Patent

active

049638092

ABSTRACT:
A driving assembly for a horizontally-moving vertically-suspended body, for example a curtain, comprises a moving element disposed in a channel of a rail. The moving element is mounted with an electromagnet which receives either discrete pulses or continuous current for an electrical linear step motor. Coils of the electromagnet produce a magnetomotive force operable to cause a row of pole teeth of the magnet to repulse a corresponding opposed scale connected to the channel, thereby moving the moving element in the channel.

REFERENCES:
patent: 3457482 (1969-07-01), Sawyer
"Moving Coil Linear DC Motor for Automatic Automotive Curtain Systems", Developed by the Technology Development Department, Toyota Auto Body Co., Ltd. (1985).

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